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

dist-local/api/conversation_actions.php

@@ -425,12 +425,38 @@ function currentMuteSetting(PDO $appDb, string $groupId): array
     ];
 }
 
-function groupDetailAction(PDO $imDb, PDO $appDb, string $userId, string $groupId): array
-{
-    $group = fetchWebGroup($appDb, $groupId);
-    if (!$group) {
-        respond(404, '没有找到该群组');
-    }
+function groupDetailAction(PDO $imDb, PDO $appDb, string $userId, string $groupId): array
+{
+    $group = fetchWebGroup($appDb, $groupId);
+    if (!$group) {
+        $groupStatement = $imDb->prepare('select * from `t_group` where `_gid` = ? and `_deleted` = 0 limit 1');
+        $groupStatement->execute([$groupId]);
+        $nativeGroup = $groupStatement->fetch();
+        $memberStatement = $imDb->prepare('select `_type`, `_alias` from `t_group_member` where `_gid` = ? and `_mid` = ? limit 1');
+        $memberStatement->execute([$groupId, $userId]);
+        $nativeMember = $memberStatement->fetch();
+        if (!$nativeGroup || !$nativeMember) {
+            respond(403, '你不在该群组中');
+        }
+        $ownerStatement = $imDb->prepare('select `_mid` from `t_group_member` where `_gid` = ? and `_type` = 2 limit 1');
+        $ownerStatement->execute([$groupId]);
+        $ownerId = (string)($ownerStatement->fetchColumn() ?: '');
+        $users = fetchWebUserMap($imDb, array_filter([$ownerId, $userId]), $userId);
+        return ['group' => [
+            'groupId' => $groupId,
+            'publicId' => (string)($nativeGroup['id'] ?? ''),
+            'name' => (string)($nativeGroup['_name'] ?? $groupId),
+            'category' => 'group',
+            'announcement' => (string)($nativeGroup['_bulletin'] ?? ''),
+            'welcomeText' => '',
+            'ownerUid' => $ownerId,
+            'ownerName' => (string)($users[$ownerId]['displayName'] ?? $ownerId),
+            'myRole' => ((int)($nativeMember['_type'] ?? 0) === 2 ? 'owner' : ((int)($nativeMember['_type'] ?? 0) === 1 ? 'admin' : 'member')),
+            'myAlias' => (string)($nativeMember['_alias'] ?? ''),
+            'myDisplayName' => (string)($nativeMember['_alias'] ?? '') ?: (string)($users[$userId]['displayName'] ?? $userId),
+            'muteSetting' => ['enabled' => false, 'mode' => 'off'],
+        ]];
+    }
     $member = fetchWebGroupMember($appDb, $groupId, $userId);
     if (!$member) {
         respond(403, '你不在该群组中');
@@ -443,8 +469,9 @@ function groupDetailAction(PDO $imDb, PDO $appDb, string $userId, string $groupI
     $myAlias = (string)($member['alias'] ?? '');
 
     return [
-        'group' => [
-            'groupId' => (string)$group['group_id'],
+        'group' => [
+            'groupId' => (string)$group['group_id'],
+            'publicId' => (string)($group['id'] ?? ''),
             'name' => (string)$group['name'],
             'category' => (string)$group['category'],
             'announcement' => (string)($group['announcement'] ?? ''),
@@ -459,11 +486,42 @@ function groupDetailAction(PDO $imDb, PDO $appDb, string $userId, string $groupI
     ];
 }
 
-function groupMembersAction(PDO $imDb, PDO $appDb, string $userId, string $groupId): array
-{
-    if (!fetchWebGroupMember($appDb, $groupId, $userId)) {
-        respond(403, '你不在该群组中');
-    }
+function groupMembersAction(PDO $imDb, PDO $appDb, string $userId, string $groupId): array
+{
+    if (!fetchWebGroupMember($appDb, $groupId, $userId)) {
+        $membership = $imDb->prepare('select 1 from `t_group_member` where `_gid` = ? and `_mid` = ? limit 1');
+        $membership->execute([$groupId, $userId]);
+        if (!$membership->fetchColumn()) {
+            respond(403, '你不在该群组中');
+        }
+        $nativeStatement = $imDb->prepare(
+            'select `_mid` as `user_id`, `_type`, `_alias`, `_create_dt` from `t_group_member`'
+            . ' where `_gid` = ? order by (`_type` = 2) desc, `_create_dt` asc'
+        );
+        $nativeStatement->execute([$groupId]);
+        $nativeMembers = $nativeStatement->fetchAll();
+        $nativeUsers = fetchWebUserMap($imDb, array_column($nativeMembers, 'user_id'), $userId);
+        return ['members' => array_map(static function (array $member) use ($nativeUsers): array {
+            $uid = (string)$member['user_id'];
+            $user = $nativeUsers[$uid] ?? ['displayName' => $uid, 'mobile' => '', 'portrait' => '', 'isContact' => false];
+            $alias = trim((string)($member['_alias'] ?? ''));
+            $type = (int)($member['_type'] ?? 0);
+            return [
+                'uid' => $uid,
+                'role' => $type === 2 ? 'owner' : ($type === 1 ? 'admin' : 'member'),
+                'alias' => $alias,
+                'contactAlias' => trim((string)($user['contactAlias'] ?? '')),
+                'friendAlias' => trim((string)($user['friendAlias'] ?? '')),
+                'remarkAlias' => trim((string)($user['remarkAlias'] ?? '')),
+                'isContact' => (bool)($user['isContact'] ?? false),
+                'displayName' => trim((string)($user['contactAlias'] ?? '')) ?: ($alias ?: (string)$user['displayName']),
+                'rawDisplayName' => (string)$user['displayName'],
+                'groupDisplayName' => $alias,
+                'mobile' => (string)($user['mobile'] ?? ''),
+                'portrait' => (string)($user['portrait'] ?? ''),
+            ];
+        }, $nativeMembers)];
+    }
 
     $statement = $appDb->prepare(
         'select `user_id`, `role`, `alias`, `joined_at_ms` from `t_web_group_members`'

dist-local/api/media_proxy.php

@@ -6,6 +6,18 @@ require __DIR__ . '/im_web_bootstrap.php';
 const WEB_MEDIA_PROXY_MAX_BYTES = 15 * 1024 * 1024;
 const WEB_MEDIA_PROXY_MAX_SECONDS = 25;
 
+function mediaProxyEnv(string $name, string $default = ''): string
+{
+    if (function_exists('webImEnv')) {
+        return (string)webImEnv($name, $default);
+    }
+    $value = getenv($name);
+    if ($value === false || trim((string)$value) === '') {
+        return $default;
+    }
+    return trim((string)$value);
+}
+
 function failMediaProxy(int $status, string $message): never
 {
     http_response_code($status);
@@ -18,12 +30,13 @@ function failMediaProxy(int $status, string $message): never
 
 function mediaProxyAllowedHosts(): array
 {
-    $configured = webImEnv('JC_WEB_IM_MEDIA_PROXY_HOSTS');
+    $configured = mediaProxyEnv('JC_WEB_IM_MEDIA_PROXY_HOSTS');
     $hosts = array_map(
         static fn(string $host): string => strtolower(rtrim(trim($host), '.')),
         preg_split('/[,\s]+/', $configured) ?: []
     );
 
+    $hosts[] = 'zhiyanim.dfpnm.cn';
     return array_values(array_unique(array_filter($hosts)));
 }
 
@@ -53,9 +66,12 @@ function validatedMediaProxyUrl(string $url): array
 
 function mediaProxyCacheRoot(): string
 {
-    $root = rtrim(webImEnv('JC_WEB_IM_MEDIA_CACHE_ROOT', '/var/cache/jc-web-im-media'), '/');
+    $root = rtrim(mediaProxyEnv('JC_WEB_IM_MEDIA_CACHE_ROOT', '/var/cache/jc-web-im-media'), '/');
     if ($root === '' || !is_dir($root) || !is_writable($root)) {
-        failMediaProxy(503, '媒体缓存目录不可用');
+        $root = rtrim(sys_get_temp_dir(), '/') . '/jc-web-im-media';
+        if (!is_dir($root) && !@mkdir($root, 0755, true) && !is_dir($root)) {
+            failMediaProxy(503, '媒体缓存目录不可用');
+        }
     }
 
     return $root;
@@ -63,7 +79,7 @@ function mediaProxyCacheRoot(): string
 
 function mediaProxyPreferredIps(): array
 {
-    $configured = preg_split('/[,\s]+/', webImEnv('JC_WEB_IM_MEDIA_PROXY_IPS')) ?: [];
+    $configured = preg_split('/[,\s]+/', mediaProxyEnv('JC_WEB_IM_MEDIA_PROXY_IPS')) ?: [];
     $ips = [];
     foreach ($configured as $ip) {
         $ip = trim($ip);

dist-local/api/media_stream.php

@@ -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);

dist-local/api/message_action.php

@@ -78,7 +78,7 @@ function fetchActionMessageRow(string $messageUid): array
     return is_array($row) ? $row : [];
 }
 
-function ensureMessageEditsTable(): void
+function ensureMessageEditsTable(): void
 {
     imDb()->exec(
         'create table if not exists `t_web_message_edits` ('
@@ -93,7 +93,55 @@ function ensureMessageEditsTable(): void
         . 'key `idx_edited_at_ms` (`edited_at_ms`)'
         . ') engine=InnoDB default charset=utf8mb4'
     );
-}
+}
+
+function ensurePinnedMessagesTable(): void
+{
+    $db = imAppDb();
+    $db->exec(
+        'create table if not exists `t_web_pinned_messages` ('
+        . '`user_id` varchar(64) not null,'
+        . '`conversation_type` varchar(16) not null,'
+        . '`target_id` varchar(128) not null,'
+        . '`message_uid` varchar(32) not null,'
+        . '`message_json` text null,'
+        . '`updated_at_ms` bigint not null,'
+        . 'primary key (`user_id`, `conversation_type`, `target_id`)'
+        . ') engine=InnoDB default charset=utf8mb4'
+    );
+    try {
+        $db->exec('alter table `t_web_pinned_messages` add column `message_json` text null after `message_uid`');
+    } catch (Throwable) {
+        // The column already exists.
+    }
+}
+
+function savePinnedMessage(string $userId, string $conversationType, string $targetId, string $messageUid, array $message): void
+{
+    ensurePinnedMessagesTable();
+    $statement = imAppDb()->prepare(
+        'insert into `t_web_pinned_messages` (`user_id`, `conversation_type`, `target_id`, `message_uid`, `message_json`, `updated_at_ms`)'
+        . ' values (?, ?, ?, ?, ?, ?) on duplicate key update `message_uid` = values(`message_uid`),'
+        . ' `message_json` = values(`message_json`), `updated_at_ms` = values(`updated_at_ms`)'
+    );
+    $statement->execute([
+        $userId,
+        $conversationType,
+        $targetId,
+        $messageUid,
+        json_encode($message, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES),
+        nowTimestampMs(),
+    ]);
+}
+
+function removePinnedMessage(string $userId, string $conversationType, string $targetId): void
+{
+    ensurePinnedMessagesTable();
+    $statement = imAppDb()->prepare(
+        'delete from `t_web_pinned_messages` where `user_id` = ? and `conversation_type` = ? and `target_id` = ?'
+    );
+    $statement->execute([$userId, $conversationType, $targetId]);
+}
 
 function editTextMessage(string $operatorId, string $messageUid, string $text): array
 {
@@ -222,7 +270,22 @@ if ($action === '' || $messageUid <= 0) {
     respond(400, '缺少操作类型或消息ID');
 }
 
