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friendica-github/include/ostatus.php
Michael 08f461f70c Bugfix: Revive dead contacts
2017-10-15 19:34:15 +00:00

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<?php
/**
* @file include/ostatus.php
*/
use Friendica\App;
use Friendica\Core\System;
use Friendica\Core\Config;
use Friendica\Network\Probe;
use Friendica\Util\Lock;
require_once 'include/Contact.php';
require_once 'include/threads.php';
require_once 'include/html2bbcode.php';
require_once 'include/bbcode.php';
require_once 'include/items.php';
require_once 'mod/share.php';
require_once 'include/enotify.php';
require_once 'include/socgraph.php';
require_once 'include/Photo.php';
require_once 'include/probe.php';
require_once 'include/follow.php';
require_once 'include/api.php';
require_once 'mod/proxy.php';
require_once 'include/xml.php';
require_once 'include/cache.php';
/**
* @brief This class contain functions for the OStatus protocol
*
*/
class ostatus {
private static $itemlist;
private static $conv_list = array();
/**
* @brief Fetches author data
*
* @param object $xpath The xpath object
* @param object $context The xml context of the author details
* @param array $importer user record of the importing user
* @param array $contact Called by reference, will contain the fetched contact
* @param bool $onlyfetch Only fetch the header without updating the contact entries
*
* @return array Array of author related entries for the item
*/
private static function fetchauthor($xpath, $context, $importer, &$contact, $onlyfetch) {
$author = array();
$author["author-link"] = $xpath->evaluate('atom:author/atom:uri/text()', $context)->item(0)->nodeValue;
$author["author-name"] = $xpath->evaluate('atom:author/atom:name/text()', $context)->item(0)->nodeValue;
$addr = $xpath->evaluate('atom:author/atom:email/text()', $context)->item(0)->nodeValue;
$aliaslink = $author["author-link"];
$alternate = $xpath->query("atom:author/atom:link[@rel='alternate']", $context)->item(0)->attributes;
if (is_object($alternate)) {
foreach ($alternate AS $attributes) {
if (($attributes->name == "href") && ($attributes->textContent != "")) {
$author["author-link"] = $attributes->textContent;
}
}
}
$author["contact-id"] = $contact["id"];
$found = false;
if ($aliaslink != '') {
$condition = array("`uid` = ? AND `alias` = ? AND `network` != ?",
$importer["uid"], $aliaslink, NETWORK_STATUSNET);
$r = dba::select('contact', array(), $condition, array('limit' => 1));
if (dbm::is_result($r)) {
$found = true;
if ($r['blocked']) {
$r['id'] = -1;
}
$contact = $r;
$author["contact-id"] = $r["id"];
}
}
if (!$found && ($author["author-link"] != "")) {
if ($aliaslink == "") {
$aliaslink = $author["author-link"];
}
$condition = array("`uid` = ? AND `nurl` IN (?, ?) AND `network` != ?", $importer["uid"],
normalise_link($author["author-link"]), normalise_link($aliaslink), NETWORK_STATUSNET);
$r = dba::select('contact', array(), $condition, array('limit' => 1));
if (dbm::is_result($r)) {
$found = true;
if ($r['blocked']) {
$r['id'] = -1;
}
$contact = $r;
$author["contact-id"] = $r["id"];
}
}
if (!$found && ($addr != "")) {
$condition = array("`uid` = ? AND `addr` = ? AND `network` != ?",
$importer["uid"], $addr, NETWORK_STATUSNET);
$r = dba::select('contact', array(), $condition, array('limit' => 1));
if (dbm::is_result($r)) {
$found = true;
if ($r['blocked']) {
$r['id'] = -1;
}
$contact = $r;
$author["contact-id"] = $r["id"];
}
}
$avatarlist = array();
$avatars = $xpath->query("atom:author/atom:link[@rel='avatar']", $context);
foreach ($avatars AS $avatar) {
$href = "";
$width = 0;
foreach ($avatar->attributes AS $attributes) {
if ($attributes->name == "href") {
$href = $attributes->textContent;
}
if ($attributes->name == "width") {
$width = $attributes->textContent;
}
}
if ($href != "") {
$avatarlist[$width] = $href;
}
}
if (count($avatarlist) > 0) {
krsort($avatarlist);
$author["author-avatar"] = Probe::fixAvatar(current($avatarlist), $author["author-link"]);
}
$displayname = $xpath->evaluate('atom:author/poco:displayName/text()', $context)->item(0)->nodeValue;
if ($displayname != "") {
$author["author-name"] = $displayname;
}
$author["owner-name"] = $author["author-name"];
$author["owner-link"] = $author["author-link"];
$author["owner-avatar"] = $author["author-avatar"];
// Only update the contacts if it is an OStatus contact
if ($r && ($r['id'] > 0) && !$onlyfetch && ($contact["network"] == NETWORK_OSTATUS)) {
// This contact is vital, so we awake it from the dead
unmark_for_death($contact);
// Update contact data
$current = $contact;
unset($current['name-date']);
// This query doesn't seem to work
// $value = $xpath->query("atom:link[@rel='salmon']", $context)->item(0)->nodeValue;
// if ($value != "")
// $contact["notify"] = $value;
// This query doesn't seem to work as well - I hate these queries
// $value = $xpath->query("atom:link[@rel='self' and @type='application/atom+xml']", $context)->item(0)->nodeValue;
// if ($value != "")
// $contact["poll"] = $value;
$contact['url'] = $author["author-link"];
$contact['nurl'] = normalise_link($contact['url']);
$value = $xpath->evaluate('atom:author/atom:uri/text()', $context)->item(0)->nodeValue;
if ($value != "")
$contact["alias"] = $value;
$value = $xpath->evaluate('atom:author/poco:displayName/text()', $context)->item(0)->nodeValue;
if ($value != "")
$contact["name"] = $value;
$value = $xpath->evaluate('atom:author/poco:preferredUsername/text()', $context)->item(0)->nodeValue;
if ($value != "")
$contact["nick"] = $value;
$value = $xpath->evaluate('atom:author/poco:note/text()', $context)->item(0)->nodeValue;
if ($value != "")
$contact["about"] = html2bbcode($value);
$value = $xpath->evaluate('atom:author/poco:address/poco:formatted/text()', $context)->item(0)->nodeValue;
if ($value != "")
$contact["location"] = $value;
$contact['name-date'] = datetime_convert();
dba::update('contact', $contact, array('id' => $contact["id"]), $current);
if (!empty($author["author-avatar"]) && ($author["author-avatar"] != $current['avatar'])) {
logger("Update profile picture for contact ".$contact["id"], LOGGER_DEBUG);
update_contact_avatar($author["author-avatar"], $importer["uid"], $contact["id"]);
}
// Ensure that we are having this contact (with uid=0)
$cid = get_contact($aliaslink, 0);
if ($cid) {
$fields = array('url', 'nurl', 'name', 'nick', 'alias', 'about', 'location');
$old_contact = dba::select('contact', $fields, array('id' => $cid), array('limit' => 1));
// Update it with the current values
$fields = array('url' => $author["author-link"], 'name' => $contact["name"],
'nurl' => normalise_link($author["author-link"]),
'nick' => $contact["nick"], 'alias' => $contact["alias"],
'about' => $contact["about"], 'location' => $contact["location"],
'success_update' => datetime_convert(), 'last-update' => datetime_convert());
dba::update('contact', $fields, array('id' => $cid), $old_contact);
// Update the avatar
update_contact_avatar($author["author-avatar"], 0, $cid);
}
$contact["generation"] = 2;
$contact["hide"] = false; // OStatus contacts are never hidden
$contact["photo"] = $author["author-avatar"];
$gcid = update_gcontact($contact);
link_gcontact($gcid, $contact["uid"], $contact["id"]);
}
return $author;
}
/**
* @brief Fetches author data from a given XML string
*
* @param string $xml The XML
* @param array $importer user record of the importing user
*
* @return array Array of author related entries for the item
*/
public static function salmon_author($xml, $importer) {
if ($xml == "")
return;
$doc = new DOMDocument();
@$doc->loadXML($xml);
$xpath = new DomXPath($doc);
$xpath->registerNamespace('atom', NAMESPACE_ATOM1);
$xpath->registerNamespace('thr', NAMESPACE_THREAD);
$xpath->registerNamespace('georss', NAMESPACE_GEORSS);
$xpath->registerNamespace('activity', NAMESPACE_ACTIVITY);
$xpath->registerNamespace('media', NAMESPACE_MEDIA);
$xpath->registerNamespace('poco', NAMESPACE_POCO);
$xpath->registerNamespace('ostatus', NAMESPACE_OSTATUS);
$xpath->registerNamespace('statusnet', NAMESPACE_STATUSNET);
$entries = $xpath->query('/atom:entry');
foreach ($entries AS $entry) {
// fetch the author
$author = self::fetchauthor($xpath, $entry, $importer, $contact, true);
return $author;
}
}
/**
* @brief Read attributes from element
*
* @param object $element Element object
*
* @return array attributes
*/
private static function read_attributes($element) {
$attribute = array();
foreach ($element->attributes AS $attributes) {
$attribute[$attributes->name] = $attributes->textContent;
}
return $attribute;
}
/**
* @brief Imports an XML string containing OStatus elements
*
* @param string $xml The XML
* @param array $importer user record of the importing user
* @param array $contact
* @param string $hub Called by reference, returns the fetched hub data
*/
public static function import($xml, $importer, &$contact, &$hub) {
self::process($xml, $importer, $contact, $hub);
}
/**
* @brief Internal feed processing
*
* @param string $xml The XML
* @param array $importer user record of the importing user
* @param array $contact
* @param string $hub Called by reference, returns the fetched hub data
* @param boolean $stored Is the post fresh imported or from the database?
