Your IP : 216.73.216.43
<?php
/**
* Copyright (C) 2015 freakedout (www.freakedout.de)
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* This file is based on AdminTools' update.php from Nicholas K. Dionysopoulos
* @copyright Copyright (c)2010 Nicholas K. Dionysopoulos
**/
// no direct access
defined('_JEXEC') or die('Restricted Access');
class joomailermailchimpintegrationModelUpdate extends jmModel {
private $cacheGroup = 'joomlamailerUpdate';
private $remoteVersionCache;
private $updateUrl = 'http://www.joomlamailer.com/versions/joomlamailer.ini';
public function __construct($config = array()) {
parent::__construct($config);
$cacheOptions = array();
$cacheOptions['caching'] = true;
$cacheOptions['lifetime'] = (60 * 24);
$cacheOptions['cachebase'] = JPATH_ADMINISTRATOR . '/cache';
$cacheOptions['defaultgroup'] = $this->cacheGroup;
if (!defined('JOOMLAMAILER_VERSION') || !defined('JOOMLAMAILER_DATE')) {
$cacheID = 'jmVersion';
if (!$this->cache($this->cacheGroup)->get($cacheID, $this->cacheGroup)) {
$db = JFactory::getDbo();
$query = $db->getQuery(true)
->select($db->qn('manifest_cache'))
->from('#__extensions')
->where($db->qn('type') . ' = ' . $db->q('component'))
->where($db->qn('element') . ' = ' . $db->q('com_joomailermailchimpintegration'));
$db->setQuery($query);
$manifest = $db->loadResult();
$this->cache($this->cacheGroup)->store($manifest, $cacheID, $this->cacheGroup);
}
$manifest = json_decode($this->cache($this->cacheGroup)->get($cacheID, $this->cacheGroup));
if (!defined('JOOMLAMAILER_VERSION')) define('JOOMLAMAILER_VERSION', $manifest->version);
if (!defined('JOOMLAMAILER_DATE')) define('JOOMLAMAILER_DATE', $manifest->creationDate);
}
$this->remoteVersionCache = JPATH_ADMINISTRATOR . '/cache/joomlamailerUpdate/remote_version.ini';
}
/**
* Does the server support URL fopen() wrappers?
* @return bool
*/
private function hasURLfopen() {
// If we are not allowed to use ini_get, we assume that URL fopen is disabled.
if (!function_exists('ini_get')) {
return false;
}
if (!ini_get('allow_url_fopen')) {
return false;
}
return true;
}
/**
* Does the server support the cURL extension?
* @return bool
*/
private function hascURL() {
if (!function_exists('curl_exec')) {
return false;
}
return true;
}
/**
* Returns the date and time when the last update check was made.
* @return JDate
*/
private function lastUpdateCheck() {
jimport('joomla.filesystem.file');
if (JFile::exists($this->remoteVersionCache)) {
$filedate = filemtime($this->remoteVersionCache);
} else {
$filedate = 1;
}
return $filedate;
}
/**
* Gets an object with the latest version information, taken from the update.ini data
* @return JObject|bool An object holding the data, or false on failure
*/
private function getLatestVersion($force = false) {
$curdate = time();
$lastdate = $this->lastUpdateCheck();
$difference = ($curdate - $lastdate) / 3600;
$inidata = $this->getUpdateINIcached();
$cached = false;
// Make sure we ask the server at most every 24 hrs (unless $force is true)
if (($difference < 24) && ($inidata) && (!$force)) {
$cached = true;
// Cached INI data is valid
}
// Prefer to use cURL if it exists and we don't have cached data
else if ($this->hascURL()) {
$inidata = $this->getUpdateINIcURL();
}
// If cURL doesn't exist, or if it returned an error, try URL fopen() wrappers
else if ($this->hasURLfopen()) {
$inidata = $this->getUpdateINIfopen();
}
// Make sure we do have INI data and not junk...
