lambda error

lib/httpserver/httpserver.cpp

 
   return true;
 }
+
+
+bool HTTPServer::addRootFileHandler_ls() {
+  logf("addRootFileHandler_ls: %s\n\r", rootDir);
+  Dir root = LittleFS.openDir(rootDir);
+
+  while (root.next()) {
+    const String& fName = "/" + root.fileName();
+    const String& fName_gz = "/" + root.fileName() + ".gz";
+    Serial.printf("Register Callback for: %s @ %s\n\r",
+         fName.c_str(), fName_gz.c_str());
+
+    // https://stackoverflow.com/questions/7627098/what-is-a-lambda-expression-in-c11     
+    on(fName, [this, fName, fName_gz]() {
+      
+      logf("addRootFileHandler_ls: %s\n\r", rootDir);
+      File f = open(fName_gz.c_str());
+      if (f)
+        streamFile(f, mime::getContentType(fName));
+      else 
+        send(404, "text/plain", "Failed to open file for reading");
+    });
+  }
+  return true;
+}

lib/httpserver/httpserver.h

 
 #include "filesys.h"
 #include <ESP8266WebServer.h>
+#include <stdarg.h>
+
+#define LOG_STR "[HTTPServer]"
+
 
 class HTTPServer : public ESP8266WebServer {
 private:
-    const char* rootDir;
+    const char* rootDir = "/";
  
     bool addRootFileHandler();
+    bool addRootFileHandler_ls();
     bool formatFS() {
         return format_fs();
     }
     void listRoot() {
         ls(rootDir);
     }
+    void logf(const char *format, ...) {
+        va_list args;
+        va_start(args, format);
+        Serial.print(LOG_STR);
+        Serial.printf(format, args);
+        va_end(args);
+    }
 
 public:
     HTTPServer(const int _port, const char* _rootDir) :
         this->listRoot();
         Serial.printf("\n\r");
 
-        // https://stackoverflow.com/questions/7627098/what-is-a-lambda-expression-in-c11
-        on("/compress.html", [this]() {
-            File f = open("/compress.html.gz");
-            if (!f) {
-                Serial.println("Failed to open file for reading");
-                send(404, "text/plain", "Failed to open file for reading");
-            }
-            else
-            {
-                Serial.println("Streaming /compress.html.gz to client");
-                const String cont = "text/html";
-                streamFile(f, cont);
-            }
-        });
-        on("/comp.html", [this]() {
-            File f = open("/comp.html.gz");
-            if (!f) {
-                Serial.println("Failed to open file for reading");
-                send(404, "text/plain", "Failed to open file for reading");
-            }
-            else
-            {
-                Serial.println("Streaming /comp.html.gz to client");
-                const String cont = "text/html";
-                streamFile(f, cont);
-            }
-        });       
+        // on("/compress.html", [this]() {
+        //     File f = open("/compress.html.gz");
+        //     if (!f) {
+        //         Serial.println("Failed to open file for reading");
+        //         send(404, "text/plain", "Failed to open file for reading");
+        //     }
+        //     else
+        //     {
+        //         Serial.println("Streaming /compress.html.gz to client");
+        //         const String cont = "text/html";
+        //         streamFile(f, cont);
+        //     }
+        //     f.close();
+        // });
+        // on("/comp.html", [this]() {
+        //     File f = open("/comp.html.gz");
+        //     if (!f) {
+        //         Serial.println("Failed to open file for reading");
+        //         send(404, "text/plain", "Failed to open file for reading");
+        //     }
+        //     else
+        //     {
+        //         Serial.println("Streaming /comp.html.gz to client");
+        //         const String cont = "text/html";
+        //         streamFile(f, cont);
+        //     }
+        //     f.close();
+        // });       
         
         on("/terminal", [this]() {
             String log_msg = "terminal: millis: ";
             send(200, "text/plain", log_msg);
         });
 
+        // default handler
         onNotFound([this]() {
             String message = "File Not Found\n\n";
             message += "URI: ";
             send(404, "text/plain", message);
         });
 
-        if( this->addRootFileHandler() ){
+        if( this->addRootFileHandler_ls() ){
             this->begin();
             Serial.printf("[HTTPServer] Server active on Port 80 !\n\r");
             return true;