mirror of
https://github.com/MisskeyIO/misskey
synced 2024-12-22 02:28:20 +09:00
385 lines
8.8 KiB
TypeScript
385 lines
8.8 KiB
TypeScript
import { URL } from 'node:url';
|
|
import { Inject, Injectable } from '@nestjs/common';
|
|
import * as parse5 from 'parse5';
|
|
import { JSDOM } from 'jsdom';
|
|
import { DI } from '@/di-symbols.js';
|
|
import type { UsersRepository } from '@/models/index.js';
|
|
import type { Config } from '@/config.js';
|
|
import { intersperse } from '@/misc/prelude/array.js';
|
|
import type { IMentionedRemoteUsers } from '@/models/entities/Note.js';
|
|
import * as TreeAdapter from '../../node_modules/parse5/dist/tree-adapters/default.js';
|
|
import type * as mfm from 'mfm-js';
|
|
|
|
const treeAdapter = TreeAdapter.defaultTreeAdapter;
|
|
|
|
const urlRegex = /^https?:\/\/[\w\/:%#@$&?!()\[\]~.,=+\-]+/;
|
|
const urlRegexFull = /^https?:\/\/[\w\/:%#@$&?!()\[\]~.,=+\-]+$/;
|
|
|
|
@Injectable()
|
|
export class MfmService {
|
|
constructor(
|
|
@Inject(DI.config)
|
|
private config: Config,
|
|
) {
|
|
}
|
|
|
|
public fromHtml(html: string, hashtagNames?: string[]): string {
|
|
// some AP servers like Pixelfed use br tags as well as newlines
|
|
html = html.replace(/<br\s?\/?>\r?\n/gi, '\n');
|
|
|
|
const dom = parse5.parseFragment(html);
|
|
|
|
let text = '';
|
|
|
|
for (const n of dom.childNodes) {
|
|
analyze(n);
|
|
}
|
|
|
|
return text.trim();
|
|
|
|
function getText(node: TreeAdapter.Node): string {
|
|
if (treeAdapter.isTextNode(node)) return node.value;
|
|
if (!treeAdapter.isElementNode(node)) return '';
|
|
if (node.nodeName === 'br') return '\n';
|
|
|
|
if (node.childNodes) {
|
|
return node.childNodes.map(n => getText(n)).join('');
|
|
}
|
|
|
|
return '';
|
|
}
|
|
|
|
function appendChildren(childNodes: TreeAdapter.ChildNode[]): void {
|
|
if (childNodes) {
|
|
for (const n of childNodes) {
|
|
analyze(n);
|
|
}
|
|
}
|
|
}
|
|
|
|
function analyze(node: TreeAdapter.Node) {
|
|
if (treeAdapter.isTextNode(node)) {
|
|
text += node.value;
|
|
return;
|
|
}
|
|
|
|
// Skip comment or document type node
|
|
if (!treeAdapter.isElementNode(node)) return;
|
|
|
|
switch (node.nodeName) {
|
|
case 'br': {
|
|
text += '\n';
|
|
break;
|
|
}
|
|
|
|
case 'a':
|
|
{
|
|
const txt = getText(node);
|
|
const rel = node.attrs.find(x => x.name === 'rel');
|
|
const href = node.attrs.find(x => x.name === 'href');
|
|
|
|
// ハッシュタグ
|
|
if (hashtagNames && href && hashtagNames.map(x => x.toLowerCase()).includes(txt.toLowerCase())) {
|
|
text += txt;
|
|
// メンション
|
|
} else if (txt.startsWith('@') && !(rel && rel.value.match(/^me /))) {
|
|
const part = txt.split('@');
|
|
|
|
if (part.length === 2 && href) {
|
|
//#region ホスト名部分が省略されているので復元する
|
|
const acct = `${txt}@${(new URL(href.value)).hostname}`;
|
|
text += acct;
|
|
//#endregion
|
|
} else if (part.length === 3) {
|
|
text += txt;
|
|
}
|
|
// その他
|
|
} else {
|
|
const generateLink = () => {
|
|
if (!href && !txt) {
|
|
return '';
|
|
}
|
|
if (!href) {
|
|
return txt;
|
|
}
|
|
if (!txt || txt === href.value) { // #6383: Missing text node
