# -*- coding: utf-8 -*-

# 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/>.

"""

kallithea.controllers.admin.notifications

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

notifications controller for Kallithea

This file was forked by the Kallithea project in July 2014.

Original author and date, and relevant copyright and licensing information is below:

:created_on: Nov 23, 2010

:author: marcink

:copyright: (c) 2013 RhodeCode GmbH, and others.

:license: GPLv3, see LICENSE.md for more details.

"""

import logging

import traceback

from pylons import request

from pylons import tmpl_context as c

from kallithea.model.db import Notification

from kallithea.model.notification import NotificationModel

from kallithea.model.meta import Session

from kallithea.lib.auth import LoginRequired, NotAnonymous

from kallithea.lib.base import BaseController, render

from kallithea.lib import helpers as h

from kallithea.lib.helpers import Page

from kallithea.lib.utils2 import safe_int

log = logging.getLogger(__name__)

class NotificationsController(BaseController):

    """REST Controller styled on the Atom Publishing Protocol"""

    # To properly map this controller, ensure your config/routing.py

    # file has a resource setup:

    #     map.resource('notification', 'notifications', controller='_admin/notifications',

    #         path_prefix='/_admin', name_prefix='_admin_')

    @LoginRequired()

    @NotAnonymous()

    def __before__(self):

        super(NotificationsController, self).__before__()

    def index(self, format='html'):

        """GET /_admin/notifications: All items in the collection"""

        # url('notifications')

        c.user = self.authuser

        notif = NotificationModel().get_for_user(self.authuser.user_id,

                                            filter_=request.GET.getall('type'))

        p = safe_int(request.GET.get('page', 1), 1)

        c.notifications = Page(notif, page=p, items_per_page=10)

        c.pull_request_type = Notification.TYPE_PULL_REQUEST

        c.comment_type = [Notification.TYPE_CHANGESET_COMMENT,

                          Notification.TYPE_PULL_REQUEST_COMMENT]

        _current_filter = request.GET.getall('type')

        c.current_filter = 'all'

        if _current_filter == [c.pull_request_type]:

            c.current_filter = 'pull_request'

        elif _current_filter == c.comment_type:

            c.current_filter = 'comment'

        return render('admin/notifications/notifications.html')

            log.error(traceback.format_exc())

        raise HTTPBadRequest()

    def delete(self, notification_id):

        """DELETE /_admin/notifications/id: Delete an existing item"""

        # Forms posted to this method should contain a hidden field:

        #    <input type="hidden" name="_method" value="DELETE" />

        # Or using helpers:

        #    h.form(url('notification', notification_id=ID),

        #           method='delete')

        # url('notification', notification_id=ID)

        try:

            no = Notification.get(notification_id)

            owner = any(un.user.user_id == c.authuser.user_id

                        for un in no.notifications_to_users)

            if h.HasPermissionAny('hg.admin')() or owner:

                # deletes only notification2user

                NotificationModel().delete(c.authuser.user_id, no)

                Session().commit()

                return 'ok'

        except Exception:

            Session().rollback()

            log.error(traceback.format_exc())

        raise HTTPBadRequest()

    def show(self, notification_id, format='html'):

        """GET /_admin/notifications/id: Show a specific item"""

        # url('notification', notification_id=ID)

        c.user = self.authuser

        no = Notification.get(notification_id)

        owner = any(un.user.user_id == c.authuser.user_id

                    for un in no.notifications_to_users)

        repo_admin = h.HasRepoPermissionAny('repository.admin')

        if no and (h.HasPermissionAny('hg.admin')() or repo_admin or owner):

            unotification = NotificationModel()\

                            .get_user_notification(c.user.user_id, no)

            # if this association to user is not valid, we don't want to show

            # this message

            if unotification is not None:

                if not unotification.read:

                    unotification.mark_as_read()

                    Session().commit()

                c.notification = no

                return render('admin/notifications/show_notification.html')

    def edit(self, notification_id, format='html'):

        """GET /_admin/notifications/id/edit: Form to edit an existing item"""

        # url('edit_notification', notification_id=ID)

# -*- coding: utf-8 -*-

# 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/>.

"""

kallithea.controllers.admin.repo_groups

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Repository groups controller for Kallithea

This file was forked by the Kallithea project in July 2014.

