init
This commit is contained in:
emmymayo
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<?php
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+423
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<?php
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namespace MailPoetVendor\Gregwar\Captcha;
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if (!defined('ABSPATH')) exit;
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use Exception;
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class CaptchaBuilder implements CaptchaBuilderInterface
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{
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protected $fingerprint = array();
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protected $useFingerprint = \false;
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protected $textColor = array();
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protected $lineColor = null;
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protected $backgroundColor = null;
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protected $backgroundImages = array();
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protected $contents = null;
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protected $phrase = null;
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protected $builder;
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protected $distortion = \true;
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protected $maxFrontLines = null;
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protected $maxBehindLines = null;
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protected $maxAngle = 8;
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protected $maxOffset = 5;
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protected $interpolation = \true;
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protected $ignoreAllEffects = \false;
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protected $allowedBackgroundImageTypes = array('image/png', 'image/jpeg', 'image/gif');
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public function getContents()
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{
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return $this->contents;
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}
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public function setInterpolation($interpolate = \true)
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{
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$this->interpolation = $interpolate;
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return $this;
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}
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public $tempDir = 'temp/';
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public function __construct($phrase = null, PhraseBuilderInterface $builder = null)
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{
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if ($builder === null) {
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$this->builder = new PhraseBuilder();
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} else {
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$this->builder = $builder;
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}
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$this->phrase = \is_string($phrase) ? $phrase : $this->builder->build($phrase);
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}
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public function setPhrase($phrase)
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{
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$this->phrase = (string) $phrase;
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}
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public function setDistortion($distortion)
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{
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$this->distortion = (bool) $distortion;
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return $this;
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}
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public function setMaxBehindLines($maxBehindLines)
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{
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$this->maxBehindLines = $maxBehindLines;
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return $this;
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}
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public function setMaxFrontLines($maxFrontLines)
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{
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$this->maxFrontLines = $maxFrontLines;
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return $this;
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}
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public function setMaxAngle($maxAngle)
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{
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$this->maxAngle = $maxAngle;
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return $this;
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}
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public function setMaxOffset($maxOffset)
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{
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$this->maxOffset = $maxOffset;
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return $this;
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}
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public function getPhrase()
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{
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return $this->phrase;
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}
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public function testPhrase($phrase)
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{
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return $this->builder->niceize($phrase) == $this->builder->niceize($this->getPhrase());
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}
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public static function create($phrase = null)
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{
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return new self($phrase);
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}
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public function setTextColor($r, $g, $b)
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{
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$this->textColor = array($r, $g, $b);
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return $this;
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}
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public function setBackgroundColor($r, $g, $b)
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{
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$this->backgroundColor = array($r, $g, $b);
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return $this;
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}
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public function setLineColor($r, $g, $b)
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{
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$this->lineColor = array($r, $g, $b);
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return $this;
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}
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public function setIgnoreAllEffects($ignoreAllEffects)
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{
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$this->ignoreAllEffects = $ignoreAllEffects;
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return $this;
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}
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public function setBackgroundImages(array $backgroundImages)
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{
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$this->backgroundImages = $backgroundImages;
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return $this;
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}
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protected function drawLine($image, $width, $height, $tcol = null)
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{
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if ($this->lineColor === null) {
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$red = $this->rand(100, 255);
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$green = $this->rand(100, 255);
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$blue = $this->rand(100, 255);
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} else {
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$red = $this->lineColor[0];
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$green = $this->lineColor[1];
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$blue = $this->lineColor[2];
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}
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if ($tcol === null) {
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$tcol = \imagecolorallocate($image, $red, $green, $blue);
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}
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if ($this->rand(0, 1)) {
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// Horizontal
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$Xa = $this->rand(0, $width / 2);
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$Ya = $this->rand(0, $height);
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$Xb = $this->rand($width / 2, $width);
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$Yb = $this->rand(0, $height);
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} else {
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// Vertical
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$Xa = $this->rand(0, $width);
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$Ya = $this->rand(0, $height / 2);
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$Xb = $this->rand(0, $width);
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$Yb = $this->rand($height / 2, $height);
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}
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\imagesetthickness($image, $this->rand(1, 3));
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\imageline($image, $Xa, $Ya, $Xb, $Yb, $tcol);
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}
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protected function postEffect($image)
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{
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if (!\function_exists('imagefilter')) {
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return;
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}
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if ($this->backgroundColor != null || $this->textColor != null) {
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return;
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}
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// Negate ?
