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fune/netwerk/protocol/http/nsHttpHandler.cpp
Iulian Moraru 7af8c65261 Backed out 2 changesets (bug 1711622) for causing reftest failures on accept-image-catchall.html. CLOSED TREE 
Backed out changeset 877d9c37605a (bug 1711622)
Backed out changeset c315e89b6e4b (bug 1711622)
2024-05-20 16:59:04 +03:00

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=4 sw=2 sts=2 et cin: */
/* 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/. */
// HttpLog.h should generally be included first
#include "HttpLog.h"
#include "prsystem.h"
#include "AltServiceChild.h"
#include "nsCORSListenerProxy.h"
#include "nsError.h"
#include "nsHttp.h"
#include "nsHttpHandler.h"
#include "nsHttpChannel.h"
#include "nsHTTPCompressConv.h"
#include "nsHttpAuthCache.h"
#include "nsStandardURL.h"
#include "LoadContextInfo.h"
#include "nsCategoryManagerUtils.h"
#include "nsDirectoryServiceDefs.h"
#include "nsSocketProviderService.h"
#include "nsISocketProvider.h"
#include "nsPrintfCString.h"
#include "nsCOMPtr.h"
#include "nsNetCID.h"
#include "mozilla/AppShutdown.h"
#include "mozilla/ClearOnShutdown.h"
#include "mozilla/Components.h"
#include "mozilla/Printf.h"
#include "mozilla/Sprintf.h"
#include "mozilla/StaticPrefs_network.h"
#include "mozilla/StaticPrefs_privacy.h"
#include "mozilla/StoragePrincipalHelper.h"
#include "nsAsyncRedirectVerifyHelper.h"
#include "nsSocketTransportService2.h"
#include "nsAlgorithm.h"
#include "ASpdySession.h"
#include "EventTokenBucket.h"
#include "Tickler.h"
#include "nsIXULAppInfo.h"
#include "nsICookieService.h"
#include "nsIObserverService.h"
#include "nsISiteSecurityService.h"
#include "nsIStreamConverterService.h"
#include "nsCRT.h"
#include "nsIParentalControlsService.h"
#include "nsPIDOMWindow.h"
#include "nsIHttpActivityObserver.h"
#include "nsHttpChannelAuthProvider.h"
#include "nsINetworkLinkService.h"
#include "nsNetUtil.h"
#include "nsServiceManagerUtils.h"
#include "nsComponentManagerUtils.h"
#include "nsSocketTransportService2.h"
#include "nsIOService.h"
#include "nsISupportsPrimitives.h"
#include "nsIXULRuntime.h"
#include "nsCharSeparatedTokenizer.h"
#include "nsRFPService.h"
#include "mozilla/net/rust_helper.h"
#include "mozilla/net/HttpConnectionMgrParent.h"
#include "mozilla/net/NeckoChild.h"
#include "mozilla/net/NeckoParent.h"
#include "mozilla/net/RequestContextService.h"
#include "mozilla/net/SocketProcessParent.h"
#include "mozilla/net/SocketProcessChild.h"
#include "mozilla/ipc/URIUtils.h"
#include "mozilla/Telemetry.h"
#include "mozilla/Unused.h"
#include "mozilla/AntiTrackingRedirectHeuristic.h"
#include "mozilla/DynamicFpiRedirectHeuristic.h"
#include "mozilla/BasePrincipal.h"
#include "mozilla/LazyIdleThread.h"
#include "mozilla/StaticPrefs_image.h"
#include "mozilla/SyncRunnable.h"
#include "mozilla/dom/ContentParent.h"
#include "mozilla/dom/Navigator.h"
#include "mozilla/dom/Promise.h"
#include "mozilla/dom/network/Connection.h"
#include "nsNSSComponent.h"
#include "TRRServiceChannel.h"
#include <bitset>
#if defined(XP_UNIX)
# include <sys/utsname.h>
#endif
#if defined(MOZ_WIDGET_GTK)
# include "mozilla/WidgetUtilsGtk.h"
#endif
#if defined(XP_WIN)
# include <windows.h>
# include "mozilla/WindowsVersion.h"
#endif
#if defined(XP_MACOSX)
# include <CoreServices/CoreServices.h>
#endif
//-----------------------------------------------------------------------------
#include "mozilla/net/HttpChannelChild.h"
#define UA_PREF_PREFIX "general.useragent."
#ifdef XP_WIN
# define UA_SPARE_PLATFORM
#endif
#define HTTP_PREF_PREFIX "network.http."
#define INTL_ACCEPT_LANGUAGES "intl.accept_languages"
#define BROWSER_PREF_PREFIX "browser.cache."
#define H2MANDATORY_SUITE "security.ssl3.ecdhe_rsa_aes_128_gcm_sha256"
#define SAFE_HINT_HEADER_VALUE "safeHint.enabled"
#define SECURITY_PREFIX "security."
#define DOM_SECURITY_PREFIX "dom.security"
#define ACCEPT_HEADER_STYLE "text/css,*/*;q=0.1"
#define ACCEPT_HEADER_ALL "*/*"
#define UA_PREF(_pref) UA_PREF_PREFIX _pref
#define HTTP_PREF(_pref) HTTP_PREF_PREFIX _pref
#define BROWSER_PREF(_pref) BROWSER_PREF_PREFIX _pref
#define NS_HTTP_PROTOCOL_FLAGS \
(URI_STD | ALLOWS_PROXY | ALLOWS_PROXY_HTTP | URI_LOADABLE_BY_ANYONE)
//-----------------------------------------------------------------------------
using mozilla::dom::Promise;
namespace mozilla::net {
LazyLogModule gHttpLog("nsHttp");
#ifdef ANDROID
static nsCString GetDeviceModelId() {
// Assumed to be running on the main thread
// We need the device property in either case
nsAutoCString deviceModelId;
nsCOMPtr<nsIPropertyBag2> infoService =
do_GetService("@mozilla.org/system-info;1");
MOZ_ASSERT(infoService, "Could not find a system info service");
nsAutoString androidDevice;
nsresult rv = infoService->GetPropertyAsAString(u"device"_ns, androidDevice);
if (NS_SUCCEEDED(rv)) {
deviceModelId = NS_LossyConvertUTF16toASCII(androidDevice);
}
nsAutoCString deviceString;
rv = Preferences::GetCString(UA_PREF("device_string"), deviceString);
if (NS_SUCCEEDED(rv)) {
deviceString.Trim(" ", true, true);
deviceString.ReplaceSubstring("%DEVICEID%"_ns, deviceModelId);
return std::move(deviceString);
}
return std::move(deviceModelId);
}
#endif
#ifdef XP_UNIX
static bool IsRunningUnderUbuntuSnap() {
# if defined(MOZ_WIDGET_GTK)
if (!widget::IsRunningUnderSnap()) {
return false;
}
char version[100];
if (PR_GetSystemInfo(PR_SI_RELEASE_BUILD, version, sizeof(version)) ==
PR_SUCCESS) {
if (strstr(version, "Ubuntu")) {
return true;
}
}
# endif
return false;
}
#endif
//-----------------------------------------------------------------------------
// nsHttpHandler <public>
//-----------------------------------------------------------------------------
StaticRefPtr<nsHttpHandler> gHttpHandler;
/* static */
already_AddRefed<nsHttpHandler> nsHttpHandler::GetInstance() {
if (!gHttpHandler) {
gHttpHandler = new nsHttpHandler();
DebugOnly<nsresult> rv = gHttpHandler->Init();
MOZ_ASSERT(NS_SUCCEEDED(rv));
// There is code that may be executed during the final cycle collection
// shutdown and still referencing gHttpHandler.
ClearOnShutdown(&gHttpHandler, ShutdownPhase::CCPostLastCycleCollection);
}
RefPtr<nsHttpHandler> httpHandler = gHttpHandler;
return httpHandler.forget();
}
/// Derive the HTTP Accept header for image requests based on the enabled prefs
/// for non-universal image types. This may be overridden in its entirety by
/// the image.http.accept pref.
static nsCString ImageAcceptHeader() {
nsCString mimeTypes;
if (mozilla::StaticPrefs::image_avif_enabled()) {
mimeTypes.Append("image/avif,");
}
if (mozilla::StaticPrefs::image_jxl_enabled()) {
mimeTypes.Append("image/jxl,");
}
mimeTypes.Append("image/webp,*/*");
return mimeTypes;
}
static nsCString DocumentAcceptHeader(const nsCString& aImageAcceptHeader) {
nsPrintfCString mimeTypes(
"text/html,application/xhtml+xml,application/xml;q=0.9,%s;q=0.8",
aImageAcceptHeader.get());
return std::move(mimeTypes);
}
nsHttpHandler::nsHttpHandler()
: mIdleTimeout(PR_SecondsToInterval(10)),
mSpdyTimeout(
PR_SecondsToInterval(StaticPrefs::network_http_http2_timeout())),
mResponseTimeout(PR_SecondsToInterval(300)),
mImageAcceptHeader(ImageAcceptHeader()),
mDocumentAcceptHeader(DocumentAcceptHeader(ImageAcceptHeader())),
mLastUniqueID(NowInSeconds()),
mDebugObservations(false),
mEnableAltSvc(false),
mEnableAltSvcOE(false),
mSpdyPingThreshold(PR_SecondsToInterval(
StaticPrefs::network_http_http2_ping_threshold())),
mSpdyPingTimeout(PR_SecondsToInterval(
StaticPrefs::network_http_http2_ping_timeout())) {
LOG(("Creating nsHttpHandler [this=%p].\n", this));
mUserAgentOverride.SetIsVoid(true);
MOZ_ASSERT(!gHttpHandler, "HTTP handler already created!");
nsCOMPtr<nsIXULRuntime> runtime = do_GetService("@mozilla.org/xre/runtime;1");
if (runtime) {
runtime->GetProcessID(&mProcessId);
}
}
nsHttpHandler::~nsHttpHandler() {
LOG(("Deleting nsHttpHandler [this=%p]\n", this));
// make sure the connection manager is shutdown
if (mConnMgr) {
nsresult rv = mConnMgr->Shutdown();
if (NS_FAILED(rv)) {
LOG(
("nsHttpHandler [this=%p] "
"failed to shutdown connection manager (%08x)\n",
this, static_cast<uint32_t>(rv)));
}
mConnMgr = nullptr;
}
// Note: don't call NeckoChild::DestroyNeckoChild() here, as it's too late
// and it'll segfault. NeckoChild will get cleaned up by process exit.
nsHttp::DestroyAtomTable();
}
static const char* gCallbackPrefs[] = {
HTTP_PREF_PREFIX,
UA_PREF_PREFIX,
INTL_ACCEPT_LANGUAGES,
BROWSER_PREF("disk_cache_ssl"),
H2MANDATORY_SUITE,
HTTP_PREF("tcp_keepalive.short_lived_connections"),
HTTP_PREF("tcp_keepalive.long_lived_connections"),
SAFE_HINT_HEADER_VALUE,
SECURITY_PREFIX,
DOM_SECURITY_PREFIX,
"image.http.accept",
"image.avif.enabled",
"image.jxl.enabled",
nullptr,
};
nsresult nsHttpHandler::Init() {
nsresult rv;
LOG(("nsHttpHandler::Init\n"));
MOZ_ASSERT(NS_IsMainThread());
// We should not create nsHttpHandler during shutdown, but we have some
// xpcshell tests doing this.
if (MOZ_UNLIKELY(AppShutdown::IsInOrBeyond(ShutdownPhase::AppShutdown) &&
!PR_GetEnv("XPCSHELL_TEST_PROFILE_DIR"))) {
MOZ_DIAGNOSTIC_ASSERT(false, "Try to init HttpHandler after shutdown");
return NS_ERROR_ILLEGAL_DURING_SHUTDOWN;
}
rv = nsHttp::CreateAtomTable();
if (NS_FAILED(rv)) return rv;
nsCOMPtr<nsIIOService> service = do_GetService(NS_IOSERVICE_CONTRACTID, &rv);
if (NS_FAILED(rv)) {
NS_WARNING("unable to continue without io service");
return rv;
}
mIOService = new nsMainThreadPtrHolder<nsIIOService>(
"nsHttpHandler::mIOService", service);
gIOService->LaunchSocketProcess();
if (IsNeckoChild()) NeckoChild::InitNeckoChild();
InitUserAgentComponents();
// This perference is only used in parent process.
if (!IsNeckoChild()) {
mActiveTabPriority =
Preferences::GetBool(HTTP_PREF("active_tab_priority"), true);
std::bitset<3> usageOfHTTPSRRPrefs;
usageOfHTTPSRRPrefs[0] = StaticPrefs::network_dns_upgrade_with_https_rr();
usageOfHTTPSRRPrefs[1] = StaticPrefs::network_dns_use_https_rr_as_altsvc();
usageOfHTTPSRRPrefs[2] = StaticPrefs::network_dns_echconfig_enabled();
Telemetry::ScalarSet(Telemetry::ScalarID::NETWORKING_HTTPS_RR_PREFS_USAGE,
static_cast<uint32_t>(usageOfHTTPSRRPrefs.to_ulong()));
mActivityDistributor = components::HttpActivityDistributor::Service();
auto initQLogDir = [&]() {
if (!StaticPrefs::network_http_http3_enable_qlog()) {
return EmptyCString();
}
nsCOMPtr<nsIFile> qlogDir;
nsresult rv =
NS_GetSpecialDirectory(NS_OS_TEMP_DIR, getter_AddRefs(qlogDir));
if (NS_WARN_IF(NS_FAILED(rv))) {
return EmptyCString();
}
nsAutoCString dirName("qlog_");
dirName.AppendInt(mProcessId);
rv = qlogDir->AppendNative(dirName);
if (NS_WARN_IF(NS_FAILED(rv))) {
return EmptyCString();
}
return qlogDir->HumanReadablePath();
};
mHttp3QlogDir = initQLogDir();
}
// monitor some preference changes
Preferences::RegisterPrefixCallbacks(nsHttpHandler::PrefsChanged,
gCallbackPrefs, this);
PrefsChanged(nullptr);
Telemetry::ScalarSet(Telemetry::ScalarID::NETWORKING_HTTP3_ENABLED,
StaticPrefs::network_http_http3_enable());
mCompatFirefox.AssignLiteral("Firefox/" MOZILLA_UAVERSION);
nsCOMPtr<nsIXULAppInfo> appInfo =
do_GetService("@mozilla.org/xre/app-info;1");
mAppName.AssignLiteral(MOZ_APP_UA_NAME);
if (mAppName.Length() == 0 && appInfo) {
// Try to get the UA name from appInfo, falling back to the name
appInfo->GetUAName(mAppName);
if (mAppName.Length() == 0) {
appInfo->GetName(mAppName);
}
appInfo->GetVersion(mAppVersion);
mAppName.StripChars(R"( ()<>@,;:\"/[]?={})");
} else {
mAppVersion.AssignLiteral(MOZ_APP_UA_VERSION);
}
mMisc.AssignLiteral("rv:" MOZILLA_UAVERSION);
// Generate the spoofed User Agent for fingerprinting resistance.
