formatOutput = true; $root = self::addHeader($doc, $owner, "dfrn:owner", "", false); if (! count($items)) { return trim($doc->saveXML()); } foreach ($items as $item) { $entry = self::entry($doc, "text", $item, $owner, $item["entry:comment-allow"], $item["entry:cid"]); $root->appendChild($entry); } return trim($doc->saveXML()); } /** * @brief Generate an atom feed for the given user * * This function is called when another server is pulling data from the user feed. * * @param string $dfrn_id DFRN ID from the requesting party * @param string $owner_nick Owner nick name * @param string $last_update Date of the last update * @param int $direction Can be -1, 0 or 1. * @param boolean $onlyheader Output only the header without content? (Default is "no") * * @return string DFRN feed entries */ public static function feed($dfrn_id, $owner_nick, $last_update, $direction = 0, $onlyheader = false) { $a = get_app(); $sitefeed = ((strlen($owner_nick)) ? false : true); // not yet implemented, need to rewrite huge chunks of following logic $public_feed = (($dfrn_id) ? false : true); $starred = false; // not yet implemented, possible security issues $converse = false; if ($public_feed && $a->argc > 2) { for ($x = 2; $x < $a->argc; $x++) { if ($a->argv[$x] == 'converse') { $converse = true; } if ($a->argv[$x] == 'starred') { $starred = true; } if ($a->argv[$x] == 'category' && $a->argc > ($x + 1) && strlen($a->argv[$x+1])) { $category = $a->argv[$x+1]; } } } // default permissions - anonymous user $sql_extra = " AND `item`.`allow_cid` = '' AND `item`.`allow_gid` = '' AND `item`.`deny_cid` = '' AND `item`.`deny_gid` = '' "; $r = q( "SELECT `contact`.*, `user`.`nickname`, `user`.`timezone`, `user`.`page-flags`, `user`.`account-type` FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid` WHERE `contact`.`self` AND `user`.`nickname` = '%s' LIMIT 1", dbesc($owner_nick) ); if (! DBM::is_result($r)) { logger(sprintf('No contact found for nickname=%d', $owner_nick), LOGGER_WARNING); killme(); } $owner = $r[0]; $owner_id = $owner['uid']; $owner_nick = $owner['nickname']; $sql_post_table = ""; if (! $public_feed) { $sql_extra = ''; switch ($direction) { case (-1): $sql_extra = sprintf(" AND `issued-id` = '%s' ", dbesc($dfrn_id)); $my_id = $dfrn_id; break; case 0: $sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id)); $my_id = '1:' . $dfrn_id; break; case 1: $sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id)); $my_id = '0:' . $dfrn_id; break; default: return false; break; // NOTREACHED } $r = q( "SELECT * FROM `contact` WHERE NOT `blocked` AND `contact`.`uid` = %d $sql_extra LIMIT 1", intval($owner_id) ); if (! DBM::is_result($r)) { logger(sprintf('No contact found for uid=%d', $owner_id), LOGGER_WARNING); killme(); } $contact = $r[0]; include_once 'include/security.php'; $groups = Group::getIdsByContactId($contact['id']); if (count($groups)) { for ($x = 0; $x < count($groups); $x ++) { $groups[$x] = '<' . intval($groups[$x]) . '>' ; } $gs = implode('|', $groups); } else { $gs = '<<>>' ; // Impossible to match } $sql_extra = sprintf( " AND ( `allow_cid` = '' OR `allow_cid` REGEXP '<%d>' ) AND ( `deny_cid` = '' OR NOT `deny_cid` REGEXP '<%d>' ) AND ( `allow_gid` = '' OR `allow_gid` REGEXP '%s' ) AND ( `deny_gid` = '' OR NOT `deny_gid` REGEXP '%s') ", intval($contact['id']), intval($contact['id']), dbesc($gs), dbesc($gs) ); } if ($public_feed) { $sort = 'DESC'; } else { $sort = 'ASC'; } if (! strlen($last_update)) { $last_update = 'now -30 days'; } if (isset($category)) { $sql_post_table = sprintf( "INNER JOIN (SELECT `oid` FROM `term` WHERE `term` = '%s' AND `otype` = %d AND `type` = %d AND `uid` = %d ORDER BY `tid` DESC) AS `term` ON `item`.`id` = `term`.`oid` ", dbesc(protect_sprintf($category)), intval(TERM_OBJ_POST), intval(TERM_CATEGORY), intval($owner_id) ); //$sql_extra .= file_tag_file_query('item',$category,'category'); } if ($public_feed && ! $converse) { $sql_extra .= " AND `contact`.`self` = 1 "; } $check_date = DateTimeFormat::utc($last_update); $r = q( "SELECT `item`.`id` FROM `item` USE INDEX (`uid_wall_changed`) $sql_post_table STRAIGHT_JOIN `contact` ON `contact`.`id` = `item`.`contact-id` WHERE `item`.`uid` = %d AND `item`.`wall` AND `item`.`changed` > '%s' $sql_extra ORDER BY `item`.`parent` ".$sort.", `item`.`created` ASC LIMIT 0, 300", intval($owner_id), dbesc($check_date), dbesc($sort) ); $ids = []; foreach ($r as $item) { $ids[] = $item['id']; } $condition = ['id' => $ids]; $fields = ['author-id', 'uid', 'id', 'parent', 'uri', 'thr-parent', 'parent-uri', 'created', 'edited', 'verb', 'object-type', 'guid', 'private', 'title', 'body', 'location', 'coord', 'app', 'attach', 'object', 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid', 'extid', 'target', 'tag', 'bookmark', 'deleted', 'author-link', 'owner-link', 'signed_text', 'signature', 'signer']; $ret = Item::select($owner_id, $fields, $condition); $items = dba::inArray($ret); /* * Will check further below if this actually returned results. * We will provide an empty feed if that is the case. */ $doc = new DOMDocument('1.0', 'utf-8'); $doc->formatOutput = true; $alternatelink = $owner['url']; if (isset($category)) { $alternatelink .= "/category/".$category; } if ($public_feed) { $author = "dfrn:owner"; } else { $author = "author"; } $root = self::addHeader($doc, $owner, $author, $alternatelink, true); /// @TODO This hook can't work anymore // Addon::callHooks('atom_feed', $atom); if (!DBM::is_result($items) || $onlyheader) { $atom = trim($doc->saveXML()); Addon::callHooks('atom_feed_end', $atom); return $atom; } foreach ($items as $item) { // prevent private email from leaking. if ($item['network'] == NETWORK_MAIL) { continue; } // public feeds get html, our own nodes use bbcode if ($public_feed) { $type = 'html'; // catch any email that's in a public conversation and make sure it doesn't leak if ($item['private']) { continue; } } else { $type = 'text'; } $entry = self::entry($doc, $type, $item, $owner, true); $root->appendChild($entry); } $atom = trim($doc->saveXML()); Addon::callHooks('atom_feed_end', $atom); return $atom; } /** * @brief Generate an atom entry for a given item id * * @param int $item_id The item id * @param boolean $conversation Show the conversation. If false show the single post. * * @return string DFRN feed entry */ public static function itemFeed($item_id, $conversation = false) { if ($conversation) { $condition = ['parent' => $item_id]; } else { $condition = ['id' => $item_id]; } $fields = ['author-id', 'uid', 'id', 'parent', 'uri', 'thr-parent', 'parent-uri', 'created', 'edited', 'verb', 'object-type', 'guid', 'private', 'title', 'body', 'location', 'coord', 'app', 'attach', 'object', 'allow_cid', 'allow_gid', 'deny_cid', 'deny_gid', 'extid', 'target', 'tag', 'bookmark', 'deleted', 'author-link', 'owner-link', 'signed_text', 'signature', 'signer']; $ret = Item::select(0, $fields, $condition); $items = dba::inArray($ret); if (!DBM::is_result($items)) { killme(); } $item = $items[0]; if ($item['uid'] != 0) { $owner = User::getOwnerDataById($item['uid']); if (!$owner) { killme(); } } else { $owner = ['uid' => 0, 'nick' => 'feed-item']; } $doc = new DOMDocument('1.0', 'utf-8'); $doc->formatOutput = true; $type = 'html'; if ($conversation) { $root = $doc->createElementNS(NAMESPACE_ATOM1, 'feed'); $doc->appendChild($root); $root->setAttribute("xmlns:thr", NAMESPACE_THREAD); $root->setAttribute("xmlns:at", NAMESPACE_TOMB); $root->setAttribute("xmlns:media", NAMESPACE_MEDIA); $root->setAttribute("xmlns:dfrn", NAMESPACE_DFRN); $root->setAttribute("xmlns:activity", NAMESPACE_ACTIVITY); $root->setAttribute("xmlns:georss", NAMESPACE_GEORSS); $root->setAttribute("xmlns:poco", NAMESPACE_POCO); $root->setAttribute("xmlns:ostatus", NAMESPACE_OSTATUS); $root->setAttribute("xmlns:statusnet", NAMESPACE_STATUSNET); //$root = self::addHeader($doc, $owner, "dfrn:owner", "", false); foreach ($items as $item) { $entry = self::entry($doc, $type, $item, $owner, true, 0); $root->appendChild($entry); } } else { $root = self::entry($doc, $type, $item, $owner, true, 0, true); } $atom = trim($doc->saveXML()); return $atom; } /** * @brief Create XML text for DFRN mails * * @param array $item message elements * @param array $owner Owner record * * @return string DFRN mail * @todo Find proper type-hints */ public static function mail($item, $owner) { $doc = new DOMDocument('1.0', 'utf-8'); $doc->formatOutput = true; $root = self::addHeader($doc, $owner, "dfrn:owner", "", false); $mail = $doc->createElement("dfrn:mail"); $sender = $doc->createElement("dfrn:sender"); XML::addElement($doc, $sender, "dfrn:name", $owner['name']); XML::addElement($doc, $sender, "dfrn:uri", $owner['url']); XML::addElement($doc, $sender, "dfrn:avatar", $owner['thumb']); $mail->appendChild($sender); XML::addElement($doc, $mail, "dfrn:id", $item['uri']); XML::addElement($doc, $mail, "dfrn:in-reply-to", $item['parent-uri']); XML::addElement($doc, $mail, "dfrn:sentdate", DateTimeFormat::utc($item['created'] . '+00:00', DateTimeFormat::ATOM)); XML::addElement($doc, $mail, "dfrn:subject", $item['title']); XML::addElement($doc, $mail, "dfrn:content", $item['body']); $root->appendChild($mail); return trim($doc->saveXML()); } /** * @brief Create XML text for DFRN friend suggestions * * @param array $item suggestion elements * @param array $owner Owner record * * @return string DFRN suggestions * @todo Find proper type-hints */ public static function fsuggest($item, $owner) { $doc = new DOMDocument('1.0', 'utf-8'); $doc->formatOutput = true; $root = self::addHeader($doc, $owner, "dfrn:owner", "", false); $suggest = $doc->createElement("dfrn:suggest"); XML::addElement($doc, $suggest, "dfrn:url", $item['url']); XML::addElement($doc, $suggest, "dfrn:name", $item['name']); XML::addElement($doc, $suggest, "dfrn:photo", $item['photo']); XML::addElement($doc, $suggest, "dfrn:request", $item['request']); XML::addElement($doc, $suggest, "dfrn:note", $item['note']); $root->appendChild($suggest); return trim($doc->saveXML()); } /** * @brief Create XML text for DFRN relocations * * @param array $owner Owner record * @param int $uid User ID * * @return string DFRN relocations * @todo Find proper type-hints */ public static function relocate($owner, $uid) { /* get site pubkey. this could be a new installation with no site keys*/ $pubkey = Config::get('system', 'site_pubkey'); if (! $pubkey) { $res = Crypto::newKeypair(1024); Config::set('system', 'site_prvkey', $res['prvkey']); Config::set('system', 'site_pubkey', $res['pubkey']); } $rp = q( "SELECT `resource-id` , `scale`, type FROM `photo` WHERE `profile` = 1 AND `uid` = %d ORDER BY scale;", $uid ); $photos = []; $ext = Image::supportedTypes(); foreach ($rp as $p) { $photos[$p['scale']] = System::baseUrl().'