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 $t;
//$ts = microtime();
$r = $t->replace($s,$r);
//$tt = microtime() - $ts;
//$a = get_app();
//$a->page['debug'] .= "$tt
\n";
return template_unescape($r);
}}
// random string, there are 86 characters max in text mode, 128 for hex
// output is urlsafe
define('RANDOM_STRING_HEX', 0x00 );
define('RANDOM_STRING_TEXT', 0x01 );
if(! function_exists('random_string')) {
function random_string($size = 64,$type = RANDOM_STRING_HEX) {
// generate a bit of entropy and run it through the whirlpool
$s = hash('whirlpool', (string) rand() . uniqid(rand(),true) . (string) rand(),(($type == RANDOM_STRING_TEXT) ? true : false));
$s = (($type == RANDOM_STRING_TEXT) ? str_replace("\n","",base64url_encode($s,true)) : $s);
return(substr($s,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; $x < mb_strlen($str); $x ++) {
$char = $str[$x];
switch( $char ) {
case "\r" :
break;
case "&" :
$buffer .= '&';
break;
case "'" :
$buffer .= ''';
break;
case "\"" :
$buffer .= '"';
break;
case '<' :
$buffer .= '<';
break;
case '>' :
$buffer .= '>';
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('&','&', $s);
$ret = str_replace(array('<','>','"','''),array('<','>','"',"'"),$ret);
return $ret;
}}
// convenience wrapper, reverse the operation "bin2hex"
if(! function_exists('hex2bin')) {
function hex2bin($s) {
if(! (is_string($s) && strlen($s)))
return '';
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']) {
$o .= '
(.*?)<\/pre>/ism','smile_encode',$s);
$s = preg_replace_callback('/(.*?)<\/code>/ism','smile_encode',$s);
$texts = array(
'<3',
'</3',
'<\\3',
':-)',
';-)',
':-(',
':-P',
':-"',
':-"',
':-x',
':-X',
':-D',
'8-|',
'8-O',
':-O',
'\\o/',
'o.O',
'O.o',
":'(",
":-!",
":-/",
":-[",
"8-)",
':beer',
':homebrew',
':coffee',
':facepalm',
':headdesk',
'~friendika',
'~friendica',
);
$icons = array(
'',
'',
'',
'',
'',
'',
'',
'',
'',
'',
'',
'',
'',
'',
'',
'',
'',
'',
'',
'',
'',
'',
'',
'',
'',
'',
'',
'~friendika ',
'~friendica ',
);
$params = array('texts' => $texts, 'icons' => $icons, 'string' => $s);
call_hooks('smilie', $params);
if($sample) {
$s = '';
for($x = 0; $x < count($params['texts']); $x ++) {
$s .= '- ' . $params['texts'][$x] . '
- ' . $params['icons'][$x] . '
';
}
}
else {
$params['string'] = preg_replace_callback('/<(3+)/','preg_heart',$params['string']);
$s = str_replace($params['texts'],$params['icons'],$params['string']);
}
$s = preg_replace_callback('/(.*?)<\/pre>/ism','smile_decode',$s);
$s = preg_replace_callback('/(.*?)<\/code>/ism','smile_decode',$s);
return $s;
}}
function smile_encode($m) {
return(str_replace($m[1],base64url_encode($m[1]),$m[0]));
}
function smile_decode($m) {
return(str_replace($m[1],base64url_decode($m[1]),$m[0]));
}
// expand <3333 to the correct number of hearts
function preg_heart($x) {
$a = get_app();
if(strlen($x[1]) == 1)
return $x[0];
$t = '';
for($cnt = 0; $cnt < strlen($x[1]); $cnt ++)
$t .= '';
$r = str_replace($x[0],$t,$x[0]);
return $r;
}
if(! function_exists('day_translate')) {
function day_translate($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) {
$a = get_app();
call_hooks('prepare_body_init', $item);
$cache = get_config('system','itemcache');
if (($cache != '')) {
$cachefile = $cache."/".$item["guid"]."-".strtotime($item["edited"])."-".hash("crc32", $item['body']);
if (file_exists($cachefile))
$s = file_get_contents($cachefile);
else {
$s = prepare_text($item['body']);
file_put_contents($cachefile, $s);
}
} else
$s = prepare_text($item['body']);
$prep_arr = array('item' => $item, 'html' => $s);
call_hooks('prepare_body', $prep_arr);
$s = $prep_arr['html'];
if(! $attach) {
return $s;
}
$arr = explode(',',$item['attach']);
if(count($arr)) {
$s .= '';
foreach($arr as $r) {
$matches = false;
$icon = '';
$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 = '';
break;
default:
$icon = '';
break;
}
