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<h1 class="page-title">Source: core/whisper.js</h1>
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<pre class="prettyprint source linenums"><code>/**
* @author Marzavec ( https://github.com/marzavec )
* @summary Send whisper
* @version 1.0.0
* @description Display text on target users screen that only they can see
* @module whisper
* @todo This should be changed to it's own event type, instead of `info`
and accept a `userid` rather than `nick`
*/
import {
findUser,
} from '../utility/_Channels.js';
import {
Errors,
} from '../utility/_Constants.js';
import {
legacyWhisperOut,
legacyWhisperReply,
} from '../utility/_LegacyFunctions.js';
/**
* Check and trim string provided by remote client
* @param {string} text - Subject string
* @private
* @todo Move into utility module
* @return {string|boolean}
*/
const parseText = (text) => {
// verifies user input is text
if (typeof text !== 'string') {
return false;
}
let sanitizedText = text;
// strip newlines from beginning and end
sanitizedText = sanitizedText.replace(/^\s*\n|^\s+$|\n\s*$/g, '');
// replace 3+ newlines with just 2 newlines
sanitizedText = sanitizedText.replace(/\n{3,}/g, '\n\n');
return sanitizedText;
};
/**
* Executes when invoked by a remote client
* @param {Object} env - Environment object with references to core, server, socket &amp; payload
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* @public
* @return {void}
*/
export async function run({ server, socket, payload }) {
// if this is a legacy client add missing params to payload
if (socket.hcProtocol === 1) {
payload.channel = socket.channel; // eslint-disable-line no-param-reassign
}
// verify user input
const text = parseText(payload.text);
if (!text) {
// lets not send objects or empty text, yea?
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return server.police.frisk(socket, 13);
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}
// check for spam
const score = text.length / 83 / 4;
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if (server.police.frisk(socket, score)) {
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return server.reply({
cmd: 'warn', // @todo Add numeric error code as `id`
text: 'You are sending too much text. Wait a moment and try again.\nPress the up arrow key to restore your last message.',
channel: socket.channel, // @todo Multichannel
}, socket);
}
const targetUser = findUser(server, payload);
if (!targetUser) {
return server.reply({
cmd: 'warn',
text: 'Could not find user in that channel',
id: Errors.Global.UNKNOWN_USER,
channel: socket.channel, // @todo Multichannel
}, socket);
}
const outgoingPayload = {
cmd: 'whisper',
channel: socket.channel, // @todo Multichannel
from: socket.userid,
to: targetUser.userid,
text,
};
// send invite notice to target client
if (targetUser.hcProtocol === 1) {
server.reply(legacyWhisperOut(outgoingPayload, socket), targetUser);
} else {
server.reply(outgoingPayload, targetUser);
}
// send invite notice to this client
if (socket.hcProtocol === 1) {
server.reply(legacyWhisperReply(outgoingPayload, targetUser.nick), socket);
} else {
server.reply(outgoingPayload, socket);
}
targetUser.whisperReply = socket.nick;
return true;
}
/**
* Automatically executes once after server is ready to register this modules hooks
* @param {Object} server - Reference to server environment object
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* @public
* @return {void}
*/
export function initHooks(server) {
server.registerHook('in', 'chat', this.whisperCheck.bind(this), 20);
}
/**
* Executes every time an incoming chat command is invoked;
* hooks chat commands checking for /whisper
* @param {Object} env - Environment object with references to core, server, socket &amp; payload
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* @public
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* @return {(Object|boolean|string)} Object = same/altered payload,
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* false = suppress action,
* string = error
*/
export function whisperCheck({
core, server, socket, payload,
}) {
if (typeof payload.text !== 'string') {
return false;
}
if (payload.text.startsWith('/whisper ') || payload.text.startsWith('/w ')) {
const input = payload.text.split(' ');
// If there is no nickname target parameter
if (!input[1]) {
server.reply({
cmd: 'warn', // @todo Add numeric error code as `id`
text: 'Refer to `/help whisper` for instructions on how to use this command.',
channel: socket.channel, // @todo Multichannel
}, socket);
return false;
}
const target = input[1].replace(/@/g, '');
input.splice(0, 2);
const whisperText = input.join(' ');
this.run({
core,
server,
socket,
payload: {
cmd: 'whisper',
channel: socket.channel, // @todo Multichannel
nick: target,
text: whisperText,
},
});
return false;
}
if (payload.text.startsWith('/reply ') || payload.text.startsWith('/r ')) {
if (typeof socket.whisperReply === 'undefined') {
server.reply({
cmd: 'warn', // @todo Add numeric error code as `id`
text: 'Cannot reply to nobody',
channel: socket.channel, // @todo Multichannel
}, socket);
return false;
}
const input = payload.text.split(' ');
input.splice(0, 1);
const whisperText = input.join(' ');
this.run({
core,
server,
socket,
payload: {
cmd: 'whisper',
nick: socket.whisperReply,
channel: socket.channel, // @todo Multichannel
text: whisperText,
},
});
return false;
}
return payload;
}
/**
* The following payload properties are required to invoke this module:
* "nick", "text"
* @public
* @typedef {Array} whisper/requiredData
*/
export const requiredData = ['nick', 'text'];
/**
* Module meta information
* @public
* @typedef {Object} whisper/info
* @property {string} name - Module command name
* @property {string} category - Module category name
* @property {string} description - Information about module
* @property {string} usage - Information about module usage
*/
export const info = {
name: 'whisper',
category: 'core',
description: 'Display text on target users screen that only they can see',
usage: `
API: { cmd: 'whisper', nick: '&lt;target name>', text: '&lt;text to whisper>' }
Text: /whisper &lt;target name> &lt;text to whisper>
Text: /w &lt;target name> &lt;text to whisper>
Alt Text: /reply &lt;text to whisper, this will auto reply to the last person who whispered to you>
Alt Text: /r &lt;text to whisper, this will auto reply to the last person who whispered to you>`,
};
</code></pre>
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