mirror of
https://github.com/protomaps/PMTiles.git
synced 2026-02-04 02:41:09 +00:00
refactor: early return (#389)
* refactor: early return Undents all the code below it 1 level. Readability win. --------- Co-authored-by: Brandon Liu <bdon@bdon.org>
This commit is contained in:
Niels Bom
@@ -101,124 +101,124 @@ export default {
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const cache = caches.default;
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if (ok) {
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let allowedOrigin = "";
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if (typeof env.ALLOWED_ORIGINS !== "undefined") {
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for (const o of env.ALLOWED_ORIGINS.split(",")) {
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if (o === request.headers.get("Origin") || o === "*") {
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allowedOrigin = o;
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}
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if (!ok) {
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return new Response("Invalid URL", { status: 404 });
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}
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let allowedOrigin = "";
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if (typeof env.ALLOWED_ORIGINS !== "undefined") {
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for (const o of env.ALLOWED_ORIGINS.split(",")) {
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if (o === request.headers.get("Origin") || o === "*") {
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allowedOrigin = o;
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}
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}
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const cached = await cache.match(request.url);
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if (cached) {
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const respHeaders = new Headers(cached.headers);
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if (allowedOrigin)
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respHeaders.set("Access-Control-Allow-Origin", allowedOrigin);
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respHeaders.set("Vary", "Origin");
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return new Response(cached.body, {
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headers: respHeaders,
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status: cached.status,
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});
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}
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const cacheableResponse = (
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body: ArrayBuffer | string | undefined,
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cacheableHeaders: Headers,
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status: number
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) => {
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cacheableHeaders.set(
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"Cache-Control",
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`max-age=${env.CACHE_MAX_AGE || 86400}`
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);
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const cacheable = new Response(body, {
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headers: cacheableHeaders,
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status: status,
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});
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ctx.waitUntil(cache.put(request.url, cacheable));
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const respHeaders = new Headers(cacheableHeaders);
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if (allowedOrigin)
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respHeaders.set("Access-Control-Allow-Origin", allowedOrigin);
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respHeaders.set("Vary", "Origin");
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return new Response(body, { headers: respHeaders, status: status });
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};
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const cacheableHeaders = new Headers();
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const source = new R2Source(env, name);
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const p = new PMTiles(source, CACHE, nativeDecompress);
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try {
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const pHeader = await p.getHeader();
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if (!tile) {
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cacheableHeaders.set("Content-Type", "application/json");
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const t = tileJSON(
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pHeader,
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await p.getMetadata(),
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env.PUBLIC_HOSTNAME || url.hostname,
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name
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);
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return cacheableResponse(JSON.stringify(t), cacheableHeaders, 200);
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}
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if (tile[0] < pHeader.minZoom || tile[0] > pHeader.maxZoom) {
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return cacheableResponse(undefined, cacheableHeaders, 404);
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}
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for (const pair of [
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[TileType.Mvt, "mvt"],
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[TileType.Png, "png"],
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[TileType.Jpeg, "jpg"],
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[TileType.Webp, "webp"],
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[TileType.Avif, "avif"],
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]) {
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if (pHeader.tileType === pair[0] && ext !== pair[1]) {
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if (pHeader.tileType === TileType.Mvt && ext === "pbf") {
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// allow this for now. Eventually we will delete this in favor of .mvt
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continue;
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}
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return cacheableResponse(
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`Bad request: requested .${ext} but archive has type .${pair[1]}`,
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cacheableHeaders,
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400
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);
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}
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}
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const tiledata = await p.getZxy(tile[0], tile[1], tile[2]);
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switch (pHeader.tileType) {
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case TileType.Mvt:
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cacheableHeaders.set("Content-Type", "application/x-protobuf");
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break;
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case TileType.Png:
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cacheableHeaders.set("Content-Type", "image/png");
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break;
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case TileType.Jpeg:
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cacheableHeaders.set("Content-Type", "image/jpeg");
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break;
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case TileType.Webp:
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cacheableHeaders.set("Content-Type", "image/webp");
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break;
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}
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if (tiledata) {