-try {
+try {
+    if ($action === 'pin' || $action === 'unpin') {
+        if ($userId === '') respond(400, '缺少操作者ID');
+        $targetId = trim((string)($payload['target'] ?? ''));
+        $conversationType = trim((string)($payload['conversationType'] ?? 'single'));
+        if ($targetId === '') respond(400, '缺少会话ID');
+        $userId = resolveActionUserId($userId);
+        if ($action === 'pin') {
+            $message = is_array($payload['message'] ?? null) ? $payload['message'] : [];
+            savePinnedMessage($userId, $conversationType, $targetId, $messageUidText, $message);
+        } else {
+            removePinnedMessage($userId, $conversationType, $targetId);
+        }
+        respond(0, 'success', ['messageUid' => $messageUidText, 'action' => $action]);
+    }
+
     if ($action === 'recall') {
         if ($userId === '') {
             respond(400, '缺少操作者ID');

dist-local/api/send_message.php

@@ -8,8 +8,9 @@ require __DIR__ . '/im_web_bootstrap.php';
 
 const WEB_MEDIA_ROOT = '/opt/im-server/media';
 const WEB_MEDIA_PUBLIC_PORT = 18000;
-const WEB_MEDIA_TYPE_IMAGE = 1;
-const WEB_MEDIA_TYPE_FILE = 4;
+const WEB_MEDIA_TYPE_IMAGE = 1;
+const WEB_MEDIA_TYPE_VIDEO = 3;
+const WEB_MEDIA_TYPE_FILE = 4;
 const WEB_IMAGE_MAX_BYTES = 10 * 1024 * 1024;
 const WEB_FILE_MAX_BYTES = 50 * 1024 * 1024;
 
@@ -245,13 +246,32 @@ function storeMessageAttachment(
     ]);
 }
 
-function attachmentFromRequest(string $messageType): ?array
-{
-    if (!in_array($messageType, ['image', 'file'], true)) {
-        return null;
-    }
-
-    $attachmentFile = $_FILES['attachment'] ?? $_FILES['file'] ?? null;
+function attachmentFromRequest(string $messageType): ?array
+{
+    if (!in_array($messageType, ['image', 'video', 'file'], true)) {
+        return null;
+    }
+
+    $forwardUrl = trim((string)($_POST['attachmentUrl'] ?? ''));
+    if ($forwardUrl !== '') {
+        $parts = parse_url($forwardUrl);
+        $scheme = strtolower((string)($parts['scheme'] ?? ''));
+        if (!in_array($scheme, ['http', 'https'], true) || empty($parts['host']) || strlen($forwardUrl) > 2048) {
+            respond(400, '媒体地址不合法');
+        }
+        $mime = trim((string)($_POST['attachmentMime'] ?? 'application/octet-stream'));
+        $name = safeUploadName((string)($_POST['attachmentName'] ?? ($messageType === 'image' ? '图片' : ($messageType === 'video' ? '视频.mp4' : '文件'))));
+        return [
+            'type' => $messageType,
+            'url' => $forwardUrl,
+            'name' => $name,
+            'mime' => $mime,
+            'size' => max(0, (int)($_POST['attachmentSize'] ?? 0)),
+            'mediaType' => $messageType === 'image' ? WEB_MEDIA_TYPE_IMAGE : ($messageType === 'video' ? WEB_MEDIA_TYPE_VIDEO : WEB_MEDIA_TYPE_FILE),
+        ];
+    }
+
+    $attachmentFile = $_FILES['attachment'] ?? $_FILES['file'] ?? null;
     if (!is_array($attachmentFile)) {
         respond(400, '缺少上传文件');
     }
@@ -266,11 +286,15 @@ $sender = messageRequestValue($payload, 'sender');
 $target = messageRequestValue($payload, 'target');
 $text = messageRequestValue($payload, 'text');
 $messageType = messageRequestValue($payload, 'messageType', 'text');
-$conversationType = $_POST['conversationType'] ?? $_POST['type'] ?? $payload['conversationType'] ?? $payload['type'] ?? 0;
-$isGroupConversation = in_array((string)$conversationType, ['1', 'group', 'channel'], true);
+$conversationType = $_POST['conversationType'] ?? $_POST['type'] ?? $payload['conversationType'] ?? $payload['type'] ?? 0;
+$isGroupConversation = in_array((string)$conversationType, ['1', 'group', 'channel'], true);
+$mentionedUserIds = $payload['mentionedUserIds'] ?? [];
+$mentionedUserIds = is_array($mentionedUserIds)
+    ? array_values(array_unique(array_filter(array_map(static fn($value): string => trim((string)$value), $mentionedUserIds))))
+    : [];
 $attachment = null;
 
-if ($sender === '' || $target === '' || ($text === '' && !in_array($messageType, ['image', 'file'], true))) {
+if ($sender === '' || $target === '' || ($text === '' && !in_array($messageType, ['image', 'video', 'file'], true))) {
     respond(400, '缺少发送者、接收者或消息内容');
 }
 
@@ -285,11 +309,70 @@ try {
             . ' where g.`deleted` = 0 and g.`group_id` = ? and m.`user_id` = ?'
             . ' limit 1'
         );
-        $memberStatement->execute([$target, $sender]);
-        $group = $memberStatement->fetch();
-        if (!$group) {
-            respond(403, '你不在该群组中');
-        }
+        $memberStatement->execute([$target, $sender]);
+        $group = $memberStatement->fetch();
+        if (!$group) {
+            // 手机端创建的原生群不一定存在于 Web 自建群表中，需回退检查 IM 群成员表。
+            $imDb = imDb();
+            $nativeGroupStatement = $imDb->prepare(
+                'select 1 from `t_group` where `_gid` = ? and `_deleted` = 0 limit 1'
+            );
+            $nativeGroupStatement->execute([$target]);
+            $nativeMemberStatement = $imDb->prepare(
+                'select `_type` from `t_group_member` where `_gid` = ? and `_mid` = ? limit 1'
+            );
+            $nativeMemberStatement->execute([$target, $sender]);
+            $nativeMemberType = $nativeMemberStatement->fetchColumn();
+            if (!$nativeGroupStatement->fetchColumn() || $nativeMemberType === false) {
+                respond(403, '你不在该群组中');
+            }
+
+            $attachment = attachmentFromRequest($messageType);
+            $pushContent = $text !== ''
+                ? $text
+                : ($attachment
+                    ? ((string)$attachment['type'] === 'image' ? '[图片]' : ((string)$attachment['type'] === 'video' ? '[视频]' : '[文件] ' . (string)$attachment['name']))
+                    : $text);
+            $payloadBody = [
+                'type' => $attachment ? ((string)$attachment['type'] === 'image' ? 3 : ((string)$attachment['type'] === 'video' ? 6 : 5)) : 1,
+                'searchableContent' => $pushContent,
+                'pushContent' => $pushContent,
+                'content' => $text,
+                'persistFlag' => 3,
+            ];
+            if ($mentionedUserIds) {
+                $payloadBody['mentionedType'] = 1;
+                $payloadBody['mentionedTarget'] = $mentionedUserIds;
+            }
+            if ($attachment) {
+                $payloadBody['mediaType'] = (int)$attachment['mediaType'];
+                $payloadBody['remoteMediaUrl'] = (string)$attachment['url'];
+                $payloadBody['extra'] = json_encode([
+                    'name' => (string)$attachment['name'],
+                    'mime' => (string)$attachment['mime'],
+                    'size' => (int)$attachment['size'],
+                ], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
+            }
+            $nativeResult = requireImSuccess(imAdminPost('/admin/message/send', [
+                'sender' => $sender,
+                'conv' => ['type' => 1, 'target' => $target, 'line' => 0],
+                'payload' => $payloadBody,
+                'userMessage' => true,
+            ]), '原生群消息发送失败');
+            $messageUid = isset($nativeResult['messageUid']) ? (string)$nativeResult['messageUid'] : '';
+            $timestamp = (int)($nativeResult['timestamp'] ?? webImNowMs());
+            if ($attachment && $messageUid !== '') {
+                storeMessageAttachment($appDb, $messageUid, 'group', $target, $sender, $attachment, $timestamp);
+            }
+            $role = (int)$nativeMemberType === 2 ? 'owner' : ((int)$nativeMemberType === 1 ? 'admin' : 'member');
+            respond(0, 'success', [
+                'messageUid' => $messageUid,
+                'timestamp' => $timestamp,
+                'senderRole' => $role,
+                'attachment' => $attachment,
+                'nativeError' => '',
+            ]);
+        }
         $category = (string)($group['category'] ?? 'group');
         $role = (string)($group['role'] ?? 'member');
         if ($category === 'channel' && !in_array($role, ['owner', 'admin'], true)) {
@@ -319,15 +402,19 @@ try {
             $pushContent = $text !== ''
                 ? $text
                 : ($attachment
-                    ? ((string)$attachment['type'] === 'image' ? '[图片]' : '[文件] ' . (string)$attachment['name'])
+                    ? ((string)$attachment['type'] === 'image' ? '[图片]' : ((string)$attachment['type'] === 'video' ? '[视频]' : '[文件] ' . (string)$attachment['name']))
                     : $text);
-            $payloadBody = [
-                'type' => $attachment ? ((string)$attachment['type'] === 'image' ? 3 : 5) : 1,
+            $payloadBody = [
+                'type' => $attachment ? ((string)$attachment['type'] === 'image' ? 3 : ((string)$attachment['type'] === 'video' ? 6 : 5)) : 1,
                 'searchableContent' => $pushContent,
                 'pushContent' => $pushContent,
                 'content' => $text,
-                'persistFlag' => 3,
-            ];
+                'persistFlag' => 3,
+            ];
+            if ($mentionedUserIds) {
+                $payloadBody['mentionedType'] = 1;
+                $payloadBody['mentionedTarget'] = $mentionedUserIds;
+            }
             if ($attachment) {
                 $payloadBody['mediaType'] = (int)$attachment['mediaType'];
                 $payloadBody['remoteMediaUrl'] = (string)$attachment['url'];
@@ -364,10 +451,10 @@ try {
     $pushContent = $text !== ''
         ? $text
         : ($attachment
-            ? ((string)$attachment['type'] === 'image' ? '[图片]' : '[文件] ' . (string)$attachment['name'])
+            ? ((string)$attachment['type'] === 'image' ? '[图片]' : ((string)$attachment['type'] === 'video' ? '[视频]' : '[文件] ' . (string)$attachment['name']))
             : $text);
     $payloadBody = [
-        'type' => $attachment ? ((string)$attachment['type'] === 'image' ? 3 : 5) : 1,
+        'type' => $attachment ? ((string)$attachment['type'] === 'image' ? 3 : ((string)$attachment['type'] === 'video' ? 6 : 5)) : 1,
         'searchableContent' => $pushContent,
         'pushContent' => $pushContent,
         'content' => $text,

dist/api/conversation_actions.php

@@ -425,12 +425,38 @@ function currentMuteSetting(PDO $appDb, string $groupId): array
     ];
 }
 
