gecko-dev/netwerk/base/nsIOService.cpp at master · mozilla/gecko-dev · GitHub

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim:set ts=4 sw=2 cindent et: */

/* 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/DebugOnly.h"

#include "nsIOService.h"

#include "nsIProtocolHandler.h"

#include "nsIFileProtocolHandler.h"

#include "nscore.h"

#include "nsIURI.h"

#include "prprf.h"

#include "netCore.h"

#include "nsIObserverService.h"

#include "nsXPCOM.h"

#include "nsIProxiedProtocolHandler.h"

#include "nsIProxyInfo.h"

#include "nsDNSService2.h"

#include "nsEscape.h"

#include "nsNetUtil.h"

#include "nsNetCID.h"

#include "nsCRT.h"

#include "nsSimpleNestedURI.h"

#include "nsSocketTransport2.h"

#include "nsTArray.h"

#include "nsIConsoleService.h"

#include "nsIUploadChannel2.h"

#include "nsXULAppAPI.h"

#include "nsIProtocolProxyCallback.h"

#include "nsICancelable.h"

#include "nsINetworkLinkService.h"

#include "nsAsyncRedirectVerifyHelper.h"

#include "nsURLHelper.h"

#include "nsIProtocolProxyService2.h"

#include "MainThreadUtils.h"

#include "nsINode.h"

#include "nsIWebTransport.h"

#include "nsIWidget.h"

#include "nsThreadUtils.h"

#include "WebTransportSessionProxy.h"

#include "mozilla/AppShutdown.h"

#include "mozilla/Components.h"

#include "mozilla/LoadInfo.h"

#include "mozilla/net/NeckoCommon.h"

#include "mozilla/Services.h"

#include "mozilla/net/DNS.h"

#include "mozilla/ipc/URIUtils.h"

#include "mozilla/net/NeckoChild.h"

#include "mozilla/net/NeckoParent.h"

#include "mozilla/dom/ClientInfo.h"

#include "mozilla/dom/ContentParent.h"

#include "mozilla/dom/nsHTTPSOnlyUtils.h"

#include "mozilla/dom/ServiceWorkerDescriptor.h"

#include "mozilla/net/CaptivePortalService.h"

#include "mozilla/net/NetworkConnectivityService.h"

#include "mozilla/net/SocketProcessHost.h"

#include "mozilla/net/SocketProcessParent.h"

#include "mozilla/net/SSLTokensCache.h"

#include "mozilla/StoragePrincipalHelper.h"

#include "mozilla/Unused.h"

#include "nsContentSecurityManager.h"

#include "nsContentUtils.h"

#include "mozilla/StaticPrefs_network.h"

#include "mozilla/StaticPrefs_security.h"

#include "mozilla/glean/NetwerkMetrics.h"

#include "nsNSSComponent.h"

#include "IPv4Parser.h"

#include "ssl.h"

#include "StaticComponents.h"

#include "SuspendableChannelWrapper.h"

#ifdef MOZ_WIDGET_ANDROID

# include <regex>

# include "AndroidBridge.h"

# include "mozilla/java/GeckoAppShellWrappers.h"

# include "mozilla/jni/Utils.h"

#endif

namespace mozilla {

namespace net {

using mozilla::Maybe;

using mozilla::dom::ClientInfo;

using mozilla::dom::ServiceWorkerDescriptor;

#define PORT_PREF_PREFIX "network.security.ports."

#define PORT_PREF(x) PORT_PREF_PREFIX x

#define MANAGE_OFFLINE_STATUS_PREF "network.manage-offline-status"

// Nb: these have been misnomers since bug 715770 removed the buffer cache.

// "network.segment.count" and "network.segment.size" would be better names,

// but the old names are still used to preserve backward compatibility.

#define NECKO_BUFFER_CACHE_COUNT_PREF "network.buffer.cache.count"

#define NECKO_BUFFER_CACHE_SIZE_PREF "network.buffer.cache.size"

#define NETWORK_CAPTIVE_PORTAL_PREF "network.captive-portal-service.enabled"

#define WEBRTC_PREF_PREFIX "media.peerconnection."

#define NETWORK_DNS_PREF "network.dns."

#define FORCE_EXTERNAL_PREF_PREFIX "network.protocol-handler.external."

