friendica/include/text.php

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<?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,$r);
}}
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// random hex string, 64 chars max
if(! function_exists('random_string')) {
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function random_string($size = 64) {
return(substr(hash('sha256',uniqid(rand(),true)),0,$size));
}}
/**
* This is our primary input filter.
*
* The high bit hack only involved some old IE browser, forget which (IE5/Mac?)
* that had an XSS attack vector due to stripping the high-bit on an 8-bit character
* after cleansing, and angle chars with the high bit set could get through as markup.
*
* This is now disabled because it was interfering with some legitimate unicode sequences
* and hopefully there aren't a lot of those browsers left.
*
* Use this on any text input where angle chars are not valid or permitted
* They will be replaced with safer brackets. This may be filtered further
* if these are not allowed either.
*
*/
if(! function_exists('notags')) {
function notags($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(
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array( '&lt;3', '&lt;/3', '&lt;\\3', ':-)', ':)', ';-)', ':-(', ':(', ':-P', ':P', ':-"', ':-x', ':-X', ':-D', '8-|', '8-O',
'~friendika', 'Diaspora*' ),
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-|" />',
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'<img src="' . $a->get_baseurl() . '/images/smiley-surprised.gif" alt="8-O" />',
'<a href="http://project.friendika.com">~friendika <img src="' . $a->get_baseurl() . '/images/friendika-16.png" alt="~friendika" /></a>',
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'<a href="http://joindiaspora.com">Diaspora<img src="' . $a->get_baseurl() . '/images/diaspora.png" alt="Diaspora*" /></a>',
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), $s);
}}
if(! function_exists('day_translate')) {
function day_translate($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;
}}
// Given an item array, convert the body element from bbcode to html and add smilie icons.
// If attach is true, also add icons for item attachments
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;
$icon = '';
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$cnt = preg_match('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" 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 $s;
}}
// Given a text string, convert from bbcode to html and add smilie icons.
if(! function_exists('prepare_text')) {
function prepare_text($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;
}
}}
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function generate_user_guid() {
$found = true;
do {
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$guid = random_string(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,'-_','+/'));
}