fix: 修复配额说明重复和undefined问题

- 在editStorageForm中初始化oss_storage_quota_value和oss_quota_unit - 删除重复的旧配额说明块，保留新的当前配额设置显示 Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
2026-01-22 19:39:53 +08:00
commit 4350113979
7649 changed files with 897277 additions and 0 deletions
--- a/backend/.dockerignore
+++ b/backend/.dockerignore
@@ -0,0 +1,46 @@
+# 依赖目录
+node_modules
+
+# 数据目录
+data/
+storage/
+
+# 环境配置
+.env
+.env.local
+.env.*.local
+
+# 日志
+*.log
+npm-debug.log*
+
+# 编辑器
+.idea/
+.vscode/
+*.swp
+*.swo
+*~
+
+# 操作系统
+.DS_Store
+Thumbs.db
+
+# 测试和开发文件
+*.test.js
+*.spec.js
+test/
+tests/
+coverage/
+
+# 文档
+*.md
+!README.md
+
+# Git
+.git
+.gitignore
+
+# 临时文件
+*.tmp
+*.temp
+.cache/
--- a/backend/.env
+++ b/backend/.env
@@ -0,0 +1,53 @@
+# 管理员账号
+ADMIN_USERNAME=237899745
+ADMIN_PASSWORD=wwww1234
+
+# JWT密钥
+JWT_SECRET=o0RMdnY2XnPXdr4CI7oEuh6XNJPe4qR+m2/+TwiZzuA=
+
+# Session密钥（用于会话管理）
+SESSION_SECRET=205696c626f70c8e292e7ca76833ae5ec04c097e8d3d59cc08f746563dd7bf48
+
+# 数据库路径
+DATABASE_PATH=./data/database.db
+
+# 存储目录
+STORAGE_ROOT=./storage
+
+# 服务端口
+PORT=40001
+
+# 环境
+NODE_ENV=production
+
+# 强制HTTPS（生产环境建议开启）
+ENFORCE_HTTPS=true
+
+# CORS 跨域配置
+# 允许访问的前端域名（多个用逗号分隔）
+# 生产环境必须配置具体域名，开发环境可留空
+ALLOWED_ORIGINS=https://cs.workyai.cn
+
+# Cookie 安全配置
+# HTTPS 环境必须设置为 true
+COOKIE_SECURE=true
+
+# 信任代理配置（重要安全配置）
+# 在 Nginx/CDN 后部署时必须配置，否则无法正确识别客户端 IP 和协议
+# 配置选项：
+#   - false: 不信任代理（直接暴露，默认值）
+#   - 1: 信任前 1 跳代理（单层 Nginx，推荐）
+#   - 2: 信任前 2 跳代理（CDN + Nginx）
+#   - loopback: 仅信任本地回环地址
+# 警告：不要设置为 true，这会信任所有代理，存在 IP/协议伪造风险！
+TRUST_PROXY=1
+
+# 公开端口（nginx监听的端口，用于生成分享链接）
+# 如果使用标准端口(80/443)或未配置，分享链接将不包含端口号
+PUBLIC_PORT=80
+
+# 加密密钥（用于加密OSS等敏感信息）
+ENCRYPTION_KEY=95a5679636f7fd98f040d0bb54bd95edc035dba610cd6ebb5998181926783a09
+
+# CSRF 保护（生产环境强烈建议开启）
+ENABLE_CSRF=true
--- a/backend/.env.example
+++ b/backend/.env.example
@@ -0,0 +1,168 @@
+# ============================================
+# 玩玩云 - 环境配置文件示例
+# ============================================
+# 
+# 使用说明:
+# 1. 复制此文件为 .env
+# 2. 根据实际情况修改配置值
+# 3. ⚠️ 生产环境必须修改默认密码和密钥
+#
+
+# ============================================
+# 服务器配置
+# ============================================
+
+# 服务端口
+PORT=40001
+
+# 运行环境（production 或 development）
+NODE_ENV=production
+
+# 强制HTTPS访问（生产环境建议开启）
+# 设置为 true 时，仅接受 HTTPS 访问
+ENFORCE_HTTPS=false
+
+# 公开访问端口（nginx监听的端口，用于生成分享链接）
+# 标准端口(80/443)可不配置
+PUBLIC_PORT=80
+
+# ============================================
+# 安全配置
+# ============================================
+
+# 加密密钥（必须配置！）
+# 用于加密 OSS Access Key Secret 等敏感数据
+# 生成方法: node -e "console.log(require('crypto').randomBytes(32).toString('hex'))"
+ENCRYPTION_KEY=your-encryption-key-please-change-this
+
+# JWT密钥（必须修改！）
+# 生成方法: openssl rand -base64 32
+# 或使用: node -e "console.log(require('crypto').randomBytes(32).toString('hex'))"
+JWT_SECRET=your-secret-key-PLEASE-CHANGE-THIS-IN-PRODUCTION
+
+# Refresh Token 密钥（可选，默认使用 JWT_SECRET 派生）
+# 建议生产环境设置独立的密钥
+# REFRESH_SECRET=your-refresh-secret-key
+
+# 管理员账号配置（首次启动时创建）
+ADMIN_USERNAME=admin
+ADMIN_PASSWORD=admin123
+
+# ============================================
+# CORS 跨域配置（重要！）
+# ============================================
+
+# 允许访问的前端域名
+# 
+# 格式说明:
+#   - 单个域名: https://yourdomain.com
+#   - 多个域名: https://domain1.com,https://domain2.com
+#   - 开发环境: 留空或设置为 * （不安全，仅开发使用）
+#
+# ⚠️ 生产环境安全要求:
+#   1. 必须配置具体的域名，不要使用 *
+#   2. 必须包含协议 (http:// 或 https://)
+#   3. 如果使用非标准端口，需要包含端口号
+#
+# 示例:
+#   ALLOWED_ORIGINS=https://pan.example.com
+#   ALLOWED_ORIGINS=https://pan.example.com,https://admin.example.com
+#   ALLOWED_ORIGINS=http://localhost:8080  # 开发环境
+#
+ALLOWED_ORIGINS=
+
+# Cookie 安全配置
+# 使用 HTTPS 时必须设置为 true
+# HTTP 环境设置为 false
+COOKIE_SECURE=false
+
+# CSRF 防护配置
+# 启用 CSRF 保护（建议生产环境开启）
+# 前端会自动从 Cookie 读取 csrf_token 并在请求头中发送
+ENABLE_CSRF=false
+
+# ============================================
+# 反向代理配置（Nginx/Cloudflare等）
+# ============================================
+
+# 信任代理配置
+#
+# 配置选项:
+#   - false: 不信任代理（默认，直接暴露到公网时使用）
+#   - 1: 信任第1跳代理（推荐，单层Nginx反向代理时使用）
+#   - 2: 信任前2跳代理（Cloudflare + Nginx）
+#   - loopback: 仅信任本地回环地址
+#   - true: 信任所有代理（不推荐，易被伪造IP）
+#
+# ⚠️ 重要: 如果使用 Nginx 反向代理并开启 ENFORCE_HTTPS=true
+#          必须配置 TRUST_PROXY=1，否则后端无法正确识别HTTPS请求
+#
+TRUST_PROXY=false
+
+# ============================================
+# 存储配置
+# ============================================
+
+# 数据库路径
+DATABASE_PATH=./data/database.db
+
+# 本地存储根目录（本地存储模式使用）
+STORAGE_ROOT=./storage
+
+# ============================================
+# OSS 云存储配置（可选）
+# ============================================
+#
+# 说明: 用户可以在 Web 界面配置自己的 OSS 存储
+#       支持：阿里云 OSS、腾讯云 COS、AWS S3
+#       此处配置仅作为全局默认值（通常不需要配置）
+#
+
+# OSS_PROVIDER=aliyun          # 服务商: aliyun/tencent/aws
+# OSS_REGION=oss-cn-hangzhou   # 地域
+# OSS_ACCESS_KEY_ID=your-key   # Access Key ID
+# OSS_ACCESS_KEY_SECRET=secret # Access Key Secret
+# OSS_BUCKET=your-bucket       # 存储桶名称
+# OSS_ENDPOINT=                # 自定义 Endpoint（可选）
+
+# ============================================
+# Session 配置
+# ============================================
+
+# Session 密钥（用于验证码等功能）
+# 默认使用随机生成的密钥
+# SESSION_SECRET=your-session-secret
+
+# Session 过期时间（毫秒），默认 30 分钟
+# SESSION_MAX_AGE=1800000
+
+# ============================================
+# 开发调试配置
+# ============================================
+
+# 日志级别 (error, warn, info, debug)
+# LOG_LEVEL=info
+
+# 是否启用调试模式
+# DEBUG=false
+
+# ============================================
+# 注意事项
+# ============================================
+#
+# 1. 生产环境必须修改以下配置:
+#    - ENCRYPTION_KEY: 用于加密敏感数据（64位十六进制）
+#    - JWT_SECRET: 使用强随机密钥（64位十六进制）
+#    - ADMIN_PASSWORD: 修改默认密码
+#    - ALLOWED_ORIGINS: 配置具体域名
+#
+# 2. 使用 HTTPS 时:
+#    - ENFORCE_HTTPS=true
+#    - COOKIE_SECURE=true
+#    - TRUST_PROXY=1 (如使用反向代理)
+#
+# 3. 配置优先级:
+#    环境变量 > .env 文件 > 默认值
+#
+# 4. 密钥生成命令:
+#    node -e "console.log(require('crypto').randomBytes(32).toString('hex'))"
--- a/backend/Dockerfile
+++ b/backend/Dockerfile
@@ -0,0 +1,28 @@
+FROM node:20-alpine
+
+WORKDIR /app
+
+# 安装编译工具和健康检查所需的 wget
+RUN apk add --no-cache python3 make g++ wget
+
+# 复制 package 文件
+COPY package*.json ./
+
+# 安装依赖
+RUN npm install --production
+
+# 复制应用代码
+COPY . .
+
+# 创建数据目录
+RUN mkdir -p /app/data /app/storage
+
+# 暴露端口
+EXPOSE 40001
+
+# 健康检查
+HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
+    CMD wget --spider -q http://localhost:40001/api/health || exit 1
+
+# 启动应用
+CMD ["node", "server.js"]
--- a/backend/auth.js
+++ b/backend/auth.js
@@ -0,0 +1,314 @@
+const jwt = require('jsonwebtoken');
+const crypto = require('crypto');
+const { UserDB } = require('./database');
+const { decryptSecret } = require('./utils/encryption');
+
+// JWT密钥（必须在环境变量中设置）
+const JWT_SECRET = process.env.JWT_SECRET || 'your-secret-key-change-in-production';
+// Refresh Token密钥（使用不同的密钥）
+const REFRESH_SECRET = process.env.REFRESH_SECRET || JWT_SECRET + '-refresh';
+
+// Token有效期配置
+const ACCESS_TOKEN_EXPIRES = '2h';    // Access token 2小时
+const REFRESH_TOKEN_EXPIRES = '7d';   // Refresh token 7天
+
+// 安全检查：验证JWT密钥配置
+const DEFAULT_SECRETS = [
+  'your-secret-key-change-in-production',
+  'your-secret-key-change-in-production-PLEASE-CHANGE-THIS'
+];
+
+// 安全修复：增强 JWT_SECRET 验证逻辑
+if (DEFAULT_SECRETS.includes(JWT_SECRET)) {
+  const errorMsg = `
+╔═══════════════════════════════════════════════════════════════╗
+║                    ⚠️  安全警告  ⚠️                            ║
+╠═══════════════════════════════════════════════════════════════╣
+║  JWT_SECRET 使用默认值，存在严重安全风险！                    ║
+║                                                               ║
+║  请立即设置环境变量 JWT_SECRET                                ║
+║  生成随机密钥:                                                ║
+║  node -e "console.log(require('crypto').randomBytes(32).toString('hex'))"
+║                                                               ║
+║  在 backend/.env 文件中设置:                                  ║
+║  JWT_SECRET=你生成的随机密钥                                  ║
+╚═══════════════════════════════════════════════════════════════╝
+  `;
+
+  // 安全修复：无论环境如何，使用默认 JWT_SECRET 都拒绝启动
+  console.error(errorMsg);
+  throw new Error('使用默认 JWT_SECRET 存在严重安全风险，服务无法启动！');
+}
+
+// 验证 JWT_SECRET 长度（至少 32 字节/64个十六进制字符）
+if (JWT_SECRET.length < 32) {
+  const errorMsg = `
+╔═══════════════════════════════════════════════════════════════╗
+║                    ⚠️  配置错误  ⚠️                            ║
+╠═══════════════════════════════════════════════════════════════╣
+║  JWT_SECRET 长度不足！                                        ║
+║                                                               ║
+║  要求: 至少 32 字节                                           ║
+║  当前长度: ${JWT_SECRET.length} 字节                           ║
+║                                                               ║
+║  生成安全的随机密钥:                                          ║
+║  node -e "console.log(require('crypto').randomBytes(32).toString('hex'))"
+╚═══════════════════════════════════════════════════════════════╝
+  `;
+  console.error(errorMsg);
+  throw new Error('JWT_SECRET 长度不足，服务无法启动！');
+}
+
+console.log('[安全] ✓ JWT密钥验证通过');
+
+// 生成Access Token（短期）
+function generateToken(user) {
+  return jwt.sign(
+    {
+      id: user.id,
+      username: user.username,
+      is_admin: user.is_admin,
+      type: 'access'
+    },
+    JWT_SECRET,
+    { expiresIn: ACCESS_TOKEN_EXPIRES }
+  );
+}
+
+// 生成Refresh Token（长期）
+function generateRefreshToken(user) {
+  return jwt.sign(
+    {
+      id: user.id,
+      type: 'refresh',
+      // 添加随机标识，使每次生成的refresh token不同
+      jti: crypto.randomBytes(16).toString('hex')
+    },
+    REFRESH_SECRET,
+    { expiresIn: REFRESH_TOKEN_EXPIRES }
+  );
+}
+
+// 验证Refresh Token并返回新的Access Token
+function refreshAccessToken(refreshToken) {
+  try {
+    const decoded = jwt.verify(refreshToken, REFRESH_SECRET);
+
+    if (decoded.type !== 'refresh') {
+      return { success: false, message: '无效的刷新令牌类型' };
+    }
+
+    const user = UserDB.findById(decoded.id);
+
+    if (!user) {
+      return { success: false, message: '用户不存在' };
+    }
+
+    if (user.is_banned) {
+      return { success: false, message: '账号已被封禁' };
+    }
+
+    if (!user.is_active) {
+      return { success: false, message: '账号未激活' };
+    }
+
+    // 生成新的access token
+    const newAccessToken = generateToken(user);
+
+    return {
+      success: true,
+      token: newAccessToken,
+      user: {
+        id: user.id,
+        username: user.username,
+        is_admin: user.is_admin
+      }
+    };
+  } catch (error) {
+    if (error.name === 'TokenExpiredError') {
+      return { success: false, message: '刷新令牌已过期，请重新登录' };
+    }
+    return { success: false, message: '无效的刷新令牌' };
+  }
+}
+
+// 验证Token中间件
+function authMiddleware(req, res, next) {
+  // 从请求头或HttpOnly Cookie获取token（不再接受URL参数以避免泄露）
+  const token = req.headers.authorization?.replace('Bearer ', '') || req.cookies?.token;
+
+  if (!token) {
+    return res.status(401).json({
+      success: false,
+      message: '未提供认证令牌'
+    });
+  }
+
+  try {
+    const decoded = jwt.verify(token, JWT_SECRET);
+    const user = UserDB.findById(decoded.id);
+
+    if (!user) {
+      return res.status(401).json({
+        success: false,
+        message: '用户不存在'
+      });
+    }
+
+    if (user.is_banned) {
+      return res.status(403).json({
+        success: false,
+        message: '账号已被封禁'
+      });
+    }
+
+    if (!user.is_active) {
+      return res.status(403).json({
+        success: false,
+        message: '账号未激活'
+      });
+    }
+
+    // 将用户信息附加到请求对象（包含所有存储相关字段）
+    req.user = {
+      id: user.id,
+      username: user.username,
+      email: user.email,
+      is_admin: user.is_admin,
+      // OSS存储字段（v3.0新增）
+      has_oss_config: user.has_oss_config || 0,
+      oss_provider: user.oss_provider,
+      oss_region: user.oss_region,
+      oss_access_key_id: user.oss_access_key_id,
+      // 安全修复：解密 OSS Access Key Secret（如果存在）
+      oss_access_key_secret: user.oss_access_key_secret ? decryptSecret(user.oss_access_key_secret) : null,
+      oss_bucket: user.oss_bucket,
+      oss_endpoint: user.oss_endpoint,
+      // 存储相关字段
+      storage_permission: user.storage_permission || 'oss_only',
+      current_storage_type: user.current_storage_type || 'oss',
+      local_storage_quota: user.local_storage_quota || 1073741824,
+      local_storage_used: user.local_storage_used || 0,
+      // 主题偏好
+      theme_preference: user.theme_preference || null
+    };
+
+    next();
+  } catch (error) {
+    if (error.name === 'TokenExpiredError') {
+      return res.status(401).json({
+        success: false,
+        message: '令牌已过期'
+      });
+    }
+
+    return res.status(401).json({
+      success: false,
+      message: '无效的令牌'
+    });
+  }
+}
+
+// 管理员权限中间件
+function adminMiddleware(req, res, next) {
+  if (!req.user || !req.user.is_admin) {
+    return res.status(403).json({
+      success: false,
+      message: '需要管理员权限'
+    });
+  }
+  next();
+}
+
+/**
+ * 管理员敏感操作二次验证中间件
+ *
+ * 要求管理员重新输入密码才能执行敏感操作
+ * 防止会话劫持后的非法操作
+ *
+ * @example
+ * app.delete('/api/admin/users/:id',
+ *   authMiddleware,
+ *   adminMiddleware,
+ *   requirePasswordConfirmation,
+ *   async (req, res) => { ... }
+ * );
+ */
+function requirePasswordConfirmation(req, res, next) {
+  const { password } = req.body;
+
+  // 检查是否提供了密码
+  if (!password) {
+    return res.status(400).json({
+      success: false,
+      message: '执行此操作需要验证密码',
+      require_password: true
+    });
+  }
+
+  // 验证密码长度（防止空密码）
+  if (password.length < 6) {
+    return res.status(400).json({
+      success: false,
+      message: '密码格式错误'
+    });
+  }
+
+  // 从数据库重新获取用户信息（不依赖 req.user 中的数据）
+  const user = UserDB.findById(req.user.id);
+
+  if (!user) {
+    return res.status(404).json({
+      success: false,
+      message: '用户不存在'
+    });
+  }
+
+  // 验证密码
+  const isPasswordValid = UserDB.verifyPassword(password, user.password);
+
+  if (!isPasswordValid) {
+    // 记录安全日志：密码验证失败
+    SystemLogDB = require('./database').SystemLogDB;
+    SystemLogDB.log({
+      level: SystemLogDB.LEVELS.WARN,
+      category: SystemLogDB.CATEGORIES.SECURITY,
+      action: 'admin_password_verification_failed',
+      message: '管理员敏感操作密码验证失败',
+      userId: req.user.id,
+      username: req.user.username,
+      ipAddress: req.ip,
+      userAgent: req.get('user-agent'),
+      details: {
+        endpoint: req.path,
+        method: req.method
+      }
+    });
+
+    return res.status(403).json({
+      success: false,
+      message: '密码验证失败，操作已拒绝'
+    });
+  }
+
+  // 密码验证成功，继续执行
+  next();
+}
+
+// 检查JWT密钥是否安全
+function isJwtSecretSecure() {
+  return !DEFAULT_SECRETS.includes(JWT_SECRET) && JWT_SECRET.length >= 32;
+}
+
+module.exports = {
+  JWT_SECRET,
+  generateToken,
+  generateRefreshToken,
+  refreshAccessToken,
+  authMiddleware,
+  adminMiddleware,
+  requirePasswordConfirmation, // 导出二次验证中间件
+  isJwtSecretSecure,
+  ACCESS_TOKEN_EXPIRES,
+  REFRESH_TOKEN_EXPIRES
+};
--- a/backend/backup.bat
+++ b/backend/backup.bat
@@ -0,0 +1,52 @@
+@echo off
+chcp 65001 >nul
+echo ========================================
+echo   数据库备份工具
+echo ========================================
+echo.
