diff options
Diffstat (limited to 'system/libraries/drivers/Captcha')
-rw-r--r-- | system/libraries/drivers/Captcha/Alpha.php | 92 | ||||
-rw-r--r-- | system/libraries/drivers/Captcha/Basic.php | 81 | ||||
-rw-r--r-- | system/libraries/drivers/Captcha/Black.php | 72 | ||||
-rw-r--r-- | system/libraries/drivers/Captcha/Math.php | 61 | ||||
-rw-r--r-- | system/libraries/drivers/Captcha/Riddle.php | 47 | ||||
-rw-r--r-- | system/libraries/drivers/Captcha/Word.php | 37 |
6 files changed, 0 insertions, 390 deletions
diff --git a/system/libraries/drivers/Captcha/Alpha.php b/system/libraries/drivers/Captcha/Alpha.php deleted file mode 100644 index 27795804..00000000 --- a/system/libraries/drivers/Captcha/Alpha.php +++ /dev/null @@ -1,92 +0,0 @@ -<?php defined('SYSPATH') OR die('No direct access allowed.'); -/** - * Captcha driver for "alpha" style. - * - * $Id: Alpha.php 4367 2009-05-27 21:23:57Z samsoir $ - * - * @package Captcha - * @author Kohana Team - * @copyright (c) 2007-2008 Kohana Team - * @license http://kohanaphp.com/license.html - */ -class Captcha_Alpha_Driver extends Captcha_Driver { - - /** - * Generates a new Captcha challenge. - * - * @return string the challenge answer - */ - public function generate_challenge() - { - // Complexity setting is used as character count - return text::random('distinct', max(1, Captcha::$config['complexity'])); - } - - /** - * Outputs the Captcha image. - * - * @param boolean html output - * @return mixed - */ - public function render($html) - { - // Creates $this->image - $this->image_create(Captcha::$config['background']); - - // Add a random gradient - if (empty(Captcha::$config['background'])) - { - $color1 = imagecolorallocate($this->image, mt_rand(0, 100), mt_rand(0, 100), mt_rand(0, 100)); - $color2 = imagecolorallocate($this->image, mt_rand(0, 100), mt_rand(0, 100), mt_rand(0, 100)); - $this->image_gradient($color1, $color2); - } - - // Add a few random circles - for ($i = 0, $count = mt_rand(10, Captcha::$config['complexity'] * 3); $i < $count; $i++) - { - $color = imagecolorallocatealpha($this->image, mt_rand(0, 255), mt_rand(0, 255), mt_rand(0, 255), mt_rand(80, 120)); - $size = mt_rand(5, Captcha::$config['height'] / 3); - imagefilledellipse($this->image, mt_rand(0, Captcha::$config['width']), mt_rand(0, Captcha::$config['height']), $size, $size, $color); - } - - // Calculate character font-size and spacing - $default_size = min(Captcha::$config['width'], Captcha::$config['height'] * 2) / strlen($this->response); - $spacing = (int) (Captcha::$config['width'] * 0.9 / strlen($this->response)); - - // Background alphabetic character attributes - $color_limit = mt_rand(96, 160); - $chars = 'ABEFGJKLPQRTVY'; - - // Draw each Captcha character with varying attributes - for ($i = 0, $strlen = strlen($this->response); $i < $strlen; $i++) - { - // Use different fonts if available - $font = Captcha::$config['fontpath'].Captcha::$config['fonts'][array_rand(Captcha::$config['fonts'])]; - - $angle = mt_rand(-40, 20); - // Scale the character size on image height - $size = $default_size / 10 * mt_rand(8, 12); - $box = imageftbbox($size, $angle, $font, $this->response[$i]); - - // Calculate character starting coordinates - $x = $spacing / 4 + $i * $spacing; - $y = Captcha::$config['height'] / 2 + ($box[2] - $box[5]) / 4; - - // Draw captcha text character - // Allocate random color, size and rotation attributes to text - $color = imagecolorallocate($this->image, mt_rand(150, 255), mt_rand(200, 255), mt_rand(0, 255)); - - // Write text character to image - imagefttext($this->image, $size, $angle, $x, $y, $color, $font, $this->response[$i]); - - // Draw "ghost" alphabetic character - $text_color = imagecolorallocatealpha($this->image, mt_rand($color_limit + 8, 255), mt_rand($color_limit + 8, 255), mt_rand($color_limit + 8, 255), mt_rand(70, 120)); - $char = $chars[mt_rand(0, 14)]; - imagettftext($this->image, $size * 2, mt_rand(-45, 45), ($x - (mt_rand(5, 10))), ($y + (mt_rand(5, 10))), $text_color, $font, $char); - } - - // Output - return $this->image_render($html); - } - -} // End Captcha Alpha Driver Class
