1057 lines
34 KiB
PHP
1057 lines
34 KiB
PHP
<?php
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/**
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* @file include/dfrn.php
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* @brief The implementation of the dfrn protocol
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*
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* https://github.com/friendica/friendica/wiki/Protocol
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*/
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require_once('include/items.php');
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require_once('include/Contact.php');
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require_once('include/ostatus.php');
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/**
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* @brief This class contain functions to create and send DFRN XML files
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*
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*/
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class dfrn {
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/**
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* @brief Generates the atom entries for delivery.php
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*
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* This function is used whenever content is transmitted via DFRN.
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*
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* @param array $items Item elements
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* @param array $owner Owner record
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*
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* @return string DFRN entries
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*/
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function entries($items,$owner) {
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$doc = new DOMDocument('1.0', 'utf-8');
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$doc->formatOutput = true;
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$root = self::add_header($doc, $owner, "dfrn:owner", "", false);
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if(! count($items))
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return trim($doc->saveXML());
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foreach($items as $item) {
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$entry = self::entry($doc, "text", $item, $owner, $item["entry:comment-allow"], $item["entry:cid"]);
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$root->appendChild($entry);
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}
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return(trim($doc->saveXML()));
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}
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/**
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* @brief Generate an atom feed for the given user
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*
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* This function is called when another server is pulling data from the user feed.
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*
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* @param string $dfrn_id DFRN ID from the requesting party
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* @param string $owner_nick Owner nick name
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* @param string $last_update Date of the last update
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* @param int $direction Can be -1, 0 or 1.
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*
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* @return string DFRN feed entries
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*/
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function feed($dfrn_id, $owner_nick, $last_update, $direction = 0) {
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$a = get_app();
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$sitefeed = ((strlen($owner_nick)) ? false : true); // not yet implemented, need to rewrite huge chunks of following logic
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$public_feed = (($dfrn_id) ? false : true);
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$starred = false; // not yet implemented, possible security issues
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$converse = false;
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if($public_feed && $a->argc > 2) {
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for($x = 2; $x < $a->argc; $x++) {
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if($a->argv[$x] == 'converse')
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$converse = true;
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if($a->argv[$x] == 'starred')
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$starred = true;
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if($a->argv[$x] === 'category' && $a->argc > ($x + 1) && strlen($a->argv[$x+1]))
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$category = $a->argv[$x+1];
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}
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}
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// default permissions - anonymous user
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$sql_extra = " AND `item`.`allow_cid` = '' AND `item`.`allow_gid` = '' AND `item`.`deny_cid` = '' AND `item`.`deny_gid` = '' ";
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$r = q("SELECT `contact`.*, `user`.`uid` AS `user_uid`, `user`.`nickname`, `user`.`timezone`, `user`.`page-flags`
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FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
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WHERE `contact`.`self` = 1 AND `user`.`nickname` = '%s' LIMIT 1",
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dbesc($owner_nick)
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);
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if(! count($r))
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killme();
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$owner = $r[0];
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$owner_id = $owner['user_uid'];
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$owner_nick = $owner['nickname'];
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$sql_post_table = "";
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$visibility = "";
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if(! $public_feed) {
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$sql_extra = '';
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switch($direction) {
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case (-1):
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$sql_extra = sprintf(" AND `issued-id` = '%s' ", dbesc($dfrn_id));
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$my_id = $dfrn_id;
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break;
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case 0:
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$sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
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$my_id = '1:' . $dfrn_id;
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break;
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case 1:
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$sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
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$my_id = '0:' . $dfrn_id;
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break;
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default:
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return false;
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break; // NOTREACHED
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}
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$r = q("SELECT * FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 AND `contact`.`uid` = %d $sql_extra LIMIT 1",
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intval($owner_id)
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);
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if(! count($r))
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killme();
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$contact = $r[0];
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require_once('include/security.php');
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$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('|', $groups);
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} else
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$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($gs)
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);
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}
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if($public_feed)
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$sort = 'DESC';
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else
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$sort = 'ASC';
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$date_field = "`changed`";
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$sql_order = "`item`.`parent` ".$sort.", `item`.`created` ASC";
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if(! strlen($last_update))
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$last_update = 'now -30 days';
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if(isset($category)) {
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$sql_post_table = sprintf("INNER JOIN (SELECT `oid` FROM `term` WHERE `term` = '%s' AND `otype` = %d AND `type` = %d AND `uid` = %d ORDER BY `tid` DESC) AS `term` ON `item`.`id` = `term`.`oid` ",
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dbesc(protect_sprintf($category)), intval(TERM_OBJ_POST), intval(TERM_CATEGORY), intval($owner_id));
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//$sql_extra .= file_tag_file_query('item',$category,'category');
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}
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if($public_feed) {
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if(! $converse)
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$sql_extra .= " AND `contact`.`self` = 1 ";
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}
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$check_date = datetime_convert('UTC','UTC',$last_update,'Y-m-d H:i:s');
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// AND ( `item`.`edited` > '%s' OR `item`.`changed` > '%s' )
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// dbesc($check_date),
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$r = q("SELECT STRAIGHT_JOIN `item`.*, `item`.`id` AS `item_id`,
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`contact`.`name`, `contact`.`network`, `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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`sign`.`signed_text`, `sign`.`signature`, `sign`.`signer`
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FROM `item` $sql_post_table
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INNER JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
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AND `contact`.`blocked` = 0 AND `contact`.`pending` = 0
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LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id`
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WHERE `item`.`uid` = %d AND `item`.`visible` = 1 and `item`.`moderated` = 0 AND `item`.`parent` != 0
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AND ((`item`.`wall` = 1) $visibility) AND `item`.$date_field > '%s'
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$sql_extra
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ORDER BY $sql_order LIMIT 0, 300",
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intval($owner_id),
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dbesc($check_date),
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dbesc($sort)
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);
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// Will check further below if this actually returned results.
