Issues in Image.php (master) - Issues in master - ByTIC/framework - Measure and Improve Code Quality continuously with Scrutinizer

Issues (917)

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Cross-Site Scripting

Cross-Site Scripting enables an attacker to inject code into the response of a web-request that is viewed by other users. It can for example be used to bypass access controls, or even to take over other users' accounts.

File Exposure

File Exposure allows an attacker to gain access to local files that he should not be able to access. These files can for example include database credentials, or other configuration files.

File Manipulation

File Manipulation enables an attacker to write custom data to files. This potentially leads to injection of arbitrary code on the server.

Object Injection

Object Injection enables an attacker to inject an object into PHP code, and can lead to arbitrary code execution, file exposure, or file manipulation attacks.

Code Injection

Code Injection enables an attacker to execute arbitrary code on the server.

Response Splitting

Response Splitting can be used to send arbitrary responses.

File Inclusion

File Inclusion enables an attacker to inject custom files into PHP's file loading mechanism, either explicitly passed to include, or for example via PHP's auto-loading mechanism.

Command Injection

Command Injection enables an attacker to inject a shell command that is execute with the privileges of the web-server. This can be used to expose sensitive data, or gain access of your server.

SQL Injection

SQL Injection enables an attacker to execute arbitrary SQL code on your database server gaining access to user data, or manipulating user data.

XPath Injection

XPath Injection enables an attacker to modify the parts of XML document that are read. If that XML document is for example used for authentication, this can lead to further vulnerabilities similar to SQL Injection.

LDAP Injection

LDAP Injection enables an attacker to inject LDAP statements potentially granting permission to run unauthorized queries, or modify content inside the LDAP tree.

Header Injection

Other Vulnerability

This category comprises other attack vectors such as manipulating the PHP runtime, loading custom extensions, freezing the runtime, or similar.

Regex Injection

Regex Injection enables an attacker to execute arbitrary code in your PHP process.

XML Injection

XML Injection enables an attacker to read files on your local filesystem including configuration files, or can be abused to freeze your web-server process.

Variable Injection

Variable Injection enables an attacker to overwrite program variables with custom data, and can lead to further vulnerabilities.

Unfortunately, the security analysis is currently not available for your project. If you are a non-commercial open-source project, please contact support to gain access.

src/Filesystem/Image.php (4 issues)

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<?php

namespace Nip\Filesystem;

/**
 * Nip Framework
 *
 * @category   Nip
 * @copyright  2009 Nip Framework
 * @license    http://www.opensource.org/licenses/mit-license.php The MIT License
 * @version    SVN: $Id: Image.php 193 2009-06-23 23:11:53Z victorstanciu $
 */
class Image extends File

{

    public $extensions = ["jpg", "jpeg", "gif", "png"];
    public $quality = 90;
    public $type = 'jpg';
    public $max_width = false;
    public $errors = [];

    protected $_resource;
    protected $_file;
    protected $_upload;
    protected $_width;
    protected $_height;

    /**
     * @param array $upload
     */
    public function setResourceFromUpload($upload)
    {
        $this->_upload = $upload;
        $this->setResourceFromFile($upload['tmp_name']);
    }

    /**
     * @param string $path
     * @return bool
     */
    public function setResourceFromFile($path)
    {
        $this->_file = $path;
        if (file_exists($path)) {
            $details = getimagesize($path);

            switch ($details['mime']) {
                case 'image/gif':
                    $this->type = 'gif';
                    if (imagetypes() & IMG_GIF) {
                        $this->_resource = imagecreatefromgif($path);
                    }
                    break;
                case 'image/jpeg':
                    $this->type = 'jpg';
                    if (imagetypes() & IMG_JPG) {
                        $this->_resource = imagecreatefromjpeg($path);
                    }
                    break;
                case 'image/png':
                    $this->type = 'png';
                    if (imagetypes() & IMG_PNG) {
                        $this->_resource = imagecreatefrompng($path);
                    }
                    break;
            }

