current_version = $current_version;
$this->update_sources = require BASE_DIR."/config/update.php";
$source = Option::get('update_source');
if (!isset($this->update_sources[$source])) {
Option::set('update_source', config('options.update_source'));
}
$this->current_source = $this->update_sources[Option::get('update_source')];
}
/**
* Get update info from selected json source
*
* @return array Decoded json
*/
public function getUpdateInfo()
{
$ch = curl_init();
// add timestamp to control cdn cache
$url = $this->current_source['update_url']."?v=".substr(time(), 0, -3);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
// quick fix for accessing https resources
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
$result = curl_exec($ch);
curl_close($ch);
$this->update_info = json_decode($result, true);
return $this->update_info;
}
/**
* Check for updates
*
* @return void
*/
public function checkUpdate()
{
$info = $this->getUpdateInfo();
$this->latest_version = $info['latest_version'];
$this->update_time = date('Y-m-d H:i:s', $info['update_time']);
}
/**
* Download update files
*
* @param bool $silent Don't print messages
* @return void
*/
public function downloadUpdate($silent = true)
{
$release_url = $this->update_info['releases'][$this->latest_version]['release_url'];
if (!$silent)
echo "正在下载更新包：$release_url
";
// I don't know why curl can't get full file content here..
$file = file_get_contents($release_url);
if (!$silent)
echo "下载完成。
";
$update_cache = BASE_DIR."/setup/update_cache/";
if (!is_dir($update_cache)) {
if (false === mkdir($update_cache)) {
exit('创建下载缓存文件夹失败，请检查目录权限。
');
}
}
$zip_path = $update_cache."update_".time().".zip";
if (Storage::put($zip_path, $file) === false) {
Storage::removeDir(BASE_DIR.'/setup/update_cache/');
return false;
}
return $zip_path;
}
/**
* Check if a new version is available
*
* @return bool
*/
public function newVersionAvailable()
{
$this->checkUpdate();
return $this->compareVersion($this->latest_version, $this->current_version);
}
public function getUpdateSources()
{
return $this->update_sources;
}
/**
* Compare version string
*
* @param string $v1
* @param string $v2
* @return boolean
*/
private function compareVersion($v1, $v2)
{
if (version_compare($v1, $v2) > 0) {
// v1 > v2
return true;
} else {
// v1 < v2 || v1 = v2
return false;
}
}
}