enhance: 非ログイン時には別サーバーに遷移できるように (#13089)

* enhance: 非ログイン時にはMisskey Hub経由で別サーバーに遷移できるように

* fix

* サーバーサイド照会を削除

* クライアント側の照会動作

* hubを経由せずにリモートで続行できるように

* fix と pleaseLogin誘導箇所の追加

* fix

* fix

* Update CHANGELOG.md

---------

Co-authored-by: syuilo <4439005+syuilo@users.noreply.github.com>

1 files changed, 114 insertions, 19 deletions

diff --git a/packages/frontend/src/components/MkSignin.vue b/packages/frontend/src/components/MkSignin.vue
index db32cdd6a1..746ddd7154 100644
--- a/packages/frontend/src/components/MkSignin.vue
+++ b/packages/frontend/src/components/MkSignin.vue
@@ -6,10 +6,23 @@ SPDX-License-Identifier: AGPL-3.0-only
 <template>
 <form :class="{ signing, totpLogin }" @submit.prevent="onSubmit">
 	<div class="_gaps_m">
-		<div v-show="withAvatar" :class="$style.avatar" :style="{ backgroundImage: user ? `url('${ user.avatarUrl }')` : undefined, marginBottom: message ? '1.5em' : undefined }"></div>
+		<div v-show="withAvatar" :class="$style.avatar" :style="{ backgroundImage: user ? `url('${user.avatarUrl}')` : undefined, marginBottom: message ? '1.5em' : undefined }"></div>
 		<MkInfo v-if="message">
 			{{ message }}
 		</MkInfo>
+		<div v-if="openOnRemote" class="_gaps_m">
+			<div class="_gaps_s">
+				<MkButton type="button" rounded primary style="margin: 0 auto;" @click="openRemote(openOnRemote)">
+					{{ i18n.ts.continueOnRemote }} <i class="ti ti-external-link"></i>
+				</MkButton>
+				<button type="button" class="_button" :class="$style.instanceManualSelectButton" @click="specifyHostAndOpenRemote(openOnRemote)">
+					{{ i18n.ts.specifyServerHost }}
+				</button>
+			</div>
+			<div :class="$style.orHr">
+				<p :class="$style.orMsg">{{ i18n.ts.or }}</p>
+			</div>
+		</div>
 		<div v-if="!totpLogin" class="normal-signin _gaps_m">
 			<MkInput v-model="username" :placeholder="i18n.ts.username" type="text" pattern="^[a-zA-Z0-9_]+$" :spellcheck="false" autocomplete="username webauthn" autofocus required data-cy-signin-username @update:modelValue="onUsernameChange">
 				<template #prefix>@</template>
@@ -28,8 +41,8 @@ SPDX-License-Identifier: AGPL-3.0-only
 					{{ i18n.ts.retry }}
 				</MkButton>
 			</div>
-			<div v-if="user && user.securityKeys" class="or-hr">
-				<p class="or-msg">{{ i18n.ts.or }}</p>
+			<div v-if="user && user.securityKeys" :class="$style.orHr">
+				<p :class="$style.orMsg">{{ i18n.ts.or }}</p>
 			</div>
 			<div class="twofa-group totp-group _gaps">
 				<MkInput v-if="user && user.usePasswordLessLogin" v-model="password" type="password" autocomplete="current-password" :withPasswordToggle="true" required>
@@ -53,6 +66,7 @@ import { defineAsyncComponent, ref } from 'vue';
 import { toUnicode } from 'punycode/';
 import * as Misskey from 'misskey-js';
 import { supported as webAuthnSupported, get as webAuthnRequest, parseRequestOptionsFromJSON } from '@github/webauthn-json/browser-ponyfill';
+import type { OpenOnRemoteOptions } from '@/scripts/please-login.js';
 import { showSuspendedDialog } from '@/scripts/show-suspended-dialog.js';
 import MkButton from '@/components/MkButton.vue';
 import MkInput from '@/components/MkInput.vue';
@@ -60,6 +74,7 @@ import MkInfo from '@/components/MkInfo.vue';
 import { host as configHost } from '@/config.js';
 import * as os from '@/os.js';
 import { misskeyApi } from '@/scripts/misskey-api.js';
+import { query, extractDomain } from '@/scripts/url.js';
 import { login } from '@/account.js';
 import { i18n } from '@/i18n.js';
 
