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PHPMC7/include/core/PHPMC/Update.php

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<?php
class Update {
public function checkUpdate() {
$data = json_decode(PHPMC::Http()->Request("https://www.phpmc.cn/update.php?version=" . PHPMC_VERSION), true);
if(!$data) {
return false;
} else {
if($data['version'] == PHPMC_VERSION) {
return false;
} else {
return true;
}
}
}
public function getUpdateInfo() {
$data = json_decode(PHPMC::Http()->Request("https://www.phpmc.cn/update.php?version=" . PHPMC_VERSION), true);
if(!$data) {
return false;
} else {
if($data['version'] == PHPMC_VERSION) {
return false;
} else {
return $data;
}
}
}
public function updateExecute() {
$data = $this->getUpdateInfo();
if(!$data) {
PHPMC::Error()->Println("无法更新,请检查网络是否正常。");
} elseif(!$this->checkPermission("./")) {
PHPMC::Error()->Println("网站目录不可写,请修改权限或手动更新。");
} elseif(!class_exists("ZipArchive")) {
PHPMC::Error()->Println("未检测到 ZipArchive 组件,请先修改 php.ini 启用 php_zip 扩展。");
} else {
$file = @PHPMC::Http()->Request($data['download']);
if(strlen($file) == 0) {
PHPMC::Error()->Println("下载的文件长度为 0请检查网络是否正常。");
} elseif(file_put_contents('update-temp.zip', $file) === false) {
PHPMC::Error()->Println("写入文件时发生错误,请检查目录是否有读写权限。");
} elseif(md5_file('update-temp.zip') !== $data['filemd5']) {
@unlink('update-temp.zip');
PHPMC::Error()->Println("文件 MD5 验证失败,请尝试重新更新。");
} else {
if($this->unzipUpdateFiles('update-temp.zip', './')) {
@unlink('update-temp.zip');
PHPMC::Error()->Println("PHPMC 更新成功,请刷新网页。");
} else {
@unlink('update-temp.zip');
PHPMC::Error()->Println("解压文件时发生错误,无法打开文件或解压失败。");
}
}
}
}
public function checkPermission($file) {
if(is_dir($file)){
$dir = $file;
if($fp = @fopen("{$dir}/.writetest", 'w')) {
@fclose($fp);
@unlink("{$dir}/.writetest");
return true;
} else {
return false;
}
} else {
if($fp = @fopen($file, 'a+')) {
@fclose($fp);
return true;
} else {
return false;
}
}
}
public function unzipUpdateFiles($fileName, $unzipPath) {
$zip = new ZipArchive();
$open = $zip->open($fileName);
if($open === true) {
return $zip->extractTo($unzipPath);
}
return false;
}
}