comments: skip already deleted comments and make sure we don't raise unnecessary errors.

rhodecode/controllers/changeset.py

@@ -1,475 +1,480 b''
 # -*- coding: utf-8 -*-
 
 # Copyright (C) 2010-2017 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/
 
 """
 commit controller for RhodeCode showing changes between commits
 """
 
 import logging
 
 from collections import defaultdict
 from webob.exc import HTTPForbidden, HTTPBadRequest, HTTPNotFound
 
 from pylons import tmpl_context as c, request, response
 from pylons.i18n.translation import _
 from pylons.controllers.util import redirect
 
 from rhodecode.lib import auth
 from rhodecode.lib import diffs, codeblocks
 from rhodecode.lib.auth import (
     LoginRequired, HasRepoPermissionAnyDecorator, NotAnonymous)
 from rhodecode.lib.base import BaseRepoController, render
 from rhodecode.lib.compat import OrderedDict
 from rhodecode.lib.exceptions import StatusChangeOnClosedPullRequestError
 import rhodecode.lib.helpers as h
 from rhodecode.lib.utils import action_logger, jsonify
 from rhodecode.lib.utils2 import safe_unicode
 from rhodecode.lib.vcs.backends.base import EmptyCommit
 from rhodecode.lib.vcs.exceptions import (
     RepositoryError, CommitDoesNotExistError, NodeDoesNotExistError)
 from rhodecode.model.db import ChangesetComment, ChangesetStatus
 from rhodecode.model.changeset_status import ChangesetStatusModel
 from rhodecode.model.comment import CommentsModel
 from rhodecode.model.meta import Session
 from rhodecode.model.repo import RepoModel
 
 
 log = logging.getLogger(__name__)
 
 
 def _update_with_GET(params, GET):
     for k in ['diff1', 'diff2', 'diff']:
         params[k] += GET.getall(k)
 
 
 def get_ignore_ws(fid, GET):
     ig_ws_global = GET.get('ignorews')
     ig_ws = filter(lambda k: k.startswith('WS'), GET.getall(fid))
     if ig_ws:
         try:
             return int(ig_ws[0].split(':')[-1])
         except Exception:
             pass
     return ig_ws_global
 
 
 def _ignorews_url(GET, fileid=None):
     fileid = str(fileid) if fileid else None
     params = defaultdict(list)
     _update_with_GET(params, GET)
     label = _('Show whitespace')
     tooltiplbl = _('Show whitespace for all diffs')
     ig_ws = get_ignore_ws(fileid, GET)
     ln_ctx = get_line_ctx(fileid, GET)
 
     if ig_ws is None:
         params['ignorews'] += [1]
         label = _('Ignore whitespace')
         tooltiplbl = _('Ignore whitespace for all diffs')
     ctx_key = 'context'
     ctx_val = ln_ctx
 
     # if we have passed in ln_ctx pass it along to our params
     if ln_ctx:
         params[ctx_key] += [ctx_val]
 
     if fileid:
         params['anchor'] = 'a_' + fileid
     return h.link_to(label, h.url.current(**params), title=tooltiplbl, class_='tooltip')
 
 
 def get_line_ctx(fid, GET):
     ln_ctx_global = GET.get('context')
     if fid:
         ln_ctx = filter(lambda k: k.startswith('C'), GET.getall(fid))
     else:
         _ln_ctx = filter(lambda k: k.startswith('C'), GET)
         ln_ctx = GET.get(_ln_ctx[0]) if _ln_ctx  else ln_ctx_global
         if ln_ctx:
             ln_ctx = [ln_ctx]
 
     if ln_ctx:
         retval = ln_ctx[0].split(':')[-1]
     else:
         retval = ln_ctx_global
 
     try:
         return int(retval)
     except Exception:
         return 3
 
 
 def _context_url(GET, fileid=None):
     """
     Generates a url for context lines.
 
