How to get browser details in AEM Servlet?

Is this really the accepted solution? Parse it yourself or import a third party dependency?

Surely AEM itself must know what sort of browser a request is coming through? There must be some property or other hidden in the Uberjar surely. I won't believe something as fundamental as this isn't in the system somewhere.

Hi @anderson_hamer ,

Please refer brloe thread to extract browser information in JAVA code.
https://stackoverflow.com/questions/1326928/how-can-i-get-client-information-such-as-os-and-browser/18030465

UserAgent userAgent = UserAgent.parseUserAgentString(request.getHeader("User-Agent"));
    Browser browser = userAgent.getBrowser();

    String browserName = browser.getName();
    //or 
    // String browserName = browser.getGroup().getName();
    Version browserVersion = userAgent.getBrowserVersion();
    System.out.println("The user is using browser " + browserName + " - version " + browserVersion);

You can try this library, https://github.com/ua-parser/uap-java

import ua_parser.Parser;
import ua_parser.Client;

...

String uaString = "Mozilla/5.0 (iPhone; CPU iPhone OS 5_1_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9B206 Safari/7534.48.3";

Parser uaParser = new Parser();
Client c = uaParser.parse(uaString);

System.out.println(c.userAgent.family); // => "Mobile Safari"
System.out.println(c.userAgent.major);  // => "5"
System.out.println(c.userAgent.minor);  // => "1"

System.out.println(c.os.family);        // => "iOS"
System.out.println(c.os.major);         // => "5"
System.out.println(c.os.minor);         // => "1"

System.out.println(c.device.family);    // => "iPhone"

In JAVA, you need to parse the user-agent string. It can be done by writing a parser of your own, which will lead to maintain it as well. The best recommended way would be to use a dependency as - 

<dependency>
  <groupId>com.blueconic</groupId>
  <artifactId>browscap-java</artifactId>
  <version>1.3.6</version>
</dependency>

 You can check more details from here - https://github.com/blueconic/browscap-java

Hope, this might help!

Hi @anderson_hamer,

Can't you check this using javascript instead?

Or you can try to apply the below checks using String API in Java.

Could you please check if this helps?

https://www.google.com/amp/s/www.geeksforgeeks.org/how-to-detect-the-user-browser-safari-chrome-ie-firefox-and-opera-using-javascript/amp/

Thanks, 

Ram

You will have to parse the User-Agent Header to identify the browser name. You can chose to use a java java library instead of writing this block of logic yourself since you need to actively maintain it.