            $this->getWidth();
            $this->getHeight();

            return true;
        } else {
            trigger_error("Cannot find file $path", E_USER_ERROR);
        }

        return false;
    }

    /**
     * @return int
     */
    public function getWidth()
    {
        if (!$this->_width && $this->_resource) {
            $this->setWidth(imagesx($this->_resource));
        }

        return $this->_width;
    }

    /**
     * @param int $width
     */
    public function setWidth($width)
    {
        $this->_width = $width;
    }

    /**
     * @return int
     */
    public function getHeight()
    {
        if (!$this->_height && $this->_resource) {
            $this->setHeight(imagesy($this->_resource));
        }

        return $this->_height;
    }

    /**
     * @param int $height
     */
    public function setHeight($height)
    {
        $this->_height = $height;
    }

    /**
     * @param string $name
     */
    public function setBaseName($name)
    {
        $name = $name . '.' . $this->type;
        $this->setName($name);
    }

    /**
     * @param string $name
     */
    public function setName($name)
    {
        $this->name = $name;
        $this->url = dirname($this->url) . '/' . $this->name;
        $this->path = dirname($this->path) . '/' . $this->name;
    }

    /**
     * @return bool
     */
    public function save()
    {
        if (Nip_File_System::instance()->createDirectory(dirname($this->path))) {

            switch ($this->type) {
                case 'png':
                    if ($this->quality > 9) {
                        if ($this->quality < 100) {
                            $this->quality = $this->quality / 10;
                        } else {
                            $this->quality = 9;
                        }
                    }
                    $this->quality = abs($this->quality - 9);
class Id
{
    public $id;

    public function __construct($id)
    {
        $this->id = $id;
    }

}

class Account
{
    /** @var  Id $id */
    public $id;
}

$account_id = false;

if (starsAreRight()) {
    $account_id = new Id(42);
}

$account = new Account();
if ($account instanceof Id)
{
    $account->id = $account_id;
}
                    $this->quality = 0;

                    $newImg = imagecreatetruecolor($this->_width, $this->_height);
                    imagealphablending($newImg, false);
                    imagesavealpha($newImg, true);

                    imagecopyresampled($newImg, $this->_resource, 0, 0, 0, 0, $this->_width, $this->_height, $this->_width, $this->_height);

                    $return = imagepng($newImg, $this->path, $this->quality);
                    break;
                case 'jpg':
                default:
                    $return = imagejpeg($this->_resource, $this->path, $this->quality);
                    break;
            }

            if ($return) {
                chmod($this->path, 0777);
                return true;
            }
            $this->errors[] = 'Error saving file';
        } else {
            $this->errors[] = 'Error creating directory';
        }
        return false;
    }

    public function grayscaleFade()
    {
        $this->grayscaleFilter();
        imagefilter($this->_resource, IMG_FILTER_BRIGHTNESS, 50);
    }

    public function grayscaleFilter()
    {
        imagefilter($this->_resource, IMG_FILTER_GRAYSCALE);
    }

    public function resize($max_width = false, $max_height = false)
    {
        if (!$max_width) {
            if ($this->max_width) {
                $max_width = $this->max_width;
            } else {
                $max_width = $this->getWidth();
            }
        }

        if (!$max_height) {
            if ($this->max_height) {

                $max_height = $this->max_height;

            } else {
                $max_height = $this->getHeight();
            }
        }

        $ratio = $this->getRatio();
        $target_ratio = $max_width / $max_height;

        if ($ratio > $target_ratio) {
            $new_width = $max_width;
            $new_height = round($max_width / $ratio);
        } else {
            $new_height = $max_height;
            $new_width = round($max_height * $ratio);
        }

        $image = imagecreatetruecolor($new_width, $new_height);
        imagealphablending($image, false);
        imagesavealpha($image, true);

        imagecopyresampled($image, $this->_resource, 0, 0, 0, 0, $new_width, $new_height, $this->getWidth(), $this->getHeight());

        $this->_width = $new_width;
        $this->_height = $new_height;
        $this->_resource = $image;

        return $this;
    }

    public function getRatio()
    {
        return $this->getWidth() / $this->getHeight();
    }

    public function cropToCenter($cWidth, $cHeight)
    {

        $this->resizeToLarge($cWidth, $cHeight);

