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-rw-r--r--app/controllers/api/v1/statuses_controller.rb58
-rw-r--r--app/javascript/flavours/glitch/actions/compose.js5
-rw-r--r--app/javascript/flavours/glitch/actions/importer/normalizer.js5
-rw-r--r--app/javascript/flavours/glitch/actions/statuses.js21
-rw-r--r--app/javascript/flavours/glitch/actions/streaming.js5
-rw-r--r--app/javascript/flavours/glitch/components/status.js1
-rw-r--r--app/javascript/flavours/glitch/components/status_action_bar.js9
-rw-r--r--app/javascript/flavours/glitch/components/status_content.js18
-rw-r--r--app/javascript/flavours/glitch/containers/status_container.js6
-rw-r--r--app/javascript/flavours/glitch/features/status/components/action_bar.js7
-rw-r--r--app/javascript/flavours/glitch/features/status/containers/detailed_status_container.js5
-rw-r--r--app/javascript/flavours/glitch/features/status/index.js7
-rw-r--r--app/javascript/flavours/glitch/reducers/compose.js5
-rw-r--r--app/javascript/flavours/glitch/styles/index.scss2
-rw-r--r--app/javascript/flavours/glitch/styles/monsterfork/components/index.scss1
-rw-r--r--app/javascript/flavours/glitch/styles/monsterfork/components/status.scss8
-rw-r--r--app/javascript/flavours/glitch/styles/monsterfork/index.scss1
-rw-r--r--app/javascript/mastodon/actions/importer/normalizer.js5
-rw-r--r--app/javascript/mastodon/actions/streaming.js5
-rw-r--r--app/javascript/mastodon/components/status_content.js20
-rw-r--r--app/javascript/mastodon/locales/en.json1
-rw-r--r--app/lib/activitypub/activity/create.rb42
-rw-r--r--app/lib/activitypub/activity/update.rb4
-rw-r--r--app/lib/activitypub/adapter.rb1
-rw-r--r--app/lib/formatter.rb4
-rw-r--r--app/models/status.rb1
-rw-r--r--app/presenters/activitypub/activity_presenter.rb5
-rw-r--r--app/serializers/activitypub/note_serializer.rb9
-rw-r--r--app/serializers/rest/status_serializer.rb5
-rw-r--r--app/services/post_status_service.rb48
-rw-r--r--app/services/process_hashtags_service.rb8
-rw-r--r--app/services/process_mentions_service.rb47
-rw-r--r--app/services/remove_media_attachments_service.rb11
-rw-r--r--app/services/resolve_mentions_service.rb73
-rw-r--r--app/services/revoke_status_service.rb104
-rw-r--r--app/services/update_status_service.rb140
-rw-r--r--app/workers/activitypub/distribution_worker.rb2
-rw-r--r--app/workers/activitypub/reply_distribution_worker.rb2
-rw-r--r--app/workers/publish_scheduled_status_worker.rb2
-rw-r--r--app/workers/remove_media_attachments_worker.rb11
-rw-r--r--app/workers/revoke_status_worker.rb11
41 files changed, 653 insertions, 72 deletions
diff --git a/app/controllers/api/v1/statuses_controller.rb b/app/controllers/api/v1/statuses_controller.rb
index c8529318f..1437496be 100644
--- a/app/controllers/api/v1/statuses_controller.rb
+++ b/app/controllers/api/v1/statuses_controller.rb
@@ -19,7 +19,7 @@ class Api::V1::StatusesController < Api::BaseController
 
   def show
     @status = cache_collection([@status], Status).first
-    render json: @status, serializer: REST::StatusSerializer
+    render json: @status, serializer: REST::StatusSerializer, source_requested: truthy_param?(:source)
   end
 
   def context
@@ -46,10 +46,40 @@ class Api::V1::StatusesController < Api::BaseController
                                          application: doorkeeper_token.application,
                                          poll: status_params[:poll],
                                          content_type: status_params[:content_type],
+                                         tags: parse_tags_param(status_params[:tags]),
+                                         mentions: parse_mentions_param(status_params[:mentions]),
                                          idempotency: request.headers['Idempotency-Key'],
                                          with_rate_limit: true)
 
-    render json: @status, serializer: @status.is_a?(ScheduledStatus) ? REST::ScheduledStatusSerializer : REST::StatusSerializer
+    render json: @status,
+           serializer: (@status.is_a?(ScheduledStatus) ? REST::ScheduledStatusSerializer : REST::StatusSerializer),
+           source_requested: truthy_param?(:source)
+  end
+
+  def update
+    @status = Status.where(account_id: current_user.account).find(params[:id])
+    authorize @status, :destroy?
+
+    @status = PostStatusService.new.call(current_user.account,
+                                         text: status_params[:status],
+                                         thread: @thread,
+                                         media_ids: status_params[:media_ids],
+                                         sensitive: status_params[:sensitive],
+                                         spoiler_text: status_params[:spoiler_text],
+                                         visibility: status_params[:visibility],
+                                         scheduled_at: status_params[:scheduled_at],
+                                         application: doorkeeper_token.application,
+                                         poll: status_params[:poll],
+                                         content_type: status_params[:content_type],
+                                         status: @status,
+                                         tags: parse_tags_param(status_params[:tags]),
+                                         mentions: parse_mentions_param(status_params[:mentions]),
+                                         idempotency: request.headers['Idempotency-Key'],
+                                         with_rate_limit: true)
+
+    render json: @status,
+           serializer: (@status.is_a?(ScheduledStatus) ? REST::ScheduledStatusSerializer : REST::StatusSerializer),
+           source_requested: truthy_param?(:source)
   end
 
   def destroy
@@ -87,6 +117,8 @@ class Api::V1::StatusesController < Api::BaseController
       :visibility,
       :scheduled_at,
       :content_type,
+      tags: [],
+      mentions: [],
       media_ids: [],
       poll: [
         :multiple,
@@ -100,4 +132,26 @@ class Api::V1::StatusesController < Api::BaseController
   def pagination_params(core_params)
     params.slice(:limit).permit(:limit).merge(core_params)
   end
+
+  def parse_tags_param(tags_param)
+    return if tags_param.blank?
+
+    tags_param.select { |value| value.respond_to?(:to_str) && value.present? }
+  end
+
+  def parse_mentions_param(mentions_param)
+    return if mentions_param.blank?
+
+    mentions_param.map do |value|
+      next if value.blank?
+
+      value = value.split('@', 3) if value.respond_to?(:to_str)
+      next unless value.is_a?(Enumerable)
+
+      mentioned_account = Account.find_by(username: value[0], domain: value[1])
+      next if mentioned_account.nil? || mentioned_account.suspended?
+
+      mentioned_account
+    end
+  end
 end
diff --git a/app/javascript/flavours/glitch/actions/compose.js b/app/javascript/flavours/glitch/actions/compose.js
index f83738093..4c2cca9eb 100644
--- a/app/javascript/flavours/glitch/actions/compose.js
+++ b/app/javascript/flavours/glitch/actions/compose.js
@@ -147,6 +147,9 @@ export function submitCompose(routerHistory) {
     let media  = getState().getIn(['compose', 'media_attachments']);
     const spoilers = getState().getIn(['compose', 'spoiler']) || getState().getIn(['local_settings', 'always_show_spoilers_field']);
     let spoilerText = spoilers ? getState().getIn(['compose', 'spoiler_text'], '') : '';
+    const id = getState().getIn(['compose', 'id'], null);
+    const submit_url = id ? `/api/v1/statuses/${id}` : '/api/v1/statuses';
+    const submit_action = (res, body, config) => id ? api(getState).put(res, body, config) : api(getState).post(res, body, config);
 
     if ((!status || !status.length) && media.size === 0) {
       return;
@@ -156,7 +159,7 @@ export function submitCompose(routerHistory) {
     if (getState().getIn(['compose', 'advanced_options', 'do_not_federate'])) {
       status = status + ' 👁️';
     }
-    api(getState).post('/api/v1/statuses', {
+    submit_action(submit_url, {
       status,
       content_type: getState().getIn(['compose', 'content_type']),
       in_reply_to_id: getState().getIn(['compose', 'in_reply_to'], null),
diff --git a/app/javascript/flavours/glitch/actions/importer/normalizer.js b/app/javascript/flavours/glitch/actions/importer/normalizer.js
index 05955963c..b71ee3150 100644
--- a/app/javascript/flavours/glitch/actions/importer/normalizer.js
+++ b/app/javascript/flavours/glitch/actions/importer/normalizer.js
@@ -53,9 +53,12 @@ export function normalizeStatus(status, normalOldStatus) {
     normalStatus.poll = status.poll.id;
   }
 
