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support HEAD and add content-length #326

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merged 2 commits into from
Nov 6, 2023
Merged

support HEAD and add content-length #326

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eed6d64
support HEAD and add content-length
LesnyRumcajs Oct 31, 2023
72fb38d
Merge branch 'main' into support-head
LesnyRumcajs Nov 6, 2023
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24 changes: 15 additions & 9 deletions cf/latest-snapshot/src/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -46,7 +46,10 @@ async function get_latest(req_headers: Headers, env: Env, chain: string): Promis

const r = range[0];
headers.set('Content-Range', `${r.type} ${r.start}-${r.end}/${object.size}`);
headers.set('Content-Length', `${r.end - r.start + 1}`);
status = 206; // Partial Content
} else {
headers.set('Content-Length', object.size.toString());
}

object.writeHttpMetadata(headers);
Expand Down Expand Up @@ -78,16 +81,19 @@ export default {
const url = new URL(request.url);
const chain = (url.pathname.match(/\/latest\/(\w*)/) || ['undefined'])[1];

// Disallow any other request method except GET, they are not sensible in the context
// Disallow any other request method except HEAD and GET, they are not sensible in the context
// of fetching a snapshot.
if (request.method !== 'GET') {
return new Response('Method not allowed', {
status: 405,
headers: {
Allow: 'GET',
},
});
switch (request.method) {
case 'HEAD':
case 'GET':
return await get_latest(request.headers, env, chain);
default:
return new Response('Method not allowed', {
status: 405,
headers: {
Allow: 'GET, HEAD',
},
});
}
return await get_latest(request.headers, env, chain);
},
};