// prefs for overriding IPAddress->IpAddressSpace mapping

#define PREF_LNA_IP_ADDR_SPACE_PUBLIC \

"network.lna.address_space.public.override"

#define PREF_LNA_IP_ADDR_SPACE_PRIVATE \

"network.lna.address_space.private.override"

#define PREF_LNA_IP_ADDR_SPACE_LOCAL "network.lna.address_space.local.override"

nsIOService* gIOService;

static bool gHasWarnedUploadChannel2;

static bool gCaptivePortalEnabled = false;

static LazyLogModule gIOServiceLog("nsIOService");

#undef LOG

#define LOG(args) MOZ_LOG(gIOServiceLog, LogLevel::Debug, args)

// A general port blacklist. Connections to these ports will not be allowed

// unless the protocol overrides.

// This list is to be kept in sync with "bad ports" as defined in the

// WHATWG Fetch standard at <https://fetch.spec.whatwg.org/#port-blocking>

int16_t gBadPortList[] = {

1, // tcpmux

7, // echo

9, // discard

11, // systat

13, // daytime

15, // netstat

17, // qotd

19, // chargen

20, // ftp-data

21, // ftp

22, // ssh

23, // telnet

25, // smtp

37, // time

42, // name

43, // nicname

53, // domain

69, // tftp

77, // priv-rjs

79, // finger

87, // ttylink

95, // supdup

101, // hostriame

102, // iso-tsap

103, // gppitnp

104, // acr-nema

109, // pop2

110, // pop3

111, // sunrpc

113, // auth

115, // sftp

117, // uucp-path

119, // nntp

123, // ntp

135, // loc-srv / epmap

137, // netbios

139, // netbios

143, // imap2

161, // snmp

179, // bgp

389, // ldap

427, // afp (alternate)

465, // smtp (alternate)

512, // print / exec

513, // login

514, // shell

515, // printer

526, // tempo

530, // courier

531, // chat

532, // netnews

540, // uucp

548, // afp

554, // rtsp

556, // remotefs

563, // nntp+ssl

587, // smtp (outgoing)

601, // syslog-conn

636, // ldap+ssl

989, // ftps-data

990, // ftps

993, // imap+ssl

995, // pop3+ssl

1719, // h323gatestat

1720, // h323hostcall

1723, // pptp

2049, // nfs

3659, // apple-sasl

4045, // lockd

4190, // sieve

5060, // sip

5061, // sips

6000, // x11

6566, // sane-port

6665, // irc (alternate)

6666, // irc (alternate)

6667, // irc (default)

6668, // irc (alternate)

6669, // irc (alternate)

6679, // osaut

6697, // irc+tls

10080, // amanda

0, // Sentinel value: This MUST be zero

};

static const char kProfileChangeNetTeardownTopic[] =

"profile-change-net-teardown";

static const char kProfileChangeNetRestoreTopic[] =

"profile-change-net-restore";

static const char kProfileDoChange[] = "profile-do-change";

// Necko buffer defaults

uint32_t nsIOService::gDefaultSegmentSize = 4096;

uint32_t nsIOService::gDefaultSegmentCount = 24;

uint32_t nsIOService::sSocketProcessCrashedCount = 0;

////////////////////////////////////////////////////////////////////////////////

nsIOService::nsIOService()

: mLastOfflineStateChange(PR_IntervalNow()),

mLastConnectivityChange(PR_IntervalNow()),

mLastNetworkLinkChange(PR_IntervalNow()) {}

static const char* gCallbackPrefs[] = {

PORT_PREF_PREFIX,

MANAGE_OFFLINE_STATUS_PREF,

NECKO_BUFFER_CACHE_COUNT_PREF,

NECKO_BUFFER_CACHE_SIZE_PREF,

NETWORK_CAPTIVE_PORTAL_PREF,

FORCE_EXTERNAL_PREF_PREFIX,

SIMPLE_URI_SCHEMES_PREF,

PREF_LNA_IP_ADDR_SPACE_PUBLIC,

PREF_LNA_IP_ADDR_SPACE_PRIVATE,

PREF_LNA_IP_ADDR_SPACE_LOCAL,

nullptr,

};

