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parser.js
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/**
* This is the file where commands get parsed
*
* Some parts of this code are taken from the Pokémon Showdown server code, so
* credits also go to Guangcong Luo and other Pokémon Showdown contributors.
* https://github.com/Zarel/Pokemon-Showdown
*
* @license MIT license
*/
var sys = require('sys');
var https = require('https');
var url = require('url');
const ACTION_COOLDOWN = 3*1000;
const FLOOD_MESSAGE_NUM = 5;
const FLOOD_PER_MSG_MIN = 500; // this is the minimum time between messages for legitimate spam. It's used to determine what "flooding" is caused by lag
const FLOOD_MESSAGE_TIME = 6*1000;
const MIN_CAPS_LENGTH = 18;
const MIN_CAPS_PROPORTION = 0.8;
var settings;
try {
settings = JSON.parse(fs.readFileSync('settings.json'));
} catch (e) {} // file doesn't exist [yet]
if (!Object.isObject(settings)) settings = {};
exports.parse = {
actionUrl: url.parse('https://play.pokemonshowdown.com/~~' + config.serverid + '/action.php'),
room: 'lobby',
'settings': settings,
chatData: {},
ranks: {},
RP: {},
blacklistRegexes: {},
data: function(data) {
if (data.substr(0, 1) === 'a') {
data = JSON.parse(data.substr(1));
if (data instanceof Array) {
for (var i = 0, len = data.length; i < len; i++) {
this.splitMessage(data[i]);
}
} else {
this.splitMessage(data);
}
}
},
splitMessage: function(message) {
if (!message) return;
var room = 'lobby';
if (message.indexOf('\n') < 0) return this.message(message, room);
var spl = message.split('\n');
if (spl[0].charAt(0) === '>') {
if (spl[1].substr(1, 10) === 'tournament') return;
room = spl.shift().substr(1);
if (spl[0].substr(1, 4) === 'init') {
var users = spl[2].substr(7).split(',');
var nickId = toId(config.nick);
for (var i = users.length; i--;) {
if (toId(users[i]) === nickId) this.ranks[room] = users[i].trim().charAt(0);
break;
}
return ok('joined ' + room);
}
}
for (var i = 0, len = spl.length; i < len; i++) {
this.message(spl[i], room);
}
},
message: function(message, room) {
var spl = message.split('|');
switch (spl[1]) {
case 'challstr':
info('received challstr, logging in...');
var id = spl[2];
var str = spl[3];
var requestOptions = {
hostname: this.actionUrl.hostname,
port: this.actionUrl.port,
path: this.actionUrl.pathname,
agent: false
};
if (!config.pass) {
requestOptions.method = 'GET';
requestOptions.path += '?act=getassertion&userid=' + toId(config.nick) + '&challengekeyid=' + id + '&challenge=' + str;
} else {
requestOptions.method = 'POST';
var data = 'act=login&name=' + config.nick + '&pass=' + config.pass + '&challengekeyid=' + id + '&challenge=' + str;
requestOptions.headers = {
'Content-Type': 'application/x-www-form-urlencoded',
'Content-Length': data.length
};
}
var req = https.request(requestOptions, function(res) {
res.setEncoding('utf8');
var data = '';
res.on('data', function(chunk) {
data += chunk;
});
res.on('end', function() {
if (data === ';') {
error('failed to log in; nick is registered - invalid or no password given');
process.exit(-1);
}
if (data.length < 50) {
error('failed to log in: ' + data);
process.exit(-1);
}
if (data.indexOf('heavy load') !== -1) {
error('the login server is under heavy load; trying again in one minute');
setTimeout(function() {
this.message(message);
}.bind(this), 60 * 1000);
return;
}
if (data.substr(0, 16) === '<!DOCTYPE html>') {
error('Connection error 522; trying agian in one minute');
setTimeout(function() {
this.message(message);
}.bind(this), 60 * 1000);
return;
}
try {
data = JSON.parse(data.substr(1));
if (data.actionsuccess) {
data = data.assertion;
} else {
error('could not log in; action was not successful: ' + JSON.stringify(data));
process.exit(-1);
}
