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package explorer
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import (
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"context"
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"github.com/HFO4/cloudreve/pkg/cache"
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"github.com/HFO4/cloudreve/pkg/filesystem"
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"github.com/HFO4/cloudreve/pkg/filesystem/fsctx"
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"github.com/HFO4/cloudreve/pkg/serializer"
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"github.com/gin-gonic/gin"
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"io"
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"net/http"
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"time"
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)
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// FileDownloadService 文件下载服务，path为文件完整路径
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type FileDownloadService struct {
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Path string `uri:"path" binding:"required,min=1,max=65535"`
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}
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type FileAnonymousGetService struct {
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ID uint `uri:"id" binding:"required,min=1"`
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Name string `uri:"name" binding:"required"`
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}
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type ArchiveDownloadService struct {
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ID string `uri:"id" binding:"required"`
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}
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// Download 下載已打包的多文件
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func (service *ArchiveDownloadService) Download(ctx context.Context, c *gin.Context) serializer.Response {
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// 创建文件系统
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fs, err := filesystem.NewFileSystemFromContext(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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// 查找打包的临时文件
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zipPath, exist := cache.Get("archive_" + service.ID)
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if !exist {
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return serializer.Err(404, "归档文件不存在", nil)
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}
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// 获取文件流
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rs, err := fs.GetPhysicalFileContent(ctx, zipPath.(string))
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if err != nil {
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return serializer.Err(serializer.CodeNotSet, err.Error(), err)
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}
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if fs.User.Group.OptionsSerialized.OneTimeDownloadEnabled {
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// 清理资源，删除临时文件
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_ = cache.Deletes([]string{service.ID}, "archive_")
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}
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c.Header("Content-Disposition", "attachment;")
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c.Header("Content-Type", "application/zip")
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http.ServeContent(c.Writer, c.Request, "", time.Now(), rs)
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// 检查是否需要关闭文件
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if fc, ok := rs.(io.Closer); ok {
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err = fc.Close()
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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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// Download 签名的匿名文件下载
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func (service *FileAnonymousGetService) Download(ctx context.Context, c *gin.Context) serializer.Response {
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fs, err := filesystem.NewAnonymousFileSystem()
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if err != nil {
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return serializer.Err(serializer.CodeGroupNotAllowed, err.Error(), err)
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}
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// 查找文件
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err = fs.SetTargetFileByIDs([]uint{service.ID})
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if err != nil {
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return serializer.Err(serializer.CodeNotSet, err.Error(), err)
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}
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// 获取文件流
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rs, err := fs.GetDownloadContent(ctx, "")
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if err != nil {
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return serializer.Err(serializer.CodeNotSet, err.Error(), err)
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}
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// 发送文件
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http.ServeContent(c.Writer, c.Request, service.Name, fs.FileTarget[0].UpdatedAt, rs)
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// 检查是否需要关闭文件
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if fc, ok := rs.(io.Closer); ok {
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defer fc.Close()
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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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// Download 文件下载
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func (service *FileDownloadService) Download(ctx context.Context, c *gin.Context) serializer.Response {
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// 创建文件系统
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fs, err := filesystem.NewFileSystemFromContext(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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// 开始处理下载
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ctx = context.WithValue(ctx, fsctx.GinCtx, c)
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rs, err := fs.GetDownloadContent(ctx, service.Path)
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if err != nil {
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return serializer.Err(serializer.CodeNotSet, err.Error(), err)
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}
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// 设置文件名
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c.Header("Content-Disposition", "attachment; filename=\""+fs.FileTarget[0].Name+"\"")
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// 发送文件
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http.ServeContent(c.Writer, c.Request, "", fs.FileTarget[0].UpdatedAt, rs)
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// 检查是否需要关闭文件
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if fc, ok := rs.(io.Closer); ok {
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defer fc.Close()
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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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