        $width = $this->getWidth();
        $height = $this->getHeight();

        $x0 = round(abs(($width - $cWidth) / 2), 0);
        $y0 = round(abs(($height - $cHeight) / 2), 0);

        $this->crop($x0, $y0, $cWidth, $cHeight, $cWidth, $cHeight);
    }

    /**
     * @param bool|int $max_width
     * @param bool|int $max_height
     * @return $this
     */
    public function resizeToLarge($max_width = false, $max_height = false)
    {
        if (!$max_width) {
            $max_width = $this->getWidth();
        }

        if (!$max_height) {
            $max_height = $this->getHeight();
        }

        $sourceRatio = $this->getRatio();
        $target_ratio = $max_width / $max_height;

        if ($sourceRatio > $target_ratio) {
            $new_height = $max_height;
            $new_width = ( int )($max_height * $sourceRatio);
        } else {
            $new_width = $max_width;
            $new_height = ( int )($max_width / $sourceRatio);
        }

        $image = imagecreatetruecolor($new_width, $new_height);
        imagealphablending($image, false);
        imagesavealpha($image, true);

        imagecopyresampled($image, $this->_resource, 0, 0, 0, 0, $new_width, $new_height, $this->getWidth(), $this->getHeight());

        $this->_width = $new_width;
        $this->_height = $new_height;
        $this->_resource = $image;

        return $this;
    }

    /**
     * @param $x
     * @param $y
     * @param $dwidth
     * @param $dheight
     * @param $swidth
     * @param $sheight
     */
    public function crop($x, $y, $dwidth, $dheight, $swidth, $sheight)
    {
        $image = imagecreatetruecolor($dwidth, $dheight);
        imagealphablending($image, false);
        imagesavealpha($image, true);

        imagecopyresampled($image, $this->_resource,
            0, 0,
            $x, $y,
            $dwidth, $dheight,
            $swidth, $sheight);

        $this->_width = $dwidth;
        $this->_height = $dheight;
        $this->_resource = $image;
    }

    /**
     * @param int $amount
     * @param float $radius
     * @param int $threshold
     * @return $this
     */
    public function unsharpMask($amount = 80, $radius = 0.5, $threshold = 3)
    {
        $img = &$this->_resource;

        if ($amount > 500) {
            $amount = 500;
        }
        $amount = $amount * 0.016;
        if ($radius > 50) {
            $radius = 50;
        }
        $radius = $radius * 2;
        if ($threshold > 255) {
            $threshold = 255;
        }

        $radius = abs(round($radius));
        if ($radius == 0) {
            return;
        }

        $w = $this->_width;
        $h = $this->_height;

        $imgCanvas = imagecreatetruecolor($w, $h);
        $imgBlur = imagecreatetruecolor($w, $h);

        if (function_exists('imageconvolution')) {
            $matrix = [[1, 2, 1], [2, 4, 2], [1, 2, 1]];
            imagecopy($imgBlur, $img, 0, 0, 0, 0, $w, $h);
            imageconvolution($imgBlur, $matrix, 16, 0);
        } else {
            for ($i = 0; $i < $radius; $i++) {
                imagecopy($imgBlur, $img, 0, 0, 1, 0, $w - 1, $h);
                imagecopymerge($imgBlur, $img, 1, 0, 0, 0, $w, $h, 50);
                imagecopymerge($imgBlur, $img, 0, 0, 0, 0, $w, $h, 50);
                imagecopy($imgCanvas, $imgBlur, 0, 0, 0, 0, $w, $h);

                imagecopymerge($imgBlur, $imgCanvas, 0, 0, 0, 1, $w, $h - 1, 33.33333);
                imagecopymerge($imgBlur, $imgCanvas, 0, 1, 0, 0, $w, $h, 25);
            }
        }

        if ($threshold > 0) {
            for ($x = 0; $x < $w - 1; $x++) {
                for ($y = 0; $y < $h; $y++) {

