Question

我想使用OpenSubtitles API为电影下载字幕，但无法在任何地方找到完整的工作示例。我发现的只有这个：

http://www.yanniel.info/2012/01/open-subtitles-api-in-delphi.html

我做了所说的所有事情，但它不完整。我登录并找到一个副标题，但不知道如何最终下载文件？

编辑：这是我到目前为止所做的;

unit OpensubtitlesAPI;

interface

uses
  IdHTTP, Classes, SysUtils;

  function LogIn(aUsername, aPassword,
                 aLanguage, aUserAgent: string): string;
  function LogOut(aToken: string): string;
  function SearchSubtitles(aToken, aSublanguageID,
                           aMovieHash: string;
                           aMovieByteSize: Cardinal): string;  overload;
  function SearchSubtitles(aToken, aSublanguageID: string;
                           aImdbID: Cardinal): string; overload;
  function SearchSubtitles(aToken, aSublanguageID,
                           aQuery: string): string;  overload;

implementation

function XML_RPC(aRPCRequest: string): string;
const
  cURL= 'http://api.opensubtitles.org/xml-rpc';
var
  lHTTP: TIdHTTP;
  Source,
  ResponseContent: TStringStream;
begin
  lHTTP := TIdHTTP.Create(nil);
  lHTTP.Request.ContentType := 'text/xml';
  lHTTP.Request.Accept := '*/*';
  lHTTP.Request.Connection := 'Keep-Alive';
  lHTTP.Request.Method := 'POST';
  lHTTP.Request.UserAgent := 'OS Test User Agent';
  Source := TStringStream.Create(aRPCRequest);
  ResponseContent:= TStringStream.Create;
  try
    try
      lHTTP.Post(cURL, Source, ResponseContent);
      Result:= ResponseContent.DataString;
    except
      Result:= '';
    end;
  finally
    lHTTP.Free;
    Source.Free;
    ResponseContent.Free;
  end;
end;

function LogIn(aUsername, aPassword, aLanguage, aUserAgent: string): string;
const
  LOG_IN = '<?xml version="1.0"?>' +
           '<methodCall>' +
           '  <methodName>LogIn</methodName>' +
           '  <params>'   +
           '    <param>'  +
           '      <value><string>%0:s</string></value>' +
           '    </param>' +
           '    <param>'  +
           '      <value><string>%1:s</string></value>' +
           '    </param>' +
           '    <param>'  +
           '      <value><string>%2:s</string></value>' +
           '    </param>' +
           '    <param>'  +
           '      <value><string>%3:s</string></value>' +
           '    </param>' +
           '  </params>'  +
           '</methodCall>';
begin
  //TODO: XML Encoding
  Result:= XML_RPC(Format(LOG_IN, [aUsername, aPassword, aLanguage, aUserAgent]));
end;

function LogOut(aToken: string): string;
const
  LOG_OUT = '<?xml version="1.0"?>' +
           '<methodCall>' +
           '  <methodName>LogOut</methodName>' +
           '  <params>'   +
           '    <param>'  +
           '      <value><string>%0:s</string></value>' +
           '    </param>' +
           '  </params>'  +
           '</methodCall>';
begin
  //TODO: XML Encoding
  Result:= XML_RPC(Format(LOG_OUT, [aToken]));
end;

function SearchSubtitles(aToken, aSublanguageID, aMovieHash: string; aMovieByteSize: Cardinal): string;
const
  SEARCH_SUBTITLES = '<?xml version="1.0"?>' +
                     '<methodCall>' +
                     '  <methodName>SearchSubtitles</methodName>' +
                     '  <params>' +
                     '    <param>' +
                     '      <value><string>%0:s</string></value>' +
                     '    </param>' +
                     '  <param>' +
                     '   <value>' +
                     '    <array>' +
                     '     <data>' +
                     '      <value>' +
                     '       <struct>' +
                     '        <member>' +
                     '         <name>sublanguageid</name>' +
                     '         <value><string>%1:s</string>' +
                     '         </value>' +
                     '        </member>' +
                     '        <member>' +
                     '         <name>moviehash</name>' +
                     '         <value><string>%2:s</string></value>' +
                     '        </member>' +
                     '        <member>' +
                     '         <name>moviebytesize</name>' +
                     '         <value><double>%3:d</double></value>' +
                     '        </member>' +
                     '       </struct>' +
                     '      </value>' +
                     '     </data>' +
                     '    </array>' +
                     '   </value>' +
                     '  </param>' +
                     ' </params>' +
                     '</methodCall>';