+
+cd /d %~dp0
+
+REM 创建备份目录
+if not exist backup mkdir backup
+
+REM 生成时间戳
+set YEAR=%date:~0,4%
+set MONTH=%date:~5,2%
+set DAY=%date:~8,2%
+set HOUR=%time:~0,2%
+set MINUTE=%time:~3,2%
+set SECOND=%time:~6,2%
+
+REM 去掉小时前面的空格
+if "%HOUR:~0,1%" == " " set HOUR=0%HOUR:~1,1%
+
+set TIMESTAMP=%YEAR%%MONTH%%DAY%_%HOUR%%MINUTE%%SECOND%
+
+REM 备份数据库
+copy ftp-manager.db backup\ftp-manager-%TIMESTAMP%.db >nul
+
+if %errorlevel% == 0 (
+    echo [成功] 备份完成！
+    echo 文件: backup\ftp-manager-%TIMESTAMP%.db
+
+    REM 获取文件大小
+    for %%A in (backup\ftp-manager-%TIMESTAMP%.db) do echo 大小: %%~zA 字节
+) else (
+    echo [错误] 备份失败！
+)
+
+echo.
+
+REM 清理30天前的备份
+echo 清理30天前的旧备份...
+forfiles /P backup /M ftp-manager-*.db /D -30 /C "cmd /c del @path" 2>nul
+if %errorlevel% == 0 (
+    echo [成功] 旧备份已清理
+) else (
+    echo [提示] 没有需要清理的旧备份
+)
+
+echo.
+echo ========================================
+pause
--- a/backend/check_expire.sql
+++ b/backend/check_expire.sql
@@ -0,0 +1,19 @@
+SELECT 
+  share_code,
+  substr(share_path, 1, 30) as path,
+  created_at,
+  expires_at,
+  datetime('now') as current_time,
+  CASE 
+    WHEN expires_at IS NULL THEN '永久有效'
+    WHEN expires_at > datetime('now') THEN '未过期'
+    ELSE '已过期'
+  END as status,
+  CASE 
+    WHEN expires_at IS NOT NULL AND expires_at > datetime('now') THEN '通过'
+    WHEN expires_at IS NULL THEN '通过'
+    ELSE '拦截'
+  END as findByCode_result
+FROM shares
+ORDER BY created_at DESC
+LIMIT 10;
--- a/backend/data/.gitkeep
+++ b/backend/data/.gitkeep
--- a/backend/data/database.db
+++ b/backend/data/database.db
--- a/backend/data/database.db-shm
+++ b/backend/data/database.db-shm
--- a/backend/data/database.db-wal
+++ b/backend/data/database.db-wal
--- a/backend/database.js
+++ b/backend/database.js
--- a/backend/fix_expires_at_format.js
+++ b/backend/fix_expires_at_format.js
@@ -0,0 +1,34 @@
+const { db } = require('./database');
+
+console.log('开始修复 expires_at 格式...\n');
+
+// 查找所有有过期时间的分享
+const shares = db.prepare(`
+  SELECT id, share_code, expires_at
+  FROM shares
+  WHERE expires_at IS NOT NULL
+`).all();
+
+console.log(`找到 ${shares.length} 条需要修复的记录\n`);
+
+let fixed = 0;
+const updateStmt = db.prepare('UPDATE shares SET expires_at = ? WHERE id = ?');
+
+shares.forEach(share => {
+  const oldFormat = share.expires_at;
+  
+  // 如果是ISO格式(包含T和Z),需要转换
+  if (oldFormat.includes('T') || oldFormat.includes('Z')) {
+    // 转换为 SQLite datetime 格式: YYYY-MM-DD HH:MM:SS
+    const newFormat = oldFormat.replace('T', ' ').replace(/\.\d+Z$/, '');
+    
+    updateStmt.run(newFormat, share.id);
+    fixed++;
+    
+    console.log(`✓ 修复分享 ${share.share_code}:`);
+    console.log(`  旧格式: ${oldFormat}`);
+    console.log(`  新格式: ${newFormat}\n`);
+  }
+});
+
+console.log(`\n修复完成! 共修复 ${fixed} 条记录`);
--- a/backend/node_modules/.bin/bcrypt
+++ b/backend/node_modules/.bin/bcrypt
@@ -0,0 +1 @@
+../bcryptjs/bin/bcrypt
--- a/backend/node_modules/.bin/crc32
+++ b/backend/node_modules/.bin/crc32
@@ -0,0 +1 @@
+../crc-32/bin/crc32.njs
--- a/backend/node_modules/.bin/fxparser
+++ b/backend/node_modules/.bin/fxparser
@@ -0,0 +1 @@
+../fast-xml-parser/src/cli/cli.js
--- a/backend/node_modules/.bin/glob
+++ b/backend/node_modules/.bin/glob
@@ -0,0 +1 @@
+../glob/dist/esm/bin.mjs
--- a/backend/node_modules/.bin/mime
+++ b/backend/node_modules/.bin/mime
@@ -0,0 +1 @@
+../mime/cli.js
--- a/backend/node_modules/.bin/mkdirp
+++ b/backend/node_modules/.bin/mkdirp
@@ -0,0 +1 @@
+../mkdirp/bin/cmd.js
--- a/backend/node_modules/.bin/node-which
+++ b/backend/node_modules/.bin/node-which
@@ -0,0 +1 @@
+../which/bin/node-which
--- a/backend/node_modules/.bin/ot
+++ b/backend/node_modules/.bin/ot
@@ -0,0 +1 @@
+../opentype.js/bin/ot
--- a/backend/node_modules/.bin/prebuild-install
+++ b/backend/node_modules/.bin/prebuild-install
@@ -0,0 +1 @@
+../prebuild-install/bin.js
--- a/backend/node_modules/.bin/rc
+++ b/backend/node_modules/.bin/rc
@@ -0,0 +1 @@
+../rc/cli.js
--- a/backend/node_modules/.bin/semver
+++ b/backend/node_modules/.bin/semver
@@ -0,0 +1 @@
+../semver/bin/semver.js
--- a/backend/node_modules/.package-lock.json
+++ b/backend/node_modules/.package-lock.json
--- a/backend/node_modules/@aws-crypto/crc32/CHANGELOG.md
+++ b/backend/node_modules/@aws-crypto/crc32/CHANGELOG.md
@@ -0,0 +1,100 @@
+# Change Log
+
+All notable changes to this project will be documented in this file.
+See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
+
+# [5.2.0](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v5.1.0...v5.2.0) (2023-10-16)
+
+### Features
+
+- support ESM artifacts in all packages ([#752](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/752)) ([e930ffb](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/e930ffba5cfef66dd242049e7d514ced232c1e3b))
+
+# [5.1.0](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v5.0.0...v5.1.0) (2023-09-22)
+
+### Bug Fixes
+
+- Update tsc to 2.x ([#735](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/735)) ([782e0de](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/782e0de9f5fef41f694130580a69d940894b6b8c))
+
+### Features
+
+- Use @smithy/util-utf8 ([#730](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/730)) ([00fb851](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/00fb851ca3559d5a1f370f9256814de1210826b8)), closes [#699](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/699)
+
+# [5.0.0](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v4.0.1...v5.0.0) (2023-07-13)
+
+**Note:** Version bump only for package @aws-crypto/crc32
+
+# [4.0.0](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v3.0.0...v4.0.0) (2023-02-20)
+
+**Note:** Version bump only for package @aws-crypto/crc32
+
+# [3.0.0](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v2.0.2...v3.0.0) (2023-01-12)
+
+- feat!: replace Hash implementations with Checksum interface (#492) ([da43dc0](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/da43dc0fdf669d9ebb5bfb1b1f7c79e46c4aaae1)), closes [#492](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/492)
+
+### BREAKING CHANGES
+
+- All classes that implemented `Hash` now implement `Checksum`.
+
+## [2.0.2](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v2.0.1...v2.0.2) (2022-09-07)
+
+### Bug Fixes
+
+- **#337:** update @aws-sdk/types ([#373](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/373)) ([b26a811](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/b26a811a392f5209c7ec7e57251500d4d78f97ff)), closes [#337](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/337)
+
+## [2.0.1](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v2.0.0...v2.0.1) (2021-12-09)
+
+**Note:** Version bump only for package @aws-crypto/crc32
+
+# [2.0.0](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v1.2.2...v2.0.0) (2021-10-25)
+
+**Note:** Version bump only for package @aws-crypto/crc32
+
+## [1.2.2](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v1.2.1...v1.2.2) (2021-10-12)
+
+### Bug Fixes
+
+- **crc32c:** ie11 does not support Array.from ([#221](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/221)) ([5f49547](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/5f495472ab8988cf203e0f2a70a51f7e1fcd7e60))
+
+## [1.2.1](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v1.2.0...v1.2.1) (2021-09-17)
+
+**Note:** Version bump only for package @aws-crypto/crc32
+
+# [1.2.0](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v1.1.1...v1.2.0) (2021-09-17)
+
+### Features
+
+- Add AwsCrc32 Hash ([f5d7e81](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/f5d7e815fcbe0f8da1edb855fea3bd33eb1edc15))
+
+# [1.1.0](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/@aws-crypto/crc32@1.0.0...@aws-crypto/crc32@1.1.0) (2021-08-11)
+
+### Features
+
+- Create CRC-32C implementation ([#201](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/201)) ([e43c7ec](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/e43c7ecd30d6499fa696f5839ecc30502a34b8b6))
+
+# [1.0.0](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/@aws-crypto/crc32@1.0.0-alpha.0...@aws-crypto/crc32@1.0.0) (2020-10-22)
+
+**Note:** Version bump only for package @aws-crypto/crc32
+
+# [1.0.0-alpha.0](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/@aws-crypto/crc32@0.1.0-preview.4...@aws-crypto/crc32@1.0.0-alpha.0) (2020-02-07)
+
+**Note:** Version bump only for package @aws-crypto/crc32
+
+# [0.1.0-preview.4](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/@aws-crypto/crc32@0.1.0-preview.2...@aws-crypto/crc32@0.1.0-preview.4) (2020-01-16)
+
+### Bug Fixes
+
+- Changed package.json files to point to the right Git repo ([#9](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/9)) ([028245d](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/028245d72e642ca98d82226afb300eb154503c4a)), closes [#8](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/8)
+- lerna version maintains package-lock ([#14](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/14)) ([2ef29e1](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/2ef29e13779703a5c9b32e93d18918fcb33b7272)), closes [#13](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/13)
+
+# [0.1.0-preview.3](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/@aws-crypto/crc32@0.1.0-preview.2...@aws-crypto/crc32@0.1.0-preview.3) (2019-11-15)
+
+### Bug Fixes
+
+- Changed package.json files to point to the right Git repo ([#9](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/9)) ([028245d](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/028245d72e642ca98d82226afb300eb154503c4a)), closes [#8](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/8)
+- lerna version maintains package-lock ([#14](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/14)) ([2ef29e1](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/2ef29e13779703a5c9b32e93d18918fcb33b7272)), closes [#13](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/13)
+
+# [0.1.0-preview.2](https://github.com/aws/aws-javascript-crypto-helpers/compare/@aws-crypto/crc32@0.1.0-preview.1...@aws-crypto/crc32@0.1.0-preview.2) (2019-10-30)
+
+### Bug Fixes
+
+- remove /src/ from .npmignore (for sourcemaps) ([#5](https://github.com/aws/aws-javascript-crypto-helpers/issues/5)) ([ec52056](https://github.com/aws/aws-javascript-crypto-helpers/commit/ec52056))
--- a/backend/node_modules/@aws-crypto/crc32/LICENSE
+++ b/backend/node_modules/@aws-crypto/crc32/LICENSE
@@ -0,0 +1,201 @@
+                                Apache License
+                           Version 2.0, January 2004
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+
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--- a/backend/node_modules/@aws-crypto/crc32/README.md
+++ b/backend/node_modules/@aws-crypto/crc32/README.md
@@ -0,0 +1,16 @@
+# @aws-crypto/crc32
+
+Pure JS implementation of CRC32 https://en.wikipedia.org/wiki/Cyclic_redundancy_check
+
+## Usage
+
+```
+import { Crc32 } from '@aws-crypto/crc32';
+
+const crc32Digest = (new Crc32).update(buffer).digest()
+
+```
+
+## Test
+
+`npm test`
--- a/backend/node_modules/@aws-crypto/crc32/build/main/aws_crc32.d.ts
+++ b/backend/node_modules/@aws-crypto/crc32/build/main/aws_crc32.d.ts
@@ -0,0 +1,7 @@
+import { SourceData, Checksum } from "@aws-sdk/types";
+export declare class AwsCrc32 implements Checksum {
+    private crc32;
+    update(toHash: SourceData): void;
+    digest(): Promise<Uint8Array>;
+    reset(): void;
+}
--- a/backend/node_modules/@aws-crypto/crc32/build/main/aws_crc32.js
+++ b/backend/node_modules/@aws-crypto/crc32/build/main/aws_crc32.js
@@ -0,0 +1,31 @@
+"use strict";
+// Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.AwsCrc32 = void 0;
+var tslib_1 = require("tslib");
+var util_1 = require("@aws-crypto/util");
+var index_1 = require("./index");
+var AwsCrc32 = /** @class */ (function () {
+    function AwsCrc32() {
+        this.crc32 = new index_1.Crc32();
+    }
+    AwsCrc32.prototype.update = function (toHash) {
+        if ((0, util_1.isEmptyData)(toHash))
+            return;
+        this.crc32.update((0, util_1.convertToBuffer)(toHash));
+    };
+    AwsCrc32.prototype.digest = function () {
+        return tslib_1.__awaiter(this, void 0, void 0, function () {
+            return tslib_1.__generator(this, function (_a) {
+                return [2 /*return*/, (0, util_1.numToUint8)(this.crc32.digest())];
+            });
+        });
+    };
+    AwsCrc32.prototype.reset = function () {
+        this.crc32 = new index_1.Crc32();
+    };
+    return AwsCrc32;
+}());
+exports.AwsCrc32 = AwsCrc32;
+//# sourceMappingURL=aws_crc32.js.map
--- a/backend/node_modules/@aws-crypto/crc32/build/main/aws_crc32.js.map
+++ b/backend/node_modules/@aws-crypto/crc32/build/main/aws_crc32.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"aws_crc32.js","sourceRoot":"","sources":["../../src/aws_crc32.ts"],"names":[],"mappings":";AAAA,oEAAoE;AACpE,sCAAsC;;;;AAGtC,yCAA4E;AAC5E,iCAAgC;AAEhC;IAAA;QACU,UAAK,GAAG,IAAI,aAAK,EAAE,CAAC;IAe9B,CAAC;IAbC,yBAAM,GAAN,UAAO,MAAkB;QACvB,IAAI,IAAA,kBAAW,EAAC,MAAM,CAAC;YAAE,OAAO;QAEhC,IAAI,CAAC,KAAK,CAAC,MAAM,CAAC,IAAA,sBAAe,EAAC,MAAM,CAAC,CAAC,CAAC;IAC7C,CAAC;IAEK,yBAAM,GAAZ;;;gBACE,sBAAO,IAAA,iBAAU,EAAC,IAAI,CAAC,KAAK,CAAC,MAAM,EAAE,CAAC,EAAC;;;KACxC;IAED,wBAAK,GAAL;QACE,IAAI,CAAC,KAAK,GAAG,IAAI,aAAK,EAAE,CAAC;IAC3B,CAAC;IACH,eAAC;AAAD,CAAC,AAhBD,IAgBC;AAhBY,4BAAQ"}
