477 lines
19 KiB
TypeScript
477 lines
19 KiB
TypeScript
/*
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Copyright 2019, 2020 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import React from "react";
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import {
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ShowQrCodeCallbacks,
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ShowSasCallbacks,
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VerificationPhase as Phase,
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VerificationRequest,
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VerificationRequestEvent,
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VerifierEvent,
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} from "matrix-js-sdk/src/crypto-api";
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import { Device, RoomMember, User } from "matrix-js-sdk/src/matrix";
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import { logger } from "matrix-js-sdk/src/logger";
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import { VerificationMethod } from "matrix-js-sdk/src/types";
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import { MatrixClientPeg } from "../../../MatrixClientPeg";
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import VerificationQRCode from "../elements/crypto/VerificationQRCode";
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import { _t } from "../../../languageHandler";
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import SdkConfig from "../../../SdkConfig";
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import E2EIcon, { E2EState } from "../rooms/E2EIcon";
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import Spinner from "../elements/Spinner";
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import AccessibleButton from "../elements/AccessibleButton";
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import VerificationShowSas from "../verification/VerificationShowSas";
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import { getDeviceCryptoInfo } from "../../../utils/crypto/deviceInfo";
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interface IProps {
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layout: string;
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request: VerificationRequest;
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member: RoomMember | User;
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phase?: Phase;
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onClose: () => void;
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isRoomEncrypted: boolean;
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inDialog: boolean;
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}
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interface IState {
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/**
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* The data for the QR code to display.
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*
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* We attempt to calculate this once the verification request transitions into the "Ready" phase. If the other
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* side cannot scan QR codes, it will remain `undefined`.
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*/
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qrCodeBytes: Buffer | undefined;
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sasEvent: ShowSasCallbacks | null;
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emojiButtonClicked?: boolean;
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reciprocateButtonClicked?: boolean;
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reciprocateQREvent: ShowQrCodeCallbacks | null;
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/**
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* Details of the other device involved in the transaction.
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*
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* `undefined` if there is not (yet) another device in the transaction, or if we do not know about it.
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*/
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otherDeviceDetails?: Device;
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}
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export default class VerificationPanel extends React.PureComponent<IProps, IState> {
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private hasVerifier: boolean;
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/** have we yet tried to check the other device's info */
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private haveCheckedDevice = false;
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/** have we yet tried to get the QR code */
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private haveFetchedQRCode = false;
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public constructor(props: IProps) {
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super(props);
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this.state = { qrCodeBytes: undefined, sasEvent: null, reciprocateQREvent: null };
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this.hasVerifier = false;
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}
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private renderQRPhase(): JSX.Element {
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const { member, request } = this.props;
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const showSAS: boolean = request.otherPartySupportsMethod(VerificationMethod.Sas);
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const showQR: boolean = request.otherPartySupportsMethod(VerificationMethod.ScanQrCode);
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const brand = SdkConfig.get().brand;
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const noCommonMethodError: JSX.Element | null =
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!showSAS && !showQR ? <p>{_t("encryption|verification|no_support_qr_emoji", { brand })}</p> : null;
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if (this.props.layout === "dialog") {
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// HACK: This is a terrible idea.
