init

file-upload-site/.dockerignore

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+.env
+.git
+.gitignore
+uploads/*
+__pycache__
+*.pyc

file-upload-site/.env.example

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+# ── 文件上传网站配置 ──────────────────────────────────────
+# 复制本文件为 .env 并修改对应值：cp .env.example .env
+
+# Flask 密钥（生产环境务必更换为随机字符串）
+SECRET_KEY=file-upload-site-secret-key-change-me
+
+# NAS 文件存储根目录（绝对路径）
+# Docker 部署时保持默认 /app/uploads，通过 docker-compose volumes 映射宿主机目录
+# 直接部署时改为 NAS 实际路径
+# UPLOAD_ROOT=/mnt/nas/文字稿
+
+# 单文件大小限制（字节），默认 20MB
+# MAX_FILE_SIZE=20971520
+
+# 单次最多上传文件数
+# MAX_FILES_PER_UPLOAD=9
+
+# Rate Limiting：单 IP 每小时最多上传次数
+# RATE_LIMIT_PER_HOUR=20
+
+# 验证码过期时间（秒）
+# CAPTCHA_EXPIRY=300
+
+# 服务监听端口（Docker 部署时端口映射在 docker-compose.yml 中配置）
+# PORT=5000
+
+# 是否开启 debug 模式（true/false）
+# DEBUG=false

file-upload-site/.gitignore

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+.env
+uploads/
+__pycache__/
+*.pyc
+*.pyo
+.venv/
+venv/
+.DS_Store

file-upload-site/Dockerfile

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+FROM python:3.10-slim
+
+# 系统依赖（python-magic 需要 libmagic）
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends libmagic1 && \
+    rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+# 先复制依赖文件，利用 Docker 缓存
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# 复制应用代码
+COPY . .
+
+# 创建默认上传目录
+RUN mkdir -p /app/uploads
+
+EXPOSE 5000
+
+CMD ["python3", "app.py"]

