81 lines
3.4 KiB
PHP
81 lines
3.4 KiB
PHP
<?php
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require_once __DIR__ . '/../config.php';
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/**
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* 88x31 buttons shown in the footer.
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* To add one, just append a line: ['href' => 'https://...', 'src' => 'https://.../banner.png', 'alt' => 'name'].
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* The image is fetched + cached server-side, so nothing hotlinks the remote host on every visit.
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*/
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const BUTTONS_88x31 = [
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['href' => 'https://patate.dev', 'src' => 'https://patate.dev/images/patate_dev_banner.jpeg', 'alt' => 'patate.dev'],
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['href' => 'https://www.counter-strike.net/news/updates', 'src' => 'https://matdoes.dev/buttons/i/8678a5dfa58ce412f7d8f978b14e2f64.gif', 'alt' => 'https://blog.counter-strike.net/'],
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['href' => 'caddyserver.com', 'src' => 'https://caddyserver.com/resources/images/nostalgia/caddy.png', 'alt' => 'caddyserver.com'],
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['href' => '', 'src' => 'https://matdoes.dev/buttons/i/9025eae1851e8f32ff70f43f2c3393f0.png', 'alt' => 'ownpaws'],
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['href' => 'https://ssi.fyi/', 'src'=>'https://ssi.fyi/88x31.gif', 'alt'=>'https://ssi.fyi'],
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['href' => 'https://vmfunc.re/', 'src' => 'https://vmfunc.re/button.png', 'alt' => 'vmfunc.re'],
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['href' => 'https://m6.wtf', 'src' => 'https://m6.wtf/88x31.gif', 'alt' => 'm6.wtf'],
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['href' => 'https://0xa0.dev/', 'src' => '/img/0xa0.png', 'alt' => '0xA0.dev']
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];
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const BUTTON_CACHE_TTL = 7 * 86400; // re-fetch each button at most once a week
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/**
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* Fetch a remote image into the local cache (at most once a week) and return
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* the cache file's path, or null if it couldn't be fetched.
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*/
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function button_cache(string $url): ?string
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{
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$dir = DATA_DIR . '/buttons';
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@mkdir($dir, 0775, true);
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$file = $dir . '/' . md5($url); // stores "content-type\n<raw bytes>"
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if (!is_file($file) || (time() - filemtime($file)) > BUTTON_CACHE_TTL) {
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$ctx = stream_context_create(['http' => [
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'timeout' => 5,
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'user_agent' => 'Mozilla/5.0 (0xa0.dev button fetcher)',
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]]);
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$bytes = @file_get_contents($url, false, $ctx);
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if ($bytes !== false && $bytes !== '') {
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$type = 'image/png';
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foreach ($http_response_header ?? [] as $h) {
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if (stripos($h, 'content-type:') === 0) {
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$type = trim(substr($h, strlen('content-type:')));
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break;
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}
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}
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file_put_contents($file, $type . "\n" . $bytes);
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}
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}
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return is_file($file) ? $file : null;
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}
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/**
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* Where the page should load a button from: our own copy (button.php serves
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* it, versioned by the cache file's mtime so browsers can keep it), or the
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* original if fetching failed. Was inlined as base64 before, which made every
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* page ~260 KB heavier.
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*/
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function button_src(string $url): string
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{
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$file = button_cache($url);
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return $file ? '/button.php?h=' . basename($file) . '&v=' . filemtime($file) : $url;
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}
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/** Render the whole 88x31 button row as HTML. */
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function render_buttons_88x31(): string
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{
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$html = '';
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foreach (BUTTONS_88x31 as $b) {
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$uri = button_src($b['src']);
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$img = '<img src="' . htmlspecialchars($uri) . '" alt="' . htmlspecialchars($b['alt']) . '" width="88" height="31">';
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$href = $b['href'] ?? '';
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if ($href !== '') {
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$html .= '<a href="' . htmlspecialchars($href) . '" target="_blank" rel="noopener">' . $img . '</a>' . "\n";
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} else {
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$html .= $img . "\n"; // no href → just the image, not clickable
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}
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}
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return $html;
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}
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