Support for login + E2EE set up with QR (#9403)

* Support for login + E2EE set up with QR

* Whitespace

* Padding

* Refactor of fetch

* Whitespace

* CSS whitespace

* Add link to MSC3906

* Handle incorrect typing in MatrixClientPeg.get()

* Use unstable class name

* fix: use unstable class name

* Use default fetch client instead

* Update to revised function name

* Refactor device manager panel and make it work with new sessions manager

* Lint fix

* Add missing interstitials and update wording

* Linting

* i18n

* Lint

* Use sensible sdk config name for fallback server

* Improve error handling for QR code generation

* Refactor feature availability logic

* Hide device manager panel if no options available

* Put sign in with QR behind lab setting

* Reduce scope of PR to just showing code on existing device

* i18n updates

* Handle null features

* Testing for LoginWithQRSection

* Refactor to handle UIA

* Imports

* Reduce diff complexity

* Remove unnecessary change

* Remove unused styles

* Support UIA

* Tidy up

* i18n

* Remove additional unused parts of flow

* Add extra instruction when showing QR code

* Add getVersions to server mocks

* Use proper colours for theme support

* Test cases

* Lint

* Remove obsolete snapshot

* Don't override error if already set

* Remove unused var

* Update src/components/views/settings/devices/LoginWithQRSection.tsx

Co-authored-by: Travis Ralston <travisr@matrix.org>

* Update src/components/views/auth/LoginWithQR.tsx

Co-authored-by: Travis Ralston <travisr@matrix.org>

* Update src/components/views/auth/LoginWithQR.tsx

Co-authored-by: Travis Ralston <travisr@matrix.org>

* Update src/components/views/auth/LoginWithQR.tsx

Co-authored-by: Travis Ralston <travisr@matrix.org>

* Update src/components/views/auth/LoginWithQR.tsx

Co-authored-by: Travis Ralston <travisr@matrix.org>

* Update src/components/views/auth/LoginWithQR.tsx

Co-authored-by: Travis Ralston <travisr@matrix.org>

* Update res/css/views/auth/_LoginWithQR.pcss

Co-authored-by: Kerry <kerrya@element.io>

* Use spacing variables

* Remove debug

* Style + docs

* preventDefault

* Names of tests

* Fixes for js-sdk refactor

* Update snapshots to match test names

* Refactor labs config to make deployment simpler

* i18n

* Unused imports

* Typo

* Stateless component

* Whitespace

* Use context not MatrixClientPeg

* Add missing context

* Type updates to match js-sdk

* Wrap click handlers in useCallback

* Update src/components/views/settings/DevicesPanel.tsx

Co-authored-by: Travis Ralston <travisr@matrix.org>

* Wait for DOM update instead of timeout

* Add missing snapshot update from last commit

* Remove void keyword in favour of then() clauses

* test main paths in LoginWithQR

Co-authored-by: Travis Ralston <travisr@matrix.org>
Co-authored-by: Kerry <kerrya@element.io>
This commit is contained in:
Hugh Nimmo-Smith 2022-10-19 13:31:20 +01:00 committed by GitHub
parent e946674df3
commit 3c3df11d32
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
23 changed files with 1638 additions and 12 deletions

