How do I check if the useragent is an ipad or iphone?

Question

I'm using a C# asp.net website.

How can I check if the user using ipad or iphone? How can I check the platform?

For example, if the user enter the website from ipad I'd like to display"Hello ipad user"

Solution 1

For iPad user agent is something like:

Mozilla/5.0(iPad; U; CPU iPhone OS 3_2 like Mac OS X; en-us) AppleWebKit/531.21.10 (KHTML, like Gecko) Version/4.0.4 Mobile/7B314 Safari/531.21.10

and for iPhone its somthing like:

Mozilla/5.0 (iPhone; U; CPU like Mac OS X; en) AppleWebKit/420+ (KHTML, like Gecko) Version/3.0 Mobile/1A543a Safari/419.3

Any many more depending on the version and wheather its iPhone 3 or 4

so better just do a substring search for iPhone and iPad as suggested by another answer

Solution 2

UPDATE on 17-07-2020: it looks like Apple removed the word iPad and now use Macintosh instead

UPDATE: Since the iPad user agent contains the word iPhone as @Rob Hruska mentioned:

Mozilla/5.0(iPad; U; CPU iPhone OS 3_2 like Mac OS X; en-us) AppleWebKit/531.21.10 (KHTML, like Gecko) Version/4.0.4 Mobile/7B314 Safari/531.21.10

and iPhone user agent is something like this:

Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_0 like Mac OS X; en-us) AppleWebKit/532.9 (KHTML, like Gecko) Version/4.0.5 Mobile/8A293 Safari/6531.22.7

it would be correct to check for the word iPhone; or iPad; to identify the device:

var userAgent = HttpContext.Current.Request.UserAgent.ToLower();
if (userAgent.Contains("iphone;"))
{
    // iPhone
}
else if (userAgent.Contains("ipad;") || userAgent.Contains("macintosh;"))
{
    // iPad
}
else
{
    // Think Different ;)
}

Solution 3

The user-agent for these devices includes "iPod", "iPad" or "IPhone" as appropriate. Note that there are several user agents in play, so an exact match is unwise - but have a look from your device at http://whatsmyuseragent.com

So check the user-agent in the headers.

Solution 4

you can do it by getting the UserAgent

string ua = Request.UserAgent;
if (ua != null && (ua.Contains("iPhone") || ua.Contains("iPad")))
{
...
...
...
}

Solution 5

I would try WURFL first http://wurfl.sourceforge.net/

They have .NET API and Very good code samples. http://wurfl.sourceforge.net/dotnet_index.php

The class that will help you is called WURFLManager and has the following methods:

Use WURFL http://wurfl.sourceforge.net/dotnet_index.php

If you using asp.net mvc you can use an ActionFilter

public class MobileActionFilterAttribute : ActionFilterAttribute
{
    // The WURFL database contains information about a huge number of devices and mobile browsers.
    // http://wurfl.sourceforge.net/
    // http://wurfl.sourceforge.net/dotnet_index.php
    // http://wurfl.sourceforge.net/help_doc.php

    private static readonly IWURFLManager WurflManager;

    static MobileActionFilterAttribute ()
    {
        IWURFLConfigurer configurer = new ApplicationConfigurer();
        WurflManager = WURFLManagerBuilder.Build(configurer);
    }

    public override void OnActionExecuting(ActionExecutingContext filterContext)
    {
        HttpRequestBase request = filterContext.RequestContext.HttpContext.Request;

        // We don't have ARR server for dev environment, so we still need to check to see if the current domain name is the mobile site.
        if (request.Url.AbsoluteUri.StartsWith(SiteConfiguration.Current.MobileSiteAddress, StringComparison.OrdinalIgnoreCase))
        {
            return;
        }

        // Creates a WURFLRequest object from an ASP.NET HttpRequest object
        WURFLRequest wurflRequest = WURFLRequestFactory.CreateRequest(HttpContext.Current.Request);

        // Indicates whether the current user agent string refers to a desktop agent.
        if (wurflRequest.IsDesktopRequest)
            return;

        // Get the information about the device
        IDevice deviceInfo = WurflManager.GetDeviceForRequest(wurflRequest);

        // Tells you if a device is a tablet computer (iPad and similar, regardless of OS)
        bool isTablet = string.Equals(deviceInfo.GetCapability("is_tablet") ?? string.Empty, "true", StringComparison.OrdinalIgnoreCase);

        if (isTablet)
        {
            // so we don't show the mobile site for iPad.
            return;
        }

        // Indicates whether the current user agent string refers to a mobile device.
        bool isMobileRequest = wurflRequest.IsMobileRequest;

        // Tells you if a device is wireless or not. Specifically a mobile phone or a PDA are considered wireless devices, a desktop PC or a laptop are not
        bool isWirelessDevice = string.Equals(deviceInfo.GetCapability("is_wireless_device") ?? string.Empty, "true", StringComparison.InvariantCultureIgnoreCase);

        if (isMobileRequest && isWirelessDevice)
        {
            // we can redirect to the mobile site!
            filterContext.Result = new RedirectResult(SiteConfiguration.Current.MobileSiteAddress);
        }
    }
}

There is also 51Degrees.Mobi Steve Sanderson has covered how to do this on his blog http://blog.stevensanderson.com/2010/12/17/using-51degreesmobi-foundation-for-accurate-mobile-browser-detection-on-aspnet-mvc-3/

51Degrees.Mobi Foundation is an open source .NET project that enhances Request.Browser so it gets its information from Wireless Universal Resource File (WURFL) – one of the most comprehensive and up-to-date databases of mobile device information. The great news is that 51Degrees.Mobi Foundation is now available as a NuGet package, so it’s incredibly easy to install and update.

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