package controllers import ( "context" "fmt" "net/http" "net/url" "strconv" "sync" model "github.com/cloudreve/Cloudreve/v3/models" "github.com/cloudreve/Cloudreve/v3/pkg/conf" "github.com/cloudreve/Cloudreve/v3/pkg/filesystem" "github.com/cloudreve/Cloudreve/v3/pkg/filesystem/driver/local" "github.com/cloudreve/Cloudreve/v3/pkg/filesystem/fsctx" "github.com/cloudreve/Cloudreve/v3/pkg/request" "github.com/cloudreve/Cloudreve/v3/pkg/serializer" "github.com/cloudreve/Cloudreve/v3/service/explorer" "github.com/gin-gonic/gin" ) func DownloadArchive(c *gin.Context) { // 创建上下文 ctx, cancel := context.WithCancel(context.Background()) defer cancel() var service explorer.DownloadService if err := c.ShouldBindUri(&service); err == nil { res := service.DownloadArchived(ctx, c) if res.Code != 0 { c.JSON(200, res) } } else { c.JSON(200, ErrorResponse(err)) } } func Archive(c *gin.Context) { // 创建上下文 ctx, cancel := context.WithCancel(context.Background()) defer cancel() var service explorer.ItemIDService if err := c.ShouldBindJSON(&service); err == nil { res := service.Archive(ctx, c) c.JSON(200, res) } else { c.JSON(200, ErrorResponse(err)) } } // Compress 创建文件压缩任务 func Compress(c *gin.Context) { var service explorer.ItemCompressService if err := c.ShouldBindJSON(&service); err == nil { res := service.CreateCompressTask(c) c.JSON(200, res) } else { c.JSON(200, ErrorResponse(err)) } } // Decompress 创建文件解压缩任务 func Decompress(c *gin.Context) { var service explorer.ItemDecompressService if err := c.ShouldBindJSON(&service); err == nil { res := service.CreateDecompressTask(c) c.JSON(200, res) } else { c.JSON(200, ErrorResponse(err)) } } // AnonymousGetContent 匿名获取文件资源 func AnonymousGetContent(c *gin.Context) { // 创建上下文 ctx, cancel := context.WithCancel(context.Background()) defer cancel() var service explorer.FileAnonymousGetService if err := c.ShouldBindUri(&service); err == nil { res := service.Download(ctx, c) if res.Code != 0 { c.JSON(200, res) } } else { c.JSON(200, ErrorResponse(err)) } } // AnonymousPermLink 文件签名后的永久链接 func AnonymousPermLink(c *gin.Context) { // 创建上下文 ctx, cancel := context.WithCancel(context.Background()) defer cancel() var service explorer.FileAnonymousGetService if err := c.ShouldBindUri(&service); err == nil { res := service.Source(ctx, c) // 是否需要重定向 if res.Code == -302 { c.Redirect(302, res.Data.(string)) return } // 是否有错误发生 if res.Code != 0 { c.JSON(200, res) } } else { c.JSON(200, ErrorResponse(err)) } } // GetSource 获取文件的外链地址 func GetSource(c *gin.Context) { // 创建上下文 ctx, cancel := context.WithCancel(context.Background()) defer cancel() fs, err := filesystem.NewFileSystemFromContext(c) if err != nil { c.JSON(200, serializer.Err(serializer.CodePolicyNotAllowed, err.Error(), err)) return } defer fs.Recycle() // 获取文件ID fileID, ok := c.Get("object_id") if !ok { c.JSON(200, serializer.ParamErr("文件不存在", err)) return } sourceURL, err := fs.GetSource(ctx, fileID.(uint)) if err != nil { c.JSON(200, serializer.Err(serializer.CodeNotSet, err.Error(), err)) return } c.JSON(200, serializer.Response{ Code: 0, Data: struct { URL string `json:"url"` }{URL: sourceURL}, }) } // Thumb 获取文件缩略图 func Thumb(c *gin.Context) { // 创建上下文 ctx, cancel := context.WithCancel(context.Background()) defer cancel() fs, err := filesystem.NewFileSystemFromContext(c) if err != nil { c.JSON(200, serializer.Err(serializer.CodePolicyNotAllowed, err.Error(), err)) return } defer fs.Recycle() // 获取文件ID fileID, ok := c.Get("object_id") if !ok { c.JSON(200, serializer.ParamErr("文件不存在", err)) return } // 获取缩略图 resp, err := fs.GetThumb(ctx, fileID.(uint)) if err != nil { c.JSON(200, serializer.Err(serializer.CodeNotSet, "无法获取缩略图", err)) return } if resp.Redirect { c.Header("Cache-Control", fmt.Sprintf("max-age=%d", resp.MaxAge)) c.Redirect(http.StatusMovedPermanently, resp.URL) return } defer resp.Content.Close() http.ServeContent(c.Writer, c.Request, "thumb."+conf.ThumbConfig.EncodeMethod, fs.FileTarget[0].UpdatedAt, resp.Content) } // Preview 预览文件 func Preview(c *gin.Context) { // 创建上下文 ctx, cancel := context.WithCancel(context.Background()) defer cancel() var service explorer.FileIDService if err := c.ShouldBindUri(&service); err == nil { res := service.PreviewContent(ctx, c, false) // 是否需要重定向 if res.Code == -301 { c.Redirect(301, res.Data.