change!(server): auth is now required for all routes

- `-proton-username` flag for cli update
- `-proton-password` flag for cli update
- `UPDATER_PROTONVPN_USERNAME` option for periodic updates
- `UPDATER_PROTONVPN_PASSWORD` option for periodic updates

.devcontainer/.dockerignore

@@ -1,5 +1,4 @@
 .dockerignore
 devcontainer.json
-docker-compose.yml
 Dockerfile
 README.md

.devcontainer/Dockerfile

@@ -1,2 +1,2 @@
-FROM qmcgaw/godevcontainer
-RUN apk add wireguard-tools
+FROM ghcr.io/qdm12/godevcontainer:v0.21-alpine
+RUN apk add wireguard-tools htop openssl

.devcontainer/README.md

@@ -2,68 +2,47 @@
 
 Development container that can be used with VSCode.
 
-It works on Linux, Windows and OSX.
+It works on Linux, Windows (WSL2) and OSX.
 
 ## Requirements
 
 - [VS code](https://code.visualstudio.com/download) installed
-- [VS code remote containers extension](https://marketplace.visualstudio.com/items?itemName=ms-vscode-remote.remote-containers) installed
+- [VS code dev containers extension](https://marketplace.visualstudio.com/items?itemName=ms-vscode-remote.remote-containers) installed
 - [Docker](https://www.docker.com/products/docker-desktop) installed and running
-    - If you don't use Linux or WSL 2, share your home directory `~/` and the directory of your project with Docker Desktop
-- [Docker Compose](https://docs.docker.com/compose/install/) installed
-- Ensure your host has the following and that they are accessible by Docker:
-    - `~/.ssh` directory
-    - `~/.gitconfig` file (can be empty)
 
 ## Setup
 
+1. Create the following files and directory on your host if you don't have them:
+
+    ```sh
+    touch ~/.gitconfig ~/.zsh_history
+    mkdir -p ~/.ssh
+    ```
+
+1. **For OSX hosts**: ensure the project directory and your home directory `~` are accessible by Docker.
 1. Open the command palette in Visual Studio Code (CTRL+SHIFT+P).
-1. Select `Remote-Containers: Open Folder in Container...` and choose the project directory.
-1. For Docker running on Windows HyperV, if you want to use SSH keys, bind mount them at `/tmp/.ssh` by changing the `volumes` section in the [docker-compose.yml](docker-compose.yml).
+1. Select `Dev-Containers: Open Folder in Container...` and choose the project directory.
 
 ## Customization
 
-### Customize the image
+For any customization to take effect, you should "rebuild and reopen":
 
-You can make changes to the [Dockerfile](Dockerfile) and then rebuild the image. For example, your Dockerfile could be:
+1. Open the command palette in Visual Studio Code (CTRL+SHIFT+P)
+2. Select `Dev-Containers: Rebuild Container`
 
-```Dockerfile
-FROM qmcgaw/godevcontainer
-USER root
-RUN apk add curl
-USER vscode
-```
+Changes you can make are notably:
 
-Note that you may need to use `USER root` to build as root, and then change back to `USER vscode`.
+- Changes to the Docker image in [Dockerfile](Dockerfile)
+- Changes to VSCode **settings** and **extensions** in [devcontainer.json](devcontainer.json).
+- Change the entrypoint script by adding a bind mount in [devcontainer.json](devcontainer.json) of a shell script to `/root/.welcome.sh` to replace the [current welcome script](https://github.com/qdm12/godevcontainer/blob/master/shell/.welcome.sh). For example:
 
-To rebuild the image, either:
-
-- With VSCode through the command palette, select `Remote-Containers: Rebuild and reopen in container`
-- With a terminal, go to this directory and `docker-compose build`
-
-### Customize VS code settings
-
-You can customize **settings** and **extensions** in the [devcontainer.json](devcontainer.json) definition file.
-
-### Entrypoint script
-
-You can bind mount a shell script to `/home/vscode/.welcome.sh` to replace the [current welcome script](shell/.welcome.sh).
-
-### Publish a port
-
-To access a port from your host to your development container, publish a port in [docker-compose.yml](docker-compose.yml).
-
-### Run other services
-
-1. Modify [docker-compose.yml](docker-compose.yml) to launch other services at the same time as this development container, such as a test database:
-
-    ```yml
-      database:
-        image: postgres
-        restart: always
-        environment:
-          POSTGRES_PASSWORD: password
+    ```json
+    // Welcome script
+    {
+        "source": "/yourpath/.welcome.sh",
+        "target": "/root/.welcome.sh",
+        "type": "bind"
+    },
     ```
 
-1. In [devcontainer.json](devcontainer.json), change the line `"runServices": ["vscode"],` to `"runServices": ["vscode", "database"],`.
-1. In the VS code command palette, rebuild the container.
+- More options are documented in the [devcontainer.json reference](https://containers.dev/implementors/json_reference/).

.devcontainer/devcontainer.json

@@ -1,81 +1,111 @@
-{
-    "name": "gluetun-dev",
-    "dockerComposeFile": [
-        "docker-compose.yml"
-    ],
-    "service": "vscode",
-    "runServices": [
-        "vscode"
-    ],
-    "shutdownAction": "stopCompose",
-    "postCreateCommand": "~/.windows.sh && go mod download && go mod tidy",
-    "workspaceFolder": "/workspace",
-    "extensions": [
-        "golang.go",
-        "eamodio.gitlens", // IDE Git information
-        "davidanson.vscode-markdownlint",
-        "ms-azuretools.vscode-docker", // Docker integration and linting
-        "shardulm94.trailing-spaces", // Show trailing spaces
-        "Gruntfuggly.todo-tree", // Highlights TODO comments
-        "bierner.emojisense", // Emoji sense for markdown
-        "stkb.rewrap", // rewrap comments after n characters on one line
-        "vscode-icons-team.vscode-icons", // Better file extension icons
-        "github.vscode-pull-request-github", // Github interaction
-        "redhat.vscode-yaml", // Kubernetes, Drone syntax highlighting
-        "bajdzis.vscode-database", // Supports connections to mysql or postgres, over SSL, socked
-        "IBM.output-colorizer", // Colorize your output/test logs
-        "mohsen1.prettify-json", // Prettify JSON data
-    ],
-    "settings": {
-        "files.eol": "\n",
-        "remote.extensionKind": {
-            "ms-azuretools.vscode-docker": "workspace"
-        },
-        "editor.codeActionsOnSaveTimeout": 3000,
-        "go.useLanguageServer": true,
-        "[go]": {
-            "editor.formatOnSave": true,
-            "editor.codeActionsOnSave": {
-                "source.organizeImports": true,
-            },
-            // Optional: Disable snippets, as they conflict with completion ranking.
-            "editor.snippetSuggestions": "none"
-        },
-        "[go.mod]": {
-            "editor.formatOnSave": true,
-            "editor.codeActionsOnSave": {
-                "source.organizeImports": true,
-            },
-        },
-        "gopls": {
-            "usePlaceholders": false,
-            "staticcheck": true
-        },
-        "go.autocompleteUnimportedPackages": true,
-        "go.gotoSymbol.includeImports": true,
-        "go.gotoSymbol.includeGoroot": true,
-        "go.lintTool": "golangci-lint",
-        "go.buildOnSave": "workspace",
-        "go.lintOnSave": "workspace",
-        "go.vetOnSave": "workspace",
-        "editor.formatOnSave": true,
-        "go.toolsEnvVars": {
-            "GOFLAGS": "-tags=",
-            // "CGO_ENABLED": 1 // for the race detector
-        },
-        "gopls.env": {
-            "GOFLAGS": "-tags="
-        },
-        "go.testEnvVars": {
-            "": ""
-        },
-        "go.testFlags": [
-            "-v",
-            // "-race"
-        ],
-        "go.testTimeout": "10s",
-        "go.coverOnSingleTest": true,
-        "go.coverOnSingleTestFile": true,
-        "go.coverOnTestPackage": true
-    }
+{
+    "name": "gluetun-dev",
+    // User defined settings
+    "containerEnv": {
+        "TZ": ""
+    },
+    // Fixed settings
+    "build": {
+        "dockerfile": "./Dockerfile"
+    },
+    "postCreateCommand": "~/.windows.sh && go mod download",
+    "capAdd": [
+        "NET_ADMIN", // Gluetun specific
+        "SYS_PTRACE" // for dlv Go debugging
+    ],
+    "securityOpt": [
+        "seccomp=unconfined" // for dlv Go debugging
+    ],
+    "mounts": [
+        // Zsh commands history persistence
+        {
+            "source": "${localEnv:HOME}/.zsh_history",
+            "target": "/root/.zsh_history",
+            "type": "bind"
+        },
+        // Git configuration file
+        {
+            "source": "${localEnv:HOME}/.gitconfig",
+            "target": "/root/.gitconfig",
+            "type": "bind"
+        },
+        // SSH directory for Linux, OSX and WSL
+        // On Linux and OSX, a symlink /mnt/ssh <-> ~/.ssh is
+        // created in the container. On Windows, files are copied
+        // from /mnt/ssh to ~/.ssh to fix permissions.
+        {
+            "source": "${localEnv:HOME}/.ssh",
+            "target": "/mnt/ssh",
+            "type": "bind"
+        },
+        // Docker socket to access the host Docker server
+        {
+            "source": "/var/run/docker.sock",
+            "target": "/var/run/docker.sock",
+            "type": "bind"
+        }
+    ],
+    "customizations": {
+        "vscode": {
+            "extensions": [
+                "golang.go",
+                "eamodio.gitlens", // IDE Git information
+                "davidanson.vscode-markdownlint",
+                "ms-azuretools.vscode-docker", // Docker integration and linting
+                "shardulm94.trailing-spaces", // Show trailing spaces
+                "Gruntfuggly.todo-tree", // Highlights TODO comments
+                "bierner.emojisense", // Emoji sense for markdown
+                "stkb.rewrap", // rewrap comments after n characters on one line
+                "vscode-icons-team.vscode-icons", // Better file extension icons
+                "github.vscode-pull-request-github", // Github interaction
+                "redhat.vscode-yaml", // Kubernetes, Drone syntax highlighting
+                "bajdzis.vscode-database", // Supports connections to mysql or postgres, over SSL, socked
+                "IBM.output-colorizer", // Colorize your output/test logs
+                "github.copilot" // AI code completion
+            ],
+            "settings": {
+                "files.eol": "\n",
+                "remote.extensionKind": {
+                    "ms-azuretools.vscode-docker": "workspace"
+                },
+                "go.useLanguageServer": true,
+                "[go]": {
+                    "editor.codeActionsOnSave": {
+                        "source.organizeImports": "explicit"
+                    }
+                },
+                "[go.mod]": {
+                    "editor.codeActionsOnSave": {
+                        "source.organizeImports": "explicit"
+                    }
+                },
+                "gopls": {
+                    "usePlaceholders": false,
+                    "staticcheck": true,
+                    "ui.diagnostic.analyses": {
+                        "ST1000": false
+                    },
+                    "formatting.gofumpt": true,
+                },
+                "go.lintTool": "golangci-lint",
+                "go.lintOnSave": "package",
+                "editor.formatOnSave": true,
+                "go.buildTags": "linux",
+                "go.toolsEnvVars": {
+                    "CGO_ENABLED": "0"
+                },
+                "go.testEnvVars": {
+                    "CGO_ENABLED": "1"
+                },
+                "go.testFlags": [
+                    "-v",
+                    "-race"
+                ],
+                "go.testTimeout": "10s",
+                "go.coverOnSingleTest": true,
+                "go.coverOnSingleTestFile": true,
+                "go.coverOnTestPackage": true
+            }
+        }
+    }
 }

.devcontainer/docker-compose.yml

@@ -1,33 +0,0 @@
-version: "3.7"
-
-services:
-  vscode:
-    build: .
-    image: godevcontainer
-    devices:
-      - /dev/net/tun:/dev/net/tun
-    volumes:
-      - ../:/workspace
-      # Docker socket to access Docker server
-      - /var/run/docker.sock:/var/run/docker.sock
-      # Docker configuration
-      - ~/.docker:/root/.docker:z
-      # SSH directory for Linux, OSX and WSL
-      - ~/.ssh:/root/.ssh:z
-      # For Windows without WSL, a copy will be made
-      # from /tmp/.ssh to ~/.ssh to fix permissions
-      #- ~/.ssh:/tmp/.ssh:ro
-      # Shell history persistence
-      - ~/.zsh_history:/root/.zsh_history:z
-      # Git config
-      - ~/.gitconfig:/root/.gitconfig:z
-    environment:
-      - TZ=
-    cap_add:
-      # For debugging with dlv
-      # - SYS_PTRACE
-      - NET_ADMIN
-    security_opt:
-      # For debugging with dlv
-      - seccomp:unconfined
-    entrypoint: zsh -c "while sleep 1000; do :; done"

.github/CONTRIBUTING.md

@@ -13,6 +13,6 @@ Contributions are [released](https://help.github.com/articles/github-terms-of-se
 
 ## Resources
 
-- [Gluetun guide on development](https://github.com/qdm12/gluetun/wiki/Development)
+- [Gluetun guide on development](https://github.com/qdm12/gluetun-wiki/blob/main/contributing/development.md)
 - [Using Pull Requests](https://help.github.com/articles/about-pull-requests/)
 - [How to Contribute to Open Source](https://opensource.guide/how-to-contribute/)

.github/ISSUE_TEMPLATE/bug.yml

@@ -7,13 +7,18 @@ body:
     attributes:
       value: |
         Thanks for taking the time to fill out this bug report!
+
+        ⚠️ Your issue will be instantly closed as not planned WITHOUT explanation if:
+        - you do not fill out **the title of the issue** ☝️
+        - you do not provide the **Gluetun version** as requested below
+        - you provide **less than 10 lines of logs** as requested below
   - type: dropdown
     id: urgent
     attributes:
       label: Is this urgent?
       description: |
         Is this a critical bug, or do you need this fixed urgently?
-        If this is urgent, note you can use one of the [image tags available](https://github.com/qdm12/gluetun/wiki/Docker-image-tags) if that can help.
+        If this is urgent, note you can use one of the [image tags available](https://github.com/qdm12/gluetun-wiki/blob/main/setup/docker-image-tags.md) if that can help.
       options:
         - "No"
         - "Yes"
@@ -40,10 +45,12 @@ body:
     attributes:
       label: VPN service provider
       options:
+        - AirVPN
         - Custom
         - Cyberghost
         - ExpressVPN
         - FastestVPN
+        - Giganews
         - HideMyAss
         - IPVanish
         - IVPN
@@ -54,8 +61,10 @@ body:
         - PrivateVPN
         - ProtonVPN
         - PureVPN
+        - SlickVPN
         - Surfshark
         - TorGuard
+        - VPNSecure.me
         - VPNUnlimited
         - VyprVPN
         - WeVPN
@@ -72,6 +81,7 @@ body:
         - Portainer
         - Kubernetes
         - Podman
+        - Unraid
         - Other
     validations:
       required: true
@@ -81,7 +91,7 @@ body:
       label: What is the version of Gluetun
       description: |
         Copy paste the version line at the top of your logs.
-        It should be in the form `Running version latest built on 2020-03-13T01:30:06Z (commit d0f678c)`.
+        It MUST be in the form `Running version latest built on 2020-03-13T01:30:06Z (commit d0f678c)`.
     validations:
       required: true
   - type: textarea
@@ -94,9 +104,9 @@ body:
   - type: textarea
     id: logs
     attributes:
-      label: Share your logs
+      label: Share your logs (at least 10 lines)
       description: No sensitive information is logged out except when running with `LOG_LEVEL=debug`.
-      render: log
+      render: plain text
     validations:
       required: true
   - type: textarea

.github/ISSUE_TEMPLATE/config.yml

@@ -1,6 +1,10 @@
+blank_issues_enabled: false
 contact_links:
+  - name: Report a Wiki issue
+    url: https://github.com/qdm12/gluetun-wiki/issues/new/choose
+    about: Please create an issue on the gluetun-wiki repository.
   - name: Configuration help?
-    url: https://github.com/qdm12/gluetun/discussions/new
+    url: https://github.com/qdm12/gluetun/discussions/new/choose
     about: Please create a Github discussion.
   - name: Unraid template issue
     url: https://github.com/qdm12/gluetun/discussions/550

.github/ISSUE_TEMPLATE/provider.md

@@ -6,12 +6,35 @@ labels: ":bulb: New provider"
 
 ---
 
-One of the following is required:
+Important notes:
 
-- Publicly accessible URL to a zip file containing the Openvpn configuration files
-- Publicly accessible URL to a structured (JSON etc.) list of servers **and attach** an example Openvpn configuration file for both TCP and UDP
+- There is no need to support both OpenVPN and Wireguard for a provider, but it's better to support both if possible
+- We do **not** implement authentication to access servers information behind a login. This is way too time consuming unfortunately
+- If it's not possible to support a provider natively, you can still use the [the custom provider](https://github.com/qdm12/gluetun-wiki/blob/main/setup/providers/custom.md)
+
+## For Wireguard
+
+Wireguard can be natively supported ONLY if:
+
+- the `PrivateKey` field value is the same across all servers for one user account
+- the `Address` field value is:
+  - can be found in a structured (JSON etc.) list of servers publicly available; OR
+  - the same across all servers for one user account
+- the `PublicKey` field value is:
+  - can be found in a structured (JSON etc.) list of servers publicly available; OR
+  - the same across all servers for one user account
+- the `Endpoint` field value:
+  - can be found in a structured (JSON etc.) list of servers publicly available
+  - can be determined using a pattern, for example using country codes in hostnames
+
+If any of these conditions are not met, Wireguard cannot be natively supported or there is no advantage compared to using a custom Wireguard configuration file.
+
+If **all** of these conditions are met, please provide an answer for each of them.
+
+## For OpenVPN
+
+OpenVPN can be natively supported ONLY if one of the following can be provided, by preference in this order:
+
+- Publicly accessible URL to a structured (JSON etc.) list of servers **and attach** an example Openvpn configuration file for both TCP and UDP; OR
+- Publicly accessible URL to a zip file containing the Openvpn configuration files; OR
 - Publicly accessible URL to the list of servers **and attach** an example Openvpn configuration file for both TCP and UDP
-
-If the list of servers requires to login **or** is hidden behind an interactive configurator,
-you can only use a custom Openvpn configuration file.
-[The Wiki](https://github.com/qdm12/gluetun/wiki/Openvpn-file) describes how to do so.

.github/ISSUE_TEMPLATE/wiki issue.yml

@@ -1,18 +0,0 @@
-name: Wiki issue
-description: Report a Wiki issue
-title: "Wiki issue: "
-labels: ["📄 Wiki issue"]
-body:
-  - type: input
-    id: url
-    attributes:
-      label: "URL to the Wiki page"
-      placeholder: "https://github.com/qdm12/gluetun/wiki/OpenVPN-options"
-    validations:
-      required: true
-  - type: textarea
-    id: description
-    attributes:
-      label: "What's the issue?"
-    validations:
-      required: true

.github/labels.yml

@@ -1,110 +1,152 @@
-- name: "Bug :bug:"
-  color: "b60205"
-  description: ""
-- name: "Feature request :bulb:"
-  color: "0e8a16"
-  description: ""
-- name: "Help wanted :pray:"
-  color: "4caf50"
-  description: ""
-- name: "Documentation :memo:"
-  color: "c5def5"
-  description: ""
-- name: "Needs more info :thinking:"
-  color: "795548"
-  description: ""
+- name: "Status: 🗯️ Waiting for feedback"
+  color: "f7d692"
+- name: "Status: 🔴 Blocked"
+  color: "f7d692"
+  description: "Blocked by another issue or pull request"
+- name: "Status: 📌 Before next release"
+  color: "f7d692"
+  description: "Has to be done before the next release"
+- name: "Status: 🔒 After next release"
+  color: "f7d692"
+  description: "Will be done after the next release"
+- name: "Status: 🟡 Nearly resolved"
+  color: "f7d692"
+  description: "This might be resolved or is about to be resolved"
 
-# Priority
-- name: "🚨 Urgent"
-  color: "d5232f"
-  description: ""
-- name: "💤 Low priority"
-  color: "4285f4"
-  description: ""
+- name: "Closed: ⚰️ Inactive"
+  color: "959a9c"
+  description: "No answer was received for weeks"
+- name: "Closed: 👥 Duplicate"
+  color: "959a9c"
+  description: "Issue duplicates an existing issue"
+- name: "Closed: 🗑️ Bad issue"
+  color: "959a9c"
+- name: "Closed: ☠️ cannot be done"
+  color: "959a9c"
+
+- name: "Priority: 🚨 Urgent"
+  color: "03adfc"
+- name: "Priority: 💤 Low priority"
+  color: "03adfc"
+
+- name: "Complexity: ☣️ Hard to do"
+  color: "ff9efc"
+- name: "Complexity: 🟩 Easy to do"
+  color: "ff9efc"
+
+- name: "Popularity: ❤️‍🔥 extreme"
+  color: "ffc7ea"
+- name: "Popularity: ❤️ high"
+  color: "ffc7ea"
 
 # VPN providers
-- name: ":cloud: Cyberghost"
+- name: "☁️ AirVPN"
   color: "cfe8d4"
-  description: ""
-- name: ":cloud: HideMyAss"
+- name: "☁️ Custom"
   color: "cfe8d4"
-  description: ""
-- name: ":cloud: IPVanish"
+- name: "☁️ Cyberghost"
   color: "cfe8d4"
-  description: ""
-- name: ":cloud: IVPN"
+- name: "☁️ Giganews"
   color: "cfe8d4"
-  description: ""
-- name: ":cloud: ExpressVPN"
+- name: "☁️ HideMyAss"
   color: "cfe8d4"
-  description: ""
-- name: ":cloud: FastestVPN"
+- name: "☁️ IPVanish"
   color: "cfe8d4"
-  description: ""
-- name: ":cloud: Mullvad"
+- name: "☁️ IVPN"
   color: "cfe8d4"
-  description: ""
-- name: ":cloud: NordVPN"
+- name: "☁️ ExpressVPN"
   color: "cfe8d4"
-  description: ""
-- name: ":cloud: Perfect Privacy"
+- name: "☁️ FastestVPN"
   color: "cfe8d4"
-  description: ""
-- name: ":cloud: PIA"
+- name: "☁️ Mullvad"
   color: "cfe8d4"
-  description: ""
-- name: ":cloud: Privado"
+- name: "☁️ NordVPN"
   color: "cfe8d4"
-  description: ""
-- name: ":cloud: PrivateVPN"
+- name: "☁️ Perfect Privacy"
   color: "cfe8d4"
-  description: ""
-- name: ":cloud: ProtonVPN"
+- name: "☁️ PIA"
   color: "cfe8d4"
-- name: ":cloud: PureVPN"
+- name: "☁️ Privado"
   color: "cfe8d4"
-  description: ""
-- name: ":cloud: Surfshark"
+- name: "☁️ PrivateVPN"
   color: "cfe8d4"
-  description: ""
-- name: ":cloud: Torguard"
+- name: "☁️ ProtonVPN"
   color: "cfe8d4"
-  description: ""
-- name: ":cloud: VPNUnlimited"
+- name: "☁️ PureVPN"
   color: "cfe8d4"
-  description: ""
-- name: ":cloud: Vyprvpn"
+- name: "☁️ SlickVPN"
   color: "cfe8d4"
-  description: ""
-- name: ":cloud: WeVPN"
+- name: "☁️ Surfshark"
   color: "cfe8d4"
-  description: ""
-- name: ":cloud: Windscribe"
+- name: "☁️ Torguard"
+  color: "cfe8d4"
+- name: "☁️ VPNSecure.me"
+  color: "cfe8d4"
+- name: "☁️ VPNUnlimited"
+  color: "cfe8d4"
+- name: "☁️ Vyprvpn"
+  color: "cfe8d4"
+- name: "☁️ WeVPN"
+  color: "cfe8d4"
+- name: "☁️ Windscribe"
   color: "cfe8d4"
-  description: ""
 
-# Problem category
-- name: "Openvpn"
+- name: "Category: User error 🤦"
+  from_name: "Category: Config problem 📝"
   color: "ffc7ea"
-  description: ""
-- name: "Wireguard"
+- name: "Category: Healthcheck 🩺"
   color: "ffc7ea"
-  description: ""
-- name: "Unbound (DNS over TLS)"
+- name: "Category: Documentation ✒️"
+  description: "A problem with the readme or a code comment."
   color: "ffc7ea"
-  description: ""
-- name: "Firewall"
+- name: "Category: Maintenance ⛓️"
+  description: "Anything related to code or other maintenance"
   color: "ffc7ea"
-  description: ""
-- name: "HTTP proxy"
+- name: "Category: Logs 📚"
+  description: "Something to change in logs"
   color: "ffc7ea"
-  description: ""
-- name: "Shadowsocks"
+- name: "Category: Good idea 🎯"
+  description: "This is a good idea, judged by the maintainers"
   color: "ffc7ea"
-  description: ""
-- name: "Healthcheck server"
+- name: "Category: Motivated! 🙌"
+  description: "Your pumpness makes me pumped! The issue or PR shows great motivation!"
   color: "ffc7ea"
-  description: ""
-- name: "Control server"
+- name: "Category: Foolproof settings 👼"
+  color: "ffc7ea"
+- name: "Category: Label missing ❗"
+  color: "ffc7ea"
+- name: "Category: updater ♻️"
+  color: "ffc7ea"
+  description: "Concerns the code to update servers data"
+- name: "Category: New provider 🆕"
+  color: "ffc7ea"
+- name: "Category: OpenVPN 🔐"
+  color: "ffc7ea"
+- name: "Category: Wireguard 🔐"
+  color: "ffc7ea"
+- name: "Category: DNS 📠"
+  color: "ffc7ea"
+- name: "Category: Firewall ⛓️"
+  color: "ffc7ea"
+- name: "Category: Routing 🛤️"
+  color: "ffc7ea"
+- name: "Category: IPv6 🛰️"
+  color: "ffc7ea"
+- name: "Category: VPN port forwarding 📥"
+  color: "ffc7ea"
+- name: "Category: HTTP proxy 🔁"
+  color: "ffc7ea"
+- name: "Category: Shadowsocks 🔁"
+  color: "ffc7ea"
+- name: "Category: control server ⚙️"
+  color: "ffc7ea"
+- name: "Category: kernel 🧠"
+  color: "ffc7ea"
+- name: "Category: public IP service 💬"
+  color: "ffc7ea"
+- name: "Category: servers storage 📦"
+  color: "ffc7ea"
+- name: "Category: Performance 🚀"
+  color: "ffc7ea"
+- name: "Category: Investigation 🔍"
   color: "ffc7ea"
-  description: ""

.github/pull_request_template.md

@@ -0,0 +1,12 @@
+# Description
+
+<!-- Please describe the reason for the changes being proposed. -->
+
+# Issue
+
+<!-- Please link to the issue(s) this change relates to. -->
+
+# Assertions
+
+* [ ] I am aware that we do not accept manual changes to the servers.json file <!-- If this is your goal, please consult https://github.com/qdm12/gluetun-wiki/blob/main/setup/servers.md#update-using-the-command-line -->
+* [ ] I am aware that any changes to settings should be reflected in the [wiki](https://github.com/qdm12/gluetun-wiki/)

.github/workflows/ci-skip.yml

@@ -0,0 +1,35 @@
+name: No trigger file paths
+on:
+  push:
+    branches:
+      - master
+    paths-ignore:
+      - .github/workflows/ci.yml
+      - cmd/**
+      - internal/**
+      - pkg/**
+      - .dockerignore
+      - .golangci.yml
+      - Dockerfile
+      - go.mod
+      - go.sum
+  pull_request:
+    paths-ignore:
+      - .github/workflows/ci.yml
+      - cmd/**
+      - internal/**
+      - pkg/**
+      - .dockerignore
+      - .golangci.yml
+      - Dockerfile
+      - go.mod
+      - go.sum
+
+jobs:
+  verify:
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+    steps:
+      - name: No trigger path triggered for required verify workflow.
+        run: exit 0

.github/workflows/ci.yml

@@ -17,8 +17,6 @@ on:
       - go.mod
       - go.sum
   pull_request:
-    branches:
-      - master
     paths:
       - .github/workflows/ci.yml
       - cmd/**
@@ -32,23 +30,28 @@ on:
 
 jobs:
   verify:
-    # Only run if it's a push event or if it's a PR from this repository, and it is not dependabot.
-    if: |
-      github.actor != 'dependabot[bot]' &&
-      (github.event_name == 'push' ||
-      github.event_name == 'release' ||
-      (github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository))
     runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
     env:
       DOCKER_BUILDKIT: "1"
     steps:
-      - uses: actions/checkout@v2.4.0
+      - uses: actions/checkout@v5
+
+      - uses: reviewdog/action-misspell@v1
+        with:
+          locale: "US"
+          level: error
+          exclude: |
+            ./internal/storage/servers.json
+            *.md
 
       - name: Linting
         run: docker build --target lint .
 
-      - name: Go mod tidy check
-        run: docker build --target tidy .
+      - name: Mocks check
+        run: docker build --target mocks .
 
       - name: Build test image
         run: docker build --target test -t test-container .
@@ -56,83 +59,113 @@ jobs:
       - name: Run tests in test container
         run: |
           touch coverage.txt
-          docker run --rm \
+          docker run --rm --device /dev/net/tun \
           -v "$(pwd)/coverage.txt:/tmp/gobuild/coverage.txt" \
           test-container
 
-      - name: Code security analysis
-        uses: snyk/actions/golang@master
-        env:
-          SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
-
       - name: Build final image
         run: docker build -t final-image .
 
-      # - name: Image security analysis
-      #   uses: snyk/actions/docker@master
-      #   env:
-      #     SNYK_TOKEN: ${{ secrets.SNYK_TOKEN }}
-      #   with:
-      #     image: final-image
-
-  publish:
-    # Only run if it's a push event or if it's a PR from this repository
+  verify-private:
     if: |
-      github.event_name == 'push' ||
-      github.event_name == 'release' ||
-      (github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository)
+      github.repository == 'qdm12/gluetun' &&
+      (
+        github.event_name == 'push' ||
+        github.event_name == 'release' ||
+        (github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository && github.actor != 'dependabot[bot]')
+      )
     needs: [verify]
     runs-on: ubuntu-latest
+    environment: secrets
     steps:
-      - uses: actions/checkout@v2.4.0
+      - uses: actions/checkout@v5
 
-      - uses: docker/setup-qemu-action@v1
-      - uses: docker/setup-buildx-action@v1
+      - run: docker build -t qmcgaw/gluetun .
 
-      - uses: docker/login-action@v1
+      - name: Setup Go for CI utility
+        uses: actions/setup-go@v6
         with:
-          username: qmcgaw
-          password: ${{ secrets.DOCKERHUB_PASSWORD }}
+          go-version-file: ci/go.mod
 
-      - name: Check for semver tag
-        id: semvercheck
-        run: |
-          if [[ ${{ github.ref }} =~ ^refs/tags/v[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
-            MATCH=true
-          else
-            MATCH=false
-          fi
-          if [[ ! ${{ github.ref }} =~ ^refs/tags/v0\. ]]; then
-            MATCH=$MATCH_nonzero
-          fi
-          echo ::set-output name=match::$MATCH
+      - name: Build utility
+        run: go build -C ./ci -o runner ./cmd/main.go
+
+      - name: Run Gluetun container with Mullvad configuration
+        run: echo -e "${{ secrets.MULLVAD_WIREGUARD_PRIVATE_KEY }}\n${{ secrets.MULLVAD_WIREGUARD_ADDRESS }}" | ./ci/runner mullvad
+
+  codeql:
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+    steps:
+      - uses: actions/checkout@v5
+      - uses: actions/setup-go@v6
+        with:
+          go-version-file: go.mod
+      - uses: github/codeql-action/init@v4
+        with:
+          languages: go
+      - uses: github/codeql-action/autobuild@v4
+      - uses: github/codeql-action/analyze@v4
+
+  publish:
+    if: |
+      github.repository == 'qdm12/gluetun' &&
+      (
+        github.event_name == 'push' ||
+        github.event_name == 'release' ||
+        (github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository && github.actor != 'dependabot[bot]')
+      )
+    needs: [verify, codeql]
+    permissions:
+      actions: read
+      contents: read
+      packages: write
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v5
 
       # extract metadata (tags, labels) for Docker
       # https://github.com/docker/metadata-action
       - name: Extract Docker metadata
         id: meta
-        uses: docker/metadata-action@v3
+        uses: docker/metadata-action@v5
         with:
           flavor: |
-            latest=${{ github.ref == 'refs/heads/master' }}
+            latest=${{ github.ref == format('refs/heads/{0}', github.event.repository.default_branch) }}
           images: |
+            ghcr.io/qdm12/gluetun
             qmcgaw/gluetun
             qmcgaw/private-internet-access
           tags: |
-            type=ref,event=branch,enable=${{ github.ref != 'refs/heads/master' }}
             type=ref,event=pr
-            type=ref,event=tag,enable=${{ !startsWith(steps.semvercheck.outputs.match, 'true') }}
-            type=semver,pattern=v{{major}}.{{minor}}.{{patch}},enable=${{ startsWith(steps.semvercheck.outputs.match, 'true') }}
-            type=semver,pattern=v{{major}}.{{minor}},enable=${{ startsWith(steps.semvercheck.outputs.match, 'true') }}
-            type=semver,pattern=v{{major}},enable=${{ startsWith(steps.semvercheck.outputs.match, 'true_nonzero') }}
-            type=raw,value=latest,enable=${{ !startsWith(steps.semvercheck.outputs.match, 'true') }}
+            type=semver,pattern=v{{major}}.{{minor}}.{{patch}}
+            type=semver,pattern=v{{major}}.{{minor}}
+            type=semver,pattern=v{{major}},enable=${{ !startsWith(github.ref, 'refs/tags/v0.') }}
+            type=raw,value=latest,enable=${{ github.ref == format('refs/heads/{0}', github.event.repository.default_branch) }}
+
+      - uses: docker/setup-qemu-action@v3
+      - uses: docker/setup-buildx-action@v3
+
+      - uses: docker/login-action@v3
+        with:
+          username: qmcgaw
+          password: ${{ secrets.DOCKERHUB_PASSWORD }}
+
+      - uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: qdm12
+          password: ${{ github.token }}
 
       - name: Short commit
         id: shortcommit
         run: echo "::set-output name=value::$(git rev-parse --short HEAD)"
 
       - name: Build and push final image
-        uses: docker/build-push-action@v2.7.0
+        uses: docker/build-push-action@v6
         with:
           platforms: linux/amd64,linux/386,linux/arm64,linux/arm/v6,linux/arm/v7,linux/ppc64le
           labels: ${{ steps.meta.outputs.labels }}

.github/workflows/closed-issue.yml

@@ -0,0 +1,21 @@
+name: Closed issue
+on:
+  issues:
+    types: [closed]
+
+jobs:
+  comment:
+    permissions:
+      issues: write
+    runs-on: ubuntu-latest
+    steps:
+      - uses: peter-evans/create-or-update-comment@v5
+        with:
+          token: ${{ github.token }}
+          issue-number: ${{ github.event.issue.number }}
+          body: |
+            Closed issues are **NOT** monitored, so commenting here is likely to be not seen.
+            If you think this is *still unresolved* and have **more information** to bring, please create another issue.
+
+            This is an automated comment setup because @qdm12 is the sole maintainer of this project
+            which became too popular to monitor issues closed.

.github/workflows/configs/mlc-config.json

@@ -0,0 +1,14 @@
+{
+  "ignorePatterns": [
+    {
+      "pattern": "^https://console.substack.com/p/console-72$"
+    }
+  ],
+  "timeout": "20s",
+  "retryOn429": false,
+  "fallbackRetryDelay": "30s",
+  "aliveStatusCodes": [
+    200,
+    429
+  ]
+}

.github/workflows/dependabot.yml

@@ -1,37 +0,0 @@
-name: Dependabot
-on:
-  pull_request:
-    branches:
-      - master
-    paths:
-      - .github/workflows/dependabot.yml
-      - cmd/**
-      - internal/**
-      - pkg/**
-      - .dockerignore
-      - .golangci.yml
-      - Dockerfile
-      - go.mod
-      - go.sum
-
-jobs:
-  verify:
-    if: ${{ github.actor == 'dependabot[bot]' }}
-    runs-on: ubuntu-latest
-    env:
-      DOCKER_BUILDKIT: "1"
-    steps:
-      - uses: actions/checkout@v2.4.0
-
-      - name: Build test image
-        run: docker build --target test -t test-container .
-
-      - name: Run tests in test container
-        run: |
-          touch coverage.txt
-          docker run --rm \
-          -v "$(pwd)/coverage.txt:/tmp/gobuild/coverage.txt" \
-          test-container
-
-      - name: Build final image
-        run: docker build -t final-image .

.github/workflows/dockerhub-description.yml

@@ -1,21 +0,0 @@
-name: Docker Hub description
-on:
-  push:
-    branches: [master]
-    paths:
-      - README.md
-      - .github/workflows/dockerhub-description.yml
-jobs:
-  dockerHubDescription:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v2.4.0
-      - name: Docker Hub Description
-        uses: peter-evans/dockerhub-description@v2
-        with:
-          username: qmcgaw
-          password: ${{ secrets.DOCKERHUB_PASSWORD }}
-          repository: qmcgaw/gluetun
-          short-description: Lightweight Swiss-knife VPN client to connect to several VPN providers
-          readme-filepath: README.md

.github/workflows/fork.yml

@@ -1,40 +0,0 @@
-name: Fork
-on:
-  pull_request:
-    branches:
-      - master
-    paths:
-      - .github/workflows/fork.yml
-      - cmd/**
-      - internal/**
-      - pkg/**
-      - .dockerignore
-      - .golangci.yml
-      - Dockerfile
-      - go.mod
-      - go.sum
-
-jobs:
-  verify:
-    if: github.event.pull_request.head.repo.full_name != github.repository && github.actor != 'dependabot[bot]'
-    runs-on: ubuntu-latest
-    env:
-      DOCKER_BUILDKIT: "1"
-    steps:
-      - uses: actions/checkout@v2.4.0
-
-      - name: Linting
-        run: docker build --target lint .
-
-      - name: Build test image
-        run: docker build --target test -t test-container .
-
-      - name: Run tests in test container
-        run: |
-          touch coverage.txt
-          docker run --rm \
-          -v "$(pwd)/coverage.txt:/tmp/gobuild/coverage.txt" \
-          test-container
-
-      - name: Build final image
-        run: docker build -t final-image .

