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Current File : /usr/lib/python3.6/site-packages/dnf/cli/commands/updateinfo.py
# updateinfo.py
# UpdateInfo CLI command.
#
# Copyright (C) 2014-2016 Red Hat, Inc.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions of
# the GNU General Public License v.2, or (at your option) any later version.
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY expressed or implied, including the implied warranties 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.  Any Red Hat trademarks that are incorporated in the
# source code or documentation are not subject to the GNU General Public
# License and may only be used or replicated with the express permission of
# Red Hat, Inc.
#

"""UpdateInfo CLI command."""
from __future__ import absolute_import
from __future__ import print_function
from __future__ import unicode_literals

import collections
import fnmatch

import hawkey
from dnf.cli import commands
from dnf.cli.option_parser import OptionParser
from dnf.i18n import _, exact_width
from dnf.pycomp import unicode


def _maxlen(iterable):
    """Return maximum length of items in a non-empty iterable."""
    return max(exact_width(item) for item in iterable)


class UpdateInfoCommand(commands.Command):
    """Implementation of the UpdateInfo command."""

    TYPE2LABEL = {hawkey.ADVISORY_BUGFIX: _('bugfix'),
                  hawkey.ADVISORY_ENHANCEMENT: _('enhancement'),
                  hawkey.ADVISORY_SECURITY: _('security'),
                  hawkey.ADVISORY_UNKNOWN: _('unknown'),
                  hawkey.ADVISORY_NEWPACKAGE: _('newpackage')}

    SECURITY2LABEL = {'Critical': _('Critical/Sec.'),
                      'Important': _('Important/Sec.'),
                      'Moderate': _('Moderate/Sec.'),
                      'Low': _('Low/Sec.')}

    direct_commands = {'list-updateinfo'    : 'list',
                       'list-security'      : 'list',
                       'list-sec'           : 'list',
                       'info-updateinfo'    : 'info',
                       'info-security'      : 'info',
                       'info-sec'           : 'info',
                       'summary-updateinfo' : 'summary'}
    aliases = ['updateinfo'] + list(direct_commands.keys())
    summary = _('display advisories about packages')
    availability_default = 'available'
    availabilities = ['installed', 'updates', 'all', availability_default]

    def __init__(self, cli):
        """Initialize the command."""
        super(UpdateInfoCommand, self).__init__(cli)
        self._installed_query = None

    @staticmethod
    def set_argparser(parser):
        availability = parser.add_mutually_exclusive_group()
        availability.add_argument(
            "--available", dest='_availability', const='available', action='store_const',
            help=_("advisories about newer versions of installed packages (default)"))
        availability.add_argument(
            "--installed", dest='_availability', const='installed', action='store_const',
            help=_("advisories about equal and older versions of installed packages"))
        availability.add_argument(
            "--updates", dest='_availability', const='updates', action='store_const',
            help=_("advisories about newer versions of those installed packages "
                   "for which a newer version is available"))
        availability.add_argument(
            "--all", dest='_availability', const='all', action='store_const',
            help=_("advisories about any versions of installed packages"))
        cmds = ['summary', 'list', 'info']
        output_format = parser.add_mutually_exclusive_group()
        output_format.add_argument("--summary", dest='_spec_action', const='summary',
                                   action='store_const',
                                   help=_('show summary of advisories (default)'))
        output_format.add_argument("--list", dest='_spec_action', const='list',
                                   action='store_const',
                                   help=_('show list of advisories'))
        output_format.add_argument("--info", dest='_spec_action', const='info',
                                   action='store_const',
                                   help=_('show info of advisories'))
        parser.add_argument("--with-cve", dest='with_cve', default=False,
                            action='store_true',
                            help=_('show only advisories with CVE reference'))
        parser.add_argument("--with-bz", dest='with_bz', default=False,
                            action='store_true',
                            help=_('show only advisories with bugzilla reference'))
        parser.add_argument('spec', nargs='*', metavar='SPEC',
                            choices=cmds, default=cmds[0],
                            action=OptionParser.PkgNarrowCallback,
                            help=_("Package specification"))

    def configure(self):
        """Do any command-specific configuration based on command arguments."""
        self.cli.demands.available_repos = True
        self.cli.demands.sack_activation = True

        if self.opts.command in self.direct_commands:
            # we were called with direct command
            self.opts.spec_action = self.direct_commands[self.opts.command]
        else:
            if self.opts._spec_action:
                self.opts.spec_action = self.opts._spec_action

        if self.opts._availability:
            self.opts.availability = self.opts._availability
        else:
            # yum compatibility - search for all|available|installed|updates in spec[0]
            if not self.opts.spec or self.opts.spec[0] not in self.availabilities:
                self.opts.availability = self.availability_default
            else:
                self.opts.availability = self.opts.spec.pop(0)

