Revision 1693
Added by Dietmar almost 12 years ago
- fixed deprecated erigi in captcha
| calc_ttf_image.php | ||
|---|---|---|
| 27 | 27 |
require_once(WB_PATH.'/include/captcha/captcha.php'); |
| 28 | 28 |
|
| 29 | 29 |
if(!isset($_SESSION['captcha_time'])) |
| 30 |
exit; |
|
| 30 |
exit('missing captcha_time');
|
|
| 31 | 31 |
//unset($_SESSION['captcha_time']); // otherwise there can't be 2 captchas on one page! |
| 32 | 32 |
|
| 33 | 33 |
// get lists of fonts and backgrounds |
| ... | ... | |
| 36 | 36 |
$t_bgs = file_list(WB_PATH.'/include/captcha/backgrounds'); |
| 37 | 37 |
$fonts = array(); |
| 38 | 38 |
$bgs = array(); |
| 39 |
foreach($t_fonts as $file) if(eregi('\.ttf$',$file)) $fonts[]=$file;
|
|
| 40 |
foreach($t_bgs as $file) if(eregi('\.png$',$file)) $bgs[]=$file;
|
|
| 39 |
foreach($t_fonts as $file) { if(preg_match('/\.ttf/',$file)) { $fonts[]=$file; } }
|
|
| 40 |
foreach($t_bgs as $file) { if(preg_match('/\.png/',$file)) { $bgs[]=$file; } }
|
|
| 41 | 41 |
|
| 42 | 42 |
// Captcha |
| 43 | 43 |
$sec_id = ''; |
| ... | ... | |
| 50 | 50 |
$x = mt_rand(1,9); |
| 51 | 51 |
$y = mt_rand(1,9); |
| 52 | 52 |
$_SESSION['captcha'.$sec_id] = $x + $y; |
| 53 |
$cap = "$x+$y";
|
|
| 54 |
break;
|
|
| 53 |
$cap = "$x+$y"; |
|
| 54 |
break; |
|
| 55 | 55 |
case 2: |
| 56 | 56 |
$x = mt_rand(10,20); |
| 57 | 57 |
$y = mt_rand(1,9); |
| 58 |
$_SESSION['captcha'.$sec_id] = $x - $y;
|
|
| 59 |
$cap = "$x-$y";
|
|
| 58 |
$_SESSION['captcha'.$sec_id] = $x - $y; |
|
| 59 |
$cap = "$x-$y"; |
|
| 60 | 60 |
break; |
| 61 | 61 |
case 3: |
| 62 | 62 |
$x = mt_rand(2,10); |
| 63 | 63 |
$y = mt_rand(2,5); |
| 64 |
$_SESSION['captcha'.$sec_id] = $x * $y;
|
|
| 65 |
$cap = "$x*$y";
|
|
| 64 |
$_SESSION['captcha'.$sec_id] = $x * $y; |
|
| 65 |
$cap = "$x*$y"; |
|
| 66 | 66 |
break; |
| 67 | 67 |
} |
| 68 | 68 |
$text = $cap; |
| ... | ... | |
| 104 | 104 |
if(++$count > 4) // too many tries! Use the image |
| 105 | 105 |
break; |
| 106 | 106 |
} while($image_failed); |
| 107 |
|
|
| 107 |
|
|
| 108 | 108 |
} else {
|
| 109 |
|
|
| 109 |
|
|
| 110 | 110 |
// draw whole string at once |
| 111 | 111 |
$image_failed = true; |
| 112 | 112 |
$count=0; |
| ... | ... | |
| 121 | 121 |
$y = mt_rand($height-10,$height-2); |
| 122 | 122 |
$res = imagettftext($image, $ttfsize, $angle, $x, $y, $color, $ttf, $text); |
| 123 | 123 |
// check if text fits into the image |
| 124 |
if(($res[0]>0 && $res[0]<$width) && ($res[1]>0 && $res[1]<$height) &&
|
|
| 125 |
($res[2]>0 && $res[2]<$width) && ($res[3]>0 && $res[3]<$height) &&
|
|
| 126 |
($res[4]>0 && $res[4]<$width) && ($res[5]>0 && $res[5]<$height) &&
|
|
| 124 |
if(($res[0]>0 && $res[0]<$width) && ($res[1]>0 && $res[1]<$height) && |
|
| 125 |
($res[2]>0 && $res[2]<$width) && ($res[3]>0 && $res[3]<$height) && |
|
| 126 |
($res[4]>0 && $res[4]<$width) && ($res[5]>0 && $res[5]<$height) && |
|
| 127 | 127 |
($res[6]>0 && $res[6]<$width) && ($res[7]>0 && $res[7]<$height) |
| 128 | 128 |
) {
|
| 129 | 129 |
$image_failed = false; |
| ... | ... | |
| 131 | 131 |
if(++$count > 4) // too many tries! Use the image |
| 132 | 132 |
break; |
| 133 | 133 |
} while($image_failed); |
| 134 |
|
|
| 134 |
|
|
| 135 | 135 |
} |
| 136 | 136 |
|
| 137 | 137 |
imagealphablending($reload, TRUE); |
| ... | ... | |
| 145 | 145 |
captcha_header(); |
| 146 | 146 |
ob_start(); |
| 147 | 147 |
imagepng($image); |
| 148 |
header("Content-Length: ".ob_get_length());
|
|
| 148 |
header("Content-Length: ".ob_get_length());
|
|
| 149 | 149 |
ob_end_flush(); |
| 150 | 150 |
imagedestroy($image); |
| 151 |
|
|
| 152 |
?> |
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