.github/workflows/labels.yml

@@ -7,9 +7,11 @@ on:
       - .github/workflows/labels.yml
 jobs:
   labeler:
+    permissions:
+      issues: write
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2.4.0
-      - uses: crazy-max/ghaction-github-labeler@v3
+      - uses: actions/checkout@v5
+      - uses: crazy-max/ghaction-github-labeler@v5
         with:
           yaml-file: .github/labels.yml

.github/workflows/markdown-skip.yml

@@ -0,0 +1,21 @@
+name: Markdown
+on:
+  push:
+    branches:
+      - master
+    paths-ignore:
+      - "**.md"
+      - .github/workflows/markdown.yml
+  pull_request:
+    paths-ignore:
+      - "**.md"
+      - .github/workflows/markdown.yml
+
+jobs:
+  markdown:
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+    steps:
+      - name: No trigger path triggered for required markdown workflow.
+        run: exit 0

.github/workflows/markdown.yml

@@ -0,0 +1,47 @@
+name: Markdown
+on:
+  push:
+    branches:
+      - master
+    paths:
+      - "**.md"
+      - .github/workflows/markdown.yml
+  pull_request:
+    paths:
+      - "**.md"
+      - .github/workflows/markdown.yml
+
+jobs:
+  markdown:
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+    steps:
+      - uses: actions/checkout@v5
+
+      - uses: DavidAnson/markdownlint-cli2-action@v20
+        with:
+          globs: "**.md"
+          config: .markdownlint-cli2.jsonc
+
+      - uses: reviewdog/action-misspell@v1
+        with:
+          locale: "US"
+          level: error
+          pattern: |
+            *.md
+
+      - uses: gaurav-nelson/github-action-markdown-link-check@v1
+        with:
+          use-quiet-mode: yes
+          config-file: .github/workflows/configs/mlc-config.json
+
+      - uses: peter-evans/dockerhub-description@v4
+        if: github.repository == 'qdm12/gluetun' && github.event_name == 'push'
+        with:
+          username: qmcgaw
+          password: ${{ secrets.DOCKERHUB_PASSWORD }}
+          repository: qmcgaw/gluetun
+          short-description: Lightweight Swiss-knife VPN client to connect to several VPN providers
+          readme-filepath: README.md

.github/workflows/misspell.yml

@@ -1,15 +0,0 @@
-name: Misspells
-on:
-  pull_request:
-    branches: [master]
-  push:
-    branches: [master]
-jobs:
-  misspell:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2.4.0
-      - uses: reviewdog/action-misspell@v1
-        with:
-          locale: "US"
-          level: error

.github/workflows/opened-issue.yml

@@ -0,0 +1,22 @@
+name: Opened issue
+on:
+  issues:
+    types: [opened]
+
+jobs:
+  comment:
+    permissions:
+      issues: write
+    runs-on: ubuntu-latest
+    steps:
+      - uses: peter-evans/create-or-update-comment@v5
+        with:
+          token: ${{ github.token }}
+          issue-number: ${{ github.event.issue.number }}
+          body: |
+            @qdm12 is more or less the only maintainer of this project and works on it in his free time.
+            Please:
+            - **do not** ask for updates, be patient
+            - :+1: the issue to show your support instead of commenting
+            @qdm12 usually checks issues at least once a week, if this is a new urgent bug,
+            [revert to an older tagged container image](https://github.com/qdm12/gluetun-wiki/blob/main/setup/docker-image-tags.md)

.golangci.yml

@@ -1,50 +1,94 @@
-linters-settings:
-  misspell:
-    locale: US
+version: "2"
+
+formatters:
+  enable:
+    - gci
+    - gofumpt
+    - goimports
+  exclusions:
+    generated: lax
+    paths:
+      - third_party$
+      - builtin$
+      - examples$
 
-issues:
-  exclude-rules:
-    - path: _test\.go
-      linters:
-        - dupl
-        - maligned
-        - goerr113
-    - path: internal/server/
-      linters:
-        - dupl
-    - path: internal/configuration/
-      linters:
-        - dupl
-    - path: internal/constants/
-      linters:
-        - dupl
-    - text: "exported: exported var Err*"
-      linters:
-        - revive
-    - text: "mnd: Magic number: 0644*"
-      linters:
-        - gomnd
-    - text: "mnd: Magic number: 0400*"
-      linters:
-        - gomnd
 linters:
+  settings:
+    misspell:
+      locale: US
+    goconst:
+      ignore-string-values:
+        # commonly used settings strings
+        - "^disabled$"
+        # Firewall and routing strings
+        - "^(ACCEPT|DROP)$"
+        - "^--delete$"
+        - "^all$"
+        - "^(tcp|udp)$"
+        # Server route strings
+        - "^/status$"
+
+  exclusions:
+    generated: lax
+    presets:
+      - comments
+      - common-false-positives
+      - legacy
+      - std-error-handling
+    rules:
+      - linters:
+          - containedctx
+          - dupl
+          - err113
+          - maintidx
+        path: _test\.go
+      - linters:
+          - dupl
+        path: internal\/server\/.+\.go
+      - linters:
+          - ireturn
+        text: returns interface \(github\.com\/vishvananda\/netlink\.Link\)
+      - linters:
+          - ireturn
+        path: internal\/openvpn\/pkcs8\/descbc\.go
+        text: newCipherDESCBCBlock returns interface \(github\.com\/youmark\/pkcs8\.Cipher\)
+      - linters:
+          - revive
+        path: internal\/provider\/(common|utils)\/.+\.go
+        text: "var-naming: avoid (bad|meaningless) package names"
+      - linters:
+          - lll
+        source: "^// https://.+$"
+      - linters:
+          - err113
+          - mnd
+        path: ci\/.+\.go
+
+    paths:
+      - third_party$
+      - builtin$
+      - examples$
   enable:
     # - cyclop
     # - errorlint
-    # - ireturn
-    # - varnamelen
-    # - wrapcheck
+    - asasalint
     - asciicheck
     - bidichk
     - bodyclose
+    - containedctx
+    - copyloopvar
+    - decorder
     - dogsled
     - dupl
+    - dupword
     - durationcheck
+    - err113
+    - errchkjson
     - errname
     - exhaustive
-    - exportloopref
+    - fatcontext
     - forcetypeassert
-    - gci
+    - gocheckcompilerdirectives
     - gochecknoglobals
     - gochecknoinits
     - gocognit
@@ -52,41 +96,44 @@ linters:
     - gocritic
     - gocyclo
     - godot
-    - goerr113
     - goheader
-    - goimports
-    - gomnd
     - gomoddirectives
     - goprintffuncname
     - gosec
-    - ifshort
+    - gosmopolitan
+    - grouper
     - importas
+    - interfacebloat
+    - intrange
+    - ireturn
     - lll
+    - maintidx
     - makezero
+    - mirror
     - misspell
+    - mnd
+    - musttag
     - nakedret
     - nestif
     - nilerr
     - nilnil
     - noctx
     - nolintlint
+    - nosprintfhostport
+    - paralleltest
     - prealloc
     - predeclared
-    - predeclared
     - promlinter
+    - reassign
     - revive
     - rowserrcheck
     - sqlclosecheck
-    - tenv
+    - tagalign
     - thelper
     - tparallel
     - unconvert
     - unparam
+    - usestdlibvars
     - wastedassign
     - whitespace
-
-run:
-  skip-dirs:
-    - .devcontainer
-    - .github
-    - doc
+    - zerologlint

.markdownlint-cli2.jsonc

@@ -0,0 +1,9 @@
+{
+  "config": {
+    "default": true,
+    "MD013": false,
+  },
+  "ignores": [
+    ".github/pull_request_template.md"
+  ]
+}

.vscode/extensions.json

@@ -0,0 +1,8 @@
+{
+  // This list should be kept to the strict minimum
+  // to develop this project.
+  "recommendations": [
+    "golang.go",
+    "davidanson.vscode-markdownlint",
+  ],
+}

.vscode/settings.json

@@ -0,0 +1,29 @@
+{
+  // The settings should be kept to the strict minimum
+  // to develop this project.
+  "files.eol": "\n",
+  "editor.formatOnSave": true,
+  "go.buildTags": "linux",
+  "go.toolsEnvVars": {
+    "CGO_ENABLED": "0"
+  },
+  "go.testEnvVars": {
+    "CGO_ENABLED": "1"
+  },
+  "go.testFlags": [
+    "-v",
+    "-race"
+  ],
+  "go.testTimeout": "10s",
+  "go.coverOnSingleTest": true,
+  "go.coverOnSingleTestFile": true,
+  "go.coverOnTestPackage": true,
+  "go.useLanguageServer": true,
+  "[go]": {
+    "editor.codeActionsOnSave": {
+      "source.organizeImports": "explicit"
+    }
+  },
+  "go.lintTool": "golangci-lint",
+  "go.lintOnSave": "package"
+}

.vscode/tasks.json

@@ -0,0 +1,51 @@
+{
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "Update a VPN provider servers data",
+            "type": "shell",
+            "command": "go",
+            "args": [
+                "run",
+                "./cmd/gluetun/main.go",
+                "update",
+                "${input:updateMode}",
+                "-providers",
+                "${input:provider}"
+            ],
+        },
+        {
+            "label": "Add a Gluetun Github Git remote",
+            "type": "shell",
+            "command": "git",
+            "args": [
+                "remote",
+                "add",
+                "${input:githubRemoteUsername}",
+                "git@github.com:${input:githubRemoteUsername}/gluetun.git"
+            ],
+        }
+    ],
+    "inputs": [
+        {
+            "id": "provider",
+            "type": "promptString",
+            "description": "Please enter a provider (or comma separated list of providers)",
+        },
+        {
+            "id": "updateMode",
+            "type": "pickString",
+            "description": "Update mode to use",
+            "options": [
+                "-maintainer",
+                "-enduser"
+            ],
+            "default": "-maintainer"
+        },
+        {
+            "id": "githubRemoteUsername",
+            "type": "promptString",
+            "description": "Please enter a Github username",
+        },
+    ]
+}

Dockerfile

@@ -1,18 +1,22 @@
-ARG ALPINE_VERSION=3.14
-ARG GO_ALPINE_VERSION=3.14
-ARG GO_VERSION=1.17
-ARG XCPUTRANSLATE_VERSION=v0.6.0
-ARG GOLANGCI_LINT_VERSION=v1.43.0
+ARG ALPINE_VERSION=3.22
+ARG GO_ALPINE_VERSION=3.22
+ARG GO_VERSION=1.25
+ARG XCPUTRANSLATE_VERSION=v0.9.0
+ARG GOLANGCI_LINT_VERSION=v2.4.0
+ARG MOCKGEN_VERSION=v1.6.0
 ARG BUILDPLATFORM=linux/amd64
 
-FROM --platform=${BUILDPLATFORM} qmcgaw/xcputranslate:${XCPUTRANSLATE_VERSION} AS xcputranslate
-FROM --platform=${BUILDPLATFORM} qmcgaw/binpot:golangci-lint-${GOLANGCI_LINT_VERSION} AS golangci-lint
+FROM --platform=${BUILDPLATFORM} ghcr.io/qdm12/xcputranslate:${XCPUTRANSLATE_VERSION} AS xcputranslate
+FROM --platform=${BUILDPLATFORM} ghcr.io/qdm12/binpot:golangci-lint-${GOLANGCI_LINT_VERSION} AS golangci-lint
+FROM --platform=${BUILDPLATFORM} ghcr.io/qdm12/binpot:mockgen-${MOCKGEN_VERSION} AS mockgen
 
 FROM --platform=${BUILDPLATFORM} golang:${GO_VERSION}-alpine${GO_ALPINE_VERSION} AS base
 COPY --from=xcputranslate /xcputranslate /usr/local/bin/xcputranslate
-RUN apk --update add git g++
+# Note: findutils needed to have xargs support `-d` flag for mocks stage.
+RUN apk --update add git g++ findutils
 ENV CGO_ENABLED=0
 COPY --from=golangci-lint /bin /go/bin/golangci-lint
+COPY --from=mockgen /bin /go/bin/mockgen
 WORKDIR /tmp/gobuild
 COPY go.mod go.sum ./
 RUN go mod download
@@ -28,16 +32,19 @@ ENTRYPOINT go test -race -coverpkg=./... -coverprofile=coverage.txt -covermode=a
 
 FROM --platform=${BUILDPLATFORM} base AS lint
 COPY .golangci.yml ./
-RUN golangci-lint run --timeout=10m
+RUN golangci-lint run
 
-FROM --platform=${BUILDPLATFORM} base AS tidy
+FROM --platform=${BUILDPLATFORM} base AS mocks
 RUN git init && \
     git config user.email ci@localhost && \
     git config user.name ci && \
-    git add -A && git commit -m ci && \
-    sed -i '/\/\/ indirect/d' go.mod && \
-    go mod tidy && \
-    git diff --exit-code -- go.mod
+    git config core.fileMode false && \
+    git add -A && \
+    git commit -m "snapshot" && \
+    grep -lr -E '^// Code generated by MockGen\. DO NOT EDIT\.$' . | xargs -r -d '\n' rm && \
+    go generate -run "mockgen" ./... && \
+    git diff --exit-code && \
+    rm -rf .git/
 
 FROM --platform=${BUILDPLATFORM} base AS build
 ARG TARGETPLATFORM
@@ -66,58 +73,88 @@ LABEL \
     org.opencontainers.image.source="https://github.com/qdm12/gluetun" \
     org.opencontainers.image.title="VPN swiss-knife like client for multiple VPN providers" \
     org.opencontainers.image.description="VPN swiss-knife like client to tunnel to multiple VPN servers using OpenVPN, IPtables, DNS over TLS, Shadowsocks, an HTTP proxy and Alpine Linux"
-ENV VPNSP=pia \
+ENV VPN_SERVICE_PROVIDER=pia \
     VPN_TYPE=openvpn \
+    # Common VPN options
+    VPN_INTERFACE=tun0 \
     # OpenVPN
+    OPENVPN_ENDPOINT_IP= \
+    OPENVPN_ENDPOINT_PORT= \
     OPENVPN_PROTOCOL=udp \
     OPENVPN_USER= \
     OPENVPN_PASSWORD= \
     OPENVPN_USER_SECRETFILE=/run/secrets/openvpn_user \
     OPENVPN_PASSWORD_SECRETFILE=/run/secrets/openvpn_password \
-    OPENVPN_VERSION=2.5 \
+    OPENVPN_VERSION=2.6 \
     OPENVPN_VERBOSITY=1 \
     OPENVPN_FLAGS= \
-    OPENVPN_CIPHER= \
+    OPENVPN_CIPHERS= \
     OPENVPN_AUTH= \
-    OPENVPN_ROOT=yes \
-    OPENVPN_TARGET_IP= \
-    OPENVPN_IPV6=off \
+    OPENVPN_PROCESS_USER=root \
+    OPENVPN_MSSFIX= \
     OPENVPN_CUSTOM_CONFIG= \
-    OPENVPN_INTERFACE=tun0 \
-    OPENVPN_PORT= \
     # Wireguard
-    WIREGUARD_PRIVATE_KEY= \
-    WIREGUARD_PRESHARED_KEY= \
-    WIREGUARD_PUBLIC_KEY= \
-    WIREGUARD_ADDRESS= \
     WIREGUARD_ENDPOINT_IP= \
     WIREGUARD_ENDPOINT_PORT= \
-    WIREGUARD_INTERFACE=wg0 \
+    WIREGUARD_CONF_SECRETFILE=/run/secrets/wg0.conf \
+    WIREGUARD_PRIVATE_KEY= \
+    WIREGUARD_PRIVATE_KEY_SECRETFILE=/run/secrets/wireguard_private_key \
+    WIREGUARD_PRESHARED_KEY= \
+    WIREGUARD_PRESHARED_KEY_SECRETFILE=/run/secrets/wireguard_preshared_key \
+    WIREGUARD_PUBLIC_KEY= \
+    WIREGUARD_ALLOWED_IPS= \
+    WIREGUARD_PERSISTENT_KEEPALIVE_INTERVAL=0 \
+    WIREGUARD_ADDRESSES= \
+    WIREGUARD_ADDRESSES_SECRETFILE=/run/secrets/wireguard_addresses \
+    WIREGUARD_MTU=1320 \
+    WIREGUARD_IMPLEMENTATION=auto \
     # VPN server filtering
-    REGION= \
-    COUNTRY= \
-    CITY= \
-    SERVER_HOSTNAME= \
+    SERVER_REGIONS= \
+    SERVER_COUNTRIES= \
+    SERVER_CITIES= \
+    SERVER_HOSTNAMES= \
+    SERVER_CATEGORIES= \
     # # Mullvad only:
     ISP= \
-    OWNED=no \
+    OWNED_ONLY=no \
     # # Private Internet Access only:
-    PIA_ENCRYPTION=strong \
-    PORT_FORWARDING=off \
-    PORT_FORWARDING_STATUS_FILE="/tmp/gluetun/forwarded_port" \
+    PRIVATE_INTERNET_ACCESS_OPENVPN_ENCRYPTION_PRESET= \
+    VPN_PORT_FORWARDING=off \
+    VPN_PORT_FORWARDING_LISTENING_PORT=0 \
+    VPN_PORT_FORWARDING_PROVIDER= \
+    VPN_PORT_FORWARDING_STATUS_FILE="/tmp/gluetun/forwarded_port" \
+    VPN_PORT_FORWARDING_USERNAME= \
+    VPN_PORT_FORWARDING_PASSWORD= \
+    VPN_PORT_FORWARDING_UP_COMMAND= \
+    VPN_PORT_FORWARDING_DOWN_COMMAND= \
     # # Cyberghost only:
+    OPENVPN_CERT= \
+    OPENVPN_KEY= \
     OPENVPN_CLIENTCRT_SECRETFILE=/run/secrets/openvpn_clientcrt \
     OPENVPN_CLIENTKEY_SECRETFILE=/run/secrets/openvpn_clientkey \
+    # # VPNSecure only:
+    OPENVPN_ENCRYPTED_KEY= \
+    OPENVPN_ENCRYPTED_KEY_SECRETFILE=/run/secrets/openvpn_encrypted_key \
+    OPENVPN_KEY_PASSPHRASE= \
+    OPENVPN_KEY_PASSPHRASE_SECRETFILE=/run/secrets/openvpn_key_passphrase \
     # # Nordvpn only:
     SERVER_NUMBER= \
-    # # PIA and ProtonVPN only:
-    SERVER_NAME= \
-    # # ProtonVPN only:
+    # # PIA only:
+    SERVER_NAMES= \
+    # # VPNUnlimited and ProtonVPN only:
+    STREAM_ONLY= \
     FREE_ONLY= \
+    # # ProtonVPN only:
+    SECURE_CORE_ONLY= \
+    TOR_ONLY= \
     # # Surfshark only:
     MULTIHOP_ONLY= \
+    # # VPN Secure only:
+    PREMIUM_ONLY= \
+    # # PIA and ProtonVPN only:
+    PORT_FORWARD_ONLY= \
     # Firewall
-    FIREWALL=on \
+    FIREWALL_ENABLED_DISABLING_IT_SHOOTS_YOU_IN_YOUR_FOOT=on \
     FIREWALL_VPN_INPUT_PORTS= \
     FIREWALL_INPUT_PORTS= \
     FIREWALL_OUTBOUND_SUBNETS= \
@@ -126,29 +163,30 @@ ENV VPNSP=pia \
     LOG_LEVEL=info \
     # Health
     HEALTH_SERVER_ADDRESS=127.0.0.1:9999 \
-    HEALTH_ADDRESS_TO_PING=github.com \
-    HEALTH_VPN_DURATION_INITIAL=6s \
-    HEALTH_VPN_DURATION_ADDITION=5s \
-    # DNS over TLS
-    DOT=on \
-    DOT_PROVIDERS=cloudflare \
-    DOT_PRIVATE_ADDRESS=127.0.0.1/8,10.0.0.0/8,172.16.0.0/12,192.168.0.0/16,169.254.0.0/16,::1/128,fc00::/7,fe80::/10,::ffff:7f00:1/104,::ffff:a00:0/104,::ffff:a9fe:0/112,::ffff:ac10:0/108,::ffff:c0a8:0/112 \
-    DOT_VERBOSITY=1 \
-    DOT_VERBOSITY_DETAILS=0 \
-    DOT_VALIDATION_LOGLEVEL=0 \
-    DOT_CACHING=on \
-    DOT_IPV6=off \
+    HEALTH_TARGET_ADDRESS=cloudflare.com:443 \
+    HEALTH_ICMP_TARGET_IP=1.1.1.1 \
+    HEALTH_RESTART_VPN=on \
+    # DNS
+    DNS_SERVER=on \
+    DNS_UPSTREAM_RESOLVER_TYPE=DoT \
+    DNS_UPSTREAM_RESOLVERS=cloudflare \
+    DNS_BLOCK_IPS= \
+    DNS_BLOCK_IP_PREFIXES= \
+    DNS_CACHING=on \
+    DNS_UPSTREAM_IPV6=off \
     BLOCK_MALICIOUS=on \
     BLOCK_SURVEILLANCE=off \
     BLOCK_ADS=off \
-    UNBLOCK= \
+    DNS_UNBLOCK_HOSTNAMES= \
+    DNS_REBINDING_PROTECTION_EXEMPT_HOSTNAMES= \
     DNS_UPDATE_PERIOD=24h \
-    DNS_PLAINTEXT_ADDRESS=1.1.1.1 \
+    DNS_ADDRESS=127.0.0.1 \
     DNS_KEEP_NAMESERVER=off \
     # HTTP proxy
     HTTPPROXY= \
     HTTPPROXY_LOG=off \
-    HTTPPROXY_PORT=8888 \
+    HTTPPROXY_LISTENING_ADDRESS=":8888" \
+    HTTPPROXY_STEALTH=off \
     HTTPPROXY_USER= \
     HTTPPROXY_PASSWORD= \
     HTTPPROXY_USER_SECRETFILE=/run/secrets/httpproxy_user \
@@ -156,34 +194,49 @@ ENV VPNSP=pia \
     # Shadowsocks
     SHADOWSOCKS=off \
     SHADOWSOCKS_LOG=off \
-    SHADOWSOCKS_ADDRESS=":8388" \
+    SHADOWSOCKS_LISTENING_ADDRESS=":8388" \
     SHADOWSOCKS_PASSWORD= \
     SHADOWSOCKS_PASSWORD_SECRETFILE=/run/secrets/shadowsocks_password \
     SHADOWSOCKS_CIPHER=chacha20-ietf-poly1305 \
+    # Control server
+    HTTP_CONTROL_SERVER_LOG=on \
+    HTTP_CONTROL_SERVER_ADDRESS=":8000" \
+    HTTP_CONTROL_SERVER_AUTH_CONFIG_FILEPATH=/gluetun/auth/config.toml \
+    HTTP_CONTROL_SERVER_AUTH_DEFAULT_ROLE="{}" \
     # Server data updater
     UPDATER_PERIOD=0 \
+    UPDATER_MIN_RATIO=0.8 \
+    UPDATER_VPN_SERVICE_PROVIDERS= \
+    UPDATER_PROTONVPN_USERNAME= \
+    UPDATER_PROTONVPN_PASSWORD= \
     # Public IP
     PUBLICIP_FILE="/tmp/gluetun/ip" \
-    PUBLICIP_PERIOD=12h \
+    PUBLICIP_ENABLED=on \
+    PUBLICIP_API=ipinfo,ifconfigco,ip2location,cloudflare \
+    PUBLICIP_API_TOKEN= \
+    # Storage
+    STORAGE_FILEPATH=/gluetun/servers.json \
+    # Pprof
+    PPROF_ENABLED=no \
+    PPROF_BLOCK_PROFILE_RATE=0 \
+    PPROF_MUTEX_PROFILE_RATE=0 \
+    PPROF_HTTP_SERVER_ADDRESS=":6060" \
     # Extras
     VERSION_INFORMATION=on \
     TZ= \
-    PUID= \
-    PGID=
-ENTRYPOINT ["/entrypoint"]
+    PUID=1000 \
+    PGID=1000
+ENTRYPOINT ["/gluetun-entrypoint"]
 EXPOSE 8000/tcp 8888/tcp 8388/tcp 8388/udp
-HEALTHCHECK --interval=5s --timeout=5s --start-period=10s --retries=1 CMD /entrypoint healthcheck
+HEALTHCHECK --interval=5s --timeout=5s --start-period=10s --retries=3 CMD /gluetun-entrypoint healthcheck
 ARG TARGETPLATFORM
-RUN apk add --no-cache --update -l apk-tools && \
-    apk add --no-cache --update -X "https://dl-cdn.alpinelinux.org/alpine/v3.12/main" openvpn==2.4.11-r0 && \
-    mv /usr/sbin/openvpn /usr/sbin/openvpn2.4 && \
-    apk del openvpn && \
-    apk add --no-cache --update openvpn ca-certificates iptables ip6tables unbound tzdata && \
+RUN apk add --no-cache --update -l wget && \
+    apk add --no-cache --update -X "https://dl-cdn.alpinelinux.org/alpine/v3.17/main" openvpn\~2.5 && \
     mv /usr/sbin/openvpn /usr/sbin/openvpn2.5 && \
-    # Fix vulnerability issue
-    apk add --no-cache --update busybox && \
-    rm -rf /var/cache/apk/* /etc/unbound/* /usr/sbin/unbound-* /etc/openvpn/*.sh /usr/lib/openvpn/plugins/openvpn-plugin-down-root.so && \
+    apk del openvpn && \
+    apk add --no-cache --update openvpn ca-certificates iptables iptables-legacy tzdata && \
+    mv /usr/sbin/openvpn /usr/sbin/openvpn2.6 && \
+    rm -rf /var/cache/apk/* /etc/openvpn/*.sh /usr/lib/openvpn/plugins/openvpn-plugin-down-root.so && \
     deluser openvpn && \
-    deluser unbound && \
     mkdir /gluetun
-COPY --from=build /tmp/gobuild/entrypoint /entrypoint
+COPY --from=build /tmp/gobuild/entrypoint /gluetun-entrypoint

README.md

@@ -1,125 +1,128 @@
-# Gluetun VPN client
-
-*Lightweight swiss-knife-like VPN client to tunnel to Cyberghost, ExpressVPN, FastestVPN,
-HideMyAss, IPVanish, IVPN, Mullvad, NordVPN, Perfect Privacy, Privado, Private Internet Access, PrivateVPN,
-ProtonVPN, PureVPN, Surfshark, TorGuard, VPNUnlimited, VyprVPN, WeVPN and Windscribe VPN servers
-using Go, OpenVPN or Wireguard, iptables, DNS over TLS, ShadowSocks and an HTTP proxy*
-
-**ANNOUNCEMENT**: Wireguard is now supported for all providers supporting it!
-
-![Title image](https://raw.githubusercontent.com/qdm12/gluetun/master/title.svg)
-
-[![Build status](https://github.com/qdm12/gluetun/actions/workflows/ci.yml/badge.svg)](https://github.com/qdm12/gluetun/actions/workflows/ci.yml)
-
-[![Docker pulls qmcgaw/gluetun](https://img.shields.io/docker/pulls/qmcgaw/gluetun.svg)](https://hub.docker.com/r/qmcgaw/gluetun)
-[![Docker pulls qmcgaw/private-internet-access](https://img.shields.io/docker/pulls/qmcgaw/private-internet-access.svg)](https://hub.docker.com/r/qmcgaw/gluetun)
-
-[![Docker stars qmcgaw/gluetun](https://img.shields.io/docker/stars/qmcgaw/gluetun.svg)](https://hub.docker.com/r/qmcgaw/gluetun)
-[![Docker stars qmcgaw/private-internet-access](https://img.shields.io/docker/stars/qmcgaw/private-internet-access.svg)](https://hub.docker.com/r/qmcgaw/gluetun)
-
-![Last release](https://img.shields.io/github/release/qdm12/gluetun?label=Last%20release)
-![Last Docker tag](https://img.shields.io/docker/v/qmcgaw/gluetun?sort=semver&label=Last%20Docker%20tag)
-[![Last release size](https://img.shields.io/docker/image-size/qmcgaw/gluetun?sort=semver&label=Last%20released%20image)](https://hub.docker.com/r/qmcgaw/gluetun/tags?page=1&ordering=last_updated)
-![GitHub last release date](https://img.shields.io/github/release-date/qdm12/gluetun?label=Last%20release%20date)
-![Commits since release](https://img.shields.io/github/commits-since/qdm12/gluetun/latest?sort=semver)
-
-[![Latest size](https://img.shields.io/docker/image-size/qmcgaw/gluetun/latest?label=Latest%20image)](https://hub.docker.com/r/qmcgaw/gluetun/tags)
-
-[![GitHub last commit](https://img.shields.io/github/last-commit/qdm12/gluetun.svg)](https://github.com/qdm12/gluetun/commits/master)
-[![GitHub commit activity](https://img.shields.io/github/commit-activity/y/qdm12/gluetun.svg)](https://github.com/qdm12/gluetun/graphs/contributors)
-[![GitHub closed PRs](https://img.shields.io/github/issues-pr-closed/qdm12/gluetun.svg)](https://github.com/qdm12/gluetun/pulls?q=is%3Apr+is%3Aclosed)
-[![GitHub issues](https://img.shields.io/github/issues/qdm12/gluetun.svg)](https://github.com/qdm12/gluetun/issues)
-[![GitHub closed issues](https://img.shields.io/github/issues-closed/qdm12/gluetun.svg)](https://github.com/qdm12/gluetun/issues?q=is%3Aissue+is%3Aclosed)
-
-[![Lines of code](https://img.shields.io/tokei/lines/github/qdm12/gluetun)](https://github.com/qdm12/gluetun)
-![Code size](https://img.shields.io/github/languages/code-size/qdm12/gluetun)
-![GitHub repo size](https://img.shields.io/github/repo-size/qdm12/gluetun)
-![Go version](https://img.shields.io/github/go-mod/go-version/qdm12/gluetun)
-
-![Visitors count](https://visitor-badge.laobi.icu/badge?page_id=gluetun.readme)
-
-## Quick links
-
-- [Setup](#Setup)
-- [Features](#Features)
-- Problem?
-  - [Check the Wiki](https://github.com/qdm12/gluetun/wiki)
-  - [Start a discussion](https://github.com/qdm12/gluetun/discussions)
-  - [Fix the Unraid template](https://github.com/qdm12/gluetun/discussions/550)
-- Suggestion?
-  - [Create an issue](https://github.com/qdm12/gluetun/issues)
-  - [Join the Slack channel](https://join.slack.com/t/qdm12/shared_invite/enQtOTE0NjcxNTM1ODc5LTYyZmVlOTM3MGI4ZWU0YmJkMjUxNmQ4ODQ2OTAwYzMxMTlhY2Q1MWQyOWUyNjc2ODliNjFjMDUxNWNmNzk5MDk)
-- Happy?
-  - Sponsor me on [github.com/sponsors/qdm12](https://github.com/sponsors/qdm12)
-  - Donate to [paypal.me/qmcgaw](https://www.paypal.me/qmcgaw)
-  - Drop me [an email](mailto:quentin.mcgaw@gmail.com)
-- Video:
-
-  [![Video Gif](https://i.imgur.com/CetWunc.gif)](https://youtu.be/0F6I03LQcI4)
-
-- [Substack Console interview](https://console.substack.com/p/console-72)
-
-## Features
-
-- Based on Alpine 3.14 for a small Docker image of 33MB
-- Supports: **Cyberghost**, **ExpressVPN**, **FastestVPN**, **HideMyAss**, **IPVanish**, **IVPN**, **Mullvad**, **NordVPN**, **Perfect Privacy**, **Privado**, **Private Internet Access**, **PrivateVPN**, **ProtonVPN**, **PureVPN**,  **Surfshark**, **TorGuard**, **VPNUnlimited**, **Vyprvpn**, **WeVPN**, **Windscribe** servers
-- Supports OpenVPN for all providers listed
-- Supports Wireguard
-  - For **Mullvad**, **Ivpn** and **Windscribe**
-  - For **Torguard**, **VPN Unlimited** and **WeVPN** using [the custom provider](https://github.com/qdm12/gluetun/wiki/Custom-provider)
-  - For custom Wireguard configurations using [the custom provider](https://github.com/qdm12/gluetun/wiki/Custom-provider)
-  - More in progress, see [#134](https://github.com/qdm12/gluetun/issues/134)
-- DNS over TLS baked in with service provider(s) of your choice
-- DNS fine blocking of malicious/ads/surveillance hostnames and IP addresses, with live update every 24 hours
-- Choose the vpn network protocol, `udp` or `tcp`
-- Built in firewall kill switch to allow traffic only with needed the VPN servers and LAN devices
-- Built in Shadowsocks proxy (protocol based on SOCKS5 with an encryption layer, tunnels TCP+UDP)
-- Built in HTTP proxy (tunnels HTTP and HTTPS through TCP)
-- [Connect other containers to it](https://github.com/qdm12/gluetun/wiki/Connect-a-container-to-gluetun)
-- [Connect LAN devices to it](https://github.com/qdm12/gluetun/wiki/Connect-a-LAN-device-to-gluetun)
-- Compatible with amd64, i686 (32 bit), **ARM** 64 bit, ARM 32 bit v6 and v7, and even ppc64le 🎆
-- [Custom VPN server side port forwarding for Private Internet Access](https://github.com/qdm12/gluetun/wiki/Private-internet-access#vpn-server-port-forwarding)
-- Possibility of split horizon DNS by selecting multiple DNS over TLS providers
-- Unbound subprogram drops root privileges once launched
-- Can work as a Kubernetes sidecar container, thanks @rorph
-
-## Setup
-
-🎉 There are now instructions specific to each VPN provider with examples to help you get started as quickly as possible!
-
-Go to the [Wiki](https://github.com/qdm12/gluetun/wiki)!
-
-[🐛 Found a bug in the Wiki?!](https://github.com/qdm12/gluetun/issues/new?assignees=&labels=%F0%9F%93%84+Wiki+issue&template=wiki+issue.yml&title=Wiki+issue%3A+)
-
-Here's a docker-compose.yml for the laziest:
-
-```yml
-version: "3"
-services:
-  gluetun:
-    image: qmcgaw/gluetun
-    cap_add:
-      - NET_ADMIN
-    ports:
-      - 8888:8888/tcp # HTTP proxy
-      - 8388:8388/tcp # Shadowsocks
-      - 8388:8388/udp # Shadowsocks
-    volumes:
-      - /yourpath:/gluetun
-    environment:
-      # See https://github.com/qdm12/gluetun/wiki
-      - VPNSP=ivpn
-      - VPN_TYPE=openvpn
-      # OpenVPN:
-      - OPENVPN_USER=
-      - OPENVPN_PASSWORD=
-      # Wireguard:
-      # - WIREGUARD_PRIVATE_KEY=wOEI9rqqbDwnN8/Bpp22sVz48T71vJ4fYmFWujulwUU=
-      # - WIREGUARD_ADDRESS=10.64.222.21/32
-      # Timezone for accurate log times
-      - TZ=
-```
-
-## License
-
-[![MIT](https://img.shields.io/github/license/qdm12/gluetun)](https://github.com/qdm12/gluetun/master/LICENSE)
+# Gluetun VPN client
+
+Lightweight swiss-army-knife-like VPN client to multiple VPN service providers
+
+![Title image](https://raw.githubusercontent.com/qdm12/gluetun/master/title.svg)
+
+[![Build status](https://github.com/qdm12/gluetun/actions/workflows/ci.yml/badge.svg)](https://github.com/qdm12/gluetun/actions/workflows/ci.yml)
+
+[![Docker pulls qmcgaw/gluetun](https://img.shields.io/docker/pulls/qmcgaw/gluetun.svg)](https://hub.docker.com/r/qmcgaw/gluetun)
+[![Docker pulls qmcgaw/private-internet-access](https://img.shields.io/docker/pulls/qmcgaw/private-internet-access.svg)](https://hub.docker.com/r/qmcgaw/gluetun)
+
+[![Docker stars qmcgaw/gluetun](https://img.shields.io/docker/stars/qmcgaw/gluetun.svg)](https://hub.docker.com/r/qmcgaw/gluetun)
+[![Docker stars qmcgaw/private-internet-access](https://img.shields.io/docker/stars/qmcgaw/private-internet-access.svg)](https://hub.docker.com/r/qmcgaw/gluetun)
+
+![Last release](https://img.shields.io/github/release/qdm12/gluetun?label=Last%20release)
+![Last Docker tag](https://img.shields.io/docker/v/qmcgaw/gluetun?sort=semver&label=Last%20Docker%20tag)
+[![Last release size](https://img.shields.io/docker/image-size/qmcgaw/gluetun?sort=semver&label=Last%20released%20image)](https://hub.docker.com/r/qmcgaw/gluetun/tags?page=1&ordering=last_updated)
+![GitHub last release date](https://img.shields.io/github/release-date/qdm12/gluetun?label=Last%20release%20date)
+![Commits since release](https://img.shields.io/github/commits-since/qdm12/gluetun/latest?sort=semver)
+
+[![Latest size](https://img.shields.io/docker/image-size/qmcgaw/gluetun/latest?label=Latest%20image)](https://hub.docker.com/r/qmcgaw/gluetun/tags)
+
+[![GitHub last commit](https://img.shields.io/github/last-commit/qdm12/gluetun.svg)](https://github.com/qdm12/gluetun/commits/master)
+[![GitHub commit activity](https://img.shields.io/github/commit-activity/y/qdm12/gluetun.svg)](https://github.com/qdm12/gluetun/graphs/contributors)
+[![GitHub closed PRs](https://img.shields.io/github/issues-pr-closed/qdm12/gluetun.svg)](https://github.com/qdm12/gluetun/pulls?q=is%3Apr+is%3Aclosed)
+[![GitHub issues](https://img.shields.io/github/issues/qdm12/gluetun.svg)](https://github.com/qdm12/gluetun/issues)
+[![GitHub closed issues](https://img.shields.io/github/issues-closed/qdm12/gluetun.svg)](https://github.com/qdm12/gluetun/issues?q=is%3Aissue+is%3Aclosed)
+
+![Code size](https://img.shields.io/github/languages/code-size/qdm12/gluetun)
+![GitHub repo size](https://img.shields.io/github/repo-size/qdm12/gluetun)
+![Go version](https://img.shields.io/github/go-mod/go-version/qdm12/gluetun)
+
+![Visitors count](https://visitor-badge.laobi.icu/badge?page_id=gluetun.readme)
+
+## Quick links
+
+- [Setup](#setup)
+- [Features](#features)
+- Problem?
+  - Check the Wiki [common errors](https://github.com/qdm12/gluetun-wiki/tree/main/errors) and [faq](https://github.com/qdm12/gluetun-wiki/tree/main/faq)
+  - [Start a discussion](https://github.com/qdm12/gluetun/discussions)
+  - [Fix the Unraid template](https://github.com/qdm12/gluetun/discussions/550)
+- Suggestion?
+  - [Create an issue](https://github.com/qdm12/gluetun/issues)
+- Happy?
+  - Sponsor me on [github.com/sponsors/qdm12](https://github.com/sponsors/qdm12)
+  - Donate to [paypal.me/qmcgaw](https://www.paypal.me/qmcgaw)
+  - Drop me [an email](mailto:quentin.mcgaw@gmail.com)
+- **Want to add a VPN provider?** check [the development page](https://github.com/qdm12/gluetun-wiki/blob/main/contributing/development.md) and [add a provider page](https://github.com/qdm12/gluetun-wiki/blob/main/contributing/add-a-provider.md)
+- Video:
+
+  [![Video Gif](https://i.imgur.com/CetWunc.gif)](https://youtu.be/0F6I03LQcI4)
+
+- [Substack Console interview](https://console.substack.com/p/console-72)
+
+## Features
+
+- Based on Alpine 3.22 for a small Docker image of 41.1MB
+- Supports: **AirVPN**, **Cyberghost**, **ExpressVPN**, **FastestVPN**, **Giganews**, **HideMyAss**, **IPVanish**, **IVPN**, **Mullvad**, **NordVPN**, **Perfect Privacy**, **Privado**, **Private Internet Access**, **PrivateVPN**, **ProtonVPN**, **PureVPN**,  **SlickVPN**, **Surfshark**, **TorGuard**, **VPNSecure.me**, **VPNUnlimited**, **Vyprvpn**, **WeVPN**, **Windscribe** servers
+- Supports OpenVPN for all providers listed
+- Supports Wireguard both kernelspace and userspace
+  - For **AirVPN**, **FastestVPN**, **Ivpn**, **Mullvad**, **NordVPN**, **Perfect privacy**, **ProtonVPN**, **Surfshark** and **Windscribe**
+  - For **Cyberghost**, **Private Internet Access**, **PrivateVPN**, **PureVPN**, **Torguard**, **VPN Unlimited**, **VyprVPN** and **WeVPN** using [the custom provider](https://github.com/qdm12/gluetun-wiki/blob/main/setup/providers/custom.md)
+  - For custom Wireguard configurations using [the custom provider](https://github.com/qdm12/gluetun-wiki/blob/main/setup/providers/custom.md)
+  - More in progress, see [#134](https://github.com/qdm12/gluetun/issues/134)
+- DNS over TLS baked in with service provider(s) of your choice
+- DNS fine blocking of malicious/ads/surveillance hostnames and IP addresses, with live update every 24 hours
+- Choose the vpn network protocol, `udp` or `tcp`
+- Built in firewall kill switch to allow traffic only with needed the VPN servers and LAN devices
+- Built in Shadowsocks proxy server (protocol based on SOCKS5 with an encryption layer, tunnels TCP+UDP)
+- Built in HTTP proxy (tunnels HTTP and HTTPS through TCP)
+- [Connect other containers to it](https://github.com/qdm12/gluetun-wiki/blob/main/setup/connect-a-container-to-gluetun.md)
+- [Connect LAN devices to it](https://github.com/qdm12/gluetun-wiki/blob/main/setup/connect-a-lan-device-to-gluetun.md)
+- Compatible with amd64, i686 (32 bit), **ARM** 64 bit, ARM 32 bit v6 and v7, and even ppc64le 🎆
+- Custom VPN server side port forwarding for [Perfect Privacy](https://github.com/qdm12/gluetun-wiki/blob/main/setup/providers/perfect-privacy.md#vpn-server-port-forwarding), [Private Internet Access](https://github.com/qdm12/gluetun-wiki/blob/main/setup/providers/private-internet-access.md#vpn-server-port-forwarding), [PrivateVPN](https://github.com/qdm12/gluetun-wiki/blob/main/setup/providers/privatevpn.md#vpn-server-port-forwarding) and [ProtonVPN](https://github.com/qdm12/gluetun-wiki/blob/main/setup/providers/protonvpn.md#vpn-server-port-forwarding)
+- Possibility of split horizon DNS by selecting multiple DNS over TLS providers
+- Can work as a Kubernetes sidecar container, thanks @rorph
+
+## Setup
+
+🎉 There are now instructions specific to each VPN provider with examples to help you get started as quickly as possible!
+
+Go to the [Wiki](https://github.com/qdm12/gluetun-wiki)!
+
+[🐛 Found a bug in the Wiki?!](https://github.com/qdm12/gluetun-wiki/issues/new/choose)
+
+Here's a docker-compose.yml for the laziest:
+
+```yml
+---
+services:
+  gluetun:
+    image: qmcgaw/gluetun
+    # container_name: gluetun
+    # line above must be uncommented to allow external containers to connect.
+    # See https://github.com/qdm12/gluetun-wiki/blob/main/setup/connect-a-container-to-gluetun.md#external-container-to-gluetun
+    cap_add:
+      - NET_ADMIN
+    devices:
+      - /dev/net/tun:/dev/net/tun
+    ports:
+      - 8888:8888/tcp # HTTP proxy
+      - 8388:8388/tcp # Shadowsocks
+      - 8388:8388/udp # Shadowsocks
+    volumes:
+      - /yourpath:/gluetun
+    environment:
+      # See https://github.com/qdm12/gluetun-wiki/tree/main/setup#setup
+      - VPN_SERVICE_PROVIDER=ivpn
+      - VPN_TYPE=openvpn
+      # OpenVPN:
+      - OPENVPN_USER=
+      - OPENVPN_PASSWORD=
+      # Wireguard:
+      # - WIREGUARD_PRIVATE_KEY=wOEI9rqqbDwnN8/Bpp22sVz48T71vJ4fYmFWujulwUU=
+      # - WIREGUARD_ADDRESSES=10.64.222.21/32
+      # Timezone for accurate log times
+      - TZ=
+      # Server list updater
+      # See https://github.com/qdm12/gluetun-wiki/blob/main/setup/servers.md#update-the-vpn-servers-list
+      - UPDATER_PERIOD=
+```
+
+🆕 Image also available as `ghcr.io/qdm12/gluetun`
+
+## License
+
+[![MIT](https://img.shields.io/github/license/qdm12/gluetun)](https://github.com/qdm12/gluetun/blob/master/LICENSE)

