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-rw-r--r--phpBB/phpbb/db/driver/mssqlnative.php613
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diff --git a/phpBB/phpbb/db/driver/mssqlnative.php b/phpBB/phpbb/db/driver/mssqlnative.php
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+<?php
+/**
+*
+* @package dbal
+* @copyright (c) 2010 phpBB Group
+* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2
+*
+* This is the MS SQL Server Native database abstraction layer.
+* PHP mssql native driver required.
+* @author Chris Pucci
+*
+*/
+
+/**
+* @ignore
+*/
+if (!defined('IN_PHPBB'))
+{
+ exit;
+}
+
+/**
+ * Prior to version 1.1 the SQL Server Native PHP driver didn't support sqlsrv_num_rows, or cursor based seeking so we recall all rows into an array
+ * and maintain our own cursor index into that array.
+ */
+class result_mssqlnative
+{
+ public function result_mssqlnative($queryresult = false)
+ {
+ $this->m_cursor = 0;
+ $this->m_rows = array();
+ $this->m_num_fields = sqlsrv_num_fields($queryresult);
+ $this->m_field_meta = sqlsrv_field_metadata($queryresult);
+
+ while ($row = sqlsrv_fetch_array($queryresult, SQLSRV_FETCH_ASSOC))
+ {
+ if ($row !== null)
+ {
+ foreach($row as $k => $v)
+ {
+ if (is_object($v) && method_exists($v, 'format'))
+ {
+ $row[$k] = $v->format("Y-m-d\TH:i:s\Z");
+ }
+ }
+ $this->m_rows[] = $row;//read results into memory, cursors are not supported
+ }
+ }
+
+ $this->m_row_count = sizeof($this->m_rows);
+ }
+
+ private function array_to_obj($array, &$obj)
+ {
+ foreach ($array as $key => $value)
+ {
+ if (is_array($value))
+ {
+ $obj->$key = new stdClass();
+ array_to_obj($value, $obj->$key);
+ }
+ else
+ {
+ $obj->$key = $value;
+ }
+ }
+ return $obj;
+ }
+
+ public function fetch($mode = SQLSRV_FETCH_BOTH, $object_class = 'stdClass')
+ {
+ if ($this->m_cursor >= $this->m_row_count || $this->m_row_count == 0)
+ {
+ return false;
+ }
+
+ $ret = false;
+ $arr_num = array();
+
+ if ($mode == SQLSRV_FETCH_NUMERIC || $mode == SQLSRV_FETCH_BOTH)
+ {
+ foreach($this->m_rows[$this->m_cursor] as $key => $value)
+ {
+ $arr_num[] = $value;
+ }
+ }
+
+ switch ($mode)
+ {
+ case SQLSRV_FETCH_ASSOC:
+ $ret = $this->m_rows[$this->m_cursor];
+ break;
+ case SQLSRV_FETCH_NUMERIC:
+ $ret = $arr_num;
+ break;
+ case 'OBJECT':
+ $ret = $this->array_to_obj($this->m_rows[$this->m_cursor], $o = new $object_class);
+ break;
+ case SQLSRV_FETCH_BOTH:
+ default:
+ $ret = $this->m_rows[$this->m_cursor] + $arr_num;
+ break;
+ }
+ $this->m_cursor++;
+ return $ret;
+ }
+
+ public function get($pos, $fld)
+ {
+ return $this->m_rows[$pos][$fld];
+ }
+
+ public function num_rows()
+ {
+ return $this->m_row_count;
+ }
+
+ public function seek($iRow)
+ {
+ $this->m_cursor = min($iRow, $this->m_row_count);
+ }
+
+ public function num_fields()
+ {
+ return $this->m_num_fields;
+ }
+
+ public function field_name($nr)
+ {
+ $arr_keys = array_keys($this->m_rows[0]);