+  const oldUpdatedAt = normalOldStatus ? normalOldStatus.updated_at || normalOldStatus.created_at : null;
+  const newUpdatedAt = normalStatus ? normalStatus.updated_at || normalStatus.created_at : null;
+
   // Only calculate these values when status first encountered
   // Otherwise keep the ones already in the reducer
-  if (normalOldStatus) {
+  if (normalOldStatus && oldUpdatedAt === newUpdatedAt) {
     normalStatus.search_index = normalOldStatus.get('search_index');
     normalStatus.contentHtml = normalOldStatus.get('contentHtml');
     normalStatus.spoilerHtml = normalOldStatus.get('spoilerHtml');
diff --git a/app/javascript/flavours/glitch/actions/statuses.js b/app/javascript/flavours/glitch/actions/statuses.js
index 4d2bda78b..72e8f14d8 100644
--- a/app/javascript/flavours/glitch/actions/statuses.js
+++ b/app/javascript/flavours/glitch/actions/statuses.js
@@ -55,6 +55,24 @@ export function fetchStatus(id) {
   };
 };
 
+export function editStatus(status, routerHistory) {
+  return (dispatch, getState) => {
+    const id = status.get('id');
+
+    dispatch(fetchContext(id));
+    dispatch(fetchStatusRequest(id, false));
+
+    api(getState).get(`/api/v1/statuses/${id}`, { params: { source: 1 } }).then(response => {
+      dispatch(importFetchedStatus(response.data));
+      dispatch(fetchStatusSuccess(false));
+      dispatch(redraft(status, response.data.text, response.data.content_type, true));
+      ensureComposeIsVisible(getState, routerHistory);
+    }).catch(error => {
+      dispatch(fetchStatusFail(id, error, false));
+    });
+  };
+};
+
 export function fetchStatusSuccess(skipLoading) {
   return {
     type: STATUS_FETCH_SUCCESS,
@@ -72,12 +90,13 @@ export function fetchStatusFail(id, error, skipLoading) {
   };
 };
 
-export function redraft(status, raw_text, content_type) {
+export function redraft(status, raw_text, content_type, inplace = false) {
   return {
     type: REDRAFT,
     status,
     raw_text,
     content_type,
+    inplace,
   };
 };
 
diff --git a/app/javascript/flavours/glitch/actions/streaming.js b/app/javascript/flavours/glitch/actions/streaming.js
index 35db5dcc9..295896e55 100644
--- a/app/javascript/flavours/glitch/actions/streaming.js
+++ b/app/javascript/flavours/glitch/actions/streaming.js
@@ -18,6 +18,7 @@ import {
 } from './announcements';
 import { fetchFilters } from './filters';
 import { getLocale } from 'mastodon/locales';
+import { resetCompose } from 'flavours/glitch/actions/compose';
 
 const { messages } = getLocale();
 
@@ -96,6 +97,10 @@ export const connectTimelineStream = (timelineId, channelName, params = {}, opti
         case 'announcement.delete':
           dispatch(deleteAnnouncement(data.payload));
           break;
+        case 'refresh':
+          dispatch(resetCompose());
+          window.location.reload();
+          break;
         }
       },
     };
diff --git a/app/javascript/flavours/glitch/components/status.js b/app/javascript/flavours/glitch/components/status.js
index 4e628a420..5d3789b24 100644
--- a/app/javascript/flavours/glitch/components/status.js
+++ b/app/javascript/flavours/glitch/components/status.js
@@ -73,6 +73,7 @@ class Status extends ImmutablePureComponent {
     onReblog: PropTypes.func,
     onBookmark: PropTypes.func,
     onDelete: PropTypes.func,
+    onEdit: PropTypes.func,
     onDirect: PropTypes.func,
     onMention: PropTypes.func,
     onPin: PropTypes.func,
diff --git a/app/javascript/flavours/glitch/components/status_action_bar.js b/app/javascript/flavours/glitch/components/status_action_bar.js
index c314c5fd5..ce1c8df2c 100644
--- a/app/javascript/flavours/glitch/components/status_action_bar.js
+++ b/app/javascript/flavours/glitch/components/status_action_bar.js
@@ -12,6 +12,7 @@ import { accountAdminLink, statusAdminLink } from 'flavours/glitch/util/backend_
 const messages = defineMessages({
   delete: { id: 'status.delete', defaultMessage: 'Delete' },
   redraft: { id: 'status.redraft', defaultMessage: 'Delete & re-draft' },
+  edit: { id: 'status.edit', defaultMessage: 'Edit' },
   direct: { id: 'status.direct', defaultMessage: 'Direct message @{name}' },
   mention: { id: 'status.mention', defaultMessage: 'Mention @{name}' },
   mute: { id: 'account.mute', defaultMessage: 'Mute @{name}' },
@@ -61,6 +62,7 @@ class StatusActionBar extends ImmutablePureComponent {
     onFavourite: PropTypes.func,
     onReblog: PropTypes.func,
     onDelete: PropTypes.func,
+    onEdit: PropTypes.func,
     onDirect: PropTypes.func,
     onMention: PropTypes.func,
     onMute: PropTypes.func,
@@ -123,7 +125,7 @@ class StatusActionBar extends ImmutablePureComponent {
 
   _openInteractionDialog = type => {
     window.open(`/interact/${this.props.status.get('id')}?type=${type}`, 'mastodon-intent', 'width=445,height=600,resizable=no,menubar=no,status=no,scrollbars=yes');
-   }
+  }
 
   handleDeleteClick = () => {
     this.props.onDelete(this.props.status, this.context.router.history);
@@ -133,6 +135,10 @@ class StatusActionBar extends ImmutablePureComponent {
     this.props.onDelete(this.props.status, this.context.router.history, true);
   }
 
+  handleEditClick = () => {
+    this.props.onEdit(this.props.status, this.context.router.history);
+  }
+
   handlePinClick = () => {
     this.props.onPin(this.props.status);
   }
@@ -233,6 +239,7 @@ class StatusActionBar extends ImmutablePureComponent {
 
       menu.push({ text: intl.formatMessage(messages.delete), action: this.handleDeleteClick });
       menu.push({ text: intl.formatMessage(messages.redraft), action: this.handleRedraftClick });
+      menu.push({ text: intl.formatMessage(messages.edit), action: this.handleEditClick });
     } else {
       menu.push({ text: intl.formatMessage(messages.mention, { name: status.getIn(['account', 'username']) }), action: this.handleMentionClick });
       menu.push({ text: intl.formatMessage(messages.direct, { name: status.getIn(['account', 'username']) }), action: this.handleDirectClick });
diff --git a/app/javascript/flavours/glitch/components/status_content.js b/app/javascript/flavours/glitch/components/status_content.js
index a39f747b8..b353b028b 100644
--- a/app/javascript/flavours/glitch/components/status_content.js
+++ b/app/javascript/flavours/glitch/components/status_content.js
@@ -4,6 +4,7 @@ import PropTypes from 'prop-types';
 import { isRtl } from 'flavours/glitch/util/rtl';
 import { FormattedMessage } from 'react-intl';
 import Permalink from './permalink';
+import RelativeTimestamp from 'flavours/glitch/components/relative_timestamp';
 import classnames from 'classnames';
 import Icon from 'flavours/glitch/components/icon';
 import { autoPlayGif } from 'flavours/glitch/util/initial_state';
@@ -275,6 +276,20 @@ export default class StatusContent extends React.PureComponent {
 
     const hidden = this.props.onExpandedToggle ? !this.props.expanded : this.state.hidden;
 
+    const edited = (status.get('edited') === 0) ? null : (
+      <div className='status__edit-notice'>
+        <FormattedMessage
+          id='status.edited'
+          defaultMessage='{count, plural, one {# edit} other {# edits}} · last update: {updated_at}'
+          key={`edit-${status.get('id')}`}
+          values={{
+            count: status.get('edited'),
+            updated_at: <RelativeTimestamp timestamp={status.get('updated_at')} />,
+          }}
+        />
+      </div>
+    );
+
     const content = { __html: status.get('contentHtml') };
     const spoilerContent = { __html: status.get('spoilerHtml') };
     const directionStyle = { direction: 'ltr' };
@@ -340,6 +355,7 @@ export default class StatusContent extends React.PureComponent {
             </button>
           </p>
 
