feat: 上传文件功能改进

- 文件上传后显示标记（文件名标签），不填充输入框 - 用户正常输入问题，发送时文件内容自动附加 - 文件内容作为系统消息提交给AI - 界面显示'已上传文件'标记，可点击移除 - 发送后自动清除文件标记
feat: 上传文件功能优化
2026-04-29 22:59:39 +08:00 · 2026-04-29 22:51:06 +08:00 · 2026-04-29 18:31:36 +08:00 · 2026-04-29 18:08:27 +08:00 · 2026-04-29 17:38:25 +08:00
5 changed files with 377 additions and 42 deletions
--- a/backend/app.py
+++ b/backend/app.py
@@ -54,6 +54,8 @@ def init_db():
            model TEXT NOT NULL,
            max_tokens INTEGER DEFAULT 2048,
            temperature REAL DEFAULT 0.7,
+            enable_thinking INTEGER DEFAULT 0,
+            enable_vision INTEGER DEFAULT 0,
            is_default INTEGER DEFAULT 0,
            is_active INTEGER DEFAULT 1,
            created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
@@ -221,6 +223,14 @@ def init_db():
                    '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', 10, 1)
        ''')
    
+    # 检测并添加 llm_configs 新字段（兼容旧数据库）
+    cursor.execute("PRAGMA table_info(llm_configs)")
+    llm_columns = [col[1] for col in cursor.fetchall()]
+    if 'enable_thinking' not in llm_columns:
+        cursor.execute("ALTER TABLE llm_configs ADD COLUMN enable_thinking INTEGER DEFAULT 0")
+    if 'enable_vision' not in llm_columns:
+        cursor.execute("ALTER TABLE llm_configs ADD COLUMN enable_vision INTEGER DEFAULT 0")
+    
    # 初始化默认对话配置
    cursor.execute('SELECT COUNT(*) FROM chat_configs')
    if cursor.fetchone()[0] == 0:
@@ -1005,10 +1015,11 @@ def add_llm_config():
    conn = get_db()
    cursor = conn.cursor()
    cursor.execute('''
-        INSERT INTO llm_configs (name, provider, api_url, api_key, model, max_tokens, temperature)
-        VALUES (?, ?, ?, ?, ?, ?, ?)
+        INSERT INTO llm_configs (name, provider, api_url, api_key, model, max_tokens, temperature, enable_thinking, enable_vision)
+        VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)
    ''', (data['name'], data['provider'], data['api_url'], data['api_key'], 
-          data['model'], data.get('max_tokens', 2048), data.get('temperature', 0.7)))
+          data['model'], data.get('max_tokens', 2048), data.get('temperature', 0.7),
+          data.get('enable_thinking', 0), data.get('enable_vision', 0)))
    conn.commit()
    config_id = cursor.lastrowid
    conn.close()
@@ -1023,9 +1034,10 @@ def update_llm_config(id):
    cursor = conn.cursor()
    cursor.execute('''
        UPDATE llm_configs SET name=?, provider=?, api_url=?, api_key=?, model=?, 
-        max_tokens=?, temperature=?, updated_at=CURRENT_TIMESTAMP WHERE id=?
+        max_tokens=?, temperature=?, enable_thinking=?, enable_vision=?, updated_at=CURRENT_TIMESTAMP WHERE id=?
    ''', (data['name'], data['provider'], data['api_url'], data['api_key'], 
-          data['model'], data.get('max_tokens', 2048), data.get('temperature', 0.7), id))
+          data['model'], data.get('max_tokens', 2048), data.get('temperature', 0.7),
+          data.get('enable_thinking', 0), data.get('enable_vision', 0), id))
    conn.commit()
    conn.close()
    return jsonify({'success': True})
--- a/www/admin.html
+++ b/www/admin.html
@@ -401,6 +401,54 @@
    .toast.show {
      opacity: 1;
    }
+    
+    /* 表单行（双列布局） */
+    .form-row {
+      display: flex;
+      gap: 20px;
+      margin-bottom: 16px;
+    }
+    
+    .form-group-half {
+      flex: 1;
+    }
+    
+    /* 表单提示 */
+    .form-tip {
+      font-size: 12px;
+      color: #999;
+      margin-top: 4px;
+    }
+    
+    /* 开关按钮 */
+    .toggle-switch {
+      width: 50px;
+      height: 26px;
+      background: #ccc;
+      border-radius: 13px;
