import of scuttle 0.7.2

git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@1 b3834d28-1941-0410-a4f8-b48e95affb8f

1 files changed, 552 insertions, 0 deletions

diff --git a/includes/db/mysql.php b/includes/db/mysql.php
new file mode 100644
index 0000000..a646e0d
--- /dev/null
+++ b/includes/db/mysql.php
@@ -0,0 +1,552 @@
+<?php
+/** 
+*
+* @package dbal_mysql
+* @version $Id: mysql.php,v 1.5 2006/02/10 01:30:19 scronide Exp $
+* @copyright (c) 2005 phpBB Group 
+* @license http://opensource.org/licenses/gpl-license.php GNU Public License 
+*
+*/
+
+/**
+* @ignore
+*/
+if (!defined('SQL_LAYER'))
+{
+
+define('SQL_LAYER', 'mysql');
+
+/**
+* @package dbal_mysql
+* MySQL Database Abstraction Layer
+* Minimum Requirement is 3.23+/4.0+/4.1+
+*/
+class sql_db
+{
+	var $db_connect_id;
+	var $query_result;
+	var $return_on_error = false;
+	var $transaction = false;
+	var $sql_time = 0;
+	var $num_queries = 0;
+	var $open_queries = array();
+
+	function sql_connect($sqlserver, $sqluser, $sqlpassword, $database, $port = false, $persistency = false)
+	{
+		$this->persistency = $persistency;
+		$this->user = $sqluser;
+		$this->server = $sqlserver . (($port) ? ':' . $port : '');
+		$this->dbname = $database;
+
+		$this->db_connect_id = ($this->persistency) ? @mysql_pconnect($this->server, $this->user, $sqlpassword) : @mysql_connect($this->server, $this->user, $sqlpassword);
+
+		if ($this->db_connect_id && $this->dbname != '')
+		{
+			if (@mysql_select_db($this->dbname))
+			{
+				return $this->db_connect_id;
+			}
+		}
+
+		return $this->sql_error('');
+	}
+
+	//
+	// Other base methods
+	//
+	function sql_close()
+	{
+		if (!$this->db_connect_id)
+		{
+			return false;
+		}
+
+		if (sizeof($this->open_queries))
+		{
+			foreach ($this->open_queries as $i_query_id => $query_id)
+			{
+				@mysql_free_result($query_id);
+			}
+		}
+
+		return @mysql_close($this->db_connect_id);
+	}
+
+	function sql_return_on_error($fail = false)
+	{
+		$this->return_on_error = $fail;
+	}
+
+	function sql_num_queries()
+	{
+		return $this->num_queries;
+	}
+
+	function sql_transaction($status = 'begin')
+	{
+		switch ($status)
+		{
+			case 'begin':
+				$result = @mysql_query('BEGIN', $this->db_connect_id);
+				$this->transaction = true;
+				break;
+
+			case 'commit':
+				$result = @mysql_query('COMMIT', $this->db_connect_id);
+				$this->transaction = false;
+				
+				if (!$result)
+				{
+					@mysql_query('ROLLBACK', $this->db_connect_id);
+				}
+				break;
+
+			case 'rollback':
+				$result = @mysql_query('ROLLBACK', $this->db_connect_id);
+				$this->transaction = false;
+				break;
+
+			default:
+				$result = true;
+		}
+
+		return $result;
+	}
+
+	// Base query method
+	function sql_query($query = '', $cache_ttl = 0)
+	{
+		if ($query != '')
+		{
+			global $cache;
+
+			// EXPLAIN only in extra debug mode
