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-rw-r--r--caps/BasePrincipal.cpp1625
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diff --git a/caps/BasePrincipal.cpp b/caps/BasePrincipal.cpp
new file mode 100644
index 0000000000..97924b23c5
--- /dev/null
+++ b/caps/BasePrincipal.cpp
@@ -0,0 +1,1625 @@
+/* -*- 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::GetAsciiOrigin(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::GetASCIIOrigin(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.
+ NS_ENSURE_SUCCESS(rv, 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.
+ RefPtr<ContentPrincipal> principal =
+ new ContentPrincipal(aURI, aAttrs, aOriginNoSuffix, aInitialDomain);
+ return principal.forget();
+}
+
+already_AddRefed<BasePrincipal> BasePrincipal::CreateContentPrincipal(
+ const nsACString& aOrigin) {
+ MOZ_ASSERT(!StringBeginsWith(aOrigin, "["_ns),
+ "CreateContentPrincipal does not support System and Expanded "
+ "principals");
+
+ MOZ_ASSERT(
+ !StringBeginsWith(aOrigin, nsLiteralCString(NS_NULLPRINCIPAL_SCHEME ":")),
+ "CreateContentPrincipal does not support NullPrincipal");
+
+ nsAutoCString originNoSuffix;
+ OriginAttributes attrs;
+ if (!attrs.PopulateFromOrigin(aOrigin, originNoSuffix)) {
+ return nullptr;
+ }
+
+ nsCOMPtr<nsIURI> uri;
+ nsresult rv = NS_NewURI(getter_AddRefs(uri), originNoSuffix);
+ NS_ENSURE_SUCCESS(rv, nullptr);
+
+ return BasePrincipal::CreateContentPrincipal(uri, attrs);
+}
+
+already_AddRefed<BasePrincipal> BasePrincipal::CloneForcingOriginAttributes(
+ const OriginAttributes& aOriginAttributes) {
+ if (NS_WARN_IF(!IsContentPrincipal())) {
+ return nullptr;
+ }
+
+ nsAutoCString originNoSuffix;
+ nsresult rv = GetOriginNoSuffix(originNoSuffix);
+ NS_ENSURE_SUCCESS(rv, nullptr);
+
+ nsCOMPtr<nsIURI> uri;
+ MOZ_ALWAYS_SUCCEEDS(GetURI(getter_AddRefs(uri)));
+
+ // XXX: This does not copy over the domain. Should it?
+ RefPtr<ContentPrincipal> copy =
+ new ContentPrincipal(uri, aOriginAttributes, originNoSuffix, nullptr);
+ return copy.forget();
+}
+
+extensions::WebExtensionPolicy* BasePrincipal::ContentScriptAddonPolicy() {
+ AssertIsOnMainThread();
+ RefPtr<extensions::WebExtensionPolicyCore> core =
+ ContentScriptAddonPolicyCore();
+ return core ? core->GetMainThreadPolicy() : nullptr;
+}
+
+RefPtr<extensions::WebExtensionPolicyCore>
+BasePrincipal::ContentScriptAddonPolicyCore() {
+ if (!Is<ExpandedPrincipal>()) {
+ return nullptr;
+ }
+
+ auto* expanded = As<ExpandedPrincipal>();
+ for (const auto& prin : expanded->AllowList()) {
+ if (RefPtr<extensions::WebExtensionPolicyCore> policy =
+ BasePrincipal::Cast(prin)->AddonPolicyCore()) {
+ return policy;
+ }
+ }
+
+ return nullptr;
+}
+
+bool BasePrincipal::AddonAllowsLoad(nsIURI* aURI,
+ bool aExplicit /* = false */) {
+ if (Is<ExpandedPrincipal>()) {
+ return As<ExpandedPrincipal>()->AddonAllowsLoad(aURI, aExplicit);
+ }
+ if (auto policy = AddonPolicyCore()) {
+ return policy->CanAccessURI(aURI, aExplicit);
+ }
+ return false;
+}
+
+NS_IMETHODIMP
+BasePrincipal::GetLocalStorageQuotaKey(nsACString& aKey) {
+ aKey.Truncate();
+
+ nsCOMPtr<nsIURI> uri;
+ nsresult rv = GetURI(getter_AddRefs(uri));
+ NS_ENSURE_SUCCESS(rv, rv);
+ NS_ENSURE_TRUE(uri, NS_ERROR_UNEXPECTED);
+
+ // The special handling of the file scheme should be consistent with
+ // GetStorageOriginKey.
