def unpack(buf):
if len(buf) < 16: #包头不完整
return (UNPACK_CONTINUE, b'')
else:
#解析包头
header = buf[:16]
(len_ack, cmd_id_ack, seq_id_ack) = struct.unpack('>I4xII', header)
logger.info('收到新的封包,长度:{},cmd_id:{},seq_id:0x{:x}'.format(
len_ack, cmd_id_ack, seq_id_ack))
#包长合法性验证
if len(buf) < len_ack: #包体不完整
return (UNPACK_CONTINUE, b'')
else:
if CMDID_PUSH_ACK == cmd_id_ack and PUSH_SEQ == seq_id_ack: #推送通知:服务器有新消息
#尝试获取sync key
sync_key = Util.get_sync_key()
if sync_key: #sync key存在
interface.new_sync() #使用newsync同步消息
longlink.send(
pack(CMDID_REPORT_KV_REQ,
business.sync_done_req2buf())) #通知服务器消息已接收
else: #sync key不存在
interface.new_init() #使用短链接newinit初始化sync key
else:
cmd_id = cmd_id_ack - 1000000000
if CMDID_NOOP_REQ == cmd_id: #心跳响应
logger.info('心跳返回:{}'.format(Util.b2hex(buf)))
pass
elif CMDID_MANUALAUTH_REQ == cmd_id: #登录响应
if business.login_buf2Resp(buf[16:len_ack], login_aes_key):
raise RuntimeError('登录失败!') #登录失败
return (UNPACK_OK, buf[len_ack:])
return (UNPACK_OK, b'')
def Login(name, password):
#组包
(senddata, login_aes_key) = business.login_req2buf(name, password)
#发包
ret_bytes = Util.mmPost('/cgi-bin/micromsg-bin/manualauth', senddata)
logger.debug('返回数据:' + str(ret_bytes))
#解包
return business.login_buf2Resp(ret_bytes, login_aes_key)