file-upload-site/app.py

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+"""
+文件上传网站 - 后端服务
+基于 Flask，提供文件上传、图形验证码、Rate Limiting 等功能
+"""
+import os
+import re
+import time
+import random
+import string
+from io import BytesIO
+from datetime import datetime
+
+from flask import Flask, request, jsonify, render_template, session, send_file
+from flask_limiter import Limiter
+from flask_limiter.util import get_remote_address
+from PIL import Image, ImageDraw, ImageFont
+import magic
+
+from config import Config
+
+# ── 初始化 Flask 应用 ──────────────────────────────────────────────
+app = Flask(__name__)
+app.config.from_object(Config)
+app.secret_key = Config.SECRET_KEY
+
+# ── Rate Limiter ───────────────────────────────────────────────────
+limiter = Limiter(
+    app=app,
+    key_func=get_remote_address,
+    default_limits=[],
+    storage_uri="memory://"
+)
+
+# ── 常量 ───────────────────────────────────────────────────────────
+# 姓名校验：中文、英文字母、数字、下划线，2-20 字符
+NAME_REGEX = re.compile(r'^[\u4e00-\u9fa5a-zA-Z0-9_]{2,20}$')
+
+# 文件名中不安全的字符
+UNSAFE_FILENAME_CHARS = re.compile(r'[<>:"/\\|?*\x00-\x1f]')
+
+
+# ── 工具函数 ────────────────────────────────────────────────────────
+def sanitize_name(name: str) -> str | None:
+    """校验并清洗姓名，防止路径穿越攻击"""
+    name = name.strip()
+    # 移除路径穿越字符
+    name = name.replace('..', '').replace('/', '').replace('\\', '')
+    # 校验格式
+    if not NAME_REGEX.match(name):
+        return None
+    return name
+
+
+def sanitize_filename(filename: str) -> str:
+    """清洗文件名，移除不安全字符"""
+    # 只保留文件名部分（去掉路径）
+    filename = os.path.basename(filename)
+    # 移除不安全字符
+    filename = UNSAFE_FILENAME_CHARS.sub('', filename)
+    # 去掉首尾空格和点
+    filename = filename.strip(' .')
+    # 限制长度（保留扩展名）
+    if len(filename) > 200:
+        name_part, ext = os.path.splitext(filename)
+        filename = name_part[:200 - len(ext)] + ext
+    # 如果文件名为空，使用默认名
+    return filename if filename else 'unnamed.txt'
+
+
+def verify_file_type(file_data: bytes, filename: str) -> tuple[bool, str | None]:
+    """通过 Magic Bytes 校验文件真实类型"""
+    try:
+        mime = magic.from_buffer(file_data, mime=True)
+    except Exception:
+        return False, '无法识别文件类型'
+
+    if mime not in Config.ALLOWED_MIME_TYPES:
+        return False, f'不支持的文件类型 ({mime})，请上传文字类文档'
+
+    return True, None
+
+
+def generate_captcha_text(length: int = 4) -> str:
+    """生成随机验证码文本（去掉易混淆字符）"""
+    chars = string.ascii_uppercase + string.digits
+    for c in 'O0I1L':
+        chars = chars.replace(c, '')
+    return ''.join(random.choices(chars, k=length))
+
+
+def generate_captcha_image(text: str) -> Image.Image:
+    """生成验证码图片（含干扰线和噪点）"""
+    width, height = 140, 48
+    # 浅色随机背景
+    bg_color = (random.randint(235, 255), random.randint(235, 255), random.randint(235, 255))
+    image = Image.new('RGB', (width, height), bg_color)
+    draw = ImageDraw.Draw(image)
+
+    # 干扰线
+    for _ in range(6):
+        x1, y1 = random.randint(0, width), random.randint(0, height)
+        x2, y2 = random.randint(0, width), random.randint(0, height)
+        line_color = (random.randint(160, 210), random.randint(160, 210), random.randint(160, 210))
+        draw.line([(x1, y1), (x2, y2)], fill=line_color, width=1)
+
+    # 噪点
+    for _ in range(80):
+        x, y = random.randint(0, width - 1), random.randint(0, height - 1)
+        dot_color = (random.randint(140, 200), random.randint(140, 200), random.randint(140, 200))
+        draw.point((x, y), fill=dot_color)
+
+    # 绘制文字
+    try:
+        font = ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf", 30)
+    except OSError:
+        font = ImageFont.load_default()
+
+    for i, char in enumerate(text):
+        x = 12 + i * 30
+        y = random.randint(4, 10)
+        color = (random.randint(0, 80), random.randint(0, 80), random.randint(0, 80))
+        draw.text((x, y), char, font=font, fill=color)
+
+    return image
+
+
+def update_upload_log(user_dir: str, name: str, results: list, timestamp: str):
+    """更新用户文件夹中的 Markdown 上传日志"""
+    log_file = os.path.join(user_dir, '00_上传日志.md')
+
+    # 统计累计文件数（排除日志文件）
+    total_files = len([f for f in os.listdir(user_dir) if not f.startswith('00_')])
+
+    # 构建日志条目
+    now_str = datetime.now().strftime('%Y-%m-%d %H:%M:%S')
+    lines = [
+        f"\n### {now_str}",
+        f"- 上传者：{name}",
+        f"- 本次上传文件数：{len(results)}",
+        "| 原文件名 | 存储文件名 |",
+        "|---------|----------|",
+    ]
+    for r in results:
+        lines.append(f"| {r['filename']} | {r['storage_filename']} |")
+    lines.append(f"- 累计总文件数：{total_files}")
+    entry = '\n'.join(lines) + '\n'
+
+    # 写入或追加
+    if os.path.exists(log_file):
+        with open(log_file, 'a', encoding='utf-8') as f:
+            f.write(entry)
+    else:
+        with open(log_file, 'w', encoding='utf-8') as f:
+            f.write("## 上传记录\n")
+            f.write(entry)
+
+
+# ── 路由 ────────────────────────────────────────────────────────────
+@app.route('/')
+def index():
+    """渲染上传页面"""
+    return render_template('index.html')
+
+
+@app.route('/api/captcha')
+def get_captcha():
+    """生成并返回新的验证码图片"""
+    text = generate_captcha_text()
+    session['captcha'] = text.lower()
+    session['captcha_time'] = time.time()
+
+    image = generate_captcha_image(text)
+    buf = BytesIO()
+    image.save(buf, format='PNG')
+    buf.seek(0)
+
+    response = send_file(buf, mimetype='image/png')
+    response.headers['Cache-Control'] = 'no-store, no-cache, must-revalidate, max-age=0'
+    return response
+
+
+@app.route('/api/upload', methods=['POST'])
+@limiter.limit(f"{Config.RATE_LIMIT_PER_HOUR}/hour")
+def upload_file():
+    """处理文件上传"""
+
+    # ── 1. 校验验证码 ──────────────────────────────────────────
+    captcha_input = request.form.get('captcha', '').strip().lower()
+    captcha_expected = session.get('captcha')
+    captcha_time = session.get('captcha_time', 0)
+
+    if not captcha_expected:
+        return jsonify({'error': '请先获取验证码'}), 400
+    if time.time() - captcha_time > Config.CAPTCHA_EXPIRY:
+        session.pop('captcha', None)
+        session.pop('captcha_time', None)
+        return jsonify({'error': '验证码已过期，请刷新'}), 400
+    if captcha_input != captcha_expected:
+        return jsonify({'error': '验证码错误'}), 400
+
+    # 验证码使用后立即清除（一次性）
+    session.pop('captcha', None)
+    session.pop('captcha_time', None)
+
+    # ── 2. 校验姓名 ────────────────────────────────────────────
+    raw_name = request.form.get('name', '')
+    name = sanitize_name(raw_name)
+    if not name:
+        return jsonify({'error': '姓名格式不正确（2-20个字符，仅支持中文、英文字母、数字和下划线）'}), 400
+
+    # ── 3. 校验文件列表 ────────────────────────────────────────
+    files = request.files.getlist('files')
+    if not files or all(f.filename == '' for f in files):
+        return jsonify({'error': '请选择要上传的文件'}), 400
+    valid_files = [f for f in files if f.filename]
+    if len(valid_files) > Config.MAX_FILES_PER_UPLOAD:
+        return jsonify({'error': f'单次最多上传 {Config.MAX_FILES_PER_UPLOAD} 个文件'}), 400
+
+    # ── 4. 创建用户目录 ────────────────────────────────────────
+    user_dir = os.path.join(Config.UPLOAD_ROOT, name)
+    os.makedirs(user_dir, exist_ok=True)
+
+    # ── 5. 逐个处理文件 ────────────────────────────────────────
+    timestamp = datetime.now().strftime('%Y%m%d_%H%M%S')
+    results = []
+
+    for file in valid_files:
+        original_filename = file.filename
+        file_data = file.read()
+
+        # 5a. 文件大小校验
+        if len(file_data) > Config.MAX_FILE_SIZE:
+            results.append({
+                'filename': original_filename,
+                'success': False,
+                'error': f'文件超过 {Config.MAX_FILE_SIZE // (1024 * 1024)}MB 限制'
+            })
+            continue
+
+        # 5b. 文件类型校验（Magic Bytes）
+        valid, error_msg = verify_file_type(file_data, original_filename)
+        if not valid:
+            results.append({
+                'filename': original_filename,
+                'success': False,
+                'error': error_msg
+            })
+            continue
+
+        # 5c. 清洗文件名 + 生成存储文件名
+        safe_name = sanitize_filename(original_filename)
+        storage_filename = f"{timestamp}_{safe_name}"
+        filepath = os.path.join(user_dir, storage_filename)
+
+        # 处理同名文件（同一秒内上传的）
+        counter = 1
+        while os.path.exists(filepath):
+            name_part, ext = os.path.splitext(safe_name)
+            storage_filename = f"{timestamp}_{name_part}_{counter}{ext}"
+            filepath = os.path.join(user_dir, storage_filename)
+            counter += 1
+
+        # 5d. 写入文件
+        with open(filepath, 'wb') as f:
+            f.write(file_data)
+
+        results.append({
+            'filename': original_filename,
+            'storage_filename': storage_filename,
+            'success': True
+        })
+
+    # ── 6. 更新上传日志 ────────────────────────────────────────
+    success_results = [r for r in results if r['success']]
+    if success_results:
+        update_upload_log(user_dir, name, success_results, timestamp)
+
+    # ── 7. 返回结果 ────────────────────────────────────────────
+    total_files = len([f for f in os.listdir(user_dir) if not f.startswith('00_')])
+
+    return jsonify({
+        'success': len(success_results) > 0,
+        'results': results,
+        'success_count': len(success_results),
+        'fail_count': len(results) - len(success_results),
+        'total_files': total_files,
+        'storage_path': f"文字稿/{name}/"
+    })
+
+
+# ── 自定义 Rate Limit 错误处理 ──────────────────────────────────────
+@app.errorhandler(429)
+def ratelimit_handler(e):
+    return jsonify({'error': '上传过于频繁，请稍后再试（每小时最多 20 次上传）'}), 429
+
+
+# ── 启动 ────────────────────────────────────────────────────────────
+if __name__ == '__main__':
+    os.makedirs(Config.UPLOAD_ROOT, exist_ok=True)
+    app.run(host='0.0.0.0', port=Config.PORT, debug=Config.DEBUG)

