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LoadInfo.cpp
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/LoadInfo.h"
#include "js/Array.h" // JS::NewArrayObject
#include "mozilla/Assertions.h"
#include "mozilla/ExpandedPrincipal.h"
#include "mozilla/dom/CanonicalBrowsingContext.h"
#include "mozilla/dom/ClientIPCTypes.h"
#include "mozilla/dom/ClientSource.h"
#include "mozilla/dom/Performance.h"
#include "mozilla/dom/PerformanceStorage.h"
#include "mozilla/dom/BrowserChild.h"
#include "mozilla/dom/ToJSValue.h"
#include "mozilla/dom/BrowsingContext.h"
#include "mozilla/net/CookieJarSettings.h"
#include "mozilla/NullPrincipal.h"
#include "mozilla/StaticPrefs_network.h"
#include "mozilla/StaticPrefs_security.h"
#include "mozIThirdPartyUtil.h"
#include "ThirdPartyUtil.h"
#include "nsFrameLoader.h"
#include "nsFrameLoaderOwner.h"
#include "nsIContentSecurityPolicy.h"
#include "nsIDocShell.h"
#include "mozilla/dom/Document.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsIScriptElement.h"
#include "nsISupportsImpl.h"
#include "nsISupportsUtils.h"
#include "nsIXPConnect.h"
#include "nsDocShell.h"
#include "nsGlobalWindow.h"
#include "nsMixedContentBlocker.h"
#include "nsQueryObject.h"
#include "nsRedirectHistoryEntry.h"
#include "nsSandboxFlags.h"
#include "nsICookieService.h"
using namespace mozilla::dom;
namespace mozilla {
namespace net {
static uint64_t FindTopOuterWindowID(nsPIDOMWindowOuter* aOuter) {
nsCOMPtr<nsPIDOMWindowOuter> outer = aOuter;
while (nsCOMPtr<nsPIDOMWindowOuter> parent =
outer->GetInProcessScriptableParentOrNull()) {
outer = parent;
}
return outer->WindowID();
}
static nsContentPolicyType InternalContentPolicyTypeForFrame(
CanonicalBrowsingContext* aBrowsingContext) {
const auto& maybeEmbedderElementType =
aBrowsingContext->GetEmbedderElementType();
MOZ_ASSERT(maybeEmbedderElementType.isSome());
auto embedderElementType = maybeEmbedderElementType.value();
// Assign same type as in nsDocShell::DetermineContentType.
// N.B. internal content policy type will never be TYPE_DOCUMENT
return embedderElementType.EqualsLiteral("iframe")
? nsIContentPolicy::TYPE_INTERNAL_IFRAME
: nsIContentPolicy::TYPE_INTERNAL_FRAME;
}
LoadInfo::LoadInfo(
nsIPrincipal* aLoadingPrincipal, nsIPrincipal* aTriggeringPrincipal,
nsINode* aLoadingContext, nsSecurityFlags aSecurityFlags,
nsContentPolicyType aContentPolicyType,
const Maybe<mozilla::dom::ClientInfo>& aLoadingClientInfo,
const Maybe<mozilla::dom::ServiceWorkerDescriptor>& aController,
uint32_t aSandboxFlags)
: mLoadingPrincipal(aLoadingContext ? aLoadingContext->NodePrincipal()
: aLoadingPrincipal),
mTriggeringPrincipal(aTriggeringPrincipal ? aTriggeringPrincipal
: mLoadingPrincipal.get()),
mPrincipalToInherit(nullptr),
mClientInfo(aLoadingClientInfo),
mController(aController),
mLoadingContext(do_GetWeakReference(aLoadingContext)),
mContextForTopLevelLoad(nullptr),
mSecurityFlags(aSecurityFlags),
mSandboxFlags(aSandboxFlags),
mInternalContentPolicyType(aContentPolicyType),
mTainting(LoadTainting::Basic),
mBlockAllMixedContent(false),
mUpgradeInsecureRequests(false),
mBrowserUpgradeInsecureRequests(false),
mBrowserWouldUpgradeInsecureRequests(false),
mForceAllowDataURI(false),
mAllowInsecureRedirectToDataURI(false),
mBypassCORSChecks(false),
mSkipContentPolicyCheckForWebRequest(false),
mOriginalFrameSrcLoad(false),
mForceInheritPrincipalDropped(false),
mInnerWindowID(0),
mOuterWindowID(0),
mParentOuterWindowID(0),
mTopOuterWindowID(0),
mFrameOuterWindowID(0),
mBrowsingContextID(0),
mFrameBrowsingContextID(0),
mInitialSecurityCheckDone(false),
mIsThirdPartyContext(false),
mIsThirdPartyContextToTopWindow(true),
mIsFormSubmission(false),
mSendCSPViolationEvents(true),
mRequestBlockingReason(BLOCKING_REASON_NONE),
mForcePreflight(false),
mIsPreflight(false),
mLoadTriggeredFromExternal(false),
mServiceWorkerTaintingSynthesized(false),
mDocumentHasUserInteracted(false),
mDocumentHasLoaded(false),
mAllowListFutureDocumentsCreatedFromThisRedirectChain(false),
mSkipContentSniffing(false),
mHttpsOnlyStatus(nsILoadInfo::HTTPS_ONLY_UNINITIALIZED),
mHasValidUserGestureActivation(false),
mAllowDeprecatedSystemRequests(false),
mIsInDevToolsContext(false),
mParserCreatedScript(false),
mHasStoragePermission(false),
mIsFromProcessingFrameAttributes(false),
mLoadingEmbedderPolicy(nsILoadInfo::EMBEDDER_POLICY_NULL) {
MOZ_ASSERT(mLoadingPrincipal);
MOZ_ASSERT(mTriggeringPrincipal);
#ifdef DEBUG
// TYPE_DOCUMENT loads initiated by javascript tests will go through
// nsIOService and use the wrong constructor. Don't enforce the
// !TYPE_DOCUMENT check in those cases
bool skipContentTypeCheck = false;
skipContentTypeCheck =
Preferences::GetBool("network.loadinfo.skip_type_assertion");
#endif
// This constructor shouldn't be used for TYPE_DOCUMENT loads that don't
// have a loadingPrincipal
MOZ_ASSERT(skipContentTypeCheck || mLoadingPrincipal ||
mInternalContentPolicyType != nsIContentPolicy::TYPE_DOCUMENT);
// We should only get an explicit controller for subresource requests.
