Merge pull request #1208 from ThibG/glitch-soc/merge-upstream

Merge upstream changes

52 files changed, 1135 insertions, 146 deletions

diff --git a/app/javascript/flavours/glitch/actions/alerts.js b/app/javascript/flavours/glitch/actions/alerts.js
index ef2500e7b..cd36d8007 100644
--- a/app/javascript/flavours/glitch/actions/alerts.js
+++ b/app/javascript/flavours/glitch/actions/alerts.js
@@ -3,6 +3,8 @@ import { defineMessages } from 'react-intl';
 const messages = defineMessages({
   unexpectedTitle: { id: 'alert.unexpected.title', defaultMessage: 'Oops!' },
   unexpectedMessage: { id: 'alert.unexpected.message', defaultMessage: 'An unexpected error occurred.' },
+  rateLimitedTitle: { id: 'alert.rate_limited.title', defaultMessage: 'Rate limited' },
+  rateLimitedMessage: { id: 'alert.rate_limited.message', defaultMessage: 'Please retry after {retry_time, time, medium}.' },
 });
 
 export const ALERT_SHOW    = 'ALERT_SHOW';
@@ -23,23 +25,29 @@ export function clearAlert() {
   };
 };
 
-export function showAlert(title = messages.unexpectedTitle, message = messages.unexpectedMessage) {
+export function showAlert(title = messages.unexpectedTitle, message = messages.unexpectedMessage, message_values = undefined) {
   return {
     type: ALERT_SHOW,
     title,
     message,
+    message_values,
   };
 };
 
 export function showAlertForError(error) {
   if (error.response) {
-    const { data, status, statusText } = error.response;
+    const { data, status, statusText, headers } = error.response;
 
     if (status === 404 || status === 410) {
       // Skip these errors as they are reflected in the UI
       return { type: ALERT_NOOP };
     }
 
+    if (status === 429 && headers['x-ratelimit-reset']) {
+      const reset_date = new Date(headers['x-ratelimit-reset']);
+      return showAlert(messages.rateLimitedTitle, messages.rateLimitedMessage, { 'retry_time': reset_date });
+    }
+
     let message = statusText;
     let title   = `${status}`;
 
diff --git a/app/javascript/flavours/glitch/components/status.js b/app/javascript/flavours/glitch/components/status.js
index 5b69ac4da..e7bf1f4d0 100644
--- a/app/javascript/flavours/glitch/components/status.js
+++ b/app/javascript/flavours/glitch/components/status.js
@@ -10,7 +10,7 @@ import AttachmentList from './attachment_list';
 import Card from '../features/status/components/card';
 import { injectIntl, FormattedMessage } from 'react-intl';
 import ImmutablePureComponent from 'react-immutable-pure-component';
-import { MediaGallery, Video } from 'flavours/glitch/util/async-components';
+import { MediaGallery, Video, Audio } from 'flavours/glitch/util/async-components';
 import { HotKeys } from 'react-hotkeys';
 import NotificationOverlayContainer from 'flavours/glitch/features/notifications/containers/overlay_container';
 import classNames from 'classnames';
@@ -443,11 +443,15 @@ class Status extends ImmutablePureComponent {
   }
 
   renderLoadingMediaGallery () {
-    return <div className='media_gallery' style={{ height: '110px' }} />;
+    return <div className='media-gallery' style={{ height: '110px' }} />;
   }
 
   renderLoadingVideoPlayer () {
-    return <div className='media-spoiler-video' style={{ height: '110px' }} />;
+    return <div className='video-player' style={{ height: '110px' }} />;
+  }
+
+  renderLoadingAudioPlayer () {
+    return <div className='audio-player' style={{ height: '110px' }} />;
   }
 
   render () {
@@ -561,7 +565,24 @@ class Status extends ImmutablePureComponent {
             media={status.get('media_attachments')}
           />
         );
-      } else if (['video', 'audio'].includes(attachments.getIn([0, 'type']))) {
+      } else if (attachments.getIn([0, 'type']) === 'audio') {
+        const attachment = status.getIn(['media_attachments', 0]);
+
+        media = (
+          <Bundle fetchComponent={Audio} loading={this.renderLoadingAudioPlayer} >
+            {Component => (
+              <Component
+                src={attachment.get('url')}
+                alt={attachment.get('description')}
+                duration={attachment.getIn(['meta', 'original', 'duration'], 0)}
+                peaks={[0]}
+                height={70}
+              />
+            )}
+          </Bundle>
+        );
+        mediaIcon = 'music';
+      } else if (attachments.getIn([0, 'type']) === 'video') {
         const attachment = status.getIn(['media_attachments', 0]);
 
         media = (
@@ -584,7 +605,7 @@ class Status extends ImmutablePureComponent {
             />)}
           </Bundle>
         );
-        mediaIcon = attachment.get('type') === 'video' ? 'video-camera' : 'music';
+        mediaIcon = 'video-camera';
       } else {  //  Media type is 'image' or 'gifv'
         media = (
           <Bundle fetchComponent={MediaGallery} loading={this.renderLoadingMediaGallery}>
diff --git a/app/javascript/flavours/glitch/components/status_content.js b/app/javascript/flavours/glitch/components/status_content.js
index e45a9fc42..c34464fde 100644
--- a/app/javascript/flavours/glitch/components/status_content.js
+++ b/app/javascript/flavours/glitch/components/status_content.js
@@ -212,7 +212,7 @@ 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;
diff --git a/app/javascript/flavours/glitch/containers/media_container.js b/app/javascript/flavours/glitch/containers/media_container.js
index 1b480658f..c1738db4d 100644
--- a/app/javascript/flavours/glitch/containers/media_container.js
+++ b/app/javascript/flavours/glitch/containers/media_container.js
@@ -7,6 +7,7 @@ import MediaGallery from 'flavours/glitch/components/media_gallery';
 import Video from 'flavours/glitch/features/video';
 import Card from 'flavours/glitch/features/status/components/card';
 import Poll from 'flavours/glitch/components/poll';
+import Audio from 'flavours/glitch/features/audio';
 import ModalRoot from 'flavours/glitch/components/modal_root';
 import MediaModal from 'flavours/glitch/features/ui/components/media_modal';
 import { List as ImmutableList, fromJS } from 'immutable';
@@ -14,7 +15,7 @@ import { List as ImmutableList, fromJS } from 'immutable';
 const { localeData, messages } = getLocale();
 addLocaleData(localeData);
 
-const MEDIA_COMPONENTS = { MediaGallery, Video, Card, Poll };
+const MEDIA_COMPONENTS = { MediaGallery, Video, Card, Poll, Audio };
 
 export default class MediaContainer extends PureComponent {
 
diff --git a/app/javascript/flavours/glitch/features/audio/index.js b/app/javascript/flavours/glitch/features/audio/index.js
new file mode 100644
index 000000000..0830a4684
--- /dev/null
+++ b/app/javascript/flavours/glitch/features/audio/index.js
@@ -0,0 +1,226 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+import WaveSurfer from 'wavesurfer.js';
+import { defineMessages, injectIntl } from 'react-intl';
+import { formatTime } from 'flavours/glitch/features/video';
+import Icon from 'flavours/glitch/components/icon';
+import classNames from 'classnames';
+import { throttle } from 'lodash';
+
+const messages = defineMessages({
+  play: { id: 'video.play', defaultMessage: 'Play' },
+  pause: { id: 'video.pause', defaultMessage: 'Pause' },
+  mute: { id: 'video.mute', defaultMessage: 'Mute sound' },
+  unmute: { id: 'video.unmute', defaultMessage: 'Unmute sound' },
+});
+
+export default @injectIntl
+class Audio extends React.PureComponent {
+
+  static propTypes = {
+    src: PropTypes.string.isRequired,
+    alt: PropTypes.string,
+    duration: PropTypes.number,
+    peaks: PropTypes.arrayOf(PropTypes.number),
+    height: PropTypes.number,
+    preload: PropTypes.bool,
+    editable: PropTypes.bool,
+    intl: PropTypes.object.isRequired,
+  };
+
+  state = {
+    currentTime: 0,
+    duration: null,
+    paused: true,
+    muted: false,
+    volume: 0.5,
+  };
+
+  // hard coded in components.scss
+  // any way to get ::before values programatically?
+
+  volWidth = 50;
+
+  volOffset = 70;
+
+  volHandleOffset = v => {
+    const offset = v * this.volWidth + this.volOffset;
+    return (offset > 110) ? 110 : offset;
+  }
+
+  setVolumeRef = c => {
+    this.volume = c;
+  }
+
+  setWaveformRef = c => {
+    this.waveform = c;
+  }
+
+  componentDidMount () {
+    if (this.waveform) {
+      this._updateWaveform();
+    }
+  }
+
+  componentDidUpdate (prevProps) {
+    if (this.waveform && prevProps.src !== this.props.src) {
+      this._updateWaveform();
+    }
+  }
+
+  componentWillUnmount () {
+    if (this.wavesurfer) {
+      this.wavesurfer.destroy();
+      this.wavesurfer = null;
+    }
+  }
+
+  _updateWaveform () {
+    const { src, height, duration, peaks, preload } = this.props;
+
+    const progressColor = window.getComputedStyle(document.querySelector('.audio-player__progress-placeholder')).getPropertyValue('background-color');
+    const waveColor     = window.getComputedStyle(document.querySelector('.audio-player__wave-placeholder')).getPropertyValue('background-color');
+
+    if (this.wavesurfer) {
+      this.wavesurfer.destroy();
+      this.loaded = false;
+    }
+
+    const wavesurfer = WaveSurfer.create({
+      container: this.waveform,
+      height,
+      barWidth: 3,
+      cursorWidth: 0,
+      progressColor,
+      waveColor,
+      backend: 'MediaElement',
+      interact: preload,
+    });
+
+    wavesurfer.setVolume(this.state.volume);
+
+    if (preload) {
+      wavesurfer.load(src);
+      this.loaded = true;
+    } else {
+      wavesurfer.load(src, peaks, 'none', duration);
+      this.loaded = false;
+    }
+
+    wavesurfer.on('ready', () => this.setState({ duration: Math.floor(wavesurfer.getDuration()) }));
+    wavesurfer.on('audioprocess', () => this.setState({ currentTime: Math.floor(wavesurfer.getCurrentTime()) }));
+    wavesurfer.on('pause', () => this.setState({ paused: true }));
+    wavesurfer.on('play', () => this.setState({ paused: false }));
+    wavesurfer.on('volume', volume => this.setState({ volume }));
+    wavesurfer.on('mute', muted => this.setState({ muted }));
+
+    this.wavesurfer = wavesurfer;
+  }
+
+  togglePlay = () => {
+    if (this.state.paused) {
+      if (!this.props.preload && !this.loaded) {
+        this.wavesurfer.createBackend();
+        this.wavesurfer.createPeakCache();
+        this.wavesurfer.load(this.props.src);
+        this.wavesurfer.toggleInteraction();
+        this.loaded = true;
+      }
+
+      this.wavesurfer.play();
+      this.setState({ paused: false });
+    } else {
+      this.wavesurfer.pause();
+      this.setState({ paused: true });
+    }
+  }
+
+  toggleMute = () => {
+    this.wavesurfer.setMute(!this.state.muted);
+  }
+
+  handleVolumeMouseDown = e => {
+    document.addEventListener('mousemove', this.handleMouseVolSlide, true);
+    document.addEventListener('mouseup', this.handleVolumeMouseUp, true);
+    document.addEventListener('touchmove', this.handleMouseVolSlide, true);
+    document.addEventListener('touchend', this.handleVolumeMouseUp, true);
+
+    this.handleMouseVolSlide(e);
+
+    e.preventDefault();
+    e.stopPropagation();
+  }
+
+  handleVolumeMouseUp = () => {
+    document.removeEventListener('mousemove', this.handleMouseVolSlide, true);
+    document.removeEventListener('mouseup', this.handleVolumeMouseUp, true);
+    document.removeEventListener('touchmove', this.handleMouseVolSlide, true);
+    document.removeEventListener('touchend', this.handleVolumeMouseUp, true);
+  }
+
+  handleMouseVolSlide = throttle(e => {
+    const rect = this.volume.getBoundingClientRect();
+    const x    = (e.clientX - rect.left) / this.volWidth; // x position within the element.
+
+    if(!isNaN(x)) {
+      let slideamt = x;
+
+      if (x > 1) {
+        slideamt = 1;
+      } else if(x < 0) {
+        slideamt = 0;
+      }
+
+      this.wavesurfer.setVolume(slideamt);
+    }
+  }, 60);
+
+  render () {
+    const { height, intl, alt, editable } = this.props;
+    const { paused, muted, volume, currentTime } = this.state;
+
+    const volumeWidth     = muted ? 0 : volume * this.volWidth;
+    const volumeHandleLoc = muted ? this.volHandleOffset(0) : this.volHandleOffset(volume);
+
+    return (
+      <div className={classNames('audio-player', { editable })}>
+        <div className='audio-player__progress-placeholder' style={{ display: 'none' }} />
+        <div className='audio-player__wave-placeholder' style={{ display: 'none' }} />
+
+        <div
+          className='audio-player__waveform'
+          aria-label={alt}
+          title={alt}
+          style={{ height }}
+          ref={this.setWaveformRef}
+        />
+
+        <div className='video-player__controls active'>
+          <div className='video-player__buttons-bar'>
+            <div className='video-player__buttons left'>
+              <button type='button' aria-label={intl.formatMessage(paused ? messages.play : messages.pause)} onClick={this.togglePlay}><Icon icon={paused ? 'play' : 'pause'} fixedWidth /></button>
+              <button type='button' aria-label={intl.formatMessage(muted ? messages.unmute : messages.mute)} onClick={this.toggleMute}><Icon icon={muted ? 'volume-off' : 'volume-up'} fixedWidth /></button>
+
+              <div className='video-player__volume' onMouseDown={this.handleVolumeMouseDown} ref={this.setVolumeRef}>
+                <div className='video-player__volume__current' style={{ width: `${volumeWidth}px` }} />
+
+                <span
+                  className={classNames('video-player__volume__handle')}
+                  tabIndex='0'
+                  style={{ left: `${volumeHandleLoc}px` }}
+                />
+              </div>
+
+              <span>
+                <span className='video-player__time-current'>{formatTime(currentTime)}</span>
+                <span className='video-player__time-sep'>/</span>
+                <span className='video-player__time-total'>{formatTime(this.state.duration || Math.floor(this.props.duration))}</span>
+              </span>
+            </div>
+          </div>
+        </div>
+      </div>
+    );
+  }
+
+}
diff --git a/app/javascript/flavours/glitch/features/compose/components/header.js b/app/javascript/flavours/glitch/features/compose/components/header.js
index 2e29084f2..8b0f540ef 100644
--- a/app/javascript/flavours/glitch/features/compose/components/header.js
+++ b/app/javascript/flavours/glitch/features/compose/components/header.js
@@ -53,8 +53,18 @@ class Header extends ImmutablePureComponent {
     showNotificationsBadge: PropTypes.bool,
     intl: PropTypes.object,
     onSettingsClick: PropTypes.func,
+    onLogout: PropTypes.func.isRequired,
   };
 
