notifications: skip double rendering just to generate email title/desc

rhodecode/model/comment.py

@@ -1,848 +1,845 b''
 # -*- coding: utf-8 -*-
 
 # Copyright (C) 2011-2020 RhodeCode GmbH
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License, version 3
 # (only), as published by the Free Software Foundation.
 #
 # 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 Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 # This program is dual-licensed. If you wish to learn more about the
 # RhodeCode Enterprise Edition, including its added features, Support services,
 # and proprietary license terms, please see https://rhodecode.com/licenses/
 
 """
 comments model for RhodeCode
 """
 import datetime
 
 import logging
 import traceback
 import collections
 
 from pyramid.threadlocal import get_current_registry, get_current_request
 from sqlalchemy.sql.expression import null
 from sqlalchemy.sql.functions import coalesce
 
 from rhodecode.lib import helpers as h, diffs, channelstream, hooks_utils
 from rhodecode.lib import audit_logger
 from rhodecode.lib.exceptions import CommentVersionMismatch
 from rhodecode.lib.utils2 import extract_mentioned_users, safe_str, safe_int
 from rhodecode.model import BaseModel
 from rhodecode.model.db import (
     false,
     ChangesetComment,
     User,
     Notification,
     PullRequest,
     AttributeDict,
     ChangesetCommentHistory,
 )
 from rhodecode.model.notification import NotificationModel
 from rhodecode.model.meta import Session
 from rhodecode.model.settings import VcsSettingsModel
 from rhodecode.model.notification import EmailNotificationModel
 from rhodecode.model.validation_schema.schemas import comment_schema
 
 
 log = logging.getLogger(__name__)
 
 
 class CommentsModel(BaseModel):
 
     cls = ChangesetComment
 
     DIFF_CONTEXT_BEFORE = 3
     DIFF_CONTEXT_AFTER = 3
 
     def __get_commit_comment(self, changeset_comment):
         return self._get_instance(ChangesetComment, changeset_comment)
 
     def __get_pull_request(self, pull_request):
         return self._get_instance(PullRequest, pull_request)
 
     def _extract_mentions(self, s):
         user_objects = []
         for username in extract_mentioned_users(s):
             user_obj = User.get_by_username(username, case_insensitive=True)
             if user_obj:
                 user_objects.append(user_obj)
         return user_objects
 
     def _get_renderer(self, global_renderer='rst', request=None):
         request = request or get_current_request()
 
         try:
             global_renderer = request.call_context.visual.default_renderer
         except AttributeError:
             log.debug("Renderer not set, falling back "
                       "to default renderer '%s'", global_renderer)
         except Exception:
             log.error(traceback.format_exc())
         return global_renderer
 
     def aggregate_comments(self, comments, versions, show_version, inline=False):
         # group by versions, and count until, and display objects
 
         comment_groups = collections.defaultdict(list)
         [comment_groups[_co.pull_request_version_id].append(_co) for _co in comments]
 
         def yield_comments(pos):
             for co in comment_groups[pos]:
                 yield co
 
         comment_versions = collections.defaultdict(
             lambda: collections.defaultdict(list))
         prev_prvid = -1
         # fake last entry with None, to aggregate on "latest" version which
         # doesn't have an pull_request_version_id
         for ver in versions + [AttributeDict({'pull_request_version_id': None})]:
             prvid = ver.pull_request_version_id
             if prev_prvid == -1:
                 prev_prvid = prvid
 
             for co in yield_comments(prvid):
                 comment_versions[prvid]['at'].append(co)
 
             # save until
             current = comment_versions[prvid]['at']
             prev_until = comment_versions[prev_prvid]['until']
             cur_until = prev_until + current
             comment_versions[prvid]['until'].extend(cur_until)
 
             # save outdated
             if inline:
                 outdated = [x for x in cur_until
                             if x.outdated_at_version(show_version)]
             else:
                 outdated = [x for x in cur_until
                             if x.older_than_version(show_version)]
             display = [x for x in cur_until if x not in outdated]
 
             comment_versions[prvid]['outdated'] = outdated
             comment_versions[prvid]['display'] = display
 
             prev_prvid = prvid
 
         return comment_versions
 
     def get_repository_comments(self, repo, comment_type=None, user=None, commit_id=None):
         qry = Session().query(ChangesetComment) \
             .filter(ChangesetComment.repo == repo)
 
         if comment_type and comment_type in ChangesetComment.COMMENT_TYPES:
             qry = qry.filter(ChangesetComment.comment_type == comment_type)
 
         if user:
             user = self._get_user(user)
             if user:
                 qry = qry.filter(ChangesetComment.user_id == user.user_id)
 
         if commit_id:
             qry = qry.filter(ChangesetComment.revision == commit_id)
 
         qry = qry.order_by(ChangesetComment.created_on)
         return qry.all()
 
     def get_repository_unresolved_todos(self, repo):
         todos = Session().query(ChangesetComment) \
             .filter(ChangesetComment.repo == repo) \
             .filter(ChangesetComment.resolved_by == None) \
             .filter(ChangesetComment.comment_type
                     == ChangesetComment.COMMENT_TYPE_TODO)
         todos = todos.all()
 
         return todos
 
     def get_pull_request_unresolved_todos(self, pull_request, show_outdated=True, include_drafts=True):
 
         todos = Session().query(ChangesetComment) \
             .filter(ChangesetComment.pull_request == pull_request) \
             .filter(ChangesetComment.resolved_by == None) \
             .filter(ChangesetComment.comment_type
                     == ChangesetComment.COMMENT_TYPE_TODO)
 
         if not include_drafts:
             todos = todos.filter(ChangesetComment.draft == false())
 
         if not show_outdated:
             todos = todos.filter(
                 coalesce(ChangesetComment.display_state, '') !=
                 ChangesetComment.COMMENT_OUTDATED)
 
         todos = todos.all()
 
         return todos
 
     def get_pull_request_resolved_todos(self, pull_request, show_outdated=True, include_drafts=True):
 
         todos = Session().query(ChangesetComment) \
             .filter(ChangesetComment.pull_request == pull_request) \
             .filter(ChangesetComment.resolved_by != None) \
             .filter(ChangesetComment.comment_type
                     == ChangesetComment.COMMENT_TYPE_TODO)
 
         if not include_drafts:
             todos = todos.filter(ChangesetComment.draft == false())
 
         if not show_outdated:
             todos = todos.filter(
                 coalesce(ChangesetComment.display_state, '') !=
                 ChangesetComment.COMMENT_OUTDATED)
 
         todos = todos.all()
 
         return todos
 
     def get_commit_unresolved_todos(self, commit_id, show_outdated=True, include_drafts=True):
 
         todos = Session().query(ChangesetComment) \
             .filter(ChangesetComment.revision == commit_id) \
             .filter(ChangesetComment.resolved_by == None) \
             .filter(ChangesetComment.comment_type
                     == ChangesetComment.COMMENT_TYPE_TODO)
 
         if not include_drafts:
             todos = todos.filter(ChangesetComment.draft == false())
 
         if not show_outdated:
             todos = todos.filter(
                 coalesce(ChangesetComment.display_state, '') !=
                 ChangesetComment.COMMENT_OUTDATED)
 
         todos = todos.all()
 
         return todos
 
     def get_commit_resolved_todos(self, commit_id, show_outdated=True, include_drafts=True):
 
         todos = Session().query(ChangesetComment) \
             .filter(ChangesetComment.revision == commit_id) \
             .filter(ChangesetComment.resolved_by != None) \
             .filter(ChangesetComment.comment_type
                     == ChangesetComment.COMMENT_TYPE_TODO)
 
         if not include_drafts:
             todos = todos.filter(ChangesetComment.draft == false())
 
         if not show_outdated:
             todos = todos.filter(
                 coalesce(ChangesetComment.display_state, '') !=
                 ChangesetComment.COMMENT_OUTDATED)
 
         todos = todos.all()
 
         return todos
 
     def get_commit_inline_comments(self, commit_id, include_drafts=True):
         inline_comments = Session().query(ChangesetComment) \
             .filter(ChangesetComment.line_no != None) \
             .filter(ChangesetComment.f_path != None) \
             .filter(ChangesetComment.revision == commit_id)
 
         if not include_drafts:
             inline_comments = inline_comments.filter(ChangesetComment.draft == false())
 
         inline_comments = inline_comments.all()
         return inline_comments
 
     def _log_audit_action(self, action, action_data, auth_user, comment):
         audit_logger.store(
             action=action,
             action_data=action_data,
             user=auth_user,
             repo=comment.repo)
 
     def create(self, text, repo, user, commit_id=None, pull_request=None,
                f_path=None, line_no=None, status_change=None,
                status_change_type=None, comment_type=None, is_draft=False,
                resolves_comment_id=None, closing_pr=False, send_email=True,
                renderer=None, auth_user=None, extra_recipients=None):
         """
         Creates new comment for commit or pull request.
         IF status_change is not none this comment is associated with a
         status change of commit or commit associated with pull request
 
         :param text:
         :param repo:
         :param user:
         :param commit_id:
         :param pull_request:
         :param f_path:
         :param line_no:
         :param status_change: Label for status change
         :param comment_type: Type of comment
         :param is_draft: is comment a draft only
         :param resolves_comment_id: id of comment which this one will resolve
         :param status_change_type: type of status change
         :param closing_pr:
         :param send_email:
         :param renderer: pick renderer for this comment
         :param auth_user: current authenticated user calling this method
         :param extra_recipients: list of extra users to be added to recipients
         """
 
         if not text:
             log.warning('Missing text for comment, skipping...')
             return
         request = get_current_request()
         _ = request.translate
 
         if not renderer:
             renderer = self._get_renderer(request=request)
 
         repo = self._get_repo(repo)
         user = self._get_user(user)
         auth_user = auth_user or user
 
         schema = comment_schema.CommentSchema()
         validated_kwargs = schema.deserialize(dict(
             comment_body=text,
             comment_type=comment_type,
             is_draft=is_draft,
             comment_file=f_path,
             comment_line=line_no,
             renderer_type=renderer,
             status_change=status_change_type,
             resolves_comment_id=resolves_comment_id,
             repo=repo.repo_id,
             user=user.user_id,
         ))
         is_draft = validated_kwargs['is_draft']
 
         comment = ChangesetComment()
         comment.renderer = validated_kwargs['renderer_type']
         comment.text = validated_kwargs['comment_body']
         comment.f_path = validated_kwargs['comment_file']
         comment.line_no = validated_kwargs['comment_line']
         comment.comment_type = validated_kwargs['comment_type']
         comment.draft = is_draft
 
         comment.repo = repo
         comment.author = user
         resolved_comment = self.__get_commit_comment(
             validated_kwargs['resolves_comment_id'])
         # check if the comment actually belongs to this PR
         if resolved_comment and resolved_comment.pull_request and \
                 resolved_comment.pull_request != pull_request:
             log.warning('Comment tried to resolved unrelated todo comment: %s',
                         resolved_comment)
             # comment not bound to this pull request, forbid
             resolved_comment = None
 
         elif resolved_comment and resolved_comment.repo and \
                 resolved_comment.repo != repo:
             log.warning('Comment tried to resolved unrelated todo comment: %s',
                         resolved_comment)
             # comment not bound to this repo, forbid
             resolved_comment = None
 
         comment.resolved_comment = resolved_comment
 
         pull_request_id = pull_request
 
         commit_obj = None
         pull_request_obj = None
 
         if commit_id:
             notification_type = EmailNotificationModel.TYPE_COMMIT_COMMENT
             # do a lookup, so we don't pass something bad here
             commit_obj = repo.scm_instance().get_commit(commit_id=commit_id)
             comment.revision = commit_obj.raw_id
 
         elif pull_request_id:
             notification_type = EmailNotificationModel.TYPE_PULL_REQUEST_COMMENT
             pull_request_obj = self.__get_pull_request(pull_request_id)
             comment.pull_request = pull_request_obj
         else:
             raise Exception('Please specify commit or pull_request_id')
 
         Session().add(comment)
         Session().flush()
         kwargs = {
             'user': user,
             'renderer_type': renderer,
             'repo_name': repo.repo_name,
             'status_change': status_change,
             'status_change_type': status_change_type,
             'comment_body': text,
             'comment_file': f_path,
             'comment_line': line_no,
             'comment_type': comment_type or 'note',
             'comment_id': comment.comment_id
         }
 
         if commit_obj:
             recipients = ChangesetComment.get_users(
                 revision=commit_obj.raw_id)
             # add commit author if it's in RhodeCode system
             cs_author = User.get_from_cs_author(commit_obj.author)
             if not cs_author:
                 # use repo owner if we cannot extract the author correctly
                 cs_author = repo.user
             recipients += [cs_author]
 
             commit_comment_url = self.get_url(comment, request=request)
             commit_comment_reply_url = self.get_url(
                 comment, request=request,
                 anchor='comment-{}/?/ReplyToComment'.format(comment.comment_id))
 
             target_repo_url = h.link_to(
                 repo.repo_name,
                 h.route_url('repo_summary', repo_name=repo.repo_name))
 
             commit_url = h.route_url('repo_commit', repo_name=repo.repo_name,
                                      commit_id=commit_id)
 
             # commit specifics
             kwargs.update({
                 'commit': commit_obj,
                 'commit_message': commit_obj.message,
                 'commit_target_repo_url': target_repo_url,
                 'commit_comment_url': commit_comment_url,
                 'commit_comment_reply_url': commit_comment_reply_url,
                 'commit_url': commit_url,
                 'thread_ids': [commit_url, commit_comment_url],
             })
 
         elif pull_request_obj:
             # get the current participants of this pull request
             recipients = ChangesetComment.get_users(
                 pull_request_id=pull_request_obj.pull_request_id)
             # add pull request author
             recipients += [pull_request_obj.author]
 
             # add the reviewers to notification
             recipients += [x.user for x in pull_request_obj.get_pull_request_reviewers()]
 
             pr_target_repo = pull_request_obj.target_repo
             pr_source_repo = pull_request_obj.source_repo
 
             pr_comment_url = self.get_url(comment, request=request)
             pr_comment_reply_url = self.get_url(
                 comment, request=request,
                 anchor='comment-{}/?/ReplyToComment'.format(comment.comment_id))
 
             pr_url = h.route_url(
                 'pullrequest_show',
                 repo_name=pr_target_repo.repo_name,
                 pull_request_id=pull_request_obj.pull_request_id, )
 
             # set some variables for email notification
             pr_target_repo_url = h.route_url(
                 'repo_summary', repo_name=pr_target_repo.repo_name)
 
             pr_source_repo_url = h.route_url(
                 'repo_summary', repo_name=pr_source_repo.repo_name)
 
             # pull request specifics
             kwargs.update({
                 'pull_request': pull_request_obj,
                 'pr_id': pull_request_obj.pull_request_id,
                 'pull_request_url': pr_url,
                 'pull_request_target_repo': pr_target_repo,
                 'pull_request_target_repo_url': pr_target_repo_url,
                 'pull_request_source_repo': pr_source_repo,
                 'pull_request_source_repo_url': pr_source_repo_url,
                 'pr_comment_url': pr_comment_url,
                 'pr_comment_reply_url': pr_comment_reply_url,
                 'pr_closing': closing_pr,
                 'thread_ids': [pr_url, pr_comment_url],
             })
 
         if send_email:
             recipients += [self._get_user(u) for u in (extra_recipients or [])]
-            # pre-generate the subject for notification itself
-            (subject, _e, body_plaintext) = EmailNotificationModel().render_email(
-                notification_type, **kwargs)
 
             mention_recipients = set(
                 self._extract_mentions(text)).difference(recipients)
 
             # create notification objects, and emails
             NotificationModel().create(
                 created_by=user,
-                notification_subject=subject,
-                notification_body=body_plaintext,
+                notification_subject='',  # Filled in based on the notification_type
+                notification_body='',  # Filled in based on the notification_type
                 notification_type=notification_type,
                 recipients=recipients,
                 mention_recipients=mention_recipients,
                 email_kwargs=kwargs,
             )
 
         Session().flush()
         if comment.pull_request:
             action = 'repo.pull_request.comment.create'
         else:
             action = 'repo.commit.comment.create'
 
         if not is_draft:
             comment_data = comment.get_api_data()
 
             self._log_audit_action(
                 action, {'data': comment_data}, auth_user, comment)
 
         return comment
 
     def edit(self, comment_id, text, auth_user, version):
         """
         Change existing comment for commit or pull request.
 
         :param comment_id:
         :param text:
         :param auth_user: current authenticated user calling this method
         :param version: last comment version
         """
         if not text:
             log.warning('Missing text for comment, skipping...')
             return
 
         comment = ChangesetComment.get(comment_id)
         old_comment_text = comment.text
         comment.text = text
         comment.modified_at = datetime.datetime.now()
         version = safe_int(version)
 
         # NOTE(marcink): this returns initial comment + edits, so v2 from ui
         # would return 3 here
         comment_version = ChangesetCommentHistory.get_version(comment_id)
 
         if isinstance(version, (int, long)) and (comment_version - version) != 1:
             log.warning(
                 'Version mismatch comment_version {} submitted {}, skipping'.format(
                     comment_version-1,  # -1 since note above
                     version
                 )
             )
             raise CommentVersionMismatch()
 
         comment_history = ChangesetCommentHistory()
         comment_history.comment_id = comment_id
         comment_history.version = comment_version
         comment_history.created_by_user_id = auth_user.user_id
         comment_history.text = old_comment_text
         # TODO add email notification
         Session().add(comment_history)
         Session().add(comment)
         Session().flush()
 
         if comment.pull_request:
             action = 'repo.pull_request.comment.edit'
         else:
             action = 'repo.commit.comment.edit'
 
         comment_data = comment.get_api_data()
         comment_data['old_comment_text'] = old_comment_text
         self._log_audit_action(
             action, {'data': comment_data}, auth_user, comment)
 
         return comment_history
 
     def delete(self, comment, auth_user):
         """
         Deletes given comment
         """
         comment = self.__get_commit_comment(comment)
         old_data = comment.get_api_data()
         Session().delete(comment)
 
         if comment.pull_request:
             action = 'repo.pull_request.comment.delete'
         else:
             action = 'repo.commit.comment.delete'
 
         self._log_audit_action(
             action, {'old_data': old_data}, auth_user, comment)
 
         return comment
 
     def get_all_comments(self, repo_id, revision=None, pull_request=None,
                          include_drafts=True, count_only=False):
         q = ChangesetComment.query()\
                 .filter(ChangesetComment.repo_id == repo_id)
         if revision:
             q = q.filter(ChangesetComment.revision == revision)
         elif pull_request:
             pull_request = self.__get_pull_request(pull_request)
             q = q.filter(ChangesetComment.pull_request_id == pull_request.pull_request_id)
         else:
             raise Exception('Please specify commit or pull_request')
         if not include_drafts:
             q = q.filter(ChangesetComment.draft == false())
         q = q.order_by(ChangesetComment.created_on)
         if count_only:
             return q.count()
 
         return q.all()
 
     def get_url(self, comment, request=None, permalink=False, anchor=None):
         if not request:
             request = get_current_request()
 
         comment = self.__get_commit_comment(comment)
         if anchor is None:
             anchor = 'comment-{}'.format(comment.comment_id)
 
         if comment.pull_request:
             pull_request = comment.pull_request
             if permalink:
                 return request.route_url(
                     'pull_requests_global',
                     pull_request_id=pull_request.pull_request_id,
                     _anchor=anchor)
             else:
                 return request.route_url(
                     'pullrequest_show',
                     repo_name=safe_str(pull_request.target_repo.repo_name),
                     pull_request_id=pull_request.pull_request_id,
                     _anchor=anchor)
 
         else:
             repo = comment.repo
             commit_id = comment.revision
 
             if permalink:
                 return request.route_url(
                     'repo_commit', repo_name=safe_str(repo.repo_id),
                     commit_id=commit_id,
                     _anchor=anchor)
 
             else:
                 return request.route_url(
                     'repo_commit', repo_name=safe_str(repo.repo_name),
                     commit_id=commit_id,
                     _anchor=anchor)
 
     def get_comments(self, repo_id, revision=None, pull_request=None):
         """
         Gets main comments based on revision or pull_request_id
 