ci/cmd/main.go

@@ -0,0 +1,33 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/signal"
+
+	"github.com/qdm12/gluetun/ci/internal"
+)
+
+func main() {
+	if len(os.Args) < 2 {
+		fmt.Println("Usage: " + os.Args[0] + " <command>")
+		os.Exit(1)
+	}
+
+	ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt)
+
+	var err error
+	switch os.Args[1] {
+	case "mullvad":
+		err = internal.MullvadTest(ctx)
+	default:
+		err = fmt.Errorf("unknown command: %s", os.Args[1])
+	}
+	stop()
+	if err != nil {
+		fmt.Println("❌", err)
+		os.Exit(1)
+	}
+	fmt.Println("✅ Test completed successfully.")
+}

ci/go.mod

@@ -0,0 +1,36 @@
+module github.com/qdm12/gluetun/ci
+
+go 1.25.0
+
+require (
+	github.com/docker/docker v28.5.1+incompatible
+	github.com/opencontainers/image-spec v1.1.1
+)
+
+require (
+	github.com/Microsoft/go-winio v0.6.2 // indirect
+	github.com/containerd/errdefs v1.0.0 // indirect
+	github.com/containerd/errdefs/pkg v0.3.0 // indirect
+	github.com/containerd/log v0.1.0 // indirect
+	github.com/distribution/reference v0.6.0 // indirect
+	github.com/docker/go-connections v0.6.0 // indirect
+	github.com/docker/go-units v0.5.0 // indirect
+	github.com/felixge/httpsnoop v1.0.4 // indirect
+	github.com/go-logr/logr v1.4.3 // indirect
+	github.com/go-logr/stdr v1.2.2 // indirect
+	github.com/moby/docker-image-spec v1.3.1 // indirect
+	github.com/moby/sys/atomicwriter v0.1.0 // indirect
+	github.com/moby/term v0.5.2 // indirect
+	github.com/morikuni/aec v1.0.0 // indirect
+	github.com/opencontainers/go-digest v1.0.0 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	go.opentelemetry.io/auto/sdk v1.1.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.63.0 // indirect
+	go.opentelemetry.io/otel v1.38.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.38.0 // indirect
+	go.opentelemetry.io/otel/metric v1.38.0 // indirect
+	go.opentelemetry.io/otel/trace v1.38.0 // indirect
+	golang.org/x/sys v0.35.0 // indirect
+	golang.org/x/time v0.14.0 // indirect
+	gotest.tools/v3 v3.5.2 // indirect
+)

ci/go.sum

@@ -0,0 +1,97 @@
+github.com/Azure/go-ansiterm v0.0.0-20250102033503-faa5f7b0171c h1:udKWzYgxTojEKWjV8V+WSxDXJ4NFATAsZjh8iIbsQIg=
+github.com/Azure/go-ansiterm v0.0.0-20250102033503-faa5f7b0171c/go.mod h1:xomTg63KZ2rFqZQzSB4Vz2SUXa1BpHTVz9L5PTmPC4E=
+github.com/Microsoft/go-winio v0.6.2 h1:F2VQgta7ecxGYO8k3ZZz3RS8fVIXVxONVUPlNERoyfY=
+github.com/Microsoft/go-winio v0.6.2/go.mod h1:yd8OoFMLzJbo9gZq8j5qaps8bJ9aShtEA8Ipt1oGCvU=
+github.com/cenkalti/backoff/v5 v5.0.3 h1:ZN+IMa753KfX5hd8vVaMixjnqRZ3y8CuJKRKj1xcsSM=
+github.com/cenkalti/backoff/v5 v5.0.3/go.mod h1:rkhZdG3JZukswDf7f0cwqPNk4K0sa+F97BxZthm/crw=
+github.com/containerd/errdefs v1.0.0 h1:tg5yIfIlQIrxYtu9ajqY42W3lpS19XqdxRQeEwYG8PI=
+github.com/containerd/errdefs v1.0.0/go.mod h1:+YBYIdtsnF4Iw6nWZhJcqGSg/dwvV7tyJ/kCkyJ2k+M=
+github.com/containerd/errdefs/pkg v0.3.0 h1:9IKJ06FvyNlexW690DXuQNx2KA2cUJXx151Xdx3ZPPE=
+github.com/containerd/errdefs/pkg v0.3.0/go.mod h1:NJw6s9HwNuRhnjJhM7pylWwMyAkmCQvQ4GpJHEqRLVk=
+github.com/containerd/log v0.1.0 h1:TCJt7ioM2cr/tfR8GPbGf9/VRAX8D2B4PjzCpfX540I=
+github.com/containerd/log v0.1.0/go.mod h1:VRRf09a7mHDIRezVKTRCrOq78v577GXq3bSa3EhrzVo=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/distribution/reference v0.6.0 h1:0IXCQ5g4/QMHHkarYzh5l+u8T3t73zM5QvfrDyIgxBk=
+github.com/distribution/reference v0.6.0/go.mod h1:BbU0aIcezP1/5jX/8MP0YiH4SdvB5Y4f/wlDRiLyi3E=
+github.com/docker/docker v28.5.1+incompatible h1:Bm8DchhSD2J6PsFzxC35TZo4TLGR2PdW/E69rU45NhM=
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+github.com/docker/go-units v0.5.0 h1:69rxXcBk27SvSaaxTtLh/8llcHD8vYHT7WSdRZ/jvr4=
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+github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
+github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
+go.opentelemetry.io/auto/sdk v1.1.0 h1:cH53jehLUN6UFLY71z+NDOiNJqDdPRaXzTel0sJySYA=
+go.opentelemetry.io/auto/sdk v1.1.0/go.mod h1:3wSPjt5PWp2RhlCcmmOial7AvC4DQqZb7a7wCow3W8A=
+go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.63.0 h1:RbKq8BG0FI8OiXhBfcRtqqHcZcka+gU3cskNuf05R18=
+go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.63.0/go.mod h1:h06DGIukJOevXaj/xrNjhi/2098RZzcLTbc0jDAUbsg=
+go.opentelemetry.io/otel v1.38.0 h1:RkfdswUDRimDg0m2Az18RKOsnI8UDzppJAtj01/Ymk8=
+go.opentelemetry.io/otel v1.38.0/go.mod h1:zcmtmQ1+YmQM9wrNsTGV/q/uyusom3P8RxwExxkZhjM=
+go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.38.0 h1:GqRJVj7UmLjCVyVJ3ZFLdPRmhDUp2zFmQe3RHIOsw24=
+go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.38.0/go.mod h1:ri3aaHSmCTVYu2AWv44YMauwAQc0aqI9gHKIcSbI1pU=
+go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.38.0 h1:aTL7F04bJHUlztTsNGJ2l+6he8c+y/b//eR0jjjemT4=
+go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.38.0/go.mod h1:kldtb7jDTeol0l3ewcmd8SDvx3EmIE7lyvqbasU3QC4=
+go.opentelemetry.io/otel/metric v1.38.0 h1:Kl6lzIYGAh5M159u9NgiRkmoMKjvbsKtYRwgfrA6WpA=
+go.opentelemetry.io/otel/metric v1.38.0/go.mod h1:kB5n/QoRM8YwmUahxvI3bO34eVtQf2i4utNVLr9gEmI=
+go.opentelemetry.io/otel/sdk v1.38.0 h1:l48sr5YbNf2hpCUj/FoGhW9yDkl+Ma+LrVl8qaM5b+E=
+go.opentelemetry.io/otel/sdk v1.38.0/go.mod h1:ghmNdGlVemJI3+ZB5iDEuk4bWA3GkTpW+DOoZMYBVVg=
+go.opentelemetry.io/otel/sdk/metric v1.38.0 h1:aSH66iL0aZqo//xXzQLYozmWrXxyFkBJ6qT5wthqPoM=
+go.opentelemetry.io/otel/sdk/metric v1.38.0/go.mod h1:dg9PBnW9XdQ1Hd6ZnRz689CbtrUp0wMMs9iPcgT9EZA=
+go.opentelemetry.io/otel/trace v1.38.0 h1:Fxk5bKrDZJUH+AMyyIXGcFAPah0oRcT+LuNtJrmcNLE=
+go.opentelemetry.io/otel/trace v1.38.0/go.mod h1:j1P9ivuFsTceSWe1oY+EeW3sc+Pp42sO++GHkg4wwhs=
+go.opentelemetry.io/proto/otlp v1.7.1 h1:gTOMpGDb0WTBOP8JaO72iL3auEZhVmAQg4ipjOVAtj4=
+go.opentelemetry.io/proto/otlp v1.7.1/go.mod h1:b2rVh6rfI/s2pHWNlB7ILJcRALpcNDzKhACevjI+ZnE=
+golang.org/x/net v0.43.0 h1:lat02VYK2j4aLzMzecihNvTlJNQUq316m2Mr9rnM6YE=
+golang.org/x/net v0.43.0/go.mod h1:vhO1fvI4dGsIjh73sWfUVjj3N7CA9WkKJNQm2svM6Jg=
+golang.org/x/sys v0.35.0 h1:vz1N37gP5bs89s7He8XuIYXpyY0+QlsKmzipCbUtyxI=
+golang.org/x/sys v0.35.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/text v0.28.0 h1:rhazDwis8INMIwQ4tpjLDzUhx6RlXqZNPEM0huQojng=
+golang.org/x/text v0.28.0/go.mod h1:U8nCwOR8jO/marOQ0QbDiOngZVEBB7MAiitBuMjXiNU=
+golang.org/x/time v0.14.0 h1:MRx4UaLrDotUKUdCIqzPC48t1Y9hANFKIRpNx+Te8PI=
+golang.org/x/time v0.14.0/go.mod h1:eL/Oa2bBBK0TkX57Fyni+NgnyQQN4LitPmob2Hjnqw4=
+google.golang.org/genproto/googleapis/api v0.0.0-20250825161204-c5933d9347a5 h1:BIRfGDEjiHRrk0QKZe3Xv2ieMhtgRGeLcZQ0mIVn4EY=
+google.golang.org/genproto/googleapis/api v0.0.0-20250825161204-c5933d9347a5/go.mod h1:j3QtIyytwqGr1JUDtYXwtMXWPKsEa5LtzIFN1Wn5WvE=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20250825161204-c5933d9347a5 h1:eaY8u2EuxbRv7c3NiGK0/NedzVsCcV6hDuU5qPX5EGE=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20250825161204-c5933d9347a5/go.mod h1:M4/wBTSeyLxupu3W3tJtOgB14jILAS/XWPSSa3TAlJc=
+google.golang.org/grpc v1.75.0 h1:+TW+dqTd2Biwe6KKfhE5JpiYIBWq865PhKGSXiivqt4=
+google.golang.org/grpc v1.75.0/go.mod h1:JtPAzKiq4v1xcAB2hydNlWI2RnF85XXcV0mhKXr2ecQ=
+google.golang.org/protobuf v1.36.8 h1:xHScyCOEuuwZEc6UtSOvPbAT4zRh0xcNRYekJwfqyMc=
+google.golang.org/protobuf v1.36.8/go.mod h1:fuxRtAxBytpl4zzqUh6/eyUujkJdNiuEkXntxiD/uRU=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gotest.tools/v3 v3.5.2 h1:7koQfIKdy+I8UTetycgUqXWSDwpgv193Ka+qRsmBY8Q=
+gotest.tools/v3 v3.5.2/go.mod h1:LtdLGcnqToBH83WByAAi/wiwSFCArdFIUV/xxN4pcjA=

ci/internal/mullvad.go

@@ -0,0 +1,193 @@
+package internal
+
+import (
+	"bufio"
+	"context"
+	"fmt"
+	"io"
+	"os"
+	"regexp"
+	"strings"
+	"time"
+
+	"github.com/docker/docker/api/types/container"
+	"github.com/docker/docker/api/types/network"
+	"github.com/docker/docker/client"
+	v1 "github.com/opencontainers/image-spec/specs-go/v1"
+)
+
+func MullvadTest(ctx context.Context) error {
+	secrets, err := readSecrets(ctx)
+	if err != nil {
+		return fmt.Errorf("reading secrets: %w", err)
+	}
+
+	const timeout = 15 * time.Second
+	ctx, cancel := context.WithTimeout(ctx, timeout)
+	defer cancel()
+
+	client, err := client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation())
+	if err != nil {
+		return fmt.Errorf("creating Docker client: %w", err)
+	}
+	defer client.Close()
+
+	config := &container.Config{
+		Image:       "qmcgaw/gluetun",
+		StopTimeout: ptrTo(3),
+		Env: []string{
+			"VPN_SERVICE_PROVIDER=mullvad",
+			"VPN_TYPE=wireguard",
+			"LOG_LEVEL=debug",
+			"SERVER_COUNTRIES=USA",
+			"WIREGUARD_PRIVATE_KEY=" + secrets.mullvadWireguardPrivateKey,
+			"WIREGUARD_ADDRESSES=" + secrets.mullvadWireguardAddress,
+		},
+	}
+	hostConfig := &container.HostConfig{
+		AutoRemove: true,
+		CapAdd:     []string{"NET_ADMIN", "NET_RAW"},
+	}
+	networkConfig := (*network.NetworkingConfig)(nil)
+	platform := (*v1.Platform)(nil)
+	const containerName = "" // auto-generated name
+
+	response, err := client.ContainerCreate(ctx, config, hostConfig, networkConfig, platform, containerName)
+	if err != nil {
+		return fmt.Errorf("creating container: %w", err)
+	}
+	for _, warning := range response.Warnings {
+		fmt.Println("Warning during container creation:", warning)
+	}
+	containerID := response.ID
+	defer stopContainer(client, containerID)
+
+	beforeStartTime := time.Now()
+
+	err = client.ContainerStart(ctx, containerID, container.StartOptions{})
+	if err != nil {
+		return fmt.Errorf("starting container: %w", err)
+	}
+
+	return waitForLogLine(ctx, client, containerID, beforeStartTime)
+}
+
+func ptrTo[T any](v T) *T { return &v }
+
+type secrets struct {
+	mullvadWireguardPrivateKey string
+	mullvadWireguardAddress    string
+}
+
+func readSecrets(ctx context.Context) (secrets, error) {
+	expectedSecrets := [...]string{
+		"Mullvad Wireguard private key",
+		"Mullvad Wireguard address",
+	}
+
+	scanner := bufio.NewScanner(os.Stdin)
+	lines := make([]string, 0, len(expectedSecrets))
+
+	for i := range expectedSecrets {
+		fmt.Println("🤫 reading", expectedSecrets[i], "from Stdin...")
+		if !scanner.Scan() {
+			break
+		}
+		lines = append(lines, strings.TrimSpace(scanner.Text()))
+		if ctx.Err() != nil {
+			return secrets{}, ctx.Err()
+		}
+	}
+
+	if err := scanner.Err(); err != nil {
+		return secrets{}, fmt.Errorf("reading secrets from stdin: %w", err)
+	}
+
+	if len(lines) < len(expectedSecrets) {
+		return secrets{}, fmt.Errorf("expected %d secrets via Stdin, but only received %d",
+			len(expectedSecrets), len(lines))
+	}
+	for i, line := range lines {
+		if line == "" {
+			return secrets{}, fmt.Errorf("secret on line %d/%d was empty", i+1, len(lines))
+		}
+	}
+
+	return secrets{
+		mullvadWireguardPrivateKey: lines[0],
+		mullvadWireguardAddress:    lines[1],
+	}, nil
+}
+
+func stopContainer(client *client.Client, containerID string) {
+	const stopTimeout = 5 * time.Second // must be higher than 3s, see above [container.Config]'s StopTimeout field
+	stopCtx, stopCancel := context.WithTimeout(context.Background(), stopTimeout)
+	defer stopCancel()
+
+	err := client.ContainerStop(stopCtx, containerID, container.StopOptions{})
+	if err != nil {
+		fmt.Println("failed to stop container:", err)
+	}
+}
+
+var successRegexp = regexp.MustCompile(`^.+Public IP address is .+$`)
+
+func waitForLogLine(ctx context.Context, client *client.Client, containerID string,
+	beforeStartTime time.Time,
+) error {
+	logOptions := container.LogsOptions{
+		ShowStdout: true,
+		Follow:     true,
+		Since:      beforeStartTime.Format(time.RFC3339Nano),
+	}
+
+	reader, err := client.ContainerLogs(ctx, containerID, logOptions)
+	if err != nil {
+		return fmt.Errorf("error getting container logs: %w", err)
+	}
+	defer reader.Close()
+
+	var linesSeen []string
+	scanner := bufio.NewScanner(reader)
+	for ctx.Err() == nil {
+		if scanner.Scan() {
+			line := scanner.Text()
+			if len(line) > 8 { // remove Docker log prefix
+				line = line[8:]
+			}
+			linesSeen = append(linesSeen, line)
+			if successRegexp.MatchString(line) {
+				fmt.Println("✅ Success line logged")
+				return nil
+			}
+			continue
+		}
+		err := scanner.Err()
+		if err != nil && err != io.EOF {
+			logSeenLines(linesSeen)
+			return fmt.Errorf("reading log stream: %w", err)
+		}
+
+		// The scanner is either done or cannot read because of EOF
+		fmt.Println("The log scanner stopped")
+		logSeenLines(linesSeen)
+
+		// Check if the container is still running
+		inspect, err := client.ContainerInspect(ctx, containerID)
+		if err != nil {
+			return fmt.Errorf("inspecting container: %w", err)
+		}
+		if !inspect.State.Running {
+			return fmt.Errorf("container stopped unexpectedly while waiting for log line. Exit code: %d", inspect.State.ExitCode)
+		}
+	}
+
+	return ctx.Err()
+}
+
+func logSeenLines(lines []string) {
+	fmt.Println("Logs seen so far:")
+	for _, line := range lines {
+		fmt.Println("  " + line)
+	}
+}

cmd/gluetun/main.go

@@ -4,20 +4,23 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"io/fs"
 	"net/http"
 	"os"
+	"os/exec"
 	"os/signal"
-	"strconv"
 	"strings"
 	"syscall"
 	"time"
 	_ "time/tzdata"
 
 	_ "github.com/breml/rootcerts"
-	"github.com/qdm12/dns/pkg/unbound"
 	"github.com/qdm12/gluetun/internal/alpine"
 	"github.com/qdm12/gluetun/internal/cli"
-	"github.com/qdm12/gluetun/internal/configuration"
+	"github.com/qdm12/gluetun/internal/command"
+	"github.com/qdm12/gluetun/internal/configuration/settings"
+	"github.com/qdm12/gluetun/internal/configuration/sources/files"
+	"github.com/qdm12/gluetun/internal/configuration/sources/secrets"
 	"github.com/qdm12/gluetun/internal/constants"
 	"github.com/qdm12/gluetun/internal/dns"
 	"github.com/qdm12/gluetun/internal/firewall"
@@ -26,24 +29,28 @@ import (
 	"github.com/qdm12/gluetun/internal/models"
 	"github.com/qdm12/gluetun/internal/netlink"
 	"github.com/qdm12/gluetun/internal/openvpn"
+	"github.com/qdm12/gluetun/internal/openvpn/extract"
 	"github.com/qdm12/gluetun/internal/portforward"
+	"github.com/qdm12/gluetun/internal/pprof"
+	"github.com/qdm12/gluetun/internal/provider"
 	"github.com/qdm12/gluetun/internal/publicip"
 	"github.com/qdm12/gluetun/internal/routing"
 	"github.com/qdm12/gluetun/internal/server"
 	"github.com/qdm12/gluetun/internal/shadowsocks"
 	"github.com/qdm12/gluetun/internal/storage"
 	"github.com/qdm12/gluetun/internal/tun"
-	"github.com/qdm12/gluetun/internal/updater"
+	updater "github.com/qdm12/gluetun/internal/updater/loop"
+	"github.com/qdm12/gluetun/internal/updater/resolver"
+	"github.com/qdm12/gluetun/internal/updater/unzip"
 	"github.com/qdm12/gluetun/internal/vpn"
-	"github.com/qdm12/golibs/command"
-	"github.com/qdm12/golibs/logging"
-	"github.com/qdm12/golibs/params"
+	"github.com/qdm12/gosettings/reader"
+	"github.com/qdm12/gosettings/reader/sources/env"
 	"github.com/qdm12/goshutdown"
 	"github.com/qdm12/goshutdown/goroutine"
 	"github.com/qdm12/goshutdown/group"
 	"github.com/qdm12/goshutdown/order"
 	"github.com/qdm12/gosplash"
-	"github.com/qdm12/updated/pkg/dnscrypto"
+	"github.com/qdm12/log"
 )
 
 //nolint:gochecknoglobals
@@ -53,11 +60,6 @@ var (
 	created = "an unknown date"
 )
 
-var (
-	errSetupRouting = errors.New("cannot setup routing")
-	errCreateUser   = errors.New("cannot create user")
-)
-
 func main() {
 	buildInfo := models.BuildInformation{
 		Version: version,
@@ -66,33 +68,45 @@ func main() {
 	}
 
 	background := context.Background()
-	signalCtx, stop := signal.NotifyContext(background, syscall.SIGINT, syscall.SIGTERM, os.Interrupt)
+	signalCh := make(chan os.Signal, 1)
+	signal.Notify(signalCh, os.Interrupt, syscall.SIGTERM)
 	ctx, cancel := context.WithCancel(background)
 
-	logger := logging.New(logging.Settings{
-		Level: logging.LevelInfo,
-	})
+	logger := log.New(log.SetLevel(log.LevelInfo))
 
 	args := os.Args
 	tun := tun.New()
-	netLinker := netlink.New()
+	netLinkDebugLogger := logger.New(log.SetComponent("netlink"))
+	netLinker := netlink.New(netLinkDebugLogger)
 	cli := cli.New()
-	env := params.New()
-	cmder := command.NewCmder()
+	cmder := command.New()
+
+	reader := reader.New(reader.Settings{
+		Sources: []reader.Source{
+			secrets.New(logger),
+			files.New(logger),
+			env.New(env.Settings{}),
+		},
+		HandleDeprecatedKey: func(source, deprecatedKey, currentKey string) {
+			logger.Warn("You are using the old " + source + " " + deprecatedKey +
+				", please consider changing it to " + currentKey)
+		},
+	})
 
 	errorCh := make(chan error)
 	go func() {
-		errorCh <- _main(ctx, buildInfo, args, logger, env, tun, netLinker, cmder, cli)
+		errorCh <- _main(ctx, buildInfo, args, logger, reader, tun, netLinker, cmder, cli)
 	}()
 
+	// Wait for OS signal or run error
+	var err error
 	select {
-	case <-signalCtx.Done():
-		stop()
+	case receivedSignal := <-signalCh:
+		signal.Stop(signalCh)
 		fmt.Println("")
-		logger.Warn("Caught OS signal, shutting down")
+		logger.Warn("Caught OS signal " + receivedSignal.String() + ", shutting down")
 		cancel()
-	case err := <-errorCh:
-		stop()
+	case err = <-errorCh:
 		close(errorCh)
 		if err == nil { // expected exit such as healthcheck
 			os.Exit(0)
@@ -101,48 +115,56 @@ func main() {
 		cancel()
 	}
 
+	// Shutdown timed sequence, and force exit on second OS signal
 	const shutdownGracePeriod = 5 * time.Second
 	timer := time.NewTimer(shutdownGracePeriod)
 	select {
-	case <-errorCh:
-		if !timer.Stop() {
-			<-timer.C
+	case shutdownErr := <-errorCh:
+		timer.Stop()
+		if shutdownErr != nil {
+			logger.Warnf("Shutdown failed: %s", shutdownErr)
+			os.Exit(1)
 		}
+
 		logger.Info("Shutdown successful")
+		if err != nil {
+			os.Exit(1)
+		}
+		os.Exit(0)
 	case <-timer.C:
 		logger.Warn("Shutdown timed out")
+		os.Exit(1)
 	}
-
-	os.Exit(1)
 }
 
-var (
-	errCommandUnknown = errors.New("command is unknown")
-)
+var errCommandUnknown = errors.New("command is unknown")
 
-//nolint:gocognit,gocyclo
+//nolint:gocognit,gocyclo,maintidx
 func _main(ctx context.Context, buildInfo models.BuildInformation,
-	args []string, logger logging.ParentLogger, env params.Interface,
-	tun tun.Interface, netLinker netlink.NetLinker, cmder command.RunStarter,
-	cli cli.CLIer) error {
+	args []string, logger log.LoggerInterface, reader *reader.Reader,
+	tun Tun, netLinker netLinker, cmder RunStarter,
+	cli clier,
+) error {
 	if len(args) > 1 { // cli operation
 		switch args[1] {
 		case "healthcheck":
-			return cli.HealthCheck(ctx, env, logger)
+			return cli.HealthCheck(ctx, reader, logger)
 		case "clientkey":
 			return cli.ClientKey(args[2:])
 		case "openvpnconfig":
-			return cli.OpenvpnConfig(logger, env)
+			return cli.OpenvpnConfig(logger, reader, netLinker)
 		case "update":
 			return cli.Update(ctx, args[2:], logger)
 		case "format-servers":
 			return cli.FormatServers(args[2:])
+		case "genkey":
+			return cli.GenKey(args[2:])
 		default:
 			return fmt.Errorf("%w: %s", errCommandUnknown, args[1])
 		}
 	}
 
-	announcementExp, err := time.Parse(time.RFC3339, "2021-10-02T00:00:00Z")
+	announcementExp, err := time.Parse(time.RFC3339, "2024-12-01T00:00:00Z")
 	if err != nil {
 		return err
 	}
@@ -152,8 +174,8 @@ func _main(ctx context.Context, buildInfo models.BuildInformation,
 		Emails:       []string{"quentin.mcgaw@gmail.com"},
 		Version:      buildInfo.Version,
 		Commit:       buildInfo.Commit,
-		BuildDate:    buildInfo.Created,
-		Announcement: "Wireguard is now supported for Mullvad, IVPN and Windscribe!",
+		Created:      buildInfo.Created,
+		Announcement: "All control server routes are now private by default",
 		AnnounceExp:  announcementExp,
 		// Sponsor information
 		PaypalUser:    "qmcgaw",
@@ -163,86 +185,30 @@ func _main(ctx context.Context, buildInfo models.BuildInformation,
 		fmt.Println(line)
 	}
 
-	// TODO run this in a loop or in openvpn to reload from file without restarting
-	storageLogger := logger.NewChild(logging.Settings{Prefix: "storage: "})
-	storage, err := storage.New(storageLogger, constants.ServersData)
+	var allSettings settings.Settings
+	err = allSettings.Read(reader, logger)
 	if err != nil {
 		return err
 	}
-	allServers := storage.GetServers()
+	allSettings.SetDefaults()
 
-	var allSettings configuration.Settings
-	err = allSettings.Read(env, allServers,
-		logger.NewChild(logging.Settings{Prefix: "configuration: "}))
+	// Note: no need to validate minimal settings for the firewall:
+	// - global log level is parsed below
+	// - firewall Debug and Enabled are booleans parsed from source
+	logLevel, err := log.ParseLevel(allSettings.Log.Level)
 	if err != nil {
-		return err
+		return fmt.Errorf("log level: %w", err)
 	}
-	logger.PatchLevel(allSettings.Log.Level)
+	logger.Patch(log.SetLevel(logLevel))
+	netLinker.PatchLoggerLevel(logLevel)
 
-	puid, pgid := allSettings.System.PUID, allSettings.System.PGID
-
-	const clientTimeout = 15 * time.Second
-	httpClient := &http.Client{Timeout: clientTimeout}
-	// Create configurators
-	alpineConf := alpine.New()
-	ovpnConf := openvpn.New(
-		logger.NewChild(logging.Settings{Prefix: "openvpn configurator: "}),
-		cmder, puid, pgid)
-	dnsCrypto := dnscrypto.New(httpClient, "", "")
-	const cacertsPath = "/etc/ssl/certs/ca-certificates.crt"
-	dnsConf := unbound.NewConfigurator(nil, cmder, dnsCrypto,
-		"/etc/unbound", "/usr/sbin/unbound", cacertsPath)
-
-	err = printVersions(ctx, logger, []printVersionElement{
-		{name: "Alpine", getVersion: alpineConf.Version},
-		{name: "OpenVPN 2.4", getVersion: ovpnConf.Version24},
-		{name: "OpenVPN 2.5", getVersion: ovpnConf.Version25},
-		{name: "Unbound", getVersion: dnsConf.Version},
-		{name: "IPtables", getVersion: func(ctx context.Context) (version string, err error) {
-			return firewall.Version(ctx, cmder)
-		}},
-	})
-	if err != nil {
-		return err
+	routingLogger := logger.New(log.SetComponent("routing"))
+	if *allSettings.Firewall.Debug { // To remove in v4
+		routingLogger.Patch(log.SetLevel(log.LevelDebug))
 	}
-
-	logger.Info(allSettings.String())
-
-	if err := os.MkdirAll("/tmp/gluetun", 0644); err != nil {
-		return err
-	}
-	if err := os.MkdirAll("/gluetun", 0644); err != nil {
-		return err
-	}
-
-	const defaultUsername = "nonrootuser"
-	nonRootUsername, err := alpineConf.CreateUser(defaultUsername, puid)
-	if err != nil {
-		return fmt.Errorf("%w: %s", errCreateUser, err)
-	}
-	if nonRootUsername != defaultUsername {
-		logger.Info("using existing username " + nonRootUsername + " corresponding to user id " + fmt.Sprint(puid))
-	}
-	// set it for Unbound
-	// TODO remove this when migrating to qdm12/dns v2
-	allSettings.DNS.Unbound.Username = nonRootUsername
-	allSettings.VPN.OpenVPN.ProcUser = nonRootUsername
-
-	if err := os.Chown("/etc/unbound", puid, pgid); err != nil {
-		return err
-	}
-
-	firewallLogLevel := allSettings.Log.Level
-	if allSettings.Firewall.Debug {
-		firewallLogLevel = logging.LevelDebug
-	}
-	routingLogger := logger.NewChild(logging.Settings{
-		Prefix: "routing: ",
-		Level:  firewallLogLevel,
-	})
 	routingConf := routing.New(netLinker, routingLogger)
 
-	defaultInterface, defaultGateway, err := routingConf.DefaultRoute()
+	defaultRoutes, err := routingConf.DefaultRoutes()
 	if err != nil {
 		return err
 	}
@@ -252,28 +218,102 @@ func _main(ctx context.Context, buildInfo models.BuildInformation,
 		return err
 	}
 
-	defaultIP, err := routingConf.DefaultIP()
+	firewallLogger := logger.New(log.SetComponent("firewall"))
+	if *allSettings.Firewall.Debug { // To remove in v4
+		firewallLogger.Patch(log.SetLevel(log.LevelDebug))
+	}
+	firewallConf, err := firewall.NewConfig(ctx, firewallLogger, cmder,
+		defaultRoutes, localNetworks)
 	if err != nil {
 		return err
 	}
 
-	firewallLogger := logger.NewChild(logging.Settings{
-		Prefix: "firewall: ",
-		Level:  firewallLogLevel,
+	if *allSettings.Firewall.Enabled {
+		err = firewallConf.SetEnabled(ctx, true)
+		if err != nil {
+			return err
+		}
+	}
+
+	// TODO run this in a loop or in openvpn to reload from file without restarting
+	storageLogger := logger.New(log.SetComponent("storage"))
+	storage, err := storage.New(storageLogger, *allSettings.Storage.Filepath)
+	if err != nil {
+		return err
+	}
+
+	ipv6Supported, err := netLinker.IsIPv6Supported()
+	if err != nil {
+		return fmt.Errorf("checking for IPv6 support: %w", err)
+	}
+
+	err = allSettings.Validate(storage, ipv6Supported, logger)
+	if err != nil {
+		return err
+	}
+
+	allSettings.Pprof.HTTPServer.Logger = logger.New(log.SetComponent("pprof"))
+	pprofServer, err := pprof.New(allSettings.Pprof)
+	if err != nil {
+		return fmt.Errorf("creating Pprof server: %w", err)
+	}
+
+	puid, pgid := int(*allSettings.System.PUID), int(*allSettings.System.PGID)
+
+	const clientTimeout = 15 * time.Second
+	httpClient := &http.Client{Timeout: clientTimeout}
+	// Create configurators
+	alpineConf := alpine.New()
+	ovpnConf := openvpn.New(
+		logger.New(log.SetComponent("openvpn configurator")),
+		cmder, puid, pgid)
+
+	err = printVersions(ctx, logger, []printVersionElement{
+		{name: "Alpine", getVersion: alpineConf.Version},
+		{name: "OpenVPN 2.5", getVersion: ovpnConf.Version25},
+		{name: "OpenVPN 2.6", getVersion: ovpnConf.Version26},
+		{name: "IPtables", getVersion: firewallConf.Version},
 	})
-	firewallConf := firewall.NewConfig(firewallLogger, cmder,
-		defaultInterface, defaultGateway, localNetworks, defaultIP)
+	if err != nil {
+		return err
+	}
+
+	logger.Info(allSettings.String())
+
+	for _, warning := range allSettings.Warnings() {
+		logger.Warn(warning)
+	}
+
+	const permission = fs.FileMode(0o644)
+	err = os.MkdirAll("/tmp/gluetun", permission)
+	if err != nil {
+		return err
+	}
+	err = os.MkdirAll("/gluetun", permission)
+	if err != nil {
+		return err
+	}
+
+	const defaultUsername = "nonrootuser"
+	nonRootUsername, err := alpineConf.CreateUser(defaultUsername, puid)
+	if err != nil {
+		return fmt.Errorf("creating user: %w", err)
+	}
+	if nonRootUsername != defaultUsername {
+		logger.Info("using existing username " + nonRootUsername + " corresponding to user id " + fmt.Sprint(puid))
+	}
+	allSettings.VPN.OpenVPN.ProcessUser = nonRootUsername
 
 	if err := routingConf.Setup(); err != nil {
 		if strings.Contains(err.Error(), "operation not permitted") {
 			logger.Warn("💡 Tip: Are you passing NET_ADMIN capability to gluetun?")
 		}
-		return fmt.Errorf("%w: %s", errSetupRouting, err)
+		return fmt.Errorf("setting up routing: %w", err)
 	}
 	defer func() {
-		logger.Info("routing cleanup...")
+		routingLogger.Info("routing cleanup...")
 		if err := routingConf.TearDown(); err != nil {
-			logger.Error("cannot teardown routing: " + err.Error())
+			routingLogger.Error("cannot teardown routing: " + err.Error())
 		}
 	}()
 
@@ -284,25 +324,30 @@ func _main(ctx context.Context, buildInfo models.BuildInformation,
 		return err
 	}
 
-	if err := tun.Check(constants.TunnelDevice); err != nil {
-		logger.Info(err.Error() + "; creating it...")
-		err = tun.Create(constants.TunnelDevice)
-		if err != nil {
-			return err
-		}
+	err = routingConf.AddLocalRules(localNetworks)
+	if err != nil {
+		return fmt.Errorf("adding local rules: %w", err)
 	}
 
-	if allSettings.Firewall.Enabled {
-		err := firewallConf.SetEnabled(ctx, true) // disabled by default
+	const tunDevice = "/dev/net/tun"
+	err = tun.Check(tunDevice)
+	if err != nil {
+		if !errors.Is(err, os.ErrNotExist) {
+			return fmt.Errorf("checking TUN device: %w (see the Wiki errors/tun page)", err)
+		}
+		logger.Info(err.Error() + "; creating it...")
+		err = tun.Create(tunDevice)
 		if err != nil {
-			return err
+			return fmt.Errorf("creating tun device: %w", err)
 		}
 	}
 
 	for _, port := range allSettings.Firewall.InputPorts {
-		err = firewallConf.SetAllowedPort(ctx, port, defaultInterface)
-		if err != nil {
-			return err
+		for _, defaultRoute := range defaultRoutes {
+			err = firewallConf.SetAllowedPort(ctx, port, defaultRoute.NetInterface)
+			if err != nil {
+				return err
+			}
 		}
 	} // TODO move inside firewall?
 
