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Editing: config_manager.py
# # Copyright (C) 2015 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. # from __future__ import absolute_import from __future__ import unicode_literals from dnfpluginscore import _, logger, P_ import dnf import dnf.cli import dnf.pycomp import dnf.util import fnmatch import hashlib import os import re import shutil @dnf.plugin.register_command class ConfigManagerCommand(dnf.cli.Command): aliases = ['config-manager'] summary = _('manage {prog} configuration options and repositories').format( prog=dnf.util.MAIN_PROG) @staticmethod def set_argparser(parser): parser.add_argument( 'crepo', nargs='*', metavar='repo', help=_('repo to modify')) parser.add_argument( '--save', default=False, action='store_true', help=_('save the current options (useful with --setopt)')) parser.add_argument( '--add-repo', default=[], action='append', metavar='URL', help=_('add (and enable) the repo from the specified file or url')) parser.add_argument( '--dump', default=False, action='store_true', help=_('print current configuration values to stdout')) parser.add_argument( '--dump-variables', default=False, action='store_true', help=_('print variable values to stdout')) enable_group = parser.add_mutually_exclusive_group() enable_group.add_argument("--set-enabled", default=False, dest="set_enabled", action="store_true", help=_("enable repos (automatically saves)")) enable_group.add_argument("--set-disabled", default=False, dest="set_disabled", action="store_true", help=_("disable repos (automatically saves)")) def configure(self): # setup sack and populate it with enabled repos demands = self.cli.demands demands.available_repos = True # if no argument was passed then error if (not (self.opts.add_repo != [] or self.opts.save or self.opts.dump or self.opts.dump_variables or self.opts.set_disabled or self.opts.set_enabled) ): self.cli.optparser.error(_("one of the following arguments is required: {}") .format(' '.join([ "--save", "--add-repo", "--dump", "--dump-variables", "--set-enabled", "--enable", "--set-disabled", "--disable"]))) # warn with hint if --enablerepo or --disablerepo argument was passed if self.opts.repos_ed != []: logger.warning(_("Warning: --enablerepo/--disablerepo arguments have no meaning" "with config manager. Use --set-enabled/--set-disabled instead.")) if (self.opts.save or self.opts.set_enabled or self.opts.set_disabled or self.opts.add_repo): demands.root_user = True # sanitize commas https://bugzilla.redhat.com/show_bug.cgi?id=1830530 temp_list = [x.split(',') for x in self.opts.crepo if x != ','] # flatten sublists self.opts.crepo = [item for sublist in temp_list for item in sublist if item != ''] def run(self): """Execute the util action here.""" if self.opts.add_repo: self.add_repo() else: self.modify_repo() def modify_repo(self): """ process --set-enabled, --set-disabled and --setopt options """ matching_repos = [] # list of matched repositories not_matching_repos_id = set() # IDs of not matched repositories def match_repos(key, add_matching_repos): matching = self.base.repos.get_matching(key) if not matching: not_matching_repos_id.add(name) elif add_matching_repos: matching_repos.extend(matching) if self.opts.crepo: for name in self.opts.crepo: match_repos(name, True) if hasattr(self.opts, 'repo_setopts'): for name in self.opts.repo_setopts.keys(): match_repos(name, False) else: if hasattr(self.opts, 'repo_setopts'): for name in self.opts.repo_setopts.keys(): match_repos(name, True) if not_matching_repos_id: raise dnf.exceptions.Error(_("No matching repo to modify: %s.") % ', '.join(not_matching_repos_id)) sbc = self.base.conf modify = {} if hasattr(self.opts, 'main_setopts') and self.opts.main_setopts: modify = self.opts.main_setopts if self.opts.dump_variables: for name, val in self.base.conf.substitutions.items(): print("%s = %s" % (name, val)) if not self.opts.crepo or 'main' in self.opts.crepo: if self.opts.save and modify: # modify [main] in global configuration file self.base.conf.write_raw_configfile(self.base.conf.config_file_path, 'main', sbc.substitutions, modify) if self.opts.dump: print(self.base.output.fmtSection('main')) print(self.base.conf.dump()) if not matching_repos: return if self.opts.set_enabled or self.opts.set_disabled: self.opts.save = True for repo in sorted(matching_repos): repo_modify = {} if self.opts.set_enabled: repo_modify['enabled'] = "1" elif self.opts.set_disabled: repo_modify['enabled'] = "0" if hasattr(self.opts, 'repo_setopts'): for repoid, setopts in self.opts.repo_setopts.items(): if fnmatch.fnmatch(repo.id, repoid): repo_modify.update(setopts) if self.opts.save and repo_modify: self.base.conf.write_raw_configfile(repo.repofile, repo.id, sbc.substitutions, repo_modify) if self.opts.dump: print(self.base.output.fmtSection('repo: ' + repo.id)) print(repo.dump()) def add_repo(self): """ process --add-repo option """ # Get the reposdir location myrepodir = self.base.conf.get_reposdir errors_count = 0 for url in self.opts.add_repo: if dnf.pycomp.urlparse.urlparse(url).scheme == '': url = 'file://' + os.path.abspath(url) logger.info(_('Adding repo from: %s'), url) if url.endswith('.repo'): # .repo file - download, put into reposdir and enable it destname = os.path.basename(url) destname = os.path.join(myrepodir, destname) try: f = self.base.urlopen(url, mode='w+') shutil.copy2(f.name, destname) os.chmod(destname, 0o644) f.close() except IOError as e: errors_count += 1 logger.error(e) continue else: # just url to repo, create .repo file on our own repoid = sanitize_url_to_fs(url) reponame = 'created by {} config-manager from {}'.format(dnf.util.MAIN_PROG, url) destname = os.path.join(myrepodir, "%s.repo" % repoid) content = "[%s]\nname=%s\nbaseurl=%s\nenabled=1\n" % \ (repoid, reponame, url) if not save_to_file(destname, content): continue if errors_count: raise dnf.exceptions.Error(P_("Configuration of repo failed", "Configuration of repos failed", errors_count)) def save_to_file(filename, content): try: with open(filename, 'w+') as fd: dnf.pycomp.write_to_file(fd, content) os.chmod(filename, 0o644) except (IOError, OSError) as e: logger.error(_('Could not save repo to repofile %s: %s'), filename, e) return False return True # Regular expressions to sanitise cache filenames RE_SCHEME = re.compile(r'^\w+:/*(\w+:|www\.)?') RE_SLASH = re.compile(r'[?/:&#|~\*\[\]\(\)\'\\]+') RE_BEGIN = re.compile(r'^[,.]*') RE_FINAL = re.compile(r'[,.]*$') def sanitize_url_to_fs(url): """Return a filename suitable for the filesystem and for repo id Strips dangerous and common characters to create a filename we can use to store the cache in. """ try: if RE_SCHEME.match(url): if dnf.pycomp.PY3: url = url.encode('idna').decode('utf-8') else: if isinstance(url, str): url = url.decode('utf-8').encode('idna') else: url = url.encode('idna') if isinstance(url, unicode): url = url.encode('utf-8') except (UnicodeDecodeError, UnicodeEncodeError, UnicodeError, TypeError): pass url = RE_SCHEME.sub("", url) url = RE_SLASH.sub("_", url) url = RE_BEGIN.sub("", url) url = RE_FINAL.sub("", url) # limit length of url if len(url) > 250: parts = url[:185].split('_') lastindex = 185-len(parts[-1]) csum = hashlib.sha256() csum.update(url[lastindex:].encode('utf-8')) url = url[:lastindex] + '_' + csum.hexdigest() # remove all not allowed characters allowed_regex = "[^abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_.:-]" return re.sub(allowed_regex, '', url)
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