\ No newline at end of file diff --git a/system/libraries/drivers/Captcha/Basic.php b/system/libraries/drivers/Captcha/Basic.php deleted file mode 100644 index d212e72c..00000000 --- a/system/libraries/drivers/Captcha/Basic.php +++ /dev/null @@ -1,81 +0,0 @@ -<?php defined('SYSPATH') OR die('No direct access allowed.'); -/** - * Captcha driver for "basic" style. - * - * $Id: Basic.php 3769 2008-12-15 00:48:56Z zombor $ - * - * @package Captcha - * @author Kohana Team - * @copyright (c) 2007-2008 Kohana Team - * @license http://kohanaphp.com/license.html - */ -class Captcha_Basic_Driver extends Captcha_Driver { - - /** - * Generates a new Captcha challenge. - * - * @return string the challenge answer - */ - public function generate_challenge() - { - // Complexity setting is used as character count - return text::random('distinct', max(1, Captcha::$config['complexity'])); - } - - /** - * Outputs the Captcha image. - * - * @param boolean html output - * @return mixed - */ - public function render($html) - { - // Creates $this->image - $this->image_create(Captcha::$config['background']); - - // Add a random gradient - if (empty(Captcha::$config['background'])) - { - $color1 = imagecolorallocate($this->image, mt_rand(200, 255), mt_rand(200, 255), mt_rand(150, 255)); - $color2 = imagecolorallocate($this->image, mt_rand(200, 255), mt_rand(200, 255), mt_rand(150, 255)); - $this->image_gradient($color1, $color2); - } - - // Add a few random lines - for ($i = 0, $count = mt_rand(5, Captcha::$config['complexity'] * 4); $i < $count; $i++) - { - $color = imagecolorallocatealpha($this->image, mt_rand(0, 255), mt_rand(0, 255), mt_rand(100, 255), mt_rand(50, 120)); - imageline($this->image, mt_rand(0, Captcha::$config['width']), 0, mt_rand(0, Captcha::$config['width']), Captcha::$config['height'], $color); - } - - // Calculate character font-size and spacing - $default_size = min(Captcha::$config['width'], Captcha::$config['height'] * 2) / (strlen($this->response) + 1); - $spacing = (int) (Captcha::$config['width'] * 0.9 / strlen($this->response)); - - // Draw each Captcha character with varying attributes - for ($i = 0, $strlen = strlen($this->response); $i < $strlen; $i++) - { - // Use different fonts if available - $font = Captcha::$config['fontpath'].Captcha::$config['fonts'][array_rand(Captcha::$config['fonts'])]; - - // Allocate random color, size and rotation attributes to text - $color = imagecolorallocate($this->image, mt_rand(0, 150), mt_rand(0, 150), mt_rand(0, 150)); - $angle = mt_rand(-40, 20); - - // Scale the character size on image height - $size = $default_size / 10 * mt_rand(8, 12); - $box = imageftbbox($size, $angle, $font, $this->response[$i]); - - // Calculate character starting coordinates - $x = $spacing / 4 + $i * $spacing; - $y = Captcha::$config['height'] / 2 + ($box[2] - $box[5]) / 4; - - // Write text character to image - imagefttext($this->image, $size, $angle, $x, $y, $color, $font, $this->response[$i]); - } - - // Output - return $this->image_render($html); - } - -} // End Captcha Basic Driver Class
