Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
/**
* @file include/dfrn.php
* @brief The implementation of the dfrn protocol
*
* @see https://github.com/friendica/friendica/wiki/Protocol and
* https://github.com/friendica/friendica/blob/master/spec/dfrn2.pdf
*/
use Friendica\App;
require_once("include/Contact.php");
require_once("include/ostatus.php");
require_once("include/enotify.php");
require_once("include/threads.php");
require_once("include/socgraph.php");
require_once("include/items.php");
require_once("include/tags.php");
require_once("include/files.php");
require_once("include/event.php");
require_once("include/text.php");
require_once("include/oembed.php");
require_once("include/html2bbcode.php");
require_once("include/bbcode.php");
require_once("include/xml.php");
/**
* @brief This class contain functions to create and send DFRN XML files
*
*/
class dfrn {
const DFRN_TOP_LEVEL = 0; // Top level posting
const DFRN_REPLY = 1; // Regular reply that is stored locally
const DFRN_REPLY_RC = 2; // Reply that will be relayed
/**
* @brief Generates the atom entries for delivery.php
*
* This function is used whenever content is transmitted via DFRN.
*
* @param array $items Item elements
* @param array $owner Owner record
*
* @return string DFRN entries
* @todo Add type-hints
*/
public static function entries($items,$owner) {
$doc = new DOMDocument('1.0', 'utf-8');
$doc->formatOutput = true;
$root = self::add_header($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)) {
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)) {
killme();
}
$contact = $r[0];
require_once('include/security.php');
$groups = init_groups_visitor($contact['id']);
if (count($groups)) {
for ($x = 0; $x < count($groups); $x ++)
$groups[$x] = '<' . intval($groups[$x]) . '>' ;
$gs = implode('|', $groups);
} else {
$gs = '<<>>' ; // Impossible to match
}
$sql_extra = sprintf("
AND ( `allow_cid` = '' OR `allow_cid` REGEXP '<%d>' )
AND ( `deny_cid` = '' OR NOT `deny_cid` REGEXP '<%d>' )
AND ( `allow_gid` = '' OR `allow_gid` REGEXP '%s' )
AND ( `deny_gid` = '' OR NOT `deny_gid` REGEXP '%s')
",
intval($contact['id']),
intval($contact['id']),
dbesc($gs),
dbesc($gs)
);
}
if ($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) {
if (! $converse) {
$sql_extra .= " AND `contact`.`self` = 1 ";
}
}
$check_date = datetime_convert('UTC','UTC',$last_update,'Y-m-d H:i:s');
$r = q("SELECT `item`.*, `item`.`id` AS `item_id`,
`contact`.`name`, `contact`.`network`, `contact`.`photo`, `contact`.`url`,
`contact`.`name-date`, `contact`.`uri-date`, `contact`.`avatar-date`,
`contact`.`thumb`, `contact`.`dfrn-id`, `contact`.`self`,
`sign`.`signed_text`, `sign`.`signature`, `sign`.`signer`
FROM `item` USE INDEX (`uid_wall_changed`) $sql_post_table
STRAIGHT_JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
AND (NOT `contact`.`blocked` OR `contact`.`pending`)
LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id`
WHERE `item`.`uid` = %d AND `item`.`visible` AND NOT `item`.`moderated` AND `item`.`parent` != 0
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)
);
/*
* Will check further below if this actually returned results.
* We will provide an empty feed if that is the case.
