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node-red-nodes/social/twitter/27-twitter.js

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module.exports = function(RED) {
"use strict";
var Ntwitter = require('twitter-ng');
var OAuth= require('oauth').OAuth;
var request = require('request');
var twitterRateTimeout;
function TwitterNode(n) {
RED.nodes.createNode(this,n);
this.screen_name = n.screen_name;
}
RED.nodes.registerType("twitter-credentials",TwitterNode,{
credentials: {
screen_name: {type:"text"},
access_token: {type: "password"},
access_token_secret: {type:"password"}
}
});
/**
* Populate msg.location based on data found in msg.tweet.
*/
function addLocationToTweet(msg) {
if (msg.tweet) {
if (msg.tweet.geo) { // if geo is set, always set location from geo
if (msg.tweet.geo.coordinates && msg.tweet.geo.coordinates.length === 2) {
if (!msg.location) { msg.location = {}; }
// coordinates[0] is lat, coordinates[1] is lon
msg.location.lat = msg.tweet.geo.coordinates[0];
msg.location.lon = msg.tweet.geo.coordinates[1];
msg.location.icon = "twitter";
}
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}
else if (msg.tweet.coordinates) { // otherwise attempt go get it from coordinates
if (msg.tweet.coordinates.coordinates && msg.tweet.coordinates.coordinates.length === 2) {
if (!msg.location) { msg.location = {}; }
// WARNING! coordinates[1] is lat, coordinates[0] is lon!!!
msg.location.lat = msg.tweet.coordinates.coordinates[1];
msg.location.lon = msg.tweet.coordinates.coordinates[0];
msg.location.icon = "twitter";
}
} // if none of these found then just do nothing
} // if no msg.tweet then just do nothing
}
function TwitterInNode(n) {
RED.nodes.createNode(this,n);
this.active = true;
this.user = n.user;
//this.tags = n.tags.replace(/ /g,'');
this.tags = n.tags;
this.twitter = n.twitter;
this.topic = n.topic||"tweets";
this.twitterConfig = RED.nodes.getNode(this.twitter);
var credentials = RED.nodes.getCredentials(this.twitter);
if (credentials && credentials.screen_name == this.twitterConfig.screen_name) {
var twit = new Ntwitter({
consumer_key: "OKjYEd1ef2bfFolV25G5nQ",
consumer_secret: "meRsltCktVMUI8gmggpXett7WBLd1k0qidYazoML6g",
access_token_key: credentials.access_token,
access_token_secret: credentials.access_token_secret
});
//setInterval(function() {
// twit.get("/application/rate_limit_status.json",null,function(err,cb) {
// console.log("direct_messages:",cb["resources"]["direct_messages"]);
// });
//
//},10000);
var node = this;
if (this.user === "user") {
node.poll_ids = [];
node.since_ids = {};
node.status({});
var users = node.tags.split(",");
if (users === '') { node.warn(RED._("twitter.warn.nousers")); }
//if (users.length === 0) { node.warn(RED._("twitter.warn.nousers")); }
else {
for (var i=0; i<users.length; i++) {
var user = users[i].replace(" ","");
twit.getUserTimeline({
screen_name:user,
trim_user:0,
count:1
},(function() {
var u = user+"";
return function(err,cb) {
if (err) {
node.error(err);
return;
}
if (cb[0]) {
node.since_ids[u] = cb[0].id_str;
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}
else {
node.since_ids[u] = '0';
}
node.poll_ids.push(setInterval(function() {
twit.getUserTimeline({
screen_name:u,
trim_user:0,
since_id:node.since_ids[u]
}, function(err,cb) {
if (cb) {
for (var t=cb.length-1; t>=0; t-=1) {
var tweet = cb[t];
var where = tweet.user.location;
var la = tweet.lang || tweet.user.lang;
var msg = { topic:node.topic+"/"+tweet.user.screen_name, payload:tweet.text, lang:la, tweet:tweet };
if (where) {
msg.location = {place:where};
addLocationToTweet(msg);
}
node.send(msg);
if (t === 0) {