--- a/backend/node_modules/@aws-crypto/crc32/build/main/index.d.ts
+++ b/backend/node_modules/@aws-crypto/crc32/build/main/index.d.ts
@@ -0,0 +1,7 @@
+export declare function crc32(data: Uint8Array): number;
+export declare class Crc32 {
+    private checksum;
+    update(data: Uint8Array): this;
+    digest(): number;
+}
+export { AwsCrc32 } from "./aws_crc32";
--- a/backend/node_modules/@aws-crypto/crc32/build/main/index.js
+++ b/backend/node_modules/@aws-crypto/crc32/build/main/index.js
@@ -0,0 +1,108 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.AwsCrc32 = exports.Crc32 = exports.crc32 = void 0;
+var tslib_1 = require("tslib");
+var util_1 = require("@aws-crypto/util");
+function crc32(data) {
+    return new Crc32().update(data).digest();
+}
+exports.crc32 = crc32;
+var Crc32 = /** @class */ (function () {
+    function Crc32() {
+        this.checksum = 0xffffffff;
+    }
+    Crc32.prototype.update = function (data) {
+        var e_1, _a;
+        try {
+            for (var data_1 = tslib_1.__values(data), data_1_1 = data_1.next(); !data_1_1.done; data_1_1 = data_1.next()) {
+                var byte = data_1_1.value;
+                this.checksum =
+                    (this.checksum >>> 8) ^ lookupTable[(this.checksum ^ byte) & 0xff];
+            }
+        }
+        catch (e_1_1) { e_1 = { error: e_1_1 }; }
+        finally {
+            try {
+                if (data_1_1 && !data_1_1.done && (_a = data_1.return)) _a.call(data_1);
+            }
+            finally { if (e_1) throw e_1.error; }
+        }
+        return this;
+    };
+    Crc32.prototype.digest = function () {
+        return (this.checksum ^ 0xffffffff) >>> 0;
+    };
+    return Crc32;
+}());
+exports.Crc32 = Crc32;
+// prettier-ignore
+var a_lookUpTable = [
+    0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA,
+    0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3,
+    0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988,
+    0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91,
+    0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE,
+    0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
+    0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC,
+    0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5,
+    0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172,
+    0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B,
+    0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940,
+    0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
+    0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116,
+    0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F,
+    0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924,
+    0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D,
+    0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A,
+    0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
+    0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818,
+    0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01,
+    0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E,
+    0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457,
+    0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C,
+    0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
+    0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2,
+    0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB,
+    0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0,
+    0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9,
+    0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086,
+    0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
+    0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4,
+    0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD,
+    0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A,
+    0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683,
+    0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8,
+    0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
+    0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE,
+    0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7,
+    0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC,
+    0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
+    0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252,
+    0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
+    0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60,
+    0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79,
+    0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
+    0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F,
+    0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04,
+    0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
+    0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A,
+    0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713,
+    0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38,
+    0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21,
+    0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E,
+    0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
+    0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C,
+    0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45,
+    0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2,
+    0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB,
+    0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0,
+    0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
+    0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6,
+    0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF,
+    0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
+    0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D,
+];
+var lookupTable = (0, util_1.uint32ArrayFrom)(a_lookUpTable);
+var aws_crc32_1 = require("./aws_crc32");
+Object.defineProperty(exports, "AwsCrc32", { enumerable: true, get: function () { return aws_crc32_1.AwsCrc32; } });
+//# sourceMappingURL=index.js.map
--- a/backend/node_modules/@aws-crypto/crc32/build/main/index.js.map
+++ b/backend/node_modules/@aws-crypto/crc32/build/main/index.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../src/index.ts"],"names":[],"mappings":";;;;AAAA,yCAAiD;AAEjD,SAAgB,KAAK,CAAC,IAAgB;IACpC,OAAO,IAAI,KAAK,EAAE,CAAC,MAAM,CAAC,IAAI,CAAC,CAAC,MAAM,EAAE,CAAC;AAC3C,CAAC;AAFD,sBAEC;AAED;IAAA;QACU,aAAQ,GAAG,UAAU,CAAC;IAchC,CAAC;IAZC,sBAAM,GAAN,UAAO,IAAgB;;;YACrB,KAAmB,IAAA,SAAA,iBAAA,IAAI,CAAA,0BAAA,4CAAE;gBAApB,IAAM,IAAI,iBAAA;gBACb,IAAI,CAAC,QAAQ;oBACX,CAAC,IAAI,CAAC,QAAQ,KAAK,CAAC,CAAC,GAAG,WAAW,CAAC,CAAC,IAAI,CAAC,QAAQ,GAAG,IAAI,CAAC,GAAG,IAAI,CAAC,CAAC;aACtE;;;;;;;;;QAED,OAAO,IAAI,CAAC;IACd,CAAC;IAED,sBAAM,GAAN;QACE,OAAO,CAAC,IAAI,CAAC,QAAQ,GAAG,UAAU,CAAC,KAAK,CAAC,CAAC;IAC5C,CAAC;IACH,YAAC;AAAD,CAAC,AAfD,IAeC;AAfY,sBAAK;AAiBlB,kBAAkB;AAClB,IAAM,aAAa,GAAG;IACpB,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;CAC/C,CAAC;AACF,IAAM,WAAW,GAAgB,IAAA,sBAAe,EAAC,aAAa,CAAC,CAAA;AAC/D,yCAAuC;AAA9B,qGAAA,QAAQ,OAAA"}
--- a/backend/node_modules/@aws-crypto/crc32/build/module/aws_crc32.d.ts
+++ b/backend/node_modules/@aws-crypto/crc32/build/module/aws_crc32.d.ts
@@ -0,0 +1,7 @@
+import { SourceData, Checksum } from "@aws-sdk/types";
+export declare class AwsCrc32 implements Checksum {
+    private crc32;
+    update(toHash: SourceData): void;
+    digest(): Promise<Uint8Array>;
+    reset(): void;
+}
--- a/backend/node_modules/@aws-crypto/crc32/build/module/aws_crc32.js
+++ b/backend/node_modules/@aws-crypto/crc32/build/module/aws_crc32.js
@@ -0,0 +1,28 @@
+// Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+import { __awaiter, __generator } from "tslib";
+import { convertToBuffer, isEmptyData, numToUint8 } from "@aws-crypto/util";
+import { Crc32 } from "./index";
+var AwsCrc32 = /** @class */ (function () {
+    function AwsCrc32() {
+        this.crc32 = new Crc32();
+    }
+    AwsCrc32.prototype.update = function (toHash) {
+        if (isEmptyData(toHash))
+            return;
+        this.crc32.update(convertToBuffer(toHash));
+    };
+    AwsCrc32.prototype.digest = function () {
+        return __awaiter(this, void 0, void 0, function () {
+            return __generator(this, function (_a) {
+                return [2 /*return*/, numToUint8(this.crc32.digest())];
+            });
+        });
+    };
+    AwsCrc32.prototype.reset = function () {
+        this.crc32 = new Crc32();
+    };
+    return AwsCrc32;
+}());
+export { AwsCrc32 };
+//# sourceMappingURL=aws_crc32.js.map
--- a/backend/node_modules/@aws-crypto/crc32/build/module/aws_crc32.js.map
+++ b/backend/node_modules/@aws-crypto/crc32/build/module/aws_crc32.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"aws_crc32.js","sourceRoot":"","sources":["../../src/aws_crc32.ts"],"names":[],"mappings":"AAAA,oEAAoE;AACpE,sCAAsC;;AAGtC,OAAO,EAAE,eAAe,EAAE,WAAW,EAAE,UAAU,EAAE,MAAM,kBAAkB,CAAC;AAC5E,OAAO,EAAE,KAAK,EAAE,MAAM,SAAS,CAAC;AAEhC;IAAA;QACU,UAAK,GAAG,IAAI,KAAK,EAAE,CAAC;IAe9B,CAAC;IAbC,yBAAM,GAAN,UAAO,MAAkB;QACvB,IAAI,WAAW,CAAC,MAAM,CAAC;YAAE,OAAO;QAEhC,IAAI,CAAC,KAAK,CAAC,MAAM,CAAC,eAAe,CAAC,MAAM,CAAC,CAAC,CAAC;IAC7C,CAAC;IAEK,yBAAM,GAAZ;;;gBACE,sBAAO,UAAU,CAAC,IAAI,CAAC,KAAK,CAAC,MAAM,EAAE,CAAC,EAAC;;;KACxC;IAED,wBAAK,GAAL;QACE,IAAI,CAAC,KAAK,GAAG,IAAI,KAAK,EAAE,CAAC;IAC3B,CAAC;IACH,eAAC;AAAD,CAAC,AAhBD,IAgBC"}
--- a/backend/node_modules/@aws-crypto/crc32/build/module/index.d.ts
+++ b/backend/node_modules/@aws-crypto/crc32/build/module/index.d.ts
@@ -0,0 +1,7 @@
+export declare function crc32(data: Uint8Array): number;
+export declare class Crc32 {
+    private checksum;
+    update(data: Uint8Array): this;
+    digest(): number;
+}
+export { AwsCrc32 } from "./aws_crc32";
--- a/backend/node_modules/@aws-crypto/crc32/build/module/index.js
+++ b/backend/node_modules/@aws-crypto/crc32/build/module/index.js
@@ -0,0 +1,103 @@
+import { __values } from "tslib";
+import { uint32ArrayFrom } from "@aws-crypto/util";
+export function crc32(data) {
+    return new Crc32().update(data).digest();
+}
+var Crc32 = /** @class */ (function () {
+    function Crc32() {
+        this.checksum = 0xffffffff;
+    }
+    Crc32.prototype.update = function (data) {
+        var e_1, _a;
+        try {
+            for (var data_1 = __values(data), data_1_1 = data_1.next(); !data_1_1.done; data_1_1 = data_1.next()) {
+                var byte = data_1_1.value;
+                this.checksum =
+                    (this.checksum >>> 8) ^ lookupTable[(this.checksum ^ byte) & 0xff];
+            }
+        }
+        catch (e_1_1) { e_1 = { error: e_1_1 }; }
+        finally {
+            try {
+                if (data_1_1 && !data_1_1.done && (_a = data_1.return)) _a.call(data_1);
+            }
+            finally { if (e_1) throw e_1.error; }
+        }
+        return this;
+    };
+    Crc32.prototype.digest = function () {
+        return (this.checksum ^ 0xffffffff) >>> 0;
+    };
+    return Crc32;
+}());
+export { Crc32 };
+// prettier-ignore
+var a_lookUpTable = [
+    0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA,
+    0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3,
+    0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988,
+    0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91,
+    0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE,
+    0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
+    0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC,
+    0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5,
+    0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172,
+    0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B,
+    0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940,
+    0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
+    0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116,
+    0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F,
+    0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924,
+    0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D,
+    0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A,
+    0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
+    0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818,
+    0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01,
+    0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E,
+    0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457,
+    0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C,
+    0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
+    0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2,
+    0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB,
+    0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0,
+    0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9,
+    0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086,
+    0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
+    0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4,
+    0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD,
+    0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A,
+    0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683,
+    0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8,
+    0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
+    0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE,
