added test case and fixed incomplete data
This commit is contained in:
Arturo Hernandez
parent
ff7b4902c2
commit
46560b4511
67
test.py
67
test.py
@ -202,6 +202,73 @@ class PYZKTest(unittest.TestCase):
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self.assertEqual(usu.name, "NN-831", "incorrect uid %s" % usu.name) # generated
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conn.disconnect()
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@patch('zk.base.socket')
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@patch('zk.base.ZK_helper')
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def test_tcp_get_users_broken_tcp(self, helper, socket):
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""" tst case for https://github.com/fananimi/pyzk/pull/18#issuecomment-406250746 """
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helper.return_value.test_ping.return_value = True # ping simulated
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helper.return_value.test_tcp.return_value = 0 # helper tcp ok
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socket.return_value.recv.side_effect = [
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codecs.decode('5050827d09000000d007babb5c3c100009', 'hex'), # tcp CMD_ACK_OK
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codecs.decode('5050827d58000000d007292c5c3c13000000000000000000000000000000000046000000000000004600000000000000990c0000000000001a010000000000000600000006000000f4010000f401000050c30000ae010000ae010000b7b60000', 'hex'), #sizes
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codecs.decode('5050827d15000000d007a7625c3c150000b4130000b4130000cdef2300','hex'), #PREPARE_BUFFER -> OK 5044
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codecs.decode('5050827d10000000dc050da65c3c1600b4130000f0030000', 'hex'), # read_buffer -> Prepare_data 5044
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codecs.decode('5050827df8030000dd05d05800001600b013000001000e35313437393833004a6573757353616c646976617200000000000000000000000000000001000000000000000035313437393833000000000000000000000000000000000002000e33343934383636004e69657665734c6f70657a00000000000000000000000000000000000100000000000000003334393438363600000000000000000000000000000000000300000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000003337333139333600000000000000000000000000', 'hex'), # DATA 1016 -8 (util 216)
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codecs.decode('0000000100000000000000003734383433330000000000000000000000000000000000000800000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000003433333939353800000000000000000000000000000000000900000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000003333373335313100000000000000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000003337373535363100000000000000000000000000000000000b000000', 'hex'), # raw data 256
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codecs.decode('0000000004000e00000000000000000000000000000000000000000000000000000000000000000000000001000000000000000032333338323035000000000000000000000000000000000005000e000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000333632363439300000000000000000000000000000000000060000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000313838343633340000000000000000000000000000000000070000000000000000000000000000000000000000000000000000000000000000000000', 'hex'), #raw data 256
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codecs.decode('00000000000000000000000000000000000000000000000000000000000000000000000100000000000000003131313336333200000000000000000000000000000000000c00000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000003130353233383900000000000000000000000000000000000d00000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000003135333538333600000000000000000000000000000000000e00000000000000000000000000000000000000000000000000000000000000000000000000000100000000', 'hex'), #raw data 256
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codecs.decode('000000003933313637300000000000000000000000000000', 'hex'), #raw data 24
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codecs.decode('5050827df8030000dd0520b601001600000000000f00003334323931343800000000000000000000000000000000000000000000000000000000000100000000000000003334323931343800000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000003139303636393700000000000000000000000000000000001100000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000003139333831333500000000000000000000000000', 'hex'), # DATA 1016 -8 (util216
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codecs.decode('00000000120000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000393231303537000000000000000000000000000000000000130000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000333634383739340000000000000000000000000000000000140000323831353732000000000000000000000000000000000000000000000000000000000000010000000000000000323831353732000000000000000000000000000000000000150000000000000000000000000000000000000000000000000000000000000000000000', 'hex'), #raw data 256
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codecs.decode('00000001000000000000000031383133323236000000000000000000000000000000000016000000000000000000000000000000000000000000000000000000000000000000000000000001000000000000000035393037353800000000000000000000000000000000000017000000000000000000000000000000000000000000000000000000000000000000000000000001000000000000000031363933373232000000000000000000000000000000000018000000000000000000000000000000000000000000000000000000000000000000000000000001000000000000000033363430323131000000000000000000000000000000000019000000', 'hex'), #raw data 256
