# NAME HTTP::BrowserDetect - Determine Web browser, version, and platform from an HTTP user agent string # VERSION version 3.18 # SYNOPSIS use HTTP::BrowserDetect; my $user_agent_string = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36'; my $ua = HTTP::BrowserDetect->new($user_agent_string); # Print general information print "Browser: $ua->browser_string\n" if $ua->browser_string; print "Version: $ua->browser_version$ua->browser_beta\n" if $ua->browser_version; print "OS: $ua->os_string\n" if $ua->os_string; # Detect operating system if ( $ua->windows ) { if ( $ua->winnt ) { # do something } if ( $ua->win95 ) { # do something } } print "Mac\n" if $ua->macosx; # Detect browser vendor and version print "Safari\n" if $ua->safari; print "MSIE\n" if $ua->ie; print "Mobile\n" if $ua->mobile; if ( $ua->browser_major(4) ) { if ( $ua->browser_minor() > .5 ) { # ...; } } if ( $ua->browser_version() > 4.5 ) { # ...; } # 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. For an online demonstration of this module's parsing, you can check out [http://www.browserdetect.org/](http://www.browserdetect.org/) This module was originally based upon the JavaScript browser detection code available at [http://www.mozilla.org/docs/web-developer/sniffer/browser\_type.html](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. # SUBROUTINES/METHODS # Browser Information ## browser() Returns the browser, as one of the following values: chrome, firefox, ie, opera, safari, adm, applecoremedia, blackberry, brave, browsex, dalvik, elinks, links, lynx, emacs, epiphany, galeon, konqueror, icab, lotusnotes, mosaic, mozilla, netfront, netscape, n3ds, dsi, obigo, polaris, pubsub, realplayer, seamonkey, silk, staroffice, ucbrowser, webtv If the browser could not be identified (either because unrecognized or because it is a robot), returns `undef`. ## browser\_string() Returns a human formatted version of the browser name. These names are subject to change and are meant for display purposes. This may include information additional to what's in browser() (e.g. distinguishing Firefox from Iceweasel). If the user agent could not be identified, or if it was identified as a robot instead, returns `undef`. # Browser Version Please note that that the version(), major() and minor() methods have been deprecated as of release 1.78 of this module. They should be replaced with browser\_version(), browser\_major(), browser\_minor(), and browser\_beta(). 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 (i.e. it will return incorrect versions for Safari in some cases). ## browser\_version() Returns the browser version (major and minor) as a string. For example, for Chrome 36.0.1985.67, this returns "36.0". ## browser\_major() Returns the major part of the version as a string. For example, for Chrome 36.0.1985.67, this returns "36". Returns undef if no version information can be detected. ## browser\_minor() Returns the minor part of the version as a string. This includes the decimal point; for example, for Chrome 36.0.1985.67, this returns ".0". Returns undef if no version information can be detected. ## browser\_beta() Returns any part of the version after the major and minor version, as a string. For example, for Chrome 36.0.1985.67, this returns ".1985.67". The beta part of the string can contain any type of alphanumeric characters. Returns undef if no version information can be detected. Returns an empty string if version information is detected but it contains only a major and minor version with nothing following. # Operating System ## os() Returns one of the following strings, or `undef`: windows, winphone, mac, macosx, linux, android, ios, os2, unix, vms, chromeos, firefoxos, ps3, psp, rimtabletos, blackberry, amiga, brew ## os\_string() Returns a human formatted version of the OS name. These names are subject to change and are really meant for display purposes. This may include information additional to what's in os() (e.g. distinguishing various editions of Windows from one another) (although for a way to do that that's more suitable for use in program logic, see below under "OS related properties"). Returns `undef` if no OS information could be detected. ## os\_version(), os\_major(), os\_minor(), os\_beta() Returns version information for the OS, if any could be detected. The format is the same as for the browser\_version() functions. # Mobile Devices ## mobile() Returns true if the browser appears to belong to a mobile phone or similar device (i.e. one small enough that the mobile version of a page is probably preferable over the desktop version). In previous versions, tablet devices sometimes had mobile() return true. They are now mutually exclusive. ## tablet() Returns true if the browser appears to belong to a tablet device. ## device() Returns the type of mobile / tablet hardware, if it can be detected. Currently returns one of: android, audrey, avantgo, blackberry, dsi, iopener, ipad, iphone, ipod, kindle, n3ds, palm, ps3, psp, wap, webos, winphone. Returns `undef` if this is not a tablet/mobile device or no hardware information can be detected. ## device\_string() 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. This may include additional information (such as the model of phone if it is detectable). Returns `undef` if this is not a portable device or if no device name can be detected. # Robots ## robot() If the user agent appears to be a robot, spider, crawler, or