+  handleLogoutClick = e => {
+    e.preventDefault();
+    e.stopPropagation();
+
+    this.props.onLogout();
+
+    return false;
+  }
+
   render () {
     const { intl, columns, unreadNotifications, showNotificationsBadge, onSettingsClick } = this.props;
 
@@ -114,7 +124,7 @@ class Header extends ImmutablePureComponent {
         ><Icon icon='cogs' /></a>
         <a
           aria-label={intl.formatMessage(messages.logout)}
-          data-method='delete'
+          onClick={this.handleLogoutClick}
           href={ signOutLink }
           title={intl.formatMessage(messages.logout)}
         ><Icon icon='sign-out' /></a>
diff --git a/app/javascript/flavours/glitch/features/compose/containers/header_container.js b/app/javascript/flavours/glitch/features/compose/containers/header_container.js
index ce1dea319..b4dcb4d56 100644
--- a/app/javascript/flavours/glitch/features/compose/containers/header_container.js
+++ b/app/javascript/flavours/glitch/features/compose/containers/header_container.js
@@ -1,6 +1,13 @@
 import { openModal } from 'flavours/glitch/actions/modal';
 import { connect }   from 'react-redux';
+import { defineMessages, injectIntl } from 'react-intl';
 import Header from '../components/header';
+import { logOut } from 'flavours/glitch/util/log_out';
+
+const messages = defineMessages({
+  logoutMessage: { id: 'confirmations.logout.message', defaultMessage: 'Are you sure you want to log out?' },
+  logoutConfirm: { id: 'confirmations.logout.confirm', defaultMessage: 'Log out' },
+});
 
 const mapStateToProps = state => {
   return {
@@ -16,6 +23,13 @@ const mapDispatchToProps = (dispatch, { intl }) => ({
     e.stopPropagation();
     dispatch(openModal('SETTINGS', {}));
   },
+  onLogout () {
+    dispatch(openModal('CONFIRM', {
+      message: intl.formatMessage(messages.logoutMessage),
+      confirm: intl.formatMessage(messages.logoutConfirm),
+      onConfirm: () => logOut(),
+    }));
+  },
 });
 
-export default connect(mapStateToProps, mapDispatchToProps)(Header);
+export default injectIntl(connect(mapStateToProps, mapDispatchToProps)(Header));
diff --git a/app/javascript/flavours/glitch/features/getting_started/index.js b/app/javascript/flavours/glitch/features/getting_started/index.js
index 36a445dca..961c16fbc 100644
--- a/app/javascript/flavours/glitch/features/getting_started/index.js
+++ b/app/javascript/flavours/glitch/features/getting_started/index.js
@@ -13,7 +13,7 @@ import { fetchFollowRequests } from 'flavours/glitch/actions/accounts';
 import { List as ImmutableList } from 'immutable';
 import { createSelector } from 'reselect';
 import { fetchLists } from 'flavours/glitch/actions/lists';
-import { preferencesLink, signOutLink } from 'flavours/glitch/util/backend_links';
+import { preferencesLink } from 'flavours/glitch/util/backend_links';
 import NavigationBar from '../compose/components/navigation_bar';
 import LinkFooter from 'flavours/glitch/features/ui/components/link_footer';
 
@@ -30,7 +30,6 @@ const messages = defineMessages({
   preferences: { id: 'navigation_bar.preferences', defaultMessage: 'Preferences' },
   settings: { id: 'navigation_bar.app_settings', defaultMessage: 'App settings' },
   follow_requests: { id: 'navigation_bar.follow_requests', defaultMessage: 'Follow requests' },
-  sign_out: { id: 'navigation_bar.logout', defaultMessage: 'Logout' },
   lists: { id: 'navigation_bar.lists', defaultMessage: 'Lists' },
   keyboard_shortcuts: { id: 'navigation_bar.keyboard_shortcuts', defaultMessage: 'Keyboard shortcuts' },
   lists: { id: 'navigation_bar.lists', defaultMessage: 'Lists' },
@@ -174,7 +173,6 @@ const NAVIGATION_PANEL_BREAKPOINT = 600 + (285 * 2) + (10 * 2);
             <ColumnSubheading text={intl.formatMessage(messages.settings_subheading)} />
             { preferencesLink !== undefined && <ColumnLink icon='cog' text={intl.formatMessage(messages.preferences)} href={preferencesLink} /> }
             <ColumnLink icon='cogs' text={intl.formatMessage(messages.settings)} onClick={openSettings} />
-            <ColumnLink icon='sign-out' text={intl.formatMessage(messages.sign_out)} href={signOutLink} method='delete' />
           </div>
 
           <LinkFooter />
diff --git a/app/javascript/flavours/glitch/features/status/components/detailed_status.js b/app/javascript/flavours/glitch/features/status/components/detailed_status.js
index 873ea35fb..5242c7d5c 100644
--- a/app/javascript/flavours/glitch/features/status/components/detailed_status.js
+++ b/app/javascript/flavours/glitch/features/status/components/detailed_status.js
@@ -11,6 +11,7 @@ import { FormattedDate, FormattedNumber } from 'react-intl';
 import Card from './card';
 import ImmutablePureComponent from 'react-immutable-pure-component';
 import Video from 'flavours/glitch/features/video';
+import Audio from 'flavours/glitch/features/audio';
 import VisibilityIcon from 'flavours/glitch/components/status_visibility_icon';
 import scheduleIdleTask from 'flavours/glitch/util/schedule_idle_task';
 import classNames from 'classnames';
@@ -131,7 +132,20 @@ export default class DetailedStatus extends ImmutablePureComponent {
     } else if (status.get('media_attachments').size > 0) {
       if (status.get('media_attachments').some(item => item.get('type') === 'unknown')) {
         media = <AttachmentList media={status.get('media_attachments')} />;
-      } else if (['video', 'audio'].includes(status.getIn(['media_attachments', 0, 'type']))) {
+      } else if (status.getIn(['media_attachments', 0, 'type']) === 'audio') {
+        const attachment = status.getIn(['media_attachments', 0]);
+
+        media = (
+          <Audio
+            src={attachment.get('url')}
+            alt={attachment.get('description')}
+            duration={attachment.getIn(['meta', 'original', 'duration'], 0)}
+            height={110}
+            preload
+          />
+        );
+        mediaIcon = 'music';
+      } else if (status.getIn(['media_attachments', 0, 'type']) === 'video') {
         const attachment = status.getIn(['media_attachments', 0]);
         media = (
           <Video
@@ -150,7 +164,7 @@ export default class DetailedStatus extends ImmutablePureComponent {
             onToggleVisibility={this.props.onToggleMediaVisibility}
           />
         );
-        mediaIcon = attachment.get('type') === 'video' ? 'video-camera' : 'music';
+        mediaIcon = 'video-camera';
       } else {
         media = (
           <MediaGallery
diff --git a/app/javascript/flavours/glitch/features/ui/components/focal_point_modal.js b/app/javascript/flavours/glitch/features/ui/components/focal_point_modal.js
index c4cc18f94..7d1deb4ce 100644
--- a/app/javascript/flavours/glitch/features/ui/components/focal_point_modal.js
+++ b/app/javascript/flavours/glitch/features/ui/components/focal_point_modal.js
@@ -10,6 +10,7 @@ import { FormattedMessage, defineMessages, injectIntl } from 'react-intl';
 import IconButton from 'flavours/glitch/components/icon_button';
 import Button from 'flavours/glitch/components/button';
 import Video from 'flavours/glitch/features/video';
+import Audio from 'flavours/glitch/features/audio';
 import Textarea from 'react-textarea-autosize';
 import UploadProgress from 'flavours/glitch/features/compose/components/upload_progress';
 import CharacterCounter from 'flavours/glitch/features/compose/components/character_counter';
@@ -244,12 +245,23 @@ class FocalPointModal extends ImmutablePureComponent {
               </div>
             )}
 
