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 python
#
# This is an example program that illustrates
# how to interact with the zeromq remote control
# using JSON.
#
# LICENSE: see bottom of file
import sys
import zmq
from pprint import pprint
import json
import re
from http.server import BaseHTTPRequestHandler, HTTPServer
import time
re_url = re.compile(r"/([a-zA-Z0-9]+).json")
ZMQ_REMOTE = "tcp://localhost:9400"
HTTP_HOSTNAME = "localhost"
HTTP_PORT = 8080
class DabMuxServer(BaseHTTPRequestHandler):
def err500(self, message):
self.send_response(500)
self.send_header("Content-type", "application/json")
self.end_headers()
self.wfile.write(json.dumps({"error": message}).encode())
def do_GET(self):
m = re_url.match(self.path)
if m:
sock = context.socket(zmq.REQ)
poller = zmq.Poller()
poller.register(sock, zmq.POLLIN)
sock.connect(ZMQ_REMOTE)
sock.send(b"ping")
socks = dict(poller.poll(1000))
if socks:
if socks.get(sock) == zmq.POLLIN:
data = sock.recv()
if data != b"ok":
print(f"Received {data} to ping!", file=sys.stderr)
self.err500("ping failure")
return
else:
print("ZMQ error: ping timeout", file=sys.stderr)
self.err500("ping timeout")
return
sock.send(b"showjson", flags=zmq.SNDMORE)
sock.send(m.group(1).encode())
socks = dict(poller.poll(1000))
if socks:
if socks.get(sock) == zmq.POLLIN:
data = sock.recv_multipart()
print("Received: {}".format(len(data)), file=sys.stderr)
parts = []
for i, part_data in enumerate(data):
part = part_data.decode()
print(" RX {}: {}".format(i, part.replace('\n',' ')), file=sys.stderr)
if i == 0 and part != "fail":
self.send_response(200)
self.send_header("Content-type", "application/json")
self.end_headers()
self.wfile.write(part_data)
return
parts.append(part)
self.err500("data error " + " ".join(parts))
return
else:
print("ZMQ error: timeout", file=sys.stderr)
self.err500("timeout")
return
else:
self.send_response(200)
self.send_header("Content-type", "text/html")
self.end_headers()
self.wfile.write("""<html><head><title>ODR-DabMod RC HTTP server</title></head>\n""".encode())
self.wfile.write("""<body>\n""".encode())
for mod in ("sdr", "tist", "modulator", "tii", "ofdm", "gain", "guardinterval"):
self.wfile.write(f"""<p><a href="{mod}.json">{mod}.json</a></p>\n""".encode())
self.wfile.write("""</body></html>\n""".encode())
if __name__ == "__main__":
context = zmq.Context()
webServer = HTTPServer((HTTP_HOSTNAME, HTTP_PORT), DabMuxServer)
print("Server started http://%s:%s" % (HTTP_HOSTNAME, HTTP_PORT))
try:
webServer.serve_forever()
except KeyboardInterrupt:
pass
webServer.server_close()
context.destroy(linger=5)
# This is free and unencumbered software released into the public domain.
#
# Anyone is free to copy, modify, publish, use, compile, sell, or
# distribute this software, either in source code form or as a compiled
# binary, for any purpose, commercial or non-commercial, and by any
# means.
#
# In jurisdictions that recognize copyright laws, the author or authors
# of this software dedicate any and all copyright interest in the
# software to the public domain. We make this dedication for the benefit
# of the public at large and to the detriment of our heirs and
# successors. We intend this dedication to be an overt act of
# relinquishment in perpetuity of all present and future rights to this
# software under copyright law.
#
# 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 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.
#
# For more information, please refer to <http://unlicense.org>
|