         :param repo_id:
         :param revision:
         :param pull_request:
         """
 
         q = ChangesetComment.query()\
                 .filter(ChangesetComment.repo_id == repo_id)\
                 .filter(ChangesetComment.line_no == None)\
                 .filter(ChangesetComment.f_path == None)
         if revision:
             q = q.filter(ChangesetComment.revision == revision)
         elif pull_request:
             pull_request = self.__get_pull_request(pull_request)
             q = q.filter(ChangesetComment.pull_request == pull_request)
         else:
             raise Exception('Please specify commit or pull_request')
         q = q.order_by(ChangesetComment.created_on)
         return q.all()
 
     def get_inline_comments(self, repo_id, revision=None, pull_request=None):
         q = self._get_inline_comments_query(repo_id, revision, pull_request)
         return self._group_comments_by_path_and_line_number(q)
 
     def get_inline_comments_as_list(self, inline_comments, skip_outdated=True,
                                     version=None):
         inline_comms = []
         for fname, per_line_comments in inline_comments.iteritems():
             for lno, comments in per_line_comments.iteritems():
                 for comm in comments:
                     if not comm.outdated_at_version(version) and skip_outdated:
                         inline_comms.append(comm)
 
         return inline_comms
 
     def get_outdated_comments(self, repo_id, pull_request):
         # TODO: johbo: Remove `repo_id`, it is not needed to find the comments
         # of a pull request.
         q = self._all_inline_comments_of_pull_request(pull_request)
         q = q.filter(
             ChangesetComment.display_state ==
             ChangesetComment.COMMENT_OUTDATED
         ).order_by(ChangesetComment.comment_id.asc())
 
         return self._group_comments_by_path_and_line_number(q)
 
     def _get_inline_comments_query(self, repo_id, revision, pull_request):
         # TODO: johbo: Split this into two methods: One for PR and one for
         # commit.
         if revision:
             q = Session().query(ChangesetComment).filter(
                 ChangesetComment.repo_id == repo_id,
                 ChangesetComment.line_no != null(),
                 ChangesetComment.f_path != null(),
                 ChangesetComment.revision == revision)
 
         elif pull_request:
             pull_request = self.__get_pull_request(pull_request)
             if not CommentsModel.use_outdated_comments(pull_request):
                 q = self._visible_inline_comments_of_pull_request(pull_request)
             else:
                 q = self._all_inline_comments_of_pull_request(pull_request)
 
         else:
             raise Exception('Please specify commit or pull_request_id')
         q = q.order_by(ChangesetComment.comment_id.asc())
         return q
 
     def _group_comments_by_path_and_line_number(self, q):
         comments = q.all()
         paths = collections.defaultdict(lambda: collections.defaultdict(list))
         for co in comments:
             paths[co.f_path][co.line_no].append(co)
         return paths
 
     @classmethod
     def needed_extra_diff_context(cls):
         return max(cls.DIFF_CONTEXT_BEFORE, cls.DIFF_CONTEXT_AFTER)
 
     def outdate_comments(self, pull_request, old_diff_data, new_diff_data):
         if not CommentsModel.use_outdated_comments(pull_request):
             return
 
         comments = self._visible_inline_comments_of_pull_request(pull_request)
         comments_to_outdate = comments.all()
 
         for comment in comments_to_outdate:
             self._outdate_one_comment(comment, old_diff_data, new_diff_data)
 
     def _outdate_one_comment(self, comment, old_diff_proc, new_diff_proc):
         diff_line = _parse_comment_line_number(comment.line_no)
 
         try:
             old_context = old_diff_proc.get_context_of_line(
                 path=comment.f_path, diff_line=diff_line)
             new_context = new_diff_proc.get_context_of_line(
                 path=comment.f_path, diff_line=diff_line)
         except (diffs.LineNotInDiffException,
                 diffs.FileNotInDiffException):
             if not comment.draft:
                 comment.display_state = ChangesetComment.COMMENT_OUTDATED
             return
 
         if old_context == new_context:
             return
 
         if self._should_relocate_diff_line(diff_line):
             new_diff_lines = new_diff_proc.find_context(
                 path=comment.f_path, context=old_context,
                 offset=self.DIFF_CONTEXT_BEFORE)
             if not new_diff_lines and not comment.draft:
                 comment.display_state = ChangesetComment.COMMENT_OUTDATED
             else:
                 new_diff_line = self._choose_closest_diff_line(
                     diff_line, new_diff_lines)
                 comment.line_no = _diff_to_comment_line_number(new_diff_line)
         else:
             if not comment.draft:
                 comment.display_state = ChangesetComment.COMMENT_OUTDATED
 
     def _should_relocate_diff_line(self, diff_line):
         """
         Checks if relocation shall be tried for the given `diff_line`.
 
         If a comment points into the first lines, then we can have a situation
         that after an update another line has been added on top. In this case
         we would find the context still and move the comment around. This
         would be wrong.
         """
         should_relocate = (
             (diff_line.new and diff_line.new > self.DIFF_CONTEXT_BEFORE) or
             (diff_line.old and diff_line.old > self.DIFF_CONTEXT_BEFORE))
         return should_relocate
 
     def _choose_closest_diff_line(self, diff_line, new_diff_lines):
         candidate = new_diff_lines[0]
         best_delta = _diff_line_delta(diff_line, candidate)
         for new_diff_line in new_diff_lines[1:]:
             delta = _diff_line_delta(diff_line, new_diff_line)
             if delta < best_delta:
                 candidate = new_diff_line
                 best_delta = delta
         return candidate
 
     def _visible_inline_comments_of_pull_request(self, pull_request):
         comments = self._all_inline_comments_of_pull_request(pull_request)
         comments = comments.filter(
             coalesce(ChangesetComment.display_state, '') !=
             ChangesetComment.COMMENT_OUTDATED)
         return comments
 
     def _all_inline_comments_of_pull_request(self, pull_request):
         comments = Session().query(ChangesetComment)\
             .filter(ChangesetComment.line_no != None)\
             .filter(ChangesetComment.f_path != None)\
             .filter(ChangesetComment.pull_request == pull_request)
         return comments
 
     def _all_general_comments_of_pull_request(self, pull_request):
         comments = Session().query(ChangesetComment)\
             .filter(ChangesetComment.line_no == None)\
             .filter(ChangesetComment.f_path == None)\
             .filter(ChangesetComment.pull_request == pull_request)
 
         return comments
 
     @staticmethod
     def use_outdated_comments(pull_request):
         settings_model = VcsSettingsModel(repo=pull_request.target_repo)
         settings = settings_model.get_general_settings()
         return settings.get('rhodecode_use_outdated_comments', False)
 
     def trigger_commit_comment_hook(self, repo, user, action, data=None):
         repo = self._get_repo(repo)
         target_scm = repo.scm_instance()
         if action == 'create':
             trigger_hook = hooks_utils.trigger_comment_commit_hooks
         elif action == 'edit':
             trigger_hook = hooks_utils.trigger_comment_commit_edit_hooks
         else:
             return
 
         log.debug('Handling repo %s trigger_commit_comment_hook with action %s: %s',
                   repo, action, trigger_hook)
         trigger_hook(
             username=user.username,
             repo_name=repo.repo_name,
             repo_type=target_scm.alias,
             repo=repo,
             data=data)
 
 
 def _parse_comment_line_number(line_no):
     """
     Parses line numbers of the form "(o|n)\d+" and returns them in a tuple.
     """
     old_line = None
     new_line = None
     if line_no.startswith('o'):
         old_line = int(line_no[1:])
     elif line_no.startswith('n'):
         new_line = int(line_no[1:])
     else:
         raise ValueError("Comment lines have to start with either 'o' or 'n'.")
     return diffs.DiffLineNumber(old_line, new_line)
 
 
 def _diff_to_comment_line_number(diff_line):
     if diff_line.new is not None:
         return u'n{}'.format(diff_line.new)
     elif diff_line.old is not None:
         return u'o{}'.format(diff_line.old)
     return u''
 
 
 def _diff_line_delta(a, b):
     if None not in (a.new, b.new):
         return abs(a.new - b.new)
     elif None not in (a.old, b.old):
         return abs(a.old - b.old)
     else:
         raise ValueError(
             "Cannot compute delta between {} and {}".format(a, b))

rhodecode/model/notification.py

@@ -1,435 +1,450 b''
 # -*- coding: utf-8 -*-
 
 # Copyright (C) 2011-2020 RhodeCode GmbH
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License, version 3
 # (only), as published by the Free Software Foundation.
 #
 # 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 Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 # This program is dual-licensed. If you wish to learn more about the
 # RhodeCode Enterprise Edition, including its added features, Support services,
 # and proprietary license terms, please see https://rhodecode.com/licenses/
 
 
 """
 Model for notifications
 """
 
 import logging
 import traceback
 
 import premailer
 from pyramid.threadlocal import get_current_request
 from sqlalchemy.sql.expression import false, true
 
 import rhodecode
 from rhodecode.lib import helpers as h
 from rhodecode.model import BaseModel
 from rhodecode.model.db import Notification, User, UserNotification
 from rhodecode.model.meta import Session
 from rhodecode.translation import TranslationString
 
 log = logging.getLogger(__name__)
 
 
 class NotificationModel(BaseModel):
 
     cls = Notification
 
     def __get_notification(self, notification):
         if isinstance(notification, Notification):
             return notification
         elif isinstance(notification, (int, long)):
             return Notification.get(notification)
         else:
             if notification:
                 raise Exception('notification must be int, long or Instance'
                                 ' of Notification got %s' % type(notification))
 
     def create(
-            self, created_by, notification_subject, notification_body,
+            self, created_by, notification_subject='', notification_body='',
             notification_type=Notification.TYPE_MESSAGE, recipients=None,
             mention_recipients=None, with_email=True, email_kwargs=None):
         """
 
         Creates notification of given type
 
         :param created_by: int, str or User instance. User who created this
             notification
-        :param notification_subject: subject of notification itself
+        :param notification_subject: subject of notification itself,
+            it will be generated automatically from notification_type if not specified
         :param notification_body: body of notification text
+            it will be generated automatically from notification_type if not specified
         :param notification_type: type of notification, based on that we
             pick templates
-
         :param recipients: list of int, str or User objects, when None
             is given send to all admins
         :param mention_recipients: list of int, str or User objects,
             that were mentioned
         :param with_email: send email with this notification
         :param email_kwargs: dict with arguments to generate email
         """
 
         from rhodecode.lib.celerylib import tasks, run_task
 
         if recipients and not getattr(recipients, '__iter__', False):
             raise Exception('recipients must be an iterable object')
 
+        if not (notification_subject and notification_body) and not notification_type:
+            raise ValueError('notification_subject, and notification_body '
+                             'cannot be empty when notification_type is not specified')
+
         created_by_obj = self._get_user(created_by)
+
+        if not created_by_obj:
+            raise Exception('unknown user %s' % created_by)
+
         # default MAIN body if not given
         email_kwargs = email_kwargs or {'body': notification_body}
         mention_recipients = mention_recipients or set()
 
-        if not created_by_obj:
-            raise Exception('unknown user %s' % created_by)
-
         if recipients is None:
             # recipients is None means to all admins
             recipients_objs = User.query().filter(User.admin == true()).all()
             log.debug('sending notifications %s to admins: %s',
                       notification_type, recipients_objs)
         else:
             recipients_objs = set()
             for u in recipients:
                 obj = self._get_user(u)
                 if obj:
                     recipients_objs.add(obj)
                 else:  # we didn't find this user, log the error and carry on
                     log.error('cannot notify unknown user %r', u)
 
             if not recipients_objs:
                 raise Exception('no valid recipients specified')
 
             log.debug('sending notifications %s to %s',
                       notification_type, recipients_objs)
 
         # add mentioned users into recipients
         final_recipients = set(recipients_objs).union(mention_recipients)
 
+        (subject, email_body, email_body_plaintext) = \
+            EmailNotificationModel().render_email(notification_type, **email_kwargs)
+
+        if not notification_subject:
+            notification_subject = subject
+
+        if not notification_body:
+            notification_body = email_body_plaintext
+
         notification = Notification.create(
             created_by=created_by_obj, subject=notification_subject,
             body=notification_body, recipients=final_recipients,
             type_=notification_type
         )
 
         if not with_email:  # skip sending email, and just create notification
             return notification
 
         # don't send email to person who created this comment
         rec_objs = set(recipients_objs).difference({created_by_obj})
 
         # now notify all recipients in question
 
         for recipient in rec_objs.union(mention_recipients):
             # inject current recipient
             email_kwargs['recipient'] = recipient
             email_kwargs['mention'] = recipient in mention_recipients
             (subject, email_body, email_body_plaintext) = EmailNotificationModel().render_email(
                 notification_type, **email_kwargs)
 
             extra_headers = None
             if 'thread_ids' in email_kwargs:
                 extra_headers = {'thread_ids': email_kwargs.pop('thread_ids')}
 
             log.debug('Creating notification email task for user:`%s`', recipient)
             task = run_task(
                 tasks.send_email, recipient.email, subject,
                 email_body_plaintext, email_body, extra_headers=extra_headers)
             log.debug('Created email task: %s', task)
 
         return notification
 
     def delete(self, user, notification):
         # we don't want to remove actual notification just the assignment
         try:
             notification = self.__get_notification(notification)
             user = self._get_user(user)
             if notification and user:
                 obj = UserNotification.query()\
                     .filter(UserNotification.user == user)\
                     .filter(UserNotification.notification == notification)\
                     .one()
                 Session().delete(obj)
                 return True
         except Exception:
             log.error(traceback.format_exc())
             raise
 
     def get_for_user(self, user, filter_=None):
         """
         Get mentions for given user, filter them if filter dict is given
         """
         user = self._get_user(user)
 
         q = UserNotification.query()\
             .filter(UserNotification.user == user)\
             .join((
                 Notification, UserNotification.notification_id ==
                 Notification.notification_id))
         if filter_ == ['all']:
             q = q  # no filter
         elif filter_ == ['unread']:
             q = q.filter(UserNotification.read == false())
         elif filter_:
             q = q.filter(Notification.type_.in_(filter_))
 
         return q
 
     def mark_read(self, user, notification):
         try:
             notification = self.__get_notification(notification)
             user = self._get_user(user)
             if notification and user:
                 obj = UserNotification.query()\
                     .filter(UserNotification.user == user)\
                     .filter(UserNotification.notification == notification)\
                     .one()
                 obj.read = True
                 Session().add(obj)
                 return True
         except Exception:
             log.error(traceback.format_exc())
             raise
 
     def mark_all_read_for_user(self, user, filter_=None):
         user = self._get_user(user)
         q = UserNotification.query()\
             .filter(UserNotification.user == user)\
             .filter(UserNotification.read == false())\
             .join((
                 Notification, UserNotification.notification_id ==
                 Notification.notification_id))
         if filter_ == ['unread']:
             q = q.filter(UserNotification.read == false())
         elif filter_:
             q = q.filter(Notification.type_.in_(filter_))
 
         # this is a little inefficient but sqlalchemy doesn't support
         # update on joined tables :(
         for obj in q.all():
             obj.read = True
             Session().add(obj)
 
     def get_unread_cnt_for_user(self, user):
         user = self._get_user(user)
         return UserNotification.query()\
             .filter(UserNotification.read == false())\
             .filter(UserNotification.user == user).count()
 
     def get_unread_for_user(self, user):
         user = self._get_user(user)
         return [x.notification for x in UserNotification.query()
                 .filter(UserNotification.read == false())
                 .filter(UserNotification.user == user).all()]
 
     def get_user_notification(self, user, notification):
         user = self._get_user(user)
         notification = self.__get_notification(notification)
 
         return UserNotification.query()\
             .filter(UserNotification.notification == notification)\
             .filter(UserNotification.user == user).scalar()
 
     def make_description(self, notification, translate, show_age=True):
         """
         Creates a human readable description based on properties
         of notification object
         """
         _ = translate
         _map = {
             notification.TYPE_CHANGESET_COMMENT: [
                 _('%(user)s commented on commit %(date_or_age)s'),
                 _('%(user)s commented on commit at %(date_or_age)s'),
                 ],
             notification.TYPE_MESSAGE: [
                 _('%(user)s sent message %(date_or_age)s'),
                 _('%(user)s sent message at %(date_or_age)s'),
                 ],
             notification.TYPE_MENTION: [
                 _('%(user)s mentioned you %(date_or_age)s'),
                 _('%(user)s mentioned you at %(date_or_age)s'),
                 ],
             notification.TYPE_REGISTRATION: [
                 _('%(user)s registered in RhodeCode %(date_or_age)s'),
                 _('%(user)s registered in RhodeCode at %(date_or_age)s'),
                 ],
             notification.TYPE_PULL_REQUEST: [
                 _('%(user)s opened new pull request %(date_or_age)s'),
                 _('%(user)s opened new pull request at %(date_or_age)s'),
                 ],
             notification.TYPE_PULL_REQUEST_UPDATE: [
                 _('%(user)s updated pull request %(date_or_age)s'),
                 _('%(user)s updated pull request at %(date_or_age)s'),
             ],
             notification.TYPE_PULL_REQUEST_COMMENT: [
                 _('%(user)s commented on pull request %(date_or_age)s'),
                 _('%(user)s commented on pull request at %(date_or_age)s'),
                 ],
         }
 
         templates = _map[notification.type_]
 
         if show_age:
             template = templates[0]
             date_or_age = h.age(notification.created_on)
             if translate:
                 date_or_age = translate(date_or_age)
 
             if isinstance(date_or_age, TranslationString):
                 date_or_age = date_or_age.interpolate()
 
         else:
             template = templates[1]
             date_or_age = h.format_date(notification.created_on)
 
         return template % {
             'user': notification.created_by_user.username,
             'date_or_age': date_or_age,
         }
 
 
 # Templates for Titles, that could be overwritten by rcextensions
 # Title of email for pull-request update
 EMAIL_PR_UPDATE_SUBJECT_TEMPLATE = ''
 # Title of email for request for pull request review
 EMAIL_PR_REVIEW_SUBJECT_TEMPLATE = ''
 
 # Title of email for general comment on pull request
 EMAIL_PR_COMMENT_SUBJECT_TEMPLATE = ''
 # Title of email for general comment which includes status change on pull request
 EMAIL_PR_COMMENT_STATUS_CHANGE_SUBJECT_TEMPLATE = ''
 # Title of email for inline comment on a file in pull request
 EMAIL_PR_COMMENT_FILE_SUBJECT_TEMPLATE = ''
 
