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Version 4.1.19

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Neo committed 2025-12-19 05:38:56 -08:00
1 parent 28bd025b35
commit 2bd5025018
2674 files changed
+233518 -77766
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system/Image/Image.php
+44 -25
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@@ -2,9 +2,9 @@
/**
* @brief Image Class
* @author <a href='http://www.invisionpower.com'>Invision Power Services, Inc.</a>
* @copyright (c) 2001 - SVN_YYYY Invision Power Services, Inc.
* @copyright (c) 2001 - 2016 Invision Power Services, Inc.
* @license http://www.invisionpower.com/legal/standards/
* @package IPS Social Suite
* @package IPS Community Suite
* @since 19 Feb 2013
* @version SVN_VERSION_NUMBER
*/
@@ -52,6 +52,39 @@ abstract class _Image
*/
public static function create( $contents )
{
/* Work out the type */
$imageType = NULL;
$isAnimated = FALSE;
$signatures = array(
'gif' => array(
'47' . '49' . '46' . '38' . '37' . '61',
'47' . '49' . '46' . '38' . '39' . '61'
),
'jpeg' => array(
'ff' . 'd8' . 'ff'
),
'png' => array(
'89' . '50' . '4e' . '47' . '0d' . '0a' . '1a' . '0a'
)
);
$bytesNeeded = max( array_map( 'strlen', array_map( 'hex2bin', call_user_func_array( 'array_merge', $signatures ) ) ) );
$fileHeader = \substr( $contents, 0, $bytesNeeded );
foreach ( $signatures as $type => $_signatures )
{
foreach ( $_signatures as $signature )
{
if ( bin2hex( \substr( $fileHeader, 0, \strlen( hex2bin( $signature ) ) ) ) === $signature )
{
$imageType = $type;
break 2;
}
}
}
if ( $imageType === NULL )
{
throw new \InvalidArgumentException;
}
/* Create object */
if( \IPS\Settings::i()->image_suite == 'imagemagick' and class_exists( 'Imagick', FALSE ) )
{
@@ -61,29 +94,15 @@ abstract class _Image
{
$obj = new Image\Gd( $contents );
}
/* Work out the type */
preg_match( '/\A(?:(\xff\xd8\xff)|(GIF8[79]a)|(\x89PNG\x0d\x0a)|(BM)|(\x49\x49(?:\x2a\x00|\x00\x4a))|(FORM.{4}ILBM))/', $contents, $matches );
switch ( count( $matches ) )
$obj->type = $imageType;
/* Animated? */
if ( $obj->type === 'gif' and (boolean) preg_match( '#(\x00\x21\xF9\x04.{4}\x00\x2C.*){2,}#s', $contents ) )
{
case 2:
$obj->type = 'jpeg';
break;
case 3:
$obj->type = 'gif';
if ( (boolean) preg_match( '#(\x00\x21\xF9\x04.{4}\x00\x2C.*){2,}#s', $contents ) )
{
$obj->isAnimatedGif = TRUE;
$obj->contents = $contents;
}
break;
case 4:
$obj->type = 'png';
break;
default:
throw new \InvalidArgumentException;
$obj->isAnimatedGif = TRUE;
$obj->contents = $contents;
}
/* Set EXIF data immediately */
if( static::exifSupported() )
{
@@ -149,7 +168,7 @@ abstract class _Image
/**
* @brief Type ('png', 'jpeg' or 'gif')
*/
protected $type;
public $type;
/**
* @brief Width
@@ -164,7 +183,7 @@ abstract class _Image
/**
* @brief Is this an animated gif?
*/
protected $isAnimatedGif = FALSE;
public $isAnimatedGif = FALSE;
/**
* @brief Contents of the image file when animated gif