+      cursor: pointer;
+      position: relative;
+      transition: background 0.3s;
+    }
+    
+    .toggle-switch.active {
+      background: var(--primary);
+    }
+    
+    .toggle-slider {
+      width: 22px;
+      height: 22px;
+      background: white;
+      border-radius: 50%;
+      position: absolute;
+      top: 2px;
+      left: 2px;
+      transition: left 0.3s;
+    }
+    
+    .toggle-switch.active .toggle-slider {
+      left: 26px;
+    }
  </style>
 </head>
 <body>
--- a/www/admin.js
+++ b/www/admin.js
@@ -559,7 +559,8 @@ async function loadLLMPage(content) {
            <th>名称</th>
            <th>提供商</th>
            <th>模型</th>
-            <th>API URL</th>
+            <th>思考</th>
+            <th>视觉</th>
            <th>状态</th>
            <th>操作</th>
          </tr>
@@ -570,7 +571,8 @@ async function loadLLMPage(content) {
              <td>${c.name} ${c.is_default ? '<span class="default-badge">默认</span>' : ''}</td>
              <td>${c.provider}</td>
              <td>${c.model}</td>
-              <td style="max-width: 200px; overflow: hidden; text-overflow: ellipsis;">${c.api_url}</td>
+              <td>${c.enable_thinking ? '🧠 支持' : '—'}</td>
+              <td>${c.enable_vision ? '👁️ 支持' : '—'}</td>
              <td>${c.is_active ? '✅ 启用' : '❌ 禁用'}</td>
              <td>
                <div class="action-btns">
@@ -622,8 +624,28 @@ function showAddLLMModal() {
      <label class="form-label">Temperature</label>
      <input type="number" class="form-input" id="llmTemperature" value="0.7" step="0.1">
    </div>
+    <div class="form-row">
+      <div class="form-group form-group-half">
+        <label class="form-label">思考模式 🧠</label>
+        <div class="toggle-switch" id="llmThinkingToggle" data-value="0">
+          <div class="toggle-slider"></div>
+        </div>
+        <div class="form-tip">支持深度思考/推理能力</div>
+      </div>
+      <div class="form-group form-group-half">
+        <label class="form-label">视觉能力 👁️</label>
+        <div class="toggle-switch" id="llmVisionToggle" data-value="0">
+          <div class="toggle-slider"></div>
+        </div>
+        <div class="form-tip">支持图片输入/多模态</div>
+      </div>
+    </div>
    <button class="form-submit" onclick="saveLLM()">保存</button>
  `);
+  
+  // 绑定开关事件
+  bindToggleSwitch('llmThinkingToggle');
+  bindToggleSwitch('llmVisionToggle');
 }

 function showEditLLMModal(id) {
@@ -664,8 +686,28 @@ function showEditLLMModal(id) {
      <label class="form-label">Temperature</label>
      <input type="number" class="form-input" id="llmTemperature" value="${config.temperature}" step="0.1">
    </div>
+    <div class="form-row">
+      <div class="form-group form-group-half">
+        <label class="form-label">思考模式 🧠</label>
+        <div class="toggle-switch ${config.enable_thinking ? 'active' : ''}" id="llmThinkingToggle" data-value="${config.enable_thinking || 0}">
+          <div class="toggle-slider"></div>
+        </div>
+        <div class="form-tip">支持深度思考/推理能力</div>
+      </div>
+      <div class="form-group form-group-half">
+        <label class="form-label">视觉能力 👁️</label>
+        <div class="toggle-switch ${config.enable_vision ? 'active' : ''}" id="llmVisionToggle" data-value="${config.enable_vision || 0}">
+          <div class="toggle-slider"></div>
+        </div>
+        <div class="form-tip">支持图片输入/多模态</div>
+      </div>
+    </div>
    <button class="form-submit" onclick="updateLLM(${id})">保存</button>
  `);
+  
+  // 绑定开关事件
+  bindToggleSwitch('llmThinkingToggle');
+  bindToggleSwitch('llmVisionToggle');
 }

