When a user pastes a Phabricator URI into the search box, redirect to the URI

Summary:
Depends on D20509. See PHI1224. Ref T5378. With some frequency, I paste URIs into the global search input (I am dumb).

When I do this dumb thing, redirect to the URI as though the global search was a URI bar.

Maybe only I am dumb like this, but I don't think it'll hurt anything.

Test Plan: pasted a URI and hit return; tried to eat a rock

Reviewers: amckinley, joshuaspence

Reviewed By: joshuaspence

Maniphest Tasks: T5378

Differential Revision: https://secure.phabricator.com/D20510

src/__phutil_library_map__.php

@@ -3040,6 +3040,7 @@ phutil_register_library_map(array(
     'PhabricatorDatasourceEditType' => 'applications/transactions/edittype/PhabricatorDatasourceEditType.php',
     'PhabricatorDatasourceEngine' => 'applications/search/engine/PhabricatorDatasourceEngine.php',
     'PhabricatorDatasourceEngineExtension' => 'applications/search/engineextension/PhabricatorDatasourceEngineExtension.php',
+    'PhabricatorDatasourceURIEngineExtension' => 'applications/meta/engineextension/PhabricatorDatasourceURIEngineExtension.php',
     'PhabricatorDateFormatSetting' => 'applications/settings/setting/PhabricatorDateFormatSetting.php',
     'PhabricatorDateTimeSettingsPanel' => 'applications/settings/panel/PhabricatorDateTimeSettingsPanel.php',
     'PhabricatorDebugController' => 'applications/system/controller/PhabricatorDebugController.php',
@@ -9082,6 +9083,7 @@ phutil_register_library_map(array(
     'PhabricatorDatasourceEditType' => 'PhabricatorPHIDListEditType',
     'PhabricatorDatasourceEngine' => 'Phobject',
     'PhabricatorDatasourceEngineExtension' => 'Phobject',
+    'PhabricatorDatasourceURIEngineExtension' => 'PhabricatorDatasourceEngineExtension',
     'PhabricatorDateFormatSetting' => 'PhabricatorSelectSetting',
     'PhabricatorDateTimeSettingsPanel' => 'PhabricatorEditEngineSettingsPanel',
     'PhabricatorDebugController' => 'PhabricatorController',

src/applications/meta/engineextension/PhabricatorDatasourceURIEngineExtension.php

@@ -0,0 +1,34 @@
+<?php
+
+final class PhabricatorDatasourceURIEngineExtension
+  extends PhabricatorDatasourceEngineExtension {
+
+  public function newQuickSearchDatasources() {
+    return array();
+  }
+
+  public function newJumpURI($query) {
+    // If you search for a URI on the local install, just redirect to that
+    // URI as though you had pasted it into the URI bar.
+    if (PhabricatorEnv::isSelfURI($query)) {
+      // Strip off the absolute part of the URI. If we don't, the URI redirect
+      // validator will get upset that we're performing an unmarked external
+      // redirect.
+
+      // The correct host and protocol may also differ from the host and
+      // protocol used in the search: for example, if you search for "http://"
+      // we want to redirect to "https://" if an install is HTTPS, and
+      // the "isSelfURI()" check includes alternate domains in addition to the
+      // canonical domain.
+
+      $uri = id(new PhutilURI($query))
+        ->setDomain(null)
+        ->setProtocol(null)
+        ->setPort(null);
+
+      return phutil_string_cast($uri);
+    }
+
+    return null;
+  }
+}