static const char* gCallbackPrefsForSocketProcess[] = {

WEBRTC_PREF_PREFIX,

NETWORK_DNS_PREF,

"network.send_ODA_to_content_directly",

"network.trr.",

"doh-rollout.",

"network.dns.disableIPv6",

"network.offline-mirrors-connectivity",

"network.disable-localhost-when-offline",

"network.proxy.parse_pac_on_socket_process",

"network.proxy.allow_hijacking_localhost",

"network.connectivity-service.",

"network.captive-portal-service.testMode",

"network.socket.ip_addr_any.disabled",

"network.socket.attach_mock_network_layer",

"network.lna.enabled",

"network.lna.blocking",

nullptr,

};

static const char* gCallbackSecurityPrefs[] = {

// Note the prefs listed below should be in sync with the code in

// HandleTLSPrefChange().

"security.tls.version.min",

"security.tls.version.max",

"security.tls.version.enable-deprecated",

"security.tls.hello_downgrade_check",

"security.ssl.require_safe_negotiation",

"security.ssl.enable_false_start",

"security.ssl.enable_alpn",

"security.tls.enable_0rtt_data",

"security.ssl.disable_session_identifiers",

"security.tls.enable_post_handshake_auth",

"security.tls.enable_delegated_credentials",

nullptr,

};

nsresult nsIOService::Init() {

SSLTokensCache::Init();

InitializeCaptivePortalService();

// setup our bad port list stuff

for (int i = 0; gBadPortList[i]; i++) {

// We can't be accessed by another thread yet

MOZ_PUSH_IGNORE_THREAD_SAFETY

mRestrictedPortList.AppendElement(gBadPortList[i]);

MOZ_POP_THREAD_SAFETY

}

// Further modifications to the port list come from prefs

Preferences::RegisterPrefixCallbacks(nsIOService::PrefsChanged,

gCallbackPrefs, this);

PrefsChanged();

mSocketProcessTopicBlockedList.Insert(

nsLiteralCString(NS_XPCOM_WILL_SHUTDOWN_OBSERVER_ID));

mSocketProcessTopicBlockedList.Insert(

nsLiteralCString(NS_XPCOM_SHUTDOWN_OBSERVER_ID));

mSocketProcessTopicBlockedList.Insert("xpcom-shutdown-threads"_ns);

mSocketProcessTopicBlockedList.Insert("profile-do-change"_ns);

mSocketProcessTopicBlockedList.Insert("network:socket-process-crashed"_ns);

// Register for profile change notifications

mObserverService = services::GetObserverService();

AddObserver(this, kProfileChangeNetTeardownTopic, true);

AddObserver(this, kProfileChangeNetRestoreTopic, true);

AddObserver(this, kProfileDoChange, true);

AddObserver(this, NS_XPCOM_SHUTDOWN_OBSERVER_ID, true);

AddObserver(this, NS_NETWORK_LINK_TOPIC, true);

AddObserver(this, NS_NETWORK_ID_CHANGED_TOPIC, true);

AddObserver(this, NS_WIDGET_WAKE_OBSERVER_TOPIC, true);

// Register observers for sending notifications to nsSocketTransportService

if (XRE_IsParentProcess()) {

AddObserver(this, "profile-initial-state", true);

AddObserver(this, NS_WIDGET_SLEEP_OBSERVER_TOPIC, true);

}

if (IsSocketProcessChild()) {

Preferences::RegisterCallbacks(nsIOService::OnTLSPrefChange,

gCallbackSecurityPrefs, this);

}

gIOService = this;

InitializeNetworkLinkService();

InitializeProtocolProxyService();

SetOffline(false);

return NS_OK;

}

NS_IMETHODIMP

nsIOService::AddObserver(nsIObserver* aObserver, const char* aTopic,

bool aOwnsWeak) {

if (!mObserverService) {

return NS_ERROR_FAILURE;

}

// Register for the origional observer.

nsresult rv = mObserverService->AddObserver(aObserver, aTopic, aOwnsWeak);

if (NS_FAILED(rv)) {

return rv;

}

if (!XRE_IsParentProcess()) {

return NS_OK;

}

nsAutoCString topic(aTopic);

// This happens when AddObserver() is called by nsIOService::Init(). We don't

// want to add nsIOService again.