/photo/'.$p['resource-id'].'-'.$p['scale'].'.'.$ext[$p['type']]; } $doc = new DOMDocument('1.0', 'utf-8'); $doc->formatOutput = true; $root = self::addHeader($doc, $owner, "dfrn:owner", "", false); $relocate = $doc->createElement("dfrn:relocate"); XML::addElement($doc, $relocate, "dfrn:url", $owner['url']); XML::addElement($doc, $relocate, "dfrn:name", $owner['name']); XML::addElement($doc, $relocate, "dfrn:addr", $owner['addr']); XML::addElement($doc, $relocate, "dfrn:avatar", $owner['avatar']); XML::addElement($doc, $relocate, "dfrn:photo", $photos[4]); XML::addElement($doc, $relocate, "dfrn:thumb", $photos[5]); XML::addElement($doc, $relocate, "dfrn:micro", $photos[6]); XML::addElement($doc, $relocate, "dfrn:request", $owner['request']); XML::addElement($doc, $relocate, "dfrn:confirm", $owner['confirm']); XML::addElement($doc, $relocate, "dfrn:notify", $owner['notify']); XML::addElement($doc, $relocate, "dfrn:poll", $owner['poll']); XML::addElement($doc, $relocate, "dfrn:sitepubkey", Config::get('system', 'site_pubkey')); $root->appendChild($relocate); return trim($doc->saveXML()); } /** * @brief Adds the header elements for the DFRN protocol * * @param object $doc XML document * @param array $owner Owner record * @param string $authorelement Element name for the author * @param string $alternatelink link to profile or category * @param bool $public Is it a header for public posts? * * @return object XML root object * @todo Find proper type-hints */ private static function addHeader($doc, $owner, $authorelement, $alternatelink = "", $public = false) { if ($alternatelink == "") { $alternatelink = $owner['url']; } $root = $doc->createElementNS(NAMESPACE_ATOM1, 'feed'); $doc->appendChild($root); $root->setAttribute("xmlns:thr", NAMESPACE_THREAD); $root->setAttribute("xmlns:at", NAMESPACE_TOMB); $root->setAttribute("xmlns:media", NAMESPACE_MEDIA); $root->setAttribute("xmlns:dfrn", NAMESPACE_DFRN); $root->setAttribute("xmlns:activity", NAMESPACE_ACTIVITY); $root->setAttribute("xmlns:georss", NAMESPACE_GEORSS); $root->setAttribute("xmlns:poco", NAMESPACE_POCO); $root->setAttribute("xmlns:ostatus", NAMESPACE_OSTATUS); $root->setAttribute("xmlns:statusnet", NAMESPACE_STATUSNET); XML::addElement($doc, $root, "id", System::baseUrl()."/profile/".$owner["nick"]); XML::addElement($doc, $root, "title", $owner["name"]); $attributes = ["uri" => "https://friendi.ca", "version" => FRIENDICA_VERSION."-".DB_UPDATE_VERSION]; XML::addElement($doc, $root, "generator", FRIENDICA_PLATFORM, $attributes); $attributes = ["rel" => "license", "href" => "http://creativecommons.org/licenses/by/3.0/"]; XML::addElement($doc, $root, "link", "", $attributes); $attributes = ["rel" => "alternate", "type" => "text/html", "href" => $alternatelink]; XML::addElement($doc, $root, "link", "", $attributes); if ($public) { // DFRN itself doesn't uses this. But maybe someone else wants to subscribe to the public feed. OStatus::hublinks($doc, $root, $owner["nick"]); $attributes = ["rel" => "salmon", "href" => System::baseUrl()."/salmon/".$owner["nick"]]; XML::addElement($doc, $root, "link", "", $attributes); $attributes = ["rel" => "http://salmon-protocol.org/ns/salmon-replies", "href" => System::baseUrl()."/salmon/".$owner["nick"]]; XML::addElement($doc, $root, "link", "", $attributes); $attributes = ["rel" => "http://salmon-protocol.org/ns/salmon-mention", "href" => System::baseUrl()."/salmon/".$owner["nick"]]; XML::addElement($doc, $root, "link", "", $attributes); } // For backward compatibility we keep this element if ($owner['page-flags'] == PAGE_COMMUNITY) { XML::addElement($doc, $root, "dfrn:community", 1); } // The former element is replaced by this one XML::addElement($doc, $root, "dfrn:account_type", $owner["account-type"]); /// @todo We need a way to transmit the different page flags like "PAGE_PRVGROUP" XML::addElement($doc, $root, "updated", DateTimeFormat::utcNow(DateTimeFormat::ATOM)); $author = self::addAuthor($doc, $owner, $authorelement, $public); $root->appendChild($author); return $root; } /** * @brief Adds the author element in the header for the DFRN protocol * * @param object $doc XML document * @param array $owner Owner record * @param string $authorelement Element name for the author * @param boolean $public boolean * * @return object XML author object * @todo Find proper type-hints */ private static function addAuthor($doc, $owner, $authorelement, $public) { // Is the profile hidden or shouldn't be published in the net? Then add the "hide" element $r = q( "SELECT `id` FROM `profile` INNER JOIN `user` ON `user`.`uid` = `profile`.`uid` WHERE (`hidewall` OR NOT `net-publish`) AND `user`.`uid` = %d", intval($owner['uid']) ); if (DBM::is_result($r)) { $hidewall = true; } else { $hidewall = false; } $author = $doc->createElement($authorelement); $namdate = DateTimeFormat::utc($owner['name-date'].'+00:00', DateTimeFormat::ATOM); $uridate = DateTimeFormat::utc($owner['uri-date'].'+00:00', DateTimeFormat::ATOM); $picdate = DateTimeFormat::utc($owner['avatar-date'].'+00:00', DateTimeFormat::ATOM); $attributes = []; if (!$public || !$hidewall) { $attributes = ["dfrn:updated" => $namdate]; } XML::addElement($doc, $author, "name", $owner["name"], $attributes); XML::addElement($doc, $author, "uri", System::baseUrl().'/profile/'.$owner["nickname"], $attributes); XML::addElement($doc, $author, "dfrn:handle", $owner["addr"], $attributes); $attributes = ["rel" => "photo", "type" => "image/jpeg", "media:width" => 175, "media:height" => 175, "href" => $owner['photo']]; if (!$public || !$hidewall) { $attributes["dfrn:updated"] = $picdate; } XML::addElement($doc, $author, "link", "", $attributes); $attributes["rel"] = "avatar"; XML::addElement($doc, $author, "link", "", $attributes); if ($hidewall) { XML::addElement($doc, $author, "dfrn:hide", "true"); } // The following fields will only be generated if the data isn't meant for a public feed if ($public) { return $author; } $birthday = feed_birthday($owner['uid'], $owner['timezone']); if ($birthday) { XML::addElement($doc, $author, "dfrn:birthday", $birthday); } // Only show contact details when we are allowed to $r = q( "SELECT `profile`.`about`, `profile`.`name`, `profile`.`homepage`, `user`.`nickname`, `user`.`timezone`, `profile`.`locality`, `profile`.`region`, `profile`.`country-name`, `profile`.`pub_keywords`, `profile`.`xmpp`, `profile`.`dob` FROM `profile` INNER JOIN `user` ON `user`.`uid` = `profile`.`uid` WHERE `profile`.`is-default` AND NOT `user`.`hidewall` AND `user`.`uid` = %d", intval($owner['uid']) ); if (DBM::is_result($r)) { $profile = $r[0]; XML::addElement($doc, $author, "poco:displayName", $profile["name"]); XML::addElement($doc, $author, "poco:updated", $namdate); if (trim($profile["dob"]) > '0001-01-01') { XML::addElement($doc, $author, "poco:birthday", "0000-".date("m-d", strtotime($profile["dob"]))); } XML::addElement($doc, $author, "poco:note", $profile["about"]); XML::addElement($doc, $author, "poco:preferredUsername", $profile["nickname"]); $savetz = date_default_timezone_get(); date_default_timezone_set($profile["timezone"]); XML::addElement($doc, $author, "poco:utcOffset", date("P")); date_default_timezone_set($savetz); if (trim($profile["homepage"]) != "") { $urls = $doc->createElement("poco:urls"); XML::addElement($doc, $urls, "poco:type", "homepage"); XML::addElement($doc, $urls, "poco:value", $profile["homepage"]); XML::addElement($doc, $urls, "poco:primary", "true"); $author->appendChild($urls); } if (trim($profile["pub_keywords"]) != "") { $keywords = explode(",", $profile["pub_keywords"]); foreach ($keywords as $keyword) { XML::addElement($doc, $author, "poco:tags", trim($keyword)); } } if (trim($profile["xmpp"]) != "") { $ims = $doc->createElement("poco:ims"); XML::addElement($doc, $ims, "poco:type", "xmpp"); XML::addElement($doc, $ims, "poco:value", $profile["xmpp"]); XML::addElement($doc, $ims, "poco:primary", "true"); $author->appendChild($ims); } if (trim($profile["locality"].$profile["region"].$profile["country-name"]) != "") { $element = $doc->createElement("poco:address"); XML::addElement($doc, $element, "poco:formatted", Profile::formatLocation($profile)); if (trim($profile["locality"]) != "") { XML::addElement($doc, $element, "poco:locality", $profile["locality"]); } if (trim($profile["region"]) != "") { XML::addElement($doc, $element, "poco:region", $profile["region"]); } if (trim($profile["country-name"]) != "") { XML::addElement($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 $item Item elements * * @return object XML author object * @todo Find proper type-hints */ private static function addEntryAuthor($doc, $element, $contact_url, $item) { $contact = Contact::getDetailsByURL($contact_url, $item["uid"]); $author = $doc->createElement($element); XML::addElement($doc, $author, "name", $contact["name"]); XML::addElement($doc, $author, "uri", $contact["url"]); XML::addElement($doc, $author, "dfrn:handle", $contact["addr"]); /// @Todo /// - Check real image type and image size /// - Check which of these boths elements we should use $attributes = [ "rel" => "photo", "type" => "image/jpeg", "media:width" => 80, "media:height" => 80, "href" => $contact["photo"]]; XML::addElement($doc, $author, "link", "", $attributes); $attributes = [ "rel" => "avatar", "type" => "image/jpeg", "media:width" => 80, "media:height" => 80, "href" => $contact["photo"]]; XML::addElement($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 $activity activity value * * @return object XML activity object * @todo Find proper type-hints */ private static function createActivity($doc, $element, $activity) { if ($activity) { $entry = $doc->createElement($element); $r = XML::parseString($activity, false); if (!