|
1
|
|
|
import asyncio |
|
2
|
|
|
import base64 |
|
3
|
|
|
import collections |
|
4
|
|
|
import logging |
|
5
|
|
|
|
|
6
|
|
|
try: |
|
7
|
|
|
import ujson as json |
|
8
|
|
|
except ImportError: |
|
9
|
|
|
import json |
|
10
|
|
|
|
|
11
|
|
|
from gremlin_python.driver import protocol, request, serializer |
|
12
|
|
|
|
|
13
|
|
|
|
|
14
|
|
|
__author__ = 'David M. Brown ([email protected])' |
|
15
|
|
|
|
|
16
|
|
|
|
|
17
|
|
|
logger = logging.getLogger(__name__) |
|
18
|
|
|
|
|
19
|
|
|
|
|
20
|
|
|
Message = collections.namedtuple( |
|
21
|
|
|
"Message", |
|
22
|
|
|
["status_code", "data", "message"]) |
|
23
|
|
|
|
|
24
|
|
|
|
|
25
|
|
|
class GremlinServerWSProtocol(protocol.AbstractBaseProtocol): |
|
26
|
|
|
"""Implemenation of the Gremlin Server Websocket protocol""" |
|
27
|
|
|
def __init__(self, message_serializer, username='', password=''): |
|
28
|
|
|
if isinstance(message_serializer, type): |
|
29
|
|
|
message_serializer = message_serializer() |
|
30
|
|
|
self._message_serializer = message_serializer |
|
31
|
|
|
self._username = username |
|
32
|
|
|
self._password = password |
|
33
|
|
|
|
|
34
|
|
|
def connection_made(self, transport): |
|
35
|
|
|
self._transport = transport |
|
36
|
|
|
|
|
37
|
|
|
async def write(self, request_id, request_message): |
|
38
|
|
|
message = self._message_serializer.serialize_message( |
|
39
|
|
|
request_id, request_message) |
|
40
|
|
|
func = self._transport.write(message) |
|
41
|
|
|
if asyncio.iscoroutine(func): |
|
42
|
|
|
await func |
|
43
|
|
|
|
|
44
|
|
|
async def data_received(self, data, results_dict): |
|
45
|
|
|
data = data.decode('utf-8') |
|
46
|
|
|
message = self._message_serializer.deserialize_message(json.loads(data)) |
|
47
|
|
|
request_id = message['requestId'] |
|
48
|
|
|
status_code = message['status']['code'] |
|
49
|
|
|
data = message['result']['data'] |
|
50
|
|
|
msg = message['status']['message'] |
|
51
|
|
|
if request_id in results_dict: |
|
52
|
|
|
result_set = results_dict[request_id] |
|
53
|
|
|
aggregate_to = message['result']['meta'].get('aggregateTo', 'list') |
|
54
|
|
|
result_set.aggregate_to = aggregate_to |
|
55
|
|
|
|
|
56
|
|
|
if status_code == 407: |
|
57
|
|
|
auth = b''.join([b'\x00', self._username.encode('utf-8'), |
|
58
|
|
|
b'\x00', self._password.encode('utf-8')]) |
|
59
|
|
|
request_message = request.RequestMessage( |
|
60
|
|
|
'traversal', 'authentication', |
|
61
|
|
|
{'sasl': base64.b64encode(auth).decode()}) |
|
62
|
|
|
await self.write(request_id, request_message) |
|
63
|
|
|
elif status_code == 204: |
|
64
|
|
|
result_set.queue_result(None) |
|
65
|
|
|
else: |
|
66
|
|
|
if data: |
|
67
|
|
|
for result in data: |
|
68
|
|
|
result = self._message_serializer.deserialize_message(result) |
|
69
|
|
|
message = Message(status_code, result, msg) |
|
70
|
|
|
result_set.queue_result(message) |
|
71
|
|
|
else: |
|
72
|
|
|
message = Message(status_code, data, msg) |
|
73
|
|
|
result_set.queue_result(message) |
|
74
|
|
|
if status_code != 206: |
|
75
|
|
|
result_set.queue_result(None) |
|
76
|
|
|
|
goblin-ogm /
aiogremlin