if (SameCOMIdentity(aObserver, static_cast<nsIObserver*>(this))) {

mIOServiceTopicList.Insert(topic);

return NS_OK;

}

if (!UseSocketProcess()) {

return NS_OK;

}

if (mSocketProcessTopicBlockedList.Contains(topic)) {

return NS_ERROR_FAILURE;

}

// Avoid registering duplicate topics.

if (mObserverTopicForSocketProcess.Contains(topic)) {

return NS_ERROR_FAILURE;

}

mObserverTopicForSocketProcess.Insert(topic);

// Avoid registering duplicate topics.

if (mIOServiceTopicList.Contains(topic)) {

return NS_ERROR_FAILURE;

}

return mObserverService->AddObserver(this, aTopic, true);

}

NS_IMETHODIMP

nsIOService::RemoveObserver(nsIObserver* aObserver, const char* aTopic) {

return NS_ERROR_NOT_IMPLEMENTED;

}

NS_IMETHODIMP

nsIOService::EnumerateObservers(const char* aTopic,

nsISimpleEnumerator** anEnumerator) {

return NS_ERROR_NOT_IMPLEMENTED;

}

NS_IMETHODIMP nsIOService::NotifyObservers(nsISupports* aSubject,

const char* aTopic,

const char16_t* aSomeData) {

return NS_ERROR_NOT_IMPLEMENTED;

}

nsIOService::~nsIOService() {

if (gIOService) {

MOZ_ASSERT(gIOService == this);

gIOService = nullptr;

}

#ifdef MOZ_WIDGET_ANDROID

bool nsIOService::ShouldAddAdditionalSearchHeaders(nsIURI* aURI,

bool* aHeaderVal) {

if (!(mozilla::AndroidBridge::Bridge())) {

return false;

}

if (!aURI->SchemeIs("https")) {

return false;

}

// We need to improve below logic for matching google domains

// See Bug 1894642

// Is URI same as google ^https://www\\.google\\..+

nsAutoCString host;

aURI->GetHost(host);

LOG(("nsIOService::ShouldAddAdditionalSearchHeaders() checking host %s\n",

PromiseFlatCString(host).get()));

std::regex pattern("^www\\.google\\..+");

if (std::regex_match(host.get(), pattern)) {

LOG(("Google domain detected for host %s\n",

PromiseFlatCString(host).get()));

static bool ramAboveThreshold =

java::GeckoAppShell::IsDeviceRamThresholdOkay();

*aHeaderVal = ramAboveThreshold;

return true;

}

return false;

}

#endif

// static

void nsIOService::OnTLSPrefChange(const char* aPref, void* aSelf) {

MOZ_ASSERT(IsSocketProcessChild());

if (!EnsureNSSInitializedChromeOrContent()) {

LOG(("NSS not initialized."));

return;

}

nsAutoCString pref(aPref);

// The preferences listed in gCallbackSecurityPrefs need to be in sync with

// the code in HandleTLSPrefChange().

if (HandleTLSPrefChange(pref)) {

LOG(("HandleTLSPrefChange done"));

}

nsresult nsIOService::InitializeCaptivePortalService() {

if (XRE_GetProcessType() != GeckoProcessType_Default) {

// We only initalize a captive portal service in the main process

return NS_OK;

}

mCaptivePortalService = mozilla::components::CaptivePortal::Service();

if (mCaptivePortalService) {

static_cast<CaptivePortalService*>(mCaptivePortalService.get())

->Initialize();

}

// Instantiate and initialize the service

RefPtr<NetworkConnectivityService> ncs =

NetworkConnectivityService::GetSingleton();

return NS_OK;

}

nsresult nsIOService::InitializeSocketTransportService() {

nsresult rv = NS_OK;

if (AppShutdown::IsInOrBeyond(ShutdownPhase::AppShutdownConfirmed)) {

LOG(

("nsIOService aborting InitializeSocketTransportService because of app "

"shutdown"));

return NS_ERROR_ILLEGAL_DURING_SHUTDOWN;

}

if (!mSocketTransportService) {

mSocketTransportService =

mozilla::components::SocketTransport::Service(&rv);

if (NS_FAILED(rv)) {

NS_WARNING("failed to get socket transport service");

