NAME
   HTTP::BrowserDetect - Determine Web browser, version, and platform from
   an HTTP user agent string

VERSION
   version 1.73

SYNOPSIS
       use HTTP::BrowserDetect;

       my $browser = HTTP::BrowserDetect->new($user_agent_string);

       # Detect operating system
       if ($browser->windows) {
         if ($browser->winnt) ...
         if ($browser->win95) ...
       }
       print $browser->mac;

       # Detect browser vendor and version
       print $browser->netscape;
       print $browser->ie;
       if (browser->major(4)) {
       if ($browser->minor() > .5) {
           ...
       }
       }
       if ($browser->version() > 4) {
         ...;
       }

DESCRIPTION
   The HTTP::BrowserDetect object does a number of tests on an HTTP user
   agent string. The results of these tests are available via methods of
   the object.

   This module is based upon the JavaScript browser detection code
   available at
   <http://www.mozilla.org/docs/web-developer/sniffer/browser_type.html>.

CONSTRUCTOR AND STARTUP
 new()
       HTTP::BrowserDetect->new( $user_agent_string )

   The constructor may be called with a user agent string specified.
   Otherwise, it will use the value specified by $ENV{'HTTP_USER_AGENT'},
   which is set by the web server when calling a CGI script.

   You may also use a non-object-oriented interface. For each method, you
   may call HTTP::BrowserDetect::method_name(). You will then be working
   with a default HTTP::BrowserDetect object that is created behind the
   scenes.

SUBROUTINES/METHODS
 user_agent()
   Returns the value of the user agent string.

   Calling this method with a parameter has now been deprecated and this
   feature will be removed in an upcoming release.

 country()
   Returns the country string as it may be found in the user agent string.
   This will be in the form of an upper case 2 character code. ie: US, DE,
   etc

 language()
   Returns the language string as it is found in the user agent string.
   This will be in the form of an upper case 2 character code. ie: EN, DE,
   etc

 device()
   Returns the method name of the actual hardware, if it can be detected.
   Currently returns one of: android, audrey, blackberry, dsi, iopener,
   ipad, iphone, ipod, kindle, n3ds, palm, ps3, psp, wap, webos. Returns
   "undef" if no hardware can be detected

 device_name()
   Returns a human formatted version of the hardware device name. These
   names are subject to change and are really meant for display purposes.
   You should use the device() method in your logic. Returns one of:
   Android, Audrey, BlackBerry, Nintendo DSi, iopener, iPad, iPhone, iPod,
   Amazon Kindle, Nintendo 3DS, Palm, Sony PlayStation 3, Sony Playstation
   Portable, WAP capable phone, webOS. Also Windows-based smartphones will
   output various different names like HTC T7575. Returns "undef" if this
   is not a device or if no device name can be detected.

 browser_properties()
   Returns a list of the browser properties, that is, all of the tests that
   passed for the provided user_agent string. Operating systems, devices,
   browser names, mobile and robots are all browser properties.

Detecting Browser Version
   Please note that that the version(), major() and minor() methods have
   been superceded as of release 1.07 of this module. They are not yet
   deprecated, but should be replaced with public_version(), public_major()
   and public_minor() in new development.

   The reasoning behind this is that version() method will, in the case of
   Safari, return the Safari/XXX numbers even when Version/XXX numbers are
   present in the UserAgent string. Because this behaviour has been in
   place for so long, some clients may have come to rely upon it. So, it
   has been retained in the interest of "bugwards compatibility", but in
   almost all cases, the numbers returned by public_version(),
   public_major() and public_minor() will be what you are looking for.

 public_version()
   Returns the browser version as a floating-point number.

 public_major()
   Returns the integer portion of the browser version.

 public_minor()
   Returns the decimal portion of the browser version as a floating-point
   number less than 1. For example, if the version is 4.05, this method
   returns .05; if the version is 4.5, this method returns .5.

   On occasion a version may have more than one decimal point, such as
   'Wget/1.4.5'. The minor version does not include the second decimal
   point, or any further digits or decimals.

 version($version)
   Returns the version as a floating-point number. If passed a parameter,
   returns true if it is equal to the version specified by the user agent
   string.

 major($major)
   Returns the integer portion of the browser version. If passed a
   parameter, returns true if it equals the browser major version.

 minor($minor)
   Returns the decimal portion of the browser version as a floating-point
   number less than 1. For example, if the version is 4.05, this method
   returns .05; if the version is 4.5, this method returns .5. This is a
   change in behavior from previous versions of this module, which returned
   a string.

   If passed a parameter, returns true if equals the minor version.

