Calculate the 2 byte dos time used in the zip entries.
| public static getDosTime ( integer $timestamp ) : string | ||
| $timestamp | integer | |
| return | string | 2-byte encoded DOS Date |
public static function createDirEntry($path, $timestamp)
{
$fileEntry = new ZipFileEntry();
$fileEntry->gzType = 0;
$fileEntry->gpFlags = 0;
$fileEntry->fileCRC32 = 0;
$fileEntry->externalFileAttributes = ZipFileEntry::EXT_FILE_ATTR_DIR;
$fileEntry->gzLength = 0;
$fileEntry->dataLength = 0;
$fileEntry->isDirectory = true;
$fileEntry->dosTime = ZipUtils::getDosTime($timestamp);
$fileEntry->path = $path;
$ef = new ExtendedTimeStampExtraField();
$ef->setModTime($timestamp);
$ef->setAccessTime($timestamp);
$fileEntry->addExtraField($ef);
$ef = new GenericExtraField();
$ef->header = AbstractExtraField::HEADER_UNIX_TYPE_3;
$ef->setFieldData("è", '');
$fileEntry->addExtraField($ef);
return $fileEntry;
}
/**
* Build the Zip file structures
*
* @author A. Grandt <*****@*****.**>
* @author Greg Kappatos
*
* @param string $filePath
* @param string $fileComment
* @param string $gpFlags
* @param string $gzType
* @param int $timestamp
* @param string $fileCRC32
* @param int $gzLength
* @param int $dataLength
* @param int $extFileAttr Use self::EXT_FILE_ATTR_FILE for files, self::EXT_FILE_ATTR_DIR for Directories.
*/
protected function buildZipEntry($filePath, $fileComment, $gpFlags, $gzType, $timestamp, $fileCRC32, $gzLength, $dataLength, $extFileAttr)
{
$filePath = str_replace("\\", "/", $filePath);
$fileCommentLength = empty($fileComment) ? 0 : ZipUtils::bin_strlen($fileComment);
$timestamp = (int) $timestamp;
$timestamp = $timestamp == 0 ? time() : $timestamp;
$dosTime = ZipUtils::getDosTime($timestamp);
$tsPack = pack("V", $timestamp);
if (!isset($gpFlags) || ZipUtils::bin_strlen($gpFlags) != 2) {
$gpFlags = self::DEFAULT_GP_FLAGS;
}
$isFileUTF8 = mb_check_encoding($filePath, "UTF-8") && !mb_check_encoding($filePath, "ASCII");
$isCommentUTF8 = !empty($fileComment) && mb_check_encoding($fileComment, "UTF-8") && !mb_check_encoding($fileComment, "ASCII");
$localExtraField = "";
$centralExtraField = "";
if ($this->addExtraField) {
$localExtraField .= "UT\t" . $tsPack . $tsPack . self::EXTRA_FIELD_NEW_UNIX_GUID;
$centralExtraField .= "UT" . $tsPack . self::EXTRA_FIELD_NEW_UNIX_GUID_CD;
}
if ($isFileUTF8 || $isCommentUTF8) {
$flag = 0;
$gpFlagsV = unpack("vflags", $gpFlags);
if (isset($gpFlagsV['flags'])) {
$flag = $gpFlagsV['flags'];
}
$gpFlags = pack("v", $flag | 1 << 11);
if ($isFileUTF8) {
$utfPathExtraField = "up" . pack("v", 5 + ZipUtils::bin_strlen($filePath)) . "" . pack("V", crc32($filePath)) . $filePath;
$localExtraField .= $utfPathExtraField;
$centralExtraField .= $utfPathExtraField;
}
if ($isCommentUTF8) {
$centralExtraField .= "uc" . pack("v", 5 + ZipUtils::bin_strlen($fileComment)) . "" . pack("V", crc32($fileComment)) . $fileComment;
}
}
$header = $gpFlags . $gzType . $dosTime . $fileCRC32 . pack("VVv", $gzLength, $dataLength, ZipUtils::bin_strlen($filePath));
// File name length
$zipEntry = self::ZIP_LOCAL_FILE_HEADER . self::ATTR_VERSION_TO_EXTRACT . $header . pack("v", ZipUtils::bin_strlen($localExtraField)) . $filePath . $localExtraField;
// Extra fields
$this->onBuildZipEntry(array('zipEntry' => $zipEntry));
$cdEntry = self::ZIP_CENTRAL_FILE_HEADER . self::ATTR_MADE_BY_VERSION . ($dataLength === 0 ? "\n" : self::ATTR_VERSION_TO_EXTRACT) . $header . pack("v", ZipUtils::bin_strlen($centralExtraField)) . pack("v", $fileCommentLength) . self::NUL_NUL . self::NUL_NUL . pack("V", $extFileAttr) . pack("V", $this->offset) . $filePath . $centralExtraField;
// Extra fields
if (!empty($fileComment)) {
$cdEntry .= $fileComment;
// Comment
}
$this->cdRec[] = $cdEntry;
$this->offset += ZipUtils::bin_strlen($zipEntry) + $gzLength;
$this->_notifyListeners(null, array('file' => $zipEntry));
}
/**
* Build the Zip file structures
*
* @author A. Grandt <*****@*****.**>
* @author Greg Kappatos
*
* @param string $filePath
* @param string $fileComment
* @param string $gpFlags
* @param string $gzType
* @param int $timestamp
* @param string $fileCRC32
* @param int $gzLength
* @param int $dataLength
* @param int $extFileAttr Use self::EXT_FILE_ATTR_FILE for files, self::EXT_FILE_ATTR_DIR for Directories.
