parent
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4ecd036d0a
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@ -1,8 +1,10 @@
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import { parseFragment, DefaultTreeDocumentFragment } from 'parse5';
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import { urlRegexFull } from './prelude';
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import * as parse5 from 'parse5';
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import treeAdapter = require('parse5/lib/tree-adapters/default');
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import { URL } from 'url';
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import { urlRegex, urlRegexFull } from './prelude';
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export function fromHtml(html: string, hashtagNames?: string[]): string {
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const dom = parseFragment(html) as DefaultTreeDocumentFragment;
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const dom = parse5.parseFragment(html);
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let text = '';
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@ -12,30 +14,35 @@ export function fromHtml(html: string, hashtagNames?: string[]): string {
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return text.trim();
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function getText(node: any): string {
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if (node.nodeName === '#text') return node.value;
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function getText(node: parse5.Node): string {
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if (treeAdapter.isTextNode(node)) return node.value;
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if (!treeAdapter.isElementNode(node)) return '';
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if (node.childNodes) {
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return node.childNodes.map((n: any) => getText(n)).join('');
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return node.childNodes.map(n => getText(n)).join('');
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}
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return '';
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}
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function analyze(node: any) {
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switch (node.nodeName) {
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case '#text':
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function analyze(node: parse5.Node) {
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if (treeAdapter.isTextNode(node)) {
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text += node.value;
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break;
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return;
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}
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// Skip comment or document type node
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if (!treeAdapter.isElementNode(node)) return;
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switch (node.nodeName) {
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case 'br':
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text += '\n';
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break;
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case 'a':
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const txt = getText(node);
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const rel = node.attrs.find((x: any) => x.name === 'rel');
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const href = node.attrs.find((x: any) => x.name === 'href');
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const rel = node.attrs.find(x => x.name === 'rel');
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const href = node.attrs.find(x => x.name === 'href');
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// ハッシュタグ
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if (hashtagNames && href && hashtagNames.map(x => x.toLowerCase()).includes(txt.toLowerCase())) {
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@ -44,7 +51,7 @@ export function fromHtml(html: string, hashtagNames?: string[]): string {
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} else if (txt.startsWith('@') && !(rel && rel.value.match(/^me /))) {
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const part = txt.split('@');
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if (part.length === 2) {
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if (part.length === 2 && href) {
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//#region ホスト名部分が省略されているので復元する
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const acct = `${txt}@${(new URL(href.value)).hostname}`;
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text += acct;
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@ -54,11 +61,28 @@ export function fromHtml(html: string, hashtagNames?: string[]): string {
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}
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// その他
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} else {
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text += !href ? txt
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: txt === href.value
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? txt.match(urlRegexFull) ? txt
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: `<${txt}>`
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: `[${txt}](${href.value})`;
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const generateLink = () => {
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if (!href && !txt) {
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return '';
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}
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if (!href) {
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return txt;
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}
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if (!txt || txt === href.value) { // #6383: Missing text node
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if (href.value.match(urlRegexFull)) {
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return href.value;
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} else {
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return `<${href.value}>`;
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}
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}
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if (href.value.match(urlRegex) && !href.value.match(urlRegexFull)) {
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return `[${txt}](<${href.value}>)`; // #6846
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} else {
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return `[${txt}](${href.value})`;
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}
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};
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text += generateLink();
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}
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break;
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12
test/mfm.ts
12
test/mfm.ts
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@ -1167,6 +1167,10 @@ describe('fromHtml', () => {
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assert.deepStrictEqual(fromHtml('<p>a <a href="https://example.com/b">c</a> d</p>'), 'a [c](https://example.com/b) d');
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});
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it('link with different text, but not encoded', () => {
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assert.deepStrictEqual(fromHtml('<p>a <a href="https://example.com/ä">c</a> d</p>'), 'a [c](<https://example.com/ä>) d');
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});
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it('link with same text', () => {
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assert.deepStrictEqual(fromHtml('<p>a <a href="https://example.com/b">https://example.com/b</a> d</p>'), 'a https://example.com/b d');
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});
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@ -1183,6 +1187,14 @@ describe('fromHtml', () => {
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assert.deepStrictEqual(fromHtml('<p>a <a>c</a> d</p>'), 'a c d');
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});
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it('link without text', () => {
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assert.deepStrictEqual(fromHtml('<p>a <a href="https://example.com/b"></a> d</p>'), 'a https://example.com/b d');
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});
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it('link without both', () => {
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assert.deepStrictEqual(fromHtml('<p>a <a></a> d</p>'), 'a d');
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});
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it('mention', () => {
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assert.deepStrictEqual(fromHtml('<p>a <a href="https://example.com/@user" class="u-url mention">@user</a> d</p>'), 'a @user@example.com d');
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});
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