Merge pull request #59 from Kanti/autoupdate

Auto-update by @Kanti.

cache/installedVersion.json

@@ -0,0 +1,4 @@
+{
+    "id": 397789,
+    "tag_name": "v2.1"
+}

system/admin/views/updated-to.html.php

@@ -0,0 +1,5 @@
+<?php
+
+echo $updater->printOne();
+
+?>

system/htmly.php

@@ -6,6 +6,7 @@ date_default_timezone_set('Asia/Jakarta');
 // Explicitly including the dispatch framework,
 // and our functions.php file
 require 'system/includes/dispatch.php';
+require 'system/includes/updater.php';
 require 'system/includes/functions.php';
 require 'system/admin/admin.php';
 require 'system/includes/session.php';
@@ -1109,6 +1110,26 @@ get('/feed/opml',function(){
 	
 });
 
+get('/admin/update/now/:csrf',function($CSRF){
+
+	$proper = is_csrf_proper($CSRF);
+	$updater = new Updater;
+	if( login() && $proper && $updater->updateAble())
+	{
+		$updater->update();
+		config('views.root', 'system/admin/views');
+		render('updated-to', array(
+			'head_contents' => head_contents('Updated - ' . blog_title(), blog_description(), site_url()),
+			'updater' => $updater,
+		));
+	}
+	else
+	{
+		$login = site_url() . 'login';
+		header("location: $login");
+	}
+});
+
 // If we get here, it means that
 // nothing has been matched above
 

system/includes/dispatch.php

@@ -272,53 +272,51 @@ function content($value = null) {
 }
 
 function render($view, $locals = null, $layout = null) {
+	$login = login();
+	if(!$login) {
+		$c = str_replace('/', '#', str_replace('?', '~', $_SERVER['REQUEST_URI']));
+		$dir = 'cache/page';
+		$cachefile = $dir. '/' . $c . '.cache';
+		if(is_dir($dir) === false) {
+			mkdir($dir, 0777, true);
+		}
+	}
 
-  if(!login()) {
-    $c = str_replace('/', '#', str_replace('?', '~', $_SERVER['REQUEST_URI']));
-    $dir = 'cache/page';
-    $cachefile = $dir. '/' . $c . '.cache';
-    if(is_dir($dir) === false) {
-      mkdir($dir, 0777, true);
-    }
-  }
+	if (is_array($locals) && count($locals)) {
+		extract($locals, EXTR_SKIP);
+	}
 
-  if (is_array($locals) && count($locals)) {
-    extract($locals, EXTR_SKIP);
-  }
+	if (($view_root = config('views.root')) == null)
+		error(500, "[views.root] is not set");
 
-  if (($view_root = config('views.root')) == null)
-    error(500, "[views.root] is not set");
+	ob_start();
+	include "{$view_root}/{$view}.html.php";
+	content(trim(ob_get_clean()));
 
-  ob_start();
-  include "{$view_root}/{$view}.html.php";
-  content(trim(ob_get_clean()));
+	if ($layout !== false) {
 
-  if ($layout !== false) {
+		if ($layout == null) {
+			$layout = config('views.layout');
+			$layout = ($layout == null) ? 'layout' : $layout;
+		}
 
-    if ($layout == null) {
-      $layout = config('views.layout');
-      $layout = ($layout == null) ? 'layout' : $layout;
-    }
+		$layout = "{$view_root}/{$layout}.html.php";
 
-    $layout = "{$view_root}/{$layout}.html.php";
+		header('Content-type: text/html; charset=utf-8');
 
-    header('Content-type: text/html; charset=utf-8');
+		ob_start();
+		require $layout;
 
-    ob_start();
-    require $layout;
-	
-    if(!login()) {
-      if (!file_exists($cachefile)) {
-        file_put_contents($cachefile, ob_get_contents());
-      }
+		if(!$login) {
+			if (!file_exists($cachefile)) {
+				file_put_contents($cachefile, ob_get_contents());
+		}
 	}
 
-    echo trim(ob_get_clean());
-	  
-  } else {
-    echo content();
-  }
-
+	echo trim(ob_get_clean());
+	} else {
+		echo content();
+	}
 }
 
 function json($obj, $code = 200) {

system/includes/functions.php

@@ -1673,6 +1673,10 @@ function toolbar() {
 	$role = user('role', $user);
 	$base = site_url();
 	