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if ($this->rand(0, 1) == 0) {
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\imagefilter($image, \IMG_FILTER_NEGATE);
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}
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// Edge ?
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if ($this->rand(0, 10) == 0) {
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\imagefilter($image, \IMG_FILTER_EDGEDETECT);
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}
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// Contrast
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\imagefilter($image, \IMG_FILTER_CONTRAST, $this->rand(-50, 10));
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// Colorize
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if ($this->rand(0, 5) == 0) {
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\imagefilter($image, \IMG_FILTER_COLORIZE, $this->rand(-80, 50), $this->rand(-80, 50), $this->rand(-80, 50));
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}
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}
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protected function writePhrase($image, $phrase, $font, $width, $height)
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{
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$length = \mb_strlen($phrase);
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if ($length === 0) {
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return \imagecolorallocate($image, 0, 0, 0);
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}
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// Gets the text size and start position
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$size = (int) \round($width / $length) - $this->rand(0, 3) - 1;
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$box = \imagettfbbox($size, 0, $font, $phrase);
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$textWidth = $box[2] - $box[0];
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$textHeight = $box[1] - $box[7];
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$x = (int) \round(($width - $textWidth) / 2);
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$y = (int) \round(($height - $textHeight) / 2) + $size;
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if (!$this->textColor) {
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$textColor = array($this->rand(0, 150), $this->rand(0, 150), $this->rand(0, 150));
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} else {
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$textColor = $this->textColor;
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}
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$col = \imagecolorallocate($image, $textColor[0], $textColor[1], $textColor[2]);
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// Write the letters one by one, with random angle
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for ($i = 0; $i < $length; $i++) {
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$symbol = \mb_substr($phrase, $i, 1);
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$box = \imagettfbbox($size, 0, $font, $symbol);
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$w = $box[2] - $box[0];
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$angle = $this->rand(-$this->maxAngle, $this->maxAngle);
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$offset = $this->rand(-$this->maxOffset, $this->maxOffset);
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\imagettftext($image, $size, $angle, $x, $y + $offset, $col, $font, $symbol);
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$x += $w;
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}
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return $col;
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}
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public function isOCRReadable()
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{
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if (!\is_dir($this->tempDir)) {
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@\mkdir($this->tempDir, 0755, \true);
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}
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$tempj = $this->tempDir . \uniqid('captcha', \true) . '.jpg';
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$tempp = $this->tempDir . \uniqid('captcha', \true) . '.pgm';
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$this->save($tempj);
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\shell_exec("convert {$tempj} {$tempp}");
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$value = \trim(\strtolower(\shell_exec("ocrad {$tempp}")));
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@\unlink($tempj);
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@\unlink($tempp);
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return $this->testPhrase($value);
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}
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public function buildAgainstOCR($width = 150, $height = 40, $font = null, $fingerprint = null)
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{
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do {
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$this->build($width, $height, $font, $fingerprint);
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} while ($this->isOCRReadable());
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}
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public function build($width = 150, $height = 40, $font = null, $fingerprint = null)
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{
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if (null !== $fingerprint) {
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$this->fingerprint = $fingerprint;
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$this->useFingerprint = \true;
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} else {
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$this->fingerprint = array();
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$this->useFingerprint = \false;
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}
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if ($font === null) {
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$font = __DIR__ . '/Font/captcha' . $this->rand(0, 5) . '.ttf';
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}
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if (empty($this->backgroundImages)) {