+    0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7,
+    0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC,
+    0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
+    0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252,
+    0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
+    0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60,
+    0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79,
+    0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
+    0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F,
+    0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04,
+    0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
+    0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A,
+    0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713,
+    0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38,
+    0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21,
+    0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E,
+    0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
+    0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C,
+    0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45,
+    0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2,
+    0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB,
+    0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0,
+    0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
+    0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6,
+    0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF,
+    0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
+    0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D,
+];
+var lookupTable = uint32ArrayFrom(a_lookUpTable);
+export { AwsCrc32 } from "./aws_crc32";
+//# sourceMappingURL=index.js.map
--- a/backend/node_modules/@aws-crypto/crc32/build/module/index.js.map
+++ b/backend/node_modules/@aws-crypto/crc32/build/module/index.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../src/index.ts"],"names":[],"mappings":";AAAA,OAAO,EAAC,eAAe,EAAC,MAAM,kBAAkB,CAAC;AAEjD,MAAM,UAAU,KAAK,CAAC,IAAgB;IACpC,OAAO,IAAI,KAAK,EAAE,CAAC,MAAM,CAAC,IAAI,CAAC,CAAC,MAAM,EAAE,CAAC;AAC3C,CAAC;AAED;IAAA;QACU,aAAQ,GAAG,UAAU,CAAC;IAchC,CAAC;IAZC,sBAAM,GAAN,UAAO,IAAgB;;;YACrB,KAAmB,IAAA,SAAA,SAAA,IAAI,CAAA,0BAAA,4CAAE;gBAApB,IAAM,IAAI,iBAAA;gBACb,IAAI,CAAC,QAAQ;oBACX,CAAC,IAAI,CAAC,QAAQ,KAAK,CAAC,CAAC,GAAG,WAAW,CAAC,CAAC,IAAI,CAAC,QAAQ,GAAG,IAAI,CAAC,GAAG,IAAI,CAAC,CAAC;aACtE;;;;;;;;;QAED,OAAO,IAAI,CAAC;IACd,CAAC;IAED,sBAAM,GAAN;QACE,OAAO,CAAC,IAAI,CAAC,QAAQ,GAAG,UAAU,CAAC,KAAK,CAAC,CAAC;IAC5C,CAAC;IACH,YAAC;AAAD,CAAC,AAfD,IAeC;;AAED,kBAAkB;AAClB,IAAM,aAAa,GAAG;IACpB,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9C,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;CAC/C,CAAC;AACF,IAAM,WAAW,GAAgB,eAAe,CAAC,aAAa,CAAC,CAAA;AAC/D,OAAO,EAAE,QAAQ,EAAE,MAAM,aAAa,CAAC"}
--- a/backend/node_modules/@aws-crypto/crc32/package.json
+++ b/backend/node_modules/@aws-crypto/crc32/package.json
@@ -0,0 +1,32 @@
+{
+  "name": "@aws-crypto/crc32",
+  "version": "5.2.0",
+  "scripts": {
+    "prepublishOnly": "tsc -p tsconfig.json && tsc -p tsconfig.module.json",
+    "pretest": "tsc -p tsconfig.test.json",
+    "test": "mocha --require ts-node/register test/**/*test.ts"
+  },
+  "main": "./build/main/index.js",
+  "module": "./build/module/index.js",
+  "types": "./build/main/index.d.ts",
+  "repository": {
+    "type": "git",
+    "url": "git@github.com:aws/aws-sdk-js-crypto-helpers.git"
+  },
+  "author": {
+    "name": "AWS Crypto Tools Team",
+    "email": "aws-cryptools@amazon.com",
+    "url": "https://docs.aws.amazon.com/aws-crypto-tools/index.html?id=docs_gateway#lang/en_us"
+  },
+  "homepage": "https://github.com/aws/aws-sdk-js-crypto-helpers/tree/master/packages/crc32",
+  "license": "Apache-2.0",
+  "dependencies": {
+    "@aws-crypto/util": "^5.2.0",
+    "@aws-sdk/types": "^3.222.0",
+    "tslib": "^2.6.2"
+  },
+  "engines": {
+    "node": ">=16.0.0"
+  },
+  "gitHead": "c11b171b35ec5c093364f0e0d8dc4ab1af68e748"
+}
--- a/backend/node_modules/@aws-crypto/crc32/src/aws_crc32.ts
+++ b/backend/node_modules/@aws-crypto/crc32/src/aws_crc32.ts
@@ -0,0 +1,24 @@
+// Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+import { SourceData, Checksum } from "@aws-sdk/types";
+import { convertToBuffer, isEmptyData, numToUint8 } from "@aws-crypto/util";
+import { Crc32 } from "./index";
+
+export class AwsCrc32 implements Checksum {
+  private crc32 = new Crc32();
+
+  update(toHash: SourceData) {
+    if (isEmptyData(toHash)) return;
+
+    this.crc32.update(convertToBuffer(toHash));
+  }
+
+  async digest(): Promise<Uint8Array> {
+    return numToUint8(this.crc32.digest());
+  }
+
+  reset(): void {
+    this.crc32 = new Crc32();
+  }
+}
--- a/backend/node_modules/@aws-crypto/crc32/src/index.ts
+++ b/backend/node_modules/@aws-crypto/crc32/src/index.ts
@@ -0,0 +1,92 @@
+import {uint32ArrayFrom} from "@aws-crypto/util";
+
+export function crc32(data: Uint8Array): number {
+  return new Crc32().update(data).digest();
+}
+
+export class Crc32 {
+  private checksum = 0xffffffff;
+
+  update(data: Uint8Array): this {
+    for (const byte of data) {
+      this.checksum =
+        (this.checksum >>> 8) ^ lookupTable[(this.checksum ^ byte) & 0xff];
+    }
+
+    return this;
+  }
+
+  digest(): number {
+    return (this.checksum ^ 0xffffffff) >>> 0;
+  }
+}
+
+// prettier-ignore
+const a_lookUpTable = [
+  0x00000000, 0x77073096, 0xEE0E612C, 0x990951BA,
+  0x076DC419, 0x706AF48F, 0xE963A535, 0x9E6495A3,
+  0x0EDB8832, 0x79DCB8A4, 0xE0D5E91E, 0x97D2D988,
+  0x09B64C2B, 0x7EB17CBD, 0xE7B82D07, 0x90BF1D91,
+  0x1DB71064, 0x6AB020F2, 0xF3B97148, 0x84BE41DE,
+  0x1ADAD47D, 0x6DDDE4EB, 0xF4D4B551, 0x83D385C7,
+  0x136C9856, 0x646BA8C0, 0xFD62F97A, 0x8A65C9EC,
+  0x14015C4F, 0x63066CD9, 0xFA0F3D63, 0x8D080DF5,
+  0x3B6E20C8, 0x4C69105E, 0xD56041E4, 0xA2677172,
+  0x3C03E4D1, 0x4B04D447, 0xD20D85FD, 0xA50AB56B,
+  0x35B5A8FA, 0x42B2986C, 0xDBBBC9D6, 0xACBCF940,
+  0x32D86CE3, 0x45DF5C75, 0xDCD60DCF, 0xABD13D59,
+  0x26D930AC, 0x51DE003A, 0xC8D75180, 0xBFD06116,
+  0x21B4F4B5, 0x56B3C423, 0xCFBA9599, 0xB8BDA50F,
+  0x2802B89E, 0x5F058808, 0xC60CD9B2, 0xB10BE924,
+  0x2F6F7C87, 0x58684C11, 0xC1611DAB, 0xB6662D3D,
+  0x76DC4190, 0x01DB7106, 0x98D220BC, 0xEFD5102A,
+  0x71B18589, 0x06B6B51F, 0x9FBFE4A5, 0xE8B8D433,
+  0x7807C9A2, 0x0F00F934, 0x9609A88E, 0xE10E9818,
+  0x7F6A0DBB, 0x086D3D2D, 0x91646C97, 0xE6635C01,
+  0x6B6B51F4, 0x1C6C6162, 0x856530D8, 0xF262004E,
+  0x6C0695ED, 0x1B01A57B, 0x8208F4C1, 0xF50FC457,
+  0x65B0D9C6, 0x12B7E950, 0x8BBEB8EA, 0xFCB9887C,
+  0x62DD1DDF, 0x15DA2D49, 0x8CD37CF3, 0xFBD44C65,
+  0x4DB26158, 0x3AB551CE, 0xA3BC0074, 0xD4BB30E2,
+  0x4ADFA541, 0x3DD895D7, 0xA4D1C46D, 0xD3D6F4FB,
+  0x4369E96A, 0x346ED9FC, 0xAD678846, 0xDA60B8D0,
+  0x44042D73, 0x33031DE5, 0xAA0A4C5F, 0xDD0D7CC9,
+  0x5005713C, 0x270241AA, 0xBE0B1010, 0xC90C2086,
+  0x5768B525, 0x206F85B3, 0xB966D409, 0xCE61E49F,
+  0x5EDEF90E, 0x29D9C998, 0xB0D09822, 0xC7D7A8B4,
+  0x59B33D17, 0x2EB40D81, 0xB7BD5C3B, 0xC0BA6CAD,
+  0xEDB88320, 0x9ABFB3B6, 0x03B6E20C, 0x74B1D29A,
+  0xEAD54739, 0x9DD277AF, 0x04DB2615, 0x73DC1683,
+  0xE3630B12, 0x94643B84, 0x0D6D6A3E, 0x7A6A5AA8,
+  0xE40ECF0B, 0x9309FF9D, 0x0A00AE27, 0x7D079EB1,
+  0xF00F9344, 0x8708A3D2, 0x1E01F268, 0x6906C2FE,
+  0xF762575D, 0x806567CB, 0x196C3671, 0x6E6B06E7,
+  0xFED41B76, 0x89D32BE0, 0x10DA7A5A, 0x67DD4ACC,
+  0xF9B9DF6F, 0x8EBEEFF9, 0x17B7BE43, 0x60B08ED5,
+  0xD6D6A3E8, 0xA1D1937E, 0x38D8C2C4, 0x4FDFF252,
+  0xD1BB67F1, 0xA6BC5767, 0x3FB506DD, 0x48B2364B,
+  0xD80D2BDA, 0xAF0A1B4C, 0x36034AF6, 0x41047A60,
+  0xDF60EFC3, 0xA867DF55, 0x316E8EEF, 0x4669BE79,
+  0xCB61B38C, 0xBC66831A, 0x256FD2A0, 0x5268E236,
+  0xCC0C7795, 0xBB0B4703, 0x220216B9, 0x5505262F,
+  0xC5BA3BBE, 0xB2BD0B28, 0x2BB45A92, 0x5CB36A04,
+  0xC2D7FFA7, 0xB5D0CF31, 0x2CD99E8B, 0x5BDEAE1D,
+  0x9B64C2B0, 0xEC63F226, 0x756AA39C, 0x026D930A,
+  0x9C0906A9, 0xEB0E363F, 0x72076785, 0x05005713,
+  0x95BF4A82, 0xE2B87A14, 0x7BB12BAE, 0x0CB61B38,
+  0x92D28E9B, 0xE5D5BE0D, 0x7CDCEFB7, 0x0BDBDF21,
+  0x86D3D2D4, 0xF1D4E242, 0x68DDB3F8, 0x1FDA836E,
+  0x81BE16CD, 0xF6B9265B, 0x6FB077E1, 0x18B74777,
+  0x88085AE6, 0xFF0F6A70, 0x66063BCA, 0x11010B5C,
+  0x8F659EFF, 0xF862AE69, 0x616BFFD3, 0x166CCF45,
+  0xA00AE278, 0xD70DD2EE, 0x4E048354, 0x3903B3C2,
+  0xA7672661, 0xD06016F7, 0x4969474D, 0x3E6E77DB,
+  0xAED16A4A, 0xD9D65ADC, 0x40DF0B66, 0x37D83BF0,
+  0xA9BCAE53, 0xDEBB9EC5, 0x47B2CF7F, 0x30B5FFE9,
+  0xBDBDF21C, 0xCABAC28A, 0x53B39330, 0x24B4A3A6,
+  0xBAD03605, 0xCDD70693, 0x54DE5729, 0x23D967BF,
+  0xB3667A2E, 0xC4614AB8, 0x5D681B02, 0x2A6F2B94,
+  0xB40BBE37, 0xC30C8EA1, 0x5A05DF1B, 0x2D02EF8D,
+];
+const lookupTable: Uint32Array = uint32ArrayFrom(a_lookUpTable)
+export { AwsCrc32 } from "./aws_crc32";
--- a/backend/node_modules/@aws-crypto/crc32/tsconfig.json
+++ b/backend/node_modules/@aws-crypto/crc32/tsconfig.json
@@ -0,0 +1,9 @@
+{
+  "extends": "../tsconfig.json",
+  "compilerOptions": {
+    "rootDir": "./src",
+    "outDir": "./build/main",
+  },
+  "include": ["src/**/*.ts"],
+  "exclude": ["node_modules/**"]
+}
--- a/backend/node_modules/@aws-crypto/crc32/tsconfig.module.json
+++ b/backend/node_modules/@aws-crypto/crc32/tsconfig.module.json
@@ -0,0 +1,7 @@
+{
+  "extends": "./tsconfig",
+  "compilerOptions": {
+    "outDir": "build/module",
+    "module": "esnext",
+  }
+}
--- a/backend/node_modules/@aws-crypto/crc32c/CHANGELOG.md
+++ b/backend/node_modules/@aws-crypto/crc32c/CHANGELOG.md
@@ -0,0 +1,76 @@
+# Change Log
+
+All notable changes to this project will be documented in this file.
+See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
+
+# [5.2.0](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v5.1.0...v5.2.0) (2023-10-16)
+
+### Features
+
+- support ESM artifacts in all packages ([#752](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/752)) ([e930ffb](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/e930ffba5cfef66dd242049e7d514ced232c1e3b))
+
+# [5.1.0](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v5.0.0...v5.1.0) (2023-09-22)
+
+### Bug Fixes
+
+- Update tsc to 2.x ([#735](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/735)) ([782e0de](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/782e0de9f5fef41f694130580a69d940894b6b8c))
+
+### Features
+
+- Use @smithy/util-utf8 ([#730](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/730)) ([00fb851](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/00fb851ca3559d5a1f370f9256814de1210826b8)), closes [#699](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/699)
+
+# [5.0.0](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v4.0.1...v5.0.0) (2023-07-13)
+
+**Note:** Version bump only for package @aws-crypto/crc32c
+
+# [4.0.0](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v3.0.0...v4.0.0) (2023-02-20)
+
+**Note:** Version bump only for package @aws-crypto/crc32c
+
+# [3.0.0](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v2.0.2...v3.0.0) (2023-01-12)
+
+- feat!: replace Hash implementations with Checksum interface (#492) ([da43dc0](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/da43dc0fdf669d9ebb5bfb1b1f7c79e46c4aaae1)), closes [#492](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/492)
+
+### BREAKING CHANGES
+
+- All classes that implemented `Hash` now implement `Checksum`.
+
+## [2.0.2](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v2.0.1...v2.0.2) (2022-09-07)
+
+### Bug Fixes
+
+- **#337:** update @aws-sdk/types ([#373](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/373)) ([b26a811](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/b26a811a392f5209c7ec7e57251500d4d78f97ff)), closes [#337](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/337)
+
+## [2.0.1](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v2.0.0...v2.0.1) (2021-12-09)
+
+**Note:** Version bump only for package @aws-crypto/crc32c
+
+# [2.0.0](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v1.2.2...v2.0.0) (2021-10-25)
+
+**Note:** Version bump only for package @aws-crypto/crc32c
+
+## [1.2.2](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v1.2.1...v1.2.2) (2021-10-12)
+
+### Bug Fixes
+
+- **crc32c:** ie11 does not support Array.from ([#221](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/221)) ([5f49547](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/5f495472ab8988cf203e0f2a70a51f7e1fcd7e60))
+
+## [1.2.1](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v1.2.0...v1.2.1) (2021-09-17)
+
+**Note:** Version bump only for package @aws-crypto/crc32c
+
+# [1.2.0](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v1.1.1...v1.2.0) (2021-09-17)
+
+### Features
+
+- Add AwsCrc32C Hash ([4840c83](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/4840c83bdd7c461dded777ebc45a8f99258ba21c))
+
+## [0.2.1](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/@aws-crypto/crc32c@0.2.0...@aws-crypto/crc32c@0.2.1) (2021-08-24)
+
+**Note:** Version bump only for package @aws-crypto/crc32c
+
+# 0.2.0 (2021-08-11)
+
+### Features
+
+- Create CRC-32C implementation ([#201](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/201)) ([e43c7ec](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/e43c7ecd30d6499fa696f5839ecc30502a34b8b6))
--- a/backend/node_modules/@aws-crypto/crc32c/LICENSE
