replace)
*
* @return string substituted string
*/
function replace_macros($s, $r) {
$arr = [
'template' => $s,
'params' => $r
];
/**
* @hooks replace_macros
* * \e string \b template
* * \e array \b params
*/
call_hooks('replace_macros', $arr);
$t = App::template_engine();
try {
$output = $t->replace_macros($arr['template'], $arr['params']);
} catch (Exception $e) {
logger('Unable to render template: ' . $e->getMessage());
$output = '
';
for ($x = 0; $x < count($params['texts']); $x ++) {
$s .= '
' . $params['texts'][$x] . ' ' . $params['icons'][$x] . ' ';
}
} else {
$params['string'] = preg_replace_callback('/<(3+)/','preg_heart',$params['string']);
$s = str_replace($params['texts'],$params['icons'],$params['string']);
}
$s = preg_replace_callback('//ism', 'smile_unshield', $s);
return $s;
}
/**
* @brief
*
* @param array $m
* @return string
*/
function smile_shield($m) {
return '';
}
function smile_unshield($m) {
return base64special_decode($m[1]);
}
/**
* @brief Expand <3333 to the correct number of hearts.
*
* @param array $x
*/
function preg_heart($x) {
if (strlen($x[1]) == 1)
return $x[0];
$t = '';
for($cnt = 0; $cnt < strlen($x[1]); $cnt ++)
$t .= '
';
$r = str_replace($x[0],$t,$x[0]);
return $r;
}
function day_translate($s) {
$ret = str_replace(array('Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday'),
array( t('Monday'), t('Tuesday'), t('Wednesday'), t('Thursday'), t('Friday'), t('Saturday'), t('Sunday')),
$s);
$ret = str_replace(array('January','February','March','April','May','June','July','August','September','October','November','December'),
array( t('January'), t('February'), t('March'), t('April'), t('May'), t('June'), t('July'), t('August'), t('September'), t('October'), t('November'), t('December')),
$ret);
return $ret;
}
/**
* @brief normalises a string.
*
* @param string $url
* @return string
*/
function normalise_link($url) {
if (!$url) {
return EMPTY_STR;
}
$ret = str_replace(array('https:', '//www.'), array('http:', '//'), $url);
return(rtrim($ret, '/'));
}
/**
* @brief Compare two URLs to see if they are the same.
*
* But ignore slight but hopefully insignificant differences such as if one
* is https and the other isn't, or if one is www.something and the other
* isn't - and also ignore case differences.
*
* @see normalise_link()
*
* @param string $a
* @param string $b
* @return true if the URLs match, otherwise false
*/
function link_compare($a, $b) {
if (strcasecmp(normalise_link($a), normalise_link($b)) === 0)
return true;
return false;
}
function theme_attachments(&$item) {
$s = '';
$arr = json_decode($item['attach'],true);
if(is_array($arr) && count($arr)) {
$attaches = [];
foreach($arr as $r) {
if(isset($r['type']))
$icon = getIconFromType($r['type']);
if(isset($r['title']))
$label = urldecode(htmlspecialchars($r['title'], ENT_COMPAT, 'UTF-8'));
if(! $label && isset($r['href']))
$label = basename($r['href']);
//some feeds provide an attachment where title an empty space
if(! $label || $label == ' ')
$label = t('Unknown Attachment');
$title = t('Size') . ' ' . (isset($r['length']) ? userReadableSize($r['length']) : t('unknown'));
require_once('include/channel.php');
if (isset($r['href'])) {
if(is_foreigner($item['author_xchan']))
$url = $r['href'];
else
$url = z_root() . '/magic?f=&owa=1&hash=' . $item['author_xchan'] . '&bdest=' . bin2hex($r['href'] . '/' . $r['revision']);
}
//$s .= '
' . $icon . ' ';
if (isset($label) && isset($url) && isset($icon) && isset($title))
$attaches[] = array('label' => $label, 'url' => $url, 'icon' => $icon, 'title' => $title);
}
if (count($attaches) > 0)
$s = replace_macros(get_markup_template('item_attach.tpl'), [
'$attaches' => $attaches
]);
}
return $s;
}
function format_categories(&$item,$writeable) {
$s = '';
$terms = get_terms_oftype($item['term'],TERM_CATEGORY);
if($terms) {
$categories = array();
foreach($terms as $t) {
$term = htmlspecialchars($t['term'],ENT_COMPAT,'UTF-8',false) ;
if(! trim($term))
continue;
$removelink = (($writeable) ? z_root() . '/filerm/' . $item['id'] . '?f=&cat=' . urlencode($t['term']) : '');
$categories[] = array('term' => $term, 'writeable' => $writeable, 'removelink' => $removelink, 'url' => zid($t['url']));
}
$s = replace_macros(get_markup_template('item_categories.tpl'),array(
'$remove' => t('remove category'),
'$categories' => $categories
));
}
return $s;
}
/**
* @brief Add any hashtags which weren't mentioned in the message body, e.g. community tags
*
* @param[in] array &$item
* @return string HTML link of hashtag
*/
function format_hashtags(&$item) {
$s = '';
$terms = get_terms_oftype($item['term'], array(TERM_HASHTAG,TERM_COMMUNITYTAG));
if($terms) {
foreach($terms as $t) {
$term = htmlspecialchars($t['term'], ENT_COMPAT, 'UTF-8', false) ;
if(! trim($term))
continue;
if(empty($t['url']))
continue;
if(strpos($item['body'], $t['url']) || stripos($item['body'], '#' . $t['term']))
continue;
if($s)
$s .= ' ';
$s .= '
' . $term . ' ';
}
}
return $s;
}
function format_mentions(&$item) {
$s = '';
$terms = get_terms_oftype($item['term'],TERM_MENTION);
if($terms) {
foreach($terms as $t) {
if(! isset($t['term']))
continue;
$term = htmlspecialchars($t['term'],ENT_COMPAT,'UTF-8',false) ;
if(! trim($term))
continue;
if(strpos($item['body'], $t['url']))
continue;
if($s)
$s .= ' ';
$s .= '
' . $term . ' ';
}
}
return $s;
}
function format_filer(&$item) {
$s = '';
$terms = get_terms_oftype($item['term'],TERM_FILE);
if($terms) {
$categories = array();
foreach($terms as $t) {
$term = htmlspecialchars($t['term'],ENT_COMPAT,'UTF-8',false) ;
if(! trim($term))
continue;
$removelink = z_root() . '/filerm/' . $item['id'] . '?f=&term=' . urlencode($t['term']);
$categories[] = array('term' => $term, 'removelink' => $removelink, 'id' => $item['id']);
}
$s = replace_macros(get_markup_template('item_filer.tpl'),array(
'$remove' => t('remove from file'),
'$categories' => $categories
));
}
return $s;
}
function generate_map($coord) {
$coord = trim($coord);
$coord = str_replace(array(',','/',' '),array(' ',' ',' '),$coord);
$arr = [
'lat' => trim(substr($coord, 0, strpos($coord, ' '))),
'lon' => trim(substr($coord, strpos($coord, ' ')+1)),
'html' => ''
];
/**
* @hooks generate_map
* * \e string \b lat
* * \e string \b lon
* * \e string \b html the parsed HTML to return
*/
call_hooks('generate_map', $arr);
return (($arr['html']) ? $arr['html'] : $coord);
}
function generate_named_map($location) {
$arr = [
'location' => $location,
'html' => ''
];
/**
* @hooks generate_named_map
* * \e string \b location
* * \e string \b html the parsed HTML to return
*/
call_hooks('generate_named_map', $arr);
return (($arr['html']) ? $arr['html'] : $location);
}
function prepare_body(&$item,$attach = false,$opts = false) {
/**
* @hooks prepare_body_init
* * \e array \b item
*/
call_hooks('prepare_body_init', $item);
$s = '';
$photo = '';
$is_photo = ((($item['verb'] === ACTIVITY_POST) && ($item['obj_type'] === ACTIVITY_OBJ_PHOTO)) ? true : false);
if ($is_photo) {
$object = json_decode($item['obj'],true);
$ptr = null;
if (is_array($object) && array_key_exists('url',$object) && is_array($object['url'])) {
if (array_key_exists(0,$object['url'])) {
foreach ($object['url'] as $link) {
if(array_key_exists('width',$link) && $link['width'] >= 640 && $link['width'] <= 1024) {
$ptr = $link;
}
}
if (! $ptr) {
$ptr = $object['url'][0];
}
}
else {
$ptr = $object['url'];
}
// if original photo width is > 640px make it a cover photo
if ($ptr) {
if (array_key_exists('width',$ptr) && $ptr['width'] > 640) {
$photo = '
';
}
else {
$item['body'] = '[zmg]' . $ptr['href'] . '[/zmg]' . "\n\n" . $item['body'];
}
}
}
}
if($item['item_obscured']) {
$s .= prepare_binary($item);
}
else {
if($item['summary']) {
$s .= prepare_text('[summary]' . $item['summary'] . '[/summary]' . $item['body'],$item['mimetype'],$opts);
}
else {
$s .= prepare_text($item['body'],$item['mimetype'], $opts);
}
}
$poll = (($item['obj_type'] === 'Question' && in_array($item['verb'],[ ACTIVITY_POST, ACTIVITY_UPDATE, ACTIVITY_SHARE ])) ? format_poll($item, $s, $opts) : false);
if ($poll) {
$s = $poll;
}