-            {['audio', 'video'].includes(media.get('type')) && (
+            {media.get('type') === 'video' && (
               <Video
                 preview={media.get('preview_url')}
                 blurhash={media.get('blurhash')}
                 src={media.get('url')}
                 detailed
+                inline
+                editable
+              />
+            )}
+
+            {media.get('type') === 'audio' && (
+              <Audio
+                src={media.get('url')}
+                duration={media.getIn(['meta', 'original', 'duration'], 0)}
+                height={150}
+                preload
                 editable
               />
             )}
diff --git a/app/javascript/flavours/glitch/features/ui/components/link_footer.js b/app/javascript/flavours/glitch/features/ui/components/link_footer.js
index 3e724fffb..1712da83e 100644
--- a/app/javascript/flavours/glitch/features/ui/components/link_footer.js
+++ b/app/javascript/flavours/glitch/features/ui/components/link_footer.js
@@ -1,36 +1,71 @@
+import { connect } from 'react-redux';
 import React from 'react';
 import PropTypes from 'prop-types';
-import { FormattedMessage } from 'react-intl';
+import { FormattedMessage, defineMessages, injectIntl } from 'react-intl';
 import { Link } from 'react-router-dom';
 import { invitesEnabled, version, repository, source_url } from 'flavours/glitch/util/initial_state';
 import { signOutLink } from 'flavours/glitch/util/backend_links';
+import { logOut } from 'flavours/glitch/util/log_out';
+import { openModal } from 'flavours/glitch/actions/modal';
 
-const LinkFooter = () => (
-  <div className='getting-started__footer'>
-    <ul>
-      {invitesEnabled && <li><a href='/invites' target='_blank'><FormattedMessage id='getting_started.invite' defaultMessage='Invite people' /></a> · </li>}
-      <li><a href='/auth/edit'><FormattedMessage id='getting_started.security' defaultMessage='Security' /></a> · </li>
-      <li><a href='/about/more' target='_blank'><FormattedMessage id='navigation_bar.info' defaultMessage='About this server' /></a> · </li>
-      <li><a href='https://joinmastodon.org/apps' target='_blank'><FormattedMessage id='navigation_bar.apps' defaultMessage='Mobile apps' /></a> · </li>
-      <li><a href='/terms' target='_blank'><FormattedMessage id='getting_started.terms' defaultMessage='Terms of service' /></a> · </li>
-      <li><a href='/settings/applications' target='_blank'><FormattedMessage id='getting_started.developers' defaultMessage='Developers' /></a> · </li>
-      <li><a href='https://docs.joinmastodon.org' target='_blank'><FormattedMessage id='getting_started.documentation' defaultMessage='Documentation' /></a> · </li>
-      <li><a href={signOutLink} data-method='delete'><FormattedMessage id='navigation_bar.logout' defaultMessage='Logout' /></a></li>
-    </ul>
-
-    <p>
-      <FormattedMessage
-        id='getting_started.open_source_notice'
-        defaultMessage='Glitchsoc is open source software, a friendly fork of {Mastodon}. You can contribute or report issues on GitHub at {github}.'
-        values={{
-          github: <span><a href='https://github.com/glitch-soc/mastodon' rel='noopener' target='_blank'>glitch-soc/mastodon</a> (v{version})</span>,
-          Mastodon: <a href='https://github.com/tootsuite/mastodon' rel='noopener' target='_blank'>Mastodon</a> }}
-      />
-    </p>
-  </div>
-);
-
-LinkFooter.propTypes = {
-};
+const messages = defineMessages({
+  logoutMessage: { id: 'confirmations.logout.message', defaultMessage: 'Are you sure you want to log out?' },
+  logoutConfirm: { id: 'confirmations.logout.confirm', defaultMessage: 'Log out' },
+});
+
+const mapDispatchToProps = (dispatch, { intl }) => ({
+  onLogout () {
+    dispatch(openModal('CONFIRM', {
+      message: intl.formatMessage(messages.logoutMessage),
+      confirm: intl.formatMessage(messages.logoutConfirm),
+      onConfirm: () => logOut(),
+    }));
+  },
+});
+
+export default @injectIntl
+@connect(null, mapDispatchToProps)
+class LinkFooter extends React.PureComponent {
+
+  static propTypes = {
+    onLogout: PropTypes.func.isRequired,
+    intl: PropTypes.object.isRequired,
+  };
+
+  handleLogoutClick = e => {
+    e.preventDefault();
+    e.stopPropagation();
 
-export default LinkFooter;
+    this.props.onLogout();
+ 
+    return false;
+  }
+
+  render () {
+    return (
+      <div className='getting-started__footer'>
+        <ul>
+          {invitesEnabled && <li><a href='/invites' target='_blank'><FormattedMessage id='getting_started.invite' defaultMessage='Invite people' /></a> · </li>}
+          <li><a href='/auth/edit'><FormattedMessage id='getting_started.security' defaultMessage='Security' /></a> · </li>
+          <li><a href='/about/more' target='_blank'><FormattedMessage id='navigation_bar.info' defaultMessage='About this server' /></a> · </li>
+          <li><a href='https://joinmastodon.org/apps' target='_blank'><FormattedMessage id='navigation_bar.apps' defaultMessage='Mobile apps' /></a> · </li>
+          <li><a href='/terms' target='_blank'><FormattedMessage id='getting_started.terms' defaultMessage='Terms of service' /></a> · </li>
+          <li><a href='/settings/applications' target='_blank'><FormattedMessage id='getting_started.developers' defaultMessage='Developers' /></a> · </li>
+          <li><a href='https://docs.joinmastodon.org' target='_blank'><FormattedMessage id='getting_started.documentation' defaultMessage='Documentation' /></a> · </li>
+          <li><a href={signOutLink} onClick={this.handleLogoutClick}><FormattedMessage id='navigation_bar.logout' defaultMessage='Logout' /></a></li>
+        </ul>
+
+        <p>
+          <FormattedMessage
+            id='getting_started.open_source_notice'
+            defaultMessage='Glitchsoc is open source software, a friendly fork of {Mastodon}. You can contribute or report issues on GitHub at {github}.'
+            values={{
+              github: <span><a href='https://github.com/glitch-soc/mastodon' rel='noopener' target='_blank'>glitch-soc/mastodon</a> (v{version})</span>,
+              Mastodon: <a href='https://github.com/tootsuite/mastodon' rel='noopener' target='_blank'>Mastodon</a> }}
+          />
+        </p>
+      </div>
+    );
+  }
+
+};
diff --git a/app/javascript/flavours/glitch/features/ui/containers/notifications_container.js b/app/javascript/flavours/glitch/features/ui/containers/notifications_container.js
index 283aa2373..82278a3be 100644
--- a/app/javascript/flavours/glitch/features/ui/containers/notifications_container.js
+++ b/app/javascript/flavours/glitch/features/ui/containers/notifications_container.js
@@ -11,7 +11,7 @@ const mapStateToProps = (state, { intl }) => {
     const value = notification[key];
 
     if (typeof value === 'object') {
-      notification[key] = intl.formatMessage(value);
+      notification[key] = intl.formatMessage(value, notification[`${key}_values`]);
     }
   }));
 
diff --git a/app/javascript/flavours/glitch/features/ui/index.js b/app/javascript/flavours/glitch/features/ui/index.js
index dbfaf1220..33625581d 100644
--- a/app/javascript/flavours/glitch/features/ui/index.js
+++ b/app/javascript/flavours/glitch/features/ui/index.js
@@ -138,14 +138,24 @@ class SwitchingColumnsArea extends React.PureComponent {
     window.removeEventListener('resize', this.handleResize);
   }
 
-  handleResize = debounce(() => {
+  handleLayoutChange = debounce(() => {
     // The cached heights are no longer accurate, invalidate
     this.props.onLayoutChange();
-
-    this.setState({ mobile: isMobile(window.innerWidth, this.props.layout) });
   }, 500, {
     trailing: true,
-  });
+  })
+
+  handleResize = () => {
+    const mobile = isMobile(window.innerWidth, this.props.layout);
+
+    if (mobile !== this.state.mobile) {
+      this.handleLayoutChange.cancel();
+      this.props.onLayoutChange();
+      this.setState({ mobile });
+    } else {
+      this.handleLayoutChange();
+    }
+  }
 
   setRef = c => {
     this.node = c.getWrappedInstance();
diff --git a/app/javascript/flavours/glitch/features/video/index.js b/app/javascript/flavours/glitch/features/video/index.js
index 6d5162519..24368bef9 100644
--- a/app/javascript/flavours/glitch/features/video/index.js
+++ b/app/javascript/flavours/glitch/features/video/index.js
@@ -20,7 +20,7 @@ const messages = defineMessages({
   exit_fullscreen: { id: 'video.exit_fullscreen', defaultMessage: 'Exit full screen' },
 });
 
-const formatTime = secondsNum => {
+export const formatTime = secondsNum => {
   let hours   = Math.floor(secondsNum / 3600);
   let minutes = Math.floor((secondsNum - (hours * 3600)) / 60);
   let seconds = secondsNum - (hours * 3600) - (minutes * 60);
diff --git a/app/javascript/flavours/glitch/reducers/alerts.js b/app/javascript/flavours/glitch/reducers/alerts.js
index 50f8d30f7..ee3d54ab0 100644
--- a/app/javascript/flavours/glitch/reducers/alerts.js
+++ b/app/javascript/flavours/glitch/reducers/alerts.js
@@ -14,6 +14,7 @@ export default function alerts(state = initialState, action) {
       key: state.size > 0 ? state.last().get('key') + 1 : 0,
       title: action.title,
       message: action.message,
+      message_values: action.message_values,
     }));
   case ALERT_DISMISS:
     return state.filterNot(item => item.get('key') === action.alert.key);
diff --git a/app/javascript/flavours/glitch/selectors/index.js b/app/javascript/flavours/glitch/selectors/index.js
index b414cd5e5..8ceb71d03 100644
--- a/app/javascript/flavours/glitch/selectors/index.js
+++ b/app/javascript/flavours/glitch/selectors/index.js
@@ -157,6 +157,7 @@ export const getAlerts = createSelector([getAlertsBase], (base) => {
   base.forEach(item => {
     arr.push({
       message: item.get('message'),
+      message_values: item.get('message_values'),
       title: item.get('title'),
       key: item.get('key'),
       dismissAfter: 5000,
diff --git a/app/javascript/flavours/glitch/styles/components/media.scss b/app/javascript/flavours/glitch/styles/components/media.scss
index 39ffcae9d..6dee7725c 100644
--- a/app/javascript/flavours/glitch/styles/components/media.scss
+++ b/app/javascript/flavours/glitch/styles/components/media.scss
@@ -333,15 +333,63 @@
 
 }
 
+.audio-player {
+  box-sizing: border-box;
+  position: relative;
+  background: darken($ui-base-color, 8%);
+  border-radius: 4px;
+  padding-bottom: 44px;
+
+  &.editable {
+    border-radius: 0;
+    height: 100%;
+  }
+
+  &__waveform {
+    padding: 15px 0;
+    position: relative;
+    overflow: hidden;
+
+    &::before {
+      content: "";
+      display: block;
+      position: absolute;
+      border-top: 1px solid lighten($ui-base-color, 4%);
+      width: 100%;
+      height: 0;
+      left: 0;
+      top: calc(50% + 1px);
+    }
+  }
+
+  &__progress-placeholder {
+    background-color: rgba(lighten($ui-highlight-color, 8%), 0.5);
+  }
+
+  &__wave-placeholder {
+    background-color: lighten($ui-base-color, 16%);
+  }
+
+  .video-player__controls {
+    padding: 0 15px;
+    padding-top: 10px;
+    background: darken($ui-base-color, 8%);
+    border-top: 1px solid lighten($ui-base-color, 4%);
+    border-radius: 0 0 4px 4px;
+  }
+}
+
 .video-player {
   overflow: hidden;
   position: relative;
   background: $base-shadow-color;
   max-width: 100%;
   border-radius: 4px;
+  box-sizing: border-box;
 
