Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
require_once('bbcode.php');
require_once('oembed.php');
require_once('include/salmon.php');
function get_feed_for(&$a, $dfrn_id, $owner_nick, $last_update, $direction = 0) {
// default permissions - anonymous user
if(! strlen($owner_nick))
killme();
$sql_extra = " AND `allow_cid` = '' AND `allow_gid` = '' AND `deny_cid` = '' AND `deny_gid` = '' ";
$r = q("SELECT `contact`.*, `user`.`uid` AS `user_uid`, `user`.`nickname`, `user`.`timezone`
FROM `contact` LEFT JOIN `user` ON `user`.`uid` = `contact`.`uid`
WHERE `contact`.`self` = 1 AND `user`.`nickname` = '%s' LIMIT 1",
dbesc($owner_nick)
);
if(! count($r))
killme();
$owner = $r[0];
$owner_id = $owner['user_uid'];
$owner_nick = $owner['nickname'];
$birthday = feed_birthday($owner_id,$owner['timezone']);
if(strlen($dfrn_id)) {
$sql_extra = '';
switch($direction) {
case (-1):
$sql_extra = sprintf(" AND `issued-id` = '%s' ", dbesc($dfrn_id));
$my_id = $dfrn_id;
break;
case 0:
$sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
$my_id = '1:' . $dfrn_id;
break;
case 1:
$sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
$my_id = '0:' . $dfrn_id;
break;
default:
return false;
break; // NOTREACHED
}
$r = q("SELECT * FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 AND `contact`.`uid` = %d $sql_extra LIMIT 1",
intval($owner_id)
);
if(! count($r))
killme();
$contact = $r[0];
$groups = init_groups_visitor($contact['id']);
if(count($groups)) {
for($x = 0; $x < count($groups); $x ++)
$groups[$x] = '<' . intval($groups[$x]) . '>' ;
$gs = implode('|', $groups);
}
else
$gs = '<<>>' ; // Impossible to match
$sql_extra = sprintf("
AND ( `allow_cid` = '' OR `allow_cid` REGEXP '<%d>' )
AND ( `deny_cid` = '' OR NOT `deny_cid` REGEXP '<%d>' )
AND ( `allow_gid` = '' OR `allow_gid` REGEXP '%s' )
AND ( `deny_gid` = '' OR NOT `deny_gid` REGEXP '%s')
",
intval($contact['id']),
intval($contact['id']),
dbesc($gs),
dbesc($gs)
);
}
if($dfrn_id === '' || $dfrn_id === '*')
$sort = 'DESC';
else
$sort = 'ASC';
if(! strlen($last_update))
$last_update = 'now -30 days';
$check_date = datetime_convert('UTC','UTC',$last_update,'Y-m-d H:i:s');
$r = q("SELECT `item`.*, `item`.`id` AS `item_id`,
`contact`.`name`, `contact`.`photo`, `contact`.`url`,
`contact`.`name-date`, `contact`.`uri-date`, `contact`.`avatar-date`,
`contact`.`thumb`, `contact`.`dfrn-id`, `contact`.`self`,
`contact`.`id` AS `contact-id`, `contact`.`uid` AS `contact-uid`
FROM `item` LEFT JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
WHERE `item`.`uid` = %d AND `item`.`visible` = 1 AND `item`.`parent` != 0
AND `item`.`wall` = 1 AND `contact`.`blocked` = 0 AND `contact`.`pending` = 0
AND ( `item`.`edited` > '%s' OR `item`.`changed` > '%s' )
$sql_extra
ORDER BY `parent` %s, `created` ASC LIMIT 0, 300",
intval($owner_id),
dbesc($check_date),
dbesc($check_date),
dbesc($sort)
);
// Will check further below if this actually returned results.
// We will provide an empty feed if that is the case.
$items = $r;
$feed_template = get_markup_template('atom_feed.tpl');
$atom = '';
$hubxml = feed_hublinks();
$salmon = feed_salmonlinks($owner_nick);
$atom .= replace_macros($feed_template, array(
'$version' => xmlify(FRIENDIKA_VERSION),
'$feed_id' => xmlify($a->get_baseurl() . '/profile/' . $owner_nick),
'$feed_title' => xmlify($owner['name']),
'$feed_updated' => xmlify(datetime_convert('UTC', 'UTC', 'now' , ATOM_TIME)) ,
'$hub' => $hubxml,
'$salmon' => $salmon,
'$name' => xmlify($owner['name']),
'$profile_page' => xmlify($owner['url']),
'$photo' => xmlify($owner['photo']),
'$thumb' => xmlify($owner['thumb']),
'$picdate' => xmlify(datetime_convert('UTC','UTC',$owner['avatar-date'] . '+00:00' , ATOM_TIME)) ,
'$uridate' => xmlify(datetime_convert('UTC','UTC',$owner['uri-date'] . '+00:00' , ATOM_TIME)) ,
'$namdate' => xmlify(datetime_convert('UTC','UTC',$owner['name-date'] . '+00:00' , ATOM_TIME)) ,
'$birthday' => ((strlen($birthday)) ? '<dfrn:birthday>' . xmlify($birthday) . '</dfrn:birthday>' : '')
));
call_hooks('atom_feed', $atom);
if(! count($items)) {
call_hooks('atom_feed_end', $atom);
$atom .= '</feed>' . "\r\n";
return $atom;
}
foreach($items as $item) {
// public feeds get html, our own nodes use bbcode
if($dfrn_id === '') {
$type = 'html';
}
else {
$type = 'text';
}
$atom .= atom_entry($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";
$r = parse_xml_string($item['object'],false);
if(! $r)
return '';
if($r->type)
$o .= '<as:object-type>' . xmlify($r->type) . '</as:object-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($r->link) {
if(substr($r->link,0,1) === '<') {
// patch up some facebook "like" activity objects that got stored incorrectly
// for a couple of months prior to 9-Jun-2011 and generated bad XML.
