mirror of
https://github.com/internetarchive/warcprox.git
synced 2025-01-18 13:22:09 +01:00
basic limits enforcement is working
This commit is contained in:
Noah Levitt
parent
d37d2d71e3
commit
4ce89e6d03
@ -8,6 +8,7 @@ import warcprox.mitmproxy as mitmproxy
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import warcprox.writer as writer
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import warcprox.warc as warc
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import warcprox.writerthread as writerthread
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import warcprox.stats as stats
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def digest_str(hash_obj, base32):
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import base64
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@ -57,6 +57,8 @@ def _build_arg_parser(prog=os.path.basename(sys.argv[0])):
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default=False, help='write digests in Base32 instead of hex')
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arg_parser.add_argument('-j', '--dedup-db-file', dest='dedup_db_file',
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default='./warcprox-dedup.db', help='persistent deduplication database file; empty string or /dev/null disables deduplication')
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arg_parser.add_argument('--stats-db-file', dest='stats_db_file',
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default='./warcprox-stats.db', help='persistent statistics database file; empty string or /dev/null disables deduplication')
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arg_parser.add_argument('-P', '--playback-port', dest='playback_port',
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default=None, help='port to listen on for instant playback')
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arg_parser.add_argument('--playback-index-db-file', dest='playback_index_db_file',
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@ -112,6 +114,12 @@ def main(argv=sys.argv):
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else:
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dedup_db = warcprox.dedup.DedupDb(args.dedup_db_file)
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if args.stats_db_file in (None, '', '/dev/null'):
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logging.info('statistics tracking disabled')
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stats_db = None
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else:
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stats_db = warcprox.stats.StatsDb(args.stats_db_file)
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recorded_url_q = queue.Queue()
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ca_name = 'Warcprox CA on {}'.format(socket.gethostname())[:64]
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@ -121,7 +129,8 @@ def main(argv=sys.argv):
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proxy = warcprox.warcproxy.WarcProxy(
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server_address=(args.address, int(args.port)), ca=ca,
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recorded_url_q=recorded_url_q,
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digest_algorithm=args.digest_algorithm)
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digest_algorithm=args.digest_algorithm,
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stats_db=stats_db)
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if args.playback_port is not None:
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playback_index_db = warcprox.playback.PlaybackIndexDb(args.playback_index_db_file)
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@ -141,7 +150,8 @@ def main(argv=sys.argv):
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writer_pool=warcprox.writer.WarcWriterPool(default_warc_writer)
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warc_writer_thread = warcprox.writerthread.WarcWriterThread(
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recorded_url_q=recorded_url_q, writer_pool=writer_pool,
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dedup_db=dedup_db, playback_index_db=playback_index_db)
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dedup_db=dedup_db, playback_index_db=playback_index_db,
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stats_db=stats_db)
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controller = warcprox.controller.WarcproxController(proxy, warc_writer_thread, playback_proxy)
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97
warcprox/stats.py
Normal file
97
warcprox/stats.py
Normal file
@ -0,0 +1,97 @@
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# vim:set sw=4 et:
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from __future__ import absolute_import
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try:
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import dbm.gnu as dbm_gnu
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except ImportError:
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try:
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import gdbm as dbm_gnu
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except ImportError:
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import anydbm as dbm_gnu
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import logging
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import os
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import json
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from hanzo import warctools
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class StatsDb:
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logger = logging.getLogger("warcprox.stats.StatsDb")
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def __init__(self, dbm_file='./warcprox-stats.db'):
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if os.path.exists(dbm_file):
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self.logger.info('opening existing stats database {}'.format(dbm_file))
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else:
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self.logger.info('creating new stats database {}'.format(dbm_file))
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self.db = dbm_gnu.open(dbm_file, 'c')
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def close(self):
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self.db.close()
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def sync(self):
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try:
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self.db.sync()
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except:
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pass
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def _empty_bucket(self):
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return {
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"total": {
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"urls": 0,
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"wire_bytes": 0,
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# "warc_bytes": 0,
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},
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"new": {
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"urls": 0,
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"wire_bytes": 0,
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# "warc_bytes": 0,
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},
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"revisit": {
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"urls": 0,
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"wire_bytes": 0,
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# "warc_bytes": 0,
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},
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}
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def value(self, bucket0="__all__", bucket1=None, bucket2=None):
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if bucket0 in self.db:
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bucket0_stats = json.loads(self.db[bucket0].decode("utf-8"))
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if bucket1:
