6 import twisted.web.client
12 def set_client(ci,cs,pw):
15 assert(client_cs is None)
18 c.max_outstanding = cfg.getint(cs, 'max_requests_outstanding')
19 c.target_outstanding = cfg.getint(cs, 'target_requests_outstanding')
24 global max_requests_outstanding
26 process_cfg_common_always()
30 c.url = cfg.get('server','url')
33 c.url = c.saddrs[0].url()
35 process_cfg_clients(set_client)
37 c.routes = cfg.get('virtual','routes')
38 c.max_queue_time = cfg.getint(client_cs, 'max_queue_time')
39 c.max_batch_up = cfg.getint(client_cs, 'max_batch_up')
40 c.http_timeout = cfg.getint(client_cs, 'http_timeout')
41 c.http_retry = cfg.getint(client_cs, 'http_retry')
43 process_cfg_ipif(client_cs,
53 queue = PacketQueue('up', c.max_queue_time)
54 agent = twisted.web.client.Agent(reactor, connectTimeout = c.http_timeout)
56 def outbound(packet, saddr, daddr):
57 #print('OUT ', saddr, daddr, repr(packet))
61 class ResponseConsumer(twisted.internet.protocol.Protocol):
62 def __init__(self, req):
64 self._ssd = SlipStreamDecoder(queue_inbound)
65 self._log(DBG.HTTP_CTRL, '__init__')
67 def _log(self, dflag, msg, **kwargs):
68 log_debug(dflag, 'RC ' + msg, idof=self._req, **kwargs)
70 def dataReceived(self, data):
71 try: self._ssd.inputdata(mime_translate(data))
72 except Exception as e: asyncfailure(e)
73 def connectionMade(self): pass
74 def connectionLost(self, reason):
75 if isinstance(reason, twisted.internet.error.ConnectionDone):
76 try: self._ssd.flush()
77 except Exception as e: asyncfailure(e)
81 def req_ok(req, resp):
82 rc = ResponseConsumer(req)
87 print(err, file=sys.stderr)
88 reactor.callLater(c.http_retry, req_fin)
95 def asyncfailure(reason):
100 def check_outbound():
104 if outstanding >= c.max_outstanding : break
105 if not queue.nonempty() and outstanding >= c.target_outstanding: break
108 def moredata(s): nonlocal d; d += s
109 queue.process((lambda: len(d)),
113 d = mime_translate(d)
117 mime = (b'--b' + crlf +
118 b'Content-Type: text/plain; charset="utf-8"' + crlf +
119 b'Content-Disposition: form-data; name="m"' + crlf + crlf +
120 str(c.client) .encode('ascii') + crlf +
122 str(c.target_outstanding) .encode('ascii') + crlf +
125 b'Content-Type: application/octet-stream' + crlf +
126 b'Content-Disposition: form-data; name="d"' + crlf + crlf +
128 ) if len(d) else b'') +
131 #df = open('data.dump.dbg', mode='wb')
134 # POST -use -c 'multipart/form-data; boundary="b"' http://localhost:8099/ <data.dump.dbg
136 log_debug(DBG.HTTP_FULL, 'requesting: ' + str(mime))
138 hh = { 'User-Agent': ['hippotat'],
139 'Content-Type': ['multipart/form-data; boundary="b"'],
140 'Content-Length': [str(len(mime))] }
142 bytesreader = io.BytesIO(mime)
143 producer = twisted.web.client.FileBodyProducer(bytesreader)
145 req = agent.request(b'POST',
147 twisted.web.client.Headers(hh),
149 req.addTimeout(c.http_timeout, reactor)
150 req.addCallback((lambda resp: req_ok(req, resp)))
151 req.addErrback(req_err)
157 start_ipif(c.ipif_command, outbound)