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source: trunk/lib/App.inc.php @ 433

Last change on this file since 433 was 433, checked in by anonymous, 11 years ago
Disable sessions automatically for CLI scripts.
File size: 53.6 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
[433]	317	// Skip sessions if disabled or automatically skip if run in a CLI script.
	318	if (true === $this->getParam('enable_session') && !defined('_CLI')) {
[42]	319
[373]	320	// Session parameters.
	321	ini_set('session.gc_probability', 1);
	322	ini_set('session.gc_divisor', 1000);
	323	ini_set('session.gc_maxlifetime', 43200); // 12 hours
	324	ini_set('session.use_cookies', $this->getParam('session_use_cookies'));
	325	ini_set('session.use_trans_sid', false);
	326	ini_set('session.entropy_file', '/dev/urandom');
	327	ini_set('session.entropy_length', '512');
[410]	328	ini_set('session.cookie_httponly', true);
[373]	329	session_name($this->getParam('session_name'));
	330
[1]	331	if (true === $this->getParam('enable_db_session_handler') && true === $this->getParam('enable_db')) {
	332	// Database session handling.
	333	require_once dirname(__FILE__) . '/DBSessionHandler.inc.php';
	334	$db_save_handler = new DBSessionHandler($this->db, array(
	335	'db_table' => 'session_tbl',
	336	'create_table' => $this->getParam('db_create_tables'),
	337	));
	338	}
[42]	339
[22]	340	// Start the session.
[1]	341	session_start();
[42]	342
[154]	343	if (!isset($_SESSION['_app'][$this->_ns])) {
[22]	344	// Access session data using: $_SESSION['...'].
	345	// Initialize here _after_ session has started.
[154]	346	$_SESSION['_app'][$this->_ns] = array(
[22]	347	'messages' => array(),
	348	'boomerang' => array('url'),
	349	);
	350	}
[1]	351	}
[42]	352
	353
[1]	354	/**
	355	* 3. Misc setup.
	356	*/
	357
	358	// Script URI will be something like http://host.name.tld (no ending slash)
	359	// and is used whenever a URL need be used to the current site.
	360	// Not available on cli scripts obviously.
[41]	361	if (isset($_SERVER['HTTP_HOST']) && '' != $_SERVER['HTTP_HOST'] && '' == $this->getParam('site_url')) {
[14]	362	$this->setParam(array('site_url' => sprintf('%s://%s', ('on' == getenv('HTTPS') ? 'https' : 'http'), getenv('HTTP_HOST'))));
[1]	363	}
[390]	364
	365	// In case site_email isn't set, use something halfway presentable.
	366	if (isset($_SERVER['HTTP_HOST']) && '' != $_SERVER['HTTP_HOST'] && '' == $this->getParam('site_email')) {
	367	$this->setParam(array('site_email' => sprintf('no-reply@%s', getenv('HTTP_HOST'))));
	368	}
[1]	369
	370	// A key for calculating simple cryptographic signatures.
	371	if (isset($_SERVER['SIGNING_KEY'])) {
	372	$this->setParam(array('signing_key' => $_SERVER['SIGNING_KEY']));
	373	}
[42]	374
[1]	375	// Character set. This should also be printed in the html header template.
	376	header('Content-type: text/html; charset=' . $this->getParam('character_set'));
[136]	377
	378	// Set the version of the codebase we're using.
	379	$codebase_version_file = dirname(__FILE__) . '/../docs/version.txt';
	380	if (is_readable($codebase_version_file)) {
	381	$codebase_version = trim(file_get_contents($codebase_version_file));
[144]	382	$this->setParam(array('codebase_version' => $codebase_version));
[136]	383	header('X-Codebase-Version: ' . $codebase_version);
	384	}
[42]	385
[1]	386	$this->running = true;
	387	}
[42]	388
[1]	389	/**
	390	* Stop running this application.
	391	*
	392	* @access public
	393	* @author Quinn Comendant <quinn@strangecode.com>
	394	* @since 17 Jul 2005 17:20:18
	395	*/
	396	function stop()
	397	{
	398	session_write_close();
	399	restore_include_path();
	400	$this->running = false;
[172]	401	$num_queries = 0;
[103]	402	if (true === $this->getParam('enable_db')) {
[172]	403	$num_queries = $this->db->numQueries();
[103]	404	$this->db->close();
	405	}
[172]	406	$this->timer->stop('_app');
[202]	407	$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]	408	}
[42]	409
	410
[1]	411	/**
[84]	412	* Add a message to the session, which is printed in the header.
[1]	413	* Just a simple way to print messages to the user.
	414	*
	415	* @access public
	416	*
	417	* @param string $message The text description of the message.
	418	* @param int $type The type of message: MSG_NOTICE,
	419	* MSG_SUCCESS, MSG_WARNING, or MSG_ERR.
	420	* @param string $file __FILE__.
	421	* @param string $line __LINE__.
	422	*/
	423	function raiseMsg($message, $type=MSG_NOTICE, $file=null, $line=null)
	424	{
[32]	425	$message = trim($message);
[1]	426
[203]	427	if (!$this->running) {
	428	$this->logMsg(sprintf('Canceled method call %s, application not running.', __FUNCTION__), LOG_NOTICE, __FILE__, __LINE__);
[1]	429	return false;
	430	}
[42]	431
[203]	432	if ('' == trim($message)) {
	433	$this->logMsg(sprintf('Raised message is an empty string.', __FUNCTION__), LOG_NOTICE, __FILE__, __LINE__);
	434	return false;
	435	}
[406]	436
	437	// Avoid duplicate full-stops..
	438	$message = trim(preg_replace('/\.{2}$/', '.', $message));
[203]	439
[37]	440	// Save message in session under unique key to avoid duplicate messages.
