/**
* 控制器执行主逻辑函数
*
* @return mixed $value 返回最终需要执行完的结果
*/
public function invoke($uri = null)
{
// 调用父类初始化函数，注册自定义的异常和错误处理逻辑
parent::init();
$params = $_REQUEST;
// 检查参数
if (isset($params) === false || $params == null) {
throw new Exception(Yii::t('api', 'Invalid parameters'));
}
// 文件大小格式化参数
$locale = "bytes";
if (isset($params["locale"])) {
$locale = $params["locale"];
}
$url = $uri;
$url_manager = new MUrlManager();
$this->_root = $url_manager->parseRootFromUrl($uri);
$path = $url_manager->parsePathFromUrl($uri);
$path = MUtils::convertStandardPath($path);
$originalPath = $path;
// 检查共享
$share_filter = MSharesFilter::init();
// $share_filter
//
// 获取用户数据，如user_id
$user = MUserManager::getInstance()->getCurrentUser();
$device = MUserManager::getInstance()->getCurrentDevice();
$this->_user_id = $user["user_id"];
$user_nick = $user["user_name"];
$user_device_id = $device["device_id"];
$this->_user_device_name = $device["user_device_name"];
$rev = $params["rev"];
$rev = intval($rev);
$path = "/{$this->_user_id}{$path}";
//
// 该文件是否具有此版本
//
$file_meta = MFileMetas::queryFileMeta($path, MConst::VERSION);
if ($file_meta == false || empty($file_meta)) {
throw new MFileopsException(Yii::t('api', ' Unable to find the revision at that path'), MConst::HTTP_CODE_404);
}
if (MUtils::isExistReversion($rev, $file_meta[0]["meta_value"]) == false) {
throw new MFileopsException(Yii::t('api', ' Unable to find the revision at that path'), MConst::HTTP_CODE_404);
}
//
// 查询版本信息
//
$version = MiniVersion::getInstance()->getVersion($rev);
if ($version == null) {
throw new MFileopsException(Yii::t('api', ' Unable to find the revision at that path'), MConst::HTTP_CODE_404);
}
$size = $version["file_size"];
$file_hash = $version["file_signature"];
//
// 查询文件信息
//
$query_db_file = MFiles::queryFilesByPath($path);
if ($query_db_file === false || empty($query_db_file)) {
throw new MFileopsException(Yii::t('api', 'not existed'), MConst::HTTP_CODE_404);
}
if ($query_db_file[0]["file_type"] == MConst::OBJECT_TYPE_DIRECTORY) {
// 文件夹不需要版本
throw new MFileopsException(Yii::t('api', 'folder not existed version'), MConst::HTTP_CODE_403);
}
if ($rev !== $query_db_file[0]["version_id"]) {
//
// 更新文件版本
//
$updates = array();
$updates["version_id"] = $rev;
$updates["file_update_time"] = time();
$updates["file_size"] = $size;
$updates["event_uuid"] = MiniUtil::getEventRandomString(MConst::LEN_EVENT_UUID);
$ret = MFiles::updateFileDetailById($query_db_file[0]["id"], $updates);
if ($ret === false) {
throw new MFileopsException(Yii::t('api', 'Internal Server Error'), MConst::HTTP_CODE_500);
}
$file_detail = new MFiles();
$file_detail->file_name = $query_db_file[0]["file_name"];
//
// 保存事件
//
$context = array("hash" => $file_hash, "rev" => (int) $rev, "bytes" => (int) $size);
//
// 增加修改事件
//
$ret = MiniEvent::getInstance()->createEvent($this->_user_id, $user_device_id, MConst::MODIFY_FILE, $path, serialize($context), $updates["event_uuid"]);
if ($ret === false) {
throw new MFileopsException(Yii::t('api', 'Internal Server Error'), MConst::HTTP_CODE_500);
}
$this->handleFileMeta($path, $rev, $user_nick, $this->_user_device_name, $query_db_file[0]["file_size"]);
}
// TODO
$mime_type = $version["mime_type"];
$response = array();
$response["size"] = MUtils::getSizeByLocale($locale, $size);
$response["is_deleted"] = true;
$response["bytes"] = intval($size);
