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source: trunk/lib/App.inc.php @ 412

Last change on this file since 412 was 410, checked in by anonymous, 12 years ago
Added use of httponly for PHP session
File size: 52.3 KB

Rev	Line
[1]	1	<?php
	2	/**
[362]	3	* The Strangecode Codebase - a general application development framework for PHP
	4	* For details visit the project site: <http://trac.strangecode.com/codebase/>
[396]	5	* Copyright 2001-2012 Strangecode, LLC
[362]	6	*
	7	* This file is part of The Strangecode Codebase.
	8	*
	9	* The Strangecode Codebase is free software: you can redistribute it and/or
	10	* modify it under the terms of the GNU General Public License as published by the
	11	* Free Software Foundation, either version 3 of the License, or (at your option)
	12	* any later version.
	13	*
	14	* The Strangecode Codebase is distributed in the hope that it will be useful, but
	15	* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	16	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
	17	* details.
	18	*
	19	* You should have received a copy of the GNU General Public License along with
	20	* The Strangecode Codebase. If not, see <http://www.gnu.org/licenses/>.
	21	*/
	22
	23	/**
[1]	24	* App.inc.php
	25	*
	26	* Primary application framework class.
	27	*
	28	* @author Quinn Comendant <quinn@strangecode.com>
[136]	29	* @version 2.1
[1]	30	*/
[42]	31
[37]	32	// Message Types.
	33	define('MSG_ERR', 1);
	34	define('MSG_ERROR', MSG_ERR);
[1]	35	define('MSG_WARNING', 2);
[37]	36	define('MSG_NOTICE', 4);
	37	define('MSG_SUCCESS', 8);
[119]	38	define('MSG_ALL', MSG_SUCCESS \| MSG_NOTICE \| MSG_WARNING \| MSG_ERROR);
[1]	39
	40	require_once dirname(__FILE__) . '/Utilities.inc.php';
	41
	42	class App {
[42]	43
[136]	44	// Namespace of this application instance.
	45	var $_ns;
[1]	46
[136]	47	// If $app->start has run successfully.
[1]	48	var $running = false;
	49
	50	// Instance of database object.
	51	var $db;
[42]	52
[20]	53	// Array of query arguments will be carried persistently between requests.
	54	var $_carry_queries = array();
[1]	55
[136]	56	// Dictionary of global application parameters.
[1]	57	var $_params = array();
	58
	59	// Default parameters.
	60	var $_param_defaults = array(
	61
	62	// Public name and email address for this application.
	63	'site_name' => null,
[390]	64	'site_email' => '', // Set to no-reply@HTTP_HOST if not set here.
[39]	65	'site_url' => '', // URL automatically determined by _SERVER['HTTP_HOST'] if not set here.
[318]	66	'images_path' => '', // Location for codebase-generated interface widgets (ex: "/admin/i").
[1]	67
[136]	68	// The location the user will go if the system doesn't know where else to send them.
[1]	69	'redirect_home_url' => '/',
[42]	70
[136]	71	// SSL URL used when redirecting with $app->sslOn().
[1]	72	'ssl_domain' => null,
	73	'ssl_enabled' => false,
[42]	74
[20]	75	// Character set for page output. Used in the Content-Type header and the HTML <meta content-type> tag.
[1]	76	'character_set' => 'utf-8',
	77
	78	// Human-readable format used to display dates.
	79	'date_format' => 'd M Y',
[101]	80	'time_format' => 'h:i:s A',
[1]	81	'sql_date_format' => '%e %b %Y',
	82	'sql_time_format' => '%k:%i',
	83
	84	// Use php sessions?
	85	'enable_session' => false,
[242]	86	'session_name' => '_session',
[1]	87	'session_use_cookies' => true,
[293]	88
	89	// Pass the session-id through URLs if cookies are not enabled?
	90	// Disable this to prevent session ID theft.
[242]	91	'session_use_trans_sid' => false,
[42]	92
[1]	93	// Use database?
	94	'enable_db' => false,
	95
	96	// Use db-based sessions?
	97	'enable_db_session_handler' => false,
[42]	98
[1]	99	// DB passwords should be set as apache environment variables in httpd.conf, readable only by root.
	100	'db_server' => 'localhost',
	101	'db_name' => null,
	102	'db_user' => null,
	103	'db_pass' => null,
	104
	105	// Database debugging.
	106	'db_always_debug' => false, // TRUE = display all SQL queries.
	107	'db_debug' => false, // TRUE = display db errors.
	108	'db_die_on_failure' => false, // TRUE = script stops on db error.
[42]	109
[1]	110	// For classes that require db tables, do we check that a table exists and create if missing?
[32]	111	'db_create_tables' => true,
[1]	112
[136]	113	// The level of error reporting. Don't change this to suppress messages, instead use display_errors to control display.
[1]	114	'error_reporting' => E_ALL,
	115
	116	// Don't display errors by default; it is preferable to log them to a file.
	117	'display_errors' => false,
[42]	118
[1]	119	// Directory in which to store log files.
[19]	120	'log_directory' => '',
[1]	121
	122	// PHP error log.
	123	'php_error_log' => 'php_error_log',
	124
	125	// General application log.
[136]	126	'log_filename' => 'app_log',
[1]	127
[390]	128	// Don't email or SMS duplicate messages that happen more often than this value (in seconds).
	129	'log_multiple_timeout' => 3600, // Hourly
[341]	130
[1]	131	// Logging priority can be any of the following, or false to deactivate:
	132	// LOG_EMERG system is unusable
	133	// LOG_ALERT action must be taken immediately
	134	// LOG_CRIT critical conditions
	135	// LOG_ERR error conditions
	136	// LOG_WARNING warning conditions
	137	// LOG_NOTICE normal, but significant, condition
	138	// LOG_INFO informational message
	139	// LOG_DEBUG debug-level message
[174]	140	'log_file_priority' => LOG_INFO,
[342]	141	'log_email_priority' => false,
[1]	142	'log_sms_priority' => false,
	143	'log_screen_priority' => false,
[42]	144
[390]	145	// Email address to receive log event emails. Use multiple addresses by separating them with commas.
[342]	146	'log_to_email_address' => null,
[42]	147
[392]	148	// SMS Email address to receive log event SMS messages. Use multiple addresses by separating them with commas.
[1]	149	'log_to_sms_address' => null,
[42]	150
[406]	151	// Should we avoid logging repeated logMsg() events? You might want to set this false if you need to see more accurate logging, particularly for long-running scripts.
	152	'log_ignore_repeated_events' => true,
	153
[348]	154	// Temporary files directory.
	155	'tmp_dir' => '/tmp',
[343]	156
[19]	157	// A key for calculating simple cryptographic signatures. Set using as an environment variables in the httpd.conf with 'SetEnv SIGNING_KEY <key>'.
[136]	158	// Existing password hashes rely on the same key/salt being used to compare encryptions.
	159	// Don't change this unless you know existing hashes or signatures will not be affected!
[1]	160	'signing_key' => 'aae6abd6209d82a691a9f96384a7634a',
	161	);
[42]	162
[1]	163	/**
	164	* This method enforces the singleton pattern for this class. Only one application is running at a time.
	165	*
[136]	166	* $param string $namespace Name of this application.
	167	* @return object Reference to the global Cache object.