@@ -317,58 +362,85 @@ func _main(ctx context.Context, buildInfo models.BuildInformation,
 	}
 	defaultGroupOptions := []group.Option{
 		group.OptionTimeout(defaultShutdownTimeout),
-		group.OptionOnSuccess(defaultShutdownOnSuccess)}
+		group.OptionOnSuccess(defaultShutdownOnSuccess),
+	}
 
 	controlGroupHandler := goshutdown.NewGroupHandler("control", defaultGroupOptions...)
 	tickersGroupHandler := goshutdown.NewGroupHandler("tickers", defaultGroupOptions...)
 	otherGroupHandler := goshutdown.NewGroupHandler("other", defaultGroupOptions...)
 
-	portForwardLogger := logger.NewChild(logging.Settings{Prefix: "port forwarding: "})
-	portForwardLooper := portforward.NewLoop(allSettings.VPN.Provider.PortForwarding,
-		httpClient, firewallConf, portForwardLogger)
-	portForwardHandler, portForwardCtx, portForwardDone := goshutdown.NewGoRoutineHandler(
-		"port forwarding", goroutine.OptionTimeout(time.Second))
-	go portForwardLooper.Run(portForwardCtx, portForwardDone)
+	if *allSettings.Pprof.Enabled {
+		// TODO run in run loop so this can be patched at runtime
+		pprofReady := make(chan struct{})
+		pprofHandler, pprofCtx, pprofDone := goshutdown.NewGoRoutineHandler("pprof server")
+		go pprofServer.Run(pprofCtx, pprofReady, pprofDone)
+		otherGroupHandler.Add(pprofHandler)
+		<-pprofReady
+	}
+
+	portForwardLogger := logger.New(log.SetComponent("port forwarding"))
+	portForwardLooper := portforward.NewLoop(allSettings.VPN.Provider.PortForwarding,
+		routingConf, httpClient, firewallConf, portForwardLogger, cmder, puid, pgid)
+	portForwardRunError, err := portForwardLooper.Start(ctx)
+	if err != nil {
+		return fmt.Errorf("starting port forwarding loop: %w", err)
+	}
+
+	dnsLogger := logger.New(log.SetComponent("dns"))
+	dnsLooper, err := dns.NewLoop(allSettings.DNS, httpClient,
+		dnsLogger)
+	if err != nil {
+		return fmt.Errorf("creating DNS loop: %w", err)
+	}
 
-	unboundLogger := logger.NewChild(logging.Settings{Prefix: "dns over tls: "})
-	unboundLooper := dns.NewLoop(dnsConf, allSettings.DNS, httpClient,
-		unboundLogger)
 	dnsHandler, dnsCtx, dnsDone := goshutdown.NewGoRoutineHandler(
-		"unbound", goroutine.OptionTimeout(defaultShutdownTimeout))
-	// wait for unboundLooper.Restart or its ticker launched with RunRestartTicker
-	go unboundLooper.Run(dnsCtx, dnsDone)
+		"dns", goroutine.OptionTimeout(defaultShutdownTimeout))
+	// wait for dnsLooper.Restart or its ticker launched with RunRestartTicker
+	go dnsLooper.Run(dnsCtx, dnsDone)
 	otherGroupHandler.Add(dnsHandler)
 
 	dnsTickerHandler, dnsTickerCtx, dnsTickerDone := goshutdown.NewGoRoutineHandler(
 		"dns ticker", goroutine.OptionTimeout(defaultShutdownTimeout))
-	go unboundLooper.RunRestartTicker(dnsTickerCtx, dnsTickerDone)
+	go dnsLooper.RunRestartTicker(dnsTickerCtx, dnsTickerDone)
 	controlGroupHandler.Add(dnsTickerHandler)
 
-	publicIPLooper := publicip.NewLoop(httpClient,
-		logger.NewChild(logging.Settings{Prefix: "ip getter: "}),
-		allSettings.PublicIP, puid, pgid)
-	pubIPHandler, pubIPCtx, pubIPDone := goshutdown.NewGoRoutineHandler(
-		"public IP", goroutine.OptionTimeout(defaultShutdownTimeout))
-	go publicIPLooper.Run(pubIPCtx, pubIPDone)
-	otherGroupHandler.Add(pubIPHandler)
+	publicIPLooper, err := publicip.NewLoop(allSettings.PublicIP, puid, pgid, httpClient,
+		logger.New(log.SetComponent("ip getter")))
+	if err != nil {
+		return fmt.Errorf("creating public ip loop: %w", err)
+	}
+	publicIPRunError, err := publicIPLooper.Start(ctx)
+	if err != nil {
+		return fmt.Errorf("starting public ip loop: %w", err)
+	}
 
-	pubIPTickerHandler, pubIPTickerCtx, pubIPTickerDone := goshutdown.NewGoRoutineHandler(
-		"public IP", goroutine.OptionTimeout(defaultShutdownTimeout))
-	go publicIPLooper.RunRestartTicker(pubIPTickerCtx, pubIPTickerDone)
-	tickersGroupHandler.Add(pubIPTickerHandler)
+	healthLogger := logger.New(log.SetComponent("healthcheck"))
+	healthcheckServer := healthcheck.NewServer(allSettings.Health, healthLogger)
+	healthServerHandler, healthServerCtx, healthServerDone := goshutdown.NewGoRoutineHandler(
+		"HTTP health server", goroutine.OptionTimeout(defaultShutdownTimeout))
+	go healthcheckServer.Run(healthServerCtx, healthServerDone)
+	healthChecker := healthcheck.NewChecker(healthLogger)
 
-	vpnLogger := logger.NewChild(logging.Settings{Prefix: "vpn: "})
-	vpnLooper := vpn.NewLoop(allSettings.VPN, allSettings.Firewall.VPNInputPorts,
-		allServers, ovpnConf, netLinker, firewallConf, routingConf, portForwardLooper,
-		cmder, publicIPLooper, unboundLooper, vpnLogger, httpClient,
-		buildInfo, allSettings.VersionInformation)
+	updaterLogger := logger.New(log.SetComponent("updater"))
+
+	unzipper := unzip.New(httpClient)
+	parallelResolver := resolver.NewParallelResolver(allSettings.Updater.DNSAddress)
+	openvpnFileExtractor := extract.New()
+	providers := provider.NewProviders(storage, time.Now, updaterLogger,
+		httpClient, unzipper, parallelResolver, publicIPLooper.Fetcher(),
+		openvpnFileExtractor, allSettings.Updater)
+
+	vpnLogger := logger.New(log.SetComponent("vpn"))
+	vpnLooper := vpn.NewLoop(allSettings.VPN, ipv6Supported, allSettings.Firewall.VPNInputPorts,
+		providers, storage, allSettings.Health, healthChecker, healthcheckServer, ovpnConf, netLinker, firewallConf,
+		routingConf, portForwardLooper, cmder, publicIPLooper, dnsLooper, vpnLogger, httpClient,
+		buildInfo, *allSettings.Version.Enabled)
 	vpnHandler, vpnCtx, vpnDone := goshutdown.NewGoRoutineHandler(
 		"vpn", goroutine.OptionTimeout(time.Second))
 	go vpnLooper.Run(vpnCtx, vpnDone)
 
-	updaterLooper := updater.NewLooper(allSettings.Updater,
-		allServers, storage, vpnLooper.SetServers, httpClient,
-		logger.NewChild(logging.Settings{Prefix: "updater: "}))
+	updaterLooper := updater.NewLoop(allSettings.Updater,
+		providers, storage, httpClient, updaterLogger)
 	updaterHandler, updaterCtx, updaterDone := goshutdown.NewGoRoutineHandler(
 		"updater", goroutine.OptionTimeout(defaultShutdownTimeout))
 	// wait for updaterLooper.Restart() or its ticket launched with RunRestartTicker
@@ -381,48 +453,64 @@ func _main(ctx context.Context, buildInfo models.BuildInformation,
 	controlGroupHandler.Add(updaterTickerHandler)
 
 	httpProxyLooper := httpproxy.NewLoop(
-		logger.NewChild(logging.Settings{Prefix: "http proxy: "}),
+		logger.New(log.SetComponent("http proxy")),
 		allSettings.HTTPProxy)
 	httpProxyHandler, httpProxyCtx, httpProxyDone := goshutdown.NewGoRoutineHandler(
 		"http proxy", goroutine.OptionTimeout(defaultShutdownTimeout))
 	go httpProxyLooper.Run(httpProxyCtx, httpProxyDone)
 	otherGroupHandler.Add(httpProxyHandler)
 
-	shadowsocksLooper := shadowsocks.NewLooper(allSettings.ShadowSocks,
-		logger.NewChild(logging.Settings{Prefix: "shadowsocks: "}))
+	shadowsocksLooper := shadowsocks.NewLoop(allSettings.Shadowsocks,
+		logger.New(log.SetComponent("shadowsocks")))
 	shadowsocksHandler, shadowsocksCtx, shadowsocksDone := goshutdown.NewGoRoutineHandler(
 		"shadowsocks proxy", goroutine.OptionTimeout(defaultShutdownTimeout))
 	go shadowsocksLooper.Run(shadowsocksCtx, shadowsocksDone)
 	otherGroupHandler.Add(shadowsocksHandler)
 
-	controlServerAddress := ":" + strconv.Itoa(int(allSettings.ControlServer.Port))
-	controlServerLogging := allSettings.ControlServer.Log
 	httpServerHandler, httpServerCtx, httpServerDone := goshutdown.NewGoRoutineHandler(
 		"http server", goroutine.OptionTimeout(defaultShutdownTimeout))
-	httpServer := server.New(httpServerCtx, controlServerAddress, controlServerLogging,
-		logger.NewChild(logging.Settings{Prefix: "http server: "}),
-		buildInfo, vpnLooper, portForwardLooper, unboundLooper, updaterLooper, publicIPLooper)
-	go httpServer.Run(httpServerCtx, httpServerDone)
+	httpServer, err := server.New(httpServerCtx, allSettings.ControlServer,
+		logger.New(log.SetComponent("http server")),
+		buildInfo, vpnLooper, portForwardLooper, dnsLooper, updaterLooper, publicIPLooper,
+		storage, ipv6Supported)
+	if err != nil {
+		return fmt.Errorf("setting up control server: %w", err)
+	}
+	httpServerReady := make(chan struct{})
+	go httpServer.Run(httpServerCtx, httpServerReady, httpServerDone)
+	<-httpServerReady
 	controlGroupHandler.Add(httpServerHandler)
 
-	healthLogger := logger.NewChild(logging.Settings{Prefix: "healthcheck: "})
-	healthcheckServer := healthcheck.NewServer(allSettings.Health, healthLogger, vpnLooper)
-	healthServerHandler, healthServerCtx, healthServerDone := goshutdown.NewGoRoutineHandler(
-		"HTTP health server", goroutine.OptionTimeout(defaultShutdownTimeout))
-	go healthcheckServer.Run(healthServerCtx, healthServerDone)
-
 	orderHandler := goshutdown.NewOrderHandler("gluetun",
 		order.OptionTimeout(totalShutdownTimeout),
 		order.OptionOnSuccess(defaultShutdownOnSuccess),
 		order.OptionOnFailure(defaultShutdownOnFailure))
 	orderHandler.Append(controlGroupHandler, tickersGroupHandler, healthServerHandler,
-		vpnHandler, portForwardHandler, otherGroupHandler)
+		vpnHandler, otherGroupHandler)
 
 	// Start VPN for the first time in a blocking call
 	// until the VPN is launched
 	_, _ = vpnLooper.ApplyStatus(ctx, constants.Running) // TODO option to disable with variable
 
-	<-ctx.Done()
+	select {
+	case <-ctx.Done():
+		stoppers := []interface {
+			String() string
+			Stop() error
+		}{
+			portForwardLooper, publicIPLooper,
+		}
+		for _, stopper := range stoppers {
+			err := stopper.Stop()
+			if err != nil {
+				logger.Error(fmt.Sprintf("stopping %s: %s", stopper, err))
+			}
+		}
+	case err := <-portForwardRunError:
+		logger.Errorf("port forwarding loop crashed: %s", err)
+	case err := <-publicIPRunError:
+		logger.Errorf("public IP loop crashed: %s", err)
+	}
 
 	return orderHandler.Shutdown(context.Background())
 }
@@ -437,7 +525,8 @@ type infoer interface {
 }
 
 func printVersions(ctx context.Context, logger infoer,
-	elements []printVersionElement) (err error) {
+	elements []printVersionElement,
+) (err error) {
 	const timeout = 5 * time.Second
 	ctx, cancel := context.WithTimeout(ctx, timeout)
 	defer cancel()
@@ -445,10 +534,69 @@ func printVersions(ctx context.Context, logger infoer,
 	for _, element := range elements {
 		version, err := element.getVersion(ctx)
 		if err != nil {
-			return err
+			return fmt.Errorf("getting %s version: %w", element.name, err)
 		}
 		logger.Info(element.name + " version: " + version)
 	}
 
 	return nil
 }
+
+type netLinker interface {
+	Addresser
+	Router
+	Ruler
+	Linker
+	IsWireguardSupported() (ok bool, err error)
+	IsIPv6Supported() (ok bool, err error)
+	PatchLoggerLevel(level log.Level)
+}
+
+type Addresser interface {
+	AddrList(link netlink.Link, family int) (
+		addresses []netlink.Addr, err error)
+	AddrReplace(link netlink.Link, addr netlink.Addr) error
+}
+
+type Router interface {
+	RouteList(family int) (routes []netlink.Route, err error)
+	RouteAdd(route netlink.Route) error
+	RouteDel(route netlink.Route) error
+	RouteReplace(route netlink.Route) error
+}
+
+type Ruler interface {
+	RuleList(family int) (rules []netlink.Rule, err error)
+	RuleAdd(rule netlink.Rule) error
+	RuleDel(rule netlink.Rule) error
+}
+
+type Linker interface {
+	LinkList() (links []netlink.Link, err error)
+	LinkByName(name string) (link netlink.Link, err error)
+	LinkByIndex(index int) (link netlink.Link, err error)
+	LinkAdd(link netlink.Link) (linkIndex int, err error)
+	LinkDel(link netlink.Link) (err error)
+	LinkSetUp(link netlink.Link) (linkIndex int, err error)
+	LinkSetDown(link netlink.Link) (err error)
+}
+
+type clier interface {
+	ClientKey(args []string) error
+	FormatServers(args []string) error
+	OpenvpnConfig(logger cli.OpenvpnConfigLogger, reader *reader.Reader, ipv6Checker cli.IPv6Checker) error
+	HealthCheck(ctx context.Context, reader *reader.Reader, warner cli.Warner) error
+	Update(ctx context.Context, args []string, logger cli.UpdaterLogger) error
+	GenKey(args []string) error
+}
+
+type Tun interface {
+	Check(tunDevice string) error
+	Create(tunDevice string) error
+}
+
+type RunStarter interface {
+	Run(cmd *exec.Cmd) (output string, err error)
+	Start(cmd *exec.Cmd) (stdoutLines, stderrLines <-chan string,
+		waitError <-chan error, err error)
+}

go.mod

@@ -1,44 +1,69 @@
 module github.com/qdm12/gluetun
 
-go 1.17
+go 1.25.0
 
 require (
-	github.com/breml/rootcerts v0.2.0
-	github.com/fatih/color v1.13.0
-	github.com/go-ping/ping v0.0.0-20210911151512-381826476871
+	github.com/ProtonMail/go-srp v0.0.7
+	github.com/breml/rootcerts v0.3.3
+	github.com/fatih/color v1.18.0
 	github.com/golang/mock v1.6.0
-	github.com/qdm12/dns v1.11.0
-	github.com/qdm12/golibs v0.0.0-20210822203818-5c568b0777b6
+	github.com/klauspost/compress v1.18.1
+	github.com/klauspost/pgzip v1.2.6
+	github.com/pelletier/go-toml/v2 v2.2.4
+	github.com/qdm12/dns/v2 v2.0.0-rc9.0.20251114155417-248acd28339f
+	github.com/qdm12/gosettings v0.4.4
 	github.com/qdm12/goshutdown v0.3.0
-	github.com/qdm12/gosplash v0.1.0
-	github.com/qdm12/ss-server v0.3.0
-	github.com/qdm12/updated v0.0.0-20210603204757-205acfe6937e
-	github.com/stretchr/testify v1.7.0
-	github.com/vishvananda/netlink v1.1.0
-	golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c
-	golang.zx2c4.com/wireguard v0.0.0-20210805125648-3957e9b9dd19
-	golang.zx2c4.com/wireguard/wgctrl v0.0.0-20210803171230-4253848d036c
-	inet.af/netaddr v0.0.0-20210718074554-06ca8145d722
+	github.com/qdm12/gosplash v0.2.0
+	github.com/qdm12/gotree v0.3.0
+	github.com/qdm12/log v0.1.0
+	github.com/qdm12/ss-server v0.6.0
+	github.com/stretchr/testify v1.11.1
+	github.com/ulikunitz/xz v0.5.15
+	github.com/vishvananda/netlink v1.3.1
+	github.com/youmark/pkcs8 v0.0.0-20201027041543-1326539a0a0a
+	golang.org/x/exp v0.0.0-20241009180824-f66d83c29e7c
+	golang.org/x/net v0.47.0
+	golang.org/x/sys v0.38.0
+	golang.org/x/text v0.31.0
+	golang.zx2c4.com/wireguard v0.0.0-20231211153847-12269c276173
+	golang.zx2c4.com/wireguard/wgctrl v0.0.0-20230429144221-925a1e7659e6
+	gopkg.in/ini.v1 v1.67.0
 )
 
 require (
+	github.com/ProtonMail/bcrypt v0.0.0-20211005172633-e235017c1baf // indirect
+	github.com/ProtonMail/go-crypto v1.3.0-proton // indirect
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
+	github.com/cloudflare/circl v1.6.1 // indirect
+	github.com/cronokirby/saferith v0.33.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/google/go-cmp v0.5.5 // indirect
-	github.com/google/uuid v1.2.0 // indirect
-	github.com/josharian/native v0.0.0-20200817173448-b6b71def0850 // indirect
-	github.com/mattn/go-colorable v0.1.9 // indirect
-	github.com/mattn/go-isatty v0.0.14 // indirect
-	github.com/mdlayher/genetlink v1.0.0 // indirect
-	github.com/mdlayher/netlink v1.4.0 // indirect
-	github.com/miekg/dns v1.1.40 // indirect
-	github.com/mr-tron/base58 v1.2.0 // indirect
+	github.com/google/go-cmp v0.6.0 // indirect
+	github.com/josharian/native v1.1.0 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/mdlayher/genetlink v1.3.2 // indirect
+	github.com/mdlayher/netlink v1.7.2 // indirect
+	github.com/mdlayher/socket v0.4.1 // indirect
+	github.com/miekg/dns v1.1.62 // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/prometheus/client_golang v1.20.5 // indirect
+	github.com/prometheus/client_model v0.6.1 // indirect
+	github.com/prometheus/common v0.60.1 // indirect
+	github.com/prometheus/procfs v0.15.1 // indirect
+	github.com/qdm12/goservices v0.1.1-0.20251104135713-6bee97bd4978 // indirect
 	github.com/riobard/go-bloom v0.0.0-20200614022211-cdc8013cb5b3 // indirect
-	github.com/vishvananda/netns v0.0.0-20191106174202-0a2b9b5464df // indirect
-	go4.org/intern v0.0.0-20210108033219-3eb7198706b2 // indirect
-	go4.org/unsafe/assume-no-moving-gc v0.0.0-20201222180813-1025295fd063 // indirect
-	golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97 // indirect
-	golang.org/x/net v0.0.0-20210504132125-bbd867fde50d // indirect
-	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect
-	gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c // indirect
+	github.com/vishvananda/netns v0.0.5 // indirect
+	golang.org/x/crypto v0.44.0 // indirect
+	golang.org/x/mod v0.29.0 // indirect
+	golang.org/x/sync v0.18.0 // indirect
+	golang.org/x/time v0.3.0 // indirect
+	golang.org/x/tools v0.38.0 // indirect
+	golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2 // indirect
+	google.golang.org/protobuf v1.35.1 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+	kernel.org/pub/linux/libs/security/libcap/cap v1.2.70 // indirect
+	kernel.org/pub/linux/libs/security/libcap/psx v1.2.70 // indirect
 )

go.sum

@@ -1,252 +1,192 @@
-github.com/PuerkitoBio/purell v1.1.0/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0=
-github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE=
-github.com/alcortesm/tgz v0.0.0-20161220082320-9c5fe88206d7/go.mod h1:6zEj6s6u/ghQa61ZWa/C2Aw3RkjiTBOix7dkqa1VLIs=
-github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239/go.mod h1:2FmKhYUyUczH0OGQWaF5ceTx0UBShxjsH6f8oGKYe2c=
-github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5/go.mod h1:wHh0iHkYZB8zMSxRWpUBQtwG5a7fFgvEO+odwuTv2gs=
-github.com/asaskevich/govalidator v0.0.0-20180720115003-f9ffefc3facf/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY=
-github.com/breml/rootcerts v0.2.0 h1:bBIgVe8bS0Ec+orgWpZ/GRYt3a0O8yoW+g2kSBY2aLE=
-github.com/breml/rootcerts v0.2.0/go.mod h1:24FDtzYMpqIeYC7QzaE8VPRQaFZU5TIUDlyk8qwjD88=
-github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
-github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/ProtonMail/bcrypt v0.0.0-20210511135022-227b4adcab57/go.mod h1:HecWFHognK8GfRDGnFQbW/LiV7A3MX3gZVs45vk5h8I=
+github.com/ProtonMail/bcrypt v0.0.0-20211005172633-e235017c1baf h1:yc9daCCYUefEs69zUkSzubzjBbL+cmOXgnmt9Fyd9ug=
+github.com/ProtonMail/bcrypt v0.0.0-20211005172633-e235017c1baf/go.mod h1:o0ESU9p83twszAU8LBeJKFAAMX14tISa0yk4Oo5TOqo=
+github.com/ProtonMail/go-crypto v0.0.0-20230321155629-9a39f2531310/go.mod h1:8TI4H3IbrackdNgv+92dI+rhpCaLqM0IfpgCgenFvRE=
+github.com/ProtonMail/go-crypto v1.3.0-proton h1:tAQKQRZX/73VmzK6yHSCaRUOvS/3OYSQzhXQsrR7yUM=
+github.com/ProtonMail/go-crypto v1.3.0-proton/go.mod h1:9whxjD8Rbs29b4XWbB8irEcE8KHMqaR2e7GWU1R+/PE=
+github.com/ProtonMail/go-srp v0.0.7 h1:Sos3Qk+th4tQR64vsxGIxYpN3rdnG9Wf9K4ZloC1JrI=
+github.com/ProtonMail/go-srp v0.0.7/go.mod h1:giCp+7qRnMIcCvI6V6U3S1lDDXDQYx2ewJ6F/9wdlJk=
+github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
+github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
+github.com/breml/rootcerts v0.3.3 h1://GnaRtQ/9BY2+GtMk2wtWxVdCRysiaPr5/xBwl7NKw=
+github.com/breml/rootcerts v0.3.3/go.mod h1:S/PKh+4d1HUn4HQovEB8hPJZO6pUZYrIhmXBhsegfXw=
+github.com/bwesterb/go-ristretto v1.2.0/go.mod h1:fUIoIZaG73pV5biE2Blr2xEzDoMj7NFEuV9ekS419A0=
+github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
+github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/cloudflare/circl v1.1.0/go.mod h1:prBCrKB9DV4poKZY1l9zBXg2QJY7mvgRvtMxxK7fi4I=
+github.com/cloudflare/circl v1.6.1 h1:zqIqSPIndyBh1bjLVVDHMPpVKqp8Su/V+6MeDzzQBQ0=
+github.com/cloudflare/circl v1.6.1/go.mod h1:uddAzsPgqdMAYatqJ0lsjX1oECcQLIlRpzZh3pJrofs=
+github.com/cronokirby/saferith v0.33.0 h1:TgoQlfsD4LIwx71+ChfRcIpjkw+RPOapDEVxa+LhwLo=
+github.com/cronokirby/saferith v0.33.0/go.mod h1:QKJhjoqUtBsXCAVEjw38mFqoi7DebT7kthcD7UzbnoA=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/docker/go-units v0.3.3/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
-github.com/dvyukov/go-fuzz v0.0.0-20210103155950-6a8e9d1f2415/go.mod h1:11Gm+ccJnvAhCNLlf5+cS9KjtbaD5I5zaZpFMsTHWTw=
-github.com/emirpasic/gods v1.12.0/go.mod h1:YfzfFFoVP/catgzJb4IKIqXjX78Ha8FMSDh3ymbK86o=
-github.com/fatih/color v1.12.0/go.mod h1:ELkj/draVOlAH/xkhN6mQ50Qd0MPOk5AAr3maGEBuJM=
-github.com/fatih/color v1.13.0 h1:8LOYc1KYPPmyKMuN8QV2DNRWNbLo6LZ0iLs8+mlH53w=
-github.com/fatih/color v1.13.0/go.mod h1:kLAiJbzzSOZDVNGyDpeOxJ47H46qBXwg5ILebYFFOfk=
-github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568/go.mod h1:xEzjJPgXI435gkrCt3MPfRiAkVrwSbHsst4LCFVfpJc=
-github.com/gliderlabs/ssh v0.2.2/go.mod h1:U7qILu1NlMHj9FlMhZLlkCdDnU1DBEAqr0aevW3Awn0=
-github.com/globalsign/mgo v0.0.0-20180905125535-1ca0a4f7cbcb/go.mod h1:xkRDCp4j0OGD1HRkm4kmhM+pmpv3AKq5SU7GMg4oO/Q=
-github.com/go-openapi/analysis v0.0.0-20180825180245-b006789cd277/go.mod h1:k70tL6pCuVxPJOHXQ+wIac1FUrvNkHolPie/cLEU6hI=
-github.com/go-openapi/analysis v0.17.0/go.mod h1:IowGgpVeD0vNm45So8nr+IcQ3pxVtpRoBWb8PVZO0ik=
-github.com/go-openapi/errors v0.17.0/go.mod h1:LcZQpmvG4wyF5j4IhA73wkLFQg+QJXOQHVjmcZxhka0=
-github.com/go-openapi/errors v0.17.2/go.mod h1:LcZQpmvG4wyF5j4IhA73wkLFQg+QJXOQHVjmcZxhka0=
-github.com/go-openapi/jsonpointer v0.17.0/go.mod h1:cOnomiV+CVVwFLk0A/MExoFMjwdsUdVpsRhURCKh+3M=
-github.com/go-openapi/jsonreference v0.17.0/go.mod h1:g4xxGn04lDIRh0GJb5QlpE3HfopLOL6uZrK/VgnsK9I=
-github.com/go-openapi/loads v0.17.0/go.mod h1:72tmFy5wsWx89uEVddd0RjRWPZm92WRLhf7AC+0+OOU=
-github.com/go-openapi/runtime v0.0.0-20180920151709-4f900dc2ade9/go.mod h1:6v9a6LTXWQCdL8k1AO3cvqx5OtZY/Y9wKTgaoP6YRfA=
-github.com/go-openapi/runtime v0.17.2/go.mod h1:QO936ZXeisByFmZEO1IS1Dqhtf4QV1sYYFtIq6Ld86Q=
-github.com/go-openapi/spec v0.17.0/go.mod h1:XkF/MOi14NmjsfZ8VtAKf8pIlbZzyoTvZsdfssdxcBI=
-github.com/go-openapi/strfmt v0.17.0/go.mod h1:P82hnJI0CXkErkXi8IKjPbNBM6lV6+5pLP5l494TcyU=
-github.com/go-openapi/swag v0.17.0/go.mod h1:AByQ+nYG6gQg71GINrmuDXCPWdL640yX49/kXLo40Tg=
-github.com/go-openapi/validate v0.17.0/go.mod h1:Uh4HdOzKt19xGIGm1qHf/ofbX1YQ4Y+MYsct2VUrAJ4=
-github.com/go-ping/ping v0.0.0-20210911151512-381826476871 h1:wtjTfjwAR/BYYMJ+QOLI/3J/qGEI0fgrkZvgsEWK2/Q=
-github.com/go-ping/ping v0.0.0-20210911151512-381826476871/go.mod h1:xIFjORFzTxqIV/tDVGO4eDy/bLuSyawEeojSm3GfRGk=
-github.com/golang/mock v1.5.0/go.mod h1:CWnOUgYIOo4TcNZ0wHX3YZCqsaM1I1Jvs6v3mP3KVu8=
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 github.com/golang/mock v1.6.0 h1:ErTB+efbowRARo13NNdxyJji2egdxLGQhRaY+DUumQc=
 github.com/golang/mock v1.6.0/go.mod h1:p6yTPP+5HYm5mzsMV8JkE6ZKdX+/wYM6Hr+LicevLPs=
-github.com/gomodule/redigo v2.0.0+incompatible/go.mod h1:B4C85qUVwatsJoIUNIfCRsp7qO0iAmpGFZ4EELWSbC4=
-github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
-github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
-github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
-github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
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-github.com/mattn/go-colorable v0.1.9 h1:sqDoxXbdeALODt0DAeJCVp38ps9ZogZEAXjus69YV3U=
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-github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
-github.com/mattn/go-isatty v0.0.14 h1:yVuAays6BHfxijgZPzw+3Zlu5yQgKGP2/hcQbHb7S9Y=
-github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94=
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-github.com/mdlayher/genetlink v1.0.0 h1:OoHN1OdyEIkScEmRgxLEe2M9U8ClMytqA5niynLtfj0=
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 golang.org/x/tools v0.1.1/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
+golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
+golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
+golang.org/x/tools v0.38.0 h1:Hx2Xv8hISq8Lm16jvBZ2VQf+RLmbd7wVUsALibYI/IQ=
+golang.org/x/tools v0.38.0/go.mod h1:yEsQ/d/YK8cjh0L6rZlY8tgtlKiBNTL14pGDJPJpYQs=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.zx2c4.com/wireguard v0.0.0-20210427022245-097af6e1351b/go.mod h1:a057zjmoc00UN7gVkaJt2sXVK523kMJcogDTEvPIasg=
-golang.zx2c4.com/wireguard v0.0.0-20210805125648-3957e9b9dd19 h1:ab2jcw2W91Rz07eHAb8Lic7sFQKO0NhBftjv6m/gL/0=
-golang.zx2c4.com/wireguard v0.0.0-20210805125648-3957e9b9dd19/go.mod h1:laHzsbfMhGSobUmruXWAyMKKHSqvIcrqZJMyHD+/3O8=
-golang.zx2c4.com/wireguard/wgctrl v0.0.0-20210803171230-4253848d036c h1:ADNrRDI5NR23/TUCnEmlLZLt4u9DnZ2nwRkPrAcFvto=
-golang.zx2c4.com/wireguard/wgctrl v0.0.0-20210803171230-4253848d036c/go.mod h1:+1XihzyZUBJcSc5WO9SwNA7v26puQwOEDwanaxfNXPQ=
+golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2 h1:B82qJJgjvYKsXS9jeunTOisW56dUokqW/FOteYJJ/yg=
+golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2/go.mod h1:deeaetjYA+DHMHg+sMSMI58GrEteJUUzzw7en6TJQcI=
+golang.zx2c4.com/wireguard v0.0.0-20231211153847-12269c276173 h1:/jFs0duh4rdb8uIfPMv78iAJGcPKDeqAFnaLBropIC4=
+golang.zx2c4.com/wireguard v0.0.0-20231211153847-12269c276173/go.mod h1:tkCQ4FQXmpAgYVh++1cq16/dH4QJtmvpRv19DWGAHSA=
+golang.zx2c4.com/wireguard/wgctrl v0.0.0-20230429144221-925a1e7659e6 h1:CawjfCvYQH2OU3/TnxLx97WDSUDRABfT18pCOYwc2GE=
+golang.zx2c4.com/wireguard/wgctrl v0.0.0-20230429144221-925a1e7659e6/go.mod h1:3rxYc4HtVcSG9gVaTs2GEBdehh+sYPOwKtyUWEOTb80=
+google.golang.org/protobuf v1.35.1 h1:m3LfL6/Ca+fqnjnlqQXNpFPABW1UD7mjh8KO2mKFytA=
+google.golang.org/protobuf v1.35.1/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
-gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/src-d/go-billy.v4 v4.3.2/go.mod h1:nDjArDMp+XMs1aFAESLRjfGSgfvoYN0hDfzEk0GjC98=
-gopkg.in/src-d/go-git-fixtures.v3 v3.5.0/go.mod h1:dLBcvytrw/TYZsNTWCnkNF2DSIlzWYqTe3rJR56Ac7g=
-gopkg.in/src-d/go-git.v4 v4.13.1/go.mod h1:nx5NYcxdKxq5fpltdHnPa2Exj4Sx0EclMWZQbYDu2z8=
-gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI=
-gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
-gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-inet.af/netaddr v0.0.0-20210511181906-37180328850c/go.mod h1:z0nx+Dh+7N7CC8V5ayHtHGpZpxLQZZxkIaaz6HN65Ls=
-inet.af/netaddr v0.0.0-20210718074554-06ca8145d722 h1:Qws2rZnQudC58cIagVucPQDLmMi3kAXgxscsgD0v6DU=
-inet.af/netaddr v0.0.0-20210718074554-06ca8145d722/go.mod h1:z0nx+Dh+7N7CC8V5ayHtHGpZpxLQZZxkIaaz6HN65Ls=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
+gopkg.in/ini.v1 v1.67.0 h1:Dgnx+6+nfE+IfzjUEISNeydPJh9AXNNsWbGP9KzCsOA=
+gopkg.in/ini.v1 v1.67.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gvisor.dev/gvisor v0.0.0-20230927004350-cbd86285d259 h1:TbRPT0HtzFP3Cno1zZo7yPzEEnfu8EjLfl6IU9VfqkQ=
+gvisor.dev/gvisor v0.0.0-20230927004350-cbd86285d259/go.mod h1:AVgIgHMwK63XvmAzWG9vLQ41YnVHN0du0tEC46fI7yY=
+kernel.org/pub/linux/libs/security/libcap/cap v1.2.70 h1:QnLPkuDWWbD5C+3DUA2IUXai5TK6w2zff+MAGccqdsw=
+kernel.org/pub/linux/libs/security/libcap/cap v1.2.70/go.mod h1:/iBwcj9nbLejQitYvUm9caurITQ6WyNHibJk6Q9fiS4=
+kernel.org/pub/linux/libs/security/libcap/psx v1.2.70 h1:HsB2G/rEQiYyo1bGoQqHZ/Bvd6x1rERQTNdPr1FyWjI=
+kernel.org/pub/linux/libs/security/libcap/psx v1.2.70/go.mod h1:+l6Ee2F59XiJ2I6WR5ObpC1utCQJZ/VLsEbQCD8RG24=

internal/alpine/alpine.go

@@ -1,17 +1,9 @@
-// Package alpine defines a configurator to interact with the Alpine operating system.
 package alpine
 
 import (
 	"os/user"
 )
 
-var _ Alpiner = (*Alpine)(nil)
-
-type Alpiner interface {
-	UserCreater
-	VersionGetter
-}
-
 type Alpine struct {
 	alpineReleasePath string
 	passwdPath        string

internal/alpine/users.go

@@ -3,18 +3,13 @@ package alpine
 import (
 	"errors"
 	"fmt"
+	"io/fs"
 	"os"
 	"os/user"
 	"strconv"
 )
 
-var (
-	ErrUserAlreadyExists = errors.New("user already exists")
-)
-
-type UserCreater interface {
-	CreateUser(username string, uid int) (createdUsername string, err error)
-}
+var ErrUserAlreadyExists = errors.New("user already exists")
 
 // CreateUser creates a user in Alpine with the given UID.
 func (a *Alpine) CreateUser(username string, uid int) (createdUsername string, err error) {
@@ -43,7 +38,8 @@ func (a *Alpine) CreateUser(username string, uid int) (createdUsername string, e
 			ErrUserAlreadyExists, username, u.Uid, uid)
 	}
 
-	file, err := os.OpenFile(a.passwdPath, os.O_APPEND|os.O_WRONLY, 0644)
+	const permission = fs.FileMode(0o644)
+	file, err := os.OpenFile(a.passwdPath, os.O_APPEND|os.O_WRONLY, permission)
 	if err != nil {
 		return "", err
 	}

internal/alpine/version.go

@@ -7,11 +7,7 @@ import (
 	"strings"
 )
 
-type VersionGetter interface {
-	Version(ctx context.Context) (version string, err error)
-}
-
-func (a *Alpine) Version(ctx context.Context) (version string, err error) {
+func (a *Alpine) Version(context.Context) (version string, err error) {
 	file, err := os.OpenFile(a.alpineReleasePath, os.O_RDONLY, 0)
 	if err != nil {
 		return "", err

internal/cli/ci.go

@@ -2,6 +2,6 @@ package cli
 
 import "context"
 
-func (c *CLI) CI(context context.Context) error {
+func (c *CLI) CI(context.Context) error {
 	return nil
 }

internal/cli/cli.go

@@ -1,16 +1,5 @@
-// Package cli defines an interface CLI to run command line operations.
 package cli
 
-var _ CLIer = (*CLI)(nil)
-
-type CLIer interface {
-	ClientKeyFormatter
-	HealthChecker
-	OpenvpnConfigMaker
-	Updater
-	ServersFormatter
-}
-
 type CLI struct {
 	repoServersPath string
 }

internal/cli/clientkey.go

@@ -6,17 +6,12 @@ import (
 	"io"
 	"os"
 	"strings"
-
-	"github.com/qdm12/gluetun/internal/constants"
 )
 
-type ClientKeyFormatter interface {
-	ClientKey(args []string) error
-}
-
 func (c *CLI) ClientKey(args []string) error {
 	flagSet := flag.NewFlagSet("clientkey", flag.ExitOnError)
-	filepath := flagSet.String("path", constants.ClientKey, "file path to the client.key file")
+	const openVPNClientKeyPath = "/gluetun/client.key" // TODO deduplicate?
+	filepath := flagSet.String("path", openVPNClientKeyPath, "file path to the client.key file")
 	if err := flagSet.Parse(args); err != nil {
 		return err
 	}
@@ -32,9 +27,6 @@ func (c *CLI) ClientKey(args []string) error {
 	if err := file.Close(); err != nil {
 		return err
 	}
-	if err != nil {
-		return err
-	}
 	s := string(data)
 	s = strings.ReplaceAll(s, "\n", "")
 	s = strings.ReplaceAll(s, "\r", "")

internal/cli/formatservers.go

@@ -4,129 +4,109 @@ import (
 	"errors"
 	"flag"
 	"fmt"
+	"io/fs"
 	"os"
 	"path/filepath"
+	"strings"
 
