def parse_media_upload_finish_su_ter(data, rec_obj):
loss_pkg_list = []
name_len = data[13:14]
media_name = data[14:14 + big2num(byte2str(name_len))].split(
b'\x00')[0].decode('utf-8')
media_type = byte2str(data[-7:-6])
media_size = big2num(byte2str(data[-6:-2]))
quotient = media_size // 65536
remainder = media_size % 65536
log_event.debug('{} —————— 告警结束 ——————'.format(rec_obj.client_address))
log_event.debug('{} 文件名 {}'.format(rec_obj.client_address, media_name))
log_event.debug('{} 文件类型 {} '.format(rec_obj.client_address, media_type))
log_event.debug('{} 文件大小 {}'.format(rec_obj.client_address, media_size))
log_event.debug('{} —————— END ——————'.format(rec_obj.client_address))
filename_length = data[13:14]
file_name = data[14:14 + big2num(byte2str(filename_length))]
file_type = data[-7:-6]
offset_data = name_offset_data.get(media_name)
if offset_data:
# if len(offset_data) > 1:
# offset_data[0] = None
# offset_data[65536] = None
for x in offset_data.keys():
if not offset_data.get(x):
loss_pkg_list.append(x)
if not loss_pkg_list:
msg_body = byte2str(filename_length) + byte2str(
file_name) + byte2str(file_type) + '00' + '00'
for x in sorted(offset_data.keys()):
media_queue.put(offset_data.get(x))
name_offset_data.pop(media_name)
else:
loss_pkg = ''
loss_len = len(loss_pkg_list)
log_event.info("{} {} 多媒体数据丢包，丢包偏移量为 {}".format(
rec_obj.client_address, media_name, loss_pkg_list))
if quotient in loss_pkg_list:
loss_pkg_list.pop(quotient)
for x in loss_pkg_list:
loss_pkg += num2big(x, 4) + num2big(65536, 4)
loss_pkg += num2big(quotient, 4) + num2big(remainder, 4)
else:
for x in loss_pkg_list:
loss_pkg += num2big(x, 4) + num2big(65536, 4)
msg_body = byte2str(filename_length) + byte2str(
file_name) + byte2str(file_type) + '01' + num2big(loss_len,
1) + loss_pkg
else:
msg_body = byte2str(filename_length) + byte2str(file_name) + byte2str(
file_type) + '00' + '00'
body = '%s%s%s%s%s' % ('9212', num2big(int(
len(msg_body) / 2)), GlobalVar.DEVICEID,
num2big(GlobalVar.get_serial_no()), msg_body)
data = '%s%s%s%s' % ('7E', body, calc_check_code(body), '7E')
return data
def handle(self):
address, port = self.client_address
logger.debug('【 Video Server 】 Connected by {} {} ...'.format(address, port))
TCPRequestHandler.isAlive = True
logger.debug('【 Video Server 】 Producer Thread Start ...')
# send_thread = SendData('【 File Server 】 Send Thread Start ...', self)
# send_thread.setDaemon(True)
# send_thread.start()
while True:
try:
buf = b''
if self.remain:
self.remain = ParseData.produce_for_video(buf, self.remain, self)
try:
buf = self.request.recv(1024)
except TimeoutError:
log_event.debug('{} 【 Video Server 】 Receiving ack timeout，connection is interrupted.'.format(self.client_address))
except ConnectionResetError:
log_event.debug('{} 【 Video Server 】 ConnectionResetError，connection is interrupted.'.format(self.client_address))
except ConnectionAbortedError:
log_event.debug('{} 【 Video Server 】 ConnectionAbortedError，connection is interrupted.'.format(self.client_address))
except Exception as e:
log_event.error('!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!')
