Initial code import based on Amine's email 6/28/2016

bootstrap.php

@@ -0,0 +1,135 @@
+<?php
+/*
+Plugin Name: Visitors contributions
+Plugin URI: http://codecanyon.net/user/Leavy
+Description: A wordpress plugin that gives your visitors the possiblity to develop your website content by submiting new versions to your articles.
+Version: 1.07
+Author: Leavy
+Author URI: http://codecanyon.net/user/Leavy
+*/
+class visitors_edits{
+	public function __construct() {
+		register_activation_hook( __FILE__, array($this,'install'));
+		add_action( 'admin_menu', array( $this, 'admin_pages' ) );
+		add_filter('the_content', array($this,'contentFilter'));
+
+		add_filter( 'query_vars', array($this,'query_vars') );
+		add_action( 'init',array($this,'init'));
+		add_action( 'parse_request',array($this,'parse_request'));
+
+		add_filter( 'mce_buttons', array($this,'tinymce_btns') );
+		add_filter( 'mce_external_plugins', array($this,'tinymce_scripts') );
+
+		add_action('admin_head', array($this,'admin_head') );
+		add_action('admin_init', array($this,'admin_init') );
+
+	}
+	public function admin_pages() {
+		add_menu_page('Visitors Contributions | Pending reviews','Visitors contributions','read','visitors_edits_main',array($this , 'main'),plugins_url("img/contribute.png",__FILE__),87);
+		add_submenu_page(null,"Visitors Contributions | Review","Review a contribution","read",'visitors_edits_approve',array($this,'approve'));
+		add_submenu_page("visitors_edits_main","Visitors Contributions | Settings","Settings","read",'visitors_edits_settings',array($this,'settings'));
+	}
+	public function admin_head(){
+		if(isset($_GET["page"]) && ($_GET["page"]==="visitors_edits_approve" || $_GET["page"]==="visitors_edits_main" || $_GET["page"]==="visitors_edits_settings")){
+		?>
+			<link rel="stylesheet" type="text/css" href="<?php echo plugins_url( '/css/app.css',__FILE__ );?>">
+		<?php
+		}
+	}
+	public function admin_init(){
+		add_editor_style(plugins_url( './css/tinymce.css',__FILE__ ));
+	}
+	public function main(){
+		require "inc/main.php";
+	}
+	public function approve(){
+		require 'inc/approve.php';
+	}
+	public function settings(){
+		require 'inc/settings.php';
+	}
+	public function contentFilter($content){
+		if(is_single()) {
+			$options=get_option( "visitors_edits_options", [
+				"propose_edit_link"=>"<p><a href='#post_link#'>Propose an edit</a></p>"
+			]);
+			global $post;
+			$new_content = str_replace("#post_link#", get_site_url().'/'.$post->post_name.'/suggestions', stripcslashes($options["propose_edit_link"]));
+			$content .= $new_content;	
+		}
+		return $content;
+	}
+	public function install(){
+		//General Settings
+		delete_option("visitors_edits_options");
+		//Database Settings
+		global $wpdb;
+		$wpdb->show_errors();
+
+		$charset_collate = $wpdb->get_charset_collate();
+		$table_name = $wpdb->prefix . 'visitors_edits';
+
+		$sql = "CREATE TABLE $table_name (
+			edit_id bigint(20) NOT NULL AUTO_INCREMENT,
+			edit_time datetime DEFAULT '0000-00-00 00:00:00' NOT NULL,
+			visitor_name text DEFAULT '',
+			visitor_email text DEFAULT '',
+			visitor_comment longtext DEFAULT '',
+			edit_content longtext DEFAULT '',
+			post_id bigint(20),
+			post_content longtext DEFAULT '',
+			UNIQUE KEY (edit_id)
+		) $charset_collate;";
+
+		require_once( ABSPATH . 'wp-admin/includes/upgrade.php' );
+		dbDelta( $sql );
+	}
+	public function query_vars($query_vars){
+		$query_vars[] = 'visitors_edits_post_name';
+    	return $query_vars;
+	}
+	public function init(){
+		add_rewrite_rule(
+	        '(.*)?/suggestions/?$',
+	        'index.php?visitors_edits_post_name=$matches[1]',
+	        'top'
+	    );
+	    flush_rewrite_rules(true);
+	}
+	public function parse_request($request){
+		if( isset( $request->query_vars['visitors_edits_post_name'] ) ):
+	        include( plugin_dir_path(__FILE__) . "/inc/editor.php" );
+	        exit();
+	    endif;
+	    return $request;
+	}
+	public function tinymce_btns($buttons){
+		if(isset($_GET["page"]) && $_GET["page"]==="visitors_edits_approve"){
+			array_push($buttons,'|','visitors_edits_approve','visitors_edits_reject','visitors_edits_clean');
+		}
+   		return $buttons;
+	}
+	public function tinymce_scripts($plugin_array){
+		$plugin_array['visitors_edits'] = plugins_url( 'js/approve.js',__FILE__ );
+   		return $plugin_array;
+	}
+	static function scriptUrl($script){
+		return plugins_url( 'js/'.$script.'.js',__FILE__);
+	}
+}
+new visitors_edits();
+
+use Caxy\HtmlDiff\HtmlDiff;
+use PHPHtmlParser\Dom;
+
+function visitors_editsDIFF($oldHtml,$newHtml){
+	require "vendor/autoload.php";
+	$htmlDiff = new HtmlDiff($oldHtml, $newHtml);
+	$htmlDiff->getConfig()->setGroupDiffs(false);
+	
+	return $htmlDiff->build();
+}
+function visitors_editsDOM(){
+	return new Dom;
+}
+?>

css/app.css

@@ -0,0 +1,178 @@
+@import url("https://fonts.googleapis.com/css?family=Roboto:100,400,700");
+/* line 3, ../sass/app.scss */
+.visitors_edits_no_data {
+  text-align: center;
+  font-weight: bold;
+  font-size: 50px;
+  margin-top: 250px;
+  opacity: 0.3;
+  text-transform: uppercase;
+  display: none;
+}
+
+/* line 12, ../sass/app.scss */
+.visitors_edits_pending {
+  padding: 15px;
+}
+/* line 14, ../sass/app.scss */
+.visitors_edits_pending h1 {
+  font-weight: 100;
+  font-size: 20px;
+}
+
+/* line 22, ../sass/app.scss */
+.visitors_flashMessage {
+  margin: 15px;
+  background: #fff;
+  padding: 10px 15px;
+  border-left: 6px solid #089D08;
+  color: #089D08;
+  font-size: 14px;
+  font-weight: 100;
+}
+/* line 30, ../sass/app.scss */
+.visitors_flashMessage.danger {
+  color: #F6214E;
+  border-color: #F6214E;
+}
+
+/* line 36, ../sass/app.scss */
+.visitors_edits_review_editor {
+  padding: 15px;
+}
+/* line 38, ../sass/app.scss */
+.visitors_edits_review_editor h1 {
+  font-weight: 100;
+  font-size: 25px;
+  display: inline-block;
+  margin-right: 15px;
+  margin-bottom: 10px;
+}
+/* line 45, ../sass/app.scss */
+.visitors_edits_review_editor .delete_edit {
+  transition-duration: 0.3s;
+  color: #F6214E;
+  text-decoration: none;
+  text-decoration: underline;
+  font-style: italic;
+  font-style: 12px;
+  opacity: 0.6;
+}
+/* line 53, ../sass/app.scss */
+.visitors_edits_review_editor .delete_edit:hover {
+  opacity: 1;
+}
+/* line 57, ../sass/app.scss */
+.visitors_edits_review_editor .edit_info, .visitors_edits_review_editor .edit_notify {
+  padding-left: 15px;
+  font-style: italic;
+  opacity: 0.8;
+  font-size: 14px;
+}
+/* line 62, ../sass/app.scss */
+.visitors_edits_review_editor .edit_info .mail, .visitors_edits_review_editor .edit_notify .mail {
+  opacity: 0.6;
+  font-size: 12px;
+}
+/* line 67, ../sass/app.scss */
+.visitors_edits_review_editor .edit_notify {
+  margin: 10px 0;
+  padding: 0;
+}
+/* line 70, ../sass/app.scss */
+.visitors_edits_review_editor .edit_notify label {
+  display: block;
+  margin-bottom: 10px;
+}
+/* line 74, ../sass/app.scss */
+.visitors_edits_review_editor .edit_notify #edit_notify_message {
+  font-family: "Roboto",sans-serif;
+  max-height: 100px;
+  min-height: 100px;
+  max-width: 100%;
+  min-width: 100%;
+  line-height: normal;
+  border: none;
+  border-bottom: 1px solid #DFDFDF;
+  font-size: 18px;
+  padding: 10px;
+  display: none;
+}
+/* line 85, ../sass/app.scss */
+.visitors_edits_review_editor .edit_notify #edit_notify_message:focus {
+  outline: none;
+  border-bottom-width: 2px;
+  border-color: rgba(3, 133, 244, 0.7);
+}
+/* line 93, ../sass/app.scss */
+.visitors_edits_review_editor .controls {
+  margin-top: 20px;
+}
+/* line 96, ../sass/app.scss */
+.visitors_edits_review_editor .comment {
+  font-size: 14px;
+  margin: 0;
+  padding: 10px;
+  background: #fff;
+  border: 1px solid #999;
+  font-style: normal;
+  opacity: 1;
+  color: #000;
+}
+
+/* line 107, ../sass/app.scss */
+.visitors_edits_admin {
+  font-family: "Roboto",sans-serif;
+  width: 70%;
+  margin: 50px auto;
+  background: #fff;
+  border: 1px solid #E2E2E2;
+  padding: 20px;
+}
+/* line 114, ../sass/app.scss */
+.visitors_edits_admin h2 {
+  font-size: 25px;
+  font-weight: 100;
+}
+/* line 120, ../sass/app.scss */
+.visitors_edits_admin .control label {
+  display: block;
+  font-weight: bold;
+  margin: 15px 0 0;
+  opacity: 0.9;
+  font-size: 13px;
+}
+/* line 127, ../sass/app.scss */
+.visitors_edits_admin .control input[type="text"], .visitors_edits_admin .control .notif_message {
+  background: #F3F3F3;
+  outline: none;
+  padding: 0 10px;
+  height: 40px;
+  line-height: normal;
+  border: none;
+  border-bottom: 1px solid #DFDFDF;
+  width: 100%;
+}
+/* line 136, ../sass/app.scss */
+.visitors_edits_admin .control input[type="text"]:focus, .visitors_edits_admin .control .notif_message:focus {
+  outline: none;
+  border-bottom-width: 2px;
+  border-color: rgba(3, 133, 244, 0.7);
+}
+/* line 142, ../sass/app.scss */
+.visitors_edits_admin .control .notif_message {
+  min-height: 120px;
+  max-height: 120px;
+  padding: 10px;
+  min-width: 100%;
+  max-width: 100%;
+  line-height: normal;
+}
+/* line 150, ../sass/app.scss */
+.visitors_edits_admin .control input[type="checkbox"] {
+  margin-right: 10px;
+}
+/* line 153, ../sass/app.scss */
+.visitors_edits_admin .control .save_btn {
+  margin-top: 20px;
+}

