DbHelpers, Connection: improve escapeBinary logic

hex-style for MySQL too, support array values

library/Director/Data/Db/DbConnection.php

@@ -20,15 +20,19 @@ class DbConnection extends IcingaDbConnection
 
     public function quoteBinary($binary)
     {
-        if ($binary instanceof Zend_Db_Expr) {
-            throw new RuntimeException('Trying to escape binary twice');
+        if ($binary === '') {
+            return '';
+        }
+
+        if (is_array($binary)) {
+            return array_map([$this, 'quoteBinary'], $binary);
         }
 
         if ($this->isPgsql()) {
             return new Zend_Db_Expr("'\\x" . bin2hex($binary) . "'");
         }
 
-        return $binary;
+        return new Zend_Db_Expr('0x' . bin2hex($binary));
     }
 
     public function binaryDbResult($value)

library/Director/Db/DbUtil.php

@@ -2,6 +2,14 @@
 
 namespace Icinga\Module\Director\Db;
 
+use gipfl\ZfDb\Adapter\Adapter;
+use gipfl\ZfDb\Adapter\Pdo\Pgsql;
+use gipfl\ZfDb\Expr;
+use Zend_Db_Adapter_Abstract;
+use Zend_Db_Adapter_Pdo_Pgsql;
+use Zend_Db_Expr;
+use function bin2hex;
+use function is_array;
 use function is_resource;
 use function stream_get_contents;
 
@@ -15,4 +23,74 @@ class DbUtil
 
         return $value;
     }
+
+
+    /**
+     * @param string|array $binary
+     * @param Zend_Db_Adapter_Abstract $db
+     * @return Zend_Db_Expr|Zend_Db_Expr[]
+     */
+    public static function quoteBinaryLegacy($binary, $db)
+    {
+        if (is_array($binary)) {
+            return static::quoteArray($binary, 'quoteBinaryLegacy', $db);
+        }
+
+        if ($binary === null) {
+            return null;
+        }
+
+        if ($db instanceof Zend_Db_Adapter_Pdo_Pgsql) {
+            return new Zend_Db_Expr("'\\x" . bin2hex($binary) . "'");
+        }
+
+        return new Zend_Db_Expr('0x' . bin2hex($binary));
+    }
+
+    /**
+     * @param string|array $binary
+     * @param Adapter $db
+     * @return Expr|Expr[]
+     */
+    public static function quoteBinary($binary, $db)
+    {
+        if (is_array($binary)) {
+            return static::quoteArray($binary, 'quoteBinary', $db);
+        }
+
+        if ($binary === null) {
+            return null;
+        }
+
+        if ($db instanceof Pgsql) {
+            return new Expr("'\\x" . bin2hex($binary) . "'");
+        }
+
+        return new Expr('0x' . bin2hex($binary));
+    }
+
+    /**
+     * @param string|array $binary
+     * @param Adapter|Zend_Db_Adapter_Abstract $db
+     * @return Expr|Zend_Db_Expr|Expr[]|Zend_Db_Expr[]
+     */
+    public static function quoteBinaryCompat($binary, $db)
+    {
+        if ($db instanceof Adapter) {
+            return static::quoteBinary($binary, $db);
+        }
+
+        return static::quoteBinaryLegacy($binary, $db);
+    }
+
+    protected static function quoteArray($array, $method, $db)
+    {
+        $result = [];
+        foreach ($array as $bin) {
+            $quoted = static::$method($bin, $db);
+            $result[] = $quoted;
+        }
+
+        return $result;
+    }
 }

library/Director/Web/Table/DbHelper.php

@@ -17,11 +17,19 @@ trait DbHelper
 
     public function quoteBinary($binary)
     {
+        if ($binary === '') {
+            return '';
+        }
+
+        if (is_array($binary)) {
+            return array_map([$this, 'quoteBinary'], $binary);
+        }
+
         if ($this->isPgsql()) {
             return new Expr("'\\x" . bin2hex($binary) . "'");
         }
 
-        return $binary;
+        return new Expr('0x' . bin2hex($binary));
     }
 
     public function isPgsql()