Wrong branch itools/live/devel-utf8 removed

1 files changed, 0 insertions, 765 deletions

diff --git a/devel-utf8/it_url.class b/devel-utf8/it_url.class
deleted file mode 100644
index 305bde9..0000000
--- a/devel-utf8/it_url.class
+++ /dev/null
@@ -1,765 +0,0 @@
-<?php
-/*
-**	$Id$
-**
-**	Copyright (C) 1995-2007 by the ITools Authors.
-**	This file is part of ITools - the Internet Tools Library
-**
-**	ITools is free software; you can redistribute it and/or modify
-**	it under the terms of the GNU General Public License as published by
-**	the Free Software Foundation; either version 3 of the License, or
-**	(at your option) any later version.
-**
-**	ITools is distributed in the hope that it will be useful,
-**	but WITHOUT ANY WARRANTY; without even the implied warranty of
-**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-**	GNU General Public License for more details.
-**
-**	You should have received a copy of the GNU General Public License
-**	along with this program.  If not, see <http://www.gnu.org/licenses/>.
-**
-**	url.class - URL parsing, retrieval and caching functions
-*/
-
-class it_url
-{
-	/* E.g. HTTP://falcon:joshua@www.Relog.CH.:80/default.asp */
-	var $url;		/* E.g. http://www.relog.ch/ */
-	var $protocol;		/* E.g. http */
-	var $hostname;		/* E.g. relog.ch */
-	var $realhostname;	/* E.g. www.relog.ch */
-	var $port;		/* E.g. 80 */
-	var $path;		/* E.g. / */
-	var $rawurl;		/* E.g. HTTP://falcon:joshua@www.Relog.CH.:80/default.asp */
-	var $user;		/* E.g. falcon */
-	var $pass;		/* E.g. joshua */
-
-	var $page;		/* Page or empty */
-	var $page_read;		/* true if page read */
-	var $title;		/* Page title or empty */
-	var $description;	/* Page description or empty */
-
-	var $headers;		/* Headers of page fetched by get() */
-	var $data;		/* Data part, even if return code is not 200 */
-	var $result;		/* Return code of get() */
-	var $redir = 0;		/* Redirect count */
-
-
-/**
- * Constructor: canonicalize an URL
- * @param $url URL this object represents
- */
-function it_url($url = null, $options = array())
-{
-	$this->rawurl = $url;
-
-	if (preg_match('#^([a-z]+):/+(?:([^:]*):([^@]*)@)?(.*)$#i', $url, $regs))
-	{
-		$this->protocol = strtolower($regs[1]);
-		$this->user = $regs[2];
-		$this->pass = $regs[3];
-		$url = $regs[4];
-	}
-	else if (preg_match('/^[a-z]:/', $url) || preg_match('#^/#', $url))
-	{
-		$this->protocol = 'file';
-	}
-	else
-		$this->protocol = 'http';
-
-	/* Default port */
-	if ($this->protocol == 'http')
-		$protoport = 80;
-	else if ($this->protocol == 'https')
-		$protoport = 443;
-
-	$this->port = intval($protoport);
-
-	if (class_exists('Net_IDNA', false))
-		$idn = Net_IDNA::getInstance();
-
-	if ($idn)
-		$pattern = '^([^/]+)/*(.*)$';
-	else
-		$pattern = '^([a-z0-9_:\.-]+)/*(.*)$';
-
-	if (preg_match("#$pattern#i", $url, $regs))
-	{
-		list($hostname, $port) = explode(':', $regs[1]);
-
-		$this->realhostname = strtolower($hostname);
-
-		if ($port)
-			$this->port = intval($port);
-
-		$url = $regs[2];
-	}
-
-	$this->hostname = preg_replace('/^www\./', '', $this->realhostname);
-
-	# Get rid of common index file names
-	$url = preg_replace('#(^|/)(index\.[ps]?html?|index\.php[34]?|default\.aspx?)$#', '', $url);
-
-	$this->path = preg_replace('#^/$#', '', $url);
-
-	if ($this->port != $protoport)
-		$this->url = "$this->protocol://$this->realhostname:$this->port/$this->path";
-	else
-		$this->url = "$this->protocol://$this->realhostname/$this->path";
-
-	if ($idn)
-	{
-		$realhostname = $this->realhostname;
-
-		if (!preg_match('/^utf-?8$/i', $options['encoding']))
-			$realhostname = utf8_encode($realhostname);
-
-		$encoded = $idn->encode($realhostname);
-
-		if ($encoded != $realhostname)
-			$this->realhostname = $encoded;
-	}
-}
-
-
-/**
- * Read the page into memory, extract title and description and
- * set $this->page, $this->title and $this->description
- * @param $timeout Timeout for operation, defaults to unlimited (0)
- * @return True if page has been read and $this->page is set
- */
-function read_page($timeout = 0)
-{
-	unset($this->page);
-	unset($this->title);
-	unset($this->description);
-
-	/*
-	** If the URL does not contain a dot followed by at least one character,
-	** it is considered bogus. This prevents 'localhost', 'www', and numerical IP addresses.
