<?php /** @file */
require_once('include/bbcode.php');
require_once('include/oembed.php');
require_once('include/crypto.php');
require_once('include/photo/photo_driver.php');
require_once('include/permissions.php');
function collect_recipients($item,&$private_envelope) {
require_once('include/group.php');
$private_envelope = ((intval($item['item_private'])) ? true : false);
$recipients = array();
if($item['allow_cid'] || $item['allow_gid'] || $item['deny_cid'] || $item['deny_gid']) {
// it is private
$allow_people = expand_acl($item['allow_cid']);
$allow_groups = expand_groups(expand_acl($item['allow_gid']));
$allow_groups = filter_insecure($item['uid'],$allow_groups);
$recipients = array_unique(array_merge($allow_people,$allow_groups));
// if you specifically deny somebody but haven't allowed anybody, we'll allow everybody in your
// address book minus the denied connections. The post is still private and can't be seen publicly
// as that would allow the denied person to see the post by logging out.
if((! $item['allow_cid']) && (! $item['allow_gid'])) {
$r = q("select * from abook where abook_channel = %d and not (abook_flags & %d) ",
intval($item['uid']),
intval(ABOOK_FLAG_SELF|ABOOK_FLAG_PENDING|ABOOK_FLAG_ARCHIVED)
);
if($r) {
foreach($r as $rr) {
$recipients[] = $rr['abook_xchan'];
}
}
}
$deny_people = expand_acl($item['deny_cid']);
$deny_groups = expand_groups(expand_acl($item['deny_gid']));
$deny = array_unique(array_merge($deny_people,$deny_groups));
// Don't deny anybody if nobody was allowed (e.g. they were all filtered out)
// That would lead to array_diff doing the wrong thing.
// This will result in a private post that won't be delivered to anybody.
if($recipients && $deny)
$recipients = array_diff($recipients,$deny);
$private_envelope = true;
}
else {
// if the post is marked private but there are no recipients and public_policy/scope = self,
// only add the author and owner as recipients. The ACL for the post may live on the hub of
// a different clone. We need to get the post to that hub.
// The post may be private by virtue of not being visible to anybody on the internet,
// but there are no envelope recipients, so set this to false. Delivery is controlled
// by the directives in $item['public_policy'].
$private_envelope = false;
if(array_key_exists('public_policy',$item) && $item['public_policy'] !== 'self') {
$r = q("select abook_xchan, xchan_network from abook left join xchan on abook_xchan = xchan_hash where abook_channel = %d and not (abook_flags & %d) ",
intval($item['uid']),
intval(ABOOK_FLAG_SELF|ABOOK_FLAG_PENDING|ABOOK_FLAG_ARCHIVED)
);
if($r) {
// filter out restrictive public_policy settings from remote networks
// which don't have this concept and will treat them as public.
$policy = substr($item['public_policy'],0,3);
foreach($r as $rr) {
switch($policy) {
case 'net':
case 'aut':
case 'sit':
case 'any':
case 'con':
if($rr['xchan_network'] != 'zot')
break;
case 'pub':
case '':
default:
$recipients[] = $rr['abook_xchan'];
break;
}
}
}
}
}
// This is a somewhat expensive operation but important.
// Don't send this item to anybody who isn't allowed to see it
$recipients = check_list_permissions($item['uid'],$recipients,'view_stream');
// remove any upstream recipients from our list.
// If it is ourself we'll add it back in a second.
// This should prevent complex delivery chains from getting overly complex by not
// sending to anybody who is on our list of those who sent it to us.
if($item['route']) {
$route = explode(',',$item['route']);
if(count($route)) {
$route = array_unique($route);
$recipients = array_diff($recipients,$route);
}
}
// add ourself just in case we have nomadic clones that need to get a copy.
$recipients[] = $item['author_xchan'];
if($item['owner_xchan'] != $item['author_xchan'])
$recipients[] = $item['owner_xchan'];
return $recipients;
}
/**
* If channel is configured to filter insecure members of privacy groups
* (those whose networks leak privacy via email notifications or other criteria)
* remove them from any privacy groups (collections) that were included in a post.
* They can still be addressed individually.
* Networks may need to be added or removed from this list as circumstances change.
*
* Update: this may need to be the default, which will force people to opt-in to sending stuff
* privately to insecure platforms.
*/
function filter_insecure($channel_id,$arr) {
$insecure_nets = " and not xchan_network in ('diaspora', 'friendica-over-diaspora') ";
$ret = array();
if((! intval(get_config($channel_id,'system','filter_insecure_collections'))) || (! $arr))
return $arr;
$str = '';
foreach($arr as $rr) {
if(strlen($str))
$str .= ',';
$str .= "'" . dbesc($rr) . "'";
}
$r = q("select xchan_hash from xchan where xchan_hash in ($str) $insecure_nets ");
if($r) {
foreach($r as $rr) {
$ret[] = $rr['xchan_hash'];
}
}
return $ret;
}
function comments_are_now_closed($item) {
if($item['comments_closed'] !== NULL_DATE) {
$d = datetime_convert();
if($d > $item['comments_closed'])
return true;
}
return false;
}
/**
* @function can_comment_on_post($observer_xchan,$item);
*
* This function examines the comment_policy attached to an item and decides if the current observer has
* sufficient privileges to comment. This will normally be called on a remote site where perm_is_allowed()
* will not be suitable because the post owner does not have a local channel_id.
* Generally we should look at the item - in particular the author['book_flags'] and see if ABOOK_FLAG_SELF is set.
* If it is, you should be able to use perm_is_allowed( ... 'post_comments'), and if it isn't you need to call
* can_comment_on_post()
* We also check the comments_closed date/time on the item if this is set.
*/
function can_comment_on_post($observer_xchan,$item) {
// logger('can_comment_on_post: comment_policy: ' . $item['comment_policy'], LOGGER_DEBUG);
if(! $observer_xchan)
return false;
if($item['comment_policy'] === 'none')
return false;
if(comments_are_now_closed($item))
return false;
if($observer_xchan === $item['author_xchan'] || $observer_xchan === $item['owner_xchan'])
return true;
switch($item['comment_policy']) {
case 'self':
if($observer_xchan === $item['author_xchan'] || $observer_xchan === $item['owner_xchan'])
return true;
break;
case 'public':
// We don't allow public comments yet, until a policy
// for dealing with anonymous comments is in place with
// a means to moderate comments. Until that time, return
// false.
return false;
break;
case 'any connections':
case 'contacts':
case '':
if(array_key_exists('owner',$item)) {
if(($item['owner']['abook_xchan']) && ($item['owner']['abook_their_perms'] & PERMS_W_COMMENT))
return true;
}
break;
default:
break;
}
if(strstr($item['comment_policy'],'network:') && strstr($item['comment_policy'],'red'))
return true;
if(strstr($item['comment_policy'],'site:') && strstr($item['comment_policy'],get_app()->get_hostname()))
return true;
return false;
}
/**
* @function add_source_route($iid,$hash)
* Adds $hash to the item source route specified by $iid
* @param integer $iid
* item['id'] of target item
* @param string $hash
* xchan_hash of the channel that sent the item
* Modifies item pointed to by $iid
*
* $item['route'] contains a comma-separated list of xchans that sent the current message,
* somewhat analogous to the * Received: header line in email. We can use this to perform
* loop detection and to avoid sending a particular item to any "upstream" sender (they
* already have a copy because they sent it to us).
*
*/
function add_source_route($iid,$hash) {
// logger('add_source_route ' . $iid . ' ' . $hash, LOGGER_DEBUG);
if((! $iid) || (! $hash))
return;
$r = q("select route from item where id = %d limit 1",
intval($iid)
);
if($r) {
$new_route = (($r[0]['route']) ? $r[0]['route'] . ',' : '') . $hash;
q("update item set route = '%s' where id = %d limit 1",
(dbesc($new_route)),
intval($iid)
);
}
}
/**
* @function red_zrl_callback
* preg_match function when fixing 'naked' links in mod item.php
* Check if we've got a hubloc for the site and use a zrl if we do, a url if we don't.
* Remove any existing zid= param which may have been pasted by mistake - and will have
* the author's credentials. zid's are dynamic and can't really be passed around like
* that.
*/
function red_zrl_callback($matches) {
require_once('include/hubloc.php');
$zrl = is_matrix_url($matches[2]);
$t = strip_zids($matches[2]);
if($t !== $matches[2]) {
$zrl = true;
$matches[2] = $t;
}
if($matches[1] === '#^')
$matches[1] = '';
if($zrl)
return $matches[1] . '#^[zrl=' . $matches[2] . ']' . $matches[2] . '[/zrl]';
return $matches[1] . '#^[url=' . $matches[2] . ']' . $matches[2] . '[/url]';
}
// If we've got a url or zrl tag with a naked url somewhere in the link text,
// escape it with quotes unless the naked url is a linked photo.
function red_escape_zrl_callback($matches) {
// Uncertain why the url/zrl forms weren't picked up by the non-greedy regex.
if((strpos($matches[3],'zmg') !== false) || (strpos($matches[3],'img') !== false) || (strpos($matches[3],'zrl') !== false) || (strpos($matches[3],'url') !== false))
return $matches[0];
return '[' . $matches[1] . 'rl' . $matches[2] . ']' . $matches[3] . '"' . $matches[4] . '"' . $matches[5] . '[/' . $matches[6] . 'rl]';
}
function red_escape_codeblock($m) {
return '[$b64' . $m[2] . base64_encode($m[1]) . '[/' . $m[2] . ']';
}
function red_unescape_codeblock($m) {
return '[' . $m[2] . base64_decode($m[1]) . '[/' . $m[2] . ']';
}
function red_zrlify_img_callback($matches) {
require_once('include/hubloc.php');
$zrl = is_matrix_url($matches[2]);
$t = strip_zids($matches[2]);
if($t !== $matches[2]) {
$zrl = true;
$matches[2] = $t;
}
if($zrl)
return '[zmg' . $matches[1] . ']' . $matches[2] . '[/zmg]';
return $matches[0];
}
/**
* @function post_activity_item($arr)
*
* post an activity
*
* @param array $arr
*
* In its simplest form one needs only to set $arr['body'] to post a note to the logged in channel's wall.
* Much more complex activities can be created. Permissions are checked. No filtering, tag expansion
* or other processing is performed.
*
* @returns array
* 'success' => true or false
* 'activity' => the resulting activity if successful
*/
function post_activity_item($arr) {
$ret = array('success' => false);
$is_comment = false;
if((($arr['parent']) && $arr['parent'] != $arr['id']) || (($arr['parent_mid']) && $arr['parent_mid'] != $arr['mid']))
$is_comment = true;
if(! x($arr,'item_flags')) {
if($is_comment)
$arr['item_flags'] = ITEM_ORIGIN;
else
$arr['item_flags'] = ITEM_ORIGIN | ITEM_WALL | ITEM_THREAD_TOP;
}
$channel = get_app()->get_channel();
$observer = get_app()->get_observer();
$arr['aid'] = ((x($arr,'aid')) ? $arr['aid'] : $channel['channel_account_id']);
$arr['uid'] = ((x($arr,'uid')) ? $arr['uid'] : $channel['channel_id']);
if(! perm_is_allowed($arr['uid'],$observer['xchan_hash'],(($is_comment) ? 'post_comments' : 'post_wall'))) {
$ret['message'] = t('Permission denied');
return $ret;
}
$arr['public_policy'] = ((x($_REQUEST,'public_policy')) ? escape_tags($_REQUEST['public_policy']) : map_scope($channel['channel_r_stream'],true));
if($arr['public_policy'])
$arr['item_private'] = 1;
if(! array_key_exists('mimetype',$arr))
$arr['mimetype'] = 'text/bbcode';
if(array_key_exists('item_private',$arr) && $arr['item_private']) {
$arr['body'] = z_input_filter($arr['uid'],$arr['body'],$arr['mimetype']);
if($channel) {
if($channel['channel_hash'] === $arr['author_xchan']) {
$arr['sig'] = base64url_encode(rsa_sign($arr['body'],$channel['channel_prvkey']));
$arr['item_flags'] = $arr['item_flags'] | ITEM_VERIFIED;
}
}
logger('Encrypting local storage');
$key = get_config('system','pubkey');
$arr['item_flags'] = $arr['item_flags'] | ITEM_OBSCURED;
if($arr['title'])
$arr['title'] = json_encode(crypto_encapsulate($arr['title'],$key));
if($arr['body'])
$arr['body'] = json_encode(crypto_encapsulate($arr['body'],$key));
}
$arr['mid'] = ((x($arr,'mid')) ? $arr['mid'] : item_message_id());
$arr['parent_mid'] = ((x($arr,'parent_mid')) ? $arr['parent_mid'] : $arr['mid']);
$arr['thr_parent'] = ((x($arr,'thr_parent')) ? $arr['thr_parent'] : $arr['mid']);
$arr['owner_xchan'] = ((x($arr,'owner_xchan')) ? $arr['owner_xchan'] : $channel['channel_hash']);
$arr['author_xchan'] = ((x($arr,'author_xchan')) ? $arr['author_xchan'] : $observer['xchan_hash']);
$arr['verb'] = ((x($arr,'verb')) ? $arr['verb'] : ACTIVITY_POST);
$arr['obj_type'] = ((x($arr,'obj_type')) ? $arr['obj_type'] : ACTIVITY_OBJ_NOTE);
$arr['allow_cid'] = ((x($arr,'allow_cid')) ? $arr['allow_cid'] : $channel['channel_allow_cid']);
$arr['allow_gid'] = ((x($arr,'allow_gid')) ? $arr['allow_gid'] : $channel['channel_allow_gid']);
$arr['deny_cid'] = ((x($arr,'deny_cid')) ? $arr['deny_cid'] : $channel['channel_deny_cid']);
$arr['deny_gid'] = ((x($arr,'deny_gid')) ? $arr['deny_gid'] : $channel['channel_deny_gid']);
$arr['comment_policy'] = map_scope($channel['channel_w_comment']);
if ((! $arr['plink']) && ($arr['item_flags'] & ITEM_THREAD_TOP)) {
$arr['plink'] = z_root() . '/channel/' . $channel['channel_address'] . '/?f=&mid=' . $arr['mid'];
}
// for the benefit of plugins, we will behave as if this is an API call rather than a normal online post
$_REQUEST['api_source'] = 1;
call_hooks('post_local',$arr);
if(x($arr,'cancel')) {
logger('post_activity_item: post cancelled by plugin.');
return $ret;
}
$post = item_store($arr);
if($post['success'])
$post_id = $post['item_id'];
if($post_id) {
$arr['id'] = $post_id;
call_hooks('post_local_end', $arr);
proc_run('php','include/notifier.php','activity',$post_id);
$ret['success'] = true;
$r = q("select * from item where id = %d limit 1",
intval($post_id)
);
if($r)
$ret['activity'] = $r[0];
}
return $ret;
}
/**
* @function get_public_feed($channel,$params)
* generate an Atom feed
*/
function get_public_feed($channel,$params) {
$type = 'xml';
$begin = NULL_DATE;
$end = '';
$start = 0;
$records = 40;
$direction = 'desc';
$pages = 0;
if(! $params)
$params = array();
$params['type'] = ((x($params,'type')) ? $params['type'] : 'xml');
$params['begin'] = ((x($params,'begin')) ? $params['begin'] : NULL_DATE);
$params['end'] = ((x($params,'end')) ? $params['end'] : datetime_convert('UTC','UTC','now'));
$params['start'] = ((x($params,'start')) ? $params['start'] : 0);
$params['records'] = ((x($params,'records')) ? $params['records'] : 40);
$params['direction'] = ((x($params,'direction')) ? $params['direction'] : 'desc');
$params['pages'] = ((x($params,'pages')) ? intval($params['pages']) : 0);
$params['top'] = ((x($params,'top')) ? intval($params['top']) : 0);
switch($params['type']) {
case 'json':
header("Content-type: application/atom+json");
break;
case 'xml':
default:
header("Content-type: application/atom+xml");
break;
}
return get_feed_for($channel,get_observer_hash(),$params);
}
function get_feed_for($channel, $observer_hash, $params) {
if(! channel)
http_status_exit(401);
if($params['pages']) {
if(! perm_is_allowed($channel['channel_id'],$observer_hash,'view_pages'))
http_status_exit(403);
}
else {
if(! perm_is_allowed($channel['channel_id'],$observer_hash,'view_stream'))
http_status_exit(403);
}
$items = items_fetch(array(
'wall' => '1',
'datequery' => $params['begin'],
'datequery2' => $params['end'],
'start' => $params['start'], // FIXME
'records' => $params['records'], // FIXME
'direction' => $params['direction'], // FIXME
'pages' => $params['pages'],
'order' => 'post',
'top' => $params['top']
), $channel, $observer_hash, CLIENT_MODE_NORMAL, get_app()->module);
$feed_template = get_markup_template('atom_feed.tpl');
$atom = '';
$atom .= replace_macros($feed_template, array(
'$version' => xmlify(RED_VERSION),
'$red' => xmlify(RED_PLATFORM),
'$feed_id' => xmlify($channel['xchan_url']),
'$feed_title' => xmlify($channel['channel_name']),
'$feed_updated' => xmlify(datetime_convert('UTC', 'UTC', 'now' , ATOM_TIME)) ,
'$hub' => '', // feed_hublinks(),
'$salmon' => '', // feed_salmonlinks($channel['channel_address']),
'$name' => xmlify($channel['channel_name']),
'$profile_page' => xmlify($channel['xchan_url']),
'$mimephoto' => xmlify($channel['xchan_photo_mimetype']),
'$photo' => xmlify($channel['xchan_photo_l']),
'$thumb' => xmlify($channel['xchan_photo_m']),
'$picdate' => '',
'$uridate' => '',
'$namdate' => '',
'$birthday' => '',
'$community' => '',
));
call_hooks('atom_feed', $atom);
if($items) {
$type = 'html';
foreach($items as $item) {
if($item['item_private'])
continue;
$atom .= atom_entry($item,$type,null,$owner,true);
}
}
call_hooks('atom_feed_end', $atom);
$atom .= '</feed>' . "\r\n";
return $atom;
}
function construct_verb($item) {
if($item['verb'])
return $item['verb'];
return ACTIVITY_POST;
}
function construct_activity_object($item) {
if($item['object']) {
$o = '<as:object>' . "\r\n";
$r = json_decode($item['object'],false);
if(! $r)
return '';
if($r->type)
$o .= '<as:obj_type>' . xmlify($r->type) . '</as:obj_type>' . "\r\n";
if($r->id)
$o .= '<id>' . xmlify($r->id) . '</id>' . "\r\n";
if($r->title)
$o .= '<title>' . xmlify($r->title) . '</title>' . "\r\n";
if($r->links) {
// FIXME!!