// we can probably remove this hack here and in the following function in a few months time.
if(strstr($r->link,'&') && (! strstr($r->link,'&amp;')))
$r->link = str_replace('&','&amp;', $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:object>' . "\r\n";
return $o;
}
return '';
}
function construct_activity_target($item) {
if($item['target']) {
$o = '<as:target>' . "\r\n";
$r = parse_xml_string($item['target'],false);
if(! $r)
return '';
if($r->type)
$o .= '<as:object-type>' . xmlify($r->type) . '</as:object-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($r->link) {
if(substr($r->link,0,1) === '<') {
if(strstr($r->link,'&') && (! strstr($r->link,'&amp;')))
$r->link = str_replace('&','&amp;', $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 $o;
}
return '';
}
function get_atom_elements($feed,$item) {
require_once('library/HTMLPurifier.auto.php');
require_once('include/html2bbcode.php');
$best_photo = array();
$res = array();
$author = $item->get_author();
if($author) {
$res['author-name'] = unxmlify($author->get_name());
$res['author-link'] = unxmlify($author->get_link());
}
else {
$res['author-name'] = unxmlify($feed->get_title());
$res['author-link'] = unxmlify($feed->get_permalink());
}
$res['uri'] = unxmlify($item->get_id());
$res['title'] = unxmlify($item->get_title());
$res['body'] = unxmlify($item->get_content());
$res['plink'] = unxmlify($item->get_link(0));
// 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(! $res['author-avatar']) {
if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
$res['author-avatar'] = unxmlify($link['attribs']['']['href']);
}
}
}
$rawactor = $item->get_item_tags(NAMESPACE_ACTIVITY, 'actor');
if($rawactor && activity_match($rawactor[0]['child'][NAMESPACE_ACTIVITY]['object-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']))
$res['author-link'] = unxmlify($link['attribs']['']['href']);
if(! $res['author-avatar']) {
if($link['attribs']['']['rel'] === 'avatar' || $link['attribs']['']['rel'] === 'photo')
$res['author-avatar'] = unxmlify($link['attribs']['']['href']);
}
}
}
}
// No photo/profile-link on the item - look at the feed level
if((! (x($res,'author-link'))) || (! (x($res,'author-avatar')))) {
$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' && (! $res['author-link']))
$res['author-link'] = unxmlify($link['attribs']['']['href']);
if(! $res['author-avatar']) {
if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
$res['author-avatar'] = unxmlify($link['attribs']['']['href']);
}
}
}
$rawactor = $feed->get_feed_tags(NAMESPACE_ACTIVITY, 'subject');
if($rawactor && activity_match($rawactor[0]['child'][NAMESPACE_ACTIVITY]['object-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']))
$res['author-link'] = unxmlify($link['attribs']['']['href']);
if(! (x($res,'author-avatar'))) {
if($link['attribs']['']['rel'] === 'avatar' || $link['attribs']['']['rel'] === 'photo')
$res['author-avatar'] = unxmlify($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($res['app'] === 'web')
$res['app'] = 'OStatus';
}
/**
* 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']));
}
$maxlen = get_max_import_size();
if($maxlen && (strlen($res['body']) > $maxlen))
$res['body'] = substr($res['body'],0, $maxlen);
// It isn't certain at this point whether our content is plaintext or html and we'd be foolish to trust
// the content type. Our own network only emits text normally, though it might have been converted to
// html if we used a pubsubhubbub transport. But if we see even one html tag in our text, we will
// have to assume it is all html and needs to be purified.
// It doesn't matter all that much security wise - because before this content is used anywhere, we are
// going to escape any tags we find regardless, but this lets us import a limited subset of html from
// the wild, by sanitising it and converting supported tags to bbcode before we rip out any remaining
// html.
if((strpos($res['body'],'<') !== false) || (strpos($res['body'],'>') !== false)) {
$res['body'] = preg_replace('#<object[^>]+>.+?' . 'http://www.youtube.com/((?:v|cp)/[A-Za-z0-9\-_=]+).+?</object>#s',
'[youtube]$1[/youtube]', $res['body']);
$res['body'] = preg_replace('#<iframe[^>].+?' . 'http://www.youtube.com/embed/([A-Za-z0-9\-_=]+).+?</iframe>#s',
'[youtube]$1[/youtube]', $res['body']);
$res['body'] = oembed_html2bbcode($res['body']);
$config = HTMLPurifier_Config::createDefault();
$config->set('Cache.DefinitionImpl', null);
// we shouldn't need a whitelist, because the bbcode converter
// will strip out any unsupported tags.
// $config->set('HTML.Allowed', 'p,b,a[href],i');
$purifier = new HTMLPurifier($config);
$res['body'] = $purifier->purify($res['body']);
$res['body'] = html2bbcode($res['body']);
}
$allow = $item->get_item_tags(NAMESPACE_DFRN,'comment-allow');
if($allow && $allow[0]['data'] == 1)
$res['last-child'] = 1;
else
$res['last-child'] = 0;
$private = $item->get_item_tags(NAMESPACE_DFRN,'private');
if($private && $private[0]['data'] == 1)
$res['private'] = 1;
else
$res['private'] = 0;
$extid = $item->get_item_tags(NAMESPACE_DFRN,'extid');
if($extid && $extid[0]['data'])
$res['extid'] = $extid[0]['data'];
$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();
$rawowner = $item->get_item_tags(NAMESPACE_DFRN, 'owner');
if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data'])
$res['owner-name'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']);
elseif($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data'])
$res['owner-name'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data']);
if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data'])
$res['owner-link'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']);
elseif($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data'])
$res['owner-link'] = unxmlify($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(! $res['owner-avatar']) {
if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
$res['owner-avatar'] = unxmlify($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) {
$tag_arr = array();
foreach($cats as $cat) {
$term = $cat->get_term();
if(! $term)
$term = $cat->get_label();
$scheme = $cat->get_scheme();
if($scheme && $term && stristr($scheme,'X-DFRN:'))
$tag_arr[] = substr($scheme,7,1) . '[url=' . unxmlify(substr($scheme,9)) . ']' . unxmlify($term) . '[/url]';
elseif($term)
$tag_arr[] = notags(trim($term));
}
$res['tag'] = implode(',', $tag_arr);
}
$attach = $item->get_enclosures();
if($attach) {
$att_arr = array();
foreach($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';
$att_arr[] = '[attach]href="' . $link . '" size="' . $len . '" type="' . $type . '" title="' . $title . '"[/attach]';
}
$res['attach'] = implode(',', $att_arr);
}
$rawobj = $item->get_item_tags(NAMESPACE_ACTIVITY, 'object');
if($rawobj) {
$res['object'] = '<object>' . "\n";
if($rawobj[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data']) {
$res['object-type'] = $rawobj[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data'];
$res['object'] .= '<type>' . $rawobj[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data'] . '</type>' . "\n";
