import React from 'react'; import ImmutablePropTypes from 'react-immutable-proptypes'; import PropTypes from 'prop-types'; import { isRtl } from 'flavours/glitch/util/rtl'; import { FormattedMessage } from 'react-intl'; import Permalink from './permalink'; import classnames from 'classnames'; import { autoPlayGif } from 'flavours/glitch/util/initial_state'; import { decode as decodeIDNA } from 'flavours/glitch/util/idna'; // Regex matching what "looks like a link", that is, something that starts with // an optional "http://" or "https://" scheme and then what could look like a // domain main, that is, at least two sequences of characters not including spaces // and separated by "." or an homoglyph. The idea is not to match valid URLs or // domain names, but what could be confused for a valid URL or domain name, // especially to the untrained eye. const h_confusables = 'h\u13c2\u1d58d\u1d4f1\u1d691\u0068\uff48\u1d525\u210e\u1d489\u1d629\u0570\u1d4bd\u1d65d\u1d421\u1d5c1\u1d5f5\u04bb\u1d559'; const t_confusables = 't\u1d42d\u1d5cd\u1d531\u1d565\u1d4c9\u1d669\u1d4fd\u1d69d\u0074\u1d461\u1d601\u1d495\u1d635\u1d599'; const p_confusables = 'p\u0440\u03c1\u1d52d\u1d631\u1d665\u1d429\uff50\u1d6e0\u1d45d\u1d561\u1d595\u1d71a\u1d699\u1d78e\u2ca3\u1d754\u1d6d2\u1d491\u1d7c8\u1d746\u1d4c5\u1d70c\u1d5c9\u0070\u1d780\u03f1\u1d5fd\u2374\u1d7ba\u1d4f9'; const s_confusables = 's\u1d530\u118c1\u1d494\u1d634\u1d4c8\u1d668\uabaa\u1d42c\u1d5cc\u1d460\u1d600\ua731\u0073\uff53\u1d564\u0455\u1d598\u1d4fc\u1d69c\u10448\u01bd'; const column_confusables = ':\u0903\u0a83\u0703\u1803\u05c3\u0704\u0589\u1809\ua789\u16ec\ufe30\u02d0\u2236\u02f8\u003a\uff1a\u205a\ua4fd'; const slash_confusables = '/\u2041\u2f03\u2044\u2cc6\u27cb\u30ce\u002f\u2571\u31d3\u3033\u1735\u2215\u29f8\u1d23a\u4e3f'; const dot_confusables = '.\u002e\u0660\u06f0\u0701\u0702\u2024\ua4f8\ua60e\u10a50\u1d16d'; const linkRegex = new RegExp(`^\\s*(([${h_confusables}][${t_confusables}][${t_confusables}][${p_confusables}][${s_confusables}]?[${column_confusables}][${slash_confusables}][${slash_confusables}]))?[^:/\\n ]+([${dot_confusables}][^:/\\n ]+)+`); const textMatchesTarget = (text, origin, host) => { return (text === origin || text === host || text.startsWith(origin + '/') || text.startsWith(host + '/') || 'www.' + text === host || ('www.' + text).startsWith(host + '/')); } // If `checkUrlLike` is true, consider only URL-like link texts to be misleading const isLinkMisleading = (link, checkUrlLike = true) => { let linkTextParts = []; // Reconstruct visible text, as we do not have much control over how links // from remote software look, and we can't rely on `innerText` because the // `invisible` class does not set `display` to `none`. const walk = (node) => { switch (node.nodeType) { case Node.TEXT_NODE: linkTextParts.push(node.textContent); break; case Node.ELEMENT_NODE: if (node.classList.contains('invisible')) return; const children = node.childNodes; for (let i = 0; i < children.length; i++) { walk(children[i]); } break; } }; walk(link); const linkText = linkTextParts.join(''); const targetURL = new URL(link.href); // The following may not work with international domain names if (textMatchesTarget(linkText, targetURL.origin, targetURL.host) || textMatchesTarget(linkText.toLowerCase(), targetURL.origin, targetURL.host)) { return false; } // The link hasn't been recognized, maybe it features an international domain name const hostname = decodeIDNA(targetURL.hostname); const host = targetURL.host.replace(targetURL.hostname, hostname); const origin = targetURL.origin.replace(targetURL.host, host); if (textMatchesTarget(linkText, origin, host)) { return false; } // If the link text looks like an URL or auto-generated link, it is misleading return !checkUrlLike || linkRegex.test(linkText); }; export default class StatusContent extends React.PureComponent { static propTypes = { status: ImmutablePropTypes.map.isRequired, expanded: PropTypes.bool, collapsed: PropTypes.bool, onExpandedToggle: PropTypes.func, media: PropTypes.element, mediaIcon: PropTypes.string, parseClick: PropTypes.func, disabled: PropTypes.bool, onUpdate: PropTypes.func, linkRewriting: PropTypes.string, }; static defaultProps = { linkRewriting: 'tag', }; state = { hidden: true, }; _updateStatusLinks () { const node = this.contentsNode; const { linkRewriting } = this.props; if (!node) { return; } const links = node.querySelectorAll('a'); for (var i = 0; i < links.length; ++i) { let link = links[i]; if (link.classList.contains('status-link')) { continue; } link.classList.add('status-link'); let mention = this.props.status.get('mentions').find(item => link.href === item.get('url')); if (mention) { link.addEventListener('click', this.onMentionClick.bind(this, mention), false); link.setAttribute('title', mention.get('acct')); } else if (link.textContent[0] === '#' || (link.previousSibling && link.previousSibling.textContent && link.previousSibling.textContent[link.previousSibling.textContent.length - 1] === '#')) { link.addEventListener('click', this.onHashtagClick.bind(this, link.text), false); } else { link.addEventListener('click', this.onLinkClick.bind(this), false); link.setAttribute('title', link.href); link.classList.add('unhandled-link'); if (linkRewriting === 'rewrite' && isLinkMisleading(link)) { // Rewrite misleading links entirely while (link.firstChild) { link.removeChild(link.firstChild); } const prefix = (link.href.match(/https?:\/\/(www\.)