element-web/src/components/views/messages/EncryptionEvent.js

/*
Copyright 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 React from 'react';
import PropTypes from 'prop-types';
import { _t } from '../../../languageHandler';
import { MatrixClientPeg } from '../../../MatrixClientPeg';

export default class EncryptionEvent extends React.Component {
    render() {
        const {mxEvent} = this.props;

        let body;
        let classes = "mx_EventTile_bubble mx_cryptoEvent mx_cryptoEvent_icon";
        if (
            mxEvent.getContent().algorithm === 'm.megolm.v1.aes-sha2' &&
            MatrixClientPeg.get().isRoomEncrypted(mxEvent.getRoomId())
        ) {
            body = <div>
                <div className="mx_cryptoEvent_title">{_t("Encryption enabled")}</div>
                <div className="mx_cryptoEvent_subtitle">
                    {_t(
                        "Messages in this room are end-to-end encrypted. " +
                        "Learn more & verify this user in their user profile.",
                    )}
                </div>
            </div>;
        } else {
            body = <div>
                <div className="mx_cryptoEvent_title">{_t("Encryption not enabled")}</div>
                <div className="mx_cryptoEvent_subtitle">{_t("The encryption used by this room isn't supported.")}</div>
            </div>;
            classes += " mx_cryptoEvent_icon_warning";
        }

        return (<div className={classes}>
            {body}
        </div>);
    }
}

EncryptionEvent.propTypes = {
    /* the MatrixEvent to show */
    mxEvent: PropTypes.object.isRequired,
};