Merge branch 'glitch'`

1 files changed, 134 insertions, 15 deletions

diff --git a/app/javascript/flavours/glitch/components/status_content.js b/app/javascript/flavours/glitch/components/status_content.js
index 07a0d1d5d..2c79de4db 100644
--- a/app/javascript/flavours/glitch/components/status_content.js
+++ b/app/javascript/flavours/glitch/components/status_content.js
@@ -5,6 +5,55 @@ import { isRtl } from 'flavours/glitch/util/rtl';
 import { FormattedMessage } from 'react-intl';
 import Permalink from './permalink';
 import classnames from 'classnames';
+import Icon from 'flavours/glitch/components/icon';
+import { autoPlayGif } from 'flavours/glitch/util/initial_state';
+import { decode as decodeIDNA } from 'flavours/glitch/util/idna';
+
+const textMatchesTarget = (text, origin, host) => {
+  return (text === origin || text === host
+          || text.startsWith(origin + '/') || text.startsWith(host + '/')
+          || 'www.' + text === host || ('www.' + text).startsWith(host + '/'));
+}
+
+const isLinkMisleading = (link) => {
+  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).normalize('NFKC');
+  const host = targetURL.host.replace(targetURL.hostname, hostname);
+  const origin = targetURL.origin.replace(targetURL.host, host);
+  const text = linkText.normalize('NFKC');
+  return !(textMatchesTarget(text, origin, host) || textMatchesTarget(text.toLowerCase(), origin, host));
+};
 
 export default class StatusContent extends React.PureComponent {
 
@@ -18,6 +67,13 @@ export default class StatusContent extends React.PureComponent {
     parseClick: PropTypes.func,
     disabled: PropTypes.bool,
     onUpdate: PropTypes.func,
+    tagLinks: PropTypes.bool,
+    rewriteMentions: PropTypes.string,
+  };
+
+  static defaultProps = {
+    tagLinks: true,
+    rewriteMentions: 'no',
   };
 
   state = {
@@ -25,7 +81,8 @@ export default class StatusContent extends React.PureComponent {
   };
 
   _updateStatusLinks () {
-    const node = this.node;
+    const node = this.contentsNode;
+    const { tagLinks, rewriteMentions } = this.props;
 
     if (!node) {
       return;
@@ -45,24 +102,70 @@ export default class StatusContent extends React.PureComponent {
       if (mention) {
         link.addEventListener('click', this.onMentionClick.bind(this, mention), false);
         link.setAttribute('title', mention.get('acct'));
+        if (rewriteMentions !== 'no') {
+          while (link.firstChild) link.removeChild(link.firstChild);
+          link.appendChild(document.createTextNode('@'));
+          const acctSpan = document.createElement('span');
+          acctSpan.textContent = rewriteMentions === 'acct' ? mention.get('acct') : mention.get('username');
+          link.appendChild(acctSpan);
+        }
       } 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');
+
+        try {
+          if (tagLinks && isLinkMisleading(link)) {
+            // 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);
+          }
+        } catch (e) {
+          // The URL is invalid, remove the href just to be safe
+          if (tagLinks && e instanceof TypeError) link.removeAttribute('href');
+        }
       }
 
       link.setAttribute('target', '_blank');
-      link.setAttribute('rel', 'noopener');
+      link.setAttribute('rel', 'noopener noreferrer');
+    }
+  }
+
+  _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();
   }
 
@@ -79,13 +182,21 @@ export default class StatusContent extends React.PureComponent {
   }
 
   onHashtagClick = (hashtag, e) => {
-    hashtag = hashtag.replace(/^#/, '').toLowerCase();
+    hashtag = hashtag.replace(/^#/, '');
 
     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];
   }
@@ -102,7 +213,7 @@ export default class StatusContent extends React.PureComponent {
 
     let element = e.target;
     while (element) {
-      if (element.localName === 'button' || element.localName === 'video' || element.localName === 'a' || element.localName === 'label') {
+      if (['button', 'video', 'a', 'label', 'wave'].includes(element.localName)) {
         return;
       }
       element = element.parentNode;
@@ -129,6 +240,10 @@ export default class StatusContent extends React.PureComponent {
     this.node = c;
   }
 
+  setContentsRef = (c) => {
+    this.contentsNode = c;
+  }
+
   render () {
     const {
       status,
@@ -136,6 +251,8 @@ export default class StatusContent extends React.PureComponent {
       mediaIcon,
       parseClick,
       disabled,
+      tagLinks,
+      rewriteMentions,
     } = this.props;
 
     const hidden = this.props.onExpandedToggle ? !this.props.expanded : this.state.hidden;
@@ -173,10 +290,10 @@ export default class StatusContent extends React.PureComponent {
           key='0'
         />,
         mediaIcon ? (
-          <i
-            className={
-              `fa fa-fw fa-${mediaIcon} status__content__spoiler-icon`
-            }
+          <Icon
+            fixedWidth
+            className='status__content__spoiler-icon'
+            id={mediaIcon}
             aria-hidden='true'
             key='1'
           />
@@ -194,11 +311,11 @@ export default class StatusContent extends React.PureComponent {
       }
 
       return (
-        <div className={classNames} tabIndex='0' onMouseDown={this.handleMouseDown} onMouseUp={this.handleMouseUp}>
+        <div className={classNames} tabIndex='0' onMouseDown={this.handleMouseDown} onMouseUp={this.handleMouseUp} ref={this.setRef}>
           <p
             style={{ marginBottom: hidden && status.get('mentions').isEmpty() ? '0px' : null }}
           >
-            <span dangerouslySetInnerHTML={spoilerContent} lang={status.get('language')} />
+            <span dangerouslySetInnerHTML={spoilerContent} />
             {' '}
             <button tabIndex='0' className='status__content__spoiler-link' onClick={this.handleSpoilerClick}>
               {toggleText}
@@ -209,12 +326,12 @@ export default class StatusContent extends React.PureComponent {
 
           <div className={`status__content__spoiler ${!hidden ? 'status__content__spoiler--visible' : ''}`}>
             <div
-              ref={this.setRef}
+              ref={this.setContentsRef}
+              key={`contents-${tagLinks}`}
               style={directionStyle}
               tabIndex={!hidden ? 0 : null}
               dangerouslySetInnerHTML={content}
               className='status__content__text'
-              lang={status.get('language')}
             />
             {media}
           </div>
@@ -229,11 +346,12 @@ export default class StatusContent extends React.PureComponent {
           onMouseDown={this.handleMouseDown}
           onMouseUp={this.handleMouseUp}
           tabIndex='0'
+          ref={this.setRef}
         >
           <div
-            ref={this.setRef}
+            ref={this.setContentsRef}
+            key={`contents-${tagLinks}-${rewriteMentions}`}
             dangerouslySetInnerHTML={content}
-            lang={status.get('language')}
             className='status__content__text'
             tabIndex='0'
           />
@@ -246,8 +364,9 @@ export default class StatusContent extends React.PureComponent {
           className='status__content'
           style={directionStyle}
           tabIndex='0'
+          ref={this.setRef}
         >
-          <div ref={this.setRef} className='status__content__text' dangerouslySetInnerHTML={content} lang={status.get('language')} tabIndex='0' />
+          <div ref={this.setContentsRef} key={`contents-${tagLinks}`} className='status__content__text' dangerouslySetInnerHTML={content} tabIndex='0' />
           {media}
         </div>
       );