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/*
Copyright 2022 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 { fireEvent, render, screen, waitFor } from '@testing-library/react';
import { mocked } from 'jest-mock';
import React from 'react';
import { MSC3886SimpleHttpRendezvousTransport } from 'matrix-js-sdk/src/rendezvous/transports';
import { MSC3906Rendezvous, RendezvousFailureReason } from 'matrix-js-sdk/src/rendezvous';
import LoginWithQR, { Mode } from '../../../../../src/components/views/auth/LoginWithQR';
import type { MatrixClient } from 'matrix-js-sdk/src/matrix';
import { flushPromisesWithFakeTimers } from '../../../../test-utils';
jest.useFakeTimers();
jest.mock('matrix-js-sdk/src/rendezvous');
jest.mock('matrix-js-sdk/src/rendezvous/transports');
jest.mock('matrix-js-sdk/src/rendezvous/channels');
function makeClient() {
return mocked({
getUser: jest.fn(),
isGuest: jest.fn().mockReturnValue(false),
isUserIgnored: jest.fn(),
isCryptoEnabled: jest.fn(),
getUserId: jest.fn(),
on: jest.fn(),
isSynapseAdministrator: jest.fn().mockResolvedValue(false),
isRoomEncrypted: jest.fn().mockReturnValue(false),
mxcUrlToHttp: jest.fn().mockReturnValue('mock-mxcUrlToHttp'),
doesServerSupportUnstableFeature: jest.fn().mockReturnValue(true),
removeListener: jest.fn(),
requestLoginToken: jest.fn(),
currentState: {
on: jest.fn(),
},
} as unknown as MatrixClient);
}
describe('<LoginWithQR />', () => {
const client = makeClient();
const defaultProps = {
mode: Mode.Show,
onFinished: jest.fn(),
};
const mockConfirmationDigits = 'mock-confirmation-digits';
const newDeviceId = 'new-device-id';
const getComponent = (props: { client: MatrixClient, onFinished?: () => void }) =>
(<LoginWithQR {...defaultProps} {...props} />);
beforeEach(() => {
jest.clearAllMocks();
jest.spyOn(MSC3906Rendezvous.prototype, 'generateCode').mockRestore();
jest.spyOn(MSC3906Rendezvous.prototype, 'cancel').mockResolvedValue();
jest.spyOn(MSC3906Rendezvous.prototype, 'declineLoginOnExistingDevice').mockResolvedValue();
jest.spyOn(MSC3906Rendezvous.prototype, 'startAfterShowingCode').mockResolvedValue(mockConfirmationDigits);
jest.spyOn(MSC3906Rendezvous.prototype, 'approveLoginOnExistingDevice').mockResolvedValue(newDeviceId);
client.requestLoginToken.mockResolvedValue({
login_token: 'token',
expires_in: 1000,
});
// @ts-ignore
client.crypto = undefined;
});
it('no content in case of no support', async () => {
// simulate no support
jest.spyOn(MSC3906Rendezvous.prototype, 'generateCode').mockRejectedValue('');
const { container } = render(getComponent({ client }));
await waitFor(() => screen.getAllByTestId('cancellation-message').length === 1);
expect(container).toMatchSnapshot();
});
it('renders spinner while generating code', async () => {
const { container } = render(getComponent({ client }));
expect(container).toMatchSnapshot();
});
it('cancels rendezvous after user goes back', async () => {
const { getByTestId } = render(getComponent({ client }));
const rendezvous = mocked(MSC3906Rendezvous).mock.instances[0];
// @ts-ignore assign to private prop
rendezvous.code = 'rendezvous-code';
// flush generate code promise
await flushPromisesWithFakeTimers();
fireEvent.click(getByTestId('back-button'));
// wait for cancel
await flushPromisesWithFakeTimers();
expect(rendezvous.cancel).toHaveBeenCalledWith(RendezvousFailureReason.UserCancelled);
});
it('displays qr code after it is created', async () => {
const { container, getByText } = render(getComponent({ client }));
const rendezvous = mocked(MSC3906Rendezvous).mock.instances[0];
// @ts-ignore assign to private prop
rendezvous.code = 'rendezvous-code';
await flushPromisesWithFakeTimers();
expect(rendezvous.generateCode).toHaveBeenCalled();
expect(getByText('Sign in with QR code')).toBeTruthy();
expect(container).toMatchSnapshot();
});
it('displays confirmation digits after connected to rendezvous', async () => {
const { container, getByText } = render(getComponent({ client }));
const rendezvous = mocked(MSC3906Rendezvous).mock.instances[0];
// @ts-ignore assign to private prop
rendezvous.code = 'rendezvous-code';
// flush generate code promise
await flushPromisesWithFakeTimers();
// flush waiting for connection promise
await flushPromisesWithFakeTimers();
expect(container).toMatchSnapshot();
expect(getByText(mockConfirmationDigits)).toBeTruthy();
});
it('displays unknown error if connection to rendezvous fails', async () => {
const { container } = render(getComponent({ client }));
expect(MSC3886SimpleHttpRendezvousTransport).toHaveBeenCalledWith({
onFailure: expect.any(Function),
client,
});
const rendezvous = mocked(MSC3906Rendezvous).mock.instances[0];
// @ts-ignore assign to private prop
rendezvous.code = 'rendezvous-code';
mocked(rendezvous).startAfterShowingCode.mockRejectedValue('oups');
// flush generate code promise
await flushPromisesWithFakeTimers();
// flush waiting for connection promise