* @param boolean $initialize Is it the leading post so that data has to be initialized?
*
* @return boolean Could the XML be processed?
*/
private static function process($xml, $importer, &$contact, &$hub, $stored = false, $initialize = true) {
if ($initialize) {
self::$itemlist = array();
self::$conv_list = array();
}
logger("Import OStatus message", LOGGER_DEBUG);
if ($xml == "") {
return false;
}
$doc = new DOMDocument();
@$doc->loadXML($xml);
$xpath = new DomXPath($doc);
$xpath->registerNamespace('atom', NAMESPACE_ATOM1);
$xpath->registerNamespace('thr', NAMESPACE_THREAD);
$xpath->registerNamespace('georss', NAMESPACE_GEORSS);
$xpath->registerNamespace('activity', NAMESPACE_ACTIVITY);
$xpath->registerNamespace('media', NAMESPACE_MEDIA);
$xpath->registerNamespace('poco', NAMESPACE_POCO);
$xpath->registerNamespace('ostatus', NAMESPACE_OSTATUS);
$xpath->registerNamespace('statusnet', NAMESPACE_STATUSNET);
$hub = "";
$hub_attributes = $xpath->query("/atom:feed/atom:link[@rel='hub']")->item(0)->attributes;
if (is_object($hub_attributes)) {
foreach ($hub_attributes AS $hub_attribute) {
if ($hub_attribute->name == "href") {
$hub = $hub_attribute->textContent;
logger("Found hub ".$hub, LOGGER_DEBUG);
}
}
}
$header = array();
$header["uid"] = $importer["uid"];
$header["network"] = NETWORK_OSTATUS;
$header["type"] = "remote";
$header["wall"] = 0;
$header["origin"] = 0;
$header["gravity"] = GRAVITY_PARENT;
$first_child = $doc->firstChild->tagName;
if ($first_child == "feed") {
$entries = $xpath->query('/atom:feed/atom:entry');
} else {
$entries = $xpath->query('/atom:entry');
}
if ($entries->length == 1) {
// We reformat the XML to make it better readable
$doc2 = new DOMDocument();
$doc2->loadXML($xml);
$doc2->preserveWhiteSpace = false;
$doc2->formatOutput = true;
$xml2 = $doc2->saveXML();
$header["protocol"] = PROTOCOL_OSTATUS_SALMON;
$header["source"] = $xml2;
} elseif (!$initialize) {
return false;
}
// Fetch the first author
$authordata = $xpath->query('//author')->item(0);
$author = self::fetchauthor($xpath, $authordata, $importer, $contact, $stored);
$entry = $xpath->query('/atom:entry');
// Reverse the order of the entries
$entrylist = array();
foreach ($entries AS $entry) {
$entrylist[] = $entry;
}
foreach (array_reverse($entrylist) AS $entry) {
// fetch the author
$authorelement = $xpath->query('/atom:entry/atom:author', $entry);
if ($authorelement->length == 0) {
$authorelement = $xpath->query('atom:author', $entry);
}
if ($authorelement->length > 0) {
$author = self::fetchauthor($xpath, $entry, $importer, $contact, $stored);
}
$value = $xpath->evaluate('atom:author/poco:preferredUsername/text()', $entry)->item(0)->nodeValue;
if ($value != "") {
$nickname = $value;
} else {
$nickname = $author["author-name"];
}
$item = array_merge($header, $author);
$item["uri"] = $xpath->query('atom:id/text()', $entry)->item(0)->nodeValue;
$item["verb"] = $xpath->query('activity:verb/text()', $entry)->item(0)->nodeValue;
// Delete a message
if (in_array($item["verb"], array('qvitter-delete-notice', ACTIVITY_DELETE, 'delete'))) {
self::deleteNotice($item);
continue;
}
if (in_array($item["verb"], array(NAMESPACE_OSTATUS."/unfavorite", ACTIVITY_UNFAVORITE))) {
// Ignore "Unfavorite" message
logger("Ignore unfavorite message ".print_r($item, true), LOGGER_DEBUG);
continue;
}
// Deletions come with the same uri, so we check for duplicates after processing deletions
if (dba::exists('item', array('uid' => $importer["uid"], 'uri' => $item["uri"]))) {
logger('Post with URI '.$item["uri"].' already existed for user '.$importer["uid"].'.', LOGGER_DEBUG);
continue;
} else {
logger('Processing post with URI '.$item["uri"].' for user '.$importer["uid"].'.', LOGGER_DEBUG);
}
if ($item["verb"] == ACTIVITY_JOIN) {
// ignore "Join" messages
logger("Ignore join message ".print_r($item, true), LOGGER_DEBUG);
continue;
}
if ($item["verb"] == "http://mastodon.social/schema/1.0/block") {
// ignore mastodon "block" messages
logger("Ignore block message ".print_r($item, true), LOGGER_DEBUG);
continue;
}
if ($item["verb"] == ACTIVITY_FOLLOW) {
new_follower($importer, $contact, $item, $nickname);
continue;
}
if ($item["verb"] == NAMESPACE_OSTATUS."/unfollow") {
lose_follower($importer, $contact, $item, $dummy);
continue;
}
if ($item["verb"] == ACTIVITY_FAVORITE) {
$orig_uri = $xpath->query("activity:object/atom:id", $entry)->item(0)->nodeValue;
logger("Favorite ".$orig_uri." ".print_r($item, true));
$item["verb"] = ACTIVITY_LIKE;
$item["parent-uri"] = $orig_uri;
$item["gravity"] = GRAVITY_LIKE;
}
// http://activitystrea.ms/schema/1.0/rsvp-yes
if (!in_array($item["verb"], array(ACTIVITY_POST, ACTIVITY_LIKE, ACTIVITY_SHARE))) {
logger("Unhandled verb ".$item["verb"]." ".print_r($item, true), LOGGER_DEBUG);
}
self::processPost($xpath, $entry, $item, $importer);
if ($initialize && (count(self::$itemlist) > 0)) {
if (self::$itemlist[0]['uri'] == self::$itemlist[0]['parent-uri']) {
// We will import it everytime, when it is started by our contacts
$valid = !empty(self::$itemlist[0]['contact-id']);
if (!$valid) {
// If not, then it depends on this setting
$valid = !Config::get('system','ostatus_full_threads');
}
if ($valid) {
// Never post a thread when the only interaction by our contact was a like
$valid = false;
$verbs = array(ACTIVITY_POST, ACTIVITY_SHARE);
foreach (self::$itemlist AS $item) {
if (!empty($item['contact-id']) && in_array($item['verb'], $verbs)) {
$valid = true;
}
}
}
} else {
// But we will only import complete threads
$valid = dba::exists('item', array('uid' => $importer["uid"], 'uri' => self::$itemlist[0]['parent-uri']));
}
if ($valid) {
$default_contact = 0;
$key = count(self::$itemlist);
for ($key = count(self::$itemlist) - 1; $key >= 0; $key--) {
if (empty(self::$itemlist[$key]['contact-id'])) {
self::$itemlist[$key]['contact-id'] = $default_contact;
} else {
$default_contact = $item['contact-id'];
}
}
foreach (self::$itemlist AS $item) {
$found = dba::exists('item', array('uid' => $importer["uid"], 'uri' => $item["uri"]));
if ($found) {
logger("Item with uri ".$item["uri"]." for user ".$importer["uid"]." already exists.", LOGGER_DEBUG);
} elseif ($item['contact-id'] < 0) {
logger("Item with uri ".$item["uri"]." is from a blocked contact.", LOGGER_DEBUG);
} else {
// We are having duplicated entries. Hopefully this solves it.