[177]	441	$msg_id = md5($type . $message);
	442	if (!isset($_SESSION['_app'][$this->_ns]['messages'][$msg_id])) {
	443	$_SESSION['_app'][$this->_ns]['messages'][$msg_id] = array(
	444	'type' => $type,
	445	'message' => $message,
	446	'file' => $file,
	447	'line' => $line,
	448	'count' => (isset($_SESSION['_app'][$this->_ns]['messages'][$msg_id]['count']) ? (1 + $_SESSION['_app'][$this->_ns]['messages'][$msg_id]['count']) : 1)
	449	);
	450	}
[42]	451
[1]	452	if (!in_array($type, array(MSG_NOTICE, MSG_SUCCESS, MSG_WARNING, MSG_ERR))) {
[136]	453	$this->logMsg(sprintf('Invalid MSG_* type: %s', $type), LOG_NOTICE, __FILE__, __LINE__);
[1]	454	}
	455	}
[46]	456
	457	/**
	458	* Returns an array of the raised messages.
	459	*
	460	* @access public
[334]	461	* @return array List of messages in FIFO order.
[46]	462	* @author Quinn Comendant <quinn@strangecode.com>
	463	* @since 21 Dec 2005 13:09:20
	464	*/
	465	function getRaisedMessages()
	466	{
[136]	467	if (!$this->running) {
	468	$this->logMsg(sprintf('Canceled method call %s, application not running.', __FUNCTION__), LOG_NOTICE, __FILE__, __LINE__);
	469	return false;
[46]	470	}
[42]	471
[154]	472	return isset($_SESSION['_app'][$this->_ns]['messages']) ? $_SESSION['_app'][$this->_ns]['messages'] : array();
[46]	473	}
	474
[1]	475	/**
[46]	476	* Resets the message list.
	477	*
	478	* @access public
	479	* @author Quinn Comendant <quinn@strangecode.com>
	480	* @since 21 Dec 2005 13:21:54
	481	*/
	482	function clearRaisedMessages()
	483	{
[136]	484	if (!$this->running) {
	485	$this->logMsg(sprintf('Canceled method call %s, application not running.', __FUNCTION__), LOG_NOTICE, __FILE__, __LINE__);
[46]	486	return false;
	487	}
	488
[154]	489	$_SESSION['_app'][$this->_ns]['messages'] = array();
[46]	490	}
	491
	492	/**
[1]	493	* Prints the HTML for displaying raised messages.
	494	*
[413]	495	* @param string $above Additional message to print above error messages (e.g. "Oops!").
	496	* @param string $below Additional message to print below error messages (e.g. "Please fix and resubmit").
	497	* @param string $print_gotohash_js Print a line of javascript that scrolls the browser window down to view any error messages.
	498	* @param string $hash The #hashtag to scroll to.
[1]	499	* @access public
	500	* @author Quinn Comendant <quinn@strangecode.com>
	501	* @since 15 Jul 2005 01:39:14
	502	*/
[413]	503	function printRaisedMessages($above='', $below='', $print_gotohash_js=false, $hash='sc-msg')
[1]	504	{
[136]	505	if (!$this->running) {
	506	$this->logMsg(sprintf('Canceled method call %s, application not running.', __FUNCTION__), LOG_NOTICE, __FILE__, __LINE__);
[1]	507	return false;
	508	}
[136]	509
	510	$messages = $this->getRaisedMessages();
[167]	511	if (!empty($messages)) {
[163]	512	?><div id="sc-msg" class="sc-msg"><?php
[413]	513	if ('' != $above) {
	514	?><div class="sc-above"><?php echo oTxt($above); ?></div><?php
	515	}
[167]	516	foreach ($messages as $m) {
	517	if (error_reporting() > 0 && $this->getParam('display_errors') && isset($m['file']) && isset($m['line'])) {
	518	echo "\n<!-- [" . $m['file'] . ' : ' . $m['line'] . '] -->';
	519	}
	520	switch ($m['type']) {
	521	case MSG_ERR:
	522	echo '<div class="sc-msg-error">' . $m['message'] . '</div>';
	523	break;
[42]	524
[167]	525	case MSG_WARNING:
	526	echo '<div class="sc-msg-warning">' . $m['message'] . '</div>';
	527	break;
[42]	528
[167]	529	case MSG_SUCCESS:
	530	echo '<div class="sc-msg-success">' . $m['message'] . '</div>';
	531	break;
[42]	532
[167]	533	case MSG_NOTICE:
	534	default:
	535	echo '<div class="sc-msg-notice">' . $m['message'] . '</div>';
	536	break;
[42]	537
[167]	538	}
[1]	539	}
[413]	540	if ('' != $below) {
	541	?><div class="sc-below"><?php echo oTxt($below); ?></div><?php
	542	}
[1]	543	?></div><?php
[413]	544	if ($print_gotohash_js) {
	545	?>
	546	<script type="text/javascript">
	547	/* <![CDATA[ */
	548	window.location.hash = '#<?php echo urlencode($hash); ?>';
	549	/* ]]> */
	550	</script>
	551	<?php
	552	}
[1]	553	}
[136]	554	$this->clearRaisedMessages();
[1]	555	}
[42]	556
[1]	557	/**
[44]	558	* Logs messages to defined channels: file, email, sms, and screen. Repeated messages are
[390]	559	* not repeated but printed once with count. Log events that match a sendable channel (email or SMS)
	560	* are sent once per 'log_multiple_timeout' setting (to avoid a flood of error emails).
[1]	561	*
	562	* @access public
	563	* @param string $message The text description of the message.
	564	* @param int $priority The type of message priority (in descending order):
[390]	565	* LOG_EMERG 0 system is unusable
	566	* LOG_ALERT 1 action must be taken immediately
	567	* LOG_CRIT 2 critical conditions
	568	* LOG_ERR 3 error conditions
	569	* LOG_WARNING 4 warning conditions
	570	* LOG_NOTICE 5 normal, but significant, condition
	571	* LOG_INFO 6 informational message
	572	* LOG_DEBUG 7 debug-level message
[1]	573	* @param string $file The file where the log event occurs.
	574	* @param string $line The line of the file where the log event occurs.
	575	*/
	576	function logMsg($message, $priority=LOG_INFO, $file=null, $line=null)
	577	{
[44]	578	static $previous_events = array();
	579
[1]	580	// If priority is not specified, assume the worst.