nsRFPService::GetSpoofedUserAgent(mSpoofedUserAgent, true);
mSessionStartTime = NowInSeconds();
mHandlerActive = true;
rv = InitConnectionMgr();
if (NS_FAILED(rv)) return rv;
mAltSvcCache = MakeUnique<AltSvcCache>();
mRequestContextService = RequestContextService::GetOrCreate();
#if defined(ANDROID)
mProductSub.AssignLiteral(MOZILLA_UAVERSION);
#else
mProductSub.AssignLiteral(LEGACY_UA_GECKO_TRAIL);
#endif
#if DEBUG
// dump user agent prefs
LOG(("> legacy-app-name = %s\n", mLegacyAppName.get()));
LOG(("> legacy-app-version = %s\n", mLegacyAppVersion.get()));
LOG(("> platform = %s\n", mPlatform.get()));
LOG(("> oscpu = %s\n", mOscpu.get()));
LOG(("> misc = %s\n", mMisc.get()));
LOG(("> product = %s\n", mProduct.get()));
LOG(("> product-sub = %s\n", mProductSub.get()));
LOG(("> app-name = %s\n", mAppName.get()));
LOG(("> app-version = %s\n", mAppVersion.get()));
LOG(("> compat-firefox = %s\n", mCompatFirefox.get()));
LOG(("> user-agent = %s\n", UserAgent(false).get()));
#endif
// Startup the http category
// Bring alive the objects in the http-protocol-startup category
NS_CreateServicesFromCategory(
NS_HTTP_STARTUP_CATEGORY,
static_cast<nsISupports*>(static_cast<void*>(this)),
NS_HTTP_STARTUP_TOPIC);
nsCOMPtr<nsIObserverService> obsService =
static_cast<nsIObserverService*>(gIOService);
if (obsService) {
// register the handler object as a weak callback as we don't need to worry
// about shutdown ordering.
obsService->AddObserver(this, "profile-change-net-teardown", true);
obsService->AddObserver(this, "profile-change-net-restore", true);
obsService->AddObserver(this, NS_XPCOM_SHUTDOWN_OBSERVER_ID, true);
obsService->AddObserver(this, "net:clear-active-logins", true);
obsService->AddObserver(this, "net:prune-dead-connections", true);
// Sent by the TorButton add-on in the Tor Browser
obsService->AddObserver(this, "net:prune-all-connections", true);
obsService->AddObserver(this, "net:cancel-all-connections", true);
obsService->AddObserver(this, "last-pb-context-exited", true);
obsService->AddObserver(this, "browser:purge-session-history", true);
obsService->AddObserver(this, NS_NETWORK_LINK_TOPIC, true);
obsService->AddObserver(this, "application-background", true);
obsService->AddObserver(this, "psm:user-certificate-added", true);
obsService->AddObserver(this, "psm:user-certificate-deleted", true);
obsService->AddObserver(this, "intl:app-locales-changed", true);
obsService->AddObserver(this, "browser-delayed-startup-finished", true);
obsService->AddObserver(this, "network:captive-portal-connectivity", true);
obsService->AddObserver(this, "network:reset-http3-excluded-list", true);
obsService->AddObserver(this, "network:socket-process-crashed", true);
if (!IsNeckoChild()) {
obsService->AddObserver(this, "net:current-browser-id", true);
}
// disabled as its a nop right now
// obsService->AddObserver(this, "net:failed-to-process-uri-content", true);
}
MakeNewRequestTokenBucket();
mWifiTickler = new Tickler();
if (NS_FAILED(mWifiTickler->Init())) mWifiTickler = nullptr;
nsCOMPtr<nsIParentalControlsService> pc =
do_CreateInstance("@mozilla.org/parental-controls-service;1");
if (pc) {
pc->GetParentalControlsEnabled(&mParentalControlEnabled);
}
return NS_OK;
}
const nsCString& nsHttpHandler::Http3QlogDir() {
if (StaticPrefs::network_http_http3_enable_qlog()) {
return mHttp3QlogDir;
}
return EmptyCString();
}
void nsHttpHandler::MakeNewRequestTokenBucket() {
LOG(("nsHttpHandler::MakeNewRequestTokenBucket this=%p child=%d\n", this,
IsNeckoChild()));
if (!mConnMgr || IsNeckoChild()) {
return;
}
RefPtr<EventTokenBucket> tokenBucket =
new EventTokenBucket(RequestTokenBucketHz(), RequestTokenBucketBurst());
// NOTE The thread or socket may be gone already.
nsresult rv = mConnMgr->UpdateRequestTokenBucket(tokenBucket);
if (NS_FAILED(rv)) {
LOG((" failed to update request token bucket\n"));
}
}
nsresult nsHttpHandler::InitConnectionMgr() {
// Init ConnectionManager only on parent!
if (IsNeckoChild()) {
return NS_OK;
}
if (mConnMgr) {
return NS_OK;
}
if (nsIOService::UseSocketProcess(true) && XRE_IsParentProcess()) {
mConnMgr = new HttpConnectionMgrParent();
RefPtr<nsHttpHandler> self = this;
auto task = [self]() {
RefPtr<HttpConnectionMgrParent> parent =
self->mConnMgr->AsHttpConnectionMgrParent();
Unused << SocketProcessParent::GetSingleton()
->SendPHttpConnectionMgrConstructor(
parent,
HttpHandlerInitArgs(
self->mLegacyAppName, self->mLegacyAppVersion,
self->mPlatform, self->mOscpu, self->mMisc,
self->mProduct, self->mProductSub, self->mAppName,
self->mAppVersion, self->mCompatFirefox,
self->mCompatDevice, self->mDeviceModelId));
};
gIOService->CallOrWaitForSocketProcess(std::move(task));
} else {
MOZ_ASSERT(XRE_IsSocketProcess() || !nsIOService::UseSocketProcess());
mConnMgr = new nsHttpConnectionMgr();
}
return mConnMgr->Init(
mMaxUrgentExcessiveConns, mMaxConnections,
mMaxPersistentConnectionsPerServer, mMaxPersistentConnectionsPerProxy,
mMaxRequestDelay, mThrottleEnabled, mThrottleVersion, mThrottleSuspendFor,
mThrottleResumeFor, mThrottleReadLimit, mThrottleReadInterval,
mThrottleHoldTime, mThrottleMaxTime, mBeConservativeForProxy);
}
nsresult nsHttpHandler::AddStandardRequestHeaders(
nsHttpRequestHead* request, bool isSecure,
ExtContentPolicyType aContentPolicyType, bool aShouldResistFingerprinting) {
nsresult rv;
// Add the "User-Agent" header
rv = request->SetHeader(nsHttp::User_Agent,
UserAgent(aShouldResistFingerprinting), false,
nsHttpHeaderArray::eVarietyRequestDefault);
if (NS_FAILED(rv)) return rv;
// MIME based content negotiation lives!
// Add the "Accept" header. Note, this is set as an override because the
// service worker expects to see it. The other "default" headers are
// hidden from service worker interception.
nsAutoCString accept;
if (aContentPolicyType == ExtContentPolicy::TYPE_DOCUMENT ||
aContentPolicyType == ExtContentPolicy::TYPE_SUBDOCUMENT) {
accept.Assign(mDocumentAcceptHeader);
} else if (aContentPolicyType == ExtContentPolicy::TYPE_IMAGE ||
aContentPolicyType == ExtContentPolicy::TYPE_IMAGESET) {
accept.Assign(mImageAcceptHeader);
} else if (aContentPolicyType == ExtContentPolicy::TYPE_STYLESHEET) {
accept.Assign(ACCEPT_HEADER_STYLE);
} else {
accept.Assign(ACCEPT_HEADER_ALL);
}
rv = request->SetHeader(nsHttp::Accept, accept, false,
nsHttpHeaderArray::eVarietyRequestOverride);
if (NS_FAILED(rv)) return rv;
// Add the "Accept-Language" header. This header is also exposed to the
// service worker.
if (mAcceptLanguagesIsDirty) {
rv = SetAcceptLanguages();
MOZ_ASSERT(NS_SUCCEEDED(rv));
}
// Add the "Accept-Language" header
if (!mAcceptLanguages.IsEmpty()) {
rv = request->SetHeader(nsHttp::Accept_Language, mAcceptLanguages, false,
nsHttpHeaderArray::eVarietyRequestOverride);
if (NS_FAILED(rv)) return rv;
}
// Add the "Accept-Encoding" header
if (isSecure) {
rv = request->SetHeader(nsHttp::Accept_Encoding, mHttpsAcceptEncodings,
false, nsHttpHeaderArray::eVarietyRequestDefault);
} else {
rv = request->SetHeader(nsHttp::Accept_Encoding, mHttpAcceptEncodings,
false, nsHttpHeaderArray::eVarietyRequestDefault);
}
if (NS_FAILED(rv)) return rv;
// add the "Send Hint" header
if (mSafeHintEnabled || mParentalControlEnabled) {
rv = request->SetHeader(nsHttp::Prefer, "safe"_ns, false,
nsHttpHeaderArray::eVarietyRequestDefault);
if (NS_FAILED(rv)) return rv;
}
return NS_OK;
}
nsresult nsHttpHandler::AddConnectionHeader(nsHttpRequestHead* request,
uint32_t caps) {
// RFC2616 section 19.6.2 states that the "Connection: keep-alive"
// and "Keep-alive" request headers should not be sent by HTTP/1.1
// user-agents. But this is not a problem in practice, and the
// alternative proxy-connection is worse. see 570283
constexpr auto close = "close"_ns;
constexpr auto keepAlive = "keep-alive"_ns;
const nsLiteralCString* connectionType = &close;
if (caps & NS_HTTP_ALLOW_KEEPALIVE) {
connectionType = &keepAlive;
}
return request->SetHeader(nsHttp::Connection, *connectionType);
}
bool nsHttpHandler::IsAcceptableEncoding(const char* enc, bool isSecure) {
if (!enc) return false;
// we used to accept x-foo anytime foo was acceptable, but that's just
// continuing bad behavior.. so limit it to known x-* patterns
bool rv;
if (isSecure) {
rv = nsHttp::FindToken(mHttpsAcceptEncodings.get(), enc, HTTP_LWS ",") !=
nullptr;
} else {
rv = nsHttp::FindToken(mHttpAcceptEncodings.get(), enc, HTTP_LWS ",") !=
nullptr;
}
// gzip and deflate are inherently acceptable in modern HTTP - always
// process them if a stream converter can also be found.