css/editor.css

@@ -0,0 +1,156 @@
+@import url("https://fonts.googleapis.com/css?family=Roboto:100,400,700");
+/* line 7, ../sass/editor.scss */
+body {
+  font-family: "Roboto",sans-serif;
+  font-size: 18px;
+  color: #545454;
+  padding: 0;
+  margin: 0;
+}
+
+/* line 14, ../sass/editor.scss */
+a {
+  text-decoration: none;
+  color: inherit;
+}
+
+/* line 18, ../sass/editor.scss */
+* {
+  transition-duration: 0.3s;
+  -moz-box-sizing: border-box;
+  -webkit-box-sizing: border-box;
+  box-sizing: border-box;
+}
+
+/* line 22, ../sass/editor.scss */
+.header {
+  padding: 20px 60px;
+  background: #0385F4;
+}
+/* line 25, ../sass/editor.scss */
+.header .header-title {
+  font-size: 50px;
+  font-weight: 100;
+  color: #fff;
+  opacity: 0.5;
+}
+/* line 31, ../sass/editor.scss */
+.header .header-content {
+  font-weight: 100;
+  color: #fff;
+  text-align: right;
+  font-size: 14px;
+  opacity: 0.7;
+}
+/* line 37, ../sass/editor.scss */
+.header .header-content:hover {
+  opacity: 0.9;
+}
+
+/* line 42, ../sass/editor.scss */
+.editor_form {
+  padding: 20px 40px;
+  overflow: hidden;
+  width: 100%;
+}
+/* line 46, ../sass/editor.scss */
+.editor_form .editor_field {
+  background: #f5f5f5;
+  padding: 15px;
+}
+/* line 50, ../sass/editor.scss */
+.editor_form .submit_fields {
+  padding: 0 20px;
+}
+
+/* line 55, ../sass/editor.scss */
+label {
+  display: block;
+  margin: 30px 0 10px;
+}
+
+/* line 59, ../sass/editor.scss */
+.text_field, .area_field {
+  height: 40px;
+  line-height: 40px;
+  border: none;
+  border-bottom: 1px solid #DFDFDF;
+  width: 100%;
+  font-size: 18px;
+}
+/* line 66, ../sass/editor.scss */
+.text_field:focus, .area_field:focus {
+  outline: none;
+  border-bottom-width: 2px;
+  border-color: rgba(3, 133, 244, 0.7);
+}
+
+/* line 72, ../sass/editor.scss */
+.area_field {
+  font-family: "Roboto",sans-serif;
+  max-height: 100px;
+  min-height: 100px;
+  max-width: 100%;
+  min-width: 100%;
+  line-height: normal;
+}
+
+/* line 80, ../sass/editor.scss */
+.submit_fields_error {
+  line-height: 20px;
+  font-style: italic;
+  font-size: 12px;
+  opacity: 0.8;
+  color: #e74c3c;
+}
+
+/* line 87, ../sass/editor.scss */
+.btn {
+  height: 40px;
+  color: #fff;
+  line-height: 40px;
+  padding: 0 20px;
+  text-transform: uppercase;
+  background: #0385F4;
+  border: 1px solid #0385F4;
+  cursor: pointer;
+  margin: 20px 0;
+}
+/* line 97, ../sass/editor.scss */
+.btn:hover {
+  color: #0385F4;
+  background: #fff;
+}
+
+/* line 102, ../sass/editor.scss */
+.cb {
+  clear: both;
+}
+
+/* line 105, ../sass/editor.scss */
+.grey {
+  background: #f5f5f5;
+}
+
+/* line 108, ../sass/editor.scss */
+.submit_success {
+  margin-top: 200px;
+  background: #0385F4;
+  padding: 30px;
+  color: #fff;
+}
+/* line 113, ../sass/editor.scss */
+.submit_success .alert_title {
+  font-size: 40px;
+  opacity: 0.4;
+}
+/* line 117, ../sass/editor.scss */
+.submit_success .alert_content {
+  font-weight: 100;
+}
+/* line 120, ../sass/editor.scss */
+.submit_success .alert_footer {
+  opacity: 0.7;
+  font-size: 12px;
+  font-style: italic;
+}

