Cleanup of Dataset and Entry.
This commit is contained in:
Austin Ziegler
parent
20f494a875
commit
06ea324055
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@ -1041,7 +1041,7 @@ class Net::LDAP
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:attributes => [ :namingContexts, :supportedLdapVersion,
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:altServer, :supportedControl, :supportedExtension,
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:supportedFeatures, :supportedSASLMechanisms])
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(rs and rs.first) or Entry.new
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(rs and rs.first) or Net::LDAP::Entry.new
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end
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# Return the root Subschema record from the LDAP server as a
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@ -1072,16 +1072,16 @@ class Net::LDAP
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rs = search(:ignore_server_caps => true, :base => "",
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:scope => SearchScope_BaseObject,
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:attributes => [:subschemaSubentry])
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return Entry.new unless (rs and rs.first)
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return Net::LDAP::Entry.new unless (rs and rs.first)
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subschema_name = rs.first.subschemasubentry
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return Entry.new unless (subschema_name and subschema_name.first)
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return Net::LDAP::Entry.new unless (subschema_name and subschema_name.first)
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rs = search(:ignore_server_caps => true, :base => subschema_name.first,
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:scope => SearchScope_BaseObject,
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:filter => "objectclass=subschema",
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:attributes => [:objectclasses, :attributetypes])
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(rs and rs.first) or Entry.new
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(rs and rs.first) or Net::LDAP::Entry.new
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end
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#--
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@ -20,80 +20,155 @@
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#
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#---------------------------------------------------------------------------
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module Net
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class LDAP
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class Dataset < Hash
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attr_reader :comments
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##
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# An LDAP Dataset. Used primarily as an intermediate format for converting
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# to and from LDIF strings and Net::LDAP::Entry objects.
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class Net::LDAP::Dataset < Hash
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##
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# Dataset object comments.
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attr_reader :comments
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class IOFilter
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def initialize(io)
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@io = io
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end
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def gets
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s = @io.gets
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s.chomp if s
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end
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class << self
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class ChompedIO #:nodoc:
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def initialize(io)
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@io = io
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end
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def self.read_ldif io
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ds = Dataset.new
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io = IOFilter.new(io)
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line = io.gets
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dn = nil
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while line
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new_line = io.gets
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if new_line =~ /^[\s]+/
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line << " " << $'
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else
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nextline = new_line
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if line =~ /^\#/
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ds.comments << line
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elsif line =~ /^dn:[\s]*/i
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dn = $'
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ds[dn] = Hash.new {|k,v| k[v] = []}
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elsif line.length == 0
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dn = nil
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elsif line =~ /^([^:]+):([\:]?)[\s]*/
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# $1 is the attribute name
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# $2 is a colon iff the attr-value is base-64 encoded
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# $' is the attr-value
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# Avoid the Base64 class because not all Ruby versions have it.
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attrvalue = ($2 == ":") ? $'.unpack('m').shift : $'
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ds[dn][$1.downcase.intern] << attrvalue
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end
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line = nextline
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end
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end
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ds
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def gets
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s = @io.gets
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s.chomp if s
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end
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end
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##
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# Reads an object that returns data line-wise (using #gets) and parses
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# LDIF data into a Dataset object.
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def read_ldif(io) #:yields: entry-type, value Used mostly for debugging.
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ds = Net::LDAP::Dataset.new
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io = ChompedIO.new(io)
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def initialize
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@comments = []
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end
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line = io.gets
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dn = nil
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while line
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new_line = io.gets
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def to_ldif
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ary = []
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ary += (@comments || [])
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keys.sort.each do |dn|
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ary << "dn: #{dn}"
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if new_line =~ /^[\s]+/
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line << " " << $'
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else
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nextline = new_line
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self[dn].keys.map {|sym| sym.to_s}.sort.each do |attr|
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self[dn][attr.intern].each {|val| ary << "#{attr}: #{val}" }
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if line =~ /^#/
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ds.comments << line
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yield :comment, line if block_given?
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elsif line =~ /^dn:[\s]*/i
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dn = $'
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ds[dn] = Hash.new { |k,v| k[v] = [] }
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yield :dn, dn if block_given?
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elsif line.empty?
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dn = nil
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yield :end, nil if block_given?
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elsif line =~ /^([^:]+):([\:]?)[\s]*/
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# $1 is the attribute name
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# $2 is a colon iff the attr-value is base-64 encoded
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# $' is the attr-value
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# Avoid the Base64 class because not all Ruby versions have it.
