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<?
# Lifter002: TODO
# Lifter007: TODO
# Lifter003: TODO
# Lifter010: TODO
/**
* sri.inc.php
*
* The Stud.IP-remote-include interface to extern modules.
*
*
* @author Peter Thienel <pthienel@web.de>, Suchi & Berg GmbH <info@data-quest.de>
* @access public
* @modulegroup extern
* @module extern
* @package studip_extern
*/
// +---------------------------------------------------------------------------+
// This file is part of Stud.IP
// sri.inc.php
// Stud.IP-remote-include interface to extern modules.
// Copyright (C) 2003 Peter Thienel <pthienel@web.de>,
// Suchi & Berg GmbH <info@data-quest.de>
// +---------------------------------------------------------------------------+
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or any later version.
// +---------------------------------------------------------------------------+
// This program 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 General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
// +---------------------------------------------------------------------------+
if (!Config::get()->EXTERN_SRI_ENABLE) {
echo $EXTERN_ERROR_MESSAGE;
exit;
}
if (!ini_get('allow_url_fopen')){
@ini_set('allow_url_fopen','1');
}
// this script is included in extern.inc.php
$all_semester = Semester::findAllVisible(false);
if ($sri_file = @file($page_url))
$sri_page = implode("", $sri_file);
else {
echo $EXTERN_ERROR_MESSAGE;
exit;
}
$sri_pattern = "'(.*)(\<studip_remote_include\>.*\<\/studip_remote_include\>)(.*)'is";
if (!preg_match($sri_pattern, $sri_page, $sri_matches)) {
echo $EXTERN_ERROR_MESSAGE;
exit;
}
$parser = xml_parser_create();
xml_parser_set_option($parser, XML_OPTION_CASE_FOLDING, 0);
xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, 1);
xml_parse_into_struct($parser, $sri_matches[2], $xml_values, $xml_tags);
$allowed_xml_tags = ["module", "range", "config", "sem", "global"];
foreach ($allowed_xml_tags as $xml_tag) {
if ($xml_tags[$xml_tag]) {
$attributes = $xml_values[$xml_tags[$xml_tag][0]]["attributes"];
foreach ($attributes as $attribute => $value) {
$parameter_name = $xml_tag . "_" . $attribute;
$$parameter_name = $value;
}
}
}
// check given data
// no range_id? sorry...
if (!$range_id) {
echo $EXTERN_ERROR_MESSAGE;
exit;
}
// Is it a valid module name?
reset($EXTERN_MODULE_TYPES);
foreach ($EXTERN_MODULE_TYPES as $module_type => $module_data) {
if ($module_data["module"] == $module_name) {
$type = $module_type;
break;
}
}
// Wrong module name!
if (!$type) {
echo $EXTERN_ERROR_MESSAGE;
exit;
}
// if there is no config_id or config_name, take the DEFAULT configuration
if ($config_name) {
// check for valid configuration name and convert it into a config_id
if (!$config_id = ExternConfig::GetConfigurationByName($range_id, $type, $config_name)) {
echo $EXTERN_ERROR_MESSAGE;
exit;
}
}
elseif (!$config_id) {
// check for standard configuration
if ($id = ExternConfig::GetStandardConfiguration($range_id, $type)) {
$config_id = $id;
} else {
if (Config::get()->EXTERN_ALLOW_ACCESS_WITHOUT_CONFIG) {
// use default configuraion
$default = 'DEFAULT';
$config_id = '';
} else {
echo $EXTERN_ERROR_MESSAGE;
exit;
}
}
}
// if there is no global_id or global_name, take the DEFAULT global configuration
if ($global_name) {
// check for valid configuration name and convert it into a config_id
if (!$global_id = ExternConfig::GetConfigurationByName($range_id, $type, $config_name)) {
echo $EXTERN_ERROR_MESSAGE;
exit;
}
}
elseif (!$global_id) {
// check for standard configuration
if ($id = ExternConfig::GetGlobalConfiguration($range_id))
$global_id = $id;
else {
// use no global configuration
$global_id = NULL;
}
}
// sem == -1: show data from last semester
// sem == +1: show data from next semester
// other values: show data from current semester
$now = time();
foreach ($all_semester as $key => $sem_record) {
if ($now >= $sem_record["beginn"] && $now <= $sem_record["ende"]) {
$current = $key;
break;
}
}
if ($sem_offset == "-1") {
$start = $all_semester[$current - 1]["beginn"];
$end = $all_semester[$current - 1]["ende"];
} elseif ($sem_offset == "+1") {
$start = $all_semester[$current + 1]["beginn"];
$end = $all_semester[$current + 1]["ende"];
} else {
$start = $all_semester[$current]["beginn"];
$end = $all_semester[$current]["ende"];
}
// all parameters ok, instantiate module and print data
foreach ($EXTERN_MODULE_TYPES as $type) {
if ($type["module"] == $module_name) {
$class_name = "ExternModule" . $module_name;
require_once "lib/extern/modules/$class_name.class.php";
$module_obj = ExternModule::GetInstance($range_id, $module_name, $config_id, $default, $global_id);
}
}
// drop URL parameters from page_url
$page_url = preg_replace('/\?.*/', '', Request::get('page_url'));
$sri_url = $module_obj->config->getValue('Main', 'sriurl');
if (isset($sri_url)) {
// drop URL parameters from sri_url
$sri_url = preg_replace('/\?.*/', '', $sri_url);
}
if ($page_url != $sri_url || !sri_is_enabled($module_obj->config->range_id)) {
echo $EXTERN_ERROR_MESSAGE;
exit;
}
$args = $module_obj->getArgs();
foreach ($args as $arg) {
$arguments[$arg] = Request::quoted($arg);
}
echo $sri_matches[1];
$module_obj->printout($arguments);
echo $sri_matches[3];
|