}
if($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'])
$res['object'] .= '<id>' . $rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'] . '</id>' . "\n";
if($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'])
$res['object'] .= '<link>' . encode_rel_links($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) . '</link>' . "\n";
if($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'])
$res['object'] .= '<title>' . $rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'] . '</title>' . "\n";
if($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data']) {
$body = $rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data'];
if(! $body)
$body = $rawobj[0]['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
$res['object'] .= '<orig>' . xmlify($body) . '</orig>' . "\n";
if((strpos($body,'<') !== false) || (strpos($body,'>') !== false)) {
$body = preg_replace('#<object[^>]+>.+?' . 'http://www.youtube.com/((?:v|cp)/[A-Za-z0-9\-_=]+).+?</object>#s',
'[youtube]$1[/youtube]', $body);
$res['body'] = preg_replace('#<iframe[^>].+?' . 'http://www.youtube.com/embed/([A-Za-z0-9\-_=]+).+?</iframe>#s',
'[youtube]$1[/youtube]', $res['body']);
$config = HTMLPurifier_Config::createDefault();
$config->set('Cache.DefinitionImpl', null);
$purifier = new HTMLPurifier($config);
$body = $purifier->purify($body);
$body = html2bbcode($body);
}
$res['object'] .= '<content>' . $body . '</content>' . "\n";
}
$res['object'] .= '</object>' . "\n";
}
$rawobj = $item->get_item_tags(NAMESPACE_ACTIVITY, 'target');
if($rawobj) {
$res['target'] = '<target>' . "\n";
if($rawobj[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data']) {
$res['target'] .= '<type>' . $rawobj[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data'] . '</type>' . "\n";
}
if($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'])
$res['target'] .= '<id>' . $rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'] . '</id>' . "\n";
if($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'])
$res['target'] .= '<link>' . encode_rel_links($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) . '</link>' . "\n";
if($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'])
$res['target'] .= '<title>' . $rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'] . '</title>' . "\n";
if($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data']) {
$body = $rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data'];
if(! $body)
$body = $rawobj[0]['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
$res['object'] .= '<orig>' . xmlify($body) . '</orig>' . "\n";
if((strpos($body,'<') !== false) || (strpos($body,'>') !== false)) {
$body = preg_replace('#<object[^>]+>.+?' . 'http://www.youtube.com/((?:v|cp)/[A-Za-z0-9\-_=]+).+?</object>#s',
'[youtube]$1[/youtube]', $body);
$res['body'] = preg_replace('#<iframe[^>].+?' . 'http://www.youtube.com/embed/([A-Za-z0-9\-_=]+).+?</iframe>#s',
'[youtube]$1[/youtube]', $res['body']);
$config = HTMLPurifier_Config::createDefault();
$config->set('Cache.DefinitionImpl', null);
$purifier = new HTMLPurifier($config);
$body = $purifier->purify($body);
$body = html2bbcode($body);
}
$res['target'] .= '<content>' . $body . '</content>' . "\n";
}
$res['target'] .= '</target>' . "\n";
}
$arr = array('feed' => $feed, 'item' => $item, 'result' => $res);
call_hooks('parse_atom', $arr);
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($arr,$force_parent = false) {
if($arr['gravity'])
$arr['gravity'] = intval($arr['gravity']);
elseif($arr['parent-uri'] == $arr['uri'])
$arr['gravity'] = 0;
elseif(activity_match($arr['verb'],ACTIVITY_POST))
$arr['gravity'] = 6;
else
$arr['gravity'] = 6; // extensible catchall
if(! x($arr,'type'))
$arr['type'] = 'remote';
// Shouldn't happen but we want to make absolutely sure it doesn't leak from a plugin.
if((strpos($arr['body'],'<') !== false) || (strpos($arr['body'],'>') !== false))
$arr['body'] = strip_tags($arr['body']);
$arr['wall'] = ((x($arr,'wall')) ? intval($arr['wall']) : 0);
$arr['uri'] = ((x($arr,'uri')) ? notags(trim($arr['uri'])) : random_string());
$arr['extid'] = ((x($arr,'extid')) ? notags(trim($arr['extid'])) : '');
$arr['author-name'] = ((x($arr,'author-name')) ? notags(trim($arr['author-name'])) : '');
$arr['author-link'] = ((x($arr,'author-link')) ? notags(trim($arr['author-link'])) : '');
$arr['author-avatar'] = ((x($arr,'author-avatar')) ? notags(trim($arr['author-avatar'])) : '');
$arr['owner-name'] = ((x($arr,'owner-name')) ? notags(trim($arr['owner-name'])) : '');
$arr['owner-link'] = ((x($arr,'owner-link')) ? notags(trim($arr['owner-link'])) : '');
$arr['owner-avatar'] = ((x($arr,'owner-avatar')) ? notags(trim($arr['owner-avatar'])) : '');
$arr['created'] = ((x($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['received'] = datetime_convert();
$arr['changed'] = datetime_convert();
$arr['title'] = ((x($arr,'title')) ? notags(trim($arr['title'])) : '');
$arr['location'] = ((x($arr,'location')) ? notags(trim($arr['location'])) : '');
$arr['coord'] = ((x($arr,'coord')) ? notags(trim($arr['coord'])) : '');
$arr['last-child'] = ((x($arr,'last-child')) ? intval($arr['last-child']) : 0 );
$arr['visible'] = ((x($arr,'visible') !== false) ? intval($arr['visible']) : 1 );
$arr['deleted'] = 0;
$arr['parent-uri'] = ((x($arr,'parent-uri')) ? notags(trim($arr['parent-uri'])) : '');
$arr['verb'] = ((x($arr,'verb')) ? notags(trim($arr['verb'])) : '');
$arr['object-type'] = ((x($arr,'object-type')) ? notags(trim($arr['object-type'])) : '');
$arr['object'] = ((x($arr,'object')) ? trim($arr['object']) : '');
$arr['target-type'] = ((x($arr,'target-type')) ? notags(trim($arr['target-type'])) : '');
$arr['target'] = ((x($arr,'target')) ? trim($arr['target']) : '');
$arr['plink'] = ((x($arr,'plink')) ? notags(trim($arr['plink'])) : '');
$arr['allow_cid'] = ((x($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']) : '');
$arr['private'] = ((x($arr,'private')) ? intval($arr['private']) : 0 );
$arr['body'] = ((x($arr,'body')) ? trim($arr['body']) : '');
$arr['tag'] = ((x($arr,'tag')) ? notags(trim($arr['tag'])) : '');
$arr['attach'] = ((x($arr,'attach')) ? notags(trim($arr['attach'])) : '');
$arr['app'] = ((x($arr,'app')) ? notags(trim($arr['app'])) : '');
if($arr['parent-uri'] === $arr['uri']) {
$parent_id = 0;
$allow_cid = $arr['allow_cid'];
$allow_gid = $arr['allow_gid'];
$deny_cid = $arr['deny_cid'];
$deny_gid = $arr['deny_gid'];
}
else {
// find the parent and snarf the item id and ACL's
// and anything else we need to inherit
$r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
dbesc($arr['parent-uri']),
intval($arr['uid'])
);
if(count($r)) {
// 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]['uri'] != $r[0]['parent-uri']) {
$arr['thr-parent'] = $arr['parent-uri'];
$arr['parent-uri'] = $r[0]['parent-uri'];
}
$parent_id = $r[0]['id'];
$parent_deleted = $r[0]['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'];
$arr['wall'] = $r[0]['wall'];
}
else {
// Allow one to see reply tweets from status.net even when
// we don't have or can't see the original post.