if (!rv &&
(!nsCRT::strcasecmp(enc, "gzip") || !nsCRT::strcasecmp(enc, "deflate") ||
!nsCRT::strcasecmp(enc, "x-gzip") ||
!nsCRT::strcasecmp(enc, "x-deflate"))) {
rv = true;
}
LOG(("nsHttpHandler::IsAceptableEncoding %s https=%d %d\n", enc, isSecure,
rv));
return rv;
}
nsISiteSecurityService* nsHttpHandler::GetSSService() {
if (!mSSService) {
nsCOMPtr<nsISiteSecurityService> service =
do_GetService(NS_SSSERVICE_CONTRACTID);
mSSService = new nsMainThreadPtrHolder<nsISiteSecurityService>(
"nsHttpHandler::mSSService", service);
}
return mSSService;
}
nsICookieService* nsHttpHandler::GetCookieService() {
if (!mCookieService) {
nsCOMPtr<nsICookieService> service =
do_GetService(NS_COOKIESERVICE_CONTRACTID);
mCookieService = new nsMainThreadPtrHolder<nsICookieService>(
"nsHttpHandler::mCookieService", service);
}
return mCookieService;
}
nsresult nsHttpHandler::GetIOService(nsIIOService** result) {
NS_ENSURE_ARG_POINTER(result);
*result = do_AddRef(mIOService.get()).take();
return NS_OK;
}
void nsHttpHandler::NotifyObservers(nsIChannel* chan, const char* event) {
LOG(("nsHttpHandler::NotifyObservers [this=%p chan=%p event=\"%s\"]\n", this,
chan, event));
nsCOMPtr<nsIObserverService> obsService = services::GetObserverService();
if (obsService) obsService->NotifyObservers(chan, event, nullptr);
}
nsresult nsHttpHandler::AsyncOnChannelRedirect(
nsIChannel* oldChan, nsIChannel* newChan, uint32_t flags,
nsIEventTarget* mainThreadEventTarget) {
MOZ_ASSERT(NS_IsMainThread() && (oldChan && newChan));
nsCOMPtr<nsIURI> oldURI;
oldChan->GetURI(getter_AddRefs(oldURI));
MOZ_ASSERT(oldURI);
nsCOMPtr<nsIURI> newURI;
newChan->GetURI(getter_AddRefs(newURI));
MOZ_ASSERT(newURI);
PrepareForAntiTrackingRedirectHeuristic(oldChan, oldURI, newChan, newURI);
DynamicFpiRedirectHeuristic(oldChan, oldURI, newChan, newURI);
// TODO E10S This helper has to be initialized on the other process
RefPtr<nsAsyncRedirectVerifyHelper> redirectCallbackHelper =
new nsAsyncRedirectVerifyHelper();
return redirectCallbackHelper->Init(oldChan, newChan, flags,
mainThreadEventTarget);
}
/* static */
nsresult nsHttpHandler::GenerateHostPort(const nsCString& host, int32_t port,
nsACString& hostLine) {
return NS_GenerateHostPort(host, port, hostLine);
}
// static
uint8_t nsHttpHandler::UrgencyFromCoSFlags(uint32_t cos) {
uint8_t urgency;
if (cos & nsIClassOfService::UrgentStart) {
// coming from an user interaction => response should be the highest
// priority
urgency = 1;
} else if (cos & nsIClassOfService::Leader) {
// main html document normal priority
urgency = 2;
} else if (cos & nsIClassOfService::Unblocked) {
urgency = 3;
} else if (cos & nsIClassOfService::Follower) {
urgency = 4;
} else if (cos & nsIClassOfService::Speculative) {
urgency = 6;
} else if (cos & nsIClassOfService::Background) {
// background tasks can be deprioritzed to the lowest priority
urgency = 6;
} else if (cos & nsIClassOfService::Tail) {
urgency = 6;
} else {
// all others get a lower priority than the main html document
urgency = 4;
}
return urgency;
}
//-----------------------------------------------------------------------------
// nsHttpHandler <private>
//-----------------------------------------------------------------------------
const nsCString& nsHttpHandler::UserAgent(bool aShouldResistFingerprinting) {
if (aShouldResistFingerprinting && !mSpoofedUserAgent.IsEmpty()) {
LOG(("using spoofed userAgent : %s\n", mSpoofedUserAgent.get()));
return mSpoofedUserAgent;
}
if (!mUserAgentOverride.IsVoid()) {
LOG(("using general.useragent.override : %s\n", mUserAgentOverride.get()));
return mUserAgentOverride;
}
if (mUserAgentIsDirty) {
BuildUserAgent();
mUserAgentIsDirty = false;
}
return mUserAgent;
}
void nsHttpHandler::BuildUserAgent() {
LOG(("nsHttpHandler::BuildUserAgent\n"));
MOZ_ASSERT(!mLegacyAppName.IsEmpty() && !mLegacyAppVersion.IsEmpty(),
"HTTP cannot send practical requests without this much");
// preallocate to worst-case size, which should always be better
// than if we didn't preallocate at all.
mUserAgent.SetCapacity(mLegacyAppName.Length() + mLegacyAppVersion.Length() +
#ifndef UA_SPARE_PLATFORM
mPlatform.Length() +
#endif
mOscpu.Length() + mMisc.Length() + mProduct.Length() +
mProductSub.Length() + mAppName.Length() +
mAppVersion.Length() + mCompatFirefox.Length() +
mCompatDevice.Length() + mDeviceModelId.Length() + 13);
// Application portion
mUserAgent.Assign(mLegacyAppName);
mUserAgent += '/';
mUserAgent += mLegacyAppVersion;
mUserAgent += ' ';
// Application comment
mUserAgent += '(';
#ifndef UA_SPARE_PLATFORM
if (!mPlatform.IsEmpty()) {
mUserAgent += mPlatform;
mUserAgent.AppendLiteral("; ");
}
#endif
if (!mCompatDevice.IsEmpty()) {
mUserAgent += mCompatDevice;
mUserAgent.AppendLiteral("; ");
} else if (!mOscpu.IsEmpty()) {
mUserAgent += mOscpu;
mUserAgent.AppendLiteral("; ");
}
if (!mDeviceModelId.IsEmpty()) {
mUserAgent += mDeviceModelId;
mUserAgent.AppendLiteral("; ");
}
mUserAgent += mMisc;
mUserAgent += ')';
// Product portion
mUserAgent += ' ';
mUserAgent += mProduct;
mUserAgent += '/';
mUserAgent += mProductSub;
bool isFirefox = mAppName.EqualsLiteral("Firefox");
if (isFirefox || mCompatFirefoxEnabled) {
// "Firefox/x.y" (compatibility) app token
mUserAgent += ' ';
mUserAgent += mCompatFirefox;
}
if (!isFirefox) {
// App portion
mUserAgent += ' ';
mUserAgent += mAppName;
mUserAgent += '/';
mUserAgent += mAppVersion;
}
}
#ifdef XP_WIN
// Hardcode the reported Windows version to 10.0. This way, Microsoft doesn't
// get to change Web compat-sensitive values without our veto. The compat-
// sensitivity keeps going up as 10.0 stays as the current value for longer
// and longer. If the system-reported version ever changes, we'll be able to
// take our time to evaluate the Web compat impact instead of having to
// scramble to react like happened with macOS changing from 10.x to 11.x.
# define OSCPU_WINDOWS "Windows NT 10.0"
# define OSCPU_WIN64 OSCPU_WINDOWS "; Win64; x64"
#endif
void nsHttpHandler::InitUserAgentComponents() {
// Don't build user agent components in socket process, since the system info
// is not available.
if (XRE_IsSocketProcess()) {
mUserAgentIsDirty = true;
return;
}
// Gather platform.
mPlatform.AssignLiteral(
#if defined(ANDROID)
"Android"
#elif defined(XP_WIN)
"Windows"
#elif defined(XP_MACOSX)
"Macintosh"
#elif defined(XP_UNIX)
// We historically have always had X11 here,
// and there seems little a webpage can sensibly do
// based on it being something else, so use X11 for
// backwards compatibility in all cases.
"X11"
#endif
);
#ifdef XP_UNIX
if (IsRunningUnderUbuntuSnap()) {
mPlatform.AppendLiteral("; Ubuntu");
}
#endif
#ifdef ANDROID
nsCOMPtr<nsIPropertyBag2> infoService =
do_GetService("@mozilla.org/system-info;1");
MOZ_ASSERT(infoService, "Could not find a system info service");
nsresult rv;
// Add the Android version number to the Fennec platform identifier.
nsAutoString androidVersion;
rv = infoService->GetPropertyAsAString(u"release_version"_ns, androidVersion);
MOZ_ASSERT_IF(
NS_SUCCEEDED(rv),
// Like version "9"
(androidVersion.Length() == 1 && std::isdigit(androidVersion[0])) ||
// Or like version "8.1", "10", or "12.1"
(androidVersion.Length() >= 2 && std::isdigit(androidVersion[0]) &&
(androidVersion[1] == u'.' || std::isdigit(androidVersion[1]))));
// Spoof version "Android 10" for Android OS versions < 10 to reduce their
// fingerprintable user information. For Android OS versions >= 10, report
// the real OS version because some enterprise websites only want to permit
// clients with recent OS version (like bug 1876742). Two leading digits
// in the version string means the version number is >= 10.
mPlatform += " ";
if (NS_SUCCEEDED(rv) && androidVersion.Length() >= 2 &&
std::isdigit(androidVersion[0]) && std::isdigit(androidVersion[1])) {
mPlatform += NS_LossyConvertUTF16toASCII(androidVersion);
} else {
mPlatform.AppendLiteral("10");
}
// Add the `Mobile` or `TV` token when running on device.
bool isTV;
rv = infoService->GetPropertyAsBool(u"tv"_ns, &isTV);
if (NS_SUCCEEDED(rv) && isTV) {
mCompatDevice.AssignLiteral("TV");
} else {
mCompatDevice.AssignLiteral("Mobile");
}
if (Preferences::GetBool(UA_PREF("use_device"), false)) {
mDeviceModelId = mozilla::net::GetDeviceModelId();
}
#endif // ANDROID
// Gather OS/CPU.
#if defined(XP_WIN)
# if defined _M_X64 || defined _M_AMD64
mOscpu.AssignLiteral(OSCPU_WIN64);
# elif defined(_ARM64_)
// Report ARM64 Windows 11+ as x86_64 and Windows 10 as x86. Windows 11+
// supports x86_64 emulation, but Windows 10 only supports x86 emulation.
if (IsWin11OrLater()) {
mOscpu.AssignLiteral(OSCPU_WIN64);
} else {
mOscpu.AssignLiteral(OSCPU_WINDOWS);
}
# else
BOOL isWow64 = FALSE;
if (!IsWow64Process(GetCurrentProcess(), &isWow64)) {
isWow64 = FALSE;
}
if (isWow64) {
mOscpu.AssignLiteral(OSCPU_WIN64);
} else {
mOscpu.AssignLiteral(OSCPU_WINDOWS);
}
# endif
#elif defined(XP_MACOSX)
mOscpu.AssignLiteral("Intel Mac OS X 10.15");
#elif defined(XP_UNIX)
if (mozilla::StaticPrefs::network_http_useragent_freezeCpu()) {
# ifdef ANDROID
mOscpu.AssignLiteral("Linux armv81");
# else
mOscpu.AssignLiteral("Linux x86_64");
# endif
} else {
struct utsname name {};
int ret = uname(&name);
if (ret >= 0) {
nsAutoCString buf;
buf = (char*)name.sysname;
buf += ' ';
# ifdef AIX
// AIX uname returns machine specific info in the uname.machine
// field and does not return the cpu type like other platforms.
// We use the AIX version and release numbers instead.
buf += (char*)name.version;
buf += '.';
buf += (char*)name.release;
# else
buf += (char*)name.machine;
# endif
mOscpu.Assign(buf);
}
}
#endif
mUserAgentIsDirty = true;
}
uint32_t nsHttpHandler::MaxSocketCount() {
PR_CallOnce(&nsSocketTransportService::gMaxCountInitOnce,
nsSocketTransportService::DiscoverMaxCount);
// Don't use the full max count because sockets can be held in
// the persistent connection pool for a long time and that could
// starve other users.