css/grid.css

@@ -0,0 +1,230 @@
+/* line 2, style.scss */
+* {
+  -webkit-box-sizing: border-box;
+  -moz-box-sizing: border-box;
+  box-sizing: border-box;
+}
+
+/* line 3, style.scss */
+body {
+  margin: 0;
+  padding: 0;
+  font-family: sans-serif;
+}
+
+/* line 6, _grid.scss */
+.col-1, .col-m-1, .col-l-1, .col-2, .col-m-2, .col-l-2, .col-3, .col-m-3, .col-l-3, .col-4, .col-m-4, .col-l-4, .col-5, .col-m-5, .col-l-5, .col-6, .col-m-6, .col-l-6, .col-7, .col-m-7, .col-l-7, .col-8, .col-m-8, .col-l-8, .col-9, .col-m-9, .col-l-9, .col-10, .col-m-10, .col-l-10, .col-11, .col-m-11, .col-l-11, .col-12, .col-m-12, .col-l-12 {
+  float: right;
+  position: relative;
+  min-height: 1px;
+  padding: 0 10px;
+  /*border: 1px solid rgba(255, 0, 0, 0.5);*/
+}
+
+/* line 16, _grid.scss */
+.col-1 {
+  width: 8.33333%;
+}
+
+/* line 16, _grid.scss */
+.col-2 {
+  width: 16.66667%;
+}
+
+/* line 16, _grid.scss */
+.col-3 {
+  width: 25%;
+}
+
+/* line 16, _grid.scss */
+.col-4 {
+  width: 33.33333%;
+}
+
+/* line 16, _grid.scss */
+.col-5 {
+  width: 41.66667%;
+}
+
+/* line 16, _grid.scss */
+.col-6 {
+  width: 50%;
+}
+
+/* line 16, _grid.scss */
+.col-7 {
+  width: 58.33333%;
+}
+
+/* line 16, _grid.scss */
+.col-8 {
+  width: 66.66667%;
+}
+
+/* line 16, _grid.scss */
+.col-9 {
+  width: 75%;
+}
+
+/* line 16, _grid.scss */
+.col-10 {
+  width: 83.33333%;
+}
+
+/* line 16, _grid.scss */
+.col-11 {
+  width: 91.66667%;
+}
+
+/* line 16, _grid.scss */
+.col-12 {
+  width: 100%;
+}
+
+/* line 23, _grid.scss */
+.row {
+  margin: 0 -10px;
+  overflow: hidden;
+  *zoom: 1;
+}
+
+/* line 27, _grid.scss */
+.col-center {
+  margin: 0 auto;
+  float: none;
+}
+
+@media only screen and (min-width: 640px) {
+  /* line 30, _grid.scss */
+  .col-m-center {
+    margin: 0 auto;
+    float: none;
+  }
+
+  /* line 32, _grid.scss */
+  .col-m-1 {
+    width: 8.33333%;
+  }
+
+  /* line 32, _grid.scss */
+  .col-m-2 {
+    width: 16.66667%;
+  }
+
+  /* line 32, _grid.scss */
+  .col-m-3 {
+    width: 25%;
+  }
+
+  /* line 32, _grid.scss */
+  .col-m-4 {
+    width: 33.33333%;
+  }
+
+  /* line 32, _grid.scss */
+  .col-m-5 {
+    width: 41.66667%;
+  }
+
+  /* line 32, _grid.scss */
+  .col-m-6 {
+    width: 50%;
+  }
+
+  /* line 32, _grid.scss */
+  .col-m-7 {
+    width: 58.33333%;
+  }
+
+  /* line 32, _grid.scss */
+  .col-m-8 {
+    width: 66.66667%;
+  }
+
+  /* line 32, _grid.scss */
+  .col-m-9 {
+    width: 75%;
+  }
+
+  /* line 32, _grid.scss */
+  .col-m-10 {
+    width: 83.33333%;
+  }
+
+  /* line 32, _grid.scss */
+  .col-m-11 {
+    width: 91.66667%;
+  }
+
+  /* line 32, _grid.scss */
+  .col-m-12 {
+    width: 100%;
+  }
+}
+@media only screen and (min-width: 1024px) {
+  /* line 39, _grid.scss */
+  .col-l-center {
+    margin: 0 auto;
+    float: none;
+  }
+
+  /* line 41, _grid.scss */
+  .col-l-1 {
+    width: 8.33333%;
+  }
+
+  /* line 41, _grid.scss */
+  .col-l-2 {
+    width: 16.66667%;
+  }
+
+  /* line 41, _grid.scss */
+  .col-l-3 {
+    width: 25%;
+  }
+
+  /* line 41, _grid.scss */
+  .col-l-4 {
+    width: 33.33333%;
+  }
+
+  /* line 41, _grid.scss */
+  .col-l-5 {
+    width: 41.66667%;
+  }
+
+  /* line 41, _grid.scss */
+  .col-l-6 {
+    width: 50%;
+  }
+
+  /* line 41, _grid.scss */
+  .col-l-7 {
+    width: 58.33333%;
+  }
+
+  /* line 41, _grid.scss */
+  .col-l-8 {
+    width: 66.66667%;
+  }
+
+  /* line 41, _grid.scss */
+  .col-l-9 {
+    width: 75%;
+  }
+
+  /* line 41, _grid.scss */
+  .col-l-10 {
+    width: 83.33333%;
+  }
+
+  /* line 41, _grid.scss */
+  .col-l-11 {
+    width: 91.66667%;
+  }
+
+  /* line 41, _grid.scss */
+  .col-l-12 {
+    width: 100%;
+  }
+}

css/tinymce.css

@@ -0,0 +1,10 @@
+ins{
+	background: transparent !important;
+	color: inherit !important;
+}
+.diffins{
+	background:#4DB1FB !important;
+}
+.diffmod{
+	background:#4DFB74 !important;
+}

inc/approve.php

@@ -0,0 +1,204 @@
+<?php 
+if(isset($_GET["edit"])){
+	global $wpdb;
+	$table_name = $wpdb->prefix . 'visitors_edits';
+	$edit = $wpdb->get_row("SELECT * FROM ".$table_name." WHERE edit_id=".$_GET["edit"]);
+	$edit->edit_content=stripcslashes($edit->edit_content);
+	$edit->post=get_post($edit->post_id);
+	$options=get_option( "visitors_edits_options", [
+		"advanced_merge"=>null
+	]);
+	//Fix nl
+	//$edit->post->post_content=str_replace(["\r\n", "\r", "\n"], "<br/>",$edit->post->post_content);
+	//$edit->post_content=str_replace(["\r\n", "\r", "\n"], "<br/>",$edit->post_content);
+	//$edit->edit_content=str_replace(["\r\n", "\r", "\n"], "<br/>",$edit->edit_content);
+
+	$edit->post->post_content=nl2br($edit->post->post_content);
+	$edit->post_content=nl2br($edit->post_content);
+	$edit->edit_content=nl2br($edit->edit_content);
+
+	if($options["advanced_merge"]!=null){
+		$diff1=visitors_editsDIFF($edit->post_content,$edit->edit_content);
+		$conv_diff1=encodeDiff($diff1);
+		$diff=visitors_editsDIFF($conv_diff1["html"],$edit->post->post_content);
+		$diff=cleanEncodedDiff($diff);
+		$diff=decodeDiff($diff,$conv_diff1["codes"]);
+	}else{
+		$diff=visitors_editsDIFF($edit->post->post_content,$edit->edit_content);
+	}
+
+	$diff=cleanDiff($diff);
+	echo '<div style="display:none" id="visitors_edits_diff">'.$diff.'</div>';
+
+	showEditor($edit);
+}else{
+	noData("Select a visitor contribution");
+	?>
+	<script type="text/javascript">
+		setTimeout(function(){
+			window.location="<?php echo menu_page_url('visitors_edits_main',false);?>";
+		},2000)
+	</script>
+	<?php
+}
+
+function showEditor($edit,$editor_content=""){
+	$options=get_option( "visitors_edits_options", [
+		"edit_notify_message"=>"Thanks for your contribution to our blog, your contribution was reviewed and approved."
+	]);
+	?>
+	<div class="visitors_edits_review_editor">
+		<h1>Review a contribution</h1><a class="delete_edit" href="<?php echo menu_page_url('visitors_edits_main',false);?>&delete=<?php echo $edit->edit_id;?>">Delete this contribution</a>
+		<ul class="edit_info">
+			<li><a target="_blank" href="<?php echo get_permalink($edit->post->ID);?>">View original post</a></li>
+			<li>Author : <?php echo $edit->visitor_name; ?> <span class="mail"><?php echo $edit->visitor_email; ?></span></li>
+			<li>Submited on : 
+				<?php 
+					$creationDate=date_create($edit->edit_time);
+         			echo date_format($creationDate,"m/d/Y")." at ".date_format($creationDate,"h:i a");
+				?>
+			</li>
+			<li>Author comment :</li>
+			<p class="comment">
+				<?php echo stripcslashes($edit->visitor_comment); ?>		
+			</p>
+		</ul>
+		
+		<div class="cb"></div>
+		<form action="<?php echo menu_page_url('visitors_edits_main',false);?>" method="POST" onsubmit="return editSubmit()">
+			<div class="editor">
+				<?php 
+				wp_editor($editor_content,"diff_editor",[
+					"media_buttons"=>false,
+					"quicktags"=>false,
+					"textarea_name"=>"post_content",
+					"tinymce"=>[
+						"mode" => "textareas",
+						"theme" => "modern"
+				    ]
+				]); 
+				?>
+			</div>
+			<style>
+				.diff_editor ins{
+					background: #44B3FD !important;
+				}
+			</style>
+			<div class="controls">
+				<input type="hidden" value="<?php echo $edit->visitor_name; ?>" name="visitor_name">
+				<input type="hidden" value="<?php echo $edit->visitor_email; ?>" name="visitor_email">
+				<input type="hidden" value="<?php echo $edit->edit_id; ?>" name="edit_id">
+				<input type="hidden" value="<?php echo $edit->post_id; ?>" name="ID">
+
+				<div class="edit_notify">
+					<label><input type="checkbox" name="notify_visitor" id="edit_notify_activate"> Notify the author.</label>
+					<textarea name="admin_message" id="edit_notify_message"><?php echo $options["edit_notify_message"]; ?></textarea>
+				</div>
+				<button class="button-primary" type="submit">Save changes</button>
+			</div>
+		</form>
+		<script src="<?php echo visitors_edits::scriptUrl('admin');?>"></script>
+	</div>
+	<?php
+}
+
+function noData($msg){
+	?>
+	<h1 class="visitors_edits_no_data" style="display:block">
+	    <?php echo $msg; ?>
+	</h1>
+	<?php
+}
+
+function clearTag($tag,$content){
+	return preg_replace("#<".$tag.".*?>.*?</".$tag.">#i","", $content);
+}
+
+function addAttrTag($tag,$attr,$content){
+	return preg_replace("#<".$tag."(.*?)>#i","<".$tag." ".$attr."='1'$1>", $content);
+}
+function clearTagName($tag,$content){
+	return preg_replace("#</*".$tag.".*?>#i", "", $content);
+}
+function replaceTag($origin,$replace,$content){
+	return preg_replace("#(<(/*)(".$origin.")(.*?)>)#i", '[$2'.$replace.'$4]', $content);
+}
+function encodeDiff($diff){
+	//composer require paquettg/php-html-parser
+	require_once "parser.php";
+	$html=str_get_html($diff);
+	$encoded=[
+		"html"=>"",
+		"codes"=>[
+			"INS"=>[],
+			"DEL"=>[]
+		]
+	];
+	$id=0;
+	foreach($html->find('ins') as $ins){
+    	$encoded["codes"]["INS"][$id]=$ins->outertext;
+    	$ins->outertext="%INS".$id."%";
+    	$id++;
+	}
+	$id=0;
+	foreach($html->find('del') as $del){
+    	$encoded["codes"]["DEL"][$id]=$del->outertext;
+    	$del->outertext="%DEL".$id."%";
+    	$id++;
+	}
+	$encoded["html"]=$html->outertext;
+	return $encoded;
+}
+function cleanDiff($content){
+	require_once "parser.php";
+	$html=str_get_html($content);
+	foreach($html->find('ul') as $ul){
+		foreach($ul->find("br") as $br){
+			$br->outertext="";
+		}
+	}
+	foreach($html->find('ol') as $ol){
+		foreach($ol->find("br") as $br){
+			$br->outertext="";
+		}
+	} 
+	return $html;
+}
+function cleanEncodedDiff($content){
+	$html=str_get_html($content);
+	$delete_next=false;
+	$diffs = $html->find('ins, del');
+	for ($i=0; $i < count($diffs); $i++) { 
+		$diff=$diffs[$i];
+		if($delete_next){
+			$diff->outertext="";
+			$delete_next=false;
+			coutinue;
+		}else{
+			$isSpecial=preg_match("#%(INS|DEL)\d*?%#", $diff->innertext);
+			if ($isSpecial){
+		    	//is important
+		    	if(preg_match("#diffmod#",$diff->outertext)){
+		    		$delete_next=true;
+		    	}
+		    	$diff->outertext=$diff->innertext;
+		    }else{
+		    	if($diff->tag==="ins"){
+		    		$diff->outertext=$diff->innertext;
+		    	}else{
+		    		$diff->outertext="";
+		    	}
+		    }
+		}
+	}
+	return $html;
+}
+function decodeDiff($content,$codes){
+	foreach ($codes["INS"] as $id => $code) {
+		$content=str_replace("%INS".$id."%", $code, $content);
+	}
+	foreach ($codes["DEL"] as $id => $code) {
+		$content=str_replace("%DEL".$id."%", $code, $content);
+	}
+	return $content;
+}

