1Authen::SASL(3) User Contributed Perl Documentation Authen::SASL(3)
2
6 Authen::SASL - SASL Authentication framework
7
9 use Authen::SASL;
10 $sasl = Authen::SASL->new(
12 mechanism => 'CRAM-MD5 PLAIN ANONYMOUS',
13 callback => {
14 pass => \&fetch_password,
15 user => $user,
16 }
17 );
18
20 SASL is a generic mechanism for authentication used by several network
21 protocols. Authen::SASL provides an implementation framework that all
22 protocols should be able to share.
23 The framework allows different implementations of the connection class
25 to be plugged in. At the time of writing there were two such plugins.
26 Authen::SASL::Perl
28 This module implements several mechanisms and is implemented
29 entirely in Perl.
30 Authen::SASL::XS
32 This module uses the Cyrus SASL C-library (both version 1 and 2 are
33 supported).
34 Authen::SASL::Cyrus
36 This module is the predecessor to Authen::SASL::XS. It is
37 reccomended to use Authen::SASL::XS
38 By default the order in which these plugins are selected is
40 Authen::SASL::XS, Authen::SASL::Cyrus and then Authen::SASL::Perl.
41 If you want to change it or want to specifically use one implementation
43 only simply do
44 use Authen::SASL qw(Perl);
46 or if you have another plugin module that supports the Authen::SASL API
48 use Authen::SASL qw(My::SASL::Plugin);
50 CONTRUCTOR
52 new ( OPTIONS )
53 The constructor may be called with or without arguments. Passing
54 arguments is just a short cut to calling the "mechanism" and
55 "callback" methods.
56 callback => { NAME => VALUE, NAME => VALUE, ... }
58 Set the callbacks. See the callback method for details.
59 mechanism => NAMES
61 mech => NAMES
62 Set the list of mechanisms to choose from. See the mechanism
63 method for details.
64 debug => VALUE
66 Set the debug level bit-value to "VALUE"
67 Debug output will be sent to "STDERR". The bits of this value
69 are:
70 1 Show debug messages in the Perl modules for the mechanisms.
72 (Currently only used in GSSAPI)
73 4 With security layers in place show information on packages read.
74 8 With security layers in place show information on packages written.
75 The default value is 0.
77 METHODS
79 mechanism ( )
80 Returns the current list of mechanisms
81 mechanism ( NAMES )
83 Set the list of mechanisms to choose from. "NAMES" should be a
84 space separated string of the names.
85 callback ( NAME )
87 Returns the current callback associated with "NAME".
88 callback ( NAME => VALUE, NAME => VALUE, ... )
90 Sets the given callbacks to the given values
91 client_new ( SERVICE, HOST, SECURITY )
93 Creates and returns a new connection object for a client-side
94 connection.
95 server_new ( SERVICE, HOST, OPTIONS )
97 Creates and returns a new connection object for a server-side
98 connection.
99 error ( )
101 Returns any error from the last connection
102
104 server_start ( CHALLENGE )
105 server_start begins the authentication using the chosen mechanism.
106 If the mechanism is not supported by the installed SASL it fails.
107 Because for some mechanisms the client has to start the
108 negotiation, you can give the client challenge as a parameter.
109 server_step ( CHALLENGE )
111 server_step performs the next step in the negotiation process. The
112 first parameter you give is the clients challenge/response.
113 client_start ( )
115 The initial step to be performed. Returns the initial value to pass
116 to the server or an empty list on error.
117 client_step ( CHALLENGE )
119 This method is called when a response from the server requires it.
120 CHALLENGE is the value from the server. Returns the next value to
121 pass to the server or an empty list on error.
122 need_step ( )
124 Returns true if the selected mechanism requires another step before
125 completion (error or success).
126 answer ( NAME )
128 The method will return the value returned from the last call to the
129 callback NAME
130 property ( NAME )
132 Returns the property value associated with "NAME".
133 property ( NAME => VALUE, NAME => VALUE, ... )
135 Sets the named properties to their associated values.
136 service ( )
138 Returns the service argument that was passed to *_new-methods.
139 host ( )
141 Returns the host argument that was passed to *_new-methods.
142 mechanism ( )
144 Returns the name of the chosen mechanism.
145 is_success ( )
147 Once need_step() returns false, then you can check if the
148 authentication succeeded by calling this method which returns a
149 boolean value.
150 Callbacks
152 There are three different ways in which a callback may be passed
153 CODEREF
155 If the value passed is a code reference then, when needed, it will
156 be called and the connection object will be passed as the first
157 argument. In addition some callbacks may be passed additional
158 arguments.
159 ARRAYREF
161 If the value passed is an array reference, the first element in the
162 array must be a code reference. When the callback is called the
163 code reference will be called with the connection object passed as
164 the first argument and all other values from the array passed
165 after.
166 SCALAR
168 All other values passed will be used directly. ie it is the same as
169 passing an code reference that, when called, returns the value.
170
172 Authen::SASL::Perl, Authen::SASL::XS, Authen::SASL::Cyrus
173
175 Graham Barr <gbarr@pobox.com>
176 Please report any bugs, or post any suggestions, to the perl-ldap
178 mailing list <perl-ldap@perl.org>
179
181 Copyright (c) 1998-2005 Graham Barr. All rights reserved. This program
182 is free software; you can redistribute it and/or modify it under the
183 same terms as Perl itself.
184perl v5.26.3 2012-09-04 Authen::SASL(3)