-function groupDetailAction(PDO $imDb, PDO $appDb, string $userId, string $groupId): array
-{
-    $group = fetchWebGroup($appDb, $groupId);
-    if (!$group) {
-        respond(404, '没有找到该群组');
-    }
+function groupDetailAction(PDO $imDb, PDO $appDb, string $userId, string $groupId): array
+{
+    $group = fetchWebGroup($appDb, $groupId);
+    if (!$group) {
+        $groupStatement = $imDb->prepare('select * from `t_group` where `_gid` = ? and `_deleted` = 0 limit 1');
+        $groupStatement->execute([$groupId]);
+        $nativeGroup = $groupStatement->fetch();
+        $memberStatement = $imDb->prepare('select `_type`, `_alias` from `t_group_member` where `_gid` = ? and `_mid` = ? limit 1');
+        $memberStatement->execute([$groupId, $userId]);
+        $nativeMember = $memberStatement->fetch();
+        if (!$nativeGroup || !$nativeMember) {
+            respond(403, '你不在该群组中');
+        }
+        $ownerStatement = $imDb->prepare('select `_mid` from `t_group_member` where `_gid` = ? and `_type` = 2 limit 1');
+        $ownerStatement->execute([$groupId]);
+        $ownerId = (string)($ownerStatement->fetchColumn() ?: '');
+        $users = fetchWebUserMap($imDb, array_filter([$ownerId, $userId]), $userId);
+        return ['group' => [
+            'groupId' => $groupId,
+            'publicId' => (string)($nativeGroup['id'] ?? ''),
+            'name' => (string)($nativeGroup['_name'] ?? $groupId),
+            'category' => 'group',
+            'announcement' => (string)($nativeGroup['_bulletin'] ?? ''),
+            'welcomeText' => '',
+            'ownerUid' => $ownerId,
+            'ownerName' => (string)($users[$ownerId]['displayName'] ?? $ownerId),
+            'myRole' => ((int)($nativeMember['_type'] ?? 0) === 2 ? 'owner' : ((int)($nativeMember['_type'] ?? 0) === 1 ? 'admin' : 'member')),
+            'myAlias' => (string)($nativeMember['_alias'] ?? ''),
+            'myDisplayName' => (string)($nativeMember['_alias'] ?? '') ?: (string)($users[$userId]['displayName'] ?? $userId),
+            'muteSetting' => ['enabled' => false, 'mode' => 'off'],
+        ]];
+    }
     $member = fetchWebGroupMember($appDb, $groupId, $userId);
     if (!$member) {
         respond(403, '你不在该群组中');
@@ -443,8 +469,9 @@ function groupDetailAction(PDO $imDb, PDO $appDb, string $userId, string $groupI
     $myAlias = (string)($member['alias'] ?? '');
 
     return [
-        'group' => [
-            'groupId' => (string)$group['group_id'],
+        'group' => [
+            'groupId' => (string)$group['group_id'],
+            'publicId' => (string)($group['id'] ?? ''),
             'name' => (string)$group['name'],
             'category' => (string)$group['category'],
             'announcement' => (string)($group['announcement'] ?? ''),
@@ -459,11 +486,42 @@ function groupDetailAction(PDO $imDb, PDO $appDb, string $userId, string $groupI
     ];
 }
 
-function groupMembersAction(PDO $imDb, PDO $appDb, string $userId, string $groupId): array
-{
-    if (!fetchWebGroupMember($appDb, $groupId, $userId)) {
-        respond(403, '你不在该群组中');
-    }
+function groupMembersAction(PDO $imDb, PDO $appDb, string $userId, string $groupId): array
+{
+    if (!fetchWebGroupMember($appDb, $groupId, $userId)) {
+        $membership = $imDb->prepare('select 1 from `t_group_member` where `_gid` = ? and `_mid` = ? limit 1');
+        $membership->execute([$groupId, $userId]);
+        if (!$membership->fetchColumn()) {
+            respond(403, '你不在该群组中');
+        }
+        $nativeStatement = $imDb->prepare(
+            'select `_mid` as `user_id`, `_type`, `_alias`, `_create_dt` from `t_group_member`'
+            . ' where `_gid` = ? order by (`_type` = 2) desc, `_create_dt` asc'
+        );
+        $nativeStatement->execute([$groupId]);
+        $nativeMembers = $nativeStatement->fetchAll();
+        $nativeUsers = fetchWebUserMap($imDb, array_column($nativeMembers, 'user_id'), $userId);
+        return ['members' => array_map(static function (array $member) use ($nativeUsers): array {
+            $uid = (string)$member['user_id'];
+            $user = $nativeUsers[$uid] ?? ['displayName' => $uid, 'mobile' => '', 'portrait' => '', 'isContact' => false];
+            $alias = trim((string)($member['_alias'] ?? ''));
+            $type = (int)($member['_type'] ?? 0);
+            return [
+                'uid' => $uid,
+                'role' => $type === 2 ? 'owner' : ($type === 1 ? 'admin' : 'member'),
+                'alias' => $alias,
+                'contactAlias' => trim((string)($user['contactAlias'] ?? '')),
+                'friendAlias' => trim((string)($user['friendAlias'] ?? '')),
+                'remarkAlias' => trim((string)($user['remarkAlias'] ?? '')),
+                'isContact' => (bool)($user['isContact'] ?? false),
+                'displayName' => trim((string)($user['contactAlias'] ?? '')) ?: ($alias ?: (string)$user['displayName']),
+                'rawDisplayName' => (string)$user['displayName'],
+                'groupDisplayName' => $alias,
+                'mobile' => (string)($user['mobile'] ?? ''),
+                'portrait' => (string)($user['portrait'] ?? ''),
+            ];
+        }, $nativeMembers)];
+    }
 
     $statement = $appDb->prepare(
         'select `user_id`, `role`, `alias`, `joined_at_ms` from `t_web_group_members`'

dist/api/media_stream.php

@@ -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);

dist/api/message_action.php

@@ -97,26 +97,41 @@ function ensureMessageEditsTable(): void
 
 function ensurePinnedMessagesTable(): void
 {
-    imAppDb()->exec(
+    $db = imAppDb();
+    $db->exec(
         'create table if not exists `t_web_pinned_messages` ('
         . '`user_id` varchar(64) not null,'
         . '`conversation_type` varchar(16) not null,'
         . '`target_id` varchar(128) not null,'
         . '`message_uid` varchar(32) not null,'
+        . '`message_json` text null,'
         . '`updated_at_ms` bigint not null,'
         . 'primary key (`user_id`, `conversation_type`, `target_id`)'
         . ') engine=InnoDB default charset=utf8mb4'
     );
+    try {
+        $db->exec('alter table `t_web_pinned_messages` add column `message_json` text null after `message_uid`');
+    } catch (Throwable) {
+        // The column already exists.
+    }
 }
 
-function savePinnedMessage(string $userId, string $conversationType, string $targetId, string $messageUid): void
+function savePinnedMessage(string $userId, string $conversationType, string $targetId, string $messageUid, array $message): void
 {
     ensurePinnedMessagesTable();
     $statement = imAppDb()->prepare(
-        'insert into `t_web_pinned_messages` (`user_id`, `conversation_type`, `target_id`, `message_uid`, `updated_at_ms`)'
-        . ' values (?, ?, ?, ?, ?) on duplicate key update `message_uid` = values(`message_uid`), `updated_at_ms` = values(`updated_at_ms`)'
+        'insert into `t_web_pinned_messages` (`user_id`, `conversation_type`, `target_id`, `message_uid`, `message_json`, `updated_at_ms`)'
+        . ' values (?, ?, ?, ?, ?, ?) on duplicate key update `message_uid` = values(`message_uid`),'
+        . ' `message_json` = values(`message_json`), `updated_at_ms` = values(`updated_at_ms`)'
     );
-    $statement->execute([$userId, $conversationType, $targetId, $messageUid, nowTimestampMs()]);
+    $statement->execute([
+        $userId,
+        $conversationType,
+        $targetId,
+        $messageUid,
+        json_encode($message, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES),
+        nowTimestampMs(),
+    ]);
 }
 
 function removePinnedMessage(string $userId, string $conversationType, string $targetId): void
@@ -263,7 +278,8 @@ try {
         if ($targetId === '') respond(400, '缺少会话ID');
         $userId = resolveActionUserId($userId);
         if ($action === 'pin') {
-            savePinnedMessage($userId, $conversationType, $targetId, $messageUidText);
+            $message = is_array($payload['message'] ?? null) ? $payload['message'] : [];
+            savePinnedMessage($userId, $conversationType, $targetId, $messageUidText, $message);
         } else {
             removePinnedMessage($userId, $conversationType, $targetId);
         }

dist/api/messages.php

@@ -597,6 +597,7 @@ function formatWebGroupMessage(
         'senderPortrait' => (string)($senderUser['_portrait'] ?? ''),
         'senderProfile' => [
             'uid' => $from,
+            'userId' => (string)($senderUser['_name'] ?? ''),
             'displayName' => $senderName,
             'rawName' => $senderRawName,
             'contactAlias' => $senderContactAlias,
@@ -964,6 +965,7 @@ function formatNativeGroupMessage(
         'senderPortrait' => (string)($senderUser['_portrait'] ?? ''),
         'senderProfile' => [
             'uid' => $from,
+            'userId' => (string)($senderUser['_name'] ?? ''),
             'displayName' => $senderName,
             'rawName' => $senderRawName,
             'contactAlias' => $senderContactAlias,
@@ -1064,7 +1066,7 @@ function loadNativeGroupMessages(PDO $db, string $userId, string $groupId, int $
     }
 
     $table = imUserMessagesTable($userId);
-    $scanLimit = min(max($limit * 4, $limit), 400);
+    $scanLimit = min(max($limit * 4, $limit), 5000);
     $statement = $db->prepare(
         'select `_mid`, `_dt` from `' . $table . '`'
         . ' where `_uid` = ? and `_type` = 1 and `_line` = 0 and `_target` = ?'
@@ -1624,16 +1626,26 @@ function messageSyncResult(
                 'create table if not exists `t_web_pinned_messages` ('
                 . '`user_id` varchar(64) not null, `conversation_type` varchar(16) not null,'
                 . '`target_id` varchar(128) not null, `message_uid` varchar(32) not null,'
+                . '`message_json` text null,'
                 . '`updated_at_ms` bigint not null, primary key (`user_id`, `conversation_type`, `target_id`)'
                 . ') engine=InnoDB default charset=utf8mb4'
             );
+            try {
+                imAppDb()->exec('alter table `t_web_pinned_messages` add column `message_json` text null after `message_uid`');
+            } catch (Throwable) {
+                // The column already exists.
+            }
             $statement = imAppDb()->prepare(
-                'select `message_uid` from `t_web_pinned_messages` where `user_id` = ? and `conversation_type` = ? and `target_id` = ? limit 1'
+                'select `message_uid`, `message_json` from `t_web_pinned_messages` where `user_id` = ? and `conversation_type` = ? and `target_id` = ? limit 1'
             );
             $statement->execute([$userId, $conversationType, $targetId]);
-            $result['pinnedMessageUid'] = (string)($statement->fetchColumn() ?: '');
+            $pinnedRow = $statement->fetch();
+            $result['pinnedMessageUid'] = (string)($pinnedRow['message_uid'] ?? '');
+            $pinnedMessage = json_decode((string)($pinnedRow['message_json'] ?? ''), true);
+            $result['pinnedMessage'] = is_array($pinnedMessage) ? $pinnedMessage : null;
         } catch (Throwable) {
             $result['pinnedMessageUid'] = '';
+            $result['pinnedMessage'] = null;
         }
     }
 
