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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 sw=2 et tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/BasePrincipal.h"
#include "nsDocShell.h"
#include "ExpandedPrincipal.h"
#include "nsNetUtil.h"
#include "nsContentUtils.h"
#include "nsIOService.h"
#include "nsIURIWithSpecialOrigin.h"
#include "nsScriptSecurityManager.h"
#include "nsServiceManagerUtils.h"
#include "nsAboutProtocolUtils.h"
#include "ThirdPartyUtil.h"
#include "mozilla/ContentPrincipal.h"
#include "mozilla/ExtensionPolicyService.h"
#include "mozilla/NullPrincipal.h"
#include "mozilla/dom/BlobURLProtocolHandler.h"
#include "mozilla/dom/ChromeUtils.h"
#include "mozilla/dom/ReferrerInfo.h"
#include "mozilla/dom/ToJSValue.h"
#include "mozilla/dom/nsMixedContentBlocker.h"
#include "mozilla/Components.h"
#include "mozilla/dom/StorageUtils.h"
#include "mozilla/dom/StorageUtils.h"
#include "nsIURL.h"
#include "nsEffectiveTLDService.h"
#include "nsIURIMutator.h"
#include "mozilla/StaticPrefs_permissions.h"
#include "nsIURIMutator.h"
#include "nsMixedContentBlocker.h"
#include "prnetdb.h"
#include "nsIURIFixup.h"
#include "mozilla/dom/StorageUtils.h"
#include "mozilla/StorageAccess.h"
#include "nsPIDOMWindow.h"
#include "nsIURIMutator.h"
#include "mozilla/PermissionManager.h"
#include "json/json.h"
#include "nsSerializationHelper.h"
namespace mozilla {
const char* BasePrincipal::JSONEnumKeyStrings[4] = {
"0",
"1",
"2",
"3",
};
BasePrincipal::BasePrincipal(PrincipalKind aKind,
const nsACString& aOriginNoSuffix,
const OriginAttributes& aOriginAttributes)
: mOriginNoSuffix(NS_Atomize(aOriginNoSuffix)),
mOriginSuffix(aOriginAttributes.CreateSuffixAtom()),
mOriginAttributes(aOriginAttributes),
mKind(aKind),
mHasExplicitDomain(false) {}
BasePrincipal::BasePrincipal(BasePrincipal* aOther,
const OriginAttributes& aOriginAttributes)
: mOriginNoSuffix(aOther->mOriginNoSuffix),
mOriginSuffix(aOriginAttributes.CreateSuffixAtom()),
mOriginAttributes(aOriginAttributes),
mKind(aOther->mKind),
mHasExplicitDomain(aOther->mHasExplicitDomain.load()) {}
BasePrincipal::~BasePrincipal() = default;
NS_IMETHODIMP
BasePrincipal::GetOrigin(nsACString& aOrigin) {
nsresult rv = GetOriginNoSuffix(aOrigin);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoCString suffix;
rv = GetOriginSuffix(suffix);
NS_ENSURE_SUCCESS(rv, rv);
aOrigin.Append(suffix);
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::GetWebExposedOriginSerialization(nsACString& aOrigin) {
aOrigin.Truncate();
nsCOMPtr<nsIURI> prinURI;
nsresult rv = GetURI(getter_AddRefs(prinURI));
if (NS_FAILED(rv) || !prinURI) {
return NS_ERROR_NOT_AVAILABLE;
}
return nsContentUtils::GetWebExposedOriginSerialization(prinURI, aOrigin);
}
NS_IMETHODIMP
BasePrincipal::GetHostPort(nsACString& aRes) {
aRes.Truncate();
nsCOMPtr<nsIURI> prinURI;
nsresult rv = GetURI(getter_AddRefs(prinURI));
if (NS_FAILED(rv) || !prinURI) {
return NS_OK;
}
return prinURI->GetHostPort(aRes);
}
NS_IMETHODIMP
BasePrincipal::GetHost(nsACString& aRes) {
aRes.Truncate();
nsCOMPtr<nsIURI> prinURI;
nsresult rv = GetURI(getter_AddRefs(prinURI));
if (NS_FAILED(rv) || !prinURI) {
return NS_OK;
}
return prinURI->GetHost(aRes);
}
NS_IMETHODIMP
BasePrincipal::GetOriginNoSuffix(nsACString& aOrigin) {
mOriginNoSuffix->ToUTF8String(aOrigin);
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::GetSiteOrigin(nsACString& aSiteOrigin) {
nsresult rv = GetSiteOriginNoSuffix(aSiteOrigin);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoCString suffix;
rv = GetOriginSuffix(suffix);
NS_ENSURE_SUCCESS(rv, rv);
aSiteOrigin.Append(suffix);
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::GetSiteOriginNoSuffix(nsACString& aSiteOrigin) {
return GetOriginNoSuffix(aSiteOrigin);
}
// Returns the inner Json::value of the serialized principal
// Example input and return values:
// Null principal:
// {"0":{"0":"moz-nullprincipal:{56cac540-864d-47e7-8e25-1614eab5155e}"}} ->
// {"0":"moz-nullprincipal:{56cac540-864d-47e7-8e25-1614eab5155e}"}
//
// Content principal:
// {"1":{"0":"https://mozilla.com"}} -> {"0":"https://mozilla.com"}
//
// Expanded principal:
// {"2":{"0":"<base64principal1>,<base64principal2>"}} ->
// {"0":"<base64principal1>,<base64principal2>"}
//
// System principal:
// {"3":{}} -> {}
// The aKey passed in also returns the corresponding PrincipalKind enum
//
// Warning: The Json::Value* pointer is into the aRoot object
static const Json::Value* GetPrincipalObject(const Json::Value& aRoot,
int& aOutPrincipalKind) {
const Json::Value::Members members = aRoot.getMemberNames();
// We only support one top level key in the object
if (members.size() != 1) {
return nullptr;
}
// members[0] here is the "0", "1", "2", "3" principalKind
// that is the top level of the serialized JSON principal
const std::string stringPrincipalKind = members[0];