+
+ nsAutoCString baseDomain;
+ rv = uri->GetAsciiHost(baseDomain);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ if (baseDomain.IsEmpty() && uri->SchemeIs("file")) {
+ nsCOMPtr<nsIURL> url = do_QueryInterface(uri, &rv);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ rv = url->GetDirectory(baseDomain);
+ NS_ENSURE_SUCCESS(rv, rv);
+ } else {
+ nsCOMPtr<nsIEffectiveTLDService> eTLDService(
+ do_GetService(NS_EFFECTIVETLDSERVICE_CONTRACTID, &rv));
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ nsAutoCString eTLDplusOne;
+ rv = eTLDService->GetBaseDomain(uri, 0, eTLDplusOne);
+ if (NS_SUCCEEDED(rv)) {
+ baseDomain = eTLDplusOne;
+ } else if (rv == NS_ERROR_HOST_IS_IP_ADDRESS ||
+ rv == NS_ERROR_INSUFFICIENT_DOMAIN_LEVELS) {
+ rv = NS_OK;
+ }
+ NS_ENSURE_SUCCESS(rv, rv);
+ }
+
+ OriginAttributesRef().CreateSuffix(aKey);
+
+ nsAutoCString subdomainsDBKey;
+ rv = dom::StorageUtils::CreateReversedDomain(baseDomain, subdomainsDBKey);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ aKey.Append(':');
+ aKey.Append(subdomainsDBKey);
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+BasePrincipal::GetNextSubDomainPrincipal(
+ nsIPrincipal** aNextSubDomainPrincipal) {
+ nsCOMPtr<nsIURI> uri;
+ nsresult rv = GetURI(getter_AddRefs(uri));
+ if (NS_FAILED(rv) || !uri) {
+ return NS_OK;
+ }
+
+ nsAutoCString host;
+ rv = uri->GetHost(host);
+ if (NS_FAILED(rv) || host.IsEmpty()) {
+ return NS_OK;
+ }
+
+ nsCString subDomain;
+ rv = nsEffectiveTLDService::GetInstance()->GetNextSubDomain(host, subDomain);
+
+ if (NS_FAILED(rv) || subDomain.IsEmpty()) {
+ return NS_OK;
+ }
+
+ nsCOMPtr<nsIURI> subDomainURI;
+ rv = NS_MutateURI(uri).SetHost(subDomain).Finalize(subDomainURI);
+ if (NS_FAILED(rv) || !subDomainURI) {
+ return NS_OK;
+ }
+ // Copy the attributes over
+ mozilla::OriginAttributes attrs = OriginAttributesRef();
+
+ if (!StaticPrefs::permissions_isolateBy_userContext()) {
+ // Disable userContext for permissions.
+ attrs.StripAttributes(mozilla::OriginAttributes::STRIP_USER_CONTEXT_ID);
+ }
+ RefPtr<nsIPrincipal> principal =
+ mozilla::BasePrincipal::CreateContentPrincipal(subDomainURI, attrs);
+
+ if (!principal) {
+ return NS_OK;
+ }
+ principal.forget(aNextSubDomainPrincipal);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+BasePrincipal::GetStorageOriginKey(nsACString& aOriginKey) {
+ aOriginKey.Truncate();
+
+ nsCOMPtr<nsIURI> uri;
+ nsresult rv = GetURI(getter_AddRefs(uri));
+ NS_ENSURE_SUCCESS(rv, rv);
+ NS_ENSURE_TRUE(uri, NS_ERROR_UNEXPECTED);
+
+ // The special handling of the file scheme should be consistent with
+ // GetLocalStorageQuotaKey.
+
+ nsAutoCString domainOrigin;
+ rv = uri->GetAsciiHost(domainOrigin);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ if (domainOrigin.IsEmpty()) {
+ // For the file:/// protocol use the exact directory as domain.