MOZ_DIAGNOSTIC_ASSERT(aController.isNothing() ||
!nsContentUtils::IsNonSubresourceInternalPolicyType(
mInternalContentPolicyType));
// TODO(bug 1259873): Above, we initialize mIsThirdPartyContext to false
// meaning that consumers of LoadInfo that don't pass a context or pass a
// context from which we can't find a window will default to assuming that
// they're 1st party. It would be nice if we could default "safe" and assume
// that we are 3rd party until proven otherwise.
// if consumers pass both, aLoadingContext and aLoadingPrincipal
// then the loadingPrincipal must be the same as the node's principal
MOZ_ASSERT(!aLoadingContext || !aLoadingPrincipal ||
aLoadingContext->NodePrincipal() == aLoadingPrincipal);
// if the load is sandboxed, we can not also inherit the principal
if (mSandboxFlags & SANDBOXED_ORIGIN) {
mForceInheritPrincipalDropped =
(mSecurityFlags & nsILoadInfo::SEC_FORCE_INHERIT_PRINCIPAL);
mSecurityFlags &= ~nsILoadInfo::SEC_FORCE_INHERIT_PRINCIPAL;
}
uint32_t externalType =
nsContentUtils::InternalContentPolicyTypeToExternal(aContentPolicyType);
if (aLoadingContext) {
// Ensure that all network requests for a window client have the ClientInfo
// properly set. Workers must currently pass the loading ClientInfo
// explicitly. We allow main thread requests to explicitly pass the value as
// well.
if (mClientInfo.isNothing()) {
mClientInfo = aLoadingContext->OwnerDoc()->GetClientInfo();
}
// For subresource loads set the service worker based on the calling
// context's controller. Workers must currently pass the controller in
// explicitly. We allow main thread requests to explicitly pass the value
// as well, but otherwise extract from the loading context here.
if (mController.isNothing() &&
!nsContentUtils::IsNonSubresourceInternalPolicyType(
mInternalContentPolicyType)) {
mController = aLoadingContext->OwnerDoc()->GetController();
}
nsCOMPtr<nsPIDOMWindowOuter> contextOuter =
aLoadingContext->OwnerDoc()->GetWindow();
if (contextOuter) {
ComputeIsThirdPartyContext(contextOuter);
mOuterWindowID = contextOuter->WindowID();
nsCOMPtr<nsPIDOMWindowOuter> parent =
contextOuter->GetInProcessScriptableParent();
mParentOuterWindowID = parent ? parent->WindowID() : mOuterWindowID;
mTopOuterWindowID = FindTopOuterWindowID(contextOuter);
RefPtr<dom::BrowsingContext> bc = contextOuter->GetBrowsingContext();
MOZ_ASSERT(bc);
mBrowsingContextID = bc->Id();
nsGlobalWindowInner* innerWindow =
nsGlobalWindowInner::Cast(contextOuter->GetCurrentInnerWindow());
if (innerWindow) {
mTopLevelPrincipal = innerWindow->GetTopLevelAntiTrackingPrincipal();
// The top-level-storage-area-principal is not null only for the first
// level of iframes (null for top-level contexts, and null for
// sub-iframes). If we are loading a sub-document resource, we must
// calculate what the top-level-storage-area-principal will be for the
// new context.
if (externalType != nsIContentPolicy::TYPE_SUBDOCUMENT) {
mTopLevelStorageAreaPrincipal =
innerWindow->GetTopLevelStorageAreaPrincipal();
} else if (bc->IsTop()) {
Document* doc = innerWindow->GetExtantDoc();
if (!doc || (!doc->StorageAccessSandboxed())) {
mTopLevelStorageAreaPrincipal = innerWindow->GetPrincipal();
}
// If this is the first level iframe, innerWindow is our top-level
// principal.
if (!mTopLevelPrincipal) {
mTopLevelPrincipal = innerWindow->GetPrincipal();
}
}
mDocumentHasLoaded = innerWindow->IsDocumentLoaded();
if (bc->IsFrame()) {
// For resources within iframes, we actually want the
// top-level document's flag, not the iframe document's.
mDocumentHasLoaded = false;
// FIXME: This is not Fission-compatible. The flag needs to be moved
// from the document to the WindowContext, and the check updated
// accordingly.
nsGlobalWindowOuter* topOuter =
innerWindow->GetInProcessScriptableTopInternal();
if (topOuter) {
nsGlobalWindowInner* topInner =
nsGlobalWindowInner::Cast(topOuter->GetCurrentInnerWindow());
if (topInner) {
mDocumentHasLoaded = topInner->IsDocumentLoaded();
}
}
}
}
// Let's inherit the cookie behavior and permission from the parent
// document.
mCookieJarSettings = aLoadingContext->OwnerDoc()->CookieJarSettings();
}
mInnerWindowID = aLoadingContext->OwnerDoc()->InnerWindowID();
RefPtr<WindowContext> ctx = WindowContext::GetById(mInnerWindowID);
if (ctx) {
mLoadingEmbedderPolicy = ctx->GetEmbedderPolicy();
}
mDocumentHasUserInteracted =
aLoadingContext->OwnerDoc()->UserHasInteracted();
// Inherit HTTPS-Only Mode flags from parent document
mHttpsOnlyStatus |= aLoadingContext->OwnerDoc()->HttpsOnlyStatus();
// When the element being loaded is a frame, we choose the frame's window
// for the window ID and the frame element's window as the parent
// window. This is the behavior that Chrome exposes to add-ons.
// NB: If the frameLoaderOwner doesn't have a frame loader, then the load
// must be coming from an object (such as a plugin) that's loaded into it
// instead of a document being loaded. In that case, treat this object like
// any other non-document-loading element.