// Next we take the string value from the JSON
// and convert it into the int for the BasePrincipal::PrincipalKind enum
// Verify that the key is within the valid range
int principalKind = std::stoi(stringPrincipalKind);
MOZ_ASSERT(BasePrincipal::eNullPrincipal == 0,
"We need to rely on 0 being a bounds check for the first "
"principal kind.");
if (principalKind < 0 || principalKind > BasePrincipal::eKindMax) {
return nullptr;
}
MOZ_ASSERT(principalKind == BasePrincipal::eNullPrincipal ||
principalKind == BasePrincipal::eContentPrincipal ||
principalKind == BasePrincipal::eExpandedPrincipal ||
principalKind == BasePrincipal::eSystemPrincipal);
aOutPrincipalKind = principalKind;
if (!aRoot[stringPrincipalKind].isObject()) {
return nullptr;
}
// Return the inner value of the principal object
return &aRoot[stringPrincipalKind];
}
// Accepts the JSON inner object without the wrapping principalKind
// (See GetPrincipalObject for the inner object response examples)
// Creates an array of KeyVal objects that are all defined on the principal
// Each principal type (null, content, expanded) has a KeyVal that stores the
// fields of the JSON
//
// This simplifies deserializing elsewhere as we do the checking for presence
// and string values here for the complete set of serializable keys that the
// corresponding principal supports.
//
// The KeyVal object has the following fields:
// - valueWasSerialized: is true if the deserialized JSON contained a string
// value
// - value: The string that was serialized for this key
// - key: an SerializableKeys enum value specific to the principal.
// For example content principal is an enum of: eURI, eDomain,
// eSuffix, eCSP
//
//
// Given an inner content principal:
// {"0": "https://mozilla.com", "2": "^privateBrowsingId=1"}
// | | | |
// ----------------------------- |
// | | |
// Key ----------------------
// |
// Value
//
// They Key "0" corresponds to ContentPrincipal::eURI
// They Key "1" corresponds to ContentPrincipal::eSuffix
template <typename T>
static nsTArray<typename T::KeyVal> GetJSONKeys(const Json::Value* aInput) {
int size = T::eMax + 1;
nsTArray<typename T::KeyVal> fields;
for (int i = 0; i != size; i++) {
typename T::KeyVal* field = fields.AppendElement();
// field->valueWasSerialized returns if the field was found in the
// deserialized code. This simplifies the consumers from having to check
// length.
field->valueWasSerialized = false;
field->key = static_cast<typename T::SerializableKeys>(i);
const std::string key = std::to_string(field->key);
if (aInput->isMember(key)) {
const Json::Value& val = (*aInput)[key];
if (val.isString()) {
field->value.Append(nsDependentCString(val.asCString()));
field->valueWasSerialized = true;
}
}
}
return fields;
}
// Takes a JSON string and parses it turning it into a principal of the
// corresponding type
//
// Given a content principal:
//
// inner JSON object
// |
// ---------------------------------------------------------
// | |
// {"1": {"0": "https://mozilla.com", "2": "^privateBrowsingId=1"}}
// | | | | |
// | ----------------------------- |
// | | | |
// PrincipalKind | | |
// | ----------------------------
// SerializableKeys |
// Value
//
// The string is first deserialized with jsoncpp to get the Json::Value of the
// object. The inner JSON object is parsed with GetPrincipalObject which returns
// a KeyVal array of the inner object's fields. PrincipalKind is returned by
// GetPrincipalObject which is then used to decide which principal
// implementation of FromProperties to call. The corresponding FromProperties
// call takes the KeyVal fields and turns it into a principal.
already_AddRefed<BasePrincipal> BasePrincipal::FromJSON(
const nsACString& aJSON) {
Json::Value root;
Json::CharReaderBuilder builder;
std::unique_ptr<Json::CharReader> const reader(builder.newCharReader());
bool parseSuccess =
reader->parse(aJSON.BeginReading(), aJSON.EndReading(), &root, nullptr);
if (!parseSuccess) {
MOZ_ASSERT(false,
"Unable to parse string as JSON to deserialize as a principal");
return nullptr;
}
return FromJSON(root);
}
// Checks if an ExpandedPrincipal is using the legacy format, where
// sub-principals are Base64 encoded.
//
// Given a legacy expanded principal:
//
// *
// {"2": {"0": "eyIxIjp7IjAiOiJodHRwczovL2EuY29tLyJ9fQ=="}}
// | | |
// | ---------- Value
// | |
// PrincipalKind |
// |
// SerializableKeys
//
// The value is a CSV list of Base64 encoded prinipcals. The new format for this
// principal is:
//
// Subsumed principals
// |
// ------------------------------------
// * | |
// {"2": {"0": [{"1": {"0": https://mozilla.com"}}]}}
// | | |
// -------------- Value
// |
// PrincipalKind
//
// It is possible to tell these apart by checking the type of the property noted
// in both diagrams with an asterisk. In the legacy format the type will be a
// string and in the new format it will be an array.