+	$CSRF = get_csrf();
+	
+	$updater = new Updater;
+	
 	echo <<<EOF
 	<link href="{$base}themes/default/css/toolbar.css" rel="stylesheet" />
 EOF;
@@ -1686,6 +1690,10 @@ EOF;
 	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.'admin/clear-cache">Clear cache</a></li>';
+	if( $updater->updateAble())
+	{
+		echo '<li><a href="'.$base.'admin/update/now/' . $CSRF . '">Update to ' . $updater->getName() . '</a></li>';
+	}
 	echo '<li><a href="'.$base.'logout">Logout</a></li>';
 		
 	echo '</ul></div>';

system/includes/updater.php

@@ -0,0 +1,175 @@
+<?php
+
+class CacheOneFile
+{
+	protected $fileName = "";
+	protected $holdTime = 43200;//12h
+	
+	public function __construct($fileName , $holdTime = 43200)
+	{
+		$this->fileName = $fileName;
+		$this->holdTime = $holdTime;
+	}
+
+	public function is()
+	{
+		if(! file_exists($this->fileName))
+			return false;
+		if(filemtime($this->fileName) < ( time() - $this->holdTime ) )
+		{
+			unlink($this->fileName);
+			return false;
+		}
+		return true;
+	}
+	public function get()
+	{
+		return file_get_contents($this->fileName);
+	}
+	public function set($content)
+	{
+		file_put_contents($this->fileName,$content);
+	}
+}
+
+class Updater
+{
+	protected $cachedInfo = "cache/downloadInfo.json";
+	protected $versionFile = "cache/installedVersion.json";
+	protected $zipFile = "cache/tmpZipFile.zip";
+	
+	protected $infos = array();
+	
+	public function __construct()
+	{
+		if(! file_exists("cache/"))
+		{
+			mkdir("cache/");
+		}
+		$this->cachedInfo = new CacheOneFile($this->cachedInfo);
+		$this->infos = $this->getInfos();
+	}
+	
+	protected function getInfos()
+	{
+		$path = "https://api.github.com/repos/danpros/htmly/releases";
+		if($this->cachedInfo->is())
+		{
+			$fileContent = $this->cachedInfo->get();
+		}
+		else
+		{
+			if(!in_array('https', stream_get_wrappers()))
+			{
+				return array();
+			}
+			$fileContent = @file_get_contents($path,false, stream_context_create(
+				array(
+					'http' => array(
+						'header'=>"User-Agent: Awesome-Update-My-Self\r\n"
+					)
+				)
+			));
+			if($fileContent === false)
+			{
+				return array();
+			}
+			$json = json_decode($fileContent,true);
+			$fileContent = json_encode($json, JSON_PRETTY_PRINT);
+			$this->cachedInfo->set($fileContent);
+			return $json;
+		}
+		return json_decode($fileContent,true);
+	}
+
+	public function updateAble()
+	{
+		if(!in_array('https', stream_get_wrappers()))
+			return false;
+		if(empty($this->infos))
+			return false;
+
+		if(file_exists($this->versionFile))
+		{
+			$fileContent = file_get_contents($this->versionFile);
+			$current = json_decode($fileContent,true);
+		
+			if(isset($current['id']) && $current['id'] == $this->infos[0]['id'])
+				return false;
+			if(isset($current['tag_name']) && $current['tag_name'] == $this->infos[0]['tag_name'])
+				return false;
+		}
+		return true;
+	}
+	
+	public function update()
+	{
+		if($this->updateAble())
+		{
+			if($this->download("https://github.com/danpros/htmly/archive/" . $this->infos[0]['tag_name'] . ".zip"))
+			{
+				if($this->unZip())
+				{
+					unlink($this->zipFile);
+					file_put_contents($this->versionFile, json_encode(array(
+						"id" => $this->infos[0]['id'],
+						"tag_name" => $this->infos[0]['tag_name']
+					), JSON_PRETTY_PRINT));
+					return true;
+				}
+			}
+		}
+		return false;
+	}	
+	protected function download($url)
+	{
+		$file = @fopen($url, 'r');
+		if($file == false)
+			return false;
+		file_put_contents($this->zipFile, $file);
+		return true;
+	}
+	protected function unZip()
+	{
+		$path = dirname($_SERVER['SCRIPT_FILENAME']) . "/" . $this->zipFile;
+		
+		$zip = new ZipArchive;
+		if ($zip->open($path) === true) {
+			$cutLength = strlen($zip->getNameIndex(0));
+			for($i = 1; $i < $zip->numFiles; $i++) {//iterate throw the Zip
+				$fileName = $zip->getNameIndex($i);
+				$stat = $zip->statIndex($i);
+				if($stat["crc"] == 0)
+				{
+					$dirName = substr($fileName,$cutLength);
+					if(! file_exists($dirName))
+					{
+						mkdir($dirName);
+					}
+				}
+				else{
+					copy("zip://".$path."#".$fileName, substr($fileName,$cutLength));
+				}
+			}                   
+			$zip->close();
+			return true;
+		}
+		else{
+			return false;
+		}
+	}
+	
+	public function printOne()
+	{
+		$releases = $this->infos;
+		$string = "<h3>Updated to<h3>";
+		$string .= "<h2>[" . $releases[0]['tag_name'] . "] " . $releases[0]['name'] . "</h2>\n";
+		$string .= "<p>" . $releases[0]['body'] . "</p>\n";
+		return $string;
+	}
+	
+	public function getName()
+	{
+		return $this->infos[0]['tag_name'];
+	}
+}