await flushPromisesWithFakeTimers();
expect(container).toMatchSnapshot();
});
it('declines login', async () => {
const { getByTestId } = render(getComponent({ client }));
const rendezvous = mocked(MSC3906Rendezvous).mock.instances[0];
// @ts-ignore assign to private prop
rendezvous.code = 'rendezvous-code';
// flush generate code promise
await flushPromisesWithFakeTimers();
// flush waiting for connection promise
await flushPromisesWithFakeTimers();
fireEvent.click(getByTestId('decline-login-button'));
expect(rendezvous.declineLoginOnExistingDevice).toHaveBeenCalled();
});
it('displays error when approving login fails', async () => {
const { container, getByTestId } = render(getComponent({ client }));
const rendezvous = mocked(MSC3906Rendezvous).mock.instances[0];
// @ts-ignore assign to private prop
rendezvous.code = 'rendezvous-code';
client.requestLoginToken.mockRejectedValue('oups');
// flush generate code promise
await flushPromisesWithFakeTimers();
// flush waiting for connection promise
await flushPromisesWithFakeTimers();
fireEvent.click(getByTestId('approve-login-button'));
expect(client.requestLoginToken).toHaveBeenCalled();
// flush token request promise
await flushPromisesWithFakeTimers();
await flushPromisesWithFakeTimers();
expect(container).toMatchSnapshot();
});
it('approves login and waits for new device', async () => {
const { container, getByTestId, getByText } = render(getComponent({ client }));
const rendezvous = mocked(MSC3906Rendezvous).mock.instances[0];
// @ts-ignore assign to private prop
rendezvous.code = 'rendezvous-code';
// flush generate code promise
await flushPromisesWithFakeTimers();
// flush waiting for connection promise
await flushPromisesWithFakeTimers();
fireEvent.click(getByTestId('approve-login-button'));
expect(client.requestLoginToken).toHaveBeenCalled();
// flush token request promise
await flushPromisesWithFakeTimers();
await flushPromisesWithFakeTimers();
expect(getByText('Waiting for device to sign in')).toBeTruthy();
expect(container).toMatchSnapshot();
});
it('does not continue with verification when user denies login', async () => {
const onFinished = jest.fn();
const { getByTestId } = render(getComponent({ client, onFinished }));
const rendezvous = mocked(MSC3906Rendezvous).mock.instances[0];
// @ts-ignore assign to private prop
rendezvous.code = 'rendezvous-code';
// no device id returned => user denied
mocked(rendezvous).approveLoginOnExistingDevice.mockReturnValue(undefined);
// flush generate code promise
await flushPromisesWithFakeTimers();
// flush waiting for connection promise
await flushPromisesWithFakeTimers();
fireEvent.click(getByTestId('approve-login-button'));
// flush token request promise
await flushPromisesWithFakeTimers();
await flushPromisesWithFakeTimers();
expect(rendezvous.approveLoginOnExistingDevice).toHaveBeenCalled();
await flushPromisesWithFakeTimers();
expect(onFinished).not.toHaveBeenCalled();
expect(rendezvous.verifyNewDeviceOnExistingDevice).not.toHaveBeenCalled();
});
it('waits for device approval on existing device and finishes when crypto is not setup', async () => {
const { getByTestId } = render(getComponent({ client }));
const rendezvous = mocked(MSC3906Rendezvous).mock.instances[0];
// @ts-ignore assign to private prop
rendezvous.code = 'rendezvous-code';
// flush generate code promise
await flushPromisesWithFakeTimers();
// flush waiting for connection promise
await flushPromisesWithFakeTimers();
fireEvent.click(getByTestId('approve-login-button'));
// flush token request promise
await flushPromisesWithFakeTimers();
await flushPromisesWithFakeTimers();
expect(rendezvous.approveLoginOnExistingDevice).toHaveBeenCalled();
await flushPromisesWithFakeTimers();
expect(defaultProps.onFinished).toHaveBeenCalledWith(true);
// didnt attempt verification
expect(rendezvous.verifyNewDeviceOnExistingDevice).not.toHaveBeenCalled();
});
it('waits for device approval on existing device and verifies device', async () => {
const { getByTestId } = render(getComponent({ client }));
const rendezvous = mocked(MSC3906Rendezvous).mock.instances[0];
// @ts-ignore assign to private prop
rendezvous.code = 'rendezvous-code';
// we just check for presence of crypto
// pretend it is set up
// @ts-ignore
client.crypto = {};
// flush generate code promise
await flushPromisesWithFakeTimers();
// flush waiting for connection promise
await flushPromisesWithFakeTimers();
fireEvent.click(getByTestId('approve-login-button'));
// flush token request promise
await flushPromisesWithFakeTimers();
await flushPromisesWithFakeTimers();
expect(rendezvous.approveLoginOnExistingDevice).toHaveBeenCalled();
// flush login approval
await flushPromisesWithFakeTimers();
expect(rendezvous.verifyNewDeviceOnExistingDevice).toHaveBeenCalled();
// flush verification
await flushPromisesWithFakeTimers();
expect(defaultProps.onFinished).toHaveBeenCalledWith(true);
});
});

