/**
* Process the file data of a link entry
* @return bool
*/
private function processTypeLink()
{
// Does the file have any data, at all?
if ($this->fileHeader->uncompressed == 0) {
// No file data!
$this->runState = AK_STATE_DATAREAD;
return true;
}
// Read the mini header
$binMiniHeader = fread($this->fp, 8);
$reallyReadBytes = akstringlen($binMiniHeader);
if ($reallyReadBytes < 8) {
// We read less than requested! Why? Did we hit local EOF?
if ($this->isEOF(true) && !$this->isEOF(false)) {
// Yeap. Let's go to the next file
$this->nextFile();
// Retry reading the header
$binMiniHeader = fread($this->fp, 8);
$reallyReadBytes = akstringlen($binMiniHeader);
// Still not enough data? If so, the archive is corrupt or missing parts.
if ($reallyReadBytes < 8) {
$this->setError(AKText::_('ERR_CORRUPT_ARCHIVE'));
return false;
}
} else {
// Nope. The archive is corrupt
$this->setError(AKText::_('ERR_CORRUPT_ARCHIVE'));
return false;
}
}
// Read the encrypted data
$miniHeader = unpack('Vencsize/Vdecsize', $binMiniHeader);
$toReadBytes = $miniHeader['encsize'];
$data = $this->fread($this->fp, $toReadBytes);
$reallyReadBytes = akstringlen($data);
if ($reallyReadBytes < $toReadBytes) {
// We read less than requested! Why? Did we hit local EOF?
if ($this->isEOF(true) && !$this->isEOF(false)) {
// Yeap. Let's go to the next file
$this->nextFile();
// Read the rest of the data
$toReadBytes -= $reallyReadBytes;
$restData = $this->fread($this->fp, $toReadBytes);
$reallyReadBytes = akstringlen($data);
if ($reallyReadBytes < $toReadBytes) {
$this->setError(AKText::_('ERR_CORRUPT_ARCHIVE'));
return false;
}
$data .= $restData;
} else {
// Nope. The archive is corrupt
$this->setError(AKText::_('ERR_CORRUPT_ARCHIVE'));
return false;
}
}
// Decrypt the data
$data = AKEncryptionAES::AESDecryptCBC($data, $this->password, 128);
// Is the length of the decrypted data less than expected?
$data_length = akstringlen($data);
if ($data_length < $miniHeader['decsize']) {
$this->setError(AKText::_('ERR_INVALID_JPS_PASSWORD'));
return false;
}
// Trim the data
$data = substr($data, 0, $miniHeader['decsize']);
// Try to remove an existing file or directory by the same name
if (file_exists($this->fileHeader->realFile)) {
@unlink($this->fileHeader->realFile);
@rmdir($this->fileHeader->realFile);
}
// Remove any trailing slash
if (substr($this->fileHeader->realFile, -1) == '/') {
$this->fileHeader->realFile = substr($this->fileHeader->realFile, 0, -1);
}
// Create the symlink - only possible within PHP context. There's no support built in the FTP protocol, so no postproc use is possible here :(
if (!AKFactory::get('kickstart.setup.dryrun', '0')) {
@symlink($data, $this->fileHeader->realFile);
}
$this->runState = AK_STATE_DATAREAD;
return true;
// No matter if the link was created!
}
private function processTypeFileCompressedSimple()
{
$timer = AKFactory::getTimer();
// Files are being processed in small chunks, to avoid timeouts
if ($this->dataReadLength == 0 && !AKFactory::get('kickstart.setup.dryrun', '0')) {
// Before processing file data, ensure permissions are adequate
$this->setCorrectPermissions($this->fileHeader->file);
}
// Open the output file
if (!AKFactory::get('kickstart.setup.dryrun', '0')) {
// Open the output file
$outfp = @fopen($this->fileHeader->realFile, 'wb');
// Can we write to the file?
