Implementation of MSC3824 to make the client OIDC-aware

src/BasePlatform.ts

@@ -22,6 +22,7 @@ import { encodeUnpaddedBase64 } from "matrix-js-sdk/src/crypto/olmlib";
 import { logger } from "matrix-js-sdk/src/logger";
 import { MatrixEvent } from "matrix-js-sdk/src/models/event";
 import { Room } from "matrix-js-sdk/src/models/room";
+import { SSOAction } from "matrix-js-sdk/src/@types/auth";
 
 import dis from "./dispatcher/dispatcher";
 import BaseEventIndexManager from "./indexing/BaseEventIndexManager";
@@ -308,9 +309,9 @@ export default abstract class BasePlatform {
         return null;
     }
 
-    protected getSSOCallbackUrl(fragmentAfterLogin: string): URL {
+    protected getSSOCallbackUrl(fragmentAfterLogin = ""): URL {
         const url = new URL(window.location.href);
-        url.hash = fragmentAfterLogin || "";
+        url.hash = fragmentAfterLogin;
         return url;
     }
 
@@ -319,13 +320,15 @@ export default abstract class BasePlatform {
      * @param {MatrixClient} mxClient the matrix client using which we should start the flow
      * @param {"sso"|"cas"} loginType the type of SSO it is, CAS/SSO.
      * @param {string} fragmentAfterLogin the hash to pass to the app during sso callback.
+     * @param {SSOAction} action the SSO flow to indicate to the IdP, optional.
      * @param {string} idpId The ID of the Identity Provider being targeted, optional.
      */
     public startSingleSignOn(
         mxClient: MatrixClient,
         loginType: "sso" | "cas",
-        fragmentAfterLogin: string,
+        fragmentAfterLogin?: string,
         idpId?: string,
+        action?: SSOAction,
     ): void {
         // persist hs url and is url for when the user is returned to the app with the login token
         localStorage.setItem(SSO_HOMESERVER_URL_KEY, mxClient.getHomeserverUrl());
@@ -336,7 +339,7 @@ export default abstract class BasePlatform {
             localStorage.setItem(SSO_IDP_ID_KEY, idpId);
         }
         const callbackUrl = this.getSSOCallbackUrl(fragmentAfterLogin);
-        window.location.href = mxClient.getSsoLoginUrl(callbackUrl.toString(), loginType, idpId); // redirect to SSO
+        window.location.href = mxClient.getSsoLoginUrl(callbackUrl.toString(), loginType, idpId, action); // redirect to SSO
     }
 
     /**

src/Lifecycle.ts

@@ -23,6 +23,7 @@ import { MatrixClient } from "matrix-js-sdk/src/client";
 import { decryptAES, encryptAES, IEncryptedPayload } from "matrix-js-sdk/src/crypto/aes";
 import { QueryDict } from "matrix-js-sdk/src/utils";
 import { logger } from "matrix-js-sdk/src/logger";
+import { SSOAction } from "matrix-js-sdk/src/@types/auth";
 
 import { IMatrixClientCreds, MatrixClientPeg } from "./MatrixClientPeg";
 import SecurityCustomisations from "./customisations/Security";
@@ -248,7 +249,7 @@ export function attemptTokenLogin(
                             idBaseUrl: identityServer,
                         });
                         const idpId = localStorage.getItem(SSO_IDP_ID_KEY) || undefined;
-                        PlatformPeg.get().startSingleSignOn(cli, "sso", fragmentAfterLogin, idpId);
+                        PlatformPeg.get().startSingleSignOn(cli, "sso", fragmentAfterLogin, idpId, SSOAction.LOGIN);
                     }
                 },
             });

src/Login.ts

@@ -19,7 +19,7 @@ limitations under the License.
 import { createClient } from "matrix-js-sdk/src/matrix";
 import { MatrixClient } from "matrix-js-sdk/src/client";
 import { logger } from "matrix-js-sdk/src/logger";
-import { ILoginParams, LoginFlow } from "matrix-js-sdk/src/@types/auth";
+import { DELEGATED_OIDC_COMPATIBILITY, ILoginParams, LoginFlow } from "matrix-js-sdk/src/@types/auth";
 
 import { IMatrixClientCreds } from "./MatrixClientPeg";
 import SecurityCustomisations from "./customisations/Security";
@@ -32,7 +32,6 @@ export default class Login {
     private hsUrl: string;
     private isUrl: string;
     private fallbackHsUrl: string;
-    // TODO: Flows need a type in JS SDK
     private flows: Array<LoginFlow>;
     private defaultDeviceDisplayName: string;
     private tempClient: MatrixClient;
@@ -81,8 +80,13 @@ export default class Login {
 