   On occasion a version may have more than one decimal point, such as
   'Wget/1.4.5'. The minor version does not include the second decimal
   point, or any further digits or decimals.

 beta($beta)
   Returns any the beta version, consisting of any non-numeric characters
   after the version number. For instance, if the user agent string is
   'Mozilla/4.0 (compatible; MSIE 5.0b2; Windows NT)', returns 'b2'. If
   passed a parameter, returns true if equal to the beta version. If the
   beta starts with a dot, it is thrown away.

Detecting Rendering Engine
 engine_string()
   Returns one of the following:

   Gecko, KHTML, Trident, MSIE, NetFront

   Returns "undef" if no string can be found.

 engine_version()
   Returns the version number of the rendering engine. Currently this only
   returns a version number for Gecko and Trident. Returns "undef" for all
   other engines. The output is simply "engine_major" added with
   "engine_minor".

 engine_major()
   Returns the major version number of the rendering engine. Currently this
   only returns a version number for Gecko and Trident. Returns "undef" for
   all other engines.

 engine_minor()
   Returns the minor version number of the rendering engine. Currently this
   only returns a version number for Gecko and Trident. Returns "undef" for
   all other engines.

Detecting OS Platform and Version
   The following methods are available, each returning a true or false
   value. Some methods also test for the operating system version. The
   indentations below show the hierarchy of tests (for example, win2k is
   considered a type of winnt, which is a type of win32)

 windows()
       win16 win3x win31
       win32
           winme win95 win98
           winnt
               win2k winxp win2k3 winvista win7
               win8
                   win8_0 win8_1
       wince
       winphone
           winphone7 winphone7_5 winphone8

 dotnet()
 firefoxos()
 mac()
   mac68k macppc macosx ios

 os2()
 bb10()
 rimtabletos()
 unix()
     sun sun4 sun5 suni86 irix irix5 irix6 hpux hpux9 hpux10
     aix aix1 aix2 aix3 aix4 linux sco unixware mpras reliant
     dec sinix freebsd bsd

 vms()
 amiga()
 ps3gameos()
 pspgameos()
   It may not be possibile to detect Win98 in Netscape 4.x and earlier. On
   Opera 3.0, the userAgent string includes "Windows 95/NT4" on all Win32,
   so you can't distinguish between Win95 and WinNT.

 os_string()
   Returns one of the following strings, or undef. This method exists
   solely for compatibility with the HTTP::Headers::UserAgent module.

     Win95, Win98, WinNT, Win2K, WinXP, Win2k3, WinVista, Win7, Win8,
     Win8.1, Windows Phone, Mac, Mac OS X, iOS, Win3x, OS2, Unix, Linux,
     Firefox OS, Playstation 3 GameOS, Playstation Portable GameOS,
     RIM Tablet OS, BlackBerry 10

Detecting Browser Vendor
   The following methods are available, each returning a true or false
   value. Some methods also test for the browser version, saving you from
   checking the version separately.

  aol aol3 aol4 aol5 aol6
  chrome
  curl
  emacs
  firefox
  gecko
  icab
  ie ie3 ie4 ie4up ie5 ie55 ie6 ie7 ie8 ie9 ie10 ie11
  ie_compat_mode
   The ie_compat_mode is used to determine if the IE user agent is for the
   compatibility mode view, in which case the real version of IE is higher
   than that detected. The true version of IE can be inferred from the
   version of Trident in the engine_version method.

  java
  konqueror
  lotusnotes
  lynx links elinks
  mobile_safari
  mosaic
  mozilla
  neoplanet neoplanet2
  netfront
  netscape nav2 nav3 nav4 nav4up nav45 nav45up navgold nav6 nav6up
  opera opera3 opera4 opera5 opera6 opera7
  realplayer
  realplayer_browser
   The realplayer method above tests for the presence of either the
   RealPlayer plug-in "(r1 " or the browser "RealPlayer". To preserve
   "bugwards compatibility" and prevent false reporting, browser_string
   calls this method which ignores the "(r1 " plug-in signature.

  safari
  staroffice
  webtv
   Netscape 6, even though its called six, in the User-Agent string has
   version number 5. The nav6 and nav6up methods correctly handle this
   quirk. The Firefox test correctly detects the older-named versions of
   the browser (Phoenix, Firebird).

 browser_string()
   Returns undef on failure. Otherwise returns one of the following:

   Netscape, Firefox, Safari, Chrome, MSIE, WebTV, AOL Browser, Opera,
   Mosaic, Lynx, Links, ELinks, RealPlayer, IceWeasel, curl, puf, NetFront,
   Mobile Safari, BlackBerry.

 gecko_version()
   If a Gecko rendering engine is used (as in Mozilla or Firefox), returns
   the version of the renderer (e.g. 1.3a, 1.7, 1.8) This might be more
   useful than the particular browser name or version when correcting for
   quirks in different versions of this rendering engine. If no Gecko
   browser is being used, or the version number can't be detected, returns
   undef.