file-upload-site/config.py

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+import os
+from dotenv import load_dotenv
+
+# 加载 .env 文件
+load_dotenv(os.path.join(os.path.dirname(__file__), '.env'))
+
+
+class Config:
+    """应用配置（全部从环境变量 / .env 文件读取）"""
+
+    # Flask 密钥
+    SECRET_KEY = os.getenv('SECRET_KEY', 'file-upload-site-secret-key-change-me')
+
+    # NAS 文件存储根目录
+    UPLOAD_ROOT = os.getenv('UPLOAD_ROOT', os.path.join(os.path.dirname(__file__), 'uploads'))
+
+    # 单文件大小限制（字节），默认 20MB
+    MAX_FILE_SIZE = int(os.getenv('MAX_FILE_SIZE', str(20 * 1024 * 1024)))
+
+    # 单次最多上传文件数
+    MAX_FILES_PER_UPLOAD = int(os.getenv('MAX_FILES_PER_UPLOAD', '9'))
+
+    # Rate Limiting：单 IP 每小时最多上传次数
+    RATE_LIMIT_PER_HOUR = int(os.getenv('RATE_LIMIT_PER_HOUR', '20'))
+
+    # 验证码过期时间（秒）
+    CAPTCHA_EXPIRY = int(os.getenv('CAPTCHA_EXPIRY', '300'))
+
+    # 服务监听端口
+    PORT = int(os.getenv('PORT', '5000'))
+
+    # 是否开启 debug 模式
+    DEBUG = os.getenv('DEBUG', 'false').lower() in ('true', '1', 'yes')
+
+    # 允许的文件 MIME 类型
+    ALLOWED_MIME_TYPES = {
+        'text/plain': '.txt',
+        'application/msword': '.doc',
+        'application/vnd.openxmlformats-officedocument.wordprocessingml.document': '.docx',
+        'application/pdf': '.pdf',
+        'application/rtf': '.rtf',
+        'text/rtf': '.rtf',
+        'application/vnd.oasis.opendocument.text': '.odt',
+        'text/html': '.html',
+        'text/csv': '.csv',
+        'application/vnd.ms-excel': '.xls',
+        'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet': '.xlsx',
+    }

file-upload-site/docker-compose.yml

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+services:
+  file-upload:
+    build: .
+    container_name: file-upload-site
+    restart: unless-stopped
+    ports:
+      - "7001:5000"
+    env_file:
+      - .env
+    volumes:
+      # 映射 NAS 目录到容器内（按实际 NAS 挂载路径修改冒号左侧）
+      - /volume1/文字稿:/app/uploads

file-upload-site/requirements.txt

@@ -0,0 +1,5 @@
+Flask==3.1.1
+Flask-Limiter==3.12
+Pillow==11.2.1
+python-magic==0.4.27
+python-dotenv==1.1.0

