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# models/info_request.rb:
# A Freedom of Information request.
#
# Copyright (c) 2007 UK Citizens Online Democracy. All rights reserved.
# Email: francis@mysociety.org; WWW: http://www.mysociety.org/
#
# $Id: info_request.rb,v 1.10 2007-10-30 20:02:28 francis Exp $
require 'digest/sha1'
class InfoRequest < ActiveRecord::Base
validates_presence_of :title
belongs_to :user
#validates_presence_of :user_id # breaks during construction of new ones :(
belongs_to :public_body
validates_presence_of :public_body_id
has_many :outgoing_messages
has_many :incoming_messages
# Email which public body should use to respond to request. This is in
# the format PREFIXrequest-ID-HASH@DOMAIN. Here ID is the id of the
# FOI request, and HASH is a signature for that id.
def incoming_email
raise "id required to make incoming_email" if not self.id
incoming_email = MySociety::Config.get("INCOMING_EMAIL_PREFIX", "")
incoming_email += "request-" + self.id.to_s
incoming_email += "-" + Digest::SHA1.hexdigest(self.id.to_s + MySociety::Config.get("INCOMING_EMAIL_SECRET"))[0,8]
incoming_email += "@" + MySociety::Config.get("INCOMING_EMAIL_DOMAIN", "localhost")
return incoming_email
end
# Return info request corresponding to an incoming email address, or nil if
# none found. Checks the hash to ensure the email came from the public body -
# only they are sent the email address with the has in it.
def self.find_by_incoming_email(incoming_email)
incoming_email =~ /request-(\d+)-([a-z0-9]+)/
id = $1.to_i
hash = $2
expected_hash = Digest::SHA1.hexdigest(id.to_s + MySociety::Config.get("INCOMING_EMAIL_SECRET"))[0,8]
#print "expected: " + expected_hash + "\nhash: " + hash + "\n"
if hash != expected_hash
return nil
else
return self.find(id)
end
end
# A new incoming email to this request
def receive(email, raw_email)
incoming_message = IncomingMessage.new
incoming_message.raw_data = raw_email
incoming_message.info_request = self
incoming_message.save
end
end
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