I am working on a Chrome extension, where in my JavaScript function should identify the logged in Windows username.
I want to access Windows' username within JavaScript and display it in my Chrome extension web page.
I tried following <script>, this works well in IE. Is there any equivalent way possible with the Chrome browser?
function GetUserName()
{
var wshell = new ActiveXObject("WScript.Shell");
alert(wshell.ExpandEnvironmentStrings("%USERNAME%"));
}
Please let me know any built-in method to extract the username.
You're using ActiveX which is only available in IE. In my opinion you should never be able to access information like this from within a browser (and usually can't). I doubt there is a solution which functions like you want.
Related
I need to automation my job by filing Forms in webpage by js,I made a code like this:
var ie = new ActiveXObject("InternetExplorer.Application");
ie.visible = true;
ie.navigate("http://www.google.com");
while (ie.busy) WScript.Sleep(100);
ie.document.getElementsByName('q')[0].value ="3";
var Butn = ie.document.getElementsByName('btnK')[0];
Butn.click();
but I want this code work with another web browser (e.g.Firefox) so I tried something like this:
var ie = new ActiveXObject("Shell.Application");
var commandtoRun ="C:\\Program Files\\Mozilla Firefox\\firefox.exe";
ie.ShellExecute(commandtoRun,"http://www.google.com", "1");
while (ie.busy) WScript.Sleep(100);
ie.document.getElementsByName('q')[0].value ="3";
var Butn = ie.document.getElementsByName('btnK')[0];
Butn.click();
but this code throw an error:
'ie.document' is null or not an object
800A13F
I ask for any of these tow ways:
*dealing with a web browser already opened not only open one then applying the code.
*Identify the opened web browser in proper way to apply the code.
I can see that you are using an ActiveX object that is only supported by the IE browser.
This object is a Microsoft extension and is supported in Internet Explorer only.
If you are looking to automate the other browsers like Firefox, I suggest try to check Selenium web driver. I think that it is more suitable product to fulfill your requirements.
It is available to automate the browsers using many developing languages.
It looks like it is also possible to get an object of already opened browser.
See here: Can we use Selenium to work with an already open browser session?
Here is my code:
<script type="text/javascript"
src="http://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js">
</script>
<script>
$(function() {
var thing = [];
var bar = $.getJSON('C:\Users\cccompro\foo.json', function(obj) {
for (i = 0; i < obj.length; i++) {
thing.push(obj[i]);
}
});
});
</script>
I'm not sure why it doesn't work. "foo.json" contains an array of objects.
If you are trying the code at Question at Chrome or Chromium browsers, launch the browser instance with --allow-file-access-from-files flag set. Note that open instances of Chrome or Chromium should be closed when you launch the browser or the instance will be launched with the open browser instances' configuration folder, instead of with the flag set. You can launch Chrome or Chromium with an existing instance open and honoring the flag by using --user-data-dir flag with value set a different directory than open instance of Chrome or Chromium.
Technically, it is also possible to write to user file system without using an extension with window.webkitRequestFileSystem. Though using chrome.fileSystem within an extension provides an API designed to achieve the read/write.
See
Jquery load() only working in firefox?
Read local XML with JS
How to Write in file (user directory) using JavaScript?
How to use webkitRequestFileSystem at file: protocol
JavaScript/Ajax Write to File
Using <input type="file"> element
How to print all the txt files inside a folder using java script
You cannot read files directly from the users hard drive without the browsers permission. This would be a huge security issue if you could even though there are ways to allow this (checkout guests answer).
You could however try to make the user select the file and then read it with Javascript.
This is called the HTML 5 file API.
However, this doesn't work for any browser and you probably have to use a server anyway in this case.
For more information on this checkout this or this post.
Could browser inside a machine obtain the machine's MAC address?
I'm building an API which need obtain unique identification of the machine (ideally, it could be MAC address), however, after discussion and research, I realize browsers don't support this. If not, any way the browser could obtain device related data which could be used to replace MAC address?
