Add support chat (#1066)

* Add support chat

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

* Refactor the chat logic

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

* Add HMAC signing

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

* Update the button styles

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

* Update the button styles

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

* Refactor the chat logic

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

* Fix the chat not loading

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

* Fix the chat not loading

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

* Add requested changes

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

* Add requested changes

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

* Add requested changes

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

* Add requested changes

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

* Add requested changes

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

---------

Co-authored-by: v1b3m <vibenjamin6@gmail.com>

server/.env.example

@@ -17,4 +17,7 @@ SIGN_IN_PREFILLED=true
 # FRONT_AUTH_CALLBACK_URL=http://localhost:3001/verify 
 # AUTH_GOOGLE_ENABLED=false
 # STORAGE_TYPE=local
-# STORAGE_LOCAL_PATH=.local-storage 
+# STORAGE_LOCAL_PATH=.local-storage
+# SUPPORT_DRIVER=front
+# SUPPORT_HMAC_KEY=replace_me_with_a_random_string
+# SUPPORT_FRONTEND_KEY=replace_me_with_a_random_string

server/src/core/client-config/client-config.entity.ts

@@ -21,6 +21,15 @@ class Telemetry {
   anonymizationEnabled: boolean;
 }
 
+@ObjectType()
+class SupportChat {
+  @Field(() => String)
+  supportDriver: string;
+
+  @Field(() => String, { nullable: true })
+  supportFrontendKey: string | null;
+}
+
 @ObjectType()
 export class ClientConfig {
   @Field(() => AuthProviders, { nullable: false })
@@ -34,4 +43,7 @@ export class ClientConfig {
 
   @Field(() => Boolean)
   debugMode: boolean;
+
+  @Field(() => SupportChat)
+  supportChat: SupportChat;
 }

server/src/core/client-config/client-config.resolver.ts

@@ -23,6 +23,10 @@ export class ClientConfigResolver {
       },
       signInPrefilled: this.environmentService.isSignInPrefilled(),
       debugMode: this.environmentService.isDebugMode(),
+      supportChat: {
+        supportDriver: this.environmentService.getSupportDriver(),
+        supportFrontendKey: this.environmentService.getSupportFrontendKey(),
+      },
     };
 
     return Promise.resolve(clientConfig);

server/src/core/user/dto/user-with-HMAC.ts

@@ -0,0 +1,9 @@
+import { Field, ObjectType } from '@nestjs/graphql';
+
+import { User } from 'src/core/@generated/user/user.model';
+
+@ObjectType()
+export class UserWithHMACKey extends User {
+  @Field(() => String, { nullable: true })
+  supportHMACKey: string | null;
+}

server/src/core/user/user.module.ts

@@ -2,12 +2,13 @@ import { Module } from '@nestjs/common';
 
 import { FileModule } from 'src/core/file/file.module';
 import { WorkspaceModule } from 'src/core/workspace/workspace.module';
+import { EnvironmentModule } from 'src/integrations/environment/environment.module';
 
 import { UserService } from './user.service';
 import { UserResolver } from './user.resolver';
 
 @Module({
-  imports: [FileModule, WorkspaceModule],
+  imports: [FileModule, WorkspaceModule, EnvironmentModule],
   providers: [UserService, UserResolver],
   exports: [UserService],
 })

server/src/core/user/user.resolver.spec.ts

@@ -2,6 +2,7 @@ import { Test, TestingModule } from '@nestjs/testing';
 
 import { AbilityFactory } from 'src/ability/ability.factory';
 import { FileUploadService } from 'src/core/file/services/file-upload.service';
+import { EnvironmentService } from 'src/integrations/environment/environment.service';
 
 import { UserResolver } from './user.resolver';
 import { UserService } from './user.service';
@@ -25,6 +26,10 @@ describe('UserResolver', () => {
           provide: FileUploadService,
           useValue: {},
         },
+        {
+          provide: EnvironmentService,
+          useValue: {},
+        },
       ],
     }).compile();
 

server/src/core/user/user.resolver.ts

@@ -8,6 +8,8 @@ import {
 } from '@nestjs/graphql';
 import { UseFilters, UseGuards } from '@nestjs/common';
 
+import crypto from 'crypto';
+
 import { accessibleBy } from '@casl/prisma';
 import { Prisma, Workspace } from '@prisma/client';
 import { FileUpload, GraphQLUpload } from 'graphql-upload';
@@ -37,32 +39,48 @@ import { UpdateOneUserArgs } from 'src/core/@generated/user/update-one-user.args
 import { streamToBuffer } from 'src/utils/stream-to-buffer';
 import { FileUploadService } from 'src/core/file/services/file-upload.service';
 import { AuthWorkspace } from 'src/decorators/auth-workspace.decorator';
+import { EnvironmentService } from 'src/integrations/environment/environment.service';
 
 import { UserService } from './user.service';
 
+import { UserWithHMACKey } from './dto/user-with-HMAC';
+
+function getHMACKey(email?: string, key?: string | null) {
+  if (!email || !key) return null;
+
+  const hmac = crypto.createHmac('sha256', key);
+  return hmac.update(email).digest('hex');
+}
+
 @UseGuards(JwtAuthGuard)
 @Resolver(() => User)
 export class UserResolver {
   constructor(
     private readonly userService: UserService,
     private readonly fileUploadService: FileUploadService,
+    private environmentService: EnvironmentService,
   ) {}
 
-  @Query(() => User)
+  @Query(() => UserWithHMACKey)
   async currentUser(
-    @AuthUser() { id }: User,
+    @AuthUser() { id, email }: User,
     @PrismaSelector({ modelName: 'User' })
     prismaSelect: PrismaSelect<'User'>,
   ) {
+    const key = this.environmentService.getSupportHMACKey();
+
+    const select = prismaSelect.value;
+    delete select['supportHMACKey'];
+
     const user = await this.userService.findUnique({
       where: {
         id,
       },
-      select: prismaSelect.value,
+      select,
     });
     assert(user, 'User not found');
 
-    return user;
+    return { ...user, supportHMACKey: getHMACKey(email, key) };
   }
 
   @UseFilters(ExceptionFilter)

server/src/integrations/environment/environment.service.ts

@@ -101,4 +101,16 @@ export class EnvironmentService {
       this.configService.get<string>('STORAGE_LOCAL_PATH') ?? '.local-storage'
     );
   }
+
+  getSupportDriver(): string {
+    return this.configService.get<string>('SUPPORT_DRIVER') ?? 'front';
+  }
+
+  getSupportFrontendKey(): string | null {
+    return this.configService.get<string>('SUPPORT_FRONTEND_KEY') ?? null;
+  }
+
+  getSupportHMACKey(): string | null {
+    return this.configService.get<string>('SUPPORT_HMAC_KEY') ?? null;
+  }
 }