 # Title of email for general comment on commit
 EMAIL_COMMENT_SUBJECT_TEMPLATE = ''
 # Title of email for general comment which includes status change on commit
 EMAIL_COMMENT_STATUS_CHANGE_SUBJECT_TEMPLATE = ''
 # Title of email for inline comment on a file in commit
 EMAIL_COMMENT_FILE_SUBJECT_TEMPLATE = ''
 
 
 class EmailNotificationModel(BaseModel):
     TYPE_COMMIT_COMMENT = Notification.TYPE_CHANGESET_COMMENT
     TYPE_REGISTRATION = Notification.TYPE_REGISTRATION
     TYPE_PULL_REQUEST = Notification.TYPE_PULL_REQUEST
     TYPE_PULL_REQUEST_COMMENT = Notification.TYPE_PULL_REQUEST_COMMENT
     TYPE_PULL_REQUEST_UPDATE = Notification.TYPE_PULL_REQUEST_UPDATE
     TYPE_MAIN = Notification.TYPE_MESSAGE
 
     TYPE_PASSWORD_RESET = 'password_reset'
     TYPE_PASSWORD_RESET_CONFIRMATION = 'password_reset_confirmation'
     TYPE_EMAIL_TEST = 'email_test'
     TYPE_EMAIL_EXCEPTION = 'exception'
     TYPE_TEST = 'test'
 
     email_types = {
         TYPE_MAIN:
             'rhodecode:templates/email_templates/main.mako',
         TYPE_TEST:
             'rhodecode:templates/email_templates/test.mako',
         TYPE_EMAIL_EXCEPTION:
             'rhodecode:templates/email_templates/exception_tracker.mako',
         TYPE_EMAIL_TEST:
             'rhodecode:templates/email_templates/email_test.mako',
         TYPE_REGISTRATION:
             'rhodecode:templates/email_templates/user_registration.mako',
         TYPE_PASSWORD_RESET:
             'rhodecode:templates/email_templates/password_reset.mako',
         TYPE_PASSWORD_RESET_CONFIRMATION:
             'rhodecode:templates/email_templates/password_reset_confirmation.mako',
         TYPE_COMMIT_COMMENT:
             'rhodecode:templates/email_templates/commit_comment.mako',
         TYPE_PULL_REQUEST:
             'rhodecode:templates/email_templates/pull_request_review.mako',
         TYPE_PULL_REQUEST_COMMENT:
             'rhodecode:templates/email_templates/pull_request_comment.mako',
         TYPE_PULL_REQUEST_UPDATE:
             'rhodecode:templates/email_templates/pull_request_update.mako',
     }
 
     premailer_instance = premailer.Premailer(
         cssutils_logging_level=logging.ERROR,
         cssutils_logging_handler=logging.getLogger().handlers[0]
         if logging.getLogger().handlers else None,
     )
 
     def __init__(self):
         """
         Example usage::
 
             (subject, email_body, email_body_plaintext) = EmailNotificationModel().render_email(
                 EmailNotificationModel.TYPE_TEST, **email_kwargs)
 
         """
         super(EmailNotificationModel, self).__init__()
         self.rhodecode_instance_name = rhodecode.CONFIG.get('rhodecode_title')
 
     def _update_kwargs_for_render(self, kwargs):
         """
         Inject params required for Mako rendering
 
         :param kwargs:
         """
 
         kwargs['rhodecode_instance_name'] = self.rhodecode_instance_name
         kwargs['rhodecode_version'] = rhodecode.__version__
         instance_url = h.route_url('home')
         _kwargs = {
             'instance_url': instance_url,
             'whitespace_filter': self.whitespace_filter,
             'email_pr_update_subject_template': EMAIL_PR_UPDATE_SUBJECT_TEMPLATE,
             'email_pr_review_subject_template': EMAIL_PR_REVIEW_SUBJECT_TEMPLATE,
             'email_pr_comment_subject_template': EMAIL_PR_COMMENT_SUBJECT_TEMPLATE,
             'email_pr_comment_status_change_subject_template': EMAIL_PR_COMMENT_STATUS_CHANGE_SUBJECT_TEMPLATE,
             'email_pr_comment_file_subject_template': EMAIL_PR_COMMENT_FILE_SUBJECT_TEMPLATE,
             'email_comment_subject_template': EMAIL_COMMENT_SUBJECT_TEMPLATE,
             'email_comment_status_change_subject_template': EMAIL_COMMENT_STATUS_CHANGE_SUBJECT_TEMPLATE,
             'email_comment_file_subject_template': EMAIL_COMMENT_FILE_SUBJECT_TEMPLATE,
         }
         _kwargs.update(kwargs)
         return _kwargs
 
     def whitespace_filter(self, text):
         return text.replace('\n', '').replace('\t', '')
 
     def get_renderer(self, type_, request):
         template_name = self.email_types[type_]
         return request.get_partial_renderer(template_name)
 
     def render_email(self, type_, **kwargs):
         """
         renders template for email, and returns a tuple of
         (subject, email_headers, email_html_body, email_plaintext_body)
         """
         # translator and helpers inject
         _kwargs = self._update_kwargs_for_render(kwargs)
         request = get_current_request()
         email_template = self.get_renderer(type_, request=request)
 
         subject = email_template.render('subject', **_kwargs)
 
         try:
             body_plaintext = email_template.render('body_plaintext', **_kwargs)
         except AttributeError:
             # it's not defined in template, ok we can skip it
             body_plaintext = ''
 
         # render WHOLE template
         body = email_template.render(None, **_kwargs)
 
         try:
             # Inline CSS styles and conversion
             body = self.premailer_instance.transform(body)
         except Exception:
             log.exception('Failed to parse body with premailer')
             pass
 
         return subject, body, body_plaintext

rhodecode/model/pull_request.py

@@ -1,2237 +1,2230 b''
 # -*- coding: utf-8 -*-
 
 # Copyright (C) 2012-2020 RhodeCode GmbH
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License, version 3
 # (only), as published by the Free Software Foundation.
 #
 # 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 Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 # This program is dual-licensed. If you wish to learn more about the
 # RhodeCode Enterprise Edition, including its added features, Support services,
 # and proprietary license terms, please see https://rhodecode.com/licenses/
 
 
 """
 pull request model for RhodeCode
 """
 
 
 import json
 import logging
 import os
 
 import datetime
 import urllib
 import collections
 
 from pyramid import compat
 from pyramid.threadlocal import get_current_request
 
 from rhodecode.lib.vcs.nodes import FileNode
 from rhodecode.translation import lazy_ugettext
 from rhodecode.lib import helpers as h, hooks_utils, diffs
 from rhodecode.lib import audit_logger
 from rhodecode.lib.compat import OrderedDict
 from rhodecode.lib.hooks_daemon import prepare_callback_daemon
 from rhodecode.lib.markup_renderer import (
     DEFAULT_COMMENTS_RENDERER, RstTemplateRenderer)
 from rhodecode.lib.utils2 import (
     safe_unicode, safe_str, md5_safe, AttributeDict, safe_int,
     get_current_rhodecode_user)
 from rhodecode.lib.vcs.backends.base import (
     Reference, MergeResponse, MergeFailureReason, UpdateFailureReason,
     TargetRefMissing, SourceRefMissing)
 from rhodecode.lib.vcs.conf import settings as vcs_settings
 from rhodecode.lib.vcs.exceptions import (
     CommitDoesNotExistError, EmptyRepositoryError)
 from rhodecode.model import BaseModel
 from rhodecode.model.changeset_status import ChangesetStatusModel
 from rhodecode.model.comment import CommentsModel
 from rhodecode.model.db import (
     or_, String, cast, PullRequest, PullRequestReviewers, ChangesetStatus,
     PullRequestVersion, ChangesetComment, Repository, RepoReviewRule, User)
 from rhodecode.model.meta import Session
 from rhodecode.model.notification import NotificationModel, \
     EmailNotificationModel
 from rhodecode.model.scm import ScmModel
 from rhodecode.model.settings import VcsSettingsModel
 
 
 log = logging.getLogger(__name__)
 
 
 # Data structure to hold the response data when updating commits during a pull
 # request update.
 class UpdateResponse(object):
 
     def __init__(self, executed, reason, new, old, common_ancestor_id,
                  commit_changes, source_changed, target_changed):
 
         self.executed = executed
         self.reason = reason
         self.new = new
         self.old = old
         self.common_ancestor_id = common_ancestor_id
         self.changes = commit_changes
         self.source_changed = source_changed
         self.target_changed = target_changed
 
 
 def get_diff_info(
         source_repo, source_ref, target_repo, target_ref, get_authors=False,
         get_commit_authors=True):
     """
     Calculates detailed diff information for usage in preview of creation of a pull-request.
     This is also used for default reviewers logic
     """
 
     source_scm = source_repo.scm_instance()
     target_scm = target_repo.scm_instance()
 
     ancestor_id = target_scm.get_common_ancestor(target_ref, source_ref, source_scm)
     if not ancestor_id:
         raise ValueError(
             'cannot calculate diff info without a common ancestor. '
             'Make sure both repositories are related, and have a common forking commit.')
 
     # case here is that want a simple diff without incoming commits,
     # previewing what will be merged based only on commits in the source.
     log.debug('Using ancestor %s as source_ref instead of %s',
               ancestor_id, source_ref)
 
     # source of changes now is the common ancestor
     source_commit = source_scm.get_commit(commit_id=ancestor_id)
     # target commit becomes the source ref as it is the last commit
     # for diff generation this logic gives proper diff
     target_commit = source_scm.get_commit(commit_id=source_ref)
 
     vcs_diff = \
         source_scm.get_diff(commit1=source_commit, commit2=target_commit,
                             ignore_whitespace=False, context=3)
 
     diff_processor = diffs.DiffProcessor(
         vcs_diff, format='newdiff', diff_limit=None,
         file_limit=None, show_full_diff=True)
 
     _parsed = diff_processor.prepare()
 
     all_files = []
     all_files_changes = []
     changed_lines = {}
     stats = [0, 0]
     for f in _parsed:
         all_files.append(f['filename'])
         all_files_changes.append({
             'filename': f['filename'],
             'stats': f['stats']
         })
         stats[0] += f['stats']['added']
         stats[1] += f['stats']['deleted']
 
         changed_lines[f['filename']] = []
         if len(f['chunks']) < 2:
             continue
         # first line is "context" information
         for chunks in f['chunks'][1:]:
             for chunk in chunks['lines']:
                 if chunk['action'] not in ('del', 'mod'):
                     continue
                 changed_lines[f['filename']].append(chunk['old_lineno'])
 
     commit_authors = []
     user_counts = {}
     email_counts = {}
     author_counts = {}
     _commit_cache = {}
 
     commits = []
     if get_commit_authors:
         log.debug('Obtaining commit authors from set of commits')
         _compare_data = target_scm.compare(
             target_ref, source_ref, source_scm, merge=True,
             pre_load=["author", "date", "message"]
         )
 
         for commit in _compare_data:
             # NOTE(marcink): we serialize here, so we don't produce more vcsserver calls on data returned
             # at this function which is later called via JSON serialization
             serialized_commit = dict(
                 author=commit.author,
                 date=commit.date,
                 message=commit.message,
                 commit_id=commit.raw_id,
                 raw_id=commit.raw_id
             )
             commits.append(serialized_commit)
             user = User.get_from_cs_author(serialized_commit['author'])
             if user and user not in commit_authors:
                 commit_authors.append(user)
 
     # lines
     if get_authors:
         log.debug('Calculating authors of changed files')
         target_commit = source_repo.get_commit(ancestor_id)
 
         for fname, lines in changed_lines.items():
 
             try:
                 node = target_commit.get_node(fname, pre_load=["is_binary"])
             except Exception:
                 log.exception("Failed to load node with path %s", fname)
                 continue
 
             if not isinstance(node, FileNode):
                 continue
 
             # NOTE(marcink): for binary node we don't do annotation, just use last author
             if node.is_binary:
                 author = node.last_commit.author
                 email = node.last_commit.author_email
 
                 user = User.get_from_cs_author(author)
                 if user:
                     user_counts[user.user_id] = user_counts.get(user.user_id, 0) + 1
                 author_counts[author] = author_counts.get(author, 0) + 1
                 email_counts[email] = email_counts.get(email, 0) + 1
 
                 continue
 
             for annotation in node.annotate:
                 line_no, commit_id, get_commit_func, line_text = annotation
                 if line_no in lines:
                     if commit_id not in _commit_cache:
                         _commit_cache[commit_id] = get_commit_func()
                     commit = _commit_cache[commit_id]
                     author = commit.author
                     email = commit.author_email
                     user = User.get_from_cs_author(author)
                     if user:
                         user_counts[user.user_id] = user_counts.get(user.user_id, 0) + 1
                     author_counts[author] = author_counts.get(author, 0) + 1
                     email_counts[email] = email_counts.get(email, 0) + 1
 
     log.debug('Default reviewers processing finished')
 
     return {
         'commits': commits,
         'files': all_files_changes,
         'stats': stats,
         'ancestor': ancestor_id,
         # original authors of modified files
         'original_authors': {
             'users': user_counts,
             'authors': author_counts,
             'emails': email_counts,
         },
         'commit_authors': commit_authors
     }
 
 
 class PullRequestModel(BaseModel):
 
     cls = PullRequest
 
     DIFF_CONTEXT = diffs.DEFAULT_CONTEXT
 
     UPDATE_STATUS_MESSAGES = {
         UpdateFailureReason.NONE: lazy_ugettext(
             'Pull request update successful.'),
         UpdateFailureReason.UNKNOWN: lazy_ugettext(
             'Pull request update failed because of an unknown error.'),
         UpdateFailureReason.NO_CHANGE: lazy_ugettext(
             'No update needed because the source and target have not changed.'),
         UpdateFailureReason.WRONG_REF_TYPE: lazy_ugettext(
             'Pull request cannot be updated because the reference type is '
             'not supported for an update. Only Branch, Tag or Bookmark is allowed.'),
         UpdateFailureReason.MISSING_TARGET_REF: lazy_ugettext(
             'This pull request cannot be updated because the target '
             'reference is missing.'),
         UpdateFailureReason.MISSING_SOURCE_REF: lazy_ugettext(
             'This pull request cannot be updated because the source '
             'reference is missing.'),
     }
     REF_TYPES = ['bookmark', 'book', 'tag', 'branch']
     UPDATABLE_REF_TYPES = ['bookmark', 'book', 'branch']
 
     def __get_pull_request(self, pull_request):
         return self._get_instance((
             PullRequest, PullRequestVersion), pull_request)
 
     def _check_perms(self, perms, pull_request, user, api=False):
         if not api:
             return h.HasRepoPermissionAny(*perms)(
                 user=user, repo_name=pull_request.target_repo.repo_name)
         else:
             return h.HasRepoPermissionAnyApi(*perms)(
                 user=user, repo_name=pull_request.target_repo.repo_name)
 
     def check_user_read(self, pull_request, user, api=False):
         _perms = ('repository.admin', 'repository.write', 'repository.read',)
         return self._check_perms(_perms, pull_request, user, api)
 
     def check_user_merge(self, pull_request, user, api=False):
         _perms = ('repository.admin', 'repository.write', 'hg.admin',)
         return self._check_perms(_perms, pull_request, user, api)
 
     def check_user_update(self, pull_request, user, api=False):
         owner = user.user_id == pull_request.user_id
         return self.check_user_merge(pull_request, user, api) or owner
 
     def check_user_delete(self, pull_request, user):
         owner = user.user_id == pull_request.user_id
         _perms = ('repository.admin',)
         return self._check_perms(_perms, pull_request, user) or owner
 
     def is_user_reviewer(self, pull_request, user):
         return user.user_id in [
             x.user_id for x in
             pull_request.get_pull_request_reviewers(PullRequestReviewers.ROLE_REVIEWER)
             if x.user
         ]
 
     def check_user_change_status(self, pull_request, user, api=False):
         return self.check_user_update(pull_request, user, api) \
                or self.is_user_reviewer(pull_request, user)
 
     def check_user_comment(self, pull_request, user):
         owner = user.user_id == pull_request.user_id
         return self.check_user_read(pull_request, user) or owner
 
     def get(self, pull_request):
         return self.__get_pull_request(pull_request)
 
     def _prepare_get_all_query(self, repo_name, search_q=None, source=False,
                                statuses=None, opened_by=None, order_by=None,
                                order_dir='desc', only_created=False):
         repo = None
         if repo_name:
             repo = self._get_repo(repo_name)
 
         q = PullRequest.query()
 
         if search_q:
             like_expression = u'%{}%'.format(safe_unicode(search_q))
             q = q.join(User)
             q = q.filter(or_(
                 cast(PullRequest.pull_request_id, String).ilike(like_expression),
                 User.username.ilike(like_expression),
                 PullRequest.title.ilike(like_expression),
                 PullRequest.description.ilike(like_expression),
             ))
 
         # source or target
         if repo and source:
             q = q.filter(PullRequest.source_repo == repo)
         elif repo:
             q = q.filter(PullRequest.target_repo == repo)
 
         # closed,opened
         if statuses:
             q = q.filter(PullRequest.status.in_(statuses))
 
         # opened by filter
         if opened_by:
             q = q.filter(PullRequest.user_id.in_(opened_by))
 
         # only get those that are in "created" state
         if only_created:
             q = q.filter(PullRequest.pull_request_state == PullRequest.STATE_CREATED)
 
         if order_by:
             order_map = {
                 'name_raw': PullRequest.pull_request_id,
                 'id': PullRequest.pull_request_id,
                 'title': PullRequest.title,
                 'updated_on_raw': PullRequest.updated_on,
                 'target_repo': PullRequest.target_repo_id
             }
             if order_dir == 'asc':
                 q = q.order_by(order_map[order_by].asc())
             else:
                 q = q.order_by(order_map[order_by].desc())
 
         return q
 
     def count_all(self, repo_name, search_q=None, source=False, statuses=None,
                   opened_by=None):
         """
         Count the number of pull requests for a specific repository.
 
         :param repo_name: target or source repo
         :param search_q: filter by text
         :param source: boolean flag to specify if repo_name refers to source
         :param statuses: list of pull request statuses
         :param opened_by: author user of the pull request
         :returns: int number of pull requests
         """
         q = self._prepare_get_all_query(
             repo_name, search_q=search_q, source=source, statuses=statuses,
             opened_by=opened_by)
 
         return q.count()
 
     def get_all(self, repo_name, search_q=None, source=False, statuses=None,
                 opened_by=None, offset=0, length=None, order_by=None, order_dir='desc'):
         """
         Get all pull requests for a specific repository.
 
         :param repo_name: target or source repo
         :param search_q: filter by text
         :param source: boolean flag to specify if repo_name refers to source
         :param statuses: list of pull request statuses
         :param opened_by: author user of the pull request
         :param offset: pagination offset
         :param length: length of returned list
         :param order_by: order of the returned list
         :param order_dir: 'asc' or 'desc' ordering direction
         :returns: list of pull requests
         """
         q = self._prepare_get_all_query(
             repo_name, search_q=search_q, source=source, statuses=statuses,
             opened_by=opened_by, order_by=order_by, order_dir=order_dir)
 
         if length:
             pull_requests = q.limit(length).offset(offset).all()
         else:
             pull_requests = q.all()
 
         return pull_requests
 
     def count_awaiting_review(self, repo_name, search_q=None, source=False, statuses=None,
                               opened_by=None):
         """
         Count the number of pull requests for a specific repository that are
         awaiting review.
 
         :param repo_name: target or source repo
         :param search_q: filter by text
         :param source: boolean flag to specify if repo_name refers to source
         :param statuses: list of pull request statuses
         :param opened_by: author user of the pull request
         :returns: int number of pull requests
         """
         pull_requests = self.get_awaiting_review(
             repo_name, search_q=search_q, source=source, statuses=statuses, opened_by=opened_by)
 
         return len(pull_requests)
 
     def get_awaiting_review(self, repo_name, search_q=None, source=False, statuses=None,
                             opened_by=None, offset=0, length=None,
                             order_by=None, order_dir='desc'):
         """
         Get all pull requests for a specific repository that are awaiting
         review.
 