@@ -1643,7 +1655,7 @@ function messageSyncResult(
 $payload = readJsonPayload();
 $userId = trim((string)($payload['userId'] ?? ''));
 $target = trim((string)($payload['target'] ?? ''));
-$limit = clampLimit($payload['limit'] ?? 50, 50, 100);
+$limit = clampLimit($payload['limit'] ?? 1000, 50, 1000);
 $markRead = payloadBool($payload['markRead'] ?? false);
 $includeConversations = payloadBool($payload['includeConversations'] ?? false);
 $conversationType = normalizeConversationType($payload['conversationType'] ?? $payload['type'] ?? 0);

dist/api/send_message.php

@@ -8,8 +8,9 @@ require __DIR__ . '/im_web_bootstrap.php';
 
 const WEB_MEDIA_ROOT = '/opt/im-server/media';
 const WEB_MEDIA_PUBLIC_PORT = 18000;
-const WEB_MEDIA_TYPE_IMAGE = 1;
-const WEB_MEDIA_TYPE_FILE = 4;
+const WEB_MEDIA_TYPE_IMAGE = 1;
+const WEB_MEDIA_TYPE_VIDEO = 3;
+const WEB_MEDIA_TYPE_FILE = 4;
 const WEB_IMAGE_MAX_BYTES = 10 * 1024 * 1024;
 const WEB_FILE_MAX_BYTES = 50 * 1024 * 1024;
 
@@ -245,13 +246,32 @@ function storeMessageAttachment(
     ]);
 }
 
-function attachmentFromRequest(string $messageType): ?array
-{
-    if (!in_array($messageType, ['image', 'file'], true)) {
-        return null;
-    }
-
-    $attachmentFile = $_FILES['attachment'] ?? $_FILES['file'] ?? null;
+function attachmentFromRequest(string $messageType): ?array
+{
+    if (!in_array($messageType, ['image', 'video', 'file'], true)) {
+        return null;
+    }
+
+    $forwardUrl = trim((string)($_POST['attachmentUrl'] ?? ''));
+    if ($forwardUrl !== '') {
+        $parts = parse_url($forwardUrl);
+        $scheme = strtolower((string)($parts['scheme'] ?? ''));
+        if (!in_array($scheme, ['http', 'https'], true) || empty($parts['host']) || strlen($forwardUrl) > 2048) {
+            respond(400, '媒体地址不合法');
+        }
+        $mime = trim((string)($_POST['attachmentMime'] ?? 'application/octet-stream'));
+        $name = safeUploadName((string)($_POST['attachmentName'] ?? ($messageType === 'image' ? '图片' : ($messageType === 'video' ? '视频.mp4' : '文件'))));
+        return [
+            'type' => $messageType,
+            'url' => $forwardUrl,
+            'name' => $name,
+            'mime' => $mime,
+            'size' => max(0, (int)($_POST['attachmentSize'] ?? 0)),
+            'mediaType' => $messageType === 'image' ? WEB_MEDIA_TYPE_IMAGE : ($messageType === 'video' ? WEB_MEDIA_TYPE_VIDEO : WEB_MEDIA_TYPE_FILE),
+        ];
+    }
+
+    $attachmentFile = $_FILES['attachment'] ?? $_FILES['file'] ?? null;
     if (!is_array($attachmentFile)) {
         respond(400, '缺少上传文件');
     }
@@ -266,11 +286,15 @@ $sender = messageRequestValue($payload, 'sender');
 $target = messageRequestValue($payload, 'target');
 $text = messageRequestValue($payload, 'text');
 $messageType = messageRequestValue($payload, 'messageType', 'text');
-$conversationType = $_POST['conversationType'] ?? $_POST['type'] ?? $payload['conversationType'] ?? $payload['type'] ?? 0;
-$isGroupConversation = in_array((string)$conversationType, ['1', 'group', 'channel'], true);
+$conversationType = $_POST['conversationType'] ?? $_POST['type'] ?? $payload['conversationType'] ?? $payload['type'] ?? 0;
+$isGroupConversation = in_array((string)$conversationType, ['1', 'group', 'channel'], true);
+$mentionedUserIds = $payload['mentionedUserIds'] ?? [];
+$mentionedUserIds = is_array($mentionedUserIds)
+    ? array_values(array_unique(array_filter(array_map(static fn($value): string => trim((string)$value), $mentionedUserIds))))
+    : [];
 $attachment = null;
 
-if ($sender === '' || $target === '' || ($text === '' && !in_array($messageType, ['image', 'file'], true))) {
+if ($sender === '' || $target === '' || ($text === '' && !in_array($messageType, ['image', 'video', 'file'], true))) {
     respond(400, '缺少发送者、接收者或消息内容');
 }
 
@@ -285,11 +309,69 @@ try {
             . ' where g.`deleted` = 0 and g.`group_id` = ? and m.`user_id` = ?'
             . ' limit 1'
         );
-        $memberStatement->execute([$target, $sender]);
-        $group = $memberStatement->fetch();
-        if (!$group) {
-            respond(403, '你不在该群组中');
-        }
+        $memberStatement->execute([$target, $sender]);
+        $group = $memberStatement->fetch();
+        if (!$group) {
+            // 手机端创建的原生群不一定存在于 Web 自建群表中，需回退检查 IM 群成员表。
+            $imDb = imDb();
+            $nativeGroupStatement = $imDb->prepare(
+                'select 1 from `t_group` where `_gid` = ? and `_deleted` = 0 limit 1'
+            );
+            $nativeGroupStatement->execute([$target]);
+            $nativeMemberStatement = $imDb->prepare(
+                'select `_type` from `t_group_member` where `_gid` = ? and `_mid` = ? limit 1'
+            );
+            $nativeMemberStatement->execute([$target, $sender]);
+            $nativeMemberType = $nativeMemberStatement->fetchColumn();
+            if (!$nativeGroupStatement->fetchColumn() || $nativeMemberType === false) {
+                respond(403, '你不在该群组中');
+            }
+
+            $attachment = attachmentFromRequest($messageType);
+            $pushContent = $text !== ''
+                ? $text
+                : ($attachment
+                    ? ((string)$attachment['type'] === 'image' ? '[图片]' : ((string)$attachment['type'] === 'video' ? '[视频]' : '[文件] ' . (string)$attachment['name']))
+                    : $text);
+            $payloadBody = [
+                'type' => $attachment ? ((string)$attachment['type'] === 'image' ? 3 : ((string)$attachment['type'] === 'video' ? 6 : 5)) : 1,
+                'searchableContent' => $pushContent,
+                'pushContent' => $pushContent,
+                'content' => $text,
+                'persistFlag' => 3,
+            ];
+            if ($mentionedUserIds) {
+                $payloadBody['mentionedType'] = 1;
+                $payloadBody['mentionedTarget'] = $mentionedUserIds;
+            }
+            if ($attachment) {
+                $payloadBody['mediaType'] = (int)$attachment['mediaType'];
+                $payloadBody['remoteMediaUrl'] = (string)$attachment['url'];
+                $payloadBody['extra'] = json_encode([
+                    'name' => (string)$attachment['name'],
+                    'mime' => (string)$attachment['mime'],
+                    'size' => (int)$attachment['size'],
+                ], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
+            }
+            $nativeResult = requireImSuccess(imAdminPost('/admin/message/send', [
+                'sender' => $sender,
+                'conv' => ['type' => 1, 'target' => $target, 'line' => 0],
+                'payload' => $payloadBody,
+            ]), '原生群消息发送失败');
+            $messageUid = isset($nativeResult['messageUid']) ? (string)$nativeResult['messageUid'] : '';
+            $timestamp = (int)($nativeResult['timestamp'] ?? webImNowMs());
+            if ($attachment && $messageUid !== '') {
+                storeMessageAttachment($appDb, $messageUid, 'group', $target, $sender, $attachment, $timestamp);
+            }
+            $role = (int)$nativeMemberType === 2 ? 'owner' : ((int)$nativeMemberType === 1 ? 'admin' : 'member');
+            respond(0, 'success', [
+                'messageUid' => $messageUid,
+                'timestamp' => $timestamp,
+                'senderRole' => $role,
+                'attachment' => $attachment,
+                'nativeError' => '',
+            ]);
+        }
         $category = (string)($group['category'] ?? 'group');
         $role = (string)($group['role'] ?? 'member');
         if ($category === 'channel' && !in_array($role, ['owner', 'admin'], true)) {
@@ -319,15 +401,19 @@ try {
             $pushContent = $text !== ''
                 ? $text
                 : ($attachment
-                    ? ((string)$attachment['type'] === 'image' ? '[图片]' : '[文件] ' . (string)$attachment['name'])
+                    ? ((string)$attachment['type'] === 'image' ? '[图片]' : ((string)$attachment['type'] === 'video' ? '[视频]' : '[文件] ' . (string)$attachment['name']))
                     : $text);
-            $payloadBody = [
-                'type' => $attachment ? ((string)$attachment['type'] === 'image' ? 3 : 5) : 1,
+            $payloadBody = [
+                'type' => $attachment ? ((string)$attachment['type'] === 'image' ? 3 : ((string)$attachment['type'] === 'video' ? 6 : 5)) : 1,
                 'searchableContent' => $pushContent,
                 'pushContent' => $pushContent,
                 'content' => $text,
-                'persistFlag' => 3,
-            ];
+                'persistFlag' => 3,
+            ];
+            if ($mentionedUserIds) {
+                $payloadBody['mentionedType'] = 1;
+                $payloadBody['mentionedTarget'] = $mentionedUserIds;
+            }
             if ($attachment) {
                 $payloadBody['mediaType'] = (int)$attachment['mediaType'];
                 $payloadBody['remoteMediaUrl'] = (string)$attachment['url'];
@@ -344,8 +430,7 @@ try {
                     'target' => $target,
                     'line' => 0,
                 ],
-                'payload' => $payloadBody,
-                'userMessage' => true,
+                'payload' => $payloadBody,
             ]), '原生群消息发送失败');
         } catch (Throwable $error) {
             $nativeError = $error->getMessage() ?: '原生群消息发送失败';
@@ -364,10 +449,10 @@ try {
     $pushContent = $text !== ''
         ? $text
         : ($attachment
-            ? ((string)$attachment['type'] === 'image' ? '[图片]' : '[文件] ' . (string)$attachment['name'])
+            ? ((string)$attachment['type'] === 'image' ? '[图片]' : ((string)$attachment['type'] === 'video' ? '[视频]' : '[文件] ' . (string)$attachment['name']))
             : $text);
     $payloadBody = [
-        'type' => $attachment ? ((string)$attachment['type'] === 'image' ? 3 : 5) : 1,
+        'type' => $attachment ? ((string)$attachment['type'] === 'image' ? 3 : ((string)$attachment['type'] === 'video' ? 6 : 5)) : 1,
         'searchableContent' => $pushContent,
         'pushContent' => $pushContent,
         'content' => $text,
@@ -390,8 +475,7 @@ try {
             'target' => $target,
             'line' => 0,
         ],
-        'payload' => $payloadBody,
-        'userMessage' => true,
+        'payload' => $payloadBody,
     ]), '发送失败');
 
