mobile-detect.lua

A loose port of Mobile-Detect to Lua for NGINX HTTP servers.

The script will detect the device by comparing patterns against a given User-Agent string.
The following device information is available:

• mobile or not
• if mobile, whether phone or tablet
• operating system
• Mobile Grade (A, B, C)
• specific versions (e.g. WebKit)

Current master branch is using detection logic from Mobile-Detect@2.8.33

Requirements

• NGINX compiled with Lua module
  • OpenResty bundle is recommended
• CJSON
  • If using OpenResty, CJSON is preinstalled
  • If not: luarocks install lua-cjson
• Lrexlib - PCRE
  • luarocks install lrexlib-PCRE

Usage

init_by_lua_block {
    mobile_detect = require "mobile-detect"
}

content_by_lua_block {
    local user_agent = ngx.var.http_user_agent
    ngx.say(mobile_detect.mobile(user_agent))
    ngx.say(mobile_detect.is('iPhone', user_agent))
    ngx.say(mobile_detect.is('bot', user_agent))
}

Contributing

Your contribution is welcome.
If you want new devices to be supported, please contribute to Mobile-Detect.
Changes there will cascade to this project.

If you have bug-fixes, new features, etc for this project, please follow the below steps:
Note: To generate source from template, it requires Mobile-Detect as a sibling directory to mobile-detect.lua

• Clone Mobile-Detect
• Fork mobile-detect.lua
• Create branch
• Make changes
• Generate source: php generate/generate.php (requires PHP >= 5.4 in your PATH)
• Run tests (see below)
• Commit, push to your branch
• Create pull request

Testing

• Install Perl (add to PATH)
• Install Test::Nginx: cpan Test::Nginx
• Run: prove -r t

License

MIT-License (see LICENSE file)