if(substr($r->link,0,1) === '<') {
$r->link = preg_replace('/\<link(.*?)\"\>/','<link$1"/>',$r->link);
$o .= $r->link;
}
else
$o .= '<link rel="alternate" type="text/html" href="' . xmlify($r->link) . '" />' . "\r\n";
}
if($r->content)
$o .= '<content type="html" >' . xmlify(bbcode($r->content)) . '</content>' . "\r\n";
$o .= '</as:object>' . "\r\n";
return $o;
}
return '';
}
function construct_activity_target($item) {
if($item['target']) {
$o = '<as:target>' . "\r\n";
$r = json_decode($item['target'],false);
if(! $r)
return '';
if($r->type)
$o .= '<as:obj_type>' . xmlify($r->type) . '</as:obj_type>' . "\r\n";
if($r->id)
$o .= '<id>' . xmlify($r->id) . '</id>' . "\r\n";
if($r->title)
$o .= '<title>' . xmlify($r->title) . '</title>' . "\r\n";
if($r->links) {
// FIXME !!!
if(substr($r->link,0,1) === '<') {
if(strstr($r->link,'&') && (! strstr($r->link,'&')))
$r->link = str_replace('&','&', $r->link);
$r->link = preg_replace('/\<link(.*?)\"\>/','<link$1"/>',$r->link);
$o .= $r->link;
}
else
$o .= '<link rel="alternate" type="text/html" href="' . xmlify($r->link) . '" />' . "\r\n";
}
if($r->content)
$o .= '<content type="html" >' . xmlify(bbcode($r->content)) . '</content>' . "\r\n";
$o .= '</as:target>' . "\r\n";
return $o;
}
return '';
}
/* limit_body_size()
*
* The purpose of this function is to apply system message length limits to
* imported messages without including any embedded photos in the length
*/
function limit_body_size($body) {
$maxlen = get_max_import_size();
// If the length of the body, including the embedded images, is smaller
// than the maximum, then don't waste time looking for the images
if($maxlen && (strlen($body) > $maxlen)) {
$orig_body = $body;
$new_body = '';
$textlen = 0;
$max_found = false;
$img_start = strpos($orig_body, '[img');
$img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
$img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
while(($img_st_close !== false) && ($img_end !== false)) {
$img_st_close++; // make it point to AFTER the closing bracket
$img_end += $img_start;
$img_end += strlen('[/img]');
if(! strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) {
// This is an embedded image
if( ($textlen + $img_start) > $maxlen ) {
if($textlen < $maxlen) {
logger('limit_body_size: the limit happens before an embedded image', LOGGER_DEBUG);
$new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
$textlen = $maxlen;
}
}
else {
$new_body = $new_body . substr($orig_body, 0, $img_start);
$textlen += $img_start;
}
$new_body = $new_body . substr($orig_body, $img_start, $img_end - $img_start);
}
else {
if( ($textlen + $img_end) > $maxlen ) {
if($textlen < $maxlen) {
$new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
$textlen = $maxlen;
}
}
else {
$new_body = $new_body . substr($orig_body, 0, $img_end);
$textlen += $img_end;
}
}
$orig_body = substr($orig_body, $img_end);
if($orig_body === false) // in case the body ends on a closing image tag
$orig_body = '';
$img_start = strpos($orig_body, '[img');
$img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
$img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
}
if( ($textlen + strlen($orig_body)) > $maxlen) {
if($textlen < $maxlen) {
$new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
$textlen = $maxlen;
}
}
else {
$new_body = $new_body . $orig_body;
$textlen += strlen($orig_body);
}
return $new_body;
}
else
return $body;
}
function title_is_body($title, $body) {
$title = strip_tags($title);
$title = trim($title);
$title = str_replace(array("\n", "\r", "\t", " "), array("","","",""), $title);
$body = strip_tags($body);
$body = trim($body);
$body = str_replace(array("\n", "\r", "\t", " "), array("","","",""), $body);
if (strlen($title) < strlen($body))
$body = substr($body, 0, strlen($title));
if (($title != $body) and (substr($title, -3) == "...")) {
$pos = strrpos($title, "...");
if ($pos > 0) {
$title = substr($title, 0, $pos);
$body = substr($body, 0, $pos);
}
}
return($title == $body);
}
function get_item_elements($x) {
$arr = array();
$arr['body'] = (($x['body']) ? htmlspecialchars($x['body'],ENT_COMPAT,'UTF-8',false) : '');
$maxlen = get_max_import_size();
if($maxlen && mb_strlen($arr['body']) > $maxlen) {
$arr['body'] = mb_substr($arr['body'],0,$maxlen,'UTF-8');
logger('get_item_elements: message length exceeds max_import_size: truncated');
}
$arr['created'] = datetime_convert('UTC','UTC',$x['created']);
$arr['edited'] = datetime_convert('UTC','UTC',$x['edited']);
if($arr['created'] > datetime_convert())
$arr['created'] = datetime_convert();
if($arr['edited'] > datetime_convert())
$arr['edited'] = datetime_convert();
$arr['expires'] = ((x($x,'expires') && $x['expires'])
? datetime_convert('UTC','UTC',$x['expires'])
: NULL_DATE);
$arr['commented'] = ((x($x,'commented') && $x['commented'])
? datetime_convert('UTC','UTC',$x['commented'])
: $arr['created']);
$arr['comments_closed'] = ((x($x,'comments_closed') && $x['comments_closed'])
? datetime_convert('UTC','UTC',$x['comments_closed'])
: NULL_DATE);
$arr['title'] = (($x['title']) ? htmlspecialchars($x['title'], ENT_COMPAT,'UTF-8',false) : '');
if(mb_strlen($arr['title']) > 255)
$arr['title'] = mb_substr($arr['title'],0,255);
$arr['app'] = (($x['app']) ? htmlspecialchars($x['app'], ENT_COMPAT,'UTF-8',false) : '');
$arr['route'] = (($x['route']) ? htmlspecialchars($x['route'], ENT_COMPAT,'UTF-8',false) : '');
$arr['mid'] = (($x['message_id']) ? htmlspecialchars($x['message_id'], ENT_COMPAT,'UTF-8',false) : '');
$arr['parent_mid'] = (($x['message_top']) ? htmlspecialchars($x['message_top'], ENT_COMPAT,'UTF-8',false) : '');
$arr['thr_parent'] = (($x['message_parent']) ? htmlspecialchars($x['message_parent'], ENT_COMPAT,'UTF-8',false) : '');
$arr['plink'] = (($x['permalink']) ? htmlspecialchars($x['permalink'], ENT_COMPAT,'UTF-8',false) : '');
$arr['location'] = (($x['location']) ? htmlspecialchars($x['location'], ENT_COMPAT,'UTF-8',false) : '');
$arr['coord'] = (($x['longlat']) ? htmlspecialchars($x['longlat'], ENT_COMPAT,'UTF-8',false) : '');
$arr['verb'] = (($x['verb']) ? htmlspecialchars($x['verb'], ENT_COMPAT,'UTF-8',false) : '');
$arr['mimetype'] = (($x['mimetype']) ? htmlspecialchars($x['mimetype'], ENT_COMPAT,'UTF-8',false) : '');
$arr['obj_type'] = (($x['object_type']) ? htmlspecialchars($x['object_type'], ENT_COMPAT,'UTF-8',false) : '');
$arr['tgt_type'] = (($x['target_type']) ? htmlspecialchars($x['target_type'], ENT_COMPAT,'UTF-8',false) : '');
$arr['public_policy'] = (($x['public_scope']) ? htmlspecialchars($x['public_scope'], ENT_COMPAT,'UTF-8',false) : '');
if($arr['public_policy'] === 'public')
$arr['public_policy'] = '';
$arr['comment_policy'] = (($x['comment_scope']) ? htmlspecialchars($x['comment_scope'], ENT_COMPAT,'UTF-8',false) : 'contacts');
$arr['sig'] = (($x['signature']) ? htmlspecialchars($x['signature'], ENT_COMPAT,'UTF-8',false) : '');
$arr['diaspora_meta'] = (($x['diaspora_meta']) ? $x['diaspora_meta'] : '');
$arr['object'] = activity_sanitise($x['object']);
$arr['target'] = activity_sanitise($x['target']);
$arr['attach'] = activity_sanitise($x['attach']);
$arr['term'] = decode_tags($x['tags']);
$arr['item_private'] = ((array_key_exists('flags',$x) && is_array($x['flags']) && in_array('private',$x['flags'])) ? 1 : 0);
$arr['item_flags'] = 0;
if(array_key_exists('flags',$x) && in_array('deleted',$x['flags']))
$arr['item_restrict'] = ITEM_DELETED;
// Here's the deal - the site might be down or whatever but if there's a new person you've never
// seen before sending stuff to your stream, we MUST be able to look them up and import their data from their
// hub and verify that they are legit - or else we're going to toss the post. We only need to do this
// once, and after that your hub knows them. Sure some info is in the post, but it's only a transit identifier
// and not enough info to be able to look you up from your hash - which is the only thing stored with the post.
if(($xchan_hash = import_author_xchan($x['author'])) !== false)
$arr['author_xchan'] = $xchan_hash;
else
return array();
// save a potentially expensive lookup if author == owner
if($arr['author_xchan'] === make_xchan_hash($x['owner']['guid'],$x['owner']['guid_sig']))
$arr['owner_xchan'] = $arr['author_xchan'];
else {
if(($xchan_hash = import_author_xchan($x['owner'])) !== false)
$arr['owner_xchan'] = $xchan_hash;
else
return array();
}
if($arr['sig']) {
$r = q("select xchan_pubkey from xchan where xchan_hash = '%s' limit 1",
dbesc($arr['author_xchan'])
);
if($r && rsa_verify($x['body'],base64url_decode($arr['sig']),$r[0]['xchan_pubkey']))
$arr['item_flags'] |= ITEM_VERIFIED;
else
logger('get_item_elements: message verification failed.');
}
// if it's a private post, encrypt it in the DB.
// We have to do that here because we need to cleanse the input and prevent bad stuff from getting in,
// and we need plaintext to do that.
if(intval($arr['item_private'])) {
$arr['item_flags'] = $arr['item_flags'] | ITEM_OBSCURED;
$key = get_config('system','pubkey');
if($arr['title'])
$arr['title'] = json_encode(crypto_encapsulate($arr['title'],$key));
if($arr['body'])
$arr['body'] = json_encode(crypto_encapsulate($arr['body'],$key));
}
return $arr;
}
function import_author_xchan($x) {
$arr = array('xchan' => $x, 'xchan_hash' => '');
call_hooks('import_author_xchan',$arr);
if($arr['xchan_hash'])
return $arr['xchan_hash'];
if((! array_key_exists('network', $x)) || ($x['network'] === 'zot')) {
$y = import_author_zot($x);
}
if(! $y)
$y = import_author_diaspora($x);
if($x['network'] === 'rss') {
$y = import_author_rss($x);
}
if($x['network'] === 'unknown') {
$y = import_author_unknown($x);
}
return(($y) ? $y : false);
}
function import_author_diaspora($x) {
if(! $x['address'])
return false;
if(discover_by_webbie($x['address'])) {
$r = q("select xchan_hash from xchan where xchan_addr = '%s' limit 1",
dbesc($x['address'])
);
if($r)
return $r[0]['xchan_hash'];
}
return false;
}
function import_author_rss($x) {
if(! $x['url'])
return false;
$r = q("select xchan_hash from xchan where xchan_network = 'rss' and xchan_url = '%s' limit 1",
dbesc($x['url'])
);
if($r) {
logger('import_author_rss: in cache' , LOGGER_DEBUG);
return $r[0]['xchan_hash'];
}
$name = trim($x['name']);
$r = q("insert into xchan ( xchan_hash, xchan_guid, xchan_url, xchan_name, xchan_network )
values ( '%s', '%s', '%s', '%s', '%s' )",
dbesc($x['guid']),
dbesc($x['guid']),
dbesc($x['url']),
dbesc(($name) ? $name : t('(Unknown)')),
dbesc('rss')
);
if($r && $x['photo']) {
$photos = import_profile_photo($x['photo']['src'],$x['url']);
if($photos) {
$r = q("update xchan set xchan_photo_date = '%s', xchan_photo_l = '%s', xchan_photo_m = '%s', xchan_photo_s = '%s', xchan_photo_mimetype = '%s' where xchan_url = '%s' and xchan_network = 'rss' limit 1",
dbesc(datetime_convert('UTC','UTC',$arr['photo_updated'])),
dbesc($photos[0]),
dbesc($photos[1]),
dbesc($photos[2]),
dbesc($photos[3]),
dbesc($x['url'])
);
if($r)
return $x['url'];
}
}
return false;
}
function import_author_unknown($x) {
if(! $x['url'])
return false;
$r = q("select xchan_hash from xchan where xchan_network = 'unknown' and xchan_url = '%s' limit 1",
dbesc($x['url'])
);
if($r) {
logger('import_author_unknown: in cache' , LOGGER_DEBUG);
return $r[0]['xchan_hash'];
}
$name = trim($x['name']);
$r = q("insert into xchan ( xchan_hash, xchan_guid, xchan_url, xchan_name, xchan_network )
values ( '%s', '%s', '%s', '%s', '%s' )",
dbesc($x['url']),
dbesc($x['url']),
dbesc($x['url']),
dbesc(($name) ? $name : t('(Unknown)')),
dbesc('unknown')
);
if($r && $x['photo']) {
$photos = import_profile_photo($x['photo']['src'],$x['url']);
if($photos) {
$r = q("update xchan set xchan_photo_date = '%s', xchan_photo_l = '%s', xchan_photo_m = '%s', xchan_photo_s = '%s', xchan_photo_mimetype = '%s' where xchan_url = '%s' and xchan_network = 'unknown' limit 1",
dbesc(datetime_convert('UTC','UTC',$arr['photo_updated'])),
dbesc($photos[0]),
dbesc($photos[1]),
dbesc($photos[2]),
dbesc($photos[3]),
dbesc($x['url'])
);
if($r)
return $x['url'];
}
}
return false;
}
function encode_item($item,$mirror = false) {
$x = array();
$x['type'] = 'activity';
$x['encoding'] = 'zot';
// logger('encode_item: ' . print_r($item,true));
$r = q("select channel_r_stream, channel_w_comment from channel where channel_id = %d limit 1",
intval($item['uid'])
);
if($r)
$comment_scope = $r[0]['channel_w_comment'];
else
$comment_scope = 0;
$scope = $item['public_policy'];
if(! $scope)
$scope = 'public';
$c_scope = map_scope($comment_scope);
$key = get_config('system','prvkey');
if(array_key_exists('item_flags',$item) && ($item['item_flags'] & ITEM_OBSCURED)) {
if($item['title'])
$item['title'] = crypto_unencapsulate(json_decode_plus($item['title']),$key);
if($item['body'])
$item['body'] = crypto_unencapsulate(json_decode_plus($item['body']),$key);
}
// If we're trying to backup an item so that it's recoverable or for export/imprt,
// add all the attributes we need to recover it
if($mirror) {
$x['id'] = $item['id'];
$x['parent'] = $item['parent'];
$x['uid'] = $item['uid'];
$x['allow_cid'] = $item['allow_cid'];
$x['allow_gid'] = $item['allow_gid'];
$x['deny_cid'] = $item['deny_cid'];
$x['deny_gid'] = $item['deny_gid'];
$x['revision'] = $item['revision'];
$x['layout_mid'] = $item['layout_mid'];
$x['postopts'] = $item['postopts'];
$x['resource_id'] = $item['resource_id'];
$x['resource_type'] = $item['resource_type'];
$x['item_restrict'] = $item['item_restrict'];
$x['item_flags'] = $item['item_flags'];
$x['diaspora_meta'] = crypto_unencapsulate(json_decode($item['diaspora_meta'],true),$key);
$x['attach'] = $item['attach'];
}
$x['message_id'] = $item['mid'];
$x['message_top'] = $item['parent_mid'];
$x['message_parent'] = $item['thr_parent'];
$x['created'] = $item['created'];
$x['edited'] = $item['edited'];
$x['expires'] = $item['expires'];
$x['commented'] = $item['commented'];
$x['mimetype'] = $item['mimetype'];
$x['title'] = $item['title'];
$x['body'] = $item['body'];
$x['app'] = $item['app'];
$x['verb'] = $item['verb'];
$x['object_type'] = $item['obj_type'];
$x['target_type'] = $item['tgt_type'];
$x['permalink'] = $item['plink'];
$x['location'] = $item['location'];
$x['longlat'] = $item['coord'];
$x['signature'] = $item['sig'];
$x['route'] = $item['route'];
$x['owner'] = encode_item_xchan($item['owner']);
$x['author'] = encode_item_xchan($item['author']);
if($item['object'])
$x['object'] = json_decode_plus($item['object']);
if($item['target'])
$x['target'] = json_decode_plus($item['target']);
if($item['attach'])
$x['attach'] = json_decode_plus($item['attach']);
if($y = encode_item_flags($item))
$x['flags'] = $y;
if($item['comments_closed'] !== NULL_DATE)
$x['comments_closed'] = $item['comments_closed'];
$x['public_scope'] = $scope;
if($item['item_flags'] & ITEM_NOCOMMENT)
$x['comment_scope'] = 'none';
else
$x['comment_scope'] = $c_scope;
if($item['term'])
$x['tags'] = encode_item_terms($item['term']);
logger('encode_item: ' . print_r($x,true), LOGGER_DATA);
return $x;
}
function map_scope($scope,$strip = false) {
switch($scope) {
case 0:
return 'self';
case PERMS_PUBLIC:
if($strip)
return '';
return 'public';
case PERMS_NETWORK:
return 'network: red';
case PERMS_AUTHED:
return 'authenticated';
case PERMS_SITE:
return 'site: ' . get_app()->get_hostname();
case PERMS_PENDING:
return 'any connections';
case PERMS_CONTACTS:
default:
return 'contacts';
}
}
function translate_scope($scope) {
if(! $scope || $scope === 'public')
return t('Visible to anybody on the internet.');
if(strpos($scope,'self') === 0)
return t('Visible to you only.');
if(strpos($scope,'network:') === 0)
return t('Visible to anybody in this network.');
if(strpos($scope,'authenticated') === 0)
return t('Visible to anybody authenticated.');
if(strpos($scope,'site:') === 0)
return sprintf( t('Visible to anybody on %s.'), strip_tags(substr($scope,6)));
if(strpos($scope,'any connections') === 0)
return t('Visible to all connections.');
if(strpos($scope,'contacts') === 0)
return t('Visible to approved connections.');
if(strpos($scope,'specific') === 0)
return t('Visible to specific connections.');
}
function encode_item_xchan($xchan) {
$ret = array();
$ret['name'] = $xchan['xchan_name'];
$ret['address'] = $xchan['xchan_addr'];
$ret['url'] = (($xchan['hubloc_url']) ? $xchan['hubloc_url'] : $xchan['xchan_url']);
$ret['network'] = $xchan['xchan_network'];
$ret['photo'] = array('mimetype' => $xchan['xchan_photo_mimetype'], 'src' => $xchan['xchan_photo_m']);
$ret['guid'] = $xchan['xchan_guid'];
$ret['guid_sig'] = $xchan['xchan_guid_sig'];
return $ret;
}
function encode_item_terms($terms) {
$ret = array();
$allowed_export_terms = array( TERM_UNKNOWN, TERM_HASHTAG, TERM_MENTION, TERM_CATEGORY, TERM_BOOKMARK );
if($terms) {
foreach($terms as $term) {
if(in_array($term['type'],$allowed_export_terms))
$ret[] = array('tag' => $term['term'], 'url' => $term['url'], 'type' => termtype($term['type']));
}
}
return $ret;
}
function termtype($t) {
$types = array('unknown','hashtag','mention','category','private_category','file','search','thing','bookmark');
return(($types[$t]) ? $types[$t] : 'unknown');
}
function decode_tags($t) {
if($t) {
$ret = array();
foreach($t as $x) {
$tag = array();
$tag['term'] = htmlspecialchars($x['tag'], ENT_COMPAT,'UTF-8',false);
$tag['url'] = htmlspecialchars($x['url'], ENT_COMPAT,'UTF-8',false);
switch($x['type']) {
case 'hashtag':
$tag['type'] = TERM_HASHTAG;
break;
case 'mention':
$tag['type'] = TERM_MENTION;
break;
case 'category':
$tag['type'] = TERM_CATEGORY;
break;
case 'private_category':
$tag['type'] = TERM_PCATEGORY;
break;
case 'file':
$tag['type'] = TERM_FILE;
break;
case 'search':
$tag['type'] = TERM_SEARCH;
break;
case 'thing':
$tag['type'] = TERM_THING;
break;
case 'bookmark':
$tag['type'] = TERM_BOOKMARK;
break;
default:
case 'unknown':
$tag['type'] = TERM_UNKNOWN;
break;
}
$ret[] = $tag;
}
return $ret;
}
return '';
}
// santise a potentially complex array
function activity_sanitise($arr) {
if($arr) {
if(is_array($arr)) {
$ret = array();
foreach($arr as $k => $x) {
if(is_array($x))
$ret[$k] = activity_sanitise($x);
else
$ret[$k] = htmlspecialchars($x, ENT_COMPAT,'UTF-8',false);
}
return $ret;
}
else {
return htmlspecialchars($arr, ENT_COMPAT,'UTF-8', false);
}
}
return '';
}
// sanitise a simple linear array
function array_sanitise($arr) {
if($arr) {
$ret = array();
foreach($arr as $x) {
$ret[] = htmlspecialchars($x, ENT_COMPAT,'UTF-8',false);
}
return $ret;
}
return '';
}
function encode_item_flags($item) {
// most of item_flags and item_restrict are local settings which don't apply when transmitted.
