Class: Puppet::Provider::NameService::DirectoryService

Inherits:
Puppet::Provider::NameService show all
Defined in:
lib/puppet/provider/nameservice/directoryservice.rb

Constant Summary collapse

@@ds_to_ns_attribute_map =

JJM 2007-07-25: This map is used to map NameService attributes to their

corresponding DirectoryService attribute names.
See: http://images.apple.com/server/docs.Open_Directory_v10.4.pdf

JJM: Note, this is de-coupled from the Puppet::Type, and must

be actively maintained.  There may also be collisions with different
types (Users, Groups, Mounts, Hosts, etc...)

{
  'RecordName' => :name,
  'PrimaryGroupID' => :gid,
  'NFSHomeDirectory' => :home,
  'UserShell' => :shell,
  'UniqueID' => :uid,
  'RealName' => :comment,
  'Password' => :password,
  'GeneratedUID' => :guid,
  'IPAddress'    => :ip_address,
  'ENetAddress'  => :en_address,
  'GroupMembership' => :members,
}
@@ns_to_ds_attribute_map =

JJM The same table as above, inverted.

{
  :name => 'RecordName',
  :gid => 'PrimaryGroupID',
  :home => 'NFSHomeDirectory',
  :shell => 'UserShell',
  :uid => 'UniqueID',
  :comment => 'RealName',
  :password => 'Password',
  :guid => 'GeneratedUID',
  :en_address => 'ENetAddress',
  :ip_address => 'IPAddress',
  :members => 'GroupMembership',
}
@@password_hash_dir = 
"/var/db/shadow/hash"

Class Attribute Summary collapse

Attributes inherited from Puppet::Provider

#model, #resource

Attributes included from Util::Docs

#doc, #nodoc

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Puppet::Provider::NameService

#autogen, autogen_default, autogen_defaults, #autogen_id, #delete, #ensure, #exists?, #get, #groups, #info2hash, #initialize, initvars, listbyname, option, options, resource_type=, section, validate, verify

Methods inherited from Puppet::Provider

#clear, command, #command, commands, declared_feature?, default?, defaultfor, #get, #initialize, initvars, make_command_methods, mk_resource_methods, mkmodelmethods, #name, optional_commands, specificity, supports_parameter?, #to_s

Methods included from Util::Logging

#send_log

Methods included from Util

activerecord_version, benchmark, chuser, classproxy, #execfail, #execpipe, execute, logmethods, memory, proxy, recmkdir, secure_open, symbolize, symbolizehash, symbolizehash!, synchronize_on, thinmark, #threadlock, which, withumask

Methods included from Util::POSIX

#get_posix_field, #gid, #idfield, #methodbyid, #methodbyname, #search_posix_field, #uid

Methods included from Util::Docs

#desc, #dochook, #doctable, #nodoc?, #pad, scrub

Methods included from Util::Warnings

clear_warnings, notice_once, warnonce

Methods included from Confiner

#confine, #confine_collection, #suitable?

Methods included from Util::Errors

#adderrorcontext, #devfail, #error_context, #exceptwrap, #fail

Constructor Details

This class inherits a constructor from Puppet::Provider::NameService

Class Attribute Details

.ds_path=(value) ⇒ Object (writeonly)

JJM: This allows us to pass information when calling

    Puppet::Type.type
e.g. Puppet::Type.type(:user).provide :directoryservice, :ds_path => "Users"
This is referenced in the get_ds_path class method



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# File 'lib/puppet/provider/nameservice/directoryservice.rb', line 29

def ds_path=(value)
  @ds_path = value
end

.macosx_version_major=(value) ⇒ Object (writeonly)

Sets the attribute macosx_version_major

Parameters:

  • value —

    the value to set the attribute macosx_version_major to.