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codecs.decode('00000000000000000000000000000000000000000000000000000000000000000000000100000000000000003331303733390000000000000000000000000000000000001a00000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000003433353430393400000000000000000000000000000000001b00000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000003338303736333200000000000000000000000000000000001c00000000000000000000000000000000000000000000000000000000000000000000000000000100000000', 'hex'), #raw data 256
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codecs.decode('000000003231333938313700000000000000000000000000', 'hex'), #raw data 24
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codecs.decode('5050827df8030000dd059a2102001600000000001d00000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000003333383738313900000000000000000000000000000000001e00000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000003439353634363800000000000000000000000000000000001f00000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000003832343030300000000000000000000000000000', 'hex'), #DATA 1016 -8 (util 216)
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codecs.decode('00000000200000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000333937373437370000000000000000000000000000000000210000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000343435383038340000000000000000000000000000000000220000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000343430353130390000000000000000000000000000000000230000000000000000000000000000000000000000000000000000000000000000000000', 'hex'), #raw data 256
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codecs.decode('00000001000000000000000033353732363931000000000000000000000000000000000024000000000000000000000000000000000000000000000000000000000000000000000000000001000000000000000033363336333832000000000000000000000000000000000025000000000000000000000000000000000000000000000000000000000000000000000000000001000000000000000033333232353432000000000000000000000000000000000026000000000000000000000000000000000000000000000000000000000000000000000000000001000000000000000039393437303800000000000000000000000000000000000027000000', 'hex'), #raw data 256
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codecs.decode('00000000000000000000000000000000000000000000000000000000000000000000000100000000000000003836333539380000000000000000000000000000000000002800000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000003338383736383000000000000000000000000000000000002900000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000003739393434350000000000000000000000000000000000002a00000000000000000000000000000000000000000000000000000000000000000000000000000100000000', 'hex'), # raw data 256
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codecs.decode('000000003532313136340000000000000000000000000000', 'hex'), # raw data 24
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codecs.decode('5050827df8030000dd053da903001600000000002b00000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000003439373033323400000000000000000000000000000000002c0000000000000000000000000000000000000000000000000000000000000000000000', 'hex'), # DATA 1016 -8 (util 112)
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codecs.decode('0000000100000000000000003134363732353100000000000000000000000000000000002d000e32363635373336006d61726368756b0000000000000000000000000000000000000000000100000000000000003236363537333600000000000000000000000000', 'hex'), # raw data 104
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codecs.decode('000000002e00000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000003136383133353200000000000000000000000000000000002f000000000000000000000000000000000000000000000000000000000000000000000000000001000000000000000034393633363732000000000000000000000000000000000030000000', 'hex'), # raw data 152
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codecs.decode('00000000000000000000000000000000000000000000000000000000000000000000000100000000000000003337363137373100000000000000000000000000000000003100000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000003231353939353100000000000000000000000000000000003200000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000003136393734323700000000000000000000000000000000003300000000000000000000000000000000000000000000000000000000000000000000000000000100000000', 'hex'), # raw data 256
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codecs.decode('0000000033373336323437000000000000000000000000000000000034000000000000000000000000000000000000000000000000000000000000000000000000000001000000000000000031323930313635000000000000000000000000000000000035000000000000000000000000000000000000000000000000000000', 'hex'), # raw data 128
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codecs.decode('0000000000000000000000010000000000000000333236333636330000000000000000000000000000000000360000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000393031353036000000000000000000000000000000000000370000000000000000000000', 'hex'), # raw data 128
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codecs.decode('0000000000000000000000000000000000000000000000000000000100000000000000003238313732393300000000000000000000000000000000003800000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000003437303630333800000000000000000000000000', 'hex'), # raw data 128
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codecs.decode('5050827df8030000dd05037d04001600000000003900000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000003136343731353600000000000000000000000000000000003a0000000000000000000000000000000000000000000000000000000000000000000000', 'hex'), # DATA 1016 -8 (util 112)
