feat(config): make data prefix toggleable

fixes #51

etc/default/webhookd.env

@@ -8,6 +8,9 @@
 # Output hook execution logs to server logs, default is false
 #WHD_HOOK_LOG_OUTPUT=false
 
+# Prefix GET responses with "data:", default is true 
+#WHD_HOOK_PREFIX=true
+
 # Maximum hook execution time in second, default is 10
 #WHD_HOOK_TIMEOUT=10
 

pkg/api/index.go

@@ -20,6 +20,7 @@ var (
 	defaultTimeout int
 	scriptDir      string
 	outputDir      string
+	prefixEnabled  bool
 )
 
 func atoiFallback(str string, fallback int) int {
@@ -34,6 +35,7 @@ func index(conf *config.Config) http.Handler {
 	defaultTimeout = conf.HookTimeout
 	scriptDir = conf.ScriptDir
 	outputDir = conf.HookLogDir
+	prefixEnabled = conf.HookPrefix
 	return http.HandlerFunc(webhookHandler)
 }
 
@@ -105,7 +107,7 @@ func triggerWebhook(w http.ResponseWriter, r *http.Request) {
 			break
 		}
 
-		if r.Method == "GET" {
+		if r.Method == "GET" && prefixEnabled {
 			fmt.Fprintf(w, "data: %s\n\n", msg) // Send SSE response
 		} else {
 			fmt.Fprintf(w, "%s\n", msg) // Send chunked response

pkg/config/config.go

@@ -16,6 +16,7 @@ type Config struct {
 	HookTimeout     int    `flag:"hook-timeout" desc:"Maximum hook execution time in second" default:"10"`
 	HookLogDir      string `flag:"hook-log-dir" desc:"Hook execution logs location" default:""`
 	HookLogOutput   bool   `flag:"hook-log-output" desc:"Output hook execution logs to server logs" default:"false"`
+	HookPrefix      bool   `flag:"hook-prefix" desc:"Prefix GET responses" default:"true"`
 	ScriptDir       string `flag:"scripts" desc:"Scripts location" default:"scripts"`
 	PasswdFile      string `flag:"passwd-file" desc:"Password file for basic HTTP authentication" default:".htpasswd"`
 	LogLevel        string `flag:"log-level" desc:"Log level (debug, info, warn, error)" default:"info"`