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// if background images list is not set, use a color fill as a background
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$image = \imagecreatetruecolor($width, $height);
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if ($this->backgroundColor == null) {
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$bg = \imagecolorallocate($image, $this->rand(200, 255), $this->rand(200, 255), $this->rand(200, 255));
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} else {
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$color = $this->backgroundColor;
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$bg = \imagecolorallocate($image, $color[0], $color[1], $color[2]);
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}
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\imagefill($image, 0, 0, $bg);
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} else {
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// use a random background image
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$randomBackgroundImage = $this->backgroundImages[\rand(0, \count($this->backgroundImages) - 1)];
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$imageType = $this->validateBackgroundImage($randomBackgroundImage);
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$image = $this->createBackgroundImageFromType($randomBackgroundImage, $imageType);
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}
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// Apply effects
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if (!$this->ignoreAllEffects) {
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$square = $width * $height;
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$effects = $this->rand($square / 3000, $square / 2000);
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// set the maximum number of lines to draw in front of the text
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if ($this->maxBehindLines != null && $this->maxBehindLines > 0) {
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$effects = \min($this->maxBehindLines, $effects);
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}
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if ($this->maxBehindLines !== 0) {
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for ($e = 0; $e < $effects; $e++) {
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$this->drawLine($image, $width, $height);
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}
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}
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}
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// Write CAPTCHA text
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$color = $this->writePhrase($image, $this->phrase, $font, $width, $height);
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// Apply effects
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if (!$this->ignoreAllEffects) {
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$square = $width * $height;
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$effects = $this->rand($square / 3000, $square / 2000);
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// set the maximum number of lines to draw in front of the text
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if ($this->maxFrontLines != null && $this->maxFrontLines > 0) {
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$effects = \min($this->maxFrontLines, $effects);
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}
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if ($this->maxFrontLines !== 0) {
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for ($e = 0; $e < $effects; $e++) {
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$this->drawLine($image, $width, $height, $color);
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}
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}
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}
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// Distort the image
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if ($this->distortion && !$this->ignoreAllEffects) {
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$image = $this->distort($image, $width, $height, $bg);
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}
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// Post effects
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if (!$this->ignoreAllEffects) {
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$this->postEffect($image);
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}
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$this->contents = $image;
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return $this;
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}
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public function distort($image, $width, $height, $bg)
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{
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$contents = \imagecreatetruecolor($width, $height);
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$X = $this->rand(0, $width);
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$Y = $this->rand(0, $height);
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$phase = $this->rand(0, 10);
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$scale = 1.1 + $this->rand(0, 10000) / 30000;
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for ($x = 0; $x < $width; $x++) {
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for ($y = 0; $y < $height; $y++) {
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$Vx = $x - $X;
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$Vy = $y - $Y;
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$Vn = \sqrt($Vx * $Vx + $Vy * $Vy);
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if ($Vn != 0) {
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$Vn2 = $Vn + 4 * \sin($Vn / 30);
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$nX = $X + $Vx * $Vn2 / $Vn;
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$nY = $Y + $Vy * $Vn2 / $Vn;
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} else {
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$nX = $X;
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$nY = $Y;
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}
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$nY = $nY + $scale * \sin($phase + $nX * 0.2);
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if ($this->interpolation) {
