Initial boiler plate project

node_modules/next/dist/esm/server/lib/router-utils/proxy-request.js

@@ -0,0 +1,95 @@
+import url from "url";
+import { stringifyQuery } from "../../server-route-utils";
+export async function proxyRequest(req, res, parsedUrl, upgradeHead, reqBody, proxyTimeout) {
+    const { query } = parsedUrl;
+    delete parsedUrl.query;
+    parsedUrl.search = stringifyQuery(req, query);
+    const target = url.format(parsedUrl);
+    const HttpProxy = require("next/dist/compiled/http-proxy");
+    const proxy = new HttpProxy({
+        target,
+        changeOrigin: true,
+        ignorePath: true,
+        ws: true,
+        // we limit proxy requests to 30s by default, in development
+        // we don't time out WebSocket requests to allow proxying
+        proxyTimeout: proxyTimeout === null ? undefined : proxyTimeout || 30000,
+        headers: {
+            "x-forwarded-host": req.headers.host || ""
+        }
+    });
+    await new Promise((proxyResolve, proxyReject)=>{
+        let finished = false;
+        // http-proxy does not properly detect a client disconnect in newer
+        // versions of Node.js. This is caused because it only listens for the
+        // `aborted` event on the our request object, but it also fully reads
+        // and closes the request object. Node **will not** fire `aborted` when
+        // the request is already closed. Listening for `close` on our response
+        // object will detect the disconnect, and we can abort the proxy's
+        // connection.
+        proxy.on("proxyReq", (proxyReq)=>{
+            res.on("close", ()=>proxyReq.destroy());
+        });
+        proxy.on("proxyRes", (proxyRes)=>{
+            if (res.destroyed) {
+                proxyRes.destroy();
+            } else {
+                res.on("close", ()=>proxyRes.destroy());
+            }
+        });
+        proxy.on("proxyRes", (proxyRes, innerReq, innerRes)=>{
+            const cleanup = (err)=>{
+                // cleanup event listeners to allow clean garbage collection
+                proxyRes.removeListener("error", cleanup);
+                proxyRes.removeListener("close", cleanup);
+                innerRes.removeListener("error", cleanup);
+                innerRes.removeListener("close", cleanup);
+                // destroy all source streams to propagate the caught event backward
+                innerReq.destroy(err);
+                proxyRes.destroy(err);
+            };
+            proxyRes.once("error", cleanup);
+            proxyRes.once("close", cleanup);
+            innerRes.once("error", cleanup);
+            innerRes.once("close", cleanup);
+        });
+        proxy.on("error", (err)=>{
+            console.error(`Failed to proxy ${target}`, err);
+            if (!finished) {
+                finished = true;
+                proxyReject(err);
+                if (!res.destroyed) {
+                    res.statusCode = 500;
+                    res.end("Internal Server Error");
+                }
+            }
+        });
+        // if upgrade head is present treat as WebSocket request
+        if (upgradeHead) {
+            proxy.on("proxyReqWs", (proxyReq)=>{
+                proxyReq.on("close", ()=>{
+                    if (!finished) {
+                        finished = true;
+                        proxyResolve(true);
+                    }
+                });
+            });
+            proxy.ws(req, res, upgradeHead);
+            proxyResolve(true);
+        } else {
+            proxy.on("proxyReq", (proxyReq)=>{
+                proxyReq.on("close", ()=>{
+                    if (!finished) {
+                        finished = true;
+                        proxyResolve(true);
+                    }
+                });
+            });
+            proxy.web(req, res, {
+                buffer: reqBody
+            });
+        }
+    });
+}
+
+//# sourceMappingURL=proxy-request.js.map