Original author and date, and relevant copyright and licensing information is below:

:created_on: Mar 23, 2010

:author: marcink

:copyright: (c) 2013 RhodeCode GmbH, and others.

:license: GPLv3, see LICENSE.md for more details.

"""

import logging

import traceback

import formencode

import itertools

from formencode import htmlfill

from pylons import request, tmpl_context as c, url

from pylons.i18n.translation import _, ungettext

import kallithea

from kallithea.lib import helpers as h

from kallithea.lib.compat import json

from kallithea.lib.auth import LoginRequired, \

    HasRepoGroupPermissionAnyDecorator, HasRepoGroupPermissionAll, \

    HasPermissionAll

from kallithea.lib.base import BaseController, render

from kallithea.model.db import RepoGroup, Repository

from kallithea.model.scm import RepoGroupList, AvailableRepoGroupChoices

from kallithea.model.repo_group import RepoGroupModel

from kallithea.model.forms import RepoGroupForm, RepoGroupPermsForm

from kallithea.model.meta import Session

from kallithea.model.repo import RepoModel

from kallithea.lib.utils2 import safe_int

from sqlalchemy.sql.expression import func

log = logging.getLogger(__name__)

class RepoGroupsController(BaseController):

    @LoginRequired()

    def __before__(self):

        super(RepoGroupsController, self).__before__()

    def __load_defaults(self, extras=(), exclude=()):

        """extras is used for keeping current parent ignoring permissions

        exclude is used for not moving group to itself TODO: also exclude descendants

        Note: only admin can create top level groups

        """

        repo_groups = AvailableRepoGroupChoices([], ['group.admin'], extras)

        exclude_group_ids = set(rg.group_id for rg in exclude)

        c.repo_groups = [rg for rg in repo_groups

                         if rg[0] not in exclude_group_ids]

        repo_model = RepoModel()

        c.users_array = repo_model.get_users_js()

        c.user_groups_array = repo_model.get_user_groups_js()

    def __load_data(self, group_id):

        """

        Load defaults settings for edit, and update

        :param group_id:

        """

        repo_group = RepoGroup.get_or_404(group_id)

        data = repo_group.get_dict()

        data['group_name'] = repo_group.name

        # fill repository group users

        for p in repo_group.repo_group_to_perm:

            data.update({'u_perm_%s' % p.user.username:

                             p.permission.permission_name})

        # fill repository group groups

        for p in repo_group.users_group_to_perm:

            data.update({'g_perm_%s' % p.users_group.users_group_name:

                             p.permission.permission_name})

        return data

        # permissions for can create group based on parent_id are checked

        # here in the Form

        repo_group_form = RepoGroupForm(repo_groups=c.repo_groups)

        try:

            form_result = repo_group_form.to_python(dict(request.POST))

            gr = RepoGroupModel().create(

                group_name=form_result['group_name'],

                group_description=form_result['group_description'],

                parent=form_result['group_parent_id'],

                owner=self.authuser.user_id, # TODO: make editable

                copy_permissions=form_result['group_copy_permissions']

            )

            Session().commit()

            #TODO: in futureaction_logger(, '', '', '', self.sa)

        except formencode.Invalid as errors:

            return htmlfill.render(

                render('admin/repo_groups/repo_group_add.html'),

                defaults=errors.value,

                errors=errors.error_dict or {},

                prefix_error=False,

                encoding="UTF-8",

                force_defaults=False)

        except Exception:

            log.error(traceback.format_exc())

            h.flash(_('Error occurred during creation of repository group %s') \

                    % request.POST.get('group_name'), category='error')

            parent_group_id = form_result['group_parent_id']

