Changing the UserAgent

[mnmccarry]

Hi.

I'm using CEF to embed a browser pane inside a wxWidgets app, replacing an IEHtmlWin ActiveX component. I've managed to get most of the functionality that IE was used for set up and working within CEF and I have really enjoyed using this component.

One of the last things that I need to get working is to modify the user agent to add the name of the app onto the end of the user agent string.

I thought that I would be able to do this in the Request Object before a navigation is made via the HandleBeforeBrowse method of the handler but I've not found a way to make this change within the request object.

I'm sure that there is something simple that I am overlooking but any pointers in the correct direction to modify the User Agent string would be very much appreciated. Ideally I would like to modify the string from :

Mozilla/5.0 (Windows; U; Windows NT 5.1;en-US) AppleWebKit/530.10 (KHTML, like Gecko)/1, 0, 0, 1 Safari/530.10

to:

Mozilla/5.0 (Windows; U; Windows NT 5.1;en-US) AppleWebKit/530.10 (KHTML, like Gecko)/1, 0, 0, 1 Safari/530.10 (MyApplicationName)

Any suggestions will be very much appreciated.

Many thanks in advance,

Martin McCarry

[magreenblatt]

Hi Martin,

Setting the UserAgent is not currently exposed by the CEF API. You can, however, modify the BrowserRequestContext::GetUserAgent() method in browser_request_context.cc to return your custom string.

Regards,
Marshall

[mnmccarry]

Thanks Marshall.

I had hoped to create a roll in replacement for the IE component using the prebuilt cef dll, but I guess there's no escaping having to build the framework to add this string in, hehe that would have been too easy!

You've done a great job with this component and many thanks for pointing me in the right direction!

Martin

[joshuaanderson]

Hello. I was wondering if this advice is still the same, as I can't find the browser_request_context.cc file.

[magreenblatt]

Hello. I was wondering if this advice is still the same, as I can't find the browser_request_context.cc file.

These days you can set the user agent string via CefSettings.user_agent. For example:

Code: Select all

CefString(&settings.user_agent) = "MyBrowser/1.0";

[asarchit65]

Hello. I was wondering if this advice is still the same, as I can't find the browser_request_context.cc file.

These days you can set the user agent string via CefSettings.user_agent. For example:

Code: Select all

CefString(&settings.user_agent) = "MyBrowser/1.0";

In which file have i to make changes to change useragent?

[TheoR74]

Is there a way to Just Append to the current user agent information?

[magreenblatt]

Is there a way to Just Append to the current user agent information?

No.

[magreenblatt]

In which file have i to make changes to change useragent?

Wherever your application is calling CefInitialize.

[TheoR74]

Is there a way to Just Append to the current user agent information?

No.

Then, is there a away to get the current value before making a change? Or is it not really set at that point? Basically, all I want to do is append to the browser cap, the name of my custom browser along with the other information.