135 lines
3.7 KiB
Go
135 lines
3.7 KiB
Go
package provider
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import (
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"context"
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"fmt"
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"net"
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"strings"
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"github.com/qdm12/golibs/files"
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"github.com/qdm12/private-internet-access-docker/internal/constants"
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"github.com/qdm12/private-internet-access-docker/internal/models"
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)
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type windscribe struct {
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fileManager files.FileManager
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}
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func newWindscribe(fileManager files.FileManager) *windscribe {
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return &windscribe{fileManager: fileManager}
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}
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func (w *windscribe) GetOpenVPNConnections(selection models.ServerSelection) (connections []models.OpenVPNConnection, err error) {
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var IPs []net.IP
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for _, server := range constants.WindscribeServers() {
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if strings.EqualFold(server.Region, selection.Region) {
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IPs = server.IPs
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}
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}
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if len(IPs) == 0 {
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return nil, fmt.Errorf("no IP found for region %q", selection.Region)
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}
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if selection.TargetIP != nil {
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found := false
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for i := range IPs {
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if IPs[i].Equal(selection.TargetIP) {
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found = true
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break
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}
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}
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if !found {
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return nil, fmt.Errorf("target IP address %q not found in IP addresses", selection.TargetIP)
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}
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IPs = []net.IP{selection.TargetIP}
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}
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var port uint16
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switch {
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case selection.CustomPort > 0:
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port = selection.CustomPort
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case selection.Protocol == constants.TCP:
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port = 1194
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case selection.Protocol == constants.UDP:
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port = 443
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default:
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return nil, fmt.Errorf("protocol %q is unknown", selection.Protocol)
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}
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for _, IP := range IPs {
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connections = append(connections, models.OpenVPNConnection{IP: IP, Port: port, Protocol: selection.Protocol})
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}
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return connections, nil
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}
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func (w *windscribe) BuildConf(connections []models.OpenVPNConnection, verbosity, uid, gid int, root bool, cipher, auth string, extras models.ExtraConfigOptions) (err error) {
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if len(cipher) == 0 {
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cipher = aes256cbc
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}
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if len(auth) == 0 {
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auth = "sha512"
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}
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lines := []string{
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"client",
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"dev tun",
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"nobind",
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"persist-key",
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"remote-cert-tls server",
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// Windscribe specific
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"resolv-retry infinite",
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"comp-lzo",
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"key-direction 1",
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"script-security 2",
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// Added constant values
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"auth-nocache",
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"mute-replay-warnings",
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"pull-filter ignore \"auth-token\"", // prevent auth failed loops
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"auth-retry nointeract",
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"remote-random",
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"suppress-timestamps",
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// Modified variables
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fmt.Sprintf("verb %d", verbosity),
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fmt.Sprintf("auth-user-pass %s", constants.OpenVPNAuthConf),
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fmt.Sprintf("proto %s", string(connections[0].Protocol)),
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fmt.Sprintf("cipher %s", cipher),
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fmt.Sprintf("auth %s", auth),
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}
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if strings.HasSuffix(cipher, "-gcm") {
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lines = append(lines, "ncp-ciphers AES-256-GCM:AES-256-CBC:AES-128-GCM")
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}
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if !root {
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lines = append(lines, "user nonrootuser")
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}
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for _, connection := range connections {
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lines = append(lines, fmt.Sprintf("remote %s %d", connection.IP.String(), connection.Port))
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}
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lines = append(lines, []string{
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"<ca>",
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"-----BEGIN CERTIFICATE-----",
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constants.WindscribeCertificate,
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"-----END CERTIFICATE-----",
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"</ca>",
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}...)
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lines = append(lines, []string{
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"<tls-auth>",
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"-----BEGIN OpenVPN Static key V1-----",
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constants.WindscribeOpenvpnStaticKeyV1,
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"-----END OpenVPN Static key V1-----",
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"</tls-auth>",
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"",
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}...)
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return w.fileManager.WriteLinesToFile(string(constants.OpenVPNConf), lines, files.Ownership(uid, gid), files.Permissions(0400))
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}
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func (w *windscribe) GetPortForward() (port uint16, err error) {
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panic("port forwarding is not supported for windscribe")
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}
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func (w *windscribe) WritePortForward(filepath models.Filepath, port uint16, uid, gid int) (err error) {
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panic("port forwarding is not supported for windscribe")
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}
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func (w *windscribe) AllowPortForwardFirewall(ctx context.Context, device models.VPNDevice, port uint16) (err error) {
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panic("port forwarding is not supported for windscribe")
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}
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