feat(runtime): implement `server.requestIp` + node:http `socket.address()` (#6165)

* [server] requestIp and AnyRequestContext
Changed Request.uws_request to the new AnyRequestContext. This
allows grabbing the IP from a Request. Unfinished.

* [server] basic `requestIp` implementation

Currently using uws's requestIpAsText, which always returns a ipv6
string. We should return a `SocketAddress` object to the user instead,
which will contain the formatted address string and what type it is.
We'll have to use requestIpAsBinary and parse that ourselves.

* TypeScript docs, use `bun.String`, return `undefined` instead of `null`
if we can't get the ip.

* binary address formatting

* uws getRemoteAddress binding

* remove dead code

* working

* final touches:sparkles:

* I will abide by the results of this poll.

---------

Co-authored-by: Parzival-3141 <29632054+Parzival-3141@users.noreply.github.com>

1 files changed, 36 insertions, 0 deletions

diff --git a/test/js/bun/http/serve.test.ts b/test/js/bun/http/serve.test.ts
index c9fd47475..be271cf33 100644
--- a/test/js/bun/http/serve.test.ts
+++ b/test/js/bun/http/serve.test.ts
@@ -1212,3 +1212,39 @@ it("#5859 arrayBuffer", async () => {
   await Bun.write("/tmp/bad", new Uint8Array([0xfd]));
   expect(async () => await Bun.file("/tmp/bad").json()).toThrow();
 });
+
+it("server.requestIP (v4)", async () => {
+  const server = Bun.serve({
+    port: 0,
+    fetch(req, server) {
+      return Response.json(server.requestIP(req));
+    },
+    hostname: "127.0.0.1",
+  });
+
+  const response = await fetch(`http://${server.hostname}:${server.port}`).then(x => x.json());
+  expect(response).toEqual({
+    address: "127.0.0.1",
+    family: "IPv4",
+    port: expect.any(Number),
+  });
+  server.stop(true);
+});
+
+it("server.requestIP (v6)", async () => {
+  const server = Bun.serve({
+    port: 0,
+    fetch(req, server) {
+      return Response.json(server.requestIP(req));
+    },
+    hostname: "0000:0000:0000:0000:0000:0000:0000:0001",
+  });
+
+  const response = await fetch(`http://localhost:${server.port}`).then(x => x.json());
+  expect(response).toEqual({
+    address: "0000:0000:0000:0000:0000:0000:0000:0001",
+    family: "IPv6",
+    port: expect.any(Number),
+  });
+  server.stop(true);
+});