static bool IsLegacyFormat(const Json::Value& aValue) {
const auto& specs = std::to_string(ExpandedPrincipal::eSpecs);
return aValue.isMember(specs) && aValue[specs].isString();
}
/* static */
already_AddRefed<BasePrincipal> BasePrincipal::FromJSON(
const Json::Value& aJSON) {
int principalKind = -1;
const Json::Value* value = GetPrincipalObject(aJSON, principalKind);
if (!value) {
#ifdef DEBUG
fprintf(stderr, "Unexpected JSON principal %s\n",
aJSON.toStyledString().c_str());
#endif
MOZ_ASSERT(false, "Unexpected JSON to deserialize as a principal");
return nullptr;
}
MOZ_ASSERT(principalKind != -1,
"PrincipalKind should always be >=0 by this point");
if (principalKind == eSystemPrincipal) {
RefPtr<BasePrincipal> principal =
BasePrincipal::Cast(nsContentUtils::GetSystemPrincipal());
return principal.forget();
}
if (principalKind == eNullPrincipal) {
nsTArray<NullPrincipal::KeyVal> res = GetJSONKeys<NullPrincipal>(value);
return NullPrincipal::FromProperties(res);
}
if (principalKind == eContentPrincipal) {
nsTArray<ContentPrincipal::KeyVal> res =
GetJSONKeys<ContentPrincipal>(value);
return ContentPrincipal::FromProperties(res);
}
if (principalKind == eExpandedPrincipal) {
// Check if expanded principals is stored in the new or the old format. See
// comment for `IsLegacyFormat`.
if (IsLegacyFormat(*value)) {
nsTArray<ExpandedPrincipal::KeyVal> res =
GetJSONKeys<ExpandedPrincipal>(value);
return ExpandedPrincipal::FromProperties(res);
}
return ExpandedPrincipal::FromProperties(*value);
}
MOZ_RELEASE_ASSERT(false, "Unexpected enum to deserialize as a principal");
}
nsresult BasePrincipal::PopulateJSONObject(Json::Value& aObject) {
return NS_OK;
}
// Returns a JSON representation of the principal.
// Calling BasePrincipal::FromJSON will deserialize the JSON into
// the corresponding principal type.
nsresult BasePrincipal::ToJSON(nsACString& aJSON) {
MOZ_ASSERT(aJSON.IsEmpty(), "ToJSON only supports an empty result input");
aJSON.Truncate();
Json::Value root = Json::objectValue;
nsresult rv = ToJSON(root);
NS_ENSURE_SUCCESS(rv, rv);
static StaticAutoPtr<Json::StreamWriterBuilder> sJSONBuilderForPrincipals;
if (!sJSONBuilderForPrincipals) {
sJSONBuilderForPrincipals = new Json::StreamWriterBuilder();
(*sJSONBuilderForPrincipals)["indentation"] = "";
(*sJSONBuilderForPrincipals)["emitUTF8"] = true;
ClearOnShutdown(&sJSONBuilderForPrincipals);
}
std::string result = Json::writeString(*sJSONBuilderForPrincipals, root);
aJSON.Append(result);
if (aJSON.Length() == 0) {
MOZ_ASSERT(false, "JSON writer failed to output a principal serialization");
return NS_ERROR_UNEXPECTED;
}
return NS_OK;
}
nsresult BasePrincipal::ToJSON(Json::Value& aObject) {
static_assert(eKindMax < ArrayLength(JSONEnumKeyStrings));
nsresult rv = PopulateJSONObject(
(aObject[Json::StaticString(JSONEnumKeyStrings[Kind()])] =
Json::objectValue));
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
bool BasePrincipal::FastSubsumesIgnoringFPD(
nsIPrincipal* aOther, DocumentDomainConsideration aConsideration) {
MOZ_ASSERT(aOther);
if (Kind() == eContentPrincipal &&
!dom::ChromeUtils::IsOriginAttributesEqualIgnoringFPD(
mOriginAttributes, Cast(aOther)->mOriginAttributes)) {
return false;
}
return SubsumesInternal(aOther, aConsideration);
}
bool BasePrincipal::Subsumes(nsIPrincipal* aOther,
DocumentDomainConsideration aConsideration) {
MOZ_ASSERT(aOther);
MOZ_ASSERT_IF(Kind() == eContentPrincipal, mOriginSuffix);
// Expanded principals handle origin attributes for each of their
// sub-principals individually, null principals do only simple checks for
// pointer equality, and system principals are immune to origin attributes
// checks, so only do this check for content principals.
if (Kind() == eContentPrincipal &&
mOriginSuffix != Cast(aOther)->mOriginSuffix) {
return false;
}
return SubsumesInternal(aOther, aConsideration);
}
NS_IMETHODIMP
BasePrincipal::Equals(nsIPrincipal* aOther, bool* aResult) {
NS_ENSURE_ARG_POINTER(aOther);
*aResult = FastEquals(aOther);
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::EqualsForPermission(nsIPrincipal* aOther, bool aExactHost,
bool* aResult) {
*aResult = false;
NS_ENSURE_ARG_POINTER(aOther);
NS_ENSURE_ARG_POINTER(aResult);
auto* other = Cast(aOther);
if (Kind() != other->Kind()) {
// Principals of different kinds can't be equal.
return NS_OK;
}
if (Kind() == eSystemPrincipal) {
*aResult = this == other;
return NS_OK;
}
if (Kind() == eNullPrincipal) {
// We don't store permissions for NullPrincipals.
return NS_OK;
}
MOZ_ASSERT(Kind() == eExpandedPrincipal || Kind() == eContentPrincipal);
// Certain origin attributes should not be used to isolate permissions.