+          {edited}
           {mentionsPlaceholder}
 
           <div className={`status__content__spoiler ${!hidden ? 'status__content__spoiler--visible' : ''}`}>
@@ -366,6 +382,7 @@ export default class StatusContent extends React.PureComponent {
           tabIndex='0'
           ref={this.setRef}
         >
+          {edited}
           <div
             ref={this.setContentsRef}
             key={`contents-${tagLinks}-${rewriteMentions}`}
@@ -384,6 +401,7 @@ export default class StatusContent extends React.PureComponent {
           tabIndex='0'
           ref={this.setRef}
         >
+          {edited}
           <div ref={this.setContentsRef} key={`contents-${tagLinks}`} className='status__content__text' dangerouslySetInnerHTML={content} tabIndex='0' />
           {media}
         </div>
diff --git a/app/javascript/flavours/glitch/containers/status_container.js b/app/javascript/flavours/glitch/containers/status_container.js
index 2cbe3d094..9e011ac6b 100644
--- a/app/javascript/flavours/glitch/containers/status_container.js
+++ b/app/javascript/flavours/glitch/containers/status_container.js
@@ -17,7 +17,7 @@ import {
   pin,
   unpin,
 } from 'flavours/glitch/actions/interactions';
-import { muteStatus, unmuteStatus, deleteStatus } from 'flavours/glitch/actions/statuses';
+import { muteStatus, unmuteStatus, deleteStatus, editStatus } from 'flavours/glitch/actions/statuses';
 import { initMuteModal } from 'flavours/glitch/actions/mutes';
 import { initBlockModal } from 'flavours/glitch/actions/blocks';
 import { initReport } from 'flavours/glitch/actions/reports';
@@ -166,6 +166,10 @@ const mapDispatchToProps = (dispatch, { intl, contextType }) => ({
     }
   },
 
+  onEdit (status, history) {
+    dispatch(editStatus(status, history));
+  },
+
   onDirect (account, router) {
     dispatch(directCompose(account, router));
   },
diff --git a/app/javascript/flavours/glitch/features/status/components/action_bar.js b/app/javascript/flavours/glitch/features/status/components/action_bar.js
index 080362dd0..c4f510184 100644
--- a/app/javascript/flavours/glitch/features/status/components/action_bar.js
+++ b/app/javascript/flavours/glitch/features/status/components/action_bar.js
@@ -10,6 +10,7 @@ import { accountAdminLink, statusAdminLink } from 'flavours/glitch/util/backend_
 const messages = defineMessages({
   delete: { id: 'status.delete', defaultMessage: 'Delete' },
   redraft: { id: 'status.redraft', defaultMessage: 'Delete & re-draft' },
+  edit: { id: 'status.edit', defaultMessage: 'Edit' },
   direct: { id: 'status.direct', defaultMessage: 'Direct message @{name}' },
   mention: { id: 'status.mention', defaultMessage: 'Mention @{name}' },
   reply: { id: 'status.reply', defaultMessage: 'Reply' },
@@ -50,6 +51,7 @@ class ActionBar extends React.PureComponent {
     onMuteConversation: PropTypes.func,
     onBlock: PropTypes.func,
     onDelete: PropTypes.func.isRequired,
+    onEdit: PropTypes.func.isRequired,
     onDirect: PropTypes.func.isRequired,
     onMention: PropTypes.func.isRequired,
     onReport: PropTypes.func,
@@ -82,6 +84,10 @@ class ActionBar extends React.PureComponent {
     this.props.onDelete(this.props.status, this.context.router.history, true);
   }
 
+  handleEditClick = () => {
+    this.props.onEdit(this.props.status, this.context.router.history);
+  }
+
   handleDirectClick = () => {
     this.props.onDirect(this.props.status.get('account'), this.context.router.history);
   }
@@ -164,6 +170,7 @@ class ActionBar extends React.PureComponent {
       menu.push(null);
       menu.push({ text: intl.formatMessage(messages.delete), action: this.handleDeleteClick });
       menu.push({ text: intl.formatMessage(messages.redraft), action: this.handleRedraftClick });
+      menu.push({ text: intl.formatMessage(messages.edit), action: this.handleEditClick });
     } else {
       menu.push({ text: intl.formatMessage(messages.mention, { name: status.getIn(['account', 'username']) }), action: this.handleMentionClick });
       menu.push({ text: intl.formatMessage(messages.direct, { name: status.getIn(['account', 'username']) }), action: this.handleDirectClick });
diff --git a/app/javascript/flavours/glitch/features/status/containers/detailed_status_container.js b/app/javascript/flavours/glitch/features/status/containers/detailed_status_container.js
index 9d11f37e0..eeafc0b08 100644
--- a/app/javascript/flavours/glitch/features/status/containers/detailed_status_container.js
+++ b/app/javascript/flavours/glitch/features/status/containers/detailed_status_container.js
@@ -17,6 +17,7 @@ import {
 import {
   muteStatus,
   unmuteStatus,
+  editStatus,
   deleteStatus,
   hideStatus,
   revealStatus,
@@ -118,6 +119,10 @@ const mapDispatchToProps = (dispatch, { intl }) => ({
     }
   },
 
+  onEdit (status, history) {
+    dispatch(editStatus(status, history));
+  },
+
   onDirect (account, router) {
     dispatch(directCompose(account, router));
   },
diff --git a/app/javascript/flavours/glitch/features/status/index.js b/app/javascript/flavours/glitch/features/status/index.js
index 3e2e95f35..beea64341 100644
--- a/app/javascript/flavours/glitch/features/status/index.js
+++ b/app/javascript/flavours/glitch/features/status/index.js
@@ -26,7 +26,7 @@ import {
   directCompose,
 } from 'flavours/glitch/actions/compose';
 import { changeLocalSetting } from 'flavours/glitch/actions/local_settings';
-import { muteStatus, unmuteStatus, deleteStatus } from 'flavours/glitch/actions/statuses';
+import { muteStatus, unmuteStatus, deleteStatus, editStatus } from 'flavours/glitch/actions/statuses';
 import { initMuteModal } from 'flavours/glitch/actions/mutes';
 import { initBlockModal } from 'flavours/glitch/actions/blocks';
 import { initReport } from 'flavours/glitch/actions/reports';
@@ -304,6 +304,10 @@ class Status extends ImmutablePureComponent {
     }
   }
 
+  handleEditClick = (status, history) => {
+    this.props.dispatch(editStatus(status, history));
+  }
+
   handleDirectClick = (account, router) => {
     this.props.dispatch(directCompose(account, router));
   }
@@ -588,6 +592,7 @@ class Status extends ImmutablePureComponent {
                   onReblog={this.handleReblogClick}
                   onBookmark={this.handleBookmarkClick}
                   onDelete={this.handleDeleteClick}
+                  onEdit={this.handleEditClick}
                   onDirect={this.handleDirectClick}
                   onMention={this.handleMentionClick}
                   onMute={this.handleMuteClick}
diff --git a/app/javascript/flavours/glitch/reducers/compose.js b/app/javascript/flavours/glitch/reducers/compose.js
index 478883f91..5f53361fa 100644
--- a/app/javascript/flavours/glitch/reducers/compose.js
+++ b/app/javascript/flavours/glitch/reducers/compose.js
@@ -66,6 +66,7 @@ const initialState = ImmutableMap({
     do_not_federate: false,
     threaded_mode: false,
   }),
+  id: null,
   sensitive: false,
   elefriend: Math.random() < glitchProbability ? Math.floor(Math.random() * totalElefriends) : totalElefriends,
   spoiler: false,
@@ -149,6 +150,7 @@ function apiStatusToTextHashtags (state, status) {
 