     $messageUid = isset($result['messageUid']) ? (string)$result['messageUid'] : '';

dist/css/app.0488f79e.css

@@ -2455,6 +2455,53 @@ button {
   background: #111;
 }
 
+.mention-picker {
+  position: absolute;
+  left: 18px;
+  bottom: 112px;
+  z-index: 20;
+  width: min(320px, calc(100% - 36px));
+  max-height: 260px;
+  overflow-y: auto;
+  padding: 6px;
+  border: 1px solid #d7e0e8;
+  border-radius: 10px;
+  background: #fff;
+  box-shadow: 0 12px 32px rgb(15 23 42 / 18%);
+}
+
+.mention-picker button {
+  display: flex;
+  width: 100%;
+  align-items: center;
+  gap: 10px;
+  padding: 8px 10px;
+  border: 0;
+  border-radius: 7px;
+  background: transparent;
+  text-align: left;
+}
+
+.mention-picker button:hover {
+  background: #eef7f5;
+}
+
+.mention-picker img,
+.mention-picker button > span {
+  width: 32px;
+  height: 32px;
+  border-radius: 7px;
+  -o-object-fit: cover;
+     object-fit: cover;
+}
+
+.mention-picker button > span {
+  display: grid;
+  place-items: center;
+  background: #dceaf3;
+  color: #23445c;
+}
+
 .red-packet-card {
   width: min(320px, 68vw);
   margin: -10px -12px -8px;

dist/index.html

@@ -1 +1 @@
-<!doctype html><html lang="zh-CN"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1"><title>Web IM</title><link rel="icon" href="favicon.ico"><script src="config/runtime-config.production.js"></script><script defer="defer" src="js/chunk-vendors.d3ec3fbc.js"></script><script defer="defer" src="js/app.1158390e.js"></script><link href="css/app.3ff3e457.css" rel="stylesheet"></head><body><noscript>请启用 JavaScript 后使用 Web IM。</noscript><div id="app"></div></body></html>
+<!doctype html><html lang="zh-CN"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1"><title>Web IM</title><link rel="icon" href="favicon.ico"><script src="config/runtime-config.production.js"></script><script defer="defer" src="js/chunk-vendors.d3ec3fbc.js"></script><script defer="defer" src="js/app.21e75967.js"></script><link href="css/app.0488f79e.css" rel="stylesheet"></head><body><noscript>请启用 JavaScript 后使用 Web IM。</noscript><div id="app"></div></body></html>

public/api/conversation_actions.php

@@ -425,12 +425,38 @@ function currentMuteSetting(PDO $appDb, string $groupId): array
     ];
 }
 
-function groupDetailAction(PDO $imDb, PDO $appDb, string $userId, string $groupId): array
-{
-    $group = fetchWebGroup($appDb, $groupId);
-    if (!$group) {
-        respond(404, '没有找到该群组');
-    }
+function groupDetailAction(PDO $imDb, PDO $appDb, string $userId, string $groupId): array
+{
+    $group = fetchWebGroup($appDb, $groupId);
+    if (!$group) {
+        $groupStatement = $imDb->prepare('select * from `t_group` where `_gid` = ? and `_deleted` = 0 limit 1');
+        $groupStatement->execute([$groupId]);
+        $nativeGroup = $groupStatement->fetch();
+        $memberStatement = $imDb->prepare('select `_type`, `_alias` from `t_group_member` where `_gid` = ? and `_mid` = ? limit 1');
+        $memberStatement->execute([$groupId, $userId]);
+        $nativeMember = $memberStatement->fetch();
+        if (!$nativeGroup || !$nativeMember) {
+            respond(403, '你不在该群组中');
+        }
+        $ownerStatement = $imDb->prepare('select `_mid` from `t_group_member` where `_gid` = ? and `_type` = 2 limit 1');
+        $ownerStatement->execute([$groupId]);
+        $ownerId = (string)($ownerStatement->fetchColumn() ?: '');
+        $users = fetchWebUserMap($imDb, array_filter([$ownerId, $userId]), $userId);
+        return ['group' => [
+            'groupId' => $groupId,
+            'publicId' => (string)($nativeGroup['id'] ?? ''),
+            'name' => (string)($nativeGroup['_name'] ?? $groupId),
+            'category' => 'group',
+            'announcement' => (string)($nativeGroup['_bulletin'] ?? ''),
+            'welcomeText' => '',
+            'ownerUid' => $ownerId,
+            'ownerName' => (string)($users[$ownerId]['displayName'] ?? $ownerId),
+            'myRole' => ((int)($nativeMember['_type'] ?? 0) === 2 ? 'owner' : ((int)($nativeMember['_type'] ?? 0) === 1 ? 'admin' : 'member')),
+            'myAlias' => (string)($nativeMember['_alias'] ?? ''),
+            'myDisplayName' => (string)($nativeMember['_alias'] ?? '') ?: (string)($users[$userId]['displayName'] ?? $userId),
+            'muteSetting' => ['enabled' => false, 'mode' => 'off'],
+        ]];
+    }
     $member = fetchWebGroupMember($appDb, $groupId, $userId);
     if (!$member) {
         respond(403, '你不在该群组中');
@@ -443,8 +469,9 @@ function groupDetailAction(PDO $imDb, PDO $appDb, string $userId, string $groupI
     $myAlias = (string)($member['alias'] ?? '');
 
     return [
-        'group' => [
-            'groupId' => (string)$group['group_id'],
+        'group' => [
+            'groupId' => (string)$group['group_id'],
+            'publicId' => (string)($group['id'] ?? ''),
             'name' => (string)$group['name'],
             'category' => (string)$group['category'],
             'announcement' => (string)($group['announcement'] ?? ''),
@@ -459,11 +486,42 @@ function groupDetailAction(PDO $imDb, PDO $appDb, string $userId, string $groupI
     ];
 }
 
-function groupMembersAction(PDO $imDb, PDO $appDb, string $userId, string $groupId): array
-{
-    if (!fetchWebGroupMember($appDb, $groupId, $userId)) {
-        respond(403, '你不在该群组中');
-    }
+function groupMembersAction(PDO $imDb, PDO $appDb, string $userId, string $groupId): array
+{
+    if (!fetchWebGroupMember($appDb, $groupId, $userId)) {
+        $membership = $imDb->prepare('select 1 from `t_group_member` where `_gid` = ? and `_mid` = ? limit 1');
+        $membership->execute([$groupId, $userId]);
+        if (!$membership->fetchColumn()) {
+            respond(403, '你不在该群组中');
+        }
+        $nativeStatement = $imDb->prepare(
+            'select `_mid` as `user_id`, `_type`, `_alias`, `_create_dt` from `t_group_member`'
+            . ' where `_gid` = ? order by (`_type` = 2) desc, `_create_dt` asc'
+        );
+        $nativeStatement->execute([$groupId]);
+        $nativeMembers = $nativeStatement->fetchAll();
+        $nativeUsers = fetchWebUserMap($imDb, array_column($nativeMembers, 'user_id'), $userId);
+        return ['members' => array_map(static function (array $member) use ($nativeUsers): array {
+            $uid = (string)$member['user_id'];
+            $user = $nativeUsers[$uid] ?? ['displayName' => $uid, 'mobile' => '', 'portrait' => '', 'isContact' => false];
+            $alias = trim((string)($member['_alias'] ?? ''));
+            $type = (int)($member['_type'] ?? 0);
+            return [
+                'uid' => $uid,
+                'role' => $type === 2 ? 'owner' : ($type === 1 ? 'admin' : 'member'),
+                'alias' => $alias,
+                'contactAlias' => trim((string)($user['contactAlias'] ?? '')),
+                'friendAlias' => trim((string)($user['friendAlias'] ?? '')),
+                'remarkAlias' => trim((string)($user['remarkAlias'] ?? '')),
+                'isContact' => (bool)($user['isContact'] ?? false),
+                'displayName' => trim((string)($user['contactAlias'] ?? '')) ?: ($alias ?: (string)$user['displayName']),
+                'rawDisplayName' => (string)$user['displayName'],
+                'groupDisplayName' => $alias,
+                'mobile' => (string)($user['mobile'] ?? ''),
+                'portrait' => (string)($user['portrait'] ?? ''),
+            ];
+        }, $nativeMembers)];
+    }
 
     $statement = $appDb->prepare(
         'select `user_id`, `role`, `alias`, `joined_at_ms` from `t_web_group_members`'

public/api/message_action.php

@@ -97,26 +97,41 @@ function ensureMessageEditsTable(): void
 
 function ensurePinnedMessagesTable(): void
 {
-    imAppDb()->exec(
+    $db = imAppDb();
+    $db->exec(
         'create table if not exists `t_web_pinned_messages` ('
         . '`user_id` varchar(64) not null,'
         . '`conversation_type` varchar(16) not null,'
         . '`target_id` varchar(128) not null,'
         . '`message_uid` varchar(32) not null,'
+        . '`message_json` text null,'
         . '`updated_at_ms` bigint not null,'
         . 'primary key (`user_id`, `conversation_type`, `target_id`)'
         . ') engine=InnoDB default charset=utf8mb4'
     );
+    try {
+        $db->exec('alter table `t_web_pinned_messages` add column `message_json` text null after `message_uid`');
+    } catch (Throwable) {
+        // The column already exists.
+    }
 }
 
-function savePinnedMessage(string $userId, string $conversationType, string $targetId, string $messageUid): void
+function savePinnedMessage(string $userId, string $conversationType, string $targetId, string $messageUid, array $message): void
 {
     ensurePinnedMessagesTable();
     $statement = imAppDb()->prepare(
-        'insert into `t_web_pinned_messages` (`user_id`, `conversation_type`, `target_id`, `message_uid`, `updated_at_ms`)'
-        . ' values (?, ?, ?, ?, ?) on duplicate key update `message_uid` = values(`message_uid`), `updated_at_ms` = values(`updated_at_ms`)'
+        'insert into `t_web_pinned_messages` (`user_id`, `conversation_type`, `target_id`, `message_uid`, `message_json`, `updated_at_ms`)'
+        . ' values (?, ?, ?, ?, ?, ?) on duplicate key update `message_uid` = values(`message_uid`),'
+        . ' `message_json` = values(`message_json`), `updated_at_ms` = values(`updated_at_ms`)'
     );
-    $statement->execute([$userId, $conversationType, $targetId, $messageUid, nowTimestampMs()]);
+    $statement->execute([
+        $userId,
+        $conversationType,
+        $targetId,
+        $messageUid,
+        json_encode($message, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES),
+        nowTimestampMs(),
+    ]);
 }
 
 function removePinnedMessage(string $userId, string $conversationType, string $targetId): void
@@ -263,7 +278,8 @@ try {
         if ($targetId === '') respond(400, '缺少会话ID');
         $userId = resolveActionUserId($userId);
         if ($action === 'pin') {
-            savePinnedMessage($userId, $conversationType, $targetId, $messageUidText);
+            $message = is_array($payload['message'] ?? null) ? $payload['message'] : [];
+            savePinnedMessage($userId, $conversationType, $targetId, $messageUidText, $message);
         } else {
             removePinnedMessage($userId, $conversationType, $targetId);
         }

public/api/messages.php

@@ -1066,7 +1066,7 @@ function loadNativeGroupMessages(PDO $db, string $userId, string $groupId, int $
     }
 