(string)) return } // 是否有错误发生 if res.Code != 0 { c.JSON(200, res) } } else { c.JSON(200, ErrorResponse(err)) } } // PreviewText 预览文本文件 func PreviewText(c *gin.Context) { // 创建上下文 ctx, cancel := context.WithCancel(context.Background()) defer cancel() var service explorer.FileIDService if err := c.ShouldBindUri(&service); err == nil { res := service.PreviewContent(ctx, c, true) // 是否有错误发生 if res.Code != 0 { c.JSON(200, res) } } else { c.JSON(200, ErrorResponse(err)) } } // GetDocPreview 获取DOC文件预览地址 func GetDocPreview(c *gin.Context) { // 创建上下文 ctx, cancel := context.WithCancel(context.Background()) defer cancel() var service explorer.FileIDService if err := c.ShouldBindUri(&service); err == nil { res := service.CreateDocPreviewSession(ctx, c) c.JSON(200, res) } else { c.JSON(200, ErrorResponse(err)) } } // CreateDownloadSession 创建文件下载会话 func CreateDownloadSession(c *gin.Context) { // 创建上下文 ctx, cancel := context.WithCancel(context.Background()) defer cancel() var service explorer.FileIDService if err := c.ShouldBindUri(&service); err == nil { res := service.CreateDownloadSession(ctx, c) c.JSON(200, res) } else { c.JSON(200, ErrorResponse(err)) } } // Download 文件下载 func Download(c *gin.Context) { // 创建上下文 ctx, cancel := context.WithCancel(context.Background()) defer cancel() var service explorer.DownloadService if err := c.ShouldBindUri(&service); err == nil { res := service.Download(ctx, c) if res.Code != 0 { c.JSON(200, res) } } else { c.JSON(200, ErrorResponse(err)) } } // PutContent 更新文件内容 func PutContent(c *gin.Context) { // 创建上下文 ctx, cancel := context.WithCancel(context.Background()) defer cancel() var service explorer.FileIDService if err := c.ShouldBindUri(&service); err == nil { res := service.PutContent(ctx, c) c.JSON(200, res) } else { c.JSON(200, ErrorResponse(err)) } } // FileUploadStream 本地策略流式上传 func FileUploadStream(c *gin.Context) { // 创建上下文 ctx, cancel := context.WithCancel(context.Background()) defer cancel() // 取得文件大小 fileSize, err := strconv.ParseUint(c.Request.Header.Get("Content-Length"), 10, 64) if err != nil { c.JSON(200, ErrorResponse(err)) return } // 非可用策略时拒绝上传 if user, ok := c.Get("user"); ok && !user.(*model.User).Policy.IsTransitUpload(fileSize) { request.BlackHole(c.Request.Body) c.JSON(200, serializer.Err(serializer.CodePolicyNotAllowed, "当前存储策略无法使用", nil)) return } // 解码文件名和路径 fileName, err := url.QueryUnescape(c.Request.Header.Get("X-Cr-FileName")) filePath, err := url.QueryUnescape(c.Request.Header.Get("X-Cr-Path")) if err != nil { c.JSON(200, ErrorResponse(err)) return } fileData := local.FileStream{ MIMEType: c.Request.Header.Get("Content-Type"), File: c.Request.Body, Size: fileSize, Name: fileName, VirtualPath: filePath, } // 创建文件系统 fs, err := filesystem.NewFileSystemFromContext(c) if err != nil { c.JSON(200, serializer.Err(serializer.CodePolicyNotAllowed, err.Error(), err)) return } // 给文件系统分配钩子 fs.Use("BeforeUpload", filesystem.HookValidateFile) fs.Use("BeforeUpload", filesystem.HookValidateCapacity) fs.Use("AfterUploadCanceled", filesystem.HookDeleteTempFile) fs.Use("AfterUploadCanceled", filesystem.HookGiveBackCapacity) fs.Use("AfterUpload", filesystem.GenericAfterUpload) fs.Use("AfterValidateFailed", filesystem.HookDeleteTempFile) fs.Use("AfterValidateFailed", filesystem.HookGiveBackCapacity) fs.Use("AfterUploadFailed", filesystem.HookGiveBackCapacity) // 执行上传 ctx = context.WithValue(ctx, fsctx.ValidateCapacityOnceCtx, &sync.Once{}) ctx = context.WithValue(ctx, fsctx.DisableOverwrite, true) uploadCtx := context.WithValue(ctx, fsctx.GinCtx, c) err = fs.Upload(uploadCtx, fileData) if err != nil { c.JSON(200, serializer.Err(serializer.CodeUploadFailed, err.Error(), err)) return } c.JSON(200, serializer.Response{ Code: 0, }) } // GetUploadCredential 获取上传凭证 func GetUploadCredential(c *gin.Context) { // 创建上下文 ctx, cancel := context.WithCancel(context.Background()) defer cancel() var service explorer.UploadCredentialService if err := c.ShouldBindQuery(&service); err == nil { res := service.Get(ctx, c) c.JSON(200, res) } else { c.JSON(200, ErrorResponse(err)) } } // SearchFile 搜索文件 func SearchFile(c *gin.Context) { var service explorer.ItemSearchService if err := c.ShouldBindUri(&service); err == nil { res := service.Search(c) c.JSON(200, res) } else { c.JSON(200, ErrorResponse(err)) } } // CreateFile 创建空白文件 func CreateFile(c *gin.Context) { var service explorer.SingleFileService if err := c.ShouldBindJSON(&service); err == nil { res := service.Create(c) c.JSON(200, res) } else { c.JSON(200, ErrorResponse(err)) } }