[1]	168	* @access public
	169	* @static
	170	*/
[380]	171	static function &getInstance($namespace='')
[1]	172	{
	173	static $instance = null;
	174
	175	if ($instance === null) {
[136]	176	$instance = new App($namespace);
[1]	177	}
	178
	179	return $instance;
	180	}
[42]	181
[1]	182	/**
	183	* Constructor.
	184	*/
[136]	185	function App($namespace='')
[1]	186	{
[136]	187	// Set namespace of application instance.
[154]	188	$this->_ns = $namespace;
[42]	189
[1]	190	// Initialize default parameters.
	191	$this->_params = array_merge($this->_params, $this->_param_defaults);
[172]	192
	193	// Begin timing script.
	194	require_once dirname(__FILE__) . '/ScriptTimer.inc.php';
	195	$this->timer = new ScriptTimer();
	196	$this->timer->start('_app');
[1]	197	}
	198
	199	/**
	200	* Set (or overwrite existing) parameters by passing an array of new parameters.
	201	*
	202	* @access public
	203	* @param array $param Array of parameters (key => val pairs).
	204	*/
	205	function setParam($param=null)
	206	{
	207	if (isset($param) && is_array($param)) {
	208	// Merge new parameters with old overriding only those passed.
[136]	209	$this->_params = array_merge($this->_params, $param);
[1]	210	}
	211	}
	212
	213	/**
	214	* Return the value of a parameter.
	215	*
	216	* @access public
	217	* @param string $param The key of the parameter to return.
	218	* @return mixed Parameter value, or null if not existing.
	219	*/
[136]	220	function getParam($param=null)
[1]	221	{
	222	if ($param === null) {
[136]	223	return $this->_params;
	224	} else if (isset($this->_params[$param])) {
	225	return $this->_params[$param];
[1]	226	} else {
[19]	227	trigger_error(sprintf('Parameter is not set: %s', $param), E_USER_NOTICE);
[1]	228	return null;
	229	}
	230	}
[42]	231
[1]	232	/**
	233	* Begin running this application.
	234	*
	235	* @access public
	236	* @author Quinn Comendant <quinn@strangecode.com>
	237	* @since 15 Jul 2005 00:32:21
	238	*/
	239	function start()
	240	{
	241	if ($this->running) {
	242	return false;
	243	}
[42]	244
[1]	245	// Error reporting.
	246	ini_set('error_reporting', $this->getParam('error_reporting'));
	247	ini_set('display_errors', $this->getParam('display_errors'));
	248	ini_set('log_errors', true);
	249	if (is_dir($this->getParam('log_directory')) && is_writable($this->getParam('log_directory'))) {
	250	ini_set('error_log', $this->getParam('log_directory') . '/' . $this->getParam('php_error_log'));
	251	}
[42]	252
[248]	253	// Set character set to use for multi-byte string functions.
	254	mb_internal_encoding($this->getParam('character_set'));
[249]	255	switch (mb_strtolower($this->getParam('character_set'))) {
	256	case 'utf-8' :
	257	mb_language('uni');
	258	break;
[42]	259
[249]	260	case 'iso-2022-jp' :
	261	mb_language('ja');
	262	break;
	263
	264	case 'iso-8859-1' :
	265	default :
	266	mb_language('en');
	267	break;
	268	}
	269
[1]	270	/**
	271	* 1. Start Database.
	272	*/
[42]	273
[103]	274	if (true === $this->getParam('enable_db')) {
[42]	275
[1]	276	// DB connection parameters taken from environment variables in the httpd.conf file, readable only by root.
	277	if (!empty($_SERVER['DB_SERVER'])) {
	278	$this->setParam(array('db_server' => $_SERVER['DB_SERVER']));
	279	}
	280	if (!empty($_SERVER['DB_NAME'])) {
	281	$this->setParam(array('db_name' => $_SERVER['DB_NAME']));
	282	}
	283	if (!empty($_SERVER['DB_USER'])) {
	284	$this->setParam(array('db_user' => $_SERVER['DB_USER']));
	285	}
	286	if (!empty($_SERVER['DB_PASS'])) {
	287	$this->setParam(array('db_pass' => $_SERVER['DB_PASS']));
	288	}
[42]	289
[136]	290	// There will ever only be one instance of the DB object, and here is where it is instantiated.
[1]	291	require_once dirname(__FILE__) . '/DB.inc.php';
	292	$this->db =& DB::getInstance();
	293	$this->db->setParam(array(
	294	'db_server' => $this->getParam('db_server'),
	295	'db_name' => $this->getParam('db_name'),
	296	'db_user' => $this->getParam('db_user'),
	297	'db_pass' => $this->getParam('db_pass'),
	298	'db_always_debug' => $this->getParam('db_always_debug'),
	299	'db_debug' => $this->getParam('db_debug'),
	300	'db_die_on_failure' => $this->getParam('db_die_on_failure'),
	301	));
	302
	303	// Connect to database.
	304	$this->db->connect();
	305	}
[42]	306
	307
[1]	308	/**
	309	* 2. Start PHP session.
	310	*/
[42]	311
[1]	312	// Skip session for some user agents.
	313	if (preg_match('/Atomz\|ApacheBench\|Wget/i', getenv('HTTP_USER_AGENT'))) {
	314	$this->setParam(array('enable_session' => false));
	315	}
[42]	316
[1]	317	if (true === $this->getParam('enable_session')) {
[42]	318
[373]	319	// Session parameters.
	320	ini_set('session.gc_probability', 1);
	321	ini_set('session.gc_divisor', 1000);
	322	ini_set('session.gc_maxlifetime', 43200); // 12 hours
	323	ini_set('session.use_cookies', $this->getParam('session_use_cookies'));
	324	ini_set('session.use_trans_sid', false);
	325	ini_set('session.entropy_file', '/dev/urandom');
	326	ini_set('session.entropy_length', '512');
[410]	327	ini_set('session.cookie_httponly', true);
[373]	328	session_name($this->getParam('session_name'));
	329
[1]	330	if (true === $this->getParam('enable_db_session_handler') && true === $this->getParam('enable_db')) {
	331	// Database session handling.
	332	require_once dirname(__FILE__) . '/DBSessionHandler.inc.php';
	333	$db_save_handler = new DBSessionHandler($this->db, array(
	334	'db_table' => 'session_tbl',
	335	'create_table' => $this->getParam('db_create_tables'),
	336	));
	337	}
[42]	338
[22]	339	// Start the session.
[1]	340	session_start();
[42]	341
[154]	342	if (!isset($_SESSION['_app'][$this->_ns])) {
[22]	343	// Access session data using: $_SESSION['...'].
	344	// Initialize here _after_ session has started.
[154]	345	$_SESSION['_app'][$this->_ns] = array(
[22]	346	'messages' => array(),
	347	'boomerang' => array('url'),
	348	);
	349	}
[1]	350	}
[42]	351
	352
[1]	353	/**
	354	* 3. Misc setup.
	355	*/
	356
	357	// Script URI will be something like http://host.name.tld (no ending slash)
	358	// and is used whenever a URL need be used to the current site.
	359	// Not available on cli scripts obviously.
[41]	360	if (isset($_SERVER['HTTP_HOST']) && '' != $_SERVER['HTTP_HOST'] && '' == $this->getParam('site_url')) {
[14]	361	$this->setParam(array('site_url' => sprintf('%s://%s', ('on' == getenv('HTTPS') ? 'https' : 'http'), getenv('HTTP_HOST'))));
[1]	362	}
[390]	363
	364	// In case site_email isn't set, use something halfway presentable.