 function clearAll(state) {
   return state.withMutations(map => {
+    map.set('id', null);
     map.set('text', '');
     if (defaultContentType) map.set('content_type', defaultContentType);
     map.set('spoiler', false);
@@ -404,8 +406,10 @@ export default function compose(state = initialState, action) {
     });
   case COMPOSE_REPLY_CANCEL:
     state = state.setIn(['advanced_options', 'threaded_mode'], false);
+  // eslint-disable-next-line no-fallthrough
   case COMPOSE_RESET:
     return state.withMutations(map => {
+      map.set('id', null);
       map.set('in_reply_to', null);
       if (defaultContentType) map.set('content_type', defaultContentType);
       map.set('text', '');
@@ -505,6 +509,7 @@ export default function compose(state = initialState, action) {
     let text = action.raw_text || unescapeHTML(expandMentions(action.status));
     if (do_not_federate) text = text.replace(/ ?👁\ufe0f?\u200b?$/, '');
     return state.withMutations(map => {
+      map.set('id', action.inplace ? action.status.get('id') : null);
       map.set('text', text);
       map.set('content_type', action.content_type || 'text/plain');
       map.set('in_reply_to', action.status.get('in_reply_to_id'));
diff --git a/app/javascript/flavours/glitch/styles/index.scss b/app/javascript/flavours/glitch/styles/index.scss
index af73feb89..2994d7aff 100644
--- a/app/javascript/flavours/glitch/styles/index.scss
+++ b/app/javascript/flavours/glitch/styles/index.scss
@@ -23,3 +23,5 @@
 @import 'accessibility';
 @import 'rtl';
 @import 'dashboard';
+
+@import 'monsterfork/index';
diff --git a/app/javascript/flavours/glitch/styles/monsterfork/components/index.scss b/app/javascript/flavours/glitch/styles/monsterfork/components/index.scss
new file mode 100644
index 000000000..827779123
--- /dev/null
+++ b/app/javascript/flavours/glitch/styles/monsterfork/components/index.scss
@@ -0,0 +1 @@
+@import 'status';
diff --git a/app/javascript/flavours/glitch/styles/monsterfork/components/status.scss b/app/javascript/flavours/glitch/styles/monsterfork/components/status.scss
new file mode 100644
index 000000000..e64f21a21
--- /dev/null
+++ b/app/javascript/flavours/glitch/styles/monsterfork/components/status.scss
@@ -0,0 +1,8 @@
+.status__edit-notice {
+  & > span {
+    color: $dark-text-color;
+    line-height: normal;
+    font-style: italic;
+    font-size: 12px;
+  }
+}
diff --git a/app/javascript/flavours/glitch/styles/monsterfork/index.scss b/app/javascript/flavours/glitch/styles/monsterfork/index.scss
new file mode 100644
index 000000000..841415620
--- /dev/null
+++ b/app/javascript/flavours/glitch/styles/monsterfork/index.scss
@@ -0,0 +1 @@
+@import 'components/index';
diff --git a/app/javascript/mastodon/actions/importer/normalizer.js b/app/javascript/mastodon/actions/importer/normalizer.js
index dca44917a..d0a55538f 100644
--- a/app/javascript/mastodon/actions/importer/normalizer.js
+++ b/app/javascript/mastodon/actions/importer/normalizer.js
@@ -53,9 +53,12 @@ export function normalizeStatus(status, normalOldStatus) {
     normalStatus.poll = status.poll.id;
   }
 
+  const oldUpdatedAt = normalOldStatus ? normalOldStatus.updated_at || normalOldStatus.created_at : null;
+  const newUpdatedAt = normalStatus ? normalStatus.updated_at || normalStatus.created_at : null;
+
   // Only calculate these values when status first encountered
   // Otherwise keep the ones already in the reducer
-  if (normalOldStatus) {
+  if (normalOldStatus && oldUpdatedAt === newUpdatedAt) {
     normalStatus.search_index = normalOldStatus.get('search_index');
     normalStatus.contentHtml = normalOldStatus.get('contentHtml');
     normalStatus.spoilerHtml = normalOldStatus.get('spoilerHtml');
diff --git a/app/javascript/mastodon/actions/streaming.js b/app/javascript/mastodon/actions/streaming.js
index beb5c6a4a..1adc1b815 100644
--- a/app/javascript/mastodon/actions/streaming.js
+++ b/app/javascript/mastodon/actions/streaming.js
@@ -18,6 +18,7 @@ import {
 } from './announcements';
 import { fetchFilters } from './filters';
 import { getLocale } from '../locales';
+import { resetCompose } from '../actions/compose';
 
 const { messages } = getLocale();
 
@@ -96,6 +97,10 @@ export const connectTimelineStream = (timelineId, channelName, params = {}, opti
         case 'announcement.delete':
           dispatch(deleteAnnouncement(data.payload));
           break;
+        case 'refresh':
+          dispatch(resetCompose());
+          window.location.reload();
+          break;
         }
       },
     };
diff --git a/app/javascript/mastodon/components/status_content.js b/app/javascript/mastodon/components/status_content.js
index 3200f2d82..df05d8515 100644
--- a/app/javascript/mastodon/components/status_content.js
+++ b/app/javascript/mastodon/components/status_content.js
@@ -4,6 +4,7 @@ import PropTypes from 'prop-types';
 import { isRtl } from '../rtl';
 import { FormattedMessage } from 'react-intl';
 import Permalink from './permalink';
+import RelativeTimestamp from './relative_timestamp';
 import classnames from 'classnames';
 import PollContainer from 'mastodon/containers/poll_container';
 import Icon from 'mastodon/components/icon';
@@ -180,6 +181,20 @@ export default class StatusContent extends React.PureComponent {
       return null;
     }
 
+    const edited = (status.get('edited') === 0) ? null : (
+      <div className='status__edit-notice'>
+        <FormattedMessage
+          id='status.edited'
+          defaultMessage='{count, plural, one {# edit} other {# edits}} · last update: {updated_at}'
+          key={`edit-${status.get('id')}`}
+          values={{
+            count: status.get('edited'),
+            updated_at: <RelativeTimestamp timestamp={status.get('updated_at')} />,
+          }}
+        />
+      </div>
+    );
+
     const hidden = this.props.onExpandedToggle ? !this.props.expanded : this.state.hidden;
     const renderReadMore = this.props.onClick && status.get('collapsed');
     const renderViewThread = this.props.showThread && status.get('in_reply_to_id') && status.get('in_reply_to_account_id') === status.getIn(['account', 'id']);
@@ -232,6 +247,7 @@ export default class StatusContent extends React.PureComponent {
             <button tabIndex='0' className={`status__content__spoiler-link ${hidden ? 'status__content__spoiler-link--show-more' : 'status__content__spoiler-link--show-less'}`} onClick={this.handleSpoilerClick}>{toggleText}</button>
           </p>
 
+          {edited}
           {mentionsPlaceholder}
 
           <div tabIndex={!hidden ? 0 : null} className={`status__content__text ${!hidden ? 'status__content__text--visible' : ''}`} style={directionStyle} dangerouslySetInnerHTML={content} />
@@ -244,6 +260,8 @@ 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} key='status-content'>
+          {edited}
+
           <div className='status__content__text status__content__text--visible' style={directionStyle} dangerouslySetInnerHTML={content} />
 
           {!!status.get('poll') && <PollContainer pollId={status.get('poll')} />}
@@ -260,6 +278,8 @@ export default class StatusContent extends React.PureComponent {
     } else {
       return (
         <div className={classNames} ref={this.setRef} tabIndex='0' style={directionStyle}>
+          {edited}
+
           <div className='status__content__text status__content__text--visible' style={directionStyle} dangerouslySetInnerHTML={content} />
 
           {!!status.get('poll') && <PollContainer pollId={status.get('poll')} />}
diff --git a/app/javascript/mastodon/locales/en.json b/app/javascript/mastodon/locales/en.json
index 025ae6e7d..7702c8be1 100644
--- a/app/javascript/mastodon/locales/en.json
+++ b/app/javascript/mastodon/locales/en.json
@@ -380,6 +380,7 @@
   "status.delete": "Delete",
   "status.detailed_status": "Detailed conversation view",
   "status.direct": "Direct message @{name}",
+  "status.edited": "{count, plural, one {# edit} other {# edits}} · last update: {updated_at}",
   "status.embed": "Embed",
   "status.favourite": "Favourite",
   "status.filtered": "Filtered",
diff --git a/app/lib/activitypub/activity/create.rb b/app/lib/activitypub/activity/create.rb
index f09caaae4..d2bbd26d5 100644
--- a/app/lib/activitypub/activity/create.rb
+++ b/app/lib/activitypub/activity/create.rb
@@ -51,7 +51,7 @@ class ActivityPub::Activity::Create < ActivityPub::Activity
 
         @status = find_existing_status
 
-        if @status.nil?
+        if @status.nil? || @options[:update]
           process_status
         elsif @options[:delivered_to_account_id].present?
           postprocess_audience_and_deliver
@@ -77,6 +77,17 @@ class ActivityPub::Activity::Create < ActivityPub::Activity
     @mentions = []
     @params   = {}
 