+++ b/backend/node_modules/@aws-crypto/crc32c/LICENSE
@@ -0,0 +1,201 @@
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--- a/backend/node_modules/@aws-crypto/crc32c/README.md
+++ b/backend/node_modules/@aws-crypto/crc32c/README.md
@@ -0,0 +1,16 @@
+# @aws-crypto/crc32c
+
+Pure JS implementation of CRC32-C https://en.wikipedia.org/wiki/Cyclic_redundancy_check
+
+## Usage
+
+```
+import { Crc32c } from '@aws-crypto/crc32c';
+
+const crc32Digest = (new Crc32c).update(buffer).digest()
+
+```
+
+## Test
+
+`npm test`
--- a/backend/node_modules/@aws-crypto/crc32c/build/main/aws_crc32c.d.ts
+++ b/backend/node_modules/@aws-crypto/crc32c/build/main/aws_crc32c.d.ts
@@ -0,0 +1,7 @@
+import { Checksum, SourceData } from "@aws-sdk/types";
+export declare class AwsCrc32c implements Checksum {
+    private crc32c;
+    update(toHash: SourceData): void;
+    digest(): Promise<Uint8Array>;
+    reset(): void;
+}
--- a/backend/node_modules/@aws-crypto/crc32c/build/main/aws_crc32c.js
+++ b/backend/node_modules/@aws-crypto/crc32c/build/main/aws_crc32c.js
@@ -0,0 +1,31 @@
+"use strict";
+// Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.AwsCrc32c = void 0;
+var tslib_1 = require("tslib");
+var util_1 = require("@aws-crypto/util");
+var index_1 = require("./index");
+var AwsCrc32c = /** @class */ (function () {
+    function AwsCrc32c() {
+        this.crc32c = new index_1.Crc32c();
+    }
+    AwsCrc32c.prototype.update = function (toHash) {
+        if ((0, util_1.isEmptyData)(toHash))
+            return;
+        this.crc32c.update((0, util_1.convertToBuffer)(toHash));
+    };
+    AwsCrc32c.prototype.digest = function () {
+        return tslib_1.__awaiter(this, void 0, void 0, function () {
+            return tslib_1.__generator(this, function (_a) {
+                return [2 /*return*/, (0, util_1.numToUint8)(this.crc32c.digest())];
+            });
+        });
+    };
+    AwsCrc32c.prototype.reset = function () {
+        this.crc32c = new index_1.Crc32c();
+    };
+    return AwsCrc32c;
+}());
+exports.AwsCrc32c = AwsCrc32c;
+//# sourceMappingURL=aws_crc32c.js.map
--- a/backend/node_modules/@aws-crypto/crc32c/build/main/aws_crc32c.js.map
+++ b/backend/node_modules/@aws-crypto/crc32c/build/main/aws_crc32c.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"aws_crc32c.js","sourceRoot":"","sources":["../../src/aws_crc32c.ts"],"names":[],"mappings":";AAAA,oEAAoE;AACpE,sCAAsC;;;;AAGtC,yCAA4E;AAC5E,iCAAiC;AAEjC;IAAA;QACU,WAAM,GAAG,IAAI,cAAM,EAAE,CAAC;IAehC,CAAC;IAbC,0BAAM,GAAN,UAAO,MAAkB;QACvB,IAAI,IAAA,kBAAW,EAAC,MAAM,CAAC;YAAE,OAAO;QAEhC,IAAI,CAAC,MAAM,CAAC,MAAM,CAAC,IAAA,sBAAe,EAAC,MAAM,CAAC,CAAC,CAAC;IAC9C,CAAC;IAEK,0BAAM,GAAZ;;;gBACE,sBAAO,IAAA,iBAAU,EAAC,IAAI,CAAC,MAAM,CAAC,MAAM,EAAE,CAAC,EAAC;;;KACzC;IAED,yBAAK,GAAL;QACE,IAAI,CAAC,MAAM,GAAG,IAAI,cAAM,EAAE,CAAC;IAC7B,CAAC;IACH,gBAAC;AAAD,CAAC,AAhBD,IAgBC;AAhBY,8BAAS"}
--- a/backend/node_modules/@aws-crypto/crc32c/build/main/index.d.ts
+++ b/backend/node_modules/@aws-crypto/crc32c/build/main/index.d.ts
@@ -0,0 +1,7 @@
+export declare function crc32c(data: Uint8Array): number;
+export declare class Crc32c {
+    private checksum;
+    update(data: Uint8Array): this;
+    digest(): number;
+}
+export { AwsCrc32c } from "./aws_crc32c";
--- a/backend/node_modules/@aws-crypto/crc32c/build/main/index.js
+++ b/backend/node_modules/@aws-crypto/crc32c/build/main/index.js
@@ -0,0 +1,78 @@
+"use strict";
+// Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.AwsCrc32c = exports.Crc32c = exports.crc32c = void 0;
+var tslib_1 = require("tslib");
+var util_1 = require("@aws-crypto/util");
+function crc32c(data) {
+    return new Crc32c().update(data).digest();
+}
+exports.crc32c = crc32c;
+var Crc32c = /** @class */ (function () {
+    function Crc32c() {
+        this.checksum = 0xffffffff;
+    }
+    Crc32c.prototype.update = function (data) {
+        var e_1, _a;
+        try {
+            for (var data_1 = tslib_1.__values(data), data_1_1 = data_1.next(); !data_1_1.done; data_1_1 = data_1.next()) {
+                var byte = data_1_1.value;
+                this.checksum =
+                    (this.checksum >>> 8) ^ lookupTable[(this.checksum ^ byte) & 0xff];
+            }
+        }
+        catch (e_1_1) { e_1 = { error: e_1_1 }; }
+        finally {
+            try {
+                if (data_1_1 && !data_1_1.done && (_a = data_1.return)) _a.call(data_1);
+            }
+            finally { if (e_1) throw e_1.error; }
+        }
+        return this;
+    };
+    Crc32c.prototype.digest = function () {
+        return (this.checksum ^ 0xffffffff) >>> 0;
+    };
+    return Crc32c;
+}());
+exports.Crc32c = Crc32c;
+// prettier-ignore
+var a_lookupTable = [
+    0x00000000, 0xF26B8303, 0xE13B70F7, 0x1350F3F4, 0xC79A971F, 0x35F1141C, 0x26A1E7E8, 0xD4CA64EB,
+    0x8AD958CF, 0x78B2DBCC, 0x6BE22838, 0x9989AB3B, 0x4D43CFD0, 0xBF284CD3, 0xAC78BF27, 0x5E133C24,
+    0x105EC76F, 0xE235446C, 0xF165B798, 0x030E349B, 0xD7C45070, 0x25AFD373, 0x36FF2087, 0xC494A384,
+    0x9A879FA0, 0x68EC1CA3, 0x7BBCEF57, 0x89D76C54, 0x5D1D08BF, 0xAF768BBC, 0xBC267848, 0x4E4DFB4B,
+    0x20BD8EDE, 0xD2D60DDD, 0xC186FE29, 0x33ED7D2A, 0xE72719C1, 0x154C9AC2, 0x061C6936, 0xF477EA35,
+    0xAA64D611, 0x580F5512, 0x4B5FA6E6, 0xB93425E5, 0x6DFE410E, 0x9F95C20D, 0x8CC531F9, 0x7EAEB2FA,
+    0x30E349B1, 0xC288CAB2, 0xD1D83946, 0x23B3BA45, 0xF779DEAE, 0x05125DAD, 0x1642AE59, 0xE4292D5A,
+    0xBA3A117E, 0x4851927D, 0x5B016189, 0xA96AE28A, 0x7DA08661, 0x8FCB0562, 0x9C9BF696, 0x6EF07595,
+    0x417B1DBC, 0xB3109EBF, 0xA0406D4B, 0x522BEE48, 0x86E18AA3, 0x748A09A0, 0x67DAFA54, 0x95B17957,
+    0xCBA24573, 0x39C9C670, 0x2A993584, 0xD8F2B687, 0x0C38D26C, 0xFE53516F, 0xED03A29B, 0x1F682198,
+    0x5125DAD3, 0xA34E59D0, 0xB01EAA24, 0x42752927, 0x96BF4DCC, 0x64D4CECF, 0x77843D3B, 0x85EFBE38,
+    0xDBFC821C, 0x2997011F, 0x3AC7F2EB, 0xC8AC71E8, 0x1C661503, 0xEE0D9600, 0xFD5D65F4, 0x0F36E6F7,
+    0x61C69362, 0x93AD1061, 0x80FDE395, 0x72966096, 0xA65C047D, 0x5437877E, 0x4767748A, 0xB50CF789,
+    0xEB1FCBAD, 0x197448AE, 0x0A24BB5A, 0xF84F3859, 0x2C855CB2, 0xDEEEDFB1, 0xCDBE2C45, 0x3FD5AF46,
+    0x7198540D, 0x83F3D70E, 0x90A324FA, 0x62C8A7F9, 0xB602C312, 0x44694011, 0x5739B3E5, 0xA55230E6,
+    0xFB410CC2, 0x092A8FC1, 0x1A7A7C35, 0xE811FF36, 0x3CDB9BDD, 0xCEB018DE, 0xDDE0EB2A, 0x2F8B6829,
+    0x82F63B78, 0x709DB87B, 0x63CD4B8F, 0x91A6C88C, 0x456CAC67, 0xB7072F64, 0xA457DC90, 0x563C5F93,
+    0x082F63B7, 0xFA44E0B4, 0xE9141340, 0x1B7F9043, 0xCFB5F4A8, 0x3DDE77AB, 0x2E8E845F, 0xDCE5075C,
+    0x92A8FC17, 0x60C37F14, 0x73938CE0, 0x81F80FE3, 0x55326B08, 0xA759E80B, 0xB4091BFF, 0x466298FC,
+    0x1871A4D8, 0xEA1A27DB, 0xF94AD42F, 0x0B21572C, 0xDFEB33C7, 0x2D80B0C4, 0x3ED04330, 0xCCBBC033,
+    0xA24BB5A6, 0x502036A5, 0x4370C551, 0xB11B4652, 0x65D122B9, 0x97BAA1BA, 0x84EA524E, 0x7681D14D,
+    0x2892ED69, 0xDAF96E6A, 0xC9A99D9E, 0x3BC21E9D, 0xEF087A76, 0x1D63F975, 0x0E330A81, 0xFC588982,
+    0xB21572C9, 0x407EF1CA, 0x532E023E, 0xA145813D, 0x758FE5D6, 0x87E466D5, 0x94B49521, 0x66DF1622,
+    0x38CC2A06, 0xCAA7A905, 0xD9F75AF1, 0x2B9CD9F2, 0xFF56BD19, 0x0D3D3E1A, 0x1E6DCDEE, 0xEC064EED,
+    0xC38D26C4, 0x31E6A5C7, 0x22B65633, 0xD0DDD530, 0x0417B1DB, 0xF67C32D8, 0xE52CC12C, 0x1747422F,
+    0x49547E0B, 0xBB3FFD08, 0xA86F0EFC, 0x5A048DFF, 0x8ECEE914, 0x7CA56A17, 0x6FF599E3, 0x9D9E1AE0,
+    0xD3D3E1AB, 0x21B862A8, 0x32E8915C, 0xC083125F, 0x144976B4, 0xE622F5B7, 0xF5720643, 0x07198540,
+    0x590AB964, 0xAB613A67, 0xB831C993, 0x4A5A4A90, 0x9E902E7B, 0x6CFBAD78, 0x7FAB5E8C, 0x8DC0DD8F,
+    0xE330A81A, 0x115B2B19, 0x020BD8ED, 0xF0605BEE, 0x24AA3F05, 0xD6C1BC06, 0xC5914FF2, 0x37FACCF1,
+    0x69E9F0D5, 0x9B8273D6, 0x88D28022, 0x7AB90321, 0xAE7367CA, 0x5C18E4C9, 0x4F48173D, 0xBD23943E,
+    0xF36E6F75, 0x0105EC76, 0x12551F82, 0xE03E9C81, 0x34F4F86A, 0xC69F7B69, 0xD5CF889D, 0x27A40B9E,
+    0x79B737BA, 0x8BDCB4B9, 0x988C474D, 0x6AE7C44E, 0xBE2DA0A5, 0x4C4623A6, 0x5F16D052, 0xAD7D5351,
+];
+var lookupTable = (0, util_1.uint32ArrayFrom)(a_lookupTable);
+var aws_crc32c_1 = require("./aws_crc32c");
+Object.defineProperty(exports, "AwsCrc32c", { enumerable: true, get: function () { return aws_crc32c_1.AwsCrc32c; } });
+//# sourceMappingURL=index.js.map
--- a/backend/node_modules/@aws-crypto/crc32c/build/main/index.js.map
+++ b/backend/node_modules/@aws-crypto/crc32c/build/main/index.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../src/index.ts"],"names":[],"mappings":";AAAA,oEAAoE;AACpE,sCAAsC;;;;AAEtC,yCAAiD;AAEjD,SAAgB,MAAM,CAAC,IAAgB;IACrC,OAAO,IAAI,MAAM,EAAE,CAAC,MAAM,CAAC,IAAI,CAAC,CAAC,MAAM,EAAE,CAAC;AAC5C,CAAC;AAFD,wBAEC;AAED;IAAA;QACU,aAAQ,GAAG,UAAU,CAAC;IAchC,CAAC;IAZC,uBAAM,GAAN,UAAO,IAAgB;;;YACrB,KAAmB,IAAA,SAAA,iBAAA,IAAI,CAAA,0BAAA,4CAAE;gBAApB,IAAM,IAAI,iBAAA;gBACb,IAAI,CAAC,QAAQ;oBACX,CAAC,IAAI,CAAC,QAAQ,KAAK,CAAC,CAAC,GAAG,WAAW,CAAC,CAAC,IAAI,CAAC,QAAQ,GAAG,IAAI,CAAC,GAAG,IAAI,CAAC,CAAC;aACtE;;;;;;;;;QAED,OAAO,IAAI,CAAC;IACd,CAAC;IAED,uBAAM,GAAN;QACE,OAAO,CAAC,IAAI,CAAC,QAAQ,GAAG,UAAU,CAAC,KAAK,CAAC,CAAC;IAC5C,CAAC;IACH,aAAC;AAAD,CAAC,AAfD,IAeC;AAfY,wBAAM;AAiBnB,kBAAkB;AAClB,IAAM,aAAa,GAAG;IACpB,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;CAC/F,CAAC;AAEF,IAAM,WAAW,GAAgB,IAAA,sBAAe,EAAC,aAAa,CAAC,CAAA;AAC/D,2CAAyC;AAAhC,uGAAA,SAAS,OAAA"}
--- a/backend/node_modules/@aws-crypto/crc32c/build/module/aws_crc32c.d.ts
+++ b/backend/node_modules/@aws-crypto/crc32c/build/module/aws_crc32c.d.ts
@@ -0,0 +1,7 @@
+import { Checksum, SourceData } from "@aws-sdk/types";
+export declare class AwsCrc32c implements Checksum {
+    private crc32c;
+    update(toHash: SourceData): void;
+    digest(): Promise<Uint8Array>;
+    reset(): void;
+}
--- a/backend/node_modules/@aws-crypto/crc32c/build/module/aws_crc32c.js
+++ b/backend/node_modules/@aws-crypto/crc32c/build/module/aws_crc32c.js
@@ -0,0 +1,28 @@
+// Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+import { __awaiter, __generator } from "tslib";
+import { convertToBuffer, isEmptyData, numToUint8 } from "@aws-crypto/util";
+import { Crc32c } from "./index";
+var AwsCrc32c = /** @class */ (function () {
+    function AwsCrc32c() {
+        this.crc32c = new Crc32c();
+    }
+    AwsCrc32c.prototype.update = function (toHash) {
+        if (isEmptyData(toHash))
+            return;
+        this.crc32c.update(convertToBuffer(toHash));
+    };
+    AwsCrc32c.prototype.digest = function () {
+        return __awaiter(this, void 0, void 0, function () {
+            return __generator(this, function (_a) {
+                return [2 /*return*/, numToUint8(this.crc32c.digest())];
+            });
+        });
+    };
+    AwsCrc32c.prototype.reset = function () {
+        this.crc32c = new Crc32c();
+    };
+    return AwsCrc32c;
+}());
+export { AwsCrc32c };
+//# sourceMappingURL=aws_crc32c.js.map
--- a/backend/node_modules/@aws-crypto/crc32c/build/module/aws_crc32c.js.map
+++ b/backend/node_modules/@aws-crypto/crc32c/build/module/aws_crc32c.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"aws_crc32c.js","sourceRoot":"","sources":["../../src/aws_crc32c.ts"],"names":[],"mappings":"AAAA,oEAAoE;AACpE,sCAAsC;;AAGtC,OAAO,EAAE,eAAe,EAAE,WAAW,EAAE,UAAU,EAAE,MAAM,kBAAkB,CAAC;AAC5E,OAAO,EAAE,MAAM,EAAE,MAAM,SAAS,CAAC;AAEjC;IAAA;QACU,WAAM,GAAG,IAAI,MAAM,EAAE,CAAC;IAehC,CAAC;IAbC,0BAAM,GAAN,UAAO,MAAkB;QACvB,IAAI,WAAW,CAAC,MAAM,CAAC;YAAE,OAAO;QAEhC,IAAI,CAAC,MAAM,CAAC,MAAM,CAAC,eAAe,CAAC,MAAM,CAAC,CAAC,CAAC;IAC9C,CAAC;IAEK,0BAAM,GAAZ;;;gBACE,sBAAO,UAAU,CAAC,IAAI,CAAC,MAAM,CAAC,MAAM,EAAE,CAAC,EAAC;;;KACzC;IAED,yBAAK,GAAL;QACE,IAAI,CAAC,MAAM,GAAG,IAAI,MAAM,EAAE,CAAC;IAC7B,CAAC;IACH,gBAAC;AAAD,CAAC,AAhBD,IAgBC"}
--- a/backend/node_modules/@aws-crypto/crc32c/build/module/index.d.ts
+++ b/backend/node_modules/@aws-crypto/crc32c/build/module/index.d.ts
@@ -0,0 +1,7 @@
+export declare function crc32c(data: Uint8Array): number;
+export declare class Crc32c {
+    private checksum;
+    update(data: Uint8Array): this;
+    digest(): number;
+}
+export { AwsCrc32c } from "./aws_crc32c";
--- a/backend/node_modules/@aws-crypto/crc32c/build/module/index.js
+++ b/backend/node_modules/@aws-crypto/crc32c/build/module/index.js
@@ -0,0 +1,73 @@
+// Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+import { __values } from "tslib";
+import { uint32ArrayFrom } from "@aws-crypto/util";
+export function crc32c(data) {
+    return new Crc32c().update(data).digest();
+}
+var Crc32c = /** @class */ (function () {
+    function Crc32c() {
+        this.checksum = 0xffffffff;
+    }
+    Crc32c.prototype.update = function (data) {
+        var e_1, _a;
+        try {
+            for (var data_1 = __values(data), data_1_1 = data_1.next(); !data_1_1.done; data_1_1 = data_1.next()) {
+                var byte = data_1_1.value;
+                this.checksum =
+                    (this.checksum >>> 8) ^ lookupTable[(this.checksum ^ byte) & 0xff];
+            }
+        }
+        catch (e_1_1) { e_1 = { error: e_1_1 }; }
+        finally {
+            try {
+                if (data_1_1 && !data_1_1.done && (_a = data_1.return)) _a.call(data_1);
+            }
+            finally { if (e_1) throw e_1.error; }
+        }
+        return this;
+    };
+    Crc32c.prototype.digest = function () {
+        return (this.checksum ^ 0xffffffff) >>> 0;
+    };
+    return Crc32c;
+}());
+export { Crc32c };
+// prettier-ignore
