/**
* Extend the bootstrap code to add some define's used by the JPS format engine
* @see backend/akeeba/abstract/AEAbstractArchiver#__bootstrap_code()
*/
protected function __bootstrap_code()
{
if (!defined('_JPS_MAJOR')) {
define('_JPS_MAJOR', 1);
// JPS Format major version number
define('_JPS_MINOR', 9);
// JPS Format minor version number
}
parent::__bootstrap_code();
}
public function __bootstrap_code() {
parent::__bootstrap_code();
// So that the first run doesn't crash!
if(empty($this->_dataFileName)) return;
// Try to reopen the ZIP
$this->zip = new ZipArchive;
if(!file_exists($this->_dataFileName)) {
$res = $this->zip->open($this->_dataFileName, ZIPARCHIVE::CREATE | ZIPARCHIVE::OVERWRITE);
} else {
$res = $this->zip->open($this->_dataFileName);
}
if($res !== TRUE) {
switch($res) {
case ZipArchive::ER_EXISTS:
$this->setError("The archive {$this->_dataFileName} already exists");
break;
case ZipArchive::ER_INCONS:
$this->setError("Inconsistent archive {$this->_dataFileName} detected");
break;
case ZipArchive::ER_INVAL:
$this->setError("Invalid archive {$this->_dataFileName} detected");
break;
case ZipArchive::ER_MEMORY:
$this->setError("Not enough memory to process archive {$this->_dataFileName}");
break;
case ZipArchive::ER_NOENT:
$this->setError("Unexpected ZipArchive::ER_NOENT error processing archive {$this->_dataFileName}");
break;
case ZipArchive::ER_NOZIP:
$this->setError("File {$this->_dataFileName} is not a ZIP archive!");
break;
case ZipArchive::ER_OPEN:
$this->setError("Could not open archive file {$this->_dataFileName} for writing");
break;
case ZipArchive::ER_READ:
$this->setError("Could not read from archive file {$this->_dataFileName}");
break;
case ZipArchive::ER_SEEK:
$this->setError("Could not seek into position while processing archive file {$this->_dataFileName}");
break;
}
return false;
}
}
/**
* Extend the bootstrap code to add some define's used by the JPA format engine
* @see backend/akeeba/abstract/AEAbstractArchiver#__bootstrap_code()
*/
protected function __bootstrap_code()
{
if (!defined('_AKEEBA_COMPRESSION_THRESHOLD')) {
$config =& AEFactory::getConfiguration();
define("_AKEEBA_COMPRESSION_THRESHOLD", $config->get('engine.archiver.common.big_file_threshold'));
// Don't compress files over this size
/**
* Akeeba Backup and JPA Format version change chart:
* Akeeba Backup 3.0: JPA Format 1.1 is used
* Akeeba Backup 3.1: JPA Format 1.2 with file modification timestamp is used
*/
define('_JPA_MAJOR', 1);
// JPA Format major version number
define('_JPA_MINOR', 2);
// JPA Format minor version number
}
parent::__bootstrap_code();
}
/**
* Class constructor - initializes internal operating parameters
*/
public function __construct()
{
AEUtilLogger::WriteLog(_AE_LOG_DEBUG, "AEArchiverZip :: New instance");
// Get chunk override
$registry = AEFactory::getConfiguration();
if ($registry->get('engine.archiver.common.chunk_size', 0) > 0) {
$this->AkeebaPackerZIP_CHUNK_SIZE = AKEEBA_CHUNK;
} else {
// Try to use as much memory as it's possible for CRC32 calculation
$memLimit = ini_get("memory_limit");
if (strstr($memLimit, 'M')) {
$memLimit = (int) $memLimit * 1048576;
} elseif (strstr($memLimit, 'K')) {
$memLimit = (int) $memLimit * 1024;
} elseif (strstr($memLimit, 'G')) {
$memLimit = (int) $memLimit * 1073741824;
} else {
$memLimit = (int) $memLimit;
}
if (is_numeric($memLimit) && $memLimit < 0) {
$memLimit = "";
}
// 1.2a3 -- Rare case with memory_limit < 0, e.g. -1Mb!
if ($memLimit == "") {
// No memory limit, use 2Mb chunks (fairly large, right?)
$this->AkeebaPackerZIP_CHUNK_SIZE = 2097152;
} elseif (function_exists("memory_get_usage")) {
// PHP can report memory usage, see if there's enough available memory; Joomla! alone eats about 5-6Mb! This code is called on files <= 1Mb
$memLimit = $this->_return_bytes($memLimit);
$availableRAM = $memLimit - memory_get_usage();
if ($availableRAM <= 0) {
// Some PHP implemenations also return the size of the httpd footprint!
if ($memLimit - 6291456 > 0) {
$this->AkeebaPackerZIP_CHUNK_SIZE = $memLimit - 6291456;
} else {
$this->AkeebaPackerZIP_CHUNK_SIZE = 2097152;
}
} else {
$this->AkeebaPackerZIP_CHUNK_SIZE = $availableRAM * 0.5;
}
} else {
// PHP can't report memory usage, use a conservative 512Kb
$this->AkeebaPackerZIP_CHUNK_SIZE = 524288;
}
}
// NEW 2.3: Should we enable Split ZIP feature?
$fragmentsize = $registry->get('engine.archiver.common.part_size', 0);
if ($fragmentsize >= 65536) {
// If the fragment size is AT LEAST 64Kb, enable Split ZIP
$this->_useSplitZIP = true;
$this->_fragmentSize = $fragmentsize;
// Indicate that we have at least 1 part
$statistics = AEFactory::getStatistics();
$statistics->updateMultipart(1);
}
// NEW 2.3: Should I use Symlink Target Storage?
$dereferencesymlinks = $registry->get('engine.archiver.common.dereference_symlinks', true);
if (!$dereferencesymlinks) {
// We are told not to dereference symlinks. Are we on Windows?
if (function_exists('php_uname')) {
$isWindows = stristr(php_uname(), 'windows');
} else {
$isWindows = DIRECTORY_SEPARATOR == '\\';
}
// If we are not on Windows, enable symlink target storage
$this->_symlink_store_target = !$isWindows;
}
AEUtilLogger::WriteLog(_AE_LOG_DEBUG, "Chunk size for CRC is now " . $this->AkeebaPackerZIP_CHUNK_SIZE . " bytes");
parent::__construct();
}