?/) || [''])[0]; const text = link.href.substr(prefix.length, 30); const suffix = link.href.substr(prefix.length + 30); const cutoff = !!suffix; const prefixTag = document.createElement('span'); prefixTag.classList.add('invisible'); prefixTag.textContent = prefix; link.appendChild(prefixTag); const textTag = document.createElement('span'); if (cutoff) { textTag.classList.add('ellipsis'); } textTag.textContent = text; link.appendChild(textTag); const suffixTag = document.createElement('span'); suffixTag.classList.add('invisible'); suffixTag.textContent = suffix; link.appendChild(suffixTag); } else if (linkRewriting === 'tag' && isLinkMisleading(link, false)) { // Add a tag besides the link to display its origin const tag = document.createElement('span'); tag.classList.add('link-origin-tag'); tag.textContent = `[${new URL(link.href).host}]`; link.insertAdjacentText('beforeend', ' '); link.insertAdjacentElement('beforeend', tag); } } link.setAttribute('target', '_blank'); link.setAttribute('rel', 'noopener'); } } _updateStatusEmojis () { const node = this.node; if (!node || autoPlayGif) { return; } const emojis = node.querySelectorAll('.custom-emoji'); for (var i = 0; i < emojis.length; i++) { let emoji = emojis[i]; if (emoji.classList.contains('status-emoji')) { continue; } emoji.classList.add('status-emoji'); emoji.addEventListener('mouseenter', this.handleEmojiMouseEnter, false); emoji.addEventListener('mouseleave', this.handleEmojiMouseLeave, false); } } componentDidMount () { this._updateStatusLinks(); this._updateStatusEmojis(); } componentDidUpdate () { this._updateStatusLinks(); this._updateStatusEmojis(); if (this.props.onUpdate) this.props.onUpdate(); } onLinkClick = (e) => { if (this.props.collapsed) { if (this.props.parseClick) this.props.parseClick(e); } } onMentionClick = (mention, e) => { if (this.props.parseClick) { this.props.parseClick(e, `/accounts/${mention.get('id')}`); } } onHashtagClick = (hashtag, e) => { hashtag = hashtag.replace(/^#/, '').toLowerCase(); if (this.props.parseClick) { this.props.parseClick(e, `/timelines/tag/${hashtag}`); } } handleEmojiMouseEnter = ({ target }) => { target.src = target.getAttribute('data-original'); } handleEmojiMouseLeave = ({ target }) => { target.src = target.getAttribute('data-static'); } handleMouseDown = (e) => { this.startXY = [e.clientX, e.clientY]; } handleMouseUp = (e) => { const { parseClick, disabled } = this.props; if (disabled || !this.startXY) { return; } const [ startX, startY ] = this.startXY; const [ deltaX, deltaY ] = [Math.abs(e.clientX - startX), Math.abs(e.clientY - startY)]; let element = e.target; while (element) { if (element.localName === 'button' || element.localName === 'video' || element.localName === 'a' || element.localName === 'label') { return; } element = element.parentNode; } if (deltaX + deltaY < 5 && e.button === 0 && parseClick) { parseClick(e); } this.startXY = null; } handleSpoilerClick = (e) => { e.preventDefault(); if (this.props.onExpandedToggle) { this.props.onExpandedToggle(); } else { this.setState({ hidden: !this.state.hidden }); } } setRef = (c) => { this.node = c; } setContentsRef = (c) => { this.contentsNode = c; } render () { const { status, media, mediaIcon, parseClick, disabled, linkRewriting, } = this.props; const hidden = this.props.onExpandedToggle ? !this.props.expanded : this.state.hidden; const content = { __html: status.get('contentHtml') }; const spoilerContent = { __html: status.get('spoilerHtml') }; const directionStyle = { direction: 'ltr' }; const classNames = classnames('status__content', { 'status__content--with-action': parseClick && !disabled, 'status__content--with-spoiler': status.get('spoiler_text').length > 0, }); if (isRtl(status.get('search_index'))) { directionStyle.direction = 'rtl'; } if (status.get('spoiler_text').length > 0) { let mentionsPlaceholder = ''; const mentionLinks = status.get('mentions').map(item => ( @{item.get('username')} )).reduce((aggregate, item) => [...aggregate, item, ' '], []); const toggleText = hidden ? [ , mediaIcon ? (