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chatroom/app/Http/Controllers/Admin/ForbiddenUsernameController.php

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<?php
/**
* 文件功能:禁用用户名管理控制器(站长专用)
*
* 管理 username_blacklist 表中 type=permanent 的永久禁用词列表。
* 包含:国家领导人名称、攻击性词汇、违禁词等不允许注册或改名的词语。
*
* 用户在注册AuthController和改名ShopService::useRenameCard时均会经过该表检测。
*
* @author ChatRoom Laravel
*
* @version 1.0.0
*/
namespace App\Http\Controllers\Admin;
use App\Http\Controllers\Controller;
use App\Models\UsernameBlacklist;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Carbon;
class ForbiddenUsernameController extends Controller
{
/**
* 分页列出所有永久禁用词。
* 支持关键词模糊搜索GET ?q=xxx
*/
public function index(Request $request): \Illuminate\View\View
{
$q = $request->query('q', '');
$items = UsernameBlacklist::permanent()
->when($q, fn ($query) => $query->where('username', 'like', "%{$q}%"))
->orderByDesc('created_at')
->paginate(20)
->withQueryString();
return view('admin.forbidden-usernames.index', [
'items' => $items,
'q' => $q,
]);
}
/**
* 新增一条永久禁用词。
*
* @param Request $request 请求体username必填reason选填
*/
public function store(Request $request): JsonResponse
{
$validated = $request->validate([
'username' => ['required', 'string', 'max:50'],
'reason' => ['nullable', 'string', 'max:100'],
], [
'username.required' => '禁用词不能为空。',
'username.max' => '禁用词最长50字符。',
]);
$username = trim($validated['username']);
// 已存在同名的永久记录则不重复插入
$exists = UsernameBlacklist::permanent()
->where('username', $username)
->exists();
if ($exists) {
return response()->json(['status' => 'error', 'message' => '该词语已在永久禁用列表中。'], 422);
}
UsernameBlacklist::create([
'username' => $username,
'type' => 'permanent',
'reserved_until' => null,
'reason' => $validated['reason'] ?? null,
'created_at' => Carbon::now(),
]);
return response()->json(['status' => 'success', 'message' => "{$username}」已加入永久禁用列表。"]);
}
/**
* 批量添加永久禁用词。
*
* 接受多行文本或逗号分隔的词语列表,自动去重并过滤已存在者。
* 返回成功添加数量和跳过数量。
*
* @param Request $request 请求体words换行/逗号分隔reason选填共用
*/
public function batchStore(Request $request): JsonResponse
{
$validated = $request->validate([
'words' => ['required', 'string'],
'reason' => ['nullable', 'string', 'max:100'],
], [
'words.required' => '请输入至少一个词语。',
]);
// 净化输入:去除非法 UTF-8 字节零宽字符、BOM、控制字符等防止 json_encode 失败
$rawInput = $this->sanitizeUtf8($validated['words']);
$reason = $this->sanitizeUtf8(trim($validated['reason'] ?? ''));
// 支持换行、逗号、中文逗号、空格分隔
$rawWords = preg_split('/[\r\n,\s]+/u', $rawInput);
// 过滤空串、超长词、去重
$words = collect($rawWords)
->map(fn ($w) => trim($w))
->filter(fn ($w) => $w !== '' && mb_strlen($w) <= 50)
->unique()
->values();
if ($words->isEmpty()) {
return response()->json(['status' => 'error', 'message' => '没有有效的词语,请检查输入。'], 422);
}
// 批量查询已存在的词(一次查询)
$existing = UsernameBlacklist::permanent()
->whereIn('username', $words->all())
->pluck('username')
->flip();
$now = Carbon::now();
$added = 0;
$rows = [];
foreach ($words as $word) {
if ($existing->has($word)) {
continue;
}
$rows[] = [
'username' => $word,
'type' => 'permanent',
'reserved_until' => null,
'reason' => $reason ?: null,
'created_at' => $now,
];
$added++;
}
if (! empty($rows)) {
UsernameBlacklist::insert($rows);
}
$skipped = $words->count() - $added;
$msg = "成功添加 {$added} 个词语".($skipped > 0 ? ",跳过 {$skipped} 个(已存在)" : '').'。';
return response()->json(['status' => 'success', 'message' => $msg, 'added' => $added], 200, [], JSON_UNESCAPED_UNICODE);
}
/**
* 净化字符串,移除非法 UTF-8 字节及常见控制/零宽字符。
*
* @param string $str 待净化字符串
* @return string 合法的 UTF-8 字符串
*/
private function sanitizeUtf8(string $str): string
{
// 去除 BOM
$str = str_replace("\xEF\xBB\xBF", '', $str);
// 去除零宽字符(零宽空格、零宽不连字等)
$str = preg_replace('/[\x{200B}-\x{200D}\x{FEFF}\x{00AD}]/u', '', $str);
// 转换为合法 UTF-8忽略非法字节
$str = mb_convert_encoding($str, 'UTF-8', 'UTF-8');
// 保底:去除控制字符(保留换行 \r\n
$str = preg_replace('/[^\P{C}\r\n]+/u', '', $str);
return $str;
}
/**
* 更新指定禁用词的原因备注。
*
* @param int $id 记录 ID
* @param Request $request 请求体reason
*/
public function update(Request $request, int $id): JsonResponse
{
$item = UsernameBlacklist::permanent()->findOrFail($id);
$validated = $request->validate([
'reason' => ['nullable', 'string', 'max:100'],
]);
$item->update(['reason' => $validated['reason']]);
return response()->json(['status' => 'success', 'message' => '备注已更新。']);
}
/**
* 删除指定永久禁用词。
*
* @param int $id 记录 ID
*/
public function destroy(int $id): JsonResponse
{
$item = UsernameBlacklist::permanent()->findOrFail($id);
$name = $item->username;
$item->delete();
return response()->json(['status' => 'success', 'message' => "{$name}」已从永久禁用列表移除。"]);
}
}