def verify_share_password(uk, shareid, pwd, vcode='<STR_LIT>'):
url = '<STR_LIT>'.join([<EOL>const.PAN_URL,<EOL>'<STR_LIT>',<EOL>'<STR_LIT>', shareid,<EOL>'<STR_LIT>', uk,<EOL>])<EOL>data = '<STR_LIT>'.format(pwd, vcode)<EOL>req = net.urlopen(url, data=data.encode())<EOL>if req:<EOL><INDENT>content = req.data.decode()<EOL>info = json.loads(content)<EOL>errno = info.get('<STR_LIT>', <NUM_LIT:1>)<EOL>if errno == <NUM_LIT:0>:<EOL><INDENT>return req.headers.get_all('<STR_LIT>')<EOL><DEDENT>elif errno in (-<NUM_LIT>, -<NUM_LIT>, -<NUM_LIT>):<EOL><INDENT>pass  <EOL><DEDENT><DEDENT>return None<EOL>
验证共享文件的密码.

    如果密码正确, 会在返回的请求头里加入一个cookie: BDCLND

    pwd - 四位的明文密码
    vcode - 验证码; 目前还不支持