} catch (e) {}
send('|/trn ' + config.nick + ',0,' + data);
}.bind(this));
}.bind(this));
req.on('error', function(err) {
error('login error: ' + sys.inspect(err));
});
if (data) req.write(data);
req.end();
break;
case 'updateuser':
if (spl[2] !== config.nick) return;
if (spl[3] !== '1') {
error('failed to log in, still guest');
process.exit(-1);
}
ok('logged in as ' + spl[2]);
// Now join the rooms
for (var i = 0, len = config.rooms.length; i < len; i++) {
var room = toId(config.rooms[i]);
if (room === 'lobby' && config.serverid === 'showdown') continue;
send('|/join ' + room);
}
for (var i = 0, len = config.privaterooms.length; i < len; i++) {
var room = toId(config.privaterooms[i]);
if (room === 'lobby' && config.serverid === 'showdown') continue;
send('|/join ' + room);
}
if (config.serverid === 'showdown') {
this.amphyVoices = [];
this.freeroamTimeouts = {};
if (this.settings && this.settings.RP) {
this.RP.void = {};
for (var i = config.rprooms.length; i--;) {
var roomid = toId(config.rprooms[i]);
var roleplay = this.settings.RP[roomid];
if (roleplay) {
if (roleplay.called) delete roleplay.called;
if (roleplay.hostCalled) delete roleplay.hostCalled;
this.RP[roomid] = roleplay;
this.RP.void[roomid] = this.settings.RP.void[roomid];
} else {
this.RP[roomid] = this.settings.RP[roomid] = {};
this.RP.void[roomid] = this.settings.RP.void[roomid] = [];
}
if (roleplay && roleplay.setAt && toId(roleplay.plot) === 'freeroam') {
var timeout = Date.now() - new Date(roleplay.setAt).getTime();
if (timeout < 0) {
this.splitMessage('>' + roomid + '\n|c|~Morfent|' + config.commandcharacter + 'endrp');
continue;
}
this.freeroamTimeouts[roomid] = setTimeout(function() {
this.splitMessage('>' + roomid + '\n|c|~Morfent|' + config.commandcharacter + 'endrp');
delete this.freeroamTimeouts[roomid];
}.bind(this), timeout);
}
}
} else {
this.RP = this.settings.RP = {void: {}};
for (var i = config.rprooms.length; i--;) {
var roomid = toId(config.rprooms[i]);
this.RP[roomid] = {};
this.RP.void[roomid] = [];
}
}
} else {
if (this.settings.RP) {
for (var i = config.rprooms.length; i--;) {
var roomid = toId(config.rprooms[i]);
var roleplay = this.settings.RP[roomid];
if (roleplay) {
if (roleplay.called) delete roleplay.called;
if (roleplay.hostCalled) delete roleplay.hostCalled;
this.RP[roomid] = roleplay;
} else {
this.RP[roomid] = this.settings.RP[roomid] = {};
}
}
} else {
this.settings.RP = this.RP = {};
for (var i = config.rprooms.length; i--;) {
this.RP[toId(config.rprooms[i])] = {};
}
}
}
if (this.settings.blacklist) {
var blacklist = this.settings.blacklist;
for (var room in blacklist) {
this.updateBlacklistRegex(room);
}
}
setInterval(this.cleanChatData.bind(this), 30 * 60 * 1000);
break;
case 'c':
var by = spl[2];
if (this.isBlacklisted(toId(by), room)) return this.say(room, '/roomban ' + by + ', Blacklisted user');
spl = spl.slice(3).join('|');
if ('%@#&~'.indexOf(by.charAt(0)) < 0) this.processChatData(toId(by), room, spl);
this.chatMessage(spl, by, room);
break;
case 'c:':
var by = spl[3];
if (this.isBlacklisted(toId(by), room)) return this.say(room, '/roomban ' + by + ', Blacklisted user');
spl = spl.slice(4).join('|');
if ('%@#&~'.indexOf(by.charAt(0)) < 0) this.processChatData(toId(by), room, spl);
this.chatMessage(spl, by, room);
break;
case 'pm':
var by = spl[2];
this.chatMessage(spl.slice(4).join('|'), by, ',' + by);
break;
case 'N':
var by = spl[2];
if (this.isBlacklisted(toId(by), room)) return this.say(room, '/roomban ' + by + ', Blacklisted user');
this.updateSeen(spl[3], spl[1], toId(by));
break;
case 'J': case 'j':
var by = spl[2];
if (this.isBlacklisted(toId(by), room)) return this.say(room, '/roomban ' + by + ', Blacklisted user');
this.updateSeen(toId(by), spl[1], room);
break;
