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Support OAuth "state" param

This commit is contained in:
Alex Gleason 2024-06-12 18:04:04 -05:00
parent 7dbd40a88b
commit edddc5384c
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GPG Key ID: 7211D1F99744FBB7
1 changed files with 11 additions and 3 deletions
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14
src/controllers/api/oauth.ts
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@ -122,6 +122,7 @@ const oauthController: AppController = (c) => {
return c.text('Missing `redirect_uri` query param.', 422);
}
const state = c.req.query('state');
const redirectUri = maybeDecodeUri(encodedUri);
return c.html(`<!DOCTYPE html>
@ -162,6 +163,7 @@ const oauthController: AppController = (c) => {
<form id="oauth_form" action="/oauth/authorize" method="post">
<input type="text" placeholder="bunker://..." name="bunker_uri" autocomplete="off" required>
<input type="hidden" name="redirect_uri" id="redirect_uri" value="${escape(redirectUri)}">
<input type="hidden" name="state" value="${escape(state ?? '')}">
<button type="submit">Authorize</button>
</form>
<p>Sign in with a Nostr bunker app. Please configure the app to use this relay: ${Conf.relay}</p>
@ -187,6 +189,7 @@ function maybeDecodeUri(uri: string): string {
const oauthAuthorizeSchema = z.object({
bunker_uri: z.string().url().refine((v) => v.startsWith('bunker://')),
redirect_uri: z.string().url(),
state: z.string().optional(),
});
/** Controller the OAuth form is POSTed to. */
@ -199,7 +202,7 @@ const oauthAuthorizeController: AppController = async (c) => {
}
// Parsed FormData values.
const { bunker_uri, redirect_uri: redirectUri } = result.data;
const { bunker_uri, redirect_uri: redirectUri, state } = result.data;
const bunker = new URL(bunker_uri);
@ -213,17 +216,22 @@ const oauthAuthorizeController: AppController = async (c) => {
return c.text(token);
}
const url = addCodeToRedirectUri(redirectUri, token);
const url = addCodeToRedirectUri(redirectUri, token, state);
return c.redirect(url);
};
/** Append the given `code` as a query param to the `redirect_uri`. */
function addCodeToRedirectUri(redirectUri: string, code: string): string {
function addCodeToRedirectUri(redirectUri: string, code: string, state?: string): string {
const url = new URL(redirectUri);
const q = new URLSearchParams();
q.set('code', code);
if (state) {
q.set('state', state);
}
url.search = q.toString();
return url.toString();