Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1114 insertions, 0 deletions

diff --git a/dom/credentialmanagement/identity/IdentityCredential.cpp b/dom/credentialmanagement/identity/IdentityCredential.cpp
new file mode 100644
index 0000000000..182974e81d
--- /dev/null
+++ b/dom/credentialmanagement/identity/IdentityCredential.cpp
@@ -0,0 +1,1114 @@
+/* -*- 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/dom/ContentChild.h"
+#include "mozilla/dom/Document.h"
+#include "mozilla/dom/Fetch.h"
+#include "mozilla/dom/IdentityCredential.h"
+#include "mozilla/dom/IdentityNetworkHelpers.h"
+#include "mozilla/dom/Promise.h"
+#include "mozilla/dom/Promise-inl.h"
+#include "mozilla/dom/Request.h"
+#include "mozilla/dom/WindowGlobalChild.h"
+#include "mozilla/Components.h"
+#include "mozilla/ExpandedPrincipal.h"
+#include "mozilla/NullPrincipal.h"
+#include "nsEffectiveTLDService.h"
+#include "nsIGlobalObject.h"
+#include "nsIIdentityCredentialPromptService.h"
+#include "nsIIdentityCredentialStorageService.h"
+#include "nsITimer.h"
+#include "nsIXPConnect.h"
+#include "nsNetUtil.h"
+#include "nsStringStream.h"
+#include "nsTArray.h"
+#include "nsURLHelper.h"
+
+namespace mozilla::dom {
+
+IdentityCredential::~IdentityCredential() = default;
+
+JSObject* IdentityCredential::WrapObject(JSContext* aCx,
+                                         JS::Handle<JSObject*> aGivenProto) {
+  return IdentityCredential_Binding::Wrap(aCx, this, aGivenProto);
+}
+
+IdentityCredential::IdentityCredential(nsPIDOMWindowInner* aParent)
+    : Credential(aParent) {}
+
+void IdentityCredential::CopyValuesFrom(const IPCIdentityCredential& aOther) {
+  this->SetToken(aOther.token());
+  this->SetId(aOther.id());
+  this->SetType(aOther.type());
+}
+
+IPCIdentityCredential IdentityCredential::MakeIPCIdentityCredential() {
+  nsString token, id, type;
+  GetToken(token);
+  GetId(id);
+  GetType(type);
+  IPCIdentityCredential result;
+  result.token() = token;
+  result.id() = id;
+  result.type() = type;
+  return result;
+}
+
+void IdentityCredential::GetToken(nsAString& aToken) const {
+  aToken.Assign(mToken);
+}
+void IdentityCredential::SetToken(const nsAString& aToken) {
+  mToken.Assign(aToken);
+}
+
+// static
+RefPtr<IdentityCredential::GetIdentityCredentialPromise>
+IdentityCredential::DiscoverFromExternalSource(
+    nsPIDOMWindowInner* aParent, const CredentialRequestOptions& aOptions,
+    bool aSameOriginWithAncestors) {
+  MOZ_ASSERT(XRE_IsContentProcess());
+  MOZ_ASSERT(aParent);
+  // Prevent origin confusion by requiring no cross domain iframes
+  // in this one's ancestry
+  if (!aSameOriginWithAncestors) {
+    return IdentityCredential::GetIdentityCredentialPromise::CreateAndReject(
+        NS_ERROR_DOM_NOT_ALLOWED_ERR, __func__);
+  }
+
+  Document* parentDocument = aParent->GetExtantDoc();
+  if (!parentDocument) {
+    return IdentityCredential::GetIdentityCredentialPromise::CreateAndReject(
+        NS_ERROR_FAILURE, __func__);
+  }
+
+  // Kick the request off to the main process and translate the result to the
+  // expected type when we get a result.
+  MOZ_ASSERT(aOptions.mIdentity.WasPassed());
+  RefPtr<WindowGlobalChild> wgc = aParent->GetWindowGlobalChild();
+  MOZ_ASSERT(wgc);
+  RefPtr<IdentityCredential> credential = new IdentityCredential(aParent);
+  return wgc
+      ->SendDiscoverIdentityCredentialFromExternalSource(
+          aOptions.mIdentity.Value())
+      ->Then(
+          GetCurrentSerialEventTarget(), __func__,
+          [credential](const WindowGlobalChild::
+                           DiscoverIdentityCredentialFromExternalSourcePromise::
+                               ResolveValueType& aResult) {
+            if (aResult.isSome()) {
+              credential->CopyValuesFrom(aResult.value());
+              return IdentityCredential::GetIdentityCredentialPromise::
+                  CreateAndResolve(credential, __func__);
+            }
+            return IdentityCredential::GetIdentityCredentialPromise::
+                CreateAndReject(NS_ERROR_DOM_UNKNOWN_ERR, __func__);
+          },
+          [](const WindowGlobalChild::
+                 DiscoverIdentityCredentialFromExternalSourcePromise::
+                     RejectValueType& aResult) {
+            return IdentityCredential::GetIdentityCredentialPromise::
+                CreateAndReject(NS_ERROR_DOM_UNKNOWN_ERR, __func__);
+          });
+}
+
+// static
+RefPtr<IdentityCredential::GetIPCIdentityCredentialPromise>
+IdentityCredential::DiscoverFromExternalSourceInMainProcess(
+    nsIPrincipal* aPrincipal, CanonicalBrowsingContext* aBrowsingContext,
+    const IdentityCredentialRequestOptions& aOptions) {
+  MOZ_ASSERT(XRE_IsParentProcess());
+  MOZ_ASSERT(aPrincipal);
+  MOZ_ASSERT(aBrowsingContext);
+
+  // Make sure we have providers.
+  if (!aOptions.mProviders.WasPassed() ||
+      aOptions.mProviders.Value().Length() < 1) {
+    return IdentityCredential::GetIPCIdentityCredentialPromise::CreateAndReject(
+        NS_ERROR_DOM_NOT_ALLOWED_ERR, __func__);
+  }
+
+  RefPtr<IdentityCredential::GetIPCIdentityCredentialPromise::Private> result =
+      new IdentityCredential::GetIPCIdentityCredentialPromise::Private(
+          __func__);
+
+  nsCOMPtr<nsIPrincipal> principal(aPrincipal);
+  RefPtr<CanonicalBrowsingContext> browsingContext(aBrowsingContext);
+
+  RefPtr<nsITimer> timeout;
+  if (StaticPrefs::
+          dom_security_credentialmanagement_identity_reject_delay_enabled()) {
+    nsresult rv = NS_NewTimerWithCallback(
+        getter_AddRefs(timeout),
+        [=](auto) {
+          if (!result->IsResolved()) {
+            result->Reject(NS_ERROR_DOM_NETWORK_ERR, __func__);
+          }
+          IdentityCredential::CloseUserInterface(browsingContext);
+        },
+        StaticPrefs::
+            dom_security_credentialmanagement_identity_reject_delay_duration_ms(),
+        nsITimer::TYPE_ONE_SHOT, "IdentityCredentialTimeoutCallback");
+    if (NS_WARN_IF(NS_FAILED(rv))) {
+      result->Reject(NS_ERROR_FAILURE, __func__);
+      return result.forget();
+    }
+  }
+
+  // Construct an array of requests to fetch manifests for every provider.
