selfupdate.php

<?php
/*selfUpdate.php is the opposite function of scanModified.php. Its purpose is to retrieve the RSS feed of updated files from the mothership and download the files into the appropriate locations.

Created By Helena F Deus (helenadeus@gmail.com) as part of the S3DB package.
15-Apr-2008
*/
ini_set('display_errors',0);
	if($_REQUEST['su3d'])
	ini_set('display_errors',1);
if(file_exists('config.inc.php'))
	{
		include('config.inc.php');
	}
	else
	{
		Header('Location: index.php');
		exit;
	}

include('rdfheader.inc.php');
include_once('core.header.php');
#include('s3dbcore/move2s3db.php');

if($user_id!='1')
{
echo "Only Admin can run the selfupdate.";
exit;

}
#ini_set('display_errors', '1');
ini_set('allow_url_fopen','1');
ini_set('allow_call_time_pass_reference','1');
###
#Retrieve the new updates.rdf from the mothership
#$url2call = $GLOBALS['s3db_info']['deployment']['mothership'].'/s3dbupdates.rdf';
$codeSource = ($GLOBALS['s3db_info']['deployment']['code_source']!='')?$GLOBALS['s3db_info']['deployment']['code_source']:$GLOBALS['s3db_info']['deployment']['mothership'];

$url2call = $codeSource.'scanModified.php?&date='.$_REQUEST['date']; #This is the mothership's dynamic url.

$fid = fopen($url2call, 'r');
###
#Read the url2call into a local file
$mothershipData = stream_get_contents($fid);
#echo $url2call;exit;
#echo $mothershipData;
if($mothershipData!='')
{$remoteFile = $GLOBALS['uploads'].'tmps3db/remote'.date('Ymd_Gis').'.rdf';
//echo $remoteFile;exit;
file_put_contents($remoteFile, $mothershipData);
###
#Read the old file (old is always moved to extras when there is a new one) and compare it with the most recent one
if(!is_file(S3DB_SERVER_ROOT.'/s3dbupdates.rdf'))
	{
	$emptyRDF = '<?xml version="1.0" encoding="UTF-8" ?>
<rdf:RDF
   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
   xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#"
   xmlns:xsd="http://www.w3.org/2001/XMLSchema#"
   xmlns:owl="http://www.w3.org/2002/07/owl#"
   xmlns:dc="http://purl.org/dc/elements/1.1/"
   xmlns:dcterms="http://purl.org/dc/terms/"
   xmlns:vcard="http://www.w3.org/2001/vcard-rdf/3.0#"
   xmlns:ns1="http://s3db.org/">

</rdf:RDF>';
	file_put_contents(S3DB_SERVER_ROOT.'/s3dbupdates.rdf',$emptyRDF);

	}
if(!is_file(S3DB_SERVER_ROOT.'/s3dbupdates.rdf'))
	{
	return formatReturn($GLOBALS['error_codes']['something_does_not_exist'], "Apache was unable to write to S3DB directory. Please make sure all files under ".S3DB_SERVER_ROOT." have write permission.", '');
	exit; 

}

$updates = findUpdates(S3DB_SERVER_ROOT.'/s3dbupdates.rdf', $remoteFile);
#echo '<pre>';print_r($updates);exit;
}
else {
	return formatReturn($GLOBALS['error_codes']['something_does_not_exist'], "Mothership update file could not be read. Please try again later.", $_REQUEST['format'], '');
	exit;
}
###
#Follow the link provided by the mothership, stored as value and place it under the correct path, stored as key
if(is_array($updates)){
$paths = array_keys($updates);
$uris = array_values($updates);
for ($i=0; $i < count($updates); $i++) {
	$fid = fopen($uris[$i],"r");
	$filedata=stream_get_contents($fid);
	
	$oldFile = S3DB_SERVER_ROOT.'/'.$paths[$i];
	$bak = S3DB_SERVER_ROOT.'/'.$paths[$i].date('dmY', time());
	
	###
	#Make a copy of the old file, if exists
	$c = copy($oldFile, $bak);
	
	$updated .= "Updated ".S3DB_SERVER_ROOT.'/'.$paths[$i].chr(10);
	
	###
	#Replace the old file with the new one
	$fid1 = fopen($oldFile, 'w+');
	
	file_put_contents($oldFile,$filedata);
	file_put_contents(S3DB_SERVER_ROOT.'/s3dbupdates.rdf', file_get_contents($remoteFile));
	@chmod($oldFile, 0774);
	
	
	#copy('s3dbupdates.rdf', 'extras/s3dbupdates.bak.rdf');
	#fwrite($fid1, $filedata);
	#echo $filedata;exit;

	#file_put_contents(S3DB_SERVER_ROOT.'/'.$paths[$i].'_updated', $filedata);
	
}
@file_put_contents('updated_log'.date('Ymd_His').'.txt', $updated);
}
if($_SESSION['db']!='')
{
Header('Location:'.$GLOBALS['action']['home']);
exit;
}
?>