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# File 'lib/puppet/provider/nameservice/directoryservice.rb', line 30

def macosx_version_major=(value)
  @macosx_version_major = value
end

Class Method Details

.generate_attribute_hash(input_hash, *type_properties) ⇒ Object 



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# File 'lib/puppet/provider/nameservice/directoryservice.rb', line 182

def self.generate_attribute_hash(input_hash, *type_properties)
  attribute_hash = {}
  input_hash.keys.each do |key|
    ds_attribute = key.sub("dsAttrTypeStandard:", "")
    next unless (@@ds_to_ns_attribute_map.keys.include?(ds_attribute) and type_properties.include? @@ds_to_ns_attribute_map[ds_attribute])
    ds_value = input_hash[key]
    case @@ds_to_ns_attribute_map[ds_attribute]
      when :members
        ds_value = ds_value # only members uses arrays so far
      when :gid, :uid
        # OS X stores objects like uid/gid as strings.
        # Try casting to an integer for these cases to be
        # consistent with the other providers and the group type
        # validation
        begin
          ds_value = Integer(ds_value[0])
        rescue ArgumentError
          ds_value = ds_value[0]
        end
      else ds_value = ds_value[0]
    end
    attribute_hash[@@ds_to_ns_attribute_map[ds_attribute]] = ds_value
  end

  # NBK: need to read the existing password here as it's not actually
  # stored in the user record. It is stored at a path that involves the
  # UUID of the user record for non-Mobile local acccounts.
  # Mobile Accounts are out of scope for this provider for now
  attribute_hash[:password] = self.get_password(attribute_hash[:guid]) if @resource_type.validproperties.include?(:password) and Puppet.features.root?
  attribute_hash
end

.get_ds_path ⇒ Object 



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# File 'lib/puppet/provider/nameservice/directoryservice.rb', line 91

def self.get_ds_path
  # JJM: 2007-07-24 This method dynamically returns the DS path we're concerned with.
  #      For example, if we're working with an user type, this will be /Users
  #      with a group type, this will be /Groups.
  #   @ds_path is an attribute of the class itself.
  return @ds_path if defined?(@ds_path)
  # JJM: "Users" or "Groups" etc ...  (Based on the Puppet::Type)
  #       Remember this is a class method, so self.class is Class
  #       Also, @resource_type seems to be the reference to the
  #       Puppet::Type this class object is providing for.
  @resource_type.name.to_s.capitalize + "s"
end

.get_exec_preamble(ds_action, resource_name = nil) ⇒ Object 



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# File 'lib/puppet/provider/nameservice/directoryservice.rb', line 249

def self.get_exec_preamble(ds_action, resource_name = nil)
  # JJM 2007-07-24
  #     DSCL commands are often repetitive and contain the same positional
  #     arguments over and over. See http://developer.apple.com/documentation/Porting/Conceptual/PortingUnix/additionalfeatures/chapter_10_section_9.html
  #     for an example of what I mean.
  #     This method spits out proper DSCL commands for us.
  #     We EXPECT name to be @resource[:name] when called from an instance object.

  # 10.4 doesn't support the -plist option for dscl, and 10.5 has a
  # different format for the -url output with objects with spaces in
  # their values. *sigh*. Use -url for 10.4 in the hope this can be
  # deprecated one day, and use -plist for 10.5 and higher.
  if self.get_macosx_version_major > "10.4"
    command_vector = [ command(:dscl), "-plist", "." ]
  elsif self.get_macosx_version_major == "10.4"
    command_vector = [ command(:dscl), "-url", "." ]
  else
    fail("Puppet does not support OS X versions < 10.4")
  end

  # JJM: The actual action to perform.  See "man dscl"
  #      Common actiosn: -create, -delete, -merge, -append, -passwd
  command_vector << ds_action
  # JJM: get_ds_path will spit back "Users" or "Groups",
  # etc...  Depending on the Puppet::Type of our self.
  if resource_name
    command_vector << "/#{get_ds_path}/#{resource_name}"
  else
    command_vector << "/#{get_ds_path}"
  end
  # JJM:  This returns most of the preamble of the command.
  #       e.g. 'dscl / -create /Users/mccune'
  command_vector
end