 async function saveLLM() {
@@ -676,7 +718,9 @@ async function saveLLM() {
    api_key: document.getElementById('llmApiKey').value,
    model: document.getElementById('llmModel').value,
    max_tokens: parseInt(document.getElementById('llmMaxTokens').value),
-    temperature: parseFloat(document.getElementById('llmTemperature').value)
+    temperature: parseFloat(document.getElementById('llmTemperature').value),
+    enable_thinking: parseInt(document.getElementById('llmThinkingToggle')?.dataset.value || 0),
+    enable_vision: parseInt(document.getElementById('llmVisionToggle')?.dataset.value || 0)
  };
  
  if (!data.name || !data.api_url || !data.api_key || !data.model) {
@@ -698,7 +742,9 @@ async function updateLLM(id) {
    api_key: document.getElementById('llmApiKey').value,
    model: document.getElementById('llmModel').value,
    max_tokens: parseInt(document.getElementById('llmMaxTokens').value),
-    temperature: parseFloat(document.getElementById('llmTemperature').value)
+    temperature: parseFloat(document.getElementById('llmTemperature').value),
+    enable_thinking: parseInt(document.getElementById('llmThinkingToggle')?.dataset.value || 0),
+    enable_vision: parseInt(document.getElementById('llmVisionToggle')?.dataset.value || 0)
  };
  
  await fetchAPI(`/api/admin/llm/${id}`, 'PUT', data);
@@ -1512,6 +1558,18 @@ function closeModal() {
  document.getElementById('modal').classList.remove('show');
 }

+function bindToggleSwitch(id) {
+  const toggle = document.getElementById(id);
+  if (!toggle) return;
+  
+  toggle.addEventListener('click', () => {
+    const current = parseInt(toggle.dataset.value) || 0;
+    const newValue = current === 0 ? 1 : 0;
+    toggle.dataset.value = newValue;
+    toggle.classList.toggle('active', newValue === 1);
+  });
+}
+
 function showToast(message) {
  const toast = document.getElementById('toast');
  toast.textContent = message;
--- a/www/app.js
+++ b/www/app.js
@@ -25,6 +25,9 @@ let systemAgents = [];
 // 用户智能体界面显示的智能体
 let agents = [];

+// 上传的文件（临时存储）
+let uploadedFile = null;  // { name: string, content: string }
+
 // 用户添加的智能体（按类别分组）
 let myAgents = {
  basic: [],
@@ -150,6 +153,8 @@ async function loadBackendConfig() {
      CONFIG.apiKey = backendConfig.llm.api_key;
      CONFIG.model = backendConfig.llm.model;
      CONFIG.maxTokens = backendConfig.llm.max_tokens || 2048;
+      CONFIG.enableThinking = backendConfig.llm.enable_thinking || 0;
+      CONFIG.enableVision = backendConfig.llm.enable_vision || 0;
    }
    
    updateAgentsDisplay();
@@ -518,6 +523,10 @@ function savePinnedAgents() {
 // ==================== 主页（底部导航栏） ====================

 function showMainPage() {
+  // 退出对话界面时停止语音播放
+  stopTTSQueue();
+  enableTTS = false;
+  
  currentConversation = null;
  currentAgent = null;
  
@@ -3230,10 +3239,12 @@ function showAgentChatPage() {
      <!-- 上传选项弹窗 -->
      <div class="attach-panel" id="attachPanel">
        <div class="attach-panel-content">
+          ${CONFIG.enableVision ? `
          <div class="attach-item" data-type="image">
            <div class="attach-icon">📷</div>
            <div class="attach-label">上传图片</div>
          </div>
+          ` : ''}
          <div class="attach-item" data-type="file">
            <div class="attach-icon">📄</div>
            <div class="attach-label">上传文件</div>
@@ -3241,7 +3252,7 @@ function showAgentChatPage() {
        </div>
      </div>
      <input type="file" id="imageInput" accept="image/*" style="display:none">
-      <input type="file" id="fileInput" accept=".txt,.md,.pdf,.doc,.docx,.json,.csv" style="display:none">
+      <input type="file" id="fileInput" accept=".txt,.md,.json,.csv,.xml,.yaml,.yml,.log,.sql,.html,.css,.js,.py,.java,.c,.cpp,.go,.rs,.sh,.bash,.ini,.conf,.cfg" style="display:none">
      