$title = ((strlen(trim($matches[4]))) ? escape_tags(trim($matches[4])) : escape_tags($matches[1]));
$title .= ' ' . $matches[2] . ' ' . t('bytes');
$s .= '' . $icon . '';
}
}
$s .= '';
}
$matches = false;
$cnt = preg_match_all('/<(.*?)>/',$item['file'],$matches,PREG_SET_ORDER);
if($cnt) {
// logger('prepare_text: categories: ' . print_r($matches,true), LOGGER_DEBUG);
foreach($matches as $mtch) {
if(strlen($x))
$x .= ',';
$x .= file_tag_decode($mtch[1]);
}
if(strlen($x))
$s .= ' ';
}
$matches = false;
$x = '';
$cnt = preg_match_all('/\[(.*?)\]/',$item['file'],$matches,PREG_SET_ORDER);
if($cnt) {
// logger('prepare_text: filed_under: ' . print_r($matches,true), LOGGER_DEBUG);
foreach($matches as $mtch) {
if(strlen($x))
$x .= ' ';
$x .= file_tag_decode($mtch[1]). ' ' . t('[remove]') . '';
}
if(strlen($x) && (local_user() == $item['uid']))
$s .= ' ';
}
$prep_arr = array('item' => $item, 'html' => $s);
call_hooks('prepare_body_final', $prep_arr);
return $prep_arr['html'];
}}
// Given a text string, convert from bbcode to html and add smilie icons.
if(! function_exists('prepare_text')) {
function prepare_text($text) {
require_once('include/bbcode.php');
if(stristr($text,'[nosmile]'))
$s = bbcode($text);
else
$s = smilies(bbcode($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 .= '' . "\n" ;
}
}
}
return $hubxml;
}}
/* return atom link elements for salmon endpoints */
if(! function_exists('feed_salmonlinks')) {
function feed_salmonlinks($nick) {
$a = get_app();
$salmon = '' . "\n" ;
// old style links that status.net still needed as of 12/2010
$salmon .= ' ' . "\n" ;
$salmon .= ' ' . "\n" ;
return $salmon;
}}
if(! function_exists('get_plink')) {
function get_plink($item) {
$a = get_app();
if (x($item,'plink') && (! $item['private'])){
return array(
'href' => $item['plink'],
'title' => t('link to source'),
);
} else {
return false;
}
}}
if(! function_exists('unamp')) {
function unamp($s) {
return str_replace('&', '&', $s);
}}
if(! function_exists('lang_selector')) {
function lang_selector() {
global $lang;
$o = '';
$o .= ' ';
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_user_guid() {
$found = true;
do {
$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 $guid;
}
function base64url_encode($s, $strip_padding = false) {
$s = strtr(base64_encode($s),'+/','-_');
if($strip_padding)
$s = str_replace('=','',$s);
return $s;
}
function base64url_decode($s) {
if(is_array($s)) {
logger('base64url_decode: illegal input: ' . print_r(debug_backtrace(), true));
return $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,'-_','+/'));
}
if (!function_exists('str_getcsv')) {
function str_getcsv($input, $delimiter = ',', $enclosure = '"', $escape = '\\', $eol = '\n') {
if (is_string($input) && !empty($input)) {
$output = array();
$tmp = preg_split("/".$eol."/",$input);
if (is_array($tmp) && !empty($tmp)) {
while (list($line_num, $line) = each($tmp)) {
if (preg_match("/".$escape.$enclosure."/",$line)) {
while ($strlen = strlen($line)) {
$pos_delimiter = strpos($line,$delimiter);
$pos_enclosure_start = strpos($line,$enclosure);
if (
is_int($pos_delimiter) && is_int($pos_enclosure_start)
&& ($pos_enclosure_start < $pos_delimiter)
) {
$enclosed_str = substr($line,1);
$pos_enclosure_end = strpos($enclosed_str,$enclosure);
$enclosed_str = substr($enclosed_str,0,$pos_enclosure_end);
$output[$line_num][] = $enclosed_str;
$offset = $pos_enclosure_end+3;
} else {
if (empty($pos_delimiter) && empty($pos_enclosure_start)) {
$output[$line_num][] = substr($line,0);
$offset = strlen($line);
} else {
$output[$line_num][] = substr($line,0,$pos_delimiter);
$offset = (
!empty($pos_enclosure_start)
&& ($pos_enclosure_start < $pos_delimiter)
)
?$pos_enclosure_start
:$pos_delimiter+1;
}
}
$line = substr($line,$offset);
}
} else {
$line = preg_split("/".$delimiter."/",$line);
/*
* Validating against pesky extra line breaks creating false rows.