file-upload-site/static/css/style.css

@@ -0,0 +1,742 @@
+/* ── 基础变量 ───────────────────────────────────────────── */
+:root {
+    --bg: #faf9f7;
+    --bg-card: #ffffff;
+    --bg-hover: #f5f4f2;
+    --ink: #1a1816;
+    --muted: #7a756e;
+    --border: #e8e5e0;
+    --border-focus: #c4a882;
+    --accent: #b45309;
+    --accent-hover: #92400e;
+    --accent-light: #fef3c7;
+    --success: #0f766e;
+    --success-bg: #f0fdfa;
+    --error: #dc2626;
+    --error-bg: #fef2f2;
+    --radius: 10px;
+    --radius-sm: 6px;
+    --shadow: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
+    --shadow-lg: 0 10px 40px rgba(0,0,0,0.06), 0 2px 10px rgba(0,0,0,0.04);
+    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
+    --font-mono: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", monospace;
+    --transition: 0.2s ease;
+}
+
+/* ── 重置 ───────────────────────────────────────────────── */
+*, *::before, *::after {
+    box-sizing: border-box;
+    margin: 0;
+    padding: 0;
+}
+
+html {
+    font-size: 16px;
+    -webkit-font-smoothing: antialiased;
+    -moz-osx-font-smoothing: grayscale;
+}
+
+body {
+    font-family: var(--font);
+    color: var(--ink);
+    background: var(--bg);
+    min-height: 100vh;
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    padding: 2rem 1rem;
+    line-height: 1.6;
+}
+
+/* ── 容器 ───────────────────────────────────────────────── */
+.container {
+    width: 100%;
+    max-width: 520px;
+}
+
+/* ── 头部 ───────────────────────────────────────────────── */
+.header {
+    text-align: center;
+    margin-bottom: 2rem;
+}
+
+.header-icon {
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    width: 56px;
+    height: 56px;
+    border-radius: 14px;
+    background: linear-gradient(135deg, var(--accent), #d97706);
+    color: white;
+    margin-bottom: 1rem;
+    box-shadow: 0 4px 14px rgba(180, 83, 9, 0.25);
+}
+
+.header h1 {
+    font-size: 1.5rem;
+    font-weight: 700;
+    letter-spacing: -0.02em;
+    color: var(--ink);
+    margin-bottom: 0.25rem;
+}
+
+.subtitle {
+    font-size: 0.9rem;
+    color: var(--muted);
+}
+
+/* ── 表单卡片 ───────────────────────────────────────────── */
+.form {
+    background: var(--bg-card);
+    border: 1px solid var(--border);
+    border-radius: var(--radius);
+    padding: 1.75rem;
+    box-shadow: var(--shadow);
+}
+
+.form-group {
+    margin-bottom: 1.25rem;
+}
+
+.form-group:last-of-type {
+    margin-bottom: 1rem;
+}
+
+.form-group label {
+    display: flex;
+    align-items: center;
+    gap: 6px;
+    font-size: 0.85rem;
+    font-weight: 600;
+    color: var(--ink);
+    margin-bottom: 0.5rem;
+}
+
+.form-group label svg {
+    color: var(--muted);
+}
+
+.form-hint {
+    display: block;
+    font-size: 0.75rem;
+    color: var(--muted);
+    margin-top: 0.35rem;
+}
+
+/* ── 输入框 ─────────────────────────────────────────────── */
+input[type="text"] {
+    width: 100%;
+    padding: 0.65rem 0.9rem;
+    font-size: 0.9rem;
+    font-family: var(--font);
+    color: var(--ink);
+    background: var(--bg);
+    border: 1.5px solid var(--border);
+    border-radius: var(--radius-sm);
+    outline: none;
+    transition: border-color var(--transition), box-shadow var(--transition);
+}
+
+input[type="text"]::placeholder {
+    color: #b5b0a8;
+}
+
+input[type="text"]:focus {
+    border-color: var(--border-focus);
+    box-shadow: 0 0 0 3px rgba(196, 168, 130, 0.15);
+}
+
+input[type="text"].input-error {
+    border-color: var(--error);
+    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
+}
+
+/* ── 验证码行 ───────────────────────────────────────────── */
+.captcha-row {
+    display: flex;
+    gap: 10px;
+    align-items: stretch;
+}
+
+.captcha-row input {
+    flex: 1;
+    min-width: 0;
+    letter-spacing: 0.15em;
+    text-transform: uppercase;
+}
+
+.captcha-img {
+    height: 42px;
+    width: 140px;
+    border-radius: var(--radius-sm);
+    border: 1.5px solid var(--border);
+    cursor: pointer;
+    object-fit: cover;
+    transition: opacity var(--transition);
+    flex-shrink: 0;
+}
+
+.captcha-img:hover {
+    opacity: 0.85;
+}
+
+.btn-icon {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    width: 42px;
+    height: 42px;
+    border: 1.5px solid var(--border);
+    border-radius: var(--radius-sm);
+    background: var(--bg);
+    color: var(--muted);
+    cursor: pointer;
+    transition: all var(--transition);
+    flex-shrink: 0;
+}
+
+.btn-icon:hover {
+    border-color: var(--border-focus);
+    color: var(--accent);
+    background: var(--accent-light);
+}
+
+/* ── 拖拽区 ─────────────────────────────────────────────── */
+.dropzone {
+    border: 2px dashed var(--border);
+    border-radius: var(--radius);
+    padding: 2rem 1.5rem;
+    text-align: center;
+    cursor: pointer;
+    transition: all var(--transition);
+    background: var(--bg);
+}
+
+.dropzone:hover,
+.dropzone.dragover {
+    border-color: var(--accent);
+    background: var(--accent-light);
+}
+
+.dropzone.dragover {
+    transform: scale(1.01);
+}
+
+.dropzone-content {
+    pointer-events: none;
+}
+
+.dropzone-icon {
+    color: var(--muted);
+    margin-bottom: 0.5rem;
+    transition: color var(--transition);
+}
+
+.dropzone:hover .dropzone-icon,
+.dropzone.dragover .dropzone-icon {
+    color: var(--accent);
+}
+
+.dropzone-text {
+    font-size: 0.9rem;
+    color: var(--muted);
+    margin-bottom: 0.35rem;
+}
+
+.dropzone-link {
+    color: var(--accent);
+    font-weight: 600;
+    text-decoration: underline;
+    text-decoration-thickness: 1.5px;
+    text-underline-offset: 2px;
+}
+
+.dropzone-hint {
+    font-size: 0.75rem;
+    color: #b5b0a8;
+    line-height: 1.5;
+}
+
+/* ── 文件列表 ───────────────────────────────────────────── */
+.file-list {
+    margin-bottom: 1rem;
+}
+
+.file-item {
+    display: flex;
+    align-items: center;
+    gap: 10px;
+    padding: 0.6rem 0.85rem;
+    background: var(--bg);
+    border: 1px solid var(--border);
+    border-radius: var(--radius-sm);
+    margin-bottom: 6px;
+    animation: slideIn 0.25s ease;
+}
+
+@keyframes slideIn {
+    from {
+        opacity: 0;
+        transform: translateY(-8px);
+    }
+    to {
+        opacity: 1;
+        transform: translateY(0);
+    }
+}
+
+.file-item-icon {
+    flex-shrink: 0;
+    color: var(--muted);
+}
+
+.file-item-info {
+    flex: 1;
+    min-width: 0;
+}
+
+.file-item-name {
+    font-size: 0.85rem;
+    font-weight: 500;
+    color: var(--ink);
+    white-space: nowrap;
+    overflow: hidden;
+    text-overflow: ellipsis;
+}
+
+.file-item-meta {
+    font-size: 0.72rem;
+    color: var(--muted);
+    margin-top: 1px;
+}
+
+.file-item-status {
+    flex-shrink: 0;
+    font-size: 0.78rem;
+    font-weight: 600;
+}
+
+.file-item-status.status-waiting {
+    color: var(--muted);
+}
+
+.file-item-status.status-uploading {
+    color: var(--accent);
+}
+
+.file-item-status.status-done {
+    color: var(--success);
+}
+
+.file-item-status.status-error {
+    color: var(--error);
+}
+
+.file-item-remove {
+    flex-shrink: 0;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    width: 24px;
+    height: 24px;
+    border: none;
+    border-radius: 50%;
+    background: transparent;
+    color: var(--muted);
+    cursor: pointer;
+    transition: all var(--transition);
+}
+
+.file-item-remove:hover {
+    background: var(--error-bg);
+    color: var(--error);