$r) { return false; } if ($r->type) { XML::addElement($doc, $entry, "activity:object-type", $r->type); } if ($r->id) { XML::addElement($doc, $entry, "id", $r->id); } if ($r->title) { XML::addElement($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('/\/', '', $r->link); // XML does need a single element as root element so we add a dummy element here $data = XML::parseString("" . $r->link . "", false); if (is_object($data)) { foreach ($data->link as $link) { $attributes = []; foreach ($link->attributes() as $parameter => $value) { $attributes[$parameter] = $value; } XML::addElement($doc, $entry, "link", "", $attributes); } } } else { $attributes = ["rel" => "alternate", "type" => "text/html", "href" => $r->link]; XML::addElement($doc, $entry, "link", "", $attributes); } } if ($r->content) { XML::addElement($doc, $entry, "content", BBCode::convert($r->content), ["type" => "html"]); } return $entry; } return false; } /** * @brief Adds the elements for attachments * * @param object $doc XML document * @param object $root XML root * @param array $item Item element * * @return object XML attachment object * @todo Find proper type-hints */ private static function getAttachment($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 = ["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::addElement($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 * @param bool $single If set, the entry is created as an XML document with a single "entry" element * * @return object XML entry object * @todo Find proper type-hints */ private static function entry($doc, $type, array $item, array $owner, $comment = false, $cid = 0, $single = false) { $mentioned = []; if (!$item['parent']) { return; } if ($item['deleted']) { $attributes = ["ref" => $item['uri'], "when" => DateTimeFormat::utc($item['edited'] . '+00:00', DateTimeFormat::ATOM)]; return XML::createElement($doc, "at:deleted-entry", "", $attributes); } if (!$single) { $entry = $doc->createElement("entry"); } else { $entry = $doc->createElementNS(NAMESPACE_ATOM1, 'entry'); $doc->appendChild($entry); $entry->setAttribute("xmlns:thr", NAMESPACE_THREAD); $entry->setAttribute("xmlns:at", NAMESPACE_TOMB); $entry->setAttribute("xmlns:media", NAMESPACE_MEDIA); $entry->setAttribute("xmlns:dfrn", NAMESPACE_DFRN); $entry->setAttribute("xmlns:activity", NAMESPACE_ACTIVITY); $entry->setAttribute("xmlns:georss", NAMESPACE_GEORSS); $entry->setAttribute("xmlns:poco", NAMESPACE_POCO); $entry->setAttribute("xmlns:ostatus", NAMESPACE_OSTATUS); $entry->setAttribute("xmlns:statusnet", NAMESPACE_STATUSNET); } if ($item['allow_cid'] || $item['allow_gid'] || $item['deny_cid'] || $item['deny_gid']) { $body = Item::fixPrivatePhotos($item['body'], $owner['uid'], $item, $cid); } else { $body = $item['body']; } // Remove the abstract element. It is only locally important. $body = BBCode::stripAbstract($body); $htmlbody = ''; if ($type == 'html') { $htmlbody = $body; if ($item['title'] != "") { $htmlbody = "[b]" . $item['title'] . "[/b]\n\n" . $htmlbody; } $htmlbody = BBCode::convert($htmlbody, false, 7); } $author = self::addEntryAuthor($doc, "author", $item["author-link"], $item); $entry->appendChild($author); $dfrnowner = self::addEntryAuthor($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']))) { $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']); $parent = q("SELECT `guid`,`plink` FROM `item` WHERE `uri` = '%s' AND `uid` = %d", dbesc($parent_item), intval($item['uid'])); $attributes = ["ref" => $parent_item, "type" => "text/html", "href" => $parent[0]['plink'], "dfrn:diaspora_guid" => $parent[0]['guid']]; XML::addElement($doc, $entry, "thr:in-reply-to", "", $attributes); } // Add conversation data. This is used for OStatus $conversation_href = System::baseUrl()."/display/".$owner["nick"]."/".$item["parent"]; $conversation_uri = $conversation_href; if (isset($parent_item)) { $r = dba::fetch_first("SELECT `conversation-uri`, `conversation-href` FROM `conversation` WHERE `item-uri` = ?", $item['parent-uri']); if (DBM::is_result($r)) { if ($r['conversation-uri'] != '') { $conversation_uri = $r['conversation-uri']; } if ($r['conversation-href'] != '') { $conversation_href = $r['conversation-href']; } } } $attributes = [ "href" => $conversation_href, "ref" => $conversation_uri]; XML::addElement($doc, $entry, "ostatus:conversation", $conversation_uri, $attributes); XML::addElement($doc, $entry, "id", $item["uri"]); XML::addElement($doc, $entry, "title", $item["title"]); XML::addElement($doc, $entry, "published", DateTimeFormat::utc($item["created"] . "+00:00", DateTimeFormat::ATOM)); XML::addElement($doc, $entry, "updated", DateTimeFormat::utc($item["edited"] . "+00:00", DateTimeFormat::ATOM)); // "dfrn:env" is used to read the content XML::addElement($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::addElement($doc, $entry, "content", (($type == 'html') ? $htmlbody : $body), ["type" => $type]); // We save this value in "plink". Maybe we should read it from there as well? XML::addElement( $doc, $entry, "link", "", ["rel" => "alternate", "type" => "text/html", "href" => System::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::addElement($doc, $entry, "dfrn:comment-allow", 1); } if ($item['location']) { XML::addElement($doc, $entry, "dfrn:location", $item['location']); } if ($item['coord']) { XML::addElement($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::addElement($doc, $entry, "dfrn:private", (($item['private']) ? $item['private'] : 1)); } if ($item['extid']) { XML::addElement($doc, $entry, "dfrn:extid", $item['extid']); } if ($item['bookmark']) { XML::addElement($doc, $entry, "dfrn:bookmark", "true"); } if ($item['app']) { XML::addElement($doc, $entry, "statusnet:notice_info", "", ["local_id" => $item['id'], "source" => $item['app']]); } XML::addElement($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(['signed_text' => $item['signed_text'],'signature' => $item['signature'],'signer' => $item['signer']])); XML::addElement($doc, $entry, "dfrn:diaspora_signature", $sign); } XML::addElement($doc, $entry, "activity:verb", self::constructVerb($item)); if ($item['object-type'] != "") { XML::addElement($doc, $entry, "activity:object-type", $item['object-type']); } elseif ($item['id'] == $item['parent']) { XML::addElement($doc, $entry, "activity:object-type", ACTIVITY_OBJ_NOTE); } else { XML::addElement($doc, $entry, "activity:object-type", ACTIVITY_OBJ_COMMENT); } $actobj = self::createActivity($doc, "activity:object", $item['object']); if ($actobj) { $entry->appendChild($actobj); } $actarg = self::createActivity($doc, "activity:target", $item['target']); if ($actarg) { $entry->appendChild($actarg); } $tags = Item::getFeedTags($item); /// @TODO Combine this with similar below if() block? if (count($tags)) { foreach ($tags as $t) { if (($type != 'html') || ($t[0] != "@")) { XML::addElement($doc, $entry, "category", "", ["scheme" => "X-DFRN:".$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($mention)) ); if (DBM::is_result($r) && ($r[0]["forum"] || $r[0]["prv"])) { XML::addElement( $doc, $entry, "link", "", ["rel" => "mentioned", "ostatus:object-type" => ACTIVITY_OBJ_GROUP, "href" => $mention] ); } else { XML::addElement( $doc, $entry, "link", "", ["rel" => "mentioned", "ostatus:object-type" => ACTIVITY_OBJ_PERSON, "href" => $mention] ); } } self::getAttachment($doc, $entry, $item); return $entry; } /** * @brief encrypts data via AES * * @param string $data The data that is to be encrypted * @param string $key The AES key * * @return string encrypted data */ private static function aesEncrypt($data, $key) { return openssl_encrypt($data, 'aes-128-ecb', $key, OPENSSL_RAW_DATA); } /** * @brief decrypts data via AES * * @param string $encrypted The encrypted data * @param string $key The AES key * * @return string decrypted data */ public static function aesDecrypt($encrypted, $key) { return openssl_decrypt($encrypted, 'aes-128-ecb', $key, OPENSSL_RAW_DATA); } /** * @brief Delivers the atom content to the contacts * * @param array $owner Owner record * @param array $contact Contact record of the receiver * @param string $atom Content that will be transmitted * @param bool $dissolve (to be documented) * * @return int Deliver status. Negative values mean an error. * @todo Add array type-hint for $owner, $contact */ public static function deliver($owner, $contact, $atom, $dissolve = false) { $a = get_app(); // At first try the Diaspora transport layer $ret = self::transmit($owner, $contact, $atom); if ($ret >= 200) { logger('Delivery via Diaspora transport layer was successful with status ' . $ret); return $ret; } $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 = Config::get('system', 'rino_encrypt'); $rino = intval($rino); logger("Local rino version: ". $rino, LOGGER_DEBUG); $ssl_val = intval(Config::get('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); $ret = Network::curl($url); if ($ret['errno'] == CURLE_OPERATION_TIMEDOUT) { Contact::markForArchival($contact); return -2; // timed out } $xml = $ret['body']; $curl_stat = $a->get_curl_code(); if (empty($curl_stat)) { Contact::markForArchival($contact); return -3; // timed out } logger('dfrn_deliver: ' . $xml, LOGGER_DATA); if (empty($xml)) { Contact::markForArchival($contact); return 3; } if (strpos($xml, 'status) != 0) || !strlen($res->challenge) || !strlen($res->dfrn_id)) { Contact::markForArchival($contact); return ($res->status ? $res->status : 3); } $postvars = []; $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 != $orig_id) { logger('dfrn_deliver: wrong dfrn_id.'); // did not decode properly - cannot trust this site Contact::markForArchival($contact); 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('1', '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: $key = openssl_random_pseudo_bytes(16); $data = self::aesEncrypt($postvars['data'], $key); break; default: logger("rino: invalid requested version '$rino_remote_version'"); Contact::markForArchival($contact); return -8; } $postvars['rino'] = $rino_remote_version; $postvars['data'] = bin2hex($data); 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); $xml = Network::post($contact['notify'], $postvars); logger('dfrn_deliver: ' . "RECEIVED: " . $xml, LOGGER_DATA); $curl_stat = $a->get_curl_code(); if (empty($curl_stat) || empty($xml)) { Contact::markForArchival($contact); return -9; // timed out } if (($curl_stat == 503) && stristr($a->get_curl_headers(), 'retry-after')) { Contact::markForArchival($contact); return -10; } if (strpos($xml, 'status)) { Contact::markForArchival($contact); return -11; } // Possibly old servers had returned an empty value when everything was okay if (empty($res->status)) { $res->status = 200; } if (!empty($res->message)) { logger('Delivery returned status '.$res->status.' - '.$res->message, LOGGER_DEBUG); } if (($res->status >= 200) && ($res->status <= 299)) { Contact::unmarkForArchival($contact); } return intval($res->status); } /** * @brief Transmits atom content to the contacts via the Diaspora transport layer * * @param array $owner Owner record * @param array $contact Contact record of the receiver * @param string $atom Content that will be transmitted * * @return int Deliver status. Negative values mean an error. */ public static function transmit($owner, $contact, $atom, $public_batch = false) { $a = get_app(); if (!$public_batch) { if (empty($contact['addr'])) { logger('Empty contact handle for ' . $contact['id'] . ' - ' . $contact['url'] . ' - trying to update it.'); if (Contact::updateFromProbe($contact['id'])) { $new_contact = dba::selectFirst('contact', ['addr'], ['id' => $contact['id']]); $contact['addr'] = $new_contact['addr']; } if (empty($contact['addr'])) { logger('Unable to find contact handle for ' . $contact['id'] . ' - ' . $contact['url']); Contact::markForArchival($contact); return -21; } } $fcontact = Diaspora::personByHandle($contact['addr']); if (empty($fcontact)) { logger('Unable to find contact details for ' . $contact['id'] . ' - ' . $contact['addr']); Contact::markForArchival($contact); return -22; } $pubkey = $fcontact['pubkey']; } else { $pubkey = ''; } $envelope = Diaspora::buildMessage($atom, $owner, $contact, $owner['uprvkey'], $pubkey, $public_batch); // Create the endpoint for public posts. This is some WIP and should later be added to the probing if ($public_batch && empty($contact["batch"])) { $parts = parse_url($contact["notify"]); $path_parts = explode('/', $parts['path']); array_pop($path_parts); $parts['path'] = implode('/', $path_parts); $contact["batch"] = Network::unparseURL($parts); } $dest_url = ($public_batch ? $contact["batch"] : $contact["notify"]); $content_type = ($public_batch ? "application/magic-envelope+xml" : "application/json"); $xml = Network::post($dest_url, $envelope, ["Content-Type: ".$content_type]); $curl_stat = $a->get_curl_code(); if (empty($curl_stat) || empty($xml)) { logger('Empty answer from ' . $contact['id'] . ' - ' . $dest_url); Contact::markForArchival($contact); return -9; // timed out } if (($curl_stat == 503) && (stristr($a->get_curl_headers(), 'retry-after'))) { Contact::markForArchival($contact); return -10; } if (strpos($xml, 'status)) { Contact::markForArchival($contact); return -23; } if (!empty($res->message)) { logger('Transmit to ' . $dest_url . ' returned status '.$res->status.' - '.$res->message, LOGGER_DEBUG); } if (($res->status >= 200) && ($res->status <= 299)) { Contact::unmarkForArchival($contact); } return intval($res->status); } /** * @brief Add new birthday event for this person * * @param array $contact Contact record * @param string $birthday Birthday of the contact * @return void * @todo Add array type-hint for $contact */ private static function birthdayEvent($contact, $birthday) { // Check for duplicates $r = q( "SELECT `id` FROM `event` WHERE `uid` = %d AND `cid` = %d AND `start` = '%s' AND `type` = '%s' LIMIT 1", intval($contact['uid']), intval($contact['id']), dbesc(DateTimeFormat::utc($birthday)), dbesc('birthday') ); if (DBM::is_result($r)) { return; } logger('updating birthday: ' . $birthday . ' for contact ' . $contact['id']); $bdtext = L10n::t('%s\'s birthday', $contact['name']); $bdtext2 = L10n::t('Happy Birthday %s', ' [url=' . $contact['url'] . ']' . $contact['name'] . '[/url]'); $r = q( "INSERT INTO `event` (`uid`,`cid`,`created`,`edited`,`start`,`finish`,`summary`,`desc`,`type`) VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s') ", intval($contact['uid']), intval($contact['id']), dbesc(DateTimeFormat::utcNow()), dbesc(DateTimeFormat::utcNow()), dbesc(DateTimeFormat::utc($birthday)), dbesc(DateTimeFormat::utc($birthday . ' + 1 day ')), dbesc($bdtext), dbesc($bdtext2), dbesc('birthday') ); } /** * @brief Fetch the author data from head or entry items * * @param object $xpath XPath object * @param object $context In which context should the data be searched * @param array $importer Record of the importer user mixed with contact of the content * @param string $element Element name from which the data is fetched * @param bool $onlyfetch Should the data only be fetched or should it update the contact record as well * @param string $xml optional, default empty * * @return array Relevant data of the author * @todo Find good type-hints for all parameter */ private static function fetchauthor($xpath, $context, $importer, $element, $onlyfetch, $xml = "") { $author = []; $author["name"] = $xpath->evaluate($element."/atom:name/text()", $context)->item(0)->nodeValue; $author["link"] = $xpath->evaluate($element."/atom:uri/text()", $context)->item(0)->nodeValue; $contact_old = dba::fetch_first("SELECT `id`, `uid`, `url`, `network`, `avatar-date`, `avatar`, `name-date`, `uri-date`, `addr`, `name`, `nick`, `about`, `location`, `keywords`, `xmpp`, `bdyear`, `bd`, `hidden`, `contact-type` FROM `contact` WHERE `uid` = ? AND `nurl` = ? AND `network` != ?", $importer["importer_uid"], normalise_link($author["link"]), NETWORK_STATUSNET ); if (DBM::is_result($contact_old)) { $author["contact-id"] = $contact_old["id"]; $author["network"] = $contact_old["network"]; } else { if (!$onlyfetch) { logger("Contact ".$author["link"]." wasn't found for user ".$importer["importer_uid"]." XML: ".$xml, LOGGER_DEBUG); } $author["contact-id"] = $importer["id"]; $author["network"] = $importer["network"]; $onlyfetch = true; } // Until now we aren't serving different sizes - but maybe later $avatarlist = []; /// @todo check if "avatar" or "photo" would be the best field in the specification $avatars = $xpath->query($element . "/atom:link[@rel='avatar']", $context); foreach ($avatars as $avatar) { $href = ""; $width = 0; foreach ($avatar->attributes as $attributes) { /// @TODO Rewrite these similar if() to one switch if ($attributes->name == "href") { $href = $attributes->textContent; } if ($attributes->name == "width") { $width = $attributes->textContent; } if ($attributes->name == "updated") { $author["avatar-date"] = $attributes->textContent; } } if (($width > 0) && ($href != "")) { $avatarlist[$width] = $href; } } if (count($avatarlist) > 0) { krsort($avatarlist); $author["avatar"] = current($avatarlist); } if (DBM::is_result($contact_old) && !$onlyfetch) { logger("Check if contact details for contact " . $contact_old["id"] . " (" . $contact_old["nick"] . ") have to be updated.", LOGGER_DEBUG); $poco = ["url" => $contact_old["url"]]; // When was the last change to name or uri? $name_element = $xpath->query($element . "/atom:name", $context)->item(0); foreach ($name_element->attributes as $attributes) { if ($attributes->name == "updated") { $poco["name-date"] = $attributes->textContent; } } $link_element = $xpath->query($element . "/atom:link", $context)->item(0); foreach ($link_element->attributes as $attributes) { if ($attributes->name == "updated") { $poco["uri-date"] = $attributes->textContent; } } // Update contact data $value = $xpath->evaluate($element . "/dfrn:handle/text()", $context)->item(0)->nodeValue; if ($value != "") { $poco["addr"] = $value; } $value = $xpath->evaluate($element . "/poco:displayName/text()", $context)->item(0)->nodeValue; if ($value != "") { $poco["name"] = $value; } $value = $xpath->evaluate($element . "/poco:preferredUsername/text()", $context)->item(0)->nodeValue; if ($value != "") { $poco["nick"] = $value; } $value = $xpath->evaluate($element . "/poco:note/text()", $context)->item(0)->nodeValue; if ($value != "") { $poco["about"] = $value; } $value = $xpath->evaluate($element . "/poco:address/poco:formatted/text()", $context)->item(0)->nodeValue; if ($value != "") { $poco["location"] = $value; } /// @todo Only search for elements with "poco:type" = "xmpp" $value = $xpath->evaluate($element . "/poco:ims/poco:value/text()", $context)->item(0)->nodeValue; if ($value != "") { $poco["xmpp"] = $value; } /// @todo Add support for the following fields that we don't support by now in the contact table: /// - poco:utcOffset /// - poco:urls /// - poco:locality /// - poco:region /// - poco:country // If the "hide" element is present then the profile isn't searchable. $hide = intval($xpath->evaluate($element . "/dfrn:hide/text()", $context)->item(0)->nodeValue == "true"); logger("Hidden status for contact " . $contact_old["url"] . ": " . $hide, LOGGER_DEBUG); // If the contact isn't searchable then set the contact to "hidden". // Problem: This can be manually overridden by the user. if ($hide) { $contact_old["hidden"] = true; } // Save the keywords into the contact table $tags = []; $tagelements = $xpath->evaluate($element . "/poco:tags/text()", $context); foreach ($tagelements as $tag) { $tags[$tag->nodeValue] = $tag->nodeValue; } if (count($tags)) { $poco["keywords"] = implode(", ", $tags); } // "dfrn:birthday" contains the birthday converted to UTC $birthday = $xpath->evaluate($element . "/dfrn:birthday/text()", $context)->item(0)->nodeValue; if (strtotime($birthday) > time()) { $bd_timestamp = strtotime($birthday); $poco["bdyear"] = date("Y", $bd_timestamp); } // "poco:birthday" is the birthday in the format "yyyy-mm-dd" $value = $xpath->evaluate($element . "/poco:birthday/text()", $context)->item(0)->nodeValue; if (!in_array($value, ["", "0000-00-00", "0001-01-01"])) { $bdyear = date("Y"); $value = str_replace("0000", $bdyear, $value); if (strtotime($value) < time()) { $value = str_replace($bdyear, $bdyear + 1, $value); $bdyear = $bdyear + 1; } $poco["bd"] = $value; } $contact = array_merge($contact_old, $poco); if ($contact_old["bdyear"] != $contact["bdyear"]) { self::birthdayEvent($contact, $birthday); } // Get all field names $fields = []; foreach ($contact_old as $field => $data) { $fields[$field] = $data; } unset($fields["id"]); unset($fields["uid"]); unset($fields["url"]); unset($fields["avatar-date"]); unset($fields["avatar"]); unset($fields["name-date"]); unset($fields["uri-date"]); $update = false; // Update check for this field has to be done differently $datefields = ["name-date", "uri-date"]; foreach ($datefields as $field) { if (strtotime($contact[$field]) > strtotime($contact_old[$field])) { logger("Difference for contact " . $contact["id"] . " in field '" . $field . "'. New value: '" . $contact[$field] . "', old value '" . $contact_old[$field] . "'", LOGGER_DEBUG); $update = true; } } foreach ($fields as $field => $data) { if ($contact[$field] != $contact_old[$field]) { logger("Difference for contact " . $contact["id"] . " in field '" . $field . "'. New value: '" . $contact[$field] . "', old value '" . $contact_old[$field] . "'", LOGGER_DEBUG); $update = true; } } if ($update) { logger("Update contact data for contact " . $contact["id"] . " (" . $contact["nick"] . ")", LOGGER_DEBUG); q( "UPDATE `contact` SET `name` = '%s', `nick` = '%s', `about` = '%s', `location` = '%s', `addr` = '%s', `keywords` = '%s', `bdyear` = '%s', `bd` = '%s', `hidden` = %d, `xmpp` = '%s', `name-date` = '%s', `uri-date` = '%s' WHERE `id` = %d AND `network` = '%s'", dbesc($contact["name"]), dbesc($contact["nick"]), dbesc($contact["about"]), dbesc($contact["location"]), dbesc($contact["addr"]), dbesc($contact["keywords"]), dbesc($contact["bdyear"]), dbesc($contact["bd"]), intval($contact["hidden"]), dbesc($contact["xmpp"]), dbesc(DBM::date($contact["name-date"])), dbesc(DBM::date($contact["uri-date"])), intval($contact["id"]), dbesc($contact["network"]) ); } Contact::updateAvatar( $author['avatar'], $importer['importer_uid'], $contact['id'], (strtotime($contact['avatar-date']) > strtotime($contact_old['avatar-date']) || ($author['avatar'] != $contact_old['avatar'])) ); /* * The generation is a sign for the reliability of the provided data. * It is used in the socgraph.php to prevent that old contact data * that was relayed over several servers can overwrite contact * data that we received directly. */ $poco["generation"] = 2; $poco["photo"] = $author["avatar"]; $poco["hide"] = $hide; $poco["contact-type"] = $contact["contact-type"]; $gcid = GContact::update($poco); GContact::link($gcid, $importer["importer_uid"], $contact["id"]); } return $author; } /** * @brief Transforms activity objects into an XML string * * @param object $xpath XPath object * @param object $activity Activity object * @param string $element element name * * @return string XML string * @todo Find good type-hints for all parameter */ private static function transformActivity($xpath, $activity, $element) { if (!is_object($activity)) { return ""; } $obj_doc = new DOMDocument("1.0", "utf-8"); $obj_doc->formatOutput = true; $obj_element = $obj_doc->createElementNS(NAMESPACE_ATOM1, $element); $activity_type = $xpath->query("activity:object-type/text()", $activity)->item(0)->nodeValue; XML::addElement($obj_doc, $obj_element, "type", $activity_type); $id = $xpath->query("atom:id", $activity)->item(0); if (is_object($id)) { $obj_element->appendChild($obj_doc->importNode($id, true)); } $title = $xpath->query("atom:title", $activity)->item(0); if (is_object($title)) { $obj_element->appendChild($obj_doc->importNode($title, true)); } $links = $xpath->query("atom:link", $activity); if (is_object($links)) { foreach ($links as $link) { $obj_element->appendChild($obj_doc->importNode($link, true)); } } $content = $xpath->query("atom:content", $activity)->item(0); if (is_object($content)) { $obj_element->appendChild($obj_doc->importNode($content, true)); } $obj_doc->appendChild($obj_element); $objxml = $obj_doc->saveXML($obj_element); /// @todo This isn't totally clean. We should find a way to transform the namespaces $objxml = str_replace("<".$element.' xmlns="http://www.w3.org/2005/Atom">', "<".$element.">", $objxml); return($objxml); } /** * @brief Processes the mail elements * * @param object $xpath XPath object * @param object $mail mail elements * @param array $importer Record of the importer user mixed with contact of the content * @return void * @todo Find good type-hints for all parameter */ private static function processMail($xpath, $mail, $importer) { logger("Processing mails"); /// @TODO Rewrite this to one statement $msg = []; $msg["uid"] = $importer["importer_uid"]; $msg["from-name"] = $xpath->query("dfrn:sender/dfrn:name/text()", $mail)->item(0)->nodeValue; $msg["from-url"] = $xpath->query("dfrn:sender/dfrn:uri/text()", $mail)->item(0)->nodeValue; $msg["from-photo"] = $xpath->query("dfrn:sender/dfrn:avatar/text()", $mail)->item(0)->nodeValue; $msg["contact-id"] = $importer["id"]; $msg["uri"] = $xpath->query("dfrn:id/text()", $mail)->item(0)->nodeValue; $msg["parent-uri"] = $xpath->query("dfrn:in-reply-to/text()", $mail)->item(0)->nodeValue; $msg["created"] = DateTimeFormat::utc($xpath->query("dfrn:sentdate/text()", $mail)->item(0)->nodeValue); $msg["title"] = $xpath->query("dfrn:subject/text()", $mail)->item(0)->nodeValue; $msg["body"] = $xpath->query("dfrn:content/text()", $mail)->item(0)->nodeValue; $msg["seen"] = 0; $msg["replied"] = 0; dba::insert('mail', $msg); // send notifications. /// @TODO Arange this mess $notif_params = [ "type" => NOTIFY_MAIL, "notify_flags" => $importer["notify-flags"], "language" => $importer["language"], "to_name" => $importer["username"], "to_email" => $importer["email"], "uid" => $importer["importer_uid"], "item" => $msg, "source_name" => $msg["from-name"], "source_link" => $importer["url"], "source_photo" => $importer["thumb"], "verb" => ACTIVITY_POST, "otype" => "mail" ]; notification($notif_params); logger("Mail is processed, notification was sent."); } /** * @brief Processes the suggestion elements * * @param object $xpath XPath object * @param object $suggestion suggestion elements * @param array $importer Record of the importer user mixed with contact of the content * @return boolean * @todo Find good type-hints for all parameter */ private static function processSuggestion($xpath, $suggestion, $importer) { $a = get_app(); logger("Processing suggestions"); /// @TODO Rewrite this to one statement $suggest = []; $suggest["uid"] = $importer["importer_uid"]; $suggest["cid"] = $importer["id"]; $suggest["url"] = $xpath->query("dfrn:url/text()", $suggestion)->item(0)->nodeValue; $suggest["name"] = $xpath->query("dfrn:name/text()", $suggestion)->item(0)->nodeValue; $suggest["photo"] = $xpath->query("dfrn:photo/text()", $suggestion)->item(0)->nodeValue; $suggest["request"] = $xpath->query("dfrn:request/text()", $suggestion)->item(0)->nodeValue; $suggest["body"] = $xpath->query("dfrn:note/text()", $suggestion)->item(0)->nodeValue; // Does our member already have a friend matching this description? $r = q( "SELECT `id` FROM `contact` WHERE `name` = '%s' AND `nurl` = '%s' AND `uid` = %d LIMIT 1", dbesc($suggest["name"]), dbesc(normalise_link($suggest["url"])), intval($suggest["uid"]) ); /* * The valid result means the friend we're about to send a friend * suggestion already has them in their contact, which means no further * action is required. * * @see https://github.com/friendica/friendica/pull/3254#discussion_r107315246 */ if (DBM::is_result($r)) { return false; } // Do we already have an fcontact record for this person? $fid = 0; $r = q( "SELECT `id` FROM `fcontact` WHERE `url` = '%s' AND `name` = '%s' AND `request` = '%s' LIMIT 1", dbesc($suggest["url"]), dbesc($suggest["name"]), dbesc($suggest["request"]) ); if (DBM::is_result($r)) { $fid = $r[0]["id"]; // OK, we do. Do we already have an introduction for this person ? $r = q( "SELECT `id` FROM `intro` WHERE `uid` = %d AND `fid` = %d LIMIT 1", intval($suggest["uid"]), intval($fid) ); /* * The valid result means the friend we're about to send a friend * suggestion already has them in their contact, which means no further * action is required. * * @see https://github.com/friendica/friendica/pull/3254#discussion_r107315246 */ if (DBM::is_result($r)) { return false; } } if (!$fid) { $r = q( "INSERT INTO `fcontact` (`name`,`url`,`photo`,`request`) VALUES ('%s', '%s', '%s', '%s')", dbesc($suggest["name"]), dbesc($suggest["url"]), dbesc($suggest["photo"]), dbesc($suggest["request"]) ); } $r = q( "SELECT `id` FROM `fcontact` WHERE `url` = '%s' AND `name` = '%s' AND `request` = '%s' LIMIT 1", dbesc($suggest["url"]), dbesc($suggest["name"]), dbesc($suggest["request"]) ); /* * If no record in fcontact is found, below INSERT statement will not * link an introduction to it. */ if (!DBM::is_result($r)) { // database record did not get created. Quietly give up. killme(); } $fid = $r[0]["id"]; $hash = random_string(); $r = q( "INSERT INTO `intro` (`uid`, `fid`, `contact-id`, `note`, `hash`, `datetime`, `blocked`) VALUES(%d, %d, %d, '%s', '%s', '%s', %d)", intval($suggest["uid"]), intval($fid), intval($suggest["cid"]), dbesc($suggest["body"]), dbesc($hash), dbesc(DateTimeFormat::utcNow()), intval(0) ); notification( [ "type" => NOTIFY_SUGGEST, "notify_flags" => $importer["notify-flags"], "language" => $importer["language"], "to_name" => $importer["username"], "to_email" => $importer["email"], "uid" => $importer["importer_uid"], "item" => $suggest, "link" => System::baseUrl()."/notifications/intros", "source_name" => $importer["name"], "source_link" => $importer["url"], "source_photo" => $importer["photo"], "verb" => ACTIVITY_REQ_FRIEND, "otype" => "intro"] ); return true; } /** * @brief Processes the relocation elements * * @param object $xpath XPath object * @param object $relocation relocation elements * @param array $importer Record of the importer user mixed with contact of the content * @return boolean * @todo Find good type-hints for all parameter */ private static function processRelocation($xpath, $relocation, $importer) { logger("Processing relocations"); /// @TODO Rewrite this to one statement $relocate = []; $relocate["uid"] = $importer["importer_uid"]; $relocate["cid"] = $importer["id"]; $relocate["url"] = $xpath->query("dfrn:url/text()", $relocation)->item(0)->nodeValue; $relocate["addr"] = $xpath->query("dfrn:addr/text()", $relocation)->item(0)->nodeValue; $relocate["name"] = $xpath->query("dfrn:name/text()", $relocation)->item(0)->nodeValue; $relocate["avatar"] = $xpath->query("dfrn:avatar/text()", $relocation)->item(0)->nodeValue; $relocate["photo"] = $xpath->query("dfrn:photo/text()", $relocation)->item(0)->nodeValue; $relocate["thumb"] = $xpath->query("dfrn:thumb/text()", $relocation)->item(0)->nodeValue; $relocate["micro"] = $xpath->query("dfrn:micro/text()", $relocation)->item(0)->nodeValue; $relocate["request"] = $xpath->query("dfrn:request/text()", $relocation)->item(0)->nodeValue; $relocate["confirm"] = $xpath->query("dfrn:confirm/text()", $relocation)->item(0)->nodeValue; $relocate["notify"] = $xpath->query("dfrn:notify/text()", $relocation)->item(0)->nodeValue; $relocate["poll"] = $xpath->query("dfrn:poll/text()", $relocation)->item(0)->nodeValue; $relocate["sitepubkey"] = $xpath->query("dfrn:sitepubkey/text()", $relocation)->item(0)->nodeValue; if (($relocate["avatar"] == "") && ($relocate["photo"] != "")) { $relocate["avatar"] = $relocate["photo"]; } if ($relocate["addr"] == "") { $relocate["addr"] = preg_replace("=(https?://)(.*)/profile/(.*)=ism", "$3@$2", $relocate["url"]); } // update contact $r = q( "SELECT `photo`, `url` FROM `contact` WHERE `id` = %d AND `uid` = %d;", intval($importer["id"]), intval($importer["importer_uid"]) ); if (!DBM::is_result($r)) { logger("Query failed to execute, no result returned in " . __FUNCTION__); return false; } $old = $r[0]; // Update the gcontact entry $relocate["server_url"] = preg_replace("=(https?://)(.