   &.editable {
     border-radius: 0;
+    height: 100% !important;
   }
 
   &:focus {
diff --git a/app/javascript/flavours/glitch/styles/components/single_column.scss b/app/javascript/flavours/glitch/styles/components/single_column.scss
index 83c5d351b..d22cd4a8b 100644
--- a/app/javascript/flavours/glitch/styles/components/single_column.scss
+++ b/app/javascript/flavours/glitch/styles/components/single_column.scss
@@ -107,7 +107,8 @@
       padding: 15px;
 
       .media-gallery,
-      .video-player {
+      .video-player,
+      .audio-player {
         margin-top: 15px;
       }
     }
@@ -131,7 +132,8 @@
 
       .media-gallery,
       &__action-bar,
-      .video-player {
+      .video-player,
+      .audio-player {
         margin-top: 10px;
       }
     }
diff --git a/app/javascript/flavours/glitch/styles/components/status.scss b/app/javascript/flavours/glitch/styles/components/status.scss
index 40db7b3cb..2c7c1e8aa 100644
--- a/app/javascript/flavours/glitch/styles/components/status.scss
+++ b/app/javascript/flavours/glitch/styles/components/status.scss
@@ -263,7 +263,8 @@
   opacity: 1;
   animation: fade 150ms linear;
 
-  .video-player {
+  .video-player,
+  .audio-player {
     margin-top: 8px;
   }
 
@@ -453,7 +454,8 @@
       white-space: normal;
     }
 
-    .video-player {
+    .video-player,
+    .audio-player {
       margin-top: 8px;
       max-width: 250px;
     }
@@ -561,7 +563,8 @@
     }
   }
 
-  .video-player {
+  .video-player,
+  .audio-player {
     margin-top: 8px;
   }
 }
diff --git a/app/javascript/flavours/glitch/styles/mastodon-light/diff.scss b/app/javascript/flavours/glitch/styles/mastodon-light/diff.scss
index 35a8ce7a3..4c2b76a21 100644
--- a/app/javascript/flavours/glitch/styles/mastodon-light/diff.scss
+++ b/app/javascript/flavours/glitch/styles/mastodon-light/diff.scss
@@ -372,3 +372,10 @@
 .directory__tag > div {
   box-shadow: none;
 }
+
+.audio-player .video-player__controls button,
+.audio-player .video-player__time-sep,
+.audio-player .video-player__time-current,
+.audio-player .video-player__time-total {
+  color: $primary-text-color;
+}
diff --git a/app/javascript/flavours/glitch/util/async-components.js b/app/javascript/flavours/glitch/util/async-components.js
index 8f2e4c6e4..5050f0ff7 100644
--- a/app/javascript/flavours/glitch/util/async-components.js
+++ b/app/javascript/flavours/glitch/util/async-components.js
@@ -138,6 +138,10 @@ export function Video () {
   return import(/* webpackChunkName: "flavours/glitch/async/video" */'flavours/glitch/features/video');
 }
 
+export function Audio () {
+  return import(/* webpackChunkName: "features/glitch/async/audio" */'flavours/glitch/features/audio');
+}
+
 export function EmbedModal () {
   return import(/* webpackChunkName: "flavours/glitch/async/embed_modal" */'flavours/glitch/features/ui/components/embed_modal');
 }
diff --git a/app/javascript/flavours/glitch/util/log_out.js b/app/javascript/flavours/glitch/util/log_out.js
new file mode 100644
index 000000000..8e1659293
--- /dev/null
+++ b/app/javascript/flavours/glitch/util/log_out.js
@@ -0,0 +1,34 @@
+import Rails from 'rails-ujs';
+import { signOutLink } from 'flavours/glitch/util/backend_links';
+
+export const logOut = () => {
+  const form = document.createElement('form');
+
+  const methodInput = document.createElement('input');
+  methodInput.setAttribute('name', '_method');
+  methodInput.setAttribute('value', 'delete');
+  methodInput.setAttribute('type', 'hidden');
+  form.appendChild(methodInput);
+
+  const csrfToken = Rails.csrfToken();
+  const csrfParam = Rails.csrfParam();
+
+  if (csrfParam && csrfToken) {
+    const csrfInput = document.createElement('input');
+    csrfInput.setAttribute('name', csrfParam);
+    csrfInput.setAttribute('value', csrfToken);
+    csrfInput.setAttribute('type', 'hidden');
+    form.appendChild(csrfInput);
+  }
+
+  const submitButton = document.createElement('input');
+  submitButton.setAttribute('type', 'submit');
+  form.appendChild(submitButton);
+
+  form.method = 'post';
+  form.action = signOutLink;
+  form.style.display = 'none';
+
+  document.body.appendChild(form);
+  submitButton.click();
+};
diff --git a/app/javascript/mastodon/actions/alerts.js b/app/javascript/mastodon/actions/alerts.js
index ef2500e7b..cd36d8007 100644
--- a/app/javascript/mastodon/actions/alerts.js
+++ b/app/javascript/mastodon/actions/alerts.js
@@ -3,6 +3,8 @@ import { defineMessages } from 'react-intl';
 const messages = defineMessages({
   unexpectedTitle: { id: 'alert.unexpected.title', defaultMessage: 'Oops!' },
   unexpectedMessage: { id: 'alert.unexpected.message', defaultMessage: 'An unexpected error occurred.' },
+  rateLimitedTitle: { id: 'alert.rate_limited.title', defaultMessage: 'Rate limited' },
+  rateLimitedMessage: { id: 'alert.rate_limited.message', defaultMessage: 'Please retry after {retry_time, time, medium}.' },
 });
 
 export const ALERT_SHOW    = 'ALERT_SHOW';
@@ -23,23 +25,29 @@ export function clearAlert() {
   };
 };
 
-export function showAlert(title = messages.unexpectedTitle, message = messages.unexpectedMessage) {
+export function showAlert(title = messages.unexpectedTitle, message = messages.unexpectedMessage, message_values = undefined) {
   return {
     type: ALERT_SHOW,
     title,
     message,
+    message_values,
   };
 };
 
 export function showAlertForError(error) {
   if (error.response) {
-    const { data, status, statusText } = error.response;
+    const { data, status, statusText, headers } = error.response;
 
     if (status === 404 || status === 410) {
       // Skip these errors as they are reflected in the UI
       return { type: ALERT_NOOP };
     }
 
+    if (status === 429 && headers['x-ratelimit-reset']) {
+      const reset_date = new Date(headers['x-ratelimit-reset']);
+      return showAlert(messages.rateLimitedTitle, messages.rateLimitedMessage, { 'retry_time': reset_date });
+    }
+
     let message = statusText;
     let title   = `${status}`;
 
diff --git a/app/javascript/mastodon/actions/compose.js b/app/javascript/mastodon/actions/compose.js
index c27c53df0..061a36bb8 100644
--- a/app/javascript/mastodon/actions/compose.js
+++ b/app/javascript/mastodon/actions/compose.js
@@ -356,6 +356,8 @@ const fetchComposeSuggestionsTags = throttle((dispatch, getState, token) => {
     cancelFetchComposeSuggestionsTags();
   }
 
+  dispatch(updateSuggestionTags(token));
+
   api(getState).get('/api/v2/search', {
     cancelToken: new CancelToken(cancel => {
       cancelFetchComposeSuggestionsTags = cancel;
diff --git a/app/javascript/mastodon/components/autosuggest_hashtag.js b/app/javascript/mastodon/components/autosuggest_hashtag.js
index eabb8b178..e2f4e320d 100644
--- a/app/javascript/mastodon/components/autosuggest_hashtag.js
+++ b/app/javascript/mastodon/components/autosuggest_hashtag.js
@@ -9,18 +9,18 @@ export default class AutosuggestHashtag extends React.PureComponent {
     tag: PropTypes.shape({
       name: PropTypes.string.isRequired,
       url: PropTypes.string,
-      history: PropTypes.array.isRequired,
+      history: PropTypes.array,
     }).isRequired,
   };
 
   render () {
     const { tag } = this.props;
-    const weeklyUses = shortNumberFormat(tag.history.reduce((total, day) => total + (day.uses * 1), 0));
+    const weeklyUses = tag.history && shortNumberFormat(tag.history.reduce((total, day) => total + (day.uses * 1), 0));
 
     return (
       <div className='autosuggest-hashtag'>
         <div className='autosuggest-hashtag__name'>#<strong>{tag.name}</strong></div>
-        <div className='autosuggest-hashtag__uses'><FormattedMessage id='autosuggest_hashtag.per_week' defaultMessage='{count} per week' values={{ count: weeklyUses }} /></div>
+        {tag.history !== undefined && <div className='autosuggest-hashtag__uses'><FormattedMessage id='autosuggest_hashtag.per_week' defaultMessage='{count} per week' values={{ count: weeklyUses }} /></div>}
       </div>
     );
   }
diff --git a/app/javascript/mastodon/components/column_back_button.js b/app/javascript/mastodon/components/column_back_button.js
index cc0e5c07c..d97622705 100644
--- a/app/javascript/mastodon/components/column_back_button.js
+++ b/app/javascript/mastodon/components/column_back_button.js
@@ -35,7 +35,19 @@ export default class ColumnBackButton extends React.PureComponent {
     if (multiColumn) {
       return component;
     } else {
-      return createPortal(component, document.getElementById('tabs-bar__portal'));
+      // The portal container and the component may be rendered to the DOM in
+      // the same React render pass, so the container might not be available at
+      // the time `render()` is called.
+      const container = document.getElementById('tabs-bar__portal');
+      if (container === null) {
+        // The container wasn't available, force a re-render so that the
+        // component can eventually be inserted in the container and not scroll
+        // with the rest of the area.
+        this.forceUpdate();
+        return component;
+      } else {
+        return createPortal(component, container);
+      }
     }
   }
 
diff --git a/app/javascript/mastodon/components/column_header.js b/app/javascript/mastodon/components/column_header.js
index 89c5fe723..8a26742b5 100644
--- a/app/javascript/mastodon/components/column_header.js
+++ b/app/javascript/mastodon/components/column_header.js
@@ -178,7 +178,19 @@ class ColumnHeader extends React.PureComponent {
     if (multiColumn || placeholder) {
       return component;
     } else {
-      return createPortal(component, document.getElementById('tabs-bar__portal'));
+      // The portal container and the component may be rendered to the DOM in
+      // the same React render pass, so the container might not be available at
+      // the time `render()` is called.
+      const container = document.getElementById('tabs-bar__portal');
+      if (container === null) {
+        // The container wasn't available, force a re-render so that the
+        // component can eventually be inserted in the container and not scroll
+        // with the rest of the area.
+        this.forceUpdate();
+        return component;
+      } else {
+        return createPortal(component, container);
+      }
     }
   }
 
diff --git a/app/javascript/mastodon/components/status.js b/app/javascript/mastodon/components/status.js
index 735cab007..b5606aca5 100644
--- a/app/javascript/mastodon/components/status.js
+++ b/app/javascript/mastodon/components/status.js
@@ -12,7 +12,7 @@ import AttachmentList from './attachment_list';
 import Card from '../features/status/components/card';
 import { injectIntl, FormattedMessage } from 'react-intl';
 import ImmutablePureComponent from 'react-immutable-pure-component';
-import { MediaGallery, Video } from '../features/ui/util/async-components';
+import { MediaGallery, Video, Audio } from '../features/ui/util/async-components';
 import { HotKeys } from 'react-hotkeys';
 import classNames from 'classnames';
 import Icon from 'mastodon/components/icon';
@@ -199,11 +199,15 @@ class Status extends ImmutablePureComponent {
   };
 
   renderLoadingMediaGallery () {
-    return <div className='media_gallery' style={{ height: '110px' }} />;
+    return <div className='media-gallery' style={{ height: '110px' }} />;
   }
 
