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oso-instance.ts
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oso-instance.ts
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import { CanActivate, ExecutionContext, Injectable, UnauthorizedException } from '@nestjs/common';
import { getLogger } from 'log4js';
import { Oso } from 'oso';
import { Document } from '../document/entity/document';
import { Project, ProjectService } from '../project/project.service';
import { Guest } from '../users/entity/guest';
import { User } from '../users/entity/user';
@Injectable()
export class OsoInstance extends Oso implements CanActivate {
private readonly logger = getLogger(OsoInstance.name);
private readonly init: Promise<void[]>;
constructor() {
super();
this.logger.info('Creating new OsoInstance...');
this.logger.info('registering User...');
this.registerClass(User);
this.logger.info('registering Guest...');
this.registerClass(Guest);
this.logger.info('registering Document...');
this.registerClass(Document);
this.logger.info('registering Project...');
// TODO: Handle promises
this.registerClass(Project);
this.registerClass(ProjectService);
this.registerConstant('console', console);
const files = ["roles", "permissions"];
this.init = Promise.all(files.map(file => this.loadFile(`${__dirname}/${file}.polar`)));
}
async initialized() {
await this.init;
}
isAllowed(actor: unknown, action: unknown, resource: unknown): Promise<boolean> {
const isAllowed = super.isAllowed(actor, action, resource);
isAllowed.then(
(answer) => this.logger.info('isAllowed(): actor: ', actor, '; action: ', action, '; resource: ', resource, '; isAllowed: ', answer)
);
return isAllowed;
}
canActivate(context: ExecutionContext): boolean {
context.switchToHttp().getRequest().oso = this;
return true;
}
unauthorized() {
throw new UnauthorizedException();
}
}