 	"github.com/qdm12/gluetun/internal/constants"
+	"github.com/qdm12/gluetun/internal/constants/providers"
 	"github.com/qdm12/gluetun/internal/storage"
+	"golang.org/x/text/cases"
+	"golang.org/x/text/language"
 )
 
-type ServersFormatter interface {
-	FormatServers(args []string) error
-}
-
 var (
-	ErrFormatNotRecognized = errors.New("format is not recognized")
-	ErrProviderUnspecified = errors.New("VPN provider to format was not specified")
-	ErrOpenOutputFile      = errors.New("cannot open output file")
-	ErrWriteOutput         = errors.New("cannot write to output file")
-	ErrCloseOutputFile     = errors.New("cannot close output file")
+	ErrProviderUnspecified       = errors.New("VPN provider to format was not specified")
+	ErrMultipleProvidersToFormat = errors.New("more than one VPN provider to format were specified")
 )
 
+func addProviderFlag(flagSet *flag.FlagSet, providerToFormat map[string]*bool,
+	provider string, titleCaser cases.Caser,
+) {
+	boolPtr, ok := providerToFormat[provider]
+	if !ok {
+		panic(fmt.Sprintf("unknown provider in format map: %s", provider))
+	}
+	flagSet.BoolVar(boolPtr, provider, false, "Format "+titleCaser.String(provider)+" servers")
+}
+
 func (c *CLI) FormatServers(args []string) error {
 	var format, output string
-	var cyberghost, expressvpn, fastestvpn, hideMyAss, ipvanish, ivpn, mullvad,
-		nordvpn, perfectPrivacy, pia, privado, privatevpn, protonvpn, purevpn, surfshark,
-		torguard, vpnUnlimited, vyprvpn, wevpn, windscribe bool
-	flagSet := flag.NewFlagSet("markdown", flag.ExitOnError)
-	flagSet.StringVar(&format, "format", "markdown", "Format to use which can be: 'markdown'")
+	allProviders := providers.All()
+	allProviderFlags := make([]string, len(allProviders))
+	for i, provider := range allProviders {
+		allProviderFlags[i] = strings.ReplaceAll(provider, " ", "-")
+	}
+
+	providersToFormat := make(map[string]*bool, len(allProviders))
+	for _, provider := range allProviderFlags {
+		providersToFormat[provider] = new(bool)
+	}
+	flagSet := flag.NewFlagSet("format-servers", flag.ExitOnError)
+	flagSet.StringVar(&format, "format", "markdown", "Format to use which can be: 'markdown' or 'json'")
 	flagSet.StringVar(&output, "output", "/dev/stdout", "Output file to write the formatted data to")
-	flagSet.BoolVar(&cyberghost, "cyberghost", false, "Format Cyberghost servers")
-	flagSet.BoolVar(&expressvpn, "expressvpn", false, "Format ExpressVPN servers")
-	flagSet.BoolVar(&fastestvpn, "fastestvpn", false, "Format FastestVPN servers")
-	flagSet.BoolVar(&hideMyAss, "hidemyass", false, "Format HideMyAss servers")
-	flagSet.BoolVar(&ipvanish, "ipvanish", false, "Format IpVanish servers")
-	flagSet.BoolVar(&ivpn, "ivpn", false, "Format IVPN servers")
-	flagSet.BoolVar(&mullvad, "mullvad", false, "Format Mullvad servers")
-	flagSet.BoolVar(&nordvpn, "nordvpn", false, "Format Nordvpn servers")
-	flagSet.BoolVar(&perfectPrivacy, "perfectprivacy", false, "Format Perfect Privacy servers")
-	flagSet.BoolVar(&pia, "pia", false, "Format Private Internet Access servers")
-	flagSet.BoolVar(&privado, "privado", false, "Format Privado servers")
-	flagSet.BoolVar(&privatevpn, "privatevpn", false, "Format Private VPN servers")
-	flagSet.BoolVar(&protonvpn, "protonvpn", false, "Format Protonvpn servers")
-	flagSet.BoolVar(&purevpn, "purevpn", false, "Format Purevpn servers")
-	flagSet.BoolVar(&surfshark, "surfshark", false, "Format Surfshark servers")
-	flagSet.BoolVar(&torguard, "torguard", false, "Format Torguard servers")
-	flagSet.BoolVar(&vpnUnlimited, "vpnunlimited", false, "Format VPN Unlimited servers")
-	flagSet.BoolVar(&vyprvpn, "vyprvpn", false, "Format Vyprvpn servers")
-	flagSet.BoolVar(&wevpn, "wevpn", false, "Format WeVPN servers")
-	flagSet.BoolVar(&windscribe, "windscribe", false, "Format Windscribe servers")
+	titleCaser := cases.Title(language.English)
+	for _, provider := range allProviderFlags {
+		addProviderFlag(flagSet, providersToFormat, provider, titleCaser)
+	}
 	if err := flagSet.Parse(args); err != nil {
 		return err
 	}
 
-	if format != "markdown" {
-		return fmt.Errorf("%w: %s", ErrFormatNotRecognized, format)
+	// Note the format is validated by storage.Format
+
+	// Verify only one provider is set to be formatted.
+	var providers []string
+	for provider, formatPtr := range providersToFormat {
+		if *formatPtr {
+			providers = append(providers, provider)
+		}
+	}
+	switch len(providers) {
+	case 0:
+		return fmt.Errorf("%w", ErrProviderUnspecified)
+	case 1:
+	default:
+		return fmt.Errorf("%w: %d specified: %s",
+			ErrMultipleProvidersToFormat, len(providers),
+			strings.Join(providers, ", "))
+	}
+
+	var providerToFormat string
+	for _, providerToFormat = range allProviders {
+		if strings.ReplaceAll(providerToFormat, " ", "-") == providers[0] {
+			break
+		}
 	}
 
 	logger := newNoopLogger()
 	storage, err := storage.New(logger, constants.ServersData)
 	if err != nil {
-		return fmt.Errorf("%w: %s", ErrNewStorage, err)
+		return fmt.Errorf("creating servers storage: %w", err)
 	}
-	currentServers := storage.GetServers()
 
-	var formatted string
-	switch {
-	case cyberghost:
-		formatted = currentServers.Cyberghost.ToMarkdown()
-	case expressvpn:
-		formatted = currentServers.Expressvpn.ToMarkdown()
-	case fastestvpn:
-		formatted = currentServers.Fastestvpn.ToMarkdown()
-	case hideMyAss:
-		formatted = currentServers.HideMyAss.ToMarkdown()
-	case ipvanish:
-		formatted = currentServers.Ipvanish.ToMarkdown()
-	case ivpn:
-		formatted = currentServers.Ivpn.ToMarkdown()
-	case mullvad:
-		formatted = currentServers.Mullvad.ToMarkdown()
-	case nordvpn:
-		formatted = currentServers.Nordvpn.ToMarkdown()
-	case perfectPrivacy:
-		formatted = currentServers.Perfectprivacy.ToMarkdown()
-	case pia:
-		formatted = currentServers.Pia.ToMarkdown()
-	case privado:
-		formatted = currentServers.Privado.ToMarkdown()
-	case privatevpn:
-		formatted = currentServers.Privatevpn.ToMarkdown()
-	case protonvpn:
-		formatted = currentServers.Protonvpn.ToMarkdown()
-	case purevpn:
-		formatted = currentServers.Purevpn.ToMarkdown()
-	case surfshark:
-		formatted = currentServers.Surfshark.ToMarkdown()
-	case torguard:
-		formatted = currentServers.Torguard.ToMarkdown()
-	case vpnUnlimited:
-		formatted = currentServers.VPNUnlimited.ToMarkdown()
-	case vyprvpn:
-		formatted = currentServers.Vyprvpn.ToMarkdown()
-	case wevpn:
-		formatted = currentServers.Wevpn.ToMarkdown()
-	case windscribe:
-		formatted = currentServers.Windscribe.ToMarkdown()
-	default:
-		return ErrProviderUnspecified
+	formatted, err := storage.Format(providerToFormat, format)
+	if err != nil {
+		return fmt.Errorf("formatting servers: %w", err)
 	}
 
 	output = filepath.Clean(output)
-	file, err := os.OpenFile(output, os.O_TRUNC|os.O_WRONLY|os.O_CREATE, 0644)
+	const permission = fs.FileMode(0o644)
+	file, err := os.OpenFile(output, os.O_TRUNC|os.O_WRONLY|os.O_CREATE, permission)
 	if err != nil {
-		return fmt.Errorf("%w: %s", ErrOpenOutputFile, err)
+		return fmt.Errorf("opening output file: %w", err)
 	}
 
 	_, err = fmt.Fprint(file, formatted)
 	if err != nil {
 		_ = file.Close()
-		return fmt.Errorf("%w: %s", ErrWriteOutput, err)
+		return fmt.Errorf("writing to output file: %w", err)
 	}
 
 	err = file.Close()
 	if err != nil {
-		return fmt.Errorf("%w: %s", ErrCloseOutputFile, err)
+		return fmt.Errorf("closing output file: %w", err)
 	}
 
 	return nil

internal/cli/genkey.go

@@ -0,0 +1,66 @@
+package cli
+
+import (
+	"crypto/rand"
+	"flag"
+	"fmt"
+)
+
+func (c *CLI) GenKey(args []string) (err error) {
+	flagSet := flag.NewFlagSet("genkey", flag.ExitOnError)
+	err = flagSet.Parse(args)
+	if err != nil {
+		return fmt.Errorf("parsing flags: %w", err)
+	}
+
+	const keyLength = 128 / 8
+	keyBytes := make([]byte, keyLength)
+
+	_, _ = rand.Read(keyBytes)
+
+	key := base58Encode(keyBytes)
+	fmt.Println(key)
+
+	return nil
+}
+
+func base58Encode(data []byte) string {
+	const alphabet = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"
+	const radix = 58
+
+	zcount := 0
+	for zcount < len(data) && data[zcount] == 0 {
+		zcount++
+	}
+
+	// integer simplification of ceil(log(256)/log(58))
+	ceilLog256Div58 := (len(data)-zcount)*555/406 + 1 //nolint:mnd
+	size := zcount + ceilLog256Div58
+
+	output := make([]byte, size)
+
+	high := size - 1
+	for _, b := range data {
+		i := size - 1
+		for carry := uint32(b); i > high || carry != 0; i-- {
+			carry += 256 * uint32(output[i]) //nolint:mnd
+			output[i] = byte(carry % radix)
+			carry /= radix
+		}
+		high = i
+	}
+
+	// Determine the additional "zero-gap" in the output buffer
+	additionalZeroGapEnd := zcount
+	for additionalZeroGapEnd < size && output[additionalZeroGapEnd] == 0 {
+		additionalZeroGapEnd++
+	}
+
+	val := output[additionalZeroGapEnd-zcount:]
+	size = len(val)
+	for i := range val {
+		output[i] = alphabet[val[i]]
+	}
+
+	return string(output[:size])
+}

internal/cli/healthcheck.go

@@ -6,23 +6,26 @@ import (
 	"net/http"
 	"time"
 
-	"github.com/qdm12/gluetun/internal/configuration"
+	"github.com/qdm12/gluetun/internal/configuration/settings"
 	"github.com/qdm12/gluetun/internal/healthcheck"
-	"github.com/qdm12/golibs/params"
+	"github.com/qdm12/gosettings/reader"
 )
 
-type HealthChecker interface {
-	HealthCheck(ctx context.Context, env params.Interface, warner configuration.Warner) error
-}
-
-func (c *CLI) HealthCheck(ctx context.Context, env params.Interface,
-	warner configuration.Warner) error {
+func (c *CLI) HealthCheck(ctx context.Context, reader *reader.Reader, _ Warner) (err error) {
 	// Extract the health server port from the configuration.
-	config := configuration.Health{}
-	err := config.Read(env, warner)
+	var config settings.Health
+	err = config.Read(reader)
 	if err != nil {
 		return err
 	}
+
+	config.SetDefaults()
+
+	err = config.Validate()
+	if err != nil {
+		return err
+	}
+
 	_, port, err := net.SplitHostPort(config.ServerAddress)
 	if err != nil {
 		return err

internal/cli/interfaces.go

@@ -0,0 +1,9 @@
+package cli
+
+import "github.com/qdm12/gluetun/internal/configuration/settings"
+
+type Source interface {
+	Read() (settings settings.Settings, err error)
+	ReadHealth() (health settings.Health, err error)
+	String() string
+}

internal/cli/nooplogger.go

@@ -1,16 +1,9 @@
 package cli
 
-import "github.com/qdm12/golibs/logging"
-
 type noopLogger struct{}
 
 func newNoopLogger() *noopLogger {
 	return new(noopLogger)
 }
 
-func (l *noopLogger) Debug(s string)                 {}
-func (l *noopLogger) Info(s string)                  {}
-func (l *noopLogger) Warn(s string)                  {}
-func (l *noopLogger) Error(s string)                 {}
-func (l *noopLogger) PatchLevel(level logging.Level) {}
-func (l *noopLogger) PatchPrefix(prefix string)      {}
+func (l *noopLogger) Info(string) {}

internal/cli/openvpnconfig.go

@@ -1,48 +1,92 @@
 package cli
 
 import (
+	"context"
 	"fmt"
+	"net/http"
+	"net/netip"
 	"strings"
 	"time"
 
-	"github.com/qdm12/gluetun/internal/configuration"
+	"github.com/qdm12/gluetun/internal/configuration/settings"
 	"github.com/qdm12/gluetun/internal/constants"
+	"github.com/qdm12/gluetun/internal/models"
+	"github.com/qdm12/gluetun/internal/openvpn/extract"
 	"github.com/qdm12/gluetun/internal/provider"
 	"github.com/qdm12/gluetun/internal/storage"
-	"github.com/qdm12/golibs/params"
+	"github.com/qdm12/gluetun/internal/updater/resolver"
+	"github.com/qdm12/gosettings/reader"
 )
 
-type OpenvpnConfigMaker interface {
-	OpenvpnConfig(logger OpenvpnConfigLogger, env params.Interface) error
-}
-
 type OpenvpnConfigLogger interface {
 	Info(s string)
 	Warn(s string)
 }
 
-func (c *CLI) OpenvpnConfig(logger OpenvpnConfigLogger, env params.Interface) error {
+type Unzipper interface {
+	FetchAndExtract(ctx context.Context, url string) (
+		contents map[string][]byte, err error)
+}
+
+type ParallelResolver interface {
+	Resolve(ctx context.Context, settings resolver.ParallelSettings) (
+		hostToIPs map[string][]netip.Addr, warnings []string, err error)
+}
+
+type IPFetcher interface {
+	String() string
+	CanFetchAnyIP() bool
+	FetchInfo(ctx context.Context, ip netip.Addr) (data models.PublicIP, err error)
+}
+
+type IPv6Checker interface {
+	IsIPv6Supported() (supported bool, err error)
+}
+
+func (c *CLI) OpenvpnConfig(logger OpenvpnConfigLogger, reader *reader.Reader,
+	ipv6Checker IPv6Checker,
+) error {
 	storage, err := storage.New(logger, constants.ServersData)
 	if err != nil {
 		return err
 	}
-	allServers := storage.GetServers()
 
-	var allSettings configuration.Settings
-	err = allSettings.Read(env, allServers, logger)
+	var allSettings settings.Settings
+	err = allSettings.Read(reader, logger)
 	if err != nil {
 		return err
 	}
-	providerConf := provider.New(allSettings.VPN.Provider.Name, allServers, time.Now)
-	connection, err := providerConf.GetConnection(allSettings.VPN.Provider.ServerSelection)
-	if err != nil {
-		return err
-	}
-	lines, err := providerConf.BuildConf(connection, allSettings.VPN.OpenVPN)
+	allSettings.SetDefaults()
+
+	ipv6Supported, err := ipv6Checker.IsIPv6Supported()
+	if err != nil {
+		return fmt.Errorf("checking for IPv6 support: %w", err)
+	}
+
+	if err = allSettings.Validate(storage, ipv6Supported, logger); err != nil {
+		return fmt.Errorf("validating settings: %w", err)
+	}
+
+	// Unused by this CLI command
+	unzipper := (Unzipper)(nil)
+	client := (*http.Client)(nil)
+	warner := (Warner)(nil)
+	parallelResolver := (ParallelResolver)(nil)
+	ipFetcher := (IPFetcher)(nil)
+	openvpnFileExtractor := extract.New()
+
+	providers := provider.NewProviders(storage, time.Now, warner, client,
+		unzipper, parallelResolver, ipFetcher, openvpnFileExtractor, allSettings.Updater)
+	providerConf := providers.Get(allSettings.VPN.Provider.Name)
+	connection, err := providerConf.GetConnection(
+		allSettings.VPN.Provider.ServerSelection, ipv6Supported)
 	if err != nil {
 		return err
 	}
 
+	lines := providerConf.OpenVPNConfig(connection,
+		allSettings.VPN.OpenVPN, ipv6Supported)
+
 	fmt.Println(strings.Join(lines, "\n"))
 	return nil
 }

internal/cli/update.go

@@ -2,32 +2,33 @@ package cli
 
 import (
 	"context"
-	"encoding/json"
 	"errors"
 	"flag"
 	"fmt"
 	"net/http"
-	"os"
+	"slices"
+	"strings"
 	"time"
 
-	"github.com/qdm12/gluetun/internal/configuration"
+	"github.com/qdm12/gluetun/internal/configuration/settings"
 	"github.com/qdm12/gluetun/internal/constants"
-	"github.com/qdm12/gluetun/internal/models"
+	"github.com/qdm12/gluetun/internal/constants/providers"
+	"github.com/qdm12/gluetun/internal/openvpn/extract"
+	"github.com/qdm12/gluetun/internal/provider"
+	"github.com/qdm12/gluetun/internal/publicip/api"
 	"github.com/qdm12/gluetun/internal/storage"
 	"github.com/qdm12/gluetun/internal/updater"
+	"github.com/qdm12/gluetun/internal/updater/resolver"
+	"github.com/qdm12/gluetun/internal/updater/unzip"
 )
 
 var (
-	ErrModeUnspecified         = errors.New("at least one of -enduser or -maintainer must be specified")
-	ErrNewStorage              = errors.New("cannot create storage")
-	ErrUpdateServerInformation = errors.New("cannot update server information")
-	ErrWriteToFile             = errors.New("cannot write updated information to file")
+	ErrModeUnspecified     = errors.New("at least one of -enduser or -maintainer must be specified")
+	ErrNoProviderSpecified = errors.New("no provider was specified")
+	ErrUsernameMissing     = errors.New("username is required for this provider")
+	ErrPasswordMissing     = errors.New("password is required for this provider")
 )
 
-type Updater interface {
-	Update(ctx context.Context, args []string, logger UpdaterLogger) error
-}
-
 type UpdaterLogger interface {
 	Info(s string)
 	Warn(s string)
@@ -35,87 +36,88 @@ type UpdaterLogger interface {
 }
 
 func (c *CLI) Update(ctx context.Context, args []string, logger UpdaterLogger) error {
-	options := configuration.Updater{CLI: true}
+	options := settings.Updater{}
 	var endUserMode, maintainerMode, updateAll bool
+	var csvProviders, ipToken, protonUsername, protonPassword string
 	flagSet := flag.NewFlagSet("update", flag.ExitOnError)
 	flagSet.BoolVar(&endUserMode, "enduser", false, "Write results to /gluetun/servers.json (for end users)")
 	flagSet.BoolVar(&maintainerMode, "maintainer", false,
 		"Write results to ./internal/storage/servers.json to modify the program (for maintainers)")
 	flagSet.StringVar(&options.DNSAddress, "dns", "8.8.8.8", "DNS resolver address to use")
+	const defaultMinRatio = 0.8
+	flagSet.Float64Var(&options.MinRatio, "minratio", defaultMinRatio,
+		"Minimum ratio of servers to find for the update to succeed")
 	flagSet.BoolVar(&updateAll, "all", false, "Update servers for all VPN providers")
-	flagSet.BoolVar(&options.Cyberghost, "cyberghost", false, "Update Cyberghost servers")
-	flagSet.BoolVar(&options.Expressvpn, "expressvpn", false, "Update ExpressVPN servers")
-	flagSet.BoolVar(&options.Fastestvpn, "fastestvpn", false, "Update FastestVPN servers")
-	flagSet.BoolVar(&options.HideMyAss, "hidemyass", false, "Update HideMyAss servers")
-	flagSet.BoolVar(&options.Ipvanish, "ipvanish", false, "Update IpVanish servers")
-	flagSet.BoolVar(&options.Ivpn, "ivpn", false, "Update IVPN servers")
-	flagSet.BoolVar(&options.Mullvad, "mullvad", false, "Update Mullvad servers")
-	flagSet.BoolVar(&options.Nordvpn, "nordvpn", false, "Update Nordvpn servers")
-	flagSet.BoolVar(&options.Perfectprivacy, "perfectprivacy", false, "Update Perfect Privacy servers")
-	flagSet.BoolVar(&options.PIA, "pia", false, "Update Private Internet Access post-summer 2020 servers")
-	flagSet.BoolVar(&options.Privado, "privado", false, "Update Privado servers")
-	flagSet.BoolVar(&options.Privatevpn, "privatevpn", false, "Update Private VPN servers")
-	flagSet.BoolVar(&options.Protonvpn, "protonvpn", false, "Update Protonvpn servers")
-	flagSet.BoolVar(&options.Purevpn, "purevpn", false, "Update Purevpn servers")
-	flagSet.BoolVar(&options.Surfshark, "surfshark", false, "Update Surfshark servers")
-	flagSet.BoolVar(&options.Torguard, "torguard", false, "Update Torguard servers")
-	flagSet.BoolVar(&options.VPNUnlimited, "vpnunlimited", false, "Update VPN Unlimited servers")
-	flagSet.BoolVar(&options.Vyprvpn, "vyprvpn", false, "Update Vyprvpn servers")
-	flagSet.BoolVar(&options.Wevpn, "wevpn", false, "Update WeVPN servers")
-	flagSet.BoolVar(&options.Windscribe, "windscribe", false, "Update Windscribe servers")
+	flagSet.StringVar(&csvProviders, "providers", "", "CSV string of VPN providers to update server data for")
+	flagSet.StringVar(&ipToken, "ip-token", "", "IP data service token (e.g. ipinfo.io) to use")
+	flagSet.StringVar(&protonUsername, "proton-username", "", "Username to use to authenticate with Proton")
+	flagSet.StringVar(&protonPassword, "proton-password", "", "Password to use to authenticate with Proton")
 	if err := flagSet.Parse(args); err != nil {
 		return err
 	}
+
 	if !endUserMode && !maintainerMode {
-		return ErrModeUnspecified
+		return fmt.Errorf("%w", ErrModeUnspecified)
 	}
 
 	if updateAll {
-		options.EnableAll()
+		options.Providers = providers.All()
+	} else {
+		if csvProviders == "" {
+			return fmt.Errorf("%w", ErrNoProviderSpecified)
+		}
+		options.Providers = strings.Split(csvProviders, ",")
+	}
+
+	if slices.Contains(options.Providers, providers.Protonvpn) {
+		options.ProtonUsername = &protonUsername
+		options.ProtonPassword = &protonPassword
+	}
+
+	options.SetDefaults(options.Providers[0])
+
+	err := options.Validate()
+	if err != nil {
+		return fmt.Errorf("options validation failed: %w", err)
+	}
+
+	storage, err := storage.New(logger, constants.ServersData)
+	if err != nil {
+		return fmt.Errorf("creating servers storage: %w", err)
 	}
 
 	const clientTimeout = 10 * time.Second
 	httpClient := &http.Client{Timeout: clientTimeout}
-
-	storage, err := storage.New(logger, constants.ServersData)
-	if err != nil {
-		return fmt.Errorf("%w: %s", ErrNewStorage, err)
+	unzipper := unzip.New(httpClient)
+	parallelResolver := resolver.NewParallelResolver(options.DNSAddress)
+	nameTokenPairs := []api.NameToken{
+		{Name: string(api.IPInfo), Token: ipToken},
+		{Name: string(api.IP2Location)},
+		{Name: string(api.IfConfigCo)},
 	}
-	currentServers := storage.GetServers()
-
-	updater := updater.New(options, httpClient, currentServers, logger)
-	allServers, err := updater.UpdateServers(ctx)
+	fetchers, err := api.New(nameTokenPairs, httpClient)
 	if err != nil {
-		return fmt.Errorf("%w: %s", ErrUpdateServerInformation, err)
+		return fmt.Errorf("creating public IP fetchers: %w", err)
 	}
+	ipFetcher := api.NewResilient(fetchers, logger)
 
-	if endUserMode {
-		if err := storage.FlushToFile(allServers); err != nil {
-			return fmt.Errorf("%w: %s", ErrWriteToFile, err)
-		}
+	openvpnFileExtractor := extract.New()
+
+	providers := provider.NewProviders(storage, time.Now, logger, httpClient,
+		unzipper, parallelResolver, ipFetcher, openvpnFileExtractor, options)
+
+	updater := updater.New(httpClient, storage, providers, logger)
+	err = updater.UpdateServers(ctx, options.Providers, options.MinRatio)
+	if err != nil {
+		return fmt.Errorf("updating server information: %w", err)
 	}
 
 	if maintainerMode {
-		if err := writeToEmbeddedJSON(c.repoServersPath, allServers); err != nil {
-			return fmt.Errorf("%w: %s", ErrWriteToFile, err)
+		err := storage.FlushToFile(c.repoServersPath)
+		if err != nil {
+			return fmt.Errorf("writing servers data to embedded JSON file: %w", err)
 		}
 	}
 
 	return nil
 }
-
-func writeToEmbeddedJSON(repoServersPath string,
-	allServers models.AllServers) error {
-	const perms = 0600
-	f, err := os.OpenFile(repoServersPath,
-		os.O_TRUNC|os.O_WRONLY|os.O_CREATE, perms)
-	if err != nil {
-		return err
-	}
-
-	defer f.Close()
-
-	encoder := json.NewEncoder(f)
-	encoder.SetIndent("", "  ")
-	return encoder.Encode(allServers)
-}

internal/cli/warner.go

@@ -0,0 +1,5 @@
+package cli
+
+type Warner interface {
+	Warn(s string)
+}

internal/command/cmder.go

@@ -0,0 +1,8 @@
+package command
+
+// Cmder handles running subprograms synchronously and asynchronously.
+type Cmder struct{}
+
+func New() *Cmder {
+	return &Cmder{}
+}

internal/command/interfaces_local.go

@@ -0,0 +1,11 @@
+package command
+
+import "io"
+
+type execCmd interface {
+	CombinedOutput() ([]byte, error)
+	StdoutPipe() (io.ReadCloser, error)
+	StderrPipe() (io.ReadCloser, error)
+	Start() error
+	Wait() error
+}

internal/command/mocks_generate_test.go

@@ -0,0 +1,3 @@
+package command
+
+//go:generate mockgen -destination=mocks_local_test.go -package=$GOPACKAGE -source=interfaces_local.go

internal/command/mocks_local_test.go

@@ -0,0 +1,108 @@
+// Code generated by MockGen. DO NOT EDIT.
+// Source: interfaces_local.go
+
+// Package command is a generated GoMock package.
+package command
+
+import (
+	io "io"
+	reflect "reflect"
+
+	gomock "github.com/golang/mock/gomock"
+)
+
+// MockexecCmd is a mock of execCmd interface.
+type MockexecCmd struct {
+	ctrl     *gomock.Controller
+	recorder *MockexecCmdMockRecorder
+}
+
+// MockexecCmdMockRecorder is the mock recorder for MockexecCmd.
+type MockexecCmdMockRecorder struct {
+	mock *MockexecCmd
+}
+
+// NewMockexecCmd creates a new mock instance.
+func NewMockexecCmd(ctrl *gomock.Controller) *MockexecCmd {
+	mock := &MockexecCmd{ctrl: ctrl}
+	mock.recorder = &MockexecCmdMockRecorder{mock}
+	return mock
+}
+
+// EXPECT returns an object that allows the caller to indicate expected use.
+func (m *MockexecCmd) EXPECT() *MockexecCmdMockRecorder {
+	return m.recorder
+}
+
+// CombinedOutput mocks base method.
+func (m *MockexecCmd) CombinedOutput() ([]byte, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "CombinedOutput")
+	ret0, _ := ret[0].([]byte)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// CombinedOutput indicates an expected call of CombinedOutput.
+func (mr *MockexecCmdMockRecorder) CombinedOutput() *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "CombinedOutput", reflect.TypeOf((*MockexecCmd)(nil).CombinedOutput))
+}
+
+// Start mocks base method.
+func (m *MockexecCmd) Start() error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "Start")
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// Start indicates an expected call of Start.
+func (mr *MockexecCmdMockRecorder) Start() *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Start", reflect.TypeOf((*MockexecCmd)(nil).Start))
+}
+
+// StderrPipe mocks base method.
+func (m *MockexecCmd) StderrPipe() (io.ReadCloser, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "StderrPipe")
+	ret0, _ := ret[0].(io.ReadCloser)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// StderrPipe indicates an expected call of StderrPipe.
+func (mr *MockexecCmdMockRecorder) StderrPipe() *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "StderrPipe", reflect.TypeOf((*MockexecCmd)(nil).StderrPipe))
+}
+
+// StdoutPipe mocks base method.
+func (m *MockexecCmd) StdoutPipe() (io.ReadCloser, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "StdoutPipe")
+	ret0, _ := ret[0].(io.ReadCloser)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// StdoutPipe indicates an expected call of StdoutPipe.
+func (mr *MockexecCmdMockRecorder) StdoutPipe() *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "StdoutPipe", reflect.TypeOf((*MockexecCmd)(nil).StdoutPipe))
+}
+
+// Wait mocks base method.
+func (m *MockexecCmd) Wait() error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "Wait")
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// Wait indicates an expected call of Wait.
+func (mr *MockexecCmdMockRecorder) Wait() *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "Wait", reflect.TypeOf((*MockexecCmd)(nil).Wait))
+}

internal/command/run.go

@@ -0,0 +1,30 @@
+package command
+
+import (
+	"os/exec"
+	"strings"
+)
+
+// Run runs a command in a blocking manner, returning its output and
+// an error if it failed.
+func (c *Cmder) Run(cmd *exec.Cmd) (output string, err error) {
+	return run(cmd)
+}
+
+func run(cmd execCmd) (output string, err error) {
+	stdout, err := cmd.CombinedOutput()
+	output = string(stdout)
+	output = strings.TrimSuffix(output, "\n")
+	lines := stringToLines(output)
+	for i := range lines {
+		lines[i] = strings.TrimPrefix(lines[i], "'")
+		lines[i] = strings.TrimSuffix(lines[i], "'")
+	}
+	output = strings.Join(lines, "\n")
+	return output, err
+}
+
+func stringToLines(s string) (lines []string) {
+	s = strings.TrimSuffix(s, "\n")
+	return strings.Split(s, "\n")
+}

internal/command/run_test.go

@@ -0,0 +1,54 @@
+package command
+
+import (
+	"errors"
+	"testing"
+
+	gomock "github.com/golang/mock/gomock"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_run(t *testing.T) {
+	t.Parallel()
+
+	errDummy := errors.New("dummy")
+
+	testCases := map[string]struct {
+		stdout []byte
+		cmdErr error
+		output string
+		err    error
+	}{
+		"no output": {},
+		"cmd error": {
+			stdout: []byte("'hello \nworld'\n"),
+			cmdErr: errDummy,
+			output: "hello \nworld",
+			err:    errDummy,
+		},
+	}
+
+	for name, testCase := range testCases {
+		t.Run(name, func(t *testing.T) {
+			t.Parallel()
+
+			ctrl := gomock.NewController(t)
+
+			mockCmd := NewMockexecCmd(ctrl)
+
+			mockCmd.EXPECT().CombinedOutput().Return(testCase.stdout, testCase.cmdErr)
+
+			output, err := run(mockCmd)
+
+			if testCase.err != nil {
+				require.Error(t, err)
+				assert.Equal(t, testCase.err.Error(), err.Error())
+			} else {
+				assert.NoError(t, err)
+			}
+
+			assert.Equal(t, testCase.output, output)
+		})
+	}
+}

internal/command/split.go

@@ -0,0 +1,150 @@
+package command
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"strings"
+	"unicode/utf8"
+)
+
+var (
+	ErrCommandEmpty            = errors.New("command is empty")
+	ErrSingleQuoteUnterminated = errors.New("unterminated single-quoted string")
+	ErrDoubleQuoteUnterminated = errors.New("unterminated double-quoted string")
+	ErrEscapeUnterminated      = errors.New("unterminated backslash-escape")
+)
+
+// Split splits a command string into a slice of arguments.
+// This is especially important for commands such as:
+// /bin/sh -c "echo hello"
+// which should be split into: ["/bin/sh", "-c", "echo hello"]
+// It supports backslash-escapes, single-quotes and double-quotes.
+// It does not support:
+// - the $" quoting style.
+// - expansion (brace, shell or pathname).
+func Split(command string) (words []string, err error) {
+	if command == "" {
+		return nil, fmt.Errorf("%w", ErrCommandEmpty)
+	}
+
+	const bufferSize = 1024
+	buffer := bytes.NewBuffer(make([]byte, bufferSize))
+
+	startIndex := 0
+
+	for startIndex < len(command) {
+		// skip any split characters at the start
+		character, runeSize := utf8.DecodeRuneInString(command[startIndex:])
+		switch {
+		case strings.ContainsRune(" \n\t", character):
+			startIndex += runeSize
+		case character == '\\':
+			// Look ahead to eventually skip an escaped newline
+			if command[startIndex+runeSize:] == "" {
+				return nil, fmt.Errorf("%w: %q", ErrEscapeUnterminated, command)
+			}
+			character, runeSize := utf8.DecodeRuneInString(command[startIndex+runeSize:])
+			if character == '\n' {
+				startIndex += runeSize + runeSize // backslash and newline
+			}
+		default:
+			var word string
+			buffer.Reset()
+			word, startIndex, err = splitWord(command, startIndex, buffer)
+			if err != nil {
+				return nil, fmt.Errorf("splitting word in %q: %w", command, err)
+			}
+			words = append(words, word)
+		}
+	}
+	return words, nil
+}
+
+// WARNING: buffer must be cleared before calling this function.
+func splitWord(input string, startIndex int, buffer *bytes.Buffer) (
+	word string, newStartIndex int, err error,
+) {
+	cursor := startIndex
+	for cursor < len(input) {
+		character, runeLength := utf8.DecodeRuneInString(input[cursor:])
+		cursor += runeLength
+		if character == '"' ||
+			character == '\'' ||
+			character == '\\' ||
+			character == ' ' ||
+			character == '\n' ||
+			character == '\t' {
+			buffer.WriteString(input[startIndex : cursor-runeLength])
+		}
+
+		switch {
+		case strings.ContainsRune(" \n\t", character): // spacing character
+			return buffer.String(), cursor, nil
+		case character == '"':
+			return handleDoubleQuoted(input, cursor, buffer)
+		case character == '\'':
+			return handleSingleQuoted(input, cursor, buffer)
+		case character == '\\':
+			return handleEscaped(input, cursor, buffer)
+		}
+	}
+
+	buffer.WriteString(input[startIndex:])
+	return buffer.String(), len(input), nil
+}
+
+func handleDoubleQuoted(input string, startIndex int, buffer *bytes.Buffer) (
+	word string, newStartIndex int, err error,
+) {
+	cursor := startIndex
+	for cursor < len(input) {
+		nextCharacter, nextRuneLength := utf8.DecodeRuneInString(input[cursor:])
+		cursor += nextRuneLength
+		switch nextCharacter {
+		case '"': // end of the double quoted string
+			buffer.WriteString(input[startIndex : cursor-nextRuneLength])
+			return splitWord(input, cursor, buffer)
+		case '\\': // escaped character
+			escapedCharacter, escapedRuneLength := utf8.DecodeRuneInString(input[cursor:])
+			cursor += escapedRuneLength
+			if !strings.ContainsRune("$`\"\n\\", escapedCharacter) {
+				break
+			}
+			buffer.WriteString(input[startIndex : cursor-nextRuneLength-escapedRuneLength])
+			if escapedCharacter != '\n' {
+				// skip backslash entirely for the newline character
+				buffer.WriteRune(escapedCharacter)
+			}
+			startIndex = cursor
+		}
+	}
+	return "", 0, fmt.Errorf("%w", ErrDoubleQuoteUnterminated)
+}
+
+func handleSingleQuoted(input string, startIndex int, buffer *bytes.Buffer) (
+	word string, newStartIndex int, err error,
+) {
+	closingQuoteIndex := strings.IndexRune(input[startIndex:], '\'')
+	if closingQuoteIndex == -1 {
+		return "", 0, fmt.Errorf("%w", ErrSingleQuoteUnterminated)
+	}
+	buffer.WriteString(input[startIndex : startIndex+closingQuoteIndex])
+	const singleQuoteRuneLength = 1
+	startIndex += closingQuoteIndex + singleQuoteRuneLength
+	return splitWord(input, startIndex, buffer)
+}
+
+func handleEscaped(input string, startIndex int, buffer *bytes.Buffer) (
+	word string, newStartIndex int, err error,
+) {
+	if input[startIndex:] == "" {
+		return "", 0, fmt.Errorf("%w", ErrEscapeUnterminated)
+	}
+	character, runeLength := utf8.DecodeRuneInString(input[startIndex:])
+	if character != '\n' { // backslash-escaped newline is ignored
+		buffer.WriteString(input[startIndex : startIndex+runeLength])
+	}
+	startIndex += runeLength
+	return splitWord(input, startIndex, buffer)
+}