node.since_ids[u] = tweet.id_str;
}
}
}
if (err) {
node.error(err);
}
});
},60000));
}
}()));
}
}
}
else if (this.user === "dm") {
node.poll_ids = [];
node.status({});
twit.getDirectMessages({
screen_name:node.twitterConfig.screen_name,
trim_user:0,
count:1
},function(err,cb) {
if (err) {
node.error(err);
return;
}
if (cb[0]) {
node.since_id = cb[0].id_str;
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}
else {
node.since_id = '0';
}
node.poll_ids.push(setInterval(function() {
twit.getDirectMessages({
screen_name:node.twitterConfig.screen_name,
trim_user:0,
since_id:node.since_id
},function(err,cb) {
if (cb) {
for (var t=cb.length-1;t>=0;t-=1) {
var tweet = cb[t];
var where = tweet.sender.location;
var la = tweet.lang || tweet.sender.lang;
var msg = { topic:node.topic+"/"+tweet.sender.screen_name, payload:tweet.text, lang:la, tweet:tweet };
if (where) {
msg.location = {place:where};
addLocationToTweet(msg);
}
node.send(msg);
if (t === 0) {
node.since_id = tweet.id_str;
}
}
}
if (err) {
node.error(err);
}
});
},120000));
});
}
else if (this.user === "event") {
try {
var thingu = 'user';
var setupEvStream = function() {
if (node.active) {
twit.stream(thingu, st, function(stream) {
node.status({fill:"green", shape:"dot", text:" "});
node.stream = stream;
stream.on('data', function(tweet) {
if (tweet.event !== undefined) {
var where = tweet.source.location;
var la = tweet.source.lang;
var msg = { topic:node.topic+"/"+tweet.source.screen_name, payload:tweet.event, lang:la, tweet:tweet };
if (where) {
msg.location = {place:where};
addLocationToTweet(msg);
}
node.send(msg);
}
});
stream.on('limit', function(tweet) {
node.status({fill:"grey", shape:"dot", text:" "});
node.tout2 = setTimeout(function() { node.status({fill:"green", shape:"dot", text:" "}); },10000);
});
stream.on('error', function(tweet,rc) {
//console.log("ERRO",rc,tweet);
if (rc == 420) {
node.status({fill:"red", shape:"ring", text:RED._("twitter.errors.ratelimit")});
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}
else {
node.status({fill:"red", shape:"ring", text:" "});
node.warn(RED._("twitter.errors.streamerror",{error:tweet.toString(),rc:rc}));
}
twitterRateTimeout = Date.now() + retry;
if (node.restart) {
node.tout = setTimeout(function() { setupEvStream() },retry);
}
});
stream.on('destroy', function (response) {
//console.log("DEST",response)
twitterRateTimeout = Date.now() + 15000;
if (node.restart) {
node.status({fill:"red", shape:"dot", text:" "});
node.warn(RED._("twitter.errors.unexpectedend"));
node.tout = setTimeout(function() { setupEvStream() },15000);
}
});
});
}
}
setupEvStream();
}
catch (err) {
node.error(err);
}
}
else {
try {
var thing = 'statuses/filter';
var tags = node.tags;
var st = { track: [tags] };
var setupStream = function() {
if (node.restart) {
node.status({fill:"green", shape:"dot", text:(tags||" ")});
twit.stream(thing, st, function(stream) {
//console.log("ST",st);
node.stream = stream;
var retry = 60000; // 60 secs backoff for now
stream.on('data', function(tweet) {
if (tweet.user !== undefined) {
var where = tweet.user.location;
var la = tweet.lang || tweet.user.lang;
var msg = { topic:node.topic+"/"+tweet.user.screen_name, payload:tweet.text, lang:la, tweet:tweet };
if (where) {
msg.location = {place:where};
addLocationToTweet(msg);
}
node.send(msg);
//node.status({fill:"green", shape:"dot", text:(tags||" ")});
}
});
stream.on('limit', function(tweet) {
//node.status({fill:"grey", shape:"dot", text:RED._("twitter.errors.limitrate")});
node.status({fill:"grey", shape:"dot", text:(tags||" ")});
node.tout2 = setTimeout(function() { node.status({fill:"green", shape:"dot", text:(tags||" ")}); },10000);