RefPtr<nsFrameLoaderOwner> frameLoaderOwner =
do_QueryObject(aLoadingContext);
RefPtr<nsFrameLoader> fl =
frameLoaderOwner ? frameLoaderOwner->GetFrameLoader() : nullptr;
if (fl) {
nsCOMPtr<nsIDocShell> docShell = fl->GetDocShell(IgnoreErrors());
if (docShell) {
nsCOMPtr<nsPIDOMWindowOuter> outerWindow = do_GetInterface(docShell);
if (outerWindow) {
mFrameOuterWindowID = outerWindow->WindowID();
RefPtr<dom::BrowsingContext> bc = outerWindow->GetBrowsingContext();
mFrameBrowsingContextID = bc ? bc->Id() : 0;
}
}
}
// if the document forces all mixed content to be blocked, then we
// store that bit for all requests on the loadinfo.
mBlockAllMixedContent =
aLoadingContext->OwnerDoc()->GetBlockAllMixedContent(false) ||
(nsContentUtils::IsPreloadType(mInternalContentPolicyType) &&
aLoadingContext->OwnerDoc()->GetBlockAllMixedContent(true));
// if the document forces all requests to be upgraded from http to https,
// then we should do that for all requests. If it only forces preloads to be
// upgraded then we should enforce upgrade insecure requests only for
// preloads.
mUpgradeInsecureRequests =
aLoadingContext->OwnerDoc()->GetUpgradeInsecureRequests(false) ||
(nsContentUtils::IsPreloadType(mInternalContentPolicyType) &&
aLoadingContext->OwnerDoc()->GetUpgradeInsecureRequests(true));
if (nsContentUtils::IsUpgradableDisplayType(externalType)) {
if (mLoadingPrincipal->SchemeIs("https")) {
if (StaticPrefs::security_mixed_content_upgrade_display_content()) {
mBrowserUpgradeInsecureRequests = true;
} else {
mBrowserWouldUpgradeInsecureRequests = true;
}
}
}
}
mOriginAttributes = mLoadingPrincipal->OriginAttributesRef();
// We need to do this after inheriting the document's origin attributes
// above, in case the loading principal ends up being the system principal.
if (aLoadingContext) {
nsCOMPtr<nsILoadContext> loadContext =
aLoadingContext->OwnerDoc()->GetLoadContext();
nsCOMPtr<nsIDocShell> docShell = aLoadingContext->OwnerDoc()->GetDocShell();
if (loadContext && docShell &&
docShell->GetBrowsingContext()->IsContent()) {
bool usePrivateBrowsing;
nsresult rv = loadContext->GetUsePrivateBrowsing(&usePrivateBrowsing);
if (NS_SUCCEEDED(rv)) {
mOriginAttributes.SyncAttributesWithPrivateBrowsing(usePrivateBrowsing);
}
}
}
// For chrome docshell, the mPrivateBrowsingId remains 0 even its
// UsePrivateBrowsing() is true, so we only update the mPrivateBrowsingId in
// origin attributes if the type of the docshell is content.
if (aLoadingContext) {
nsCOMPtr<nsIDocShell> docShell = aLoadingContext->OwnerDoc()->GetDocShell();
if (docShell) {
if (docShell->GetBrowsingContext()->IsChrome()) {
MOZ_ASSERT(mOriginAttributes.mPrivateBrowsingId == 0,
"chrome docshell shouldn't have mPrivateBrowsingId set.");
}
}
}
// in case this is a loadinfo for a parser generated script, then we store
// that bit of information so CSP strict-dynamic can query it.
if (!nsContentUtils::IsPreloadType(mInternalContentPolicyType)) {
nsCOMPtr<nsIScriptElement> script = do_QueryInterface(aLoadingContext);
if (script && script->GetParserCreated() != mozilla::dom::NOT_FROM_PARSER) {
mParserCreatedScript = true;
}
}
}
/* Constructor takes an outer window, but no loadingNode or loadingPrincipal.
* This constructor should only be used for TYPE_DOCUMENT loads, since they
* have a null loadingNode and loadingPrincipal.
*/
LoadInfo::LoadInfo(nsPIDOMWindowOuter* aOuterWindow,
nsIPrincipal* aTriggeringPrincipal,
nsISupports* aContextForTopLevelLoad,
nsSecurityFlags aSecurityFlags, uint32_t aSandboxFlags)
: mLoadingPrincipal(nullptr),
mTriggeringPrincipal(aTriggeringPrincipal),
mPrincipalToInherit(nullptr),
mContextForTopLevelLoad(do_GetWeakReference(aContextForTopLevelLoad)),
mSecurityFlags(aSecurityFlags),
mSandboxFlags(aSandboxFlags),
mInternalContentPolicyType(nsIContentPolicy::TYPE_DOCUMENT),
mTainting(LoadTainting::Basic),
mBlockAllMixedContent(false),
mUpgradeInsecureRequests(false),
mBrowserUpgradeInsecureRequests(false),
mBrowserWouldUpgradeInsecureRequests(false),
mForceAllowDataURI(false),
mAllowInsecureRedirectToDataURI(false),
mBypassCORSChecks(false),
mSkipContentPolicyCheckForWebRequest(false),
mOriginalFrameSrcLoad(false),
mForceInheritPrincipalDropped(false),
mInnerWindowID(0),
mOuterWindowID(0),
mParentOuterWindowID(0),
mTopOuterWindowID(0),
mFrameOuterWindowID(0),
mBrowsingContextID(0),
mFrameBrowsingContextID(0),
mInitialSecurityCheckDone(false),
mIsThirdPartyContext(false), // NB: TYPE_DOCUMENT implies !third-party.
mIsThirdPartyContextToTopWindow(true),
mIsFormSubmission(false),
mSendCSPViolationEvents(true),
mRequestBlockingReason(BLOCKING_REASON_NONE),
mForcePreflight(false),
mIsPreflight(false),
mLoadTriggeredFromExternal(false),
mServiceWorkerTaintingSynthesized(false),
mDocumentHasUserInteracted(false),
mDocumentHasLoaded(false),
mAllowListFutureDocumentsCreatedFromThisRedirectChain(false),
mSkipContentSniffing(false),
mHttpsOnlyStatus(nsILoadInfo::HTTPS_ONLY_UNINITIALIZED),
mHasValidUserGestureActivation(false),
mAllowDeprecatedSystemRequests(false),
mIsInDevToolsContext(false),
mParserCreatedScript(false),
mHasStoragePermission(false),
mIsFromProcessingFrameAttributes(false),
mLoadingEmbedderPolicy(nsILoadInfo::EMBEDDER_POLICY_NULL) {
// Top-level loads are never third-party
// Grab the information we can out of the window.
