Add backup feature

Add backup feature to the core.

.htaccess

@@ -76,10 +76,9 @@ DirectoryIndex index.php index.html index.htm
 # RewriteBase /
 
 # Pass all requests not referring directly to files in the filesystem to index.php.
-RewriteCond %{REQUEST_FILENAME} !-f
-RewriteCond %{REQUEST_FILENAME} !-d
-RewriteCond $1 !^(index\.php)
-RewriteRule ^(.*)$ index.php/$1 [L]
+  RewriteCond %{REQUEST_FILENAME} !-f
+  RewriteCond %{REQUEST_FILENAME} !-d
+  RewriteRule ^ index.php [L]
 
 </IfModule>
 

config/config.ini.example

@@ -13,7 +13,9 @@ social.facebook = "https://www.facebook.com"
 social.google = "https://plus.google.com"
 social.tumblr = "http://www.tumblr.com"
 
-; Custom menu link
+; Custom menu link. 
+; See example below:
+; "Google->http://www.google.com|Wikipedia->http://www.wikipedia.org". 
 blog.menu = ""
 
 ; Breadcrumb home text. Useful when installed on subfolder.

system/admin/admin.php

@@ -1,5 +1,6 @@
 <?php
 
+// Return username.ini value
 function user($key, $user=null) {
 	$value = 'config/users/' . $user . '.ini';
 	static $_config = array();
@@ -11,6 +12,7 @@ function user($key, $user=null) {
 	}
 }
 
+// Create a session
 function session($user, $pass, $str = null) {
 		$user_file = 'config/users/' . $user . '.ini';
 		$user_pass = user('password', $user);
@@ -29,6 +31,7 @@ function session($user, $pass, $str = null) {
 		}
 }
 
+// Edit blog posts
 function edit_post($title, $tag, $url, $content, $oldfile, $destination = null) {
 
 	$oldurl = explode('_', $oldfile);
@@ -80,6 +83,7 @@ function edit_post($title, $tag, $url, $content, $oldfile, $destination = null)
 		
 }
 
+// Edit static page
 function edit_page($title, $url, $content, $oldfile, $destination = null) {
 
 	$dir = substr($oldfile, 0, strrpos($oldfile, '/'));
@@ -118,6 +122,7 @@ function edit_page($title, $url, $content, $oldfile, $destination = null) {
 		
 }
 
+// Add blog post
 function add_post($title, $tag, $url, $content, $user) {
 
 	$post_date = date('Y-m-d-H-i-s');
@@ -149,6 +154,7 @@ function add_post($title, $tag, $url, $content, $user) {
 	
 }
 
+// Add static page
 function add_page($title, $url, $content) {
 
 	$post_title = $title;
@@ -177,6 +183,7 @@ function add_page($title, $url, $content) {
 	
 }
 
+// Delete blog post
 function delete_post($file, $destination) {
 	$deleted_content = $file;
 	if(!empty($deleted_content)) {
@@ -192,6 +199,7 @@ function delete_post($file, $destination) {
 	}
 }
 
+// Delete static page
 function delete_page($file, $destination) {
 	$deleted_content = $file;
 	if(!empty($deleted_content)) {
@@ -207,6 +215,7 @@ function delete_page($file, $destination) {
 	}
 }
 
+// Edit user profile
 function edit_profile($title, $content, $user) {
 
 	$user_title = $title;
@@ -231,6 +240,7 @@ function edit_profile($title, $content, $user) {
 	
 }
 
+// Import RSS feed
 function migrate($title, $time, $tags, $content, $url, $user, $source) {
 
 	$post_date = date('Y-m-d-H-i-s', $time);
@@ -267,6 +277,7 @@ function migrate($title, $time, $tags, $content, $url, $user, $source) {
 	
 }
 
+// Fetch RSS feed
 function get_feed($feed_url, $credit, $message=null) {  
     $source = file_get_contents($feed_url);
     $feed = new SimpleXmlElement($source);
@@ -310,6 +321,7 @@ function get_feed($feed_url, $credit, $message=null) {
 	
 }  
 
+// Get recent posts by user
 function get_recent_posts() {
 	if (isset($_SESSION['user'])) {
 		$posts = get_profile($_SESSION['user'], 1, 5);
@@ -340,7 +352,7 @@ function get_recent_posts() {
 	}
 }
 
