1.没置顶的消息，到最上面去了 2.无法转发图片 3.用户ID 是一串字母+数字 4.视频无法显示 5.消息无法置顶 6.可以引用文字，无法艾特用户 7.图片点开只能显示一半 8.转发不能多选，只能一个个转发 9.转发有转发提示，需取消

2026-10-11 00:26:07 +07:00
parent cf66f936e5
commit 1cabf661ca
29 changed files with 3906 additions and 1579 deletions
@@ -0,0 +1,71 @@
+<?php
+declare(strict_types=1);
+
+const WEB_MEDIA_STREAM_ROOT = '/opt/im-server/media';
+
+function failMediaStream(int $status, string $message): never
+{
+    http_response_code($status);
+    header('Content-Type: text/plain; charset=utf-8');
+    header('Cache-Control: no-store');
+    echo $message;
+    exit;
+}
+
+$url = trim((string)($_GET['url'] ?? ''));
+if ($url === '') {
+    failMediaStream(400, '缺少视频地址');
+}
+
+$path = rawurldecode((string)(parse_url($url, PHP_URL_PATH) ?: ''));
+if (!preg_match('#^/fs/[0-9]+/[A-Za-z0-9_./ -]+$#', $path) || str_contains($path, '..')) {
+    failMediaStream(400, '视频地址不合法');
+}
+
+$root = realpath(WEB_MEDIA_STREAM_ROOT);
+$fullPath = realpath(rtrim(WEB_MEDIA_STREAM_ROOT, '/') . $path);
+if ($root === false || $fullPath === false || !str_starts_with($fullPath, $root . DIRECTORY_SEPARATOR) || !is_file($fullPath)) {
+    failMediaStream(404, '视频文件不存在');
+}
+
+$size = (int)filesize($fullPath);
+$mime = (string)(mime_content_type($fullPath) ?: 'video/mp4');
+if (!str_starts_with($mime, 'video/')) {
+    $extension = strtolower((string)pathinfo($fullPath, PATHINFO_EXTENSION));
+    $mime = $extension === 'webm' ? 'video/webm' : ($extension === 'mov' ? 'video/quicktime' : 'video/mp4');
+}
+
+$start = 0;
+$end = max(0, $size - 1);
+$range = trim((string)($_SERVER['HTTP_RANGE'] ?? ''));
+if ($range !== '' && preg_match('/^bytes=(\d*)-(\d*)$/', $range, $matches)) {
+    if ($matches[1] !== '') $start = (int)$matches[1];
+    if ($matches[2] !== '') $end = min($end, (int)$matches[2]);
+    if ($start < 0 || $start > $end || $start >= $size) {
+        header('Content-Range: bytes */' . $size);
+        failMediaStream(416, '请求范围无效');
+    }
+    http_response_code(206);
+    header('Content-Range: bytes ' . $start . '-' . $end . '/' . $size);
+}
+
+$length = $end - $start + 1;
+header('Content-Type: ' . $mime);
+header('Content-Length: ' . $length);
+header('Accept-Ranges: bytes');
+header('Content-Disposition: inline');
+header('Cache-Control: public, max-age=86400');
+header('X-Content-Type-Options: nosniff');
+
+$stream = fopen($fullPath, 'rb');
+if ($stream === false) failMediaStream(500, '视频文件无法读取');
+fseek($stream, $start);
+$remaining = $length;
+while ($remaining > 0 && !feof($stream)) {
+    $chunk = fread($stream, min(1024 * 1024, $remaining));
+    if ($chunk === false || $chunk === '') break;
+    echo $chunk;
+    $remaining -= strlen($chunk);
+    flush();
+}
+fclose($stream);