Files
hoppscotch/packages/hoppscotch-backend/src/team-invitation/team-invite-viewer.guard.ts
2023-02-08 20:21:51 +06:00

73 lines
2.2 KiB
TypeScript

import { CanActivate, ExecutionContext, Injectable } from '@nestjs/common';
import { TeamInvitationService } from './team-invitation.service';
import { pipe, flow } from 'fp-ts/function';
import * as TE from 'fp-ts/TaskEither';
import * as T from 'fp-ts/Task';
import * as O from 'fp-ts/Option';
import { GqlExecutionContext } from '@nestjs/graphql';
import {
BUG_AUTH_NO_USER_CTX,
BUG_TEAM_INVITE_NO_INVITE_ID,
TEAM_INVITE_NOT_VALID_VIEWER,
TEAM_INVITE_NO_INVITE_FOUND,
} from 'src/errors';
import { User } from 'src/user/user.model';
import { throwErr } from 'src/utils';
import { TeamService } from 'src/team/team.service';
@Injectable()
export class TeamInviteViewerGuard implements CanActivate {
constructor(
private readonly teamInviteService: TeamInvitationService,
private readonly teamService: TeamService,
) {}
async canActivate(context: ExecutionContext): Promise<boolean> {
return pipe(
TE.Do,
// Get GQL Context
TE.bindW('gqlCtx', () => TE.of(GqlExecutionContext.create(context))),
// Get user
TE.bindW('user', ({ gqlCtx }) =>
pipe(
O.fromNullable(gqlCtx.getContext<{ user?: User }>().user),
TE.fromOption(() => BUG_AUTH_NO_USER_CTX),
),
),
// Get the invite
TE.bindW('invite', ({ gqlCtx }) =>
pipe(
O.fromNullable(gqlCtx.getArgs<{ inviteID?: string }>().inviteID),
TE.fromOption(() => BUG_TEAM_INVITE_NO_INVITE_ID),
TE.chainW(
flow(
this.teamInviteService.getInvitation,
TE.fromTaskOption(() => TEAM_INVITE_NO_INVITE_FOUND),
),
),
),
),
// Check if the user and the invite email match, else if we can resolver the user as a team member
// any better solution ?
TE.chainW(({ user, invite }) =>
user.email?.toLowerCase() === invite.inviteeEmail.toLowerCase()
? TE.of(true)
: pipe(
this.teamService.getTeamMemberTE(invite.teamID, user.uid),
TE.map(() => true),
),
),
TE.mapLeft((e) =>
e === 'team/member_not_found' ? TEAM_INVITE_NOT_VALID_VIEWER : e,
),
TE.fold(throwErr, () => T.of(true)),
)();
}
}