+    unless @status.nil?
+      process_status_update_params
+      process_tags
+      process_audience
+
+      @status = UpdateStatusService.new.call(@status, @params, @mentions, @tags)
+      resolve_thread(@status)
+      fetch_replies(@status)
+      return @status
+    end
+
     process_status_params
     process_tags
     process_audience
@@ -121,6 +132,19 @@ class ActivityPub::Activity::Create < ActivityPub::Activity
     end
   end
 
+  def process_status_update_params
+    @params = begin
+      {
+        text: text_from_content || '',
+        language: detected_language,
+        spoiler_text: converted_object_type? ? '' : (text_from_summary || ''),
+        sensitive: @object['sensitive'] || false,
+        visibility: visibility_from_audience,
+        media_attachment_ids: process_attachments.take(4).map(&:id),
+      }
+    end
+  end
+
   def process_audience
     (as_array(audience_to) + as_array(audience_cc)).uniq.each do |audience|
       next if audience == ActivityPub::TagManager::COLLECTIONS[:public]
@@ -240,7 +264,21 @@ class ActivityPub::Activity::Create < ActivityPub::Activity
 
       begin
         href             = Addressable::URI.parse(attachment['url']).normalize.to_s
-        media_attachment = MediaAttachment.create(account: @account, remote_url: href, thumbnail_remote_url: icon_url_from_attachment(attachment), description: attachment['summary'].presence || attachment['name'].presence, focus: attachment['focalPoint'], blurhash: supported_blurhash?(attachment['blurhash']) ? attachment['blurhash'] : nil)
+        media_attachment = MediaAttachment.find_by(account: @account, remote_url: href)
+
+        if media_attachment.nil?
+          media_attachment = MediaAttachment.create(account: @account, remote_url: href, thumbnail_remote_url: icon_url_from_attachment(attachment), description: attachment['summary'].presence || attachment['name'].presence, focus: attachment['focalPoint'], blurhash: supported_blurhash?(attachment['blurhash']) ? attachment['blurhash'] : nil)
+        else
+          updated_description = attachment['summary'].presence || media_attachment[:description].presence || attachment['name'].presence || media_attachment[:name].presence
+          updated_focus = attachment['focalPoint'].presence || media_attachment['focalPoint'].presence
+          updated_blurhash = supported_blurhash?(attachment['blurhash']) ? attachment['blurhash'] : media_attachment[:blurhash]
+
+          media_attachment.update(description: updated_description, focus: updated_focus, blurhash: updated_blurhash)
+
+          media_attachments << media_attachment
+          next
+        end
+
         media_attachments << media_attachment
 
         next if unsupported_media_type?(attachment['mediaType']) || skip_download?
diff --git a/app/lib/activitypub/activity/update.rb b/app/lib/activitypub/activity/update.rb
index 018e2df54..d1dba5196 100644
--- a/app/lib/activitypub/activity/update.rb
+++ b/app/lib/activitypub/activity/update.rb
@@ -2,6 +2,7 @@
 
 class ActivityPub::Activity::Update < ActivityPub::Activity
   SUPPORTED_TYPES = %w(Application Group Organization Person Service).freeze
+  SUPPORTED_OBJECT_TYPES = (ActivityPub::Activity::SUPPORTED_TYPES + ActivityPub::Activity::CONVERTED_TYPES).freeze
 
   def perform
     dereference_object!
@@ -10,6 +11,9 @@ class ActivityPub::Activity::Update < ActivityPub::Activity
       update_account
     elsif equals_or_includes_any?(@object['type'], %w(Question))
       update_poll
+    elsif equals_or_includes_any?(@object['type'], SUPPORTED_OBJECT_TYPES)
+      @options[:update] = true
+      ActivityPub::Activity::Create.new(@json, @account, @options).perform
     end
   end
 
diff --git a/app/lib/activitypub/adapter.rb b/app/lib/activitypub/adapter.rb
index 712c48823..309b84c37 100644
--- a/app/lib/activitypub/adapter.rb
+++ b/app/lib/activitypub/adapter.rb
@@ -8,6 +8,7 @@ class ActivityPub::Adapter < ActiveModelSerializers::Adapter::Base
 
   CONTEXT_EXTENSION_MAP = {
     direct_message: { 'litepub': 'http://litepub.social/ns#', 'directMessage': 'litepub:directMessage' },
+    edited: { 'mp' => 'http://the.monsterpit.net/ns#', 'edited' => 'mp:edited' },
     manually_approves_followers: { 'manuallyApprovesFollowers' => 'as:manuallyApprovesFollowers' },
     sensitive: { 'sensitive' => 'as:sensitive' },
     hashtag: { 'Hashtag' => 'as:Hashtag' },
diff --git a/app/lib/formatter.rb b/app/lib/formatter.rb
index 051f27408..d5408a30b 100644
--- a/app/lib/formatter.rb
+++ b/app/lib/formatter.rb
@@ -122,8 +122,8 @@ class Formatter
     html.html_safe # rubocop:disable Rails/OutputSafety
   end
 
-  def linkify(text)
-    html = encode_and_link_urls(text)
+  def linkify(text, accounts = nil, options = {})
+    html = encode_and_link_urls(text, accounts, options)
     html = simple_format(html, {}, sanitize: false)
     html = html.delete("\n")
 
diff --git a/app/models/status.rb b/app/models/status.rb
index e4d94186e..02f48621a 100644
--- a/app/models/status.rb
+++ b/app/models/status.rb
@@ -25,6 +25,7 @@
 #  poll_id                :bigint(8)
 #  content_type           :string
 #  deleted_at             :datetime
+#  edited                 :integer          default(0)
 #
 
 class Status < ApplicationRecord
diff --git a/app/presenters/activitypub/activity_presenter.rb b/app/presenters/activitypub/activity_presenter.rb
index 5d174767f..41ce01474 100644
--- a/app/presenters/activitypub/activity_presenter.rb
+++ b/app/presenters/activitypub/activity_presenter.rb
@@ -4,10 +4,11 @@ class ActivityPub::ActivityPresenter < ActiveModelSerializers::Model
   attributes :id, :type, :actor, :published, :to, :cc, :virtual_object
 
   class << self
-    def from_status(status)
+    def from_status(status, update: false)
       new.tap do |presenter|
+        default_activity    = update && status.edited.positive? ? 'Update' : 'Create'
         presenter.id        = ActivityPub::TagManager.instance.activity_uri_for(status)
-        presenter.type      = status.reblog? ? 'Announce' : 'Create'
+        presenter.type      = status.reblog? ? 'Announce' : default_activity
         presenter.actor     = ActivityPub::TagManager.instance.uri_for(status.account)
         presenter.published = status.created_at
         presenter.to        = ActivityPub::TagManager.instance.to(status)
diff --git a/app/serializers/activitypub/note_serializer.rb b/app/serializers/activitypub/note_serializer.rb
index a0965790e..431a0faa4 100644
--- a/app/serializers/activitypub/note_serializer.rb
+++ b/app/serializers/activitypub/note_serializer.rb
@@ -3,12 +3,16 @@
 class ActivityPub::NoteSerializer < ActivityPub::Serializer
   context_extensions :atom_uri, :conversation, :sensitive, :voters_count, :direct_message
 
+  context_extensions :edited
+
   attributes :id, :type, :summary,
              :in_reply_to, :published, :url,
              :attributed_to, :to, :cc, :sensitive,
              :atom_uri, :in_reply_to_atom_uri,
              :conversation
 
+  attribute :updated
+
   attribute :content
   attribute :content_map, if: :language?
 
@@ -29,6 +33,7 @@ class ActivityPub::NoteSerializer < ActivityPub::Serializer
 
   def id
     raise Mastodon::NotPermittedError, 'Local-only statuses should not be serialized' if object.local_only? && !instance_options[:allow_local_only]
+
     ActivityPub::TagManager.instance.uri_for(object)
   end
 
@@ -94,6 +99,10 @@ class ActivityPub::NoteSerializer < ActivityPub::Serializer
     object.created_at.iso8601
   end
 
+  def updated
+    object.updated_at.iso8601
+  end
+
   def url
     ActivityPub::TagManager.instance.url_for(object)
   end
diff --git a/app/serializers/rest/status_serializer.rb b/app/serializers/rest/status_serializer.rb
index 58e7bd4e4..26748f683 100644
--- a/app/serializers/rest/status_serializer.rb
+++ b/app/serializers/rest/status_serializer.rb
@@ -6,6 +6,9 @@ class REST::StatusSerializer < ActiveModel::Serializer
              :uri, :url, :replies_count, :reblogs_count,
              :favourites_count
 
+  # Monsterfork additions
+  attributes :updated_at, :edited
+
   attribute :favourited, if: :current_user?
   attribute :reblogged, if: :current_user?
   attribute :muted, if: :current_user?
@@ -13,7 +16,7 @@ class REST::StatusSerializer < ActiveModel::Serializer
   attribute :pinned, if: :pinnable?
   attribute :local_only if :local?
 