*/
$items = $r;
$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";
}
$root = self::add_header($doc, $owner, $author, $alternatelink, true);
/// @TODO This hook can't work anymore
// call_hooks('atom_feed', $atom);
if (!dbm::is_result($items) OR $onlyheader) {
$atom = trim($doc->saveXML());
call_hooks('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());
call_hooks('atom_feed_end', $atom);
return $atom;
}
/**
* @brief Create XML text for DFRN mails
*
* @param array $item message elements
* @param array $owner Owner record
*
* @return string DFRN mail
* @todo Add type-hints
*/
public static function mail($item, $owner) {
$doc = new DOMDocument('1.0', 'utf-8');
$doc->formatOutput = true;
$root = self::add_header($doc, $owner, "dfrn:owner", "", false);
$mail = $doc->createElement("dfrn:mail");
$sender = $doc->createElement("dfrn:sender");
xml::add_element($doc, $sender, "dfrn:name", $owner['name']);
xml::add_element($doc, $sender, "dfrn:uri", $owner['url']);
xml::add_element($doc, $sender, "dfrn:avatar", $owner['thumb']);
$mail->appendChild($sender);
xml::add_element($doc, $mail, "dfrn:id", $item['uri']);
xml::add_element($doc, $mail, "dfrn:in-reply-to", $item['parent-uri']);
xml::add_element($doc, $mail, "dfrn:sentdate", datetime_convert('UTC', 'UTC', $item['created'] . '+00:00' , ATOM_TIME));
xml::add_element($doc, $mail, "dfrn:subject", $item['title']);
xml::add_element($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 $owner Owner record
*
* @return string DFRN suggestions
* @todo Add type-hints
*/
public static function fsuggest($item, $owner) {
$doc = new DOMDocument('1.0', 'utf-8');
$doc->formatOutput = true;
$root = self::add_header($doc, $owner, "dfrn:owner", "", false);
$suggest = $doc->createElement("dfrn:suggest");
xml::add_element($doc, $suggest, "dfrn:url", $item['url']);
xml::add_element($doc, $suggest, "dfrn:name", $item['name']);
xml::add_element($doc, $suggest, "dfrn:photo", $item['photo']);
xml::add_element($doc, $suggest, "dfrn:request", $item['request']);
xml::add_element($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 $uid User ID
*
* @return string DFRN relocations
* @todo Add type-hints
*/
public static function relocate($owner, $uid) {
/* get site pubkey. this could be a new installation with no site keys*/
$pubkey = get_config('system','site_pubkey');
if (! $pubkey) {
$res = new_keypair(1024);
set_config('system','site_prvkey', $res['prvkey']);
set_config('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 = array();
$ext = Photo::supportedTypes();
foreach ($rp as $p) {
$photos[$p['scale']] = App::get_baseurl().'/photo/'.$p['resource-id'].'-'.$p['scale'].'.'.$ext[$p['type']];
}
unset($rp, $ext);
$doc = new DOMDocument('1.0', 'utf-8');
$doc->formatOutput = true;
$root = self::add_header($doc, $owner, "dfrn:owner", "", false);
$relocate = $doc->createElement("dfrn:relocate");
xml::add_element($doc, $relocate, "dfrn:url", $owner['url']);
xml::add_element($doc, $relocate, "dfrn:name", $owner['name']);
xml::add_element($doc, $relocate, "dfrn:addr", $owner['addr']);
xml::add_element($doc, $relocate, "dfrn:avatar", $owner['avatar']);
xml::add_element($doc, $relocate, "dfrn:photo", $photos[4]);
xml::add_element($doc, $relocate, "dfrn:thumb", $photos[5]);
xml::add_element($doc, $relocate, "dfrn:micro", $photos[6]);
xml::add_element($doc, $relocate, "dfrn:request", $owner['request']);
xml::add_element($doc, $relocate, "dfrn:confirm", $owner['confirm']);
xml::add_element($doc, $relocate, "dfrn:notify", $owner['notify']);
xml::add_element($doc, $relocate, "dfrn:poll", $owner['poll']);
xml::add_element($doc, $relocate, "dfrn:sitepubkey", get_config('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 $public Is it a header for public posts?