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return cacheableResponse(tiledata.data, cacheableHeaders, 200);
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}
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return cacheableResponse(undefined, cacheableHeaders, 204);
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} catch (e) {
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if (e instanceof KeyNotFoundError) {
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return cacheableResponse("Archive not found", cacheableHeaders, 404);
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}
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throw e;
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}
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}
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return new Response("Invalid URL", { status: 404 });
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const cached = await cache.match(request.url);
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if (cached) {
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const respHeaders = new Headers(cached.headers);
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if (allowedOrigin)
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respHeaders.set("Access-Control-Allow-Origin", allowedOrigin);
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respHeaders.set("Vary", "Origin");
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return new Response(cached.body, {
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headers: respHeaders,
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status: cached.status,
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});
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}
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const cacheableResponse = (
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body: ArrayBuffer | string | undefined,
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cacheableHeaders: Headers,
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status: number
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) => {
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cacheableHeaders.set(
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"Cache-Control",
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`max-age=${env.CACHE_MAX_AGE || 86400}`
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);
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const cacheable = new Response(body, {
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headers: cacheableHeaders,
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status: status,
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});
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ctx.waitUntil(cache.put(request.url, cacheable));
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const respHeaders = new Headers(cacheableHeaders);
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if (allowedOrigin)
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respHeaders.set("Access-Control-Allow-Origin", allowedOrigin);
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respHeaders.set("Vary", "Origin");
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return new Response(body, { headers: respHeaders, status: status });
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};
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const cacheableHeaders = new Headers();
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const source = new R2Source(env, name);
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const p = new PMTiles(source, CACHE, nativeDecompress);
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try {
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const pHeader = await p.getHeader();
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if (!tile) {
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cacheableHeaders.set("Content-Type", "application/json");
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const t = tileJSON(
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pHeader,
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await p.getMetadata(),
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env.PUBLIC_HOSTNAME || url.hostname,
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name
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);
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return cacheableResponse(JSON.stringify(t), cacheableHeaders, 200);
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}
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if (tile[0] < pHeader.minZoom || tile[0] > pHeader.maxZoom) {
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return cacheableResponse(undefined, cacheableHeaders, 404);
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}
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for (const pair of [
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[TileType.Mvt, "mvt"],
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[TileType.Png, "png"],
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[TileType.Jpeg, "jpg"],
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[TileType.Webp, "webp"],
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[TileType.Avif, "avif"],
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]) {
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if (pHeader.tileType === pair[0] && ext !== pair[1]) {
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if (pHeader.tileType === TileType.Mvt && ext === "pbf") {
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// allow this for now. Eventually we will delete this in favor of .mvt
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continue;
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}
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return cacheableResponse(
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`Bad request: requested .${ext} but archive has type .${pair[1]}`,
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cacheableHeaders,
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400
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);
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}
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}
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const tiledata = await p.getZxy(tile[0], tile[1], tile[2]);
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switch (pHeader.tileType) {
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case TileType.Mvt:
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cacheableHeaders.set("Content-Type", "application/x-protobuf");
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break;
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case TileType.Png:
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cacheableHeaders.set("Content-Type", "image/png");
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break;
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case TileType.Jpeg:
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cacheableHeaders.set("Content-Type", "image/jpeg");
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break;
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case TileType.Webp:
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cacheableHeaders.set("Content-Type", "image/webp");
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break;
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}
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if (tiledata) {
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return cacheableResponse(tiledata.data, cacheableHeaders, 200);
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}
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return cacheableResponse(undefined, cacheableHeaders, 204);
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} catch (e) {
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if (e instanceof KeyNotFoundError) {
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return cacheableResponse("Archive not found", cacheableHeaders, 404);
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}
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throw e;
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}
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},
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};
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