$response["thumb_exists"] = MUtils::isExistThumbnail($mime_type, $size);
$response["path"] = $originalPath;
$response["root"] = $this->_root;
$response["is_dir"] = false;
$response["mime_type"] = $mime_type;
$response["modified"] = MUtils::formatIntTime(time());
$response["rev"] = strval($rev);
$response["revision"] = $rev;
echo json_encode($response);
}
/**
* 文件修改逻辑处理，包括冲突处理
* @param array $fileDetail
* @throws
* @return array
*/
private function modifyFile($fileDetail)
{
// 判断是否重写
if ($this->overwrite == false) {
$this->create_file = true;
return;
}
//
// 如果不为修改文件，则返回
//
if ($this->create_file == true) {
return;
}
$fileMeta = MFileMetas::queryFileMeta($fileDetail->file_path, MConst::VERSION);
if ($fileMeta == false || empty($fileMeta)) {
$this->create_file = true;
MFiles::updateFileDetailById($fileDetail->id, array('is_deleted' => 1));
return;
}
//
// 检查parent_rev是否存在
//
if (MUtils::isExistReversion($this->parent_rev, $fileMeta[0]["meta_value"]) == false) {
$this->parent_rev = 0;
}
//
// 修改的内容一致
//
if ($this->version_id == $fileDetail->version_id) {
$this->create_event = false;
return;
}
//
// 生成冲突文件
//
if ($fileDetail->version_id != $this->parent_rev && $this->parent_rev != 0) {
$this->conflict = true;
$this->create_file = true;
return;
}
//
// 空间判断
//
$sizeDiff = $this->size - $fileDetail->file_size;
$this->spaceFilter($sizeDiff);
//
// 修改文件
//
$this->action = MConst::MODIFY_FILE;
//如果在共享目录内进行修改则进行修改权限判断
if ($this->share_filter->is_shared) {
$this->share_filter->hasPermissionExecute($fileDetail->file_path, MPrivilege::FILE_MODIFY);
}
//
// 文件meta属性，版本信息
//
$version = MUtils::getFileVersions($this->user_device_name, $this->size, $this->version_id, $this->action, $this->user_id, $this->user_nick, $fileMeta[0]["meta_value"]);
//
// 需要更新的数据字段和值
//
$updates = array();
$updates["version_id"] = (int) $this->version_id;
$updates["file_size"] = $this->size;
$updates["file_update_time"] = $this->file_update_time;
$updates["event_uuid"] = MiniUtil::getEventRandomString(MConst::LEN_EVENT_UUID);
//
// 执行更新操作
//
if (MFiles::updateFileDetailById($fileDetail->id, $updates) === false) {
throw new MFilesException(Yii::t('api', MConst::INTERNAL_SERVER_ERROR), MConst::HTTP_CODE_500);
}
//
// 保存事件
//
$this->context = array("hash" => $this->file_hash, "rev" => (int) $this->version_id, "bytes" => (int) $this->size, "update_time" => (int) $this->file_update_time, "create_time" => (int) $this->file_create_time);
$retVal = MiniEvent::getInstance()->createEvent($this->currentUserId, $this->user_device_id, $this->action, $fileDetail->file_path, serialize($this->context), $updates["event_uuid"], $this->share_filter->type);
if ($retVal === false) {
throw new MFilesException(Yii::t('api', MConst::INTERNAL_SERVER_ERROR), MConst::HTTP_CODE_500);
}
$this->share_filter->handlerAction($this->action, $this->user_device_id, $fileDetail->file_path, $this->context);
//
// 只有版本历史中不存在的时候才更新
//
if (MUtils::isExistReversion($this->version_id, $fileMeta[0]["meta_value"]) == false) {
// 文件版本引用次数更新
if (MiniVersion::getInstance()->updateRefCount($this->version_id) == false) {
throw new MFilesException(Yii::t('api', MConst::INTERNAL_SERVER_ERROR), MConst::HTTP_CODE_500);
}
}
// 保存版本历史
if (MFileMetas::updateFileMeta($fileDetail->file_path, MConst::VERSION, $version) == false) {
throw new MFilesException(Yii::t('api', MConst::INTERNAL_SERVER_ERROR), MConst::HTTP_CODE_500);
}
}