Basic remarkup integration for Phriction

Summary: Document linking and some general layout improvements. I'd like to
eventually do more meta-dataey things with links (like store them separately and
check them for 404s) but this is a decent start.
Test Plan:
https://secure.phabricator.com/file/view/PHID-FILE-d756b94a06b69c273fce/
Reviewed By: jungejason
Reviewers: hsb, codeblock, jungejason, tuomaspelkonen, aran
CC: aran, jungejason, epriestley
Differential Revision: 650

src/__phutil_library_map__.php

@@ -469,6 +469,7 @@ phutil_register_library_map(array(
     'PhabricatorRemarkupRuleMention' => 'infrastructure/markup/remarkup/markuprule/mention',
     'PhabricatorRemarkupRuleObjectName' => 'infrastructure/markup/remarkup/markuprule/objectname',
     'PhabricatorRemarkupRulePaste' => 'infrastructure/markup/remarkup/markuprule/paste',
+    'PhabricatorRemarkupRulePhriction' => 'infrastructure/markup/remarkup/markuprule/phriction',
     'PhabricatorRemarkupRuleProxyImage' => 'infrastructure/markup/remarkup/markuprule/proxyimage',
     'PhabricatorRemarkupRuleYoutube' => 'infrastructure/markup/remarkup/markuprule/youtube',
     'PhabricatorRepository' => 'applications/repository/storage/repository',
@@ -980,6 +981,7 @@ phutil_register_library_map(array(
     'PhabricatorRemarkupRuleMention' => 'PhutilRemarkupRule',
     'PhabricatorRemarkupRuleObjectName' => 'PhutilRemarkupRule',
     'PhabricatorRemarkupRulePaste' => 'PhabricatorRemarkupRuleObjectName',
+    'PhabricatorRemarkupRulePhriction' => 'PhutilRemarkupRule',
     'PhabricatorRemarkupRuleProxyImage' => 'PhutilRemarkupRule',
     'PhabricatorRemarkupRuleYoutube' => 'PhutilRemarkupRule',
     'PhabricatorRepository' => 'PhabricatorRepositoryDAO',

src/applications/markup/engine/PhabricatorMarkupEngine.php

@@ -101,6 +101,7 @@ class PhabricatorMarkupEngine {
     $rules[] = new PhabricatorRemarkupRulePaste();
     $rules[] = new PhabricatorRemarkupRuleImageMacro();
     $rules[] = new PhabricatorRemarkupRuleMention();
+    $rules[] = new PhabricatorRemarkupRulePhriction();
 
     $custom_rule_classes = $options['custom-inline'];
     if ($custom_rule_classes) {

src/applications/markup/engine/__init__.php

@@ -13,6 +13,7 @@ phutil_require_module('phabricator', 'infrastructure/markup/remarkup/markuprule/
 phutil_require_module('phabricator', 'infrastructure/markup/remarkup/markuprule/maniphest');
 phutil_require_module('phabricator', 'infrastructure/markup/remarkup/markuprule/mention');
 phutil_require_module('phabricator', 'infrastructure/markup/remarkup/markuprule/paste');
+phutil_require_module('phabricator', 'infrastructure/markup/remarkup/markuprule/phriction');
 phutil_require_module('phabricator', 'infrastructure/markup/remarkup/markuprule/proxyimage');
 phutil_require_module('phabricator', 'infrastructure/markup/remarkup/markuprule/youtube');
 

src/applications/phriction/controller/document/PhrictionDocumentController.php

@@ -27,6 +27,8 @@ class PhrictionDocumentController
 
   public function processRequest() {
 
+    $request = $this->getRequest();
+
     $slug = PhrictionDocument::normalizeSlug($this->slug);
     if ($slug != $this->slug) {
       $uri = PhrictionDocument::getSlugURI($slug);
@@ -41,19 +43,62 @@ class PhrictionDocumentController
       $slug);
 