-// Auto generate menu from static page
+// Get all static pages
 function get_recent_pages() {
 	if (isset($_SESSION['user'])) {
 		$posts = get_static_post(null);
@@ -369,3 +381,53 @@ function get_recent_pages() {
 		}
 	}
 }
+
+// Get all available zip files
+function get_backup_files () {
+	if (isset($_SESSION['user'])) {
+		$files = get_zip_files();
+		if(!empty($files)) {
+			krsort($files);
+			echo '<table class="backup-list">';
+			echo '<tr class="head"><th>Filename</th><th>Date</th><th>Operations</th></tr>';
+			$i = 0; $len = count($files);
+			foreach($files as $file) {
+			
+				if ($i == 0) {
+					$class = 'item first';
+				} 
+				elseif ($i == $len - 1) {
+					$class = 'item last';
+				}
+				else {
+					$class = 'item';
+				}
+				$i++;
+				
+				// Extract the date
+				$arr = explode('_', $file);
+				
+				// Replaced string
+				$replaced = substr($arr[0], 0,strrpos($arr[0], '/')) . '/';
+				
+				$name = str_replace($replaced,'',$file);
+				
+				$date = str_replace('.zip','',$arr[1]);
+				$t = str_replace('-', '', $date);
+				$time = new DateTime($t);
+				$timestamp= $time->format("D, d F Y, H:i:s");
+				
+				$url = site_url() . $file;
+				echo '<tr class="' . $class . '">';
+				echo '<td>' . $name . '</td>';
+				echo '<td>' . $timestamp . '</td>';
+				echo '<td><a target="_blank" href="' . $url . '">Download</a> <form method="GET"><input type="hidden" name="file" value="' . $file . '"/><input type="submit" name="submit" value="Delete"/></form></td>';
+				echo '</tr>';
+			}
+			echo '</table>';
+		}
+		else {
+			echo 'No available backup!';
+		}
+	}
+}

system/admin/views/backup-start.html.php

@@ -0,0 +1,17 @@
+<?php
+
+$timestamp = date('Y-m-d-H-i-s');
+$dir = 'backup';
+
+if(is_dir($dir)) {
+	Zip('content/', 'backup/content_' . $timestamp . '.zip', true);
+}
+else {
+	mkdir($dir, 0777, true);
+	Zip('content/', 'backup/content_' . $timestamp . '.zip', true);
+}
+
+$redirect = site_url() . 'admin/backup';
+header("Location: $redirect");	
+ 
+ ?>

system/admin/views/backup.html.php

@@ -0,0 +1,15 @@
+<?php 
+	if(login()) {
+		if(isset($_GET['file'])) {
+			$file = $_GET['file'];
+
+			if(!empty($file)) {
+				unlink($file);	
+			}
+			
+		}
+	}
+?>
+<a href="<?php echo site_url() ?>admin/backup-start">Create backup</a>
+<h2>Your backups</h2>
+<?php echo get_backup_files() ?>

system/htmly.php

@@ -862,6 +862,41 @@ post('/admin/import', function() {
 	
 });
 
+// Backup page
+get('/admin/backup',function(){
+	if(login()) {
+		config('views.root', 'system/admin/views');
+		render('backup', array(
+			'head_contents' => head_contents('Backup content - ' . blog_title(), blog_description(), site_url()),
+			'bodyclass' => 'backup',
+			'breadcrumb' => '<a href="' . site_url() . '">' .config('breadcrumb.home'). '</a> &#187; Backup'
+		));
+	}
+	else {
+		$login = site_url() . 'login';
+		header("location: $login");
+	}
+	die;
+});
+
+// Create Zip file
+get('/admin/backup-start',function(){
+	if(login()) {
+		config('views.root', 'system/admin/views');
+		render('backup-start', array(
+			'head_contents' => head_contents('Backup content started - ' . blog_title(), blog_description(), site_url()),
+			'bodyclass' => 'startbackup',
+			'breadcrumb' => '<a href="' . site_url() . '">' .config('breadcrumb.home'). '</a> &#187; Backup started'
+		));
+	}
+	else {
+		$login = site_url() . 'login';
+		header("location: $login");
+	}
+	die;
+});
+
+
 // The tag page
 get('/tag/:tag',function($tag){
 

