104 lines
2.7 KiB
TypeScript
104 lines
2.7 KiB
TypeScript
import brotliPromise from "brotli-wasm"; // Import the default export
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import { simpleHash } from "utils/cache";
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import { g } from "utils/global";
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const brotli = await brotliPromise;
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const parseQueryParams = (ctx: any) => {
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const pageHref = ctx.req.url;
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const searchParams = new URLSearchParams(
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pageHref.substring(pageHref.indexOf("?"))
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);
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const result: any = {};
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searchParams.forEach((v, k) => {
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result[k] = v;
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});
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return result as any;
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};
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export const apiContext = (ctx: any) => {
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ctx.req.params = ctx.params;
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if (ctx.params["_0"]) {
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ctx.params["_"] = ctx.params["_0"];
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delete ctx.params["_0"];
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}
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ctx.req.query_parameters = parseQueryParams(ctx);
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return {
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req: ctx.req as Request & { params: any; query_parameters: any },
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res: {
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...ctx.res,
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send: (body, cache_accept?: string) => {
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ctx.res = createResponse(ctx.res, body, cache_accept);
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},
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sendStatus: (code: number) => {
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ctx.res._status = code;
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},
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setHeader: (key: string, value: string) => {
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ctx.res.headers.append(key, value);
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},
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} as Response & {
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send: (body?: string | object, cache_accept?: string) => void;
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setHeader: (key: string, value: string) => void;
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sendStatus: (code: number) => void;
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},
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};
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};
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(BigInt.prototype as any).toJSON = function (): string {
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return `BigInt::` + this.toString();
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};
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export const createResponse = (
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existingRes: any,
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body: any,
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cache_accept?: string
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) => {
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const status =
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typeof existingRes._status === "number" ? existingRes._status : undefined;
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let content: any = typeof body === "string" ? body : JSON.stringify(body);
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const headers = {} as Record<string, string>;
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if (cache_accept) {
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if (g.mode === "prod" && cache_accept.toLowerCase().includes("br")) {
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const content_hash = simpleHash(content);
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if (g.cache.br[content_hash]) {
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content = g.cache.br[content_hash];
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headers["content-encoding"] = "br";
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} else {
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if (!g.cache.br_timeout.has(content_hash)) {
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g.cache.br_timeout.add(content_hash);
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setTimeout(() => {
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g.cache.br[content_hash] = brotli.compress(Buffer.from(content));
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g.cache.br_timeout.delete(content_hash);
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});
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}
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}
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}
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}
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let res = new Response(
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content,
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status
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? {
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status,
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}
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: undefined
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);
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for (const [k, v] of Object.entries(headers)) {
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res.headers.append(k, v);
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}
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const cur = existingRes as Response;
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cur.headers.forEach((value, key) => {
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res.headers.append(key, value);
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});
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if (typeof body === "object" && !res.headers.has("content-type")) {
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res.headers.append("content-type", "application/json");
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}
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return res;
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};
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