.get_macosx_version_major ⇒ Object 



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# File 'lib/puppet/provider/nameservice/directoryservice.rb', line 104

def self.get_macosx_version_major
  return @macosx_version_major if defined?(@macosx_version_major)
  begin
    # Make sure we've loaded all of the facts
    Facter.loadfacts

    if Facter.value(:macosx_productversion_major)
      product_version_major = Facter.value(:macosx_productversion_major)
    else
      # TODO: remove this code chunk once we require Facter 1.5.5 or higher.
      Puppet.warning("DEPRECATION WARNING: Future versions of the directoryservice provider will require Facter 1.5.5 or newer.")
      product_version = Facter.value(:macosx_productversion)
      fail("Could not determine OS X version from Facter") if product_version.nil?
      product_version_major = product_version.scan(/(\d+)\.(\d+)./).join(".")
    end
    fail("#{product_version_major} is not supported by the directoryservice provider") if %w{10.0 10.1 10.2 10.3}.include?(product_version_major)
    @macosx_version_major = product_version_major
    return @macosx_version_major
  rescue Puppet::ExecutionFailure => detail
    fail("Could not determine OS X version: #{detail}")
  end
end

.get_password(guid) ⇒ Object 



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# File 'lib/puppet/provider/nameservice/directoryservice.rb', line 315

def self.get_password(guid)
  password_hash = nil
  password_hash_file = "#{@@password_hash_dir}/#{guid}"
  if File.exists?(password_hash_file) and File.file?(password_hash_file)
    fail("Could not read password hash file at #{password_hash_file}") if not File.readable?(password_hash_file)
    f = File.new(password_hash_file)
    password_hash = f.read
    f.close
  end
  password_hash
end

.instances ⇒ Object 



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# File 'lib/puppet/provider/nameservice/directoryservice.rb', line 78

def self.instances
  # JJM Class method that provides an array of instance objects of this
  #     type.
  # JJM: Properties are dependent on the Puppet::Type we're managine.
  type_property_array = [:name] + @resource_type.validproperties

  # Create a new instance of this Puppet::Type for each object present
  #    on the system.
  list_all_present.collect do |name_string|
    self.new(single_report(name_string, *type_property_array))
  end
end

.list_all_present ⇒ Object 



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# File 'lib/puppet/provider/nameservice/directoryservice.rb', line 128

def self.list_all_present
  # JJM: List all objects of this Puppet::Type already present on the system.
  begin
    dscl_output = execute(get_exec_preamble("-list"))
  rescue Puppet::ExecutionFailure => detail
    fail("Could not get #{@resource_type.name} list from DirectoryService")
  end
  dscl_output.split("\n")
end

.parse_dscl_plist_data(dscl_output) ⇒ Object 



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# File 'lib/puppet/provider/nameservice/directoryservice.rb', line 178

def self.parse_dscl_plist_data(dscl_output)
  Plist.parse_xml(dscl_output)
end

.parse_dscl_url_data(dscl_output) ⇒ Object 



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# File 'lib/puppet/provider/nameservice/directoryservice.rb', line 138

def self.parse_dscl_url_data(dscl_output)
  # we need to construct a Hash from the dscl -url output to match
  # that returned by the dscl -plist output for 10.5+ clients.
  #
  # Nasty assumptions:
  #   a) no values *end* in a colon ':', only keys
  #   b) if a line ends in a colon and the next line does start with
  #      a space, then the second line is a value of the first.
  #   c) (implied by (b)) keys don't start with spaces.

  dscl_plist = {}
  dscl_output.split("\n").inject([]) do |array, line|
    if line =~ /^\s+/   # it's a value
      array[-1] << line # add the value to the previous key
    else
      array << line
    end
    array
  end.compact

  dscl_output.each do |line|
    # This should be a 'normal' entry. key and value on one line.
    # We split on ': ' to deal with keys/values with a colon in them.
    split_array = line.split(/:\s+/)
    key = split_array.first
    value = CGI::unescape(split_array.last.strip.chomp)
    # We need to treat GroupMembership separately as it is currently
    # the only attribute we care about multiple values for, and
    # the values can never contain spaces (shortnames)
    # We also make every value an array to be consistent with the
    # output of dscl -plist under 10.5
    if key == "GroupMembership"
      dscl_plist[key] = value.split(/\s/)
    else
      dscl_plist[key] = [value]
    end
  end
  dscl_plist
end