+ return $arr_keys[$nr];
+ }
+
+ public function field_type($nr)
+ {
+ $i = 0;
+ $int_type = -1;
+ $str_type = '';
+
+ foreach ($this->m_field_meta as $meta)
+ {
+ if ($nr == $i)
+ {
+ $int_type = $meta['Type'];
+ break;
+ }
+ $i++;
+ }
+
+ //http://msdn.microsoft.com/en-us/library/cc296183.aspx contains type table
+ switch ($int_type)
+ {
+ case SQLSRV_SQLTYPE_BIGINT: $str_type = 'bigint'; break;
+ case SQLSRV_SQLTYPE_BINARY: $str_type = 'binary'; break;
+ case SQLSRV_SQLTYPE_BIT: $str_type = 'bit'; break;
+ case SQLSRV_SQLTYPE_CHAR: $str_type = 'char'; break;
+ case SQLSRV_SQLTYPE_DATETIME: $str_type = 'datetime'; break;
+ case SQLSRV_SQLTYPE_DECIMAL/*($precision, $scale)*/: $str_type = 'decimal'; break;
+ case SQLSRV_SQLTYPE_FLOAT: $str_type = 'float'; break;
+ case SQLSRV_SQLTYPE_IMAGE: $str_type = 'image'; break;
+ case SQLSRV_SQLTYPE_INT: $str_type = 'int'; break;
+ case SQLSRV_SQLTYPE_MONEY: $str_type = 'money'; break;
+ case SQLSRV_SQLTYPE_NCHAR/*($charCount)*/: $str_type = 'nchar'; break;
+ case SQLSRV_SQLTYPE_NUMERIC/*($precision, $scale)*/: $str_type = 'numeric'; break;
+ case SQLSRV_SQLTYPE_NVARCHAR/*($charCount)*/: $str_type = 'nvarchar'; break;
+ case SQLSRV_SQLTYPE_NTEXT: $str_type = 'ntext'; break;
+ case SQLSRV_SQLTYPE_REAL: $str_type = 'real'; break;
+ case SQLSRV_SQLTYPE_SMALLDATETIME: $str_type = 'smalldatetime'; break;
+ case SQLSRV_SQLTYPE_SMALLINT: $str_type = 'smallint'; break;
+ case SQLSRV_SQLTYPE_SMALLMONEY: $str_type = 'smallmoney'; break;
+ case SQLSRV_SQLTYPE_TEXT: $str_type = 'text'; break;
+ case SQLSRV_SQLTYPE_TIMESTAMP: $str_type = 'timestamp'; break;
+ case SQLSRV_SQLTYPE_TINYINT: $str_type = 'tinyint'; break;
+ case SQLSRV_SQLTYPE_UNIQUEIDENTIFIER: $str_type = 'uniqueidentifier'; break;
+ case SQLSRV_SQLTYPE_UDT: $str_type = 'UDT'; break;
+ case SQLSRV_SQLTYPE_VARBINARY/*($byteCount)*/: $str_type = 'varbinary'; break;
+ case SQLSRV_SQLTYPE_VARCHAR/*($charCount)*/: $str_type = 'varchar'; break;
+ case SQLSRV_SQLTYPE_XML: $str_type = 'xml'; break;
+ default: $str_type = $int_type;
+ }
+ return $str_type;
+ }
+
+ public function free()
+ {
+ unset($this->m_rows);
+ return;
+ }
+}
+
+/**
+* @package dbal
+*/
+class phpbb_db_driver_mssqlnative extends phpbb_db_driver_mssql_base
+{
+ var $m_insert_id = NULL;
+ var $last_query_text = '';
+ var $query_options = array();
+ var $connect_error = '';
+
+ /**
+ * Connect to server
+ */
+ function sql_connect($sqlserver, $sqluser, $sqlpassword, $database, $port = false, $persistency = false, $new_link = false)
+ {
+ // Test for driver support, to avoid suppressed fatal error
+ if (!function_exists('sqlsrv_connect'))
+ {
+ $this->connect_error = 'Native MS SQL Server driver for PHP is missing or needs to be updated. Version 1.1 or later is required to install phpBB3. You can download the driver from: http://www.microsoft.com/sqlserver/2005/en/us/PHP-Driver.aspx';
+ return $this->sql_error('');