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attrvalue = ($2 == ":") ? $'.unpack('m').shift : $'
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ds[dn][$1.downcase.to_sym] << attrvalue
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yield :attr, [$1.downcase.to_sym, attrvalue] if block_given?
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end
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ary << ""
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line = nextline
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end
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block_given? and ary.each {|line| yield line}
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ary
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end
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ds
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end
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##
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# Creates a Dataset object from an Entry object. Used mostly to assist
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# with the conversion of
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def from_entry(entry)
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dataset = Net::LDAP::Dataset.new
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hash = { }
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entry.each_attribute do |attribute, value|
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next if attribute == :dn
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hash[attribute] = value
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end
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dataset[entry.dn] = hash
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dataset
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end
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end
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def initialize(*args, &block) #:nodoc:
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super
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@comments = []
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end
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##
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# Outputs an LDAP Dataset as an array of strings representing LDIF
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# entries.
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def to_ldif
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ary = []
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ary += @comments unless @comments.empty?
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keys.sort.each do |dn|
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ary << "dn: #{dn}"
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attributes = self[dn].keys.map { |attr| attr.to_s }.sort
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attributes.each do |attr|
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self[dn][attr.to_sym].each do |value|
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if attr == "userpassword" or value_is_binary?(value)
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value = [value].pack("m").chomp.gsub(/\n/m, "\n ")
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ary << "#{attr}:: #{value}"
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else
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ary << "#{attr}: #{value}"
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end
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end
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end
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ary << ""
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end
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block_given? and ary.each { |line| yield line}
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ary
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end
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##
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# Outputs an LDAP Dataset as an LDIF string.
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def to_ldif_string
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to_ldif.join("\n")
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end
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##
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# Convert the parsed LDIF objects to Net::LDAP::Entry objects.
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def to_entries
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ary = []
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keys.each do |dn|
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entry = Net::LDAP::Entry.new(dn)
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self[dn].each do |attr, value|
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entry[attr] = value
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end
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ary << entry
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end
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ary
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end
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# This is an internal convenience method to determine if a value requires
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# base64-encoding before conversion to LDIF output. The standard approach
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# in most LDAP tools is to check whether the value is a password, or if
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# the first or last bytes are non-printable. Microsoft Active Directory,
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# on the other hand, sometimes sends values that are binary in the middle.
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#
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# In the worst cases, this could be a nasty performance killer, which is
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# why we handle the simplest cases first. Ideally, we would also test the
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# first/last byte, but it's a bit harder to do this in a way that's
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# compatible with both 1.8.6 and 1.8.7.
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def value_is_binary?(value)
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value = value.to_s
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return true if value[0] == ?: or value[0] == ?<
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value.each_byte { |byte| return true if (byte < 32) || (byte > 126) }
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false
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end
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private :value_is_binary?
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end
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require 'net/ldap/entry' unless defined? Net::LDAP::Entry
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@ -21,246 +21,188 @@
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# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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#
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#---------------------------------------------------------------------------
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##
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# Objects of this class represent individual entries in an LDAP directory.
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# User code generally does not instantiate this class. Net::LDAP#search
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# provides objects of this class to user code, either as block parameters or
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# as return values.
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#
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# In LDAP-land, an "entry" is a collection of attributes that are uniquely
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# and globally identified by a DN ("Distinguished Name"). Attributes are
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# identified by short, descriptive words or phrases. Although a directory is
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# free to implement any attribute name, most of them follow rigorous
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# standards so that the range of commonly-encountered attribute names is not
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# large.
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#
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# An attribute name is case-insensitive. Most directories also restrict the
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# range of characters allowed in attribute names. To simplify handling
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# attribute names, Net::LDAP::Entry internally converts them to a standard
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# format. Therefore, the methods which take attribute names can take Strings
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# or Symbols, and work correctly regardless of case or capitalization.
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#
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# An attribute consists of zero or more data items called <i>values.</i> An
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# entry is the combination of a unique DN, a set of attribute names, and a
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# (possibly-empty) array of values for each attribute.