MOZ_ASSERT(aOuterWindow);
MOZ_ASSERT(mTriggeringPrincipal);
// if the load is sandboxed, we can not also inherit the principal
if (mSandboxFlags & SANDBOXED_ORIGIN) {
mForceInheritPrincipalDropped =
(mSecurityFlags & nsILoadInfo::SEC_FORCE_INHERIT_PRINCIPAL);
mSecurityFlags &= ~nsILoadInfo::SEC_FORCE_INHERIT_PRINCIPAL;
}
// NB: Ignore the current inner window since we're navigating away from it.
mOuterWindowID = mParentOuterWindowID = mTopOuterWindowID =
aOuterWindow->WindowID();
RefPtr<BrowsingContext> bc = aOuterWindow->GetBrowsingContext();
mBrowsingContextID = bc ? bc->Id() : 0;
// This should be removed in bug 1618557
nsGlobalWindowInner* innerWindow =
nsGlobalWindowInner::Cast(aOuterWindow->GetCurrentInnerWindow());
if (innerWindow) {
mTopLevelPrincipal = innerWindow->GetTopLevelAntiTrackingPrincipal();
// mTopLevelStorageAreaPrincipal is always null for top-level document
// loading.
}
// get the docshell from the outerwindow, and then get the originattributes
nsCOMPtr<nsIDocShell> docShell = aOuterWindow->GetDocShell();
MOZ_ASSERT(docShell);
mOriginAttributes = nsDocShell::Cast(docShell)->GetOriginAttributes();
// We sometimes use this constructor for security checks for outer windows
// that aren't top level.
if (aSecurityFlags != nsILoadInfo::SEC_ONLY_FOR_EXPLICIT_CONTENTSEC_CHECK) {
MOZ_ASSERT(aOuterWindow->GetBrowsingContext()->IsTop());
MOZ_ASSERT(mTopOuterWindowID == FindTopOuterWindowID(aOuterWindow));
}
#ifdef DEBUG
if (docShell->GetBrowsingContext()->IsChrome()) {
MOZ_ASSERT(mOriginAttributes.mPrivateBrowsingId == 0,
"chrome docshell shouldn't have mPrivateBrowsingId set.");
}
#endif
// Let's take the current cookie behavior and current cookie permission
// for the documents' loadInfo. Note that for any other loadInfos,
// cookieBehavior will be BEHAVIOR_REJECT for security reasons.
mCookieJarSettings = CookieJarSettings::Create();
}
LoadInfo::LoadInfo(dom::CanonicalBrowsingContext* aBrowsingContext,
nsIPrincipal* aTriggeringPrincipal,
const OriginAttributes& aOriginAttributes,
uint64_t aOuterWindowID, nsSecurityFlags aSecurityFlags,
uint32_t aSandboxFlags)
: mLoadingPrincipal(nullptr),
mTriggeringPrincipal(aTriggeringPrincipal),
mPrincipalToInherit(nullptr),
mContextForTopLevelLoad(nullptr),
mSecurityFlags(aSecurityFlags),
mSandboxFlags(aSandboxFlags),
mInternalContentPolicyType(nsIContentPolicy::TYPE_DOCUMENT),
mTainting(LoadTainting::Basic),
mBlockAllMixedContent(false),
mUpgradeInsecureRequests(false),
mBrowserUpgradeInsecureRequests(false),
mBrowserWouldUpgradeInsecureRequests(false),
mForceAllowDataURI(false),
mAllowInsecureRedirectToDataURI(false),
mBypassCORSChecks(false),
mSkipContentPolicyCheckForWebRequest(false),
mOriginalFrameSrcLoad(false),
mForceInheritPrincipalDropped(false),
mInnerWindowID(0),
mOuterWindowID(0),
mParentOuterWindowID(0),
mTopOuterWindowID(0),
mFrameOuterWindowID(0),
mBrowsingContextID(0),
mFrameBrowsingContextID(0),
mInitialSecurityCheckDone(false),
mIsThirdPartyContext(false), // NB: TYPE_DOCUMENT implies !third-party.
mIsThirdPartyContextToTopWindow(true),
mIsFormSubmission(false),
mSendCSPViolationEvents(true),
mRequestBlockingReason(BLOCKING_REASON_NONE),
mForcePreflight(false),
mIsPreflight(false),
mLoadTriggeredFromExternal(false),
mServiceWorkerTaintingSynthesized(false),
mDocumentHasUserInteracted(false),
mDocumentHasLoaded(false),
mAllowListFutureDocumentsCreatedFromThisRedirectChain(false),
mSkipContentSniffing(false),
mHttpsOnlyStatus(nsILoadInfo::HTTPS_ONLY_UNINITIALIZED),
mHasValidUserGestureActivation(false),
mAllowDeprecatedSystemRequests(false),
mIsInDevToolsContext(false),
mParserCreatedScript(false),
mHasStoragePermission(false),
mIsFromProcessingFrameAttributes(false),
mLoadingEmbedderPolicy(nsILoadInfo::EMBEDDER_POLICY_NULL) {
// Top-level loads are never third-party
// Grab the information we can out of the window.
MOZ_ASSERT(aBrowsingContext);
MOZ_ASSERT(mTriggeringPrincipal);
MOZ_ASSERT(aSecurityFlags !=
nsILoadInfo::SEC_ONLY_FOR_EXPLICIT_CONTENTSEC_CHECK);
// if the load is sandboxed, we can not also inherit the principal
if (mSandboxFlags & SANDBOXED_ORIGIN) {
mForceInheritPrincipalDropped =
(mSecurityFlags & nsILoadInfo::SEC_FORCE_INHERIT_PRINCIPAL);
mSecurityFlags &= ~nsILoadInfo::SEC_FORCE_INHERIT_PRINCIPAL;
}
// NB: Ignore the current inner window since we're navigating away from it.
