do not require --kafka-capture-feed-topic to make the kafka capture feed work (it can be configured per job or per site)

setup.py

@@ -51,7 +51,7 @@ except:
 
 setuptools.setup(
         name='warcprox',
-        version='2.0.dev22',
+        version='2.0.dev23',
         description='WARC writing MITM HTTP/S proxy',
         url='https://github.com/internetarchive/warcprox',
         author='Noah Levitt',

warcprox/kafkafeed.py

@@ -1,24 +1,24 @@
-#
+'''
-# warcprox/kafkafeed.py - support for publishing information about archived
+warcprox/kafkafeed.py - support for publishing information about archived
-# urls to apache kafka
+urls to apache kafka
-#
+
-# Copyright (C) 2015-2016 Internet Archive
+Copyright (C) 2015-2016 Internet Archive
-#
+
-# This program is free software; you can redistribute it and/or
+This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
+modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
+as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
+of the License, or (at your option) any later version.
-#
+
-# This program is distributed in the hope that it will be useful,
+This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
+but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
+GNU General Public License for more details.
-#
+
-# You should have received a copy of the GNU General Public License
+You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
+along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
-# USA.
+USA.
-#
+'''
 
 import kafka
 import datetime
@@ -29,7 +29,7 @@ from hanzo import warctools
 class CaptureFeed:
     logger = logging.getLogger('warcprox.kafkafeed.CaptureFeed')
 
-    def __init__(self, broker_list, topic):
+    def __init__(self, broker_list, topic=None):
         self.broker_list = broker_list
         self.topic = topic
         self._producer = kafka.KafkaProducer(bootstrap_servers=broker_list)
@@ -38,6 +38,10 @@ class CaptureFeed:
         if records[0].type not in (b'revisit', b'response'):
             return
 
+        topic = recorded_url.warcprox_meta.get('capture-feed-topic', self.topic)
+        if not topic:
+            return
+
         try:
             payload_digest = records[0].get_header(warctools.WarcRecord.PAYLOAD_DIGEST).decode('utf-8')
         except:
@@ -72,8 +76,6 @@ class CaptureFeed:
             for (k,v) in recorded_url.warcprox_meta['capture-feed-extra-fields'].items():
                 d[k] = v
 
-        topic = recorded_url.warcprox_meta.get('capture-feed-topic', self.topic)
-
         msg = json.dumps(d, separators=(',', ':')).encode('utf-8')
         self.logger.debug('feeding kafka topic=%s msg=%s', repr(topic), msg)
         self._producer.send(topic, msg)

warcprox/main.py

@@ -34,7 +34,6 @@ import hashlib
 import argparse
 import os
 import socket
-import pprint
 import traceback
 import signal
 import threading
@@ -118,18 +117,19 @@ def dump_state(signum=None, frame=None):
     '''
     Signal handler, logs stack traces of active threads.
     '''
-    pp = pprint.PrettyPrinter(indent=4)
     state_strs = []
 
     for th in threading.enumerate():
         try:
             state_strs.append(str(th))
         except AssertionError:
-            state_strs.append("<n/a:AssertionError>")
+            state_strs.append('<n/a:AssertionError>')
         stack = traceback.format_stack(sys._current_frames()[th.ident])
-        state_strs.append("".join(stack))
+        state_strs.append(''.join(stack))
 
-    logging.warn("dumping state (caught signal {})\n{}".format(signum, "\n".join(state_strs)))
+    logging.warn(
+            'dumping state (caught signal %s)\n%s',
+            signum, '\n'.join(state_strs))
 
 def init_controller(args):
     '''
@@ -171,8 +171,9 @@ def init_controller(args):
         stats_db = warcprox.stats.StatsDb(args.stats_db_file, options=options)
         listeners.append(stats_db)
 
-    if args.kafka_broker_list and args.kafka_capture_feed_topic:
+    if args.kafka_broker_list:
-        kafka_capture_feed = warcprox.kafkafeed.CaptureFeed(args.kafka_broker_list, args.kafka_capture_feed_topic)
+        kafka_capture_feed = warcprox.kafkafeed.CaptureFeed(
+                args.kafka_broker_list, args.kafka_capture_feed_topic)
         listeners.append(kafka_capture_feed)
 
     recorded_url_q = queue.Queue(maxsize=args.queue_size)

warcprox/warcproxy.py

@@ -132,8 +132,6 @@ class WarcProxyHandler(warcprox.mitmproxy.MitmProxyHandler):
         # to apply this rule if the requested url is within domain
         bucket0_fields = bucket0.split(':')
         if len(bucket0_fields) == 2:
-            self.logger.info(
-                    'checking %s:%s', repr(limit_key), repr(limit_value))
             if not warcprox.host_matches_ip_or_domain(
                     self.hostname, bucket0_fields[1]):
                 return # else host matches, go ahead and enforce the limit