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/*
Copyright 2022 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 { render } from '@testing-library/react';
import { mocked } from 'jest-mock';
import { IServerVersions, MatrixClient } from 'matrix-js-sdk/src/matrix';
import React from 'react';
import LoginWithQRSection from '../../../../../src/components/views/settings/devices/LoginWithQRSection';
import { MatrixClientPeg } from '../../../../../src/MatrixClientPeg';
import { SettingLevel } from '../../../../../src/settings/SettingLevel';
import SettingsStore from '../../../../../src/settings/SettingsStore';
function makeClient() {
return mocked({
getUser: jest.fn(),
isGuest: jest.fn().mockReturnValue(false),
isUserIgnored: jest.fn(),
isCryptoEnabled: jest.fn(),
getUserId: jest.fn(),
on: jest.fn(),
isSynapseAdministrator: jest.fn().mockResolvedValue(false),
isRoomEncrypted: jest.fn().mockReturnValue(false),
mxcUrlToHttp: jest.fn().mockReturnValue('mock-mxcUrlToHttp'),
removeListener: jest.fn(),
currentState: {
on: jest.fn(),
},
} as unknown as MatrixClient);
}
function makeVersions(unstableFeatures: Record<string, boolean>): IServerVersions {
return {
versions: [],
unstable_features: unstableFeatures,
};
}
describe('<LoginWithQRSection />', () => {
beforeAll(() => {
jest.spyOn(MatrixClientPeg, 'get').mockReturnValue(makeClient());
});
const defaultProps = {
onShowQr: () => {},
versions: undefined,
};
const getComponent = (props = {}) =>
(<LoginWithQRSection {...defaultProps} {...props} />);
describe('should not render', () => {
it('no support at all', () => {
const { container } = render(getComponent());
expect(container).toMatchSnapshot();
});
it('feature enabled', async () => {
await SettingsStore.setValue('feature_qr_signin_reciprocate_show', null, SettingLevel.DEVICE, true);
const { container } = render(getComponent());
expect(container).toMatchSnapshot();
});
it('only feature + MSC3882 enabled', async () => {
await SettingsStore.setValue('feature_qr_signin_reciprocate_show', null, SettingLevel.DEVICE, true);
const { container } = render(getComponent({ versions: makeVersions({ 'org.matrix.msc3882': true }) }));
expect(container).toMatchSnapshot();
});
});
describe('should render panel', () => {
it('enabled by feature + MSC3882 + MSC3886', async () => {
await SettingsStore.setValue('feature_qr_signin_reciprocate_show', null, SettingLevel.DEVICE, true);
const { container } = render(getComponent({ versions: makeVersions({
'org.matrix.msc3882': true,
'org.matrix.msc3886': true,
}) }));
expect(container).toMatchSnapshot();
});
});
});