+var a_lookupTable = [
+    0x00000000, 0xF26B8303, 0xE13B70F7, 0x1350F3F4, 0xC79A971F, 0x35F1141C, 0x26A1E7E8, 0xD4CA64EB,
+    0x8AD958CF, 0x78B2DBCC, 0x6BE22838, 0x9989AB3B, 0x4D43CFD0, 0xBF284CD3, 0xAC78BF27, 0x5E133C24,
+    0x105EC76F, 0xE235446C, 0xF165B798, 0x030E349B, 0xD7C45070, 0x25AFD373, 0x36FF2087, 0xC494A384,
+    0x9A879FA0, 0x68EC1CA3, 0x7BBCEF57, 0x89D76C54, 0x5D1D08BF, 0xAF768BBC, 0xBC267848, 0x4E4DFB4B,
+    0x20BD8EDE, 0xD2D60DDD, 0xC186FE29, 0x33ED7D2A, 0xE72719C1, 0x154C9AC2, 0x061C6936, 0xF477EA35,
+    0xAA64D611, 0x580F5512, 0x4B5FA6E6, 0xB93425E5, 0x6DFE410E, 0x9F95C20D, 0x8CC531F9, 0x7EAEB2FA,
+    0x30E349B1, 0xC288CAB2, 0xD1D83946, 0x23B3BA45, 0xF779DEAE, 0x05125DAD, 0x1642AE59, 0xE4292D5A,
+    0xBA3A117E, 0x4851927D, 0x5B016189, 0xA96AE28A, 0x7DA08661, 0x8FCB0562, 0x9C9BF696, 0x6EF07595,
+    0x417B1DBC, 0xB3109EBF, 0xA0406D4B, 0x522BEE48, 0x86E18AA3, 0x748A09A0, 0x67DAFA54, 0x95B17957,
+    0xCBA24573, 0x39C9C670, 0x2A993584, 0xD8F2B687, 0x0C38D26C, 0xFE53516F, 0xED03A29B, 0x1F682198,
+    0x5125DAD3, 0xA34E59D0, 0xB01EAA24, 0x42752927, 0x96BF4DCC, 0x64D4CECF, 0x77843D3B, 0x85EFBE38,
+    0xDBFC821C, 0x2997011F, 0x3AC7F2EB, 0xC8AC71E8, 0x1C661503, 0xEE0D9600, 0xFD5D65F4, 0x0F36E6F7,
+    0x61C69362, 0x93AD1061, 0x80FDE395, 0x72966096, 0xA65C047D, 0x5437877E, 0x4767748A, 0xB50CF789,
+    0xEB1FCBAD, 0x197448AE, 0x0A24BB5A, 0xF84F3859, 0x2C855CB2, 0xDEEEDFB1, 0xCDBE2C45, 0x3FD5AF46,
+    0x7198540D, 0x83F3D70E, 0x90A324FA, 0x62C8A7F9, 0xB602C312, 0x44694011, 0x5739B3E5, 0xA55230E6,
+    0xFB410CC2, 0x092A8FC1, 0x1A7A7C35, 0xE811FF36, 0x3CDB9BDD, 0xCEB018DE, 0xDDE0EB2A, 0x2F8B6829,
+    0x82F63B78, 0x709DB87B, 0x63CD4B8F, 0x91A6C88C, 0x456CAC67, 0xB7072F64, 0xA457DC90, 0x563C5F93,
+    0x082F63B7, 0xFA44E0B4, 0xE9141340, 0x1B7F9043, 0xCFB5F4A8, 0x3DDE77AB, 0x2E8E845F, 0xDCE5075C,
+    0x92A8FC17, 0x60C37F14, 0x73938CE0, 0x81F80FE3, 0x55326B08, 0xA759E80B, 0xB4091BFF, 0x466298FC,
+    0x1871A4D8, 0xEA1A27DB, 0xF94AD42F, 0x0B21572C, 0xDFEB33C7, 0x2D80B0C4, 0x3ED04330, 0xCCBBC033,
+    0xA24BB5A6, 0x502036A5, 0x4370C551, 0xB11B4652, 0x65D122B9, 0x97BAA1BA, 0x84EA524E, 0x7681D14D,
+    0x2892ED69, 0xDAF96E6A, 0xC9A99D9E, 0x3BC21E9D, 0xEF087A76, 0x1D63F975, 0x0E330A81, 0xFC588982,
+    0xB21572C9, 0x407EF1CA, 0x532E023E, 0xA145813D, 0x758FE5D6, 0x87E466D5, 0x94B49521, 0x66DF1622,
+    0x38CC2A06, 0xCAA7A905, 0xD9F75AF1, 0x2B9CD9F2, 0xFF56BD19, 0x0D3D3E1A, 0x1E6DCDEE, 0xEC064EED,
+    0xC38D26C4, 0x31E6A5C7, 0x22B65633, 0xD0DDD530, 0x0417B1DB, 0xF67C32D8, 0xE52CC12C, 0x1747422F,
+    0x49547E0B, 0xBB3FFD08, 0xA86F0EFC, 0x5A048DFF, 0x8ECEE914, 0x7CA56A17, 0x6FF599E3, 0x9D9E1AE0,
+    0xD3D3E1AB, 0x21B862A8, 0x32E8915C, 0xC083125F, 0x144976B4, 0xE622F5B7, 0xF5720643, 0x07198540,
+    0x590AB964, 0xAB613A67, 0xB831C993, 0x4A5A4A90, 0x9E902E7B, 0x6CFBAD78, 0x7FAB5E8C, 0x8DC0DD8F,
+    0xE330A81A, 0x115B2B19, 0x020BD8ED, 0xF0605BEE, 0x24AA3F05, 0xD6C1BC06, 0xC5914FF2, 0x37FACCF1,
+    0x69E9F0D5, 0x9B8273D6, 0x88D28022, 0x7AB90321, 0xAE7367CA, 0x5C18E4C9, 0x4F48173D, 0xBD23943E,
+    0xF36E6F75, 0x0105EC76, 0x12551F82, 0xE03E9C81, 0x34F4F86A, 0xC69F7B69, 0xD5CF889D, 0x27A40B9E,
+    0x79B737BA, 0x8BDCB4B9, 0x988C474D, 0x6AE7C44E, 0xBE2DA0A5, 0x4C4623A6, 0x5F16D052, 0xAD7D5351,
+];
+var lookupTable = uint32ArrayFrom(a_lookupTable);
+export { AwsCrc32c } from "./aws_crc32c";
+//# sourceMappingURL=index.js.map
--- a/backend/node_modules/@aws-crypto/crc32c/build/module/index.js.map
+++ b/backend/node_modules/@aws-crypto/crc32c/build/module/index.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../src/index.ts"],"names":[],"mappings":"AAAA,oEAAoE;AACpE,sCAAsC;;AAEtC,OAAO,EAAC,eAAe,EAAC,MAAM,kBAAkB,CAAC;AAEjD,MAAM,UAAU,MAAM,CAAC,IAAgB;IACrC,OAAO,IAAI,MAAM,EAAE,CAAC,MAAM,CAAC,IAAI,CAAC,CAAC,MAAM,EAAE,CAAC;AAC5C,CAAC;AAED;IAAA;QACU,aAAQ,GAAG,UAAU,CAAC;IAchC,CAAC;IAZC,uBAAM,GAAN,UAAO,IAAgB;;;YACrB,KAAmB,IAAA,SAAA,SAAA,IAAI,CAAA,0BAAA,4CAAE;gBAApB,IAAM,IAAI,iBAAA;gBACb,IAAI,CAAC,QAAQ;oBACX,CAAC,IAAI,CAAC,QAAQ,KAAK,CAAC,CAAC,GAAG,WAAW,CAAC,CAAC,IAAI,CAAC,QAAQ,GAAG,IAAI,CAAC,GAAG,IAAI,CAAC,CAAC;aACtE;;;;;;;;;QAED,OAAO,IAAI,CAAC;IACd,CAAC;IAED,uBAAM,GAAN;QACE,OAAO,CAAC,IAAI,CAAC,QAAQ,GAAG,UAAU,CAAC,KAAK,CAAC,CAAC;IAC5C,CAAC;IACH,aAAC;AAAD,CAAC,AAfD,IAeC;;AAED,kBAAkB;AAClB,IAAM,aAAa,GAAG;IACpB,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;IAC9F,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU,EAAE,UAAU;CAC/F,CAAC;AAEF,IAAM,WAAW,GAAgB,eAAe,CAAC,aAAa,CAAC,CAAA;AAC/D,OAAO,EAAE,SAAS,EAAE,MAAM,cAAc,CAAC"}
--- a/backend/node_modules/@aws-crypto/crc32c/package.json
+++ b/backend/node_modules/@aws-crypto/crc32c/package.json
@@ -0,0 +1,32 @@
+{
+  "name": "@aws-crypto/crc32c",
+  "version": "5.2.0",
+  "scripts": {
+    "prepublishOnly": "tsc -p tsconfig.json && tsc -p tsconfig.module.json",
+    "pretest": "tsc -p tsconfig.test.json",
+    "test": "mocha --require ts-node/register test/**/*test.ts"
+  },
+  "main": "./build/main/index.js",
+  "module": "./build/module/index.js",
+  "types": "./build/main/index.d.ts",
+  "repository": {
+    "type": "git",
+    "url": "git@github.com:aws/aws-sdk-js-crypto-helpers.git"
+  },
+  "author": {
+    "name": "AWS Crypto Tools Team",
+    "email": "aws-cryptools@amazon.com",
+    "url": "https://docs.aws.amazon.com/aws-crypto-tools/index.html?id=docs_gateway#lang/en_us"
+  },
+  "homepage": "https://github.com/aws/aws-sdk-js-crypto-helpers/tree/master/packages/crc32c",
+  "license": "Apache-2.0",
+  "dependencies": {
+    "@aws-crypto/util": "^5.2.0",
+    "@aws-sdk/types": "^3.222.0",
+    "tslib": "^2.6.2"
+  },
+  "publishConfig": {
+    "access": "public"
+  },
+  "gitHead": "c11b171b35ec5c093364f0e0d8dc4ab1af68e748"
+}
--- a/backend/node_modules/@aws-crypto/crc32c/src/aws_crc32c.ts
+++ b/backend/node_modules/@aws-crypto/crc32c/src/aws_crc32c.ts
@@ -0,0 +1,24 @@
+// Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+import { Checksum, SourceData } from "@aws-sdk/types";
+import { convertToBuffer, isEmptyData, numToUint8 } from "@aws-crypto/util";
+import { Crc32c } from "./index";
+
+export class AwsCrc32c implements Checksum {
+  private crc32c = new Crc32c();
+
+  update(toHash: SourceData) {
+    if (isEmptyData(toHash)) return;
+
+    this.crc32c.update(convertToBuffer(toHash));
+  }
+
+  async digest(): Promise<Uint8Array> {
+    return numToUint8(this.crc32c.digest());
+  }
+
+  reset(): void {
+    this.crc32c = new Crc32c();
+  }
+}
--- a/backend/node_modules/@aws-crypto/crc32c/src/index.ts
+++ b/backend/node_modules/@aws-crypto/crc32c/src/index.ts
@@ -0,0 +1,64 @@
+// Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+
+import {uint32ArrayFrom} from "@aws-crypto/util";
+
+export function crc32c(data: Uint8Array): number {
+  return new Crc32c().update(data).digest();
+}
+
+export class Crc32c {
+  private checksum = 0xffffffff;
+
+  update(data: Uint8Array): this {
+    for (const byte of data) {
+      this.checksum =
+        (this.checksum >>> 8) ^ lookupTable[(this.checksum ^ byte) & 0xff];
+    }
+
+    return this;
+  }
+
+  digest(): number {
+    return (this.checksum ^ 0xffffffff) >>> 0;
+  }
+}
+
+// prettier-ignore
+const a_lookupTable = [
+  0x00000000, 0xF26B8303, 0xE13B70F7, 0x1350F3F4, 0xC79A971F, 0x35F1141C, 0x26A1E7E8, 0xD4CA64EB,
+  0x8AD958CF, 0x78B2DBCC, 0x6BE22838, 0x9989AB3B, 0x4D43CFD0, 0xBF284CD3, 0xAC78BF27, 0x5E133C24,
+  0x105EC76F, 0xE235446C, 0xF165B798, 0x030E349B, 0xD7C45070, 0x25AFD373, 0x36FF2087, 0xC494A384,
+  0x9A879FA0, 0x68EC1CA3, 0x7BBCEF57, 0x89D76C54, 0x5D1D08BF, 0xAF768BBC, 0xBC267848, 0x4E4DFB4B,
+  0x20BD8EDE, 0xD2D60DDD, 0xC186FE29, 0x33ED7D2A, 0xE72719C1, 0x154C9AC2, 0x061C6936, 0xF477EA35,
+  0xAA64D611, 0x580F5512, 0x4B5FA6E6, 0xB93425E5, 0x6DFE410E, 0x9F95C20D, 0x8CC531F9, 0x7EAEB2FA,
+  0x30E349B1, 0xC288CAB2, 0xD1D83946, 0x23B3BA45, 0xF779DEAE, 0x05125DAD, 0x1642AE59, 0xE4292D5A,
+  0xBA3A117E, 0x4851927D, 0x5B016189, 0xA96AE28A, 0x7DA08661, 0x8FCB0562, 0x9C9BF696, 0x6EF07595,
+  0x417B1DBC, 0xB3109EBF, 0xA0406D4B, 0x522BEE48, 0x86E18AA3, 0x748A09A0, 0x67DAFA54, 0x95B17957,
+  0xCBA24573, 0x39C9C670, 0x2A993584, 0xD8F2B687, 0x0C38D26C, 0xFE53516F, 0xED03A29B, 0x1F682198,
+  0x5125DAD3, 0xA34E59D0, 0xB01EAA24, 0x42752927, 0x96BF4DCC, 0x64D4CECF, 0x77843D3B, 0x85EFBE38,
+  0xDBFC821C, 0x2997011F, 0x3AC7F2EB, 0xC8AC71E8, 0x1C661503, 0xEE0D9600, 0xFD5D65F4, 0x0F36E6F7,
+  0x61C69362, 0x93AD1061, 0x80FDE395, 0x72966096, 0xA65C047D, 0x5437877E, 0x4767748A, 0xB50CF789,
+  0xEB1FCBAD, 0x197448AE, 0x0A24BB5A, 0xF84F3859, 0x2C855CB2, 0xDEEEDFB1, 0xCDBE2C45, 0x3FD5AF46,
+  0x7198540D, 0x83F3D70E, 0x90A324FA, 0x62C8A7F9, 0xB602C312, 0x44694011, 0x5739B3E5, 0xA55230E6,
+  0xFB410CC2, 0x092A8FC1, 0x1A7A7C35, 0xE811FF36, 0x3CDB9BDD, 0xCEB018DE, 0xDDE0EB2A, 0x2F8B6829,
+  0x82F63B78, 0x709DB87B, 0x63CD4B8F, 0x91A6C88C, 0x456CAC67, 0xB7072F64, 0xA457DC90, 0x563C5F93,
+  0x082F63B7, 0xFA44E0B4, 0xE9141340, 0x1B7F9043, 0xCFB5F4A8, 0x3DDE77AB, 0x2E8E845F, 0xDCE5075C,
+  0x92A8FC17, 0x60C37F14, 0x73938CE0, 0x81F80FE3, 0x55326B08, 0xA759E80B, 0xB4091BFF, 0x466298FC,
+  0x1871A4D8, 0xEA1A27DB, 0xF94AD42F, 0x0B21572C, 0xDFEB33C7, 0x2D80B0C4, 0x3ED04330, 0xCCBBC033,
+  0xA24BB5A6, 0x502036A5, 0x4370C551, 0xB11B4652, 0x65D122B9, 0x97BAA1BA, 0x84EA524E, 0x7681D14D,
+  0x2892ED69, 0xDAF96E6A, 0xC9A99D9E, 0x3BC21E9D, 0xEF087A76, 0x1D63F975, 0x0E330A81, 0xFC588982,
+  0xB21572C9, 0x407EF1CA, 0x532E023E, 0xA145813D, 0x758FE5D6, 0x87E466D5, 0x94B49521, 0x66DF1622,
+  0x38CC2A06, 0xCAA7A905, 0xD9F75AF1, 0x2B9CD9F2, 0xFF56BD19, 0x0D3D3E1A, 0x1E6DCDEE, 0xEC064EED,
+  0xC38D26C4, 0x31E6A5C7, 0x22B65633, 0xD0DDD530, 0x0417B1DB, 0xF67C32D8, 0xE52CC12C, 0x1747422F,
+  0x49547E0B, 0xBB3FFD08, 0xA86F0EFC, 0x5A048DFF, 0x8ECEE914, 0x7CA56A17, 0x6FF599E3, 0x9D9E1AE0,
+  0xD3D3E1AB, 0x21B862A8, 0x32E8915C, 0xC083125F, 0x144976B4, 0xE622F5B7, 0xF5720643, 0x07198540,
+  0x590AB964, 0xAB613A67, 0xB831C993, 0x4A5A4A90, 0x9E902E7B, 0x6CFBAD78, 0x7FAB5E8C, 0x8DC0DD8F,
+  0xE330A81A, 0x115B2B19, 0x020BD8ED, 0xF0605BEE, 0x24AA3F05, 0xD6C1BC06, 0xC5914FF2, 0x37FACCF1,
+  0x69E9F0D5, 0x9B8273D6, 0x88D28022, 0x7AB90321, 0xAE7367CA, 0x5C18E4C9, 0x4F48173D, 0xBD23943E,
+  0xF36E6F75, 0x0105EC76, 0x12551F82, 0xE03E9C81, 0x34F4F86A, 0xC69F7B69, 0xD5CF889D, 0x27A40B9E,
+  0x79B737BA, 0x8BDCB4B9, 0x988C474D, 0x6AE7C44E, 0xBE2DA0A5, 0x4C4623A6, 0x5F16D052, 0xAD7D5351,
+];
+
+const lookupTable: Uint32Array = uint32ArrayFrom(a_lookupTable)
+export { AwsCrc32c } from "./aws_crc32c";
--- a/backend/node_modules/@aws-crypto/crc32c/tsconfig.json
+++ b/backend/node_modules/@aws-crypto/crc32c/tsconfig.json
@@ -0,0 +1,9 @@
+{
+  "extends": "../tsconfig.json",
+  "compilerOptions": {
+    "rootDir": "./src",
+    "outDir": "./build/main",
+  },
+  "include": ["src/**/*.ts"],
+  "exclude": ["node_modules/**"]
+}
--- a/backend/node_modules/@aws-crypto/crc32c/tsconfig.module.json
+++ b/backend/node_modules/@aws-crypto/crc32c/tsconfig.module.json
@@ -0,0 +1,7 @@
+{
+  "extends": "./tsconfig",
+  "compilerOptions": {
+    "outDir": "build/module",
+    "module": "esnext",
+  }
+}
--- a/backend/node_modules/@aws-crypto/sha1-browser/CHANGELOG.md
+++ b/backend/node_modules/@aws-crypto/sha1-browser/CHANGELOG.md
@@ -0,0 +1,62 @@
+# Change Log
+
+All notable changes to this project will be documented in this file.
+See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
+
+# [5.2.0](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v5.1.0...v5.2.0) (2023-10-16)
+
+### Features
+
+- support ESM artifacts in all packages ([#752](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/752)) ([e930ffb](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/e930ffba5cfef66dd242049e7d514ced232c1e3b))
+
+# [5.1.0](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v5.0.0...v5.1.0) (2023-09-22)
+
+### Bug Fixes
+
+- Update tsc to 2.x ([#735](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/735)) ([782e0de](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/782e0de9f5fef41f694130580a69d940894b6b8c))
+
+### Features
+
+- Use @smithy/util-utf8 ([#730](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/730)) ([00fb851](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/00fb851ca3559d5a1f370f9256814de1210826b8)), closes [#699](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/699)
+
+# [5.0.0](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v4.0.1...v5.0.0) (2023-07-13)
+
+- feat!: drop support for IE 11 (#629) ([6c49fb6](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/6c49fb6c1b1f18bbff02dbd77a37a21bdb40c959)), closes [#629](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/629)
+
+### BREAKING CHANGES
+
+- Remove support for IE11
+
+Co-authored-by: texastony <5892063+texastony@users.noreply.github.com>
+
+# [4.0.0](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v3.0.0...v4.0.0) (2023-02-20)
+
+**Note:** Version bump only for package @aws-crypto/sha1-browser
+
+# [3.0.0](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v2.0.2...v3.0.0) (2023-01-12)
+
+- feat!: replace Hash implementations with Checksum interface (#492) ([da43dc0](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/da43dc0fdf669d9ebb5bfb1b1f7c79e46c4aaae1)), closes [#492](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/492)
+
+### BREAKING CHANGES
+
+- All classes that implemented `Hash` now implement `Checksum`.
