[Glitch] Revamp post filtering system

Port front-end changes from 02851848e964675bb59919fa5fd1bdee2c1c29db to glitch-soc

Signed-off-by: Claire <claire.github-309c@sitedethib.com>

11 files changed, 95 insertions, 163 deletions

diff --git a/app/javascript/flavours/glitch/actions/filters.js b/app/javascript/flavours/glitch/actions/filters.js
deleted file mode 100644
index 050b30322..000000000
--- a/app/javascript/flavours/glitch/actions/filters.js
+++ /dev/null
@@ -1,26 +0,0 @@
-import api from 'flavours/glitch/util/api';
-
-export const FILTERS_FETCH_REQUEST = 'FILTERS_FETCH_REQUEST';
-export const FILTERS_FETCH_SUCCESS = 'FILTERS_FETCH_SUCCESS';
-export const FILTERS_FETCH_FAIL    = 'FILTERS_FETCH_FAIL';
-
-export const fetchFilters = () => (dispatch, getState) => {
-  dispatch({
-    type: FILTERS_FETCH_REQUEST,
-    skipLoading: true,
-  });
-
-  api(getState)
-    .get('/api/v1/filters')
-    .then(({ data }) => dispatch({
-      type: FILTERS_FETCH_SUCCESS,
-      filters: data,
-      skipLoading: true,
-    }))
-    .catch(err => dispatch({
-      type: FILTERS_FETCH_FAIL,
-      err,
-      skipLoading: true,
-      skipAlert: true,
-    }));
-};
diff --git a/app/javascript/flavours/glitch/actions/importer/index.js b/app/javascript/flavours/glitch/actions/importer/index.js
index ec41fea6e..94d133b5f 100644
--- a/app/javascript/flavours/glitch/actions/importer/index.js
+++ b/app/javascript/flavours/glitch/actions/importer/index.js
@@ -5,6 +5,7 @@ export const ACCOUNTS_IMPORT = 'ACCOUNTS_IMPORT';
 export const STATUS_IMPORT   = 'STATUS_IMPORT';
 export const STATUSES_IMPORT = 'STATUSES_IMPORT';
 export const POLLS_IMPORT    = 'POLLS_IMPORT';
+export const FILTERS_IMPORT  = 'FILTERS_IMPORT';
 
 function pushUnique(array, object) {
   if (array.every(element => element.id !== object.id)) {
@@ -28,6 +29,10 @@ export function importStatuses(statuses) {
   return { type: STATUSES_IMPORT, statuses };
 }
 
+export function importFilters(filters) {
+  return { type: FILTERS_IMPORT, filters };
+}
+
 export function importPolls(polls) {
   return { type: POLLS_IMPORT, polls };
 }
@@ -61,11 +66,16 @@ export function importFetchedStatuses(statuses) {
     const accounts = [];
     const normalStatuses = [];
     const polls = [];
+    const filters = [];
 
     function processStatus(status) {
       pushUnique(normalStatuses, normalizeStatus(status, getState().getIn(['statuses', status.id]), getState().get('local_settings')));
       pushUnique(accounts, status.account);
 
+      if (status.filtered) {
+        status.filtered.forEach(result => pushUnique(filters, result.filter));
+      }
+
       if (status.reblog && status.reblog.id) {
         processStatus(status.reblog);
       }
@@ -80,6 +90,7 @@ export function importFetchedStatuses(statuses) {
     dispatch(importPolls(polls));
     dispatch(importFetchedAccounts(accounts));
     dispatch(importStatuses(normalStatuses));
+    dispatch(importFilters(filters));
   };
 }
 
diff --git a/app/javascript/flavours/glitch/actions/importer/normalizer.js b/app/javascript/flavours/glitch/actions/importer/normalizer.js
index c6acdbdbb..9950a720b 100644
--- a/app/javascript/flavours/glitch/actions/importer/normalizer.js
+++ b/app/javascript/flavours/glitch/actions/importer/normalizer.js
@@ -42,6 +42,14 @@ export function normalizeAccount(account) {
   return account;
 }
 
