Question

我正在尝试Multipart upload to OneDrive using POST并获取'HTTP / 1.1 400错误请求'。 IdLogFile：

Stat Connected.
Sent 10.02.2017 12:50:08: POST /v1.0/drive/root::/children HTTP/1.0`<EOL>`Content-Type: multipart/related; boundary="Boundary"`<EOL>`Content-Length: 254`<EOL>`Authorization: Bearer EwA...%3d`<EOL>`Host: api.onedrive.com`<EOL>`Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8`<EOL>`Accept-Encoding: identity`<EOL>`User-Agent: Mozilla/3.0 (compatible; Indy Library)`<EOL><EOL>`
Sent 10.02.2017 12:50:08: --Boundary`<EOL>`Content-ID: <metadata>`<EOL>`Content-Type: application/json`<EOL>`{"name":"Dest.txt", "file":{}, "@content.sourceUrl":"cid:content"}`<EOL>`--Boundary`<EOL>`Content-ID: <content><EOL>Content-Type: application/octet-stream<SourceContent>--Boundary--
Recv 10.02.2017 12:50:08: H
Recv 10.02.2017 12:50:08: TTP/1.1 400 Bad Request`<EOL>`Via: 1.1 DM5SCH102210409 (wls-colorado)`<EOL>`Content-Length: 60`<EOL>`Content-Type: application/json`<EOL>`Server: Microsoft-IIS/8.5`<EOL>`P3P: CP="BUS CUR CONo FIN IVDo ONL OUR PHY SAMo TELo"`<EOL>`X-WLSPROXY: DM5SCH102210409`<EOL>`X-MSNSERVER: DM5SCH102231823`<EOL>`Strict-Transport-Security: max-age=31536000; includeSubDomains`<EOL>`X-QosStats: {"ApiId":0,"ResultType":2,"SourcePropertyId":0,"TargetPropertyId":42}`<EOL>`X-ThrowSite: 1479.b891`<EOL>`X-AsmVersion: UNKNOWN; 16.0.0.0`<EOL>`X-MSEdge-Ref: Ref A: A9918FA26FAF469EB3797E9DAEA3172E Ref B: FRAEDGE0409 Ref C: Fri Feb 10 01:50:09 2017 PST`<EOL>`Date: Fri, 10 Feb 2017 09:50:09 GMT`<EOL>`Connection: close`<EOL><EOL>`{"error":{"code":"invalidRequest","message":"Bad Argument"}}
Stat Disconnected.

代码：

procedure TSaveFilter.UploadTest;
const
  URL = 'https://api.onedrive.com/v1.0/drive/root::/children';
  Boundary = 'Boundary';
var
  IdHTTP: TIdHTTP;
  MemoryStream: TMemoryStream;
  FileStream: TFileStream;

  procedure WriteLnString(str: AnsiString; CRLF: Boolean = True);
  begin
    if CRLF then str := str + #13#10;
    MemoryStream.Write(str[1], Length(str));
  end;
begin
  IdHTTP := TIdHTTP.Create(nil);
  try
    IdHTTP.HandleRedirects := True;
    IdHTTP.IOHandler := TIdSSLIOHandlerSocketOpenSSL.Create(IdHTTP);
    IdHTTP.Request.BasicAuthentication := False;
    IdHTTP.Request.CustomHeaders.Values['Authorization'] := 'Bearer ' + FAccessToken;
    IdHTTP.Request.ContentType := Format('multipart/related; boundary="%s"', [Boundary]);

    MemoryStream := TMemoryStream.Create;
    try
      WriteLnString('--' + Boundary);
      WriteLnString('Content-ID: <metadata>');
      WriteLnString('Content-Type: application/json');
      WriteLnString('{"name":"Dest.txt", "file":{}, "@content.sourceUrl":"cid:content"}');
      WriteLnString('--' + Boundary);
      WriteLnString('Content-ID: <content>');
      WriteLnString('Content-Type: application/octet-stream', False);
      FileStream := TFileStream.Create('Source.txt', fmOpenRead);
      try
        MemoryStream.CopyFrom(FileStream, FileStream.Size);
      finally
        FileStream.Free;
      end;
      WriteLnString('--' + Boundary + '--', False);
      IdHTTP.Post(URL, MemoryStream);
    finally
      MemoryStream.Free;
    end;
  finally
    IdHTTP.Free;
  end;
end;

我做错了什么？

这是一个工作请求（List children）：

Stat Connected.
Sent 10.02.2017 20:52:42: GET /v1.0/drive/root::/children?select=name,folder,file HTTP/1.1`<EOL>`Authorization: Bearer EwA...%3d`<EOL>`Host: api.onedrive.com`<EOL>`Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8`<EOL>`Accept-Encoding: identity`<EOL>`User-Agent: Mozilla/3.0 (compatible; Indy Library)`<EOL>``<EOL>`
Recv 10.02.2017 20:52:43: H
Recv 10.02.2017 20:52:43: TTP/1.1 200 OK`<EOL>`Via: 1.1 BN2BAP4ED8CB55D (wls-colorado)`<EOL>`Content-Length: 213`<EOL>`Content-Type: application/json; odata.metadata=minimal`<EOL>`Server: Microsoft-IIS/8.5`<EOL>`P3P: CP="BUS CUR CONo FIN IVDo ONL OUR PHY SAMo TELo"`<EOL>`X-WLSPROXY: BN2BAP4ED8CB55D``X-MSNSERVER: DM5SCH102231619`<EOL>`Strict-Transport-Security: max-age=31536000; includeSubDomains`<EOL>`OData-Version: 4.0`<EOL>`X-AsmVersion: UNKNOWN; 16.0.0.0`<EOL>`X-MSEdge-Ref: Ref A: ECB06A4BE05B478AB36611C892C36CC7 Ref B: AM1EDGE0419 Ref C: Fri Feb 10 09:52:43 2017 PST``Date: Fri, 10 Feb 2017 17:52:43 GMT`<EOL>``<EOL>`{"@odata.context":"https://api.onedrive.com/v1.0/$metadata#drives('me')/items('root')/children(name,folder,file)","value":[{"name":"AB","folder":{"childCount":7}},{"name":"ArecaBackup","folder":{"childCount":6}}]}
Stat Disconnected.

