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TCA-354 2nd flavor of learn URL for FCC external link -> dev #49

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Merged
merged 1 commit into from
Aug 25, 2022
Merged

TCA-354 2nd flavor of learn URL for FCC external link -> dev #49

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28 changes: 23 additions & 5 deletions client/src/components/layouts/tc-integration.tsx
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Original file line number Diff line number Diff line change
Expand Up @@ -118,12 +118,13 @@ class TcIntegrationLayout extends Component<TcIntegrationLayoutProps> {

// if we're not clicking an anchor tag, there's nothing to do
const eventTarget = event.target as HTMLElement;
if (eventTarget?.localName !== 'a') {
const anchorTag = eventTarget.closest('a');
if (!anchorTag) {
return;
}

// if the target of the click isn't external, there's nothing to do
const target = eventTarget as HTMLAnchorElement;
const target = anchorTag;
const url = new URL(target.href);
if (url.host === window.location.host) {
return;
Expand All @@ -134,14 +135,31 @@ class TcIntegrationLayout extends Component<TcIntegrationLayoutProps> {
event.preventDefault();

// if this is a freecodecamp lesson, change its domain and path
if (url.host === 'learn.freecodecamp.org') {
url.host = new URL(document.referrer).host;
const fccHost = 'freecodecamp.org';
if (url.host.endsWith(fccHost)) {
// TODO: it would be nice to not require that the FCC
// app knows about the paths in the platform UI, but
// creating a way to share this info would be complex and
// time consuming, so we can handle it when we get another
// provider.
url.pathname = `learn/freecodecamp${url.pathname}`;

// set the pathname for the 2 flavors of lesson URL
const platformPathPrefix = 'learn/freecodecamp';
const learnPrefix = '/learn/';
if (url.host === `learn.${fccHost}`) {
url.pathname = `${platformPathPrefix}${url.pathname}`;
} else if (
url.host === `www.${fccHost}` &&
url.pathname.startsWith(learnPrefix)
) {
url.pathname = url.pathname.replace(
learnPrefix,
`/${platformPathPrefix}/`
);
}

// set the host to the iframe's parent domain
url.host = new URL(document.referrer).host;
}

// now open the url in a new tab
Expand Down