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// We will provide an empty feed if that is the case.
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$items = $r;
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$doc = new DOMDocument('1.0', 'utf-8');
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$doc->formatOutput = true;
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$alternatelink = $owner['url'];
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if(isset($category))
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$alternatelink .= "/category/".$category;
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if ($public_feed)
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$author = "dfrn:owner";
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else
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$author = "author";
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$root = self::add_header($doc, $owner, $author, $alternatelink, true);
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// This hook can't work anymore
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// call_hooks('atom_feed', $atom);
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if(! count($items)) {
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$atom = trim($doc->saveXML());
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call_hooks('atom_feed_end', $atom);
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return $atom;
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}
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foreach($items as $item) {
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// prevent private email from leaking.
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if($item['network'] === NETWORK_MAIL)
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continue;
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// public feeds get html, our own nodes use bbcode
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if($public_feed) {
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$type = 'html';
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// catch any email that's in a public conversation and make sure it doesn't leak
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if($item['private'])
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continue;
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} else
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$type = 'text';
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$entry = self::entry($doc, $type, $item, $owner, true);
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$root->appendChild($entry);
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}
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$atom = trim($doc->saveXML());
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call_hooks('atom_feed_end', $atom);
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return $atom;
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}
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/**
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* @brief Create XML text for DFRN mails
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*
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* @param array $item message elements
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* @param array $owner Owner record
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*
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* @return string DFRN mail
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*/
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function mail($item, $owner) {
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$doc = new DOMDocument('1.0', 'utf-8');
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$doc->formatOutput = true;
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$root = self::add_header($doc, $owner, "dfrn:owner", "", false);
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$mail = $doc->createElement("dfrn:mail");
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$sender = $doc->createElement("dfrn:sender");
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xml_add_element($doc, $sender, "dfrn:name", $owner['name']);
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xml_add_element($doc, $sender, "dfrn:uri", $owner['url']);
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xml_add_element($doc, $sender, "dfrn:avatar", $owner['thumb']);
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$mail->appendChild($sender);
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xml_add_element($doc, $mail, "dfrn:id", $item['uri']);
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xml_add_element($doc, $mail, "dfrn:in-reply-to", $item['parent-uri']);
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xml_add_element($doc, $mail, "dfrn:sentdate", datetime_convert('UTC', 'UTC', $item['created'] . '+00:00' , ATOM_TIME));
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xml_add_element($doc, $mail, "dfrn:subject", $item['title']);
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xml_add_element($doc, $mail, "dfrn:content", $item['body']);
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$root->appendChild($mail);
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return(trim($doc->saveXML()));
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}
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/**
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* @brief Create XML text for DFRN friend suggestions
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*
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* @param array $item suggestion elements
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* @param array $owner Owner record
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*
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* @return string DFRN suggestions
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*/
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function fsuggest($item, $owner) {
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$doc = new DOMDocument('1.0', 'utf-8');
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$doc->formatOutput = true;
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$root = self::add_header($doc, $owner, "dfrn:owner", "", false);
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$suggest = $doc->createElement("dfrn:suggest");
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xml_add_element($doc, $suggest, "dfrn:url", $item['url']);
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xml_add_element($doc, $suggest, "dfrn:name", $item['name']);
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xml_add_element($doc, $suggest, "dfrn:photo", $item['photo']);
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xml_add_element($doc, $suggest, "dfrn:request", $item['request']);
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xml_add_element($doc, $suggest, "dfrn:note", $item['note']);
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$root->appendChild($suggest);
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return(trim($doc->saveXML()));
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}
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/**
