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require 'nickserver/hkp/source'
require 'nickserver/couch_db/source'
module Nickserver
class RequestHandler
def initialize(responder, adapter)
@responder = responder
@adapter = adapter
end
def respond_to(params, headers)
uid = get_uid_from_params(params)
if uid.nil?
send_not_found
elsif uid !~ EmailAddress
send_error("Not a valid address")
else
send_key(uid, headers)
end
rescue RuntimeError => exc
puts "Error: #{exc}"
puts exc.backtrace
send_error(exc.to_s)
end
protected
def get_uid_from_params(params)
if params && params["address"] && params["address"].any?
return params["address"].first
else
return nil
end
end
def send_key(uid, headers)
if local_address?(uid, headers)
source = Nickserver::CouchDB::Source.new(adapter)
else
source = Nickserver::Hkp::Source.new(adapter)
end
source.query(uid) do |response|
send_response response.status, response.content
end
end
#
# Return true if the user address is for a user of this service provider.
# e.g. if the provider is example.org, then alice@example.org returns true.
#
# If 'domain' is not configured, we rely on the Host header of the HTTP request.
#
def local_address?(uid, headers)
uid_domain = uid.sub(/^.*@(.*)$/, "\\1")
if Config.domain
return uid_domain == Config.domain
else
# no domain configured, use Host header
host_header = headers['Host']
if host_header.nil?
send_error("HTTP request must include a Host header.")
else
host = host_header.split(':')[1].strip.sub(/^nicknym\./, '')
return uid_domain == host
end
end
end
def send_error(msg = "not supported")
send_response 500, "500 #{msg}\n"
end
def send_not_found(msg = "Not Found")
send_response 404, "404 #{msg}\n"
end
def send_response(status = 200, content = '')
responder.respond status, content
end
attr_reader :responder, :adapter
end
end
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