            #TODO: maybe we should get back to the main view, not the admin one

            return redirect(url('repos_groups', parent_group=parent_group_id))

        h.flash(_('Created repository group %s') % gr.group_name,

                category='success')

        return redirect(url('repos_group_home', group_name=gr.group_name))

    def new(self):

        """GET /repo_groups/new: Form to create a new item"""

        # url('new_repos_group')

        if HasPermissionAll('hg.admin')('group create'):

            #we're global admin, we're ok and we can create TOP level groups

            pass

        else:

            # we pass in parent group into creation form, thus we know

            # what would be the group, we can check perms here !

            group_id = safe_int(request.GET.get('parent_group'))

            group = RepoGroup.get(group_id) if group_id else None

            group_name = group.group_name if group else None

            if HasRepoGroupPermissionAll('group.admin')(group_name, 'group create'):

                pass

            else:

        self.__load_defaults()

        return render('admin/repo_groups/repo_group_add.html')

    @HasRepoGroupPermissionAnyDecorator('group.admin')

    def update(self, group_name):

        """PUT /repo_groups/group_name: Update an existing item"""

        # Forms posted to this method should contain a hidden field:

        #    <input type="hidden" name="_method" value="PUT" />

        # Or using helpers:

        #    h.form(url('repos_group', group_name=GROUP_NAME),

        #           method='put')

        # url('repos_group', group_name=GROUP_NAME)

        c.repo_group = RepoGroupModel()._get_repo_group(group_name)

        self.__load_defaults(extras=[c.repo_group.parent_group],

                             exclude=[c.repo_group])

        # TODO: kill allow_empty_group - it is only used for redundant form validation!

        if HasPermissionAll('hg.admin')('group edit'):

            #we're global admin, we're ok and we can create TOP level groups

            allow_empty_group = True

        elif not c.repo_group.parent_group:

            allow_empty_group = True

        else:

            allow_empty_group = False

        repo_group_form = RepoGroupForm(

            edit=True,

            old_data=c.repo_group.get_dict(),

            repo_groups=c.repo_groups,

            can_create_in_root=allow_empty_group,

        )()

        try:

            form_result = repo_group_form.to_python(dict(request.POST))

            new_gr = RepoGroupModel().update(group_name, form_result)

            Session().commit()

            h.flash(_('Updated repository group %s') \

                    % form_result['group_name'], category='success')

            # we now have new name !

            group_name = new_gr.group_name

            #TODO: in future action_logger(, '', '', '', self.sa)

        except formencode.Invalid as errors:

            return htmlfill.render(

                render('admin/repo_groups/repo_group_edit.html'),

                defaults=errors.value,

                errors=errors.error_dict or {},

# -*- coding: utf-8 -*-

# 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/>.

"""