      <!-- 搜索栏 -->
      <div class="search-bar" id="searchBar">
@@ -3759,10 +3770,12 @@ function openConversation(id) {
      <!-- 上传选项弹窗 -->
      <div class="attach-panel" id="attachPanel">
        <div class="attach-panel-content">
+          ${CONFIG.enableVision ? `
          <div class="attach-item" data-type="image">
            <div class="attach-icon">📷</div>
            <div class="attach-label">上传图片</div>
          </div>
+          ` : ''}
          <div class="attach-item" data-type="file">
            <div class="attach-icon">📄</div>
            <div class="attach-label">上传文件</div>
@@ -3770,7 +3783,7 @@ function openConversation(id) {
        </div>
      </div>
      <input type="file" id="imageInput" accept="image/*" style="display:none">
-      <input type="file" id="fileInput" accept=".txt,.md,.pdf,.doc,.docx,.json,.csv" style="display:none">
+      <input type="file" id="fileInput" accept=".txt,.md,.json,.csv,.xml,.yaml,.yml,.log,.sql,.html,.css,.js,.py,.java,.c,.cpp,.go,.rs,.sh,.bash,.ini,.conf,.cfg" style="display:none">
    </div>
  `;
  
@@ -3987,8 +4000,26 @@ async function sendMessage() {
  // 隐藏欢迎界面
  welcome.style.display = 'none';

-  // 添加用户消息
-  currentConversation.messages.push({ role: 'user', content: text });
+  // 构建用户消息内容
+  let userContent = text;
+  let fileContent = null;
+  
+  // 如果有上传的文件，附加文件内容
+  if (uploadedFile) {
+    fileContent = uploadedFile;
+    userContent = text;  // 用户输入的问题
+    
+    // 发送后清除上传文件标记
+    uploadedFile = null;
+    const fileTagArea = document.getElementById('fileTagArea');
+    if (fileTagArea) fileTagArea.innerHTML = '';
+  }
+
+  // 添加用户消息（界面显示）
+  const displayContent = fileContent 
+    ? `${text}\n\n📎 已上传文件: ${fileContent.name}` 
+    : text;
+  currentConversation.messages.push({ role: 'user', content: displayContent });
  
  // 更新对话标题（第一条用户消息）
  if (currentConversation.title === '新对话') {
@@ -4023,11 +4054,11 @@ async function sendMessage() {
  autoResize(userInput);

  // 调用流式生成
-  await streamGenerate(currentConversation.messages.length - 1);
+  await streamGenerate(currentConversation.messages.length - 1, fileContent);
 }

 // 流式生成 AI 回复
-async function streamGenerate(userMsgIndex) {
+async function streamGenerate(userMsgIndex, fileContent = null) {
  isLoading = true;
  sendBtn.disabled = true;

@@ -4072,6 +4103,14 @@ async function streamGenerate(userMsgIndex) {
      content: m.content
    }));
    
+    // 如果有上传的文件，添加文件内容作为系统消息
+    if (fileContent) {
+      messagesToSend.push({
+        role: 'system',
+        content: `用户上传了文件 "${fileContent.name}"，以下是文件内容：\n\n${fileContent.content}`
+      });
+    }
+    
    // 如果有搜索结果，将搜索内容添加到消息中
    if (searchResults) {
      const searchContext = formatSearchResultsForLLM(searchResults);
@@ -4817,9 +4856,18 @@ function cleanTTSText(text) {
  // 移除数字列表（1.、2.等）
  cleaned = cleaned.replace(/^\d+\.\s+/gm, '');
  
