public function Analyze()
{
$info =& $this->getid3->info;
$info['fileformat'] = 'rar';
if ($this->option_use_rar_extension === true) {
if (function_exists('rar_open')) {
if ($rp = rar_open($info['filenamepath'])) {
$info['rar']['files'] = array();
$entries = rar_list($rp);
foreach ($entries as $entry) {
$info['rar']['files'] = Utils::array_merge_clobber($info['rar']['files'], Utils::CreateDeepArray($entry->getName(), '/', $entry->getUnpackedSize()));
}
rar_close($rp);
return true;
} else {
$info['error'][] = 'failed to rar_open(' . $info['filename'] . ')';
}
} else {
$info['error'][] = 'RAR support does not appear to be available in this PHP installation';
}
} else {
$info['error'][] = 'PHP-RAR processing has been disabled (set ' . get_class($this) . '->option_use_rar_extension=true to enable)';
}
return false;
}
public function Analyze()
{
$info =& $this->getid3->info;
$info['fileformat'] = 'zip';
$info['zip']['encoding'] = 'ISO-8859-1';
$info['zip']['files'] = array();
$info['zip']['compressed_size'] = 0;
$info['zip']['uncompressed_size'] = 0;
$info['zip']['entries_count'] = 0;
if (!Utils::intValueSupported($info['filesize'])) {
$info['error'][] = 'File is larger than ' . round(PHP_INT_MAX / 1073741824) . 'GB, not supported by PHP';
return false;
} else {
$EOCDsearchData = '';
$EOCDsearchCounter = 0;
while ($EOCDsearchCounter++ < 512) {
$this->fseek(-128 * $EOCDsearchCounter, SEEK_END);
$EOCDsearchData = $this->fread(128) . $EOCDsearchData;
if (strstr($EOCDsearchData, 'PK' . "")) {
$EOCDposition = strpos($EOCDsearchData, 'PK' . "");
$this->fseek(-128 * $EOCDsearchCounter + $EOCDposition, SEEK_END);
$info['zip']['end_central_directory'] = $this->ZIPparseEndOfCentralDirectory();
$this->fseek($info['zip']['end_central_directory']['directory_offset']);
$info['zip']['entries_count'] = 0;
while ($centraldirectoryentry = $this->ZIPparseCentralDirectory($this->getid3->fp)) {
$info['zip']['central_directory'][] = $centraldirectoryentry;
$info['zip']['entries_count']++;
$info['zip']['compressed_size'] += $centraldirectoryentry['compressed_size'];
$info['zip']['uncompressed_size'] += $centraldirectoryentry['uncompressed_size'];
//if ($centraldirectoryentry['uncompressed_size'] > 0) { zero-byte files are valid
if (!empty($centraldirectoryentry['filename'])) {
$info['zip']['files'] = Utils::array_merge_clobber($info['zip']['files'], Utils::CreateDeepArray($centraldirectoryentry['filename'], '/', $centraldirectoryentry['uncompressed_size']));
}
}
if ($info['zip']['entries_count'] == 0) {
$info['error'][] = 'No Central Directory entries found (truncated file?)';
return false;
}
if (!empty($info['zip']['end_central_directory']['comment'])) {
$info['zip']['comments']['comment'][] = $info['zip']['end_central_directory']['comment'];
}
if (isset($info['zip']['central_directory'][0]['compression_method'])) {
$info['zip']['compression_method'] = $info['zip']['central_directory'][0]['compression_method'];
}
if (isset($info['zip']['central_directory'][0]['flags']['compression_speed'])) {
$info['zip']['compression_speed'] = $info['zip']['central_directory'][0]['flags']['compression_speed'];
}
if (isset($info['zip']['compression_method']) && $info['zip']['compression_method'] == 'store' && !isset($info['zip']['compression_speed'])) {
$info['zip']['compression_speed'] = 'store';
}
// secondary check - we (should) already have all the info we NEED from the Central Directory above, but scanning each
// Local File Header entry will
foreach ($info['zip']['central_directory'] as $central_directory_entry) {
$this->fseek($central_directory_entry['entry_offset']);
if ($fileentry = $this->ZIPparseLocalFileHeader()) {
$info['zip']['entries'][] = $fileentry;
} else {
$info['warning'][] = 'Error parsing Local File Header at offset ' . $central_directory_entry['entry_offset'];
}
}