        # filtering by advisory types (security/bugfix/enhancement/newpackage)
        self.opts._advisory_types = set()
        if self.opts.bugfix:
            self.opts._advisory_types.add(hawkey.ADVISORY_BUGFIX)
        if self.opts.enhancement:
            self.opts._advisory_types.add(hawkey.ADVISORY_ENHANCEMENT)
        if self.opts.newpackage:
            self.opts._advisory_types.add(hawkey.ADVISORY_NEWPACKAGE)
        if self.opts.security:
            self.opts._advisory_types.add(hawkey.ADVISORY_SECURITY)

        # yum compatibility - yum accepts types also as positional arguments
        if self.opts.spec:
            spec = self.opts.spec.pop(0)
            if spec == 'bugfix':
                self.opts._advisory_types.add(hawkey.ADVISORY_BUGFIX)
            elif spec == 'enhancement':
                self.opts._advisory_types.add(hawkey.ADVISORY_ENHANCEMENT)
            elif spec in ('security', 'sec'):
                self.opts._advisory_types.add(hawkey.ADVISORY_SECURITY)
            elif spec == 'newpackage':
                self.opts._advisory_types.add(hawkey.ADVISORY_NEWPACKAGE)
            elif spec in ('bugzillas', 'bzs'):
                self.opts.with_bz = True
            elif spec == 'cves':
                self.opts.with_cve = True
            else:
                self.opts.spec.insert(0, spec)

        if self.opts.advisory:
            self.opts.spec.extend(self.opts.advisory)


    def run(self):
        """Execute the command with arguments."""
        if self.opts.availability == 'installed':
            apkg_adv_insts = self.installed_apkg_adv_insts(self.opts.spec)
            description = _('installed')
        elif self.opts.availability == 'updates':
            apkg_adv_insts = self.updating_apkg_adv_insts(self.opts.spec)
            description = _('updates')
        elif self.opts.availability == 'all':
            apkg_adv_insts = self.all_apkg_adv_insts(self.opts.spec)
            description = _('all')
        else:
            apkg_adv_insts = self.available_apkg_adv_insts(self.opts.spec)
            description = _('available')

        if self.opts.spec_action == 'list':
            self.display_list(apkg_adv_insts)
        elif self.opts.spec_action == 'info':
            self.display_info(apkg_adv_insts)
        else:
            self.display_summary(apkg_adv_insts, description)

    def _newer_equal_installed(self, apackage):
        if self._installed_query is None:
            self._installed_query = self.base.sack.query().installed().apply()
        q = self._installed_query.filter(name=apackage.name, evr__gte=apackage.evr)
        return len(q) > 0

    def _advisory_matcher(self, advisory):
        if not self.opts._advisory_types \
                and not self.opts.spec \
                and not self.opts.severity \
                and not self.opts.bugzilla \
                and not self.opts.cves \
                and not self.opts.with_cve \
                and not self.opts.with_bz:
            return True
        if advisory.type in self.opts._advisory_types:
            return True
        if any(fnmatch.fnmatchcase(advisory.id, pat) for pat in self.opts.spec):
            return True
        if self.opts.severity and advisory.severity in self.opts.severity:
            return True
        if self.opts.bugzilla and any([advisory.match_bug(bug) for bug in self.opts.bugzilla]):
            return True
        if self.opts.cves and any([advisory.match_cve(cve) for cve in self.opts.cves]):
            return True
        if self.opts.with_cve:
            if any([ref.type == hawkey.REFERENCE_CVE for ref in advisory.references]):
                return True
        if self.opts.with_bz:
            if any([ref.type == hawkey.REFERENCE_BUGZILLA for ref in advisory.references]):
                return True
        return False