});
stream.on('error', function(tweet,rc) {
//console.log("ERRO",rc,tweet);
if (rc == 420) {
node.status({fill:"red", shape:"ring", text:RED._("twitter.errors.ratelimit")});
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}
else {
node.status({fill:"red", shape:"ring", text:tweet.toString()});
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node.warn(RED._("twitter.errors.streamerror",{error:tweet.toString(),rc:rc}));
}
twitterRateTimeout = Date.now() + retry;
if (node.restart) {
node.tout = setTimeout(function() { setupStream() },retry);
}
});
stream.on('destroy', function (response) {
//console.log("DEST",response)
twitterRateTimeout = Date.now() + 15000;
if (node.restart) {
node.status({fill:"red", shape:"dot", text:" "});
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node.warn(RED._("twitter.errors.unexpectedend"));
node.tout = setTimeout(function() { setupStream() },15000);
}
});
});
}
}
// ask for users stream instead of public
if (this.user === "true") {
thing = 'user';
// twit.getFriendsIds(node.twitterConfig.screen_name.substr(1), function(err,list) {
// friends = list;
// });
st = null;
}
// if 4 numeric tags that look like a geo area then set geo area
var bits = node.tags.split(",");
if (bits.length == 4) {
if ((Number(bits[0]) < Number(bits[2])) && (Number(bits[1]) < Number(bits[3]))) {
st = { locations: node.tags };
node.log(RED._("twitter.status.using-geo",{location:node.tags.toString()}));
}
}
// all public tweets
if (this.user === "false") {
node.on("input", function(msg) {
if (this.tags === '') {
if (node.tout) { clearTimeout(node.tout); }
if (node.tout2) { clearTimeout(node.tout2); }
if (this.stream) {
this.restart = false;
node.stream.removeAllListeners();
this.stream.destroy();
}
if ((typeof msg.payload === "string") && (msg.payload !== "")) {
st = { track:[msg.payload] };
tags = msg.payload;
this.restart = true;
if ((twitterRateTimeout - Date.now()) > 0 ) {
node.status({fill:"red", shape:"ring", text:tags});
node.tout = setTimeout(function() {
setupStream();
}, twitterRateTimeout - Date.now() );
}
else {
setupStream();
}
}
else {
node.status({fill:"yellow", shape:"ring", text:RED._("twitter.warn.waiting")});
}
}
});
}
// wait for input or start the stream
if ((this.user === "false") && (tags === '')) {
node.status({fill:"yellow", shape:"ring", text:RED._("twitter.warn.waiting")});
}
else {
this.restart = true;
setupStream();
}
}
catch (err) {
node.error(err);
}
}
}
else {
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this.error(RED._("twitter.errors.missingcredentials"));
}
this.on('close', function() {
if (node.tout) { clearTimeout(node.tout); }
if (node.tout2) { clearTimeout(node.tout2); }
if (this.stream) {
this.restart = false;
node.stream.removeAllListeners();
this.stream.destroy();
}
if (this.poll_ids) {
for (var i=0;i<this.poll_ids.length;i++) {
clearInterval(this.poll_ids[i]);
}
}
});
}
RED.nodes.registerType("twitter in",TwitterInNode);
function TwitterOutNode(n) {
RED.nodes.createNode(this,n);
this.topic = n.topic;
this.twitter = n.twitter;
this.twitterConfig = RED.nodes.getNode(this.twitter);
var credentials = RED.nodes.getCredentials(this.twitter);
var node = this;
if (credentials && credentials.screen_name == this.twitterConfig.screen_name) {
var twit = new Ntwitter({
consumer_key: "OKjYEd1ef2bfFolV25G5nQ",
consumer_secret: "meRsltCktVMUI8gmggpXett7WBLd1k0qidYazoML6g",
access_token_key: credentials.access_token,
access_token_secret: credentials.access_token_secret
});
node.on("input", function(msg) {
if (msg.hasOwnProperty("payload")) {
node.status({fill:"blue",shape:"dot",text:"twitter.status.tweeting"});
