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hubzilla_ynh/sources/include/text.php

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PHP

<?php
/**
* @file include/text.php
*/
require_once("include/bbcode.php");
require_once('include/hubloc.php');
// 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 );
/**
* @brief This is our template processor.
*
* @param string|SmartyEngine $s the string requiring macro substitution,
* or an instance of SmartyEngine
* @param array $r key value pairs (search => replace)
*
* @return string substituted string
*/
function replace_macros($s, $r) {
$arr = array('template' => $s, 'params' => $r);
call_hooks('replace_macros', $arr);
$t = App::template_engine();
$output = $t->replace_macros($arr['template'],$arr['params']);
return $output;
}
/**
* @brief Generates a random string.
*
* @param number $size
* @param int $type
*
* @return string
*/
function random_string($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));
}
/**
* @brief 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.
*
* @param string $string Input string
*
* @return string Filtered string
*/
function notags($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.
*
* @param string $string
*
* @return string
*/
function escape_tags($string) {
return(htmlspecialchars($string, ENT_COMPAT, 'UTF-8', false));
}
function z_input_filter($channel_id,$s,$type = 'text/bbcode') {
if($type === 'text/bbcode')
return escape_tags($s);
if($type === 'text/markdown')
return escape_tags($s);
if($type == 'text/plain')
return escape_tags($s);
if($type == 'application/x-pdl')
return escape_tags($s);
if(App::$is_sys) {
return $s;
}
$r = q("select account_id, account_roles, channel_pageflags from account left join channel on channel_account_id = account_id where channel_id = %d limit 1",
intval($channel_id)
);
if($r) {
if(($r[0]['account_roles'] & ACCOUNT_ROLE_ALLOWCODE) || ($r[0]['channel_pageflags'] & PAGE_ALLOWCODE)) {
if(local_channel() && (get_account_id() == $r[0]['account_id'])) {
return $s;
}
}
}
if($type === 'text/html')
return purify_html($s);
return escape_tags($s);
}
function purify_html($s, $allow_position = false) {
require_once('library/HTMLPurifier.auto.php');
require_once('include/html2bbcode.php');
/**
* @FIXME this function has html output, not bbcode - so safely purify these
* $s = html2bb_video($s);
* $s = oembed_html2bbcode($s);
*/
$config = HTMLPurifier_Config::createDefault();
$config->set('Cache.DefinitionImpl', null);
$config->set('Attr.EnableID', true);
//Allow some custom data- attributes used by built-in libs.
//In this way members which do not have allowcode set can still use the built-in js libs in webpages to some extent.
$def = $config->getHTMLDefinition(true);
//data- attributes used by the foundation library
// f6 navigation
//dropdown menu
$def->info_global_attr['data-dropdown-menu'] = new HTMLPurifier_AttrDef_Text;
//drilldown menu
$def->info_global_attr['data-drilldown'] = new HTMLPurifier_AttrDef_Text;
//accordion menu
$def->info_global_attr['data-accordion-menu'] = new HTMLPurifier_AttrDef_Text;
//responsive navigation
$def->info_global_attr['data-responsive-menu'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-responsive-toggle'] = new HTMLPurifier_AttrDef_Text;
//magellan
$def->info_global_attr['data-magellan'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-magellan-target'] = new HTMLPurifier_AttrDef_Text;
// f6 containers
//accordion
$def->info_global_attr['data-accordion'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-accordion-item'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-tab-content'] = new HTMLPurifier_AttrDef_Text;
//dropdown
$def->info_global_attr['data-dropdown'] = new HTMLPurifier_AttrDef_Text;
//off-canvas
$def->info_global_attr['data-off-canvas-wrapper'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-off-canvas'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-off-canvas-content'] = new HTMLPurifier_AttrDef_Text;
//reveal
$def->info_global_attr['data-reveal'] = new HTMLPurifier_AttrDef_Text;
//tabs
$def->info_global_attr['data-tabs'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-tabs-content'] = new HTMLPurifier_AttrDef_Text;
// f6 media
//orbit
$def->info_global_attr['data-orbit'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-slide'] = new HTMLPurifier_AttrDef_Text;
//tooltip
$def->info_global_attr['data-tooltip'] = new HTMLPurifier_AttrDef_Text;
// f6 plugins
//abide - the use is pointless since we can't do anything with forms
//equalizer
$def->info_global_attr['data-equalizer'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-equalizer-watch'] = new HTMLPurifier_AttrDef_Text;
//interchange - potentially dangerous since it can load content
//toggler
$def->info_global_attr['data-toggler'] = new HTMLPurifier_AttrDef_Text;
//sticky
$def->info_global_attr['data-sticky'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-sticky-container'] = new HTMLPurifier_AttrDef_Text;
// f6 common
$def->info_global_attr['data-options'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-toggle'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-close'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-open'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-position'] = new HTMLPurifier_AttrDef_Text;
//data- attributes used by the bootstrap library
$def->info_global_attr['data-dismiss'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-target'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-toggle'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-backdrop'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-keyboard'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-show'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-spy'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-offset'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-animation'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-container'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-delay'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-placement'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-title'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-trigger'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-content'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-trigger'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-parent'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-ride'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-slide-to'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-slide'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-interval'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-pause'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-wrap'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-offset-top'] = new HTMLPurifier_AttrDef_Text;
$def->info_global_attr['data-offset-bottom'] = new HTMLPurifier_AttrDef_Text;
//some html5 elements
//Block
$def->addElement('section', 'Block', 'Flow', 'Common');
$def->addElement('nav', 'Block', 'Flow', 'Common');
$def->addElement('article', 'Block', 'Flow', 'Common');
$def->addElement('aside', 'Block', 'Flow', 'Common');
$def->addElement('header', 'Block', 'Flow', 'Common');
$def->addElement('footer', 'Block', 'Flow', 'Common');
//Inline
$def->addElement('button', 'Inline', 'Inline', 'Common');
if($allow_position) {
$cssDefinition = $config->getCSSDefinition();
$cssDefinition->info['position'] = new HTMLPurifier_AttrDef_Enum(array('absolute', 'fixed', 'relative', 'static', 'inherit'), false);
$cssDefinition->info['left'] = new HTMLPurifier_AttrDef_CSS_Composite(array(
new HTMLPurifier_AttrDef_CSS_Length(),
new HTMLPurifier_AttrDef_CSS_Percentage()
));
$cssDefinition->info['right'] = new HTMLPurifier_AttrDef_CSS_Composite(array(
new HTMLPurifier_AttrDef_CSS_Length(),
new HTMLPurifier_AttrDef_CSS_Percentage()
));
$cssDefinition->info['top'] = new HTMLPurifier_AttrDef_CSS_Composite(array(
new HTMLPurifier_AttrDef_CSS_Length(),
new HTMLPurifier_AttrDef_CSS_Percentage()
));
$cssDefinition->info['bottom'] = new HTMLPurifier_AttrDef_CSS_Composite(array(
new HTMLPurifier_AttrDef_CSS_Length(),
new HTMLPurifier_AttrDef_CSS_Percentage()
));
}
$purifier = new HTMLPurifier($config);
return $purifier->purify($s);
}
/**
* @brief generate a string that's random, but usually pronounceable.
*
* Used to generate initial passwords.
*
* @param int $len
* @return string
*/
function autoname($len) {
if ($len <= 0)
return '';
$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 $word;
}
/**
* @brief escape text ($str) for XML transport
*
* @param string $str
* @return string Escaped text.
*/
function xmlify($str) {
$buffer = '';
if(is_array($str)) {
// allow to fall through so we ge a PHP error, as the log statement will
// probably get lost in the noise unless we're specifically looking for it.
btlogger('xmlify called with array: ' . print_r($str,true), LOGGER_NORMAL, LOG_WARNING);
}
$len = mb_strlen($str);
for($x = 0; $x < $len; $x ++) {
$char = mb_substr($str,$x,1);
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($buffer);
}
/**
* @brief Undo an xmlify.
*
* Pass xml escaped text ($s), returns unescaped text.
*
* @param string $s
*
* @return string
*/
function unxmlify($s) {
$ret = str_replace('&amp;', '&', $s);
$ret = str_replace(array('&lt;', '&gt;', '&quot;', '&apos;'), array('<', '>', '"', "'"), $ret);
return $ret;
}
/**
* @brief Automatic pagination.
*
* To use, get the count of total items.
* Then call App::set_pager_total($number_items);
* Optionally call App::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 => App::$pager['start'],App::$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.
*
* @param App &$a
*/
function paginate(&$a) {
$o = '';
$stripped = preg_replace('/(&page=[0-9]*)/','',App::$query_string);
// $stripped = preg_replace('/&zid=(.*?)([\?&]|$)/ism','',$stripped);
$stripped = str_replace('q=','',$stripped);
$stripped = trim($stripped,'/');
$pagenum = App::$pager['page'];
$url = z_root() . '/' . $stripped;
if(App::$pager['total'] > App::$pager['itemspage']) {
$o .= '<div class="pager">';
if(App::$pager['page'] != 1)
$o .= '<span class="pager_prev">'."<a href=\"$url".'&page='.(App::$pager['page'] - 1).'">' . t('prev') . '</a></span> ';
$o .= "<span class=\"pager_first\"><a href=\"$url"."&page=1\">" . t('first') . "</a></span> ";
$numpages = App::$pager['total'] / App::$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 == App::$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>";
$o .= '</span> ';
}
if((App::$pager['total'] % App::$pager['itemspage']) != 0) {
if($i == App::$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=$lastpage\">" . t('last') . "</a></span> ";
if((App::$pager['total'] - (App::$pager['itemspage'] * App::$pager['page'])) > 0)
$o .= '<span class="pager_next">'."<a href=\"$url"."&page=".(App::$pager['page'] + 1).'">' . t('next') . '</a></span>';
$o .= '</div>'."\r\n";
}
return $o;
}
function alt_pager(&$a, $i, $more = '', $less = '') {
if(! $more)
$more = t('older');
if(! $less)
$less = t('newer');
$stripped = preg_replace('/(&page=[0-9]*)/','',App::$query_string);
$stripped = str_replace('q=','',$stripped);
$stripped = trim($stripped,'/');
//$pagenum = App::$pager['page'];
$url = z_root() . '/' . $stripped;
return replace_macros(get_markup_template('alt_pager.tpl'), array(
'$has_less' => ((App::$pager['page'] > 1) ? true : false),
'$has_more' => (($i > 0 && $i >= App::$pager['itemspage']) ? true : false),
'$less' => $less,
'$more' => $more,
'$url' => $url,
'$prevpage' => App::$pager['page'] - 1,
'$nextpage' => App::$pager['page'] + 1,
));
}
/**
* @brief Generate a guaranteed unique (for this domain) item ID for ATOM.
