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
*/
namespace Friendica\Protocol;
use Friendica\App;
use Friendica\Content\OEmbed;
use Friendica\Content\Text\BBCode;
use Friendica\Content\Text\HTML;
use Friendica\Core\Addon;
use Friendica\Core\Config;
use Friendica\Core\L10n;
use Friendica\Core\System;
use Friendica\Core\Worker;
use Friendica\Database\DBM;
use Friendica\Model\Contact;
use Friendica\Model\Event;
use Friendica\Model\GContact;
use Friendica\Model\Group;
use Friendica\Model\Item;
use Friendica\Model\Profile;
use Friendica\Model\User;
use Friendica\Object\Image;
use Friendica\Protocol\OStatus;
use Friendica\Util\Crypto;
use Friendica\Util\DateTimeFormat;
use Friendica\Util\Network;
use Friendica\Util\XML;
use Friendica\Protocol\Diaspora;
use dba;
use DOMDocument;
use DOMXPath;
use HTMLPurifier;
use HTMLPurifier_Config;
require_once 'boot.php';
require_once 'include/dba.php';
require_once "include/enotify.php";
require_once "include/items.php";
require_once "include/text.php";
/**
* @brief This class contain functions to create and send DFRN XML files
*/
class DFRN
{
const TOP_LEVEL = 0; // Top level posting
const REPLY = 1; // Regular reply that is stored locally
const 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 $owner Owner record
*
* @return string DFRN entries
* @todo Find proper type-hints
*/
public static function entries($items, $owner)
{
$doc = new DOMDocument('1.0', 'utf-8');
$doc->formatOutput = true;
$root = self::addHeader($doc, $owner, "dfrn:owner", "", false);
if (! count($items)) {
return trim($doc->saveXML());
}
foreach ($items as $item) {
// These values aren't sent when sending from the queue.
/// @todo Check if we can set these values from the queue or if they are needed at all.
$item["entry:comment-allow"] = defaults($item, "entry:comment-allow", true);
$item["entry:cid"] = defaults($item, "entry:cid", 0);
$entry = self::entry($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[] = $item['id'];
}
if (!empty($ids)) {
$ret = Item::select(Item::DELIVER_FIELDLIST, ['id' => $ids]);
$items = Item::inArray($ret);
} else {
$items = [];
}
/*
* 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];
}
$ret = Item::select(Item::DELIVER_FIELDLIST, $condition);
$items = Item::inArray($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, '&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 = XML::parseString("<dummy>" . $r->link . "</dummy>", false);
if (is_object($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 = Item::selectFirst(['guid', 'plink'], ['uri' => $parent_item, 'uid' => $item['uid']]);
$attributes = ["ref" => $parent_item, "type" => "text/html",
"href" => $parent['plink'],
"dfrn:diaspora_guid" => $parent['guid']];
XML::addElement($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)) {
$conversation = dba::selectFirst('conversation', ['conversation-uri', 'conversation-href'], ['item-uri' => $item['parent-uri']]);
if (DBM::is_result($conversation)) {
if ($conversation['conversation-uri'] != '') {
$conversation_uri = $conversation['conversation-uri'];
}
if ($conversation['conversation-href'] != '') {
$conversation_href = $conversation['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, '<?xml') === false) {
logger('dfrn_deliver: no valid XML returned');
logger('dfrn_deliver: returned XML: ' . $xml, LOGGER_DATA);
Contact::markForArchival($contact);
return 3;
}
$res = XML::parseString($xml);
if ((intval($res->status) != 0) || !strlen($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('<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:
$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, '<?xml') === false) {
logger('dfrn_deliver: phase 2: no valid XML returned');
logger('dfrn_deliver: phase 2: returned XML: ' . $xml, LOGGER_DATA);
Contact::markForArchival($contact);
return 3;
}
$res = XML::parseString($xml);
if (!isset($res->status)) {
Contact::markForArchival($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, '<?xml') === false) {
logger('No valid XML returned from ' . $contact['id'] . ' - ' . $dest_url);
logger('Returned XML: ' . $xml, LOGGER_DATA);
Contact::markForArchival($contact);
return 3;
}
$res = XML::parseString($xml);
if (empty($res->status)) {
Contact::markForArchival($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 = [];
$author["name"] = XML::getFirstNodeValue($xpath, $element."/atom:name/text()", $context);
$author["link"] = XML::getFirstNodeValue($xpath, $element."/atom:uri/text()", $context);