}

if (mSocketTransportService) {

rv = mSocketTransportService->Init();

NS_ASSERTION(NS_SUCCEEDED(rv), "socket transport service init failed");

mSocketTransportService->SetOffline(false);

}

return rv;

}

nsresult nsIOService::InitializeNetworkLinkService() {

nsresult rv = NS_OK;

if (mNetworkLinkServiceInitialized) return rv;

if (!NS_IsMainThread()) {

NS_WARNING("Network link service should be created on main thread");

return NS_ERROR_FAILURE;

}

// go into managed mode if we can, and chrome process

if (!XRE_IsParentProcess()) {

return NS_ERROR_NOT_AVAILABLE;

}

mNetworkLinkService = do_GetService(NS_NETWORK_LINK_SERVICE_CONTRACTID, &rv);

if (mNetworkLinkService) {

mNetworkLinkServiceInitialized = true;

}

// After initializing the networkLinkService, query the connectivity state

OnNetworkLinkEvent(NS_NETWORK_LINK_DATA_UNKNOWN);

return rv;

}

nsresult nsIOService::InitializeProtocolProxyService() {

nsresult rv = NS_OK;

if (XRE_IsParentProcess()) {

// for early-initialization

Unused << mozilla::components::ProtocolProxy::Service(&rv);

}

return rv;

}

already_AddRefed<nsIOService> nsIOService::GetInstance() {

if (!gIOService) {

RefPtr<nsIOService> ios = new nsIOService();

if (NS_SUCCEEDED(ios->Init())) {

MOZ_ASSERT(gIOService == ios.get());

return ios.forget();

}

return do_AddRef(gIOService);

}

class SocketProcessListenerProxy : public SocketProcessHost::Listener {

public:

SocketProcessListenerProxy() = default;

void OnProcessLaunchComplete(SocketProcessHost* aHost, bool aSucceeded) {

if (!gIOService) {

return;

}

gIOService->OnProcessLaunchComplete(aHost, aSucceeded);

}

void OnProcessUnexpectedShutdown(SocketProcessHost* aHost) {

if (!gIOService) {

return;

}

gIOService->OnProcessUnexpectedShutdown(aHost);

}

};

// static

bool nsIOService::TooManySocketProcessCrash() {

return sSocketProcessCrashedCount >=

StaticPrefs::network_max_socket_process_failed_count();

}

// static

void nsIOService::IncreaseSocketProcessCrashCount() {

MOZ_ASSERT(IsNeckoChild());

sSocketProcessCrashedCount++;

}

nsresult nsIOService::LaunchSocketProcess() {

MOZ_ASSERT(NS_IsMainThread());

if (XRE_GetProcessType() != GeckoProcessType_Default) {

return NS_OK;

}

// We shouldn't launch socket prcess when shutdown begins.

if (AppShutdown::IsInOrBeyond(ShutdownPhase::AppShutdownConfirmed)) {

return NS_OK;

}

if (mSocketProcess) {

return NS_OK;

}

if (PR_GetEnv("MOZ_DISABLE_SOCKET_PROCESS")) {

LOG(("nsIOService skipping LaunchSocketProcess because of the env"));

return NS_OK;

}

if (!StaticPrefs::network_process_enabled()) {

LOG(("nsIOService skipping LaunchSocketProcess because of the pref"));

return NS_OK;

}

Preferences::RegisterPrefixCallbacks(

nsIOService::NotifySocketProcessPrefsChanged,

gCallbackPrefsForSocketProcess, this);

// The subprocess is launched asynchronously, so we wait for a callback to

// acquire the IPDL actor.

mSocketProcess = new SocketProcessHost(new SocketProcessListenerProxy());

LOG(("nsIOService::LaunchSocketProcess"));

if (!mSocketProcess->Launch()) {

NS_WARNING("Failed to launch socket process!!");

DestroySocketProcess();

return NS_ERROR_FAILURE;

}

return NS_OK;

}

void nsIOService::DestroySocketProcess() {

LOG(("nsIOService::DestroySocketProcess"));

MOZ_ASSERT(NS_IsMainThread());

if (XRE_GetProcessType() != GeckoProcessType_Default || !mSocketProcess) {

return;

