danwin1210/le-chat-php
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Add new captcha difficulty hard

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This commit is contained in:
Daniel Winzen
2023-12-10 09:58:51 +01:00
parent 32f3c23039
commit db7f1559c9
2 changed files with 420 additions and 372 deletions
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44
chat.php
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@ -660,6 +660,45 @@ function send_captcha(): void
imagesetpixel($im, mt_rand(0, 55), mt_rand(0, 24), $dots);
}
echo '<img alt="" width="55" height="24" src="data:image/gif;base64,';
}elseif($difficulty===3){
$im=imagecreatetruecolor(55, 24);
$bg=imagecolorallocatealpha($im, 0, 0, 0, 127);
$fg=imagecolorallocate($im, 255, 255, 255);
$cc=imagecolorallocate($im, 200, 200, 200);
$cb=imagecolorallocatealpha($im, 0, 0, 0, 127);
imagefill($im, 0, 0, $bg);
$line=imagecolorallocate($im, 255, 255, 255);
$deg=(mt_rand(0,1)*2-1)*mt_rand(10, 20);
$background=imagecreatetruecolor(120, 80);
imagefill($background, 0, 0, $cb);
for ($i=0; $i<20; $i++) {
$char=imagecreatetruecolor(12, 16);
imagestring($char, 5, 2, 2, $captchachars[mt_rand(0, $length)], $cc);
$char = imagerotate($char, (mt_rand(0,1)*2-1)*mt_rand(10, 20), $cb);
$char = imagescale($char, 24, 32);
imagefilter($char, IMG_FILTER_SMOOTH, 0.6);
imagecopy($background, $char, rand(0, 100), rand(0, 60), 0, 0, 24, 32);
}
imagestring($im, 5, 5, 5, $code, $fg);
$im = imagescale($im, 110, 48);
imagefilter($im, IMG_FILTER_SMOOTH, 0.5);
imagefilter($im, IMG_FILTER_GAUSSIAN_BLUR);
$im = imagerotate($im, $deg, $bg);
$im = imagecrop($im, array('x'=>0, 'y'=>0, 'width'=>120, 'height'=>80));
imagecopy($background, $im, 0, 0, 0, 0, 110, 80);
imagedestroy($im);
$im = $background;
for($i=0;$i<1000;++$i){
$c = mt_rand(100,230);
$dots=imagecolorallocate($im, $c, $c, $c);
imagesetpixel($im, mt_rand(0, 120), mt_rand(0, 80), $dots);
}
imagedestroy($char);
echo '<img width="120" height="80" src="data:image/png;base64,';
}else{
$im=imagecreatetruecolor(150, 200);
$bg=imagecolorallocate($im, 0, 0, 0);
@ -858,6 +897,11 @@ function send_setup(array $C): void
if($captcha===3){
echo ' selected';
}
echo '>'._('Hard').'</option>';
echo '<option value="4"';
if($captcha===4){
echo ' selected';
}
echo '>'._('Extreme').'</option>';
echo '</select></td></tr>';
}

748
locale/le-chat-php.pot
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