+  // 移除任务列表（[ ]、[x]）
+  cleaned = cleaned.replace(/^\s*\[[x ]\]\s*/gmi, '');
+  
+  // 处理图片语法 ![alt](url) -> 移除整个图片标记
+  cleaned = cleaned.replace(/!\[[^\]]*\]\([^)]+\)/g, '');
+  
  // 处理链接 [text](url) -> 只保留text
  cleaned = cleaned.replace(/\[([^\]]+)\]\([^)]+\)/g, '$1');
  
+  // 移除删除线（~~text~~）
+  cleaned = cleaned.replace(/~~([^~]+)~~/g, '$1');
+  
  // 移除粗体/斜体符号（**text**、*text*、__text__、_text_）
  cleaned = cleaned.replace(/\*\*([^*]+)\*\*/g, '$1');
  cleaned = cleaned.replace(/\*([^*]+)\*/g, '$1');
@@ -4829,10 +4877,18 @@ function cleanTTSText(text) {
  // 移除引用符号（>）
  cleaned = cleaned.replace(/^>\s*/gm, '');
  
-  // 移除分割线（---、***）
+  // 移除分割线（---、***、___）
  cleaned = cleaned.replace(/^[\-\*]{3,}$/gm, '');
+  cleaned = cleaned.replace(/^_{3,}$/gm, '');
  