-	*/
-	if (!preg_match('/\.[a-z]+$/i', $this->realhostname))
-		return 0;
-
-	$url = $this->rawurl;
-	while ($this->page == '')
-	{
-		$cmd = 'LANG=C wget 2>&1 -T ' . ((int)$timeout) . ' -q -U "Mozilla/4.0 (Compatible; Relog ITools)" -O - ' . preg_replace("/[ \t]/", '\\ ', escapeshellcmd("$url"));
-		$this->page = `$cmd`;
-
-		if ($this->page == '')	/* An error occurred. Find out what it was. */
-		{
-			$cmd = 'LANG=C wget 2>&1 -T' . ((int)$timeout) . ' -v -U "Mozilla/4.0 (Compatible; Relog ITools)" -O - ' . preg_replace("/[ \t]/", '\\ ', escapeshellcmd($url));
-			$error = `$cmd`;
-			if (preg_match('/Location: ([^ ]*)/i', $error, $regs)) /* Redirect ? */
-			{
-				$url = $regs[1];
-				if (!preg_match('/^[a-z]+:/i', $url))	/* Kludge for Miss Kournikova's admirers: grok local redirects (in violation of RFC) */
-					$url = $this->rawurl.'/'.$url;
-			}
-			else
-				break;
-		}
-
-		if (++$count > 4)	/* Avoid infinite redirect loops */
-			break;
-	}
-
-	$this->page_read = 1;
-
-	if (preg_match('#<title>([^<]*)</title>#i', $this->page, $regs))
-		$this->title = it_htmlentities_decode($regs[1]);
-
-	if (preg_match('/<meta name="description"[^>]+content="([^"]*)">/i', $this->page, $regs))
-		$this->description = it_htmlentities_decode($regs[1]);
-
-	return ($this->page != '');
-}
-
-
-/* Return the description of this page */
-function get_description()
-{
-	if (!$this->page_read)
-		$this->read_page();
-
-	return $this->description;
-}
-
-
-/* Return the title of this page */
-function get_title()
-{
-	if (!$this->page_read)
-		$this->read_page();
-
-	return $this->title;
-}
-
-/**
- * Check if a given url (currently http:port80-only) can be fetched
- * Note: Redirects are treated as succesful
- * $timeout Timeout for connection in seconds
- * @return true if url could be fetched
- */
-function is_reachable($timeout = 5)
-{
-	$result = false;
-
-	if ($fp = @fsockopen($this->realhostname, $this->port, $dummy_errno, $dummy_errstr, $timeout))
-	{
-		fputs($fp, "GET /$this->path HTTP/1.0\r\nHost: $this->realhostname\r\nUser-Agent: ITools\r\n\r\n");
-		$line = fgets($fp, 128);
-		fclose($fp);
-
-		#debug("it_url::is_reachable($this->rawurl: $line");
-		$result = preg_match("#^$this->protocol/[^ ]+ +[23]#i", $line);
-	}
-
-	return $result;
-}
-
-/**
- * Get simple URL with timeout. Can be called statically
- *
- * If the protocol is not http, only features of get_multi are supported.
