Current File : //data/www_bck/varak.net_bck/ampache.varak.net/lib/class/autoupdate.class.php
<?php
/* vim:set softtabstop=4 shiftwidth=4 expandtab: */
/**
*
* LICENSE: GNU General Public License, version 2 (GPLv2)
* Copyright 2001 - 2014 Ampache.org
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License v2
* as published by the Free Software Foundation.
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
/**
* AutoUpdate Class
*
* This class handles autoupdate check from Github.
*/
class AutoUpdate
{
/*
* Constructor
*
* This should never be called
*/
private function __construct()
{
// static class
}
protected static function is_develop()
{
$version = AmpConfig::get('version');
$vspart = explode('-', $version);
return ($vspart[count($vspart) - 1] == 'develop');
}
protected static function is_git_repository()
{
return is_dir(AmpConfig::get('prefix') . '/.git');
}
protected static function is_branch_develop_exists()
{
return is_readable(AmpConfig::get('prefix') . '/.git/refs/heads/develop');
}
public static function github_request($action)
{
try {
$url = "https://api.github.com/repos/ampache/ampache" . $action;
$request = Requests::get($url);
// Not connected / API rate limit exceeded: just ignore, it will pass next time
if ($request->status_code != 200) {
debug_event('autoupdate', 'Github API request ' . $url . ' failed with http code ' . $request->status_code, '1');
return;
}
return json_decode($request->body);
} catch (Exception $e) {
debug_event('autoupdate', 'Request error: ' . $e->getMessage(), '1');
return "";
}
}
protected static function lastcheck_expired()
{
$lastcheck = AmpConfig::get('autoupdate_lastcheck');
if (!$lastcheck) {
User::rebuild_all_preferences();
Preference::update('autoupdate_lastcheck', $GLOBALS['user']->id, '1');
AmpConfig::set('autoupdate_lastcheck', '1', true);
}
return ((time() - (3600 * 3)) > $lastcheck);
}
public static function get_latest_version($force = false)
{
$lastversion = '';
// Forced or last check expired, check latest version from Github
if ($force || (self::lastcheck_expired() && AmpConfig::get('autoupdate'))) {
// Development version, get latest commit on develop branch
if (self::is_develop()) {
$commits = self::github_request('/commits/develop');
if (!empty($commits)) {
$lastversion = $commits->sha;
Preference::update('autoupdate_lastversion', $GLOBALS['user']->id, $lastversion);
AmpConfig::set('autoupdate_lastversion', $lastversion, true);
$time = time();
Preference::update('autoupdate_lastcheck', $GLOBALS['user']->id, $time);
AmpConfig::set('autoupdate_lastcheck', $time, true);
$available = self::is_update_available(true);
Preference::update('autoupdate_lastversion_new', $GLOBALS['user']->id, $available);
AmpConfig::set('autoupdate_lastversion_new', $available, true);
}
}
// Otherwise it is stable version, get latest tag
else {
$tags = self::github_request('/tags');
if (!empty($tags)) {
$lastversion = $tags[0]->name;
Preference::update('autoupdate_lastversion', $GLOBALS['user']->id, $lastversion);
AmpConfig::set('autoupdate_lastversion', $lastversion, true);
$time = time();
Preference::update('autoupdate_lastcheck', $GLOBALS['user']->id, $time);
AmpConfig::set('autoupdate_lastcheck', $time, true);
$available = self::is_update_available(true);
Preference::update('autoupdate_lastversion_new', $GLOBALS['user']->id, $available);
AmpConfig::set('autoupdate_lastversion_new', $available, true);
}
}
}
// Otherwise retrieve the cached version number
else {
$lastversion = AmpConfig::get('autoupdate_lastversion');
}
return $lastversion;
}
public static function get_current_version()
{
if (self::is_develop()) {
return self::get_current_commit();
} else {
return AmpConfig::get('version');
}
}
public static function get_current_commit()
{
if (self::is_branch_develop_exists()) {
return trim(file_get_contents(AmpConfig::get('prefix') . '/.git/refs/heads/develop'));
}
return false;
}
public static function is_update_available($force = false)
{
if (!$force && (!self::lastcheck_expired() || !AmpConfig::get('autoupdate'))) {
return AmpConfig::get('autoupdate_lastversion_new');
}
debug_event('autoupdate', 'Checking latest version online...', '5');
$available = false;
$current = self::get_current_version();
$latest = self::get_latest_version();
if ($current != $latest && !empty($current)) {
if (self::is_develop()) {
$ccommit = self::github_request('/commits/' . $current);
$lcommit = self::github_request('/commits/' . $latest);
if (!empty($ccommit) && !empty($lcommit)) {
// Comparison based on commit date
$ctime = strtotime($ccommit->commit->author->date);
$ltime = strtotime($lcommit->commit->author->date);
$available = ($ctime < $ltime);
}
} else {
$cpart = explode('-', $current);
$lpart = explode('-', $latest);
$available = (version_compare($cpart[0], $lpart[0]) < 0);
}
}
return $available;
}
public static function show_new_version()
{
echo '<div>';
echo '<font color="#ff0000">' . T_('Update available') . '</font>';
echo ' (' . self::get_latest_version() . ').<br />';
echo T_('See') . ' <a href="https://github.com/ampache/ampache/' . (self::is_develop() ? 'compare/' . self::get_current_version() . '...' . self::get_latest_version() : 'blob/master/docs/CHANGELOG.md') . '" target="_blank">' . T_('changes') . '</a> ';
echo T_('or') . ' <a href="https://github.com/ampache/ampache/archive/' . (self::is_develop() ? 'develop.zip' : self::get_latest_version() . '.zip') . '" target="_blank"><b>' . T_('download') . '</b></a>.';
echo '</div>';
}
}
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