mirror of https://github.com/friendica/friendica
258 lines
6.5 KiB
PHP
258 lines
6.5 KiB
PHP
<?php
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require_once('simplepie/simplepie.inc');
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function get_atom_elements($item) {
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$res = array();
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$author = $item->get_author();
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$res['remote-name'] = $author->get_name();
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$res['remote-link'] = $author->get_link();
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$res['remote-avatar'] = $author->get_avatar();
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$res['remote-id'] = $item->get_id();
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$res['title'] = $item->get_title();
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$res['body'] = $item->get_content();
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if(strlen($res['body']) > 100000)
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$res['body'] = substr($res['body'],0,10000) . "\r\n[Extremely large post truncated.]\r\n" ;
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$allow = $item->get_item_tags('http://purl.org/macgirvin/dfrn/1.0','comment-allow');
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if($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'] = $rawcreated[0]['data'];
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$rawedited = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'updated');
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if($rawedited)
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$res['edited'] = $rawcreated[0]['data'];
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return $res;
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}
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function post_remote($arr) {
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$arr['hash'] = random_string();
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$arr['type'] = 'remote';
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$arr['remote-name'] = notags(trim($arr['remote-name']));
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$arr['remote-link'] = notags(trim($arr['remote-link']));
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$arr['remote-avatar'] = notags(trim($arr['remote-avatar']));
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if(! strlen($arr['remote-avatar']))
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$arr['remote-avatar'] = $a->get_baseurl() . '/images/default-profile-sm.jpg';
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$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['title'] = notags(trim($arr['title']));
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$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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$arr['deleted'] = 0;
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$parent = $arr['parent_urn'];
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unset($arr['parent_urn']);
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$parent_id = 0;
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dbesc_array($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 `remote-id` = '%s' AND `uid` = %d LIMIT 1",
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dbesc($parent),
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intval($arr['uid'])
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);
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if(count($r))
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$parent_id = $r[0]['id'];
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$r = q("SELECT `id` FROM `item` WHERE `remote-id` = '%s' AND `uid` = %d LIMIT 1",
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$arr['remote-id'],
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intval($arr['uid'])
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);
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if(count($r))
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$current_post = $r[0]['id'];
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$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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}
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function dfrn_notify_post(&$a) {
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dbg(3);
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$dfrn_id = notags(trim($_POST['dfrn_id']));
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$challenge = notags(trim($_POST['challenge']));
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$data = $_POST['data'];
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$r = q("SELECT * FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
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dbesc($dfrn_id),
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dbesc($challenge)
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);
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if(! count($r))
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xml_status(3);
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$r = q("DELETE FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
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dbesc($dfrn_id),
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dbesc($challenge)
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);
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// find the local user who owns this relationship.
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$r = q("SELECT `id`, `uid` FROM `contact` WHERE `issued-id` = '%s' LIMIT 1",
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dbesc($dfrn_id)
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);
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if(! count($r))
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xml_status(3);
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$importer = $r[0];
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$feed = new SimplePie();
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$feed->set_raw_data($data);
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$feed->enable_order_by_date(false);
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$feed->init();
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foreach($feed->get_items() as $item) {
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$rawdelete = $item->get_item_tags("http://purl.org/atompub/tombstones/1.0", 'deleted-entry');
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print_r($rawdelete);
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if($deleted) {
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// pick out ref and when from attribs
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// check hasn't happened already, verify ownership and then process it
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continue;
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}
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$is_reply = false;
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$item_id = $item->get_id();
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$rawthread = $item->get_item_tags("http://purl.org/syndication/thread/1.0",'in-reply-to');
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if(isset($rawthread[0]['attribs']['']['ref'])) {
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$is_reply = true;
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$parent_urn = $rawthread[0]['attribs']['']['ref'];
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}
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if($is_reply) {
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if($x == ($total_items - 1)) {
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// remote reply to our post. Import and then notify everybody else.
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}
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else {
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// regular comment that is part of this total conversation. Have we seen it? If not, import it.
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$item_id = $item->get_id();
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$r = q("SELECT `uid`, `last-child` FROM `item` WHERE `remote-id` = '%s' AND `uid` = %d LIMIT 1",
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dbesc($item_id),
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intval($importer['uid'])
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);
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if(count($r)) {
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$allow = $item->get_item_tags('http://purl.org/macgirvin/dfrn/1.0','comment-allow');
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if($allow && $allow[0]['data'] != $r[0]['last-child']) {
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$r = q("UPDATE `item` SET `last-child` = %d WHERE `remote-id` = '%s' AND `uid` = %d LIMIT 1",
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intval($allow[0]['data']),
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dbesc($item_id)
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);
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}
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continue;
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}
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$datarray = get_atom_elements($item);
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$datarray['parent_urn'] = $parent_urn;
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$datarray['uid'] = $importer['uid'];
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$datarray['contact-id'] = $importer['id'];
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$r = post_remote($datarray);
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continue;
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}
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}
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else {
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// Head post of a conversation. Have we seen it? If not, import it.
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$item_id = $item->get_id();
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$r = q("SELECT `uid` FROM `item` WHERE `remote-id` = '%s' AND `uid` = %d LIMIT 1",
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dbesc($item_id),
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intval($importer['uid'])
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);
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if(count($r)) {
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$allow = $item->get_item_tags('http://purl.org/macgirvin/dfrn/1.0','comment-allow');
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if($allow && $allow[0]['data'] != $r[0]['last-child']) {
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$r = q("UPDATE `item` SET `last-child` = %d WHERE `remote-id` = '%s' AND `uid` = %d LIMIT 1",
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intval($allow[0]['data']),
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dbesc($item_id)
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);
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}
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continue;
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}
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$datarray = get_atom_elements($item);
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$datarray['parent_urn'] = $item_id;
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$datarray['uid'] = $importer['uid'];
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$datarray['contact-id'] = $importer['id'];
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$r = post_remote($datarray);
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continue;
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}
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}
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killme();
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}
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function dfrn_notify_content(&$a) {
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if(x($_GET,'dfrn_id')) {
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// initial communication from external contact
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$hash = random_string();
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$status = 0;
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$r = q("DELETE FROM `challenge` WHERE `expire` < " . intval(time()));
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$r = q("INSERT INTO `challenge` ( `challenge`, `dfrn-id`, `expire` )
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VALUES( '%s', '%s', '%s') ",
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dbesc($hash),
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dbesc(notags(trim($_GET['dfrn_id']))),
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intval(time() + 60 )
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);
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$r = q("SELECT * FROM `contact` WHERE `issued-id` = '%s' AND `blocked` = 0 LIMIT 1",
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dbesc($_GET['dfrn_id']));
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if((! count($r)) || (! strlen($r[0]['prvkey'])))
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$status = 1;
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$challenge = '';
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openssl_private_encrypt($hash,$challenge,$r[0]['prvkey']);
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$challenge = bin2hex($challenge);
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echo '<?xml version="1.0" encoding="UTF-8"?><dfrn_notify><status>' .$status . '</status><dfrn_id>' . $_GET['dfrn_id'] . '</dfrn_id>'
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. '<challenge>' . $challenge . '</challenge></dfrn_notify>' . "\r\n" ;
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session_write_close();
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exit;
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}
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} |