// Create a stripped copy of both OA sets to compare.
mozilla::OriginAttributes ourAttrs = mOriginAttributes;
PermissionManager::MaybeStripOriginAttributes(false, ourAttrs);
mozilla::OriginAttributes theirAttrs = aOther->OriginAttributesRef();
PermissionManager::MaybeStripOriginAttributes(false, theirAttrs);
if (ourAttrs != theirAttrs) {
return NS_OK;
}
if (mOriginNoSuffix == other->mOriginNoSuffix) {
*aResult = true;
return NS_OK;
}
// If we are matching with an exact host, we're done now - the permissions
// don't match otherwise, we need to start comparing subdomains!
if (aExactHost) {
return NS_OK;
}
nsCOMPtr<nsIURI> ourURI;
nsresult rv = GetURI(getter_AddRefs(ourURI));
NS_ENSURE_SUCCESS(rv, rv);
// Some principal types may indicate success, but still return nullptr for
// URI.
NS_ENSURE_TRUE(ourURI, NS_ERROR_FAILURE);
nsCOMPtr<nsIURI> otherURI;
rv = other->GetURI(getter_AddRefs(otherURI));
NS_ENSURE_SUCCESS(rv, rv);
NS_ENSURE_TRUE(otherURI, NS_ERROR_FAILURE);
// Compare schemes
nsAutoCString otherScheme;
rv = otherURI->GetScheme(otherScheme);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoCString ourScheme;
rv = ourURI->GetScheme(ourScheme);
NS_ENSURE_SUCCESS(rv, rv);
if (otherScheme != ourScheme) {
return NS_OK;
}
// Compare ports
int32_t otherPort;
rv = otherURI->GetPort(&otherPort);
NS_ENSURE_SUCCESS(rv, rv);
int32_t ourPort;
rv = ourURI->GetPort(&ourPort);
NS_ENSURE_SUCCESS(rv, rv);
if (otherPort != ourPort) {
return NS_OK;
}
// Check if the host or any subdomain of their host matches.
nsAutoCString otherHost;
rv = otherURI->GetHost(otherHost);
if (NS_FAILED(rv) || otherHost.IsEmpty()) {
return NS_OK;
}
nsAutoCString ourHost;
rv = ourURI->GetHost(ourHost);
if (NS_FAILED(rv) || ourHost.IsEmpty()) {
return NS_OK;
}
nsCOMPtr<nsIEffectiveTLDService> tldService =
do_GetService(NS_EFFECTIVETLDSERVICE_CONTRACTID);
if (!tldService) {
NS_ERROR("Should have a tld service!");
return NS_ERROR_FAILURE;
}
// This loop will not loop forever, as GetNextSubDomain will eventually fail
// with NS_ERROR_INSUFFICIENT_DOMAIN_LEVELS.
while (otherHost != ourHost) {
rv = tldService->GetNextSubDomain(otherHost, otherHost);
if (NS_FAILED(rv)) {
if (rv == NS_ERROR_INSUFFICIENT_DOMAIN_LEVELS) {
return NS_OK;
}
return rv;
}
}
*aResult = true;
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::EqualsConsideringDomain(nsIPrincipal* aOther, bool* aResult) {
NS_ENSURE_ARG_POINTER(aOther);
*aResult = FastEqualsConsideringDomain(aOther);
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::EqualsURI(nsIURI* aOtherURI, bool* aResult) {
*aResult = false;
nsCOMPtr<nsIURI> prinURI;
nsresult rv = GetURI(getter_AddRefs(prinURI));
if (NS_FAILED(rv) || !prinURI) {
return NS_OK;
}
return prinURI->EqualsExceptRef(aOtherURI, aResult);
}
NS_IMETHODIMP
BasePrincipal::Subsumes(nsIPrincipal* aOther, bool* aResult) {
NS_ENSURE_ARG_POINTER(aOther);
*aResult = FastSubsumes(aOther);
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::SubsumesConsideringDomain(nsIPrincipal* aOther, bool* aResult) {
NS_ENSURE_ARG_POINTER(aOther);
*aResult = FastSubsumesConsideringDomain(aOther);
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::SubsumesConsideringDomainIgnoringFPD(nsIPrincipal* aOther,
bool* aResult) {
NS_ENSURE_ARG_POINTER(aOther);
*aResult = FastSubsumesConsideringDomainIgnoringFPD(aOther);
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::CheckMayLoad(nsIURI* aURI, bool aAllowIfInheritsPrincipal) {
AssertIsOnMainThread();
return CheckMayLoadHelper(aURI, aAllowIfInheritsPrincipal, false, 0);
}
NS_IMETHODIMP
BasePrincipal::CheckMayLoadWithReporting(nsIURI* aURI,
bool aAllowIfInheritsPrincipal,
uint64_t aInnerWindowID) {
AssertIsOnMainThread();
return CheckMayLoadHelper(aURI, aAllowIfInheritsPrincipal, true,
aInnerWindowID);
}
nsresult BasePrincipal::CheckMayLoadHelper(nsIURI* aURI,
bool aAllowIfInheritsPrincipal,
bool aReport,
uint64_t aInnerWindowID) {
AssertIsOnMainThread(); // Accesses non-threadsafe URI flags and the
// non-threadsafe ExtensionPolicyService
NS_ENSURE_ARG_POINTER(aURI);
MOZ_ASSERT(
aReport || aInnerWindowID == 0,
"Why do we have an inner window id if we're not supposed to report?");
// Check the internal method first, which allows us to quickly approve loads
// for the System Principal.
if (MayLoadInternal(aURI)) {
return NS_OK;
}
nsresult rv;
if (aAllowIfInheritsPrincipal) {
// If the caller specified to allow loads of URIs that inherit
// our principal, allow the load if this URI inherits its principal.