$fields = ['id', 'uid', 'url', 'network', 'avatar-date', 'avatar', 'name-date', 'uri-date', 'addr',
'name', 'nick', 'about', 'location', 'keywords', 'xmpp', 'bdyear', 'bd', 'hidden', 'contact-type'];
$condition = ["`uid` = ? AND `nurl` = ? AND `network` != ?",
$importer["importer_uid"], normalise_link($author["link"]), NETWORK_STATUSNET];
$contact_old = dba::selectFirst('contact', $fields, $condition);
if (DBM::is_result($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-unknown"] = true;
$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
$value = XML::getFirstNodeValue($xpath, $element . "/dfrn:handle/text()", $context);
if ($value != "") {
$poco["addr"] = $value;
}
$value = XML::getFirstNodeValue($xpath, $element . "/poco:displayName/text()", $context);
if ($value != "") {
$poco["name"] = $value;
}
$value = XML::getFirstNodeValue($xpath, $element . "/poco:preferredUsername/text()", $context);
if ($value != "") {
$poco["nick"] = $value;
}
$value = XML::getFirstNodeValue($xpath, $element . "/poco:note/text()", $context);
if ($value != "") {
$poco["about"] = $value;
}
$value = XML::getFirstNodeValue($xpath, $element . "/poco:address/poco:formatted/text()", $context);
if ($value != "") {
$poco["location"] = $value;
}
/// @todo Only search for elements with "poco:type" = "xmpp"
$value = XML::getFirstNodeValue($xpath, $element . "/poco:ims/poco:value/text()", $context);
if ($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.
$hide = intval(XML::getFirstNodeValue($xpath, $element . "/dfrn:hide/text()", $context) == "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
$birthday = XML::getFirstNodeValue($xpath, $element . "/poco:birthday/text()", $context);
if (strtotime($birthday) > time()) {
$bd_timestamp = strtotime($birthday);
$poco["bdyear"] = date("Y", $bd_timestamp);
}
// "poco:birthday" is the birthday in the format "yyyy-mm-dd"
$value = XML::getFirstNodeValue($xpath, $element . "/poco:birthday/text()", $context);
if (!in_array($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, $condition);
Contact::updateAvatar($relocate["avatar"], $importer["importer_uid"], $importer["id"], true);
logger('Contacts 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;
$parent = Item::selectFirst(['parent-uri'], ['uri' => $item["parent-uri"]]);
if (DBM::is_result($parent)) {
$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
$sql_extra
LIMIT 1",
dbesc($parent["parent-uri"]),
dbesc($parent["parent-uri"]),
dbesc($parent["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_ACTIVITY;
// only one like or dislike per person
// splitted into two queries for performance issues
$condition = ['uid' => $item["uid"], 'author-id' => $item["author-id"], 'gravity' => GRAVITY_ACTIVITY,
'verb' => $item["verb"], 'parent-uri' => $item["parent-uri"]];
if (Item::exists($condition)) {
return false;
}
$condition = ['uid' => $item["uid"], 'author-id' => $item["author-id"], 'gravity' => GRAVITY_ACTIVITY,
'verb' => $item["verb"], 'thr-parent' => $item["parent-uri"]];
if (Item::exists($condition)) {
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) {
$item_tag = Item::selectFirst(['id', 'tag'], ['uri' => $xt->id, 'uid' => $importer["importer_uid"]]);
if (!DBM::is_result($item_tag)) {
logger("Query failed to execute, no result returned in " . __FUNCTION__);
return false;
}
// extract tag, if not duplicate, add to parent item
if ($xo->content) {
if (!stristr($item_tag["tag"], trim($xo->content))) {
$tag = $item_tag["tag"] . (strlen($item_tag["tag"]) ? ',' : '') . '#[url=' . $xo->id . ']'. $xo->content . '[/url]';
Item::update(['tag' => $tag], ['id' => $item_tag["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
$item["uri"] = XML::getFirstNodeValue($xpath, "atom:id/text()", $entry);
$item["edited"] = XML::getFirstNodeValue($xpath, "atom:updated/text()", $entry);
$current = Item::selectFirst(['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);
$owner_unknown = (isset($owner["contact-unknown"]) && $owner["contact-unknown"]);
$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);
$item["title"] = XML::getFirstNodeValue($xpath, "atom:title/text()", $entry);
$item["created"] = XML::getFirstNodeValue($xpath, "atom:published/text()", $entry);
$item["body"] = XML::getFirstNodeValue($xpath, "dfrn:env/text()", $entry);
$item["body"] = str_replace([' ',"\t","\r","\n"], ['','','',''], $item["body"]);
// make sure nobody is trying to sneak some html tags by us