/**
* 静态方法, 单例统一访问入口
* @return object 返回对象的唯一实例
*/
public static function getInstance()
{
if (is_null(self::$_instance) || !isset(self::$_instance)) {
self::$_instance = new self();
}
return self::$_instance;
}
/**
*根据文件的Hash值下载内容
* @param string $signature 文件hash值
* @throws 404错误
*/
public function downloadTxt($signature)
{
$version = MiniVersion::getInstance()->getBySignature($signature);
if (!empty($version)) {
//根据文件内容输出文件内容
$meta = MiniVersionMeta::getInstance()->getMeta($version["id"], "doc_id");
if (!empty($meta)) {
$url = PluginMiniDocNode::getInstance()->getDownloadUrl($meta["meta_value"], $version, "txt");
if (!empty($url)) {
header("HTTP/1.1 " . MConst::HTTP_CODE_301 . " Moved Permanently");
header("Location: " . $url);
exit;
}
} else {
//文本类文件直接下载
MiniFile::getInstance()->getContentBySignature($signature, $signature, $version["mime_type"]);
}
}
throw new MFileopsException(Yii::t('api', 'File Not Found'), 404);
}
/**
* 把文档进行转换
* @param array $version
* @param string $mimeType 如mineType为空，则使用version.mime_type
*/
private function pushFileConvert($version, $mimeType)
{
if (empty($mimeType)) {
$mimeType = $version["mime_type"];
}
$miniHost = PluginMiniDocOption::getInstance()->getMiniyunHost();
$siteId = MiniSiteUtils::getSiteID();
$signature = $version["file_signature"];
$node = PluginMiniDocNode::getInstance()->getConvertNode($signature);
if (!empty($node)) {
$url = $node["host"] . '/api.php?route=file/convert';
$downloadUrl = $miniHost . "api.php?route=module/miniDoc/download&signature=" . $signature;
$callbackUrl = $miniHost . "api.php?route=module/miniDoc/report&node_id=" . $node["id"] . "&signature=" . $signature;
$data = array('signature' => $signature, 'site_id' => $siteId, 'mime_type' => $mimeType, 'download_url' => $downloadUrl, "callback_url" => $callbackUrl);
$http = new HttpClient();
$http->post($url, $data);
$result = $http->get_body();
$result = json_decode($result, true);
if ($result['status'] == 1) {
$this->updateDocConvertStatus($node["id"], $version["file_signature"], 1);
}
}
}
/**
* 定时任务入口
* 场景1：检查各个迷你云节点状态
* 使用方式：每隔15秒执行一次
*/
public function actionCheckNodeStatus()
{
PluginMiniDocNode::getInstance()->checkNodesStatus();
}
/**
* 修改迷你文档节点状态
* @param string $name 节点名称
* @param string $status 节点状态
* @throws MiniException
*/
public function modifyNodeStatus($name, $status)
{
$node = PluginMiniDocNode::getInstance()->getNodeByName($name);
if (empty($node)) {
throw new MiniException(100203);
}
if ($status == 1) {
//检查服务器状态，看看是否可以连接迷你文档服务器
$nodeStatus = PluginMiniDocNode::getInstance()->checkNodeStatus($node["host"]);
if ($nodeStatus == -1) {
throw new MiniException(100204);
}
}
return PluginMiniDocNode::getInstance()->modifyNodeStatus($name, $status);
}