if($force_parent) {
logger('item_store: $force_parent=true, reply converted to top-level post.');
$parent_id = 0;
$arr['thr-parent'] = $arr['parent-uri'];
$arr['parent-uri'] = $arr['uri'];
$arr['gravity'] = 0;
}
else {
logger('item_store: item parent was not found - ignoring item');
return 0;
}
}
}
call_hooks('post_remote',$arr);
dbesc_array($arr);
logger('item_store: ' . print_r($arr,true), LOGGER_DATA);
$r = dbq("INSERT INTO `item` (`"
. implode("`, `", array_keys($arr))
. "`) VALUES ('"
. implode("', '", array_values($arr))
. "')" );
// find the item we just created
$r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
$arr['uri'], // already dbesc'd
intval($arr['uid'])
);
if(! count($r)) {
// This is not good, but perhaps we encountered a rare race/cache condition, so back off and try again.
sleep(3);
$r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
$arr['uri'], // already dbesc'd
intval($arr['uid'])
);
}
if(count($r)) {
$current_post = $r[0]['id'];
logger('item_store: created item ' . $current_post);
}
else {
logger('item_store: could not locate created item');
return 0;
}
if((! $parent_id) || ($arr['parent-uri'] === $arr['uri']))
$parent_id = $current_post;
if(strlen($allow_cid) || strlen($allow_gid) || strlen($deny_cid) || strlen($deny_gid))
$private = 1;
else
$private = $arr['private'];
// Set parent id - and also make sure to inherit the parent's ACL's.
$r = q("UPDATE `item` SET `parent` = %d, `allow_cid` = '%s', `allow_gid` = '%s',
`deny_cid` = '%s', `deny_gid` = '%s', `private` = %d, `deleted` = %d WHERE `id` = %d LIMIT 1",
intval($parent_id),
dbesc($allow_cid),
dbesc($allow_gid),
dbesc($deny_cid),
dbesc($deny_gid),
intval($private),
intval($parent_deleted),
intval($current_post)
);
/**
* If this is now the last-child, force all _other_ children of this parent to *not* be last-child
*/
if($arr['last-child']) {
$r = q("UPDATE `item` SET `last-child` = 0 WHERE `parent-uri` = '%s' AND `uid` = %d AND `id` != %d",
dbesc($arr['uri']),
intval($arr['uid']),
intval($current_post)
);
}
return $current_post;
}
function get_item_contact($item,$contacts) {
if(! count($contacts) || (! is_array($item)))
return false;
foreach($contacts as $contact) {
if($contact['id'] == $item['contact-id']) {
return $contact;
break; // NOTREACHED
}
}
return false;
}
function dfrn_deliver($owner,$contact,$atom, $dissolve = false) {
$a = get_app();
if((! strlen($contact['issued-id'])) && (! $contact['duplex']) && (! ($owner['page-flags'] == PAGE_COMMUNITY)))
return 3;
$idtosend = $orig_id = (($contact['dfrn-id']) ? $contact['dfrn-id'] : $contact['issued-id']);
if($contact['duplex'] && $contact['dfrn-id'])
$idtosend = '0:' . $orig_id;
if($contact['duplex'] && $contact['issued-id'])
$idtosend = '1:' . $orig_id;
$rino = ((function_exists('mcrypt_encrypt')) ? 1 : 0);
$rino_enable = get_config('system','rino_encrypt');
if(! $rino_enable)
$rino = 0;
$url = $contact['notify'] . '&dfrn_id=' . $idtosend . '&dfrn_version=' . DFRN_PROTOCOL_VERSION . (($rino) ? '&rino=1' : '');
logger('dfrn_deliver: ' . $url);
$xml = fetch_url($url);
$curl_stat = $a->get_curl_code();
if(! $curl_stat)
return(-1); // timed out
logger('dfrn_deliver: ' . $xml);
if(! $xml)
return 3;
if(strpos($xml,'<?xml') === false) {
logger('dfrn_deliver: no valid XML returned');
logger('dfrn_deliver: returned XML: ' . $xml, LOGGER_DATA);
return 3;
}
$res = parse_xml_string($xml);
if((intval($res->status) != 0) || (! strlen($res->challenge)) || (! strlen($res->dfrn_id)))
return (($res->status) ? $res->status : 3);
$postvars = array();
$sent_dfrn_id = hex2bin((string) $res->dfrn_id);
$challenge = hex2bin((string) $res->challenge);
$dfrn_version = (float) (($res->dfrn_version) ? $res->dfrn_version : 2.0);
$rino_allowed = ((intval($res->rino) === 1) ? 1 : 0);
$final_dfrn_id = '';
if(($contact['duplex'] && strlen($contact['pubkey'])) || ($owner['page-flags'] == PAGE_COMMUNITY)) {
openssl_public_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['pubkey']);
openssl_public_decrypt($challenge,$postvars['challenge'],$contact['pubkey']);
}
else {
openssl_private_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['prvkey']);
openssl_private_decrypt($challenge,$postvars['challenge'],$contact['prvkey']);
}
$final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
if(strpos($final_dfrn_id,':') == 1)
$final_dfrn_id = substr($final_dfrn_id,2);
if($final_dfrn_id != $orig_id) {
logger('dfrn_deliver: wrong dfrn_id.');
// did not decode properly - cannot trust this site
return 3;
}
$postvars['dfrn_id'] = $idtosend;
$postvars['dfrn_version'] = DFRN_PROTOCOL_VERSION;
if($dissolve)
$postvars['dissolve'] = '1';
if((($contact['rel']) && ($contact['rel'] != REL_FAN) && (! $contact['blocked'])) || ($owner['page-flags'] == PAGE_COMMUNITY)) {
$postvars['data'] = $atom;
$postvars['perm'] = 'rw';
}
else {
$postvars['data'] = str_replace('<dfrn:comment-allow>1','<dfrn:comment-allow>0',$atom);
$postvars['perm'] = 'r';
}
if($rino && $rino_allowed && (! $dissolve)) {
$key = substr(random_string(),0,16);
$data = bin2hex(aes_encrypt($postvars['data'],$key));
$postvars['data'] = $data;
logger('rino: sent key = ' . $key);
if($dfrn_version >= 2.1) {
if(($contact['duplex'] && strlen($contact['pubkey'])) || ($owner['page-flags'] == PAGE_COMMUNITY)) {
openssl_public_encrypt($key,$postvars['key'],$contact['pubkey']);
}
else {
openssl_private_encrypt($key,$postvars['key'],$contact['prvkey']);
}
}
else {
if(($contact['duplex'] && strlen($contact['prvkey'])) || ($owner['page-flags'] == PAGE_COMMUNITY)) {
openssl_private_encrypt($key,$postvars['key'],$contact['prvkey']);
}
else {
openssl_public_encrypt($key,$postvars['key'],$contact['pubkey']);
}
}
logger('md5 rawkey ' . md5($postvars['key']));
$postvars['key'] = bin2hex($postvars['key']);
}
logger('dfrn_deliver: ' . "SENDING: " . print_r($postvars,true), LOGGER_DATA);
$xml = post_url($contact['notify'],$postvars);
logger('dfrn_deliver: ' . "RECEIVED: " . $xml, LOGGER_DATA);
$curl_stat = $a->get_curl_code();
if((! $curl_stat) || (! strlen($xml)))
return(-1); // timed out
if(strpos($xml,'<?xml') === false) {
logger('dfrn_deliver: phase 2: no valid XML returned');
logger('dfrn_deliver: phase 2: returned XML: ' . $xml, LOGGER_DATA);
return 3;
}
$res = parse_xml_string($xml);
return $res->status;
}
/**
*
* 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.