+ }
+
+ //set up connection variables
+ $this->persistency = $persistency;
+ $this->user = $sqluser;
+ $this->dbname = $database;
+ $port_delimiter = (defined('PHP_OS') && substr(PHP_OS, 0, 3) === 'WIN') ? ',' : ':';
+ $this->server = $sqlserver . (($port) ? $port_delimiter . $port : '');
+
+ //connect to database
+ $this->db_connect_id = sqlsrv_connect($this->server, array(
+ 'Database' => $this->dbname,
+ 'UID' => $this->user,
+ 'PWD' => $sqlpassword
+ ));
+
+ return ($this->db_connect_id) ? $this->db_connect_id : $this->sql_error('');
+ }
+
+ /**
+ * Version information about used database
+ * @param bool $raw if true, only return the fetched sql_server_version
+ * @param bool $use_cache If true, it is safe to retrieve the value from the cache
+ * @return string sql server version
+ */
+ function sql_server_info($raw = false, $use_cache = true)
+ {
+ global $cache;
+
+ if (!$use_cache || empty($cache) || ($this->sql_server_version = $cache->get('mssql_version')) === false)
+ {
+ $arr_server_info = sqlsrv_server_info($this->db_connect_id);
+ $this->sql_server_version = $arr_server_info['SQLServerVersion'];
+
+ if (!empty($cache) && $use_cache)
+ {
+ $cache->put('mssql_version', $this->sql_server_version);
+ }
+ }
+
+ if ($raw)
+ {
+ return $this->sql_server_version;
+ }
+
+ return ($this->sql_server_version) ? 'MSSQL<br />' . $this->sql_server_version : 'MSSQL';
+ }
+
+ /**
+ * {@inheritDoc}
+ */
+ function sql_buffer_nested_transactions()
+ {
+ return true;
+ }
+
+ /**
+ * SQL Transaction
+ * @access private
+ */
+ function _sql_transaction($status = 'begin')
+ {
+ switch ($status)
+ {
+ case 'begin':
+ return sqlsrv_begin_transaction($this->db_connect_id);
+ break;
+
+ case 'commit':
+ return sqlsrv_commit($this->db_connect_id);
+ break;
+
+ case 'rollback':
+ return sqlsrv_rollback($this->db_connect_id);
+ break;
+ }
+ return true;
+ }
+
+ /**
+ * Base query method
+ *
+ * @param string $query Contains the SQL query which shall be executed
+ * @param int $cache_ttl Either 0 to avoid caching or the time in seconds which the result shall be kept in cache
+ * @return mixed When casted to bool the returned value returns true on success and false on failure
+ *
+ * @access public
+ */
+ function sql_query($query = '', $cache_ttl = 0)
+ {
+ if ($query != '')
+ {
+ global $cache;
+
+ // EXPLAIN only in extra debug mode
+ if (defined('DEBUG'))
+ {
+ $this->sql_report('start', $query);
+ }
+
+ $this->last_query_text = $query;
+ $this->query_result = ($cache && $cache_ttl) ? $cache->sql_load($query) : false;
+ $this->sql_add_num_queries($this->query_result);
+
+ if ($this->query_result === false)
+ {
+ if (($this->query_result = @sqlsrv_query($this->db_connect_id, $query, array(), $this->query_options)) === false)
+ {
+ $this->sql_error($query);
+ }
+ // reset options for next query
+ $this->query_options = array();
+
+ if (defined('DEBUG'))
+ {