+export function normalizeFilterResult(result) {
+  const normalResult = { ...result };
+
+  normalResult.filter = normalResult.filter.id;
+
+  return normalResult;
+}
+
 export function normalizeStatus(status, normalOldStatus, settings) {
   const normalStatus   = { ...status };
   normalStatus.account = status.account.id;
@@ -54,6 +62,10 @@ export function normalizeStatus(status, normalOldStatus, settings) {
     normalStatus.poll = status.poll.id;
   }
 
+  if (status.filtered) {
+    normalStatus.filtered = status.filtered.map(normalizeFilterResult);
+  }
+
   // Only calculate these values when status first encountered and
   // when the underlying values change. Otherwise keep the ones
   // already in the reducer
diff --git a/app/javascript/flavours/glitch/actions/notifications.js b/app/javascript/flavours/glitch/actions/notifications.js
index 63c1fe038..ae3ee1a4c 100644
--- a/app/javascript/flavours/glitch/actions/notifications.js
+++ b/app/javascript/flavours/glitch/actions/notifications.js
@@ -12,10 +12,8 @@ import { saveSettings } from './settings';
 import { defineMessages } from 'react-intl';
 import { List as ImmutableList } from 'immutable';
 import { unescapeHTML } from 'flavours/glitch/util/html';
-import { getFiltersRegex } from 'flavours/glitch/selectors';
 import { usePendingItems as preferPendingItems } from 'flavours/glitch/util/initial_state';
 import compareId from 'flavours/glitch/util/compare_id';
-import { searchTextFromRawStatus } from 'flavours/glitch/actions/importer/normalizer';
 import { requestNotificationPermission } from 'flavours/glitch/util/notifications';
 
 export const NOTIFICATIONS_UPDATE = 'NOTIFICATIONS_UPDATE';
@@ -74,20 +72,17 @@ export function updateNotifications(notification, intlMessages, intlLocale) {
     const showInColumn = activeFilter === 'all' ? getState().getIn(['settings', 'notifications', 'shows', notification.type], true) : activeFilter === notification.type;
     const showAlert    = getState().getIn(['settings', 'notifications', 'alerts', notification.type], true);
     const playSound    = getState().getIn(['settings', 'notifications', 'sounds', notification.type], true);
-    const filters      = getFiltersRegex(getState(), { contextType: 'notifications' });
 
     let filtered = false;
 
-    if (['mention', 'status'].includes(notification.type)) {
-      const dropRegex   = filters[0];
-      const regex       = filters[1];
-      const searchIndex = searchTextFromRawStatus(notification.status);
+    if (['mention', 'status'].includes(notification.type) && notification.status.filtered) {
+      const filters = notification.status.filtered.filter(result => result.filter.context.includes('notifications'));
 
-      if (dropRegex && dropRegex.test(searchIndex)) {
+      if (filters.some(result => result.filter.filter_action === 'hide')) {
         return;
       }
 
-      filtered = regex && regex.test(searchIndex);
+      filtered = filters.length > 0;
     }
 
     if (['follow_request'].includes(notification.type)) {
diff --git a/app/javascript/flavours/glitch/actions/streaming.js b/app/javascript/flavours/glitch/actions/streaming.js
index 90d6a0231..375728cb5 100644
--- a/app/javascript/flavours/glitch/actions/streaming.js
+++ b/app/javascript/flavours/glitch/actions/streaming.js
@@ -21,7 +21,6 @@ import {
   updateReaction as updateAnnouncementsReaction,
   deleteAnnouncement,
 } from './announcements';
-import { fetchFilters } from './filters';
 import { getLocale } from 'mastodon/locales';
 
 const { messages } = getLocale();
@@ -97,9 +96,6 @@ export const connectTimelineStream = (timelineId, channelName, params = {}, opti
         case 'conversation':
           dispatch(updateConversations(JSON.parse(data.payload)));
           break;
-        case 'filters_changed':
-          dispatch(fetchFilters());
-          break;
         case 'announcement':
           dispatch(updateAnnouncements(JSON.parse(data.payload)));
           break;
diff --git a/app/javascript/flavours/glitch/components/status.js b/app/javascript/flavours/glitch/components/status.js
index b2d9acebc..4ba602def 100644
--- a/app/javascript/flavours/glitch/components/status.js
+++ b/app/javascript/flavours/glitch/components/status.js
@@ -455,8 +455,8 @@ class Status extends ImmutablePureComponent {
   }
 
   handleUnfilterClick = e => {
-    const { onUnfilter, status } = this.props;
-    onUnfilter(status.get('reblog') ? status.get('reblog') : status, () => this.setState({ forceFilter: false }));
+    this.setState({ forceFilter: false });
+    e.preventDefault();
   }
 
   handleFilterClick = () => {
@@ -557,8 +557,8 @@ class Status extends ImmutablePureComponent {
       );
     }
 