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// Jest Snapshot v1, https://goo.gl/fbAQLP
exports[`<LoginWithQR /> approves login and waits for new device 1`] = `
<div>
<div
class="mx_LoginWithQR"
>
<div
class=""
>
<div
class="mx_AccessibleButton mx_LoginWithQR_BackButton"
data-testid="back-button"
role="button"
tabindex="0"
title="Back"
>
<div />
</div>
<h1 />
</div>
<div
class="mx_LoginWithQR_main"
>
<div
class="mx_LoginWithQR_spinner"
>
<div>
<div
class="mx_Spinner"
>
<div
aria-label="Loading..."
class="mx_Spinner_icon"
role="progressbar"
style="width: 32px; height: 32px;"
/>
</div>
<p>
Waiting for device to sign in
</p>
</div>
</div>
</div>
<div
class="mx_LoginWithQR_buttons"
>
<div
class="mx_AccessibleButton mx_AccessibleButton_hasKind mx_AccessibleButton_kind_primary_outline"
role="button"
tabindex="0"
>
Cancel
</div>
</div>
</div>
</div>
`;
exports[`<LoginWithQR /> displays confirmation digits after connected to rendezvous 1`] = `
<div>
<div
class="mx_LoginWithQR"
>
<div
class=""
>
<h1>
<div
class="normal"
/>
Devices connected
</h1>
</div>
<div
class="mx_LoginWithQR_main"
>
<p>
Check that the code below matches with your other device:
</p>
<div
class="mx_LoginWithQR_confirmationDigits"
>
mock-confirmation-digits
</div>
<div
class="mx_LoginWithQR_confirmationAlert"
>
<div>
<div />
</div>
<div>
By approving access for this device, it will have full access to your account.
</div>
</div>
</div>
<div
class="mx_LoginWithQR_buttons"
>
<div
class="mx_AccessibleButton mx_AccessibleButton_hasKind mx_AccessibleButton_kind_primary_outline"
data-testid="decline-login-button"
role="button"
tabindex="0"
>
Cancel
</div>
<div
class="mx_AccessibleButton mx_AccessibleButton_hasKind mx_AccessibleButton_kind_primary"
data-testid="approve-login-button"
role="button"
tabindex="0"
>
Approve
</div>
</div>
</div>
</div>
`;
exports[`<LoginWithQR /> displays error when approving login fails 1`] = `
<div>
<div
class="mx_LoginWithQR"
>
<div
class="mx_LoginWithQR_centreTitle"
>
<h1>
<div
class="error"
/>
Connection failed
</h1>
</div>
<div
class="mx_LoginWithQR_main"
>
<p
data-testid="cancellation-message"
>
An unexpected error occurred.
</p>
</div>
<div
class="mx_LoginWithQR_buttons"
>
<div
class="mx_AccessibleButton mx_AccessibleButton_hasKind mx_AccessibleButton_kind_primary"
role="button"
tabindex="0"
>
Try again
</div>
<div
class="mx_AccessibleButton mx_AccessibleButton_hasKind mx_AccessibleButton_kind_primary_outline"
role="button"
tabindex="0"
>
Cancel
</div>
</div>
</div>
</div>
`;
exports[`<LoginWithQR /> displays qr code after it is created 1`] = `
<div>
<div
class="mx_LoginWithQR"
>
<div
class=""
>
<div
class="mx_AccessibleButton mx_LoginWithQR_BackButton"
data-testid="back-button"
role="button"
tabindex="0"
title="Back"
>
<div />
</div>
<h1>
Sign in with QR code
</h1>
</div>
<div
class="mx_LoginWithQR_main"
>
<p>
Scan the QR code below with your device that's signed out.
</p>
<ol>
<li>
Start at the sign in screen
</li>
<li>
Select 'Scan QR code'
</li>
<li>
Review and approve the sign in
</li>
</ol>
<div
class="mx_LoginWithQR_qrWrapper"
>
<div
class="mx_QRCode mx_QRCode"
>
<div
class="mx_Spinner"
>
<div
aria-label="Loading..."
class="mx_Spinner_icon"
