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require 'nickserver/response'
require 'nickserver/hkp/response'
require 'nickserver/hkp/client'
require "nickserver/hkp/parse_key_info"
require "nickserver/hkp/key_info"
#
# Fetch keys via HKP
# http://tools.ietf.org/html/draft-shaw-openpgp-hkp-00
#
module Nickserver; module Hkp
class Source
def initialize(adapter)
@adapter = adapter
end
def query(nick, &block)
search(nick) do |status, response|
if status == 200
best = pick_best_key(response)
get_key_by_fingerprint(nick, best.keyid, &block)
else
yield Nickserver::Response.new(status, response)
end
end
end
def search(nick, &block)
client.get_key_infos_by_email(nick) do |status, response|
parser = ParseKeyInfo.new status, response
yield parser.status_for(nick), parser.response_for(nick)
end
end
protected
attr_reader :adapter
#
# for now, just pick the newest key.
#
# in the future, we should perhaps pick the newest key
# that is signed by the oldest key.
#
def pick_best_key(key_info_list)
key_info_list.sort {|a,b| a.creationdate <=> b.creationdate}.last
end
def get_key_by_fingerprint(nick, fingerprint)
client.get_key_by_fingerprint fingerprint do |status, response|
if status == 200
yield Response.new nick, response
else
yield Nickserver::Response.new status, "HKP Request failed"
end
end
end
def client
@client ||= Client.new(adapter)
end
end
end; end
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