added expressjs server instead of python one

nodeserver/node_modules/wmic/index.js

@@ -0,0 +1,193 @@
+"use strict";
+
+/*
+  wmic calls must always be serialised in windows, hence the use of async.queue
+*/
+
+var spawn = require('child_process').spawn,
+    async = require('async'),
+    fs    = require('fs');
+
+/**
+ * Need to split a command line string taking into account strings - that is, don't
+ * split spaces within a string. So that 'P1 P2 "Other Param" P4' is split into 4 param strings
+ * with param 3 = "Other Param" (not including quotes).
+ **/
+var splitter = function(cmd) {
+  cmd = cmd.trim();
+
+  var acc = [], inString = false, cur = "", l = cmd.length;
+
+  for (var i = 0 ; i < l ; i++ ){
+    var ch = cmd.charAt(i);
+    switch(ch) {
+    case '"':
+      inString = !inString;
+      if (!inString) {
+        if (cur.length > 0) {
+          acc.push(cur);
+          cur = "";
+        }
+      }
+      break;
+    case ' ':
+      if (inString) {
+        cur += ' ';
+      } else {
+        if (cur.length > 0) {
+          acc.push(cur);
+          cur = "";
+        }
+      }
+      break;
+    default:
+      cur += ch;
+      break;
+    }
+  }
+
+  if (cur.length > 0) acc.push(cur);
+
+  return acc;
+};
+
+
+var parse_list = function(data){
+
+  var blocks = data.split(/\n\n|\n,?\r/g)
+                   .filter(function(block) { return block.length > 2; });
+
+  var list = [];
+
+  blocks.forEach(function(block) {
+    var obj   = {},
+        lines = block.split(/\n+|\r+/).filter(function(line) { return line.indexOf('=') !== -1 });
+
+    lines.forEach(function(line) {
+      var kv = line.replace(/^,/, '').split("=");
+      obj[kv[0]] = kv[1];
+    })
+
+    if (Object.keys(obj).length > 0)
+      list.push(obj);
+  })
+
+  return list;
+}
+
+var parse_values = function(out){
+
+  var obj = {};
+  var data = out.toString().trim().split('\n')
+               .map(function(line){
+                 return line.trim().split(/\s+/);
+               });
+
+  data[0].forEach(function(k, i) {
+    if (data[1] && data[1][i])
+      obj[k] = data[1][i];
+  })
+
+  return obj;
+}
+
+/**
+ * Run the wmic command provided.
+ *
+ * The resulting output string has an additional pid property added so, one may get the process
+ * details. This seems the easiest way of doing so given the run is in a queue.
+ **/
+var run = exports.run = function(cmd, cb) {
+  queue.push(cmd, cb);
+};
+
+var queue = async.queue(function(cmd, cb) {
+
+  var opts = { env: process.env, cwd: process.env.TEMP };
+  if (opts.env.PATH.indexOf('system32') === -1) {
+    opts.env.PATH += ';' + process.env.WINDIR + "\\system32";
+    opts.env.PATH += ';' + process.env.WINDIR + "\\system32\\wbem";
+  }
+
+  var wm = spawn('wmic', splitter(cmd), opts),
+      pid = wm.pid,
+      stdout = [],
+      stderr = [];
+
+  var done = function(err) {
+    var str = stdout.toString().replace(/^,/, '').replace(/,\s+$/, '').trim();
+    cb(err, str, pid);
+  }
+
+  wm.on('error', function(e) {
+    if (e.code == 'ENOENT')
+      e.message = 'Unable to find wmic command in path.';
+
+    done(e);
+  })
+
+  wm.stdout.on('data', function(d) {
+    // console.log('Got out: ' + d.toString())
+    stdout.push(d);
+  });
+
+  wm.stderr.on('data', function(e) {
+    // console.log('Got error: ' + e.toString())
+    stderr.push(e);
+  });
+
+  wm.on('exit',function(code) {
+    // remove weird temp file generated by wmic
+    fs.unlink('TempWmicBatchFile.bat', function() { /* noop */ });
+
+    var e = stderr.toString().trim() == '' ? null : new Error(stderr);
+
+    process.nextTick(function() {
+      done(e);
+    })
+  });
+
+  wm.stdin.end();
+
+});
+
+exports.get_value = function(section, value, condition, cb){
+  var cond = condition ? ' where "' + condition + '" ' : '';
+  var cmd = section + cond + ' get ' + value + ' /value';
+
+  run(cmd, function(err, out){
+    if (err) return cb(err);
+
+    var str = out.match(/=(.*)/);
+
+    if (str)
+      cb(null, str[1].trim());
+    else
+      cb(new Error("Wmic: Couldn't get " + value + " in " + section));
+  })
+}
+
+exports.get_values = function(section, keys, condition, cb){
+
+  var cond = condition ? ' where "' + condition + '" ' : '';
+  var cmd = section + cond + ' get ' + keys;
+
+  run(cmd, function(err, out){
+    if (err) return cb(err);
+    cb(null, parse_values(out));
+  });
+
+};
+
+
+/**
+ * Calls back an array of objects for the given command.
+ *
+ * This only works for alias commands with a LIST clause.
+ **/
+exports.get_list = function(cmd, callback) {
+  run(cmd + ' list full', function(err, data) {
+    if (err) return callback(err);
+    callback(null, parse_list(data));
+  });
+};