     $table = imUserMessagesTable($userId);
-    $scanLimit = min(max($limit * 4, $limit), 400);
+    $scanLimit = min(max($limit * 4, $limit), 5000);
     $statement = $db->prepare(
         'select `_mid`, `_dt` from `' . $table . '`'
         . ' where `_uid` = ? and `_type` = 1 and `_line` = 0 and `_target` = ?'
@@ -1626,16 +1626,26 @@ function messageSyncResult(
                 'create table if not exists `t_web_pinned_messages` ('
                 . '`user_id` varchar(64) not null, `conversation_type` varchar(16) not null,'
                 . '`target_id` varchar(128) not null, `message_uid` varchar(32) not null,'
+                . '`message_json` text null,'
                 . '`updated_at_ms` bigint not null, primary key (`user_id`, `conversation_type`, `target_id`)'
                 . ') engine=InnoDB default charset=utf8mb4'
             );
+            try {
+                imAppDb()->exec('alter table `t_web_pinned_messages` add column `message_json` text null after `message_uid`');
+            } catch (Throwable) {
+                // The column already exists.
+            }
             $statement = imAppDb()->prepare(
-                'select `message_uid` from `t_web_pinned_messages` where `user_id` = ? and `conversation_type` = ? and `target_id` = ? limit 1'
+                'select `message_uid`, `message_json` from `t_web_pinned_messages` where `user_id` = ? and `conversation_type` = ? and `target_id` = ? limit 1'
             );
             $statement->execute([$userId, $conversationType, $targetId]);
-            $result['pinnedMessageUid'] = (string)($statement->fetchColumn() ?: '');
+            $pinnedRow = $statement->fetch();
+            $result['pinnedMessageUid'] = (string)($pinnedRow['message_uid'] ?? '');
+            $pinnedMessage = json_decode((string)($pinnedRow['message_json'] ?? ''), true);
+            $result['pinnedMessage'] = is_array($pinnedMessage) ? $pinnedMessage : null;
         } catch (Throwable) {
             $result['pinnedMessageUid'] = '';
+            $result['pinnedMessage'] = null;
         }
     }
 
@@ -1645,7 +1655,7 @@ function messageSyncResult(
 $payload = readJsonPayload();
 $userId = trim((string)($payload['userId'] ?? ''));
 $target = trim((string)($payload['target'] ?? ''));
-$limit = clampLimit($payload['limit'] ?? 50, 50, 100);
+$limit = clampLimit($payload['limit'] ?? 1000, 50, 1000);
 $markRead = payloadBool($payload['markRead'] ?? false);
 $includeConversations = payloadBool($payload['includeConversations'] ?? false);
 $conversationType = normalizeConversationType($payload['conversationType'] ?? $payload['type'] ?? 0);

public/api/send_message.php

@@ -309,11 +309,69 @@ try {
             . ' where g.`deleted` = 0 and g.`group_id` = ? and m.`user_id` = ?'
             . ' limit 1'
         );
-        $memberStatement->execute([$target, $sender]);
-        $group = $memberStatement->fetch();
-        if (!$group) {
-            respond(403, '你不在该群组中');
-        }
+        $memberStatement->execute([$target, $sender]);
+        $group = $memberStatement->fetch();
+        if (!$group) {
+            // 手机端创建的原生群不一定存在于 Web 自建群表中，需回退检查 IM 群成员表。
+            $imDb = imDb();
+            $nativeGroupStatement = $imDb->prepare(
+                'select 1 from `t_group` where `_gid` = ? and `_deleted` = 0 limit 1'
+            );
+            $nativeGroupStatement->execute([$target]);
+            $nativeMemberStatement = $imDb->prepare(
+                'select `_type` from `t_group_member` where `_gid` = ? and `_mid` = ? limit 1'
+            );
+            $nativeMemberStatement->execute([$target, $sender]);
+            $nativeMemberType = $nativeMemberStatement->fetchColumn();
+            if (!$nativeGroupStatement->fetchColumn() || $nativeMemberType === false) {
+                respond(403, '你不在该群组中');
+            }
+
+            $attachment = attachmentFromRequest($messageType);
+            $pushContent = $text !== ''
+                ? $text
+                : ($attachment
+                    ? ((string)$attachment['type'] === 'image' ? '[图片]' : ((string)$attachment['type'] === 'video' ? '[视频]' : '[文件] ' . (string)$attachment['name']))
+                    : $text);
+            $payloadBody = [
+                'type' => $attachment ? ((string)$attachment['type'] === 'image' ? 3 : ((string)$attachment['type'] === 'video' ? 6 : 5)) : 1,
+                'searchableContent' => $pushContent,
+                'pushContent' => $pushContent,
+                'content' => $text,
+                'persistFlag' => 3,
+            ];
+            if ($mentionedUserIds) {
+                $payloadBody['mentionedType'] = 1;
+                $payloadBody['mentionedTarget'] = $mentionedUserIds;
+            }
+            if ($attachment) {
+                $payloadBody['mediaType'] = (int)$attachment['mediaType'];
+                $payloadBody['remoteMediaUrl'] = (string)$attachment['url'];
+                $payloadBody['extra'] = json_encode([
+                    'name' => (string)$attachment['name'],
+                    'mime' => (string)$attachment['mime'],
+                    'size' => (int)$attachment['size'],
+                ], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
+            }
+            $nativeResult = requireImSuccess(imAdminPost('/admin/message/send', [
+                'sender' => $sender,
+                'conv' => ['type' => 1, 'target' => $target, 'line' => 0],
+                'payload' => $payloadBody,
+            ]), '原生群消息发送失败');
+            $messageUid = isset($nativeResult['messageUid']) ? (string)$nativeResult['messageUid'] : '';
+            $timestamp = (int)($nativeResult['timestamp'] ?? webImNowMs());
+            if ($attachment && $messageUid !== '') {
+                storeMessageAttachment($appDb, $messageUid, 'group', $target, $sender, $attachment, $timestamp);
+            }
+            $role = (int)$nativeMemberType === 2 ? 'owner' : ((int)$nativeMemberType === 1 ? 'admin' : 'member');
+            respond(0, 'success', [
+                'messageUid' => $messageUid,
+                'timestamp' => $timestamp,
+                'senderRole' => $role,
+                'attachment' => $attachment,
+                'nativeError' => '',
+            ]);
+        }
         $category = (string)($group['category'] ?? 'group');
         $role = (string)($group['role'] ?? 'member');
         if ($category === 'channel' && !in_array($role, ['owner', 'admin'], true)) {
@@ -372,8 +430,7 @@ try {
                     'target' => $target,
                     'line' => 0,
                 ],
-                'payload' => $payloadBody,
-                'userMessage' => true,
+                'payload' => $payloadBody,
             ]), '原生群消息发送失败');
         } catch (Throwable $error) {
             $nativeError = $error->getMessage() ?: '原生群消息发送失败';
@@ -418,8 +475,7 @@ try {
             'target' => $target,
             'line' => 0,
         ],
-        'payload' => $payloadBody,
-        'userMessage' => true,
+        'payload' => $payloadBody,
     ]), '发送失败');
 
     $messageUid = isset($result['messageUid']) ? (string)$result['messageUid'] : '';

src/components/chat/ChatPanel.vue

@@ -86,7 +86,7 @@
     <MessageComposer
       :disabled="!activeConversation || !session.isAuthenticated || !conversations.canSendActiveConversation"
       :quote-message="conversations.quotedMessage"
-      :mention-users="isGroupConversation ? groupMembers : []"
+      :mention-users="isGroupConversation ? mentionCandidates : []"
       @cancel-quote="conversations.cancelQuote"
       @send="conversations.sendText"
       @send-attachment="conversations.sendAttachment"
@@ -295,7 +295,7 @@
             <dt>群名</dt>
             <dd>{{ groupDetail?.name || activeConversation?.title || '-' }}</dd>
           </div>
-          <div>
+          <div v-if="groupDisplayId">
             <dt>群ID</dt>
             <dd>{{ groupDisplayId }}</dd>
           </div>
@@ -619,14 +619,7 @@ const singleProfile = computed(() => {
   };
 });
 const groupDisplayId = computed(() => {
-  return String(
-    groupDetail.value?.groupId
-    || activeConversation.value?.raw?.groupId
-    || activeConversation.value?.raw?.target
-    || activeConversation.value?.target
-    || activeConversation.value?.id?.replace(/^group-/, '')
-    || '-'
-  );
+  return String(groupDetail.value?.publicId || '');
 });
 const isGroupConversation = computed(() => {
   return ['group', 'channel'].includes(activeConversation.value?.type)
@@ -637,8 +630,26 @@ const currentGroupRole = computed(() => {
 });
 const isGroupOwner = computed(() => currentGroupRole.value === 'owner');
 const canManageGroup = computed(() => ['owner', 'admin'].includes(currentGroupRole.value));
-const adminCandidateMembers = computed(() => groupMembers.value.filter(member => member.role !== 'owner'));
-const transferableMembers = computed(() => groupMembers.value.filter(member => member.role !== 'owner'));
+const adminCandidateMembers = computed(() => groupMembers.value.filter(member => member.role !== 'owner'));
+const transferableMembers = computed(() => groupMembers.value.filter(member => member.role !== 'owner'));
+const mentionCandidates = computed(() => {
+  const members = new Map();
+  groupMembers.value.forEach(member => {
+    const uid = String(member?.uid || '').trim();
+    if (uid && uid !== String(session.userId || '')) members.set(uid, member);
+  });
+  conversations.activeMessages.forEach(message => {
+    const uid = String(message?.from || '').trim();
+    if (!uid || uid === 'me' || uid === session.userId || members.has(uid)) return;
+    members.set(uid, {
+      uid,
+      displayName: message?.senderName || uid,
+      portrait: message?.senderPortrait || message?.portrait || '',
+      role: message?.senderRole || 'member'
+    });
+  });
+  return Array.from(members.values());
+});
 const messageDetail = computed(() => conversations.messageDetail || null);
 const messageDetailGroup = computed(() => messageDetail.value?.group || null);
 const isMessageDetailGroup = computed(() => {
@@ -795,19 +806,25 @@ function closeGroupPanel() {
   clearMuteSaveFeedback();
 }
 