- *
- * @param $p parameter array with the following keys
- * @param $p['url']: url to get, defaults to constructor URL
- * @param $p['headers']: optional array of HTTP headers to send
- * @param $p['timeout']: timeout per read in seconds, defaults to 5. fractions allowed
- * @param $p['totaltimeout']: timeout for the whole function call
- * @param $p['filemtime']: Add HTTP header to only fetch when newer than this, otherwise return true instead of data
- * @param $p['data']: POST data array with key-value pairs
- * @param $p['retries']: Number of retries if download fails, default 1
- * @return contents of resulting page, considering redirects, excluding headers, or false on error
- */
-function get($p=null, $timeout=5)
-{
-	if (!is_array($p))
-		$p = array('url' => $p, 'timeout' => $timeout);
-
-	$p += array('totaltimeout' => "999999", 'timeout' => 5, 'retries' => 1);
-
-	if ($this instanceof it_url)
-	{
-		$url = $this;
-		if ($p['url'])
-			$this->it_url($p['url']);
-	}
-	else	# called statically
-		$url = new it_url($p['url']);
-
-	$url->result = $result = false;
-	unset($url->data);
-	$url->headers = array();
-	$p['timeout'] = min($p['timeout'], $p['totaltimeout']);	# No operation may be longer than totaltimeout
-	$endtime = time() + $p['totaltimeout'];
-
-	if ($url->protocol == 'http')
-	{
-		if ($fp = @fsockopen($url->realhostname, $url->port, $dummy_errno, $dummy_errstr, $p['timeout']))
-		{
-			# urlencode data pairs if is array
-			if (is_array($p['data']))
-				$data = it_url::params($p['data']);
-
-			$p['headers'] = (array)$p['headers'] + array(
-				'Host' => $url->realhostname,
-				'User-Agent' => "Mozilla/4.0 (compatible; MSIE 7.0; ITools)",
-				'Accept-Language' => T_lang(),
-			);
-
-			if (is_int($p['filemtime']))
-				$p['headers']['If-Modified-Since'] = date("r", $p['filemtime']);
-
-			if ($datalen = strlen($data))
-			{
-				$method = "POST";
-				$p['headers'] += array(
-					'Content-Type' => "application/x-www-form-urlencoded",
-					'Content-Length' => $datalen,
-				);
-			}
-			else
-				$method = "GET";
-
-			if ($url->user || $url->pass)
-				$p['headers'] += array('Authorization' => 'Basic ' . base64_encode($url->user . ':' . $url->pass));
-
-			foreach ($p['headers'] as $header => $value)
-					$headers .= "$header: $value\r\n";
-
-			stream_set_timeout($fp, intval($p['timeout']), intval(($p['timeout']*1000000)%1000000));
-			@fputs($fp, "$method /$url->path HTTP/1.0\r\n$headers\r\n$data");
-
-			while (!feof($fp) && ($line = @fgets($fp, 10240)) && ($line = trim($line)) && (time() < $endtime))
-			{
-				if (preg_match('#^(HTTP\S+)\s(\d+)#', $line, $parts)) # Parse result code
-					$url->headers[$parts[1]] = $url->result = $parts[2];
-				elseif (preg_match('#^Location: (https?://[^/]*)?(/)?(.*)$#i', $line, $parts) && ($parts[1] != $url->url)) # Handle redirects (supports relative and global)
-				{
-					unset($p['url'], $p['headers']['Host']);
-					$url->it_url($parts[1] ? $parts[1].$parts[2].$parts[3] : $url->protocol.'://'.$url->realhostname.($parts[2] ? $parts[2].$parts[3] : '/'.dirname($url->path).'/'.$parts[3]));
-					if (++$url->redir <= 4)  /* Avoid infinite redirects */
-						return $url->get($p);
-				}
-				elseif (preg_match('#^([^:]+): (.*)$#', $line, $parts))
-					$url->headers[$parts[1]] = $parts[2];
-			}
-
-			if ($url->result)
-			{
-				if ($url->headers['Transfer-Encoding'] == "chunked")	# Bogus HTTP/1.1 chunked answer from server (e.g. Wordpress/Apache2/PHP5)
-				{
-					while ($len = hexdec(fgets($fp)))
-					{
-						$chunk = "";
-
-						while (!feof($fp) && (strlen($chunk) < $len) && (time() < $endtime))
-							$chunk .= @fread($fp, $len - strlen($chunk));
-
-						$url->data .= $chunk;
-					}
-				}
-				else
-				{
-					while (!feof($fp) && (time() < $endtime))
-						$url->data .= @fread($fp, 20480);
-				}
-
-				if ($p['filemtime'] && ($url->result == 304))
-					$result = true;	# Not modified, success but no data
-				else if ($url->result < 400)
-					$result =& $url->data;
-			}
-
-			@fclose($fp);
-		}
-	} else {
-		$results = self::get_multi(array('urls' => array('one' => $p['url'])) + $p);
-		$result = $results['one'];
-	}
-
-	if (time() >= $endtime)
-		$result = false;
-
-	if (!$result && $p['retries'] > 0 && $url->result < 400)
-		$result = $url->get(array('retries' => $p['retries'] - 1) + $p);
-
-	return $result;
-}
-
-
-/**
- * Get multiple URL in parallel with timeout. Needs to be called statically
- * @param $p parameter array with the following keys (same as it_url::get)
- * @param $p['urls']: array of urls to get
- * @param $p['timeout']: timeout per read in seconds, defaults to 5. (TODO: fractions allowed?)
