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Improve origin-clean algorithm

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wolfbeast 2019-05-27 19:19:27 +02:00 • committed by Roy Tam
commit 85e68b684f
5 changed files with 41 additions and 39 deletions
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20
dom/canvas/CanvasUtils.cpp
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@ -126,5 +126,25 @@ CoerceDouble(const JS::Value& v, double* d)
return true;
}
bool CheckWriteOnlySecurity(bool aCORSUsed, nsIPrincipal* aPrincipal) {
if (!aPrincipal) {
return true;
}
if (!aCORSUsed) {
nsIGlobalObject* incumbentSettingsObject = dom::GetIncumbentGlobal();
if (NS_WARN_IF(!incumbentSettingsObject)) {
return true;
}
nsIPrincipal* principal = incumbentSettingsObject->PrincipalOrNull();
if (NS_WARN_IF(!principal) || !(principal->Subsumes(aPrincipal))) {
return true;
}
}
return false;
}
} // namespace CanvasUtils
} // namespace mozilla