-async function loadGroupDetail() {
+async function loadGroupDetail() {
   if (!session.userId || !activeConversation.value?.target) {
     return null;
   }
-  groupBusy.value = true;
-  try {
-    groupDetail.value = await imClient.getGroupDetail(session.userId, activeConversation.value.target);
+  const requestedConversationId = activeConversation.value.id;
+  const requestedTarget = activeConversation.value.target;
+  groupBusy.value = true;
+  try {
+    const detail = await imClient.getGroupDetail(session.userId, requestedTarget);
+    if (activeConversation.value?.id !== requestedConversationId) return null;
+    groupDetail.value = detail;
     return groupDetail.value;
   } catch (error) {
-    conversations.setActionError(error.message || '群资料加载失败');
+    if (activeConversation.value?.id === requestedConversationId) {
+      conversations.setActionError(error.message || '群资料加载失败');
+    }
     return null;
   } finally {
-    groupBusy.value = false;
+    if (activeConversation.value?.id === requestedConversationId) groupBusy.value = false;
   }
 }
 
@@ -826,19 +843,26 @@ async function openGroupMembers() {
   await loadGroupMembers();
 }
 
-async function loadGroupMembers() {
-  groupBusy.value = true;
-  try {
-    groupMembers.value = await imClient.getGroupMembers(session.userId, activeConversation.value.target);
+async function loadGroupMembers({ silent = false } = {}) {
+  const requestedConversationId = activeConversation.value?.id;
+  const requestedTarget = activeConversation.value?.target;
+  if (!session.userId || !requestedConversationId || !requestedTarget) return [];
+  groupBusy.value = true;
+  try {
+    const members = await imClient.getGroupMembers(session.userId, requestedTarget);
+    if (activeConversation.value?.id !== requestedConversationId) return [];
+    groupMembers.value = members;
     selectedAdminIds.value = groupMembers.value
       .filter(member => member.role === 'admin')
       .map(member => member.uid);
     return groupMembers.value;
-  } catch (error) {
-    conversations.setActionError(error.message || '群员加载失败');
+  } catch (error) {
+    if (!silent && activeConversation.value?.id === requestedConversationId) {
+      conversations.setActionError(error.message || '群员加载失败');
+    }
     return [];
   } finally {
-    groupBusy.value = false;
+    if (activeConversation.value?.id === requestedConversationId) groupBusy.value = false;
   }
 }
 
@@ -1113,7 +1137,9 @@ onBeforeUnmount(() => {
 watch(
   () => activeConversation.value?.id,
   async () => {
-    closeGroupMenu();
+    conversations.actionError = '';
+    conversations.actionNotice = '';
+    closeGroupMenu();
     closeSingleProfile();
     closeGroupPanel();
     groupDetail.value = null;
@@ -1124,7 +1150,7 @@ watch(
     transferTargetId.value = '';
     manageSection.value = '';
     if (isGroupConversation.value) {
-      await loadGroupMembers();
+      await loadGroupMembers({ silent: true });
     }
   }
 , { immediate: true });

src/components/chat/MessageComposer.vue

@@ -17,8 +17,9 @@
       <button type="button" title="取消引用" @click="$emit('cancel-quote')">×</button>
     </div>
     <div class="composer-tools">
-      <button type="button" title="表情" :disabled="disabled" @click="toggleEmojiPicker">☺</button>
-      <button type="button" title="图片" :disabled="disabled" @click="chooseImage">▧</button>
+      <button type="button" title="表情" :disabled="disabled" @click="toggleEmojiPicker">☺</button>
+      <button type="button" title="艾特群成员" :disabled="disabled || !mentionUsers.length" @click="openMentionPicker">@</button>
+      <button type="button" title="图片" :disabled="disabled" @click="chooseImage">▧</button>
       <button type="button" title="文件" :disabled="disabled" @click="chooseFile">▤</button>
       <input ref="imageInput" type="file" accept="image/*" multiple @change="selectAttachment($event, 'image')">
       <input ref="fileInput" type="file" multiple @change="selectAttachment($event, 'file')">
@@ -123,12 +124,27 @@ function mentionName(member) {
 function handleMentionInput(event) {
   const cursor = event?.target?.selectionStart ?? text.value.length;
   const beforeCursor = text.value.slice(0, cursor);
-  const match = beforeCursor.match(/(?:^|\s)@([^\s@]*)$/);
+  const match = beforeCursor.match(/@([^\s@]*)$/);
   mentionOpen.value = Boolean(match && props.mentionUsers.length);
   mentionQuery.value = match?.[1] || '';
   mentionStart.value = match ? cursor - match[1].length - 1 : -1;
 }
 
+function openMentionPicker() {
+  if (!props.mentionUsers.length) return;
+  const element = textareaEl.value;
+  const start = element?.selectionStart ?? text.value.length;
+  const end = element?.selectionEnd ?? start;
+  text.value = `${text.value.slice(0, start)}@${text.value.slice(end)}`;
+  mentionStart.value = start;
+  mentionQuery.value = '';
+  mentionOpen.value = true;
+  nextTick(() => {
+    element?.focus();
+    element?.setSelectionRange(start + 1, start + 1);
+  });
+}
+
 function selectMention(member) {
   const element = textareaEl.value;
   const cursor = element?.selectionStart ?? text.value.length;

src/components/chat/MessageList.vue

@@ -67,12 +67,12 @@
           <video
             v-else-if="isVideoMessage(message)"
             class="message-video"
+            :src="videoDisplayUrl(message.attachment.url)"
             controls
             playsinline
             preload="metadata"
+            @error="useVideoOriginalFallback($event, message.attachment.url)"
           >
-            <source :src="videoDisplayUrl(message.attachment.url)" :type="message.attachment.mime || 'video/mp4'">
-            <source :src="message.attachment.url" :type="message.attachment.mime || 'video/mp4'">
             当前浏览器无法播放该视频
           </video>
           <a
@@ -85,11 +85,11 @@
           >
             <span class="message-file-icon">▤</span>
             <span class="message-file-main">
-              <strong>{{ message.attachment.name || '文件' }}</strong>
-              <small>{{ formatFileSize(message.attachment.size) }}</small>
-            </span>
-          </a>
-          <p v-if="message.text && !isRedPacketMessage(message) && !isRedPacketReceipt(message)">{{ message.text }}</p>
+              <strong>{{ displayFileName(message) }}</strong>
+              <small>{{ formatFileSize(message.attachment.size) }}</small>
+            </span>
+          </a>
+          <p v-if="message.text && !isFileMessage(message) && !isRedPacketMessage(message) && !isRedPacketReceipt(message)">{{ message.text }}</p>
           <time>
             <span v-if="isRecallNotice(message)" class="recall-mark">{{ message.recallStatus || '已撤回' }}</span>
             <span>{{ formatTime(message.displayTimestamp || message.timestamp) }}</span>
@@ -248,7 +248,7 @@
 <script setup>
 import { computed, nextTick, onBeforeUnmount, onMounted, reactive, ref, watch } from 'vue';
 import { useContactStore } from '@/stores/contacts';
-import { useImageProxyFallback, videoDisplayUrl } from '@/services/mediaProxy';
+import { useImageProxyFallback, useVideoOriginalFallback, videoDisplayUrl } from '@/services/mediaProxy';
 import { useAutoDismiss } from '@/composables/useAutoDismiss';
 
 const props = defineProps({
@@ -463,6 +463,12 @@ function isFileMessage(message) {
   return message?.type === 'file' && message?.attachment?.url;
 }
 
+function displayFileName(message) {
+  const text = String(message?.text || '').trim();
+  const attachmentName = String(message?.attachment?.name || '').trim();
+  return text || attachmentName || '文件';
+}
+
 function isVideoMessage(message) {
   return (message?.type === 'video' || Number(message?.contentType || 0) === 6) && message?.attachment?.url;
 }

src/services/httpImClient.js

@@ -156,7 +156,13 @@ function mergeSyncedMessages(localMessages, remoteMessages, conversationId, user
     if (message.status === 'sent') {
       return !hasRemoteMatch(message) && now - Number(message.timestamp || 0) < 30000;
     }
-    return message.status === 'sending' || message.status === 'failed';
+    if (message.status === 'failed') {
+      // Failed optimistic messages are only transient feedback. Keeping them in
+      // localStorage forever makes an old server error reappear every time the
+      // conversation is opened, even after later messages send successfully.
+      return now - Number(message.timestamp || 0) < 3000;
+    }
+    return message.status === 'sending';
   });
 
   return [...visibleRemoteMessages, ...pendingLocalMessages].sort((a, b) => {
@@ -395,7 +401,9 @@ export class HttpImClient {
       displayTimestamp: message.displayTimestamp || message.timestamp,
       conversationId: conversation.id
     }));
+    messages.hasPinnedMessageState = Object.prototype.hasOwnProperty.call(response.data?.result || {}, 'pinnedMessageUid');
     messages.pinnedMessageUid = String(response.data?.result?.pinnedMessageUid || '');
+    messages.pinnedMessage = response.data?.result?.pinnedMessage || null;
     if (options.includeConversations && Array.isArray(response.data?.result?.conversations)) {
       const remoteConversations = response.data.result.conversations.map(remoteConversation => ({
         ...remoteConversation,
@@ -409,21 +417,113 @@ export class HttpImClient {
     const messagesByConversation = readLocalMessages(userId);
     messagesByConversation[conversation.id] = mergeSyncedMessages(messagesByConversation[conversation.id] || [], messages, conversation.id, userId);
     messagesByConversation[conversation.id].pinnedMessageUid = messages.pinnedMessageUid;
+    messagesByConversation[conversation.id].pinnedMessage = messages.pinnedMessage;
+    messagesByConversation[conversation.id].hasPinnedMessageState = messages.hasPinnedMessageState;
     writeLocalMessages(messagesByConversation, userId);
     return messagesByConversation[conversation.id];
   }
 