bool doesInheritSecurityContext;
rv = NS_URIChainHasFlags(aURI,
nsIProtocolHandler::URI_INHERITS_SECURITY_CONTEXT,
&doesInheritSecurityContext);
if (NS_SUCCEEDED(rv) && doesInheritSecurityContext) {
return NS_OK;
}
}
// Web Accessible Resources in MV2 Extensions are marked with
// URI_FETCHABLE_BY_ANYONE
bool fetchableByAnyone;
rv = NS_URIChainHasFlags(aURI, nsIProtocolHandler::URI_FETCHABLE_BY_ANYONE,
&fetchableByAnyone);
if (NS_SUCCEEDED(rv) && fetchableByAnyone) {
return NS_OK;
}
// Get the principal uri for the last flag check or error.
nsCOMPtr<nsIURI> prinURI;
rv = GetURI(getter_AddRefs(prinURI));
if (!(NS_SUCCEEDED(rv) && prinURI)) {
return NS_ERROR_DOM_BAD_URI;
}
// If MV3 Extension uris are web accessible by this principal it is allowed to
// load.
bool maybeWebAccessible = false;
NS_URIChainHasFlags(aURI, nsIProtocolHandler::WEBEXT_URI_WEB_ACCESSIBLE,
&maybeWebAccessible);
NS_ENSURE_SUCCESS(rv, rv);
if (maybeWebAccessible) {
bool isWebAccessible = false;
rv = ExtensionPolicyService::GetSingleton().SourceMayLoadExtensionURI(
prinURI, aURI, &isWebAccessible);
if (NS_SUCCEEDED(rv) && isWebAccessible) {
return NS_OK;
}
}
if (aReport) {
nsScriptSecurityManager::ReportError(
"CheckSameOriginError", prinURI, aURI,
mOriginAttributes.mPrivateBrowsingId > 0, aInnerWindowID);
}
return NS_ERROR_DOM_BAD_URI;
}
NS_IMETHODIMP
BasePrincipal::IsThirdPartyURI(nsIURI* aURI, bool* aRes) {
if (IsSystemPrincipal() || (AddonPolicyCore() && AddonAllowsLoad(aURI))) {
*aRes = false;
return NS_OK;
}
*aRes = true;
// If we do not have a URI its always 3rd party.
nsCOMPtr<nsIURI> prinURI;
nsresult rv = GetURI(getter_AddRefs(prinURI));
if (NS_FAILED(rv) || !prinURI) {
return NS_OK;
}
ThirdPartyUtil* thirdPartyUtil = ThirdPartyUtil::GetInstance();
return thirdPartyUtil->IsThirdPartyURI(prinURI, aURI, aRes);
}
NS_IMETHODIMP
BasePrincipal::IsThirdPartyPrincipal(nsIPrincipal* aPrin, bool* aRes) {
*aRes = true;
nsCOMPtr<nsIURI> prinURI;
nsresult rv = GetURI(getter_AddRefs(prinURI));
if (NS_FAILED(rv) || !prinURI) {
return NS_OK;
}
return aPrin->IsThirdPartyURI(prinURI, aRes);
}
NS_IMETHODIMP
BasePrincipal::IsThirdPartyChannel(nsIChannel* aChan, bool* aRes) {
AssertIsOnMainThread();
if (IsSystemPrincipal()) {
// Nothing is 3rd party to the system principal.
*aRes = false;
return NS_OK;
}
nsCOMPtr<nsIURI> prinURI;
GetURI(getter_AddRefs(prinURI));
ThirdPartyUtil* thirdPartyUtil = ThirdPartyUtil::GetInstance();
return thirdPartyUtil->IsThirdPartyChannel(aChan, prinURI, aRes);
}
NS_IMETHODIMP
BasePrincipal::IsSameOrigin(nsIURI* aURI, bool* aRes) {
*aRes = false;
nsCOMPtr<nsIURI> prinURI;
nsresult rv = GetURI(getter_AddRefs(prinURI));
if (NS_FAILED(rv) || !prinURI) {
// Note that expanded and system principals return here, because they have
// no URI.
return NS_OK;
}
*aRes = nsScriptSecurityManager::SecurityCompareURIs(prinURI, aURI);
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::IsL10nAllowed(nsIURI* aURI, bool* aRes) {
AssertIsOnMainThread(); // URI_DANGEROUS_TO_LOAD is not threadsafe to query.
*aRes = false;
if (nsContentUtils::IsErrorPage(aURI)) {
*aRes = true;
return NS_OK;
}
// The system principal is always allowed.
if (IsSystemPrincipal()) {
*aRes = true;
return NS_OK;
}
nsCOMPtr<nsIURI> uri;
nsresult rv = GetURI(getter_AddRefs(uri));
NS_ENSURE_SUCCESS(rv, NS_OK);
bool hasFlags;
// Allow access to uris that cannot be loaded by web content.
rv = NS_URIChainHasFlags(uri, nsIProtocolHandler::URI_DANGEROUS_TO_LOAD,
&hasFlags);
NS_ENSURE_SUCCESS(rv, NS_OK);
if (hasFlags) {
*aRes = true;
return NS_OK;
}
// UI resources also get access.