+}
+
+/* 进度条 */
+.progress-bar {
+    width: 100%;
+    height: 3px;
+    background: var(--border);
+    border-radius: 2px;
+    margin-top: 6px;
+    overflow: hidden;
+}
+
+.progress-bar-fill {
+    height: 100%;
+    background: linear-gradient(90deg, var(--accent), #d97706);
+    border-radius: 2px;
+    transition: width 0.3s ease;
+    width: 0%;
+}
+
+/* ── 按钮 ───────────────────────────────────────────────── */
+.form-actions {
+    display: flex;
+    gap: 10px;
+}
+
+.btn {
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    gap: 8px;
+    padding: 0.7rem 1.5rem;
+    font-size: 0.9rem;
+    font-weight: 600;
+    font-family: var(--font);
+    border: none;
+    border-radius: var(--radius-sm);
+    cursor: pointer;
+    transition: all var(--transition);
+    white-space: nowrap;
+}
+
+.btn:disabled {
+    opacity: 0.5;
+    cursor: not-allowed;
+}
+
+.btn-primary {
+    flex: 1;
+    background: linear-gradient(135deg, var(--accent), #d97706);
+    color: white;
+    box-shadow: 0 2px 8px rgba(180, 83, 9, 0.2);
+}
+
+.btn-primary:hover:not(:disabled) {
+    box-shadow: 0 4px 14px rgba(180, 83, 9, 0.35);
+    transform: translateY(-1px);
+}
+
+.btn-primary:active:not(:disabled) {
+    transform: translateY(0);
+}
+
+.btn-secondary {
+    background: var(--bg);
+    color: var(--muted);
+    border: 1.5px solid var(--border);
+}
+
+.btn-secondary:hover {
+    border-color: var(--border-focus);
+    color: var(--ink);
+    background: var(--bg-hover);
+}
+
+/* ── 结果面板 ───────────────────────────────────────────── */
+.result-panel {
+    margin-top: 1.25rem;
+    animation: slideIn 0.3s ease;
+}
+
+.result-card {
+    background: var(--bg-card);
+    border: 1px solid var(--border);
+    border-radius: var(--radius);
+    padding: 1.25rem;
+    box-shadow: var(--shadow);
+}
+
+.result-header {
+    display: flex;
+    align-items: center;
+    gap: 10px;
+    margin-bottom: 0.75rem;
+}
+
+.result-icon {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    width: 36px;
+    height: 36px;
+    border-radius: 50%;
+    flex-shrink: 0;
+}
+
+.result-icon.icon-success {
+    background: var(--success-bg);
+    color: var(--success);
+}
+
+.result-icon.icon-error {
+    background: var(--error-bg);
+    color: var(--error);
+}
+
+.result-title {
+    font-size: 1rem;
+    font-weight: 700;
+}
+
+.result-title.text-success {
+    color: var(--success);
+}
+
+.result-title.text-error {
+    color: var(--error);
+}
+
+.result-detail {
+    font-size: 0.85rem;
+    color: var(--muted);
+    line-height: 1.7;
+}
+
+.result-detail strong {
+    color: var(--ink);
+    font-weight: 600;
+}
+
+.result-files {
+    margin-top: 0.75rem;
+    padding-top: 0.75rem;
+    border-top: 1px solid var(--border);
+}
+
+.result-file-item {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+    padding: 0.35rem 0;
+    font-size: 0.82rem;
+}
+
+.result-file-item svg {
+    flex-shrink: 0;
+}
+
+.result-file-item.file-success {
+    color: var(--success);
+}
+
+.result-file-item.file-error {
+    color: var(--error);
+}
+
+/* ── 弹窗 ───────────────────────────────────────────────── */
+.modal-overlay {
+    display: none;
+    position: fixed;
+    inset: 0;
+    background: rgba(0, 0, 0, 0.4);
+    backdrop-filter: blur(4px);
+    z-index: 1000;
+    align-items: center;
+    justify-content: center;
+    padding: 1rem;
+}
+
+.modal-overlay.active {
+    display: flex;
+    animation: fadeIn 0.2s ease;
+}
+
+@keyframes fadeIn {
+    from { opacity: 0; }
+    to { opacity: 1; }
+}
+
+.modal {
+    background: var(--bg-card);
+    border-radius: 14px;
+    width: 100%;
+    max-width: 380px;
+    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15), 0 4px 20px rgba(0, 0, 0, 0.08);
+    animation: modalSlideUp 0.25s ease;
+}
+
+@keyframes modalSlideUp {
+    from {
+        opacity: 0;
+        transform: translateY(20px) scale(0.97);
+    }
+    to {
+        opacity: 1;
+        transform: translateY(0) scale(1);
+    }
+}
+
+.modal-header {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    padding: 1.1rem 1.25rem 0;
+}
+
+.modal-header h3 {
+    font-size: 1.05rem;
+    font-weight: 700;
+    color: var(--ink);
+}
+
+.modal-close {
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    width: 32px;
+    height: 32px;
+    border: none;
+    border-radius: 8px;
+    background: transparent;
+    color: var(--muted);
+    cursor: pointer;
+    transition: all var(--transition);
+}
+
+.modal-close:hover {
+    background: var(--bg-hover);
+    color: var(--ink);
+}
+
+.modal-body {
+    padding: 1rem 1.25rem;
+}
+
+.modal-desc {
+    font-size: 0.85rem;
+    color: var(--muted);
+    margin-bottom: 1rem;
+}
+
+.modal-captcha-row {
+    display: flex;
+    gap: 10px;
+    align-items: center;
+    margin-bottom: 0.75rem;
+}
+
+.modal-captcha-img {
+    height: 46px;
+    flex: 1;
+    border-radius: var(--radius-sm);
+    border: 1.5px solid var(--border);
+    cursor: pointer;
+    object-fit: contain;
+    background: var(--bg);
+    transition: opacity var(--transition);
+}
+
+.modal-captcha-img:hover {
+    opacity: 0.85;
+}
+
+.modal-captcha-input {
+    width: 100%;
+    padding: 0.7rem 0.9rem;
+    font-size: 1.1rem;
+    font-family: var(--font);
+    color: var(--ink);
+    background: var(--bg);
+    border: 1.5px solid var(--border);
+    border-radius: var(--radius-sm);
+    outline: none;
+    letter-spacing: 0.2em;
+    text-transform: uppercase;
+    text-align: center;
+    transition: border-color var(--transition), box-shadow var(--transition);
+}
+
+.modal-captcha-input::placeholder {
+    letter-spacing: normal;
+    text-transform: none;
+    font-size: 0.85rem;
+    color: #b5b0a8;
+}
+
+.modal-captcha-input:focus {
+    border-color: var(--border-focus);
+    box-shadow: 0 0 0 3px rgba(196, 168, 130, 0.15);
+}
+
+.modal-error {
+    font-size: 0.8rem;
+    color: var(--error);
+    min-height: 1.2rem;
+    margin-top: 0.4rem;
+}
+
+.modal-footer {
+    display: flex;
+    gap: 10px;
+    padding: 0 1.25rem 1.25rem;
+}
+
+.modal-footer .btn {
+    flex: 1;
+    padding: 0.65rem 1rem;
+}
+
+/* ── 页脚 ───────────────────────────────────────────────── */
+.footer {
+    margin-top: 2rem;
+    text-align: center;
+    font-size: 0.78rem;
+    color: #b5b0a8;
+}
+
+/* ── 响应式 ─────────────────────────────────────────────── */
+@media (max-width: 560px) {
+    body {
+        padding: 1rem 0.75rem;
+    }
+
+    .header {
+        margin-bottom: 1rem;
+    }
+
+    .header-icon {
+        width: 40px;
+        height: 40px;
+        border-radius: 10px;
+        margin-bottom: 0.5rem;
+    }
+
+    .header-icon svg {
+        width: 22px;
+        height: 22px;
+    }
+
+    .header h1 {
+        font-size: 1.2rem;
+    }
+
+    .subtitle {
+        font-size: 0.8rem;
+    }
+
+    .form {
+        padding: 1.25rem;
+    }
+
+    .dropzone {
+        padding: 1.5rem 1rem;
+    }
+
+    .btn-icon {
+        width: 38px;
+        height: 38px;
+    }
+
+    .form-actions {
+        flex-direction: column;
+    }
+}
+
+/* ── 工具类 ─────────────────────────────────────────────── */
+.hidden {
+    display: none !important;
+}
+
+.shake {
+    animation: shake 0.4s ease;
+}
+
+@keyframes shake {
+    0%, 100% { transform: translateX(0); }
+    20%, 60% { transform: translateX(-6px); }
+    40%, 80% { transform: translateX(6px); }
+}