case 'l': case 'L':
this.updateSeen(toId(spl[2]), spl[1], room);
break;
case 'popup':
if (spl[2] === 'Room Owners (#):') this.amphyVoices = spl[spl.length - 1].split(', ');
break;
}
},
chatMessage: function(message, by, room) {
var cmdrMessage = '["' + room + '|' + by + '|' + message + '"]';
message = message.trim();
// auto accept invitations to rooms
if (room.charAt(0) === ',' && message.substr(0,8) === '/invite ' && this.hasRank(by, '%@&~') && !(config.serverid === 'showdown' && toId(message.substr(8)) === 'lobby')) {
this.say('', '/join ' + message.substr(8));
}
if (message.substr(0, config.commandcharacter.length) !== config.commandcharacter || toId(by) === toId(config.nick)) return;
message = message.substr(config.commandcharacter.length);
var index = message.indexOf(' ');
var arg = '';
if (index > -1) {
var cmd = message.substr(0, index);
arg = message.substr(index + 1).trim();
} else {
var cmd = message;
}
if (Commands[cmd]) {
var failsafe = 0;
while (typeof Commands[cmd] !== "function" && failsafe++ < 10) {
cmd = Commands[cmd];
}
if (typeof Commands[cmd] === "function") {
cmdr(cmdrMessage);
Commands[cmd].call(this, arg, by, room);
} else {
error("invalid command type for " + cmd + ": " + (typeof Commands[cmd]));
}
}
},
say: function(room, text) {
if (room.charAt(0) !== ',') {
var str = (room !== 'lobby' ? room : '') + '|' + text;
} else {
room = room.substr(1);
var str = '|/pm ' + room + ', ' + text;
}
send(str);
},
hasRank: function(user, rank) {
var hasRank = (rank.split('').indexOf(user.charAt(0)) !== -1) || (config.excepts.indexOf(toId(user)) !== -1);
return hasRank;
},
canUse: function(cmd, room, user) {
var canUse = false;
var ranks = ' +%@&#~';
if (!this.settings[cmd] || !this.settings[cmd][room]) {
canUse = this.hasRank(user, ranks.substr(ranks.indexOf((cmd === 'autoban' || cmd === 'banword') ? '#' : config.defaultrank)));
} else if (this.settings[cmd][room] === true) {
canUse = true;
} else if (ranks.indexOf(this.settings[cmd][room]) > -1) {
canUse = this.hasRank(user, ranks.substr(ranks.indexOf(this.settings[cmd][room])));
}
return canUse;
},
isBlacklisted: function(user, room) {
var blacklistRegex = this.blacklistRegexes[room];
return blacklistRegex && blacklistRegex.test(user);
},
blacklistUser: function(user, room) {
var blacklist = this.settings.blacklist || (this.settings.blacklist = {});
if (blacklist[room]) {
if (blacklist[room][user]) return false;
} else {
blacklist[room] = {};
}
blacklist[room][user] = 1;
this.updateBlacklistRegex(room);
return true;
},
unblacklistUser: function(user, room) {
var blacklist = this.settings.blacklist;
if (!blacklist || !blacklist[room] || !blacklist[room][user]) return false;
delete blacklist[room][user];
if (Object.isEmpty(blacklist[room])) {
delete blacklist[room];
delete this.blacklistRegexes[room];
} else {
this.updateBlacklistRegex(room);
}
return true;
},
updateBlacklistRegex: function(room) {
var blacklist = this.settings.blacklist[room];
var buffer = [];
for (var entry in blacklist) {
if (entry.charAt(0) === '/' && entry.substr(-2) === '/i') {
buffer.push(entry.slice(1, -2));
} else {
buffer.push('^' + entry + '$');
}
}
this.blacklistRegexes[room] = new RegExp(buffer.join('|'), 'i');
},
uploadToHastebin: function(toUpload, callback) {
var reqOpts = {
hostname: "hastebin.com",
method: "POST",
path: '/documents'
};
var req = require('http').request(reqOpts, function(res) {
res.on('data', function(chunk) {
if (callback && typeof callback === "function") callback("hastebin.com/raw/" + JSON.parse(chunk.toString())['key']);
});
});
req.write(toUpload);
req.end();
},
processChatData: function(user, room, msg) {
// NOTE: this is still in early stages
if (toId(user) === toId(config.nick)) {
this.ranks[room] = user.charAt(0);
return;