     if (!$document) {
-      $page_content = '<em>No content here!</em>';
+      $create_uri = '/phriction/edit/?slug='.$slug;
+
+      $page_content =
+        '<div class="phriction-content">'.
+          '<em>No content here!</em><br />'.
+          'No document found at <tt>'.phutil_escape_html($slug).'</tt>. '.
+          'You can <strong>'.
+          phutil_render_tag(
+            'a',
+            array(
+              'href' => $create_uri,
+            ),
+            'create a new document').'</strong>.'.
+        '</div>';
       $page_title = 'Page Not Found';
       $button = phutil_render_tag(
         'a',
         array(
-          'href' => '/phriction/edit/?slug='.$slug,
+          'href' => $create_uri,
           'class' => 'green button',
         ),
         'Create Page');
     } else {
       $content = id(new PhrictionContent())->load($document->getContentID());
-      $page_content = phutil_escape_html($content->getContent());
       $page_title = $content->getTitle();
+
+      $phids = array($content->getAuthorPHID());
+      $handles = id(new PhabricatorObjectHandleData($phids))->loadHandles();
+
+      $age = time() - $content->getDateCreated();
+      $age = floor($age / (60 * 60 * 24));
+
+      if ($age < 1) {
+        $when = 'today';
+      } else if ($age == 1) {
+        $when = 'yesterday';
+      } else {
+        $when = "{$age} days ago";
+      }
+
+      $byline =
+        '<div class="phriction-byline">'.
+          "Last updated {$when} by ".
+          $handles[$content->getAuthorPHID()]->renderLink().'.'.
+        '</div>';
+
+      $engine = PhabricatorMarkupEngine::newPhrictionMarkupEngine();
+
+      $page_content =
+        '<div class="phriction-content">'.
+          $byline.
+          '<div class="phabricator-remarkup">'.
+            $engine->markupText($content->getContent()).
+          '</div>'.
+        '</div>';
+
       $button = phutil_render_tag(
         'a',
         array(

src/applications/phriction/controller/document/__init__.php

@@ -7,6 +7,8 @@
 
 
 phutil_require_module('phabricator', 'aphront/response/redirect');
+phutil_require_module('phabricator', 'applications/markup/engine');
+phutil_require_module('phabricator', 'applications/phid/handle/data');
 phutil_require_module('phabricator', 'applications/phriction/controller/base');
 phutil_require_module('phabricator', 'applications/phriction/storage/content');
 phutil_require_module('phabricator', 'applications/phriction/storage/document');

src/applications/phriction/controller/edit/PhrictionEditController.php

@@ -58,7 +58,8 @@ class PhrictionEditController
 
         $default_title = null;
         if ($slug) {
-          $default_title = end(explode('/', trim($slug, '/')));
+          $parts = explode('/', trim($slug, '/'));
+          $default_title = end($parts);
           $default_title = str_replace('_', ' ', $default_title);
           $default_title = ucwords($default_title);
         }

src/infrastructure/markup/remarkup/markuprule/phriction/PhabricatorRemarkupRulePhriction.php

@@ -0,0 +1,52 @@
+<?php
+
+/*
+ * Copyright 2011 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @group markup
+ */
+class PhabricatorRemarkupRulePhriction
+  extends PhutilRemarkupRule {
+
+  public function apply($text) {
+    return preg_replace_callback(
+      '@\B\\[([^|\\]]+)(?:\\|([^\\]]+))?\\]\B@U',
+      array($this, 'markupDocumentLink'),
+      $text);
+  }
+
+  public function markupDocumentLink($matches) {
+
+    $slug = trim($matches[1]);
+    $name = trim(idx($matches, 2, $slug));
+    $name = explode('/', $name);
+    $name = end($name);
+
+    $slug = PhrictionDocument::normalizeSlug($slug);
+    $uri  = PhrictionDocument::getSlugURI($slug);
+
+    return $this->getEngine()->storeText(
+      phutil_render_tag(
+        'a',
+        array(
+          'href'  => $uri,
+          'class' => 'phriction-link',
+        ),
+        phutil_escape_html($name)));
+  }
+
+}

src/infrastructure/markup/remarkup/markuprule/phriction/__init__.php

@@ -0,0 +1,16 @@
+<?php
+/**
+ * This file is automatically generated. Lint this module to rebuild it.
+ * @generated
+ */
+
+
+
+phutil_require_module('phabricator', 'applications/phriction/storage/document');
+
+phutil_require_module('phutil', 'markup');
+phutil_require_module('phutil', 'markup/engine/remarkup/markuprule/base');
+phutil_require_module('phutil', 'utils');
+
+
+phutil_require_source('PhabricatorRemarkupRulePhriction.php');