3 files changed, 46 insertions, 28 deletions
diff --git a/phpBB/includes/functions.php b/phpBB/includes/functions.php
index f23b9840c6..d7554588c5 100644
--- a/phpBB/includes/functions.php
+++ b/phpBB/includes/functions.php
@@ -1061,7 +1061,7 @@ function phpbb_timezone_select($user, $default = '', $truncate = false)
 		foreach ($unsorted_timezones as $timezone)
 		{
 			$tz = new DateTimeZone($timezone);
-			$dt = new \phpbb\datetime($user, 'now', $tz);
+			$dt = $user->create_datetime('now', $tz);
 			$offset = $dt->getOffset();
 			$current_time = $dt->format($user->lang['DATETIME_FORMAT'], true);
 			$offset_string = phpbb_format_timezone_offset($offset);
@@ -4892,7 +4892,7 @@ function page_header($page_title = '', $display_online_list = false, $item_id =
 		}
 	}
 
-	$dt = new \phpbb\datetime($user, 'now', $user->timezone);
+	$dt = $user->create_datetime();
 	$timezone_offset = 'GMT' . phpbb_format_timezone_offset($dt->getOffset());
 	$timezone_name = $user->timezone->getName();
 	if (isset($user->lang['timezones'][$timezone_name]))
@@ -5052,6 +5052,20 @@ function page_header($page_title = '', $display_online_list = false, $item_id =
 		'SITE_LOGO_IMG'			=> $user->img('site_logo'),
 	));
 
+	// An array of http headers that phpbb will set. The following event may override these.
+	$http_headers = array(
+		// application/xhtml+xml not used because of IE
+		'Content-type' => 'text/html; charset=UTF-8',
+		'Cache-Control' => 'private, no-cache="set-cookie"',
+		'Expires' => '0',
+		'Pragma' => 'no-cache',
+	);
+	if (!empty($user->data['is_bot']))
+	{
+		// Let reverse proxies know we detected a bot.
+		$http_headers['X-PHPBB-IS-BOT'] = 'yes';
+	}
+
 	/**
 	* Execute code and/or overwrite _common_ template variables after they have been assigned.
 	*
@@ -5062,23 +5076,16 @@ function page_header($page_title = '', $display_online_list = false, $item_id =
 	*									session item, e.g. forum for
 	*									session_forum_id
 	* @var	int		item_id				Restrict online users to item id
+	* @var	array		http_headers			HTTP headers that should be set by phpbb
 	*
 	* @since 3.1.0-b3
 	*/
-	$vars = array('page_title', 'display_online_list', 'item_id', 'item');
+	$vars = array('page_title', 'display_online_list', 'item_id', 'item', 'http_headers');
 	extract($phpbb_dispatcher->trigger_event('core.page_header_after', compact($vars)));
 
-	// application/xhtml+xml not used because of IE
-	header('Content-type: text/html; charset=UTF-8');
-
-	header('Cache-Control: private, no-cache="set-cookie"');
-	header('Expires: 0');
-	header('Pragma: no-cache');
-
-	if (!empty($user->data['is_bot']))
+	foreach ($http_headers as $hname => $hval)
 	{
-		// Let reverse proxies know we detected a bot.
-		header('X-PHPBB-IS-BOT: yes');
+		header((string) $hname . ': ' . (string) $hval);
 	}
 
 	return;
diff --git a/phpBB/includes/functions_acp.php b/phpBB/includes/functions_acp.php
index dc3d745d53..d9dc11239c 100644
--- a/phpBB/includes/functions_acp.php
+++ b/phpBB/includes/functions_acp.php
@@ -107,12 +107,31 @@ function adm_page_header($page_title)
 		'S_CONTENT_FLOW_END'	=> ($user->lang['DIRECTION'] == 'ltr') ? 'right' : 'left',
 	));
 
-	// application/xhtml+xml not used because of IE
-	header('Content-type: text/html; charset=UTF-8');
+	// An array of http headers that phpbb will set. The following event may override these.
+	$http_headers = array(
+		// application/xhtml+xml not used because of IE
+		'Content-type' => 'text/html; charset=UTF-8',
+		'Cache-Control' => 'private, no-cache="set-cookie"',
+		'Expires' => '0',
+		'Pragma' => 'no-cache',
+	);
 
-	header('Cache-Control: private, no-cache="set-cookie"');
-	header('Expires: 0');
-	header('Pragma: no-cache');
+	/**
+	* Execute code and/or overwrite _common_ template variables after they have been assigned.
+	*
+	* @event core.adm_page_header_after
+	* @var	string	page_title			Page title
+	* @var	array	http_headers			HTTP headers that should be set by phpbb
+	*
+	* @since 3.1.0-RC3
+	*/
+	$vars = array('page_title', 'http_headers');
+	extract($phpbb_dispatcher->trigger_event('core.adm_page_header_after', compact($vars)));
+
+	foreach ($http_headers as $hname => $hval)
+	{
+		header((string) $hname . ': ' . (string) $hval);
+	}
 
 	return;
 }
diff --git a/phpBB/includes/functions_messenger.php b/phpBB/includes/functions_messenger.php
index 3657a89aa0..045e555d05 100644
--- a/phpBB/includes/functions_messenger.php
+++ b/phpBB/includes/functions_messenger.php
@@ -402,17 +402,9 @@ class messenger
 	*/
 	function generate_message_id()
 	{
-		global $config;
+		global $config, $request;
 
-		$domain = 'phpbb.generated';
-		if ($config['server_name'])
-		{
-			$domain = $config['server_name'];
-		}
-		else if (!empty($_SERVER['SERVER_NAME']))
-		{
-			$domain = $_SERVER['SERVER_NAME'];
-		}
+		$domain = ($config['server_name']) ?: $request->server('SERVER_NAME', 'phpbb.generated');
 
 		return md5(unique_id(time())) . '@' . $domain;
 	}