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* @brief Create XML text for DFRN relocations
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*
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* @param array $owner Owner record
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* @param int $uid User ID
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*
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* @return string DFRN relocations
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*/
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function relocate($owner, $uid) {
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/* get site pubkey. this could be a new installation with no site keys*/
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$pubkey = get_config('system','site_pubkey');
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if(! $pubkey) {
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$res = new_keypair(1024);
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set_config('system','site_prvkey', $res['prvkey']);
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set_config('system','site_pubkey', $res['pubkey']);
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}
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$rp = q("SELECT `resource-id` , `scale`, type FROM `photo`
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WHERE `profile` = 1 AND `uid` = %d ORDER BY scale;", $uid);
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$photos = array();
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$ext = Photo::supportedTypes();
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foreach($rp as $p)
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$photos[$p['scale']] = app::get_baseurl().'/photo/'.$p['resource-id'].'-'.$p['scale'].'.'.$ext[$p['type']];
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unset($rp, $ext);
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$doc = new DOMDocument('1.0', 'utf-8');
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$doc->formatOutput = true;
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$root = self::add_header($doc, $owner, "dfrn:owner", "", false);
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$relocate = $doc->createElement("dfrn:relocate");
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xml_add_element($doc, $relocate, "dfrn:url", $owner['url']);
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xml_add_element($doc, $relocate, "dfrn:name", $owner['name']);
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xml_add_element($doc, $relocate, "dfrn:photo", $photos[4]);
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xml_add_element($doc, $relocate, "dfrn:thumb", $photos[5]);
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xml_add_element($doc, $relocate, "dfrn:micro", $photos[6]);
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xml_add_element($doc, $relocate, "dfrn:request", $owner['request']);
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xml_add_element($doc, $relocate, "dfrn:confirm", $owner['confirm']);
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xml_add_element($doc, $relocate, "dfrn:notify", $owner['notify']);
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xml_add_element($doc, $relocate, "dfrn:poll", $owner['poll']);
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xml_add_element($doc, $relocate, "dfrn:sitepubkey", get_config('system','site_pubkey'));
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$root->appendChild($relocate);
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return(trim($doc->saveXML()));
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}
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/**
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* @brief Adds the header elements for the DFRN protocol
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*
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* @param object $doc XML document
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* @param array $owner Owner record
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* @param string $authorelement Element name for the author
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* @param string $alternatelink link to profile or category
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* @param bool $public Is it a header for public posts?
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*
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* @return object XML root object
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*/
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private function add_header($doc, $owner, $authorelement, $alternatelink = "", $public = false) {
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if ($alternatelink == "")
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$alternatelink = $owner['url'];
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$root = $doc->createElementNS(NS_ATOM, 'feed');
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$doc->appendChild($root);
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$root->setAttribute("xmlns:thr", NS_THR);
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$root->setAttribute("xmlns:at", "http://purl.org/atompub/tombstones/1.0");
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$root->setAttribute("xmlns:media", NS_MEDIA);
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$root->setAttribute("xmlns:dfrn", "http://purl.org/macgirvin/dfrn/1.0");
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$root->setAttribute("xmlns:activity", NS_ACTIVITY);
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$root->setAttribute("xmlns:georss", NS_GEORSS);
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$root->setAttribute("xmlns:poco", NS_POCO);
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$root->setAttribute("xmlns:ostatus", NS_OSTATUS);
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$root->setAttribute("xmlns:statusnet", NS_STATUSNET);
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xml_add_element($doc, $root, "id", app::get_baseurl()."/profile/".$owner["nick"]);
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xml_add_element($doc, $root, "title", $owner["name"]);
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$attributes = array("uri" => "https://friendi.ca", "version" => FRIENDICA_VERSION."-".DB_UPDATE_VERSION);
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xml_add_element($doc, $root, "generator", FRIENDICA_PLATFORM, $attributes);
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$attributes = array("rel" => "license", "href" => "http://creativecommons.org/licenses/by/3.0/");
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xml_add_element($doc, $root, "link", "", $attributes);
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$attributes = array("rel" => "alternate", "type" => "text/html", "href" => $alternatelink);
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xml_add_element($doc, $root, "link", "", $attributes);
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if ($public) {
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// DFRN itself doesn't uses this. But maybe someone else wants to subscribe to the public feed.
