Accessing filesystem with REST api

server.rb

require 'sinatra/base'

module Sensive
  class DocServer < Sinatra::Base

    def self.run!(params={})
      super
    end

    basedir = "./data"
    dirs = Dir.glob("#{basedir}/*/*")

    #GET /data/passwords/*/value
    dirs.each do |path|
      url = path[1..-1]
      puts "Define: GET #{url}"

      get "#{url}" do
        file = File.join(path, "value")        

        File.open(file) do |f|
          f.read
        end
      end
    end  

    #POST /data/passwords/*/value
    dirs.each do |path|
      url = path[1..-1]
      parent_dir = url.split("/")[0..-2].join("/")
      puts "Define: POST #{parent_dir}/:name"

      post "#{parent_dir}/:name" do
        value = params["value"]
        dir = File.join("./", parent_dir, params[:name])

        if Dir.exists?(dir) 
          notify "Entry already exists: #{dir}" 
        else
          Dir.mkdir(dir)
          File.open(File.join(dir, "value"), "w") do |f|
            f.write("my secret password")
          end
          notify "New entry added: #{dir}" 
        end
      end
    end

    #PUT /data/passwords/*/value
    dirs.each do |path|
      url = path[1..-1]
      puts "Define: PUT #{url}"

      put "#{url}" do
        value = params["value"]
        file = File.join(path, "value")

        if File.exists?(file)
          File.open(file, "w") do |f|
            f.write(value)
            notify "Entry updated: #{file}" 
          end 
        end
      end
    end 

    private

    def notify(response)
      response + "\n"
    end
  end
end

Sensive::DocServer.run!