// Since this is a TYPE_DOCUMENT load, we should be the top window, and all
// the outer window IDs are the same.
mOuterWindowID = mParentOuterWindowID = mTopOuterWindowID = aOuterWindowID;
mBrowsingContextID = aBrowsingContext->Id();
mOriginAttributes = aOriginAttributes;
#ifdef DEBUG
if (aBrowsingContext->IsChrome()) {
MOZ_ASSERT(mOriginAttributes.mPrivateBrowsingId == 0,
"chrome docshell shouldn't have mPrivateBrowsingId set.");
}
#endif
// Let's take the current cookie behavior and current cookie permission
// for the documents' loadInfo. Note that for any other loadInfos,
// cookieBehavior will be BEHAVIOR_REJECT for security reasons.
mCookieJarSettings = CookieJarSettings::Create();
}
LoadInfo::LoadInfo(dom::WindowGlobalParent* aParentWGP,
nsIPrincipal* aTriggeringPrincipal,
uint64_t aFrameOuterWindowID,
nsContentPolicyType aContentPolicyType,
nsSecurityFlags aSecurityFlags, uint32_t aSandboxFlags)
: mLoadingPrincipal(nullptr),
mTriggeringPrincipal(aTriggeringPrincipal),
mPrincipalToInherit(nullptr),
mClientInfo(Maybe<mozilla::dom::ClientInfo>()),
mController(Maybe<mozilla::dom::ServiceWorkerDescriptor>()),
mLoadingContext(nullptr),
mContextForTopLevelLoad(nullptr),
mSecurityFlags(aSecurityFlags),
mSandboxFlags(aSandboxFlags),
mInternalContentPolicyType(aContentPolicyType),
mTainting(LoadTainting::Basic),
mBlockAllMixedContent(false),
mUpgradeInsecureRequests(false),
mBrowserUpgradeInsecureRequests(false),
mBrowserWouldUpgradeInsecureRequests(false),
mForceAllowDataURI(false),
mAllowInsecureRedirectToDataURI(false),
mBypassCORSChecks(false),
mSkipContentPolicyCheckForWebRequest(false),
mOriginalFrameSrcLoad(false),
mForceInheritPrincipalDropped(false),
mInnerWindowID(0),
mOuterWindowID(0),
mParentOuterWindowID(0),
mTopOuterWindowID(0),
mFrameOuterWindowID(aFrameOuterWindowID),
mBrowsingContextID(0),
mFrameBrowsingContextID(0),
mInitialSecurityCheckDone(false),
mIsThirdPartyContext(false),
mIsThirdPartyContextToTopWindow(true),
mIsFormSubmission(false),
mSendCSPViolationEvents(true),
mRequestBlockingReason(BLOCKING_REASON_NONE),
mForcePreflight(false),
mIsPreflight(false),
mLoadTriggeredFromExternal(false),
mServiceWorkerTaintingSynthesized(false),
mDocumentHasUserInteracted(false),
mDocumentHasLoaded(false),
mAllowListFutureDocumentsCreatedFromThisRedirectChain(false),
mSkipContentSniffing(false),
mHttpsOnlyStatus(nsILoadInfo::HTTPS_ONLY_UNINITIALIZED),
mAllowDeprecatedSystemRequests(false),
mIsInDevToolsContext(false),
mParserCreatedScript(false),
mHasStoragePermission(false),
mIsFromProcessingFrameAttributes(false),
mLoadingEmbedderPolicy(nsILoadInfo::EMBEDDER_POLICY_NULL) {
CanonicalBrowsingContext* parentBC = aParentWGP->BrowsingContext();
MOZ_ASSERT(parentBC);
ComputeAncestors(parentBC, mAncestorPrincipals, mAncestorBrowsingContextIDs);
RefPtr<WindowGlobalParent> topLevelWGP = aParentWGP->TopWindowContext();
if (WindowGlobalParent* ancestorWGP = aParentWGP->GetParentWindowContext()) {
mParentOuterWindowID = ancestorWGP->OuterWindowId();
} else {
mParentOuterWindowID = aParentWGP->OuterWindowId();
}
// if the load is sandboxed, we can not also inherit the principal
if (mSandboxFlags & SANDBOXED_ORIGIN) {
mForceInheritPrincipalDropped =
(mSecurityFlags & nsILoadInfo::SEC_FORCE_INHERIT_PRINCIPAL);
mSecurityFlags &= ~nsILoadInfo::SEC_FORCE_INHERIT_PRINCIPAL;
}
// Ensure that all network requests for a window client have the ClientInfo
// properly set.
mClientInfo = aParentWGP->GetClientInfo();
mLoadingPrincipal = aParentWGP->DocumentPrincipal();
ComputeIsThirdPartyContext(aParentWGP);
// When the element being loaded is a frame, we choose the frame's window
// for the window ID (see mInnerWindowID being set below) and the frame
// element's window as the parent window. This is the behavior that Chrome
// exposes to add-ons.
mOuterWindowID = aParentWGP->OuterWindowId();
mTopOuterWindowID = topLevelWGP->OuterWindowId();
mBrowsingContextID = parentBC->Id();
// Let's inherit the cookie behavior and permission from the embedder
// document.
mCookieJarSettings = aParentWGP->CookieJarSettings();
if (parentBC->IsContentSubframe()) {
mDocumentHasLoaded = false;
} else {
mDocumentHasLoaded = aParentWGP->DocumentHasLoaded();
}
if (topLevelWGP->BrowsingContext()->IsTop()) {
if (mCookieJarSettings) {
bool stopAtOurLevel = mCookieJarSettings->GetCookieBehavior() ==
nsICookieService::BEHAVIOR_REJECT_TRACKER;
if (!stopAtOurLevel ||
topLevelWGP->OuterWindowId() != aParentWGP->OuterWindowId()) {
mTopLevelPrincipal = topLevelWGP->DocumentPrincipal();
}
}
if (parentBC->IsContentSubframe()) {
// For resources within iframes, we actually want the
// top-level document's flag, not the iframe document's.
mDocumentHasLoaded = topLevelWGP->DocumentHasLoaded();
}
}
// The top-level-storage-area-principal is not null only for the first
// level of iframes (null for top-level contexts, and null for
// sub-iframes). If we are loading a sub-document resource, we must
// calculate what the top-level-storage-area-principal will be for the
// new context.
