Created
August 28, 2019 07:43
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access.guard.ts
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import { ExecutionContext, Injectable, Logger } from '@nestjs/common'; | |
import { Reflector } from '@nestjs/core'; | |
import { AuthGuard } from '@nestjs/passport'; | |
import { User } from '../entities/user.entity'; | |
import { GqlExecutionContext } from '@nestjs/graphql'; | |
import { ExecutionContextHost } from '@nestjs/core/helpers/execution-context.host'; | |
@Injectable() | |
export class AccessGuard extends AuthGuard('jwt') { | |
constructor(private readonly reflector: Reflector) { | |
super(); | |
} | |
getRequest(context: ExecutionContext) { | |
const ctx = GqlExecutionContext.create(context); | |
return ctx.getContext().req; | |
} | |
async canActivate(context: ExecutionContext) { | |
try { | |
await super.canActivate(context); | |
} catch (error) {} | |
const roles = this.reflector.get<string[]>('roles', context.getHandler()); | |
const permissions = this.reflector.get<string[]>( | |
'permissions', | |
context.getHandler() | |
); | |
const request = | |
context.switchToHttp().getRequest() || this.getRequest(context); | |
const user: User = request.user; | |
Logger.log(JSON.stringify(user), AccessGuard.name); | |
const hasRole = roles | |
? roles.filter(roleName => user && user instanceof User && user[roleName]) | |
.length > 0 | |
: null; | |
const hasPermission = permissions | |
? user && user instanceof User && user.checkPermissions(permissions) | |
: null; | |
return ( | |
hasRole === true || | |
hasPermission === true || | |
(hasRole === null && hasPermission === null) | |
); | |
} | |
} |
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