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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set sw=2 ts=8 et tw=80 : */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/net/TRRServiceParent.h"
#include "mozilla/ipc/FileDescriptor.h"
#include "mozilla/net/SocketProcessParent.h"
#include "mozilla/psm/PSMIPCTypes.h"
#include "mozilla/Preferences.h"
#include "mozilla/Unused.h"
#include "nsICaptivePortalService.h"
#include "nsIParentalControlsService.h"
#include "nsINetworkLinkService.h"
#include "nsIObserverService.h"
#include "nsIOService.h"
#include "nsNetCID.h"
#include "TRRService.h"
namespace mozilla {
namespace net {
static const char kRolloutURIPref[] = "doh-rollout.uri";
static const char kRolloutModePref[] = "doh-rollout.mode";
static const char* gTRRUriCallbackPrefs[] = {
"network.trr.uri", "network.trr.mode", kRolloutURIPref, kRolloutModePref,
nullptr,
};
NS_IMPL_ISUPPORTS(TRRServiceParent, nsIObserver, nsISupportsWeakReference)
void TRRServiceParent::Init() {
MOZ_ASSERT(gIOService);
if (!gIOService->SocketProcessReady()) {
RefPtr<TRRServiceParent> self = this;
gIOService->CallOrWaitForSocketProcess([self]() { self->Init(); });
return;
}
SocketProcessParent* socketParent = SocketProcessParent::GetSingleton();
if (!socketParent) {
return;
}
nsCOMPtr<nsIObserverService> obs =
static_cast<nsIObserverService*>(gIOService);
TRRService::AddObserver(this, obs);
bool captiveIsPassed = TRRService::CheckCaptivePortalIsPassed();
bool parentalControlEnabled = TRRService::GetParentalControlEnabledInternal();
nsCOMPtr<nsINetworkLinkService> nls =
do_GetService(NS_NETWORK_LINK_SERVICE_CONTRACTID);
nsTArray<nsCString> suffixList;
if (nls) {
nls->GetDnsSuffixList(suffixList);
}
Preferences::RegisterPrefixCallbacks(TRRServiceParent::PrefsChanged,
gTRRUriCallbackPrefs, this);
prefsChanged(nullptr);
Unused << socketParent->SendPTRRServiceConstructor(
this, captiveIsPassed, parentalControlEnabled, suffixList);
}
NS_IMETHODIMP
TRRServiceParent::Observe(nsISupports* aSubject, const char* aTopic,
const char16_t* aData) {
if (!strcmp(aTopic, NS_DNS_SUFFIX_LIST_UPDATED_TOPIC) ||
!strcmp(aTopic, NS_NETWORK_LINK_TOPIC)) {
nsCOMPtr<nsINetworkLinkService> link = do_QueryInterface(aSubject);
// The network link service notification normally passes itself as the
// subject, but some unit tests will sometimes pass a null subject.
if (link) {
nsTArray<nsCString> suffixList;
link->GetDnsSuffixList(suffixList);
Unused << SendUpdatePlatformDNSInformation(suffixList);
}
if (!strcmp(aTopic, NS_NETWORK_LINK_TOPIC) && mURISetByDetection) {
CheckURIPrefs();
}
}
return NS_OK;
}
bool TRRServiceParent::MaybeSetPrivateURI(const nsACString& aURI) {
nsAutoCString newURI(aURI);
ProcessURITemplate(newURI);
if (mPrivateURI.Equals(newURI)) {
return false;
}
mPrivateURI = newURI;
nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
if (obs) {
obs->NotifyObservers(nullptr, NS_NETWORK_TRR_URI_CHANGED_TOPIC, nullptr);
}
return true;
}
void TRRServiceParent::SetDetectedTrrURI(const nsACString& aURI) {
if (mURIPrefHasUserValue) {
return;
}
mURISetByDetection = MaybeSetPrivateURI(aURI);
RefPtr<TRRServiceParent> self = this;
nsCString uri(aURI);
gIOService->CallOrWaitForSocketProcess(
[self, uri]() { Unused << self->SendSetDetectedTrrURI(uri); });
}
void TRRServiceParent::GetTrrURI(nsACString& aURI) { aURI = mPrivateURI; }
void TRRServiceParent::UpdateParentalControlEnabled() {
bool enabled = TRRService::GetParentalControlEnabledInternal();
RefPtr<TRRServiceParent> self = this;
gIOService->CallOrWaitForSocketProcess([self, enabled]() {
Unused << self->SendUpdateParentalControlEnabled(enabled);
});
}
// static
void TRRServiceParent::PrefsChanged(const char* aName, void* aSelf) {
static_cast<TRRServiceParent*>(aSelf)->prefsChanged(aName);
}
void TRRServiceParent::prefsChanged(const char* aName) {
if (!aName || !strcmp(aName, "network.trr.uri") ||
!strcmp(aName, kRolloutURIPref)) {
OnTRRURIChange();
}
if (!aName || !strcmp(aName, "network.trr.mode") ||
!strcmp(aName, kRolloutModePref)) {
OnTRRModeChange();
}
}
void TRRServiceParent::ActorDestroy(ActorDestroyReason why) {
Preferences::UnregisterPrefixCallbacks(TRRServiceParent::PrefsChanged,
gTRRUriCallbackPrefs, this);
}
} // namespace net
} // namespace mozilla
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