57 lines
1.9 KiB
PHP
57 lines
1.9 KiB
PHP
<?php
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// 头像代理：转发 https://api.iyuns.com/api/head 并返回 { url }
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header('Content-Type: application/json; charset=utf-8');
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$endpoint = 'https://api.iyuns.com/api/head';
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function fetch_json($url) {
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$ch = curl_init($url);
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curl_setopt_array($ch, [
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CURLOPT_RETURNTRANSFER => true,
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CURLOPT_CONNECTTIMEOUT => 8,
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CURLOPT_TIMEOUT => 12,
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CURLOPT_SSL_VERIFYPEER => false,
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CURLOPT_SSL_VERIFYHOST => false,
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CURLOPT_USERAGENT => 'DiscussionProxy/1.0',
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]);
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$body = curl_exec($ch);
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$err = curl_error($ch);
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curl_close($ch);
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if ($err) { return null; }
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$json = json_decode($body, true);
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return is_array($json) ? $json : null;
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}
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$resp = fetch_json($endpoint);
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$url = '';
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if ($resp && ($resp['code'] ?? 0) == 200) {
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$url = preg_replace('/[`\s]/', '', (string)($resp['data'] ?? ''));
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}
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if (!$url) {
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// 远程失败时，回退到本地随机头像（遍历 avatars 下所有日期目录）
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$root = __DIR__ . '/../avatars';
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$candidates = [];
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if (is_dir($root)) {
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$rii = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($root));
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foreach ($rii as $file) {
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if ($file->isFile()) {
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$ext = strtolower(pathinfo($file->getFilename(), PATHINFO_EXTENSION));
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if (in_array($ext, ['jpg','jpeg','png','gif','webp'])) {
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$rel = str_replace('\\', '/', str_replace($_SERVER['DOCUMENT_ROOT'], '', $file->getPathname()));
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$candidates[] = $rel;
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}
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}
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}
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if (!empty($candidates)) {
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shuffle($candidates);
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$url = $candidates[0];
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}
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}
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// 如果本地也没有，则后备一个 Unsplash 头像
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if (!$url) {
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$url = 'https://images.unsplash.com/photo-1547425260-76bcadfb4f9b?w=200&h=200&fit=crop';
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}
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}
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echo json_encode(['url' => $url], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
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