+  // We need this to show their branding information
+  nsTArray<RefPtr<GetManifestPromise>> manifestPromises;
+  for (const IdentityProviderConfig& provider : aOptions.mProviders.Value()) {
+    RefPtr<GetManifestPromise> manifest =
+        IdentityCredential::CheckRootManifest(aPrincipal, provider)
+            ->Then(
+                GetCurrentSerialEventTarget(), __func__,
+                [provider, principal](bool valid) {
+                  if (valid) {
+                    return IdentityCredential::FetchInternalManifest(principal,
+                                                                     provider);
+                  }
+                  return IdentityCredential::GetManifestPromise::
+                      CreateAndReject(NS_ERROR_FAILURE, __func__);
+                },
+                [](nsresult error) {
+                  return IdentityCredential::GetManifestPromise::
+                      CreateAndReject(error, __func__);
+                });
+    manifestPromises.AppendElement(manifest);
+  }
+
+  // We use AllSettled here so that failures will be included- we use default
+  // values there.
+  GetManifestPromise::AllSettled(GetCurrentSerialEventTarget(),
+                                 manifestPromises)
+      ->Then(
+          GetCurrentSerialEventTarget(), __func__,
+          [browsingContext, aOptions](
+              const GetManifestPromise::AllSettledPromiseType::ResolveValueType&
+                  aResults) {
+            // Convert the
+            // GetManifestPromise::AllSettledPromiseType::ResolveValueType to a
+            // Sequence<MozPromise>
+            CopyableTArray<MozPromise<IdentityProviderAPIConfig, nsresult,
+                                      true>::ResolveOrRejectValue>
+                results = aResults;
+            const Sequence<MozPromise<IdentityProviderAPIConfig, nsresult,
+                                      true>::ResolveOrRejectValue>
+                resultsSequence(std::move(results));
+            // The user picks from the providers
+            return PromptUserToSelectProvider(
+                browsingContext, aOptions.mProviders.Value(), resultsSequence);
+          },
+          [](bool error) {
+            return IdentityCredential::
+                GetIdentityProviderConfigWithManifestPromise::CreateAndReject(
+                    NS_ERROR_FAILURE, __func__);
+          })
+      ->Then(
+          GetCurrentSerialEventTarget(), __func__,
+          [principal, browsingContext](
+              const IdentityProviderConfigWithManifest& providerAndManifest) {
+            IdentityProviderAPIConfig manifest;
+            IdentityProviderConfig provider;
+            std::tie(provider, manifest) = providerAndManifest;
+            return IdentityCredential::CreateCredential(
+                principal, browsingContext, provider, manifest);
+          },
+          [](nsresult error) {
+            return IdentityCredential::GetIPCIdentityCredentialPromise::
+                CreateAndReject(error, __func__);
+          })
+      ->Then(
+          GetCurrentSerialEventTarget(), __func__,
+          [result, timeout = std::move(timeout)](
+              const IdentityCredential::GetIPCIdentityCredentialPromise::
+                  ResolveOrRejectValue&& value) {
+            // Resolve the result
+            result->ResolveOrReject(value, __func__);
+
+            // Cancel the timer (if it is still pending) and
+            // release the hold on the variables leaked into the timer.
+            if (timeout &&
+                StaticPrefs::
+                    dom_security_credentialmanagement_identity_reject_delay_enabled()) {
+              timeout->Cancel();
+            }
+          });
+
+  return result;
+}
+
+// static
+RefPtr<IdentityCredential::GetIPCIdentityCredentialPromise>
+IdentityCredential::CreateCredential(
+    nsIPrincipal* aPrincipal, BrowsingContext* aBrowsingContext,
+    const IdentityProviderConfig& aProvider,
+    const IdentityProviderAPIConfig& aManifest) {
+  MOZ_ASSERT(XRE_IsParentProcess());
+  MOZ_ASSERT(aPrincipal);
+  MOZ_ASSERT(aBrowsingContext);
+
+  nsCOMPtr<nsIPrincipal> argumentPrincipal = aPrincipal;
+  RefPtr<BrowsingContext> browsingContext(aBrowsingContext);
+
+  return IdentityCredential::FetchAccountList(argumentPrincipal, aProvider,
+                                              aManifest)
+      ->Then(
+          GetCurrentSerialEventTarget(), __func__,
+          [argumentPrincipal, browsingContext, aProvider](
+              const std::tuple<IdentityProviderAPIConfig,
+                               IdentityProviderAccountList>& promiseResult) {
+            IdentityProviderAPIConfig currentManifest;
+            IdentityProviderAccountList accountList;
+            std::tie(currentManifest, accountList) = promiseResult;
+            if (!accountList.mAccounts.WasPassed() ||
+                accountList.mAccounts.Value().Length() == 0) {
+              return IdentityCredential::GetAccountPromise::CreateAndReject(
+                  NS_ERROR_FAILURE, __func__);
+            }
+            return PromptUserToSelectAccount(browsingContext, accountList,
+                                             aProvider, currentManifest);
+          },
+          [](nsresult error) {
+            return IdentityCredential::GetAccountPromise::CreateAndReject(
+                error, __func__);
+          })
+      ->Then(
+          GetCurrentSerialEventTarget(), __func__,
+          [argumentPrincipal, browsingContext, aProvider](
+              const std::tuple<IdentityProviderAPIConfig,
