From ab1f8437ea9391f792e9b90f3190acc51538df4a Mon Sep 17 00:00:00 2001
From: ankitsridhar16 <ankit.sridhar16@gmail.com>
Date: Wed, 7 Dec 2022 20:30:02 +0530
Subject: [PATCH] chore: added existing auth guard and user model

---
 .../src/guards/gql-auth.guard.ts              | 42 +++++++++++++++++++
 .../hoppscotch-backend/src/user/user.model.ts | 27 ++++++++++++
 2 files changed, 69 insertions(+)
 create mode 100644 packages/hoppscotch-backend/src/guards/gql-auth.guard.ts
 create mode 100644 packages/hoppscotch-backend/src/user/user.model.ts

diff --git a/packages/hoppscotch-backend/src/guards/gql-auth.guard.ts b/packages/hoppscotch-backend/src/guards/gql-auth.guard.ts
new file mode 100644
index 000000000..aabc77b10
--- /dev/null
+++ b/packages/hoppscotch-backend/src/guards/gql-auth.guard.ts
@@ -0,0 +1,42 @@
+import { CanActivate, Injectable, ExecutionContext } from '@nestjs/common';
+import { GqlExecutionContext } from '@nestjs/graphql';
+import { User } from '../user/user.model';
+import { IncomingHttpHeaders } from 'http2';
+import { AUTH_FAIL } from 'src/errors';
+
+@Injectable()
+export class GqlAuthGuard implements CanActivate {
+  // eslint-disable-next-line @typescript-eslint/no-empty-function
+  constructor() {}
+
+  async canActivate(context: ExecutionContext): Promise<boolean> {
+    try {
+      const ctx = GqlExecutionContext.create(context).getContext<{
+        reqHeaders: IncomingHttpHeaders;
+        user: User | null;
+      }>();
+
+      if (
+        ctx.reqHeaders.authorization &&
+        ctx.reqHeaders.authorization.startsWith('Bearer ')
+      ) {
+        const idToken = ctx.reqHeaders.authorization.split(' ')[1];
+
+        const authUser: User = {
+          uid: 'aabb22ccdd',
+          displayName: 'exampleUser',
+          photoURL: 'http://example.com/avatar',
+          email: 'me@example.com',
+        };
+
+        ctx.user = authUser;
+
+        return true;
+      } else {
+        return false;
+      }
+    } catch (e) {
+      throw new Error(AUTH_FAIL);
+    }
+  }
+}
diff --git a/packages/hoppscotch-backend/src/user/user.model.ts b/packages/hoppscotch-backend/src/user/user.model.ts
new file mode 100644
index 000000000..779dbc4db
--- /dev/null
+++ b/packages/hoppscotch-backend/src/user/user.model.ts
@@ -0,0 +1,27 @@
+import { ObjectType, ID, Field } from '@nestjs/graphql';
+
+@ObjectType()
+export class User {
+  @Field(() => ID, {
+    description: 'Firebase UID of the user',
+  })
+  uid: string;
+
+  @Field({
+    nullable: true,
+    description: 'Displayed name of the user (if given)',
+  })
+  displayName?: string;
+
+  @Field({
+    nullable: true,
+    description: 'Email of the user (if given)',
+  })
+  email?: string;
+
+  @Field({
+    nullable: true,
+    description: 'URL to the profile photo of the user (if given)',
+  })
+  photoURL?: string;
+}