missing changesets should return 404 not redirect + flash.

It feels more correct.

rhodecode/controllers/changeset.py

@@ -1,404 +1,404 b''
 # -*- coding: utf-8 -*-
 """
     rhodecode.controllers.changeset
     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
     changeset controller for pylons showoing changes beetween
     revisions
 
     :created_on: Apr 25, 2010
     :author: marcink
     :copyright: (C) 2010-2012 Marcin Kuzminski <[e-mail]>
     :license: GPLv3, see COPYING for more details.
 """
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
 # the Free Software Foundation, either version 3 of the License, or
 # (at your option) any later version.
 #
 # This program is distributed in the hope that it will be useful,
 # but WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 import logging
 import traceback
 from collections import defaultdict
-from webob.exc import HTTPForbidden, HTTPBadRequest
+from webob.exc import HTTPForbidden, HTTPBadRequest, HTTPNotFound
 
 from pylons import tmpl_context as c, url, request, response
 from pylons.i18n.translation import _
 from pylons.controllers.util import redirect
 from rhodecode.lib.utils import jsonify
 
 from rhodecode.lib.vcs.exceptions import RepositoryError, \
     ChangesetDoesNotExistError
 
 import rhodecode.lib.helpers as h
 from rhodecode.lib.auth import LoginRequired, HasRepoPermissionAnyDecorator
 from rhodecode.lib.base import BaseRepoController, render
 from rhodecode.lib.utils import action_logger
 from rhodecode.lib.compat import OrderedDict
 from rhodecode.lib import diffs
 from rhodecode.model.db import ChangesetComment, ChangesetStatus
 from rhodecode.model.comment import ChangesetCommentsModel
 from rhodecode.model.changeset_status import ChangesetStatusModel
 from rhodecode.model.meta import Session
 from rhodecode.model.repo import RepoModel
 from rhodecode.lib.diffs import LimitedDiffContainer
 from rhodecode.lib.exceptions import StatusChangeOnClosedPullRequestError
 from rhodecode.lib.vcs.backends.base import EmptyChangeset
 from rhodecode.lib.utils2 import safe_unicode
 
 log = logging.getLogger(__name__)
 
 
 def _update_with_GET(params, GET):
     for k in ['diff1', 'diff2', 'diff']:
         params[k] += GET.getall(k)
 
 
 def anchor_url(revision, path, GET):
     fid = h.FID(revision, path)
     return h.url.current(anchor=fid, **dict(GET))
 
 
 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:
             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)
     lbl = _('show white space')
     ig_ws = get_ignore_ws(fileid, GET)
     ln_ctx = get_line_ctx(fileid, GET)
     # global option
     if fileid is None:
         if ig_ws is None:
             params['ignorews'] += [1]
             lbl = _('ignore white space')
         ctx_key = 'context'
         ctx_val = ln_ctx
     # per file options
     else:
         if ig_ws is None:
             params[fileid] += ['WS:1']
             lbl = _('ignore white space')
 
         ctx_key = fileid
         ctx_val = 'C:%s' % ln_ctx
     # if we have passed in ln_ctx pass it along to our params
     if ln_ctx:
         params[ctx_key] += [ctx_val]
 
     params['anchor'] = fileid
     img = h.image(h.url('/images/icons/text_strikethrough.png'), lbl, class_='icon')
     return h.link_to(img, h.url.current(**params), title=lbl, 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:
         return 3
 
 
 def _context_url(GET, fileid=None):
     """
     Generates 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)
 
     # global option
     if fileid is None:
         if ln_ctx > 0:
             params['context'] += [ln_ctx]
 
         if ig_ws:
             ig_ws_key = 'ignorews'
             ig_ws_val = 1
 
     # per file option
     else:
         params[fileid] += ['C:%s' % ln_ctx]
         ig_ws_key = fileid
         ig_ws_val = 'WS:%s' % 1
 
     if ig_ws:
         params[ig_ws_key] += [ig_ws_val]
 
     lbl = _('%s line context') % ln_ctx
 
     params['anchor'] = fileid
     img = h.image(h.url('/images/icons/table_add.png'), lbl, class_='icon')
     return h.link_to(img, h.url.current(**params), title=lbl, class_='tooltip')
 
 
 class ChangesetController(BaseRepoController):
 