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#
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# Class Net::LDAP::Entry provides convenience methods for dealing with LDAP
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# entries. In addition to the methods documented below, you may access
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# individual attributes of an entry simply by giving the attribute name as
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# the name of a method call. For example:
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#
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# ldap.search( ... ) do |entry|
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# puts "Common name: #{entry.cn}"
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# puts "Email addresses:"
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# entry.mail.each {|ma| puts ma}
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# end
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#
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# If you use this technique to access an attribute that is not present in a
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# particular Entry object, a NoMethodError exception will be raised.
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#
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#--
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# Ugly problem to fix someday: We key off the internal hash with a canonical
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# form of the attribute name: convert to a string, downcase, then take the
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# symbol. Unfortunately we do this in at least three places. Should do it in
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# ONE place.
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class Net::LDAP::Entry
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##
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# This constructor is not generally called by user code.
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def initialize(dn = nil) #:nodoc:
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@myhash = {}
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@myhash[:dn] = [dn]
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end
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module Net
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class LDAP
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##
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# Use the LDIF format for Marshal serialization.
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def _dump(depth) #:nodoc:
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to_ldif
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end
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##
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# Use the LDIF format for Marshal serialization.
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def self._load(entry) #:nodoc:
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from_single_ldif_string(entry)
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end
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# Objects of this class represent individual entries in an LDAP directory.
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# User code generally does not instantiate this class. Net::LDAP#search
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# provides objects of this class to user code, either as block parameters or
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# as return values.
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class << self
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##
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# Converts a single LDIF entry string into an Entry object. Useful for
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# Marshal serialization. If a string with multiple LDIF entries is
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# provided, an exception will be raised.
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def from_single_ldif_string(ldif)
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ds = Net::LDAP::Dataset.read_ldif(::StringIO.new(ldif))
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return nil if ds.empty?
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raise Net::LDAP::LdapError, "Too many LDIF entries" unless ds.size == 1
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entry = ds.to_entries.first
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return nil if entry.dn.nil?
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entry
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end
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##
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# Canonicalizes an LDAP attribute name as a \Symbol. The name is
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# lowercased and, if present, a trailing equals sign is removed.
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def attribute_name(name)
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name = name.to_s.downcase
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name = name[0..-2] if name[-1] == ?=
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name.to_sym
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end
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end
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##
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# Sets or replaces the array of values for the provided attribute. The
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# attribute name is canonicalized prior to assignment.
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#
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# In LDAP-land, an "entry" is a collection of attributes that are uniquely
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# and globally identified by a DN ("Distinguished Name"). Attributes are
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# identified by short, descriptive words or phrases. Although a directory is
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# free to implement any attribute name, most of them follow rigorous
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# standards so that the range of commonly-encountered attribute names is not
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# large.
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# When an attribute is set using this, that attribute is now made
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# accessible through methods as well.
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#
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# An attribute name is case-insensitive. Most directories also restrict the
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# range of characters allowed in attribute names. To simplify handling
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# attribute names, Net::LDAP::Entry internally converts them to a standard
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# format. Therefore, the methods which take attribute names can take Strings
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# or Symbols, and work correctly regardless of case or capitalization.
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# entry = Net::LDAP::Entry.new("dc=com")
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# entry.foo # => NoMethodError
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# entry["foo"] = 12345 # => [12345]
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# entry.foo # => [12345]
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def []=(name, value)
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@myhash[self.class.attribute_name(name)] = Kernel::Array(value)
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end
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##
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# Reads the array of values for the provided attribute. The attribute name
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# is canonicalized prior to reading. Returns an empty array if the
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# attribute does not exist.
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def [](name)
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name = self.class.attribute_name(name)
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@myhash[name] || []
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end
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##
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# Returns the first distinguished name (dn) of the Entry as a \String.
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def dn
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self[:dn].first.to_s
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end
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##
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# Returns an array of the attribute names present in the Entry.
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def attribute_names
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@myhash.keys
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end
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##
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# Accesses each of the attributes present in the Entry.
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#
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# An attribute consists of zero or more data items called <i>values.</i> An
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# entry is the combination of a unique DN, a set of attribute names, and a
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# (possibly-empty) array of values for each attribute.
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#
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# Class Net::LDAP::Entry provides convenience methods for dealing with LDAP
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# entries. In addition to the methods documented below, you may access
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# individual attributes of an entry simply by giving the attribute name as
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# the name of a method call. For example:
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#
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# ldap.search( ... ) do |entry|
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# puts "Common name: #{entry.cn}"
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# puts "Email addresses:"
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# entry.mail.each {|ma| puts ma}
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# end
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#
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# If you use this technique to access an attribute that is not present in a
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# particular Entry object, a NoMethodError exception will be raised.