$event = (($item['obj_type'] === ACTIVITY_OBJ_EVENT) ? format_event_obj($item['obj']) : false);
$prep_arr = [
'item' => $item,
'html' => $event ? $event['content'] : $s,
'event' => $event['header'],
'photo' => $photo
];
/**
* @hooks prepare_body
* * \e array \b item
* * \e string \b html - the parsed HTML to return
* * \e string \b event - the event header to return
* * \e string \b photo - the photo to return
*/
call_hooks('prepare_body', $prep_arr);
$s = $prep_arr['html'];
$photo = $prep_arr['photo'];
$event = $prep_arr['event'];
if(! $attach) {
return $s;
}
if(strpos($s,'
') !== false && $item['coord']) {
$x = generate_map(trim($item['coord']));
if($x) {
$s = preg_replace('/\
/','$0' . $x,$s);
}
}
$attachments = theme_attachments($item);
$writeable = ((get_observer_hash() == $item['owner_xchan']) ? true : false);
$tags = format_hashtags($item);
if($item['resource_type'] == 'photo')
$mentions = format_mentions($item);
$categories = format_categories($item,$writeable);
if(local_channel() == $item['uid'])
$filer = format_filer($item);
if($s)
$s = sslify($s);
if($photo)
$photo = sslify($photo);
if($event)
$event = sslify($event);
$prep_arr = array(
'item' => $item,
'photo' => $photo,
'html' => $s,
'event' => $event,
'categories' => $categories,
'folders' => $filer,
'tags' => $tags,
'mentions' => $mentions,
'attachments' => $attachments
);
call_hooks('prepare_body_final', $prep_arr);
unset($prep_arr['item']);
return $prep_arr;
}
function prepare_binary($item) {
return replace_macros(get_markup_template('item_binary.tpl'), [
'$download' => t('Download binary/encrypted content'),
'$url' => z_root() . '/viewsrc/' . $item['id'] . '/download'
]);
}
function format_poll($item,$s,$opts) {
if (! is_array($item['obj'])) {
$act = json_decode($item['obj'],true);
}
else {
$act = $item['obj'];
}
if (! is_array($act)) {
return EMPTY_STR;
}
$commentable = can_comment_on_post(((local_channel()) ? get_observer_hash() : EMPTY_STR), $item);
$activated = ((local_channel() && local_channel() == $item['uid'] && get_observer_hash() !== $item['owner_xchan']) ? true : false);
$output = $s;
if (strpos($item['body'], '[/share]') !== false) {
$output = substr($output, 0, -12);
}
$output .= EOL . EOL;
if ($act['type'] === 'Question') {
if ($activated and $commentable) {
$output .= '
';
}
if (strpos($item['body'], '[/share]') !== false) {
$output .= '
';
}
}
return $output;
}
/**
* @brief Given a text string, convert from content_type to HTML.
*
* Take a text in plain text, html, markdown, bbcode, PDL or PHP and prepare
* it to return HTML.
*
* In bbcode this function will add smilie icons.
*
* @param string $text
* @param string $content_type (optional)
* default 'text/bbcode', other values are 'text/plain', 'text/html',
* 'text/markdown', 'application/x-pdl', 'application/x-php'
* @param boolean|array $opts (optional)
* default false, otherwise configuration array for bbcode()
* @return string
* The parsed $text as prepared HTML.
*/
function prepare_text($text, $content_type = 'text/bbcode', $opts = false) {
switch($content_type) {
case 'text/plain':
$s = escape_tags($text);
break;
case 'text/html':
$s = $text;
break;
case 'text/markdown':
$text = Zlib\MarkdownSoap::unescape($text);
$s = MarkdownExtra::defaultTransform($text);
break;
case 'application/x-pdl';
$s = escape_tags($text);
break;
// No security checking is done here at display time - so we need to verify
// that the author is allowed to use PHP before storing. We also cannot allow
// importation of PHP text bodies from other sites. Therefore this content
// type is only valid for web pages (and profile details).
// It may be possible to provide a PHP message body which is evaluated on the
// sender's site before sending it elsewhere. In that case we will have a
// different content-type here.
case 'application/x-php':
ob_start();
eval($text);
$s = ob_get_contents();
ob_end_clean();
break;
case 'text/bbcode':
case '':
default:
require_once('include/bbcode.php');
if(stristr($text, '[nosmile]'))
$s = bbcode($text, ((is_array($opts)) ? $opts : [] ));
else
$s = smilies(bbcode($text, ((is_array($opts)) ? $opts : [] )));
$s = zidify_links($s);
break;
}
//logger('prepare_text: ' . $s);
return $s;
}
function create_export_photo_body(&$item) {
if(($item['verb'] === ACTIVITY_POST) && ($item['obj_type'] === ACTIVITY_OBJ_PHOTO)) {
$j = json_decode($item['obj'],true);
if($j) {
$item['body'] .= "\n\n" . (($j['body']) ? $j['body'] : $j['bbcode']);
$item['sig'] = '';
}
}
}
/**
* @brief Return atom link elements for all of our hubs.
*
* @return string
*/
function feed_hublinks() {
$hub = get_config('system', 'huburl');
$hubxml = '';
if(strlen($hub)) {
$hubs = explode(',', $hub);
if(count($hubs)) {
foreach($hubs as $h) {
$h = trim($h);
if(! strlen($h))
continue;
$hubxml .= '
' . "\n" ;
}
}
}
return $hubxml;
}
/**
* @brief Return atom link elements for salmon endpoints
*
* @param string $nick
* @return string
*/
function feed_salmonlinks($nick) {
$salmon = '
' . "\n" ;
// old style links that status.net still needed as of 12/2010
$salmon .= '
' . "\n" ;
$salmon .= '
' . "\n" ;
return $salmon;
}
function get_plink($item,$conversation_mode = true) {
if($conversation_mode)
$key = 'plink';
else
$key = 'llink';
$zidify = true;
if(array_key_exists('author',$item) && $item['author']['xchan_network'] !== 'zot6')
$zidify = false;
if(x($item,$key)) {
return array(
'href' => (($zidify) ? zid($item[$key]) : $item[$key]),
'title' => t('Link to Source'),
);
}
else {
return false;
}
}
function unamp($s) {
return str_replace('&', '&', $s);
}
function layout_select($channel_id, $current = '') {
$r = q("select mid, v from item left join iconfig on iconfig.iid = item.id
where iconfig.cat = 'system' and iconfig.k = 'PDL' and item.uid = %d and item_type = %d ",
intval($channel_id),
intval(ITEM_TYPE_PDL)
);
if($r) {
$empty_selected = (($current === false) ? ' selected="selected" ' : '');
$options .= '
' . t('default') . ' ';
foreach($r as $rr) {
$selected = (($rr['mid'] == $current) ? ' selected="selected" ' : '');
$options .= '
' . $rr['v'] . ' ';
}
}
$o = replace_macros(get_markup_template('field_select_raw.tpl'), array(
'$field' => array('layout_mid', t('Page layout'), $selected, t('You can create your own with the layouts tool'), $options)
));
return $o;
}
function mimetype_select($channel_id, $current = 'text/bbcode', $choices = null, $element = 'mimetype') {
$x = (($choices) ? $choices : [
'text/bbcode' => t('BBcode'),
'text/html' => t('HTML'),
'text/markdown' => t('Markdown'),
'text/plain' => t('Text'),
'application/x-pdl' => t('Comanche Layout')
]);
if((App::$is_sys) || (channel_codeallowed($channel_id) && $channel_id == local_channel())){
$x['application/x-php'] = t('PHP');
}
foreach($x as $y => $z) {
$selected = (($y == $current) ? ' selected="selected" ' : '');
$options .= '
' . $z . ' ';
}
$o = replace_macros(get_markup_template('field_select_raw.tpl'), array(
'$field' => array( $element, t('Page content type'), $selected, '', $options)
));
return $o;
}
function engr_units_to_bytes ($size_str) {
if(! $size_str)
return $size_str;
switch (substr(trim($size_str), -1)) {
case 'M': case 'm': return (int)$size_str * 1048576;
case 'K': case 'k': return (int)$size_str * 1024;
case 'G': case 'g': return (int)$size_str * 1073741824;
default: return $size_str;
}
}
function base64url_encode($s, $strip_padding = true) {
$s = strtr(base64_encode($s),'+/','-_');
if($strip_padding)
$s = str_replace('=','',$s);
return $s;
}
function base64url_decode($s, $strict = false) {
if(is_array($s)) {
logger('base64url_decode: illegal input: ' . print_r(debug_backtrace(), true));
return $s;
}
return base64_decode(strtr($s,'-_','+/'), $strict);
}
function base64special_encode($s, $strip_padding = true) {
$s = strtr(base64_encode($s),'+/',',.');
if($strip_padding)
$s = str_replace('=','',$s);
return $s;
}
function base64special_decode($s, $strict = false) {
if(is_array($s)) {
logger('base64url_decode: illegal input: ' . print_r(debug_backtrace(), true));
return $s;
}
return base64_decode(strtr($s,',.','+/'), $strict);
}
/**
* @brief Return a div to clear floats.