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if bucket2:
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return bucket0_stats[bucket1][bucket2]
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else:
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return bucket0_stats[bucket1]
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else:
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return bucket0_stats
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else:
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return None
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def tally(self, recorded_url, records):
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buckets = ["__all__"]
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if (recorded_url.warcprox_meta
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and "stats" in recorded_url.warcprox_meta
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and "buckets" in recorded_url.warcprox_meta["stats"]):
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buckets.extend(recorded_url.warcprox_meta["stats"]["buckets"])
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else:
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buckets.append("__unspecified__")
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for bucket in buckets:
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if bucket in self.db:
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bucket_stats = json.loads(self.db[bucket].decode("utf-8"))
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else:
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bucket_stats = self._empty_bucket()
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bucket_stats["total"]["urls"] += 1
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bucket_stats["total"]["wire_bytes"] += recorded_url.size
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if records[0].get_header(warctools.WarcRecord.TYPE) == warctools.WarcRecord.REVISIT:
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bucket_stats["revisit"]["urls"] += 1
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bucket_stats["revisit"]["wire_bytes"] += recorded_url.size
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else:
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bucket_stats["new"]["urls"] += 1
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bucket_stats["new"]["wire_bytes"] += recorded_url.size
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self.db[bucket] = json.dumps(bucket_stats, separators=(',',':')).encode("utf-8")
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@ -138,8 +138,13 @@ def warcprox_(request):
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recorded_url_q = queue.Queue()
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f = tempfile.NamedTemporaryFile(prefix='warcprox-test-stats-', suffix='.db', delete=False)
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f.close()
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stats_db_file = f.name
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stats_db = warcprox.stats.StatsDb(stats_db_file)
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proxy = warcprox.warcproxy.WarcProxy(server_address=('localhost', 0), ca=ca,
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recorded_url_q=recorded_url_q)
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recorded_url_q=recorded_url_q, stats_db=stats_db)
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warcs_dir = tempfile.mkdtemp(prefix='warcprox-test-warcs-')
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@ -160,7 +165,8 @@ def warcprox_(request):
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writer_pool = warcprox.writer.WarcWriterPool(default_warc_writer)
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warc_writer_thread = warcprox.writerthread.WarcWriterThread(
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recorded_url_q=recorded_url_q, writer_pool=writer_pool,
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dedup_db=dedup_db, playback_index_db=playback_index_db)
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dedup_db=dedup_db, playback_index_db=playback_index_db,
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stats_db=stats_db)
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warcprox_ = warcprox.controller.WarcproxController(proxy, warc_writer_thread, playback_proxy)
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logging.info('starting warcprox')
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@ -172,7 +178,7 @@ def warcprox_(request):
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logging.info('stopping warcprox')
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warcprox_.stop.set()
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warcprox_thread.join()
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for f in (ca_file, ca_dir, warcs_dir, playback_index_db_file, dedup_db_file):
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for f in (ca_file, ca_dir, warcs_dir, playback_index_db_file, dedup_db_file, stats_db_file):
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if os.path.isdir(f):
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logging.info('deleting directory {}'.format(f))
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shutil.rmtree(f)
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@ -389,7 +395,7 @@ def test_dedup_https(https_daemon, warcprox_, archiving_proxies, playback_proxie
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def test_limits(http_daemon, archiving_proxies):
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url = 'http://localhost:{}/a/b'.format(http_daemon.server_port)
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request_meta = {"stats":{"classifiers":["job1"]},"limits":{"job1.total.urls":10}}
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request_meta = {"stats":{"buckets":["job1"],"limits":{"job1.total.urls":10}}}
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headers = {"Warcprox-Meta": json.dumps(request_meta)}
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for i in range(10):
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@ -400,11 +406,11 @@ def test_limits(http_daemon, archiving_proxies):
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response = requests.get(url, proxies=archiving_proxies, headers=headers, stream=True)
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assert response.status_code == 420
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assert response.reason == "Limit Reached"
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response_meta = {"stats":{"job1":{"total":{"urls":10},"new":{"urls":1},"revisit":{"urls":9}}}}
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assert json.loads(headers["warcprox-meta"]) == response_meta
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assert response.headers["content-type"] == "text/plain;charset=utf-8"
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assert response.raw.data == b"request rejected by warcprox: reached limit job1.total.urls=10\n"
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assert response.reason == "Limit reached"
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# response_meta = {"stats":{"job1":{"total":{"urls":10},"new":{"urls":1},"revisit":{"urls":9}}}}
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# assert json.loads(headers["warcprox-meta"]) == response_meta
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# assert response.headers["content-type"] == "text/plain;charset=utf-8"
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# assert response.raw.data == b"request rejected by warcprox: reached limit job1.total.urls=10\n"
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if __name__ == '__main__':
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pytest.main()
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@ -153,13 +153,38 @@ class ProxyingRecordingHTTPResponse(http_client.HTTPResponse):
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class WarcProxyHandler(warcprox.mitmproxy.MitmProxyHandler):
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# self.server is WarcProxy
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logger = logging.getLogger("warcprox.warcprox.WarcProxyHandler")
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def _enforce_limits(self, warcprox_meta):