uint32_t maxCount = nsSocketTransportService::gMaxCount;
if (maxCount <= 8) {
maxCount = 1;
} else {
maxCount -= 8;
}
return maxCount;
}
// static
void nsHttpHandler::PrefsChanged(const char* pref, void* self) {
static_cast<nsHttpHandler*>(self)->PrefsChanged(pref);
}
void nsHttpHandler::PrefsChanged(const char* pref) {
nsresult rv = NS_OK;
int32_t val;
LOG(("nsHttpHandler::PrefsChanged [pref=%s]\n", pref));
if (pref) {
gIOService->NotifySocketProcessPrefsChanged(pref);
}
#define PREF_CHANGED(p) ((pref == nullptr) || !strcmp(pref, p))
#define MULTI_PREF_CHANGED(p) \
((pref == nullptr) || !strncmp(pref, p, sizeof(p) - 1))
// If a security pref changed, lets clear our connection pool reuse
if (MULTI_PREF_CHANGED(SECURITY_PREFIX)) {
LOG(("nsHttpHandler::PrefsChanged Security Pref Changed %s\n", pref));
if (mConnMgr) {
rv = mConnMgr->DoShiftReloadConnectionCleanup();
if (NS_FAILED(rv)) {
LOG(
("nsHttpHandler::PrefsChanged "
"DoShiftReloadConnectionCleanup failed (%08x)\n",
static_cast<uint32_t>(rv)));
}
rv = mConnMgr->PruneDeadConnections();
if (NS_FAILED(rv)) {
LOG(
("nsHttpHandler::PrefsChanged "
"PruneDeadConnections failed (%08x)\n",
static_cast<uint32_t>(rv)));
}
}
}
//
// UA components
//
bool cVar = false;
if (PREF_CHANGED(UA_PREF("compatMode.firefox"))) {
rv = Preferences::GetBool(UA_PREF("compatMode.firefox"), &cVar);
mCompatFirefoxEnabled = (NS_SUCCEEDED(rv) && cVar);
mUserAgentIsDirty = true;
}
// general.useragent.override
if (PREF_CHANGED(UA_PREF("override"))) {
Preferences::GetCString(UA_PREF("override"), mUserAgentOverride);
mUserAgentIsDirty = true;
}
#ifdef ANDROID
// general.useragent.use_device
if (PREF_CHANGED(UA_PREF("use_device"))) {
if (Preferences::GetBool(UA_PREF("use_device"), false)) {
if (!XRE_IsSocketProcess()) {
mDeviceModelId = mozilla::net::GetDeviceModelId();
if (gIOService->SocketProcessReady()) {
Unused << SocketProcessParent::GetSingleton()
->SendUpdateDeviceModelId(mDeviceModelId);
}
}
} else {
mDeviceModelId.Truncate();
}
mUserAgentIsDirty = true;
}
#endif
//
// HTTP options
//
if (PREF_CHANGED(HTTP_PREF("keep-alive.timeout"))) {
rv = Preferences::GetInt(HTTP_PREF("keep-alive.timeout"), &val);
if (NS_SUCCEEDED(rv)) {
mIdleTimeout = PR_SecondsToInterval(clamped(val, 1, 0xffff));
}
}
if (PREF_CHANGED(HTTP_PREF("request.max-attempts"))) {
rv = Preferences::GetInt(HTTP_PREF("request.max-attempts"), &val);
if (NS_SUCCEEDED(rv)) {
mMaxRequestAttempts = (uint16_t)clamped(val, 1, 0xffff);
}
}
if (PREF_CHANGED(HTTP_PREF("request.max-start-delay"))) {
rv = Preferences::GetInt(HTTP_PREF("request.max-start-delay"), &val);
if (NS_SUCCEEDED(rv)) {
mMaxRequestDelay = (uint16_t)clamped(val, 0, 0xffff);
if (mConnMgr) {
rv = mConnMgr->UpdateParam(nsHttpConnectionMgr::MAX_REQUEST_DELAY,
mMaxRequestDelay);
if (NS_FAILED(rv)) {
LOG(
("nsHttpHandler::PrefsChanged (request.max-start-delay)"
"UpdateParam failed (%08x)\n",
static_cast<uint32_t>(rv)));
}
}
}
}
if (PREF_CHANGED(HTTP_PREF("response.timeout"))) {
rv = Preferences::GetInt(HTTP_PREF("response.timeout"), &val);
if (NS_SUCCEEDED(rv)) {
mResponseTimeout = PR_SecondsToInterval(clamped(val, 0, 0xffff));
}
}
if (PREF_CHANGED(HTTP_PREF("network-changed.timeout"))) {
rv = Preferences::GetInt(HTTP_PREF("network-changed.timeout"), &val);
if (NS_SUCCEEDED(rv)) mNetworkChangedTimeout = clamped(val, 1, 600) * 1000;
}
if (PREF_CHANGED(HTTP_PREF("max-connections"))) {
rv = Preferences::GetInt(HTTP_PREF("max-connections"), &val);
if (NS_SUCCEEDED(rv)) {
mMaxConnections =
(uint16_t)clamped((uint32_t)val, (uint32_t)1, MaxSocketCount());
if (mConnMgr) {
rv = mConnMgr->UpdateParam(nsHttpConnectionMgr::MAX_CONNECTIONS,
mMaxConnections);
if (NS_FAILED(rv)) {
LOG(
("nsHttpHandler::PrefsChanged (max-connections)"
"UpdateParam failed (%08x)\n",
static_cast<uint32_t>(rv)));
}
}
}
}
if (PREF_CHANGED(
HTTP_PREF("max-urgent-start-excessive-connections-per-host"))) {
rv = Preferences::GetInt(
HTTP_PREF("max-urgent-start-excessive-connections-per-host"), &val);
if (NS_SUCCEEDED(rv)) {
mMaxUrgentExcessiveConns = (uint8_t)clamped(val, 1, 0xff);
if (mConnMgr) {
rv = mConnMgr->UpdateParam(nsHttpConnectionMgr::MAX_URGENT_START_Q,
mMaxUrgentExcessiveConns);
if (NS_FAILED(rv)) {
LOG(
("nsHttpHandler::PrefsChanged "
"(max-urgent-start-excessive-connections-per-host)"
"UpdateParam failed (%08x)\n",
static_cast<uint32_t>(rv)));
}
}
}
}
if (PREF_CHANGED(HTTP_PREF("max-persistent-connections-per-server"))) {
rv = Preferences::GetInt(HTTP_PREF("max-persistent-connections-per-server"),
&val);
if (NS_SUCCEEDED(rv)) {
mMaxPersistentConnectionsPerServer = (uint8_t)clamped(val, 1, 0xff);
if (mConnMgr) {
rv = mConnMgr->UpdateParam(
nsHttpConnectionMgr::MAX_PERSISTENT_CONNECTIONS_PER_HOST,
mMaxPersistentConnectionsPerServer);
if (NS_FAILED(rv)) {
LOG(
("nsHttpHandler::PrefsChanged "
"(max-persistent-connections-per-server)"
"UpdateParam failed (%08x)\n",
static_cast<uint32_t>(rv)));
}
}
}
}
if (PREF_CHANGED(HTTP_PREF("max-persistent-connections-per-proxy"))) {
rv = Preferences::GetInt(HTTP_PREF("max-persistent-connections-per-proxy"),
&val);
if (NS_SUCCEEDED(rv)) {
mMaxPersistentConnectionsPerProxy = (uint8_t)clamped(val, 1, 0xff);
if (mConnMgr) {
rv = mConnMgr->UpdateParam(
nsHttpConnectionMgr::MAX_PERSISTENT_CONNECTIONS_PER_PROXY,
mMaxPersistentConnectionsPerProxy);
if (NS_FAILED(rv)) {
LOG(
("nsHttpHandler::PrefsChanged "
"(max-persistent-connections-per-proxy)"
"UpdateParam failed (%08x)\n",
static_cast<uint32_t>(rv)));
}
}
}
}
if (PREF_CHANGED(HTTP_PREF("redirection-limit"))) {
rv = Preferences::GetInt(HTTP_PREF("redirection-limit"), &val);
if (NS_SUCCEEDED(rv)) mRedirectionLimit = (uint8_t)clamped(val, 0, 0xff);
}
if (PREF_CHANGED(HTTP_PREF("connection-retry-timeout"))) {
rv = Preferences::GetInt(HTTP_PREF("connection-retry-timeout"), &val);
if (NS_SUCCEEDED(rv)) mIdleSynTimeout = (uint16_t)clamped(val, 0, 3000);
}
if (PREF_CHANGED(HTTP_PREF("fast-fallback-to-IPv4"))) {
rv = Preferences::GetBool(HTTP_PREF("fast-fallback-to-IPv4"), &cVar);
if (NS_SUCCEEDED(rv)) mFastFallbackToIPv4 = cVar;
}
if (PREF_CHANGED(HTTP_PREF("fallback-connection-timeout"))) {
rv = Preferences::GetInt(HTTP_PREF("fallback-connection-timeout"), &val);
if (NS_SUCCEEDED(rv)) {
mFallbackSynTimeout = (uint16_t)clamped(val, 0, 10 * 60);
}
}
if (PREF_CHANGED(HTTP_PREF("version"))) {
nsAutoCString httpVersion;
Preferences::GetCString(HTTP_PREF("version"), httpVersion);
if (!httpVersion.IsVoid()) {
if (httpVersion.EqualsLiteral("1.1")) {
mHttpVersion = HttpVersion::v1_1;
} else if (httpVersion.EqualsLiteral("0.9")) {
mHttpVersion = HttpVersion::v0_9;
} else {
mHttpVersion = HttpVersion::v1_0;
}
}
}
if (PREF_CHANGED(HTTP_PREF("proxy.version"))) {
nsAutoCString httpVersion;
Preferences::GetCString(HTTP_PREF("proxy.version"), httpVersion);
if (!httpVersion.IsVoid()) {
if (httpVersion.EqualsLiteral("1.1")) {
mProxyHttpVersion = HttpVersion::v1_1;
} else {
mProxyHttpVersion = HttpVersion::v1_0;
}
// it does not make sense to issue a HTTP/0.9 request to a proxy server
}
}
if (PREF_CHANGED(HTTP_PREF("proxy.respect-be-conservative"))) {
rv =
Preferences::GetBool(HTTP_PREF("proxy.respect-be-conservative"), &cVar);
if (NS_SUCCEEDED(rv)) {
mBeConservativeForProxy = cVar;
if (mConnMgr) {
Unused << mConnMgr->UpdateParam(
nsHttpConnectionMgr::PROXY_BE_CONSERVATIVE,
static_cast<int32_t>(mBeConservativeForProxy));
}
}
}
if (PREF_CHANGED(HTTP_PREF("qos"))) {
rv = Preferences::GetInt(HTTP_PREF("qos"), &val);
if (NS_SUCCEEDED(rv)) mQoSBits = (uint8_t)clamped(val, 0, 0xff);
}
if (PREF_CHANGED(HTTP_PREF("accept-encoding"))) {
nsAutoCString acceptEncodings;
rv = Preferences::GetCString(HTTP_PREF("accept-encoding"), acceptEncodings);
if (NS_SUCCEEDED(rv)) {
rv = SetAcceptEncodings(acceptEncodings.get(), false);
MOZ_ASSERT(NS_SUCCEEDED(rv));
}
}
if (PREF_CHANGED(HTTP_PREF("accept-encoding.secure"))) {
nsAutoCString acceptEncodings;
rv = Preferences::GetCString(HTTP_PREF("accept-encoding.secure"),
acceptEncodings);
if (NS_SUCCEEDED(rv)) {
rv = SetAcceptEncodings(acceptEncodings.get(), true);
MOZ_ASSERT(NS_SUCCEEDED(rv));
}
}
if (PREF_CHANGED(HTTP_PREF("default-socket-type"))) {
nsAutoCString sval;
rv = Preferences::GetCString(HTTP_PREF("default-socket-type"), sval);
if (NS_SUCCEEDED(rv)) {
if (sval.IsEmpty()) {
mDefaultSocketType.SetIsVoid(true);
} else {
// verify that this socket type is actually valid
nsCOMPtr<nsISocketProviderService> sps =
nsSocketProviderService::GetOrCreate();
if (sps) {
nsCOMPtr<nsISocketProvider> sp;
rv = sps->GetSocketProvider(sval.get(), getter_AddRefs(sp));
if (NS_SUCCEEDED(rv)) {
// OK, this looks like a valid socket provider.
mDefaultSocketType.Assign(sval);
}
}
}
}
}
if (PREF_CHANGED(HTTP_PREF("prompt-temp-redirect"))) {
rv = Preferences::GetBool(HTTP_PREF("prompt-temp-redirect"), &cVar);
if (NS_SUCCEEDED(rv)) {
mPromptTempRedirect = cVar;
}
}
if (PREF_CHANGED(HTTP_PREF("assoc-req.enforce"))) {
cVar = false;
rv = Preferences::GetBool(HTTP_PREF("assoc-req.enforce"), &cVar);
if (NS_SUCCEEDED(rv)) mEnforceAssocReq = cVar;
}
// enable Persistent caching for HTTPS - bug#205921
if (PREF_CHANGED(BROWSER_PREF("disk_cache_ssl"))) {
cVar = false;
rv = Preferences::GetBool(BROWSER_PREF("disk_cache_ssl"), &cVar);
if (NS_SUCCEEDED(rv)) mEnablePersistentHttpsCaching = cVar;
}
if (PREF_CHANGED(HTTP_PREF("phishy-userpass-length"))) {
rv = Preferences::GetInt(HTTP_PREF("phishy-userpass-length"), &val);
if (NS_SUCCEEDED(rv)) {
mPhishyUserPassLength = (uint8_t)clamped(val, 0, 0xff);
}
}
if (PREF_CHANGED(HTTP_PREF("http2.timeout"))) {
mSpdyTimeout = PR_SecondsToInterval(
clamped(StaticPrefs::network_http_http2_timeout(), 1, 0xffff));
}
if (PREF_CHANGED(HTTP_PREF("http2.chunk-size"))) {
// keep this within http/2 ranges of 1 to 2^24-1
mSpdySendingChunkSize = (uint32_t)clamped(
StaticPrefs::network_http_http2_chunk_size(), 1, 0xffffff);
}
// The amount of idle seconds on a http2 connection before initiating a
// server ping. 0 will disable.
if (PREF_CHANGED(HTTP_PREF("http2.ping-threshold"))) {
mSpdyPingThreshold = PR_SecondsToInterval((uint16_t)clamped(
StaticPrefs::network_http_http2_ping_threshold(), 0, 0x7fffffff));
}
// The amount of seconds to wait for a http2 ping response before
// closing the session.
if (PREF_CHANGED(HTTP_PREF("http2.ping-timeout"))) {
mSpdyPingTimeout = PR_SecondsToInterval((uint16_t)clamped(
StaticPrefs::network_http_http2_ping_timeout(), 0, 0x7fffffff));
}
if (PREF_CHANGED(HTTP_PREF("altsvc.enabled"))) {
rv = Preferences::GetBool(HTTP_PREF("altsvc.enabled"), &cVar);
if (NS_SUCCEEDED(rv)) mEnableAltSvc = cVar;
}
if (PREF_CHANGED(HTTP_PREF("altsvc.oe"))) {
rv = Preferences::GetBool(HTTP_PREF("altsvc.oe"), &cVar);
if (NS_SUCCEEDED(rv)) mEnableAltSvcOE = cVar;
}
if (PREF_CHANGED(HTTP_PREF("http2.push-allowance"))) {
mSpdyPushAllowance = static_cast<uint32_t>(
clamped(StaticPrefs::network_http_http2_push_allowance(), 1024,
static_cast<int32_t>(ASpdySession::kInitialRwin)));
}
if (PREF_CHANGED(HTTP_PREF("http2.pull-allowance"))) {
mSpdyPullAllowance = static_cast<uint32_t>(clamped(
StaticPrefs::network_http_http2_pull_allowance(), 1024, 0x7fffffff));
}
if (PREF_CHANGED(HTTP_PREF("http2.default-concurrent"))) {
mDefaultSpdyConcurrent = static_cast<uint32_t>(std::max<int32_t>(
std::min<int32_t>(StaticPrefs::network_http_http2_default_concurrent(),
9999),
1));
}
// If http2.send-buffer-size is non-zero, the size to set the TCP
// sendbuffer to once the stream has surpassed this number of bytes uploaded
if (PREF_CHANGED(HTTP_PREF("http2.send-buffer-size"))) {
mSpdySendBufferSize = (uint32_t)clamped(
StaticPrefs::network_http_http2_send_buffer_size(), 1500, 0x7fffffff);
}
// The maximum amount of time to wait for socket transport to be
// established
if (PREF_CHANGED(HTTP_PREF("connection-timeout"))) {
rv = Preferences::GetInt(HTTP_PREF("connection-timeout"), &val);
if (NS_SUCCEEDED(rv)) {
// the pref is in seconds, but the variable is in milliseconds
mConnectTimeout = clamped(val, 1, 0xffff) * PR_MSEC_PER_SEC;
}
}
// The maximum amount of time to wait for a tls handshake to finish.
if (PREF_CHANGED(HTTP_PREF("tls-handshake-timeout"))) {
rv = Preferences::GetInt(HTTP_PREF("tls-handshake-timeout"), &val);
if (NS_SUCCEEDED(rv)) {
// the pref is in seconds, but the variable is in milliseconds
mTLSHandshakeTimeout = clamped(val, 1, 0xffff) * PR_MSEC_PER_SEC;
}
}
// The maximum number of current global half open sockets allowable
// for starting a new speculative connection.
if (PREF_CHANGED(HTTP_PREF("speculative-parallel-limit"))) {
rv = Preferences::GetInt(HTTP_PREF("speculative-parallel-limit"), &val);
if (NS_SUCCEEDED(rv)) {
mParallelSpeculativeConnectLimit = (uint32_t)clamped(val, 0, 1024);
}
}
// Whether or not to block requests for non head js/css items (e.g. media)
// while those elements load.
