114 lines
5.2 KiB
PHP
114 lines
5.2 KiB
PHP
<?php
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// Project: Web Reference Database (refbase) <http://www.refbase.net>
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// Copyright: Matthias Steffens <mailto:refbase@extracts.de> and the file's
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// original author(s).
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//
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// This code is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY. Please see the GNU General Public
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// License for more details.
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//
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// File: ./user_logout.php
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// Repository: $HeadURL: file:///svn/p/refbase/code/branches/bleeding-edge/user_logout.php $
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// Author(s): Matthias Steffens <mailto:refbase@extracts.de>
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//
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// Created: 16-Apr-02, 10:54
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// Modified: $Date: 2015-02-16 20:53:19 +0000 (Mon, 16 Feb 2015) $
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// $Author: karnesky $
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// $Revision: 1405 $
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// This script logs a user out and redirects
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// to the calling page. If the script is called
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// unexpectedly, an error message is generated.
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// Incorporate some include files:
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include 'includes/include.inc.php'; // include common functions
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// --------------------------------------------------------------------
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// START A SESSION:
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// call the 'start_session()' function (from 'include.inc.php') which will also read out available session variables:
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start_session(true);
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// --------------------------------------------------------------------
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// Is the user logged in?
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if (isset($_SESSION['loginEmail']))
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{
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// Delete the 'loginEmail' session variable & other session variables we've registered on login:
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// (function 'deleteSessionVariable()' is defined in 'include.inc.php')
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deleteSessionVariable("loginEmail"); // remove the user's email address (as a result the user will be logged out)
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deleteSessionVariable("loginUserID"); // clear the user's user ID
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deleteSessionVariable("loginFirstName"); // clear the user's first name
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deleteSessionVariable("loginLastName"); // clear the user's last name
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deleteSessionVariable("abbrevInstitution"); // clear the user's abbreviated institution name
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deleteSessionVariable("userLanguage"); // clear the user's preferred language
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deleteSessionVariable("userDefaultView"); // clear the user's default view setting
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deleteSessionVariable("userRecordsPerPage"); // clear the user's preferred number of records per page
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deleteSessionVariable("userAutoCompletions"); // clear the user's preference for displaying auto-completions
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deleteSessionVariable("userMainFields"); // clear the user's preferred list of "main fields"
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deleteSessionVariable("lastLogin"); // clear the user's last login date & time
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if (isset($_SESSION['userGroups']))
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deleteSessionVariable("userGroups"); // clear the user's user groups (if any)
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if (isset($_SESSION['adminUserGroups']))
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deleteSessionVariable("adminUserGroups"); // clear the admin's user groups (if any)
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if (isset($_SESSION['userQueries']))
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deleteSessionVariable("userQueries"); // clear the user's saved queries (if any)
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if (isset($_SESSION['user_export_formats']))
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deleteSessionVariable("user_export_formats"); // clear the user's export formats (if any)
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if (isset($_SESSION['user_cite_formats']))
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deleteSessionVariable("user_cite_formats"); // clear the user's cite formats (if any)
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if (isset($_SESSION['user_styles']))
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deleteSessionVariable("user_styles"); // clear the user's styles (if any)
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if (isset($_SESSION['user_types']))
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deleteSessionVariable("user_types"); // clear the user's types (if any)
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if (isset($_SESSION['user_permissions']))
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deleteSessionVariable("user_permissions"); // clear any user-specific permissions
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if (isset($_SESSION['HeaderString']))
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deleteSessionVariable("HeaderString"); // clear any previous messages
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if (isset($_SESSION['cqlQuery']))
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deleteSessionVariable("cqlQuery"); // clear any stored OpenSearch/CQL query
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if (isset($_SESSION['oldQuery']))
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deleteSessionVariable("oldQuery"); // clear any query URL pointing to the formerly displayed results page
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if (isset($_SESSION['oldMultiRecordQuery']))
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deleteSessionVariable("oldMultiRecordQuery"); // clear any query URL pointing to the last multi-record query
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if (isset($_SESSION['lastListViewQuery']))
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deleteSessionVariable("lastListViewQuery"); // clear any SQL query generated for the last List view
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if (isset($_SESSION['lastDetailsViewQuery']))
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deleteSessionVariable("lastDetailsViewQuery"); // clear any SQL query generated for the last Details view
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// if (isset($_SESSION['lastCitationViewQuery']))
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// deleteSessionVariable("lastCitationViewQuery"); // clear any SQL query generated for the last Citation view
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if (isset($_SESSION['queryHistory']))
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deleteSessionVariable("queryHistory"); // clear any links to previous search results
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}
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else
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{
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// save an error message:
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$HeaderString = "You cannot logout since you are not logged in anymore!";
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// Write back session variables:
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saveSessionVariable("HeaderString", $HeaderString); // function 'saveSessionVariable()' is defined in 'include.inc.php'
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}
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if (!preg_match("/.*user(_details|_options|_receipt|s)\.php.*|.*(error|install|query_manager|query_history)\.php.*/", $referer)) // variable '$referer' is globally defined in function 'start_session()' in 'include.inc.php'
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header("Location: " . $referer); // redirect the user to the calling page
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else
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header("Location: index.php"); // back to main page
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?>
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