joomla/tcpdf
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Code Issues Releases Activity

6.2.10 (2015-07-28)

Browse Source 
- Minor mod to PNG parsing.
- Make dependency on mcrypt optional.
This commit is contained in:
nicolaasuni 2015-07-28 16:28:45 +01:00
parent fa6ab8a1e1
commit 25394f75d6
6 changed files with 46 additions and 18 deletions
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5
CHANGELOG.TXT
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@ -1,5 +1,6 @@
6.2.9 (2015-06-18)
-
6.2.10 (2015-07-28)
- Minor mod to PNG parsing.
- Make dependency on mcrypt optional.
6.2.8 (2015-04-29)
- Removed unwanted file.

4
README.TXT
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@ -8,8 +8,8 @@ http://sourceforge.net/donate/index.php?group_id=128076
------------------------------------------------------------
Name: TCPDF
Version: 6.2.9
Release date: 2015-06-18
Version: 6.2.10
Release date: 2015-07-28
Author: Nicola Asuni
Copyright (c) 2002-2015:

2
composer.json
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@ -1,6 +1,6 @@
{
"name": "tecnick.com/tcpdf",
"version": "6.2.9",
"version": "6.2.10",
"homepage": "http://www.tcpdf.org/",
"type": "library",
"description": "TCPDF is a PHP class for generating PDF documents and barcodes.",

3
include/tcpdf_images.php
View File

@ -297,8 +297,8 @@ class TCPDF_IMAGES {
$trns = '';
$data = '';
$icc = false;
$n = TCPDF_STATIC::_freadint($f);
do {
$n = TCPDF_STATIC::_freadint($f);
$type = fread($f, 4);
if ($type == 'PLTE') {
// read palette
@ -346,6 +346,7 @@ class TCPDF_IMAGES {
} else {
TCPDF_STATIC::rfread($f, $n + 4);
}
$n = TCPDF_STATIC::_freadint($f);
} while ($n);
if (($colspace == 'Indexed') AND (empty($pal))) {
// Missing palette

32
include/tcpdf_static.php
View File

@ -55,7 +55,7 @@ class TCPDF_STATIC {
* Current TCPDF version.
* @private static
*/
private static $tcpdf_version = '6.2.9';
private static $tcpdf_version = '6.2.10';
/**
* String alias for total number of pages.
@ -1024,7 +1024,7 @@ class TCPDF_STATIC {
return false;
}
$rest = ($length - strlen($data));
if ($rest > 0) {
if (($rest > 0) && !feof($handle)) {
$data .= self::rfread($handle, $rest);
}
return $data;
@ -1078,7 +1078,7 @@ class TCPDF_STATIC {
/**
* Returns the input text exrypted using AES algorithm and the specified key.
* This method requires mcrypt.
* This method requires openssl or mcrypt. Text is padded to 16bytes blocks
* @param $key (string) encryption key
* @param $text (String) input text to be encrypted
* @return String encrypted text
@ -1090,12 +1090,38 @@ class TCPDF_STATIC {
// padding (RFC 2898, PKCS #5: Password-Based Cryptography Specification Version 2.0)
$padding = 16 - (strlen($text) % 16);
$text .= str_repeat(chr($padding), $padding);
if (extension_loaded('openssl')) {
$iv = openssl_random_pseudo_bytes (openssl_cipher_iv_length('aes-256-cbc'));
$text = openssl_encrypt($text, 'aes-256-cbc', $key, OPENSSL_RAW_DATA, $iv);
return $iv.substr($text, 0, -16);
}
$iv = mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC), MCRYPT_RAND);
$text = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $key, $text, MCRYPT_MODE_CBC, $iv);
$text = $iv.$text;
return $text;
}
/**
* Returns the input text exrypted using AES algorithm and the specified key.
* This method requires openssl or mcrypt. Text is not padded
* @param $key (string) encryption key
* @param $text (String) input text to be encrypted
* @return String encrypted text
* @author Nicola Asuni
* @since TODO
* @public static
*/
public static function _AESnopad($key, $text) {
if (extension_loaded('openssl')) {
$iv = str_repeat("\x00", openssl_cipher_iv_length('aes-256-cbc'));
$text = openssl_encrypt($text, 'aes-256-cbc', $key, OPENSSL_RAW_DATA, $iv);
return substr($text, 0, -16);
}
$iv = str_repeat("\x00", mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC));
$text = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $key, $text, MCRYPT_MODE_CBC, $iv);
return $text;
}
/**
* Returns the input text encrypted using RC4 algorithm and the specified key.
* RC4 is the standard encryption algorithm used in PDF format

18
tcpdf.php
View File

@ -10633,8 +10633,7 @@ class TCPDF {
*/
protected function _UEvalue() {
$hashkey = hash('sha256', $this->encryptdata['user_password'].$this->encryptdata['UKS'], true);
$iv = str_repeat("\x00", mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC));
return mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $hashkey, $this->encryptdata['key'], MCRYPT_MODE_CBC, $iv);
return TCPDF_STATIC::_AESnopad($hashkey, $this->encryptdata['key']);
}
/**
@ -10684,8 +10683,7 @@ class TCPDF {
*/
protected function _OEvalue() {
$hashkey = hash('sha256', $this->encryptdata['owner_password'].$this->encryptdata['OKS'].$this->encryptdata['U'], true);
$iv = str_repeat("\x00", mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC));
return mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $hashkey, $this->encryptdata['key'], MCRYPT_MODE_CBC, $iv);
return TCPDF_STATIC::_AESnopad($hashkey, $this->encryptdata['key']);
}
/**
@ -10740,8 +10738,7 @@ class TCPDF {
}
$perms .= 'adb'; // bytes 9-11
$perms .= 'nick'; // bytes 12-15
$iv = str_repeat("\x00", mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB));
$this->encryptdata['perms'] = mcrypt_encrypt(MCRYPT_RIJNDAEL_128, $this->encryptdata['key'], $perms, MCRYPT_MODE_ECB, $iv);
$this->encryptdata['perms'] = TCPDF_STATIC::_AESnopad($this->encryptdata['key'], $perms);
} else { // RC4-40, RC4-128, AES-128
// Pad passwords
$this->encryptdata['user_password'] = substr($this->encryptdata['user_password'].TCPDF_STATIC::$enc_padding, 0, 32);
@ -10859,10 +10856,13 @@ class TCPDF {
$this->encryptdata['StrF'] = 'StdCF';
}
if ($mode > 1) { // AES
if (!extension_loaded('mcrypt')) {
$this->Error('AES encryption requires mcrypt library (http://www.php.net/manual/en/mcrypt.requirements.php).');
if (!extension_loaded('openssl') && !extension_loaded('mcrypt')) {
$this->Error('AES encryption requires openssl or mcrypt extension (http://www.php.net/manual/en/mcrypt.requirements.php).');
}
if (mcrypt_get_cipher_name(MCRYPT_RIJNDAEL_128) === false) {
if (extension_loaded('openssl') && !in_array('aes-256-cbc', openssl_get_cipher_methods())) {
$this->Error('AES encryption requires openssl/aes-256-cbc cypher.');
}
if (extension_loaded('mcrypt') && mcrypt_get_cipher_name(MCRYPT_RIJNDAEL_128) === false) {
$this->Error('AES encryption requires MCRYPT_RIJNDAEL_128 cypher.');
}
if (($mode == 3) AND !function_exists('hash')) {