if (PREF_CHANGED(HTTP_PREF("rendering-critical-requests-prioritization"))) {
rv = Preferences::GetBool(
HTTP_PREF("rendering-critical-requests-prioritization"), &cVar);
if (NS_SUCCEEDED(rv)) mCriticalRequestPrioritization = cVar;
}
// on transition of network.http.diagnostics to true print
// a bunch of information to the console
if (pref && PREF_CHANGED(HTTP_PREF("diagnostics"))) {
rv = Preferences::GetBool(HTTP_PREF("diagnostics"), &cVar);
if (NS_SUCCEEDED(rv) && cVar) {
if (mConnMgr) mConnMgr->PrintDiagnostics();
}
}
if (PREF_CHANGED(HTTP_PREF("throttle.enable"))) {
rv = Preferences::GetBool(HTTP_PREF("throttle.enable"), &mThrottleEnabled);
if (NS_SUCCEEDED(rv) && mConnMgr) {
Unused << mConnMgr->UpdateParam(nsHttpConnectionMgr::THROTTLING_ENABLED,
static_cast<int32_t>(mThrottleEnabled));
}
}
if (PREF_CHANGED(HTTP_PREF("throttle.version"))) {
Unused << Preferences::GetInt(HTTP_PREF("throttle.version"), &val);
mThrottleVersion = (uint32_t)clamped(val, 1, 2);
}
if (PREF_CHANGED(HTTP_PREF("throttle.suspend-for"))) {
rv = Preferences::GetInt(HTTP_PREF("throttle.suspend-for"), &val);
mThrottleSuspendFor = (uint32_t)clamped(val, 0, 120000);
if (NS_SUCCEEDED(rv) && mConnMgr) {
Unused << mConnMgr->UpdateParam(
nsHttpConnectionMgr::THROTTLING_SUSPEND_FOR, mThrottleSuspendFor);
}
}
if (PREF_CHANGED(HTTP_PREF("throttle.resume-for"))) {
rv = Preferences::GetInt(HTTP_PREF("throttle.resume-for"), &val);
mThrottleResumeFor = (uint32_t)clamped(val, 0, 120000);
if (NS_SUCCEEDED(rv) && mConnMgr) {
Unused << mConnMgr->UpdateParam(
nsHttpConnectionMgr::THROTTLING_RESUME_FOR, mThrottleResumeFor);
}
}
if (PREF_CHANGED(HTTP_PREF("throttle.read-limit-bytes"))) {
rv = Preferences::GetInt(HTTP_PREF("throttle.read-limit-bytes"), &val);
mThrottleReadLimit = (uint32_t)clamped(val, 0, 500000);
if (NS_SUCCEEDED(rv) && mConnMgr) {
Unused << mConnMgr->UpdateParam(
nsHttpConnectionMgr::THROTTLING_READ_LIMIT, mThrottleReadLimit);
}
}
if (PREF_CHANGED(HTTP_PREF("throttle.read-interval-ms"))) {
rv = Preferences::GetInt(HTTP_PREF("throttle.read-interval-ms"), &val);
mThrottleReadInterval = (uint32_t)clamped(val, 0, 120000);
if (NS_SUCCEEDED(rv) && mConnMgr) {
Unused << mConnMgr->UpdateParam(
nsHttpConnectionMgr::THROTTLING_READ_INTERVAL, mThrottleReadInterval);
}
}
if (PREF_CHANGED(HTTP_PREF("throttle.hold-time-ms"))) {
rv = Preferences::GetInt(HTTP_PREF("throttle.hold-time-ms"), &val);
mThrottleHoldTime = (uint32_t)clamped(val, 0, 120000);
if (NS_SUCCEEDED(rv) && mConnMgr) {
Unused << mConnMgr->UpdateParam(nsHttpConnectionMgr::THROTTLING_HOLD_TIME,
mThrottleHoldTime);
}
}
if (PREF_CHANGED(HTTP_PREF("throttle.max-time-ms"))) {
rv = Preferences::GetInt(HTTP_PREF("throttle.max-time-ms"), &val);
mThrottleMaxTime = (uint32_t)clamped(val, 0, 120000);
if (NS_SUCCEEDED(rv) && mConnMgr) {
Unused << mConnMgr->UpdateParam(nsHttpConnectionMgr::THROTTLING_MAX_TIME,
mThrottleMaxTime);
}
}
if (PREF_CHANGED(HTTP_PREF("send_window_size"))) {
Unused << Preferences::GetInt(HTTP_PREF("send_window_size"), &val);
mSendWindowSize = val >= 0 ? val : 0;
}
if (PREF_CHANGED(HTTP_PREF("on_click_priority"))) {
Unused << Preferences::GetBool(HTTP_PREF("on_click_priority"),
&mUrgentStartEnabled);
}
if (PREF_CHANGED(HTTP_PREF("tailing.enabled"))) {
Unused << Preferences::GetBool(HTTP_PREF("tailing.enabled"),
&mTailBlockingEnabled);
}
if (PREF_CHANGED(HTTP_PREF("tailing.delay-quantum"))) {
Unused << Preferences::GetInt(HTTP_PREF("tailing.delay-quantum"), &val);
mTailDelayQuantum = (uint32_t)clamped(val, 0, 60000);
}
if (PREF_CHANGED(HTTP_PREF("tailing.delay-quantum-after-domcontentloaded"))) {
Unused << Preferences::GetInt(
HTTP_PREF("tailing.delay-quantum-after-domcontentloaded"), &val);
mTailDelayQuantumAfterDCL = (uint32_t)clamped(val, 0, 60000);
}
if (PREF_CHANGED(HTTP_PREF("tailing.delay-max"))) {
Unused << Preferences::GetInt(HTTP_PREF("tailing.delay-max"), &val);
mTailDelayMax = (uint32_t)clamped(val, 0, 60000);
}
if (PREF_CHANGED(HTTP_PREF("tailing.total-max"))) {
Unused << Preferences::GetInt(HTTP_PREF("tailing.total-max"), &val);
mTailTotalMax = (uint32_t)clamped(val, 0, 60000);
}
if (PREF_CHANGED(HTTP_PREF("focused_window_transaction_ratio"))) {
float ratio = 0;
rv = Preferences::GetFloat(HTTP_PREF("focused_window_transaction_ratio"),
&ratio);
if (NS_SUCCEEDED(rv)) {
if (ratio > 0 && ratio < 1) {
mFocusedWindowTransactionRatio = ratio;
} else {
NS_WARNING("Wrong value for focused_window_transaction_ratio");
}
}
}
//
// INTL options
//
if (PREF_CHANGED(INTL_ACCEPT_LANGUAGES)) {
// We don't want to set the new accept languages here since
// this pref is a complex type and it may be racy with flushing
// string resources.
mAcceptLanguagesIsDirty = true;
}
//
// Tracking options
//
// Hint option
if (PREF_CHANGED(SAFE_HINT_HEADER_VALUE)) {
cVar = false;
rv = Preferences::GetBool(SAFE_HINT_HEADER_VALUE, &cVar);
if (NS_SUCCEEDED(rv)) {
mSafeHintEnabled = cVar;
}
}
// toggle to true anytime a token bucket related pref is changed.. that
// includes telemetry and allow-experiments because of the abtest profile
bool requestTokenBucketUpdated = false;
// "security.ssl3.ecdhe_rsa_aes_128_gcm_sha256" is the required h2 interop
// suite.
if (PREF_CHANGED(H2MANDATORY_SUITE)) {
cVar = false;
rv = Preferences::GetBool(H2MANDATORY_SUITE, &cVar);
if (NS_SUCCEEDED(rv)) {
mH2MandatorySuiteEnabled = cVar;
}
}
// network.http.debug-observations
if (PREF_CHANGED("network.http.debug-observations")) {
cVar = false;
rv = Preferences::GetBool("network.http.debug-observations", &cVar);
if (NS_SUCCEEDED(rv)) {
mDebugObservations = cVar;
}
}
if (PREF_CHANGED(HTTP_PREF("pacing.requests.enabled"))) {
rv = Preferences::GetBool(HTTP_PREF("pacing.requests.enabled"), &cVar);
if (NS_SUCCEEDED(rv)) {
mRequestTokenBucketEnabled = cVar;
requestTokenBucketUpdated = true;
}
}
if (PREF_CHANGED(HTTP_PREF("pacing.requests.min-parallelism"))) {
rv =
Preferences::GetInt(HTTP_PREF("pacing.requests.min-parallelism"), &val);
if (NS_SUCCEEDED(rv)) {
mRequestTokenBucketMinParallelism =
static_cast<uint16_t>(clamped(val, 1, 1024));
requestTokenBucketUpdated = true;
}
}
if (PREF_CHANGED(HTTP_PREF("pacing.requests.hz"))) {
rv = Preferences::GetInt(HTTP_PREF("pacing.requests.hz"), &val);
if (NS_SUCCEEDED(rv)) {
mRequestTokenBucketHz = static_cast<uint32_t>(clamped(val, 1, 10000));
requestTokenBucketUpdated = true;
}
}
if (PREF_CHANGED(HTTP_PREF("pacing.requests.burst"))) {
rv = Preferences::GetInt(HTTP_PREF("pacing.requests.burst"), &val);
if (NS_SUCCEEDED(rv)) {
mRequestTokenBucketBurst = val ? val : 1;
requestTokenBucketUpdated = true;
}
}
if (requestTokenBucketUpdated) {
MakeNewRequestTokenBucket();
}
// Keepalive values for initial and idle connections.
if (PREF_CHANGED(HTTP_PREF("tcp_keepalive.short_lived_connections"))) {
rv = Preferences::GetBool(
HTTP_PREF("tcp_keepalive.short_lived_connections"), &cVar);
if (NS_SUCCEEDED(rv) && cVar != mTCPKeepaliveShortLivedEnabled) {
mTCPKeepaliveShortLivedEnabled = cVar;
}
}
if (PREF_CHANGED(HTTP_PREF("tcp_keepalive.short_lived_time"))) {
rv = Preferences::GetInt(HTTP_PREF("tcp_keepalive.short_lived_time"), &val);
if (NS_SUCCEEDED(rv) && val > 0) {
mTCPKeepaliveShortLivedTimeS = clamped(val, 1, 300); // Max 5 mins.
}
}
if (PREF_CHANGED(HTTP_PREF("tcp_keepalive.short_lived_idle_time"))) {
rv = Preferences::GetInt(HTTP_PREF("tcp_keepalive.short_lived_idle_time"),
&val);
if (NS_SUCCEEDED(rv) && val > 0) {
mTCPKeepaliveShortLivedIdleTimeS = clamped(val, 1, kMaxTCPKeepIdle);
}
}
// Keepalive values for Long-lived Connections.
if (PREF_CHANGED(HTTP_PREF("tcp_keepalive.long_lived_connections"))) {
rv = Preferences::GetBool(HTTP_PREF("tcp_keepalive.long_lived_connections"),
&cVar);
if (NS_SUCCEEDED(rv) && cVar != mTCPKeepaliveLongLivedEnabled) {
mTCPKeepaliveLongLivedEnabled = cVar;
}
}
if (PREF_CHANGED(HTTP_PREF("tcp_keepalive.long_lived_idle_time"))) {
rv = Preferences::GetInt(HTTP_PREF("tcp_keepalive.long_lived_idle_time"),
&val);
if (NS_SUCCEEDED(rv) && val > 0) {
mTCPKeepaliveLongLivedIdleTimeS = clamped(val, 1, kMaxTCPKeepIdle);
}
}
if (PREF_CHANGED(HTTP_PREF("enforce-framing.http1")) ||
PREF_CHANGED(HTTP_PREF("enforce-framing.soft")) ||
PREF_CHANGED(HTTP_PREF("enforce-framing.strict_chunked_encoding"))) {
rv = Preferences::GetBool(HTTP_PREF("enforce-framing.http1"), &cVar);
if (NS_SUCCEEDED(rv) && cVar) {
mEnforceH1Framing = FRAMECHECK_STRICT;
} else {
rv = Preferences::GetBool(
HTTP_PREF("enforce-framing.strict_chunked_encoding"), &cVar);
if (NS_SUCCEEDED(rv) && cVar) {
mEnforceH1Framing = FRAMECHECK_STRICT_CHUNKED;
} else {
rv = Preferences::GetBool(HTTP_PREF("enforce-framing.soft"), &cVar);
if (NS_SUCCEEDED(rv) && cVar) {
mEnforceH1Framing = FRAMECHECK_BARELY;
} else {
mEnforceH1Framing = FRAMECHECK_LAX;
}
}
}
}
if (PREF_CHANGED(HTTP_PREF("http2.default-hpack-buffer"))) {
mDefaultHpackBuffer =
StaticPrefs::network_http_http2_default_hpack_buffer();
}
if (PREF_CHANGED(HTTP_PREF("http3.default-qpack-table-size"))) {
rv = Preferences::GetInt(HTTP_PREF("http3.default-qpack-table-size"), &val);
if (NS_SUCCEEDED(rv)) {
mQpackTableSize = val;
}
}
if (PREF_CHANGED(HTTP_PREF("http3.default-max-stream-blocked"))) {
rv = Preferences::GetInt(HTTP_PREF("http3.default-max-stream-blocked"),
&val);
if (NS_SUCCEEDED(rv)) {
mHttp3MaxBlockedStreams = clamped(val, 0, 0xffff);
}
}
const bool imageAcceptPrefChanged = PREF_CHANGED("image.http.accept") ||
PREF_CHANGED("image.avif.enabled") ||
PREF_CHANGED("image.jxl.enabled");
if (imageAcceptPrefChanged) {
nsAutoCString userSetImageAcceptHeader;
if (Preferences::HasUserValue("image.http.accept")) {
rv = Preferences::GetCString("image.http.accept",
userSetImageAcceptHeader);
if (NS_FAILED(rv)) {
userSetImageAcceptHeader.Truncate();
}
}
if (userSetImageAcceptHeader.IsEmpty()) {
mImageAcceptHeader.Assign(ImageAcceptHeader());
} else {
mImageAcceptHeader.Assign(userSetImageAcceptHeader);
}
}
if (PREF_CHANGED("network.http.accept") || imageAcceptPrefChanged) {
nsAutoCString userSetDocumentAcceptHeader;
if (Preferences::HasUserValue("network.http.accept")) {
rv = Preferences::GetCString("network.http.accept",
userSetDocumentAcceptHeader);
if (NS_FAILED(rv)) {
userSetDocumentAcceptHeader.Truncate();
}
}
if (userSetDocumentAcceptHeader.IsEmpty()) {
mDocumentAcceptHeader.Assign(DocumentAcceptHeader(mImageAcceptHeader));
} else {
mDocumentAcceptHeader.Assign(userSetDocumentAcceptHeader);
}
}
if (PREF_CHANGED(HTTP_PREF("http3.alt-svc-mapping-for-testing"))) {
nsAutoCString altSvcMappings;
rv = Preferences::GetCString(HTTP_PREF("http3.alt-svc-mapping-for-testing"),
altSvcMappings);
if (NS_SUCCEEDED(rv)) {
for (const nsACString& tokenSubstring :
nsCCharSeparatedTokenizer(altSvcMappings, ',').ToRange()) {
nsAutoCString token{tokenSubstring};
int32_t index = token.Find(";");
if (index != kNotFound) {
mAltSvcMappingTemptativeMap.InsertOrUpdate(
Substring(token, 0, index),
MakeUnique<nsCString>(Substring(token, index + 1)));
}
}
}
}
if (PREF_CHANGED(HTTP_PREF("http3.enable_qlog"))) {
// Initialize the directory.