         :param repo_name: target or source repo
         :param search_q: filter by text
         :param source: boolean flag to specify if repo_name refers to source
         :param statuses: list of pull request statuses
         :param opened_by: author user of the pull request
         :param offset: pagination offset
         :param length: length of returned list
         :param order_by: order of the returned list
         :param order_dir: 'asc' or 'desc' ordering direction
         :returns: list of pull requests
         """
         pull_requests = self.get_all(
             repo_name, search_q=search_q, source=source, statuses=statuses,
             opened_by=opened_by, order_by=order_by, order_dir=order_dir)
 
         _filtered_pull_requests = []
         for pr in pull_requests:
             status = pr.calculated_review_status()
             if status in [ChangesetStatus.STATUS_NOT_REVIEWED,
                           ChangesetStatus.STATUS_UNDER_REVIEW]:
                 _filtered_pull_requests.append(pr)
         if length:
             return _filtered_pull_requests[offset:offset+length]
         else:
             return _filtered_pull_requests
 
     def count_awaiting_my_review(self, repo_name, search_q=None, source=False, statuses=None,
                                  opened_by=None, user_id=None):
         """
         Count the number of pull requests for a specific repository that are
         awaiting review from a specific user.
 
         :param repo_name: target or source repo
         :param search_q: filter by text
         :param source: boolean flag to specify if repo_name refers to source
         :param statuses: list of pull request statuses
         :param opened_by: author user of the pull request
         :param user_id: reviewer user of the pull request
         :returns: int number of pull requests
         """
         pull_requests = self.get_awaiting_my_review(
             repo_name, search_q=search_q, source=source, statuses=statuses,
             opened_by=opened_by, user_id=user_id)
 
         return len(pull_requests)
 
     def get_awaiting_my_review(self, repo_name, search_q=None, source=False, statuses=None,
                                opened_by=None, user_id=None, offset=0,
                                length=None, order_by=None, order_dir='desc'):
         """
         Get all pull requests for a specific repository that are awaiting
         review from a specific user.
 
         :param repo_name: target or source repo
         :param search_q: filter by text
         :param source: boolean flag to specify if repo_name refers to source
         :param statuses: list of pull request statuses
         :param opened_by: author user of the pull request
         :param user_id: reviewer user of the pull request
         :param offset: pagination offset
         :param length: length of returned list
         :param order_by: order of the returned list
         :param order_dir: 'asc' or 'desc' ordering direction
         :returns: list of pull requests
         """
         pull_requests = self.get_all(
             repo_name, search_q=search_q, source=source, statuses=statuses,
             opened_by=opened_by, order_by=order_by, order_dir=order_dir)
 
         _my = PullRequestModel().get_not_reviewed(user_id)
         my_participation = []
         for pr in pull_requests:
             if pr in _my:
                 my_participation.append(pr)
         _filtered_pull_requests = my_participation
         if length:
             return _filtered_pull_requests[offset:offset+length]
         else:
             return _filtered_pull_requests
 
     def get_not_reviewed(self, user_id):
         return [
             x.pull_request for x in PullRequestReviewers.query().filter(
                 PullRequestReviewers.user_id == user_id).all()
         ]
 
     def _prepare_participating_query(self, user_id=None, statuses=None, query='',
                                      order_by=None, order_dir='desc'):
         q = PullRequest.query()
         if user_id:
             reviewers_subquery = Session().query(
                 PullRequestReviewers.pull_request_id).filter(
                 PullRequestReviewers.user_id == user_id).subquery()
             user_filter = or_(
                 PullRequest.user_id == user_id,
                 PullRequest.pull_request_id.in_(reviewers_subquery)
             )
             q = PullRequest.query().filter(user_filter)
 
         # closed,opened
         if statuses:
             q = q.filter(PullRequest.status.in_(statuses))
 
         if query:
             like_expression = u'%{}%'.format(safe_unicode(query))
             q = q.join(User)
             q = q.filter(or_(
                 cast(PullRequest.pull_request_id, String).ilike(like_expression),
                 User.username.ilike(like_expression),
                 PullRequest.title.ilike(like_expression),
                 PullRequest.description.ilike(like_expression),
             ))
         if order_by:
             order_map = {
                 'name_raw': PullRequest.pull_request_id,
                 'title': PullRequest.title,
                 'updated_on_raw': PullRequest.updated_on,
                 'target_repo': PullRequest.target_repo_id
             }
             if order_dir == 'asc':
                 q = q.order_by(order_map[order_by].asc())
             else:
                 q = q.order_by(order_map[order_by].desc())
 
         return q
 
     def count_im_participating_in(self, user_id=None, statuses=None, query=''):
         q = self._prepare_participating_query(user_id, statuses=statuses, query=query)
         return q.count()
 
     def get_im_participating_in(
             self, user_id=None, statuses=None, query='', offset=0,
             length=None, order_by=None, order_dir='desc'):
         """
         Get all Pull requests that i'm participating in, or i have opened
         """
 
         q = self._prepare_participating_query(
             user_id, statuses=statuses, query=query, order_by=order_by,
             order_dir=order_dir)
 
         if length:
             pull_requests = q.limit(length).offset(offset).all()
         else:
             pull_requests = q.all()
 
         return pull_requests
 
     def get_versions(self, pull_request):
         """
         returns version of pull request sorted by ID descending
         """
         return PullRequestVersion.query()\
             .filter(PullRequestVersion.pull_request == pull_request)\
             .order_by(PullRequestVersion.pull_request_version_id.asc())\
             .all()
 
     def get_pr_version(self, pull_request_id, version=None):
         at_version = None
 
         if version and version == 'latest':
             pull_request_ver = PullRequest.get(pull_request_id)
             pull_request_obj = pull_request_ver
             _org_pull_request_obj = pull_request_obj
             at_version = 'latest'
         elif version:
             pull_request_ver = PullRequestVersion.get_or_404(version)
             pull_request_obj = pull_request_ver
             _org_pull_request_obj = pull_request_ver.pull_request
             at_version = pull_request_ver.pull_request_version_id
         else:
             _org_pull_request_obj = pull_request_obj = PullRequest.get_or_404(
                 pull_request_id)
 
         pull_request_display_obj = PullRequest.get_pr_display_object(
             pull_request_obj, _org_pull_request_obj)
 
         return _org_pull_request_obj, pull_request_obj, \
                pull_request_display_obj, at_version
 
     def create(self, created_by, source_repo, source_ref, target_repo,
                target_ref, revisions, reviewers, observers, title, description=None,
                common_ancestor_id=None,
                description_renderer=None,
                reviewer_data=None, translator=None, auth_user=None):
         translator = translator or get_current_request().translate
 
         created_by_user = self._get_user(created_by)
         auth_user = auth_user or created_by_user.AuthUser()
         source_repo = self._get_repo(source_repo)
         target_repo = self._get_repo(target_repo)
 
         pull_request = PullRequest()
         pull_request.source_repo = source_repo
         pull_request.source_ref = source_ref
         pull_request.target_repo = target_repo
         pull_request.target_ref = target_ref
         pull_request.revisions = revisions
         pull_request.title = title
         pull_request.description = description
         pull_request.description_renderer = description_renderer
         pull_request.author = created_by_user
         pull_request.reviewer_data = reviewer_data
         pull_request.pull_request_state = pull_request.STATE_CREATING
         pull_request.common_ancestor_id = common_ancestor_id
 
         Session().add(pull_request)
         Session().flush()
 
         reviewer_ids = set()
         # members / reviewers
         for reviewer_object in reviewers:
             user_id, reasons, mandatory, role, rules = reviewer_object
             user = self._get_user(user_id)
 
             # skip duplicates
             if user.user_id in reviewer_ids:
                 continue
 
             reviewer_ids.add(user.user_id)
 
             reviewer = PullRequestReviewers()
             reviewer.user = user
             reviewer.pull_request = pull_request
             reviewer.reasons = reasons
             reviewer.mandatory = mandatory
             reviewer.role = role
 
             # NOTE(marcink): pick only first rule for now
             rule_id = list(rules)[0] if rules else None
             rule = RepoReviewRule.get(rule_id) if rule_id else None
             if rule:
                 review_group = rule.user_group_vote_rule(user_id)
                 # we check if this particular reviewer is member of a voting group
                 if review_group:
                     # NOTE(marcink):
                     # can be that user is member of more but we pick the first same,
                     # same as default reviewers algo
                     review_group = review_group[0]
 
                     rule_data = {
                         'rule_name':
                             rule.review_rule_name,
                         'rule_user_group_entry_id':
                             review_group.repo_review_rule_users_group_id,
                         'rule_user_group_name':
                             review_group.users_group.users_group_name,
                         'rule_user_group_members':
                             [x.user.username for x in review_group.users_group.members],
                         'rule_user_group_members_id':
                             [x.user.user_id for x in review_group.users_group.members],
                     }
                     # e.g {'vote_rule': -1, 'mandatory': True}
                     rule_data.update(review_group.rule_data())
 
                     reviewer.rule_data = rule_data
 
             Session().add(reviewer)
             Session().flush()
 
         for observer_object in observers:
             user_id, reasons, mandatory, role, rules = observer_object
             user = self._get_user(user_id)
 
             # skip duplicates from reviewers
             if user.user_id in reviewer_ids:
                 continue
 
             #reviewer_ids.add(user.user_id)
 
             observer = PullRequestReviewers()
             observer.user = user
             observer.pull_request = pull_request
             observer.reasons = reasons
             observer.mandatory = mandatory
             observer.role = role
 
             # NOTE(marcink): pick only first rule for now
             rule_id = list(rules)[0] if rules else None
             rule = RepoReviewRule.get(rule_id) if rule_id else None
             if rule:
                 # TODO(marcink): do we need this for observers ??
                 pass
 
             Session().add(observer)
             Session().flush()
 
         # Set approval status to "Under Review" for all commits which are
         # part of this pull request.
         ChangesetStatusModel().set_status(
             repo=target_repo,
             status=ChangesetStatus.STATUS_UNDER_REVIEW,
             user=created_by_user,
             pull_request=pull_request
         )
         # we commit early at this point. This has to do with a fact
         # that before queries do some row-locking. And because of that
         # we need to commit and finish transaction before below validate call
         # that for large repos could be long resulting in long row locks
         Session().commit()
 
         # prepare workspace, and run initial merge simulation. Set state during that
         # operation
         pull_request = PullRequest.get(pull_request.pull_request_id)
 
         # set as merging, for merge simulation, and if finished to created so we mark
         # simulation is working fine
         with pull_request.set_state(PullRequest.STATE_MERGING,
                                     final_state=PullRequest.STATE_CREATED) as state_obj:
             MergeCheck.validate(
                 pull_request, auth_user=auth_user, translator=translator)
 
         self.notify_reviewers(pull_request, reviewer_ids, created_by_user)
         self.trigger_pull_request_hook(pull_request, created_by_user, 'create')
 
         creation_data = pull_request.get_api_data(with_merge_state=False)
         self._log_audit_action(
             'repo.pull_request.create', {'data': creation_data},
             auth_user, pull_request)
 
         return pull_request
 
     def trigger_pull_request_hook(self, pull_request, user, action, data=None):
         pull_request = self.__get_pull_request(pull_request)
         target_scm = pull_request.target_repo.scm_instance()
         if action == 'create':
             trigger_hook = hooks_utils.trigger_create_pull_request_hook
         elif action == 'merge':
             trigger_hook = hooks_utils.trigger_merge_pull_request_hook
         elif action == 'close':
             trigger_hook = hooks_utils.trigger_close_pull_request_hook
         elif action == 'review_status_change':
             trigger_hook = hooks_utils.trigger_review_pull_request_hook
         elif action == 'update':
             trigger_hook = hooks_utils.trigger_update_pull_request_hook
         elif action == 'comment':
             trigger_hook = hooks_utils.trigger_comment_pull_request_hook
         elif action == 'comment_edit':
             trigger_hook = hooks_utils.trigger_comment_pull_request_edit_hook
         else:
             return
 
         log.debug('Handling pull_request %s trigger_pull_request_hook with action %s and hook: %s',
                   pull_request, action, trigger_hook)
         trigger_hook(
             username=user.username,
             repo_name=pull_request.target_repo.repo_name,
             repo_type=target_scm.alias,
             pull_request=pull_request,
             data=data)
 
     def _get_commit_ids(self, pull_request):
         """
         Return the commit ids of the merged pull request.
 
         This method is not dealing correctly yet with the lack of autoupdates
         nor with the implicit target updates.
         For example: if a commit in the source repo is already in the target it
         will be reported anyways.
         """
         merge_rev = pull_request.merge_rev
         if merge_rev is None:
             raise ValueError('This pull request was not merged yet')
 
         commit_ids = list(pull_request.revisions)
         if merge_rev not in commit_ids:
             commit_ids.append(merge_rev)
 
         return commit_ids
 
     def merge_repo(self, pull_request, user, extras):
         log.debug("Merging pull request %s", pull_request.pull_request_id)
         extras['user_agent'] = 'internal-merge'
         merge_state = self._merge_pull_request(pull_request, user, extras)
         if merge_state.executed:
             log.debug("Merge was successful, updating the pull request comments.")
             self._comment_and_close_pr(pull_request, user, merge_state)
 
             self._log_audit_action(
                 'repo.pull_request.merge',
                 {'merge_state': merge_state.__dict__},
                 user, pull_request)
 
         else:
             log.warn("Merge failed, not updating the pull request.")
         return merge_state
 
     def _merge_pull_request(self, pull_request, user, extras, merge_msg=None):
         target_vcs = pull_request.target_repo.scm_instance()
         source_vcs = pull_request.source_repo.scm_instance()
 
         message = safe_unicode(merge_msg or vcs_settings.MERGE_MESSAGE_TMPL).format(
             pr_id=pull_request.pull_request_id,
             pr_title=pull_request.title,
             source_repo=source_vcs.name,
             source_ref_name=pull_request.source_ref_parts.name,
             target_repo=target_vcs.name,
             target_ref_name=pull_request.target_ref_parts.name,
         )
 
         workspace_id = self._workspace_id(pull_request)
         repo_id = pull_request.target_repo.repo_id
         use_rebase = self._use_rebase_for_merging(pull_request)
         close_branch = self._close_branch_before_merging(pull_request)
         user_name = self._user_name_for_merging(pull_request, user)
 
         target_ref = self._refresh_reference(
             pull_request.target_ref_parts, target_vcs)
 
         callback_daemon, extras = prepare_callback_daemon(
             extras, protocol=vcs_settings.HOOKS_PROTOCOL,
             host=vcs_settings.HOOKS_HOST,
             use_direct_calls=vcs_settings.HOOKS_DIRECT_CALLS)
 
         with callback_daemon:
             # TODO: johbo: Implement a clean way to run a config_override
             # for a single call.
             target_vcs.config.set(
                 'rhodecode', 'RC_SCM_DATA', json.dumps(extras))
 
             merge_state = target_vcs.merge(
                 repo_id, workspace_id, target_ref, source_vcs,
                 pull_request.source_ref_parts,
                 user_name=user_name, user_email=user.email,
                 message=message, use_rebase=use_rebase,
                 close_branch=close_branch)
         return merge_state
 
     def _comment_and_close_pr(self, pull_request, user, merge_state, close_msg=None):
         pull_request.merge_rev = merge_state.merge_ref.commit_id
         pull_request.updated_on = datetime.datetime.now()
         close_msg = close_msg or 'Pull request merged and closed'
 
         CommentsModel().create(
             text=safe_unicode(close_msg),
             repo=pull_request.target_repo.repo_id,
             user=user.user_id,
             pull_request=pull_request.pull_request_id,
             f_path=None,
             line_no=None,
             closing_pr=True
         )
 
         Session().add(pull_request)
         Session().flush()
         # TODO: paris: replace invalidation with less radical solution
         ScmModel().mark_for_invalidation(
             pull_request.target_repo.repo_name)
         self.trigger_pull_request_hook(pull_request, user, 'merge')
 
     def has_valid_update_type(self, pull_request):
         source_ref_type = pull_request.source_ref_parts.type
         return source_ref_type in self.REF_TYPES
 
     def get_flow_commits(self, pull_request):
 
         # source repo
         source_ref_name = pull_request.source_ref_parts.name
         source_ref_type = pull_request.source_ref_parts.type
         source_ref_id = pull_request.source_ref_parts.commit_id
         source_repo = pull_request.source_repo.scm_instance()
 
         try:
             if source_ref_type in self.REF_TYPES:
                 source_commit = source_repo.get_commit(source_ref_name)
             else:
                 source_commit = source_repo.get_commit(source_ref_id)
         except CommitDoesNotExistError:
             raise SourceRefMissing()
 
         # target repo
         target_ref_name = pull_request.target_ref_parts.name
         target_ref_type = pull_request.target_ref_parts.type
         target_ref_id = pull_request.target_ref_parts.commit_id
         target_repo = pull_request.target_repo.scm_instance()
 
         try:
             if target_ref_type in self.REF_TYPES:
                 target_commit = target_repo.get_commit(target_ref_name)
             else:
                 target_commit = target_repo.get_commit(target_ref_id)
         except CommitDoesNotExistError:
             raise TargetRefMissing()
 
         return source_commit, target_commit
 
     def update_commits(self, pull_request, updating_user):
         """
         Get the updated list of commits for the pull request
         and return the new pull request version and the list
         of commits processed by this update action
 
         updating_user is the user_object who triggered the update
         """
         pull_request = self.__get_pull_request(pull_request)
         source_ref_type = pull_request.source_ref_parts.type
         source_ref_name = pull_request.source_ref_parts.name
         source_ref_id = pull_request.source_ref_parts.commit_id
 
         target_ref_type = pull_request.target_ref_parts.type
         target_ref_name = pull_request.target_ref_parts.name
         target_ref_id = pull_request.target_ref_parts.commit_id
 
         if not self.has_valid_update_type(pull_request):
             log.debug("Skipping update of pull request %s due to ref type: %s",
                       pull_request, source_ref_type)
             return UpdateResponse(
                 executed=False,
                 reason=UpdateFailureReason.WRONG_REF_TYPE,
                 old=pull_request, new=None, common_ancestor_id=None, commit_changes=None,
                 source_changed=False, target_changed=False)
 
         try:
             source_commit, target_commit = self.get_flow_commits(pull_request)
         except SourceRefMissing:
             return UpdateResponse(
                 executed=False,
                 reason=UpdateFailureReason.MISSING_SOURCE_REF,
                 old=pull_request, new=None, common_ancestor_id=None, commit_changes=None,
                 source_changed=False, target_changed=False)
         except TargetRefMissing:
             return UpdateResponse(
                 executed=False,
                 reason=UpdateFailureReason.MISSING_TARGET_REF,
                 old=pull_request, new=None, common_ancestor_id=None, commit_changes=None,
                 source_changed=False, target_changed=False)
 
         source_changed = source_ref_id != source_commit.raw_id
         target_changed = target_ref_id != target_commit.raw_id
 
         if not (source_changed or target_changed):
             log.debug("Nothing changed in pull request %s", pull_request)
             return UpdateResponse(
                 executed=False,
                 reason=UpdateFailureReason.NO_CHANGE,
                 old=pull_request, new=None, common_ancestor_id=None, commit_changes=None,
                 source_changed=target_changed, target_changed=source_changed)
 
         change_in_found = 'target repo' if target_changed else 'source repo'
         log.debug('Updating pull request because of change in %s detected',
                   change_in_found)
 
