from hippotat import *
-defcfg = '''
-[DEFAULT]
-max_requests_outstanding = 4
+import twisted.web
+import twisted.web.client
-[virtual]
-mtu = 1500
-# [server] } maybe computed from `network' (see server defaults)
+import io
-[server]
-# url } maybe computed from `addrs' and `port' (see server defaults)
+class GeneralResponseConsumer(twisted.internet.protocol.Protocol):
+ def __init__(self, cl, req, desc):
+ self._cl = cl
+ self._req = req
+ self._desc = desc
-# [<my ip address>]
-# password = <password>
-'''
+ def _log(self, dflag, msg, **kwargs):
+ self.cl.log(dflag, '%s: %s' % (self._desc, msg), idof=self._req, **kwargs)
-c.clientv = None
-c.max_outstanding =
+ def connectionMade(self):
+ self._log(DBG.HTTP_CTRL, 'connectionMade')
-def set_client(ci,cs,pw):
- global password
- assert(c.clientv is None)
- c.clientv = ci
- c.max_outstanding = cfg.getint(cs, 'max_requests_outstanding')
- password = pw
+class ResponseConsumer(GeneralResponseConsumer):
+ def __init__(self, cl, req):
+ super().__init__(cl, req, 'RC')
+ ssddesc = '[%s] %s' % (id(req), self._desc)
+ self._ssd = SlipStreamDecoder(ssddesc, cl.queue_inbound)
+ self._log(DBG.HTTP_CTRL, '__init__')
-def process_cfg():
- global url
- global max_requests_outstanding
+ def dataReceived(self, data):
+ self._log(DBG.HTTP, 'dataReceived', d=data)
+ try:
+ self._ssd.inputdata(data)
+ except Exception as e:
+ self._handleexception()
- process_cfg_common_always()
- process_cfg_server()
+ def connectionLost(self, reason):
+ self._log(DBG.HTTP_CTRL, 'connectionLost ' + str(reason))
+ if not reason.check(twisted.web.client.ResponseDone):
+ self.latefailure()
+ return
+ try:
+ self._log(DBG.HTTP, 'ResponseDone')
+ self._ssd.flush()
+ self.cl.req_fin(self._req)
+ except Exception as e:
+ self._handleexception()
- try:
- c.url = cfg.get('server','url')
- except NoOptionError:
- process_cfg_saddrs()
- sa = c.saddrs[1].url()
+ def _handleexception(self):
+ self._latefailure(traceback.format_exc())
- process_cfg_clients(set_client)
+ def _latefailure(self, reason):
+ self._log(DBG.HTTP_CTRL, '_latefailure ' + str(reason))
+ self.cl.req_err(self._req, reason)
-common_startup(defcfg)
-process_cfg()
+class ErrorResponseConsumer(twisted.internet.protocol.Protocol):
+ def __init__(self, cl, req, resp):
+ super().__init__(cl, req, 'ERROR-RC')
+ self._resp = resp
+ self._m = b''
+ try:
+ self._phrase = resp.phrase.decode('utf-8')
+ except Exception:
+ self._phrase = repr(resp.phrase)
+ self._log(DBG.HTTP_CTRL, '__init__ %d %s' % (resp.code, self._phrase))
+
+ def dataReceived(self, data):
+ self._log(DBG.HTTP_CTRL, 'dataReceived ' + repr(data))
+ self._m += data
+
+ def connectionLost(self, reason):
+ try:
+ mbody = self._m.decode('utf-8')
+ except Exception:
+ mbody = repr(self._m)
+ if not reason.check(twisted.web.client.ResponseDone):
+ mbody += ' || ' + str(reason)
+ self.cl.req_err(self._req,
+ "FAILED %d %s | %s"
+ % (self._resp.code, self._phrase, mbody))
+
+class Client():
+ def __init__(cl, c,ss,cs):
+ cl.c = c
+ cl.outstanding = { }
+ cl.desc = '[%s %s] ' % (ss,cs)
+
+ def log(cl, dflag, msg, **kwargs):
+ log_debug(dflag, cl.desc + msg, **kwargs)
+
+ def log_outstanding(cl):
+ cl.log(DBG.CTRL_DUMP, 'OS %s' % outstanding)
+
+ def start(cl):
+ cl.queue = PacketQueue('up', cl.c.max_queue_time)
+ cl.agent = twisted.web.client.Agent(
