/**
* Checks the VirtueMart Server for the latest available Version of VirtueMart
*
* @return string Example: 1.1.2
*/
function getLatestVersion()
{
if (!class_exists('VmConnector')) {
require VMPATH_ROOT . DS . 'administrator' . DS . 'components' . DS . 'com_virtuemart' . DS . 'helpers' . DS . 'connection.php';
}
$url = "http://virtuemart.net/index2.php?option=com_versions&catid=1&myVersion={" . VmConfig::getInstalledVersion() . "}&task=latestversionastext";
$result = VmConnector::handleCommunication($url);
return $result;
}
static function getSetExchangeRates($ecb_filename)
{
$archive = true;
setlocale(LC_TIME, "en-GB");
$now = time() + 3600;
// Time in ECB (Germany) is GMT + 1 hour (3600 seconds)
if (date("I")) {
$now += 3600;
// Adjust for daylight saving time
}
$weekday_now_local = gmdate('w', $now);
// week day, important: week starts with sunday (= 0) !!
$date_now_local = gmdate('Ymd', $now);
$time_now_local = gmdate('Hi', $now);
$time_ecb_update = '1415';
if (is_writable(VMPATH_ROOT . DS . 'cache')) {
$store_path = VMPATH_ROOT . DS . 'cache';
} else {
$store_path = VMPATH_ROOT . DS . 'media';
}
$archivefile_name = $store_path . '/daily.xml';
$val = '';
if (file_exists($archivefile_name) && filesize($archivefile_name) > 0) {
// timestamp for the Filename
$file_datestamp = date('Ymd', filemtime($archivefile_name));
// check if today is a weekday - no updates on weekends
if (date('w') > 0 && date('w') < 6 && $file_datestamp != $date_now_local && $time_now_local > $time_ecb_update) {
$curr_filename = $ecb_filename;
} else {
$curr_filename = $archivefile_name;
$last_updated = $file_datestamp;
$archive = false;
}
} else {
$curr_filename = $ecb_filename;
}
if (!is_writable($store_path)) {
$archive = false;
vmError("The file {$archivefile_name} can't be created. The directory {$store_path} is not writable");
}
// JError::raiseNotice(1, "The file $archivefile_name should be in the directory $store_path " );
if ($curr_filename == $ecb_filename) {
// Fetch the file from the internet
if (!class_exists('VmConnector')) {
require VMPATH_ADMIN . DS . 'helpers' . DS . 'connection.php';
}
// JError::raiseNotice(1, "Updating currency " );
if (!($contents = VmConnector::handleCommunication($curr_filename))) {
if (isset($file_datestamp)) {
$contents = @file_get_contents($curr_filename);
}
} else {
$last_updated = date('Ymd');
}
} else {
$contents = @file_get_contents($curr_filename);
}
if ($contents) {
// if archivefile does not exist
if ($archive) {
// now write new file
file_put_contents($archivefile_name, $contents);
}
$contents = str_replace("<Cube currency='USD'", " <Cube currency='EUR' rate='1'/> <Cube currency='USD'", $contents);
/* XML Parsing */
$xmlDoc = new DomDocument();
if (!$xmlDoc->loadXML($contents)) {
//todo
vmError('Failed to parse the Currency Converter XML document.');
vmError('The content: ' . $contents);
// $GLOBALS['product_currency'] = $vendor_currency;
return false;
}
$currency_list = $xmlDoc->getElementsByTagName("Cube");
// Loop through the Currency List
$length = $currency_list->length;
for ($i = 0; $i < $length; $i++) {
$currNode = $currency_list->item($i);
if (!empty($currNode) && !empty($currNode->attributes->getNamedItem("currency")->nodeValue)) {
$currency[$currNode->attributes->getNamedItem("currency")->nodeValue] = $currNode->attributes->getNamedItem("rate")->nodeValue;
unset($currNode);
}
}
$globalCurrencyConverter = $currency;
} else {
$globalCurrencyConverter = false;
vmError('Failed to retrieve the Currency Converter XML document.');
// return false;
}
return $globalCurrencyConverter;
}
/**
* Set headers and send the file to the client
*
* @author Andreas Gohr <*****@*****.**>
* @param string The full path to the file
* @param string The Mime Type of the file
*/
function sendFile($file, $mime, $overrideFileName = '')
{
// send headers
header("Content-Type: {$mime}");
list($start, $len) = VmConnector::http_rangeRequest(filesize($file));
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: public');
header('Accept-Ranges: bytes');
//application mime type is downloadable
if (strtolower(substr($mime, 0, 11)) == 'application') {
if ($overrideFileName == '') {
$filename = basename($file);
} else {
$filename = $overrideFileName;
}
header('Content-Disposition: attachment; filename="' . $filename . '";');
}
$chunksize = 1 * (1024 * 1024);
// send file contents
$fp = @fopen($file, "rb");
if ($fp) {
fseek($fp, $start);
//seek to start of range
$chunk = $len > $chunksize ? $chunksize : $len;
while (!feof($fp) && $chunk > 0) {
@set_time_limit();
// large files can take a lot of time
print fread($fp, $chunk);
flush();
$len -= $chunk;
$chunk = $len > $chunksize ? $chunksize : $len;
}
fclose($fp);
} else {
header("HTTP/1.0 500 Internal Server Error");
print "Could not read {$file} - bad permissions?";
JFactory::getApplication()->close(true);
}
}
