重构Dify客户端:改为通过FastAPI代理并使用JWT认证
主要变更: - 修改 dify-client.server.ts 使用 JWT 认证通过 FastAPI 后端代理访问 Dify API - 所有 Dify API 路由(chat-messages, parameters, conversations, messages)添加 JWT 获取和传递逻辑 - API_URL 从直连 Dify 改为 FastAPI 后端的 /dify 路由 - 增强 JWT 认证失败的错误处理(返回401状态码) - 添加详细的日志输出,便于调试 安全提升: - DIFY_API_KEY 从前端移至后端,不再暴露在客户端代码 - 使用统一的 JWT 认证体系,提高系统安全性 文档: - 新增 dify-proxy-backend-integration.md - 后端对接文档(包含完整 FastAPI 实现示例) - 新增 dify-frontend-modification-summary.md - 前端修改总结 - 新增 CLAUDE.md - 项目架构说明文档 影响范围: - app/services/dify-client.server.ts - 核心服务层 - app/routes/api.chat-messages.tsx - 聊天消息 - app/routes/api.parameters.tsx - 应用参数 - app/routes/api.conversations.tsx - 会话列表 - app/routes/api.messages.tsx - 消息历史 - app/routes/api.conversations.$id.tsx - 删除会话 - app/routes/api.conversations.$id.name.tsx - 重命名会话 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
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@@ -8,7 +8,23 @@ export async function action({ request }: ActionFunctionArgs) {
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}
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try {
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// 获取用户会话信息和 JWT
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const { getUserSession } = await import("~/api/login/auth.server");
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const { frontendJWT } = await getUserSession(request);
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const { user } = await getSessionInfo(request);
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// 检查 JWT 是否存在
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if (!frontendJWT) {
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console.error('❌ [API] Chat Messages API - JWT不存在');
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return new Response(
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JSON.stringify({ error: 'JWT认证失败,请重新登录' }),
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{
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status: 401,
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headers: { 'Content-Type': 'application/json' },
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}
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);
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}
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const body = await request.json();
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const {
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@@ -27,7 +43,8 @@ export async function action({ request }: ActionFunctionArgs) {
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responseMode,
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hasInputs: !!inputs,
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hasFiles: !!files && files.length > 0,
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filesCount: files?.length || 0
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filesCount: files?.length || 0,
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hasJWT: !!frontendJWT
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});
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const response = await difyClient.createChatMessage(
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@@ -36,7 +53,8 @@ export async function action({ request }: ActionFunctionArgs) {
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user,
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responseMode,
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conversationId,
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files
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files,
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frontendJWT // 传递 JWT
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);
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console.log('📡 [API] Dify响应状态:', {
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@@ -77,10 +95,14 @@ export async function action({ request }: ActionFunctionArgs) {
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stack: error.stack,
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name: error.name
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});
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// 检查是否是JWT认证失败
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const status = error.message?.includes('JWT认证失败') ? 401 : 500;
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return new Response(
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JSON.stringify({ error: error.message || 'Failed to send message' }),
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{
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status: 500,
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status,
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headers: {
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'Content-Type': 'application/json',
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},
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