replace) * * @return string substituted string */ function replace_macros($s, $r) { $arr = [ 'template' => $s, 'params' => $r ]; /** * @hooks replace_macros * * \e string \b template * * \e array \b params */ 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($string, ENT_COMPAT, 'UTF-8', false)); } function z_input_filter($s,$type = 'text/bbcode',$allow_code = false) { if($type === 'text/bbcode') return escape_tags($s); if($type == 'text/plain') return escape_tags($s); if($type == 'application/x-pdl') return escape_tags($s); if(App::$is_sys) { return $s; } if($allow_code) { if($type === 'text/markdown') return htmlspecialchars($s,ENT_QUOTES); return $s; } if($type === 'text/markdown') { $x = new Zlib\MarkdownSoap($s); return $x->clean(); } if($type === 'text/html') return purify_html($s); return escape_tags($s); } /** * @brief Use HTMLPurifier to get standards compliant HTML. * * Use the HTMLPurifier * library to get filtered and standards compliant HTML. * * @see HTMLPurifier * * @param string $s raw HTML * @param boolean $allow_position allow CSS position * @return string standards compliant filtered HTML */ function purify_html($s, $allow_position = false) { /** * @FIXME this function has html output, not bbcode - so safely purify these * require_once('include/html2bbcode.php'); * $s = html2bb_video($s); * $s = oembed_html2bbcode($s); */ $config = HTMLPurifier_Config::createDefault(); $config->set('Cache.DefinitionImpl', null); $config->set('Attr.EnableID', true); // If enabled, target=blank attributes are added to all links. //$config->set('HTML.TargetBlank', true); //$config->set('Attr.AllowedFrameTargets', ['_blank', '_self', '_parent', '_top']); // restore old behavior of HTMLPurifier < 4.8, only used when targets allowed at all // do not add rel="noreferrer" to all links with target attributes //$config->set('HTML.TargetNoreferrer', false); // do not add noopener rel attributes to links which have a target attribute associated with them //$config->set('HTML.TargetNoopener', false); //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. * * @note In order to create "pronounceable" strings some consonant pairs or * letters that does not make a very good word ending are chopped off, so that * the returned string length can be lower than $len. * * @param int $len max length of generated string * @return string Genereated random, but usually pronounceable string */ function autoname($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'); // avoid these consonant pairs at the end of the string $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; } } // avoid the letter 'q' as it does not make a very good word ending 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 .= '&'; 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($buffer); } /** * @brief Undo an xmlify. * * Pass xml escaped text ($s), returns unescaped text. * * @param string $s * * @return string */ function unxmlify($s) { $ret = str_replace('&', '&', $s); $ret = str_replace(array('<', '>', '"', '''), 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']) { $o .= '
'; if(App::$pager['page'] != 1) $o .= ''."' . t('prev') . ' '; $o .= "" . t('first') . " "; $numpages = App::$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']) $o .= ''.(($i < 10) ? ' '.$i : $i); else $o .= "".(($i < 10) ? ' '.$i : $i).""; $o .= ' '; } if((App::$pager['total'] % App::$pager['itemspage']) != 0) { if($i == App::$pager['page']) $o .= ''.(($i < 10) ? ' '.$i : $i); else $o .= "".(($i < 10) ? ' '.$i : $i).""; $o .= ' '; } $lastpage = (($numpages > intval($numpages)) ? intval($numpages)+1 : $numpages); $o .= "" . t('last') . " "; if((App::$pager['total'] - (App::$pager['itemspage'] * App::$pager['page'])) > 0) $o .= ''."' . t('next') . ''; $o .= '
'."\r\n"; } return $o; } function alt_pager($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) { // remove quotes $attr = str_replace([ '"',"'" ],['',''],$attr); $a = explode(' ', $attr); if($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 = ''; $stack = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 2); $where = basename($stack[0]['file']) . ':' . $stack[0]['line'] . ':' . $stack[1]['function'] . ': '; $s = datetime_convert('UTC','UTC', 'now', ATOM_TIME) . ':' . log_priority_str($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, $priority = LOG_INFO) { if(! defined('BTLOGGER_DEBUG_FILE')) define('BTLOGGER_DEBUG_FILE','btlogger.out'); logger($msg, $level, $priority); if(file_exists(BTLOGGER_DEBUG_FILE) && is_writable(BTLOGGER_DEBUG_FILE)) { $stack = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 2); $where = basename($stack[0]['file']) . ':' . $stack[0]['line'] . ':' . $stack[1]['function'] . ': '; $s = datetime_convert('UTC','UTC', 'now', ATOM_TIME) . ':' . log_priority_str($priority) . ':' . session_id() . ':' . $where . $msg . PHP_EOL; @file_put_contents(BTLOGGER_DEBUG_FILE, $s, FILE_APPEND); } $stack = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS); if($stack) { for($x = 1; $x < count($stack); $x ++) { $s = 'stack: ' . basename($stack[$x]['file']) . ':' . $stack[$x]['line'] . ':' . $stack[$x]['function'] . '()'; logger($s,$level, $priority); if(file_exists(BTLOGGER_DEBUG_FILE) && is_writable(BTLOGGER_DEBUG_FILE)) { @file_put_contents(BTLOGGER_DEBUG_FILE, $s . PHP_EOL, FILE_APPEND); } } } } function log_priority_str($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 = ''; $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('UTC','UTC', 'now', ATOM_TIME) . ':' . 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(! is_array($needle)) $needle = [ $needle ]; if($needle) { foreach($needle as $n) { if(($haystack === $n) || (strtolower(basename($n)) === strtolower(basename($haystack)))) { 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','',$s); // match any double quoted tags if(preg_match_all('/([@#!]\"\;.*?\"\;)/',$s,$match)) { foreach($match[1] as $mtch) { $ret[] = $mtch; } } // match bracket mentions if(preg_match_all('/([@!]\{.*?\})/',$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 & by the time we see it.) if(preg_match_all('/(? $a['total']) ? 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" . '' . "\r\n"; $o .= "\t\t" . '' . "\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 $rr) { // There is no setting to discover if you are bi-directionally connected // Use the ability to post comments as an indication that this relationship is more // than wishful thinking; even though soapbox channels and feeds will disable it. if(! intval(get_abconfig(App::$profile['uid'],$rr['xchan_hash'],'their_perms','post_comments'))) { $rr['oneway'] = true; } $micropro[] = micropro($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=&owa=1&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' : ''), '$oneway' => (($contact['oneway']) ? true : false), '$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')) )); } /** * @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) { $s = preg_replace("/(https?\:\/\/[a-zA-Z0-9\pL\:\/\-\?\&\;\.\=\_\@\~\#\'\%\$\!\+\,\@]*)/u", (($me) ? ' $1' : ' $1'), $s); $s = preg_replace("/\<(.*?)(src|href)=(.*?)\&\;(.*?)\>/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\:.*?)\"(.*?)\>/" : "/\/" ); $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; } /** * @brief Get an array of poke verbs. * * @return array * * \e index is present tense verb * * \e value is array containing past tense verb, translation of present, translation of past */ function get_poke_verbs() { 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')), ); /** * @hooks poke_verbs * * \e array associative array with another array as value */ call_hooks('poke_verbs', $arr); } return $arr; } /** * @brief Get an array of mood verbs. * * @return array * * \e index is the verb * * \e value is the translated verb */ function get_mood_verbs() { $arr = [ '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'), ]; /** * @hooks mood_verbs * * \e array associative array with mood verbs */ call_hooks('mood_verbs', $arr); return $arr; } /** * @brief Function to list all smilies, both internal and from addons. * * @return Returns array with keys 'texts' and 'icons' */ function list_smilies($default_only = false) { $texts = array( '<3', '</3', ':-)', ';-)', ':-(', ':-P', ':-p', ':-"', ':-"', ':-x', ':-X', ':-D', '8-|', '8-O', ':-O', '\\o/', 'o.O', 'O.o', 'o_O', 'O_o', ":'(", ":-!", ":-/", ":-[", "8-)", ':beer', ':homebrew', ':coffee', ':facepalm', ':like', ':dislike' ); $icons = array( '<3', '</3', ':-)', ';-)', ':-(', ':-P', ':-p', ':-\', ':-\', ':-x', ':-X', ':-D', '8-|', '8-O', ':-O', '\\o/', 'o.O', 'O.o', 'o_O', 'O_o', ':\'(', ':-!', ':-/', ':-[', '8-)', ':beer', ':homebrew', ':coffee', ':facepalm', ':like', ':dislike' ); $params = array('texts' => $texts, 'icons' => $icons); if($default_only) return $params; 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)>.*?}ism', 'smile_shield', $s); $s = preg_replace_callback('/<[a-z]+ .*?>/ism', 'smile_shield', $s); $params = list_smilies(); $params['string'] = $s; if ($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('//ism', 'smile_unshield', $s); return $s; } /** * @brief * * @param array $m * @return string */ function smile_shield($m) { return ''; } 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 .= '<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) { return; } 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=&owa=1&hash=' . $item['author_xchan'] . '&dest=' . $r['href'] . '/' . $r['revision']; //$s .= '' . $icon . ''; $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($term)) continue; if($t['url'] && strpos($item['body'], $t['url'])) continue; if($s) $s .= ' '; $s .= ' ' . $term . ''; } } 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 .= ' '; $s .= ' ' . $term . ''; } } 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); $arr = [ 'lat' => trim(substr($coord, 0, strpos($coord, ' '))), 'lon' => trim(substr($coord, strpos($coord, ' ')+1)), 'html' => '' ]; /** * @hooks generate_map * * \e string \b lat * * \e string \b lon * * \e string \b html the parsed HTML to return */ call_hooks('generate_map', $arr); return (($arr['html']) ? $arr['html'] : $coord); } function generate_named_map($location) { $arr = [ 'location' => $location, 'html' => '' ]; /** * @hooks generate_named_map * * \e string \b location * * \e string \b html the parsed HTML to return */ call_hooks('generate_named_map', $arr); return (($arr['html']) ? $arr['html'] : $location); } function prepare_body(&$item,$attach = false,$opts = 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 .= '
' . $s; } // if original photo width is > 640px make it a cover photo if($object['link'][0]['width'] && $object['link'][0]['width'] > 640) { $scale = ((($object['link'][1]['width'] == 1024) || ($object['link'][1]['height'] == 1024)) ? 1 : 0); $photo = ''; } } if($item['item_obscured']) { $s .= prepare_binary($item); } else { $s .= prepare_text($item['body'],$item['mimetype'], $opts); } $event = (($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']; if(! $attach) { return $s; } if(strpos($s,'
') !== false && $item['coord']) { $x = generate_map(trim($item['coord'])); if($x) { $s = preg_replace('/\
/','$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 $prep_arr; } function prepare_binary($item) { return replace_macros(get_markup_template('item_binary.tpl'), [ '$download' => t('Download binary/encrypted content'), '$url' => z_root() . '/viewsrc/' . $item['id'] . '/download' ]); } /** * @brief Given a text string, convert from bbcode to html and add smilie icons. * * @param string $text * @param string $content_type (optional) default text/bbcode * @param boolean $cache (optional) default false * * @return string */ function prepare_text($text, $content_type = 'text/bbcode', $opts = false) { switch($content_type) { case 'text/plain': $s = escape_tags($text); break; case 'text/html': $s = $text; break; case 'text/markdown': $text = Zlib\MarkdownSoap::unescape($text); $s = MarkdownExtra::defaultTransform($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, [ 'cache' => $cache ]); else $s = smilies(bbcode($text, ((is_array($opts)) ? $opts : [] ))); $s = zidify_links($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 .= '' . "\n" ; } } } return $hubxml; } /** * @brief Return atom link elements for salmon endpoints * * @param string $nick * @return string */ function feed_salmonlinks($nick) { $salmon = '' . "\n" ; // old style links that status.net still needed as of 12/2010 $salmon .= ' ' . "\n" ; $salmon .= ' ' . "\n" ; return $salmon; } function get_plink($item,$conversation_mode = true) { if($conversation_mode) $key = 'plink'; else $key = 'llink'; $zidify = true; if(array_key_exists('author',$item) && $item['author']['xchan_network'] !== 'zot') $zidify = false; if(x($item,$key)) { return array( 'href' => (($zidify) ? zid($item[$key]) : $item[$key]), 'title' => t('Link to Source'), ); } else { return false; } } function unamp($s) { return str_replace('&', '&', $s); } function layout_select($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" ' : ''); $options .= ''; foreach($r as $rr) { $selected = (($rr['mid'] == $current) ? ' selected="selected" ' : ''); $options .= ''; } } $o = replace_macros(get_markup_template('field_select_raw.tpl'), array( '$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', $choices = null, $element = 'mimetype') { $x = (($choices) ? $choices : [ 'text/bbcode' => t('BBcode'), 'text/html' => t('HTML'), 'text/markdown' => t('Markdown'), 'text/plain' => t('Text'), 'application/x-pdl' => t('Comanche Layout') ]); if((App::$is_sys) || (channel_codeallowed($channel_id) && $channel_id == local_channel())){ $x['application/x-php'] = t('PHP'); } foreach($x as $y => $z) { $selected = (($y == $current) ? ' selected="selected" ' : ''); $options .= ''; } $o = replace_macros(get_markup_template('field_select_raw.tpl'), array( '$field' => array( $element, 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 '
'; } 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 = "/]*) href=\"(?!http|https|\/)([^\"]*)\"/"; $replace = " 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(! $s) return ''; // WARNING: This regex may not work in a federated environment. // You will probably want something like // preg_replace('/([^a-z0-9\_])/','',strtolower($s)); $r = preg_replace('/([^a-z0-9\-\_])/','',strtolower($s)); $x = [ 'input' => $s, 'output' => $r ]; call_hooks('legal_webbie',$x); return $x['output']; } function legal_webbie_text() { // WARNING: This will not work in a federated environment. $s = t('a-z, 0-9, -, and _ only'); $x = [ 'text' => $s ]; call_hooks('legal_webbie_text',$x); return $x['text']; } function check_webbie($arr) { // These names conflict with the CalDAV server $taken = [ 'principals', 'addressbooks', 'calendars' ]; $reservechan = get_config('system','reserved_channels'); if(strlen($reservechan)) { $taken = array_merge($taken,explode(',', $reservechan)); } $str = ''; if(count($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(',', $t)); } /** * @brief array_elm_to_str($arr,$elm,$delim = ',') extract unique individual elements from an array of arrays and return them as a string separated by a delimiter * similar to ids_to_querystr, but allows a different delimiter instead of a db-quote option * empty elements (evaluated after trim()) are ignored. * @param $arr array * @param $elm array key to extract from sub-array * @param $delim string default ',' * @param $each filter function to apply to each element before evaluation, default is 'trim'. * @returns string */ function array_elm_to_str($arr,$elm,$delim = ',',$each = 'trim') { $tmp = []; if($arr && is_array($arr)) { foreach($arr as $x) { if(is_array($x) && array_key_exists($elm,$x)) { $z = $each($x[$elm]); if(($z) && (! in_array($z,$tmp))) { $tmp[] = $z; } } } } return implode($delim,$tmp); } function trim_and_unpunify($s) { return unpunify(trim($s)); } /** * @brief Fetches xchan and hubloc data for an array of items with only an * author_xchan and owner_xchan. * * If $abook is true also include the abook info. This is needed in the API to * save extra per item lookups there. * * @param[in,out] array &$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', 'anon')"); 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 (" . protect_sprintf(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; } /** * @brief If $escape is true, dbesc() each element before adding quotes. * * @param[in,out] array &$arr * @param boolean $escape (optional) default false */ function stringify_array_elms(&$arr, $escape = false) { for($x = 0; $x < count($arr); $x ++) $arr[$x] = "'" . (($escape) ? dbesc($arr[$x]) : $arr[$x]) . "'"; } /** * @brief Similar to stringify_array_elms but returns a string. If $escape is true, dbesc() each element before adding quotes. * * @param array $arr * @param boolean $escape (optional) default false * @return string */ function stringify_array($arr, $escape = false) { if($arr) { stringify_array_elms($arr); return(implode(',',$arr)); } return EMPTY_STR; } /** * @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() { $channel = channelx_by_n(App::$profile['profile_uid']); $sys = false; if(App::$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_FORUM : $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(! $replaced) { // base tag has the tags name only if((substr($tag,0,7) === '#"') && (substr($tag,-6,6) === '"')) { $basetag = substr($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('/(? $replaced, 'termtype' => $termtype, 'term' => $basetag, 'url' => $url, 'contact' => $r[0] ]; } //is it a person tag? $grouptag = false; if(strpos($tag,'!') === 0) { $grouptag = true; } if(strpos($tag,'@') === 0 || $grouptag) { // The @! tag will alter permissions $exclusive = (((! $grouptag) && (strpos($tag,'!') === 1) && (! $diaspora)) ? true : false); if(($grouptag) && (strpos($tag,'!!') === 0)) { $exclusive = true; } //is it already replaced? if(strpos($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; $trailing_plus_name = false; if(substr($name,0,1) === '{' && substr($name,-1,1) === '}') { $newname = substr($name,1); $newname = substr($newname,0,-1); $r = q("select * from xchan where xchan_addr = '%s' or xchan_url = '%s' limit 1", dbesc($newname), dbesc($newname) ); } if(! $r) { // @channel+ is a forum or network delivery tag if(substr($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 $tagcid = urldecode(substr($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) === '"') && (substr($name,-6,6) === '"')) { $newname = substr($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 = $profile; if($grouptag) { $newtag = '!' . (($exclusive) ? '!' : '') . '[zrl=' . $profile . ']' . $newname . '[/zrl]'; $body = str_replace('!' . (($exclusive) ? '!' : '') . $name, $newtag, $body); } else { $newtag = '@' . (($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-o', 'multipart/mixed' => 'fa-folder-o', //dirs in attach use this mime type //Common file 'application/octet-stream' => 'fa-file-o', //Text 'text/plain' => 'fa-file-text-o', 'text/markdown' => 'fa-file-text-o', 'text/bbcode' => 'fa-file-text-o', 'text/html' => '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' ); $catMap = [ 'application' => 'fa-file-code-o', 'multipart' => 'fa-folder', 'audio' => 'fa-file-audio-o', 'video' => 'fa-file-video-o', 'text' => 'fa-file-text-o', 'image' => 'fa=file-picture-o', 'message' => 'fa-file-text-o' ]; $iconFromType = ''; if (array_key_exists($type, $iconMap)) { $iconFromType = $iconMap[$type]; } else { $parts = explode('/',$type); if($parts[0] && $catMap[$parts[0]]) { $iconFromType = $catMap[$parts[0]]; } } if(! $iconFromType) { $iconFromType = 'fa-file-o'; } 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)) $item = '<' . notags(trim(urldecode($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>" => 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 iconfig 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 .= ''; 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 $lang Which language should be highlighted * @return string * Important: The returned text has the text pattern 'http' translated to '%eY9-!' which should be converted back * after further processing. This was done to prevent oembed links from occurring inside code blocks. * See include/bbcode.php */ function text_highlight($s, $lang) { if($lang === 'js') $lang = 'javascript'; if($lang === 'json') { $lang = 'javascript'; if(! strpos(trim($s), "\n")) $s = jindent($s); } $arr = [ 'text' => $s, 'language' => $lang, 'success' => false ]; /** * @hooks text_highlight * * \e string \b text * * \e string \b language * * \e boolean \b success default false */ call_hooks('text_highlight', $arr); if($arr['success']) $o = $arr['text']; else $o = $s; $o = str_replace('http','%eY9-!',$o); return('' . $o . ''); } // function to convert multi-dimensional array to xml // create new instance of simplexml // $xml = new SimpleXMLElement(''); // function callback // array2XML($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('<' . $root_elem . '>', null, false); array2XML($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)); } } } /** * @brief Inserts an array into $table. * * @TODO Why is this function in include/text.php? * * @param string $table * @param array $arr * @return boolean|PDOStatement */ function create_table_from_array($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 $r; } function share_shield($m) { return str_replace($m[1],'!=+=+=!' . base64url_encode($m[1]) . '=+!=+!=',$m[0]); } function share_unshield($m) { $x = str_replace(array('!=+=+=!','=+!=+!='),array('',''),$m[1]); return str_replace($m[1], base64url_decode($x), $m[0]); } function cleanup_bbcode($body) { /** * fix naked links by passing through a callback to see if this is a hubzilla site * (already known to us) which will get a zrl, otherwise link with url, add bookmark tag to both. * First protect any url inside certain bbcode tags so we don't double link it. */ $body = preg_replace_callback('/\[code(.*?)\[\/(code)\]/ism','\red_escape_codeblock',$body); $body = preg_replace_callback('/\[url(.*?)\[\/(url)\]/ism','\red_escape_codeblock',$body); $body = preg_replace_callback('/\[zrl(.*?)\[\/(zrl)\]/ism','\red_escape_codeblock',$body); $body = preg_replace_callback("/([^\]\='".'"'."\/]|^|\#\^)(https?\:\/\/[a-zA-Z0-9\pL\:\/\-\?\&\;\.\=\@\_\~\#\%\$\!\\ +\,\(\)]+)/ismu", '\nakedoembed', $body); $body = preg_replace_callback("/([^\]\='".'"'."\/]|^|\#\^)(https?\:\/\/[a-zA-Z0-9\pL\:\/\-\?\&\;\.\=\@\_\~\#\%\$\!\\ +\,\(\)]+)/ismu", '\red_zrl_callback', $body); $body = preg_replace_callback('/\[\$b64zrl(.*?)\[\/(zrl)\]/ism','\red_unescape_codeblock',$body); $body = preg_replace_callback('/\[\$b64url(.*?)\[\/(url)\]/ism','\red_unescape_codeblock',$body); $body = preg_replace_callback('/\[\$b64code(.*?)\[\/(code)\]/ism','\red_unescape_codeblock',$body); // fix any img tags that should be zmg $body = preg_replace_callback('/\[img(.*?)\](.*?)\[\/img\]/ism','\red_zrlify_img_callback',$body); $body = bb_translate_video($body); /** * Fold multi-line [code] sequences */ $body = preg_replace('/\[\/code\]\s*\[code\]/ism',"\n",$body); $body = scale_external_images($body,false); return $body; } function gen_link_id($mid) { if(strpbrk($mid,':/&?<>"\'') !== false) return 'b64.' . base64url_encode($mid); return $mid; } // callback for array_walk function array_trim(&$v,$k) { $v = trim($v); } function array_escape_tags(&$v,$k) { $v = escape_tags($v); } function ellipsify($s,$maxlen) { if($maxlen & 1) $maxlen --; if($maxlen < 4) $maxlen = 4; if(mb_strlen($s) < $maxlen) return $s; return mb_substr($s,0,$maxlen / 2) . '...' . mb_substr($s,mb_strlen($s) - ($maxlen / 2)); } function purify_filename($s) { if(($s[0] === '.') || strpos($s,'/') !== false) return ''; return $s; } // callback for sorting the settings/featured entries. function featured_sort($a,$b) { $s1 = substr($a,strpos($a,'id='),20); $s2 = substr($b,strpos($b,'id='),20); return(strcmp($s1,$s2)); } // Be aware that punify will convert domain names and pathnames function punify($s) { require_once('vendor/simplepie/simplepie/idn/idna_convert.class.php'); $x = new idna_convert(['encoding' => 'utf8']); return $x->encode($s); } // Be aware that unpunify will only convert domain names and not pathnames function unpunify($s) { require_once('vendor/simplepie/simplepie/idn/idna_convert.class.php'); $x = new idna_convert(['encoding' => 'utf8']); return $x->decode($s); } function unique_multidim_array($array, $key) { $temp_array = array(); $i = 0; $key_array = array(); foreach($array as $val) { if (!in_array($val[$key], $key_array)) { $key_array[$i] = $val[$key]; $temp_array[$i] = $val; } $i++; } return $temp_array; }