inital commit

webroot/forum/inc/tasks/backupdb.php

@@ -0,0 +1,147 @@
+<?php
+/**
+ * MyBB 1.8
+ * Copyright 2014 MyBB Group, All Rights Reserved
+ *
+ * Website: http://www.mybb.com
+ * License: http://www.mybb.com/about/license
+ *
+ */
+
+function task_backupdb($task)
+{
+	global $db, $config, $lang, $plugins;
+	static $contents;
+
+	@set_time_limit(0);
+
+	if(!defined('MYBB_ADMIN_DIR'))
+	{
+		if(!isset($config['admin_dir']))
+		{
+			$config['admin_dir'] = "admin";
+		}
+
+		define('MYBB_ADMIN_DIR', MYBB_ROOT.$config['admin_dir'].'/');
+	}
+
+	// Check if folder is writable, before allowing submission
+	if(!is_writable(MYBB_ADMIN_DIR."/backups"))
+	{
+		add_task_log($task, $lang->task_backup_cannot_write_backup);
+	}
+	else
+	{
+		$db->set_table_prefix('');
+
+		$file = MYBB_ADMIN_DIR.'backups/backup_'.date("_Ymd_His_").random_str(16);
+
+		if(function_exists('gzopen'))
+		{
+			$fp = gzopen($file.'.incomplete.sql.gz', 'w9');
+		}
+		else
+		{
+			$fp = fopen($file.'.incomplete.sql', 'w');
+		}
+
+		$tables = $db->list_tables($config['database']['database'], $config['database']['table_prefix']);
+
+		$time = date('dS F Y \a\t H:i', TIME_NOW);
+		$contents = "-- MyBB Database Backup\n-- Generated: {$time}\n-- -------------------------------------\n\n";
+
+		if(is_object($plugins))
+		{
+			$args = array(
+				'task' =>  &$task,
+				'tables' =>  &$tables,
+			);
+			$plugins->run_hooks('task_backupdb', $args);
+		}
+
+		foreach($tables as $table)
+		{
+			$field_list = array();
+			$fields_array = $db->show_fields_from($table);
+			foreach($fields_array as $field)
+			{
+				$field_list[] = $field['Field'];
+			}
+
+			$fields = "`".implode("`,`", $field_list)."`";
+
+			$structure = $db->show_create_table($table).";\n";
+			$contents .= $structure;
+			clear_overflow($fp, $contents);
+
+			if($db->engine == 'mysqli')
+			{
+				$query = mysqli_query($db->read_link, "SELECT * FROM {$db->table_prefix}{$table}", MYSQLI_USE_RESULT);
+			}
+			else
+			{
+				$query = $db->simple_select($table);
+			}
+
+			while($row = $db->fetch_array($query))
+			{
+				$insert = "INSERT INTO {$table} ($fields) VALUES (";
+				$comma = '';
+				foreach($field_list as $field)
+				{
+					if(!isset($row[$field]) || is_null($row[$field]))
+					{
+						$insert .= $comma."NULL";
+					}
+					else if($db->engine == 'mysqli')
+					{
+						$insert .= $comma."'".mysqli_real_escape_string($db->read_link, $row[$field])."'";
+					}
+					else
+					{
+						$insert .= $comma."'".$db->escape_string($row[$field])."'";
+					}
+					$comma = ',';
+				}
+				$insert .= ");\n";
+				$contents .= $insert;
+				clear_overflow($fp, $contents);
+			}
+			$db->free_result($query);
+		}
+
+		$db->set_table_prefix(TABLE_PREFIX);
+
+		if(function_exists('gzopen'))
+		{
+			gzwrite($fp, $contents);
+			gzclose($fp);
+			rename($file.'.incomplete.sql.gz', $file.'.sql.gz');
+		}
+		else
+		{
+			fwrite($fp, $contents);
+			fclose($fp);
+			rename($file.'.incomplete.sql', $file.'.sql');
+		}
+
+		add_task_log($task, $lang->task_backup_ran);
+	}
+}
+
+// Allows us to refresh cache to prevent over flowing
+function clear_overflow($fp, &$contents)
+{
+	global $mybb;
+
+	if(function_exists('gzopen'))
+	{
+		gzwrite($fp, $contents);
+	}
+	else
+	{
+		fwrite($fp, $contents);
+	}
+
+	$contents = '';
+}