if (parentBC->IsTop()) {
if (!Document::StorageAccessSandboxed(aParentWGP->SandboxFlags())) {
mTopLevelStorageAreaPrincipal = aParentWGP->DocumentPrincipal();
}
// If this is the first level iframe, embedder WindowGlobalParent's document
// principal is our top-level principal.
if (!mTopLevelPrincipal) {
mTopLevelPrincipal = aParentWGP->DocumentPrincipal();
}
}
mInnerWindowID = aParentWGP->InnerWindowId();
mDocumentHasUserInteracted = aParentWGP->DocumentHasUserInteracted();
// if the document forces all mixed content to be blocked, then we
// store that bit for all requests on the loadinfo.
mBlockAllMixedContent = aParentWGP->GetDocumentBlockAllMixedContent();
// if the document forces all requests to be upgraded from http to https,
// then we should do that for all requests. If it only forces preloads to be
// upgraded then we should enforce upgrade insecure requests only for
// preloads.
mUpgradeInsecureRequests = aParentWGP->GetDocumentUpgradeInsecureRequests();
mOriginAttributes = mLoadingPrincipal->OriginAttributesRef();
// We need to do this after inheriting the document's origin attributes
// above, in case the loading principal ends up being the system principal.
if (parentBC->IsContent()) {
mOriginAttributes.SyncAttributesWithPrivateBrowsing(
parentBC->UsePrivateBrowsing());
}
mHttpsOnlyStatus |= aParentWGP->HttpsOnlyStatus();
// For chrome BC, the mPrivateBrowsingId remains 0 even its
// UsePrivateBrowsing() is true, so we only update the mPrivateBrowsingId in
// origin attributes if the type of the BC is content.
if (parentBC->IsChrome()) {
MOZ_ASSERT(mOriginAttributes.mPrivateBrowsingId == 0,
"chrome docshell shouldn't have mPrivateBrowsingId set.");
}
RefPtr<WindowContext> ctx = WindowContext::GetById(mInnerWindowID);
if (ctx) {
mLoadingEmbedderPolicy = ctx->GetEmbedderPolicy();
}
}
LoadInfo::LoadInfo(dom::CanonicalBrowsingContext* aBrowsingContext,
nsIPrincipal* aTriggeringPrincipal,
uint64_t aFrameOuterWindowID, nsSecurityFlags aSecurityFlags,
uint32_t aSandboxFlags)
: LoadInfo(aBrowsingContext->GetParentWindowContext(), aTriggeringPrincipal,
aFrameOuterWindowID,
InternalContentPolicyTypeForFrame(aBrowsingContext),
aSecurityFlags, aSandboxFlags) {
mFrameBrowsingContextID = aBrowsingContext->Id();
}
LoadInfo::LoadInfo(const LoadInfo& rhs)
: mLoadingPrincipal(rhs.mLoadingPrincipal),
mTriggeringPrincipal(rhs.mTriggeringPrincipal),
mPrincipalToInherit(rhs.mPrincipalToInherit),
mSandboxedLoadingPrincipal(rhs.mSandboxedLoadingPrincipal),
mTopLevelPrincipal(rhs.mTopLevelPrincipal),
mTopLevelStorageAreaPrincipal(rhs.mTopLevelStorageAreaPrincipal),
mResultPrincipalURI(rhs.mResultPrincipalURI),
mCookieJarSettings(rhs.mCookieJarSettings),
mCspToInherit(rhs.mCspToInherit),
mClientInfo(rhs.mClientInfo),
// mReservedClientSource must be handled specially during redirect
// mReservedClientInfo must be handled specially during redirect
// mInitialClientInfo must be handled specially during redirect
mController(rhs.mController),
mPerformanceStorage(rhs.mPerformanceStorage),
mLoadingContext(rhs.mLoadingContext),
mContextForTopLevelLoad(rhs.mContextForTopLevelLoad),
mSecurityFlags(rhs.mSecurityFlags),
mSandboxFlags(rhs.mSandboxFlags),
mInternalContentPolicyType(rhs.mInternalContentPolicyType),
mTainting(rhs.mTainting),
mBlockAllMixedContent(rhs.mBlockAllMixedContent),
mUpgradeInsecureRequests(rhs.mUpgradeInsecureRequests),
mBrowserUpgradeInsecureRequests(rhs.mBrowserUpgradeInsecureRequests),
mBrowserWouldUpgradeInsecureRequests(
rhs.mBrowserWouldUpgradeInsecureRequests),
mForceAllowDataURI(rhs.mForceAllowDataURI),
mAllowInsecureRedirectToDataURI(rhs.mAllowInsecureRedirectToDataURI),
mBypassCORSChecks(rhs.mBypassCORSChecks),
mSkipContentPolicyCheckForWebRequest(
rhs.mSkipContentPolicyCheckForWebRequest),
mOriginalFrameSrcLoad(rhs.mOriginalFrameSrcLoad),
mForceInheritPrincipalDropped(rhs.mForceInheritPrincipalDropped),
mInnerWindowID(rhs.mInnerWindowID),
mOuterWindowID(rhs.mOuterWindowID),
mParentOuterWindowID(rhs.mParentOuterWindowID),
mTopOuterWindowID(rhs.mTopOuterWindowID),
mFrameOuterWindowID(rhs.mFrameOuterWindowID),
mBrowsingContextID(rhs.mBrowsingContextID),
mFrameBrowsingContextID(rhs.mFrameBrowsingContextID),
mInitialSecurityCheckDone(rhs.mInitialSecurityCheckDone),
mIsThirdPartyContext(rhs.mIsThirdPartyContext),
mIsThirdPartyContextToTopWindow(rhs.mIsThirdPartyContextToTopWindow),
mIsFormSubmission(rhs.mIsFormSubmission),
mSendCSPViolationEvents(rhs.mSendCSPViolationEvents),
mOriginAttributes(rhs.mOriginAttributes),
mRedirectChainIncludingInternalRedirects(
rhs.mRedirectChainIncludingInternalRedirects.Clone()),