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let qrBlockDialog: JSX.Element | undefined;
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let sasBlockDialog: JSX.Element | undefined;
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if (showQR) {
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qrBlockDialog = (
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<div className="mx_VerificationPanel_QRPhase_startOption">
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<p>{_t("encryption|verification|qr_prompt")}</p>
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<VerificationQRCode qrCodeBytes={this.state.qrCodeBytes} />
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</div>
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);
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}
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if (showSAS) {
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sasBlockDialog = (
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<div className="mx_VerificationPanel_QRPhase_startOption">
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<p>{_t("encryption|verification|sas_prompt")}</p>
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<span className="mx_VerificationPanel_QRPhase_helpText">
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{_t("encryption|verification|sas_description")}
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</span>
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<AccessibleButton
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disabled={this.state.emojiButtonClicked}
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onClick={this.startSAS}
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kind="primary"
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>
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{_t("action|start")}
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</AccessibleButton>
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</div>
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);
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}
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const or =
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qrBlockDialog && sasBlockDialog ? (
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<div className="mx_VerificationPanel_QRPhase_betweenText">
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{_t("encryption|verification|qr_or_sas", {
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emojiCompare: "",
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qrCode: "",
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})}
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</div>
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) : null;
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return (
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<div>
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{_t("encryption|verification|qr_or_sas_header")}
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<div className="mx_VerificationPanel_QRPhase_startOptions">
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{qrBlockDialog}
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{or}
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{sasBlockDialog}
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{noCommonMethodError}
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</div>
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</div>
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);
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}
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let qrBlock: JSX.Element | undefined;
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if (showQR) {
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qrBlock = (
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<div className="mx_UserInfo_container">
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<h3>{_t("encryption|verification|scan_qr")}</h3>
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<p>
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{_t("encryption|verification|scan_qr_explainer", {
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displayName: (member as User).displayName || (member as RoomMember).name || member.userId,
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})}
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</p>
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<div className="mx_VerificationPanel_qrCode">
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<VerificationQRCode qrCodeBytes={this.state.qrCodeBytes} />
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</div>
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</div>
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);
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}
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let sasBlock: JSX.Element | undefined;
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if (showSAS) {
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const disabled = this.state.emojiButtonClicked;
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const sasLabel = showQR
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? _t("encryption|verification|verify_emoji_prompt_qr")
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: _t("encryption|verification|verify_emoji_prompt");
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// Note: mx_VerificationPanel_verifyByEmojiButton is for the end-to-end tests
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sasBlock = (
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<div className="mx_UserInfo_container">
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<h3>{_t("encryption|verification|verify_emoji")}</h3>
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<p>{sasLabel}</p>
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<AccessibleButton
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disabled={disabled}
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kind="primary"
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className="mx_UserInfo_wideButton mx_VerificationPanel_verifyByEmojiButton"
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onClick={this.startSAS}
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>
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{_t("encryption|verification|verify_emoji")}
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</AccessibleButton>
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</div>
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);
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}
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const noCommonMethodBlock = noCommonMethodError ? (
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<div className="mx_UserInfo_container">{noCommonMethodError}</div>
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) : null;
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// TODO: add way to open camera to scan a QR code
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return (
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<React.Fragment>
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{qrBlock}
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{sasBlock}
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{noCommonMethodBlock}
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</React.Fragment>
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);
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}
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private onReciprocateYesClick = (): void => {
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if (!this.state.reciprocateQREvent) return;
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this.setState({ reciprocateButtonClicked: true });
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this.state.reciprocateQREvent?.confirm();
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};
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private onReciprocateNoClick = (): void => {
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if (!this.state.reciprocateQREvent) return;
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this.setState({ reciprocateButtonClicked: true });
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this.state.reciprocateQREvent?.cancel();
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};
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/**
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* Get details of the other device involved in the verification, if we haven't before, and store in the state.
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*/
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private async maybeGetOtherDevice(): Promise<void> {
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if (this.haveCheckedDevice) return;
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const client = MatrixClientPeg.safeGet();
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const deviceId = this.props.request?.otherDeviceId;
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const userId = client.getUserId();
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if (!deviceId || !userId) {
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return;
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}
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this.haveCheckedDevice = true;
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this.setState({ otherDeviceDetails: await getDeviceCryptoInfo(client, userId, deviceId) });
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}
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private renderQRReciprocatePhase(): JSX.Element {
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const { member, request } = this.props;
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const description = request.isSelfVerification
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? _t("encryption|verification|qr_reciprocate_same_shield_device")
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: _t("encryption|verification|qr_reciprocate_same_shield_user", {
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displayName: (member as User).displayName || (member as RoomMember).name || member.userId,
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});
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let body: JSX.Element;
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if (this.state.reciprocateQREvent) {
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// Element Web doesn't support scanning yet, so assume here we're the client being scanned.
