chiark / gitweb /
wip new config
[hippotat.git] / client
diff --git a/client b/client
index 49a10ef..e5d4e00 100755 (executable)
--- a/client
+++ b/client
@@ -2,6 +2,11 @@
 
 from hippotat import *
 
+import twisted.web
+import twisted.web.client
+
+import io
+
 client_cs = None
 
 def set_client(ci,cs,pw):
@@ -11,6 +16,7 @@ def set_client(ci,cs,pw):
   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 process_cfg():
@@ -24,40 +30,208 @@ def process_cfg():
     c.url = cfg.get('server','url')
   except NoOptionError:
     process_cfg_saddrs()
-    sa = c.saddrs[0].url()
+    c.url = c.saddrs[0].url()
 
   process_cfg_clients(set_client)
 
   c.routes = cfg.get('virtual','routes')
-  c.max_queue_time = cfg.get(client_cs, 'max_queue_time')
+  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 = 0
+outstanding = { }
+
+def log_outstanding():
+  log_debug(DBG.CTRL_DUMP, 'OS %s' % outstanding)
 
 def start_client():
   global queue
-  queue = PacketQueue(c.max_queue_time)
+  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 outstanding >= c.max_outstanding: break
-    elements = { }
-    if not queue.nonempty():
-      if outstanding >= c.target_
+    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))
 
-  while (outstanding <  and
-         (queue.notempty() or outstanding < c.
+  log_outstanding()
 
-common_startup()
-process_cfg()
+common_startup(process_cfg)
+start_client()
 start_ipif(c.ipif_command, outbound)
+check_outbound()
 common_run()