+			if (defined('DEBUG_EXTRA'))
+			{
+				$this->sql_report('start', $query);
+			}
+
+			$this->query_result = ($cache_ttl && method_exists($cache, 'sql_load')) ? $cache->sql_load($query) : false;
+
+			if (!$this->query_result)
+			{
+				$this->num_queries++;
+
+				if (($this->query_result = @mysql_query($query, $this->db_connect_id)) === false)
+				{
+					$this->sql_error($query);
+				}
+
+				if (defined('DEBUG_EXTRA'))
+				{
+					$this->sql_report('stop', $query);
+				}
+
+				if ($cache_ttl && method_exists($cache, 'sql_save'))
+				{
+					$this->open_queries[(int) $this->query_result] = $this->query_result;
+					$cache->sql_save($query, $this->query_result, $cache_ttl);
+					// mysql_free_result called within sql_save()
+				}
+				else if (strpos($query, 'SELECT') !== false && $this->query_result)
+				{
+					$this->open_queries[(int) $this->query_result] = $this->query_result;
+				}
+			}
+			else if (defined('DEBUG_EXTRA'))
+			{
+				$this->sql_report('fromcache', $query);
+			}
+		}
+		else
+		{
+			return false;
+		}
+
+		return ($this->query_result) ? $this->query_result : false;
+	}
+
+	function sql_query_limit($query, $total, $offset = 0, $cache_ttl = 0) { 
+		if ($query != '') {
+            $this->query_result = false; 
+
+			// only limit the number of rows if $total is greater than 0
+			if ($total > 0)
+    			$query .= "\n LIMIT " . ((!empty($offset)) ? $offset . ', ' . $total : $total);
+
+			return $this->sql_query($query, $cache_ttl); 
+		} else { 
+            return false; 
+		} 
+	}
+
+	// Idea for this from Ikonboard
+	function sql_build_array($query, $assoc_ary = false)
+	{
+		if (!is_array($assoc_ary))
+		{
+			return false;
+		}
+
+		$fields = array();
+		$values = array();
+		if ($query == 'INSERT')
+		{
+			foreach ($assoc_ary as $key => $var)
+			{
+				$fields[] = $key;
+
+				if (is_null($var))
+				{
+					$values[] = 'NULL';
+				}
+				elseif (is_string($var))
+				{
+					$values[] = "'" . $this->sql_escape($var) . "'";
+				}
+				else
+				{
+					$values[] = (is_bool($var)) ? intval($var) : $var;
+				}
+			}
+
+			$query = ' (' . implode(', ', $fields) . ') VALUES (' . implode(', ', $values) . ')';
+		}
+		else if ($query == 'UPDATE' || $query == 'SELECT')
+		{
+			$values = array();
+			foreach ($assoc_ary as $key => $var)
+			{
+				if (is_null($var))
+				{
+					$values[] = "$key = NULL";
+				}
+				elseif (is_string($var))
+				{
+					$values[] = "$key = '" . $this->sql_escape($var) . "'";
+				}
+				else
+				{
+					$values[] = (is_bool($var)) ? "$key = " . intval($var) : "$key = $var";
+				}
+			}
+			$query = implode(($query == 'UPDATE') ? ', ' : ' AND ', $values);
+		}
+
+		return $query;
+	}
+
+	// Other query methods
+	//
+	// NOTE :: Want to remove _ALL_ reliance on sql_numrows from core code ...