* $hub = should we find a hub declation in the feed, pass it back to our calling process, who might (or
* might not) try and subscribe to it.
*
*/
function consume_feed($xml,$importer,&$contact, &$hub, $datedir = 0, $secure_feed = false) {
require_once('library/simplepie/simplepie.inc');
$feed = new SimplePie();
$feed->set_raw_data($xml);
if($datedir)
$feed->enable_order_by_date(true);
else
$feed->enable_order_by_date(false);
$feed->init();
if($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
$name_updated = '';
$new_name = '';
$photo_timestamp = '';
$photo_url = '';
$birthday = '';
$hubs = $feed->get_links('hub');
if(count($hubs))
$hub = implode(',', $hubs);
$rawtags = $feed->get_feed_tags( SIMPLEPIE_NAMESPACE_ATOM_10, 'author');
if($rawtags) {
$elems = $rawtags[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10];
if($elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated']) {
$name_updated = $elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated'];
$new_name = $elems['name'][0]['data'];
}
if((x($elems,'link')) && ($elems['link'][0]['attribs']['']['rel'] === 'photo') && ($elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated'])) {
$photo_timestamp = datetime_convert('UTC','UTC',$elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated']);
$photo_url = $elems['link'][0]['attribs']['']['href'];
}
if((x($rawtags[0]['child'], NAMESPACE_DFRN)) && (x($rawtags[0]['child'][NAMESPACE_DFRN],'birthday'))) {
$birthday = datetime_convert('UTC','UTC', $rawtags[0]['child'][NAMESPACE_DFRN]['birthday'][0]['data']);
}
}
if((is_array($contact)) && ($photo_timestamp) && (strlen($photo_url)) && ($photo_timestamp > $contact['avatar-date'])) {
logger('consume_feed: Updating photo for ' . $contact['name']);
require_once("Photo.php");
$photo_failure = false;
$have_photo = false;
$r = q("SELECT `resource-id` FROM `photo` WHERE `contact-id` = %d AND `uid` = %d LIMIT 1",
intval($contact['id']),
intval($contact['uid'])
);
if(count($r)) {
$resource_id = $r[0]['resource-id'];
$have_photo = true;
}
else {
$resource_id = photo_new_resource();
}
$img_str = fetch_url($photo_url,true);
$img = new Photo($img_str);
if($img->is_valid()) {
if($have_photo) {
q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND `contact-id` = %d AND `uid` = %d",
dbesc($resource_id),
intval($contact['id']),
intval($contact['uid'])
);
}
$img->scaleImageSquare(175);
$hash = $resource_id;
$r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), 'Contact Photos', 4);
$img->scaleImage(80);
$r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), 'Contact Photos', 5);
$img->scaleImage(48);
$r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), 'Contact Photos', 6);
$a = get_app();
q("UPDATE `contact` SET `avatar-date` = '%s', `photo` = '%s', `thumb` = '%s', `micro` = '%s'
WHERE `uid` = %d AND `id` = %d LIMIT 1",
dbesc(datetime_convert()),
dbesc($a->get_baseurl() . '/photo/' . $hash . '-4.jpg'),
dbesc($a->get_baseurl() . '/photo/' . $hash . '-5.jpg'),
dbesc($a->get_baseurl() . '/photo/' . $hash . '-6.jpg'),
intval($contact['uid']),
intval($contact['id'])
);
}
}
if((is_array($contact)) && ($name_updated) && (strlen($new_name)) && ($name_updated > $contact['name-date'])) {
q("UPDATE `contact` SET `name` = '%s', `name-date` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
dbesc(notags(trim($new_name))),
dbesc(datetime_convert()),
intval($contact['uid']),
intval($contact['id'])
);
}
if(strlen($birthday)) {
if(substr($birthday,0,4) != $contact['bdyear']) {
logger('consume_feed: updating birthday: ' . $birthday);
/**
*
* Add new birthday event for this person
*
* $bdtext is just a readable placeholder in case the event is shared
* with others. We will replace it during presentation to our $importer
* to contain a sparkle link and perhaps a photo.