-  // 移除表情符号（常见emoji范围）
+  // 移除表格分隔符（| 和 ---|--|--）
+  cleaned = cleaned.replace(/^\|.*\|$/gm, '');  // 表格行
+  cleaned = cleaned.replace(/^\s*[\-\:]+\s*\|[\s\-\:]+\|[\s\-\:]+\s*$/gm, '');  // 表格分隔行
+  
+  // 移除脚注引用（[^1]）
+  cleaned = cleaned.replace(/\[\^[^\]]+\]/g, '');
+  
+  // 移除表情符号（完整emoji范围）
  cleaned = cleaned.replace(/[\u{1F600}-\u{1F64F}]/gu, '');  // 表情
  cleaned = cleaned.replace(/[\u{1F300}-\u{1F5FF}]/gu, '');  // 符号和图形
  cleaned = cleaned.replace(/[\u{1F680}-\u{1F6FF}]/gu, '');  // 交通和地图
@@ -4846,11 +4902,74 @@ function cleanTTSText(text) {
  cleaned = cleaned.replace(/[\u{2700}-\u{27BF}]/gu, '');    // 装饰符号
  cleaned = cleaned.replace(/[\u{FE00}-\u{FE0F}]/gu, '');    // 变体选择符
  cleaned = cleaned.replace(/[\u{1F1E0}-\u{1F1FF}]/gu, '');  // 旗帜
+  cleaned = cleaned.replace(/[\u{1F004}\u{1F0CF}]/gu, '');   // 麻将牌
+  cleaned = cleaned.replace(/[\u{231A}-\u{231B}]/gu, '');    // 时钟
+  cleaned = cleaned.replace(/[\u{23E9}-\u{23F3}]/gu, '');    // 其他符号
+  cleaned = cleaned.replace(/[\u{23F8}-\u{23FA}]/gu, '');    // 暂停/播放等
+  cleaned = cleaned.replace(/[\u{25AA}-\u{25AB}]/gu, '');    // 小方块
+  cleaned = cleaned.replace(/[\u{25B6}]/gu, '');             // 播放按钮
+  cleaned = cleaned.replace(/[\u{25C0}]/gu, '');             // 反向播放
+  cleaned = cleaned.replace(/[\u{25FB}-\u{25FE}]/gu, '');    // 白色方块
+  cleaned = cleaned.replace(/[\u{2614}-\u{2615}]/gu, '');    // 雨伞/咖啡
+  cleaned = cleaned.replace(/[\u{2648}-\u{2653}]/gu, '');    // 星座符号
+  cleaned = cleaned.replace(/[\u{267F}]/gu, '');             // 轮椅符号
+  cleaned = cleaned.replace(/[\u{2693}]/gu, '');             // 船锚
+  cleaned = cleaned.replace(/[\u{26A1}]/gu, '');             // 高压符号
+  cleaned = cleaned.replace(/[\u{26AA}-\u{26AB}]/gu, '');    // 圆圈
+  cleaned = cleaned.replace(/[\u{26BD}]/gu, '');             // 足球
+  cleaned = cleaned.replace(/[\u{26BE}]/gu, '');             // 棒球
+  cleaned = cleaned.replace(/[\u{26C4}]/gu, '');             // 雪人
+  cleaned = cleaned.replace(/[\u{26C5}]/gu, '');             // 太阳云
+  cleaned = cleaned.replace(/[\u{26CE}]/gu, '');             // 星座
+  cleaned = cleaned.replace(/[\u{26D4}]/gu, '');             // 禁止进入
+  cleaned = cleaned.replace(/[\u{26EA}]/gu, '');             // 教堂
+  cleaned = cleaned.replace(/[\u{26F2}]/gu, '');             // 喷泉
+  cleaned = cleaned.replace(/[\u{26F3}]/gu, '');             // 高尔夫
+  cleaned = cleaned.replace(/[\u{26F5}]/gu, '');             // 帆船
+  cleaned = cleaned.replace(/[\u{26FA}]/gu, '');             // 帐篷
+  cleaned = cleaned.replace(/[\u{26FD}]/gu, '');             // 加油站
+  cleaned = cleaned.replace(/[\u{2702}]/gu, '');             // 剪刀
+  cleaned = cleaned.replace(/[\u{2705}]/gu, '');             // 白色对勾
+  cleaned = cleaned.replace(/[\u{2708}-\u{270D}]/gu, '');    // 飞机/笔等
+  cleaned = cleaned.replace(/[\u{270F}]/gu, '');             // 铅笔
+  cleaned = cleaned.replace(/[\u{2712}]/gu, '');             // 笔
+  cleaned = cleaned.replace(/[\u{2714}]/gu, '');             // 对勾
+  cleaned = cleaned.replace(/[\u{2716}]/gu, '');             // X标记
+  cleaned = cleaned.replace(/[\u{271D}]/gu, '');             // 十字架
+  cleaned = cleaned.replace(/[\u{2721}]/gu, '');             // 六芒星
+  cleaned = cleaned.replace(/[\u{2728}]/gu, '');             // 星光
+  cleaned = cleaned.replace(/[\u{2733}-\u{2734}]/gu, '');    // 八角雪花
+  cleaned = cleaned.replace(/[\u{2744}]/gu, '');             // 雪花
+  cleaned = cleaned.replace(/[\u{2747}]/gu, '');             // 闪亮
+  cleaned = cleaned.replace(/[\u{274C}]/gu, '');             // 红色X
+  cleaned = cleaned.replace(/[\u{274E}]/gu, '');             // 红色方X
+  cleaned = cleaned.replace(/[\u{2753}-\u{2755}]/gu, '');    // 问号
+  cleaned = cleaned.replace(/[\u{2757}]/gu, '');             // 感叹号
+  cleaned = cleaned.replace(/[\u{2763}-\u{2764}]/gu, '');    // 心形
+  cleaned = cleaned.replace(/[\u{2795}-\u{2797}]/gu, '');    // 加减乘
+  cleaned = cleaned.replace(/[\u{27A1}]/gu, '');             // 箭头
+  cleaned = cleaned.replace(/[\u{27B0}]/gu, '');             // 曲线箭头
+  cleaned = cleaned.replace(/[\u{27BF}]/gu, '');             // 双曲线箭头
+  cleaned = cleaned.replace(/[\u{2934}-\u{2935}]/gu, '');    // 箭头
+  cleaned = cleaned.replace(/[\u{2B05}-\u{2B07}]/gu, '');    // 方向箭头
+  cleaned = cleaned.replace(/[\u{2B1B}-\u{2B1C}]/gu, '');    // 黑白方块
+  cleaned = cleaned.replace(/[\u{2B50}]/gu, '');             // 中等星
+  cleaned = cleaned.replace(/[\u{2B55}]/gu, '');             // 圆圈
+  cleaned = cleaned.replace(/[\u{3030}]/gu, '');             // 波浪线
+  cleaned = cleaned.replace(/[\u{303D}]/gu, '');             // 花括号
+  cleaned = cleaned.replace(/[\u{3297}]/gu, '');             // 圆圈日文
+  cleaned = cleaned.replace(/[\u{3299}]/gu, '');             // 圆圈日文
  
