Files
remark42/frontend/app/components/auth/auth.tsx
T
2022-02-15 18:37:24 -06:00

379 lines
13 KiB
TypeScript

import clsx from 'clsx';
import { h, Fragment, JSX } from 'preact';
import { useState, useRef } from 'preact/hooks';
import { useIntl } from 'react-intl';
import { useDispatch } from 'react-redux';
import { BASE_URL, API_BASE } from 'common/constants.config';
import { setUser } from 'store/user/actions';
import { Input } from 'components/input';
import { CrossIcon } from 'components/icons/cross';
import { TextareaAutosize } from 'components/textarea-autosize';
import { Spinner } from 'components/spinner/spinner';
import { ArrowIcon } from 'components/icons/arrow';
import { Button } from './components/button';
import { OAuth } from './components/oauth';
import { messages } from './auth.messsages';
import { useDropdown, useErrorMessage } from './auth.hooks';
import { getProviders, getTokenInvalidReason } from './auth.utils';
import {
oauthSignin,
emailSignin,
verifyEmailSignin,
anonymousSignin,
verifyTelegramSignin,
getTelegramSigninParams,
} from './auth.api';
import styles from './auth.module.css';
export function Auth() {
const intl = useIntl();
const telegramParamsRef = useRef<null | { bot: string; token: string }>(null);
const dispatch = useDispatch();
const [oauthProviders, formProviders] = getProviders();
// UI State
const [isLoading, setLoading] = useState(false);
const [view, setView] = useState<typeof formProviders[number] | 'token' | 'telegram'>(formProviders[0]);
const [ref, isDropdownShown, toggleDropdownState] = useDropdown(view === 'token' || view === 'telegram');
// Errors
const [errorMessage, setError] = useErrorMessage();
function handleClickSingIn(evt: Event) {
evt.preventDefault();
toggleDropdownState();
}
function resetView() {
setView(formProviders[0]);
setError(null);
}
function handleDropdownClose(evt: Event) {
evt.preventDefault();
resetView();
toggleDropdownState();
}
function handleClickBack(evt: JSX.TargetedMouseEvent<HTMLButtonElement>) {
evt.preventDefault();
resetView();
}
async function handleOauthClick(evt: JSX.TargetedMouseEvent<HTMLAnchorElement>) {
evt.preventDefault();
const { href, dataset } = evt.currentTarget;
if (dataset.providerName?.toLowerCase() === 'telegram') {
try {
telegramParamsRef.current = await getTelegramSigninParams();
} catch (e) {
setError(e);
return;
}
setView('telegram');
setError(null);
return;
}
try {
const user = await oauthSignin(href);
if (user === null) {
// TODO: add error message when user is null
return;
}
dispatch(setUser(user));
} catch (e) {
setError(e);
}
}
function handleProviderChange(evt: Event) {
const { value } = evt.currentTarget as HTMLInputElement;
setView(value as typeof formProviders[number]);
setError(null);
}
async function handleSubmit(evt: Event) {
const data = new FormData(evt.target as HTMLFormElement);
evt.preventDefault();
setLoading(true);
setError(null);
try {
switch (view) {
case 'anonymous': {
const username = data.get('username') as string;
const user = await anonymousSignin(username);
dispatch(setUser(user));
break;
}
case 'email': {
const email = data.get('email') as string;
const username = data.get('username') as string;
await emailSignin(email, username);
setView('token');
break;
}
case 'token': {
const token = data.get('token') as string;
const invalidReason = getTokenInvalidReason(token);
if (invalidReason) {
setError(invalidReason);
} else {
const user = await verifyEmailSignin(token);
dispatch(setUser(user));
}
break;
}
}
} catch (e) {
setError(e);
}
setLoading(false);
}
async function handleTelegramSubmit(evt: Event) {
evt.preventDefault();
setLoading(true);
setError(null);
if (telegramParamsRef.current === null) {
try {
telegramParamsRef.current = await getTelegramSigninParams();
} catch (e) {
setError(e);
return;
}
}
try {
const user = await verifyTelegramSignin(telegramParamsRef.current.token);
dispatch(setUser(user));
} catch (e) {
setError(e);
}
setLoading(false);
}
function handleShowEmailStep(evt: Event) {
evt.preventDefault();
setView('email');
setError(null);
}
const hasOAuthProviders = oauthProviders.length > 0;
const hasFormProviders = formProviders.length > 0;
const formFooterJSX = (
<>
{errorMessage && <div className={clsx('auth-error', styles.error)}>{errorMessage}</div>}
<Button className="auth-submit" type="submit" disabled={isLoading}>
{isLoading ? <Spinner /> : intl.formatMessage(messages.submit)}
</Button>
</>
);
return (
<div className={clsx('auth', styles.root)}>
<Button className="auth-button" selected={isDropdownShown} onClick={handleClickSingIn} suffix={<ArrowIcon />}>
