/**
* Extract a ZIP compressed file to a given path
*
* @access public
* @param string $archive Path to ZIP archive to extract
* @param string $destination Path to extract archive into
* @param array $options Extraction options [unused]
* @return boolean True if successful
* @since 1.5
*/
function extract($archive, $destination, $options = array())
{
// Initialize variables
$this->_data = null;
$this->_metadata = null;
$stream =& PFactory::getStream();
if (!$stream->open($archive, 'rb')) {
$this->set('error.message', 'Unable to read archive');
return JError::raiseWarning(100, $this->get('error.message'));
}
$position = 0;
$return_array = array();
$i = 0;
$chunksize = 512;
// tar has items in 512 byte packets
while ($entry = $stream->read($chunksize)) {
//$entry =& $this->_data[$i];
$info = @unpack("a100filename/a8mode/a8uid/a8gid/a12size/a12mtime/a8checksum/Ctypeflag/a100link/a6magic/a2version/a32uname/a32gname/a8devmajor/a8devminor", $entry);
if (!$info) {
$this->set('error.message', 'Unable to decompress data');
return JError::raiseWarning(100, $this->get('error.message'));
}
$size = octdec($info['size']);
$bsize = ceil($size / $chunksize) * $chunksize;
$contents = '';
if ($size) {
//$contents = fread($this->_fh, $size);
$contents = substr($stream->read($bsize), 0, octdec($info['size']));
}
if ($info['filename']) {
$file = array('attr' => null, 'data' => null, 'date' => octdec($info['mtime']), 'name' => trim($info['filename']), 'size' => octdec($info['size']), 'type' => isset($this->_types[$info['typeflag']]) ? $this->_types[$info['typeflag']] : null);
if ($info['typeflag'] == 0 || $info['typeflag'] == 0x30 || $info['typeflag'] == 0x35) {
/* File or folder. */
$file['data'] = $contents;
$mode = hexdec(substr($info['mode'], 4, 3));
$file['attr'] = ($info['typeflag'] == 0x35 ? 'd' : '-') . ($mode & 0x400 ? 'r' : '-') . ($mode & 0x200 ? 'w' : '-') . ($mode & 0x100 ? 'x' : '-') . ($mode & 0x40 ? 'r' : '-') . ($mode & 0x20 ? 'w' : '-') . ($mode & 0x10 ? 'x' : '-') . ($mode & 0x4 ? 'r' : '-') . ($mode & 0x2 ? 'w' : '-') . ($mode & 0x1 ? 'x' : '-');
} else {
/* Some other type. */
}
$type = strtolower($file['type']);
if ($type == 'file' || $type == 'unix file') {
$path = JPath::clean($destination . DS . $file['name']);
// Make sure the destination folder exists
if (!JFolder::create(dirname($path))) {
$this->set('error.message', 'Unable to create destination');
return JError::raiseWarning(100, $this->get('error.message'));
}
if (JFile::write($path, $contents, true) === false) {
$this->set('error.message', 'Unable to write entry');
return JError::raiseWarning(100, $this->get('error.message'));
}
$contents = '';
// reclaim some memory
}
}
}
$stream->close();
return true;
}
/**
* Extract a Gzip compressed file to a given path
*
* @access public
* @param string $archive Path to ZIP archive to extract
* @param string $destination Path to extract archive to
* @param array $options Extraction options [unused]
* @return boolean True if successful
* @since 1.5
*/
function extract($archive, $destination, $options = array())
{
// Initialize variables
$this->_data = null;
if (!extension_loaded('zlib')) {
$this->set('error.message', 'Zlib Not Supported');
return JError::raiseWarning(100, $this->get('error.message'));
}
/*
if (!$this->_data = JFile::read($archive)) {
$this->set('error.message', 'Unable to read archive');
return JError::raiseWarning(100, $this->get('error.message'));
}
$position = $this->_getFilePosition();
$buffer = gzinflate(substr($this->_data, $position, strlen($this->_data) - $position));
if (empty ($buffer)) {
$this->set('error.message', 'Unable to decompress data');
return JError::raiseWarning(100, $this->get('error.message'));
}
if (JFile::write($destination, $buffer) === false) {
$this->set('error.message', 'Unable to write archive');
return JError::raiseWarning(100, $this->get('error.message'));
}
return true;
*/
// New style! streams!