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body = (
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<React.Fragment>
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<p>{description}</p>
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<E2EIcon isUser={true} status={E2EState.Verified} size={128} hideTooltip={true} />
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<div className="mx_VerificationPanel_reciprocateButtons">
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<AccessibleButton
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kind="danger"
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disabled={this.state.reciprocateButtonClicked}
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onClick={this.onReciprocateNoClick}
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>
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{_t("action|no")}
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</AccessibleButton>
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<AccessibleButton
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kind="primary"
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disabled={this.state.reciprocateButtonClicked}
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onClick={this.onReciprocateYesClick}
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>
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{_t("action|yes")}
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</AccessibleButton>
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</div>
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</React.Fragment>
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);
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} else {
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body = (
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<p>
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<Spinner />
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</p>
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);
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}
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return (
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<div className="mx_UserInfo_container mx_VerificationPanel_reciprocate_section">
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<h3>{_t("encryption|verification|scan_qr")}</h3>
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{body}
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</div>
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);
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}
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private renderVerifiedPhase(): JSX.Element {
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const { member, request } = this.props;
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let text: string | undefined;
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if (!request.isSelfVerification) {
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if (this.props.isRoomEncrypted) {
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text = _t("encryption|verification|prompt_encrypted");
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} else {
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text = _t("encryption|verification|prompt_unencrypted");
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}
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}
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let description: string;
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if (request.isSelfVerification) {
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const device = this.state.otherDeviceDetails;
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if (!device) {
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// This can happen if the device is logged out while we're still showing verification
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// UI for it.
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logger.warn("Verified device we don't know about: " + this.props.request.otherDeviceId);
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description = _t("encryption|verification|successful_own_device");
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} else {
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description = _t("encryption|verification|successful_device", {
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deviceName: device.displayName,
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deviceId: device.deviceId,
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});
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}
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} else {
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description = _t("encryption|verification|successful_user", {
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displayName: (member as User).displayName || (member as RoomMember).name || member.userId,
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});
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}
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return (
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<div className="mx_UserInfo_container mx_VerificationPanel_verified_section">
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<p>{description}</p>
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<E2EIcon isUser={true} status={E2EState.Verified} size={128} hideTooltip={true} />
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{text ? <p>{text}</p> : null}
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<AccessibleButton kind="primary" className="mx_UserInfo_wideButton" onClick={this.props.onClose}>
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{_t("action|got_it")}
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</AccessibleButton>
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</div>
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);
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}
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private renderCancelledPhase(): JSX.Element {
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const { member, request } = this.props;
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let startAgainInstruction: string;
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if (request.isSelfVerification) {
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startAgainInstruction = _t("encryption|verification|prompt_self");
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} else {
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startAgainInstruction = _t("encryption|verification|prompt_user");
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}
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let text: string;
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if (request.cancellationCode === "m.timeout") {
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text = _t("encryption|verification|timed_out") + ` ${startAgainInstruction}`;
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} else if (request.cancellingUserId === request.otherUserId) {
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if (request.isSelfVerification) {
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text = _t("encryption|verification|cancelled_self");
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} else {
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text = _t("encryption|verification|cancelled_user", {
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displayName: (member as User).displayName || (member as RoomMember).name || member.userId,
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});
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}
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text = `${text} ${startAgainInstruction}`;
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} else {
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text = _t("encryption|verification|cancelled") + ` ${startAgainInstruction}`;
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}
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return (
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<div className="mx_UserInfo_container">
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<h3>{_t("common|verification_cancelled")}</h3>
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<p>{text}</p>
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<AccessibleButton kind="primary" className="mx_UserInfo_wideButton" onClick={this.props.onClose}>
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{_t("action|got_it")}
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</AccessibleButton>
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</div>
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);
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}
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public render(): React.ReactNode {
