Indy 10 + XE8 长文件名分段上传
Indy 10 + XE8 multipart upload with long filename
我正在尝试 multipart upload to Box.com 使用 TIdMultipartFormDataStream。虽然文件名最多为 '\u0424\u042B\u0412\u0410\u041F.txt' 它工作正常,但是当它更长时 ('\u0424\u042B\u0412\u0410\u041F\u0420.txt') 它会导致 'HTTP/1.1 400 Bad Request'.
FormField.FFieldValue长度有限制吗?如果是这样,有什么办法可以绕过它吗?
procedure TBoxComSaveFilter.UploadTest;
const
URL = 'https://upload.box.com/api/2.0/files/content';
var
IdHTTP: TIdHTTP;
MD: 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;
MD := TIdMultipartFormDataStream.Create;
try
MD.AddFormField('metadata', '{"name": "' +
'\u0424\u042B\u0412\u0410\u041F.txt' + // => OK
// '\u0424\u042B\u0412\u0410\u041F\u0420.txt' + // => 400 Bad Request
'", "parent": {"id": "0"}}', '', 'application/json');
MD.AddFile('content', 'source.txt', 'application/octet-stream');
IdHTTP.Post(URL, MD);
finally
MD.Free;
end;
finally
IdHTTP.Free;
end;
end;
短文件名的部分日志:
Sent 20.02.2017 21:16:26: ----------022017211625520
Content-Disposition: form-data; name="metadata"
Content-Type: application/json
Content-Transfer-Encoding: quoted-printable
{"name": "\u0424\u042B\u0412\u0410\u041F.txt", "parent": {"id": "0"}}
----------022017211625520
长文件名的相同部分:
Sent 20.02.2017 21:17:48: ----------022017211748412
Content-Disposition: form-data; name="metadata"
Content-Type: application/json
Content-Transfer-Encoding: quoted-printable
{"name": "\u0424\u042B\u0412\u0410\u041F\u0420.txt", "parent": {"id": =
"0"}}
----------022017211748412
我可以看到数据在 70 字节后被“=CRLF”分割。
文本字段的默认传输编码是 MIME 的 quoted-printable
格式。 Box 似乎不喜欢这种格式。
AddFormField()
returns一个TIdFormDataField
,里面有一个ContentTransfer
属性你可以设置成8bit
或者binary
发送JSON文本as-is(字符集编码为字节后,即):
MD.AddFormField('metadata', '{"name": "ФЫВАПР.txt", "parent": {"id": "0"}}', 'utf-8', 'application/json').ContentTransfer := '8bit';
或者,将您的 JSON 放在 TStream
中,例如 TStringStream
或 TMemoryStream
,然后使用 [=13= 的 TStream
重载],默认情况下将 ContentTransfer
设置为 binary
:
JsonStream := TStringStream.Create('{"name": "ФЫВАПР.txt", "parent": {"id": "0"}}', TEncoding.UTF8);
try
MD.AddFormField('metadata', 'application/json', 'utf-8', JsonStream);
// send the post...
finally
JsonStream.Free;
end;
我正在尝试 multipart upload to Box.com 使用 TIdMultipartFormDataStream。虽然文件名最多为 '\u0424\u042B\u0412\u0410\u041F.txt' 它工作正常,但是当它更长时 ('\u0424\u042B\u0412\u0410\u041F\u0420.txt') 它会导致 'HTTP/1.1 400 Bad Request'.
FormField.FFieldValue长度有限制吗?如果是这样,有什么办法可以绕过它吗?
procedure TBoxComSaveFilter.UploadTest;
const
URL = 'https://upload.box.com/api/2.0/files/content';
var
IdHTTP: TIdHTTP;
MD: 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;
MD := TIdMultipartFormDataStream.Create;
try
MD.AddFormField('metadata', '{"name": "' +
'\u0424\u042B\u0412\u0410\u041F.txt' + // => OK
// '\u0424\u042B\u0412\u0410\u041F\u0420.txt' + // => 400 Bad Request
'", "parent": {"id": "0"}}', '', 'application/json');
MD.AddFile('content', 'source.txt', 'application/octet-stream');
IdHTTP.Post(URL, MD);
finally
MD.Free;
end;
finally
IdHTTP.Free;
end;
end;
短文件名的部分日志:
Sent 20.02.2017 21:16:26: ----------022017211625520
Content-Disposition: form-data; name="metadata"
Content-Type: application/json
Content-Transfer-Encoding: quoted-printable
{"name": "\u0424\u042B\u0412\u0410\u041F.txt", "parent": {"id": "0"}}
----------022017211625520
长文件名的相同部分:
Sent 20.02.2017 21:17:48: ----------022017211748412
Content-Disposition: form-data; name="metadata"
Content-Type: application/json
Content-Transfer-Encoding: quoted-printable
{"name": "\u0424\u042B\u0412\u0410\u041F\u0420.txt", "parent": {"id": =
"0"}}
----------022017211748412
我可以看到数据在 70 字节后被“=CRLF”分割。
文本字段的默认传输编码是 MIME 的 quoted-printable
格式。 Box 似乎不喜欢这种格式。
AddFormField()
returns一个TIdFormDataField
,里面有一个ContentTransfer
属性你可以设置成8bit
或者binary
发送JSON文本as-is(字符集编码为字节后,即):
MD.AddFormField('metadata', '{"name": "ФЫВАПР.txt", "parent": {"id": "0"}}', 'utf-8', 'application/json').ContentTransfer := '8bit';
或者,将您的 JSON 放在 TStream
中,例如 TStringStream
或 TMemoryStream
,然后使用 [=13= 的 TStream
重载],默认情况下将 ContentTransfer
设置为 binary
:
JsonStream := TStringStream.Create('{"name": "ФЫВАПР.txt", "parent": {"id": "0"}}', TEncoding.UTF8);
try
MD.AddFormField('metadata', 'application/json', 'utf-8', JsonStream);
// send the post...
finally
JsonStream.Free;
end;