X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?a=blobdiff_plain;f=server;h=68a3ebd0c26a0189de9b67fe056c16a26db92746;hb=d579a04817c1a141e715481a18fe7d71568c451d;hp=e3e28cebada5e77c3186f47d2a3748fa90f8e1d7;hpb=7b07f0b5fd215702dc58c53bd1cd7c63767f5710;p=hippotat.git

diff --git a/server b/server
index e3e28ce..68a3ebd 100755
--- a/server
+++ b/server
@@ -17,18 +17,22 @@ clients = { }
 #---------- "router" ----------
 
 def route(packet, saddr, daddr):
-  print('TRACE ', saddr, daddr, packet)
-  try: client = clients[daddr]
+  def lt(dest):
+    log_data(DBG.ROUTE, packet, 'route: %s -> %s: %s' % (saddr,daddr,dest))
+  try: dclient = clients[daddr]
   except KeyError: dclient = None
   if dclient is not None:
+    lt('client')
     dclient.queue_outbound(packet)
   elif daddr == c.server or daddr not in c.network:
-    print('TRACE INBOUND ', saddr, daddr, packet)
+    lt('inbound')
     queue_inbound(packet)
   elif daddr == relay:
+    lt('discard relay')
     log_discard(packet, saddr, daddr, 'relay')
   else:
-    log_discard(packet, saddr, daddr, 'no client')
+    lt('discard no-client')
+    log_discard(packet, saddr, daddr, 'no-client')
 
 #---------- client ----------
 
@@ -61,7 +65,10 @@ class Client():
       raise ValueError('multiple client cfg sections for %s' % ip)
     clients[ip] = self
 
+    log_debug('DBG.INIT', 'new client %s' % self)
+
   def process_arriving_data(self, d):
+    log_data(DBG.FLOW, d, 'client req data: %s' % saddr=self._ip)
     for packet in slip.decode(d):
       (saddr, daddr) = packet_addrs(packet)
       if saddr != self._ip:
@@ -69,16 +76,18 @@ class Client():
       route(packet, saddr, daddr)
 
   def _req_cancel(self, request):
+    log_httpreq(DBG.HTTPCTRL, request, 'cancel')
     request.finish()
 
   def _req_error(self, err, request):
+    log_httpreq(DBG.HTTPCTRL, request, 'error %s' % err)
     self._req_cancel(request)
 
   def queue_outbound(self, packet):
     self._pq.append(packet)
     self._check_outbound()
 
-  def http_request(self, request):
+  def new_request(self, request):
     request.setHeader('Content-Type','application/octet-stream')
     reactor.callLater(self.max_request_time, self._req_cancel, request)
     request.notifyFinish().addErrback(self._req_error, request)
@@ -86,55 +95,81 @@ class Client():
     self._check_outbound()
 
   def _check_outbound(self):
+    log_httpreq(DBG.HTTPCTRL, None, 'CHKO')
     while True:
       try: request = self._rq[0]
       except IndexError: request = None
       if request and request.finished:
+        log_httpreq(DBG.HTTP_CTRL, request, 'CHKO request finished, discard')
         self._rq.popleft()
         continue
 
       if not self._pq.nonempty():
         # no packets, oh well
-        continue
+        log_httpreq(DBG.HTTP_CTRL, request, 'CHKO no packets, OUT-DONE')
+        break
 
       if request is None:
         # no request
+        log_httpreq(DBG.HTTP_CTRL, request, 'CHKO no request, OUT-DONE')
         break
 
+      log_httpreq(DBG.HTTP_CTRL, request, 'CHKO processing')
       # request, and also some non-expired packets
       self._pq.process((lambda: request.sentLength),
                        request.write,
                        self.max_batch_down)
 
       assert(request.sentLength)
-      self._rq.popLeft()
+      self._rq.popleft()
       request.finish()
+      log_httpreq(DBG.HTTP, request, 'complete')
       # round again, looking for more to do
 
     while len(self._rq) > self.target_requests_outstanding:
       request = self._rq.popleft()
+      log_httpreq(DBG.HTTP, request, 'CHKO above target, returning empty')
       request.finish()
 
-class IphttpResource(twisted.web.resource.Resource):
-  isLeaf = True
-  def render_POST(self, request):
-    # find client, update config, etc.
-    metadata = request.args['m']
-    (ci_s, pw, tro) = metadata.split(b'\n')[0:3]
-    ci = ipaddr(ci_s)
-    cl = clients[ci]
-    if pw != cl.pw: raise ValueError('bad password')
+def process_request(request, desca):
+  # find client, update config, etc.
+  metadata = request.args['m']
+  metadata = metadata.split(b'\n')
+  (ci_s, pw, tro) = metadata.split(b'\n')[0:3]
+  desca['m'] = [ci_s, tro]
+  ci = ipaddr(ci_s)
+  desca['ci'] = ci
+  cl = clients[ci]
+  if pw != cl.pw: raise ValueError('bad password')
+  desca['pwok'=True]
+
+  if tro != cl.target_requests_outstanding:
+    raise ValueError('tro must be %d' % cl.target_requests_outstanding)
 
-    if pw != cl.target_requests_outstanding:
-      raise ...
+  try:
+    d = request.args['d']
+    desca['d'] = d
+  except KeyError: d = ''
 
-    try: d = request.args['d']
-    except KeyError: d = ''
+  cl.process_arriving_data(d)
+  cl.new_request(request)
 
-    cl.process_arriving_data(d)
-    cl.new_request(request)
+class IphttpResource(twisted.web.resource.Resource):
+  isLeaf = True
+  def render_POST(self, request):
+    desca = {'d': None}
+    try: process_request(request, desca)
+    except Exception as e:
+      emsg = str(e).encode('utf-8')
+      log_http(desca, 'EXCEPTION ' + emsg)
+      request.setHeader('Content-Type','text/plain; charset="utf-8"')
+      request.setResponseCode(400)
+      return emsg
+    log_http(desca, '... [%s]' % id(request))
+    return NOT_DONE_YET
 
   def render_GET(self, request):
+    log_debug(DBG.HTTP, 'GET request')
     return b'<html><body>hippotat</body></html>'
 
 def start_http():
@@ -143,6 +178,7 @@ def start_http():
   for sa in c.saddrs:
     ep = sa.make_endpoint()
     crash_on_defer(ep.listen(site))
+    log_debug(DBG.INIT, 'listening on %s' % sa)
 
 #---------- config and setup ----------