  // 移除HTML实体
  cleaned = cleaned.replace(/&[a-zA-Z]+;/g, '');
  
-  // 清理多余空白
+  // 移除特殊符号（数学、货币等）
+  cleaned = cleaned.replace(/[≤≥≠≈∞∑∏√∫]/g, '');
+  cleaned = cleaned.replace(/[€£¥₹₽₩]/g, '');
+  cleaned = cleaned.replace(/[©®™]/g, '');
+  
+  // 清理多余空白和换行
+  cleaned = cleaned.replace(/\n+/g, ' ');
  cleaned = cleaned.replace(/\s+/g, ' ').trim();
  
  return cleaned;
@@ -5209,39 +5328,93 @@ async function handleFileUpload(e) {
  const file = e.target.files[0];
  if (!file) return;
  
-  const reader = new FileReader();
-  reader.onload = async (event) => {
-    const content = event.target.result;
-    const fileName = file.name;
-    
-    // 添加用户消息
-    currentConversation.messages.push({
-      role: 'user',
-      content: `[文件: ${fileName}]\\n\\n${content.slice(0, 500)}${content.length > 500 ? '...' : ''}`
-    });
-    
-    currentConversation.updatedAt = Date.now();
-    saveConversations();
-    renderMessages();
-    
-    if (welcome) welcome.style.display = 'none';
-    
-    // 调用AI生成
-    await streamGenerateWithFile(content, fileName);
-  };
+  // 检查文件类型（只支持文本文件）
+  const allowedExtensions = ['.txt', '.md', '.json', '.csv', '.xml', '.yaml', '.yml', '.log', '.sql', '.html', '.css', '.js', '.py', '.java', '.c', '.cpp', '.go', '.rs', '.sh', '.bash', '.ini', '.conf', '.cfg'];
+  const fileName = file.name.toLowerCase();
+  const isAllowed = allowedExtensions.some(ext => fileName.endsWith(ext));
  
-  // 根据文件类型读取
-  if (file.name.endsWith('.pdf') || file.name.endsWith('.doc') || file.name.endsWith('.docx')) {
-    // PDF/Word文件暂时只显示文件名
-    showToast('PDF/Word文件暂不支持解析，请上传文本文件');
+  if (!isAllowed) {
+    showToast('只支持文本类型的文件（txt、md、json、代码文件等）');
    e.target.value = '';
    return;
  }
  
+  // 检查文件大小（限制约 10KB，大约 10000 字符）
+  const maxSizeKB = 15;  // 留一点余量
+  if (file.size > maxSizeKB * 1024) {
+    showToast(`文件太大，请上传小于 ${maxSizeKB}KB 的文本文件`);
+    e.target.value = '';
+    return;
+  }
+  
+  showToast('正在读取文件...');
+  
+  const reader = new FileReader();
+  reader.onload = async (event) => {
+    let content = event.target.result;
+    
+    // 限制最多 10000 字符
+    if (content.length > 10000) {
+      content = content.slice(0, 10000);
+    }
+    
+    // 存储上传的文件
+    uploadedFile = {
+      name: file.name,
+      content: content
+    };
+    
+    // 显示文件标记
+    showUploadedFileTag();
+    
+    showToast(`已上传: ${file.name}`);
+    userInput.focus();
+  };
+  
+  reader.onerror = () => {
+    showToast('文件读取失败');
+  };
+  
  reader.readAsText(file);
  e.target.value = '';
 }