- * @param $p['totaltimeout']: timeout for the whole function call
- * @param $p['headers']: optional array of HTTP headers to send
- * @return array of contents of resulting page using same keys as the urls input array,
- *         considering redirects, excluding headers
- */
-function get_multi($p=null)
-{
-	$p += array('totaltimeout' => "999999", 'timeout' => 5, 'retries' => 1);
-	$p['headers'] = (array)$p['headers'] + array(
-		'User-Agent' => "Mozilla/4.0 (compatible; MSIE 7.0; ITools)",
-		'Accept-Language' => T_lang(),
-	);
-	foreach ($p['headers'] as $header => $value)
-		$headers[] = "$header: $value";
-	$opts = array(
-		CURLOPT_HEADER => false,
-		CURLOPT_RETURNTRANSFER => true,
-		CURLOPT_TIMEOUT => $p['totaltimeout'],
-		CURLOPT_LOW_SPEED_LIMIT => 5,
-		CURLOPT_LOW_SPEED_TIME => $p['timeout'],
-		CURLOPT_FOLLOWLOCATION => true,
-		CURLOPT_HTTPHEADER => $headers,
-	);
-	$mh = curl_multi_init();
-
-	foreach ($p['urls'] as $key => $url)
-	{
-		$ch[$key] = curl_init();
-		curl_setopt($ch[$key], CURLOPT_URL, $url);
-		curl_setopt_array($ch[$key], $opts);
-		curl_multi_add_handle($mh, $ch[$key]);
-	}
-
-	# curl_multi loop copied from example at http://php.net/manual/en/function.curl-multi-exec.php 
-	$active = null;
-	do {
-		$mrc = curl_multi_exec($mh, $active);
-	} while ($mrc == CURLM_CALL_MULTI_PERFORM);
-
-	while ($active && $mrc == CURLM_OK) 
-	{
-		if (curl_multi_select($mh) != -1) 
-		{
-			do {
-				$mrc = curl_multi_exec($mh, $active);
-			} while ($mrc == CURLM_CALL_MULTI_PERFORM);
-		}
-	}
-
-	$results = array();
-	foreach ($p['urls'] as $key => $url)
-	{
-		$results[$key] = curl_multi_getcontent($ch[$key]);
-		curl_multi_remove_handle($mh, $ch[$key]);
-		curl_close($ch[$key]);
-	}
-	curl_multi_close($mh);
-	return $results;
-}
-
-/**
- * Construct a local directory name to cache an URL. Named args:
- * @param $p['cachedir']    directory to store cache files in, defaults to $ULTRAHOME/var/urlcache
- * @param $p['id']          If you need more than one type of cache (e.g. different maxage) you can specify an id
- */
-function get_cache_dir($p)
-{
-	$p += array('cachedir' => $GLOBALS['ULTRAHOME'] . "/var/urlcache", 'id' => "default");
-	return rtrim($p['cachedir'] . "/" . $p['id'], "/");
-}
-
-
-/**
- * Construct a local file name to cache an URL. Named args:
- * @param $p['url'] remote url to get
- * @param $p['cachedir']    directory to store cache files in, @see get_cache_dir
- * @param $p['id']          If you need more than one type of cache (e.g. different maxage) you can specify an id
- */
-function get_cache_filename($p)
-{
-	if (!is_array($p))
-		$p = array('url'=>$p);
-
-	$p['cachedir'] = it_url::get_cache_dir($p);
-	$filename = md5(T_lang() . $p['url'] . ($p['headers'] ? serialize($p['headers']) : ""));
-
-	return $p['cachedir'] . "/" . substr($filename, 0, 2) . "/$filename";
-}
-
-
-/**
- * Store contents of url in a file and return file name. Threadsafe: Provides locking. Called statically.