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#
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#--
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# Ugly problem to fix someday: We key off the internal hash with a canonical
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# form of the attribute name: convert to a string, downcase, then take the
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# symbol. Unfortunately we do this in at least three places. Should do it in
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# ONE place.
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#
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class Entry
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# This constructor is not generally called by user code.
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#
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def initialize dn = nil # :nodoc:
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@myhash = {}
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@myhash[:dn] = [dn]
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end
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def _dump depth
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to_ldif
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end
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class << self
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def _load entry
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from_single_ldif_string entry
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end
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end
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#--
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# Discovered bug, 26Aug06: I noticed that we're not converting the
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# incoming value to an array if it isn't already one.
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def []=(name, value) # :nodoc:
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sym = attribute_name(name)
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value = [value] unless value.is_a?(Array)
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@myhash[sym] = value
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end
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#--
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# We have to deal with this one as we do with []= because this one and not
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# the other one gets called in formulations like entry["CN"] << cn.
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#
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def [](name) # :nodoc:
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name = attribute_name(name) unless name.is_a?(Symbol)
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@myhash[name] || []
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end
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# Returns the dn of the Entry as a String.
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def dn
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self[:dn][0].to_s
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end
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# Returns an array of the attribute names present in the Entry.
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def attribute_names
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@myhash.keys
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end
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# Accesses each of the attributes present in the Entry.
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# Calls a user-supplied block with each attribute in turn,
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# passing two arguments to the block: a Symbol giving
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# the name of the attribute, and a (possibly empty)
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# Array of data values.
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#
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def each
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if block_given?
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attribute_names.each {|a|
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attr_name,values = a,self[a]
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yield attr_name, values
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}
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end
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end
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alias_method :each_attribute, :each
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# Converts the Entry to a String, representing the
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# Entry's attributes in LDIF format.
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#--
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def to_ldif
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ary = []
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ary << "dn: #{dn}\n"
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v2 = "" # temp value, save on GC
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each_attribute do |k,v|
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unless k == :dn
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v.each {|v1|
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v2 = if (k == :userpassword) || is_attribute_value_binary?(v1)
|
||||
": #{Base64.encode64(v1).chomp.gsub(/\n/m,"\n ")}"
|
||||
else
|
||||
" #{v1}"
|
||||
end
|
||||
ary << "#{k}:#{v2}\n"
|
||||
}
|
||||
end
|
||||
end
|
||||
ary << "\n"
|
||||
ary.join
|
||||
end
|
||||
|
||||
#--
|
||||
# TODO, doesn't support broken lines.
|
||||
# It generates a SINGLE Entry object from an incoming LDIF stream which is
|
||||
# of course useless for big LDIF streams that encode many objects.
|
||||
#
|
||||
# DO NOT DOCUMENT THIS METHOD UNTIL THESE RESTRICTIONS ARE LIFTED.
|
||||
#
|
||||
# As it is, it's useful for unmarshalling objects that we create, but not
|
||||
# for reading arbitrary LDIF files. Eventually, we should have a class
|
||||
# method that parses large LDIF streams into individual LDIF blocks
|
||||
# (delimited by blank lines) and passes them here.
|
||||
#
|
||||
class << self
|
||||
def from_single_ldif_string ldif
|
||||
entry = Entry.new
|
||||
entry[:dn] = []
|
||||
ldif.split(/\r?\n/m).each {|line|
|
||||
break if line.length == 0
|
||||
if line =~ /\A([\w]+):(:?)[\s]*/
|
||||
entry[$1] <<= if $2 == ':'
|
||||
Base64.decode64($')
|
||||
else
|
||||
$'
|
||||
end
|
||||
end
|
||||
}
|
||||
entry.dn ? entry : nil
|
||||
end
|
||||
end
|
||||
|
||||
#--
|
||||
# Part of the support for getter and setter style access to attributes.
|
||||
#
|
||||
def respond_to?(sym)
|
||||
name = attribute_name(sym)
|
||||
return true if valid_attribute?(name)
|
||||
return super
|
||||
end
|
||||
|
||||
#--
|
||||
# Supports getter and setter style access for all the attributes that this
|
||||
# entry holds.
|
||||
#
|
||||
def method_missing sym, *args, &block # :nodoc:
|
||||
name = attribute_name(sym)
|
||||
|
||||
if valid_attribute? name
|
||||
if setter?(sym) && args.size == 1
|
||||
value = args.first
|
||||
value = [value] unless value.instance_of?(Array)
|
||||
self[name]= value
|
||||
|
||||
return value
|
||||
elsif args.empty?