+                               IdentityProviderAccount>& promiseResult) {
+            IdentityProviderAPIConfig currentManifest;
+            IdentityProviderAccount account;
+            std::tie(currentManifest, account) = promiseResult;
+            return IdentityCredential::PromptUserWithPolicy(
+                browsingContext, argumentPrincipal, account, currentManifest,
+                aProvider);
+          },
+          [](nsresult error) {
+            return IdentityCredential::GetAccountPromise::CreateAndReject(
+                error, __func__);
+          })
+      ->Then(
+          GetCurrentSerialEventTarget(), __func__,
+          [argumentPrincipal, aProvider](
+              const std::tuple<IdentityProviderAPIConfig,
+                               IdentityProviderAccount>& promiseResult) {
+            IdentityProviderAPIConfig currentManifest;
+            IdentityProviderAccount account;
+            std::tie(currentManifest, account) = promiseResult;
+            return IdentityCredential::FetchToken(argumentPrincipal, aProvider,
+                                                  currentManifest, account);
+          },
+          [](nsresult error) {
+            return IdentityCredential::GetTokenPromise::CreateAndReject(
+                error, __func__);
+          })
+      ->Then(
+          GetCurrentSerialEventTarget(), __func__,
+          [aProvider](
+              const std::tuple<IdentityProviderToken, IdentityProviderAccount>&
+                  promiseResult) {
+            IdentityProviderToken token;
+            IdentityProviderAccount account;
+            std::tie(token, account) = promiseResult;
+            IPCIdentityCredential credential;
+            credential.token() = token.mToken;
+            credential.id() = account.mId;
+            credential.type() = u"identity"_ns;
+            return IdentityCredential::GetIPCIdentityCredentialPromise::
+                CreateAndResolve(credential, __func__);
+          },
+          [browsingContext](nsresult error) {
+            CloseUserInterface(browsingContext);
+            return IdentityCredential::GetIPCIdentityCredentialPromise::
+                CreateAndReject(error, __func__);
+          });
+}
+
+// static
+RefPtr<IdentityCredential::ValidationPromise>
+IdentityCredential::CheckRootManifest(nsIPrincipal* aPrincipal,
+                                      const IdentityProviderConfig& aProvider) {
+  MOZ_ASSERT(XRE_IsParentProcess());
+
+  if (StaticPrefs::
+          dom_security_credentialmanagement_identity_test_ignore_well_known()) {
+    return IdentityCredential::ValidationPromise::CreateAndResolve(true,
+                                                                   __func__);
+  }
+
+  // Build the URL
+  nsCString configLocation = aProvider.mConfigURL;
+  nsCOMPtr<nsIURI> configURI;
+  nsresult rv = NS_NewURI(getter_AddRefs(configURI), configLocation);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return IdentityCredential::ValidationPromise::CreateAndReject(rv, __func__);
+  }
+  RefPtr<nsEffectiveTLDService> etld = nsEffectiveTLDService::GetInstance();
+  if (!etld) {
+    return IdentityCredential::ValidationPromise::CreateAndReject(
+        NS_ERROR_SERVICE_NOT_AVAILABLE, __func__);
+  }
+  nsCString manifestURIString;
+  rv = etld->GetSite(configURI, manifestURIString);
+  if (NS_FAILED(rv)) {
+    return IdentityCredential::ValidationPromise::CreateAndReject(
+        NS_ERROR_INVALID_ARG, __func__);
+  }
+  manifestURIString.AppendLiteral("/.well-known/web-identity");
+
+  // Create the global
+  RefPtr<NullPrincipal> nullPrincipal =
+      NullPrincipal::CreateWithInheritedAttributes(aPrincipal);
+  nsIXPConnect* xpc = nsContentUtils::XPConnect();
+  MOZ_ASSERT(xpc, "This should never be null!");
+  nsCOMPtr<nsIGlobalObject> global;
+  AutoJSAPI jsapi;
+  jsapi.Init();
+  JSContext* cx = jsapi.cx();
+  JS::Rooted<JSObject*> sandbox(cx);
+  rv = xpc->CreateSandbox(cx, nullPrincipal, sandbox.address());
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return IdentityCredential::ValidationPromise::CreateAndReject(rv, __func__);
+  }
+  MOZ_ASSERT(JS_IsGlobalObject(sandbox));
+  global = xpc::NativeGlobal(sandbox);
+  if (NS_WARN_IF(!global)) {
+    return IdentityCredential::ValidationPromise::CreateAndReject(
+        NS_ERROR_FAILURE, __func__);
+  }
+
+  // Create a new request
+  constexpr auto fragment = ""_ns;
+  auto internalRequest =
+      MakeSafeRefPtr<InternalRequest>(manifestURIString, fragment);
+  internalRequest->SetCredentialsMode(RequestCredentials::Omit);
+  internalRequest->SetReferrerPolicy(ReferrerPolicy::No_referrer);
+  internalRequest->SetMode(RequestMode::Cors);
+  internalRequest->SetCacheMode(RequestCache::No_cache);
+  internalRequest->SetHeaders(new InternalHeaders(HeadersGuardEnum::Request));
+  internalRequest->OverrideContentPolicyType(
+      nsContentPolicyType::TYPE_WEB_IDENTITY);
+  RefPtr<Request> request =
+      new Request(global, std::move(internalRequest), nullptr);
+
+  return FetchJSONStructure<IdentityProviderWellKnown>(request)->Then(
+      GetCurrentSerialEventTarget(), __func__,
+      [aProvider](const IdentityProviderWellKnown& manifest) {
+        // Make sure there is only one provider URL
+        if (manifest.mProvider_urls.Length() != 1) {
+          return IdentityCredential::ValidationPromise::CreateAndResolve(
+              false, __func__);
+        }
+
+        // Resolve whether or not that provider URL is the one we were
+        // passed as an argument.
