YARA-986

src/super-admin/guards/super-admin.guard.ts

@@ -0,0 +1,49 @@
+import {
+  CanActivate,
+  ExecutionContext,
+  Injectable,
+  UnauthorizedException,
+} from "@nestjs/common";
+import { JwtService } from "@nestjs/jwt";
+import { Request } from "express";
+import { RoleEnum } from "src/Types&Enums/role.enum";
+
+/**
+ * Verifies a Bearer JWT and restricts access to `super_admin` role only.
+ * Use this guard on all endpoints that should be reachable only by the
+ * super-admin panel.
+ */
+@Injectable()
+export class SuperAdminGuard implements CanActivate {
+  constructor(private readonly jwtService: JwtService) {}
+
+  async canActivate(context: ExecutionContext): Promise<boolean> {
+    const request = context.switchToHttp().getRequest<Request>();
+    const token = this.extractTokenFromHeader(request);
+    if (!token) {
+      throw new UnauthorizedException("Token not found");
+    }
+
+    let payload: any;
+    try {
+      payload = await this.jwtService.verifyAsync(token, {
+        secret: `${process.env.JWT_SECRET}`,
+      });
+    } catch {
+      throw new UnauthorizedException("Invalid or expired token");
+    }
+
+    if (payload?.role !== RoleEnum.SUPER_ADMIN) {
+      throw new UnauthorizedException("Super-admin access required");
+    }
+
+    (request as any).user = payload;
+    (request as any).identity = payload;
+    return true;
+  }
+
+  private extractTokenFromHeader(request: Request): string | undefined {
+    const [type, token] = request.headers.authorization?.split(" ") ?? [];
+    return type === "Bearer" ? token : undefined;
+  }
+}