         # Finally there is a need for an update, in case of source change
         # we create a new version, else just an update
         if source_changed:
             pull_request_version = self._create_version_from_snapshot(pull_request)
             self._link_comments_to_version(pull_request_version)
         else:
             try:
                 ver = pull_request.versions[-1]
             except IndexError:
                 ver = None
 
             pull_request.pull_request_version_id = \
                 ver.pull_request_version_id if ver else None
             pull_request_version = pull_request
 
         source_repo = pull_request.source_repo.scm_instance()
         target_repo = pull_request.target_repo.scm_instance()
 
         # re-compute commit ids
         old_commit_ids = pull_request.revisions
         pre_load = ["author", "date", "message", "branch"]
         commit_ranges = target_repo.compare(
             target_commit.raw_id, source_commit.raw_id, source_repo, merge=True,
             pre_load=pre_load)
 
         target_ref = target_commit.raw_id
         source_ref = source_commit.raw_id
         ancestor_commit_id = target_repo.get_common_ancestor(
             target_ref, source_ref, source_repo)
 
         if not ancestor_commit_id:
             raise ValueError(
                 'cannot calculate diff info without a common ancestor. '
                 'Make sure both repositories are related, and have a common forking commit.')
 
         pull_request.common_ancestor_id = ancestor_commit_id
 
         pull_request.source_ref = '%s:%s:%s' % (
             source_ref_type, source_ref_name, source_commit.raw_id)
         pull_request.target_ref = '%s:%s:%s' % (
             target_ref_type, target_ref_name, ancestor_commit_id)
 
         pull_request.revisions = [
             commit.raw_id for commit in reversed(commit_ranges)]
         pull_request.updated_on = datetime.datetime.now()
         Session().add(pull_request)
         new_commit_ids = pull_request.revisions
 
         old_diff_data, new_diff_data = self._generate_update_diffs(
             pull_request, pull_request_version)
 
         # calculate commit and file changes
         commit_changes = self._calculate_commit_id_changes(
             old_commit_ids, new_commit_ids)
         file_changes = self._calculate_file_changes(
             old_diff_data, new_diff_data)
 
         # set comments as outdated if DIFFS changed
         CommentsModel().outdate_comments(
             pull_request, old_diff_data=old_diff_data,
             new_diff_data=new_diff_data)
 
         valid_commit_changes = (commit_changes.added or commit_changes.removed)
         file_node_changes = (
             file_changes.added or file_changes.modified or file_changes.removed)
         pr_has_changes = valid_commit_changes or file_node_changes
 
         # Add an automatic comment to the pull request, in case
         # anything has changed
         if pr_has_changes:
             update_comment = CommentsModel().create(
                 text=self._render_update_message(ancestor_commit_id, commit_changes, file_changes),
                 repo=pull_request.target_repo,
                 user=pull_request.author,
                 pull_request=pull_request,
                 send_email=False, renderer=DEFAULT_COMMENTS_RENDERER)
 
             # Update status to "Under Review" for added commits
             for commit_id in commit_changes.added:
                 ChangesetStatusModel().set_status(
                     repo=pull_request.source_repo,
                     status=ChangesetStatus.STATUS_UNDER_REVIEW,
                     comment=update_comment,
                     user=pull_request.author,
                     pull_request=pull_request,
                     revision=commit_id)
 
             # send update email to users
             try:
                 self.notify_users(pull_request=pull_request, updating_user=updating_user,
                                   ancestor_commit_id=ancestor_commit_id,
                                   commit_changes=commit_changes,
                                   file_changes=file_changes)
             except Exception:
                 log.exception('Failed to send email notification to users')
 
         log.debug(
             'Updated pull request %s, added_ids: %s, common_ids: %s, '
             'removed_ids: %s', pull_request.pull_request_id,
             commit_changes.added, commit_changes.common, commit_changes.removed)
         log.debug(
             'Updated pull request with the following file changes: %s',
             file_changes)
 
         log.info(
             "Updated pull request %s from commit %s to commit %s, "
             "stored new version %s of this pull request.",
             pull_request.pull_request_id, source_ref_id,
             pull_request.source_ref_parts.commit_id,
             pull_request_version.pull_request_version_id)
         Session().commit()
         self.trigger_pull_request_hook(pull_request, pull_request.author, 'update')
 
         return UpdateResponse(
             executed=True, reason=UpdateFailureReason.NONE,
             old=pull_request, new=pull_request_version,
             common_ancestor_id=ancestor_commit_id, commit_changes=commit_changes,
             source_changed=source_changed, target_changed=target_changed)
 
     def _create_version_from_snapshot(self, pull_request):
         version = PullRequestVersion()
         version.title = pull_request.title
         version.description = pull_request.description
         version.status = pull_request.status
         version.pull_request_state = pull_request.pull_request_state
         version.created_on = datetime.datetime.now()
         version.updated_on = pull_request.updated_on
         version.user_id = pull_request.user_id
         version.source_repo = pull_request.source_repo
         version.source_ref = pull_request.source_ref
         version.target_repo = pull_request.target_repo
         version.target_ref = pull_request.target_ref
 
         version._last_merge_source_rev = pull_request._last_merge_source_rev
         version._last_merge_target_rev = pull_request._last_merge_target_rev
         version.last_merge_status = pull_request.last_merge_status
         version.last_merge_metadata = pull_request.last_merge_metadata
         version.shadow_merge_ref = pull_request.shadow_merge_ref
         version.merge_rev = pull_request.merge_rev
         version.reviewer_data = pull_request.reviewer_data
 
         version.revisions = pull_request.revisions
         version.common_ancestor_id = pull_request.common_ancestor_id
         version.pull_request = pull_request
         Session().add(version)
         Session().flush()
 
         return version
 
     def _generate_update_diffs(self, pull_request, pull_request_version):
 
         diff_context = (
             self.DIFF_CONTEXT +
             CommentsModel.needed_extra_diff_context())
         hide_whitespace_changes = False
         source_repo = pull_request_version.source_repo
         source_ref_id = pull_request_version.source_ref_parts.commit_id
         target_ref_id = pull_request_version.target_ref_parts.commit_id
         old_diff = self._get_diff_from_pr_or_version(
             source_repo, source_ref_id, target_ref_id,
             hide_whitespace_changes=hide_whitespace_changes, diff_context=diff_context)
 
         source_repo = pull_request.source_repo
         source_ref_id = pull_request.source_ref_parts.commit_id
         target_ref_id = pull_request.target_ref_parts.commit_id
 
         new_diff = self._get_diff_from_pr_or_version(
             source_repo, source_ref_id, target_ref_id,
             hide_whitespace_changes=hide_whitespace_changes, diff_context=diff_context)
 
         old_diff_data = diffs.DiffProcessor(old_diff)
         old_diff_data.prepare()
         new_diff_data = diffs.DiffProcessor(new_diff)
         new_diff_data.prepare()
 
         return old_diff_data, new_diff_data
 
     def _link_comments_to_version(self, pull_request_version):
         """
         Link all unlinked comments of this pull request to the given version.
 
         :param pull_request_version: The `PullRequestVersion` to which
             the comments shall be linked.
 
         """
         pull_request = pull_request_version.pull_request
         comments = ChangesetComment.query()\
             .filter(
                 # TODO: johbo: Should we query for the repo at all here?
                 # Pending decision on how comments of PRs are to be related
                 # to either the source repo, the target repo or no repo at all.
                 ChangesetComment.repo_id == pull_request.target_repo.repo_id,
                 ChangesetComment.pull_request == pull_request,
                 ChangesetComment.pull_request_version == None)\
             .order_by(ChangesetComment.comment_id.asc())
 
         # TODO: johbo: Find out why this breaks if it is done in a bulk
         # operation.
         for comment in comments:
             comment.pull_request_version_id = (
                 pull_request_version.pull_request_version_id)
             Session().add(comment)
 
     def _calculate_commit_id_changes(self, old_ids, new_ids):
         added = [x for x in new_ids if x not in old_ids]
         common = [x for x in new_ids if x in old_ids]
         removed = [x for x in old_ids if x not in new_ids]
         total = new_ids
         return ChangeTuple(added, common, removed, total)
 
     def _calculate_file_changes(self, old_diff_data, new_diff_data):
 
         old_files = OrderedDict()
         for diff_data in old_diff_data.parsed_diff:
             old_files[diff_data['filename']] = md5_safe(diff_data['raw_diff'])
 
         added_files = []
         modified_files = []
         removed_files = []
         for diff_data in new_diff_data.parsed_diff:
             new_filename = diff_data['filename']
             new_hash = md5_safe(diff_data['raw_diff'])
 
             old_hash = old_files.get(new_filename)
             if not old_hash:
                 # file is not present in old diff, we have to figure out from parsed diff
                 # operation ADD/REMOVE
                 operations_dict = diff_data['stats']['ops']
                 if diffs.DEL_FILENODE in operations_dict:
                     removed_files.append(new_filename)
                 else:
                     added_files.append(new_filename)
             else:
                 if new_hash != old_hash:
                     modified_files.append(new_filename)
                 # now remove a file from old, since we have seen it already
                 del old_files[new_filename]
 
         # removed files is when there are present in old, but not in NEW,
         # since we remove old files that are present in new diff, left-overs
         # if any should be the removed files
         removed_files.extend(old_files.keys())
 
         return FileChangeTuple(added_files, modified_files, removed_files)
 
     def _render_update_message(self, ancestor_commit_id, changes, file_changes):
         """
         render the message using DEFAULT_COMMENTS_RENDERER (RST renderer),
         so it's always looking the same disregarding on which default
         renderer system is using.
 
         :param ancestor_commit_id: ancestor raw_id
         :param changes: changes named tuple
         :param file_changes: file changes named tuple
 
         """
         new_status = ChangesetStatus.get_status_lbl(
             ChangesetStatus.STATUS_UNDER_REVIEW)
 
         changed_files = (
             file_changes.added + file_changes.modified + file_changes.removed)
 
         params = {
             'under_review_label': new_status,
             'added_commits': changes.added,
             'removed_commits': changes.removed,
             'changed_files': changed_files,
             'added_files': file_changes.added,
             'modified_files': file_changes.modified,
             'removed_files': file_changes.removed,
             'ancestor_commit_id': ancestor_commit_id
         }
         renderer = RstTemplateRenderer()
         return renderer.render('pull_request_update.mako', **params)
 
     def edit(self, pull_request, title, description, description_renderer, user):
         pull_request = self.__get_pull_request(pull_request)
         old_data = pull_request.get_api_data(with_merge_state=False)
         if pull_request.is_closed():
             raise ValueError('This pull request is closed')
         if title:
             pull_request.title = title
         pull_request.description = description
         pull_request.updated_on = datetime.datetime.now()
         pull_request.description_renderer = description_renderer
         Session().add(pull_request)
         self._log_audit_action(
             'repo.pull_request.edit', {'old_data': old_data},
             user, pull_request)
 
     def update_reviewers(self, pull_request, reviewer_data, user):
         """
         Update the reviewers in the pull request
 
         :param pull_request: the pr to update
         :param reviewer_data: list of tuples
             [(user, ['reason1', 'reason2'], mandatory_flag, role, [rules])]
         :param user: current use who triggers this action
         """
 
         pull_request = self.__get_pull_request(pull_request)
         if pull_request.is_closed():
             raise ValueError('This pull request is closed')
 
         reviewers = {}
         for user_id, reasons, mandatory, role, rules in reviewer_data:
             if isinstance(user_id, (int, compat.string_types)):
                 user_id = self._get_user(user_id).user_id
             reviewers[user_id] = {
                 'reasons': reasons, 'mandatory': mandatory, 'role': role}
 
         reviewers_ids = set(reviewers.keys())
         current_reviewers = PullRequestReviewers.get_pull_request_reviewers(
             pull_request.pull_request_id, role=PullRequestReviewers.ROLE_REVIEWER)
 
         current_reviewers_ids = set([x.user.user_id for x in current_reviewers])
 
         ids_to_add = reviewers_ids.difference(current_reviewers_ids)
         ids_to_remove = current_reviewers_ids.difference(reviewers_ids)
 
         log.debug("Adding %s reviewers", ids_to_add)
         log.debug("Removing %s reviewers", ids_to_remove)
         changed = False
         added_audit_reviewers = []
         removed_audit_reviewers = []
 
         for uid in ids_to_add:
             changed = True
             _usr = self._get_user(uid)
             reviewer = PullRequestReviewers()
             reviewer.user = _usr
             reviewer.pull_request = pull_request
             reviewer.reasons = reviewers[uid]['reasons']
             # NOTE(marcink): mandatory shouldn't be changed now
             # reviewer.mandatory = reviewers[uid]['reasons']
             # NOTE(marcink): role should be hardcoded, so we won't edit it.
             reviewer.role = PullRequestReviewers.ROLE_REVIEWER
             Session().add(reviewer)
             added_audit_reviewers.append(reviewer.get_dict())
 
         for uid in ids_to_remove:
             changed = True
             # NOTE(marcink): we fetch "ALL" reviewers objects using .all().
             # This is an edge case that handles previous state of having the same reviewer twice.
             # this CAN happen due to the lack of DB checks
             reviewers = PullRequestReviewers.query()\
                 .filter(PullRequestReviewers.user_id == uid,
                         PullRequestReviewers.role == PullRequestReviewers.ROLE_REVIEWER,
                         PullRequestReviewers.pull_request == pull_request)\
                 .all()
 
             for obj in reviewers:
                 added_audit_reviewers.append(obj.get_dict())
                 Session().delete(obj)
 
         if changed:
             Session().expire_all()
             pull_request.updated_on = datetime.datetime.now()
             Session().add(pull_request)
 
         # finally store audit logs
         for user_data in added_audit_reviewers:
             self._log_audit_action(
                 'repo.pull_request.reviewer.add', {'data': user_data},
                 user, pull_request)
         for user_data in removed_audit_reviewers:
             self._log_audit_action(
                 'repo.pull_request.reviewer.delete', {'old_data': user_data},
                 user, pull_request)
 
         self.notify_reviewers(pull_request, ids_to_add, user)
         return ids_to_add, ids_to_remove
 
     def update_observers(self, pull_request, observer_data, user):
         """
         Update the observers in the pull request
 
         :param pull_request: the pr to update
         :param observer_data: list of tuples
             [(user, ['reason1', 'reason2'], mandatory_flag, role, [rules])]
         :param user: current use who triggers this action
         """
         pull_request = self.__get_pull_request(pull_request)
         if pull_request.is_closed():
             raise ValueError('This pull request is closed')
 
         observers = {}
         for user_id, reasons, mandatory, role, rules in observer_data:
             if isinstance(user_id, (int, compat.string_types)):
                 user_id = self._get_user(user_id).user_id
             observers[user_id] = {
                 'reasons': reasons, 'observers': mandatory, 'role': role}
 
         observers_ids = set(observers.keys())
         current_observers = PullRequestReviewers.get_pull_request_reviewers(
             pull_request.pull_request_id, role=PullRequestReviewers.ROLE_OBSERVER)
 
         current_observers_ids = set([x.user.user_id for x in current_observers])
 
         ids_to_add = observers_ids.difference(current_observers_ids)
         ids_to_remove = current_observers_ids.difference(observers_ids)
 
         log.debug("Adding %s observer", ids_to_add)
         log.debug("Removing %s observer", ids_to_remove)
         changed = False
         added_audit_observers = []
         removed_audit_observers = []
 
         for uid in ids_to_add:
             changed = True
             _usr = self._get_user(uid)
             observer = PullRequestReviewers()
             observer.user = _usr
             observer.pull_request = pull_request
             observer.reasons = observers[uid]['reasons']
             # NOTE(marcink): mandatory shouldn't be changed now
             # observer.mandatory = observer[uid]['reasons']
 
             # NOTE(marcink): role should be hardcoded, so we won't edit it.
             observer.role = PullRequestReviewers.ROLE_OBSERVER
             Session().add(observer)
             added_audit_observers.append(observer.get_dict())
 
         for uid in ids_to_remove:
             changed = True
             # NOTE(marcink): we fetch "ALL" reviewers objects using .all().
             # This is an edge case that handles previous state of having the same reviewer twice.
             # this CAN happen due to the lack of DB checks
             observers = PullRequestReviewers.query()\
                 .filter(PullRequestReviewers.user_id == uid,
                         PullRequestReviewers.role == PullRequestReviewers.ROLE_OBSERVER,
                         PullRequestReviewers.pull_request == pull_request)\
                 .all()
 
             for obj in observers:
                 added_audit_observers.append(obj.get_dict())
                 Session().delete(obj)
 
         if changed:
             Session().expire_all()
             pull_request.updated_on = datetime.datetime.now()
             Session().add(pull_request)
 
         # finally store audit logs
         for user_data in added_audit_observers:
             self._log_audit_action(
                 'repo.pull_request.observer.add', {'data': user_data},
                 user, pull_request)
         for user_data in removed_audit_observers:
             self._log_audit_action(
                 'repo.pull_request.observer.delete', {'old_data': user_data},
                 user, pull_request)
 
         self.notify_observers(pull_request, ids_to_add, user)
         return ids_to_add, ids_to_remove
 
     def get_url(self, pull_request, request=None, permalink=False):
         if not request:
             request = get_current_request()
 
         if permalink:
             return request.route_url(
                 'pull_requests_global',
                 pull_request_id=pull_request.pull_request_id,)
         else:
             return request.route_url('pullrequest_show',
                 repo_name=safe_str(pull_request.target_repo.repo_name),
                 pull_request_id=pull_request.pull_request_id,)
 
     def get_shadow_clone_url(self, pull_request, request=None):
         """
         Returns qualified url pointing to the shadow repository. If this pull
         request is closed there is no shadow repository and ``None`` will be
         returned.
         """
         if pull_request.is_closed():
             return None
         else:
             pr_url = urllib.unquote(self.get_url(pull_request, request=request))
             return safe_unicode('{pr_url}/repository'.format(pr_url=pr_url))
 
     def _notify_reviewers(self, pull_request, user_ids, role, user):
         # notification to reviewers/observers
         if not user_ids:
             return
 
         log.debug('Notify following %s users about pull-request %s', role, user_ids)
 
         pull_request_obj = pull_request
         # get the current participants of this pull request
         recipients = user_ids
         notification_type = EmailNotificationModel.TYPE_PULL_REQUEST
 
         pr_source_repo = pull_request_obj.source_repo
         pr_target_repo = pull_request_obj.target_repo
 
         pr_url = h.route_url('pullrequest_show',
                              repo_name=pr_target_repo.repo_name,
                              pull_request_id=pull_request_obj.pull_request_id,)
 
         # set some variables for email notification
         pr_target_repo_url = h.route_url(
             'repo_summary', repo_name=pr_target_repo.repo_name)
 
         pr_source_repo_url = h.route_url(
             'repo_summary', repo_name=pr_source_repo.repo_name)
 
         # pull request specifics
         pull_request_commits = [
             (x.raw_id, x.message)
             for x in map(pr_source_repo.get_commit, pull_request.revisions)]
 
         current_rhodecode_user = user
         kwargs = {
             'user': current_rhodecode_user,
             'pull_request_author': pull_request.author,
             'pull_request': pull_request_obj,
             'pull_request_commits': pull_request_commits,
 
             'pull_request_target_repo': pr_target_repo,
             'pull_request_target_repo_url': pr_target_repo_url,
 
             'pull_request_source_repo': pr_source_repo,
             'pull_request_source_repo_url': pr_source_repo_url,
 