inc/editor.php

@@ -0,0 +1,152 @@
+<?php
+$post=null;
+if(!empty($_POST)){
+	global $wpdb;
+	$wpdb->show_errors();
+	$table_name = $wpdb->prefix . 'visitors_edits';
+
+	$post_id=$_POST["post_id"];
+	$visitor_name=$_POST["visitor_name"];
+	$visitor_email=$_POST["visitor_email"];
+	$visitor_comment=$_POST["visitor_comment"];
+	$edit_content=$_POST["edit_content"];
+
+	$post = get_post($post_id);
+	
+	//Check if changed
+	if(md5($post->post_content)!==md5(stripcslashes($edit_content))){
+		
+		$wpdb->insert($table_name,[
+			"edit_time"=>date('Y-m-d H:i:s'),
+			"visitor_name"=>$visitor_name,
+			"visitor_email"=>$visitor_email,
+			"visitor_comment"=>$visitor_comment,
+			"edit_content"=>$edit_content,
+			"post_id"=>$post_id,
+			"post_content"=>$post->post_content
+		]);
+		require "mail.php";
+		$options=get_option( "visitors_edits_options", [
+			"admin_email"=>"",
+			"notify_admin"=>null,
+			"visitor_notif_message"=>"Your suggestion was submitted.",
+			"admin_notif_message"=>"A new suggestion was submitted."
+		]);
+		$mail = [
+			"post_title"=>$post->post_title,
+			"post_url"=>get_permalink($post_id),
+			"visitor_name"=>$visitor_name,
+			"visitor_email"=>$visitor_email,
+			"edit_time"=>date('H:i')." - ".date('d/m/y'),
+			"blog_title" => get_bloginfo("name"),
+			"visitor_notif_message"=>$options["visitor_notif_message"],
+			"admin_notif_message"=>$options["admin_notif_message"]
+		];
+
+		$visitor_submitionMail=new visitors_edits_EMAIL($mail,"visitor_submition");
+		$visitor_submitionMail->send($visitor_email);
+
+		if($options["notify_admin"]!=null){
+			$admin_email=$options["admin_email"];
+			$admin_submitionMail=new visitors_edits_EMAIL($mail,"admin_submition");
+			$admin_submitionMail->send($admin_email);
+		}
+	}
+}else{
+	global $wp;
+	global $post;
+	$post = get_posts([
+		"name"=> $wp->query_vars['visitors_edits_post_name'],
+		'post_type'   => 'post',
+	  	'post_status' => 'publish',
+	  	'numberposts' => 1
+	]);
+	$post=$post[0];
+	if($post->post_name!=$wp->query_vars['visitors_edits_post_name']){
+		header("Location:".get_site_url());
+	}
+}
+?>
+<!DOCTYPE html>
+<html xmlns="http://www.w1.org/1998/xhtml" xml:lang="en" lang="en">
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+	<link rel="stylesheet" type="text/css" href="<?php echo plugins_url( '/../css/grid.css',__FILE__ );?>">
+	<link rel="stylesheet" type="text/css" href="<?php echo plugins_url( '/../css/editor.css',__FILE__ );?>">
+	<script src="<?php echo visitors_edits::scriptUrl('jquery');?>"></script>
+	<title>Submit an edit</title>
+</head>
+<body <?php if(!empty($_POST)){echo 'class="grey"';} ?>>
+	<?php 
+		if(!empty($_POST)){
+			confirmSubmit("Edit Submitted!","Thanks for your contribution you will be notified once the edit reviewed.");
+		}else{
+			showForm();
+		}
+	?>
+</body>
+</html>
+<?php 
+function showForm(){
+	global $post;
+	?>
+	<div class="header">
+		<div class="header-title">Submit a contribution</div>
+		<p class="header-content">
+			<a href="<?php echo  get_permalink($post->ID) ?>">Original post : <?php echo $post->post_title; ?>.</a>
+		</p>
+	</div>
+	<form action="" method="POST" class="editor_form row" id="editor_form" onsubmit="return validateEdit.run()">
+		<div class="submit_fields col-12 col-l-4">
+			<ul class="submit_fields_error" id="submit_fields_error">
+			</ul>
+			<label for="name">Name</label>
+			<input class="text_field" type="text" name="visitor_name" placeholder="Name" id="name">
+			<label for="email">Email</label>
+			<input class="text_field" type="email" name="visitor_email" placeholder="Email" id="email">
+			<label for="comment">Description</label>
+			<textarea class="area_field" type="text" name="visitor_comment" value=" " id="comment">
+				
+			</textarea>
+			<input type="hidden" name="post_id" value="<?php echo $post->ID;?>">
+			<input type="hidden" name="post_url" value="<?php echo  get_permalink($post->ID);?>">
+			<input type="submit" class="btn" value="Submit for review">
+		</div>
+		<div class="editor_field col-12 col-l-8">
+			<?php
+				wp_editor($post->post_content,"edit_content",[
+					"media_buttons"=>false,
+					"quicktags"=>false,
+					"textarea_name"=>"edit_content",
+					"tinymce"=>[
+						"mode" => "textareas",
+						"theme" => "modern"
+				    ]
+				]);
+				_WP_Editors::enqueue_scripts();
+				print_footer_scripts();
+				_WP_Editors::editor_js();
+			?>
+		</div>
+		<div class="cb"></div>
+	</form>
+	<script src="<?php echo visitors_edits::scriptUrl('editor');?>"></script>
+	<?php
+}
+function confirmSubmit($title,$message){
+	?>
+	<div class="submit_success col-10 col-l-6 col-center">
+		<strong class="alert_title">
+			<?php echo $title;?>
+		</strong>
+		<p class="alert_content">
+			<?php echo $message;?>
+		</p>
+		<p class="alert_footer">
+			<a href="<?php echo $_POST['post_url']?>">Click here to continue back to the post</a>
+		</p>
+		</div>
+	</div>
+	<?php
+}
+?>

