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source: trunk/lib/App.inc.php @ 262

Last change on this file since 262 was 260, checked in by quinn, 17 years ago
Fixed bug in App::dropQuery() method.
File size: 45.9 KB

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

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