Enano CMS (1.0.x): comparison includes/dbal.php

equal deleted inserted replaced

-:7846d45bd250
+:b2f985e4cef3
 {
 case E_ERROR: case E_USER_ERROR: case E_CORE_ERROR: case E_COMPILE_ERROR: $errtype = 'Error'; break;
 case E_WARNING: case E_USER_WARNING: case E_CORE_WARNING: case E_COMPILE_WARNING: $errtype = 'Warning'; break;
 }
 $debug = debug_backtrace();
-$debug = $debug[2]['file'] . ', line ' . $debug[2]['line'];
+if ( !isset($debug[0]['file']) )
+return false;
+$debug = $debug[0]['file'] . ', line ' . $debug[0]['line'];
 echo "<b>$errtype:</b> $errstr<br />Error source:<pre>$debug</pre>";
 }
 class mysql {
-var $num_queries, $query_backtrace, $latest_result, $latest_query, $_conn, $sql_stack_fields, $sql_stack_values;
+var $num_queries, $query_backtrace, $query_times, $query_sources, $latest_result, $latest_query, $_conn, $sql_stack_fields, $sql_stack_values, $debug;
 var $row = array();
 	var $rowset = array();
 var $errhandler;
 function enable_errorhandler()
 {
+// echo "DBAL: enabling error handler<br />";
 if ( function_exists('debug_backtrace') )
 {
 $this->errhandler = set_error_handler('db_error_handler');
 }
 }
 function disable_errorhandler()
 {
+// echo "DBAL: disabling error handler<br />";
 if ( $this->errhandler )
 {
 set_error_handler($this->errhandler);
 }
 else
 {
 restore_error_handler();
 }
 }
-function sql_backtrace() {
+function sql_backtrace()
-$qb = explode("\n", $this->query_backtrace);
+{
-$bt = '';
+return implode("\n-------------------------------------------------------------------\n", $this->query_backtrace);
-//for($i=sizeof($qb)-1;$i>=0;$i--) {
-for($i=0;$i<sizeof($qb);$i++) {
-$bt .= $qb[$i]."\n";
-}
-return $bt;
 }
 function ensure_connection()
 {
 if(!$this->_conn)
 dc_here('dbal: uhoh!<br />'.mysql_error());
 grinding_halt('Enano is having a problem', '<p>Error: couldn\'t connect to MySQL.<br />'.mysql_error().'</p>');
 }
 // Reset some variables
-$this->query_backtrace = '';
+$this->query_backtrace = array();
+$this->query_times = array();
+$this->query_sources = array();
 $this->num_queries = 0;
+$this->debug = ( defined('ENANO_DEBUG') );
 dc_here('dbal: we\'re in, selecting database...');
 $q = $this->sql_query('USE `'.$dbname.'`;');
 if ( !$q )
 }
 function sql_query($q)
 {
 $this->enable_errorhandler();
+if ( $this->debug && function_exists('debug_backtrace') )
+{
+$backtrace = @debug_backtrace();
+if ( is_array($backtrace) )
+{
+$bt = $backtrace[0];
+if ( isset($backtrace[1]['class']) )
+{
+if ( $backtrace[1]['class'] == 'sessionManager' )
+{
+$bt = $backtrace[1];
+}
+}
+$this->query_sources[$q] = substr($bt['file'], strlen(ENANO_ROOT) + 1) . ', line ' . $bt['line'];
+}
+unset($backtrace);
+}
 $this->num_queries++;
-$this->query_backtrace .= $q . "\n";
+$this->query_backtrace[] = $q;
 $this->latest_query = $q;
 dc_here('dbal: making SQL query:<br /><tt>'.$q.'</tt>');
 // First make sure we have a connection
 if ( !$this->_conn )
 {
 {
 $this->report_query($q);
 grinding_halt('SQL Injection attempt', '<p>Enano has caught and prevented an SQL injection attempt. Your IP address has been recorded and the administrator has been notified.</p><p>Query was:</p><pre>'.htmlspecialchars($q).'</pre>');
 }
+$time_start = microtime_float();
 $r = mysql_query($q, $this->_conn);
+$this->query_times[$q] = microtime_float() - $time_start;
 $this->latest_result = $r;
 $this->disable_errorhandler();
 return $r;
 }
 function sql_unbuffered_query($q)
 {
 $this->enable_errorhandler();
 $this->num_queries++;
-$this->query_backtrace .= '(UNBUFFERED) ' . $q."\n";
+$this->query_backtrace[] = '(UNBUFFERED) ' . $q;
 $this->latest_query = $q;
 dc_here('dbal: making SQL query:<br /><tt>'.$q.'</tt>');
 // First make sure we have a connection
 if ( !$this->_conn )
 {
 {
 $this->report_query($q);
 grinding_halt('SQL Injection attempt', '<p>Enano has caught and prevented an SQL injection attempt. Your IP address has been recorded and the administrator has been notified.</p><p>Query was:</p><pre>'.htmlspecialchars($q).'</pre>');
 }
+$time_start = microtime_float();
 $r = mysql_unbuffered_query($q, $this->_conn);
+$this->query_times[$q] = microtime_float() - $time_start;
 $this->latest_result = $r;
 $this->disable_errorhandler();
 return $r;
 }
 		else
 		{
 			return false;
 		}
 	}
+/**
+* Generates and outputs a report of all the SQL queries made during execution. Should only be called after everything's over with.
+*/
+function sql_report()
+{
+global $db, $session, $paths, $template, $plugins; // Common objects
+if ( !$session->get_permissions('mod_misc') )
+{
+die_friendly('Access denied', '<p>You are not authorized to generate a SQL backtrace.</p>');
+}
+// Create copies of variables that may be changed after header is called
+$backtrace = $this->query_backtrace;
+$times = $this->query_times;
+$template->header();
+echo '<h3>SQL query log and timetable</h3>';
+echo '<div class="tblholder">
+<table border="0" cellspacing="1" cellpadding="4">';
+$i = 0;
+foreach ( $backtrace as $query )
+{
+$i++;
+$unbuffered = false;
+if ( substr($query, 0, 13) == '(UNBUFFERED) ' )
+{
+$query = substr($query, 13);
+$unbuffered = true;
+}
+if ( $i == 1 )
+{
+echo '<tr>
+<th colspan="2">SQL backtrace for a normal page load of ' . htmlspecialchars($paths->cpage['urlname']) . '</th>
+</tr>';
+}
+else
+{
+echo '<tr>
+<th class="subhead" colspan="2">&nbsp;</th>
+</tr>';
+}
+echo '<tr>
+<td class="row2">Query:</td>
+<td class="row1"><pre>' . htmlspecialchars($query) . '</pre></td>
+</tr>
+<tr>
+<td class="row2">Time:</td>
+<td class="row1">' . number_format($this->query_times[$query], 6) . ' seconds</td>
+</tr>
+<tr>
+<td class="row2">Unbuffered:</td>
+<td class="row1">' . ( $unbuffered ? 'Yes' : 'No' ) . '</td>
+</tr>';
+if ( isset($this->query_sources[$query]) )
+{
+echo '<tr>
+<td class="row2">Called from:</td>
+<td class="row1">' . $this->query_sources[$query] . '</td>
+</tr>';
+}
+}
+echo '  </table>
+</div>';
+$template->footer();
+}
 }
 ?>

changeset 229	b2f985e4cef3
parent 222	acfdccf7a2bf
child 231	9a1a32bc2050