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package callback
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import (
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"context"
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"fmt"
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"strings"
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"github.com/cloudreve/Cloudreve/v3/pkg/filesystem"
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"github.com/cloudreve/Cloudreve/v3/pkg/filesystem/driver/cos"
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"github.com/cloudreve/Cloudreve/v3/pkg/filesystem/driver/onedrive"
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"github.com/cloudreve/Cloudreve/v3/pkg/filesystem/driver/s3"
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"github.com/cloudreve/Cloudreve/v3/pkg/filesystem/fsctx"
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"github.com/cloudreve/Cloudreve/v3/pkg/serializer"
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"github.com/cloudreve/Cloudreve/v3/pkg/util"
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"github.com/gin-gonic/gin"
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)
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// CallbackProcessService 上传请求回调正文接口
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type CallbackProcessService interface {
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GetBody(*serializer.UploadSession) serializer.UploadCallback
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}
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// RemoteUploadCallbackService 远程存储上传回调请求服务
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type RemoteUploadCallbackService struct {
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Data serializer.UploadCallback `json:"data" binding:"required"`
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}
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// GetBody 返回回调正文
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func (service RemoteUploadCallbackService) GetBody(session *serializer.UploadSession) serializer.UploadCallback {
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return service.Data
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}
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// UploadCallbackService OOS/七牛云存储上传回调请求服务
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type UploadCallbackService struct {
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Name string `json:"name"`
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SourceName string `json:"source_name"`
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PicInfo string `json:"pic_info"`
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Size uint64 `json:"size"`
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}
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// UpyunCallbackService 又拍云上传回调请求服务
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type UpyunCallbackService struct {
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Code int `form:"code" binding:"required"`
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Message string `form:"message" binding:"required"`
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SourceName string `form:"url" binding:"required"`
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Width string `form:"image-width"`
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Height string `form:"image-height"`
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Size uint64 `form:"file_size"`
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}
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// OneDriveCallback OneDrive 客户端回调正文
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type OneDriveCallback struct {
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ID string `json:"id" binding:"required"`
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Meta *onedrive.FileInfo
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}
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// COSCallback COS 客户端回调正文
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type COSCallback struct {
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Bucket string `form:"bucket"`
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Etag string `form:"etag"`
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}
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// S3Callback S3 客户端回调正文
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type S3Callback struct {
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Bucket string `form:"bucket"`
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Etag string `form:"etag"`
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Key string `form:"key"`
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}
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// GetBody 返回回调正文
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func (service UpyunCallbackService) GetBody(session *serializer.UploadSession) serializer.UploadCallback {
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res := serializer.UploadCallback{
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Name: session.Name,
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SourceName: service.SourceName,
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Size: service.Size,
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}
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if service.Width != "" {
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res.PicInfo = service.Width + "," + service.Height
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}
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return res
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}
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// GetBody 返回回调正文
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func (service UploadCallbackService) GetBody(session *serializer.UploadSession) serializer.UploadCallback {
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return serializer.UploadCallback{
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Name: service.Name,
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SourceName: service.SourceName,
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PicInfo: service.PicInfo,
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Size: service.Size,
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}
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}
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// GetBody 返回回调正文
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func (service OneDriveCallback) GetBody(session *serializer.UploadSession) serializer.UploadCallback {
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var picInfo = "0,0"
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if service.Meta.Image.Width != 0 {
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picInfo = fmt.Sprintf("%d,%d", service.Meta.Image.Width, service.Meta.Image.Height)
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}
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return serializer.UploadCallback{
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Name: session.Name,
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SourceName: session.SavePath,
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PicInfo: picInfo,
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Size: session.Size,
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}
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}
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// GetBody 返回回调正文
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func (service COSCallback) GetBody(session *serializer.UploadSession) serializer.UploadCallback {
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return serializer.UploadCallback{
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Name: session.Name,
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SourceName: session.SavePath,
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PicInfo: "",
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Size: session.Size,
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}
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}
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// GetBody 返回回调正文
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func (service S3Callback) GetBody(session *serializer.UploadSession) serializer.UploadCallback {
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return serializer.UploadCallback{
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Name: session.Name,
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SourceName: session.SavePath,
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PicInfo: "",
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Size: session.Size,
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}
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}
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// ProcessCallback 处理上传结果回调
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func ProcessCallback(service CallbackProcessService, c *gin.Context) serializer.Response {
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// 创建文件系统
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fs, err := filesystem.NewFileSystemFromCallback(c)
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if err != nil {
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return serializer.Err(serializer.CodePolicyNotAllowed, err.Error(), err)
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}
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defer fs.Recycle()
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// 获取回调会话
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callbackSessionRaw, _ := c.Get("callbackSession")
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callbackSession := callbackSessionRaw.(*serializer.UploadSession)