// We may need those for the case of syncing other hub locations which you are attached to.
$ret = array();
if($item['item_restrict'] & ITEM_DELETED)
$ret[] = 'deleted';
if($item['item_flags'] & ITEM_THREAD_TOP)
$ret[] = 'thread_parent';
if($item['item_flags'] & ITEM_NSFW)
$ret[] = 'nsfw';
if($item['item_private'])
$ret[] = 'private';
return $ret;
}
function encode_mail($item) {
$x = array();
$x['type'] = 'mail';
$x['encoding'] = 'zot';
if(array_key_exists('mail_flags',$item) && ($item['mail_flags'] & MAIL_OBSCURED)) {
$key = get_config('system','prvkey');
if($item['title'])
$item['title'] = crypto_unencapsulate(json_decode_plus($item['title']),$key);
if($item['body'])
$item['body'] = crypto_unencapsulate(json_decode_plus($item['body']),$key);
}
$x['message_id'] = $item['mid'];
$x['message_parent'] = $item['parent_mid'];
$x['created'] = $item['created'];
$x['expires'] = $item['expires'];
$x['diaspora_meta'] = $item['diaspora_meta'];
$x['title'] = $item['title'];
$x['body'] = $item['body'];
$x['from'] = encode_item_xchan($item['from']);
$x['to'] = encode_item_xchan($item['to']);
if($item['attach'])
$x['attach'] = json_decode_plus($item['attach']);
$x['flags'] = array();
if($item['mail_flags'] & MAIL_RECALLED) {
$x['flags'][] = 'recalled';
$x['title'] = '';
$x['body'] = '';
}
return $x;
}
function get_mail_elements($x) {
$arr = array();
$arr['body'] = (($x['body']) ? htmlspecialchars($x['body'], ENT_COMPAT,'UTF-8',false) : '');
$arr['title'] = (($x['title'])? htmlspecialchars($x['title'],ENT_COMPAT,'UTF-8',false) : '');
$arr['created'] = datetime_convert('UTC','UTC',$x['created']);
if((! array_key_exists('expires',$x)) || ($x['expires'] === NULL_DATE))
$arr['expires'] = NULL_DATE;
else
$arr['expires'] = datetime_convert('UTC','UTC',$x['expires']);
$arr['mail_flags'] = 0;
if($x['flags'] && is_array($x['flags'])) {
if(in_array('recalled',$x['flags'])) {
$arr['mail_flags'] |= MAIL_RECALLED;
}
}
$key = get_config('system','pubkey');
$arr['mail_flags'] |= MAIL_OBSCURED;
$arr['body'] = htmlspecialchars($arr['body'],ENT_COMPAT,'UTF-8',false);
if($arr['body'])
$arr['body'] = json_encode(crypto_encapsulate($arr['body'],$key));
$arr['title'] = htmlspecialchars($arr['title'],ENT_COMPAT,'UTF-8',false);
if($arr['title'])
$arr['title'] = json_encode(crypto_encapsulate($arr['title'],$key));
if($arr['created'] > datetime_convert())
$arr['created'] = datetime_convert();
$arr['mid'] = (($x['message_id']) ? htmlspecialchars($x['message_id'], ENT_COMPAT,'UTF-8',false) : '');
$arr['parent_mid'] = (($x['message_parent']) ? htmlspecialchars($x['message_parent'], ENT_COMPAT,'UTF-8',false) : '');
if($x['attach'])
$arr['attach'] = activity_sanitise($x['attach']);
if(($xchan_hash = import_author_xchan($x['from'])) !== false)
$arr['from_xchan'] = $xchan_hash;
else
return array();
if(($xchan_hash = import_author_xchan($x['to'])) !== false)
$arr['to_xchan'] = $xchan_hash;
else
return array();
return $arr;
}
function get_profile_elements($x) {
$arr = array();
if(($xchan_hash = import_author_xchan($x['from'])) !== false)
$arr['xprof_hash'] = $xchan_hash;
else
return array();
$arr['desc'] = (($x['title']) ? htmlspecialchars($x['title'],ENT_COMPAT,'UTF-8',false) : '');
$arr['dob'] = datetime_convert('UTC','UTC',$x['birthday'],'Y-m-d');
$arr['age'] = (($x['age']) ? intval($x['age']) : 0);
$arr['gender'] = (($x['gender']) ? htmlspecialchars($x['gender'], ENT_COMPAT,'UTF-8',false) : '');
$arr['marital'] = (($x['marital']) ? htmlspecialchars($x['marital'], ENT_COMPAT,'UTF-8',false) : '');
$arr['sexual'] = (($x['sexual']) ? htmlspecialchars($x['sexual'], ENT_COMPAT,'UTF-8',false) : '');
$arr['locale'] = (($x['locale']) ? htmlspecialchars($x['locale'], ENT_COMPAT,'UTF-8',false) : '');
$arr['region'] = (($x['region']) ? htmlspecialchars($x['region'], ENT_COMPAT,'UTF-8',false) : '');
$arr['postcode'] = (($x['postcode']) ? htmlspecialchars($x['postcode'], ENT_COMPAT,'UTF-8',false) : '');
$arr['country'] = (($x['country']) ? htmlspecialchars($x['country'], ENT_COMPAT,'UTF-8',false) : '');
$arr['keywords'] = (($x['keywords'] && is_array($x['keywords'])) ? array_sanitise($x['keywords']) : array());
return $arr;
}
function get_atom_elements($feed,$item,&$author) {
$best_photo = array();
$res = array();
$found_author = $item->get_author();
if($found_author) {
$author['author_name'] = unxmlify($found_author->get_name());
$author['author_link'] = unxmlify($found_author->get_link());
}
else {
$author['author_name'] = unxmlify($feed->get_title());
$author['author_link'] = unxmlify($feed->get_permalink());
}
if(substr($author['author_link'],-1,1) == '/')
$author['author_link'] = substr($author['author_link'],0,-1);
$res['mid'] = base64url_encode(unxmlify($item->get_id()));
$res['title'] = unxmlify($item->get_title());
$res['body'] = unxmlify($item->get_content());
$res['plink'] = unxmlify($item->get_link(0));
$res['item_flags'] = ITEM_RSS;
// removing the content of the title if its identically to the body
// This helps with auto generated titles e.g. from tumblr
if (title_is_body($res["title"], $res["body"]))
$res['title'] = "";
if($res['plink'])
$base_url = implode('/', array_slice(explode('/',$res['plink']),0,3));
else
$base_url = '';
// look for a photo. We should check media size and find the best one,
// but for now let's just find any author photo
$rawauthor = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'author');
if($rawauthor && $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
$base = $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
foreach($base as $link) {
if(!x($author, 'author_photo') || ! $author['author_photo']) {
if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
$author['author_photo'] = unxmlify($link['attribs']['']['href']);
}
}
}
$rawactor = $item->get_item_tags(NAMESPACE_ACTIVITY, 'actor');
if($rawactor && activity_match($rawactor[0]['child'][NAMESPACE_ACTIVITY]['obj_type'][0]['data'],ACTIVITY_OBJ_PERSON)) {
$base = $rawactor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
if($base && count($base)) {
foreach($base as $link) {
if($link['attribs']['']['rel'] === 'alternate' && (! $res['author_link']))
$author['author_link'] = unxmlify($link['attribs']['']['href']);
if(!x($author, 'author_photo') || ! $author['author_photo']) {
if($link['attribs']['']['rel'] === 'avatar' || $link['attribs']['']['rel'] === 'photo')
$author['author_photo'] = unxmlify($link['attribs']['']['href']);
}
}
}
}
// check for a yahoo media element (github etc.)
if(! $author['author_photo']) {
$rawmedia = $item->get_item_tags(NAMESPACE_YMEDIA,'thumbnail');
if($rawmedia && $rawmedia[0]['attribs']['']['url']) {
$author['author_photo'] = strip_tags(unxmlify($rawmedia[0]['attribs']['']['url']));
}
}
// No photo/profile-link on the item - look at the feed level
if((! (x($author,'author_link'))) || (! (x($author,'author_photo')))) {
$rawauthor = $feed->get_feed_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'author');
if($rawauthor && $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
$base = $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
foreach($base as $link) {
if($link['attribs']['']['rel'] === 'alternate' && (! $author['author_link']))
$author['author_link'] = unxmlify($link['attribs']['']['href']);
if(! $author['author_photo']) {
if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
$author['author_photo'] = unxmlify($link['attribs']['']['href']);
}
}
}
$rawactor = $feed->get_feed_tags(NAMESPACE_ACTIVITY, 'subject');
if($rawactor && activity_match($rawactor[0]['child'][NAMESPACE_ACTIVITY]['obj_type'][0]['data'],ACTIVITY_OBJ_PERSON)) {
$base = $rawactor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
if($base && count($base)) {
foreach($base as $link) {
if($link['attribs']['']['rel'] === 'alternate' && (! $res['author_link']))
$author['author_link'] = unxmlify($link['attribs']['']['href']);
if(! (x($author,'author_photo'))) {
if($link['attribs']['']['rel'] === 'avatar' || $link['attribs']['']['rel'] === 'photo')
$author['author_photo'] = unxmlify($link['attribs']['']['href']);
}
}
}
}
}
$apps = $item->get_item_tags(NAMESPACE_STATUSNET,'notice_info');
if($apps && $apps[0]['attribs']['']['source']) {
$res['app'] = strip_tags(unxmlify($apps[0]['attribs']['']['source']));
}
/**
* If there's a copy of the body content which is guaranteed to have survived mangling in transit, use it.
*/
$have_real_body = false;
$rawenv = $item->get_item_tags(NAMESPACE_DFRN, 'env');
if($rawenv) {
$have_real_body = true;
$res['body'] = $rawenv[0]['data'];
$res['body'] = str_replace(array(' ',"\t","\r","\n"), array('','','',''),$res['body']);
// make sure nobody is trying to sneak some html tags by us
$res['body'] = notags(base64url_decode($res['body']));
// We could probably turn these old Friendica bbcode bookmarks into bookmark tags but we'd have to
// create a term table item for them. For now just make sure they stay as links.
$res['body'] = preg_replace('/\[bookmark(.*?)\](.*?)\[\/bookmark\]','[url$1]$2[/url]',$res['body']);
}
$res['body'] = limit_body_size($res['body']);
// It isn't certain at this point whether our content is plaintext or html and we'd be foolish to trust
// the content type. Our own network only emits text normally, though it might have been converted to
// html if we used a pubsubhubbub transport. But if we see even one html tag in our text, we will
// have to assume it is all html and needs to be purified.
// It doesn't matter all that much security wise - because before this content is used anywhere, we are
// going to escape any tags we find regardless, but this lets us import a limited subset of html from
// the wild, by sanitising it and converting supported tags to bbcode before we rip out any remaining
// html.
if((strpos($res['body'],'<') !== false) && (strpos($res['body'],'>') !== false)) {
$res['body'] = reltoabs($res['body'],$base_url);
$res['body'] = html2bb_video($res['body']);
$res['body'] = oembed_html2bbcode($res['body']);
$res['body'] = purify_html($res['body']);
$res['body'] = @html2bbcode($res['body']);
}
elseif(! $have_real_body) {
// it's not one of our messages and it has no tags
// so it's probably just text. We'll escape it just to be safe.
$res['body'] = escape_tags($res['body']);
}
if(get_config('system','feedlinks')) {
if($res['plink'] && $res['title']) {
$res['body'] = '#^[url=' . $res['plink'] . ']' . $res['title'] . '[/url]' . "\n\n" . $res['body'];
$terms = array();
$terms[] = array(
'otype' => TERM_OBJ_POST,
'type' => TERM_BOOKMARK,
'url' => $res['plink'],
'term' => $res['title'],
);
}
elseif($res['plink']) {
$res['body'] = '#^[url]' . $res['plink'] . '[/url]' . "\n\n" . $res['body'];
$terms = array();
$terms[] = array(
'otype' => TERM_OBJ_POST,
'type' => TERM_BOOKMARK,
'url' => $res['plink'],
'term' => $res['plink'],
);
}
}
$private = $item->get_item_tags(NAMESPACE_DFRN,'private');
if($private && intval($private[0]['data']) > 0)
$res['item_private'] = ((intval($private[0]['data'])) ? 1 : 0);
else
$res['item_private'] = 0;
$rawlocation = $item->get_item_tags(NAMESPACE_DFRN, 'location');
if($rawlocation)
$res['location'] = unxmlify($rawlocation[0]['data']);
$rawcreated = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'published');
if($rawcreated)
$res['created'] = unxmlify($rawcreated[0]['data']);
$rawedited = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'updated');
if($rawedited)
$res['edited'] = unxmlify($rawedited[0]['data']);
if((x($res,'edited')) && (! (x($res,'created'))))
$res['created'] = $res['edited'];
if(! $res['created'])
$res['created'] = $item->get_date('c');
if(! $res['edited'])
$res['edited'] = $item->get_date('c');
// Disallow time travelling posts
$d1 = strtotime($res['created']);
$d2 = strtotime($res['edited']);
$d3 = strtotime('now');
if($d1 > $d3)
$res['created'] = datetime_convert();
if($d2 > $d3)
$res['edited'] = datetime_convert();
$res['created'] = datetime_convert('UTC','UTC',$res['created']);
$res['edited'] = datetime_convert('UTC','UTC',$res['edited']);
$rawowner = $item->get_item_tags(NAMESPACE_DFRN, 'owner');
if(! $rawowner)
$rawowner = $item->get_item_tags(NAMESPACE_ZOT,'owner');
if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data'])
$author['owner_name'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']);
elseif($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data'])
$author['owner_name'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data']);
if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data'])
$author['owner_link'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']);
elseif($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data'])
$author['owner_link'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data']);
if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
$base = $rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
foreach($base as $link) {
if(!x($author, 'owner_photo') || ! $author['owner_photo']) {
if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
$author['owner_photo'] = unxmlify($link['attribs']['']['href']);
}
}
}
$rawgeo = $item->get_item_tags(NAMESPACE_GEORSS,'point');
if($rawgeo)
$res['coord'] = unxmlify($rawgeo[0]['data']);
$rawverb = $item->get_item_tags(NAMESPACE_ACTIVITY, 'verb');
// select between supported verbs
if($rawverb) {
$res['verb'] = unxmlify($rawverb[0]['data']);
}
// translate OStatus unfollow to activity streams if it happened to get selected
if((x($res,'verb')) && ($res['verb'] === 'http://ostatus.org/schema/1.0/unfollow'))
$res['verb'] = ACTIVITY_UNFOLLOW;
$cats = $item->get_categories();
if($cats) {
if(is_null($terms))
$terms = array();
foreach($cats as $cat) {
$term = $cat->get_term();
if(! $term)
$term = $cat->get_label();
$scheme = $cat->get_scheme();
$termurl = '';
if($scheme && $term && stristr($scheme,'X-DFRN:')) {
$termtype = ((substr($scheme,7,1) === '#') ? TERM_HASHTAG : TERM_MENTION);
$termurl = unxmlify(substr($scheme,9));
}
else {
$termtype = TERM_CATEGORY;
}
$termterm = notags(trim(unxmlify($term)));
if($termterm) {
$terms[] = array(
'otype' => TERM_OBJ_POST,
'type' => $termtype,
'url' => $termurl,
'term' => $termterm,
);
}
}
}
if(! is_null($terms))
$res['term'] = $terms;
$attach = $item->get_enclosures();
if($attach) {
$res['attach'] = array();
$att_arr = array();
foreach($attach as $att) {
$len = intval($att->get_length());
$link = str_replace(array(',','"'),array('%2D','%22'),notags(trim(unxmlify($att->get_link()))));
$title = str_replace(array(',','"'),array('%2D','%22'),notags(trim(unxmlify($att->get_title()))));
$type = str_replace(array(',','"'),array('%2D','%22'),notags(trim(unxmlify($att->get_type()))));
if(strpos($type,';'))
$type = substr($type,0,strpos($type,';'));
if((! $link) || (strpos($link,'http') !== 0))
continue;
if(! $title)
$title = ' ';
if(! $type)
$type = 'application/octet-stream';
$res['attach'][] = array('href' => $link, 'length' => $len, 'type' => $type, 'title' => $title );
}
}
$rawobj = $item->get_item_tags(NAMESPACE_ACTIVITY, 'object');
if($rawobj) {
$obj = array();
$child = $rawobj[0]['child'];
if($child[NAMESPACE_ACTIVITY]['obj_type'][0]['data']) {
$res['obj_type'] = $child[NAMESPACE_ACTIVITY]['obj_type'][0]['data'];
$obj['type'] = $child[NAMESPACE_ACTIVITY]['obj_type'][0]['data'];
}
if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'id') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'])
$obj['id'] = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'];
if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'link') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['link'])
$obj['link'] = encode_rel_links($child[SIMPLEPIE_NAMESPACE_ATOM_10]['link']);
if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'title') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'])
$obj['title'] = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'];
if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'content') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data']) {
$body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data'];
if(! $body)
$body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['summary'][0]['data'];
// preserve a copy of the original body content in case we later need to parse out any microformat information, e.g. events
$obj['orig'] = xmlify($body);
if((strpos($body,'<') !== false) || (strpos($body,'>') !== false)) {
$body = purify_html($body);
$body = html2bbcode($body);
}
$obj['content'] = $body;
}
$res['object'] = $obj;
}
$rawobj = $item->get_item_tags(NAMESPACE_ACTIVITY, 'target');
if($rawobj) {
$obj = array();
$child = $rawobj[0]['child'];
if($child[NAMESPACE_ACTIVITY]['obj_type'][0]['data']) {
$res['tgt_type'] = $child[NAMESPACE_ACTIVITY]['obj_type'][0]['data'];
$obj['type'] = $child[NAMESPACE_ACTIVITY]['obj_type'][0]['data'];
}
if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'id') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'])
$obj['id'] = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'];
if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'link') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['link'])
$obj['link'] = encode_rel_links($child[SIMPLEPIE_NAMESPACE_ATOM_10]['link']);
if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'title') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'])
$obj['title'] = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'];
if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'content') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data']) {
$body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data'];
if(! $body)
$body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['summary'][0]['data'];
// preserve a copy of the original body content in case we later need to parse out any microformat information, e.g. events
$obj['orig'] = xmlify($body);
if((strpos($body,'<') !== false) || (strpos($body,'>') !== false)) {
$body = purify_html($body);
$body = html2bbcode($body);
}
$obj['content'] = $body;
}
$res['target'] = $obj;
}
$res['public_policy'] = 'specific';
$res['comment_policy'] = 'none';
$arr = array('feed' => $feed, 'item' => $item, 'result' => $res);
call_hooks('parse_atom', $arr);
logger('get_atom_elements: author: ' . print_r($author,true),LOGGER_DATA);
logger('get_atom_elements: ' . print_r($res,true),LOGGER_DATA);
return $res;
}
function encode_rel_links($links) {
$o = '';
if(! ((is_array($links)) && (count($links))))
return $o;
foreach($links as $link) {
$o .= '<link ';
if($link['attribs']['']['rel'])
$o .= 'rel="' . $link['attribs']['']['rel'] . '" ';
if($link['attribs']['']['type'])
$o .= 'type="' . $link['attribs']['']['type'] . '" ';
if($link['attribs']['']['href'])
$o .= 'href="' . $link['attribs']['']['href'] . '" ';
if( (x($link['attribs'],NAMESPACE_MEDIA)) && $link['attribs'][NAMESPACE_MEDIA]['width'])
$o .= 'media:width="' . $link['attribs'][NAMESPACE_MEDIA]['width'] . '" ';
if( (x($link['attribs'],NAMESPACE_MEDIA)) && $link['attribs'][NAMESPACE_MEDIA]['height'])
$o .= 'media:height="' . $link['attribs'][NAMESPACE_MEDIA]['height'] . '" ';
$o .= ' />' . "\n" ;
}
return xmlify($o);
}
function item_store($arr,$allow_exec = false) {
$d = array('item' => $arr, 'allow_exec' => $allow_exec);
call_hooks('item_store', $d );
$arr = $d['item'];
$allow_exec = $d['allow_exec'];
$ret = array('success' => false, 'item_id' => 0);
if(! $arr['uid']) {
logger('item_store: no uid');
$ret['message'] = 'No uid.';
return $ret;
}
$uplinked_comment = false;
// If a page layout is provided, ensure it exists and belongs to us.
