Новый браузер /edit. Основное: легче, папки, вид

include/StandWebServer.h

@@ -4,12 +4,17 @@
 #ifdef STANDARD_WEB_SERVER
 extern void standWebServerInit();
 extern bool handleFileRead(String path);
-extern String getContentType(String filename);
+//extern String getContentType(String filename);
 //#ifdef REST_FILE_OPERATIONS
 extern void handleFileUpload();
 extern void handleFileDelete();
 extern void handleFileCreate();
 extern void handleFileList();
-void printDirectory(File dir, String& out);
+//void printDirectory(File dir, String& out);
+extern void handleStatus();
+extern void handleGetEdit();
+extern void replyOK ();
+extern void handleNotFound ();
+
 //#endif
 #endif

src/StandWebServer.cpp

@@ -1,9 +1,17 @@
 #include "StandWebServer.h"
 #ifdef STANDARD_WEB_SERVER
 
-File fsUploadFile;
+File uploadFile;
+String unsupportedFiles = String();
 
-void standWebServerInit() {
+static const char TEXT_PLAIN[] PROGMEM = "text/plain";
+static const char FS_INIT_ERROR[] PROGMEM = "FS INIT ERROR";
+static const char FILE_NOT_FOUND[] PROGMEM = "FileNotFound";
+//static bool fsOK;
+//const char* fsName = "LittleFS";
+
+void standWebServerInit()
+{
     //  Кэшировать файлы для быстрой работы
     HTTP.serveStatic("/bundle.js", FileFS, "/", "max-age=31536000");      // кеширование на 1 год
     HTTP.serveStatic("/bundle.css", FileFS, "/", "max-age=31536000");     // кеширование на 1 год
@@ -41,18 +49,18 @@ void standWebServerInit() {
 
     HTTP.on("/set", HTTP_GET, []() {
         if (HTTP.hasArg(F("routerssid")) && WiFi.getMode() == WIFI_AP) {
-            jsonWriteStr(settingsFlashJson, F("routerssid"), HTTP.arg(F("routerssid")));
-            syncSettingsFlashJson();
-            HTTP.send(200, "text/plain", "ok");
-        }
+                    jsonWriteStr(settingsFlashJson, F("routerssid"), HTTP.arg(F("routerssid")));
+                    syncSettingsFlashJson();
+                    HTTP.send(200, "text/plain", "ok");
+                }
 
         if (HTTP.hasArg(F("routerpass")) && WiFi.getMode() == WIFI_AP) {
-            jsonWriteStr(settingsFlashJson, F("routerpass"), HTTP.arg(F("routerpass")));
-            syncSettingsFlashJson();
-            HTTP.send(200, "text/plain", "ok");
-        }
+                    jsonWriteStr(settingsFlashJson, F("routerpass"), HTTP.arg(F("routerpass")));
+                    syncSettingsFlashJson();
+                    HTTP.send(200, "text/plain", "ok");
+                }
 
-    });
+            });
 
     //  Добавляем функцию Update для перезаписи прошивки по WiFi при 1М(256K FileFS) и выше
     //  httpUpdater.setup(&HTTP);
@@ -60,193 +68,640 @@ void standWebServerInit() {
     //  Запускаем HTTP сервер
     HTTP.begin();
 
-    //#ifdef REST_FILE_OPERATIONS
-    // SPIFFS.begin();
-    // {
-    //     Dir dir = SPIFFS.openDir("/");
-    //     while (dir.next()) {
-    //         String fileName = dir.fileName();
-    //         size_t fileSize = dir.fileSize();
-    //     }
-    // }
     // HTTP страницы для работы с FFS
 
-    // list directory
+    ////////////////////////////////
+    // WEB SERVER INIT
+
+    // Filesystem status
+    HTTP.on("/status", HTTP_GET, handleStatus);
+
+    // List directory
     HTTP.on("/list", HTTP_GET, handleFileList);
 
