From bb38c18fb326e8ba49e411893558ba223d67c675 Mon Sep 17 00:00:00 2001
From: Omar M <omar84@gmail.com>
Date: Sun, 6 Oct 2013 16:50:22 +0300
Subject: [PATCH] added custom-commands for greenpacket

---
 config/custom_commands-sample.json            |   3 +-
 .../greenpacket_frequencies.js                | 157 ++++++++++++++++++
 2 files changed, 159 insertions(+), 1 deletion(-)
 create mode 100644 config/custom_commands/greenpacket_frequencies.js

diff --git a/config/custom_commands-sample.json b/config/custom_commands-sample.json
index b9200a0..b83be0e 100644
--- a/config/custom_commands-sample.json
+++ b/config/custom_commands-sample.json
@@ -1,3 +1,4 @@
 {
-  "seowon_frequencies" : "/^[0-9]+\\-SWU\\%2D9200\\-[0-9A-Z]+$/"
+  "seowon_frequencies" : "/^[0-9]+\\-SWU\\%2D9200\\-[0-9A-Z]+$/",
+  "greenpacket_frequencies" : "/^[0-9A-Z]+\\-DX350\\-[0-9A-Z]+$/"
 }
diff --git a/config/custom_commands/greenpacket_frequencies.js b/config/custom_commands/greenpacket_frequencies.js
new file mode 100644
index 0000000..0b46474
--- /dev/null
+++ b/config/custom_commands/greenpacket_frequencies.js
@@ -0,0 +1,157 @@
+var net = require('net');
+var PORT = 23;
+var USERNAME = 'mt7109';
+var PASSWORD = 'wimax';
+var TIMEOUT = 5000;
+
+var FREQUENCIES_REGEX = /([0-9,]+)/
+var BANDWIDTHS_REGEX = /[0-9]+\-([0-9,]+)/
+var DEFAULT_BW_REGEX = /([0-9]+)\-[0-9,]+/
+var telnetConnect = function(host, callback) {
+  var client = net.connect(PORT, host, function() {
+    // enter username
+    telnetExecute(USERNAME, client, "Password: ", function(err, response) {
+      if (err) return callback(err);
+      // enter password
+      telnetExecute(PASSWORD, client, "\n# ", function(err, response) {
+        return callback(err);
+      });
+    });
+  });
+  return client;
+}
+
+var telnetExecute = function(command, connection, prompt, callback) {
+  var response = '';
+  command += "\n";
+  var listener = function(chunk) {
+    response += chunk.toString();
+    if (response.slice(0 - prompt.length) == prompt) {
+      connection.removeListener('data', listener);
+      return callback(null, response.slice(command.length, 0 - prompt.length));
+    }
+  };
+
+  var end = function() {
+    connection.removeListener('end', end);
+    return callback(null, response.slice(command.length));
+  };
+
+  if (prompt)
+    connection.on('data', listener);
+  else
+    connection.on('end', end);
+
+  if (command)
+    connection.write(command);
+}
+
+var getDeviceIp = function(deviceId, callback) {
+  var db = require('../../db');
+  var URL = require('url');
+
+  db.devicesCollection.findOne({_id : deviceId}, {'InternetGatewayDevice.ManagementServer.ConnectionRequestURL._value' : 1}, function(err, device) {
+    var connectionRequestUrl = device.InternetGatewayDevice.ManagementServer.ConnectionRequestURL._value;
+    var url = URL.parse(connectionRequestUrl);
+    return callback(url.hostname);
+  });
+};
+
+exports.init = function(deviceId, args, callback) {
+  return exports.get(deviceId, args, callback);
+}
+
+exports.get = function(deviceId, args, callback) {
+  var currentFrequencies = [];
+  var currentBandwidths = [];
+  var defaultBandwidth = '';
+  var final = [];
+
+  getDeviceIp(deviceId, function(ip) {
+    var client = telnetConnect(ip, function(err) {
+      // get frequencies
+      telnetExecute("sncfg get WMX_FREQ_LIST", client, "\n# ", function(err, response) {
+        if (err) return callback(err);
+        currentFrequencies = FREQUENCIES_REGEX.exec(response)[1].split(',')
+        // get bandwidths
+        telnetExecute("sncfg get WMX_FREQ_BANDWDITH_FL", client, "\n# ", function(err, response) {
+          if (err) return callback(err);
+          currentBandwidths = BANDWIDTHS_REGEX.exec(response)[1].split(',')
+          defaultBandwidth = DEFAULT_BW_REGEX.exec(response)[1]
+          // generate freq/bw pairs string
+          for (var i = 0; i < currentFrequencies.length; i++) {
+            final.push(currentFrequencies[i] + ' ' + currentBandwidths[i])
+          }
+          // log out
+          telnetExecute("exit", client, null, function(err, response) {
+            client.end();
+            return callback(err, defaultBandwidth + '-' + final.join(','));
+          });
+        });
+      });
+    });
+
+    client.on("error", function(err) {
+      client.destroy();
+      callback(err);
+    });
+
+    client.setTimeout(TIMEOUT, function() {
+      client.destroy();
+      callback("timeout");
+    });
+  });
+};
+
+var parsePairs = function(pairsString) {
+  var a = pairsString.split(',');
+  var f = [];
+  var b = [];
+  var l = [];
+  for (i in a) {
+    var sp = a[i].trim().split(' ');
+    f.push(parseInt(sp[0]));
+    b.push(parseFloat(sp[1]));
+  }
+  l.push(f.join(','));
+  l.push(b.join(','));
+  return l;
+}
+
+exports.set = function(deviceId, args, callback) {
+  var tmp = args.split('-');
+  var defaultBandwidth = tmp[0];
+  var pairs = parsePairs(tmp[1]);
+  var frequenciesString = pairs[0];
+  var bandwidthsString = pairs[1];
+
+  getDeviceIp(deviceId, function(ip) {
+    var client = telnetConnect(ip, function(err) {
+      //return callback(null, "ok");
+      telnetExecute("sncfg set WMX_FREQ_BANDWDITH_FL '" + defaultBandwidth + "-" + bandwidthsString + "'", client, "\n# ", function(err, response) {
+        if (err) return callback(err);
+        telnetExecute("sncfg set WMX_FREQ_LIST '" + frequenciesString + "'", client, "\n# ", function(err, response) {
+          if (err) return callback(err);
+          telnetExecute("sncfg commit", client, "\n# ", function(err, response) {
+            if (err) return callback(err);
+            // log out
+            telnetExecute("exit", client, null, function(err, response) {
+              client.end();
+              return callback(null, args);
+            });
+          });
+        });
+      });
+    });
+
+    client.on("error", function(err) {
+      client.destroy();
+      callback(err);
+    });
+
+    client.setTimeout(TIMEOUT, function() {
+      client.destroy();
+      callback("timeout");
+    });
+  });
+};