\ No newline at end of file diff --git a/system/libraries/drivers/Captcha/Black.php b/system/libraries/drivers/Captcha/Black.php deleted file mode 100644 index 6a2e2226..00000000 --- a/system/libraries/drivers/Captcha/Black.php +++ /dev/null @@ -1,72 +0,0 @@ -<?php defined('SYSPATH') OR die('No direct access allowed.'); -/** - * Captcha driver for "black" style. - * - * $Id: Black.php 3769 2008-12-15 00:48:56Z zombor $ - * - * @package Captcha - * @author Kohana Team - * @copyright (c) 2007-2008 Kohana Team - * @license http://kohanaphp.com/license.html - */ -class Captcha_Black_Driver extends Captcha_Driver { - - /** - * Generates a new Captcha challenge. - * - * @return string the challenge answer - */ - public function generate_challenge() - { - // Complexity setting is used as character count - return text::random('distinct', max(1, ceil(Captcha::$config['complexity'] / 1.5))); - } - - /** - * Outputs the Captcha image. - * - * @param boolean html output - * @return mixed - */ - public function render($html) - { - // Creates a black image to start from - $this->image_create(Captcha::$config['background']); - - // Add random white/gray arcs, amount depends on complexity setting - $count = (Captcha::$config['width'] + Captcha::$config['height']) / 2; - $count = $count / 5 * min(10, Captcha::$config['complexity']); - for ($i = 0; $i < $count; $i++) - { - imagesetthickness($this->image, mt_rand(1, 2)); - $color = imagecolorallocatealpha($this->image, 255, 255, 255, mt_rand(0, 120)); - imagearc($this->image, mt_rand(-Captcha::$config['width'], Captcha::$config['width']), mt_rand(-Captcha::$config['height'], Captcha::$config['height']), mt_rand(-Captcha::$config['width'], Captcha::$config['width']), mt_rand(-Captcha::$config['height'], Captcha::$config['height']), mt_rand(0, 360), mt_rand(0, 360), $color); - } - - // Use different fonts if available - $font = Captcha::$config['fontpath'].Captcha::$config['fonts'][array_rand(Captcha::$config['fonts'])]; - - // Draw the character's white shadows - $size = (int) min(Captcha::$config['height'] / 2, Captcha::$config['width'] * 0.8 / strlen($this->response)); - $angle = mt_rand(-15 + strlen($this->response), 15 - strlen($this->response)); - $x = mt_rand(1, Captcha::$config['width'] * 0.9 - $size * strlen($this->response)); - $y = ((Captcha::$config['height'] - $size) / 2) + $size; - $color = imagecolorallocate($this->image, 255, 255, 255); - imagefttext($this->image, $size, $angle, $x + 1, $y + 1, $color, $font, $this->response); - - // Add more shadows for lower complexities - (Captcha::$config['complexity'] < 10) and imagefttext($this->image, $size, $angle, $x - 1, $y - 1, $color, $font , $this->response); - (Captcha::$config['complexity'] < 8) and imagefttext($this->image, $size, $angle, $x - 2, $y + 2, $color, $font , $this->response); - (Captcha::$config['complexity'] < 6) and imagefttext($this->image, $size, $angle, $x + 2, $y - 2, $color, $font , $this->response); - (Captcha::$config['complexity'] < 4) and imagefttext($this->image, $size, $angle, $x + 3, $y + 3, $color, $font , $this->response); - (Captcha::$config['complexity'] < 2) and imagefttext($this->image, $size, $angle, $x - 3, $y - 3, $color, $font , $this->response); - - // Finally draw the foreground characters - $color = imagecolorallocate($this->image, 0, 0, 0); - imagefttext($this->image, $size, $angle, $x, $y, $color, $font, $this->response); - - // Output - return $this->image_render($html); - } - -} // End Captcha Black Driver Class