-    //загрузка редактора editor
-    HTTP.on("/edit", HTTP_GET, []() {
-        if (!HTTP.args()) {
-            if (!handleFileRead("/edit.htm")) HTTP.send(404, "text/plain", "FileNotFound");
-        }
+    // Load editor
+    HTTP.on("/edit", HTTP_GET, handleGetEdit);
 
-        if (HTTP.hasArg("list")) {
-            handleFileList();
-        }
-
-        if (HTTP.hasArg("edit")) {
-            if (!handleFileRead(HTTP.arg("edit"))) HTTP.send(404, "text/plain", "FileNotFound");
-        }
-
-        if (HTTP.hasArg("download")) {
-            if (!handleFileRead(HTTP.arg("download"))) HTTP.send(404, "text/plain", "FileNotFound");
-        }
-    });
-
-    //Создание файла
+    // Create file
     HTTP.on("/edit", HTTP_PUT, handleFileCreate);
 
-    //Удаление файла
+    // Delete file
     HTTP.on("/edit", HTTP_DELETE, handleFileDelete);
 
-    //Изменение файла
-    HTTP.on(
-        "/edit", HTTP_POST, []() {
-            HTTP.send(200, "text/plain", "");
-        },
-        handleFileUpload);
+    // Upload file
+    // - first callback is called after the request has ended with all parsed arguments
+    // - second callback handles file upload at that location
+    HTTP.on("/edit", HTTP_POST, replyOK, handleFileUpload);
 
-    // called when the url is not defined here
-    HTTP.onNotFound([]() {
-        if (!handleFileRead(HTTP.uri()))
-            HTTP.send(404, "text/plain", "FileNotFound");
-    });
+    // Default handler for all URIs not defined above
+    // Use it to read files from filesystem
+    HTTP.onNotFound(handleNotFound);
 }
 
