602 lines
16 KiB
Go
602 lines
16 KiB
Go
package onedrive
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import (
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"bytes"
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"io"
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"io/ioutil"
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"net/http"
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"net/url"
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"path"
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"strconv"
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"strings"
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"time"
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model "github.com/cloudreve/Cloudreve/v3/models"
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"github.com/cloudreve/Cloudreve/v3/pkg/cache"
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"github.com/cloudreve/Cloudreve/v3/pkg/filesystem/fsctx"
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"github.com/cloudreve/Cloudreve/v3/pkg/request"
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"github.com/cloudreve/Cloudreve/v3/pkg/util"
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)
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const (
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// SmallFileSize 单文件上传接口最大尺寸
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SmallFileSize uint64 = 4 * 1024 * 1024
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// ChunkSize 服务端中转分片上传分片大小
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ChunkSize uint64 = 10 * 1024 * 1024
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// ListRetry 列取请求重试次数
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ListRetry = 1
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)
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// GetSourcePath 获取文件的绝对路径
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func (info *FileInfo) GetSourcePath() string {
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res, err := url.PathUnescape(
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strings.TrimPrefix(
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path.Join(
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strings.TrimPrefix(info.ParentReference.Path, "/drive/root:"),
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info.Name,
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),
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"/",
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),
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)
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if err != nil {
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return ""
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}
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return res
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}
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// Error 实现error接口
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func (err RespError) Error() string {
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return err.APIError.Message
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}
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func (client *Client) getRequestURL(api string) string {
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base, _ := url.Parse(client.Endpoints.EndpointURL)
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if base == nil {
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return ""
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}
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base.Path = path.Join(base.Path, api)
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return base.String()
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}
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// ListChildren 根据路径列取子对象
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func (client *Client) ListChildren(ctx context.Context, path string) ([]FileInfo, error) {
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var requestURL string
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dst := strings.TrimPrefix(path, "/")
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if dst == "" {
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requestURL = client.getRequestURL("me/drive/root/children")
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} else {
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requestURL = client.getRequestURL("me/drive/root:/" + dst + ":/children")
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}
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res, err := client.requestWithStr(ctx, "GET", requestURL+"?$top=999999999", "", 200)
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if err != nil {
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retried := 0
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if v, ok := ctx.Value(fsctx.RetryCtx).(int); ok {
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retried = v
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}
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if retried < ListRetry {
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retried++
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util.Log().Debug("路径[%s]列取请求失败[%s]，5秒钟后重试", path, err)
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time.Sleep(time.Duration(5) * time.Second)
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return client.ListChildren(context.WithValue(ctx, fsctx.RetryCtx, retried), path)
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}
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return nil, err
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}
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var (
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decodeErr error
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fileInfo ListResponse
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)
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decodeErr = json.Unmarshal([]byte(res), &fileInfo)
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if decodeErr != nil {
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return nil, decodeErr
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}
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return fileInfo.Value, nil
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}
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// Meta 根据资源ID或文件路径获取文件元信息
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func (client *Client) Meta(ctx context.Context, id string, path string) (*FileInfo, error) {
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var requestURL string
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if id != "" {
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requestURL = client.getRequestURL("/me/drive/items/" + id)
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} else {
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dst := strings.TrimPrefix(path, "/")
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requestURL = client.getRequestURL("me/drive/root:/" + dst)
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}
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res, err := client.requestWithStr(ctx, "GET", requestURL+"?expand=thumbnails", "", 200)
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if err != nil {
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return nil, err
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}
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var (
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decodeErr error
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fileInfo FileInfo
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)