                    $rgbOrig = ImageColorAt($img, $x, $y);
                    $rOrig = (($rgbOrig >> 16) & 0xFF);
                    $gOrig = (($rgbOrig >> 8) & 0xFF);
                    $bOrig = ($rgbOrig & 0xFF);

                    $rgbBlur = ImageColorAt($imgBlur, $x, $y);

                    $rBlur = (($rgbBlur >> 16) & 0xFF);
                    $gBlur = (($rgbBlur >> 8) & 0xFF);
                    $bBlur = ($rgbBlur & 0xFF);

                    $rNew = (abs($rOrig - $rBlur) >= $threshold) ? max(0, min(255, ($amount * ($rOrig - $rBlur)) + $rOrig)) : $rOrig;
                    $gNew = (abs($gOrig - $gBlur) >= $threshold) ? max(0, min(255, ($amount * ($gOrig - $gBlur)) + $gOrig)) : $gOrig;
                    $bNew = (abs($bOrig - $bBlur) >= $threshold) ? max(0, min(255, ($amount * ($bOrig - $bBlur)) + $bOrig)) : $bOrig;

                    if (($rOrig != $rNew) || ($gOrig != $gNew) || ($bOrig != $bNew)) {
                        $pixCol = ImageColorAllocate($img, $rNew, $gNew, $bNew);
                        ImageSetPixel($img, $x, $y, $pixCol);
                    }
                }
            }
        } else {
            for ($x = 0; $x < $w; $x++) {
                for ($y = 0; $y < $h; $y++) {
                    $rgbOrig = ImageColorAt($img, $x, $y);
                    $rOrig = (($rgbOrig >> 16) & 0xFF);
                    $gOrig = (($rgbOrig >> 8) & 0xFF);
                    $bOrig = ($rgbOrig & 0xFF);

                    $rgbBlur = ImageColorAt($imgBlur, $x, $y);

                    $rBlur = (($rgbBlur >> 16) & 0xFF);
                    $gBlur = (($rgbBlur >> 8) & 0xFF);
                    $bBlur = ($rgbBlur & 0xFF);

                    $rNew = ($amount * ($rOrig - $rBlur)) + $rOrig;
                    if ($rNew > 255) {
                        $rNew = 255;
                    } elseif ($rNew < 0) {
                        $rNew = 0;
                    }
                    $gNew = ($amount * ($gOrig - $gBlur)) + $gOrig;
                    if ($gNew > 255) {
                        $gNew = 255;
                    } elseif ($gNew < 0) {
                        $gNew = 0;
                    }
                    $bNew = ($amount * ($bOrig - $bBlur)) + $bOrig;
                    if ($bNew > 255) {
                        $bNew = 255;
                    } elseif ($bNew < 0) {
                        $bNew = 0;
                    }
                    $rgbNew = ($rNew << 16) + ($gNew << 8) + $bNew;
                    ImageSetPixel($img, $x, $y, $rgbNew);
                }
            }
        }

        imagedestroy($imgCanvas);
        imagedestroy($imgBlur);

        return $this;
    }

    /**
     * @param Image $image
     * @return $this
     */
    public function copyResource($image)
    {
        $this->_width = $image->getWidth();
        $this->_height = $image->getHeight();
        $this->_resource = $image->getResource();

        return $this;
    }

    public function getResource()
    {
        return $this->_resource;
    }

    public function setResource($gdImage)
    {
        $this->_resource = $gdImage;
    }

    /**
     * @return mixed
     */
    public function getFile()
    {
        return $this->_file;
    }

    /**
     * @return string
     */
    public function getExtension()
    {
        return Nip_File_System::instance()->getExtension($this->path);
    }

}

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Issues (917)

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src/Filesystem/Image.php (4 issues)

