public function handleRequest(AphrontRequest $request)
 {
     $response = $this->loadDiffusionContext();
     if ($response) {
         return $response;
     }
     $viewer = $this->getViewer();
     $drequest = $this->getDiffusionRequest();
     $data = $this->callConduitWithDiffusionRequest('diffusion.diffquery', array('commit' => $drequest->getCommit(), 'path' => $drequest->getPath()));
     $drequest->updateSymbolicCommit($data['effectiveCommit']);
     $raw_changes = ArcanistDiffChange::newFromConduit($data['changes']);
     $diff = DifferentialDiff::newEphemeralFromRawChanges($raw_changes);
     $changesets = $diff->getChangesets();
     $changeset = reset($changesets);
     if (!$changeset) {
         // TODO: Refine this.
         return new Aphront404Response();
     }
     $repository = $drequest->getRepository();
     $changesets = array(0 => $changeset);
     $changeset_header = $this->buildChangesetHeader($drequest);
     $changeset_view = new DifferentialChangesetListView();
     $changeset_view->setChangesets($changesets);
     $changeset_view->setBackground(PHUIObjectBoxView::BLUE_PROPERTY);
     $changeset_view->setVisibleChangesets($changesets);
     $changeset_view->setRenderingReferences(array(0 => $drequest->generateURI(array('action' => 'rendering-ref'))));
     $raw_params = array('action' => 'browse', 'params' => array('view' => 'raw'));
     $right_uri = $drequest->generateURI($raw_params);
     $raw_params['params']['before'] = $drequest->getStableCommit();
     $left_uri = $drequest->generateURI($raw_params);
     $changeset_view->setRawFileURIs($left_uri, $right_uri);
     $changeset_view->setRenderURI($repository->getPathURI('diff/'));
     $changeset_view->setWhitespace(DifferentialChangesetParser::WHITESPACE_SHOW_ALL);
     $changeset_view->setUser($viewer);
     $changeset_view->setHeader($changeset_header);
     // TODO: This is pretty awkward, unify the CSS between Diffusion and
     // Differential better.
     require_celerity_resource('differential-core-view-css');
     $crumbs = $this->buildCrumbs(array('branch' => true, 'path' => true, 'view' => 'change'));
     $crumbs->setBorder(true);
     $links = $this->renderPathLinks($drequest, $mode = 'browse');
     $header = $this->buildHeader($drequest, $links);
     $view = id(new PHUITwoColumnView())->setHeader($header)->setMainColumn(array())->setFooter(array($changeset_view));
     return $this->newPage()->setTitle(array(basename($drequest->getPath()), $repository->getDisplayName()))->setCrumbs($crumbs)->appendChild(array($view));
 }
 public function handleRequest(AphrontRequest $request)
 {
     $response = $this->loadDiffusionContext();
     if ($response) {
         return $response;
     }
     $drequest = $this->getDiffusionRequest();
     $viewer = $request->getUser();
     if ($request->getStr('diff')) {
         return $this->buildRawDiffResponse($drequest);
     }
     $repository = $drequest->getRepository();
     $commit = id(new DiffusionCommitQuery())->setViewer($viewer)->withRepository($repository)->withIdentifiers(array($drequest->getCommit()))->needCommitData(true)->needAuditRequests(true)->executeOne();
     $crumbs = $this->buildCrumbs(array('commit' => true));
     $crumbs->setBorder(true);
     if (!$commit) {
         if (!$this->getCommitExists()) {
             return new Aphront404Response();
         }
         $error = id(new PHUIInfoView())->setTitle(pht('Commit Still Parsing'))->appendChild(pht('Failed to load the commit because the commit has not been ' . 'parsed yet.'));
         $title = pht('Commit Still Parsing');
         return $this->newPage()->setTitle($title)->setCrumbs($crumbs)->appendChild($error);
     }
     $audit_requests = $commit->getAudits();
     $this->auditAuthorityPHIDs = PhabricatorAuditCommentEditor::loadAuditPHIDsForUser($viewer);
     $commit_data = $commit->getCommitData();
     $is_foreign = $commit_data->getCommitDetail('foreign-svn-stub');
     $error_panel = null;
     if ($is_foreign) {
         $subpath = $commit_data->getCommitDetail('svn-subpath');
         $error_panel = new PHUIInfoView();
         $error_panel->setTitle(pht('Commit Not Tracked'));
         $error_panel->setSeverity(PHUIInfoView::SEVERITY_WARNING);
         $error_panel->appendChild(pht("This Diffusion repository is configured to track only one " . "subdirectory of the entire Subversion repository, and this commit " . "didn't affect the tracked subdirectory ('%s'), so no " . "information is available.", $subpath));
     } else {
         $engine = PhabricatorMarkupEngine::newDifferentialMarkupEngine();
         $engine->setConfig('viewer', $viewer);
         $commit_tag = $this->renderCommitHashTag($drequest);
         $header = id(new PHUIHeaderView())->setHeader(nonempty($commit->getSummary(), pht('Commit Detail')))->setHeaderIcon('fa-code-fork')->addTag($commit_tag);
