Require a viewer for Remarkup rendering

Summary:
Provide a viewer to all remarkup engines.

This fixes commit summaries in Diffusion, which were failing to link because they didn't have a user and thus couldn't see/load `D123`, e.g.

Test Plan: Grepped for engine creation.

Reviewers: vrana

Reviewed By: vrana

CC: aran, edward

Maniphest Tasks: T603

Differential Revision: https://secure.phabricator.com/D5152

src/applications/config/controller/PhabricatorConfigEditController.php

@@ -130,6 +130,7 @@ final class PhabricatorConfigEditController
     }
 
     $engine = new PhabricatorMarkupEngine();
+    $engine->setViewer($user);
     $engine->addObject($option, 'description');
     $engine->process();
     $description = phutil_tag(

src/applications/differential/__tests__/DifferentialParseRenderTestCase.php

@@ -43,6 +43,7 @@ final class DifferentialParseRenderTestCase extends PhabricatorTestCase {
     $changeset = head($diff->getChangesets());
 
     $engine = new PhabricatorMarkupEngine();
+    $engine->setViewer(new PhabricatorUser());
 
     $cparser = new DifferentialChangesetParser();
     $cparser->setDisableCache(true);

src/applications/differential/field/specification/DifferentialBlameRevisionFieldSpecification.php

@@ -49,6 +49,7 @@ final class DifferentialBlameRevisionFieldSpecification
       return null;
     }
     $engine = PhabricatorMarkupEngine::newDifferentialMarkupEngine();
+    $engine->setConfig('viewer', $this->getUser());
     return $engine->markupText($this->value);
   }
 

src/applications/differential/field/specification/DifferentialUnitFieldSpecification.php

@@ -116,6 +116,7 @@ final class DifferentialUnitFieldSpecification
             $userdata = str_replace("\000", '', $userdata);
           }
           $engine = PhabricatorMarkupEngine::newDifferentialMarkupEngine();
+          $engine->setConfig('viewer', $this->getUser());
           $userdata = $engine->markupText($userdata);
           $rows[] = array(
             'style' => 'details',

src/applications/differential/remarkup/DifferentialRemarkupRule.php

@@ -12,11 +12,6 @@ final class DifferentialRemarkupRule
 
   protected function loadObjects(array $ids) {
     $viewer = $this->getEngine()->getConfig('viewer');
-
-    if (!$viewer) {
-      return array();
-    }
-
     return id(new DifferentialRevisionQuery())
       ->setViewer($viewer)
       ->withIDs($ids)

src/applications/diffusion/controller/DiffusionBrowseController.php

@@ -107,6 +107,7 @@ final class DiffusionBrowseController extends DiffusionController {
 
   private function markupText($text) {
     $engine = PhabricatorMarkupEngine::newDiffusionMarkupEngine();
+    $engine->setConfig('viewer', $this->getRequest()->getUser());
     $text = $engine->markupText($text);
 
     $text = phutil_tag(

src/applications/diffusion/controller/DiffusionCommitController.php

@@ -67,6 +67,7 @@ final class DiffusionCommitController extends DiffusionController {
       $content[] = $top_anchor;
     } else {
       $engine = PhabricatorMarkupEngine::newDifferentialMarkupEngine();
+      $engine->setConfig('viewer', $user);
 
       require_celerity_resource('diffusion-commit-view-css');
       require_celerity_resource('phabricator-remarkup-css');

src/applications/diffusion/query/browse/DiffusionBrowseQuery.php

@@ -137,6 +137,7 @@ abstract class DiffusionBrowseQuery {
     } else {
       // Markup extensionless files as remarkup so we get links and such.
       $engine = PhabricatorMarkupEngine::newDiffusionMarkupEngine();
+      $engine->setConfig('viewer', $this->getViewer());
       $readme_content = $engine->markupText($readme_content);
 
       $class = 'phabricator-remarkup';

src/applications/diffusion/remarkup/DiffusionRemarkupRule.php

@@ -23,10 +23,6 @@ final class DiffusionRemarkupRule
     $viewer = $this->getEngine()->getConfig('viewer');
     $min_qualified = PhabricatorRepository::MINIMUM_QUALIFIED_HASH;
 
-    if (!$viewer) {
-      return array();
-    }
-
     $commits = id(new DiffusionCommitQuery())
       ->setViewer($viewer)
       ->withIdentifiers($ids)

src/applications/diviner/renderer/DivinerDefaultRenderer.php

@@ -186,6 +186,7 @@ final class DivinerDefaultRenderer extends DivinerRenderer {
       array(
         'preserve-linebreaks' => false,
       ));
+    $engine->setConfig('viewer', new PhabricatorUser());
     $engine->setConfig('diviner.renderer', $this);
     return $engine;
   }

src/applications/maniphest/remarkup/ManiphestRemarkupRule.php

@@ -13,10 +13,6 @@ final class ManiphestRemarkupRule
   protected function loadObjects(array $ids) {
     $viewer = $this->getEngine()->getConfig('viewer');
 