*
*/
$bdtext = t('Birthday:') . ' [url=' . $contact['url'] . ']' . $contact['name'] . '[/url]' ;
$r = q("INSERT INTO `event` (`uid`,`cid`,`created`,`edited`,`start`,`finish`,`desc`,`type`)
VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s' ) ",
intval($contact['uid']),
intval($contact['id']),
dbesc(datetime_convert()),
dbesc(datetime_convert()),
dbesc(datetime_convert('UTC','UTC', $birthday)),
dbesc(datetime_convert('UTC','UTC', $birthday . ' + 1 day ')),
dbesc($bdtext),
dbesc('birthday')
);
// update bdyear
q("UPDATE `contact` SET `bdyear` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
dbesc(substr($birthday,0,4)),
intval($contact['uid']),
intval($contact['id'])
);
// This function is called twice without reloading the contact
// Make sure we only create one event. This is why &$contact
// is a reference var in this function
$contact['bdyear'] = substr($birthday,0,4);
}
}
// process any deleted entries
$del_entries = $feed->get_feed_tags(NAMESPACE_TOMB, 'deleted-entry');
if(is_array($del_entries) && count($del_entries)) {
foreach($del_entries as $dentry) {
$deleted = false;
if(isset($dentry['attribs']['']['ref'])) {
$uri = $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)) {
$r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d AND `contact-id` = %d LIMIT 1",
dbesc($uri),
intval($importer['uid']),
intval($contact['id'])
);
if(count($r)) {
$item = $r[0];
if(! $item['deleted'])
logger('consume_feed: deleting item ' . $item['id'] . ' uri=' . $item['uri'], LOGGER_DEBUG);
if($item['uri'] == $item['parent-uri']) {
$r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
`body` = '', `title` = ''
WHERE `parent-uri` = '%s' AND `uid` = %d",
dbesc($when),
dbesc(datetime_convert()),
dbesc($item['uri']),
intval($importer['uid'])
);
}
else {
$r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
`body` = '', `title` = ''
WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
dbesc($when),
dbesc(datetime_convert()),
dbesc($uri),
intval($importer['uid'])
);
if($item['last-child']) {
// ensure that last-child is set in case the comment that had it just got wiped.
q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
dbesc(datetime_convert()),
dbesc($item['parent-uri']),
intval($item['uid'])
);
// who is the last child now?
$r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d
ORDER BY `created` DESC LIMIT 1",
dbesc($item['parent-uri']),
intval($importer['uid'])
);
if(count($r)) {
q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
intval($r[0]['id'])
);
}
}
}
}
}
}
}
// Now process the feed
if($feed->get_item_quantity()) {
logger('consume_feed: feed item count = ' . $feed->get_item_quantity());
// in inverse date order
if ($datedir)
$items = array_reverse($feed->get_items());
else
$items = $feed->get_items();
foreach($items as $item) {
$is_reply = false;
$item_id = $item->get_id();
$rawthread = $item->get_item_tags( NAMESPACE_THREAD,'in-reply-to');
if(isset($rawthread[0]['attribs']['']['ref'])) {
$is_reply = true;
$parent_uri = $rawthread[0]['attribs']['']['ref'];
}
if(($is_reply) && is_array($contact)) {
// Have we seen it? If not, import it.
$item_id = $item->get_id();
$datarray = get_atom_elements($feed,$item);
if(! x($datarray,'author-name'))
$datarray['author-name'] = $contact['name'];
if(! x($datarray,'author-link'))
$datarray['author-link'] = $contact['url'];
if(! x($datarray,'author-avatar'))
$datarray['author-avatar'] = $contact['thumb'];
$r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
dbesc($item_id),
intval($importer['uid'])
);
// Update content if 'updated' changes
if(count($r)) {
if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
$r = q("UPDATE `item` SET `body` = '%s', `edited` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
dbesc($datarray['body']),
dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
dbesc($item_id),
intval($importer['uid'])
);
}
// update last-child if it changes
$allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
if(($allow) && ($allow[0]['data'] != $r[0]['last-child'])) {
$r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
dbesc(datetime_convert()),
dbesc($parent_uri),
intval($importer['uid'])
);
$r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
intval($allow[0]['data']),
dbesc(datetime_convert()),
dbesc($item_id),
intval($importer['uid'])
);
}
continue;
}
$force_parent = false;
if($contact['network'] === 'stat') {
$force_parent = true;
if(strlen($datarray['title']))
unset($datarray['title']);
$r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
dbesc(datetime_convert()),
dbesc($parent_uri),
intval($importer['uid'])
);
$datarray['last-child'] = 1;
}
if(($contact['network'] === 'feed') || (! strlen($contact['notify']))) {
// one way feed - no remote comment ability
$datarray['last-child'] = 0;
}
$datarray['parent-uri'] = $parent_uri;
$datarray['uid'] = $importer['uid'];
$datarray['contact-id'] = $contact['id'];
if((activity_match($datarray['verb'],ACTIVITY_LIKE)) || (activity_match($datarray['verb'],ACTIVITY_DISLIKE))) {
$datarray['type'] = 'activity';
$datarray['gravity'] = GRAVITY_LIKE;
}
$r = item_store($datarray,$force_parent);
continue;
}
else {
// Head post of a conversation. Have we seen it? If not, import it.
$item_id = $item->get_id();
$datarray = get_atom_elements($feed,$item);
if(is_array($contact)) {
if(! x($datarray,'author-name'))
$datarray['author-name'] = $contact['name'];
if(! x($datarray,'author-link'))
$datarray['author-link'] = $contact['url'];
if(! x($datarray,'author-avatar'))
$datarray['author-avatar'] = $contact['thumb'];
}
if((x($datarray,'object-type')) && ($datarray['object-type'] === ACTIVITY_OBJ_EVENT)) {
$ev = bbtoevent($datarray['body']);
if(x($ev,'desc') && x($ev,'start')) {
$ev['uid'] = $importer['uid'];
$ev['uri'] = $item_id;
$ev['edited'] = $datarray['edited'];
if(is_array($contact))
$ev['cid'] = $contact['id'];
$r = q("SELECT * FROM `event` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
dbesc($item_id),
intval($importer['uid'])
);
if(count($r))
$ev['id'] = $r[0]['id'];
$xyz = event_store($ev);
continue;
}
}
$r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
dbesc($item_id),
intval($importer['uid'])
);
// Update content if 'updated' changes
if(count($r)) {
if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
$r = q("UPDATE `item` SET `body` = '%s', `edited` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
dbesc($datarray['body']),
dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
dbesc($item_id),
intval($importer['uid'])
);
}
// update last-child if it changes
$allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
if($allow && $allow[0]['data'] != $r[0]['last-child']) {
$r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
intval($allow[0]['data']),
dbesc(datetime_convert()),
dbesc($item_id),
intval($importer['uid'])
);
}
continue;
}
if(activity_match($datarray['verb'],ACTIVITY_FOLLOW)) {
logger('consume-feed: New follower');
new_follower($importer,$contact,$datarray,$item);
return;
}
if(activity_match($datarray['verb'],ACTIVITY_UNFOLLOW)) {
lose_follower($importer,$contact,$datarray,$item);
return;
}
if(! is_array($contact))
return;
if($contact['network'] === 'stat' || stristr($permalink,'twitter.com')) {
if(strlen($datarray['title']))
unset($datarray['title']);
$datarray['last-child'] = 1;
}
if(($contact['network'] === 'feed') || (! strlen($contact['notify']))) {
// one way feed - no remote comment ability
$datarray['last-child'] = 0;
}
// This is my contact on another system, but it's really me.
