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
|
#!/usr/bin/env python3
"""
simple client for que.run
"""
import argparse
import configparser
import http.client
import os
import subprocess
import sys
import time
import urllib.parse
import urllib.request as request
MAX_TIMEOUT = 99999999 # basically never timeout
def auth():
conf_file = os.path.expanduser("~/.config/que.conf")
if not os.path.exists(conf_file):
sys.exit("you need a ~/.config/que.conf")
cfg = configparser.ConfigParser()
cfg.read(conf_file)
return cfg
def send(args):
"Send a message to the que."
ns = args.target.split("/")[0]
key = auth()[ns]["key"]
data = args.infile.read().encode("utf-8").strip()
req = request.Request(f"{args.host}/{args.target}")
req.add_header("User-AgenT", "Que/Client")
if key:
req.add_header("Authorization", key)
if args.serve:
while not time.sleep(1):
request.urlopen(req, data=data, timeout=MAX_TIMEOUT)
else:
request.urlopen(req, data=data, timeout=MAX_TIMEOUT)
def recv(args):
"Receive a message from the que."
ns = args.target.split("/")[0]
key = auth()[ns]["key"]
def _recv(_req):
msg = _req.readline().decode("utf-8").strip()
print(msg)
if args.then:
subprocess.run(
args.then.replace("\msg", msg).replace("\que", args.target), shell=True
)
params = urllib.parse.urlencode({"poll": args.poll})
req = request.Request(f"{args.host}/{args.target}?{params}")
req.add_header("User-Agent", "Que/Client")
if key:
req.add_header("Authorization", key)
with request.urlopen(req) as _req:
if args.poll:
while not time.sleep(1):
_recv(_req)
else:
_recv(_req)
def get_args():
cli = argparse.ArgumentParser(description=__doc__)
cli.add_argument(
"--host", default="http://que.run", help="where que-server is running"
)
cli.add_argument(
"--poll", default=False, action="store_true", help="stream data from the que"
)
cli.add_argument(
"--then",
help=" ".join(
[
"when polling, run this shell command after each response,",
"presumably for side effects,"
"replacing '\que' with the target and '\msg' with the body of the response",
]
),
)
cli.add_argument(
"--serve",
default=False,
action="store_true",
help=" ".join(
[
"when posting to the que, do so continuously in a loop.",
"this can be used for serving a webpage or other file continuously",
]
),
)
cli.add_argument(
"target", help="namespace and path of the que, like 'ns/path/subpath'"
)
cli.add_argument(
"infile",
nargs="?",
type=argparse.FileType("r"),
help="data to put on the que. Use '-' for stdin, otherwise should be a readable file",
)
return cli.parse_args()
if __name__ == "__main__":
args = get_args()
try:
if args.infile:
send(args)
else:
recv(args)
except KeyboardInterrupt:
sys.exit(0)
except urllib.error.HTTPError as e:
print(e)
sys.exit(1)
except http.client.RemoteDisconnected as e:
print("disconnected... retrying in 5 seconds")
time.sleep(5)
if args.infile:
send(args)
else:
recv(args)
|
