from hippotat import *
-defcfg = '''
-[DEFAULT]
-max_requests_outstanding = 4
+import twisted.web
+import twisted.web.client
-[virtual]
-mtu = 1500
-# [host] } maybe computed from `network' (see server defaults)
+import io
-[server]
-# url } maybe computed from `addrs' and `port' (see server defaults)
+client_cs = None
-# [<my ip address>]
-# password = <password>
-'''
+def set_client(ci,cs,pw):
+ global client_cs
+ global password
+ assert(client_cs is None)
+ client_cs = cs
+ c.client = ci
+ c.max_outstanding = cfg.getint(cs, 'max_requests_outstanding')
+ c.target_outstanding = cfg.getint(cs, 'target_requests_outstanding')
+ password = pw
-def startup():
- common_startup(defcfg)
+def process_cfg():
+ global url
+ global max_requests_outstanding
-startup()
+ process_cfg_common_always()
+ process_cfg_server()
+
+ try:
+ c.url = cfg.get('server','url')
+ except NoOptionError:
+ process_cfg_saddrs()
+ c.url = c.saddrs[0].url()
+
+ process_cfg_clients(set_client)
+
+ c.routes = cfg.get('virtual','routes')
+ c.max_queue_time = cfg.getint(client_cs, 'max_queue_time')
+ c.max_batch_up = cfg.getint(client_cs, 'max_batch_up')
+ c.http_timeout = cfg.getint(client_cs, 'http_timeout')
+ c.http_retry = cfg.getint(client_cs, 'http_retry')
+
+ process_cfg_ipif(client_cs,
+ (('local', 'client'),
+ ('peer', 'server'),
+ ('rnets', 'routes')))
+
+outstanding = 0
+
+def start_client():
+ global queue
+ global agent
+ queue = PacketQueue('up', c.max_queue_time)
+ agent = twisted.web.client.Agent(reactor, connectTimeout = c.http_timeout)
+
+def outbound(packet, saddr, daddr):
+ #print('OUT ', saddr, daddr, repr(packet))
+ queue.append(packet)
+ check_outbound()
+
+class ResponseConsumer(twisted.internet.protocol.Protocol):
+ def __init__(self, req):
+ self._req = req
+ self._ssd = SlipStreamDecoder(queue_inbound)
+ self._log(DBG.HTTP_CTRL, '__init__')
+
+ def _log(self, dflag, msg, **kwargs):
+ log_debug(dflag, 'RC ' + msg, idof=self._req, **kwargs)
+
+ def dataReceived(self, data):
+ self._log(DBG.HTTP_CTRL, 'dataReceived', d=data)
+ try:
+ self._ssd.inputdata(mime_translate(data))
+ except Exception as e:
+ self._asyncfailure(e)
+
+ def connectionMade(self):
+ self._log(DBG.HTTP_CTRL, 'connectionMade')
+
+ def connectionLost(self, reason):
+ self._log(DBG.HTTP_CTRL, 'connectionLost')
+ if isinstance(reason, twisted.internet.error.ConnectionDone):
+ try: self._ssd.flush()
+ except Exception as e: asyncfailure(e)
+ else:
+ self._asyncfailure(reason)
+
+ def _asyncfailure(self, reason):
+ global outstanding
+ outstanding += 1
+ req_err(reason)
+
+def req_ok(req, resp):
+ rc = ResponseConsumer(req)
+ resp.deliverBody(rc)
+ req_fin()
+
+def req_err(err):
+ print(err, file=sys.stderr)
+ reactor.callLater(c.http_retry, req_fin)
+
+def req_fin(*args):
+ global outstanding
+ outstanding -= 1
+ check_outbound()
+
+def asyncfailure(reason):
+ global outstanding
+ outstanding += 1
+ req_err(reason)
+
+def check_outbound():
+ global outstanding
+
+ while True:
+ if outstanding >= c.max_outstanding : break
+ if not queue.nonempty() and outstanding >= c.target_outstanding: break
+
+ d = b''
+ def moredata(s): nonlocal d; d += s
+ queue.process((lambda: len(d)),
+ moredata,
+ c.max_batch_up)
+
+ d = mime_translate(d)
+
+ crlf = b'\r\n'
+ lf = b'\n'
+ mime = (b'--b' + crlf +
+ b'Content-Type: text/plain; charset="utf-8"' + crlf +
+ b'Content-Disposition: form-data; name="m"' + crlf + crlf +
+ str(c.client) .encode('ascii') + crlf +
+ password + crlf +
+ str(c.target_outstanding) .encode('ascii') + crlf +
+ ((
+ b'--b' + crlf +
+ b'Content-Type: application/octet-stream' + crlf +
+ b'Content-Disposition: form-data; name="d"' + crlf + crlf +
+ d + crlf
+ ) if len(d) else b'') +
+ b'--b--' + crlf)
+
+ #df = open('data.dump.dbg', mode='wb')
+ #df.write(mime)
+ #df.close()
+ # POST -use -c 'multipart/form-data; boundary="b"' http://localhost:8099/ <data.dump.dbg
+
+ log_debug(DBG.HTTP_FULL, 'requesting: ' + str(mime))
+
+ hh = { 'User-Agent': ['hippotat'],
+ 'Content-Type': ['multipart/form-data; boundary="b"'],
+ 'Content-Length': [str(len(mime))] }
+
+ bytesreader = io.BytesIO(mime)
+ producer = twisted.web.client.FileBodyProducer(bytesreader)
+
+ req = agent.request(b'POST',
+ c.url,
+ twisted.web.client.Headers(hh),
+ producer)
+ req.addTimeout(c.http_timeout, reactor)
+ req.addCallback((lambda resp: req_ok(req, resp)))
+ req.addErrback(req_err)
+ outstanding += 1
+
+common_startup()
+process_cfg()
+start_client()
+start_ipif(c.ipif_command, outbound)
+check_outbound()
+common_run()