-bool handleFileRead(String path) {
-    path = "/" + path;
-    if (path.endsWith("/")) path += "index.html";
-    String contentType = getContentType(path);
-    String pathWithGz = path + ".gz";
-    if (FileFS.exists(pathWithGz) || FileFS.exists(path)) {
-        if (FileFS.exists(pathWithGz))
-            path += ".gz";
+////////////////////////////////
+// Utils to return HTTP codes, and determine content-type
+
+void replyOK()
+{
+    HTTP.send(200, FPSTR(TEXT_PLAIN), "");
+}
+
+void replyOKWithMsg(String msg)
+{
+    HTTP.send(200, FPSTR(TEXT_PLAIN), msg);
+}
+
+void replyNotFound(String msg)
+{
+    HTTP.send(404, FPSTR(TEXT_PLAIN), msg);
+}
+
+void replyBadRequest(String msg)
+{
+//    DBG_OUTPUT_PORT.println(msg);
+    HTTP.send(400, FPSTR(TEXT_PLAIN), msg + "\r\n");
+}
+
+void replyServerError(String msg)
+{
+//    DBG_OUTPUT_PORT.println(msg);
+    HTTP.send(500, FPSTR(TEXT_PLAIN), msg + "\r\n");
+}
+
+/*
+   Return the FS type, status and size info
+*/
+void handleStatus()
+{
+//    DBG_OUTPUT_PORT.println("handleStatus");
+    String json;
+    json.reserve(128);
+
+    json = "{\"type\":\"";
+    json += FS_NAME;
+    json += "\", \"isOk\":";
+
+ #ifdef ESP8266
+    FSInfo fs_info;
+
+        FileFS.info(fs_info);
+        json += F("\"true\", \"totalBytes\":\"");
+        json += fs_info.totalBytes;
+        json += F("\", \"usedBytes\":\"");
+        json += fs_info.usedBytes;
+        json += "\"";
+#endif     
+#ifdef ESP32
+        json += F("\"true\", \"totalBytes\":\"");
+        json += String(FileFS.totalBytes());
+        json += F("\", \"usedBytes\":\"");
+        json += String(FileFS.usedBytes());
+        json += "\"";
+#endif
+
+    json += F(",\"unsupportedFiles\":\"");
+    json += unsupportedFiles;
+    json += "\"}";
+
+    HTTP.send(200, "application/json", json);
+}
+
+#ifdef ESP32
+String getContentType(String filename) {
+  if (HTTP.hasArg("download")) {
+    return "application/octet-stream";
+  } else if (filename.endsWith(".htm")) {
+    return "text/html";
+  } else if (filename.endsWith(".html")) {
+    return "text/html";
+  } else if (filename.endsWith(".css")) {
+    return "text/css";
+  } else if (filename.endsWith(".js")) {
+    return "application/javascript";
+  } else if (filename.endsWith(".png")) {
+    return "image/png";
+  } else if (filename.endsWith(".gif")) {
+    return "image/gif";
+  } else if (filename.endsWith(".jpg")) {
+    return "image/jpeg";
+  } else if (filename.endsWith(".ico")) {
+    return "image/x-icon";
+  } else if (filename.endsWith(".xml")) {
+    return "text/xml";
+  } else if (filename.endsWith(".pdf")) {
+    return "application/x-pdf";
+  } else if (filename.endsWith(".zip")) {
+    return "application/x-zip";
+  } else if (filename.endsWith(".gz")) {
+    return "application/x-gzip";
+  }
+  return "text/plain";
+}
+#endif
+
+/*
+   Read the given file from the filesystem and stream it back to the client