*/
protected function buildZipEntry($filePath, $fileComment, $gpFlags, $gzType, $timestamp, $fileCRC32, $gzLength, $dataLength, $extFileAttr) {
$filePath = str_replace("\\", "/", $filePath);
$fileCommentLength = (empty($fileComment) ? 0 : BinStringStatic::_strlen($fileComment));
$timestamp = (int)$timestamp;
$timestamp = ($timestamp == 0 ? time() : $timestamp);
$dosTime = ZipUtils::getDosTime($timestamp);
$tsPack = pack("V", $timestamp);
if (!isset($gpFlags) || BinStringStatic::_strlen($gpFlags) != 2) {
$gpFlags = self::DEFAULT_GP_FLAGS;
}
$isFileUTF8 = mb_check_encoding($filePath, "UTF-8") && !mb_check_encoding($filePath, "ASCII");
$isCommentUTF8 = !empty($fileComment) && mb_check_encoding($fileComment, "UTF-8") && !mb_check_encoding($fileComment, "ASCII");
$locExField = "";
$cenExField = "";
if ($this->addExtraField) {
$locExField .= self::HEADER_EXTENDED_TIMESTAMP . "\x09\x00\x03"
. $tsPack . $tsPack
. self::EXTRA_FIELD_NEW_UNIX_GUID;
$cenExField .= self::HEADER_EXTENDED_TIMESTAMP . "\x05\x00\x03"
. $tsPack
. self::EXTRA_FIELD_NEW_UNIX_GUID_CD;
}
if ($isFileUTF8 || $isCommentUTF8) {
$flag = 0;
$gpFlagsV = unpack("vflags", $gpFlags);
if (isset($gpFlagsV['flags'])) {
$flag = $gpFlagsV['flags'];
}
$gpFlags = pack("v", $flag | (1 << 11));
if ($isFileUTF8) {
$utfExField = self::HEADER_UNICODE_PATH // utf8 encoded File path extra field
. pack ("v", (5 + BinStringStatic::_strlen($filePath)))
. "\x01"
. pack("V", crc32($filePath))
. $filePath;
$locExField .= $utfExField;
$cenExField .= $utfExField;
}
if ($isCommentUTF8) {
$cenExField .= self::HEADER_UNICODE_COMMENT // utf8 encoded file comment extra field
. pack ("v", (5 + BinStringStatic::_strlen($fileComment)))
. "\x01"
. pack("V", crc32($fileComment))
. $fileComment;
}
}
$header = $gpFlags . $gzType . $dosTime. $fileCRC32
. pack("VVv", $gzLength, $dataLength, BinStringStatic::_strlen($filePath)); // File name length
$zipEntry = self::ZIP_LOCAL_FILE_HEADER
. self::ATTR_VERSION_TO_EXTRACT
. $header
. pack("v", BinStringStatic::_strlen($locExField)) // Extra field length
. $filePath // FileName
. $locExField; // Extra fields
$this->onBuildZipEntry(array(
'zipEntry' => $zipEntry,
));
$cdEntry = self::ZIP_CENTRAL_FILE_HEADER
. self::ATTR_MADE_BY_VERSION
. ($dataLength === 0 ? "\x0A\x00" : self::ATTR_VERSION_TO_EXTRACT)
. $header
. pack("v", BinStringStatic::_strlen($cenExField)) // Extra field length
. pack("v", $fileCommentLength) // File comment length
. self::NULL_WORD // Disk number start
. self::NULL_WORD // internal file attributes
. pack("V", $extFileAttr) // External file attributes
. pack("V", $this->offset) // Relative offset of local header
. $filePath // FileName
. $cenExField; // Extra fields
if (!empty($fileComment)) {
$cdEntry .= $fileComment; // Comment
}
$this->cdRec[] = $cdEntry;
$this->offset += BinStringStatic::_strlen($zipEntry) + $gzLength;
$this->_notifyListeners(null, array(
'file' => $zipEntry,
));
}