if (msg.payload.length > 140) {
msg.payload = msg.payload.slice(0,139);
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node.warn(RED._("twitter.errors.truncated"));
}
if (msg.media && Buffer.isBuffer(msg.media)) {
var apiUrl = "https://api.twitter.com/1.1/statuses/update_with_media.json";
var signedUrl = oa.signUrl(apiUrl,
credentials.access_token,
credentials.access_token_secret,
"POST");
var r = request.post(signedUrl,function(err,httpResponse,body) {
if (err) {
node.error(err,msg);
node.status({fill:"red",shape:"ring",text:"twitter.status.failed"});
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}
else {
var response = JSON.parse(body);
if (response.errors) {
var errorList = response.errors.map(function(er) { return er.code+": "+er.message }).join(", ");
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node.error(RED._("twitter.errors.sendfail",{error:errorList}),msg);
node.status({fill:"red",shape:"ring",text:"twitter.status.failed"});
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}
else {
node.status({});
}
}
});
var form = r.form();
form.append("status",msg.payload);
form.append("media[]",msg.media,{filename:"image"});
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}
else {
if (typeof msg.params === 'undefined') { msg.params = {}; }
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twit.updateStatus(msg.payload, msg.params, function (err, data) {
if (err) {
node.status({fill:"red",shape:"ring",text:"twitter.status.failed"});
node.error(err,msg);
}
node.status({});
});
}
}
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else { node.warn(RED._("twitter.errors.nopayload")); }
});
}
}
RED.nodes.registerType("twitter out",TwitterOutNode);
var oa = new OAuth(
"https://api.twitter.com/oauth/request_token",
"https://api.twitter.com/oauth/access_token",
"OKjYEd1ef2bfFolV25G5nQ",
"meRsltCktVMUI8gmggpXett7WBLd1k0qidYazoML6g",
"1.0",
null,
"HMAC-SHA1"
);
RED.httpAdmin.get('/twitter-credentials/:id/auth', RED.auth.needsPermission('twitter.read'), function(req, res) {
var credentials = {};
oa.getOAuthRequestToken({
oauth_callback: req.query.callback
},function(error, oauth_token, oauth_token_secret, results) {
if (error) {
var err = {statusCode: 401, data: "dummy error"};
var resp = RED._("twitter.errors.oautherror",{statusCode: err.statusCode, errorData: err.data});
res.send(resp)
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}
else {
credentials.oauth_token = oauth_token;
credentials.oauth_token_secret = oauth_token_secret;
res.redirect('https://api.twitter.com/oauth/authorize?oauth_token='+oauth_token)
RED.nodes.addCredentials(req.params.id,credentials);
}
});
});
RED.httpAdmin.get('/twitter-credentials/:id/auth/callback', RED.auth.needsPermission('twitter.read'), function(req, res, next) {
var credentials = RED.nodes.getCredentials(req.params.id);
credentials.oauth_verifier = req.query.oauth_verifier;
oa.getOAuthAccessToken(
credentials.oauth_token,
credentials.token_secret,
credentials.oauth_verifier,
function(error, oauth_access_token, oauth_access_token_secret, results) {
if (error) {
RED.log.error(error);
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res.send(RED._("twitter.errors.oauthbroke"));
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}
else {
credentials = {};
credentials.access_token = oauth_access_token;
credentials.access_token_secret = oauth_access_token_secret;
credentials.screen_name = "@"+results.screen_name;
RED.nodes.addCredentials(req.params.id,credentials);
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res.send(RED._("twitter.errors.authorized"));
}
}
);
});
}