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The plaintext listener bound `:PORT`, so it answered on every interface with no way to say otherwise. That published the admin UI and the unauthenticated receiver in cleartext beside whatever TLS proxy was in front of them, reachable from any host that could route to the machine. BIND_ADDRESS now selects the address. The binary defaults to 127.0.0.1, which is the safe answer for a bare host: reaching webhooker from elsewhere becomes a deliberate act. The image sets 0.0.0.0, which is the correct answer inside a container, where the network namespace is already the boundary and exposure is decided by the publish flag instead — so `-p 127.0.0.1:8080:8080` is what the README shows. Existing container deployments are unaffected. Only IP address literals are accepted: hostnames, host:port and CIDR blocks abort startup naming the variable and the value, and a literal that is not an address of this host fails at listen and exits non-zero. The http.Server is now built in New rather than in the serving goroutine, and sentryEnabled is atomic. Both fields were written by the serving goroutine and read by the fx stop hook with nothing ordering them, and the OnStart hook returns before that goroutine has necessarily run: cleanShutdown could dereference a nil httpServer on an early SIGTERM, and both reads raced. No test started and stopped the server, so nothing observed it. Closes #226. README gains a "Deployment behind a reverse proxy" section: a working nginx server block, and the five things that are silent when wrong — bind or firewall the app port, WEBHOOKER_ENVIRONMENT=prod, TRUSTED_PROXIES, Host as $http_host rather than $host, and keeping the proxy's access log because webhooker's own records only the proxy.
63 lines
1.9 KiB
Go
63 lines
1.9 KiB
Go
package config
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import "log/slog"
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// This file exposes the unexported environment parsing helpers to
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// the external config_test package so each helper can be covered by
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// its own table-driven test without weakening the package API.
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// WarnSharedRateLimitBucketForTest loads a Config from the current
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// environment and emits its startup warnings to log. The real logger
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// writes to stdout, so this lets the warning's firing condition be
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// asserted against a handler the test controls.
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func WarnSharedRateLimitBucketForTest(log *slog.Logger) error {
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c, err := loadFromEnv()
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if err != nil {
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return err
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}
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c.warnSharedRateLimitBucket(log)
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return nil
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}
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// WarnEgressAllowlistForTest loads a Config from the current
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// environment and emits its egress-allowlist startup warning to
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// log, so a test can assert both that the warning fires only when
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// the list is non-empty and that it names the blocks it opened.
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func WarnEgressAllowlistForTest(log *slog.Logger) error {
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c, err := loadFromEnv()
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if err != nil {
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return err
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}
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c.warnEgressAllowlist(log)
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return nil
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}
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// EnvBoolForTest exposes envBool.
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func EnvBoolForTest(key string, defaultValue bool) (bool, error) {
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return envBool(key, defaultValue)
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}
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// EnvPositiveIntForTest exposes envPositiveInt.
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func EnvPositiveIntForTest(key string, defaultValue int) (int, error) {
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return envPositiveInt(key, defaultValue)
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}
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// EnvPortForTest exposes envPort.
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func EnvPortForTest(key string, defaultValue int) (int, error) {
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return envPort(key, defaultValue)
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}
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// EnvBindAddressForTest exposes envBindAddress.
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func EnvBindAddressForTest(key, defaultValue string) (string, error) {
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return envBindAddress(key, defaultValue)
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}
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// DefaultBindAddressForTest exposes the compiled-in BIND_ADDRESS
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// default, so a test pins the documented value rather than repeating
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// a literal that could drift from it.
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const DefaultBindAddressForTest = defaultBindAddress
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