+ $this->sql_report('stop', $query);
+ }
+
+ if ($cache && $cache_ttl)
+ {
+ $this->open_queries[(int) $this->query_result] = $this->query_result;
+ $this->query_result = $cache->sql_save($this, $query, $this->query_result, $cache_ttl);
+ }
+ else if (strpos($query, 'SELECT') === 0 && $this->query_result)
+ {
+ $this->open_queries[(int) $this->query_result] = $this->query_result;
+ }
+ }
+ else if (defined('DEBUG'))
+ {
+ $this->sql_report('fromcache', $query);
+ }
+ }
+ else
+ {
+ return false;
+ }
+ return $this->query_result;
+ }
+
+ /**
+ * Build LIMIT query
+ */
+ function _sql_query_limit($query, $total, $offset = 0, $cache_ttl = 0)
+ {
+ $this->query_result = false;
+
+ // total == 0 means all results - not zero results
+ if ($offset == 0 && $total !== 0)
+ {
+ if (strpos($query, "SELECT") === false)
+ {
+ $query = "TOP {$total} " . $query;
+ }
+ else
+ {
+ $query = preg_replace('/SELECT(\s*DISTINCT)?/Dsi', 'SELECT$1 TOP '.$total, $query);
+ }
+ }
+ else if ($offset > 0)
+ {
+ $query = preg_replace('/SELECT(\s*DISTINCT)?/Dsi', 'SELECT$1 TOP(10000000) ', $query);
+ $query = 'SELECT *
+ FROM (SELECT sub2.*, ROW_NUMBER() OVER(ORDER BY sub2.line2) AS line3
+ FROM (SELECT 1 AS line2, sub1.* FROM (' . $query . ') AS sub1) as sub2) AS sub3';
+
+ if ($total > 0)
+ {
+ $query .= ' WHERE line3 BETWEEN ' . ($offset+1) . ' AND ' . ($offset + $total);
+ }
+ else
+ {
+ $query .= ' WHERE line3 > ' . $offset;
+ }
+ }
+
+ $result = $this->sql_query($query, $cache_ttl);
+
+ return $result;
+ }
+
+ /**
+ * Return number of affected rows
+ */
+ function sql_affectedrows()
+ {
+ return ($this->db_connect_id) ? @sqlsrv_rows_affected($this->query_result) : false;
+ }
+
+ /**
+ * Fetch current row
+ */
+ function sql_fetchrow($query_id = false)
+ {
+ global $cache;
+
+ if ($query_id === false)
+ {
+ $query_id = $this->query_result;
+ }
+
+ if ($cache && $cache->sql_exists($query_id))
+ {
+ return $cache->sql_fetchrow($query_id);
+ }
+
+ if ($query_id === false)
+ {
+ return false;
+ }
+
+ $row = @sqlsrv_fetch_array($query_id, SQLSRV_FETCH_ASSOC);
+
+ if ($row)
+ {
+ foreach ($row as $key => $value)
+ {
+ $row[$key] = ($value === ' ' || $value === NULL) ? '' : $value;
+ }
+
+ // remove helper values from LIMIT queries
+ if (isset($row['line2']))
+ {
+ unset($row['line2'], $row['line3']);
+ }
+ }
+ return (sizeof($row)) ? $row : false;
+ }
+
+ /**
+ * Get last inserted id after insert statement
+ */
+ function sql_nextid()
+ {
+ $result_id = @sqlsrv_query($this->db_connect_id, 'SELECT @@IDENTITY');
+
+ if ($result_id !== false)
+ {
+ $row = @sqlsrv_fetch_array($result_id);
+ $id = $row[0];
+ @sqlsrv_free_stmt($result_id);
+ return $id;
+ }
+ else
+ {
+ return false;
+ }
+ }
+
+ /**
+ * Free sql result
+ */
+ function sql_freeresult($query_id = false)
+ {
+ global $cache;
+
+ if ($query_id === false)
+ {
+ $query_id = $this->query_result;
+ }
+
+ if ($cache->sql_exists($query_id))
+ {