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$p = $this->interpolate($nX - \floor($nX), $nY - \floor($nY), $this->getCol($image, \floor($nX), \floor($nY), $bg), $this->getCol($image, \ceil($nX), \floor($nY), $bg), $this->getCol($image, \floor($nX), \ceil($nY), $bg), $this->getCol($image, \ceil($nX), \ceil($nY), $bg));
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} else {
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$p = $this->getCol($image, \round($nX), \round($nY), $bg);
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}
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if ($p == 0) {
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$p = $bg;
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}
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\imagesetpixel($contents, $x, $y, $p);
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}
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}
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return $contents;
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}
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public function save($filename, $quality = 90)
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{
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\imagejpeg($this->contents, $filename, $quality);
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}
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public function getGd()
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{
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return $this->contents;
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}
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public function get($quality = 90)
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{
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\ob_start();
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$this->output($quality);
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return \ob_get_clean();
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}
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public function inline($quality = 90)
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{
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return 'data:image/jpeg;base64,' . \base64_encode($this->get($quality));
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}
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public function output($quality = 90)
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{
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\imagejpeg($this->contents, null, $quality);
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}
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public function getFingerprint()
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{
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return $this->fingerprint;
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}
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protected function rand($min, $max)
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{
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if (!\is_array($this->fingerprint)) {
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$this->fingerprint = array();
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}
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if ($this->useFingerprint) {
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$value = \current($this->fingerprint);
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\next($this->fingerprint);
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} else {
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$value = \mt_rand((int) $min, (int) $max);
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$this->fingerprint[] = $value;
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}
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return $value;
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}
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protected function interpolate($x, $y, $nw, $ne, $sw, $se)
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{
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list($r0, $g0, $b0) = $this->getRGB($nw);
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list($r1, $g1, $b1) = $this->getRGB($ne);
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list($r2, $g2, $b2) = $this->getRGB($sw);
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list($r3, $g3, $b3) = $this->getRGB($se);
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$cx = 1.0 - $x;
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$cy = 1.0 - $y;
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$m0 = $cx * $r0 + $x * $r1;
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$m1 = $cx * $r2 + $x * $r3;
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$r = (int) ($cy * $m0 + $y * $m1);
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$m0 = $cx * $g0 + $x * $g1;
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$m1 = $cx * $g2 + $x * $g3;
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$g = (int) ($cy * $m0 + $y * $m1);
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$m0 = $cx * $b0 + $x * $b1;
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$m1 = $cx * $b2 + $x * $b3;
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$b = (int) ($cy * $m0 + $y * $m1);
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return $r << 16 | $g << 8 | $b;
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}
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protected function getCol($image, $x, $y, $background)
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{
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$L = \imagesx($image);
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$H = \imagesy($image);
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if ($x < 0 || $x >= $L || $y < 0 || $y >= $H) {
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return $background;
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}
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return \imagecolorat($image, $x, $y);
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}
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protected function getRGB($col)
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{
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return array((int) ($col >> 16) & 0xff, (int) ($col >> 8) & 0xff, (int) $col & 0xff);
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}