|
||||
return self[name]
|
||||
end
|
||||
end
|
||||
|
||||
super
|
||||
end
|
||||
|
||||
def write
|
||||
end
|
||||
|
||||
private
|
||||
|
||||
#--
|
||||
# Internal convenience method. It seems like the standard
|
||||
# approach in most LDAP tools to base64 encode an attribute
|
||||
# value if its first or last byte is nonprintable, or if
|
||||
# it's a password. But that turns out to be not nearly good
|
||||
# enough. There are plenty of A/D attributes that are binary
|
||||
# in the middle. This is probably a nasty performance killer.
|
||||
def is_attribute_value_binary? value
|
||||
v = value.to_s
|
||||
v.each_byte {|byt|
|
||||
return true if (byt < 32) || (byt > 126)
|
||||
# Calls a user-supplied block with each attribute in turn, passing two
|
||||
# arguments to the block: a Symbol giving the name of the attribute, and a
|
||||
# (possibly empty) \Array of data values.
|
||||
def each # :yields: attribute-name, data-values-array
|
||||
if block_given?
|
||||
attribute_names.each {|a|
|
||||
attr_name,values = a,self[a]
|
||||
yield attr_name, values
|
||||
}
|
||||
if v[0..0] == ':' or v[0..0] == '<'
|
||||
return true
|
||||
end
|
||||
end
|
||||
alias_method :each_attribute, :each
|
||||
|
||||
##
|
||||
# Converts the Entry to an LDIF-formatted String
|
||||
def to_ldif
|
||||
Net::LDAP::Dataset.from_entry(self).to_ldif_string
|
||||
end
|
||||
|
||||
def respond_to?(sym) #:nodoc:
|
||||
return true if valid_attribute?(self.class.attribute_name(sym))
|
||||
return super
|
||||
end
|
||||
|
||||
def method_missing(sym, *args, &block) #:nodoc:
|
||||
name = self.class.attribute_name(sym)
|
||||
|
||||
if valid_attribute?(name )
|
||||
if setter?(sym) && args.size == 1
|
||||
value = args.first
|
||||
value = Array(value)
|
||||
self[name]= value
|
||||
return value
|
||||
elsif args.empty?
|
||||
return self[name]
|
||||
end
|
||||
false
|
||||
end
|
||||
|
||||
# Returns the symbol that can be used to access the attribute that
|
||||
# sym_or_str designates.
|
||||
#
|
||||
def attribute_name(sym_or_str)
|
||||
str = sym_or_str.to_s.downcase
|
||||
super
|
||||
end
|
||||
|
||||
# Does str match 'something='? Still only returns :something
|
||||
return str[0...-1].to_sym if str.size>1 && str[-1] == ?=
|
||||
return str.to_sym
|
||||
end
|
||||
# Given a valid attribute symbol, returns true.
|
||||
def valid_attribute?(attr_name)
|
||||
attribute_names.include?(attr_name)
|
||||
end
|
||||
private :valid_attribute?
|
||||
|
||||
# Given a valid attribute symbol, returns true.
|
||||
#
|
||||
def valid_attribute?(attr_name)
|
||||
attribute_names.include?(attr_name)
|
||||
end
|
||||
# Returns true if the symbol ends with an equal sign.
|
||||
def setter?(sym)
|
||||
sym.to_s[-1] == ?=
|
||||
end
|
||||
private :setter?
|
||||
end # class Entry
|
||||
|
||||
def setter?(sym)
|
||||
sym.to_s[-1] == ?=
|
||||
end
|
||||
end # class Entry
|
||||
|
||||
|
||||
end # class LDAP
|
||||
end # module Net
|
||||
require 'net/ldap/dataset' unless defined? Net::LDAP::Dataset
|
||||
|
|
|
|||
|
|
@ -7,53 +7,60 @@ require 'digest/sha1'
|
|||
require 'base64'
|
||||
|
||||
class TestLdif < Test::Unit::TestCase
|
||||
|
||||
TestLdifFilename = "#{File.dirname(__FILE__)}/testdata.ldif"
|
||||
|
||||
def test_empty_ldif
|
||||
ds = Net::LDAP::Dataset.read_ldif( StringIO.new )
|
||||
assert_equal( true, ds.empty? )
|
||||
ds = Net::LDAP::Dataset.read_ldif(StringIO.new)
|
||||
assert_equal(true, ds.empty?)