For IE and ActiveX allowed:
function networkInfo(){
var wmi = new ActiveXObject ("WbemScripting.SWbemLocator");
var service = wmi.ConnectServer(".");
e = new Enumerator(service.ExecQuery("SELECT * FROM Win32_NetworkAdapterConfiguration WHERE IPEnabled = True"));
for(; !e.atEnd(); e.moveNext()) {
var s = e.item();
var macAddress = unescape(s.MACAddress);
}
return macAddress;
}
alert(networkInfo());
The Answer is no, a browser can't access the MAC address of a Device, with regular Js. However, have you explored Node JS? It has a Mac Plugin
that perhaps could be used in conjunction with another plugin called Browserify, Which could get you what you wanted. The benefit of using node is the massive amount of plugins that allow you to do things with js in your browser that you can't otherwise.
But you could create a unique UID on the page load, and save it somehow through localstorage, and pull that when you need a Device Specific ID. This won't work cross browser though. Hope this points you in the right direction. Good Luck.
I am trying to allow the user to configure my safari extension through a HTML preference page (as many Safari extensions do). I open this page from a javascript call inside my global html file:
var newTab = safari.application.activeBrowserWindow.openTab();
newTab.url = safari.extension.baseURI + "settings/settings.html";
What I can NOT manage to do is write anything from this settings.html into the actual Safari extension settings or access the global page.
safari.extension.settings.MY_SETTINGS = settingsData;
safari.extension.globalPage
Both of these calls result in exceptions and the objects appear undefined.
I then also tried to send messages, but never seem to receive them in the global space, where I thought I could then again access the settings.
safari.self.tab.dispatchMessage("store_settings", settingsData); //settings javascript
These message are not received by my event listener.
safari.self.addEventListener("message", process_messages, false); //GLOBAL javascript
Any idea why I can not access the extension settings? Do I need to initialise something for my settings.html to be able to access the extension settings?
PS: I have seen a similar approach working inside the ClickToPlugin Safari extension - so it should be possible, but I can't get it to work :(
In the global script, try safari.application.addEventListener.
If your html page is part of your extension then your settings.js script file will have access to safari.extension.globalPage. This object points to the window of your global.html.
From there you can call any object in that context. Debugging this however is a pain to say the least. Good luck :-)
I have been trying to access the information available when using the https://graph.facebok.com/id concept through JSON but have been unable to call or return any information based on different snippets of code I've found around. I'm not sure if I'm using the JSON function correctly or not.
For example,
var testlink = "https://graph.facebook.com/"+id+"/&callback=?";
$.getJSON(testlink,function(json){
var test;
$.each(json.data,function(i,fb){
test="<ul>"+json.name+"</ul>";
});
});
In this code, I am trying to return in the test variable the name. When I use this in a Google Chrome Extension, it just returns a blank page.
Alternatively, I've been also trying to use the Facebook Javascript SDK in my Google Chrome extension, but I am unsure what website I should be using when signing up for an API Key.
I believe that you need to establish either an OAuth session or provide your API key before you can talk to FB. It's been a while since I messed around with FB api but, I'm pretty sure you have to register before you can use the api.
Here's something that might be useful though, it's a javascript console for Facebook which would allow you to test out your code! http://developers.facebook.com/tools/console/
It's an issue with chrome, but I haven't figured out the exact problem. For example open the chrome inspector and type this into it:
$.getJSON("http://graph.facebook.com/prettyklicks/feed?limit=15&callback=?", function(json){console.log(json);});
Then do the same thing in Firefox. Chrome will return nothing, but FF will give you the JSON object. It's not the JSON call itself because if you call something else for instance:
$.getJSON("http://api.flickr.com/services/feeds/photos_public.gne?tags=cat&tagmode=any&format=json&jsoncallback=?", function(data) {console.log(data);});
It will come through normally. So there is some miscommunication between chrome and fb. The really confusing part is that if you browse directly to the graph entry by just pasting it into your address bar it will come through normally that way too.