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Add ZipModel for all changes.

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This commit is contained in:
wapplay-home-linux
2017-11-13 15:33:37 +03:00
parent a72db0aa7d
commit 452c5920dd
73 changed files with 7081 additions and 3431 deletions
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37
src/PhpZip/Crypto/TraditionalPkwareEncryptionEngine.php
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@@ -1,10 +1,12 @@
<?php
namespace PhpZip\Crypto;
use PhpZip\Exception\ZipAuthenticationException;
use PhpZip\Exception\ZipCryptoException;
use PhpZip\Model\ZipEntry;
use PhpZip\Util\CryptoUtil;
use PhpZip\Util\PackUtil;
/**
* Traditional PKWARE Encryption Engine.
@@ -13,7 +15,7 @@ use PhpZip\Util\CryptoUtil;
* @author Ne-Lexa alexey@nelexa.ru
* @license MIT
*/
class TraditionalPkwareEncryptionEngine implements CryptoEngine
class TraditionalPkwareEncryptionEngine implements ZipEncryptionEngine
{
/**
* Encryption header size
@@ -66,7 +68,6 @@ class TraditionalPkwareEncryptionEngine implements CryptoEngine
* @var array
*/
private $keys = [];
/**
* @var ZipEntry
*/
@@ -80,7 +81,6 @@ class TraditionalPkwareEncryptionEngine implements CryptoEngine
public function __construct(ZipEntry $entry)
{
$this->entry = $entry;
$this->initKeys($entry->getPassword());
}
/**
@@ -107,25 +107,8 @@ class TraditionalPkwareEncryptionEngine implements CryptoEngine
{
$this->keys[0] = self::crc32($this->keys[0], $charAt);
$this->keys[1] = $this->keys[1] + ($this->keys[0] & 0xff);
$this->keys[1] = self::toInt($this->keys[1] * 134775813 + 1);
$this->keys[2] = self::toInt(self::crc32($this->keys[2], ($this->keys[1] >> 24) & 0xff));
}
/**
* Cast to int
*
* @param $i
* @return int
*/
private static function toInt($i)
{
$i = (int)($i & 0xffffffff);
if ($i > 2147483647) {
return -(-$i & 0xffffffff);
} elseif ($i < -2147483648) {
return $i & -2147483648;
}
return $i;
$this->keys[1] = PackUtil::toSignedInt32($this->keys[1] * 134775813 + 1);
$this->keys[2] = PackUtil::toSignedInt32(self::crc32($this->keys[2], ($this->keys[1] >> 24) & 0xff));
}
/**
@@ -147,7 +130,11 @@ class TraditionalPkwareEncryptionEngine implements CryptoEngine
*/
public function decrypt($content)
{
$password = $this->entry->getPassword();
$this->initKeys($password);
$headerBytes = array_values(unpack('C*', substr($content, 0, self::STD_DEC_HDR_SIZE)));
$byte = 0;
foreach ($headerBytes as &$byte) {
$byte = ($byte ^ $this->decryptByte()) & 0xff;
$this->updateKeys($byte);
@@ -198,7 +185,9 @@ class TraditionalPkwareEncryptionEngine implements CryptoEngine
$headerBytes = CryptoUtil::randomBytes(self::STD_DEC_HDR_SIZE);
// Initialize again since the generated bytes were encrypted.
$this->initKeys($this->entry->getPassword());
$password = $this->entry->getPassword();
$this->initKeys($password);
$headerBytes[self::STD_DEC_HDR_SIZE - 1] = pack('c', ($crc >> 24) & 0xff);
$headerBytes[self::STD_DEC_HDR_SIZE - 2] = pack('c', ($crc >> 16) & 0xff);
@@ -233,4 +222,4 @@ class TraditionalPkwareEncryptionEngine implements CryptoEngine
$this->updateKeys($byte);
return $tempVal;
}
}
}