" . __FUNCTION__ . ": " . $e->getMessage() . ""; killme(); } $a->save_timestamp($stamp1, "rendering"); return $output; } /** * @brief Generates a pseudo-random string of hexadecimal characters * * @param int $size * @return string */ function random_string($size = 64) { $byte_size = ceil($size / 2); $bytes = random_bytes($byte_size); $return = substr(bin2hex($bytes), 0, $size); return $return; } /** * 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); } /** * 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 $word; } /** * escape text ($str) for XML transport * @param string $str * @return string Escaped text. */ function xmlify($str) { /// @TODO deprecated code found? /* $buffer = ''; $len = mb_strlen($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 = mb_ereg_replace("&", "&", $str); $buffer = mb_ereg_replace("'", "'", $buffer); $buffer = mb_ereg_replace('"', """, $buffer); $buffer = mb_ereg_replace("<", "<", $buffer); $buffer = mb_ereg_replace(">", ">", $buffer); */ $buffer = htmlspecialchars($str, ENT_QUOTES, "UTF-8"); $buffer = trim($buffer); return $buffer; } /** * undo an xmlify * @param string $s xml escaped text * @return string unescaped text */ function unxmlify($s) { /// @TODO deprecated code found? // $ret = str_replace('&','&', $s); // $ret = str_replace(array('<','>','"','''),array('<','>','"',"'"),$ret); /*$ret = mb_ereg_replace('&', '&', $s); $ret = mb_ereg_replace(''', "'", $ret); $ret = mb_ereg_replace('"', '"', $ret); $ret = mb_ereg_replace('<', "<", $ret); $ret = mb_ereg_replace('>', ">", $ret); */ $ret = htmlspecialchars_decode($s, ENT_QUOTES); return $ret; } /** * @brief Paginator function. Pushes relevant links in a pager array structure. * * Links are generated depending on the current page and the total number of items. * Inactive links (like "first" and "prev" on page 1) are given the "disabled" class. * Current page link is given the "active" CSS class * * @param App $a App instance * @param int $count [optional] item count (used with minimal pager) * @return Array data for pagination template */ function paginate_data(App $a, $count = null) { $stripped = preg_replace('/([&?]page=[0-9]*)/', '', $a->query_string); $stripped = str_replace('q=', '', $stripped); $stripped = trim($stripped, '/'); $pagenum = $a->pager['page']; if (($a->page_offset != '') && !preg_match('/[?&].offset=/', $stripped)) { $stripped .= '&offset=' . urlencode($a->page_offset); } $url = $stripped; $data = array(); function _l(&$d, $name, $url, $text, $class = '') { if (strpos($url, '?') === false && ($pos = strpos($url, '&')) !== false) { $url = substr($url, 0, $pos) . '?' . substr($url, $pos + 1); } $d[$name] = array('url' => $url, 'text' => $text, 'class' => $class); } if (!is_null($count)) { // minimal pager (newer / older) $data['class'] = 'pager'; _l($data, 'prev', $url . '&page=' . ($a->pager['page'] - 1), t('newer'), 'previous' . ($a->pager['page'] == 1 ? ' disabled' : '')); _l($data, 'next', $url . '&page=' . ($a->pager['page'] + 1), t('older'), 'next' . ($count <= 0 ? ' disabled' : '')); } else { // full pager (first / prev / 1 / 2 / ... / 14 / 15 / next / last) $data['class'] = 'pagination'; if ($a->pager['total'] > $a->pager['itemspage']) { _l($data, 'first', $url . '&page=1', t('first'), $a->pager['page'] == 1 ? 'disabled' : ''); _l($data, 'prev', $url . '&page=' . ($a->pager['page'] - 1), t('prev'), $a->pager['page'] == 1 ? 'disabled' : ''); $numpages = $a->pager['total'] / $a->pager['itemspage']; $numstart = 1; $numstop = $numpages; // Limit the number of displayed page number buttons. if ($numpages > 8) { $numstart = (($pagenum > 4) ? ($pagenum - 4) : 1); $numstop = (($pagenum > ($numpages - 7)) ? $numpages : ($numstart + 8)); } $pages = array(); for ($i = $numstart; $i <= $numstop; $i++) { if ($i == $a->pager['page']) { _l($pages, $i, '#', $i, 'current active'); } else { _l($pages, $i, $url . '&page='. $i, $i, 'n'); } } if (($a->pager['total'] % $a->pager['itemspage']) != 0) { if ($i == $a->pager['page']) { _l($pages, $i, '#', $i, 'current active'); } else { _l($pages, $i, $url . '&page=' . $i, $i, 'n'); } } $data['pages'] = $pages; $lastpage = (($numpages > intval($numpages)) ? intval($numpages)+1 : $numpages); _l($data, 'next', $url . '&page=' . ($a->pager['page'] + 1), t('next'), $a->pager['page'] == $lastpage ? 'disabled' : ''); _l($data, 'last', $url . '&page=' . $lastpage, t('last'), $a->pager['page'] == $lastpage ? 'disabled' : ''); } } return $data; } /** * Automatic pagination. * * To use, get the count of total items. * Then call $a->set_pager_total($number_items); * Optionally call $a->set_pager_itemspage($n) to the number of items to display on each page * Then call paginate($a) after the end of the display loop to insert the pager block on the page * (assuming there are enough items to paginate). * When using with SQL, the setting LIMIT %d, %d => $a->pager['start'],$a->pager['itemspage'] * will limit the results to the correct items for the current page. * The actual page handling is then accomplished at the application layer. * * @param App $a App instance * @return string html for pagination #FIXME remove html */ function paginate(App $a) { $data = paginate_data($a); $tpl = get_markup_template("paginate.tpl"); return replace_macros($tpl, array("pager" => $data)); } /** * Alternative pager * @param App $a App instance * @param int $i * @return string html for pagination #FIXME remove html */ function alt_pager(App $a, $i) { $data = paginate_data($a, $i); $tpl = get_markup_template("paginate.tpl"); return replace_macros($tpl, array('pager' => $data)); } /** * Loader for infinite scrolling * @return string html for loader */ function scroll_loader() { $tpl = get_markup_template("scroll_loader.tpl"); return replace_macros($tpl, array( 'wait' => t('Loading more entries...'), 'end' => t('The end') )); } /** * Turn user/group ACLs stored as angle bracketed text into arrays * * @param string $s * @return array */ function expand_acl($s) { // turn string array of angle-bracketed elements into numeric array // e.g. "<1><2><3>" => array(1,2,3); $ret = array(); if (strlen($s)) { $t = str_replace('<', '', $s); $a = explode('>', $t); foreach ($a as $aa) { if (intval($aa)) { $ret[] = intval($aa); } } } return $ret; } /** * Wrap ACL elements in angle brackets for storage * @param string $item */ function sanitise_acl(&$item) { if (intval($item)) { $item = '<' . intval(notags(trim($item))) . '>'; } else { unset($item); } } /** * Convert an ACL array to a storable string * * Normally ACL permissions will be an array. * We'll also allow a comma-separated string. * * @param string|array $p * @return string */ function perms2str($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; } /** * generate a guaranteed unique (for this domain) item ID for ATOM * safe from birthday paradox * * @param string $hostname * @param int $uid * @return string */ function item_new_uri($hostname, $uid, $guid = "") { do { if ($guid == "") { $hash = get_guid(32); } else { $hash = $guid; $guid = ""; } $uri = "urn:X-dfrn:" . $hostname . ':' . $uid . ':' . $hash; $dups = dba::exists('item', array('uri' => $uri)); } while ($dups == true); return $uri; } /** * Generate a guaranteed unique photo ID. * safe from birthday paradox * * @return string */ 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 (DBM::is_result($r)) { $found = true; } } while ($found == true); return $resource; } /** * @deprecated * wrapper to load a view template, checking for alternate * languages before falling back to the default * * @global string $lang * @global App $a * @param string $s view name * @return string */ function load_view_file($s) { global $lang, $a; if (! isset($lang)) { $lang = 'en'; } $b = basename($s); $d = dirname($s); if (file_exists("$d/$lang/$b")) { $stamp1 = microtime(true); $content = file_get_contents("$d/$lang/$b"); $a->save_timestamp($stamp1, "file"); return $content; } $theme = current_theme(); if (file_exists("$d/theme/$theme/$b")) { $stamp1 = microtime(true); $content = file_get_contents("$d/theme/$theme/$b"); $a->save_timestamp($stamp1, "file"); return $content; } $stamp1 = microtime(true); $content = file_get_contents($s); $a->save_timestamp($stamp1, "file"); return $content; } /** * load a view template, checking for alternate * languages before falling back to the default * * @global string $lang * @param string $s view path * @return string */ function get_intltext_template($s) { global $lang; $a = get_app(); $engine = ''; if ($a->theme['template_engine'] === 'smarty3') { $engine = "/smarty3"; } if (! isset($lang)) { $lang = 'en'; } if (file_exists("view/lang/$lang$engine/$s")) { $stamp1 = microtime(true); $content = file_get_contents("view/lang/$lang$engine/$s"); $a->save_timestamp($stamp1, "file"); return $content; } elseif (file_exists("view/lang/en$engine/$s")) { $stamp1 = microtime(true); $content = file_get_contents("view/lang/en$engine/$s"); $a->save_timestamp($stamp1, "file"); return $content; } else { $stamp1 = microtime(true); $content = file_get_contents("view$engine/$s"); $a->save_timestamp($stamp1, "file"); return $content; } } /** * load template $s * * @param string $s * @param string $root * @return string */ function get_markup_template($s, $root = '') { $stamp1 = microtime(true); $a = get_app(); $t = $a->template_engine(); try { $template = $t->getTemplateFile($s, $root); } catch (Exception $e) { echo "
" . __FUNCTION__ . ": " . $e->getMessage() . ""; killme(); } $a->save_timestamp($stamp1, "file"); return $template; } /** * * @param App $a * @param string $filename * @param string $root * @return string */ function get_template_file($a, $filename, $root = '') { $theme = current_theme(); // Make sure $root ends with a slash / if ($root !== '' && substr($root, -1, 1) !== '/') { $root = $root . '/'; } if (file_exists("{$root}view/theme/$theme/$filename")) { $template_file = "{$root}view/theme/$theme/$filename"; } elseif (x($a->theme_info, "extends") && file_exists(sprintf('%sview/theme/%s}/%s', $root, $a->theme_info["extends"], $filename))) { $template_file = sprintf('%sview/theme/%s}/%s', $root, $a->theme_info["extends"], $filename); } elseif (file_exists("{$root}/$filename")) { $template_file = "{$root}/$filename"; } else { $template_file = "{$root}view/$filename"; } return $template_file; } /** * 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 value * @param string $s string to search * @return boolean True if found, False otherwise */ function attribute_contains($attr, $s) { $a = explode(' ', $attr); return (count($a) && in_array($s,$a)); } /* setup int->string log level map */ $LOGGER_LEVELS = array(); /** * @brief Logs the given message at the given log level * * log levels: * LOGGER_NORMAL (default) * LOGGER_TRACE * LOGGER_DEBUG * LOGGER_DATA * LOGGER_ALL * * @global App $a * @global array $LOGGER_LEVELS * @param string $msg * @param int $level */ function logger($msg, $level = 0) { $a = get_app(); global $LOGGER_LEVELS; // turn off logger in install mode if ( $a->module == 'install' || !dba::$connected ) { return; } $debugging = Config::get('system','debugging'); $logfile = Config::get('system','logfile'); $loglevel = intval(Config::get('system','loglevel')); if ( ! $debugging || ! $logfile || $level > $loglevel ) { return; } if (count($LOGGER_LEVELS) == 0) { foreach (get_defined_constants() as $k => $v) { if (substr($k, 0, 7) == "LOGGER_") { $LOGGER_LEVELS[$v] = substr($k, 7, 7); } } } $process_id = session_id(); if ($process_id == '') { $process_id = get_app()->process_id; } $callers = debug_backtrace(); $logline = sprintf("%s@%s\t[%s]:%s:%s:%s\t%s\n", datetime_convert('UTC', 'UTC', 'now', 'Y-m-d\TH:i:s\Z'), $process_id, $LOGGER_LEVELS[$level], basename($callers[0]['file']), $callers[0]['line'], $callers[1]['function'], $msg ); $stamp1 = microtime(true); @file_put_contents($logfile, $logline, FILE_APPEND); $a->save_timestamp($stamp1, "file"); } /** * @brief An alternative logger for development. * Works largely as logger() but allows developers * to isolate particular elements they are targetting * personally without background noise * * log levels: * LOGGER_NORMAL (default) * LOGGER_TRACE * LOGGER_DEBUG * LOGGER_DATA * LOGGER_ALL * * @global App $a * @global array $LOGGER_LEVELS * @param string $msg * @param int $level */ function dlogger($msg, $level = 0) { $a = get_app(); // turn off logger in install mode if ( $a->module == 'install' || !dba::$connected ) { return; } $logfile = Config::get('system','dlogfile'); if (! $logfile) { return; } if (count($LOGGER_LEVELS) == 0) { foreach (get_defined_constants() as $k => $v) { if (substr($k, 0, 7) == "LOGGER_") { $LOGGER_LEVELS[$v] = substr($k, 7, 7); } } } $process_id = session_id(); if ($process_id == '') { $process_id = get_app()->process_id; } $callers = debug_backtrace(); $logline = sprintf("%s@\t%s:\t%s:\t%s\t%s\t%s\n", datetime_convert(), $process_id, basename($callers[0]['file']), $callers[0]['line'], $callers[1]['function'], $msg ); $stamp1 = microtime(true); @file_put_contents($logfile, $logline, FILE_APPEND); $a->save_timestamp($stamp1, "file"); } /** * Compare activity uri. Knows about activity namespace. * * @param string $haystack * @param string $needle * @return boolean */ function activity_match($haystack,$needle) { return (($haystack === $needle) || ((basename($needle) === $haystack) && strstr($needle, NAMESPACE_ACTIVITY_SCHEMA))); } /** * @brief Pull out all #hashtags and @person tags from $string. * * We also get @person@domain.com - which would make * the regex quite complicated as tags can also * end a sentence. So we'll run through our results * and strip the period from any tags which end with one. * Returns array of tags found, or empty array. * * @param string $string Post content * @return array List of tag and person names */ function get_tags($string) { $ret = array(); // Convert hashtag links to hashtags $string = preg_replace('/#\[url\=([^\[\]]*)\](.*?)\[\/url\]/ism', '#$2', $string); // ignore anything in a code block $string = preg_replace('/\[code\](.*?)\[\/code\]/sm', '', $string); // Force line feeds at bbtags $string = str_replace(array('[', ']'), array("\n[", "]\n"), $string); // ignore anything in a bbtag $string = preg_replace('/\[(.*?)\]/sm', '', $string); // Match full names against @tags including the space between first and last // We will look these up afterward to see if they are full names or not recognisable. if (preg_match_all('/(@[^ \x0D\x0A,:?]+ [^ \x0D\x0A@,:?]+)([ \x0D\x0A@,:?]|$)/', $string, $matches)) { foreach ($matches[1] as $match) { if (strstr($match, ']')) { // we might be inside a bbcode color tag - leave it alone continue; } if (substr($match, -1, 1) === '.') { $ret[] = substr($match, 0, -1); } else { $ret[] = $match; } } } // Otherwise pull out single word tags. These can be @nickname, @first_last // and #hash tags. if (preg_match_all('/([!#@][^\^ \x0D\x0A,;:?]+)([ \x0D\x0A,;:?]|$)/', $string, $matches)) { foreach ($matches[1] as $match) { if (strstr($match, ']')) { // we might be inside a bbcode color tag - leave it alone continue; } if (substr($match, -1, 1) === '.') { $match = substr($match,0,-1); } // ignore strictly numeric tags like #1 if ((strpos($match, '#') === 0) && ctype_digit(substr($match, 1))) { continue; } // try not to catch url fragments if (strpos($string, $match) && preg_match('/[a-zA-z0-9\/]/', substr($string, strpos($string, $match) - 1, 1))) { continue; } $ret[] = $match; } } return $ret; } /** * quick and dirty quoted_printable encoding * * @param string $s * @return string */ function qp($s) { return str_replace("%", "=", rawurlencode($s)); } /** * Get html for contact block. * * @template contact_block.tpl * @hook contact_block_end (contacts=>array, output=>string) * @return string */ function contact_block() { $o = ''; $a = get_app(); $shown = PConfig::get($a->profile['uid'], 'system', 'display_friend_count', 24); if ($shown == 0) { return; } if (!is_array($a->profile) || $a->profile['hide-friends']) { return $o; } $r = q("SELECT COUNT(*) AS `total` FROM `contact` WHERE `uid` = %d AND NOT `self` AND NOT `blocked` AND NOT `pending` AND NOT `hidden` AND NOT `archive` AND `network` IN ('%s', '%s', '%s')", intval($a->profile['uid']), dbesc(NETWORK_DFRN), dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DIASPORA) ); if (DBM::is_result($r)) { $total = intval($r[0]['total']); } if (!$total) { $contacts = t('No contacts'); $micropro = null; } else { // Splitting the query in two parts makes it much faster $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND NOT `self` AND NOT `blocked` AND NOT `pending` AND NOT `hidden` AND NOT `archive` AND `network` IN ('%s', '%s', '%s') ORDER BY RAND() LIMIT %d", intval($a->profile['uid']), dbesc(NETWORK_DFRN), dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DIASPORA), intval($shown) ); if (DBM::is_result($r)) { $contacts = array(); foreach ($r AS $contact) { $contacts[] = $contact["id"]; } $r = q("SELECT `id`, `uid`, `addr`, `url`, `name`, `thumb`, `network` FROM `contact` WHERE `id` IN (%s)", dbesc(implode(",", $contacts))); if (DBM::is_result($r)) { $contacts = sprintf(tt('%d Contact','%d Contacts', $total),$total); $micropro = Array(); foreach ($r as $rr) { $micropro[] = micropro($rr,true,'mpfriend'); } } } } $tpl = get_markup_template('contact_block.tpl'); $o = replace_macros($tpl, array( '$contacts' => $contacts, '$nickname' => $a->profile['nickname'], '$viewcontacts' => t('View Contacts'), '$micropro' => $micropro, )); $arr = array('contacts' => $r, 'output' => $o); call_hooks('contact_block_end', $arr); return $o; } /** * @brief Format contacts as picture links or as texxt links * * @param array $contact Array with contacts which contains an array with * int 'id' => The ID of the contact * int 'uid' => The user ID of the user who owns this data * string 'name' => The name of the contact * string 'url' => The url to the profile page of the contact * string 'addr' => The webbie of the contact (e.g.) username@friendica.com * string 'network' => The network to which the contact belongs to * string 'thumb' => The contact picture * string 'click' => js code which is performed when clicking on the contact * @param boolean $redirect If true try to use the redir url if it's possible * @param string $class CSS class for the * @param boolean $textmode If true display the contacts as text links * if false display the contacts as picture links * @return string Formatted html */ function micropro($contact, $redirect = false, $class = '', $textmode = false) { // Use the contact URL if no address is available if ($contact["addr"] == "") { $contact["addr"] = $contact["url"]; } $url = $contact['url']; $sparkle = ''; $redir = false; if ($redirect) { $a = get_app(); $redirect_url = 'redir/' . $contact['id']; if (local_user() && ($contact['uid'] == local_user()) && ($contact['network'] === NETWORK_DFRN)) { $redir = true; $url = $redirect_url; $sparkle = ' sparkle'; } else { $url = zrl($url); } } // If there is some js available we don't need the url if (x($contact, 'click')) { $url = ''; } return replace_macros(get_markup_template(($textmode)?'micropro_txt.tpl':'micropro_img.tpl'),array( '$click' => (($contact['click']) ? $contact['click'] : ''), '$class' => $class, '$url' => $url, '$photo' => proxy_url($contact['thumb'], false, PROXY_SIZE_THUMB), '$name' => $contact['name'], 'title' => $contact['name'] . ' [' . $contact['addr'] . ']', '$parkle' => $sparkle, '$redir' => $redir, )); } /** * search box * * @param string $s search query * @param string $id html id * @param string $url search url * @param boolean $savedsearch show save search button */ function search($s, $id = 'search-box', $url = 'search', $save = false, $aside = true) { $a = get_app(); $values = array( '$s' => htmlspecialchars($s), '$id' => $id, '$action_url' => $url, '$search_label' => t('Search'), '$save_label' => t('Save'), '$savedsearch' => Feature::isEnabled(local_user(),'savedsearch'), '$search_hint' => t('@name, !forum, #tags, content'), ); if (!$aside) { $values['$searchoption'] = array( t("Full Text"), t("Tags"), t("Contacts")); if (Config::get('system','poco_local_search')) { $values['$searchoption'][] = t("Forums"); } } return replace_macros(get_markup_template('searchbox.tpl'), $values); } /** * @brief Check for a valid email string * * @param string $email_address * @return boolean */ function valid_email($email_address) { return preg_match('/^[_a-zA-Z0-9\-\+]+(\.[_a-zA-Z0-9\-\+]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)+$/', $email_address); } /** * Replace naked text hyperlink with HTML formatted hyperlink * * @param string $s */ function linkify($s) { $s = preg_replace("/(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\'\%\$\!\+]*)/", ' $1', $s); $s = preg_replace("/\<(.*?)(src|href)=(.*?)\&\;(.*?)\>/ism",'<$1$2=$3&$4>',$s); return $s; } /** * Load poke verbs * * @return array index is present tense verb value is array containing past tense verb, translation of present, translation of past * @hook poke_verbs pokes array */ function get_poke_verbs() { // index is present tense verb // value is array containing past tense verb, translation of present, translation of past $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; } /** * @brief Translate days and months names. * * @param string $s String with day or month name. * @return string Translated string. */ function day_translate($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 Translate short days and months names. * * @param string $s String with short day or month name. * @return string Translated string. */ function day_short_translate($s) { $ret = str_replace(array('Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'), array(t('Mon'), t('Tue'), t('Wed'), t('Thu'), t('Fri'), t('Sat'), t('Sun')), $s); $ret = str_replace(array('Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov','Dec'), array(t('Jan'), t('Feb'), t('Mar'), t('Apr'), t('May'), ('Jun'), t('Jul'), t('Aug'), t('Sep'), t('Oct'), t('Nov'), t('Dec')), $ret); return $ret; } /** * Normalize url * * @param string $url * @return string */ function normalise_link($url) { $ret = str_replace(array('https:', '//www.'), array('http:', '//'), $url); return rtrim($ret,'/'); } /** * Compare two URLs to see if they are the same, but ignore * slight but hopefully insignificant differences such as if one * is https and the other isn't, or if one is www.something and * the other isn't - and also ignore case differences. * * @param string $a first url * @param string $b second url * @return boolean True if the URLs match, otherwise False * */ function link_compare($a, $b) { return (strcasecmp(normalise_link($a), normalise_link($b)) === 0); } /** * @brief Find any non-embedded images in private items and add redir links to them * * @param App $a * @param array &$item The field array of an item row */ function redir_private_images($a, &$item) { $matches = false; $cnt = preg_match_all('|\[img\](http[^\[]*?/photo/[a-fA-F0-9]+?(-[0-9]\.[\w]+?)?)\[\/img\]|', $item['body'], $matches, PREG_SET_ORDER); if ($cnt) { foreach ($matches as $mtch) { if (strpos($mtch[1], '/redir') !== false) { continue; } if ((local_user() == $item['uid']) && ($item['private'] != 0) && ($item['contact-id'] != $a->contact['id']) && ($item['network'] == NETWORK_DFRN)) { $img_url = 'redir?f=1&quiet=1&url=' . urlencode($mtch[1]) . '&conurl=' . urlencode($item['author-link']); $item['body'] = str_replace($mtch[0], '[img]' . $img_url . '[/img]', $item['body']); } } } } function put_item_in_cache(&$item, $update = false) { if (($item["rendered-hash"] != hash("md5", $item["body"])) || ($item["rendered-hash"] == "") || ($item["rendered-html"] == "") || Config::get("system", "ignore_cache")) { // The function "redir_private_images" changes the body. // I'm not sure if we should store it permanently, so we save the old value. $body = $item["body"]; $a = get_app(); redir_private_images($a, $item); $item["rendered-html"] = prepare_text($item["body"]); $item["rendered-hash"] = hash("md5", $item["body"]); $item["body"] = $body; if ($update && ($item["id"] > 0)) { dba::update('item', array('rendered-html' => $item["rendered-html"], 'rendered-hash' => $item["rendered-hash"]), array('id' => $item["id"]), false); } } } /** * @brief 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. * * @param array $item * @param boolean $attach * @return string item body html * @hook prepare_body_init item array before any work * @hook prepare_body ('item'=>item array, 'html'=>body string) after first bbcode to html * @hook prepare_body_final ('item'=>item array, 'html'=>body string) after attach icons and blockquote special case handling (spoiler, author) */ function prepare_body(&$item, $attach = false, $preview = false) { $a = get_app(); call_hooks('prepare_body_init', $item); $searchpath = System::baseUrl() . "/search?tag="; $tags = array(); $hashtags = array(); $mentions = array(); // In order to provide theme developers more possibilities, event items // are treated differently. if ($item['object-type'] === ACTIVITY_OBJ_EVENT && isset($item['event-id'])) { $ev = format_event_item($item); return $ev; } if (!Config::get('system','suppress_tags')) { $taglist = dba::p("SELECT `type`, `term`, `url` FROM `term` WHERE `otype` = ? AND `oid` = ? AND `type` IN (?, ?) ORDER BY `tid`", intval(TERM_OBJ_POST), intval($item['id']), intval(TERM_HASHTAG), intval(TERM_MENTION)); while ($tag = dba::fetch($taglist)) { if ($tag["url"] == "") { $tag["url"] = $searchpath.strtolower($tag["term"]); } $orig_tag = $tag["url"]; $tag["url"] = best_link_url($item, $sp, $tag["url"]); if ($tag["type"] == TERM_HASHTAG) { if ($orig_tag != $tag["url"]) { $item['body'] = str_replace($orig_tag, $tag["url"], $item['body']); } $hashtags[] = "#".$tag["term"].""; $prefix = "#"; } elseif ($tag["type"] == TERM_MENTION) { $mentions[] = "@".$tag["term"].""; $prefix = "@"; } $tags[] = $prefix."".$tag["term"].""; } dba::close($taglist); } $item['tags'] = $tags; $item['hashtags'] = $hashtags; $item['mentions'] = $mentions; // Update the cached values if there is no "zrl=..." on the links. $update = (!local_user() && !remote_user() && ($item["uid"] == 0)); // Or update it if the current viewer is the intented viewer. if (($item["uid"] == local_user()) && ($item["uid"] != 0)) { $update = true; } put_item_in_cache($item, $update); $s = $item["rendered-html"]; $prep_arr = array('item' => $item, 'html' => $s, 'preview' => $preview); call_hooks('prepare_body', $prep_arr); $s = $prep_arr['html']; if (! $attach) { // Replace the blockquotes with quotes that are used in mails. $mailquote = '
'; $s = str_replace(array('', '', ''), array($mailquote, $mailquote, $mailquote), $s); return $s; } $as = ''; $vhead = false; $arr = explode('[/attach],', $item['attach']); if (count($arr)) { foreach ($arr as $r) { $matches = false; $icon = ''; $cnt = preg_match_all('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"|',$r ,$matches, PREG_SET_ORDER); if ($cnt) { foreach ($matches as $mtch) { $mime = $mtch[3]; if ((local_user() == $item['uid']) && ($item['contact-id'] != $a->contact['id']) && ($item['network'] == NETWORK_DFRN)) { $the_url = 'redir/' . $item['contact-id'] . '?f=1&url=' . $mtch[1]; } else { $the_url = $mtch[1]; } if (strpos($mime, 'video') !== false) { if (!$vhead) { $vhead = true; $a->page['htmlhead'] .= replace_macros(get_markup_template('videos_head.tpl'), array( '$baseurl' => System::baseUrl(), )); $a->page['end'] .= replace_macros(get_markup_template('videos_end.tpl'), array( '$baseurl' => System::baseUrl(), )); } $id = end(explode('/', $the_url)); $as .= replace_macros(get_markup_template('video_top.tpl'), array( '$video' => array( 'id' => $id, 'title' => t('View Video'), 'src' => $the_url, 'mime' => $mime, ), )); } $filetype = strtolower(substr($mime, 0, strpos($mime, '/'))); if ($filetype) { $filesubtype = strtolower(substr($mime, strpos($mime, '/') + 1)); $filesubtype = str_replace('.', '-', $filesubtype); } else { $filetype = 'unkn'; $filesubtype = 'unkn'; } $title = ((strlen(trim($mtch[4]))) ? escape_tags(trim($mtch[4])) : escape_tags($mtch[1])); $title .= ' ' . $mtch[2] . ' ' . t('bytes'); $icon = ''; $as .= '' . $icon . ''; } } } } if ($as != '') { $s .= ''.$as.''; } // Map. if (strpos($s, '') !== false && x($item, 'coord')) { $x = generate_map(trim($item['coord'])); if ($x) { $s = preg_replace('/\/', '$0' . $x, $s); } } // Look for spoiler. $spoilersearch = ''; // Remove line breaks before the spoiler. while ((strpos($s, "\n" . $spoilersearch) !== false)) { $s = str_replace("\n" . $spoilersearch, $spoilersearch, $s); } while ((strpos($s, "
" . $spoilersearch) !== false)) { $s = str_replace("
" . $spoilersearch, $spoilersearch, $s); } while ((strpos($s, $spoilersearch) !== false)) { $pos = strpos($s, $spoilersearch); $rnd = random_string(8); $spoilerreplace = '
' . sprintf(t('Click to open/close')) . ''. '