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codecs.decode('0000000100000000000000003530313435310000000000000000000000000000000000003b00000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000003534363236373300000000000000000000000000000000003c00000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000003533363730310000000000000000000000000000000000003d00000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000003435383033303700000000000000000000000000000000003e000000', 'hex'), # raw data 256
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codecs.decode('00000000000000000000000000000000000000000000000000000000000000000000000100000000000000003136333835333200000000000000000000000000000000003f000e3336323634313900000000000000000000000000000000000000000000000000000000000100000000000000003336323634313900000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000003233323331383500000000000000000000000000000000004100000000000000000000000000000000000000000000000000000000000000000000000000000100000000', 'hex'), # raw data 256
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codecs.decode('0000000035323930373337000000000000000000000000000000000042000000000000000000000000000000000000000000000000000000000000000000000000000001000000000000000033393839303636000000000000000000000000000000000043000000000000000000000000000000000000000000000000000000', 'hex'), # raw data 128
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codecs.decode('0000000000000000000000010000000000000000343033323930390000000000000000000000000000000000440000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000323034363338380000000000000000000000000000000000450000000000000000000000', 'hex'), # raw data 128
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codecs.decode('0000000000000000000000000000000000000000000000000000000100000000000000003733383730330000000000000000000000000000000000004600000000000000000000000000000000000000000000000000000000000000000000000000000100000000000000003239313836333600000000000000000000000000', 'hex'), # raw data 128
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codecs.decode('5050827d0c000000dd0507fa0500160000000000', 'hex'), # DATA 12-8 (util 4 ok) and ACK OK!!!
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codecs.decode('5050827d08000000d00745b2cf451b00', 'hex'), # CMD_ACK_OK for get_users TODO: generate proper sequenced response
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codecs.decode('5050827d08000000d00745b2cf451b00', 'hex'), # CMD_ACK_OK for free_data TODO: generate proper sequenced response
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codecs.decode('5050827d08000000d00745b2cf451b00', 'hex'), # CMD_ACK_OK for exit TODO: generate proper sequenced response
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]
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#begin
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zk = ZK('192.168.1.201') # , verbose=True)
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conn = zk.connect()
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socket.return_value.send.assert_called_with(codecs.decode('5050827d08000000e80317fc00000000', 'hex'))
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users = conn.get_users()
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#print (users) #debug
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socket.return_value.send.assert_called_with(codecs.decode('5050827d08000000de05aebd5c3c1700', 'hex')) #get users
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self.assertEqual(len(users), 70, "incorrect size %s" % len(users))
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#assert one user
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usu = users[1]
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self.assertIsInstance(usu.uid, int, "uid should be int() %s" % type(usu.uid))
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self.assertIsInstance(usu.user_id, (str, unicode), "user_id should be str() or unicode() %s" % type(usu.user_id))
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self.assertEqual(usu.uid, 2, "incorrect uid %s" % usu.uid)
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self.assertEqual(usu.user_id, "3494866", "incorrect user_id %s" % usu.user_id)
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self.assertEqual(usu.name, "NievesLopez", "incorrect uid %s" % usu.name) # check test case
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conn.disconnect()
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@patch('zk.base.socket')
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@patch('zk.base.ZK_helper')
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def _test_tcp_get_template(self, helper, socket):
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206
zk/base.py
206
zk/base.py
@ -958,88 +958,6 @@ class ZK(object):
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else:
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if self.verbose: print ("can't read/find finger")
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return None
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#-----------------------------------------------------------------
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if not cmd_response.get('status'):
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return None #("can't get user template")
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#else
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if cmd_response.get('code') == const.CMD_DATA: # less than 1024!!!
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resp = self.__data[:-1]
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if self.tcp:
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if resp[-6:] == b'\x00\x00\x00\x00\x00\x00': # padding? bug?