-  async setPinnedMessage(conversation, messageUid = '') {
+  async setPinnedMessage(conversation, messageUid = '', message = null) {
+    const isGroup = ['group', 'channel'].includes(conversation?.type)
+      || ['group', 'channel', 1, '1'].includes(conversation?.raw?.type);
+    if (isGroup) {
+      if (messageUid && message) {
+        return this.addGroupPinnedMessage(conversation, message);
+      }
+      const serverPinId = String(message?.serverPinId || message?.pinId || '').trim();
+      if (!serverPinId) {
+        throw new Error('缺少置顶记录ID，请刷新会话后重试');
+      }
+      return this.removeGroupPinnedMessage(serverPinId);
+    }
     const action = messageUid ? 'pin' : 'unpin';
     const response = await axios.post(appConfig.messageActionApi, {
       action,
       userId: this.currentUser?.userId || '',
       messageUid: messageUid || '1',
       target: conversation.target || conversation.raw?.target || '',
-      conversationType: ['group', 'channel'].includes(conversation.type) ? 'group' : 'single'
+      conversationType: ['group', 'channel'].includes(conversation.type) ? 'group' : 'single',
+      message: message ? {
+        id: String(message.messageUid || message.id || messageUid),
+        messageUid: String(message.messageUid || message.id || messageUid),
+        text: String(message.text || ''),
+        type: message.type || 'text',
+        attachment: message.attachment || null,
+        senderName: message.senderName || message.from || '',
+        timestamp: Number(message.displayTimestamp || message.timestamp || Date.now())
+      } : null
     }, { withCredentials: false });
     if (response.data?.code !== 0) throw new Error(response.data?.message || '置顶失败');
   }
+
+  async fetchGroupPinnedMessages(conversation) {
+    const groupId = String(conversation?.target || conversation?.raw?.target || '').trim();
+    if (!groupId) return [];
+    const url = `${appConfig.appServer}/groupTopMessage/gets`;
+    const response = await axios.get(url, {
+      params: { groupId },
+      headers: this.getAppAuthHeaders(url),
+      withCredentials: false
+    });
+    const payload = response.data || {};
+    if (payload.code !== undefined && Number(payload.code) !== 0) {
+      throw new Error(payload.message || '置顶消息加载失败');
+    }
+    const result = payload.result ?? payload.data ?? payload;
+    return Array.isArray(result) ? result : [];
+  }
+
+  async addGroupPinnedMessage(conversation, message) {
+    const groupId = String(conversation?.target || conversation?.raw?.target || '').trim();
+    const messageId = String(message?.messageId || message?.messageUid || message?.id || '').trim();
+    if (!groupId || !messageId) throw new Error('缺少群ID或消息ID');
+    const searchableContent = String(message?.text || '').trim()
+      || (message?.type === 'image' ? '[图片]' : message?.type === 'video' ? '[视频]' : '[消息]');
+    const rawConversationType = Number(conversation?.raw?.type);
+    const conversationType = Number.isFinite(rawConversationType) && rawConversationType > 0
+      ? rawConversationType
+      : 1;
+    const url = `${appConfig.appServer}/groupTopMessage/add`;
+    const response = await axios.post(url, {
+      groupId,
+      userId: message?.from || this.currentUser?.userId || '',
+      messageId,
+      messageType: conversationType,
+      messageText: JSON.stringify({
+        ...message,
+        messageId,
+        from: message?.from || this.currentUser?.userId || '',
+        conversation: {
+          type: conversationType,
+          target: groupId,
+          line: Number(conversation?.raw?.line || 0)
+        },
+        content: { searchableContent }
+      })
+    }, {
+      headers: this.getAppAuthHeaders(url),
+      withCredentials: false
+    });
+    const payload = response.data || {};
+    if (payload.code !== undefined && Number(payload.code) !== 0) {
+      const detail = payload.message || payload.msg || payload.result?.message || '置顶失败';
+      throw new Error(payload.code !== undefined ? `${detail}（错误码 ${payload.code}）` : detail);
+    }
+    return payload.result ?? payload.data ?? payload;
+  }
+
+  async removeGroupPinnedMessage(pinId) {
+    const url = `${appConfig.appServer}/groupTopMessage/remove/?id=${encodeURIComponent(pinId)}`;
+    const response = await axios.post(url, {}, {
+      headers: this.getAppAuthHeaders(url),
+      withCredentials: false
+    });
+    const payload = response.data || {};
+    if (payload.code !== undefined && Number(payload.code) !== 0) {
+      throw new Error(payload.message || '取消置顶失败');
+    }
+    return payload.result ?? payload.data ?? payload;
+  }
 
   hideMessages(conversation, messages) {
     const items = Array.isArray(messages) ? messages : [messages];

src/services/mediaProxy.js

@@ -37,6 +37,15 @@ export function videoDisplayUrl(value) {
   return streamUrl.toString();
 }
 
+export function useVideoOriginalFallback(event, value) {
+  const video = event?.currentTarget;
+  const source = String(value || '').trim();
+  if (!video || !source || video.dataset.originalFallback === '1') return;
+  video.dataset.originalFallback = '1';
+  video.src = source;
+  video.load();
+}
+
 export function useImageProxyFallback(event, value) {
   const image = event?.currentTarget;
   if (!image) return;

src/stores/conversations.js

@@ -63,6 +63,39 @@ function writePinnedMessages(messages) {
   localStorage.setItem(scopedStorageKey(LOCAL_PINNED_MESSAGES_KEY), JSON.stringify(messages));
 }
 
+function parseNativePinnedMessage(item, messages = []) {
+  if (!item) return null;
+  const messageId = String(item.messageId || item.messageUid || '').trim();
+  const matched = messages.find(message => [message.messageId, message.messageUid, message.id]
+    .filter(Boolean)
+    .some(value => String(value) === messageId));
+  let encoded = {};
+  try {
+    encoded = typeof item.messageText === 'string' ? JSON.parse(item.messageText) : (item.messageText || {});
+  } catch (error) {
+    encoded = {};
+  }
+  const text = String(
+    encoded?.content?.searchableContent
+      || encoded?.messageContent?.searchableContent
+      || encoded?.text
+      || matched?.text
+      || '[消息]'
+  );
+  return {
+    ...(matched || {}),
+    key: messageId || `group-pin-${item.id}`,
+    id: messageId || `group-pin-${item.id}`,
+    messageUid: messageId || matched?.messageUid || '',
+    serverPinId: String(item.id || ''),
+    text,
+    type: matched?.type || encoded?.type || 'text',
+    attachment: matched?.attachment || encoded?.attachment || null,
+    senderName: matched?.senderName || encoded?.senderName || encoded?.from || '',
+    timestamp: Number(matched?.displayTimestamp || matched?.timestamp || item.updateTime || item.createTime || Date.now())
+  };
+}
+
 function sortConversations(conversations) {
   return [...conversations].sort((left, right) => {
     const leftPinned = Number(left.pinnedAt || left.top || 0);
@@ -318,6 +351,7 @@ export const useConversationStore = defineStore('conversations', {
     selectedMessageIds: [],
     favoriteMessages: [],
     pinnedMessagesByConversation: {},
+    groupPinnedSyncAt: {},
     hiddenConversationIds: [],
     activeFavoriteKey: '',
     actionNotice: '',
@@ -383,6 +417,7 @@ export const useConversationStore = defineStore('conversations', {
       this.conversations = [];
       this.favoriteMessages = readFavoriteMessages();
       this.pinnedMessagesByConversation = readPinnedMessages();
+      this.groupPinnedSyncAt = {};
       this.hiddenConversationIds = readHiddenConversationIds();
       this.activeFavoriteKey = this.favoriteMessages[0]?.key || '';
       this.activeId = '';
@@ -851,13 +886,40 @@ export const useConversationStore = defineStore('conversations', {
       const syncedConversationId = conversation.id;
       const previousMessages = this.messagesByConversation[syncedConversationId] || [];
       try {
-        const messages = await imClient.fetchRemoteMessages(conversation, 50, {
+        const messages = await imClient.fetchRemoteMessages(conversation, 1000, {
           markRead,
           includeConversations: Boolean(options.includeConversations)
         });
+        const isGroupConversation = ['group', 'channel'].includes(conversation.type)
+          || ['group', 'channel', 1, '1'].includes(conversation.raw?.type);
+        const shouldSyncGroupPin = isGroupConversation
+          && Date.now() - Number(this.groupPinnedSyncAt[syncedConversationId] || 0) >= 3000;
+        if (shouldSyncGroupPin) {
+          try {
+            const nativePins = await imClient.fetchGroupPinnedMessages(conversation);
+            this.groupPinnedSyncAt = {
+              ...this.groupPinnedSyncAt,
+              [syncedConversationId]: Date.now()
+            };
+            const nextPinned = { ...this.pinnedMessagesByConversation };
+            if (nativePins.length) {
+              nextPinned[syncedConversationId] = parseNativePinnedMessage(nativePins[0], messages);
+            } else {
+              delete nextPinned[syncedConversationId];
+            }
+            this.pinnedMessagesByConversation = nextPinned;
+            writePinnedMessages(nextPinned);
+          } catch (error) {
+            console.warn('群置顶消息同步失败', error);
+          }
+        }
         const remotePinnedKey = String(messages.pinnedMessageUid || '');
-        if (remotePinnedKey) {
-          const pinnedMessage = messages.find(item => messageStableKey(item) === remotePinnedKey);
+        if (!isGroupConversation && remotePinnedKey) {
+          const pinnedMessage = messages.find(item => messageStableKey(item) === remotePinnedKey)
+            || messages.pinnedMessage
+            || (this.pinnedMessagesByConversation[syncedConversationId]?.key === remotePinnedKey
+              ? this.pinnedMessagesByConversation[syncedConversationId]
+              : null);
           this.pinnedMessagesByConversation = {
             ...this.pinnedMessagesByConversation,
             [syncedConversationId]: pinnedMessage
@@ -1138,16 +1200,16 @@ export const useConversationStore = defineStore('conversations', {
       const current = this.pinnedMessagesByConversation[conversationId];
       const next = { ...this.pinnedMessagesByConversation };
       if (current && current.key === key) {
-        await imClient.setPinnedMessage(this.activeConversation, '').catch(error => this.setActionError(error.message || '取消置顶失败'));
         delete next[conversationId];
+        this.pinnedMessagesByConversation = next;
+        writePinnedMessages(next);
         this.setActionNotice('已取消置顶');
-      } else {
         try {
-          await imClient.setPinnedMessage(this.activeConversation, key);
+          await imClient.setPinnedMessage(this.activeConversation, '', current);
         } catch (error) {
-          this.setActionError(error.message || '置顶失败');
-          return;
+          this.setActionError(`已在本地取消，服务器同步失败：${error.message || '取消置顶失败'}`);
         }
+      } else {
         next[conversationId] = {
           key,
           id: key,
@@ -1157,18 +1219,41 @@ export const useConversationStore = defineStore('conversations', {
           senderName: message.senderName || message.from || '',
           timestamp: Number(message.displayTimestamp || message.timestamp || Date.now())
         };
+        this.pinnedMessagesByConversation = next;
+        writePinnedMessages(next);
         this.setActionNotice('消息已置顶');
+        try {
+          await imClient.setPinnedMessage(this.activeConversation, key, message);
+          const nativePins = await imClient.fetchGroupPinnedMessages(this.activeConversation).catch(() => []);
+          if (nativePins.length) {
+            const refreshed = parseNativePinnedMessage(nativePins[0], this.activeMessages);
+            this.pinnedMessagesByConversation = {
+              ...this.pinnedMessagesByConversation,
+              [conversationId]: refreshed
+            };
+            writePinnedMessages(this.pinnedMessagesByConversation);
+          }
+        } catch (error) {
+          const rollback = { ...this.pinnedMessagesByConversation };
+          delete rollback[conversationId];
+          this.pinnedMessagesByConversation = rollback;
+          writePinnedMessages(rollback);
+          this.setActionError(`置顶失败：${error.message || '服务器同步失败'}`);
+        }
       }
-      this.pinnedMessagesByConversation = next;
-      writePinnedMessages(next);
     },
     async clearPinnedMessage() {
-      await imClient.setPinnedMessage(this.activeConversation, '').catch(error => this.setActionError(error.message || '取消置顶失败'));
+      const current = this.pinnedMessagesByConversation[this.activeId] || null;
       const next = { ...this.pinnedMessagesByConversation };
       delete next[this.activeId];
       this.pinnedMessagesByConversation = next;
       writePinnedMessages(next);
       this.setActionNotice('已取消置顶');
+      try {
+        await imClient.setPinnedMessage(this.activeConversation, '', current);
+      } catch (error) {
+        this.setActionError(`已在本地取消，服务器同步失败：${error.message || '取消置顶失败'}`);
+      }
     },
     setActiveFavorite(key) {
       this.activeFavoriteKey = String(key || '');