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#!/usr/bin/python -tt
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
# copyright (c) 2008 Red Hat, Inc - written by Seth Vidal and Will Woods
import yum
import sys
import os
from yum.misc import getCacheDir, checksum
import urlparse
from yum import Errors
from optparse import OptionParser
import ConfigParser
# Subclass ConfigParser so that the options don't get lowercased. This is
# important given that they are path names.
class LocalConfigParser(ConfigParser.ConfigParser):
"""A subclass of ConfigParser which does not lowercase options"""
def optionxform(self, optionstr):
return optionstr
####
# take a file path to a repo as an option, verify all the metadata vs repomd.xml
# optionally go through packages and verify them vs the checksum in the primary
# Error values
BAD_REPOMD = 1
BAD_METADATA = 2
BAD_COMPS = 4
BAD_PACKAGES = 8
BAD_IMAGES = 16
# Testopia case/plan numbers
plan_number = 13
case_numbers = {'REPODATA': 56, 'CORE_PACKAGES': 57, 'COMPS': 58,
'BOOT_IMAGES': 59}
def get_schema_path():
"""Return the local path to the RELAX NG comps schema."""
# Depending on whether our distro uses versioned or unversioned docdirs
# (the former is true for Fedora < 20, see bug 998579), the schema file
# should be provided by yum at either of the following locations:
paths = ['/usr/share/doc/yum%s/comps.rng' % s
for s in ('', '-' + yum.__version__)]
for path in paths:
# Better than os.path.exists() as this also ensures we can actually
# read the file
try:
with open(path):
return path
except IOError:
continue
raise IOError(paths)
def testopia_create_run(plan):
'''Create a run of the given test plan. Returns the run ID.'''
run_id = 49 # STUB actually create the run
print "Testopia: created run %i of plan %i" % (run_id,plan)
return run_id
def testopia_report(run,case,result):
print " testopia: reporting %s for case %s in run %i" % (result,
str(case),run)
if type(case) == str:
case = case_numbers[case]
# STUB actually do the reporting
def checkfileurl(pkg):
pkg_path = pkg.remote_url
pkg_path = pkg_path.replace('file://', '')
(csum_type, csum) = pkg.returnIdSum()
try:
filesum = checksum(csum_type, pkg_path)
except Errors.MiscError:
return False
if filesum != csum:
return False
return True
def treeinfo_checksum(treeinfo):
# read treeinfo file into cp
# take checksums section
result = 0
cp = LocalConfigParser()
try:
cp.read(treeinfo)
except ConfigParser.MissingSectionHeaderError:
# Generally this means we failed to access the file
print " could not find sections in treeinfo file %s" % treeinfo
return BAD_IMAGES
except ConfigParser.Error:
print " could not parse treeinfo file %s" % treeinfo
return BAD_IMAGES
if not cp.has_section('checksums'):
print " no checksums section in treeinfo file %s" % treeinfo
return BAD_IMAGES
dir_path = os.path.dirname(treeinfo)
for opt in cp.options('checksums'):
fnpath = dir_path + '/%s' % opt
fnpath = os.path.normpath(fnpath)
csuminfo = cp.get('checksums', opt).split(':')
if len(csuminfo) < 2:
print " checksum information doesn't make any sense for %s." % opt
result = BAD_IMAGES
continue
if not os.path.exists(fnpath):
print " cannot find file %s listed in treeinfo" % fnpath
result = BAD_IMAGES
continue
csum = checksum(csuminfo[0], fnpath)
if csum != csuminfo[1]:
print " file %s %s does not match:\n ondisk %s vs treeinfo: %s" % (opt, csuminfo[0], csum, csuminfo[1])
result = BAD_IMAGES
continue
return result
def main():
parser = OptionParser()
parser.usage = """
verifytree - verify that a local yum repository is consistent
verifytree /path/to/repo"""
parser.add_option("-a","--checkall",action="store_true",default=False,
help="Check all packages in the repo")
parser.add_option("--nocomps", "--nogroups",action="store_true",
default=False,
help="Do not read and check comps")
parser.add_option("--noplugins",action="store_true",default=False,
help="Do not load any plugins")
parser.add_option("-t","--testopia",action="store",type="int",
help="Report results to the given testopia run number")
parser.add_option("-r","--treeinfo", action="store_true", default=False,
help="check the checksums of listed files in a .treeinfo file, if available")
opts, args = parser.parse_args()