internal/command/split_test.go

@@ -0,0 +1,110 @@
+package command
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func Test_Split(t *testing.T) {
+	t.Parallel()
+
+	testCases := map[string]struct {
+		command    string
+		words      []string
+		errWrapped error
+		errMessage string
+	}{
+		"empty": {
+			command:    "",
+			errWrapped: ErrCommandEmpty,
+			errMessage: "command is empty",
+		},
+		"concrete_sh_command": {
+			command: `/bin/sh -c "echo 123"`,
+			words:   []string{"/bin/sh", "-c", "echo 123"},
+		},
+		"single_word": {
+			command: "word1",
+			words:   []string{"word1"},
+		},
+		"two_words_single_space": {
+			command: "word1 word2",
+			words:   []string{"word1", "word2"},
+		},
+		"two_words_multiple_space": {
+			command: "word1    word2",
+			words:   []string{"word1", "word2"},
+		},
+		"two_words_no_expansion": {
+			command: "word1*    word2?",
+			words:   []string{"word1*", "word2?"},
+		},
+		"escaped_single quote": {
+			command: "ain\\'t good",
+			words:   []string{"ain't", "good"},
+		},
+		"escaped_single_quote_all_single_quoted": {
+			command: "'ain'\\''t good'",
+			words:   []string{"ain't good"},
+		},
+		"empty_single_quoted": {
+			command: "word1 ''  word2",
+			words:   []string{"word1", "", "word2"},
+		},
+		"escaped_newline": {
+			command: "word1\\\nword2",
+			words:   []string{"word1word2"},
+		},
+		"quoted_newline": {
+			command: "text \"with\na\" quoted newline",
+			words:   []string{"text", "with\na", "quoted", "newline"},
+		},
+		"quoted_escaped_newline": {
+			command: "\"word1\\d\\\\\\\" word2\\\nword3 word4\"",
+			words:   []string{"word1\\d\\\" word2word3 word4"},
+		},
+		"escaped_separated_newline": {
+			command: "word1 \\\n word2",
+			words:   []string{"word1", "word2"},
+		},
+		"double_quotes_no_spacing": {
+			command: "word1\"word2\"word3",
+			words:   []string{"word1word2word3"},
+		},
+		"unterminated_single_quote": {
+			command:    "'abc'\\''def",
+			errWrapped: ErrSingleQuoteUnterminated,
+			errMessage: `splitting word in "'abc'\\''def": unterminated single-quoted string`,
+		},
+		"unterminated_double_quote": {
+			command:    "\"abc'def",
+			errWrapped: ErrDoubleQuoteUnterminated,
+			errMessage: `splitting word in "\"abc'def": unterminated double-quoted string`,
+		},
+		"unterminated_escape": {
+			command:    "abc\\",
+			errWrapped: ErrEscapeUnterminated,
+			errMessage: `splitting word in "abc\\": unterminated backslash-escape`,
+		},
+		"unterminated_escape_only": {
+			command:    "   \\",
+			errWrapped: ErrEscapeUnterminated,
+			errMessage: `unterminated backslash-escape: "   \\"`,
+		},
+	}
+
+	for name, testCase := range testCases {
+		t.Run(name, func(t *testing.T) {
+			t.Parallel()
+
+			words, err := Split(testCase.command)
+
+			assert.Equal(t, testCase.words, words)
+			assert.ErrorIs(t, err, testCase.errWrapped)
+			if testCase.errWrapped != nil {
+				assert.EqualError(t, err, testCase.errMessage)
+			}
+		})
+	}
+}

internal/command/start.go

@@ -0,0 +1,100 @@
+package command
+
+import (
+	"bufio"
+	"errors"
+	"io"
+	"os"
+	"os/exec"
+)
+
+// Start launches a command and streams stdout and stderr to channels.
+// All the channels returned are ready only and won't be closed
+// if the command fails later.
+func (c *Cmder) Start(cmd *exec.Cmd) (
+	stdoutLines, stderrLines <-chan string,
+	waitError <-chan error, startErr error,
+) {
+	return start(cmd)
+}
+
+func start(cmd execCmd) (stdoutLines, stderrLines <-chan string,
+	waitError <-chan error, startErr error,
+) {
+	stop := make(chan struct{})
+	stdoutReady := make(chan struct{})
+	stdoutLinesCh := make(chan string)
+	stdoutDone := make(chan struct{})
+	stderrReady := make(chan struct{})
+	stderrLinesCh := make(chan string)
+	stderrDone := make(chan struct{})
+
+	stdout, err := cmd.StdoutPipe()
+	if err != nil {
+		return nil, nil, nil, err
+	}
+	go streamToChannel(stdoutReady, stop, stdoutDone, stdout, stdoutLinesCh)
+
+	stderr, err := cmd.StderrPipe()
+	if err != nil {
+		_ = stdout.Close()
+		close(stop)
+		<-stdoutDone
+		return nil, nil, nil, err
+	}
+	go streamToChannel(stderrReady, stop, stderrDone, stderr, stderrLinesCh)
+
+	err = cmd.Start()
+	if err != nil {
+		_ = stdout.Close()
+		_ = stderr.Close()
+		close(stop)
+		<-stdoutDone
+		<-stderrDone
+		return nil, nil, nil, err
+	}
+
+	waitErrorCh := make(chan error)
+	go func() {
+		err := cmd.Wait()
+		_ = stdout.Close()
+		_ = stderr.Close()
+		close(stop)
+		<-stdoutDone
+		<-stderrDone
+		waitErrorCh <- err
+	}()
+
+	return stdoutLinesCh, stderrLinesCh, waitErrorCh, nil
+}
+
+func streamToChannel(ready chan<- struct{},
+	stop <-chan struct{}, done chan<- struct{},
+	stream io.Reader, lines chan<- string,
+) {
+	defer close(done)
+	close(ready)
+	scanner := bufio.NewScanner(stream)
+	lineBuffer := make([]byte, bufio.MaxScanTokenSize) // 64KB
+	const maxCapacity = 20 * 1024 * 1024               // 20MB
+	scanner.Buffer(lineBuffer, maxCapacity)
+
+	for scanner.Scan() {
+		// scanner is closed if the context is canceled
+		// or if the command failed starting because the
+		// stream is closed (io.EOF error).
+		lines <- scanner.Text()
+	}
+	err := scanner.Err()
+	if err == nil || errors.Is(err, os.ErrClosed) {
+		return
+	}
+
+	// ignore the error if it is stopped.
+	select {
+	case <-stop:
+		return
+	default:
+		lines <- "stream error: " + err.Error()
+	}
+}

internal/command/start_test.go

@@ -0,0 +1,118 @@
+package command
+
+import (
+	"bytes"
+	"errors"
+	"io"
+	"strings"
+	"testing"
+
+	gomock "github.com/golang/mock/gomock"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func linesToReadCloser(lines []string) io.ReadCloser {
+	s := strings.Join(lines, "\n")
+	return io.NopCloser(bytes.NewBufferString(s))
+}
+
+func Test_start(t *testing.T) {
+	t.Parallel()
+
+	errDummy := errors.New("dummy")
+
+	testCases := map[string]struct {
+		stdout        []string
+		stdoutPipeErr error
+		stderr        []string
+		stderrPipeErr error
+		startErr      error
+		waitErr       error
+		err           error
+	}{
+		"no output": {},
+		"success": {
+			stdout: []string{"hello", "world"},
+			stderr: []string{"some", "error"},
+		},
+		"stdout pipe error": {
+			stdoutPipeErr: errDummy,
+			err:           errDummy,
+		},
+		"stderr pipe error": {
+			stderrPipeErr: errDummy,
+			err:           errDummy,
+		},
+		"start error": {
+			startErr: errDummy,
+			err:      errDummy,
+		},
+		"wait error": {
+			waitErr: errDummy,
+		},
+	}
+
+	for name, testCase := range testCases {
+		t.Run(name, func(t *testing.T) {
+			t.Parallel()
+
+			ctrl := gomock.NewController(t)
+
+			stdout := linesToReadCloser(testCase.stdout)
+			stderr := linesToReadCloser(testCase.stderr)
+
+			mockCmd := NewMockexecCmd(ctrl)
+
+			mockCmd.EXPECT().StdoutPipe().
+				Return(stdout, testCase.stdoutPipeErr)
+			if testCase.stdoutPipeErr == nil {
+				mockCmd.EXPECT().StderrPipe().Return(stderr, testCase.stderrPipeErr)
+				if testCase.stderrPipeErr == nil {
+					mockCmd.EXPECT().Start().Return(testCase.startErr)
+					if testCase.startErr == nil {
+						mockCmd.EXPECT().Wait().Return(testCase.waitErr)
+					}
+				}
+			}
+
+			stdoutLines, stderrLines, waitError, err := start(mockCmd)
+
+			if testCase.err != nil {
+				require.Error(t, err)
+				assert.Equal(t, testCase.err.Error(), err.Error())
+				assert.Nil(t, stdoutLines)
+				assert.Nil(t, stderrLines)
+				assert.Nil(t, waitError)
+				return
+			}
+
+			require.NoError(t, err)
+
+			var stdoutIndex, stderrIndex int
+
+			done := false
+			for !done {
+				select {
+				case line := <-stdoutLines:
+					assert.Equal(t, testCase.stdout[stdoutIndex], line)
+					stdoutIndex++
+				case line := <-stderrLines:
+					assert.Equal(t, testCase.stderr[stderrIndex], line)
+					stderrIndex++
+				case err := <-waitError:
+					if testCase.waitErr != nil {
+						require.Error(t, err)
+						assert.Equal(t, testCase.waitErr.Error(), err.Error())
+					} else {
+						assert.NoError(t, err)
+					}
+					done = true
+				}
+			}
+
+			assert.Equal(t, len(testCase.stdout), stdoutIndex)
+			assert.Equal(t, len(testCase.stderr), stderrIndex)
+		})
+	}
+}

internal/configuration/configuration.go

@@ -1,3 +0,0 @@
-// Package configuration reads initial settings from environment variables
-// and secret files.
-package configuration

internal/configuration/constants.go

@@ -1,6 +0,0 @@
-package configuration
-
-const (
-	lastIndent = "|--"
-	indent     = "   "
-)

internal/configuration/custom.go

@@ -1,95 +0,0 @@
-package configuration
-
-import (
-	"errors"
-	"fmt"
-	"net"
-
-	"github.com/qdm12/gluetun/internal/constants"
-	"github.com/qdm12/golibs/params"
-)
-
-var (
-	errCustomNotSupported    = errors.New("custom provider is not supported")
-	errCustomExtractFromFile = errors.New("cannot extract configuration from file")
-)
-
-func (settings *Provider) readCustom(r reader, vpnType string) (err error) {
-	settings.Name = constants.Custom
-
-	switch vpnType {
-	case constants.OpenVPN:
-		return settings.ServerSelection.OpenVPN.readCustom(r)
-	case constants.Wireguard:
-		return settings.ServerSelection.Wireguard.readCustom(r)
-	default:
-		return fmt.Errorf("%w: for VPN type %s", errCustomNotSupported, vpnType)
-	}
-}
-
-func (settings *OpenVPNSelection) readCustom(r reader) (err error) {
-	configFile, err := r.env.Get("OPENVPN_CUSTOM_CONFIG", params.CaseSensitiveValue(), params.Compulsory())
-	if err != nil {
-		return fmt.Errorf("environment variable OPENVPN_CUSTOM_CONFIG: %w", err)
-	}
-	settings.ConfFile = configFile
-
-	// For display and consistency purposes only,
-	// these values are not actually used since the file is re-read
-	// before each OpenVPN start.
-	_, connection, err := r.ovpnExt.Data(configFile)
-	if err != nil {
-		return fmt.Errorf("%w: %s", errCustomExtractFromFile, err)
-	}
-	settings.TCP = connection.Protocol == constants.TCP
-
-	return nil
-}
-
-func (settings *OpenVPN) readCustom(r reader) (err error) {
-	settings.ConfFile, err = r.env.Path("OPENVPN_CUSTOM_CONFIG",
-		params.Compulsory(), params.CaseSensitiveValue())
-	if err != nil {
-		return fmt.Errorf("environment variable OPENVPN_CUSTOM_CONFIG: %w", err)
-	}
-
-	return nil
-}
-
-func (settings *WireguardSelection) readCustom(r reader) (err error) {
-	settings.PublicKey, err = r.env.Get("WIREGUARD_PUBLIC_KEY",
-		params.CaseSensitiveValue(), params.Compulsory())
-	if err != nil {
-		return fmt.Errorf("environment variable WIREGUARD_PUBLIC_KEY: %w", err)
-	}
-
-	settings.EndpointIP, err = readWireguardEndpointIP(r.env)
-	if err != nil {
-		return err
-	}
-
-	settings.EndpointPort, err = r.env.Port("WIREGUARD_ENDPOINT_PORT", params.Compulsory(),
-		params.RetroKeys([]string{"WIREGUARD_PORT"}, r.onRetroActive))
-	if err != nil {
-		return fmt.Errorf("environment variable WIREGUARD_ENDPOINT_PORT: %w", err)
-	}
-
-	return nil
-}
-
-// readWireguardEndpointIP reads and parses the server endpoint IP
-// address from the environment variable WIREGUARD_ENDPOINT_IP.
-func readWireguardEndpointIP(env params.Interface) (endpointIP net.IP, err error) {
-	s, err := env.Get("WIREGUARD_ENDPOINT_IP", params.Compulsory())
-	if err != nil {
-		return nil, fmt.Errorf("environment variable WIREGUARD_ENDPOINT_IP: %w", err)
-	}
-
-	endpointIP = net.ParseIP(s)
-	if endpointIP == nil {
-		return nil, fmt.Errorf("environment variable WIREGUARD_ENDPOINT_IP: %w: %s",
-			ErrInvalidIP, s)
-	}
-
-	return endpointIP, nil
-}

internal/configuration/cyberghost.go

@@ -1,47 +0,0 @@
-package configuration
-
-import (
-	"fmt"
-
-	"github.com/qdm12/gluetun/internal/constants"
-	"github.com/qdm12/golibs/params"
-)
-
-func (settings *Provider) readCyberghost(r reader) (err error) {
-	settings.Name = constants.Cyberghost
-	servers := r.servers.GetCyberghost()
-
-	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
-	if err != nil {
-		return err
-	}
-
-	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY",
-		constants.CyberghostCountryChoices(servers),
-		params.RetroKeys([]string{"REGION"}, r.onRetroActive))
-	if err != nil {
-		return fmt.Errorf("environment variable COUNTRY: %w", err)
-	}
-
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME",
-		constants.CyberghostHostnameChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
-	}
-
-	return settings.ServerSelection.OpenVPN.readProtocolAndPort(r)
-}
-
-func (settings *OpenVPN) readCyberghost(r reader) (err error) {
-	settings.ClientKey, err = readClientKey(r)
-	if err != nil {
-		return fmt.Errorf("%w: %s", errClientKey, err)
-	}
-
-	settings.ClientCrt, err = readClientCertificate(r)
-	if err != nil {
-		return fmt.Errorf("%w: %s", errClientCert, err)
-	}
-
-	return nil
-}

internal/configuration/dns.go

@@ -1,117 +0,0 @@
-package configuration
-
-import (
-	"errors"
-	"fmt"
-	"net"
-	"strings"
-	"time"
-
-	"github.com/qdm12/dns/pkg/blacklist"
-	"github.com/qdm12/dns/pkg/unbound"
-	"github.com/qdm12/golibs/params"
-)
-
-// DNS contains settings to configure Unbound for DNS over TLS operation.
-type DNS struct { //nolint:maligned
-	Enabled          bool
-	PlaintextAddress net.IP
-	KeepNameserver   bool
-	UpdatePeriod     time.Duration
-	Unbound          unbound.Settings
-	BlacklistBuild   blacklist.BuilderSettings
-}
-
-func (settings *DNS) String() string {
-	return strings.Join(settings.lines(), "\n")
-}
-
-func (settings *DNS) lines() (lines []string) {
-	lines = append(lines, lastIndent+"DNS:")
-
-	if settings.PlaintextAddress != nil {
-		lines = append(lines, indent+lastIndent+"Plaintext address: "+settings.PlaintextAddress.String())
-	}
-
-	if settings.KeepNameserver {
-		lines = append(lines, indent+lastIndent+"Keep nameserver (disabled blocking): yes")
-	}
-
-	if !settings.Enabled {
-		return lines
-	}
-
-	lines = append(lines, indent+lastIndent+"DNS over TLS:")
-
-	lines = append(lines, indent+indent+lastIndent+"Unbound:")
-	for _, line := range settings.Unbound.Lines() {
-		lines = append(lines, indent+indent+indent+line)
-	}
-
-	lines = append(lines, indent+indent+lastIndent+"Blacklist:")
-	for _, line := range settings.BlacklistBuild.Lines(indent, lastIndent) {
-		lines = append(lines, indent+indent+indent+line)
-	}
-
-	if settings.UpdatePeriod > 0 {
-		lines = append(lines, indent+indent+lastIndent+"Update: every "+settings.UpdatePeriod.String())
-	}
-
-	return lines
-}
-
-var (
-	ErrUnboundSettings   = errors.New("failed getting Unbound settings")
-	ErrBlacklistSettings = errors.New("failed getting DNS blacklist settings")
-)
-
-func (settings *DNS) read(r reader) (err error) {
-	settings.Enabled, err = r.env.OnOff("DOT", params.Default("on"))
-	if err != nil {
-		return fmt.Errorf("environment variable DOT: %w", err)
-	}
-
-	// Plain DNS settings
-	if err := settings.readDNSPlaintext(r.env); err != nil {
-		return err
-	}
-	settings.KeepNameserver, err = r.env.OnOff("DNS_KEEP_NAMESERVER", params.Default("off"))
-	if err != nil {
-		return fmt.Errorf("environment variable DNS_KEEP_NAMESERVER: %w", err)
-	}
-
-	// DNS over TLS external settings
-	if err := settings.readBlacklistBuilding(r); err != nil {
-		return fmt.Errorf("%w: %s", ErrBlacklistSettings, err)
-	}
-
-	settings.UpdatePeriod, err = r.env.Duration("DNS_UPDATE_PERIOD", params.Default("24h"))
-	if err != nil {
-		return fmt.Errorf("environment variable DNS_UPDATE_PERIOD: %w", err)
-	}
-
-	// Unbound settings
-	if err := settings.readUnbound(r); err != nil {
-		return fmt.Errorf("%w: %s", ErrUnboundSettings, err)
-	}
-
-	return nil
-}
-
-var (
-	ErrDNSAddressNotAnIP = errors.New("DNS plaintext address is not an IP address")
-)
-
-func (settings *DNS) readDNSPlaintext(env params.Interface) error {
-	s, err := env.Get("DNS_PLAINTEXT_ADDRESS", params.Default("1.1.1.1"))
-	if err != nil {
-		return fmt.Errorf("environment variable DNS_PLAINTEXT_ADDRESS: %w", err)
-	}
-
-	settings.PlaintextAddress = net.ParseIP(s)
-	if settings.PlaintextAddress == nil {
-		return fmt.Errorf("%w: %s", ErrDNSAddressNotAnIP, s)
-	}
-
-	return nil
-}

internal/configuration/dns_test.go

@@ -1,76 +0,0 @@
-package configuration
-
-import (
-	"net"
-	"testing"
-	"time"
-
-	"github.com/qdm12/dns/pkg/blacklist"
-	"github.com/qdm12/dns/pkg/provider"
-	"github.com/qdm12/dns/pkg/unbound"
-	"github.com/stretchr/testify/assert"
-)
-
-func Test_DNS_Lines(t *testing.T) {
-	t.Parallel()
-	testCases := map[string]struct {
-		settings DNS
-		lines    []string
-	}{
-		"disabled DOT": {
-			settings: DNS{
-				PlaintextAddress: net.IP{1, 1, 1, 1},
-			},
-			lines: []string{
-				"|--DNS:",
-				"   |--Plaintext address: 1.1.1.1",
-			},
-		},
-		"enabled DOT": {
-			settings: DNS{
-				Enabled:        true,
-				KeepNameserver: true,
-				Unbound: unbound.Settings{
-					Providers: []provider.Provider{
-						provider.Cloudflare(),
-					},
-				},
-				BlacklistBuild: blacklist.BuilderSettings{
-					BlockMalicious:    true,
-					BlockAds:          true,
-					BlockSurveillance: true,
-				},
-				UpdatePeriod: time.Hour,
-			},
-			lines: []string{
-				"|--DNS:",
-				"   |--Keep nameserver (disabled blocking): yes",
-				"   |--DNS over TLS:",
-				"      |--Unbound:",
-				"          |--DNS over TLS providers:",
-				"              |--Cloudflare",
-				"          |--Listening port: 0",
-				"          |--Access control:",
-				"              |--Allowed:",
-				"          |--Caching: disabled",
-				"          |--IPv4 resolution: disabled",
-				"          |--IPv6 resolution: disabled",
-				"          |--Verbosity level: 0/5",
-				"          |--Verbosity details level: 0/4",
-				"          |--Validation log level: 0/2",
-				"          |--Username: ",
-				"      |--Blacklist:",
-				"         |--Blocked categories: malicious, surveillance, ads",
-				"      |--Update: every 1h0m0s",
-			},
-		},
-	}
-	for name, testCase := range testCases {
-		testCase := testCase
-		t.Run(name, func(t *testing.T) {
-			t.Parallel()
-			lines := testCase.settings.lines()
-			assert.Equal(t, testCase.lines, lines)
-		})
-	}
-}

internal/configuration/dnsblacklist.go

@@ -1,87 +0,0 @@
-package configuration
-
-import (
-	"errors"
-	"fmt"
-
-	"github.com/qdm12/golibs/params"
-	"inet.af/netaddr"
-)
-
-func (settings *DNS) readBlacklistBuilding(r reader) (err error) {
-	settings.BlacklistBuild.BlockMalicious, err = r.env.OnOff("BLOCK_MALICIOUS", params.Default("on"))
-	if err != nil {
-		return fmt.Errorf("environment variable BLOCK_MALICIOUS: %w", err)
-	}
-
-	settings.BlacklistBuild.BlockSurveillance, err = r.env.OnOff("BLOCK_SURVEILLANCE", params.Default("on"),
-		params.RetroKeys([]string{"BLOCK_NSA"}, r.onRetroActive))
-	if err != nil {
-		return fmt.Errorf("environment variable BLOCK_SURVEILLANCE (or BLOCK_NSA): %w", err)
-	}
-
-	settings.BlacklistBuild.BlockAds, err = r.env.OnOff("BLOCK_ADS", params.Default("off"))
-	if err != nil {
-		return fmt.Errorf("environment variable BLOCK_ADS: %w", err)
-	}
-
-	if err := settings.readPrivateAddresses(r.env); err != nil {
-		return err
-	}
-
-	return settings.readBlacklistUnblockedHostnames(r)
-}
-
-var (
-	ErrInvalidPrivateAddress = errors.New("private address is not a valid IP or CIDR range")
-)
-
-func (settings *DNS) readPrivateAddresses(env params.Interface) (err error) {
-	privateAddresses, err := env.CSV("DOT_PRIVATE_ADDRESS")
-	if err != nil {
-		return fmt.Errorf("environment variable DOT_PRIVATE_ADDRESS: %w", err)
-	} else if len(privateAddresses) == 0 {
-		return nil
-	}
-
-	ips := make([]netaddr.IP, 0, len(privateAddresses))
-	ipPrefixes := make([]netaddr.IPPrefix, 0, len(privateAddresses))
-
-	for _, address := range privateAddresses {
-		ip, err := netaddr.ParseIP(address)
-		if err == nil {
-			ips = append(ips, ip)
-			continue
-		}
-
-		ipPrefix, err := netaddr.ParseIPPrefix(address)
-		if err == nil {
-			ipPrefixes = append(ipPrefixes, ipPrefix)
-			continue
-		}
-
-		return fmt.Errorf("%w: %s", ErrInvalidPrivateAddress, address)
-	}
-
-	settings.BlacklistBuild.AddBlockedIPs = append(settings.BlacklistBuild.AddBlockedIPs, ips...)
-	settings.BlacklistBuild.AddBlockedIPPrefixes = append(settings.BlacklistBuild.AddBlockedIPPrefixes, ipPrefixes...)
-
-	return nil
-}
-
-func (settings *DNS) readBlacklistUnblockedHostnames(r reader) (err error) {
-	hostnames, err := r.env.CSV("UNBLOCK")
-	if err != nil {
-		return fmt.Errorf("environment variable UNBLOCK: %w", err)
-	} else if len(hostnames) == 0 {
-		return nil
-	}
-	for _, hostname := range hostnames {
-		if !r.regex.MatchHostname(hostname) {
-			return fmt.Errorf("%w: %s", ErrInvalidHostname, hostname)
-		}
-	}
-
-	settings.BlacklistBuild.AllowedHosts = append(settings.BlacklistBuild.AllowedHosts, hostnames...)
-	return nil
-}

internal/configuration/expressvpn.go

@@ -1,40 +0,0 @@
-package configuration
-
-import (
-	"fmt"
-
-	"github.com/qdm12/gluetun/internal/constants"
-)
-
-func (settings *Provider) readExpressvpn(r reader) (err error) {
-	settings.Name = constants.Expressvpn
-	servers := r.servers.GetExpressvpn()
-
-	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
-	if err != nil {
-		return err
-	}
-
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME",
-		constants.ExpressvpnHostnameChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
-	}
-
-	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.ExpressvpnCountriesChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable COUNTRY: %w", err)
-	}
-
-	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.ExpressvpnCityChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable CITY: %w", err)
-	}
-
-	settings.ServerSelection.OpenVPN.TCP, err = readOpenVPNProtocol(r)
-	if err != nil {
-		return err
-	}
-
-	return nil
-}

internal/configuration/fastestvpn.go

@@ -1,30 +0,0 @@
-package configuration
-
-import (
-	"fmt"
-
-	"github.com/qdm12/gluetun/internal/constants"
-)
-
-func (settings *Provider) readFastestvpn(r reader) (err error) {
-	settings.Name = constants.Fastestvpn
-	servers := r.servers.GetFastestvpn()
-
-	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
-	if err != nil {
-		return err
-	}
-
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME",
-		constants.FastestvpnHostnameChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
-	}
-
-	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.FastestvpnCountriesChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable COUNTRY: %w", err)
-	}
-
-	return settings.ServerSelection.OpenVPN.readProtocolOnly(r)
-}

internal/configuration/firewall.go

@@ -1,99 +0,0 @@
-package configuration
-
-import (
-	"fmt"
-	"net"
-	"strings"
-
-	"github.com/qdm12/golibs/params"
-)
-
-// Firewall contains settings to customize the firewall operation.
-type Firewall struct {
-	VPNInputPorts   []uint16
-	InputPorts      []uint16
-	OutboundSubnets []net.IPNet
-	Enabled         bool
-	Debug           bool
-}
-
-func (settings *Firewall) String() string {
-	return strings.Join(settings.lines(), "\n")
-}
-
-func (settings *Firewall) lines() (lines []string) {
-	if !settings.Enabled {
-		lines = append(lines, lastIndent+"Firewall: disabled ⚠️")
-		return lines
-	}
-
-	lines = append(lines, lastIndent+"Firewall:")
-
-	if settings.Debug {
-		lines = append(lines, indent+lastIndent+"Debug: on")
-	}
-
-	if len(settings.VPNInputPorts) > 0 {
-		lines = append(lines, indent+lastIndent+"VPN input ports: "+
-			strings.Join(uint16sToStrings(settings.VPNInputPorts), ", "))
-	}
-
-	if len(settings.InputPorts) > 0 {
-		lines = append(lines, indent+lastIndent+"Input ports: "+
-			strings.Join(uint16sToStrings(settings.InputPorts), ", "))
-	}
-
-	if len(settings.OutboundSubnets) > 0 {
-		lines = append(lines, indent+lastIndent+"Outbound subnets: "+
-			strings.Join(ipNetsToStrings(settings.OutboundSubnets), ", "))
-	}
-
-	return lines
-}
-
-func (settings *Firewall) read(r reader) (err error) {
-	settings.Enabled, err = r.env.OnOff("FIREWALL", params.Default("on"))
-	if err != nil {
-		return fmt.Errorf("environment variable FIREWALL: %w", err)
-	}
-
-	settings.Debug, err = r.env.OnOff("FIREWALL_DEBUG", params.Default("off"))
-	if err != nil {
-		return fmt.Errorf("environment variable FIREWALL_DEBUG: %w", err)
-	}
-
-	if err := settings.readVPNInputPorts(r.env); err != nil {
-		return err
-	}
-
-	if err := settings.readInputPorts(r.env); err != nil {
-		return err
-	}
-
-	return settings.readOutboundSubnets(r)
-}
-
-func (settings *Firewall) readVPNInputPorts(env params.Interface) (err error) {
-	settings.VPNInputPorts, err = readCSVPorts(env, "FIREWALL_VPN_INPUT_PORTS")
-	if err != nil {
-		return fmt.Errorf("environment variable FIREWALL_VPN_INPUT_PORTS: %w", err)
-	}
-	return nil
-}
-
-func (settings *Firewall) readInputPorts(env params.Interface) (err error) {
-	settings.InputPorts, err = readCSVPorts(env, "FIREWALL_INPUT_PORTS")
-	if err != nil {
-		return fmt.Errorf("environment variable FIREWALL_INPUT_PORTS: %w", err)
-	}
-	return nil
-}
-
-func (settings *Firewall) readOutboundSubnets(r reader) (err error) {
-	retroOption := params.RetroKeys([]string{"EXTRA_SUBNETS"}, r.onRetroActive)
-	settings.OutboundSubnets, err = readCSVIPNets(r.env, "FIREWALL_OUTBOUND_SUBNETS", retroOption)
-	if err != nil {
-		return fmt.Errorf("environment variable FIREWALL_OUTBOUND_SUBNETS: %w", err)
-	}
-	return nil
-}

internal/configuration/health.go

@@ -1,72 +0,0 @@
-package configuration
-
-import (
-	"fmt"
-	"strings"
-
-	"github.com/qdm12/gluetun/internal/models"
-	"github.com/qdm12/golibs/params"
-)
-
-// Health contains settings for the healthcheck and health server.
-type Health struct {
-	ServerAddress string
-	AddressToPing string
-	VPN           HealthyWait
-}
-
-func (settings *Health) String() string {
-	return strings.Join(settings.lines(), "\n")
-}
-
-func (settings *Health) lines() (lines []string) {
-	lines = append(lines, lastIndent+"Health:")
-
-	lines = append(lines, indent+lastIndent+"Server address: "+settings.ServerAddress)
-
-	lines = append(lines, indent+lastIndent+"Address to ping: "+settings.AddressToPing)
-
-	lines = append(lines, indent+lastIndent+"VPN:")
-	for _, line := range settings.VPN.lines() {
-		lines = append(lines, indent+indent+line)
-	}
-
-	return lines
-}
-
-// Read is to be used for the healthcheck query mode.
-func (settings *Health) Read(env params.Interface, warner Warner) (err error) {
-	reader := newReader(env, models.AllServers{}, warner) // note: no need for servers data
-	return settings.read(reader)
-}
-
-func (settings *Health) read(r reader) (err error) {
-	var warning string
-	settings.ServerAddress, warning, err = r.env.ListeningAddress(
-		"HEALTH_SERVER_ADDRESS", params.Default("127.0.0.1:9999"))
-	if warning != "" {
-		r.warner.Warn("environment variable HEALTH_SERVER_ADDRESS: " + warning)
-	}
-	if err != nil {
-		return fmt.Errorf("environment variable HEALTH_SERVER_ADDRESS: %w", err)
-	}
-
-	settings.AddressToPing, err = r.env.Get("HEALTH_ADDRESS_TO_PING", params.Default("github.com"))
-	if err != nil {
-		return fmt.Errorf("environment variable HEALTH_ADDRESS_TO_PING: %w", err)
-	}
-
-	retroKeyOption := params.RetroKeys([]string{"HEALTH_OPENVPN_DURATION_INITIAL"}, r.onRetroActive)
-	settings.VPN.Initial, err = r.env.Duration("HEALTH_VPN_DURATION_INITIAL", params.Default("6s"), retroKeyOption)
-	if err != nil {
-		return fmt.Errorf("environment variable HEALTH_VPN_DURATION_INITIAL: %w", err)
-	}
-
-	retroKeyOption = params.RetroKeys([]string{"HEALTH_OPENVPN_DURATION_ADDITION"}, r.onRetroActive)
-	settings.VPN.Addition, err = r.env.Duration("HEALTH_VPN_DURATION_ADDITION", params.Default("5s"), retroKeyOption)
-	if err != nil {
-		return fmt.Errorf("environment variable HEALTH_VPN_DURATION_ADDITION: %w", err)
-	}
-
-	return nil
-}

internal/configuration/health_test.go

@@ -1,272 +0,0 @@
-package configuration
-
-import (
-	"errors"
-	"testing"
-	"time"
-
-	"github.com/golang/mock/gomock"
-	"github.com/qdm12/golibs/params/mock_params"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-)
-
-func Test_Health_String(t *testing.T) {
-	t.Parallel()
-
-	health := Health{
-		ServerAddress: "a",
-		AddressToPing: "b",
-	}
-	const expected = `|--Health:
-   |--Server address: a
-   |--Address to ping: b
-   |--VPN:
-      |--Initial duration: 0s`
-
-	s := health.String()
-
-	assert.Equal(t, expected, s)
-}
-
-func Test_Health_lines(t *testing.T) {
-	t.Parallel()
-
-	testCases := map[string]struct {
-		settings Health
-		lines    []string
-	}{
-		"empty": {
-			lines: []string{
-				"|--Health:",
-				"   |--Server address: ",
-				"   |--Address to ping: ",
-				"   |--VPN:",
-				"      |--Initial duration: 0s",
-			},
-		},
-		"filled settings": {
-			settings: Health{
-				ServerAddress: "address:9999",
-				AddressToPing: "github.com",
-				VPN: HealthyWait{
-					Initial:  time.Second,
-					Addition: time.Minute,
-				},
-			},
-			lines: []string{
-				"|--Health:",
-				"   |--Server address: address:9999",
-				"   |--Address to ping: github.com",
-				"   |--VPN:",
-				"      |--Initial duration: 1s",
-				"      |--Addition duration: 1m0s",
-			},
-		},
-	}
-
-	for name, testCase := range testCases {
-		testCase := testCase
-		t.Run(name, func(t *testing.T) {
-			t.Parallel()
-
-			lines := testCase.settings.lines()
-
-			assert.Equal(t, testCase.lines, lines)
-		})
-	}
-}
-
-func Test_Health_read(t *testing.T) {
-	t.Parallel()
-
-	errDummy := errors.New("dummy")
-
-	type stringCall struct {
-		call bool
-		s    string
-		err  error
-	}
-
-	type stringCallWithWarning struct {
-		call    bool
-		s       string
-		warning string
-		err     error
-	}
-
-	type durationCall struct {
-		call     bool
-		duration time.Duration
-		err      error
-	}
-
-	testCases := map[string]struct {
-		serverAddress stringCallWithWarning
-		addressToPing stringCall
-		vpnInitial    durationCall
-		vpnAddition   durationCall
-		expected      Health
-		err           error
-	}{
-		"success": {
-			serverAddress: stringCallWithWarning{
-				call: true,
-				s:    "127.0.0.1:9999",
-			},
-			addressToPing: stringCall{
-				call: true,
-				s:    "1.2.3.4",
-			},
-			vpnInitial: durationCall{
-				call:     true,
-				duration: time.Second,
-			},
-			vpnAddition: durationCall{
-				call:     true,
-				duration: time.Minute,
-			},
-			expected: Health{
-				ServerAddress: "127.0.0.1:9999",
-				AddressToPing: "1.2.3.4",
-				VPN: HealthyWait{
-					Initial:  time.Second,
-					Addition: time.Minute,
-				},
-			},
-		},
-		"listening address error": {
-			serverAddress: stringCallWithWarning{
-				call:    true,
-				s:       "127.0.0.1:9999",
-				warning: "warning",
-				err:     errDummy,
-			},
-			expected: Health{
-				ServerAddress: "127.0.0.1:9999",
-			},
-			err: errors.New("environment variable HEALTH_SERVER_ADDRESS: dummy"),
-		},
-		"address to ping error": {
-			serverAddress: stringCallWithWarning{
-				call: true,
-			},
-			addressToPing: stringCall{
-				call: true,
-				s:    "address",
-				err:  errDummy,
-			},
-			expected: Health{
-				AddressToPing: "address",
-			},
-			err: errors.New("environment variable HEALTH_ADDRESS_TO_PING: dummy"),
-		},
-		"initial error": {
-			serverAddress: stringCallWithWarning{
-				call: true,
-			},
-			addressToPing: stringCall{
-				call: true,
-			},
-			vpnInitial: durationCall{
-				call:     true,
-				duration: time.Second,
-				err:      errDummy,
-			},
-			expected: Health{
-				VPN: HealthyWait{
-					Initial: time.Second,
-				},
-			},
-			err: errors.New("environment variable HEALTH_VPN_DURATION_INITIAL: dummy"),
-		},
-		"addition error": {
-			serverAddress: stringCallWithWarning{
-				call: true,
-			},
-			addressToPing: stringCall{
-				call: true,
-			},
-			vpnInitial: durationCall{
-				call:     true,
-				duration: time.Second,
-			},
-			vpnAddition: durationCall{
-				call:     true,
-				duration: time.Minute,
-				err:      errDummy,
-			},
-			expected: Health{
-				VPN: HealthyWait{
-					Initial:  time.Second,
-					Addition: time.Minute,
-				},
-			},
-			err: errors.New("environment variable HEALTH_VPN_DURATION_ADDITION: dummy"),
-		},
-	}
-
-	for name, testCase := range testCases {
-		testCase := testCase
-		t.Run(name, func(t *testing.T) {
-			t.Parallel()
-
-			ctrl := gomock.NewController(t)
-
-			env := mock_params.NewMockInterface(ctrl)
-			warner := NewMockWarner(ctrl)
-
-			if testCase.serverAddress.call {
-				value := testCase.serverAddress.s
-				warning := testCase.serverAddress.warning
-				err := testCase.serverAddress.err
-				env.EXPECT().ListeningAddress("HEALTH_SERVER_ADDRESS", gomock.Any()).
-					Return(value, warning, err)
-				if warning != "" {
-					warner.EXPECT().Warn("environment variable HEALTH_SERVER_ADDRESS: " + warning)
-				}
-			}
-
-			if testCase.addressToPing.call {
-				value := testCase.addressToPing.s
-				err := testCase.addressToPing.err
-				env.EXPECT().Get("HEALTH_ADDRESS_TO_PING", gomock.Any()).
-					Return(value, err)
-			}
-
-			if testCase.vpnInitial.call {
-				value := testCase.vpnInitial.duration
-				err := testCase.vpnInitial.err
-				env.EXPECT().
-					Duration("HEALTH_VPN_DURATION_INITIAL", gomock.Any()).
-					Return(value, err)
-			}
-
-			if testCase.vpnAddition.call {
-				value := testCase.vpnAddition.duration
-				err := testCase.vpnAddition.err
-				env.EXPECT().
-					Duration("HEALTH_VPN_DURATION_ADDITION", gomock.Any()).
-					Return(value, err)
-			}
-
-			r := reader{
-				env:    env,
-				warner: warner,
-			}
-
-			var health Health
-
-			err := health.read(r)
-
-			if testCase.err != nil {
-				require.Error(t, err)
-				assert.Equal(t, testCase.err.Error(), err.Error())
-			} else {
-				assert.NoError(t, err)
-			}
-
-			assert.Equal(t, testCase.expected, health)
-		})
-	}
-}

internal/configuration/healthwait_test.go

@@ -1,55 +0,0 @@
-package configuration
-
-import (
-	"testing"
-	"time"
-
-	"github.com/stretchr/testify/assert"
-)
-
-func Test_HealthyWait_String(t *testing.T) {
-	t.Parallel()
-
-	var healthyWait HealthyWait
-	const expected = "|--Initial duration: 0s"
-
-	s := healthyWait.String()
-
-	assert.Equal(t, expected, s)
-}
-
-func Test_HealthyWait_lines(t *testing.T) {
-	t.Parallel()
-
-	testCases := map[string]struct {
-		settings HealthyWait
-		lines    []string
-	}{
-		"empty": {
-			lines: []string{
-				"|--Initial duration: 0s",
-			},
-		},
-		"filled settings": {
-			settings: HealthyWait{
-				Initial:  time.Second,
-				Addition: time.Minute,
-			},
-			lines: []string{
-				"|--Initial duration: 1s",
-				"|--Addition duration: 1m0s",
-			},
-		},
-	}
-
-	for name, testCase := range testCases {
-		testCase := testCase
-		t.Run(name, func(t *testing.T) {
-			t.Parallel()
-
-			lines := testCase.settings.lines()
-
-			assert.Equal(t, testCase.lines, lines)
-		})
-	}
-}