.set_password(resource_name, guid, password_hash) ⇒ Object 



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# File 'lib/puppet/provider/nameservice/directoryservice.rb', line 284

def self.set_password(resource_name, guid, password_hash)
  password_hash_file = "#{@@password_hash_dir}/#{guid}"
  begin
    File.open(password_hash_file, 'w') { |f| f.write(password_hash)}
  rescue Errno::EACCES => detail
    fail("Could not write to password hash file: #{detail}")
  end

  # NBK: For shadow hashes, the user AuthenticationAuthority must contain a value of
  # ";ShadowHash;". The LKDC in 10.5 makes this more interesting though as it
  # will dynamically generate ;Kerberosv5;;username@LKDC:SHA1 attributes if
  # missing. Thus we make sure we only set ;ShadowHash; if it is missing, and
  # we can do this with the merge command. This allows people to continue to
  # use other custom AuthenticationAuthority attributes without stomping on them.
  #
  # There is a potential problem here in that we're only doing this when setting
  # the password, and the attribute could get modified at other times while the
  # hash doesn't change and so this doesn't get called at all... but
  # without switching all the other attributes to merge instead of create I can't
  # see a simple enough solution for this that doesn't modify the user record
  # every single time. This should be a rather rare edge case. (famous last words)

  dscl_vector = self.get_exec_preamble("-merge", resource_name)
  dscl_vector << "AuthenticationAuthority" << ";ShadowHash;"
  begin
    dscl_output = execute(dscl_vector)
  rescue Puppet::ExecutionFailure => detail
    fail("Could not set AuthenticationAuthority.")
  end
end

.single_report(resource_name, *type_properties) ⇒ Object 



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# File 'lib/puppet/provider/nameservice/directoryservice.rb', line 214

def self.single_report(resource_name, *type_properties)
  # JJM 2007-07-24:
  #     Given a the name of an object and a list of properties of that
  #     object, return all property values in a hash.
  #
  #     This class method returns nil if the object doesn't exist
  #     Otherwise, it returns a hash of the object properties.

  all_present_str_array = list_all_present

  # NBK: shortcut the process if the resource is missing
  return nil unless all_present_str_array.include? resource_name

  dscl_vector = get_exec_preamble("-read", resource_name)
  begin
    dscl_output = execute(dscl_vector)
  rescue Puppet::ExecutionFailure => detail
    fail("Could not get report.  command execution failed.")
  end

  # Two code paths is ugly, but until we can drop 10.4 support we don't
  # have a lot of choice. Ultimately this should all be done using Ruby
  # to access the DirectoryService APIs directly, but that's simply not
  # feasible for a while yet.
  if self.get_macosx_version_major > "10.4"
    dscl_plist = self.parse_dscl_plist_data(dscl_output)
  elsif self.get_macosx_version_major == "10.4"
    dscl_plist = self.parse_dscl_url_data(dscl_output)
  else
    fail("Puppet does not support OS X versions < 10.4")
  end

  self.generate_attribute_hash(dscl_plist, *type_properties)
end

Instance Method Details

#add_members(current_members, new_members) ⇒ Object 



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# File 'lib/puppet/provider/nameservice/directoryservice.rb', line 459

def add_members(current_members, new_members)
  new_members.flatten.each do |new_member|
    if current_members.nil? or not current_members.include?(new_member)
      cmd = [:dseditgroup, "-o", "edit", "-n", ".", "-a", new_member, @resource[:name]]
      begin
        execute(cmd)
      rescue Puppet::ExecutionFailure => detail
        fail("Could not add #{new_member} to group: #{@resource.name}, #{detail}")
      end
    end
  end
end

#create ⇒ Object

NBK: we override @parent.create as we need to execute a series of commands to create objects with dscl, rather than the single command nameservice.rb expects to be returned by addcmd. Thus we don’t bother defining addcmd.



