/
torbutton-logger.js
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/
torbutton-logger.js
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// Bug 1506 P1: This is just a handy logger. If you have a better one, toss
// this in the trash.
/*************************************************************************
* TBLogger (JavaScript XPCOM component)
*
* Allows loglevel-based logging to different logging mechanisms.
*
*************************************************************************/
// Module specific constants
const kMODULE_NAME = "Torbutton Logger";
const kMODULE_CONTRACTID = "@torproject.org/torbutton-logger;1";
const kMODULE_CID = Components.ID("f36d72c9-9718-4134-b550-e109638331d7");
ChromeUtils.import("resource://torbutton/modules/default-prefs.js", {}).ensureDefaultPrefs();
const {Services} = ChromeUtils.import("resource://gre/modules/Services.jsm");
function TorbuttonLogger() {
// Register observer
Services.prefs.addObserver("extensions.torbutton", this);
this.loglevel = Services.prefs.getIntPref("extensions.torbutton.loglevel");
this.logmethod = Services.prefs.getIntPref("extensions.torbutton.logmethod");
try {
var logMngr = Cc["@mozmonkey.com/debuglogger/manager;1"]
.getService(Ci.nsIDebugLoggerManager);
this._debuglog = logMngr.registerLogger("torbutton");
} catch (exErr) {
this._debuglog = false;
}
this._console = Services.console;
// This JSObject is exported directly to chrome
this.wrappedJSObject = this;
this.log(3, "Torbutton debug output ready");
}
/**
* JS XPCOM component registration goop:
*
* Everything below is boring boilerplate and can probably be ignored.
*/
const nsISupports = Ci.nsISupports;
const nsIClassInfo = Ci.nsIClassInfo;
const nsIComponentRegistrar = Ci.nsIComponentRegistrar;
const nsIObserverService = Ci.nsIObserverService;
const logString = { 1:"VERB", 2:"DBUG", 3: "INFO", 4:"NOTE", 5:"WARN" };
function padInt(i)
{
return (i < 10) ? '0' + i : i;
}
TorbuttonLogger.prototype =
{
QueryInterface: ChromeUtils.generateQI([Ci.nsIClassInfo]),
wrappedJSObject: null, // Initialized by constructor
// make this an nsIClassInfo object
flags: nsIClassInfo.DOM_OBJECT,
// method of nsIClassInfo
classDescription: "TorbuttonLogger",
classID: kMODULE_CID,
contractID: kMODULE_CONTRACTID,
// method of nsIClassInfo
getInterfaces: function(count) {
var interfaceList = [nsIClassInfo];
count.value = interfaceList.length;
return interfaceList;
},
// method of nsIClassInfo
getHelperForLanguage: function(count) { return null; },
formatLog: function(str, level) {
var d = new Date();
var now = padInt(d.getUTCMonth()+1)+"-"+padInt(d.getUTCDate())+" "+padInt(d.getUTCHours())+":"+padInt(d.getUTCMinutes())+":"+padInt(d.getUTCSeconds());
return "["+now+"] Torbutton "+logString[level]+": "+str;
},
// error console log
eclog: function(level, str) {
switch(this.logmethod) {
case 0: // stderr
if(this.loglevel <= level)
dump(this.formatLog(str, level)+"\n");
break;
default: // errorconsole
if(this.loglevel <= level)
this._console.logStringMessage(this.formatLog(str,level));
break;
}
},
safe_log: function(level, str, scrub) {
if (this.loglevel < 4) {
this.eclog(level, str+scrub);
} else {
this.eclog(level, str+" [scrubbed]");
}
},
log: function(level, str) {
switch(this.logmethod) {
case 2: // debuglogger
if(this._debuglog) {
this._debuglog.log((6-level), this.formatLog(str,level));
break;
}
// fallthrough
case 0: // stderr
if(this.loglevel <= level)
dump(this.formatLog(str,level)+"\n");
break;
default:
dump("Bad log method: "+this.logmethod);
case 1: // errorconsole
if(this.loglevel <= level)
this._console.logStringMessage(this.formatLog(str,level));
break;
}
},
// Pref observer interface implementation
// topic: what event occurred
// subject: what nsIPrefBranch we're observing
// data: which pref has been changed (relative to subject)
observe: function(subject, topic, data)
{
if (topic != "nsPref:changed") return;
switch (data) {
case "extensions.torbutton.logmethod":
this.logmethod = Services.prefs.getIntPref("extensions.torbutton.logmethod");
if (this.logmethod === 0) {
Services.prefs.setBoolPref("browser.dom.window.dump.enabled",
true);
} else if (Services.prefs.
getIntPref("extensions.torlauncher.logmethod", 3) !== 0) {
// If Tor Launcher is not available or its log method is not 0
// then let's reset the dump pref.
Services.prefs.setBoolPref("browser.dom.window.dump.enabled",
false);
}
break;
case "extensions.torbutton.loglevel":
this.loglevel = Services.prefs.getIntPref("extensions.torbutton.loglevel");
break;
}
}
}
/**
* XPCOMUtils.generateNSGetFactory was introduced in Mozilla 2 (Firefox 4).
* XPCOMUtils.generateNSGetModule is for Mozilla 1.9.2 (Firefox 3.6).
*/
const {XPCOMUtils} = ChromeUtils.import("resource://gre/modules/XPCOMUtils.jsm");
if (XPCOMUtils.generateNSGetFactory)
var NSGetFactory = XPCOMUtils.generateNSGetFactory([TorbuttonLogger]);
else
var NSGetModule = XPCOMUtils.generateNSGetModule([TorbuttonLogger]);