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callbackBody := service.GetBody(callbackSession)
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// 获取父目录
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exist, parentFolder := fs.IsPathExist(callbackSession.VirtualPath)
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if !exist {
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newFolder, err := fs.CreateDirectory(context.Background(), callbackSession.VirtualPath)
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if err != nil {
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return serializer.Err(serializer.CodeParamErr, "指定目录不存在", err)
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}
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parentFolder = newFolder
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}
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// 创建文件头
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fileHeader := fsctx.FileStream{
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Size: callbackBody.Size,
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VirtualPath: callbackSession.VirtualPath,
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Name: callbackSession.Name,
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SavePath: callbackBody.SourceName,
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}
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// 添加钩子
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fs.Use("BeforeAddFile", filesystem.HookValidateFile)
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fs.Use("BeforeAddFile", filesystem.HookValidateCapacity)
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fs.Use("AfterValidateFailed", filesystem.HookDeleteTempFile)
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fs.Use("BeforeAddFileFailed", filesystem.HookDeleteTempFile)
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// 向数据库中添加文件
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file, err := fs.AddFile(context.Background(), parentFolder, &fileHeader)
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if err != nil {
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return serializer.Err(serializer.CodeUploadFailed, err.Error(), err)
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}
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// 如果是图片,则更新图片信息
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if callbackBody.PicInfo != "" {
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if err := file.UpdatePicInfo(callbackBody.PicInfo); err != nil {
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util.Log().Debug("无法更新回调文件的图片信息:%s", err)
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}
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}
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return serializer.Response{
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Code: 0,
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}
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}
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// PreProcess 对OneDrive客户端回调进行预处理验证
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func (service *OneDriveCallback) PreProcess(c *gin.Context) serializer.Response {
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// 创建文件系统
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fs, err := filesystem.NewFileSystemFromCallback(c)
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if err != nil {
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return serializer.Err(serializer.CodePolicyNotAllowed, err.Error(), err)
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}
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defer fs.Recycle()
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// 获取回调会话
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callbackSessionRaw, _ := c.Get("callbackSession")
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callbackSession := callbackSessionRaw.(*serializer.UploadSession)
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// 获取文件信息
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info, err := fs.Handler.(onedrive.Driver).Client.Meta(context.Background(), service.ID, "")
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if err != nil {
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return serializer.Err(serializer.CodeUploadFailed, "文件元信息查询失败", err)
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}
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// 验证与回调会话中是否一致
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actualPath := strings.TrimPrefix(callbackSession.SavePath, "/")
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isSizeCheckFailed := callbackSession.Size != info.Size
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// SharePoint 会对 Office 文档增加 meta data 导致文件大小不一致,这里增加 10 KB 宽容
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// See: https://github.com/OneDrive/onedrive-api-docs/issues/935
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if strings.Contains(fs.Policy.OptionsSerialized.OdDriver, "sharepoint.com") && isSizeCheckFailed && (info.Size > callbackSession.Size) && (info.Size-callbackSession.Size <= 10240) {
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isSizeCheckFailed = false
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}
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if isSizeCheckFailed || info.GetSourcePath() != actualPath {
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fs.Handler.(onedrive.Driver).Client.Delete(context.Background(), []string{info.GetSourcePath()})
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return serializer.Err(serializer.CodeUploadFailed, "文件信息不一致", err)
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}
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service.Meta = info
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return ProcessCallback(service, c)
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}
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// PreProcess 对COS客户端回调进行预处理
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func (service *COSCallback) PreProcess(c *gin.Context) serializer.Response {
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// 创建文件系统
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fs, err := filesystem.NewFileSystemFromCallback(c)
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if err != nil {
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return serializer.Err(serializer.CodePolicyNotAllowed, err.Error(), err)
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}
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defer fs.Recycle()
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// 获取回调会话
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callbackSessionRaw, _ := c.Get("callbackSession")
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callbackSession := callbackSessionRaw.(*serializer.UploadSession)
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// 获取文件信息
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info, err := fs.Handler.(cos.Driver).Meta(context.Background(), callbackSession.SavePath)
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if err != nil {
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return serializer.Err(serializer.CodeUploadFailed, "文件信息不一致", err)
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}
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// 验证实际文件信息与回调会话中是否一致
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if callbackSession.Size != info.Size || callbackSession.Key != info.CallbackKey {
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return serializer.Err(serializer.CodeUploadFailed, "文件信息不一致", err)
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}
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return ProcessCallback(service, c)
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}
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// PreProcess 对S3客户端回调进行预处理
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func (service *S3Callback) PreProcess(c *gin.Context) serializer.Response {
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// 创建文件系统
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fs, err := filesystem.NewFileSystemFromCallback(c)
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if err != nil {
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return serializer.Err(serializer.CodePolicyNotAllowed, err.Error(), err)
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}
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defer fs.Recycle()
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// 获取回调会话
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callbackSessionRaw, _ := c.Get("callbackSession")
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callbackSession := callbackSessionRaw.(*serializer.UploadSession)
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// 获取文件信息
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info, err := fs.Handler.(s3.Driver).Meta(context.Background(), callbackSession.SavePath)
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if err != nil {
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return serializer.Err(serializer.CodeUploadFailed, "文件信息不一致", err)
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}
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// 验证实际文件信息与回调会话中是否一致
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if callbackSession.Size != info.Size || service.Etag != info.Etag {
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return serializer.Err(serializer.CodeUploadFailed, "文件信息不一致", err)
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}
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return ProcessCallback(service, c)
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}
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