rv = NS_URIChainHasFlags(uri, nsIProtocolHandler::URI_IS_UI_RESOURCE,
&hasFlags);
NS_ENSURE_SUCCESS(rv, NS_OK);
if (hasFlags) {
*aRes = true;
return NS_OK;
}
auto policy = AddonPolicyCore();
*aRes = (policy && policy->IsPrivileged());
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::AllowsRelaxStrictFileOriginPolicy(nsIURI* aURI, bool* aRes) {
*aRes = false;
nsCOMPtr<nsIURI> prinURI;
nsresult rv = GetURI(getter_AddRefs(prinURI));
if (NS_FAILED(rv) || !prinURI) {
return NS_OK;
}
*aRes = NS_RelaxStrictFileOriginPolicy(aURI, prinURI);
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::GetPrefLightCacheKey(nsIURI* aURI, bool aWithCredentials,
const OriginAttributes& aOriginAttributes,
nsACString& _retval) {
_retval.Truncate();
constexpr auto space = " "_ns;
nsCOMPtr<nsIURI> uri;
nsresult rv = GetURI(getter_AddRefs(uri));
NS_ENSURE_SUCCESS(rv, rv);
nsAutoCString scheme, host, port;
if (uri) {
uri->GetScheme(scheme);
uri->GetHost(host);
port.AppendInt(NS_GetRealPort(uri));
}
if (aWithCredentials) {
_retval.AssignLiteral("cred");
} else {
_retval.AssignLiteral("nocred");
}
nsAutoCString spec;
rv = aURI->GetSpec(spec);
NS_ENSURE_SUCCESS(rv, rv);
nsAutoCString originAttributesSuffix;
aOriginAttributes.CreateSuffix(originAttributesSuffix);
_retval.Append(space + scheme + space + host + space + port + space + spec +
space + originAttributesSuffix);
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::HasFirstpartyStorageAccess(mozIDOMWindow* aCheckWindow,
uint32_t* aRejectedReason,
bool* aOutAllowed) {
AssertIsOnMainThread();
*aRejectedReason = 0;
*aOutAllowed = false;
nsPIDOMWindowInner* win = nsPIDOMWindowInner::From(aCheckWindow);
nsCOMPtr<nsIURI> uri;
nsresult rv = GetURI(getter_AddRefs(uri));
if (NS_FAILED(rv)) {
return rv;
}
*aOutAllowed = ShouldAllowAccessFor(win, uri, aRejectedReason);
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::GetIsNullPrincipal(bool* aResult) {
*aResult = Kind() == eNullPrincipal;
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::GetIsContentPrincipal(bool* aResult) {
*aResult = Kind() == eContentPrincipal;
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::GetIsExpandedPrincipal(bool* aResult) {
*aResult = Kind() == eExpandedPrincipal;
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::GetAsciiSpec(nsACString& aSpec) {
aSpec.Truncate();
nsCOMPtr<nsIURI> prinURI;
nsresult rv = GetURI(getter_AddRefs(prinURI));
if (NS_FAILED(rv) || !prinURI) {
return NS_OK;
}
return prinURI->GetAsciiSpec(aSpec);
}
NS_IMETHODIMP
BasePrincipal::GetSpec(nsACString& aSpec) {
aSpec.Truncate();
nsCOMPtr<nsIURI> prinURI;
nsresult rv = GetURI(getter_AddRefs(prinURI));
if (NS_FAILED(rv) || !prinURI) {
return NS_OK;
}
return prinURI->GetSpec(aSpec);
}
NS_IMETHODIMP
BasePrincipal::GetAsciiHost(nsACString& aHost) {
aHost.Truncate();
nsCOMPtr<nsIURI> prinURI;
nsresult rv = GetURI(getter_AddRefs(prinURI));
if (NS_FAILED(rv) || !prinURI) {
return NS_OK;
}
return prinURI->GetAsciiHost(aHost);
}
NS_IMETHODIMP
BasePrincipal::GetExposablePrePath(nsACString& aPrepath) {
aPrepath.Truncate();
nsCOMPtr<nsIURI> prinURI;
nsresult rv = GetURI(getter_AddRefs(prinURI));
if (NS_FAILED(rv) || !prinURI) {
return NS_OK;
}
nsCOMPtr<nsIURI> exposableURI = net::nsIOService::CreateExposableURI(prinURI);
return exposableURI->GetDisplayPrePath(aPrepath);
}
NS_IMETHODIMP
BasePrincipal::GetExposableSpec(nsACString& aSpec) {
aSpec.Truncate();
nsCOMPtr<nsIURI> prinURI;
nsresult rv = GetURI(getter_AddRefs(prinURI));
if (NS_FAILED(rv) || !prinURI) {
return NS_OK;
}
nsCOMPtr<nsIURI> clone;
rv = NS_MutateURI(prinURI)
.SetQuery(""_ns)
.SetRef(""_ns)
.SetUserPass(""_ns)
.Finalize(clone);
NS_ENSURE_SUCCESS(rv, rv);
return clone->GetAsciiSpec(aSpec);
}
NS_IMETHODIMP
BasePrincipal::GetPrePath(nsACString& aPath) {
aPath.Truncate();
nsCOMPtr<nsIURI> prinURI;
nsresult rv = GetURI(getter_AddRefs(prinURI));
if (NS_FAILED(rv) || !prinURI) {