-    const filtered = (status.get('filtered') || status.getIn(['reblog', 'filtered'])) && settings.get('filtering_behavior') !== 'content_warning';
-    if (forceFilter === undefined ? filtered : forceFilter) {
+    const matchedFilters = status.get('filtered') || status.getIn(['reblog', 'filtered']);
+    if (this.state.forceFilter === undefined ? matchedFilters : this.state.forceFilter) {
       const minHandlers = this.props.muted ? {} : {
         moveUp: this.handleHotkeyMoveUp,
         moveDown: this.handleHotkeyMoveDown,
@@ -567,13 +567,11 @@ class Status extends ImmutablePureComponent {
       return (
         <HotKeys handlers={minHandlers}>
           <div className='status__wrapper status__wrapper--filtered focusable' tabIndex='0' ref={this.handleRef}>
-            <FormattedMessage id='status.filtered' defaultMessage='Filtered' />
-            {settings.get('filtering_behavior') !== 'upstream' && ' '}
-            {settings.get('filtering_behavior') !== 'upstream' && (
-              <button className='status__wrapper--filtered__button' onClick={this.handleUnfilterClick}>
-                <FormattedMessage id='status.show_filter_reason' defaultMessage='(show why)' />
-              </button>
-            )}
+            <FormattedMessage id='status.filtered' defaultMessage='Filtered' />: {matchedFilters.join(', ')}.
+            {' '}
+            <button className='status__wrapper--filtered__button' onClick={this.handleUnfilterClick}>
+              <FormattedMessage id='status.show_filter_reason' defaultMessage='Show anyway' />
+            </button>
           </div>
         </HotKeys>
       );
@@ -789,11 +787,11 @@ class Status extends ImmutablePureComponent {
 
           {!isCollapsed || !(muted || !settings.getIn(['collapsed', 'show_action_bar'])) ? (
             <StatusActionBar
-              {...other}
               status={status}
               account={status.get('account')}
               showReplyCount={settings.get('show_reply_count')}
-              onFilter={this.handleFilterClick}
+              onFilter={matchedFilters && this.handleFilterClick}
+              {...other}
             />
           ) : null}
           {notification ? (
diff --git a/app/javascript/flavours/glitch/components/status_action_bar.js b/app/javascript/flavours/glitch/components/status_action_bar.js
index 667afac5a..6581bc9ea 100644
--- a/app/javascript/flavours/glitch/components/status_action_bar.js
+++ b/app/javascript/flavours/glitch/components/status_action_bar.js
@@ -271,10 +271,6 @@ class StatusActionBar extends ImmutablePureComponent {
       <IconButton className='status__action-bar-button' title={intl.formatMessage(messages.share)} icon='share-alt' onClick={this.handleShareClick} />
     );
 
-    const filterButton = status.get('filtered') && (
-      <IconButton className='status__action-bar-button' title={intl.formatMessage(messages.hide)} icon='eye' onClick={this.handleFilterClick} />
-    );
-
     let replyButton = (
       <IconButton
         className='status__action-bar-button'
@@ -309,6 +305,10 @@ class StatusActionBar extends ImmutablePureComponent {
       reblogTitle = intl.formatMessage(messages.cannot_reblog);
     }
 
+    const filterButton = this.props.onFilter && (
+      <IconButton className='status__action-bar-button' title={intl.formatMessage(messages.hide)} icon='eye' onClick={this.handleFilterClick} />
+    );
+
     return (
       <div className='status__action-bar'>
         {replyButton}
@@ -316,6 +316,7 @@ class StatusActionBar extends ImmutablePureComponent {
         <IconButton className='status__action-bar-button star-icon' animate active={status.get('favourited')} pressed={status.get('favourited')} title={intl.formatMessage(messages.favourite)} icon='star' onClick={this.handleFavouriteClick} />
         {shareButton}
         <IconButton className='status__action-bar-button bookmark-icon' disabled={anonymousAccess} active={status.get('bookmarked')} pressed={status.get('bookmarked')} title={intl.formatMessage(messages.bookmark)} icon='bookmark' onClick={this.handleBookmarkClick} />
+
         {filterButton}
 