   renderLoadingVideoPlayer () {
-    return <div className='media-spoiler-video' style={{ height: '110px' }} />;
+    return <div className='video-player' style={{ height: '110px' }} />;
+  }
+
+  renderLoadingAudioPlayer () {
+    return <div className='audio-player' style={{ height: '110px' }} />;
   }
 
   handleOpenVideo = (media, startTime) => {
@@ -348,7 +352,23 @@ class Status extends ImmutablePureComponent {
             media={status.get('media_attachments')}
           />
         );
-      } else if (['video', 'audio'].includes(status.getIn(['media_attachments', 0, 'type']))) {
+      } else if (status.getIn(['media_attachments', 0, 'type']) === 'audio') {
+        const attachment = status.getIn(['media_attachments', 0]);
+
+        media = (
+          <Bundle fetchComponent={Audio} loading={this.renderLoadingAudioPlayer} >
+            {Component => (
+              <Component
+                src={attachment.get('url')}
+                alt={attachment.get('description')}
+                duration={attachment.getIn(['meta', 'original', 'duration'], 0)}
+                peaks={[0]}
+                height={70}
+              />
+            )}
+          </Bundle>
+        );
+      } else if (status.getIn(['media_attachments', 0, 'type']) === 'video') {
         const attachment = status.getIn(['media_attachments', 0]);
 
         media = (
diff --git a/app/javascript/mastodon/components/status_content.js b/app/javascript/mastodon/components/status_content.js
index 6aa0bfcc2..c171e7a66 100644
--- a/app/javascript/mastodon/components/status_content.js
+++ b/app/javascript/mastodon/components/status_content.js
@@ -230,7 +230,7 @@ export default class StatusContent extends React.PureComponent {
       );
     } else if (this.props.onClick) {
       const output = [
-        <div className={classNames} ref={this.setRef} tabIndex='0' style={directionStyle} onMouseDown={this.handleMouseDown} onMouseUp={this.handleMouseUp}>
+        <div className={classNames} ref={this.setRef} tabIndex='0' style={directionStyle} onMouseDown={this.handleMouseDown} onMouseUp={this.handleMouseUp} key='status-content'>
           <div className='status__content__text status__content__text--visible' style={directionStyle} dangerouslySetInnerHTML={content} lang={status.get('language')} />
 
           {!!status.get('poll') && <PollContainer pollId={status.get('poll')} />}
diff --git a/app/javascript/mastodon/containers/media_container.js b/app/javascript/mastodon/containers/media_container.js
index 8fddb6f54..db340032a 100644
--- a/app/javascript/mastodon/containers/media_container.js
+++ b/app/javascript/mastodon/containers/media_container.js
@@ -8,6 +8,7 @@ import Video from '../features/video';
 import Card from '../features/status/components/card';
 import Poll from 'mastodon/components/poll';
 import Hashtag from 'mastodon/components/hashtag';
+import Audio from 'mastodon/features/audio';
 import ModalRoot from '../components/modal_root';
 import { getScrollbarWidth } from '../features/ui/components/modal_root';
 import MediaModal from '../features/ui/components/media_modal';
@@ -16,7 +17,7 @@ import { List as ImmutableList, fromJS } from 'immutable';
 const { localeData, messages } = getLocale();
 addLocaleData(localeData);
 
-const MEDIA_COMPONENTS = { MediaGallery, Video, Card, Poll, Hashtag };
+const MEDIA_COMPONENTS = { MediaGallery, Video, Card, Poll, Hashtag, Audio };
 
 export default class MediaContainer extends PureComponent {
 
diff --git a/app/javascript/mastodon/features/audio/index.js b/app/javascript/mastodon/features/audio/index.js
new file mode 100644
index 000000000..95e5675f3
--- /dev/null
+++ b/app/javascript/mastodon/features/audio/index.js
@@ -0,0 +1,226 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+import WaveSurfer from 'wavesurfer.js';
+import { defineMessages, injectIntl } from 'react-intl';
+import { formatTime } from 'mastodon/features/video';
+import Icon from 'mastodon/components/icon';
+import classNames from 'classnames';
+import { throttle } from 'lodash';
+
+const messages = defineMessages({
+  play: { id: 'video.play', defaultMessage: 'Play' },
+  pause: { id: 'video.pause', defaultMessage: 'Pause' },
+  mute: { id: 'video.mute', defaultMessage: 'Mute sound' },
+  unmute: { id: 'video.unmute', defaultMessage: 'Unmute sound' },
+});
+
+export default @injectIntl
+class Audio extends React.PureComponent {
+
+  static propTypes = {
+    src: PropTypes.string.isRequired,
+    alt: PropTypes.string,
+    duration: PropTypes.number,
+    peaks: PropTypes.arrayOf(PropTypes.number),
+    height: PropTypes.number,
+    preload: PropTypes.bool,
+    editable: PropTypes.bool,
+    intl: PropTypes.object.isRequired,
+  };
+
+  state = {
+    currentTime: 0,
+    duration: null,
+    paused: true,
+    muted: false,
+    volume: 0.5,
+  };
+
+  // hard coded in components.scss
+  // any way to get ::before values programatically?
+
+  volWidth = 50;
+
+  volOffset = 70;
+
+  volHandleOffset = v => {
+    const offset = v * this.volWidth + this.volOffset;
+    return (offset > 110) ? 110 : offset;
+  }
+
+  setVolumeRef = c => {
+    this.volume = c;
+  }
+
+  setWaveformRef = c => {
+    this.waveform = c;
+  }
+
+  componentDidMount () {
+    if (this.waveform) {
+      this._updateWaveform();
+    }
+  }
+
+  componentDidUpdate (prevProps) {
+    if (this.waveform && prevProps.src !== this.props.src) {
+      this._updateWaveform();
+    }
+  }
+
+  componentWillUnmount () {
+    if (this.wavesurfer) {
+      this.wavesurfer.destroy();
+      this.wavesurfer = null;
+    }
+  }
+
+  _updateWaveform () {
+    const { src, height, duration, peaks, preload } = this.props;
+
+    const progressColor = window.getComputedStyle(document.querySelector('.audio-player__progress-placeholder')).getPropertyValue('background-color');
+    const waveColor     = window.getComputedStyle(document.querySelector('.audio-player__wave-placeholder')).getPropertyValue('background-color');
+
+    if (this.wavesurfer) {
+      this.wavesurfer.destroy();
+      this.loaded = false;
+    }
+
+    const wavesurfer = WaveSurfer.create({
+      container: this.waveform,
+      height,
+      barWidth: 3,
+      cursorWidth: 0,
+      progressColor,
+      waveColor,
+      backend: 'MediaElement',
+      interact: preload,
+    });
+
+    wavesurfer.setVolume(this.state.volume);
+
+    if (preload) {
+      wavesurfer.load(src);
+      this.loaded = true;
+    } else {
+      wavesurfer.load(src, peaks, 'none', duration);
+      this.loaded = false;
+    }
+
+    wavesurfer.on('ready', () => this.setState({ duration: Math.floor(wavesurfer.getDuration()) }));
+    wavesurfer.on('audioprocess', () => this.setState({ currentTime: Math.floor(wavesurfer.getCurrentTime()) }));
+    wavesurfer.on('pause', () => this.setState({ paused: true }));
+    wavesurfer.on('play', () => this.setState({ paused: false }));
+    wavesurfer.on('volume', volume => this.setState({ volume }));
+    wavesurfer.on('mute', muted => this.setState({ muted }));
+
+    this.wavesurfer = wavesurfer;
+  }
+
+  togglePlay = () => {
+    if (this.state.paused) {
+      if (!this.props.preload && !this.loaded) {
+        this.wavesurfer.createBackend();
+        this.wavesurfer.createPeakCache();
+        this.wavesurfer.load(this.props.src);
+        this.wavesurfer.toggleInteraction();
+        this.loaded = true;
+      }
+
+      this.wavesurfer.play();
+      this.setState({ paused: false });
+    } else {
+      this.wavesurfer.pause();
+      this.setState({ paused: true });
+    }
+  }
+
+  toggleMute = () => {
+    this.wavesurfer.setMute(!this.state.muted);
+  }
+
+  handleVolumeMouseDown = e => {
+    document.addEventListener('mousemove', this.handleMouseVolSlide, true);
+    document.addEventListener('mouseup', this.handleVolumeMouseUp, true);
+    document.addEventListener('touchmove', this.handleMouseVolSlide, true);
+    document.addEventListener('touchend', this.handleVolumeMouseUp, true);
+
+    this.handleMouseVolSlide(e);
+
+    e.preventDefault();
+    e.stopPropagation();
+  }
+
+  handleVolumeMouseUp = () => {
+    document.removeEventListener('mousemove', this.handleMouseVolSlide, true);
+    document.removeEventListener('mouseup', this.handleVolumeMouseUp, true);
+    document.removeEventListener('touchmove', this.handleMouseVolSlide, true);
+    document.removeEventListener('touchend', this.handleVolumeMouseUp, true);
+  }
+
+  handleMouseVolSlide = throttle(e => {
+    const rect = this.volume.getBoundingClientRect();
+    const x    = (e.clientX - rect.left) / this.volWidth; // x position within the element.
+
+    if(!isNaN(x)) {
+      let slideamt = x;
+
+      if (x > 1) {
+        slideamt = 1;
+      } else if(x < 0) {
+        slideamt = 0;
+      }
+
+      this.wavesurfer.setVolume(slideamt);
+    }
+  }, 60);
+
+  render () {
+    const { height, intl, alt, editable } = this.props;
+    const { paused, muted, volume, currentTime } = this.state;
+
+    const volumeWidth     = muted ? 0 : volume * this.volWidth;
+    const volumeHandleLoc = muted ? this.volHandleOffset(0) : this.volHandleOffset(volume);
+
+    return (
+      <div className={classNames('audio-player', { editable })}>
+        <div className='audio-player__progress-placeholder' style={{ display: 'none' }} />
+        <div className='audio-player__wave-placeholder' style={{ display: 'none' }} />
+
+        <div
+          className='audio-player__waveform'
+          aria-label={alt}
+          title={alt}
+          style={{ height }}
+          ref={this.setWaveformRef}
+        />
+
+        <div className='video-player__controls active'>
+          <div className='video-player__buttons-bar'>
+            <div className='video-player__buttons left'>
+              <button type='button' aria-label={intl.formatMessage(paused ? messages.play : messages.pause)} onClick={this.togglePlay}><Icon id={paused ? 'play' : 'pause'} fixedWidth /></button>
+              <button type='button' aria-label={intl.formatMessage(muted ? messages.unmute : messages.mute)} onClick={this.toggleMute}><Icon id={muted ? 'volume-off' : 'volume-up'} fixedWidth /></button>
+
+              <div className='video-player__volume' onMouseDown={this.handleVolumeMouseDown} ref={this.setVolumeRef}>
+                <div className='video-player__volume__current' style={{ width: `${volumeWidth}px` }} />
+
+                <span
+                  className={classNames('video-player__volume__handle')}
+                  tabIndex='0'
+                  style={{ left: `${volumeHandleLoc}px` }}
+                />
+              </div>
+
+              <span>
+                <span className='video-player__time-current'>{formatTime(currentTime)}</span>
+                <span className='video-player__time-sep'>/</span>
+                <span className='video-player__time-total'>{formatTime(this.state.duration || Math.floor(this.props.duration))}</span>
+              </span>
+            </div>
+          </div>
+        </div>
+      </div>
+    );
+  }
+
+}
diff --git a/app/javascript/mastodon/features/compose/components/action_bar.js b/app/javascript/mastodon/features/compose/components/action_bar.js
index d0303dbfb..dd2632796 100644
--- a/app/javascript/mastodon/features/compose/components/action_bar.js
+++ b/app/javascript/mastodon/features/compose/components/action_bar.js
@@ -23,9 +23,14 @@ class ActionBar extends React.PureComponent {
 
   static propTypes = {
     account: ImmutablePropTypes.map.isRequired,
+    onLogout: PropTypes.func.isRequired,
     intl: PropTypes.object.isRequired,
   };
 
