Merge pull request #116 from kijin/pr/utf8mb4-workaround

모든 DB에서 UTF-8 이모티콘 등을 지원하는 패치

common/functions.php

@@ -5,3 +5,19 @@
  * 
  * Copyright (c) Rhymix Developers and Contributors
  */
+
+/**
+ * Encode UTF-8 characters outside of the Basic Multilingual Plane in the &#xxxxxx format.
+ * This allows emoticons and other characters to be stored in MySQL without utf8mb4 support.
+ * 
+ * @param $str The string to encode
+ * @return string
+ */
+function utf8_mbencode($str)
+{
+	return preg_replace_callback('/[\xF0-\xF7][\x80-\xBF]{3}/', function($m) {
+		$bytes = array(ord($m[0][0]), ord($m[0][1]), ord($m[0][2]), ord($m[0][3]));
+		$codepoint = ((0x07 & $bytes[0]) << 18) + ((0x3F & $bytes[1]) << 12) + ((0x3F & $bytes[2]) << 6) + (0x3F & $bytes[3]);
+		return '&#x' . dechex($codepoint) . ';';
+	}, $str);
+}

modules/comment/comment.controller.php

@@ -357,6 +357,7 @@ class commentController extends comment
 		{
 			$obj->content = removeHackTag($obj->content);
 		}
+		$obj->content = utf8_mbencode($obj->content);
 
 		if(!$obj->notify_message)
 		{
@@ -777,6 +778,7 @@ class commentController extends comment
 		{
 			$obj->content = removeHackTag($obj->content);
 		}
+		$obj->content = utf8_mbencode($obj->content);
 
 		// begin transaction
 		$oDB = DB::getInstance();

modules/communication/communication.controller.php

@@ -132,7 +132,7 @@ class communicationController extends communication
 			$content = sprintf("%s<br /><br />From : <a href=\"%s\" target=\"_blank\">%s</a>", $content, $view_url, $view_url);
 			$oMail = new Mail();
 			$oMail->setTitle($title);
-			$oMail->setContent($content);
+			$oMail->setContent(utf8_mbencode(removeHackTag($content)));
 			$oMail->setSender($logged_info->nick_name, $logged_info->email_address);
 			$oMail->setReceiptor($receiver_member_info->nick_name, $receiver_member_info->email_address);
 			$oMail->send();
@@ -172,8 +172,11 @@ class communicationController extends communication
 	 */
 	function sendMessage($sender_srl, $receiver_srl, $title, $content, $sender_log = TRUE)
 	{
-		$content = removeHackTag($content);
+		// Encode the title and content.
 		$title = htmlspecialchars($title, ENT_COMPAT | ENT_HTML401, 'UTF-8', false);
+		$content = removeHackTag($content);
+		$title = utf8_mbencode($title);
+		$content = utf8_mbencode($content);
 
 		$message_srl = getNextSequence();
 		$related_srl = getNextSequence();

modules/document/document.controller.php

@@ -310,6 +310,10 @@ class documentController extends document
 		// An error appears if both log-in info and user name don't exist.
 		if(!$logged_info->member_srl && !$obj->nick_name) return new Object(-1,'msg_invalid_request');
 
+		// Fix encoding of non-BMP UTF-8 characters.
+		$obj->title = utf8_mbencode($obj->title);
+		$obj->content = utf8_mbencode($obj->content);
+
 		$obj->lang_code = Context::getLangType();
 		// Insert data into the DB
 		if(!$obj->status) $this->_checkDocumentStatusForOldVersion($obj);
@@ -552,6 +556,10 @@ class documentController extends document
 		// if temporary document, regdate is now setting
 		if($source_obj->get('status') == $this->getConfigStatus('temp')) $obj->regdate = date('YmdHis');
 
+		// Fix encoding of non-BMP UTF-8 characters.
+		$obj->title = utf8_mbencode($obj->title);
+		$obj->content = utf8_mbencode($obj->content);
+
 		// Insert data into the DB
 		$output = executeQuery('document.updateDocument', $obj);
 		if(!$output->toBool())