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protected function validateBackgroundImage($backgroundImage)
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{
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// check if file exists
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if (!\file_exists($backgroundImage)) {
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$backgroundImageExploded = \explode('/', $backgroundImage);
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$imageFileName = \count($backgroundImageExploded) > 1 ? $backgroundImageExploded[\count($backgroundImageExploded) - 1] : $backgroundImage;
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throw new Exception('Invalid background image: ' . $imageFileName);
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}
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// check image type
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$finfo = \finfo_open(\FILEINFO_MIME_TYPE);
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// return mime type ala mimetype extension
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$imageType = \finfo_file($finfo, $backgroundImage);
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\finfo_close($finfo);
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if (!\in_array($imageType, $this->allowedBackgroundImageTypes)) {
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throw new Exception('Invalid background image type! Allowed types are: ' . \join(', ', $this->allowedBackgroundImageTypes));
|
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}
|
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return $imageType;
|
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}
|
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protected function createBackgroundImageFromType($backgroundImage, $imageType)
|
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{
|
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switch ($imageType) {
|
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case 'image/jpeg':
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$image = \imagecreatefromjpeg($backgroundImage);
|
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break;
|
||||
case 'image/png':
|
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$image = \imagecreatefrompng($backgroundImage);
|
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break;
|
||||
case 'image/gif':
|
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$image = \imagecreatefromgif($backgroundImage);
|
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break;
|
||||
default:
|
||||
throw new Exception('Not supported file type for background image!');
|
||||
}
|
||||
return $image;
|
||||
}
|
||||
}
|
||||
+10
@@ -0,0 +1,10 @@
|
||||
<?php
|
||||
namespace MailPoetVendor\Gregwar\Captcha;
|
||||
if (!defined('ABSPATH')) exit;
|
||||
interface CaptchaBuilderInterface
|
||||
{
|
||||
public function build($width, $height, $font, $fingerprint);
|
||||
public function save($filename, $quality);
|
||||
public function get($quality);
|
||||
public function output($quality);
|
||||
}
|
||||
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+1
@@ -0,0 +1 @@
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<?php
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+46
@@ -0,0 +1,46 @@
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<?php
|
||||
namespace MailPoetVendor\Gregwar\Captcha;
|
||||
if (!defined('ABSPATH')) exit;
|
||||
use MailPoetVendor\Symfony\Component\Finder\Finder;
|
||||
class ImageFileHandler
|
||||
{
|
||||
protected $imageFolder;
|
||||
protected $webPath;
|
||||
protected $gcFreq;
|
||||
protected $expiration;
|
||||
public function __construct($imageFolder, $webPath, $gcFreq, $expiration)
|
||||
{
|
||||
$this->imageFolder = $imageFolder;
|
||||
$this->webPath = $webPath;
|
||||
$this->gcFreq = $gcFreq;
|
||||
$this->expiration = $expiration;
|
||||
}
|
||||
public function saveAsFile($contents)
|
||||
{
|
||||
$this->createFolderIfMissing();
|
||||
$filename = \md5(\uniqid()) . '.jpg';
|
||||
$filePath = $this->webPath . '/' . $this->imageFolder . '/' . $filename;
|
||||
\imagejpeg($contents, $filePath, 15);
|
||||
return '/' . $this->imageFolder . '/' . $filename;
|
||||
}
|
||||
public function collectGarbage()
|
||||
{
|
||||
if (!\mt_rand(1, $this->gcFreq) == 1) {
|
||||
return \false;
|
||||
}
|
||||
$this->createFolderIfMissing();
|
||||
$finder = new Finder();
|
||||
$criteria = \sprintf('<= now - %s minutes', $this->expiration);
|
||||
$finder->in($this->webPath . '/' . $this->imageFolder)->date($criteria);
|
||||
foreach ($finder->files() as $file) {
|
||||
\unlink($file->getPathname());
|
||||
}
|
||||
return \true;
|
||||
}
|
||||
protected function createFolderIfMissing()
|
||||
{
|
||||
if (!\file_exists($this->webPath . '/' . $this->imageFolder)) {
|
||||
\mkdir($this->webPath . '/' . $this->imageFolder, 0755);
|
||||
}
|
||||
}
|
||||
}
|
||||
+40
@@ -0,0 +1,40 @@
|
||||
<?php
|
||||
namespace MailPoetVendor\Gregwar\Captcha;
|
||||
if (!defined('ABSPATH')) exit;
|
||||
class PhraseBuilder implements PhraseBuilderInterface
|
||||
{
|
||||
public $length;
|
||||
public $charset;
|
||||
public function __construct($length = 5, $charset = 'abcdefghijklmnpqrstuvwxyz123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ')
|
||||
{
|
||||
$this->length = $length;
|
||||
$this->charset = $charset;
|
||||
}
|
||||
public function build($length = null, $charset = null)
|
||||
{
|
||||
if ($length !== null) {
|
||||
$this->length = $length;
|
||||
}
|
||||
if ($charset !== null) {
|
||||
$this->charset = $charset;
|
||||
}
|
||||
$phrase = '';
|
||||
$chars = \str_split($this->charset);
|
||||
for ($i = 0; $i < $this->length; $i++) {
|
||||
$phrase .= $chars[\array_rand($chars)];
|
||||
}
|
||||
return $phrase;
|
||||
}
|
||||
public function niceize($str)
|
||||
{
|
||||
return self::doNiceize($str);
|
||||
}
|
||||
public static function doNiceize($str)
|
||||
{
|
||||
return \strtr(\strtolower($str), '01', 'ol');
|
||||
}
|
||||
public static function comparePhrases($str1, $str2)
|
||||
{
|
||||
return self::doNiceize($str1) === self::doNiceize($str2);
|
||||
}
|
||||
}
|
||||
+8
@@ -0,0 +1,8 @@
|
||||
<?php
|
||||
namespace MailPoetVendor\Gregwar\Captcha;
|
||||
if (!defined('ABSPATH')) exit;
|
||||
interface PhraseBuilderInterface
|
||||
{
|
||||
public function build();
|
||||
public function niceize($str);
|
||||
}
|
||||
+1
@@ -0,0 +1 @@
|
||||
<?php
|
||||
@@ -0,0 +1 @@
|
||||
<?php
|
||||
@@ -0,0 +1 @@
|
||||
<?php
|
||||
@@ -0,0 +1 @@
|
||||
<?php
|
||||
Reference in New Issue
Block a user