+  handleLogout = () => {
+    this.props.onLogout();
+  }
+
   render () {
     const { intl } = this.props;
 
@@ -44,7 +49,7 @@ class ActionBar extends React.PureComponent {
     menu.push({ text: intl.formatMessage(messages.domain_blocks), to: '/domain_blocks' });
     menu.push({ text: intl.formatMessage(messages.filters), href: '/filters' });
     menu.push(null);
-    menu.push({ text: intl.formatMessage(messages.logout), href: '/auth/sign_out', target: null, method: 'delete' });
+    menu.push({ text: intl.formatMessage(messages.logout), action: this.handleLogout });
 
     return (
       <div className='compose__action-bar'>
diff --git a/app/javascript/mastodon/features/compose/components/navigation_bar.js b/app/javascript/mastodon/features/compose/components/navigation_bar.js
index d8d49cb95..840d0a3da 100644
--- a/app/javascript/mastodon/features/compose/components/navigation_bar.js
+++ b/app/javascript/mastodon/features/compose/components/navigation_bar.js
@@ -12,6 +12,7 @@ export default class NavigationBar extends ImmutablePureComponent {
 
   static propTypes = {
     account: ImmutablePropTypes.map.isRequired,
+    onLogout: PropTypes.func.isRequired,
     onClose: PropTypes.func,
   };
 
@@ -33,7 +34,7 @@ export default class NavigationBar extends ImmutablePureComponent {
 
         <div className='navigation-bar__actions'>
           <IconButton className='close' title='' icon='close' onClick={this.props.onClose} />
-          <ActionBar account={this.props.account} />
+          <ActionBar account={this.props.account} onLogout={this.props.onLogout} />
         </div>
       </div>
     );
diff --git a/app/javascript/mastodon/features/compose/containers/navigation_container.js b/app/javascript/mastodon/features/compose/containers/navigation_container.js
index eb9f3ea45..8606a642e 100644
--- a/app/javascript/mastodon/features/compose/containers/navigation_container.js
+++ b/app/javascript/mastodon/features/compose/containers/navigation_container.js
@@ -1,11 +1,29 @@
 import { connect }   from 'react-redux';
+import { defineMessages, injectIntl } from 'react-intl';
 import NavigationBar from '../components/navigation_bar';
+import { logOut } from 'mastodon/utils/log_out';
+import { openModal } from 'mastodon/actions/modal';
 import { me } from '../../../initial_state';
 
+const messages = defineMessages({
+  logoutMessage: { id: 'confirmations.logout.message', defaultMessage: 'Are you sure you want to log out?' },
+  logoutConfirm: { id: 'confirmations.logout.confirm', defaultMessage: 'Log out' },
+});
+
 const mapStateToProps = state => {
   return {
     account: state.getIn(['accounts', me]),
   };
 };
 
-export default connect(mapStateToProps)(NavigationBar);
+const mapDispatchToProps = (dispatch, { intl }) => ({
+  onLogout () {
+    dispatch(openModal('CONFIRM', {
+      message: intl.formatMessage(messages.logoutMessage),
+      confirm: intl.formatMessage(messages.logoutConfirm),
+      onConfirm: () => logOut(),
+    }));
+  },
+});
+
+export default injectIntl(connect(mapStateToProps, mapDispatchToProps)(NavigationBar));
diff --git a/app/javascript/mastodon/features/compose/index.js b/app/javascript/mastodon/features/compose/index.js
index 0731abcf4..e2de8b0e6 100644
--- a/app/javascript/mastodon/features/compose/index.js
+++ b/app/javascript/mastodon/features/compose/index.js
@@ -12,9 +12,11 @@ import Motion from '../ui/util/optional_motion';
 import spring from 'react-motion/lib/spring';
 import SearchResultsContainer from './containers/search_results_container';
 import { changeComposing } from '../../actions/compose';
+import { openModal } from 'mastodon/actions/modal';
 import elephantUIPlane from '../../../images/elephant_ui_plane.svg';
 import { mascot } from '../../initial_state';
 import Icon from 'mastodon/components/icon';
+import { logOut } from 'mastodon/utils/log_out';
 
 const messages = defineMessages({
   start: { id: 'getting_started.heading', defaultMessage: 'Getting started' },
@@ -25,6 +27,8 @@ const messages = defineMessages({
   preferences: { id: 'navigation_bar.preferences', defaultMessage: 'Preferences' },
   logout: { id: 'navigation_bar.logout', defaultMessage: 'Logout' },
   compose: { id: 'navigation_bar.compose', defaultMessage: 'Compose new toot' },
+  logoutMessage: { id: 'confirmations.logout.message', defaultMessage: 'Are you sure you want to log out?' },
+  logoutConfirm: { id: 'confirmations.logout.confirm', defaultMessage: 'Log out' },
 });
 
 const mapStateToProps = (state, ownProps) => ({
@@ -61,6 +65,21 @@ class Compose extends React.PureComponent {
     }
   }
 
+  handleLogoutClick = e => {
+    const { dispatch, intl } = this.props;
+
+    e.preventDefault();
+    e.stopPropagation();
+
+    dispatch(openModal('CONFIRM', {
+      message: intl.formatMessage(messages.logoutMessage),
+      confirm: intl.formatMessage(messages.logoutConfirm),
+      onConfirm: () => logOut(),
+    }));
+
+    return false;
+  }
+
   onFocus = () => {
     this.props.dispatch(changeComposing(true));
   }
@@ -92,7 +111,7 @@ class Compose extends React.PureComponent {
             <Link to='/timelines/public' className='drawer__tab' title={intl.formatMessage(messages.public)} aria-label={intl.formatMessage(messages.public)}><Icon id='globe' fixedWidth /></Link>
           )}
           <a href='/settings/preferences' className='drawer__tab' title={intl.formatMessage(messages.preferences)} aria-label={intl.formatMessage(messages.preferences)}><Icon id='cog' fixedWidth /></a>
-          <a href='/auth/sign_out' className='drawer__tab' data-method='delete' title={intl.formatMessage(messages.logout)} aria-label={intl.formatMessage(messages.logout)}><Icon id='sign-out' fixedWidth /></a>
+          <a href='/auth/sign_out' className='drawer__tab' title={intl.formatMessage(messages.logout)} aria-label={intl.formatMessage(messages.logout)} onClick={this.handleLogoutClick}><Icon id='sign-out' fixedWidth /></a>
         </nav>
       );
     }
diff --git a/app/javascript/mastodon/features/getting_started/components/trends.js b/app/javascript/mastodon/features/getting_started/components/trends.js
index 1dcacc8b3..3b9a3075f 100644
--- a/app/javascript/mastodon/features/getting_started/components/trends.js
+++ b/app/javascript/mastodon/features/getting_started/components/trends.js
@@ -3,6 +3,7 @@ import ImmutablePureComponent from 'react-immutable-pure-component';
 import PropTypes from 'prop-types';
 import ImmutablePropTypes from 'react-immutable-proptypes';
 import Hashtag from 'mastodon/components/hashtag';
+import { FormattedMessage } from 'react-intl';
 
 export default class Trends extends ImmutablePureComponent {
 
@@ -17,7 +18,7 @@ export default class Trends extends ImmutablePureComponent {
 
   componentDidMount () {
     this.props.fetchTrends();
-    this.refreshInterval = setInterval(() => this.props.fetchTrends(), 36000);
+    this.refreshInterval = setInterval(() => this.props.fetchTrends(), 900 * 1000);
   }
 
   componentWillUnmount () {
@@ -35,6 +36,8 @@ export default class Trends extends ImmutablePureComponent {
 
     return (
       <div className='getting-started__trends'>
+        <h4><FormattedMessage id='trends.trending_now' defaultMessage='Trending now' /></h4>
+
         {trends.take(3).map(hashtag => <Hashtag key={hashtag.get('name')} hashtag={hashtag} />)}
       </div>
     );
diff --git a/app/javascript/mastodon/features/status/components/detailed_status.js b/app/javascript/mastodon/features/status/components/detailed_status.js
index 4af157af1..e97f18f08 100644
--- a/app/javascript/mastodon/features/status/components/detailed_status.js
+++ b/app/javascript/mastodon/features/status/components/detailed_status.js
@@ -10,6 +10,7 @@ import { FormattedDate, FormattedNumber } from 'react-intl';
 import Card from './card';
 import ImmutablePureComponent from 'react-immutable-pure-component';
 import Video from '../../video';
+import Audio from '../../audio';
 import scheduleIdleTask from '../../ui/util/schedule_idle_task';
 import classNames from 'classnames';
 import Icon from 'mastodon/components/icon';
@@ -107,7 +108,19 @@ export default class DetailedStatus extends ImmutablePureComponent {
     }
 
     if (status.get('media_attachments').size > 0) {
-      if (['video', 'audio'].includes(status.getIn(['media_attachments', 0, 'type']))) {
+      if (status.getIn(['media_attachments', 0, 'type']) === 'audio') {
+        const attachment = status.getIn(['media_attachments', 0]);
+
+        media = (
+          <Audio
+            src={attachment.get('url')}
+            alt={attachment.get('description')}
+            duration={attachment.getIn(['meta', 'original', 'duration'], 0)}
+            height={110}
+            preload
+          />
+        );
+      } else if (status.getIn(['media_attachments', 0, 'type']) === 'video') {
         const attachment = status.getIn(['media_attachments', 0]);
 
         media = (
diff --git a/app/javascript/mastodon/features/ui/components/focal_point_modal.js b/app/javascript/mastodon/features/ui/components/focal_point_modal.js
index e0ef1a066..735e445e8 100644
--- a/app/javascript/mastodon/features/ui/components/focal_point_modal.js
+++ b/app/javascript/mastodon/features/ui/components/focal_point_modal.js
@@ -10,6 +10,7 @@ import { FormattedMessage, defineMessages, injectIntl } from 'react-intl';
 import IconButton from 'mastodon/components/icon_button';
 import Button from 'mastodon/components/button';
 import Video from 'mastodon/features/video';
+import Audio from 'mastodon/features/audio';
 import Textarea from 'react-textarea-autosize';
 import UploadProgress from 'mastodon/features/compose/components/upload_progress';
 import CharacterCounter from 'mastodon/features/compose/components/character_counter';
@@ -244,12 +245,23 @@ class FocalPointModal extends ImmutablePureComponent {
               </div>
             )}
 
-            {['audio', 'video'].includes(media.get('type')) && (
+            {media.get('type') === 'video' && (
               <Video
                 preview={media.get('preview_url')}
                 blurhash={media.get('blurhash')}
                 src={media.get('url')}
                 detailed
+                inline
+                editable
+              />
+            )}
+
+            {media.get('type') === 'audio' && (
+              <Audio
+                src={media.get('url')}
+                duration={media.getIn(['meta', 'original', 'duration'], 0)}
+                height={150}
+                preload
                 editable
               />
             )}
diff --git a/app/javascript/mastodon/features/ui/components/link_footer.js b/app/javascript/mastodon/features/ui/components/link_footer.js
index b481983dc..2b9bd3875 100644
--- a/app/javascript/mastodon/features/ui/components/link_footer.js
+++ b/app/javascript/mastodon/features/ui/components/link_footer.js
@@ -1,35 +1,72 @@
+import { connect } from 'react-redux';
 import React from 'react';
 import PropTypes from 'prop-types';
-import { FormattedMessage } from 'react-intl';
+import { FormattedMessage, defineMessages, injectIntl } from 'react-intl';
 import { Link } from 'react-router-dom';
 import { invitesEnabled, version, repository, source_url } from 'mastodon/initial_state';
+import { logOut } from 'mastodon/utils/log_out';
+import { openModal } from 'mastodon/actions/modal';
 