+        bool correctURL = manifest.mProvider_urls[0] == aProvider.mConfigURL;
+        return IdentityCredential::ValidationPromise::CreateAndResolve(
+            correctURL, __func__);
+      },
+      [](nsresult error) {
+        return IdentityCredential::ValidationPromise::CreateAndReject(error,
+                                                                      __func__);
+      });
+}
+
+// static
+RefPtr<IdentityCredential::GetManifestPromise>
+IdentityCredential::FetchInternalManifest(
+    nsIPrincipal* aPrincipal, const IdentityProviderConfig& aProvider) {
+  MOZ_ASSERT(XRE_IsParentProcess());
+  // Build the URL
+  nsCString configLocation = aProvider.mConfigURL;
+
+  // Create the global
+  RefPtr<NullPrincipal> nullPrincipal =
+      NullPrincipal::CreateWithInheritedAttributes(aPrincipal);
+  nsIXPConnect* xpc = nsContentUtils::XPConnect();
+  MOZ_ASSERT(xpc, "This should never be null!");
+  nsCOMPtr<nsIGlobalObject> global;
+  AutoJSAPI jsapi;
+  jsapi.Init();
+  JSContext* cx = jsapi.cx();
+  JS::Rooted<JSObject*> sandbox(cx);
+  nsresult rv = xpc->CreateSandbox(cx, nullPrincipal, sandbox.address());
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return IdentityCredential::GetManifestPromise::CreateAndReject(rv,
+                                                                   __func__);
+  }
+  MOZ_ASSERT(JS_IsGlobalObject(sandbox));
+  global = xpc::NativeGlobal(sandbox);
+  if (NS_WARN_IF(!global)) {
+    return IdentityCredential::GetManifestPromise::CreateAndReject(
+        NS_ERROR_FAILURE, __func__);
+  }
+
+  // Create a new request
+  constexpr auto fragment = ""_ns;
+  auto internalRequest =
+      MakeSafeRefPtr<InternalRequest>(configLocation, fragment);
+  internalRequest->SetRedirectMode(RequestRedirect::Error);
+  internalRequest->SetCredentialsMode(RequestCredentials::Omit);
+  internalRequest->SetReferrerPolicy(ReferrerPolicy::No_referrer);
+  internalRequest->SetMode(RequestMode::Cors);
+  internalRequest->SetCacheMode(RequestCache::No_cache);
+  internalRequest->SetHeaders(new InternalHeaders(HeadersGuardEnum::Request));
+  internalRequest->OverrideContentPolicyType(
+      nsContentPolicyType::TYPE_WEB_IDENTITY);
+  RefPtr<Request> request =
+      new Request(global, std::move(internalRequest), nullptr);
+  return FetchJSONStructure<IdentityProviderAPIConfig>(request);
+}
+
+// static
+RefPtr<IdentityCredential::GetAccountListPromise>
+IdentityCredential::FetchAccountList(
+    nsIPrincipal* aPrincipal, const IdentityProviderConfig& aProvider,
+    const IdentityProviderAPIConfig& aManifest) {
+  MOZ_ASSERT(XRE_IsParentProcess());
+  // Build the URL
+  nsCOMPtr<nsIURI> baseURI;
+  nsresult rv = NS_NewURI(getter_AddRefs(baseURI), aProvider.mConfigURL);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return IdentityCredential::GetAccountListPromise::CreateAndReject(rv,
+                                                                      __func__);
+  }
+  nsCOMPtr<nsIURI> idpURI;
+  rv = NS_NewURI(getter_AddRefs(idpURI), aManifest.mAccounts_endpoint, nullptr,
+                 baseURI);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return IdentityCredential::GetAccountListPromise::CreateAndReject(rv,
+                                                                      __func__);
+  }
+  nsCString configLocation;
+  rv = idpURI->GetSpec(configLocation);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return IdentityCredential::GetAccountListPromise::CreateAndReject(rv,
+                                                                      __func__);
+  }
+
+  // Build the principal to use for this connection
+  // This is an expanded principal! It has the cookies of the IDP because it
+  // subsumes the constituent principals. It also has no serializable origin,
+  // so it won't send an Origin header even though this is a CORS mode
+  // request. It accomplishes this without being a SystemPrincipal too.
+  nsCOMPtr<nsIPrincipal> idpPrincipal = BasePrincipal::CreateContentPrincipal(
+      idpURI, aPrincipal->OriginAttributesRef());
+  nsCOMPtr<nsIPrincipal> nullPrincipal =
+      NullPrincipal::CreateWithInheritedAttributes(aPrincipal);
+  AutoTArray<nsCOMPtr<nsIPrincipal>, 2> allowList = {idpPrincipal,
+                                                     nullPrincipal};
+  RefPtr<ExpandedPrincipal> expandedPrincipal =
+      ExpandedPrincipal::Create(allowList, aPrincipal->OriginAttributesRef());
+
+  // Create the global
+  nsIXPConnect* xpc = nsContentUtils::XPConnect();
+  MOZ_ASSERT(xpc, "This should never be null!");
+  nsCOMPtr<nsIGlobalObject> global;
+  AutoJSAPI jsapi;
+  jsapi.Init();
+  JSContext* cx = jsapi.cx();
+  JS::Rooted<JSObject*> sandbox(cx);
+  rv = xpc->CreateSandbox(cx, expandedPrincipal, sandbox.address());
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return IdentityCredential::GetAccountListPromise::CreateAndReject(rv,
+                                                                      __func__);
+  }
+  MOZ_ASSERT(JS_IsGlobalObject(sandbox));
+  global = xpc::NativeGlobal(sandbox);
+  if (NS_WARN_IF(!global)) {
+    return IdentityCredential::GetAccountListPromise::CreateAndReject(
+        NS_ERROR_FAILURE, __func__);
+  }
+
+  // Create a new request
+  constexpr auto fragment = ""_ns;
+  auto internalRequest =
+      MakeSafeRefPtr<InternalRequest>(configLocation, fragment);
+  internalRequest->SetRedirectMode(RequestRedirect::Error);
+  internalRequest->SetCredentialsMode(RequestCredentials::Include);
+  internalRequest->SetReferrerPolicy(ReferrerPolicy::No_referrer);
+  internalRequest->SetMode(RequestMode::Cors);
+  internalRequest->SetCacheMode(RequestCache::No_cache);
+  internalRequest->SetHeaders(new InternalHeaders(HeadersGuardEnum::Request));
+  internalRequest->OverrideContentPolicyType(
+      nsContentPolicyType::TYPE_WEB_IDENTITY);
+  RefPtr<Request> request =
+      new Request(global, std::move(internalRequest), nullptr);
+
+  return FetchJSONStructure<IdentityProviderAccountList>(request)->Then(
+      GetCurrentSerialEventTarget(), __func__,