\ No newline at end of file diff --git a/system/libraries/drivers/Captcha/Math.php b/system/libraries/drivers/Captcha/Math.php deleted file mode 100644 index 4ac20248..00000000 --- a/system/libraries/drivers/Captcha/Math.php +++ /dev/null @@ -1,61 +0,0 @@ -<?php defined('SYSPATH') OR die('No direct access allowed.'); -/** - * Captcha driver for "math" style. - * - * $Id: Math.php 3769 2008-12-15 00:48:56Z zombor $ - * - * @package Captcha - * @author Kohana Team - * @copyright (c) 2007-2008 Kohana Team - * @license http://kohanaphp.com/license.html - */ -class Captcha_Math_Driver extends Captcha_Driver { - - private $math_exercice; - - /** - * Generates a new Captcha challenge. - * - * @return string the challenge answer - */ - public function generate_challenge() - { - // Easy - if (Captcha::$config['complexity'] < 4) - { - $numbers[] = mt_rand(1, 5); - $numbers[] = mt_rand(1, 4); - } - // Normal - elseif (Captcha::$config['complexity'] < 7) - { - $numbers[] = mt_rand(10, 20); - $numbers[] = mt_rand(1, 10); - } - // Difficult, well, not really ;) - else - { - $numbers[] = mt_rand(100, 200); - $numbers[] = mt_rand(10, 20); - $numbers[] = mt_rand(1, 10); - } - - // Store the question for output - $this->math_exercice = implode(' + ', $numbers).' = '; - - // Return the answer - return array_sum($numbers); - } - - /** - * Outputs the Captcha riddle. - * - * @param boolean html output - * @return mixed - */ - public function render($html) - { - return $this->math_exercice; - } - -} // End Captcha Math Driver Class
\ No newline at end of file diff --git a/system/libraries/drivers/Captcha/Riddle.php b/system/libraries/drivers/Captcha/Riddle.php deleted file mode 100644 index 765eeaad..00000000 --- a/system/libraries/drivers/Captcha/Riddle.php +++ /dev/null @@ -1,47 +0,0 @@ -<?php defined('SYSPATH') OR die('No direct access allowed.'); -/** - * Captcha driver for "riddle" style. - * - * $Id: Riddle.php 3769 2008-12-15 00:48:56Z zombor $ - * - * @package Captcha - * @author Kohana Team - * @copyright (c) 2007-2008 Kohana Team - * @license http://kohanaphp.com/license.html - */ -class Captcha_Riddle_Driver extends Captcha_Driver { - - private $riddle; - - /** - * Generates a new Captcha challenge. - * - * @return string the challenge answer - */ - public function generate_challenge() - { - // Load riddles from the current language - $riddles = Kohana::lang('captcha.riddles'); - - // Pick a random riddle - $riddle = $riddles[array_rand($riddles)]; - - // Store the question for output - $this->riddle = $riddle[0]; - - // Return the answer - return $riddle[1]; - } - - /** - * Outputs the Captcha riddle. - * - * @param boolean html output - * @return mixed - */ - public function render($html) - { - return $this->riddle; - } - -} // End Captcha Riddle Driver Class
\ No newline at end of file diff --git a/system/libraries/drivers/Captcha/Word.php b/system/libraries/drivers/Captcha/Word.php deleted file mode 100644 index 856bd9b4..00000000 --- a/system/libraries/drivers/Captcha/Word.php +++ /dev/null @@ -1,37 +0,0 @@ -<?php defined('SYSPATH') OR die('No direct access allowed.'); -/** - * Captcha driver for "word" style. - * - * $Id: Word.php 3769 2008-12-15 00:48:56Z zombor $ - * - * @package Captcha - * @author Kohana Team - * @copyright (c) 2007-2008 Kohana Team - * @license http://kohanaphp.com/license.html - */ -class Captcha_Word_Driver extends Captcha_Basic_Driver { - - /** - * Generates a new Captcha challenge. - * - * @return string the challenge answer - */ - public function generate_challenge() - { - // Load words from the current language and randomize them - $words = Kohana::lang('captcha.words'); - shuffle($words); - - // Loop over each word... - foreach ($words as $word) - { - // ...until we find one of the desired length - if (abs(Captcha::$config['complexity'] - strlen($word)) < 2) - return strtoupper($word); - } - - // Return any random word as final fallback - return strtoupper($words[array_rand($words)]); - } - -} // End Captcha Word Driver Class
\ No newline at end of file |