mRedirectChain(rhs.mRedirectChain.Clone()),
mAncestorPrincipals(rhs.mAncestorPrincipals.Clone()),
mAncestorBrowsingContextIDs(rhs.mAncestorBrowsingContextIDs.Clone()),
mCorsUnsafeHeaders(rhs.mCorsUnsafeHeaders.Clone()),
mRequestBlockingReason(rhs.mRequestBlockingReason),
mForcePreflight(rhs.mForcePreflight),
mIsPreflight(rhs.mIsPreflight),
mLoadTriggeredFromExternal(rhs.mLoadTriggeredFromExternal),
// mServiceWorkerTaintingSynthesized must be handled specially during
// redirect
mServiceWorkerTaintingSynthesized(false),
mDocumentHasUserInteracted(rhs.mDocumentHasUserInteracted),
mDocumentHasLoaded(rhs.mDocumentHasLoaded),
mAllowListFutureDocumentsCreatedFromThisRedirectChain(
rhs.mAllowListFutureDocumentsCreatedFromThisRedirectChain),
mCspNonce(rhs.mCspNonce),
mSkipContentSniffing(rhs.mSkipContentSniffing),
mHttpsOnlyStatus(rhs.mHttpsOnlyStatus),
mHasValidUserGestureActivation(rhs.mHasValidUserGestureActivation),
mAllowDeprecatedSystemRequests(rhs.mAllowDeprecatedSystemRequests),
mIsInDevToolsContext(rhs.mIsInDevToolsContext),
mParserCreatedScript(rhs.mParserCreatedScript),
mHasStoragePermission(rhs.mHasStoragePermission),
mIsFromProcessingFrameAttributes(rhs.mIsFromProcessingFrameAttributes),
mLoadingEmbedderPolicy(rhs.mLoadingEmbedderPolicy) {}
LoadInfo::LoadInfo(
nsIPrincipal* aLoadingPrincipal, nsIPrincipal* aTriggeringPrincipal,
nsIPrincipal* aPrincipalToInherit, nsIPrincipal* aSandboxedLoadingPrincipal,
nsIPrincipal* aTopLevelPrincipal,
nsIPrincipal* aTopLevelStorageAreaPrincipal, nsIURI* aResultPrincipalURI,
nsICookieJarSettings* aCookieJarSettings,
nsIContentSecurityPolicy* aCspToInherit,
const Maybe<ClientInfo>& aClientInfo,
const Maybe<ClientInfo>& aReservedClientInfo,
const Maybe<ClientInfo>& aInitialClientInfo,
const Maybe<ServiceWorkerDescriptor>& aController,
nsSecurityFlags aSecurityFlags, uint32_t aSandboxFlags,
nsContentPolicyType aContentPolicyType, LoadTainting aTainting,
bool aBlockAllMixedContent, bool aUpgradeInsecureRequests,
bool aBrowserUpgradeInsecureRequests,
bool aBrowserWouldUpgradeInsecureRequests, bool aForceAllowDataURI,
bool aAllowInsecureRedirectToDataURI, bool aBypassCORSChecks,
bool aSkipContentPolicyCheckForWebRequest,
bool aForceInheritPrincipalDropped, uint64_t aInnerWindowID,
uint64_t aOuterWindowID, uint64_t aParentOuterWindowID,
uint64_t aTopOuterWindowID, uint64_t aFrameOuterWindowID,
uint64_t aBrowsingContextID, uint64_t aFrameBrowsingContextID,
bool aInitialSecurityCheckDone, bool aIsThirdPartyContext,
bool aIsThirdPartyContextToTopWindow, bool aIsFormSubmission,
bool aSendCSPViolationEvents, const OriginAttributes& aOriginAttributes,
RedirectHistoryArray& aRedirectChainIncludingInternalRedirects,
RedirectHistoryArray& aRedirectChain,
nsTArray<nsCOMPtr<nsIPrincipal>>&& aAncestorPrincipals,
const nsTArray<uint64_t>& aAncestorBrowsingContextIDs,
const nsTArray<nsCString>& aCorsUnsafeHeaders, bool aForcePreflight,
bool aIsPreflight, bool aLoadTriggeredFromExternal,
bool aServiceWorkerTaintingSynthesized, bool aDocumentHasUserInteracted,
bool aDocumentHasLoaded,
bool aAllowListFutureDocumentsCreatedFromThisRedirectChain,
const nsAString& aCspNonce, bool aSkipContentSniffing,
uint32_t aHttpsOnlyStatus, bool aHasValidUserGestureActivation,
bool aAllowDeprecatedSystemRequests, bool aIsInDevToolsContext,
bool aParserCreatedScript, bool aHasStoragePermission,
uint32_t aRequestBlockingReason, nsINode* aLoadingContext,
nsILoadInfo::CrossOriginEmbedderPolicy aLoadingEmbedderPolicy)
: mLoadingPrincipal(aLoadingPrincipal),
mTriggeringPrincipal(aTriggeringPrincipal),
mPrincipalToInherit(aPrincipalToInherit),
mTopLevelPrincipal(aTopLevelPrincipal),
mTopLevelStorageAreaPrincipal(aTopLevelStorageAreaPrincipal),
mResultPrincipalURI(aResultPrincipalURI),
mCookieJarSettings(aCookieJarSettings),
mCspToInherit(aCspToInherit),
mClientInfo(aClientInfo),
mReservedClientInfo(aReservedClientInfo),
mInitialClientInfo(aInitialClientInfo),
mController(aController),
mLoadingContext(do_GetWeakReference(aLoadingContext)),
mSecurityFlags(aSecurityFlags),
mSandboxFlags(aSandboxFlags),
mInternalContentPolicyType(aContentPolicyType),
mTainting(aTainting),
mBlockAllMixedContent(aBlockAllMixedContent),
mUpgradeInsecureRequests(aUpgradeInsecureRequests),
mBrowserUpgradeInsecureRequests(aBrowserUpgradeInsecureRequests),
mBrowserWouldUpgradeInsecureRequests(
aBrowserWouldUpgradeInsecureRequests),
mForceAllowDataURI(aForceAllowDataURI),
mAllowInsecureRedirectToDataURI(aAllowInsecureRedirectToDataURI),
mBypassCORSChecks(aBypassCORSChecks),
mSkipContentPolicyCheckForWebRequest(
aSkipContentPolicyCheckForWebRequest),