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1		<?php
2
3		namespace Nip\Filesystem;
4
5		/**
6		* Nip Framework
7		*
8		* @category Nip
9		* @copyright 2009 Nip Framework
10		* @license http://www.opensource.org/licenses/mit-license.php The MIT License
11		* @version SVN: $Id: Image.php 193 2009-06-23 23:11:53Z victorstanciu $
12		*/
13	View Code Duplication	class Image extends File
		0 ignored issues – show Duplication introduced 2017-07-29 13:16 UTC by Report Bug Copy Issue Report Show Similar Issues like this This class seems to be duplicated in your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
14		{
15
16		public $extensions = ["jpg", "jpeg", "gif", "png"];
17		public $quality = 90;
18		public $type = 'jpg';
19		public $max_width = false;
20		public $errors = [];
21
22		protected $_resource;
23		protected $_file;
24		protected $_upload;
25		protected $_width;
26		protected $_height;
27
28		/**
29		* @param array $upload
30		*/
31		public function setResourceFromUpload($upload)
32		{
33		$this->_upload = $upload;
34		$this->setResourceFromFile($upload['tmp_name']);
35		}
36
37		/**
38		* @param string $path
39		* @return bool
40		*/
41		public function setResourceFromFile($path)
42		{
43		$this->_file = $path;
44		if (file_exists($path)) {
45		$details = getimagesize($path);
46
47		switch ($details['mime']) {
48		case 'image/gif':
49		$this->type = 'gif';
50		if (imagetypes() & IMG_GIF) {
51		$this->_resource = imagecreatefromgif($path);
52		}
53		break;
54		case 'image/jpeg':
55		$this->type = 'jpg';
56		if (imagetypes() & IMG_JPG) {
57		$this->_resource = imagecreatefromjpeg($path);
58		}
59		break;
60		case 'image/png':
61		$this->type = 'png';
62		if (imagetypes() & IMG_PNG) {
63		$this->_resource = imagecreatefrompng($path);
64		}
65		break;
66		}
67
68		$this->getWidth();
69		$this->getHeight();
70
71		return true;
72		} else {
73		trigger_error("Cannot find file $path", E_USER_ERROR);
74		}
75
76		return false;
77		}
78
79		/**
80		* @return int
81		*/
82		public function getWidth()
83		{
84		if (!$this->_width && $this->_resource) {
85		$this->setWidth(imagesx($this->_resource));
86		}
87
88		return $this->_width;
89		}
90
91		/**
92		* @param int $width
93		*/
94		public function setWidth($width)
95		{
96		$this->_width = $width;
97		}
98
99		/**
100		* @return int
101		*/
102		public function getHeight()
103		{
104		if (!$this->_height && $this->_resource) {
105		$this->setHeight(imagesy($this->_resource));
106		}
107
108		return $this->_height;
109		}
110
111		/**
112		* @param int $height
113		*/
114		public function setHeight($height)
115		{
116		$this->_height = $height;
117		}
118
119		/**
120		* @param string $name
121		*/
122		public function setBaseName($name)
123		{
124		$name = $name . '.' . $this->type;
125		$this->setName($name);
126		}
127
128		/**
129		* @param string $name
130		*/
131		public function setName($name)
132		{
133		$this->name = $name;
134		$this->url = dirname($this->url) . '/' . $this->name;
135		$this->path = dirname($this->path) . '/' . $this->name;
136		}
137
138		/**
139		* @return bool
140		*/
141		public function save()
142		{
143		if (Nip_File_System::instance()->createDirectory(dirname($this->path))) {
144
145		switch ($this->type) {
146		case 'png':
147		if ($this->quality > 9) {
148		if ($this->quality < 100) {
149		$this->quality = $this->quality / 10;
150		} else {
151		$this->quality = 9;
152		}
153		}
154		$this->quality = abs($this->quality - 9);