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decodeErr = json.Unmarshal([]byte(res), &fileInfo)
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if decodeErr != nil {
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return nil, decodeErr
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}
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return &fileInfo, nil
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}
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// CreateUploadSession 创建分片上传会话
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func (client *Client) CreateUploadSession(ctx context.Context, dst string, opts ...Option) (string, error) {
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options := newDefaultOption()
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for _, o := range opts {
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o.apply(options)
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}
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dst = strings.TrimPrefix(dst, "/")
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requestURL := client.getRequestURL("me/drive/root:/" + dst + ":/createUploadSession")
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body := map[string]map[string]interface{}{
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"item": {
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"@microsoft.graph.conflictBehavior": options.conflictBehavior,
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},
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}
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bodyBytes, _ := json.Marshal(body)
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res, err := client.requestWithStr(ctx, "POST", requestURL, string(bodyBytes), 200)
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if err != nil {
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return "", err
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}
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var (
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decodeErr error
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uploadSession UploadSessionResponse
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)
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decodeErr = json.Unmarshal([]byte(res), &uploadSession)
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if decodeErr != nil {
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return "", decodeErr
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}
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return uploadSession.UploadURL, nil
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}
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// GetUploadSessionStatus 查询上传会话状态
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func (client *Client) GetUploadSessionStatus(ctx context.Context, uploadURL string) (*UploadSessionResponse, error) {
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res, err := client.requestWithStr(ctx, "GET", uploadURL, "", 200)
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if err != nil {
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return nil, err
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}
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var (
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decodeErr error
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uploadSession UploadSessionResponse
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)
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decodeErr = json.Unmarshal([]byte(res), &uploadSession)
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if decodeErr != nil {
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return nil, decodeErr
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}
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return &uploadSession, nil
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}
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// UploadChunk 上传分片
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func (client *Client) UploadChunk(ctx context.Context, uploadURL string, chunk *Chunk) (*UploadSessionResponse, error) {
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res, err := client.request(
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ctx, "PUT", uploadURL, bytes.NewReader(chunk.Data[0:chunk.ChunkSize]),
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request.WithContentLength(int64(chunk.ChunkSize)),
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request.WithHeader(http.Header{
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"Content-Range": {fmt.Sprintf("bytes %d-%d/%d", chunk.Offset, chunk.Offset+chunk.ChunkSize-1, chunk.Total)},
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}),
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request.WithoutHeader([]string{"Authorization", "Content-Type"}),
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request.WithTimeout(time.Duration(300)*time.Second),
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)
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if err != nil {
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// 如果重试次数小于限制，5秒后重试
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if chunk.Retried < model.GetIntSetting("onedrive_chunk_retries", 1) {
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chunk.Retried++
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util.Log().Debug("分片偏移%d上传失败[%s]，5秒钟后重试", chunk.Offset, err)
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time.Sleep(time.Duration(5) * time.Second)
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return client.UploadChunk(ctx, uploadURL, chunk)
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}
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return nil, err
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}
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if chunk.IsLast() {
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return nil, nil
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}
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var (
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decodeErr error
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uploadRes UploadSessionResponse
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)
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decodeErr = json.Unmarshal([]byte(res), &uploadRes)
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if decodeErr != nil {
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return nil, decodeErr
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}
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return &uploadRes, nil
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}
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// Upload 上传文件
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func (client *Client) Upload(ctx context.Context, dst string, size int, file io.Reader) error {
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// 决定是否覆盖文件
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overwrite := "replace"
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if ctx.Value(fsctx.DisableOverwrite) != nil {
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overwrite = "fail"
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}
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// 小文件，使用简单上传接口上传
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if size <= int(SmallFileSize) {
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_, err := client.SimpleUpload(ctx, dst, file, int64(size), WithConflictBehavior(overwrite))
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return err
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}
