public function __toString()
{
$this->zipCommentLength = ZipUtils::bin_strlen($this->zipComment);
$eocd = AbstractZipHeader::ZIP_END_OF_CENTRAL_DIRECTORY;
$eocd .= pack("vvvv", $this->thisDisk, $this->firstCDDisk, $this->cdrCount1, $this->cdrCount2);
$eocd .= pack("VVv", $this->cdrLength, $this->cdrStart, $this->zipCommentLength);
if ($this->zipCommentLength > 0) {
$eocd .= $this->zipComment;
} else {
$eocd .= AbstractZipHeader::NULL_WORD;
}
return $eocd;
}
public function getCentralDirectoryHeader()
{
$ef = '';
foreach ($this->extraFieldsArray as $value) {
/* @var $value AbstractExtraField */
$ef .= $value->getCentralField();
}
$cd = AbstractZipHeader::ZIP_CENTRAL_FILE_HEADER . $this->versionMadeBy . $this->versionNeeded;
$cd .= pack("vv", $this->gpFlags, $this->gzType);
$cd .= $this->dosTime;
$cd .= pack("VVV", $this->fileCRC32, $this->gzLength, $this->dataLength);
$cd .= pack("v", ZipUtils::bin_strlen($this->path));
$cd .= pack("v", ZipUtils::bin_strlen($ef));
$cd .= pack("v", ZipUtils::bin_strlen($this->comment));
$cd .= $this->discNumberStart . $this->internalFileAttributes . $this->externalFileAttributes;
$cd .= pack("V", $this->offset);
$cd .= $this->path;
$cd .= $ef;
$cd .= $this->comment;
return $cd;
}
/**
*
* @author A. Grandt <*****@*****.**>
* @author Greg Kappatos
*
* @return string The full path to a temporary file.
*/
public static function getTemporaryFile()
{
if (is_callable(self::$temp)) {
$file = @call_user_func(self::$temp);
if (is_string($file) && ZipUtils::bin_strlen($file) && is_writable($file)) {
return $file;
}
}
$dir = is_string(self::$temp) && ZipUtils::bin_strlen(self::$temp) ? self::$temp : sys_get_temp_dir();
if (is_dir($dir) === false) {
$dir = ini_get('upload_tmp_dir');
}
if (is_dir($dir) === false) {
$dir = ini_get('upload_tmp_dir');
}
return tempnam($dir, __NAMESPACE__);
}
/**
* Build the base standard response headers, and ensure the content can be streamed.
*
* @author A. Grandt <*****@*****.**>
*
* @param String $fileName The name of the Zip archive, in ISO-8859-1 (or ASCII) encoding, ie. "archive.zip". Optional, defaults to null, which means that no ISO-8859-1 encoded file name will be specified.
* @param String $contentType Content mime type. Optional, defaults to "application/zip".
* @param String $utf8FileName The name of the Zip archive, in UTF-8 encoding. Optional, defaults to null, which means that no UTF-8 encoded file name will be specified.
* @param bool $inline Use Content-Disposition with "inline" instead of "attached". Optional, defaults to false.
*
* @return bool Always returns true (for backward compatibility).
*
* @throws \PHPZip\Zip\Exception\BufferNotEmpty, HeadersSent In case of errors
*/
protected function buildResponseHeader($fileName = null, $contentType = self::CONTENT_TYPE, $utf8FileName = null, $inline = false)
{
$ob = null;
$headerFile = null;
$headerLine = null;
$zlibConfig = 'zlib.output_compression';
$ob = ob_get_contents();
if ($ob !== false && ZipUtils::bin_strlen($ob)) {
$this->_throwException(new BufferNotEmpty(array('outputBuffer' => $ob, 'fileName' => $fileName)));
}
if (headers_sent($headerFile, $headerLine)) {
$this->_throwException(new HeadersSent(array('headerFile' => $headerFile, 'headerLine' => $headerLine, 'fileName' => $fileName)));
}
if (@ini_get($zlibConfig)) {
@ini_set($zlibConfig, 'Off');
}
$cd = 'Content-Disposition: ' . ($inline ? 'inline' : 'attached');
if ($fileName) {
$cd .= '; filename="' . $fileName . '"';
}
if ($utf8FileName) {
$cd .= "; filename*=UTF-8''" . rawurlencode($utf8FileName);
}
header('Pragma: public');
header('Last-Modified: ' . gmdate('D, d M Y H:i:s T'));
header('Expires: 0');
header('Accept-Ranges: bytes');
header('Connection: close');
header('Content-Type: ' . $contentType);
header($cd);
return true;
}
/**
* @return string The version of the field for the Central Header.
*/
public function getCentralField()
{
return parent::HEADER_UNICODE_COMMENT . pack('vV', ZipUtils::bin_strlen($this->utf8Data) + 5, $this->CRC32) . $this->version . $this->utf8Data;
}
/**
* Return the current size of the archive
*
* @author A. Grandt <*****@*****.**>
*
* @return int Size of the archive
*/
public function getArchiveSize()
{
if (!is_resource($this->_zipFile)) {
return ZipUtils::bin_strlen($this->_zipData);
}
$stat = fstat($this->_zipFile);
return $stat['size'];
}
public static function encodeField($header, $data)
{
if ($header != null) {
return $header . pack('v', ZipUtils::bin_strlen($data)) . $data;
}
return '';
}
/**
* @return string The version of the field for the Central Header.
*/
public function getCentralField()
{
$ts = $this->isModTimeSet ? pack('V', $this->modTime) : '';
$flags = 0;
ZipUtils::setBit($flags, 0, $this->isModTimeSet);
ZipUtils::setBit($flags, 1, $this->isAcTimeSet);
ZipUtils::setBit($flags, 2, $this->isCrTimeSet);
return parent::HEADER_EXTENDED_TIMESTAMP . pack('vc', 1 + ZipUtils::bin_strlen($ts), $flags) . $ts;
}