+      [aManifest](const IdentityProviderAccountList& accountList) {
+        return IdentityCredential::GetAccountListPromise::CreateAndResolve(
+            std::make_tuple(aManifest, accountList), __func__);
+      },
+      [](nsresult error) {
+        return IdentityCredential::GetAccountListPromise::CreateAndReject(
+            error, __func__);
+      });
+}
+
+// static
+RefPtr<IdentityCredential::GetTokenPromise> IdentityCredential::FetchToken(
+    nsIPrincipal* aPrincipal, const IdentityProviderConfig& aProvider,
+    const IdentityProviderAPIConfig& aManifest,
+    const IdentityProviderAccount& aAccount) {
+  MOZ_ASSERT(XRE_IsParentProcess());
+  // Build the URL
+  nsCOMPtr<nsIURI> baseURI;
+  nsCString baseURIString = aProvider.mConfigURL;
+  nsresult rv = NS_NewURI(getter_AddRefs(baseURI), baseURIString);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return IdentityCredential::GetTokenPromise::CreateAndReject(rv, __func__);
+  }
+  nsCOMPtr<nsIURI> idpURI;
+  nsCString tokenSpec = aManifest.mId_assertion_endpoint;
+  rv = NS_NewURI(getter_AddRefs(idpURI), tokenSpec.get(), baseURI);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return IdentityCredential::GetTokenPromise::CreateAndReject(rv, __func__);
+  }
+  nsCString tokenLocation;
+  rv = idpURI->GetSpec(tokenLocation);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return IdentityCredential::GetTokenPromise::CreateAndReject(rv, __func__);
+  }
+
+  // Create the global
+  nsIXPConnect* xpc = nsContentUtils::XPConnect();
+  MOZ_ASSERT(xpc, "This should never be null!");
+  nsCOMPtr<nsIGlobalObject> global;
+  AutoJSAPI jsapi;
+  jsapi.Init();
+  JSContext* cx = jsapi.cx();
+  JS::Rooted<JSObject*> sandbox(cx);
+  rv = xpc->CreateSandbox(cx, aPrincipal, sandbox.address());
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return IdentityCredential::GetTokenPromise::CreateAndReject(rv, __func__);
+  }
+  MOZ_ASSERT(JS_IsGlobalObject(sandbox));
+  global = xpc::NativeGlobal(sandbox);
+  if (NS_WARN_IF(!global)) {
+    return IdentityCredential::GetTokenPromise::CreateAndReject(
+        NS_ERROR_FAILURE, __func__);
+  }
+
+  // Create a new request
+  constexpr auto fragment = ""_ns;
+  auto internalRequest =
+      MakeSafeRefPtr<InternalRequest>(tokenLocation, fragment);
+  internalRequest->SetMethod("POST"_ns);
+  URLParams bodyValue;
+  bodyValue.Set(u"account_id"_ns, aAccount.mId);
+  bodyValue.Set(u"client_id"_ns, aProvider.mClientId);
+  if (aProvider.mNonce.WasPassed()) {
+    bodyValue.Set(u"nonce"_ns, aProvider.mNonce.Value());
+  }
+  bodyValue.Set(u"disclosure_text_shown"_ns, u"false"_ns);
+  nsString bodyString;
+  bodyValue.Serialize(bodyString, true);
+  nsCString bodyCString = NS_ConvertUTF16toUTF8(bodyString);
+  nsCOMPtr<nsIInputStream> streamBody;
+  rv = NS_NewCStringInputStream(getter_AddRefs(streamBody), bodyCString);
+  if (NS_FAILED(rv)) {
+    return IdentityCredential::GetTokenPromise::CreateAndReject(
+        NS_ERROR_FAILURE, __func__);
+  }
+
+  IgnoredErrorResult error;
+  RefPtr<InternalHeaders> internalHeaders =
+      new InternalHeaders(HeadersGuardEnum::Request);
+  internalHeaders->Set("Content-Type"_ns,
+                       "application/x-www-form-urlencoded"_ns, error);
+  if (NS_WARN_IF(error.Failed())) {
+    return IdentityCredential::GetTokenPromise::CreateAndReject(
+        NS_ERROR_FAILURE, __func__);
+  }
+  internalRequest->SetHeaders(internalHeaders);
+  internalRequest->SetBody(streamBody, bodyCString.Length());
+  internalRequest->SetRedirectMode(RequestRedirect::Error);
+  internalRequest->SetCredentialsMode(RequestCredentials::Include);
+  internalRequest->SetReferrerPolicy(ReferrerPolicy::Strict_origin);
+  internalRequest->SetMode(RequestMode::Cors);
+  internalRequest->SetCacheMode(RequestCache::No_cache);
+  internalRequest->OverrideContentPolicyType(
+      nsContentPolicyType::TYPE_WEB_IDENTITY);
+  RefPtr<Request> request =
+      new Request(global, std::move(internalRequest), nullptr);
+  return FetchJSONStructure<IdentityProviderToken>(request)->Then(
+      GetCurrentSerialEventTarget(), __func__,
+      [aAccount](const IdentityProviderToken& token) {
+        return IdentityCredential::GetTokenPromise::CreateAndResolve(
+            std::make_tuple(token, aAccount), __func__);
+      },
+      [](nsresult error) {
+        return IdentityCredential::GetTokenPromise::CreateAndReject(error,
+                                                                    __func__);
+      });
+}
+
+// static
+RefPtr<IdentityCredential::GetMetadataPromise>
+IdentityCredential::FetchMetadata(nsIPrincipal* aPrincipal,
+                                  const IdentityProviderConfig& aProvider,
+                                  const IdentityProviderAPIConfig& aManifest) {
+  MOZ_ASSERT(XRE_IsParentProcess());
+  MOZ_ASSERT(aPrincipal);
+  // Build the URL
+  nsCOMPtr<nsIURI> baseURI;
+  nsCString baseURIString = aProvider.mConfigURL;
+  nsresult rv = NS_NewURI(getter_AddRefs(baseURI), baseURIString);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return IdentityCredential::GetMetadataPromise::CreateAndReject(rv,
+                                                                   __func__);
+  }
+  nsCOMPtr<nsIURI> idpURI;
+  nsCString metadataSpec = aManifest.mClient_metadata_endpoint;
+  rv = NS_NewURI(getter_AddRefs(idpURI), metadataSpec.get(), baseURI);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return IdentityCredential::GetMetadataPromise::CreateAndReject(rv,
+                                                                   __func__);
+  }
+  nsCString configLocation;
+  rv = idpURI->GetSpec(configLocation);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return IdentityCredential::GetMetadataPromise::CreateAndReject(rv,
+                                                                   __func__);
+  }
+
+  // Create the global
+  nsIXPConnect* xpc = nsContentUtils::XPConnect();
+  MOZ_ASSERT(xpc, "This should never be null!");
+  nsCOMPtr<nsIGlobalObject> global;
+  AutoJSAPI jsapi;
