Module: Sinatra::Authorize

Defined in:
lib/sinatra/authorize.rb,
lib/sinatra-authorize/version.rb

Defined Under Namespace

Classes: Condition

Constant Summary collapse

VERSION = 
"0.0.2"

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.registered(app) ⇒ Object 



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# File 'lib/sinatra/authorize.rb', line 48

def registered(app)
  app.class_eval do
    alias :old_process_route :process_route

    def process_route(pattern, keys, conditions, &block)
      authorize_conditions = conditions.select do |cond|
        cond.is_a?(Authorize::Condition)
      end

      regular_conditions = conditions - authorize_conditions

      old_process_route(pattern, keys, regular_conditions) do
        throw :halt, 403 if authorize_route(authorize_conditions) == false
        yield
      end
    end

    def authorize_route(conditions)
      unless settings.respond_to? :authorize_block
        raise "No authorize block is defined."
      end

      [settings.authorize_default, *conditions].reverse.each do |cond|
        value = instance_eval(&cond)
        return value if value == true || value == false
      end

      settings.authorize_default.rule == :allow
    end
  end
end

Instance Method Details

#allow(*args) ⇒ Object 



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# File 'lib/sinatra/authorize.rb', line 33

def allow(*args)
  condition &(authorize_condition(:allow, args))
end

#authorize(opts = {}, &block) ⇒ Object 



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# File 'lib/sinatra/authorize.rb', line 13

def authorize(opts = {}, &block)
  opts = {opts => []} if opts.is_a?(Symbol)

  if opts[:deny]
    args = *(opts[:deny])
    set :authorize_default, Proc.new { authorize_condition(:deny, args) }
  else
    args = *(opts[:allow] || [])
    set :authorize_default, Proc.new { authorize_condition(:allow, args) }
  end

  if block_given?
    define_method(:authorize_block, block)
    authorize_block = instance_method(:authorize_block)
    remove_method(:authorize_block)

    set :authorize_block, Proc.new { authorize_block }
  end
end

#authorize_condition(rule, args) ⇒ Object 



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# File 'lib/sinatra/authorize.rb', line 41

def authorize_condition(rule, args)
  Condition.new rule do
    settings.authorize_block.bind(self).call(rule, args) 
  end
end

#deny(*args) ⇒ Object 



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# File 'lib/sinatra/authorize.rb', line 37

def deny(*args)
  condition &(authorize_condition(:deny, args))
end