*
* @return object XML root object
* @todo Add type-hints
*/
private static function add_header($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);
$root->setAttribute("xmlns:statusnet", NAMESPACE_STATUSNET);
xml::add_element($doc, $root, "id", App::get_baseurl()."/profile/".$owner["nick"]);
xml::add_element($doc, $root, "title", $owner["name"]);
$attributes = array("uri" => "https://friendi.ca", "version" => FRIENDICA_VERSION."-".DB_UPDATE_VERSION);
xml::add_element($doc, $root, "generator", FRIENDICA_PLATFORM, $attributes);
$attributes = array("rel" => "license", "href" => "http://creativecommons.org/licenses/by/3.0/");
xml::add_element($doc, $root, "link", "", $attributes);
$attributes = array("rel" => "alternate", "type" => "text/html", "href" => $alternatelink);
xml::add_element($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);
$attributes = array("rel" => "salmon", "href" => App::get_baseurl()."/salmon/".$owner["nick"]);
xml::add_element($doc, $root, "link", "", $attributes);
$attributes = array("rel" => "http://salmon-protocol.org/ns/salmon-replies", "href" => App::get_baseurl()."/salmon/".$owner["nick"]);
xml::add_element($doc, $root, "link", "", $attributes);
$attributes = array("rel" => "http://salmon-protocol.org/ns/salmon-mention", "href" => App::get_baseurl()."/salmon/".$owner["nick"]);
xml::add_element($doc, $root, "link", "", $attributes);
}
// For backward compatibility we keep this element
if ($owner['page-flags'] == PAGE_COMMUNITY) {
xml::add_element($doc, $root, "dfrn:community", 1);
}
// The former element is replaced by this one
xml::add_element($doc, $root, "dfrn:account_type", $owner["account-type"]);
/// @todo We need a way to transmit the different page flags like "PAGE_PRVGROUP"
xml::add_element($doc, $root, "updated", datetime_convert("UTC", "UTC", "now", ATOM_TIME));
$author = self::add_author($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 $authorelement Element name for the author
*
* @return object XML author object
* @todo Add type-hints
*/
private static function add_author($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 = datetime_convert('UTC', 'UTC', $owner['name-date'].'+00:00', ATOM_TIME);
$uridate = datetime_convert('UTC', 'UTC', $owner['uri-date'].'+00:00', ATOM_TIME);
$picdate = datetime_convert('UTC', 'UTC', $owner['avatar-date'].'+00:00', ATOM_TIME);
$attributes = array();
if (!$public OR !$hidewall) {
$attributes = array("dfrn:updated" => $namdate);
}
xml::add_element($doc, $author, "name", $owner["name"], $attributes);
xml::add_element($doc, $author, "uri", App::get_baseurl().'/profile/'.$owner["nickname"], $attributes);
xml::add_element($doc, $author, "dfrn:handle", $owner["addr"], $attributes);
$attributes = array("rel" => "photo", "type" => "image/jpeg",
"media:width" => 175, "media:height" => 175, "href" => $owner['photo']);
if (!$public OR !$hidewall) {
$attributes["dfrn:updated"] = $picdate;
}
xml::add_element($doc, $author, "link", "", $attributes);
$attributes["rel"] = "avatar";
xml::add_element($doc, $author, "link", "", $attributes);
if ($hidewall) {
xml::add_element($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::add_element($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 = $r[0];
xml::add_element($doc, $author, "poco:displayName", $profile["name"]);
xml::add_element($doc, $author, "poco:updated", $namdate);
if (trim($profile["dob"]) > '0001-01-01') {
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));
}
}
if (trim($profile["xmpp"]) != "") {
$ims = $doc->createElement("poco:ims");
xml::add_element($doc, $ims, "poco:type", "xmpp");
xml::add_element($doc, $ims, "poco:value", $profile["xmpp"]);
xml::add_element($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 $items Item elements
*
* @return object XML author object
* @todo Add type-hints
*/
private static function add_entry_author($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 $activity activity value
*
* @return object XML activity object
* @todo Add type-hints
*/
private static function create_activity($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, '&amp;'))) {
$r->link = str_replace('&', '&amp;', $r->link);
}
$r->link = preg_replace('/\<link(.*?)\"\>/', '<link$1"/>', $r->link);
// XML does need a single element as root element so we add a dummy element here
$data = parse_xml_string("<dummy>" . $r->link . "</dummy>", false);
if (is_object($data)) {
foreach ($data->link AS $link) {
$attributes = array();
foreach ($link->attributes() AS $parameter => $value) {
$attributes[$parameter] = $value;
}
xml::add_element($doc, $entry, "link", "", $attributes);
}
}
} 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 $item Item element
*
* @return object XML attachment object
* @todo Add type-hints
*/
private static function get_attachment($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 $cid Contact ID of the recipient
*
* @return object XML entry object
* @todo Add type-hints
*/
private static function entry($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'];
}
// Remove the abstract element. It is only locally important.
$body = remove_abstract($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);
}
// Add conversation data. This is used for OStatus
$conversation_href = App::get_baseurl()."/display/".$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 = array(
"href" => $conversation_href,
"ref" => $conversation_uri);
xml::add_element($doc, $entry, "ostatus:conversation", $conversation_uri, $attributes);
xml::add_element($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($mention)));
if (dbm::is_result($r) AND ($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 encrypts data via AES
*
* @param string $data The data that is to be encrypted
* @param string $key The AES key
*
* @return string encrypted data
*/
private static function aes_encrypt($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 $key The AES key
*
* @return string decrypted data
*/
public static function aes_decrypt($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 $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.