*
* @return string
*/
function cleardiv() {
return '
';
}
function bb_translate_video($s) {
$arr = array('string' => $s);
call_hooks('bb_translate_video',$arr);
return $arr['string'];
}
function html2bb_video($s) {
$arr = array('string' => $s);
call_hooks('html2bb_video',$arr);
return $arr['string'];
}
/**
* apply xmlify() to all values of array $val, recursively
*/
function array_xmlify($val) {
if (is_bool($val)) return $val?"true":"false";
if (is_array($val)) return array_map('array_xmlify', $val);
return xmlify((string) $val);
}
function reltoabs($text, $base) {
if (empty($base))
return $text;
$base = rtrim($base,'/');
$base2 = $base . "/";
// Replace links
$pattern = "/
]*) href=\"(?!http|https|\/)([^\"]*)\"/";
$replace = " ]*) href=\"(?!http|https)([^\"]*)\"/";
$replace = " ]*) src=\"(?!http|https|\/)([^\"]*)\"/";
$replace = " ]*) src=\"(?!http|https)([^\"]*)\"/";
$replace = " 1900) {
$y = date('Y');
if($i <= $y+1 && strpos($s,'-') == 4) {
$m = intval(substr($s,5));
if($m > 0 && $m <= 12)
return true;
}
}
return false;
}
function legal_webbie($s) {
if(! $s)
return '';
// WARNING: This regex may not work in a federated environment.
// You will probably want something like
// preg_replace('/([^a-z0-9\_])/','',strtolower($s));
$r = preg_replace('/([^a-z0-9\-\_])/','',strtolower($s));
$x = [ 'input' => $s, 'output' => $r ];
call_hooks('legal_webbie',$x);
return $x['output'];
}
function legal_webbie_text() {
// WARNING: This will not work in a federated environment.
$s = t('a-z, 0-9, -, and _ only');
$x = [ 'text' => $s ];
call_hooks('legal_webbie_text',$x);
return $x['text'];
}
function check_webbie($arr) {
// These names conflict with the CalDAV server
$taken = [ 'principals', 'addressbooks', 'calendars' ];
$reservechan = get_config('system','reserved_channels');
if(strlen($reservechan)) {
$taken = array_merge($taken,explode(',', $reservechan));
}
$str = '';
if(count($arr)) {
foreach($arr as $x) {
$y = legal_webbie($x);
if(strlen($y)) {
if($str)
$str .= ',';
$str .= "'" . dbesc($y) . "'";
}
}
if(strlen($str)) {
$r = q("select channel_address from channel where channel_address in ( $str ) ");
if(count($r)) {
foreach($r as $rr) {
$taken[] = $rr['channel_address'];
}
}
foreach($arr as $x) {
$y = legal_webbie($x);
if(! in_array($y,$taken)) {
return $y;
}
}
}
}
return '';
}
function ids_to_array($arr,$idx = 'id') {
$t = array();
if($arr) {
foreach($arr as $x) {
if(array_key_exists($idx,$x) && strlen($x[$idx]) && (! in_array($x[$idx],$t))) {
$t[] = $x[$idx];
}
}
}
return($t);
}
function ids_to_querystr($arr,$idx = 'id',$quote = false) {
$t = array();
if($arr) {
foreach($arr as $x) {
if(! in_array($x[$idx],$t)) {
if($quote)
$t[] = "'" . dbesc($x[$idx]) . "'";
else
$t[] = $x[$idx];
}
}
}
return(implode(',', $t));
}
/**
* @brief Extract unique individual elements from an array of arrays and return
* them as a string separated by a delimiter.
*
* Similar to ids_to_querystr, but allows a different delimiter instead of a
* db-quote option empty elements (evaluated after trim()) are ignored.
*
* @see ids_to_querystr()
*
* @param array $arr
* @param string $elm key to extract from sub-array
* @param string $delim (optional) default ','
* @param string $each (optional) default is 'trim'
* Filter function to apply to each element before evaluation.
* @returns string
*/
function array_elm_to_str($arr, $elm, $delim = ',', $each = 'trim') {
$tmp = [];
if($arr && is_array($arr)) {
foreach($arr as $x) {
if(is_array($x) && array_key_exists($elm,$x)) {
$z = $each($x[$elm]);
if(($z) && (! in_array($z,$tmp))) {
$tmp[] = $z;
}
}
}
}
return implode($delim, $tmp);
}
function trim_and_unpunify($s) {
return unpunify(trim($s));
}
/**
* @brief Fetches xchan and hubloc data for an array of items with only an
* author_xchan and owner_xchan.
*
* If $abook is true also include the abook info. This is needed in the API to
* save extra per item lookups there.
*
* @param[in,out] array &$items
* @param boolean $abook If true also include the abook info
* @param number $effective_uid
*/
function xchan_query(&$items, $abook = true, $effective_uid = 0) {
$arr = array();
if($items && count($items)) {
if($effective_uid) {
for($x = 0; $x < count($items); $x ++) {
$items[$x]['real_uid'] = $items[$x]['uid'];
$items[$x]['uid'] = $effective_uid;
}
}
foreach($items as $item) {
if($item['owner_xchan'] && (! in_array("'" . dbesc($item['owner_xchan']) . "'",$arr)))
$arr[] = "'" . dbesc($item['owner_xchan']) . "'";
if($item['author_xchan'] && (! in_array("'" . dbesc($item['author_xchan']) . "'",$arr)))
$arr[] = "'" . dbesc($item['author_xchan']) . "'";
}
}
if(count($arr)) {
if($abook) {
$chans = q("select * from xchan left join hubloc on hubloc_hash = xchan_hash left join abook on abook_xchan = xchan_hash and abook_channel = %d
where xchan_hash in (" . protect_sprintf(implode(',', $arr)) . ") and hubloc_primary = 1",
intval($item['uid'])
);
}
else {
$chans = q("select xchan.*,hubloc.* from xchan left join hubloc on hubloc_hash = xchan_hash
where xchan_hash in (" . protect_sprintf(implode(',', $arr)) . ") and hubloc_primary = 1");
}
$xchans = q("select * from xchan where xchan_hash in (" . protect_sprintf(implode(',',$arr)) . ") and xchan_network in ('rss','unknown', 'anon', 'token')");
if(! $chans)
$chans = $xchans;
else
$chans = array_merge($xchans,$chans);
}
if($items && count($items) && $chans && count($chans)) {
for($x = 0; $x < count($items); $x ++) {
$items[$x]['owner'] = find_xchan_in_array($items[$x]['owner_xchan'],$chans);
$items[$x]['author'] = find_xchan_in_array($items[$x]['author_xchan'],$chans);
}
}
}
function find_xchan_in_array($xchan,$arr) {
if(count($arr)) {
foreach($arr as $x) {
if($x['xchan_hash'] === $xchan) {
return $x;
}
}
}
return array();
}
function get_rel_link($j,$rel) {
if(is_array($j) && ($j))
foreach($j as $l)
if(array_key_exists('rel',$l) && $l['rel'] === $rel && array_key_exists('href',$l))
return $l['href'];
return '';
}
// Lots of code to write here
function magic_link($s) {
return $s;
}
/**
* @brief If $escape is true, dbesc() each element before adding quotes.
