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Location: kallithea/rhodecode/model/permission.py

Marcin Kuzminski
fix for issue #578 git hooks sometimes cannot be executed due to different python they runned under, this commit tries to fix that by altering the PATH env variable using current python that rhodecode is running
# -*- coding: utf-8 -*-
"""
    rhodecode.model.permission
    ~~~~~~~~~~~~~~~~~~~~~~~~~~

    permissions model for RhodeCode

    :created_on: Aug 20, 2010
    :author: marcink
    :copyright: (C) 2010-2012 Marcin Kuzminski <marcin@python-works.com>
    :license: GPLv3, see COPYING for more details.
"""
# 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 3 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, see <http://www.gnu.org/licenses/>.

import logging
import traceback

from sqlalchemy.exc import DatabaseError

from rhodecode.lib.caching_query import FromCache

from rhodecode.model import BaseModel
from rhodecode.model.db import User, Permission, UserToPerm, UserRepoToPerm,\
    UserRepoGroupToPerm

log = logging.getLogger(__name__)


class PermissionModel(BaseModel):
    """
    Permissions model for RhodeCode
    """

    cls = Permission

    def get_permission(self, permission_id, cache=False):
        """
        Get's permissions by id

        :param permission_id: id of permission to get from database
        :param cache: use Cache for this query
        """
        perm = self.sa.query(Permission)
        if cache:
            perm = perm.options(FromCache("sql_cache_short",
                                          "get_permission_%s" % permission_id))
        return perm.get(permission_id)

    def get_permission_by_name(self, name, cache=False):
        """
        Get's permissions by given name

        :param name: name to fetch
        :param cache: Use cache for this query
        """
        perm = self.sa.query(Permission)\
            .filter(Permission.permission_name == name)
        if cache:
            perm = perm.options(FromCache("sql_cache_short",
                                          "get_permission_%s" % name))
        return perm.scalar()

    def update(self, form_result):
        perm_user = self.sa.query(User)\
                        .filter(User.username ==
                                form_result['perm_user_name']).scalar()
        u2p = self.sa.query(UserToPerm).filter(UserToPerm.user ==
                                               perm_user).all()
        if len(u2p) != len(User.DEFAULT_PERMISSIONS):
            raise Exception('Defined: %s should be 4  permissions for default'
                            ' user. This should not happen please verify'
                            ' your database' % len(u2p))

        try:
            # stage 1 change defaults
            for p in u2p:
                if p.permission.permission_name.startswith('repository.'):
                    p.permission = self.get_permission_by_name(
                                       form_result['default_perm'])
                    self.sa.add(p)

                elif p.permission.permission_name.startswith('hg.register.'):
                    p.permission = self.get_permission_by_name(
                                       form_result['default_register'])
                    self.sa.add(p)

                elif p.permission.permission_name.startswith('hg.create.'):
                    p.permission = self.get_permission_by_name(
                                        form_result['default_create'])
                    self.sa.add(p)

                elif p.permission.permission_name.startswith('hg.fork.'):
                    p.permission = self.get_permission_by_name(
                                        form_result['default_fork'])
                    self.sa.add(p)

            _def_name = form_result['default_perm'].split('repository.')[-1]
            #stage 2 update all default permissions for repos if checked
            if form_result['overwrite_default'] == True:
                _def = self.get_permission_by_name('repository.' + _def_name)
                # repos
                for r2p in self.sa.query(UserRepoToPerm)\
                               .filter(UserRepoToPerm.user == perm_user)\
                               .all():
                    r2p.permission = _def
                    self.sa.add(r2p)
                # groups
                _def = self.get_permission_by_name('group.' + _def_name)
                for g2p in self.sa.query(UserRepoGroupToPerm)\
                               .filter(UserRepoGroupToPerm.user == perm_user)\
                               .all():
                    g2p.permission = _def
                    self.sa.add(g2p)

            # stage 3 set anonymous access
            if perm_user.username == 'default':
                perm_user.active = bool(form_result['anonymous'])
                self.sa.add(perm_user)

        except (DatabaseError,):
            log.error(traceback.format_exc())
            raise