@@ -78,22 +93,16 @@ const emit = defineEmits<{
 	(ev: 'login', v: any): void;
 }>();
 
-const props = defineProps({
-	withAvatar: {
-		type: Boolean,
-		required: false,
-		default: true,
-	},
-	autoSet: {
-		type: Boolean,
-		required: false,
-		default: false,
-	},
-	message: {
-		type: String,
-		required: false,
-		default: '',
-	},
+const props = withDefaults(defineProps<{
+	withAvatar?: boolean;
+	autoSet?: boolean;
+	message?: string,
+	openOnRemote?: OpenOnRemoteOptions,
+}>(), {
+	withAvatar: true,
+	autoSet: false,
+	message: '',
+	openOnRemote: undefined,
 });
 
 function onUsernameChange(): void {
@@ -222,6 +231,60 @@ function resetPassword(): void {
 		closed: () => dispose(),
 	});
 }
+
+function openRemote(options: OpenOnRemoteOptions, targetHost?: string): void {
+	switch (options.type) {
+		case 'web':
+		case 'lookup': {
+			let _path = options.path;
+
+			if (options.type === 'lookup') {
+				// TODO: v2024.2.0以降が浸透してきたら正式なURLに変更する▼
+				// _path = `/lookup?uri=${encodeURIComponent(_path)}`;
+				_path = `/authorize-follow?acct=${encodeURIComponent(_path)}`;
+			}
+
+			if (targetHost) {
+				window.open(`https://${targetHost}${_path}`, '_blank', 'noopener');
+			} else {
+				window.open(`https://misskey-hub.net/mi-web/?path=${encodeURIComponent(_path)}`, '_blank', 'noopener');
+			}
+			break;
+		}
+		case 'share': {
+			const params = query(options.params);			
+			if (targetHost) {
+				window.open(`https://${targetHost}/share?${params}`, '_blank', 'noopener');
+			} else {
+				window.open(`https://misskey-hub.net/share/?${params}`, '_blank', 'noopener');
+			}
+			break;
+		}
+	}
+}
+
+async function specifyHostAndOpenRemote(options: OpenOnRemoteOptions): Promise<void> {
+	const { canceled, result: hostTemp } = await os.inputText({
+		title: i18n.ts.inputHostName,
+		placeholder: 'misskey.example.com',
+	});
+
+	if (canceled) return;
+
+	let targetHost: string | null = hostTemp;
+
+	// ドメイン部分だけを取り出す
+	targetHost = extractDomain(targetHost);
+	if (targetHost == null) {
+		os.alert({
+			type: 'error',
+			title: i18n.ts.invalidValue,
+			text: i18n.ts.tryAgain,
+		});
+		return;
+	}
+	openRemote(options, targetHost);
+}
 </script>
 
 <style lang="scss" module>
@@ -234,4 +297,36 @@ function resetPassword(): void {
 	background-size: cover;
 	border-radius: 100%;
 }
+
+.instanceManualSelectButton {
+	display: block;
+	text-align: center;
+	opacity: .7;
+	font-size: .8em;
+
+	&:hover {
+		text-decoration: underline;
+	}
+}
+
+.orHr {
+	position: relative;
+	margin: .4em auto;
+	width: 100%;
+	height: 1px;
+	background: var(--divider);
+}
+
+.orMsg {
+	position: absolute;
+	top: -.6em;
+	display: inline-block;
+	padding: 0 1em;
+	background: var(--panel);
+	font-size: 0.8em;
+	color: var(--fgOnPanel);
+	margin: 0;
+	left: 50%;
+	transform: translateX(-50%);
+}
 </style>