*/
if (is_array($line) && !empty($line[0])) {
$output[$line_num] = $line;
}
}
}
return $output;
} else {
return false;
}
} else {
return false;
}
}
}
function cleardiv() {
return '';
}
function bb_translate_video($s) {
$matches = null;
$r = preg_match_all("/\[video\](.*?)\[\/video\]/ism",$s,$matches,PREG_SET_ORDER);
if($r) {
foreach($matches as $mtch) {
if((stristr($mtch[1],'youtube')) || (stristr($mtch[1],'youtu.be')))
$s = str_replace($mtch[0],'[youtube]' . $mtch[1] . '[/youtube]',$s);
elseif(stristr($mtch[1],'vimeo'))
$s = str_replace($mtch[0],'[vimeo]' . $mtch[1] . '[/vimeo]',$s);
}
}
return $s;
}
function html2bb_video($s) {
$s = preg_replace('##ism',
'[youtube]$2[/youtube]', $s);
$s = preg_replace('##ism',
'[youtube]$2[/youtube]', $s);
$s = preg_replace('##ism',
'[vimeo]$2[/vimeo]', $s);
return $s;
}
/**
* apply xmlify() to all values of array $val, recursively
*/
function array_xmlify($val){
if (is_bool($val)) return $val?"true":"false";
if (is_array($val)) return array_map('array_xmlify', $val);
return xmlify((string) $val);
}
function reltoabs($text, $base)
{
if (empty($base))
return $text;
$base = rtrim($base,'/');
$base2 = $base . "/";
// Replace links
$pattern = "/]*) href=\"(?!http|https|\/)([^\"]*)\"/";
$replace = "]*) href=\"(?!http|https)([^\"]*)\"/";
$replace = "]*) src=\"(?!http|https|\/)([^\"]*)\"/";
$replace = "]*) src=\"(?!http|https)([^\"]*)\"/";
$replace = "','[',']'),array('%3c','%3e','%5b','%5d'),$s);
}
function file_tag_decode($s) {
return str_replace(array('%3c','%3e','%5b','%5d'),array('<','>','[',']'),$s);
}
function file_tag_file_query($table,$s,$type = 'file') {
if($type == 'file')
$str = preg_quote( '[' . file_tag_encode($s) . ']' );
else
$str = preg_quote( '<' . file_tag_encode($s) . '>' );
return " AND " . (($table) ? dbesc($table) . '.' : '') . "file regexp '" . dbesc($str) . "' ";
}
function file_tag_save_file($uid,$item,$file) {
$result = false;
if(! intval($uid))
return false;
$r = q("select file from item where id = %d and uid = %d limit 1",
intval($item),
intval($uid)
);
if(count($r)) {
if(! stristr($r[0]['file'],'[' . file_tag_encode($file) . ']'))
q("update item set file = '%s' where id = %d and uid = %d limit 1",
dbesc($r[0]['file'] . '[' . file_tag_encode($file) . ']'),
intval($item),
intval($uid)
);
$saved = get_pconfig($uid,'system','filetags');
if((! strlen($saved)) || (! stristr($saved,'[' . file_tag_encode($file) . ']')))
set_pconfig($uid,'system','filetags',$saved . '[' . file_tag_encode($file) . ']');
}
return true;
}
function file_tag_unsave_file($uid,$item,$file) {
$result = false;
if(! intval($uid))
return false;
$pattern = '[' . file_tag_encode($file) . ']' ;
$r = q("select file from item where id = %d and uid = %d limit 1",
intval($item),
intval($uid)
);
if(! count($r))
return false;
q("update item set file = '%s' where id = %d and uid = %d limit 1",
dbesc(str_replace($pattern,'',$r[0]['file'])),
intval($item),
intval($uid)
);
$r = q("select file from item where uid = %d " . file_tag_file_query('item',$file),
intval($uid)
);
if(! count($r)) {
$saved = get_pconfig($uid,'system','filetags');
set_pconfig($uid,'system','filetags',str_replace($pattern,'',$saved));
}
return true;
}
function normalise_openid($s) {
return trim(str_replace(array('http://','https://'),array('',''),$s),'/');
}