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c2370a1be6
* chore: Add the SPDX information to each file Add copyright and licensing information as defined in version 3.0 of the REUSE Specification. * tweak format --------- Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>
25 lines
866 B
TypeScript
25 lines
866 B
TypeScript
/*
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* SPDX-FileCopyrightText: syuilo and other misskey contributors
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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import * as mfm from 'mfm-js';
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import { unique } from '@/scripts/array';
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// unique without hash
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// [ http://a/#1, http://a/#2, http://b/#3 ] => [ http://a/#1, http://b/#3 ]
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const removeHash = (x: string) => x.replace(/#[^#]*$/, '');
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export function extractUrlFromMfm(nodes: mfm.MfmNode[], respectSilentFlag = true): string[] {
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const urlNodes = mfm.extract(nodes, (node) => {
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return (node.type === 'url') || (node.type === 'link' && (!respectSilentFlag || !node.props.silent));
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});
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const urls: string[] = unique(urlNodes.map(x => x.props.url));
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return urls.reduce((array, url) => {
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const urlWithoutHash = removeHash(url);
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if (!array.map(x => removeHash(x)).includes(urlWithoutHash)) array.push(url);
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return array;
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}, [] as string[]);
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}
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