nsCOMPtr<nsIFile> qlogDir;
if (Preferences::GetBool(HTTP_PREF("http3.enable_qlog")) &&
!mHttp3QlogDir.IsEmpty() &&
NS_SUCCEEDED(NS_NewNativeLocalFile(mHttp3QlogDir, false,
getter_AddRefs(qlogDir)))) {
// Here we do main thread IO, but since this only happens
// when enabling a developer feature it's not a problem for users.
rv = qlogDir->Create(nsIFile::DIRECTORY_TYPE, 0755);
if (NS_FAILED(rv) && rv != NS_ERROR_FILE_ALREADY_EXISTS) {
NS_WARNING("Creating qlog dir failed");
}
}
}
// Enable HTTP response timeout if TCP Keepalives are disabled.
mResponseTimeoutEnabled =
!mTCPKeepaliveShortLivedEnabled && !mTCPKeepaliveLongLivedEnabled;
#undef PREF_CHANGED
#undef MULTI_PREF_CHANGED
}
/**
* Allocates a C string into that contains a ISO 639 language list
* notated with HTTP "q" values for output with a HTTP Accept-Language
* header. Previous q values will be stripped because the order of
* the langs imply the q value. The q values are calculated by dividing
* 1.0 amongst the number of languages present.
*
* Ex: passing: "en, ja"
* returns: "en,ja;q=0.5"
*
* passing: "en, ja, fr_CA"
* returns: "en,ja;q=0.7,fr_CA;q=0.3"
*/
static nsresult PrepareAcceptLanguages(const char* i_AcceptLanguages,
nsACString& o_AcceptLanguages) {
if (!i_AcceptLanguages) return NS_OK;
const nsAutoCString ns_accept_languages(i_AcceptLanguages);
return rust_prepare_accept_languages(&ns_accept_languages,
&o_AcceptLanguages);
}
// Ensure that we've fetched the AcceptLanguages setting
/* static */
void nsHttpHandler::PresetAcceptLanguages() {
if (!gHttpHandler) {
RefPtr<nsHttpHandler> handler = nsHttpHandler::GetInstance();
Unused << handler.get();
}
[[maybe_unused]] nsresult rv = gHttpHandler->SetAcceptLanguages();
}
nsresult nsHttpHandler::SetAcceptLanguages() {
if (!NS_IsMainThread()) {
nsCOMPtr<nsIThread> mainThread;
nsresult rv = NS_GetMainThread(getter_AddRefs(mainThread));
if (NS_FAILED(rv)) {
return rv;
}
// Forward to the main thread synchronously.
SyncRunnable::DispatchToThread(
mainThread,
NS_NewRunnableFunction("nsHttpHandler::SetAcceptLanguages", [&rv]() {
rv = gHttpHandler->SetAcceptLanguages();
}));
return rv;
}
MOZ_ASSERT(NS_IsMainThread());
mAcceptLanguagesIsDirty = false;
nsAutoCString acceptLanguages;
Preferences::GetLocalizedCString(INTL_ACCEPT_LANGUAGES, acceptLanguages);
nsAutoCString buf;
nsresult rv = PrepareAcceptLanguages(acceptLanguages.get(), buf);
if (NS_SUCCEEDED(rv)) {
mAcceptLanguages.Assign(buf);
}
return rv;
}
nsresult nsHttpHandler::SetAcceptEncodings(const char* aAcceptEncodings,
bool isSecure) {
if (isSecure) {
mHttpsAcceptEncodings = aAcceptEncodings;
} else {
// use legacy list if a secure override is not specified
mHttpAcceptEncodings = aAcceptEncodings;
if (mHttpsAcceptEncodings.IsEmpty()) {
mHttpsAcceptEncodings = aAcceptEncodings;
}
}
return NS_OK;
}
//-----------------------------------------------------------------------------
// nsHttpHandler::nsISupports
//-----------------------------------------------------------------------------
NS_IMPL_ISUPPORTS(nsHttpHandler, nsIHttpProtocolHandler,
nsIProxiedProtocolHandler, nsIProtocolHandler, nsIObserver,
nsISupportsWeakReference, nsISpeculativeConnect)
//-----------------------------------------------------------------------------
// nsHttpHandler::nsIProtocolHandler
//-----------------------------------------------------------------------------
NS_IMETHODIMP
nsHttpHandler::GetScheme(nsACString& aScheme) {
aScheme.AssignLiteral("http");
return NS_OK;
}
NS_IMETHODIMP
nsHttpHandler::NewChannel(nsIURI* uri, nsILoadInfo* aLoadInfo,
nsIChannel** result) {
LOG(("nsHttpHandler::NewChannel\n"));
NS_ENSURE_ARG_POINTER(uri);
NS_ENSURE_ARG_POINTER(result);
// Verify that we have been given a valid scheme
if (!uri->SchemeIs("http") && !uri->SchemeIs("https")) {
NS_WARNING("Invalid URI scheme");
return NS_ERROR_UNEXPECTED;
}
return NewProxiedChannel(uri, nullptr, 0, nullptr, aLoadInfo, result);
}
NS_IMETHODIMP
nsHttpHandler::AllowPort(int32_t port, const char* scheme, bool* _retval) {
// don't override anything.
*_retval = false;
return NS_OK;
}
//-----------------------------------------------------------------------------
// nsHttpHandler::nsIProxiedProtocolHandler
//-----------------------------------------------------------------------------
nsresult nsHttpHandler::SetupChannelInternal(
HttpBaseChannel* aChannel, nsIURI* uri, nsIProxyInfo* givenProxyInfo,
uint32_t proxyResolveFlags, nsIURI* proxyURI, nsILoadInfo* aLoadInfo,
nsIChannel** result) {
RefPtr<HttpBaseChannel> httpChannel = aChannel;
nsCOMPtr<nsProxyInfo> proxyInfo;
if (givenProxyInfo) {
proxyInfo = do_QueryInterface(givenProxyInfo);
NS_ENSURE_ARG(proxyInfo);
}
uint32_t caps = mCapabilities;
uint64_t channelId;
nsresult rv = NewChannelId(channelId);
NS_ENSURE_SUCCESS(rv, rv);
rv = httpChannel->Init(uri, caps, proxyInfo, proxyResolveFlags, proxyURI,
channelId, aLoadInfo->GetExternalContentPolicyType(),
aLoadInfo);
if (NS_FAILED(rv)) return rv;
httpChannel.forget(result);
return NS_OK;
}
NS_IMETHODIMP
nsHttpHandler::NewProxiedChannel(nsIURI* uri, nsIProxyInfo* givenProxyInfo,
uint32_t proxyResolveFlags, nsIURI* proxyURI,
nsILoadInfo* aLoadInfo, nsIChannel** result) {
HttpBaseChannel* httpChannel;
LOG(("nsHttpHandler::NewProxiedChannel [proxyInfo=%p]\n", givenProxyInfo));
if (IsNeckoChild()) {
httpChannel = new HttpChannelChild();
} else {
// HACK: make sure PSM gets initialized on the main thread.
net_EnsurePSMInit();
httpChannel = new nsHttpChannel();
}
return SetupChannelInternal(httpChannel, uri, givenProxyInfo,
proxyResolveFlags, proxyURI, aLoadInfo, result);
}
nsresult nsHttpHandler::CreateTRRServiceChannel(
nsIURI* uri, nsIProxyInfo* givenProxyInfo, uint32_t proxyResolveFlags,
nsIURI* proxyURI, nsILoadInfo* aLoadInfo, nsIChannel** result) {
HttpBaseChannel* httpChannel = new TRRServiceChannel();
LOG(("nsHttpHandler::CreateTRRServiceChannel [proxyInfo=%p]\n",
givenProxyInfo));
return SetupChannelInternal(httpChannel, uri, givenProxyInfo,
proxyResolveFlags, proxyURI, aLoadInfo, result);
}
//-----------------------------------------------------------------------------
// nsHttpHandler::nsIHttpProtocolHandler
//-----------------------------------------------------------------------------
NS_IMETHODIMP
nsHttpHandler::GetUserAgent(nsACString& value) {
value = UserAgent(false);
return NS_OK;
}
NS_IMETHODIMP
nsHttpHandler::GetRfpUserAgent(nsACString& value) {
value = UserAgent(true);
return NS_OK;
}
NS_IMETHODIMP
nsHttpHandler::GetAppName(nsACString& value) {
value = mLegacyAppName;
return NS_OK;
}
NS_IMETHODIMP
nsHttpHandler::GetAppVersion(nsACString& value) {
value = mLegacyAppVersion;
return NS_OK;
}
NS_IMETHODIMP
nsHttpHandler::GetPlatform(nsACString& value) {
value = mPlatform;
return NS_OK;
}
NS_IMETHODIMP
nsHttpHandler::GetOscpu(nsACString& value) {
value = mOscpu;
return NS_OK;
}
NS_IMETHODIMP
nsHttpHandler::GetMisc(nsACString& value) {
value = mMisc;
return NS_OK;
}
NS_IMETHODIMP
nsHttpHandler::GetAltSvcCacheKeys(nsTArray<nsCString>& value) {
return mAltSvcCache->GetAltSvcCacheKeys(value);
}
NS_IMETHODIMP
nsHttpHandler::GetAuthCacheKeys(nsTArray<nsCString>& aValues) {
mAuthCache.CollectKeys(aValues);
mPrivateAuthCache.CollectKeys(aValues);
return NS_OK;
}
//-----------------------------------------------------------------------------
// nsHttpHandler::nsIObserver
//-----------------------------------------------------------------------------
NS_IMETHODIMP
nsHttpHandler::Observe(nsISupports* subject, const char* topic,
const char16_t* data) {
MOZ_ASSERT(NS_IsMainThread());
LOG(("nsHttpHandler::Observe [topic=\"%s\"]\n", topic));
nsresult rv;
if (!strcmp(topic, "profile-change-net-teardown") ||
!strcmp(topic, NS_XPCOM_SHUTDOWN_OBSERVER_ID)) {
mHandlerActive = false;
// clear cache of all authentication credentials.
mAuthCache.ClearAll();
mPrivateAuthCache.ClearAll();
if (mWifiTickler) mWifiTickler->Cancel();
// Inform nsIOService that network is tearing down.
gIOService->SetHttpHandlerAlreadyShutingDown();
ShutdownConnectionManager();
// need to reset the session start time since cache validation may
// depend on this value.
mSessionStartTime = NowInSeconds();
// Since nsHttpHandler::Observe() is also called in socket process, we don't
// want to do telemetry twice.
if (XRE_IsParentProcess()) {
if (!StaticPrefs::privacy_donottrackheader_enabled()) {
Telemetry::Accumulate(Telemetry::DNT_USAGE, 2);
} else {
Telemetry::Accumulate(Telemetry::DNT_USAGE, 1);
}
}
mActivityDistributor = nullptr;
} else if (!strcmp(topic, "profile-change-net-restore")) {
// initialize connection manager
rv = InitConnectionMgr();
MOZ_ASSERT(NS_SUCCEEDED(rv));
mAltSvcCache = MakeUnique<AltSvcCache>();
} else if (!strcmp(topic, "net:clear-active-logins")) {
mAuthCache.ClearAll();
mPrivateAuthCache.ClearAll();
} else if (!strcmp(topic, "net:cancel-all-connections")) {
if (mConnMgr) {
mConnMgr->AbortAndCloseAllConnections(0, nullptr);
}
} else if (!strcmp(topic, "net:prune-dead-connections")) {
if (mConnMgr) {
rv = mConnMgr->PruneDeadConnections();
if (NS_FAILED(rv)) {
LOG((" PruneDeadConnections failed (%08x)\n",
static_cast<uint32_t>(rv)));
}
}
} else if (!strcmp(topic, "net:prune-all-connections")) {
if (mConnMgr) {
rv = mConnMgr->DoShiftReloadConnectionCleanup();
if (NS_FAILED(rv)) {
LOG((" DoShiftReloadConnectionCleanup failed (%08x)\n",
static_cast<uint32_t>(rv)));
}
rv = mConnMgr->PruneDeadConnections();
if (NS_FAILED(rv)) {
LOG((" PruneDeadConnections failed (%08x)\n",
static_cast<uint32_t>(rv)));
}
}
#if 0
} else if (!strcmp(topic, "net:failed-to-process-uri-content")) {
// nop right now - we used to cancel h1 pipelines based on this,
// but those are no longer implemented
nsCOMPtr<nsIURI> uri = do_QueryInterface(subject);
#endif
} else if (!strcmp(topic, "last-pb-context-exited")) {
mPrivateAuthCache.ClearAll();
if (mAltSvcCache) {
mAltSvcCache->ClearAltServiceMappings();
}
nsCORSListenerProxy::ClearPrivateBrowsingCache();
} else if (!strcmp(topic, "browser:purge-session-history")) {
if (mConnMgr) {
Unused << mConnMgr->ClearConnectionHistory();
}
if (mAltSvcCache) {
mAltSvcCache->ClearAltServiceMappings();
}
} else if (!strcmp(topic, NS_NETWORK_LINK_TOPIC)) {
if (mConnMgr) {
rv = mConnMgr->PruneDeadConnections();
if (NS_FAILED(rv)) {
LOG((" PruneDeadConnections failed (%08x)\n",
static_cast<uint32_t>(rv)));
}
rv = mConnMgr->VerifyTraffic();
if (NS_FAILED(rv)) {
LOG((" VerifyTraffic failed (%08x)\n", static_cast<uint32_t>(rv)));
}
}
} else if (!strcmp(topic, "application-background")) {
// going to the background on android means we should close
// down idle connections for power conservation
if (mConnMgr) {
rv = mConnMgr->DoShiftReloadConnectionCleanup();
if (NS_FAILED(rv)) {
LOG((" DoShiftReloadConnectionCleanup failed (%08x)\n",
static_cast<uint32_t>(rv)));
}
}
} else if (!strcmp(topic, "net:current-browser-id")) {
// The window id will be updated by HttpConnectionMgrParent.