$input =& PFactory::getStream();
$input->set('processingmethod', 'gz');
// use gz
if (!$input->open($archive)) {
$this->set('error.message', 'Unable to read archive (gz)');
return JError::raiseWarning(100, $this->get('error.message'));
}
$output =& PFactory::getStream();
if (!$output->open($destination, 'w')) {
$this->set('error.message', 'Unable to write archive (gz)');
$input->close();
// close the previous file
return JError::raiseWarning(100, $this->get('error.message'));
}
$written = 0;
do {
$this->_data = $input->read($input->get('chunksize', 8196));
if ($this->_data) {
if (!$output->write($this->_data)) {
$this->set('error.message', 'Unable to write file (gz)');
return JError::raiseWarning(100, $this->get('error.message'));
}
}
} while ($this->_data);
$output->close();
$input->close();
return true;
}
/**
* Extract a Bzip2 compressed file to a given path
*
* @access public
* @param string $archive Path to Bzip2 archive to extract
* @param string $destination Path to extract archive to
* @param array $options Extraction options [unused]
* @return boolean True if successful
* @since 1.5
*/
function extract($archive, $destination, $options = array())
{
// Initialize variables
$this->_data = null;
if (!extension_loaded('bz2')) {
$this->set('error.message', 'BZip2 Not Supported');
return JError::raiseWarning(100, $this->get('error.message'));
}
/* // old style: read the whole file and then parse it
if (!$this->_data = JFile::read($archive)) {
$this->set('error.message', 'Unable to read archive');
return JError::raiseWarning(100, $this->get('error.message'));
}
$buffer = bzdecompress($this->_data);
unset($this->_data);
if (empty ($buffer)) {
$this->set('error.message', 'Unable to decompress data');
return JError::raiseWarning(100, $this->get('error.message'));
}
if (JFile::write($destination, $buffer) === false) {
$this->set('error.message', 'Unable to write archive');
return JError::raiseWarning(100, $this->get('error.message'));
}
//*/
// New style! streams!
$input =& PFactory::getStream();
$input->set('processingmethod', 'bz');
// use bzip
if (!$input->open($archive)) {
$this->set('error.message', 'Unable to read archive (bz2)');
return JError::raiseWarning(100, $this->get('error.message'));
}
$output =& PFactory::getStream();
if (!$output->open($destination, 'w')) {
$this->set('error.message', 'Unable to write archive (bz2)');
$input->close();
// close the previous file
return JError::raiseWarning(100, $this->get('error.message'));
}
$written = 0;
do {
$this->_data = $input->read($input->get('chunksize', 8196));
if ($this->_data) {
if (!$output->write($this->_data)) {
$this->set('error.message', 'Unable to write file (bz2)');
return JError::raiseWarning(100, $this->get('error.message'));
}
}
} while ($this->_data);
$output->close();
$input->close();
return true;
}
function downloadFile($url, $target = false, &$params = null)
{
// this isn't intelligent some times
$error_object = new stdClass();
$proxy = false;
$php_errormsg = '';
// Set the error message
$track_errors = ini_set('track_errors', true);
// Set track errors
$config =& JFactory::getConfig();
if (is_null($params)) {
$params = new JParameter();
}
$input_handle = null;
// Are we on a version of PHP that supports streams?
if (version_compare(PHP_VERSION, '5.0.0', '>')) {
// set the ua; we could use ini_set but it might not work
$http_opts = array('user_agent' => RokUpdater::generateUAString());
// If:
// - the proxy is enabled,
// - the host is set and the port are set
// Set the proxy settings and create a stream context
if ($params->get('use_proxy', 0) && strlen($params->get('proxy_host', '')) && strlen($params->get('proxy_port', ''))) {
$proxy = true;
// I hate eclipse sometimes
// If the user has a proxy username set fill this in as well
$http_opts['proxy'] = 'tcp://' . $params->get('proxy_host') . ':' . $params->get('proxy_port');
$http_opts['request_fulluri'] = 'true';
// play nicely with squid
if (strlen($params->get('proxy_user', ''))) {
$credentials = base64_encode($params->get('proxy_user', '') . ':' . $params->get('proxy_pass', ''));
$http_opts['header'] = "Proxy-Authorization: Basic {$credentials}\r\n";
}
}
$context = stream_context_create(array('http' => $http_opts));
$input_handle = @fopen($url, 'r', false, $context);
} else {
// Open remote server
ini_set('user_agent', generateUAString());
// set the ua
$input_handle = @fopen($url, "r");
// or die("Remote server connection failed");
}
if (!$input_handle) {
$error_object->number = 42;