+  jsapi.Init();
+  JSContext* cx = jsapi.cx();
+  JS::Rooted<JSObject*> sandbox(cx);
+  rv = xpc->CreateSandbox(cx, aPrincipal, sandbox.address());
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return IdentityCredential::GetMetadataPromise::CreateAndReject(rv,
+                                                                   __func__);
+  }
+  MOZ_ASSERT(JS_IsGlobalObject(sandbox));
+  global = xpc::NativeGlobal(sandbox);
+  if (NS_WARN_IF(!global)) {
+    return IdentityCredential::GetMetadataPromise::CreateAndReject(
+        NS_ERROR_FAILURE, __func__);
+  }
+
+  // Create a new request
+  constexpr auto fragment = ""_ns;
+  auto internalRequest =
+      MakeSafeRefPtr<InternalRequest>(configLocation, fragment);
+  internalRequest->SetRedirectMode(RequestRedirect::Error);
+  internalRequest->SetCredentialsMode(RequestCredentials::Omit);
+  internalRequest->SetReferrerPolicy(ReferrerPolicy::No_referrer);
+  internalRequest->SetMode(RequestMode::Cors);
+  internalRequest->SetCacheMode(RequestCache::No_cache);
+  internalRequest->SetHeaders(new InternalHeaders(HeadersGuardEnum::Request));
+  internalRequest->OverrideContentPolicyType(
+      nsContentPolicyType::TYPE_WEB_IDENTITY);
+  RefPtr<Request> request =
+      new Request(global, std::move(internalRequest), nullptr);
+  return FetchJSONStructure<IdentityProviderClientMetadata>(request);
+}
+
+// static
+RefPtr<IdentityCredential::GetIdentityProviderConfigWithManifestPromise>
+IdentityCredential::PromptUserToSelectProvider(
+    BrowsingContext* aBrowsingContext,
+    const Sequence<IdentityProviderConfig>& aProviders,
+    const Sequence<GetManifestPromise::ResolveOrRejectValue>& aManifests) {
+  MOZ_ASSERT(aBrowsingContext);
+  RefPtr<
+      IdentityCredential::GetIdentityProviderConfigWithManifestPromise::Private>
+      resultPromise = new IdentityCredential::
+          GetIdentityProviderConfigWithManifestPromise::Private(__func__);
+
+  if (NS_WARN_IF(!aBrowsingContext)) {
+    resultPromise->Reject(NS_ERROR_FAILURE, __func__);
+    return resultPromise;
+  }
+
+  nsresult error;
+  nsCOMPtr<nsIIdentityCredentialPromptService> icPromptService =
+      mozilla::components::IdentityCredentialPromptService::Service(&error);
+  if (NS_WARN_IF(!icPromptService)) {
+    resultPromise->Reject(error, __func__);
+    return resultPromise;
+  }
+
+  nsCOMPtr<nsIXPConnectWrappedJS> wrapped = do_QueryInterface(icPromptService);
+  AutoJSAPI jsapi;
+  if (NS_WARN_IF(!jsapi.Init(wrapped->GetJSObjectGlobal()))) {
+    resultPromise->Reject(NS_ERROR_FAILURE, __func__);
+    return resultPromise;
+  }
+
+  JS::Rooted<JS::Value> providersJS(jsapi.cx());
+  bool success = ToJSValue(jsapi.cx(), aProviders, &providersJS);
+  if (NS_WARN_IF(!success)) {
+    resultPromise->Reject(NS_ERROR_FAILURE, __func__);
+    return resultPromise;
+  }
+
+  // Convert each settled MozPromise into a Nullable<ResolveValue>
+  Sequence<Nullable<IdentityProviderAPIConfig>> manifests;
+  for (GetManifestPromise::ResolveOrRejectValue manifest : aManifests) {
+    if (manifest.IsResolve()) {
+      if (NS_WARN_IF(
+              !manifests.AppendElement(manifest.ResolveValue(), fallible))) {
+        resultPromise->Reject(NS_ERROR_FAILURE, __func__);
+        return resultPromise;
+      }
+    } else {
+      if (NS_WARN_IF(!manifests.AppendElement(
+              Nullable<IdentityProviderAPIConfig>(), fallible))) {
+        resultPromise->Reject(NS_ERROR_FAILURE, __func__);
+        return resultPromise;
+      }
+    }
+  }
+  JS::Rooted<JS::Value> manifestsJS(jsapi.cx());
+  success = ToJSValue(jsapi.cx(), manifests, &manifestsJS);
+  if (NS_WARN_IF(!success)) {
+    resultPromise->Reject(NS_ERROR_FAILURE, __func__);
+    return resultPromise;
+  }
+
+  RefPtr<Promise> showPromptPromise;
+  icPromptService->ShowProviderPrompt(aBrowsingContext, providersJS,
+                                      manifestsJS,
+                                      getter_AddRefs(showPromptPromise));
+
+  showPromptPromise->AddCallbacksWithCycleCollectedArgs(
+      [aProviders, aManifests, resultPromise](
+          JSContext*, JS::Handle<JS::Value> aValue, ErrorResult&) {
+        int32_t result = aValue.toInt32();
+        if (result < 0 || (uint32_t)result > aProviders.Length() ||
+            (uint32_t)result > aManifests.Length()) {
+          resultPromise->Reject(NS_ERROR_FAILURE, __func__);
+          return;
+        }
+        const IdentityProviderConfig& resolvedProvider =
+            aProviders.ElementAt(result);
+        if (!aManifests.ElementAt(result).IsResolve()) {
+          resultPromise->Reject(NS_ERROR_FAILURE, __func__);
+          return;
+        }
+        const IdentityProviderAPIConfig& resolvedManifest =
+            aManifests.ElementAt(result).ResolveValue();
+        resultPromise->Resolve(
+            std::make_tuple(resolvedProvider, resolvedManifest), __func__);
+      },
+      [resultPromise](JSContext*, JS::Handle<JS::Value> aValue, ErrorResult&) {
+        resultPromise->Reject(
+            Promise::TryExtractNSResultFromRejectionValue(aValue), __func__);
+      });
+  // Working around https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85883
+  showPromptPromise->AppendNativeHandler(
+      new MozPromiseRejectOnDestruction{resultPromise, __func__});
+
+  return resultPromise;
+}
+
+// static
+RefPtr<IdentityCredential::GetAccountPromise>
+IdentityCredential::PromptUserToSelectAccount(
+    BrowsingContext* aBrowsingContext,
+    const IdentityProviderAccountList& aAccounts,
+    const IdentityProviderConfig& aProvider,
+    const IdentityProviderAPIConfig& aManifest) {
+  MOZ_ASSERT(aBrowsingContext);
+  RefPtr<IdentityCredential::GetAccountPromise::Private> resultPromise =
+      new IdentityCredential::GetAccountPromise::Private(__func__);
+
+  if (NS_WARN_IF(!aBrowsingContext)) {
+    resultPromise->Reject(NS_ERROR_FAILURE, __func__);
+    return resultPromise;
+  }
+
+  nsresult error;
+  nsCOMPtr<nsIIdentityCredentialPromptService> icPromptService =
