diff options
Diffstat (limited to 'streaming')
| -rw-r--r-- | streaming/index.js | 90 |
1 files changed, 86 insertions, 4 deletions
diff --git a/streaming/index.js b/streaming/index.js index 6935c4764..792ec5a44 100644 --- a/streaming/index.js +++ b/streaming/index.js @@ -12,6 +12,7 @@ const url = require('url'); const uuid = require('uuid'); const fs = require('fs'); const WebSocket = require('ws'); +const { JSDOM } = require('jsdom'); const env = process.env.NODE_ENV || 'development'; const alwaysRequireAuth = process.env.LIMITED_FEDERATION_MODE === 'true' || process.env.WHITELIST_MODE === 'true' || process.env.AUTHORIZED_FETCH === 'true'; @@ -503,6 +504,9 @@ const startWorker = async (workerId) => { if (event === 'kill') { log.verbose(req.requestId, `Closing connection for ${req.accountId} due to expired access token`); eventHandlers.onKill(); + } else if (event === 'filters_changed') { + log.verbose(req.requestId, `Invalidating filters cache for ${req.accountId}`); + req.cachedFilters = null; } }; }; @@ -512,7 +516,8 @@ const startWorker = async (workerId) => { * @param {any} res */ const subscribeHttpToSystemChannel = (req, res) => { - const systemChannelId = `timeline:access_token:${req.accessTokenId}`; + const accessTokenChannelId = `timeline:access_token:${req.accessTokenId}`; + const systemChannelId = `timeline:system:${req.accountId}`; const listener = createSystemMessageListener(req, { @@ -523,9 +528,11 @@ const startWorker = async (workerId) => { }); res.on('close', () => { + unsubscribe(`${redisPrefix}${accessTokenChannelId}`, listener); unsubscribe(`${redisPrefix}${systemChannelId}`, listener); }); + subscribe(`${redisPrefix}${accessTokenChannelId}`, listener); subscribe(`${redisPrefix}${systemChannelId}`, listener); }; @@ -674,17 +681,84 @@ const startWorker = async (workerId) => { queries.push(client.query('SELECT 1 FROM account_domain_blocks WHERE account_id = $1 AND domain = $2', [req.accountId, accountDomain])); } + if (!unpackedPayload.filter_results && !req.cachedFilters) { + queries.push(client.query('SELECT filter.id AS id, filter.phrase AS title, filter.context AS context, filter.expires_at AS expires_at, filter.action AS filter_action, keyword.keyword AS keyword, keyword.whole_word AS whole_word FROM custom_filter_keywords keyword JOIN custom_filters filter ON keyword.custom_filter_id = filter.id WHERE filter.account_id = $1 AND filter.expires_at IS NULL OR filter.expires_at > NOW()', [req.accountId])); + } + Promise.all(queries).then(values => { done(); - if (values[0].rows.length > 0 || (values.length > 1 && values[1].rows.length > 0)) { + if (values[0].rows.length > 0 || (accountDomain && values[1].rows.length > 0)) { return; } + if (!unpackedPayload.filter_results && !req.cachedFilters) { + const filterRows = values[accountDomain ? 2 : 1].rows; + + req.cachedFilters = filterRows.reduce((cache, row) => { + if (cache[row.id]) { + cache[row.id].keywords.push([row.keyword, row.whole_word]); + } else { + cache[row.id] = { + keywords: [[row.keyword, row.whole_word]], + expires_at: row.expires_at, + repr: { + id: row.id, + title: row.title, + context: row.context, + expires_at: row.expires_at, + filter_action: row.filter_action, + }, + }; + } + + return cache; + }, {}); + + Object.keys(req.cachedFilters).forEach((key) => { + req.cachedFilters[key].regexp = new RegExp(req.cachedFilters[key].keywords.map(([keyword, whole_word]) => { + let expr = keyword.replace(/[.*+?^${}()|[\]\\]/g, '\\$&');; + + if (whole_word) { + if (/^[\w]/.test(expr)) { + expr = `\\b${expr}`; + } + + if (/[\w]$/.test(expr)) { + expr = `${expr}\\b`; + } + } + + return expr; + }).join('|'), 'i'); + }); + } + + // Check filters + if (req.cachedFilters && !unpackedPayload.filter_results) { + const status = unpackedPayload; + const searchContent = ([status.spoiler_text || '', status.content].concat((status.poll && status.poll.options) ? status.poll.options.map(option => option.title) : [])).concat(status.media_attachments.map(att => att.description)).join('\n\n').replace(/<br\s*\/?>/g, '\n').replace(/<\/p><p>/g, '\n\n'); + const searchIndex = JSDOM.fragment(searchContent).textContent; + + const now = new Date(); + payload.filter_results = []; + Object.values(req.cachedFilters).forEach((cachedFilter) => { + if ((cachedFilter.expires_at === null || cachedFilter.expires_at > now)) { + const keyword_matches = searchIndex.match(cachedFilter.regexp); + if (keyword_matches) { + payload.filter_results.push({ + filter: cachedFilter.repr, + keyword_matches, + }); + } + } + }); + } + transmit(); }).catch(err => { - done(); log.error(err); + done(); }); }); }; @@ -1009,7 +1083,8 @@ const startWorker = async (workerId) => { * @param {WebSocketSession} session */ const subscribeWebsocketToSystemChannel = ({ socket, request, subscriptions }) => { - const systemChannelId = `timeline:access_token:${request.accessTokenId}`; + const accessTokenChannelId = `timeline:access_token:${request.accessTokenId}`; + const systemChannelId = `timeline:system:${request.accountId}`; const listener = createSystemMessageListener(request, { @@ -1019,8 +1094,15 @@ const startWorker = async (workerId) => { }); + subscribe(`${redisPrefix}${accessTokenChannelId}`, listener); subscribe(`${redisPrefix}${systemChannelId}`, listener); + subscriptions[accessTokenChannelId] = { + listener, + stopHeartbeat: () => { + }, + }; + subscriptions[systemChannelId] = { listener, stopHeartbeat: () => { |