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#!/usr/bin/python2.4
#
# Copyright 2009 Canonical Ltd. This software is licensed under the
# GNU Affero General Public License version 3 (see the file LICENSE).
"""
Process LinkChecker .csv results for the staging server, stuff them into
a database and generate a report suitable for spamming developers with.
"""
__metaclass__ = type
# pylint: disable-msg=W0403
import _pythonpath
import csv, re, sys
from StringIO import StringIO
from optparse import OptionParser
from sqlobject import StringCol, IntCol, BoolCol, FloatCol, DatabaseIndex
from canonical.database.datetimecol import UtcDateTimeCol
from canonical.database.constants import UTC_NOW
from canonical.launchpad.scripts import db_options, logger_options, logger
from canonical.lp import initZopeless
from canonical.database.sqlbase import SQLBase
from canonical.config import config
from canonical.launchpad.mail import simple_sendmail
class CheckedLink(SQLBase):
_table = 'CheckedLink'
urlname = StringCol(notNull=True)
recursionlevel = IntCol(notNull=True)
parentname = StringCol(notNull=True)
baseref = StringCol(notNull=True)
result = StringCol(notNull=True)
resultcode = IntCol(notNull=True)
warningstring = StringCol(notNull=True)
infostring = StringCol(notNull=True)
valid = BoolCol(notNull=True)
url = StringCol(notNull=True, unique=True, alternateID=True)
line = IntCol(notNull=True)
col = IntCol(notNull=True)
name = StringCol(notNull=True)
dltime = FloatCol()
dlsize = IntCol()
checktime = FloatCol(notNull=True)
brokensince = UtcDateTimeCol(notNull=False, default=UTC_NOW)
#cached = BoolCol(notNull=True)
resultcode_index = DatabaseIndex('resultcode')
recursionlevel_index = DatabaseIndex('recursionlevel')
def main(csvfile, log):
# Where we store broken links
broken = set()
# Suck in the csv file, updating the database and adding to the broken set
reader = csv.DictReader(
(line.replace('\0','') for line in csvfile
if not line.startswith('#'))
)
for row in reader:
# Get the result code
if row['valid']:
row['resultcode'] = 200
row['result'] = '200 Ok'
else:
m = re.search('^(\d+)', row['result'] or '')
if m is None:
if row['result'] == 'URL is empty':
continue
elif 'The read operation timed out' in row['result']:
row['result'] = '601 %s' % row['result']
row['resultcode'] = 601
else:
row['result'] = '602 %s' % row['result']
row['resultcode'] = 602
else:
row['resultcode'] = int(m.group(1))
# Cast input and nuke crap (to avoid confusing SQLObject)
row['recursionlevel'] = int(row['recursionlevel'])
row['valid'] = row['valid'] in ('True', 'true')
row['line'] = int(row['line'])
row['col'] = int(row['column']) # Renamed - column is a SQL keyword
del row['column']
row['dltime'] = float(row['dltime'])
row['dlsize'] = int(row['dlsize'])
row['checktime'] = float(row['checktime'])
del row['cached']
if row['resultcode'] < 400:
row['brokensince'] = None
try:
link = CheckedLink.byUrl(row['url'])
link.set(**row)
except LookupError:
link = CheckedLink(**row)
broken.add(link)
total = len(broken)
# Delete any entries that were not spidered
# XXX StuartBishop 2005-07-04: Only if older than a threshold.
for link in CheckedLink.select():
if link in broken:
continue
link.destroySelf()
new_broken_links = CheckedLink.select("""
resultcode in (404, 500, 601)
AND brokensince > CURRENT_TIMESTAMP AT TIME ZONE 'UTC'
- '1 day 12 hours'::interval
""", orderBy=["recursionlevel", "parentname", "url"])
rep = report("New Arrivals", new_broken_links, total, brokensince=False)
old_broken_links = CheckedLink.select("""
resultcode in (404, 500, 601)
AND brokensince <= CURRENT_TIMESTAMP AT TIME ZONE 'UTC'
- '1 day 12 hours'::interval
AND brokensince >
CURRENT_TIMESTAMP AT TIME ZONE 'UTC' - '14 days'::interval
""", orderBy=["recursionlevel", "parentname", "url"])
rep += report("Old Favorites", old_broken_links, total, brokensince=True)
antique_broken_links = CheckedLink.select("""
resultcode in (404, 500, 601)
AND brokensince <=
CURRENT_TIMESTAMP AT TIME ZONE 'UTC' - '14 days'::interval
""", orderBy=["brokensince", "recursionlevel", "parentname", "url"])
rep += report(
"Hall of Shame", antique_broken_links, total, brokensince=True
)
if not options.email:
# Print to stdout in system encoding - might raise UnicodeError on
# some systems. Tough.
print rep
else:
# Override this setting - we are only here if email explicitly
# requested on the command line.
send_email_data = """
[zopeless]
send_email: True
"""
config.push('send_email_data', send_email_data)
simple_sendmail(
"noreply@canonical.com", [options.email], options.subject,
rep, {'Keywords': 'LinkChecker', 'X-Fnord': 'Fnord'}
)
config.pop('send_email_data')
def report(title, links, total, brokensince=True):
out = StringIO()
heading = "%s (%d/%d)" % (title, links.count(), total)
print >> out, heading
print >> out, "=" * len(heading)
def print_row(title, value):
print >> out, "%-7s: %s" % (title, str(value))
for link in links:
print_row("Link", link.url)
print_row("Parent", link.parentname)
print_row("Result", link.result)
if link.warningstring:
print_row("Warning", link.warningstring)
if brokensince:
print_row("Since", link.since.strftime('%A %d %B %Y'))
print >> out
print >> out
return out.getvalue()
if __name__ == '__main__':
parser = OptionParser("Usage: %prog [OPTIONS] [input.csv]")
db_options(parser)
logger_options(parser)
parser.add_option(
"-c", "--create", action="store_true", dest="create",
default=False, help="Create the database tables"
)
parser.add_option(
"-s", "--subject", dest="subject", help="Email using SUBJECT",
metavar="SUBJECT", default="LinkChecker report"
)
parser.add_option(
"-t", "--to", dest="email", help="Email to ADDRESS",
metavar="ADDRESS", default=None
)
options, args = parser.parse_args()
log = logger(options)
if len(args) == 0 or args[0] == '-':
log.debug("Reading from stdin")
csvfile = sys.stdin
else:
csvfile = open(args[0], 'rb')
ztm = initZopeless(implicitBegin=True)
if options.create:
# Create the table if it doesn't exist. Unfortunately, this is broken
# so we only create the table if requested on the command line
CheckedLink.createTable(ifNotExists=True)
main(csvfile, log)
ztm.commit()
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