Merge IRCProtocolHandler into IRCAdapter

Summary:
Clearly silly to have a separate handler for this. I also made most of the protocol stuff direct writes so we don't need to ship them through handlers, and made the adapter ignore message it does not understand by default instead of sending them to IRC, and added PASTE "support".

We could still let handlers react to these messages by emitting them all as 'RAWIRC' or similar, but there's currently no need for that so I didn't bother.

Also fix an issue in D4924 with nickpass.

Test Plan: Had bot join IRC, talked to it.

Reviewers: indiefan

Reviewed By: indiefan

CC: aran

Differential Revision: https://secure.phabricator.com/D4925

src/infrastructure/daemon/bot/adapter/PhabricatorIRCProtocolAdapter.php

@@ -41,21 +41,11 @@ final class PhabricatorIRCProtocolAdapter
     }
 
     $this->socket = $socket;
-    $this->writeMessage(
-      id(new PhabricatorBotMessage())
-      ->setCommand('USER')
-      ->setBody("{$user} 0 * :{$user}"));
+    $this->write("USER {$user} 0 * :{$user}");
     if ($pass) {
-      $this->writeMessage(
-        id(new PhabricatorBotMessage())
-        ->setCommand('PASS')
-        ->setBody("{$pass}"));
+      $this->write("PASS {$pass}");
     }
-
-    $this->writeMessage(
-      id(new PhabricatorBotMessage())
-      ->setCommand('NICK')
-      ->setBody("{$nick}"));
+    $this->write("NICK {$nick}");
   }
 
   public function getNextMessages($poll_frequency) {
@@ -111,33 +101,31 @@ final class PhabricatorIRCProtocolAdapter
       } while (strlen($this->writeBuffer));
     }
 
-    while ($m = $this->processReadBuffer()) {
-      $messages[] = $m;
+    while (($m = $this->processReadBuffer()) !== false) {
+      if ($m !== null) {
+        $messages[] = $m;
+      }
     }
 
     return $messages;
   }
 
   private function write($message) {
-    $this->writeBuffer .= $message;
+    $this->writeBuffer .= $message."\r\n";
     return $this;
   }
 
   public function writeMessage(PhabricatorBotMessage $message) {
-    $irc_command = $this->getIRCCommand($message->getCommand());
     switch ($message->getCommand()) {
-    case 'MESSAGE':
-      $data = $irc_command.' '.
-        $message->getTarget()->getName().' :'.
-        $message->getBody()."\r\n";
-      break;
-    default:
-      $data = $irc_command.' '.
-        $message->getBody()."\r\n";
-      break;
+      case 'MESSAGE':
+      case 'PASTE':
+        $name = $message->getTarget()->getName();
+        $body = $message->getBody();
+        $this->write("PRIVMSG {$name} :{$body}");
+        return true;
+      default:
+        return false;
     }
-
-    return $this->write($data);
   }
 
   private function processReadBuffer() {
@@ -161,6 +149,10 @@ final class PhabricatorIRCProtocolAdapter
       throw new Exception("Unexpected message from server: {$message}");
     }
 
+    if ($this->handleIRCProtocol($matches)) {
+      return null;
+    }
+
     $command = $this->getBotCommand($matches['command']);
     list($target, $body) = $this->parseMessageData($command, $matches['data']);
 
@@ -180,6 +172,31 @@ final class PhabricatorIRCProtocolAdapter
     return $bot_message;
   }
 