     @LoginRequired()
     @HasRepoPermissionAnyDecorator('repository.read', 'repository.write',
                                    'repository.admin')
     def __before__(self):
         super(ChangesetController, self).__before__()
         c.affected_files_cut_off = 60
         repo_model = RepoModel()
         c.users_array = repo_model.get_users_js()
         c.users_groups_array = repo_model.get_users_groups_js()
 
     def index(self, revision, method='show'):
         c.anchor_url = anchor_url
         c.ignorews_url = _ignorews_url
         c.context_url = _context_url
         c.fulldiff = fulldiff = request.GET.get('fulldiff')
         #get ranges of revisions if preset
         rev_range = revision.split('...')[:2]
         enable_comments = True
         try:
             if len(rev_range) == 2:
                 enable_comments = False
                 rev_start = rev_range[0]
                 rev_end = rev_range[1]
                 rev_ranges = c.rhodecode_repo.get_changesets(start=rev_start,
                                                              end=rev_end)
             else:
                 rev_ranges = [c.rhodecode_repo.get_changeset(revision)]
 
             c.cs_ranges = list(rev_ranges)
             if not c.cs_ranges:
                 raise RepositoryError('Changeset range returned empty result')
 
         except (RepositoryError, ChangesetDoesNotExistError, Exception), e:
             log.error(traceback.format_exc())
             h.flash(str(e), category='error')
-            return redirect(url('changeset_home', repo_name=c.repo_name))
+            raise HTTPNotFound()
 
         c.changes = OrderedDict()
 
         c.lines_added = 0  # count of lines added
         c.lines_deleted = 0  # count of lines removes
 
         c.changeset_statuses = ChangesetStatus.STATUSES
         c.comments = []
         c.statuses = []
         c.inline_comments = []
         c.inline_cnt = 0
 
         # Iterate over ranges (default changeset view is always one changeset)
         for changeset in c.cs_ranges:
             inlines = []
             if method == 'show':
                 c.statuses.extend([ChangesetStatusModel().get_status(
                             c.rhodecode_db_repo.repo_id, changeset.raw_id)])
 
                 c.comments.extend(ChangesetCommentsModel()\
                                   .get_comments(c.rhodecode_db_repo.repo_id,
                                                 revision=changeset.raw_id))
 
                 #comments from PR
                 st = ChangesetStatusModel().get_statuses(
                             c.rhodecode_db_repo.repo_id, changeset.raw_id,
                             with_revisions=True)
                 # from associated statuses, check the pull requests, and
                 # show comments from them
 
                 prs = set([x.pull_request for x in
                            filter(lambda x: x.pull_request != None, st)])
 
                 for pr in prs:
                     c.comments.extend(pr.comments)
                 inlines = ChangesetCommentsModel()\
                             .get_inline_comments(c.rhodecode_db_repo.repo_id,
                                                  revision=changeset.raw_id)
                 c.inline_comments.extend(inlines)
 
             c.changes[changeset.raw_id] = []
 
             cs2 = changeset.raw_id
             cs1 = changeset.parents[0].raw_id if changeset.parents else EmptyChangeset()
             context_lcl = get_line_ctx('', request.GET)
             ign_whitespace_lcl = ign_whitespace_lcl = get_ignore_ws('', request.GET)
 
             _diff = c.rhodecode_repo.get_diff(cs1, cs2,
                 ignore_whitespace=ign_whitespace_lcl, context=context_lcl)
             diff_limit = self.cut_off_limit if not fulldiff else None
             diff_processor = diffs.DiffProcessor(_diff,
                                                  vcs=c.rhodecode_repo.alias,
                                                  format='gitdiff',
                                                  diff_limit=diff_limit)
             cs_changes = OrderedDict()
             if method == 'show':
                 _parsed = diff_processor.prepare()
                 c.limited_diff = False
                 if isinstance(_parsed, LimitedDiffContainer):
                     c.limited_diff = True
                 for f in _parsed:
                     st = f['stats']
                     if st[0] != 'b':
                         c.lines_added += st[0]
                         c.lines_deleted += st[1]
                     fid = h.FID(changeset.raw_id, f['filename'])
                     diff = diff_processor.as_html(enable_comments=enable_comments,
                                                   parsed_lines=[f])
                     cs_changes[fid] = [cs1, cs2, f['operation'], f['filename'],
                                        diff, st]
             else:
                 # downloads/raw we only need RAW diff nothing else
                 diff = diff_processor.as_raw()
                 cs_changes[''] = [None, None, None, None, diff, None]
             c.changes[changeset.raw_id] = cs_changes
 