}

Preferences::UnregisterPrefixCallbacks(

nsIOService::NotifySocketProcessPrefsChanged,

gCallbackPrefsForSocketProcess, this);

mSocketProcess->Shutdown();

mSocketProcess = nullptr;

}

bool nsIOService::SocketProcessReady() {

return mSocketProcess && mSocketProcess->IsConnected();

}

static bool sUseSocketProcess = false;

static bool sUseSocketProcessChecked = false;

// static

bool nsIOService::UseSocketProcess(bool aCheckAgain) {

if (sUseSocketProcessChecked && !aCheckAgain) {

return sUseSocketProcess;

}

sUseSocketProcessChecked = true;

sUseSocketProcess = false;

if (PR_GetEnv("MOZ_DISABLE_SOCKET_PROCESS")) {

return sUseSocketProcess;

}

if (TooManySocketProcessCrash()) {

LOG(("TooManySocketProcessCrash"));

return sUseSocketProcess;

}

if (PR_GetEnv("MOZ_FORCE_USE_SOCKET_PROCESS")) {

sUseSocketProcess = true;

return sUseSocketProcess;

}

if (StaticPrefs::network_process_enabled()) {

sUseSocketProcess =

StaticPrefs::network_http_network_access_on_socket_process_enabled();

}

return sUseSocketProcess;

}

// static

void nsIOService::NotifySocketProcessPrefsChanged(const char* aName,

void* aSelf) {

static_cast<nsIOService*>(aSelf)->NotifySocketProcessPrefsChanged(aName);

}

void nsIOService::NotifySocketProcessPrefsChanged(const char* aName) {

MOZ_ASSERT(NS_IsMainThread());

if (!XRE_IsParentProcess()) {

return;

}

if (!StaticPrefs::network_process_enabled()) {

return;

}

dom::Pref pref(nsCString(aName), /* isLocked */ false,

/* isSanitized */ false, Nothing(), Nothing());

Preferences::GetPreference(&pref, GeckoProcessType_Socket,

/* remoteType */ ""_ns);

auto sendPrefUpdate = [pref]() {

Unused << gIOService->mSocketProcess->GetActor()->SendPreferenceUpdate(

pref);

};

CallOrWaitForSocketProcess(sendPrefUpdate);

}

void nsIOService::OnProcessLaunchComplete(SocketProcessHost* aHost,

bool aSucceeded) {

MOZ_ASSERT(NS_IsMainThread());

LOG(("nsIOService::OnProcessLaunchComplete aSucceeded=%d\n", aSucceeded));

mSocketProcessLaunchComplete = aSucceeded;

if (mShutdown || !SocketProcessReady() || !aSucceeded) {

mPendingEvents.Clear();

return;

}

if (!mPendingEvents.IsEmpty()) {

nsTArray<std::function<void()>> pendingEvents = std::move(mPendingEvents);

for (auto& func : pendingEvents) {

func();

}

void nsIOService::CallOrWaitForSocketProcess(

const std::function<void()>& aFunc) {

MOZ_ASSERT(NS_IsMainThread());

if (IsSocketProcessLaunchComplete() && SocketProcessReady()) {

aFunc();

} else {

mPendingEvents.AppendElement(aFunc); // infallible

LaunchSocketProcess();

}

int32_t nsIOService::SocketProcessPid() {

if (!mSocketProcess) {

return 0;

}

if (SocketProcessParent* actor = mSocketProcess->GetActor()) {

return (int32_t)actor->OtherPid();

}

return 0;

}

bool nsIOService::IsSocketProcessLaunchComplete() {

MOZ_ASSERT(NS_IsMainThread());

return mSocketProcessLaunchComplete;

}

void nsIOService::OnProcessUnexpectedShutdown(SocketProcessHost* aHost) {

MOZ_ASSERT(NS_IsMainThread());

LOG(("nsIOService::OnProcessUnexpectedShutdown\n"));

DestroySocketProcess();

mPendingEvents.Clear();

// Nothing to do if socket process was not used before.

if (!UseSocketProcess()) {

return;

}

sSocketProcessCrashedCount++;

if (TooManySocketProcessCrash()) {

sUseSocketProcessChecked = false;

DNSServiceWrapper::SwitchToBackupDNSService();