+      mozilla::components::IdentityCredentialPromptService::Service(&error);
+  if (NS_WARN_IF(!icPromptService)) {
+    resultPromise->Reject(error, __func__);
+    return resultPromise;
+  }
+
+  nsCOMPtr<nsIXPConnectWrappedJS> wrapped = do_QueryInterface(icPromptService);
+  AutoJSAPI jsapi;
+  if (NS_WARN_IF(!jsapi.Init(wrapped->GetJSObjectGlobal()))) {
+    resultPromise->Reject(NS_ERROR_FAILURE, __func__);
+    return resultPromise;
+  }
+
+  JS::Rooted<JS::Value> accountsJS(jsapi.cx());
+  bool success = ToJSValue(jsapi.cx(), aAccounts, &accountsJS);
+  if (NS_WARN_IF(!success)) {
+    resultPromise->Reject(NS_ERROR_FAILURE, __func__);
+    return resultPromise;
+  }
+
+  JS::Rooted<JS::Value> providerJS(jsapi.cx());
+  success = ToJSValue(jsapi.cx(), aProvider, &providerJS);
+  if (NS_WARN_IF(!success)) {
+    resultPromise->Reject(NS_ERROR_FAILURE, __func__);
+    return resultPromise;
+  }
+
+  JS::Rooted<JS::Value> manifestJS(jsapi.cx());
+  success = ToJSValue(jsapi.cx(), aManifest, &manifestJS);
+  if (NS_WARN_IF(!success)) {
+    resultPromise->Reject(NS_ERROR_FAILURE, __func__);
+    return resultPromise;
+  }
+
+  RefPtr<Promise> showPromptPromise;
+  icPromptService->ShowAccountListPrompt(aBrowsingContext, accountsJS,
+                                         providerJS, manifestJS,
+                                         getter_AddRefs(showPromptPromise));
+
+  showPromptPromise->AddCallbacksWithCycleCollectedArgs(
+      [aAccounts, resultPromise, aManifest](
+          JSContext*, JS::Handle<JS::Value> aValue, ErrorResult&) {
+        int32_t result = aValue.toInt32();
+        if (!aAccounts.mAccounts.WasPassed() || result < 0 ||
+            (uint32_t)result > aAccounts.mAccounts.Value().Length()) {
+          resultPromise->Reject(NS_ERROR_FAILURE, __func__);
+          return;
+        }
+        const IdentityProviderAccount& resolved =
+            aAccounts.mAccounts.Value().ElementAt(result);
+        resultPromise->Resolve(std::make_tuple(aManifest, resolved), __func__);
+      },
+      [resultPromise](JSContext*, JS::Handle<JS::Value> aValue, ErrorResult&) {
+        resultPromise->Reject(
+            Promise::TryExtractNSResultFromRejectionValue(aValue), __func__);
+      });
+  // Working around https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85883
+  showPromptPromise->AppendNativeHandler(
+      new MozPromiseRejectOnDestruction{resultPromise, __func__});
+
+  return resultPromise;
+}
+
+// static
+RefPtr<IdentityCredential::GetAccountPromise>
+IdentityCredential::PromptUserWithPolicy(
+    BrowsingContext* aBrowsingContext, nsIPrincipal* aPrincipal,
+    const IdentityProviderAccount& aAccount,
+    const IdentityProviderAPIConfig& aManifest,
+    const IdentityProviderConfig& aProvider) {
+  MOZ_ASSERT(aBrowsingContext);
+  MOZ_ASSERT(aPrincipal);
+
+  nsresult error;
+  nsCOMPtr<nsIIdentityCredentialStorageService> icStorageService =
+      mozilla::components::IdentityCredentialStorageService::Service(&error);
+  if (NS_WARN_IF(!icStorageService)) {
+    return IdentityCredential::GetAccountPromise::CreateAndReject(error,
+                                                                  __func__);
+  }
+
+  // Check the storage bit
+  nsCString configLocation = aProvider.mConfigURL;
+  nsCOMPtr<nsIURI> idpURI;
+  error = NS_NewURI(getter_AddRefs(idpURI), configLocation);
+  if (NS_WARN_IF(NS_FAILED(error))) {
+    return IdentityCredential::GetAccountPromise::CreateAndReject(error,
+                                                                  __func__);
+  }
+  bool registered = false;
+  bool allowLogout = false;
+  nsCOMPtr<nsIPrincipal> idpPrincipal = BasePrincipal::CreateContentPrincipal(
+      idpURI, aPrincipal->OriginAttributesRef());
+  error = icStorageService->GetState(aPrincipal, idpPrincipal,
+                                     NS_ConvertUTF16toUTF8(aAccount.mId),
+                                     &registered, &allowLogout);
+  if (NS_WARN_IF(NS_FAILED(error))) {
+    return IdentityCredential::GetAccountPromise::CreateAndReject(error,
+                                                                  __func__);
+  }
+
+  // if registered, mark as logged in and return
+  if (registered) {
+    icStorageService->SetState(aPrincipal, idpPrincipal,
+                               NS_ConvertUTF16toUTF8(aAccount.mId), true, true);
+    return IdentityCredential::GetAccountPromise::CreateAndResolve(
+        std::make_tuple(aManifest, aAccount), __func__);
+  }
+
+  // otherwise, fetch ->Then display ->Then return ->Catch reject
+  RefPtr<BrowsingContext> browsingContext(aBrowsingContext);
+  nsCOMPtr<nsIPrincipal> argumentPrincipal(aPrincipal);
+  return FetchMetadata(aPrincipal, aProvider, aManifest)
+      ->Then(
+          GetCurrentSerialEventTarget(), __func__,
+          [aAccount, aManifest, aProvider, argumentPrincipal, browsingContext,
+           icStorageService,
+           idpPrincipal](const IdentityProviderClientMetadata& metadata)
+              -> RefPtr<GenericPromise> {
+            nsresult error;
+            nsCOMPtr<nsIIdentityCredentialPromptService> icPromptService =
+                mozilla::components::IdentityCredentialPromptService::Service(
+                    &error);
+            if (NS_WARN_IF(!icPromptService)) {
+              return GenericPromise::CreateAndReject(error, __func__);
+            }
+            nsCOMPtr<nsIXPConnectWrappedJS> wrapped =
+                do_QueryInterface(icPromptService);
+            AutoJSAPI jsapi;
+            if (NS_WARN_IF(!jsapi.Init(wrapped->GetJSObjectGlobal()))) {
+              return GenericPromise::CreateAndReject(NS_ERROR_FAILURE,
+                                                     __func__);
+            }
+
+            JS::Rooted<JS::Value> providerJS(jsapi.cx());
+            bool success = ToJSValue(jsapi.cx(), aProvider, &providerJS);
+            if (NS_WARN_IF(!success)) {
+              return GenericPromise::CreateAndReject(NS_ERROR_FAILURE,
+                                                     __func__);
+            }