+
+## [2.0.2](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v2.0.1...v2.0.2) (2022-09-07)
+
+### Bug Fixes
+
+- **#337:** update @aws-sdk/types ([#373](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/373)) ([b26a811](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/b26a811a392f5209c7ec7e57251500d4d78f97ff)), closes [#337](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/337)
+
+# [2.0.0](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v1.2.2...v2.0.0) (2021-10-25)
+
+**Note:** Version bump only for package @aws-crypto/sha1-browser
+
+# [1.2.0](https://github.com/aws/aws-sdk-js-crypto-helpers/compare/v1.1.1...v1.2.0) (2021-09-17)
+
+### Bug Fixes
+
+- Adding ie11-detection dependency to sha1-browser ([#213](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/213)) ([138750d](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/138750d96385b8cc479b6f54c500ee1b5380648c))
+
+### Features
+
+- Add SHA1 ([#208](https://github.com/aws/aws-sdk-js-crypto-helpers/issues/208)) ([45c50ff](https://github.com/aws/aws-sdk-js-crypto-helpers/commit/45c50ffa3acc9e3bf4039ab59a0102e4d40455ec))
--- a/backend/node_modules/@aws-crypto/sha1-browser/LICENSE
+++ b/backend/node_modules/@aws-crypto/sha1-browser/LICENSE
@@ -0,0 +1,202 @@
+
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--- a/backend/node_modules/@aws-crypto/sha1-browser/README.md
+++ b/backend/node_modules/@aws-crypto/sha1-browser/README.md
@@ -0,0 +1,21 @@
+# @aws-crypto/sha1-browser
+
+SHA1 wrapper for browsers that prefers `window.crypto.subtle`.
+
+SHA1 is **NOT** a cryptographically secure algorithm.
+It should _only_ be used for non cryptographic functions like checksums.
+
+## Usage
+
+```
+import {Sha1} from '@aws-crypto/sha1-browser'
+
+const hash = new Sha1();
+hash.update('some data');
+const result = await hash.digest();
+
+```
+
+## Test
+
+`npm test`
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/main/constants.d.ts
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/main/constants.d.ts
@@ -0,0 +1,10 @@
+export declare const SHA_1_HASH: {
+    name: "SHA-1";
+};
+export declare const SHA_1_HMAC_ALGO: {
+    name: "HMAC";
+    hash: {
+        name: "SHA-1";
+    };
+};
+export declare const EMPTY_DATA_SHA_1: Uint8Array;
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/main/constants.js
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/main/constants.js
@@ -0,0 +1,31 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.EMPTY_DATA_SHA_1 = exports.SHA_1_HMAC_ALGO = exports.SHA_1_HASH = void 0;
+exports.SHA_1_HASH = { name: "SHA-1" };
+exports.SHA_1_HMAC_ALGO = {
+    name: "HMAC",
+    hash: exports.SHA_1_HASH,
+};
+exports.EMPTY_DATA_SHA_1 = new Uint8Array([
+    218,
+    57,
+    163,
+    238,
+    94,
+    107,
+    75,
+    13,
+    50,
+    85,
+    191,
+    239,
+    149,
+    96,
+    24,
+    144,
+    175,
+    216,
+    7,
+    9,
+]);
+//# sourceMappingURL=constants.js.map
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/main/constants.js.map
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/main/constants.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"constants.js","sourceRoot":"","sources":["../../src/constants.ts"],"names":[],"mappings":";;;AAAa,QAAA,UAAU,GAAsB,EAAE,IAAI,EAAE,OAAO,EAAE,CAAC;AAElD,QAAA,eAAe,GAA8C;IACxE,IAAI,EAAE,MAAM;IACZ,IAAI,EAAE,kBAAU;CACjB,CAAC;AAEW,QAAA,gBAAgB,GAAG,IAAI,UAAU,CAAC;IAC7C,GAAG;IACH,EAAE;IACF,GAAG;IACH,GAAG;IACH,EAAE;IACF,GAAG;IACH,EAAE;IACF,EAAE;IACF,EAAE;IACF,EAAE;IACF,GAAG;IACH,GAAG;IACH,GAAG;IACH,EAAE;IACF,EAAE;IACF,GAAG;IACH,GAAG;IACH,GAAG;IACH,CAAC;IACD,CAAC;CACF,CAAC,CAAC"}
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/main/crossPlatformSha1.d.ts
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/main/crossPlatformSha1.d.ts
@@ -0,0 +1,8 @@
+import { Checksum, SourceData } from "@aws-sdk/types";
+export declare class Sha1 implements Checksum {
+    private hash;
+    constructor(secret?: SourceData);
+    update(data: SourceData, encoding?: "utf8" | "ascii" | "latin1"): void;
+    digest(): Promise<Uint8Array>;
+    reset(): void;
+}
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/main/crossPlatformSha1.js
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/main/crossPlatformSha1.js
@@ -0,0 +1,29 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Sha1 = void 0;
+var webCryptoSha1_1 = require("./webCryptoSha1");
+var supports_web_crypto_1 = require("@aws-crypto/supports-web-crypto");
+var util_locate_window_1 = require("@aws-sdk/util-locate-window");
+var util_1 = require("@aws-crypto/util");
+var Sha1 = /** @class */ (function () {
+    function Sha1(secret) {
+        if ((0, supports_web_crypto_1.supportsWebCrypto)((0, util_locate_window_1.locateWindow)())) {
+            this.hash = new webCryptoSha1_1.Sha1(secret);
+        }
+        else {
+            throw new Error("SHA1 not supported");
+        }
+    }
+    Sha1.prototype.update = function (data, encoding) {
+        this.hash.update((0, util_1.convertToBuffer)(data));
+    };
+    Sha1.prototype.digest = function () {
+        return this.hash.digest();
+    };
+    Sha1.prototype.reset = function () {
+        this.hash.reset();
+    };
+    return Sha1;
+}());
+exports.Sha1 = Sha1;
+//# sourceMappingURL=crossPlatformSha1.js.map
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/main/crossPlatformSha1.js.map
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/main/crossPlatformSha1.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"crossPlatformSha1.js","sourceRoot":"","sources":["../../src/crossPlatformSha1.ts"],"names":[],"mappings":";;;AAAA,iDAAwD;AAExD,uEAAoE;AACpE,kEAA2D;AAC3D,yCAAmD;AAEnD;IAGE,cAAY,MAAmB;QAC7B,IAAI,IAAA,uCAAiB,EAAC,IAAA,iCAAY,GAAE,CAAC,EAAE;YACrC,IAAI,CAAC,IAAI,GAAG,IAAI,oBAAa,CAAC,MAAM,CAAC,CAAC;SACvC;aAAM;YACL,MAAM,IAAI,KAAK,CAAC,oBAAoB,CAAC,CAAC;SACvC;IACH,CAAC;IAED,qBAAM,GAAN,UAAO,IAAgB,EAAE,QAAsC;QAC7D,IAAI,CAAC,IAAI,CAAC,MAAM,CAAC,IAAA,sBAAe,EAAC,IAAI,CAAC,CAAC,CAAC;IAC1C,CAAC;IAED,qBAAM,GAAN;QACE,OAAO,IAAI,CAAC,IAAI,CAAC,MAAM,EAAE,CAAC;IAC5B,CAAC;IAED,oBAAK,GAAL;QACE,IAAI,CAAC,IAAI,CAAC,KAAK,EAAE,CAAC;IACpB,CAAC;IACH,WAAC;AAAD,CAAC,AAtBD,IAsBC;AAtBY,oBAAI"}
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/main/index.d.ts
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/main/index.d.ts
@@ -0,0 +1,2 @@
+export * from "./crossPlatformSha1";
+export { Sha1 as WebCryptoSha1 } from "./webCryptoSha1";
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/main/index.js
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/main/index.js
@@ -0,0 +1,8 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.WebCryptoSha1 = void 0;
+var tslib_1 = require("tslib");
+tslib_1.__exportStar(require("./crossPlatformSha1"), exports);
+var webCryptoSha1_1 = require("./webCryptoSha1");
+Object.defineProperty(exports, "WebCryptoSha1", { enumerable: true, get: function () { return webCryptoSha1_1.Sha1; } });
+//# sourceMappingURL=index.js.map
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/main/index.js.map
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/main/index.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../src/index.ts"],"names":[],"mappings":";;;;AAAA,8DAAoC;AACpC,iDAAwD;AAA/C,8GAAA,IAAI,OAAiB"}
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/main/isEmptyData.d.ts
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/main/isEmptyData.d.ts
@@ -0,0 +1,2 @@
+import { SourceData } from "@aws-sdk/types";
+export declare function isEmptyData(data: SourceData): boolean;
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/main/isEmptyData.js
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/main/isEmptyData.js
@@ -0,0 +1,11 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.isEmptyData = void 0;
+function isEmptyData(data) {
+    if (typeof data === "string") {
+        return data.length === 0;
+    }
+    return data.byteLength === 0;
+}
+exports.isEmptyData = isEmptyData;
+//# sourceMappingURL=isEmptyData.js.map
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/main/isEmptyData.js.map
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/main/isEmptyData.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"isEmptyData.js","sourceRoot":"","sources":["../../src/isEmptyData.ts"],"names":[],"mappings":";;;AAEA,SAAgB,WAAW,CAAC,IAAgB;IAC1C,IAAI,OAAO,IAAI,KAAK,QAAQ,EAAE;QAC5B,OAAO,IAAI,CAAC,MAAM,KAAK,CAAC,CAAC;KAC1B;IAED,OAAO,IAAI,CAAC,UAAU,KAAK,CAAC,CAAC;AAC/B,CAAC;AAND,kCAMC"}
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/main/webCryptoSha1.d.ts
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/main/webCryptoSha1.d.ts
@@ -0,0 +1,9 @@
+import { Checksum, SourceData } from "@aws-sdk/types";
+export declare class Sha1 implements Checksum {
+    private readonly key;
+    private toHash;
+    constructor(secret?: SourceData);
+    update(data: SourceData): void;
+    digest(): Promise<Uint8Array>;
+    reset(): void;
+}
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/main/webCryptoSha1.js
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/main/webCryptoSha1.js
@@ -0,0 +1,61 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Sha1 = void 0;
+var util_utf8_1 = require("@smithy/util-utf8");
+var isEmptyData_1 = require("./isEmptyData");
+var constants_1 = require("./constants");
+var util_locate_window_1 = require("@aws-sdk/util-locate-window");
+var Sha1 = /** @class */ (function () {
+    function Sha1(secret) {
+        this.toHash = new Uint8Array(0);
+        if (secret !== void 0) {
+            this.key = new Promise(function (resolve, reject) {
+                (0, util_locate_window_1.locateWindow)()
+                    .crypto.subtle.importKey("raw", convertToBuffer(secret), constants_1.SHA_1_HMAC_ALGO, false, ["sign"])
+                    .then(resolve, reject);
+            });
+            this.key.catch(function () { });
+        }
+    }
+    Sha1.prototype.update = function (data) {
+        if ((0, isEmptyData_1.isEmptyData)(data)) {
+            return;
+        }
+        var update = convertToBuffer(data);
+        var typedArray = new Uint8Array(this.toHash.byteLength + update.byteLength);
+        typedArray.set(this.toHash, 0);
+        typedArray.set(update, this.toHash.byteLength);
+        this.toHash = typedArray;
+    };
+    Sha1.prototype.digest = function () {
+        var _this = this;
+        if (this.key) {
+            return this.key.then(function (key) {
+                return (0, util_locate_window_1.locateWindow)()
+                    .crypto.subtle.sign(constants_1.SHA_1_HMAC_ALGO, key, _this.toHash)
+                    .then(function (data) { return new Uint8Array(data); });
+            });
+        }
+        if ((0, isEmptyData_1.isEmptyData)(this.toHash)) {
+            return Promise.resolve(constants_1.EMPTY_DATA_SHA_1);
+        }
+        return Promise.resolve()
+            .then(function () { return (0, util_locate_window_1.locateWindow)().crypto.subtle.digest(constants_1.SHA_1_HASH, _this.toHash); })
+            .then(function (data) { return Promise.resolve(new Uint8Array(data)); });
+    };
+    Sha1.prototype.reset = function () {
+        this.toHash = new Uint8Array(0);
+    };
+    return Sha1;
+}());
+exports.Sha1 = Sha1;
+function convertToBuffer(data) {
+    if (typeof data === "string") {
+        return (0, util_utf8_1.fromUtf8)(data);
+    }
+    if (ArrayBuffer.isView(data)) {
+        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength / Uint8Array.BYTES_PER_ELEMENT);
+    }
+    return new Uint8Array(data);
+}
+//# sourceMappingURL=webCryptoSha1.js.map
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/main/webCryptoSha1.js.map
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/main/webCryptoSha1.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"webCryptoSha1.js","sourceRoot":"","sources":["../../src/webCryptoSha1.ts"],"names":[],"mappings":";;;AACA,+CAA6C;AAC7C,6CAA4C;AAC5C,yCAA4E;AAC5E,kEAA2D;AAE3D;IAIE,cAAY,MAAmB;QAFvB,WAAM,GAAe,IAAI,UAAU,CAAC,CAAC,CAAC,CAAC;QAG7C,IAAI,MAAM,KAAK,KAAK,CAAC,EAAE;YACrB,IAAI,CAAC,GAAG,GAAG,IAAI,OAAO,CAAC,UAAC,OAAO,EAAE,MAAM;gBACrC,IAAA,iCAAY,GAAE;qBACX,MAAM,CAAC,MAAM,CAAC,SAAS,CACtB,KAAK,EACL,eAAe,CAAC,MAAM,CAAC,EACvB,2BAAe,EACf,KAAK,EACL,CAAC,MAAM,CAAC,CACT;qBACA,IAAI,CAAC,OAAO,EAAE,MAAM,CAAC,CAAC;YAC3B,CAAC,CAAC,CAAC;YACH,IAAI,CAAC,GAAG,CAAC,KAAK,CAAC,cAAO,CAAC,CAAC,CAAC;SAC1B;IACH,CAAC;IAED,qBAAM,GAAN,UAAO,IAAgB;QACrB,IAAI,IAAA,yBAAW,EAAC,IAAI,CAAC,EAAE;YACrB,OAAO;SACR;QAED,IAAM,MAAM,GAAG,eAAe,CAAC,IAAI,CAAC,CAAC;QACrC,IAAM,UAAU,GAAG,IAAI,UAAU,CAC/B,IAAI,CAAC,MAAM,CAAC,UAAU,GAAG,MAAM,CAAC,UAAU,CAC3C,CAAC;QACF,UAAU,CAAC,GAAG,CAAC,IAAI,CAAC,MAAM,EAAE,CAAC,CAAC,CAAC;QAC/B,UAAU,CAAC,GAAG,CAAC,MAAM,EAAE,IAAI,CAAC,MAAM,CAAC,UAAU,CAAC,CAAC;QAC/C,IAAI,CAAC,MAAM,GAAG,UAAU,CAAC;IAC3B,CAAC;IAED,qBAAM,GAAN;QAAA,iBAgBC;QAfC,IAAI,IAAI,CAAC,GAAG,EAAE;YACZ,OAAO,IAAI,CAAC,GAAG,CAAC,IAAI,CAAC,UAAC,GAAG;gBACvB,OAAA,IAAA,iCAAY,GAAE;qBACX,MAAM,CAAC,MAAM,CAAC,IAAI,CAAC,2BAAe,EAAE,GAAG,EAAE,KAAI,CAAC,MAAM,CAAC;qBACrD,IAAI,CAAC,UAAC,IAAI,IAAK,OAAA,IAAI,UAAU,CAAC,IAAI,CAAC,EAApB,CAAoB,CAAC;YAFvC,CAEuC,CACxC,CAAC;SACH;QAED,IAAI,IAAA,yBAAW,EAAC,IAAI,CAAC,MAAM,CAAC,EAAE;YAC5B,OAAO,OAAO,CAAC,OAAO,CAAC,4BAAgB,CAAC,CAAC;SAC1C;QAED,OAAO,OAAO,CAAC,OAAO,EAAE;aACrB,IAAI,CAAC,cAAM,OAAA,IAAA,iCAAY,GAAE,CAAC,MAAM,CAAC,MAAM,CAAC,MAAM,CAAC,sBAAU,EAAE,KAAI,CAAC,MAAM,CAAC,EAA5D,CAA4D,CAAC;aACxE,IAAI,CAAC,UAAC,IAAI,IAAK,OAAA,OAAO,CAAC,OAAO,CAAC,IAAI,UAAU,CAAC,IAAI,CAAC,CAAC,EAArC,CAAqC,CAAC,CAAC;IAC3D,CAAC;IAED,oBAAK,GAAL;QACE,IAAI,CAAC,MAAM,GAAG,IAAI,UAAU,CAAC,CAAC,CAAC,CAAC;IAClC,CAAC;IACH,WAAC;AAAD,CAAC,AAxDD,IAwDC;AAxDY,oBAAI;AA0DjB,SAAS,eAAe,CAAC,IAAgB;IACvC,IAAI,OAAO,IAAI,KAAK,QAAQ,EAAE;QAC5B,OAAO,IAAA,oBAAQ,EAAC,IAAI,CAAC,CAAC;KACvB;IAED,IAAI,WAAW,CAAC,MAAM,CAAC,IAAI,CAAC,EAAE;QAC5B,OAAO,IAAI,UAAU,CACnB,IAAI,CAAC,MAAM,EACX,IAAI,CAAC,UAAU,EACf,IAAI,CAAC,UAAU,GAAG,UAAU,CAAC,iBAAiB,CAC/C,CAAC;KACH;IAED,OAAO,IAAI,UAAU,CAAC,IAAI,CAAC,CAAC;AAC9B,CAAC"}
