diff options
Diffstat (limited to 'phpBB/includes/captcha/captcha_gd.php')
| -rw-r--r-- | phpBB/includes/captcha/captcha_gd.php | 73 |
1 files changed, 35 insertions, 38 deletions
diff --git a/phpBB/includes/captcha/captcha_gd.php b/phpBB/includes/captcha/captcha_gd.php index ecdad43978..e7c01c040a 100644 --- a/phpBB/includes/captcha/captcha_gd.php +++ b/phpBB/includes/captcha/captcha_gd.php @@ -2,9 +2,8 @@ /** * * @package VC -* @version $Id$ * @copyright (c) 2006 phpBB Group -* @license http://opensource.org/licenses/gpl-license.php GNU Public License +* @license http://opensource.org/licenses/gpl-2.0.php GNU General Public License v2 * */ @@ -27,14 +26,13 @@ class captcha var $width = 360; var $height = 96; - /** * Create the image containing $code with a seed of $seed */ function execute($code, $seed) { global $config; - + mt_srand($seed); // Create image @@ -70,7 +68,6 @@ class captcha $bounding_boxes[$i] = $box; } - // Redistribute leftover x-space $offset = array(); for ($i = 0; $i < $code_len; ++$i) @@ -100,12 +97,12 @@ class captcha imagedashedline($img, mt_rand($x -3, $x + 3), mt_rand(0, 4), mt_rand($x -3, $x + 3), mt_rand($this->height - 5, $this->height), $current_colour); } } + if ($config['captcha_gd_wave'] && ($config['captcha_gd_y_grid'] || $config['captcha_gd_y_grid'])) { $this->wave($img); } - - + if ($config['captcha_gd_3d_noise']) { $xoffset = mt_rand(0,9); @@ -123,11 +120,12 @@ class captcha $dimm = $bounding_boxes[$i]; $xoffset += ($offset[$i] - $dimm[0]); $yoffset = mt_rand(-$dimm[1], $this->height - $dimm[3]); - + $noise[$i]->drawchar($sizes[$i], $xoffset, $yoffset, $img, $colour->get_resource('background'), $scheme); $xoffset += $dimm[2]; } } + $xoffset = 5; for ($i = 0; $i < $code_len; ++$i) { @@ -138,14 +136,17 @@ class captcha $characters[$i]->drawchar($sizes[$i], $xoffset, $yoffset, $img, $colour->get_resource('background'), $scheme); $xoffset += $dimm[2]; } + if ($config['captcha_gd_wave']) { $this->wave($img); } + if ($config['captcha_gd_foreground_noise']) { $this->noise_line($img, 0, 0, $this->width, $this->height, $colour->get_resource('background'), $scheme, $bg_colours); } + // Send image header('Content-Type: image/png'); header('Cache-control: no-cache, no-store'); @@ -159,13 +160,13 @@ class captcha function wave($img) { global $config; - + $period_x = mt_rand(12,18); $period_y = mt_rand(7,14); $amp_x = mt_rand(5,10); - $amp_y = mt_rand(2,4); + $amp_y = mt_rand(2,4); $socket = mt_rand(0,100); - + $dampen_x = mt_rand($this->width/5, $this->width/2); $dampen_y = mt_rand($this->height/5, $this->height/2); $direction_x = (mt_rand (0, 1)); @@ -184,7 +185,7 @@ class captcha } return $img; } - + /** * Noise line */ @@ -234,9 +235,8 @@ class captcha imagesetthickness($img, 1); } - function captcha_noise_bg_bitmaps() - { + { return array( 'width' => 15, 'height' => 5, @@ -293,14 +293,14 @@ class captcha ), )); } - + /** * Return bitmaps */ function captcha_bitmaps() { global $config; - + $chars = array( 'A' => array( array( @@ -1681,7 +1681,7 @@ class captcha 'J' => $chars['J'][mt_rand(0, min(sizeof($chars['J']), $config['captcha_gd_fonts']) -1)], 'K' => $chars['K'][mt_rand(0, min(sizeof($chars['K']), $config['captcha_gd_fonts']) -1)], 'L' => $chars['L'][mt_rand(0, min(sizeof($chars['L']), $config['captcha_gd_fonts']) -1)], - 'M' => $chars['M'][mt_rand(0, min(sizeof($chars['M']), $config['captcha_gd_fonts']) -1)], + 'M' => $chars['M'][mt_rand(0, min(sizeof($chars['M']), $config['captcha_gd_fonts']) -1)], 'N' => $chars['N'][mt_rand(0, min(sizeof($chars['N']), $config['captcha_gd_fonts']) -1)], 'O' => $chars['O'][mt_rand(0, min(sizeof($chars['O']), $config['captcha_gd_fonts']) -1)], 