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// 大文件，进行分片
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// 创建上传会话
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uploadURL, err := client.CreateUploadSession(ctx, dst, WithConflictBehavior(overwrite))
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if err != nil {
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return err
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}
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offset := 0
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chunkNum := size / int(ChunkSize)
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if size%int(ChunkSize) != 0 {
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chunkNum++
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}
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chunkData := make([]byte, ChunkSize)
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for i := 0; i < chunkNum; i++ {
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select {
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case <-ctx.Done():
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util.Log().Debug("OneDrive 客户端取消")
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return ErrClientCanceled
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default:
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// 分块
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chunkSize := int(ChunkSize)
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if size-offset < chunkSize {
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chunkSize = size - offset
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}
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// 因为后面需要错误重试，这里要把分片内容读到内存中
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chunkContent := chunkData[:chunkSize]
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_, err := io.ReadFull(file, chunkContent)
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chunk := Chunk{
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Offset: offset,
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ChunkSize: chunkSize,
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Total: size,
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Data: chunkContent,
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}
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// 上传
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_, err = client.UploadChunk(ctx, uploadURL, &chunk)
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if err != nil {
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return err
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}
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offset += chunkSize
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}
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}
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return nil
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}
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// DeleteUploadSession 删除上传会话
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func (client *Client) DeleteUploadSession(ctx context.Context, uploadURL string) error {
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_, err := client.requestWithStr(ctx, "DELETE", uploadURL, "", 204)
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if err != nil {
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return err
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}
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return nil
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}
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// SimpleUpload 上传小文件到dst
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func (client *Client) SimpleUpload(ctx context.Context, dst string, body io.Reader, size int64, opts ...Option) (*UploadResult, error) {
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options := newDefaultOption()
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for _, o := range opts {
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o.apply(options)
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}
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dst = strings.TrimPrefix(dst, "/")
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requestURL := client.getRequestURL("me/drive/root:/" + dst + ":/content")
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requestURL += ("?@microsoft.graph.conflictBehavior=" + options.conflictBehavior)
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res, err := client.request(ctx, "PUT", requestURL, body, request.WithContentLength(int64(size)),
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request.WithTimeout(time.Duration(150)*time.Second),
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)
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if err != nil {
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retried := 0
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if v, ok := ctx.Value(fsctx.RetryCtx).(int); ok {
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retried = v
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}
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if retried < model.GetIntSetting("onedrive_chunk_retries", 1) {
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retried++
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util.Log().Debug("文件[%s]上传失败[%s]，5秒钟后重试", dst, err)
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time.Sleep(time.Duration(5) * time.Second)
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return client.SimpleUpload(context.WithValue(ctx, fsctx.RetryCtx, retried), dst, body, size, opts...)
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}
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return nil, err
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}
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var (
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decodeErr error
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uploadRes UploadResult
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)
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decodeErr = json.Unmarshal([]byte(res), &uploadRes)
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if decodeErr != nil {
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return nil, decodeErr
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}
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return &uploadRes, nil
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}
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// BatchDelete 并行删除给出的文件，返回删除失败的文件，及第一个遇到的错误。此方法将文件分为
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// 20个一组，调用Delete并行删除
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// TODO 测试
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func (client *Client) BatchDelete(ctx context.Context, dst []string) ([]string, error) {
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groupNum := len(dst)/20 + 1
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finalRes := make([]string, 0, len(dst))
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res := make([]string, 0, 20)
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var err error
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for i := 0; i < groupNum; i++ {
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end := 20*i + 20
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if i == groupNum-1 {
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end = len(dst)
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}
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res, err = client.Delete(ctx, dst[20*i:end])
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finalRes = append(finalRes, res...)