             'pull_request_url': pr_url,
             'thread_ids': [pr_url],
             'user_role': role
         }
 
-        # pre-generate the subject for notification itself
-        (subject, _e, body_plaintext) = EmailNotificationModel().render_email(
-            notification_type, **kwargs)
-
         # create notification objects, and emails
         NotificationModel().create(
             created_by=current_rhodecode_user,
-            notification_subject=subject,
-            notification_body=body_plaintext,
+            notification_subject='',  # Filled in based on the notification_type
+            notification_body='',  # Filled in based on the notification_type
             notification_type=notification_type,
             recipients=recipients,
             email_kwargs=kwargs,
         )
 
     def notify_reviewers(self, pull_request, reviewers_ids, user):
         return self._notify_reviewers(pull_request, reviewers_ids,
                                       PullRequestReviewers.ROLE_REVIEWER, user)
 
     def notify_observers(self, pull_request, observers_ids, user):
         return self._notify_reviewers(pull_request, observers_ids,
                                       PullRequestReviewers.ROLE_OBSERVER, user)
 
     def notify_users(self, pull_request, updating_user, ancestor_commit_id,
                      commit_changes, file_changes):
 
         updating_user_id = updating_user.user_id
         reviewers = set([x.user.user_id for x in pull_request.get_pull_request_reviewers()])
         # NOTE(marcink): send notification to all other users except to
         # person who updated the PR
         recipients = reviewers.difference(set([updating_user_id]))
 
         log.debug('Notify following recipients about pull-request update %s', recipients)
 
         pull_request_obj = pull_request
 
         # send email about the update
         changed_files = (
                 file_changes.added + file_changes.modified + file_changes.removed)
 
         pr_source_repo = pull_request_obj.source_repo
         pr_target_repo = pull_request_obj.target_repo
 
         pr_url = h.route_url('pullrequest_show',
                              repo_name=pr_target_repo.repo_name,
                              pull_request_id=pull_request_obj.pull_request_id,)
 
         # set some variables for email notification
         pr_target_repo_url = h.route_url(
             'repo_summary', repo_name=pr_target_repo.repo_name)
 
         pr_source_repo_url = h.route_url(
             'repo_summary', repo_name=pr_source_repo.repo_name)
 
         email_kwargs = {
             'date': datetime.datetime.now(),
             'updating_user': updating_user,
 
             'pull_request': pull_request_obj,
 
             'pull_request_target_repo': pr_target_repo,
             'pull_request_target_repo_url': pr_target_repo_url,
 
             'pull_request_source_repo': pr_source_repo,
             'pull_request_source_repo_url': pr_source_repo_url,
 
             'pull_request_url': pr_url,
 
             'ancestor_commit_id': ancestor_commit_id,
             'added_commits': commit_changes.added,
             'removed_commits': commit_changes.removed,
             'changed_files': changed_files,
             'added_files': file_changes.added,
             'modified_files': file_changes.modified,
             'removed_files': file_changes.removed,
             'thread_ids': [pr_url],
         }
 
-        (subject, _e, body_plaintext) = EmailNotificationModel().render_email(
-            EmailNotificationModel.TYPE_PULL_REQUEST_UPDATE, **email_kwargs)
-
         # create notification objects, and emails
         NotificationModel().create(
             created_by=updating_user,
-            notification_subject=subject,
-            notification_body=body_plaintext,
+            notification_subject='',  # Filled in based on the notification_type
+            notification_body='',  # Filled in based on the notification_type
             notification_type=EmailNotificationModel.TYPE_PULL_REQUEST_UPDATE,
             recipients=recipients,
             email_kwargs=email_kwargs,
         )
 
     def delete(self, pull_request, user=None):
         if not user:
             user = getattr(get_current_rhodecode_user(), 'username', None)
 
         pull_request = self.__get_pull_request(pull_request)
         old_data = pull_request.get_api_data(with_merge_state=False)
         self._cleanup_merge_workspace(pull_request)
         self._log_audit_action(
             'repo.pull_request.delete', {'old_data': old_data},
             user, pull_request)
         Session().delete(pull_request)
 
     def close_pull_request(self, pull_request, user):
         pull_request = self.__get_pull_request(pull_request)
         self._cleanup_merge_workspace(pull_request)
         pull_request.status = PullRequest.STATUS_CLOSED
         pull_request.updated_on = datetime.datetime.now()
         Session().add(pull_request)
         self.trigger_pull_request_hook(pull_request, pull_request.author, 'close')
 
         pr_data = pull_request.get_api_data(with_merge_state=False)
         self._log_audit_action(
             'repo.pull_request.close', {'data': pr_data}, user, pull_request)
 
     def close_pull_request_with_comment(
             self, pull_request, user, repo, message=None, auth_user=None):
 
         pull_request_review_status = pull_request.calculated_review_status()
 
         if pull_request_review_status == ChangesetStatus.STATUS_APPROVED:
             # approved only if we have voting consent
             status = ChangesetStatus.STATUS_APPROVED
         else:
             status = ChangesetStatus.STATUS_REJECTED
         status_lbl = ChangesetStatus.get_status_lbl(status)
 
         default_message = (
             'Closing with status change {transition_icon} {status}.'
         ).format(transition_icon='>', status=status_lbl)
         text = message or default_message
 
         # create a comment, and link it to new status
         comment = CommentsModel().create(
             text=text,
             repo=repo.repo_id,
             user=user.user_id,
             pull_request=pull_request.pull_request_id,
             status_change=status_lbl,
             status_change_type=status,
             closing_pr=True,
             auth_user=auth_user,
         )
 
         # calculate old status before we change it
         old_calculated_status = pull_request.calculated_review_status()
         ChangesetStatusModel().set_status(
             repo.repo_id,
             status,
             user.user_id,
             comment=comment,
             pull_request=pull_request.pull_request_id
         )
 
         Session().flush()
 
         self.trigger_pull_request_hook(pull_request, user, 'comment',
                                        data={'comment': comment})
 
         # we now calculate the status of pull request again, and based on that
         # calculation trigger status change. This might happen in cases
         # that non-reviewer admin closes a pr, which means his vote doesn't
         # change the status, while if he's a reviewer this might change it.
         calculated_status = pull_request.calculated_review_status()
         if old_calculated_status != calculated_status:
             self.trigger_pull_request_hook(pull_request, user, 'review_status_change',
                                            data={'status': calculated_status})
 
         # finally close the PR
         PullRequestModel().close_pull_request(pull_request.pull_request_id, user)
 
         return comment, status
 
     def merge_status(self, pull_request, translator=None, force_shadow_repo_refresh=False):
         _ = translator or get_current_request().translate
 
         if not self._is_merge_enabled(pull_request):
             return None, False, _('Server-side pull request merging is disabled.')
 
         if pull_request.is_closed():
             return None, False, _('This pull request is closed.')
 
         merge_possible, msg = self._check_repo_requirements(
             target=pull_request.target_repo, source=pull_request.source_repo,
             translator=_)
         if not merge_possible:
             return None, merge_possible, msg
 
         try:
             merge_response = self._try_merge(
                 pull_request, force_shadow_repo_refresh=force_shadow_repo_refresh)
             log.debug("Merge response: %s", merge_response)
             return merge_response, merge_response.possible, merge_response.merge_status_message
         except NotImplementedError:
             return None, False, _('Pull request merging is not supported.')
 
     def _check_repo_requirements(self, target, source, translator):
         """
         Check if `target` and `source` have compatible requirements.
 
         Currently this is just checking for largefiles.
         """
         _ = translator
         target_has_largefiles = self._has_largefiles(target)
         source_has_largefiles = self._has_largefiles(source)
         merge_possible = True
         message = u''
 
         if target_has_largefiles != source_has_largefiles:
             merge_possible = False
             if source_has_largefiles:
                 message = _(
                     'Target repository large files support is disabled.')
             else:
                 message = _(
                     'Source repository large files support is disabled.')
 
         return merge_possible, message
 
     def _has_largefiles(self, repo):
         largefiles_ui = VcsSettingsModel(repo=repo).get_ui_settings(
             'extensions', 'largefiles')
         return largefiles_ui and largefiles_ui[0].active
 
     def _try_merge(self, pull_request, force_shadow_repo_refresh=False):
         """
         Try to merge the pull request and return the merge status.
         """
         log.debug(
             "Trying out if the pull request %s can be merged. Force_refresh=%s",
             pull_request.pull_request_id, force_shadow_repo_refresh)
         target_vcs = pull_request.target_repo.scm_instance()
         # Refresh the target reference.
         try:
             target_ref = self._refresh_reference(
                 pull_request.target_ref_parts, target_vcs)
         except CommitDoesNotExistError:
             merge_state = MergeResponse(
                 False, False, None, MergeFailureReason.MISSING_TARGET_REF,
                 metadata={'target_ref': pull_request.target_ref_parts})
             return merge_state
 
         target_locked = pull_request.target_repo.locked
         if target_locked and target_locked[0]:
             locked_by = 'user:{}'.format(target_locked[0])
             log.debug("The target repository is locked by %s.", locked_by)
             merge_state = MergeResponse(
                 False, False, None, MergeFailureReason.TARGET_IS_LOCKED,
                 metadata={'locked_by': locked_by})
         elif force_shadow_repo_refresh or self._needs_merge_state_refresh(
                 pull_request, target_ref):
             log.debug("Refreshing the merge status of the repository.")
             merge_state = self._refresh_merge_state(
                 pull_request, target_vcs, target_ref)
         else:
             possible = pull_request.last_merge_status == MergeFailureReason.NONE
             metadata = {
                 'unresolved_files': '',
                 'target_ref': pull_request.target_ref_parts,
                 'source_ref': pull_request.source_ref_parts,
             }
             if pull_request.last_merge_metadata:
                 metadata.update(pull_request.last_merge_metadata_parsed)
 
             if not possible and target_ref.type == 'branch':
                 # NOTE(marcink): case for mercurial multiple heads on branch
                 heads = target_vcs._heads(target_ref.name)
                 if len(heads) != 1:
                     heads = '\n,'.join(target_vcs._heads(target_ref.name))
                     metadata.update({
                         'heads': heads
                     })
 
             merge_state = MergeResponse(
                 possible, False, None, pull_request.last_merge_status, metadata=metadata)
 
         return merge_state
 
     def _refresh_reference(self, reference, vcs_repository):
         if reference.type in self.UPDATABLE_REF_TYPES:
             name_or_id = reference.name
         else:
             name_or_id = reference.commit_id
 
         refreshed_commit = vcs_repository.get_commit(name_or_id)
         refreshed_reference = Reference(
             reference.type, reference.name, refreshed_commit.raw_id)
         return refreshed_reference
 
     def _needs_merge_state_refresh(self, pull_request, target_reference):
         return not(
             pull_request.revisions and
             pull_request.revisions[0] == pull_request._last_merge_source_rev and
             target_reference.commit_id == pull_request._last_merge_target_rev)
 
     def _refresh_merge_state(self, pull_request, target_vcs, target_reference):
         workspace_id = self._workspace_id(pull_request)
         source_vcs = pull_request.source_repo.scm_instance()
         repo_id = pull_request.target_repo.repo_id
         use_rebase = self._use_rebase_for_merging(pull_request)
         close_branch = self._close_branch_before_merging(pull_request)
         merge_state = target_vcs.merge(
             repo_id, workspace_id,
             target_reference, source_vcs, pull_request.source_ref_parts,
             dry_run=True, use_rebase=use_rebase,
             close_branch=close_branch)
 
         # Do not store the response if there was an unknown error.
         if merge_state.failure_reason != MergeFailureReason.UNKNOWN:
             pull_request._last_merge_source_rev = \
                 pull_request.source_ref_parts.commit_id
             pull_request._last_merge_target_rev = target_reference.commit_id
             pull_request.last_merge_status = merge_state.failure_reason
             pull_request.last_merge_metadata = merge_state.metadata
 
             pull_request.shadow_merge_ref = merge_state.merge_ref
             Session().add(pull_request)
             Session().commit()
 
         return merge_state
 
     def _workspace_id(self, pull_request):
         workspace_id = 'pr-%s' % pull_request.pull_request_id
         return workspace_id
 
     def generate_repo_data(self, repo, commit_id=None, branch=None,
                            bookmark=None, translator=None):
         from rhodecode.model.repo import RepoModel
 
         all_refs, selected_ref = \
             self._get_repo_pullrequest_sources(
                 repo.scm_instance(), commit_id=commit_id,
                 branch=branch, bookmark=bookmark, translator=translator)
 
         refs_select2 = []
         for element in all_refs:
             children = [{'id': x[0], 'text': x[1]} for x in element[0]]
             refs_select2.append({'text': element[1], 'children': children})
 
         return {
             'user': {
                 'user_id': repo.user.user_id,
                 'username': repo.user.username,
                 'firstname': repo.user.first_name,
                 'lastname': repo.user.last_name,
                 'gravatar_link': h.gravatar_url(repo.user.email, 14),
             },
             'name': repo.repo_name,
             'link': RepoModel().get_url(repo),
             'description': h.chop_at_smart(repo.description_safe, '\n'),
             'refs': {
                 'all_refs': all_refs,
                 'selected_ref': selected_ref,
                 'select2_refs': refs_select2
             }
         }
 
     def generate_pullrequest_title(self, source, source_ref, target):
         return u'{source}#{at_ref} to {target}'.format(
             source=source,
             at_ref=source_ref,
             target=target,
         )
 
     def _cleanup_merge_workspace(self, pull_request):
         # Merging related cleanup
         repo_id = pull_request.target_repo.repo_id
         target_scm = pull_request.target_repo.scm_instance()
         workspace_id = self._workspace_id(pull_request)
 
         try:
             target_scm.cleanup_merge_workspace(repo_id, workspace_id)
         except NotImplementedError:
             pass
 
     def _get_repo_pullrequest_sources(
             self, repo, commit_id=None, branch=None, bookmark=None,
             translator=None):
         """
         Return a structure with repo's interesting commits, suitable for
         the selectors in pullrequest controller
 
         :param commit_id: a commit that must be in the list somehow
             and selected by default
         :param branch: a branch that must be in the list and selected
             by default - even if closed
         :param bookmark: a bookmark that must be in the list and selected
         """
         _ = translator or get_current_request().translate
 
         commit_id = safe_str(commit_id) if commit_id else None
         branch = safe_unicode(branch) if branch else None
         bookmark = safe_unicode(bookmark) if bookmark else None
 
         selected = None
 
         # order matters: first source that has commit_id in it will be selected
         sources = []
         sources.append(('book', repo.bookmarks.items(), _('Bookmarks'), bookmark))
         sources.append(('branch', repo.branches.items(), _('Branches'), branch))
 
         if commit_id:
             ref_commit = (h.short_id(commit_id), commit_id)
             sources.append(('rev', [ref_commit], _('Commit IDs'), commit_id))
 
         sources.append(
             ('branch', repo.branches_closed.items(), _('Closed Branches'), branch),
         )
 
         groups = []
 
         for group_key, ref_list, group_name, match in sources:
             group_refs = []
             for ref_name, ref_id in ref_list:
                 ref_key = u'{}:{}:{}'.format(group_key, ref_name, ref_id)
                 group_refs.append((ref_key, ref_name))
 
                 if not selected:
                     if set([commit_id, match]) & set([ref_id, ref_name]):
                         selected = ref_key
 
             if group_refs:
                 groups.append((group_refs, group_name))
 
         if not selected:
             ref = commit_id or branch or bookmark
             if ref:
                 raise CommitDoesNotExistError(
                     u'No commit refs could be found matching: {}'.format(ref))
             elif repo.DEFAULT_BRANCH_NAME in repo.branches:
                 selected = u'branch:{}:{}'.format(
                     safe_unicode(repo.DEFAULT_BRANCH_NAME),
                     safe_unicode(repo.branches[repo.DEFAULT_BRANCH_NAME])
                 )
             elif repo.commit_ids:
                 # make the user select in this case
                 selected = None
             else:
                 raise EmptyRepositoryError()
         return groups, selected
 
     def get_diff(self, source_repo, source_ref_id, target_ref_id,
                  hide_whitespace_changes, diff_context):
 
         return self._get_diff_from_pr_or_version(
             source_repo, source_ref_id, target_ref_id,
             hide_whitespace_changes=hide_whitespace_changes, diff_context=diff_context)
 
     def _get_diff_from_pr_or_version(
             self, source_repo, source_ref_id, target_ref_id,
             hide_whitespace_changes, diff_context):
 
         target_commit = source_repo.get_commit(
             commit_id=safe_str(target_ref_id))
         source_commit = source_repo.get_commit(
             commit_id=safe_str(source_ref_id), maybe_unreachable=True)
         if isinstance(source_repo, Repository):
             vcs_repo = source_repo.scm_instance()
         else:
             vcs_repo = source_repo
 
         # TODO: johbo: In the context of an update, we cannot reach
         # the old commit anymore with our normal mechanisms. It needs
         # some sort of special support in the vcs layer to avoid this
         # workaround.
         if (source_commit.raw_id == vcs_repo.EMPTY_COMMIT_ID and
                 vcs_repo.alias == 'git'):
             source_commit.raw_id = safe_str(source_ref_id)
 
         log.debug('calculating diff between '
                   'source_ref:%s and target_ref:%s for repo `%s`',
                   target_ref_id, source_ref_id,
                   safe_unicode(vcs_repo.path))
 
         vcs_diff = vcs_repo.get_diff(
             commit1=target_commit, commit2=source_commit,
             ignore_whitespace=hide_whitespace_changes, context=diff_context)
         return vcs_diff
 
     def _is_merge_enabled(self, pull_request):
         return self._get_general_setting(
             pull_request, 'rhodecode_pr_merge_enabled')
 
     def _use_rebase_for_merging(self, pull_request):
         repo_type = pull_request.target_repo.repo_type
         if repo_type == 'hg':
             return self._get_general_setting(
                 pull_request, 'rhodecode_hg_use_rebase_for_merging')
         elif repo_type == 'git':
             return self._get_general_setting(
                 pull_request, 'rhodecode_git_use_rebase_for_merging')
 
         return False
 
     def _user_name_for_merging(self, pull_request, user):
         env_user_name_attr = os.environ.get('RC_MERGE_USER_NAME_ATTR', '')
         if env_user_name_attr and hasattr(user, env_user_name_attr):
             user_name_attr = env_user_name_attr
         else:
             user_name_attr = 'short_contact'
 
         user_name = getattr(user, user_name_attr)
         return user_name
 
     def _close_branch_before_merging(self, pull_request):
         repo_type = pull_request.target_repo.repo_type
         if repo_type == 'hg':
             return self._get_general_setting(
                 pull_request, 'rhodecode_hg_close_branch_before_merging')
         elif repo_type == 'git':
             return self._get_general_setting(
                 pull_request, 'rhodecode_git_close_branch_before_merging')
 
         return False
 
     def _get_general_setting(self, pull_request, settings_key, default=False):
         settings_model = VcsSettingsModel(repo=pull_request.target_repo)
         settings = settings_model.get_general_settings()
         return settings.get(settings_key, default)
 
     def _log_audit_action(self, action, action_data, user, pull_request):
         audit_logger.store(
             action=action,
             action_data=action_data,
             user=user,
             repo=pull_request.target_repo)
 
     def get_reviewer_functions(self):
         """
         Fetches functions for validation and fetching default reviewers.
         If available we use the EE package, else we fallback to CE
         package functions
         """
         try:
             from rc_reviewers.utils import get_default_reviewers_data
             from rc_reviewers.utils import validate_default_reviewers
             from rc_reviewers.utils import validate_observers
         except ImportError:
             from rhodecode.apps.repository.utils import get_default_reviewers_data
             from rhodecode.apps.repository.utils import validate_default_reviewers
             from rhodecode.apps.repository.utils import validate_observers
 
         return get_default_reviewers_data, validate_default_reviewers, validate_observers
 
 
 class MergeCheck(object):
     """
     Perform Merge Checks and returns a check object which stores information
     about merge errors, and merge conditions
     """
     TODO_CHECK = 'todo'
     PERM_CHECK = 'perm'
     REVIEW_CHECK = 'review'
     MERGE_CHECK = 'merge'
     WIP_CHECK = 'wip'
 
     def __init__(self):
         self.review_status = None
         self.merge_possible = None
         self.merge_msg = ''
         self.merge_response = None
         self.failed = None
         self.errors = []
         self.error_details = OrderedDict()
         self.source_commit = AttributeDict()
         self.target_commit = AttributeDict()
 
     def __repr__(self):
         return '<MergeCheck(possible:{}, failed:{}, errors:{})>'.format(
             self.merge_possible, self.failed, self.errors)
 
     def push_error(self, error_type, message, error_key, details):
         self.failed = True
         self.errors.append([error_type, message])
         self.error_details[error_key] = dict(
             details=details,
             error_type=error_type,
             message=message
         )
 