		0 ignored issues – show Documentation Bug introduced 2016-08-20 20:47 UTC by Report Bug Copy Issue Report Show Similar Issues like this It seems like `abs($this->quality - 9)` can also be of type `double`. However, the property `$quality` is declared as type `integer`. Maybe add an additional type check? Our type inference engine has found a suspicous assignment of a value to a property. This check raises an issue when a value that can be of a mixed type is assigned to a property that is type hinted more strictly. For example, imagine you have a variable `$accountId` that can either hold an Id object or false (if there is no account id yet). Your code now assigns that value to the `id` property of an instance of the `Account` class. This class holds a proper account, so the id value must no longer be false. Either this assignment is in error or a type check should be added for that assignment. class Id { public $id; public function __construct($id) { $this->id = $id; } } class Account { /** @var Id $id */ public $id; } $account_id = false; if (starsAreRight()) { $account_id = new Id(42); } $account = new Account(); if ($account instanceof Id) { $account->id = $account_id; } Loading history...
155		$this->quality = 0;
156
157		$newImg = imagecreatetruecolor($this->_width, $this->_height);
158		imagealphablending($newImg, false);
159		imagesavealpha($newImg, true);
160
161		imagecopyresampled($newImg, $this->_resource, 0, 0, 0, 0, $this->_width, $this->_height, $this->_width, $this->_height);
162
163		$return = imagepng($newImg, $this->path, $this->quality);
164		break;
165		case 'jpg':
166		default:
167		$return = imagejpeg($this->_resource, $this->path, $this->quality);
168		break;
169		}
170
171		if ($return) {
172		chmod($this->path, 0777);
173		return true;
174		}
175		$this->errors[] = 'Error saving file';
176		} else {
177		$this->errors[] = 'Error creating directory';
178		}
179		return false;
180		}
181
182		public function grayscaleFade()
183		{
184		$this->grayscaleFilter();
185		imagefilter($this->_resource, IMG_FILTER_BRIGHTNESS, 50);
186		}
187
188		public function grayscaleFilter()
189		{
190		imagefilter($this->_resource, IMG_FILTER_GRAYSCALE);
191		}
192
193		public function resize($max_width = false, $max_height = false)
194		{
195		if (!$max_width) {
196		if ($this->max_width) {
197		$max_width = $this->max_width;
198		} else {
199		$max_width = $this->getWidth();
200		}
201		}
202
203		if (!$max_height) {
204		if ($this->max_height) {
		0 ignored issues – show Bug introduced 2016-08-20 20:47 UTC by Report Bug Copy Issue Report Show Similar Issues like this The property `max_height` does not seem to exist. Did you mean `_height`? An attempt at access to an undefined property has been detected. This may either be a typographical error or the property has been renamed but there are still references to its old name. If you really want to allow access to undefined properties, you can define magic methods to allow access. See the php core documentation on Overloading. Loading history...
205		$max_height = $this->max_height;
		0 ignored issues – show Bug introduced 2016-08-20 20:47 UTC by Report Bug Copy Issue Report Show Similar Issues like this The property `max_height` does not seem to exist. Did you mean `_height`? An attempt at access to an undefined property has been detected. This may either be a typographical error or the property has been renamed but there are still references to its old name. If you really want to allow access to undefined properties, you can define magic methods to allow access. See the php core documentation on Overloading. Loading history...
