/core/class.update.php

<?php

/****************************************************************************/

/*  					< MangosWeb Enhanced v3 >  							*/

/*              Copyright (C) <2009 - 2011>  <Wilson212>                    */

/*						  < http://keyswow.com >							*/

/*																			*/

/*			Original MangosWeb (C) 2007, Sasha, Nafe, TGM, Peec				*/

/****************************************************************************/

/*																			*/

/*  Update class for MangosWeb Enhanced. You the user are NOT allowed to	*/ 

/*	copy any of this code, and/or use it for any purpose other than to 		*/

/*	update MangosWeb Enhanced.        										*/

/****************************************************************************/



class Update

{

	var $current_version;

	var $server_version;

	var $update_version;

	var $updated_files_list = array();

	var $update_delete = array();

	var $update_make_dir = array();

	var $update_remove_dir = array();

	var $writable_files;

	var $charlen_file;

	var $updates;

	

	function Update()

	{

		global $Core;

		$this->server_address = 'http://update.keyswow.com/mangoswebv3/';

		$this->current_version = $Core->version;

		$this->handle = FALSE;

	}

	

//	************************************************************	

// Standard check to see if the server is online function



	function connect()

	{

		$this->handle = @fsockopen('www.keyswow.com', 80, $errno, $errstr, 5);

		if($this->handle)

		{

			return TRUE;

		}

		else

		{

			return FALSE;

		}

	}



//	************************************************************		

// This function should always be used FIRST! checks to  see if server is online, 

// and if there's updates



	function check_for_updates() 

	{

		$connection = $this->connect();

		if($connection == TRUE)

		{

			$this->updates = file_get_contents("". $this->server_address ."updates.txt");

			$ups = explode(",", $this->updates );

			$this->newest = $ups['0'];

			if($this->current_version != $this->newest)

			{

				return 1;

			}

			else

			{

				return 2;

			}

		}

		else

		{

			return 0;

		}

	}



//	************************************************************		

// If there is updates, then this function returns the next update version number.



	function get_next_update()

	{

		$ups = explode(",", $this->updates );

		

		// Ok, so we need the next update, but first we need to find, where in the array is out current version

		foreach($ups as $key => $value)

		{

			if($value == $this->current_version)

			{

				$tmp_version = $key;

				// Now that we have our postion, we subtract 1, to get the next update version

				$newkey = $tmp_version - 1;

			}

		}

		$this->update_version = $ups[$newkey];

		$this->get_server_variables();

		return $this->update_version;

	}



//	************************************************************	

// This function get the list of all update variables such as

// make dir, remove file, update file etc etc.



	function get_server_variables() 

	{

		$variables_file_address = $this->server_address."update_". (string)$this->update_version ."/update_vars.php";

		$file = file($variables_file_address);

		foreach ($file as $line) 

		{

			if(strstr($line,"[update_version]") !== false)

			{

				$this->server_version = trim(substr($line,strpos($line,"=")+1));

			}

			elseif(strstr($line,"[update_info]") !== false)

			{

				$this->update_info[] = trim(substr($line,strpos($line,"=")+1));

			}

			elseif(strstr($line,"[update_make_dir]") !== false)

			{

				$this->update_make_dir[] = trim(substr($line,strpos($line,"=")+1));

			}

			elseif(strstr($line,"[update_remove_dir]") !== false)

			{

				$this->update_remove_dir[] = trim(substr($line,strpos($line,"=")+1));

			}

			elseif(strstr($line,"[update_delete]") !== false)

			{

				$this->update_delete[] = trim(substr($line,strpos($line,"=")+1));

			}

			elseif(strstr($line,"[update_file_list]") !== false)

			{

				$this->updated_files_list[] = trim(substr($line,strpos($line,"=")+1));

			}

			elseif(strstr($line,"[charlen_file]") !== false)

			{

				$this->charlen_file[] = trim(substr($line,strpos($line,"=")+1));

			}

		}

	}



//	************************************************************	

// Prints updated file list



	function print_updated_files_list() 

	{

		$filelist = "";

		foreach ($this->updated_files_list as $filename) 

		{

			$filelist .= $filename."<br />";

		}

		return $filelist;

	}

	

//	************************************************************	

// Prints Delete File list



	function print_delete_files_list() 

	{

		$filelist = "";

		if(count($this->update_delete) > 0)

		{

			foreach($this->update_delete as $filename) 

			{

				$filelist .= $filename."<br />";

			}

		}

		else

		{

			echo "None";

		}

		return $filelist;

	}



//	************************************************************

// Prints the Update information info

	

	function print_update_info()

		{

		$infolist = "";

		foreach ($this->update_info as $desc) 

		{

			$infolist .= $desc."<br />";

		}

		return $infolist;

	}



//	************************************************************	

// This function checks to see if a file is writable



	private function is__writable($path) 

	{

		//Make sure to use a "/" after trailing folders

	    if ($path{strlen($path)-1} == '/') // recursively return a temporary file path

		{

	        return is__writable($path.uniqid(mt_rand()).'.tmp');

