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;
use Friendica\Core\Renderer;
use Friendica\Model\FileTag;
use Friendica\Util\XML;
require_once "include/conversation.php";
/**
* @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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/**
* 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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/**
* 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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/**
* @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);
}
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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;
$a->page['htmlhead'] .= Renderer::replaceMacros(Renderer::getMarkupTemplate('videos_head.tpl'), [
'$baseurl' => System::baseUrl(),
]);
}
$url_parts = explode('/', $the_url);
$id = end($url_parts);
$as .= Renderer::replaceMacros(Renderer::getMarkupTemplate('video_top.tpl'), [
'$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);
}
$s = HTML::applyContentFilter($s, $filter_reasons);
$hook_data = ['item' => $item, 'html' => $s];
Addon::callHooks('prepare_body_final', $hook_data);
return $hook_data['html'];
}
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/**
* @brief Given a text string, convert from bbcode to html and add smilie icons.
*
* @param string $text String with bbcode.
* @return string Formattet HTML.
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*/
function prepare_text($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) {
$categories[] = [
'name' => XML::escape(FileTag::decode($mtch[1])),
'url' => "#",
'removeurl' => ((local_user() == $item['uid'])?'filerm/' . $item['id'] . '?f=&cat=' . XML::escape(FileTag::decode($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) {
$folders[] = [
'name' => XML::escape(FileTag::decode($mtch[1])),
'url' => "#",
'removeurl' => ((local_user() == $item['uid']) ? 'filerm/' . $item['id'] . '?f=&term=' . XML::escape(FileTag::decode($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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/**
* 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,'-_','+/'));
}
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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;
}
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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'] != $item['parent']) {
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return L10n::t('comment');
}
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return L10n::t('post');
}
function normalise_openid($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;
}
}