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}
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return finalRes, err
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}
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// Delete 并行删除文件，返回删除失败的文件，及第一个遇到的错误，
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// 由于API限制，最多删除20个
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func (client *Client) Delete(ctx context.Context, dst []string) ([]string, error) {
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body := client.makeBatchDeleteRequestsBody(dst)
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res, err := client.requestWithStr(ctx, "POST", client.getRequestURL("$batch"), body, 200)
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if err != nil {
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return dst, err
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}
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var (
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decodeErr error
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deleteRes BatchResponses
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)
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decodeErr = json.Unmarshal([]byte(res), &deleteRes)
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if decodeErr != nil {
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return dst, decodeErr
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}
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// 取得删除失败的文件
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failed := getDeleteFailed(&deleteRes)
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if len(failed) != 0 {
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return failed, ErrDeleteFile
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}
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return failed, nil
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}
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func getDeleteFailed(res *BatchResponses) []string {
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var failed = make([]string, 0, len(res.Responses))
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for _, v := range res.Responses {
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if v.Status != 204 && v.Status != 404 {
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failed = append(failed, v.ID)
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}
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}
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return failed
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}
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// makeBatchDeleteRequestsBody 生成批量删除请求正文
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func (client *Client) makeBatchDeleteRequestsBody(files []string) string {
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req := BatchRequests{
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Requests: make([]BatchRequest, len(files)),
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}
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for i, v := range files {
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v = strings.TrimPrefix(v, "/")
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filePath, _ := url.Parse("/me/drive/root:/")
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filePath.Path = path.Join(filePath.Path, v)
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req.Requests[i] = BatchRequest{
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ID: v,
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Method: "DELETE",
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URL: filePath.EscapedPath(),
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}
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}
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res, _ := json.Marshal(req)
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return string(res)
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}
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// GetThumbURL 获取给定尺寸的缩略图URL
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func (client *Client) GetThumbURL(ctx context.Context, dst string, w, h uint) (string, error) {
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dst = strings.TrimPrefix(dst, "/")
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var (
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cropOption string
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requestURL string
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)
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if client.Endpoints.isInChina {
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cropOption = "large"
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requestURL = client.getRequestURL("me/drive/root:/"+dst+":/thumbnails/0") + "/" + cropOption
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} else {
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cropOption = fmt.Sprintf("c%dx%d_Crop", w, h)
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requestURL = client.getRequestURL("me/drive/root:/"+dst+":/thumbnails") + "?select=" + cropOption
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}
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res, err := client.requestWithStr(ctx, "GET", requestURL, "", 200)
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if err != nil {
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return "", err
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}
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var (
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decodeErr error
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thumbRes ThumbResponse
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)
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decodeErr = json.Unmarshal([]byte(res), &thumbRes)
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if decodeErr != nil {
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return "", decodeErr
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}
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if thumbRes.URL != "" {
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return thumbRes.URL, nil
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}
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if len(thumbRes.Value) == 1 {
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if res, ok := thumbRes.Value[0][cropOption]; ok {
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return res.(map[string]interface{})["url"].(string), nil
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}
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}
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return "", errors.New("无法生成缩略图")
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}
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// MonitorUpload 监控客户端分片上传进度
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func (client *Client) MonitorUpload(uploadURL, callbackKey, path string, size uint64, ttl int64) {