*
* Safe from birthday paradox.
*
* @return string a unique id
*/
function item_message_id() {
do {
$dups = false;
$hash = random_string();
$mid = $hash . '@' . App::get_hostname();
$r = q("SELECT id FROM item WHERE mid = '%s' LIMIT 1",
dbesc($mid));
if(count($r))
$dups = true;
} while($dups == true);
return $mid;
}
/**
* @brief Generate a guaranteed unique photo ID.
*
* Safe from birthday paradox.
*
* @return string a uniqe hash
*/
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;
}
/**
* @brief
*
* 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
*
* @param string $attr attribute string
* @param string $s attribute you are looking for
* @return boolean true if found
*/
function attribute_contains($attr, $s) {
$a = explode(' ', $attr);
if(count($a) && in_array($s, $a))
return true;
return false;
}
/**
* @brief Logging function for Hubzilla.
*
* Logging output is configured through Hubzilla's system config. The log file
* is set in system logfile, log level in system loglevel and to enable logging
* set system debugging.
*
* Available constants for log level are LOGGER_NORMAL, LOGGER_TRACE, LOGGER_DEBUG,
* LOGGER_DATA and LOGGER_ALL.
*
* Since PHP5.4 we get the file, function and line automatically where the logger
* was called, so no need to add it to the message anymore.
*
* @param string $msg Message to log
* @param int $level A log level
* @param int $priority - compatible with syslog
*/
function logger($msg, $level = LOGGER_NORMAL, $priority = LOG_INFO) {
if(App::$module == 'setup' && is_writable('install.log')) {
$debugging = true;
$logfile = 'install.log';
$loglevel = LOGGER_ALL;
}
else {
$debugging = get_config('system', 'debugging');
$loglevel = intval(get_config('system', 'loglevel'));
$logfile = get_config('system', 'logfile');
}
if((! $debugging) || (! $logfile) || ($level > $loglevel))
return;
$where = '';
// We require > 5.4 but leave the version check so that install issues (including version) can be logged
if(version_compare(PHP_VERSION, '5.4.0') >= 0) {
$stack = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 2);
$where = basename($stack[0]['file']) . ':' . $stack[0]['line'] . ':' . $stack[1]['function'] . ': ';
}
$s = datetime_convert() . ':' . log_priority_str($priority) . ':' . session_id() . ':' . $where . $msg . PHP_EOL;
$pluginfo = array('filename' => $logfile, 'loglevel' => $level, 'message' => $s,'priority' => $priority, 'logged' => false);
if(! (App::$module == 'setup'))
call_hooks('logger',$pluginfo);
if(! $pluginfo['logged'])
@file_put_contents($pluginfo['filename'], $pluginfo['message'], FILE_APPEND);
}
/**
* @brief like logger() but with a function backtrace to pinpoint certain classes
* of problems which show up deep in the calling stack.
*
* @param string $msg Message to log
* @param int $level A log level
* @param int $priority - compatible with syslog
*/
function btlogger($msg, $level = LOGGER_NORMAL, $priority = LOG_INFO) {
logger($msg, $level, $priority);
if(version_compare(PHP_VERSION, '5.4.0') >= 0) {
$stack = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
if($stack) {
for($x = 1; $x < count($stack); $x ++) {
logger('stack: ' . basename($stack[$x]['file']) . ':' . $stack[$x]['line'] . ':' . $stack[$x]['function'] . '()',$level, $priority);
}
}
}
}
function log_priority_str($priority) {
$parr = array(
LOG_EMERG => 'LOG_EMERG',
LOG_ALERT => 'LOG_ALERT',
LOG_CRIT => 'LOG_CRIT',
LOG_ERR => 'LOG_ERR',
LOG_WARNING => 'LOG_WARNING',
LOG_NOTICE => 'LOG_NOTICE',
LOG_INFO => 'LOG_INFO',
LOG_DEBUG => 'LOG_DEBUG'
);
if($parr[$priority])
return $parr[$priority];
return 'LOG_UNDEFINED';
}
/**
* @brief This is a special logging facility for developers.
*
* It allows one to target specific things to trace/debug and is identical to
* logger() with the exception of the log filename. This allows one to isolate
* specific calls while allowing logger() to paint a bigger picture of overall
* activity and capture more detail.
*
* If you find dlogger() calls in checked in code, you are free to remove them -
* so as to provide a noise-free development environment which responds to events
* you are targetting personally.
*
* @param string $msg Message to log
* @param int $level A log level.
*/
function dlogger($msg, $level = 0) {
// turn off logger in install mode
if(App::$module == 'setup')
return;
$debugging = get_config('system','debugging');
$loglevel = intval(get_config('system','loglevel'));
$logfile = get_config('system','dlogfile');
if((! $debugging) || (! $logfile) || ($level > $loglevel))
return;
$where = '';
if(version_compare(PHP_VERSION, '5.4.0') >= 0) {
$stack = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 2);
$where = basename($stack[0]['file']) . ':' . $stack[0]['line'] . ':' . $stack[1]['function'] . ': ';
}
@file_put_contents($logfile, datetime_convert() . ':' . session_id() . ' ' . $where . $msg . PHP_EOL, FILE_APPEND);
}
function profiler($t1,$t2,$label) {
if(file_exists('profiler.out') && $t1 && t2)
@file_put_contents('profiler.out', sprintf('%01.4f %s',$t2 - $t1,$label) . PHP_EOL, FILE_APPEND);
}
function activity_match($haystack,$needle) {
if(($haystack === $needle) || ((basename($needle) === $haystack) && strstr($needle,NAMESPACE_ACTIVITY_SCHEMA)))
return true;
return false;
}
/**
* @brief 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.
*
* @param string $s
* @return Returns array of tags found, or empty array.
*/
function get_tags($s) {
$ret = array();
$match = array();
// ignore anything in a code block
$s = preg_replace('/\[code(.*?)\](.*?)\[\/code\]/sm','',$s);
// ignore anything in [style= ]
$s = preg_replace('/\[style=(.*?)\]/sm','',$s);
// ignore anything in [color= ], because it may contain color codes which are mistaken for tags
$s = preg_replace('/\[color=(.*?)\]/sm','',$s);
// match any double quoted tags
if(preg_match_all('/([@#]\&quot\;.*?\&quot\;)/',$s,$match)) {
foreach($match[1] as $mtch) {
$ret[] = $mtch;
}
}
// 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.
// The lookbehind is used to prevent a match in the middle of a word
// '=' needs to be avoided because when the replacement is made (in handle_tag()) it has to be ignored there
// Feel free to allow '=' if the issue with '=' is solved in handle_tag()
// added / ? and [ to avoid issues with hashchars in url paths
// added ; to single word tags to allow emojis and other unicode character constructs in bbcode
// (this would actually be &#xnnnnn; but the ampersand will have been escaped to &amp; by the time we see it.)
if(preg_match_all('/(?<![a-zA-Z0-9=\/\?])(@[^ \x0D\x0A,:?\[]+ [^ \x0D\x0A@,:?\[]+)/',$s,$match)) {
foreach($match[1] as $mtch) {
if(substr($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('/(?<![a-zA-Z0-9=\/\?\;])([@#][^ \x0D\x0A,;:?\[]+)/',$s,$match)) {
foreach($match[1] as $mtch) {
if(substr($mtch,-1,1) === '.')
$mtch = substr($mtch,0,-1);
// ignore strictly numeric tags like #1 or #^ bookmarks or ## double hash
if((strpos($mtch,'#') === 0) && ( ctype_digit(substr($mtch,1)) || substr($mtch,1,1) === '^') || substr($mtch,1,1) === '#')
continue;
// or quote remnants from the quoted strings we already picked out earlier
if(strpos($mtch,'&quot'))
continue;
$ret[] = $mtch;
}
}
// bookmarks
if(preg_match_all('/#\^\[(url|zrl)(.*?)\](.*?)\[\/(url|zrl)\]/',$s,$match,PREG_SET_ORDER)) {
foreach($match as $mtch) {
$ret[] = $mtch[0];
}
}
// make sure the longer tags are returned first so that if two or more have common substrings
// we'll replace the longest ones first. Otherwise the common substring would be found in
// both strings and the string replacement would link both to the shorter strings and
// fail to link the longer string. Hubzilla github issue #378
usort($ret,'tag_sort_length');
// logger('get_tags: ' . print_r($ret,true));
return $ret;
}
function tag_sort_length($a,$b) {
if(mb_strlen($a) == mb_strlen($b))
return 0;
return((mb_strlen($b) < mb_strlen($a)) ? (-1) : 1);
}
/**
* @brief Quick and dirty quoted_printable encoding.
*
* @param string $s
* @return string
*/
function qp($s) {
return str_replace ("%", "=", rawurlencode($s));
}
function get_mentions($item,$tags) {
$o = '';
if(! count($tags))
return $o;
foreach($tags as $x) {
if($x['ttype'] == TERM_MENTION) {
$o .= "\t\t" . '<link rel="mentioned" href="' . $x['url'] . '" />' . "\r\n";
$o .= "\t\t" . '<link rel="ostatus:attention" href="' . $x['url'] . '" />' . "\r\n";
}
}
return $o;
}
function contact_block() {
$o = '';
if(! App::$profile['uid'])
return;
if(! perm_is_allowed(App::$profile['uid'],get_observer_hash(),'view_contacts'))
return;
$shown = get_pconfig(App::$profile['uid'],'system','display_friend_count');
if($shown === false)
$shown = 25;
if($shown == 0)
return;
$is_owner = ((local_channel() && local_channel() == App::$profile['uid']) ? true : false);
$sql_extra = '';
$abook_flags = " and abook_pending = 0 and abook_self = 0 ";
if(! $is_owner) {
$abook_flags .= " and abook_hidden = 0 ";
$sql_extra = " and xchan_hidden = 0 ";
}
if((! is_array(App::$profile)) || (App::$profile['hide_friends']))
return $o;
$r = q("SELECT COUNT(abook_id) AS total FROM abook left join xchan on abook_xchan = xchan_hash WHERE abook_channel = %d
$abook_flags and xchan_orphan = 0 and xchan_deleted = 0 $sql_extra",
intval(App::$profile['uid'])
);
if(count($r)) {
$total = intval($r[0]['total']);
}
if(! $total) {
$contacts = t('No connections');
$micropro = null;
} else {
$randfunc = db_getfunc('RAND');
$r = q("SELECT abook.*, xchan.* FROM abook left join xchan on abook.abook_xchan = xchan.xchan_hash WHERE abook_channel = %d $abook_flags and abook_archived = 0 and xchan_orphan = 0 and xchan_deleted = 0 $sql_extra ORDER BY $randfunc LIMIT %d",
intval(App::$profile['uid']),
intval($shown)
);
if(count($r)) {
$contacts = t('Connections');
$micropro = Array();
foreach($r as $rr) {
$rr['archived'] = (intval($rr['abook_archived']) ? true : false);
$micropro[] = micropro($rr,true,'mpfriend');
}
}
}
$tpl = get_markup_template('contact_block.tpl');
$o = replace_macros($tpl, array(
'$contacts' => $contacts,
'$nickname' => App::$profile['channel_address'],
'$viewconnections' => (($total > $shown) ? sprintf(t('View all %s connections'),$total) : ''),
'$micropro' => $micropro,
));
$arr = array('contacts' => $r, 'output' => $o);
call_hooks('contact_block_end', $arr);
return $o;
}
function chanlink_hash($s) {
return z_root() . '/chanview?f=&hash=' . urlencode($s);
}
function chanlink_url($s) {
return z_root() . '/chanview?f=&url=' . urlencode($s);
}
function chanlink_cid($d) {
return z_root() . '/chanview?f=&cid=' . intval($d);
}
function magiclink_url($observer,$myaddr,$url) {
return (($observer)
? z_root() . '/magic?f=&dest=' . $url . '&addr=' . $myaddr
: $url
);
}
function micropro($contact, $redirect = false, $class = '', $textmode = false) {
if($contact['click'])
$url = '#';
else
$url = chanlink_hash($contact['xchan_hash']);
return replace_macros(get_markup_template(($textmode)?'micropro_txt.tpl':'micropro_img.tpl'),array(
'$click' => (($contact['click']) ? $contact['click'] : ''),
'$class' => $class . (($contact['archived']) ? ' archived' : ''),
'$url' => $url,
'$photo' => $contact['xchan_photo_s'],
'$name' => $contact['xchan_name'],
'$title' => $contact['xchan_name'] . ' [' . $contact['xchan_addr'] . ']',
));
}
function search($s,$id='search-box',$url='/search',$save = false) {
return replace_macros(get_markup_template('searchbox.tpl'),array(
'$s' => $s,
'$id' => $id,
'$action_url' => z_root() . $url,
'$search_label' => t('Search'),
'$save_label' => t('Save'),
'$savedsearch' => feature_enabled(local_channel(),'savedsearch')
));
}
function searchbox($s,$id='search-box',$url='/search',$save = false) {
return replace_macros(get_markup_template('searchbox.tpl'),array(
'$s' => $s,
'$id' => $id,
'$action_url' => z_root() . '/' . $url,
'$search_label' => t('Search'),
'$save_label' => t('Save'),
'$savedsearch' => ($save && feature_enabled(local_channel(),'savedsearch'))
));
}
function valid_email_regex($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;
}
function valid_email($x){
if(get_config('system','disable_email_validation'))
return true;
return valid_email_regex($x);
}
/**
* @brief Replace naked text hyperlink with HTML formatted hyperlink.
*
* @param string $s
* @param boolean $me (optional) default false
* @return string
*/
function linkify($s, $me = false) {
$s = preg_replace("/(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\@\~\#\'\%\$\!\+\,\@]*)/", (($me) ? ' <a href="$1" rel="me" >$1</a>' : ' <a href="$1" >$1</a>'), $s);
$s = preg_replace("/\<(.*?)(src|href)=(.*?)\&amp\;(.*?)\>/ism",'<$1$2=$3&$4>',$s);
return($s);
}
/**
* @brief Replace media element using http url with https to a local redirector
* if using https locally.
*
* Looks for HTML tags containing src elements that are http when we're viewing an https page
* Typically this throws an insecure content violation in the browser. So we redirect them
* to a local redirector which uses https and which redirects to the selected content
*
* @param string $s
* @returns string
*/
function sslify($s) {
if (strpos(z_root(),'https:') === false)
return $s;
// By default we'll only sslify img tags because media files will probably choke.
// You can set sslify_everything if you want - but it will likely white-screen if it hits your php memory limit.
// The downside is that http: media files will likely be blocked by your browser
// Complain to your browser maker
$allow = get_config('system','sslify_everything');
$pattern = (($allow) ? "/\<(.*?)src=\"(http\:.*?)\"(.*?)\>/" : "/\<img(.*?)src=\"(http\:.*?)\"(.*?)\>/" );
$matches = null;
$cnt = preg_match_all($pattern,$s,$matches,PREG_SET_ORDER);
if ($cnt) {
foreach ($matches as $match) {
$filename = basename( parse_url($match[2], PHP_URL_PATH) );
$s = str_replace($match[2],z_root() . '/sslify/' . $filename . '?f=&url=' . urlencode($match[2]),$s);
}
}
return $s;
}
function get_poke_verbs() {
// index is present tense verb
// value is array containing past tense verb, translation of present, translation of past
if(get_config('system','poke_basic')) {
$arr = array(
'poke' => array( 'poked', t('poke'), t('poked')),
);
}
else {
$arr = array(
'poke' => array( 'poked', t('poke'), t('poked')),
'ping' => array( 'pinged', t('ping'), t('pinged')),
'prod' => array( 'prodded', t('prod'), t('prodded')),
'slap' => array( 'slapped', t('slap'), t('slapped')),
'finger' => array( 'fingered', t('finger'), t('fingered')),
'rebuff' => array( 'rebuffed', t('rebuff'), t('rebuffed')),
);
call_hooks('poke_verbs', $arr);
}
return $arr;
}
function get_mood_verbs() {
$arr = array(
'happy' => t('happy'),
'sad' => t('sad'),
'mellow' => t('mellow'),
'tired' => t('tired'),
'perky' => t('perky'),
'angry' => t('angry'),
'stupefied' => t('stupefied'),
'puzzled' => t('puzzled'),
'interested' => t('interested'),
'bitter' => t('bitter'),
'cheerful' => t('cheerful'),
'alive' => t('alive'),
'annoyed' => t('annoyed'),
'anxious' => t('anxious'),
'cranky' => t('cranky'),
'disturbed' => t('disturbed'),
'frustrated' => t('frustrated'),
'depressed' => t('depressed'),
'motivated' => t('motivated'),
'relaxed' => t('relaxed'),
'surprised' => t('surprised'),
);
call_hooks('mood_verbs', $arr);
return $arr;
}
/**
* @brief Function to list all smilies, both internal and from addons.
*
* @return Returns array with keys 'texts' and 'icons'
*/
function list_smilies() {
$texts = array(
'&lt;3',
'&lt;/3',
'&lt;\\3',
':-)',
';-)',
':-(',
':-P',
':-p',
':-"',
':-&quot;',
':-x',
':-X',
':-D',
'8-|',
'8-O',
':-O',
'\\o/',
'o.O',
'O.o',
'o_O',
'O_o',
":'(",
":-!",
":-/",
":-[",
"8-)",
':beer',
':homebrew',
':coffee',
':facepalm',
':like',
':dislike',
':hubzilla'
);
$icons = array(
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-heart.gif" alt="&lt;3" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-brokenheart.gif" alt="&lt;/3" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-brokenheart.gif" alt="&lt;\\3" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-smile.gif" alt=":-)" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-wink.gif" alt=";-)" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-frown.gif" alt=":-(" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-tongue-out.gif" alt=":-P" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-tongue-out.gif" alt=":-p" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-kiss.gif" alt=":-\"" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-kiss.gif" alt=":-\"" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-kiss.gif" alt=":-x" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-kiss.gif" alt=":-X" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-laughing.gif" alt=":-D" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-surprised.gif" alt="8-|" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-surprised.gif" alt="8-O" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-surprised.gif" alt=":-O" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-thumbsup.gif" alt="\\o/" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-Oo.gif" alt="o.O" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-Oo.gif" alt="O.o" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-Oo.gif" alt="o_O" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-Oo.gif" alt="O_o" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-cry.gif" alt=":\'(" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-foot-in-mouth.gif" alt=":-!" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-undecided.gif" alt=":-/" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-embarassed.gif" alt=":-[" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-cool.gif" alt="8-)" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/beer_mug.gif" alt=":beer" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/beer_mug.gif" alt=":homebrew" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/coffee.gif" alt=":coffee" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-facepalm.gif" alt=":facepalm" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/like.gif" alt=":like" />',
'<img class="smiley" src="' . z_root() . '/images/emoticons/dislike.gif" alt=":dislike" />',
'<img class="smiley" src="' . z_root() . '/images/hz-16.png" alt=":hubzilla" />',
);
$x = get_config('feature','emoji');
if($x === false)
$x = 1;
if($x) {
if(! App::$emojitab)
App::$emojitab = json_decode(file_get_contents('library/emoji.json'),true);
foreach(App::$emojitab as $e) {
if(strpos($e['shortname'],':tone') === 0)
continue;
$texts[] = $e['shortname'];
$icons[] = '<img class="smiley emoji" height="16" width="16" src="images/emoji/' . $e['unicode'] . '.png' . '" alt="' . $e['name'] . '" />';
}
}
$params = array('texts' => $texts, 'icons' => $icons);
call_hooks('smilie', $params);
return $params;
}
/**
* @brief Replaces text emoticons with graphical images.