if (Lock::set('ostatus_process_item_store')) {
$ret = item_store($item);
Lock::remove('ostatus_process_item_store');
logger("Item with uri ".$item["uri"]." for user ".$importer["uid"].' stored. Return value: '.$ret);
} else {
$ret = item_store($item);
logger("We couldn't lock - but tried to store the item anyway. Return value is ".$ret);
}
}
}
}
self::$itemlist = array();
}
logger('Processing done for post with URI '.$item["uri"].' for user '.$importer["uid"].'.', LOGGER_DEBUG);
}
return true;
}
private static function deleteNotice($item) {
$condition = array('uid' => $item['uid'], 'author-link' => $item['author-link'], 'uri' => $item['uri']);
$deleted = dba::select('item', array('id', 'parent-uri'), $condition, array('limit' => 1));
if (!dbm::is_result($deleted)) {
logger('Item from '.$item['author-link'].' with uri '.$item['uri'].' for user '.$item['uid']." wasn't found. We don't delete it. ");
return;
}
// Currently we don't have a central deletion function that we could use in this case. The function "item_drop" doesn't work for that case
dba::update('item', array('deleted' => true, 'title' => '', 'body' => '',
'edited' => datetime_convert(), 'changed' => datetime_convert()),
array('id' => $deleted["id"]));
delete_thread($deleted["id"], $deleted["parent-uri"]);
logger('Deleted item with uri '.$item['uri'].' for user '.$item['uid']);
}
/**
* @brief Processes the XML for a post
*
* @param object $xpath The xpath object
* @param object $entry The xml entry that is processed
* @param array $item The item array
* @param array $importer user record of the importing user
*/
private static function processPost($xpath, $entry, &$item, $importer) {
$item["body"] = html2bbcode($xpath->query('atom:content/text()', $entry)->item(0)->nodeValue);
$item["object-type"] = $xpath->query('activity:object-type/text()', $entry)->item(0)->nodeValue;
if (($item["object-type"] == ACTIVITY_OBJ_BOOKMARK) || ($item["object-type"] == ACTIVITY_OBJ_EVENT)) {
$item["title"] = $xpath->query('atom:title/text()', $entry)->item(0)->nodeValue;
$item["body"] = $xpath->query('atom:summary/text()', $entry)->item(0)->nodeValue;
} elseif ($item["object-type"] == ACTIVITY_OBJ_QUESTION) {
$item["title"] = $xpath->query('atom:title/text()', $entry)->item(0)->nodeValue;
}
$item["created"] = $xpath->query('atom:published/text()', $entry)->item(0)->nodeValue;
$item["edited"] = $xpath->query('atom:updated/text()', $entry)->item(0)->nodeValue;
$conversation = $xpath->query('ostatus:conversation/text()', $entry)->item(0)->nodeValue;
$item['conversation-uri'] = $conversation;
$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;
}
}
}
$related = "";
$inreplyto = $xpath->query('thr:in-reply-to', $entry);
if (is_object($inreplyto->item(0))) {
foreach ($inreplyto->item(0)->attributes AS $attributes) {
if ($attributes->name == "ref") {
$item["parent-uri"] = $attributes->textContent;
}
if ($attributes->name == "href") {
$related = $attributes->textContent;
}
}
}
$georsspoint = $xpath->query('georss:point', $entry);
if (!empty($georsspoint) && ($georsspoint->length > 0)) {
$item["coord"] = $georsspoint->item(0)->nodeValue;
}
$categories = $xpath->query('atom:category', $entry);
if ($categories) {
foreach ($categories AS $category) {
foreach ($category->attributes AS $attributes) {
if ($attributes->name == "term") {
$term = $attributes->textContent;
if (strlen($item["tag"])) {
$item["tag"] .= ',';
}
$item["tag"] .= "#[url=".System::baseUrl()."/search?tag=".$term."]".$term."[/url]";
}
}
}
}
$self = '';
$add_body = '';
$links = $xpath->query('atom:link', $entry);
if ($links) {
$link_data = self::processLinks($links, $item);
$self = $link_data['self'];
$add_body = $link_data['add_body'];
}
$repeat_of = "";
$notice_info = $xpath->query('statusnet:notice_info', $entry);
if ($notice_info && ($notice_info->length > 0)) {
foreach ($notice_info->item(0)->attributes AS $attributes) {
if ($attributes->name == "source") {
$item["app"] = strip_tags($attributes->textContent);
}
if ($attributes->name == "repeat_of") {
$repeat_of = $attributes->textContent;
}
}
}
// Is it a repeated post?
if (($repeat_of != "") || ($item["verb"] == ACTIVITY_SHARE)) {
$link_data = self::processRepeatedItem($xpath, $entry, $item, $importer);
if (!empty($link_data['add_body'])) {
$add_body .= $link_data['add_body'];
}
}
$item["body"] .= $add_body;
// Only add additional data when there is no picture in the post
if (!strstr($item["body"],'[/img]')) {
$item["body"] = add_page_info_to_body($item["body"]);
}
// Mastodon Content Warning
if (($item["verb"] == ACTIVITY_POST) && $xpath->evaluate('boolean(atom:summary)', $entry)) {
$clear_text = $xpath->query('atom:summary/text()', $entry)->item(0)->nodeValue;
$item["body"] = html2bbcode($clear_text) . '[spoiler]' . $item["body"] . '[/spoiler]';
}
if (($self != '') && empty($item['protocol'])) {
self::fetchSelf($self, $item);
}
if (!empty($item["conversation-href"])) {
self::fetchConversation($item['conversation-href'], $item['conversation-uri']);
}
if (isset($item["parent-uri"]) && ($related != '')) {
if (!dba::exists('item', array('uid' => $importer["uid"], 'uri' => $item['parent-uri']))) {
self::fetchRelated($related, $item["parent-uri"], $importer);
} else {
logger('Reply with URI '.$item["uri"].' already existed for user '.$importer["uid"].'.', LOGGER_DEBUG);
}
$item["type"] = 'remote-comment';
$item["gravity"] = GRAVITY_COMMENT;
} else {
$item["parent-uri"] = $item["uri"];
}
if (($item['author-link'] != '') && !empty($item['protocol'])) {
$item = store_conversation($item);
}
self::$itemlist[] = $item;
}
/**
* @brief Fetch the conversation for posts
*
* @param string $conversation The link to the conversation
* @param string $conversation_uri The conversation in "uri" format
*/
private static function fetchConversation($conversation, $conversation_uri) {
// Ensure that we only store a conversation once in a process
if (isset(self::$conv_list[$conversation])) {
return;
}
self::$conv_list[$conversation] = true;
$conversation_data = z_fetch_url($conversation, false, $redirects, array('accept_content' => 'application/atom+xml, text/html'));
if (!$conversation_data['success']) {
return;
}
$xml = '';
if (stristr($conversation_data['header'], 'Content-Type: application/atom+xml')) {
$xml = $conversation_data['body'];
}
if ($xml == '') {
$doc = new DOMDocument();
if (!@$doc->loadHTML($conversation_data['body'])) {
return;
}
$xpath = new DomXPath($doc);
$links = $xpath->query('//link');
if ($links) {
foreach ($links AS $link) {
$attribute = ostatus::read_attributes($link);
if (($attribute['rel'] == 'alternate') && ($attribute['type'] == 'application/atom+xml')) {
$file = $attribute['href'];
}
}
if ($file != '') {
$conversation_atom = z_fetch_url($attribute['href']);
if ($conversation_atom['success']) {
$xml = $conversation_atom['body'];
}
}
}
}
if ($xml == '') {
return;
}
self::storeConversation($xml, $conversation, $conversation_uri);
}
/**
* @brief Store a feed in several conversation entries
*
* @param string $xml The feed
*/
private static function storeConversation($xml, $conversation = '', $conversation_uri = '') {
$doc = new DOMDocument();
@$doc->loadXML($xml);
$xpath = new DomXPath($doc);
$xpath->registerNamespace('atom', NAMESPACE_ATOM1);
$xpath->registerNamespace('thr', NAMESPACE_THREAD);
$xpath->registerNamespace('ostatus', NAMESPACE_OSTATUS);
$entries = $xpath->query('/atom:feed/atom:entry');
// Now store the entries
foreach ($entries AS $entry) {
$doc2 = new DOMDocument();
$doc2->preserveWhiteSpace = false;
$doc2->formatOutput = true;
$conv_data = array();
$conv_data['protocol'] = PROTOCOL_SPLITTED_CONV;
$conv_data['network'] = NETWORK_OSTATUS;
$conv_data['uri'] = $xpath->query('atom:id/text()', $entry)->item(0)->nodeValue;
$inreplyto = $xpath->query('thr:in-reply-to', $entry);
if (is_object($inreplyto->item(0))) {
foreach ($inreplyto->item(0)->attributes AS $attributes) {
if ($attributes->name == "ref") {
$conv_data['reply-to-uri'] = $attributes->textContent;
}
}
}
$conv = $xpath->query('ostatus:conversation/text()', $entry)->item(0)->nodeValue;
$conv_data['conversation-uri'] = $conv;
$conv = $xpath->query('ostatus:conversation', $entry);
if (is_object($conv->item(0))) {
foreach ($conv->item(0)->attributes AS $attributes) {
if ($attributes->name == "ref") {
$conv_data['conversation-uri'] = $attributes->textContent;
}
if ($attributes->name == "href") {
$conv_data['conversation-href'] = $attributes->textContent;
}
}
}
if ($conversation != '') {
$conv_data['conversation-uri'] = $conversation;
}
if ($conversation_uri != '') {
$conv_data['conversation-uri'] = $conversation_uri;
}
$entry = $doc2->importNode($entry, true);
$doc2->appendChild($entry);
$conv_data['source'] = $doc2->saveXML();
$condition = array('item-uri' => $conv_data['uri'],'protocol' => PROTOCOL_OSTATUS_FEED);
if (dba::exists('conversation', $condition)) {
logger('Delete deprecated entry for URI '.$conv_data['uri'], LOGGER_DEBUG);
dba::delete('conversation', array('item-uri' => $conv_data['uri']));
}
logger('Store conversation data for uri '.$conv_data['uri'], LOGGER_DEBUG);
store_conversation($conv_data);
}
}
/**
* @brief Fetch the own post so that it can be stored later
* @param array $item The item array
*
* We want to store the original data for later processing.