log_event.error(e)
except socket.timeout:
break
if not buf:
self.isAlive = False
time.sleep(0.3)
log_event.debug('{} 【 Video Server 】 Receive empty data，connection is interrupted.'.format(self.client_address))
break
self.remain = ParseData.produce_for_video(buf, self.remain, self)
time.sleep(0.001)
def parse_media_msg_upload_su_ter(data, rec_obj):
name_len = data[13:14]
media_name = data[14:14 + big2num(byte2str(name_len))].split(
b'\x00')[0].decode('utf-8')
media_type = byte2str(data[-7:-6])
media_size = big2num(byte2str(data[-6:-2]))
name_size[media_name] = media_size
quotient = media_size // 65536
name_offset_data[media_name] = dict(
zip([x * 65536 for x in range(quotient + 1)], [None] * quotient))
log_event.debug('{} —————— 文件信息上传 ——————'.format(rec_obj.client_address))
log_event.debug('{} 文件名 {}'.format(rec_obj.client_address, media_name))
log_event.debug('{} 文件类型 {}'.format(rec_obj.client_address, media_type))
log_event.debug('{} 文件大小 {}'.format(rec_obj.client_address, media_size))
log_event.debug('{} —————— END ——————'.format(rec_obj.client_address))
reply_data = comm_reply_su_ter(data, '00')
return reply_data
def parse_media_msg_upload_su_ter(data, rec_obj):
# 2019修改项
if conf.jt808_version == 2011:
msg_body = data[12:-1]
elif conf.jt808_version == 2019:
msg_body = data[17:-1]
name_len = msg_body[0:1]
media_name = msg_body[1:1 + big2num(byte2str(name_len))].split(
b'\x00')[0].decode('utf-8')
media_type = byte2str(msg_body[-5:-4])
media_size = big2num(byte2str(msg_body[-4:]))
name_size[media_name] = media_size
quotient = media_size // 65536
name_offset_data[media_name] = dict(
zip([x * 65536 for x in range(quotient + 1)], [None] * quotient))
log_event.debug('{} —————— 文件信息上传 ——————'.format(rec_obj.client_address))
log_event.debug('{} 文件名 {}'.format(rec_obj.client_address, media_name))
log_event.debug('{} 文件类型 {}'.format(rec_obj.client_address, media_type))
log_event.debug('{} 文件大小 {}'.format(rec_obj.client_address, media_size))
log_event.debug('{} —————— END ——————'.format(rec_obj.client_address))
reply_data = comm_reply_su_ter(data, '00')
return reply_data
def produce_for_file(buf, remain, rec_obj):
data = remain + buf
if data[0:1] == b'\x7e':
st_list = [m.start() for m in re.finditer(b"\x7e", data)]
if len(st_list) >= 2:
data_piece = data[:st_list[1] + 1]
data_piece = rec_translate(data_piece)
if byte2str(data_piece[-2:-1]) == calc_check_code(
byte2str(data_piece[1:-2])):
text = byte2str(data_piece)
text_hex = ' '.join(text[i:i + 2]
for i in range(0, len(text), 2))
log_event.debug(
'%s%s%s%s%s%s' % (rec_obj.client_address, " RECV DATA: ",
'lens: ', str(len(data_piece)).ljust(
5, ' '), ' data: || ', text_hex))
command = data_piece[1:3]
func = parse_type_su_ter_for_file.get(command)
if func:
reply = func(data_piece[1:-1], rec_obj)
data_bak = reply
text_hex = ' '.join(data_bak[i:i + 2]
for i in range(0, len(data_bak), 2))
log_event.debug(
'%s%s%s%s%s%s' %
(rec_obj.client_address, " SEND DATA: ", 'lens: ',
str(int(len(data_bak) / 2)).ljust(
5, ' '), ' data: || ', text_hex))
rec_obj.request.sendall(
send_translate(bytes.fromhex(reply)))
remain = data[st_list[1] + 1:]
else:
logger.error('校验码错误。')
logger.error(byte2str(data_piece))
else:
remain = data
elif data[0:4] == b'\x30\x31\x63\x64':
data_length = data[58:62]
if data_length:
if big2num(byte2str(data_length)) + 62 > len(data):
remain = data
else:
data_piece = data[:62 + big2num(byte2str(data_length))]
media_name = data_piece[4:54].split(b'\x00')[0].decode('utf-8')
offset = big2num(byte2str(data_piece[54:58]))
