breaking up boot file (part of zot refactor)

1 files changed, 933 insertions, 0 deletions

diff --git a/include/text.php b/include/text.php
new file mode 100644
index 000000000..d65c77872
--- /dev/null
+++ b/include/text.php
@@ -0,0 +1,933 @@
+<?php
+
+// This is our template processor.
+// $s is the string requiring macro substitution.
+// $r is an array of key value pairs (search => replace)
+// returns substituted string.
+// WARNING: this is pretty basic, and doesn't properly handle search strings that are substrings of each other.
+// For instance if 'test' => "foo" and 'testing' => "bar", testing could become either bar or fooing, 
+// depending on the order in which they were declared in the array.   
+
+require_once("include/template_processor.php");
+
+if(! function_exists('replace_macros')) {  
+function replace_macros($s,$r) {
+	global $t;
+	
+	return $t->replace($s,$r);
+
+}}
+
+
+// random hash, 64 chars
+
+if(! function_exists('random_string')) {
+function random_string() {
+	return(hash('sha256',uniqid(rand(),true)));
+}}
+
+/**
+ * This is our primary input filter. 
+ *
+ * The high bit hack only involved some old IE browser, forget which (IE5/Mac?)
+ * that had an XSS attack vector due to stripping the high-bit on an 8-bit character
+ * after cleansing, and angle chars with the high bit set could get through as markup.
+ * 
+ * This is now disabled because it was interfering with some legitimate unicode sequences 
+ * and hopefully there aren't a lot of those browsers left. 
+ *
+ * Use this on any text input where angle chars are not valid or permitted
+ * They will be replaced with safer brackets. This may be filtered further
+ * if these are not allowed either.   
+ *
+ */
+
+if(! function_exists('notags')) {
+function notags($string) {
+
+	return(str_replace(array("<",">"), array('[',']'), $string));
+
+//  High-bit filter no longer used
+//	return(str_replace(array("<",">","\xBA","\xBC","\xBE"), array('[',']','','',''), $string));
+}}
+
+// use this on "body" or "content" input where angle chars shouldn't be removed,
+// and allow them to be safely displayed.
+
+if(! function_exists('escape_tags')) {
+function escape_tags($string) {
+
+	return(htmlspecialchars($string));
+}}
+
+
+// generate a string that's random, but usually pronounceable. 
+// used to generate initial passwords
+
+if(! function_exists('autoname')) {
+function autoname($len) {
+
+	$vowels = array('a','a','ai','au','e','e','e','ee','ea','i','ie','o','ou','u'); 
+	if(mt_rand(0,5) == 4)
+		$vowels[] = 'y';
+
+	$cons = array(
+			'b','bl','br',
+			'c','ch','cl','cr',
+			'd','dr',
+			'f','fl','fr',
+			'g','gh','gl','gr',
+			'h',
+			'j',
+			'k','kh','kl','kr',
+			'l',
+			'm',
+			'n',
+			'p','ph','pl','pr',
+			'qu',
+			'r','rh',
+			's','sc','sh','sm','sp','st',
+			't','th','tr',
+			'v',
+			'w','wh',
+			'x',
+			'z','zh'
+			);
+
+	$midcons = array('ck','ct','gn','ld','lf','lm','lt','mb','mm', 'mn','mp',
+				'nd','ng','nk','nt','rn','rp','rt');
+
+	$noend = array('bl', 'br', 'cl','cr','dr','fl','fr','gl','gr',
+				'kh', 'kl','kr','mn','pl','pr','rh','tr','qu','wh');
+
+	$start = mt_rand(0,2);
+  	if($start == 0)
+    		$table = $vowels;
+  	else
+    		$table = $cons;
+
+	$word = '';
+
+	for ($x = 0; $x < $len; $x ++) {
+  		$r = mt_rand(0,count($table) - 1);
+  		$word .= $table[$r];
+  
+  		if($table == $vowels)
+    			$table = array_merge($cons,$midcons);
+  		else
+    			$table = $vowels;
+
+	}
+
+	$word = substr($word,0,$len);
+
+	foreach($noend as $noe) {
+  		if((strlen($word) > 2) && (substr($word,-2) == $noe)) {
+    			$word = substr($word,0,-1);
+    			break;
+  		}
+	}
+	if(substr($word,-1) == 'q')
+		$word = substr($word,0,-1);    
+	return $word;
+}}
+
+
+// escape text ($str) for XML transport
+// returns escaped text.