         <div className='status__action-bar-dropdown'>
diff --git a/app/javascript/flavours/glitch/containers/status_container.js b/app/javascript/flavours/glitch/containers/status_container.js
index 6c8f261e4..19781745b 100644
--- a/app/javascript/flavours/glitch/containers/status_container.js
+++ b/app/javascript/flavours/glitch/containers/status_container.js
@@ -1,7 +1,7 @@
 import { connect } from 'react-redux';
 import Status from 'flavours/glitch/components/status';
 import { List as ImmutableList } from 'immutable';
-import { makeGetStatus, regexFromFilters, toServerSideType } from 'flavours/glitch/selectors';
+import { makeGetStatus } from 'flavours/glitch/selectors';
 import {
   replyCompose,
   mentionCompose,
@@ -201,48 +201,6 @@ const mapDispatchToProps = (dispatch, { intl, contextType }) => ({
     dispatch(initBlockModal(account));
   },
 
-  onUnfilter (status, onConfirm) {
-    dispatch((_, getState) => {
-      let state = getState();
-      const serverSideType = toServerSideType(contextType);
-      const enabledFilters = state.get('filters', ImmutableList()).filter(filter => filter.get('context').includes(serverSideType) && (filter.get('expires_at') === null || Date.parse(filter.get('expires_at')) > (new Date()))).toArray();
-      const searchIndex = status.get('search_index');
-      const matchingFilters = enabledFilters.filter(filter => regexFromFilters([filter]).test(searchIndex));
-      dispatch(openModal('CONFIRM', {
-        message: [
-          <FormattedMessage id='confirmations.unfilter' defaultMessage='Information about this filtered toot' />,
-          <div className='filtered-status-info'>
-            <Spoilers spoilerText={intl.formatMessage(messages.author)}>
-              <AccountContainer id={status.getIn(['account', 'id'])} />
-            </Spoilers>
-            <Spoilers spoilerText={intl.formatMessage(messages.matchingFilters, {count: matchingFilters.size})}>
-              <ul>
-                {matchingFilters.map(filter => (
-                  <li>
-                    {filter.get('phrase')}
-                    {!!filterEditLink && ' '}
-                    {!!filterEditLink && (
-                      <a
-                        target='_blank'
-                        className='filtered-status-edit-link'
-                        title={intl.formatMessage(messages.editFilter)}
-                        href={filterEditLink(filter.get('id'))}
-                      >
-                        <Icon id='pencil' />
-                      </a>
-                    )}
-                  </li>
-                ))}
-              </ul>
-            </Spoilers>
-          </div>
-        ],
-        confirm: intl.formatMessage(messages.unfilterConfirm),
-        onConfirm: onConfirm,
-      }));
-    });
-  },
-
   onReport (status) {
     dispatch(initReport(status.get('account'), status));
   },
diff --git a/app/javascript/flavours/glitch/features/ui/index.js b/app/javascript/flavours/glitch/features/ui/index.js
index 099ffc69c..2be6d9478 100644
--- a/app/javascript/flavours/glitch/features/ui/index.js
+++ b/app/javascript/flavours/glitch/features/ui/index.js
@@ -10,7 +10,6 @@ import { debounce } from 'lodash';
 import { uploadCompose, resetCompose, changeComposeSpoilerness } from 'flavours/glitch/actions/compose';
 import { expandHomeTimeline } from 'flavours/glitch/actions/timelines';
 import { expandNotifications, notificationsSetVisibility } from 'flavours/glitch/actions/notifications';
-import { fetchFilters } from 'flavours/glitch/actions/filters';
 import { fetchRules } from 'flavours/glitch/actions/rules';
 import { clearHeight } from 'flavours/glitch/actions/height_cache';
 import { synchronouslySubmitMarkers, submitMarkers, fetchMarkers } from 'flavours/glitch/actions/markers';
@@ -402,7 +401,7 @@ class UI extends React.Component {
     this.props.dispatch(fetchMarkers());
     this.props.dispatch(expandHomeTimeline());
     this.props.dispatch(expandNotifications());
-    setTimeout(() => this.props.dispatch(fetchFilters()), 500);
+
     setTimeout(() => this.props.dispatch(fetchRules()), 3000);
   }
 