     public async getFlows(): Promise<Array<LoginFlow>> {
         const client = this.createTemporaryClient();
-        const { flows } = await client.loginFlows();
-        this.flows = flows;
+        const { flows }: { flows: LoginFlow[] } = await client.loginFlows();
+        // If an m.login.sso flow is present which is also flagged as being for MSC3824 OIDC compatibility then we only
+        // return that flow as (per MSC3824) it is the only one that the user should be offered to give the best experience
+        const oidcCompatibilityFlow = flows.find(
+            (f) => f.type === "m.login.sso" && DELEGATED_OIDC_COMPATIBILITY.findIn(f),
+        );
+        this.flows = oidcCompatibilityFlow ? [oidcCompatibilityFlow] : flows;
         return this.flows;
     }
 

src/components/structures/auth/Login.tsx

@@ -18,7 +18,7 @@ import React, { ReactNode } from "react";
 import { ConnectionError, MatrixError } from "matrix-js-sdk/src/http-api";
 import classNames from "classnames";
 import { logger } from "matrix-js-sdk/src/logger";
-import { ISSOFlow, LoginFlow } from "matrix-js-sdk/src/@types/auth";
+import { ISSOFlow, LoginFlow, SSOAction } from "matrix-js-sdk/src/@types/auth";
 
 import { _t, _td } from "../../../languageHandler";
 import Login from "../../../Login";
@@ -345,6 +345,7 @@ export default class LoginComponent extends React.PureComponent<IProps, IState>
                 this.loginLogic.createTemporaryClient(),
                 ssoKind,
                 this.props.fragmentAfterLogin,
+                SSOAction.REGISTER,
             );
         } else {
             // Don't intercept - just go through to the register page
@@ -549,6 +550,7 @@ export default class LoginComponent extends React.PureComponent<IProps, IState>
                 loginType={loginType}
                 fragmentAfterLogin={this.props.fragmentAfterLogin}
                 primary={!this.state.flows.find((flow) => flow.type === "m.login.password")}
+                action={SSOAction.LOGIN}
             />
         );
     };

src/components/structures/auth/Registration.tsx

@@ -19,7 +19,7 @@ import React, { Fragment, ReactNode } from "react";
 import { MatrixClient } from "matrix-js-sdk/src/client";
 import classNames from "classnames";
 import { logger } from "matrix-js-sdk/src/logger";
-import { ISSOFlow } from "matrix-js-sdk/src/@types/auth";
+import { ISSOFlow, SSOAction } from "matrix-js-sdk/src/@types/auth";
 
 import { _t, _td } from "../../../languageHandler";
 import { messageForResourceLimitError } from "../../../utils/ErrorUtils";
@@ -534,6 +534,7 @@ export default class Registration extends React.Component<IProps, IState> {
                             flow={this.state.ssoFlow}
                             loginType={this.state.ssoFlow.type === "m.login.sso" ? "sso" : "cas"}
                             fragmentAfterLogin={this.props.fragmentAfterLogin}
+                            action={SSOAction.REGISTER}
                         />
                         <h2 className="mx_AuthBody_centered">
                             {_t("%(ssoButtons)s Or %(usernamePassword)s", {

src/components/structures/auth/SoftLogout.tsx

@@ -17,7 +17,7 @@ limitations under the License.
 import React from "react";
 import { logger } from "matrix-js-sdk/src/logger";
 import { Optional } from "matrix-events-sdk";
-import { ISSOFlow, LoginFlow } from "matrix-js-sdk/src/@types/auth";
+import { ISSOFlow, LoginFlow, SSOAction } from "matrix-js-sdk/src/@types/auth";
 
 import { _t } from "../../../languageHandler";
 import dis from "../../../dispatcher/dispatcher";
@@ -256,6 +256,7 @@ export default class SoftLogout extends React.Component<IProps, IState> {
                     loginType={loginType}
                     fragmentAfterLogin={this.props.fragmentAfterLogin}
                     primary={!this.state.flows.find((flow) => flow.type === "m.login.password")}
+                    action={SSOAction.LOGIN}
                 />
             </div>
         );

