mirror of
https://github.com/Neetpone/ponepaste.git
synced 2025-03-12 06:30:07 +01:00
122 lines
4.1 KiB
PHP
122 lines
4.1 KiB
PHP
<?php
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use JetBrains\PhpStorm\ArrayShape;
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#[ArrayShape(['code' => "mixed|string", 'image_src' => "string"])]
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function captcha($color, $mode, $mul, $allowed) : array {
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$bg_path = __DIR__ . '/../public/assets/img/captcha/';
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$font_path = __DIR__ . '/../public/assets/fonts/';
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if ($mul == "on") {
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$captcha_config = array(
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'code' => '',
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'min_length' => 5,
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'max_length' => 6,
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'backgrounds' => array(
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$bg_path . 'text3.png',
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$bg_path . 'text2.png',
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$bg_path . 'text1.png'
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),
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'fonts' => array(
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$font_path . 'LMS Pretty Pony.ttf',
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$font_path . 'PonyvilleMedium0.4.ttf',
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$font_path . 'PonyvilleMedium0.4.ttf'
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),
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'characters' => $allowed,
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'min_font_size' => 20,
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'max_font_size' => 28,
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'color' => $color,
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'angle_min' => 0,
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'angle_max' => 5,
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'shadow' => true,
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'shadow_color' => '#fff',
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'shadow_offset_x' => -2,
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'shadow_offset_y' => 4
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);
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} else {
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$captcha_config = array(
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'code' => '',
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'min_length' => 5,
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'max_length' => 5,
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'backgrounds' => array(
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$bg_path . 'text2.png'
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),
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'fonts' => array(
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$font_path . 'times_new_yorker.ttf'
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),
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'characters' => $allowed,
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'min_font_size' => 28,
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'max_font_size' => 28,
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'color' => $color,
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'angle_min' => 0,
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'angle_max' => 10,
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'shadow' => true,
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'shadow_color' => '#fff',
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'shadow_offset_x' => -1,
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'shadow_offset_y' => 1
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);
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}
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// Overwrite defaults with custom config values
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if (!empty($config) && is_array($config)) {
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foreach ($config as $key => $value)
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$captcha_config[$key] = $value;
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}
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// Restrict certain values
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if ($captcha_config['min_length'] < 1)
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$captcha_config['min_length'] = 1;
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if ($captcha_config['angle_min'] < 0)
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$captcha_config['angle_min'] = 0;
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if ($captcha_config['angle_max'] > 10)
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$captcha_config['angle_max'] = 10;
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if ($captcha_config['angle_max'] < $captcha_config['angle_min'])
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$captcha_config['angle_max'] = $captcha_config['angle_min'];
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if ($captcha_config['min_font_size'] < 10)
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$captcha_config['min_font_size'] = 10;
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if ($captcha_config['max_font_size'] < $captcha_config['min_font_size'])
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$captcha_config['max_font_size'] = $captcha_config['min_font_size'];
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// Generate CAPTCHA code if not set by user
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if (empty($captcha_config['code'])) {
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$captcha_config['code'] = '';
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$length = rand($captcha_config['min_length'], $captcha_config['max_length']);
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while (strlen($captcha_config['code']) < $length) {
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$captcha_config['code'] .= substr($captcha_config['characters'], rand() % (strlen($captcha_config['characters'])), 1);
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}
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}
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// Generate HTML for image src
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$image_src = '/captcha?_CAPTCHA&_R=' . urlencode(rand());
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$_SESSION['_CAPTCHA']['config'] = serialize($captcha_config);
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return [
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'code' => $captcha_config['code'],
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'image_src' => $image_src
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];
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}
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if (!function_exists('hex2rgb')) {
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function hex2rgb($hex_str) : array|null {
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$hex_str = preg_replace("/[^0-9A-Fa-f]/", '', $hex_str); // Gets a proper hex string
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if (strlen($hex_str) == 6) {
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$color_val = hexdec($hex_str);
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return [
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'r' => 0xFF & ($color_val >> 0x10),
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'g' => 0xFF & ($color_val >> 0x8),
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'b' => 0xFF & $color_val
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];
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} elseif (strlen($hex_str) == 3) {
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return [
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'r' => hexdec(str_repeat(substr($hex_str, 0, 1), 2)),
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'g' => hexdec(str_repeat(substr($hex_str, 1, 1), 2)),
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'b' => hexdec(str_repeat(substr($hex_str, 2, 1), 2))
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];
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}
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return null;
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}
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}
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