[136]	581	if (!$this->logPriorityToString($priority)) {
	582	$this->logMsg(sprintf('Log priority %s not defined. (Message: %s)', $priority, $message), LOG_EMERG, $file, $line);
[1]	583	$priority = LOG_EMERG;
	584	}
[42]	585
[15]	586	// If log file is not specified, don't log to a file.
[136]	587	if (!$this->getParam('log_directory') \|\| !$this->getParam('log_filename') \|\| !is_dir($this->getParam('log_directory')) \|\| !is_writable($this->getParam('log_directory'))) {
	588	$this->setParam(array('log_file_priority' => false));
	589	// We must use trigger_error to report this problem rather than calling $app->logMsg, which might lead to an infinite loop.
	590	trigger_error(sprintf('Codebase error: log directory (%s) not found or writable.', $this->getParam('log_directory')), E_USER_NOTICE);
[1]	591	}
[390]	592
	593	// Before we get any further, let's see if ANY log events are configured to be reported.
	594	if ((false === $this->getParam('log_file_priority') \|\| $priority > $this->getParam('log_file_priority'))
	595	&& (false === $this->getParam('log_email_priority') \|\| $priority > $this->getParam('log_email_priority'))
	596	&& (false === $this->getParam('log_sms_priority') \|\| $priority > $this->getParam('log_sms_priority'))
	597	&& (false === $this->getParam('log_screen_priority') \|\| $priority > $this->getParam('log_screen_priority'))) {
	598	// This event would not be recorded, skip it entirely.
	599	return false;
	600	}
[42]	601
[1]	602	// Make sure to log in the system's locale.
	603	$locale = setlocale(LC_TIME, 0);
	604	setlocale(LC_TIME, 'C');
[42]	605
[44]	606	// Strip HTML tags except any with more than 7 characters because that's probably not a HTML tag, e.g. <email@address.com>.
	607	preg_match_all('/(<[^>\s]{7,})[^>]*>/', $message, $strip_tags_allow);
	608	$message = strip_tags(preg_replace('/\s+/', ' ', $message), (!empty($strip_tags_allow[1]) ? join('> ', $strip_tags_allow[1]) . '>' : null));
	609
	610	// Store this event under a unique key, counting each time it occurs so that it only gets reported a limited number of times.
	611	$msg_id = md5($message . $priority . $file . $line);
[406]	612	if ($this->getParam('log_ignore_repeated_events') && isset($previous_events[$msg_id])) {
[44]	613	$previous_events[$msg_id]++;
	614	if ($previous_events[$msg_id] == 2) {
[136]	615	$this->logMsg(sprintf('%s (Event repeated %s or more times)', $message, $previous_events[$msg_id]), $priority, $file, $line);
[44]	616	}
	617	return false;
	618	} else {
	619	$previous_events[$msg_id] = 1;
	620	}
[341]	621
[390]	622	// For email and SMS notification types use "lock" files to prevent sending email and SMS notices ad infinitum.
	623	if ((false !== $this->getParam('log_email_priority') && $priority <= $this->getParam('log_email_priority'))
	624	\|\| (false !== $this->getParam('log_sms_priority') && $priority <= $this->getParam('log_sms_priority'))) {
	625	// This event will generate a "send" notification. Prepare lock file.
	626	$site_hash = md5(empty($_SERVER['SERVER_NAME']) ? $_SERVER['SCRIPT_FILENAME'] : $_SERVER['SERVER_NAME']);
	627	$lock_dir = $this->getParam('tmp_dir') . "/codebase_msgs_$site_hash/";
	628	// Just use the file and line for the msg_id to limit the number of possible messages
	629	// (the message string itself shan't be used as it may contain innumerable combinations).
	630	$lock_file = $lock_dir . md5($file . ':' . $line);
	631	if (!is_dir($lock_dir)) {
	632	mkdir($lock_dir);
	633	}
	634	$send_notifications = true;
	635	if (is_file($lock_file)) {
	636	$msg_last_sent = filectime($lock_file);
	637	// Has this message been sent more recently than the timeout?
	638	if ((time() - $msg_last_sent) <= $this->getParam('log_multiple_timeout')) {
	639	// This message was already sent recently.
	640	$send_notifications = false;
	641	} else {
	642	// Timeout has expired; send notifications again and reset timeout.
	643	touch($lock_file);
	644	}
[341]	645	} else {
[390]	646	touch($lock_file);
[341]	647	}
	648	}
[44]	649
[1]	650	// Data to be stored for a log event.
[44]	651	$event = array(
	652	'date' => date('Y-m-d H:i:s'),
	653	'remote ip' => getRemoteAddr(),
[414]	654	'pid' => getmypid(),
[136]	655	'type' => $this->logPriorityToString($priority),
[44]	656	'file:line' => "$file : $line",
[247]	657	'url' => mb_substr(isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : '', 0, 128),
[44]	658	'message' => $message
	659	);
[42]	660
[1]	661	// FILE ACTION
[390]	662	if (false !== $this->getParam('log_file_priority') && $priority <= $this->getParam('log_file_priority')) {
[44]	663	$event_str = '[' . join('] [', $event) . ']';
[247]	664	error_log(mb_substr($event_str, 0, 1024) . "\n", 3, $this->getParam('log_directory') . '/' . $this->getParam('log_filename'));
[1]	665	}
[42]	666
[390]	667	// EMAIL ACTION
	668	if (false !== $this->getParam('log_email_priority') && $priority <= $this->getParam('log_email_priority') && $send_notifications) {
[422]	669	$hostname = (isset($_SERVER['HTTP_HOST']) && '' != $_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : php_uname('n');
	670	$subject = sprintf('[%s %s] %s', $hostname, $event['type'], mb_substr($message, 0, 64));
	671	$email_msg = sprintf("A %s log event occurred on %s\n\n", $event['type'], $hostname);
[390]	672	$headers = 'From: ' . $this->getParam('site_email');
	673	foreach ($event as $k=>$v) {
	674	$email_msg .= sprintf("%-11s%s\n", $k, $v);
[1]	675	}
[390]	676	mb_send_mail($this->getParam('log_to_email_address'), $subject, $email_msg, $headers);
[1]	677	}
[390]	678
	679	// SMS ACTION
	680	if (false !== $this->getParam('log_sms_priority') && $priority <= $this->getParam('log_sms_priority') && $send_notifications) {
[422]	681	$hostname = (isset($_SERVER['HTTP_HOST']) && '' != $_SERVER['HTTP_HOST']) ? $_SERVER['HTTP_HOST'] : php_uname('n');
	682	$subject = sprintf('[%s %s]', $hostname, $priority);
[390]	683	$sms_msg = sprintf('%s [%s:%s]', mb_substr($event['message'], 0, 64), basename($file), $line);
	684	$headers = 'From: ' . $this->getParam('site_email');
	685	mb_send_mail($this->getParam('log_to_sms_address'), $subject, $sms_msg, $headers);
	686	}
[341]	687
[1]	688	// SCREEN ACTION
[390]	689	if (false !== $this->getParam('log_screen_priority') && $priority <= $this->getParam('log_screen_priority')) {
[189]	690	echo "[{$event['type']}] [{$event['message']}]\n";
[1]	691	}
[42]	692
[1]	693	// Restore original locale.