*
* It is expected that this function will be called using HTML text.
* We will escape text between HTML pre and code blocks, and HTML attributes
* (such as urls) from being processed.
*
* At a higher level, the bbcode [nosmile] tag can be used to prevent this
* function from being executed by the prepare_text() routine when preparing
* bbcode source for HTML display.
*
* @param string $s
* @param boolean $sample (optional) default false
* @return string
*/
function smilies($s, $sample = false) {
if(intval(get_config('system', 'no_smilies'))
|| (local_channel() && intval(get_pconfig(local_channel(), 'system', 'no_smilies'))))
return $s;
$s = preg_replace_callback('{<(pre|code)>.*?</\1>}ism', 'smile_shield', $s);
$s = preg_replace_callback('/<[a-z]+ .*?>/ism', 'smile_shield', $s);
$params = list_smilies();
$params['string'] = $s;
if ($sample) {
$s = '<div class="smiley-sample">';
for ($x = 0; $x < count($params['texts']); $x ++) {
$s .= '<dl><dt>' . $params['texts'][$x] . '</dt><dd>' . $params['icons'][$x] . '</dd></dl>';
}
} else {
$params['string'] = preg_replace_callback('/&lt;(3+)/','preg_heart',$params['string']);
$s = str_replace($params['texts'],$params['icons'],$params['string']);
}
$s = preg_replace_callback('/<!--base64:(.*?)-->/ism', 'smile_unshield', $s);
return $s;
}
/**
* @brief
*
* @param array $m
* @return string
*/
function smile_shield($m) {
return '<!--base64:' . base64special_encode($m[0]) . '-->';
}
function smile_unshield($m) {
return base64special_decode($m[1]);
}
/**
* @brief Expand <3333 to the correct number of hearts.
*
* @param array $x
*/
function preg_heart($x) {
if (strlen($x[1]) == 1)
return $x[0];
$t = '';
for($cnt = 0; $cnt < strlen($x[1]); $cnt ++)
$t .= '<img class="smiley" src="' . z_root() . '/images/emoticons/smiley-heart.gif" alt="&lt;3" />';
$r = str_replace($x[0],$t,$x[0]);
return $r;
}
function day_translate($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;
}
/**
* @brief normalises a string.
*
* @param string $url
* @return string
*/
function normalise_link($url) {
$ret = str_replace(array('https:', '//www.'), array('http:', '//'), $url);
return(rtrim($ret, '/'));
}
/**
* @brief 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.
*
* @see normalise_link()
*
* @param string $a
* @param string $b
* @return true if the URLs match, otherwise false
*/
function link_compare($a, $b) {
if (strcasecmp(normalise_link($a), normalise_link($b)) === 0)
return true;
return false;
}
// Given an item array, convert the body element from bbcode to html and add smilie icons.
// If attach is true, also add icons for item attachments
function unobscure(&$item) {
if(array_key_exists('item_obscured',$item) && intval($item['item_obscured'])) {
$key = get_config('system','prvkey');
if($item['title'])
$item['title'] = crypto_unencapsulate(json_decode($item['title'],true),$key);
if($item['body'])
$item['body'] = crypto_unencapsulate(json_decode($item['body'],true),$key);
if(get_config('system','item_cache')) {
q("update item set title = '%s', body = '%s', item_obscured = 0 where id = %d",
dbesc($item['title']),
dbesc($item['body']),
intval($item['id'])
);
}
}
}
function unobscure_mail(&$item) {
if(array_key_exists('mail_obscured',$item) && intval($item['mail_obscured'])) {
if($item['title'])
$item['title'] = base64url_decode(str_rot47($item['title']));
if($item['body'])
$item['body'] = base64url_decode(str_rot47($item['body']));
}
}
function theme_attachments(&$item) {
$arr = json_decode($item['attach'],true);
if(is_array($arr) && count($arr)) {
$attaches = array();
foreach($arr as $r) {
$icon = getIconFromType($r['type']);
$label = (($r['title']) ? urldecode(htmlspecialchars($r['title'], ENT_COMPAT, 'UTF-8')) : t('Unknown Attachment'));
//some feeds provide an attachment where title an empty space
if($label == ' ')
$label = t('Unknown Attachment');
$title = t('Size') . ' ' . (($r['length']) ? userReadableSize($r['length']) : t('unknown'));
require_once('include/channel.php');
if(is_foreigner($item['author_xchan']))
$url = $r['href'];
else
$url = z_root() . '/magic?f=&hash=' . $item['author_xchan'] . '&dest=' . $r['href'] . '/' . $r['revision'];
//$s .= '<a href="' . $url . '" title="' . $title . '" class="attachlink" >' . $icon . '</a>';
$attaches[] = array('label' => $label, 'url' => $url, 'icon' => $icon, 'title' => $title);
}
$s = replace_macros(get_markup_template('item_attach.tpl'), array(
'$attaches' => $attaches
));
}
return $s;
}
function format_categories(&$item,$writeable) {
$s = '';
$terms = get_terms_oftype($item['term'],TERM_CATEGORY);
if($terms) {
$categories = array();
foreach($terms as $t) {
$term = htmlspecialchars($t['term'],ENT_COMPAT,'UTF-8',false) ;
if(! trim($term))
continue;
$removelink = (($writeable) ? z_root() . '/filerm/' . $item['id'] . '?f=&cat=' . urlencode($t['term']) : '');
$categories[] = array('term' => $term, 'writeable' => $writeable, 'removelink' => $removelink, 'url' => zid($t['url']));
}
$s = replace_macros(get_markup_template('item_categories.tpl'),array(
'$remove' => t('remove category'),
'$categories' => $categories
));
}
return $s;
}
/**
* @brief Add any hashtags which weren't mentioned in the message body, e.g. community tags
*
* @param[in] array &$item
* @return string HTML link of hashtag
*/
function format_hashtags(&$item) {
$s = '';
$terms = get_terms_oftype($item['term'], array(TERM_HASHTAG,TERM_COMMUNITYTAG));
if($terms) {
foreach($terms as $t) {
$term = htmlspecialchars($t['term'], ENT_COMPAT, 'UTF-8', false) ;
if(! trim($term))
continue;
if(strpos($item['body'], $t['url']))
continue;
if($s)
$s .= '&nbsp';
$s .= '#<a href="' . zid($t['url']) . '" >' . $term . '</a>';
}
}
return $s;
}
function format_mentions(&$item) {
$s = '';
$terms = get_terms_oftype($item['term'],TERM_MENTION);
if($terms) {
foreach($terms as $t) {
$term = htmlspecialchars($t['term'],ENT_COMPAT,'UTF-8',false) ;
if(! trim($term))
continue;
if(strpos($item['body'], $t['url']))
continue;
if($s)
$s .= '&nbsp';
$s .= '@<a href="' . zid($t['url']) . '" >' . $term . '</a>';
}
}
return $s;
}
function format_filer(&$item) {
$s = '';
$terms = get_terms_oftype($item['term'],TERM_FILE);
if($terms) {
$categories = array();
foreach($terms as $t) {
$term = htmlspecialchars($t['term'],ENT_COMPAT,'UTF-8',false) ;
if(! trim($term))
continue;
$removelink = z_root() . '/filerm/' . $item['id'] . '?f=&term=' . urlencode($t['term']);
$categories[] = array('term' => $term, 'removelink' => $removelink);
}
$s = replace_macros(get_markup_template('item_filer.tpl'),array(
'$remove' => t('remove from file'),
'$categories' => $categories
));
}
return $s;
}
function generate_map($coord) {
$coord = trim($coord);
$coord = str_replace(array(',','/',' '),array(' ',' ',' '),$coord);
$arr = array('lat' => trim(substr($coord,0,strpos($coord,' '))), 'lon' => trim(substr($coord,strpos($coord,' ')+1)), 'html' => '');
call_hooks('generate_map',$arr);
return (($arr['html']) ? $arr['html'] : $coord);
}
function generate_named_map($location) {
$arr = array('location' => $location, 'html' => '');
call_hooks('generate_named_map',$arr);
return (($arr['html']) ? $arr['html'] : $location);
}
function prepare_body(&$item,$attach = false) {
call_hooks('prepare_body_init', $item);
$s = '';
$photo = '';
$is_photo = ((($item['verb'] === ACTIVITY_POST) && ($item['obj_type'] === ACTIVITY_OBJ_PHOTO)) ? true : false);
if($is_photo) {
$object = json_decode($item['obj'],true);
// if original photo width is <= 640px prepend it to item body
if($object['link'][0]['width'] && $object['link'][0]['width'] <= 640) {
$s .= '<div class="inline-photo-item-wrapper"><a href="' . zid(rawurldecode($object['id'])) . '" target="_blank"><img class="inline-photo-item" style="max-width:' . $object['link'][0]['width'] . 'px; width:100%; height:auto;" src="' . zid(rawurldecode($object['link'][0]['href'])) . '"></a></div>' . $s;
}
// if original photo width is > 640px make it a cover photo
if($object['link'][0]['width'] && $object['link'][0]['width'] > 640) {
$scale = ((($object['link'][1]['width'] == 1024) || ($object['link'][1]['height'] == 1024)) ? 1 : 0);
$photo = '<a href="' . zid(rawurldecode($object['id'])) . '" target="_blank"><img style="max-width:' . $object['link'][$scale]['width'] . 'px; width:100%; height:auto;" src="' . zid(rawurldecode($object['link'][$scale]['href'])) . '"></a>';
}
}
$s .= prepare_text($item['body'],$item['mimetype'], false);
$event = (($item['obj_type'] === ACTIVITY_OBJ_EVENT) ? format_event_obj($item['obj']) : false);
$prep_arr = array(
'item' => $item,
'html' => $event ? $event['content'] : $s,
'event' => $event['header'],
'photo' => $photo
);
call_hooks('prepare_body', $prep_arr);
$s = $prep_arr['html'];
$photo = $prep_arr['photo'];
$event = $prep_arr['event'];
// q("update item set html = '%s' where id = %d",
// dbesc($s),
// intval($item['id'])
// );
if(! $attach) {
return $s;
}
if(strpos($s,'<div class="map">') !== false && $item['coord']) {
$x = generate_map(trim($item['coord']));
if($x) {
$s = preg_replace('/\<div class\=\"map\"\>/','$0' . $x,$s);
}
}
$attachments = theme_attachments($item);
$writeable = ((get_observer_hash() == $item['owner_xchan']) ? true : false);
$tags = format_hashtags($item);
if($item['resource_type'])
$mentions = format_mentions($item);
$categories = format_categories($item,$writeable);
if(local_channel() == $item['uid'])
$filer = format_filer($item);
$s = sslify($s);
$prep_arr = array(
'item' => $item,
'photo' => $photo,
'html' => $s,
'event' => $event,
'categories' => $categories,
'folders' => $filer,
'tags' => $tags,
'mentions' => $mentions,
'attachments' => $attachments
);
call_hooks('prepare_body_final', $prep_arr);
unset($prep_arr['item']);
return $prep_arr;
}
/**
* @brief Given a text string, convert from bbcode to html and add smilie icons.
*
* @param string $text
* @param sting $content_type (optional) default text/bbcode
* @param boolean $cache (optional) default false
*
* @return string
*/
function prepare_text($text, $content_type = 'text/bbcode', $cache = false) {
switch($content_type) {
case 'text/plain':
$s = escape_tags($text);
break;
case 'text/html':
$s = $text;
break;
case 'text/markdown':
require_once('library/markdown.php');
$s = Markdown($text);
break;
case 'application/x-pdl';
$s = escape_tags($text);
break;
// No security checking is done here at display time - so we need to verify
// that the author is allowed to use PHP before storing. We also cannot allow
// importation of PHP text bodies from other sites. Therefore this content
// type is only valid for web pages (and profile details).
// It may be possible to provide a PHP message body which is evaluated on the
// sender's site before sending it elsewhere. In that case we will have a
// different content-type here.
case 'application/x-php':
ob_start();
eval($text);
$s = ob_get_contents();
ob_end_clean();
break;
case 'text/bbcode':
case '':
default:
require_once('include/bbcode.php');
if(stristr($text,'[nosmile]'))
$s = bbcode($text,false,true,$cache);
else
$s = smilies(bbcode($text,false,true,$cache));
$s = zidify_links($s);
break;
}
//logger('prepare_text: ' . $s);
return $s;
}
function create_export_photo_body(&$item) {
if(($item['verb'] === ACTIVITY_POST) && ($item['obj_type'] === ACTIVITY_OBJ_PHOTO)) {
$j = json_decode($item['obj'],true);
if($j) {
$item['body'] .= "\n\n" . (($j['body']) ? $j['body'] : $j['bbcode']);
$item['sig'] = '';
}
}
}
/**
* @brief Return atom link elements for all of our hubs.
*
* @return string
*/
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;
}
/**
* @brief Return atom link elements for salmon endpoints
*
* @param string $nick
* @return string
*/
function feed_salmonlinks($nick) {
$salmon = '<link rel="salmon" href="' . xmlify(z_root() . '/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(z_root() . '/salmon/' . $nick) . '" />' . "\n" ;
$salmon .= ' <link rel="http://salmon-protocol.org/ns/salmon-mention" href="' . xmlify(z_root() . '/salmon/' . $nick) . '" />' . "\n" ;
return $salmon;
}
function get_plink($item,$conversation_mode = true) {
if($conversation_mode)
$key = 'plink';
else
$key = 'llink';
if(x($item,$key)) {
return array(
'href' => zid($item[$key]),
'title' => t('Link to Source'),
);
}
else {
return false;
}
}
function unamp($s) {
return str_replace('&amp;', '&', $s);
}
function layout_select($channel_id, $current = '') {
$r = q("select mid, v from item left join iconfig on iconfig.iid = item.id
where iconfig.cat = 'system' and iconfig.k = 'PDL' and item.uid = %d and item_type = %d ",
intval($channel_id),
intval(ITEM_TYPE_PDL)
);
if($r) {
$empty_selected = (($current === false) ? ' selected="selected" ' : '');
$options .= '<option value="" ' . $empty_selected . '>' . t('default') . '</option>';
foreach($r as $rr) {
$selected = (($rr['mid'] == $current) ? ' selected="selected" ' : '');
$options .= '<option value="' . $rr['mid'] . '"' . $selected . '>' . $rr['v'] . '</option>';
}
}
$o = replace_macros(get_markup_template('field_select_raw.tpl'), array(
'$field' => array('layout_mid', t('Page layout'), $selected, t('You can create your own with the layouts tool'), $options)
));
return $o;
}
function mimetype_select($channel_id, $current = 'text/bbcode') {
$x = array(
'text/bbcode',
'text/html',
'text/markdown',
'text/plain',
'application/x-pdl'
);
if(App::$is_sys) {
$x[] = 'application/x-php';
}
else {
$r = q("select account_id, account_roles, channel_pageflags from account left join channel on account_id = channel_account_id where
channel_id = %d limit 1",
intval($channel_id)
);
if($r) {
if(($r[0]['account_roles'] & ACCOUNT_ROLE_ALLOWCODE) || ($r[0]['channel_pageflags'] & PAGE_ALLOWCODE)) {
if(local_channel() && get_account_id() == $r[0]['account_id']) {
$x[] = 'application/x-php';
}
}
}
}
foreach($x as $y) {
$selected = (($y == $current) ? ' selected="selected" ' : '');
$options .= '<option name="' . $y . '"' . $selected . '>' . $y . '</option>';
}
$o = replace_macros(get_markup_template('field_select_raw.tpl'), array(
'$field' => array('mimetype', t('Page content type'), $selected, '', $options)
));
return $o;
}
function engr_units_to_bytes ($size_str) {
if(! $size_str)
return $size_str;
switch (substr(trim($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 $size_str;
}
}
function base64url_encode($s, $strip_padding = true) {
$s = strtr(base64_encode($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 $s;
}
return base64_decode(strtr($s,'-_','+/'));
}
function base64special_encode($s, $strip_padding = true) {
$s = strtr(base64_encode($s),'+/',',.');
if($strip_padding)
$s = str_replace('=','',$s);
return $s;
}
function base64special_decode($s) {
if(is_array($s)) {
logger('base64url_decode: illegal input: ' . print_r(debug_backtrace(), true));
return $s;
}
return base64_decode(strtr($s,',.','+/'));
}
/**
* @brief Return a div to clear floats.
*
* @return string
*/
function cleardiv() {
return '<div class="clear"></div>';
}
function bb_translate_video($s) {
$arr = array('string' => $s);
call_hooks('bb_translate_video',$arr);
return $arr['string'];
}
function html2bb_video($s) {
$arr = array('string' => $s);
call_hooks('html2bb_video',$arr);
return $arr['string'];
}
/**
* 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 = "/<a([^>]*) href=\"(?!http|https|\/)([^\"]*)\"/";
$replace = "<a\${1} href=\"" . $base2 . "\${2}\"";
$text = preg_replace($pattern, $replace, $text);
$pattern = "/<a([^>]*) href=\"(?!http|https)([^\"]*)\"/";
$replace = "<a\${1} href=\"" . $base . "\${2}\"";
$text = preg_replace($pattern, $replace, $text);
// Replace images
$pattern = "/<img([^>]*) src=\"(?!http|https|\/)([^\"]*)\"/";
$replace = "<img\${1} src=\"" . $base2 . "\${2}\"";
$text = preg_replace($pattern, $replace, $text);
$pattern = "/<img([^>]*) src=\"(?!http|https)([^\"]*)\"/";
$replace = "<img\${1} src=\"" . $base . "\${2}\"";
$text = preg_replace($pattern, $replace, $text);
// Done
return $text;
}
function item_post_type($item) {
switch($item['resource_type']) {
case 'photo':
$post_type = t('photo');
break;
case 'event':
$post_type = t('event');
break;
default:
$post_type = t('status');
if($item['mid'] != $item['parent_mid'])
$post_type = t('comment');
break;
}
if(strlen($item['verb']) && (! activity_match($item['verb'],ACTIVITY_POST)))
$post_type = t('activity');
return $post_type;
}
function undo_post_tagging($s) {
$matches = null;
$cnt = preg_match_all('/([@#])(\!*)\[zrl=(.*?)\](.*?)\[\/zrl\]/ism',$s,$matches,PREG_SET_ORDER);
if($cnt) {
foreach($matches as $mtch) {
$s = str_replace($mtch[0], $mtch[1] . $mtch[2] . str_replace(' ','_',$mtch[4]),$s);
}
}
return $s;
}
function fix_mce_lf($s) {
$s = str_replace("\r\n","\n",$s);
// $s = str_replace("\n\n","\n",$s);
return $s;
}
function protect_sprintf($s) {
return(str_replace('%','%%',$s));
}
function is_a_date_arg($s) {
$i = intval($s);
if($i > 1900) {
$y = date('Y');
if($i <= $y+1 && strpos($s,'-') == 4) {
$m = intval(substr($s,5));
if($m > 0 && $m <= 12)
return true;
}
}
return false;
}
function legal_webbie($s) {
if(! strlen($s))
return '';
$x = $s;
do {
$s = $x;
$x = preg_replace('/^([^a-z])(.*?)/',"$2",$s);
} while($x != $s);
return preg_replace('/([^a-z0-9\-\_])/','',$x);
}
function check_webbie($arr) {
$reservechan = get_config('system','reserved_channels');
if(strlen($reservechan))
$taken = explode(',', $reservechan);
else
$taken = array('principals','addressbooks','calendars');
$str = '';
if(count($arr)) {
foreach($arr as $x) {
$y = legal_webbie($x);
if(strlen($y)) {
if($str)
$str .= ',';
$str .= "'" . dbesc($y) . "'";
}
}
if(strlen($str)) {
$r = q("select channel_address from channel where channel_address in ( $str ) ");
if(count($r)) {
foreach($r as $rr) {
$taken[] = $rr['channel_address'];
}
}
foreach($arr as $x) {
$y = legal_webbie($x);
if(! in_array($y,$taken)) {
return $y;
}
}
}
}
return '';
}
function ids_to_array($arr,$idx = 'id') {
$t = array();
if($arr) {
foreach($arr as $x) {
if(array_key_exists($idx,$x) && strlen($x[$idx]) && (! in_array($x[$idx],$t))) {
$t[] = $x[$idx];
}
}
}
return($t);
}
function ids_to_querystr($arr,$idx = 'id',$quote = false) {
$t = array();
if($arr) {
foreach($arr as $x) {
if(! in_array($x[$idx],$t)) {
if($quote)
$t[] = "'" . dbesc($x[$idx]) . "'";
else
$t[] = $x[$idx];
}
}
}
return(implode(',', $t));
}
/**
* @brief Fetches xchan and hubloc data for an array of items with only an
* author_xchan and owner_xchan.
*
* If $abook is true also include the abook info. This is needed in the API to
* save extra per item lookups there.
*
* @param array[in,out] &$items
* @param boolean $abook If true also include the abook info
* @param number $effective_uid
*/
function xchan_query(&$items, $abook = true, $effective_uid = 0) {
$arr = array();
if($items && count($items)) {
if($effective_uid) {
for($x = 0; $x < count($items); $x ++) {
$items[$x]['real_uid'] = $items[$x]['uid'];
$items[$x]['uid'] = $effective_uid;
}
}
foreach($items as $item) {
if($item['owner_xchan'] && (! in_array("'" . dbesc($item['owner_xchan']) . "'",$arr)))
$arr[] = "'" . dbesc($item['owner_xchan']) . "'";
if($item['author_xchan'] && (! in_array("'" . dbesc($item['author_xchan']) . "'",$arr)))
$arr[] = "'" . dbesc($item['author_xchan']) . "'";
}
}
if(count($arr)) {
if($abook) {
$chans = q("select * from xchan left join hubloc on hubloc_hash = xchan_hash left join abook on abook_xchan = xchan_hash and abook_channel = %d
where xchan_hash in (" . protect_sprintf(implode(',', $arr)) . ") and hubloc_primary = 1",
intval($item['uid'])
);
}
else {
$chans = q("select xchan.*,hubloc.* from xchan left join hubloc on hubloc_hash = xchan_hash
where xchan_hash in (" . protect_sprintf(implode(',', $arr)) . ") and hubloc_primary = 1");
}
$xchans = q("select * from xchan where xchan_hash in (" . protect_sprintf(implode(',',$arr)) . ") and xchan_network in ('rss','unknown')");
if(! $chans)
$chans = $xchans;
else
$chans = array_merge($xchans,$chans);
}
if($items && count($items) && $chans && count($chans)) {
for($x = 0; $x < count($items); $x ++) {
$items[$x]['owner'] = find_xchan_in_array($items[$x]['owner_xchan'],$chans);
$items[$x]['author'] = find_xchan_in_array($items[$x]['author_xchan'],$chans);
}
}
}
function xchan_mail_query(&$item) {
$arr = array();
$chans = null;
if($item) {
if($item['from_xchan'] && (! in_array("'" . dbesc($item['from_xchan']) . "'",$arr)))
$arr[] = "'" . dbesc($item['from_xchan']) . "'";
if($item['to_xchan'] && (! in_array("'" . dbesc($item['to_xchan']) . "'",$arr)))
$arr[] = "'" . dbesc($item['to_xchan']) . "'";
}
if(count($arr)) {
$chans = q("select xchan.*,hubloc.* from xchan left join hubloc on hubloc_hash = xchan_hash
where xchan_hash in (" . implode(',', $arr) . ") and hubloc_primary = 1");
}
if($chans) {
$item['from'] = find_xchan_in_array($item['from_xchan'],$chans);
$item['to'] = find_xchan_in_array($item['to_xchan'],$chans);
}
}
function find_xchan_in_array($xchan,$arr) {
if(count($arr)) {
foreach($arr as $x) {
if($x['xchan_hash'] === $xchan) {
return $x;
}
}
}
return array();
}
function get_rel_link($j,$rel) {
if(is_array($j) && ($j))
foreach($j as $l)
if(array_key_exists('rel',$l) && $l['rel'] === $rel && array_key_exists('href',$l))
return $l['href'];
return '';
}
// Lots of code to write here
function magic_link($s) {
return $s;
}
/**
* if $escape is true, dbesc() each element before adding quotes
*
* @param array[in,out] &$arr
* @param boolean $escape default false
*/
function stringify_array_elms(&$arr, $escape = false) {
for($x = 0; $x < count($arr); $x ++)
$arr[$x] = "'" . (($escape) ? dbesc($arr[$x]) : $arr[$x]) . "'";
}
/**
* @brief Indents a flat JSON string to make it more human-readable.
*
* @param string $json The original JSON string to process.
*
* @return string Indented version of the original JSON string.
*/
function jindent($json) {
$result = '';
$pos = 0;
$strLen = strlen($json);
$indentStr = ' ';
$newLine = "\n";
$prevChar = '';
$outOfQuotes = true;
for ($i=0; $i<=$strLen; $i++) {
// Grab the next character in the string.
$char = substr($json, $i, 1);
// Are we inside a quoted string?
if ($char == '"' && $prevChar != '\\') {
$outOfQuotes = !$outOfQuotes;
// If this character is the end of an element,
// output a new line and indent the next line.
} else if(($char == '}' || $char == ']') && $outOfQuotes) {
$result .= $newLine;
$pos --;
for ($j=0; $j<$pos; $j++) {
$result .= $indentStr;
}
}
// Add the character to the result string.
$result .= $char;
// If the last character was the beginning of an element,
// output a new line and indent the next line.
if (($char == ',' || $char == '{' || $char == '[') && $outOfQuotes) {
$result .= $newLine;
if ($char == '{' || $char == '[') {
$pos ++;
}
for ($j = 0; $j < $pos; $j++) {
$result .= $indentStr;
}
}
$prevChar = $char;
}
return $result;
}
/**
* @brief Creates navigation menu for webpage, layout, blocks, menu sites.
*
* @return string with parsed HTML
*/
function design_tools() {
$channel = App::get_channel();
$sys = false;
if(App::$is_sys && is_site_admin()) {
require_once('include/channel.php');
$channel = get_sys_channel();
$sys = true;
}
$who = $channel['channel_address'];
return replace_macros(get_markup_template('design_tools.tpl'), array(
'$title' => t('Design Tools'),
'$who' => $who,
'$sys' => $sys,
'$blocks' => t('Blocks'),
'$menus' => t('Menus'),
'$layout' => t('Layouts'),
'$pages' => t('Pages')
));
}
/**
* @brief Creates website portation tools menu
*
* @return string
*/
function website_portation_tools() {
$channel = App::get_channel();
$sys = false;
if(App::$is_sys && is_site_admin()) {
require_once('include/channel.php');
$channel = get_sys_channel();
$sys = true;
}
return replace_macros(get_markup_template('website_portation_tools.tpl'), array(
'$title' => t('Import'),
'$import_label' => t('Import website...'),
'$import_placeholder' => t('Select folder to import'),
'$file_upload_text' => t('Import from a zipped folder:'),
'$file_import_text' => t('Import from cloud files:'),
'$desc' => t('/cloud/channel/path/to/folder'),
'$hint' => t('Enter path to website files'),
'$select' => t('Select folder'),
'$export_label' => t('Export website...'),
'$file_download_text' => t('Export to a zip file'),
'$filename_desc' => t('website.zip'),
'$filename_hint' => t('Enter a name for the zip file.'),
'$cloud_export_text' => t('Export to cloud files'),
'$cloud_export_desc' => t('/path/to/export/folder'),
'$cloud_export_hint' => t('Enter a path to a cloud files destination.'),
'$cloud_export_select' => t('Specify folder'),
));
}
/**
* @brief case insensitive in_array()
*
* @param string $needle
* @param array $haystack
* @return boolean
*/
function in_arrayi($needle, $haystack) {
return in_array(strtolower($needle), array_map('strtolower', $haystack));
}
function normalise_openid($s) {
return trim(str_replace(array('http://','https://'),array('',''),$s),'/');
}
/**
* Used in ajax endless scroll request to find out all the args that the master page was viewing.
* This was using $_REQUEST, but $_REQUEST also contains all your cookies. So we're restricting it
* to $_GET and $_POST.
*
* @return string with additional URL parameters
*/
function extra_query_args() {
$s = '';
if(count($_GET)) {
foreach($_GET as $k => $v) {
// these are request vars we don't want to duplicate
if(! in_array($k, array('q','f','zid','page','PHPSESSID'))) {
$s .= '&' . $k . '=' . urlencode($v);
}
}
}
if(count($_POST)) {
foreach($_POST as $k => $v) {
// these are request vars we don't want to duplicate
if(! in_array($k, array('q','f','zid','page','PHPSESSID'))) {
$s .= '&' . $k . '=' . urlencode($v);
}
}
}
return $s;
}
/**
* @brief This function removes the tag $tag from the text $body and replaces it
* with the appropiate link.
*
* @param App $a
* @param[in,out] string &$body the text to replace the tag in
* @param[in,out] string &$access_tag used to return tag ACL exclusions e.g. @!foo
* @param[in,out] string &$str_tags string to add the tag to
* @param int $profile_uid
* @param string $tag the tag to replace
* @param boolean $diaspora default false
* @return boolean true if replaced, false if not replaced
*/
function handle_tag($a, &$body, &$access_tag, &$str_tags, $profile_uid, $tag, $diaspora = false) {
$replaced = false;
$r = null;
$match = array();
$termtype = ((strpos($tag,'#') === 0) ? TERM_HASHTAG : TERM_UNKNOWN);
$termtype = ((strpos($tag,'@') === 0) ? TERM_MENTION : $termtype);
$termtype = ((strpos($tag,'#^[') === 0) ? TERM_BOOKMARK : $termtype);
//is it a hash tag?
if(strpos($tag,'#') === 0) {
if(strpos($tag,'#^[') === 0) {
if(preg_match('/#\^\[(url|zrl)(.*?)\](.*?)\[\/(url|zrl)\]/',$tag,$match)) {
$basetag = $match[3];
$url = ((substr($match[2],0,1) === '=') ? substr($match[2],1) : $match[3]);
$replaced = true;
}
}
// if the tag is already replaced...
elseif((strpos($tag,'[zrl=')) || (strpos($tag,'[url='))) {
//...do nothing
return $replaced;
}
if($tag == '#getzot') {
$basetag = 'getzot';
$url = 'http://hubzilla.org';
$newtag = '#[zrl=' . $url . ']' . $basetag . '[/zrl]';
$body = str_replace($tag,$newtag,$body);
$replaced = true;
}
if(! $replaced) {
//base tag has the tags name only
if((substr($tag,0,7) === '#&quot;') && (substr($tag,-6,6) === '&quot;')) {
$basetag = substr($tag,7);
$basetag = substr($basetag,0,-6);
}
else
$basetag = str_replace('_',' ',substr($tag,1));
//create text for link
$url = z_root() . '/search?tag=' . rawurlencode($basetag);
$newtag = '#[zrl=' . z_root() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/zrl]';
//replace tag by the link. Make sure to not replace something in the middle of a word
// The '=' is needed to not replace color codes if the code is also used as a tag
// Much better would be to somehow completely avoiding things in e.g. [color]-tags.
// This would allow writing things like "my favourite tag=#foobar".
$body = preg_replace('/(?<![a-zA-Z0-9=])'.preg_quote($tag,'/').'/', $newtag, $body);
$replaced = true;
}
//is the link already in str_tags?
if(! stristr($str_tags,$newtag)) {
//append or set str_tags
if(strlen($str_tags))
$str_tags .= ',';
$str_tags .= $newtag;
}
return [
'replaced' => $replaced,
'termtype' => $termtype,
'term' => $basetag,
'url' => $url,
'contact' => $r[0]
];
}
//is it a person tag?
if(strpos($tag,'@') === 0) {
// The @! tag will alter permissions
$exclusive = ((strpos($tag,'!') === 1 && (! $diaspora)) ? true : false);
//is it already replaced?
if(strpos($tag,'[zrl='))
return $replaced;
//get the person's name
$name = substr($tag,(($exclusive) ? 2 : 1)); // The name or name fragment we are going to replace
$newname = $name; // a copy that we can mess with
$tagcid = 0;
$r = null;
// is it some generated name?
$forum = false;
$trailing_plus_name = false;
// @channel+ is a forum or network delivery tag
if(substr($newname,-1,1) === '+') {
$forum = true;
$newname = substr($newname,0,-1);
}
// Here we're looking for an address book entry as provided by the auto-completer
// of the form something+nnn where nnn is an abook_id or the first chars of xchan_hash
// If there's a +nnn in the string make sure there isn't a space preceding it
$t1 = strpos($newname,' ');
$t2 = strrpos($newname,'+');
if($t1 && $t2 && $t1 < $t2)
$t2 = 0;
if(($t2) && (! $diaspora)) {
//get the id
$tagcid = substr($newname,$t2 + 1);
if(strrpos($tagcid,' '))
$tagcid = substr($tagcid,0,strrpos($tagcid,' '));
if(strlen($tagcid) < 16)
$abook_id = intval($tagcid);
//remove the next word from tag's name
if(strpos($name,' ')) {
$name = substr($name,0,strpos($name,' '));
}
if($abook_id) { // if there was an id
// select channel with that id from the logged in user's address book
$r = q("SELECT * FROM abook left join xchan on abook_xchan = xchan_hash
WHERE abook_id = %d AND abook_channel = %d LIMIT 1",
intval($abook_id),
intval($profile_uid)
);
}
else {
$r = q("SELECT * FROM xchan
WHERE xchan_hash like '%s%%' LIMIT 1",
dbesc($tagcid)
);
}
}
if(! $r) {
// look for matching names in the address book
// Two ways to deal with spaces - double quote the name or use underscores
// we see this after input filtering so quotes have been html entity encoded
if((substr($name,0,6) === '&quot;') && (substr($name,-6,6) === '&quot;')) {
$newname = substr($name,6);
$newname = substr($newname,0,-6);
}
else
$newname = str_replace('_',' ',$name);
// do this bit over since we started over with $name
if(substr($newname,-1,1) === '+') {
$forum = true;
$newname = substr($newname,0,-1);
}
//select someone from this user's contacts by name
$r = q("SELECT * FROM abook left join xchan on abook_xchan = xchan_hash
WHERE xchan_name = '%s' AND abook_channel = %d LIMIT 1",
dbesc($newname),
intval($profile_uid)
);
if(! $r) {
//select someone by attag or nick and the name passed in
$r = q("SELECT * FROM abook left join xchan on abook_xchan = xchan_hash
WHERE xchan_addr like ('%s') AND abook_channel = %d LIMIT 1",
dbesc(((strpos($newname,'@')) ? $newname : $newname . '@%')),
intval($profile_uid)
);
}
if(! $r) {
// it's possible somebody has a name ending with '+', which we stripped off as a forum indicator
// This is very rare but we want to get it right.
$r = q("SELECT * FROM abook left join xchan on abook_xchan = xchan_hash
WHERE xchan_name = '%s' AND abook_channel = %d LIMIT 1",
dbesc($newname . '+'),
intval($profile_uid)
);
if($r)
$trailing_plus_name = true;
}
}
// $r is set if we found something
$channel = App::get_channel();
if($r) {
$profile = $r[0]['xchan_url'];
$newname = $r[0]['xchan_name'];
// add the channel's xchan_hash to $access_tag if exclusive
if($exclusive) {
$access_tag .= 'cid:' . $r[0]['xchan_hash'];
}
}
else {
// check for a group/collection exclusion tag
// note that we aren't setting $replaced even though we're replacing text.
// This tag isn't going to get a term attached to it. It's only used for
// access control. The link points to out own channel just so it doesn't look
// weird - as all the other tags are linked to something.
if(local_channel() && local_channel() == $profile_uid) {
require_once('include/group.php');
$grp = group_byname($profile_uid,$name);
if($grp) {
$g = q("select hash from groups where id = %d and visible = 1 limit 1",
intval($grp)
);
if($g && $exclusive) {
$access_tag .= 'gid:' . $g[0]['hash'];
}
$channel = App::get_channel();
if($channel) {
$newtag = '@' . (($exclusive) ? '!' : '') . '[zrl=' . z_root() . '/channel/' . $channel['channel_address'] . ']' . $newname . '[/zrl]';
$body = str_replace('@' . (($exclusive) ? '!' : '') . $name, $newtag, $body);
}
}
}
}
if(($exclusive) && (! $access_tag)) {
$access_tag .= 'cid:' . $channel['channel_hash'];
}
// if there is an url for this channel
if(isset($profile)) {
$replaced = true;
//create profile link
$profile = str_replace(',','%2c',$profile);
$url = $profile;
$newtag = '@' . (($exclusive) ? '!' : '') . '[zrl=' . $profile . ']' . $newname . (($forum && ! $trailing_plus_name) ? '+' : '') . '[/zrl]';
$body = str_replace('@' . (($exclusive) ? '!' : '') . $name, $newtag, $body);
//append tag to str_tags
if(! stristr($str_tags,$newtag)) {
if(strlen($str_tags))
$str_tags .= ',';
$str_tags .= $newtag;
}
}
}
return [
'replaced' => $replaced,
'termtype' => $termtype,
'term' => $newname,
'url' => $url,
'contact' => $r[0]
];
}
function linkify_tags($a, &$body, $uid, $diaspora = false) {
$str_tags = '';
$tagged = array();
$results = array();
$tags = get_tags($body);
if(count($tags)) {
foreach($tags as $tag) {
$access_tag = '';
// If we already tagged 'Robert Johnson', don't try and tag 'Robert'.
// Robert Johnson should be first in the $tags array
$fullnametagged = false;
for($x = 0; $x < count($tagged); $x ++) {
if(stristr($tagged[$x],$tag . ' ')) {
$fullnametagged = true;
break;
}
}
if($fullnametagged)
continue;
$success = handle_tag($a, $body, $access_tag, $str_tags, ($uid) ? $uid : App::$profile_uid , $tag, $diaspora);
$results[] = array('success' => $success, 'access_tag' => $access_tag);
if($success['replaced']) $tagged[] = $tag;
}
}
return $results;
}
/**
* @brief returns icon name for use with e.g. font-awesome based on mime-type.
*
* These are the the font-awesome names of version 3.2.1. The newer font-awesome
* 4 has different names.
*
* @param string $type mime type
* @return string
* @todo rename to get_icon_from_type()
*/
function getIconFromType($type) {
$iconMap = array(
//Folder
t('Collection') => 'fa-folder',
'multipart/mixed' => 'fa-folder', //dirs in attach use this mime type
//Common file
'application/octet-stream' => 'fa-file-o',
//Text
'text/plain' => 'fa-file-text-o',
'application/msword' => 'fa-file-word-o',
'application/pdf' => 'fa-file-pdf-o',
'application/vnd.oasis.opendocument.text' => 'fa-file-word-o',
'application/epub+zip' => 'fa-book',
//Spreadsheet
'application/vnd.oasis.opendocument.spreadsheet' => 'fa-file-excel-o',
'application/vnd.ms-excel' => 'fa-file-excel-o',
//Image
'image/jpeg' => 'fa-picture-o',
'image/png' => 'fa-picture-o',
'image/gif' => 'fa-picture-o',
'image/svg+xml' => 'fa-picture-o',
//Archive
'application/zip' => 'fa-file-archive-o',
'application/x-rar-compressed' => 'fa-file-archive-o',
//Audio
'audio/mpeg' => 'fa-file-audio-o',
'audio/wav' => 'fa-file-audio-o',
'application/ogg' => 'fa-file-audio-o',
'audio/ogg' => 'fa-file-audio-o',
'audio/webm' => 'fa-file-audio-o',
'audio/mp4' => 'fa-file-audio-o',
//Video
'video/quicktime' => 'fa-file-video-o',
'video/webm' => 'fa-file-video-o',
'video/mp4' => 'fa-file-video-o',
'video/x-matroska' => 'fa-file-video-o'
);
$iconFromType = 'fa-file-o';
if (array_key_exists($type, $iconMap)) {
$iconFromType = $iconMap[$type];
}
return $iconFromType;
}
/**
* @brief Returns a human readable formatted string for filesizes.
*
* @param int $size filesize in bytes
* @return string human readable formatted filesize
* @todo rename to user_readable_size()
*/
function userReadableSize($size) {
$ret = '';
if (is_numeric($size)) {
$incr = 0;
$k = 1024;
$unit = array('bytes', 'KB', 'MB', 'GB', 'TB', 'PB');
while (($size / $k) >= 1){
$incr++;
$size = round($size / $k, 2);
}
$ret = $size . ' ' . $unit[$incr];
}
return $ret;
}
function str_rot47($str) {
return strtr($str,
'!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~',
'PQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNO');
}
function string_replace($old,$new,&$s) {
$x = str_replace($old,$new,$s);
$replaced = false;
if($x !== $s) {
$replaced = true;
}
$s = $x;
return $replaced;
}
function json_url_replace($old,$new,&$s) {
$old = str_replace('/','\\/',$old);
$new = str_replace('/','\\/',$new);
$x = str_replace($old,$new,$s);
$replaced = false;
if($x !== $s) {
$replaced = true;
}
$s = $x;
return $replaced;
}
function item_url_replace($channel,&$item,$old,$new,$oldnick = '') {
if($item['attach']) {
json_url_replace($old,$new,$item['attach']);
if($oldnick)
json_url_replace('/' . $oldnick . '/' ,'/' . $channel['channel_address'] . '/' ,$item['attach']);
}
if($item['object']) {
json_url_replace($old,$new,$item['object']);
if($oldnick)
json_url_replace('/' . $oldnick . '/' ,'/' . $channel['channel_address'] . '/' ,$item['object']);
}
if($item['target']) {
json_url_replace($old,$new,$item['target']);
if($oldnick)
json_url_replace('/' . $oldnick . '/' ,'/' . $channel['channel_address'] . '/' ,$item['target']);
}
if(string_replace($old,$new,$item['body'])) {
$item['sig'] = base64url_encode(rsa_sign($item['body'],$channel['channel_prvkey']));
$item['item_verified'] = 1;
}
$item['plink'] = str_replace($old,$new,$item['plink']);
if($oldnick)
$item['plink'] = str_replace('/' . $oldnick . '/' ,'/' . $channel['channel_address'] . '/' ,$item['plink']);
$item['llink'] = str_replace($old,$new,$item['llink']);
if($oldnick)
$item['llink'] = str_replace('/' . $oldnick . '/' ,'/' . $channel['channel_address'] . '/' ,$item['llink']);
}
/**
* @brief Used to wrap ACL elements in angle brackets for storage.
*
* @param[in,out] array &$item
*/
function sanitise_acl(&$item) {
if (strlen($item))
$item = '<' . notags(trim($item)) . '>';
else
unset($item);
}
/**
* @brief Convert an ACL array to a storable string.
*
* @param array $p
* @return array
*/
function perms2str($p) {
$ret = '';
if (is_array($p))
$tmp = $p;
else
$tmp = explode(',', $p);
if (is_array($tmp)) {
array_walk($tmp, 'sanitise_acl');
$ret = implode('', $tmp);
}
return $ret;
}
/**
* @brief Turn user/group ACLs stored as angle bracketed text into arrays.
*
* turn string array of angle-bracketed elements into string array
* e.g. "<123xyz><246qyo><sxo33e>" => array(123xyz,246qyo,sxo33e);
*
* @param string $s
* @return array
*/
function expand_acl($s) {
$ret = array();
if(strlen($s)) {
$t = str_replace('<','',$s);
$a = explode('>',$t);
foreach($a as $aa) {
if($aa)
$ret[] = $aa;
}
}
return $ret;
}
function acl2json($s) {
$s = expand_acl($s);
$s = json_encode($s);
return $s;
}
/**
* @brief When editing a webpage - a dropdown is needed to select a page layout
*
* On submit, the pdl_select value (which is the mid of an item with item_type = ITEM_TYPE_PDL)
* is stored in the webpage's resource_id, with resource_type 'pdl'.
*
* Then when displaying a webpage, we can see if it has a pdl attached. If not we'll
* use the default site/page layout.
*
* If it has a pdl we'll load it as we know the mid and pass the body through comanche_parser() which will generate the
* page layout from the given description
*
* @FIXME - there is apparently a very similar function called layout_select; this one should probably take precedence
* and the other should be checked for compatibility and removed
*
* @param int $uid
* @param string $current
* @return string HTML code for dropdown
*/
function pdl_selector($uid, $current='') {
$o = '';
$sql_extra = item_permissions_sql($uid);
$r = q("select iconfig.*, mid from item_id left join item on iconfig.iid = item.id
where item.uid = %d and iconfig.cat = 'system' and iconfig.k = 'PDL' $sql_extra order by v asc",
intval($uid)
);
$arr = array('channel_id' => $uid, 'current' => $current, 'entries' => $r);
call_hooks('pdl_selector', $arr);
$entries = $arr['entries'];
$current = $arr['current'];
$o .= '<select name="pdl_select" id="pdl_select" size="1">';
$entries[] = array('title' => t('Default'), 'mid' => '');
foreach($entries as $selection) {
$selected = (($selection == $current) ? ' selected="selected" ' : '');
$o .= "<option value=\"{$selection['mid']}\" $selected >{$selection['v']}</option>";
}
$o .= '</select>';
return $o;
}
/**
* @brief returns a one-dimensional array from a multi-dimensional array
* empty values are discarded
*
* example: print_r(flatten_array_recursive(array('foo','bar',array('baz','blip',array('zob','glob')),'','grip')));
*
* Array ( [0] => foo [1] => bar [2] => baz [3] => blip [4] => zob [5] => glob [6] => grip )
*
* @param array $arr multi-dimensional array
* @return one-dimensional array
*/
function flatten_array_recursive($arr) {
$ret = array();
if(! $arr)
return $ret;
foreach($arr as $a) {
if(is_array($a)) {
$tmp = flatten_array_recursive($a);
if($tmp) {
$ret = array_merge($ret, $tmp);
}
}
elseif($a) {
$ret[] = $a;
}
}
return($ret);
}
/**
* @brief Highlight Text.
*
* @param string $s Text to highlight
* @param string $lang Which language should be highlighted
* @return string
*/
function text_highlight($s, $lang) {
if($lang === 'js')
$lang = 'javascript';
if($lang === 'json') {
$lang = 'javascript';
if(! strpos(trim($s), "\n"))
$s = jindent($s);
}
if(! strpos('Text_Highlighter', get_include_path())) {
set_include_path(get_include_path() . PATH_SEPARATOR . 'library/Text_Highlighter');
}
require_once('library/Text_Highlighter/Text/Highlighter.php');
require_once('library/Text_Highlighter/Text/Highlighter/Renderer/Html.php');
$options = array(
'numbers' => HL_NUMBERS_LI,
'tabsize' => 4,
);
$tag_added = false;
$s = trim(html_entity_decode($s, ENT_COMPAT));
$s = str_replace(" ", "\t", $s);
// The highlighter library insists on an opening php tag for php code blocks. If
// it isn't present, nothing is highlighted. So we're going to see if it's present.
// If not, we'll add it, and then quietly remove it after we get the processed output back.
if($lang === 'php') {
if(strpos('<?php', $s) !== 0) {
$s = '<?php' . "\n" . $s;
$tag_added = true;
}
}
$renderer = new Text_Highlighter_Renderer_HTML($options);
$hl = Text_Highlighter::factory($lang);
$hl->setRenderer($renderer);
$o = $hl->highlight($s);
$o = str_replace([" ", "\n"], ["&nbsp;&nbsp;&nbsp;&nbsp;", ''], $o);
if($tag_added) {
$b = substr($o, 0, strpos($o, '<li>'));
$e = substr($o, strpos($o, '</li>'));
$o = $b . $e;
}
return('<code>' . $o . '</code>');
}
// function to convert multi-dimensional array to xml
// create new instance of simplexml
// $xml = new SimpleXMLElement('<root/>');
// function callback
// array2XML($xml, $my_array);
// save as xml file
// echo (($xml->asXML('data.xml')) ? 'Your XML file has been generated successfully!' : 'Error generating XML file!');
function arrtoxml($root_elem,$arr) {
$xml = new SimpleXMLElement('<?xml version="1.0" encoding="UTF-8"?><' . $root_elem . '></' . $root_elem . '>', null, false);
array2XML($xml,$arr);
return $xml->asXML();
}
function array2XML($obj, $array) {
foreach ($array as $key => $value) {
if(is_numeric($key))
$key = 'item' . $key;
if(is_array($value)) {
$node = $obj->addChild($key);
array2XML($node, $value);
} else {
$obj->addChild($key, htmlspecialchars($value));
}
}
}
function create_table_from_array($table, $arr) {
if(! ($arr && $table))
return false;
if(dbesc_array($arr)) {
$r = dbq("INSERT INTO " . TQUOT . $table . TQUOT . " (" . TQUOT
. implode(TQUOT . ', ' . TQUOT, array_keys($arr))
. TQUOT . ") VALUES ('"
. implode("', '", array_values($arr))
. "')"
);
}
return $r;
}