*)/profile/(.*)=ism", "$1$2", $relocate["url"]); $fields = ['name' => $relocate["name"], 'photo' => $relocate["avatar"], 'url' => $relocate["url"], 'nurl' => normalise_link($relocate["url"]), 'addr' => $relocate["addr"], 'connect' => $relocate["addr"], 'notify' => $relocate["notify"], 'server_url' => $relocate["server_url"]]; dba::update('gcontact', $fields, ['nurl' => normalise_link($old["url"])]); // Update the contact table. We try to find every entry. $fields = ['name' => $relocate["name"], 'avatar' => $relocate["avatar"], 'url' => $relocate["url"], 'nurl' => normalise_link($relocate["url"]), 'addr' => $relocate["addr"], 'request' => $relocate["request"], 'confirm' => $relocate["confirm"], 'notify' => $relocate["notify"], 'poll' => $relocate["poll"], 'site-pubkey' => $relocate["sitepubkey"]]; $condition = ["(`id` = ?) OR (`nurl` = ?)", $importer["id"], normalise_link($old["url"])]; dba::update('contact', $fields, $condition); // @TODO No dba:update here? dba::update('contact', $fields, $condition); Contact::updateAvatar($relocate["avatar"], $importer["importer_uid"], $importer["id"], true); logger('Contacts are updated.'); // update items // This is an extreme performance killer Item::update(['owner-link' => $relocate["url"]], ['owner-link' => $old["url"], 'uid' => $importer["importer_uid"]]); Item::update(['author-link' => $relocate["url"]], ['author-link' => $old["url"], 'uid' => $importer["importer_uid"]]); logger('Items are updated.'); /// @TODO /// merge with current record, current contents have priority /// update record, set url-updated /// update profile photos /// schedule a scan? return true; } /** * @brief Updates an item * * @param array $current the current item record * @param array $item the new item record * @param array $importer Record of the importer user mixed with contact of the content * @param int $entrytype Is it a toplevel entry, a comment or a relayed comment? * @return mixed * @todo set proper type-hints (array?) */ private static function updateContent($current, $item, $importer, $entrytype) { $changed = false; if (self::isEditedTimestampNewer($current, $item)) { // do not accept (ignore) an earlier edit than one we currently have. if (DateTimeFormat::utc($item["edited"]) < $current["edited"]) { return false; } $fields = ['title' => defaults($item, 'title', ''), 'body' => defaults($item, 'body', ''), 'tag' => defaults($item, 'tag', ''), 'changed' => DateTimeFormat::utcNow(), 'edited' => DateTimeFormat::utc($item["edited"])]; $condition = ["`uri` = ? AND `uid` IN (0, ?)", $item["uri"], $importer["importer_uid"]]; Item::update($fields, $condition); $changed = true; } return $changed; } /** * @brief Detects the entry type of the item * * @param array $importer Record of the importer user mixed with contact of the content * @param array $item the new item record * * @return int Is it a toplevel entry, a comment or a relayed comment? * @todo set proper type-hints (array?) */ private static function getEntryType($importer, $item) { if ($item["parent-uri"] != $item["uri"]) { $community = false; if ($importer["page-flags"] == PAGE_COMMUNITY || $importer["page-flags"] == PAGE_PRVGROUP) { $sql_extra = ""; $community = true; logger("possible community action"); } else { $sql_extra = " AND `contact`.`self` AND `item`.`wall` "; } // was the top-level post for this action written by somebody on this site? // Specifically, the recipient? $is_a_remote_action = false; $r = q( "SELECT `item`.`parent-uri` FROM `item` WHERE `item`.`uri` = '%s' LIMIT 1", dbesc($item["parent-uri"]) ); if (DBM::is_result($r)) { $r = q( "SELECT `item`.`forum_mode`, `item`.`wall` FROM `item` INNER JOIN `contact` ON `contact`.`id` = `item`.`contact-id` WHERE `item`.`uri` = '%s' AND (`item`.`parent-uri` = '%s' OR `item`.`thr-parent` = '%s') AND `item`.`uid` = %d $sql_extra LIMIT 1", dbesc($r[0]["parent-uri"]), dbesc($r[0]["parent-uri"]), dbesc($r[0]["parent-uri"]), intval($importer["importer_uid"]) ); if (DBM::is_result($r)) { $is_a_remote_action = true; } } /* * Does this have the characteristics of a community or private group action? * If it's an action to a wall post on a community/prvgroup page it's a * valid community action. Also forum_mode makes it valid for sure. * If neither, it's not. */ if ($is_a_remote_action && $community && (!$r[0]["forum_mode"]) && (!$r[0]["wall"])) { $is_a_remote_action = false; logger("not a community action"); } if ($is_a_remote_action) { return DFRN::REPLY_RC; } else { return DFRN::REPLY; } } else { return DFRN::TOP_LEVEL; } } /** * @brief Send a "poke" * * @param array $item the new item record * @param array $importer Record of the importer user mixed with contact of the content * @param int $posted_id The record number of item record that was just posted * @return void * @todo set proper type-hints (array?) */ private static function doPoke($item, $importer, $posted_id) { $verb = urldecode(substr($item["verb"], strpos($item["verb"], "#")+1)); if (!$verb) { return; } $xo = XML::parseString($item["object"], false); if (($xo->type == ACTIVITY_OBJ_PERSON) && ($xo->id)) { // somebody was poked/prodded. Was it me? foreach ($xo->link as $l) { $atts = $l->attributes(); switch ($atts["rel"]) { case "alternate": $Blink = $atts["href"]; break; default: break; } } if ($Blink && link_compare($Blink, System::baseUrl() . "/profile/" . $importer["nickname"])) { $author = dba::selectFirst('contact', ['name', 'thumb', 'url'], ['id' => $item['author-id']]); // send a notification notification( [ "type" => NOTIFY_POKE, "notify_flags" => $importer["notify-flags"], "language" => $importer["language"], "to_name" => $importer["username"], "to_email" => $importer["email"], "uid" => $importer["importer_uid"], "item" => $item, "link" => System::baseUrl()."/display/".urlencode(Item::getGuidById($posted_id)), "source_name" => $author["name"], "source_link" => $author["url"], "source_photo" => $author["thumb"], "verb" => $item["verb"], "otype" => "person", "activity" => $verb, "parent" => $item["parent"]] ); } } } /** * @brief Processes several actions, depending on the verb * * @param int $entrytype Is it a toplevel entry, a comment or a relayed comment? * @param array $importer Record of the importer user mixed with contact of the content * @param array $item the new item record * @param bool $is_like Is the verb a "like"? * * @return bool Should the processing of the entries be continued? * @todo set proper type-hints (array?) */ private static function processVerbs($entrytype, $importer, &$item, &$is_like) { logger("Process verb ".$item["verb"]." and object-type ".$item["object-type"]." for entrytype ".$entrytype, LOGGER_DEBUG); if (($entrytype == DFRN::TOP_LEVEL)) { // The filling of the the "contact" variable is done for legcy reasons // The functions below are partly used by ostatus.php as well - where we have this variable $r = q("SELECT * FROM `contact` WHERE `id` = %d", intval($importer["id"])); $contact = $r[0]; $nickname = $contact["nick"]; // Big question: Do we need these functions? They were part of the "consume_feed" function. // This function once was responsible for DFRN and OStatus. if (activity_match($item["verb"], ACTIVITY_FOLLOW)) { logger("New follower"); Contact::addRelationship($importer, $contact, $item, $nickname); return false; } if (activity_match($item["verb"], ACTIVITY_UNFOLLOW)) { logger("Lost follower"); Contact::removeFollower($importer, $contact, $item); return false; } if (activity_match($item["verb"], ACTIVITY_REQ_FRIEND)) { logger("New friend request"); Contact::addRelationship($importer, $contact, $item, $nickname, true); return false; } if (activity_match($item["verb"], ACTIVITY_UNFRIEND)) { logger("Lost sharer"); Contact::removeSharer($importer, $contact, $item); return false; } } else { if (($item["verb"] == ACTIVITY_LIKE) || ($item["verb"] == ACTIVITY_DISLIKE) || ($item["verb"] == ACTIVITY_ATTEND) || ($item["verb"] == ACTIVITY_ATTENDNO) || ($item["verb"] == ACTIVITY_ATTENDMAYBE) ) { $is_like = true; $item["type"] = "activity"; $item["gravity"] = GRAVITY_LIKE; // only one like or dislike per person // splitted into two queries for performance issues $r = q( "SELECT `id` FROM `item` WHERE `uid` = %d AND `author-id` = %d AND `verb` = '%s' AND `parent-uri` = '%s' AND NOT `deleted` LIMIT 1", intval($item["uid"]), intval($item["author-id"]), dbesc($item["verb"]), dbesc($item["parent-uri"]) ); if (DBM::is_result($r)) { return false; } $r = q( "SELECT `id` FROM `item` WHERE `uid` = %d AND `author-id` = %d AND `verb` = '%s' AND `thr-parent` = '%s' AND NOT `deleted` LIMIT 1", intval($item["uid"]), intval($item["author-id"]), dbesc($item["verb"]), dbesc($item["parent-uri"]) ); if (DBM::is_result($r)) { return false; } } else { $is_like = false; } if (($item["verb"] == ACTIVITY_TAG) && ($item["object-type"] == ACTIVITY_OBJ_TAGTERM)) { $xo = XML::parseString($item["object"], false); $xt = XML::parseString($item["target"], false); if ($xt->type == ACTIVITY_OBJ_NOTE) { $r = q( "SELECT `id`, `tag` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1", dbesc($xt->id), intval($importer["importer_uid"]) ); if (!DBM::is_result($r)) { logger("Query failed to execute, no result returned in " . __FUNCTION__); return false; } // extract tag, if not duplicate, add to parent item if ($xo->content) { if (!stristr($r[0]["tag"], trim($xo->content))) { $tag = $r[0]["tag"] . (strlen($r[0]["tag"]) ? ',' : '') . '#[url=' . $xo->id . ']'. $xo->content . '[/url]'; Item::update(['tag' => $tag], ['id' => $r[0]["id"]]); } } } } } return true; } /** * @brief Processes the link elements * * @param object $links link elements * @param array $item the item record * @return void * @todo set proper type-hints */ private static function parseLinks($links, &$item) { $rel = ""; $href = ""; $type = ""; $length = "0"; $title = ""; foreach ($links as $link) { foreach ($link->attributes as $attributes) { switch ($attributes->name) { case "href" : $href = $attributes->textContent; break; case "rel" : $rel = $attributes->textContent; break; case "type" : $type = $attributes->textContent; break; case "length": $length = $attributes->textContent; break; case "title" : $title = $attributes->textContent; break; } } if (($rel != "") && ($href != "")) { switch ($rel) { case "alternate": $item["plink"] = $href; break; case "enclosure": $enclosure = $href; if (strlen($item["attach"])) { $item["attach"] .= ","; } $item["attach"] .