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resp = resp[:-6]
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if self.verbose: print("tcp too small!")
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return Finger(uid, temp_id, 1, resp)
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if cmd_response.get('code') == const.CMD_PREPARE_DATA:
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data = []
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bytes = self.__get_data_size() #TODO: check with size
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size = bytes
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if self.tcp:
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data_recv = self.__sock.recv(bytes + 32)
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tcp_length = self.__test_tcp_top(data_recv)
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if tcp_length == 0:
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print ("Incorrect tcp packet")
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return None
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recieved = len(data_recv)
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if self.verbose: print ("recieved {}, size {} rec {}".format(recieved, size, data_recv.encode('hex'))) #todo python3
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tcp_length = unpack('<HHI', data_recv[:8])[2] #bytes+8
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if tcp_length < (bytes + 8):
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if self.verbose: print ("request chunk too big!")
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response = unpack('HHHH', data_recv[8:16])[0]
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if recieved >= (bytes + 32): #complete
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if response == const.CMD_DATA:
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resp = data_recv[16:bytes+16][:size-1] # no ack?
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if resp[-6:] == b'\x00\x00\x00\x00\x00\x00': # padding? bug?
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if self.verbose: print ("cutting from",len(resp))
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resp = resp[:-6]
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if self.verbose: print ("resp len1", len(resp))
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return Finger(uid, temp_id, 1, resp) #mistery
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else:
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if self.verbose: print("broken packet!!!")
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return None #broken
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else: # incomplete
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if self.verbose: print ("try incomplete")
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data.append(data_recv[16:]) # w/o tcp and header
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bytes -= recieved-16
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while bytes>0: #jic
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data_recv = self.__sock.recv(bytes) #ideal limit?
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recieved = len(data_recv)
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if self.verbose: print ("partial recv {}".format(recieved))
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data.append(data_recv) # w/o tcp and header
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bytes -= recieved
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data_recv = self.__sock.recv(16)
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response = unpack('<4H', data_recv[8:16])[0]
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if response == const.CMD_ACK_OK:
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resp = b''.join(data)[:size-1] # testing
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if resp[-6:] == b'\x00\x00\x00\x00\x00\x00':
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resp = resp[:-6]
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if self.verbose: print ("resp len2", len(resp))
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return Finger(uid, temp_id, 1, resp)
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#data_recv[bytes+16:].encode('hex') #included CMD_ACK_OK
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if self.verbose: print("bad response %s" % data_recv)
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if self.verbose: print(data)
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return None
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#else udp
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size = bytes
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while True: #limitado por respuesta no por tamaño
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data_recv = self.__sock.recv(response_size)
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response = unpack('<4H', data_recv[:8])[0]
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if self.verbose: print("# packet response is: {}".format(response))
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if response == const.CMD_DATA:
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data.append(data_recv[8:]) #header turncated
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bytes -= 1024
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elif response == const.CMD_ACK_OK:
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break #without problem.
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else:
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#truncado! continuar?
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if self.verbose: print("broken!")
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break
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if self.verbose: print("still needs %s" % bytes)
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data = b''.join(data)[:-1]
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if data[-6:] == b'\x00\x00\x00\x00\x00\x00': # padding? bug?