	365	if (isset($_SERVER['HTTP_HOST']) && '' != $_SERVER['HTTP_HOST'] && '' == $this->getParam('site_email')) {
	366	$this->setParam(array('site_email' => sprintf('no-reply@%s', getenv('HTTP_HOST'))));
	367	}
[1]	368
	369	// A key for calculating simple cryptographic signatures.
	370	if (isset($_SERVER['SIGNING_KEY'])) {
	371	$this->setParam(array('signing_key' => $_SERVER['SIGNING_KEY']));
	372	}
[42]	373
[1]	374	// Character set. This should also be printed in the html header template.
	375	header('Content-type: text/html; charset=' . $this->getParam('character_set'));
[136]	376
	377	// Set the version of the codebase we're using.
	378	$codebase_version_file = dirname(__FILE__) . '/../docs/version.txt';
	379	if (is_readable($codebase_version_file)) {
	380	$codebase_version = trim(file_get_contents($codebase_version_file));
[144]	381	$this->setParam(array('codebase_version' => $codebase_version));
[136]	382	header('X-Codebase-Version: ' . $codebase_version);
	383	}
[42]	384
[1]	385	$this->running = true;
	386	}
[42]	387
[1]	388	/**
	389	* Stop running this application.
	390	*
	391	* @access public
	392	* @author Quinn Comendant <quinn@strangecode.com>
	393	* @since 17 Jul 2005 17:20:18
	394	*/
	395	function stop()
	396	{
	397	session_write_close();
	398	restore_include_path();
	399	$this->running = false;
[172]	400	$num_queries = 0;
[103]	401	if (true === $this->getParam('enable_db')) {
[172]	402	$num_queries = $this->db->numQueries();
[103]	403	$this->db->close();
	404	}
[172]	405	$this->timer->stop('_app');
[202]	406	$this->logMsg(sprintf('Script ended gracefully. Execution time: %s. Number of db queries: %s.', $this->timer->getTime('_app'), $num_queries), LOG_DEBUG, __FILE__, __LINE__);
[1]	407	}
[42]	408
	409
[1]	410	/**
[84]	411	* Add a message to the session, which is printed in the header.
[1]	412	* Just a simple way to print messages to the user.
	413	*
	414	* @access public
	415	*
	416	* @param string $message The text description of the message.
	417	* @param int $type The type of message: MSG_NOTICE,
	418	* MSG_SUCCESS, MSG_WARNING, or MSG_ERR.
	419	* @param string $file __FILE__.
	420	* @param string $line __LINE__.
	421	*/
	422	function raiseMsg($message, $type=MSG_NOTICE, $file=null, $line=null)
	423	{
[32]	424	$message = trim($message);
[1]	425
[203]	426	if (!$this->running) {
	427	$this->logMsg(sprintf('Canceled method call %s, application not running.', __FUNCTION__), LOG_NOTICE, __FILE__, __LINE__);
[1]	428	return false;
	429	}
[42]	430
[203]	431	if ('' == trim($message)) {
	432	$this->logMsg(sprintf('Raised message is an empty string.', __FUNCTION__), LOG_NOTICE, __FILE__, __LINE__);
	433	return false;
	434	}
[406]	435
	436	// Avoid duplicate full-stops..
	437	$message = trim(preg_replace('/\.{2}$/', '.', $message));
[203]	438
[37]	439	// Save message in session under unique key to avoid duplicate messages.
[177]	440	$msg_id = md5($type . $message);
	441	if (!isset($_SESSION['_app'][$this->_ns]['messages'][$msg_id])) {
	442	$_SESSION['_app'][$this->_ns]['messages'][$msg_id] = array(
	443	'type' => $type,
	444	'message' => $message,
	445	'file' => $file,
	446	'line' => $line,
	447	'count' => (isset($_SESSION['_app'][$this->_ns]['messages'][$msg_id]['count']) ? (1 + $_SESSION['_app'][$this->_ns]['messages'][$msg_id]['count']) : 1)
	448	);
	449	}
[42]	450
[1]	451	if (!in_array($type, array(MSG_NOTICE, MSG_SUCCESS, MSG_WARNING, MSG_ERR))) {
[136]	452	$this->logMsg(sprintf('Invalid MSG_* type: %s', $type), LOG_NOTICE, __FILE__, __LINE__);
[1]	453	}
	454	}
[46]	455
	456	/**
	457	* Returns an array of the raised messages.
	458	*
	459	* @access public
[334]	460	* @return array List of messages in FIFO order.
[46]	461	* @author Quinn Comendant <quinn@strangecode.com>
	462	* @since 21 Dec 2005 13:09:20
	463	*/
	464	function getRaisedMessages()
	465	{
[136]	466	if (!$this->running) {
	467	$this->logMsg(sprintf('Canceled method call %s, application not running.', __FUNCTION__), LOG_NOTICE, __FILE__, __LINE__);
	468	return false;
[46]	469	}
[42]	470
[154]	471	return isset($_SESSION['_app'][$this->_ns]['messages']) ? $_SESSION['_app'][$this->_ns]['messages'] : array();
[46]	472	}
	473
[1]	474	/**
[46]	475	* Resets the message list.
	476	*
	477	* @access public
	478	* @author Quinn Comendant <quinn@strangecode.com>
	479	* @since 21 Dec 2005 13:21:54
	480	*/
	481	function clearRaisedMessages()
	482	{
[136]	483	if (!$this->running) {
	484	$this->logMsg(sprintf('Canceled method call %s, application not running.', __FUNCTION__), LOG_NOTICE, __FILE__, __LINE__);
[46]	485	return false;
	486	}
	487
[154]	488	$_SESSION['_app'][$this->_ns]['messages'] = array();
[46]	489	}
	490
	491	/**
[1]	492	* Prints the HTML for displaying raised messages.
	493	*
	494	* @access public
	495	* @author Quinn Comendant <quinn@strangecode.com>
	496	* @since 15 Jul 2005 01:39:14
	497	*/
	498	function printRaisedMessages()
	499	{
[136]	500	if (!$this->running) {
	501	$this->logMsg(sprintf('Canceled method call %s, application not running.', __FUNCTION__), LOG_NOTICE, __FILE__, __LINE__);
[1]	502	return false;
	503	}
[136]	504
	505	$messages = $this->getRaisedMessages();
[167]	506	if (!empty($messages)) {
[163]	507	?><div id="sc-msg" class="sc-msg"><?php
[167]	508	foreach ($messages as $m) {
	509	if (error_reporting() > 0 && $this->getParam('display_errors') && isset($m['file']) && isset($m['line'])) {
	510	echo "\n<!-- [" . $m['file'] . ' : ' . $m['line'] . '] -->';
	511	}
	512	switch ($m['type']) {
	513	case MSG_ERR:
	514	echo '<div class="sc-msg-error">' . $m['message'] . '</div>';
	515	break;
[42]	516
[167]	517	case MSG_WARNING:
	518	echo '<div class="sc-msg-warning">' . $m['message'] . '</div>';
	519	break;
[42]	520
[167]	521	case MSG_SUCCESS:
	522	echo '<div class="sc-msg-success">' . $m['message'] . '</div>';
	523	break;
[42]	524
[167]	525	case MSG_NOTICE:
	526	default:
	527	echo '<div class="sc-msg-notice">' . $m['message'] . '</div>';
	528	break;
[42]	529
[167]	530	}
[1]	531	}
	532	?></div><?php
	533	}
[136]	534	$this->clearRaisedMessages();
[1]	535	}
[42]	536
[1]	537	/**
[44]	538	* Logs messages to defined channels: file, email, sms, and screen. Repeated messages are
[390]	539	* not repeated but printed once with count. Log events that match a sendable channel (email or SMS)
	540	* are sent once per 'log_multiple_timeout' setting (to avoid a flood of error emails).