|
||||
end
|
||||
|
||||
def test_ldif_with_comments
|
||||
str = ["# Hello from LDIF-land", "# This is an unterminated comment"]
|
||||
io = StringIO.new( str[0] + "\r\n" + str[1] )
|
||||
ds = Net::LDAP::Dataset::read_ldif( io )
|
||||
assert_equal( str, ds.comments )
|
||||
io = StringIO.new(str[0] + "\r\n" + str[1])
|
||||
ds = Net::LDAP::Dataset::read_ldif(io)
|
||||
assert_equal(str, ds.comments)
|
||||
end
|
||||
|
||||
def test_ldif_with_password
|
||||
psw = "goldbricks"
|
||||
hashed_psw = "{SHA}" + Base64::encode64(Digest::SHA1.digest(psw)).chomp
|
||||
|
||||
ldif_encoded = Base64::encode64( hashed_psw ).chomp
|
||||
ds = Net::LDAP::Dataset::read_ldif( StringIO.new( "dn: Goldbrick\r\nuserPassword:: #{ldif_encoded}\r\n\r\n" ))
|
||||
ldif_encoded = Base64::encode64(hashed_psw).chomp
|
||||
ds = Net::LDAP::Dataset::read_ldif(StringIO.new("dn: Goldbrick\r\nuserPassword:: #{ldif_encoded}\r\n\r\n"))
|
||||
recovered_psw = ds["Goldbrick"][:userpassword].shift
|
||||
assert_equal( hashed_psw, recovered_psw )
|
||||
assert_equal(hashed_psw, recovered_psw)
|
||||
end
|
||||
|
||||
def test_ldif_with_continuation_lines
|
||||
ds = Net::LDAP::Dataset::read_ldif( StringIO.new( "dn: abcdefg\r\n hijklmn\r\n\r\n" ))
|
||||
assert_equal( true, ds.has_key?( "abcdefg hijklmn" ))
|
||||
ds = Net::LDAP::Dataset::read_ldif(StringIO.new("dn: abcdefg\r\n hijklmn\r\n\r\n"))
|
||||
assert_equal(true, ds.has_key?("abcdefg hijklmn"))
|
||||
end
|
||||
|
||||
# TODO, INADEQUATE. We need some more tests
|
||||
# to verify the content.
|
||||
def test_ldif
|
||||
File.open( TestLdifFilename, "r" ) {|f|
|
||||
ds = Net::LDAP::Dataset::read_ldif( f )
|
||||
assert_equal( 13, ds.length )
|
||||
File.open(TestLdifFilename, "r") {|f|
|
||||
ds = Net::LDAP::Dataset::read_ldif(f)
|
||||
assert_equal(13, ds.length)
|
||||
}
|
||||
end
|
||||
|
||||
# TODO, need some tests.
|
||||
# Must test folded lines and base64-encoded lines as well as normal ones.
|
||||
#def test_to_ldif
|
||||
# File.open( TestLdifFilename, "r" ) {|f|
|
||||
# ds = Net::LDAP::Dataset::read_ldif( f )
|
||||
# ds.to_ldif
|
||||
# assert_equal( true, false ) # REMOVE WHEN WE HAVE SOME TESTS HERE.
|
||||
# }
|
||||
#end
|
||||
def test_to_ldif
|
||||
data = File.open(TestLdifFilename, "rb") { |f| f.read }
|
||||
io = StringIO.new(data)
|
||||
|
||||
entries = data.grep(/^dn:\s*/) { $'.chomp }
|
||||
dn_entries = entries.dup
|
||||
|
||||
ds = Net::LDAP::Dataset::read_ldif(io) { |type, value|
|
||||
case type
|
||||
when :dn
|
||||
assert_equal(dn_entries.first, value)
|
||||
dn_entries.shift
|
||||
end
|
||||
}
|
||||
assert_equal(entries.size, ds.size)
|
||||
assert_equal(entries.sort, ds.to_ldif.grep(/^dn:\s*/) { $'.chomp })
|
||||
end
|
||||
end
|
||||
|
|
|
|||
Loading…
Reference in a new issue