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Anderson_Hamer
Anderson_Hamer
Level 4
September 3, 2021
Solved

How to get browser details in AEM Servlet?

  • September 3, 2021
  • 7 replies
  • 4374 views

I am trying to get browser name in servlet but it is giving me all browser details. Is there any way to get accurate browser name ?

 

String browserName = req.getHeader("User-Agent"); String secNa = req.getHeader("sec-ch-ua"); LOG.info("browserName !!!!!!!"+browserName); LOG.info("secNa !!!!!!!"+secNa);

Below are log info

FF browser:-
browserName !!!!!!!Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:91.0) Gecko/20100101 Firefox/91.0
secNa !!!!!!! null


Chrome brwoser
browserName !!!!!!!Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.131 Safari/537.36
secNa !!!!!!!"Chromium";v="92", " Not A;Brand";v="99", "Google Chrome";v="92"


Opera brwoser :-
browserName !!!!!!!Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.131 Safari/537.36 OPR/78.0.4093.147
secNa !!!!!!!" Not A;Brand";v="99", "Chromium";v="92", "Opera";v="78"

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Best answer by VKumar2

Hi @anderson_hamer  - There are couple of options which you might try to sort out this one. First way is a lengthy way to parse the string(User Agent) and extract the desired result.

Another way you can include below JS file to your AEM code and pass the agent in Ajax call to the servlet or using hidden variable in HTL.

 

Sample code would be like below (change to AEM specific)

JS File :: https://github.com/bestiejs/platform.js

<script src="platform.js"></script>
<script>
var os = platform.os;
var browser = platform.name + ' ' + platform.version;
</script>

 

Alternatively you an include the Java dependency in your AEM pom.xml file and get the exact browser name:

 

<dependency>
<groupId>user-agent-utils</groupId>
<artifactId>user-agent-utils</artifactId>
<version>1.2.3</version>
</dependency>

 

String userAgent = req.getHeader("user-agent");
UserAgent ua = UserAgent.parseUserAgentString(userAgent);
String browserName = ua.getBrowser().toString();

 

Thanks,

7 replies

sachinn20956098
sachinn20956098
Level 2
September 4, 2021

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. 

    kautuk_sahni
    Community Manager
    kautuk_sahniCommunity Manager
    Community Manager
    September 6, 2021

    @sachinn20956098 Good to have you in AEM community. Keep assisting other. 

    Kautuk Sahni
      rampai
      Community Advisor
      rampaiCommunity Advisor
      Community Advisor
      September 4, 2021

      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

       

        RitendraS11
        RitendraS11
        Level 4
        September 4, 2021

        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!

          kautuk_sahni
          Community Manager
          kautuk_sahniCommunity Manager
          Community Manager
          September 6, 2021

          RitendraS11  Good to have you in AEM community. Keep assisting other. 

          Kautuk Sahni
            V
            VKumar2Accepted solution
            Level 2
            September 4, 2021

            Hi @anderson_hamer  - There are couple of options which you might try to sort out this one. First way is a lengthy way to parse the string(User Agent) and extract the desired result.

            Another way you can include below JS file to your AEM code and pass the agent in Ajax call to the servlet or using hidden variable in HTL.

             

            Sample code would be like below (change to AEM specific)

            JS File :: https://github.com/bestiejs/platform.js

            <script src="platform.js"></script>
            <script>
            var os = platform.os;
            var browser = platform.name + ' ' + platform.version;
            </script>

             

            Alternatively you an include the Java dependency in your AEM pom.xml file and get the exact browser name:

             

            <dependency>
            <groupId>user-agent-utils</groupId>
            <artifactId>user-agent-utils</artifactId>
            <version>1.2.3</version>
            </dependency>

             

            String userAgent = req.getHeader("user-agent");
            UserAgent ua = UserAgent.parseUserAgentString(userAgent);
            String browserName = ua.getBrowser().toString();

             

            Thanks,

              BrianKasingli
              Community Advisor and Adobe Champion
              BrianKasingliCommunity Advisor and Adobe Champion
              Community Advisor and Adobe Champion
              September 5, 2021

              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"
                Rohit_Utreja
                Community Advisor
                Rohit_UtrejaCommunity Advisor
                Community Advisor
                September 6, 2021

                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);
                  N
                  nick-sif
                  February 17, 2022

                  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.

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