[1]	541	*
	542	* @access public
	543	* @param string $message The text description of the message.
	544	* @param int $priority The type of message priority (in descending order):
[390]	545	* LOG_EMERG 0 system is unusable
	546	* LOG_ALERT 1 action must be taken immediately
	547	* LOG_CRIT 2 critical conditions
	548	* LOG_ERR 3 error conditions
	549	* LOG_WARNING 4 warning conditions
	550	* LOG_NOTICE 5 normal, but significant, condition
	551	* LOG_INFO 6 informational message
	552	* LOG_DEBUG 7 debug-level message
[1]	553	* @param string $file The file where the log event occurs.
	554	* @param string $line The line of the file where the log event occurs.
	555	*/
	556	function logMsg($message, $priority=LOG_INFO, $file=null, $line=null)
	557	{
[44]	558	static $previous_events = array();
	559
[1]	560	// If priority is not specified, assume the worst.
[136]	561	if (!$this->logPriorityToString($priority)) {
	562	$this->logMsg(sprintf('Log priority %s not defined. (Message: %s)', $priority, $message), LOG_EMERG, $file, $line);
[1]	563	$priority = LOG_EMERG;
	564	}
[42]	565
[15]	566	// If log file is not specified, don't log to a file.
[136]	567	if (!$this->getParam('log_directory') \|\| !$this->getParam('log_filename') \|\| !is_dir($this->getParam('log_directory')) \|\| !is_writable($this->getParam('log_directory'))) {
	568	$this->setParam(array('log_file_priority' => false));
	569	// We must use trigger_error to report this problem rather than calling $app->logMsg, which might lead to an infinite loop.
	570	trigger_error(sprintf('Codebase error: log directory (%s) not found or writable.', $this->getParam('log_directory')), E_USER_NOTICE);
[1]	571	}
[390]	572
	573	// Before we get any further, let's see if ANY log events are configured to be reported.
	574	if ((false === $this->getParam('log_file_priority') \|\| $priority > $this->getParam('log_file_priority'))
	575	&& (false === $this->getParam('log_email_priority') \|\| $priority > $this->getParam('log_email_priority'))
	576	&& (false === $this->getParam('log_sms_priority') \|\| $priority > $this->getParam('log_sms_priority'))
	577	&& (false === $this->getParam('log_screen_priority') \|\| $priority > $this->getParam('log_screen_priority'))) {
	578	// This event would not be recorded, skip it entirely.
	579	return false;
	580	}
[42]	581
[1]	582	// Make sure to log in the system's locale.
	583	$locale = setlocale(LC_TIME, 0);
	584	setlocale(LC_TIME, 'C');
[42]	585
[44]	586	// Strip HTML tags except any with more than 7 characters because that's probably not a HTML tag, e.g. <email@address.com>.
	587	preg_match_all('/(<[^>\s]{7,})[^>]*>/', $message, $strip_tags_allow);
	588	$message = strip_tags(preg_replace('/\s+/', ' ', $message), (!empty($strip_tags_allow[1]) ? join('> ', $strip_tags_allow[1]) . '>' : null));
	589
	590	// Store this event under a unique key, counting each time it occurs so that it only gets reported a limited number of times.
	591	$msg_id = md5($message . $priority . $file . $line);
[406]	592	if ($this->getParam('log_ignore_repeated_events') && isset($previous_events[$msg_id])) {
[44]	593	$previous_events[$msg_id]++;
	594	if ($previous_events[$msg_id] == 2) {
[136]	595	$this->logMsg(sprintf('%s (Event repeated %s or more times)', $message, $previous_events[$msg_id]), $priority, $file, $line);
[44]	596	}
	597	return false;
	598	} else {
	599	$previous_events[$msg_id] = 1;
	600	}
[341]	601
[390]	602	// For email and SMS notification types use "lock" files to prevent sending email and SMS notices ad infinitum.
	603	if ((false !== $this->getParam('log_email_priority') && $priority <= $this->getParam('log_email_priority'))
	604	\|\| (false !== $this->getParam('log_sms_priority') && $priority <= $this->getParam('log_sms_priority'))) {
	605	// This event will generate a "send" notification. Prepare lock file.
	606	$site_hash = md5(empty($_SERVER['SERVER_NAME']) ? $_SERVER['SCRIPT_FILENAME'] : $_SERVER['SERVER_NAME']);
	607	$lock_dir = $this->getParam('tmp_dir') . "/codebase_msgs_$site_hash/";
	608	// Just use the file and line for the msg_id to limit the number of possible messages
	609	// (the message string itself shan't be used as it may contain innumerable combinations).
	610	$lock_file = $lock_dir . md5($file . ':' . $line);
	611	if (!is_dir($lock_dir)) {
	612	mkdir($lock_dir);
	613	}
	614	$send_notifications = true;
	615	if (is_file($lock_file)) {
	616	$msg_last_sent = filectime($lock_file);
	617	// Has this message been sent more recently than the timeout?
	618	if ((time() - $msg_last_sent) <= $this->getParam('log_multiple_timeout')) {
	619	// This message was already sent recently.
	620	$send_notifications = false;
	621	} else {
	622	// Timeout has expired; send notifications again and reset timeout.
	623	touch($lock_file);
	624	}
[341]	625	} else {
[390]	626	touch($lock_file);
[341]	627	}
	628	}
[44]	629
[1]	630	// Data to be stored for a log event.
[44]	631	$event = array(
	632	'date' => date('Y-m-d H:i:s'),
	633	'remote ip' => getRemoteAddr(),
[247]	634	'pid' => (mb_substr(PHP_OS, 0, 3) != 'WIN' ? posix_getpid() : ''),
[136]	635	'type' => $this->logPriorityToString($priority),
[44]	636	'file:line' => "$file : $line",
[247]	637	'url' => mb_substr(isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : '', 0, 128),
[44]	638	'message' => $message
	639	);
[42]	640
[1]	641	// FILE ACTION
[390]	642	if (false !== $this->getParam('log_file_priority') && $priority <= $this->getParam('log_file_priority')) {
[44]	643	$event_str = '[' . join('] [', $event) . ']';
[247]	644	error_log(mb_substr($event_str, 0, 1024) . "\n", 3, $this->getParam('log_directory') . '/' . $this->getParam('log_filename'));
[1]	645	}
[42]	646
[390]	647	// EMAIL ACTION
	648	if (false !== $this->getParam('log_email_priority') && $priority <= $this->getParam('log_email_priority') && $send_notifications) {
	649	$subject = sprintf('[%s %s] %s', getenv('HTTP_HOST'), $event['type'], mb_substr($message, 0, 64));
	650	$email_msg = sprintf("A %s log event occurred on %s\n\n", $event['type'], getenv('HTTP_HOST'));
	651	$headers = 'From: ' . $this->getParam('site_email');
	652	foreach ($event as $k=>$v) {
	653	$email_msg .= sprintf("%-11s%s\n", $k, $v);
[1]	654	}
[390]	655	mb_send_mail($this->getParam('log_to_email_address'), $subject, $email_msg, $headers);
[1]	656	}
[390]	657
	658	// SMS ACTION
	659	if (false !== $this->getParam('log_sms_priority') && $priority <= $this->getParam('log_sms_priority') && $send_notifications) {
	660	$subject = sprintf('[%s %s]', getenv('HTTP_HOST'), $priority);
	661	$sms_msg = sprintf('%s [%s:%s]', mb_substr($event['message'], 0, 64), basename($file), $line);
	662	$headers = 'From: ' . $this->getParam('site_email');
	663	mb_send_mail($this->getParam('log_to_sms_address'), $subject, $sms_msg, $headers);
	664	}
[341]	665
[1]	666	// SCREEN ACTION
[390]	667	if (false !== $this->getParam('log_screen_priority') && $priority <= $this->getParam('log_screen_priority')) {
[189]	668	echo "[{$event['type']}] [{$event['message']}]\n";
[1]	669	}
[42]	670
[1]	671	// Restore original locale.
	672	setlocale(LC_TIME, $locale);
[390]	673
	674	return true;
[1]	675	}
[42]	676
[1]	677	/**
	678	* Returns the string representation of a LOG_* integer constant.
	679	*
	680	* @param int $priority The LOG_* integer constant.
	681	*
	682	* @return The string representation of $priority.
	683	*/
[259]	684	function logPriorityToString($priority) {
[1]	685	$priorities = array(
	686	LOG_EMERG => 'emergency',
	687	LOG_ALERT => 'alert',
	688	LOG_CRIT => 'critical',
	689	LOG_ERR => 'error',
	690	LOG_WARNING => 'warning',
	691	LOG_NOTICE => 'notice',
	692	LOG_INFO => 'info',
	693	LOG_DEBUG => 'debug'
	694	);
	695	if (isset($priorities[$priority])) {
	696	return $priorities[$priority];
	697	} else {
	698	return false;
	699	}
	700	}
[42]	701
[1]	702	/**
[334]	703	* Forcefully set a query argument even if one currently exists in the request.
[136]	704	* Values in the _carry_queries array will be copied to URLs (via $app->url()) and
[20]	705	* to hidden input values (via printHiddenSession()).
	706	*
	707	* @access public
[282]	708	* @param mixed $query_key The key (or keys, as an array) of the query argument to save.
	709	* @param mixed $val The new value of the argument key.
	710	* @author Quinn Comendant <quinn@strangecode.com>
	711	* @since 13 Oct 2007 11:34:51
	712	*/
	713	function setQuery($query_key, $val)
	714	{
	715	if (!is_array($query_key)) {
	716	$query_key = array($query_key);
	717	}
	718	foreach ($query_key as $k) {
	719	// Set the value of the specified query argument into the _carry_queries array.
	720	$this->_carry_queries[$k] = $val;
	721	}
	722	}
	723
	724	/**
	725	* Specify which query arguments will be carried persistently between requests.
	726	* Values in the _carry_queries array will be copied to URLs (via $app->url()) and
	727	* to hidden input values (via printHiddenSession()).
	728	*
	729	* @access public
[259]	730	* @param mixed $query_key The key (or keys, as an array) of the query argument to save.
[170]	731	* @param mixed $default If the key is not available, set to this default value.
[20]	732	* @author Quinn Comendant <quinn@strangecode.com>
	733	* @since 14 Nov 2005 19:24:52
	734	*/
[170]	735	function carryQuery($query_key, $default=false)
[20]	736	{
[259]	737	if (!is_array($query_key)) {
	738	$query_key = array($query_key);
[20]	739	}
[259]	740	foreach ($query_key as $k) {
	741	// If not already set, and there is a non-empty value provided in the request...
	742	if (!isset($this->_carry_queries[$k]) && false !== getFormData($k, $default)) {
	743	// Copy the value of the specified query argument into the _carry_queries array.
	744	$this->_carry_queries[$k] = getFormData($k, $default);
[331]	745	$this->logMsg(sprintf('Carrying query: %s => %s', $k, truncate(getDump($this->_carry_queries[$k], true), 128, 'end')), LOG_DEBUG, __FILE__, __LINE__);
[259]	746	}
	747	}
[20]	748	}
[42]	749
[20]	750	/**
[259]	751	* dropQuery() is the opposite of carryQuery(). The specified value will not appear in
	752	* url()/ohref()/printHiddenSession() modified URLs unless explicitly written in.
[325]	753	*
[259]	754	* @access public
	755	* @param mixed $query_key The key (or keys, as an array) of the query argument to remove.
[407]	756	* @param bool $unset Remove any values set in the request matching the given $query_key.
[259]	757	* @author Quinn Comendant <quinn@strangecode.com>
	758	* @since 18 Jun 2007 20:57:29
	759	*/
[325]	760	function dropQuery($query_key, $unset=false)
[259]	761	{
	762	if (!is_array($query_key)) {
	763	$query_key = array($query_key);
	764	}
	765	foreach ($query_key as $k) {
[260]	766	if (isset($this->_carry_queries[$k])) {
[259]	767	// Remove the value of the specified query argument from the _carry_queries array.
[325]	768	$this->logMsg(sprintf('Dropping carried query: %s => %s', $k, $this->_carry_queries[$k]), LOG_DEBUG, __FILE__, __LINE__);
[260]	769	unset($this->_carry_queries[$k]);
[259]	770	}
[325]	771	if ($unset && isset($_REQUEST[$k])) {
	772	unset($_REQUEST[$k], $_GET[$k], $_POST[$k], $_COOKIE[$k]);
	773	}
[259]	774	}
	775	}
	776
	777	/**
[1]	778	* Outputs a fully qualified URL with a query of all the used (ie: not empty)
[42]	779	* keys and values, including optional queries. This allows mindless retention
[32]	780	* of query arguments across page requests. If cookies are not
[325]	781	* used, the session id will be propagated in the URL.
[1]	782	*
[32]	783	* @param string $url The initial url
	784	* @param mixed $carry_args Additional url arguments to carry in the query,
	785	* or FALSE to prevent carrying queries. Can be any of the following formats:
	786	* array('key1', key2', key3') <-- to save these keys if in the form data.
	787	* array('key1'=>'value', key2'='value') <-- to set keys to default values if not present in form data.
	788	* false <-- To not carry any queries. If URL already has queries those will be retained.
[1]	789	*
	790	* @param mixed $always_include_sid Always add the session id, even if using_trans_sid = true. This is required when
	791	* URL starts with http, since PHP using_trans_sid doesn't do those and also for
	792	* header('Location...') redirections.
	793	*
	794	* @return string url with attached queries and, if not using cookies, the session id
	795	*/
[32]	796	function url($url, $carry_args=null, $always_include_sid=false)
[1]	797	{
[136]	798	if (!$this->running) {
	799	$this->logMsg(sprintf('Canceled method call %s, application not running.', __FUNCTION__), LOG_NOTICE, __FILE__, __LINE__);
[1]	800	return false;
	801	}
[42]	802
[20]	803	// Get any provided query arguments to include in the final URL.
	804	// If FALSE is a provided here, DO NOT carry the queries.
[1]	805	$do_carry_queries = true;
	806	$one_time_carry_queries = array();
	807	if (!is_null($carry_args)) {
	808	if (is_array($carry_args) && !empty($carry_args)) {
	809	foreach ($carry_args as $key=>$arg) {
	810	// Get query from appropriate source.
