agent_orange

User Agent detection for Ruby. ActionController integration coming soon.

(NOTE: Should we change the project’s name? Please visit the Issues to chime in.)

About

There are quite a few User Agent parsing libraries already, but none of them make adequate detection of mobile browsers and clients. With such a significant number of requests coming from mobile users a library with the ability to detect what type of device a user is coming from is necessary.

This library for Ruby will allow you to detect whether a user is on a computer, a mobile device, or is a bot (such as Google). It was composed by using techniques gathered from several other libraries/gems in an effort to be consistent and cover as many types of agents as possible.

Project Status

Stable, but needs improvement.

This library does detect the requesting user (device, platform, os, framework, and browser with versions) and now has some rpsec tests. While it is stable and no large restructuring is planned, it can use some optimizations and improvements to the detection algorithms. The techniques currently in place are rather simple, and not perfect (for example, it is currently confused if it sees both Chrome and Safari in user agent string, and doesn’t pick based on order of appearance). If you’d like to help, please contact me.

Installation

gem install agent_orange

If you’re going to use it with Rails then add the gem to your Gemfile.

Example Usage

Create new user agent parser

>> ua = AgentOrange::UserAgent.new(user_agent_string)

Looking at the device

>> device = ua.device
=> "Mobile"
>> device.type
=> "mobile"
>> device.name
=> "Mobile"
>> device.version
=> nil

Check to see if the device is mobile, a desktop/laptop/server computer, or a bot

>> device.is_mobile?
=> true
>> device.is_computer?
=> false
>> device.is_bot?
=> false

Use the proxies to check if the user is on a mobile device

>> ua.is_mobile?
=> true

Looking at the platform

>> platform = ua.device.platform
=> "iPhone"
>> platform.type
=> "iphone"
>> platform.name
=> "iPhone"
>> platform.version
=> "3GS"

Looking at the operating system

>> os = ua.device.operating_system
=> "iPhone OS 4.3"
>> os.type
=> "iphone_os"
>> os.name
=> "iPhone OS"
>> os.version
=> "4.3"

Looking at the web engine

>> engine = ua.device.engine
=> "WebKit 5.3"
>> engine.type
=> "webkit"
>> engine.name
=> "WebKit"
>> engine.version
=> "5.3.1.2321"

Looking at the browser

>> browser = ua.device.engine.browser
=> "Internet Explorer 10"
>> browser.type
=> "ie"
>> browser.name
=> "Internet Explorer"
>> browser.version
=> "10.0.112"

Quickly get to the browser version

>> AgentOrange::UserAgent.new(user_agent_string).device.engine.browser.version
=> "10.0.112"

General Class Definition

This is not up to date or a reflection of the actual class structure. This will be updated eventually. See rubydoc.info/gems/agent_orange/frames for more detailed docs.

AgentOrange::UserAgent

device
parse
is_computer?   # proxy
is_mobile?     # proxy
is_bot?        # proxy
to_s

AgentOrange::Device

parse
type
name
version
is_computer?(name=nil) # 
is_mobile?(name=nil)   # accepts a :symbol or "String"
is_bot?(name=nil)      #
to_s

AgentOrange::Engine

parse
type
name
version
to_s

AgentOrange::Version

parse
major
minor
patch_level
build_number
to_s

Maintainer

Kevin Elliott - kevinelliott.net - github.com/kevinelliott
WeLike - www.welikeinc.com - github.com/welike

Contributors

A warm thank you to all contributors to the project, who have put effort and time into making this gem more useful.

David Rice (@davidjrice) - RSpec tests and bug fixes.
Joshua Siler (@eatenbyagrue) - Bot detection, initial test, and bug fixes.
Alexander Rozumiy (@brain-geek) - Rspec testing for 1.9, updated travis-ci config, updated useragents to test against.
Joe Lencioni (@lencioni) - Improved bot detection.
Todd Huss (@thuss) of Two Bit Labs (@twobitlabs) - Google Mobile crawler detection as mobile and bot.
Aidan Feldman (@afeld) - Initial YARD documentation, and minor fix.

License

(The MIT License)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the ‘Software’), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED ‘AS IS’, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.