diff -r 000000000000 -r 6474c204b198 testing/specialpowers/content/MozillaLogger.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/testing/specialpowers/content/MozillaLogger.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,121 @@
+/**
+ * MozillaLogger, a base class logger that just logs to stdout.
+ */
+
+function MozillaLogger(aPath) {
+}
+
+MozillaLogger.prototype = {
+
+  init : function(path) {},
+  
+  getLogCallback : function() {
+    return function (msg) {
+      var data = msg.num + " " + msg.level + " " + msg.info.join(' ') + "\n";
+      dump(data);
+    }
+  },
+
+  log : function(msg) {
+    dump(msg);
+  },
+
+  close : function() {}
+};
+
+
+/**
+ * SpecialPowersLogger, inherits from MozillaLogger and utilizes SpecialPowers.
+ * intented to be used in content scripts to write to a file
+ */
+function SpecialPowersLogger(aPath) {
+  // Call the base constructor
+  MozillaLogger.call(this);
+  this.prototype = new MozillaLogger(aPath);
+  this.init(aPath);
+}
+
+SpecialPowersLogger.prototype = {
+  init : function (path) {
+    SpecialPowers.setLogFile(path);
+  },
+
+  getLogCallback : function () {
+    return function (msg) {
+      var data = msg.num + " " + msg.level + " " + msg.info.join(' ') + "\n";
+      SpecialPowers.log(data);
+
+      if (data.indexOf("SimpleTest FINISH") >= 0) {
+        SpecialPowers.closeLogFile();
+      }
+    }
+  },
+
+  log : function (msg) {
+    SpecialPowers.log(msg);
+  },
+
+  close : function () {
+    SpecialPowers.closeLogFile();
+  }
+};
+
+
+/**
+ * MozillaFileLogger, a log listener that can write to a local file.
+ * intended to be run from chrome space
+ */
+
+/** Init the file logger with the absolute path to the file.
+    It will create and append if the file already exists **/
+function MozillaFileLogger(aPath) {
+  // Call the base constructor
+  MozillaLogger.call(this);
+  this.prototype = new MozillaLogger(aPath);
+  this.init(aPath);
+}
+
+MozillaFileLogger.prototype = {
+  
+  init : function (path) {
+    var PR_WRITE_ONLY   = 0x02; // Open for writing only.
+    var PR_CREATE_FILE  = 0x08;
+    var PR_APPEND       = 0x10;
+    this._file = Components.classes["@mozilla.org/file/local;1"].
+                            createInstance(Components.interfaces.nsILocalFile);
+    this._file.initWithPath(path);
+    this._foStream = Components.classes["@mozilla.org/network/file-output-stream;1"].
+                                     createInstance(Components.interfaces.nsIFileOutputStream);
+    this._foStream.init(this._file, PR_WRITE_ONLY | PR_CREATE_FILE | PR_APPEND,
+                                     0664, 0);
+  },
+
+  getLogCallback : function() {
+    return function (msg) {
+      var data = msg.num + " " + msg.level + " " + msg.info.join(' ') + "\n";
+      if (MozillaFileLogger._foStream)
+        this._foStream.write(data, data.length);
+
+      if (data.indexOf("SimpleTest FINISH") >= 0) {
+        MozillaFileLogger.close();
+      }
+    }
+  },
+
+  log : function(msg) {
+    if (this._foStream)
+      this._foStream.write(msg, msg.length);
+  },
+
+  close : function() {
+    if(this._foStream)
+      this._foStream.close();
+  
+    this._foStream = null;
+    this._file = null;
+  }
+};
+
+this.MozillaLogger = MozillaLogger;
+this.SpecialPowersLogger = SpecialPowersLogger;
+this.MozillaFileLogger = MozillaFileLogger;