         #sort comments by how they were generated
         c.comments = sorted(c.comments, key=lambda x: x.comment_id)
 
         # count inline comments
         for __, lines in c.inline_comments:
             for comments in lines.values():
                 c.inline_cnt += len(comments)
 
         if len(c.cs_ranges) == 1:
             c.changeset = c.cs_ranges[0]
             c.parent_tmpl = ''.join(['# Parent  %s\n' % x.raw_id
                                      for x in c.changeset.parents])
         if method == 'download':
             response.content_type = 'text/plain'
             response.content_disposition = 'attachment; filename=%s.diff' \
                                             % revision[:12]
             return diff
         elif method == 'patch':
             response.content_type = 'text/plain'
             c.diff = safe_unicode(diff)
             return render('changeset/patch_changeset.html')
         elif method == 'raw':
             response.content_type = 'text/plain'
             return diff
         elif method == 'show':
             if len(c.cs_ranges) == 1:
                 return render('changeset/changeset.html')
             else:
                 return render('changeset/changeset_range.html')
 
     def changeset_raw(self, revision):
         return self.index(revision, method='raw')
 
     def changeset_patch(self, revision):
         return self.index(revision, method='patch')
 
     def changeset_download(self, revision):
         return self.index(revision, method='download')
 
     @jsonify
     def comment(self, repo_name, revision):
         status = request.POST.get('changeset_status')
         change_status = request.POST.get('change_changeset_status')
         text = request.POST.get('text')
         if status and change_status:
             text = text or (_('Status change -> %s')
                             % ChangesetStatus.get_status_lbl(status))
 
         c.co = comm = ChangesetCommentsModel().create(
             text=text,
             repo=c.rhodecode_db_repo.repo_id,
             user=c.rhodecode_user.user_id,
             revision=revision,
             f_path=request.POST.get('f_path'),
             line_no=request.POST.get('line'),
             status_change=(ChangesetStatus.get_status_lbl(status)
                            if status and change_status else None)
         )
 
         # get status if set !
         if status and change_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,
                     comm,
                     revision=revision,
                     dont_allow_on_closed_pull_request=True
                 )
             except StatusChangeOnClosedPullRequestError:
                 log.error(traceback.format_exc())
                 msg = _('Changing status on a changeset associated with '
                         'a closed pull request is not allowed')
                 h.flash(msg, category='warning')
                 return redirect(h.url('changeset_home', repo_name=repo_name,
                                       revision=revision))
         action_logger(self.rhodecode_user,
                       'user_commented_revision:%s' % revision,
                       c.rhodecode_db_repo, self.ip_addr, self.sa)
 
         Session().commit()
 
         if not request.environ.get('HTTP_X_PARTIAL_XHR'):
             return redirect(h.url('changeset_home', repo_name=repo_name,
                                   revision=revision))
         #only ajax below
         data = {
            'target_id': h.safeid(h.safe_unicode(request.POST.get('f_path'))),
         }
         if comm:
             data.update(comm.get_dict())
             data.update({'rendered_text':
                          render('changeset/changeset_comment_block.html')})
 
         return data
 
     @jsonify
     def delete_comment(self, repo_name, comment_id):
         co = ChangesetComment.get(comment_id)
         owner = co.author.user_id == c.rhodecode_user.user_id
         if h.HasPermissionAny('hg.admin', 'repository.admin')() or owner:
             ChangesetCommentsModel().delete(comment=co)
             Session().commit()
             return True
         else:
             raise HTTPForbidden()
 
     @jsonify
     def changeset_info(self, repo_name, revision):
         if request.is_xhr:
             try:
                 return c.rhodecode_repo.get_changeset(revision)
             except ChangesetDoesNotExistError, e:
                 return EmptyChangeset(message=str(e))
         else:
             raise HTTPBadRequest()