# logger.error(media_name)
name_offset_data.get(media_name)[offset] = data_piece
text = byte2str(data)[:100]
text_hex = ' '.join(text[i:i + 2]
for i in range(0, len(text), 2))
log_event.debug(
'%s%s%s%s%s%s' % (rec_obj.client_address, " RECV DATA: ",
'lens: ', str(len(data_piece)).ljust(
5, ' '), ' data: || ', text_hex))
remain = data[62 + big2num(byte2str(data_length)):]
else:
remain = data
else:
if len(data) >= 4:
logger.error('收到错误开头的报文。')
logger.error(byte2str(data))
else:
remain = data
return remain
def parse_alarm_attachment_msg_su_ter(data, rec_obj):
terminal_id = byte2str(data[13:20])
alarm_flag = byte2str(data[20:36])
alarm_num = data[36:68].decode('utf-8')
msg_type = byte2str(data[68:69])
attachment_num = big2num(byte2str(data[69:70]))
log_event.debug('{} —————— 报警附件信息 ——————'.format(rec_obj.client_address))
log_event.debug('{} 终端ID {}'.format(rec_obj.client_address, terminal_id))
log_event.debug('{} 报警标识号 {}'.format(rec_obj.client_address, alarm_flag))
log_event.debug('{} 报警编号 {}'.format(rec_obj.client_address, alarm_num))
log_event.debug('{} 信息类型 {}'.format(rec_obj.client_address, msg_type))
log_event.debug('{} 附件数量 {}'.format(rec_obj.client_address,
attachment_num))
attachment_data = data[70:-2]
while len(attachment_data):
name_len = big2num(byte2str(attachment_data[0:1]))
log_event.debug('{} 文件名称长度 {}'.format(rec_obj.client_address,
name_len))
name = attachment_data[1:1 + name_len].decode('utf-8')
log_event.debug('{} 文件名称 {}'.format(rec_obj.client_address, name))
file_size = big2num(
byte2str(attachment_data[1 + name_len:1 + name_len + 4]))
log_event.debug('{} 文件大小 {}'.format(rec_obj.client_address, file_size))
attachment_data = attachment_data[1 + name_len + 4:]
log_event.debug('{} —————— END ——————'.format(rec_obj.client_address))
reply_data = comm_reply_su_ter(data, '00')
return reply_data
def finish(self):
address, port = self.client_address
log_event.debug('{} 【 Video Server 】 Connection {} {} is disconnected.'.format(self.client_address, address, port))
log_event.debug('-'*100)
def parse_alarm_attachment_msg_su_ter(data, rec_obj):
# 2019修改项
if conf.jt808_version == 2011:
msg_body = data[12:-1]
elif conf.jt808_version == 2019:
msg_body = data[17:-1]
terminal_id = byte2str(msg_body[0:7])
alarm_flag = byte2str(msg_body[7:23])
alarm_num = msg_body[23:55].decode('utf-8')
msg_type = byte2str(msg_body[55:56])
attachment_num = big2num(byte2str(msg_body[56:57]))
log_event.debug('{} —————— 报警附件信息 ——————'.format(rec_obj.client_address))
log_event.debug('{} 终端ID {}'.format(rec_obj.client_address, terminal_id))
log_event.debug('{} 报警标识号 {}'.format(rec_obj.client_address, alarm_flag))
log_event.debug('{} 报警编号 {}'.format(rec_obj.client_address, alarm_num))
log_event.debug('{} 信息类型 {}'.format(rec_obj.client_address, msg_type))
log_event.debug('{} 附件数量 {}'.format(rec_obj.client_address,
attachment_num))
attachment_data = msg_body[57:]
while len(attachment_data):
name_len = big2num(byte2str(attachment_data[0:1]))
log_event.debug('{} 文件名称长度 {}'.format(rec_obj.client_address,
name_len))
name = attachment_data[1:1 + name_len].decode('utf-8')
log_event.debug('{} 文件名称 {}'.format(rec_obj.client_address, name))
file_size = big2num(
byte2str(attachment_data[1 + name_len:1 + name_len + 4]))
log_event.debug('{} 文件大小 {}'.format(rec_obj.client_address, file_size))
attachment_data = attachment_data[1 + name_len + 4:]
log_event.debug('{} —————— END ——————'.format(rec_obj.client_address))
reply_data = comm_reply_su_ter(data, '00')
return reply_data