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ostatus_hublinks($doc, $root);
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$attributes = array("rel" => "salmon", "href" => app::get_baseurl()."/salmon/".$owner["nick"]);
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xml_add_element($doc, $root, "link", "", $attributes);
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$attributes = array("rel" => "http://salmon-protocol.org/ns/salmon-replies", "href" => app::get_baseurl()."/salmon/".$owner["nick"]);
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xml_add_element($doc, $root, "link", "", $attributes);
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$attributes = array("rel" => "http://salmon-protocol.org/ns/salmon-mention", "href" => app::get_baseurl()."/salmon/".$owner["nick"]);
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xml_add_element($doc, $root, "link", "", $attributes);
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}
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if ($owner['page-flags'] == PAGE_COMMUNITY)
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xml_add_element($doc, $root, "dfrn:community", 1);
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/// @todo We need a way to transmit the different page flags like "PAGE_PRVGROUP"
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xml_add_element($doc, $root, "updated", datetime_convert("UTC", "UTC", "now", ATOM_TIME));
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$author = self::add_author($doc, $owner, $authorelement, $public);
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$root->appendChild($author);
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return $root;
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}
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/**
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* @brief Adds the author element in the header for the DFRN protocol
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*
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* @param object $doc XML document
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* @param array $owner Owner record
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* @param string $authorelement Element name for the author
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*
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* @return object XML author object
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*/
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private function add_author($doc, $owner, $authorelement, $public) {
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$author = $doc->createElement($authorelement);
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$namdate = datetime_convert('UTC', 'UTC', $owner['name-date'].'+00:00' , ATOM_TIME);
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$uridate = datetime_convert('UTC', 'UTC', $owner['uri-date'].'+00:00', ATOM_TIME);
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$picdate = datetime_convert('UTC', 'UTC', $owner['avatar-date'].'+00:00', ATOM_TIME);
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$attributes = array("dfrn:updated" => $namdate);
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xml_add_element($doc, $author, "name", $owner["name"], $attributes);
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$attributes = array("dfrn:updated" => $namdate);
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xml_add_element($doc, $author, "uri", app::get_baseurl().'/profile/'.$owner["nickname"], $attributes);
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$attributes = array("dfrn:updated" => $namdate);
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xml_add_element($doc, $author, "dfrn:handle", $owner["addr"], $attributes);
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|
|
$attributes = array("rel" => "photo", "type" => "image/jpeg", "dfrn:updated" => $picdate,
|
|
"media:width" => 175, "media:height" => 175, "href" => $owner['photo']);
|
|
xml_add_element($doc, $author, "link", "", $attributes);
|
|
|
|
$attributes = array("rel" => "avatar", "type" => "image/jpeg", "dfrn:updated" => $picdate,
|
|
"media:width" => 175, "media:height" => 175, "href" => $owner['photo']);
|
|
xml_add_element($doc, $author, "link", "", $attributes);
|
|
|
|
$birthday = feed_birthday($owner['user_uid'], $owner['timezone']);
|
|
|
|
if ($birthday)
|
|
xml_add_element($doc, $author, "dfrn:birthday", $birthday);
|
|
|
|
// The following fields will only be generated if this isn't for a public feed
|
|
if ($public)
|
|
return $author;
|
|
|
|
// Only show contact details when we are allowed to
|
|