+ return $cache->sql_freeresult($query_id);
+ }
+
+ if (isset($this->open_queries[(int) $query_id]))
+ {
+ unset($this->open_queries[(int) $query_id]);
+ return @sqlsrv_free_stmt($query_id);
+ }
+ return false;
+ }
+
+ /**
+ * return sql error array
+ * @access private
+ */
+ function _sql_error()
+ {
+ if (function_exists('sqlsrv_errors'))
+ {
+ $errors = @sqlsrv_errors(SQLSRV_ERR_ERRORS);
+ $error_message = '';
+ $code = 0;
+
+ if ($errors != null)
+ {
+ foreach ($errors as $error)
+ {
+ $error_message .= "SQLSTATE: " . $error[ 'SQLSTATE'] . "\n";
+ $error_message .= "code: " . $error[ 'code'] . "\n";
+ $code = $error['code'];
+ $error_message .= "message: " . $error[ 'message'] . "\n";
+ }
+ $this->last_error_result = $error_message;
+ $error = $this->last_error_result;
+ }
+ else
+ {
+ $error = (isset($this->last_error_result) && $this->last_error_result) ? $this->last_error_result : array();
+ }
+
+ $error = array(
+ 'message' => $error,
+ 'code' => $code,
+ );
+ }
+ else
+ {
+ $error = array(
+ 'message' => $this->connect_error,
+ 'code' => '',
+ );
+ }
+
+ return $error;
+ }
+
+ /**
+ * Close sql connection
+ * @access private
+ */
+ function _sql_close()
+ {
+ return @sqlsrv_close($this->db_connect_id);
+ }
+
+ /**
+ * Build db-specific report
+ * @access private
+ */
+ function _sql_report($mode, $query = '')
+ {
+ switch ($mode)
+ {
+ case 'start':
+ $html_table = false;
+ @sqlsrv_query($this->db_connect_id, 'SET SHOWPLAN_TEXT ON;');
+ if ($result = @sqlsrv_query($this->db_connect_id, $query))
+ {
+ @sqlsrv_next_result($result);
+ while ($row = @sqlsrv_fetch_array($result))
+ {
+ $html_table = $this->sql_report('add_select_row', $query, $html_table, $row);
+ }
+ }
+ @sqlsrv_query($this->db_connect_id, 'SET SHOWPLAN_TEXT OFF;');
+ @sqlsrv_free_stmt($result);
+
+ if ($html_table)
+ {
+ $this->html_hold .= '</table>';
+ }
+ break;
+
+ case 'fromcache':
+ $endtime = explode(' ', microtime());
+ $endtime = $endtime[0] + $endtime[1];
+
+ $result = @sqlsrv_query($this->db_connect_id, $query);
+ while ($void = @sqlsrv_fetch_array($result))
+ {
+ // Take the time spent on parsing rows into account
+ }
+ @sqlsrv_free_stmt($result);
+
+ $splittime = explode(' ', microtime());
+ $splittime = $splittime[0] + $splittime[1];
+
+ $this->sql_report('record_fromcache', $query, $endtime, $splittime);
+
+ break;
+ }
+ }
+
+ /**
+ * Utility method used to retrieve number of rows
+ * Emulates mysql_num_rows
+ * Used in acp_database.php -> write_data_mssqlnative()
+ * Requires a static or keyset cursor to be definde via
+ * mssqlnative_set_query_options()
+ */
+ function mssqlnative_num_rows($res)
+ {
+ if ($res !== false)
+ {
+ return sqlsrv_num_rows($res);
+ }
+ else
+ {
+ return false;
+ }
+ }
+
+ /**
+ * Allows setting mssqlnative specific query options passed to sqlsrv_query as 4th parameter.
+ */
+ function mssqlnative_set_query_options($options)
+ {
+ $this->query_options = $options;
+ }
+}