     :param fileid:
     """
 
     fileid = str(fileid) if fileid else None
     ig_ws = get_ignore_ws(fileid, GET)
     ln_ctx = (get_line_ctx(fileid, GET) or 3) * 2
 
     params = defaultdict(list)
     _update_with_GET(params, GET)
 
     if ln_ctx > 0:
         params['context'] += [ln_ctx]
 
     if ig_ws:
         ig_ws_key = 'ignorews'
         ig_ws_val = 1
         params[ig_ws_key] += [ig_ws_val]
 
     lbl = _('Increase context')
     tooltiplbl = _('Increase context for all diffs')
 
     if fileid:
         params['anchor'] = 'a_' + fileid
     return h.link_to(lbl, h.url.current(**params), title=tooltiplbl, class_='tooltip')
 
 
 class ChangesetController(BaseRepoController):
 
     def __before__(self):
         super(ChangesetController, self).__before__()
         c.affected_files_cut_off = 60
 
     def _index(self, commit_id_range, method):
         c.ignorews_url = _ignorews_url
         c.context_url = _context_url
         c.fulldiff = fulldiff = request.GET.get('fulldiff')
 
         # fetch global flags of ignore ws or context lines
         context_lcl = get_line_ctx('', request.GET)
         ign_whitespace_lcl = get_ignore_ws('', request.GET)
 
         # diff_limit will cut off the whole diff if the limit is applied
         # otherwise it will just hide the big files from the front-end
         diff_limit = self.cut_off_limit_diff
         file_limit = self.cut_off_limit_file
 
         # get ranges of commit ids if preset
         commit_range = commit_id_range.split('...')[:2]
 
         try:
             pre_load = ['affected_files', 'author', 'branch', 'date',
                         'message', 'parents']
 
             if len(commit_range) == 2:
                 commits = c.rhodecode_repo.get_commits(
                     start_id=commit_range[0], end_id=commit_range[1],
                     pre_load=pre_load)
                 commits = list(commits)
             else:
                 commits = [c.rhodecode_repo.get_commit(
                     commit_id=commit_id_range, pre_load=pre_load)]
 
             c.commit_ranges = commits
             if not c.commit_ranges:
                 raise RepositoryError(
                     'The commit range returned an empty result')
         except CommitDoesNotExistError:
             msg = _('No such commit exists for this repository')
             h.flash(msg, category='error')
             raise HTTPNotFound()
         except Exception:
             log.exception("General failure")
             raise HTTPNotFound()
 
         c.changes = OrderedDict()
         c.lines_added = 0
         c.lines_deleted = 0
 
         # auto collapse if we have more than limit
         collapse_limit = diffs.DiffProcessor._collapse_commits_over
         c.collapse_all_commits = len(c.commit_ranges) > collapse_limit
 
         c.commit_statuses = ChangesetStatus.STATUSES
         c.inline_comments = []
         c.files = []
 
         c.statuses = []
         c.comments = []
         if len(c.commit_ranges) == 1:
             commit = c.commit_ranges[0]
             c.comments = CommentsModel().get_comments(
                 c.rhodecode_db_repo.repo_id,
                 revision=commit.raw_id)
             c.statuses.append(ChangesetStatusModel().get_status(
                 c.rhodecode_db_repo.repo_id, commit.raw_id))
             # comments from PR
             statuses = ChangesetStatusModel().get_statuses(
                 c.rhodecode_db_repo.repo_id, commit.raw_id,
                 with_revisions=True)
             prs = set(st.pull_request for st in statuses
                       if st.pull_request is not None)
             # from associated statuses, check the pull requests, and
             # show comments from them
             for pr in prs:
                 c.comments.extend(pr.comments)
 
         # Iterate over ranges (default commit view is always one commit)
         for commit in c.commit_ranges:
             c.changes[commit.raw_id] = []
 
             commit2 = commit
             commit1 = commit.parents[0] if commit.parents else EmptyCommit()
 
