1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
|
#!/usr/bin/env python3
# -*- coding: utf-8 eval: (blacken-mode 1) -*-
#
# February 22 2022, Christian Hopps <chopps@labn.net>
#
# Copyright (c) 2022, LabN Consulting, L.L.C.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
import argparse
import logging
import os
import sys
import pytest
CWD = os.path.dirname(os.path.realpath(__file__))
# This is painful but works if you have installed grpc and grpc_tools would be *way*
# better if we actually built and installed these but ... python packaging.
try:
import grpc
import grpc_tools
from micronet import commander
commander.cmd_raises(f"cp {CWD}/../../../grpc/frr-northbound.proto .")
commander.cmd_raises(
f"python -m grpc_tools.protoc --python_out=. --grpc_python_out=. -I . frr-northbound.proto"
)
except Exception as error:
logging.error("can't create proto definition modules %s", error)
raise
try:
sys.path[0:0] = "."
import frr_northbound_pb2
import frr_northbound_pb2_grpc
# Would be nice if compiling the modules internally from the source worked
# # import grpc_tools.protoc
# # proto_include = pkg_resources.resource_filename("grpc_tools", "_proto")
# from grpc_tools.protoc import _proto_file_to_module_name, _protos_and_services
# try:
# frr_northbound_pb2, frr_northbound_pb2_grpc = _protos_and_services(
# "frr_northbound.proto"
# )
# finally:
# os.chdir(CWD)
except Exception as error:
logging.error("can't import proto definition modules %s", error)
raise
class GRPCClient:
def __init__(self, server, port):
self.channel = grpc.insecure_channel("{}:{}".format(server, port))
self.stub = frr_northbound_pb2_grpc.NorthboundStub(self.channel)
def get_capabilities(self):
request = frr_northbound_pb2.GetCapabilitiesRequest()
response = "NONE"
try:
response = self.stub.GetCapabilities(request)
except Exception as error:
logging.error("Got exception from stub: %s", error)
logging.debug("GRPC Capabilities: %s", response)
return response
def get(self, xpath):
request = frr_northbound_pb2.GetRequest()
request.path.append(xpath)
request.type = frr_northbound_pb2.GetRequest.ALL
request.encoding = frr_northbound_pb2.XML
xml = ""
for r in self.stub.Get(request):
logging.info('GRPC Get path: "%s" value: %s', request.path, r)
xml += str(r.data.data)
return xml
def next_action(action_list=None):
"Get next action from list or STDIN"
if action_list:
for action in action_list:
yield action
else:
while True:
try:
action = input("")
if not action:
break
yield action.strip()
except EOFError:
break
def main(*args):
parser = argparse.ArgumentParser(description="gRPC Client")
parser.add_argument(
"-s", "--server", default="localhost", help="gRPC Server Address"
)
parser.add_argument(
"-p", "--port", type=int, default=50051, help="gRPC Server TCP Port"
)
parser.add_argument("-v", "--verbose", action="store_true", help="be verbose")
parser.add_argument("--check", action="store_true", help="check runable")
parser.add_argument("actions", nargs="*", help="GETCAP|GET,xpath")
args = parser.parse_args(*args)
level = logging.DEBUG if args.verbose else logging.INFO
logging.basicConfig(
level=level,
format="%(asctime)s %(levelname)s: GRPC-CLI-CLIENT: %(name)s %(message)s",
)
if args.check:
sys.exit(0)
c = GRPCClient(args.server, args.port)
for action in next_action(args.actions):
action = action.casefold()
logging.info("GOT ACTION: %s", action)
if action == "getcap":
caps = c.get_capabilities()
print("Capabilities:", caps)
elif action.startswith("get,"):
# Print Interface State and Config
_, xpath = action.split(",", 1)
print("Get XPath: ", xpath)
xml = c.get(xpath)
print("{}: {}".format(xpath, xml))
# for _ in range(0, 1):
if __name__ == "__main__":
main()
|
