279 lines
8.7 KiB
Python
Executable file
279 lines
8.7 KiB
Python
Executable file
#!/usr/bin/env python
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import os, sys, re, datetime, argparse, traceback, tempfile, json
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import html5lib
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import debug # pyflakes:ignore
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# Set up import path to find our own Django
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basedir = os.path.abspath(os.path.join(os.path.dirname(__file__), "../"))
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if not basedir in sys.path:
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sys.path.insert(0, basedir)
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# Parse args now, so we can use custom settings when importing django
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parser = argparse.ArgumentParser(
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description="""Perform a test crawl of the project. For each found URL, the HTTP
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response status is printed. If it's not OK/redirect, FAIL is
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printed - in case of errors, a stacktrace is also included.""")
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parser.add_argument('urls', metavar='URL', nargs='*',
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help='One or more URLs to start the crawl from')
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parser.add_argument('--urls', '-u', dest='url_file',
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help='file with URLs to start the crawl from')
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parser.add_argument('--slow', dest='slow_threshold', type=float, default=1.0,
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help='responses taking longer than this (in seconds) results in SLOW being printed')
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parser.add_argument('--settings', dest='settings', help='custom settings file')
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parser.add_argument('--logfile', dest='logfile', help='write to logfile')
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args = parser.parse_args()
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# Import Django, call setup()
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os.environ.setdefault("DJANGO_SETTINGS_MODULE", args.settings or "ietf.settings")
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import django
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import django.test
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django.setup()
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# prevent memory from leaking when settings.DEBUG=True
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from django.db import connection
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class DontSaveQueries(object):
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def append(self, x):
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pass
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connection.queries = DontSaveQueries()
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from ietf.name.models import DocTypeName
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# --- Constants ---
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MAX_URL_LENGTH = 500
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# --- Functions ---
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def strip_url(url):
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if url.startswith("http://testserver"):
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url = url[len("http://testserver"):]
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return url
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def extract_html_urls(content):
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for m in re.finditer(r'(<(?:a|link) [^>]*href=[\'"]([^"]+)[\'"][^>]*>)', content):
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if re.search(r'rel=["\']?nofollow["\']', m.group(1)):
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continue
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url = strip_url(m.group(2))
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if len(url) > MAX_URL_LENGTH:
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continue # avoid infinite GET parameter appendages
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if not url.startswith("/"):
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continue
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if url.startswith("//"):
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continue
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yield url
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def extract_tastypie_urls(content):
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VISIT_OBJECTS = False
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VISIT_NEXT = False
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data = json.loads(content)
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for item in data:
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if type(data[item]) is dict:
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if "list_endpoint" in data[item]:
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uri = data[item]["list_endpoint"]
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yield uri
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if VISIT_NEXT:
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if "meta" in data and "next" in data["meta"]:
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uri = data["meta"]["next"]
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if uri != None:
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yield uri
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if VISIT_OBJECTS:
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if "objects" in data:
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object_list = data["objects"]
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for i in range(len(object_list)):
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if "resource_uri" in object_list[i]:
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uri = object_list[i]["resource_uri"]
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yield uri
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def check_html_valid(url, response):
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global parser, validated_urls, doc_types, warnings
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# derive a key for urls like this by replacing primary keys
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key = url
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key = re.sub("/[0-9.]+/", "/nnnn/", key)
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key = re.sub("/.+@.+/", "/x@x.org/", key)
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key = re.sub("#.*$", "", key)
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key = re.sub("\?.*$", "", key)
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key = re.sub("/rfc[0-9]+/", "/rfcnnnn/", key)
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key = re.sub("/wg/[a-z0-9-]+/", "/wg/foo/", key)
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key = re.sub("/rg/[a-z0-9-]+/", "/rg/foo/", key)
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for slug in doc_types:
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key = re.sub("/%s-.*/"%slug, "/%s-nnnn/"%slug, key)
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if not key in validated_urls:
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if hasattr(response, "content"):
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content = response.content
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else:
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content = response.streaming_content
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try:
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validated_urls[key] = True
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parser.parse(content)
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except Exception:
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e = SyntaxWarning("ParseError")
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for err in parser.errors:
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pos, code, data = err
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tags.append(u"WARN invalid html: Position %s: %s" % (pos, code))
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warnings += 1
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def log(s):
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print(s)
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if logfile:
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logfile.write(s)
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logfile.write('\n')
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def get_referrers(url):
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ref_list = []