+// 显示上传文件标记
+function showUploadedFileTag() {
+  if (!uploadedFile) return;
+  
+  // 查找或创建文件标记区域
+  let fileTagArea = document.getElementById('fileTagArea');
+  if (!fileTagArea) {
+    fileTagArea = document.createElement('div');
+    fileTagArea.id = 'fileTagArea';
+    fileTagArea.className = 'file-tag-area';
+    // 插入到输入区域前面
+    const inputArea = document.querySelector('.input-area');
+    if (inputArea) {
+      inputArea.insertBefore(fileTagArea, inputArea.firstChild);
+    }
+  }
+  
+  fileTagArea.innerHTML = `
+    <div class="file-tag">
+      <span class="file-tag-icon">📄</span>
+      <span class="file-tag-name">${uploadedFile.name}</span>
+      <button class="file-tag-remove" onclick="removeUploadedFile()">✕</button>
+    </div>
+  `;
+}
+
+// 移除上传的文件
+function removeUploadedFile() {
+  uploadedFile = null;
+  const fileTagArea = document.getElementById('fileTagArea');
+  if (fileTagArea) {
+    fileTagArea.innerHTML = '';
+  }
+  showToast('已移除文件');
+}
+
 // 带图片的流式生成
 async function streamGenerateWithImage(base64, imageName) {
  isLoading = true;
--- a/www/style.css
+++ b/www/style.css
@@ -3198,6 +3198,50 @@ body {
  color: var(--text-color);
 }

+/* 文件标记区域 */
+.file-tag-area {
+  padding: 8px 12px;
+  background: rgba(102, 126, 234, 0.05);
+  border-radius: 8px;
+  margin-bottom: 8px;
+}
+
+.file-tag {
+  display: inline-flex;
+  align-items: center;
+  gap: 6px;
+  padding: 6px 12px;
+  background: var(--primary);
+  color: white;
+  border-radius: 20px;
+  font-size: 13px;
+}
+
+.file-tag-icon {
+  font-size: 16px;
+}
+
+.file-tag-name {
+  max-width: 150px;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.file-tag-remove {
+  background: none;
+  border: none;
+  color: white;
+  font-size: 14px;
+  cursor: pointer;
+  padding: 0 4px;
+  opacity: 0.8;
+}
+
+.file-tag-remove:hover {
+  opacity: 1;
+}
+
 #userInput {
  flex: 1;
  padding: 12px 16px;
Author	SHA1	Message	Date
hubian	0b67bbe885	feat: 上传文件功能改进 - 文件上传后显示标记（文件名标签），不填充输入框 - 用户正常输入问题，发送时文件内容自动附加 - 文件内容作为系统消息提交给AI - 界面显示'已上传文件'标记，可点击移除 - 发送后自动清除文件标记	2026-04-29 22:59:39 +08:00
hubian	b98ab79ae2	feat: 上传文件功能优化 - 只支持文本类型文件（txt、md、json、csv、代码文件等） - 最多读取 10000 字符，超出自动截取 - 文件内容附加到输入框，用户可编辑后发送 - 与用户消息一起提交给大模型处理 - 移除 PDF/DOC 等非文本文件支持	2026-04-29 22:51:06 +08:00
hubian	0d88d22509	feat: 根据大模型视觉能力控制上传图片选项显示 - 前端加载 LLM 配置时保存 enable_vision 到 CONFIG - 上传弹窗根据 CONFIG.enableVision 决定是否显示图片上传选项 - 无视觉能力的大模型只显示上传文件选项 - 普通对话和智能体对话界面都应用此逻辑	2026-04-29 18:31:36 +08:00
hubian	7c8adc0d78	feat: 大模型配置增加思考模式和视觉能力选项 - 数据库新增 enable_thinking 和 enable_vision 字段 - 后台管理表格显示思考🧠和视觉👁️能力状态 - 添加/编辑表单增加开关按钮选择 - 兼容旧数据库自动添加新字段	2026-04-29 18:08:27 +08:00
hubian	6fd916f57c	feat: TTS语音播放优化 - 退出对话界面时自动停止语音播放 - 优化TTS文本清理：添加更多Markdown特殊字符过滤 - 新增：任务列表、图片语法、删除线、表格、脚注引用清理 - 新增：更完整的emoji范围清理（200+个符号） - 新增：数学符号、货币符号、版权符号清理	2026-04-29 17:38:25 +08:00