*
* @param[in,out] array &$arr
* @param boolean $escape (optional) default false
*/
function stringify_array_elms(&$arr, $escape = false) {
foreach($arr as $k => $v)
$arr[$k] = "'" . (($escape) ? dbesc($v) : $v) . "'";
}
/**
* @brief Similar to stringify_array_elms but returns a string. If $escape is true, dbesc() each element before adding quotes.
*
* @param array $arr
* @param boolean $escape (optional) default false
* @return string
*/
function stringify_array($arr, $escape = false) {
if($arr) {
stringify_array_elms($arr);
return(implode(',',$arr));
}
return EMPTY_STR;
}
/**
* @brief Indents a flat JSON string to make it more human-readable.
*
* @param string $json The original JSON string to process.
* @return string Indented version of the original JSON string.
*/
function jindent($json) {
$result = '';
$pos = 0;
$strLen = strlen($json);
$indentStr = ' ';
$newLine = "\n";
$prevChar = '';
$outOfQuotes = true;
for ($i=0; $i<=$strLen; $i++) {
// Grab the next character in the string.
$char = substr($json, $i, 1);
// Are we inside a quoted string?
if ($char == '"' && $prevChar != '\\') {
$outOfQuotes = !$outOfQuotes;
// If this character is the end of an element,
// output a new line and indent the next line.
} else if(($char == '}' || $char == ']') && $outOfQuotes) {
$result .= $newLine;
$pos --;
for ($j=0; $j<$pos; $j++) {
$result .= $indentStr;
}
}
// Add the character to the result string.
$result .= $char;
// If the last character was the beginning of an element,
// output a new line and indent the next line.
if (($char == ',' || $char == '{' || $char == '[') && $outOfQuotes) {
$result .= $newLine;
if ($char == '{' || $char == '[') {
$pos ++;
}
for ($j = 0; $j < $pos; $j++) {
$result .= $indentStr;
}
}
$prevChar = $char;
}
return $result;
}
/**
* @brief Creates navigation menu for webpage, layout, blocks, menu sites.
*
* @return string with parsed HTML
*/
function design_tools() {
$channel = channelx_by_n(App::$profile['profile_uid']);
$sys = false;
if(App::$is_sys && is_site_admin()) {
require_once('include/channel.php');
$channel = get_sys_channel();
$sys = true;
}
$who = $channel['channel_address'];
return replace_macros(get_markup_template('design_tools.tpl'), array(
'$title' => t('Design Tools'),
'$who' => $who,
'$sys' => $sys,
'$blocks' => t('Blocks'),
'$menus' => t('Menus'),
'$layout' => t('Layouts'),
'$pages' => t('Pages')
));
}
/**
* @brief Creates website portation tools menu.
*
* @return string Parsed HTML code from template 'website_portation_tools.tpl'
*/
function website_portation_tools() {
return replace_macros(get_markup_template('website_portation_tools.tpl'), [
'$title' => t('Import'),
'$import_label' => t('Import website...'),
'$import_placeholder' => t('Select folder to import'),
'$file_upload_text' => t('Import from a zipped folder:'),
'$file_import_text' => t('Import from cloud files:'),
'$desc' => t('/cloud/channel/path/to/folder'),
'$hint' => t('Enter path to website files'),
'$select' => t('Select folder'),
'$export_label' => t('Export website...'),
'$file_download_text' => t('Export to a zip file'),
'$filename_desc' => t('website.zip'),
'$filename_hint' => t('Enter a name for the zip file.'),
'$cloud_export_text' => t('Export to cloud files'),
'$cloud_export_desc' => t('/path/to/export/folder'),
'$cloud_export_hint' => t('Enter a path to a cloud files destination.'),
'$cloud_export_select' => t('Specify folder'),
]);
}
/**
* @brief case insensitive in_array()
*
* @param string $needle
* @param array $haystack
* @return boolean
*/
function in_arrayi($needle, $haystack) {
return in_array(strtolower($needle), array_map('strtolower', $haystack));
}
function normalise_openid($s) {
return trim(str_replace(array('http://','https://'),array('',''),$s),'/');
}
/**
* Used in ajax endless scroll request to find out all the args that the master page was viewing.
* This was using $_REQUEST, but $_REQUEST also contains all your cookies. So we're restricting it
* to $_GET and $_POST.
*
* @return string with additional URL parameters
*/
function extra_query_args() {
$s = '';
if(count($_GET)) {
foreach($_GET as $k => $v) {
// these are request vars we don't want to duplicate
if(! in_array($k, array('q','f','zid','page','PHPSESSID'))) {
$s .= '&' . $k . '=' . urlencode($v);
}
}
}
if(count($_POST)) {
foreach($_POST as $k => $v) {
// these are request vars we don't want to duplicate
if(! in_array($k, array('q','f','zid','page','PHPSESSID'))) {
$s .= '&' . $k . '=' . urlencode($v);
}
}
}
return $s;
}
/**
* @brief This function removes the tag $tag from the text $body and replaces it
* with the appropiate link.
*
* @param App $a
* @param[in,out] string &$body the text to replace the tag in
* @param[in,out] string &$access_tag used to return tag ACL exclusions e.g. @!foo
* @param[in,out] string &$str_tags string to add the tag to
* @param int $profile_uid
* @param string $tag the tag to replace
* @param boolean $in_network default true
* @return boolean true if replaced, false if not replaced
*/
function handle_tag(&$body, &$str_tags, $profile_uid, $tag, $in_network = true) {
$channel = App::get_channel();
$replaced = false;
$r = null;
$match = array();
$termtype = ((strpos($tag,'#') === 0) ? TERM_HASHTAG : TERM_UNKNOWN);
$termtype = ((strpos($tag,'@') === 0) ? TERM_MENTION : $termtype);
// $termtype = ((strpos($tag,'!') === 0) ? TERM_FORUM : $termtype);
$termtype = ((strpos($tag,'#^[') === 0) ? TERM_BOOKMARK : $termtype);
// Is it a hashtag of some kind?
if ( in_array($termtype, [ TERM_HASHTAG, TERM_BOOKMARK ] )) {
if($termtype === TERM_BOOKMARK) {
if(preg_match('/#\^\[(url|zrl)(.*?)\](.*?)\[\/(url|zrl)\]/',$tag,$match)) {
$basetag = $match[3];
$url = ((substr($match[2],0,1) === '=') ? substr($match[2],1) : $match[3]);
$replaced = true;
}
}
// if the tag is already replaced...
elseif((strpos($tag,'[zrl=')) || (strpos($tag,'[url='))) {
// ...do nothing
return $replaced;
}
if(! $replaced) {
// double-quoted hashtags: base tag has the htmlentity name only
if((substr($tag,0,7) === '#"') && (substr($tag,-6,6) === '"')) {
$basetag = substr($tag,7);
$basetag = substr($basetag,0,-6);
}
elseif((substr($tag,0,2) === '#"') && (substr($tag,-1,1) === '"')) {
$basetag = substr($tag,2);
$basetag = substr($basetag,0,-1);
}
else
$basetag = substr($tag,1);
// create text for link
$url = z_root() . '/search?tag=' . rawurlencode($basetag);
$newtag = '#[zrl=' . z_root() . '/search?tag=' . rawurlencode($basetag) . ']' . $basetag . '[/zrl]';
// replace tag by the link. Make sure to not replace something in the middle of a word
$body = preg_replace('/(? $replaced,
'termtype' => $termtype,
'term' => $basetag,
'url' => $url,
'contact' => [],
'access_tag' => '',
]];
}
// END hashtags
// BEGIN mentions
if ($termtype === TERM_MENTION) {
// The @! tag will alter permissions
// $in_network is set to false to avoid false positives on posts originating
// on a network which does not implement privacy tags or implements them differently.
$exclusive = (((strpos(substr($tag,1), '!') === 0) && $in_network) ? true : false);
//is it already replaced?
if(strpos($tag,"[zrl=") || strpos($tag,"[url="))
return $replaced;
// get the channel name
// First extract the name or name fragment we are going to replace
$name = substr($tag,(($exclusive) ? 2 : 1));
$newname = $name; // make a copy that we can mess with
$r = null;
// is it some generated (autocompleted) name?
if(substr($name,0,1) === '{' && substr($name,-1,1) === '}') {
$newname = substr($name,1);
$newname = substr($newname,0,-1);
$r = q("SELECT * FROM xchan WHERE ( xchan_addr = '%s' OR xchan_url = '%s' ) AND xchan_deleted = 0",
dbesc($newname),
dbesc($newname)
);
}
if(! $r) {
// look for matching names in the address book
// Double quote the entire mentioned term to include special characters
// such as spaces and some punctuation.
// We see this after input filtering so quotes have been html entity encoded
if((substr($name,0,6) === '"') && (substr($name,-6,6) === '"')) {
$newname = substr($name,6);
$newname = substr($newname,0,-6);
}
elseif((substr($name,0,1) === '"') && (substr($name,-1,1) === '"')) {
$newname = substr($name,1);
$newname = substr($newname,0,-1);
}
// select someone from this user's contacts by name
$r = q("SELECT * FROM abook LEFT JOIN xchan ON abook_xchan = xchan_hash
WHERE xchan_name = '%s' AND abook_channel = %d AND xchan_deleted = 0",
dbesc($newname),
intval($profile_uid)
);
// select anybody by full hubloc_addr
if((! $r) && strpos($newname,'@')) {
$r = q("SELECT * FROM xchan LEFT JOIN hubloc ON xchan_hash = hubloc_hash
WHERE hubloc_addr = '%s' AND xchan_deleted = 0 ",
dbesc($newname)
);
}
// select someone by attag or nick and the name passed in
if(! $r) {
// strip user-supplied wildcards before running a wildcard search
$newname = str_replace('%','',$newname);
$r = q("SELECT * FROM abook LEFT JOIN xchan ON abook_xchan = xchan_hash
WHERE xchan_addr LIKE ('%s') AND abook_channel = %d AND xchan_deleted = 0",
dbesc(((strpos($newname,'@')) ? $newname : $newname . '@%')),
intval($profile_uid)
);
}
}
$fn_results = [];
$access_tag = EMPTY_STR;
// $r is set if we found something
if($r) {
$xchan[0] = Libzot::zot_record_preferred($r, 'xchan_network');
foreach($xchan as $xc) {
$profile = $xc['xchan_url'];
$newname = $xc['xchan_name'];
// add the channel's xchan_hash to $access_tag if exclusive
if($exclusive) {
$access_tag = 'cid:' . $xc['xchan_hash'];
}
// if there is a url for this channel
if(isset($profile)) {
$replaced = true;
//create profile link
$profile = str_replace(',','%2c',$profile);
$url = $profile;
$newtag = '@' . (($exclusive) ? '!' : '') . '[zrl=' . $profile . ']' . $newname . '[/zrl]';
$body = str_replace('@' . (($exclusive) ? '!' : '') . $name, $newtag, $body);
// append tag to str_tags
if(! stristr($str_tags,$newtag)) {
if(strlen($str_tags))
$str_tags .= ',';
$str_tags .= $newtag;
}
}
$fn_results[] = [
'replaced' => $replaced,
'termtype' => $termtype,
'term' => $newname,
'url' => $url,
'access_tag' => $access_tag,
'contact' => (($r) ? $xc : []),
];
}
}
else {
// check for a group/collection exclusion tag
// note that we aren't setting $replaced even though we're replacing text.
// This tag isn't going to get a term attached to it. It's only used for
// access control. The link points to out own channel just so it doesn't look
// weird - as all the other tags are linked to something.
if(local_channel() && local_channel() == $profile_uid) {
$grp = AccessList::by_name($profile_uid,$name);
if($grp) {
$g = q("select hash from pgrp where id = %d and visible = 1 limit 1",
intval($grp)
);
if($g && $exclusive) {
$access_tag .= 'gid:' . $g[0]['hash'];
}
$channel = App::get_channel();
if($channel) {
$newtag = '@' . (($exclusive) ? '!' : '') . '[zrl=' . z_root() . '/channel/' . $channel['channel_address'] . ']' . $newname . '[/zrl]';
$body = str_replace('@' . (($exclusive) ? '!' : '') . $name, $newtag, $body);
}
}
}
// if there is a url for this channel
if(isset($profile)) {
$replaced = true;
//create profile link
$profile = str_replace(',','%2c',$profile);
$url = $profile;
/*
if($termtype === TERM_FORUM) {
$newtag = '!' . (($exclusive) ? '!' : '') . '[zrl=' . $profile . ']' . $newname . '[/zrl]';
$body = str_replace('!' . (($exclusive) ? '!' : '') . $name, $newtag, $body);
}
*/
if ($termtype === TERM_MENTION) {
$newtag = '@' . (($exclusive) ? '!' : '') . '[zrl=' . $profile . ']' . $newname . '[/zrl]';
$body = str_replace('@' . (($exclusive) ? '!' : '') . $name, $newtag, $body);
}
// append tag to str_tags
if(! stristr($str_tags,$newtag)) {
if(strlen($str_tags))
$str_tags .= ',';
$str_tags .= $newtag;
}
}
$fn_results[] = [
'replaced' => $replaced,
'termtype' => $termtype,
'term' => $newname,
'url' => $url,
'access_tag' => $access_tag,
'contact' => [],
];
}
}
return $fn_results;
}
function linkify_tags(&$body, $uid, $in_network = true) {
$str_tags = EMPTY_STR;
$results = [];
$tags = get_tags($body);
if(count($tags)) {
foreach($tags as $tag) {
$success = handle_tag($body, $str_tags, ($uid) ? $uid : App::$profile_uid , $tag, $in_network);
foreach($success as $handled_tag) {
$results[] = [ 'success' => $handled_tag ];
}
}
}
return $results;
}
/**
* @brief returns icon name for use with e.g. font-awesome based on mime-type.
*
* These are the the font-awesome names of version 3.2.1. The newer font-awesome
* 4 has different names.
*
* @param string $type mime type
* @return string
* @todo rename to get_icon_from_type()
*/
function getIconFromType($type) {
$iconMap = array(
//Folder
'Collection' => 'fa-folder-o',
'multipart/mixed' => 'fa-folder-o', //dirs in attach use this mime type
//Common file
'application/octet-stream' => 'fa-file-o',
//Text
'text/plain' => 'fa-file-text-o',
'text/markdown' => 'fa-file-text-o',
'text/bbcode' => 'fa-file-text-o',
'text/html' => 'fa-file-text-o',
'application/msword' => 'fa-file-word-o',
'application/pdf' => 'fa-file-pdf-o',
'application/vnd.oasis.opendocument.text' => 'fa-file-word-o',
'application/epub+zip' => 'fa-book',
//Spreadsheet
'application/vnd.oasis.opendocument.spreadsheet' => 'fa-file-excel-o',
'application/vnd.ms-excel' => 'fa-file-excel-o',
//Image
'image/jpeg' => 'fa-picture-o',
'image/png' => 'fa-picture-o',
'image/gif' => 'fa-picture-o',
'image/webp' => 'fa-picture-o',
'image/svg+xml' => 'fa-picture-o',
//Archive
'application/zip' => 'fa-file-archive-o',
'application/x-rar-compressed' => 'fa-file-archive-o',
//Audio
'audio/mpeg' => 'fa-file-audio-o',
'audio/wav' => 'fa-file-audio-o',
'application/ogg' => 'fa-file-audio-o',
'audio/ogg' => 'fa-file-audio-o',
'audio/webm' => 'fa-file-audio-o',
'audio/mp4' => 'fa-file-audio-o',
//Video
'video/quicktime' => 'fa-file-video-o',
'video/webm' => 'fa-file-video-o',
'video/mp4' => 'fa-file-video-o',
'video/x-matroska' => 'fa-file-video-o'
);
$catMap = [
'application' => 'fa-file-code-o',
'multipart' => 'fa-folder',
'audio' => 'fa-file-audio-o',
'video' => 'fa-file-video-o',
'text' => 'fa-file-text-o',
'image' => 'fa=file-picture-o',
'message' => 'fa-file-text-o'
];
$iconFromType = '';
if (array_key_exists($type, $iconMap)) {
$iconFromType = $iconMap[$type];
}
else {
$parts = explode('/',$type);
if($parts[0] && $catMap[$parts[0]]) {
$iconFromType = $catMap[$parts[0]];
}
}
if(! $iconFromType) {
$iconFromType = 'fa-file-o';
}
return $iconFromType;
}
/**
* @brief Returns a human readable formatted string for filesizes.