if(array_key_exists('layout_mid',$arr) && $arr['layout_mid']) {
$l = q("select item_restrict from item where mid = '%s' and uid = %d limit 1",
dbesc($arr['layout_mid']),
intval($arr['uid'])
);
if((! $l) || (! ($l[0]['item_restrict'] & ITEM_PDL)))
unset($arr['layout_mid']);
}
// Don't let anybody set these, either intentionally or accidentally
if(array_key_exists('id',$arr))
unset($arr['id']);
if(array_key_exists('parent',$arr))
unset($arr['parent']);
$arr['mimetype'] = ((x($arr,'mimetype')) ? notags(trim($arr['mimetype'])) : 'text/bbcode');
if(($arr['mimetype'] == 'application/x-php') && (! $allow_exec)) {
logger('item_store: php mimetype but allow_exec is denied.');
$ret['message'] = 'exec denied.';
return $ret;
}
$arr['title'] = ((array_key_exists('title',$arr) && strlen($arr['title'])) ? trim($arr['title']) : '');
$arr['body'] = ((array_key_exists('body',$arr) && strlen($arr['body'])) ? trim($arr['body']) : '');
$arr['diaspora_meta'] = ((x($arr,'diaspora_meta')) ? $arr['diaspora_meta'] : '');
$arr['allow_cid'] = ((x($arr,'allow_cid')) ? trim($arr['allow_cid']) : '');
$arr['allow_gid'] = ((x($arr,'allow_gid')) ? trim($arr['allow_gid']) : '');
$arr['deny_cid'] = ((x($arr,'deny_cid')) ? trim($arr['deny_cid']) : '');
$arr['deny_gid'] = ((x($arr,'deny_gid')) ? trim($arr['deny_gid']) : '');
$arr['item_private'] = ((x($arr,'item_private')) ? intval($arr['item_private']) : 0 );
$arr['item_flags'] = ((x($arr,'item_flags')) ? intval($arr['item_flags']) : 0 );
// only detect language if we have text content, and if the post is private but not yet
// obscured, make it so.
if(! ($arr['item_flags'] & ITEM_OBSCURED)) {
$arr['lang'] = detect_language($arr['body']);
// apply the input filter here - if it is obscured it has been filtered already
$arr['body'] = z_input_filter($arr['uid'],$arr['body'],$arr['mimetype']);
if(local_user() && (! $arr['sig'])) {
$channel = get_app()->get_channel();
if($channel['channel_hash'] === $arr['author_xchan']) {
$arr['sig'] = base64url_encode(rsa_sign($arr['body'],$channel['channel_prvkey']));
$arr['item_flags'] |= ITEM_VERIFIED;
}
}
$allowed_languages = get_pconfig($arr['uid'],'system','allowed_languages');
if((is_array($allowed_languages)) && ($arr['lang']) && (! array_key_exists($arr['lang'],$allowed_languages))) {
$translate = array('item' => $arr, 'from' => $arr['lang'], 'to' => $allowed_languages, 'translated' => false);
call_hooks('item_translate', $translate);
if((! $translate['translated']) && (intval(get_pconfig($arr['uid'],'system','reject_disallowed_languages')))) {
logger('item_store: language ' . $arr['lang'] . ' not accepted for uid ' . $arr['uid']);
$ret['message'] = 'language not accepted';
return $ret;
}
$arr = $translate['item'];
}
if($arr['item_private']) {
$key = get_config('system','pubkey');
$arr['item_flags'] = $arr['item_flags'] | ITEM_OBSCURED;
if($arr['title'])
$arr['title'] = json_encode(crypto_encapsulate($arr['title'],$key));
if($arr['body'])
$arr['body'] = json_encode(crypto_encapsulate($arr['body'],$key));
}
}
if((x($arr,'object')) && is_array($arr['object'])) {
activity_sanitise($arr['object']);
$arr['object'] = json_encode($arr['object']);
}
if((x($arr,'target')) && is_array($arr['target'])) {
activity_sanitise($arr['target']);
$arr['target'] = json_encode($arr['target']);
}
if((x($arr,'attach')) && is_array($arr['attach'])) {
activity_sanitise($arr['attach']);
$arr['attach'] = json_encode($arr['attach']);
}
$arr['aid'] = ((x($arr,'aid')) ? intval($arr['aid']) : 0);
$arr['mid'] = ((x($arr,'mid')) ? notags(trim($arr['mid'])) : random_string());
$arr['author_xchan'] = ((x($arr,'author_xchan')) ? notags(trim($arr['author_xchan'])) : '');
$arr['owner_xchan'] = ((x($arr,'owner_xchan')) ? notags(trim($arr['owner_xchan'])) : '');
$arr['created'] = ((x($arr,'created') !== false) ? datetime_convert('UTC','UTC',$arr['created']) : datetime_convert());
$arr['edited'] = ((x($arr,'edited') !== false) ? datetime_convert('UTC','UTC',$arr['edited']) : datetime_convert());
$arr['expires'] = ((x($arr,'expires') !== false) ? datetime_convert('UTC','UTC',$arr['expires']) : NULL_DATE);
$arr['commented'] = ((x($arr,'commented') !== false) ? datetime_convert('UTC','UTC',$arr['commented']) : datetime_convert());
$arr['comments_closed'] = ((x($arr,'comments_closed') !== false) ? datetime_convert('UTC','UTC',$arr['comments_closed']) : NULL_DATE);
$arr['received'] = datetime_convert();
$arr['changed'] = datetime_convert();
$arr['location'] = ((x($arr,'location')) ? notags(trim($arr['location'])) : '');
$arr['coord'] = ((x($arr,'coord')) ? notags(trim($arr['coord'])) : '');
$arr['parent_mid'] = ((x($arr,'parent_mid')) ? notags(trim($arr['parent_mid'])) : '');
$arr['thr_parent'] = ((x($arr,'thr_parent')) ? notags(trim($arr['thr_parent'])) : $arr['parent_mid']);
$arr['verb'] = ((x($arr,'verb')) ? notags(trim($arr['verb'])) : '');
$arr['obj_type'] = ((x($arr,'obj_type')) ? notags(trim($arr['obj_type'])) : '');
$arr['object'] = ((x($arr,'object')) ? trim($arr['object']) : '');
$arr['tgt_type'] = ((x($arr,'tgt_type')) ? notags(trim($arr['tgt_type'])) : '');
$arr['target'] = ((x($arr,'target')) ? trim($arr['target']) : '');
$arr['plink'] = ((x($arr,'plink')) ? notags(trim($arr['plink'])) : '');
$arr['attach'] = ((x($arr,'attach')) ? notags(trim($arr['attach'])) : '');
$arr['app'] = ((x($arr,'app')) ? notags(trim($arr['app'])) : '');
$arr['item_restrict'] = ((x($arr,'item_restrict')) ? intval($arr['item_restrict']) : 0 );
$arr['public_policy'] = ((x($arr,'public_policy')) ? notags(trim($arr['public_policy'])) : '' );
$arr['comment_policy'] = ((x($arr,'comment_policy')) ? notags(trim($arr['comment_policy'])) : 'contacts' );
$arr['item_flags'] = $arr['item_flags'] | ITEM_UNSEEN;
if($arr['comment_policy'] == 'none')
$arr['item_flags'] = $arr['item_flags'] | ITEM_NOCOMMENT;
// handle time travelers
// Allow a bit of fudge in case somebody just has a slightly slow/fast clock
$d1 = new DateTime('now +10 minutes', new DateTimeZone('UTC'));
$d2 = new DateTime($arr['created'] . '+00:00');
if($d2 > $d1)
$arr['item_restrict'] = $arr['item_restrict'] | ITEM_DELAYED_PUBLISH;
$arr['llink'] = z_root() . '/display/' . $arr['mid'];
if(! $arr['plink'])
$arr['plink'] = $arr['llink'];
if($arr['parent_mid'] === $arr['mid']) {
$parent_id = 0;
$parent_deleted = 0;
$allow_cid = $arr['allow_cid'];
$allow_gid = $arr['allow_gid'];
$deny_cid = $arr['deny_cid'];
$deny_gid = $arr['deny_gid'];
$public_policy = $arr['public_policy'];
$comments_closed = $arr['comments_closed'];
$arr['item_flags'] = $arr['item_flags'] | ITEM_THREAD_TOP;
}
else {
// find the parent and snarf the item id and ACL's
// and anything else we need to inherit
$r = q("SELECT * FROM `item` WHERE `mid` = '%s' AND `uid` = %d ORDER BY `id` ASC LIMIT 1",
dbesc($arr['parent_mid']),
intval($arr['uid'])
);
if($r) {
if(comments_are_now_closed($r[0])) {
logger('item_store: comments closed');
$ret['message'] = 'Comments closed.';
return $ret;
}
// is the new message multi-level threaded?
// even though we don't support it now, preserve the info
// and re-attach to the conversation parent.
if($r[0]['mid'] != $r[0]['parent_mid']) {
$arr['parent_mid'] = $r[0]['parent_mid'];
$z = q("SELECT * FROM `item` WHERE `mid` = '%s' AND `parent_mid` = '%s' AND `uid` = %d
ORDER BY `id` ASC LIMIT 1",
dbesc($r[0]['parent_mid']),
dbesc($r[0]['parent_mid']),
intval($arr['uid'])
);
if($z && count($z))
$r = $z;
}
$parent_id = $r[0]['id'];
$parent_deleted = $r[0]['item_restrict'] & ITEM_DELETED;
$allow_cid = $r[0]['allow_cid'];
$allow_gid = $r[0]['allow_gid'];
$deny_cid = $r[0]['deny_cid'];
$deny_gid = $r[0]['deny_gid'];
$public_policy = $r[0]['public_policy'];
$comments_closed = $r[0]['comments_closed'];
if($r[0]['item_flags'] & ITEM_WALL)
$arr['item_flags'] = $arr['item_flags'] | ITEM_WALL;
// An uplinked comment might arrive with a downstream owner.
// Fix it.
if($r[0]['owner_xchan'] !== $arr['owner_xchan']) {
$arr['owner_xchan'] = $r[0]['owner_xchan'];
$uplinked_comment = true;
}
// if the parent is private, force privacy for the entire conversation
if($r[0]['item_private'])
$arr['item_private'] = $r[0]['item_private'];
// Edge case. We host a public forum that was originally posted to privately.
// The original author commented, but as this is a comment, the permissions
// weren't fixed up so it will still show the comment as private unless we fix it here.
if((intval($r[0]['item_flags']) & ITEM_UPLINK) && (! $r[0]['item_private']))
$arr['item_private'] = 0;
}
else {
logger('item_store: item parent was not found - ignoring item');
$ret['message'] = 'parent not found.';
return $ret;
}
}
if($parent_deleted)
$arr['item_restrict'] = $arr['item_restrict'] | ITEM_DELETED;
$r = q("SELECT `id` FROM `item` WHERE `mid` = '%s' AND `uid` = %d LIMIT 1",
dbesc($arr['mid']),
intval($arr['uid'])
);
if($r) {
logger('item_store: duplicate item ignored. ' . print_r($arr,true));
$ret['message'] = 'duplicate post.';
return $ret;
}
call_hooks('item_store',$arr);
// This hook remains for backward compatibility.
call_hooks('post_remote',$arr);
if(x($arr,'cancel')) {
logger('item_store: post cancelled by plugin.');
$ret['message'] = 'cancelled.';
return $ret;
}
// pull out all the taxonomy stuff for separate storage
$terms = null;
if(array_key_exists('term',$arr)) {
$terms = $arr['term'];
unset($arr['term']);
}
logger('item_store: ' . print_r($arr,true), LOGGER_DATA);
dbesc_array($arr);
$r = dbq("INSERT INTO `item` (`"
. implode("`, `", array_keys($arr))
. "`) VALUES ('"
. implode("', '", array_values($arr))
. "')" );
// find the item we just created
$r = q("SELECT * FROM `item` WHERE `mid` = '%s' AND `uid` = %d ORDER BY `id` ASC ",
$arr['mid'], // already dbesc'd
intval($arr['uid'])
);
if($r && count($r)) {
$current_post = $r[0]['id'];
$arr = $r[0]; // This will gives us a fresh copy of what's now in the DB and undo the db escaping, which really messes up the notifications
logger('item_store: created item ' . $current_post, LOGGER_DEBUG);
}
else {
logger('item_store: could not locate stored item');
$ret['message'] = 'unable to retrieve.';
return $ret;
}
if(count($r) > 1) {
logger('item_store: duplicated post occurred. Removing duplicates.');
q("DELETE FROM `item` WHERE `mid` = '%s' AND `uid` = %d AND `id` != %d ",
$arr['mid'],
intval($arr['uid']),
intval($current_post)
);
}
if((! $parent_id) || ($arr['parent_mid'] === $arr['mid']))
$parent_id = $current_post;
if(strlen($allow_cid) || strlen($allow_gid) || strlen($deny_cid) || strlen($deny_gid) || strlen($public_policy))
$private = 1;
else
$private = $arr['item_private'];
// Set parent id - and also make sure to inherit the parent's ACL's.
