1 files changed, 110 insertions, 0 deletions
diff --git a/server/src/commands/core/whisper.js b/server/src/commands/core/whisper.js
new file mode 100644
index 0000000..2ad2df0
--- /dev/null
+++ b/server/src/commands/core/whisper.js
@@ -0,0 +1,110 @@
+/*
+  Description: Display text on targets screen that only they can see
+*/
+
+// module support functions
+const verifyNickname = (nick) => /^[a-zA-Z0-9_]{1,24}$/.test(nick);
+
+const parseText = (text) => {
+  // verifies user input is text
+  if (typeof text !== 'string') {
+    return false;
+  }
+
+  // strip newlines from beginning and end
+  text = text.replace(/^\s*\n|^\s+$|\n\s*$/g, '');
+  // replace 3+ newlines with just 2 newlines
+  text = text.replace(/\n{3,}/g, "\n\n");
+
+  return text;
+};
+
+// module main
+exports.run = async (core, server, socket, payload) => {
+  // check user input
+  let text = parseText(payload.text);
+
+  if (!text) {
+    // lets not send objects or empty text, yea?
+    return server._police.frisk(socket.remoteAddress, 13);
+  }
+
+  // check for spam
+  let score = text.length / 83 / 4;
+  if (server._police.frisk(socket.remoteAddress, score)) {
+    return server.reply({
+      cmd: 'warn',
+      text: 'You are sending too much text. Wait a moment and try again.\nPress the up arrow key to restore your last message.'
+    }, socket);
+  }
+
+  let targetNick = payload.nick;
+  if (!verifyNickname(targetNick)) {
+    return;
+  }
+
+  // find target user
+  let targetClient = server.findSockets({ channel: socket.channel, nick: targetNick });
+
+  if (targetClient.length === 0) {
+    return server.reply({
+      cmd: 'warn',
+      text: 'Could not find user in channel'
+    }, socket);
+  }
+
+  targetClient = targetClient[0];
+
+  server.reply({
+    cmd: 'info',
+    type: 'whisper',
+    from: socket.nick,
+    trip: socket.trip || 'null',
+    text: `${socket.nick} whispered: ${text}`
+  }, targetClient);
+
+  server.reply({
+    cmd: 'info',
+    type: 'whisper',
+    text: `You whispered to @${targetNick}: ${text}`
+  }, socket);
+};
+
+// module hook functions
+exports.initHooks = (server) => {
+  server.registerHook('in', 'chat', this.whisperCheck);
+};
+
+// hooks chat commands checking for /whisper
+exports.whisperCheck = (core, server, socket, payload) => {
+  if (typeof payload.text !== 'string') {
+    return false;
+  }
+
+  if (payload.text.startsWith('/whisper')) {
+    let input = payload.text.split(' ');
+    let target = input[1].replace(/@/g, '');
+    input.splice(0, 2);
+    let whisperText = input.join(' ');
+
+    this.run(core, server, socket, {
+      cmd: 'whisper',
+      nick: target,
+      text: whisperText
+    });
+
+    return false;
+  }
+
+  return payload;
+};
+
+// module meta
+exports.requiredData = ['nick', 'text'];
+exports.info = {
+  name: 'whisper',
+  description: 'Display text on targets screen that only they can see',
+  usage: `
+    API: { cmd: 'whisper', nick: '<target name>', text: '<text to whisper>' }
+    Text: /whisper <target name> <text to whisper>`
+};