A simple, fast user-agent parsing library based on BrowserScope's UA database with a good default dictionary.
Add ua_parser to your mix.exs dependencies:
def deps do
[{:ua_parser, "~> 1.4"}]
endiex> ua = UAParser.parse("Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_5_7; en-us) AppleWebKit/530.17 (KHTML, like Gecko) Version/4.0 Safari/530.17 Skyfire/2.0")
%UAParser.UA{
device: %UAParser.Device{family: nil},
family: "Skyfire",
os: %UAParser.OperatingSystem{
family: "Mac OS X",
version: %UAParser.Version{major: "10", minor: "5", patch: "7", patch_minor: nil}
},
version: %UAParser.Version{major: "2", minor: "0", patch: nil, patch_minor: nil}
}
iex> to_string(ua)
"Skyfire 2.0"
iex> to_string(ua.os)
"Mac OS X 10.5.7"
iex> to_string(ua.device)
"Other"Retrieving and parsing a user-agent string from Plug:
ua =
conn
|> Plug.Conn.get_req_header("user-agent")
|> List.first()
|> UAParser.parse()There is an example Phoenix application with a simple endpoint/route to retrieve the user agent header.
To run it, simply cd into the example directory, and run the following:
$ mix do deps.get, compile
$ npm i && brunch build
# change the configuration to match your own postgres username/password
$ mix do ecto.create, ecto.migrate
$ iex -S mix phoenix.server
# visit localhost:4000/user_agentIt can also be used as a simple plug:
mix new ua_plug
cd ua_plugAnd now set up mix.exs:
# ...
defp deps do
[
{:cowboy, "~> 1.0.0"},
{:plug, "~> 1.0"},
{:ua_parser, git: "https://github.com/doomspork/ua_parser.git",
branch: "master"},
]
end
# ...And we get our deps and compile:
$ mix do deps.get, compileAnd now we can make our plug:
defmodule UAPlug do
import Plug.Conn
def init(options), do: options
def call(conn, _opts) do
ua =
conn
|> Plug.Conn.get_req_header("user-agent")
|> List.first()
|> UAParser.parse()
send_resp(200, ua)
end
endFrom here we can pipe requests through it in other applications or use it on its own as we please.
UAParser source code is released under Apache 2.0 License.
See LICENSE for more information.
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