ruby-net-ldap/lib/net/ldap/core_ext/array.rb

42 lines
1.6 KiB
Ruby

module Net
class LDAP
module Extensions
module Array
#
# to_ber_appsequence
# An application-specific sequence usually gets assigned
# a tag that is meaningful to the particular protocol being used.
# This is different from the universal sequence, which usually
# gets a tag value of 16.
# Now here's an interesting thing: We're adding the X.690
# "application constructed" code at the top of the tag byte (0x60),
# but some clients, notably ldapsearch, send "context-specific
# constructed" (0xA0). The latter would appear to violate RFC-1777,
# but what do I know? We may need to change this.
#
def to_ber id = 0; to_ber_seq_internal( 0x30 + id ); end
def to_ber_set id = 0; to_ber_seq_internal( 0x31 + id ); end
def to_ber_sequence id = 0; to_ber_seq_internal( 0x30 + id ); end
def to_ber_appsequence id = 0; to_ber_seq_internal( 0x60 + id ); end
def to_ber_contextspecific id = 0; to_ber_seq_internal( 0xA0 + id ); end
def to_ber_oid
ary = self.dup
first = ary.shift
raise Net::BER::BerError.new( "invalid OID" ) unless [0,1,2].include?(first)
first = first * 40 + ary.shift
ary.unshift first
oid = ary.pack("w*")
[6, oid.length].pack("CC") + oid
end
private
def to_ber_seq_internal code
s = self.join
[code].pack('C') + s.length.to_ber_length_encoding + s
end
end
end
end
end # class Array