$r = q("SELECT `profile`.`about`, `profile`.`name`, `profile`.`homepage`, `user`.`nickname`, `user`.`timezone`,
|
|
`profile`.`locality`, `profile`.`region`, `profile`.`country-name`, `profile`.`pub_keywords`, `profile`.`dob`
|
|
FROM `profile`
|
|
INNER JOIN `user` ON `user`.`uid` = `profile`.`uid`
|
|
WHERE `profile`.`is-default` AND NOT `user`.`hidewall` AND `user`.`uid` = %d",
|
|
intval($owner['user_uid']));
|
|
if ($r) {
|
|
$profile = $r[0];
|
|
xml_add_element($doc, $author, "poco:displayName", $profile["name"]);
|
|
xml_add_element($doc, $author, "poco:updated", $namdate);
|
|
|
|
if (trim($profile["dob"]) != "0000-00-00")
|
|
xml_add_element($doc, $author, "poco:birthday", "0000-".date("m-d", strtotime($profile["dob"])));
|
|
|
|
xml_add_element($doc, $author, "poco:note", $profile["about"]);
|
|
xml_add_element($doc, $author, "poco:preferredUsername", $profile["nickname"]);
|
|
|
|
$savetz = date_default_timezone_get();
|
|
date_default_timezone_set($profile["timezone"]);
|
|
xml_add_element($doc, $author, "poco:utcOffset", date("P"));
|
|
date_default_timezone_set($savetz);
|
|
|
|
if (trim($profile["homepage"]) != "") {
|
|
$urls = $doc->createElement("poco:urls");
|
|
xml_add_element($doc, $urls, "poco:type", "homepage");
|
|
xml_add_element($doc, $urls, "poco:value", $profile["homepage"]);
|
|
xml_add_element($doc, $urls, "poco:primary", "true");
|
|
$author->appendChild($urls);
|
|
}
|
|
|
|
if (trim($profile["pub_keywords"]) != "") {
|
|
$keywords = explode(",", $profile["pub_keywords"]);
|
|
|
|
foreach ($keywords AS $keyword)
|
|
xml_add_element($doc, $author, "poco:tags", trim($keyword));
|
|
|
|
}
|
|
|
|
/// @todo When we are having the XMPP address in the profile we should propagate it here
|
|
$xmpp = "";
|
|
if (trim($xmpp) != "") {
|
|
$ims = $doc->createElement("poco:ims");
|
|
xml_add_element($doc, $ims, "poco:type", "xmpp");
|
|
xml_add_element($doc, $ims, "poco:value", $xmpp);
|
|
xml_add_element($doc, $ims, "poco:primary", "true");
|
|
$author->appendChild($ims);
|
|
}
|
|
|
|
if (trim($profile["locality"].$profile["region"].$profile["country-name"]) != "") {
|
|
$element = $doc->createElement("poco:address");
|
|
|
|
xml_add_element($doc, $element, "poco:formatted", formatted_location($profile));
|
|
|
|
if (trim($profile["locality"]) != "")
|
|
xml_add_element($doc, $element, "poco:locality", $profile["locality"]);
|
|
|
|
if (trim($profile["region"]) != "")
|
|
xml_add_element($doc, $element, "poco:region", $profile["region"]);
|
|
|
|
if (trim($profile["country-name"]) != "")
|
|
xml_add_element($doc, $element, "poco:country", $profile["country-name"]);
|
|
|
|
$author->appendChild($element);
|
|
}
|
|
}
|
|
|
|
return $author;
|
|
}
|
|
|
|
/**
|
|
* @brief Adds the author elements in the "entry" elements of the DFRN protocol
|
|
*
|
|
* @param object $doc XML document
|
|
* @param string $element Element name for the author
|
|
* @param string $contact_url Link of the contact
|
|
* @param array $items Item elements
|
|
*
|
|
* @return object XML author object
|
|
*/
|
|
private function add_entry_author($doc, $element, $contact_url, $item) {
|
|
|
|
$contact = get_contact_details_by_url($contact_url, $item["uid"]);
|
|
|
|
$author = $doc->createElement($element);
|
|
xml_add_element($doc, $author, "name", $contact["name"]);
|
|
xml_add_element($doc, $author, "uri", $contact["url"]);
|
|
xml_add_element($doc, $author, "dfrn:handle", $contact["addr"]);
|
|
|
|
/// @Todo
|
|
/// - Check real image type and image size
|
|
/// - Check which of these boths elements we should use
|
|
$attributes = array(
|
|
"rel" => "photo",
|
|
"type" => "image/jpeg",
|
|
"media:width" => 80,
|
|
"media:height" => 80,
|
|
"href" => $contact["photo"]);
|
|
xml_add_element($doc, $author, "link", "", $attributes);
|
|
|
|
$attributes = array(
|
|
"rel" => "avatar",
|
|
"type" => "image/jpeg",
|
|
"media:width" => 80,
|
|
"media:height" => 80,
|
|
"href" => $contact["photo"]);
|
|
xml_add_element($doc, $author, "link", "", $attributes);
|
|
|
|
return $author;
|
|
}
|
|
|
|
/**
|
|
* @brief Adds the activity elements
|
|
*
|
|
* @param object $doc XML document
|
|
* @param string $element Element name for the activity
|
|
* @param string $activity activity value
|
|
*
|
|
* @return object XML activity object
|
|
*/
|
|
private function create_activity($doc, $element, $activity) {
|
|
|
|
if($activity) {
|
|
$entry = $doc->createElement($element);
|
|
|
|
$r = parse_xml_string($activity, false);
|
|
if(!$r)
|
|
return false;
|
|
if($r->type)
|
|
xml_add_element($doc, $entry, "activity:object-type", $r->type);
|
|
if($r->id)
|
|
xml_add_element($doc, $entry, "id", $r->id);
|
|
if($r->title)
|
|
xml_add_element($doc, $entry, "title", $r->title);
|
|
if($r->link) {
|
|
if(substr($r->link,0,1) === '<') {
|
|
if(strstr($r->link,'&') && (! strstr($r->link,'&')))
|
|
$r->link = str_replace('&','&', $r->link);
|
|
|
|
$r->link = preg_replace('/\<link(.*?)\"\>/','<link$1"/>',$r->link);
|
|
|
|
$data = parse_xml_string($r->link, false);
|
|
foreach ($data->attributes() AS $parameter => $value)
|
|
$attributes[$parameter] = $value;
|
|
} else
|
|
$attributes = array("rel" => "alternate", "type" => "text/html", "href" => $r->link);
|
|
|
|
xml_add_element($doc, $entry, "link", "", $attributes);
|
|
}
|
|
if($r->content)
|
|
xml_add_element($doc, $entry, "content", bbcode($r->content), array("type" => "html"));
|
|
|
|
return $entry;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* @brief Adds the elements for attachments
|
|
*
|
|
* @param object $doc XML document
|
|
* @param object $root XML root
|
|
* @param array $item Item element
|
|
*
|
|
* @return object XML attachment object
|
|
*/
|
|
private function get_attachment($doc, $root, $item) {
|
|
$arr = explode('[/attach],',$item['attach']);
|
|
if(count($arr)) {
|
|
foreach($arr as $r) {
|
|
$matches = false;
|
|
$cnt = preg_match('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"|',$r,$matches);
|
|
if($cnt) {
|
|
$attributes = array("rel" => "enclosure",
|
|
"href" => $matches[1],
|
|
"type" => $matches[3]);
|
|
|
|
if(intval($matches[2]))
|
|
$attributes["length"] = intval($matches[2]);
|
|
|
|
if(trim($matches[4]) != "")
|
|
$attributes["title"] = trim($matches[4]);
|
|
|
|
xml_add_element($doc, $root, "link", "", $attributes);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @brief Adds the "entry" elements for the DFRN protocol
|
|
*
|
|
* @param object $doc XML document
|
|
* @param string $type "text" or "html"
|
|
* @param array $item Item element
|
|
* @param array $owner Owner record
|
|
* @param bool $comment Trigger the sending of the "comment" element
|
|
* @param int $cid Contact ID of the recipient
|
|
*
|
|
* @return object XML entry object
|
|
*/
|
|
private function entry($doc, $type, $item, $owner, $comment = false, $cid = 0) {
|
|
|
|
$mentioned = array();
|
|
|
|
if(!$item['parent'])
|
|
return;
|
|
|
|
if($item['deleted']) {
|
|
$attributes = array("ref" => $item['uri'], "when" => datetime_convert('UTC','UTC',$item['edited'] . '+00:00',ATOM_TIME));
|
|
return xml_create_element($doc, "at:deleted-entry", "", $attributes);
|
|
}
|
|
|
|
$entry = $doc->createElement("entry");
|
|
|
|
if($item['allow_cid'] || $item['allow_gid'] || $item['deny_cid'] || $item['deny_gid'])
|
|
$body = fix_private_photos($item['body'],$owner['uid'],$item,$cid);
|
|
else
|
|
$body = $item['body'];
|
|
|
|
if ($type == 'html') {
|
|
$htmlbody = $body;
|
|
|
|
if ($item['title'] != "")
|
|
$htmlbody = "[b]".$item['title']."[/b]\n\n".$htmlbody;
|
|
|
|
$htmlbody = bbcode($htmlbody, false, false, 7);
|
|
}
|
|
|
|
$author = self::add_entry_author($doc, "author", $item["author-link"], $item);
|
|
$entry->appendChild($author);
|
|
|
|
$dfrnowner = self::add_entry_author($doc, "dfrn:owner", $item["owner-link"], $item);
|
|
$entry->appendChild($dfrnowner);
|
|
|
|
if(($item['parent'] != $item['id']) || ($item['parent-uri'] !== $item['uri']) || (($item['thr-parent'] !== '') && ($item['thr-parent'] !== $item['uri']))) {
|
|
$parent = q("SELECT `guid` FROM `item` WHERE `id` = %d", intval($item["parent"]));
|
|
$parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
|
|
$attributes = array("ref" => $parent_item, "type" => "text/html",
|
|
"href" => app::get_baseurl().'/display/'.$parent[0]['guid'],
|
|
"dfrn:diaspora_guid" => $parent[0]['guid']);
|
|
xml_add_element($doc, $entry, "thr:in-reply-to", "", $attributes);
|
|
}
|
|
|
|
xml_add_element($doc, $entry, "id", $item["uri"]);
|
|
xml_add_element($doc, $entry, "title", $item["title"]);
|
|
|
|
xml_add_element($doc, $entry, "published", datetime_convert("UTC","UTC",$item["created"]."+00:00",ATOM_TIME));
|
|
xml_add_element($doc, $entry, "updated", datetime_convert("UTC","UTC",$item["edited"]."+00:00",ATOM_TIME));
|
|
|
|
// "dfrn:env" is used to read the content
|
|
xml_add_element($doc, $entry, "dfrn:env", base64url_encode($body, true));
|
|
|
|
// The "content" field is not read by the receiver. We could remove it when the type is "text"
|
|
// We keep it at the moment, maybe there is some old version that doesn't read "dfrn:env"
|
|
xml_add_element($doc, $entry, "content", (($type === 'html') ? $htmlbody : $body), array("type" => $type));
|
|
|
|
// We save this value in "plink". Maybe we should read it from there as well?
|
|
xml_add_element($doc, $entry, "link", "", array("rel" => "alternate", "type" => "text/html",
|
|
"href" => app::get_baseurl()."/display/".$item["guid"]));
|
|
|
|
// "comment-allow" is some old fashioned stuff for old Friendica versions.
|
|
// It is included in the rewritten code for completeness
|
|
if ($comment)
|
|
xml_add_element($doc, $entry, "dfrn:comment-allow", intval($item['last-child']));
|
|
|
|
if($item['location'])
|
|
xml_add_element($doc, $entry, "dfrn:location", $item['location']);
|
|
|
|
if($item['coord'])
|
|
xml_add_element($doc, $entry, "georss:point", $item['coord']);
|
|
|
|
if(($item['private']) || strlen($item['allow_cid']) || strlen($item['allow_gid']) || strlen($item['deny_cid']) || strlen($item['deny_gid']))
|
|
xml_add_element($doc, $entry, "dfrn:private", (($item['private']) ? $item['private'] : 1));
|
|
|
|
if($item['extid'])
|
|
xml_add_element($doc, $entry, "dfrn:extid", $item['extid']);
|
|
|
|
if($item['bookmark'])
|
|
xml_add_element($doc, $entry, "dfrn:bookmark", "true");
|
|
|
|
if($item['app'])
|
|
xml_add_element($doc, $entry, "statusnet:notice_info", "", array("local_id" => $item['id'], "source" => $item['app']));
|
|
|
|
xml_add_element($doc, $entry, "dfrn:diaspora_guid", $item["guid"]);
|
|
|
|
// The signed text contains the content in Markdown, the sender handle and the signatur for the content
|
|
// It is needed for relayed comments to Diaspora.
|
|
if($item['signed_text']) {
|
|
$sign = base64_encode(json_encode(array('signed_text' => $item['signed_text'],'signature' => $item['signature'],'signer' => $item['signer'])));
|
|
xml_add_element($doc, $entry, "dfrn:diaspora_signature", $sign);
|
|
}
|
|
|
|
xml_add_element($doc, $entry, "activity:verb", construct_verb($item));
|
|
|
|
if ($item['object-type'] != "")
|
|
xml_add_element($doc, $entry, "activity:object-type", $item['object-type']);
|
|
elseif ($item['id'] == $item['parent'])
|
|
xml_add_element($doc, $entry, "activity:object-type", ACTIVITY_OBJ_NOTE);
|
|
else
|
|
xml_add_element($doc, $entry, "activity:object-type", ACTIVITY_OBJ_COMMENT);
|
|
|
|
$actobj = self::create_activity($doc, "activity:object", $item['object']);
|
|
if ($actobj)
|
|
$entry->appendChild($actobj);
|
|
|
|
$actarg = self::create_activity($doc, "activity:target", $item['target']);
|
|
if ($actarg)
|
|
$entry->appendChild($actarg);
|
|
|
|
$tags = item_getfeedtags($item);
|
|
|
|
if(count($tags)) {
|
|
foreach($tags as $t)
|
|
if (($type != 'html') OR ($t[0] != "@"))
|
|
xml_add_element($doc, $entry, "category", "", array("scheme" => "X-DFRN:".$t[0].":".$t[1], "term" => $t[2]));
|
|
}
|
|
|
|
if(count($tags))
|
|
foreach($tags as $t)
|
|
if ($t[0] == "@")
|
|
$mentioned[$t[1]] = $t[1];
|
|
|
|
foreach ($mentioned AS $mention) {
|
|
$r = q("SELECT `forum`, `prv` FROM `contact` WHERE `uid` = %d AND `nurl` = '%s'",
|
|
intval($owner["uid"]),
|
|
dbesc(normalise_link($mention)));
|
|
if ($r[0]["forum"] OR $r[0]["prv"])
|
|
xml_add_element($doc, $entry, "link", "", array("rel" => "mentioned",
|
|
"ostatus:object-type" => ACTIVITY_OBJ_GROUP,
|
|
"href" => $mention));
|
|
else
|
|
xml_add_element($doc, $entry, "link", "", array("rel" => "mentioned",
|
|
"ostatus:object-type" => ACTIVITY_OBJ_PERSON,
|
|
"href" => $mention));
|
|
}
|
|
|
|
self::get_attachment($doc, $entry, $item);
|
|
|
|
return $entry;
|
|
}
|
|
|
|
/**
|
|
* @brief Delivers the atom content to the contacts
|
|
*
|
|
* @param array $owner Owner record
|
|
* @param array $contactr Contact record of the receiver
|
|
* @param string $atom Content that will be transmitted
|
|
* @param bool $dissolve (to be documented)
|
|
*
|
|
* @return int Deliver status. -1 means an error.