if ($inidata != false) {
if (strpos($inidata, '; Live Update provision file') !== 0) {
$inidata = false;
}
}
// If we have a valid update.ini, update the cache and read the version information
if ($inidata != false) {
if (!$cached) {
$this->setUpdateINIcached($inidata);
}
require_once(JPATH_COMPONENT_ADMINISTRATOR . '/helpers/ini.php');
$parsed = joomailermailchimpintegrationHelperINI::parse_ini_file($inidata, false, true);
// Determine status by parsing the version number
if (preg_match('#^[0-9\.]*a[0-9\.]*#', $parsed['version']) == 1) {
$status = 'alpha';
} else if (preg_match('#^[0-9\.]*b[0-9\.]*#', $parsed['version']) == 1) {
$status = 'beta';
} else if (preg_match('#^[0-9\.]*$#', $parsed['version']) == 1) {
$status = 'stable';
} else {
$status = 'svn';
}
$ret = new JObject();
$ret->version = $parsed['version'];
$ret->status = $status;
$ret->reldate = $parsed['date'];
$ret->url = $parsed['link'];
$ret->infoUrl = $parsed['infourl'];
return $ret;
}
return false;
}
/**
* Retrieves the update.ini data
* @return string|bool The update.ini contents, or FALSE on failure
*/
private function getUpdateINIfopen() {
return @file_get_contents($this->updateUrl);
}
/**
* Retrieves the update.ini data using cURL extention calls
* @return string|bool The update.ini contents, or FALSE on failure
*/
private function getUpdateINIcURL() {
$process = curl_init($this->updateUrl);
curl_setopt($process, CURLOPT_HEADER, 0);
// Pretend we are IE7, so that webservers play nice with us
curl_setopt($process, CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.0.3705; .NET CLR 1.1.4322; Media Center PC 4.0)');
curl_setopt($process,CURLOPT_ENCODING , 'gzip');
curl_setopt($process, CURLOPT_TIMEOUT, 5);
curl_setopt($process, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($process, CURLOPT_SSL_VERIFYPEER, false);
// The @ sign allows the next line to fail if open_basedir is set or if safe mode is enabled
@curl_setopt($process, CURLOPT_FOLLOWLOCATION, 1);
@curl_setopt($process, CURLOPT_MAXREDIRS, 20);
$inidata = curl_exec($process);
curl_close($process);
return $inidata;
}
private function getUpdateINIcached() {
$inidata = false;
jimport('joomla.filesystem.file');
if (JFile::exists($this->remoteVersionCache)) {
$inidata = JFile::read($this->remoteVersionCache);
}
return $inidata;
}
/**
* Caches the update.ini contents to database
* @param $inidata string The update.ini data
*/
private function setUpdateINIcached($inidata) {
jimport('joomla.filesystem.file');
JFile::write($this->remoteVersionCache, $inidata);
}
/**
* Is the Live Update supported on this server?
* @return bool
*/
public function isLiveUpdateSupported() {
return ($this->hasURLfopen() || $this->hascURL());
}
/**
* Searches for updates and returns an object containing update information
* @return JObject An object with members: supported, update_available,
* current_version, current_date, latest_version, latest_date,
* package_url
*/
public function getUpdates($force = false) {
jimport('joomla.utilities.date');
$ret = new JObject();
if (!$this->isLiveUpdateSupported()) {
$ret->supported = false;
$ret->update_available = false;
return $ret;
} else {
$ret->supported = true;
$update = $this->getLatestVersion($force);
// FIX 2.3: Fail gracefully if the update data couldn't be retrieved
if (!is_object($update) || $update === false) {
$ret->supported = false;
$ret->update_available = false;
return $ret;
}
jimport('joomla.utilities.date');
$relobject = new JDate($update->reldate);
$ret->latest_date = $relobject->format('Y-m-d');
if (preg_match('#^[0-9\.]*a[0-9\.]*#', JOOMLAMAILER_VERSION) == 1) {
$status = 'alpha';
} else if (preg_match('#^[0-9\.]*b[0-9\.]*#', JOOMLAMAILER_VERSION) == 1) {
$status = 'beta';
} else if (preg_match('#^[0-9\.]*$#', JOOMLAMAILER_VERSION) == 1) {
$status = 'stable';
} else {
$status = 'svn';
}
$ret->update_available = version_compare(JOOMLAMAILER_VERSION, $update->version, '<');
$ret->current_version = JOOMLAMAILER_VERSION;
$ret->current_date = JOOMLAMAILER_DATE;
$ret->current_status = $status;
$ret->latest_version = $update->version;
$ret->status = $update->status;
$ret->packageUrl = htmlentities($update->url);
