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fix: fix cookie parsing to allow invalid uri encoding #4915

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merged 2 commits into from
Aug 21, 2023
Merged

fix: fix cookie parsing to allow invalid uri encoding #4915

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d7307f4
fix: fix cookie parsing to allow invalid uri encoding
jessezhang91 Aug 8, 2023
2578d22
fixup! fix: fix cookie parsing to allow invalid uri encoding
mhevery Aug 21, 2023
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12 changes: 10 additions & 2 deletions packages/qwik-city/middleware/request-handler/cookie.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -52,15 +52,23 @@ const createSetCookieValue = (cookieName: string, cookieValue: string, options:
return c.join('; ');
};

function tryDecodeUriComponent(str: string) {
try {
return decodeURIComponent(str);
} catch {
return str;
}
}

const parseCookieString = (cookieString: string | undefined | null) => {
const cookie: Record<string, string> = {};
if (typeof cookieString === 'string' && cookieString !== '') {
const cookieSegments = cookieString.split(';');
for (const cookieSegment of cookieSegments) {
const separatorIndex = cookieSegment.indexOf('=');
if (separatorIndex !== -1) {
cookie[decodeURIComponent(cookieSegment.slice(0, separatorIndex).trim())] =
decodeURIComponent(cookieSegment.slice(separatorIndex + 1).trim());
cookie[tryDecodeUriComponent(cookieSegment.slice(0, separatorIndex).trim())] =
tryDecodeUriComponent(cookieSegment.slice(separatorIndex + 1).trim());
}
}
}
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4 changes: 3 additions & 1 deletion packages/qwik-city/middleware/request-handler/cookie.unit.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@ test('parses cookie', () => {
a: 'hello=world',
b: '25',
c: '{"hello": "world"}',
d: '%badencoding',
};
const cookieString = Object.entries(cookieValues)
.reduce((prev: string[], [key, value]) => {
Expand All @@ -28,10 +29,11 @@ test('parses cookie', () => {
Object.entries(cookieValues).forEach(([key, value]) => {
equal(cookie.get(key)?.value, value);
});
equal(Object.keys(cookie.getAll()).length, 3);
equal(Object.keys(cookie.getAll()).length, 4);
equal(cookie.getAll().a.value, 'hello=world');
equal(cookie.getAll().b.number(), 25);
equal(cookie.getAll().c.json(), { hello: 'world' });
equal(cookie.getAll().d.value, '%badencoding');
});

test('creates correct headers', () => {
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