* @todo Add array type-hint for $owner, $contact
*/
public static function deliver($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);
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);
$ret = z_fetch_url($url);
if ($ret['errno'] == CURLE_OPERATION_TIMEDOUT) {
return -2; // timed out
}
$xml = $ret['body'];
$curl_stat = $a->get_curl_code();
if (!$curl_stat) {
return -3; // 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 = openssl_random_pseudo_bytes(16);
$data = self::aes_encrypt($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 -4;
} catch (CannotPerformOperation $ex) {
logger('Cannot safely create a key');
return -5;
}
try {
$data = Crypto::encrypt($postvars['data'], $key);
} catch (CryptoTestFailed $ex) {
logger('Cannot safely perform encryption');
return -6;
} catch (CannotPerformOperation $ex) {
logger('Cannot safely perform encryption');
return -7;
}
break;
default:
logger("rino: invalid requested verision '$rino_remote_version'");
return -8;
}
$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($xml))) {
return -9; // timed out
}
if (($curl_stat == 503) && (stristr($a->get_curl_headers(),'retry-after'))) {
return -10;
}
if (strpos($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'] > NULL_DATE) {
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;
}
/**
* @brief Add new birthday event for this person
*
* @param array $contact Contact record
* @param string $birthday Birthday of the contact
* @todo Add array type-hint for $contact
*/
private static function birthday_event($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(datetime_convert("UTC","UTC", $birthday)),
dbesc("birthday"));
if (dbm::is_result($r)) {
return;
}
logger("updating birthday: ".$birthday." for contact ".$contact["id"]);
$bdtext = sprintf(t("%s\'s birthday"), $contact["name"]);
$bdtext2 = sprintf(t("Happy Birthday %s"), " [url=".$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(datetime_convert()),
dbesc(datetime_convert()),
dbesc(datetime_convert("UTC","UTC", $birthday)),
dbesc(datetime_convert("UTC","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 $onlyfetch Should the data only be fetched or should it update the contact record as well
*
* @return Returns an array with relevant data of the author
* @todo Find good type-hints for all parameter
*/
private static function fetchauthor($xpath, $context, $importer, $element, $onlyfetch, $xml = "") {
$author = array();
$author["name"] = $xpath->evaluate($element."/atom:name/text()", $context)->item(0)->nodeValue;
$author["link"] = $xpath->evaluate($element."/atom:uri/text()", $context)->item(0)->nodeValue;
$r = q("SELECT `id`, `uid`, `url`, `network`, `avatar-date`, `name-date`, `uri-date`, `addr`,
`name`, `nick`, `about`, `location`, `keywords`, `xmpp`, `bdyear`, `bd`, `hidden`, `contact-type`
FROM `contact` WHERE `uid` = %d AND `nurl` = '%s' AND `network` != '%s'",
intval($importer["uid"]), dbesc(normalise_link($author["link"])), dbesc(NETWORK_STATUSNET));
if (dbm::is_result($r)) {
$contact = $r[0];
$author["contact-id"] = $r[0]["id"];
$author["network"] = $r[0]["network"];
} else {
if (!$onlyfetch) {
logger("Contact ".$author["link"]." wasn't found for user ".$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 = array();
/// @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") {
$contact["avatar-date"] = $attributes->textContent;
}
}
if (($width > 0) AND ($href != "")) {
$avatarlist[$width] = $href;
}
}
if (count($avatarlist) > 0) {
krsort($avatarlist);
$author["avatar"] = current($avatarlist);
}
if (dbm::is_result($r) AND !$onlyfetch) {
logger("Check if contact details for contact " . $r[0]["id"] . " (" . $r[0]["nick"] . ") have to be updated.", LOGGER_DEBUG);
$poco = array("url" => $contact["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["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["hidden"] = true;
}
// Save the keywords into the contact table
$tags = array();
$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
$old_bdyear = $contact["bdyear"];
$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, array("", "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, $poco);
if ($old_bdyear != $contact["bdyear"]) {
self::birthday_event($contact, $birthday);
}
// Get all field names
$fields = array();
foreach ($r[0] AS $field => $data) {
$fields[$field] = $data;
}
unset($fields["id"]);
unset($fields["uid"]);
unset($fields["url"]);
unset($fields["avatar-date"]);
unset($fields["name-date"]);
unset($fields["uri-date"]);
// Update check for this field has to be done differently
$datefields = array("name-date", "uri-date");
foreach ($datefields AS $field) {
if (strtotime($contact[$field]) > strtotime($r[0][$field])) {
logger("Difference for contact " . $contact["id"] . " in field '" . $field . "'. New value: '" . $contact[$field] . "', old value '" . $r[0][$field] . "'", LOGGER_DEBUG);
$update = true;
}
}
foreach ($fields AS $field => $data) {
if ($contact[$field] != $r[0][$field]) {
logger("Difference for contact " . $contact["id"] . " in field '" . $field . "'. New value: '" . $contact[$field] . "', old value '" . $r[0][$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($contact["network"]));
}
update_contact_avatar($author["avatar"], $importer["uid"], $contact["id"],
(strtotime($contact["avatar-date"]) > strtotime($r[0]["avatar-date"])));
/*
* 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"];
$gcid = update_gcontact($poco);
link_gcontact($gcid, $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 text $element element name
*
* @return string XML string
* @todo Find good type-hints for all parameter
*/
private static function transform_activity($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()", $activity)->item(0)->nodeValue;
xml::add_element($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 $importer Record of the importer user mixed with contact of the content
* @todo Find good type-hints for all parameter
*/
private static function process_mail($xpath, $mail, $importer) {
logger("Processing mails");
/// @TODO Rewrite this to one statement
$msg = array();
$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"] = $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;
$msg["replied"] = 0;
dbm::esc_array($msg, true);
$r = dbq("INSERT INTO `mail` (`".implode("`, `", array_keys($msg))."`) VALUES (".implode(", ", array_values($msg)).")");
// send notifications.
/// @TODO Arange this mess
$notif_params = array(
"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 $importer Record of the importer user mixed with contact of the content
* @todo Find good type-hints for all parameter
*/
private static function process_suggestion($xpath, $suggestion, $importer) {
$a = get_app();
logger("Processing suggestions");
/// @TODO Rewrite this to one statement
$suggest = array();
$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(datetime_convert()),
intval(0)
);
notification(array(
"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" => App::get_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 $importer Record of the importer user mixed with contact of the content
* @todo Find good type-hints for all parameter
*/
private static function process_relocation($xpath, $relocation, $importer) {
logger("Processing relocations");
/// @TODO Rewrite this to one statement
$relocate = array();
$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"] == "") AND ($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"]);
$x = q("UPDATE `gcontact` SET
`name` = '%s',
`photo` = '%s',
`url` = '%s',
`nurl` = '%s',
`addr` = '%s',
`connect` = '%s',
`notify` = '%s',
`server_url` = '%s'
WHERE `nurl` = '%s';",
dbesc($relocate["name"]),
dbesc($relocate["avatar"]),
dbesc($relocate["url"]),
dbesc(normalise_link($relocate["url"])),
dbesc($relocate["addr"]),
dbesc($relocate["addr"]),
dbesc($relocate["notify"]),
dbesc($relocate["server_url"]),
dbesc(normalise_link($old["url"])));
// Update the contact table. We try to find every entry.