     @classmethod
     def validate(cls, pull_request, auth_user, translator, fail_early=False,
                  force_shadow_repo_refresh=False):
         _ = translator
         merge_check = cls()
 
         # title has WIP:
         if pull_request.work_in_progress:
             log.debug("MergeCheck: cannot merge, title has wip: marker.")
 
             msg = _('WIP marker in title prevents from accidental merge.')
             merge_check.push_error('error', msg, cls.WIP_CHECK, pull_request.title)
             if fail_early:
                 return merge_check
 
         # permissions to merge
         user_allowed_to_merge = PullRequestModel().check_user_merge(pull_request, auth_user)
         if not user_allowed_to_merge:
             log.debug("MergeCheck: cannot merge, approval is pending.")
 
             msg = _('User `{}` not allowed to perform merge.').format(auth_user.username)
             merge_check.push_error('error', msg, cls.PERM_CHECK, auth_user.username)
             if fail_early:
                 return merge_check
 
         # permission to merge into the target branch
         target_commit_id = pull_request.target_ref_parts.commit_id
         if pull_request.target_ref_parts.type == 'branch':
             branch_name = pull_request.target_ref_parts.name
         else:
             # for mercurial we can always figure out the branch from the commit
             # in case of bookmark
             target_commit = pull_request.target_repo.get_commit(target_commit_id)
             branch_name = target_commit.branch
 
         rule, branch_perm = auth_user.get_rule_and_branch_permission(
             pull_request.target_repo.repo_name, branch_name)
         if branch_perm and branch_perm == 'branch.none':
             msg = _('Target branch `{}` changes rejected by rule {}.').format(
                 branch_name, rule)
             merge_check.push_error('error', msg, cls.PERM_CHECK, auth_user.username)
             if fail_early:
                 return merge_check
 
         # review status, must be always present
         review_status = pull_request.calculated_review_status()
         merge_check.review_status = review_status
 
         status_approved = review_status == ChangesetStatus.STATUS_APPROVED
         if not status_approved:
             log.debug("MergeCheck: cannot merge, approval is pending.")
 
             msg = _('Pull request reviewer approval is pending.')
 
             merge_check.push_error('warning', msg, cls.REVIEW_CHECK, review_status)
 
             if fail_early:
                 return merge_check
 
         # left over TODOs
         todos = CommentsModel().get_pull_request_unresolved_todos(pull_request)
         if todos:
             log.debug("MergeCheck: cannot merge, {} "
                       "unresolved TODOs left.".format(len(todos)))
 
             if len(todos) == 1:
                 msg = _('Cannot merge, {} TODO still not resolved.').format(
                     len(todos))
             else:
                 msg = _('Cannot merge, {} TODOs still not resolved.').format(
                     len(todos))
 
             merge_check.push_error('warning', msg, cls.TODO_CHECK, todos)
 
             if fail_early:
                 return merge_check
 
         # merge possible, here is the filesystem simulation + shadow repo
         merge_response, merge_status, msg = PullRequestModel().merge_status(
             pull_request, translator=translator,
             force_shadow_repo_refresh=force_shadow_repo_refresh)
 
         merge_check.merge_possible = merge_status
         merge_check.merge_msg = msg
         merge_check.merge_response = merge_response
 
         source_ref_id = pull_request.source_ref_parts.commit_id
         target_ref_id = pull_request.target_ref_parts.commit_id
 
         try:
             source_commit, target_commit = PullRequestModel().get_flow_commits(pull_request)
             merge_check.source_commit.changed = source_ref_id != source_commit.raw_id
             merge_check.source_commit.ref_spec = pull_request.source_ref_parts
             merge_check.source_commit.current_raw_id = source_commit.raw_id
             merge_check.source_commit.previous_raw_id = source_ref_id
 
             merge_check.target_commit.changed = target_ref_id != target_commit.raw_id
             merge_check.target_commit.ref_spec = pull_request.target_ref_parts
             merge_check.target_commit.current_raw_id = target_commit.raw_id
             merge_check.target_commit.previous_raw_id = target_ref_id
         except (SourceRefMissing, TargetRefMissing):
             pass
 
         if not merge_status:
             log.debug("MergeCheck: cannot merge, pull request merge not possible.")
             merge_check.push_error('warning', msg, cls.MERGE_CHECK, None)
 
             if fail_early:
                 return merge_check
 
         log.debug('MergeCheck: is failed: %s', merge_check.failed)
         return merge_check
 
     @classmethod
     def get_merge_conditions(cls, pull_request, translator):
         _ = translator
         merge_details = {}
 
         model = PullRequestModel()
         use_rebase = model._use_rebase_for_merging(pull_request)
 
         if use_rebase:
             merge_details['merge_strategy'] = dict(
                 details={},
                 message=_('Merge strategy: rebase')
             )
         else:
             merge_details['merge_strategy'] = dict(
                 details={},
                 message=_('Merge strategy: explicit merge commit')
             )
 
         close_branch = model._close_branch_before_merging(pull_request)
         if close_branch:
             repo_type = pull_request.target_repo.repo_type
             close_msg = ''
             if repo_type == 'hg':
                 close_msg = _('Source branch will be closed before the merge.')
             elif repo_type == 'git':
                 close_msg = _('Source branch will be deleted after the merge.')
 
             merge_details['close_branch'] = dict(
                 details={},
                 message=close_msg
             )
 
         return merge_details
 
 
 ChangeTuple = collections.namedtuple(
     'ChangeTuple', ['added', 'common', 'removed', 'total'])
 
 FileChangeTuple = collections.namedtuple(
     'FileChangeTuple', ['added', 'modified', 'removed'])

rhodecode/model/user.py

@@ -1,1050 +1,1047 b''
 # -*- coding: utf-8 -*-
 
 # Copyright (C) 2010-2020 RhodeCode GmbH
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License, version 3
 # (only), as published by the Free Software Foundation.
 #
 # 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 Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 # This program is dual-licensed. If you wish to learn more about the
 # RhodeCode Enterprise Edition, including its added features, Support services,
 # and proprietary license terms, please see https://rhodecode.com/licenses/
 
 """
 users model for RhodeCode
 """
 
 import logging
 import traceback
 import datetime
 import ipaddress
 
 from pyramid.threadlocal import get_current_request
 from sqlalchemy.exc import DatabaseError
 
 from rhodecode import events
 from rhodecode.lib.user_log_filter import user_log_filter
 from rhodecode.lib.utils2 import (
     safe_unicode, get_current_rhodecode_user, action_logger_generic,
     AttributeDict, str2bool)
 from rhodecode.lib.exceptions import (
     DefaultUserException, UserOwnsReposException, UserOwnsRepoGroupsException,
     UserOwnsUserGroupsException, NotAllowedToCreateUserError,
     UserOwnsPullRequestsException, UserOwnsArtifactsException)
 from rhodecode.lib.caching_query import FromCache
 from rhodecode.model import BaseModel
 from rhodecode.model.db import (
     _hash_key, func, true, false, or_, joinedload, User, UserToPerm,
     UserEmailMap, UserIpMap, UserLog)
 from rhodecode.model.meta import Session
 from rhodecode.model.auth_token import AuthTokenModel
 from rhodecode.model.repo_group import RepoGroupModel
 
 log = logging.getLogger(__name__)
 
 
 class UserModel(BaseModel):
     cls = User
 
     def get(self, user_id, cache=False):
         user = self.sa.query(User)
         if cache:
             user = user.options(
                 FromCache("sql_cache_short", "get_user_%s" % user_id))
         return user.get(user_id)
 
     def get_user(self, user):
         return self._get_user(user)
 
     def _serialize_user(self, user):
         import rhodecode.lib.helpers as h
 
         return {
             'id': user.user_id,
             'first_name': user.first_name,
             'last_name': user.last_name,
             'username': user.username,
             'email': user.email,
             'icon_link': h.gravatar_url(user.email, 30),
             'profile_link':  h.link_to_user(user),
             'value_display': h.escape(h.person(user)),
             'value': user.username,
             'value_type': 'user',
             'active': user.active,
         }
 
     def get_users(self, name_contains=None, limit=20, only_active=True):
 
         query = self.sa.query(User)
         if only_active:
             query = query.filter(User.active == true())
 
         if name_contains:
             ilike_expression = u'%{}%'.format(safe_unicode(name_contains))
             query = query.filter(
                 or_(
                     User.name.ilike(ilike_expression),
                     User.lastname.ilike(ilike_expression),
                     User.username.ilike(ilike_expression)
                 )
             )
             # sort by len to have top most matches first
             query = query.order_by(func.length(User.username))\
                 .order_by(User.username)
             query = query.limit(limit)
 
         users = query.all()
 
         _users = [
             self._serialize_user(user) for user in users
         ]
         return _users
 
     def get_by_username(self, username, cache=False, case_insensitive=False):
 
         if case_insensitive:
             user = self.sa.query(User).filter(User.username.ilike(username))
         else:
             user = self.sa.query(User)\
                 .filter(User.username == username)
         if cache:
             name_key = _hash_key(username)
             user = user.options(
                 FromCache("sql_cache_short", "get_user_%s" % name_key))
         return user.scalar()
 
     def get_by_email(self, email, cache=False, case_insensitive=False):
         return User.get_by_email(email, case_insensitive, cache)
 
     def get_by_auth_token(self, auth_token, cache=False):
         return User.get_by_auth_token(auth_token, cache)
 
     def get_active_user_count(self, cache=False):
         qry = User.query().filter(
             User.active == true()).filter(
                 User.username != User.DEFAULT_USER)
         if cache:
             qry = qry.options(
                 FromCache("sql_cache_short", "get_active_users"))
         return qry.count()
 
     def create(self, form_data, cur_user=None):
         if not cur_user:
             cur_user = getattr(get_current_rhodecode_user(), 'username', None)
 
         user_data = {
             'username': form_data['username'],
             'password': form_data['password'],
             'email': form_data['email'],
             'firstname': form_data['firstname'],
             'lastname': form_data['lastname'],
             'active': form_data['active'],
             'extern_type': form_data['extern_type'],
             'extern_name': form_data['extern_name'],
             'admin': False,
             'cur_user': cur_user
         }
 
         if 'create_repo_group' in form_data:
             user_data['create_repo_group'] = str2bool(
                 form_data.get('create_repo_group'))
 
         try:
             if form_data.get('password_change'):
                 user_data['force_password_change'] = True
             return UserModel().create_or_update(**user_data)
         except Exception:
             log.error(traceback.format_exc())
             raise
 
     def update_user(self, user, skip_attrs=None, **kwargs):
         from rhodecode.lib.auth import get_crypt_password
 
         user = self._get_user(user)
         if user.username == User.DEFAULT_USER:
             raise DefaultUserException(
                 "You can't edit this user (`%(username)s`) since it's "
                 "crucial for entire application" % {
                 'username': user.username})
 
         # first store only defaults
         user_attrs = {
             'updating_user_id': user.user_id,
             'username': user.username,
             'password': user.password,
             'email': user.email,
             'firstname': user.name,
             'lastname': user.lastname,
             'description': user.description,
             'active': user.active,
             'admin': user.admin,
             'extern_name': user.extern_name,
             'extern_type': user.extern_type,
             'language': user.user_data.get('language')
         }
 
         # in case there's new_password, that comes from form, use it to
         # store password
         if kwargs.get('new_password'):
             kwargs['password'] = kwargs['new_password']
 
         # cleanups, my_account password change form
         kwargs.pop('current_password', None)
         kwargs.pop('new_password', None)
 
         # cleanups, user edit password change form
         kwargs.pop('password_confirmation', None)
         kwargs.pop('password_change', None)
 
         # create repo group on user creation
         kwargs.pop('create_repo_group', None)
 
         # legacy forms send name, which is the firstname
         firstname = kwargs.pop('name', None)
         if firstname:
             kwargs['firstname'] = firstname
 
         for k, v in kwargs.items():
             # skip if we don't want to update this
             if skip_attrs and k in skip_attrs:
                 continue
 
             user_attrs[k] = v
 
         try:
             return self.create_or_update(**user_attrs)
         except Exception:
             log.error(traceback.format_exc())
             raise
 
     def create_or_update(
             self, username, password, email, firstname='', lastname='',
             active=True, admin=False, extern_type=None, extern_name=None,
             cur_user=None, plugin=None, force_password_change=False,
             allow_to_create_user=True, create_repo_group=None,
             updating_user_id=None, language=None, description='',
             strict_creation_check=True):
         """
         Creates a new instance if not found, or updates current one
 
         :param username:
         :param password:
         :param email:
         :param firstname:
         :param lastname:
         :param active:
         :param admin:
         :param extern_type:
         :param extern_name:
         :param cur_user:
         :param plugin: optional plugin this method was called from
         :param force_password_change: toggles new or existing user flag
             for password change
         :param allow_to_create_user: Defines if the method can actually create
             new users
         :param create_repo_group: Defines if the method should also
             create an repo group with user name, and owner
         :param updating_user_id: if we set it up this is the user we want to
             update this allows to editing username.
         :param language: language of user from interface.
         :param description: user description
         :param strict_creation_check: checks for allowed creation license wise etc.
 
         :returns: new User object with injected `is_new_user` attribute.
         """
 
         if not cur_user:
             cur_user = getattr(get_current_rhodecode_user(), 'username', None)
 
         from rhodecode.lib.auth import (
             get_crypt_password, check_password)
         from rhodecode.lib import hooks_base
 
         def _password_change(new_user, password):
             old_password = new_user.password or ''
             # empty password
             if not old_password:
                 return False
 
             # password check is only needed for RhodeCode internal auth calls
             # in case it's a plugin we don't care
             if not plugin:
 
                 # first check if we gave crypted password back, and if it
                 # matches it's not password change
                 if new_user.password == password:
                     return False
 
                 password_match = check_password(password, old_password)
                 if not password_match:
                     return True
 
             return False
 
         # read settings on default personal repo group creation
         if create_repo_group is None:
             default_create_repo_group = RepoGroupModel()\
                 .get_default_create_personal_repo_group()
             create_repo_group = default_create_repo_group
 
         user_data = {
             'username': username,
             'password': password,
             'email': email,
             'firstname': firstname,
             'lastname': lastname,
             'active': active,
             'admin': admin
         }
 
         if updating_user_id:
             log.debug('Checking for existing account in RhodeCode '
                       'database with user_id `%s` ', updating_user_id)
             user = User.get(updating_user_id)
         else:
             log.debug('Checking for existing account in RhodeCode '
                       'database with username `%s` ', username)
             user = User.get_by_username(username, case_insensitive=True)
 
         if user is None:
             # we check internal flag if this method is actually allowed to
             # create new user
             if not allow_to_create_user:
                 msg = ('Method wants to create new user, but it is not '
                        'allowed to do so')
                 log.warning(msg)
                 raise NotAllowedToCreateUserError(msg)
 
             log.debug('Creating new user %s', username)
 
             # only if we create user that is active
             new_active_user = active
             if new_active_user and strict_creation_check:
                 # raises UserCreationError if it's not allowed for any reason to
                 # create new active user, this also executes pre-create hooks
                 hooks_base.check_allowed_create_user(user_data, cur_user, strict_check=True)
             events.trigger(events.UserPreCreate(user_data))
             new_user = User()
             edit = False
         else:
             log.debug('updating user `%s`', username)
             events.trigger(events.UserPreUpdate(user, user_data))
             new_user = user
             edit = True
 
             # we're not allowed to edit default user
             if user.username == User.DEFAULT_USER:
                 raise DefaultUserException(
                     "You can't edit this user (`%(username)s`) since it's "
                     "crucial for entire application"
                     % {'username': user.username})
 
         # inject special attribute that will tell us if User is new or old
         new_user.is_new_user = not edit
         # for users that didn's specify auth type, we use RhodeCode built in
         from rhodecode.authentication.plugins import auth_rhodecode
         extern_name = extern_name or auth_rhodecode.RhodeCodeAuthPlugin.uid
         extern_type = extern_type or auth_rhodecode.RhodeCodeAuthPlugin.uid
 
         try:
             new_user.username = username
             new_user.admin = admin
             new_user.email = email
             new_user.active = active
             new_user.extern_name = safe_unicode(extern_name)
             new_user.extern_type = safe_unicode(extern_type)
             new_user.name = firstname
             new_user.lastname = lastname
             new_user.description = description
 
             # set password only if creating an user or password is changed
             if not edit or _password_change(new_user, password):
                 reason = 'new password' if edit else 'new user'
                 log.debug('Updating password reason=>%s', reason)
                 new_user.password = get_crypt_password(password) if password else None
 
             if force_password_change:
                 new_user.update_userdata(force_password_change=True)
             if language:
                 new_user.update_userdata(language=language)
             new_user.update_userdata(notification_status=True)
 
             self.sa.add(new_user)
 
             if not edit and create_repo_group:
                 RepoGroupModel().create_personal_repo_group(
                     new_user, commit_early=False)
 
             if not edit:
                 # add the RSS token
                 self.add_auth_token(
                     user=username, lifetime_minutes=-1,
                     role=self.auth_token_role.ROLE_FEED,
                     description=u'Generated feed token')
 
                 kwargs = new_user.get_dict()
                 # backward compat, require api_keys present
                 kwargs['api_keys'] = kwargs['auth_tokens']
                 hooks_base.create_user(created_by=cur_user, **kwargs)
                 events.trigger(events.UserPostCreate(user_data))
             return new_user
         except (DatabaseError,):
             log.error(traceback.format_exc())
             raise
 
     def create_registration(self, form_data,
                             extern_name='rhodecode', extern_type='rhodecode'):
         from rhodecode.model.notification import NotificationModel
         from rhodecode.model.notification import EmailNotificationModel
 
         try:
             form_data['admin'] = False
             form_data['extern_name'] = extern_name
             form_data['extern_type'] = extern_type
             new_user = self.create(form_data)
 
             self.sa.add(new_user)
             self.sa.flush()
 
             user_data = new_user.get_dict()
             user_data.update({
                 'first_name': user_data.get('firstname'),
                 'last_name': user_data.get('lastname'),
             })
             kwargs = {
                 # use SQLALCHEMY safe dump of user data
                 'user': AttributeDict(user_data),
                 'date': datetime.datetime.now()
             }
             notification_type = EmailNotificationModel.TYPE_REGISTRATION
-            # pre-generate the subject for notification itself
-            (subject, _e, body_plaintext) = EmailNotificationModel().render_email(
-                notification_type, **kwargs)
 
