class Sinatra::Request

rack.rubyforge.org/doc/classes/Rack/Request.html<br>The request object. See Rack::Request for more info:

def accept

Returns an array of acceptable media types for the response 
def accept
  @env['sinatra.accept'] ||= begin
    entries = @env['HTTP_ACCEPT'].to_s.split(',')
    entries.map { |e| accept_entry(e) }.sort_by { |e| e.last }.map { |e| e.first }
  end
end

def accept_entry(entry) 

def accept_entry(entry)
  type, *options = entry.gsub(/\s/, '').split(';')
  quality = 0 # we sort smalles first
  options.delete_if { |e| quality = 1 - e[2..-1].to_f if e =~ /^q=/ }
  [type, [quality, type.count('*'), 1 - options.size]]
end

def forwarded? 

def forwarded?
  @env.include? "HTTP_X_FORWARDED_HOST"
end

def path_info=(value) 

def path_info=(value)
  @route = nil
  super
end

def preferred_type(*types) 

def preferred_type(*types)
  return accept.first if types.empty?
  types.flatten!
  accept.detect do |pattern|
    type = types.detect { |t| File.fnmatch(pattern, t) }
    return type if type
  end
end

def route 

def route
  @route ||= Rack::Utils.unescape(path_info)
end

def secure?

using SSL to communicate with the client.
Whether or not the web server (or a reverse proxy in front of it) is 
def secure?
  @env['HTTPS'] == 'on' or
  @env['HTTP_X_FORWARDED_PROTO'] == 'https' or
  @env['rack.url_scheme'] == 'https'
end