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import { mergeUrlParams, setUrlFragment } from '~/lib/utils/url_utility';
/**
* Ensure the given URL fragment is preserved by appending it to sign-in/sign-up form actions and
* OAuth/SAML login links.
*
* @param fragment {string} - url fragment to be preserved
*/
export default function preserveUrlFragment(fragment = '') {
if (fragment) {
const normalFragment = fragment.replace(/^#/, '');
// Append the fragment to all sign-in/sign-up form actions so it is preserved when the user is
// eventually redirected back to the originally requested URL.
const forms = document.querySelectorAll('#signin-container form');
Array.prototype.forEach.call(forms, form => {
const actionWithFragment = setUrlFragment(form.getAttribute('action'), `#${normalFragment}`);
form.setAttribute('action', actionWithFragment);
});
// Append a redirect_fragment query param to all oauth provider links. The redirect_fragment
// query param will be available in the omniauth callback upon successful authentication
const anchors = document.querySelectorAll('#signin-container a.oauth-login');
Array.prototype.forEach.call(anchors, anchor => {
const newHref = mergeUrlParams(
{ redirect_fragment: normalFragment },
anchor.getAttribute('href'),
);
anchor.setAttribute('href', newHref);
});
}
}
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