diff --git a/app/javascript/flavours/glitch/reducers/filters.js b/app/javascript/flavours/glitch/reducers/filters.js
index 33f0c6732..14b704027 100644
--- a/app/javascript/flavours/glitch/reducers/filters.js
+++ b/app/javascript/flavours/glitch/reducers/filters.js
@@ -1,10 +1,34 @@
-import { FILTERS_FETCH_SUCCESS } from '../actions/filters';
-import { List as ImmutableList, fromJS } from 'immutable';
+import { FILTERS_IMPORT } from '../actions/importer';
+import { Map as ImmutableMap, is, fromJS } from 'immutable';
 
-export default function filters(state = ImmutableList(), action) {
+const normalizeFilter = (state, filter) => {
+  const normalizedFilter = fromJS({
+    id: filter.id,
+    title: filter.title,
+    context: filter.context,
+    filter_action: filter.filter_action,
+    expires_at: filter.expires_at ? Date.parse(filter.expires_at) : null,
+  });
+
+  if (is(state.get(filter.id), normalizedFilter)) {
+    return state;
+  } else {
+    return state.set(filter.id, normalizedFilter);
+  }
+};
+
+const normalizeFilters = (state, filters) => {
+  filters.forEach(filter => {
+    state = normalizeFilter(state, filter);
+  });
+
+  return state;
+};
+
+export default function filters(state = ImmutableMap(), action) {
   switch(action.type) {
-  case FILTERS_FETCH_SUCCESS:
-    return fromJS(action.filters);
+  case FILTERS_IMPORT:
+    return normalizeFilters(state, action.filters);
   default:
     return state;
   }
diff --git a/app/javascript/flavours/glitch/selectors/index.js b/app/javascript/flavours/glitch/selectors/index.js
index d9aa8f140..63b10167c 100644
--- a/app/javascript/flavours/glitch/selectors/index.js
+++ b/app/javascript/flavours/glitch/selectors/index.js
@@ -41,15 +41,15 @@ export const toServerSideType = columnType => {
 const escapeRegExp = string =>
   string.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'); // $& means the whole matched string
 
-export const regexFromFilters = filters => {
-  if (filters.size === 0) {
+const regexFromKeywords = keywords => {
+  if (keywords.size === 0) {
     return null;
   }
 
-  return new RegExp(filters.map(filter => {
-    let expr = escapeRegExp(filter.get('phrase'));
+  return new RegExp(keywords.map(keyword_filter => {
+    let expr = escapeRegExp(keyword_filter.get('keyword'));
 
-    if (filter.get('whole_word')) {
+    if (keyword_filter.get('whole_word')) {
       if (/^[\w]/.test(expr)) {
         expr = `\\b${expr}`;
       }
@@ -63,27 +63,15 @@ export const regexFromFilters = filters => {
   }).join('|'), 'i');
 };
 
-// Memoize the filter regexps for each valid server contextType
-const makeGetFiltersRegex = () => {
-  let memo = {};
+const getFilters = (state, { contextType }) => {
+  if (!contextType) return null;
 
-  return (state, { contextType }) => {
-    if (!contextType) return ImmutableList();
+  const serverSideType = toServerSideType(contextType);
+  const now = new Date();
 
-    const serverSideType = toServerSideType(contextType);
-    const filters = state.get('filters', ImmutableList()).filter(filter => filter.get('context').includes(serverSideType) && (filter.get('expires_at') === null || Date.parse(filter.get('expires_at')) > (new Date())));
-
-    if (!memo[serverSideType] || !is(memo[serverSideType].filters, filters)) {
-      const dropRegex = regexFromFilters(filters.filter(filter => filter.get('irreversible')));
-      const regex = regexFromFilters(filters);
-      memo[serverSideType] = { filters: filters, results: [dropRegex, regex] };
-    }
-    return memo[serverSideType].results;
-  };
+  return state.get('filters').filter((filter) => filter.get('context').includes(serverSideType) && (filter.get('expires_at') === null || filter.get('expires_at') > now));
 };
 