+	//         don't want this here by a middle Milestone
+	function sql_numrows($query_id = false)
+	{
+		if (!$query_id)
+		{
+			$query_id = $this->query_result;
+		}
+
+		return ($query_id) ? @mysql_num_rows($query_id) : false;
+	}
+
+	function sql_affectedrows()
+	{
+		return ($this->db_connect_id) ? @mysql_affected_rows($this->db_connect_id) : false;
+	}
+
+	function sql_fetchrow($query_id = false)
+	{
+		global $cache;
+
+		if (!$query_id)
+		{
+			$query_id = $this->query_result;
+		}
+
+		if (isset($cache->sql_rowset[$query_id]))
+		{
+			return $cache->sql_fetchrow($query_id);
+		}
+
+		return ($query_id) ? @mysql_fetch_assoc($query_id) : false;
+	}
+
+	function sql_fetchrowset($query_id = false)
+	{
+		if (!$query_id)
+		{
+			$query_id = $this->query_result;
+		}
+
+		if ($query_id)
+		{
+			unset($this->rowset[$query_id]);
+			unset($this->row[$query_id]);
+
+			$result = array();
+			while ($this->rowset[$query_id] = $this->sql_fetchrow($query_id))
+			{
+				$result[] = $this->rowset[$query_id];
+			}
+			return $result;
+		}
+		
+		return false;
+	}
+
+	function sql_fetchfield($field, $rownum = -1, $query_id = false)
+	{
+		if (!$query_id)
+		{
+			$query_id = $this->query_result;
+		}
+
+		if ($query_id)
+		{
+			if ($rownum > -1)
+			{
+				$result = @mysql_result($query_id, $rownum, $field);
+			}
+			else
+			{
+				if (empty($this->row[$query_id]) && empty($this->rowset[$query_id]))
+				{
+					if ($this->sql_fetchrow($query_id))
+					{
+						$result = $this->row[$query_id][$field];
+					}
+				}
+				else
+				{
+					if ($this->rowset[$query_id])
+					{
+						$result = $this->rowset[$query_id][$field];
+					}
+					elseif ($this->row[$query_id])
+					{
+						$result = $this->row[$query_id][$field];
+					}
+				}
+			}
+			return $result;
+		}
+		return false;
+	}
+
+	function sql_rowseek($rownum, $query_id = false)
+	{
+		if (!$query_id)
+		{
+			$query_id = $this->query_result;
+		}
+
+		return ($query_id) ? @mysql_data_seek($query_id, $rownum) : false;
+	}
+
+	function sql_nextid()
+	{
+		return ($this->db_connect_id) ? @mysql_insert_id($this->db_connect_id) : false;
+	}
+
+	function sql_freeresult($query_id = false)
+	{
+		if (!$query_id)
+		{
+			$query_id = $this->query_result;
+		}
+
+		if (isset($this->open_queries[(int) $query_id]))
+		{
+			unset($this->open_queries[(int) $query_id]);
+			return @mysql_free_result($query_id);
+		}
+
+		return false;
+	}
+
+	function sql_escape($msg) {
+		if (function_exists('mysql_real_escape_string')) {
+			return @mysql_real_escape_string($msg, $this->db_connect_id);
+		} else {
+			return mysql_escape_string($msg);
+		}		
+	}
+	
+	function sql_error($sql = '')
+	{
+		if (!$this->return_on_error)
+		{
+			$this_page = (isset($_SERVER['PHP_SELF']) && !empty($_SERVER['PHP_SELF'])) ? $_SERVER['PHP_SELF'] : $_ENV['PHP_SELF'];
+			$this_page .= '&' . ((isset($_SERVER['QUERY_STRING']) && !empty($_SERVER['QUERY_STRING'])) ? $_SERVER['QUERY_STRING'] : (isset($_ENV['QUERY_STRING']) ? $_ENV['QUERY_STRING'] : ''));
+
+			$message = '<u>SQL ERROR</u> [ ' . SQL_LAYER . ' ]<br /><br />' . @mysql_error() . '<br /><br /><u>CALLING PAGE</u><br /><br />'  . htmlspecialchars($this_page) . (($sql != '') ? '<br /><br /><u>SQL</u><br /><br />' . $sql : '') . '<br />';
+
+			if ($this->transaction)
+			{
+				$this->sql_transaction('rollback');
+			}
+			
+			trigger_error($message, E_USER_ERROR);
+		}
+
+		$result = array(