internal/configuration/healthywait.go

@@ -1,30 +0,0 @@
-package configuration
-
-import (
-	"strings"
-	"time"
-)
-
-type HealthyWait struct {
-	// Initial is the initial duration to wait for the program
-	// to be healthy before taking action.
-	Initial time.Duration
-	// Addition is the duration to add to the Initial duration
-	// after Initial has expired to wait longer for the program
-	// to be healthy.
-	Addition time.Duration
-}
-
-func (settings *HealthyWait) String() string {
-	return strings.Join(settings.lines(), "\n")
-}
-
-func (settings *HealthyWait) lines() (lines []string) {
-	lines = append(lines, lastIndent+"Initial duration: "+settings.Initial.String())
-
-	if settings.Addition > 0 {
-		lines = append(lines, lastIndent+"Addition duration: "+settings.Addition.String())
-	}
-
-	return lines
-}

internal/configuration/hidemyass.go

@@ -1,40 +0,0 @@
-package configuration
-
-import (
-	"fmt"
-
-	"github.com/qdm12/gluetun/internal/constants"
-)
-
-func (settings *Provider) readHideMyAss(r reader) (err error) {
-	settings.Name = constants.HideMyAss
-	servers := r.servers.GetHideMyAss()
-
-	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
-	if err != nil {
-		return err
-	}
-
-	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.HideMyAssCountryChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable COUNTRY: %w", err)
-	}
-
-	settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", constants.HideMyAssCountryChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable REGION: %w", err)
-	}
-
-	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.HideMyAssCityChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable CITY: %w", err)
-	}
-
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME",
-		constants.HideMyAssHostnameChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
-	}
-
-	return settings.ServerSelection.OpenVPN.readProtocolAndPort(r)
-}

internal/configuration/httpproxy.go

@@ -1,106 +0,0 @@
-package configuration
-
-import (
-	"fmt"
-	"strconv"
-	"strings"
-
-	"github.com/qdm12/golibs/params"
-)
-
-// HTTPProxy contains settings to configure the HTTP proxy.
-type HTTPProxy struct {
-	User     string
-	Password string
-	Port     uint16
-	Enabled  bool
-	Stealth  bool
-	Log      bool
-}
-
-func (settings *HTTPProxy) String() string {
-	return strings.Join(settings.lines(), "\n")
-}
-
-func (settings *HTTPProxy) lines() (lines []string) {
-	if !settings.Enabled {
-		return nil
-	}
-
-	lines = append(lines, lastIndent+"HTTP proxy:")
-
-	lines = append(lines, indent+lastIndent+"Port: "+strconv.Itoa(int(settings.Port)))
-
-	if settings.User != "" {
-		lines = append(lines, indent+lastIndent+"Authentication: enabled")
-	}
-
-	if settings.Log {
-		lines = append(lines, indent+lastIndent+"Log: enabled")
-	}
-
-	if settings.Stealth {
-		lines = append(lines, indent+lastIndent+"Stealth: enabled")
-	}
-
-	return lines
-}
-
-func (settings *HTTPProxy) read(r reader) (err error) {
-	settings.Enabled, err = r.env.OnOff("HTTPPROXY", params.Default("off"),
-		params.RetroKeys([]string{"TINYPROXY", "PROXY"}, r.onRetroActive))
-	if err != nil {
-		return fmt.Errorf("environment variable HTTPPROXY (or TINYPROXY, PROXY): %w", err)
-	}
-
-	settings.User, err = r.getFromEnvOrSecretFile("HTTPPROXY_USER", false, // compulsory
-		[]string{"TINYPROXY_USER", "PROXY_USER"})
-	if err != nil {
-		return fmt.Errorf("environment variable HTTPPROXY_USER (or TINYPROXY_USER, PROXY_USER): %w", err)
-	}
-
-	settings.Password, err = r.getFromEnvOrSecretFile("HTTPPROXY_PASSWORD", false,
-		[]string{"TINYPROXY_PASSWORD", "PROXY_PASSWORD"})
-	if err != nil {
-		return fmt.Errorf("environment variable HTTPPROXY_PASSWORD (or TINYPROXY_PASSWORD, PROXY_PASSWORD): %w", err)
-	}
-
-	settings.Stealth, err = r.env.OnOff("HTTPPROXY_STEALTH", params.Default("off"))
-	if err != nil {
-		return fmt.Errorf("environment variable HTTPPROXY_STEALTH: %w", err)
-	}
-
-	if err := settings.readLog(r); err != nil {
-		return err
-	}
-
-	var warning string
-	settings.Port, warning, err = r.env.ListeningPort("HTTPPROXY_PORT", params.Default("8888"),
-		params.RetroKeys([]string{"TINYPROXY_PORT", "PROXY_PORT"}, r.onRetroActive))
-	if len(warning) > 0 {
-		r.warner.Warn(warning)
-	}
-	if err != nil {
-		return fmt.Errorf("environment variable HTTPPROXY_PORT (or TINYPROXY_PORT, PROXY_PORT): %w", err)
-	}
-
-	return nil
-}
-
-func (settings *HTTPProxy) readLog(r reader) error {
-	s, err := r.env.Get("HTTPPROXY_LOG",
-		params.RetroKeys([]string{"PROXY_LOG_LEVEL", "TINYPROXY_LOG"}, r.onRetroActive))
-	if err != nil {
-		return fmt.Errorf("environment variable HTTPPROXY_LOG (or TINYPROXY_LOG, PROXY_LOG_LEVEL): %w", err)
-	}
-
-	switch strings.ToLower(s) {
-	case "on":
-		settings.Log = true
-	// Retro compatibility
-	case "info", "connect", "notice":
-		settings.Log = true
-	}
-
-	return nil
-}

internal/configuration/ipvanish.go

@@ -1,35 +0,0 @@
-package configuration
-
-import (
-	"fmt"
-
-	"github.com/qdm12/gluetun/internal/constants"
-)
-
-func (settings *Provider) readIpvanish(r reader) (err error) {
-	settings.Name = constants.Ipvanish
-	servers := r.servers.GetIpvanish()
-
-	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
-	if err != nil {
-		return err
-	}
-
-	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.IpvanishCountryChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable COUNTRY: %w", err)
-	}
-
-	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.IpvanishCityChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable CITY: %w", err)
-	}
-
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME",
-		constants.IpvanishHostnameChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
-	}
-
-	return settings.ServerSelection.OpenVPN.readProtocolOnly(r)
-}

internal/configuration/ipvanish_test.go

@@ -1,170 +0,0 @@
-package configuration
-
-import (
-	"errors"
-	"net"
-	"testing"
-
-	"github.com/golang/mock/gomock"
-	"github.com/qdm12/gluetun/internal/constants"
-	"github.com/qdm12/gluetun/internal/models"
-	"github.com/qdm12/golibs/params/mock_params"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-)
-
-func Test_Provider_readIpvanish(t *testing.T) {
-	t.Parallel()
-
-	var errDummy = errors.New("dummy test error")
-
-	type singleStringCall struct {
-		call  bool
-		value string
-		err   error
-	}
-
-	type sliceStringCall struct {
-		call   bool
-		values []string
-		err    error
-	}
-
-	testCases := map[string]struct {
-		targetIP  singleStringCall
-		countries sliceStringCall
-		cities    sliceStringCall
-		hostnames sliceStringCall
-		protocol  singleStringCall
-		settings  Provider
-		err       error
-	}{
-		"target IP error": {
-			targetIP: singleStringCall{call: true, value: "something", err: errDummy},
-			settings: Provider{
-				Name: constants.Ipvanish,
-			},
-			err: errors.New("environment variable OPENVPN_TARGET_IP: dummy test error"),
-		},
-		"countries error": {
-			targetIP:  singleStringCall{call: true},
-			countries: sliceStringCall{call: true, err: errDummy},
-			settings: Provider{
-				Name: constants.Ipvanish,
-			},
-			err: errors.New("environment variable COUNTRY: dummy test error"),
-		},
-		"cities error": {
-			targetIP:  singleStringCall{call: true},
-			countries: sliceStringCall{call: true},
-			cities:    sliceStringCall{call: true, err: errDummy},
-			settings: Provider{
-				Name: constants.Ipvanish,
-			},
-			err: errors.New("environment variable CITY: dummy test error"),
-		},
-		"hostnames error": {
-			targetIP:  singleStringCall{call: true},
-			countries: sliceStringCall{call: true},
-			cities:    sliceStringCall{call: true},
-			hostnames: sliceStringCall{call: true, err: errDummy},
-			settings: Provider{
-				Name: constants.Ipvanish,
-			},
-			err: errors.New("environment variable SERVER_HOSTNAME: dummy test error"),
-		},
-		"protocol error": {
-			targetIP:  singleStringCall{call: true},
-			countries: sliceStringCall{call: true},
-			cities:    sliceStringCall{call: true},
-			hostnames: sliceStringCall{call: true},
-			protocol:  singleStringCall{call: true, err: errDummy},
-			settings: Provider{
-				Name: constants.Ipvanish,
-			},
-			err: errors.New("environment variable OPENVPN_PROTOCOL: dummy test error"),
-		},
-		"default settings": {
-			targetIP:  singleStringCall{call: true},
-			countries: sliceStringCall{call: true},
-			cities:    sliceStringCall{call: true},
-			hostnames: sliceStringCall{call: true},
-			protocol:  singleStringCall{call: true},
-			settings: Provider{
-				Name: constants.Ipvanish,
-			},
-		},
-		"set settings": {
-			targetIP:  singleStringCall{call: true, value: "1.2.3.4"},
-			countries: sliceStringCall{call: true, values: []string{"A", "B"}},
-			cities:    sliceStringCall{call: true, values: []string{"C", "D"}},
-			hostnames: sliceStringCall{call: true, values: []string{"E", "F"}},
-			protocol:  singleStringCall{call: true, value: constants.TCP},
-			settings: Provider{
-				Name: constants.Ipvanish,
-				ServerSelection: ServerSelection{
-					OpenVPN: OpenVPNSelection{
-						TCP: true,
-					},
-					TargetIP:  net.IPv4(1, 2, 3, 4),
-					Countries: []string{"A", "B"},
-					Cities:    []string{"C", "D"},
-					Hostnames: []string{"E", "F"},
-				},
-			},
-		},
-	}
-	for name, testCase := range testCases {
-		testCase := testCase
-		t.Run(name, func(t *testing.T) {
-			t.Parallel()
-			ctrl := gomock.NewController(t)
-
-			servers := []models.IpvanishServer{{Hostname: "a"}}
-			allServers := models.AllServers{
-				Ipvanish: models.IpvanishServers{
-					Servers: servers,
-				},
-			}
-
-			env := mock_params.NewMockInterface(ctrl)
-			if testCase.targetIP.call {
-				env.EXPECT().Get("OPENVPN_TARGET_IP").
-					Return(testCase.targetIP.value, testCase.targetIP.err)
-			}
-			if testCase.countries.call {
-				env.EXPECT().CSVInside("COUNTRY", constants.IpvanishCountryChoices(servers)).
-					Return(testCase.countries.values, testCase.countries.err)
-			}
-			if testCase.cities.call {
-				env.EXPECT().CSVInside("CITY", constants.IpvanishCityChoices(servers)).
-					Return(testCase.cities.values, testCase.cities.err)
-			}
-			if testCase.hostnames.call {
-				env.EXPECT().CSVInside("SERVER_HOSTNAME", constants.IpvanishHostnameChoices(servers)).
-					Return(testCase.hostnames.values, testCase.hostnames.err)
-			}
-			if testCase.protocol.call {
-				env.EXPECT().Inside("OPENVPN_PROTOCOL", []string{constants.TCP, constants.UDP}, gomock.Any()).
-					Return(testCase.protocol.value, testCase.protocol.err)
-			}
-
-			r := reader{
-				servers: allServers,
-				env:     env,
-			}
-
-			var settings Provider
-			err := settings.readIpvanish(r)
-
-			if testCase.err != nil {
-				require.Error(t, err)
-				assert.Equal(t, testCase.err.Error(), err.Error())
-			} else {
-				assert.NoError(t, err)
-			}
-
-			assert.Equal(t, testCase.settings, settings)
-		})
-	}
-}

internal/configuration/ivpn.go

@@ -1,73 +0,0 @@
-package configuration
-
-import (
-	"fmt"
-
-	"github.com/qdm12/gluetun/internal/constants"
-	"github.com/qdm12/golibs/params"
-)
-
-func (settings *Provider) readIvpn(r reader) (err error) {
-	settings.Name = constants.Ivpn
-	servers := r.servers.GetIvpn()
-
-	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
-	if err != nil {
-		return err
-	}
-
-	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.IvpnCountryChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable COUNTRY: %w", err)
-	}
-
-	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.IvpnCityChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable CITY: %w", err)
-	}
-
-	settings.ServerSelection.ISPs, err = r.env.CSVInside("ISP", constants.IvpnISPChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable ISP: %w", err)
-	}
-
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.IvpnHostnameChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
-	}
-
-	err = settings.ServerSelection.OpenVPN.readIVPN(r)
-	if err != nil {
-		return err
-	}
-
-	return settings.ServerSelection.Wireguard.readIVPN(r.env)
-}
-
-func (settings *OpenVPNSelection) readIVPN(r reader) (err error) {
-	settings.TCP, err = readOpenVPNProtocol(r)
-	if err != nil {
-		return err
-	}
-
-	settings.CustomPort, err = readOpenVPNCustomPort(r, openvpnPortValidation{
-		tcp:        settings.TCP,
-		allowedTCP: []uint16{80, 443, 1443},
-		allowedUDP: []uint16{53, 1194, 2049, 2050},
-	})
-	if err != nil {
-		return err
-	}
-
-	return nil
-}
-
-func (settings *WireguardSelection) readIVPN(env params.Interface) (err error) {
-	settings.EndpointPort, err = readWireguardCustomPort(env,
-		[]uint16{2049, 2050, 53, 30587, 41893, 48574, 58237})
-	if err != nil {
-		return err
-	}
-
-	return nil
-}

internal/configuration/ivpn_test.go

@@ -1,274 +0,0 @@
-package configuration
-
-import (
-	"errors"
-	"net"
-	"testing"
-
-	"github.com/golang/mock/gomock"
-	"github.com/qdm12/gluetun/internal/constants"
-	"github.com/qdm12/gluetun/internal/models"
-	"github.com/qdm12/golibs/params/mock_params"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-)
-
-func Test_Provider_readIvpn(t *testing.T) { //nolint:gocognit
-	t.Parallel()
-
-	var errDummy = errors.New("dummy test error")
-
-	type singleStringCall struct {
-		call  bool
-		value string
-		err   error
-	}
-
-	type portCall struct {
-		getCall   bool
-		getValue  string // "" or "0"
-		getErr    error
-		portCall  bool
-		portValue uint16
-		portErr   error
-	}
-
-	type sliceStringCall struct {
-		call   bool
-		values []string
-		err    error
-	}
-
-	testCases := map[string]struct {
-		targetIP    singleStringCall
-		countries   sliceStringCall
-		cities      sliceStringCall
-		isps        sliceStringCall
-		hostnames   sliceStringCall
-		protocol    singleStringCall
-		ovpnPort    portCall
-		ovpnOldPort portCall
-		wgPort      portCall
-		wgOldPort   portCall
-		settings    Provider
-		err         error
-	}{
-		"target IP error": {
-			targetIP: singleStringCall{call: true, value: "something", err: errDummy},
-			settings: Provider{
-				Name: constants.Ivpn,
-			},
-			err: errors.New("environment variable OPENVPN_TARGET_IP: dummy test error"),
-		},
-		"countries error": {
-			targetIP:  singleStringCall{call: true},
-			countries: sliceStringCall{call: true, err: errDummy},
-			settings: Provider{
-				Name: constants.Ivpn,
-			},
-			err: errors.New("environment variable COUNTRY: dummy test error"),
-		},
-		"cities error": {
-			targetIP:  singleStringCall{call: true},
-			countries: sliceStringCall{call: true},
-			cities:    sliceStringCall{call: true, err: errDummy},
-			settings: Provider{
-				Name: constants.Ivpn,
-			},
-			err: errors.New("environment variable CITY: dummy test error"),
-		},
-		"isps error": {
-			targetIP:  singleStringCall{call: true},
-			countries: sliceStringCall{call: true},
-			cities:    sliceStringCall{call: true},
-			isps:      sliceStringCall{call: true, err: errDummy},
-			settings: Provider{
-				Name: constants.Ivpn,
-			},
-			err: errors.New("environment variable ISP: dummy test error"),
-		},
-		"hostnames error": {
-			targetIP:  singleStringCall{call: true},
-			countries: sliceStringCall{call: true},
-			cities:    sliceStringCall{call: true},
-			isps:      sliceStringCall{call: true},
-			hostnames: sliceStringCall{call: true, err: errDummy},
-			settings: Provider{
-				Name: constants.Ivpn,
-			},
-			err: errors.New("environment variable SERVER_HOSTNAME: dummy test error"),
-		},
-		"openvpn protocol error": {
-			targetIP:  singleStringCall{call: true},
-			countries: sliceStringCall{call: true},
-			cities:    sliceStringCall{call: true},
-			isps:      sliceStringCall{call: true},
-			hostnames: sliceStringCall{call: true},
-			protocol:  singleStringCall{call: true, err: errDummy},
-			settings: Provider{
-				Name: constants.Ivpn,
-			},
-			err: errors.New("environment variable OPENVPN_PROTOCOL: dummy test error"),
-		},
-		"openvpn custom port error": {
-			targetIP:  singleStringCall{call: true},
-			countries: sliceStringCall{call: true},
-			cities:    sliceStringCall{call: true},
-			isps:      sliceStringCall{call: true},
-			hostnames: sliceStringCall{call: true},
-			protocol:  singleStringCall{call: true},
-			ovpnPort:  portCall{getCall: true, getErr: errDummy},
-			settings: Provider{
-				Name: constants.Ivpn,
-			},
-			err: errors.New("environment variable OPENVPN_PORT: dummy test error"),
-		},
-		"wireguard custom port error": {
-			targetIP:    singleStringCall{call: true},
-			countries:   sliceStringCall{call: true},
-			cities:      sliceStringCall{call: true},
-			isps:        sliceStringCall{call: true},
-			hostnames:   sliceStringCall{call: true},
-			protocol:    singleStringCall{call: true},
-			ovpnPort:    portCall{getCall: true, getValue: "0"},
-			ovpnOldPort: portCall{getCall: true, getValue: "0"},
-			wgPort:      portCall{getCall: true, getErr: errDummy},
-			settings: Provider{
-				Name: constants.Ivpn,
-			},
-			err: errors.New("environment variable WIREGUARD_ENDPOINT_PORT: dummy test error"),
-		},
-		"default settings": {
-			targetIP:    singleStringCall{call: true},
-			countries:   sliceStringCall{call: true},
-			cities:      sliceStringCall{call: true},
-			isps:        sliceStringCall{call: true},
-			hostnames:   sliceStringCall{call: true},
-			protocol:    singleStringCall{call: true},
-			ovpnPort:    portCall{getCall: true, getValue: "0"},
-			ovpnOldPort: portCall{getCall: true, getValue: "0"},
-			wgPort:      portCall{getCall: true, getValue: "0"},
-			wgOldPort:   portCall{getCall: true, getValue: "0"},
-			settings: Provider{
-				Name: constants.Ivpn,
-			},
-		},
-		"set settings": {
-			targetIP:  singleStringCall{call: true, value: "1.2.3.4"},
-			countries: sliceStringCall{call: true, values: []string{"A", "B"}},
-			cities:    sliceStringCall{call: true, values: []string{"C", "D"}},
-			isps:      sliceStringCall{call: true, values: []string{"ISP 1"}},
-			hostnames: sliceStringCall{call: true, values: []string{"E", "F"}},
-			protocol:  singleStringCall{call: true, value: constants.TCP},
-			ovpnPort:  portCall{getCall: true, portCall: true, portValue: 443},
-			wgPort:    portCall{getCall: true, portCall: true, portValue: 2049},
-			settings: Provider{
-				Name: constants.Ivpn,
-				ServerSelection: ServerSelection{
-					OpenVPN: OpenVPNSelection{
-						TCP:        true,
-						CustomPort: 443,
-					},
-					Wireguard: WireguardSelection{
-						EndpointPort: 2049,
-					},
-					TargetIP:  net.IPv4(1, 2, 3, 4),
-					Countries: []string{"A", "B"},
-					Cities:    []string{"C", "D"},
-					ISPs:      []string{"ISP 1"},
-					Hostnames: []string{"E", "F"},
-				},
-			},
-		},
-	}
-	for name, testCase := range testCases {
-		testCase := testCase
-		t.Run(name, func(t *testing.T) {
-			t.Parallel()
-			ctrl := gomock.NewController(t)
-
-			env := mock_params.NewMockInterface(ctrl)
-
-			servers := []models.IvpnServer{{Hostname: "a"}}
-			allServers := models.AllServers{
-				Ivpn: models.IvpnServers{
-					Servers: servers,
-				},
-			}
-
-			if testCase.targetIP.call {
-				env.EXPECT().Get("OPENVPN_TARGET_IP").
-					Return(testCase.targetIP.value, testCase.targetIP.err)
-			}
-			if testCase.countries.call {
-				env.EXPECT().CSVInside("COUNTRY", constants.IvpnCountryChoices(servers)).
-					Return(testCase.countries.values, testCase.countries.err)
-			}
-			if testCase.cities.call {
-				env.EXPECT().CSVInside("CITY", constants.IvpnCityChoices(servers)).
-					Return(testCase.cities.values, testCase.cities.err)
-			}
-			if testCase.isps.call {
-				env.EXPECT().CSVInside("ISP", constants.IvpnISPChoices(servers)).
-					Return(testCase.isps.values, testCase.isps.err)
-			}
-			if testCase.hostnames.call {
-				env.EXPECT().CSVInside("SERVER_HOSTNAME", constants.IvpnHostnameChoices(servers)).
-					Return(testCase.hostnames.values, testCase.hostnames.err)
-			}
-			if testCase.protocol.call {
-				env.EXPECT().Inside("OPENVPN_PROTOCOL", []string{constants.TCP, constants.UDP}, gomock.Any()).
-					Return(testCase.protocol.value, testCase.protocol.err)
-			}
-			if testCase.ovpnPort.getCall {
-				env.EXPECT().Get("OPENVPN_PORT", gomock.Any()).
-					Return(testCase.ovpnPort.getValue, testCase.ovpnPort.getErr)
-			}
-			if testCase.ovpnPort.portCall {
-				env.EXPECT().Port("OPENVPN_PORT").
-					Return(testCase.ovpnPort.portValue, testCase.ovpnPort.portErr)
-			}
-			if testCase.ovpnOldPort.getCall {
-				env.EXPECT().Get("PORT", gomock.Any()).
-					Return(testCase.ovpnOldPort.getValue, testCase.ovpnOldPort.getErr)
-			}
-			if testCase.ovpnOldPort.portCall {
-				env.EXPECT().Port("PORT").
-					Return(testCase.ovpnOldPort.portValue, testCase.ovpnOldPort.portErr)
-			}
-			if testCase.wgPort.getCall {
-				env.EXPECT().Get("WIREGUARD_ENDPOINT_PORT", gomock.Any()).
-					Return(testCase.wgPort.getValue, testCase.wgPort.getErr)
-			}
-			if testCase.wgPort.portCall {
-				env.EXPECT().Port("WIREGUARD_ENDPOINT_PORT").
-					Return(testCase.wgPort.portValue, testCase.wgPort.portErr)
-			}
-			if testCase.wgOldPort.getCall {
-				env.EXPECT().Get("WIREGUARD_PORT", gomock.Any()).
-					Return(testCase.wgOldPort.getValue, testCase.wgOldPort.getErr)
-			}
-			if testCase.wgOldPort.portCall {
-				env.EXPECT().Port("WIREGUARD_PORT").
-					Return(testCase.wgOldPort.portValue, testCase.wgOldPort.portErr)
-			}
-
-			r := reader{
-				servers: allServers,
-				env:     env,
-			}
-
-			var settings Provider
-			err := settings.readIvpn(r)
-
-			if testCase.err != nil {
-				require.Error(t, err)
-				assert.Equal(t, testCase.err.Error(), err.Error())
-			} else {
-				assert.NoError(t, err)
-			}
-
-			assert.Equal(t, testCase.settings, settings)
-		})
-	}
-}

internal/configuration/keys.go

@@ -1,29 +0,0 @@
-package configuration
-
-import (
-	"errors"
-
-	"github.com/qdm12/gluetun/internal/constants"
-	"github.com/qdm12/gluetun/internal/openvpn/parse"
-)
-
-var (
-	errClientCert = errors.New("cannot read client certificate")
-	errClientKey  = errors.New("cannot read client key")
-)
-
-func readClientKey(r reader) (clientKey string, err error) {
-	b, err := r.getFromFileOrSecretFile("OPENVPN_CLIENTKEY", constants.ClientKey)
-	if err != nil {
-		return "", err
-	}
-	return parse.ExtractPrivateKey(b)
-}
-
-func readClientCertificate(r reader) (clientCertificate string, err error) {
-	b, err := r.getFromFileOrSecretFile("OPENVPN_CLIENTCRT", constants.ClientCertificate)
-	if err != nil {
-		return "", err
-	}
-	return parse.ExtractCert(b)
-}

internal/configuration/lines.go

@@ -1,22 +0,0 @@
-package configuration
-
-import (
-	"net"
-	"strconv"
-)
-
-func uint16sToStrings(uint16s []uint16) (strings []string) {
-	strings = make([]string, len(uint16s))
-	for i := range uint16s {
-		strings[i] = strconv.Itoa(int(uint16s[i]))
-	}
-	return strings
-}
-
-func ipNetsToStrings(ipNets []net.IPNet) (strings []string) {
-	strings = make([]string, len(ipNets))
-	for i := range ipNets {
-		strings[i] = ipNets[i].String()
-	}
-	return strings
-}

internal/configuration/log.go

@@ -1,30 +0,0 @@
-package configuration
-
-import (
-	"fmt"
-
-	"github.com/qdm12/golibs/logging"
-	"github.com/qdm12/golibs/params"
-)
-
-type Log struct {
-	Level logging.Level `json:"level"`
-}
-
-func (settings *Log) lines() (lines []string) {
-	lines = append(lines, lastIndent+"Log:")
-
-	lines = append(lines, indent+lastIndent+"Level: "+settings.Level.String())
-
-	return lines
-}
-
-func (settings *Log) read(env params.Interface) (err error) {
-	defaultLevel := logging.LevelInfo.String()
-	settings.Level, err = env.LogLevel("LOG_LEVEL", params.Default(defaultLevel))
-	if err != nil {
-		return fmt.Errorf("environment variable LOG_LEVEL: %w", err)
-	}
-
-	return nil
-}

internal/configuration/mullvad.go

@@ -1,77 +0,0 @@
-package configuration
-
-import (
-	"fmt"
-
-	"github.com/qdm12/gluetun/internal/constants"
-	"github.com/qdm12/golibs/params"
-)
-
-func (settings *Provider) readMullvad(r reader) (err error) {
-	settings.Name = constants.Mullvad
-	servers := r.servers.GetMullvad()
-
-	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
-	if err != nil {
-		return err
-	}
-
-	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.MullvadCountryChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable COUNTRY: %w", err)
-	}
-
-	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.MullvadCityChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable CITY: %w", err)
-	}
-
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.MullvadHostnameChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
-	}
-
-	settings.ServerSelection.ISPs, err = r.env.CSVInside("ISP", constants.MullvadISPChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable ISP: %w", err)
-	}
-
-	settings.ServerSelection.Owned, err = r.env.YesNo("OWNED", params.Default("no"))
-	if err != nil {
-		return fmt.Errorf("environment variable OWNED: %w", err)
-	}
-
-	err = settings.ServerSelection.OpenVPN.readMullvad(r)
-	if err != nil {
-		return err
-	}
-
-	return settings.ServerSelection.Wireguard.readMullvad(r.env)
-}
-
-func (settings *OpenVPNSelection) readMullvad(r reader) (err error) {
-	settings.TCP, err = readOpenVPNProtocol(r)
-	if err != nil {
-		return err
-	}
-
-	settings.CustomPort, err = readOpenVPNCustomPort(r, openvpnPortValidation{
-		tcp:        settings.TCP,
-		allowedTCP: []uint16{80, 443, 1401},
-		allowedUDP: []uint16{53, 1194, 1195, 1196, 1197, 1300, 1301, 1302, 1303, 1400},
-	})
-	if err != nil {
-		return err
-	}
-
-	return nil
-}
-
-func (settings *WireguardSelection) readMullvad(env params.Interface) (err error) {
-	settings.EndpointPort, err = readWireguardCustomPort(env, nil)
-	if err != nil {
-		return err
-	}
-
-	return nil
-}

internal/configuration/nordvpn.go

@@ -1,58 +0,0 @@
-package configuration
-
-import (
-	"fmt"
-	"strconv"
-
-	"github.com/qdm12/gluetun/internal/constants"
-	"github.com/qdm12/golibs/params"
-)
-
-func (settings *Provider) readNordvpn(r reader) (err error) {
-	settings.Name = constants.Nordvpn
-	servers := r.servers.GetNordvpn()
-
-	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
-	if err != nil {
-		return err
-	}
-
-	settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", constants.NordvpnRegionChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable REGION: %w", err)
-	}
-
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.NordvpnHostnameChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
-	}
-
-	settings.ServerSelection.Numbers, err = readNordVPNServerNumbers(r.env)
-	if err != nil {
-		return err
-	}
-
-	return settings.ServerSelection.OpenVPN.readProtocolOnly(r)
-}
-
-func readNordVPNServerNumbers(env params.Interface) (numbers []uint16, err error) {
-	const possiblePortsCount = 65537
-	possibilities := make([]string, possiblePortsCount)
-	for i := range possibilities {
-		possibilities[i] = fmt.Sprintf("%d", i)
-	}
-	possibilities[65536] = ""
-	values, err := env.CSVInside("SERVER_NUMBER", possibilities)
-	if err != nil {
-		return nil, err
-	}
-	numbers = make([]uint16, len(values))
-	for i := range values {
-		n, err := strconv.Atoi(values[i])
-		if err != nil {
-			return nil, err
-		}
-		numbers[i] = uint16(n)
-	}
-	return numbers, nil
-}

internal/configuration/openvpn.go

@@ -1,207 +0,0 @@
-package configuration
-
-import (
-	"errors"
-	"fmt"
-	"regexp"
-	"strconv"
-	"strings"
-
-	"github.com/qdm12/gluetun/internal/constants"
-	"github.com/qdm12/golibs/params"
-)
-
-// OpenVPN contains settings to configure the OpenVPN client.
-type OpenVPN struct {
-	User      string   `json:"user"`
-	Password  string   `json:"password"`
-	Verbosity int      `json:"verbosity"`
-	Flags     []string `json:"flags"`
-	MSSFix    uint16   `json:"mssfix"`
-	Root      bool     `json:"run_as_root"`
-	Ciphers   []string `json:"ciphers"`
-	Auth      string   `json:"auth"`
-	ConfFile  string   `json:"conf_file"`
-	Version   string   `json:"version"`
-	ClientCrt string   `json:"-"`                 // Cyberghost
-	ClientKey string   `json:"-"`                 // Cyberghost, VPNUnlimited
-	EncPreset string   `json:"encryption_preset"` // PIA
-	IPv6      bool     `json:"ipv6"`              // Mullvad
-	ProcUser  string   `json:"procuser"`          // Process username
-	Interface string   `json:"interface"`
-}
-
-func (settings *OpenVPN) String() string {
-	return strings.Join(settings.lines(), "\n")
-}
-
-func (settings *OpenVPN) lines() (lines []string) {
-	lines = append(lines, lastIndent+"OpenVPN:")
-
-	lines = append(lines, indent+lastIndent+"Version: "+settings.Version)
-
-	lines = append(lines, indent+lastIndent+"Verbosity level: "+strconv.Itoa(settings.Verbosity))
-
-	lines = append(lines, indent+lastIndent+"Network interface: "+settings.Interface)
-
-	if len(settings.Flags) > 0 {
-		lines = append(lines, indent+lastIndent+"Flags: "+strings.Join(settings.Flags, " "))
-	}
-
-	if settings.Root {
-		lines = append(lines, indent+lastIndent+"Run as root: enabled")
-	}
-
-	if len(settings.Ciphers) > 0 {
-		lines = append(lines, indent+lastIndent+"Custom ciphers: "+commaJoin(settings.Ciphers))
-	}
-	if len(settings.Auth) > 0 {
-		lines = append(lines, indent+lastIndent+"Custom auth algorithm: "+settings.Auth)
-	}
-
-	if settings.ConfFile != "" {
-		lines = append(lines, indent+lastIndent+"Configuration file: "+settings.ConfFile)
-	}
-
-	if settings.ClientKey != "" {
-		lines = append(lines, indent+lastIndent+"Client key is set")
-	}
-
-	if settings.ClientCrt != "" {
-		lines = append(lines, indent+lastIndent+"Client certificate is set")
-	}
-
-	if settings.IPv6 {
-		lines = append(lines, indent+lastIndent+"IPv6: enabled")
-	}
-
-	if settings.EncPreset != "" { // PIA only
-		lines = append(lines, indent+lastIndent+"Encryption preset: "+settings.EncPreset)
-	}
-
-	return lines
-}
-
-func (settings *OpenVPN) read(r reader, serviceProvider string) (err error) {
-	credentialsRequired := false
-	switch serviceProvider {
-	case constants.Custom:
-	case constants.VPNUnlimited:
-	default:
-		credentialsRequired = true
-	}
-
-	settings.User, err = r.getFromEnvOrSecretFile("OPENVPN_USER", credentialsRequired, []string{"USER"})
-	if err != nil {
-		return fmt.Errorf("environment variable OPENVPN_USER: %w", err)
-	}
-	// Remove spaces in user ID to simplify user's life, thanks @JeordyR
-	settings.User = strings.ReplaceAll(settings.User, " ", "")
-
-	if serviceProvider == constants.Mullvad {
-		settings.Password = "m"
-	} else {
-		settings.Password, err = r.getFromEnvOrSecretFile("OPENVPN_PASSWORD", credentialsRequired, []string{"PASSWORD"})
-		if err != nil {
-			return err
-		}
-	}
-
-	settings.Version, err = r.env.Inside("OPENVPN_VERSION",
-		[]string{constants.Openvpn24, constants.Openvpn25}, params.Default(constants.Openvpn25))
-	if err != nil {
-		return fmt.Errorf("environment variable OPENVPN_VERSION: %w", err)
-	}
-
-	settings.Verbosity, err = r.env.IntRange("OPENVPN_VERBOSITY", 0, 6, params.Default("1")) //nolint:gomnd
-	if err != nil {
-		return fmt.Errorf("environment variable OPENVPN_VERBOSITY: %w", err)
-	}
-
-	settings.Flags = []string{}
-	flagsStr, err := r.env.Get("OPENVPN_FLAGS")
-	if err != nil {
-		return fmt.Errorf("environment variable OPENVPN_FLAGS: %w", err)
-	}
-	if flagsStr != "" {
-		settings.Flags = strings.Fields(flagsStr)
-	}
-
-	settings.Root, err = r.env.YesNo("OPENVPN_ROOT", params.Default("no"))
-	if err != nil {
-		return fmt.Errorf("environment variable OPENVPN_ROOT: %w", err)
-	}
-
-	settings.Ciphers, err = r.env.CSV("OPENVPN_CIPHER")
-	if err != nil {
-		return fmt.Errorf("environment variable OPENVPN_CIPHER: %w", err)
-	}
-
-	settings.Auth, err = r.env.Get("OPENVPN_AUTH")
-	if err != nil {
-		return fmt.Errorf("environment variable OPENVPN_AUTH: %w", err)
-	}
-
-	const maxMSSFix = 10000
-	mssFix, err := r.env.IntRange("OPENVPN_MSSFIX", 0, maxMSSFix, params.Default("0"))
-	if err != nil {
-		return fmt.Errorf("environment variable OPENVPN_MSSFIX: %w", err)
-	}
-	settings.MSSFix = uint16(mssFix)
-
-	settings.IPv6, err = r.env.OnOff("OPENVPN_IPV6", params.Default("off"))
-	if err != nil {
-		return fmt.Errorf("environment variable OPENVPN_IPV6: %w", err)
-	}
-
-	settings.Interface, err = readInterface(r.env)
-	if err != nil {
-		return err
-	}
-
-	switch serviceProvider {
-	case constants.Custom:
-		err = settings.readCustom(r) // read OPENVPN_CUSTOM_CONFIG
-	case constants.Cyberghost:
-		err = settings.readCyberghost(r)
-	case constants.PrivateInternetAccess:
-		settings.EncPreset, err = getPIAEncryptionPreset(r)
-	case constants.VPNUnlimited:
-		err = settings.readVPNUnlimited(r)
-	case constants.Wevpn:
-		err = settings.readWevpn(r)
-	}
-	if err != nil {
-		return err
-	}
-
-	return nil
-}
-
-func readOpenVPNProtocol(r reader) (tcp bool, err error) {
-	protocol, err := r.env.Inside("OPENVPN_PROTOCOL", []string{constants.TCP, constants.UDP},
-		params.Default(constants.UDP), params.RetroKeys([]string{"PROTOCOL"}, r.onRetroActive))
-	if err != nil {
-		return false, fmt.Errorf("environment variable OPENVPN_PROTOCOL: %w", err)
-	}
-	return protocol == constants.TCP, nil
-}
-
-const openvpnIntfRegexString = `^.*[0-9]$`
-
-var openvpnIntfRegexp = regexp.MustCompile(openvpnIntfRegexString)
-var errInterfaceNameNotValid = errors.New("interface name is not valid")
-
-func readInterface(env params.Interface) (intf string, err error) {
-	intf, err = env.Get("OPENVPN_INTERFACE", params.Default("tun0"))
-	if err != nil {
-		return "", fmt.Errorf("environment variable OPENVPN_INTERFACE: %w", err)
-	}
-
-	if !openvpnIntfRegexp.MatchString(intf) {
-		return "", fmt.Errorf("%w: does not match regex %s: %s",
-			errInterfaceNameNotValid, openvpnIntfRegexString, intf)
-	}
-
-	return intf, nil
-}

internal/configuration/openvpn_test.go

@@ -1,40 +0,0 @@
-package configuration
-
-import (
-	"encoding/json"
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-)
-
-func Test_OpenVPN_JSON(t *testing.T) {
-	t.Parallel()
-	in := OpenVPN{
-		Root:    true,
-		Flags:   []string{},
-		Ciphers: []string{},
-	}
-	data, err := json.MarshalIndent(in, "", "  ")
-	require.NoError(t, err)
-	assert.Equal(t, `{
-  "user": "",
-  "password": "",
-  "verbosity": 0,
-  "flags": [],
-  "mssfix": 0,
-  "run_as_root": true,
-  "ciphers": [],
-  "auth": "",
-  "conf_file": "",
-  "version": "",
-  "encryption_preset": "",
-  "ipv6": false,
-  "procuser": "",
-  "interface": ""
-}`, string(data))
-	var out OpenVPN
-	err = json.Unmarshal(data, &out)
-	require.NoError(t, err)
-	assert.Equal(t, in, out)
-}