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// 回调完成通知chan
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callbackChan := make(chan bool)
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callbackSignal.Store(callbackKey, callbackChan)
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defer callbackSignal.Delete(callbackKey)
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timeout := model.GetIntSetting("onedrive_monitor_timeout", 600)
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interval := model.GetIntSetting("onedrive_callback_check", 20)
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for {
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select {
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case <-callbackChan:
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util.Log().Debug("客户端完成回调")
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return
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case <-time.After(time.Duration(ttl) * time.Second):
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// 上传会话到期，仍未完成上传，创建占位符
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client.DeleteUploadSession(context.Background(), uploadURL)
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_, err := client.SimpleUpload(context.Background(), path, strings.NewReader(""), 0, WithConflictBehavior("replace"))
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if err != nil {
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util.Log().Debug("无法创建占位文件，%s", err)
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}
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return
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case <-time.After(time.Duration(timeout) * time.Second):
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util.Log().Debug("检查上传情况")
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status, err := client.GetUploadSessionStatus(context.Background(), uploadURL)
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if err != nil {
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if resErr, ok := err.(*RespError); ok {
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if resErr.APIError.Code == "itemNotFound" {
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util.Log().Debug("上传会话已完成，稍后检查回调")
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time.Sleep(time.Duration(interval) * time.Second)
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util.Log().Debug("开始检查回调")
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_, ok := cache.Get("callback_" + callbackKey)
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if ok {
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util.Log().Warning("未发送回调，删除文件")
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cache.Deletes([]string{callbackKey}, "callback_")
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_, err = client.Delete(context.Background(), []string{path})
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if err != nil {
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util.Log().Warning("无法删除未回调的文件，%s", err)
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}
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}
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return
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}
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}
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util.Log().Debug("无法获取上传会话状态，继续下一轮，%s", err.Error())
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continue
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}
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// 成功获取分片上传状态，检查文件大小
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if len(status.NextExpectedRanges) == 0 {
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continue
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}
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sizeRange := strings.Split(
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status.NextExpectedRanges[len(status.NextExpectedRanges)-1],
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"-",
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)
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if len(sizeRange) != 2 {
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continue
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}
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uploadFullSize, _ := strconv.ParseUint(sizeRange[1], 10, 64)
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if (sizeRange[0] == "0" && sizeRange[1] == "") || uploadFullSize+1 != size {
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util.Log().Debug("未开始上传或文件大小不一致，取消上传会话")
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// 取消上传会话，实测OneDrive取消上传会话后，客户端还是可以上传，
|
||
// 所以上传一个空文件占位，阻止客户端上传
|
||
client.DeleteUploadSession(context.Background(), uploadURL)
|
||
_, err := client.SimpleUpload(context.Background(), path, strings.NewReader(""), 0, WithConflictBehavior("replace"))
|
||
if err != nil {
|
||
util.Log().Debug("无法创建占位文件，%s", err)
|
||
}
|
||
return
|
||
}
|
||
|
||
}
|
||
}
|
||
}
|
||
|
||
// FinishCallback 向Monitor发送回调结束信号
|
||
func FinishCallback(key string) {
|
||
if signal, ok := callbackSignal.Load(key); ok {
|
||
if signalChan, ok := signal.(chan bool); ok {
|
||
close(signalChan)
|
||
}
|
||
}
|
||
}
|
||
|
||
func sysError(err error) *RespError {
|
||
return &RespError{APIError: APIError{
|
||
Code: "system",
|
||
Message: err.Error(),
|
||
}}
|
||
}
|
||
|
||
func (client *Client) request(ctx context.Context, method string, url string, body io.Reader, option ...request.Option) (string, *RespError) {
|
||
// 获取凭证
|
||
err := client.UpdateCredential(ctx)
|
||
if err != nil {
|
||
return "", sysError(err)
|
||
}
|
||
|
||
option = append(option,
|
||
request.WithHeader(http.Header{
|
||
"Authorization": {"Bearer " + client.Credential.AccessToken},
|
||
"Content-Type": {"application/json"},
|
||
}),
|
||
request.WithContext(ctx),
|
||
)
|
||
|
||
// 发送请求
|
||
res := client.Request.Request(
|
||
method,
|
||
url,
|
||
body,
|
||
option...,
|
||
)
|
||
|
||
if res.Err != nil {
|
||
return "", sysError(res.Err)
|
||
}
|
||
|
||
respBody, err := res.GetResponse()
|
||
if err != nil {
|
||
return "", sysError(err)
|
||
}
|
||
|
||
// 解析请求响应
|
||
var (
|
||
errResp RespError
|
||
decodeErr error
|
||
)
|
||
// 如果有错误
|
||
if res.Response.StatusCode < 200 || res.Response.StatusCode >= 300 {
|
||
decodeErr = json.Unmarshal([]byte(respBody), &errResp)
|
||
if decodeErr != nil {
|
||
util.Log().Debug("Onedrive返回未知响应[%s]", respBody)
|
||
return "", sysError(decodeErr)
|
||
}
|
||
return "", &errResp
|
||
}
|
||
|
||
return respBody, nil
|
||
}
|
||
|
||
func (client *Client) requestWithStr(ctx context.Context, method string, url string, body string, expectedCode int) (string, *RespError) {
|
||
// 发送请求
|
||
bodyReader := ioutil.NopCloser(strings.NewReader(body))
|
||
return client.request(ctx, method, url, bodyReader,
|
||
request.WithContentLength(int64(len(body))),
|
||
)
|
||
}
|