+			'message'	=> @mysql_error(),
+			'code'		=> @mysql_errno()
+		);
+
+		return $result;
+	}
+
+	function sql_report($mode, $query = '')
+	{
+		if (empty($_GET['explain']))
+		{
+			return;
+		}
+
+		global $db, $cache, $starttime, $phpbb_root_path;
+		static $curtime, $query_hold, $html_hold;
+		static $sql_report = '';
+		static $cache_num_queries = 0;
+
+		if (!$query && !empty($query_hold))
+		{
+			$query = $query_hold;
+		}
+
+		switch ($mode)
+		{
+			case 'display':
+				if (!empty($cache))
+				{
+					$cache->unload();
+				}
+				$db->sql_close();
+
+				$mtime = explode(' ', microtime());
+				$totaltime = $mtime[0] + $mtime[1] - $starttime;
+
+				echo '<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html; charset=iso-8869-1"><meta http-equiv="Content-Style-Type" content="text/css"><link rel="stylesheet" href="' . $phpbb_root_path . 'adm/subSilver.css" type="text/css"><style type="text/css">' . "\n";
+				echo 'th { background-image: url(\'' . $phpbb_root_path . 'adm/images/cellpic3.gif\') }' . "\n";
+				echo 'td.cat	{ background-image: url(\'' . $phpbb_root_path . 'adm/images/cellpic1.gif\') }' . "\n";
+				echo '</style><title>' . $msg_title . '</title></head><body>';
+				echo '<table width="100%" cellspacing="0" cellpadding="0" border="0"><tr><td><a href="' . htmlspecialchars(preg_replace('/&explain=([^&]*)/', '', $_SERVER['REQUEST_URI'])) . '"><img src="' . $phpbb_root_path . 'adm/images/header_left.jpg" width="200" height="60" alt="phpBB Logo" title="phpBB Logo" border="0"/></a></td><td width="100%" background="' . $phpbb_root_path . 'adm/images/header_bg.jpg" height="60" align="right" nowrap="nowrap"><span class="maintitle">SQL Report</span> &nbsp; &nbsp; &nbsp;</td></tr></table><br clear="all"/><table width="95%" cellspacing="1" cellpadding="4" border="0" align="center"><tr><td height="40" align="center" valign="middle"><b>Page generated in ' . round($totaltime, 4) . " seconds with {$this->num_queries} queries" . (($cache_num_queries) ? " + $cache_num_queries " . (($cache_num_queries == 1) ? 'query' : 'queries') . ' returning data from cache' : '') . '</b></td></tr><tr><td align="center" nowrap="nowrap">Time spent on MySQL queries: <b>' . round($this->sql_time, 5) . 's</b> | Time spent on PHP: <b>' . round($totaltime - $this->sql_time, 5) . 's</b></td></tr></table><table width="95%" cellspacing="1" cellpadding="4" border="0" align="center"><tr><td>';
+				echo $sql_report;
+				echo '</td></tr></table><br /></body></html>';
+				exit;
+				break;
+
+			case 'start':
+				$query_hold = $query;
+				$html_hold = '';
+
+				$explain_query = $query;
+				if (preg_match('/UPDATE ([a-z0-9_]+).*?WHERE(.*)/s', $query, $m))
+				{
+					$explain_query = 'SELECT * FROM ' . $m[1] . ' WHERE ' . $m[2];
+				}
+				elseif (preg_match('/DELETE FROM ([a-z0-9_]+).*?WHERE(.*)/s', $query, $m))
+				{
+					$explain_query = 'SELECT * FROM ' . $m[1] . ' WHERE ' . $m[2];
+				}
+
+				if (preg_match('/^SELECT/', $explain_query))
+				{
+					$html_table = FALSE;
+
+					if ($result = mysql_query("EXPLAIN $explain_query", $this->db_connect_id))
+					{
+						while ($row = mysql_fetch_assoc($result))
+						{
+							if (!$html_table && sizeof($row))
+							{
+								$html_table = TRUE;
+								$html_hold .= '<table class="bg" width="100%" cellspacing="1" cellpadding="4" border="0" align="center"><tr>';
+								
+								foreach (array_keys($row) as $val)
+								{