+ reactor, connectTimeout = cl.c.http_timeout)
+
+ def outbound(cl, packet, saddr, daddr):
+ #print('OUT ', saddr, daddr, repr(packet))
+ cl.queue.append(packet)
+ cl.check_outbound()
+
+ def req_ok(cl, req, resp):
+ cl.log(DBG.HTTP_CTRL,
+ 'req_ok %d %s %s' % (resp.code, repr(resp.phrase), str(resp)),
+ idof=req)
+ if resp.code == 200:
+ rc = ResponseConsumer(cl, req)
+ else:
+ rc = ErrorResponseConsumer(cl, req, resp)
+
+ resp.deliverBody(rc)
+ # now rc is responsible for calling req_fin
+
+ def req_err(cl, req, err):
+ # called when the Deferred fails, or (if it completes),
+ # later, by ResponsConsumer or ErrorResponsConsumer
+ try:
+ cl.log(DBG.HTTP_CTRL, 'req_err ' + str(err), idof=req)
+ if isinstance(err, twisted.python.failure.Failure):
+ err = err.getTraceback()
+ print('[%#x] %s' % (id(req), err), file=sys.stderr)
+ if not isinstance(outstanding[req], int):
+ raise RuntimeError('[%#x] previously %s' % (id(req), outstanding[req]))
+ cl.outstanding[req] = err
+ cl.log_outstanding()
+ reactor.callLater(cl.c.http_retry, partial(cl.req_fin, req))
+ except Exception as e:
+ crash(traceback.format_exc() + '\n----- handling -----\n' + err)
+
+ def req_fin(cl, req):
+ del cl.outstanding[req]
+ cl.log(DBG.HTTP_CTRL, 'req_fin OS=%d' % len(outstanding), idof=req)
+ cl.check_outbound()
+
+ def check_outbound(cl):
+ while True:
+ if len(cl.outstanding) >= cl.c.max_outstanding:
+ break
+
+ if (not queue.nonempty() and
+ len(cl.outstanding) >= cl.c.target_outstanding):
+ break
+
+ d = b''
+ def moredata(s): nonlocal d; d += s
+ queue.process((lambda: len(d)),
+ moredata,
+ cl.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(cl.c.client) .encode('ascii') + crlf +
+ cl.c.password + crlf +
+ str(cl.c.target_outstanding).encode('ascii') + crlf +
+ str(cl.c.http_timeout) .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
+
+ cl.log(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',
+ cl.c.url,
+ twisted.web.client.Headers(hh),
+ producer)
+
+ cl.outstanding[req] = len(d)
+ cl.log(DBG.HTTP_CTRL,
+ 'request OS=%d' % len(cl.outstanding),
+ idof=req, d=d)
+ req.addTimeout(cl.c.http_timeout, reactor)
+ req.addCallback(partial(cl.req_ok, req))
+ req.addErrback(partial(cl.req_err, req))
+
+ cl.log_outstanding()
+
+clients = [ ]
+
+def process_cfg(putative_servers, putative_clients):
+ global clients
+
+ for ss in putative_servers.values():
+ for (ci,cs) in putative_clients.items():
+ c = ConfigResults()
+
+ sections = cfg_process_client_common(c,ss,cs,ci)
+ if not sections: continue
+
+ def srch(getter,key): return cfg_search(getter,key,sections)
+
+ c.http_timeout += srch(cfg.getint, 'http_timeout_grace')
+ c.max_outstanding = srch(cfg.getint, 'max_requests_outstanding')
+ c.max_batch_up = srch(cfg.getint, 'max_batch_up')
+ c.http_retry = srch(cfg.getint, 'http_retry')
+ c.vroutes = srch(cfg.get, 'vroutes')
+
+ try: c.url = srch(cfg.get,'url')
+ except NoOptionError:
+ cfg_process_saddrs(c, ss)
+ c.url = c.saddrs[0].url()
+
+ c.client = ci
+
+ cfg_process_vaddr(c,ss)
+
+ cfg_process_ipif(c,
+ sections,
+ (('local','client'),
+ ('peer', 'vaddr'),
+ ('rnets','vroutes')))
+
+ clients.append(Client(c,ss,cs))
+
+common_startup(process_cfg)
+
+for cl in clients:
+ cl.start()
+ start_ipif(cl.c.ipif_command, cl.outbound)
+ cl.check_outbound()
+
+common_run()