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require 'eventmachine'
require 'evma_httpserver'
#
# This is the main HTTP server that clients connect to in order to fetch keys
#
module Nickserver
class Server < EM::Connection
include EM::HttpServer
def post_init
super
no_environment_strings
end
def process_http_request
# the http request details are available via the following instance variables:
# @http_protocol
# @http_request_method
# @http_cookie
# @http_if_none_match
# @http_content_type
# @http_path_info
# @http_request_uri
# @http_query_string
# @http_post_content
# @http_headers
if @http_request_method == "GET"
if @http_path_info =~ /^\/key\//
send_key
else
send_error("malformed path: #{@http_path_info}")
end
else
send_error("only GET is supported")
end
end
private
def send_error(msg = "not supported")
send_response(:status => 500, :content => msg)
end
def send_key
uid = CGI.unescape @http_path_info.sub(/^\/key\/(.*)/, '\1')
get_key_from_uid(uid) do |key|
send_response(:content => key)
end
end
def send_response(opts = {})
options = {:status => 200, :content_type => 'text/plain', :content => ''}.merge(opts)
response = EM::DelegatedHttpResponse.new(self)
response.status = options[:status]
response.content_type options[:content_type]
response.content = options[:content]
response.send_response
end
def get_key_from_uid(uid)
Nickserver::HKP::FetchKey.new.get(uid).callback {|key|
yield key
}.errback {|status|
send_response(:status => status, :content => 'could not fetch key')
}
end
end
end
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