51 lines
1.2 KiB
JavaScript
51 lines
1.2 KiB
JavaScript
// @flow
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import addMinutes from "date-fns/add_minutes";
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import subMinutes from "date-fns/sub_minutes";
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import { type Request } from "koa";
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import { OAuthStateMismatchError } from "../errors";
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import { getCookieDomain } from "./domains";
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export class StateStore {
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key: string = "state";
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store = (req: Request, callback: (err: ?Error, state?: string) => void) => {
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const state = Math.random().toString(36).substring(7);
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// $FlowFixMe
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req.cookies.set(this.key, state, {
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httpOnly: false,
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expires: addMinutes(new Date(), 10),
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domain: getCookieDomain(req.hostname),
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});
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callback(null, state);
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};
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verify = (
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req: Request,
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providedState: string,
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callback: (err: ?Error, ?boolean) => void
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) => {
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// $FlowFixMe
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const state = req.cookies.get(this.key);
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if (!state) {
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return callback(
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new OAuthStateMismatchError("State not return in OAuth flow")
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);
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}
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// $FlowFixMe
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req.cookies.set(this.key, "", {
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httpOnly: false,
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expires: subMinutes(new Date(), 1),
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domain: getCookieDomain(req.hostname),
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});
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if (state !== providedState) {
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return callback(new OAuthStateMismatchError());
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}
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callback(null, true);
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};
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}
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