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data = data[:-6]
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#uid 32 fing 03, starts with 4d-9b-53-53-32-31
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#CMD_USERTEMP_RRQ desn't need [:-1]
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return Finger(uid, temp_id, 1, data)
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def get_templates(self):
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""" return array of all fingers """
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@ -1073,7 +991,7 @@ class ZK(object):
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users = []
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max_uid = 0
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userdata, size = self.read_with_buffer(const.CMD_USERTEMP_RRQ, const.FCT_USER)
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if self.verbose: print("user size %i" % size)
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if self.verbose: print("user size {} (= {})".format(size, len(userdata)))
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if size <= 4:
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print("WRN: missing user data")# debug
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return []
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@ -1342,6 +1260,73 @@ class ZK(object):
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else:
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raise ZKErrorResponse("can't clear data")
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def __recieve_tcp_data(self, data_recv, size):
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""" data_recv, raw tcp packet
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must analyze tcp_length
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must return data, broken
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"""
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data = []
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tcp_length = self.__test_tcp_top(data_recv) # tcp header
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if self.verbose: print ("tcp_length {}, size {}".format(tcp_length, size))
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if tcp_length <= 0:
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if self.verbose: print ("Incorrect tcp packet")
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return None, b""
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if (tcp_length - 8) < size: #broken on smaller DATAs
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if self.verbose: print ("tcp length too small... retrying")
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resp, bh = self.__recieve_tcp_data(data_recv, tcp_length - 8)
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data.append(resp)
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size -= len(resp)
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if self.verbose: print ("new tcp DATA packet to fill misssing {}".format(size))
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data_recv = bh + self.__sock.recv(size) #ideal limit?
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resp, bh = self.__recieve_tcp_data(data_recv, size)
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data.append(resp)
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if self.verbose: print ("for misssing {} recieved {} with extra {}".format(size, len(resp), len(bh)))
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return b''.join(data), bh
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recieved = len(data_recv)
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if self.verbose: print ("recieved {}, size {}".format(recieved, size))
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#if (tcp_length - 16) > (recieved - 16): #broken first DATA
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# #reparse as more data packets?
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# if self.verbose: print ("trying".format(recieved, size))
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# _data, bh = self.__recieve_tcp_data(data_recv, tcp_length-16)
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#analize first response
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response = unpack('HHHH', data_recv[8:16])[0]
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if recieved >= (size + 32): #complete with ACK_OK included
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if response == const.CMD_DATA:
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resp = data_recv[16 : size + 16] # no ack?
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if self.verbose: print ("resp complete len {}".format(len(resp)))
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return resp, data_recv[size + 16:]
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else:
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if self.verbose: print("incorrect response!!! {}".format(response))
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return None, b"" #broken
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else: # response DATA incomplete (or missing ACK_OK)
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if self.verbose: print ("try DATA incomplete (actual valid {})".format(recieved-16))
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data.append(data_recv[16 : size + 16 ]) # w/o DATA tcp and header
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size -= recieved - 16 # w/o DATA tcp and header
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broken_header = b""
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if size < 0: #broken ack header?
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broken_header = data_recv[size:]
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if self.verbose: print ("broken", (broken_header).encode('hex')) #TODO python3
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if size > 0: #need raw data to complete
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data_recv = self.__recieve_raw_data(size)
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data.append(data_recv) # w/o tcp and header
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return b''.join(data), broken_header
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#get cmd_ack_ok on __rchunk
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def __recieve_raw_data(self, size):
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""" partial data ? """
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data = []
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if self.verbose: print ("expecting {} bytes raw data".format(size))
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while size > 0:
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data_recv = self.__sock.recv(size) #ideal limit?
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recieved = len(data_recv)
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if self.verbose: print ("partial recv {}".format(recieved))
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data.append(data_recv) # w/o tcp and header
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size -= recieved
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if self.verbose: print ("still need {}".format(size))
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return b''.join(data)
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def __recieve_chunk(self):
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""" recieve a chunk """
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if self.__response == const.CMD_DATA: # less than 1024!!!
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@ -1350,61 +1335,36 @@ class ZK(object):
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elif self.__response == const.CMD_PREPARE_DATA:
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data = []
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size = self.__get_data_size()
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if self.verbose: print ("recieve chunk:data size is", size)
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if self.verbose: print ("recieve chunk: prepare data size is {}".format(size))
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if self.tcp:
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if len(self.__data)>=(8+size): #prepare data with actual data! should be 8+size+32
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if len(self.__data) >= (8 + size): #prepare data with actual data! should be 8+size+32
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data_recv = self.__data[8:] # test, maybe -32
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else:
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data_recv = self.__sock.recv(size + 32)
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tcp_length = self.__test_tcp_top(data_recv)
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if tcp_length == 0:
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print ("Incorrect tcp packet")
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return None
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recieved = len(data_recv)
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if self.verbose: print ("recieved {}, size {}".format(recieved, size))
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if tcp_length < (size + 8):
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if self.verbose: print ("request chunk too big!")