* This function is meant for cases where we process a feed with multiple entries.
* In that case we need to fetch the single posts here.
*
* @param string $self The link to the self item
*/
private static function fetchSelf($self, &$item) {
$condition = array('`item-uri` = ? AND `protocol` IN (?, ?)', $self, PROTOCOL_DFRN, PROTOCOL_OSTATUS_SALMON);
if (dba::exists('conversation', $condition)) {
logger('Conversation '.$item['uri'].' is already stored.', LOGGER_DEBUG);
return;
}
$self_data = z_fetch_url($self);
if (!$self_data['success']) {
return;
}
// We reformat the XML to make it better readable
$doc = new DOMDocument();
$doc->loadXML($self_data['body']);
$doc->preserveWhiteSpace = false;
$doc->formatOutput = true;
$xml = $doc->saveXML();
$item["protocol"] = PROTOCOL_OSTATUS_SALMON;
$item["source"] = $xml;
logger('Conversation '.$item['uri'].' is now fetched.', LOGGER_DEBUG);
}
/**
* @brief Fetch related posts and processes them
*
* @param string $related The link to the related item
* @param string $related_uri The related item in "uri" format
* @param array $importer user record of the importing user
*/
private static function fetchRelated($related, $related_uri, $importer) {
$condition = array('`item-uri` = ? AND `protocol` IN (?, ?)', $related_uri, PROTOCOL_DFRN, PROTOCOL_OSTATUS_SALMON);
$conversation = dba::select('conversation', array('source', 'protocol'), $condition, array('limit' => 1));
if (dbm::is_result($conversation)) {
$stored = true;
$xml = $conversation['source'];
if (self::process($xml, $importer, $contact, $hub, $stored, false)) {
logger('Got valid cached XML for URI '.$related_uri, LOGGER_DEBUG);
return;
}
if ($conversation['protocol'] == PROTOCOL_OSTATUS_SALMON) {
logger('Delete invalid cached XML for URI '.$related_uri, LOGGER_DEBUG);
dba::delete('conversation', array('item-uri' => $related_uri));
}
}
$stored = false;
$related_data = z_fetch_url($related, false, $redirects, array('accept_content' => 'application/atom+xml, text/html'));
if (!$related_data['success']) {
return;
}
$xml = '';
if (stristr($related_data['header'], 'Content-Type: application/atom+xml')) {
logger('Directly fetched XML for URI '.$related_uri, LOGGER_DEBUG);
$xml = $related_data['body'];
}
if ($xml == '') {
$doc = new DOMDocument();
if (!@$doc->loadHTML($related_data['body'])) {
return;
}
$xpath = new DomXPath($doc);
$atom_file = '';
$links = $xpath->query('//link');
if ($links) {
foreach ($links AS $link) {
$attribute = self::read_attributes($link);
if (($attribute['rel'] == 'alternate') && ($attribute['type'] == 'application/atom+xml')) {
$atom_file = $attribute['href'];
}
}
if ($atom_file != '') {
$related_atom = z_fetch_url($atom_file);
if ($related_atom['success']) {
logger('Fetched XML for URI '.$related_uri, LOGGER_DEBUG);
$xml = $related_atom['body'];
}
}
}
}
// Workaround for older GNU Social servers
if (($xml == '') && strstr($related, '/notice/')) {
$related_atom = z_fetch_url(str_replace('/notice/', '/api/statuses/show/', $related).'.atom');
if ($related_atom['success']) {
logger('GNU Social workaround to fetch XML for URI '.$related_uri, LOGGER_DEBUG);
$xml = $related_atom['body'];
}
}
// Even more worse workaround for GNU Social ;-)
if ($xml == '') {
$related_guess = ostatus::convert_href($related_uri);
$related_atom = z_fetch_url(str_replace('/notice/', '/api/statuses/show/', $related_guess).'.atom');
if ($related_atom['success']) {
logger('GNU Social workaround 2 to fetch XML for URI '.$related_uri, LOGGER_DEBUG);
$xml = $related_atom['body'];
}
}
// Finally we take the data that we fetched from "ostatus:conversation"
if ($xml == '') {
$condition = array('item-uri' => $related_uri, 'protocol' => PROTOCOL_SPLITTED_CONV);
$conversation = dba::select('conversation', array('source'), $condition, array('limit' => 1));
if (dbm::is_result($conversation)) {
$stored = true;
logger('Got cached XML from conversation for URI '.$related_uri, LOGGER_DEBUG);
$xml = $conversation['source'];
}
}
if ($xml != '') {
self::process($xml, $importer, $contact, $hub, $stored, false);
} else {
logger("XML couldn't be fetched for URI: ".$related_uri." - href: ".$related, LOGGER_DEBUG);
}
return;
}
/**
* @brief Processes the XML for a repeated post
*
* @param object $xpath The xpath object
* @param object $entry The xml entry that is processed
* @param array $item The item array
* @param array $importer user record of the importing user
*
* @return array with data from links
*/
private static function processRepeatedItem($xpath, $entry, &$item, $importer) {
$activityobjects = $xpath->query('activity:object', $entry)->item(0);
if (!is_object($activityobjects)) {
return array();
}
$link_data = array();
$orig_uri = $xpath->query('atom:id/text()', $activityobjects)->item(0)->nodeValue;
$links = $xpath->query("atom:link", $activityobjects);
if ($links) {
$link_data = self::processLinks($links, $item);
}
$orig_body = $xpath->query('atom:content/text()', $activityobjects)->item(0)->nodeValue;
$orig_created = $xpath->query('atom:published/text()', $activityobjects)->item(0)->nodeValue;
$orig_edited = $xpath->query('atom:updated/text()', $activityobjects)->item(0)->nodeValue;
$orig_contact = $contact;
$orig_author = self::fetchauthor($xpath, $activityobjects, $importer, $orig_contact, false);
$item["author-name"] = $orig_author["author-name"];
$item["author-link"] = $orig_author["author-link"];
$item["author-avatar"] = $orig_author["author-avatar"];
$item["body"] = html2bbcode($orig_body);
$item["created"] = $orig_created;
$item["edited"] = $orig_edited;
$item["uri"] = $orig_uri;
$item["verb"] = $xpath->query('activity:verb/text()', $activityobjects)->item(0)->nodeValue;
$item["object-type"] = $xpath->query('activity:object-type/text()', $activityobjects)->item(0)->nodeValue;
$inreplyto = $xpath->query('thr:in-reply-to', $activityobjects);
if (is_object($inreplyto->item(0))) {
foreach ($inreplyto->item(0)->attributes AS $attributes) {
if ($attributes->name == "ref") {
$item["parent-uri"] = $attributes->textContent;
}
}
}
return $link_data;
}
/**
* @brief Processes links in the XML
*
* @param object $links The xml data that contain links
* @param array $item The item array
*
* @return array with data from the links
*/
private static function processLinks($links, &$item) {
$link_data = array('add_body' => '', 'self' => '');
foreach ($links AS $link) {
$attribute = self::read_attributes($link);
if (($attribute['rel'] != "") && ($attribute['href'] != "")) {
switch ($attribute['rel']) {
case "alternate":
$item["plink"] = $attribute['href'];
if (($item["object-type"] == ACTIVITY_OBJ_QUESTION) ||
($item["object-type"] == ACTIVITY_OBJ_EVENT)) {
$item["body"] .= add_page_info($attribute['href']);
}
break;
case "ostatus:conversation":
$link_data['conversation'] = $attribute['href'];
$item['conversation-href'] = $link_data['conversation'];
if (!isset($item['conversation-uri'])) {
$item['conversation-uri'] = $item['conversation-href'];
}
break;
case "enclosure":
$filetype = strtolower(substr($attribute['type'], 0, strpos($attribute['type'],'/')));
if ($filetype == 'image') {
$link_data['add_body'] .= "\n[img]".$attribute['href'].'[/img]';
} else {
if (strlen($item["attach"])) {
$item["attach"] .= ',';
}
if (!isset($attribute['length'])) {
$attribute['length'] = "0";