$error_object->message = 'Remote Server connection failed: ' . $php_errormsg . '; Using Proxy: ' . ($proxy ? 'Yes' : 'No');
ini_set('track_errors', $track_errors);
return $error_object;
}
$meta_data = stream_get_meta_data($input_handle);
foreach ($meta_data['wrapper_data'] as $wrapper_data) {
if (substr($wrapper_data, 0, strlen("Content-Disposition")) == "Content-Disposition") {
$contentfilename = explode("\"", $wrapper_data);
$target = $contentfilename[1];
}
}
// Set the target path if not given
if (!$target) {
$target = $config->getValue('config.tmp_path') . DS . Downloader::getFilenameFromURL($url);
} else {
$target = $config->getValue('config.tmp_path') . DS . basename($target);
}
RokUpdater::import('pasamio.pfactory');
$stream = PFactory::getStream(true, true, 'RokUpdater/' . ROKUPDATER_VERSION, true);
$relative_target = str_replace(JPATH_ROOT, '', $target);
$output_handle = $stream->open($relative_target, 'wb');
//$output_handle = fopen($target, "wb"); // or die("Local output opening failed");
if (!$output_handle) {
$error_object->number = 43;
$error_object->message = 'Local output opening failed: ' . $stream->getError();
ini_set('track_errors', $track_errors);
return $error_object;
}
$contents = '';
$downloaded = 0;
while (!feof($input_handle)) {
$contents = fread($input_handle, 4096);
if ($contents === false) {
$error_object->number = 44;
$error_object->message = 'Failed reading network resource at ' . $downloaded . ' bytes: ' . $php_errormsg;
ini_set('track_errors', $track_errors);
return $error_object;
} else {
if (strlen($contents)) {
$write_res = $stream->write($contents);
if ($write_res == false) {
$error_object->number = 45;
$error_object->message = 'Cannot write to local target: ' . $stream->getError();
ini_set('track_errors', $track_errors);
return $error_object;
}
$downloaded += 1024;
}
}
}
$stream->close();
fclose($input_handle);
ini_set('track_errors', $track_errors);
return basename($target);
}
function downloadFile($url, $target = false, &$params = null)
{
if (!function_exists('curl_init')) {
$error_object = new stdClass();
$error_object->number = 40;
$error_object->message = 'cURL support not available on this host. Use fopen instead.';
return $error_object;
}
$config =& JFactory::getConfig();
if (is_null($params)) {
$params = new JParameter();
}
$php_errormsg = '';
// Set the error message
$track_errors = ini_set('track_errors', true);
// Set track errors
// create a new cURL resource
$ch = curl_init();
// set URL and other appropriate options
curl_setopt($ch, CURLOPT_URL, $url);
// Set the download URL
curl_setopt($ch, CURLOPT_HEADER, false);
// Don't include the header in the output
curl_setopt($ch, CURLOPT_USERAGENT, generateUAString());
// set the user agent
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
// follow redirects (required for Joomla!)
curl_setopt($ch, CURLOPT_MAXREDIRS, 10);
// 10 maximum redirects
// curl_setopt($ch, CURLOPT_HEADERFUNCTION, // set a custom header callback
// array($this, 'header_callback')); // use this object and function 'header_callback'
if (!$target) {
$target = $config->getValue('config.tmp_path') . DS . Downloader::getFilenameFromURL($url);
}
juimport('pasamio.pfactory');
$output_stream = PFactory::getStream(true, true, 'JUpdateMan/' . getComponentVersion(), true);
$relative_target = str_replace(JPATH_ROOT, '', $target);
$output_handle = $output_stream->open($relative_target, 'wb');
//$output_handle = @fopen($target, "wb"); // Open a location
if (!$output_handle) {
$error_object->number = 43;
$error_object->message = 'Local output opening failed: ' . $output_stream->getError();
ini_set('track_errors', $track_errors);
return $error_object;
}
// since we're using streams we should be able to get everything up and running fine here
curl_setopt($ch, CURLOPT_FILE, $output_stream->getFileHandle());
if ($params->get('use_proxy', 0) && strlen($params->get('proxy_host', '')) && strlen($params->get('proxy_port', ''))) {
curl_setopt($ch, CURLOPT_PROXY, $params->get('proxy_host') . ':' . $params->get('proxy_port'));
if (strlen($params->get('proxy_user', ''))) {
curl_setopt($ch, CURLOPT_PROXYUSERPWD, $params->get('proxy_user') . ':' . $params->get('proxy_pass', ''));
}
}
// grab URL and pass it to the browser
if (curl_exec($ch) === false) {
$error_object->number = 46;
$error_object->message = 'cURL transfer failed(' . curl_errno($ch) . '): ' . curl_error($ch);
ini_set('track_errors', $track_errors);
return $error_object;
}
// close cURL resource, and free up system resources
curl_close($ch);
$output_stream->close();
return basename($target);
}