mOriginalFrameSrcLoad(false),
mForceInheritPrincipalDropped(aForceInheritPrincipalDropped),
mInnerWindowID(aInnerWindowID),
mOuterWindowID(aOuterWindowID),
mParentOuterWindowID(aParentOuterWindowID),
mTopOuterWindowID(aTopOuterWindowID),
mFrameOuterWindowID(aFrameOuterWindowID),
mBrowsingContextID(aBrowsingContextID),
mFrameBrowsingContextID(aFrameBrowsingContextID),
mInitialSecurityCheckDone(aInitialSecurityCheckDone),
mIsThirdPartyContext(aIsThirdPartyContext),
mIsThirdPartyContextToTopWindow(aIsThirdPartyContextToTopWindow),
mIsFormSubmission(aIsFormSubmission),
mSendCSPViolationEvents(aSendCSPViolationEvents),
mOriginAttributes(aOriginAttributes),
mAncestorPrincipals(std::move(aAncestorPrincipals)),
mAncestorBrowsingContextIDs(aAncestorBrowsingContextIDs.Clone()),
mCorsUnsafeHeaders(aCorsUnsafeHeaders.Clone()),
mRequestBlockingReason(aRequestBlockingReason),
mForcePreflight(aForcePreflight),
mIsPreflight(aIsPreflight),
mLoadTriggeredFromExternal(aLoadTriggeredFromExternal),
mServiceWorkerTaintingSynthesized(aServiceWorkerTaintingSynthesized),
mDocumentHasUserInteracted(aDocumentHasUserInteracted),
mDocumentHasLoaded(aDocumentHasLoaded),
mAllowListFutureDocumentsCreatedFromThisRedirectChain(
aAllowListFutureDocumentsCreatedFromThisRedirectChain),
mCspNonce(aCspNonce),
mSkipContentSniffing(aSkipContentSniffing),
mHttpsOnlyStatus(aHttpsOnlyStatus),
mHasValidUserGestureActivation(aHasValidUserGestureActivation),
mAllowDeprecatedSystemRequests(aAllowDeprecatedSystemRequests),
mIsInDevToolsContext(aIsInDevToolsContext),
mParserCreatedScript(aParserCreatedScript),
mHasStoragePermission(aHasStoragePermission),
mIsFromProcessingFrameAttributes(false),
mLoadingEmbedderPolicy(aLoadingEmbedderPolicy) {
// Only top level TYPE_DOCUMENT loads can have a null loadingPrincipal
MOZ_ASSERT(mLoadingPrincipal ||
aContentPolicyType == nsIContentPolicy::TYPE_DOCUMENT);
MOZ_ASSERT(mTriggeringPrincipal);
mRedirectChainIncludingInternalRedirects.SwapElements(
aRedirectChainIncludingInternalRedirects);
mRedirectChain.SwapElements(aRedirectChain);
}
// static
void LoadInfo::ComputeAncestors(
CanonicalBrowsingContext* aBC,
nsTArray<nsCOMPtr<nsIPrincipal>>& aAncestorPrincipals,
nsTArray<uint64_t>& aBrowsingContextIDs) {
MOZ_ASSERT(aAncestorPrincipals.IsEmpty());
MOZ_ASSERT(aBrowsingContextIDs.IsEmpty());
CanonicalBrowsingContext* ancestorBC = aBC;
// Iterate over ancestor WindowGlobalParents, collecting principals and outer
// window IDs.
while (WindowGlobalParent* ancestorWGP =
ancestorBC->GetParentWindowContext()) {
ancestorBC = ancestorWGP->BrowsingContext();
nsCOMPtr<nsIPrincipal> parentPrincipal = ancestorWGP->DocumentPrincipal();
MOZ_ASSERT(parentPrincipal, "Ancestor principal is null");
aAncestorPrincipals.AppendElement(parentPrincipal.forget());
aBrowsingContextIDs.AppendElement(ancestorBC->Id());
}
}
void LoadInfo::ComputeIsThirdPartyContext(nsPIDOMWindowOuter* aOuterWindow) {
nsContentPolicyType type =
nsContentUtils::InternalContentPolicyTypeToExternal(
mInternalContentPolicyType);
if (type == nsIContentPolicy::TYPE_DOCUMENT) {
// Top-level loads are never third-party.
mIsThirdPartyContext = false;
return;
}
nsCOMPtr<mozIThirdPartyUtil> util(do_GetService(THIRDPARTYUTIL_CONTRACTID));
if (NS_WARN_IF(!util)) {
return;
}
util->IsThirdPartyWindow(aOuterWindow, nullptr, &mIsThirdPartyContext);
}
void LoadInfo::ComputeIsThirdPartyContext(dom::WindowGlobalParent* aGlobal) {
if (nsILoadInfo::GetExternalContentPolicyType() ==
nsIContentPolicy::TYPE_DOCUMENT) {
// Top-level loads are never third-party.
mIsThirdPartyContext = false;
return;
}
ThirdPartyUtil* thirdPartyUtil = ThirdPartyUtil::GetInstance();
if (!thirdPartyUtil) {
return;
}
thirdPartyUtil->IsThirdPartyGlobal(aGlobal, &mIsThirdPartyContext);
}
NS_IMPL_ISUPPORTS(LoadInfo, nsILoadInfo)
already_AddRefed<nsILoadInfo> LoadInfo::Clone() const {
RefPtr<LoadInfo> copy(new LoadInfo(*this));
return copy.forget();
}
already_AddRefed<nsILoadInfo> LoadInfo::CloneWithNewSecFlags(
nsSecurityFlags aSecurityFlags) const {
RefPtr<LoadInfo> copy(new LoadInfo(*this));
copy->mSecurityFlags = aSecurityFlags;
return copy.forget();
}
already_AddRefed<nsILoadInfo> LoadInfo::CloneForNewRequest() const {
RefPtr<LoadInfo> copy(new LoadInfo(*this));
copy->mInitialSecurityCheckDone = false;
copy->mRedirectChainIncludingInternalRedirects.Clear();
copy->mRedirectChain.Clear();
copy->mResultPrincipalURI = nullptr;
return copy.forget();
}
NS_IMETHODIMP
LoadInfo::GetLoadingPrincipal(nsIPrincipal** aLoadingPrincipal) {
NS_IF_ADDREF(*aLoadingPrincipal = mLoadingPrincipal);
return NS_OK;
}