	694	setlocale(LC_TIME, $locale);
[390]	695
	696	return true;
[1]	697	}
[42]	698
[1]	699	/**
	700	* Returns the string representation of a LOG_* integer constant.
	701	*
	702	* @param int $priority The LOG_* integer constant.
	703	*
	704	* @return The string representation of $priority.
	705	*/
[259]	706	function logPriorityToString($priority) {
[1]	707	$priorities = array(
	708	LOG_EMERG => 'emergency',
	709	LOG_ALERT => 'alert',
	710	LOG_CRIT => 'critical',
	711	LOG_ERR => 'error',
	712	LOG_WARNING => 'warning',
	713	LOG_NOTICE => 'notice',
	714	LOG_INFO => 'info',
	715	LOG_DEBUG => 'debug'
	716	);
	717	if (isset($priorities[$priority])) {
	718	return $priorities[$priority];
	719	} else {
	720	return false;
	721	}
	722	}
[42]	723
[1]	724	/**
[334]	725	* Forcefully set a query argument even if one currently exists in the request.
[136]	726	* Values in the _carry_queries array will be copied to URLs (via $app->url()) and
[20]	727	* to hidden input values (via printHiddenSession()).
	728	*
	729	* @access public
[282]	730	* @param mixed $query_key The key (or keys, as an array) of the query argument to save.
	731	* @param mixed $val The new value of the argument key.
	732	* @author Quinn Comendant <quinn@strangecode.com>
	733	* @since 13 Oct 2007 11:34:51
	734	*/
	735	function setQuery($query_key, $val)
	736	{
	737	if (!is_array($query_key)) {
	738	$query_key = array($query_key);
	739	}
	740	foreach ($query_key as $k) {
	741	// Set the value of the specified query argument into the _carry_queries array.
	742	$this->_carry_queries[$k] = $val;
	743	}
	744	}
	745
	746	/**
	747	* Specify which query arguments will be carried persistently between requests.
	748	* Values in the _carry_queries array will be copied to URLs (via $app->url()) and
	749	* to hidden input values (via printHiddenSession()).
	750	*
	751	* @access public
[259]	752	* @param mixed $query_key The key (or keys, as an array) of the query argument to save.
[170]	753	* @param mixed $default If the key is not available, set to this default value.
[20]	754	* @author Quinn Comendant <quinn@strangecode.com>
	755	* @since 14 Nov 2005 19:24:52
	756	*/
[170]	757	function carryQuery($query_key, $default=false)
[20]	758	{
[259]	759	if (!is_array($query_key)) {
	760	$query_key = array($query_key);
[20]	761	}
[259]	762	foreach ($query_key as $k) {
	763	// If not already set, and there is a non-empty value provided in the request...
	764	if (!isset($this->_carry_queries[$k]) && false !== getFormData($k, $default)) {
	765	// Copy the value of the specified query argument into the _carry_queries array.
	766	$this->_carry_queries[$k] = getFormData($k, $default);
[331]	767	$this->logMsg(sprintf('Carrying query: %s => %s', $k, truncate(getDump($this->_carry_queries[$k], true), 128, 'end')), LOG_DEBUG, __FILE__, __LINE__);
[259]	768	}
	769	}
[20]	770	}
[42]	771
[20]	772	/**
[259]	773	* dropQuery() is the opposite of carryQuery(). The specified value will not appear in
	774	* url()/ohref()/printHiddenSession() modified URLs unless explicitly written in.
[325]	775	*
[259]	776	* @access public
	777	* @param mixed $query_key The key (or keys, as an array) of the query argument to remove.
[407]	778	* @param bool $unset Remove any values set in the request matching the given $query_key.
[259]	779	* @author Quinn Comendant <quinn@strangecode.com>
	780	* @since 18 Jun 2007 20:57:29
	781	*/
[325]	782	function dropQuery($query_key, $unset=false)
[259]	783	{
	784	if (!is_array($query_key)) {
	785	$query_key = array($query_key);
	786	}
	787	foreach ($query_key as $k) {
[260]	788	if (isset($this->_carry_queries[$k])) {
[259]	789	// Remove the value of the specified query argument from the _carry_queries array.
[325]	790	$this->logMsg(sprintf('Dropping carried query: %s => %s', $k, $this->_carry_queries[$k]), LOG_DEBUG, __FILE__, __LINE__);
[260]	791	unset($this->_carry_queries[$k]);
[259]	792	}
[325]	793	if ($unset && isset($_REQUEST[$k])) {
	794	unset($_REQUEST[$k], $_GET[$k], $_POST[$k], $_COOKIE[$k]);
	795	}
[259]	796	}
	797	}
	798
	799	/**
[1]	800	* Outputs a fully qualified URL with a query of all the used (ie: not empty)
[42]	801	* keys and values, including optional queries. This allows mindless retention
[32]	802	* of query arguments across page requests. If cookies are not
[325]	803	* used, the session id will be propagated in the URL.
[1]	804	*
[32]	805	* @param string $url The initial url
	806	* @param mixed $carry_args Additional url arguments to carry in the query,
	807	* or FALSE to prevent carrying queries. Can be any of the following formats:
	808	* array('key1', key2', key3') <-- to save these keys if in the form data.
	809	* array('key1'=>'value', key2'='value') <-- to set keys to default values if not present in form data.
	810	* false <-- To not carry any queries. If URL already has queries those will be retained.
[1]	811	*
	812	* @param mixed $always_include_sid Always add the session id, even if using_trans_sid = true. This is required when
	813	* URL starts with http, since PHP using_trans_sid doesn't do those and also for
	814	* header('Location...') redirections.
	815	*
	816	* @return string url with attached queries and, if not using cookies, the session id
	817	*/
[32]	818	function url($url, $carry_args=null, $always_include_sid=false)
[1]	819	{
[136]	820	if (!$this->running) {
	821	$this->logMsg(sprintf('Canceled method call %s, application not running.', __FUNCTION__), LOG_NOTICE, __FILE__, __LINE__);
[1]	822	return false;
	823	}
[42]	824
[20]	825	// Get any provided query arguments to include in the final URL.
	826	// If FALSE is a provided here, DO NOT carry the queries.
[1]	827	$do_carry_queries = true;
	828	$one_time_carry_queries = array();
	829	if (!is_null($carry_args)) {
	830	if (is_array($carry_args) && !empty($carry_args)) {
	831	foreach ($carry_args as $key=>$arg) {
	832	// Get query from appropriate source.
	833	if (false === $arg) {
	834	$do_carry_queries = false;
	835	} else if (false !== getFormData($arg, false)) {
	836	$one_time_carry_queries[$arg] = getFormData($arg); // Set arg to form data if available.
	837	} else if (!is_numeric($key) && '' != $arg) {
	838	$one_time_carry_queries[$key] = getFormData($key, $arg); // Set to arg to default if specified (overwritten by form data).
	839	}
	840	}
	841	} else if (false !== getFormData($carry_args, false)) {
	842	$one_time_carry_queries[$carry_args] = getFormData($carry_args);
	843	} else if (false === $carry_args) {
	844	$do_carry_queries = false;
	845	}
	846	}
[42]	847
[1]	848	// Get the first delimiter that is needed in the url.
[247]	849	$delim = mb_strpos($url, '?') !== false ? ini_get('arg_separator.output') : '?';
[32]	850
[1]	851	$q = '';
	852	if ($do_carry_queries) {
[20]	853	// Join the global _carry_queries and local one_time_carry_queries.
[136]	854	$query_args = urlEncodeArray(array_merge($this->_carry_queries, $one_time_carry_queries));
[1]	855	foreach ($query_args as $key=>$val) {
	856	// Check value is set and value does not already exist in the url.
	857	if (!preg_match('/[?&]' . preg_quote($key) . '=/', $url)) {
	858	$q .= $delim . $key . '=' . $val;
	859	$delim = ini_get('arg_separator.output');
	860	}
	861	}
	862	}
[42]	863
[1]	864	// Include the necessary SID if the following is true:
	865	// - no cookie in http request OR cookies disabled in App
	866	// - sessions are enabled
	867	// - the link stays on our site
[334]	868	// - transparent SID propagation with session.use_trans_sid is not being used OR url begins with protocol (using_trans_sid has no effect here)
[42]	869	// OR
[1]	870	// - we must include the SID because we say so (it's used in a context where cookies will not be effective, ie. moving from http to https)
	871	// AND
	872	// - the SID is not already in the query.
	873	if (
	874	(
	875	(
	876	(
[42]	877	!isset($_COOKIE[session_name()])
[136]	878	\|\| !$this->getParam('session_use_cookies')
[42]	879	)
[242]	880	&& $this->getParam('session_use_trans_sid')
[136]	881	&& $this->getParam('enable_session')
[42]	882	&& isMyDomain($url)
[242]	883	&& (
[20]	884	!ini_get('session.use_trans_sid')
[1]	885	\|\| preg_match('!^(http\|https)://!i', $url)
	886	)
[42]	887	)
[1]	888	\|\| $always_include_sid
	889	)
	890	&& !preg_match('/[?&]' . preg_quote(session_name()) . '=/', $url)
	891	) {
	892	$url .= $q . $delim . session_name() . '=' . session_id();
	893	return $url;
	894	} else {
	895	$url .= $q;
	896	return $url;
	897	}
	898	}
[32]	899
	900	/**
[136]	901	* Returns a HTML-friendly URL processed with $app->url and & replaced with &
[32]	902	*
	903	* @access public
	904	* @param string $url Input URL to parse.
[334]	905	* @return string URL passed through $app->url() and then & turned to $amp;.
[32]	906	* @author Quinn Comendant <quinn@strangecode.com>
	907	* @since 09 Dec 2005 17:58:45
	908	*/
	909	function oHREF($url, $carry_args=null, $always_include_sid=false)
	910	{
[136]	911	$url = $this->url($url, $carry_args, $always_include_sid);
[42]	912
[32]	913	// Replace any & not followed by an html or unicode entity with it's & equivalent.
	914	$url = preg_replace('/&(?![\w\d#]{1,10};)/', '&', $url);
[42]	915
[32]	916	return $url;
	917	}
[42]	918
[1]	919	/**
	920	* Prints a hidden form element with the PHPSESSID when cookies are not used, as well
[42]	921	* as hidden form elements for GET_VARS that might be in use.
[1]	922	*
	923	* @param mixed $carry_args Additional url arguments to carry in the query,
	924	* or FALSE to prevent carrying queries. Can be any of the following formats:
[32]	925	* array('key1', key2', key3') <-- to save these keys if in the form data.
	926	* array('key1'=>'value', key2'='value') <-- to set keys to default values if not present in form data.
	927	* false <-- To not carry any queries. If URL already has queries those will be retained.
[1]	928	*/
	929	function printHiddenSession($carry_args=null)
[32]	930	{
[136]	931	if (!$this->running) {
	932	$this->logMsg(sprintf('Canceled method call %s, application not running.', __FUNCTION__), LOG_NOTICE, __FILE__, __LINE__);
[1]	933	return false;
	934	}
[42]	935
[20]	936	// Get any provided query arguments to include in the final hidden form data.
	937	// If FALSE is a provided here, DO NOT carry the queries.
[1]	938	$do_carry_queries = true;
	939	$one_time_carry_queries = array();
	940	if (!is_null($carry_args)) {
	941	if (is_array($carry_args) && !empty($carry_args)) {
	942	foreach ($carry_args as $key=>$arg) {
	943	// Get query from appropriate source.
	944	if (false === $arg) {
	945	$do_carry_queries = false;
	946	} else if (false !== getFormData($arg, false)) {
	947	$one_time_carry_queries[$arg] = getFormData($arg); // Set arg to form data if available.
	948	} else if (!is_numeric($key) && '' != $arg) {
	949	$one_time_carry_queries[$key] = getFormData($key, $arg); // Set to arg to default if specified (overwritten by form data).
	950	}
	951	}
	952	} else if (false !== getFormData($carry_args, false)) {
	953	$one_time_carry_queries[$carry_args] = getFormData($carry_args);
	954	} else if (false === $carry_args) {
	955	$do_carry_queries = false;
	956	}
	957	}
[42]	958
[313]	959	// For each existing request value, we create a hidden input to carry it through a form.
[1]	960	if ($do_carry_queries) {
[20]	961	// Join the global _carry_queries and local one_time_carry_queries.
	962	// urlencode is not used here, not for form data!
[136]	963	$query_args = array_merge($this->_carry_queries, $one_time_carry_queries);
[1]	964	foreach ($query_args as $key=>$val) {
[136]	965	printf('<input type="hidden" name="%s" value="%s" />', $key, $val);
[1]	966	}
	967	}
[42]	968
[1]	969	// Include the SID if cookies are disabled.
[20]	970	if (!isset($_COOKIE[session_name()]) && !ini_get('session.use_trans_sid')) {
[136]	971	printf('<input type="hidden" name="%s" value="%s" />', session_name(), session_id());
[1]	972	}
	973	}
[42]	974
[1]	975	/**
	976	* Uses an http header to redirect the client to the given $url. If sessions are not used
	977	* and the session is not already defined in the given $url, the SID is appended as a URI query.
	978	* As with all header generating functions, make sure this is called before any other output.
	979	*
	980	* @param string $url The URL the client will be redirected to.
	981	* @param mixed $carry_args Additional url arguments to carry in the query,
	982	* or FALSE to prevent carrying queries. Can be any of the following formats:
	983	* -array('key1', key2', key3') <-- to save these keys if in the form data.
[136]	984	* -array('key1' => 'value', key2' => 'value') <-- to set keys to default values if not present in form data.
[1]	985	* -false <-- To not carry any queries. If URL already has queries those will be retained.
	986	* @param bool $always_include_sid Force session id to be added to Location header.
	987	*/
	988	function dieURL($url, $carry_args=null, $always_include_sid=false)
	989	{
[136]	990	if (!$this->running) {
	991	$this->logMsg(sprintf('Canceled method call %s, application not running.', __FUNCTION__), LOG_NOTICE, __FILE__, __LINE__);
[1]	992	return false;
	993	}
[42]	994
[1]	995	if ('' == $url) {
	996	// If URL is not specified, use the redirect_home_url.
[136]	997	$url = $this->getParam('redirect_home_url');
[1]	998	}
[42]	999
[1]	1000	if (preg_match('!^/!', $url)) {
	1001	// If relative URL is given, prepend correct local hostname.
[22]	1002	$scheme = 'on' == getenv('HTTPS') ? 'https' : 'http';
	1003	$host = getenv('HTTP_HOST');
	1004	$url = sprintf('%s://%s%s', $scheme, $host, $url);
[1]	1005	}
[22]	1006
[136]	1007	$url = $this->url($url, $carry_args, $always_include_sid);
[42]	1008
[202]	1009	// Should we send a "303 See Other" header here instead of relying on the 302 sent automatically by PHP?
[1]	1010	header(sprintf('Location: %s', $url));
[136]	1011	$this->logMsg(sprintf('dieURL: %s', $url), LOG_DEBUG, __FILE__, __LINE__);
[42]	1012
[202]	1013	// End application.
[1]	1014	// Recommended, although I'm not sure it's necessary: http://cn2.php.net/session_write_close
[136]	1015	$this->stop();
[1]	1016	die;
	1017	}
[42]	1018
[84]	1019	/*
[136]	1020	* Redirects a user by calling $app->dieURL(). It will use:
[84]	1021	* 1. the stored boomerang URL, it it exists
	1022	* 2. a specified $default_url, it it exists
	1023	* 3. the referring URL, it it exists.
	1024	* 4. redirect_home_url configuration variable.
	1025	*
	1026	* @access public
	1027	* @param string $id Identifier for this script.
[136]	1028	* @param mixed $carry_args Additional arguments to carry in the URL automatically (see $app->oHREF()).
[84]	1029	* @param string $default_url A default URL if there is not a valid specified boomerang URL.
[159]	1030	* @param bool $queryless_referrer_comparison Exclude the URL query from the refererIsMe() comparison.
[84]	1031	* @return bool False if the session is not running. No return otherwise.
	1032	* @author Quinn Comendant <quinn@strangecode.com>
	1033	* @since 31 Mar 2006 19:17:00
	1034	*/
[159]	1035	function dieBoomerangURL($id=null, $carry_args=null, $default_url=null, $queryless_referrer_comparison=false)
[1]	1036	{
[136]	1037	if (!$this->running) {
	1038	$this->logMsg(sprintf('Canceled method call %s, application not running.', __FUNCTION__), LOG_NOTICE, __FILE__, __LINE__);
[1]	1039	return false;
	1040	}
[42]	1041
[1]	1042	// Get URL from stored boomerang. Allow non specific URL if ID not valid.