{intl.formatMessage(messages.signin)}
</Button>
{isDropdownShown && (
<div className={clsx('auth-dropdown', styles.dropdown)} ref={ref}>
<form className={clsx('auth-form', styles.form)} onSubmit={handleSubmit}>
{view === 'telegram' && telegramParamsRef.current !== null ? (
<>
<div className={clsx('auth-row', styles.row)}>
<div className={styles.backButton}>
<Button className="auth-back-button" size="xs" kind="transparent" onClick={handleClickBack}>
<svg
className={styles.backButtonArrow}
width="14"
height="14"
viewBox="0 0 14 14"
fill="none"
xmlns="http://www.w3.org/2000/svg"
>
<path
d="M8.75 3L5 7.25L9 11"
stroke="currentColor"
stroke-width="2"
stroke-linecap="round"
stroke-linejoin="round"
/>
</svg>
{intl.formatMessage(messages.back)}
</Button>
</div>
<button
className={clsx('auth-close-button', styles.closeButton)}
title="Close sign-in dropdown"
onClick={handleDropdownClose}
>
<CrossIcon />
</button>
</div>
<p className={clsx('telegram', styles.telegram)}>
{intl.formatMessage(messages.telegramMessage1)}{' '}
<a
target="_blank"
rel="noopener noreferrer"
href={`https://t.me/${telegramParamsRef.current.bot}/?start=${telegramParamsRef.current.token}`}
>
{intl.formatMessage(messages.telegramLink)}
</a>
{window.screen.width >= 768 && ` ${intl.formatMessage(messages.telegramOptionalQR)}`}{' '}
{intl.formatMessage(messages.telegramMessage2)}
<br />
{intl.formatMessage(messages.telegramMessage3)}
</p>
{window.screen.width >= 768 && (
<img
src={`${BASE_URL}${API_BASE}/qr/telegram?url=https://t.me/${telegramParamsRef.current.bot}/?start=${telegramParamsRef.current.token}`}
height="200"
width="200"
className={clsx('telegram-qr', styles.telegramQR)}
alt={intl.formatMessage(messages.telegramQR)}
/>
)}
{errorMessage && <div className={clsx('auth-error', styles.error)}>{errorMessage}</div>}
<Button key="submit" className="auth-submit" type="submit" onClick={handleTelegramSubmit}>
{intl.formatMessage(messages.telegramCheck)}
</Button>
</>
) : view === 'token' ? (
<>
<div className={clsx('auth-row', styles.row)}>
<div className={styles.backButton}>
<Button className="auth-back-button" size="xs" kind="transparent" onClick={handleShowEmailStep}>
<svg
className={styles.backButtonArrow}
width="14"
height="14"
viewBox="0 0 14 14"
fill="none"
xmlns="http://www.w3.org/2000/svg"
>
<path
d="M8.75 3L5 7.25L9 11"
stroke="currentColor"
stroke-width="2"
stroke-linecap="round"
stroke-linejoin="round"
/>
</svg>
{intl.formatMessage(messages.back)}
</Button>
</div>
<button
className={clsx('auth-close-button', styles.closeButton)}
title="Close sign-in dropdown"
onClick={handleDropdownClose}
>
<CrossIcon />
</button>
</div>
<div className={clsx('auth-row', styles.row)}>
<TextareaAutosize
name="token"
className={clsx('auth-token-textarea', styles.textarea)}
placeholder={intl.formatMessage(messages.token)}
disabled={isLoading}
/>
</div>
{formFooterJSX}
</>
) : (
<>
{hasOAuthProviders && (
<>
<h5 className={clsx('auth-form-title', styles.title)}>
{intl.formatMessage(messages.oauthSource)}
</h5>
<OAuth providers={oauthProviders} onOauthClick={handleOauthClick} />
</>
)}
{hasOAuthProviders && hasFormProviders && (
<div className={clsx('auth-divider', styles.divider)} title={intl.formatMessage(messages.or)} />
)}
{hasFormProviders && (
<>
{formProviders.length === 1 ? (
<h5 className={clsx('auth-form-title', styles.title)}>{formProviders[0]}</h5>
) : (
<div className={clsx('auth-tabs', styles.tabs)}>
{formProviders.map((p) => (
<Fragment key={p}>
<input
className={styles.radio}
type="radio"
id={`form-provider-${p}`}
name="form-provider"
value={p}
onChange={handleProviderChange}
checked={p === view}
/>
<label className={clsx('auth-tabs-item', styles.provider)} htmlFor={`form-provider-${p}`}>
{p.slice(0, 6)}
</label>
</Fragment>
))}
</div>
)}
<div className={clsx('auth-row', styles.row)}>
<Input
className="auth-input-username"
required
name="username"
minLength={3}
pattern="[\p{L}\d\s_]+"
title={intl.formatMessage(messages.usernameRestriction)}
placeholder={intl.formatMessage(messages.username)}
disabled={isLoading}
onBlur={(evt) => {
const element = evt.target as HTMLInputElement;
element.value = element.value.trim();
}}
/>
</div>
{view === 'email' && (
<div className={clsx('auth-row', styles.row)}>
<Input
className="auth-input-email"
required
name="email"
type="email"
placeholder={intl.formatMessage(messages.emailAddress)}
disabled={isLoading}
/>
</div>
)}
<input className={styles.honeypot} type="checkbox" tabIndex={-1} autoComplete="off" />
{formFooterJSX}
</>
)}
</>
)}
</form>
</div>
)}
</div>
);
}