// Turn this into a wall post.
if($contact['remote_self'])
$datarray['wall'] = 1;
$datarray['parent-uri'] = $item_id;
$datarray['uid'] = $importer['uid'];
$datarray['contact-id'] = $contact['id'];
$r = item_store($datarray);
continue;
}
}
}
}
function new_follower($importer,$contact,$datarray,$item) {
$url = notags(trim($datarray['author-link']));
$name = notags(trim($datarray['author-name']));
$photo = notags(trim($datarray['author-avatar']));
$rawtag = $item->get_item_tags(NAMESPACE_ACTIVITY,'actor');
if($rawtag && $rawtag[0]['child'][NAMESPACE_POCO]['preferredUsername'][0]['data'])
$nick = $rawtag[0]['child'][NAMESPACE_POCO]['preferredUsername'][0]['data'];
if(is_array($contact)) {
if($contact['network'] == 'stat' && $contact['rel'] == REL_FAN) {
$r = q("UPDATE `contact` SET `rel` = %d WHERE `id` = %d AND `uid` = %d LIMIT 1",
intval(REL_BUD),
intval($contact['id']),
intval($importer['uid'])
);
}
// send email notification to owner?
}
else {
// create contact record
$r = q("INSERT INTO `contact` ( `uid`, `created`, `url`, `name`, `nick`, `photo`, `network`, `rel`,
`blocked`, `readonly`, `pending`, `writable` )
VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', %d, 0, 0, 1, 1 ) ",
intval($importer['uid']),
dbesc(datetime_convert()),
dbesc($url),
dbesc($name),
dbesc($nick),
dbesc($photo),
dbesc('stat'),
intval(REL_VIP)
);
$r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `url` = '%s' AND `pending` = 1 AND `rel` = %d LIMIT 1",
intval($importer['uid']),
dbesc($url),
intval(REL_VIP)
);
if(count($r))
$contact_record = $r[0];
// create notification
$hash = random_string();
if(is_array($contact_record)) {
$ret = q("INSERT INTO `intro` ( `uid`, `contact-id`, `blocked`, `knowyou`, `hash`, `datetime`)
VALUES ( %d, %d, 0, 0, '%s', '%s' )",
intval($importer['uid']),
intval($contact_record['id']),
dbesc($hash),
dbesc(datetime_convert())
);
}
$r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
intval($importer['uid'])
);
$a = get_app();
if(count($r)) {
if(($r[0]['notify-flags'] & NOTIFY_INTRO) && ($r[0]['page-flags'] == PAGE_NORMAL)) {
$email_tpl = get_intltext_template('follow_notify_eml.tpl');
$email = replace_macros($email_tpl, array(
'$requestor' => ((strlen($name)) ? $name : t('[Name Withheld]')),
'$url' => $url,
'$myname' => $r[0]['username'],
'$siteurl' => $a->get_baseurl(),
'$sitename' => $a->config['sitename']
));
$res = mail($r[0]['email'],
t("You have a new follower at ") . $a->config['sitename'],
$email,
'From: ' . t('Administrator') . '@' . $_SERVER['SERVER_NAME'] . "\n"
. 'Content-type: text/plain; charset=UTF-8' . "\n"
. 'Content-transfer-encoding: 8bit' );
}
}
}
}
function lose_follower($importer,$contact,$datarray,$item) {
if(($contact['rel'] == REL_BUD) || ($contact['rel'] == REL_FAN)) {
q("UPDATE `contact` SET `rel` = %d WHERE `id` = %d LIMIT 1",
intval(REL_FAN),
intval($contact['id'])
);
}
else {
contact_remove($contact['id']);
}
}
function subscribe_to_hub($url,$importer,$contact) {
if(is_array($importer)) {
$r = q("SELECT `nickname` FROM `user` WHERE `uid` = %d LIMIT 1",
intval($importer['uid'])
);
}
if(! count($r))
return;
$push_url = get_config('system','url') . '/pubsub/' . $r[0]['nickname'] . '/' . $contact['id'];
// Use a single verify token, even if multiple hubs
$verify_token = ((strlen($contact['hub-verify'])) ? $contact['hub-verify'] : random_string());
$params= 'hub.mode=subscribe&hub.callback=' . urlencode($push_url) . '&hub.topic=' . urlencode($contact['poll']) . '&hub.verify=async&hub.verify_token=' . $verify_token;
logger('subscribe_to_hub: subscribing ' . $contact['name'] . ' to hub ' . $url . ' with verifier ' . $verify_token);
if(! strlen($contact['hub-verify'])) {
$r = q("UPDATE `contact` SET `hub-verify` = '%s' WHERE `id` = %d LIMIT 1",
dbesc($verify_token),
intval($contact['id'])
);
}
post_url($url,$params);
return;
}
function atom_author($tag,$name,$uri,$h,$w,$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="image/jpeg" media:width="' . $w . '" media:height="' . $h . '" href="' . $photo . '" />' . "\r\n";
$o .= '<link rel="avatar" type="image/jpeg" 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) {
$a = get_app();
if($item['deleted'])
return '<at:deleted-entry ref="' . xmlify($item['uri']) . '" when="' . xmlify(datetime_convert('UTC','UTC',$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']);
else
$body = $item['body'];
$o = "\r\n\r\n<entry>\r\n";
if(is_array($author))
$o .= atom_author('author',$author['name'],$author['url'],80,80,$author['thumb']);
else
$o .= atom_author('author',(($item['author-name']) ? $item['author-name'] : $item['name']),(($item['author-link']) ? $item['author-link'] : $item['url']),80,80,(($item['author-avatar']) ? $item['author-avatar'] : $item['thumb']));
if(strlen($item['owner-name']))
$o .= atom_author('dfrn:owner',$item['owner-name'],$item['owner-link'],80,80,$item['owner-avatar']);
if($item['parent'] != $item['id'])
$o .= '<thr:in-reply-to ref="' . xmlify($item['parent-uri']) . '" type="text/html" href="' . xmlify($a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['id']) . '" />' . "\r\n";
$o .= '<id>' . xmlify($item['uri']) . '</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";
$o .= '<dfrn:env>' . base64url_encode($body, true) . '</dfrn:env>' . "\r\n";
$o .= '<content type="' . $type . '" >' . xmlify(($type === 'html') ? bbcode($body) : $body) . '</content>' . "\r\n";
$o .= '<link rel="alternate" type="text/html" href="' . xmlify($a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['id']) . '" />' . "\r\n";
if($comment)
$o .= '<dfrn:comment-allow>' . intval($item['last-child']) . '</dfrn:comment-allow>' . "\r\n";
if($item['location']) {