+									$html_hold .= '<th nowrap="nowrap">' . (($val) ? ucwords(str_replace('_', ' ', $val)) : '&nbsp;') . '</th>';
+								}
+								$html_hold .= '</tr>';
+							}
+							$html_hold .= '<tr>';
+
+							$class = 'row1';
+							foreach (array_values($row) as $val)
+							{
+								$class = ($class == 'row1') ? 'row2' : 'row1';
+								$html_hold .= '<td class="' . $class . '">' . (($val) ? $val : '&nbsp;') . '</td>';
+							}
+							$html_hold .= '</tr>';
+						}
+					}
+
+					if ($html_table)
+					{
+						$html_hold .= '</table>';
+					}
+				}
+
+				$curtime = explode(' ', microtime());
+				$curtime = $curtime[0] + $curtime[1];
+				break;
+
+			case 'fromcache':
+				$endtime = explode(' ', microtime());
+				$endtime = $endtime[0] + $endtime[1];
+
+				$result = mysql_query($query, $this->db_connect_id);
+				while ($void = mysql_fetch_assoc($result))
+				{
+					// Take the time spent on parsing rows into account
+				}
+				$splittime = explode(' ', microtime());
+				$splittime = $splittime[0] + $splittime[1];
+
+				$time_cache = $endtime - $curtime;
+				$time_db = $splittime - $endtime;
+				$color = ($time_db > $time_cache) ? 'green' : 'red';
+
+				$sql_report .= '<hr width="100%"/><br /><table class="bg" width="100%" cellspacing="1" cellpadding="4" border="0"><tr><th>Query results obtained from the cache</th></tr><tr><td class="row1"><textarea style="font-family:\'Courier New\',monospace;width:100%" rows="5">' . preg_replace('/\t(AND|OR)(\W)/', "\$1\$2", htmlspecialchars(preg_replace('/[\s]*[\n\r\t]+[\n\r\s\t]*/', "\n", $query))) . '</textarea></td></tr></table><p align="center">';
+
+				$sql_report .= 'Before: ' . sprintf('%.5f', $curtime - $starttime) . 's | After: ' . sprintf('%.5f', $endtime - $starttime) . 's | Elapsed [cache]: <b style="color: ' . $color . '">' . sprintf('%.5f', ($time_cache)) . 's</b> | Elapsed [db]: <b>' . sprintf('%.5f', $time_db) . 's</b></p>';
+
+				// Pad the start time to not interfere with page timing
+				$starttime += $time_db;
+
+				mysql_free_result($result);
+				$cache_num_queries++;
+				break;
+
+			case 'stop':
+				$endtime = explode(' ', microtime());
+				$endtime = $endtime[0] + $endtime[1];
+
+				$sql_report .= '<hr width="100%"/><br /><table class="bg" width="100%" cellspacing="1" cellpadding="4" border="0"><tr><th>Query #' . $this->num_queries . '</th></tr><tr><td class="row1"><textarea style="font-family:\'Courier New\',monospace;width:100%" rows="5">' . preg_replace('/\t(AND|OR)(\W)/', "\$1\$2", htmlspecialchars(preg_replace('/[\s]*[\n\r\t]+[\n\r\s\t]*/', "\n", $query))) . '</textarea></td></tr></table> ' . $html_hold . '<p align="center">';
+
+				if ($this->query_result)
+				{
+					if (preg_match('/^(UPDATE|DELETE|REPLACE)/', $query))
+					{
+						$sql_report .= "Affected rows: <b>" . $this->sql_affectedrows($this->query_result) . '</b> | ';
+					}
+					$sql_report .= 'Before: ' . sprintf('%.5f', $curtime - $starttime) . 's | After: ' . sprintf('%.5f', $endtime - $starttime) . 's | Elapsed: <b>' . sprintf('%.5f', $endtime - $curtime) . 's</b>';
+				}
+				else
+				{
+					$error = $this->sql_error();
+					$sql_report .= '<b style="color: red">FAILED</b> - MySQL Error ' . $error['code'] . ': ' . htmlspecialchars($error['message']);
+				}
+
+				$sql_report .= '</p>';
+
+				$this->sql_time += $endtime - $curtime;
+				break;
+		}
+	}
+} // class sql_db
+
+} // if ... define
+
+?>
\ No newline at end of file