}

nsCOMPtr<nsIObserverService> observerService = services::GetObserverService();

if (observerService) {

(void)observerService->NotifyObservers(

nullptr, "network:socket-process-crashed", nullptr);

}

// UseSocketProcess() could return false if we have too many crashes, so we

// should call it again.

if (UseSocketProcess()) {

MOZ_ALWAYS_SUCCEEDS(NS_DispatchToMainThread(

NewRunnableMethod("nsIOService::LaunchSocketProcess", this,

&nsIOService::LaunchSocketProcess)));

}

RefPtr<MemoryReportingProcess> nsIOService::GetSocketProcessMemoryReporter() {

// Check the prefs here again, since we don't want to create

// SocketProcessMemoryReporter for some tests.

if (!StaticPrefs::network_process_enabled() || !SocketProcessReady()) {

return nullptr;

}

return new SocketProcessMemoryReporter();

}

NS_IMETHODIMP

nsIOService::SocketProcessTelemetryPing() {

CallOrWaitForSocketProcess([]() {

Unused << gIOService->mSocketProcess->GetActor()

->SendSocketProcessTelemetryPing();

});

return NS_OK;

}

NS_IMPL_ISUPPORTS(nsIOService, nsIIOService, nsINetUtil, nsISpeculativeConnect,

nsIObserver, nsIIOServiceInternal, nsISupportsWeakReference,

nsIObserverService)

////////////////////////////////////////////////////////////////////////////////

nsresult nsIOService::RecheckCaptivePortal() {

MOZ_ASSERT(NS_IsMainThread(), "Must be called on the main thread");

if (!mCaptivePortalService) {

return NS_OK;

}

nsCOMPtr<nsIRunnable> task = NewRunnableMethod(

"nsIOService::RecheckCaptivePortal", mCaptivePortalService,

&nsICaptivePortalService::RecheckCaptivePortal);

return NS_DispatchToMainThread(task);

}

nsresult nsIOService::RecheckCaptivePortalIfLocalRedirect(nsIChannel* newChan) {

nsresult rv;

if (!mCaptivePortalService) {

return NS_OK;

}

nsCOMPtr<nsIURI> uri;

rv = newChan->GetURI(getter_AddRefs(uri));

if (NS_FAILED(rv)) {

return rv;

}

nsCString host;

rv = uri->GetHost(host);

if (NS_FAILED(rv)) {

return rv;

}

NetAddr addr;

// If the redirect wasn't to an IP literal, so there's probably no need

// to trigger the captive portal detection right now. It can wait.

if (NS_SUCCEEDED(addr.InitFromString(host)) && addr.IsIPAddrLocal()) {

RecheckCaptivePortal();

}

return NS_OK;

}

nsresult nsIOService::AsyncOnChannelRedirect(

nsIChannel* oldChan, nsIChannel* newChan, uint32_t flags,

nsAsyncRedirectVerifyHelper* helper) {

// If a redirect to a local network address occurs, then chances are we

// are in a captive portal, so we trigger a recheck.

RecheckCaptivePortalIfLocalRedirect(newChan);

// This is silly. I wish there was a simpler way to get at the global

// reference of the contentSecurityManager. But it lives in the XPCOM

// service registry.

nsCOMPtr<nsIChannelEventSink> sink;

sink = mozilla::components::ContentSecurityManager::Service();

if (sink) {

nsresult rv =

helper->DelegateOnChannelRedirect(sink, oldChan, newChan, flags);

if (NS_FAILED(rv)) return rv;

}

// Finally, our category

nsCOMArray<nsIChannelEventSink> entries;

mChannelEventSinks.GetEntries(entries);

int32_t len = entries.Count();

for (int32_t i = 0; i < len; ++i) {

nsresult rv =

helper->DelegateOnChannelRedirect(entries[i], oldChan, newChan, flags);

if (NS_FAILED(rv)) return rv;

}

nsCOMPtr<nsIHttpChannel> httpChan(do_QueryInterface(oldChan));

// Collect the redirection from HTTP(S) only.

if (httpChan) {

MOZ_ASSERT(NS_IsMainThread());

nsCOMPtr<nsIURI> newURI;

newChan->GetURI(getter_AddRefs(newURI));

