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- "use strict";
- Object.defineProperty(exports, "__esModule", { value: true });
- exports.queryByRegExp = exports.snowflake = void 0;
- const Twitter = require("twitter");
- const loggers_1 = require("./loggers");
- const utils_1 = require("./utils");
- const TWITTER_EPOCH = 1288834974657;
- const snowflake = (epoch) => Number.isNaN(epoch) ? undefined :
- utils_1.BigNumOps.lShift(String(epoch - 1 - TWITTER_EPOCH), 22);
- exports.snowflake = snowflake;
- const logger = loggers_1.getLogger('twitter');
- let queryByRegExp = (username, regexp, queryThreshold, until) => Promise.resolve(null);
- exports.queryByRegExp = queryByRegExp;
- class default_1 {
- constructor(opt) {
- this.lastQueries = {};
- this.queryUser = (username) => this.client.get('users/show', { screen_name: username })
- .then((user) => user.screen_name);
- this.queryTimelineReverse = (conf) => {
- if (!conf.since)
- return this.queryTimeline(conf);
- const count = conf.count;
- const maxID = conf.until;
- conf.count = undefined;
- const until = () => utils_1.BigNumOps.min(maxID, utils_1.BigNumOps.plus(conf.since, String(7 * 24 * 3600 * 1000 * Math.pow(2, 22))));
- conf.until = until();
- const promise = (tweets) => this.queryTimeline(conf).then(newTweets => {
- tweets = newTweets.concat(tweets);
- conf.since = conf.until;
- conf.until = until();
- if (tweets.length >= count ||
- utils_1.BigNumOps.compare(conf.since, conf.until) >= 0) {
- return tweets.slice(-count);
- }
- return promise(tweets);
- });
- return promise([]);
- };
- this.queryTimeline = ({ username, count, since, until, noreps, norts }) => {
- username = username.replace(/^@?(.*)$/, '@$1');
- logger.info(`querying timeline of ${username} with config: ${JSON.stringify(Object.assign(Object.assign(Object.assign(Object.assign(Object.assign({}, (count && { count })), (since && { since })), (until && { until })), (noreps && { noreps })), (norts && { norts })))}`);
- const fetchTimeline = (config = {
- screen_name: username.slice(1),
- trim_user: true,
- exclude_replies: noreps !== null && noreps !== void 0 ? noreps : true,
- include_rts: !(norts !== null && norts !== void 0 ? norts : false),
- since_id: since,
- max_id: until,
- tweet_mode: 'extended',
- }, tweets = []) => this.client.get('statuses/user_timeline', config)
- .then((newTweets) => {
- if (newTweets.length) {
- logger.debug(`fetched tweets: ${JSON.stringify(newTweets)}`);
- config.max_id = utils_1.BigNumOps.plus('-1', newTweets[newTweets.length - 1].id_str);
- logger.info(`timeline query of ${username} yielded ${newTweets.length} new tweets, next query will start at offset ${config.max_id}`);
- tweets.push(...newTweets);
- }
- if (!newTweets.length || count === undefined || tweets.length >= count) {
- logger.info(`timeline query of ${username} finished successfully, ${tweets.length} tweets have been fetched`);
- return tweets.slice(0, count);
- }
- return fetchTimeline(config, tweets);
- });
- return fetchTimeline();
- };
- this.client = new Twitter({
- consumer_key: opt.consumerKey,
- consumer_secret: opt.consumerSecret,
- access_token_key: opt.accessTokenKey,
- access_token_secret: opt.accessTokenSecret,
- });
- exports.queryByRegExp = (username, regexp, queryThreshold, until) => {
- logger.info(`searching timeline of @${username} for matches of ${regexp}...`);
- const normalizedUsername = username.toLowerCase().replace(/^@/, '');
- const queryKey = `${normalizedUsername}:${regexp.toString()}`;
- const isOld = (then, threshold = 360) => {
- if (!then)
- return true;
- return utils_1.BigNumOps.compare(exports.snowflake(Date.now() - threshold * 1000), then) >= 0;
- };
- if (queryKey in this.lastQueries && !isOld(this.lastQueries[queryKey].id)) {
- const { match, id } = this.lastQueries[queryKey];
- logger.info(`found match ${JSON.stringify(match)} from cached tweet of id ${id}`);
- return Promise.resolve(match);
- }
- return this.queryTimeline({ username, norts: true, until })
- .then(tweets => {
- const found = tweets.find(tweet => regexp.test(tweet.full_text));
- if (found) {
- const match = regexp.exec(found.full_text);
- this.lastQueries[queryKey] = { match, id: found.id_str };
- logger.info(`found match ${JSON.stringify(match)} in tweet of id ${found.id_str} from timeline`);
- return match;
- }
- const last = tweets.slice(-1)[0].id_str;
- if (isOld(last, queryThreshold))
- return null;
- return exports.queryByRegExp(username, regexp, queryThreshold, last);
- });
- };
- }
- }
- exports.default = default_1;
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