inc/mail.php

@@ -0,0 +1,48 @@
+<?php
+class visitors_edits_EMAIL{
+	var $subject;
+	var $body;
+	public function __construct($cpts,$template){
+		$template=$this->loadTemplate($template);
+		$this->subject=$this->inject($template["subject"],$cpts);
+		$this->body=$this->inject($template["body"],$cpts);
+	}
+	public function send($destination){
+
+		$options=get_option( "visitors_edits_options", [
+			"admin_email"=>"",
+			"notify_admin"=>null
+		]);
+
+		$headers= "MIME-Version: 1.0\r\n";
+		$headers .= "Content-Type: text/html; charset=UTF-8\r\n";
+
+		wp_mail($destination, $this->subject, $this->body,$headers);
+		/*
+		subject : $this->subject
+		body : $this->body
+		*/
+	}
+	private function loadTemplate($template){
+		ob_start();
+		require("mail_templates/".$template.".html");
+		$templateHtml=ob_get_clean();
+		preg_match("|<subject>(.*)</subject>|",$templateHtml,$subject);
+		$templateHtml=preg_replace("|<subject>.*</subject>|","",$templateHtml);
+		return [
+			"subject"=>$subject[1],
+			"body"=>$templateHtml
+		];	
+	}
+	private function inject($str,$body){
+		foreach ($body as $key => $value) {
+			$str=str_replace("#$key#",$value,$str);
+		}
+		return $str;
+	}
+	public function preview(){
+		echo $this->subject;
+		echo $this->body;
+	}
+}
+?>

inc/mail_templates/admin_submition.html

@@ -0,0 +1,89 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
+   "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns:v="urn:schemas-microsoft-com:vml">
+<head>
+	<subject>[#blog_title# | Visitors Contributions] - Contribution submited</subject>
+	<meta http-equiv="content-type" content="text/html, charset=utf-8">
+	<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0">
+	<link href='https://fonts.googleapis.com/css?family=Questrial' rel='stylesheet' type='text/css'>
+</head>
+<body leftmargin="0" rightmargin="0" marginwidth="0" marginheight="0">
+	<table bgcolor="#0385F4" width="100%" border="0" cellpadding="0" cellspacing="0">
+		<tbody>
+			<tr>
+				<td>
+					<table align="center" width="600" border="0" cellpadding="0" cellspacing="0">
+						<tbody>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;font-size:50px;color:#fff;mso-line-height-rule:exactly;line-height:28px">#blog_title#</td>
+							</tr>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;font-size:20px;color:#fff;mso-line-height-rule:exactly;line-height:28px">Contribution submited</td>
+							</tr>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+						</tbody>
+					</table>
+				</td>
+			</tr>
+		</tbody>
+	</table>
+
+	<table bgcolor="#E3E3E3" width="100%" border="0" cellpadding="0" cellspacing="0">
+		<tbody>
+			<tr>
+				<td>
+					<table align="center" width="600" border="0" cellpadding="0" cellspacing="0">
+						<tbody>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;color:#262626;mso-line-height-rule:exactly;line-height:28px">
+									#admin_notif_message#
+								</td>
+							</tr>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;color:#262626;mso-line-height-rule:exactly;line-height:28px">
+									Submition details
+								</td>
+							</tr>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;color:#262626;mso-line-height-rule:exactly;line-height:28px">
+									<a href="#post_url#" style="color:#262626">#post_title#</a>
+								</td>
+							</tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;color:#262626;mso-line-height-rule:exactly;line-height:28px">
+									Submited on : #edit_time#
+								</td>
+							</tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;color:#262626;mso-line-height-rule:exactly;line-height:28px">
+									Author : #visitor_name# (#visitor_email#)
+								</td>
+							</tr>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;color:#262626;mso-line-height-rule:exactly;line-height:28px">
+									<table align="center" bgcolor="#0385F4" width="100" border="0" cellpadding="0" cellspacing="0">
+										<tbody><tr><td height="4" style="font-size:4px; line-height:4px">&nbsp;</td></tr></tbody>
+									</table>
+								</td>
+							</tr>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;color:#262626;mso-line-height-rule:exactly;line-height:28px">
+									Visitors Contributions
+								</td>
+							</tr>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+						</tbody>
+					</table>
+				</td>
+			</tr>
+		</tbody>
+	</table>
+</body>
+</html>

inc/mail_templates/visitor_approval.html

@@ -0,0 +1,84 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
+   "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns:v="urn:schemas-microsoft-com:vml">
+<head>
+	<subject>[#blog_title#] - Contribution reviewed</subject>
+	<meta http-equiv="content-type" content="text/html, charset=utf-8">
+	<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0">
+	<link href='https://fonts.googleapis.com/css?family=Questrial' rel='stylesheet' type='text/css'>
+</head>
+<body leftmargin="0" rightmargin="0" marginwidth="0" marginheight="0">
+	<table bgcolor="#0385F4" width="100%" border="0" cellpadding="0" cellspacing="0">
+		<tbody>
+			<tr>
+				<td>
+					<table align="center" width="600" border="0" cellpadding="0" cellspacing="0">
+						<tbody>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;font-size:50px;color:#fff;mso-line-height-rule:exactly;line-height:28px">#blog_title#</td>
+							</tr>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;font-size:20px;color:#fff;mso-line-height-rule:exactly;line-height:28px">Contribution approved</td>
+							</tr>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+						</tbody>
+					</table>
+				</td>
+			</tr>
+		</tbody>
+	</table>
+
+	<table bgcolor="#E3E3E3" width="100%" border="0" cellpadding="0" cellspacing="0">
+		<tbody>
+			<tr>
+				<td>
+					<table align="center" width="600" border="0" cellpadding="0" cellspacing="0">
+						<tbody>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;color:#262626;mso-line-height-rule:exactly;line-height:28px">
+									<strong>Dear #visitor_name#</strong>
+								</td>
+							</tr>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;color:#262626;mso-line-height-rule:exactly;line-height:28px">
+									#admin_message#
+								</td>
+							</tr>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;color:#262626;mso-line-height-rule:exactly;line-height:28px">
+									<a href="#post_url#" style="color:#262626">#post_title#</a>
+								</td>
+							</tr>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;color:#262626;mso-line-height-rule:exactly;line-height:28px">
+									<table align="center" bgcolor="#0385F4" width="100" border="0" cellpadding="0" cellspacing="0">
+										<tbody><tr><td height="4" style="font-size:4px; line-height:4px">&nbsp;</td></tr></tbody>
+									</table>
+								</td>
+							</tr>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;color:#262626;mso-line-height-rule:exactly;line-height:28px">
+									#blog_title# team
+								</td>
+							</tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;color:#262626;mso-line-height-rule:exactly;line-height:28px">
+									Regards
+								</td>
+							</tr>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+						</tbody>
+					</table>
+				</td>
+			</tr>
+		</tbody>
+	</table>
+</body>
+</html>

inc/mail_templates/visitor_submition.html

@@ -0,0 +1,95 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
+   "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns:v="urn:schemas-microsoft-com:vml">
+<head>
+	<subject>[#blog_title#] - Contribution submited</subject>
+	<meta http-equiv="content-type" content="text/html, charset=utf-8">
+	<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0">
+	<link href='https://fonts.googleapis.com/css?family=Questrial' rel='stylesheet' type='text/css'>
+</head>
+<body leftmargin="0" rightmargin="0" marginwidth="0" marginheight="0">
+	<table bgcolor="#0385F4" width="100%" border="0" cellpadding="0" cellspacing="0">
+		<tbody>
+			<tr>
+				<td>
+					<table align="center" width="600" border="0" cellpadding="0" cellspacing="0">
+						<tbody>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;font-size:50px;color:#fff;mso-line-height-rule:exactly;line-height:28px">#blog_title#</td>
+							</tr>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;font-size:20px;color:#fff;mso-line-height-rule:exactly;line-height:28px">Contribution submited</td>
+							</tr>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+						</tbody>
+					</table>
+				</td>
+			</tr>
+		</tbody>
+	</table>
+
+	<table bgcolor="#E3E3E3" width="100%" border="0" cellpadding="0" cellspacing="0">
+		<tbody>
+			<tr>
+				<td>
+					<table align="center" width="600" border="0" cellpadding="0" cellspacing="0">
+						<tbody>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;color:#262626;mso-line-height-rule:exactly;line-height:28px">
+									<strong>Dear #visitor_name#</strong>
+								</td>
+							</tr>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;color:#262626;mso-line-height-rule:exactly;line-height:28px">
+									#visitor_notif_message#
+								</td>
+							</tr>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;color:#262626;mso-line-height-rule:exactly;line-height:28px">
+									Submition details
+								</td>
+							</tr>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;color:#262626;mso-line-height-rule:exactly;line-height:28px">
+									<a href="#post_url#" style="color:#262626">#post_title#</a>
+								</td>
+							</tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;color:#262626;mso-line-height-rule:exactly;line-height:28px">
+									Submited on : #edit_time#
+								</td>
+							</tr>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;color:#262626;mso-line-height-rule:exactly;line-height:28px">
+									<table align="center" bgcolor="#0385F4" width="100" border="0" cellpadding="0" cellspacing="0">
+										<tbody><tr><td height="4" style="font-size:4px; line-height:4px">&nbsp;</td></tr></tbody>
+									</table>
+								</td>
+							</tr>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;color:#262626;mso-line-height-rule:exactly;line-height:28px">
+									#blog_title# team
+								</td>
+							</tr>
+							<tr>
+								<td align="center "style="font-family:'Questrial',Helvetica,sans-serif; text-align:center;color:#262626;mso-line-height-rule:exactly;line-height:28px">
+									Regards
+								</td>
+							</tr>
+							<tr><td height="30" style="font-size:30px; line-height:30px">&nbsp;</td></tr>
+						</tbody>
+					</table>
+				</td>
+			</tr>
+		</tbody>
+	</table>
+</body>
+</html>