$o .= '<dfrn:location>' . xmlify($item['location']) . '</dfrn: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(($item['private']) || strlen($item['allow_cid']) || strlen($item['allow_gid']) || strlen($item['deny_cid']) || strlen($item['deny_gid']))
$o .= '<dfrn:private>1</dfrn:private>' . "\r\n";
if($item['extid'])
$o .= '<dfrn:extid>' . $item['extid'] . '</dfrn:extid>' . "\r\n";
if($item['app'])
$o .= '<statusnet:notice_info local_id="' . $item['id'] . '" source="' . $item['app'] . '" ></statusnet:notice_info>';
$verb = construct_verb($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;
$tags = item_getfeedtags($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";
}
}
$o .= item_getfeedattach($item);
$mentioned = get_mentions($item);
if($mentioned)
$o .= $mentioned;
call_hooks('atom_entry', $o);
$o .= '</entry>' . "\r\n";
return $o;
}
function fix_private_photos($s,$uid) {
$a = get_app();
logger('fix_private_photos');
if(preg_match("/\[img\](.*?)\[\/img\]/is",$s,$matches)) {
$image = $matches[1];
logger('fix_private_photos: found photo ' . $image);
if(stristr($image ,$a->get_baseurl() . '/photo/')) {
$i = basename($image);
$i = str_replace('.jpg','',$i);
$x = strpos($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)) {
logger('replacing photo');
$s = str_replace($image, 'data:image/jpg;base64,' . base64_encode($r[0]['data']), $s);
}
}
logger('fix_private_photos: replaced: ' . $s, LOGGER_DATA);
}
}
return($s);
}
function item_getfeedtags($item) {
$ret = array();
$matches = false;
$cnt = preg_match_all('|\#\[url\=(.*?)\](.*?)\[\/url\]|',$item['tag'],$matches);
if($cnt) {
for($x = 0; $x < count($matches); $x ++) {
if($matches[1][$x])
$ret[] = array('#',$matches[1][$x], $matches[2][$x]);
}
}
$matches = false;
$cnt = preg_match_all('|\@\[url\=(.*?)\](.*?)\[\/url\]|',$item['tag'],$matches);
if($cnt) {
for($x = 0; $x < count($matches); $x ++) {
if($matches[1][$x])
$ret[] = array('#',$matches[1][$x], $matches[2][$x]);
}
}
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=\"(.*?)\" size=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"\[\/attach\]|',$r,$matches);
if($cnt) {
$ret .= '<link rel="enclosure" href="' . xmlify($matches[1]) . '" type="' . xmlify($matches[3]) . '" ';
if(intval($matches[2]))
$ret .= 'size="' . intval($matches[2]) . '" ';
if($matches[4] !== ' ')
$ret .= 'title="' . xmlify(trim($matches[4])) . '" ';
$ret .= ' />' . "\r\n";
}
}
}
return $ret;
}
function item_expire($uid,$days) {
if((! $uid) || (! $days))
return;
$r = q("SELECT * FROM `item`
WHERE `uid` = %d
AND `created` < UTC_TIMESTAMP() - INTERVAL %d DAY
AND `id` = `parent`
AND `deleted` = 0",
intval($uid),
intval($days)
);
if(! count($r))
return;
logger('expire: # items=' . count($r) );
foreach($r as $item) {
// Only expire posts, not photos and photo comments
if(strlen($item['resource-id']))
continue;
$r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s' WHERE `id` = %d LIMIT 1",
dbesc(datetime_convert()),
dbesc(datetime_convert()),
intval($item['id'])
);
// kill the kids
$r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
dbesc(datetime_convert()),
dbesc(datetime_convert()),
dbesc($item['parent-uri']),
intval($item['uid'])
);
}
proc_run('php',"include/notifier.php","expire","$uid");
}
function drop_items($items) {
$uid = 0;
if(count($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","$uid");
}
function drop_item($id,$interactive = true) {
$a = get_app();
// locate item to be deleted
$r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
intval($id)
);
if(! count($r)) {
if(! $interactive)
return 0;
notice( t('Item not found.') . EOL);
goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
}
$item = $r[0];
$owner = $item['uid'];
// check if logged in user is either the author or owner of this item
if((local_user() == $item['uid']) || (remote_user() == $item['contact-id'])) {
// delete the item
$r = q("UPDATE `item` SET `deleted` = 1, `body` = '', `edited` = '%s', `changed` = '%s' WHERE `id` = %d LIMIT 1",
dbesc(datetime_convert()),
dbesc(datetime_convert()),
intval($item['id'])
);
// If item is a link to a photo resource, nuke all the associated photos
// (visitors will not have photo resources)
// 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($item['resource-id'])) {
q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND `uid` = %d ",
dbesc($item['resource-id']),
intval($item['uid'])
);
// ignore the result
}
// If item is a link to an event, nuke the event record.
if(intval($item['event-id'])) {
q("DELETE FROM `event` WHERE `id` = %d AND `uid` = %d LIMIT 1",
intval($item['event-id']),
intval($item['uid'])
);
// ignore the result
}
// If it's the parent of a comment thread, kill all the kids
if($item['uri'] == $item['parent-uri']) {
$r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s', `body` = ''
WHERE `parent-uri` = '%s' AND `uid` = %d ",
dbesc(datetime_convert()),
dbesc(datetime_convert()),
dbesc($item['parent-uri']),
intval($item['uid'])
);
// ignore the result
}
else {
// ensure that last-child is set in case the comment that had it just got wiped.
q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
dbesc(datetime_convert()),
dbesc($item['parent-uri']),
intval($item['uid'])
);
// who is the last child now?
$r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d ORDER BY `edited` DESC LIMIT 1",
dbesc($item['parent-uri']),
intval($item['uid'])
);
if(count($r)) {
q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
intval($r[0]['id'])
);
}
}
$drop_id = intval($item['id']);
// send the notification upstream/downstream as the case may be
if(! $interactive)
return $owner;
proc_run('php',"include/notifier.php","drop","$drop_id");
goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
//NOTREACHED
}
else {
if(! $interactive)
return 0;
notice( t('Permission denied.') . EOL);
goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
//NOTREACHED
}
}