## environment.rb

require 'vpim/vcard'
require 'net/ldap'

## Controllers

class SessionController < ApplicationController
  skip_before_filter :authorize, :only => ["new", "create"]

  def new
    # If it's not a POST action, just show the form
    if request.post?
      ldap = Person.init_ldap_connection
      bound_user = ldap.bind_as(:filter => "(uid=#{params[:uid]})", :password => params[:password])
      if bound_user
        session[:auth] = true
        redirect_to projects_path
      else
        flash[:warning] = "Could not login with the credentials you supplied."
      end
    else
      session[:auth] = nil
      flash[:message] = "Please login"
    end
  end

  def destroy
    session[:auth] = nil
    redirect_to login_path
  end

end


## Model



class Person < ActiveRecord::Base
  has_and_belongs_to_many :projects, :order => "title"
  file_column :photo, :magick => {
            :crop => "1:1",
            :versions => { :thumb => "100x100" }
          }

  SINGLED_COLUMNS = %w(cn givenname sn street i postalcode st c labeleduri description)
  ARRAYED_COLUMNS = %w(telephonenumber mobile fax pager mail apple-imhandle)
  ARRAYED_COLUMNS.each { |v| serialize v.gsub('-','_') }
  # Connect to the LDAP and sync our list of people with the LDAP
  # [OPTIMIZE] This is incredibly inefficient, but it works for now.
  def self.sync!
    ldap = init_ldap_connection
    people = Array.new
    ldap.search(:filter => Net::LDAP::Filter.eq("apple-keyword", "FCIT" )) do |entry|
      people << person = find_or_initialize_by_uid(entry.uid.first)
      SINGLED_COLUMNS.each { |v| person[v.gsub('-','_')] = entry[v].first }
      ARRAYED_COLUMNS.each { |v| person[v.gsub('-','_')] = entry[v] }
      begin
        unless entry.jpegphoto.nil?
          # the file_column plugin makes it easy to handle thumbnails but it wont
          # take StringIO, so dump to a file and THEN read it into file_column
          File.open(File.join(RAILS_ROOT, "tmp", "#{person.to_param}.jpg"), "w+") do |file|
            file.write(entry.jpegphoto.first); person.photo = file; File.unlink(file.path)
          end
        end
      rescue NoMethodError
        # the jpegPhoto field isn't created by default so handle it's non-existance
      end
      person.save
    end
    # Remove stale db entries that aren't in the LDAP any more.
    find(:all).each do |person|
      person.destroy unless people.include? person
    end
    # Return something.
    people.size
  end

  def self.init_ldap_connection
    Net::LDAP.new :host => "gila.fcit.usf.edu",
                  :base => "cn=users,dc=gila,dc=fcit,dc=usf,dc=edu"
  end
end