+
+if(! function_exists('xmlify')) {
+function xmlify($str) {
+	$buffer = '';
+	
+	for($x = 0; $x < strlen($str); $x ++) {
+		$char = $str[$x];
+        
+		switch( $char ) {
+
+			case "\r" :
+				break;
+			case "&" :
+				$buffer .= '&amp;';
+				break;
+			case "'" :
+				$buffer .= '&apos;';
+				break;
+			case "\"" :
+				$buffer .= '&quot;';
+				break;
+			case '<' :
+				$buffer .= '&lt;';
+				break;
+			case '>' :
+				$buffer .= '&gt;';
+				break;
+			case "\n" :
+				$buffer .= "\n";
+				break;
+			default :
+				$buffer .= $char;
+				break;
+		}	
+	}
+	$buffer = trim($buffer);
+	return($buffer);
+}}
+
+// undo an xmlify
+// pass xml escaped text ($s), returns unescaped text
+
+if(! function_exists('unxmlify')) {
+function unxmlify($s) {
+	$ret = str_replace('&amp;','&', $s);
+	$ret = str_replace(array('&lt;','&gt;','&quot;','&apos;'),array('<','>','"',"'"),$ret);
+	return $ret;	
+}}
+
+// convenience wrapper, reverse the operation "bin2hex"
+
+if(! function_exists('hex2bin')) {
+function hex2bin($s) {
+	if(! ctype_xdigit($s)) {
+		logger('hex2bin: illegal input: ' . print_r(debug_backtrace(), true));
+		return($s);
+	}
+
+	return(pack("H*",$s));
+}}
+
+// Automatic pagination.
+// To use, get the count of total items.
+// Then call $a->set_pager_total($number_items);
+// Optionally call $a->set_pager_itemspage($n) to the number of items to display on each page
+// Then call paginate($a) after the end of the display loop to insert the pager block on the page
+// (assuming there are enough items to paginate).
+// When using with SQL, the setting LIMIT %d, %d => $a->pager['start'],$a->pager['itemspage']
+// will limit the results to the correct items for the current page. 
+// The actual page handling is then accomplished at the application layer. 
+
+if(! function_exists('paginate')) {
+function paginate(&$a) {
+	$o = '';
+	$stripped = preg_replace('/(&page=[0-9]*)/','',$a->query_string);
+	$stripped = str_replace('q=','',$stripped);
+	$stripped = trim($stripped,'/');
+	$pagenum = $a->pager['page'];
+	$url = $a->get_baseurl() . '/' . $stripped;
+
+
+	  if($a->pager['total'] > $a->pager['itemspage']) {
+		$o .= '<div class="pager">';
+    		if($a->pager['page'] != 1)
+			$o .= '<span class="pager_prev">'."<a href=\"$url".'&page='.($a->pager['page'] - 1).'">' . t('prev') . '</a></span> ';
+
+		$o .=  "<span class=\"pager_first\"><a href=\"$url"."&page=1\">" . t('first') . "</a></span> ";
+
+    		$numpages = $a->pager['total'] / $a->pager['itemspage'];
+
+			$numstart = 1;
+    		$numstop = $numpages;
+
+    		if($numpages > 14) {
+      			$numstart = (($pagenum > 7) ? ($pagenum - 7) : 1);
+      			$numstop = (($pagenum > ($numpages - 7)) ? $numpages : ($numstart + 14));
+    		}
+   
+		for($i = $numstart; $i <= $numstop; $i++){
+      			if($i == $a->pager['page'])
+				$o .= '<span class="pager_current">'.(($i < 10) ? '&nbsp;'.$i : $i);
+			else
+				$o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? '&nbsp;'.$i : $i)."</a>";
+			$o .= '</span> ';
+		}
+
+		if(($a->pager['total'] % $a->pager['itemspage']) != 0) {
+			if($i == $a->pager['page'])
+				$o .= '<span class="pager_current">'.(($i < 10) ? '&nbsp;'.$i : $i);
+			else
+				$o .= "<span class=\"pager_n\"><a href=\"$url"."&page=$i\">".(($i < 10) ? '&nbsp;'.$i : $i)."</a>";
+			$o .= '</span> ';
+		}
+
+		$lastpage = (($numpages > intval($numpages)) ? intval($numpages)+1 : $numpages);
+		$o .= "<span class=\"pager_last\"><a href=\"$url"."&page=$lastpage\">" . t('last') . "</a></span> ";
+
+    		if(($a->pager['total'] - ($a->pager['itemspage'] * $a->pager['page'])) > 0)
+			$o .= '<span class="pager_next">'."<a href=\"$url"."&page=".($a->pager['page'] + 1).'">' . t('next') . '</a></span>';
+		$o .= '</div>'."\r\n";
+	}
+	return $o;
+}}
+
+// Turn user/group ACLs stored as angle bracketed text into arrays
+
+if(! function_exists('expand_acl')) {
+function expand_acl($s) {
+	// turn string array of angle-bracketed elements into numeric array
+	// e.g. "<1><2><3>" => array(1,2,3);
+	$ret = array();
+
+	if(strlen($s)) {
+		$t = str_replace('<','',$s);
+		$a = explode('>',$t);
+		foreach($a as $aa) {
+			if(intval($aa))
+				$ret[] = intval($aa);
+		}
+	}
+	return $ret;
+}}		
+
+// Used to wrap ACL elements in angle brackets for storage 
+
+if(! function_exists('sanitise_acl')) {
+function sanitise_acl(&$item) {
+	if(intval($item))
+		$item = '<' . intval(notags(trim($item))) . '>';
+	else
+		unset($item);
+}}
+
+
+// Convert an ACL array to a storable string
+
+if(! function_exists('perms2str')) {
+function perms2str($p) {
+	$ret = '';
+	$tmp = $p;
+	if(is_array($tmp)) {
+		array_walk($tmp,'sanitise_acl');
+		$ret = implode('',$tmp);
+	}
+	return $ret;
+}}
+
+// generate a guaranteed unique (for this domain) item ID for ATOM
+// safe from birthday paradox
+
+if(! function_exists('item_new_uri')) {
+function item_new_uri($hostname,$uid) {
+
+	do {
+		$dups = false;
+		$hash = random_string();
+
+		$uri = "urn:X-dfrn:" . $hostname . ':' . $uid . ':' . $hash;
+
+		$r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' LIMIT 1",
+			dbesc($uri));
+		if(count($r))
+			$dups = true;
+	} while($dups == true);
+	return $uri;
+}}
+
+// Generate a guaranteed unique photo ID.
+// safe from birthday paradox
+
+if(! function_exists('photo_new_resource')) {
+function photo_new_resource() {
+
+	do {
+		$found = false;
+		$resource = hash('md5',uniqid(mt_rand(),true));
+		$r = q("SELECT `id` FROM `photo` WHERE `resource-id` = '%s' LIMIT 1",
+			dbesc($resource)
+		);
+		if(count($r))
+			$found = true;
+	} while($found == true);
+	return $resource;
+}}
+
+
+// wrapper to load a view template, checking for alternate
+// languages before falling back to the default
+
+// obsolete, deprecated.
+
+if(! function_exists('load_view_file')) {
+function load_view_file($s) {
+	global $lang, $a;
+	if(! isset($lang))
+		$lang = 'en';
+	$b = basename($s);
+	$d = dirname($s);
+	if(file_exists("$d/$lang/$b"))
+		return file_get_contents("$d/$lang/$b");
+	
+	$theme = current_theme();
+	
+	if(file_exists("$d/theme/$theme/$b"))
+		return file_get_contents("$d/theme/$theme/$b");
+			
+	return file_get_contents($s);
+}}
+
+if(! function_exists('get_intltext_template')) {
+function get_intltext_template($s) {
+	global $lang;
+
+	if(! isset($lang))
+		$lang = 'en';
+
+	if(file_exists("view/$lang/$s"))
+		return file_get_contents("view/$lang/$s");
+	elseif(file_exists("view/en/$s"))
+		return file_get_contents("view/en/$s");
+	else
+		return file_get_contents("view/$s");
+}}
+
+if(! function_exists('get_markup_template')) {
+function get_markup_template($s) {
+
+	$theme = current_theme();
+	
+	if(file_exists("view/theme/$theme/$s"))
+		return file_get_contents("view/theme/$theme/$s");
+	else
+		return file_get_contents("view/$s");
+
+}}
+
+
+
+
+
+// for html,xml parsing - let's say you've got
+// an attribute foobar="class1 class2 class3"
+// and you want to find out if it contains 'class3'.
+// you can't use a normal sub string search because you
+// might match 'notclass3' and a regex to do the job is 
+// possible but a bit complicated. 
+// pass the attribute string as $attr and the attribute you 
+// are looking for as $s - returns true if found, otherwise false
+
+if(! function_exists('attribute_contains')) {
+function attribute_contains($attr,$s) {
+	$a = explode(' ', $attr);
+	if(count($a) && in_array($s,$a))
+		return true;
+	return false;
+}}
+
+if(! function_exists('logger')) {
+function logger($msg,$level = 0) {
+	$debugging = get_config('system','debugging');
+	$loglevel  = intval(get_config('system','loglevel'));
+	$logfile   = get_config('system','logfile');
+
+	if((! $debugging) || (! $logfile) || ($level > $loglevel))
+		return;
+	
+	@file_put_contents($logfile, datetime_convert() . ':' . session_id() . ' ' . $msg . "\n", FILE_APPEND);
+	return;
+}}
+
+
+if(! function_exists('activity_match')) {
+function activity_match($haystack,$needle) {
+	if(($haystack === $needle) || ((basename($needle) === $haystack) && strstr($needle,NAMESPACE_ACTIVITY_SCHEMA)))
+		return true;
+	return false;
+}}
+
+
+// Pull out all #hashtags and @person tags from $s;
+// We also get @person@domain.com - which would make 
+// the regex quite complicated as tags can also
+// end a sentence. So we'll run through our results
+// and strip the period from any tags which end with one.
+// Returns array of tags found, or empty array.
+
+
+if(! function_exists('get_tags')) {
+function get_tags($s) {
+	$ret = array();
+
+	// ignore anything in a code block
+
+	$s = preg_replace('/\[code\](.*?)\[\/code\]/sm','',$s);
+
+	// Match full names against @tags including the space between first and last
+	// We will look these up afterward to see if they are full names or not recognisable.
+
+	if(preg_match_all('/(@[^ \x0D\x0A,:?]+ [^ \x0D\x0A,:?]+)([ \x0D\x0A,:?]|$)/',$s,$match)) {
+		foreach($match[1] as $mtch) {
+			if(strstr($mtch,"]")) {
+				// we might be inside a bbcode color tag - leave it alone
+				continue;
+			}
+			if(substr($mtch,-1,1) === '.')
+				$ret[] = substr($mtch,0,-1);
+			else
+				$ret[] = $mtch;
+		}
+	}
+
+	// Otherwise pull out single word tags. These can be @nickname, @first_last
+	// and #hash tags.
+
+	if(preg_match_all('/([@#][^ \x0D\x0A,:?]+)([ \x0D\x0A,:?]|$)/',$s,$match)) {
+		foreach($match[1] as $mtch) {
+			if(strstr($mtch,"]")) {
+				// we might be inside a bbcode color tag - leave it alone
+				continue;
+			}
+			// ignore strictly numeric tags like #1
+			if((strpos($mtch,'#') === 0) && ctype_digit(substr($mtch,1)))
+				continue;
+			if(substr($mtch,-1,1) === '.')
+				$ret[] = substr($mtch,0,-1);
+			else
+				$ret[] = $mtch;
+		}
+	}
+	return $ret;
+}}
+
+
+// quick and dirty quoted_printable encoding
+
+if(! function_exists('qp')) {
+function qp($s) {
+return str_replace ("%","=",rawurlencode($s));
+}} 
+
+
+
+if(! function_exists('get_mentions')) {
+function get_mentions($item) {
+	$o = '';
+	if(! strlen($item['tag']))
+		return $o;
+
+	$arr = explode(',',$item['tag']);
+	foreach($arr as $x) {
+		$matches = null;
+		if(preg_match('/@\[url=([^\]]*)\]/',$x,$matches)) {
+			$o .= "\t\t" . '<link rel="mentioned" href="' . $matches[1] . '" />' . "\r\n";
+			$o .= "\t\t" . '<link rel="ostatus:attention" href="' . $matches[1] . '" />' . "\r\n";
+		}
+	}
+	return $o;
+}}
+
+if(! function_exists('contact_block')) {
+function contact_block() {
+	$o = '';
+	$a = get_app();
+
+	$shown = get_pconfig($a->profile['uid'],'system','display_friend_count');
+	if(! $shown)
+		$shown = 24;
+
+	if((! is_array($a->profile)) || ($a->profile['hide-friends']))
+		return $o;
+	$r = q("SELECT COUNT(*) AS `total` FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0",
+			intval($a->profile['uid'])
+	);
+	if(count($r)) {
+		$total = intval($r[0]['total']);
+	}
+	if(! $total) {
+		$o .= '<h4 class="contact-h4">' . t('No contacts') . '</h4>';
+		return $o;
+	}
+	$r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 0 AND `blocked` = 0 and `pending` = 0 ORDER BY RAND() LIMIT %d",
+			intval($a->profile['uid']),
+			intval($shown)
+	);
+	if(count($r)) {
+		$o .= '<h4 class="contact-h4">' .  sprintf( tt('%d Contact','%d Contacts', $total),$total) . '</h4><div id="contact-block">';
+		foreach($r as $rr) {
+			$o .= micropro($rr,true,'mpfriend');
+		}
+		$o .= '</div><div id="contact-block-end"></div>';
+		$o .=  '<div id="viewcontacts"><a id="viewcontacts-link" href="viewcontacts/' . $a->profile['nickname'] . '">' . t('View Contacts') . '</a></div>';
+		
+	}
+
+	$arr = array('contacts' => $r, 'output' => $o);
+
+	call_hooks('contact_block_end', $arr);
+	return $o;
+
+}}
+
+if(! function_exists('micropro')) {
+function micropro($contact, $redirect = false, $class = '', $textmode = false) {
+
+	if($class)
+		$class = ' ' . $class;
+
+	$url = $contact['url'];
+	$sparkle = '';
+
+	if($redirect) {
+		$a = get_app();
+		$redirect_url = $a->get_baseurl() . '/redir/' . $contact['id'];
+		if(local_user() && ($contact['uid'] == local_user()) && ($contact['network'] === 'dfrn')) {
+			$url = $redirect_url;
+			$sparkle = ' sparkle';
+		}
+	}
+	$click = ((x($contact,'click')) ? ' onclick="' . $contact['click'] . '" ' : '');
+	if($click)
+		$url = '';
+	if($textmode) {
+		return '<div class="contact-block-textdiv' . $class . '"><a class="contact-block-link' . $class . $sparkle 
+			. (($click) ? ' fakelink' : '') . '" '
+			. (($url) ? ' href="' . $url . '"' : '') . $click
+			. '" title="' . $contact['name'] . ' [' . $contact['url'] . ']" alt="' . $contact['name'] 
+			. '" >'. $contact['name'] . '</a></div>' . "\r\n";
+	}
+	else {
+		return '<div class="contact-block-div' . $class . '"><a class="contact-block-link' . $class . $sparkle 
+			. (($click) ? ' fakelink' : '') . '" '
+			. (($url) ? ' href="' . $url . '"' : '') . $click . ' ><img class="contact-block-img' . $class . $sparkle . '" src="' 
+			. $contact['micro'] . '" title="' . $contact['name'] . ' [' . $contact['url'] . ']" alt="' . $contact['name'] 
+			. '" /></a></div>' . "\r\n";
+	}
+}}
+
+
+
+if(! function_exists('search')) {
+function search($s,$id='search-box',$url='/search') {
+	$a = get_app();
+	$o  = '<div id="' . $id . '">';
+	$o .= '<form action="' . $a->get_baseurl() . $url . '" method="get" >';
+	$o .= '<input type="text" name="search" id="search-text" value="' . $s .'" />';
+	$o .= '<input type="submit" name="submit" id="search-submit" value="' . t('Search') . '" />'; 
+	$o .= '</form></div>';
+	return $o;
+}}
+
+if(! function_exists('valid_email')) {
+function valid_email($x){
+	if(preg_match('/^[_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)+$/',$x))
+		return true;
+	return false;
+}}
+
+
+if(! function_exists('aes_decrypt')) {
+function aes_decrypt($val,$ky)
+{
+    $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
+    for($a=0;$a<strlen($ky);$a++)
+      $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
+    $mode = MCRYPT_MODE_ECB;
+    $enc = MCRYPT_RIJNDAEL_128;
+    $dec = @mcrypt_decrypt($enc, $key, $val, $mode, @mcrypt_create_iv( @mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM ) );
+    return rtrim($dec,(( ord(substr($dec,strlen($dec)-1,1))>=0 and ord(substr($dec, strlen($dec)-1,1))<=16)? chr(ord( substr($dec,strlen($dec)-1,1))):null));
+}}
+
+
+if(! function_exists('aes_encrypt')) {
+function aes_encrypt($val,$ky)
+{
+    $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
+    for($a=0;$a<strlen($ky);$a++)
+      $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
+    $mode=MCRYPT_MODE_ECB;
+    $enc=MCRYPT_RIJNDAEL_128;
+    $val=str_pad($val, (16*(floor(strlen($val) / 16)+(strlen($val) % 16==0?2:1))), chr(16-(strlen($val) % 16)));
+    return mcrypt_encrypt($enc, $key, $val, $mode, mcrypt_create_iv( mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM));
+}} 
+
+
+/**
+ *
+ * Function: linkify
+ *
+ * Replace naked text hyperlink with HTML formatted hyperlink
+ *
+ */
+
+if(! function_exists('linkify')) {
+function linkify($s) {
+	$s = preg_replace("/(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\.\=\_\~\#\'\%\$\!\+]*)/", ' <a href="$1" target="external-link">$1</a>', $s);
+	return($s);
+}}
+
+
+/**
+ * 
+ * Function: smilies
+ *
+ * Description:
+ * Replaces text emoticons with graphical images
+ *
+ * @Parameter: string $s
+ *
+ * Returns string
+ */
+
+if(! function_exists('smilies')) {
+function smilies($s) {
+	$a = get_app();
+
+	return str_replace(
+	array( '&lt;3', '&lt;/3', '&lt;\\3', ':-)', ':)', ';-)', ':-(', ':(', ':-P', ':P', ':-"', ':-x', ':-X', ':-D', '8-|', '8-O'),
+	array(
+		'<img src="' . $a->get_baseurl() . '/images/smiley-heart.gif" alt="<3" />',
+		'<img src="' . $a->get_baseurl() . '/images/smiley-brokenheart.gif" alt="</3" />',
+		'<img src="' . $a->get_baseurl() . '/images/smiley-brokenheart.gif" alt="<\\3" />',
+		'<img src="' . $a->get_baseurl() . '/images/smiley-smile.gif" alt=":-)" />',
+		'<img src="' . $a->get_baseurl() . '/images/smiley-smile.gif" alt=":)" />',
+		'<img src="' . $a->get_baseurl() . '/images/smiley-wink.gif" alt=";-)" />',
+		'<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":-(" />',
+		'<img src="' . $a->get_baseurl() . '/images/smiley-frown.gif" alt=":(" />',
+		'<img src="' . $a->get_baseurl() . '/images/smiley-tongue-out.gif" alt=":-P" />',
+		'<img src="' . $a->get_baseurl() . '/images/smiley-tongue-out.gif" alt=":P" />',
+		'<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-\"" />',
+		'<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-x" />',
+		'<img src="' . $a->get_baseurl() . '/images/smiley-kiss.gif" alt=":-X" />',
+		'<img src="' . $a->get_baseurl() . '/images/smiley-laughing.gif" alt=":-D" />',
+		'<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-|" />',
+		'<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-O" />'
+	), $s);
+}}
+
+
+
+if(! function_exists('day_translate')) {
+function day_translate($s) {
+	$ret = str_replace(array('Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday'),
+		array( t('Monday'), t('Tuesday'), t('Wednesday'), t('Thursday'), t('Friday'), t('Saturday'), t('Sunday')),
+		$s);
+
+	$ret = str_replace(array('January','February','March','April','May','June','July','August','September','October','November','December'),
+		array( t('January'), t('February'), t('March'), t('April'), t('May'), t('June'), t('July'), t('August'), t('September'), t('October'), t('November'), t('December')),
+		$ret);
+
+	return $ret;
+}}
+
+
+if(! function_exists('normalise_link')) {
+function normalise_link($url) {
+	$ret = str_replace(array('https:','//www.'), array('http:','//'), $url);
+	return(rtrim($ret,'/'));
+}}
+
+/**
+ *
+ * Compare two URLs to see if they are the same, but ignore
+ * slight but hopefully insignificant differences such as if one 
+ * is https and the other isn't, or if one is www.something and 
+ * the other isn't - and also ignore case differences.
+ *
+ * Return true if the URLs match, otherwise false.
+ *
+ */
+
+if(! function_exists('link_compare')) {
+function link_compare($a,$b) {
+	if(strcasecmp(normalise_link($a),normalise_link($b)) === 0)
+		return true;
+	return false;
+}}
+
+
+if(! function_exists('prepare_body')) {
+function prepare_body($item,$attach = false) {
+
+	$s = prepare_text($item['body']);
+	if(! $attach)
+		return $s;
+
+	$arr = explode(',',$item['attach']);
+	if(count($arr)) {
+		$s .= '<div class="body-attach">';
+		foreach($arr as $r) {
+			$matches = false;
+			$icon = '';
+			$cnt = preg_match('|\[attach\]href=\"(.*?)\" size=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"\[\/attach\]|',$r,$matches);
+			if($cnt) {
+				$icontype = strtolower(substr($matches[3],0,strpos($matches[3],'/')));
+				switch($icontype) {
+					case 'video':
+					case 'audio':
+					case 'image':
+					case 'text':
+						$icon = '<div class="attachtype type-' . $icontype . '"></div>';
+						break;
+					default:
+						$icon = '<div class="attachtype type-unkn"></div>';
+						break;
+				}
+				$title = ((strlen(trim($matches[4]))) ? escape_tags(trim($matches[4])) : escape_tags($matches[1]));
+				$title .= ' ' . $matches[2] . ' ' . t('bytes');
+
+				$s .= '<a href="' . strip_tags($matches[1]) . '" title="' . $title . '" class="attachlink" target="external-link" >' . $icon . '</a>';
+			}
+		}
+		$s .= '<div class="clear"></div></div>';
+	}
+	return $s;
+}}
+
+if(! function_exists('prepare_text')) {
+function prepare_text($text) {
+
+	require_once('include/bbcode.php');
+
+	$s = smilies(bbcode($text));
+
+	return $s;
+}}
+
+
+/**
+ * return atom link elements for all of our hubs
+ */
+
+if(! function_exists('feed_hublinks')) {
+function feed_hublinks() {
+
+	$hub = get_config('system','huburl');
+
+	$hubxml = '';
+	if(strlen($hub)) {
+		$hubs = explode(',', $hub);
+		if(count($hubs)) {
+			foreach($hubs as $h) {
+				$h = trim($h);
+				if(! strlen($h))
+					continue;
+				$hubxml .= '<link rel="hub" href="' . xmlify($h) . '" />' . "\n" ;
+			}
+		}
+	}
+	return $hubxml;
+}}
+
+/* return atom link elements for salmon endpoints */
+
+if(! function_exists('feed_salmonlinks')) {
+function feed_salmonlinks($nick) {
+
+	$a = get_app();
+
+	$salmon  = '<link rel="salmon" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ;
+
+	// old style links that status.net still needed as of 12/2010 
+
+	$salmon .= '  <link rel="http://salmon-protocol.org/ns/salmon-replies" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ; 
+	$salmon .= '  <link rel="http://salmon-protocol.org/ns/salmon-mention" href="' . xmlify($a->get_baseurl() . '/salmon/' . $nick) . '" />' . "\n" ; 
+	return $salmon;
+}}
+
+if(! function_exists('get_plink')) {
+function get_plink($item) {
+	$a = get_app();	
+	$plink = (((x($item,'plink')) && (! $item['private'])) ? '<div class="wall-item-links-wrapper"><a href="' 
+			. $item['plink'] . '" title="' . t('link to source') . '" target="external-link" class="icon remote-link"></a></div>' : '');
+	return $plink;
+}}
+
+if(! function_exists('unamp')) {
+function unamp($s) {
+	return str_replace('&amp;', '&', $s);
+}}
+
+
+
+
+if(! function_exists('lang_selector')) {
+function lang_selector() {
+	global $lang;
+	$o = '<div id="lang-select-icon" class="icon language" title="' . t('Select an alternate language') . '" onclick="openClose(\'language-selector\');" ></div>';
+	$o .= '<div id="language-selector" style="display: none;" >';
+	$o .= '<form action="" method="post" ><select name="system_language" onchange="this.form.submit();" >';
+	$langs = glob('view/*/strings.php');
+	if(is_array($langs) && count($langs)) {
+		if(! in_array('view/en/strings.php',$langs))
+			$langs[] = 'view/en/';
+		asort($langs);
+		foreach($langs as $l) {
+			$ll = substr($l,5);
+			$ll = substr($ll,0,strrpos($ll,'/'));
+			$selected = (($ll === $lang) ? ' selected="selected" ' : '');
+			$o .= '<option value="' . $ll . '"' . $selected . '>' . $ll . '</option>';
+		}
+	}
+	$o .= '</select></form></div>';
+	return $o;
+}}
+
+
+if(! function_exists('return_bytes')) {
+function return_bytes ($size_str) {
+    switch (substr ($size_str, -1))
+    {
+        case 'M': case 'm': return (int)$size_str * 1048576;
+        case 'K': case 'k': return (int)$size_str * 1024;
+        case 'G': case 'g': return (int)$size_str * 1073741824;
+        default: return $size_str;
+    }
+}}
+
+function generate_guid() {
+	$found = true;
+	do {
+		$guid = substr(random_string(),0,16);
+		$x = q("SELECT `uid` FROM `user` WHERE `guid` = '%s' LIMIT 1",
+			dbesc($guid)
+		);
+		if(! count($x))
+			$found = false;
+	} while ($found == true );
+	return $guid;
+}
+
+
+function pkcs5_pad ($text, $blocksize)
+{
+    $pad = $blocksize - (strlen($text) % $blocksize);
+    return $text . str_repeat(chr($pad), $pad);
+}
+
+function pkcs5_unpad($text)
+{
+    $pad = ord($text{strlen($text)-1});
+    if ($pad > strlen($text)) return false;
+    if (strspn($text, chr($pad), strlen($text) - $pad) != $pad) return false;
+    return substr($text, 0, -1 * $pad);
+} 
+
+
+function base64url_encode($s, $strip_padding = false) {
+
+	$s = strtr(base64_encode($s),'+/','-_');
+
+	if($strip_padding)
+		$s = str_replace('=','',$s);
+
+	return $s;
+}
+
+function base64url_decode($s) {
+
+/*
+ *  // Placeholder for new rev of salmon which strips base64 padding.
+ *  // PHP base64_decode handles the un-padded input without requiring this step
+ *  // Uncomment if you find you need it.
+ *
+ *	$l = strlen($s);
+ *	if(! strpos($s,'=')) {
+ *		$m = $l % 4;
+ *		if($m == 2)
+ *			$s .= '==';
+ *		if($m == 3)
+ *			$s .= '=';
+ *	}
+ *
+ */
+
+	return base64_decode(strtr($s,'-_','+/'));
+}