}
$item["attach"] .= '[attach]href="'.$attribute['href'].'" length="'.$attribute['length'].'" type="'.$attribute['type'].'" title="'.$attribute['title'].'"[/attach]';
}
break;
case "related":
if ($item["object-type"] != ACTIVITY_OBJ_BOOKMARK) {
if (!isset($item["parent-uri"])) {
$item["parent-uri"] = $attribute['href'];
}
$link_data['related'] = $attribute['href'];
} else {
$item["body"] .= add_page_info($attribute['href']);
}
break;
case "self":
if ($item["plink"] == '') {
$item["plink"] = $attribute['href'];
}
$link_data['self'] = $attribute['href'];
break;
}
}
}
return $link_data;
}
/**
* @brief Create an url out of an uri
*
* @param string $href URI in the format "parameter1:parameter1:..."
*
* @return string URL in the format http(s)://....
*/
public static function convert_href($href) {
$elements = explode(":",$href);
if ((count($elements) <= 2) || ($elements[0] != "tag"))
return $href;
$server = explode(",", $elements[1]);
$conversation = explode("=", $elements[2]);
if ((count($elements) == 4) && ($elements[2] == "post"))
return "http://".$server[0]."/notice/".$elements[3];
if ((count($conversation) != 2) || ($conversation[1] =="")) {
return $href;
}
if ($elements[3] == "objectType=thread") {
return "http://".$server[0]."/conversation/".$conversation[1];
} else {
return "http://".$server[0]."/notice/".$conversation[1];
}
return $href;
}
/**
* @brief Checks if the current post is a reshare
*
* @param array $item The item array of thw post
*
* @return string The guid if the post is a reshare
*/
private static function get_reshared_guid($item) {
$body = trim($item["body"]);
// Skip if it isn't a pure repeated messages
// Does it start with a share?
if (strpos($body, "[share") > 0)
return "";
// Does it end with a share?
if (strlen($body) > (strrpos($body, "[/share]") + 8))
return "";
$attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","$1",$body);
// Skip if there is no shared message in there
if ($body == $attributes)
return false;
$guid = "";
preg_match("/guid='(.*?)'/ism", $attributes, $matches);
if ($matches[1] != "")
$guid = $matches[1];
preg_match('/guid="(.*?)"/ism', $attributes, $matches);
if ($matches[1] != "")
$guid = $matches[1];
return $guid;
}
/**
* @brief Cleans the body of a post if it contains picture links
*
* @param string $body The body
*
* @return string The cleaned body
*/
private static function format_picture_post($body) {
$siteinfo = get_attached_data($body);
if (($siteinfo["type"] == "photo")) {
if (isset($siteinfo["preview"]))
$preview = $siteinfo["preview"];
else
$preview = $siteinfo["image"];
// Is it a remote picture? Then make a smaller preview here
$preview = proxy_url($preview, false, PROXY_SIZE_SMALL);
// Is it a local picture? Then make it smaller here
$preview = str_replace(array("-0.jpg", "-0.png"), array("-2.jpg", "-2.png"), $preview);
$preview = str_replace(array("-1.jpg", "-1.png"), array("-2.jpg", "-2.png"), $preview);
if (isset($siteinfo["url"]))
$url = $siteinfo["url"];
else
$url = $siteinfo["image"];
$body = trim($siteinfo["text"])." [url]".$url."[/url]\n[img]".$preview."[/img]";
}
return $body;
}
/**
* @brief Adds the header elements to the XML document
*
* @param object $doc XML document
* @param array $owner Contact data of the poster
*
* @return object header root element
*/
private static function add_header($doc, $owner) {
$a = get_app();
$root = $doc->createElementNS(NAMESPACE_ATOM1, 'feed');
$doc->appendChild($root);
$root->setAttribute("xmlns:thr", NAMESPACE_THREAD);
$root->setAttribute("xmlns:georss", NAMESPACE_GEORSS);
$root->setAttribute("xmlns:activity", NAMESPACE_ACTIVITY);
$root->setAttribute("xmlns:media", NAMESPACE_MEDIA);
$root->setAttribute("xmlns:poco", NAMESPACE_POCO);
$root->setAttribute("xmlns:ostatus", NAMESPACE_OSTATUS);
$root->setAttribute("xmlns:statusnet", NAMESPACE_STATUSNET);
$root->setAttribute("xmlns:mastodon", NAMESPACE_MASTODON);
$attributes = array("uri" => "https://friendi.ca", "version" => FRIENDICA_VERSION."-".DB_UPDATE_VERSION);
xml::add_element($doc, $root, "generator", FRIENDICA_PLATFORM, $attributes);
xml::add_element($doc, $root, "id", System::baseUrl()."/profile/".$owner["nick"]);
xml::add_element($doc, $root, "title", sprintf("%s timeline", $owner["name"]));
xml::add_element($doc, $root, "subtitle", sprintf("Updates from %s on %s", $owner["name"], $a->config["sitename"]));
xml::add_element($doc, $root, "logo", $owner["photo"]);
xml::add_element($doc, $root, "updated", datetime_convert("UTC", "UTC", "now", ATOM_TIME));
$author = self::add_author($doc, $owner);
$root->appendChild($author);
$attributes = array("href" => $owner["url"], "rel" => "alternate", "type" => "text/html");
xml::add_element($doc, $root, "link", "", $attributes);
/// @TODO We have to find out what this is
/// $attributes = array("href" => System::baseUrl()."/sup",
/// "rel" => "http://api.friendfeed.com/2008/03#sup",
/// "type" => "application/json");
/// xml::add_element($doc, $root, "link", "", $attributes);
self::hublinks($doc, $root, $owner["nick"]);
$attributes = array("href" => System::baseUrl()."/salmon/".$owner["nick"], "rel" => "salmon");
xml::add_element($doc, $root, "link", "", $attributes);
$attributes = array("href" => System::baseUrl()."/salmon/".$owner["nick"], "rel" => "http://salmon-protocol.org/ns/salmon-replies");
xml::add_element($doc, $root, "link", "", $attributes);
$attributes = array("href" => System::baseUrl()."/salmon/".$owner["nick"], "rel" => "http://salmon-protocol.org/ns/salmon-mention");
xml::add_element($doc, $root, "link", "", $attributes);
$attributes = array("href" => System::baseUrl()."/api/statuses/user_timeline/".$owner["nick"].".atom",
"rel" => "self", "type" => "application/atom+xml");
xml::add_element($doc, $root, "link", "", $attributes);
return $root;
}
/**
* @brief Add the link to the push hubs to the XML document
*
* @param object $doc XML document
* @param object $root XML root element where the hub links are added
*/
public static function hublinks($doc, $root, $nick) {
$h = System::baseUrl() . '/pubsubhubbub/'.$nick;
xml::add_element($doc, $root, "link", "", array("href" => $h, "rel" => "hub"));
}
/**
* @brief Adds attachement data to the XML document
*
* @param object $doc XML document
* @param object $root XML root element where the hub links are added
* @param array $item Data of the item that is to be posted
*/
private static function get_attachment($doc, $root, $item) {
$o = "";
$siteinfo = get_attached_data($item["body"]);
switch ($siteinfo["type"]) {
case 'photo':
$imgdata = get_photo_info($siteinfo["image"]);
$attributes = array("rel" => "enclosure",
"href" => $siteinfo["image"],
"type" => $imgdata["mime"],
"length" => intval($imgdata["size"]));
xml::add_element($doc, $root, "link", "", $attributes);
break;
case 'video':
$attributes = array("rel" => "enclosure",
"href" => $siteinfo["url"],
"type" => "text/html; charset=UTF-8",
"length" => "",
"title" => $siteinfo["title"]);
xml::add_element($doc, $root, "link", "", $attributes);
break;
default:
break;
}
if (!Config::get('system', 'ostatus_not_attach_preview') && ($siteinfo["type"] != "photo") && isset($siteinfo["image"])) {
$imgdata = get_photo_info($siteinfo["image"]);
$attributes = array("rel" => "enclosure",
"href" => $siteinfo["image"],
"type" => $imgdata["mime"],
"length" => intval($imgdata["size"]));
xml::add_element($doc, $root, "link", "", $attributes);
}
$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 author element to the XML document
*
* @param object $doc XML document
* @param array $owner Contact data of the poster
*
* @return object author element
*/
private static function add_author($doc, $owner) {
$r = q("SELECT `homepage`, `publish` FROM `profile` WHERE `uid` = %d AND `is-default` LIMIT 1", intval($owner["uid"]));
if (dbm::is_result($r)) {
$profile = $r[0];
}
$author = $doc->createElement("author");
xml::add_element($doc, $author, "id", $owner["url"]);
xml::add_element($doc, $author, "activity:object-type", ACTIVITY_OBJ_PERSON);
xml::add_element($doc, $author, "uri", $owner["url"]);
xml::add_element($doc, $author, "name", $owner["nick"]);
xml::add_element($doc, $author, "email", $owner["addr"]);
xml::add_element($doc, $author, "summary", bbcode($owner["about"], false, false, 7));
$attributes = array("rel" => "alternate", "type" => "text/html", "href" => $owner["url"]);
xml::add_element($doc, $author, "link", "", $attributes);
$attributes = array(
"rel" => "avatar",
"type" => "image/jpeg", // To-Do?
"media:width" => 175,
"media:height" => 175,
"href" => $owner["photo"]);
xml::add_element($doc, $author, "link", "", $attributes);
if (isset($owner["thumb"])) {
$attributes = array(
"rel" => "avatar",
"type" => "image/jpeg", // To-Do?
"media:width" => 80,
"media:height" => 80,
"href" => $owner["thumb"]);
xml::add_element($doc, $author, "link", "", $attributes);
}
xml::add_element($doc, $author, "poco:preferredUsername", $owner["nick"]);
xml::add_element($doc, $author, "poco:displayName", $owner["name"]);
xml::add_element($doc, $author, "poco:note", bbcode($owner["about"], false, false, 7));
if (trim($owner["location"]) != "") {
$element = $doc->createElement("poco:address");
xml::add_element($doc, $element, "poco:formatted", $owner["location"]);
$author->appendChild($element);
}
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 (count($profile)) {
xml::add_element($doc, $author, "followers", "", array("url" => System::baseUrl()."/viewcontacts/".$owner["nick"]));
xml::add_element($doc, $author, "statusnet:profile_info", "", array("local_id" => $owner["uid"]));
}
if ($profile["publish"]) {
xml::add_element($doc, $author, "mastodon:scope", "public");
}
return $author;
}
/**
* @TODO Picture attachments should look like this:
* <a href="https://status.pirati.ca/attachment/572819" title="https://status.pirati.ca/file/heluecht-20151202T222602-rd3u49p.gif"
* class="attachment thumbnail" id="attachment-572819" rel="nofollow external">https://status.pirati.ca/attachment/572819</a>
*
*/
/**
* @brief Returns the given activity if present - otherwise returns the "post" activity
*
* @param array $item Data of the item that is to be posted
*
* @return string activity
*/
private static function construct_verb($item) {
if ($item['verb'])
return $item['verb'];
return ACTIVITY_POST;
}
/**
* @brief Returns the given object type if present - otherwise returns the "note" object type
*
* @param array $item Data of the item that is to be posted
*
* @return string Object type
*/
private static function construct_objecttype($item) {
if (in_array($item['object-type'], array(ACTIVITY_OBJ_NOTE, ACTIVITY_OBJ_COMMENT)))
return $item['object-type'];
return ACTIVITY_OBJ_NOTE;
}
/**
* @brief Adds an entry element to the XML document
*
* @param object $doc XML document
* @param array $item Data of the item that is to be posted
* @param array $owner Contact data of the poster
* @param bool $toplevel
*
* @return object Entry element
*/
private static function entry($doc, $item, $owner, $toplevel = false) {
$repeated_guid = self::get_reshared_guid($item);
if ($repeated_guid != "")
$xml = self::reshare_entry($doc, $item, $owner, $repeated_guid, $toplevel);
if ($xml)
return $xml;
if ($item["verb"] == ACTIVITY_LIKE) {
return self::like_entry($doc, $item, $owner, $toplevel);
} elseif (in_array($item["verb"], array(ACTIVITY_FOLLOW, NAMESPACE_OSTATUS."/unfollow"))) {
return self::follow_entry($doc, $item, $owner, $toplevel);
} else {
return self::note_entry($doc, $item, $owner, $toplevel);
}
}
/**
* @brief Adds a source entry to the XML document
*
* @param object $doc XML document
* @param array $contact Array of the contact that is added
*
* @return object Source element
*/
private static function source_entry($doc, $contact) {
$source = $doc->createElement("source");
xml::add_element($doc, $source, "id", $contact["poll"]);
xml::add_element($doc, $source, "title", $contact["name"]);
xml::add_element($doc, $source, "link", "", array("rel" => "alternate",
"type" => "text/html",
"href" => $contact["alias"]));
xml::add_element($doc, $source, "link", "", array("rel" => "self",
"type" => "application/atom+xml",
"href" => $contact["poll"]));
xml::add_element($doc, $source, "icon", $contact["photo"]);
xml::add_element($doc, $source, "updated", datetime_convert("UTC","UTC",$contact["success_update"]."+00:00",ATOM_TIME));
return $source;
}
/**
* @brief Fetches contact data from the contact or the gcontact table
*
* @param string $url URL of the contact
* @param array $owner Contact data of the poster
*
* @return array Contact array
*/
private static function contact_entry($url, $owner) {
$r = q("SELECT * FROM `contact` WHERE `nurl` = '%s' AND `uid` IN (0, %d) ORDER BY `uid` DESC LIMIT 1",
dbesc(normalise_link($url)), intval($owner["uid"]));
if (dbm::is_result($r)) {
$contact = $r[0];
$contact["uid"] = -1;
}
if (!dbm::is_result($r)) {
$r = q("SELECT * FROM `gcontact` WHERE `nurl` = '%s' LIMIT 1",
dbesc(normalise_link($url)));
if (dbm::is_result($r)) {
$contact = $r[0];
$contact["uid"] = -1;
$contact["success_update"] = $contact["updated"];
}
}
if (!dbm::is_result($r))
$contact = owner;
if (!isset($contact["poll"])) {
$data = probe_url($url);
$contact["poll"] = $data["poll"];
if (!$contact["alias"])
$contact["alias"] = $data["alias"];
}
if (!isset($contact["alias"]))
$contact["alias"] = $contact["url"];
return $contact;
}
/**
* @brief Adds an entry element with reshared content
*
* @param object $doc XML document
* @param array $item Data of the item that is to be posted
* @param array $owner Contact data of the poster
* @param $repeated_guid
* @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
*
* @return object Entry element
*/
private static function reshare_entry($doc, $item, $owner, $repeated_guid, $toplevel) {
if (($item["id"] != $item["parent"]) && (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
}
$title = self::entry_header($doc, $entry, $owner, $toplevel);
$r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' AND NOT `private` AND `network` IN ('%s', '%s', '%s') LIMIT 1",
intval($owner["uid"]), dbesc($repeated_guid),
dbesc(NETWORK_DFRN), dbesc(NETWORK_DIASPORA), dbesc(NETWORK_OSTATUS));
if (dbm::is_result($r)) {
$repeated_item = $r[0];
} else {
return false;
}
$contact = self::contact_entry($repeated_item['author-link'], $owner);
$parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
$title = $owner["nick"]." repeated a notice by ".$contact["nick"];
self::entry_content($doc, $entry, $item, $owner, $title, ACTIVITY_SHARE, false);
$as_object = $doc->createElement("activity:object");
