security-and-privacy/CanvasBlocker
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CanvasBlocker
mirror of https://github.com/kkapsner/CanvasBlocker
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Only check for prototype loops when there is a prototype 

For #705
This commit is contained in:
kkapsner 2024-04-17 00:07:16 +02:00
parent bebcec2139
commit 3eedc7b7dc
2 changed files with 18 additions and 10 deletions
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24
lib/extension.js
View File

@ -179,12 +179,14 @@
if (proxies.has(prototype)){
prototype = proxies.get(prototype).wrappedOriginal;
}
const grandPrototype = wrappedReflect.getPrototypeOf(prototype);
if (proxies.has(grandPrototype)){
const testPrototype = wrappedWindow.Object.create(proxies.get(grandPrototype).wrappedOriginal);
const value = originalReflectSetPrototypeOf.call(wrappedReflect, target, testPrototype);
if (!value){
return false;
if (prototype){
const grandPrototype = wrappedReflect.getPrototypeOf(prototype);
if (proxies.has(grandPrototype)){
const testPrototype = wrappedWindow.Object.create(proxies.get(grandPrototype).wrappedOriginal);
const value = originalReflectSetPrototypeOf.call(wrappedReflect, target, testPrototype);
if (!value){
return false;
}
}
}
const value = originalReflectSetPrototypeOf.call(wrappedReflect, target, scope.getWrapped(prototype));
@ -225,10 +227,12 @@
if (proxies.has(prototype)){
prototype = proxies.get(prototype).wrappedOriginal;
}
const grandPrototype = wrappedObject.getPrototypeOf(prototype);
if (proxies.has(grandPrototype)){
const testPrototype = wrappedObject.create(proxies.get(grandPrototype).wrappedOriginal);
wrappedObject.setPrototypeOf(target, testPrototype);
if (prototype){
const grandPrototype = wrappedObject.getPrototypeOf(prototype);
if (proxies.has(grandPrototype)){
const testPrototype = wrappedObject.create(proxies.get(grandPrototype).wrappedOriginal);
wrappedObject.setPrototypeOf(target, testPrototype);
}
}
return wrappedObject.setPrototypeOf(target, scope.getWrapped(prototype));
}, window, "");

4
versions/updates.json
View File

@ -333,6 +333,10 @@
{
"version": "1.10.20240408",
"update_link": "https://canvasblocker.kkapsner.de/versions/canvasblocker_beta-1.10.20240408.xpi"
},
{
"version": "1.11.20240417",
"update_link": "https://canvasblocker.kkapsner.de/versions/canvasblocker_beta-1.11.20240417.xpi"
}
]
}