misskey/packages/frontend/src/scripts/media-proxy.ts
2023-09-19 16:37:43 +09:00

54 lines
1.7 KiB
TypeScript

/*
* SPDX-FileCopyrightText: syuilo and other misskey contributors
* SPDX-License-Identifier: AGPL-3.0-only
*/
import { query } from '@/scripts/url.js';
import { url } from '@/config.js';
import { instance } from '@/instance.js';
export function getProxiedImageUrl(imageUrl: string, type?: 'preview' | 'emoji' | 'avatar', mustOrigin = false, noFallback = false): string {
const localProxy = `${url}/proxy`;
if (imageUrl.startsWith(instance.mediaProxy + '/') || imageUrl.startsWith('/proxy/') || imageUrl.startsWith(localProxy + '/')) {
// もう既にproxyっぽそうだったらurlを取り出す
imageUrl = (new URL(imageUrl)).searchParams.get('url') ?? imageUrl;
}
return `${mustOrigin ? localProxy : instance.mediaProxy}/${
type === 'preview' ? 'preview.webp'
: 'image.webp'
}?${query({
url: imageUrl,
...(!noFallback ? { 'fallback': '1' } : {}),
...(type ? { [type]: '1' } : {}),
...(mustOrigin ? { origin: '1' } : {}),
})}`;
}
export function getProxiedImageUrlNullable(imageUrl: string | null | undefined, type?: 'preview'): string | null {
if (imageUrl == null) return null;
return getProxiedImageUrl(imageUrl, type);
}
export function getStaticImageUrl(baseUrl: string): string {
const u = baseUrl.startsWith('http') ? new URL(baseUrl) : new URL(baseUrl, url);
if (u.href.startsWith(`${url}/emoji/`)) {
// もう既にemojiっぽそうだったらsearchParams付けるだけ
u.searchParams.set('static', '1');
return u.href;
}
if (u.href.startsWith(instance.mediaProxy + '/')) {
// もう既にproxyっぽそうだったらsearchParams付けるだけ
u.searchParams.set('static', '1');
return u.href;
}
return `${instance.mediaProxy}/static.webp?${query({
url: u.href,
static: '1',
})}`;
}