Current File : //home1/dimen328/.trash/espace/verification/index/errlog.js.tВlВchargement
/**
* Module for trapping Javascript errors at window level and logging them server-side.
* Just execute it to bind to the window.onerror.
*
* The url of the server can be configured by defining sf.errorlog.config({url:'...'})
* Disabling the server communication can be done sf.errorlog.config({localMode:true})
*/
/*global define, window*/
define(['jquery'], function ($) {
'use strict';
var errlog = {},
config = {
localMode:false,
preventDefault:false,
maxMsgLength:1024,
maxErrorQueue:1024, // maximum number of entries
laps:1000, // One request max each seconds
url:"rpc/logError"
},
previousErrorHandler = null,
errorQueue = [],
// This variable is used to configure only once the call to SendOutError().
timerSet = false;
function sendErr(params) {
$.ajax({
type:'POST',
url:config.url,
headers:{'Content-Type':'application/json'},
data:JSON.stringify(params)
});
}
function sendOutError() {
timerSet = false;
var errorsToSend = [];
var size = errorQueue.length;
for (var i=0; i < size; i++) {
var error = errorQueue[i];
var jsonError = {
loc:error.loc,
ln:error.line ? error.line.toString() : '',
err:error.msg.substr(0, config.maxMsgLength)
};
errorsToSend[i] = jsonError;
}
// Cleaning the queue
errorQueue = [];
var params = {
url: document.URL,
errors: errorsToSend
};
sendErr(params);
}
errlog.queueError = function (msg, fileLoc, lineNo) {
if (errorQueue.length > 0) {
var lastError = errorQueue.pop();
// Avoid duplicate errors
if (lastError.msg !== msg || lastError.loc !== fileLoc || lastError.line !== lineNo) {
errorQueue.push(lastError);
}
}
if (errorQueue.length < config.maxErrorQueue) {
errorQueue.push({msg:msg, loc:fileLoc, line:lineNo});
}
};
/**
* The error handler which gets wired to the window.onerror
*
* @param msg
* @param fileLoc
* @param lineNo
* @return {Boolean} false means that the default handler
*/
errlog.onerror = function (msg, fileLoc, lineNo) {
errlog.queueError(msg, fileLoc, lineNo);
if (typeof(previousErrorHandler) === "function") {
// call any existing error handler
previousErrorHandler(msg, fileLoc, lineNo);
}
if (!timerSet) {
timerSet = true;
window.setTimeout(sendOutError, config.laps);
}
return config.localMode ? false : config.preventDefault;
};
/**
* Change and get the configuration of the error log
*
* @param newConfig Object overwrite the configurable parameters.
* @return the current config
*/
errlog.config = function (newConfig) {
if (newConfig !== undefined) {
if (typeof(newConfig.url) !== 'undefined' &&
( newConfig.url === null || newConfig.url === '')) {
throw new Error("url cannot be empty");
}
config = $.extend({}, config, newConfig);
}
return Object.create(config);
};
/**
* Reset the errors queue
*/
errlog.reset = function () {
errorQueue = [];
};
// Wire the error handler to the window
previousErrorHandler = window.onerror;
window.onerror = errlog.onerror;
Object.freeze(errlog);
return errlog;
});
Mini Shell