[feature] Make client IP logging configurable (#1799)

cmd/gotosocial/action/server/server.go

@@ -162,7 +162,7 @@
 	middlewares = append(middlewares, []gin.HandlerFunc{
 		// note: hooks adding ctx fields must be ABOVE
 		// the logger, otherwise won't be accessible.
-		middleware.Logger(),
+		middleware.Logger(config.GetLogClientIP()),
 		middleware.UserAgent(),
 		middleware.CORS(),
 		middleware.ExtraHeaders(),

cmd/gotosocial/action/testrig/testrig.go

@@ -107,7 +107,7 @@
 		middlewares = append(middlewares, tracing.InstrumentGin())
 	}
 	middlewares = append(middlewares, []gin.HandlerFunc{
-		middleware.Logger(),
+		middleware.Logger(config.GetLogClientIP()),
 		middleware.UserAgent(),
 		middleware.CORS(),
 		middleware.ExtraHeaders(),

example/config.yaml

@@ -30,6 +30,11 @@ log-level: "info"
 # Default: false
 log-db-queries: false
 
+# Bool. Include the client IP in the emitted log lines
+# Options: [true, false]
+# Default: true
+log-client-ip: true
+
 # String. Application name to use internally.
 # Examples: ["My Application","gotosocial"]
 # Default: "gotosocial"
@@ -766,10 +771,6 @@ syslog-address: "localhost:514"
 ##### OBSERVABILITY SETTINGS #####
 ##################################
 
-# Bool. Enable generation/parsing of a request ID for each received HTTP Request.
-# Default: true
-request-id-enabled: true
-
 # String. Header name to use to extract a request or trace ID from. Typically set by a
 # loadbalancer or proxy.
 # Default: "X-Request-Id"

internal/config/config.go

@@ -46,6 +46,7 @@ func fieldtag(field, tag string) string {
 type Configuration struct {
 	LogLevel        string   `name:"log-level" usage:"Log level to run at: [trace, debug, info, warn, fatal]"`
 	LogDbQueries    bool     `name:"log-db-queries" usage:"Log database queries verbosely when log-level is trace or debug"`
+	LogClientIP     bool     `name:"log-client-ip" usage:"Include the client IP in logs"`
 	ApplicationName string   `name:"application-name" usage:"Name of the application, used in various places internally"`
 	LandingPageUser string   `name:"landing-page-user" usage:"the user that should be shown on the instance's landing page"`
 	ConfigPath      string   `name:"config-path" usage:"Path to a file containing gotosocial configuration. Values set in this file will be overwritten by values set as env vars or arguments"`

internal/config/defaults.go

@@ -198,4 +198,6 @@
 	AdminMediaPruneDryRun: true,
 
 	RequestIDHeader: "X-Request-Id",
+
+	LogClientIP: true,
 }

internal/config/helpers.gen.go

@@ -3679,3 +3679,28 @@ func GetRequestIDHeader() string { return global.GetRequestIDHeader() }
 
 // SetRequestIDHeader safely sets the value for global configuration 'RequestIDHeader' field
 func SetRequestIDHeader(v string) { global.SetRequestIDHeader(v) }
+
+// GetLogClientIP safely fetches the Configuration value for state's 'LogClientIP' field
+func (st *ConfigState) GetLogClientIP() (v bool) {
+	st.mutex.Lock()
+	v = st.config.LogClientIP
+	st.mutex.Unlock()
+	return
+}
+
+// SetLogClientIP safely sets the Configuration value for state's 'LogClientIP' field
+func (st *ConfigState) SetLogClientIP(v bool) {
+	st.mutex.Lock()
+	defer st.mutex.Unlock()
+	st.config.LogClientIP = v
+	st.reloadToViper()
+}
+
+// LogClientIPFlag returns the flag name for the 'LogClientIP' field
+func LogClientIPFlag() string { return "log-client-ip" }
+
+// GetLogClientIP safely fetches the value for global configuration 'LogClientIP' field
+func GetLogClientIP() bool { return global.GetLogClientIP() }
+
+// SetLogClientIP safely sets the value for global configuration 'LogClientIP' field
+func SetLogClientIP(v bool) { global.SetLogClientIP(v) }

internal/gtscontext/log_hooks.go

@@ -34,7 +34,7 @@ func init() {
 		}
 		return kvs
 	})
-	// Client IP middleware hook.
+	// Public Key ID middleware hook.
 	log.Hook(func(ctx context.Context, kvs []kv.Field) []kv.Field {
 		if id := PublicKeyID(ctx); id != "" {
 			return append(kvs, kv.Field{K: "pubKeyID", V: id})

internal/middleware/logger.go

@@ -31,7 +31,7 @@
 )
 
 // Logger returns a gin middleware which provides request logging and panic recovery.
-func Logger() gin.HandlerFunc {
+func Logger(logClientIP bool) gin.HandlerFunc {
 	return func(c *gin.Context) {
 		// Initialize the logging fields
 		fields := make(kv.Fields, 5, 7)
@@ -72,10 +72,7 @@ func Logger() gin.HandlerFunc {
 			fields[2] = kv.Field{"method", c.Request.Method}
 			fields[3] = kv.Field{"statusCode", code}
 			fields[4] = kv.Field{"path", path}
-			if includeClientIP := true; includeClientIP {
+			if logClientIP {
-				// TODO: make this configurable.
-				//
-				// Include clientIP if enabled.
 				fields = append(fields, kv.Field{
 					"clientIP", c.ClientIP(),
 				})

test/envparsing.sh

@@ -98,6 +98,7 @@ EXPECT=$(cat <<"EOF"
     "letsencrypt-email-address": "",
     "letsencrypt-enabled": true,
     "letsencrypt-port": 80,
+    "log-client-ip": false,
     "log-db-queries": true,
     "log-level": "info",
     "media-description-max-chars": 5000,
@@ -170,6 +171,7 @@ EOF
 # ensure that these are parsed without panic
 OUTPUT=$(GTS_LOG_LEVEL='info' \
 GTS_LOG_DB_QUERIES=true \
+GTS_LOG_CLIENT_IP=false \
 GTS_APPLICATION_NAME=gts \
 GTS_LANDING_PAGE_USER=admin \
 GTS_HOST=example.com \