Update path syntax for Express

It seems that * matches a literal * now, so we have to use a regular
expression.

Parentheses around a parameter no longer works (it causes it to match on
the parameter name literally) and I am not sure why we had it anyway as
it had no effect previously.

Matching with a leading / does not appear to work either, but we do not
need the leading / anyway since the proxy logic was changed to use the
whole path.  Consequently it will never be / anymore from what I can
tell but I left that check in just in case.  I turned it into a named
parameter as well, because that seems better.

src/node/routes/domainProxy.ts

@@ -53,7 +53,7 @@ const maybeProxy = (req: Request): string | undefined => {
   return undefined
 }
 
-router.all("*", async (req, res, next) => {
+router.all(/.*/, async (req, res, next) => {
   const port = maybeProxy(req)
   if (!port) {
     return next()
@@ -97,7 +97,7 @@ router.all("*", async (req, res, next) => {
 
 export const wsRouter = WsRouter()
 
-wsRouter.ws("*", async (req, _, next) => {
+wsRouter.ws(/.*/, async (req, _, next) => {
   const port = maybeProxy(req)
   if (!port) {
     return next()

src/node/routes/index.ts

@@ -109,21 +109,21 @@ export const register = async (app: App, args: DefaultedArgs): Promise<Disposabl
   app.router.use("/", domainProxy.router)
   app.wsRouter.use("/", domainProxy.wsRouter.router)
 
-  app.router.all("/proxy/(:port)(/*)?", async (req, res) => {
+  app.router.all("/proxy/:port/:path(.*)?", async (req, res) => {
     await pathProxy.proxy(req, res)
   })
-  app.wsRouter.get("/proxy/(:port)(/*)?", async (req) => {
+  app.wsRouter.get("/proxy/:port/:path(.*)?", async (req) => {
     await pathProxy.wsProxy(req as pluginapi.WebsocketRequest)
   })
   // These two routes pass through the path directly.
   // So the proxied app must be aware it is running
   // under /absproxy/<someport>/
-  app.router.all("/absproxy/(:port)(/*)?", async (req, res) => {
+  app.router.all("/absproxy/:port/:path(.*)?", async (req, res) => {
     await pathProxy.proxy(req, res, {
       passthroughPath: true,
     })
   })
-  app.wsRouter.get("/absproxy/(:port)(/*)?", async (req) => {
+  app.wsRouter.get("/absproxy/:port/:path(.*)?", async (req) => {
     await pathProxy.wsProxy(req as pluginapi.WebsocketRequest, {
       passthroughPath: true,
     })

src/node/routes/pathProxy.ts

@@ -22,7 +22,7 @@ export async function proxy(
 
   if (!(await authenticated(req))) {
     // If visiting the root (/:port only) redirect to the login page.
-    if (!req.params[0] || req.params[0] === "/") {
+    if (!req.params.path || req.params.path === "/") {
       const to = self(req)
       return redirect(req, res, "login", {
         to: to !== "/" ? to : undefined,

src/node/routes/vscode.ts

@@ -205,8 +205,8 @@ export class CodeServerRouteWrapper {
     this.router.get("/", this.ensureCodeServerLoaded, this.$root)
     this.router.get("/manifest.json", this.manifest)
     this.router.post("/mint-key", this.mintKey)
-    this.router.all("*", ensureAuthenticated, this.ensureCodeServerLoaded, this.$proxyRequest)
-    this._wsRouterWrapper.ws("*", ensureOrigin, ensureAuthenticated, this.ensureCodeServerLoaded, this.$proxyWebsocket)
+    this.router.all(/.*/, ensureAuthenticated, this.ensureCodeServerLoaded, this.$proxyRequest)
+    this._wsRouterWrapper.ws(/.*/, ensureOrigin, ensureAuthenticated, this.ensureCodeServerLoaded, this.$proxyWebsocket)
   }
 
   dispose() {

test/unit/node/proxy.test.ts

@@ -199,7 +199,7 @@ describe("proxy", () => {
   })
 
   it("should proxy non-ASCII", async () => {
-    e.get("*", (req, res) => {
+    e.get(/.*/, (req, res) => {
       res.json("ほげ")
     })
     codeServer = await integration.setup(["--auth=none"], "")
@@ -211,7 +211,7 @@ describe("proxy", () => {
 
   it("should not double-encode query variables", async () => {
     const spy = jest.fn()
-    e.get("*", (req, res) => {
+    e.get(/.*/, (req, res) => {
       spy([req.originalUrl, req.query])
       res.end()
     })