$r = q("UPDATE item SET parent = %d, allow_cid = '%s', allow_gid = '%s',
deny_cid = '%s', deny_gid = '%s', public_policy = '%s', item_private = %d, comments_closed = '%s'
WHERE id = %d LIMIT 1",
intval($parent_id),
dbesc($allow_cid),
dbesc($allow_gid),
dbesc($deny_cid),
dbesc($deny_gid),
dbesc($public_policy),
intval($private),
dbesc($comments_closed),
intval($current_post)
);
// These are probably redundant now that we've queried the just stored post
$arr['id'] = $current_post;
$arr['parent'] = $parent_id;
$arr['allow_cid'] = $allow_cid;
$arr['allow_gid'] = $allow_gid;
$arr['deny_cid'] = $deny_cid;
$arr['deny_gid'] = $deny_gid;
$arr['public_policy'] = $public_policy;
$arr['item_private'] = $private;
$arr['comments_closed'] = $comments_closed;
// Store taxonomy
if(($terms) && (is_array($terms))) {
foreach($terms as $t) {
q("insert into term (uid,oid,otype,type,term,url)
values(%d,%d,%d,%d,'%s','%s') ",
intval($arr['uid']),
intval($current_post),
intval(TERM_OBJ_POST),
intval($t['type']),
dbesc($t['term']),
dbesc($t['url'])
);
}
$arr['term'] = $terms;
}
call_hooks('post_remote_end',$arr);
// update the commented timestamp on the parent
$z = q("select max(created) as commented from item where parent_mid = '%s' and uid = %d and not ( item_restrict & %d ) ",
dbesc($arr['parent_mid']),
intval($arr['uid']),
intval(ITEM_DELAYED_PUBLISH)
);
q("UPDATE item set commented = '%s', changed = '%s' WHERE id = %d LIMIT 1",
dbesc(($z) ? $z[0]['commented'] : (datetime_convert())),
dbesc(datetime_convert()),
intval($parent_id)
);
send_status_notifications($current_post,$arr);
tag_deliver($arr['uid'],$current_post);
$ret['success'] = true;
$ret['item_id'] = $current_post;
return $ret;
}
function item_store_update($arr,$allow_exec = false) {
$d = array('item' => $arr, 'allow_exec' => $allow_exec);
call_hooks('item_store_update', $d );
$arr = $d['item'];
$allow_exec = $d['allow_exec'];
$ret = array('success' => false, 'item_id' => 0);
if(! intval($arr['uid'])) {
logger('item_store_update: no uid');
$ret['message'] = 'no uid.';
return $ret;
}
if(! intval($arr['id'])) {
logger('item_store_update: no id');
$ret['message'] = 'no id.';
return $ret;
}
$orig_post_id = $arr['id'];
$uid = $arr['uid'];
$orig = q("select * from item where id = %d and uid = %d limit 1",
intval($orig_post_id),
intval($uid)
);
if(! $orig) {
logger('item_store_update: original post not found: ' . $orig_post_id);
$ret['message'] = 'no original';
return $ret;
}
// override the unseen flag with the original
if($arr['item_flags'] & ITEM_UNSEEN)
$arr['item_flags'] = $arr['item_flags'] ^ ITEM_UNSEEN;
if($orig[0]['item_flags'] & ITEM_VERIFIED)
$orig[0]['item_flags'] = $orig[0]['item_flags'] ^ ITEM_VERIFIED;
if($orig[0]['item_flags'] & ITEM_OBSCURED)
$orig[0]['item_flags'] = $orig[0]['item_flags'] ^ ITEM_OBSCURED;
$arr['item_flags'] = intval($arr['item_flags']) | $orig[0]['item_flags'];
$arr['item_restrict'] = intval($arr['item_restrict']) | $orig[0]['item_restrict'];
if(array_key_exists('edit',$arr))
unset($arr['edit']);
$arr['mimetype'] = ((x($arr,'mimetype')) ? notags(trim($arr['mimetype'])) : 'text/bbcode');
if(($arr['mimetype'] == 'application/x-php') && (! $allow_exec)) {
logger('item_store: php mimetype but allow_exec is denied.');
$ret['message'] = 'exec denied.';
return $ret;
}
if(! ($arr['item_flags'] & ITEM_OBSCURED)) {
$arr['lang'] = detect_language($arr['body']);
// apply the input filter here - if it is obscured it has been filtered already
$arr['body'] = z_input_filter($arr['uid'],$arr['body'],$arr['mimetype']);
if(local_user() && (! $arr['sig'])) {
$channel = get_app()->get_channel();
if($channel['channel_hash'] === $arr['author_xchan']) {
$arr['sig'] = base64url_encode(rsa_sign($arr['body'],$channel['channel_prvkey']));
$arr['item_flags'] |= ITEM_VERIFIED;
}
}
$allowed_languages = get_pconfig($arr['uid'],'system','allowed_languages');
if((is_array($allowed_languages)) && ($arr['lang']) && (! array_key_exists($arr['lang'],$allowed_languages))) {
$translate = array('item' => $arr, 'from' => $arr['lang'], 'to' => $allowed_languages, 'translated' => false);
call_hooks('item_translate', $translate);
if((! $translate['translated']) && (intval(get_pconfig($arr['uid'],'system','reject_disallowed_languages')))) {
logger('item_store: language ' . $arr['lang'] . ' not accepted for uid ' . $arr['uid']);
$ret['message'] = 'language not accepted';
return $ret;
}
$arr = $translate['item'];
}
if($arr['item_private']) {
$key = get_config('system','pubkey');
$arr['item_flags'] = $arr['item_flags'] | ITEM_OBSCURED;
if($arr['title'])
$arr['title'] = json_encode(crypto_encapsulate($arr['title'],$key));
if($arr['body'])
$arr['body'] = json_encode(crypto_encapsulate($arr['body'],$key));
}
}
if((x($arr,'object')) && is_array($arr['object'])) {
activity_sanitise($arr['object']);
$arr['object'] = json_encode($arr['object']);
}
if((x($arr,'target')) && is_array($arr['target'])) {
activity_sanitise($arr['target']);
$arr['target'] = json_encode($arr['target']);
}
if((x($arr,'attach')) && is_array($arr['attach'])) {
activity_sanitise($arr['attach']);
$arr['attach'] = json_encode($arr['attach']);
}
unset($arr['id']);
unset($arr['uid']);
unset($arr['aid']);
unset($arr['mid']);
unset($arr['parent']);
unset($arr['parent_mid']);
unset($arr['created']);
unset($arr['author_xchan']);
unset($arr['owner_xchan']);
unset($arr['thr_parent']);
unset($arr['llink']);
$arr['edited'] = ((x($arr,'edited') !== false) ? datetime_convert('UTC','UTC',$arr['edited']) : datetime_convert());
$arr['expires'] = ((x($arr,'expires') !== false) ? datetime_convert('UTC','UTC',$arr['expires']) : $orig[0]['expires']);
if(array_key_exists('comments_closed',$arr) && $arr['comments_closed'] != NULL_DATE)
$arr['comments_closed'] = datetime_convert('UTC','UTC',$arr['comments_closed']);
else
$arr['comments_closed'] = $orig[0]['comments_closed'];
$arr['commented'] = $orig[0]['commented'];
$arr['received'] = datetime_convert();
$arr['changed'] = datetime_convert();
$arr['diaspora_meta'] = ((x($arr,'diaspora_meta')) ? $arr['diaspora_meta'] : $orig[0]['diaspora_meta']);
$arr['location'] = ((x($arr,'location')) ? notags(trim($arr['location'])) : $orig[0]['location']);
$arr['coord'] = ((x($arr,'coord')) ? notags(trim($arr['coord'])) : $orig[0]['coord']);
$arr['verb'] = ((x($arr,'verb')) ? notags(trim($arr['verb'])) : $orig[0]['verb']);
$arr['obj_type'] = ((x($arr,'obj_type')) ? notags(trim($arr['obj_type'])) : $orig[0]['obj_type']);
$arr['object'] = ((x($arr,'object')) ? trim($arr['object']) : $orig[0]['object']);
$arr['tgt_type'] = ((x($arr,'tgt_type')) ? notags(trim($arr['tgt_type'])) : $orig[0]['tgt_type']);
$arr['target'] = ((x($arr,'target')) ? trim($arr['target']) : $orig[0]['target']);
$arr['plink'] = ((x($arr,'plink')) ? notags(trim($arr['plink'])) : $orig[0]['plink']);
$arr['allow_cid'] = ((array_key_exists('allow_cid',$arr)) ? trim($arr['allow_cid']) : $orig[0]['allow_cid']);
$arr['allow_gid'] = ((array_key_exists('allow_gid',$arr)) ? trim($arr['allow_gid']) : $orig[0]['allow_gid']);
$arr['deny_cid'] = ((array_key_exists('deny_cid',$arr)) ? trim($arr['deny_cid']) : $orig[0]['deny_cid']);
$arr['deny_gid'] = ((array_key_exists('deny_gid',$arr)) ? trim($arr['deny_gid']) : $orig[0]['deny_gid']);
$arr['item_private'] = ((array_key_exists('item_private',$arr)) ? intval($arr['item_private']) : $orig[0]['item_private']);
$arr['title'] = ((array_key_exists('title',$arr) && strlen($arr['title'])) ? trim($arr['title']) : '');
$arr['body'] = ((array_key_exists('body',$arr) && strlen($arr['body'])) ? trim($arr['body']) : '');
$arr['attach'] = ((x($arr,'attach')) ? notags(trim($arr['attach'])) : $orig[0]['attach']);
$arr['app'] = ((x($arr,'app')) ? notags(trim($arr['app'])) : $orig[0]['app']);
// $arr['item_restrict'] = ((x($arr,'item_restrict')) ? intval($arr['item_restrict']) : $orig[0]['item_restrict'] );
// $arr['item_flags'] = ((x($arr,'item_flags')) ? intval($arr['item_flags']) : $orig[0]['item_flags'] );
$arr['sig'] = ((x($arr,'sig')) ? $arr['sig'] : '');
$arr['layout_mid'] = ((array_key_exists('layout_mid',$arr)) ? dbesc($arr['layout_mid']) : $orig[0]['layout_mid'] );
$arr['public_policy'] = ((x($arr,'public_policy')) ? notags(trim($arr['public_policy'])) : $orig[0]['public_policy'] );
$arr['comment_policy'] = ((x($arr,'comment_policy')) ? notags(trim($arr['comment_policy'])) : $orig[0]['comment_policy'] );
call_hooks('post_remote_update',$arr);
if(x($arr,'cancel')) {
logger('item_store_update: post cancelled by plugin.');
$ret['message'] = 'cancelled.';
return $ret;
}
// pull out all the taxonomy stuff for separate storage
$terms = null;
if(array_key_exists('term',$arr)) {
$terms = $arr['term'];
unset($arr['term']);
}
dbesc_array($arr);
logger('item_store_update: ' . print_r($arr,true), LOGGER_DATA);
$str = '';
foreach($arr as $k => $v) {
if($str)
$str .= ",";
$str .= " `" . $k . "` = '" . $v . "' ";
}
$r = dbq("update `item` set " . $str . " where id = " . $orig_post_id . " limit 1");
if($r)
logger('item_store_update: updated item ' . $orig_post_id, LOGGER_DEBUG);
else {
logger('item_store_update: could not update item');
$ret['message'] = 'DB update failed.';
return $ret;
}
$r = q("delete from term where oid = %d and otype = %d",
intval($orig_post_id),
intval(TERM_OBJ_POST)
);
if(($terms) && (is_array($terms))) {
foreach($terms as $t) {
q("insert into term (uid,oid,otype,type,term,url)
values(%d,%d,%d,%d,'%s','%s') ",
intval($uid),
intval($orig_post_id),
intval(TERM_OBJ_POST),
intval($t['type']),
dbesc($t['term']),
dbesc($t['url'])
);
}
$arr['term'] = $terms;
}
call_hooks('post_remote_update_end',$arr);
send_status_notifications($orig_post_id,$arr);
tag_deliver($uid,$orig_post_id);
$ret['success'] = true;
$ret['item_id'] = $orig_post_id;
return $ret;
}
function store_diaspora_comment_sig($datarray, $channel, $parent_item, $post_id) {
// We won't be able to sign Diaspora comments for authenticated visitors
// - we don't have their private key
// since Diaspora doesn't handle edits we can only do this for the original text and not update it.
$enabled = intval(get_config('system','diaspora_enabled'));
if(! $enabled) {
logger('mod_item: diaspora support disabled, not storing comment signature', LOGGER_DEBUG);
return;
}
require_once('include/bb2diaspora.php');
$signed_body = bb2diaspora_itembody($datarray);
logger('mod_item: storing diaspora comment signature',LOGGER_DEBUG);
$diaspora_handle = $channel['channel_address'] . '@' . get_app()->get_hostname();
$signed_text = $datarray['mid'] . ';' . $parent_item['mid'] . ';' . $signed_body . ';' . $diaspora_handle;
if( $uprvkey !== false )
$authorsig = base64_encode(rsa_sign($signed_text,$channel['channel_prvkey'],'sha256'));
else
$authorsig = '';
$x = array('signer' => $diaspora_handle, 'body' => $signed_body, 'signed_text' => $signed_text, 'signature' => base64_encode($authorsig));
$key = get_config('system','pubkey');
$y = crypto_encapsulate(json_encode($x),$key);
$r = q("update item set diaspora_meta = '%s' where id = %d limit 1",
dbesc(json_encode($y)),
intval($post_id)
);
$r = q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
intval($post_id),
dbesc($signed_text),
dbesc(base64_encode($authorsig)),
dbesc($diaspora_handle)
);
if(! $r)
logger('store_diaspora_comment_sig: DB write failed');
return;
}
function send_status_notifications($post_id,$item) {
$notify = false;
$parent = 0;
$r = q("select channel_hash from channel where channel_id = %d limit 1",
intval($item['uid'])
);
if(! $r)
return;
// my own post - no notification needed
if($item['author_xchan'] === $r[0]['channel_hash'])
return;
// I'm the owner - notify me
if($item['owner_hash'] === $r[0]['channel_hash'])
$notify = true;
// Was I involved in this conversation?
$x = q("select * from item where parent_mid = '%s' and uid = %d",
dbesc($item['parent_mid']),
intval($item['uid'])
);
if($x) {
foreach($x as $xx) {
if($xx['author_xchan'] === $r[0]['channel_hash']) {
$notify = true;
}
if($xx['id'] == $xx['parent']) {
$parent = $xx['parent'];
}
}
}
$link = get_app()->get_baseurl() . '/display/' . $item['mid'];
$y = q("select id from notify where link = '%s' and uid = %d limit 1",
dbesc($link),
intval($item['uid'])
);
if($y)
$notify = false;
if(! $notify)
return;
require_once('include/enotify.php');
notification(array(
'type' => NOTIFY_COMMENT,
'from_xchan' => $item['author_xchan'],
'to_xchan' => $r[0]['channel_hash'],
'item' => $item,
'link' => $link,
'verb' => ACTIVITY_POST,
'otype' => 'item',
'parent' => $parent,
'parent_mid' => $item['parent_mid']
));
return;
}
function get_item_contact($item,$contacts) {
if(! count($contacts) || (! is_array($item)))
return false;
foreach($contacts as $contact) {
if($contact['id'] == $item['contact-id']) {
return $contact;
break; // NOTREACHED
}
}
return false;
}
function tag_deliver($uid,$item_id) {
// Called when we deliver things that might be tagged in ways that require delivery processing.
// Handles community tagging of posts and also look for mention tags
// and sets up a second delivery chain if appropriate
$a = get_app();
$mention = false;
/**
* Fetch stuff we need - a channel and an item
*/
$u = q("select * from channel where channel_id = %d limit 1",
intval($uid)
);
if(! $u)
return;
$i = q("select * from item where id = %d and uid = %d limit 1",
intval($item_id),
intval($uid)
);
if(! $i)
return;
$i = fetch_post_tags($i);
$item = $i[0];
if(($item['source_xchan']) && ($item['item_flags'] & ITEM_UPLINK)
&& ($item['item_flags'] & ITEM_THREAD_TOP) && ($item['edited'] != $item['created'])) {
// this is an update (edit) to a post which was already processed by us and has a second delivery chain
// Just start the second delivery chain to deliver the updated post
proc_run('php','include/notifier.php','tgroup',$item['id']);
return;
}
/**
* Seems like a good place to plug in a poke notification.
*/
if (stristr($item['verb'],ACTIVITY_POKE)) {
$poke_notify = true;
if(($item['obj_type'] == "") || ($item['obj_type'] !== ACTIVITY_OBJ_PERSON) || (! $item['object']))
$poke_notify = false;
$obj = json_decode_plus($item['object']);
if($obj) {
if($obj['id'] !== $u[0]['channel_hash'])
$poke_notify = false;
}
$verb = urldecode(substr($item['verb'],strpos($item['verb'],'#')+1));
if($poke_notify) {
require_once('include/enotify.php');
notification(array(
'to_xchan' => $u[0]['channel_hash'],
'from_xchan' => $item['author_xchan'],
'type' => NOTIFY_POKE,
'item' => $item,
'link' => $i[0]['llink'],
'verb' => ACTIVITY_POKE,
'activity' => $verb,
'otype' => 'item'
));
}
}
/**
* Do community tagging
*/
if($item['obj_type'] === ACTIVITY_OBJ_TAGTERM) {
// We received a community tag activity for a post.
// See if we are the owner of the parent item and have given permission to tag our posts.
// If so tag the parent post.
logger('tag_deliver: community tag activity received');
if(($item['owner_xchan'] === $u[0]['channel_hash']) && (! get_pconfig($u[0]['channel_id'],'system','blocktags'))) {
logger('tag_deliver: community tag recipient: ' . $u[0]['channel_name']);
$j_tgt = json_decode_plus($item['target']);
if($j_tgt && $j_tgt['id']) {
$p = q("select * from item where mid = '%s' and uid = %d limit 1",
dbesc($j_tgt['id']),
intval($u[0]['channel_id'])
);
if($p) {
$j_obj = json_decode_plus($item['object']);
logger('tag_deliver: tag object: ' . print_r($j_obj,true), LOGGER_DATA);
if($j_obj && $j_obj['id'] && $j_obj['title']) {
if(is_array($j_obj['link']))
$taglink = get_rel_link($j_obj['link'],'alternate');
store_item_tag($u[0]['channel_id'],$p[0]['id'],TERM_OBJ_POST,TERM_HASHTAG,$j_obj['title'],$j_obj['id']);
$x = q("update item set edited = '%s', received = '%s', changed = '%s' where mid = '%s' and uid = %d limit 1",
dbesc(datetime_convert()),
dbesc(datetime_convert()),
dbesc(datetime_convert()),
dbesc($j_tgt['id']),
intval($u[0]['channel_id'])
);
proc_run('php','include/notifier.php','edit_post',$p[0]['id']);
}
}
}
}
else
logger('tag_deliver: tag permission denied for ' . $u[0]['channel_address']);
}
/**
* A "union" is a message which our channel has sourced from another channel.
* This sets up a second delivery chain just like forum tags do.
* Find out if this is a source-able post.
*/
$union = check_item_source($uid,$item);
if($union)
logger('check_item_source returns true');
// This might be a followup (e.g. comment) by the original post author to a tagged forum
// If so setup a second delivery chain
if( ! ($item['item_flags'] & ITEM_THREAD_TOP)) {
$x = q("select * from item where id = parent and parent = %d and uid = %d limit 1",
intval($item['parent']),
intval($uid)
);
if(($x) && ($x[0]['item_flags'] & ITEM_UPLINK)) {
start_delivery_chain($u[0],$item,$item_id,$x[0]);
}
}
/**
* Now we've got those out of the way. Let's see if this is a post that's tagged for re-delivery
*/
$terms = get_terms_oftype($item['term'],TERM_MENTION);
if($terms)
logger('tag_deliver: post mentions: ' . print_r($terms,true), LOGGER_DATA);
$link = normalise_link($a->get_baseurl() . '/channel/' . $u[0]['channel_address']);
if($terms) {
foreach($terms as $term) {
if(link_compare($term['url'],$link)) {
$mention = true;
break;
}
}
}
if($mention) {
logger('tag_deliver: mention found for ' . $u[0]['channel_name']);
$r = q("update item set item_flags = ( item_flags | %d ) where id = %d limit 1",
intval(ITEM_MENTIONSME),
intval($item_id)
);
// At this point we've determined that the person receiving this post was mentioned in it or it is a union.