begin
  //TODO: XML Encoding
  Result:= XML_RPC(Format(SEARCH_SUBTITLES, [aToken, aSublanguageID, aMovieHash, aMovieByteSize]));
end;

function SearchSubtitles(aToken, aSublanguageID: string;
  aImdbID: Cardinal): string;
const
  SEARCH_SUBTITLES = '<?xml version="1.0"?>' +
                     '<methodCall>' +
                     '  <methodName>SearchSubtitles</methodName>' +
                     '  <params>' +
                     '    <param>' +
                     '      <value><string>%0:s</string></value>' +
                     '    </param>' +
                     '  <param>' +
                     '   <value>' +
                     '    <array>' +
                     '     <data>' +
                     '      <value>' +
                     '       <struct>' +
                     '        <member>' +
                     '         <name>sublanguageid</name>' +
                     '         <value><string>%1:s</string>' +
                     '         </value>' +
                     '        </member>' +
                     '        <member>' +
                     '         <name>imdbid</name>' +
                     '         <value><string>%2:d</string></value>' +
                     '        </member>' +
                     '       </struct>' +
                     '      </value>' +
                     '     </data>' +
                     '    </array>' +
                     '   </value>' +
                     '  </param>' +
                     ' </params>' +
                     '</methodCall>';

begin
  //TODO: XML Encoding
  Result:= XML_RPC(Format(SEARCH_SUBTITLES, [aToken, aSublanguageID, aImdbID]));
end;

function SearchSubtitles(aToken, aSublanguageID,
  aQuery: string): string;
const
  SEARCH_SUBTITLES = '<?xml version="1.0"?>' +
                     '<methodCall>' +
                     '  <methodName>SearchSubtitles</methodName>' +
                     '  <params>' +
                     '    <param>' +
                     '      <value><string>%0:s</string></value>' +
                     '    </param>' +
                     '  <param>' +
                     '   <value>' +
                     '    <array>' +
                     '     <data>' +
                     '      <value>' +
                     '       <struct>' +
                     '        <member>' +
                     '         <name>sublanguageid</name>' +
                     '         <value><string>%1:s</string>' +
                     '         </value>' +
                     '        </member>' +
                     '        <member>' +
                     '         <name>query</name>' +
                     '         <value><string>%2:s</string></value>' +
                     '        </member>' +
                     '       </struct>' +
                     '      </value>' +
                     '     </data>' +
                     '    </array>' +
                     '   </value>' +
                     '  </param>' +
                     ' </params>' +
                     '</methodCall>';

begin
  //TODO: XML Encoding
  Result:= XML_RPC(Format(SEARCH_SUBTITLES, [aToken, aSublanguageID, aQuery]));
end;
end.

最后，我使用C ++ Builder做下一步：

void __fastcall TForm1::Button1Click(TObject *Sender)
{
    UnicodeString response = LogIn("", "", "en", "OS Test User Agent");
    XMLDocument1->XML->Text = response;
    XMLDocument1->Active = true;
    UnicodeString token = XMLDocument1->ChildNodes->Nodes[1]->GetChildNodes()->Nodes[0]->
                  GetChildNodes()->Nodes[0]->GetChildNodes()->Nodes[0]->
                  GetChildNodes()->Nodes[0]->GetChildNodes()->Nodes[0]->
                  GetChildNodes()->Nodes[1]->GetChildNodes()->Nodes[0]->
                  GetText();
    Memo1->Text = SearchSubtitles(token, "en", "7d9cd5def91c9432", 735934464);
    LogOut(token);
}

当我执行此操作时，我得到这样的回复：

<?xml version="1.0" encoding="utf-8"?>
<methodResponse>
<params>
 <param>
  <value>
   <struct>
    <member>
     <name>status</name>
     <value>
      <string>200 OK</string>
     </value>
    </member>
    <member>
     <name>data</name>
     <value>
      <boolean>0</boolean>
     </value>
    </member>
    <member>
     <name>seconds</name>
     <value>
      <double>0.008</double>
     </value>
    </member>
   </struct>
  </value>
 </param>
</params>
</methodResponse>

那么，下一步是什么？如何获取文件（字幕）位置？感谢。

Answer 1

错误是：OpenSubtitles需要包含3个字符的国家/地区代码（“eng”代替“en”）。

从Delphi或C ++ Builder中的OpenSubtitles下载字幕？

1 个答案: