146 lines
3.0 KiB
ReStructuredText
146 lines
3.0 KiB
ReStructuredText
Custom functions
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================
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Custom functions allow one to extend LL::NG, they can be used in
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:ref:`headers`,
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:ref:`rules` or
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:doc:`form replay data<formreplay>`. Two actions are needed:
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- declare them in LLNG configuration
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- load the relevant code
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Implementation
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--------------
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Your perl custom functions must be declared on appropriate server when
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separating:
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**Portal type**: declare custom functions here when using it in rules,
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macros or menu.
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**Reverse-proxy type**: declare custom functions here when using it in
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headers.
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Write custom functions library
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------------------------------
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Create your Perl module with custom functions. You can name your module
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as you want, for example ``SSOExtensions.pm``:
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::
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vi /path/to/SSOExtensions.pm
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.. code-block:: perl
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package SSOExtensions;
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sub function1 {
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my (@args) = @_;
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# Your nice code here
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return $result;
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}
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sub function2 {
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return $_[0];
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}
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1;
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Import custom functions in LemonLDAP::NG
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----------------------------------------
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Load relevant code in handler server
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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New method
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^^^^^^^^^^
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Just declare files or Perl module that must be loaded:
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::
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[all]
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require = /path/to/functions.pl, /path/to/SSOExtensions.pm
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# OR
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require = SSOExtensions::function1, SSOExtensions::function2
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; Prevent Portal to crash if Perl module is not found
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;requireDontDie = 1
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Old method
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^^^^^^^^^^
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.. danger::
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This method is available but unusable by Portal under
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Apache. So if your rule may be used by the menu, use the new
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method.
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Apache
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''''''
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Your module has to be loaded by Apache (for example after Handler load):
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.. code-block:: apache
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# Perl environment
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PerlRequire Lemonldap::NG::Handler
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PerlRequire /path/to/SSOExtensions.pm
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PerlOptions +GlobalRequest
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FastCGI server (Nginx)
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''''''''''''''''''''''
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You've just to incicate to :doc:`LLNG FastCGI server<fastcgiserver>` the
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file to read using either ``-f`` option or ``CUSTOM_FUNCTIONS_FILE``
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environment variable. Using packages, you just have to modify your
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``/etc/default/llng-fastcgi-server`` (or
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``/etc/default/lemonldap-ng-fastcgi-server``) file:
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.. code-block:: sh
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# Number of process (default: 7)
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#NPROC = 7
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# Unix socket to listen to
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SOCKET=/var/run/llng-fastcgi-server/llng-fastcgi.sock
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# Pid file
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PID=/var/run/llng-fastcgi-server/llng-fastcgi-server.pid
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# User and GROUP
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USER=www-data
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GROUP=www-data
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# Custom functions file
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CUSTOM_FUNCTIONS_FILE=/path/to/SSOExtensions.pm
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Declare custom functions
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~~~~~~~~~~~~~~~~~~~~~~~~
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Go in Manager, ``General Parameters`` » ``Advanced Parameters`` »
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``Custom functions`` and set:
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::
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SSOExtensions::function1, SSOExtensions::function2
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.. attention::
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If your function is not compliant with
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:doc:`Safe jail<safejail>`, you will need to disable the jail.
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Use it
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------
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You can now use your function in a macro, an header or an access rule,
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for example:
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::
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SSOExtensions::function1( $uid, $ENV{REMOTE_ADDR} )
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