+*/
+bool handleFileRead(String path)
+{
+//    DBG_OUTPUT_PORT.println(String("handleFileRead: ") + path);
+    if (path.endsWith("/"))
+    {
+        path += "index.html";
+    }
+
+    String contentType;
+    if (HTTP.hasArg("download"))
+    {
+        contentType = F("application/octet-stream");
+    }
+    else
+    {
+#ifdef ESP32        
+        contentType = getContentType(path);
+#endif
+#ifdef ESP8266
+        contentType = mime::getContentType(path);
+#endif        
+    }
+
+    if (!FileFS.exists(path))
+    {
+        // File not found, try gzip version
+        path = path + ".gz";
+    }
+    if (FileFS.exists(path))
+    {
         File file = FileFS.open(path, "r");
-        if (contentType == "application/octet-stream")
-            HTTP.sendHeader("Content-Disposition", "attachment;filename=" + (String)file.name());
-        HTTP.streamFile(file, contentType);
+        if (HTTP.streamFile(file, contentType) != file.size())
+        {
+ //           DBG_OUTPUT_PORT.println("Sent less data than expected!");
+        }
         file.close();
         return true;
     }
+
     return false;
 }
 
-String getContentType(String filename) {
-    if (HTTP.hasArg("download"))
-        return "application/octet-stream";
-    else if (filename.endsWith(".htm"))
-        return "text/html";
-    else if (filename.endsWith(".html"))
-        return "text/html";
-    else if (filename.endsWith(".txt"))
-        return "text/plain";
-    else if (filename.endsWith(".json"))
-        return "application/json";
-    else if (filename.endsWith(".css"))
-        return "text/css";
-    else if (filename.endsWith(".js"))
-        return "application/javascript";
-    else if (filename.endsWith(".png"))
-        return "image/png";
-    else if (filename.endsWith(".gif"))
-        return "image/gif";
-    else if (filename.endsWith(".jpg"))
-        return "image/jpeg";
-    else if (filename.endsWith(".ico"))
-        return "image/x-icon";
-    else if (filename.endsWith(".xml"))
-        return "text/xml";
-    else if (filename.endsWith(".pdf"))
-        return "application/x-pdf";
-    else if (filename.endsWith(".zip"))
-        return "application/x-zip";
-    else if (filename.endsWith(".gz"))
-        return "application/x-gzip";
-    return "text/plain";
+/*
+   As some FS (e.g. LittleFS) delete the parent folder when the last child has been removed,
+   return the path of the closest parent still existing
+*/
+String lastExistingParent(String path)
+{
+    while (!path.isEmpty() && !FileFS.exists(path))
+    {
+        if (path.lastIndexOf('/') > 0)
+        {
+            path = path.substring(0, path.lastIndexOf('/'));
+        }
+        else
+        {
+            path = String(); // No slash => the top folder does not exist
+        }
+    }
+//    DBG_OUTPUT_PORT.println(String("Last existing parent: ") + path);
+    return path;
 }
 