inc/main.php

@@ -0,0 +1,86 @@
+<?php 
+global $wpdb;
+$table_name = $wpdb->prefix . 'visitors_edits';
+if(isset($_GET["delete"])){
+	$wpdb->delete($table_name, array( 'edit_id' => $_GET["delete"] ) );
+	flashMessage("The review was deleted","danger");
+}
+if(!empty($_POST)){
+    wp_update_post([
+		"ID"=>$_POST["ID"],
+		"post_content"=>$_POST["post_content"]
+	]);
+	$wpdb->delete($table_name, array( 'edit_id' => $_POST["edit_id"] ) );
+	flashMessage("The post was updated successfully","");
+    //Notify visitor
+    if(isset($_POST["notify_visitor"])){
+    require 'mail.php';
+        $post = get_post($_POST["ID"]);
+        $mail = [
+            "visitor_name"=>$_POST["visitor_name"],
+            "post_title"=>$post->post_title,
+            "post_url"=>get_permalink($_POST["ID"]),
+            "blog_title" => get_bloginfo("name"),
+            "admin_message"=>$_POST["admin_message"]
+        ];
+        $visitor_submitionMail=new visitors_edits_EMAIL($mail,"visitor_approval");
+        $visitor_submitionMail->send($_POST["visitor_email"]);
+    }
+}
+$edits = $wpdb->get_results("SELECT * FROM ".$table_name);
+for ($r=0; $r <count($edits); $r++) { 
+	$edits[$r]->post=get_post($edits[$r]->post_id);
+}
+?>
+<h1 class="visitors_edits_no_data" <?php if(count($edits)==0){echo 'style="display:block"';}?>>
+    Emty pending list
+</h1>
+<div class="visitors_edits_pending" <?php if(count($edits)==0){echo 'style="display:none"';}?>>
+    <h1>Pending reviews (<?php echo count($edits);?>)</h1>
+    <table class="widefat pending">
+        <thead>
+            <tr>
+                <th>Post</th>
+                <th>Author</th>       
+                <th>Author comment</th>
+                <th>Date</th>
+                <th>Options</th>
+            </tr>
+        </thead>
+        <tbody>
+<?php
+for ($i=0; $i < count($edits); $i++) { 
+	$edit=$edits[$i];
+	?>
+       <tr>
+         <td><?php echo $edit->post->post_title; ?></td>
+         <td><?php echo $edit->visitor_name?></td>
+         <td>
+            <?php echo stripslashes($edit->visitor_comment); ?>
+         </td>
+         <td><?php
+         	$creationDate=date_create($edit->edit_time);
+         	echo date_format($creationDate,"m/d/Y")." at ".date_format($creationDate,"h:i a")
+         	?></td>
+         <td>
+         	<a class="button-primary" href="<?php echo menu_page_url('visitors_edits_approve',false);?>&edit=<?php echo $edit->edit_id;?>">Review</a>
+    		<a class="button-secondary" href="<?php echo menu_page_url('visitors_edits_main',false);?>&delete=<?php echo $edit->edit_id;?>">Delete</a>
+    	</td>
+       </tr>
+	<?php 
+}
+?>
+        </tbody>
+    </table>
+</div>
+<?php
+function flashMessage($msg,$type){
+    ?>
+    <div class="visitors_flashMessage <?php echo $type ?>">
+        <p>
+            <?php echo $msg ;?>
+        </p>
+    </div>
+    <?php
+}
+?>

inc/settings.php

@@ -0,0 +1,71 @@
+<?php 
+	$options=[];
+	if(isset($_POST["save_settings"])){
+		$options=[
+			"admin_email"=>$_POST["admin_email"],
+			"notify_admin"=>$_POST["notify_admin"],
+			"advanced_merge"=>$_POST["advanced_merge"],
+			"admin_notif_message"=>$_POST["admin_notif_message"],
+			"visitor_notif_message"=>$_POST["visitor_notif_message"],
+			"edit_notify_message"=>$_POST["edit_notify_message"],
+			"propose_edit_link"=>$_POST["propose_edit_link"]
+		];
+		update_option( "visitors_edits_options", $options );
+		flashMessage("Settings saved.","");
+	}else{
+		$options=get_option( "visitors_edits_options", [
+			"admin_email"=>"",
+			"notify_admin"=>null,
+			"advanced_merge"=>null,
+			"visitor_notif_message"=>"Your suggestion was submitted.",
+			"admin_notif_message"=>"A new suggestion was submitted.",
+			"edit_notify_message"=>"Thanks for your contribution to our blog, your contribution was reviewed and approved.",
+			"propose_edit_link"=>"<p><a href='#post_link#'>Propose an edit</a></p>"
+		]);
+	}
+?>
+<div class="visitors_edits_admin">
+	<h2>Settings</h2>
+	<form action="" method="post">
+		<div class="control">
+			<label>Propose an edit link</label>
+			<input type="text" name="propose_edit_link" value="<?php echo stripcslashes($options['propose_edit_link']) ?>">
+		</div>
+		<div class="control">
+			<label>Admin notification message</label>
+			<textarea name="admin_notif_message" class="notif_message" value=""><?php echo $options['admin_notif_message'] ?></textarea>
+		</div>
+		<div class="control">
+			<label>Visitor notification message (On Submit)</label>
+			<textarea name="visitor_notif_message" class="notif_message" value=""><?php echo $options['visitor_notif_message'] ?></textarea>
+		</div>
+		<div class="control">
+			<label>Visitor notification message (On Review)</label>
+			<textarea name="edit_notify_message" class="notif_message" value=""><?php echo $options['edit_notify_message'] ?></textarea>
+		</div>
+		<div class="control">
+			<label>Admin email</label>
+			<input type="text" placeholder="Email" name="admin_email" value="<?php echo $options['admin_email'] ?>">
+		</div>
+		<div class="control">
+			<label><input type="checkbox" name="notify_admin" <?php echo (($options['notify_admin']==null) ? "" : "checked")?>>Notify me on new submits.</label>
+		</div>
+		<div class="control">
+			<label><input type="checkbox" name="advanced_merge" <?php echo (($options['advanced_merge']==null) ? "" : "checked")?>>Use deep merging.</label>
+		</div>
+		<div class="control">
+			<input type="submit" class="save_btn button-primary" value="Save settings" name="save_settings">
+		</div>
+	</form>
+</div>
+<?php
+function flashMessage($msg,$type){
+    ?>
+    <div class="visitors_flashMessage <?php echo $type ?>">
+        <p>
+            <?php echo $msg ;?>
+        </p>
+    </div>
+    <?php
+}
+?>

js/admin.js

@@ -0,0 +1,8 @@
+var $notification=document.querySelector("#edit_notify_message");
+document.querySelector("#edit_notify_activate").addEventListener("change",function(){
+    if(this.checked){
+        $notification.style.display="block";
+    }else{
+        $notification.style.display="none";
+    }
+});

