Class: Ldaptic::Filter::Pair

Inherits:
Abstract show all
Defined in:
lib/ldaptic/filter.rb

Overview

Internal class used to process a single entry from a hash.

Constant Summary collapse

INVERSE_OPERATORS = 
{
  "!=" => "==",
  "!~" => "=~",
  ">"  => "<=",
  "<"  => ">="
}

Instance Method Summary collapse

Methods inherited from Abstract

#&, #inspect, #to_ber, #to_net_ldap_filter, #to_s, #|, #~

Constructor Details

#initialize(key, value, operator) ⇒ Pair

Returns a new instance of Pair.



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# File 'lib/ldaptic/filter.rb', line 219

def initialize(key, value, operator)
  @key, @value, @operator = key.to_s.dup, value, operator.to_s
  @inverse = !!@key.sub!(/!$/, '')
  if op = INVERSE_OPERATORS[@operator]
    @inverse ^= true
    @operator = op
  end
end

Instance Method Details

#process ⇒ Object 



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# File 'lib/ldaptic/filter.rb', line 228

def process
  k = @key
  v = @value
  if @operator == "=~"
    operator = "=="
    star = true
  else
    operator = @operator
    star = false
  end
  inverse = @inverse
  operator = "=" if operator == "=="
  if v.respond_to?(:to_ary)
    q = "(|" + v.map {|e| "(#{Ldaptic.encode(k)}=#{Ldaptic.escape(e, star)})"}.join + ")"
  elsif v.kind_of?(Range)
    q = []
    if v.first != -1.0/0
      q << "(#{Ldaptic.encode(k)}>=#{Ldaptic.escape(v.first, star)})"
    end
    if v.last != 1.0/0
      if v.exclude_end?
        q << "(!(#{Ldaptic.encode(k)}>=#{Ldaptic.escape(v.last, star)}))"
      else
        q << "(#{Ldaptic.encode(k)}<=#{Ldaptic.escape(v.last, star)})"
      end
    end
    q = "(&#{q*""})"
  elsif v == true || v == :*
    q = "(#{Ldaptic.encode(k)}=*)"
  elsif !v
    q = "(#{Ldaptic.encode(k)}=*)"
    inverse ^= true
  else
    q = "(#{Ldaptic.encode(k)}#{operator}#{Ldaptic.escape(v, star)})"
  end
  inverse ? "(!#{q})" : q
end