*
* @param int $size filesize in bytes
* @return string human readable formatted filesize
* @todo rename to user_readable_size()
*/
function userReadableSize($size) {
$ret = '';
if (is_numeric($size)) {
$incr = 0;
$k = 1024;
$unit = array('bytes', 'KB', 'MB', 'GB', 'TB', 'PB');
while (($size / $k) >= 1){
$incr++;
$size = round($size / $k, 2);
}
$ret = $size . ' ' . $unit[$incr];
}
return $ret;
}
function str_rot47($str) {
return strtr($str,
'!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~',
'PQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~!"#$%&\'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNO');
}
function string_replace($old,$new,&$s) {
$x = str_replace($old,$new,$s);
$replaced = false;
if($x !== $s) {
$replaced = true;
}
$s = $x;
return $replaced;
}
function json_url_replace($old,$new,&$s) {
$old = str_replace('/','\\/',$old);
$new = str_replace('/','\\/',$new);
$x = str_replace($old,$new,$s);
$replaced = false;
if($x !== $s) {
$replaced = true;
}
$s = $x;
return $replaced;
}
function item_url_replace($channel,&$item,$old,$new,$oldnick = '') {
if($item['attach']) {
json_url_replace($old,$new,$item['attach']);
if($oldnick && ($oldnick !== $channel['channel_address']))
json_url_replace('/' . $oldnick . '/' ,'/' . $channel['channel_address'] . '/' ,$item['attach']);
}
if($item['object']) {
json_url_replace($old,$new,$item['object']);
if($oldnick && ($oldnick !== $channel['channel_address']))
json_url_replace('/' . $oldnick . '/' ,'/' . $channel['channel_address'] . '/' ,$item['object']);
}
if($item['target']) {
json_url_replace($old,$new,$item['target']);
if($oldnick && ($oldnick !== $channel['channel_address']))
json_url_replace('/' . $oldnick . '/' ,'/' . $channel['channel_address'] . '/' ,$item['target']);
}
$root_replaced = null;
$nick_replaced = null;
$item['body'] = str_replace($old, $new, $item['body'], $root_replaced);
if($oldnick && ($oldnick !== $channel['channel_address'])) {
$item['body'] = str_replace('/' . $oldnick . '/', '/' . $channel['channel_address'] . '/', $item['body'], $nick_replaced);
}
if ($root_replaced || $nick_replaced) {
$item['sig'] = Libzot::sign($item['body'], $channel['channel_prvkey']);
$item['item_verified'] = 1;
}
$item['plink'] = str_replace($old,$new,$item['plink']);
if($oldnick && ($oldnick !== $channel['channel_address']))
$item['plink'] = str_replace('/' . $oldnick . '/' ,'/' . $channel['channel_address'] . '/' ,$item['plink']);
$item['llink'] = str_replace($old,$new,$item['llink']);
if($oldnick && ($oldnick !== $channel['channel_address']))
$item['llink'] = str_replace('/' . $oldnick . '/' ,'/' . $channel['channel_address'] . '/' ,$item['llink']);
if($item['term']) {
for($x = 0; $x < count($item['term']); $x ++) {
$item['term'][$x]['url'] = str_replace($old,$new,$item['term'][$x]['url']);
if ($oldnick && ($oldnick !== $channel['channel_address'])) {
$item['term'][$x]['url'] = str_replace('/' . $oldnick . '/' ,'/' . $channel['channel_address'] . '/' ,$item['term'][$x]['url']);
}
}
}
}
/**
* @brief Used to wrap ACL elements in angle brackets for storage.
*
* @param[in,out] array &$item
*/
function sanitise_acl(&$item) {
if (strlen($item))
$item = '<' . notags(trim(urldecode($item))) . '>';
else
unset($item);
}
/**
* @brief Convert an ACL array to a storable string.
*
* @param array $p
* @return array
*/
function perms2str($p) {
$ret = '';
if (is_array($p))
$tmp = $p;
else
$tmp = explode(',', $p);
if (is_array($tmp)) {
array_walk($tmp, 'sanitise_acl');
$ret = implode('', $tmp);
}
return $ret;
}
/**
* @brief Turn user/group ACLs stored as angle bracketed text into arrays.
*
* turn string array of angle-bracketed elements into string array
* e.g. "<123xyz><246qyo>" => array(123xyz,246qyo,sxo33e);
*
* @param string $s
* @return array
*/
function expand_acl($s) {
$ret = array();
if(strlen($s)) {
$t = str_replace('<','',$s);
$a = explode('>',$t);
foreach($a as $aa) {
if($aa)
$ret[] = $aa;
}
}
return $ret;
}
function acl2json($s) {
$s = expand_acl($s);
$s = json_encode($s);
return $s;
}
/**
* @brief When editing a webpage - a dropdown is needed to select a page layout
*
* On submit, the pdl_select value (which is the mid of an item with item_type = ITEM_TYPE_PDL)
* is stored in the webpage's resource_id, with resource_type 'pdl'.
*
* Then when displaying a webpage, we can see if it has a pdl attached. If not we'll
* use the default site/page layout.
*
* If it has a pdl we'll load it as we know the mid and pass the body through comanche_parser() which will generate the
* page layout from the given description
*
* @FIXME - there is apparently a very similar function called layout_select; this one should probably take precedence
* and the other should be checked for compatibility and removed
*
* @param int $uid
* @param string $current
* @return string HTML code for dropdown
*/
function pdl_selector($uid, $current='') {
$o = '';
$sql_extra = item_permissions_sql($uid);
$r = q("select iconfig.*, mid from iconfig left join item on iconfig.iid = item.id
where item.uid = %d and iconfig.cat = 'system' and iconfig.k = 'PDL' $sql_extra order by v asc",
intval($uid)
);
$arr = ['channel_id' => $uid, 'current' => $current, 'entries' => $r];
/**
* @hooks pdl_selector
* * \e int \b channel_id
* * \e string \b current
* * \e array \b entries - Result from database query
*/
call_hooks('pdl_selector', $arr);
$entries = $arr['entries'];
$current = $arr['current'];
$o .= '';
$entries[] = array('title' => t('Default'), 'mid' => '');
foreach($entries as $selection) {
$selected = (($selection == $current) ? ' selected="selected" ' : '');
$o .= "{$selection['v']} ";
}
$o .= ' ';
return $o;
}
/**
* @brief returns a one-dimensional array from a multi-dimensional array
* empty values are discarded
*
* example: print_r(flatten_array_recursive(array('foo','bar',array('baz','blip',array('zob','glob')),'','grip')));
*
* Array ( [0] => foo [1] => bar [2] => baz [3] => blip [4] => zob [5] => glob [6] => grip )
*
* @param array $arr multi-dimensional array
* @return one-dimensional array
*/
function flatten_array_recursive($arr) {
$ret = array();
if(! $arr)
return $ret;
foreach($arr as $a) {
if(is_array($a)) {
$tmp = flatten_array_recursive($a);
if($tmp) {
$ret = array_merge($ret, $tmp);
}
}
elseif(isset($a)) {
$ret[] = $a;
}
}
return($ret);
}
/**
* @brief Highlight Text.
*
* @param string $s Text to highlight
* @param string $lang Which language should be highlighted
* @return string
* Important: The returned text has the text pattern 'http' translated to '%eY9-!' which should be converted back
* after further processing. This was done to prevent oembed links from occurring inside code blocks.