js/approve.js

@@ -0,0 +1,121 @@
+visitors_edits_tools={
+    data:{},
+    clearTag:function(content,tag){
+        var regexp=RegExp("<"+tag+">.*?<\/"+tag+">", "gi");
+        var editedContent=content.replace(regexp,"");
+        return editedContent;
+    },
+    clearTag:function(content,tag){
+        var $contentDiv=jQuery("<div/>").html(content);
+        $contentDiv.find(tag).each(function(){
+            $tag=jQuery(this);
+            $tag.remove();
+        });
+        return $contentDiv.html();
+    },
+    clearTagName:function(content,tag){
+        var $contentDiv=jQuery("<div/>").html(content);
+        $contentDiv.find(tag).each(function(){
+            $tag=jQuery(this);
+            $tag.replaceWith($tag.html());
+        });
+        return $contentDiv.html();
+    },
+    clearClassName:function(content,classname){
+        var $contentDiv=jQuery("<div/>").html(content);
+        $contentDiv.find("."+classname).each(function(){
+            $elm=jQuery(this);
+            $elm.removeClass(classname);
+        });
+        return $contentDiv.html();
+    },
+    clear:function(ed){
+        var elt=ed.selection.getNode();
+        elt.remove();
+    },
+    clean:function(ed){
+        var elt=ed.selection.getNode();
+        var eltContent=elt.outerHTML;
+        eltContent=visitors_edits_tools.clearTagName(eltContent,"ins");
+        eltContent=visitors_edits_tools.clearTagName(eltContent,"del");
+        elt.remove();
+        ed.execCommand('mceInsertContent', 0, eltContent);
+    }
+};
+(function($){
+	//Create plugin
+	tinymce.create('tinymce.plugins.visitors_edits', {
+        init : function(ed, url) {
+            //Add buttons
+            ed.addButton('visitors_edits_approve', {
+                title : 'Approve',
+                cmd : 'visitors_edits_approve',
+                image : url + '/../img/approve.png'
+            });
+            ed.addButton('visitors_edits_reject', {
+                title : 'Reject',
+                cmd : 'visitors_edits_reject',
+                image : url + '/../img/reject.png',
+            });
+            ed.addButton('visitors_edits_clean', {
+                title : 'Clean All',
+                cmd : 'visitors_edits_clean',
+                image : url + '/../img/clean.png'
+            });
+            //Add Commands
+            ed.addCommand('visitors_edits_approve', function() {
+                var elt=ed.selection.getNode();
+                if(elt.tagName.toLowerCase()=="ins"){
+                    visitors_edits_tools.clean(ed);
+                }
+                if(elt.tagName.toLowerCase()=="del"){
+                    visitors_edits_tools.clear(ed);
+                }
+            });
+            ed.addCommand('visitors_edits_reject', function() {
+            	var elt=ed.selection.getNode();
+                if(elt.tagName.toLowerCase()=="del"){
+                    visitors_edits_tools.clean(ed);
+                }
+                if(elt.tagName.toLowerCase()=="ins"){
+                    visitors_edits_tools.clear(ed);
+                }
+            });
+            ed.addCommand('visitors_edits_clean',function(){
+            	var content=ed.getContent();
+            	content=visitors_edits_tools.clearTagName(content,"ins");
+            	content=visitors_edits_tools.clearTag(content,"del");
+                content=visitors_edits_tools.clearClassName(content,"diffmod");
+            	ed.setContent(content);
+            });
+            //Load content
+            setTimeout(function(){
+                //Procedce diff Html
+                var diffDiv=document.querySelector("#visitors_edits_diff");
+                var $diffDiv=jQuery(diffDiv);
+                $diffDiv.find("ins").each(function(){
+                    var $ins=$(this);
+                    if([""," "].indexOf($ins.html())>-1){
+                        $ins.remove();
+                    }
+                });
+                ed.setContent($diffDiv.html());
+                //Clean content
+                var $diffDiv=jQuery("<div/>").html(ed.getContent());
+                $diffDiv.find("p").each(function(){
+                    var $p=$(this);
+                    if(["&nbsp;"].indexOf($p.html())>-1){
+                        $p.remove();
+                    }
+                });
+                ed.setContent($diffDiv.html());
+            },0);
+        },
+    });
+    // Register plugin
+    tinymce.PluginManager.add( 'visitors_edits', tinymce.plugins.visitors_edits );
+})(jQuery);
+function editSubmit(){
+	tinyMCE.activeEditor.execCommand("visitors_edits_clean");
+	return true;
+}

js/editor.js

@@ -0,0 +1,41 @@
+var validateEdit={
+	container:jQuery("#submit_fields_error"),
+	validateRules:{
+		name:{
+			required:true,
+			msg:"Name field required"
+		},
+		email:{
+			required:true,
+			msg:"Email field required"
+		},
+		comment:{
+			required:true,
+			msg:"Please describe your edit to speed up the approval"
+		}
+	},
+	run:function(){
+		var errors=[];
+		jQuery.each(this.validateRules, function(id, rule) {
+		    var element=jQuery("#"+id);
+		    if(rule.required && element.val()===""){
+		    	errors.push(id);
+		    }
+		});
+		if(errors.length){
+			this.container.html("");
+			for (var i = 0; i < errors.length; i++) {
+				this.container.append("<li>"+this.validateRules[errors[i]].msg+"</li>")
+			}
+			return false;
+		}else{
+			return true;
+		}
+	},init:function(){
+		jQuery.each(this.validateRules, function(id, rule) {
+		    var element=jQuery("#"+id);
+		    element.val("");
+		});
+	}
+}
+validateEdit.init();

vendor/autoload.php

@@ -0,0 +1,7 @@
+<?php
+
+// autoload.php @generated by Composer
+
+require_once __DIR__ . '/composer' . '/autoload_real.php';
+
+return ComposerAutoloaderInit8a728e750e2d17f1173f31bda205adec::getLoader();