file-upload-site/static/js/app.js

@@ -0,0 +1,493 @@
+/**
+ * 文件上传网站 - 前端交互逻辑
+ */
+(function () {
+    'use strict';
+
+    // ── 常量 ────────────────────────────────────────────────
+    const MAX_FILE_SIZE = 20 * 1024 * 1024; // 20MB
+    const MAX_FILES = 9;
+    const ALLOWED_EXTENSIONS = ['.txt', '.doc', '.docx', '.pdf', '.rtf', '.odt', '.html', '.csv', '.xls', '.xlsx'];
+
+    // ── DOM 元素 ────────────────────────────────────────────
+    const $name = document.getElementById('name');
+    const $dropzone = document.getElementById('dropzone');
+    const $fileInput = document.getElementById('fileInput');
+    const $fileList = document.getElementById('fileList');
+    const $uploadBtn = document.getElementById('uploadBtn');
+    const $clearBtn = document.getElementById('clearBtn');
+    const $uploadForm = document.getElementById('uploadForm');
+    const $resultPanel = document.getElementById('resultPanel');
+
+    // 弹窗相关
+    const $modal = document.getElementById('captchaModal');
+    const $modalClose = document.getElementById('modalClose');
+    const $modalCancel = document.getElementById('modalCancel');
+    const $modalConfirm = document.getElementById('modalConfirm');
+    const $captchaImg = document.getElementById('captchaImg');
+    const $refreshCaptcha = document.getElementById('refreshCaptcha');
+    const $captchaInput = document.getElementById('captchaInput');
+    const $captchaError = document.getElementById('captchaError');
+
+    // ── 状态 ────────────────────────────────────────────────
+    let selectedFiles = []; // { file, id, status, error }
+    let fileIdCounter = 0;
+    let isUploading = false;
+
+    // ── 工具函数 ────────────────────────────────────────────
+    function formatSize(bytes) {
+        if (bytes < 1024) return bytes + ' B';
+        if (bytes < 1024 * 1024) return (bytes / 1024).toFixed(1) + ' KB';
+        return (bytes / (1024 * 1024)).toFixed(1) + ' MB';
+    }
+
+    function getFileExt(filename) {
+        const idx = filename.lastIndexOf('.');
+        return idx >= 0 ? filename.substring(idx).toLowerCase() : '';
+    }
+
+    function validateFile(file) {
+        const ext = getFileExt(file.name);
+        if (!ALLOWED_EXTENSIONS.includes(ext)) {
+            return '不支持的文件格式';
+        }
+        if (file.size > MAX_FILE_SIZE) {
+            return '文件超过 20MB 限制';
+        }
+        if (file.size === 0) {
+            return '文件为空';
+        }
+        return null;
+    }
+
+    // ── 弹窗控制 ────────────────────────────────────────────
+    function openModal() {
+        $captchaInput.value = '';
+        $captchaError.textContent = '';
+        refreshCaptcha();
+        $modal.classList.add('active');
+        setTimeout(() => $captchaInput.focus(), 200);
+    }
+
+    function closeModal() {
+        $modal.classList.remove('active');
+    }
+
+    function refreshCaptcha() {
+        $captchaImg.src = '/api/captcha?' + Date.now();
+        $captchaInput.value = '';
+        $captchaError.textContent = '';
+    }
+
+    // 弹窗事件绑定
+    $modalClose.addEventListener('click', closeModal);
+    $modalCancel.addEventListener('click', closeModal);
+    $captchaImg.addEventListener('click', refreshCaptcha);
+    $refreshCaptcha.addEventListener('click', refreshCaptcha);
+
+    // 点击遮罩层关闭
+    $modal.addEventListener('click', function (e) {
+        if (e.target === $modal) closeModal();
+    });
+
+    // ESC 关闭弹窗
+    document.addEventListener('keydown', function (e) {
+        if (e.key === 'Escape' && $modal.classList.contains('active')) {
+            closeModal();
+        }
+    });
+
+    // 弹窗内回车 = 确认
+    $captchaInput.addEventListener('keydown', function (e) {
+        if (e.key === 'Enter') {
+            e.preventDefault();
+            $modalConfirm.click();
+        }
+    });
+
+    // 确认上传按钮
+    $modalConfirm.addEventListener('click', function () {
+        const captchaVal = $captchaInput.value.trim();
+        if (!captchaVal) {
+            $captchaError.textContent = '请输入验证码';
+            shakeElement($captchaInput);
+            return;
+        }
+
+        const nameVal = $name.value.trim();
+        const validFiles = selectedFiles.filter(f => f.status !== 'error');
+
+        closeModal();
+        startUpload(nameVal, captchaVal, validFiles);
+    });
+
+    // ── 文件选择（点击） ────────────────────────────────────
+    $dropzone.addEventListener('click', function () {
+        if (!isUploading) {
+            $fileInput.click();
+        }
+    });
+
+    $fileInput.addEventListener('change', function () {
+        addFiles(Array.from($fileInput.files));
+        $fileInput.value = ''; // 清空以便重复选择同名文件
+    });
+
+    // ── 文件拖拽 ────────────────────────────────────────────
+    $dropzone.addEventListener('dragover', function (e) {
+        e.preventDefault();
+        if (!isUploading) {
+            $dropzone.classList.add('dragover');
+        }
+    });
+
+    $dropzone.addEventListener('dragleave', function (e) {
+        e.preventDefault();
+        $dropzone.classList.remove('dragover');
+    });
+
+    $dropzone.addEventListener('drop', function (e) {
+        e.preventDefault();
+        $dropzone.classList.remove('dragover');
+        if (!isUploading) {
+            addFiles(Array.from(e.dataTransfer.files));
+        }
+    });
+
+    // ── 添加文件到列表 ──────────────────────────────────────
+    function addFiles(files) {
+        if (isUploading) return;
+
+        for (const file of files) {
+            if (selectedFiles.length >= MAX_FILES) {
+                showToast(`单次最多上传 ${MAX_FILES} 个文件`);
+                break;
+            }
+
+            const error = validateFile(file);
+            const item = {
+                file: file,
+                id: ++fileIdCounter,
+                status: error ? 'error' : 'waiting',
+                error: error,
+                progress: 0
+            };
+            selectedFiles.push(item);
+        }
+
+        renderFileList();
+        updateButtonState();
+    }
+
+    // ── 渲染文件列表 ────────────────────────────────────────
+    function renderFileList() {
+        if (selectedFiles.length === 0) {
+            $fileList.innerHTML = '';
+            return;
+        }
+
+        $fileList.innerHTML = selectedFiles.map(item => {
+            const statusText = {
+                waiting: '等待中',
+                uploading: `${item.progress}%`,
+                done: '已完成',
+                error: item.error || '失败'
+            }[item.status];
+
+            const statusClass = {
+                waiting: 'status-waiting',
+                uploading: 'status-uploading',
+                done: 'status-done',
+                error: 'status-error'
+            }[item.status];
+
+            const iconSvg = item.status === 'done'
+                ? '<svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="#0f766e" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><polyline points="20 6 9 17 4 12"/></svg>'
+                : item.status === 'error'
+                    ? '<svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="#dc2626" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="10"/><line x1="15" y1="9" x2="9" y2="15"/><line x1="9" y1="9" x2="15" y2="15"/></svg>'
+                    : '<svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="#7a756e" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z"/><polyline points="14 2 14 8 20 8"/></svg>';
+
+            const progressBar = item.status === 'uploading'
+                ? `<div class="progress-bar"><div class="progress-bar-fill" style="width:${item.progress}%"></div></div>`
+                : '';
+
+            const removeBtn = !isUploading
+                ? `<button type="button" class="file-item-remove" data-id="${item.id}" title="移除">
+                     <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><line x1="18" y1="6" x2="6" y2="18"/><line x1="6" y1="6" x2="18" y2="18"/></svg>
+                   </button>`
+                : '';
+
+            return `
+                <div class="file-item" data-id="${item.id}">
+                    <span class="file-item-icon">${iconSvg}</span>
+                    <div class="file-item-info">
+                        <div class="file-item-name" title="${item.file.name}">${item.file.name}</div>
+                        <div class="file-item-meta">${formatSize(item.file.size)}</div>
+                        ${progressBar}
+                    </div>
+                    <span class="file-item-status ${statusClass}">${statusText}</span>
+                    ${removeBtn}
+                </div>
+            `;
+        }).join('');
+
+        // 绑定移除按钮
+        $fileList.querySelectorAll('.file-item-remove').forEach(btn => {
+            btn.addEventListener('click', function (e) {
+                e.stopPropagation();
+                const id = parseInt(this.dataset.id);
+                selectedFiles = selectedFiles.filter(f => f.id !== id);
+                renderFileList();
+                updateButtonState();
+            });