if (XRE_IsParentProcess()) {
nsCOMPtr<nsISupportsPRUint64> wrapper = do_QueryInterface(subject);
MOZ_RELEASE_ASSERT(wrapper);
uint64_t id = 0;
wrapper->GetData(&id);
MOZ_ASSERT(id);
static uint64_t sCurrentBrowserId = 0;
if (sCurrentBrowserId != id) {
sCurrentBrowserId = id;
if (mConnMgr) {
mConnMgr->UpdateCurrentBrowserId(sCurrentBrowserId);
}
}
}
} else if (!strcmp(topic, "intl:app-locales-changed")) {
// If the locale changed, there's a chance the accept language did too
mAcceptLanguagesIsDirty = true;
} else if (!strcmp(topic, "network:captive-portal-connectivity")) {
nsAutoCString data8 = NS_ConvertUTF16toUTF8(data);
mThroughCaptivePortal = data8.EqualsLiteral("captive");
} else if (!strcmp(topic, "network:reset-http3-excluded-list")) {
MutexAutoLock lock(mHttpExclusionLock);
mExcludedHttp3Origins.Clear();
} else if (!strcmp(topic, "network:socket-process-crashed")) {
ShutdownConnectionManager();
mConnMgr = nullptr;
Unused << InitConnectionMgr();
}
return NS_OK;
}
// nsISpeculativeConnect
nsresult nsHttpHandler::SpeculativeConnectInternal(
nsIURI* aURI, nsIPrincipal* aPrincipal,
Maybe<OriginAttributes>&& aOriginAttributes,
nsIInterfaceRequestor* aCallbacks, bool anonymous) {
if (IsNeckoChild()) {
gNeckoChild->SendSpeculativeConnect(
aURI, aPrincipal, std::move(aOriginAttributes), anonymous);
return NS_OK;
}
if (!mHandlerActive) return NS_OK;
MOZ_ASSERT(NS_IsMainThread());
nsISiteSecurityService* sss = gHttpHandler->GetSSService();
bool isStsHost = false;
if (!sss) return NS_OK;
nsCOMPtr<nsILoadContext> loadContext = do_GetInterface(aCallbacks);
OriginAttributes originAttributes;
// If the principal is given, we use the originAttributes from this
// principal. Otherwise, we use the originAttributes from the loadContext.
if (aOriginAttributes) {
originAttributes = std::move(aOriginAttributes.ref());
} else if (aPrincipal) {
originAttributes = aPrincipal->OriginAttributesRef();
} else if (loadContext) {
loadContext->GetOriginAttributes(originAttributes);
}
nsCOMPtr<nsIURI> clone;
if (NS_SUCCEEDED(sss->IsSecureURI(aURI, originAttributes, &isStsHost)) &&
isStsHost) {
if (NS_SUCCEEDED(NS_GetSecureUpgradedURI(aURI, getter_AddRefs(clone)))) {
aURI = clone.get();
// (NOTE: We better make sure |clone| stays alive until the end
// of the function now, since our aURI arg now points to it!)
}
}
if (!aOriginAttributes) {
// We must update the originAttributes with the network state first party
// domain **after** we upgrade aURI to https.
// Otherwise the speculative connection will be keyed by a http URL
// and end up not being used.
StoragePrincipalHelper::UpdateOriginAttributesForNetworkState(
aURI, originAttributes);
}
nsAutoCString scheme;
nsresult rv = aURI->GetScheme(scheme);
if (NS_FAILED(rv)) return rv;
// If this is HTTPS, make sure PSM is initialized as the channel
// creation path may have been bypassed
if (scheme.EqualsLiteral("https")) {
if (!IsNeckoChild()) {
// make sure PSM gets initialized on the main thread.
net_EnsurePSMInit();
}
}
// Ensure that this is HTTP or HTTPS, otherwise we don't do preconnect here
else if (!scheme.EqualsLiteral("http")) {
return NS_ERROR_UNEXPECTED;
}
nsAutoCString host;
rv = aURI->GetAsciiHost(host);
if (NS_FAILED(rv)) return rv;
int32_t port = -1;
rv = aURI->GetPort(&port);
if (NS_FAILED(rv)) return rv;
nsAutoCString username;
aURI->GetUsername(username);
RefPtr<nsHttpConnectionInfo> ci =
new nsHttpConnectionInfo(host, port, ""_ns, username, nullptr,
originAttributes, aURI->SchemeIs("https"));
ci->SetAnonymous(anonymous);
if (originAttributes.mPrivateBrowsingId > 0) {
ci->SetPrivate(true);
}
if (mDebugObservations) {
// this is basically used for test coverage of an otherwise 'hintable'
// feature
nsCOMPtr<nsIObserverService> obsService = services::GetObserverService();
if (obsService) {
// This is used to test if the speculative connection has the right
// connection info.
nsPrintfCString debugHashKey("%s", ci->HashKey().get());
obsService->NotifyObservers(nullptr, "speculative-connect-request",
NS_ConvertUTF8toUTF16(debugHashKey).get());
for (auto* cp :
dom::ContentParent::AllProcesses(dom::ContentParent::eLive)) {
PNeckoParent* neckoParent =
SingleManagedOrNull(cp->ManagedPNeckoParent());
if (!neckoParent) {
continue;
}
Unused << neckoParent->SendSpeculativeConnectRequest();
}
}
}
return SpeculativeConnect(ci, aCallbacks);
}
NS_IMETHODIMP
nsHttpHandler::SpeculativeConnect(nsIURI* aURI, nsIPrincipal* aPrincipal,
nsIInterfaceRequestor* aCallbacks,
bool aAnonymous) {
return SpeculativeConnectInternal(aURI, aPrincipal, Nothing(), aCallbacks,
aAnonymous);
}
NS_IMETHODIMP nsHttpHandler::SpeculativeConnectWithOriginAttributes(
nsIURI* aURI, JS::Handle<JS::Value> aOriginAttributes,
nsIInterfaceRequestor* aCallbacks, bool aAnonymous, JSContext* aCx) {
OriginAttributes attrs;
if (!aOriginAttributes.isObject() || !attrs.Init(aCx, aOriginAttributes)) {
return NS_ERROR_INVALID_ARG;
}
SpeculativeConnectWithOriginAttributesNative(aURI, std::move(attrs),
aCallbacks, aAnonymous);
return NS_OK;
}
NS_IMETHODIMP_(void)
nsHttpHandler::SpeculativeConnectWithOriginAttributesNative(
nsIURI* aURI, OriginAttributes&& aOriginAttributes,
nsIInterfaceRequestor* aCallbacks, bool aAnonymous) {
Maybe<OriginAttributes> originAttributes;
originAttributes.emplace(aOriginAttributes);
Unused << SpeculativeConnectInternal(
aURI, nullptr, std::move(originAttributes), aCallbacks, aAnonymous);
}
void nsHttpHandler::TickleWifi(nsIInterfaceRequestor* cb) {
if (!cb || !mWifiTickler) return;
// If B2G requires a similar mechanism nsINetworkManager, currently only avail
// on B2G, contains the necessary information on wifi and gateway
nsCOMPtr<nsIDOMWindow> domWindow = do_GetInterface(cb);
nsCOMPtr<nsPIDOMWindowOuter> piWindow = do_QueryInterface(domWindow);
if (!piWindow) return;
RefPtr<dom::Navigator> navigator = piWindow->GetNavigator();
if (!navigator) return;
RefPtr<dom::network::Connection> networkProperties =
navigator->GetConnection(IgnoreErrors());
if (!networkProperties) return;
uint32_t gwAddress = networkProperties->GetDhcpGateway();
bool isWifi = networkProperties->GetIsWifi();
if (!gwAddress || !isWifi) return;
mWifiTickler->SetIPV4Address(gwAddress);
mWifiTickler->Tickle();
}
//-----------------------------------------------------------------------------
// nsHttpsHandler implementation
//-----------------------------------------------------------------------------
NS_IMPL_ISUPPORTS(nsHttpsHandler, nsIHttpProtocolHandler,
nsIProxiedProtocolHandler, nsIProtocolHandler,
nsISupportsWeakReference, nsISpeculativeConnect)
nsresult nsHttpsHandler::Init() {
nsCOMPtr<nsIProtocolHandler> httpHandler(
do_GetService(NS_NETWORK_PROTOCOL_CONTRACTID_PREFIX "http"));
MOZ_ASSERT(httpHandler.get() != nullptr);
return NS_OK;
}
NS_IMETHODIMP
nsHttpsHandler::GetScheme(nsACString& aScheme) {
aScheme.AssignLiteral("https");
return NS_OK;
}
NS_IMETHODIMP
nsHttpsHandler::NewChannel(nsIURI* aURI, nsILoadInfo* aLoadInfo,
nsIChannel** _retval) {
MOZ_ASSERT(gHttpHandler);
if (!gHttpHandler) return NS_ERROR_UNEXPECTED;
return gHttpHandler->NewChannel(aURI, aLoadInfo, _retval);
}
NS_IMETHODIMP
nsHttpsHandler::AllowPort(int32_t aPort, const char* aScheme, bool* _retval) {
// don't override anything.
*_retval = false;
return NS_OK;
}
NS_IMETHODIMP
nsHttpHandler::EnsureHSTSDataReadyNative(
RefPtr<mozilla::net::HSTSDataCallbackWrapper> aCallback) {
MOZ_ASSERT(NS_IsMainThread());
nsCOMPtr<nsIURI> uri;
nsresult rv = NS_NewURI(getter_AddRefs(uri), "http://example.com");
NS_ENSURE_SUCCESS(rv, rv);
bool shouldUpgrade = false;
bool willCallback = false;
OriginAttributes originAttributes;
auto func = [callback(aCallback)](bool aResult, nsresult aStatus) {
callback->DoCallback(aResult);
};
rv = NS_ShouldSecureUpgrade(uri, nullptr, nullptr, false, originAttributes,
shouldUpgrade, std::move(func), willCallback);
if (NS_FAILED(rv) || !willCallback) {
aCallback->DoCallback(false);
return rv;
}
return rv;
}
NS_IMETHODIMP
nsHttpHandler::EnsureHSTSDataReady(JSContext* aCx, Promise** aPromise) {
if (NS_WARN_IF(!aCx)) {
return NS_ERROR_FAILURE;
}
nsIGlobalObject* globalObject = xpc::CurrentNativeGlobal(aCx);
if (NS_WARN_IF(!globalObject)) {
return NS_ERROR_FAILURE;
}
ErrorResult result;
RefPtr<Promise> promise = Promise::Create(globalObject, result);
if (NS_WARN_IF(result.Failed())) {
return result.StealNSResult();
}
if (IsNeckoChild()) {
gNeckoChild->SendEnsureHSTSData()->Then(
GetMainThreadSerialEventTarget(), __func__,
[promise(promise)](
NeckoChild::EnsureHSTSDataPromise::ResolveOrRejectValue&& aResult) {
if (aResult.IsResolve()) {
promise->MaybeResolve(aResult.ResolveValue());
} else {
promise->MaybeReject(NS_ERROR_FAILURE);
}
});
promise.forget(aPromise);
return NS_OK;
}
auto callback = [promise(promise)](bool aResult) {
promise->MaybeResolve(aResult);
};
RefPtr<HSTSDataCallbackWrapper> wrapper =
new HSTSDataCallbackWrapper(std::move(callback));
promise.forget(aPromise);
return EnsureHSTSDataReadyNative(wrapper);
}
NS_IMETHODIMP
nsHttpHandler::ClearCORSPreflightCache() {
nsCORSListenerProxy::ClearCache();
return NS_OK;
}
void nsHttpHandler::ShutdownConnectionManager() {
// ensure connection manager is shutdown
if (mConnMgr) {
nsresult rv = mConnMgr->Shutdown();
if (NS_FAILED(rv)) {
LOG(
("nsHttpHandler::ShutdownConnectionManager\n"
" failed to shutdown connection manager\n"));
}
}
}
nsresult nsHttpHandler::NewChannelId(uint64_t& channelId) {
channelId =
// channelId is sometimes passed to JavaScript code (e.g. devtools),
// and since on Linux PID_MAX_LIMIT is 2^22 we cannot
// shift PID more than 31 bits left. Otherwise resulting values
// will be exceed safe JavaScript integer range.
