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/*
This file is part of GNU Taler
(C) 2022 Taler Systems S.A.
GNU Taler is free software; you can redistribute it and/or modify it under the
terms of the GNU General Public License as published by the Free Software
Foundation; either version 3, or (at your option) any later version.
GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
GNU Taler; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
*/
import { HttpStatusCode } from "@gnu-taler/taler-util";
import {
ErrorType,
useTranslationContext,
} from "@gnu-taler/web-util/lib/index.browser";
import { Fragment, h, VNode } from "preact";
import { useEffect, useRef, useState } from "preact/hooks";
import { useBackendContext } from "../context/backend.js";
import { ErrorMessage } from "../context/pageState.js";
import { useCredentialsChecker } from "../hooks/backend.js";
import { bankUiSettings } from "../settings.js";
import { undefinedIfEmpty } from "../utils.js";
import { ErrorBannerFloat } from "./BankFrame.js";
import { USERNAME_REGEX } from "./RegistrationPage.js";
import { ShowInputErrorLabel } from "./ShowInputErrorLabel.js";
/**
* Collect and submit login data.
*/
export function LoginForm({ onRegister }: { onRegister?: () => void }): VNode {
const backend = useBackendContext();
const [username, setUsername] = useState<string | undefined>();
const [password, setPassword] = useState<string | undefined>();
const { i18n } = useTranslationContext();
const testLogin = useCredentialsChecker();
const [error, saveError] = useState<ErrorMessage | undefined>();
const ref = useRef<HTMLInputElement>(null);
useEffect(function focusInput() {
ref.current?.focus();
}, []);
const errors = undefinedIfEmpty({
username: !username
? i18n.str`Missing username`
: !USERNAME_REGEX.test(username)
? i18n.str`Use letters and numbers only, and start with a lowercase letter`
: undefined,
password: !password ? i18n.str`Missing password` : undefined,
});
return (
<Fragment>
<h1 class="nav">{i18n.str`Welcome to ${bankUiSettings.bankName}!`}</h1>
{error && (
<ErrorBannerFloat error={error} onClear={() => saveError(undefined)} />
)}
<div class="login-div">
<form
class="login-form"
noValidate
onSubmit={(e) => {
e.preventDefault();
}}
autoCapitalize="none"
autoCorrect="off"
>
<div class="pure-form">
<h2>{i18n.str`Please login!`}</h2>
<p class="unameFieldLabel loginFieldLabel formFieldLabel">
<label for="username">{i18n.str`Username:`}</label>
</p>
<input
ref={ref}
autoFocus
type="text"
name="username"
id="username"
value={username ?? ""}
placeholder="Username"
autocomplete="username"
required
onInput={(e): void => {
setUsername(e.currentTarget.value);
}}
/>
<ShowInputErrorLabel
message={errors?.username}
isDirty={username !== undefined}
/>
<p class="passFieldLabel loginFieldLabel formFieldLabel">
<label for="password">{i18n.str`Password:`}</label>
</p>
<input
type="password"
name="password"
id="password"
autocomplete="current-password"
value={password ?? ""}
placeholder="Password"
required
onInput={(e): void => {
setPassword(e.currentTarget.value);
}}
/>
<ShowInputErrorLabel
message={errors?.password}
isDirty={password !== undefined}
/>
<br />
<button
type="submit"
class="pure-button pure-button-primary"
disabled={!!errors}
onClick={async (e) => {
e.preventDefault();
if (!username || !password) return;
const testResult = await testLogin(username, password);
if (testResult.valid) {
backend.logIn({ username, password });
} else {
if (testResult.requestError) {
const { cause } = testResult;
switch (cause.type) {
case ErrorType.CLIENT: {
if (cause.status === HttpStatusCode.Unauthorized) {
saveError({
title: i18n.str`Wrong credentials for "${username}"`,
});
}
if (cause.status === HttpStatusCode.NotFound) {
saveError({
title: i18n.str`Account not found`,
});
} else {
saveError({
title: i18n.str`Could not load due to a client error`,
description: cause.payload.error.description,
debug: JSON.stringify(cause.payload),
});
}
break;
}
case ErrorType.SERVER: {
saveError({
title: i18n.str`Server had a problem, try again later or report.`,
description: cause.payload.error.description,
debug: JSON.stringify(cause.payload),
});
break;
}
case ErrorType.TIMEOUT: {
saveError({
title: i18n.str`Request timeout, try again later.`,
});
break;
}
case ErrorType.UNREADABLE: {
saveError({
title: i18n.str`Unexpected error.`,
description: `Response from ${cause.info?.url} is unreadable, http status: ${cause.status}`,
debug: JSON.stringify(cause),
});
break;
}
default: {
saveError({
title: i18n.str`Unexpected error, please report.`,
description: `Diagnostic from ${cause.info?.url} is "${cause.message}"`,
debug: JSON.stringify(cause),
});
break;
}
}
} else {
saveError({
title: i18n.str`Unexpected error, please report.`,
debug: JSON.stringify(testResult.error),
});
}
backend.logOut();
}
setUsername(undefined);
setPassword(undefined);
}}
>
{i18n.str`Login`}
</button>
{bankUiSettings.allowRegistrations && onRegister ? (
<button
class="pure-button pure-button-secondary btn-cancel"
onClick={(e) => {
e.preventDefault();
onRegister();
}}
>
{i18n.str`Register`}
</button>
) : (
<div />
)}
</div>
</form>
</div>
</Fragment>
);
}
|