- * Requires webserver writeable directory in $p['cachdedir']. Params in associative array p:
- * @param $p['url']         url to get
- * @param $p['headers']     optional array of HTTP headers to send
- * @param $p['cachedir']    directory to store cache files in, @see get_cache_dir
- * @param $p['id']          If you need more than one type of cache (e.g. different maxage) you can specify an id
- * @param $p['timeout']     timeout in seconds, default 10. fractions allowed
- * @param $p['maxage']      maximum age of cache entries in seconds, default 86400
- * @param $p['cleanbefore'] maximum daytime when attempting cleanup, default 7200
- * @param $p['preprocess']  callback function (or array for methods) to change received file or array('function' => ..., 'in' => $src, 'out' => $dst, ...) with callback function plus args
- * @param $p['safety']      value 0 means dont generate alert, value 1 means generate alerts on timeouts and failures
- * @param $p['keepfailed']  keep old versions of files if download fails (sending alerts conservatively)
- * @param $p['returnheaders'] Return array($path, $headers) instead of simply $path
- * @param $p['it_error']    parameters for it::error()
- */
-function get_cache($p = array())
-{
-	$p += array('timeout' => 10, 'maxage' => 86400, 'cleanbefore' => 7200, 'safety' => 1, 'it_error' => array());
-	$p['totaltimeout'] = $p['timeout'];
-	$path = it_url::get_cache_filename($p);	# Must be before changing cachedir below
-	$p['cachedir'] = it_url::get_cache_dir($p);
-
-	@mkdir($p['cachedir']);
-	@mkdir(dirname($path));
-
-	if (!is_writable(dirname($path)))
-		it::error(dirname($path) . " not writable");
-
-	if ($filemtime = it_url::_expired($path, $p['maxage']))	# Outdated(non-zero int) or non-existant(true)?
-	{
-		$fileexists = $filemtime !== true;
-
-		if ($lock = it_url::_lock($path))
-		{
-			# Touch existing file to prevent locking other getters while refreshing
-			if ($fileexists)
-				touch($path);
-
-			EDC('getcache', "new", $filemtime, $p['url'], $path);
-			$url = new it_url;
-			if ($result = $url->get($p + array('filemtime' => EDC('nocache') ? null : $filemtime)))	# => true means not modified (no new data fetched)
-			{
-				$newfile = it_url::_atomicwrite($path, $result);
-				if ($p['returnheaders'])
-					file_put_contents("$path.headers", '<?php return ' . var_export($url->headers, true) . ";\n");
-			}
-			else if ($p['keepfailed'])
-				$result = $fileexists;
-			else
-				@unlink($path);	# Expired and failed to get
-
-			it_url::_unlock($path, $lock);
-		}
-		else
-		{
-			# Wait for file currently being transferred
-			EDC('getcache', "wait", $p['url'], $path);
-			$result = it_url::_waitforlockedfile($path, $p);
-
-			# If file could no be fetched by other thread but exists and we are in keepfailed mode then return old file
-			if (!$result && $p['keepfailed'])
-				$result = $fileexists;
-
-		}
-	}
-	else
-	{
-		# Get file from cache
-		EDC('getcache', "cached", $p['url'], $path);
-		$result = true;	# Up to date
-	}
-
-	# Read headers before $path is modified for preprocessing
-	if ($p['returnheaders'])
-		$headers = @include("$path.headers");
-
-	if ($result && $p['preprocess'])
-	{
-		$srcpath = $path;
-		$path .= substr(md5(serialize($p['preprocess'])), 0, 2);
-
-		if ($filemtime = $newfile ? true : it_url::_expired($path, $p['maxage']))	# Outdated(non-zero int) or non-existant(true)?