[136]	1043	if ($this->validBoomerangURL($id, true)) {
[154]	1044	if (isset($id) && isset($_SESSION['_app'][$this->_ns]['boomerang']['url'][$id])) {
	1045	$url = $_SESSION['_app'][$this->_ns]['boomerang']['url'][$id];
[136]	1046	$this->logMsg(sprintf('dieBoomerangURL(%s) found: %s', $id, $url), LOG_DEBUG, __FILE__, __LINE__);
[1]	1047	} else {
[154]	1048	$url = end($_SESSION['_app'][$this->_ns]['boomerang']['url']);
[136]	1049	$this->logMsg(sprintf('dieBoomerangURL(%s) using: %s', $id, $url), LOG_DEBUG, __FILE__, __LINE__);
[1]	1050	}
[22]	1051	// Delete stored boomerang.
[136]	1052	$this->deleteBoomerangURL($id);
[84]	1053	} else if (isset($default_url)) {
	1054	$url = $default_url;
[159]	1055	} else if (!refererIsMe(true === $queryless_referrer_comparison)) {
[1]	1056	// Ensure that the redirecting page is not also the referrer.
	1057	$url = getenv('HTTP_REFERER');
[136]	1058	$this->logMsg(sprintf('dieBoomerangURL(%s) using referrer: %s', $id, $url), LOG_DEBUG, __FILE__, __LINE__);
[1]	1059	} else {
[22]	1060	// If URL is not specified, use the redirect_home_url.
[136]	1061	$url = $this->getParam('redirect_home_url');
[203]	1062	$this->logMsg(sprintf('dieBoomerangURL(%s) using redirect_home_url: %s', $id, $url), LOG_DEBUG, __FILE__, __LINE__);
[1]	1063	}
[42]	1064
[84]	1065	// A redirection will never happen immediately twice.
[1]	1066	// Set the time so ensure this doesn't happen.
[154]	1067	$_SESSION['_app'][$this->_ns]['boomerang']['time'] = time();
[136]	1068	$this->dieURL($url, $carry_args);
[1]	1069	}
[42]	1070
[1]	1071	/**
[136]	1072	* Set the URL to return to when $app->dieBoomerangURL() is called.
[1]	1073	*
	1074	* @param string $url A fully validated URL.
	1075	* @param bool $id An identification tag for this url.
	1076	* FIXME: url garbage collection?
	1077	*/
	1078	function setBoomerangURL($url=null, $id=null)
	1079	{
[136]	1080	if (!$this->running) {
	1081	$this->logMsg(sprintf('Canceled method call %s, application not running.', __FUNCTION__), LOG_NOTICE, __FILE__, __LINE__);
[1]	1082	return false;
	1083	}
[84]	1084	// A redirection will never happen immediately after setting the boomerangURL.
[136]	1085	// Set the time so ensure this doesn't happen. See $app->validBoomerangURL for more.
[359]	1086	/// FIXME: Why isn't the time set here under setBoomerangURL() and only under dieBoomerangURL()?
[42]	1087
[22]	1088	if ('' != $url && is_string($url)) {
[242]	1089	// Delete any boomerang request keys in the query string (along with any trailing delimiters after the deletion).
	1090	$url = preg_replace(array('/([&?])boomerang=\w+[&?]?/', '/[&?]$/'), array('$1', ''), $url);
[42]	1091
[154]	1092	if (isset($_SESSION['_app'][$this->_ns]['boomerang']['url']) && is_array($_SESSION['_app'][$this->_ns]['boomerang']['url']) && !empty($_SESSION['_app'][$this->_ns]['boomerang']['url'])) {
[1]	1093	// If the URL currently exists in the boomerang array, delete.
[154]	1094	while ($existing_key = array_search($url, $_SESSION['_app'][$this->_ns]['boomerang']['url'])) {
	1095	unset($_SESSION['_app'][$this->_ns]['boomerang']['url'][$existing_key]);
[1]	1096	}
	1097	}
[42]	1098
[1]	1099	if (isset($id)) {
[154]	1100	$_SESSION['_app'][$this->_ns]['boomerang']['url'][$id] = $url;
[1]	1101	} else {
[154]	1102	$_SESSION['_app'][$this->_ns]['boomerang']['url'][] = $url;
[1]	1103	}
[136]	1104	$this->logMsg(sprintf('setBoomerangURL(%s): %s', $id, $url), LOG_DEBUG, __FILE__, __LINE__);
[1]	1105	return true;
	1106	} else {
[136]	1107	$this->logMsg(sprintf('setBoomerangURL(%s) is empty!', $id, $url), LOG_NOTICE, __FILE__, __LINE__);
[1]	1108	return false;
	1109	}
	1110	}
[42]	1111
[1]	1112	/**
[333]	1113	* Return the URL set for the specified $id, or an empty string if one isn't set.
[1]	1114	*
	1115	* @param string $id An identification tag for this url.
	1116	*/
	1117	function getBoomerangURL($id=null)
	1118	{
[136]	1119	if (!$this->running) {
	1120	$this->logMsg(sprintf('Canceled method call %s, application not running.', __FUNCTION__), LOG_NOTICE, __FILE__, __LINE__);
[1]	1121	return false;
	1122	}
[42]	1123
[1]	1124	if (isset($id)) {
[154]	1125	if (isset($_SESSION['_app'][$this->_ns]['boomerang']['url'][$id])) {
	1126	return $_SESSION['_app'][$this->_ns]['boomerang']['url'][$id];
[1]	1127	} else {
	1128	return '';
	1129	}
[154]	1130	} else if (is_array($_SESSION['_app'][$this->_ns]['boomerang']['url'])) {
	1131	return end($_SESSION['_app'][$this->_ns]['boomerang']['url']);
[1]	1132	} else {
	1133	return false;
	1134	}
	1135	}
[42]	1136
[1]	1137	/**
	1138	* Delete the URL set for the specified $id.
	1139	*
	1140	* @param string $id An identification tag for this url.
	1141	*/
	1142	function deleteBoomerangURL($id=null)
	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
[136]	1149	$this->logMsg(sprintf('deleteBoomerangURL(%s): %s', $id, $this->getBoomerangURL($id)), LOG_DEBUG, __FILE__, __LINE__);
[22]	1150
[154]	1151	if (isset($id) && isset($_SESSION['_app'][$this->_ns]['boomerang']['url'][$id])) {
	1152	unset($_SESSION['_app'][$this->_ns]['boomerang']['url'][$id]);
	1153	} else if (is_array($_SESSION['_app'][$this->_ns]['boomerang']['url'])) {
	1154	array_pop($_SESSION['_app'][$this->_ns]['boomerang']['url']);
[1]	1155	}
	1156	}
[42]	1157
[1]	1158	/**
[103]	1159	* Check if a valid boomerang URL value has been set. A boomerang URL is considered
	1160	* valid if: 1) it is not empty, 2) it is not the current URL, and 3) has not been accessed within n seconds.
[1]	1161	*
[103]	1162	* @return bool True if it is set and valid, false otherwise.
[1]	1163	*/
	1164	function validBoomerangURL($id=null, $use_nonspecificboomerang=false)
	1165	{
[136]	1166	if (!$this->running) {
	1167	$this->logMsg(sprintf('Canceled method call %s, application not running.', __FUNCTION__), LOG_NOTICE, __FILE__, __LINE__);
[1]	1168	return false;
	1169	}
[42]	1170
[154]	1171	if (!isset($_SESSION['_app'][$this->_ns]['boomerang']['url'])) {
[136]	1172	$this->logMsg(sprintf('validBoomerangURL(%s) no boomerang URL set.', $id), LOG_DEBUG, __FILE__, __LINE__);
[1]	1173	return false;
	1174	}
[42]	1175
[334]	1176	// Time is the time stamp of a boomerangURL redirection, or setting of a boomerangURL.
[1]	1177	// a boomerang redirection will always occur at least several seconds after the last boomerang redirect
	1178	// or a boomerang being set.
[154]	1179	$boomerang_time = isset($_SESSION['_app'][$this->_ns]['boomerang']['time']) ? $_SESSION['_app'][$this->_ns]['boomerang']['time'] : 0;
[42]	1180
[22]	1181	$url = '';
[154]	1182	if (isset($id) && isset($_SESSION['_app'][$this->_ns]['boomerang']['url'][$id])) {
	1183	$url = $_SESSION['_app'][$this->_ns]['boomerang']['url'][$id];
[1]	1184	} else if (!isset($id) \|\| $use_nonspecificboomerang) {
	1185	// Use non specific boomerang if available.
[154]	1186	$url = end($_SESSION['_app'][$this->_ns]['boomerang']['url']);
[1]	1187	}
[42]	1188
[136]	1189	$this->logMsg(sprintf('validBoomerangURL(%s) testing: %s', $id, $url), LOG_DEBUG, __FILE__, __LINE__);
[22]	1190
	1191	if ('' == $url) {
[136]	1192	$this->logMsg(sprintf('validBoomerangURL(%s) not valid, empty!', $id), LOG_DEBUG, __FILE__, __LINE__);
[1]	1193	return false;
	1194	}
	1195	if ($url == absoluteMe()) {
	1196	// The URL we are directing to is the current page.
[136]	1197	$this->logMsg(sprintf('validBoomerangURL(%s) not valid, same as absoluteMe: %s', $id, $url), LOG_DEBUG, __FILE__, __LINE__);
[1]	1198	return false;
	1199	}
	1200	if ($boomerang_time >= (time() - 2)) {
[159]	1201	// Last boomerang direction was less than 2 seconds ago.
	1202	$this->logMsg(sprintf('validBoomerangURL(%s) not valid, boomerang_time too short: %s seconds', $id, time() - $boomerang_time), LOG_DEBUG, __FILE__, __LINE__);
[1]	1203	return false;
	1204	}
[42]	1205
[136]	1206	$this->logMsg(sprintf('validBoomerangURL(%s) is valid: %s', $id, $url), LOG_DEBUG, __FILE__, __LINE__);
[1]	1207	return true;
	1208	}
	1209
	1210	/**
	1211	* Force the user to connect via https (port 443) by redirecting them to
	1212	* the same page but with https.
	1213	*/
	1214	function sslOn()
	1215	{
[38]	1216	if (function_exists('apache_get_modules')) {
[42]	1217	$modules = apache_get_modules();
[38]	1218	} else {
	1219	// It's safe to assume we have mod_ssl if we can't determine otherwise.
	1220	$modules = array('mod_ssl');
	1221	}
[42]	1222
[136]	1223	if ('' == getenv('HTTPS') && $this->getParam('ssl_enabled') && in_array('mod_ssl', $modules)) {
	1224	$this->raiseMsg(sprintf(_("Secure SSL connection made to %s"), $this->getParam('ssl_domain')), MSG_NOTICE, __FILE__, __LINE__);
[1]	1225	// Always append session because some browsers do not send cookie when crossing to SSL URL.
[136]	1226	$this->dieURL('https://' . $this->getParam('ssl_domain') . getenv('REQUEST_URI'), null, true);
[1]	1227	}
	1228	}
[42]	1229
	1230
[1]	1231	/**
	1232	* to enforce the user to connect via http (port 80) by redirecting them to
	1233	* a http version of the current url.
	1234	*/
	1235	function sslOff()
	1236	{
[53]	1237	if ('' != getenv('HTTPS')) {
[1]	1238	$this->dieURL('http://' . getenv('HTTP_HOST') . getenv('REQUEST_URI'), null, true);
	1239	}
	1240	}
	1241
[42]	1242
[1]	1243	} // End.
	1244
[341]	1245	?>

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