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_retry = cfg.getint(client_cs, 'http_retry')
+ c.http_timeout = (cfg.getint(client_cs, 'http_timeout') +
+ cfg.getint(client_cs, 'http_timeout_grace'))
+
+ process_cfg_ipif(client_cs,
+ (('local', 'client'),
+ ('peer', 'server'),
+ ('rnets', 'routes')))
+
+outstanding = { }
+
+def log_outstanding():
+ log_debug(DBG.CTRL_DUMP, 'OS %s' % outstanding)
+
+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 GeneralResponseConsumer(twisted.internet.protocol.Protocol):
+ def __init__(self, req, desc):
+ self._req = req
+ self._desc = desc
+
+ def _log(self, dflag, msg, **kwargs):
+ log_debug(dflag, '%s: %s' % (self._desc, msg), idof=self._req, **kwargs)
+
+ def connectionMade(self):
+ self._log(DBG.HTTP_CTRL, 'connectionMade')
+
+class ResponseConsumer(GeneralResponseConsumer):
+ def __init__(self, req):
+ super().__init__(req, 'RC')
+ ssddesc = '[%s] %s' % (id(req), self._desc)
+ self._ssd = SlipStreamDecoder(ssddesc, queue_inbound)
+ self._log(DBG.HTTP_CTRL, '__init__')
+
+ def dataReceived(self, data):
+ self._log(DBG.HTTP, 'dataReceived', d=data)
+ try:
+ self._ssd.inputdata(data)
+ except Exception as e:
+ self._handleexception()
+
+ 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()
+ req_fin(self._req)
+ except Exception as e:
+ self._handleexception()
+
+ def _handleexception(self):
+ self._latefailure(traceback.format_exc())
+
+ def _latefailure(self, reason):
+ self._log(DBG.HTTP_CTRL, '_latefailure ' + str(reason))
+ req_err(self._req, reason)
+
+class ErrorResponseConsumer(twisted.internet.protocol.Protocol):
+ def __init__(self, req, resp):
+ super().__init__(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)
+ req_err(self._req,
+ "FAILED %d %s | %s"
+ % (self._resp.code, self._phrase, mbody))
+
+def req_ok(req, resp):
+ log_debug(DBG.HTTP_CTRL,
+ 'req_ok %d %s %s' % (resp.code, repr(resp.phrase), str(resp)),
+ idof=req)
+ if resp.code == 200:
+ rc = ResponseConsumer(req)
+ else:
+ rc = ErrorResponseConsumer(req, resp)
+
+ resp.deliverBody(rc)
+ # now rc is responsible for calling req_fin
+
+def req_err(req, err):
+ # called when the Deferred fails, or (if it completes),
+ # later, by ResponsConsumer or ErrorResponsConsumer
+ try:
+ log_debug(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]))
+ outstanding[req] = err
+ log_outstanding()
+ reactor.callLater(c.http_retry, partial(req_fin, req))
+ except Exception as e:
+ crash(traceback.format_exc() + '\n----- handling -----\n' + err)
+
+def req_fin(req):
+ del outstanding[req]
+ log_debug(DBG.HTTP_CTRL, 'req_fin OS=%d' % len(outstanding), idof=req)
+ check_outbound()
+
+class Errb:
+ def __init__(self, req):
+ self._req = req
+ def call(self, err):
+ req_err(self._req, err)
+
+def check_outbound():
+ global outstanding
+
+ while True:
+ if len(outstanding) >= c.max_outstanding : break
+ if not queue.nonempty() and len(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 +
+ str(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
+
+ 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)
+
+ outstanding[req] = len(d)
+ log_debug(DBG.HTTP_CTRL, 'request OS=%d' % len(outstanding), idof=req, d=d)
+ req.addTimeout(c.http_timeout, reactor)
+ req.addCallback(partial(req_ok, req))
+ req.addErrback(partial(req_err, req))
+
+ log_outstanding()
+
+common_startup()
+process_cfg()
+start_client()
+start_ipif(c.ipif_command, outbound)
+check_outbound()
+common_run()
~ian / hippotat.git / blobdiff