+            JS::Rooted<JS::Value> metadataJS(jsapi.cx());
+            success = ToJSValue(jsapi.cx(), metadata, &metadataJS);
+            if (NS_WARN_IF(!success)) {
+              return GenericPromise::CreateAndReject(NS_ERROR_FAILURE,
+                                                     __func__);
+            }
+            JS::Rooted<JS::Value> manifestJS(jsapi.cx());
+            success = ToJSValue(jsapi.cx(), aManifest, &manifestJS);
+            if (NS_WARN_IF(!success)) {
+              return GenericPromise::CreateAndReject(NS_ERROR_FAILURE,
+                                                     __func__);
+            }
+
+            RefPtr<Promise> showPromptPromise;
+            icPromptService->ShowPolicyPrompt(
+                browsingContext, providerJS, manifestJS, metadataJS,
+                getter_AddRefs(showPromptPromise));
+
+            RefPtr<GenericPromise::Private> resultPromise =
+                new GenericPromise::Private(__func__);
+            showPromptPromise->AddCallbacksWithCycleCollectedArgs(
+                [aAccount, argumentPrincipal, idpPrincipal, resultPromise,
+                 icStorageService](JSContext* aCx, JS::Handle<JS::Value> aValue,
+                                   ErrorResult&) {
+                  bool isBool = aValue.isBoolean();
+                  if (!isBool) {
+                    resultPromise->Reject(NS_ERROR_FAILURE, __func__);
+                    return;
+                  }
+                  icStorageService->SetState(
+                      argumentPrincipal, idpPrincipal,
+                      NS_ConvertUTF16toUTF8(aAccount.mId), true, true);
+                  resultPromise->Resolve(aValue.toBoolean(), __func__);
+                },
+                [resultPromise](JSContext*, JS::Handle<JS::Value> aValue,
+                                ErrorResult&) {
+                  resultPromise->Reject(
+                      Promise::TryExtractNSResultFromRejectionValue(aValue),
+                      __func__);
+                });
+            // Working around https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85883
+            showPromptPromise->AppendNativeHandler(
+                new MozPromiseRejectOnDestruction{resultPromise, __func__});
+            return resultPromise;
+          },
+          [](nsresult error) {
+            return GenericPromise::CreateAndReject(error, __func__);
+          })
+      ->Then(
+          GetCurrentSerialEventTarget(), __func__,
+          [aManifest, aAccount](bool success) {
+            if (success) {
+              return IdentityCredential::GetAccountPromise::CreateAndResolve(
+                  std::make_tuple(aManifest, aAccount), __func__);
+            }
+            return IdentityCredential::GetAccountPromise::CreateAndReject(
+                NS_ERROR_FAILURE, __func__);
+          },
+          [](nsresult error) {
+            return IdentityCredential::GetAccountPromise::CreateAndReject(
+                error, __func__);
+          });
+}
+
+// static
+void IdentityCredential::CloseUserInterface(BrowsingContext* aBrowsingContext) {
+  nsresult error;
+  nsCOMPtr<nsIIdentityCredentialPromptService> icPromptService =
+      mozilla::components::IdentityCredentialPromptService::Service(&error);
+  if (NS_WARN_IF(!icPromptService)) {
+    return;
+  }
+  icPromptService->Close(aBrowsingContext);
+}
+
+// static
+already_AddRefed<Promise> IdentityCredential::LogoutRPs(
+    GlobalObject& aGlobal,
+    const Sequence<IdentityCredentialLogoutRPsRequest>& aLogoutRequests,
+    ErrorResult& aRv) {
+  nsCOMPtr<nsIGlobalObject> global = do_QueryInterface(aGlobal.GetAsSupports());
+  RefPtr<Promise> promise = Promise::CreateResolvedWithUndefined(global, aRv);
+  NS_ENSURE_FALSE(aRv.Failed(), nullptr);
+  nsresult rv;
+  nsCOMPtr<nsIIdentityCredentialStorageService> icStorageService =
+      components::IdentityCredentialStorageService::Service(&rv);
+  if (NS_WARN_IF(!icStorageService)) {
+    aRv.Throw(rv);
+    return nullptr;
+  }
+
+  RefPtr<nsIPrincipal> rpPrincipal = global->PrincipalOrNull();
+  for (const auto& request : aLogoutRequests) {
+    // Get the current state
+    nsCOMPtr<nsIURI> idpURI;
+    rv = NS_NewURI(getter_AddRefs(idpURI), request.mUrl);
+    if (NS_FAILED(rv)) {
+      aRv.ThrowTypeError<MSG_INVALID_URL>(request.mUrl);
+      return nullptr;
+    }
+    nsCOMPtr<nsIPrincipal> idpPrincipal = BasePrincipal::CreateContentPrincipal(
+        idpURI, rpPrincipal->OriginAttributesRef());
+    bool registered, allowLogout;
+    icStorageService->GetState(rpPrincipal, idpPrincipal, request.mAccountId,
+                               &registered, &allowLogout);
+
+    // Ignore this request if it isn't permitted
+    if (!(registered && allowLogout)) {
+      continue;
+    }
+
+    // Issue the logout request
+    constexpr auto fragment = ""_ns;
+    auto internalRequest =
+        MakeSafeRefPtr<InternalRequest>(request.mUrl, fragment);
+    internalRequest->SetRedirectMode(RequestRedirect::Error);
+    internalRequest->SetCredentialsMode(RequestCredentials::Include);
+    internalRequest->SetReferrerPolicy(ReferrerPolicy::Strict_origin);
+    internalRequest->SetMode(RequestMode::Cors);
+    internalRequest->SetCacheMode(RequestCache::No_cache);
+    internalRequest->OverrideContentPolicyType(
+        nsContentPolicyType::TYPE_WEB_IDENTITY);
+    RefPtr<Request> domRequest =
+        new Request(global, std::move(internalRequest), nullptr);
+    RequestOrUSVString fetchInput;
+    fetchInput.SetAsRequest() = domRequest;
+    RootedDictionary<RequestInit> requestInit(RootingCx());
+    IgnoredErrorResult error;
+    RefPtr<Promise> fetchPromise = FetchRequest(global, fetchInput, requestInit,
+                                                CallerType::System, error);
+
+    // Change state to disallow more logout requests
+    icStorageService->SetState(rpPrincipal, idpPrincipal, request.mAccountId,
+                               true, false);
+  }
+  return promise.forget();
+}
+
+}  // namespace mozilla::dom