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Revert "Issue #2258 - Part 1: Support XCTO:nosniff when navigating."

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This reverts commit f48c770701e62c382631620f4caa1fdc5ab1d7ae.
This commit is contained in:
Moonchild 2025-09-23 18:17:52 +02:00 • committed by roytam1
commit 0d00c84033
10 changed files with 5 additions and 103 deletions
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18
netwerk/base/LoadInfo.cpp
View file

@ -66,7 +66,6 @@ LoadInfo::LoadInfo(nsIPrincipal* aLoadingPrincipal,
, mForcePreflight(false)
, mIsPreflight(false)
, mLoadTriggeredFromExternal(false)
, mSkipContentSniffing(false)
, mIsFromProcessingFrameAttributes(false)
{
MOZ_ASSERT(mLoadingPrincipal);
@ -242,7 +241,6 @@ LoadInfo::LoadInfo(nsPIDOMWindowOuter* aOuterWindow,
, mForcePreflight(false)
, mIsPreflight(false)
, mLoadTriggeredFromExternal(false)
, mSkipContentSniffing(false)
, mIsFromProcessingFrameAttributes(false)
{
// Top-level loads are never third-party
@ -307,7 +305,6 @@ LoadInfo::LoadInfo(const LoadInfo& rhs)
, mForcePreflight(rhs.mForcePreflight)
, mIsPreflight(rhs.mIsPreflight)
, mLoadTriggeredFromExternal(rhs.mLoadTriggeredFromExternal)
, mSkipContentSniffing(rhs.mSkipContentSniffing)
, mIsFromProcessingFrameAttributes(rhs.mIsFromProcessingFrameAttributes)
{
}
@ -336,8 +333,7 @@ LoadInfo::LoadInfo(nsIPrincipal* aLoadingPrincipal,
const nsTArray<nsCString>& aCorsUnsafeHeaders,
bool aForcePreflight,
bool aIsPreflight,
bool aLoadTriggeredFromExternal,
bool aSkipContentSniffing)
bool aLoadTriggeredFromExternal)
: mLoadingPrincipal(aLoadingPrincipal)
, mTriggeringPrincipal(aTriggeringPrincipal)
, mPrincipalToInherit(aPrincipalToInherit)
@ -361,7 +357,6 @@ LoadInfo::LoadInfo(nsIPrincipal* aLoadingPrincipal,
, mForcePreflight(aForcePreflight)
, mIsPreflight(aIsPreflight)
, mLoadTriggeredFromExternal(aLoadTriggeredFromExternal)
, mSkipContentSniffing(aSkipContentSniffing)
, mIsFromProcessingFrameAttributes(false)
{
// Only top level TYPE_DOCUMENT loads can have a null loadingPrincipal
@ -970,17 +965,6 @@ LoadInfo::MaybeIncreaseTainting(uint32_t aTainting)
return NS_OK;
}
NS_IMETHODIMP
LoadInfo::GetSkipContentSniffing(bool* aSkipContentSniffing) {
*aSkipContentSniffing = mSkipContentSniffing;
return NS_OK;
}
NS_IMETHODIMP
LoadInfo::SetSkipContentSniffing(bool aSkipContentSniffing) {
mSkipContentSniffing = aSkipContentSniffing;
return NS_OK;
}
NS_IMETHODIMP
LoadInfo::GetIsTopLevelLoad(bool *aResult)
{

4
netwerk/base/LoadInfo.h
View file

@ -111,8 +111,7 @@ private:
const nsTArray<nsCString>& aUnsafeHeaders,
bool aForcePreflight,
bool aIsPreflight,
bool aLoadTriggeredFromExternal,
bool aSkipContentSniffing);
bool aLoadTriggeredFromExternal);
LoadInfo(const LoadInfo& rhs);
friend nsresult
@ -158,7 +157,6 @@ private:
bool mForcePreflight;
bool mIsPreflight;
bool mLoadTriggeredFromExternal;
bool mSkipContentSniffing;
// Is true if this load was triggered by processing the attributes of the
// browsing context container.

9
netwerk/base/nsILoadInfo.idl
View file

@ -367,15 +367,6 @@ interface nsILoadInfo : nsISupports
*/
[infallible] readonly attribute unsigned long securityMode;
/**
* This flag is used for any browsing context where we should not sniff
* the content type. E.g if an iframe has the XCTO nosniff header, then
* that flag is set to true so we skip content sniffing for that browsing
* context.
*/
[infallible] attribute boolean skipContentSniffing;
/**
* True if this request is embedded in a context that can't be third-party
* (i.e. an iframe embedded in a cross-origin parent window). If this is

10
netwerk/base/nsNetUtil.cpp
View file

@ -2129,16 +2129,6 @@ NS_SniffContent(const char *aSnifferType, nsIRequest *aRequest,
const uint8_t *aData, uint32_t aLength,
nsACString &aSniffedType)
{
// In case XCTO nosniff was present, we could just skip sniffing here
nsCOMPtr<nsIChannel> channel = do_QueryInterface(aRequest);
if (channel) {
nsCOMPtr<nsILoadInfo> loadInfo = channel->GetLoadInfo();
if (loadInfo->GetSkipContentSniffing()) {
aSniffedType.Truncate();
return;
}
}
typedef nsCategoryCache<nsIContentSniffer> ContentSnifferCache;
extern ContentSnifferCache* gNetSniffers;
extern ContentSnifferCache* gDataSniffers;