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response = unpack('HHHH', data_recv[8:16])[0]
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if recieved >= (size + 32): #complete with ACK_OK included
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if response == const.CMD_DATA:
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resp = data_recv[16 : size + 16] # no ack?
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if self.verbose: print ("resp complete len", len(resp))
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return resp
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else:
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if self.verbose: print("broken packet!!! {}".format(response))
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return None #broken
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else: # incomplete
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if self.verbose: print ("try incomplete (actual valid {})".format(recieved-16))
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data.append(data_recv[16 : size+ 16 ]) # w/o DATA tcp and header
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size -= recieved-16 # w/o DATA tcp and header
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broken_header = b""
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if size < 0: #broken ack header?
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broken_header = data_recv[size:]
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if self.verbose: print ("broken", (broken_header).encode('hex')) #TODO python3
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while size>0: #jic
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if self.verbose: print ("still need {}".format(size))
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data_recv = self.__sock.recv(size) #ideal limit?
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recieved = len(data_recv)
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if self.verbose: print ("partial recv {}".format(recieved))
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data.append(data_recv) # w/o tcp and header
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size -= recieved
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#get cmd_ack_ok
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data_recv = self.__sock.recv(size + 32) #could have two commands
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resp, broken_header = self.__recieve_tcp_data(data_recv, size)
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data.append(resp)
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# get CMD_ACK_OK
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if len(broken_header) < 16:
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data_recv = broken_header + self.__sock.recv(16)
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else:
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data_recv = broken_header
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#could be broken
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if len(data_recv) < 16:
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print ("trying to complete broken ACK %s /16" % len(data_recv))
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if self.verbose: print (data_recv.encode('hex')) #todo python3
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data_recv += self.__sock.recv(16 - len(data_recv)) #TODO: CHECK HERE_!
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if not self.__test_tcp_top(data_recv):
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if self.verbose: print ("invalid tcp ACK OK")
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if self.verbose: print ("invalid chunk tcp ACK OK")
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return None #b''.join(data) # incomplete?
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response = unpack('HHHH', data_recv[8:16])[0]
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if response == const.CMD_ACK_OK:
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if self.verbose: print ("chunk tcp ACK OK!")
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return b''.join(data)
|
||||
#data_recv[bytes+16:].encode('hex') #included CMD_ACK_OK
|
||||
if self.verbose: print("bad response %s" % data_recv)
|
||||
if self.verbose: print (data)
|
||||
if self.verbose: print (codecs.encode(data,'hex'))
|
||||
return None
|
||||
|
||||
return resp
|
||||
#else udp
|
||||
while True: #limitado por respuesta no por tamaño
|
||||
data_recv = self.__sock.recv(1024+8)
|
||||
@ -1459,10 +1419,12 @@ class ZK(object):
|
||||
#direct!!! small!!!
|
||||
size = len(self.__data)
|
||||
return self.__data, size
|
||||
#else ACK_OK with size
|
||||
size = unpack('I', self.__data[1:5])[0] # extra info???
|
||||
if self.verbose: print ("size fill be %i" % size)
|
||||
remain = size % MAX_CHUNK
|
||||
packets = (size-remain) // MAX_CHUNK # should be size /16k
|
||||
if self.verbose: print ("rwb: #{} packets of max {} bytes, and extra {} bytes remain".format(packets, MAX_CHUNK, remain))
|
||||
for _wlk in range(packets):
|
||||
data.append(self.__read_chunk(start,MAX_CHUNK))
|
||||
start += MAX_CHUNK
|
||||
|
||||
Loading…
Reference in New Issue
Block a user