mirror of https://github.com/186526/handlers.js
78 lines
2.0 KiB
TypeScript
78 lines
2.0 KiB
TypeScript
import { platformAdapater } from "./index";
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import { request, response } from "../interface/index";
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import { router } from "../router";
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import { headers } from "../interface/headers";
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import http from "http";
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import { methodENUM } from "src/interface/method";
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export class NodePlatformAdapter<T = any, K = any> implements platformAdapater {
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public router: router<T, K>;
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constructor(router: router<T, K>) {
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this.router = router;
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}
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async listen(port: number): Promise<void> {
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const server = http.createServer();
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server.on(
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"request",
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async (req: http.IncomingMessage, res: http.ServerResponse) => {
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const request = await this.handleRequest(req);
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const response = await this.router.respond(request);
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this.handleResponse(response, res);
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}
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);
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server.listen(port);
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return;
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}
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async handleRequest(
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nativeRequest: http.IncomingMessage
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): Promise<request<T>> {
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if (
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typeof nativeRequest.method != "string" ||
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typeof nativeRequest.url != "string" ||
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typeof nativeRequest.headers != "object"
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) {
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throw new Error("Invalid request");
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}
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let body: string = "";
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const ip: string = nativeRequest.socket.remoteAddress?.replace("::ffff:", "") ?? "0.0.0.0";
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const requestHeaders = new headers(<any>nativeRequest.headers);
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if (!["GET", "HEAD", "DELETE", "OPTIONS"].includes(nativeRequest.method)) {
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nativeRequest.on("data", (data: string) => {
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body += data;
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});
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await new Promise((resolve) =>
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nativeRequest.on("end", () => {
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resolve(true);
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})
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);
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}
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return new request<T>(
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<methodENUM>nativeRequest.method,
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new URL(
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nativeRequest.url,
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`http://${requestHeaders.get("host") ?? "localhost"}`
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),
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requestHeaders,
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body,
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{},
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ip
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);
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}
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handleResponse(response: response<K>, nativeResponse: http.ServerResponse) {
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nativeResponse.statusCode = response.status;
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response.headers.forEach((key, value) => {
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nativeResponse.setHeader(key, value);
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});
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nativeResponse.end(response.body);
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}
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}
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