= '[attach]href="' . $href . '" length="' . $length . '" type="' . $type . '" title="' . $title . '"[/attach]'; break; } } } } /** * @brief Processes the entry elements which contain the items and comments * * @param array $header Array of the header elements that always stay the same * @param object $xpath XPath object * @param object $entry entry elements * @param array $importer Record of the importer user mixed with contact of the content * @param object $xml xml * @return void * @todo Add type-hints */ private static function processEntry($header, $xpath, $entry, $importer, $xml) { logger("Processing entries"); $item = $header; $item["protocol"] = PROTOCOL_DFRN; $item["source"] = $xml; // Get the uri $item["uri"] = $xpath->query("atom:id/text()", $entry)->item(0)->nodeValue; $item["edited"] = $xpath->query("atom:updated/text()", $entry)->item(0)->nodeValue; $current = dba::selectFirst('item', ['id', 'uid', 'edited', 'body'], ['uri' => $item["uri"], 'uid' => $importer["importer_uid"]] ); // Is there an existing item? if (DBM::is_result($current) && !self::isEditedTimestampNewer($current, $item)) { logger("Item ".$item["uri"]." (".$item['edited'].") already existed.", LOGGER_DEBUG); return; } // Fetch the owner $owner = self::fetchauthor($xpath, $entry, $importer, "dfrn:owner", true); $item["owner-link"] = $owner["link"]; $item["owner-id"] = Contact::getIdForURL($owner["link"], 0); // fetch the author $author = self::fetchauthor($xpath, $entry, $importer, "atom:author", true); $item["author-link"] = $author["link"]; $item["author-id"] = Contact::getIdForURL($author["link"], 0); $item["title"] = $xpath->query("atom:title/text()", $entry)->item(0)->nodeValue; $item["created"] = $xpath->query("atom:published/text()", $entry)->item(0)->nodeValue; $item["body"] = $xpath->query("dfrn:env/text()", $entry)->item(0)->nodeValue; $item["body"] = str_replace([' ',"\t","\r","\n"], ['','','',''], $item["body"]); // make sure nobody is trying to sneak some html tags by us $item["body"] = notags(base64url_decode($item["body"])); $item["body"] = BBCode::limitBodySize($item["body"]); /// @todo Do we really need this check for HTML elements? (It was copied from the old function) if ((strpos($item['body'], '<') !== false) && (strpos($item['body'], '>') !== false)) { $base_url = get_app()->get_baseurl(); $item['body'] = reltoabs($item['body'], $base_url); $item['body'] = html2bb_video($item['body']); $item['body'] = OEmbed::HTML2BBCode($item['body']); $config = HTMLPurifier_Config::createDefault(); $config->set('Cache.DefinitionImpl', null); // we shouldn't need a whitelist, because the bbcode converter // will strip out any unsupported tags. $purifier = new HTMLPurifier($config); $item['body'] = $purifier->purify($item['body']); $item['body'] = @HTML::toBBCode($item['body']); } /// @todo We should check for a repeated post and if we know the repeated author. // We don't need the content element since "dfrn:env" is always present //$item["body"] = $xpath->query("atom:content/text()", $entry)->item(0)->nodeValue; $item["location"] = $xpath->query("dfrn:location/text()", $entry)->item(0)->nodeValue; $georsspoint = $xpath->query("georss:point", $entry); if ($georsspoint) { $item["coord"] = $georsspoint->item(0)->nodeValue; } $item["private"] = $xpath->query("dfrn:private/text()", $entry)->item(0)->nodeValue; $item["extid"] = $xpath->query("dfrn:extid/text()", $entry)->item(0)->nodeValue; if ($xpath->query("dfrn:bookmark/text()", $entry)->item(0)->nodeValue == "true") { $item["bookmark"] = true; } $notice_info = $xpath->query("statusnet:notice_info", $entry); if ($notice_info && ($notice_info->length > 0)) { foreach ($notice_info->item(0)->attributes as $attributes) { if ($attributes->name == "source") { $item["app"] = strip_tags($attributes->textContent); } } } $item["guid"] = $xpath->query("dfrn:diaspora_guid/text()", $entry)->item(0)->nodeValue; // We store the data from "dfrn:diaspora_signature" in a different table, this is done in "Item::insert" $dsprsig = unxmlify($xpath->query("dfrn:diaspora_signature/text()", $entry)->item(0)->nodeValue); if ($dsprsig != "") { $item["dsprsig"] = $dsprsig; } $item["verb"] = $xpath->query("activity:verb/text()", $entry)->item(0)->nodeValue; if ($xpath->query("activity:object-type/text()", $entry)->item(0)->nodeValue != "") { $item["object-type"] = $xpath->query("activity:object-type/text()", $entry)->item(0)->nodeValue; } $object = $xpath->query("activity:object", $entry)->item(0); $item["object"] = self::transformActivity($xpath, $object, "object"); if (trim($item["object"]) != "") { $r = XML::parseString($item["object"], false); if (isset($r->type)) { $item["object-type"] = $r->type; } } $target = $xpath->query("activity:target", $entry)->item(0); $item["target"] = self::transformActivity($xpath, $target, "target"); $categories = $xpath->query("atom:category", $entry); if ($categories) { foreach ($categories as $category) { $term = ""; $scheme = ""; foreach ($category->attributes as $attributes) { if ($attributes->name == "term") { $term = $attributes->textContent; } if ($attributes->name == "scheme") { $scheme = $attributes->textContent; } } if (($term != "") && ($scheme != "")) { $parts = explode(":", $scheme); if ((count($parts) >= 4) && (array_shift($parts) == "X-DFRN")) { $termhash = array_shift($parts); $termurl = implode(":", $parts); if (strlen($item["tag"])) { $item["tag"] .= ","; } $item["tag"] .= $termhash . "[url=" . $termurl . "]" . $term . "[/url]"; } } } } $enclosure = ""; $links = $xpath->query("atom:link", $entry); if ($links) { self::parseLinks($links, $item); } $item['conversation-uri'] = $xpath->query('ostatus:conversation/text()', $entry)->item(0)->nodeValue; $conv = $xpath->query('ostatus:conversation', $entry); if (is_object($conv->item(0))) { foreach ($conv->item(0)->attributes as $attributes) { if ($attributes->name == "ref") { $item['conversation-uri'] = $attributes->textContent; } if ($attributes->name == "href") { $item['conversation-href'] = $attributes->textContent; } } } // Is it a reply or a top level posting? $item["parent-uri"] = $item["uri"]; $inreplyto = $xpath->query("thr:in-reply-to", $entry); if (is_object($inreplyto->item(0))) { foreach ($inreplyto->item(0)->attributes as $attributes) { if ($attributes->name == "ref") { $item["parent-uri"] = $attributes->textContent; } } } // Get the type of the item (Top level post, reply or remote reply) $entrytype = self::getEntryType($importer, $item); // Now assign the rest of the values that depend on the type of the message if (in_array($entrytype, [DFRN::REPLY, DFRN::REPLY_RC])) { if (!isset($item["object-type"])) { $item["object-type"] = ACTIVITY_OBJ_COMMENT; } if ($item["contact-id"] != $owner["contact-id"]) { $item["contact-id"] = $owner["contact-id"]; } if (($item["network"] != $owner["network"]) && ($owner["network"] != "")) { $item["network"] = $owner["network"]; } if ($item["contact-id"] != $author["contact-id"]) { $item["contact-id"] = $author["contact-id"]; } if (($item["network"] != $author["network"]) && ($author["network"] != "")) { $item["network"] = $author["network"]; } } if ($entrytype == DFRN::REPLY_RC) { $item["type"] = "remote-comment"; $item["wall"] = 1; } elseif ($entrytype == DFRN::TOP_LEVEL) { if (!isset($item["object-type"])) { $item["object-type"] = ACTIVITY_OBJ_NOTE; } // Is it an event? if ($item["object-type"] == ACTIVITY_OBJ_EVENT) { logger("Item ".$item["uri"]." seems to contain an event.", LOGGER_DEBUG); $ev = Event::fromBBCode($item["body"]); if ((x($ev, "desc") || x($ev, "summary")) && x($ev, "start")) { logger("Event in item ".$item["uri"]." was found.", LOGGER_DEBUG); $ev["cid"] = $importer["id"]; $ev["uid"] = $importer["importer_uid"]; $ev["uri"] = $item["uri"]; $ev["edited"] = $item["edited"]; $ev["private"] = $item["private"]; $ev["guid"] = $item["guid"]; $r = q( "SELECT `id` FROM `event` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1", dbesc($item["uri"]), intval($importer["importer_uid"]) ); if (DBM::is_result($r)) { $ev["id"] = $r[0]["id"]; } $event_id = Event::store($ev); logger("Event ".$event_id." was stored", LOGGER_DEBUG); return; } } } if (!self::processVerbs($entrytype, $importer, $item, $is_like)) { logger("Exiting because 'processVerbs' told us so", LOGGER_DEBUG); return; } // Update content if 'updated' changes if (DBM::is_result($current)) { if (self::updateContent($current, $item, $importer, $entrytype)) { logger("Item ".$item["uri"]." was updated.", LOGGER_DEBUG); } else { logger("Item " . $item["uri"] . " already existed.", LOGGER_DEBUG); } return; } if (in_array($entrytype, [DFRN::REPLY, DFRN::REPLY_RC])) { $posted_id = Item::insert($item); $parent = 0; if ($posted_id) { logger("Reply from contact ".$item["contact-id"]." was stored with id ".$posted_id, LOGGER_DEBUG); if ($item['uid'] == 0) { Item::distribute($posted_id); } return true; } } else { // $entrytype == DFRN::TOP_LEVEL if (($importer["uid"] == 0) && ($importer["importer_uid"] != 0)) { logger("Contact ".$importer["id"]." isn't known to user ".$importer["importer_uid"].". The post will be ignored.", LOGGER_DEBUG); return; } if (!link_compare($item["owner-link"], $importer["url"])) { /* * The item owner info is not our contact. It's OK and is to be expected if this is a tgroup delivery, * but otherwise there's a possible data mixup on the sender's system. * the tgroup delivery code called from Item::insert will correct it if it's a forum, * but we're going to unconditionally correct it here so that the post will always be owned by our contact. */ logger('Correcting item owner.', LOGGER_DEBUG); $item["owner-link"] = $importer["url"]; $item["owner-id"] = Contact::getIdForURL($importer["url"], 0); } if (($importer["rel"] == CONTACT_IS_FOLLOWER) && (!self::tgroupCheck($importer["importer_uid"], $item))) { logger("Contact ".$importer["id"]." is only follower and tgroup check was negative.", LOGGER_DEBUG); return; } // This is my contact on another system, but it's really me. // Turn this into a wall post. $notify = Item::isRemoteSelf($importer, $item); $posted_id = Item::insert($item, false, $notify); if ($notify) { $posted_id = $notify; } logger("Item was stored with id ".$posted_id, LOGGER_DEBUG); if ($item['uid'] == 0) { Item::distribute($posted_id); } if (stristr($item["verb"], ACTIVITY_POKE)) { self::doPoke($item, $importer, $posted_id); } } } /** * @brief Deletes items * * @param object $xpath XPath object * @param object $deletion deletion elements * @param array $importer Record of the importer user mixed with contact of the content * @return void * @todo set proper type-hints */ private static function processDeletion($xpath, $deletion, $importer) { logger("Processing deletions"); $uri = null; foreach ($deletion->attributes as $attributes) { if ($attributes->name == "ref") { $uri = $attributes->textContent; } } if (!$uri || !$importer["id"]) { return false; } $condition = ["`uri` = ? AND `uid` = ? AND NOT `file` LIKE '%[%'", $uri, $importer["importer_uid"]]; $item = dba::selectFirst('item', ['id', 'parent', 'contact-id'], $condition); if (!DBM::is_result($item)) { logger("Item with uri " . $uri . " for user " . $importer["importer_uid"] . " wasn't found.", LOGGER_DEBUG); return; } // When it is a starting post it has to belong to the person that wants to delete it if (($item['id'] == $item['parent']) && ($item['contact-id'] != $importer["id"])) { logger("Item with uri " . $uri . " don't belong to contact " . $importer["id"] . " - ignoring deletion.", LOGGER_DEBUG); return; } // Comments can be deleted by the thread owner or comment owner if (($item['id'] != $item['parent']) && ($item['contact-id'] != $importer["id"])) { $condition = ['id' => $item['parent'], 'contact-id' => $importer["id"]]; if (!dba::exists('item', $condition)) { logger("Item with uri " . $uri . " wasn't found or mustn't be deleted by contact " . $importer["id"] . " - ignoring deletion.", LOGGER_DEBUG); return; } } if ($item["deleted"]) { return; } logger('deleting item '.$item['id'].' uri='.$uri, LOGGER_DEBUG); Item::delete(['id' => $item['id']]); } /** * @brief Imports a DFRN message * * @param string $xml The DFRN message * @param array $importer Record of the importer user mixed with contact of the content * @param bool $sort_by_date Is used when feeds are polled * @return integer Import status * @todo set proper type-hints */ public static function import($xml, $importer, $sort_by_date = false) { if ($xml == "") { return 400; } $doc = new DOMDocument(); @$doc->loadXML($xml); $xpath = new DOMXPath($doc); $xpath->registerNamespace("atom", NAMESPACE_ATOM1); $xpath->registerNamespace("thr", NAMESPACE_THREAD); $xpath->registerNamespace("at", NAMESPACE_TOMB); $xpath->registerNamespace("media", NAMESPACE_MEDIA); $xpath->registerNamespace("dfrn", NAMESPACE_DFRN); $xpath->registerNamespace("activity", NAMESPACE_ACTIVITY); $xpath->registerNamespace("georss", NAMESPACE_GEORSS); $xpath->registerNamespace("poco", NAMESPACE_POCO); $xpath->registerNamespace("ostatus", NAMESPACE_OSTATUS); $xpath->registerNamespace("statusnet", NAMESPACE_STATUSNET); $header = []; $header["uid"] = $importer["importer_uid"]; $header["network"] = NETWORK_DFRN; $header["type"] = "remote"; $header["wall"] = 0; $header["origin"] = 0; $header["contact-id"] = $importer["id"]; // Update the contact table if the data has changed // The "atom:author" is only present in feeds if ($xpath->query("/atom:feed/atom:author")->length > 0) { self::fetchauthor($xpath, $doc->firstChild, $importer, "atom:author", false, $xml); } // Only the "dfrn:owner" in the head section contains all data if ($xpath->query("/atom:feed/dfrn:owner")->length > 0) { self::fetchauthor($xpath, $doc->firstChild, $importer, "dfrn:owner", false, $xml); } logger("Import DFRN message for user " . $importer["importer_uid"] . " from contact " . $importer["id"], LOGGER_DEBUG); // is it a public forum? Private forums aren't exposed with this method $forum = intval($xpath->evaluate("/atom:feed/dfrn:community/text()")->item(0)->nodeValue); // The account type is new since 3.5.1 if ($xpath->query("/atom:feed/dfrn:account_type")->length > 0) { $accounttype = intval($xpath->evaluate("/atom:feed/dfrn:account_type/text()")->item(0)->nodeValue); if ($accounttype != $importer["contact-type"]) { dba::update('contact', ['contact-type' => $accounttype], ['id' => $importer["id"]]); } // A forum contact can either have set "forum" or "prv" - but not both if (($accounttype == ACCOUNT_TYPE_COMMUNITY) && (($forum != $importer["forum"]) || ($forum == $importer["prv"]))) { $condition = ['(`forum` != ? OR `prv` != ?) AND `id` = ?', $forum, !$forum, $importer["id"]]; dba::update('contact', ['forum' => $forum, 'prv' => !$forum], $condition); } } elseif ($forum != $importer["forum"]) { // Deprecated since 3.5.1 $condition = ['`forum` != ? AND `id` = ?', $forum, $importer["id"]]; dba::update('contact', ['forum' => $forum], $condition); } // We are processing relocations even if we are ignoring a contact $relocations = $xpath->query("/atom:feed/dfrn:relocate"); foreach ($relocations as $relocation) { self::processRelocation($xpath, $relocation, $importer); } if (($importer["uid"] != 0) && !$importer["readonly"]) { $mails = $xpath->query("/atom:feed/dfrn:mail"); foreach ($mails as $mail) { self::processMail($xpath, $mail, $importer); } $suggestions = $xpath->query("/atom:feed/dfrn:suggest"); foreach ($suggestions as $suggestion) { self::processSuggestion($xpath, $suggestion, $importer); } } $deletions = $xpath->query("/atom:feed/at:deleted-entry"); foreach ($deletions as $deletion) { self::processDeletion($xpath, $deletion, $importer); } if (!$sort_by_date) { $entries = $xpath->query("/atom:feed/atom:entry"); foreach ($entries as $entry) { self::processEntry($header, $xpath, $entry, $importer, $xml); } } else { $newentries = []; $entries = $xpath->query("/atom:feed/atom:entry"); foreach ($entries as $entry) { $created = $xpath->query("atom:published/text()", $entry)->item(0)->nodeValue; $newentries[strtotime($created)] = $entry; } // Now sort after the publishing date ksort($newentries); foreach ($newentries as $entry) { self::processEntry($header, $xpath, $entry, $importer, $xml); } } logger("Import done for user " . $importer["importer_uid"] . " from contact " . $importer["id"], LOGGER_DEBUG); return 200; } /** * @param App $a App * @param string $contact_nick contact nickname */ public static function autoRedir(App $a, $contact_nick) { // prevent looping if (x($_REQUEST, 'redir') && intval($_REQUEST['redir'])) { return; } if ((! $contact_nick) || ($contact_nick === $a->user['nickname'])) { return; } if (local_user()) { // We need to find out if $contact_nick is a user on this hub, and if so, if I // am a contact of that user. However, that user may have other contacts with the // same nickname as me on other hubs or other networks. Exclude these by requiring // that the contact have a local URL. I will be the only person with my nickname at // this URL, so if a result is found, then I am a contact of the $contact_nick user. // // We also have to make sure that I'm a legitimate contact--I'm not blocked or pending. $baseurl = System::baseUrl(); $domain_st = strpos($baseurl, "://"); if ($domain_st === false) { return; } $baseurl = substr($baseurl, $domain_st + 3); $nurl = normalise_link($baseurl); /// @todo Why is there a query for "url" *and* "nurl"? Especially this normalising is strange. $r = q("SELECT `id` FROM `contact` WHERE `uid` = (SELECT `uid` FROM `user` WHERE `nickname` = '%s' LIMIT 1) AND `nick` = '%s' AND NOT `self` AND (`url` LIKE '%%%s%%' OR `nurl` LIKE '%%%s%%') AND NOT `blocked` AND NOT `pending` LIMIT 1", dbesc($contact_nick), dbesc($a->user['nickname']), dbesc($baseurl), dbesc($nurl) ); if ((! DBM::is_result($r)) || $r[0]['id'] == remote_user()) { return; } $r = q("SELECT * FROM contact WHERE nick = '%s' AND network = '%s' AND uid = %d AND url LIKE '%%%s%%' LIMIT 1", dbesc($contact_nick), dbesc(NETWORK_DFRN), intval(local_user()), dbesc($baseurl) ); if (! DBM::is_result($r)) { return; } $cid = $r[0]['id']; $dfrn_id = (($r[0]['issued-id']) ? $r[0]['issued-id'] : $r[0]['dfrn-id']); if ($r[0]['duplex'] && $r[0]['issued-id']) { $orig_id = $r[0]['issued-id']; $dfrn_id = '1:' . $orig_id; } if ($r[0]['duplex'] && $r[0]['dfrn-id']) { $orig_id = $r[0]['dfrn-id']; $dfrn_id = '0:' . $orig_id; } // ensure that we've got a valid ID. There may be some edge cases with forums and non-duplex mode // that may have triggered some of the "went to {profile/intro} and got an RSS feed" issues if (strlen($dfrn_id) < 3) { return; } $sec = random_string(); dba::insert('profile_check', ['uid' => local_user(), 'cid' => $cid, 'dfrn_id' => $dfrn_id, 'sec' => $sec, 'expire' => time() + 45]); $url = curPageURL(); logger('auto_redir: ' . $r[0]['name'] . ' ' . $sec, LOGGER_DEBUG); $dest = (($url) ? '&destination_url=' . $url : ''); goaway($r[0]['poll'] . '?dfrn_id=' . $dfrn_id . '&dfrn_version=' . DFRN_PROTOCOL_VERSION . '&type=profile&sec=' . $sec . $dest); } return; } /** * @brief Returns the activity verb * * @param array $item Item array * * @return string activity verb */ private static function constructVerb(array $item) { if ($item['verb']) { return $item['verb']; } return ACTIVITY_POST; } private static function tgroupCheck($uid, $item) { $mention = false; // check that the message originated elsewhere and is a top-level post if ($item['wall'] || $item['origin'] || ($item['uri'] != $item['parent-uri'])) { return false; } $u = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval($uid) ); if (!DBM::is_result($u)) { return false; } $community_page = ($u[0]['page-flags'] == PAGE_COMMUNITY); $prvgroup = ($u[0]['page-flags'] == PAGE_PRVGROUP); $link = normalise_link(System::baseUrl() . '/profile/' . $u[0]['nickname']); /* * Diaspora uses their own hardwired link URL in @-tags * instead of the one we supply with webfinger */ $dlink = normalise_link(System::baseUrl() . '/u/' . $u[0]['nickname']); $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism', $item['body'], $matches, PREG_SET_ORDER); if ($cnt) { foreach ($matches as $mtch) { if (link_compare($link, $mtch[1]) || link_compare($dlink, $mtch[1])) { $mention = true; logger('mention found: ' . $mtch[2]); } } } if (!$mention) { return false; } return $community_page || $prvgroup; } /** * This function returns true if $update has an edited timestamp newer * than $existing, i.e. $update contains new data which should override * what's already there. If there is no timestamp yet, the update is * assumed to be newer. If the update has no timestamp, the existing * item is assumed to be up-to-date. If the timestamps are equal it * assumes the update has been seen before and should be ignored. * */ private static function isEditedTimestampNewer($existing, $update) { if (!x($existing, 'edited') || !$existing['edited']) { return true; } if (!x($update, 'edited') || !$update['edited']) { return false; } $existing_edited = DateTimeFormat::utc($existing['edited']); $update_edited = DateTimeFormat::utc($update['edited']); return (strcmp($existing_edited, $update_edited) < 0); } }