+        });
+    }
+
+    // ── 按钮状态 ────────────────────────────────────────────
+    function updateButtonState() {
+        const nameValid = $name.value.trim().length >= 2;
+        const hasFiles = selectedFiles.some(f => f.status !== 'error');
+        $uploadBtn.disabled = !nameValid || !hasFiles || isUploading;
+    }
+
+    $name.addEventListener('input', updateButtonState);
+
+    // ── 清空列表 ────────────────────────────────────────────
+    $clearBtn.addEventListener('click', function () {
+        if (isUploading) return;
+        selectedFiles = [];
+        renderFileList();
+        updateButtonState();
+        $resultPanel.innerHTML = '';
+    });
+
+    // ── 点击"开始上传" → 打开验证码弹窗 ─────────────────────
+    $uploadForm.addEventListener('submit', function (e) {
+        e.preventDefault();
+        if (isUploading) return;
+
+        // 前端校验姓名
+        const nameVal = $name.value.trim();
+        if (nameVal.length < 2) {
+            shakeElement($name);
+            return;
+        }
+
+        // 校验文件
+        const validFiles = selectedFiles.filter(f => f.status !== 'error');
+        if (validFiles.length === 0) {
+            showToast('没有可上传的文件');
+            return;
+        }
+
+        // 打开验证码弹窗
+        openModal();
+    });
+
+    // ── 执行上传 ────────────────────────────────────────────
+    function startUpload(name, captcha, files) {
+        isUploading = true;
+        $uploadBtn.disabled = true;
+        $clearBtn.disabled = true;
+        $resultPanel.innerHTML = '';
+
+        // 重置文件状态
+        files.forEach(f => {
+            f.status = 'uploading';
+            f.progress = 0;
+        });
+        renderFileList();
+
+        const formData = new FormData();
+        formData.append('name', name);
+        formData.append('captcha', captcha);
+        files.forEach(f => formData.append('files', f.file));
+
+        const xhr = new XMLHttpRequest();
+
+        // 进度事件
+        xhr.upload.addEventListener('progress', function (e) {
+            if (e.lengthComputable) {
+                const pct = Math.round((e.loaded / e.total) * 100);
+                files.forEach(f => {
+                    f.progress = pct;
+                });
+                renderFileList();
+            }
+        });
+
+        // 完成事件
+        xhr.addEventListener('load', function () {
+            isUploading = false;
+            $clearBtn.disabled = false;
+
+            if (xhr.status === 200) {
+                const data = JSON.parse(xhr.responseText);
+                handleUploadSuccess(data, files);
+            } else {
+                let errMsg = '上传失败，请重试';
+                try {
+                    const errData = JSON.parse(xhr.responseText);
+                    errMsg = errData.error || errMsg;
+                } catch (_) { /* ignore */ }
+
+                // 如果是验证码错误，重新弹窗让用户输入
+                if (errMsg.includes('验证码')) {
+                    files.forEach(f => {
+                        f.status = 'waiting';
+                        f.progress = 0;
+                    });
+                    renderFileList();
+                    updateButtonState();
+                    showToast(errMsg);
+                    // 延迟一下再弹窗，让用户看到 toast
+                    setTimeout(openModal, 600);
+                } else {
+                    handleUploadError(errMsg, files);
+                }
+            }
+
+            updateButtonState();
+        });
+
+        xhr.addEventListener('error', function () {
+            isUploading = false;
+            $clearBtn.disabled = false;
+            handleUploadError('网络错误，请检查连接后重试', files);
+            updateButtonState();
+        });
+
+        xhr.open('POST', '/api/upload');
+        xhr.send(formData);
+    }
+
+    // ── 上传成功处理 ────────────────────────────────────────
+    function handleUploadSuccess(data, files) {
+        // 更新每个文件的状态
+        data.results.forEach((result, idx) => {
+            if (idx < files.length) {
+                files[idx].status = result.success ? 'done' : 'error';
+                files[idx].error = result.success ? null : result.error;
+                files[idx].progress = 100;
+            }
+        });
+        renderFileList();
+
+        // 显示结果面板
+        const hasSuccess = data.success_count > 0;
+        const hasFail = data.fail_count > 0;
+
+        let resultHtml = `
+            <div class="result-card">
+                <div class="result-header">
+                    <div class="result-icon ${hasSuccess ? 'icon-success' : 'icon-error'}">
+                        ${hasSuccess
+                            ? '<svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><polyline points="20 6 9 17 4 12"/></svg>'
+                            : '<svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="10"/><line x1="15" y1="9" x2="9" y2="15"/><line x1="9" y1="9" x2="15" y2="15"/></svg>'
+                        }
+                    </div>
+                    <span class="result-title ${hasSuccess ? 'text-success' : 'text-error'}">
+                        ${hasSuccess && !hasFail ? '上传成功' : hasSuccess ? '部分上传成功' : '上传失败'}
+                    </span>
+                </div>
+                <div class="result-detail">
+                    ${hasSuccess ? `<p>已上传 <strong>${data.success_count}</strong> 个文件至 <strong>${data.storage_path}</strong></p>` : ''}
+                    ${hasFail ? `<p>${data.fail_count} 个文件上传失败</p>` : ''}
+                    ${hasSuccess ? `<p>该目录累计文件数：<strong>${data.total_files}</strong></p>` : ''}
+                </div>
+        `;
+
+        // 文件详情
+        if (data.results.length > 0) {
+            resultHtml += '<div class="result-files">';
+            data.results.forEach(r => {
+                if (r.success) {
+                    resultHtml += `
+                        <div class="result-file-item file-success">
+                            <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round"><polyline points="20 6 9 17 4 12"/></svg>
+                            <span>${r.filename} → ${r.storage_filename}</span>
+                        </div>`;
+                } else {
+                    resultHtml += `
+                        <div class="result-file-item file-error">
+                            <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="10"/><line x1="15" y1="9" x2="9" y2="15"/><line x1="9" y1="9" x2="15" y2="15"/></svg>
+                            <span>${r.filename} — ${r.error}</span>
+                        </div>`;
+                }
+            });
+            resultHtml += '</div>';
+        }
+
+        resultHtml += '</div>';
+        $resultPanel.innerHTML = resultHtml;
+    }
+
+    // ── 上传失败处理 ────────────────────────────────────────
+    function handleUploadError(message, files) {
+        files.forEach(f => {
+            f.status = 'error';
+            f.error = message;
+        });
+        renderFileList();
+
+        $resultPanel.innerHTML = `
+            <div class="result-card">
+                <div class="result-header">
+                    <div class="result-icon icon-error">
+                        <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><circle cx="12" cy="12" r="10"/><line x1="15" y1="9" x2="9" y2="15"/><line x1="9" y1="9" x2="15" y2="15"/></svg>
+                    </div>
+                    <span class="result-title text-error">上传失败</span>
+                </div>
+                <div class="result-detail">
+                    <p>${message}</p>
+                </div>
+            </div>
+        `;
+    }
+
+    // ── 抖动效果 ────────────────────────────────────────────
+    function shakeElement(el) {
+        el.classList.add('shake', 'input-error');
+        setTimeout(() => {
+            el.classList.remove('shake');
+        }, 400);
+        setTimeout(() => {
+            el.classList.remove('input-error');
+        }, 2000);
+    }
+
+    // ── Toast 提示 ──────────────────────────────────────────
+    function showToast(message) {
+        const existing = document.querySelector('.toast');
+        if (existing) existing.remove();
+
+        const toast = document.createElement('div');
+        toast.className = 'toast';
+        toast.textContent = message;
+        toast.style.cssText = `
+            position: fixed;
+            top: 20px;
+            left: 50%;
+            transform: translateX(-50%);
+            background: #1a1816;
+            color: white;
+            padding: 0.6rem 1.2rem;
+            border-radius: 8px;
+            font-size: 0.85rem;
+            font-weight: 500;
+            z-index: 1100;
+            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
+        `;
+        document.body.appendChild(toast);
+
+        setTimeout(() => {
+            toast.style.opacity = '0';
+            toast.style.transition = 'opacity 0.3s';
+            setTimeout(() => toast.remove(), 300);
+        }, 2500);
+    }
+
+    // ── 初始化 ──────────────────────────────────────────────
+    updateButtonState();
+
+})();