    def _apackage_advisory_installed(self, pkgs_query, cmptype, specs):
        """Return (adv. package, advisory, installed) triplets."""
        for apackage in pkgs_query.get_advisory_pkgs(cmptype):
            advisory = apackage.get_advisory(self.base.sack)
            advisory_match = self._advisory_matcher(advisory)
            apackage_match = any(fnmatch.fnmatchcase(apackage.name, pat)
                                 for pat in self.opts.spec)
            if advisory_match or apackage_match:
                installed = self._newer_equal_installed(apackage)
                yield apackage, advisory, installed

    def running_kernel_pkgs(self):
        """Return query containing packages of currently running kernel"""
        sack = self.base.sack
        q = sack.query().filterm(empty=True)
        kernel = sack.get_running_kernel()
        if kernel:
            q = q.union(sack.query().filterm(sourcerpm=kernel.sourcerpm))
        return q

    def available_apkg_adv_insts(self, specs):
        """Return available (adv. package, adv., inst.) triplets"""
        # check advisories for the latest installed packages
        q = self.base.sack.query().installed().latest(1)
        # plus packages of the running kernel
        q = q.union(self.running_kernel_pkgs().installed())
        return self._apackage_advisory_installed(q, hawkey.GT, specs)

    def installed_apkg_adv_insts(self, specs):
        """Return installed (adv. package, adv., inst.) triplets"""
        return self._apackage_advisory_installed(
            self.base.sack.query().installed(), hawkey.LT | hawkey.EQ, specs)

    def updating_apkg_adv_insts(self, specs):
        """Return updating (adv. package, adv., inst.) triplets"""
        return self._apackage_advisory_installed(
            self.base.sack.query().filterm(upgradable=True), hawkey.GT, specs)

    def all_apkg_adv_insts(self, specs):
        """Return installed (adv. package, adv., inst.) triplets"""
        return self._apackage_advisory_installed(
            self.base.sack.query().installed(), hawkey.LT | hawkey.EQ | hawkey.GT, specs)

    def _summary(self, apkg_adv_insts):
        """Make the summary of advisories."""
        # Remove duplicate advisory IDs. We assume that the ID is unique within
        # a repository and two advisories with the same IDs in different
        # repositories must have the same type.
        id2type = {}
        for (apkg, advisory, installed) in apkg_adv_insts:
            id2type[advisory.id] = advisory.type
            if advisory.type == hawkey.ADVISORY_SECURITY:
                id2type[(advisory.id, advisory.severity)] = (advisory.type, advisory.severity)
        return collections.Counter(id2type.values())

    def display_summary(self, apkg_adv_insts, description):
        """Display the summary of advisories."""
        typ2cnt = self._summary(apkg_adv_insts)
        if typ2cnt:
            print(_('Updates Information Summary: ') + description)
            # Convert types to strings and order the entries.
            label_counts = [
                (0, _('New Package notice(s)'), typ2cnt[hawkey.ADVISORY_NEWPACKAGE]),
                (0, _('Security notice(s)'), typ2cnt[hawkey.ADVISORY_SECURITY]),
                (1, _('Critical Security notice(s)'),
                 typ2cnt[(hawkey.ADVISORY_SECURITY, 'Critical')]),
                (1, _('Important Security notice(s)'),
                 typ2cnt[(hawkey.ADVISORY_SECURITY, 'Important')]),
                (1, _('Moderate Security notice(s)'),
                 typ2cnt[(hawkey.ADVISORY_SECURITY, 'Moderate')]),
                (1, _('Low Security notice(s)'),
                 typ2cnt[(hawkey.ADVISORY_SECURITY, 'Low')]),
                (1, _('Unknown Security notice(s)'),
                 typ2cnt[(hawkey.ADVISORY_SECURITY, None)]),
                (0, _('Bugfix notice(s)'), typ2cnt[hawkey.ADVISORY_BUGFIX]),
                (0, _('Enhancement notice(s)'), typ2cnt[hawkey.ADVISORY_ENHANCEMENT]),
                (0, _('other notice(s)'), typ2cnt[hawkey.ADVISORY_UNKNOWN])]
            width = _maxlen(unicode(v[2]) for v in label_counts if v[2])
            for indent, label, count in label_counts:
                if not count:
                    continue
                print('    %*s %s' % (width + 4 * indent, unicode(count), label))
        if self.base.conf.autocheck_running_kernel:
            self.cli._check_running_kernel()