role="progressbar"
style="width: 32px; height: 32px;"
/>
</div>
</div>
</div>
</div>
<div
class="mx_LoginWithQR_buttons"
/>
</div>
</div>
`;
exports[`<LoginWithQR /> displays unknown error if connection to rendezvous fails 1`] = `
<div>
<div
class="mx_LoginWithQR"
>
<div
class="mx_LoginWithQR_centreTitle"
>
<h1>
<div
class="error"
/>
Connection failed
</h1>
</div>
<div
class="mx_LoginWithQR_main"
>
<p
data-testid="cancellation-message"
>
An unexpected error occurred.
</p>
</div>
<div
class="mx_LoginWithQR_buttons"
>
<div
class="mx_AccessibleButton mx_AccessibleButton_hasKind mx_AccessibleButton_kind_primary"
role="button"
tabindex="0"
>
Try again
</div>
<div
class="mx_AccessibleButton mx_AccessibleButton_hasKind mx_AccessibleButton_kind_primary_outline"
role="button"
tabindex="0"
>
Cancel
</div>
</div>
</div>
</div>
`;
exports[`<LoginWithQR /> no content in case of no support 1`] = `
<div>
<div
class="mx_LoginWithQR"
>
<div
class="mx_LoginWithQR_centreTitle"
>
<h1>
<div
class="error"
/>
Connection failed
</h1>
</div>
<div
class="mx_LoginWithQR_main"
>
<p
data-testid="cancellation-message"
>
The homeserver doesn't support signing in another device.
</p>
</div>
<div
class="mx_LoginWithQR_buttons"
>
<div
class="mx_AccessibleButton mx_AccessibleButton_hasKind mx_AccessibleButton_kind_primary"
role="button"
tabindex="0"
>
Try again
</div>
<div
class="mx_AccessibleButton mx_AccessibleButton_hasKind mx_AccessibleButton_kind_primary_outline"
role="button"
tabindex="0"
>
Cancel
</div>
</div>
</div>
</div>
`;
exports[`<LoginWithQR /> renders spinner while generating code 1`] = `
<div>
<div
class="mx_LoginWithQR"
>
<div
class=""
>
<div
class="mx_AccessibleButton mx_LoginWithQR_BackButton"
data-testid="back-button"
role="button"
tabindex="0"
title="Back"
>
<div />
</div>
<h1 />
</div>
<div
class="mx_LoginWithQR_main"
>
<div
class="mx_LoginWithQR_spinner"
>
<div>
<div
class="mx_Spinner"
>
<div
aria-label="Loading..."
class="mx_Spinner_icon"
role="progressbar"
style="width: 32px; height: 32px;"
/>
</div>
</div>
</div>
</div>
<div
class="mx_LoginWithQR_buttons"
/>
</div>
</div>
`;

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// Jest Snapshot v1, https://goo.gl/fbAQLP
exports[`<LoginWithQRSection /> should not render feature enabled 1`] = `<div />`;
exports[`<LoginWithQRSection /> should not render no support at all 1`] = `<div />`;
exports[`<LoginWithQRSection /> should not render only feature + MSC3882 enabled 1`] = `<div />`;
exports[`<LoginWithQRSection /> should render panel enabled by feature + MSC3882 + MSC3886 1`] = `
<div>
<div
class="mx_SettingsSubsection"
>
<div
class="mx_SettingsSubsectionHeading"
>
<h3
class="mx_Heading_h3 mx_SettingsSubsectionHeading_heading"
>
Sign in with QR code
</h3>
</div>
<div
class="mx_SettingsSubsection_content"
>
<div
class="mx_LoginWithQRSection"
>
<p
class="mx_SettingsTab_subsectionText"
>
You can use this device to sign in a new device with a QR code. You will need to scan the QR code shown on this device with your device that's signed out.
</p>
<div
class="mx_AccessibleButton mx_AccessibleButton_hasKind mx_AccessibleButton_kind_primary"
role="button"
tabindex="0"
>
Show QR code
</div>
</div>
</div>
</div>
</div>
`;