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# File 'lib/puppet/provider/nameservice/directoryservice.rb', line 399

def create
  if exists?
    info "already exists"
    return nil
  end

  # NBK: First we create the object with a known guid so we can set the contents
  # of the password hash if required
  # Shelling out sucks, but for a single use case it doesn't seem worth
  # requiring people install a UUID library that doesn't come with the system.
  # This should be revisited if Puppet starts managing UUIDs for other platform
  # user records.
  guid = %x{/usr/bin/uuidgen}.chomp

  exec_arg_vector = self.class.get_exec_preamble("-create", @resource[:name])
  exec_arg_vector << @@ns_to_ds_attribute_map[:guid] << guid
  begin
    execute(exec_arg_vector)
  rescue Puppet::ExecutionFailure => detail
    fail("Could not set GeneratedUID for #{@resource.class.name} #{@resource.name}: #{detail}")
  end

  if value = @resource.should(:password) and value != ""
    self.class.set_password(@resource[:name], guid, value)
  end

  # Now we create all the standard properties
  Puppet::Type.type(@resource.class.name).validproperties.each do |property|
    next if property == :ensure
    if value = @resource.should(property) and value != ""
      if property == :members
        add_members(nil, value)
      else
        exec_arg_vector = self.class.get_exec_preamble("-create", @resource[:name])
        exec_arg_vector << @@ns_to_ds_attribute_map[symbolize(property)]
        next if property == :password  # skip setting the password here
        exec_arg_vector << value.to_s
        begin
          execute(exec_arg_vector)
        rescue Puppet::ExecutionFailure => detail
          fail("Could not create #{@resource.class.name} #{@resource.name}: #{detail}")
        end
      end
    end
  end
end

#deletecmd ⇒ Object 



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# File 'lib/puppet/provider/nameservice/directoryservice.rb', line 472

def deletecmd
  # JJM: Like addcmd, only called when deleting the object itself
  #    Note, this isn't used to delete properties of the object,
  #    at least that's how I understand it...
  self.class.get_exec_preamble("-delete", @resource[:name])
end

#ensure=(ensure_value) ⇒ Object 



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# File 'lib/puppet/provider/nameservice/directoryservice.rb', line 327

def ensure=(ensure_value)
  super
  # We need to loop over all valid properties for the type we're
  # managing and call the method which sets that property value
  # dscl can't create everything at once unfortunately.
  if ensure_value == :present
    @resource.class.validproperties.each do |name|
      next if name == :ensure
      # LAK: We use property.sync here rather than directly calling
      # the settor method because the properties might do some kind
      # of conversion.  In particular, the user gid property might
      # have a string and need to convert it to a number
      if @resource.should(name)
        @resource.property(name).sync
      elsif value = autogen(name)
        self.send(name.to_s + "=", value)
      else
        next
      end
    end
  end
end

#getinfo(refresh = false) ⇒ Object 



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# File 'lib/puppet/provider/nameservice/directoryservice.rb', line 479