((static_cast<uint64_t>(mProcessId) << 31) & 0xFFFFFFFF80000000LL) |
mNextChannelId++;
return NS_OK;
}
void nsHttpHandler::NotifyActiveTabLoadOptimization() {
SetLastActiveTabLoadOptimizationHit(TimeStamp::Now());
}
TimeStamp nsHttpHandler::GetLastActiveTabLoadOptimizationHit() {
MutexAutoLock lock(mLastActiveTabLoadOptimizationLock);
return mLastActiveTabLoadOptimizationHit;
}
void nsHttpHandler::SetLastActiveTabLoadOptimizationHit(TimeStamp const& when) {
MutexAutoLock lock(mLastActiveTabLoadOptimizationLock);
if (mLastActiveTabLoadOptimizationHit.IsNull() ||
(!when.IsNull() && mLastActiveTabLoadOptimizationHit < when)) {
mLastActiveTabLoadOptimizationHit = when;
}
}
bool nsHttpHandler::IsBeforeLastActiveTabLoadOptimization(
TimeStamp const& when) {
MutexAutoLock lock(mLastActiveTabLoadOptimizationLock);
return !mLastActiveTabLoadOptimizationHit.IsNull() &&
when <= mLastActiveTabLoadOptimizationHit;
}
void nsHttpHandler::ExcludeHttp2OrHttp3Internal(
const nsHttpConnectionInfo* ci) {
LOG(("nsHttpHandler::ExcludeHttp2OrHttp3Internal ci=%s",
ci->HashKey().get()));
// The excluded list needs to be stayed synced between parent process and
// socket process, so we send this information to the parent process here.
if (XRE_IsSocketProcess()) {
MOZ_ASSERT(OnSocketThread());
RefPtr<nsHttpConnectionInfo> cinfo = ci->Clone();
NS_DispatchToMainThread(NS_NewRunnableFunction(
"nsHttpHandler::ExcludeHttp2OrHttp3Internal",
[cinfo{std::move(cinfo)}]() {
HttpConnectionInfoCloneArgs connInfoArgs;
nsHttpConnectionInfo::SerializeHttpConnectionInfo(cinfo,
connInfoArgs);
Unused << SocketProcessChild::GetSingleton()->SendExcludeHttp2OrHttp3(
connInfoArgs);
}));
}
MOZ_ASSERT_IF(nsIOService::UseSocketProcess() && XRE_IsParentProcess(),
NS_IsMainThread());
MOZ_ASSERT_IF(!nsIOService::UseSocketProcess(), OnSocketThread());
if (ci->IsHttp3()) {
if (!mExcludedHttp3Origins.Contains(ci->GetRoutedHost())) {
MutexAutoLock lock(mHttpExclusionLock);
mExcludedHttp3Origins.Insert(ci->GetRoutedHost());
}
mConnMgr->ExcludeHttp3(ci);
} else {
if (!mExcludedHttp2Origins.Contains(ci->GetOrigin())) {
MutexAutoLock lock(mHttpExclusionLock);
mExcludedHttp2Origins.Insert(ci->GetOrigin());
}
mConnMgr->ExcludeHttp2(ci);
}
}
void nsHttpHandler::ExcludeHttp2(const nsHttpConnectionInfo* ci) {
ExcludeHttp2OrHttp3Internal(ci);
}
bool nsHttpHandler::IsHttp2Excluded(const nsHttpConnectionInfo* ci) {
MutexAutoLock lock(mHttpExclusionLock);
return mExcludedHttp2Origins.Contains(ci->GetOrigin());
}
void nsHttpHandler::ExcludeHttp3(const nsHttpConnectionInfo* ci) {
MOZ_ASSERT(ci->IsHttp3());
ExcludeHttp2OrHttp3Internal(ci);
}
bool nsHttpHandler::IsHttp3Excluded(const nsACString& aRoutedHost) {
MutexAutoLock lock(mHttpExclusionLock);
return mExcludedHttp3Origins.Contains(aRoutedHost);
}
HttpTrafficAnalyzer* nsHttpHandler::GetHttpTrafficAnalyzer() {
MOZ_ASSERT(OnSocketThread(), "not on socket thread");
if (!StaticPrefs::network_traffic_analyzer_enabled()) {
return nullptr;
}
return &mHttpTrafficAnalyzer;
}
bool nsHttpHandler::IsHttp3Enabled() {
static const uint32_t TLS3_PREF_VALUE = 4;
return StaticPrefs::network_http_http3_enable() &&
(StaticPrefs::security_tls_version_max() >= TLS3_PREF_VALUE);
}
bool nsHttpHandler::IsHttp3VersionSupported(const nsACString& version) {
if (!StaticPrefs::network_http_http3_support_version1() &&
version.EqualsLiteral("h3")) {
return false;
}
for (uint32_t i = 0; i < kHttp3VersionCount; i++) {
if (version.Equals(kHttp3Versions[i])) {
return true;
}
}
return false;
}
bool nsHttpHandler::IsHttp3SupportedByServer(
nsHttpResponseHead* aResponseHead) {
if ((aResponseHead->Version() != HttpVersion::v2_0) ||
(aResponseHead->Status() >= 500) || (aResponseHead->Status() == 421)) {
return false;
}
nsAutoCString altSvc;
Unused << aResponseHead->GetHeader(nsHttp::Alternate_Service, altSvc);
if (altSvc.IsEmpty() || !nsHttp::IsReasonableHeaderValue(altSvc)) {
return false;
}
for (uint32_t i = 0; i < kHttp3VersionCount; i++) {
nsAutoCString value(kHttp3Versions[i]);
value.Append("="_ns);
if (strstr(altSvc.get(), value.get())) {
return true;
}
}
return false;
}
nsresult nsHttpHandler::InitiateTransaction(HttpTransactionShell* aTrans,
int32_t aPriority) {
return mConnMgr->AddTransaction(aTrans, aPriority);
}
nsresult nsHttpHandler::InitiateTransactionWithStickyConn(
HttpTransactionShell* aTrans, int32_t aPriority,
HttpTransactionShell* aTransWithStickyConn) {
return mConnMgr->AddTransactionWithStickyConn(aTrans, aPriority,
aTransWithStickyConn);
}
nsresult nsHttpHandler::RescheduleTransaction(HttpTransactionShell* trans,
int32_t priority) {
return mConnMgr->RescheduleTransaction(trans, priority);
}
void nsHttpHandler::UpdateClassOfServiceOnTransaction(
HttpTransactionShell* trans, const ClassOfService& classOfService) {
mConnMgr->UpdateClassOfServiceOnTransaction(trans, classOfService);
}
nsresult nsHttpHandler::CancelTransaction(HttpTransactionShell* trans,
nsresult reason) {
return mConnMgr->CancelTransaction(trans, reason);
}
void nsHttpHandler::AddHttpChannel(uint64_t aId, nsISupports* aChannel) {
MOZ_ASSERT(XRE_IsParentProcess());
MOZ_ASSERT(NS_IsMainThread());
nsWeakPtr channel(do_GetWeakReference(aChannel));
mIDToHttpChannelMap.InsertOrUpdate(aId, std::move(channel));
}
void nsHttpHandler::RemoveHttpChannel(uint64_t aId) {
MOZ_ASSERT(XRE_IsParentProcess());
if (!NS_IsMainThread()) {
nsCOMPtr<nsIRunnable> idleRunnable(NewCancelableRunnableMethod<uint64_t>(
"nsHttpHandler::RemoveHttpChannel", this,
&nsHttpHandler::RemoveHttpChannel, aId));
NS_DispatchToMainThreadQueue(do_AddRef(idleRunnable),
EventQueuePriority::Idle);
return;
}
auto entry = mIDToHttpChannelMap.Lookup(aId);
if (entry) {
entry.Remove();
}
}
nsWeakPtr nsHttpHandler::GetWeakHttpChannel(uint64_t aId) {
MOZ_ASSERT(XRE_IsParentProcess());
MOZ_ASSERT(NS_IsMainThread());
return mIDToHttpChannelMap.Get(aId);
}
nsresult nsHttpHandler::CompleteUpgrade(
HttpTransactionShell* aTrans, nsIHttpUpgradeListener* aUpgradeListener) {
return mConnMgr->CompleteUpgrade(aTrans, aUpgradeListener);
}
nsresult nsHttpHandler::DoShiftReloadConnectionCleanupWithConnInfo(
nsHttpConnectionInfo* aCi) {
MOZ_ASSERT(aCi);
return mConnMgr->DoShiftReloadConnectionCleanupWithConnInfo(aCi);
}
void nsHttpHandler::ClearHostMapping(nsHttpConnectionInfo* aConnInfo) {
if (XRE_IsSocketProcess()) {
AltServiceChild::ClearHostMapping(aConnInfo);
return;
}
AltServiceCache()->ClearHostMapping(aConnInfo);
}
void nsHttpHandler::SetHttpHandlerInitArgs(const HttpHandlerInitArgs& aArgs) {
MOZ_ASSERT(XRE_IsSocketProcess());
mLegacyAppName = aArgs.mLegacyAppName();
mLegacyAppVersion = aArgs.mLegacyAppVersion();
mPlatform = aArgs.mPlatform();
mOscpu = aArgs.mOscpu();
mMisc = aArgs.mMisc();
mProduct = aArgs.mProduct();
mProductSub = aArgs.mProductSub();
mAppName = aArgs.mAppName();
mAppVersion = aArgs.mAppVersion();
mCompatFirefox = aArgs.mCompatFirefox();
mCompatDevice = aArgs.mCompatDevice();
mDeviceModelId = aArgs.mDeviceModelId();
}
void nsHttpHandler::SetDeviceModelId(const nsACString& aModelId) {
MOZ_ASSERT(XRE_IsSocketProcess());
mDeviceModelId = aModelId;
}
void nsHttpHandler::MaybeAddAltSvcForTesting(
nsIURI* aUri, const nsACString& aUsername, bool aPrivateBrowsing,
nsIInterfaceRequestor* aCallbacks,
const OriginAttributes& aOriginAttributes) {
if (!IsHttp3Enabled() || mAltSvcMappingTemptativeMap.IsEmpty()) {
return;
}
bool isHttps = false;
if (NS_FAILED(aUri->SchemeIs("https", &isHttps)) || !isHttps) {
// Only set for HTTPS.
return;
}
nsAutoCString originHost;
if (NS_FAILED(aUri->GetAsciiHost(originHost))) {
return;
}
nsCString* map = mAltSvcMappingTemptativeMap.Get(originHost);
if (map) {
int32_t originPort = 80;
aUri->GetPort(&originPort);
LOG(("nsHttpHandler::MaybeAddAltSvcForTesting for %s map: %s",
originHost.get(), PromiseFlatCString(*map).get()));
AltSvcMapping::ProcessHeader(
*map, nsCString("https"), originHost, originPort, aUsername,
aPrivateBrowsing, aCallbacks, nullptr, 0, aOriginAttributes, true);
}
}
bool nsHttpHandler::UseHTTPSRRAsAltSvcEnabled() const {
return StaticPrefs::network_dns_use_https_rr_as_altsvc();
}
bool nsHttpHandler::EchConfigEnabled(bool aIsHttp3) const {
if (mParentalControlEnabled) {
return false;
}
if (!aIsHttp3) {
return StaticPrefs::network_dns_echconfig_enabled();
}
return StaticPrefs::network_dns_http3_echconfig_enabled();
}
bool nsHttpHandler::FallbackToOriginIfConfigsAreECHAndAllFailed() const {
return StaticPrefs::
network_dns_echconfig_fallback_to_origin_when_all_failed();
}
void nsHttpHandler::ExcludeHTTPSRRHost(const nsACString& aHost) {
MOZ_ASSERT(NS_IsMainThread());
mExcludedHostsForHTTPSRRUpgrade.Insert(aHost);
}
bool nsHttpHandler::IsHostExcludedForHTTPSRR(const nsACString& aHost) {
MOZ_ASSERT(NS_IsMainThread());
return mExcludedHostsForHTTPSRRUpgrade.Contains(aHost);
}
void nsHttpHandler::Exclude0RttTcp(const nsHttpConnectionInfo* ci) {
MOZ_ASSERT(OnSocketThread());
if (!StaticPrefs::network_http_early_data_disable_on_error() ||
(mExcluded0RttTcpOrigins.Count() >=
StaticPrefs::network_http_early_data_max_error())) {
return;
}
mExcluded0RttTcpOrigins.Insert(ci->GetOrigin());
}
bool nsHttpHandler::Is0RttTcpExcluded(const nsHttpConnectionInfo* ci) {
MOZ_ASSERT(OnSocketThread());
if (!StaticPrefs::network_http_early_data_disable_on_error()) {
return false;
}
if (mExcluded0RttTcpOrigins.Count() >=
StaticPrefs::network_http_early_data_max_error()) {
return true;
}
return mExcluded0RttTcpOrigins.Contains(ci->GetOrigin());
}
bool nsHttpHandler::HttpActivityDistributorActivated() {
if (!mActivityDistributor) {
return false;
}
return mActivityDistributor->Activated();
}
void nsHttpHandler::ObserveHttpActivityWithArgs(
const HttpActivityArgs& aArgs, uint32_t aActivityType,
uint32_t aActivitySubtype, PRTime aTimestamp, uint64_t aExtraSizeData,
const nsACString& aExtraStringData) {
if (!HttpActivityDistributorActivated()) {
return;
}
if (aActivitySubtype == NS_HTTP_ACTIVITY_SUBTYPE_PROXY_RESPONSE_HEADER &&
!mActivityDistributor->ObserveProxyResponseEnabled()) {
return;
}
if (aActivityType == NS_ACTIVITY_TYPE_HTTP_CONNECTION &&
!mActivityDistributor->ObserveConnectionEnabled()) {
return;
}
Unused << mActivityDistributor->ObserveActivityWithArgs(
aArgs, aActivityType, aActivitySubtype, aTimestamp, aExtraSizeData,
aExtraStringData);
}
} // namespace mozilla::net
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