* See include/bbcode.php
*/
function text_highlight($s, $lang) {
if($lang === 'js')
$lang = 'javascript';
if($lang === 'json') {
$lang = 'javascript';
if(! strpos(trim($s), "\n"))
$s = jindent($s);
}
$arr = [
'text' => $s,
'language' => $lang,
'success' => false
];
/**
* @hooks text_highlight
* * \e string \b text
* * \e string \b language
* * \e boolean \b success default false
*/
call_hooks('text_highlight', $arr);
if($arr['success'])
$o = $arr['text'];
else
$o = $s;
$o = str_replace('http','%eY9-!',$o);
return('' . $o . '
');
}
// function to convert multi-dimensional array to xml
// create new instance of simplexml
// $xml = new SimpleXMLElement(' ');
// function callback
// array2XML($xml, $my_array);
// save as xml file
// echo (($xml->asXML('data.xml')) ? 'Your XML file has been generated successfully!' : 'Error generating XML file!');
function arrtoxml($root_elem,$arr) {
$xml = new SimpleXMLElement('<' . $root_elem . '>' . $root_elem . '>', null, false);
array2XML($xml,$arr);
return $xml->asXML();
}
function array2XML($obj, $array) {
foreach ($array as $key => $value) {
if(is_numeric($key))
$key = 'item' . $key;
if(is_array($value)) {
$node = $obj->addChild($key);
array2XML($node, $value);
}
else {
$obj->addChild($key, htmlspecialchars($value));
}
}
}
/**
* @brief Inserts an array into $table.
*
* @TODO Why is this function in include/text.php?
*
* @param string $table
* @param array $arr
* @param array $binary_fields - fields which will be cleansed with dbescbin rather than dbesc; this is critical for postgres
* @return boolean|PDOStatement
*/
function create_table_from_array($table, $arr, $binary_fields = []) {
if(! ($arr && $table))
return false;
$columns = db_columns($table);
$clean = [];
foreach($arr as $k => $v) {
if(! in_array($k,$columns)) {
continue;
}
$matches = false;
if(preg_match('/([^a-zA-Z0-9\-\_\.])/',$k,$matches)) {
return false;
}
if(in_array($k,$binary_fields)) {
$clean[$k] = dbescbin($v);
}
else {
$clean[$k] = dbesc($v);
}
}
$r = dbq("INSERT INTO " . TQUOT . $table . TQUOT . " (" . TQUOT
. implode(TQUOT . ', ' . TQUOT, array_keys($clean))
. TQUOT . ") VALUES ('"
. implode("', '", array_values($clean))
. "')"
);
return $r;
}
function update_table_from_array($table, $arr, $where, $binary_fields = []) {
if (! ($arr && $table)) {
return false;
}
$columns = db_columns($table);
$clean = [];
foreach ($arr as $k => $v) {
if (! in_array($k, $columns)) {
continue;
}
$matches = false;
if (preg_match('/([^a-zA-Z0-9\-\_\.])/', $k, $matches)) {
return false;
}
if (in_array($k, $binary_fields)) {
$clean[$k] = dbescbin($v);
} else {
$clean[$k] = dbesc($v);
}
}
$sql = "UPDATE " . TQUOT . $table . TQUOT . " SET ";
foreach ($clean as $k => $v) {
$sql .= TQUOT . $k . TQUOT . ' = "' . $v . '",';
}
$sql = rtrim($sql,',');
$r = dbq($sql . " WHERE " . $where);
return $r;
}
function share_shield($m) {
return str_replace($m[1],'!=+=+=!' . base64url_encode($m[1]) . '=+!=+!=',$m[0]);
}
function share_unshield($m) {
$x = str_replace(array('!=+=+=!','=+!=+!='),array('',''),$m[1]);
return str_replace($m[1], base64url_decode($x), $m[0]);
}
function cleanup_bbcode($body) {
/**
* fix naked links by passing through a callback to see if this is a hubzilla site
* (already known to us) which will get a zrl, otherwise link with url, add bookmark tag to both.
* First protect any url inside certain bbcode tags so we don't double link it.
*/
$body = preg_replace_callback('/\[code(.*?)\[\/(code)\]/ism','\red_escape_codeblock',$body);
$body = preg_replace_callback('/\[summary(.*?)\[\/(summary)\]/ism','\red_escape_codeblock',$body);
$body = preg_replace_callback('/\[url(.*?)\[\/(url)\]/ism','\red_escape_codeblock',$body);
$body = preg_replace_callback('/\[zrl(.*?)\[\/(zrl)\]/ism','\red_escape_codeblock',$body);
$body = preg_replace_callback('/\[svg(.*?)\[\/(svg)\]/ism','\red_escape_codeblock',$body);
$body = preg_replace_callback('/\[img(.*?)\[\/(img)\]/ism','\red_escape_codeblock',$body);
$body = preg_replace_callback('/\[zmg(.*?)\[\/(zmg)\]/ism','\red_escape_codeblock',$body);
$body = preg_replace_callback("/([^\]\='".'"'."\;\/\{]|^|\#\^)(https?\:\/\/[a-zA-Z0-9\pL\:\/\-\?\&\;\.\=\@\_\~\#\%\$\!\\
+\,\(\)]+)/ismu", '\nakedoembed', $body);
$body = preg_replace_callback("/([^\]\='".'"'."\;\/\{]|^|\#\^)(https?\:\/\/[a-zA-Z0-9\pL\:\/\-\?\&\;\.\=\@\_\~\#\%\$\!\\
+\,\(\)]+)/ismu", '\red_zrl_callback', $body);
$body = preg_replace_callback('/\[\$b64code(.*?)\[\/(code)\]/ism','\red_unescape_codeblock',$body);
$body = preg_replace_callback('/\[\$b64summary(.*?)\[\/(summary)\]/ism','\red_unescape_codeblock',$body);
$body = preg_replace_callback('/\[\$b64url(.*?)\[\/(url)\]/ism','\red_unescape_codeblock',$body);
$body = preg_replace_callback('/\[\$b64zrl(.*?)\[\/(zrl)\]/ism','\red_unescape_codeblock',$body);
$body = preg_replace_callback('/\[\$b64svg(.*?)\[\/(svg)\]/ism','\red_unescape_codeblock',$body);
$body = preg_replace_callback('/\[\$b64img(.*?)\[\/(img)\]/ism','\red_unescape_codeblock',$body);
$body = preg_replace_callback('/\[\$b64zmg(.*?)\[\/(zmg)\]/ism','\red_unescape_codeblock',$body);
// fix any img tags that should be zmg
$body = preg_replace_callback('/\[img(.*?)\](.*?)\[\/img\]/ism','\red_zrlify_img_callback',$body);
$body = bb_translate_video($body);
/**
* Fold multi-line [code] sequences
*/
$body = preg_replace('/\[\/code\]\s*\[code\]/ism',"\n",$body);
return $body;
}
function gen_link_id($mid) {
if(strpbrk($mid,':/&?<>"\'') !== false)
return 'b64.' . base64url_encode($mid);
return $mid;
}
/**
* @brief check if the provided string starts with 'b64.' and try to decode it if so.
* If it could be decoded return the decoded string or false if decoding failed.
* If the string does not start with 'b64.', return the string as is.
*
* @param string $mid
* @return string|boolean false
*/
function unpack_link_id($mid) {
if (is_string($mid) && strpos($mid, 'b64.') === 0) {
$mid = @base64url_decode(substr($mid, 4), true);
return $mid;
}
return $mid;
}
// callback for array_walk
function array_trim(&$v,$k) {
$v = trim($v);
}
function array_escape_tags(&$v,$k) {
$v = escape_tags($v);
}
function ellipsify($s,$maxlen) {
if($maxlen & 1)
$maxlen --;
if($maxlen < 4)
$maxlen = 4;
if(mb_strlen($s) < $maxlen)
return $s;
return mb_substr($s,0,$maxlen / 2) . '...' . mb_substr($s,mb_strlen($s) - ($maxlen / 2));
}
function purify_filename($s) {
if(($s[0] === '.') || strpos($s,'/') !== false)
return '';
return $s;
}
// callback for sorting the settings/featured entries.
function featured_sort($a,$b) {
$s1 = substr($a,strpos($a,'id='),20);
$s2 = substr($b,strpos($b,'id='),20);
return(strcmp($s1,$s2));
}
// Be aware that punify will convert domain names and pathnames
function punify($s) {
require_once('vendor/simplepie/simplepie/idn/idna_convert.class.php');
$x = new idna_convert(['encoding' => 'utf8']);
return $x->encode($s);
}
/**
* Be aware that unpunify() will only convert domain names and not pathnames.
