a6f00f2fb2
- Fix Slowloris attacks on HTTP servers - Force set default of 5 minutes for pprof read timeout - Change `ShutdownTimeout` to time.Duration since it cannot be set to 0
102 lines
3.4 KiB
Go
102 lines
3.4 KiB
Go
package settings
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import (
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"fmt"
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"os"
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"time"
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"github.com/qdm12/gluetun/internal/configuration/settings/helpers"
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"github.com/qdm12/gotree"
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"github.com/qdm12/govalid/address"
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)
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// Health contains settings for the healthcheck and health server.
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type Health struct {
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// ServerAddress is the listening address
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// for the health check server.
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// It cannot be the empty string in the internal state.
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ServerAddress string
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// ReadHeaderTimeout is the HTTP server header read timeout
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// duration of the HTTP server. It defaults to 100 milliseconds.
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ReadHeaderTimeout time.Duration
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// ReadTimeout is the HTTP read timeout duration of the
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// HTTP server. It defaults to 500 milliseconds.
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ReadTimeout time.Duration
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// TargetAddress is the address (host or host:port)
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// to TCP dial to periodically for the health check.
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// It cannot be the empty string in the internal state.
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TargetAddress string
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VPN HealthyWait
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}
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func (h Health) Validate() (err error) {
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uid := os.Getuid()
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_, err = address.Validate(h.ServerAddress,
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address.OptionListening(uid))
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if err != nil {
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return fmt.Errorf("server listening address is not valid: %w", err)
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}
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err = h.VPN.validate()
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if err != nil {
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return fmt.Errorf("health VPN settings: %w", err)
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}
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return nil
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}
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func (h *Health) copy() (copied Health) {
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return Health{
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ServerAddress: h.ServerAddress,
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ReadHeaderTimeout: h.ReadHeaderTimeout,
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ReadTimeout: h.ReadTimeout,
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TargetAddress: h.TargetAddress,
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VPN: h.VPN.copy(),
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}
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}
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// MergeWith merges the other settings into any
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// unset field of the receiver settings object.
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func (h *Health) MergeWith(other Health) {
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h.ServerAddress = helpers.MergeWithString(h.ServerAddress, other.ServerAddress)
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h.ReadHeaderTimeout = helpers.MergeWithDuration(h.ReadHeaderTimeout, other.ReadHeaderTimeout)
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h.ReadTimeout = helpers.MergeWithDuration(h.ReadTimeout, other.ReadTimeout)
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h.TargetAddress = helpers.MergeWithString(h.TargetAddress, other.TargetAddress)
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h.VPN.mergeWith(other.VPN)
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}
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// OverrideWith overrides fields of the receiver
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// settings object with any field set in the other
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// settings.
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func (h *Health) OverrideWith(other Health) {
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h.ServerAddress = helpers.OverrideWithString(h.ServerAddress, other.ServerAddress)
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h.ReadHeaderTimeout = helpers.OverrideWithDuration(h.ReadHeaderTimeout, other.ReadHeaderTimeout)
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h.ReadTimeout = helpers.OverrideWithDuration(h.ReadTimeout, other.ReadTimeout)
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h.TargetAddress = helpers.OverrideWithString(h.TargetAddress, other.TargetAddress)
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h.VPN.overrideWith(other.VPN)
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}
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func (h *Health) SetDefaults() {
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h.ServerAddress = helpers.DefaultString(h.ServerAddress, "127.0.0.1:9999")
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const defaultReadHeaderTimeout = 100 * time.Millisecond
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h.ReadHeaderTimeout = helpers.DefaultDuration(h.ReadHeaderTimeout, defaultReadHeaderTimeout)
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const defaultReadTimeout = 500 * time.Millisecond
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h.ReadTimeout = helpers.DefaultDuration(h.ReadTimeout, defaultReadTimeout)
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h.TargetAddress = helpers.DefaultString(h.TargetAddress, "cloudflare.com:443")
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h.VPN.setDefaults()
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}
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func (h Health) String() string {
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return h.toLinesNode().String()
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}
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func (h Health) toLinesNode() (node *gotree.Node) {
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node = gotree.New("Health settings:")
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node.Appendf("Server listening address: %s", h.ServerAddress)
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node.Appendf("Target address: %s", h.TargetAddress)
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node.Appendf("Read header timeout: %s", h.ReadHeaderTimeout)
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node.Appendf("Read timeout: %s", h.ReadTimeout)
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node.AppendNode(h.VPN.toLinesNode("VPN"))
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return node
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}
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