$x = q("UPDATE `contact` SET
`name` = '%s',
`avatar` = '%s',
`url` = '%s',
`nurl` = '%s',
`addr` = '%s',
`request` = '%s',
`confirm` = '%s',
`notify` = '%s',
`poll` = '%s',
`site-pubkey` = '%s'
WHERE (`id` = %d AND `uid` = %d) OR (`nurl` = '%s');",
dbesc($relocate["name"]),
dbesc($relocate["avatar"]),
dbesc($relocate["url"]),
dbesc(normalise_link($relocate["url"])),
dbesc($relocate["addr"]),
dbesc($relocate["request"]),
dbesc($relocate["confirm"]),
dbesc($relocate["notify"]),
dbesc($relocate["poll"]),
dbesc($relocate["sitepubkey"]),
intval($importer["id"]),
intval($importer["importer_uid"]),
dbesc(normalise_link($old["url"])));
update_contact_avatar($relocate["avatar"], $importer["importer_uid"], $importer["id"], true);
if ($x === false) {
return false;
}
// update items
/// @todo This is an extreme performance killer
$fields = array(
'owner-link' => array($old["url"], $relocate["url"]),
'author-link' => array($old["url"], $relocate["url"]),
//'owner-avatar' => array($old["photo"], $relocate["photo"]),
//'author-avatar' => array($old["photo"], $relocate["photo"]),
);
foreach ($fields as $n=>$f) {
$r = q("SELECT `id` FROM `item` WHERE `%s` = '%s' AND `uid` = %d LIMIT 1",
$n, dbesc($f[0]),
intval($importer["importer_uid"]));
if (dbm::is_result($r)) {
$x = q("UPDATE `item` SET `%s` = '%s' WHERE `%s` = '%s' AND `uid` = %d",
$n, dbesc($f[1]),
$n, dbesc($f[0]),
intval($importer["importer_uid"]));
if ($x === false) {
return false;
}
}
}
/// @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 $entrytype Is it a toplevel entry, a comment or a relayed comment?
* @todo set proper type-hints (array?)
*/
private static function update_content($current, $item, $importer, $entrytype) {
$changed = false;
if (edited_timestamp_is_newer($current, $item)) {
// do not accept (ignore) an earlier edit than one we currently have.
if (datetime_convert("UTC","UTC",$item["edited"]) < $current["edited"]) {
return false;
}
$r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s', `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d",
dbesc($item["title"]),
dbesc($item["body"]),
dbesc($item["tag"]),
dbesc(datetime_convert("UTC","UTC",$item["edited"])),
dbesc(datetime_convert()),
dbesc($item["uri"]),
intval($importer["importer_uid"])
);
create_tags_from_itemuri($item["uri"], $importer["importer_uid"]);
update_thread_uri($item["uri"], $importer["importer_uid"]);
$changed = true;
if ($entrytype == DFRN_REPLY_RC) {
proc_run(PRIORITY_HIGH, "include/notifier.php","comment-import", $current["id"]);
}
}
// update last-child if it changes
if ($item["last-child"] AND ($item["last-child"] != $current["last-child"])) {
$r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
dbesc(datetime_convert()),
dbesc($item["parent-uri"]),
intval($importer["importer_uid"])
);
$r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d",
intval($item["last-child"]),
dbesc(datetime_convert()),
dbesc($item["uri"]),
intval($importer["importer_uid"])
);
}
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 $item the new item record
*
* @return int Is it a toplevel entry, a comment or a relayed comment?
* @todo set proper type-hints (array?)
*/
private static function get_entry_type($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)) {
$is_a_remote_action = true;
}
}
/*
* Does this have the characteristics of a community or private group action?
* If it's an action to a wall post on a community/prvgroup page it's a
* valid community action. Also forum_mode makes it valid for sure.
* If neither, it's not.
*/
/// @TODO Maybe merge these if() blocks into one?
if ($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 $posted_id The record number of item record that was just posted
* @todo set proper type-hints (array?)
*/
private static function do_poke($item, $importer, $posted_id) {
$verb = urldecode(substr($item["verb"],strpos($item["verb"], "#")+1));
if (!$verb) {
return;
}
$xo = parse_xml_string($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, App::get_baseurl() . "/profile/" . $importer["nickname"])) {
// send a notification
notification(array(
"type" => NOTIFY_POKE,
"notify_flags" => $importer["notify-flags"],
"language" => $importer["language"],
"to_name" => $importer["username"],
"to_email" => $importer["email"],
"uid" => $importer["importer_uid"],
"item" => $item,
"link" => App::get_baseurl()."/display/".urlencode(get_item_guid($posted_id)),
"source_name" => stripslashes($item["author-name"]),
"source_link" => $item["author-link"],
"source_photo" => ((link_compare($item["author-link"],$importer["url"]))
? $importer["thumb"] : $item["author-avatar"]),
"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 $is_like Is the verb a "like"?
*
* @return bool Should the processing of the entries be continued?
* @todo set proper type-hints (array?)
*/
private static function process_verbs($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");
new_follower($importer, $contact, $item, $nickname);
return false;
}
if (activity_match($item["verb"], ACTIVITY_UNFOLLOW)) {
logger("Lost follower");
lose_follower($importer, $contact, $item);
return false;
}
if (activity_match($item["verb"], ACTIVITY_REQ_FRIEND)) {
logger("New friend request");
new_follower($importer, $contact, $item, $nickname, true);
return false;
}
if (activity_match($item["verb"], ACTIVITY_UNFRIEND)) {
logger("Lost sharer");
lose_sharer($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
$r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `author-link` = '%s' AND `verb` = '%s' AND `parent-uri` = '%s' AND NOT `deleted` LIMIT 1",
intval($item["uid"]),
dbesc($item["author-link"]),
dbesc($item["verb"]),
dbesc($item["parent-uri"])
);
if (dbm::is_result($r)) {
return false;
}
$r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `author-link` = '%s' AND `verb` = '%s' AND `thr-parent` = '%s' AND NOT `deleted` LIMIT 1",
intval($item["uid"]),
dbesc($item["author-link"]),
dbesc($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)) {
$xo = parse_xml_string($item["object"],false);
$xt = parse_xml_string($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($xo->content)))) {
q("UPDATE `item` SET `tag` = '%s' WHERE `id` = %d",
dbesc($r[0]["tag"] . (strlen($r[0]["tag"]) ? ',' : '') . '#[url=' . $xo->id . ']'. $xo->content . '[/url]'),
intval($r[0]["id"])
);
create_tags_from_item($r[0]["id"]);
}
}
}
}
}
return true;
}
/**
* @brief Processes the link elements
*
* @param object $links link elements
* @param array $item the item record
* @todo set proper type-hints
*/
private static function parse_links($links, &$item) {
$rel = "";
$href = "";
$type = "";
$length = "0";
$title = "";
foreach ($links AS $link) {
foreach ($link->attributes AS $attributes) {
/// @TODO Rewrite these repeated (same) if () statements to a switch()
if ($attributes->name == "href") {
$href = $attributes->textContent;
}
if ($attributes->name == "rel") {
$rel = $attributes->textContent;
}
if ($attributes->name == "type") {
$type = $attributes->textContent;
}
if ($attributes->name == "length") {
$length = $attributes->textContent;
}
if ($attributes->name == "title") {
$title = $attributes->textContent;
}
}
if (($rel != "") AND ($href != "")) {
switch ($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 $importer Record of the importer user mixed with contact of the content
* @todo Add type-hints
*/
private static function process_entry($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;
$current = q("SELECT `id`, `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
dbesc($item["uri"]),
intval($importer["importer_uid"])
);
// Is there an existing item?
if (dbm::is_result($current) AND edited_timestamp_is_newer($current[0], $item) AND
(datetime_convert("UTC","UTC",$item["edited"]) < $current[0]["edited"])) {
logger("Item ".$item["uri"]." already existed.", LOGGER_DEBUG);
return;
}
// Fetch the owner
$owner = self::fetchauthor($xpath, $entry, $importer, "dfrn:owner", true);
$item["owner-name"] = $owner["name"];
$item["owner-link"] = $owner["link"];
$item["owner-avatar"] = $owner["avatar"];
// fetch the author
$author = self::fetchauthor($xpath, $entry, $importer, "atom:author", true);
$item["author-name"] = $author["name"];
$item["author-link"] = $author["link"];
$item["author-avatar"] = $author["avatar"];
$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;
$item["body"] = str_replace(array(' ',"\t","\r","\n"), array('','','',''),$item["body"]);
// make sure nobody is trying to sneak some html tags by us
$item["body"] = notags(base64url_decode($item["body"]));
$item["body"] = limit_body_size($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)) {
$item['body'] = reltoabs($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']);
$item['body'] = @html2bbcode($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["last-child"] = $xpath->query("dfrn:comment-allow/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 AND ($notice_info->length > 0)) {
foreach ($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_store"
$dsprsig = unxmlify($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);
$item["object"] = self::transform_activity($xpath, $object, "object");
if (trim($item["object"]) != "") {
$r = parse_xml_string($item["object"], false);
if (isset($r->type)) {
$item["object-type"] = $r->type;
}
}
$target = $xpath->query("activity:target", $entry)->item(0);
$item["target"] = self::transform_activity($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 != "") AND ($scheme != "")) {
$parts = explode(":", $scheme);
if ((count($parts) >= 4) AND (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::parse_links($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[