64 lines
2.0 KiB
TypeScript
64 lines
2.0 KiB
TypeScript
/*
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* SPDX-FileCopyrightText: syuilo and misskey-project
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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import * as Misskey from 'misskey-js';
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import { query } from './url.js';
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export class MediaProxy {
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private serverMetadata: Misskey.entities.MetaDetailed;
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private url: string;
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constructor(serverMetadata: Misskey.entities.MetaDetailed, url: string) {
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this.serverMetadata = serverMetadata;
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this.url = url;
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}
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public getProxiedImageUrl(imageUrl: string, type?: 'preview' | 'emoji' | 'avatar', mustOrigin = false, noFallback = false): string {
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const localProxy = `${this.url}/proxy`;
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let _imageUrl = imageUrl;
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if (imageUrl.startsWith(this.serverMetadata.mediaProxy + '/') || imageUrl.startsWith('/proxy/') || imageUrl.startsWith(localProxy + '/')) {
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// もう既にproxyっぽそうだったらurlを取り出す
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_imageUrl = (new URL(imageUrl)).searchParams.get('url') ?? imageUrl;
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}
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return `${mustOrigin ? localProxy : this.serverMetadata.mediaProxy}/${
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type === 'preview' ? 'preview.webp'
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: 'image.webp'
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}?${query({
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url: _imageUrl,
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...(!noFallback ? { 'fallback': '1' } : {}),
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...(type ? { [type]: '1' } : {}),
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...(mustOrigin ? { origin: '1' } : {}),
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})}`;
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}
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public getProxiedImageUrlNullable(imageUrl: string | null | undefined, type?: 'preview'): string | null {
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if (imageUrl == null) return null;
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return this.getProxiedImageUrl(imageUrl, type);
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}
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public getStaticImageUrl(baseUrl: string): string {
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const u = baseUrl.startsWith('http') ? new URL(baseUrl) : new URL(baseUrl, this.url);
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if (u.href.startsWith(`${this.url}/emoji/`)) {
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// もう既にemojiっぽそうだったらsearchParams付けるだけ
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u.searchParams.set('static', '1');
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return u.href;
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}
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if (u.href.startsWith(this.serverMetadata.mediaProxy + '/')) {
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// もう既にproxyっぽそうだったらsearchParams付けるだけ
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u.searchParams.set('static', '1');
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return u.href;
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}
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return `${this.serverMetadata.mediaProxy}/static.webp?${query({
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url: u.href,
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static: '1',
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})}`;
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}
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}
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