def getinfo(refresh = false)
  # JJM 2007-07-24:
  #      Override the getinfo method, which is also defined in nameservice.rb
  #      This method returns and sets @infohash
  # I'm not re-factoring the name "getinfo" because this method will be
  # most likely called by nameservice.rb, which I didn't write.
  if refresh or (! defined?(@property_value_cache_hash) or ! @property_value_cache_hash)
    # JJM 2007-07-24: OK, there's a bit of magic that's about to
    # happen... Let's see how strong my grip has become... =)
    #
    # self is a provider instance of some Puppet::Type, like
    # Puppet::Type::User::ProviderDirectoryservice for the case of the
    # user type and this provider.
    #
    # self.class looks like "user provider directoryservice", if that
    # helps you ...
    #
    # self.class.resource_type is a reference to the Puppet::Type class,
    # probably Puppet::Type::User or Puppet::Type::Group, etc...
    #
    # self.class.resource_type.validproperties is a class method,
    # returning an Array of the valid properties of that specific
    # Puppet::Type.
    #
    # So... something like [:comment, :home, :password, :shell, :uid,
    # :groups, :ensure, :gid]
    #
    # Ultimately, we add :name to the list, delete :ensure from the
    # list, then report on the remaining list. Pretty whacky, ehh?
    type_properties = [:name] + self.class.resource_type.validproperties
    type_properties.delete(:ensure) if type_properties.include? :ensure
    type_properties << :guid  # append GeneratedUID so we just get the report here
    @property_value_cache_hash = self.class.single_report(@resource[:name], *type_properties)
    [:uid, :gid].each do |param|
      @property_value_cache_hash[param] = @property_value_cache_hash[param].to_i if @property_value_cache_hash and @property_value_cache_hash.include?(param)
    end
  end
  @property_value_cache_hash
end

#password=(passphrase) ⇒ Object 



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# File 'lib/puppet/provider/nameservice/directoryservice.rb', line 350

def password=(passphrase)
  exec_arg_vector = self.class.get_exec_preamble("-read", @resource.name)
  exec_arg_vector << @@ns_to_ds_attribute_map[:guid]
  begin
    guid_output = execute(exec_arg_vector)
    guid_plist = Plist.parse_xml(guid_output)
    # Although GeneratedUID like all DirectoryService values can be multi-valued
    # according to the schema, in practice user accounts cannot have multiple UUIDs
    # otherwise Bad Things Happen, so we just deal with the first value.
    guid = guid_plist["dsAttrTypeStandard:#{@@ns_to_ds_attribute_map[:guid]}"][0]
    self.class.set_password(@resource.name, guid, passphrase)
  rescue Puppet::ExecutionFailure => detail
    fail("Could not set #{param} on #{@resource.class.name}[#{@resource.name}]: #{detail}")
  end
end

#remove_unwanted_members(current_members, new_members) ⇒ Object 



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# File 'lib/puppet/provider/nameservice/directoryservice.rb', line 446

def remove_unwanted_members(current_members, new_members)
  current_members.each do |member|
    if not new_members.flatten.include?(member)
      cmd = [:dseditgroup, "-o", "edit", "-n", ".", "-d", member, @resource[:name]]
      begin
        execute(cmd)
      rescue Puppet::ExecutionFailure => detail
        fail("Could not remove #{member} from group: #{@resource.name}, #{detail}")
      end
    end
  end
end

#set(param, value) ⇒ Object

NBK: we override @parent.set as we need to execute a series of commands to deal with array values, rather than the single command nameservice.rb expects to be returned by modifycmd. Thus we don’t bother defining modifycmd.



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# File 'lib/puppet/provider/nameservice/directoryservice.rb', line 370

def set(param, value)
  self.class.validate(param, value)
  current_members = @property_value_cache_hash[:members]
  if param == :members
    # If we are meant to be authoritative for the group membership
    # then remove all existing members who haven't been specified
    # in the manifest.
    remove_unwanted_members(current_members, value) if @resource[:auth_membership] and not current_members.nil?

    # if they're not a member, make them one.
    add_members(current_members, value)
  else
    exec_arg_vector = self.class.get_exec_preamble("-create", @resource[:name])
    # JJM: The following line just maps the NS name to the DS name
    #      e.g. { :uid => 'UniqueID' }
    exec_arg_vector << @@ns_to_ds_attribute_map[symbolize(param)]
    # JJM: The following line sends the actual value to set the property to
    exec_arg_vector << value.to_s
    begin
      execute(exec_arg_vector)
    rescue Puppet::ExecutionFailure => detail
      fail("Could not set #{param} on #{@resource.class.name}[#{@resource.name}]: #{detail}")
    end
  end
end