feat: add qrcode representation of one time link (#424) (#436)

Co-authored-by: Kyle Mendell <kmendell@ofkm.us>
Co-authored-by: Kyle Mendell <kmendell@outlook.com>
Co-authored-by: Elias Schneider <login@eliasschneider.com>

frontend/src/lib/components/one-time-link-modal.svelte

@@ -1,13 +1,16 @@
 <script lang="ts">
 	import { page } from '$app/state';
+	import CopyToClipboard from '$lib/components/copy-to-clipboard.svelte';
+	import Qrcode from '$lib/components/qrcode/qrcode.svelte';
 	import { Button } from '$lib/components/ui/button';
 	import * as Dialog from '$lib/components/ui/dialog';
-	import Input from '$lib/components/ui/input/input.svelte';
 	import Label from '$lib/components/ui/label/label.svelte';
 	import * as Select from '$lib/components/ui/select/index.js';
+	import { Separator } from '$lib/components/ui/separator';
 	import { m } from '$lib/paraglide/messages';
 	import UserService from '$lib/services/user-service';
 	import { axiosErrorToast } from '$lib/utils/error-util';
+	import { mode } from 'mode-watcher';
 
 	let {
 		userId = $bindable()
@@ -18,6 +21,7 @@
 	const userService = new UserService();
 
 	let oneTimeLink: string | null = $state(null);
+	let code: string | null = $state(null);
 	let selectedExpiration: keyof typeof availableExpirations = $state(m.one_hour());
 
 	let availableExpirations = {
@@ -31,8 +35,8 @@
 	async function createOneTimeAccessToken() {
 		try {
 			const expiration = new Date(Date.now() + availableExpirations[selectedExpiration] * 1000);
-			const token = await userService.createOneTimeAccessToken(expiration, userId!);
-			oneTimeLink = `${page.url.origin}/lc/${token}`;
+			code = await userService.createOneTimeAccessToken(expiration, userId!);
+			oneTimeLink = `${page.url.origin}/lc/${code}`;
 		} catch (e) {
 			axiosErrorToast(e);
 		}
@@ -41,6 +45,7 @@
 	function onOpenChange(open: boolean) {
 		if (!open) {
 			oneTimeLink = null;
+			code = null;
 			userId = null;
 		}
 	}
@@ -54,6 +59,7 @@
 				>{m.create_a_login_code_to_sign_in_without_a_passkey_once()}</Dialog.Description
 			>
 		</Dialog.Header>
+
 		{#if oneTimeLink === null}
 			<div>
 				<Label for="expiration">{m.expiration()}</Label>
@@ -65,7 +71,7 @@
 					onSelectedChange={(v) =>
 						(selectedExpiration = v!.value as keyof typeof availableExpirations)}
 				>
-					<Select.Trigger class="h-9 ">
+					<Select.Trigger class="h-9 w-full">
 						<Select.Value>{selectedExpiration}</Select.Value>
 					</Select.Trigger>
 					<Select.Content>
@@ -75,12 +81,36 @@
 					</Select.Content>
 				</Select.Root>
 			</div>
-			<Button onclick={() => createOneTimeAccessToken()} disabled={!selectedExpiration}>
+			<Button
+				onclick={() => createOneTimeAccessToken()}
+				disabled={!selectedExpiration}
+				class="mt-2 w-full"
+			>
 				{m.generate_code()}
 			</Button>
 		{:else}
-			<Label for="login-code" class="sr-only">{m.login_code()}</Label>
-			<Input id="login-code" value={oneTimeLink} readonly />
+			<div class="flex flex-col items-center gap-2">
+				<CopyToClipboard value={code!}>
+					<p class="text-3xl font-semibold">{code}</p>
+				</CopyToClipboard>
+
+				<div class="text-muted-foreground my-2 flex items-center justify-center gap-3">
+					<Separator />
+					<p class="text-nowrap text-xs">{m.or_visit()}</p>
+					<Separator />
+				</div>
+
+				<Qrcode
+					class="mb-2"
+					value={oneTimeLink}
+					size={180}
+					color={$mode === 'dark' ? '#FFFFFF' : '#000000'}
+					backgroundColor={$mode === 'dark' ? '#000000' : '#FFFFFF'}
+				/>
+				<CopyToClipboard value={oneTimeLink!}>
+					<p data-testId="login-code-link">{oneTimeLink!}</p>
+				</CopyToClipboard>
+			</div>
 		{/if}
 	</Dialog.Content>
 </Dialog.Root>