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const { member, phase, request } = this.props;
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const displayName = (member as User).displayName || (member as RoomMember).name || member.userId;
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switch (phase) {
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case Phase.Ready:
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return this.renderQRPhase();
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case Phase.Started:
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switch (request.chosenMethod) {
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case VerificationMethod.Reciprocate:
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return this.renderQRReciprocatePhase();
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case VerificationMethod.Sas: {
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const emojis = this.state.sasEvent ? (
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<VerificationShowSas
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displayName={displayName}
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otherDeviceDetails={this.state.otherDeviceDetails}
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sas={this.state.sasEvent.sas}
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onCancel={this.onSasMismatchesClick}
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onDone={this.onSasMatchesClick}
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inDialog={this.props.inDialog}
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isSelf={request.isSelfVerification}
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/>
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) : (
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<Spinner />
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);
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return <div className="mx_UserInfo_container">{emojis}</div>;
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}
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default:
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return null;
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}
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case Phase.Done:
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return this.renderVerifiedPhase();
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case Phase.Cancelled:
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return this.renderCancelledPhase();
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}
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logger.error("VerificationPanel unhandled phase:", phase);
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return null;
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}
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private startSAS = async (): Promise<void> => {
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this.setState({ emojiButtonClicked: true });
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await this.props.request.startVerification(VerificationMethod.Sas);
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};
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private onSasMatchesClick = (): void => {
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this.state.sasEvent?.confirm();
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};
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private onSasMismatchesClick = (): void => {
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this.state.sasEvent?.mismatch();
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};
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private updateVerifierState = (): void => {
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// this method is only called once we know there is a verifier.
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const verifier = this.props.request.verifier!;
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const sasEvent = verifier.getShowSasCallbacks();
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const reciprocateQREvent = verifier.getReciprocateQrCodeCallbacks();
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verifier.off(VerifierEvent.ShowSas, this.updateVerifierState);
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verifier.off(VerifierEvent.ShowReciprocateQr, this.updateVerifierState);
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this.setState({ sasEvent, reciprocateQREvent });
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};
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private onRequestChange = async (): Promise<void> => {
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const { request } = this.props;
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// if we have a device ID and did not have one before, fetch the device's details
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this.maybeGetOtherDevice();
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// if we have had a reply from the other side (ie, the phase is "ready") and we have not
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// yet done so, fetch the QR code
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if (request.phase === Phase.Ready && !this.haveFetchedQRCode) {
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this.haveFetchedQRCode = true;
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request.generateQRCode().then(
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(buf) => {
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this.setState({ qrCodeBytes: buf });
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},
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(error) => {
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console.error("Error generating QR code:", error);
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},
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);
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}
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const hadVerifier = this.hasVerifier;
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this.hasVerifier = !!request.verifier;
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if (!hadVerifier && this.hasVerifier) {
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request.verifier?.on(VerifierEvent.ShowSas, this.updateVerifierState);
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request.verifier?.on(VerifierEvent.ShowReciprocateQr, this.updateVerifierState);
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try {
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// on the requester side, this is also awaited in startSAS,
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// but that's ok as verify should return the same promise.
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await request.verifier?.verify();
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} catch (err) {
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logger.error("error verify", err);
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}
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}
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};
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public componentDidMount(): void {
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const { request } = this.props;
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request.on(VerificationRequestEvent.Change, this.onRequestChange);
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if (request.verifier) {
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const sasEvent = request.verifier.getShowSasCallbacks();
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const reciprocateQREvent = request.verifier.getReciprocateQrCodeCallbacks();
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this.setState({ sasEvent, reciprocateQREvent });
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}
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this.onRequestChange();
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}
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public componentWillUnmount(): void {
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const { request } = this.props;
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if (request.verifier) {
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request.verifier.off(VerifierEvent.ShowSas, this.updateVerifierState);
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request.verifier.off(VerifierEvent.ShowReciprocateQr, this.updateVerifierState);
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}
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request.off(VerificationRequestEvent.Change, this.onRequestChange);
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}
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}
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