+  private function handleIRCProtocol(array $matches) {
+    $data = $matches['data'];
+    switch ($matches['command']) {
+      case '422': // Error - no MOTD
+      case '376': // End of MOTD
+        $nickpass = $this->getConfig('nickpass');
+        if ($nickpass) {
+          $this->write("PRIVMSG nickserv :IDENTIFY {$nickpass}");
+        }
+        $join = $this->getConfig('join');
+        if (!$join) {
+          throw new Exception("Not configured to join any channels!");
+        }
+        foreach ($join as $channel) {
+          $this->write("JOIN {$channel}");
+        }
+        return true;
+      case 'PING':
+        $this->write("PONG {$data}");
+        return true;
+    }
+
+    return false;
+  }
+
   private function getBotCommand($irc_command) {
     if (isset(self::$commandTranslations[$irc_command])) {
       return self::$commandTranslations[$irc_command];
@@ -189,36 +206,26 @@ final class PhabricatorIRCProtocolAdapter
     return $irc_command;
   }
 
-  private function getIRCCommand($original_bot_command) {
-    foreach (self::$commandTranslations as $irc_command=>$bot_command) {
-      if ($bot_command === $original_bot_command) {
-        return $irc_command;
-      }
-    }
-
-    return $original_bot_command;
-  }
-
   private function parseMessageData($command, $data) {
     switch ($command) {
-    case 'MESSAGE':
-      $matches = null;
-      if (preg_match('/^(\S+)\s+:?(.*)$/', $data, $matches)) {
+      case 'MESSAGE':
+        $matches = null;
+        if (preg_match('/^(\S+)\s+:?(.*)$/', $data, $matches)) {
 
-        $target_name = $matches[1];
-        if (strncmp($target_name, '#', 1) === 0) {
-          $target = id(new PhabricatorBotChannel())
-            ->setName($target_name);
-        } else {
-          $target = id(new PhabricatorBotUser())
-            ->setName($target_name);
+          $target_name = $matches[1];
+          if (strncmp($target_name, '#', 1) === 0) {
+            $target = id(new PhabricatorBotChannel())
+              ->setName($target_name);
+          } else {
+            $target = id(new PhabricatorBotUser())
+              ->setName($target_name);
+          }
+
+          return array(
+            $target,
+            rtrim($matches[2], "\r\n"));
         }
-
-        return array(
-          $target,
-          rtrim($matches[2], "\r\n"));
-      }
-      break;
+        break;
     }
 
     // By default we assume there is no target, only a body
@@ -228,7 +235,7 @@ final class PhabricatorIRCProtocolAdapter
   }
 
   public function __destruct() {
-    $this->write("QUIT Goodbye.\r\n");
+    $this->write("QUIT Goodbye.");
     fclose($this->socket);
   }
 }

src/infrastructure/daemon/bot/handler/PhabricatorIRCProtocolHandler.php

@@ -1,41 +1,15 @@
 <?php
 
 /**
- * Implements the base IRC protocol so servers don't kick you off.
- *
- * @group irc
+ * @deprecated
  */
 final class PhabricatorIRCProtocolHandler extends PhabricatorBotHandler {
 
   public function receiveMessage(PhabricatorBotMessage $message) {
-    switch ($message->getCommand()) {
-      case '422': // Error - no MOTD
-      case '376': // End of MOTD
-        $nickpass = $this->getConfig('nickpass');
-        if ($nickpass) {
-          $this->writeMessage(
-            id(new PhabricatorBotMessage())
-            ->setCommand('MESSAGE')
-            ->setTarget('nickserv')
-            ->setBody("IDENTIFY {$nickpass}"));
-        }
-        $join = $this->getConfig('join');
-        if (!$join) {
-          throw new Exception("Not configured to join any channels!");
-        }
-        foreach ($join as $channel) {
-          $this->writeMessage(
-            id(new PhabricatorBotMessage())
-            ->setCommand('JOIN')
-            ->setBody($channel));
-        }
-        break;
-      case 'PING':
-        $this->writeMessage(
-          id(new PhabricatorBotMessage())
-          ->setCommand('PONG')
-          ->setBody($message->getBody()));
-        break;
+    static $warned;
+    if (!$warned) {
+      $warned = true;
+      phlog("The PhabricatorIRCProtocolHandler has been deprecated.");
     }
   }