project init

apps/api/src/auth/guards/jwt-auth.guard.ts

@@ -0,0 +1,83 @@
+import {
+  Injectable,
+  CanActivate,
+  ExecutionContext,
+  UnauthorizedException,
+} from '@nestjs/common';
+import { Reflector } from '@nestjs/core';
+import { JwtService } from '@nestjs/jwt';
+import { AuthService } from '../auth.service';
+import { SupabaseService } from '../supabase.service';
+import { UsersService } from '../../users/users.service';
+import { IS_PUBLIC_KEY } from '../decorators/public.decorator';
+import { JwtPayload } from '../auth.service';
+
+@Injectable()
+export class JwtAuthGuard implements CanActivate {
+  constructor(
+    private reflector: Reflector,
+    private jwtService: JwtService,
+    private authService: AuthService,
+    private supabaseService: SupabaseService,
+    private usersService: UsersService
+  ) {}
+
+  async canActivate(context: ExecutionContext): Promise<boolean> {
+    const isPublic = this.reflector.getAllAndOverride<boolean>(IS_PUBLIC_KEY, [
+      context.getHandler(),
+      context.getClass(),
+    ]);
+
+    if (isPublic) {
+      return true;
+    }
+
+    const request = context.switchToHttp().getRequest();
+    const authHeader = request.headers.authorization;
+
+    if (!authHeader || !authHeader.startsWith('Bearer ')) {
+      throw new UnauthorizedException('Missing or invalid authorization header');
+    }
+
+    const token = authHeader.replace('Bearer ', '');
+
+    try {
+      // 1) Try our own JWT (from POST /auth/exchange)
+      try {
+        const payload = this.jwtService.verify<JwtPayload>(token);
+        const user = await this.authService.validateJwtPayload(payload);
+        if (user) {
+          request.user = user;
+          return true;
+        }
+      } catch {
+        // Not our JWT or expired — try Supabase below
+      }
+
+      // 2) Fallback: Supabase access_token (for backward compatibility)
+      const supabaseUser = await this.supabaseService.verifyToken(token);
+      if (!supabaseUser) {
+        throw new UnauthorizedException('Invalid token');
+      }
+
+      let user = await this.usersService.findBySupabaseId(supabaseUser.id);
+      if (!user) {
+        user = await this.usersService.create({
+          supabaseId: supabaseUser.id,
+          email: supabaseUser.email!,
+          name:
+            supabaseUser.user_metadata?.full_name ||
+            supabaseUser.user_metadata?.name ||
+            null,
+          avatarUrl: supabaseUser.user_metadata?.avatar_url || null,
+        });
+      }
+
+      request.user = user;
+      return true;
+    } catch (error) {
+      if (error instanceof UnauthorizedException) throw error;
+      throw new UnauthorizedException('Token validation failed');
+    }
+  }
+}

apps/api/src/auth/guards/supabase-auth.guard.ts

@@ -0,0 +1,72 @@
+import {
+  Injectable,
+  CanActivate,
+  ExecutionContext,
+  UnauthorizedException,
+} from '@nestjs/common';
+import { Reflector } from '@nestjs/core';
+import { SupabaseService } from '../supabase.service';
+import { UsersService } from '../../users/users.service';
+import { IS_PUBLIC_KEY } from '../decorators/public.decorator';
+
+@Injectable()
+export class SupabaseAuthGuard implements CanActivate {
+  constructor(
+    private reflector: Reflector,
+    private supabaseService: SupabaseService,
+    private usersService: UsersService
+  ) {}
+
+  async canActivate(context: ExecutionContext): Promise<boolean> {
+    // Check if route is public
+    const isPublic = this.reflector.getAllAndOverride<boolean>(IS_PUBLIC_KEY, [
+      context.getHandler(),
+      context.getClass(),
+    ]);
+
+    if (isPublic) {
+      return true;
+    }
+
+    const request = context.switchToHttp().getRequest();
+    const authHeader = request.headers.authorization;
+
+    if (!authHeader || !authHeader.startsWith('Bearer ')) {
+      throw new UnauthorizedException('Missing or invalid authorization header');
+    }
+
+    const token = authHeader.replace('Bearer ', '');
+
+    try {
+      // Validate token with Supabase
+      const supabaseUser = await this.supabaseService.verifyToken(token);
+
+      if (!supabaseUser) {
+        throw new UnauthorizedException('Invalid token');
+      }
+
+      // Find or create user in our database
+      let user = await this.usersService.findBySupabaseId(supabaseUser.id);
+
+      if (!user) {
+        // Auto-create user on first API call
+        user = await this.usersService.create({
+          supabaseId: supabaseUser.id,
+          email: supabaseUser.email!,
+          name:
+            supabaseUser.user_metadata?.full_name ||
+            supabaseUser.user_metadata?.name ||
+            null,
+          avatarUrl: supabaseUser.user_metadata?.avatar_url || null,
+        });
+      }
+
+      // Attach user to request
+      request.user = user;
+
+      return true;
+    } catch (error) {
+      throw new UnauthorizedException('Token validation failed');
+    }
+  }
+}