Answer 1

您的MIME数据格式错误，这就是服务器拒绝它的原因。

这是您要发送的请求：

POST /v1.0/drive/root::/children HTTP/1.0
Content-Type: multipart/related; boundary="Boundary"
Content-Length: 254
Authorization: Bearer EwA...%3d
Host: api.onedrive.com
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Encoding: identity
User-Agent: Mozilla/3.0 (compatible; Indy Library)

--Boundary
Content-ID: <metadata>
Content-Type: application/json
{"name":"Dest.txt", "file":{}, "@content.sourceUrl":"cid:content"}
--Boundary
Content-ID: <content>
Content-Type: application/octet-stream<SourceContent>--Boundary--

正如您所看到的，MIME数据全部搞砸了。具体来说，每个MIME字段都缺少一些必需的<CRLF><CRLF>。就像HTTP标头和正文一样，MIME标头和正文由CRLF序列分隔，TFileStream数据与其后的MIME边界之间需要TMemoryStream

请求需要看起来更像这样：

POST /v1.0/drive/root::/children HTTP/1.0
Content-Type: multipart/related; boundary="Boundary"
Content-Length: 260
Authorization: Bearer EwA...%3d
Host: api.onedrive.com
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Encoding: identity
User-Agent: Mozilla/3.0 (compatible; Indy Library)

--Boundary
Content-ID: <metadata>
Content-Type: application/json

{"name":"Dest.txt", "file":{}, "@content.sourceUrl":"cid:content"}
--Boundary
Content-ID: <content>
Content-Type: application/octet-stream

<SourceContent>
--Boundary--

尝试使用此代码填充MemoryStream := TMemoryStream.Create; try WriteLnString('--' + Boundary); WriteLnString('Content-ID: <metadata>'); WriteLnString('Content-Type: application/json'); WriteLnString(''); // <-- ADD THIS!!! WriteLnString('{"name":"Dest.txt", "file":{}, "@content.sourceUrl":"cid:content"}'); WriteLnString('--' + Boundary); WriteLnString('Content-ID: <content>'); WriteLnString('Content-Type: application/octet-stream'); // <-- REMOVE THE FALSE!!! WriteLnString(''); // <-- ADD THIS!!! FileStream := TFileStream.Create('Source.txt', fmOpenRead); try MemoryStream.CopyFrom(FileStream, 0); finally FileStream.Free; end; WriteLnString(''); // <!-- ADD THIS!!! WriteLnString('--' + Boundary + '--', False); ... finally MemoryStream.Free; end;：

TIdMultipartFormDataStream

话虽这么说，Indy有一个TIdHTTP课程，在发送multipart/form-data个帖子时通常会与multipart/form-data一起使用。 OneDrive不支持multipart/form-data，但奇怪的是，OneDrive的文档明确指出了以下内容，仅适用于multipart/related而不适用于name：

如果包含两个以上的部分，请求将被拒绝。 每个部分都必须在Content-Disposition标题中指定一个multipart/related值，表示它是的哪个部分。部件可以按任意顺序排列，但应首先指定元数据部件。

但是，同一文档中给出的示例使用multipart/form-data，就像您的代码一样。 Microsoft / OneDrive论坛和各种博客中有关于在上传到OneDrive时是使用multipart/related还是multipart/form-data的讨论。一位OneDrive员工确认此问题需要他们的一些工作。

以防万一OneDrive支持TIdMultipartFormDataStream，以下是使用procedure TSaveFilter.UploadTest; const URL = 'https://api.onedrive.com/v1.0/drive/root::/children'; var IdHTTP: TIdHTTP; PostData: TIdMultipartFormDataStream; begin IdHTTP := TIdHTTP.Create(nil); try IdHTTP.HandleRedirects := True; IdHTTP.IOHandler := TIdSSLIOHandlerSocketOpenSSL.Create(IdHTTP); IdHTTP.Request.BasicAuthentication := False; IdHTTP.Request.CustomHeaders.Values['Authorization'] := 'Bearer ' + FAccessToken; PostData := TIdMultipartFormDataStream.Create; try PostData.AddFormField('metadata', '{"name":"Dest.txt", "file":{}}', 'utf-8', 'application/json'); PostData.AddFile('content', 'Source.txt', 'application/octet-stream').FileName := ''; IdHTTP.Post(URL, PostData); finally PostData.Free; end; finally IdHTTP.Free; end; end;的示例：

order

Indy 10分段上传到OneDrive错误

1 个答案: