390 lines
13 KiB
PHP
390 lines
13 KiB
PHP
<?php
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function get_feed_for(&$a, $dfrn_id, $owner_id, $last_update) {
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require_once('bbcode.php');
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// default permissions - anonymous user
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$sql_extra = "
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AND `allow_cid` = ''
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AND `allow_gid` = ''
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AND `deny_cid` = ''
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AND `deny_gid` = ''
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";
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if(strlen($owner_id) && ! intval($owner_id)) {
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$r = q("SELECT `uid`, `nickname` FROM `user` WHERE `nickname` = '%s' LIMIT 1",
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dbesc($owner_id)
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);
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if(count($r)) {
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$owner_id = $r[0]['uid'];
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$owner_nick = $r[0]['nickname'];
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}
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}
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$r = q("SELECT * FROM `contact` WHERE `self` = 1 AND `uid` = %d LIMIT 1",
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intval($owner_id)
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);
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if(count($r))
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$owner = $r[0];
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else
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killme();
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if($dfrn_id != '*') {
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$r = q("SELECT * FROM `contact` WHERE ( `issued-id` = '%s' OR ( `duplex` = 1 AND `dfrn-id` = '%s' )) AND `uid` = %d LIMIT 1",
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dbesc($dfrn_id),
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dbesc($dfrn_id),
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intval($owner_id)
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);
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if(! count($r))
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return false;
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$contact = $r[0];
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$groups = init_groups_visitor($contact['id']);
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if(count($groups)) {
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for($x = 0; $x < count($groups); $x ++)
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$groups[$x] = '<' . intval($groups[$x]) . '>' ;
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$gs = implode('|', $groups);
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}
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else
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$gs = '<<>>' ; // Impossible to match
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$sql_extra = sprintf("
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AND ( `allow_cid` = '' OR `allow_cid` REGEXP '<%d>' )
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AND ( `deny_cid` = '' OR NOT `deny_cid` REGEXP '<%d>' )
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AND ( `allow_gid` = '' OR `allow_gid` REGEXP '%s' )
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AND ( `deny_gid` = '' OR NOT `deny_gid` REGEXP '%s')
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",
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intval($contact['id']),
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intval($contact['id']),
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dbesc($gs),
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dbesc($gs)
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);
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}
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if(! strlen($last_update))
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$last_update = 'now - 30 days';
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$check_date = datetime_convert('UTC','UTC',$last_update,'Y-m-d H:i:s');
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$r = q("SELECT `item`.*, `item`.`id` AS `item_id`,
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`contact`.`name`, `contact`.`photo`, `contact`.`url`,
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`contact`.`name-date`, `contact`.`uri-date`, `contact`.`avatar-date`,
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`contact`.`thumb`, `contact`.`dfrn-id`, `contact`.`self`,
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`contact`.`id` AS `contact-id`, `contact`.`uid` AS `contact-uid`
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FROM `item` LEFT JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
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WHERE `item`.`uid` = %d AND `item`.`visible` = 1
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AND NOT `item`.`type` IN ( 'remote', 'net-comment' ) AND `contact`.`blocked` = 0 AND `contact`.`pending` = 0
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AND ( `item`.`edited` > '%s' OR `item`.`changed` > '%s' )
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$sql_extra
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ORDER BY `parent` ASC, `created` ASC LIMIT 0, 300",
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intval($owner_id),
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dbesc($check_date),
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dbesc($check_date)
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);
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if(! count($r))
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killme();
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$items = $r;
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$feed_template = file_get_contents('view/atom_feed.tpl');
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$tomb_template = file_get_contents('view/atom_tomb.tpl');
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$item_template = file_get_contents('view/atom_item.tpl');
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$cmnt_template = file_get_contents('view/atom_cmnt.tpl');
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$atom = '';
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$atom .= replace_macros($feed_template, array(
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'$feed_id' => xmlify($a->get_baseurl() . '/profile/' . $owner_nick),
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'$feed_title' => xmlify($owner['name']),
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'$feed_updated' => xmlify(datetime_convert('UTC', 'UTC', $updated . '+00:00' , ATOM_TIME)) ,
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'$name' => xmlify($owner['name']),
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'$profile_page' => xmlify($owner['url']),
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'$photo' => xmlify($owner['photo']),
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'$thumb' => xmlify($owner['thumb']),
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'$picdate' => xmlify(datetime_convert('UTC','UTC',$owner['avatar-date'] . '+00:00' , ATOM_TIME)) ,
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'$uridate' => xmlify(datetime_convert('UTC','UTC',$owner['uri-date'] . '+00:00' , ATOM_TIME)) ,
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'$namdate' => xmlify(datetime_convert('UTC','UTC',$owner['name-date'] . '+00:00' , ATOM_TIME))
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));
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foreach($items as $item) {
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// public feeds get html, our own nodes use bbcode
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if($dfrn_id == '*') {
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$item['body'] = bbcode($item['body']);
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$type = 'html';
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}
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else {
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$type = 'text';
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}
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if($item['deleted']) {
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$atom .= replace_macros($tomb_template, array(
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'$id' => xmlify($item['uri']),
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'$updated' => xmlify(datetime_convert('UTC', 'UTC', $item['edited'] . '+00:00' , ATOM_TIME))
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));
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}
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else {
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$verb = construct_verb($item);
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$actobj = construct_activity($item);
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if($item['parent'] == $item['id']) {
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$atom .= replace_macros($item_template, array(
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'$name' => xmlify($item['name']),
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'$profile_page' => xmlify($item['url']),
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'$thumb' => xmlify($item['thumb']),
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'$owner_name' => xmlify($item['owner-name']),
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'$owner_profile_page' => xmlify($item['owner-link']),
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'$owner_thumb' => xmlify($item['owner-avatar']),
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'$item_id' => xmlify($item['uri']),
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'$title' => xmlify($item['title']),
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'$published' => xmlify(datetime_convert('UTC', 'UTC', $item['created'] . '+00:00' , ATOM_TIME)),
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'$updated' => xmlify(datetime_convert('UTC', 'UTC', $item['edited'] . '+00:00' , ATOM_TIME)),
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'$location' => xmlify($item['location']),
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'$type' => $type,
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'$content' => xmlify($item['body']),
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'$verb' => xmlify($verb),
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'$actobj' => $actobj, // do not xmlify
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'$comment_allow' => ((($item['last-child']) && ($contact['rel']) && ($contact['rel'] != REL_FAN)) ? 1 : 0)
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));
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}
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else {
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$atom .= replace_macros($cmnt_template, array(
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'$name' => xmlify($item['name']),
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'$profile_page' => xmlify($item['url']),
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'$thumb' => xmlify($item['thumb']),
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'$item_id' => xmlify($item['uri']),
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'$title' => xmlify($item['title']),
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'$published' => xmlify(datetime_convert('UTC', 'UTC', $item['created'] . '+00:00' , ATOM_TIME)),
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'$updated' => xmlify(datetime_convert('UTC', 'UTC', $item['edited'] . '+00:00' , ATOM_TIME)),
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'$type' => $type,
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'$content' => xmlify($item['body']),
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'$verb' => xmlify($verb),
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'$actobj' => $actobj, // do not xmlify
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'$parent_id' => xmlify($item['parent-uri']),
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'$comment_allow' => (($item['last-child']) ? 1 : 0)
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));
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}
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}
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}
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$atom .= '</feed>' . "\r\n";
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return $atom;
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}
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function construct_verb($item) {
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if($item['verb'])
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return $item['verb'];
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return ACTIVITY_POST;
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}
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function construct_activity($item) {
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if($item['type'] == 'activity') {
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}
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return '';
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}
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function get_atom_elements($item) {
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require_once('library/HTMLPurifier.auto.php');
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require_once('include/html2bbcode.php');
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$res = array();
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$raw_author = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'author');
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if($raw_author) {
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if($raw_author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'][0]['attribs']['']['rel'] == 'photo')
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$res['author-avatar'] = unxmlify($raw_author[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'][0]['attribs']['']['href']);
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}
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$author = $item->get_author();
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$res['author-name'] = unxmlify($author->get_name());
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$res['author-link'] = unxmlify($author->get_link());
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if(! $res['author-avatar'])
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$res['author-avatar'] = unxmlify($author->get_avatar());
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$res['uri'] = unxmlify($item->get_id());
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$res['title'] = unxmlify($item->get_title());
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$res['body'] = unxmlify($item->get_content());
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$maxlen = get_max_import_size();
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if($maxlen && (strlen($res['body']) > $maxlen))
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$res['body'] = substr($res['body'],0, $maxlen);
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// It isn't certain at this point whether our content is plaintext or html and we'd be foolish to trust
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// the content type. Our own network only emits text normally, though it might have been converted to
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// html if we used a pubsubhubbub transport. But if we see even one html open tag in our text, we will
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// have to assume it is all html and needs to be purified.
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// It doesn't matter all that much security wise - because before this content is used anywhere, we are
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// going to escape any tags we find regardless, but this lets us import a limited subset of html from
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// the wild, by sanitising it and converting supported tags to bbcode before we rip out any remaining
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// html.
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if(strpos($res['body'],'<')) {
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$res['body'] = preg_replace('#<object[^>]+>.+?' . 'http://www.youtube.com/((?:v|cp)/[A-Za-z0-9\-_=]+).+?</object>#s',
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'[youtube]$1[/youtube]', $res['body']);
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$config = HTMLPurifier_Config::createDefault();
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$config->set('Core.DefinitionCache', null);
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// we shouldn't need a whitelist, because the bbcode converter
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// will strip out any unsupported tags.
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// $config->set('HTML.Allowed', 'p,b,a[href],i');
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$purifier = new HTMLPurifier($config);
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$res['body'] = $purifier->purify($res['body']);
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}
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$res['body'] = html2bbcode($res['body']);
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$allow = $item->get_item_tags(NAMESPACE_DFRN,'comment-allow');
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if($allow && $allow[0]['data'] == 1)
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$res['last-child'] = 1;
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else
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$res['last-child'] = 0;
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$rawcreated = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'published');
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if($rawcreated)
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$res['created'] = unxmlify($rawcreated[0]['data']);
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$rawlocation = $item->get_item_tags(NAMESPACE_DFRN, 'location');
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if($rawlocation)
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$res['location'] = unxmlify($rawlocation[0]['data']);
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$rawedited = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'updated');
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if($rawedited)
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$res['edited'] = unxmlify($rawcreated[0]['data']);
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$rawowner = $item->get_item_tags(NAMESPACE_DFRN, 'owner');
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if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data'])
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$res['owner-name'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']);
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elseif($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data'])
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$res['owner-name'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data']);
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if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data'])
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$res['owner-link'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']);
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elseif($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data'])
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$res['owner-link'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data']);
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if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'][0]['attribs']['']['rel'] == 'photo')
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$res['owner-avatar'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'][0]['attribs']['']['href']);
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elseif($rawowner[0]['child'][NAMESPACE_DFRN]['avatar'][0]['data'])
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$res['owner-avatar'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['avatar'][0]['data']);
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$rawverb = $item->get_item_tags(NAMESPACE_ACTIVITY, 'verb');
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// select between supported verbs
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if($rawverb)
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$res['verb'] = unxmlify($rawverb[0]['data']);
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$rawobj = $item->get_item_tags(NAMESPACE_ACTIVITY, 'object');
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if($rawobj) {
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$res['object-type'] = $rawobj[0]['object-type'][0]['data'];
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$res['object'] = $rawobj[0];
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}
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return $res;
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}
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function post_remote($a,$arr) {
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//print_r($arr);
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if($arr['gravity'])
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$arr['gravity'] = intval($arr['gravity']);
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elseif($arr['parent-uri'] == $arr['uri'])
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$arr['gravity'] = 0;
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elseif($arr['verb'] == ACTIVITY_POST)
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$arr['gravity'] = 6;
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if(! x($arr,'type'))
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$arr['type'] = 'remote';
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$arr['wall'] = ((intval($arr['wall'])) ? 1 : 0);
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$arr['uri'] = notags(trim($arr['uri']));
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$arr['author-name'] = notags(trim($arr['author-name']));
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$arr['author-link'] = notags(trim($arr['author-link']));
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$arr['author-avatar'] = notags(trim($arr['author-avatar']));
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$arr['owner-name'] = notags(trim($arr['owner-name']));
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$arr['owner-link'] = notags(trim($arr['owner-link']));
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$arr['owner-avatar'] = notags(trim($arr['owner-avatar']));
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$arr['created'] = datetime_convert('UTC','UTC',$arr['created'],'Y-m-d H:i:s');
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$arr['edited'] = datetime_convert('UTC','UTC',$arr['edited'],'Y-m-d H:i:s');
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$arr['changed'] = datetime_convert();
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$arr['title'] = notags(trim($arr['title']));
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$arr['location'] = notags(trim($arr['location']));
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$arr['body'] = escape_tags(trim($arr['body']));
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$arr['last-child'] = intval($arr['last-child']);
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$arr['visible'] = 1;
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$arr['deleted'] = 0;
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$arr['parent-uri'] = notags(trim($arr['parent-uri']));
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$arr['verb'] = notags(trim($arr['verb']));
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$arr['object-type'] = notags(trim($arr['object-type']));
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$arr['object'] = trim($arr['object']);
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$parent_id = 0;
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$parent_missing = false;
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dbesc_array($arr);
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$r = q("INSERT INTO `item` (`"
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. implode("`, `", array_keys($arr))
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. "`) VALUES ('"
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. implode("', '", array_values($arr))
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. "')" );
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$r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
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dbesc($arr['parent-uri']),
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intval($arr['uid'])
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);
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if(count($r))
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$parent_id = $r[0]['id'];
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else {
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$parent_missing = true;
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}
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$r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
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$arr['uri'], // already dbesc'd
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intval($arr['uid'])
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);
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if(count($r))
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$current_post = $r[0]['id'];
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else
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return 0;
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if($parent_missing) {
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// perhaps the parent was deleted, but in any case, this thread is dead
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// and unfortunately our brand new item now has to be destroyed
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q("DELETE FROM `item` WHERE `id` = %d LIMIT 1",
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intval($current_post)
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);
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return 0;
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}
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$r = q("UPDATE `item` SET `parent` = %d WHERE `id` = %d LIMIT 1",
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intval($parent_id),
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intval($current_post)
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);
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return $current_post;
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}
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