From 52a5e49150faa3bb8866a06c6e962dcb364d6f8e Mon Sep 17 00:00:00 2001
From: velzie <velzie@velzie.rip>
Date: Thu, 29 Aug 2024 15:39:49 -0400
Subject: [PATCH] proxy Object.getOwnPropertyDescriptor

---
 src/client/client.ts         |  5 +++--
 src/client/dom/element.ts    |  4 +++-
 src/client/natives.ts        |  3 +++
 src/client/shared/event.ts   |  3 ++-
 src/client/shared/realm.ts   |  4 ++--
 src/client/shared/unproxy.ts | 29 +++++++++++++++++++++++++++++
 src/worker/fetch.ts          |  6 +++---
 7 files changed, 45 insertions(+), 9 deletions(-)
 create mode 100644 src/client/natives.ts

diff --git a/src/client/client.ts b/src/client/client.ts
index 07ccbaa..84e6b63 100644
--- a/src/client/client.ts
+++ b/src/client/client.ts
@@ -2,6 +2,7 @@ import { createDocumentProxy } from "./document";
 import { createGlobalProxy } from "./global";
 import { getOwnPropertyDescriptorHandler } from "./helpers";
 import { createLocationProxy } from "./location";
+import { nativeGetOwnPropertyDescriptor } from "./natives";
 import { CookieStore, config, decodeUrl } from "./shared";
 
 declare global {
@@ -236,7 +237,7 @@ export class ScramjetClient {
 		const prop = split.pop();
 		const target = split.reduce((a, b) => a?.[b], this.global);
 
-		const original = Object.getOwnPropertyDescriptor(target, prop);
+		const original = nativeGetOwnPropertyDescriptor(target, prop);
 		this.descriptors[name] = original;
 
 		return this.RawTrap(target, prop, descriptor);
@@ -250,7 +251,7 @@ export class ScramjetClient {
 		if (!prop) return;
 		if (!Reflect.has(target, prop)) return;
 
-		const oldDescriptor = Object.getOwnPropertyDescriptor(target, prop);
+		const oldDescriptor = nativeGetOwnPropertyDescriptor(target, prop);
 
 		const ctx: TrapCtx<T> = {
 			this: null,
diff --git a/src/client/dom/element.ts b/src/client/dom/element.ts
index d0ce2f8..c7bd02e 100644
--- a/src/client/dom/element.ts
+++ b/src/client/dom/element.ts
@@ -1,4 +1,5 @@
 import { ScramjetClient } from "../client";
+import { nativeGetOwnPropertyDescriptor } from "../natives";
 import { config, decodeUrl, htmlRules, unrewriteHtml } from "../shared";
 import {
 	encodeUrl,
@@ -33,7 +34,7 @@ export default function (client: ScramjetClient, self: typeof window) {
 
 	for (const attr of attrs) {
 		for (const element of attrObject[attr]) {
-			const descriptor = Object.getOwnPropertyDescriptor(
+			const descriptor = nativeGetOwnPropertyDescriptor(
 				element.prototype,
 				attr
 			);
@@ -167,6 +168,7 @@ export default function (client: ScramjetClient, self: typeof window) {
 
 	client.Trap("Node.prototype.ownerDocument", {
 		get(ctx) {
+			return client.documentProxy;
 			let doc = ctx.get() as Document | null;
 			if (!doc) return null;
 
diff --git a/src/client/natives.ts b/src/client/natives.ts
new file mode 100644
index 0000000..39e75d5
--- /dev/null
+++ b/src/client/natives.ts
@@ -0,0 +1,3 @@
+export const nativeFunction = self.Function;
+export const nativeGetOwnPropertyDescriptor =
+	self.Object.getOwnPropertyDescriptor;
diff --git a/src/client/shared/event.ts b/src/client/shared/event.ts
index fa12395..e2d2114 100644
--- a/src/client/shared/event.ts
+++ b/src/client/shared/event.ts
@@ -1,6 +1,7 @@
 import { iswindow } from "..";
 import { ScramjetClient } from "../client";
 import { getOwnPropertyDescriptorHandler } from "../helpers";
+import { nativeGetOwnPropertyDescriptor } from "../natives";
 import { unproxy } from "./unproxy";
 
 const realOnEvent = Symbol.for("scramjet original onevent function");
@@ -138,7 +139,7 @@ export default function (client: ScramjetClient, self: Self) {
 				key.startsWith("on") &&
 				handlers[key.slice(2)]
 			) {
-				const descriptor = Object.getOwnPropertyDescriptor(target, key);
+				const descriptor = nativeGetOwnPropertyDescriptor(target, key);
 				if (!descriptor.get || !descriptor.set || !descriptor.configurable)
 					continue;
 
diff --git a/src/client/shared/realm.ts b/src/client/shared/realm.ts
index b6300e1..35564ee 100644
--- a/src/client/shared/realm.ts
+++ b/src/client/shared/realm.ts
@@ -19,8 +19,8 @@ export default function (client: ScramjetClient, self: typeof globalThis) {
 
 			return this;
 		},
-		writable: false,
-		configurable: false,
+		writable: true,
+		configurable: true,
 		enumerable: false,
 	});
 }
diff --git a/src/client/shared/unproxy.ts b/src/client/shared/unproxy.ts
index 544aef6..c7c01a7 100644
--- a/src/client/shared/unproxy.ts
+++ b/src/client/shared/unproxy.ts
@@ -41,6 +41,35 @@ export default function (client: ScramjetClient, self: typeof window) {
 			} catch (e) {}
 		}
 	}
+
+	client.Proxy("Object.getOwnPropertyDescriptor", {
+		apply(ctx) {
+			const desc = ctx.fn.apply(ctx.this, ctx.args);
+
+			if (!desc) return;
+
+			if (desc.get) {
+				client.RawProxy(desc, "get", {
+					apply(ctx) {
+						// value of this in the getter needs to be corrected
+						unproxy(ctx, client);
+					},
+				});
+			}
+
+			if (desc.set) {
+				client.RawProxy(desc, "set", {
+					apply(ctx) {
+						unproxy(ctx, client);
+					},
+				});
+			}
+
+			// i don't think we have to care about value but it's worth looking into
+
+			ctx.return(desc);
+		},
+	});
 }
 
 export function unproxy(ctx: ProxyCtx, client: ScramjetClient) {
diff --git a/src/worker/fetch.ts b/src/worker/fetch.ts
index 8a0816b..c3937a4 100644
--- a/src/worker/fetch.ts
+++ b/src/worker/fetch.ts
@@ -95,9 +95,9 @@ export async function swfetch(
 		}
 
 		// TODO this is wrong somehow
-		// headers.set("Sec-Fetch-Mode", "cors");
-		// headers.set("Sec-Fetch-Site", "same-origin");
-		// headers.set("Sec-Fetch-Dest", "empty");
+		headers.set("Sec-Fetch-Mode", "cors");
+		headers.set("Sec-Fetch-Site", "same-origin");
+		headers.set("Sec-Fetch-Dest", "empty");
 
 		const response: BareResponseFetch = await this.client.fetch(url, {
 			method: request.method,