	811	if (false === $arg) {
	812	$do_carry_queries = false;
	813	} else if (false !== getFormData($arg, false)) {
	814	$one_time_carry_queries[$arg] = getFormData($arg); // Set arg to form data if available.
	815	} else if (!is_numeric($key) && '' != $arg) {
	816	$one_time_carry_queries[$key] = getFormData($key, $arg); // Set to arg to default if specified (overwritten by form data).
	817	}
	818	}
	819	} else if (false !== getFormData($carry_args, false)) {
	820	$one_time_carry_queries[$carry_args] = getFormData($carry_args);
	821	} else if (false === $carry_args) {
	822	$do_carry_queries = false;
	823	}
	824	}
[42]	825
[1]	826	// Get the first delimiter that is needed in the url.
[247]	827	$delim = mb_strpos($url, '?') !== false ? ini_get('arg_separator.output') : '?';
[32]	828
[1]	829	$q = '';
	830	if ($do_carry_queries) {
[20]	831	// Join the global _carry_queries and local one_time_carry_queries.
[136]	832	$query_args = urlEncodeArray(array_merge($this->_carry_queries, $one_time_carry_queries));
[1]	833	foreach ($query_args as $key=>$val) {
	834	// Check value is set and value does not already exist in the url.
	835	if (!preg_match('/[?&]' . preg_quote($key) . '=/', $url)) {
	836	$q .= $delim . $key . '=' . $val;
	837	$delim = ini_get('arg_separator.output');
	838	}
	839	}
	840	}
[42]	841
[1]	842	// Include the necessary SID if the following is true:
	843	// - no cookie in http request OR cookies disabled in App
	844	// - sessions are enabled
	845	// - the link stays on our site
[334]	846	// - transparent SID propagation with session.use_trans_sid is not being used OR url begins with protocol (using_trans_sid has no effect here)
[42]	847	// OR
[1]	848	// - we must include the SID because we say so (it's used in a context where cookies will not be effective, ie. moving from http to https)
	849	// AND
	850	// - the SID is not already in the query.
	851	if (
	852	(
	853	(
	854	(
[42]	855	!isset($_COOKIE[session_name()])
[136]	856	\|\| !$this->getParam('session_use_cookies')
[42]	857	)
[242]	858	&& $this->getParam('session_use_trans_sid')
[136]	859	&& $this->getParam('enable_session')
[42]	860	&& isMyDomain($url)
[242]	861	&& (
[20]	862	!ini_get('session.use_trans_sid')
[1]	863	\|\| preg_match('!^(http\|https)://!i', $url)
	864	)
[42]	865	)
[1]	866	\|\| $always_include_sid
	867	)
	868	&& !preg_match('/[?&]' . preg_quote(session_name()) . '=/', $url)
	869	) {
	870	$url .= $q . $delim . session_name() . '=' . session_id();
	871	return $url;
	872	} else {
	873	$url .= $q;
	874	return $url;
	875	}
	876	}
[32]	877
	878	/**
[136]	879	* Returns a HTML-friendly URL processed with $app->url and & replaced with &
[32]	880	*
	881	* @access public
	882	* @param string $url Input URL to parse.
[334]	883	* @return string URL passed through $app->url() and then & turned to $amp;.
[32]	884	* @author Quinn Comendant <quinn@strangecode.com>
	885	* @since 09 Dec 2005 17:58:45
	886	*/
	887	function oHREF($url, $carry_args=null, $always_include_sid=false)
	888	{
[136]	889	$url = $this->url($url, $carry_args, $always_include_sid);
[42]	890
[32]	891	// Replace any & not followed by an html or unicode entity with it's & equivalent.
	892	$url = preg_replace('/&(?![\w\d#]{1,10};)/', '&', $url);
[42]	893
[32]	894	return $url;
	895	}
[42]	896
[1]	897	/**
	898	* Prints a hidden form element with the PHPSESSID when cookies are not used, as well
[42]	899	* as hidden form elements for GET_VARS that might be in use.
[1]	900	*
	901	* @param mixed $carry_args Additional url arguments to carry in the query,
	902	* or FALSE to prevent carrying queries. Can be any of the following formats:
[32]	903	* array('key1', key2', key3') <-- to save these keys if in the form data.
	904	* array('key1'=>'value', key2'='value') <-- to set keys to default values if not present in form data.
	905	* false <-- To not carry any queries. If URL already has queries those will be retained.
[1]	906	*/
	907	function printHiddenSession($carry_args=null)
[32]	908	{
[136]	909	if (!$this->running) {
	910	$this->logMsg(sprintf('Canceled method call %s, application not running.', __FUNCTION__), LOG_NOTICE, __FILE__, __LINE__);
[1]	911	return false;
	912	}
[42]	913
[20]	914	// Get any provided query arguments to include in the final hidden form data.
	915	// If FALSE is a provided here, DO NOT carry the queries.
[1]	916	$do_carry_queries = true;
	917	$one_time_carry_queries = array();
	918	if (!is_null($carry_args)) {
	919	if (is_array($carry_args) && !empty($carry_args)) {
	920	foreach ($carry_args as $key=>$arg) {
	921	// Get query from appropriate source.
	922	if (false === $arg) {
	923	$do_carry_queries = false;
	924	} else if (false !== getFormData($arg, false)) {
	925	$one_time_carry_queries[$arg] = getFormData($arg); // Set arg to form data if available.
	926	} else if (!is_numeric($key) && '' != $arg) {
	927	$one_time_carry_queries[$key] = getFormData($key, $arg); // Set to arg to default if specified (overwritten by form data).
	928	}
	929	}
	930	} else if (false !== getFormData($carry_args, false)) {
	931	$one_time_carry_queries[$carry_args] = getFormData($carry_args);
	932	} else if (false === $carry_args) {
	933	$do_carry_queries = false;
	934	}
	935	}
[42]	936
[313]	937	// For each existing request value, we create a hidden input to carry it through a form.
[1]	938	if ($do_carry_queries) {
[20]	939	// Join the global _carry_queries and local one_time_carry_queries.
	940	// urlencode is not used here, not for form data!
[136]	941	$query_args = array_merge($this->_carry_queries, $one_time_carry_queries);
[1]	942	foreach ($query_args as $key=>$val) {
[136]	943	printf('<input type="hidden" name="%s" value="%s" />', $key, $val);
[1]	944	}
	945	}
[42]	946
[1]	947	// Include the SID if cookies are disabled.
[20]	948	if (!isset($_COOKIE[session_name()]) && !ini_get('session.use_trans_sid')) {
[136]	949	printf('<input type="hidden" name="%s" value="%s" />', session_name(), session_id());
[1]	950	}
	951	}
[42]	952
[1]	953	/**
	954	* Uses an http header to redirect the client to the given $url. If sessions are not used
	955	* and the session is not already defined in the given $url, the SID is appended as a URI query.
	956	* As with all header generating functions, make sure this is called before any other output.
	957	*
	958	* @param string $url The URL the client will be redirected to.
	959	* @param mixed $carry_args Additional url arguments to carry in the query,
	960	* or FALSE to prevent carrying queries. Can be any of the following formats:
	961	* -array('key1', key2', key3') <-- to save these keys if in the form data.
[136]	962	* -array('key1' => 'value', key2' => 'value') <-- to set keys to default values if not present in form data.
[1]	963	* -false <-- To not carry any queries. If URL already has queries those will be retained.
	964	* @param bool $always_include_sid Force session id to be added to Location header.
