Add an "IRC Object Name" handler for D12345

Summary:
I need to add some more conduit methods / info to make this at all useful but
here's some basics.

Test Plan:
Hung out in #phabot-test

Reviewed By: mroch
Reviewers: mroch, codeblock, aran, jungejason, tuomaspelkonen
CC: aran, mroch, epriestley
Differential Revision: 300

src/__phutil_library_map__.php

@@ -325,6 +325,7 @@ phutil_register_library_map(array(
     'PhabricatorIRCBot' => 'infrastructure/daemon/irc/bot',
     'PhabricatorIRCHandler' => 'infrastructure/daemon/irc/handler/base',
     'PhabricatorIRCMessage' => 'infrastructure/daemon/irc/message',
+    'PhabricatorIRCObjectNameHandler' => 'infrastructure/daemon/irc/handler/objectname',
     'PhabricatorIRCProtocolHandler' => 'infrastructure/daemon/irc/handler/protocol',
     'PhabricatorJavelinLinter' => 'infrastructure/lint/linter/javelin',
     'PhabricatorLintEngine' => 'infrastructure/lint/engine',
@@ -752,6 +753,7 @@ phutil_register_library_map(array(
     'PhabricatorFileViewController' => 'PhabricatorFileController',
     'PhabricatorGoodForNothingWorker' => 'PhabricatorWorker',
     'PhabricatorIRCBot' => 'PhabricatorDaemon',
+    'PhabricatorIRCObjectNameHandler' => 'PhabricatorIRCHandler',
     'PhabricatorIRCProtocolHandler' => 'PhabricatorIRCHandler',
     'PhabricatorJavelinLinter' => 'ArcanistLinter',
     'PhabricatorLintEngine' => 'PhutilLintEngine',

src/infrastructure/daemon/irc/bot/PhabricatorIRCBot.php

@@ -200,7 +200,11 @@ final class PhabricatorIRCBot extends PhabricatorDaemon {
 
   private function routeMessage(PhabricatorIRCMessage $message) {
     foreach ($this->handlers as $handler) {
-      $handler->receiveMessage($message);
+      try {
+        $handler->receiveMessage($message);
+      } catch (Exception $ex) {
+        phlog($ex);
+      }
     }
   }
 

src/infrastructure/daemon/irc/bot/__init__.php

@@ -10,6 +10,7 @@ phutil_require_module('phabricator', 'infrastructure/daemon/base');
 phutil_require_module('phabricator', 'infrastructure/daemon/irc/message');
 
 phutil_require_module('phutil', 'conduit/client');
+phutil_require_module('phutil', 'error');
 phutil_require_module('phutil', 'filesystem');
 phutil_require_module('phutil', 'utils');
 

src/infrastructure/daemon/irc/handler/objectname/PhabricatorIRCObjectNameHandler.php

@@ -0,0 +1,62 @@
+<?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.
+ */
+
+/**
+ * Looks for Dxxxx, Txxxx and links to them.
+ *
+ * @group irc
+ */
+class PhabricatorIRCObjectNameHandler extends PhabricatorIRCHandler {
+
+  public function receiveMessage(PhabricatorIRCMessage $message) {
+
+    switch ($message->getCommand()) {
+      case 'PRIVMSG':
+        $channel = $message->getChannel();
+        if (!$channel) {
+          break;
+        }
+
+        $message = $message->getMessageText();
+        $matches = null;
+        $phids = array();
+        if (preg_match_all('/(?:^|\b)D(\d+)(?:\b|$)/', $message, $matches)) {
+          if ($matches[1]) {
+            $revisions = $this->getConduit()->callMethodSynchronous(
+              'differential.find',
+              array(
+                'query' => 'revision-ids',
+                'guids' => $matches[1],
+              ));
+
+            // TODO: This is utter hacks until phid.find or similar lands.
+            foreach ($revisions as $revision) {
+              $phids[$revision['phid']] =
+                'D'.$revision['id'].' '.$revision['name'].' - '.
+                PhabricatorEnv::getProductionURI('/D'.$revision['id']);
+            }
+          }
+        }
+        foreach ($phids as $phid => $description) {
+          $this->write('PRIVMSG', "{$channel} :{$description}");
+        }
+        break;
+    }
+  }
+
+}

src/infrastructure/daemon/irc/handler/objectname/__init__.php

@@ -0,0 +1,13 @@
+<?php
+/**
+ * This file is automatically generated. Lint this module to rebuild it.
+ * @generated
+ */
+
+
+
+phutil_require_module('phabricator', 'infrastructure/daemon/irc/handler/base');
+phutil_require_module('phabricator', 'infrastructure/env');
+
+
+phutil_require_source('PhabricatorIRCObjectNameHandler.php');

src/infrastructure/daemon/irc/message/PhabricatorIRCMessage.php

@@ -40,4 +40,30 @@ final class PhabricatorIRCMessage {
     return $this->command;
   }
 
+  public function getChannel() {
+    switch ($this->getCommand()) {
+      case 'PRIVMSG':
+        $matches = null;
+        $raw = $this->getRawData();
+        if (preg_match('/^(\S+)\s/', $raw, $matches)) {
+          return $matches[1];
+        }
+       break;
+    }
+    return null;
+  }
+
+  public function getMessageText() {
+    switch ($this->getCommand()) {
+      case 'PRIVMSG':
+        $matches = null;
+        $raw = $this->getRawData();
+        if (preg_match('/^\S+\s+:?(.*)$/', $raw, $matches)) {
+          return rtrim($matches[1], "\r\n");
+        }
+        break;
+    }
+    return null;
+  }
+
 }