-// Здесь функции для работы с файловой системой
-void handleFileUpload() {
-    if (HTTP.uri() != "/edit") return;
-    HTTPUpload& upload = HTTP.upload();
-    if (upload.status == UPLOAD_FILE_START) {
+/*
+   Handle a file upload request
+*/
+void handleFileUpload()
+{
+    if (HTTP.uri() != "/edit")
+    {
+        return;
+    }
+    HTTPUpload &upload = HTTP.upload();
+    if (upload.status == UPLOAD_FILE_START)
+    {
         String filename = upload.filename;
-        if (!filename.startsWith("/")) filename = "/" + filename;
-        fsUploadFile = FileFS.open(filename, "w");
-        filename = String();
-    } else if (upload.status == UPLOAD_FILE_WRITE) {
-        // Serial.print("handleFileUpload Data: "); Serial.println(upload.currentSize);
-        if (fsUploadFile)
-            fsUploadFile.write(upload.buf, upload.currentSize);
-    } else if (upload.status == UPLOAD_FILE_END) {
-        if (fsUploadFile)
-            fsUploadFile.close();
+        // Make sure paths always start with "/"
+        if (!filename.startsWith("/"))
+        {
+            filename = "/" + filename;
+        }
+//        DBG_OUTPUT_PORT.println(String("handleFileUpload Name: ") + filename);
+        uploadFile = FileFS.open(filename, "w");
+        if (!uploadFile)
+        {
+            return replyServerError(F("CREATE FAILED"));
+        }
+//        DBG_OUTPUT_PORT.println(String("Upload: START, filename: ") + filename);
+    }
+    else if (upload.status == UPLOAD_FILE_WRITE)
+    {
+        if (uploadFile)
+        {
+            size_t bytesWritten = uploadFile.write(upload.buf, upload.currentSize);
+            if (bytesWritten != upload.currentSize)
+            {
+                return replyServerError(F("WRITE FAILED"));
+            }
+        }
+//        DBG_OUTPUT_PORT.println(String("Upload: WRITE, Bytes: ") + upload.currentSize);
+    }
+    else if (upload.status == UPLOAD_FILE_END)
+    {
+        if (uploadFile)
+        {
+            uploadFile.close();
+        }
+//        DBG_OUTPUT_PORT.println(String("Upload: END, Size: ") + upload.totalSize);
     }
 }
 
