Remove hacky Substring support for MSSQL

Substring() is not required for the core functionality and this allows us to get rid of a huge hack...

diff --git a/lib/private/db/statementwrapper.php b/lib/private/db/statementwrapper.php
index 93fabc147caab6e538bb8ff4e812e14777fa4ca5..fb687f1543795e24c9887755b2f7ef67d923d11f 100644 (file)
--- a/lib/private/db/statementwrapper.php
+++ b/lib/private/db/statementwrapper.php
@@ -51,15 +51,6 @@ class OC_DB_StatementWrapper {
                }
                $this->lastArguments = $input;
                if (count($input) > 0) {
-
-                       if (!isset($type)) {
-                               $type = OC_Config::getValue( "dbtype", "sqlite" );
-                       }
-
-                       if ($type == 'mssql') {
-                               $input = $this->tryFixSubstringLastArgumentDataForMSSQL($input);
-                       }
-
                        $result = $this->statement->execute($input);
                } else {
                        $result = $this->statement->execute();
@@ -74,96 +65,6 @@ class OC_DB_StatementWrapper {
                        return $this;
                }
        }
-
-       private function tryFixSubstringLastArgumentDataForMSSQL($input) {
-               $query = $this->statement->getWrappedStatement()->queryString;
-               $pos = stripos ($query, 'SUBSTRING');
-
-               if ( $pos === false) {
-                       return $input;
-               }
-
-               try {
-                       $newQuery = '';
-
-                       $cArg = 0;
-
-                       $inSubstring = false;
-
-                       // Create new query
-                       for ($i = 0; $i < strlen ($query); $i++) {
-                               if ($inSubstring == false) {
-                                       // Defines when we should start inserting values
-                                       if (substr ($query, $i, 9) == 'SUBSTRING') {
-                                               $inSubstring = true;
-                                       }
-                               } else {
-                                       // Defines when we should stop inserting values
-                                       if (substr ($query, $i, 1) == ')') {
-                                               $inSubstring = false;
-                                       }
-                               }
-
-                               if (substr ($query, $i, 1) == '?') {
-                                       // We found a question mark
-                                       if ($inSubstring) {
-                                               $newQuery .= $input[$cArg];
-
-                                               //
-                                               // Remove from input array
-                                               //
-                                               array_splice ($input, $cArg, 1);
-                                       } else {
-                                               $newQuery .= substr ($query, $i, 1);
-                                               $cArg++;
-                                       }
-                               } else {
-                                       $newQuery .= substr ($query, $i, 1);
-                               }
-                       }
-
-                       // The global data we need
-                       $name = OC_Config::getValue( "dbname", "owncloud" );
-                       $host = OC_Config::getValue( "dbhost", "" );
-                       $user = OC_Config::getValue( "dbuser", "" );
-                       $pass = OC_Config::getValue( "dbpassword", "" );
-                       if (strpos($host, ':')) {
-                               list($host, $port) = explode(':', $host, 2);
-                       } else {
-                               $port = false;
-                       }
-                       $opts = array();
-
-                       if ($port) {
-                               $dsn = 'sqlsrv:Server='.$host.','.$port.';Database='.$name;
-                       } else {
-                               $dsn = 'sqlsrv:Server='.$host.';Database='.$name;
-                       }
-
-                       $PDO = new PDO($dsn, $user, $pass, $opts);
-                       $PDO->setAttribute(PDO::ATTR_DEFAULT_FETCH_MODE, PDO::FETCH_ASSOC);
-                       $PDO->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
-
-                       $this->statement = $PDO->prepare($newQuery);
-
-                       $this->lastArguments = $input;
-
-                       return $input;
-               } catch (PDOException $e){
-                       $entry = 'PDO DB Error: "'.$e->getMessage().'"<br />';
-                       $entry .= 'Offending command was: '.$this->statement->queryString .'<br />';
-                       $entry .= 'Input parameters: ' .print_r($input, true).'<br />';
-                       $entry .= 'Stack trace: ' .$e->getTraceAsString().'<br />';
-                       OC_Log::write('core', $entry, OC_Log::FATAL);
-                       OC_User::setUserId(null);
-
-                       // send http status 503
-                       header('HTTP/1.1 503 Service Temporarily Unavailable');
-                       header('Status: 503 Service Temporarily Unavailable');
-                       OC_Template::printErrorPage('Failed to connect to database');
-                       die ($entry);
-               }
-       }
     
        /**
         * provide an alias for fetch