internal/configuration/perfectprivacy.go

@@ -1,43 +0,0 @@
-package configuration
-
-import (
-	"fmt"
-
-	"github.com/qdm12/gluetun/internal/constants"
-)
-
-func (settings *Provider) readPerfectPrivacy(r reader) (err error) {
-	settings.Name = constants.Perfectprivacy
-	servers := r.servers.GetPerfectprivacy()
-
-	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
-	if err != nil {
-		return err
-	}
-
-	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.PerfectprivacyCityChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable CITY: %w", err)
-	}
-
-	return settings.ServerSelection.OpenVPN.readPerfectPrivacy(r)
-}
-
-func (settings *OpenVPNSelection) readPerfectPrivacy(r reader) (err error) {
-	settings.TCP, err = readOpenVPNProtocol(r)
-	if err != nil {
-		return err
-	}
-
-	portValidation := openvpnPortValidation{
-		tcp:        settings.TCP,
-		allowedTCP: []uint16{44, 443, 4433},
-		allowedUDP: []uint16{44, 443, 4433},
-	}
-	settings.CustomPort, err = readOpenVPNCustomPort(r, portValidation)
-	if err != nil {
-		return err
-	}
-
-	return nil
-}

internal/configuration/privado.go

@@ -1,39 +0,0 @@
-package configuration
-
-import (
-	"fmt"
-
-	"github.com/qdm12/gluetun/internal/constants"
-)
-
-func (settings *Provider) readPrivado(r reader) (err error) {
-	settings.Name = constants.Privado
-	servers := r.servers.GetPrivado()
-
-	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
-	if err != nil {
-		return err
-	}
-
-	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.PrivadoCountryChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable COUNTRY: %w", err)
-	}
-
-	settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", constants.PrivadoRegionChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable REGION: %w", err)
-	}
-
-	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.PrivadoCityChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable CITY: %w", err)
-	}
-
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.PrivadoHostnameChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
-	}
-
-	return nil
-}

internal/configuration/privateinternetaccess.go

@@ -1,75 +0,0 @@
-package configuration
-
-import (
-	"fmt"
-
-	"github.com/qdm12/gluetun/internal/constants"
-	"github.com/qdm12/golibs/params"
-)
-
-func (settings *Provider) readPrivateInternetAccess(r reader) (err error) {
-	settings.Name = constants.PrivateInternetAccess
-	servers := r.servers.GetPia()
-
-	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
-	if err != nil {
-		return err
-	}
-
-	settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", constants.PIAGeoChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable REGION: %w", err)
-	}
-
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.PIAHostnameChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
-	}
-
-	settings.ServerSelection.Names, err = r.env.CSVInside("SERVER_NAME", constants.PIANameChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable SERVER_NAME: %w", err)
-	}
-
-	settings.PortForwarding.Enabled, err = r.env.OnOff("PORT_FORWARDING", params.Default("off"))
-	if err != nil {
-		return fmt.Errorf("environment variable PORT_FORWARDING: %w", err)
-	}
-
-	if settings.PortForwarding.Enabled {
-		settings.PortForwarding.Filepath, err = r.env.Path("PORT_FORWARDING_STATUS_FILE",
-			params.Default("/tmp/gluetun/forwarded_port"), params.CaseSensitiveValue())
-		if err != nil {
-			return fmt.Errorf("environment variable PORT_FORWARDING_STATUS_FILE: %w", err)
-		}
-	}
-
-	return settings.ServerSelection.OpenVPN.readPrivateInternetAccess(r)
-}
-
-func (settings *OpenVPNSelection) readPrivateInternetAccess(r reader) (err error) {
-	settings.EncPreset, err = getPIAEncryptionPreset(r)
-	if err != nil {
-		return err
-	}
-
-	settings.CustomPort, err = readOpenVPNCustomPort(r, openvpnPortValidation{allAllowed: true})
-	if err != nil {
-		return err
-	}
-
-	return nil
-}
-
-func getPIAEncryptionPreset(r reader) (encryptionPreset string, err error) {
-	encryptionPreset, err = r.env.Inside("PIA_ENCRYPTION",
-		[]string{constants.PIAEncryptionPresetNone, constants.PIAEncryptionPresetNormal, constants.PIAEncryptionPresetStrong},
-		params.RetroKeys([]string{"ENCRYPTION"}, r.onRetroActive),
-		params.Default(constants.PIAEncryptionPresetStrong),
-	)
-	if err != nil {
-		return "", fmt.Errorf("environment variable PIA_ENCRYPTION: %w", err)
-	}
-
-	return encryptionPreset, nil
-}

internal/configuration/privatevpn.go

@@ -1,35 +0,0 @@
-package configuration
-
-import (
-	"fmt"
-
-	"github.com/qdm12/gluetun/internal/constants"
-)
-
-func (settings *Provider) readPrivatevpn(r reader) (err error) {
-	settings.Name = constants.Privatevpn
-	servers := r.servers.GetPrivatevpn()
-
-	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
-	if err != nil {
-		return err
-	}
-
-	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.PrivatevpnCountryChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable COUNTRY: %w", err)
-	}
-
-	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.PrivatevpnCityChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable CITY: %w", err)
-	}
-
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME",
-		constants.PrivatevpnHostnameChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
-	}
-
-	return settings.ServerSelection.OpenVPN.readProtocolAndPort(r)
-}

internal/configuration/protonvpn.go

@@ -1,51 +0,0 @@
-package configuration
-
-import (
-	"fmt"
-
-	"github.com/qdm12/gluetun/internal/constants"
-	"github.com/qdm12/golibs/params"
-)
-
-func (settings *Provider) readProtonvpn(r reader) (err error) {
-	settings.Name = constants.Protonvpn
-	servers := r.servers.GetProtonvpn()
-
-	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
-	if err != nil {
-		return err
-	}
-
-	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.ProtonvpnCountryChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable COUNTRY: %w", err)
-	}
-
-	settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", constants.ProtonvpnRegionChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable REGION: %w", err)
-	}
-
-	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.ProtonvpnCityChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable CITY: %w", err)
-	}
-
-	settings.ServerSelection.Names, err = r.env.CSVInside("SERVER_NAME", constants.ProtonvpnNameChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable SERVER_NAME: %w", err)
-	}
-
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME",
-		constants.ProtonvpnHostnameChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
-	}
-
-	settings.ServerSelection.FreeOnly, err = r.env.YesNo("FREE_ONLY", params.Default("no"))
-	if err != nil {
-		return fmt.Errorf("environment variable FREE_ONLY: %w", err)
-	}
-
-	return settings.ServerSelection.OpenVPN.readProtocolAndPort(r)
-}

internal/configuration/provider.go

@@ -1,248 +0,0 @@
-package configuration
-
-import (
-	"errors"
-	"fmt"
-	"net"
-	"strings"
-
-	"github.com/qdm12/gluetun/internal/constants"
-	"github.com/qdm12/golibs/params"
-)
-
-// Provider contains settings specific to a VPN provider.
-type Provider struct {
-	Name            string          `json:"name"`
-	ServerSelection ServerSelection `json:"server_selection"`
-	PortForwarding  PortForwarding  `json:"port_forwarding"`
-}
-
-func (settings *Provider) lines() (lines []string) {
-	if settings.Name == "" { // custom OpenVPN configuration
-		return nil
-	}
-
-	lines = append(lines, lastIndent+strings.Title(settings.Name)+" settings:")
-
-	for _, line := range settings.ServerSelection.toLines() {
-		lines = append(lines, indent+line)
-	}
-
-	if settings.PortForwarding.Enabled { // PIA
-		lines = append(lines, indent+lastIndent+"Port forwarding:")
-		for _, line := range settings.PortForwarding.lines() {
-			lines = append(lines, indent+indent+line)
-		}
-	}
-
-	return lines
-}
-
-var (
-	ErrInvalidVPNProvider = errors.New("invalid VPN provider")
-)
-
-func (settings *Provider) read(r reader, vpnType string) error {
-	err := settings.readVPNServiceProvider(r, vpnType)
-	if err != nil {
-		return err
-	}
-
-	switch settings.Name {
-	case constants.Custom:
-		err = settings.readCustom(r, vpnType)
-	case constants.Cyberghost:
-		err = settings.readCyberghost(r)
-	case constants.Expressvpn:
-		err = settings.readExpressvpn(r)
-	case constants.Fastestvpn:
-		err = settings.readFastestvpn(r)
-	case constants.HideMyAss:
-		err = settings.readHideMyAss(r)
-	case constants.Ipvanish:
-		err = settings.readIpvanish(r)
-	case constants.Ivpn:
-		err = settings.readIvpn(r)
-	case constants.Mullvad:
-		err = settings.readMullvad(r)
-	case constants.Nordvpn:
-		err = settings.readNordvpn(r)
-	case constants.Perfectprivacy:
-		err = settings.readPerfectPrivacy(r)
-	case constants.Privado:
-		err = settings.readPrivado(r)
-	case constants.PrivateInternetAccess:
-		err = settings.readPrivateInternetAccess(r)
-	case constants.Privatevpn:
-		err = settings.readPrivatevpn(r)
-	case constants.Protonvpn:
-		err = settings.readProtonvpn(r)
-	case constants.Purevpn:
-		err = settings.readPurevpn(r)
-	case constants.Surfshark:
-		err = settings.readSurfshark(r)
-	case constants.Torguard:
-		err = settings.readTorguard(r)
-	case constants.VPNUnlimited:
-		err = settings.readVPNUnlimited(r)
-	case constants.Vyprvpn:
-		err = settings.readVyprvpn(r)
-	case constants.Wevpn:
-		err = settings.readWevpn(r)
-	case constants.Windscribe:
-		err = settings.readWindscribe(r)
-	default:
-		return fmt.Errorf("%w: %s", ErrInvalidVPNProvider, settings.Name)
-	}
-	if err != nil {
-		return err
-	}
-
-	settings.ServerSelection.VPN = vpnType
-	return nil
-}
-
-func (settings *Provider) readVPNServiceProvider(r reader, vpnType string) (err error) {
-	var allowedVPNServiceProviders []string
-	switch vpnType {
-	case constants.OpenVPN:
-		allowedVPNServiceProviders = []string{
-			constants.Custom,
-			"cyberghost", constants.Expressvpn, "fastestvpn", "hidemyass", "ipvanish",
-			"ivpn", "mullvad", "nordvpn",
-			constants.Perfectprivacy, "privado", "pia", "private internet access", "privatevpn", "protonvpn",
-			"purevpn", "surfshark", "torguard", constants.VPNUnlimited, "vyprvpn",
-			constants.Wevpn, "windscribe"}
-	case constants.Wireguard:
-		allowedVPNServiceProviders = []string{
-			constants.Custom, constants.Ivpn,
-			constants.Mullvad, constants.Windscribe,
-		}
-	}
-
-	vpnsp, err := r.env.Inside("VPNSP", allowedVPNServiceProviders,
-		params.Default("private internet access"))
-	if err != nil {
-		return fmt.Errorf("environment variable VPNSP: %w", err)
-	}
-	if vpnsp == "pia" { // retro compatibility
-		vpnsp = "private internet access"
-	}
-
-	if settings.isOpenVPNCustomConfig(r.env) { // retro compatibility
-		vpnsp = constants.Custom
-	}
-
-	settings.Name = vpnsp
-
-	return nil
-}
-
-func commaJoin(slice []string) string {
-	return strings.Join(slice, ", ")
-}
-
-func protoToString(tcp bool) string {
-	if tcp {
-		return constants.TCP
-	}
-	return constants.UDP
-}
-
-func readTargetIP(env params.Interface) (targetIP net.IP, err error) {
-	targetIP, err = readIP(env, "OPENVPN_TARGET_IP")
-	if err != nil {
-		return nil, fmt.Errorf("environment variable OPENVPN_TARGET_IP: %w", err)
-	}
-	return targetIP, nil
-}
-
-type openvpnPortValidation struct {
-	allAllowed bool
-	tcp        bool
-	allowedTCP []uint16
-	allowedUDP []uint16
-}
-
-func readOpenVPNCustomPort(r reader, validation openvpnPortValidation) (
-	port uint16, err error) {
-	port, err = readPortOrZero(r.env, "OPENVPN_PORT")
-	if err != nil {
-		return 0, fmt.Errorf("environment variable OPENVPN_PORT: %w", err)
-	} else if port == 0 {
-		// Try using old variable name
-		port, err = readPortOrZero(r.env, "PORT")
-		if err != nil {
-			r.onRetroActive("PORT", "OPENVPN_PORT")
-			return 0, fmt.Errorf("environment variable PORT: %w", err)
-		}
-	}
-
-	if port == 0 || validation.allAllowed {
-		return port, nil
-	}
-
-	if validation.tcp {
-		for _, allowedPort := range validation.allowedTCP {
-			if port == allowedPort {
-				return port, nil
-			}
-		}
-		return 0, fmt.Errorf(
-			"environment variable PORT: %w: port %d for TCP protocol, can only be one of %s",
-			ErrInvalidPort, port, portsToString(validation.allowedTCP))
-	}
-	for _, allowedPort := range validation.allowedUDP {
-		if port == allowedPort {
-			return port, nil
-		}
-	}
-	return 0, fmt.Errorf(
-		"environment variable PORT: %w: port %d for UDP protocol, can only be one of %s",
-		ErrInvalidPort, port, portsToString(validation.allowedUDP))
-}
-
-// note: set allowed to an empty slice to allow all valid ports
-func readWireguardCustomPort(env params.Interface, allowed []uint16) (port uint16, err error) {
-	port, err = readPortOrZero(env, "WIREGUARD_ENDPOINT_PORT")
-	if err != nil {
-		return 0, fmt.Errorf("environment variable WIREGUARD_ENDPOINT_PORT: %w", err)
-	} else if port == 0 {
-		port, _ = readPortOrZero(env, "WIREGUARD_PORT")
-		if err == nil {
-			return port, nil // 0 or WIREGUARD_PORT value
-		}
-		return 0, nil // default 0
-	}
-
-	if len(allowed) == 0 {
-		return port, nil
-	}
-
-	for i := range allowed {
-		if allowed[i] == port {
-			return port, nil
-		}
-	}
-
-	return 0, fmt.Errorf(
-		"environment variable WIREGUARD_PORT: %w: port %d, can only be one of %s",
-		ErrInvalidPort, port, portsToString(allowed))
-}
-
-func portsToString(ports []uint16) string {
-	slice := make([]string, len(ports))
-	for i := range ports {
-		slice[i] = fmt.Sprint(ports[i])
-	}
-	return strings.Join(slice, ", ")
-}
-
-// isOpenVPNCustomConfig is for retro compatibility to set VPNSP=custom
-// if OPENVPN_CUSTOM_CONFIG is set.
-func (settings Provider) isOpenVPNCustomConfig(env params.Interface) (ok bool) {
-	s, _ := env.Get("VPN_TYPE")
-	isOpenVPN := s == constants.OpenVPN
-	s, _ = env.Get("OPENVPN_CUSTOM_CONFIG")
-	return isOpenVPN && s != ""
-}

internal/configuration/provider_test.go

@@ -1,462 +0,0 @@
-package configuration
-
-import (
-	"errors"
-	"testing"
-
-	"github.com/golang/mock/gomock"
-	"github.com/qdm12/gluetun/internal/constants"
-	"github.com/qdm12/golibs/params/mock_params"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-)
-
-var errDummy = errors.New("dummy")
-
-func Test_Provider_lines(t *testing.T) {
-	t.Parallel()
-
-	testCases := map[string]struct {
-		settings Provider
-		lines    []string
-	}{
-		"cyberghost": {
-			settings: Provider{
-				Name: constants.Cyberghost,
-				ServerSelection: ServerSelection{
-					VPN:       constants.OpenVPN,
-					Countries: []string{"a", "El country"},
-				},
-			},
-			lines: []string{
-				"|--Cyberghost settings:",
-				"   |--Countries: a, El country",
-				"   |--OpenVPN selection:",
-				"      |--Protocol: udp",
-			},
-		},
-		"expressvpn": {
-			settings: Provider{
-				Name: constants.Expressvpn,
-				ServerSelection: ServerSelection{
-					VPN:       constants.OpenVPN,
-					Hostnames: []string{"a", "b"},
-					Countries: []string{"c", "d"},
-					Cities:    []string{"e", "f"},
-				},
-			},
-			lines: []string{
-				"|--Expressvpn settings:",
-				"   |--Countries: c, d",
-				"   |--Cities: e, f",
-				"   |--Hostnames: a, b",
-				"   |--OpenVPN selection:",
-				"      |--Protocol: udp",
-			},
-		},
-		"fastestvpn": {
-			settings: Provider{
-				Name: constants.Fastestvpn,
-				ServerSelection: ServerSelection{
-					VPN:       constants.OpenVPN,
-					Hostnames: []string{"a", "b"},
-					Countries: []string{"c", "d"},
-				},
-			},
-			lines: []string{
-				"|--Fastestvpn settings:",
-				"   |--Countries: c, d",
-				"   |--Hostnames: a, b",
-				"   |--OpenVPN selection:",
-				"      |--Protocol: udp",
-			},
-		},
-		"hidemyass": {
-			settings: Provider{
-				Name: constants.HideMyAss,
-				ServerSelection: ServerSelection{
-					VPN:       constants.OpenVPN,
-					Countries: []string{"a", "b"},
-					Cities:    []string{"c", "d"},
-					Hostnames: []string{"e", "f"},
-				},
-			},
-			lines: []string{
-				"|--Hidemyass settings:",
-				"   |--Countries: a, b",
-				"   |--Cities: c, d",
-				"   |--Hostnames: e, f",
-				"   |--OpenVPN selection:",
-				"      |--Protocol: udp",
-			},
-		},
-		"ipvanish": {
-			settings: Provider{
-				Name: constants.Ipvanish,
-				ServerSelection: ServerSelection{
-					VPN:       constants.OpenVPN,
-					Countries: []string{"a", "b"},
-					Cities:    []string{"c", "d"},
-					Hostnames: []string{"e", "f"},
-				},
-			},
-			lines: []string{
-				"|--Ipvanish settings:",
-				"   |--Countries: a, b",
-				"   |--Cities: c, d",
-				"   |--Hostnames: e, f",
-				"   |--OpenVPN selection:",
-				"      |--Protocol: udp",
-			},
-		},
-		"ivpn": {
-			settings: Provider{
-				Name: constants.Ivpn,
-				ServerSelection: ServerSelection{
-					VPN:       constants.OpenVPN,
-					Countries: []string{"a", "b"},
-					Cities:    []string{"c", "d"},
-					Hostnames: []string{"e", "f"},
-				},
-			},
-			lines: []string{
-				"|--Ivpn settings:",
-				"   |--Countries: a, b",
-				"   |--Cities: c, d",
-				"   |--Hostnames: e, f",
-				"   |--OpenVPN selection:",
-				"      |--Protocol: udp",
-			},
-		},
-		"mullvad": {
-			settings: Provider{
-				Name: constants.Mullvad,
-				ServerSelection: ServerSelection{
-					VPN:       constants.OpenVPN,
-					Countries: []string{"a", "b"},
-					Cities:    []string{"c", "d"},
-					ISPs:      []string{"e", "f"},
-					OpenVPN: OpenVPNSelection{
-						CustomPort: 1,
-					},
-				},
-			},
-			lines: []string{
-				"|--Mullvad settings:",
-				"   |--Countries: a, b",
-				"   |--Cities: c, d",
-				"   |--ISPs: e, f",
-				"   |--OpenVPN selection:",
-				"      |--Protocol: udp",
-				"      |--Custom port: 1",
-			},
-		},
-		"nordvpn": {
-			settings: Provider{
-				Name: constants.Nordvpn,
-				ServerSelection: ServerSelection{
-					VPN:     constants.OpenVPN,
-					Regions: []string{"a", "b"},
-					Numbers: []uint16{1, 2},
-				},
-			},
-			lines: []string{
-				"|--Nordvpn settings:",
-				"   |--Regions: a, b",
-				"   |--Numbers: 1, 2",
-				"   |--OpenVPN selection:",
-				"      |--Protocol: udp",
-			},
-		},
-		"perfectprivacy": {
-			settings: Provider{
-				Name: constants.Perfectprivacy,
-				ServerSelection: ServerSelection{
-					VPN:    constants.OpenVPN,
-					Cities: []string{"a", "b"},
-				},
-			},
-			lines: []string{
-				"|--Perfect Privacy settings:",
-				"   |--Cities: a, b",
-				"   |--OpenVPN selection:",
-				"      |--Protocol: udp",
-			},
-		},
-		"privado": {
-			settings: Provider{
-				Name: constants.Privado,
-				ServerSelection: ServerSelection{
-					VPN:       constants.OpenVPN,
-					Hostnames: []string{"a", "b"},
-				},
-			},
-			lines: []string{
-				"|--Privado settings:",
-				"   |--Hostnames: a, b",
-				"   |--OpenVPN selection:",
-				"      |--Protocol: udp",
-			},
-		},
-		"privatevpn": {
-			settings: Provider{
-				Name: constants.Privatevpn,
-				ServerSelection: ServerSelection{
-					VPN:       constants.OpenVPN,
-					Hostnames: []string{"a", "b"},
-					Countries: []string{"c", "d"},
-					Cities:    []string{"e", "f"},
-				},
-			},
-			lines: []string{
-				"|--Privatevpn settings:",
-				"   |--Countries: c, d",
-				"   |--Cities: e, f",
-				"   |--Hostnames: a, b",
-				"   |--OpenVPN selection:",
-				"      |--Protocol: udp",
-			},
-		},
-		"protonvpn": {
-			settings: Provider{
-				Name: constants.Protonvpn,
-				ServerSelection: ServerSelection{
-					VPN:       constants.OpenVPN,
-					Countries: []string{"a", "b"},
-					Regions:   []string{"c", "d"},
-					Cities:    []string{"e", "f"},
-					Names:     []string{"g", "h"},
-					Hostnames: []string{"i", "j"},
-				},
-			},
-			lines: []string{
-				"|--Protonvpn settings:",
-				"   |--Countries: a, b",
-				"   |--Regions: c, d",
-				"   |--Cities: e, f",
-				"   |--Hostnames: i, j",
-				"   |--Names: g, h",
-				"   |--OpenVPN selection:",
-				"      |--Protocol: udp",
-			},
-		},
-		"private internet access": {
-			settings: Provider{
-				Name: constants.PrivateInternetAccess,
-				ServerSelection: ServerSelection{
-					VPN:     constants.OpenVPN,
-					Regions: []string{"a", "b"},
-					OpenVPN: OpenVPNSelection{
-						CustomPort: 1,
-					},
-				},
-				PortForwarding: PortForwarding{
-					Enabled:  true,
-					Filepath: string("/here"),
-				},
-			},
-			lines: []string{
-				"|--Private Internet Access settings:",
-				"   |--Regions: a, b",
-				"   |--OpenVPN selection:",
-				"      |--Protocol: udp",
-				"      |--Custom port: 1",
-				"   |--Port forwarding:",
-				"      |--File path: /here",
-			},
-		},
-		"purevpn": {
-			settings: Provider{
-				Name: constants.Purevpn,
-				ServerSelection: ServerSelection{
-					VPN:       constants.OpenVPN,
-					Regions:   []string{"a", "b"},
-					Countries: []string{"c", "d"},
-					Cities:    []string{"e", "f"},
-				},
-			},
-			lines: []string{
-				"|--Purevpn settings:",
-				"   |--Countries: c, d",
-				"   |--Regions: a, b",
-				"   |--Cities: e, f",
-				"   |--OpenVPN selection:",
-				"      |--Protocol: udp",
-			},
-		},
-		"surfshark": {
-			settings: Provider{
-				Name: constants.Surfshark,
-				ServerSelection: ServerSelection{
-					VPN:     constants.OpenVPN,
-					Regions: []string{"a", "b"},
-				},
-			},
-			lines: []string{
-				"|--Surfshark settings:",
-				"   |--Regions: a, b",
-				"   |--OpenVPN selection:",
-				"      |--Protocol: udp",
-			},
-		},
-		"torguard": {
-			settings: Provider{
-				Name: constants.Torguard,
-				ServerSelection: ServerSelection{
-					VPN:       constants.OpenVPN,
-					Countries: []string{"a", "b"},
-					Cities:    []string{"c", "d"},
-					Hostnames: []string{"e"},
-				},
-			},
-			lines: []string{
-				"|--Torguard settings:",
-				"   |--Countries: a, b",
-				"   |--Cities: c, d",
-				"   |--Hostnames: e",
-				"   |--OpenVPN selection:",
-				"      |--Protocol: udp",
-			},
-		},
-		constants.VPNUnlimited: {
-			settings: Provider{
-				Name: constants.VPNUnlimited,
-				ServerSelection: ServerSelection{
-					VPN:        constants.OpenVPN,
-					Countries:  []string{"a", "b"},
-					Cities:     []string{"c", "d"},
-					Hostnames:  []string{"e", "f"},
-					FreeOnly:   true,
-					StreamOnly: true,
-				},
-			},
-			lines: []string{
-				"|--Vpn Unlimited settings:",
-				"   |--Countries: a, b",
-				"   |--Cities: c, d",
-				"   |--Free servers only",
-				"   |--Stream servers only",
-				"   |--Hostnames: e, f",
-				"   |--OpenVPN selection:",
-				"      |--Protocol: udp",
-			},
-		},
-		"vyprvpn": {
-			settings: Provider{
-				Name: constants.Vyprvpn,
-				ServerSelection: ServerSelection{
-					VPN:     constants.OpenVPN,
-					Regions: []string{"a", "b"},
-				},
-			},
-			lines: []string{
-				"|--Vyprvpn settings:",
-				"   |--Regions: a, b",
-				"   |--OpenVPN selection:",
-				"      |--Protocol: udp",
-			},
-		},
-		"wevpn": {
-			settings: Provider{
-				Name: constants.Wevpn,
-				ServerSelection: ServerSelection{
-					VPN:       constants.OpenVPN,
-					Cities:    []string{"a", "b"},
-					Hostnames: []string{"c", "d"},
-					OpenVPN: OpenVPNSelection{
-						CustomPort: 1,
-					},
-				},
-			},
-			lines: []string{
-				"|--Wevpn settings:",
-				"   |--Cities: a, b",
-				"   |--Hostnames: c, d",
-				"   |--OpenVPN selection:",
-				"      |--Protocol: udp",
-				"      |--Custom port: 1",
-			},
-		},
-		"windscribe": {
-			settings: Provider{
-				Name: constants.Windscribe,
-				ServerSelection: ServerSelection{
-					VPN:       constants.OpenVPN,
-					Regions:   []string{"a", "b"},
-					Cities:    []string{"c", "d"},
-					Hostnames: []string{"e", "f"},
-					OpenVPN: OpenVPNSelection{
-						CustomPort: 1,
-					},
-				},
-			},
-			lines: []string{
-				"|--Windscribe settings:",
-				"   |--Regions: a, b",
-				"   |--Cities: c, d",
-				"   |--Hostnames: e, f",
-				"   |--OpenVPN selection:",
-				"      |--Protocol: udp",
-				"      |--Custom port: 1",
-			},
-		},
-	}
-
-	for name, testCase := range testCases {
-		testCase := testCase
-		t.Run(name, func(t *testing.T) {
-			t.Parallel()
-
-			lines := testCase.settings.lines()
-
-			assert.Equal(t, testCase.lines, lines)
-		})
-	}
-}
-
-func Test_readProtocol(t *testing.T) {
-	t.Parallel()
-
-	testCases := map[string]struct {
-		mockStr string
-		mockErr error
-		tcp     bool
-		err     error
-	}{
-		"error": {
-			mockErr: errDummy,
-			err:     errors.New("environment variable OPENVPN_PROTOCOL: dummy"),
-		},
-		"success": {
-			mockStr: "tcp",
-			tcp:     true,
-		},
-	}
-
-	for name, testCase := range testCases {
-		testCase := testCase
-		t.Run(name, func(t *testing.T) {
-			t.Parallel()
-			ctrl := gomock.NewController(t)
-
-			env := mock_params.NewMockInterface(ctrl)
-			env.EXPECT().
-				Inside("OPENVPN_PROTOCOL", []string{"tcp", "udp"}, gomock.Any(), gomock.Any()).
-				Return(testCase.mockStr, testCase.mockErr)
-			reader := reader{
-				env: env,
-			}
-
-			tcp, err := readOpenVPNProtocol(reader)
-
-			if testCase.err != nil {
-				require.Error(t, err)
-				assert.Equal(t, testCase.err.Error(), err.Error())
-			} else {
-				assert.NoError(t, err)
-			}
-
-			assert.Equal(t, testCase.tcp, tcp)
-		})
-	}
-}

internal/configuration/publicip.go

@@ -1,47 +0,0 @@
-package configuration
-
-import (
-	"fmt"
-	"strings"
-	"time"
-
-	"github.com/qdm12/golibs/params"
-)
-
-type PublicIP struct {
-	Period     time.Duration `json:"period"`
-	IPFilepath string        `json:"ip_filepath"`
-}
-
-func (settings *PublicIP) String() string {
-	return strings.Join(settings.lines(), "\n")
-}
-
-func (settings *PublicIP) lines() (lines []string) {
-	if settings.Period == 0 {
-		lines = append(lines, lastIndent+"Public IP getter: disabled")
-		return lines
-	}
-
-	lines = append(lines, lastIndent+"Public IP getter:")
-	lines = append(lines, indent+lastIndent+"Fetch period: "+settings.Period.String())
-	lines = append(lines, indent+lastIndent+"IP file: "+settings.IPFilepath)
-
-	return lines
-}
-
-func (settings *PublicIP) read(r reader) (err error) {
-	settings.Period, err = r.env.Duration("PUBLICIP_PERIOD", params.Default("12h"))
-	if err != nil {
-		return fmt.Errorf("environment variable PUBLICIP_PERIOD: %w", err)
-	}
-
-	settings.IPFilepath, err = r.env.Path("PUBLICIP_FILE", params.CaseSensitiveValue(),
-		params.Default("/tmp/gluetun/ip"),
-		params.RetroKeys([]string{"IP_STATUS_FILE"}, r.onRetroActive))
-	if err != nil {
-		return fmt.Errorf("environment variable PUBLICIP_FILE (or IP_STATUS_FILE): %w", err)
-	}
-
-	return nil
-}

internal/configuration/purevpn.go

@@ -1,39 +0,0 @@
-package configuration
-
-import (
-	"fmt"
-
-	"github.com/qdm12/gluetun/internal/constants"
-)
-
-func (settings *Provider) readPurevpn(r reader) (err error) {
-	settings.Name = constants.Purevpn
-	servers := r.servers.GetPurevpn()
-
-	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
-	if err != nil {
-		return err
-	}
-
-	settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", constants.PurevpnRegionChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable REGION: %w", err)
-	}
-
-	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.PurevpnCountryChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable COUNTRY: %w", err)
-	}
-
-	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.PurevpnCityChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable CITY: %w", err)
-	}
-
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.PurevpnHostnameChoices(servers))
-	if err != nil {
-		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
-	}
-
-	return settings.ServerSelection.OpenVPN.readProtocolOnly(r)
-}

internal/configuration/reader.go

@@ -1,134 +0,0 @@
-package configuration
-
-import (
-	"errors"
-	"fmt"
-	"net"
-	"strconv"
-	"strings"
-
-	"github.com/qdm12/gluetun/internal/models"
-	ovpnextract "github.com/qdm12/gluetun/internal/openvpn/extract"
-	"github.com/qdm12/golibs/params"
-	"github.com/qdm12/golibs/verification"
-)
-
-//go:generate mockgen -destination=warner_mock_test.go -package configuration . Warner
-
-type reader struct {
-	servers models.AllServers
-	env     params.Interface
-	warner  Warner
-	regex   verification.Regex
-	ovpnExt ovpnextract.Interface
-}
-
-type Warner interface {
-	Warn(s string)
-}
-
-func newReader(env params.Interface,
-	servers models.AllServers, warner Warner) reader {
-	return reader{
-		servers: servers,
-		env:     env,
-		warner:  warner,
-		regex:   verification.NewRegex(),
-		ovpnExt: ovpnextract.New(),
-	}
-}
-
-func (r *reader) onRetroActive(oldKey, newKey string) {
-	r.warner.Warn(
-		"You are using the old environment variable " + oldKey +
-			", please consider changing it to " + newKey)
-}
-
-var (
-	ErrInvalidPort = errors.New("invalid port")
-)
-
-func readCSVPorts(env params.Interface, key string) (ports []uint16, err error) {
-	s, err := env.Get(key)
-	if err != nil {
-		return nil, err
-	} else if s == "" {
-		return nil, nil
-	}
-
-	portsStr := strings.Split(s, ",")
-	ports = make([]uint16, len(portsStr))
-	for i, portStr := range portsStr {
-		portInt, err := strconv.Atoi(portStr)
-		if err != nil {
-			return nil, fmt.Errorf("%w: %s: %s", ErrInvalidPort, portStr, err)
-		} else if portInt <= 0 || portInt > 65535 {
-			return nil, fmt.Errorf("%w: %d: must be between 1 and 65535", ErrInvalidPort, portInt)
-		}
-		ports[i] = uint16(portInt)
-	}
-
-	return ports, nil
-}
-
-var (
-	ErrInvalidIPNet = errors.New("invalid IP network")
-)
-
-func readCSVIPNets(env params.Interface, key string, options ...params.OptionSetter) (
-	ipNets []net.IPNet, err error) {
-	s, err := env.Get(key, options...)
-	if err != nil {
-		return nil, err
-	} else if s == "" {
-		return nil, nil
-	}
-
-	ipNetsStr := strings.Split(s, ",")
-	ipNets = make([]net.IPNet, len(ipNetsStr))
-	for i, ipNetStr := range ipNetsStr {
-		_, ipNet, err := net.ParseCIDR(ipNetStr)
-		if err != nil {
-			return nil, fmt.Errorf("%w: %s: %s",
-				ErrInvalidIPNet, ipNetStr, err)
-		} else if ipNet == nil {
-			return nil, fmt.Errorf("%w: %s: subnet is nil", ErrInvalidIPNet, ipNetStr)
-		}
-		ipNets[i] = *ipNet
-	}
-
-	return ipNets, nil
-}
-
-var (
-	ErrInvalidIP = errors.New("invalid IP address")
-)
-
-func readIP(env params.Interface, key string) (ip net.IP, err error) {
-	s, err := env.Get(key)
-	if s == "" {
-		return nil, nil
-	} else if err != nil {
-		return nil, err
-	}
-
-	ip = net.ParseIP(s)
-	if ip == nil {
-		return nil, fmt.Errorf("%w: %s", ErrInvalidIP, s)
-	}
-
-	return ip, nil
-}
-
-func readPortOrZero(env params.Interface, key string) (port uint16, err error) {
-	s, err := env.Get(key, params.Default("0"))
-	if err != nil {
-		return 0, err
-	}
-
-	if s == "0" {
-		return 0, nil
-	}
-
-	return env.Port(key)
-}

internal/configuration/secrets.go

@@ -1,119 +0,0 @@
-package configuration
-
-import (
-	"errors"
-	"fmt"
-	"io"
-	"os"
-	"strings"
-
-	"github.com/qdm12/golibs/params"
-)
-
-var (
-	ErrGetSecretFilepath = errors.New("cannot get secret file path from env")
-	ErrReadSecretFile    = errors.New("cannot read secret file")
-	ErrSecretFileIsEmpty = errors.New("secret file is empty")
-	ErrReadNonSecretFile = errors.New("cannot read non secret file")
-	ErrFilesDoNotExist   = errors.New("files do not exist")
-)
-
-func cleanSuffix(value string) string {
-	value = strings.TrimSuffix(value, "\n")
-	value = strings.TrimSuffix(value, "\r")
-	return value
-}
-
-func (r *reader) getFromEnvOrSecretFile(envKey string, compulsory bool, retroKeys []string) (value string, err error) {
-	envOptions := []params.OptionSetter{
-		params.Compulsory(), // to fallback on file reading
-		params.CaseSensitiveValue(),
-		params.Unset(),
-		params.RetroKeys(retroKeys, r.onRetroActive),
-	}
-	value, envErr := r.env.Get(envKey, envOptions...)
-	if envErr == nil {
-		value = cleanSuffix(value)
-		return value, nil
-	}
-
-	secretFilepathEnvKey := envKey + "_SECRETFILE"
-	defaultSecretFile := "/run/secrets/" + strings.ToLower(envKey)
-	filepath, err := r.env.Get(secretFilepathEnvKey,
-		params.CaseSensitiveValue(),
-		params.Default(defaultSecretFile),
-	)
-	if err != nil {
-		return "", fmt.Errorf("%w: environment variable %s: %s",
-			ErrGetSecretFilepath, secretFilepathEnvKey, err)
-	}
-
-	file, fileErr := os.OpenFile(filepath, os.O_RDONLY, 0)
-	if os.IsNotExist(fileErr) {
-		if compulsory {
-			return "", fmt.Errorf("environment variable %s: %w", envKey, envErr)
-		}
-		return "", nil
-	} else if fileErr != nil {
-		return "", fmt.Errorf("%w: %s: %s", ErrReadSecretFile, filepath, fileErr)
-	}
-
-	b, err := io.ReadAll(file)
-	if err != nil {
-		return "", fmt.Errorf("%w: %s: %s", ErrReadSecretFile, filepath, err)
-	}
-
-	value = string(b)
-	value = cleanSuffix(value)
-	if compulsory && value == "" {
-		return "", fmt.Errorf("%s: %w", filepath, ErrSecretFileIsEmpty)
-	}
-
-	return value, nil
-}
-
-// Tries to read from the secret file then the non secret file.
-func (r *reader) getFromFileOrSecretFile(secretName, filepath string) (
-	b []byte, err error) {
-	defaultSecretFile := "/run/secrets/" + strings.ToLower(secretName)
-	key := strings.ToUpper(secretName) + "_SECRETFILE"
-	secretFilepath, err := r.env.Get(key,
-		params.CaseSensitiveValue(),
-		params.Default(defaultSecretFile),
-	)
-	if err != nil {
-		return b, fmt.Errorf("environment variable %s: %w: %s", key, ErrGetSecretFilepath, err)
-	}
-
-	b, err = readFromFile(secretFilepath)
-	if err != nil && !os.IsNotExist(err) {
-		return b, fmt.Errorf("%w: %s", ErrReadSecretFile, err)
-	} else if err == nil {
-		return b, nil
-	}
-
-	// Secret file does not exist, try the non secret file
-	b, err = readFromFile(filepath)
-	if err != nil && !os.IsNotExist(err) {
-		return nil, fmt.Errorf("%w: %s", ErrReadSecretFile, err)
-	} else if err == nil {
-		return b, nil
-	}
-	return nil, fmt.Errorf("%w: %s and %s", ErrFilesDoNotExist, secretFilepath, filepath)
-}
-
-func readFromFile(filepath string) (b []byte, err error) {
-	file, err := os.Open(filepath)
-	if err != nil {
-		return nil, err
-	}
-	b, err = io.ReadAll(file)
-	if err != nil {
-		_ = file.Close()
-		return nil, err
-	}
-	if err := file.Close(); err != nil {
-		return nil, err
-	}
-	return b, nil
-}