206		} else {
207		$max_height = $this->getHeight();
208		}
209		}
210
211		$ratio = $this->getRatio();
212		$target_ratio = $max_width / $max_height;
213
214		if ($ratio > $target_ratio) {
215		$new_width = $max_width;
216		$new_height = round($max_width / $ratio);
217		} else {
218		$new_height = $max_height;
219		$new_width = round($max_height * $ratio);
220		}
221
222		$image = imagecreatetruecolor($new_width, $new_height);
223		imagealphablending($image, false);
224		imagesavealpha($image, true);
225
226		imagecopyresampled($image, $this->_resource, 0, 0, 0, 0, $new_width, $new_height, $this->getWidth(), $this->getHeight());
227
228		$this->_width = $new_width;
229		$this->_height = $new_height;
230		$this->_resource = $image;
231
232		return $this;
233		}
234
235		public function getRatio()
236		{
237		return $this->getWidth() / $this->getHeight();
238		}
239
240		public function cropToCenter($cWidth, $cHeight)
241		{
242
243		$this->resizeToLarge($cWidth, $cHeight);
244
245		$width = $this->getWidth();
246		$height = $this->getHeight();
247
248		$x0 = round(abs(($width - $cWidth) / 2), 0);
249		$y0 = round(abs(($height - $cHeight) / 2), 0);
250
251		$this->crop($x0, $y0, $cWidth, $cHeight, $cWidth, $cHeight);
252		}
253
254		/**
255		* @param bool\|int $max_width
256		* @param bool\|int $max_height
257		* @return $this
258		*/
259		public function resizeToLarge($max_width = false, $max_height = false)
260		{
261		if (!$max_width) {
262		$max_width = $this->getWidth();
263		}
264
265		if (!$max_height) {
266		$max_height = $this->getHeight();
267		}
268
269		$sourceRatio = $this->getRatio();
270		$target_ratio = $max_width / $max_height;
271
272		if ($sourceRatio > $target_ratio) {
273		$new_height = $max_height;
274		$new_width = ( int )($max_height * $sourceRatio);
275		} else {
276		$new_width = $max_width;
277		$new_height = ( int )($max_width / $sourceRatio);
278		}
279
280		$image = imagecreatetruecolor($new_width, $new_height);
281		imagealphablending($image, false);
282		imagesavealpha($image, true);
283
284		imagecopyresampled($image, $this->_resource, 0, 0, 0, 0, $new_width, $new_height, $this->getWidth(), $this->getHeight());
285
286		$this->_width = $new_width;
287		$this->_height = $new_height;
288		$this->_resource = $image;
289
290		return $this;
291		}
292
293		/**
294		* @param $x
295		* @param $y
296		* @param $dwidth
297		* @param $dheight
298		* @param $swidth
299		* @param $sheight
300		*/
301		public function crop($x, $y, $dwidth, $dheight, $swidth, $sheight)
302		{
303		$image = imagecreatetruecolor($dwidth, $dheight);
304		imagealphablending($image, false);
305		imagesavealpha($image, true);
306
307		imagecopyresampled($image, $this->_resource,
308		0, 0,
309		$x, $y,
310		$dwidth, $dheight,
311		$swidth, $sheight);
312
313		$this->_width = $dwidth;
314		$this->_height = $dheight;
315		$this->_resource = $image;
316		}
317
318		/**
319		* @param int $amount
320		* @param float $radius
321		* @param int $threshold
322		* @return $this
323		*/
324		public function unsharpMask($amount = 80, $radius = 0.5, $threshold = 3)
325		{
326		$img = &$this->_resource;
327
328		if ($amount > 500) {
329		$amount = 500;
330		}
331		$amount = $amount * 0.016;
332		if ($radius > 50) {
333		$radius = 50;
334		}
335		$radius = $radius * 2;
336		if ($threshold > 255) {
337		$threshold = 255;
338		}
339
340		$radius = abs(round($radius));
341		if ($radius == 0) {
342		return;
343		}
344
345		$w = $this->_width;
346		$h = $this->_height;
347
348		$imgCanvas = imagecreatetruecolor($w, $h);