MOZ_ASSERT(newURI);

nsAutoCString scheme;

newURI->GetScheme(scheme);

MOZ_ASSERT(!scheme.IsEmpty());

if (oldChan->IsDocument()) {

mozilla::glean::networking::http_redirect_to_scheme_top_level.Get(scheme)

.Add(1);

} else {

mozilla::glean::networking::http_redirect_to_scheme_subresource

.Get(scheme)

.Add(1);

}

return NS_OK;

}

bool nsIOService::UsesExternalProtocolHandler(const nsACString& aScheme) {

if (aScheme == "file"_ns || aScheme == "chrome"_ns ||

aScheme == "resource"_ns || aScheme == "moz-src"_ns) {

// Don't allow file:, chrome: or resource: URIs to be handled with

// nsExternalProtocolHandler, since internally we rely on being able to

// use and read from these URIs.

return false;

}

if (aScheme == "place"_ns || aScheme == "fake-favicon-uri"_ns ||

aScheme == "favicon"_ns || aScheme == "moz-nullprincipal"_ns) {

// Force place: fake-favicon-uri: favicon: and moz-nullprincipal: URIs to be

// handled with nsExternalProtocolHandler, and not with a dynamically

// registered handler.

return true;

}

// If prefs configure the URI to be handled externally, do so.

for (const auto& scheme : mForceExternalSchemes) {

if (aScheme == scheme) {

return true;

}

return false;

}

ProtocolHandlerInfo nsIOService::LookupProtocolHandler(

const nsACString& aScheme) {

// Look-ups are ASCII-case-insensitive, so lower-case the string before

// continuing.

nsAutoCString scheme(aScheme);

ToLowerCase(scheme);

// NOTE: If we could get rid of mForceExternalSchemes (or prevent them from

// disabling static protocols), we could avoid locking mLock until we need to

// check `mRuntimeProtocolHandlers.

AutoReadLock lock(mLock);

if (!UsesExternalProtocolHandler(scheme)) {

// Try the static protocol handler first - they cannot be overridden by

// dynamic protocols.

if (const xpcom::StaticProtocolHandler* handler =

xpcom::StaticProtocolHandler::Lookup(scheme)) {

return ProtocolHandlerInfo(*handler);

}

if (auto handler = mRuntimeProtocolHandlers.Lookup(scheme)) {

return ProtocolHandlerInfo(handler.Data());

}

return ProtocolHandlerInfo(xpcom::StaticProtocolHandler::Default());

}

NS_IMETHODIMP

nsIOService::GetProtocolHandler(const char* scheme,

nsIProtocolHandler** result) {

AssertIsOnMainThread();

NS_ENSURE_ARG_POINTER(scheme);

*result = LookupProtocolHandler(nsDependentCString(scheme)).Handler().take();

return *result ? NS_OK : NS_ERROR_UNKNOWN_PROTOCOL;

}

NS_IMETHODIMP

nsIOService::ExtractScheme(const nsACString& inURI, nsACString& scheme) {

return net_ExtractURLScheme(inURI, scheme);

}

NS_IMETHODIMP

nsIOService::HostnameIsLocalIPAddress(nsIURI* aURI, bool* aResult) {

NS_ENSURE_ARG_POINTER(aURI);

nsCOMPtr<nsIURI> innerURI = NS_GetInnermostURI(aURI);

NS_ENSURE_ARG_POINTER(innerURI);

nsAutoCString host;

nsresult rv = innerURI->GetAsciiHost(host);

if (NS_FAILED(rv)) {

return rv;

}

*aResult = false;

NetAddr addr;

if (NS_SUCCEEDED(addr.InitFromString(host)) && addr.IsIPAddrLocal()) {

*aResult = true;

}

return NS_OK;

}

NS_IMETHODIMP

nsIOService::HostnameIsIPAddressAny(nsIURI* aURI, bool* aResult) {

NS_ENSURE_ARG_POINTER(aURI);

nsCOMPtr<nsIURI> innerURI = NS_GetInnermostURI(aURI);

NS_ENSURE_ARG_POINTER(innerURI);

View remainder of file in raw view

gecko-dev/netwerk/base/nsIOService.cpp at master · mozilla/gecko-dev · GitHub

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