def cloud_query_sinfo(cookie, tokens, source_path):
url = '<STR_LIT>'.join([<EOL>const.PAN_URL,<EOL>'<STR_LIT>',<EOL>'<STR_LIT>',<EOL>'<STR_LIT>', tokens['<STR_LIT>'],<EOL>'<STR_LIT>', encoder.encode_uri_component(source_path),<EOL>'<STR_LIT>',<EOL>'<STR_LIT>', util.timestamp(),<EOL>])<EOL>req = net.urlopen(url, headers={'<STR_LIT>': cookie.header_output()})<EOL>if req:<EOL><INDENT>content = req.data<EOL>return json.loads(content.decode())<EOL><DEDENT>else:<EOL><INDENT>return None<EOL><DEDENT>
获取网盘中种子的信息, 比如里面的文件名, 文件大小等.

    source_path - BT种子的绝对路径.