|
|
*/
|
|
function deliver($owner,$contact,$atom, $dissolve = false) {
|
|
|
|
$a = get_app();
|
|
|
|
$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 = get_config('system','rino_encrypt');
|
|
$rino = intval($rino);
|
|
// use RINO1 if mcrypt isn't installed and RINO2 was selected
|
|
if ($rino==2 and !function_exists('mcrypt_create_iv')) $rino=1;
|
|
|
|
logger("Local rino version: ". $rino, LOGGER_DEBUG);
|
|
|
|
$ssl_val = intval(get_config('system','ssl_policy'));
|
|
$ssl_policy = '';
|
|
|
|
switch($ssl_val){
|
|
case SSL_POLICY_FULL:
|
|
$ssl_policy = 'full';
|
|
break;
|
|
case SSL_POLICY_SELFSIGN:
|
|
$ssl_policy = 'self';
|
|
break;
|
|
case SSL_POLICY_NONE:
|
|
default:
|
|
$ssl_policy = 'none';
|
|
break;
|
|
}
|
|
|
|
$url = $contact['notify'] . '&dfrn_id=' . $idtosend . '&dfrn_version=' . DFRN_PROTOCOL_VERSION . (($rino) ? '&rino='.$rino : '');
|
|
|
|
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, LOGGER_DATA);
|
|
|
|
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);
|
|
$perm = (($res->perm) ? $res->perm : null);
|
|
$dfrn_version = (float) (($res->dfrn_version) ? $res->dfrn_version : 2.0);
|
|
$rino_remote_version = intval($res->rino);
|
|
$page = (($owner['page-flags'] == PAGE_COMMUNITY) ? 1 : 0);
|
|
|
|
logger("Remote rino version: ".$rino_remote_version." for ".$contact["url"], LOGGER_DEBUG);
|
|
|
|
if($owner['page-flags'] == PAGE_PRVGROUP)
|
|
$page = 2;
|
|
|
|
$final_dfrn_id = '';
|
|
|
|
if($perm) {
|
|
if((($perm == 'rw') && (! intval($contact['writable'])))
|
|
|| (($perm == 'r') && (intval($contact['writable'])))) {
|
|
q("update contact set writable = %d where id = %d",
|
|
intval(($perm == 'rw') ? 1 : 0),
|
|
intval($contact['id'])
|
|
);
|
|
$contact['writable'] = (string) 1 - intval($contact['writable']);
|
|
}
|
|
}
|
|
|
|
if(($contact['duplex'] && strlen($contact['pubkey']))
|
|
|| ($owner['page-flags'] == PAGE_COMMUNITY && strlen($contact['pubkey']))
|
|
|| ($contact['rel'] == CONTACT_IS_SHARING && strlen($contact['pubkey']))) {
|
|
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'] != CONTACT_IS_SHARING) && (! $contact['blocked'])) || ($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';
|
|
}
|
|
|
|
$postvars['ssl_policy'] = $ssl_policy;
|
|
|
|
if($page)
|
|
$postvars['page'] = $page;
|
|
|
|
|
|
if($rino>0 && $rino_remote_version>0 && (! $dissolve)) {
|
|
logger('rino version: '. $rino_remote_version);
|
|
|
|
switch($rino_remote_version) {
|
|
case 1:
|
|
// Deprecated rino version!
|
|
$key = substr(random_string(),0,16);
|
|
$data = aes_encrypt($postvars['data'],$key);
|
|
break;
|
|
case 2:
|
|
// RINO 2 based on php-encryption
|
|
try {
|
|
$key = Crypto::createNewRandomKey();
|
|
} catch (CryptoTestFailed $ex) {
|
|
logger('Cannot safely create a key');
|
|
return -1;
|
|
} catch (CannotPerformOperation $ex) {
|
|
logger('Cannot safely create a key');
|
|
return -1;
|
|
}
|
|
try {
|
|
$data = Crypto::encrypt($postvars['data'], $key);
|
|
} catch (CryptoTestFailed $ex) {
|
|
logger('Cannot safely perform encryption');
|
|
return -1;
|
|
} catch (CannotPerformOperation $ex) {
|
|
logger('Cannot safely perform encryption');
|
|
return -1;
|
|
}
|
|
break;
|
|
default:
|
|
logger("rino: invalid requested verision '$rino_remote_version'");
|
|
return -1;
|
|
}
|
|
|
|
$postvars['rino'] = $rino_remote_version;
|
|
$postvars['data'] = bin2hex($data);
|
|
|
|
#logger('rino: sent key = ' . $key, LOGGER_DEBUG);
|
|
|
|
|
|
if($dfrn_version >= 2.1) {
|
|
if(($contact['duplex'] && strlen($contact['pubkey']))
|
|
|| ($owner['page-flags'] == PAGE_COMMUNITY && strlen($contact['pubkey']))
|
|
|| ($contact['rel'] == CONTACT_IS_SHARING && strlen($contact['pubkey'])))
|
|
|
|
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(($curl_stat == 503) && (stristr($a->get_curl_headers(),'retry-after')))
|
|
return(-1);
|
|
|
|
if(strpos($xml,'<?xml') === false) {
|
|
logger('dfrn_deliver: phase 2: no valid XML returned');
|
|
logger('dfrn_deliver: phase 2: returned XML: ' . $xml, LOGGER_DATA);
|
|
return 3;
|
|
}
|
|
|
|
if($contact['term-date'] != '0000-00-00 00:00:00') {
|
|
logger("dfrn_deliver: $url back from the dead - removing mark for death");
|
|
require_once('include/Contact.php');
|
|
unmark_for_death($contact);
|
|
}
|
|
|
|
$res = parse_xml_string($xml);
|
|
|
|
return $res->status;
|
|
}
|
|
}
|