fax.rb:
#   a small hack to fetch fax entries from the company LDAP addressbook
# use as:
#     ruby ldap2hylafax.rb | iconv -f UTF8 -t WINDOWS-1253 > 
/samba/common/hylafax.phb

require 'ldap'

ldap_host = 'localhost'
ldap_port = LDAP::LDAP_PORT
ldap_base_dn = 'dc=mycompany,dc=com'
ldap_filter  = 'facsimileTelephoneNumber=*'

# hylafax addressbook entries:
# entry_name|fax|to|company|location|voiceno|remarks|resolution|
ldap_attrs   = %w[cn facsimileTelephoneNumber cn o l telephoneNumber street]

begin
  ldap_conn = LDAP::Conn.new(ldap_host, ldap_port.to_i)
  STDOUT << 'PBOOK1.1'
  ldap_conn.bind {
    ldap_conn.search(ldap_base_dn, LDAP::LDAP_SCOPE_SUBTREE, 
ldap_filter) { |entry|
      ldap_attrs.each { |attr|
        v = entry.vals(attr)
        STDOUT << (v.is_a?(Array)? v[0].collect{|x| x.gsub(/\|/,'')} : 
'') << '|'
      }
      # 0 = low resolution fax, 1 = hires
      STDOUT << '0|'
    }
  }
rescue LDAP::ResultError => msg
  STDERR << msg.to_s << "\n"
rescue Exception => ex
  STDERR << ex.to_s << "\n"
end