-  attribute :content, unless: :source_requested?
+  attribute :content
   attribute :text, if: :source_requested?
   attribute :content_type, if: :source_requested?
 
diff --git a/app/services/post_status_service.rb b/app/services/post_status_service.rb
index 250d0e8ed..c52ca4a9b 100644
--- a/app/services/post_status_service.rb
+++ b/app/services/post_status_service.rb
@@ -20,6 +20,9 @@ class PostStatusService < BaseService
   # @option [Doorkeeper::Application] :application
   # @option [String] :idempotency Optional idempotency key
   # @option [Boolean] :with_rate_limit
+  # @option [Status] :status Edit an existing status
+  # @option [Enumerable] :mentions Optional array of Mentions to include
+  # @option [Enumerable] :tags Option array of tag names to include
   # @return [Status]
   def call(account, options = {})
     @account     = account
@@ -27,6 +30,11 @@ class PostStatusService < BaseService
     @text        = @options[:text] || ''
     @in_reply_to = @options[:thread]
 
+    raise Mastodon::NotPermittedError if different_author?
+
+    @tag_names   = (@options[:tags] || []).select { |tag| tag =~ /\A(#{Tag::HASHTAG_NAME_RE})\z/i }
+    @mentions    = @options[:mentions] || []
+
     return idempotency_duplicate if idempotency_given? && idempotency_duplicate?
 
     validate_media!
@@ -34,6 +42,8 @@ class PostStatusService < BaseService
 
     if scheduled?
       schedule_status!
+    elsif @options[:status].present? && status_exists?
+      update_status!
     else
       process_status!
       postprocess_status!
@@ -49,14 +59,14 @@ class PostStatusService < BaseService
 
   def preprocess_attributes!
     if @text.blank? && @options[:spoiler_text].present?
-     @text = '.'
-     if @media&.find(&:video?) || @media&.find(&:gifv?)
-       @text = '📹'
-     elsif @media&.find(&:audio?)
-       @text = '🎵'
-     elsif @media&.find(&:image?)
-       @text = '🖼'
-     end
+      @text = '.'
+      if @media&.find(&:video?) || @media&.find(&:gifv?)
+        @text = '📹'
+      elsif @media&.find(&:audio?)
+        @text = '🎵'
+      elsif @media&.find(&:image?)
+        @text = '🖼'
+      end
     end
     @sensitive    = (@options[:sensitive].nil? ? @account.user&.setting_default_sensitive : @options[:sensitive]) || @options[:spoiler_text].present?
     @visibility   = @options[:visibility] || @account.user&.setting_default_privacy
@@ -75,8 +85,8 @@ class PostStatusService < BaseService
       @status = @account.statuses.create!(status_attributes)
     end
 
-    process_hashtags_service.call(@status)
-    process_mentions_service.call(@status)
+    process_hashtags_service.call(@status, nil, @tag_names)
+    process_mentions_service.call(@status, mentions: @mentions)
   end
 
   def schedule_status!
@@ -103,12 +113,18 @@ class PostStatusService < BaseService
     PollExpirationNotifyWorker.perform_at(@status.poll.expires_at, @status.poll.id) if @status.poll
   end
 
+  def update_status!
+    tags = Tag.find_or_create_by_names(@tag_names)
+    @status = UpdateStatusService.new.call(@options[:status], status_attributes, @mentions, tags)
+  end
+
   def validate_media!
     return if @options[:media_ids].blank? || !@options[:media_ids].is_a?(Enumerable)
 
     raise Mastodon::ValidationError, I18n.t('media_attachments.validations.too_many') if @options[:media_ids].size > 4 || @options[:poll].present?
 
-    @media = @account.media_attachments.where(status_id: nil).where(id: @options[:media_ids].take(4).map(&:to_i))
+    @media = @options[:status].present? ? @account.media_attachments.where(status_id: [nil, @options[:status].id]) : @account.media_attachments.where(status_id: nil)
+    @media = @media.where(id: @options[:media_ids].take(4).map(&:to_i))
 
     raise Mastodon::ValidationError, I18n.t('media_attachments.validations.images_and_video') if @media.size > 1 && @media.find(&:audio_or_video?)
     raise Mastodon::ValidationError, I18n.t('media_attachments.validations.not_ready') if @media.any?(&:not_processed?)
@@ -198,6 +214,16 @@ class PostStatusService < BaseService
       options_hash[:scheduled_at]    = nil
       options_hash[:idempotency]     = nil
       options_hash[:with_rate_limit] = false
+      options_hash[:mention_ids]     = options_hash.delete(:mentions)&.pluck(:id)
+      options_hash[:status_id]       = options_hash.delete(:status)&.id
     end
   end
+
+  def different_author?
+    @options[:status].present? && @options[:status].account_id != @account.id
+  end
+
+  def status_exists?
+    !(@options[:status].discarded? || @options[:status].destroyed?)
+  end
 end
diff --git a/app/services/process_hashtags_service.rb b/app/services/process_hashtags_service.rb
index e8e139b05..1f0d64323 100644
--- a/app/services/process_hashtags_service.rb
+++ b/app/services/process_hashtags_service.rb
@@ -1,11 +1,15 @@
 # frozen_string_literal: true
 
 class ProcessHashtagsService < BaseService
-  def call(status, tags = [])
-    tags    = Extractor.extract_hashtags(status.text) if status.local?
+  def call(status, tags = nil, extra_tags = [])
+    tags ||= extra_tags | (status.local? ? Extractor.extract_hashtags(status.text) : [])
     records = []
 
+    tag_ids = status.tag_ids.to_set
+
     Tag.find_or_create_by_names(tags) do |tag|
+      next if tag_ids.include?(tag.id)
+
       status.tags << tag
       records << tag
 
diff --git a/app/services/process_mentions_service.rb b/app/services/process_mentions_service.rb
index f45422970..f3ce81ef1 100644
--- a/app/services/process_mentions_service.rb
+++ b/app/services/process_mentions_service.rb
@@ -7,42 +7,15 @@ class ProcessMentionsService < BaseService
   # local mention pointers, send Salmon notifications to mentioned
   # remote users
   # @param [Status] status
-  def call(status)
+  # @option [Enumerable] :mentions Mentions to include
+  # @option [Boolean] :reveal_implicit_mentions Append implicit mentions to text
+  def call(status, mentions: [], reveal_implicit_mentions: true)
     return unless status.local?
 
-    @status  = status
-    mentions = []
+    @status = status
+    @status.text, mentions = ResolveMentionsService.new.call(@status, mentions: mentions, reveal_implicit_mentions: reveal_implicit_mentions)
+    @status.save!
 
-    status.text = status.text.gsub(Account::MENTION_RE) do |match|
-      username, domain = Regexp.last_match(1).split('@')
-
-      domain = begin
-        if TagManager.instance.local_domain?(domain)
-          nil
-        else
-          TagManager.instance.normalize_domain(domain)
-        end
-      end
-
-      mentioned_account = Account.find_remote(username, domain)
-
-      if mention_undeliverable?(mentioned_account)
-        begin
-          mentioned_account = resolve_account_service.call(Regexp.last_match(1))
-        rescue Goldfinger::Error, HTTP::Error, OpenSSL::SSL::SSLError, Mastodon::UnexpectedResponseError
-          mentioned_account = nil
-        end
-      end
-
-      next match if mention_undeliverable?(mentioned_account) || mentioned_account&.suspended?
-
-      mention = mentioned_account.mentions.new(status: status)
-      mentions << mention if mention.save
-
-      "@#{mentioned_account.acct}"
-    end
-
-    status.save!
     check_for_spam(status)
 
     mentions.each { |mention| create_notification(mention) }
@@ -50,10 +23,6 @@ class ProcessMentionsService < BaseService
 
   private
 
-  def mention_undeliverable?(mentioned_account)
-    mentioned_account.nil? || (!mentioned_account.local? && mentioned_account.ostatus?)
-  end
-
   def create_notification(mention)
     mentioned_account = mention.account
 