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/module/constants.d.ts
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/module/constants.d.ts
@@ -0,0 +1,10 @@
+export declare const SHA_1_HASH: {
+    name: "SHA-1";
+};
+export declare const SHA_1_HMAC_ALGO: {
+    name: "HMAC";
+    hash: {
+        name: "SHA-1";
+    };
+};
+export declare const EMPTY_DATA_SHA_1: Uint8Array;
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/module/constants.js
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/module/constants.js
@@ -0,0 +1,28 @@
+export var SHA_1_HASH = { name: "SHA-1" };
+export var SHA_1_HMAC_ALGO = {
+    name: "HMAC",
+    hash: SHA_1_HASH,
+};
+export var EMPTY_DATA_SHA_1 = new Uint8Array([
+    218,
+    57,
+    163,
+    238,
+    94,
+    107,
+    75,
+    13,
+    50,
+    85,
+    191,
+    239,
+    149,
+    96,
+    24,
+    144,
+    175,
+    216,
+    7,
+    9,
+]);
+//# sourceMappingURL=constants.js.map
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/module/constants.js.map
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/module/constants.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"constants.js","sourceRoot":"","sources":["../../src/constants.ts"],"names":[],"mappings":"AAAA,MAAM,CAAC,IAAM,UAAU,GAAsB,EAAE,IAAI,EAAE,OAAO,EAAE,CAAC;AAE/D,MAAM,CAAC,IAAM,eAAe,GAA8C;IACxE,IAAI,EAAE,MAAM;IACZ,IAAI,EAAE,UAAU;CACjB,CAAC;AAEF,MAAM,CAAC,IAAM,gBAAgB,GAAG,IAAI,UAAU,CAAC;IAC7C,GAAG;IACH,EAAE;IACF,GAAG;IACH,GAAG;IACH,EAAE;IACF,GAAG;IACH,EAAE;IACF,EAAE;IACF,EAAE;IACF,EAAE;IACF,GAAG;IACH,GAAG;IACH,GAAG;IACH,EAAE;IACF,EAAE;IACF,GAAG;IACH,GAAG;IACH,GAAG;IACH,CAAC;IACD,CAAC;CACF,CAAC,CAAC"}
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/module/crossPlatformSha1.d.ts
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/module/crossPlatformSha1.d.ts
@@ -0,0 +1,8 @@
+import { Checksum, SourceData } from "@aws-sdk/types";
+export declare class Sha1 implements Checksum {
+    private hash;
+    constructor(secret?: SourceData);
+    update(data: SourceData, encoding?: "utf8" | "ascii" | "latin1"): void;
+    digest(): Promise<Uint8Array>;
+    reset(): void;
+}
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/module/crossPlatformSha1.js
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/module/crossPlatformSha1.js
@@ -0,0 +1,26 @@
+import { Sha1 as WebCryptoSha1 } from "./webCryptoSha1";
+import { supportsWebCrypto } from "@aws-crypto/supports-web-crypto";
+import { locateWindow } from "@aws-sdk/util-locate-window";
+import { convertToBuffer } from "@aws-crypto/util";
+var Sha1 = /** @class */ (function () {
+    function Sha1(secret) {
+        if (supportsWebCrypto(locateWindow())) {
+            this.hash = new WebCryptoSha1(secret);
+        }
+        else {
+            throw new Error("SHA1 not supported");
+        }
+    }
+    Sha1.prototype.update = function (data, encoding) {
+        this.hash.update(convertToBuffer(data));
+    };
+    Sha1.prototype.digest = function () {
+        return this.hash.digest();
+    };
+    Sha1.prototype.reset = function () {
+        this.hash.reset();
+    };
+    return Sha1;
+}());
+export { Sha1 };
+//# sourceMappingURL=crossPlatformSha1.js.map
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/module/crossPlatformSha1.js.map
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/module/crossPlatformSha1.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"crossPlatformSha1.js","sourceRoot":"","sources":["../../src/crossPlatformSha1.ts"],"names":[],"mappings":"AAAA,OAAO,EAAE,IAAI,IAAI,aAAa,EAAE,MAAM,iBAAiB,CAAC;AAExD,OAAO,EAAE,iBAAiB,EAAE,MAAM,iCAAiC,CAAC;AACpE,OAAO,EAAE,YAAY,EAAE,MAAM,6BAA6B,CAAC;AAC3D,OAAO,EAAE,eAAe,EAAE,MAAM,kBAAkB,CAAC;AAEnD;IAGE,cAAY,MAAmB;QAC7B,IAAI,iBAAiB,CAAC,YAAY,EAAE,CAAC,EAAE;YACrC,IAAI,CAAC,IAAI,GAAG,IAAI,aAAa,CAAC,MAAM,CAAC,CAAC;SACvC;aAAM;YACL,MAAM,IAAI,KAAK,CAAC,oBAAoB,CAAC,CAAC;SACvC;IACH,CAAC;IAED,qBAAM,GAAN,UAAO,IAAgB,EAAE,QAAsC;QAC7D,IAAI,CAAC,IAAI,CAAC,MAAM,CAAC,eAAe,CAAC,IAAI,CAAC,CAAC,CAAC;IAC1C,CAAC;IAED,qBAAM,GAAN;QACE,OAAO,IAAI,CAAC,IAAI,CAAC,MAAM,EAAE,CAAC;IAC5B,CAAC;IAED,oBAAK,GAAL;QACE,IAAI,CAAC,IAAI,CAAC,KAAK,EAAE,CAAC;IACpB,CAAC;IACH,WAAC;AAAD,CAAC,AAtBD,IAsBC"}
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/module/index.d.ts
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/module/index.d.ts
@@ -0,0 +1,2 @@
+export * from "./crossPlatformSha1";
+export { Sha1 as WebCryptoSha1 } from "./webCryptoSha1";
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/module/index.js
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/module/index.js
@@ -0,0 +1,3 @@
+export * from "./crossPlatformSha1";
+export { Sha1 as WebCryptoSha1 } from "./webCryptoSha1";
+//# sourceMappingURL=index.js.map
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/module/index.js.map
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/module/index.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../src/index.ts"],"names":[],"mappings":"AAAA,cAAc,qBAAqB,CAAC;AACpC,OAAO,EAAE,IAAI,IAAI,aAAa,EAAE,MAAM,iBAAiB,CAAC"}
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/module/isEmptyData.d.ts
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/module/isEmptyData.d.ts
@@ -0,0 +1,2 @@
+import { SourceData } from "@aws-sdk/types";
+export declare function isEmptyData(data: SourceData): boolean;
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/module/isEmptyData.js
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/module/isEmptyData.js
@@ -0,0 +1,7 @@
+export function isEmptyData(data) {
+    if (typeof data === "string") {
+        return data.length === 0;
+    }
+    return data.byteLength === 0;
+}
+//# sourceMappingURL=isEmptyData.js.map
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/module/isEmptyData.js.map
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/module/isEmptyData.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"isEmptyData.js","sourceRoot":"","sources":["../../src/isEmptyData.ts"],"names":[],"mappings":"AAEA,MAAM,UAAU,WAAW,CAAC,IAAgB;IAC1C,IAAI,OAAO,IAAI,KAAK,QAAQ,EAAE;QAC5B,OAAO,IAAI,CAAC,MAAM,KAAK,CAAC,CAAC;KAC1B;IAED,OAAO,IAAI,CAAC,UAAU,KAAK,CAAC,CAAC;AAC/B,CAAC"}
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/module/webCryptoSha1.d.ts
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/module/webCryptoSha1.d.ts
@@ -0,0 +1,9 @@
+import { Checksum, SourceData } from "@aws-sdk/types";
+export declare class Sha1 implements Checksum {
+    private readonly key;
+    private toHash;
+    constructor(secret?: SourceData);
+    update(data: SourceData): void;
+    digest(): Promise<Uint8Array>;
+    reset(): void;
+}
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/module/webCryptoSha1.js
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/module/webCryptoSha1.js
@@ -0,0 +1,58 @@
+import { fromUtf8 } from "@smithy/util-utf8";
+import { isEmptyData } from "./isEmptyData";
+import { EMPTY_DATA_SHA_1, SHA_1_HASH, SHA_1_HMAC_ALGO } from "./constants";
+import { locateWindow } from "@aws-sdk/util-locate-window";
+var Sha1 = /** @class */ (function () {
+    function Sha1(secret) {
+        this.toHash = new Uint8Array(0);
+        if (secret !== void 0) {
+            this.key = new Promise(function (resolve, reject) {
+                locateWindow()
+                    .crypto.subtle.importKey("raw", convertToBuffer(secret), SHA_1_HMAC_ALGO, false, ["sign"])
+                    .then(resolve, reject);
+            });
+            this.key.catch(function () { });
+        }
+    }
+    Sha1.prototype.update = function (data) {
+        if (isEmptyData(data)) {
+            return;
+        }
+        var update = convertToBuffer(data);
+        var typedArray = new Uint8Array(this.toHash.byteLength + update.byteLength);
+        typedArray.set(this.toHash, 0);
+        typedArray.set(update, this.toHash.byteLength);
+        this.toHash = typedArray;
+    };
+    Sha1.prototype.digest = function () {
+        var _this = this;
+        if (this.key) {
+            return this.key.then(function (key) {
+                return locateWindow()
+                    .crypto.subtle.sign(SHA_1_HMAC_ALGO, key, _this.toHash)
+                    .then(function (data) { return new Uint8Array(data); });
+            });
+        }
+        if (isEmptyData(this.toHash)) {
+            return Promise.resolve(EMPTY_DATA_SHA_1);
+        }
+        return Promise.resolve()
+            .then(function () { return locateWindow().crypto.subtle.digest(SHA_1_HASH, _this.toHash); })
+            .then(function (data) { return Promise.resolve(new Uint8Array(data)); });
+    };
+    Sha1.prototype.reset = function () {
+        this.toHash = new Uint8Array(0);
+    };
+    return Sha1;
+}());
+export { Sha1 };
+function convertToBuffer(data) {
+    if (typeof data === "string") {
+        return fromUtf8(data);
+    }
+    if (ArrayBuffer.isView(data)) {
+        return new Uint8Array(data.buffer, data.byteOffset, data.byteLength / Uint8Array.BYTES_PER_ELEMENT);
+    }
+    return new Uint8Array(data);
+}
+//# sourceMappingURL=webCryptoSha1.js.map
--- a/backend/node_modules/@aws-crypto/sha1-browser/build/module/webCryptoSha1.js.map
+++ b/backend/node_modules/@aws-crypto/sha1-browser/build/module/webCryptoSha1.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"webCryptoSha1.js","sourceRoot":"","sources":["../../src/webCryptoSha1.ts"],"names":[],"mappings":"AACA,OAAO,EAAE,QAAQ,EAAE,MAAM,mBAAmB,CAAC;AAC7C,OAAO,EAAE,WAAW,EAAE,MAAM,eAAe,CAAC;AAC5C,OAAO,EAAE,gBAAgB,EAAE,UAAU,EAAE,eAAe,EAAE,MAAM,aAAa,CAAC;AAC5E,OAAO,EAAE,YAAY,EAAE,MAAM,6BAA6B,CAAC;AAE3D;IAIE,cAAY,MAAmB;QAFvB,WAAM,GAAe,IAAI,UAAU,CAAC,CAAC,CAAC,CAAC;QAG7C,IAAI,MAAM,KAAK,KAAK,CAAC,EAAE;YACrB,IAAI,CAAC,GAAG,GAAG,IAAI,OAAO,CAAC,UAAC,OAAO,EAAE,MAAM;gBACrC,YAAY,EAAE;qBACX,MAAM,CAAC,MAAM,CAAC,SAAS,CACtB,KAAK,EACL,eAAe,CAAC,MAAM,CAAC,EACvB,eAAe,EACf,KAAK,EACL,CAAC,MAAM,CAAC,CACT;qBACA,IAAI,CAAC,OAAO,EAAE,MAAM,CAAC,CAAC;YAC3B,CAAC,CAAC,CAAC;YACH,IAAI,CAAC,GAAG,CAAC,KAAK,CAAC,cAAO,CAAC,CAAC,CAAC;SAC1B;IACH,CAAC;IAED,qBAAM,GAAN,UAAO,IAAgB;QACrB,IAAI,WAAW,CAAC,IAAI,CAAC,EAAE;YACrB,OAAO;SACR;QAED,IAAM,MAAM,GAAG,eAAe,CAAC,IAAI,CAAC,CAAC;QACrC,IAAM,UAAU,GAAG,IAAI,UAAU,CAC/B,IAAI,CAAC,MAAM,CAAC,UAAU,GAAG,MAAM,CAAC,UAAU,CAC3C,CAAC;QACF,UAAU,CAAC,GAAG,CAAC,IAAI,CAAC,MAAM,EAAE,CAAC,CAAC,CAAC;QAC/B,UAAU,CAAC,GAAG,CAAC,MAAM,EAAE,IAAI,CAAC,MAAM,CAAC,UAAU,CAAC,CAAC;QAC/C,IAAI,CAAC,MAAM,GAAG,UAAU,CAAC;IAC3B,CAAC;IAED,qBAAM,GAAN;QAAA,iBAgBC;QAfC,IAAI,IAAI,CAAC,GAAG,EAAE;YACZ,OAAO,IAAI,CAAC,GAAG,CAAC,IAAI,CAAC,UAAC,GAAG;gBACvB,OAAA,YAAY,EAAE;qBACX,MAAM,CAAC,MAAM,CAAC,IAAI,CAAC,eAAe,EAAE,GAAG,EAAE,KAAI,CAAC,MAAM,CAAC;qBACrD,IAAI,CAAC,UAAC,IAAI,IAAK,OAAA,IAAI,UAAU,CAAC,IAAI,CAAC,EAApB,CAAoB,CAAC;YAFvC,CAEuC,CACxC,CAAC;SACH;QAED,IAAI,WAAW,CAAC,IAAI,CAAC,MAAM,CAAC,EAAE;YAC5B,OAAO,OAAO,CAAC,OAAO,CAAC,gBAAgB,CAAC,CAAC;SAC1C;QAED,OAAO,OAAO,CAAC,OAAO,EAAE;aACrB,IAAI,CAAC,cAAM,OAAA,YAAY,EAAE,CAAC,MAAM,CAAC,MAAM,CAAC,MAAM,CAAC,UAAU,EAAE,KAAI,CAAC,MAAM,CAAC,EAA5D,CAA4D,CAAC;aACxE,IAAI,CAAC,UAAC,IAAI,IAAK,OAAA,OAAO,CAAC,OAAO,CAAC,IAAI,UAAU,CAAC,IAAI,CAAC,CAAC,EAArC,CAAqC,CAAC,CAAC;IAC3D,CAAC;IAED,oBAAK,GAAL;QACE,IAAI,CAAC,MAAM,GAAG,IAAI,UAAU,CAAC,CAAC,CAAC,CAAC;IAClC,CAAC;IACH,WAAC;AAAD,CAAC,AAxDD,IAwDC;;AAED,SAAS,eAAe,CAAC,IAAgB;IACvC,IAAI,OAAO,IAAI,KAAK,QAAQ,EAAE;QAC5B,OAAO,QAAQ,CAAC,IAAI,CAAC,CAAC;KACvB;IAED,IAAI,WAAW,CAAC,MAAM,CAAC,IAAI,CAAC,EAAE;QAC5B,OAAO,IAAI,UAAU,CACnB,IAAI,CAAC,MAAM,EACX,IAAI,CAAC,UAAU,EACf,IAAI,CAAC,UAAU,GAAG,UAAU,CAAC,iBAAiB,CAC/C,CAAC;KACH;IAED,OAAO,IAAI,UAAU,CAAC,IAAI,CAAC,CAAC;AAC9B,CAAC"}
--- a/backend/node_modules/@aws-crypto/sha1-browser/node_modules/@smithy/is-array-buffer/LICENSE
+++ b/backend/node_modules/@aws-crypto/sha1-browser/node_modules/@smithy/is-array-buffer/LICENSE
@@ -0,0 +1,201 @@
+Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
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--- a/backend/node_modules/@aws-crypto/sha1-browser/node_modules/@smithy/is-array-buffer/README.md
+++ b/backend/node_modules/@aws-crypto/sha1-browser/node_modules/@smithy/is-array-buffer/README.md
@@ -0,0 +1,10 @@
+# @smithy/is-array-buffer
+
+[![NPM version](https://img.shields.io/npm/v/@smithy/is-array-buffer/latest.svg)](https://www.npmjs.com/package/@smithy/is-array-buffer)
+[![NPM downloads](https://img.shields.io/npm/dm/@smithy/is-array-buffer.svg)](https://www.npmjs.com/package/@smithy/is-array-buffer)
+
+> An internal package
+
+## Usage
+
+You probably shouldn't, at least directly.
--- a/Show More
+++ b/Show More
				`@@ -0,0 +1 @@`
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				`@@ -0,0 +1 @@`
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				`@@ -0,0 +1 @@`
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