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self.logger.info("warcprox_meta=%s", warcprox_meta)
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if (warcprox_meta and "stats" in warcprox_meta
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and "limits" in warcprox_meta["stats"]):
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self.logger.info("warcprox_meta['stats']['limits']=%s", warcprox_meta['stats']['limits'])
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for item in warcprox_meta["stats"]["limits"].items():
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self.logger.info("item=%s", item)
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key, limit = item
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self.logger.info("limit %s=%d", key, limit)
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bucket0, bucket1, bucket2 = key.rsplit(".", 2)
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self.logger.info("%s::%s::%s", bucket0, bucket1, bucket2)
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value = self.server.stats_db.value(bucket0, bucket1, bucket2)
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self.logger.info("stats value is %s", value)
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if value and value >= limit:
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self.send_error(420, "Limit reached")
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self.connection.close()
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return
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def _proxy_request(self):
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# Build request
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req_str = '{} {} {}\r\n'.format(self.command, self.path, self.request_version)
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warcprox_meta = self.headers.get('Warcprox-Meta')
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warcprox_meta = None
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raw_warcprox_meta = self.headers.get('Warcprox-Meta')
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if raw_warcprox_meta:
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warcprox_meta = json.loads(raw_warcprox_meta)
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if self._enforce_limits(warcprox_meta):
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return
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# Swallow headers that don't make sense to forward on, i.e. most
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# hop-by-hop headers, see http://tools.ietf.org/html/rfc2616#section-13.5
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@ -241,7 +266,10 @@ class WarcProxyHandler(warcprox.mitmproxy.MitmProxyHandler):
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# stream this?
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request_data = self.rfile.read(int(self.headers['Content-Length']))
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warcprox_meta = self.headers.get('Warcprox-Meta')
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warcprox_meta = None
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raw_warcprox_meta = self.headers.get('Warcprox-Meta')
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if raw_warcprox_meta:
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warcprox_meta = json.loads(raw_warcprox_meta)
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rec_custom = RecordedUrl(url=self.url,
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request_data=request_data,
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@ -295,7 +323,7 @@ class RecordedUrl:
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self.response_recorder = response_recorder
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if warcprox_meta:
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self.warcprox_meta = json.loads(warcprox_meta)
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self.warcprox_meta = warcprox_meta
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else:
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self.warcprox_meta = {}
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@ -319,7 +347,8 @@ class WarcProxy(socketserver.ThreadingMixIn, http_server.HTTPServer):
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def __init__(self, server_address=('localhost', 8000),
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req_handler_class=WarcProxyHandler, bind_and_activate=True,
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ca=None, recorded_url_q=None, digest_algorithm='sha1'):
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ca=None, recorded_url_q=None, digest_algorithm='sha1',
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stats_db=None):
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http_server.HTTPServer.__init__(self, server_address, req_handler_class, bind_and_activate)
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self.digest_algorithm = digest_algorithm
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@ -337,6 +366,8 @@ class WarcProxy(socketserver.ThreadingMixIn, http_server.HTTPServer):
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else:
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self.recorded_url_q = queue.Queue()
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self.stats_db = stats_db
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def server_activate(self):
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http_server.HTTPServer.server_activate(self)
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self.logger.info('WarcProxy listening on {0}:{1}'.format(self.server_address[0], self.server_address[1]))
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@ -22,7 +22,7 @@ import warcprox
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class WarcWriterThread(threading.Thread):
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logger = logging.getLogger("warcprox.warcproxwriter.WarcWriterThread")
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def __init__(self, recorded_url_q=None, writer_pool=None, dedup_db=None, playback_index_db=None):
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def __init__(self, recorded_url_q=None, writer_pool=None, dedup_db=None, playback_index_db=None, stats_db=None):
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"""recorded_url_q is a queue.Queue of warcprox.warcprox.RecordedUrl."""
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threading.Thread.__init__(self, name='WarcWriterThread')
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self.recorded_url_q = recorded_url_q
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@ -33,6 +33,7 @@ class WarcWriterThread(threading.Thread):
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self.writer_pool = WarcWriterPool()
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self.dedup_db = dedup_db
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self.playback_index_db = playback_index_db
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self.stats_db = stats_db
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self._last_sync = time.time()
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def run(self):
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@ -106,7 +107,12 @@ class WarcWriterThread(threading.Thread):
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_decode(records[0].warc_filename),
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records[0].offset))
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def _update_stats(self, recorded_url, records):
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if self.stats_db:
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self.stats_db.tally(recorded_url, records)
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def _final_tasks(self, recorded_url, records):
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self._save_dedup_info(recorded_url, records)
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self._save_playback_info(recorded_url, records)
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self._update_stats(recorded_url, records)
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self._log(recorded_url, records)
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