system/includes/functions.php

@@ -81,6 +81,22 @@ function get_author_names(){
 	return $_cache;
 }
 
+// Get backup file. 
+function get_zip_files(){
+
+	static $_cache = array();
+
+	if(empty($_cache)){
+
+		// Get the names of all the
+		// zip files.
+
+		$_cache = glob('backup/*.zip');
+	}
+
+	return $_cache;
+}
+
 // usort function. Sort by filename.
 function sortfile($a, $b) {
 	return $a['filename'] == $b['filename'] ? 0 : ( $a['filename'] < $b['filename'] ) ? 1 : -1;
@@ -967,8 +983,60 @@ EOF;
 // Menu
 function menu(){
 	$menu = config('blog.menu');
+	$req = $_SERVER['REQUEST_URI'];
+	
 	if (!empty($menu)) {
-		return $menu;
+	
+		$links = explode('|', $menu);
+		
+		echo '<ul class="nav">';
+		if($req == site_path() . '/') {
+			echo '<li class="item first active"><a href="' . site_url() . '">' .config('breadcrumb.home'). '</a></li>';
+		}
+		else {
+			echo '<li class="item first"><a href="' . site_url() . '">' .config('breadcrumb.home'). '</a></li>';
+		}
+		
+		$i = 0; 
+		$len = count($links);
+		
+		foreach($links as $link) {
+		
+			if ($i == $len - 1) {
+				$class = 'item last';
+			}
+			else {
+				$class = 'item';
+			}
+			$i++;
+			
+			$anc = explode('->', $link);
+			
+			if(isset($anc[0]) && isset($anc[1])) {
+			
+				if(strpos($link, site_url()) !== false) {
+					$id = substr($link, strrpos($link, '/')+1 );
+					$file = 'content/static/' . $id . '.md';
+					if(file_exists($file)) {
+						if(strpos($req, $id) !== false){
+							echo '<li class="' . $class . ' active"><a href="' . $anc[1] . '">' . $anc[0] . '</a></li>';
+						}
+						else {
+							echo '<li class="' . $class . '"><a href="' . $anc[1] . '">' . $anc[0] . '</a></li>';
+						}
+					}
+					else {
+						echo '<li class="' . $class . '"><a href="' . $anc[1] . '">' . $anc[0] . '</a></li>';
+					}
+				}
+				else {
+					echo '<li class="' . $class . '"><a target="_blank" href="' . $anc[1] . '">' . $anc[0] . '</a></li>';
+				}
+				
+			}
+		}
+		
+		echo '</ul>';
 	}
 	else {
 		get_menu();
@@ -1035,6 +1103,17 @@ function get_menu() {
 		echo '</ul>';
 	
 	}
+	else {
+	
+		echo '<ul class="nav">';
+		if($req == site_path() . '/') {
+			echo '<li class="item first active"><a href="' . site_url() . '">' .config('breadcrumb.home'). '</a></li>';
+		}
+		else {
+			echo '<li class="item first"><a href="' . site_url() . '">' .config('breadcrumb.home'). '</a></li>';
+		}
+	
+	}
 	
 }
 
@@ -1369,6 +1448,55 @@ function generate_json($posts){
 	return json_encode($posts);
 }
 
+
+// Create Zip files
+function Zip($source, $destination, $include_dir = false)
+{
+
+    if (!extension_loaded('zip') || !file_exists($source)) {
+        return false;
+    }
+
+    if (file_exists($destination)) {
+        unlink ($destination);
+    }
+
+    $zip = new ZipArchive();
+    if (!$zip->open($destination, ZIPARCHIVE::CREATE)) {
+        return false;
+    }
+
+    if (is_dir($source) === true)
+    {
+
+        $files = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($source), RecursiveIteratorIterator::SELF_FIRST);
+
+        foreach ($files as $file)
+        {
+            $file = str_replace('\\', '/', $file);
+
+            // Ignore "." and ".." folders
+            if( in_array(substr($file, strrpos($file, '/')+1), array('.', '..')) )
+                continue;
+
+            if (is_dir($file) === true)
+            {
+                $zip->addEmptyDir(str_replace($source . '/', '', $file . '/'));
+            }
+            else if (is_file($file) === true)
+            {
+                $zip->addFromString(str_replace($source . '/', '', $file), file_get_contents($file));
+            }
+        }
+    }
+    else if (is_file($source) === true)
+    {
+        $zip->addFromString(basename($source), file_get_contents($source));
+    }
+
+    return $zip->close();
+}
+
 // TRUE if the current page is the front page.
 function is_front() {
 	$req = $_SERVER['REQUEST_URI'];
@@ -1472,6 +1600,7 @@ EOF;
 	echo '<li><a href="'.$base.'add/page">Add page</a></li>';
 	echo '<li><a href="'.$base.'edit/profile">Edit profile</a></li>';
 	echo '<li><a href="'.$base.'admin/import">Import</a></li>';
+	echo '<li><a href="'.$base.'admin/backup">Backup</a></li>';
 	echo '<li><a href="'.$base.'logout">Logout</a></li>';
 		
 	echo '</ul></div>';