+ if (uri->SchemeIs("file")) {
+ nsCOMPtr<nsIURL> url = do_QueryInterface(uri, &rv);
+ NS_ENSURE_SUCCESS(rv, rv);
+ rv = url->GetDirectory(domainOrigin);
+ NS_ENSURE_SUCCESS(rv, rv);
+ }
+ }
+
+ // Append reversed domain
+ nsAutoCString reverseDomain;
+ rv = dom::StorageUtils::CreateReversedDomain(domainOrigin, reverseDomain);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ aOriginKey.Append(reverseDomain);
+
+ // Append scheme
+ nsAutoCString scheme;
+ rv = uri->GetScheme(scheme);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ aOriginKey.Append(':');
+ aOriginKey.Append(scheme);
+
+ // Append port if any
+ int32_t port = NS_GetRealPort(uri);
+ if (port != -1) {
+ aOriginKey.Append(nsPrintfCString(":%d", port));
+ }
+
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+BasePrincipal::GetIsScriptAllowedByPolicy(bool* aIsScriptAllowedByPolicy) {
+ AssertIsOnMainThread();
+ *aIsScriptAllowedByPolicy = false;
+ nsCOMPtr<nsIURI> prinURI;
+ nsresult rv = GetURI(getter_AddRefs(prinURI));
+ if (NS_FAILED(rv) || !prinURI) {
+ return NS_OK;
+ }
+ nsIScriptSecurityManager* ssm = nsContentUtils::GetSecurityManager();
+ if (!ssm) {
+ return NS_ERROR_UNEXPECTED;
+ }
+ return ssm->PolicyAllowsScript(prinURI, aIsScriptAllowedByPolicy);
+}
+
+bool SiteIdentifier::Equals(const SiteIdentifier& aOther) const {
+ MOZ_ASSERT(IsInitialized());
+ MOZ_ASSERT(aOther.IsInitialized());
+ return mPrincipal->FastEquals(aOther.mPrincipal);
+}
+
+NS_IMETHODIMP
+BasePrincipal::CreateReferrerInfo(mozilla::dom::ReferrerPolicy aReferrerPolicy,
+ nsIReferrerInfo** _retval) {
+ nsCOMPtr<nsIURI> prinURI;
+ RefPtr<dom::ReferrerInfo> info;
+ nsresult rv = GetURI(getter_AddRefs(prinURI));
+ if (NS_FAILED(rv) || !prinURI) {
+ info = new dom::ReferrerInfo(nullptr);
+ info.forget(_retval);
+ return NS_OK;
+ }
+ info = new dom::ReferrerInfo(prinURI, aReferrerPolicy);
+ info.forget(_retval);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+BasePrincipal::GetPrecursorPrincipal(nsIPrincipal** aPrecursor) {
+ *aPrecursor = nullptr;
+ return NS_OK;
+}
+
+NS_IMPL_ADDREF(BasePrincipal::Deserializer)
+NS_IMPL_RELEASE(BasePrincipal::Deserializer)
+
+NS_INTERFACE_MAP_BEGIN(BasePrincipal::Deserializer)
+ NS_INTERFACE_MAP_ENTRY(nsISupports)
+ NS_INTERFACE_MAP_ENTRY(nsISerializable)
+ if (mPrincipal) {
+ return mPrincipal->QueryInterface(aIID, aInstancePtr);
+ } else
+NS_INTERFACE_MAP_END
+
+NS_IMETHODIMP
+BasePrincipal::Deserializer::Write(nsIObjectOutputStream* aStream) {
+ // Read is used still for legacy principals
+ MOZ_RELEASE_ASSERT(false, "Old style serialization is removed");
+ return NS_OK;
+}
+
+/* static */
+void BasePrincipal::SetJSONValue(Json::Value& aObject, const char* aKey,
+ const nsCString& aValue) {
+ aObject[Json::StaticString(aKey)] =
+ Json::Value(aValue.BeginReading(), aValue.EndReading());
+}
+
+} // namespace mozilla
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-25 05:45:24 +0000