@@ -69,10 +38,6 @@ class ProcessMentionsService < BaseService
     @activitypub_json = Oj.dump(serialize_payload(ActivityPub::ActivityPresenter.from_status(@status), ActivityPub::ActivitySerializer, signer: @status.account))
   end
 
-  def resolve_account_service
-    ResolveAccountService.new
-  end
-
   def check_for_spam(status)
     SpamCheck.perform(status)
   end
diff --git a/app/services/remove_media_attachments_service.rb b/app/services/remove_media_attachments_service.rb
new file mode 100644
index 000000000..de3cd9afb
--- /dev/null
+++ b/app/services/remove_media_attachments_service.rb
@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+class RemoveMediaAttachmentsService < BaseService
+  # Remove a list of media attachments by their IDs
+  # @param [Enumerable] attachment_ids
+  def call(attachment_ids)
+    media_attachments = MediaAttachment.where(id: attachment_ids)
+    media_attachments.map(&:id).each { |id| Rails.cache.delete_matched("statuses/#{id}-*") }
+    media_attachments.destroy_all
+  end
+end
diff --git a/app/services/resolve_mentions_service.rb b/app/services/resolve_mentions_service.rb
new file mode 100644
index 000000000..cb00b5c19
--- /dev/null
+++ b/app/services/resolve_mentions_service.rb
@@ -0,0 +1,73 @@
+# frozen_string_literal: true
+
+class ResolveMentionsService < BaseService
+  # Scan text for mentions and create local mention pointers
+  # @param [Status] status Status to attach to mention pointers
+  # @option [String] :text Text containing mentions to resolve (default: use status text)
+  # @option [Enumerable] :mentions Additional mentions to include
+  # @option [Boolean] :reveal_implicit_mentions Append implicit mentions to text
+  # @return [Array] Array containing text with mentions resolved (String) and mention pointers (Set)
+  def call(status, text: nil, mentions: [], reveal_implicit_mentions: true)
+    mentions                  = Mention.includes(:account).where(id: mentions.pluck(:id), accounts: { suspended_at: nil }).to_set
+    implicit_mention_acct_ids = mentions.pluck(:account_id).to_set
+    text                      = status.text if text.nil?
+
+    text.gsub(Account::MENTION_RE) do |match|
+      username, domain = Regexp.last_match(1).split('@')
+
+      domain = begin
+        if TagManager.instance.local_domain?(domain)
+          nil
+        else
+          TagManager.instance.normalize_domain(domain)
+        end
+      end
+
+      mentioned_account = Account.find_remote(username, domain)
+
+      if mention_undeliverable?(mentioned_account)
+        begin
+          mentioned_account = resolve_account_service.call(Regexp.last_match(1))
+        rescue Goldfinger::Error, HTTP::Error, OpenSSL::SSL::SSLError, Mastodon::UnexpectedResponseError
+          mentioned_account = nil
+        end
+      end
+
+      next match if mention_undeliverable?(mentioned_account) || mentioned_account&.suspended?
+
+      mentions << mentioned_account.mentions.where(status: status).first_or_create(status: status)
+      implicit_mention_acct_ids.delete(mentioned_account.id)
+
+      "@#{mentioned_account.acct}"
+    end
+
+    if reveal_implicit_mentions && implicit_mention_acct_ids.present?
+      implicit_mention_accts = Account.where(id: implicit_mention_acct_ids, suspended_at: nil)
+      formatted_accts = format_mentions(implicit_mention_accts)
+      formatted_accts = Formatter.instance.linkify(formatted_accts, implicit_mention_accts) unless status.local?
+      text << formatted_accts
+    end
+
+    [text, mentions]
+  end
+
+  private
+
+  def mention_undeliverable?(mentioned_account)
+    mentioned_account.nil? || (!mentioned_account.local? && mentioned_account.ostatus?)
+  end
+
+  def resolve_account_service
+    ResolveAccountService.new
+  end
+
+  def format_mentions(accounts)
+    "\n\n#{accounts_to_mentions(accounts).join(' ')}"
+  end
+
+  def accounts_to_mentions(accounts)
+    accounts.reorder(:username, :domain).pluck(:username, :domain).map do |username, domain|
+      domain.blank? ? "@#{username}" : "@#{username}@#{domain}"
+    end
+  end
+end
diff --git a/app/services/revoke_status_service.rb b/app/services/revoke_status_service.rb
new file mode 100644
index 000000000..b7d7a6e18
--- /dev/null
+++ b/app/services/revoke_status_service.rb
@@ -0,0 +1,104 @@
+# frozen_string_literal: true
+
+class RevokeStatusService < BaseService
+  include Redisable
+  include Payloadable
+
+  # Unpublish a status from a given set of local accounts' timelines and public, if visibility changed.
+  # @param   [Status] status
+  # @param   [Enumerable] account_ids
+  def call(status, account_ids)
+    @payload      = Oj.dump(event: :delete, payload: status.id.to_s)
+    @status       = status
+    @account      = status.account
+    @account_ids  = account_ids
+    @mentions     = status.active_mentions.where(account_id: account_ids)
+    @reblogs      = status.reblogs.where(account_id: account_ids)
+
+    RedisLock.acquire(lock_options) do |lock|
+      if lock.acquired?
+        remove_from_followers
+        remove_from_lists
+        remove_from_affected
+        remove_reblogs
+        remove_from_hashtags unless @status.distributable?
+        remove_from_public
+        remove_from_media
+        remove_from_direct if status.direct_visibility?
+      else
+        raise Mastodon::RaceConditionError
+      end
+    end
+  end
+
+  private
+
+  def remove_from_followers
+    @account.followers_for_local_distribution.where(id: @account_ids).reorder(nil).find_each do |follower|
+      FeedManager.instance.unpush_from_home(follower, @status)
+    end
+  end
+
+  def remove_from_lists
+    @account.lists_for_local_distribution.where(account_id: @account_ids).select(:id, :account_id).reorder(nil).find_each do |list|
+      FeedManager.instance.unpush_from_list(list, @status)
+    end
+  end
+
+  def remove_from_affected
+    @mentions.map(&:account).select(&:local?).each do |account|
+      redis.publish("timeline:#{account.id}", @payload)
+    end
+  end
+
+  def remove_reblogs
+    @reblogs.each do |reblog|
+      RemoveStatusService.new.call(reblog)
+    end
+  end
+
+  def remove_from_hashtags
+    @account.featured_tags.where(tag_id: @status.tags.pluck(:id)).each do |featured_tag|
+      featured_tag.decrement(@status.id)
+    end
+
+    return unless @status.public_visibility?
+
+    @tags.each do |hashtag|
+      redis.publish("timeline:hashtag:#{hashtag.mb_chars.downcase}", @payload)
+      redis.publish("timeline:hashtag:#{hashtag.mb_chars.downcase}:local", @payload) if @status.local?
+    end
+  end
+
+  def remove_from_public
+    return if @status.public_visibility?
+
+    redis.publish('timeline:public', @payload)
+    if @status.local?
+      redis.publish('timeline:public:local', @payload)
+    else
+      redis.publish('timeline:public:remote', @payload)
+    end
+  end
+
+  def remove_from_media
+    return if @status.public_visibility?
+
+    redis.publish('timeline:public:media', @payload)
+    if @status.local?
+      redis.publish('timeline:public:local:media', @payload)
+    else
+      redis.publish('timeline:public:remote:media', @payload)
+    end
+  end
+
+  def remove_from_direct
+    @mentions.each do |mention|
+      FeedManager.instance.unpush_from_direct(mention.account, @status) if mention.account.local?
+    end
+  end
+
+  def lock_options
+    { redis: Redis.current, key: "distribute:#{@status.id}" }
+  end
+end
diff --git a/app/services/update_status_service.rb b/app/services/update_status_service.rb
new file mode 100644
index 000000000..b393f13bb
--- /dev/null
+++ b/app/services/update_status_service.rb
@@ -0,0 +1,140 @@
+# frozen_string_literal: true
+
+class UpdateStatusService < BaseService
+  include Redisable
+
+  ALLOWED_ATTRIBUTES = %i(
+    spoiler_text
+    text
+    content_type
+    language
+    sensitive
+    visibility
+    media_attachments
+    media_attachment_ids
+    application
+    rate_limit
+  ).freeze
+
+  # Updates the content of an existing status.
+  # @param [Status] status The status to update.
+  # @param [Hash] params The attributes of the new status.
+  # @param [Enumerable] mentions Additional mentions added to the status.
+  # @param [Enumerable] tags New tags for the status to belong to (implicit tags are preserved).
+  def call(status, params, mentions, tags)
+    raise ActiveRecord::RecordNotFound if status.blank? || status.discarded? || status.destroyed?
+    return status if params.blank?
+
+    @status                 = status
+    @account                = @status.account
+    @params                 = params.with_indifferent_access.slice(*ALLOWED_ATTRIBUTES).compact
+    @mentions               = (@status.mentions | (mentions || [])).to_set
+    @tags                   = (tags.nil? ? @status.tags : (tags || [])).to_set
+
+    @params[:text]        ||= ''
+    @params[:edited]      ||= 1 + @status.edited
+
+    update_tags if @status.local?
+    filter_tags
+    update_mentions
+
+    @delete_payload         = Oj.dump(event: :delete, payload: @status.id.to_s)
+    @deleted_tag_ids        = @status.tag_ids - @tags.pluck(:id)
+    @deleted_tag_names      = @status.tags.pluck(:name) - @tags.pluck(:name)
+    @deleted_attachment_ids = @status.media_attachment_ids - (@params[:media_attachment_ids] || @params[:media_attachments]&.pluck(:id) || [])
+    @new_mention_ids        = @mentions.pluck(:id) - @status.mention_ids
+
+    ApplicationRecord.transaction do
+      @status.update!(@params)
+      detach_deleted_tags
+      attach_updated_tags
+    end
+
+    prune_tags
+    prune_attachments
+    reset_status_caches
+
+    SpamCheck.perform(@status)
+    distribute
+
+    @status
+  end
+
+  private
+
+  def prune_attachments
+    RemoveMediaAttachmentsWorker.perform_async(@deleted_attachment_ids) if @deleted_attachment_ids.present?
+  end
+
+  def detach_deleted_tags
+    @status.tags.where(id: @deleted_tag_ids).destroy_all if @deleted_tag_ids.present?
+  end
+
+  def prune_tags
+    @account.featured_tags.where(tag_id: @deleted_tag_ids).each do |featured_tag|
+      featured_tag.decrement(@status.id)
+    end
+
+    if @status.public_visibility?
+      return if @deleted_tag_names.blank?
+
+      @deleted_tag_names.each do |hashtag|
+        redis.publish("timeline:hashtag:#{hashtag.mb_chars.downcase}", @delete_payload)
+        redis.publish("timeline:hashtag:#{hashtag.mb_chars.downcase}:local", @delete_payload) if @status.local?
+      end
+    end
+  end
+
+  def update_tags
+    old_explicit_tags = Tag.matching_name(Extractor.extract_hashtags(@status.text))
+    @tags |= Tag.find_or_create_by_names(Extractor.extract_hashtags(@params[:text]))
+
+    # Preserve implicit tags attached to the original status.
+    # TODO: Let locals remove them from edits.
+    @tags |= @status.tags.where.not(id: old_explicit_tags.select(:id))
+  end
+
+  def filter_tags
+    @tags.select! { |tag| tag =~ /\A(#{Tag::HASHTAG_NAME_RE})\z/i }
+  end
+
+  def update_mentions
+    @params[:text], @mentions = ResolveMentionsService.new.call(@status, text: @params[:text], mentions: @mentions)
+  end
+
+  def attach_updated_tags
+    tag_ids = @status.tag_ids.to_set
+    new_tag_ids = []
+    now = Time.now.utc
+
+    @tags.each do |tag|
+      next if tag_ids.include?(tag.id) || /\A(#{Tag::HASHTAG_NAME_RE})\z/i =~ $LAST_READ_LINE
+
+      @status.tags << tag
+      new_tag_ids << tag.id
+      TrendingTags.record_use!(tag, @account, now) if @status.public_visibility?
+    end
+
+    return unless @status.local? && @status.distributable?
+
+    @account.featured_tags.where(tag_id: new_tag_ids).each do |featured_tag|
+      featured_tag.increment(now)
+    end
+  end
+
+  def reset_status_caches
+    Rails.cache.delete_matched("statuses/#{@status.id}-*")
+    Rails.cache.delete("statuses/#{@status.id}")
+    Rails.cache.delete(@status)
+    redis.zremrangebyscore("spam_check:#{@account.id}", @status.id, @status.id)
+  end
+
+  def distribute
+    LinkCrawlWorker.perform_in(rand(1..30).seconds, @status.id) unless @status.spoiler_text?
+    DistributionWorker.perform_async(@status.id)
+    ActivityPub::DistributionWorker.perform_async(@status.id) if @status.local? && !@status.local_only?
+
+    mentions = @status.active_mentions.includes(:account).where(id: @new_mention_ids, accounts: { domain: nil })
+    mentions.each { |mention| LocalNotificationWorker.perform_async(mention.account.id, mention.id, mention.class.name) }
+  end
+end
diff --git a/app/workers/activitypub/distribution_worker.rb b/app/workers/activitypub/distribution_worker.rb
index e4997ba0e..7e28bc9eb 100644
--- a/app/workers/activitypub/distribution_worker.rb
+++ b/app/workers/activitypub/distribution_worker.rb
@@ -43,7 +43,7 @@ class ActivityPub::DistributionWorker
   end
 