'P' => $chars['P'][mt_rand(0, min(sizeof($chars['P']), $config['captcha_gd_fonts']) -1)], @@ -2196,7 +2196,7 @@ class colour_manager { $mode = $this->mode; } - + if (!is_array($colour)) { if (isset($this->named_rgb[$colour])) @@ -2226,8 +2226,8 @@ class colour_manager return $this->random_colour($colour, $mode); } - $rgb = colour_manager::model_convert($colour, $mode, 'rgb'); - $store = ($this->mode == 'rgb') ? $rgb : colour_manager::model_convert($colour, $mode, $this->mode); + $rgb = $this->model_convert($colour, $mode, 'rgb'); + $store = ($this->mode == 'rgb') ? $rgb : $this->model_convert($colour, $mode, $this->mode); $resource = imagecolorallocate($this->img, $rgb[0], $rgb[1], $rgb[2]); $this->colours[$resource] = $store; @@ -2345,14 +2345,13 @@ class colour_manager $resource = $pre; } - $colour = colour_manager::model_convert($this->colours[$resource], $this->mode, $mode); + $colour = $this->model_convert($this->colours[$resource], $this->mode, $mode); $results = ($include_original) ? array($resource) : array(); $colour2 = $colour3 = $colour4 = $colour; $colour2[0] += 150; $colour3[0] += 180; $colour4[0] += 210; - $results[] = $this->allocate($colour2, $mode); $results[] = $this->allocate($colour3, $mode); $results[] = $this->allocate($colour4, $mode); @@ -2380,7 +2379,7 @@ class colour_manager $resource = $pre; } - $colour = colour_manager::model_convert($this->colours[$resource], $this->mode, $mode); + $colour = $this->model_convert($this->colours[$resource], $this->mode, $mode); $results = array(); if ($include_original) @@ -2390,7 +2389,7 @@ class colour_manager } // This is a hard problem. I chicken out and try to maintain readability at the cost of less randomness. - + while ($count > 0) { $colour[1] = ($colour[1] + mt_rand(40,60)) % 99; @@ -2418,11 +2417,11 @@ class colour_manager switch ($from_model) { case 'ahsv': - return colour_manager::ah2h($colour); + return $this->ah2h($colour); break; case 'rgb': - return colour_manager::rgb2hsv($colour); + return $this->rgb2hsv($colour); break; } break; @@ -2432,11 +2431,11 @@ class colour_manager switch ($from_model) { case 'hsv': - return colour_manager::h2ah($colour); + return $this->h2ah($colour); break; case 'rgb': - return colour_manager::h2ah(colour_manager::rgb2hsv($colour)); + return $this->h2ah($this->rgb2hsv($colour)); break; } break; @@ -2445,11 +2444,11 @@ class colour_manager switch ($from_model) { case 'hsv': - return colour_manager::hsv2rgb($colour); + return $this->hsv2rgb($colour); break; case 'ahsv': - return colour_manager::hsv2rgb(colour_manager::ah2h($colour)); + return $this->hsv2rgb($this->ah2h($colour)); break; } break; @@ -2462,7 +2461,7 @@ class colour_manager */ function hsv2rgb($hsv) { - colour_manager::normalize_hue($hsv[0]); + $this->normalize_hue($hsv[0]); $h = $hsv[0]; $s = min(1, max(0, $hsv[1] / 100)); @@ -2554,7 +2553,7 @@ class colour_manager break; } } - colour_manager::normalize_hue($h); + $this->normalize_hue($h); return array($h, $s * 100, $v * 100); } @@ -2578,10 +2577,10 @@ class colour_manager { if (is_array($ahue)) { - $ahue[0] = colour_manager::ah2h($ahue[0]); + $ahue[0] = $this->ah2h($ahue[0]); return $ahue; } - colour_manager::normalize_hue($ahue); + $this->normalize_hue($ahue); // blue through red is already ok if ($ahue >= 240) @@ -2612,10 +2611,10 @@ class colour_manager { if (is_array($hue)) { - $hue[0] = colour_manager::h2ah($hue[0]); + $hue[0] = $this->h2ah($hue[0]); return $hue; } - colour_manager::normalize_hue($hue); + $this->normalize_hue($hue); // blue through red is already ok if ($hue >= 240) @@ -2636,5 +2635,3 @@ class colour_manager } } } - -?>
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