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while url in referrers:
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url = referrers[url]
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if url in ref_list:
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log("Circular referral list, discovered at %s" % url)
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break
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ref_list.append(url)
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return ref_list
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# --- GLobals ---
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slow_threshold = args.slow_threshold
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visited = set()
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urls = {} # url -> referrer
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referrers = {}
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initial_urls = []
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initial_urls.extend(args.urls)
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if args.url_file:
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with open(args.url_file) as f:
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for line in f:
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line = line.partition("#")[0].strip()
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if line:
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initial_urls.append(line)
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if not initial_urls:
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initial_urls.append("/")
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initial_urls.append("/api/v1")
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for url in initial_urls:
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urls[url] = "[initial]"
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parser = html5lib.HTMLParser(strict=True)
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validated_urls = {}
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doc_types = [ t.slug for t in DocTypeName.objects.all() ]
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errors = 0
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warnings = 0
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count = 0
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start_time = datetime.datetime.now()
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client = django.test.Client(Accept='text/html,text/plain,application/json')
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logfile = None
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if args.logfile:
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logfile = open(args.logfile, "w")
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validated_urls = {}
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# --- Main ---
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if __name__ == "__main__":
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while urls:
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url, referrer = urls.popitem()
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visited.add(url)
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try:
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timestamp = datetime.datetime.now()
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r = client.get(url)
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elapsed = datetime.datetime.now() - timestamp
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except KeyboardInterrupt:
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log(" ... was fetching %s" % url)
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sys.exit(1)
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except:
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log("500 %.3fs %s FAIL (from: [ %s ])" % ((datetime.datetime.now() - timestamp).total_seconds(), url, (",\n\t".join(get_referrers(url)))))
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log("=============")
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log(traceback.format_exc())
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log("=============")
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errors += 1
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else:
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tags = []
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if r.status_code in (301, 302):
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u = strip_url(r["Location"])
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if u not in visited and u not in urls:
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urls[u] = referrer # referrer is original referrer, not redirected url
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referrers[u] = referrer
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elif r.status_code == 200:
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ctype = r["Content-Type"]
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if ";" in ctype:
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ctype = ctype[:ctype.index(";")]
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if ctype == "text/html":
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try:
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for u in extract_html_urls(r.content):
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if u not in visited and u not in urls:
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urls[u] = url
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referrers[u] = url
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check_html_valid(url, r)
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except:
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log("error extracting HTML urls from %s" % url)
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log("=============")
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log(traceback.format_exc())
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log("=============")
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elif ctype == "application/json":
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try:
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for u in extract_tastypie_urls(r.content):
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if u not in visited and u not in urls:
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urls[u] = url
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referrers[u] = url
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except:
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log("error extracting urls from %s" % url)
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log("=============")
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log(traceback.format_exc())
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log("=============")
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else:
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tags.append(u"FAIL for %s\n (from %s)" % (url, referrer))
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errors += 1
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if elapsed.total_seconds() > slow_threshold:
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tags.append("SLOW")
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acc_time = (timestamp - start_time).total_seconds()
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acc_secs = (timestamp - start_time).total_seconds()
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hrs = acc_secs // (60*60)
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min = (acc_secs % (60*60)) // 60
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sec = acc_secs % 60
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if (len(visited) % 100) == 1:
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log("\nElapsed Visited Queue Code Time Url ... Notes")
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log("%2d:%02d:%02d %7d %6d %s %6.3fs %s %s" % (hrs,min,sec, len(visited), len(urls), r.status_code, elapsed.total_seconds(), url, " ".join(tags)))
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if logfile:
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logfile.close()
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sys.stderr.write("Output written to %s\n\n" % logfile.name)
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if errors > 0:
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sys.stderr.write("Found %s errors, grep output for FAIL for details\n" % errors)
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sys.exit(1)
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else:
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sys.stderr.write("Found no errors.")
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if warnings > 0:
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sys.stderr.write("Found %s warnings, grep output for WARN for details\n" % warnings)
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sys.exit(0)
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else:
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sys.stderr.write("Found no warnings.")
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