	965	*/
	966	function dieURL($url, $carry_args=null, $always_include_sid=false)
	967	{
[136]	968	if (!$this->running) {
	969	$this->logMsg(sprintf('Canceled method call %s, application not running.', __FUNCTION__), LOG_NOTICE, __FILE__, __LINE__);
[1]	970	return false;
	971	}
[42]	972
[1]	973	if ('' == $url) {
	974	// If URL is not specified, use the redirect_home_url.
[136]	975	$url = $this->getParam('redirect_home_url');
[1]	976	}
[42]	977
[1]	978	if (preg_match('!^/!', $url)) {
	979	// If relative URL is given, prepend correct local hostname.
[22]	980	$scheme = 'on' == getenv('HTTPS') ? 'https' : 'http';
	981	$host = getenv('HTTP_HOST');
	982	$url = sprintf('%s://%s%s', $scheme, $host, $url);
[1]	983	}
[22]	984
[136]	985	$url = $this->url($url, $carry_args, $always_include_sid);
[42]	986
[202]	987	// Should we send a "303 See Other" header here instead of relying on the 302 sent automatically by PHP?
[1]	988	header(sprintf('Location: %s', $url));
[136]	989	$this->logMsg(sprintf('dieURL: %s', $url), LOG_DEBUG, __FILE__, __LINE__);
[42]	990
[202]	991	// End application.
[1]	992	// Recommended, although I'm not sure it's necessary: http://cn2.php.net/session_write_close
[136]	993	$this->stop();
[1]	994	die;
	995	}
[42]	996
[84]	997	/*
[136]	998	* Redirects a user by calling $app->dieURL(). It will use:
[84]	999	* 1. the stored boomerang URL, it it exists
	1000	* 2. a specified $default_url, it it exists
	1001	* 3. the referring URL, it it exists.
	1002	* 4. redirect_home_url configuration variable.
	1003	*
	1004	* @access public
	1005	* @param string $id Identifier for this script.
[136]	1006	* @param mixed $carry_args Additional arguments to carry in the URL automatically (see $app->oHREF()).
[84]	1007	* @param string $default_url A default URL if there is not a valid specified boomerang URL.
[159]	1008	* @param bool $queryless_referrer_comparison Exclude the URL query from the refererIsMe() comparison.
[84]	1009	* @return bool False if the session is not running. No return otherwise.
	1010	* @author Quinn Comendant <quinn@strangecode.com>
	1011	* @since 31 Mar 2006 19:17:00
	1012	*/
[159]	1013	function dieBoomerangURL($id=null, $carry_args=null, $default_url=null, $queryless_referrer_comparison=false)
[1]	1014	{
[136]	1015	if (!$this->running) {
	1016	$this->logMsg(sprintf('Canceled method call %s, application not running.', __FUNCTION__), LOG_NOTICE, __FILE__, __LINE__);
[1]	1017	return false;
	1018	}
[42]	1019
[1]	1020	// Get URL from stored boomerang. Allow non specific URL if ID not valid.
[136]	1021	if ($this->validBoomerangURL($id, true)) {
[154]	1022	if (isset($id) && isset($_SESSION['_app'][$this->_ns]['boomerang']['url'][$id])) {
	1023	$url = $_SESSION['_app'][$this->_ns]['boomerang']['url'][$id];
[136]	1024	$this->logMsg(sprintf('dieBoomerangURL(%s) found: %s', $id, $url), LOG_DEBUG, __FILE__, __LINE__);
[1]	1025	} else {
[154]	1026	$url = end($_SESSION['_app'][$this->_ns]['boomerang']['url']);
[136]	1027	$this->logMsg(sprintf('dieBoomerangURL(%s) using: %s', $id, $url), LOG_DEBUG, __FILE__, __LINE__);
[1]	1028	}
[22]	1029	// Delete stored boomerang.
[136]	1030	$this->deleteBoomerangURL($id);
[84]	1031	} else if (isset($default_url)) {
	1032	$url = $default_url;
[159]	1033	} else if (!refererIsMe(true === $queryless_referrer_comparison)) {
[1]	1034	// Ensure that the redirecting page is not also the referrer.
	1035	$url = getenv('HTTP_REFERER');
[136]	1036	$this->logMsg(sprintf('dieBoomerangURL(%s) using referrer: %s', $id, $url), LOG_DEBUG, __FILE__, __LINE__);
[1]	1037	} else {
[22]	1038	// If URL is not specified, use the redirect_home_url.
[136]	1039	$url = $this->getParam('redirect_home_url');
[203]	1040	$this->logMsg(sprintf('dieBoomerangURL(%s) using redirect_home_url: %s', $id, $url), LOG_DEBUG, __FILE__, __LINE__);
[1]	1041	}
[42]	1042
[84]	1043	// A redirection will never happen immediately twice.
[1]	1044	// Set the time so ensure this doesn't happen.
[154]	1045	$_SESSION['_app'][$this->_ns]['boomerang']['time'] = time();
[136]	1046	$this->dieURL($url, $carry_args);
[1]	1047	}
[42]	1048
[1]	1049	/**
[136]	1050	* Set the URL to return to when $app->dieBoomerangURL() is called.
[1]	1051	*
	1052	* @param string $url A fully validated URL.
	1053	* @param bool $id An identification tag for this url.
	1054	* FIXME: url garbage collection?
	1055	*/
	1056	function setBoomerangURL($url=null, $id=null)
	1057	{
[136]	1058	if (!$this->running) {
	1059	$this->logMsg(sprintf('Canceled method call %s, application not running.', __FUNCTION__), LOG_NOTICE, __FILE__, __LINE__);
[1]	1060	return false;
	1061	}
[84]	1062	// A redirection will never happen immediately after setting the boomerangURL.
[136]	1063	// Set the time so ensure this doesn't happen. See $app->validBoomerangURL for more.
[359]	1064	/// FIXME: Why isn't the time set here under setBoomerangURL() and only under dieBoomerangURL()?
[42]	1065
[22]	1066	if ('' != $url && is_string($url)) {
[242]	1067	// Delete any boomerang request keys in the query string (along with any trailing delimiters after the deletion).
	1068	$url = preg_replace(array('/([&?])boomerang=\w+[&?]?/', '/[&?]$/'), array('$1', ''), $url);
[42]	1069
[154]	1070	if (isset($_SESSION['_app'][$this->_ns]['boomerang']['url']) && is_array($_SESSION['_app'][$this->_ns]['boomerang']['url']) && !empty($_SESSION['_app'][$this->_ns]['boomerang']['url'])) {
[1]	1071	// If the URL currently exists in the boomerang array, delete.
[154]	1072	while ($existing_key = array_search($url, $_SESSION['_app'][$this->_ns]['boomerang']['url'])) {
	1073	unset($_SESSION['_app'][$this->_ns]['boomerang']['url'][$existing_key]);
[1]	1074	}
	1075	}
[42]	1076
[1]	1077	if (isset($id)) {
[154]	1078	$_SESSION['_app'][$this->_ns]['boomerang']['url'][$id] = $url;
[1]	1079	} else {
[154]	1080	$_SESSION['_app'][$this->_ns]['boomerang']['url'][] = $url;
[1]	1081	}
[136]	1082	$this->logMsg(sprintf('setBoomerangURL(%s): %s', $id, $url), LOG_DEBUG, __FILE__, __LINE__);
[1]	1083	return true;
	1084	} else {
[136]	1085	$this->logMsg(sprintf('setBoomerangURL(%s) is empty!', $id, $url), LOG_NOTICE, __FILE__, __LINE__);
[1]	1086	return false;
	1087	}
	1088	}
[42]	1089
[1]	1090	/**
[333]	1091	* Return the URL set for the specified $id, or an empty string if one isn't set.
