diff --git a/src/applications/diffusion/controller/DiffusionCommitController.php b/src/applications/diffusion/controller/DiffusionCommitController.php
index 890c512870..69c40b044f 100644
--- a/src/applications/diffusion/controller/DiffusionCommitController.php
+++ b/src/applications/diffusion/controller/DiffusionCommitController.php
@@ -1,1287 +1,1286 @@
 <?php
 
 final class DiffusionCommitController extends DiffusionController {
 
   const CHANGES_LIMIT = 100;
 
   private $auditAuthorityPHIDs;
   private $highlightedAudits;
 
   private $commitParents;
   private $commitRefs;
   private $commitMerges;
   private $commitErrors;
   private $commitExists;
 
   public function shouldAllowPublic() {
     return true;
   }
 
   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.'));
 
-      return $this->buildApplicationPage(
-        array(
-          $crumbs,
-          $error,
-        ),
-        array(
-          'title' => pht('Commit Still Parsing'),
-        ));
+      $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(
         // TODO: Implement this, somewhat tricky if there's an octopus merge
         // or whatever?
         null,
         $repository->getPathURI('diff/?view=r'));
 
       $change_list->setInlineCommentControllerURI(
         '/diffusion/inline/edit/'.phutil_escape_uri($commit->getPHID()).'/');
 
     }
 
     $add_comment = $this->renderAddCommentPanel($commit, $audit_requests);
 
     $prefs = $viewer->loadPreferences();
     $pref_filetree = PhabricatorUserPreferences::PREFERENCE_DIFF_FILETREE;
     $pref_collapse = PhabricatorUserPreferences::PREFERENCE_NAV_COLLAPSED;
     $show_filetree = $prefs->getPreference($pref_filetree);
     $collapsed = $prefs->getPreference($pref_collapse);
 
     $nav = null;
     if ($show_changesets && $show_filetree) {
       $nav = id(new DifferentialChangesetFileTreeSideNavBuilder())
         ->setTitle($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;
 
   }
 
   private function buildPropertyListView(
     PhabricatorRepositoryCommit $commit,
     PhabricatorRepositoryCommitData $data,
     array $audit_requests) {
 
     $viewer = $this->getViewer();
     $commit_phid = $commit->getPHID();
     $drequest = $this->getDiffusionRequest();
     $repository = $drequest->getRepository();
 
     $view = id(new PHUIPropertyListView())
       ->setUser($this->getRequest()->getUser());
 
     $edge_query = id(new PhabricatorEdgeQuery())
       ->withSourcePHIDs(array($commit_phid))
       ->withEdgeTypes(array(
         DiffusionCommitHasTaskEdgeType::EDGECONST,
         DiffusionCommitHasRevisionEdgeType::EDGECONST,
         DiffusionCommitRevertsCommitEdgeType::EDGECONST,
         DiffusionCommitRevertedByCommitEdgeType::EDGECONST,
       ));
 
     $edges = $edge_query->execute();
 
     $task_phids = array_keys(
       $edges[$commit_phid][DiffusionCommitHasTaskEdgeType::EDGECONST]);
     $revision_phid = key(
       $edges[$commit_phid][DiffusionCommitHasRevisionEdgeType::EDGECONST]);
 
     $reverts_phids = array_keys(
       $edges[$commit_phid][DiffusionCommitRevertsCommitEdgeType::EDGECONST]);
     $reverted_by_phids = array_keys(
       $edges[$commit_phid][DiffusionCommitRevertedByCommitEdgeType::EDGECONST]);
 
     $phids = $edge_query->getDestinationPHIDs(array($commit_phid));
 
     if ($data->getCommitDetail('authorPHID')) {
       $phids[] = $data->getCommitDetail('authorPHID');
     }
     if ($data->getCommitDetail('reviewerPHID')) {
       $phids[] = $data->getCommitDetail('reviewerPHID');
     }
     if ($data->getCommitDetail('committerPHID')) {
       $phids[] = $data->getCommitDetail('committerPHID');
     }
 
     // NOTE: We should never normally have more than a single push log, but
     // it can occur naturally if a commit is pushed, then the branch it was
     // on is deleted, then the commit is pushed again (or through other similar
     // chains of events). This should be rare, but does not indicate a bug
     // or data issue.
 
     // NOTE: We never query push logs in SVN because the commiter is always
     // the pusher and the commit time is always the push time; the push log
     // is redundant and we save a query by skipping it.
 
     $push_logs = array();
     if ($repository->isHosted() && !$repository->isSVN()) {
       $push_logs = id(new PhabricatorRepositoryPushLogQuery())
         ->setViewer($viewer)
         ->withRepositoryPHIDs(array($repository->getPHID()))
         ->withNewRefs(array($commit->getCommitIdentifier()))
         ->withRefTypes(array(PhabricatorRepositoryPushLog::REFTYPE_COMMIT))
         ->execute();
       foreach ($push_logs as $log) {
         $phids[] = $log->getPusherPHID();
       }
     }
 
     $handles = array();
     if ($phids) {
       $handles = $this->loadViewerHandles($phids);
     }
 
     $props = array();
 
     if ($audit_requests) {
       $user_requests = array();
       $other_requests = array();
       foreach ($audit_requests as $audit_request) {
         if ($audit_request->isUser()) {
           $user_requests[] = $audit_request;
         } else {
           $other_requests[] = $audit_request;
         }
       }
 
       if ($user_requests) {
         $view->addProperty(
           pht('Auditors'),
           $this->renderAuditStatusView($user_requests));
       }
 
       if ($other_requests) {
         $view->addProperty(
           pht('Project/Package Auditors'),
           $this->renderAuditStatusView($other_requests));
       }
     }
 
     $author_phid = $data->getCommitDetail('authorPHID');
     $author_name = $data->getAuthorName();
     $author_epoch = $data->getCommitDetail('authorEpoch');
 
     $committed_info = id(new PHUIStatusItemView())
       ->setNote(phabricator_datetime($commit->getEpoch(), $viewer));
 
     $committer_phid = $data->getCommitDetail('committerPHID');
     $committer_name = $data->getCommitDetail('committer');
     if ($committer_phid) {
       $committed_info->setTarget($handles[$committer_phid]->renderLink());
     } else if (strlen($committer_name)) {
       $committed_info->setTarget($committer_name);
     } else if ($author_phid) {
       $committed_info->setTarget($handles[$author_phid]->renderLink());
     } else if (strlen($author_name)) {
       $committed_info->setTarget($author_name);
     }
 
     $committed_list = new PHUIStatusListView();
     $committed_list->addItem($committed_info);
     $view->addProperty(
       pht('Committed'),
       $committed_list);
 
     if ($push_logs) {
       $pushed_list = new PHUIStatusListView();
 
       foreach ($push_logs as $push_log) {
         $pushed_item = id(new PHUIStatusItemView())
           ->setTarget($handles[$push_log->getPusherPHID()]->renderLink())
           ->setNote(phabricator_datetime($push_log->getEpoch(), $viewer));
         $pushed_list->addItem($pushed_item);
       }
 
       $view->addProperty(
         pht('Pushed'),
         $pushed_list);
     }
 
     $reviewer_phid = $data->getCommitDetail('reviewerPHID');
     if ($reviewer_phid) {
       $view->addProperty(
         pht('Reviewer'),
         $handles[$reviewer_phid]->renderLink());
     }
 
     if ($revision_phid) {
       $view->addProperty(
         pht('Differential Revision'),
         $handles[$revision_phid]->renderLink());
     }
 
     $parents = $this->getCommitParents();
     if ($parents) {
       $view->addProperty(
         pht('Parents'),
         $viewer->renderHandleList(mpull($parents, 'getPHID')));
     }
 
     if ($this->getCommitExists()) {
       $view->addProperty(
         pht('Branches'),
         phutil_tag(
         'span',
         array(
           'id' => 'commit-branches',
         ),
         pht('Unknown')));
 
       $view->addProperty(
         pht('Tags'),
         phutil_tag(
         'span',
         array(
           'id' => 'commit-tags',
         ),
         pht('Unknown')));
 
       $identifier = $commit->getCommitIdentifier();
       $root = $repository->getPathURI("commit/{$identifier}");
       Javelin::initBehavior(
         'diffusion-commit-branches',
         array(
           $root.'/branches/' => 'commit-branches',
           $root.'/tags/' => 'commit-tags',
         ));
     }
 
     $refs = $this->getCommitRefs();
     if ($refs) {
       $ref_links = array();
       foreach ($refs as $ref_data) {
         $ref_links[] = phutil_tag(
           'a',
           array(
             'href' => $ref_data['href'],
           ),
           $ref_data['ref']);
       }
       $view->addProperty(
         pht('References'),
         phutil_implode_html(', ', $ref_links));
     }
 
     if ($reverts_phids) {
       $view->addProperty(
         pht('Reverts'),
         $viewer->renderHandleList($reverts_phids));
     }
 
     if ($reverted_by_phids) {
       $view->addProperty(
         pht('Reverted By'),
         $viewer->renderHandleList($reverted_by_phids));
     }
 
     if ($task_phids) {
       $task_list = array();
       foreach ($task_phids as $phid) {
         $task_list[] = $handles[$phid]->renderLink();
       }
       $task_list = phutil_implode_html(phutil_tag('br'), $task_list);
       $view->addProperty(
         pht('Tasks'),
         $task_list);
     }
 
     return $view;
   }
 
   private function buildSubheaderView(
     PhabricatorRepositoryCommit $commit,
     PhabricatorRepositoryCommitData $data) {
 
     $viewer = $this->getViewer();
     $drequest = $this->getDiffusionRequest();
     $repository = $drequest->getRepository();
 
     if ($repository->isSVN()) {
       return null;
     }
 
     $author_phid = $data->getCommitDetail('authorPHID');
     $author_name = $data->getAuthorName();
     $author_epoch = $data->getCommitDetail('authorEpoch');
     $date = null;
     if ($author_epoch !== null) {
       $date = phabricator_datetime($author_epoch, $viewer);
     }
 
     if ($author_phid) {
       $handles = $viewer->loadHandles(array($author_phid));
       $image_uri = $handles[$author_phid]->getImageURI();
       $image_href = $handles[$author_phid]->getURI();
       $author = $handles[$author_phid]->renderLink();
     } else if (strlen($author_name)) {
       $author = $author_name;
       $image_uri = null;
       $image_href = null;
     } else {
       return null;
     }
 
     $author = phutil_tag('strong', array(), $author);
     if ($date) {
       $content = pht('Authored by %s on %s.', $author, $date);
     } else {
       $content = pht('Authored by %s.', $author);
     }
 
     return id(new PHUIHeadThingView())
       ->setImage($image_uri)
       ->setImageHref($image_href)
       ->setContent($content);
 
   }
 
 
   private function buildComments(PhabricatorRepositoryCommit $commit) {
     $timeline = $this->buildTransactionTimeline(
       $commit,
       new PhabricatorAuditTransactionQuery());
     $commit->willRenderTimeline($timeline, $this->getRequest());
     return $timeline;
   }
 
   private function renderAddCommentPanel(
     PhabricatorRepositoryCommit $commit,
     array $audit_requests) {
     assert_instances_of($audit_requests, 'PhabricatorRepositoryAuditRequest');
 
     $request = $this->getRequest();
     $viewer = $request->getUser();
 
     if (!$viewer->isLoggedIn()) {
       return id(new PhabricatorApplicationTransactionCommentView())
         ->setUser($viewer)
         ->setRequestURI($request->getRequestURI());
     }
 
     $is_serious = PhabricatorEnv::getEnvConfig('phabricator.serious-business');
 
     $pane_id = celerity_generate_unique_node_id();
     Javelin::initBehavior(
       'differential-keyboard-navigation',
       array(
         'haunt' => $pane_id,
       ));
 
     $draft = id(new PhabricatorDraft())->loadOneWhere(
       'authorPHID = %s AND draftKey = %s',
       $viewer->getPHID(),
       'diffusion-audit-'.$commit->getID());
     if ($draft) {
       $draft = $draft->getDraft();
     } else {
       $draft = null;
     }
 
     $actions = $this->getAuditActions($commit, $audit_requests);
 
     $mailable_source = new PhabricatorMetaMTAMailableDatasource();
     $auditor_source = new DiffusionAuditorDatasource();
 
     $form = id(new AphrontFormView())
       ->setUser($viewer)
       ->setAction('/audit/addcomment/')
       ->addHiddenInput('commit', $commit->getPHID())
       ->appendChild(
         id(new AphrontFormSelectControl())
           ->setLabel(pht('Action'))
           ->setName('action')
           ->setID('audit-action')
           ->setOptions($actions))
       ->appendControl(
         id(new AphrontFormTokenizerControl())
           ->setLabel(pht('Add Auditors'))
           ->setName('auditors')
           ->setControlID('add-auditors')
           ->setControlStyle('display: none')
           ->setID('add-auditors-tokenizer')
           ->setDisableBehavior(true)
           ->setDatasource($auditor_source))
       ->appendControl(
         id(new AphrontFormTokenizerControl())
           ->setLabel(pht('Add CCs'))
           ->setName('ccs')
           ->setControlID('add-ccs')
           ->setControlStyle('display: none')
           ->setID('add-ccs-tokenizer')
           ->setDisableBehavior(true)
           ->setDatasource($mailable_source))
       ->appendChild(
         id(new PhabricatorRemarkupControl())
           ->setLabel(pht('Comments'))
           ->setName('content')
           ->setValue($draft)
           ->setID('audit-content')
           ->setUser($viewer))
       ->appendChild(
         id(new AphrontFormSubmitControl())
           ->setValue(pht('Submit')));
 
     $header = new PHUIHeaderView();
     $header->setHeader(
       $is_serious ? pht('Audit Commit') : pht('Creative Accounting'));
 
     Javelin::initBehavior(
       'differential-add-reviewers-and-ccs',
       array(
         'dynamic' => array(
           'add-auditors-tokenizer' => array(
             'actions' => array('add_auditors' => 1),
             'src' => $auditor_source->getDatasourceURI(),
             'row' => 'add-auditors',
             'placeholder' => $auditor_source->getPlaceholderText(),
           ),
           'add-ccs-tokenizer' => array(
             'actions' => array('add_ccs' => 1),
             'src' => $mailable_source->getDatasourceURI(),
             'row' => 'add-ccs',
             'placeholder' => $mailable_source->getPlaceholderText(),
           ),
         ),
         'select' => 'audit-action',
       ));
 
     Javelin::initBehavior('differential-feedback-preview', array(
       'uri'       => '/audit/preview/'.$commit->getID().'/',
       'preview'   => 'audit-preview',
       'content'   => 'audit-content',
       'action'    => 'audit-action',
       'previewTokenizers' => array(
         'auditors' => 'add-auditors-tokenizer',
         'ccs'      => 'add-ccs-tokenizer',
       ),
       'inline'     => 'inline-comment-preview',
       'inlineuri'  => '/diffusion/inline/preview/'.$commit->getPHID().'/',
     ));
 
     $loading = phutil_tag_div(
       'aphront-panel-preview-loading-text',
       pht('Loading preview...'));
 
     $preview_panel = phutil_tag_div(
       'aphront-panel-preview aphront-panel-flush',
       array(
         phutil_tag('div', array('id' => 'audit-preview'), $loading),
         phutil_tag('div', array('id' => 'inline-comment-preview')),
       ));
 
     // TODO: This is pretty awkward, unify the CSS between Diffusion and
     // Differential better.
     require_celerity_resource('differential-core-view-css');
 
     $anchor = id(new PhabricatorAnchorView())
       ->setAnchorName('comment')
       ->setNavigationMarker(true)
       ->render();
 
     $comment_box = id(new PHUIObjectBoxView())
       ->setHeader($header)
       ->appendChild($form);
 
     return phutil_tag(
       'div',
       array(
         'id' => $pane_id,
       ),
       phutil_tag_div(
         'differential-add-comment-panel',
         array($anchor, $comment_box, $preview_panel)));
   }
 
   /**
    * Return a map of available audit actions for rendering into a <select />.
    * This shows the user valid actions, and does not show nonsense/invalid
    * actions (like closing an already-closed commit, or resigning from a commit
    * you have no association with).
    */
   private function getAuditActions(
     PhabricatorRepositoryCommit $commit,
     array $audit_requests) {
     assert_instances_of($audit_requests, 'PhabricatorRepositoryAuditRequest');
     $viewer = $this->getViewer();
 
     $user_is_author = ($commit->getAuthorPHID() == $viewer->getPHID());
 
     $user_request = null;
     foreach ($audit_requests as $audit_request) {
       if ($audit_request->getAuditorPHID() == $viewer->getPHID()) {
         $user_request = $audit_request;
         break;
       }
     }
 
     $actions = array();
     $actions[PhabricatorAuditActionConstants::COMMENT] = true;
 
     // We allow you to accept your own commits. A use case here is that you
     // notice an issue with your own commit and "Raise Concern" as an indicator
     // to other auditors that you're on top of the issue, then later resolve it
     // and "Accept". You can not accept on behalf of projects or packages,
     // however.
     $actions[PhabricatorAuditActionConstants::ACCEPT]  = true;
     $actions[PhabricatorAuditActionConstants::CONCERN] = true;
 
     // To resign, a user must have authority on some request and not be the
     // commit's author.
     if (!$user_is_author) {
       $may_resign = false;
 
       $authority_map = array_fill_keys($this->auditAuthorityPHIDs, true);
       foreach ($audit_requests as $request) {
         if (empty($authority_map[$request->getAuditorPHID()])) {
           continue;
         }
         $may_resign = true;
         break;
       }
 
       // If the user has already resigned, don't show "Resign...".
       $status_resigned = PhabricatorAuditStatusConstants::RESIGNED;
       if ($user_request) {
         if ($user_request->getAuditStatus() == $status_resigned) {
           $may_resign = false;
         }
       }
 
       if ($may_resign) {
         $actions[PhabricatorAuditActionConstants::RESIGN] = true;
       }
     }
 
     $status_concern = PhabricatorAuditCommitStatusConstants::CONCERN_RAISED;
     $concern_raised = ($commit->getAuditStatus() == $status_concern);
     $can_close_option = PhabricatorEnv::getEnvConfig(
       'audit.can-author-close-audit');
     if ($can_close_option && $user_is_author && $concern_raised) {
       $actions[PhabricatorAuditActionConstants::CLOSE] = true;
     }
 
     $actions[PhabricatorAuditActionConstants::ADD_AUDITORS] = true;
     $actions[PhabricatorAuditActionConstants::ADD_CCS] = true;
 
     foreach ($actions as $constant => $ignored) {
       $actions[$constant] =
         PhabricatorAuditActionConstants::getActionName($constant);
     }
 
     return $actions;
   }
 
   private function buildMergesTable(PhabricatorRepositoryCommit $commit) {
     $viewer = $this->getViewer();
     $drequest = $this->getDiffusionRequest();
     $repository = $drequest->getRepository();
 
     $merges = $this->getCommitMerges();
     if (!$merges) {
       return null;
     }
 
     $limit = $this->getMergeDisplayLimit();
 
     $caption = null;
     if (count($merges) > $limit) {
       $merges = array_slice($merges, 0, $limit);
       $caption = new PHUIInfoView();
       $caption->setSeverity(PHUIInfoView::SEVERITY_NOTICE);
       $caption->appendChild(
         pht(
           'This commit merges a very large number of changes. '.
           'Only the first %s are shown.',
           new PhutilNumber($limit)));
     }
 
     $history_table = id(new DiffusionHistoryTableView())
       ->setUser($viewer)
       ->setDiffusionRequest($drequest)
       ->setHistory($merges);
 
     $history_table->loadRevisions();
 
     $panel = id(new PHUIObjectBoxView())
       ->setHeaderText(pht('Merged Changes'))
       ->setBackground(PHUIObjectBoxView::BLUE_PROPERTY)
       ->setTable($history_table);
     if ($caption) {
       $panel->setInfoView($caption);
     }
 
     return $panel;
   }
 
   private function buildCurtain(
     PhabricatorRepositoryCommit $commit,
     PhabricatorRepository $repository) {
 
     $request = $this->getRequest();
     $viewer = $this->getViewer();
     $curtain = $this->newCurtainView($commit);
 
     $can_edit = PhabricatorPolicyFilter::hasCapability(
       $viewer,
       $commit,
       PhabricatorPolicyCapability::CAN_EDIT);
 
     $identifier = $commit->getCommitIdentifier();
     $uri = $repository->getPathURI("commit/{$identifier}/edit/");
 
     $action = id(new PhabricatorActionView())
       ->setName(pht('Edit Commit'))
       ->setHref($uri)
       ->setIcon('fa-pencil')
       ->setDisabled(!$can_edit)
       ->setWorkflow(!$can_edit);
     $curtain->addAction($action);
 
     require_celerity_resource('phabricator-object-selector-css');
     require_celerity_resource('javelin-behavior-phabricator-object-selector');
 
     $maniphest = 'PhabricatorManiphestApplication';
     if (PhabricatorApplication::isClassInstalled($maniphest)) {
       $action = id(new PhabricatorActionView())
         ->setName(pht('Edit Maniphest Tasks'))
         ->setIcon('fa-anchor')
         ->setHref('/search/attach/'.$commit->getPHID().'/TASK/edge/')
         ->setWorkflow(true)
         ->setDisabled(!$can_edit);
       $curtain->addAction($action);
     }
 
     $action = id(new PhabricatorActionView())
       ->setName(pht('Download Raw Diff'))
       ->setHref($request->getRequestURI()->alter('diff', true))
       ->setIcon('fa-download');
     $curtain->addAction($action);
 
     return $curtain;
   }
 
   private function buildRawDiffResponse(DiffusionRequest $drequest) {
     $raw_diff = $this->callConduitWithDiffusionRequest(
       'diffusion.rawdiffquery',
       array(
         'commit' => $drequest->getCommit(),
         'path' => $drequest->getPath(),
       ));
 
     $file = PhabricatorFile::buildFromFileDataOrHash(
       $raw_diff,
       array(
         'name' => $drequest->getCommit().'.diff',
         'ttl' => (60 * 60 * 24),
         'viewPolicy' => PhabricatorPolicies::POLICY_NOONE,
       ));
 
     $unguarded = AphrontWriteGuard::beginScopedUnguardedWrites();
       $file->attachToObject($drequest->getRepository()->getPHID());
     unset($unguarded);
 
     return $file->getRedirectResponse();
   }
 
   private function renderAuditStatusView(array $audit_requests) {
     assert_instances_of($audit_requests, 'PhabricatorRepositoryAuditRequest');
     $viewer = $this->getViewer();
 
     $authority_map = array_fill_keys($this->auditAuthorityPHIDs, true);
 
     $view = new PHUIStatusListView();
     foreach ($audit_requests as $request) {
       $code = $request->getAuditStatus();
       $item = new PHUIStatusItemView();
       $item->setIcon(
         PhabricatorAuditStatusConstants::getStatusIcon($code),
         PhabricatorAuditStatusConstants::getStatusColor($code),
         PhabricatorAuditStatusConstants::getStatusName($code));
 
       $note = array();
       foreach ($request->getAuditReasons() as $reason) {
         $note[] = phutil_tag('div', array(), $reason);
       }
       $item->setNote($note);
 
       $auditor_phid = $request->getAuditorPHID();
       $target = $viewer->renderHandle($auditor_phid);
       $item->setTarget($target);
 
       if (isset($authority_map[$auditor_phid])) {
         $item->setHighlighted(true);
       }
 
       $view->addItem($item);
     }
 
     return $view;
   }
 
   private function linkBugtraq($corpus) {
     $url = PhabricatorEnv::getEnvConfig('bugtraq.url');
     if (!strlen($url)) {
       return $corpus;
     }
 
     $regexes = PhabricatorEnv::getEnvConfig('bugtraq.logregex');
     if (!$regexes) {
       return $corpus;
     }
 
     $parser = id(new PhutilBugtraqParser())
       ->setBugtraqPattern("[[ {$url} | %BUGID% ]]")
       ->setBugtraqCaptureExpression(array_shift($regexes));
 
     $select = array_shift($regexes);
     if ($select) {
       $parser->setBugtraqSelectExpression($select);
     }
 
     return $parser->processCorpus($corpus);
   }
 
   private function buildTableOfContents(
     array $changesets,
     $header,
     $info_view) {
 
     $drequest = $this->getDiffusionRequest();
     $viewer = $this->getViewer();
 
     $toc_view = id(new PHUIDiffTableOfContentsListView())
       ->setUser($viewer)
       ->setHeader($header)
       ->setBackground(PHUIObjectBoxView::BLUE_PROPERTY);
 
     if ($info_view) {
       $toc_view->setInfoView($info_view);
     }
 
     // TODO: This is hacky, we just want access to the linkX() methods on
     // DiffusionView.
     $diffusion_view = id(new DiffusionEmptyResultView())
       ->setDiffusionRequest($drequest);
 
     $have_owners = PhabricatorApplication::isClassInstalledForViewer(
       'PhabricatorOwnersApplication',
       $viewer);
 
     if (!$changesets) {
       $have_owners = false;
     }
 
     if ($have_owners) {
       if ($viewer->getPHID()) {
         $packages = id(new PhabricatorOwnersPackageQuery())
           ->setViewer($viewer)
           ->withStatuses(array(PhabricatorOwnersPackage::STATUS_ACTIVE))
           ->withAuthorityPHIDs(array($viewer->getPHID()))
           ->execute();
         $toc_view->setAuthorityPackages($packages);
       }
 
       $repository = $drequest->getRepository();
       $repository_phid = $repository->getPHID();
 
       $control_query = id(new PhabricatorOwnersPackageQuery())
         ->setViewer($viewer)
         ->withStatuses(array(PhabricatorOwnersPackage::STATUS_ACTIVE))
         ->withControl($repository_phid, mpull($changesets, 'getFilename'));
       $control_query->execute();
     }
 
     foreach ($changesets as $changeset_id => $changeset) {
       $path = $changeset->getFilename();
       $anchor = substr(md5($path), 0, 8);
 
       $history_link = $diffusion_view->linkHistory($path);
       $browse_link = $diffusion_view->linkBrowse(
         $path,
         array(
           'type' => $changeset->getFileType(),
         ));
 
       $item = id(new PHUIDiffTableOfContentsItemView())
         ->setChangeset($changeset)
         ->setAnchor($anchor)
         ->setContext(
           array(
             $history_link,
             ' ',
             $browse_link,
           ));
 
       if ($have_owners) {
         $packages = $control_query->getControllingPackagesForPath(
           $repository_phid,
           $changeset->getFilename());
         $item->setPackages($packages);
       }
 
       $toc_view->addItem($item);
     }
 
     return $toc_view;
   }
 
   private function loadCommitState() {
     $viewer = $this->getViewer();
     $drequest = $this->getDiffusionRequest();
     $repository = $drequest->getRepository();
     $commit = $drequest->getCommit();
 
     // TODO: We could use futures here and resolve these calls in parallel.
 
     $exceptions = array();
 
     try {
       $parent_refs = $this->callConduitWithDiffusionRequest(
         'diffusion.commitparentsquery',
         array(
           'commit' => $commit,
         ));
 
       if ($parent_refs) {
         $parents = id(new DiffusionCommitQuery())
           ->setViewer($viewer)
           ->withRepository($repository)
           ->withIdentifiers($parent_refs)
           ->execute();
       } else {
         $parents = array();
       }
 
       $this->commitParents = $parents;
     } catch (Exception $ex) {
       $this->commitParents = false;
       $exceptions[] = $ex;
     }
 
     $merge_limit = $this->getMergeDisplayLimit();
 
     try {
       if ($repository->isSVN()) {
         $this->commitMerges = array();
       } else {
         $merges = $this->callConduitWithDiffusionRequest(
           'diffusion.mergedcommitsquery',
           array(
             'commit' => $commit,
             'limit' => $merge_limit + 1,
           ));
         $this->commitMerges = DiffusionPathChange::newFromConduit($merges);
       }
     } catch (Exception $ex) {
       $this->commitMerges = false;
       $exceptions[] = $ex;
     }
 
 
     try {
       if ($repository->isGit()) {
         $refs = $this->callConduitWithDiffusionRequest(
           'diffusion.refsquery',
           array(
             'commit' => $commit,
           ));
       } else {
         $refs = array();
       }
 
       $this->commitRefs = $refs;
     } catch (Exception $ex) {
       $this->commitRefs = false;
       $exceptions[] = $ex;
     }
 
     if ($exceptions) {
       $exists = $this->callConduitWithDiffusionRequest(
         'diffusion.existsquery',
         array(
           'commit' => $commit,
         ));
 
       if ($exists) {
         $this->commitExists = true;
         foreach ($exceptions as $exception) {
           $this->commitErrors[] = $exception->getMessage();
         }
       } else {
         $this->commitExists = false;
         $this->commitErrors[] = pht(
           'This commit no longer exists in the repository. It may have '.
           'been part of a branch which was deleted.');
       }
     } else {
       $this->commitExists = true;
       $this->commitErrors = array();
     }
   }
 
   private function getMergeDisplayLimit() {
     return 50;
   }
 
   private function getCommitExists() {
     if ($this->commitExists === null) {
       $this->loadCommitState();
     }
 
     return $this->commitExists;
   }
 
   private function getCommitParents() {
     if ($this->commitParents === null) {
       $this->loadCommitState();
     }
 
     return $this->commitParents;
   }
 
   private function getCommitRefs() {
     if ($this->commitRefs === null) {
       $this->loadCommitState();
     }
 
     return $this->commitRefs;
   }
 
   private function getCommitMerges() {
     if ($this->commitMerges === null) {
       $this->loadCommitState();
     }
 
     return $this->commitMerges;
   }
 
   private function getCommitErrors() {
     if ($this->commitErrors === null) {
       $this->loadCommitState();
     }
 
     return $this->commitErrors;
   }
 
 
 }