|
|
if (href.value.match(urlRegexFull)) {
|
|
return href.value;
|
|
} else {
|
|
return `<${href.value}>`;
|
|
}
|
|
}
|
|
if (href.value.match(urlRegex) && !href.value.match(urlRegexFull)) {
|
|
return `[${txt}](<${href.value}>)`; // #6846
|
|
} else {
|
|
return `[${txt}](${href.value})`;
|
|
}
|
|
};
|
|
|
|
text += generateLink();
|
|
}
|
|
break;
|
|
}
|
|
|
|
case 'h1':
|
|
{
|
|
text += '【';
|
|
appendChildren(node.childNodes);
|
|
text += '】\n';
|
|
break;
|
|
}
|
|
|
|
case 'b':
|
|
case 'strong':
|
|
{
|
|
text += '**';
|
|
appendChildren(node.childNodes);
|
|
text += '**';
|
|
break;
|
|
}
|
|
|
|
case 'small':
|
|
{
|
|
text += '<small>';
|
|
appendChildren(node.childNodes);
|
|
text += '</small>';
|
|
break;
|
|
}
|
|
|
|
case 's':
|
|
case 'del':
|
|
{
|
|
text += '~~';
|
|
appendChildren(node.childNodes);
|
|
text += '~~';
|
|
break;
|
|
}
|
|
|
|
case 'i':
|
|
case 'em':
|
|
{
|
|
text += '<i>';
|
|
appendChildren(node.childNodes);
|
|
text += '</i>';
|
|
break;
|
|
}
|
|
|
|
// block code (<pre><code>)
|
|
case 'pre': {
|
|
if (node.childNodes.length === 1 && node.childNodes[0].nodeName === 'code') {
|
|
text += '\n```\n';
|
|
text += getText(node.childNodes[0]);
|
|
text += '\n```\n';
|
|
} else {
|
|
appendChildren(node.childNodes);
|
|
}
|
|
break;
|
|
}
|
|
|
|
// inline code (<code>)
|
|
case 'code': {
|
|
text += '`';
|
|
appendChildren(node.childNodes);
|
|
text += '`';
|
|
break;
|
|
}
|
|
|
|
case 'blockquote': {
|
|
const t = getText(node);
|
|
if (t) {
|
|
text += '\n> ';
|
|
text += t.split('\n').join('\n> ');
|
|
}
|
|
break;
|
|
}
|
|
|
|
case 'p':
|
|
case 'h2':
|
|
case 'h3':
|
|
case 'h4':
|
|
case 'h5':
|
|
case 'h6':
|
|
{
|
|
text += '\n\n';
|
|
appendChildren(node.childNodes);
|
|
break;
|
|
}
|
|
|
|
// other block elements
|
|
case 'div':
|
|
case 'header':
|
|
case 'footer':
|
|
case 'article':
|
|
case 'li':
|
|
case 'dt':
|
|
case 'dd':
|
|
{
|
|
text += '\n';
|
|
appendChildren(node.childNodes);
|
|
break;
|
|
}
|
|
|
|
default: // includes inline elements
|
|
{
|
|
appendChildren(node.childNodes);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
public toHtml(nodes: mfm.MfmNode[] | null, mentionedRemoteUsers: IMentionedRemoteUsers = []) {
|
|
if (nodes == null) {
|
|
return null;
|
|
}
|
|
|
|
const { window } = new JSDOM('');
|
|
|
|
const doc = window.document;
|
|
|
|
function appendChildren(children: mfm.MfmNode[], targetElement: any): void {
|
|
if (children) {
|
|
for (const child of children.map(x => (handlers as any)[x.type](x))) targetElement.appendChild(child);
|
|
}
|
|
}
|
|
|
|
const handlers: { [K in mfm.MfmNode['type']]: (node: mfm.NodeType<K>) => any } = {
|
|
bold: (node) => {
|
|
const el = doc.createElement('b');
|
|
appendChildren(node.children, el);
|
|
return el;
|
|
},
|
|
|
|
small: (node) => {
|
|
const el = doc.createElement('small');
|
|
appendChildren(node.children, el);
|
|
return el;
|
|
},
|
|
|
|
strike: (node) => {
|
|
const el = doc.createElement('del');
|
|
appendChildren(node.children, el);
|
|
return el;