frontend/src/lib/components/qrcode/qrcode.svelte

@@ -0,0 +1,42 @@
+<script lang="ts">
+	import { cn } from '$lib/utils/style';
+	import QRCode from 'qrcode';
+	import { onMount } from 'svelte';
+	import type { HTMLAttributes } from 'svelte/elements';
+
+	let canvasEl: HTMLCanvasElement | null;
+	let {
+		value,
+		size = 200,
+		color = '#000000',
+		backgroundColor = '#FFFFFF',
+		...restProps
+	}: HTMLAttributes<HTMLCanvasElement> & {
+		value: string | null;
+		size?: number;
+		color?: string;
+		backgroundColor?: string;
+	} = $props();
+
+	onMount(() => {
+		if (value && canvasEl) {
+			// Convert "transparent" to a valid value for the QR code library
+			const lightColor = backgroundColor === 'transparent' ? '#00000000' : backgroundColor;
+
+			const options = {
+				width: size,
+				margin: 0,
+				color: {
+					dark: color,
+					light: lightColor
+				}
+			};
+
+			QRCode.toCanvas(canvasEl, value, options).catch((error: Error) => {
+				console.error('Error generating QR Code:', error);
+			});
+		}
+	});
+</script>
+
+<canvas {...restProps} bind:this={canvasEl} class={cn('rounded-lg', restProps.class)}></canvas>

frontend/src/routes/settings/account/login-code-modal.svelte

@@ -1,11 +1,13 @@
 <script lang="ts">
 	import { page } from '$app/state';
 	import CopyToClipboard from '$lib/components/copy-to-clipboard.svelte';
+	import Qrcode from '$lib/components/qrcode/qrcode.svelte';
 	import * as Dialog from '$lib/components/ui/dialog';
 	import { Separator } from '$lib/components/ui/separator';
 	import { m } from '$lib/paraglide/messages';
 	import UserService from '$lib/services/user-service';
 	import { axiosErrorToast } from '$lib/utils/error-util';
+	import { mode } from 'mode-watcher';
 
 	let {
 		show = $bindable()
@@ -16,13 +18,17 @@
 	const userService = new UserService();
 
 	let code: string | null = $state(null);
+	let loginCodeLink: string | null = $state(null);
 
 	$effect(() => {
 		if (show) {
 			const expiration = new Date(Date.now() + 15 * 60 * 1000);
 			userService
 				.createOneTimeAccessToken(expiration, 'me')
-				.then((c) => (code = c))
+				.then((c) => {
+					code = c;
+					loginCodeLink = page.url.origin + '/lc/' + code;
+				})
 				.catch((e) => axiosErrorToast(e));
 		}
 	});
@@ -48,16 +54,22 @@
 			<CopyToClipboard value={code!}>
 				<p class="text-3xl font-semibold">{code}</p>
 			</CopyToClipboard>
-			<div class="text-muted-foreground flex items-center justify-center gap-3">
+			<div class="text-muted-foreground my-2 flex items-center justify-center gap-3">
 				<Separator />
 				<p class="text-nowrap text-xs">{m.or_visit()}</p>
 				<Separator />
 			</div>
-			<div>
-				<CopyToClipboard value={page.url.origin + '/lc/' + code!}>
-					<p data-testId="login-code-link">{page.url.origin + '/lc/' + code!}</p>
-				</CopyToClipboard>
-			</div>
+
+			<Qrcode
+				class="mb-2"
+				value={loginCodeLink}
+				size={180}
+				color={$mode === 'dark' ? '#FFFFFF' : '#000000'}
+				backgroundColor={$mode === 'dark' ? '#000000' : '#FFFFFF'}
+			/>
+			<CopyToClipboard value={loginCodeLink!}>
+				<p data-testId="login-code-link">{loginCodeLink!}</p>
+			</CopyToClipboard>
 		</div>
 	</Dialog.Content>
 </Dialog.Root>

frontend/src/routes/settings/admin/oidc-clients/oidc-client-list.svelte

@@ -3,14 +3,13 @@
 	import { openConfirmDialog } from '$lib/components/confirm-dialog/';
 	import { Button } from '$lib/components/ui/button';
 	import * as Table from '$lib/components/ui/table';
+	import { m } from '$lib/paraglide/messages';
 	import OIDCService from '$lib/services/oidc-service';
 	import type { OidcClient } from '$lib/types/oidc.type';
 	import type { Paginated, SearchPaginationSortRequest } from '$lib/types/pagination.type';
 	import { axiosErrorToast } from '$lib/utils/error-util';
 	import { LucidePencil, LucideTrash } from 'lucide-svelte';
 	import { toast } from 'svelte-sonner';
-	import OneTimeLinkModal from './client-secret.svelte';
-	import { m } from '$lib/paraglide/messages';
 
 	let {
 		clients = $bindable(),
@@ -20,8 +19,6 @@
 		requestOptions: SearchPaginationSortRequest;
 	} = $props();
 
-	let oneTimeLink = $state<string | null>(null);
-
 	const oidcService = new OIDCService();
 
 	async function deleteClient(client: OidcClient) {
@@ -86,5 +83,3 @@
 		</Table.Cell>
 	{/snippet}
 </AdvancedTable>
-
-<OneTimeLinkModal {oneTimeLink} />