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package onedrive
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import (
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"context"
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"errors"
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model "github.com/HFO4/cloudreve/models"
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"github.com/HFO4/cloudreve/pkg/filesystem/fsctx"
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"github.com/HFO4/cloudreve/pkg/filesystem/response"
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"github.com/HFO4/cloudreve/pkg/request"
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"github.com/HFO4/cloudreve/pkg/serializer"
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"io"
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"net/url"
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)
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// Driver OneDrive 适配器
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type Driver struct {
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Policy *model.Policy
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Client *Client
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HTTPClient request.Client
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}
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// Get 获取文件
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func (handler Driver) Get(ctx context.Context, path string) (response.RSCloser, error) {
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// 获取文件源地址
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downloadURL, err := handler.Source(
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ctx,
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path,
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url.URL{},
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60,
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false,
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0,
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)
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if err != nil {
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return nil, err
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}
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// 获取文件数据流
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resp, err := handler.HTTPClient.Request(
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"GET",
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downloadURL,
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nil,
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request.WithContext(ctx),
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).CheckHTTPResponse(200).GetRSCloser()
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if err != nil {
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return nil, err
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}
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resp.SetFirstFakeChunk()
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// 尝试自主获取文件大小
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if file, ok := ctx.Value(fsctx.FileModelCtx).(model.File); ok {
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resp.SetContentLength(int64(file.Size))
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}
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return resp, nil
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}
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// Put 将文件流保存到指定目录
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func (handler Driver) Put(ctx context.Context, file io.ReadCloser, dst string, size uint64) error {
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defer file.Close()
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return handler.Client.Upload(ctx, dst, int(size), file)
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}
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// Delete 删除一个或多个文件，
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// 返回未删除的文件，及遇到的最后一个错误
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func (handler Driver) Delete(ctx context.Context, files []string) ([]string, error) {
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return handler.Client.Delete(ctx, files)
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}
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// Thumb 获取文件缩略图
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func (handler Driver) Thumb(ctx context.Context, path string) (*response.ContentResponse, error) {
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var (
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thumbSize = [2]uint{400, 300}
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ok = false
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)
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if thumbSize, ok = ctx.Value(fsctx.ThumbSizeCtx).([2]uint); !ok {
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return nil, errors.New("无法获取缩略图尺寸设置")
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}
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res, err := handler.Client.GetThumbURL(ctx, path, thumbSize[0], thumbSize[1])
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if err != nil {
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// 如果出现异常，就清空文件的pic_info
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if file, ok := ctx.Value(fsctx.FileModelCtx).(model.File); ok {
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file.UpdatePicInfo("")
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}
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}
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return &response.ContentResponse{
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Redirect: true,
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URL: res,
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}, err
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}
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// Source 获取外链URL
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func (handler Driver) Source(
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ctx context.Context,
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path string,
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baseURL url.URL,
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ttl int64,
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isDownload bool,
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speed int,
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) (string, error) {
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res, err := handler.Client.Meta(ctx, "", path)
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if err == nil {
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return res.DownloadURL, nil
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}
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return "", err
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}
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// Token 获取上传会话URL
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func (handler Driver) Token(ctx context.Context, TTL int64, key string) (serializer.UploadCredential, error) {
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// 读取上下文中生成的存储路径和文件大小
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savePath, ok := ctx.Value(fsctx.SavePathCtx).(string)
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if !ok {
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return serializer.UploadCredential{}, errors.New("无法获取存储路径")
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}
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fileSize, ok := ctx.Value(fsctx.FileSizeCtx).(uint64)
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if !ok {
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return serializer.UploadCredential{}, errors.New("无法获取文件大小")
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}
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// 如果小于4MB，则由服务端中转
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if fileSize <= SmallFileSize {
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return serializer.UploadCredential{}, nil
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}
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// 生成回调地址
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siteURL := model.GetSiteURL()
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apiBaseURI, _ := url.Parse("/api/v3/callback/onedrive/finish/" + key)
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apiURL := siteURL.ResolveReference(apiBaseURI)
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uploadURL, err := handler.Client.CreateUploadSession(ctx, savePath, WithConflictBehavior("fail"))
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if err != nil {
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return serializer.UploadCredential{}, err
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}
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// 监控回调及上传
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go handler.Client.MonitorUpload(uploadURL, key, savePath, fileSize, TTL)
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return serializer.UploadCredential{
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Policy: uploadURL,
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Token: apiURL.String(),
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}, nil
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}
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