$ignore = AKFactory::get('kickstart.setup.ignoreerrors', false) || $this->isIgnoredDirectory($this->fileHeader->file);
if ($outfp === false && !$ignore) {
// An error occured
$this->setError(AKText::sprintf('COULDNT_WRITE_FILE', $this->fileHeader->realFile));
return false;
}
}
// Does the file have any data, at all?
if ($this->fileHeader->uncompressed == 0) {
// No file data!
if (!AKFactory::get('kickstart.setup.dryrun', '0')) {
if (is_resource($outfp)) {
@fclose($outfp);
}
}
$this->runState = AK_STATE_DATAREAD;
return true;
}
$leftBytes = $this->fileHeader->uncompressed - $this->dataReadLength;
// Loop while there's data to write and enough time to do it
while ($leftBytes > 0 && $timer->getTimeLeft() > 0) {
// Read the mini header
$binMiniHeader = fread($this->fp, 8);
$reallyReadBytes = akstringlen($binMiniHeader);
if ($reallyReadBytes < 8) {
// We read less than requested! Why? Did we hit local EOF?
if ($this->isEOF(true) && !$this->isEOF(false)) {
// Yeap. Let's go to the next file
$this->nextFile();
// Retry reading the header
$binMiniHeader = fread($this->fp, 8);
$reallyReadBytes = akstringlen($binMiniHeader);
// Still not enough data? If so, the archive is corrupt or missing parts.
if ($reallyReadBytes < 8) {
$this->setError(AKText::_('ERR_CORRUPT_ARCHIVE'));
return false;
}
} else {
// Nope. The archive is corrupt
$this->setError(AKText::_('ERR_CORRUPT_ARCHIVE'));
return false;
}
}
// Read the encrypted data
$miniHeader = unpack('Vencsize/Vdecsize', $binMiniHeader);
$toReadBytes = $miniHeader['encsize'];
$data = $this->fread($this->fp, $toReadBytes);
$reallyReadBytes = akstringlen($data);
if ($reallyReadBytes < $toReadBytes) {
// We read less than requested! Why? Did we hit local EOF?
if ($this->isEOF(true) && !$this->isEOF(false)) {
// Yeap. Let's go to the next file
$this->nextFile();
// Read the rest of the data
$toReadBytes -= $reallyReadBytes;
$restData = $this->fread($this->fp, $toReadBytes);
$reallyReadBytes = akstringlen($restData);
if ($reallyReadBytes < $toReadBytes) {
$this->setError(AKText::_('ERR_CORRUPT_ARCHIVE'));
return false;
}
if (akstringlen($data) == 0) {
$data = $restData;
} else {
$data .= $restData;
}
} else {
// Nope. The archive is corrupt
$this->setError(AKText::_('ERR_CORRUPT_ARCHIVE'));
return false;
}
}
// Decrypt the data
$data = AKEncryptionAES::AESDecryptCBC($data, $this->password, 128);
// Is the length of the decrypted data less than expected?
$data_length = akstringlen($data);
if ($data_length < $miniHeader['decsize']) {
$this->setError(AKText::_('ERR_INVALID_JPS_PASSWORD'));
return false;
}
// Trim the data
$data = substr($data, 0, $miniHeader['decsize']);
// Decompress
$data = gzinflate($data);
$unc_len = akstringlen($data);
// Write the decrypted data
if (!AKFactory::get('kickstart.setup.dryrun', '0')) {
if (is_resource($outfp)) {
@fwrite($outfp, $data, akstringlen($data));
}
}
// Update the read length
$this->dataReadLength += $unc_len;
$leftBytes = $this->fileHeader->uncompressed - $this->dataReadLength;
}
// Close the file pointer
if (!AKFactory::get('kickstart.setup.dryrun', '0')) {
if (is_resource($outfp)) {
@fclose($outfp);
}
}
// Was this a pre-timeout bail out?
if ($leftBytes > 0) {
$this->runState = AK_STATE_DATA;
} else {
// Oh! We just finished!
$this->runState = AK_STATE_DATAREAD;
$this->dataReadLength = 0;
}
return true;
}