if (!empty($info['zip']['files']['[Content_Types].xml']) && !empty($info['zip']['files']['_rels']['.rels']) && !empty($info['zip']['files']['docProps']['app.xml']) && !empty($info['zip']['files']['docProps']['core.xml'])) {
// http://technet.microsoft.com/en-us/library/cc179224.aspx
$info['fileformat'] = 'zip.msoffice';
if (!empty($ThisFileInfo['zip']['files']['ppt'])) {
$info['mime_type'] = 'application/vnd.openxmlformats-officedocument.presentationml.presentation';
} elseif (!empty($ThisFileInfo['zip']['files']['xl'])) {
$info['mime_type'] = 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet';
} elseif (!empty($ThisFileInfo['zip']['files']['word'])) {
$info['mime_type'] = 'application/vnd.openxmlformats-officedocument.wordprocessingml.document';
}
}
return true;
}
}
}
if (!$this->getZIPentriesFilepointer()) {
unset($info['zip']);
$info['fileformat'] = '';
$info['error'][] = 'Cannot find End Of Central Directory (truncated file?)';
return false;
}
// central directory couldn't be found and/or parsed
// scan through actual file data entries, recover as much as possible from probable trucated file
if ($info['zip']['compressed_size'] > $info['filesize'] - 46 - 22) {
$info['error'][] = 'Warning: Truncated file! - Total compressed file sizes (' . $info['zip']['compressed_size'] . ' bytes) is greater than filesize minus Central Directory and End Of Central Directory structures (' . ($info['filesize'] - 46 - 22) . ' bytes)';
}
$info['error'][] = 'Cannot find End Of Central Directory - returned list of files in [zip][entries] array may not be complete';
foreach ($info['zip']['entries'] as $key => $valuearray) {
$info['zip']['files'][$valuearray['filename']] = $valuearray['uncompressed_size'];
}
return true;
}
public function ParseDirectoryRecord($directorydata)
{
$info =& $this->getid3->info;
if (isset($info['iso']['supplementary_volume_descriptor'])) {
$TextEncoding = 'UTF-16BE';
// Big-Endian Unicode
} else {
$TextEncoding = 'ISO-8859-1';
// Latin-1
}
$this->fseek($directorydata['location_bytes']);
$DirectoryRecordData = $this->fread(1);
while (ord($DirectoryRecordData[0]) > 33) {
$DirectoryRecordData .= $this->fread(ord($DirectoryRecordData[0]) - 1);
$ThisDirectoryRecord['raw']['length'] = Utils::LittleEndian2Int(substr($DirectoryRecordData, 0, 1));
$ThisDirectoryRecord['raw']['extended_attribute_length'] = Utils::LittleEndian2Int(substr($DirectoryRecordData, 1, 1));
$ThisDirectoryRecord['raw']['offset_logical'] = Utils::LittleEndian2Int(substr($DirectoryRecordData, 2, 4));
$ThisDirectoryRecord['raw']['filesize'] = Utils::LittleEndian2Int(substr($DirectoryRecordData, 10, 4));
$ThisDirectoryRecord['raw']['recording_date_time'] = substr($DirectoryRecordData, 18, 7);
$ThisDirectoryRecord['raw']['file_flags'] = Utils::LittleEndian2Int(substr($DirectoryRecordData, 25, 1));
$ThisDirectoryRecord['raw']['file_unit_size'] = Utils::LittleEndian2Int(substr($DirectoryRecordData, 26, 1));
$ThisDirectoryRecord['raw']['interleave_gap_size'] = Utils::LittleEndian2Int(substr($DirectoryRecordData, 27, 1));
$ThisDirectoryRecord['raw']['volume_sequence_number'] = Utils::LittleEndian2Int(substr($DirectoryRecordData, 28, 2));
$ThisDirectoryRecord['raw']['file_identifier_length'] = Utils::LittleEndian2Int(substr($DirectoryRecordData, 32, 1));
$ThisDirectoryRecord['raw']['file_identifier'] = substr($DirectoryRecordData, 33, $ThisDirectoryRecord['raw']['file_identifier_length']);
$ThisDirectoryRecord['file_identifier_ascii'] = Utils::iconv_fallback($TextEncoding, $info['encoding'], $ThisDirectoryRecord['raw']['file_identifier']);
$ThisDirectoryRecord['filesize'] = $ThisDirectoryRecord['raw']['filesize'];
$ThisDirectoryRecord['offset_bytes'] = $ThisDirectoryRecord['raw']['offset_logical'] * 2048;
$ThisDirectoryRecord['file_flags']['hidden'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x1);
$ThisDirectoryRecord['file_flags']['directory'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x2);