    def display_list(self, apkg_adv_insts):
        """Display the list of advisories."""
        def inst2mark(inst):
            if not self.opts.availability == 'all':
                return ''
            elif inst:
                return 'i '
            else:
                return '  '

        def type2label(typ, sev):
            if typ == hawkey.ADVISORY_SECURITY:
                return self.SECURITY2LABEL.get(sev, _('Unknown/Sec.'))
            else:
                return self.TYPE2LABEL.get(typ, _('unknown'))

        nevra_inst_dict = dict()
        for apkg, advisory, installed in apkg_adv_insts:
            nevra = '%s-%s.%s' % (apkg.name, apkg.evr, apkg.arch)
            if self.opts.with_cve or self.opts.with_bz:
                for ref in advisory.references:
                    if ref.type == hawkey.REFERENCE_BUGZILLA and not self.opts.with_bz:
                        continue
                    elif ref.type == hawkey.REFERENCE_CVE and not self.opts.with_cve:
                        continue
                    nevra_inst_dict.setdefault((nevra, installed, advisory.updated), dict())[ref.id] = (
                            advisory.type, advisory.severity)
            else:
                nevra_inst_dict.setdefault((nevra, installed, advisory.updated), dict())[advisory.id] = (
                        advisory.type, advisory.severity)

        advlist = []
        # convert types to labels, find max len of advisory IDs and types
        idw = tlw = nw = 0
        for (nevra, inst, aupdated), id2type in sorted(nevra_inst_dict.items(), key=lambda x: x[0]):
            nw = max(nw, len(nevra))
            for aid, atypesev in id2type.items():
                idw = max(idw, len(aid))
                label = type2label(*atypesev)
                tlw = max(tlw, len(label))
                advlist.append((inst2mark(inst), aid, label, nevra, aupdated))

        for (inst, aid, label, nevra, aupdated) in advlist:
            if self.base.conf.verbose:
                print('%s%-*s %-*s %-*s %s' % (inst, idw, aid, tlw, label, nw, nevra, aupdated))
            else:
                print('%s%-*s %-*s %s' % (inst, idw, aid, tlw, label, nevra))


    def display_info(self, apkg_adv_insts):
        """Display the details about available advisories."""
        arches = self.base.sack.list_arches()
        verbose = self.base.conf.verbose
        labels = (_('Update ID'), _('Type'), _('Updated'), _('Bugs'),
                  _('CVEs'), _('Description'), _('Severity'), _('Rights'),
                  _('Files'), _('Installed'))

        def advisory2info(advisory, installed):
            attributes = [
                [advisory.id],
                [self.TYPE2LABEL.get(advisory.type, _('unknown'))],
                [unicode(advisory.updated)],
                [],
                [],
                (advisory.description or '').splitlines(),
                [advisory.severity],
                (advisory.rights or '').splitlines(),
                sorted(set(pkg.filename for pkg in advisory.packages
                           if pkg.arch in arches)),
                None]
            for ref in advisory.references:
                if ref.type == hawkey.REFERENCE_BUGZILLA:
                    attributes[3].append('{} - {}'.format(ref.id, ref.title or ''))
                elif ref.type == hawkey.REFERENCE_CVE:
                    attributes[4].append(ref.id)
            attributes[3].sort()
            attributes[4].sort()
            if not verbose:
                attributes[7] = None
                attributes[8] = None
            if self.opts.availability == 'all':
                attributes[9] = [_('true') if installed else _('false')]

            width = _maxlen(labels)
            lines = []
            lines.append('=' * 79)
            lines.append('  ' + advisory.title)
            lines.append('=' * 79)
            for label, atr_lines in zip(labels, attributes):
                if atr_lines in (None, [None]):
                    continue
                for i, line in enumerate(atr_lines):
                    key = label if i == 0 else ''
                    key_padding = width - exact_width(key)
                    lines.append('%*s%s: %s' % (key_padding, "", key, line))
            return '\n'.join(lines)

        advisories = set()
        for apkg, advisory, installed in apkg_adv_insts:
            advisories.add(advisory2info(advisory, installed))

        print("\n\n".join(sorted(advisories, key=lambda x: x.lower())))

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