friendica/include/text.php

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<?php
/**
* @file include/text.php
*/
use Friendica\App;
use Friendica\Content\ContactSelector;
use Friendica\Content\Feature;
use Friendica\Content\Smilies;
use Friendica\Content\Text\BBCode;
use Friendica\Core\Addon;
use Friendica\Core\Config;
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use Friendica\Core\L10n;
use Friendica\Core\PConfig;
use Friendica\Core\Protocol;
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use Friendica\Core\System;
use Friendica\Database\DBA;
use Friendica\Model\Contact;
use Friendica\Model\Event;
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use Friendica\Model\Item;
use Friendica\Render\FriendicaSmarty;
use Friendica\Util\DateTimeFormat;
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use Friendica\Util\Map;
use Friendica\Util\Proxy as ProxyUtils;
use Friendica\Core\Logger;
require_once "include/conversation.php";
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/**
* This is our template processor
*
* @param string|FriendicaSmarty $s the string requiring macro substitution,
* or an instance of FriendicaSmarty
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* @param array $r key value pairs (search => replace)
* @return string substituted string
*/
function replace_macros($s, $r) {
$stamp1 = microtime(true);
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$a = get_app();
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// pass $baseurl to all templates
$r['$baseurl'] = System::baseUrl();
$t = $a->getTemplateEngine();
try {
$output = $t->replaceMacros($s, $r);
} catch (Exception $e) {
echo "<pre><b>" . __FUNCTION__ . "</b>: " . $e->getMessage() . "</pre>";
killme();
}
$a->saveTimestamp($stamp1, "rendering");
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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.
*
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* @param string $string Input string
* @return string Filtered string
*/
function notags($string) {
return str_replace(["<", ">"], ['[', ']'], $string);
// High-bit filter no longer used
// return str_replace(array("<",">","\xBA","\xBC","\xBE"), array('[',']','','',''), $string);
}
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/**
* 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);
}
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/**
* generate a string that's random, but usually pronounceable.
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* used to generate initial passwords
* @param int $len
* @return string
*/
function autoname($len) {
if ($len <= 0) {
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return '';
}
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$vowels = ['a','a','ai','au','e','e','e','ee','ea','i','ie','o','ou','u'];
if (mt_rand(0, 5) == 4) {
$vowels[] = 'y';
}
$cons = [
'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 = ['ck','ct','gn','ld','lf','lm','lt','mb','mm', 'mn','mp',
'nd','ng','nk','nt','rn','rp','rt'];
$noend = ['bl', 'br', 'cl','cr','dr','fl','fr','gl','gr',
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'kh', 'kl','kr','mn','pl','pr','rh','tr','qu','wh','q'];
$start = mt_rand(0,2);
if ($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 $noe) {
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$noelen = strlen($noe);
if ((strlen($word) > $noelen) && (substr($word, -$noelen) == $noe)) {
$word = autoname($len);
break;
}
}
return $word;
}
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/**
* escape text ($str) for XML transport
* @param string $str
* @return string Escaped text.
*/
function xmlify($str) {
/// @TODO deprecated code found?
/* $buffer = '';
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$len = mb_strlen($str);
for ($x = 0; $x < $len; $x ++) {
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$char = mb_substr($str,$x,1);
switch($char) {
case "\r" :
break;
case "&" :
$buffer .= '&amp;';
break;
case "'" :
$buffer .= '&apos;';
break;
case "\"" :
$buffer .= '&quot;';
break;
case '<' :
$buffer .= '&lt;';
break;
case '>' :
$buffer .= '&gt;';
break;
case "\n" :
$buffer .= "\n";
break;
default :
$buffer .= $char;
break;
}
}*/
/*
$buffer = mb_ereg_replace("&", "&amp;", $str);
$buffer = mb_ereg_replace("'", "&apos;", $buffer);
$buffer = mb_ereg_replace('"', "&quot;", $buffer);
$buffer = mb_ereg_replace("<", "&lt;", $buffer);
$buffer = mb_ereg_replace(">", "&gt;", $buffer);
*/
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$buffer = htmlspecialchars($str, ENT_QUOTES, "UTF-8");
$buffer = trim($buffer);
return $buffer;
}
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/**
* undo an xmlify
* @param string $s xml escaped text
* @return string unescaped text
*/
function unxmlify($s) {
/// @TODO deprecated code found?
// $ret = str_replace('&amp;','&', $s);
// $ret = str_replace(array('&lt;','&gt;','&quot;','&apos;'),array('<','>','"',"'"),$ret);
/*$ret = mb_ereg_replace('&amp;', '&', $s);
$ret = mb_ereg_replace('&apos;', "'", $ret);
$ret = mb_ereg_replace('&quot;', '"', $ret);
$ret = mb_ereg_replace('&lt;', "<", $ret);
$ret = mb_ereg_replace('&gt;', ">", $ret);
*/
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$ret = htmlspecialchars_decode($s, ENT_QUOTES);
return $ret;
}
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/**
* Loader for infinite scrolling
* @return string html for loader
*/
function scroll_loader() {
$tpl = get_markup_template("scroll_loader.tpl");
return replace_macros($tpl, [
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'wait' => L10n::t('Loading more entries...'),
'end' => L10n::t('The end')
]);
}
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/**
* Turn user/group ACLs stored as angle bracketed text into arrays
*
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* @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);
$ret = [];
if (strlen($s)) {
$t = str_replace('<', '', $s);
$a = explode('>', $t);
foreach ($a as $aa) {
if (intval($aa)) {
$ret[] = intval($aa);
}
}
}
return $ret;
}
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/**
* Wrap ACL elements in angle brackets for storage
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* @param string $item
*/
function sanitise_acl(&$item) {
if (intval($item)) {
$item = '<' . intval(notags(trim($item))) . '>';
} else {
unset($item);
}
}
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/**
* Convert an ACL array to a storable string
*
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* Normally ACL permissions will be an array.
* We'll also allow a comma-separated string.
*
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* @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;
}
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/**
* load template $s
*
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* @param string $s
* @param string $root
* @return string
*/
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function get_markup_template($s, $root = '') {
$stamp1 = microtime(true);
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$a = get_app();
$t = $a->getTemplateEngine();
try {
$template = $t->getTemplateFile($s, $root);
} catch (Exception $e) {
echo "<pre><b>" . __FUNCTION__ . "</b>: " . $e->getMessage() . "</pre>";
killme();
}
$a->saveTimestamp($stamp1, "file");
return $template;
}
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/**
* 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
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* are looking for as $s - returns true if found, otherwise false
*
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* @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));
}
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/**
* Compare activity uri. Knows about activity namespace.
*
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* @param string $haystack
* @param string $needle
* @return boolean
*/
function activity_match($haystack,$needle) {
return (($haystack === $needle) || ((basename($needle) === $haystack) && strstr($needle, NAMESPACE_ACTIVITY_SCHEMA)));
}
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/**
* @brief Pull out all #hashtags and @person tags from $string.
*
* We also get @person@domain.com - which would make
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* 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 $string Post content
* @return array List of tag and person names
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*/
function get_tags($string) {
$ret = [];
// 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(['[', ']'], ["\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;
}
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// try not to catch url fragments
if (strpos($string, $match) && preg_match('/[a-zA-z0-9\/]/', substr($string, strpos($string, $match) - 1, 1))) {
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continue;
}
$ret[] = $match;
}
}
return $ret;
}
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/**
* quick and dirty quoted_printable encoding
*
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* @param string $s
* @return string
*/
function qp($s) {
return str_replace("%", "=", rawurlencode($s));
}
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/**
* Get html for contact block.
*
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* @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']),
DBA::escape(Protocol::DFRN),
DBA::escape(Protocol::OSTATUS),
DBA::escape(Protocol::DIASPORA)
);
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if (DBA::isResult($r)) {
$total = intval($r[0]['total']);
}
if (!$total) {
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$contacts = L10n::t('No contacts');
$micropro = null;
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} else {
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// Splitting the query in two parts makes it much faster
$r = q("SELECT `id` FROM `contact`
WHERE `uid` = %d AND NOT `self` AND NOT `blocked`
AND NOT `pending` AND NOT `hidden` AND NOT `archive`
AND `network` IN ('%s', '%s', '%s')
ORDER BY RAND() LIMIT %d",
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intval($a->profile['uid']),
DBA::escape(Protocol::DFRN),
DBA::escape(Protocol::OSTATUS),
DBA::escape(Protocol::DIASPORA),
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intval($shown)
);
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if (DBA::isResult($r)) {
$contacts = [];
foreach ($r AS $contact) {
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$contacts[] = $contact["id"];
}
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$r = q("SELECT `id`, `uid`, `addr`, `url`, `name`, `thumb`, `network` FROM `contact` WHERE `id` IN (%s)",
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DBA::escape(implode(",", $contacts)));
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if (DBA::isResult($r)) {
$contacts = L10n::tt('%d Contact', '%d Contacts', $total);
$micropro = [];
foreach ($r as $rr) {
$micropro[] = micropro($rr, true, 'mpfriend');
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}
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}
}
}
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$tpl = get_markup_template('contact_block.tpl');
$o = replace_macros($tpl, [
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'$contacts' => $contacts,
'$nickname' => $a->profile['nickname'],
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'$viewcontacts' => L10n::t('View Contacts'),
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'$micropro' => $micropro,
]);
$arr = ['contacts' => $r, 'output' => $o];
Addon::callHooks('contact_block_end', $arr);
return $o;
}
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/**
* @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 $textmode If true display the contacts as text links
* if false display the contacts as picture links
* @return string Formatted html
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*/
function micropro($contact, $redirect = false, $class = '', $textmode = false) {
// Use the contact URL if no address is available
if (!x($contact, "addr")) {
$contact["addr"] = $contact["url"];
}
$url = $contact['url'];
$sparkle = '';
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$redir = false;
if ($redirect) {
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$url = Contact::magicLink($contact['url']);
if (strpos($url, 'redir/') === 0) {
$sparkle = ' sparkle';
}
}
// If there is some js available we don't need the url
if (x($contact, 'click')) {
$url = '';
}
return replace_macros(get_markup_template(($textmode)?'micropro_txt.tpl':'micropro_img.tpl'),[
'$click' => defaults($contact, 'click', ''),
'$class' => $class,
'$url' => $url,
'$photo' => ProxyUtils::proxifyUrl($contact['thumb'], false, ProxyUtils::SIZE_THUMB),
'$name' => $contact['name'],
'title' => $contact['name'] . ' [' . $contact['addr'] . ']',
'$parkle' => $sparkle,
'$redir' => $redir,
]);
}
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/**
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* Search box.
*
* @param string $s Search query.
* @param string $id HTML id
* @param string $url Search url.
* @param bool $save Show save search button.
* @param bool $aside Display the search widgit aside.
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*
* @return string Formatted HTML.
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*/
function search($s, $id = 'search-box', $url = 'search', $save = false, $aside = true)
{
$mode = 'text';
if (strpos($s, '#') === 0) {
$mode = 'tag';
}
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$save_label = $mode === 'text' ? L10n::t('Save') : L10n::t('Follow');
$values = [
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'$s' => htmlspecialchars($s),
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'$id' => $id,
'$action_url' => $url,
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'$search_label' => L10n::t('Search'),
'$save_label' => $save_label,
'$savedsearch' => local_user() && Feature::isEnabled(local_user(),'savedsearch'),
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'$search_hint' => L10n::t('@name, !forum, #tags, content'),
'$mode' => $mode
];
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if (!$aside) {
$values['$searchoption'] = [
L10n::t("Full Text"),
L10n::t("Tags"),
L10n::t("Contacts")];
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if (Config::get('system','poco_local_search')) {
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$values['$searchoption'][] = L10n::t("Forums");
}
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}
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return replace_macros(get_markup_template('searchbox.tpl'), $values);
}
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/**
* @brief Check for a valid email string
*
* @param string $email_address
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* @return boolean
*/
function valid_email($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
*
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* @param string $s
*/
function linkify($s) {
$s = preg_replace("/(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\'\%\$\!\+]*)/", ' <a href="$1" target="_blank">$1</a>', $s);
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$s = preg_replace("/\<(.*?)(src|href)=(.*?)\&amp\;(.*?)\>/ism",'<$1$2=$3&$4>',$s);
return $s;
}
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/**
* Load poke verbs
*
* @return array index is present tense verb
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* value is array containing past tense verb, translation of present, translation of past
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* @hook poke_verbs pokes array
*/
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function get_poke_verbs() {
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// index is present tense verb
// value is array containing past tense verb, translation of present, translation of past
$arr = [
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'poke' => ['poked', L10n::t('poke'), L10n::t('poked')],
'ping' => ['pinged', L10n::t('ping'), L10n::t('pinged')],
'prod' => ['prodded', L10n::t('prod'), L10n::t('prodded')],
'slap' => ['slapped', L10n::t('slap'), L10n::t('slapped')],
'finger' => ['fingered', L10n::t('finger'), L10n::t('fingered')],
'rebuff' => ['rebuffed', L10n::t('rebuff'), L10n::t('rebuffed')],
];
Addon::callHooks('poke_verbs', $arr);
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return $arr;
}
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/**
* @brief Translate days and months names.
*
* @param string $s String with day or month name.
* @return string Translated string.
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*/
function day_translate($s) {
$ret = str_replace(['Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday'],
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[L10n::t('Monday'), L10n::t('Tuesday'), L10n::t('Wednesday'), L10n::t('Thursday'), L10n::t('Friday'), L10n::t('Saturday'), L10n::t('Sunday')],
$s);
$ret = str_replace(['January','February','March','April','May','June','July','August','September','October','November','December'],
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[L10n::t('January'), L10n::t('February'), L10n::t('March'), L10n::t('April'), L10n::t('May'), L10n::t('June'), L10n::t('July'), L10n::t('August'), L10n::t('September'), L10n::t('October'), L10n::t('November'), L10n::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(['Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', 'Sun'],
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[L10n::t('Mon'), L10n::t('Tue'), L10n::t('Wed'), L10n::t('Thu'), L10n::t('Fri'), L10n::t('Sat'), L10n::t('Sun')],
$s);
$ret = str_replace(['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov','Dec'],
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[L10n::t('Jan'), L10n::t('Feb'), L10n::t('Mar'), L10n::t('Apr'), L10n::t('May'), ('Jun'), L10n::t('Jul'), L10n::t('Aug'), L10n::t('Sep'), L10n::t('Oct'), L10n::t('Nov'), L10n::t('Dec')],
$ret);
return $ret;
}
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/**
* Normalize url
*
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* @param string $url
* @return string
*/
function normalise_link($url) {
$ret = str_replace(['https:', '//www.'], ['http:', '//'], $url);
return rtrim($ret,'/');
}
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/**
* 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.