-void handleFileDelete() {
-    if (HTTP.args() == 0) return HTTP.send(500, "text/plain", "BAD ARGS");
+
+#ifdef ESP8266
+void deleteRecursive(String path)
+{
+    File file = FileFS.open(path, "r");
+    bool isDir = file.isDirectory();
+    file.close();
+
+    // If it's a plain file, delete it
+    if (!isDir)
+    {
+        FileFS.remove(path);
+        return;
+    }
+    Dir dir = FileFS.openDir(path);
+    while (dir.next())
+    {
+        deleteRecursive(path + '/' + dir.fileName());
+    }    
+
+    // Then delete the folder itself
+    FileFS.rmdir(path);
+}
+#endif
+
+#ifdef ESP32
+struct treename{
+  uint8_t type; 
+  char    *name;
+};
+
+
+void deleteRecursive( String path ){
+    fs::File dir = FileFS.open( path );
+    
+    if(!dir.isDirectory()){
+       Serial.printf("%s is a file\n", path);
+       dir.close();
+       Serial.printf( "result of removing file %s: %d\n", path, FileFS.remove( path ) );
+       return;
+    }
+    
+    Serial.printf("%s is a directory\n", path);
+     
+    fs::File entry, nextentry;
+       
+    while ( entry = dir.openNextFile() ){          
+      
+if ( entry.isDirectory()  ){
+         deleteRecursive( entry.path() );        
+      } else{ 
+         String tmpname = path+"/"+strdup( entry.name() ); // buffer file name
+         entry.close();
+         Serial.printf( "result of removing file %s: %d\n", tmpname, FileFS.remove( tmpname ) );
+      }     
+      
+    }
+
+    dir.close(); 
+    Serial.printf( "result of removing directory %s: %d\n", path, FileFS.rmdir( path ) );  
+
+}
+#endif
+/*
+   Handle a file deletion request
+   Operation      | req.responseText
+   ---------------+--------------------------------------------------------------
+   Delete file    | parent of deleted file, or remaining ancestor
+   Delete folder  | parent of deleted folder, or remaining ancestor
+*/
+void handleFileDelete()
+{
     String path = HTTP.arg(0);
-    if (path == "/")
-        return HTTP.send(500, "text/plain", "BAD PATH");
+    if (path.isEmpty() || path == "/")
+    {
+        return replyBadRequest("BAD PATH");
+    }
+
+//    DBG_OUTPUT_PORT.println(String("handleFileDelete: ") + path);
     if (!FileFS.exists(path))
-        return HTTP.send(404, "text/plain", "FileNotFound");
-    FileFS.remove(path);
-    HTTP.send(200, "text/plain", "");
-    path = String();
+    {
+        return replyNotFound(FPSTR(FILE_NOT_FOUND));
+    }
+    deleteRecursive(path);
+
+
+
+    replyOKWithMsg(lastExistingParent(path));
 }
 
-void handleFileCreate() {
-    if (HTTP.args() == 0)
-        return HTTP.send(500, "text/plain", "BAD ARGS");
-    String path = HTTP.arg(0);
+/*
+   Handle the creation/rename of a new file
+   Operation      | req.responseText
+   ---------------+--------------------------------------------------------------
+   Create file    | parent of created file
+   Create folder  | parent of created folder
+   Rename file    | parent of source file
+   Move file      | parent of source file, or remaining ancestor
+   Rename folder  | parent of source folder
+   Move folder    | parent of source folder, or remaining ancestor
+*/
+void handleFileCreate()
+{
+    String path = HTTP.arg("path");
+    if (path.isEmpty())
+    {
+        return replyBadRequest(F("PATH ARG MISSING"));
+    }
+
+#ifdef USE_SPIFFS
+    if (checkForUnsupportedPath(path).length() > 0)
+    {
+        return replyServerError(F("INVALID FILENAME"));
+    }
+#endif
+
     if (path == "/")
-        return HTTP.send(500, "text/plain", "BAD PATH");
+    {
+        return replyBadRequest("BAD PATH");
+    }
     if (FileFS.exists(path))
-        return HTTP.send(500, "text/plain", "FILE EXISTS");
-    File file = FileFS.open(path, "w");
-    if (file)
-        file.close();
+    {
+        return replyBadRequest(F("PATH FILE EXISTS"));
+    }
+
+    String src = HTTP.arg("src");
+    if (src.isEmpty())
+    {
+        // No source specified: creation
+//        DBG_OUTPUT_PORT.println(String("handleFileCreate: ") + path);
+        if (path.endsWith("/"))
+        {
+            // Create a folder
+            path.remove(path.length() - 1);
+            if (!FileFS.mkdir(path))
+            {
+                return replyServerError(F("MKDIR FAILED"));
+            }
+        }
+        else
+        {
+            // Create a file
+            File file = FileFS.open(path, "w");
+            if (file)
+            {
+#ifdef ESP8266                
+                file.write((const char *)0);
+#endif
+#ifdef ESP32
+                file.write(0);
+#endif                
+                file.close();
+            }
+            else
+            {
+                return replyServerError(F("CREATE FAILED"));
+            }
+        }
+        if (path.lastIndexOf('/') > -1)
+        {
+            path = path.substring(0, path.lastIndexOf('/'));
+        }
+        replyOKWithMsg(path);
+    }
     else
-        return HTTP.send(500, "text/plain", "CREATE FAILED");
-    HTTP.send(200, "text/plain", "");
-    path = String();
+    {
+        // Source specified: rename
+        if (src == "/")
+        {
+            return replyBadRequest("BAD SRC");
+        }
+        if (!FileFS.exists(src))
+        {
+            return replyBadRequest(F("SRC FILE NOT FOUND"));
+        }
+
+//        DBG_OUTPUT_PORT.println(String("handleFileCreate: ") + path + " from " + src);
+
+        if (path.endsWith("/"))
+        {
+            path.remove(path.length() - 1);
+        }
+        if (src.endsWith("/"))
+        {
+            src.remove(src.length() - 1);
+        }
+        if (!FileFS.rename(src, path))
+        {
+            return replyServerError(F("RENAME FAILED"));
+        }
+        replyOKWithMsg(lastExistingParent(src));
+    }
 }
 
