add ip parameter

Author: timzaak

README.md

@@ -45,7 +45,7 @@ docker run --rm \
   ghcr.io/timzaak/log-http-proxy:latest
 
 ```
-> Open your browser and navigate to http://127.0.0.1:9000 to view traffic logs.
+> Open your browser and navigate to `http://127.0.0.1:9000` to view traffic logs. or with ip `http://127.0.0.1:9000?ip=${http client ip}`
 
 <img src="/doc/usage.png" alt="Usage screenshot" width="500" /> 
 

src/main/scala/com/timzaak/proxy/LogWebViewer.scala

@@ -36,10 +36,11 @@ class LogWebViewer(certPath: Option[String])(using system: ActorSystem) {
 
   private val viewerEndpoint = endpoint.get
     .in("")
+    .in(query[Option[String]]("ip"))
     .in(extractFromRequest(identity))
     .out(htmlBodyUtf8)
-    .serverLogicSuccess { request =>
-      val ip = extractClientIP(request)
+    .serverLogicSuccess { (ipParam, request) =>
+      val ip = ipParam.getOrElse(extractClientIP(request))
       val certDesc = certPath match {
         case Some(_) =>
           s"""<p>the server use self signed cert, you may need to register the self signed rootCA.pem to your system. </p>