// Now let's check if this mention was inside a reshare so we don't spam a forum
// If it's private we may have to unobscure it momentarily so that we can parse it.
$body = '';
if($item['item_flags'] & ITEM_OBSCURED) {
$key = get_config('system','prvkey');
if($item['body'])
$body = crypto_unencapsulate(json_decode_plus($item['body']),$key);
}
else
$body = $item['body'];
$body = preg_replace('/\[share(.*?)\[\/share\]/','',$body);
$tagged = false;
$plustagged = false;
$pattern = '/@\!?\[zrl\=' . preg_quote($term['url'],'/') . '\]' . preg_quote($term['term'],'/') . '\[\/zrl\]/';
if(preg_match($pattern,$body,$matches))
$tagged = true;
$pattern = '/@\!?\[zrl\=' . preg_quote($term['url'],'/') . '\]' . preg_quote($term['term'] . '+','/') . '\[\/zrl\]/';
if(preg_match($pattern,$body,$matches))
$plustagged = true;
if(! ($tagged || $plustagged)) {
logger('tag_deliver: mention was in a reshare - ignoring');
return;
}
$arr = array('channel_id' => $uid, 'item' => $item, 'body' => $body);
call_hooks('tagged',$arr);
/**
* Kill two birds with one stone. As long as we're here, send a mention notification.
*/
require_once('include/enotify.php');
notification(array(
'to_xchan' => $u[0]['channel_hash'],
'from_xchan' => $item['author_xchan'],
'type' => NOTIFY_TAGSELF,
'item' => $item,
'link' => $i[0]['llink'],
'verb' => ACTIVITY_TAG,
'otype' => 'item'
));
// Just a normal tag?
if(! $plustagged) {
logger('tag_deliver: not a plus tag', LOGGER_DEBUG);
return;
}
// plustagged - keep going, next check permissions
if(! perm_is_allowed($uid,$item['author_xchan'],'tag_deliver')) {
logger('tag_delivery denied for uid ' . $uid . ' and xchan ' . $item['author_xchan']);
return;
}
}
if((! $mention) && (! $union)) {
logger('tag_deliver: no mention and no union.');
return;
}
// tgroup delivery - setup a second delivery chain
// prevent delivery looping - only proceed
// if the message originated elsewhere and is a top-level post
if(($item['item_flags'] & ITEM_WALL)
|| ($item['item_flags'] & ITEM_ORIGIN)
|| (!($item['item_flags'] & ITEM_THREAD_TOP))
|| ($item['id'] != $item['parent'])) {
logger('tag_deliver: item was local or a comment. rejected.');
return;
}
logger('tag_deliver: creating second delivery chain.');
start_delivery_chain($u[0],$item,$item_id,null);
}
/**
* @function tgroup_check($uid,$item)
*
* This function is called pre-deliver to see if a post matches the criteria to be tag delivered.
* We don't actually do anything except check that it matches the criteria.
* This is so that the channel with tag_delivery enabled can receive the post even if they turn off
* permissions for the sender to send their stream. tag_deliver() can't be called until the post is actually stored.
* By then it would be too late to reject it.
*/
function tgroup_check($uid,$item) {
$a = get_app();
$mention = false;
// check that the message originated elsewhere and is a top-level post
// or is a followup and we have already accepted the top level post as an uplink
if($item['mid'] != $item['parent_mid']) {
$r = q("select id from item where mid = '%s' and uid = %d and ( item_flags & %d ) limit 1",
dbesc($item['parent_mid']),
intval($uid),
intval(ITEM_UPLINK)
);
if($r)
return true;
return false;
}
if(! perm_is_allowed($uid,$item['author_xchan'],'tag_deliver'))
return false;
$u = q("select * from channel where channel_id = %d limit 1",
intval($uid)
);
if(! $u)
return false;
$terms = get_terms_oftype($item['term'],TERM_MENTION);
if($terms)
logger('tgroup_check: post mentions: ' . print_r($terms,true), LOGGER_DATA);
$link = normalise_link($a->get_baseurl() . '/channel/' . $u[0]['channel_address']);
if($terms) {
foreach($terms as $term) {
if(link_compare($term['url'],$link)) {
$mention = true;
break;
}
}
}
if($mention) {
logger('tgroup_check: mention found for ' . $u[0]['channel_name']);
}
else
return false;
// At this point we've determined that the person receiving this post was mentioned in it.
// Now let's check if this mention was inside a reshare so we don't spam a forum
$body = preg_replace('/\[share(.*?)\[\/share\]/','',$item['body']);
$pattern = '/@\!?\[zrl\=' . preg_quote($term['url'],'/') . '\]' . preg_quote($term['term'] . '+','/') . '\[\/zrl\]/';
if(! preg_match($pattern,$body,$matches)) {
logger('tgroup_check: mention was in a reshare - ignoring');
return false;
}
return true;
}
/**
* Sourced and tag-delivered posts are re-targetted for delivery to the connections of the channel
* receiving the post. This starts the second delivery chain, by resetting permissions and ensuring
* that ITEM_UPLINK is set on the parent post, and storing the current owner_xchan as the source_xchan.
* We'll become the new owner. If called without $parent, this *is* the parent post.
*/
function start_delivery_chain($channel,$item,$item_id,$parent) {
// Change this copy of the post to a forum head message and deliver to all the tgroup members
// also reset all the privacy bits to the forum default permissions
$private = (($channel['channel_allow_cid'] || $channel['channel_allow_gid']
|| $channel['channel_deny_cid'] || $channel['channel_deny_gid']) ? 1 : 0);
$new_public_policy = map_scope($channel['channel_r_stream'],true);
if((! $private) && $new_public_policy)
$private = 1;
$flag_bits = $item['item_flags'] | ITEM_WALL|ITEM_ORIGIN;
// unset the nocomment bit if it's there.
if($flag_bits & ITEM_NOCOMMENT)
$flag_bits = $flag_bits ^ ITEM_NOCOMMENT;
// maintain the original source, which will be the original item owner and was stored in source_xchan
// when we created the delivery fork
if($parent) {
$r = q("update item set source_xchan = '%s' where id = %d limit 1",
dbesc($parent['source_xchan']),
intval($item_id)
);
}
else {
$flag_bits = $flag_bits | ITEM_UPLINK;
$r = q("update item set source_xchan = owner_xchan where id = %d limit 1",
intval($item_id)
);
}
$title = $item['title'];
$body = $item['body'];
if($private) {
if(!($flag_bits & ITEM_OBSCURED)) {
$key = get_config('system','pubkey');
$flag_bits = $flag_bits|ITEM_OBSCURED;
if($title)
$title = json_encode(crypto_encapsulate($title,$key));
if($body)
$body = json_encode(crypto_encapsulate($body,$key));
}
}
else {
if($flag_bits & ITEM_OBSCURED) {
$key = get_config('system','prvkey');
$flag_bits = $flag_bits ^ ITEM_OBSCURED;
if($title)
$title = crypto_unencapsulate(json_decode($title,true),$key);
if($body)
$body = crypto_unencapsulate(json_decode($body,true),$key);
}
}
$r = q("update item set item_flags = %d, owner_xchan = '%s', allow_cid = '%s', allow_gid = '%s',
deny_cid = '%s', deny_gid = '%s', item_private = %d, public_policy = '%s', comment_policy = '%s', title = '%s', body = '%s' where id = %d limit 1",
intval($flag_bits),
dbesc($channel['channel_hash']),
dbesc($channel['channel_allow_cid']),
dbesc($channel['channel_allow_gid']),
dbesc($channel['channel_deny_cid']),
dbesc($channel['channel_deny_gid']),
intval($private),
dbesc($new_public_policy),
dbesc(map_scope($channel['channel_w_comment'])),
dbesc($title),
dbesc($body),
intval($item_id)
);
if($r)
proc_run('php','include/notifier.php','tgroup',$item_id);
else
logger('start_delivery_chain: failed to update item');
return;
}
/**
* @function check_item_source($uid,$item)
* @param $uid
* @param $item
*
* @description
* Checks to see if this item owner is referenced as a source for this channel and if the post
* matches the rules for inclusion in this channel. Returns true if we should create a second delivery
* chain and false if none of the rules apply, or if the item is private.
*/
function check_item_source($uid,$item) {
$r = q("select * from source where src_channel_id = %d and ( src_xchan = '%s' || src_xchan = '*' ) limit 1",
intval($uid),
dbesc(($item['source_xchan']) ? $item['source_xchan'] : $item['owner_xchan'])
);
if(! $r)
return false;
$x = q("select abook_their_perms, abook_flags from abook where abook_channel = %d and abook_xchan = '%s' limit 1",
intval($uid),
dbesc($item['owner_xchan'])
);
if(! $x)
return false;
if(! ($x[0]['abook_their_perms'] & PERMS_A_REPUBLISH))
return false;
if($item['item_private'] && (! ($x[0]['abook_flags'] & ABOOK_FLAG_FEED)))
return false;
if($r[0]['src_channel_xchan'] === $item['owner_xchan'])
return false;
if(! $r[0]['src_patt'])
return true;
require_once('include/html2plain.php');
$text = prepare_text($item['body'],$item['mimetype']);
$text = html2plain($text);
$tags = ((count($items['term'])) ? $items['term'] : false);
$words = explode("\n",$r[0]['src_patt']);
if($words) {
foreach($words as $word) {
if(substr($word,0,1) === '#' && $tags) {
foreach($tags as $t)
if(($t['type'] == TERM_HASHTAG) && ((substr($t,1) === substr($word,1)) || (substr($word,1) === '*')))
return true;
}
if(stristr($text,$word) !== false)
return true;
}
}
return false;
}
function mail_store($arr) {
if(! $arr['channel_id']) {
logger('mail_store: no uid');
return 0;
}
if((strpos($arr['body'],'<') !== false) || (strpos($arr['body'],'>') !== false))
$arr['body'] = escape_tags($arr['body']);
if(array_key_exists('attach',$arr) && is_array($arr['attach']))
$arr['attach'] = json_encode($arr['attach']);
$arr['account_id'] = ((x($arr,'account_id')) ? intval($arr['account_id']) : 0);
$arr['mid'] = ((x($arr,'mid')) ? notags(trim($arr['mid'])) : random_string());
$arr['from_xchan'] = ((x($arr,'from_xchan')) ? notags(trim($arr['from_xchan'])) : '');
$arr['to_xchan'] = ((x($arr,'to_xchan')) ? notags(trim($arr['to_xchan'])) : '');
$arr['created'] = ((x($arr,'created') !== false) ? datetime_convert('UTC','UTC',$arr['created']) : datetime_convert());
$arr['expires'] = ((x($arr,'expires') !== false) ? datetime_convert('UTC','UTC',$arr['expires']) : NULL_DATE);
$arr['title'] = ((x($arr,'title')) ? notags(trim($arr['title'])) : '');
$arr['parent_mid'] = ((x($arr,'parent_mid')) ? notags(trim($arr['parent_mid'])) : '');
$arr['body'] = ((x($arr,'body')) ? trim($arr['body']) : '');
$arr['mail_flags'] = ((x($arr,'mail_flags')) ? intval($arr['mail_flags']) : 0 );
if(! $arr['parent_mid']) {
logger('mail_store: missing parent');
$arr['parent_mid'] = $arr['mid'];
}
$r = q("SELECT `id` FROM mail WHERE `mid` = '%s' AND channel_id = %d LIMIT 1",
dbesc($arr['mid']),
intval($arr['channel_id'])
);
if($r) {
logger('mail_store: duplicate item ignored. ' . print_r($arr,true));
return 0;
}
call_hooks('post_mail',$arr);
if(x($arr,'cancel')) {
logger('mail_store: post cancelled by plugin.');
return 0;
}
dbesc_array($arr);
logger('mail_store: ' . print_r($arr,true), LOGGER_DATA);
$r = dbq("INSERT INTO mail (`"
. implode("`, `", array_keys($arr))
. "`) VALUES ('"
. implode("', '", array_values($arr))
. "')" );
// find the item we just created
$r = q("SELECT `id` FROM mail WHERE `mid` = '%s' AND `channel_id` = %d ORDER BY `id` ASC ",
$arr['mid'], // already dbesc'd
intval($arr['channel_id'])
);
if($r) {
$current_post = $r[0]['id'];
logger('mail_store: created item ' . $current_post, LOGGER_DEBUG);
$arr['id'] = $current_post; // for notification
}
else {
logger('mail_store: could not locate created item');
return 0;
}
if(count($r) > 1) {
logger('mail_store: duplicated post occurred. Removing duplicates.');
q("DELETE FROM mail WHERE `mid` = '%s' AND `channel_id` = %d AND `id` != %d ",
$arr['mid'],
intval($arr['channel_id']),
intval($current_post)
);
}
else {
require_once('include/enotify.php');
$notif_params = array(
'from_xchan' => $arr['from_xchan'],
'to_xchan' => $arr['to_xchan'],
'type' => NOTIFY_MAIL,
'item' => $arr,
'verb' => ACTIVITY_POST,
'otype' => 'mail'
);
notification($notif_params);
}
call_hooks('post_mail_end',$arr);
return $current_post;
}
/**
*
* consume_feed - process atom feed and update anything/everything we might need to update
*
* $xml = the (atom) feed to consume - RSS isn't as fully supported but may work for simple feeds.
*
* $importer = the contact_record (joined to user_record) of the local user who owns this relationship.
* It is this person's stuff that is going to be updated.
* $contact = the person who is sending us stuff. If not set, we MAY be processing a "follow" activity
* from an external network and MAY create an appropriate contact record. Otherwise, we MUST
* have a contact record.
* $hub = should we find a hub declation in the feed, pass it back to our calling process, who might (or
* might not) try and subscribe to it.
* $datedir sorts in reverse order
* $pass - by default ($pass = 0) we cannot guarantee that a parent item has been
* imported prior to its children being seen in the stream unless we are certain
* of how the feed is arranged/ordered.
* With $pass = 1, we only pull parent items out of the stream.
* With $pass = 2, we only pull children (comments/likes).
*
* So running this twice, first with pass 1 and then with pass 2 will do the right
* thing regardless of feed ordering. This won't be adequate in a fully-threaded
* model where comments can have sub-threads. That would require some massive sorting
* to get all the feed items into a mostly linear ordering, and might still require
* recursion.
*/
function consume_feed($xml,$importer,&$contact,$pass = 0) {
require_once('library/simplepie/simplepie.inc');
if(! strlen($xml)) {
logger('consume_feed: empty input');
return;
}
$feed = new SimplePie();
$feed->set_raw_data($xml);
$feed->init();
if($feed->error())
logger('consume_feed: Error parsing XML: ' . $feed->error());
$permalink = $feed->get_permalink();
// Check at the feed level for updated contact name and/or photo
// process any deleted entries
$del_entries = $feed->get_feed_tags(NAMESPACE_TOMB, 'deleted-entry');
if(is_array($del_entries) && count($del_entries) && $pass != 2) {
foreach($del_entries as $dentry) {
$deleted = false;
if(isset($dentry['attribs']['']['ref'])) {
$mid = $dentry['attribs']['']['ref'];
$deleted = true;
if(isset($dentry['attribs']['']['when'])) {
$when = $dentry['attribs']['']['when'];
$when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
}
else
$when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
}
if($deleted && is_array($contact)) {
$r = q("SELECT * from item where mid = '%s' and author_xchan = '%s' and uid = %d limit 1",
dbesc(base64url_encode($mid)),
dbesc($contact['xchan_hash']),
intval($importer['channel_id'])
);
if($r) {
$item = $r[0];
if(! ($item['item_restrict'] & ITEM_DELETED)) {
logger('consume_feed: deleting item ' . $item['id'] . ' mid=' . base64url_decode($item['mid']), LOGGER_DEBUG);
drop_item($item['id'],false);
}
}
}
}
}
// Now process the feed
if($feed->get_item_quantity()) {
logger('consume_feed: feed item count = ' . $feed->get_item_quantity(), LOGGER_DEBUG);
$items = $feed->get_items();
foreach($items as $item) {
$is_reply = false;
$item_id = base64url_encode($item->get_id());
logger('consume_feed: processing ' . $item_id, LOGGER_DEBUG);
$rawthread = $item->get_item_tags( NAMESPACE_THREAD,'in-reply-to');
if(isset($rawthread[0]['attribs']['']['ref'])) {
$is_reply = true;
$parent_mid = base64url_encode($rawthread[0]['attribs']['']['ref']);
}
if($is_reply) {
if($pass == 1)
continue;
// Have we seen it? If not, import it.
$item_id = base64url_encode($item->get_id());
$author = array();
$datarray = get_atom_elements($feed,$item,$author);
if(! x($author,'author_name'))
$author['author_name'] = $contact['xchan_name'];
if(! x($author,'author_link'))
$author['author_link'] = $contact['xchan_url'];
if(! x($author,'author_photo'))
$author['author_photo'] = $contact['xchan_photo_m'];
$datarray['author_xchan'] = '';
if($author['author_link'] != $contact['xchan_url']) {
$x = import_author_unkown(array('name' => $author['author_name'],'url' => $author['author_link'],'photo' => array('src' => $author['author_photo'])));
if($x)
$datarray['author_xchan'] = $x;
}
if(! $datarray['author_xchan'])
$datarray['author_xchan'] = $contact['xchan_hash'];
$datarray['owner_xchan'] = $contact['xchan_hash'];
$r = q("SELECT edited FROM item WHERE mid = '%s' AND uid = %d LIMIT 1",
dbesc($item_id),
intval($importer['channel_id'])
);
// Update content if 'updated' changes
if($r) {
if((x($datarray,'edited') !== false)
&& (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
// do not accept (ignore) an earlier edit than one we currently have.
if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited'])
continue;
update_feed_item($importer['channel_id'],$datarray);
}
continue;
}
$datarray['parent_mid'] = $parent_mid;
$datarray['uid'] = $importer['channel_id'];
logger('consume_feed: ' . print_r($datarray,true),LOGGER_DATA);
$xx = item_store($datarray);
$r = $xx['item_id'];
continue;
}
else {
// Head post of a conversation. Have we seen it? If not, import it.
