X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?a=blobdiff_plain;f=client;h=062b99270a7676e0622448d5bd0bbe1a2c1bc353;hb=7fa9c13219dead4880b5912445167efc45d34487;hp=b0250dec14d9083a70d896436306bda8c912a558;hpb=88487243bc0be906c63258005df75b96bc8165a5;p=hippotat.git

diff --git a/client b/client
index b0250de..062b992 100755
--- a/client
+++ b/client
@@ -2,45 +2,256 @@
 
 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, partial(queue_inbound, cl.ipif))
+    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()
+    self._cl.report_running()
 
-  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(GeneralResponseConsumer):
+  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)
+    cl.running_reported = False
+    cl.log_info('setting up')
+
+  def log_info(cl, msg):
+    log.info(cl.desc + msg, dflag=False)
+
+  def report_running(cl):
+    if not cl.running_reported:
+      cl.log_info('running OK')
+      cl.running_reported = True
+
+  def log(cl, dflag, msg, **kwargs):
+    log_debug(dflag, cl.desc + msg, **kwargs)
+
+  def log_outstanding(cl):
+    cl.log(DBG.CTRL_DUMP, 'OS %s' % cl.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(cl.outstanding[req], int):
+        raise RuntimeError('[%#x] previously %s' %
+                           (id(req), cl.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(cl.outstanding), idof=req)
+    cl.check_outbound()
+
+  def check_outbound(cl):
+    while True:
+      if len(cl.outstanding) >= cl.c.max_outstanding:
+        break
+
+      if (not cl.queue.nonempty() and
+          len(cl.outstanding) >= cl.c.target_requests_outstanding):
+        break
+
+      d = b''
+      def moredata(s): nonlocal d; d += s
+      cl.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_requests_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 = cl.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.max_queue_time  = srch(cfg.getint, 'max_queue_time')
+      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()
+  cl.ipif = start_ipif(cl.c.ipif_command, cl.outbound)
+  cl.check_outbound()
+
+common_run()