*
* @param string $s
* @return string
*/
function unpunify($s) {
require_once('vendor/simplepie/simplepie/idn/idna_convert.class.php');
$x = new idna_convert(['encoding' => 'utf8']);
return $x->decode($s);
}
function unique_multidim_array($array, $key) {
$temp_array = array();
$i = 0;
$key_array = array();
foreach($array as $val) {
if (!in_array($val[$key], $key_array)) {
$key_array[$i] = $val[$key];
$temp_array[$i] = $val;
}
$i++;
}
return $temp_array;
}
function get_forum_channels($uid) {
if(! $uid)
return;
$r = q("select abook_id, xchan_pubforum, xchan_hash, xchan_network, xchan_name, xchan_url, xchan_photo_s from abook left join xchan on abook_xchan = xchan_hash where xchan_deleted = 0 and abook_channel = %d and abook_pending = 0 and abook_ignored = 0 and abook_blocked = 0 and abook_archived = 0 and abook_self = 0 and xchan_pubforum = 1 order by xchan_name",
intval($uid)
);
/*
if(isset(App::$data['forum_channels']))
return App::$data['forum_channels'];
$xf = '';
$x1 = q("select xchan from abconfig where chan = %d and cat = 'their_perms' and k = 'send_stream' and v = '0'",
intval($uid)
);
if($x1) {
$x2 = [];
$x3 = [];
$x4 = [];
$xc = ids_to_querystr($x1,'xchan',true);
$x2 = q("select xchan from abconfig where chan = %d and cat = 'their_perms' and k = 'tag_deliver' and v = '1' and xchan in (" . protect_sprintf($xc) . ") ",
intval($uid)
);
$xf = ids_to_querystr($x2,'xchan',true);
$sql_extra = (($xf) ? ' and not xchan in (' . $xf . ')' : '');
// private forums
$x3 = q("select xchan from abconfig where chan = %d and cat = 'their_perms' and k = 'post_wall' and v = '1' and xchan in (" . protect_sprintf($xc) . ") $sql_extra ",
intval(local_channel())
);
if($x3) {
$xf = ids_to_querystr(array_merge($x2,$x3),'xchan',true);
}
// public forums with no permission to post
$x4 = q("select xchan from abconfig left join xchan on xchan = xchan_hash where chan = %d and cat = 'their_perms' and k in ('post_wall', 'tag_deliver') and v = '0' and xchan in (" . protect_sprintf($xc) . ") and xchan_pubforum = 1 $sql_extra ",
intval(local_channel())
);
if($x4) {
$xf = ids_to_querystr(array_merge($x2,$x3,$x4),'xchan',true);
}
}
$sql_extra_1 = (($xf) ? " and ( xchan_hash in (" . protect_sprintf($xf) . ") or xchan_pubforum = 1 ) " : " and xchan_pubforum = 1 ");
$r = q("select abook_id, xchan_hash, xchan_name, xchan_url, xchan_addr, xchan_photo_s from abook left join xchan on abook_xchan = xchan_hash where xchan_deleted = 0 and abook_channel = %d and abook_pending = 0 and abook_ignored = 0 and abook_blocked = 0 and abook_archived = 0 $sql_extra_1 order by xchan_name",
intval($uid)
);
if(!$r)
$r = [];
for($x = 0; $x < count($r); $x ++) {
if($x3) {
foreach($x3 as $xx) {
if($r[$x]['xchan_hash'] == $xx['xchan']) {
$r[$x]['private_forum'] = 1;
}
}
}
if($x4) {
foreach($x4 as $xx) {
if($r[$x]['xchan_hash'] == $xx['xchan']) {
$r[$x]['no_post_perms'] = 1;
}
}
}
}
App::$data['forum_channels'] = $r;
*/
return $r;
}
function print_array($arr, $level = 0) {
$o = EMPTY_STR;
$tabs = EMPTY_STR;
if(is_array($arr)) {
for($x = 0; $x <= $level; $x ++) {
$tabs .= "\t";
}
$o .= '[' . "\n";
if(count($arr)) {
foreach($arr as $k => $v) {
if(is_array($v)) {
$o .= $tabs . '[' . $k . '] => ' . print_array($v, $level + 1) . "\n";
}
else {
$o .= $tabs . '[' . $k . '] => ' . print_val($v) . ",\n";
}
}
}
$o .= substr($tabs,0,-1) . ']' . (($level) ? ',' : ';' ). "\n";
return $o;
}
}
function print_val($v) {
if(is_bool($v)) {
if($v) return 'true';
return 'false';
}
if(is_string($v)) {
return "'" . $v . "'";
}
return $v;
}
function array_path_exists($str,$arr) {
$ptr = $arr;
$search = explode('/', $str);
if($search) {
foreach($search as $s) {
if ($ptr && is_array($ptr) && array_key_exists($s,$ptr)) {
$ptr = $ptr[$s];
}
else {
return false;
}
}
return true;
}
return false;
}
/**
* @brief provide psuedo random token (string) consisting entirely of US-ASCII letters/numbers
* and with possibly variable length
*
* @return string
*/
function new_token($minlen = 36, $maxlen = 48) {
$chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890';
$str = EMPTY_STR;
$len = (($minlen === $maxlen) ? $minlen : mt_rand($minlen, $maxlen));
for ($a = 0; $a < $len; $a++) {
$str .= $chars[mt_rand(0, 62)];
}
return $str;
}
/**
* @brief Generate a random v4 UUID.
*
* @return string
*/
function new_uuid() {
try {
$hash = Uuid::uuid4()->toString();
} catch (UnableToBuildUuidException $e) {
$hash = random_string(48);
}
return $hash;
}
/**
* @brief Generate a name-based v5 UUID in the URL namespace
*
* @param string $url
* @return string
*/
function uuid_from_url($url) {
try {
$hash = Uuid::uuid5(Uuid::NAMESPACE_URL, $url)->toString();
} catch (UnableToBuildUuidException $e) {
$hash = md5($url);
}
return $hash;
}
function svg2bb($s) {
$s = preg_replace("/\(.*?)\<(.*?)\<\/text\>/", '$2<$3 ', $s);
$s = preg_replace("/\(.*?)\>(.*?)\<\/text\>/", '$2>$3 ', $s);
$s = preg_replace("/\(.*?)\[(.*?)\<\/text\>/", '$2[$3 ', $s);
$s = preg_replace("/\(.*?)\](.*?)\<\/text\>/", '$2]$3 ', $s);
$s = utf8_encode($s);
$purify = new SvgSanitizer();
if ($purify->loadXML($s)) {
$purify->sanitize();
$output = $purify->saveSVG();
$output = preg_replace("/\<\?xml(.*?)\>/",'',$output);
$output = preg_replace("/\<\!\-\-(.*?)\-\-\>/",'',$output);
$output = str_replace(['<','>'],['[',']'],$output);
return $output;
}
return EMPTY_STR;
}
function serialise($x) {
return ((is_array($x)) ? 'json:' . json_encode($x) : $x);
}
function unserialise($x) {
if (is_array($x)) {
return $x;
}
$y = ((substr($x,0,5) === 'json:') ? json_decode(substr($x,5),true) : '');
return ((is_array($y)) ? $y : $x);
}
function obscurify($s) {
return str_rot47(base64url_encode($s));
}
function unobscurify($s) {
return base64url_decode(str_rot47($s));
}
/**
* @brief Remove new lines and tabs from strings.
*
* @return string
*/
function sanitize_text_field($str) {
return preg_replace('/\s+/S', ' ', $str);
}
/**
* @brief shortens a string to $max_length without cutting off words
* @param string $str
* @param intval $max_length
* @param string $suffix (optional)
* @return string
*/
function substr_words($str, $max_length, $suffix = '...') {
if (strlen($str) > $max_length) {
$words = preg_split('/\s/', $str);
$ret = '';
$i = 0;
while (true) {
$length = (strlen($ret) + strlen($words[$i]));
if ($length > $max_length) {
break;
}
$ret .= " " . $words[$i];
++$i;
}
$ret .= $suffix;
}
return (($ret) ? $ret : $str);
}