vendor/caxy/php-htmldiff/CHANGELOG.md

@@ -0,0 +1,145 @@
+# Change Log
+
+## [v0.1.1](https://github.com/caxy/php-htmldiff/tree/v0.1.1) (2016-03-16)
+[Full Changelog](https://github.com/caxy/php-htmldiff/compare/0.1.0...v0.1.1)
+
+**Features and Enhancements:**
+
+- Update TableDiff HTMLPurifier Initialization [\#35](https://github.com/caxy/php-htmldiff/pull/35) ([dbergunder](https://github.com/dbergunder))
+
+**Miscellaneous:**
+
+- Update the README and add additional documentation [\#34](https://github.com/caxy/php-htmldiff/pull/34) ([jschroed91](https://github.com/jschroed91))
+
+## [0.1.0](https://github.com/caxy/php-htmldiff/tree/0.1.0) (2016-03-10)
+
+[Full Changelog](https://github.com/caxy/php-htmldiff/compare/0.0.14...0.1.0)
+
+**Features and Enhancements:**
+
+- Allow caching of the calculated diffs using a doctrine cache provider [\#33](https://github.com/caxy/php-htmldiff/pull/33) ([jschroed91](https://github.com/jschroed91))
+- Create configuration class for HtmlDiff config options [\#32](https://github.com/caxy/php-htmldiff/pull/32) ([jschroed91](https://github.com/jschroed91))
+- New Feature: Table Diffing [\#31](https://github.com/caxy/php-htmldiff/pull/31) ([jschroed91](https://github.com/jschroed91))
+- Detect link changes to resolve [\#28](https://github.com/caxy/php-htmldiff/issues/28) [\#30](https://github.com/caxy/php-htmldiff/pull/30) ([jschroed91](https://github.com/jschroed91))
+- Setup PHPUnit testsuite with basic functional test and a few test cases [\#26](https://github.com/caxy/php-htmldiff/pull/26) ([jschroed91](https://github.com/jschroed91))
+
+## [0.1.0-beta.1](https://github.com/caxy/php-htmldiff/tree/0.1.0-beta.1) (2016-02-26)
+[Full Changelog](https://github.com/caxy/php-htmldiff/compare/0.0.14...0.1.0-beta.1)
+
+**Features and Enhancements:**
+
+- New Feature: Table Diffing [\#31](https://github.com/caxy/php-htmldiff/pull/31) ([jschroed91](https://github.com/jschroed91))
+- Detect link changes to resolve [\#28](https://github.com/caxy/php-htmldiff/issues/28) [\#30](https://github.com/caxy/php-htmldiff/pull/30) ([jschroed91](https://github.com/jschroed91))
+- Setup PHPUnit testsuite with basic functional test and a few test cases [\#26](https://github.com/caxy/php-htmldiff/pull/26) ([jschroed91](https://github.com/jschroed91))
+
+## [0.0.14](https://github.com/caxy/php-htmldiff/tree/0.0.14) (2016-02-03)
+[Full Changelog](https://github.com/caxy/php-htmldiff/compare/0.0.13...0.0.14)
+
+**Fixed bugs:**
+
+- Fix HtmlDiff matching logic skipping over single word matches [\#25](https://github.com/caxy/php-htmldiff/pull/25) ([jschroed91](https://github.com/jschroed91))
+
+## [0.0.13](https://github.com/caxy/php-htmldiff/tree/0.0.13) (2016-01-12)
+[Full Changelog](https://github.com/caxy/php-htmldiff/compare/0.0.12...0.0.13)
+
+**Fixed bugs:**
+
+- Misc. list diffing updates and fixes [\#24](https://github.com/caxy/php-htmldiff/pull/24) ([jschroed91](https://github.com/jschroed91))
+- Updated list diff class to maintain the tags on lists. [\#23](https://github.com/caxy/php-htmldiff/pull/23) ([adamCaxy](https://github.com/adamCaxy))
+
+## [0.0.12](https://github.com/caxy/php-htmldiff/tree/0.0.12) (2015-11-11)
+[Full Changelog](https://github.com/caxy/php-htmldiff/compare/0.0.11...0.0.12)
+
+**Fixed bugs:**
+
+- feature-list\_diffing-new [\#20](https://github.com/caxy/php-htmldiff/pull/20) ([adamCaxy](https://github.com/adamCaxy))
+
+## [0.0.11](https://github.com/caxy/php-htmldiff/tree/0.0.11) (2015-11-06)
+[Full Changelog](https://github.com/caxy/php-htmldiff/compare/0.0.10...0.0.11)
+
+**Features and Enhancements:**
+
+- Feature list diffing new [\#19](https://github.com/caxy/php-htmldiff/pull/19) ([adamCaxy](https://github.com/adamCaxy))
+
+## [0.0.10](https://github.com/caxy/php-htmldiff/tree/0.0.10) (2015-10-21)
+[Full Changelog](https://github.com/caxy/php-htmldiff/compare/0.0.9...0.0.10)
+
+**Fixed bugs:**
+
+- Fix: Updated code so that null is not given in list formatting. [\#17](https://github.com/caxy/php-htmldiff/pull/17) ([adamCaxy](https://github.com/adamCaxy))
+
+## [0.0.9](https://github.com/caxy/php-htmldiff/tree/0.0.9) (2015-10-20)
+[Full Changelog](https://github.com/caxy/php-htmldiff/compare/0.0.8...0.0.9)
+
+**Fixed bugs:**
+
+- Missed an array\_column in ListDiff. Updated to use ArrayColumn function. [\#16](https://github.com/caxy/php-htmldiff/pull/16) ([jschroed91](https://github.com/jschroed91))
+
+## [0.0.8](https://github.com/caxy/php-htmldiff/tree/0.0.8) (2015-10-20)
+[Full Changelog](https://github.com/caxy/php-htmldiff/compare/0.0.7...0.0.8)
+
+**Fixed bugs:**
+
+- Added update for php versions that do not have array\_column as a function. [\#15](https://github.com/caxy/php-htmldiff/pull/15) ([jschroed91](https://github.com/jschroed91))
+
+## [0.0.7](https://github.com/caxy/php-htmldiff/tree/0.0.7) (2015-10-20)
+[Full Changelog](https://github.com/caxy/php-htmldiff/compare/0.0.6...0.0.7)
+
+**Features and Enhancements:**
+
+- Created ListDiff class to handle diffing of lists. [\#14](https://github.com/caxy/php-htmldiff/pull/14) ([adamCaxy](https://github.com/adamCaxy))
+
+## [0.0.6](https://github.com/caxy/php-htmldiff/tree/0.0.6) (2015-09-11)
+[Full Changelog](https://github.com/caxy/php-htmldiff/compare/0.0.5...0.0.6)
+
+**Features and Enhancements:**
+
+- Feature - html tag isolation [\#12](https://github.com/caxy/php-htmldiff/pull/12) ([jschroed91](https://github.com/jschroed91))
+- ICC-4313 | ICC-4314 | Replace Special HTML Elements with placeholder tokens and update diffing logic [\#11](https://github.com/caxy/php-htmldiff/pull/11) ([usaqlain01](https://github.com/usaqlain01))
+
+## [0.0.5](https://github.com/caxy/php-htmldiff/tree/0.0.5) (2015-03-03)
+[Full Changelog](https://github.com/caxy/php-htmldiff/compare/0.0.4...0.0.5)
+
+**Features and Enhancements:**
+
+- Support derived classes [\#10](https://github.com/caxy/php-htmldiff/pull/10) ([mkalkbrenner](https://github.com/mkalkbrenner))
+
+## [0.0.4](https://github.com/caxy/php-htmldiff/tree/0.0.4) (2015-01-09)
+[Full Changelog](https://github.com/caxy/php-htmldiff/compare/0.0.3...0.0.4)
+
+**Fixed bugs:**
+
+- Check for empty oldText or newText before processing del or ins in processReplaceOperation [\#9](https://github.com/caxy/php-htmldiff/pull/9) ([jschroed91](https://github.com/jschroed91))
+
+## [0.0.3](https://github.com/caxy/php-htmldiff/tree/0.0.3) (2015-01-08)
+[Full Changelog](https://github.com/caxy/php-htmldiff/compare/0.0.2...0.0.3)
+
+**Features and Enhancements:**
+
+- Add option to insert a space between del and ins tags [\#8](https://github.com/caxy/php-htmldiff/pull/8) ([jschroed91](https://github.com/jschroed91))
+- Updated demo to accept input and diff on the fly [\#5](https://github.com/caxy/php-htmldiff/pull/5) ([jschroed91](https://github.com/jschroed91))
+
+## [0.0.2](https://github.com/caxy/php-htmldiff/tree/0.0.2) (2014-08-12)
+[Full Changelog](https://github.com/caxy/php-htmldiff/compare/0.0.1...0.0.2)
+
+**Features and Enhancements:**
+
+- Break out HTML content to individual HTML, CSS, JS files [\#6](https://github.com/caxy/php-htmldiff/pull/6) ([mgersten-caxy](https://github.com/mgersten-caxy))
+
+**Fixed bugs:**
+
+- Fix error caused when passing empty array into setSpecialCaseTags [\#7](https://github.com/caxy/php-htmldiff/pull/7) ([jschroed91](https://github.com/jschroed91))
+
+## [0.0.1](https://github.com/caxy/php-htmldiff/tree/0.0.1) (2014-07-31)
+**Features and Enhancements:**
+
+- Added static properties for the default config variables [\#4](https://github.com/caxy/php-htmldiff/pull/4) ([jschroed91](https://github.com/jschroed91))
+- Feature nonpartial word diffing [\#3](https://github.com/caxy/php-htmldiff/pull/3) ([jschroed91](https://github.com/jschroed91))
+- Added option to group together diffed words in output [\#2](https://github.com/caxy/php-htmldiff/pull/2) ([jschroed91](https://github.com/jschroed91))
+
+
+
+\* *This Change Log was automatically generated by [github_changelog_generator](https://github.com/skywinder/Github-Changelog-Generator)*
+
+
+\* *This Change Log was automatically generated by [github_changelog_generator](https://github.com/skywinder/Github-Changelog-Generator)*

vendor/caxy/php-htmldiff/CODE_OF_CONDUCT.md

@@ -0,0 +1,74 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age, body
+size, disability, ethnicity, gender identity and expression, level of experience,
+nationality, personal appearance, race, religion, or sexual identity and
+orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+  address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+  professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an appointed
+representative at an online or offline event. Representation of a project may be
+further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at dev@caxy.com. All
+complaints will be reviewed and investigated and will result in a response that
+is deemed necessary and appropriate to the circumstances. The project team is
+obligated to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
+available at [http://contributor-covenant.org/version/1/4][version]
+
+[homepage]: http://contributor-covenant.org
+[version]: http://contributor-covenant.org/version/1/4/

vendor/caxy/php-htmldiff/CONTRIBUTING.md

@@ -0,0 +1,33 @@
+Contributing
+============
+
+First of all, **thank you** for contributing, **you are awesome**!
+
+Here are a few rules to follow in order to ease code reviews, and discussions before
+maintainers accept and merge your work.
+
+You MUST follow the [PSR-1](http://www.php-fig.org/psr/1/) and
+[PSR-2](http://www.php-fig.org/psr/2/). If you don't know about any of them, you
+should really read the recommendations. Can't wait? Use the [PHP-CS-Fixer
+tool](http://cs.sensiolabs.org/).
+
+You MUST run the test suite.
+
+You MUST write (or update) unit tests.
+
+You SHOULD write documentation.
+
+Please, write [commit messages that make
+sense](http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html),
+and [rebase your branch](http://git-scm.com/book/en/Git-Branching-Rebasing)
+before submitting your Pull Request.
+
+One may ask you to [squash your
+commits](http://gitready.com/advanced/2009/02/10/squashing-commits-with-rebase.html)
+too. This is used to "clean" your Pull Request before merging it (we don't want
+commits such as `fix tests`, `fix 2`, `fix 3`, etc.).
+
+Also, while creating your Pull Request on GitHub, you MUST write a description
+which gives the context and/or explains why you are creating it.
+
+Thank you!

vendor/caxy/php-htmldiff/LICENSE

@@ -0,0 +1,130 @@
+GNU GENERAL PUBLIC LICENSE
+
+Version 2, June 1991
+
+Copyright (C) 1989, 1991 Free Software Foundation, Inc.  
+51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+
+Everyone is permitted to copy and distribute verbatim copies