         if ($commit->getAuditStatus()) {
             $icon = PhabricatorAuditCommitStatusConstants::getStatusIcon($commit->getAuditStatus());
             $color = PhabricatorAuditCommitStatusConstants::getStatusColor($commit->getAuditStatus());
             $status = PhabricatorAuditCommitStatusConstants::getStatusName($commit->getAuditStatus());
             $header->setStatus($icon, $color, $status);
         }
         $curtain = $this->buildCurtain($commit, $repository);
         $subheader = $this->buildSubheaderView($commit, $commit_data);
         $details = $this->buildPropertyListView($commit, $commit_data, $audit_requests);
         $message = $commit_data->getCommitMessage();
         $revision = $commit->getCommitIdentifier();
         $message = $this->linkBugtraq($message);
         $message = $engine->markupText($message);
         $detail_list = new PHUIPropertyListView();
         $detail_list->addTextContent(phutil_tag('div', array('class' => 'diffusion-commit-message phabricator-remarkup'), $message));
         if ($this->getCommitErrors()) {
             $error_panel = id(new PHUIInfoView())->appendChild($this->getCommitErrors())->setSeverity(PHUIInfoView::SEVERITY_WARNING);
         }
     }
     $timeline = $this->buildComments($commit);
     $hard_limit = 1000;
     if ($commit->isImported()) {
         $change_query = DiffusionPathChangeQuery::newFromDiffusionRequest($drequest);
         $change_query->setLimit($hard_limit + 1);
         $changes = $change_query->loadChanges();
     } else {
         $changes = array();
     }
     $was_limited = count($changes) > $hard_limit;
     if ($was_limited) {
         $changes = array_slice($changes, 0, $hard_limit);
     }
     $merge_table = $this->buildMergesTable($commit);
     $highlighted_audits = $commit->getAuthorityAudits($viewer, $this->auditAuthorityPHIDs);
     $count = count($changes);
     $bad_commit = null;
     if ($count == 0) {
         $bad_commit = queryfx_one(id(new PhabricatorRepository())->establishConnection('r'), 'SELECT * FROM %T WHERE fullCommitName = %s', PhabricatorRepository::TABLE_BADCOMMIT, $commit->getMonogram());
     }
     $show_changesets = false;
     $info_panel = null;
     $change_list = null;
     $change_table = null;
     if ($bad_commit) {
         $info_panel = $this->renderStatusMessage(pht('Bad Commit'), $bad_commit['description']);
     } else {
         if ($is_foreign) {
             // Don't render anything else.
         } else {
             if (!$commit->isImported()) {
                 $info_panel = $this->renderStatusMessage(pht('Still Importing...'), pht('This commit is still importing. Changes will be visible once ' . 'the import finishes.'));
             } else {
                 if (!count($changes)) {
                     $info_panel = $this->renderStatusMessage(pht('Empty Commit'), pht('This commit is empty and does not affect any paths.'));
                 } else {
                     if ($was_limited) {
                         $info_panel = $this->renderStatusMessage(pht('Enormous Commit'), pht('This commit is enormous, and affects more than %d files. ' . 'Changes are not shown.', $hard_limit));
                     } else {
                         if (!$this->getCommitExists()) {
                             $info_panel = $this->renderStatusMessage(pht('Commit No Longer Exists'), pht('This commit no longer exists in the repository.'));
                         } else {
                             $show_changesets = true;
                             // The user has clicked "Show All Changes", and we should show all the
                             // changes inline even if there are more than the soft limit.
                             $show_all_details = $request->getBool('show_all');
                             $change_header = id(new PHUIHeaderView())->setHeader(pht('Changes (%s)', new PhutilNumber($count)));
                             $warning_view = null;
                             if ($count > self::CHANGES_LIMIT && !$show_all_details) {
                                 $button = id(new PHUIButtonView())->setText(pht('Show All Changes'))->setHref('?show_all=true')->setTag('a')->setIcon('fa-files-o');
                                 $warning_view = id(new PHUIInfoView())->setSeverity(PHUIInfoView::SEVERITY_WARNING)->setTitle(pht('Very Large Commit'))->appendChild(pht('This commit is very large. Load each file individually.'));
                                 $change_header->addActionLink($button);
                             }
                             $changesets = DiffusionPathChange::convertToDifferentialChangesets($viewer, $changes);
                             // TODO: This table and panel shouldn't really be separate, but we need
                             // to clean up the "Load All Files" interaction first.