}
user = toId(user);
if (!user || room.charAt(0) === ',') return;
msg = msg.trim().replace(/[ \u0000\u200B-\u200F]+/g, " "); // removes extra spaces and null characters so messages that should trigger stretching do so
user = toId(user);
this.updateSeen(user, 'c', room);
var now = Date.now();
if (!this.chatData[user]) this.chatData[user] = {
zeroTol: 0,
lastSeen: '',
seenAt: now
};
var userData = this.chatData[user];
if (!this.chatData[user][room]) this.chatData[user][room] = {
times: [],
points: 0,
lastAction: 0
};
var roomData = userData[room];
roomData.times.push(now);
// this deals with punishing rulebreakers, but note that the bot can't think, so it might make mistakes
if (config.allowmute && this.hasRank(this.ranks[room] || ' ', '%@&#~') && config.whitelist.indexOf(user) === -1) {
var useDefault = !(this.settings.modding && this.settings.modding[room]);
var pointVal = 0;
var muteMessage = '';
var modSettings = useDefault ? null : this.settings.modding[room];
// moderation for banned words
if ((useDefault || !this.settings.banword[room]) && pointVal < 2) {
var bannedPhraseSettings = this.settings.bannedphrases;
var bannedPhrases = !!bannedPhraseSettings ? (Object.keys(bannedPhraseSettings[room] || {})).concat(Object.keys(bannedPhraseSettings.global || {})) : [];
for (var i = 0; i < bannedPhrases.length; i++) {
if (msg.toLowerCase().indexOf(bannedPhrases[i]) > -1) {
pointVal = 2;
muteMessage = ', Automated response: your message contained a banned phrase';
break;
}
}
}
// moderation for flooding (more than x lines in y seconds)
var times = roomData.times;
var timesLen = times.length;
var isFlooding = (timesLen >= FLOOD_MESSAGE_NUM && (now - times[timesLen - FLOOD_MESSAGE_NUM]) < FLOOD_MESSAGE_TIME
&& (now - times[timesLen - FLOOD_MESSAGE_NUM]) > (FLOOD_PER_MSG_MIN * FLOOD_MESSAGE_NUM));
if ((useDefault || !('flooding' in modSettings)) && isFlooding) {
if (pointVal < 2) {
pointVal = 2;
muteMessage = ', Automated response: flooding';
}
}
// moderation for caps (over x% of the letters in a line of y characters are capital)
var capsMatch = msg.replace(/[^A-Za-z]/g, '').match(/[A-Z]/g);
if ((useDefault || !('caps' in modSettings)) && capsMatch && toId(msg).length > MIN_CAPS_LENGTH && (capsMatch.length >= ~~(toId(msg).length * MIN_CAPS_PROPORTION))) {
if (pointVal < 1) {
pointVal = 1;
muteMessage = ', Automated response: caps';
}
}
// moderation for stretching (over x consecutive characters in the message are the same)
var stretchMatch = /(.)\1{7,}/gi.test(msg) || /(..+)\1{4,}/gi.test(msg); // matches the same character (or group of characters) 8 (or 5) or more times in a row
if ((useDefault || !('stretching' in modSettings)) && stretchMatch) {
if (pointVal < 1) {
pointVal = 1;
muteMessage = ', Automated response: stretching';
}
}
if (pointVal > 0 && now - roomData.lastAction >= ACTION_COOLDOWN) {
var cmd = 'mute';
// defaults to the next punishment in config.punishVals instead of repeating the same action (so a second warn-worthy
// offence would result in a mute instead of a warn, and the third an hourmute, etc)
if (roomData.points >= pointVal && pointVal < 4) {
roomData.points++;
cmd = config.punishvals[roomData.points] || cmd;
} else { // if the action hasn't been done before (is worth more points) it will be the one picked
cmd = config.punishvals[pointVal] || cmd;
roomData.points = pointVal; // next action will be one level higher than this one (in most cases)
}
if (config.privaterooms.indexOf(room) > -1 && cmd === 'warn') cmd = 'mute'; // can't warn in private rooms
// if the bot has % and not @, it will default to hourmuting as its highest level of punishment instead of roombanning
if (roomData.points >= 4 && !this.hasRank(this.ranks[room] || ' ', '@&#~')) cmd = 'hourmute';