-export const getFiltersRegex = makeGetFiltersRegex();
-
 export const makeGetStatus = () => {
   return createSelector(
     [
@@ -91,56 +79,32 @@ export const makeGetStatus = () => {
       (state, { id }) => state.getIn(['statuses', state.getIn(['statuses', id, 'reblog'])]),
       (state, { id }) => state.getIn(['accounts', state.getIn(['statuses', id, 'account'])]),
       (state, { id }) => state.getIn(['accounts', state.getIn(['statuses', state.getIn(['statuses', id, 'reblog']), 'account'])]),
-      (state, _) => state.getIn(['local_settings', 'filtering_behavior']),
-      (state, _) => state.get('filters', ImmutableList()),
-      (_, { contextType }) => contextType,
-      getFiltersRegex,
+      getFilters,
     ],
 
-    (statusBase, statusReblog, accountBase, accountReblog, filteringBehavior, filters, contextType, filtersRegex) => {
+    (statusBase, statusReblog, accountBase, accountReblog, filters) => {
       if (!statusBase) {
         return null;
       }
 
-      const dropRegex = (accountReblog || accountBase).get('id') !== me && filtersRegex[0];
-
-      if (dropRegex && dropRegex.test(statusBase.get('reblog') ? statusReblog.get('search_index') : statusBase.get('search_index'))) {
-        return null;
-      }
-
-      const regex  = (accountReblog || accountBase).get('id') !== me && filtersRegex[1];
       let filtered = false;
+      if ((accountReblog || accountBase).get('id') !== me && filters) {
+        let filterResults = statusReblog?.get('filtered') || statusBase.get('filtered') || ImmutableList();
+        if (filterResults.some((result) => filters.getIn([result.get('filter'), 'filter_action']) === 'hide')) {
+          return null;
+        }
+        if (!filterResults.isEmpty()) {
+          filtered = filterResults.map(result => filters.getIn([result.get('filter'), 'title']));
+        }
+      }
 
       if (statusReblog) {
-        filtered     = regex && regex.test(statusReblog.get('search_index'));
         statusReblog = statusReblog.set('account', accountReblog);
         statusReblog = statusReblog.set('filtered', filtered);
       } else {
         statusReblog = null;
       }
 
-      filtered = filtered || regex && regex.test(statusBase.get('search_index'));
-
-      if (filtered && filteringBehavior === 'drop') {
-        return null;
-      } else if (filtered && filteringBehavior === 'content_warning') {
-        let spoilerText = (statusReblog || statusBase).get('spoiler_text', '');
-        const searchIndex = (statusReblog || statusBase).get('search_index');
-        const serverSideType = toServerSideType(contextType);
-        const enabledFilters = filters.filter(filter => filter.get('context').includes(serverSideType) && (filter.get('expires_at') === null || Date.parse(filter.get('expires_at')) > (new Date()))).toArray();
-        const matchingFilters = enabledFilters.filter(filter => {
-          const regexp = regexFromFilters([filter]);
-          return regexp.test(searchIndex) && !regexp.test(spoilerText);
-        });
-        if (statusReblog) {
-          statusReblog = statusReblog.set('spoiler_text', matchingFilters.map(filter => filter.get('phrase')).concat([spoilerText]).filter(cw => !!cw).join(', '));
-          statusReblog = statusReblog.update('spoilerHtml', '', spoilerText => matchingFilters.map(filter => escapeTextContentForBrowser(filter.get('phrase'))).concat([spoilerText]).filter(cw => !!cw).join(', '));
-        } else {
-          statusBase = statusBase.set('spoiler_text', matchingFilters.map(filter => filter.get('phrase')).concat([spoilerText]).filter(cw => !!cw).join(', '));
-          statusBase = statusBase.update('spoilerHtml', '', spoilerText => matchingFilters.map(filter => escapeTextContentForBrowser(filter.get('phrase'))).concat([spoilerText]).filter(cw => !!cw).join(', '));
-        }
-      }
-
       return statusBase.withMutations(map => {
         map.set('reblog', statusReblog);
         map.set('account', accountBase);