src/components/views/elements/SSOButtons.tsx

@@ -19,7 +19,13 @@ import { chunk } from "lodash";
 import classNames from "classnames";
 import { MatrixClient } from "matrix-js-sdk/src/client";
 import { Signup } from "@matrix-org/analytics-events/types/typescript/Signup";
-import { IdentityProviderBrand, IIdentityProvider, ISSOFlow } from "matrix-js-sdk/src/@types/auth";
+import {
+    IdentityProviderBrand,
+    IIdentityProvider,
+    ISSOFlow,
+    DELEGATED_OIDC_COMPATIBILITY,
+    SSOAction,
+} from "matrix-js-sdk/src/@types/auth";
 
 import PlatformPeg from "../../../PlatformPeg";
 import AccessibleButton from "./AccessibleButton";
@@ -28,9 +34,10 @@ import AccessibleTooltipButton from "./AccessibleTooltipButton";
 import { mediaFromMxc } from "../../../customisations/Media";
 import { PosthogAnalytics } from "../../../PosthogAnalytics";
 
-interface ISSOButtonProps extends Omit<IProps, "flow"> {
+interface ISSOButtonProps extends IProps {
     idp?: IIdentityProvider;
     mini?: boolean;
+    action?: SSOAction;
 }
 
 const getIcon = (brand: IdentityProviderBrand | string) => {
@@ -79,20 +86,29 @@ const SSOButton: React.FC<ISSOButtonProps> = ({
     idp,
     primary,
     mini,
+    action,
+    flow,
     ...props
 }) => {
-    const label = idp ? _t("Continue with %(provider)s", { provider: idp.name }) : _t("Sign in with single sign-on");
+    let label: string;
+    if (idp) {
+        label = _t("Continue with %(provider)s", { provider: idp.name });
+    } else if (DELEGATED_OIDC_COMPATIBILITY.findIn<boolean>(flow)) {
+        label = _t("Continue");
+    } else {
+        label = _t("Sign in with single sign-on");
+    }
 
     const onClick = () => {
         const authenticationType = getAuthenticationType(idp?.brand ?? "");
         PosthogAnalytics.instance.setAuthenticationType(authenticationType);
-        PlatformPeg.get().startSingleSignOn(matrixClient, loginType, fragmentAfterLogin, idp?.id);
+        PlatformPeg.get().startSingleSignOn(matrixClient, loginType, fragmentAfterLogin, idp?.id, action);
     };
 
-    let icon;
-    let brandClass;
-    const brandIcon = idp ? getIcon(idp.brand) : null;
-    if (brandIcon) {
+    let icon: JSX.Element | undefined;
+    let brandClass: string | undefined;
+    const brandIcon = idp?.brand ? getIcon(idp.brand) : null;
+    if (idp?.brand && brandIcon) {
         const brandName = idp.brand.split(".").pop();
         brandClass = `mx_SSOButton_brand_${brandName}`;
         icon = <img src={brandIcon} height="24" width="24" alt={brandName} />;
@@ -101,12 +117,16 @@ const SSOButton: React.FC<ISSOButtonProps> = ({
         icon = <img src={src} height="24" width="24" alt={idp.name} />;
     }
 
-    const classes = classNames("mx_SSOButton", {
-        [brandClass]: brandClass,
-        mx_SSOButton_mini: mini,
-        mx_SSOButton_default: !idp,
-        mx_SSOButton_primary: primary,
-    });
+    const brandPart = brandClass ? { [brandClass]: brandClass } : undefined;
+    const classes = classNames(
+        "mx_SSOButton",
+        {
+            mx_SSOButton_mini: mini,
+            mx_SSOButton_default: !idp,
+            mx_SSOButton_primary: primary,
+        },
+        brandPart,
+    );
 
     if (mini) {
         // TODO fallback icon
@@ -128,14 +148,15 @@ const SSOButton: React.FC<ISSOButtonProps> = ({
 interface IProps {
     matrixClient: MatrixClient;
     flow: ISSOFlow;
-    loginType?: "sso" | "cas";
+    loginType: "sso" | "cas";
     fragmentAfterLogin?: string;
     primary?: boolean;
+    action?: SSOAction;
 }
 
 const MAX_PER_ROW = 6;
 