$ThisDirectoryRecord['file_flags']['associated'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x4);
$ThisDirectoryRecord['file_flags']['extended'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x8);
$ThisDirectoryRecord['file_flags']['permissions'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x10);
$ThisDirectoryRecord['file_flags']['multiple'] = (bool) ($ThisDirectoryRecord['raw']['file_flags'] & 0x80);
$ThisDirectoryRecord['recording_timestamp'] = $this->ISOtime2UNIXtime($ThisDirectoryRecord['raw']['recording_date_time']);
if ($ThisDirectoryRecord['file_flags']['directory']) {
$ThisDirectoryRecord['filename'] = $directorydata['full_path'];
} else {
$ThisDirectoryRecord['filename'] = $directorydata['full_path'] . $this->ISOstripFilenameVersion($ThisDirectoryRecord['file_identifier_ascii']);
$info['iso']['files'] = Utils::array_merge_clobber($info['iso']['files'], Utils::CreateDeepArray($ThisDirectoryRecord['filename'], '/', $ThisDirectoryRecord['filesize']));
}
$DirectoryRecord[] = $ThisDirectoryRecord;
$DirectoryRecordData = $this->fread(1);
}
return $DirectoryRecord;
}
public function Analyze()
{
$info =& $this->getid3->info;
$info['fileformat'] = 'tar';
$info['tar']['files'] = array();
$unpack_header = 'a100fname/a8mode/a8uid/a8gid/a12size/a12mtime/a8chksum/a1typflag/a100lnkname/a6magic/a2ver/a32uname/a32gname/a8devmaj/a8devmin/a155prefix';
$null_512k = str_repeat("", 512);
// end-of-file marker
$this->fseek(0);
while (!feof($this->getid3->fp)) {
$buffer = $this->fread(512);
if (strlen($buffer) < 512) {
break;
}
// check the block
$checksum = 0;
for ($i = 0; $i < 148; $i++) {
$checksum += ord($buffer[$i]);
}
for ($i = 148; $i < 156; $i++) {
$checksum += ord(' ');
}
for ($i = 156; $i < 512; $i++) {
$checksum += ord($buffer[$i]);
}
$attr = unpack($unpack_header, $buffer);
$name = isset($attr['fname']) ? trim($attr['fname']) : '';
$mode = octdec(isset($attr['mode']) ? trim($attr['mode']) : '');
$uid = octdec(isset($attr['uid']) ? trim($attr['uid']) : '');
$gid = octdec(isset($attr['gid']) ? trim($attr['gid']) : '');
$size = octdec(isset($attr['size']) ? trim($attr['size']) : '');
$mtime = octdec(isset($attr['mtime']) ? trim($attr['mtime']) : '');
$chksum = octdec(isset($attr['chksum']) ? trim($attr['chksum']) : '');
$typflag = isset($attr['typflag']) ? trim($attr['typflag']) : '';
$lnkname = isset($attr['lnkname']) ? trim($attr['lnkname']) : '';
$magic = isset($attr['magic']) ? trim($attr['magic']) : '';
$ver = isset($attr['ver']) ? trim($attr['ver']) : '';
$uname = isset($attr['uname']) ? trim($attr['uname']) : '';
$gname = isset($attr['gname']) ? trim($attr['gname']) : '';
$devmaj = octdec(isset($attr['devmaj']) ? trim($attr['devmaj']) : '');
$devmin = octdec(isset($attr['devmin']) ? trim($attr['devmin']) : '');
$prefix = isset($attr['prefix']) ? trim($attr['prefix']) : '';
if ($checksum == 256 && $chksum == 0) {
// EOF Found
break;
}
if ($prefix) {
$name = $prefix . '/' . $name;
}
if (preg_match('#/$#', $name) && !$name) {
$typeflag = 5;
}
if ($buffer == $null_512k) {
// it's the end of the tar-file...
break;
}
// Read to the next chunk
$this->fseek($size, SEEK_CUR);
$diff = $size % 512;
if ($diff != 0) {
// Padding, throw away
$this->fseek(512 - $diff, SEEK_CUR);
}
// Protect against tar-files with garbage at the end
if ($name == '') {
break;
}
$info['tar']['file_details'][$name] = array('name' => $name, 'mode_raw' => $mode, 'mode' => self::display_perms($mode), 'uid' => $uid, 'gid' => $gid, 'size' => $size, 'mtime' => $mtime, 'chksum' => $chksum, 'typeflag' => self::get_flag_type($typflag), 'linkname' => $lnkname, 'magic' => $magic, 'version' => $ver, 'uname' => $uname, 'gname' => $gname, 'devmajor' => $devmaj, 'devminor' => $devmin);
$info['tar']['files'] = Utils::array_merge_clobber($info['tar']['files'], Utils::CreateDeepArray($info['tar']['file_details'][$name]['name'], '/', $size));
}
return true;
}