             _diff = c.rhodecode_repo.get_diff(
                 commit1, commit2,
                 ignore_whitespace=ign_whitespace_lcl, context=context_lcl)
             diff_processor = diffs.DiffProcessor(
                 _diff, format='newdiff', diff_limit=diff_limit,
                 file_limit=file_limit, show_full_diff=fulldiff)
 
             commit_changes = OrderedDict()
             if method == 'show':
                 _parsed = diff_processor.prepare()
                 c.limited_diff = isinstance(_parsed, diffs.LimitedDiffContainer)
 
                 _parsed = diff_processor.prepare()
 
                 def _node_getter(commit):
                     def get_node(fname):
                         try:
                             return commit.get_node(fname)
                         except NodeDoesNotExistError:
                             return None
                     return get_node
 
                 inline_comments = CommentsModel().get_inline_comments(
                     c.rhodecode_db_repo.repo_id, revision=commit.raw_id)
                 c.inline_cnt = CommentsModel().get_inline_comments_count(
                     inline_comments)
 
                 diffset = codeblocks.DiffSet(
                     repo_name=c.repo_name,
                     source_node_getter=_node_getter(commit1),
                     target_node_getter=_node_getter(commit2),
                     comments=inline_comments
                 ).render_patchset(_parsed, commit1.raw_id, commit2.raw_id)
                 c.changes[commit.raw_id] = diffset
             else:
                 # downloads/raw we only need RAW diff nothing else
                 diff = diff_processor.as_raw()
                 c.changes[commit.raw_id] = [None, None, None, None, diff, None, None]
 
         # sort comments by how they were generated
         c.comments = sorted(c.comments, key=lambda x: x.comment_id)
 
 
         if len(c.commit_ranges) == 1:
             c.commit = c.commit_ranges[0]
             c.parent_tmpl = ''.join(
                 '# Parent  %s\n' % x.raw_id for x in c.commit.parents)
         if method == 'download':
             response.content_type = 'text/plain'
             response.content_disposition = (
                 'attachment; filename=%s.diff' % commit_id_range[:12])
             return diff
         elif method == 'patch':
             response.content_type = 'text/plain'
             c.diff = safe_unicode(diff)
             return render('changeset/patch_changeset.mako')
         elif method == 'raw':
             response.content_type = 'text/plain'
             return diff
         elif method == 'show':
             if len(c.commit_ranges) == 1:
                 return render('changeset/changeset.mako')
             else:
                 c.ancestor = None
                 c.target_repo = c.rhodecode_db_repo
                 return render('changeset/changeset_range.mako')
 
     @LoginRequired()
     @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',
                                    'repository.admin')
     def index(self, revision, method='show'):
         return self._index(revision, method=method)
 
     @LoginRequired()
     @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',
                                    'repository.admin')
     def changeset_raw(self, revision):
         return self._index(revision, method='raw')
 
     @LoginRequired()
     @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',
                                    'repository.admin')
     def changeset_patch(self, revision):
         return self._index(revision, method='patch')
 
     @LoginRequired()
     @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',
                                    'repository.admin')
     def changeset_download(self, revision):
         return self._index(revision, method='download')
 
     @LoginRequired()
     @NotAnonymous()
     @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',
                                    'repository.admin')
     @auth.CSRFRequired()
     @jsonify
     def comment(self, repo_name, revision):
         commit_id = revision
         status = request.POST.get('changeset_status', None)
         text = request.POST.get('text')
         comment_type = request.POST.get('comment_type')
         resolves_comment_id = request.POST.get('resolves_comment_id', None)
 
         if status:
             text = text or (_('Status change %(transition_icon)s %(status)s')
                             % {'transition_icon': '>',
                                'status': ChangesetStatus.get_status_lbl(status)})
 
         multi_commit_ids = filter(
             lambda s: s not in ['', None],
             request.POST.get('commit_ids', '').split(','),)
 
         commit_ids = multi_commit_ids or [commit_id]
         comment = None
         for current_id in filter(None, commit_ids):
             c.co = comment = CommentsModel().create(
                 text=text,
                 repo=c.rhodecode_db_repo.repo_id,
                 user=c.rhodecode_user.user_id,
                 commit_id=current_id,
                 f_path=request.POST.get('f_path'),
                 line_no=request.POST.get('line'),
                 status_change=(ChangesetStatus.get_status_lbl(status)
                                if status else None),
                 status_change_type=status,
                 comment_type=comment_type,
                 resolves_comment_id=resolves_comment_id
             )
             c.inline_comment = True if comment.line_no else False
 