		}

	    else if (is_dir($path))

		{

	        return is__writable($path.'/'.uniqid(mt_rand()).'.tmp');

		}

	    // check tmp file for read/write capabilities

	    $rm = file_exists($path);

	    $f = @fopen($path, 'a');

	    if ($f == false)

		{

	        return FALSE;

		}

	    fclose($f);

	    if (!$rm)

		{

	        unlink($path);

		}

	    return TRUE;

	}



//	************************************************************		

// Checks if the all the files in the update are writable



	function check_if_are_writable() 

	{

		$err = 0;

		foreach ($this->updated_files_list as $filename) 

		{

			if($this->is__writable($filename) == TRUE) 

			{

				$this->writable_files[$filename] = "yes";

			} 

			else 

			{

				$this->writable_files[$filename] = "no";

				$err++;

			}

		}

		if($err == 0)

		{

			$return = TRUE;

		}

		else

		{

			$return = FALSE;

		}

		return $return;

	}



//	************************************************************	

// Gets the total character length of all updated files

// Can be used for like a progress bar



	function get_total_charlen() 

	{

		$total_len = 0;

		foreach($this->charlen_file as $len) 

		{

			$total_len += $len;

		}

		return $total_len;

	}

	

//	************************************************************	

// Makes all the directories from the update list



	function makeDirs() 

	{

		$mkerr = 0;

		$count = count($this->update_make_dir);

		if($count > 0)

		{

			foreach($this->update_make_dir as $mkdir) 

			{

				// First check to see if the directory already exists

				$check = @opendir($mkdir);

				if($check)

				{

					@closedir($check);

				}

				else

				{

					// We need to make the directory

					$make = @mkdir($mkdir, 0775);

					if(!$make)

					{

						$mkerr++;

					}

				}

			}

			if($mkerr == 0)

			{

				return TRUE;

			}

			else

			{

				return FALSE;

			}

		}

		else

		{

			return TRUE;

		}

	}

	

//	************************************************************	

// Removes all the directories from the update list



	function removeDirs() 

	{

		$rmerr = 0;

		$count = count($this->update_remove_dir);

		if($count > 0)

		{

			foreach($this->update_remove_dir as $remove) 

			{

				// First check to see if the directory already exists

				$check = @opendir($remove);

				if($check)

				{

					@closedir($check);

				}

				else

				{

					return FALSE;

				}



				// We need to revmove the directory

				$rm = @rmdir($remove);

				if(!$rm)

				{

					$rmerr++;

				}

			}

			if($rmerr == 0)

			{

				return TRUE;

			}

			else

			{

				return FALSE;

			}

		}

		else

		{

			return TRUE;

		}

	}



//	************************************************************		

// Main update function



	function update_files()

	{

		$err = "";



		// Delete files			

		if(count($this->update_delete) > 0)

		{

			foreach($this->update_delete as $unlinkf)

			{

				$unlink = @unlink($unlinkf);

				if(!$unlink)

				{

					echo $filename." <font color='red'>Problem Removing File!</font><br />";

				}

				else

				{

					echo $filename." <font color='green'>Removed Successfully!</font><br />";

				}

			}

		}

			

		if($this->check_if_are_writable() == TRUE) 

		{

			$i = 0;

			$len_till_now = 0;

			

			// Update Files Loop

			foreach($this->updated_files_list as $filename) 

			{

				// Start by replacing .php to .upd, and using file_get_contents

				$updated_file_url = $this->server_address."/update_".$this->update_version."/".str_replace(".php",".upd",$filename);

				$updated_file_contents = file_get_contents($updated_file_url);



				// As long as the file isnt empty, lets use fopen, and fwrite to put the contents in the file.

				if($updated_file_contents != "") 

				{

					$file = fopen($filename,"w");

					fwrite($file, $updated_file_contents);

					fclose($file);

				}

				

				// next 2 lines can be used for a future progress bar. Calculates the total

				// character length of all update files, and turns that into a percentage

				$len_till_now += $this->charlen_file[$i];

				$perc = $len_till_now * 100 / $this->get_total_charlen();

				

				echo $filename." <font color='green'>Updated Successfully!</font><br />";

				ob_flush();

				flush();

				$i++;

			}

			

			// These next few lines are for the server to get statistics. The update server will log your servers

			// Address so we can get a good count on how many users are using mangosweb, and how many are updating

			$open_add = $this->server_address ."index.php?server=".$_SERVER['HTTP_HOST']."&update=".$this->update_version;

			$calc = @fopen($open_add, 'r');

			if($calc)

			{

				@fclose($calc);

			}

			return TRUE;

		} 

		else 

		{

			$err .= "<font color='red'>An error occured while updating. Some files where not writable by the server!</font>";

			foreach ($this->writable_files as $id => $value) 

			{

				if($value == "no") 

				{

					echo $id." file is <font color='red'><i>not writable!</i></font><br>";

				}

			}

			$err .= "<font color='red'>No file(s) were updated.<br></font>";

			return $err;

		}

	}

}

?>