             # create notification objects, and emails
             NotificationModel().create(
                 created_by=new_user,
-                notification_subject=subject,
-                notification_body=body_plaintext,
+                notification_subject='',  # Filled in based on the notification_type
+                notification_body='',  # Filled in based on the notification_type
                 notification_type=notification_type,
                 recipients=None,  # all admins
                 email_kwargs=kwargs,
             )
 
             return new_user
         except Exception:
             log.error(traceback.format_exc())
             raise
 
     def _handle_user_repos(self, username, repositories, handle_user,
                            handle_mode=None):
 
         left_overs = True
 
         from rhodecode.model.repo import RepoModel
 
         if handle_mode == 'detach':
             for obj in repositories:
                 obj.user = handle_user
                 # set description we know why we super admin now owns
                 # additional repositories that were orphaned !
                 obj.description += '  \n::detached repository from deleted user: %s' % (username,)
                 self.sa.add(obj)
             left_overs = False
         elif handle_mode == 'delete':
             for obj in repositories:
                 RepoModel().delete(obj, forks='detach')
             left_overs = False
 
         # if nothing is done we have left overs left
         return left_overs
 
     def _handle_user_repo_groups(self, username, repository_groups, handle_user,
                                  handle_mode=None):
 
         left_overs = True
 
         from rhodecode.model.repo_group import RepoGroupModel
 
         if handle_mode == 'detach':
             for r in repository_groups:
                 r.user = handle_user
                 # set description we know why we super admin now owns
                 # additional repositories that were orphaned !
                 r.group_description += '  \n::detached repository group from deleted user: %s' % (username,)
                 r.personal = False
                 self.sa.add(r)
             left_overs = False
         elif handle_mode == 'delete':
             for r in repository_groups:
                 RepoGroupModel().delete(r)
             left_overs = False
 
         # if nothing is done we have left overs left
         return left_overs
 
     def _handle_user_user_groups(self, username, user_groups, handle_user,
                                  handle_mode=None):
 
         left_overs = True
 
         from rhodecode.model.user_group import UserGroupModel
 
         if handle_mode == 'detach':
             for r in user_groups:
                 for user_user_group_to_perm in r.user_user_group_to_perm:
                     if user_user_group_to_perm.user.username == username:
                         user_user_group_to_perm.user = handle_user
                 r.user = handle_user
                 # set description we know why we super admin now owns
                 # additional repositories that were orphaned !
                 r.user_group_description += '  \n::detached user group from deleted user: %s' % (username,)
                 self.sa.add(r)
             left_overs = False
         elif handle_mode == 'delete':
             for r in user_groups:
                 UserGroupModel().delete(r)
             left_overs = False
 
         # if nothing is done we have left overs left
         return left_overs
 
     def _handle_user_pull_requests(self, username, pull_requests, handle_user,
                                    handle_mode=None):
         left_overs = True
 
         from rhodecode.model.pull_request import PullRequestModel
 
         if handle_mode == 'detach':
             for pr in pull_requests:
                 pr.user_id = handle_user.user_id
                 # set description we know why we super admin now owns
                 # additional repositories that were orphaned !
                 pr.description += '  \n::detached pull requests from deleted user: %s' % (username,)
                 self.sa.add(pr)
             left_overs = False
         elif handle_mode == 'delete':
             for pr in pull_requests:
                 PullRequestModel().delete(pr)
 
             left_overs = False
 
         # if nothing is done we have left overs left
         return left_overs
 
     def _handle_user_artifacts(self, username, artifacts, handle_user,
                                handle_mode=None):
 
         left_overs = True
 
         if handle_mode == 'detach':
             for a in artifacts:
                 a.upload_user = handle_user
                 # set description we know why we super admin now owns
                 # additional artifacts that were orphaned !
                 a.file_description += '  \n::detached artifact from deleted user: %s' % (username,)
                 self.sa.add(a)
             left_overs = False
         elif handle_mode == 'delete':
             from rhodecode.apps.file_store import utils as store_utils
             request = get_current_request()
             storage = store_utils.get_file_storage(request.registry.settings)
             for a in artifacts:
                 file_uid = a.file_uid
                 storage.delete(file_uid)
                 self.sa.delete(a)
 
             left_overs = False
 
         # if nothing is done we have left overs left
         return left_overs
 
     def delete(self, user, cur_user=None, handle_repos=None,
                handle_repo_groups=None, handle_user_groups=None,
                handle_pull_requests=None, handle_artifacts=None, handle_new_owner=None):
         from rhodecode.lib import hooks_base
 
         if not cur_user:
             cur_user = getattr(get_current_rhodecode_user(), 'username', None)
 
         user = self._get_user(user)
 
         try:
             if user.username == User.DEFAULT_USER:
                 raise DefaultUserException(
                     u"You can't remove this user since it's"
                     u" crucial for entire application")
             handle_user = handle_new_owner or self.cls.get_first_super_admin()
             log.debug('New detached objects owner %s', handle_user)
 
             left_overs = self._handle_user_repos(
                 user.username, user.repositories, handle_user, handle_repos)
             if left_overs and user.repositories:
                 repos = [x.repo_name for x in user.repositories]
                 raise UserOwnsReposException(
                     u'user "%(username)s" still owns %(len_repos)s repositories and cannot be '
                     u'removed. Switch owners or remove those repositories:%(list_repos)s'
                     % {'username': user.username, 'len_repos': len(repos),
                        'list_repos': ', '.join(repos)})
 
             left_overs = self._handle_user_repo_groups(
                 user.username, user.repository_groups, handle_user, handle_repo_groups)
             if left_overs and user.repository_groups:
                 repo_groups = [x.group_name for x in user.repository_groups]
                 raise UserOwnsRepoGroupsException(
                     u'user "%(username)s" still owns %(len_repo_groups)s repository groups and cannot be '
                     u'removed. Switch owners or remove those repository groups:%(list_repo_groups)s'
                     % {'username': user.username, 'len_repo_groups': len(repo_groups),
                        'list_repo_groups': ', '.join(repo_groups)})
 
             left_overs = self._handle_user_user_groups(
                 user.username, user.user_groups, handle_user, handle_user_groups)
             if left_overs and user.user_groups:
                 user_groups = [x.users_group_name for x in user.user_groups]
                 raise UserOwnsUserGroupsException(
                     u'user "%s" still owns %s user groups and cannot be '
                     u'removed. Switch owners or remove those user groups:%s'
                     % (user.username, len(user_groups), ', '.join(user_groups)))
 
             left_overs = self._handle_user_pull_requests(
                 user.username, user.user_pull_requests, handle_user, handle_pull_requests)
             if left_overs and user.user_pull_requests:
                 pull_requests = ['!{}'.format(x.pull_request_id) for x in user.user_pull_requests]
                 raise UserOwnsPullRequestsException(
                     u'user "%s" still owns %s pull requests and cannot be '
                     u'removed. Switch owners or remove those pull requests:%s'
                     % (user.username, len(pull_requests), ', '.join(pull_requests)))
 
             left_overs = self._handle_user_artifacts(
                 user.username, user.artifacts, handle_user, handle_artifacts)
             if left_overs and user.artifacts:
                 artifacts = [x.file_uid for x in user.artifacts]
                 raise UserOwnsArtifactsException(
                     u'user "%s" still owns %s artifacts and cannot be '
                     u'removed. Switch owners or remove those artifacts:%s'
                     % (user.username, len(artifacts), ', '.join(artifacts)))
 
             user_data = user.get_dict()  # fetch user data before expire
 
             # we might change the user data with detach/delete, make sure
             # the object is marked as expired before actually deleting !
             self.sa.expire(user)
             self.sa.delete(user)
 
             hooks_base.delete_user(deleted_by=cur_user, **user_data)
         except Exception:
             log.error(traceback.format_exc())
             raise
 
     def reset_password_link(self, data, pwd_reset_url):
         from rhodecode.lib.celerylib import tasks, run_task
         from rhodecode.model.notification import EmailNotificationModel
         user_email = data['email']
         try:
             user = User.get_by_email(user_email)
             if user:
                 log.debug('password reset user found %s', user)
 
                 email_kwargs = {
                     'password_reset_url': pwd_reset_url,
                     'user': user,
                     'email': user_email,
                     'date': datetime.datetime.now(),
                     'first_admin_email': User.get_first_super_admin().email
                 }
 
                 (subject, email_body, email_body_plaintext) = EmailNotificationModel().render_email(
                     EmailNotificationModel.TYPE_PASSWORD_RESET, **email_kwargs)
 
                 recipients = [user_email]
 
                 action_logger_generic(
                     'sending password reset email to user: {}'.format(
                         user), namespace='security.password_reset')
 
                 run_task(tasks.send_email, recipients, subject,
                          email_body_plaintext, email_body)
 
             else:
                 log.debug("password reset email %s not found", user_email)
         except Exception:
             log.error(traceback.format_exc())
             return False
 
         return True
 
     def reset_password(self, data):
         from rhodecode.lib.celerylib import tasks, run_task
         from rhodecode.model.notification import EmailNotificationModel
         from rhodecode.lib import auth
         user_email = data['email']
         pre_db = True
         try:
             user = User.get_by_email(user_email)
             new_passwd = auth.PasswordGenerator().gen_password(
                 12, auth.PasswordGenerator.ALPHABETS_BIG_SMALL)
             if user:
                 user.password = auth.get_crypt_password(new_passwd)
                 # also force this user to reset his password !
                 user.update_userdata(force_password_change=True)
 
                 Session().add(user)
 
                 # now delete the token in question
                 UserApiKeys = AuthTokenModel.cls
                 UserApiKeys().query().filter(
                     UserApiKeys.api_key == data['token']).delete()
 
                 Session().commit()
                 log.info('successfully reset password for `%s`', user_email)
 
             if new_passwd is None:
                 raise Exception('unable to generate new password')
 
             pre_db = False
 
             email_kwargs = {
                 'new_password': new_passwd,
                 'user': user,
                 'email': user_email,
                 'date': datetime.datetime.now(),
                 'first_admin_email': User.get_first_super_admin().email
             }
 
             (subject, email_body, email_body_plaintext) = EmailNotificationModel().render_email(
                 EmailNotificationModel.TYPE_PASSWORD_RESET_CONFIRMATION,
                 **email_kwargs)
 
             recipients = [user_email]
 
             action_logger_generic(
                 'sent new password to user: {} with email: {}'.format(
                     user, user_email), namespace='security.password_reset')
 
             run_task(tasks.send_email, recipients, subject,
                      email_body_plaintext, email_body)
 
         except Exception:
             log.error('Failed to update user password')
             log.error(traceback.format_exc())
             if pre_db:
                 # we rollback only if local db stuff fails. If it goes into
                 # run_task, we're pass rollback state this wouldn't work then
                 Session().rollback()
 
         return True
 
     def fill_data(self, auth_user, user_id=None, api_key=None, username=None):
         """
         Fetches auth_user by user_id,or api_key if present.
         Fills auth_user attributes with those taken from database.
         Additionally set's is_authenitated if lookup fails
         present in database
 
         :param auth_user: instance of user to set attributes
         :param user_id: user id to fetch by
         :param api_key: api key to fetch by
         :param username: username to fetch by
         """
         def token_obfuscate(token):
             if token:
                 return token[:4] + "****"
 
         if user_id is None and api_key is None and username is None:
             raise Exception('You need to pass user_id, api_key or username')
 
         log.debug(
             'AuthUser: fill data execution based on: '
             'user_id:%s api_key:%s username:%s', user_id, api_key, username)
         try:
             dbuser = None
             if user_id:
                 dbuser = self.get(user_id)
             elif api_key:
                 dbuser = self.get_by_auth_token(api_key)
             elif username:
                 dbuser = self.get_by_username(username)
 
             if not dbuser:
                 log.warning(
                     'Unable to lookup user by id:%s api_key:%s username:%s',
                     user_id, token_obfuscate(api_key), username)
                 return False
             if not dbuser.active:
                 log.debug('User `%s:%s` is inactive, skipping fill data',
                           username, user_id)
                 return False
 
             log.debug('AuthUser: filling found user:%s data', dbuser)
 
             attrs = {
                 'user_id': dbuser.user_id,
                 'username': dbuser.username,
                 'name': dbuser.name,
                 'first_name': dbuser.first_name,
                 'firstname': dbuser.firstname,
                 'last_name': dbuser.last_name,
                 'lastname': dbuser.lastname,
                 'admin': dbuser.admin,
                 'active': dbuser.active,
 
                 'email': dbuser.email,
                 'emails': dbuser.emails_cached(),
                 'short_contact': dbuser.short_contact,
                 'full_contact': dbuser.full_contact,
                 'full_name': dbuser.full_name,
                 'full_name_or_username': dbuser.full_name_or_username,
 
                 '_api_key': dbuser._api_key,
                 '_user_data': dbuser._user_data,
 
                 'created_on': dbuser.created_on,
                 'extern_name': dbuser.extern_name,
                 'extern_type': dbuser.extern_type,
 
                 'inherit_default_permissions': dbuser.inherit_default_permissions,
 
                 'language': dbuser.language,
                 'last_activity': dbuser.last_activity,
                 'last_login': dbuser.last_login,
                 'password': dbuser.password,
             }
             auth_user.__dict__.update(attrs)
         except Exception:
             log.error(traceback.format_exc())
             auth_user.is_authenticated = False
             return False
 
         return True
 
     def has_perm(self, user, perm):
         perm = self._get_perm(perm)
         user = self._get_user(user)
 
         return UserToPerm.query().filter(UserToPerm.user == user)\
             .filter(UserToPerm.permission == perm).scalar() is not None
 
     def grant_perm(self, user, perm):
         """
         Grant user global permissions
 
         :param user:
         :param perm:
         """
         user = self._get_user(user)
         perm = self._get_perm(perm)
         # if this permission is already granted skip it
         _perm = UserToPerm.query()\
             .filter(UserToPerm.user == user)\
             .filter(UserToPerm.permission == perm)\
             .scalar()
         if _perm:
             return
         new = UserToPerm()
         new.user = user
         new.permission = perm
         self.sa.add(new)
         return new
 
     def revoke_perm(self, user, perm):
         """
         Revoke users global permissions
 
         :param user:
         :param perm:
         """
         user = self._get_user(user)
         perm = self._get_perm(perm)
 
         obj = UserToPerm.query()\
                 .filter(UserToPerm.user == user)\
                 .filter(UserToPerm.permission == perm)\
                 .scalar()
         if obj:
             self.sa.delete(obj)
 
     def add_extra_email(self, user, email):
         """
         Adds email address to UserEmailMap
 
         :param user:
         :param email:
         """
 
         user = self._get_user(user)
 
         obj = UserEmailMap()
         obj.user = user
         obj.email = email
         self.sa.add(obj)
         return obj
 
     def delete_extra_email(self, user, email_id):
         """
         Removes email address from UserEmailMap
 
         :param user:
         :param email_id:
         """
         user = self._get_user(user)
         obj = UserEmailMap.query().get(email_id)
         if obj and obj.user_id == user.user_id:
             self.sa.delete(obj)
 
     def parse_ip_range(self, ip_range):
         ip_list = []
 
         def make_unique(value):
             seen = []
             return [c for c in value if not (c in seen or seen.append(c))]
 
         # firsts split by commas
         for ip_range in ip_range.split(','):
             if not ip_range:
                 continue
             ip_range = ip_range.strip()
             if '-' in ip_range:
                 start_ip, end_ip = ip_range.split('-', 1)
                 start_ip = ipaddress.ip_address(safe_unicode(start_ip.strip()))
                 end_ip = ipaddress.ip_address(safe_unicode(end_ip.strip()))
                 parsed_ip_range = []
 
                 for index in range(int(start_ip), int(end_ip) + 1):
                     new_ip = ipaddress.ip_address(index)
                     parsed_ip_range.append(str(new_ip))
                 ip_list.extend(parsed_ip_range)
             else:
                 ip_list.append(ip_range)
 
         return make_unique(ip_list)
 
     def add_extra_ip(self, user, ip, description=None):
         """
         Adds ip address to UserIpMap
 
         :param user:
         :param ip:
         """
 
         user = self._get_user(user)
         obj = UserIpMap()
         obj.user = user
         obj.ip_addr = ip
         obj.description = description
         self.sa.add(obj)
         return obj
 
     auth_token_role = AuthTokenModel.cls
 
     def add_auth_token(self, user, lifetime_minutes, role, description=u'',
                        scope_callback=None):
         """
         Add AuthToken for user.
 
         :param user: username/user_id
         :param lifetime_minutes: in minutes the lifetime for token, -1 equals no limit
         :param role: one of AuthTokenModel.cls.ROLE_*
         :param description: optional string description
         """
 
         token = AuthTokenModel().create(
             user, description, lifetime_minutes, role)
         if scope_callback and callable(scope_callback):
             # call the callback if we provide, used to attach scope for EE edition
             scope_callback(token)
         return token
 
     def delete_extra_ip(self, user, ip_id):
         """
         Removes ip address from UserIpMap
 
         :param user:
         :param ip_id:
         """
         user = self._get_user(user)
         obj = UserIpMap.query().get(ip_id)
         if obj and obj.user_id == user.user_id:
             self.sa.delete(obj)
 
     def get_accounts_in_creation_order(self, current_user=None):
         """
         Get accounts in order of creation for deactivation for license limits
 
         pick currently logged in user, and append to the list in position 0
         pick all super-admins in order of creation date and add it to the list
         pick all other accounts in order of creation and add it to the list.
 
         Based on that list, the last accounts can be disabled as they are
         created at the end and don't include any of the super admins as well
         as the current user.
 
         :param current_user: optionally current user running this operation
         """
 
         if not current_user:
             current_user = get_current_rhodecode_user()
         active_super_admins = [
             x.user_id for x in User.query()
             .filter(User.user_id != current_user.user_id)
             .filter(User.active == true())
             .filter(User.admin == true())
             .order_by(User.created_on.asc())]
 
         active_regular_users = [
             x.user_id for x in User.query()
             .filter(User.user_id != current_user.user_id)
             .filter(User.active == true())
             .filter(User.admin == false())
             .order_by(User.created_on.asc())]
 
         list_of_accounts = [current_user.user_id]
         list_of_accounts += active_super_admins
         list_of_accounts += active_regular_users
 
         return list_of_accounts
 
     def deactivate_last_users(self, expected_users, current_user=None):
         """
         Deactivate accounts that are over the license limits.
         Algorithm of which accounts to disabled is based on the formula:
 
         Get current user, then super admins in creation order, then regular
         active users in creation order.
 
         Using that list we mark all accounts from the end of it as inactive.
         This way we block only latest created accounts.
 
         :param expected_users: list of users in special order, we deactivate
             the end N amount of users from that list
         """
 
         list_of_accounts = self.get_accounts_in_creation_order(
             current_user=current_user)
 
         for acc_id in list_of_accounts[expected_users + 1:]:
             user = User.get(acc_id)
             log.info('Deactivating account %s for license unlock', user)
             user.active = False
             Session().add(user)
             Session().commit()
 
         return
 
     def get_user_log(self, user, filter_term):
         user_log = UserLog.query()\
             .filter(or_(UserLog.user_id == user.user_id,
                         UserLog.username == user.username))\
             .options(joinedload(UserLog.user))\
             .options(joinedload(UserLog.repository))\
             .order_by(UserLog.action_date.desc())
 
         user_log = user_log_filter(user_log, filter_term)
         return user_log