From d1b3e8b3777af1b391545b05cebd3929bf3c6e09 Mon Sep 17 00:00:00 2001
From: Vinicius Daly Felizardo <felizardow@gmail.com>
Date: Thu, 20 Jun 2013 03:20:48 -0400
Subject: [PATCH] Finished /encoding command to change encoding on the fly

---
 client/assets/src/models/application.js |  8 ++++++++
 client/assets/src/models/gateway.js     | 21 +++++++++++++++++----
 config.example.js                       |  6 ++++++
 server/clientcommands.js                | 10 ++++++++++
 server/irc/connection.js                | 20 ++++++++++++++++++--
 5 files changed, 59 insertions(+), 6 deletions(-)

diff --git a/client/assets/src/models/application.js b/client/assets/src/models/application.js
index 79f2310..a3b1392 100644
--- a/client/assets/src/models/application.js
+++ b/client/assets/src/models/application.js
@@ -461,6 +461,7 @@ _kiwi.model.Application = function () {
 
             controlbox.on('command:whowas', whowasCommand);
 
+            controlbox.on('command:encoding', encodingCommand);
 
             controlbox.on('command:css', function (ev) {
                 var queryString = '?reload=' + new Date().getTime();
@@ -789,6 +790,13 @@ _kiwi.model.Application = function () {
                 _kiwi.app.connections.active_connection.gateway.raw('WHOWAS ' + nick);
         }
 
+        function encodingCommand (ev) {
+            if (ev.params[0]) {
+                _kiwi.gateway.setEncoding(null, ev.params[0], function (msg) {
+                    _kiwi.app.panels().active.addMsg('', msg);
+                });
+            }
+        }
 
         function serverCommand (ev) {
             var server, port, ssl, password, nick,
diff --git a/client/assets/src/models/gateway.js b/client/assets/src/models/gateway.js
index 7074108..a13771c 100644
--- a/client/assets/src/models/gateway.js
+++ b/client/assets/src/models/gateway.js
@@ -247,8 +247,6 @@ _kiwi.model.Gateway = function () {
         });
     };
 
-
-
     this.isConnected = function () {
         return this.socket.socket.connected;
     };
@@ -535,6 +533,22 @@ _kiwi.model.Gateway = function () {
         this.sendData(connection_id, data, callback);
     };
 
+    /**
+     *  Sends ENCODING change request to server.
+     *  @param  {String}     new_encoding  The new proposed encode
+     *  @param  {Fucntion}   callback      A callback function
+     */
+    this.setEncoding = function (connection_id, new_encoding, callback) {
+      var data = {
+          method: 'encoding',
+          args: {
+              encoding: new_encoding
+          }
+      };
+
+      this.sendData(connection_id, data, callback);
+    };
+
     /**
     *   Sends data to a fellow Kiwi IRC user
     *   @param  {String}    target      The nick of the Kiwi IRC user to send to
@@ -553,7 +567,6 @@ _kiwi.model.Gateway = function () {
         this.sendData(data, callback);
     };
 
-
     // Check a nick alongside our ignore list
     this.isNickIgnored = function (nick) {
         var idx, list = this.get('ignore_list');
@@ -573,4 +586,4 @@ _kiwi.model.Gateway = function () {
 
 
     return new (Backbone.Model.extend(this))(arguments);
-};
\ No newline at end of file
+};
diff --git a/config.example.js b/config.example.js
index 9732497..626b804 100644
--- a/config.example.js
+++ b/config.example.js
@@ -60,6 +60,12 @@ conf.max_client_conns = 5;
 //   - Kiwi is running in restricted server mode.
 conf.max_server_conns = 0;
 
+/*
+* Available encodings supported by the server
+* As specified and limited to iconv-lite library support.
+* All upper-case. Default is the first element on the list.
+*/
+conf.available_encodings = ['UTF-8', 'WINDOWS-1252'];
 
 /*
  * Client side plugins
diff --git a/server/clientcommands.js b/server/clientcommands.js
index 0aed72d..9448611 100644
--- a/server/clientcommands.js
+++ b/server/clientcommands.js
@@ -154,5 +154,15 @@ var listeners = {
         if ((args.target) && (args.data)) {
             irc_connection.write('PRIVMSG ' + args.target + ': ' + String.fromCharCode(1) + 'KIWI ' + args.data + String.fromCharCode(1), callback);
         }
+    },
+
+    ENCODING: function (args, irc_connection, callback) {
+        if (args.encoding) {
+            if (irc_connection.setEncoding(args.encoding)) {
+              return callback('Encoding modified to '+args.encoding);
+            } else {
+              return callback(args.encoding+' is not a valid encoding');
+            }
+        }
     }
 };
diff --git a/server/irc/connection.js b/server/irc/connection.js
index a7202bd..3e0f75a 100644
--- a/server/irc/connection.js
+++ b/server/irc/connection.js
@@ -30,6 +30,9 @@ var IrcConnection = function (hostname, port, ssl, nick, user, pass, state) {
     });
     this.setMaxListeners(0);
 
+    // Set the first configured encoding as the default encoding
+    this.encoding = global.config.available_encodings[0];
+    
     // Socket state
     this.connected = false;
 
@@ -198,7 +201,7 @@ IrcConnection.prototype.clientEvent = function (event_name, data, callback) {
  */
 IrcConnection.prototype.write = function (data, callback) {
     //ENCODE string to encoding of the server
-    encoded_buffer = iconv.encode(data + '\r\n', "windows-1252");
+    encoded_buffer = iconv.encode(data + '\r\n', this.encoding);
     this.socket.write(encoded_buffer);
 };
 
@@ -251,6 +254,18 @@ IrcConnection.prototype.disposeSocket = function () {
     }
 };
 
+/**
+ * Set a new encoding for this connection
+ * Return true in case of success
+ */
+
+IrcConnection.prototype.setEncoding = function (encoding) {
+  if (global.config.available_encodings.indexOf(encoding.toUpperCase()) >= 0) {
+    this.encoding = encoding.toUpperCase();
+    return true;
+  }
+  return false;
+};
 
 
 function onChannelJoin(event) {
@@ -426,8 +441,9 @@ var parse = function (data) {
         tag;
 
     //DECODE server encoding 
-    data = iconv.decode(data, 'windows-1252');
+    data = iconv.decode(data, this.encoding);
     console.log(data);
+
     if (this.hold_last && this.held_data !== '') {
         data = this.held_data + data;
         this.hold_last = false;
-- 
2.25.1