*
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* @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);
}
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/**
* @brief Find any non-embedded images in private items and add redir links to them
*
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* @param App $a
* @param array &$item The field array of an item row
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*/
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 $mtch) {
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if (strpos($mtch[1], '/redir') !== false) {
continue;
}
if ((local_user() == $item['uid']) && ($item['private'] == 1) && ($item['contact-id'] != $a->contact['id']) && ($item['network'] == Protocol::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']);
}
}
}
}
/**
* Sets the "rendered-html" field of the provided item
*
* Body is preserved to avoid side-effects as we modify it just-in-time for spoilers and private image links
*
* @param array $item
* @param bool $update
*
* @todo Remove reference, simply return "rendered-html" and "rendered-hash"
*/
function put_item_in_cache(&$item, $update = false)
{
$body = $item["body"];
$rendered_hash = defaults($item, 'rendered-hash', '');
$rendered_html = defaults($item, 'rendered-html', '');
if ($rendered_hash == ''
|| $rendered_html == ""
|| $rendered_hash != hash("md5", $item["body"])
|| Config::get("system", "ignore_cache")
) {
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$a = get_app();
redir_private_images($a, $item);
$item["rendered-html"] = prepare_text($item["body"]);
$item["rendered-hash"] = hash("md5", $item["body"]);
$hook_data = ['item' => $item, 'rendered-html' => $item['rendered-html'], 'rendered-hash' => $item['rendered-hash']];
Addon::callHooks('put_item_in_cache', $hook_data);
$item['rendered-html'] = $hook_data['rendered-html'];
$item['rendered-hash'] = $hook_data['rendered-hash'];
unset($hook_data);
// Force an update if the generated values differ from the existing ones
if ($rendered_hash != $item["rendered-hash"]) {
$update = true;
}
// Only compare the HTML when we forcefully ignore the cache
if (Config::get("system", "ignore_cache") && ($rendered_html != $item["rendered-html"])) {
$update = true;
}
if ($update && !empty($item["id"])) {
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Item::update(['rendered-html' => $item["rendered-html"], 'rendered-hash' => $item["rendered-hash"]],
['id' => $item["id"]]);
}
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}
$item["body"] = $body;
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}
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/**
* @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
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* @param boolean $attach
* @param boolean $is_preview
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* @return string item body html
* @hook prepare_body_init item array before any work
* @hook prepare_body_content_filter ('item'=>item array, 'filter_reasons'=>string array) before first bbcode to html
* @hook prepare_body ('item'=>item array, 'html'=>body string, 'is_preview'=>boolean, 'filter_reasons'=>string array) after first bbcode to html
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* @hook prepare_body_final ('item'=>item array, 'html'=>body string) after attach icons and blockquote special case handling (spoiler, author)
*/
function prepare_body(array &$item, $attach = false, $is_preview = false)
{
$a = get_app();
Addon::callHooks('prepare_body_init', $item);
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// In order to provide theme developers more possibilities, event items
// are treated differently.
if ($item['object-type'] === ACTIVITY_OBJ_EVENT && isset($item['event-id'])) {
$ev = Event::getItemHTML($item);
return $ev;
}
$tags = \Friendica\Model\Term::populateTagsFromItem($item);
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$item['tags'] = $tags['tags'];
$item['hashtags'] = $tags['hashtags'];
$item['mentions'] = $tags['mentions'];
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// Compile eventual content filter reasons
$filter_reasons = [];
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if (!$is_preview && public_contact() != $item['author-id']) {
if (!empty($item['content-warning']) && (!local_user() || !PConfig::get(local_user(), 'system', 'disable_cw', false))) {
$filter_reasons[] = L10n::t('Content warning: %s', $item['content-warning']);
}
$hook_data = [
'item' => $item,
'filter_reasons' => $filter_reasons
];
Addon::callHooks('prepare_body_content_filter', $hook_data);
$filter_reasons = $hook_data['filter_reasons'];
unset($hook_data);
}
// Update the cached values if there is no "zrl=..." on the links.
$update = (!local_user() && !remote_user() && ($item["uid"] == 0));
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// Or update it if the current viewer is the intented viewer.
if (($item["uid"] == local_user()) && ($item["uid"] != 0)) {
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$update = true;
}
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put_item_in_cache($item, $update);
$s = $item["rendered-html"];
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$hook_data = [
'item' => $item,
'html' => $s,
'preview' => $is_preview,
'filter_reasons' => $filter_reasons
];
Addon::callHooks('prepare_body', $hook_data);
$s = $hook_data['html'];
unset($hook_data);
if (!$attach) {
// Replace the blockquotes with quotes that are used in mails.
$mailquote = '<blockquote type="cite" class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">';
$s = str_replace(['<blockquote>', '<blockquote class="spoiler">', '<blockquote class="author">'], [$mailquote, $mailquote, $mailquote], $s);
return $s;
}
$as = '';
$vhead = false;
$matches = [];
preg_match_all('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\"(?: title=\"(.*?)\")?|', $item['attach'], $matches, PREG_SET_ORDER);
foreach ($matches as $mtch) {
$mime = $mtch[3];
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$the_url = Contact::magicLinkById($item['author-id'], $mtch[1]);
if (strpos($mime, 'video') !== false) {
if (!$vhead) {
$vhead = true;
$a->page['htmlhead'] .= replace_macros(get_markup_template('videos_head.tpl'), [
'$baseurl' => System::baseUrl(),
]);
}
$url_parts = explode('/', $the_url);
$id = end($url_parts);
$as .= replace_macros(get_markup_template('video_top.tpl'), [
'$video' => [
'id' => $id,
'title' => L10n::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';
}
$title = escape_tags(trim(!empty($mtch[4]) ? $mtch[4] : $mtch[1]));
$title .= ' ' . $mtch[2] . ' ' . L10n::t('bytes');
$icon = '<div class="attachtype icon s22 type-' . $filetype . ' subtype-' . $filesubtype . '"></div>';
$as .= '<a href="' . strip_tags($the_url) . '" title="' . $title . '" class="attachlink" target="_blank" >' . $icon . '</a>';
}
if ($as != '') {
$s .= '<div class="body-attach">'.$as.'<div class="clear"></div></div>';
}
// Map.
if (strpos($s, '<div class="map">') !== false && x($item, 'coord')) {
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$x = Map::byCoordinates(trim($item['coord']));
if ($x) {
$s = preg_replace('/\<div class\=\"map\"\>/', '$0' . $x, $s);
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}
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}
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// Look for spoiler.
$spoilersearch = '<blockquote class="spoiler">';
// Remove line breaks before the spoiler.
while ((strpos($s, "\n" . $spoilersearch) !== false)) {
$s = str_replace("\n" . $spoilersearch, $spoilersearch, $s);
}
while ((strpos($s, "<br />" . $spoilersearch) !== false)) {
$s = str_replace("<br />" . $spoilersearch, $spoilersearch, $s);
}
while ((strpos($s, $spoilersearch) !== false)) {
$pos = strpos($s, $spoilersearch);
$rnd = random_string(8);
$spoilerreplace = '<br /> <span id="spoiler-wrap-' . $rnd . '" class="spoiler-wrap fakelink" onclick="openClose(\'spoiler-' . $rnd . '\');">' . L10n::t('Click to open/close') . '</span>'.
'<blockquote class="spoiler" id="spoiler-' . $rnd . '" style="display: none;">';
$s = substr($s, 0, $pos) . $spoilerreplace . substr($s, $pos + strlen($spoilersearch));
}
// Look for quote with author.
$authorsearch = '<blockquote class="author">';
while ((strpos($s, $authorsearch) !== false)) {
$pos = strpos($s, $authorsearch);
$rnd = random_string(8);
$authorreplace = '<br /> <span id="author-wrap-' . $rnd . '" class="author-wrap fakelink" onclick="openClose(\'author-' . $rnd . '\');">' . L10n::t('Click to open/close') . '</span>'.
'<blockquote class="author" id="author-' . $rnd . '" style="display: block;">';
$s = substr($s, 0, $pos) . $authorreplace . substr($s, $pos + strlen($authorsearch));
}
// Replace friendica image url size with theme preference.
if (x($a->theme_info, 'item_image_size')){
$ps = $a->theme_info['item_image_size'];
$s = preg_replace('|(<img[^>]+src="[^"]+/photo/[0-9a-f]+)-[0-9]|', "$1-" . $ps, $s);
}
$s = apply_content_filter($s, $filter_reasons);
$hook_data = ['item' => $item, 'html' => $s];
Addon::callHooks('prepare_body_final', $hook_data);
return $hook_data['html'];
}
/**
* Given a HTML text and a set of filtering reasons, adds a content hiding header with the provided reasons
*
* Reasons are expected to have been translated already.
*
* @param string $html
* @param array $reasons
* @return string
*/
function apply_content_filter($html, array $reasons)
{
if (count($reasons)) {
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$tpl = get_markup_template('wall/content_filter.tpl');
$html = replace_macros($tpl, [
'$reasons' => $reasons,
'$rnd' => random_string(8),
'$openclose' => L10n::t('Click to open/close'),
'$html' => $html
]);
}
return $html;
}
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/**
* @brief Given a text string, convert from bbcode to html and add smilie icons.
*
* @param string $text String with bbcode.
* @return string Formattet HTML.
2013-03-27 10:11:40 +01:00
*/
function prepare_text($text) {
if (stristr($text, '[nosmile]')) {
$s = BBCode::convert($text);
} else {
$s = Smilies::replace(BBCode::convert($text));
}
return trim($s);
}
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/**
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* return array with details for categories and folders for an item
*
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* @param array $item
* @return array
*
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* [
* [ // categories array
* {
* 'name': 'category name',
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* 'removeurl': 'url to remove this category',
* 'first': 'is the first in this array? true/false',
* 'last': 'is the last in this array? true/false',
* } ,
* ....
* ],
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* [ //folders array
* {
* 'name': 'folder name',
* 'removeurl': 'url to remove this folder',
* 'first': 'is the first in this array? true/false',
* 'last': 'is the last in this array? true/false',
* } ,
* ....
* ]
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* ]
*/
function get_cats_and_terms($item)
{
$categories = [];
$folders = [];
$matches = false;
$first = true;
$cnt = preg_match_all('/<(.*?)>/', $item['file'], $matches, PREG_SET_ORDER);
if ($cnt) {
foreach ($matches as $mtch) {
$categories[] = [
'name' => xmlify(file_tag_decode($mtch[1])),
'url' => "#",
'removeurl' => ((local_user() == $item['uid'])?'filerm/' . $item['id'] . '?f=&cat=' . xmlify(file_tag_decode($mtch[1])):""),
'first' => $first,
'last' => false
];
$first = false;
}
}
if (count($categories)) {
$categories[count($categories) - 1]['last'] = true;
}
if (local_user() == $item['uid']) {
$matches = false;
$first = true;
$cnt = preg_match_all('/\[(.*?)\]/', $item['file'], $matches, PREG_SET_ORDER);
if ($cnt) {
foreach ($matches as $mtch) {
$folders[] = [
'name' => xmlify(file_tag_decode($mtch[1])),
'url' => "#",
'removeurl' => ((local_user() == $item['uid']) ? 'filerm/' . $item['id'] . '?f=&term=' . xmlify(file_tag_decode($mtch[1])) : ""),
'first' => $first,
'last' => false
];
$first = false;
}
}
}
if (count($folders)) {
$folders[count($folders) - 1]['last'] = true;
}
return [$categories, $folders];
}
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/**
* get private link for item
* @param array $item
* @return boolean|array False if item has not plink, otherwise array('href'=>plink url, 'title'=>translated title)
*/
function get_plink($item) {
$a = get_app();
if ($a->user['nickname'] != "") {
$ret = [
//'href' => "display/" . $a->user['nickname'] . "/" . $item['id'],
'href' => "display/" . $item['guid'],
'orig' => "display/" . $item['guid'],
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'title' => L10n::t('View on separate page'),
'orig_title' => L10n::t('view on separate page'),
];
if (x($item, 'plink')) {
$ret["href"] = $a->removeBaseURL($item['plink']);
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$ret["title"] = L10n::t('link to source');
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}
} elseif (x($item, 'plink') && ($item['private'] != 1)) {
$ret = [
'href' => $item['plink'],
'orig' => $item['plink'],
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'title' => L10n::t('link to source'),
];
} else {
$ret = [];
}
return $ret;
}
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/**
* replace html amp entity with amp char
* @param string $s
* @return string
*/
function unamp($s) {
return str_replace('&amp;', '&', $s);
}
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/**
* return number of bytes in size (K, M, G)
* @param string $size_str
* @return number
*/
function return_bytes($size_str) {
switch (substr ($size_str, -1)) {
case 'M': case 'm': return (int)$size_str * 1048576;
case 'K': case 'k': return (int)$size_str * 1024;
case 'G': case 'g': return (int)$size_str * 1073741824;
default: return $size_str;
}
}
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/**
* @param string $s
* @param boolean $strip_padding
* @return string
*/
function base64url_encode($s, $strip_padding = false) {
$s = strtr(base64_encode($s), '+/', '-_');
if ($strip_padding) {
$s = str_replace('=','',$s);
}
return $s;
}
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/**
* @param string $s
* @return string
*/
function base64url_decode($s) {
if (is_array($s)) {
Logger::log('base64url_decode: illegal input: ' . print_r(debug_backtrace(), true));
return $s;
}
/*
* // Placeholder for new rev of salmon which strips base64 padding.
* // PHP base64_decode handles the un-padded input without requiring this step
* // Uncomment if you find you need it.
*
* $l = strlen($s);
* if (!strpos($s,'=')) {
* $m = $l % 4;
* if ($m == 2)
* $s .= '==';
* if ($m == 3)
* $s .= '=';
* }
*
*/
return base64_decode(strtr($s,'-_','+/'));
}
2011-08-17 05:05:02 +02:00
2013-03-27 10:28:56 +01:00
/**
* return div element with class 'clear'
* @return string
* @deprecated
*/
function cleardiv() {
return '<div class="clear"></div>';
}
function bb_translate_video($s) {
$matches = null;
$r = preg_match_all("/\[video\](.*?)\[\/video\]/ism",$s,$matches,PREG_SET_ORDER);
if ($r) {
foreach ($matches as $mtch) {
if ((stristr($mtch[1], 'youtube')) || (stristr($mtch[1], 'youtu.be'))) {
$s = str_replace($mtch[0], '[youtube]' . $mtch[1] . '[/youtube]', $s);
} elseif (stristr($mtch[1], 'vimeo')) {
$s = str_replace($mtch[0], '[vimeo]' . $mtch[1] . '[/vimeo]', $s);
}
}
}
return $s;
}
function html2bb_video($s) {
$s = preg_replace('#<object[^>]+>(.*?)https?://www.youtube.com/((?:v|cp)/[A-Za-z0-9\-_=]+)(.*?)</object>#ism',
'[youtube]$2[/youtube]', $s);
$s = preg_replace('#<iframe[^>](.*?)https?://www.youtube.com/embed/([A-Za-z0-9\-_=]+)(.*?)</iframe>#ism',
'[youtube]$2[/youtube]', $s);
$s = preg_replace('#<iframe[^>](.*?)https?://player.vimeo.com/video/([0-9]+)(.*?)</iframe>#ism',
'[vimeo]$2[/vimeo]', $s);
return $s;
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}
/**
* apply xmlify() to all values of array $val, recursively
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* @param array $val
* @return array
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*/
function array_xmlify($val){
if (is_bool($val)) {
return $val?"true":"false";
} elseif (is_array($val)) {
return array_map('array_xmlify', $val);
}
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return xmlify((string) $val);
}
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/**
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* transform link href and img src from relative to absolute
*
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* @param string $text
* @param string $base base url
* @return string
*/
function reltoabs($text, $base) {
if (empty($base)) {
return $text;
}
$base = rtrim($base,'/');
$base2 = $base . "/";
// Replace links
$pattern = "/<a([^>]*) href=\"(?!http|https|\/)([^\"]*)\"/";
$replace = "<a\${1} href=\"" . $base2 . "\${2}\"";
$text = preg_replace($pattern, $replace, $text);
$pattern = "/<a([^>]*) href=\"(?!http|https)([^\"]*)\"/";
$replace = "<a\${1} href=\"" . $base . "\${2}\"";
$text = preg_replace($pattern, $replace, $text);
// Replace images
$pattern = "/<img([^>]*) src=\"(?!http|https|\/)([^\"]*)\"/";
$replace = "<img\${1} src=\"" . $base2 . "\${2}\"";
$text = preg_replace($pattern, $replace, $text);
$pattern = "/<img([^>]*) src=\"(?!http|https)([^\"]*)\"/";
$replace = "<img\${1} src=\"" . $base . "\${2}\"";
$text = preg_replace($pattern, $replace, $text);
// Done
return $text;
}
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/**
* get translated item type
*
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* @param array $itme
* @return string
*/
function item_post_type($item) {
if (!empty($item['event-id'])) {
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return L10n::t('event');
} elseif (!empty($item['resource-id'])) {
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return L10n::t('photo');
} elseif (!empty($item['verb']) && $item['verb'] !== ACTIVITY_POST) {
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return L10n::t('activity');
} elseif ($item['id'] != $item['parent']) {
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return L10n::t('comment');
}
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return L10n::t('post');
}
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// post categories and "save to file" use the same item.file table for storage.
// We will differentiate the different uses by wrapping categories in angle brackets
// and save to file categories in square brackets.
// To do this we need to escape these characters if they appear in our tag.
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function file_tag_encode($s) {
return str_replace(['<','>','[',']'],['%3c','%3e','%5b','%5d'],$s);
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}
function file_tag_decode($s) {
return str_replace(['%3c', '%3e', '%5b', '%5d'], ['<', '>', '[', ']'], $s);
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}
function file_tag_file_query($table,$s,$type = 'file') {
if ($type == 'file') {
$str = preg_quote('[' . str_replace('%', '%%', file_tag_encode($s)) . ']');
} else {
$str = preg_quote('<' . str_replace('%', '%%', file_tag_encode($s)) . '>');
}
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return " AND " . (($table) ? DBA::escape($table) . '.' : '') . "file regexp '" . DBA::escape($str) . "' ";
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}
// ex. given music,video return <music><video> or [music][video]
function file_tag_list_to_file($list, $type = 'file') {
$tag_list = '';
if (strlen($list)) {
$list_array = explode(",",$list);
if ($type == 'file') {
$lbracket = '[';
$rbracket = ']';
} else {
$lbracket = '<';
$rbracket = '>';
}
foreach ($list_array as $item) {
if (strlen($item)) {
$tag_list .= $lbracket . file_tag_encode(trim($item)) . $rbracket;
}
}
}
return $tag_list;
}
// ex. given <music><video>[friends], return music,video or friends
function file_tag_file_to_list($file, $type = 'file') {
$matches = false;
$list = '';
if ($type == 'file') {
$cnt = preg_match_all('/\[(.*?)\]/', $file, $matches, PREG_SET_ORDER);
} else {
$cnt = preg_match_all('/<(.*?)>/', $file, $matches, PREG_SET_ORDER);
}
if ($cnt) {
foreach ($matches as $mtch) {
if (strlen($list)) {
$list .= ',';
}
$list .= file_tag_decode($mtch[1]);
}
}
return $list;
}
function file_tag_update_pconfig($uid, $file_old, $file_new, $type = 'file') {
// $file_old - categories previously associated with an item
// $file_new - new list of categories for an item
if (!intval($uid)) {
return false;
} elseif ($file_old == $file_new) {
return true;
}
$saved = PConfig::get($uid, 'system', 'filetags');
if (strlen($saved)) {
if ($type == 'file') {
$lbracket = '[';
$rbracket = ']';
$termtype = TERM_FILE;
} else {
$lbracket = '<';
$rbracket = '>';
$termtype = TERM_CATEGORY;
}
$filetags_updated = $saved;
// check for new tags to be added as filetags in pconfig
$new_tags = [];
$check_new_tags = explode(",",file_tag_file_to_list($file_new,$type));
foreach ($check_new_tags as $tag) {
if (!stristr($saved,$lbracket . file_tag_encode($tag) . $rbracket)) {
$new_tags[] = $tag;
}
}
$filetags_updated .= file_tag_list_to_file(implode(",",$new_tags),$type);
// check for deleted tags to be removed from filetags in pconfig
$deleted_tags = [];
$check_deleted_tags = explode(",",file_tag_file_to_list($file_old,$type));
foreach ($check_deleted_tags as $tag) {
if (!stristr($file_new,$lbracket . file_tag_encode($tag) . $rbracket)) {
$deleted_tags[] = $tag;
}
}
foreach ($deleted_tags as $key => $tag) {
$r = q("SELECT `oid` FROM `term` WHERE `term` = '%s' AND `otype` = %d AND `type` = %d AND `uid` = %d",
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DBA::escape($tag),
intval(TERM_OBJ_POST),
intval($termtype),
intval($uid));
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if (DBA::isResult($r)) {
unset($deleted_tags[$key]);
} else {
$filetags_updated = str_replace($lbracket . file_tag_encode($tag) . $rbracket,'',$filetags_updated);
}
}
if ($saved != $filetags_updated) {
PConfig::set($uid, 'system', 'filetags', $filetags_updated);
}
return true;
} elseif (strlen($file_new)) {
PConfig::set($uid, 'system', 'filetags', $file_new);
}
return true;
}
function file_tag_save_file($uid, $item_id, $file)
{
if (!intval($uid)) {
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return false;
}
$item = Item::selectFirst(['file'], ['id' => $item_id, 'uid' => $uid]);
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if (DBA::isResult($item)) {
if (!stristr($item['file'],'[' . file_tag_encode($file) . ']')) {
$fields = ['file' => $item['file'] . '[' . file_tag_encode($file) . ']'];
Item::update($fields, ['id' => $item_id]);
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}
$saved = PConfig::get($uid, 'system', 'filetags');
if (!strlen($saved) || !stristr($saved, '[' . file_tag_encode($file) . ']')) {
PConfig::set($uid, 'system', 'filetags', $saved . '[' . file_tag_encode($file) . ']');
}
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info(L10n::t('Item filed'));
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}
return true;
}
function file_tag_unsave_file($uid, $item_id, $file, $cat = false)
{
if (!intval($uid)) {
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return false;
}
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if ($cat == true) {
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$pattern = '<' . file_tag_encode($file) . '>' ;
$termtype = TERM_CATEGORY;
} else {
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$pattern = '[' . file_tag_encode($file) . ']' ;
$termtype = TERM_FILE;
}
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$item = Item::selectFirst(['file'], ['id' => $item_id, 'uid' => $uid]);
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if (!DBA::isResult($item)) {
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return false;
}
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$fields = ['file' => str_replace($pattern,'',$item['file'])];
Item::update($fields, ['id' => $item_id]);
$r = q("SELECT `oid` FROM `term` WHERE `term` = '%s' AND `otype` = %d AND `type` = %d AND `uid` = %d",
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DBA::escape($file),
intval(TERM_OBJ_POST),
intval($termtype),
intval($uid)
);
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if (!DBA::isResult($r)) {
$saved = PConfig::get($uid, 'system', 'filetags');
PConfig::set($uid, 'system', 'filetags', str_replace($pattern, '', $saved));
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}
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return true;
}
function normalise_openid($s) {
return trim(str_replace(['http://', 'https://'], ['', ''], $s), '/');
}
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function undo_post_tagging($s) {
$matches = null;
$cnt = preg_match_all('/([!#@])\[url=(.*?)\](.*?)\[\/url\]/ism', $s, $matches, PREG_SET_ORDER);
if ($cnt) {
foreach ($matches as $mtch) {
if (in_array($mtch[1], ['!', '@'])) {
$contact = Contact::getDetailsByURL($mtch[2]);
$mtch[3] = empty($contact['addr']) ? $mtch[2] : $contact['addr'];
}
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$s = str_replace($mtch[0], $mtch[1] . $mtch[3],$s);
}
}
return $s;
}
function protect_sprintf($s) {
return str_replace('%', '%%', $s);
}
/// @TODO Rewrite this
function is_a_date_arg($s) {
$i = intval($s);
if ($i > 1900) {
$y = date('Y');
if ($i <= $y + 1 && strpos($s, '-') == 4) {
$m = intval(substr($s, 5));
if ($m > 0 && $m <= 12) {
return true;
}
}
}
return false;
}
/**
* remove intentation from a text
*/
function deindent($text, $chr = "[\t ]", $count = NULL) {
$lines = explode("\n", $text);
if (is_null($count)) {
$m = [];
$k = 0;
while ($k < count($lines) && strlen($lines[$k]) == 0) {
$k++;
}
preg_match("|^" . $chr . "*|", $lines[$k], $m);
$count = strlen($m[0]);
}
for ($k = 0; $k < count($lines); $k++) {
$lines[$k] = preg_replace("|^" . $chr . "{" . $count . "}|", "", $lines[$k]);
}
return implode("\n", $lines);
}
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function formatBytes($bytes, $precision = 2) {
$units = ['B', 'KB', 'MB', 'GB', 'TB'];
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$bytes = max($bytes, 0);
$pow = floor(($bytes ? log($bytes) : 0) / log(1024));
$pow = min($pow, count($units) - 1);
$bytes /= pow(1024, $pow);
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return round($bytes, $precision) . ' ' . $units[$pow];
}
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/**
* @brief translate and format the networkname of a contact
*
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* @param string $network
* Networkname of the contact (e.g. dfrn, rss and so on)
* @param sting $url
* The contact url
* @return string
*/
function format_network_name($network, $url = 0) {
if ($network != "") {
if ($url != "") {
$network_name = '<a href="'.$url.'">'.ContactSelector::networkToName($network, $url)."</a>";
} else {
$network_name = ContactSelector::networkToName($network);
}
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return $network_name;
}
}