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Prevent double uri decoding #9532

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Dec 27, 2023
Merged

Prevent double uri decoding #9532

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5 changes: 5 additions & 0 deletions .changeset/old-goats-occur.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
'astro': patch
---

Prevents unnecessary URI decoding when rendering a route
4 changes: 2 additions & 2 deletions packages/astro/src/core/routing/params.ts
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Expand Up @@ -12,9 +12,9 @@ export function getParams(array: string[]) {
const params: Params = {};
array.forEach((key, i) => {
if (key.startsWith('...')) {
params[key.slice(3)] = match[i + 1] ? decodeURIComponent(match[i + 1]) : undefined;
params[key.slice(3)] = match[i + 1] ? match[i + 1] : undefined;
} else {
params[key] = decodeURIComponent(match[i + 1]);
params[key] = match[i + 1];
Comment on lines -15 to +17
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This getParams function is being called at

astro/packages/astro/src/core/render/params-and-props.ts

Lines 63 to 72 in cf993bc

function getRouteParams(route: RouteData, pathname: string): Params | undefined {
if (route.params.length) {
// The RegExp pattern expects a decoded string, but the pathname is encoded
// when the URL contains non-English characters.
const paramsMatch = route.pattern.exec(decodeURIComponent(pathname));
if (paramsMatch) {
return getParams(route.params)(paramsMatch);
}
}
}

As shown, it already calls decodeURIComponent, so we don't have to call decodeURIComponent here too.

}
});
return params;
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2 changes: 1 addition & 1 deletion packages/astro/src/vite-plugin-astro-server/request.ts
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Expand Up @@ -37,7 +37,7 @@ export async function handleRequest({
if (config.trailingSlash === 'never' && !incomingRequest.url) {
pathname = '';
} else {
pathname = decodeURI(url.pathname);
pathname = url.pathname;
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It doesn't look like we need to decode it here. It also doesn't work well with the line below:

astro/packages/astro/src/vite-plugin-astro-server/request.ts

Lines 43 to 44 in cf993bc

// Add config.base back to url before passing it to SSR
url.pathname = removeTrailingForwardSlash(config.base) + url.pathname;

(URLs are always encoded)

Removing this decodeURI seems to not break things. It affects dev only. The prod SSR "app" also doesn't decode the url, so I think this makes it more consistent.

}

// Add config.base back to url before passing it to SSR
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10 changes: 10 additions & 0 deletions packages/astro/test/ssr-params.test.js
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Expand Up @@ -38,4 +38,14 @@ describe('Astro.params in SSR', () => {
expect($('.category').text()).to.equal('food');
});
});

it('No double URL decoding', async () => {
const app = await fixture.loadTestAdapterApp();
const request = new Request('http://example.com/users/houston/%25');
const response = await app.render(request);
expect(response.status).to.equal(200);
const html = await response.text();
const $ = cheerio.load(html);
expect($('.category').text()).to.equal('%');
});
});
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