other automated Web client, this returns one of the following values: lwp, slurp, yahoo, bingbot, msnmobile, msn, msoffice, ahrefs, altavista, apache, askjeeves, baidu, curl, facebook, getright, googleadsbot, googleadsense, googlebotimage, googlebotnews, googlebotvideo, googlefavicon, googlemobile, google, golib, indy, infoseek, ipsagent, linkchecker, linkexchange, lycos, malware, mj12bot, nutch, phplib, puf, rubylib, scooter, specialarchiver, wget, yandexbot, yandeximages, java, unknown Returns "unknown" when the user agent is believed to be a robot but is not identified as one of the above specific robots. Returns `undef` if the user agent is not a robot or cannot be identified. Note that if a robot crafts a user agent designed to impersonate a particular browser, we generally set properties appropriate to both the actual robot, and the browser it is impersonating. For example, googlebot-mobile pretends to be mobile safari so that it will get mobile versions of pages. In this case, browser() will return 'safari', the properties will generally be set as if for Mobile Safari, the 'robot' property will be set, and robot() will return 'googlemobile'. ### lib() Returns true if the user agent appears to be an HTTP library or tool (e.g. LWP, curl, wget, java). Generally libraries are also classified as robots, although it is impossible to tell whether they are being operated by an automated system or a human. ### robot\_string() Returns a human formatted version of the robot name. These names are subject to change and are meant for display purposes. This may include additional information (e.g. robots which return "unknown" from robot() generally can be identified in a human-readable fashion by reading robot\_string() ). ### robot\_id() This method is currently in beta. Returns an id consisting of lower case letters, numbers and dashes. This id will remain constant, so you can use it for matching against a particular robot. The ids were introduced in version 3.14. There may still be a few corrections to ids in subsequent releases. Once this method becomes stable the ids will also be frozen. ### all\_robot\_ids() This method returns an c of all possible `robot_id` values. ## robot\_version(), robot\_major(), robot\_minor(), robot\_beta() Returns version information for the robot, if any could be detected. The format is the same as for the browser\_version() functions. Note that if a robot crafts a user agent designed to impersonate a particular browser, we generally return results appropriate to both the actual robot, and the browser it is impersonating. For example, googlebot-mobile pretends to be mobile safari so that it will get mobile versions of pages. In this case, robot\_version() will return the version of googlebot-mobile, and browser\_version() will return the version of Safari that googlebot-mobile is impersonating. # Browser Properties Operating systems, devices, browser names, rendering engines, and true-or-false methods (e.g. "mobile" and "lib") are all browser properties. For example, calling browser\_properties() for Mobile Safari running on an Android will return this list: ('android', 'device', 'mobile', 'mobile\_safari', 'safari', 'webkit') ## browser\_properties() Returns all properties for this user agent, as a list. Note that because a large number of cases must be considered, this will take significantly more time than simply querying the particular methods you care about. A mostly complete list of properties follows (i.e. each of these methods is both a method you can call, and also a property that may be in the list returned by browser\_properties() ). In addition to this list, robot(), lib(), device(), mobile(), and tablet() are all browser properties. ## OS related properties 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 win10 win10_0 wince winphone winphone7 winphone7_5 winphone8 winphone10 ### dotnet() ### x11() ### webview() ### chromeos() ### 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. ## Browser related properties 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. ### adm ### aol aol3 aol4 aol5 aol6 ### applecoremedia ### avantgo ### browsex ### chrome ### dalvik ### emacs ### epiphany ### firefox ### galeon ### icab ### ie ie3 ie4 ie4up ie5 ie5up ie55 ie55up 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. ### konqueror ### lotusnotes ### lynx links elinks ### mobile\_safari ### mosaic ### mozilla ### neoplanet neoplanet2 ### netfront ### netscape nav2 nav3 nav4 nav4up nav45 nav45up navgold nav6 nav6up ### obigo ### opera opera3 opera4 opera5 opera6 opera7 ### polaris ### pubsub ### realplayer The realplayer method above tests for the presence of either the RealPlayer plug-in "(r1 " or the browser "RealPlayer". ### realplayer\_browser The realplayer\_browser method tests for the presence of the RealPlayer browser (but returns 0 for the plugin). ### safari ### seamonkey ### silk ### staroffice ### ucbrowser ### webtv Netscape 6, even though it's 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). ## Device related properties The following methods are available, each returning a true or false value. ### android ### audrey ### avantgo ### blackberry ### dsi ### iopener ### iphone ### ipod ### ipad ### kindle ### kindlefire ### n3ds ### palm ### webos ### wap Note that 'wap' indicates that the device is capable of WAP, not necessarily that the device is limited to WAP only. Most modern WAP devices are also capable of rendering standard HTML. ### psp ### ps3 ## Robot properties These methods are now deprecated and will be removed in a future release. Please use the `robot()` and `robot_id()` methods to identify the bots. Use `robot_id()` if you need to match on a string, since the value that is returned by `robot` could possibly change in a future release. 