Add text/plain download of chat log

acptemplate/messageLog.tpl

@@ -53,6 +53,19 @@
 	</div>
 </form>
 
+<div class="contentNavigation">
+	<nav>
+		<ul>
+			<li>
+				<a class="button" href="{link controller='MessageLogDownload' application='chat' object=$room date=$date|date:'Y-m-d'}{/link}">
+					<span class="icon icon16 icon-download-alt"></span>
+					<span>{lang}chat.acp.log.download{/lang}</span>
+				</a>
+			</li>
+		</ul>
+	</nav>
+</div>
+
 {if $errorField === ''}
 	<div id="messageLogContent" class="tabMenuContainer marginTop" data-active="timeTab-0" data-store="activeTabMenuItem" data-base-time="{$date}" data-room-id="{$room->roomID}">
 		<nav class="tabMenu">

file/lib/acp/page/MessageLogDownloadPage.class.php

@@ -0,0 +1,136 @@
+<?php
+namespace chat\acp\page;
+use \wcf\system\WCF;
+
+/**
+ * Handles text/plain download of chat log.
+ * 
+ * @author 	Maximilian Mader
+ * @copyright	2010-2013 Tim Düsterhus
+ * @license	Creative Commons Attribution-NonCommercial-ShareAlike <http://creativecommons.org/licenses/by-nc-sa/3.0/legalcode>
+ * @package	be.bastelstu.chat
+ * @subpackage	acp.page
+ */
+class MessageLogDownloadPage extends \wcf\page\AbstractPage {
+	/**
+	 * @see	\wcf\page\AbstractPage::$activeMenuItem
+	 */
+	public $activeMenuItem = 'chat.acp.menu.link.log';
+	
+	/**
+	 * @see	\wcf\page\AbstractPage::$neededPermissions
+	 */
+	public $neededPermissions = array(
+		'mod.chat.canReadLog'
+	);
+	
+	public $useTemplate = false;
+	
+	/**
+	 * messages for the given day
+	 * 
+	 * @var	array<\chat\data\message\Message>
+	 */
+	public $messages = array();
+	
+	/**
+	 * given roomID
+	 * 
+	 * @var	integer
+	 */
+	public $roomID = 0;
+	
+	/**
+	 * given date
+	 * 
+	 * @var integer
+	 */
+	public $date = 0;
+	
+	/**
+	 * active room
+	 * 
+	 * @var	\chat\data\room\Room
+	 */
+	public $room = null;
+	
+	/**
+	 * available rooms
+	 *  
+	 * @var	array<\chat\data\room\Room>
+	 */
+	public $rooms = array();
+	
+	public $tmpFile = '';
+	
+	/**
+	 * @see	\wcf\page\IPage::readData()
+	 */
+	public function readData() {
+		parent::readData();
+		
+		if ($this->date > TIME_NOW) {
+			throw new \wcf\system\exception\IllegalLinkException();
+		}
+		
+		if ($this->date < strtotime('today 00:00:00 -'.ceil(CHAT_LOG_ARCHIVETIME / 1440).'day')) {
+			throw new \wcf\system\exception\IllegalLinkException();
+		}
+		
+		$this->tmpFile = \wcf\util\FileUtil::getTemporaryFilename();
+		touch($this->tmpFile);
+		\wcf\util\FileUtil::makeWritable($this->tmpFile);
+		
+		if (is_writable($this->tmpFile)) {
+			$file = new \wcf\system\io\File($this->tmpFile);
+			$file->write(WCF::getLanguage()->get('chat.acp.log.title') . ': ' . (string) $this->room . "\n");
+			
+			for ($start = $this->date, $end = $start + 86399; $start < $end; $start += 1800) {
+				$file->write(WCF::getTpl()->fetch('messageLogDownload', 'chat', array('messages' => \chat\data\message\MessageList::getMessagesBetween($this->room, $start, $start + 1799))));
+			}
+			
+			$file->close();
+		}
+		else {
+			throw new \wcf\system\exception\IllegalLinkException();
+		}
+		
+	}
+	
+	/**
+	 * @see	\wcf\page\IPage::readParameters()
+	 */
+	public function readParameters() {
+		parent::readParameters();
+		
+		if (isset($_REQUEST['id'])) {
+			$this->roomID = intval($_REQUEST['id']);
+		}
+		else {
+			throw new \wcf\system\exception\IllegalLinkException();
+		}
+		
+		$this->room = \chat\data\room\RoomCache::getInstance()->getRoom($this->roomID);
+		if ($this->room === null) throw new \wcf\system\exception\IllegalLinkException();
+		
+		if (isset($_REQUEST['date'])) $date = $_REQUEST['date'].' 00:00:00';
+		else $date = 'today 00:00:00';
+		
+		$this->date = @strtotime($date);
+		if ($this->date === false) throw new \wcf\system\exception\IllegalLinkException();
+	}
+	
+	/**
+	 * @see	wcf\page\IPage::show()
+	 */
+	public function show() {
+		parent::show();
+		
+		$dateTime = \wcf\util\DateUtil::getDateTimeByTimestamp($this->date);
+		
+		$fileReader = new \wcf\util\FileReader($this->tmpFile, array('mimeType' => 'text/plain', 'filename' => str_replace(' ', '-', WCF::getLanguage()->get('chat.acp.log.title') . ' ' . $this->room.'-'.\wcf\util\DateUtil::format($dateTime, 'Y-m-d').'.txt')));
+		$fileReader->send();
+		
+		exit;
+	}
+}

language/de.xml

@@ -23,6 +23,7 @@
 	
 	<category name="chat.acp.log">
 		<item name="chat.acp.log.title"><![CDATA[Nachrichten-Protokoll]]></item>
+		<item name="chat.acp.log.download"><![CDATA[Tages-Protokoll herunterladen]]></item>
 		<item name="chat.acp.log.message"><![CDATA[Nachricht]]></item>
 		<item name="chat.acp.log.date.error.inFuture"><![CDATA[Das angegebene Datum befindet sich in der Zukunft.]]></item>
 		<item name="chat.acp.log.date.error.tooLongAgo"><![CDATA[Das angegebene Datum befindet sich außerhalb der protokollierten Zeitspanne von {CHAT_LOG_ARCHIVETIME / 1440|ceil} Tagen.]]></item>