$item_id = base64url_encode($item->get_id());
$author = array();
$datarray = get_atom_elements($feed,$item,$author);
if(is_array($contact)) {
if(! x($author,'author_name'))
$author['author_name'] = $contact['xchan_name'];
if(! x($author,'author_link'))
$author['author_link'] = $contact['xchan_url'];
if(! x($author,'author_photo'))
$author['author_photo'] = $contact['xchan_photo_m'];
}
if((! x($author,'author_name')) || (! x($author,'author_link'))) {
logger('consume_feed: no author information! ' . print_r($author,true));
continue;
}
$datarray['author_xchan'] = '';
if($author['author_link'] != $contact['xchan_url']) {
$x = import_author_unknown(array('name' => $author['author_name'],'url' => $author['author_link'],'photo' => array('src' => $author['author_photo'])));
if($x)
$datarray['author_xchan'] = $x;
}
if(! $datarray['author_xchan'])
$datarray['author_xchan'] = $contact['xchan_hash'];
$datarray['owner_xchan'] = $contact['xchan_hash'];
$r = q("SELECT edited FROM item WHERE mid = '%s' AND uid = %d LIMIT 1",
dbesc($item_id),
intval($importer['channel_id'])
);
// Update content if 'updated' changes
if($r) {
if((x($datarray,'edited') !== false)
&& (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
// do not accept (ignore) an earlier edit than one we currently have.
if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited'])
continue;
update_feed_item($importer['channel_id'],$datarray);
}
continue;
}
$datarray['parent_mid'] = $item_id;
$datarray['uid'] = $importer['channel_id'];
if(! link_compare($author['owner_link'],$contact['xchan_url'])) {
logger('consume_feed: Correcting item owner.', LOGGER_DEBUG);
$author['owner_name'] = $contact['name'];
$author['owner_link'] = $contact['url'];
$author['owner_avatar'] = $contact['thumb'];
}
logger('consume_feed: author ' . print_r($author,true),LOGGER_DEBUG);
logger('consume_feed: ' . print_r($datarray,true),LOGGER_DATA);
$xx = item_store($datarray);
$r = $xx['item_id'];
continue;
}
}
}
}
function update_feed_item($uid,$datarray) {
logger('update_feed_item: not implemented! ' . $uid . ' ' . print_r($datarray,true), LOGGER_DATA);
}
function handle_feed($uid,$abook_id,$url) {
require_once('include/Contact.php');
$channel = channelx_by_n($uid);
if(! $channel)
return;
$x = q("select * from abook left join xchan on abook_xchan = xchan_hash where abook_id = %d and abook_channel = %d limit 1",
dbesc($abook_id),
intval($uid)
);
$recurse = 0;
$z = z_fetch_url($url,false,$recurse,array('novalidate' => true));
//logger('handle_feed:' . print_r($z,true));
if($z['success']) {
consume_feed($z['body'],$channel,$x[0],0);
consume_feed($z['body'],$channel,$x[0],1);
}
}
function atom_author($tag,$name,$uri,$h,$w,$type,$photo) {
$o = '';
if(! $tag)
return $o;
$name = xmlify($name);
$uri = xmlify($uri);
$h = intval($h);
$w = intval($w);
$photo = xmlify($photo);
$o .= "<$tag>\r\n";
$o .= "<name>$name</name>\r\n";
$o .= "<uri>$uri</uri>\r\n";
$o .= '<link rel="photo" type="' . $type . '" media:width="' . $w . '" media:height="' . $h . '" href="' . $photo . '" />' . "\r\n";
$o .= '<link rel="avatar" type="' . $type . '" media:width="' . $w . '" media:height="' . $h . '" href="' . $photo . '" />' . "\r\n";
call_hooks('atom_author', $o);
$o .= "</$tag>\r\n";
return $o;
}
function atom_entry($item,$type,$author,$owner,$comment = false,$cid = 0) {
$a = get_app();
if(! $item['parent'])
return;
if($item['deleted'])
return '<at:deleted-entry ref="' . xmlify($item['mid']) . '" when="' . xmlify(datetime_convert('UTC','UTC',$item['edited'] . '+00:00',ATOM_TIME)) . '" />' . "\r\n";
if($item['allow_cid'] || $item['allow_gid'] || $item['deny_cid'] || $item['deny_gid'])
$body = fix_private_photos($item['body'],$owner['uid'],$item,$cid);
else
$body = $item['body'];
$o = "\r\n\r\n<entry>\r\n";
if(is_array($author))
$o .= atom_author('author',$author['xchan_name'],$author['xchan_url'],80,80,$author['xchan_photo_mimetype'],$author['xchan_photo_m']);
else
$o .= atom_author('author',$item['author']['xchan_name'],$item['author']['xchan_url'],80,80,$item['author']['xchan_photo_mimetype'], $item['author']['xchan_photo_m']);
$o .= atom_author('zot:owner',$item['owner']['xchan_name'],$item['owner']['xchan_url'],80,80,$item['owner']['xchan_photo_mimetype'],$item['owner']['xchan_photo_m']);
if(($item['parent'] != $item['id']) || ($item['parent_mid'] !== $item['mid']) || (($item['thr_parent'] !== '') && ($item['thr_parent'] !== $item['mid']))) {
$parent_item = (($item['thr_parent']) ? $item['thr_parent'] : $item['parent_mid']);
$o .= '<thr:in-reply-to ref="' . xmlify($parent_item) . '" type="text/html" href="' . xmlify($item['plink']) . '" />' . "\r\n";
}
$o .= '<id>' . xmlify($item['mid']) . '</id>' . "\r\n";
$o .= '<title>' . xmlify($item['title']) . '</title>' . "\r\n";
$o .= '<published>' . xmlify(datetime_convert('UTC','UTC',$item['created'] . '+00:00',ATOM_TIME)) . '</published>' . "\r\n";
$o .= '<updated>' . xmlify(datetime_convert('UTC','UTC',$item['edited'] . '+00:00',ATOM_TIME)) . '</updated>' . "\r\n";
$o .= '<content type="' . $type . '" >' . xmlify(prepare_text($body,$item['mimetype'])) . '</content>' . "\r\n";
$o .= '<link rel="alternate" type="text/html" href="' . xmlify($item['plink']) . '" />' . "\r\n";
if($item['location']) {
$o .= '<zot:location>' . xmlify($item['location']) . '</zot:location>' . "\r\n";
$o .= '<poco:address><poco:formatted>' . xmlify($item['location']) . '</poco:formatted></poco:address>' . "\r\n";
}
if($item['coord'])
$o .= '<georss:point>' . xmlify($item['coord']) . '</georss:point>' . "\r\n";
if(($item['item_private']) || strlen($item['allow_cid']) || strlen($item['allow_gid']) || strlen($item['deny_cid']) || strlen($item['deny_gid']))
$o .= '<zot:private>' . (($item['item_private']) ? $item['item_private'] : 1) . '</zot:private>' . "\r\n";
if($item['app'])
$o .= '<statusnet:notice_info local_id="' . $item['id'] . '" source="' . xmlify($item['app']) . '" ></statusnet:notice_info>' . "\r\n";
$verb = construct_verb($item);
$o .= '<as:verb>' . xmlify($verb) . '</as:verb>' . "\r\n";
$actobj = construct_activity_object($item);
if(strlen($actobj))
$o .= $actobj;
$actarg = construct_activity_target($item);
if(strlen($actarg))
$o .= $actarg;
// FIXME
// $tags = item_getfeedtags($item);
// if(count($tags)) {
// foreach($tags as $t) {
// $o .= '<category scheme="X-DFRN:' . xmlify($t[0]) . ':' . xmlify($t[1]) . '" term="' . xmlify($t[2]) . '" />' . "\r\n";
// }
// }
// FIXME
// $o .= item_getfeedattach($item);
// $mentioned = get_mentions($item,$tags);
// if($mentioned)
// $o .= $mentioned;
call_hooks('atom_entry', $o);
$o .= '</entry>' . "\r\n";
return $o;
}
function fix_private_photos($s, $uid, $item = null, $cid = 0) {
$a = get_app();
logger('fix_private_photos', LOGGER_DEBUG);
$site = substr($a->get_baseurl(),strpos($a->get_baseurl(),'://'));
$orig_body = $s;
$new_body = '';
$img_start = strpos($orig_body, '[zmg');
$img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
$img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/zmg]') : false);
while( ($img_st_close !== false) && ($img_len !== false) ) {
$img_st_close++; // make it point to AFTER the closing bracket
$image = substr($orig_body, $img_start + $img_st_close, $img_len);
logger('fix_private_photos: found photo ' . $image, LOGGER_DEBUG);
if(stristr($image , $site . '/photo/')) {
// Only embed locally hosted photos
$replace = false;
$i = basename($image);
$x = strpos($i,'-');
if($x) {
$res = substr($i,$x+1);
$i = substr($i,0,$x);
$r = q("SELECT * FROM `photo` WHERE `resource_id` = '%s' AND `scale` = %d AND `uid` = %d",
dbesc($i),
intval($res),
intval($uid)
);
if(count($r)) {
// Check to see if we should replace this photo link with an embedded image
// 1. No need to do so if the photo is public
// 2. If there's a contact-id provided, see if they're in the access list
// for the photo. If so, embed it.
// 3. Otherwise, if we have an item, see if the item permissions match the photo
// permissions, regardless of order but first check to see if they're an exact
// match to save some processing overhead.
if(has_permissions($r[0])) {
if($cid) {
$recips = enumerate_permissions($r[0]);
if(in_array($cid, $recips)) {
$replace = true;
}
}
elseif($item) {
if(compare_permissions($item,$r[0]))
$replace = true;
}
}
if($replace) {
$data = $r[0]['data'];
$type = $r[0]['type'];
// If a custom width and height were specified, apply before embedding
if(preg_match("/\[zmg\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
logger('fix_private_photos: scaling photo', LOGGER_DEBUG);
$width = intval($match[1]);
$height = intval($match[2]);
$ph = photo_factory($data, $type);
if($ph->is_valid()) {
$ph->scaleImage(max($width, $height));
$data = $ph->imageString();
$type = $ph->getType();
}
}
logger('fix_private_photos: replacing photo', LOGGER_DEBUG);
$image = 'data:' . $type . ';base64,' . base64_encode($data);
logger('fix_private_photos: replaced: ' . $image, LOGGER_DATA);
}
}
}
}
$new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/zmg]';
$orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/zmg]'));
if($orig_body === false)
$orig_body = '';
$img_start = strpos($orig_body, '[zmg');
$img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
$img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/zmg]') : false);
}
$new_body = $new_body . $orig_body;
return($new_body);
}
function has_permissions($obj) {
if(($obj['allow_cid'] != '') || ($obj['allow_gid'] != '') || ($obj['deny_cid'] != '') || ($obj['deny_gid'] != ''))
return true;
return false;
}
function compare_permissions($obj1,$obj2) {
// first part is easy. Check that these are exactly the same.
if(($obj1['allow_cid'] == $obj2['allow_cid'])
&& ($obj1['allow_gid'] == $obj2['allow_gid'])
&& ($obj1['deny_cid'] == $obj2['deny_cid'])
&& ($obj1['deny_gid'] == $obj2['deny_gid']))
return true;
// This is harder. Parse all the permissions and compare the resulting set.
$recipients1 = enumerate_permissions($obj1);
$recipients2 = enumerate_permissions($obj2);
sort($recipients1);
sort($recipients2);
if($recipients1 == $recipients2)
return true;
return false;
}
// returns an array of contact-ids that are allowed to see this object
function enumerate_permissions($obj) {
require_once('include/group.php');
$allow_people = expand_acl($obj['allow_cid']);
$allow_groups = expand_groups(expand_acl($obj['allow_gid']));
$deny_people = expand_acl($obj['deny_cid']);
$deny_groups = expand_groups(expand_acl($obj['deny_gid']));
$recipients = array_unique(array_merge($allow_people,$allow_groups));
$deny = array_unique(array_merge($deny_people,$deny_groups));
$recipients = array_diff($recipients,$deny);
return $recipients;
}
function item_getfeedtags($item) {
$terms = get_terms_oftype($item['term'],array(TERM_HASHTAG,TERM_MENTION));
$ret = array();
if(count($terms)) {
foreach($terms as $term) {
if($term['type'] == TERM_HASHTAG)
$ret[] = array('#',$term['url'],$term['term']);
else
$ret[] = array('@',$term['url'],$term['term']);
}
}
return $ret;
}
function item_getfeedattach($item) {
$ret = '';
$arr = explode(',',$item['attach']);
if(count($arr)) {
foreach($arr as $r) {
$matches = false;
$cnt = preg_match('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"\[\/attach\]|',$r,$matches);
if($cnt) {
$ret .= '<link rel="enclosure" href="' . xmlify($matches[1]) . '" type="' . xmlify($matches[3]) . '" ';
if(intval($matches[2]))
$ret .= 'length="' . intval($matches[2]) . '" ';
if($matches[4] !== ' ')
$ret .= 'title="' . xmlify(trim($matches[4])) . '" ';
$ret .= ' />' . "\r\n";
}
}
}
return $ret;
}
function item_expire($uid,$days) {
if((! $uid) || ($days < 1))
return;
// $expire_network_only = save your own wall posts
// and just expire conversations started by others
// do not enable this until we can pass bulk delete messages through zot
// $expire_network_only = get_pconfig($uid,'expire','network_only');
$expire_network_only = 1;
$sql_extra = ((intval($expire_network_only)) ? " AND not (item_flags & " . intval(ITEM_WALL) . ") " : "");
$r = q("SELECT * FROM `item`
WHERE `uid` = %d
AND `created` < UTC_TIMESTAMP() - INTERVAL %d DAY
AND `id` = `parent`
$sql_extra
AND NOT ( item_flags & %d )
AND (item_restrict = 0 ) ",
intval($uid),
intval($days),
intval(ITEM_RETAINED)
);
if(! $r)
return;
$r = fetch_post_tags($r,true);
foreach($r as $item) {
// don't expire filed items
$terms = get_terms_oftype($item['term'],TERM_FILE);
if($terms) {
retain_item($item['id']);
continue;
}
// Only expire posts, not photos and photo comments
if($item['resource_type'] === 'photo') {
retain_item($item['id']);
continue;
}
if($item['item_flags'] & ITEM_STARRED) {
retain_item($item['id']);
continue;
}
drop_item($item['id'],false);
}
// proc_run('php',"include/notifier.php","expire","$uid");
}
function retain_item($id) {
$r = q("update item set item_flags = (item_flags | %d ) where id = %d limit 1",
intval(ITEM_RETAINED),
intval($id)
);
}
function drop_items($items) {
$uid = 0;
if(! local_user() && ! remote_user())
return;
if(count($items)) {
foreach($items as $item) {
$owner = drop_item($item,false);
if($owner && ! $uid)
$uid = $owner;
}
}
// multiple threads may have been deleted, send an expire notification
if($uid)
proc_run('php',"include/notifier.php","expire","$uid");
}
// Delete item with given item $id. $interactive means we're running interactively, and must check
// permissions to carry out this act. If it is non-interactive, we are deleting something at the
// system's request and do not check permission. This is very important to know.
// Some deletion requests (those coming from remote sites) must be staged.
// $stage = 0 => unstaged
// $stage = 1 => set deleted flag on the item and perform intial notifications
// $stage = 2 => perform low level delete at a later stage
function drop_item($id,$interactive = true,$stage = DROPITEM_NORMAL) {
$a = get_app();
// locate item to be deleted
$r = q("SELECT * FROM item WHERE id = %d LIMIT 1",
intval($id)
);
if((! $r) || (($r[0]['item_restrict'] & ITEM_DELETED) && ($stage === DROPITEM_NORMAL))) {
if(! $interactive)
return 0;
notice( t('Item not found.') . EOL);
goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
}
$item = $r[0];
$ok_to_delete = false;
// system deletion
if(! $interactive)
$ok_to_delete = true;
// owner deletion
if(local_user() && local_user() == $item['uid'])
$ok_to_delete = true;
// author deletion
$observer = $a->get_observer();
if($observer && $observer['xchan_hash'] && ($observer['xchan_hash'] === $item['author_xchan']))
$ok_to_delete = true;
if($ok_to_delete) {
// set the deleted flag immediately on this item just in case the
// hook calls a remote process which loops. We'll delete it properly in a second.
$r = q("UPDATE item SET item_restrict = ( item_restrict | %d ) WHERE id = %d LIMIT 1",
intval(ITEM_DELETED),
intval($item['id'])
);
$arr = array('item' => $item, 'interactive' => $interactive, 'stage' => $stage);
call_hooks('drop_item', $arr );
$notify_id = intval($item['id']);
$items = q("select * from item where parent = %d and uid = %d",
intval($item['id']),
intval($item['uid'])
);
if($items) {
foreach($items as $i)
delete_item_lowlevel($i,$stage);
}
else
delete_item_lowlevel($item,$stage);
if(! $interactive)
return 1;
// send the notification upstream/downstream as the case may be
// only send notifications to others if this is the owner's wall item.
if(($item['item_flags'] & ITEM_WALL) && ($stage != DROPITEM_PHASE2))
proc_run('php','include/notifier.php','drop',$notify_id);
goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
}
else {
if(! $interactive)
return 0;
notice( t('Permission denied.') . EOL);
goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
}
}
// This function does not check for permission and does not send notifications and does not check recursion.
// It merely destroys all resources associated with an item.
// Please do not use without a suitable wrapper.
function delete_item_lowlevel($item,$stage = DROPITEM_NORMAL) {
switch($stage) {
case DROPITEM_PHASE2:
$r = q("UPDATE item SET item_restrict = ( item_restrict | %d ), body = '', title = '',
changed = '%s', edited = '%s' WHERE id = %d LIMIT 1",
intval(ITEM_PENDING_REMOVE),
dbesc(datetime_convert()),
dbesc(datetime_convert()),
intval($item['id'])
);
break;
case DROPITEM_PHASE1:
$r = q("UPDATE item SET item_restrict = ( item_restrict | %d ),
changed = '%s', edited = '%s' WHERE id = %d LIMIT 1",
intval(ITEM_DELETED),
dbesc(datetime_convert()),
dbesc(datetime_convert()),
intval($item['id'])
);
break;
case DROPITEM_NORMAL:
default:
$r = q("UPDATE item SET item_restrict = ( item_restrict | %d ), body = '', title = '',
changed = '%s', edited = '%s' WHERE id = %d LIMIT 1",
intval(ITEM_DELETED),
dbesc(datetime_convert()),
dbesc(datetime_convert()),
intval($item['id'])
);
break;
}
// immediately remove any undesired profile likes.
q("delete from likes where iid = %d and channel_id = %d limit 1",
intval($item['id']),
intval($item['uid'])
);
// If item is a link to a photo/event resource, nuke all the associated photos/events
// This only applies to photos uploaded from the photos page. Photos inserted into a post do not
// generate a resource_id and therefore aren't intimately linked to the item.
if(strlen($item['resource_id'])) {
if($item['resource_type'] === 'event') {
q("delete from event where event_hash = '%s' and uid = %d limit 1",
dbesc($item['resource_id']),
intval($item['uid'])
);
}
elseif($item['resource_type'] === 'photo') {
q("DELETE FROM `photo` WHERE `resource_id` = '%s' AND `uid` = %d ",
dbesc($item['resource_id']),
intval($item['uid'])
);
}
}
// network deletion request. Keep the message structure so that we can deliver delete notifications.
