From aed2fa343e22000a87bba4973add34d4a4ae8110 Mon Sep 17 00:00:00 2001 From: Gregwar Date: Mon, 21 Jan 2013 14:01:31 +0100 Subject: [PATCH] Depending on gregwar/captcha (see #42) --- Generator/CaptchaBuilder.php | 196 --------------------------------- Generator/CaptchaGenerator.php | 13 ++- Generator/PhraseBuilder.php | 23 ---- Resources/config/services.yml | 4 +- composer.json | 3 +- 5 files changed, 12 insertions(+), 227 deletions(-) delete mode 100644 Generator/CaptchaBuilder.php delete mode 100644 Generator/PhraseBuilder.php diff --git a/Generator/CaptchaBuilder.php b/Generator/CaptchaBuilder.php deleted file mode 100644 index 40c1dec..0000000 --- a/Generator/CaptchaBuilder.php +++ /dev/null @@ -1,196 +0,0 @@ - - * @author Jeremy Livingston - */ -class CaptchaBuilder -{ - /** - * @var array - */ - protected $fingerprint = array(); - - /** - * @var bool - */ - protected $useFingerprint = false; - - /** - * Generate the image - */ - public function build($width, $height, $font, $phrase, $fingerprint = null) - { - if (null !== $fingerprint) { - $this->fingerprint = $fingerprint; - $this->useFingerprint = true; - } else { - $this->fingerprint = array(); - $this->useFingerprint = false; - } - - $i = imagecreatetruecolor($width, $height); - $col = imagecolorallocate($i, $this->rand(0, 110), $this->rand(0, 110), $this->rand(0, 110)); - - imagefill($i, 0, 0, 0xFFFFFF); - - // Draw random lines - for ($t = 0; $t < 10; $t++) { - $tcol = imagecolorallocate($i, 100 + $this->rand(0, 150), 100 + $this->rand(0, 150), 100 + $this->rand(0, 150)); - $Xa = $this->rand(0, $width); - $Ya = $this->rand(0, $height); - $Xb = $this->rand(0, $width); - $Yb = $this->rand(0, $height); - imageline($i, $Xa, $Ya, $Xb, $Yb, $tcol); - } - - // Write CAPTCHA text - $size = $width / strlen($phrase); - $box = imagettfbbox($size, 0, $font, $phrase); - $textWidth = $box[2] - $box[0]; - $textHeight = $box[1] - $box[7]; - - imagettftext($i, $size, 0, ($width - $textWidth) / 2, ($height - $textHeight) / 2 + $size, $col, $font, $phrase); - - // Distort the image - $X = $this->rand(0, $width); - $Y = $this->rand(0, $height); - $phase = $this->rand(0, 10); - $scale = 1.3 + $this->rand(0, 10000) / 30000; - $contents = imagecreatetruecolor($width, $height); - - for ($x = 0; $x < $width; $x++) { - for ($y = 0; $y < $height; $y++) { - $Vx = $x - $X; - $Vy = $y - $Y; - $Vn = sqrt($Vx * $Vx + $Vy * $Vy); - - if ($Vn != 0) { - $Vn2 = $Vn + 4 * sin($Vn / 8); - $nX = $X + ($Vx * $Vn2 / $Vn); - $nY = $Y + ($Vy * $Vn2 / $Vn); - } else { - $nX = $X; - $nY = $Y; - } - $nY = $nY + $scale * sin($phase + $nX * 0.2); - - $p = $this->bilinearInterpolate($nX - floor($nX), $nY - floor($nY), - $this->getCol($i, floor($nX), floor($nY)), - $this->getCol($i, ceil($nX), floor($nY)), - $this->getCol($i, floor($nX), ceil($nY)), - $this->getCol($i, ceil($nX), ceil($nY))); - - if ($p == 0) { - $p = 0xFFFFFF; - } - - imagesetpixel($contents, $x, $y, $p); - } - } - - return $contents; - } - - /** - * @return array - */ - public function getFingerprint() - { - return $this->fingerprint; - } - - /** - * Returns a random number or the next number in the - * fingerprint - */ - protected function rand($min, $max) - { - if (!is_array($this->fingerprint)) { - $this->fingerprint = array(); - } - - if ($this->useFingerprint) { - $value = current($this->fingerprint); - next($this->fingerprint); - } else { - $value = mt_rand($min, $max); - $this->fingerprint[] = $value; - } - - return $value; - } - - /** - * @param $x - * @param $y - * @param $nw - * @param $ne - * @param $sw - * @param $se - * - * @return int - */ - protected function bilinearInterpolate($x, $y, $nw, $ne, $sw, $se) - { - list($r0, $g0, $b0) = $this->getRGB($nw); - list($r1, $g1, $b1) = $this->getRGB($ne); - list($r2, $g2, $b2) = $this->getRGB($sw); - list($r3, $g3, $b3) = $this->getRGB($se); - - $cx = 1.0 - $x; - $cy = 1.0 - $y; - - $m0 = $cx * $r0 + $x * $r1; - $m1 = $cx * $r2 + $x * $r3; - $r = (int)($cy * $m0 + $y * $m1); - - $m0 = $cx * $g0 + $x * $g1; - $m1 = $cx * $g2 + $x * $g3; - $g = (int)($cy * $m0 + $y * $m1); - - $m0 = $cx * $b0 + $x * $b1; - $m1 = $cx * $b2 + $x * $b3; - $b = (int)($cy * $m0 + $y * $m1); - - return ($r << 16) | ($g << 8) | $b; - } - - /** - * @param $image - * @param $x - * @param $y - * - * @return int - */ - protected function getCol($image, $x, $y) - { - $L = imagesx($image); - $H = imagesy($image); - if ($x < 0 || $x >= $L || $y < 0 || $y >= $H) { - return 0xFFFFFF; - } - - return imagecolorat($image, $x, $y); - } - - /** - * @param $col - * - * @return array - */ - protected function getRGB($col) - { - return array( - (int)($col >> 16) & 0xff, - (int)($col >> 8) & 0xff, - (int)($col) & 0xff, - ); - } -} - diff --git a/Generator/CaptchaGenerator.php b/Generator/CaptchaGenerator.php index 8b98328..653d62b 100644 --- a/Generator/CaptchaGenerator.php +++ b/Generator/CaptchaGenerator.php @@ -6,6 +6,9 @@ use Symfony\Component\Finder\Finder; use Symfony\Component\HttpFoundation\Session\SessionInterface; use Symfony\Component\Routing\RouterInterface; +use Gregwar\Captcha\CaptchaBuilderInterface; +use Gregwar\Captcha\PhraseBuilderInterface; + /** * Uses configuration parameters to call the services that generate captcha images * @@ -48,11 +51,11 @@ class CaptchaGenerator /** * @param \Symfony\Component\HttpFoundation\Session\SessionInterface $session * @param \Symfony\Component\Routing\RouterInterface $router - * @param CaptchaBuilder $builder - * @param ImageFileHandler $imageFileHandler + * @param CaptchaBuilderInterface $builder + * @param ImageFileHandlerInterface $imageFileHandler * @param string $whitelistKey */ - public function __construct(SessionInterface $session, RouterInterface $router, CaptchaBuilder $builder, PhraseBuilder $phraseBuilder, ImageFileHandler $imageFileHandler, $whitelistKey) + public function __construct(SessionInterface $session, RouterInterface $router, CaptchaBuilderInterface $builder, PhraseBuilderInterface $phraseBuilder, ImageFileHandler $imageFileHandler, $whitelistKey) { $this->session = $session; $this->router = $router; @@ -106,9 +109,8 @@ class CaptchaGenerator $options['width'], $options['height'], $options['font'], - $this->getPhrase($key, $options), $fingerprint - ); + )->getGd(); if ($options['keep_value']) { $this->session->set($key . '_fingerprint', $this->builder->getFingerprint()); @@ -139,6 +141,7 @@ class CaptchaGenerator $phrase = $this->phraseBuilder->build($options['length'], $options['charset']); $this->session->set($key, $phrase); + $this->captchaBuilder->setPhrase($phrase); return $phrase; } diff --git a/Generator/PhraseBuilder.php b/Generator/PhraseBuilder.php deleted file mode 100644 index e4728ba..0000000 --- a/Generator/PhraseBuilder.php +++ /dev/null @@ -1,23 +0,0 @@ - - */ -class PhraseBuilder -{ - public function build($length = 5, $charset = 'abcdefghijklmnopqrstuvwxyz0123456789') - { - $phrase = ''; - $chars = str_split($charset); - - for ($i = 0; $i < $length; $i++) { - $phrase .= $chars[array_rand($chars)]; - } - - return $phrase; - } -} diff --git a/Resources/config/services.yml b/Resources/config/services.yml index eced814..faa9af3 100755 --- a/Resources/config/services.yml +++ b/Resources/config/services.yml @@ -27,7 +27,7 @@ services: - %gregwar_captcha.config.expiration% gregwar_captcha.captcha_builder: - class: Gregwar\CaptchaBundle\Generator\CaptchaBuilder + class: Gregwar\Captcha\CaptchaBuilder gregwar_captcha.phrase_builder: - class: Gregwar\CaptchaBundle\Generator\PhraseBuilder + class: Gregwar\Captcha\PhraseBuilder diff --git a/composer.json b/composer.json index 32630fc..a1463c5 100644 --- a/composer.json +++ b/composer.json @@ -17,7 +17,8 @@ } ], "require": { - "php": ">=5.3.0" + "php": ">=5.3.0", + "gregwar/captcha": "dev-master" }, "autoload": { "psr-0": {