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