[1]	1092	*
	1093	* @param string $id An identification tag for this url.
	1094	*/
	1095	function getBoomerangURL($id=null)
	1096	{
[136]	1097	if (!$this->running) {
	1098	$this->logMsg(sprintf('Canceled method call %s, application not running.', __FUNCTION__), LOG_NOTICE, __FILE__, __LINE__);
[1]	1099	return false;
	1100	}
[42]	1101
[1]	1102	if (isset($id)) {
[154]	1103	if (isset($_SESSION['_app'][$this->_ns]['boomerang']['url'][$id])) {
	1104	return $_SESSION['_app'][$this->_ns]['boomerang']['url'][$id];
[1]	1105	} else {
	1106	return '';
	1107	}
[154]	1108	} else if (is_array($_SESSION['_app'][$this->_ns]['boomerang']['url'])) {
	1109	return end($_SESSION['_app'][$this->_ns]['boomerang']['url']);
[1]	1110	} else {
	1111	return false;
	1112	}
	1113	}
[42]	1114
[1]	1115	/**
	1116	* Delete the URL set for the specified $id.
	1117	*
	1118	* @param string $id An identification tag for this url.
	1119	*/
	1120	function deleteBoomerangURL($id=null)
	1121	{
[136]	1122	if (!$this->running) {
	1123	$this->logMsg(sprintf('Canceled method call %s, application not running.', __FUNCTION__), LOG_NOTICE, __FILE__, __LINE__);
[1]	1124	return false;
	1125	}
[42]	1126
[136]	1127	$this->logMsg(sprintf('deleteBoomerangURL(%s): %s', $id, $this->getBoomerangURL($id)), LOG_DEBUG, __FILE__, __LINE__);
[22]	1128
[154]	1129	if (isset($id) && isset($_SESSION['_app'][$this->_ns]['boomerang']['url'][$id])) {
	1130	unset($_SESSION['_app'][$this->_ns]['boomerang']['url'][$id]);
	1131	} else if (is_array($_SESSION['_app'][$this->_ns]['boomerang']['url'])) {
	1132	array_pop($_SESSION['_app'][$this->_ns]['boomerang']['url']);
[1]	1133	}
	1134	}
[42]	1135
[1]	1136	/**
[103]	1137	* Check if a valid boomerang URL value has been set. A boomerang URL is considered
	1138	* valid if: 1) it is not empty, 2) it is not the current URL, and 3) has not been accessed within n seconds.
[1]	1139	*
[103]	1140	* @return bool True if it is set and valid, false otherwise.
[1]	1141	*/
	1142	function validBoomerangURL($id=null, $use_nonspecificboomerang=false)
	1143	{
[136]	1144	if (!$this->running) {
	1145	$this->logMsg(sprintf('Canceled method call %s, application not running.', __FUNCTION__), LOG_NOTICE, __FILE__, __LINE__);
[1]	1146	return false;
	1147	}
[42]	1148
[154]	1149	if (!isset($_SESSION['_app'][$this->_ns]['boomerang']['url'])) {
[136]	1150	$this->logMsg(sprintf('validBoomerangURL(%s) no boomerang URL set.', $id), LOG_DEBUG, __FILE__, __LINE__);
[1]	1151	return false;
	1152	}
[42]	1153
[334]	1154	// Time is the time stamp of a boomerangURL redirection, or setting of a boomerangURL.
[1]	1155	// a boomerang redirection will always occur at least several seconds after the last boomerang redirect
	1156	// or a boomerang being set.
[154]	1157	$boomerang_time = isset($_SESSION['_app'][$this->_ns]['boomerang']['time']) ? $_SESSION['_app'][$this->_ns]['boomerang']['time'] : 0;
[42]	1158
[22]	1159	$url = '';
[154]	1160	if (isset($id) && isset($_SESSION['_app'][$this->_ns]['boomerang']['url'][$id])) {
	1161	$url = $_SESSION['_app'][$this->_ns]['boomerang']['url'][$id];
[1]	1162	} else if (!isset($id) \|\| $use_nonspecificboomerang) {
	1163	// Use non specific boomerang if available.
[154]	1164	$url = end($_SESSION['_app'][$this->_ns]['boomerang']['url']);
[1]	1165	}
[42]	1166
[136]	1167	$this->logMsg(sprintf('validBoomerangURL(%s) testing: %s', $id, $url), LOG_DEBUG, __FILE__, __LINE__);
[22]	1168
	1169	if ('' == $url) {
[136]	1170	$this->logMsg(sprintf('validBoomerangURL(%s) not valid, empty!', $id), LOG_DEBUG, __FILE__, __LINE__);
[1]	1171	return false;
	1172	}
	1173	if ($url == absoluteMe()) {
	1174	// The URL we are directing to is the current page.
[136]	1175	$this->logMsg(sprintf('validBoomerangURL(%s) not valid, same as absoluteMe: %s', $id, $url), LOG_DEBUG, __FILE__, __LINE__);
[1]	1176	return false;
	1177	}
	1178	if ($boomerang_time >= (time() - 2)) {
[159]	1179	// Last boomerang direction was less than 2 seconds ago.
	1180	$this->logMsg(sprintf('validBoomerangURL(%s) not valid, boomerang_time too short: %s seconds', $id, time() - $boomerang_time), LOG_DEBUG, __FILE__, __LINE__);
[1]	1181	return false;
	1182	}
[42]	1183
[136]	1184	$this->logMsg(sprintf('validBoomerangURL(%s) is valid: %s', $id, $url), LOG_DEBUG, __FILE__, __LINE__);
[1]	1185	return true;
	1186	}
	1187
	1188	/**
	1189	* Force the user to connect via https (port 443) by redirecting them to
	1190	* the same page but with https.
	1191	*/
	1192	function sslOn()
	1193	{
[38]	1194	if (function_exists('apache_get_modules')) {
[42]	1195	$modules = apache_get_modules();
[38]	1196	} else {
	1197	// It's safe to assume we have mod_ssl if we can't determine otherwise.
	1198	$modules = array('mod_ssl');
	1199	}
[42]	1200
[136]	1201	if ('' == getenv('HTTPS') && $this->getParam('ssl_enabled') && in_array('mod_ssl', $modules)) {
	1202	$this->raiseMsg(sprintf(_("Secure SSL connection made to %s"), $this->getParam('ssl_domain')), MSG_NOTICE, __FILE__, __LINE__);
[1]	1203	// Always append session because some browsers do not send cookie when crossing to SSL URL.
[136]	1204	$this->dieURL('https://' . $this->getParam('ssl_domain') . getenv('REQUEST_URI'), null, true);
[1]	1205	}
	1206	}
[42]	1207
	1208
[1]	1209	/**
	1210	* to enforce the user to connect via http (port 80) by redirecting them to
	1211	* a http version of the current url.
	1212	*/
	1213	function sslOff()
	1214	{
[53]	1215	if ('' != getenv('HTTPS')) {
[1]	1216	$this->dieURL('http://' . getenv('HTTP_HOST') . getenv('REQUEST_URI'), null, true);
	1217	}
	1218	}
	1219
[42]	1220
[1]	1221	} // End.
	1222
[341]	1223	?>

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