xml::add_element($doc, $as_object, "activity:object-type", NAMESPACE_ACTIVITY_SCHEMA."activity");
self::entry_content($doc, $as_object, $repeated_item, $owner, "", "", false);
$author = self::add_author($doc, $contact);
$as_object->appendChild($author);
$as_object2 = $doc->createElement("activity:object");
xml::add_element($doc, $as_object2, "activity:object-type", self::construct_objecttype($repeated_item));
$title = sprintf("New comment by %s", $contact["nick"]);
self::entry_content($doc, $as_object2, $repeated_item, $owner, $title);
$as_object->appendChild($as_object2);
self::entry_footer($doc, $as_object, $item, $owner, false);
$source = self::source_entry($doc, $contact);
$as_object->appendChild($source);
$entry->appendChild($as_object);
self::entry_footer($doc, $entry, $item, $owner);
return $entry;
}
/**
* @brief Adds an entry element with a "like"
*
* @param object $doc XML document
* @param array $item Data of the item that is to be posted
* @param array $owner Contact data of the poster
* @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
*
* @return object Entry element with "like"
*/
private static function like_entry($doc, $item, $owner, $toplevel) {
if (($item["id"] != $item["parent"]) && (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
}
$title = self::entry_header($doc, $entry, $owner, $toplevel);
$verb = NAMESPACE_ACTIVITY_SCHEMA."favorite";
self::entry_content($doc, $entry, $item, $owner, "Favorite", $verb, false);
$as_object = $doc->createElement("activity:object");
$parent = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d",
dbesc($item["thr-parent"]), intval($item["uid"]));
$parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
xml::add_element($doc, $as_object, "activity:object-type", self::construct_objecttype($parent[0]));
self::entry_content($doc, $as_object, $parent[0], $owner, "New entry");
$entry->appendChild($as_object);
self::entry_footer($doc, $entry, $item, $owner);
return $entry;
}
/**
* @brief Adds the person object element to the XML document
*
* @param object $doc XML document
* @param array $owner Contact data of the poster
* @param array $contact Contact data of the target
*
* @return object author element
*/
private static function add_person_object($doc, $owner, $contact) {
$object = $doc->createElement("activity:object");
xml::add_element($doc, $object, "activity:object-type", ACTIVITY_OBJ_PERSON);
if ($contact['network'] == NETWORK_PHANTOM) {
xml::add_element($doc, $object, "id", $contact['url']);
return $object;
}
xml::add_element($doc, $object, "id", $contact["alias"]);
xml::add_element($doc, $object, "title", $contact["nick"]);
$attributes = array("rel" => "alternate", "type" => "text/html", "href" => $contact["url"]);
xml::add_element($doc, $object, "link", "", $attributes);
$attributes = array(
"rel" => "avatar",
"type" => "image/jpeg", // To-Do?
"media:width" => 175,
"media:height" => 175,
"href" => $contact["photo"]);
xml::add_element($doc, $object, "link", "", $attributes);
xml::add_element($doc, $object, "poco:preferredUsername", $contact["nick"]);
xml::add_element($doc, $object, "poco:displayName", $contact["name"]);
if (trim($contact["location"]) != "") {
$element = $doc->createElement("poco:address");
xml::add_element($doc, $element, "poco:formatted", $contact["location"]);
$object->appendChild($element);
}
return $object;
}
/**
* @brief Adds a follow/unfollow entry element
*
* @param object $doc XML document
* @param array $item Data of the follow/unfollow message
* @param array $owner Contact data of the poster
* @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
*
* @return object Entry element
*/
private static function follow_entry($doc, $item, $owner, $toplevel) {
$item["id"] = $item["parent"] = 0;
$item["created"] = $item["edited"] = date("c");
$item["private"] = true;
$contact = Probe::uri($item['follow']);
if ($contact['alias'] == '') {
$contact['alias'] = $contact["url"];
} else {
$item['follow'] = $contact['alias'];
}
$r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `nurl` = '%s'",
intval($owner['uid']), dbesc(normalise_link($contact["url"])));
if (dbm::is_result($r)) {
$connect_id = $r[0]['id'];
} else {
$connect_id = 0;
}
if ($item['verb'] == ACTIVITY_FOLLOW) {
$message = t('%s is now following %s.');
$title = t('following');
$action = "subscription";
} else {
$message = t('%s stopped following %s.');
$title = t('stopped following');
$action = "unfollow";
}
$item["uri"] = $item['parent-uri'] = $item['thr-parent'] =
'tag:'.get_app()->get_hostname().
','.date('Y-m-d').':'.$action.':'.$owner['uid'].
':person:'.$connect_id.':'.$item['created'];
$item["body"] = sprintf($message, $owner["nick"], $contact["nick"]);
self::entry_header($doc, $entry, $owner, $toplevel);
self::entry_content($doc, $entry, $item, $owner, $title);
$object = self::add_person_object($doc, $owner, $contact);
$entry->appendChild($object);
self::entry_footer($doc, $entry, $item, $owner);
return $entry;
}
/**
* @brief Adds a regular entry element
*
* @param object $doc XML document
* @param array $item Data of the item that is to be posted
* @param array $owner Contact data of the poster
* @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
*
* @return object Entry element
*/
private static function note_entry($doc, $item, $owner, $toplevel) {
if (($item["id"] != $item["parent"]) && (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
}
$title = self::entry_header($doc, $entry, $owner, $toplevel);
xml::add_element($doc, $entry, "activity:object-type", ACTIVITY_OBJ_NOTE);
self::entry_content($doc, $entry, $item, $owner, $title);
self::entry_footer($doc, $entry, $item, $owner);
return $entry;
}
/**
* @brief Adds a header element to the XML document
*
* @param object $doc XML document
* @param object $entry The entry element where the elements are added
* @param array $owner Contact data of the poster
* @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
*
* @return string The title for the element
*/
private static function entry_header($doc, &$entry, $owner, $toplevel) {
/// @todo Check if this title stuff is really needed (I guess not)
if (!$toplevel) {
$entry = $doc->createElement("entry");
$title = sprintf("New note by %s", $owner["nick"]);
} else {
$entry = $doc->createElementNS(NAMESPACE_ATOM1, "entry");
$entry->setAttribute("xmlns:thr", NAMESPACE_THREAD);
$entry->setAttribute("xmlns:georss", NAMESPACE_GEORSS);
$entry->setAttribute("xmlns:activity", NAMESPACE_ACTIVITY);
$entry->setAttribute("xmlns:media", NAMESPACE_MEDIA);
$entry->setAttribute("xmlns:poco", NAMESPACE_POCO);
$entry->setAttribute("xmlns:ostatus", NAMESPACE_OSTATUS);
$entry->setAttribute("xmlns:statusnet", NAMESPACE_STATUSNET);
$entry->setAttribute("xmlns:mastodon", NAMESPACE_MASTODON);
$author = self::add_author($doc, $owner);
$entry->appendChild($author);
$title = sprintf("New comment by %s", $owner["nick"]);
}
return $title;
}
/**
* @brief Adds elements to the XML document
*
* @param object $doc XML document
* @param object $entry Entry element where the content is added
* @param array $item Data of the item that is to be posted
* @param array $owner Contact data of the poster
* @param string $title Title for the post
* @param string $verb The activity verb
* @param bool $complete Add the "status_net" element?