file-upload-site/templates/index.html

@@ -0,0 +1,132 @@
+<!DOCTYPE html>
+<html lang="zh-CN">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>文字稿上传</title>
+    <link rel="stylesheet" href="/static/css/style.css">
+</head>
+<body>
+    <div class="container">
+        <!-- 头部 -->
+        <header class="header">
+            <div class="header-icon">
+                <svg width="32" height="32" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+                    <path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"/>
+                    <polyline points="17 8 12 3 7 8"/>
+                    <line x1="12" y1="3" x2="12" y2="15"/>
+                </svg>
+            </div>
+            <h1>文字稿上传</h1>
+            <p class="subtitle">上传腾讯会议文字稿，自动归档到对应目录</p>
+        </header>
+
+        <!-- 上传表单 -->
+        <form id="uploadForm" class="form">
+            <!-- 姓名输入 -->
+            <div class="form-group">
+                <label for="name">
+                    <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+                        <path d="M20 21v-2a4 4 0 0 0-4-4H8a4 4 0 0 0-4 4v2"/>
+                        <circle cx="12" cy="7" r="4"/>
+                    </svg>
+                    上传者姓名
+                </label>
+                <input type="text" id="name" name="name" placeholder="请输入您的姓名" maxlength="20" autocomplete="off">
+                <span class="form-hint">2-20 个字符，支持中文、英文、数字和下划线</span>
+            </div>
+
+            <!-- 文件拖拽区 -->
+            <div class="form-group">
+                <label>
+                    <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+                        <path d="M14 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V8z"/>
+                        <polyline points="14 2 14 8 20 8"/>
+                        <line x1="12" y1="18" x2="12" y2="12"/>
+                        <line x1="9" y1="15" x2="15" y2="15"/>
+                    </svg>
+                    选择文件
+                </label>
+                <div id="dropzone" class="dropzone">
+                    <input type="file" id="fileInput" multiple hidden>
+                    <div class="dropzone-content">
+                        <div class="dropzone-icon">
+                            <svg width="40" height="40" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round">
+                                <path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"/>
+                                <polyline points="17 8 12 3 7 8"/>
+                                <line x1="12" y1="3" x2="12" y2="15"/>
+                            </svg>
+                        </div>
+                        <p class="dropzone-text">拖拽文件到此处，或 <span class="dropzone-link">点击选择</span></p>
+                        <p class="dropzone-hint">支持 .txt .doc .docx .pdf .rtf .odt 等文字类文档<br>单文件 ≤ 20MB，单次最多 9 个文件</p>
+                    </div>
+                </div>
+            </div>
+
+            <!-- 文件列表 -->
+            <div id="fileList" class="file-list"></div>
+
+            <!-- 操作按钮 -->
+            <div class="form-actions">
+                <button type="submit" id="uploadBtn" class="btn btn-primary" disabled>
+                    <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+                        <path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"/>
+                        <polyline points="17 8 12 3 7 8"/>
+                        <line x1="12" y1="3" x2="12" y2="15"/>
+                    </svg>
+                    开始上传
+                </button>
+                <button type="button" id="clearBtn" class="btn btn-secondary">
+                    <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+                        <polyline points="3 6 5 6 21 6"/>
+                        <path d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6m3 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2"/>
+                    </svg>
+                    清空列表
+                </button>
+            </div>
+        </form>
+
+        <!-- 上传结果 -->
+        <div id="resultPanel" class="result-panel"></div>
+    </div>
+
+    <!-- 页脚 -->
+    <footer class="footer">
+        <p>文件上传后自动归档至 NAS 对应目录</p>
+    </footer>
+
+    <!-- 验证码弹窗 -->
+    <div id="captchaModal" class="modal-overlay">
+        <div class="modal">
+            <div class="modal-header">
+                <h3>安全验证</h3>
+                <button type="button" id="modalClose" class="modal-close">
+                    <svg width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+                        <line x1="18" y1="6" x2="6" y2="18"/><line x1="6" y1="6" x2="18" y2="18"/>
+                    </svg>
+                </button>
+            </div>
+            <div class="modal-body">
+                <p class="modal-desc">请输入图中验证码以继续上传</p>
+                <div class="modal-captcha-row">
+                    <img id="captchaImg" class="modal-captcha-img" src="/api/captcha" alt="验证码" title="点击刷新">
+                    <button type="button" id="refreshCaptcha" class="btn-icon" title="换一张">
+                        <svg width="18" height="18" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+                            <polyline points="23 4 23 10 17 10"/>
+                            <path d="M20.49 15a9 9 0 1 1-2.12-9.36L23 10"/>
+                        </svg>
+                    </button>
+                </div>
+                <input type="text" id="captchaInput" class="modal-captcha-input" placeholder="请输入验证码" maxlength="4" autocomplete="off">
+                <p id="captchaError" class="modal-error"></p>
+            </div>
+            <div class="modal-footer">
+                <button type="button" id="modalCancel" class="btn btn-secondary">取消</button>
+                <button type="button" id="modalConfirm" class="btn btn-primary">确认上传</button>
+            </div>
+        </div>
+    </div>
+
+    <script src="/static/js/app.js"></script>
+</body>
+</html>