danwin1210/onion-link-list
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Add captcha difficulty hard

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This commit is contained in:
Daniel Winzen
2023-12-10 10:56:51 +01:00
parent 4dcf1fcfd5
commit cea900b8e3
2 changed files with 40 additions and 1 deletions
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2
common_config.php
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@ -17,7 +17,7 @@ const VERSION = '1.1'; // Script version
const DBVERSION = 8; // Database layout version
const REQUIRE_APPROVAL = false; // require admin approval of new sites? true/false
const CANONICAL_URL = 'https://onions.danwin1210.de'; // our preferred domain for search engines
const CAPTCHA = 0; // Captcha difficulty (0=off, 1=simple, 2=moderate, 3=extreme)
const CAPTCHA = 0; // Captcha difficulty (0=off, 1=simple, 2=moderate, 3=hard, 4=extreme)
// Language selection
const LANGUAGES = [
'cs' => ['name' => 'čeština', 'locale' => 'cs_CZ', 'flag' => '🇨🇿', 'show_in_menu' => true, 'dir' => 'ltr'],

39
www/index.php
View File

@ -536,6 +536,45 @@ function send_captcha(): void
imagesetpixel($im, mt_rand(0, 55), mt_rand(0, 24), $dots);
}
echo ' <img width="55" height="24" alt="'._('captcha image').'" src="data:image/gif;base64,';
}elseif(CAPTCHA === 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);