*/
private static function entry_content($doc, $entry, $item, $owner, $title, $verb = "", $complete = true) {
if ($verb == "")
$verb = self::construct_verb($item);
xml::add_element($doc, $entry, "id", $item["uri"]);
xml::add_element($doc, $entry, "title", $title);
$body = self::format_picture_post($item['body']);
if ($item['title'] != "")
$body = "[b]".$item['title']."[/b]\n\n".$body;
$body = bbcode($body, false, false, 7);
xml::add_element($doc, $entry, "content", $body, array("type" => "html"));
xml::add_element($doc, $entry, "link", "", array("rel" => "alternate", "type" => "text/html",
"href" => System::baseUrl()."/display/".$item["guid"]));
if ($complete && ($item["id"] > 0))
xml::add_element($doc, $entry, "status_net", "", array("notice_id" => $item["id"]));
xml::add_element($doc, $entry, "activity:verb", $verb);
xml::add_element($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));
}
/**
* @brief Adds the elements at the foot of an entry to the XML document
*
* @param object $doc XML document
* @param object $entry The entry element where the elements are added
* @param array $item Data of the item that is to be posted
* @param array $owner Contact data of the poster
* @param $complete
*/
private static function entry_footer($doc, $entry, $item, $owner, $complete = true) {
$mentioned = array();
if (($item['parent'] != $item['id']) || ($item['parent-uri'] !== $item['uri']) || (($item['thr-parent'] !== '') && ($item['thr-parent'] !== $item['uri']))) {
$parent = q("SELECT `guid`, `author-link`, `owner-link` FROM `item` WHERE `id` = %d", intval($item["parent"]));
$parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
$thrparent = q("SELECT `guid`, `author-link`, `owner-link`, `plink` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
intval($owner["uid"]),
dbesc($parent_item));
if ($thrparent) {
$mentioned[$thrparent[0]["author-link"]] = $thrparent[0]["author-link"];
$mentioned[$thrparent[0]["owner-link"]] = $thrparent[0]["owner-link"];
$parent_plink = $thrparent[0]["plink"];
} else {
$mentioned[$parent[0]["author-link"]] = $parent[0]["author-link"];
$mentioned[$parent[0]["owner-link"]] = $parent[0]["owner-link"];
$parent_plink = System::baseUrl()."/display/".$parent[0]["guid"];
}
$attributes = array(
"ref" => $parent_item,
"href" => $parent_plink);
xml::add_element($doc, $entry, "thr:in-reply-to", "", $attributes);
$attributes = array(
"rel" => "related",
"href" => $parent_plink);
xml::add_element($doc, $entry, "link", "", $attributes);
}
if (intval($item["parent"]) > 0) {
$conversation_href = System::baseUrl()."/display/".$owner["nick"]."/".$item["parent"];
$conversation_uri = $conversation_href;
if (isset($parent_item)) {
$r = dba::fetch_first("SELECT `conversation-uri`, `conversation-href` FROM `conversation` WHERE `item-uri` = ?", $parent_item);
if (dbm::is_result($r)) {
if ($r['conversation-uri'] != '') {
$conversation_uri = $r['conversation-uri'];
}
if ($r['conversation-href'] != '') {
$conversation_href = $r['conversation-href'];
}
}
}
xml::add_element($doc, $entry, "link", "", array("rel" => "ostatus:conversation", "href" => $conversation_href));
$attributes = array(
"href" => $conversation_href,
"local_id" => $item["parent"],
"ref" => $conversation_uri);
xml::add_element($doc, $entry, "ostatus:conversation", $conversation_uri, $attributes);
}
$tags = item_getfeedtags($item);
if (count($tags))
foreach ($tags as $t)
if ($t[0] == "@")
$mentioned[$t[1]] = $t[1];
// Make sure that mentions are accepted (GNU Social has problems with mixing HTTP and HTTPS)
$newmentions = array();
foreach ($mentioned AS $mention) {
$newmentions[str_replace("http://", "https://", $mention)] = str_replace("http://", "https://", $mention);
$newmentions[str_replace("https://", "http://", $mention)] = str_replace("https://", "http://", $mention);
}
$mentioned = $newmentions;
foreach ($mentioned AS $mention) {
$r = q("SELECT `forum`, `prv` FROM `contact` WHERE `uid` = %d AND `nurl` = '%s'",
intval($owner["uid"]),
dbesc(normalise_link($mention)));
if ($r[0]["forum"] || $r[0]["prv"])
xml::add_element($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" => $mention));
}
if (!$item["private"]) {
xml::add_element($doc, $entry, "link", "", array("rel" => "ostatus:attention",
"href" => "http://activityschema.org/collection/public"));
xml::add_element($doc, $entry, "link", "", array("rel" => "mentioned",
"ostatus:object-type" => "http://activitystrea.ms/schema/1.0/collection",
"href" => "http://activityschema.org/collection/public"));
xml::add_element($doc, $entry, "mastodon:scope", "public");
}
if (count($tags))
foreach ($tags as $t)
if ($t[0] != "@")
xml::add_element($doc, $entry, "category", "", array("term" => $t[2]));
self::get_attachment($doc, $entry, $item);
if ($complete && ($item["id"] > 0)) {
$app = $item["app"];
if ($app == "")
$app = "web";
$attributes = array("local_id" => $item["id"], "source" => $app);
if (isset($parent["id"]))
$attributes["repeat_of"] = $parent["id"];
if ($item["coord"] != "")
xml::add_element($doc, $entry, "georss:point", $item["coord"]);
xml::add_element($doc, $entry, "statusnet:notice_info", "", $attributes);
}
}
/**
* @brief Creates the XML feed for a given nickname
*
* @param App $a The application class
* @param string $owner_nick Nickname of the feed owner
* @param string $last_update Date of the last update
* @param integer $max_items Number of maximum items to fetch
*
* @return string XML feed
*/
public static function feed(App $a, $owner_nick, &$last_update, $max_items = 300) {
$stamp = microtime(true);
$cachekey = "ostatus:feed:".$owner_nick.":".$last_update;
$previous_created = $last_update;
$result = Cache::get($cachekey);
if (!is_null($result)) {
logger('Feed duration: '.number_format(microtime(true) - $stamp, 3).' - '.$owner_nick.' - '.$previous_created.' (cached)', LOGGER_DEBUG);
$last_update = $result['last_update'];
return $result['feed'];
}
$r = q("SELECT `contact`.*, `user`.`nickname`, `user`.`timezone`, `user`.`page-flags`
FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
WHERE `contact`.`self` AND `user`.`nickname` = '%s' LIMIT 1",
dbesc($owner_nick));
if (!dbm::is_result($r)) {
return;
}
$owner = $r[0];
if (!strlen($last_update)) {
$last_update = 'now -30 days';
}
$check_date = datetime_convert('UTC','UTC',$last_update,'Y-m-d H:i:s');
$authorid = get_contact($owner["url"], 0);
$items = q("SELECT `item`.*, `item`.`id` AS `item_id` FROM `item` USE INDEX (`uid_contactid_created`)
STRAIGHT_JOIN `thread` ON `thread`.`iid` = `item`.`parent`
WHERE `item`.`uid` = %d AND `item`.`contact-id` = %d AND
`item`.`author-id` = %d AND `item`.`created` > '%s' AND
NOT `item`.`deleted` AND NOT `item`.`private` AND
`thread`.`network` IN ('%s', '%s')
ORDER BY `item`.`created` DESC LIMIT %d",
intval($owner["uid"]), intval($owner["id"]),
intval($authorid), dbesc($check_date),
dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN), intval($max_items));
$doc = new DOMDocument('1.0', 'utf-8');
$doc->formatOutput = true;
$root = self::add_header($doc, $owner);
foreach ($items AS $item) {
if (Config::get('system', 'ostatus_debug')) {
$item['body'] .= '🍼';
}
$entry = self::entry($doc, $item, $owner);
$root->appendChild($entry);
if ($last_update < $item['created']) {
$last_update = $item['created'];
}
}
$feeddata = trim($doc->saveXML());
$msg = array('feed' => $feeddata, 'last_update' => $last_update);
Cache::set($cachekey, $msg, CACHE_QUARTER_HOUR);
logger('Feed duration: '.number_format(microtime(true) - $stamp, 3).' - '.$owner_nick.' - '.$previous_created, LOGGER_DEBUG);
return $feeddata;
}
/**
* @brief Creates the XML for a salmon message
*
* @param array $item Data of the item that is to be posted
* @param array $owner Contact data of the poster
*
* @return string XML for the salmon
*/
public static function salmon($item,$owner) {
$doc = new DOMDocument('1.0', 'utf-8');
$doc->formatOutput = true;
if (Config::get('system', 'ostatus_debug')) {
$item['body'] .= '🐟';
}
$entry = self::entry($doc, $item, $owner, true);
$doc->appendChild($entry);
return trim($doc->saveXML());
}
}
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