349		$imgBlur = imagecreatetruecolor($w, $h);
350
351		if (function_exists('imageconvolution')) {
352		$matrix = [[1, 2, 1], [2, 4, 2], [1, 2, 1]];
353		imagecopy($imgBlur, $img, 0, 0, 0, 0, $w, $h);
354		imageconvolution($imgBlur, $matrix, 16, 0);
355		} else {
356		for ($i = 0; $i < $radius; $i++) {
357		imagecopy($imgBlur, $img, 0, 0, 1, 0, $w - 1, $h);
358		imagecopymerge($imgBlur, $img, 1, 0, 0, 0, $w, $h, 50);
359		imagecopymerge($imgBlur, $img, 0, 0, 0, 0, $w, $h, 50);
360		imagecopy($imgCanvas, $imgBlur, 0, 0, 0, 0, $w, $h);
361
362		imagecopymerge($imgBlur, $imgCanvas, 0, 0, 0, 1, $w, $h - 1, 33.33333);
363		imagecopymerge($imgBlur, $imgCanvas, 0, 1, 0, 0, $w, $h, 25);
364		}
365		}
366
367		if ($threshold > 0) {
368		for ($x = 0; $x < $w - 1; $x++) {
369		for ($y = 0; $y < $h; $y++) {
370
371		$rgbOrig = ImageColorAt($img, $x, $y);
372		$rOrig = (($rgbOrig >> 16) & 0xFF);
373		$gOrig = (($rgbOrig >> 8) & 0xFF);
374		$bOrig = ($rgbOrig & 0xFF);
375
376		$rgbBlur = ImageColorAt($imgBlur, $x, $y);
377
378		$rBlur = (($rgbBlur >> 16) & 0xFF);
379		$gBlur = (($rgbBlur >> 8) & 0xFF);
380		$bBlur = ($rgbBlur & 0xFF);
381
382		$rNew = (abs($rOrig - $rBlur) >= $threshold) ? max(0, min(255, ($amount * ($rOrig - $rBlur)) + $rOrig)) : $rOrig;
383		$gNew = (abs($gOrig - $gBlur) >= $threshold) ? max(0, min(255, ($amount * ($gOrig - $gBlur)) + $gOrig)) : $gOrig;
384		$bNew = (abs($bOrig - $bBlur) >= $threshold) ? max(0, min(255, ($amount * ($bOrig - $bBlur)) + $bOrig)) : $bOrig;
385
386		if (($rOrig != $rNew) \|\| ($gOrig != $gNew) \|\| ($bOrig != $bNew)) {
387		$pixCol = ImageColorAllocate($img, $rNew, $gNew, $bNew);
388		ImageSetPixel($img, $x, $y, $pixCol);
389		}
390		}
391		}
392		} else {
393		for ($x = 0; $x < $w; $x++) {
394		for ($y = 0; $y < $h; $y++) {
395		$rgbOrig = ImageColorAt($img, $x, $y);
396		$rOrig = (($rgbOrig >> 16) & 0xFF);
397		$gOrig = (($rgbOrig >> 8) & 0xFF);
398		$bOrig = ($rgbOrig & 0xFF);
399
400		$rgbBlur = ImageColorAt($imgBlur, $x, $y);
401
402		$rBlur = (($rgbBlur >> 16) & 0xFF);
403		$gBlur = (($rgbBlur >> 8) & 0xFF);
404		$bBlur = ($rgbBlur & 0xFF);
405
406		$rNew = ($amount * ($rOrig - $rBlur)) + $rOrig;
407		if ($rNew > 255) {
408		$rNew = 255;
409		} elseif ($rNew < 0) {
410		$rNew = 0;
411		}
412		$gNew = ($amount * ($gOrig - $gBlur)) + $gOrig;
413		if ($gNew > 255) {
414		$gNew = 255;
415		} elseif ($gNew < 0) {
416		$gNew = 0;
417		}
418		$bNew = ($amount * ($bOrig - $bBlur)) + $bOrig;
419		if ($bNew > 255) {
420		$bNew = 255;
421		} elseif ($bNew < 0) {
422		$bNew = 0;
423		}
424		$rgbNew = ($rNew << 16) + ($gNew << 8) + $bNew;
425		ImageSetPixel($img, $x, $y, $rgbNew);
426		}
427		}
428		}
429
430		imagedestroy($imgCanvas);
431		imagedestroy($imgBlur);
432
433		return $this;
434		}
435
436		/**
437		* @param Image $image
438		* @return $this
439		*/
440		public function copyResource($image)
441		{
442		$this->_width = $image->getWidth();
443		$this->_height = $image->getHeight();
444		$this->_resource = $image->getResource();
445
446		return $this;
447		}
448
449		public function getResource()
450		{
451		return $this->_resource;
452		}
453
454		public function setResource($gdImage)
455		{
456		$this->_resource = $gdImage;
457		}
458
459		/**
460		* @return mixed
461		*/
462		public function getFile()
463		{
464		return $this->_file;
465		}
466
467		/**
468		* @return string
469		*/
470		public function getExtension()
471		{
472		return Nip_File_System::instance()->getExtension($this->path);
473		}
474
475		}

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