-    if (!$viewer) {
-      return array();
-    }
-
     return id(new ManiphestTaskQuery())
       ->setViewer($viewer)
       ->withTaskIDs($ids)

src/applications/paste/remarkup/PhabricatorPasteRemarkupRule.php

@@ -13,10 +13,6 @@ final class PhabricatorPasteRemarkupRule
   protected function loadObjects(array $ids) {
     $viewer = $this->getEngine()->getConfig('viewer');
 
-    if (!$viewer) {
-      return array();
-    }
-
     return id(new PhabricatorPasteQuery())
       ->setViewer($viewer)
       ->withIDs($ids)

src/applications/people/controller/PhabricatorPeopleProfileController.php

@@ -171,11 +171,12 @@ final class PhabricatorPeopleProfileController
       $profile->getBlurb(),
       '//'.pht('Nothing is known about this rare specimen.').'//');
 
-    $engine = PhabricatorMarkupEngine::newProfileMarkupEngine();
-    $blurb = $engine->markupText($blurb);
-
     $viewer = $this->getRequest()->getUser();
 
+    $engine = PhabricatorMarkupEngine::newProfileMarkupEngine();
+    $engine->setConfig('viewer', $viewer);
+    $blurb = $engine->markupText($blurb);
+
     $content = hsprintf(
       '<div class="phabricator-profile-info-group">
         <h1 class="phabricator-profile-info-header">Basic Information</h1>

src/applications/pholio/remarkup/PholioRemarkupRule.php

@@ -9,11 +9,6 @@ final class PholioRemarkupRule
 
   protected function loadObjects(array $ids) {
     $viewer = $this->getEngine()->getConfig('viewer');
-
-    if (!$viewer) {
-      return array();
-    }
-
     return id(new PholioMockQuery())
       ->setViewer($viewer)
       ->withIDs($ids)

src/applications/ponder/remarkup/PonderRemarkupRule.php

@@ -9,11 +9,6 @@ final class PonderRemarkupRule
 
   protected function loadObjects(array $ids) {
     $viewer = $this->getEngine()->getConfig('viewer');
-
-    if (!$viewer) {
-      return array();
-    }
-
     return id(new PonderQuestionQuery())
       ->setViewer($viewer)
       ->withIDs($ids)

src/applications/slowvote/controller/PhabricatorSlowvotePollController.php

@@ -200,6 +200,7 @@ final class PhabricatorSlowvotePollController
     $viewer = $this->getRequest()->getUser();
 
     $engine = PhabricatorMarkupEngine::newSlowvoteMarkupEngine();
+    $engine->setConfig('viewer', $viewer);
 
     $comment_markup = array();
     foreach ($comments as $comment) {

src/applications/transactions/view/PhabricatorApplicationTransactionTextDiffDetailView.php

@@ -33,9 +33,12 @@ final class PhabricatorApplicationTransactionTextDiffDetailView
 
     $whitespace_mode = DifferentialChangesetParser::WHITESPACE_SHOW_ALL;
 
+    $markup_engine = new PhabricatorMarkupEngine();
+    $markup_engine->setViewer($this->getUser());
+
     $parser = new DifferentialChangesetParser();
     $parser->setChangeset($changeset);
-    $parser->setMarkupEngine(new PhabricatorMarkupEngine());
+    $parser->setMarkupEngine($markup_engine);
     $parser->setWhitespaceMode($whitespace_mode);
 
     return $parser->render(0, PHP_INT_MAX, array());

src/infrastructure/markup/PhabricatorMarkupEngine.php

@@ -461,6 +461,7 @@ final class PhabricatorMarkupEngine {
     $mentions = array();
 
     $engine = self::newDifferentialMarkupEngine();
+    $engine->setConfig('viewer', PhabricatorUser::getOmnipotentUser());
 
     foreach ($content_blocks as $content_block) {
       $engine->markupText($content_block);
@@ -478,6 +479,7 @@ final class PhabricatorMarkupEngine {
     $files = array();
 
     $engine = self::newDifferentialMarkupEngine();
+    $engine->setConfig('viewer', PhabricatorUser::getOmnipotentUser());
 
     foreach ($content_blocks as $content_block) {
       $engine->markupText($content_block);

src/infrastructure/markup/rule/PhabricatorRemarkupRuleObject.php

@@ -24,14 +24,7 @@ abstract class PhabricatorRemarkupRuleObject
     $query = new PhabricatorObjectHandleData($phids);
 
     $viewer = $this->getEngine()->getConfig('viewer');
-    if ($viewer) {
+    $query->setViewer($viewer);
-      $query->setViewer($viewer);
-    } else {
-      // TODO: This needs to be fixed; all markup engines need to set viewers --
-      // but there are a lot of them (T603).
-      $query->setViewer(PhabricatorUser::getOmnipotentUser());
-      phlog("Warning: Loading handles without a viewing user.");
-    }
     $handles = $query->loadHandles();
 
     $result = array();