kallithea.lib.auth

~~~~~~~~~~~~~~~~~~

authentication and permission libraries

This file was forked by the Kallithea project in July 2014.

Original author and date, and relevant copyright and licensing information is below:

:created_on: Apr 4, 2010

:author: marcink

:copyright: (c) 2013 RhodeCode GmbH, and others.

:license: GPLv3, see LICENSE.md for more details.

"""

import time

import os

import logging

import traceback

import hashlib

import itertools

import collections

from decorator import decorator

from pylons import url, request, session

from pylons.i18n.translation import _

from webhelpers.pylonslib import secure_form

from sqlalchemy import or_

from sqlalchemy.orm.exc import ObjectDeletedError

from sqlalchemy.orm import joinedload

from kallithea import __platform__, is_windows, is_unix

from kallithea.lib.vcs.utils.lazy import LazyProperty

from kallithea.model import meta

from kallithea.model.meta import Session

from kallithea.model.user import UserModel

from kallithea.model.db import User, Repository, Permission, \

    UserToPerm, UserGroupRepoToPerm, UserGroupToPerm, UserGroupMember, \

    RepoGroup, UserGroupRepoGroupToPerm, UserIpMap, UserGroupUserGroupToPerm, \

    UserGroup, UserApiKeys

from kallithea.lib.utils2 import safe_unicode, aslist

from kallithea.lib.utils import get_repo_slug, get_repo_group_slug, \

    get_user_group_slug, conditional_cache

from kallithea.lib.caching_query import FromCache

log = logging.getLogger(__name__)

class PasswordGenerator(object):

    """

    This is a simple class for generating password from different sets of

    characters

    usage::

        passwd_gen = PasswordGenerator()

        #print 8-letter password containing only big and small letters

            of alphabet

        passwd_gen.gen_password(8, passwd_gen.ALPHABETS_BIG_SMALL)

    """

    ALPHABETS_NUM = r'''1234567890'''

    ALPHABETS_SMALL = r'''qwertyuiopasdfghjklzxcvbnm'''

    ALPHABETS_BIG = r'''QWERTYUIOPASDFGHJKLZXCVBNM'''

    ALPHABETS_SPECIAL = r'''`-=[]\;',./~!@#$%^&*()_+{}|:"<>?'''

    ALPHABETS_FULL = ALPHABETS_BIG + ALPHABETS_SMALL \

        + ALPHABETS_NUM + ALPHABETS_SPECIAL

    ALPHABETS_ALPHANUM = ALPHABETS_BIG + ALPHABETS_SMALL + ALPHABETS_NUM

    ALPHABETS_BIG_SMALL = ALPHABETS_BIG + ALPHABETS_SMALL

    ALPHABETS_ALPHANUM_BIG = ALPHABETS_BIG + ALPHABETS_NUM

    ALPHABETS_ALPHANUM_SMALL = ALPHABETS_SMALL + ALPHABETS_NUM

    def gen_password(self, length, alphabet=ALPHABETS_FULL):

        assert len(alphabet) <= 256, alphabet

        l = []

        while len(l) < length:

            i = ord(os.urandom(1))

            if i < len(alphabet):

def redirect_to_login(message=None):

    from kallithea.lib import helpers as h

    p = request.path_qs

    if message:

        h.flash(h.literal(message), category='warning')

    log.debug('Redirecting to login page, origin: %s', p)

    return redirect(url('login_home', came_from=p))

class LoginRequired(object):

    """

    Must be logged in to execute this function else

    redirect to login page

    :param api_access: if enabled this checks only for valid auth token

        and grants access based on valid token

    """

    def __init__(self, api_access=False):

        self.api_access = api_access

    def __call__(self, func):

        return decorator(self.__wrapper, func)

    def __wrapper(self, func, *fargs, **fkwargs):

        controller = fargs[0]

        user = controller.authuser

        loc = "%s:%s" % (controller.__class__.__name__, func.__name__)

        log.debug('Checking access for user %s @ %s', user, loc)

        if not AuthUser.check_ip_allowed(user, controller.ip_addr):

            return redirect_to_login(_('IP %s not allowed') % controller.ip_addr)

        # check if we used an API key and it's a valid one

        api_key = request.GET.get('api_key')

        if api_key is not None:

            # explicit controller is enabled or API is in our whitelist

            if self.api_access or allowed_api_access(loc, api_key=api_key):

                if api_key in user.api_keys:

                    log.info('user %s authenticated with API key ****%s @ %s',

                             user, api_key[-4:], loc)

                    return func(*fargs, **fkwargs)

                else:

                    log.warning('API key ****%s is NOT valid', api_key[-4:])

                    return redirect_to_login(_('Invalid API key'))

            else:

                # controller does not allow API access

                log.warning('API access to %s is not allowed', loc)

        # Only allow the following HTTP request methods. (We sometimes use POST

        # requests with a '_method' set to 'PUT' or 'DELETE'; but that is only

        # used for the route lookup, and does not affect request.method.)

        if request.method not in ['GET', 'HEAD', 'POST', 'PUT']:

        # Make sure CSRF token never appears in the URL. If so, invalidate it.

        if secure_form.token_key in request.GET:

            log.error('CSRF key leak detected')

            session.pop(secure_form.token_key, None)

            session.save()

            from kallithea.lib import helpers as h

            h.flash(_("CSRF token leak has been detected - all form tokens have been expired"),

                    category='error')

        # CSRF protection: Whenever a request has ambient authority (whether

        # through a session cookie or its origin IP address), it must include

        # the correct token, unless the HTTP method is GET or HEAD (and thus

        # guaranteed to be side effect free. In practice, the only situation

        # where we allow side effects without ambient authority is when the

        # authority comes from an API key; and that is handled above.

        if request.method not in ['GET', 'HEAD']:

            token = request.POST.get(secure_form.token_key)

            if not token or token != secure_form.authentication_token():

                log.error('CSRF check failed')

        # WebOb already ignores request payload parameters for anything other

        # than POST/PUT, but double-check since other Kallithea code relies on

        # this assumption.

        if request.method not in ['POST', 'PUT'] and request.POST:

            log.error('%r request with payload parameters; WebOb should have stopped this', request.method)

        # regular user authentication

        if user.is_authenticated:

            log.info('user %s authenticated with regular auth @ %s', user, loc)

            return func(*fargs, **fkwargs)

        else:

            log.warning('user %s NOT authenticated with regular auth @ %s', user, loc)

            return redirect_to_login()

class NotAnonymous(object):

    """

    Must be logged in to execute this function else

    redirect to login page"""

    def __call__(self, func):

        return decorator(self.__wrapper, func)

    def __wrapper(self, func, *fargs, **fkwargs):

        cls = fargs[0]

        self.user = cls.authuser

        log.debug('Checking if user is not anonymous @%s', cls)

        anonymous = self.user.username == User.DEFAULT_USER

        if anonymous:

            return redirect_to_login(_('You need to be a registered user to '

                    'perform this action'))

        else:

            return func(*fargs, **fkwargs)

class PermsDecorator(object):

    """Base class for controller decorators"""

    def __init__(self, *required_perms):

        self.required_perms = set(required_perms)

        self.user_perms = None

    def __call__(self, func):

        return decorator(self.__wrapper, func)

    def __wrapper(self, func, *fargs, **fkwargs):

        cls = fargs[0]

        self.user = cls.authuser

        self.user_perms = self.user.permissions

        log.debug('checking %s permissions %s for %s %s',

          self.__class__.__name__, self.required_perms, cls, self.user)

        if self.check_permissions():

            log.debug('Permission granted for %s %s', cls, self.user)

            return func(*fargs, **fkwargs)

        else:

            log.debug('Permission denied for %s %s', cls, self.user)

            anonymous = self.user.username == User.DEFAULT_USER

            if anonymous:

                return redirect_to_login(_('You need to be signed in to view this page'))

            else:

    def check_permissions(self):

        """Dummy function for overriding"""

        raise Exception('You have to write this function in child class')

class HasPermissionAllDecorator(PermsDecorator):

    """

    Checks for access permission for all given predicates. All of them

    have to be meet in order to fulfill the request

    """

    def check_permissions(self):

        if self.required_perms.issubset(self.user_perms.get('global')):

            return True

        return False

class HasPermissionAnyDecorator(PermsDecorator):

    """

    Checks for access permission for any of given predicates. In order to

    fulfill the request any of predicates must be meet

    """

    def check_permissions(self):

        if self.required_perms.intersection(self.user_perms.get('global')):

            return True

        return False

class HasRepoPermissionAllDecorator(PermsDecorator):

    """

    Checks for access permission for all given predicates for specific

    repository. All of them have to be meet in order to fulfill the request

    """

    def check_permissions(self):

        repo_name = get_repo_slug(request)

        try:

            user_perms = set([self.user_perms['repositories'][repo_name]])

        except KeyError:

            return False

        if self.required_perms.issubset(user_perms):

            return True

        return False

class HasRepoPermissionAnyDecorator(PermsDecorator):