Detecting Other Devices
   The following methods are available, each returning a true or false
   value.

  android
  audrey
  avantgo
  blackberry
  dsi
  iopener
  iphone
  ipod
  ipad
  kindle
  n3ds
  obigo
  palm
  webos
  wap
  psp
  ps3
 mobile()
   Returns true if the browser appears to belong to a handheld device.

 tablet()
   Returns true if the browser appears to belong to a tablet device.

 robot()
   Returns true if the user agent appears to be a robot, spider, crawler,
   or other automated Web client.

   The following additional methods are available, each returning a true or
   false value. This is by no means a complete list of robots that exist on
   the Web.

  ahrefs
  altavista
  askjeeves
  baidu
  facebook
  getright
  google
  googleadsbot
  googleadsense
  googlemobile
  infoseek
  linkexchange
  lwp
  lycos
  msn (same as bing)
  puf
  slurp
  webcrawler
  wget
  yahoo
  yandex
  yandeximages
CREDITS
   Lee Semel, [email protected] (Original Author)

   Peter Walsham (co-maintainer)

   Olaf Alders, "olaf at wundercounter.com" (co-maintainer)

ACKNOWLEDGEMENTS
   Thanks to the following for their contributions:

   cho45

   Leonardo Herrera

   Denis F. Latypoff

   merlynkline

   Simon Waters

   Toni Cebrin

   Florian Merges

   david.hilton.p

   Steve Purkis

   Andrew McGregor

   Robin Smidsrod

   Richard Noble

   Josh Ritter

   Mike Clarke

   Marc Sebastian Pelzer

   Alexey Surikov

   Maros Kollar

   Jay Rifkin

   Luke Saunders

   Jacob Rask

   Heiko Weber

   Jon Jensen

   Jesse Thompson

   Graham Barr

   Enrico Sorcinelli

   Olivier Bilodeau

   Yoshiki Kurihara

   Paul Findlay

   Uwe Voelker

   Douglas Christopher Wilson

   John Oatis

   Atsushi Kato

   Ronald J. Kimball

   Bill Rhodes

   Thom Blake

   Aran Deltac

   yeahoffline

   David Ihnen

   Hao Wu

   Perlover

TO DO
   The "_engine()" method currently only handles Gecko and Trident. It
   needs to be expanded to handle other rendering engines.

   POD coverage is also not 100%.

SEE ALSO
   "Browser ID (User-Agent) Strings",
   <http://www.zytrax.com/tech/web/browser_ids.htm>

   HTML::ParseBrowser.


SUPPORT
   You can find documentation for this module with the perldoc command.

       perldoc HTTP::BrowserDetect

   You can also look for information at:

   *   GitHub Source Repository

       <http://github.com/oalders/http-browserdetect>

   *   Reporting Issues

       <https://github.com/oalders/http-browserdetect/issues>

   *   AnnoCPAN: Annotated CPAN documentation

       <http://annocpan.org/dist/HTTP-BrowserDetect>

   *   CPAN Ratings

       <http://cpanratings.perl.org/d/HTTP-BrowserDetect>

   *   Search CPAN

       <https://metacpan.org/module/HTTP::BrowserDetect>

BUGS AND LIMITATIONS
   The biggest limitation at this point is the test suite, which really
   needs to have many more UserAgent strings to test against.

CONTRIBUTING
   Patches are certainly welcome, with many thanks for the excellent
   contributions which have already been received. The preferred method of
   patching would be to fork the GitHub repo and then send me a pull
   request, but plain old patch files are also welcome.

   If you're able to add test cases, this will speed up the time to release
   your changes. Just edit t/useragents.json so that the test coverage
   includes any changes you have made. Please contact me if you have any
   questions.

   This distribution uses Dist::Zilla. If you're not familiar with this
   module, please see
   <https://github.com/oalders/http-browserdetect/issues/5> for some
   helpful tips to get you started.

AUTHORS
   *   Lee Semel <[email protected]>

   *   Peter Walsham

   *   Olaf Alders <[email protected]> (current maintainer)

COPYRIGHT AND LICENSE
   This software is copyright (c) 2014 by Lee Semel.

   This is free software; you can redistribute it and/or modify it under
   the same terms as the Perl 5 programming language system itself.

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