return NS_OK;
}
return prinURI->GetPrePath(aPath);
}
NS_IMETHODIMP
BasePrincipal::GetFilePath(nsACString& aPath) {
aPath.Truncate();
nsCOMPtr<nsIURI> prinURI;
nsresult rv = GetURI(getter_AddRefs(prinURI));
if (NS_FAILED(rv) || !prinURI) {
return NS_OK;
}
return prinURI->GetFilePath(aPath);
}
NS_IMETHODIMP
BasePrincipal::GetIsSystemPrincipal(bool* aResult) {
*aResult = IsSystemPrincipal();
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::GetIsAddonOrExpandedAddonPrincipal(bool* aResult) {
*aResult = AddonPolicyCore() || ContentScriptAddonPolicyCore();
return NS_OK;
}
NS_IMETHODIMP BasePrincipal::GetIsOnion(bool* aIsOnion) {
*aIsOnion = false;
nsCOMPtr<nsIURI> prinURI;
nsresult rv = GetURI(getter_AddRefs(prinURI));
if (NS_FAILED(rv) || !prinURI) {
return NS_OK;
}
nsAutoCString host;
rv = prinURI->GetHost(host);
if (NS_FAILED(rv)) {
return NS_OK;
}
*aIsOnion = StringEndsWith(host, ".onion"_ns);
return NS_OK;
}
NS_IMETHODIMP BasePrincipal::GetIsIpAddress(bool* aIsIpAddress) {
*aIsIpAddress = false;
nsCOMPtr<nsIURI> prinURI;
nsresult rv = GetURI(getter_AddRefs(prinURI));
if (NS_FAILED(rv) || !prinURI) {
return NS_OK;
}
nsAutoCString host;
rv = prinURI->GetHost(host);
if (NS_FAILED(rv)) {
return NS_OK;
}
PRNetAddr prAddr;
memset(&prAddr, 0, sizeof(prAddr));
if (PR_StringToNetAddr(host.get(), &prAddr) == PR_SUCCESS) {
*aIsIpAddress = true;
}
return NS_OK;
}
NS_IMETHODIMP BasePrincipal::GetIsLocalIpAddress(bool* aIsIpAddress) {
*aIsIpAddress = false;
nsCOMPtr<nsIURI> prinURI;
nsresult rv = GetURI(getter_AddRefs(prinURI));
if (NS_FAILED(rv) || !prinURI) {
return NS_OK;
}
nsCOMPtr<nsIIOService> ioService = do_GetIOService(&rv);
if (NS_FAILED(rv) || !ioService) {
return NS_OK;
}
rv = ioService->HostnameIsLocalIPAddress(prinURI, aIsIpAddress);
if (NS_FAILED(rv)) {
*aIsIpAddress = false;
}
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::GetScheme(nsACString& aScheme) {
aScheme.Truncate();
nsCOMPtr<nsIURI> prinURI;
nsresult rv = GetURI(getter_AddRefs(prinURI));
if (NS_FAILED(rv) || !prinURI) {
return NS_OK;
}
return prinURI->GetScheme(aScheme);
}
NS_IMETHODIMP
BasePrincipal::SchemeIs(const char* aScheme, bool* aResult) {
*aResult = false;
nsCOMPtr<nsIURI> prinURI;
nsresult rv = GetURI(getter_AddRefs(prinURI));
if (NS_WARN_IF(NS_FAILED(rv)) || !prinURI) {
return NS_OK;
}
*aResult = prinURI->SchemeIs(aScheme);
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::IsURIInPrefList(const char* aPref, bool* aResult) {
AssertIsOnMainThread();
*aResult = false;
nsCOMPtr<nsIURI> prinURI;
nsresult rv = GetURI(getter_AddRefs(prinURI));
if (NS_FAILED(rv) || !prinURI) {
return NS_OK;
}
*aResult = nsContentUtils::IsURIInPrefList(prinURI, aPref);
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::IsURIInList(const nsACString& aList, bool* aResult) {
*aResult = false;
nsCOMPtr<nsIURI> prinURI;
nsresult rv = GetURI(getter_AddRefs(prinURI));
if (NS_FAILED(rv) || !prinURI) {
return NS_OK;
}
*aResult = nsContentUtils::IsURIInList(prinURI, nsCString(aList));
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::IsContentAccessibleAboutURI(bool* aResult) {
*aResult = false;
nsCOMPtr<nsIURI> prinURI;
nsresult rv = GetURI(getter_AddRefs(prinURI));
if (NS_FAILED(rv) || !prinURI) {
return NS_OK;
}
if (!prinURI->SchemeIs("about")) {
return NS_OK;
}
*aResult = NS_IsContentAccessibleAboutURI(prinURI);
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::GetIsOriginPotentiallyTrustworthy(bool* aResult) {
AssertIsOnMainThread();
*aResult = false;
nsCOMPtr<nsIURI> uri;
nsresult rv = GetURI(getter_AddRefs(uri));
if (NS_FAILED(rv) || !uri) {
return NS_OK;
}
*aResult = nsMixedContentBlocker::IsPotentiallyTrustworthyOrigin(uri);
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::GetIsLoopbackHost(bool* aRes) {
AssertIsOnMainThread();
*aRes = false;
nsAutoCString host;
nsresult rv = GetHost(host);
// Swallow potential failure as this method is infallible.