if not args:
print "Must provide a file url to the repo"
sys.exit(1)
# FIXME: check that "args" is a valid dir before proceeding
# (exists, isdir, contains .treeinfo, etc)
url = args[0]
if url[0] == '/':
url = 'file://' + url
s = urlparse.urlsplit(url)[0]
h,d = urlparse.urlsplit(url)[1:3]
if s != 'file':
print "Must be a file:// url or you will not like this"
sys.exit(1)
repoid = '%s/%s' % (h, d)
repoid = repoid.replace('/', '_')
# Bad things happen if we're missing a trailing slash here
if url[-1] != '/':
url += '/'
basedir = url.replace('file://', '') # for a normal path thing
my = yum.YumBase()
if opts.noplugins:
my.preconf.init_plugins = False
my.conf.cachedir = getCacheDir()
my.repos.disableRepo('*')
newrepo = yum.yumRepo.YumRepository(repoid)
newrepo.name = repoid
newrepo.baseurl = [url]
newrepo.basecachedir = my.conf.cachedir
newrepo.metadata_expire = 0
newrepo.timestamp_check = False
newrepo.enablegroups = 1
# we want *all* metadata
newrepo.mdpolicy = 'group:all'
# add our new repo
my.repos.add(newrepo)
# enable that repo
my.repos.enableRepo(repoid)
# setup the repo dirs/etc
my.doRepoSetup(thisrepo=repoid)
# Initialize results and reporting
retval = 0
if opts.testopia:
run_id = testopia_create_run(opts.testopia)
report = lambda case,result: testopia_report(run_id,case,result)
else:
report = lambda case,result: None
# Check the metadata
print "Checking repodata:"
try:
md_types = newrepo.repoXML.fileTypes()
print " verifying repomd.xml with yum"
except yum.Errors.RepoError:
print " failed to load repomd.xml."
report('REPODATA','FAILED')
report('CORE_PACKAGES','BLOCKED')
report('COMPS','BLOCKED')
return retval | BAD_REPOMD
for md_type in md_types:
try:
print " verifying %s checksum" % md_type
newrepo.retrieveMD(md_type)
except Errors.RepoError, e:
print " %s metadata missing or does not match checksum" % md_type
retval = retval | BAD_METADATA
if retval & BAD_METADATA:
report('REPODATA','FAILED')
else:
report('REPODATA','PASSED')
if not opts.nocomps:
print "Checking groups (comps.xml):"
try:
print " verifying comps.xml with yum"
b = my.comps.compscount
comps = newrepo.getGroups()
except (Errors.GroupsError, Errors.RepoMDError):
print ' comps file missing or unparseable'
report('COMPS','FAILED')
retval = retval | BAD_COMPS
if not (retval & BAD_COMPS):
print " verifying comps.xml grammar with xmllint"
try:
schema = get_schema_path()
except IOError as e:
print ' could not read schema file, paths tried:'
for path in e.args[0]:
print ' ' + path
print (' make sure you have the latest version of yum '
'properly installed')
r = 1
else:
r = os.system("xmllint --noout --nowarning --relaxng %s %s" %
(schema, comps))
if r != 0:
retval = retval | BAD_COMPS
report('COMPS','FAILED')
else:
report('COMPS','PASSED')
# if we've got a .treeinfo file and we are told to check it, then do so
tr_path = basedir + '/.treeinfo'
if opts.treeinfo and os.path.exists(tr_path):
print "Checking checksums of files in .treeinfo"
tr_val = treeinfo_checksum(tr_path)
retval = tr_val | retval
sack = []
packages_ok = True
if opts.checkall:
print "Checking all packages"
sack = my.pkgSack
elif not (retval & BAD_COMPS or opts.nocomps):
print "Checking mandatory @core packages"
group = my.comps.return_group('core')
if group is not None:
pkgs = group.mandatory_packages
else:
print " @core group not found"
retval = retval | BAD_COMPS
report('COMPS','FAILED')
pkgs = []
for pname in pkgs:
# FIXME: this pulls from pkgSack, which (I guess) is populated
# based on the arch etc. of the current host.. so you can't check
# the x86_64 repo from an i386 machine, f'rinstance.
try:
sack.extend(my.pkgSack.searchNevra(name=pname))
except yum.Errors.RepoError:
print " something went wrong with the repodata."
sack = []
break
for pkg in sack:
if checkfileurl(pkg):
print " verifying %s checksum" % pkg
else:
print " verifying %s checksum FAILED" % pkg
packages_ok = False
if sack:
if packages_ok is True:
report('CORE_PACKAGES','PASSED')
else:
report('CORE_PACKAGES','FAILED')
retval = retval | BAD_PACKAGES
else:
# we couldn't test anything
report('CORE_PACKAGES','BLOCKED')
# All done!
if retval == 0:
print "Tree verified."
return retval
if __name__ == "__main__":
rc = main()
sys.exit(rc)