-		{
-			if ($lock = it_url::_lock($path))
-			{
-				# Touch existing file to prevent locking other getters while refreshing
-				if ($filemtime !== true)
-					touch($path);
-
-				EDC('getcache', "processnew", $p['url'], $path);
-				$dstpath = "$path.preprocesstmp";
-
-				if (is_array($p['preprocess']) && $p['preprocess']['function'])	# Needs is_array as it can be a string where dereferencing gives first character!
-					call_user_func($p['preprocess']['function'], array('in' => $srcpath, 'out' => $dstpath) + $p['preprocess']);
-				else
-					call_user_func($p['preprocess'], $srcpath, $dstpath);
-
-				if (!($result = @filesize($dstpath) && @rename($dstpath, $path)))
-				{
-					@unlink($dstpath);
-					@unlink($path);
-				}
-
-				it_url::_unlock($path, $lock);
-			}
-			else
-			{
-				# Wait for file currently being processed
-				EDC('getcache', "processwait", $p['url'], $path);
-				$result = it_url::_waitforlockedfile($path, $p);
-			}
-		}
-	}
-
-	# cache cleanup at night
-	if ((date('H')*3600 + date('i')*60 < $p['cleanbefore']) && (time()-@filemtime($p['cachedir'] . "/cleaned") > 80000))
-	{
-		touch($p['cachedir'] . "/cleaned");
-		$maxagemin = intval($p['maxage']/60);
-		exec("nohup bash -c 'cd {$p['cachedir']} && sleep 10 && find ?? -mmin +$maxagemin -print0 | xargs -0 -r rm' </dev/null >/dev/null 2>&1 &");
-	}
-
-	EDC('getcache', $result, $path);
-	return $result ? ($p['returnheaders'] ? array($path, $headers) : $path) : false;
-}
-
-/**
- * Fetch a file, cache it and return contents
- * @param see it_url::get_cache
- */
-function get_cache_contents($p)
-{
-	return ($fn = self::get_cache($p)) ? file_get_contents($fn) : ($p['safety'] === 0 ? null : it::error(array('title' => "failed getting " . $p['url'], 'body' => var_export($p, true))));
-}
-
-/**
- * Check whether file at given path is older than maxage
- * @param $path File to check
- * @param $maxage Maximum age of file in seconds
- * @return Not expired: false | Non-existant file: true | Timestamp of expired file
- */
-function _expired($path, $maxage)
-{
-	if ($result = EDC('nocache') ? false : @filemtime($path))
-	{
-		if (time() - $result > $maxage)
-			EDC('getcache', "expired", $path);
-		else
-			$result = false;
-	}
-	else	# File does not exists yet
-		$result = true;
-
-	return $result;
-}
-
-/**
- * Acquire lock for a given file
- * @param $path File to lock
- * @return Lock handle if successfully locked file
- */
-function _lock($path)
-{
-	$force = EDC('nocache') || (($mtime = @filemtime("$path.lock")) && (time() - $mtime > 30)); # expire forgotten locks
-	return @fopen("$path.lock", $force ? "w" : "x");
-}
-
-/**
- * Release lock on a file
- * @param $path File to unlock
- * @param $lock Handle to lock acquird by _lock
- */
-function _unlock($path, $lock)
-{
-	fclose($lock);
-	@unlink("$path.lock");
-}
-
-/**
- * Wait for file which is currently locked
- * @param $path File to wait for
- * @param $p Wait parameters, see @get_cache
- * @return Whether lock was released within timeout and file is still there
- */
-function _waitforlockedfile($path, $p)
-{
-	$sleeptime = 0.1; # seconds to wait per pass
-
-	# wait until cache is ready, then read from cache
-	for ($maxpasses = $p['timeout'] / $sleeptime, $passes = 0; ($lockedbyother = file_exists("$path.lock")) && ($passes < $maxpasses); ++$passes)
-	{
-		usleep($sleeptime * 1000000);
-		clearstatcache();
-	}
-
-	if ($lockedbyother && $p['safety'] == 1)
-		it::error(($passes < $maxpasses ? "error getting url" : "timeout") . " in it_url::get_cache(): url={$p['url']}, passes=$passes, maxpasses=$maxpasses, path={$p['path']}");
