mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-11-08 00:54:15 +01:00
263 lines
8.3 KiB
PHP
263 lines
8.3 KiB
PHP
<?php
|
|
/**************************************************************************\
|
|
* eGroupWare API - Hooks *
|
|
* This file written by Dan Kuykendall <seek3r@phpgroupware.org> *
|
|
* Allows applications to "hook" into each other *
|
|
* Copyright (C) 2000, 2001 Dan Kuykendall *
|
|
* -------------------------------------------------------------------------*
|
|
* This library is part of the eGroupWare API *
|
|
* http://www.egroupware.org/api *
|
|
* ------------------------------------------------------------------------ *
|
|
* This library is free software; you can redistribute it and/or modify it *
|
|
* under the terms of the GNU Lesser General Public License as published by *
|
|
* the Free Software Foundation; either version 2.1 of the License, *
|
|
* or any later version. *
|
|
* This library is distributed in the hope that it will be useful, but *
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of *
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. *
|
|
* See the GNU Lesser General Public License for more details. *
|
|
* You should have received a copy of the GNU Lesser General Public License *
|
|
* along with this library; if not, write to the Free Software Foundation, *
|
|
* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
|
|
\**************************************************************************/
|
|
|
|
/* $Id$ */
|
|
|
|
/*!
|
|
@class hooks
|
|
@abstract class which gives ability for applications to set and use hooks to communicate with each other
|
|
@author Dan Kuykendall
|
|
@copyright LGPL
|
|
@package phpgwapi
|
|
@access public
|
|
*/
|
|
|
|
class hooks
|
|
{
|
|
var $found_hooks = Array();
|
|
var $db = '';
|
|
|
|
function hooks($db='')
|
|
{
|
|
$this->db = $db ? $db : $GLOBALS['phpgw']->db; // this is to allow setup to set the db
|
|
|
|
$this->db->query("SELECT hook_appname, hook_location, hook_filename FROM phpgw_hooks",__LINE__,__FILE__);
|
|
while( $this->db->next_record() )
|
|
{
|
|
$this->found_hooks[$this->db->f('hook_appname')][$this->db->f('hook_location')] = $this->db->f('hook_filename');
|
|
}
|
|
//echo '<pre>';
|
|
//print_r($this->found_hooks);
|
|
//echo '</pre>';
|
|
}
|
|
|
|
/*!
|
|
@function process
|
|
@abstract executes all the hooks (the user has rights to) for a given location
|
|
@syntax process($args,$order='',$no_permission_check = False)
|
|
@param $args location-name as string or array:
|
|
@param $args['location'] location-name
|
|
@param $order or $args['order'] array of appnames (as value), which should be executes first
|
|
@param $args is passed to the hook, if its a new method-hook
|
|
@param $no_permission_check if True execute all hooks, not only the ones a user has rights to
|
|
@note $no_permission_check should *ONLY* be used when it *HAS* to be. (jengo)
|
|
@returns array with results of each hook call (with appname as key): \
|
|
False if no hook exists, True if old hook exists \
|
|
and whatever the new method-hook returns (can be True or False too!).
|
|
*/
|
|
function process($args, $order = '', $no_permission_check = False)
|
|
{
|
|
//echo "<p>hooks::process("; print_r($args); echo ")</p>\n";
|
|
if ($order == '')
|
|
{
|
|
$order = is_array($args) && isset($args['order']) ? $args['order'] :
|
|
array($GLOBALS['phpgw_info']['flags']['currentapp']);
|
|
}
|
|
|
|
/* First include the ordered apps hook file */
|
|
foreach($order as $appname)
|
|
{
|
|
$results[$appname] = $this->single($args,$appname,$no_permission_check);
|
|
|
|
if (!isset($results[$appname])) // happens if the method hook has no return-value
|
|
{
|
|
$results[$appname] = False;
|
|
}
|
|
}
|
|
|
|
/* Then add the rest */
|
|
if ($no_permission_check)
|
|
{
|
|
$apps = $GLOBALS['phpgw_info']['apps'];
|
|
}
|
|
else
|
|
{
|
|
$apps = $GLOBALS['phpgw_info']['user']['apps'];
|
|
}
|
|
settype($apps,'array');
|
|
foreach($apps as $app)
|
|
{
|
|
$appname = $app['name'];
|
|
if (!isset($results[$appname]))
|
|
{
|
|
$results[$appname] = $this->single($args,$appname,$no_permission_check);
|
|
}
|
|
}
|
|
return $results;
|
|
}
|
|
|
|
/*!
|
|
@function single
|
|
@abstract executes a single hook of a given location and application
|
|
@syntax single($args,$appname='',$no_permission_check = False)
|
|
@param $args location-name as string or array:
|
|
@param $args['location'] location-name
|
|
@param $appname or $args['appname'] name of the app, which's hook to execute, if empty the current app is used
|
|
@param $args is passed to the hook, if its a new method-hook
|
|
@param $no_permission_check if True execute all hooks, not only the ones a user has rights to
|
|
@param $try_unregisterd If true, try to include old file-hook anyway (for setup)
|
|
@note $no_permission_check should *ONLY* be used when it *HAS* to be. (jengo)
|
|
@returns False if no hook exists, True if an old hook exist and whatever the new method-hook returns
|
|
*/
|
|
function single($args, $appname = '', $no_permission_check = False,$try_unregistered = False)
|
|
{
|
|
//echo "<p>hooks::single("; print_r($args); echo ",'$appname','$no_permission_check','$try_unregistered')</p>\n";
|
|
if (is_array($args))
|
|
{
|
|
$location = $args['location'];
|
|
}
|
|
else
|
|
{
|
|
$location = $args;
|
|
}
|
|
if (!$appname)
|
|
{
|
|
$appname = is_array($args) && isset($args['appname']) ? $args['appname'] : $GLOBALS['phpgw_info']['flags']['currentapp'];
|
|
}
|
|
$SEP = filesystem_separator();
|
|
|
|
/* First include the ordered apps hook file */
|
|
if (isset($this->found_hooks[$appname][$location]) || $try_unregistered)
|
|
{
|
|
$parts = explode('.',$method = $this->found_hooks[$appname][$location]);
|
|
|
|
if (count($parts) != 3 || ($parts[1] == 'inc' && $parts[2] == 'php'))
|
|
{
|
|
if ($try_unregistered && empty($method))
|
|
{
|
|
$method = 'hook_'.$location.'.inc.php';
|
|
}
|
|
$f = PHPGW_SERVER_ROOT . $SEP . $appname . $SEP . 'inc' . $SEP . $method;
|
|
if (file_exists($f) &&
|
|
( $GLOBALS['phpgw_info']['user']['apps'][$appname] || (($no_permission_check || $location == 'config' || $appname == 'phpgwapi') && $appname)) )
|
|
{
|
|
include($f);
|
|
return True;
|
|
}
|
|
else
|
|
{
|
|
return False;
|
|
}
|
|
}
|
|
else // new style method-hook
|
|
{
|
|
return ExecMethod($method,$args);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
return False;
|
|
}
|
|
}
|
|
|
|
/*!
|
|
@function count
|
|
@abstract loop through the applications and count the hooks
|
|
*/
|
|
function count($location)
|
|
{
|
|
$count = 0;
|
|
foreach($GLOBALS['phpgw_info']['user']['apps'] as $appname => $data)
|
|
{
|
|
if (isset($this->found_hooks[$appname][$location]))
|
|
{
|
|
++$count;
|
|
}
|
|
}
|
|
return $count;
|
|
}
|
|
|
|
/*!
|
|
@function read()
|
|
@abstract currently not being used
|
|
*/
|
|
function read()
|
|
{
|
|
//if (!is_array($this->found_hooks))
|
|
//{
|
|
$this->hooks();
|
|
//}
|
|
return $this->found_hooks;
|
|
}
|
|
|
|
/*!
|
|
@function register_hooks
|
|
@abstract Register and/or de-register an application's hooks
|
|
@syntax register_hooks($appname,$hooks='')
|
|
@param $appname Application 'name'
|
|
@param $hooks array with hooks to register, eg $setup_info[$app]['hooks'] or not used for only deregister the hooks
|
|
*/
|
|
function register_hooks($appname,$hooks='')
|
|
{
|
|
if(!$appname)
|
|
{
|
|
return False;
|
|
}
|
|
$db_appname = $this->db->db_addslashes($appname);
|
|
$this->db->query("DELETE FROM phpgw_hooks WHERE hook_appname='$db_appname'",__LINE__,__FILE__);
|
|
|
|
if (!is_array($hooks)) // only deregister
|
|
{
|
|
return True;
|
|
}
|
|
//echo "<p>ADDING hooks for: $appname</p>";
|
|
foreach($hooks as $key => $hook)
|
|
{
|
|
if (!is_numeric($key)) // new method-hook
|
|
{
|
|
$location = $key;
|
|
$filename = $hook;
|
|
}
|
|
else
|
|
{
|
|
$location = $hook;
|
|
$filename = "hook_$hook.inc.php";
|
|
}
|
|
$this->db->query("INSERT INTO phpgw_hooks (hook_appname,hook_location,hook_filename)".
|
|
" VALUES ('$appname','$location','$filename')");
|
|
}
|
|
return True;
|
|
}
|
|
|
|
|
|
/*!
|
|
@function register_all_hooks
|
|
@abstract Register the hooks of all applications (used by admin)
|
|
*/
|
|
function register_all_hooks()
|
|
{
|
|
$SEP = filesystem_separator();
|
|
|
|
foreach($GLOBALS['phpgw_info']['apps'] as $appname => $app)
|
|
{
|
|
$f = PHPGW_SERVER_ROOT . $SEP . $appname . $SEP . 'setup' . $SEP . 'setup.inc.php';
|
|
if(@file_exists($f))
|
|
{
|
|
include($f);
|
|
$this->register_hooks($appname,$setup_info[$appname]['hooks']);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
?>
|