-const SSOButtons: React.FC<IProps> = ({ matrixClient, flow, loginType, fragmentAfterLogin, primary }) => {
+const SSOButtons: React.FC<IProps> = ({ matrixClient, flow, loginType, fragmentAfterLogin, primary, action }) => {
     const providers = flow.identity_providers || [];
     if (providers.length < 2) {
         return (
@@ -146,6 +167,8 @@ const SSOButtons: React.FC<IProps> = ({ matrixClient, flow, loginType, fragmentA
                     fragmentAfterLogin={fragmentAfterLogin}
                     idp={providers[0]}
                     primary={primary}
+                    action={action}
+                    flow={flow}
                 />
             </div>
         );
@@ -167,6 +190,8 @@ const SSOButtons: React.FC<IProps> = ({ matrixClient, flow, loginType, fragmentA
                             idp={idp}
                             mini={true}
                             primary={primary}
+                            action={action}
+                            flow={flow}
                         />
                     ))}
                 </div>

src/components/views/settings/tabs/user/GeneralUserSettingsTab.tsx

@@ -20,6 +20,7 @@ import React from "react";
 import { SERVICE_TYPES } from "matrix-js-sdk/src/service-types";
 import { IThreepid } from "matrix-js-sdk/src/@types/threepids";
 import { logger } from "matrix-js-sdk/src/logger";
+import { IDelegatedAuthConfig, M_AUTHENTICATION } from "matrix-js-sdk/src/matrix";
 
 import { _t } from "../../../../../languageHandler";
 import ProfileSettings from "../../ProfileSettings";
@@ -79,6 +80,7 @@ interface IState {
     loading3pids: boolean; // whether or not the emails and msisdns have been loaded
     canChangePassword: boolean;
     idServerName: string;
+    externalAccountManagementUrl?: string;
 }
 
 export default class GeneralUserSettingsTab extends React.Component<IProps, IState> {
@@ -106,6 +108,7 @@ export default class GeneralUserSettingsTab extends React.Component<IProps, ISta
             loading3pids: true, // whether or not the emails and msisdns have been loaded
             canChangePassword: false,
             idServerName: null,
+            externalAccountManagementUrl: undefined,
         };
 
         this.dispatcherRef = dis.register(this.onAction);
@@ -161,7 +164,10 @@ export default class GeneralUserSettingsTab extends React.Component<IProps, ISta
         // the enabled flag value.
         const canChangePassword = !changePasswordCap || changePasswordCap["enabled"] !== false;
 
-        this.setState({ serverSupportsSeparateAddAndBind, canChangePassword });
+        const delegatedAuthConfig = M_AUTHENTICATION.findIn<IDelegatedAuthConfig | undefined>(cli.getClientWellKnown());
+        const externalAccountManagementUrl = delegatedAuthConfig?.account;
+
+        this.setState({ serverSupportsSeparateAddAndBind, canChangePassword, externalAccountManagementUrl });
     }
 
     private async getThreepidState(): Promise<void> {
@@ -348,9 +354,35 @@ export default class GeneralUserSettingsTab extends React.Component<IProps, ISta
             passwordChangeForm = null;
         }
 
+        let externalAccountManagement: JSX.Element | undefined;
+        if (this.state.externalAccountManagementUrl) {
+            const { hostname } = new URL(this.state.externalAccountManagementUrl);
+
+            externalAccountManagement = (
+                <p className="mx_SettingsTab_subsectionText" data-testid="external-account-management-outer">
+                    {_t(
+                        "Manage your account at <a>%(hostname)s</a>.",
+                        { hostname },
+                        {
+                            a: (hostname) => (
+                                <a
+                                    href={this.state.externalAccountManagementUrl}
+                                    rel="noreferrer noopener"
+                                    target="_blank"
+                                    data-testid="external-account-management-link"
+                                >
+                                    {hostname}
+                                </a>
+                            ),
+                        },
+                    )}
+                </p>
+            );
+        }
         return (
             <div className="mx_SettingsTab_section mx_GeneralUserSettingsTab_accountSection">
                 <span className="mx_SettingsTab_subheading">{_t("Account")}</span>
+                {externalAccountManagement}
                 <p className="mx_SettingsTab_subsectionText">{passwordChangeText}</p>
                 {passwordChangeForm}
                 {threepidSection}

src/i18n/strings/en_EN.json

@@ -1528,6 +1528,7 @@
     "Email addresses": "Email addresses",
     "Phone numbers": "Phone numbers",
     "Set a new account password...": "Set a new account password...",
+    "Manage your account at <a>%(hostname)s</a>.": "Manage your account at <a>%(hostname)s</a>.",
     "Account": "Account",
     "Language and region": "Language and region",
     "Spell check": "Spell check",