From 9b0ee8d9832edd60b772ee11a18f2e1c4f39e8cf Mon Sep 17 00:00:00 2001
From: Marius Cramer <m.cramer@pixcept.de>
Date: Tue, 03 Feb 2015 04:10:04 -0500
Subject: [PATCH] Merge branch 'master' of git.ispconfig.org:ispconfig/ispconfig3

---
 server/lib/classes/db_mysql.inc.php |   41 +++++++++++++++++++++++++++++++++++------
 1 files changed, 35 insertions(+), 6 deletions(-)

diff --git a/server/lib/classes/db_mysql.inc.php b/server/lib/classes/db_mysql.inc.php
index 51cad86..8075d1f 100644
--- a/server/lib/classes/db_mysql.inc.php
+++ b/server/lib/classes/db_mysql.inc.php
@@ -86,7 +86,7 @@
 			$this->_sqlerror('Zugriff auf Datenbankserver fehlgeschlagen! / Database server not accessible!');
 			return false;
 		}
-		if(!((bool)mysqli_query( $this->_iConnId, "USE $this->dbName"))) {
+		if(!((bool)mysqli_query( $this->_iConnId, 'USE `' . $this->dbName . '`'))) {
 			$this->close();
 			$this->_sqlerror('Datenbank nicht gefunden / Database not found');
 			return false;
@@ -176,7 +176,7 @@
 	private function _query($sQuery = '') {
 		global $app;
 
-		if($this->isConnected == false) return false;
+		//if($this->isConnected == false) return false;
 		if ($sQuery == '') {
 			$this->_sqlerror('Keine Anfrage angegeben / No query given');
 			return false;
@@ -390,6 +390,35 @@
 
 
 	/**
+	 * check if a utf8 string is valid
+	 *
+	 * @access public
+	 * @param string  $string the string to check
+	 * @return bool true if it is valid utf8, false otherwise
+	 */
+	private function check_utf8($str) {
+		$len = strlen($str);
+		for($i = 0; $i < $len; $i++){
+			$c = ord($str[$i]);
+			if ($c > 128) {
+				if (($c > 247)) return false;
+				elseif ($c > 239) $bytes = 4;
+				elseif ($c > 223) $bytes = 3;
+				elseif ($c > 191) $bytes = 2;
+				else return false;
+				if (($i + $bytes) > $len) return false;
+				while ($bytes > 1) {
+					$i++;
+					$b = ord($str[$i]);
+					if ($b < 128 || $b > 191) return false;
+					$bytes--;
+				}
+			}
+		}
+		return true;
+	} // end of check_utf8
+
+	/**
 	 * Escape a string for usage in a query
 	 *
 	 * @access public
@@ -405,16 +434,16 @@
 			$sString = '';
 		}
 
-		/*$cur_encoding = mb_detect_encoding($sString);
+		$cur_encoding = mb_detect_encoding($sString);
 		if($cur_encoding != "UTF-8") {
 			if($cur_encoding != 'ASCII') {
-				$app->log('String ' . substr($sString, 0, 25) . '... is ' . $cur_encoding . '.', LOGLEVEL_WARN);
+				$app->log('String ' . substr($sString, 0, 25) . '... is ' . $cur_encoding . '.', LOGLEVEL_INFO);
 				if($cur_encoding) $sString = mb_convert_encoding($sString, 'UTF-8', $cur_encoding);
 				else $sString = mb_convert_encoding($sString, 'UTF-8');
 			}
-		} elseif(!PXBase::check_utf8($sString)) {
+		} elseif(!$this->check_utf8($sString)) {
 			$sString = utf8_encode($sString);
-		}*/
+		}
 
 		if($this->_iConnId) return mysqli_real_escape_string($this->_iConnId, $sString);
 		else return addslashes($sString);

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