if (NS_FAILED(rv)) {
return NS_OK;
}
*aRes = nsMixedContentBlocker::IsPotentiallyTrustworthyLoopbackHost(host);
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::GetAboutModuleFlags(uint32_t* flags) {
AssertIsOnMainThread();
*flags = 0;
nsCOMPtr<nsIURI> prinURI;
nsresult rv = GetURI(getter_AddRefs(prinURI));
if (NS_FAILED(rv) || !prinURI) {
return NS_ERROR_NOT_AVAILABLE;
}
if (!prinURI->SchemeIs("about")) {
return NS_OK;
}
nsCOMPtr<nsIAboutModule> aboutModule;
rv = NS_GetAboutModule(prinURI, getter_AddRefs(aboutModule));
if (NS_FAILED(rv) || !aboutModule) {
return rv;
}
return aboutModule->GetURIFlags(prinURI, flags);
}
NS_IMETHODIMP
BasePrincipal::GetOriginAttributes(JSContext* aCx,
JS::MutableHandle<JS::Value> aVal) {
if (NS_WARN_IF(!ToJSValue(aCx, mOriginAttributes, aVal))) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::GetOriginSuffix(nsACString& aOriginAttributes) {
MOZ_ASSERT(mOriginSuffix);
mOriginSuffix->ToUTF8String(aOriginAttributes);
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::GetUserContextId(uint32_t* aUserContextId) {
*aUserContextId = UserContextId();
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::GetPrivateBrowsingId(uint32_t* aPrivateBrowsingId) {
*aPrivateBrowsingId = PrivateBrowsingId();
return NS_OK;
}
NS_IMETHODIMP
BasePrincipal::GetIsInIsolatedMozBrowserElement(
bool* aIsInIsolatedMozBrowserElement) {
*aIsInIsolatedMozBrowserElement = IsInIsolatedMozBrowserElement();
return NS_OK;
}
nsresult BasePrincipal::GetAddonPolicy(
extensions::WebExtensionPolicy** aResult) {
AssertIsOnMainThread();
RefPtr<extensions::WebExtensionPolicy> policy(AddonPolicy());
policy.forget(aResult);
return NS_OK;
}
nsresult BasePrincipal::GetContentScriptAddonPolicy(
extensions::WebExtensionPolicy** aResult) {
RefPtr<extensions::WebExtensionPolicy> policy(ContentScriptAddonPolicy());
policy.forget(aResult);
return NS_OK;
}
extensions::WebExtensionPolicy* BasePrincipal::AddonPolicy() {
AssertIsOnMainThread();
RefPtr<extensions::WebExtensionPolicyCore> core = AddonPolicyCore();
return core ? core->GetMainThreadPolicy() : nullptr;
}
RefPtr<extensions::WebExtensionPolicyCore> BasePrincipal::AddonPolicyCore() {
if (Is<ContentPrincipal>()) {
return As<ContentPrincipal>()->AddonPolicyCore();
}
return nullptr;
}
bool BasePrincipal::AddonHasPermission(const nsAtom* aPerm) {
if (auto policy = AddonPolicyCore()) {
return policy->HasPermission(aPerm);
}
return false;
}
nsIPrincipal* BasePrincipal::PrincipalToInherit(nsIURI* aRequestedURI) {
if (Is<ExpandedPrincipal>()) {
return As<ExpandedPrincipal>()->PrincipalToInherit(aRequestedURI);
}
return this;
}
bool BasePrincipal::OverridesCSP(nsIPrincipal* aDocumentPrincipal) {
MOZ_ASSERT(aDocumentPrincipal);
// Expanded principals override CSP if and only if they subsume the document
// principal.
if (mKind == eExpandedPrincipal) {
return FastSubsumes(aDocumentPrincipal);
}
// Extension principals always override the CSP of non-extension principals.
// This is primarily for the sake of their stylesheets, which are usually
// loaded from channels and cannot have expanded principals.
return (AddonPolicyCore() &&
!BasePrincipal::Cast(aDocumentPrincipal)->AddonPolicyCore());
}
already_AddRefed<BasePrincipal> BasePrincipal::CreateContentPrincipal(
nsIURI* aURI, const OriginAttributes& aAttrs, nsIURI* aInitialDomain) {
MOZ_ASSERT(aURI);
nsAutoCString originNoSuffix;
nsresult rv =
ContentPrincipal::GenerateOriginNoSuffixFromURI(aURI, originNoSuffix);
if (NS_FAILED(rv)) {
// If the generation of the origin fails, we still want to have a valid
// principal. Better to return a null principal here.
return NullPrincipal::Create(aAttrs);
}
return CreateContentPrincipal(aURI, aAttrs, originNoSuffix, aInitialDomain);
}
already_AddRefed<BasePrincipal> BasePrincipal::CreateContentPrincipal(
nsIURI* aURI, const OriginAttributes& aAttrs,
const nsACString& aOriginNoSuffix, nsIURI* aInitialDomain) {
MOZ_ASSERT(aURI);
MOZ_ASSERT(!aOriginNoSuffix.IsEmpty());
// If the URI is supposed to inherit the security context of whoever loads it,
// we shouldn't make a content principal for it.
bool inheritsPrincipal;
nsresult rv = NS_URIChainHasFlags(
aURI, nsIProtocolHandler::URI_INHERITS_SECURITY_CONTEXT,
&inheritsPrincipal);
if (NS_FAILED(rv) || inheritsPrincipal) {
return NullPrincipal::Create(aAttrs);
}
// Check whether the URI knows what its principal is supposed to be.
#if defined(MOZ_THUNDERBIRD) || defined(MOZ_SUITE)
nsCOMPtr<nsIURIWithSpecialOrigin> uriWithSpecialOrigin =
do_QueryInterface(aURI);
if (uriWithSpecialOrigin) {
nsCOMPtr<nsIURI> origin;
rv = uriWithSpecialOrigin->GetOrigin(getter_AddRefs(origin));
if (NS_WARN_IF(NS_FAILED(rv))) {
return nullptr;
}
MOZ_ASSERT(origin);
OriginAttributes attrs;
RefPtr<BasePrincipal> principal =
CreateContentPrincipal(origin, attrs, aInitialDomain);
return principal.forget();
}
#endif
nsCOMPtr<nsIPrincipal> blobPrincipal;
if (dom::BlobURLProtocolHandler::GetBlobURLPrincipal(
aURI, getter_AddRefs(blobPrincipal))) {
MOZ_ASSERT(blobPrincipal);
MOZ_ASSERT(!aInitialDomain,
"an initial domain for a blob URI makes no sense");
RefPtr<BasePrincipal> principal = Cast(blobPrincipal);
return principal.forget();
}
// Mint a content principal.