                             $change_table = $this->buildTableOfContents($changesets, $change_header, $warning_view);
                             $vcs = $repository->getVersionControlSystem();
                             switch ($vcs) {
                                 case PhabricatorRepositoryType::REPOSITORY_TYPE_SVN:
                                     $vcs_supports_directory_changes = true;
                                     break;
                                 case PhabricatorRepositoryType::REPOSITORY_TYPE_GIT:
                                 case PhabricatorRepositoryType::REPOSITORY_TYPE_MERCURIAL:
                                     $vcs_supports_directory_changes = false;
                                     break;
                                 default:
                                     throw new Exception(pht('Unknown VCS.'));
                             }
                             $references = array();
                             foreach ($changesets as $key => $changeset) {
                                 $file_type = $changeset->getFileType();
                                 if ($file_type == DifferentialChangeType::FILE_DIRECTORY) {
                                     if (!$vcs_supports_directory_changes) {
                                         unset($changesets[$key]);
                                         continue;
                                     }
                                 }
                                 $references[$key] = $drequest->generateURI(array('action' => 'rendering-ref', 'path' => $changeset->getFilename()));
                             }
                             // TODO: Some parts of the views still rely on properties of the
                             // DifferentialChangeset. Make the objects ephemeral to make sure we don't
                             // accidentally save them, and then set their ID to the appropriate ID for
                             // this application (the path IDs).
                             $path_ids = array_flip(mpull($changes, 'getPath'));
                             foreach ($changesets as $changeset) {
                                 $changeset->makeEphemeral();
                                 $changeset->setID($path_ids[$changeset->getFilename()]);
                             }
                             if ($count <= self::CHANGES_LIMIT || $show_all_details) {
                                 $visible_changesets = $changesets;
                             } else {
                                 $visible_changesets = array();
                                 $inlines = PhabricatorAuditInlineComment::loadDraftAndPublishedComments($viewer, $commit->getPHID());
                                 $path_ids = mpull($inlines, null, 'getPathID');
                                 foreach ($changesets as $key => $changeset) {
                                     if (array_key_exists($changeset->getID(), $path_ids)) {
                                         $visible_changesets[$key] = $changeset;
                                     }
                                 }
                             }
                             $change_list_title = $commit->getDisplayName();
                             $change_list = new DifferentialChangesetListView();
                             $change_list->setTitle($change_list_title);
                             $change_list->setChangesets($changesets);
                             $change_list->setVisibleChangesets($visible_changesets);
                             $change_list->setRenderingReferences($references);
                             $change_list->setRenderURI($repository->getPathURI('diff/'));
                             $change_list->setRepository($repository);
                             $change_list->setUser($viewer);
                             $change_list->setBackground(PHUIObjectBoxView::BLUE_PROPERTY);
                             // TODO: Try to setBranch() to something reasonable here?
                             $change_list->setStandaloneURI($repository->getPathURI('diff/'));
                             $change_list->setRawFileURIs(null, $repository->getPathURI('diff/?view=r'));
                             $change_list->setInlineCommentControllerURI('/diffusion/inline/edit/' . phutil_escape_uri($commit->getPHID()) . '/');
                         }
                     }
                 }
             }
         }
     }
     $add_comment = $this->renderAddCommentPanel($commit, $audit_requests);
     $filetree_on = $viewer->compareUserSetting(PhabricatorShowFiletreeSetting::SETTINGKEY, PhabricatorShowFiletreeSetting::VALUE_ENABLE_FILETREE);
     $pref_collapse = PhabricatorFiletreeVisibleSetting::SETTINGKEY;
     $collapsed = $viewer->getUserSetting($pref_collapse);
     $nav = null;
     if ($show_changesets && $filetree_on) {
         $nav = id(new DifferentialChangesetFileTreeSideNavBuilder())->setTitle($commit->getDisplayName())->setBaseURI(new PhutilURI($commit->getURI()))->build($changesets)->setCrumbs($crumbs)->setCollapsed((bool) $collapsed);
     }
     $view = id(new PHUITwoColumnView())->setHeader($header)->setSubheader($subheader)->setMainColumn(array($error_panel, $timeline, $merge_table, $info_panel))->setFooter(array($change_table, $change_list, $add_comment))->addPropertySection(pht('Description'), $detail_list)->addPropertySection(pht('Details'), $details)->setCurtain($curtain);
     $page = $this->newPage()->setTitle($commit->getDisplayName())->setCrumbs($crumbs)->setPageObjectPHIDS(array($commit->getPHID()))->appendChild(array($view));
     if ($nav) {
         $page->setNavigation($nav);
     }
     return $page;
 }