$ret->packageUrlShort = $this->truncateLongString($update->url);
$ret->infoUrl = htmlentities($update->infoUrl);
$ret->infoUrlShort = $this->truncateLongString($update->infoUrl);
return $ret;
}
}
private function truncateLongString($string) {
$string = htmlentities($string);
if (strlen($string) > 80) {
$string = substr($string, 0, 28) . '...' . substr($string, -49);
}
return $string;
}
public function downloadPackage($url, $target) {
jimport('joomla.filesystem.file');
if (JFile::exists($target)) {
JFile::delete($target);
}
if (file_exists($target)) {
@unlink($target);
}
// ii. Moment of truth: try to open write-only
$fp = @fopen($target, 'wb');
if ($fp === false) {
return false;
}
$use_fopen = false;
if (function_exists('curl_exec')) {
// By default, try using cURL, first fetching the headers
$process = curl_init($url);
curl_setopt($process, CURLOPT_AUTOREFERER, true);
curl_setopt($process, CURLOPT_FAILONERROR, true);
@curl_setopt($process, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($process, CURLOPT_HEADER, false);
curl_setopt($process, CURLOPT_RETURNTRANSFER, true);
curl_setopt($process, CURLOPT_SSL_VERIFYPEER, 0);
curl_setopt($process, CURLOPT_CONNECTTIMEOUT, 10);
curl_setopt($process, CURLOPT_TIMEOUT, 30);
@curl_setopt($process, CURLOPT_MAXREDIRS, 20);
// Pretend we are IE7, so that webservers play nice with us
curl_setopt($process, CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.0.3705; .NET CLR 1.1.4322; Media Center PC 4.0)');
$result = curl_exec($process);
curl_close($process);
if ($result !== false) {
JFile::write($target, $result);
}
clearstatcache();
if (filesize($target) == 0) {
// Sometimes cURL silently fails. Bad boy. Bad, bad boy!
$use_fopen = true;
}
} else {
$use_fopen = true;
}
if ($use_fopen) {
// Track errors
ini_set('track_errors',true);
// Open the URL for reading
if (function_exists('stream_context_create')) {
// PHP 5+ way (best)
$httpopts = Array('user_agent'=>'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.0.3705; .NET CLR 1.1.4322; Media Center PC 4.0)');
$context = stream_context_create(array('http' => $httpopts));
$ih = @fopen($url, 'r', false, $context);
} else {
// PHP 4 way (fallback)
ini_set('user_agent', 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.0.3705; .NET CLR 1.1.4322; Media Center PC 4.0)');
$ih = @fopen($url, 'r');
}
$result = false;
// If the fopen() fails, we fail.
if ($ih !== false) {
$fp = @fopen($target, 'wb');
// Download
$bytes = 0;
$result = true;
while (!feof($ih) && $result) {
$contents = fread($ih, 4096);
if ($contents == false) {
@fclose($ih);
$this->app->enqueueMessage("Downloading {$url} failed after {$bytes} bytes", 'error');
$result = false;
} else {
$bytes += strlen($contents);
fwrite($fp, $contents);
}
}
// Close the handlers
@fclose($ih);
@fclose($fp);
}
}
// In case something went foul, let's try to make things right
if (function_exists('curl_exec') && $result === false) {
// I will try to download to memory and write to disk using JFile::write().
// Note: when doing a full reinstall this will most likely cause a memory outage :p
// By default, try using cURL
$process = curl_init($url);
curl_setopt($process, CURLOPT_AUTOREFERER, true);
curl_setopt($process, CURLOPT_FAILONERROR, true);
@curl_setopt($process, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($process, CURLOPT_HEADER, false);
curl_setopt($process, CURLOPT_RETURNTRANSFER, true);
curl_setopt($process, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($process, CURLOPT_CONNECTTIMEOUT, 10);
curl_setopt($process, CURLOPT_TIMEOUT, 30);
@curl_setopt($process, CURLOPT_MAXREDIRS, 20);
// Pretend we are IE7, so that webservers play nice with us
curl_setopt($process, CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR 1.0.3705; .NET CLR 1.1.4322; Media Center PC 4.0)');
$result = curl_exec($process);
curl_close($process);
if ($result !== false) {
$result = JFile::write($target, $result);
}
}
// If the process failed, we fail. Simple, huh?
if ($result === false) {
return false;
}
// If the process succeedeed:
// i. Fix the permissions to 0644
@chmod($target, 0644);
// ii. Return the base name
return basename($target);
}
}