-const LinkFooter = ({ withHotkeys }) => (
-  <div className='getting-started__footer'>
-    <ul>
-      {invitesEnabled && <li><a href='/invites' target='_blank'><FormattedMessage id='getting_started.invite' defaultMessage='Invite people' /></a> · </li>}
-      {withHotkeys && <li><Link to='/keyboard-shortcuts'><FormattedMessage id='navigation_bar.keyboard_shortcuts' defaultMessage='Hotkeys' /></Link> · </li>}
-      <li><a href='/auth/edit'><FormattedMessage id='getting_started.security' defaultMessage='Security' /></a> · </li>
-      <li><a href='/about/more' target='_blank'><FormattedMessage id='navigation_bar.info' defaultMessage='About this server' /></a> · </li>
-      <li><a href='https://joinmastodon.org/apps' target='_blank'><FormattedMessage id='navigation_bar.apps' defaultMessage='Mobile apps' /></a> · </li>
-      <li><a href='/terms' target='_blank'><FormattedMessage id='getting_started.terms' defaultMessage='Terms of service' /></a> · </li>
-      <li><a href='/settings/applications' target='_blank'><FormattedMessage id='getting_started.developers' defaultMessage='Developers' /></a> · </li>
-      <li><a href='https://docs.joinmastodon.org' target='_blank'><FormattedMessage id='getting_started.documentation' defaultMessage='Documentation' /></a> · </li>
-      <li><a href='/auth/sign_out' data-method='delete'><FormattedMessage id='navigation_bar.logout' defaultMessage='Logout' /></a></li>
-    </ul>
-
-    <p>
-      <FormattedMessage
-        id='getting_started.open_source_notice'
-        defaultMessage='Mastodon is open source software. You can contribute or report issues on GitHub at {github}.'
-        values={{ github: <span><a href={source_url} rel='noopener' target='_blank'>{repository}</a> (v{version})</span> }}
-      />
-    </p>
-  </div>
-);
-
-LinkFooter.propTypes = {
-  withHotkeys: PropTypes.bool,
-};
+const messages = defineMessages({
+  logoutMessage: { id: 'confirmations.logout.message', defaultMessage: 'Are you sure you want to log out?' },
+  logoutConfirm: { id: 'confirmations.logout.confirm', defaultMessage: 'Log out' },
+});
+
+const mapDispatchToProps = (dispatch, { intl }) => ({
+  onLogout () {
+    dispatch(openModal('CONFIRM', {
+      message: intl.formatMessage(messages.logoutMessage),
+      confirm: intl.formatMessage(messages.logoutConfirm),
+      onConfirm: () => logOut(),
+    }));
+  },
+});
+
+export default @injectIntl
+@connect(null, mapDispatchToProps)
+class LinkFooter extends React.PureComponent {
+
+  static propTypes = {
+    withHotkeys: PropTypes.bool,
+    onLogout: PropTypes.func.isRequired,
+    intl: PropTypes.object.isRequired,
+  };
+
+  handleLogoutClick = e => {
+    e.preventDefault();
+    e.stopPropagation();
+
+    this.props.onLogout();
 
-export default LinkFooter;
+    return false;
+  }
+
+  render () {
+    const { withHotkeys } = this.props;
+
+    return (
+      <div className='getting-started__footer'>
+        <ul>
+          {invitesEnabled && <li><a href='/invites' target='_blank'><FormattedMessage id='getting_started.invite' defaultMessage='Invite people' /></a> · </li>}
+          {withHotkeys && <li><Link to='/keyboard-shortcuts'><FormattedMessage id='navigation_bar.keyboard_shortcuts' defaultMessage='Hotkeys' /></Link> · </li>}
+          <li><a href='/auth/edit'><FormattedMessage id='getting_started.security' defaultMessage='Security' /></a> · </li>
+          <li><a href='/about/more' target='_blank'><FormattedMessage id='navigation_bar.info' defaultMessage='About this server' /></a> · </li>
+          <li><a href='https://joinmastodon.org/apps' target='_blank'><FormattedMessage id='navigation_bar.apps' defaultMessage='Mobile apps' /></a> · </li>
+          <li><a href='/terms' target='_blank'><FormattedMessage id='getting_started.terms' defaultMessage='Terms of service' /></a> · </li>
+          <li><a href='/settings/applications' target='_blank'><FormattedMessage id='getting_started.developers' defaultMessage='Developers' /></a> · </li>
+          <li><a href='https://docs.joinmastodon.org' target='_blank'><FormattedMessage id='getting_started.documentation' defaultMessage='Documentation' /></a> · </li>
+          <li><a href='/auth/sign_out' onClick={this.handleLogoutClick}><FormattedMessage id='navigation_bar.logout' defaultMessage='Logout' /></a></li>
+        </ul>
+
+        <p>
+          <FormattedMessage
+            id='getting_started.open_source_notice'
+            defaultMessage='Mastodon is open source software. You can contribute or report issues on GitHub at {github}.'
+            values={{ github: <span><a href={source_url} rel='noopener' target='_blank'>{repository}</a> (v{version})</span> }}
+          />
+        </p>
+      </div>
+    );
+  }
+
+};
diff --git a/app/javascript/mastodon/features/ui/containers/notifications_container.js b/app/javascript/mastodon/features/ui/containers/notifications_container.js
index b60a0216f..3819da3d8 100644
--- a/app/javascript/mastodon/features/ui/containers/notifications_container.js
+++ b/app/javascript/mastodon/features/ui/containers/notifications_container.js
@@ -11,7 +11,7 @@ const mapStateToProps = (state, { intl }) => {
     const value = notification[key];
 
     if (typeof value === 'object') {
-      notification[key] = intl.formatMessage(value);
+      notification[key] = intl.formatMessage(value, notification[`${key}_values`]);
     }
   }));
 
diff --git a/app/javascript/mastodon/features/ui/index.js b/app/javascript/mastodon/features/ui/index.js
index f0c3eff83..9d284c221 100644
--- a/app/javascript/mastodon/features/ui/index.js
+++ b/app/javascript/mastodon/features/ui/index.js
@@ -141,14 +141,24 @@ class SwitchingColumnsArea extends React.PureComponent {
     return location.state !== previewMediaState && location.state !== previewVideoState;
   }
 
-  handleResize = debounce(() => {
+  handleLayoutChange = debounce(() => {
     // The cached heights are no longer accurate, invalidate
     this.props.onLayoutChange();
-
-    this.setState({ mobile: isMobile(window.innerWidth) });
   }, 500, {
     trailing: true,
-  });
+  })
+
+  handleResize = () => {
+    const mobile = isMobile(window.innerWidth);
+
+    if (mobile !== this.state.mobile) {
+      this.handleLayoutChange.cancel();
+      this.props.onLayoutChange();
+      this.setState({ mobile });
+    } else {
+      this.handleLayoutChange();
+    }
+  }
 
   setRef = c => {
     this.node = c.getWrappedInstance();
diff --git a/app/javascript/mastodon/features/ui/util/async-components.js b/app/javascript/mastodon/features/ui/util/async-components.js
index 0a07aa75e..a9b95c7b8 100644
--- a/app/javascript/mastodon/features/ui/util/async-components.js
+++ b/app/javascript/mastodon/features/ui/util/async-components.js
@@ -137,3 +137,7 @@ export function Search () {
 export function Tesseract () {
   return import(/*webpackChunkName: "tesseract" */'tesseract.js');
 }
+
+export function Audio () {
+  return import(/* webpackChunkName: "features/audio" */'../../audio');
+}
diff --git a/app/javascript/mastodon/features/video/index.js b/app/javascript/mastodon/features/video/index.js
index da48c165e..5fe4e956f 100644
--- a/app/javascript/mastodon/features/video/index.js
+++ b/app/javascript/mastodon/features/video/index.js
@@ -21,7 +21,7 @@ const messages = defineMessages({
   exit_fullscreen: { id: 'video.exit_fullscreen', defaultMessage: 'Exit full screen' },
 });
 
-const formatTime = secondsNum => {
+export const formatTime = secondsNum => {
   let hours   = Math.floor(secondsNum / 3600);
   let minutes = Math.floor((secondsNum - (hours * 3600)) / 60);
   let seconds = secondsNum - (hours * 3600) - (minutes * 60);
diff --git a/app/javascript/mastodon/locales/defaultMessages.json b/app/javascript/mastodon/locales/defaultMessages.json
index 246c9bd0e..617328613 100644
--- a/app/javascript/mastodon/locales/defaultMessages.json
+++ b/app/javascript/mastodon/locales/defaultMessages.json
@@ -744,6 +744,27 @@
   {
     "descriptors": [
       {
+        "defaultMessage": "Play",
+        "id": "video.play"
+      },
+      {
+        "defaultMessage": "Pause",
+        "id": "video.pause"
+      },
+      {
+        "defaultMessage": "Mute sound",
+        "id": "video.mute"
+      },
+      {
+        "defaultMessage": "Unmute sound",
+        "id": "video.unmute"
+      }
+    ],
+    "path": "app/javascript/mastodon/features/audio/index.json"
+  },
+  {
+    "descriptors": [
+      {
         "defaultMessage": "Blocked users",
         "id": "column.blocks"
       },
@@ -1099,15 +1120,6 @@
   {
     "descriptors": [
       {
-        "defaultMessage": "Uploading...",
-        "id": "upload_progress.label"
-      }
-    ],
-    "path": "app/javascript/mastodon/features/compose/components/upload_progress.json"
-  },
-  {
-    "descriptors": [
-      {
         "defaultMessage": "Delete",
         "id": "upload_form.undo"
       },
@@ -1317,8 +1329,8 @@
   {
     "descriptors": [
       {
-        "defaultMessage": "Refresh",
-        "id": "trends.refresh"
+        "defaultMessage": "Trending now",
+        "id": "trends.trending_now"
       }
     ],
     "path": "app/javascript/mastodon/features/getting_started/components/trends.json"
@@ -1457,6 +1469,10 @@
   {
     "descriptors": [
       {
+        "defaultMessage": "Basic",
+        "id": "home.column_settings.basic"
+      },
+      {
         "defaultMessage": "Show boosts",
         "id": "home.column_settings.show_reblogs"
       },
@@ -1838,14 +1854,6 @@
         "id": "notifications.column_settings.push"
       },
       {
-        "defaultMessage": "Basic",
-        "id": "home.column_settings.basic"
-      },
-      {
-        "defaultMessage": "Update in real-time",
-        "id": "home.column_settings.update_live"
-      },
-      {
         "defaultMessage": "Quick filter bar",
         "id": "notifications.column_settings.filter_bar.category"
       },
@@ -1904,10 +1912,6 @@
   {
     "descriptors": [
       {
-        "defaultMessage": "and {count, plural, one {# other} other {# others}}",
-        "id": "notification.and_n_others"
-      },
-      {
         "defaultMessage": "{name} followed you",
         "id": "notification.follow"
       },
diff --git a/app/javascript/mastodon/locales/en.json b/app/javascript/mastodon/locales/en.json
index 628ede3e3..28ea713a3 100644
--- a/app/javascript/mastodon/locales/en.json
+++ b/app/javascript/mastodon/locales/en.json
@@ -162,7 +162,6 @@
   "home.column_settings.basic": "Basic",
   "home.column_settings.show_reblogs": "Show boosts",
   "home.column_settings.show_replies": "Show replies",
-  "home.column_settings.update_live": "Update in real-time",
   "intervals.full.days": "{number, plural, one {# day} other {# days}}",
   "intervals.full.hours": "{number, plural, one {# hour} other {# hours}}",
   "intervals.full.minutes": "{number, plural, one {# minute} other {# minutes}}",
@@ -258,7 +257,6 @@
   "navigation_bar.profile_directory": "Profile directory",
   "navigation_bar.public_timeline": "Federated timeline",
   "navigation_bar.security": "Security",
-  "notification.and_n_others": "and {count, plural, one {# other} other {# others}}",
   "notification.favourite": "{name} favourited your status",
   "notification.follow": "{name} followed you",
   "notification.mention": "{name} mentioned you",
@@ -378,7 +376,7 @@
   "time_remaining.moments": "Moments remaining",
   "time_remaining.seconds": "{number, plural, one {# second} other {# seconds}} left",
   "trends.count_by_accounts": "{count} {rawCount, plural, one {person} other {people}} talking",
-  "trends.refresh": "Refresh",
+  "trends.trending_now": "Trending now",
   "ui.beforeunload": "Your draft will be lost if you leave Mastodon.",
   "upload_area.title": "Drag & drop to upload",
   "upload_button.label": "Add media ({formats})",
diff --git a/app/javascript/mastodon/reducers/alerts.js b/app/javascript/mastodon/reducers/alerts.js
index 089d920c3..c62ab0dfd 100644
--- a/app/javascript/mastodon/reducers/alerts.js
+++ b/app/javascript/mastodon/reducers/alerts.js
@@ -14,6 +14,7 @@ export default function alerts(state = initialState, action) {
       key: state.size > 0 ? state.last().get('key') + 1 : 0,
       title: action.title,
       message: action.message,
+      message_values: action.message_values,
     }));
   case ALERT_DISMISS:
     return state.filterNot(item => item.get('key') === action.alert.key);
diff --git a/app/javascript/mastodon/reducers/compose.js b/app/javascript/mastodon/reducers/compose.js
index 7b0cdd5a5..268237846 100644
--- a/app/javascript/mastodon/reducers/compose.js
+++ b/app/javascript/mastodon/reducers/compose.js
@@ -17,6 +17,7 @@ import {
   COMPOSE_SUGGESTIONS_CLEAR,
   COMPOSE_SUGGESTIONS_READY,
   COMPOSE_SUGGESTION_SELECT,
+  COMPOSE_SUGGESTION_TAGS_UPDATE,
   COMPOSE_TAG_HISTORY_UPDATE,
   COMPOSE_SENSITIVITY_CHANGE,
   COMPOSE_SPOILERNESS_CHANGE,
@@ -205,16 +206,36 @@ const expiresInFromExpiresAt = expires_at => {
   return [300, 1800, 3600, 21600, 86400, 259200, 604800].find(expires_in => expires_in >= delta) || 24 * 3600;
 };
 