-
-	return !$lockedbyother && file_exists($path);
-}
-
-/**
- * Write data to tmp file and atomically rename it to destination
- * @param $path Destination file to write data to
- * @param $data Data to write | true to just touch file
- * @return True if data was written to file
- */
-function _atomicwrite($path, $data)
-{
-	$result = false;
-
-	if ($data === true)	# Not modified, no new data, just update timestamp
-		touch($path);
-	else if ($data !== false)
-	{
-		$tmpname = tempnam(dirname($path), "writetmp");
-		fputs($cachetmp = fopen($tmpname, "w"), $data);
-		fclose($cachetmp);
-		chmod($tmpname, 0664);
-		$result = rename($tmpname, $path);
-	}
-	else
-		@unlink($path);
-
-	return $result;
-}
-
-/**
- * Make an URL absolute by using host an protocol from current Apache request (but not port number)
- * @param $url Optional URL ( foo.html, /foo.html, //host/bar.html, http://host/bar.html ), default self
- * @return absolute version of URL ( http[s]://host/bar.html )
- */
-function absolute($url=null)
-{
-	if (!isset($url))
-		$url = $_SERVER['PHP_SELF'];
-
-	if (!preg_match('/^http/', $url))
-	{
-		if (!preg_match('#//#', $url))
-		{
-			$dir = preg_replace('#/[^/]*$#', '/', $_SERVER['PHP_SELF']);
-			$url = preg_match('#^/#', $url) ? $url : "$dir$url";
-			$url = "//" . $_SERVER['HTTP_HOST'] . ($_SERVER['SERVER_PORT'] == (isset($_SERVER['HTTPS']) ? 443 : 80) ? "" : ":{$_SERVER['SERVER_PORT']}") . $url;
-		}
-		$url = "http" . (isset($_SERVER['HTTPS']) ? 's':'') . ":$url";
-	}
-
-	return $url;
-}
-
-/**
- * Craft a valid redirect URL, send Location: header and terminate execution
- * @param $url  Optional URL ( foo.html, /foo.html, //host/bar.html, http://host/bar.html ), default self
- * @param $type Type of redirect, "temporary" or "permanent", default temporary
- * @return This method never returns.
- */
-function redirect($url = null, $type = "temporary")
-{
-	$codes = array('permanent' => 301, 'temporary' => 303);	# NOTE: HTTP 303 is called "See Other", rather than Temporary (which would be HTTP 307), but is the behaviour one usually wants for temporary redirects
-	if (!($code = $codes[$type]))
-		it::fatal("Invalid redirect type '$type', must be 'permanent' or 'temporary'");
-
-	$url = preg_replace("/[\r\n].*/", '', it_url::absolute($url));	# Security: cut after CR/LF
-	if (EDC('noredir'))
-		echo a(array('href' => $url), Q($url)) . Q(" (HTTP/1.1 $code, $type redirect)") . br() . Q("Trace: " . it_debug::backtrace());
-	else
-		header('Location: ' . it_untaint($url, TC_SELF), true, $code);
-	exit;
-}
-
-/**
- * Urlencode but leave some chars
- */
-function encode($str)
-{
-	return strtr(urlencode($str), array("%2C"=>",", "%28"=>"(", "%29"=>")"));
-}
-
-/**
- * Create GET request from params, optionally only using given fields
- * @param $params Array to take values from, usually $_GET
- * @param $keys Keys to use; default: all
- */
-function params($params, $keys = null)
-{
-	return join("&", it_url::_params($params, $keys));
-}
-
-function _params($params, $keys = null)
-{
-	$result = array();
-
-	if (!isset($keys))
-		$keys = array_keys($params);
-
-	foreach ($keys as $key)
-	{
-		if (is_array($params[$key]))
-		{
-			foreach (it_url::_params($params[$key]) as $value)
-			{
-				if (strlen($value))
-					$result[] = it::replace(array('^([^=\[]*)' => $key . '[$1]'), $value);
-			}
-		}
-		else if (strlen($params[$key]))
-			$result[] = urlencode($key) . "=" . it_url::encode($params[$key]);
-	}
-
-	return $result;
-}
-
-}
-
-?>