             # get status if set !
             if status:
                 # if latest status was from pull request and it's closed
                 # disallow changing status !
                 # dont_allow_on_closed_pull_request = True !
 
                 try:
                     ChangesetStatusModel().set_status(
                         c.rhodecode_db_repo.repo_id,
                         status,
                         c.rhodecode_user.user_id,
                         comment,
                         revision=current_id,
                         dont_allow_on_closed_pull_request=True
                     )
                 except StatusChangeOnClosedPullRequestError:
                     msg = _('Changing the status of a commit associated with '
                             'a closed pull request is not allowed')
                     log.exception(msg)
                     h.flash(msg, category='warning')
                     return redirect(h.url(
                         'changeset_home', repo_name=repo_name,
                         revision=current_id))
 
         # finalize, commit and redirect
         Session().commit()
 
         data = {
             'target_id': h.safeid(h.safe_unicode(request.POST.get('f_path'))),
         }
         if comment:
             data.update(comment.get_dict())
             data.update({'rendered_text':
                          render('changeset/changeset_comment_block.mako')})
 
         return data
 
     @LoginRequired()
     @NotAnonymous()
     @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',
                                    'repository.admin')
     @auth.CSRFRequired()
     def preview_comment(self):
         # Technically a CSRF token is not needed as no state changes with this
         # call. However, as this is a POST is better to have it, so automated
         # tools don't flag it as potential CSRF.
         # Post is required because the payload could be bigger than the maximum
         # allowed by GET.
         if not request.environ.get('HTTP_X_PARTIAL_XHR'):
             raise HTTPBadRequest()
         text = request.POST.get('text')
         renderer = request.POST.get('renderer') or 'rst'
         if text:
             return h.render(text, renderer=renderer, mentions=True)
         return ''
 
     @LoginRequired()
     @NotAnonymous()
     @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',
                                    'repository.admin')
     @auth.CSRFRequired()
     @jsonify
     def delete_comment(self, repo_name, comment_id):
         comment = ChangesetComment.get(comment_id)
+        if not comment:
+            log.debug('Comment with id:%s not found, skipping', comment_id)
+            # comment already deleted in another call probably
+            return True
+
         owner = (comment.author.user_id == c.rhodecode_user.user_id)
         is_repo_admin = h.HasRepoPermissionAny('repository.admin')(c.repo_name)
         if h.HasPermissionAny('hg.admin')() or is_repo_admin or owner:
             CommentsModel().delete(comment=comment)
             Session().commit()
             return True
         else:
             raise HTTPForbidden()
 
     @LoginRequired()
     @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',
                                    'repository.admin')
     @jsonify
     def changeset_info(self, repo_name, revision):
         if request.is_xhr:
             try:
                 return c.rhodecode_repo.get_commit(commit_id=revision)
             except CommitDoesNotExistError as e:
                 return EmptyCommit(message=str(e))
         else:
             raise HTTPBadRequest()
 
     @LoginRequired()
     @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',
                                    'repository.admin')
     @jsonify
     def changeset_children(self, repo_name, revision):
         if request.is_xhr:
             commit = c.rhodecode_repo.get_commit(commit_id=revision)
             result = {"results": commit.children}
             return result
         else:
             raise HTTPBadRequest()
 
     @LoginRequired()
     @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',
                                    'repository.admin')
     @jsonify
     def changeset_parents(self, repo_name, revision):
         if request.is_xhr:
             commit = c.rhodecode_repo.get_commit(commit_id=revision)
             result = {"results": commit.parents}
             return result
         else:
             raise HTTPBadRequest()