Add FileExtensionTextMode plugin

a plugin to customize the join of file extension and the text mode.

also add an API to the editor for this.

components/fileExtTextMode/process.php

@@ -0,0 +1,65 @@
+<?php
+
+require_once '../../common.php';
+require_once 'defaultValues.php';
+
+Common::checkSession();
+
+//echo json_encode(array('status' => 'success', 'msg' => 'No Content.'));
+
+//Store Fileextensions and Textmodes in File:
+
+function validateExtension($extension){
+	return preg_match('#^[a-z0-9\_]+$#i', $extension);
+}
+
+function validTextMode($mode){
+	global $availiableTextModes;
+	return in_array($mode, $availiableTextModes);
+}
+
+if(!isset($_POST['extension']) || !is_array($_POST['extension']) 
+			|| !isset($_POST['textMode']) || !is_array($_POST['textMode'])){
+	die(json_encode(array('status' => 'error', 'msg' => 'incorrect data send')));
+}
+
+$exMap = array();
+
+$warning = '';
+
+foreach ($_POST['extension'] as $key => $extension){
+	if(trim($extension) == '' ){
+		continue;
+	}
+	
+	if(!isset($_POST["textMode"][$key])){
+		die(json_encode(array('status' => 'error', 'msg' => 'incorrect data send.')));
+	}
+	
+	$extension = strtolower(trim($extension));
+	$textMode =  strtolower(trim($_POST["textMode"][$key]));
+	
+	if(!validateExtension($extension)){
+		die(json_encode(array('status' => 'error', 'msg' => 'incorrect extension:'.htmlentities($extension))));
+	}
+	
+	if(!validTextMode($textMode)){
+		die(json_encode(array('status' => 'error', 'msg' => 'incorrect text mode:'.htmlentities($textMode))));
+	}
+	
+	if(isset($exMap[$extension])){
+		$warning =  htmlentities($extension).' is already set.<br/>';
+	}else{
+		$exMap[$extension] = $textMode;
+	}
+}
+
+
+Common::saveJSON('fileExtensions.php', $exMap);
+if($warning != ''){
+	echo json_encode(array('status' => 'warning', 'msg' => $warning, 'extensions' => $exMap ));
+}else{
+	echo json_encode(array('status' => 'success', 'msg' => 'File extensions are saved successfully.', 'extensions' => $exMap));
+}
+
+?>