// Come back after several days (or perhaps a month) to do the lowlevel delete (DROPITEM_PHASE2).
if($stage == DROPITEM_PHASE1)
return true;
$r = q("delete from term where otype = %d and oid = %d limit 1",
intval(TERM_OBJ_POST),
intval($item['id'])
);
q("delete from item_id where iid = %d and uid = %d limit 1",
intval($item['id']),
intval($item['uid'])
);
q("delete from term where oid = %d and otype = %d",
intval($item['id']),
intval(TERM_OBJ_POST)
);
// FIXME remove notifications for this item
return true;
}
function first_post_date($uid,$wall = false) {
$wall_sql = (($wall) ? sprintf(" and item_flags & %d ", ITEM_WALL) : "" );
$r = q("select id, created from item
where item_restrict = %d and uid = %d and id = parent $wall_sql
order by created asc limit 1",
intval(ITEM_VISIBLE),
intval($uid)
);
if($r) {
// logger('first_post_date: ' . $r[0]['id'] . ' ' . $r[0]['created'], LOGGER_DATA);
return substr(datetime_convert('',date_default_timezone_get(),$r[0]['created']),0,10);
}
return false;
}
/**
* modified posted_dates() {below} to arrange the list in years, which we'll eventually
* use to make a menu of years with collapsible sub-menus for the months instead of the
* current flat list of all representative dates.
*/
function list_post_dates($uid,$wall) {
$dnow = datetime_convert('',date_default_timezone_get(),'now','Y-m-d');
$dthen = first_post_date($uid,$wall);
if(! $dthen)
return array();
// If it's near the end of a long month, backup to the 28th so that in
// consecutive loops we'll always get a whole month difference.
if(intval(substr($dnow,8)) > 28)
$dnow = substr($dnow,0,8) . '28';
if(intval(substr($dthen,8)) > 28)
$dnow = substr($dthen,0,8) . '28';
$ret = array();
// Starting with the current month, get the first and last days of every
// month down to and including the month of the first post
while(substr($dnow, 0, 7) >= substr($dthen, 0, 7)) {
$dyear = intval(substr($dnow,0,4));
$dstart = substr($dnow,0,8) . '01';
$dend = substr($dnow,0,8) . get_dim(intval($dnow),intval(substr($dnow,5)));
$start_month = datetime_convert('','',$dstart,'Y-m-d');
$end_month = datetime_convert('','',$dend,'Y-m-d');
$str = day_translate(datetime_convert('','',$dnow,'F'));
if(! $ret[$dyear])
$ret[$dyear] = array();
$ret[$dyear][] = array($str,$end_month,$start_month);
$dnow = datetime_convert('','',$dnow . ' -1 month', 'Y-m-d');
}
return $ret;
}
function posted_dates($uid,$wall) {
$dnow = datetime_convert('',date_default_timezone_get(),'now','Y-m-d');
$dthen = first_post_date($uid,$wall);
if(! $dthen)
return array();
// If it's near the end of a long month, backup to the 28th so that in
// consecutive loops we'll always get a whole month difference.
if(intval(substr($dnow,8)) > 28)
$dnow = substr($dnow,0,8) . '28';
if(intval(substr($dthen,8)) > 28)
$dnow = substr($dthen,0,8) . '28';
$ret = array();
// Starting with the current month, get the first and last days of every
// month down to and including the month of the first post
while(substr($dnow, 0, 7) >= substr($dthen, 0, 7)) {
$dstart = substr($dnow,0,8) . '01';
$dend = substr($dnow,0,8) . get_dim(intval($dnow),intval(substr($dnow,5)));
$start_month = datetime_convert('','',$dstart,'Y-m-d');
$end_month = datetime_convert('','',$dend,'Y-m-d');
$str = day_translate(datetime_convert('','',$dnow,'F Y'));
$ret[] = array($str,$end_month,$start_month);
$dnow = datetime_convert('','',$dnow . ' -1 month', 'Y-m-d');
}
return $ret;
}
function fetch_post_tags($items,$link = false) {
$tag_finder = array();
if($items) {
foreach($items as $item) {
if(is_array($item)) {
if(array_key_exists('item_id',$item)) {
if(! in_array($item['item_id'],$tag_finder))
$tag_finder[] = $item['item_id'];
}
else {
if(! in_array($item['id'],$tag_finder))
$tag_finder[] = $item['id'];
}
}
}
}
$tag_finder_str = implode(', ', $tag_finder);
if(strlen($tag_finder_str)) {
$tags = q("select * from term where oid in ( %s ) and otype = %d",
dbesc($tag_finder_str),
intval(TERM_OBJ_POST)
);
}
for($x = 0; $x < count($items); $x ++) {
if($tags) {
foreach($tags as $t) {
if(($link) && ($t['type'] == TERM_MENTION))
$t['url'] = chanlink_url($t['url']);
if(array_key_exists('item_id',$items[$x])) {
if($t['oid'] == $items[$x]['item_id']) {
if(! is_array($items[$x]['term']))
$items[$x]['term'] = array();
$items[$x]['term'][] = $t;
}
}
else {
if($t['oid'] == $items[$x]['id']) {
if(! is_array($items[$x]['term']))
$items[$x]['term'] = array();
$items[$x]['term'][] = $t;
}
}
}
}
}
return $items;
}
function zot_feed($uid,$observer_xchan,$mindate) {
$result = array();
$mindate = datetime_convert('UTC','UTC',$mindate);
if(! $mindate)
$mindate = NULL_DATE;
$mindate = dbesc($mindate);
logger('zot_feed: ' . $uid);
if(! perm_is_allowed($uid,$observer_xchan,'view_stream')) {
logger('zot_feed: permission denied.');
return $result;
}
if(! is_sys_channel($uid)) {
require_once('include/security.php');
$sql_extra = item_permissions_sql($uid);
}
if($mindate != NULL_DATE) {
$sql_extra .= " and ( created > '$mindate' or edited > '$mindate' ) ";
$limit = "";
}
else
$limit = " limit 0, 50 ";
$items = array();
if(is_sys_channel($uid)) {
require_once('include/security.php');
$r = q("SELECT distinct parent from item
WHERE uid != %d
and uid in (" . stream_perms_api_uids(PERMS_PUBLIC) . ") AND item_restrict = 0
AND (item_flags & %d)
and item_private = 0 $sql_extra ORDER BY created ASC $limit",
intval($uid),
intval(ITEM_WALL)
);
}
else {
$r = q("SELECT distinct parent from item
WHERE uid = %d AND item_restrict = 0
AND (item_flags & %d)
$sql_extra ORDER BY created ASC $limit",
intval($uid),
intval(ITEM_WALL)
);
}
if($r) {
$parents_str = ids_to_querystr($r,'parent');
$sys_query = ((is_sys_channel($uid)) ? $sql_extra : '');
$items = q("SELECT `item`.*, `item`.`id` AS `item_id` FROM `item`
WHERE `item`.`item_restrict` = 0
AND `item`.`parent` IN ( %s ) $sys_query ",
dbesc($parents_str)
);
}
if($items) {
xchan_query($items);
$items = fetch_post_tags($items);
require_once('include/conversation.php');
$items = conv_sort($items,'ascending');
}
else
$items = array();
logger('zot_feed: number items: ' . count($items),LOGGER_DEBUG);
foreach($items as $item)
$result[] = encode_item($item);
return $result;
}
function items_fetch($arr,$channel = null,$observer_hash = null,$client_mode = CLIENT_MODE_NORMAL,$module = 'network') {
$result = array('success' => false);
$a = get_app();
$sql_extra = '';
$sql_nets = '';
$sql_options = '';
$sql_extra2 = '';
$sql_extra3 = '';
$def_acl = '';
$item_uids = ' true ';
if ($arr['uid']) $uid= $arr['uid'];
if($channel) {
$uid = $channel['channel_id'];
$uidhash = $channel['channel_hash'];
$item_uids = " item.uid = " . intval($uid) . " ";
}
if($arr['star'])
$sql_options .= " and (item_flags & " . intval(ITEM_STARRED) . ") ";
if($arr['wall'])
$sql_options .= " and (item_flags & " . intval(ITEM_WALL) . ") ";
$sql_extra = " AND item.parent IN ( SELECT parent FROM item WHERE (item_flags & " . intval(ITEM_THREAD_TOP) . ") $sql_options ) ";
if($arr['since_id'])
$sql_extra .= " and item.id > " . $since_id . " ";
if($arr['gid'] && $uid) {
$r = q("SELECT * FROM `groups` WHERE id = %d AND uid = %d LIMIT 1",
intval($arr['group']),
intval($uid)
);
if(! $r) {
$result['message'] = t('Collection not found.');
return $result;
}
$contact_str = '';
$contacts = group_get_members($group);
if($contacts) {
foreach($contacts as $c) {
if($contact_str)
$contact_str .= ',';
$contact_str .= "'" . $c['xchan'] . "'";
}
}
else {
$contact_str = ' 0 ';
$result['message'] = t('Collection is empty.');
return $result;
}
$sql_extra = " AND item.parent IN ( SELECT DISTINCT parent FROM item WHERE true $sql_options AND (( author_xchan IN ( $contact_str ) OR owner_xchan in ( $contact_str)) or allow_gid like '" . protect_sprintf('%<' . dbesc($r[0]['hash']) . '>%') . "' ) and id = parent and item_restrict = 0 ) ";
$x = group_rec_byhash($uid,$r[0]['hash']);
$result['headline'] = sprintf( t('Collection: %s'),$x['name']);
}
elseif($arr['cid'] && $uid) {
$r = q("SELECT abook.*, xchan.* from abook left join xchan on abook_xchan = xchan_hash where abook_id = %d and abook_channel = %d and not ( abook_flags & " . intval(ABOOK_FLAG_BLOCKED) . ") limit 1",
intval($arr['cid']),
intval(local_user())
);
if($r) {
$sql_extra = " AND item.parent IN ( SELECT DISTINCT parent FROM item WHERE true $sql_options AND uid = " . intval($arr['uid']) . " AND ( author_xchan = '" . dbesc($r[0]['abook_xchan']) . "' or owner_xchan = '" . dbesc($r[0]['abook_xchan']) . "' ) and item_restrict = 0 ) ";
$result['headline'] = sprintf( t('Connection: %s'),$r[0]['xchan_name']);
}
else {
$result['message'] = t('Connection not found.');
return $result;
}
}
if($arr['datequery']) {
$sql_extra3 .= protect_sprintf(sprintf(" AND item.created <= '%s' ", dbesc(datetime_convert(date_default_timezone_get(),'',$arr['datequery']))));
}
if($arr['datequery2']) {
$sql_extra3 .= protect_sprintf(sprintf(" AND item.created >= '%s' ", dbesc(datetime_convert(date_default_timezone_get(),'',$arr['datequery2']))));
}
if(! array_key_exists('nouveau',$arr)) {
$sql_extra2 = " AND item.parent = item.id ";
$sql_extra3 = '';
}
if($arr['search']) {
if(strpos($arr['search'],'#') === 0)
$sql_extra .= term_query('item',substr($arr['search'],1),TERM_HASHTAG);
else
$sql_extra .= sprintf(" AND item.body like '%s' ",
dbesc(protect_sprintf('%' . $arr['search'] . '%'))
);
}
if(strlen($arr['file'])) {
$sql_extra .= term_query('item',$arr['files'],TERM_FILE);
}
if($arr['conv'] && $channel) {
$sql_extra .= sprintf(" AND parent IN (SELECT distinct parent from item where ( author_xchan like '%s' or ( item_flags & %d ))) ",
dbesc(protect_sprintf($uidhash)),
intval(ITEM_MENTIONSME)
);
}
if(($client_mode & CLIENT_MODE_UPDATE) && (! ($client_mode & CLIENT_MODE_LOAD))) {
// only setup pagination on initial page view
$pager_sql = '';
}
else {
$itemspage = (($channel) ? get_pconfig($uid,'system','itemspage') : 20);
$a->set_pager_itemspage(((intval($itemspage)) ? $itemspage : 20));
$pager_sql = sprintf(" LIMIT %d, %d ",intval(get_app()->pager['start']), intval(get_app()->pager['itemspage']));
}
if(isset($arr['start']) && isset($arr['records']))
$pager_sql = sprintf(" LIMIT %d, %d ",intval($arr['start']), intval($arr['records']));
if(array_key_exists('cmin',$arr) || array_key_exists('cmax',$arr)) {
if(($arr['cmin'] != 0) || ($arr['cmax'] != 99)) {
// Not everybody who shows up in the network stream will be in your address book.
// By default those that aren't are assumed to have closeness = 99; but this isn't
// recorded anywhere. So if cmax is 99, we'll open the search up to anybody in
// the stream with a NULL address book entry.
$sql_nets .= " AND ";
if($arr['cmax'] == 99)
$sql_nets .= " ( ";
$sql_nets .= "( abook.abook_closeness >= " . intval($arr['cmin']) . " ";
$sql_nets .= " AND abook.abook_closeness <= " . intval($arr['cmax']) . " ) ";
if($cmax == 99)
$sql_nets .= " OR abook.abook_closeness IS NULL ) ";
}
}
$simple_update = (($client_mode & CLIENT_MODE_UPDATE) ? " and ( item.item_flags & " . intval(ITEM_UNSEEN) . " ) " : '');
if($client_mode & CLIENT_MODE_LOAD)
$simple_update = '';
$start = dba_timer();
require_once('include/security.php');
$sql_extra .= item_permissions_sql($channel['channel_id']);
if($arr['pages'])
$item_restrict = " AND (item_restrict & " . ITEM_WEBPAGE . ") ";
else
$item_restrict = " AND item_restrict = 0 ";
if($arr['nouveau'] && ($client_mode & CLIENT_MODE_LOAD) && $channel) {
// "New Item View" - show all items unthreaded in reverse created date order
$items = q("SELECT item.*, item.id AS item_id FROM item
WHERE $item_uids $item_restrict
$simple_update
$sql_extra $sql_nets
ORDER BY item.received DESC $pager_sql "
);
require_once('include/items.php');
xchan_query($items);
$items = fetch_post_tags($items,true);
}
else {
// Normal conversation view
if($arr['order'] === 'post')
$ordering = "created";
else
$ordering = "commented";
if(($client_mode & CLIENT_MODE_LOAD) || ($client_mode == CLIENT_MODE_NORMAL)) {
// Fetch a page full of parent items for this page
$r = q("SELECT distinct item.id AS item_id FROM item
left join abook on item.author_xchan = abook.abook_xchan
WHERE $item_uids $item_restrict
AND item.parent = item.id
and ((abook.abook_flags & %d) = 0 or abook.abook_flags is null)
$sql_extra3 $sql_extra $sql_nets
ORDER BY item.$ordering DESC $pager_sql ",
intval(ABOOK_FLAG_BLOCKED)
);
}
else {
// update
$r = q("SELECT item.parent AS item_id FROM item
left join abook on item.author_xchan = abook.abook_xchan
WHERE $item_uids $item_restrict $simple_update
and ((abook.abook_flags & %d) = 0 or abook.abook_flags is null)
$sql_extra3 $sql_extra $sql_nets ",
intval(ABOOK_FLAG_BLOCKED)
);
}
$first = dba_timer();
// Then fetch all the children of the parents that are on this page
if($r) {
$parents_str = ids_to_querystr($r,'item_id');
if($arr['top'])
$sql_extra = ' and id = parent ' . $sql_extra;
$items = q("SELECT item.*, item.id AS item_id FROM item
WHERE $item_uids $item_restrict
AND item.parent IN ( %s )
$sql_extra ",
dbesc($parents_str)
);
$second = dba_timer();
xchan_query($items);
$third = dba_timer();
$items = fetch_post_tags($items,true);
$fourth = dba_timer();
require_once('include/conversation.php');
$items = conv_sort($items,$ordering);
//logger('items: ' . print_r($items,true));
}
else {
$items = array();
}
if($parents_str && $arr['mark_seen'])
$update_unseen = ' AND parent IN ( ' . dbesc($parents_str) . ' )';
// FIXME finish mark unseen sql
}
return $items;
}
function update_remote_id($channel,$post_id,$webpage,$pagetitle,$namespace,$remote_id,$mid) {
$page_type = '';
if($webpage & ITEM_WEBPAGE)
$page_type = 'WEBPAGE';
elseif($webpage & ITEM_BUILDBLOCK)
$page_type = 'BUILDBLOCK';
elseif($webpage & ITEM_PDL)
$page_type = 'PDL';
elseif($namespace && $remote_id) {
$page_type = $namespace;
$pagetitle = $remote_id;
}
if($page_type) {
// store page info as an alternate message_id so we can access it via
// https://sitename/page/$channelname/$pagetitle
// if no pagetitle was given or it couldn't be transliterated into a url, use the first
// sixteen bytes of the mid - which makes the link portable and not quite as daunting
// as the entire mid. If it were the post_id the link would be less portable.
$r = q("select * from item_id where iid = %d and uid = %d and service = '%s' limit 1",
intval($post_id),
intval($channel['channel_id']),
dbesc($page_type)
);
if($r) {
q("update item_id set sid = '%s' where id = %d limit 1",
dbesc(($pagetitle) ? $pagetitle : substr($mid,0,16)),
intval($r[0]['id'])
);
}
else {
q("insert into item_id ( iid, uid, sid, service ) values ( %d, %d, '%s','%s' )",
intval($post_id),
intval($channel['channel_id']),
dbesc(($pagetitle) ? $pagetitle : substr($mid,0,16)),
dbesc($page_type)
);
}
}
}
/**
* change access control for item with message_id $mid and channel_id $uid
*/
function item_add_cid($xchan_hash,$mid,$uid) {
$r = q("select id from item where mid = '%s' and uid = %d and allow_cid like '%s'",
dbesc($mid),
intval($uid),
dbesc('<' . $xchan_hash . '>')
);
if(! $r) {
$r = q("update item set allow_cid = concat(allow_cid,'%s') where mid = '%s' and uid = %d limit 1",
dbesc('<' . $xchan_hash . '>'),
dbesc($mid),
intval($uid)
);
}
}
function item_remove_cid($xchan_hash,$mid,$uid) {
$r = q("select allow_cid from item where mid = '%s' and uid = %d and allow_cid like '%s'",
dbesc($mid),
intval($uid),
dbesc('<' . $xchan_hash . '>')
);
if($r) {
$x = q("update item set allow_cid = '%s' where mid = '%s' and uid = %d limit 1",
dbesc(str_replace('<' . $xchan_hash . '>','',$r[0]['allow_cid'])),
dbesc($mid),
intval($uid)
);
}
}