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Issue #unknown, Reload Flooding prevention.

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This commit is contained in:
roytam1 2021-12-14 22:54:20 +08:00
commit 26ae6482f6
3 changed files with 55 additions and 0 deletions
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41
docshell/base/nsDocShell.cpp
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@ -822,6 +822,8 @@ nsDocShell::nsDocShell()
, mTouchEventsOverride(nsIDocShell::TOUCHEVENTS_OVERRIDE_NONE)
, mStateFloodGuardCount(0)
, mStateFloodGuardReported(false)
, mReloadFloodGuardCount(0)
, mReloadFloodGuardReported(false)
{
AssertOriginAttributesMatchPrivateBrowsing();
mHistoryID = ++gDocshellIDCounter;
@ -5329,6 +5331,25 @@ nsDocShell::LoadErrorPage(nsIURI* aURI, const char16_t* aURL,
nullptr);
}
bool
nsDocShell::IsReloadFlooding()
{
if (mReloadFloodGuardCount > kReloadLimit) {
TimeStamp now = TimeStamp::Now();
if (now - mReloadFloodGuardUpdated > TimeDuration::FromSeconds(kReloadTimeSecs)) {
mReloadFloodGuardCount = 0;
mReloadFloodGuardUpdated = now;
mReloadFloodGuardReported = false;
return false;
}
return true;
}
mReloadFloodGuardCount++;
return false;
}
NS_IMETHODIMP
nsDocShell::Reload(uint32_t aReloadFlags)
{
@ -5354,6 +5375,26 @@ nsDocShell::Reload(uint32_t aReloadFlags)
shistInt->NotifyOnHistoryReload(mCurrentURI, aReloadFlags, &canReload);
}
// If we're being flooded with reload requests, we should abort early
// from the reload logic.
if (IsReloadFlooding()) {
// Report a warning to the console to tell developers why their reload
// failed.
// Do this only if not yet marked reported so we only report it once per
// flood interval.
if (!mReloadFloodGuardReported) {
#if 0
nsContentUtils::ReportToConsole(nsIScriptError::warningFlag,
NS_LITERAL_CSTRING("Reload"),
GetDocument(),
nsContentUtils::eDOM_PROPERTIES,
"ReloadFloodingPrevented");
#endif
mReloadFloodGuardReported = true;
}
return NS_OK;
}
if (!canReload) {
return NS_OK;
}