-const normalizeSuggestions = (state, { accounts, emojis, tags }) => {
+const mergeLocalHashtagResults = (suggestions, prefix, tagHistory) => {
+  prefix = prefix.toLowerCase();
+  if (suggestions.length < 4) {
+    const localTags = tagHistory.filter(tag => tag.toLowerCase().startsWith(prefix) && !suggestions.some(suggestion => suggestion.type === 'hashtag' && suggestion.name.toLowerCase() === tag.toLowerCase()));
+    return suggestions.concat(localTags.slice(0, 4 - suggestions.length).toJS().map(tag => ({ type: 'hashtag', name: tag })));
+  } else {
+    return suggestions;
+  }
+};
+
+const normalizeSuggestions = (state, { accounts, emojis, tags, token }) => {
   if (accounts) {
     return accounts.map(item => ({ id: item.id, type: 'account' }));
   } else if (emojis) {
     return emojis.map(item => ({ ...item, type: 'emoji' }));
   } else {
-    return sortHashtagsByUse(state, tags.map(item => ({ ...item, type: 'hashtag' })));
+    return mergeLocalHashtagResults(sortHashtagsByUse(state, tags.map(item => ({ ...item, type: 'hashtag' }))), token.slice(1), state.get('tagHistory'));
   }
 };
 
+const updateSuggestionTags = (state, token) => {
+  const prefix = token.slice(1);
+
+  const suggestions = state.get('suggestions').toJS();
+  return state.merge({
+    suggestions: ImmutableList(mergeLocalHashtagResults(suggestions, prefix, state.get('tagHistory'))),
+    suggestion_token: token,
+  });
+};
+
 export default function compose(state = initialState, action) {
   switch(action.type) {
   case STORE_HYDRATE:
@@ -328,6 +349,8 @@ export default function compose(state = initialState, action) {
     return state.set('suggestions', ImmutableList(normalizeSuggestions(state, action))).set('suggestion_token', action.token);
   case COMPOSE_SUGGESTION_SELECT:
     return insertSuggestion(state, action.position, action.token, action.completion, action.path);
+  case COMPOSE_SUGGESTION_TAGS_UPDATE:
+    return updateSuggestionTags(state, action.token);
   case COMPOSE_TAG_HISTORY_UPDATE:
     return state.set('tagHistory', fromJS(action.tags));
   case TIMELINE_DELETE:
diff --git a/app/javascript/mastodon/selectors/index.js b/app/javascript/mastodon/selectors/index.js
index c87654547..6f1ce9602 100644
--- a/app/javascript/mastodon/selectors/index.js
+++ b/app/javascript/mastodon/selectors/index.js
@@ -128,6 +128,7 @@ export const getAlerts = createSelector([getAlertsBase], (base) => {
   base.forEach(item => {
     arr.push({
       message: item.get('message'),
+      message_values: item.get('message_values'),
       title: item.get('title'),
       key: item.get('key'),
       dismissAfter: 5000,
diff --git a/app/javascript/mastodon/utils/log_out.js b/app/javascript/mastodon/utils/log_out.js
new file mode 100644
index 000000000..b43417f4b
--- /dev/null
+++ b/app/javascript/mastodon/utils/log_out.js
@@ -0,0 +1,33 @@
+import Rails from 'rails-ujs';
+
+export const logOut = () => {
+  const form = document.createElement('form');
+
+  const methodInput = document.createElement('input');
+  methodInput.setAttribute('name', '_method');
+  methodInput.setAttribute('value', 'delete');
+  methodInput.setAttribute('type', 'hidden');
+  form.appendChild(methodInput);
+
+  const csrfToken = Rails.csrfToken();
+  const csrfParam = Rails.csrfParam();
+
+  if (csrfParam && csrfToken) {
+    const csrfInput = document.createElement('input');
+    csrfInput.setAttribute('name', csrfParam);
+    csrfInput.setAttribute('value', csrfToken);
+    csrfInput.setAttribute('type', 'hidden');
+    form.appendChild(csrfInput);
+  }
+
+  const submitButton = document.createElement('input');
+  submitButton.setAttribute('type', 'submit');
+  form.appendChild(submitButton);
+
+  form.method = 'post';
+  form.action = '/auth/sign_out';
+  form.style.display = 'none';
+
+  document.body.appendChild(form);
+  submitButton.click();
+};
diff --git a/app/javascript/styles/mailer.scss b/app/javascript/styles/mailer.scss
index b4fb1d709..e25a80c04 100644
--- a/app/javascript/styles/mailer.scss
+++ b/app/javascript/styles/mailer.scss
@@ -457,6 +457,13 @@ h5 {
 .status {
   padding-bottom: 32px;
 
+  &--highlighted {
+    border: 1px solid lighten($ui-base-color, 8%);
+    border-radius: 4px;
+    padding-bottom: 16px;
+    margin-bottom: 16px;
+  }
+
   .status-header {
     td {
       font-size: 14px;
diff --git a/app/javascript/styles/mastodon-light/diff.scss b/app/javascript/styles/mastodon-light/diff.scss
index ee8a7d265..e7114ed07 100644
--- a/app/javascript/styles/mastodon-light/diff.scss
+++ b/app/javascript/styles/mastodon-light/diff.scss
@@ -104,7 +104,8 @@ html {
 .box-widget input[type="email"],
 .box-widget input[type="password"],
 .box-widget textarea,
-.statuses-grid .detailed-status {
+.statuses-grid .detailed-status,
+.audio-player {
   border: 1px solid lighten($ui-base-color, 8%);
 }
 
@@ -700,3 +701,10 @@ html {
 .compose-form .compose-form__warning {
   box-shadow: none;
 }
+
+.audio-player .video-player__controls button,
+.audio-player .video-player__time-sep,
+.audio-player .video-player__time-current,
+.audio-player .video-player__time-total {
+  color: $primary-text-color;
+}
diff --git a/app/javascript/styles/mastodon/components.scss b/app/javascript/styles/mastodon/components.scss
index 5c30c1295..8aaa068d3 100644
--- a/app/javascript/styles/mastodon/components.scss
+++ b/app/javascript/styles/mastodon/components.scss
@@ -948,7 +948,8 @@
   opacity: 1;
   animation: fade 150ms linear;
 
-  .video-player {
+  .video-player,
+  .audio-player {
     margin-top: 8px;
   }
 
@@ -1043,7 +1044,8 @@
       white-space: normal;
     }
 
-    .video-player {
+    .video-player,
+    .audio-player {
       margin-top: 8px;
       max-width: 250px;
     }
@@ -1154,7 +1156,8 @@
     }
   }
 
-  .video-player {
+  .video-player,
+  .audio-player {
     margin-top: 8px;
   }
 }
@@ -2130,7 +2133,8 @@ a.account__display-name {
       padding: 15px;
 
       .media-gallery,
-      .video-player {
+      .video-player,
+      .audio-player {
         margin-top: 15px;
       }
     }
@@ -2172,7 +2176,8 @@ a.account__display-name {
 
       .media-gallery,
       &__action-bar,
-      .video-player {
+      .video-player,
+      .audio-player {
         margin-top: 10px;
       }
     }
@@ -2765,6 +2770,15 @@ a.account__display-name {
     animation: fade 150ms linear;
     margin-top: 10px;
 
+    h4 {
+      font-size: 12px;
+      text-transform: uppercase;
+      color: $darker-text-color;
+      padding: 10px;
+      font-weight: 500;
+      border-bottom: 1px solid lighten($ui-base-color, 8%);
+    }
+
     @media screen and (max-height: 810px) {
       .trends__item:nth-child(3) {
         display: none;
@@ -5034,15 +5048,63 @@ a.status-card.compact:hover {
 
 }
 
+.audio-player {
+  box-sizing: border-box;
+  position: relative;
+  background: darken($ui-base-color, 8%);
+  border-radius: 4px;
+  padding-bottom: 44px;
+
+  &.editable {
+    border-radius: 0;
+    height: 100%;
+  }
+
+  &__waveform {
+    padding: 15px 0;
+    position: relative;
+    overflow: hidden;
+
+    &::before {
+      content: "";
+      display: block;
+      position: absolute;
+      border-top: 1px solid lighten($ui-base-color, 4%);
+      width: 100%;
+      height: 0;
+      left: 0;
+      top: calc(50% + 1px);
+    }
+  }
+
+  &__progress-placeholder {
+    background-color: rgba(lighten($ui-highlight-color, 8%), 0.5);
+  }
+
+  &__wave-placeholder {
+    background-color: lighten($ui-base-color, 16%);
+  }
+
+  .video-player__controls {
+    padding: 0 15px;
+    padding-top: 10px;
+    background: darken($ui-base-color, 8%);
+    border-top: 1px solid lighten($ui-base-color, 4%);
+    border-radius: 0 0 4px 4px;
+  }
+}
+
 .video-player {
   overflow: hidden;
   position: relative;
   background: $base-shadow-color;
   max-width: 100%;
   border-radius: 4px;
+  box-sizing: border-box;
 
   &.editable {
     border-radius: 0;
+    height: 100% !important;
   }
 
   &:focus {