-void handleFileList() {
-    File dir = FileFS.open("/", "r");
-    String output = "[";
-    File entry;
-    while (entry = dir.openNextFile()) {
-        if (output != "[") output += ',';
-        bool isDir = entry.isDirectory();
+/*
+   Return the list of files in the directory specified by the "dir" query string parameter.
+   Also demonstrates the use of chunked responses.
+*/
+#ifdef ESP8266
+void handleFileList()
+{
+    if (!HTTP.hasArg("dir"))
+    {
+        return replyBadRequest(F("DIR ARG MISSING"));
+    }
+
+    String path = HTTP.arg("dir");
+    if (path != "/" && !FileFS.exists(path))
+    {
+        return replyBadRequest("BAD PATH");
+    }
+
+//    DBG_OUTPUT_PORT.println(String("handleFileList: ") + path);
+    Dir dir = FileFS.openDir(path);
+    path.clear();
+
+    // use HTTP/1.1 Chunked response to avoid building a huge temporary string
+    if (!HTTP.chunkedResponseModeStart(200, "text/json"))
+    {
+        HTTP.send(505, F("text/html"), F("HTTP1.1 required"));
+        return;
+    }
+
+    // use the same string for every line
+    String output;
+    output.reserve(64);
+    while (dir.next())
+    {
+#ifdef USE_SPIFFS
+        String error = checkForUnsupportedPath(dir.fileName());
+        if (error.length() > 0)
+        {
+//            DBG_OUTPUT_PORT.println(String("Ignoring ") + error + dir.fileName());
+            continue;
+        }
+#endif
+        if (output.length())
+        {
+            // send string from previous iteration
+            // as an HTTP chunk
+            HTTP.sendContent(output);
+            output = ',';
+        }
+        else
+        {
+            output = '[';
+        }
+
         output += "{\"type\":\"";
-        output += (isDir) ? "dir" : "file";
-        output += "\",\"name\":\"";
-        output += String(entry.name());
+        if (dir.isDirectory())
+        {
+            output += "dir";
+        }
+        else
+        {
+            output += F("file\",\"size\":\"");
+            output += dir.fileSize();
+        }
+
+        output += F("\",\"name\":\"");
+        // Always return names without leading "/"
+        if (dir.fileName()[0] == '/')
+        {
+            output += &(dir.fileName()[1]);
+        }
+        else
+        {
+            output += dir.fileName();
+        }
+
         output += "\"}";
-        entry.close();
     }
+
+    // send last string
     output += "]";
-    //Serial.println(output);
-    HTTP.send(200, "text/json", output);
+    HTTP.sendContent(output);
+    HTTP.chunkedResponseFinalize();
+}
+#endif
+
+#ifdef ESP32
+void handleFileList() {
+  if (!HTTP.hasArg("dir")) {
+    HTTP.send(500, "text/plain", "BAD ARGS");
+    return;
+  }
+
+  String path = HTTP.arg("dir");
+//  DBG_OUTPUT_PORT.println("handleFileList: " + path);
+
+
+  File root = FileFS.open(path);
+  path = String();
+
+  String output = "[";
+  if(root.isDirectory()){
+      File file = root.openNextFile();
+      while(file){
+          if (output != "[") {
+            output += ',';
+          }
+          output += "{\"type\":\"";
+ //         output += (file.isDirectory()) ? "dir" : "file";
+        if (file.isDirectory())
+        {
+            output += "dir";
+        }
+        else
+        {
+            output += F("file\",\"size\":\"");
+            output += file.size();
+        }
+
+          output += "\",\"name\":\"";
+            output += String(file.name());
+          output += "\"}";
+          file = root.openNextFile();
+      }
+  }
+  output += "]";
+  HTTP.send(200, "text/json", output);
+  
+}
+#endif
+
+
+/*
+   The "Not Found" handler catches all URI not explicitly declared in code
+   First try to find and return the requested file from the filesystem,
+   and if it fails, return a 404 page with debug information
+*/
+void handleNotFound()
+{
+#ifdef ESP8266
+    String uri = ESP8266WebServer::urlDecode(HTTP.uri()); // required to read paths with blanks
+#endif
+#ifdef ESP32
+    String uri = WebServer::urlDecode(HTTP.uri()); // required to read paths with blanks
+#endif
+    if (handleFileRead(uri))
+    {
+        return;
+    }
+
+    // Dump debug data
+    String message;
+    message.reserve(100);
+    message = F("Error: File not found\n\nURI: ");
+    message += uri;
+    message += F("\nMethod: ");
+    message += (HTTP.method() == HTTP_GET) ? "GET" : "POST";
+    message += F("\nArguments: ");
+    message += HTTP.args();
+    message += '\n';
+    for (uint8_t i = 0; i < HTTP.args(); i++)
+    {
+        message += F(" NAME:");
+        message += HTTP.argName(i);
+        message += F("\n VALUE:");
+        message += HTTP.arg(i);
+        message += '\n';
+    }
+    message += "path=";
+    message += HTTP.arg("path");
+    message += '\n';
+//    DBG_OUTPUT_PORT.print(message);
+
+    return replyNotFound(message);
 }
 
-void printDirectory(File dir, String& out) {
-    while (true) {
-        File entry = dir.openNextFile();
-        if (!entry) {
-            break;
-        }
-        if (entry.isDirectory()) {
-            out += entry.name();
-            out += "/";
-            printDirectory(entry, out);
-        } else {
-            out += entry.name();
-            out += "\r\n";
-        }
+/*
+   This specific handler returns the index.htm (or a gzipped version) from the /edit folder.
+   If the file is not present but the flag INCLUDE_FALLBACK_INDEX_HTM has been set, falls back to the version
+   embedded in the program code.
+   Otherwise, fails with a 404 page with debug information
+*/
+void handleGetEdit()
+{
+    if (handleFileRead(F("/edit.htm")))
+    {
+        return;
     }
+
+#ifdef INCLUDE_FALLBACK_INDEX_HTM
+    server.sendHeader(F("Content-Encoding"), "gzip");
+    server.send(200, "text/html", index_htm_gz, index_htm_gz_len);
+#else
+    replyNotFound(FPSTR(FILE_NOT_FOUND));
+#endif
 }
 
 #endif