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 ### apache ### askjeeves ### baidu ### bingbot ### curl ### facebook ### getright ### golib ### google ### googleadsbot ### googleadsense ### googlemobile ### indy ### infoseek ### ipsagent ### java ### linkexchange ### lwp ### lycos ### malware ### mj12bot ### msn ### msoffice ### puf ### rubylib ### slurp ### wget ### yahoo ### yandex ### yandeximages ## Engine properties The following properties indicate if a particular rendering engine is being used. ### webkit ### gecko ### trident ### presto ### khtml # Other methods ## user\_agent() Returns the value of the user agent string. Calling this method with a parameter to set the user agent has now been removed; please use HTTP::BrowserDetect->new() to pass the user agent string. ## 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 ## engine() Returns the rendering engine, one of the following: gecko, webkit, khtml, trident, ie, presto, netfront Note that this returns "webkit" for webkit based browsers (including Chrome/Blink). This is a change from previous versions of this library, which returned "KHTML" for webkit. Returns `undef` if none of the above rendering engines can be detected. ## engine\_string() Returns a human formatted version of the rendering engine. Note that this returns "WebKit" for webkit based browsers (including Chrome/Blink). This is a change from previous versions of this library, which returned "KHTML" for webkit. Returns `undef` if none of the known rendering engines can be detected. ## engine\_version(), engine\_major(), engine\_minor(), engine\_beta() Returns version information for the rendering engine, if any could be detected. The format is the same as for the browser\_version() functions. # Deprecated methods ## device\_name() Deprecated alternate name for device\_string() ## version() This is probably not what you want. Please use either browser\_version() or engine\_version() instead. Returns the version (major and minor) as a string. This function returns wrong values for some Safari versions, for compatibility with earlier code. browser\_version() returns correct version numbers for Safari. ## major() This is probably not what you want. Please use either browser\_major() or engine\_major() instead. Returns the integer portion of the browser version as a string. This function returns wrong values for some Safari versions, for compatibility with earlier code. browser\_version() returns correct version numbers for Safari. ## minor() This is probably not what you want. Please use either browser\_minor() or engine\_minor() instead. Returns the decimal portion of the browser version as a string. This function returns wrong values for some Safari versions, for compatibility with earlier code. browser\_version() returns correct version numbers for Safari. ## beta() This is probably not what you want. Please use browser\_beta() instead. Returns the beta version, consisting of any characters after the major and minor version number, as a string. This function returns wrong values for some Safari versions, for compatibility with earlier code. browser\_version() returns correct version numbers for Safari. ## public\_version(), public\_major(), public\_minor(), public\_beta() Deprecated. Please use browser\_version() and related functions instead. ## gecko\_version() If a Gecko rendering engine is used (as in Mozilla or Firefox), returns the engine version. If no Gecko browser is being used, or the version number can't be detected, returns undef. This is an old function, preserved for compatibility; please use engine\_version() in new code. # CREDITS Lee Semel, lee@semel.net (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 Daniel Stadie ben hengst Andrew Moise Atsushi Kato Marco Fontani Nicolas Doye # TO DO POD coverage is not 100%. # SEE ALSO "Browser ID (User-Agent) Strings", [http://www.zytrax.com/tech/web/browser\_ids.htm](http://www.zytrax.com/tech/web/browser_ids.htm) [HTML::ParseBrowser](https://metacpan.org/pod/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](http://github.com/oalders/http-browserdetect) - Reporting Issues [https://github.com/oalders/http-browserdetect/issues](https://github.com/oalders/http-browserdetect/issues) - AnnoCPAN: Annotated CPAN documentation [http://annocpan.org/dist/HTTP-BrowserDetect](http://annocpan.org/dist/HTTP-BrowserDetect) - CPAN Ratings [http://cpanratings.perl.org/d/HTTP-BrowserDetect](http://cpanratings.perl.org/d/HTTP-BrowserDetect) - Search CPAN [https://metacpan.org/module/HTTP::BrowserDetect](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](https://metacpan.org/pod/Dist::Zilla). If you're not familiar with this module, please see [https://github.com/oalders/http-browserdetect/issues/5](https://github.com/oalders/http-browserdetect/issues/5) for some helpful tips to get you started. # AUTHORS - Lee Semel - Peter Walsham - Olaf Alders (current maintainer) # COPYRIGHT AND LICENSE This software is copyright (c) 2017 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.