element-web/src/verification.js

/*
Copyright 2019, 2020 The Matrix.org Foundation C.I.C.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

import {MatrixClientPeg} from './MatrixClientPeg';
import dis from "./dispatcher";
import Modal from './Modal';
import * as sdk from './index';
import { _t } from './languageHandler';
import {RIGHT_PANEL_PHASES} from "./stores/RightPanelStorePhases";
import {findDMForUser} from './createRoom';
import {accessSecretStorage} from './CrossSigningManager';
import SettingsStore from './settings/SettingsStore';
import {verificationMethods} from 'matrix-js-sdk/src/crypto';

async function enable4SIfNeeded() {
    const cli = MatrixClientPeg.get();
    if (!cli.isCryptoEnabled() || !SettingsStore.isFeatureEnabled("feature_cross_signing")) {
        return false;
    }
    const usk = cli.getCrossSigningId("user_signing");
    if (!usk) {
        await accessSecretStorage();
        return false;
    }

    return true;
}

function UntrustedDeviceDialog(props) {
    const {device, user, onFinished} = props;
    const BaseDialog = sdk.getComponent("dialogs.BaseDialog");
    const AccessibleButton = sdk.getComponent("elements.AccessibleButton");
    return <BaseDialog
        onFinished={onFinished}
        headerImage={require("../res/img/e2e/warning.svg")}
        title={_t("Not Trusted")}>
        <div className="mx_Dialog_content" id='mx_Dialog_content'>
            <p>{_t("%(name)s (%(userId)s) signed in to a new session without verifying it:", {name: user.displayName, userId: user.userId})}</p>
            <p>{device.getDisplayName()} ({device.deviceId})</p>
            <p>{_t("Ask this user to verify their session, or manually verify it below.")}</p>
        </div>
        <div className='mx_Dialog_buttons'>
            <AccessibleButton element="button" kind="secondary" onClick={() => onFinished("legacy")}>{_t("Legacy Verify Device")}</AccessibleButton>
            <AccessibleButton element="button" kind="secondary" onClick={() => onFinished("sas")}>{_t("Verify Device by Emoji")}</AccessibleButton>
            <AccessibleButton kind="primary" onClick={() => onFinished()}>{_t("Done")}</AccessibleButton>
        </div>
    </BaseDialog>;
}

export async function verifyDevice(user, device) {
    if (!await enable4SIfNeeded()) {
        return;
    }
    Modal.createTrackedDialog("Verification warning", "unverified session", UntrustedDeviceDialog, {
        user,
        device,
        onFinished: async (action) => {
            if (action === "sas") {
                const cli = MatrixClientPeg.get();
                const verificationRequestPromise = cli.legacyDeviceVerification(
                    user.userId,
                    device.deviceId,
                    verificationMethods.SAS,
                );
                dis.dispatch({
                    action: "set_right_panel_phase",
                    phase: RIGHT_PANEL_PHASES.EncryptionPanel,
                    refireParams: {member: user, verificationRequestPromise},
                });
            } else if (action === "legacy") {
                const ManualDeviceKeyVerificationDialog = sdk.getComponent("dialogs.ManualDeviceKeyVerificationDialog");
                Modal.createTrackedDialog("Legacy verify session", "legacy verify session", ManualDeviceKeyVerificationDialog, {
                    userId: user.userId,
                    device,
                });
            }
        },
    });
}

export async function legacyVerifyUser(user) {
    if (!await enable4SIfNeeded()) {
        return;
    }
    const cli = MatrixClientPeg.get();
    const verificationRequestPromise = cli.beginKeyVerification(user.userId);
    dis.dispatch({
        action: "set_right_panel_phase",
        phase: RIGHT_PANEL_PHASES.EncryptionPanel,
        refireParams: {member: user, verificationRequestPromise},
    });
}

export async function verifyUser(user) {
    if (!await enable4SIfNeeded()) {
        return;
    }
    const cli = MatrixClientPeg.get();
    const dmRoom = findDMForUser(cli, user.userId);
    let existingRequest;
    if (dmRoom) {
        existingRequest = cli.findVerificationRequestDMInProgress(dmRoom.roomId);
    }
    dis.dispatch({
        action: "set_right_panel_phase",
        phase: RIGHT_PANEL_PHASES.EncryptionPanel,
        refireParams: {
            member: user,
            verificationRequest: existingRequest,
        },
    });
}