if (userData.zeroTol > 4) { // if zero tolerance users break a rule they get an instant roomban or hourmute
muteMessage = ', Automated response: zero tolerance user';
cmd = this.hasRank(this.ranks[room] || ' ', '@&#~') ? 'roomban' : 'hourmute';
}
if (roomData.points > 1) userData.zeroTol++; // getting muted or higher increases your zero tolerance level (warns do not)
roomData.lastAction = now;
this.say(room, '/' + cmd + ' ' + user + muteMessage);
}
}
},
cleanChatData: function() {
var chatData = this.chatData;
for (var user in chatData) {
for (var room in chatData[user]) {
var roomData = chatData[user][room];
if (!Object.isObject(roomData)) continue;
if (!roomData.times || !roomData.times.length) {
delete chatData[user][room];
continue;
}
var newTimes = [];
var now = Date.now();
var times = roomData.times;
for (var i = 0, len = times.length; i < len; i++) {
if (now - times[i] < 5 * 1000) newTimes.push(times[i]);
}
newTimes.sort(function (a, b) {
return a - b;
});
roomData.times = newTimes;
if (roomData.points > 0 && roomData.points < 4) roomData.points--;
}
}
},
updateSeen: function(user, type, detail) {
if (type !== 'n' && config.rooms.indexOf(detail) === -1 || config.privaterooms.indexOf(toId(detail)) > -1) return;
var now = Date.now();
if (!this.chatData[user]) this.chatData[user] = {
zeroTol: 0,
lastSeen: '',
seenAt: now
};
if (!detail) return;
var userData = this.chatData[user];
var msg = '';
switch (type) {
case 'j':
case 'J':
msg += 'joining ';
break;
case 'l':
case 'L':
msg += 'leaving ';
break;
case 'c':
case 'c:':
msg += 'chatting in ';
break;
case 'N':
msg += 'changing nick to ';
if (detail.charAt(0) !== ' ') detail = detail.substr(1);
break;
}
msg += detail.trim() + '.';
userData.lastSeen = msg;
userData.seenAt = now;
},
getTimeAgo: function(time) {
time = ~~((Date.now() - time) / 1000);
var seconds = time % 60;
var times = [];
if (seconds) times.push(seconds + (seconds === 1 ? ' second': ' seconds'));
if (time >= 60) {
time = ~~((time - seconds) / 60);
var minutes = time % 60;
if (minutes) times.unshift(minutes + (minutes === 1 ? ' minute' : ' minutes'));
if (time >= 60) {
time = ~~((time - minutes) / 60);
hours = time % 24;
if (hours) times.unshift(hours + (hours === 1 ? ' hour' : ' hours'));
if (time >= 24) {
days = ~~((time - hours) / 24);
if (days) times.unshift(days + (days === 1 ? ' day' : ' days'));
}
}
}
if (!times.length) return '0 seconds';
return times.join(', ');
},
splitDoc: function(voided) {
if (!/https?:\/\//.test(voided)) return voided;
voided = voided.replace(/doc.*(?=http)/i, '');
var docIndex = voided.indexOf('http');
voided = voided.substr(0, docIndex).replace(/[^a-z0-9]*$/i, '');
return voided;
},
writeSettings: (function() {
var writing = false;
var writePending = false; // whether or not a new write is pending
var finishWriting = function() {
writing = false;
if (writePending) {
writePending = false;
this.writeSettings();
}
};
return function() {
if (writing) {
writePending = true;
return;
}
writing = true;
var data = JSON.stringify(this.settings);
fs.writeFile('settings.json.0', data, function() {
// rename is atomic on POSIX, but will throw an error on Windows
fs.rename('settings.json.0', 'settings.json', function(err) {
if (err) {
// This should only happen on Windows.
fs.writeFile('settings.json', data, finishWriting);
return;
}
finishWriting();
});
});
};
})(),
uncacheTree: function(root) {
var uncache = [require.resolve(root)];
do {
var newuncache = [];
for (var i = 0; i < uncache.length; ++i) {
if (require.cache[uncache[i]]) {
newuncache.push.apply(newuncache,
require.cache[uncache[i]].children.map(function(module) {
return module.filename;
})
);
delete require.cache[uncache[i]];
}
}
uncache = newuncache;
} while (uncache.length > 0);
}
};