Move providers from app to routes

src/node/routes/proxy.ts

@@ -0,0 +1,43 @@
+import * as http from "http"
+import { HttpCode, HttpError } from "../../common/http"
+import { HttpProvider, HttpResponse, Route, WsResponse } from "../http"
+
+/**
+ * Proxy HTTP provider.
+ */
+export class ProxyHttpProvider extends HttpProvider {
+  public async handleRequest(route: Route, request: http.IncomingMessage): Promise<HttpResponse> {
+    if (!this.authenticated(request)) {
+      if (this.isRoot(route)) {
+        return { redirect: "/login", query: { to: route.fullPath } }
+      }
+      throw new HttpError("Unauthorized", HttpCode.Unauthorized)
+    }
+
+    // Ensure there is a trailing slash so relative paths work correctly.
+    if (this.isRoot(route) && !route.fullPath.endsWith("/")) {
+      return {
+        redirect: `${route.fullPath}/`,
+      }
+    }
+
+    const port = route.base.replace(/^\//, "")
+    return {
+      proxy: {
+        strip: `${route.providerBase}/${port}`,
+        port,
+      },
+    }
+  }
+
+  public async handleWebSocket(route: Route, request: http.IncomingMessage): Promise<WsResponse> {
+    this.ensureAuthenticated(request)
+    const port = route.base.replace(/^\//, "")
+    return {
+      proxy: {
+        strip: `${route.providerBase}/${port}`,
+        port,
+      },
+    }
+  }
+}