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| author | Henry Sudhof <kellanved@phpbb.com> | 2009-02-08 14:15:49 +0000 |
|---|---|---|
| committer | Henry Sudhof <kellanved@phpbb.com> | 2009-02-08 14:15:49 +0000 |
| commit | 6f486b0499258d1a236837acae120274bb1832d1 (patch) | |
| tree | 78aca5d7a4b321aee41032556b7208a9c40034f8 /phpBB/includes/captcha | |
| parent | 12c605755f933761e29b5c357298f9287b18e342 (diff) | |
| download | forums-6f486b0499258d1a236837acae120274bb1832d1.tar forums-6f486b0499258d1a236837acae120274bb1832d1.tar.gz forums-6f486b0499258d1a236837acae120274bb1832d1.tar.bz2 forums-6f486b0499258d1a236837acae120274bb1832d1.tar.xz forums-6f486b0499258d1a236837acae120274bb1832d1.zip | |
and another CAPTCHA setting - add new noise shapes to the noise array for more variations.
git-svn-id: file:///svn/phpbb/branches/phpBB-3_0_0@9320 89ea8834-ac86-4346-8a33-228a782c2dd0
Diffstat (limited to 'phpBB/includes/captcha')
| -rw-r--r-- | phpBB/includes/captcha/captcha_gd.php | 63 |
1 files changed, 62 insertions, 1 deletions
diff --git a/phpBB/includes/captcha/captcha_gd.php b/phpBB/includes/captcha/captcha_gd.php index 04a449bfde..9587e87b4f 100644 --- a/phpBB/includes/captcha/captcha_gd.php +++ b/phpBB/includes/captcha/captcha_gd.php @@ -53,11 +53,12 @@ class captcha $bg_colours = array_splice($scheme, mt_rand(6, 12)); // Generate code characters - $characters = $sizes = $bounding_boxes = array(); + $characters = $sizes = $bounding_boxes = $noise = array(); $width_avail = $this->width - 15; $code_len = strlen($code); $captcha_bitmaps = $this->captcha_bitmaps(); + $noise_bitmaps = $this->captcha_noise_bitmaps(); for ($i = 0; $i < $code_len; ++$i) { $characters[$i] = new char_cube3d($captcha_bitmaps, $code[$i]); @@ -70,6 +71,7 @@ class captcha $bounding_boxes[$i] = $box; } + // Redistribute leftover x-space $offset = array(); for ($i = 0; $i < $code_len; ++$i) @@ -110,6 +112,26 @@ class captcha $characters[$i]->drawchar($sizes[$i], $xoffset, $yoffset, $img, $colour->get_resource('background'), $scheme); $xoffset += $dimm[2]; } + if ($config['captcha_gd_3d_noise']) + { + for ($i = 0; $i < $code_len; ++$i) + { + $noise[$i] = new char_cube3d($noise_bitmaps, mt_rand(1, 1 + count($noise_bitmaps))); + + list($min, $max) = $noise[$i]->range(); + //$box = $noise[$i]->dimensions($sizes[$i]); + } + $xoffset = 0; + for ($i = 0; $i < $code_len; ++$i) + { + $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 += $dimm[2]; + } + } if ($config['captcha_gd_wave']) { $this->wave($img); @@ -206,6 +228,45 @@ class captcha imagesetthickness($img, 1); } + + function captcha_noise_bitmaps() + { + return array( + 'width' => 9, + 'height' => 5, + 'data' => array( + + 1 => array( + array(1,0,0,0,1,0,0,0,0), + array(1,0,0,0,0,1,0,0,0), + array(1,0,0,0,0,1,0,0,0), + array(1,0,0,0,0,1,0,0,0), + array(1,0,0,0,0,0,1,0,0), + ), + 2 => array( + array(1,1,1,1,1,1,1,1,1), + array(0,0,0,0,0,0,0,1,0), + array(0,0,0,0,0,0,0,0,0), + array(0,0,0,0,0,0,0,0,0), + array(0,0,0,0,0,0,0,0,0), + ), + 3 => array( + array(1,0,0,0,0,0,0,0,0), + array(1,0,0,0,0,0,0,0,0), + array(1,0,0,0,0,0,0,0,0), + array(1,0,0,0,0,0,0,0,0), + array(1,0,0,0,0,0,0,0,0), + ), + 4 => array( + array(1,0,1,0,1,0,0,1,1), + array(0,0,0,0,0,0,0,1,0), + array(1,0,1,0,1,0,1,0,0), + array(0,0,0,0,0,0,0,0,0), + array(1,0,1,0,1,0,1,0,0), + ), + )); + } + /** * Return bitmaps */ |