device_detector

Shard for detect device by user agent string shards device-detection user-agent-parser user-agent-analysis
0.3.12 Latest release released

Device Detector

Build Status

The library for parsing User Agent and browser, operating system, device used (desktop, tablet, mobile, tv, cars, console, etc.), vendor and model detection.

  • Support latest Crystal version and update script for private use or immediately updates.
  • Currently it is production version and works fine more that 2 years.
  • The Library uses regexes from matomo-org/device-detector.

Installation

Add this to your application's shard.yml:

dependencies:
  device_detector:
    github: creadone/device_detector

Then run shards install

Usage

require "device_detector"

user_agent = "Mozilla/5.0 (Windows NT 6.4; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/36.0.1985.143 Safari/537.36 Edge/12.0"
response = DeviceDetector::Detector.new(user_agent).call  # All parsers
response = DeviceDetector::Detector.new(user_agent).lite  # Only for bot and mobile

# Check if browser detected
response.browser? #=> true

# browser name
response.browser_name #=> Microsoft Edge

# browser version
response.browser_version #=> 12.0

# get raw response with
pp response.raw

[{
    "bot" => {
      "name" => ""
    }
  },
  {
    "browser" => {
      "name" => "", "version" => ""
    }
  },

  {...},

  {
    "vendorfragment" => {
      "vendor" => ""
    }
  }
]

Available methods:

bot?
bot_name
browser_engine?
browser_engine_name
browser?
browser_name
browser_version
camera?
camera_vendor
camera_model
car_browser?
car_browser_vendor
car_browser_model
console?
console_vendor
console_model
feed_reader?
feed_reader_name
feed_reader_version
library?
library_name
library_version
mediaplayer?
mediaplayer_name
mediaplayer_version
mobile_app?
mobile_app_name
mobile_app_version
mobile_device?
mobile_device_vendor
mobile_device_type
mobile_device_model
os?
os_name
os_version
pim?
pim_name
pim_version
portable_media_player?
portable_media_player_vendor
portable_media_player_model
tv?
tv_vendor
tv_model
vendorfragment?
vendorfragment_vendor

Benchmarks

Recent benchmarking of parsing 1000 user-agent strings on a MacBook Air with Intel Core i5 dual core (0.8 Ghz per core):

Crystal 0.30.1 (2019-08-13) LLVM: 8.0.1 Default target: x86_64-apple-macosx

bench/raw_response.cr --release
            user     system      total        real
full:   5.880000   0.060000   5.940000 (  5.940340)
lite:   3.880000   0.040000   3.920000 (  3.953958)

It's mean that device_detector can work with 1000 / 5.9 ~ 169 QPS.

Testing

crystal spec

Update regexes

crystal scripts/update_regexes.cr

ToDo

  • Support overloading of base rules
  • CLI & HTTP version
  • More lighter and faster the lite version
  • Reload regexes on the fly (may be)

Contributing

  1. Fork it ( https://github.com/creadone/device_detector/fork )
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create a new Pull Request

Contributors

  • @creadone Sergey Fedorov - creator, maintainer
  • @delef Ivan Palamarchuk - new api, code optimization
  • @zaycker Yuriy Zaitsev - fix check order
device_detector:
  github: creadone/device_detector
  version: ~> 0.3.12
License MIT
Crystal 0.35.1

Authors

Dependencies 1

Development Dependencies 0

Dependents 0

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