|
|
},
|
|
|
|
italic: (node) => {
|
|
const el = doc.createElement('i');
|
|
appendChildren(node.children, el);
|
|
return el;
|
|
},
|
|
|
|
fn: (node) => {
|
|
const el = doc.createElement('i');
|
|
appendChildren(node.children, el);
|
|
return el;
|
|
},
|
|
|
|
blockCode: (node) => {
|
|
const pre = doc.createElement('pre');
|
|
const inner = doc.createElement('code');
|
|
inner.textContent = node.props.code;
|
|
pre.appendChild(inner);
|
|
return pre;
|
|
},
|
|
|
|
center: (node) => {
|
|
const el = doc.createElement('div');
|
|
appendChildren(node.children, el);
|
|
return el;
|
|
},
|
|
|
|
emojiCode: (node) => {
|
|
return doc.createTextNode(`\u200B:${node.props.name}:\u200B`);
|
|
},
|
|
|
|
unicodeEmoji: (node) => {
|
|
return doc.createTextNode(node.props.emoji);
|
|
},
|
|
|
|
hashtag: (node) => {
|
|
const a = doc.createElement('a');
|
|
a.href = `${this.config.url}/tags/${node.props.hashtag}`;
|
|
a.textContent = `#${node.props.hashtag}`;
|
|
a.setAttribute('rel', 'tag');
|
|
return a;
|
|
},
|
|
|
|
inlineCode: (node) => {
|
|
const el = doc.createElement('code');
|
|
el.textContent = node.props.code;
|
|
return el;
|
|
},
|
|
|
|
mathInline: (node) => {
|
|
const el = doc.createElement('code');
|
|
el.textContent = node.props.formula;
|
|
return el;
|
|
},
|
|
|
|
mathBlock: (node) => {
|
|
const el = doc.createElement('code');
|
|
el.textContent = node.props.formula;
|
|
return el;
|
|
},
|
|
|
|
link: (node) => {
|
|
const a = doc.createElement('a');
|
|
a.href = node.props.url;
|
|
appendChildren(node.children, a);
|
|
return a;
|
|
},
|
|
|
|
mention: (node) => {
|
|
const a = doc.createElement('a');
|
|
const { username, host, acct } = node.props;
|
|
const remoteUserInfo = mentionedRemoteUsers.find(remoteUser => remoteUser.username === username && remoteUser.host === host);
|
|
a.href = remoteUserInfo ? (remoteUserInfo.url ? remoteUserInfo.url : remoteUserInfo.uri) : `${this.config.url}/${acct}`;
|
|
a.className = 'u-url mention';
|
|
a.textContent = acct;
|
|
return a;
|
|
},
|
|
|
|
quote: (node) => {
|
|
const el = doc.createElement('blockquote');
|
|
appendChildren(node.children, el);
|
|
return el;
|
|
},
|
|
|
|
text: (node) => {
|
|
const el = doc.createElement('span');
|
|
const nodes = node.props.text.split(/\r\n|\r|\n/).map(x => doc.createTextNode(x));
|
|
|
|
for (const x of intersperse<FIXME | 'br'>('br', nodes)) {
|
|
el.appendChild(x === 'br' ? doc.createElement('br') : x);
|
|
}
|
|
|
|
return el;
|
|
},
|
|
|
|
url: (node) => {
|
|
const a = doc.createElement('a');
|
|
a.href = node.props.url;
|
|
a.textContent = node.props.url;
|
|
return a;
|
|
},
|
|
|
|
search: (node) => {
|
|
const a = doc.createElement('a');
|
|
a.href = `https://www.google.com/search?q=${node.props.query}`;
|
|
a.textContent = node.props.content;
|
|
return a;
|
|
},
|
|
|
|
plain: (node) => {
|
|
const el = doc.createElement('span');
|
|
appendChildren(node.children, el);
|
|
return el;
|
|
},
|
|
};
|
|
|
|
appendChildren(nodes, doc.body);
|
|
|
|
return `<p>${doc.body.innerHTML}</p>`;
|
|
}
|
|
}
|