   def payload
-    @payload ||= Oj.dump(serialize_payload(ActivityPub::ActivityPresenter.from_status(@status), ActivityPub::ActivitySerializer, signer: @account))
+    @payload ||= Oj.dump(serialize_payload(ActivityPub::ActivityPresenter.from_status(@status, update: true), ActivityPub::ActivitySerializer, signer: @account))
   end
 
   def relay!
diff --git a/app/workers/activitypub/reply_distribution_worker.rb b/app/workers/activitypub/reply_distribution_worker.rb
index d4d0148ac..eaeb8a8b8 100644
--- a/app/workers/activitypub/reply_distribution_worker.rb
+++ b/app/workers/activitypub/reply_distribution_worker.rb
@@ -29,6 +29,6 @@ class ActivityPub::ReplyDistributionWorker
   end
 
   def payload
-    @payload ||= Oj.dump(serialize_payload(ActivityPub::ActivityPresenter.from_status(@status), ActivityPub::ActivitySerializer, signer: @status.account))
+    @payload ||= Oj.dump(serialize_payload(ActivityPub::ActivityPresenter.from_status(@status, update: true), ActivityPub::ActivitySerializer, signer: @status.account))
   end
 end
diff --git a/app/workers/publish_scheduled_status_worker.rb b/app/workers/publish_scheduled_status_worker.rb
index ce42f7be7..a5166f6a8 100644
--- a/app/workers/publish_scheduled_status_worker.rb
+++ b/app/workers/publish_scheduled_status_worker.rb
@@ -21,6 +21,8 @@ class PublishScheduledStatusWorker
     options.tap do |options_hash|
       options_hash[:application] = Doorkeeper::Application.find(options_hash.delete(:application_id)) if options[:application_id]
       options_hash[:thread]      = Status.find(options_hash.delete(:in_reply_to_id)) if options_hash[:in_reply_to_id]
+      options_hash[:mentions]    = Mention.where(id: options_hash.delete(:mention_ids)) if options_hash[:mention_ids]
+      options_hash[:status]      = Status.find_by(id: options_hash.delete(:status_id)) if options_hash[:status_id]
     end
   end
 end
diff --git a/app/workers/remove_media_attachments_worker.rb b/app/workers/remove_media_attachments_worker.rb
new file mode 100644
index 000000000..d5bac6ab8
--- /dev/null
+++ b/app/workers/remove_media_attachments_worker.rb
@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+class RemoveMediaAttachmentsWorker
+  include Sidekiq::Worker
+
+  def perform(attachment_ids)
+    RemoveMediaAttachmentsService.new.call(attachment_ids)
+  rescue ActiveRecord::RecordNotFound
+    true
+  end
+end
diff --git a/app/workers/revoke_status_worker.rb b/app/workers/revoke_status_worker.rb
new file mode 100644
index 000000000..8cc2b1623
--- /dev/null
+++ b/app/workers/revoke_status_worker.rb
@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+class RevokeStatusWorker
+  include Sidekiq::Worker
+
+  def perform(status_id, account_ids)
+    RevokeStatusService.new.call(Status.find(status_id), account_ids)
+  rescue ActiveRecord::RecordNotFound
+    true
+  end
+end