friendica/src/Protocol/OStatus.php

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<?php
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/**
* @file src/Protocol/OStatus.php
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*/
namespace Friendica\Protocol;
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use Friendica\Content\Text\BBCode;
use Friendica\Content\Text\HTML;
use Friendica\Core\Cache;
use Friendica\Core\Config;
use Friendica\Core\L10n;
use Friendica\Core\System;
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use Friendica\Database\DBM;
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use Friendica\Model\Contact;
use Friendica\Model\Conversation;
use Friendica\Model\GContact;
use Friendica\Model\Item;
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use Friendica\Network\Probe;
use Friendica\Object\Image;
use Friendica\Util\DateTimeFormat;
use Friendica\Util\Lock;
use Friendica\Util\Network;
use Friendica\Util\XML;
use dba;
use DOMDocument;
use DOMXPath;
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require_once 'include/dba.php';
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require_once 'include/items.php';
require_once 'mod/share.php';
require_once 'include/enotify.php';
require_once 'include/api.php';
require_once 'mod/proxy.php';
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/**
* @brief This class contain functions for the OStatus protocol
*/
class OStatus
{
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private static $itemlist;
private static $conv_list = [];
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/**
* @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 $onlyfetch Only fetch the header without updating the contact entries
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*
* @return array Array of author related entries for the item
*/
private static function fetchAuthor($xpath, $context, $importer, &$contact, $onlyfetch)
{
$author = [];
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$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 $attributes) {
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if (($attributes->name == "href") && ($attributes->textContent != "")) {
$author["author-link"] = $attributes->textContent;
}
}
}
$author["contact-id"] = $contact["id"];
$contact = null;
if ($aliaslink != '') {
$condition = ["`uid` = ? AND `alias` = ? AND `network` != ? AND `rel` IN (?, ?)",
$importer["uid"], $aliaslink, NETWORK_STATUSNET,
CONTACT_IS_SHARING, CONTACT_IS_FRIEND];
$contact = dba::selectFirst('contact', [], $condition);
}
if (!DBM::is_result($contact) && $author["author-link"] != '') {
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if ($aliaslink == "") {
$aliaslink = $author["author-link"];
}
$condition = ["`uid` = ? AND `nurl` IN (?, ?) AND `network` != ? AND `rel` IN (?, ?)",
$importer["uid"], normalise_link($author["author-link"]), normalise_link($aliaslink),
NETWORK_STATUSNET, CONTACT_IS_SHARING, CONTACT_IS_FRIEND];
$contact = dba::selectFirst('contact', [], $condition);
}
if (!DBM::is_result($contact) && ($addr != '')) {
$condition = ["`uid` = ? AND `addr` = ? AND `network` != ? AND `rel` IN (?, ?)",
$importer["uid"], $addr, NETWORK_STATUSNET,
CONTACT_IS_SHARING, CONTACT_IS_FRIEND];
$contact = dba::selectFirst('contact', [], $condition);
}
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if (DBM::is_result($contact)) {
if ($contact['blocked']) {
$contact['id'] = -1;
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}
$author["contact-id"] = $contact["id"];
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}
$avatarlist = [];
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$avatars = $xpath->query("atom:author/atom:link[@rel='avatar']", $context);
foreach ($avatars as $avatar) {
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$href = "";
$width = 0;
foreach ($avatar->attributes as $attributes) {
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if ($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"] = $author["author-avatar"];
// Only update the contacts if it is an OStatus contact
if (DBM::is_result($contact) && ($contact['id'] > 0) && !$onlyfetch && ($contact["network"] == NETWORK_OSTATUS)) {
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// Update contact data
$current = $contact;
unset($current['name-date']);
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// 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']);
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$value = $xpath->evaluate('atom:author/atom:uri/text()', $context)->item(0)->nodeValue;
if ($value != "") {
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$contact["alias"] = $value;
}
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$value = $xpath->evaluate('atom:author/poco:displayName/text()', $context)->item(0)->nodeValue;
if ($value != "") {
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$contact["name"] = $value;
}
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$value = $xpath->evaluate('atom:author/poco:preferredUsername/text()', $context)->item(0)->nodeValue;
if ($value != "") {
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$contact["nick"] = $value;
}
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$value = $xpath->evaluate('atom:author/poco:note/text()', $context)->item(0)->nodeValue;
if ($value != "") {
$contact["about"] = HTML::toBBCode($value);
}
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$value = $xpath->evaluate('atom:author/poco:address/poco:formatted/text()', $context)->item(0)->nodeValue;
if ($value != "") {
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$contact["location"] = $value;
}
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$contact['name-date'] = DateTimeFormat::utcNow();
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dba::update('contact', $contact, ['id' => $contact["id"]], $current);
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if (!empty($author["author-avatar"]) && ($author["author-avatar"] != $current['avatar'])) {
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logger("Update profile picture for contact ".$contact["id"], LOGGER_DEBUG);
Contact::updateAvatar($author["author-avatar"], $importer["uid"], $contact["id"]);
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}
// Ensure that we are having this contact (with uid=0)
$cid = Contact::getIdForURL($aliaslink, 0, true);
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if ($cid) {
$fields = ['url', 'nurl', 'name', 'nick', 'alias', 'about', 'location'];
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$old_contact = dba::selectFirst('contact', $fields, ['id' => $cid]);
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// Update it with the current values
$fields = ['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' => DateTimeFormat::utcNow(), 'last-update' => DateTimeFormat::utcNow()];
dba::update('contact', $fields, ['id' => $cid], $old_contact);
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// Update the avatar
Contact::updateAvatar($author["author-avatar"], 0, $cid);
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}
$contact["generation"] = 2;
$contact["hide"] = false; // OStatus contacts are never hidden
$contact["photo"] = $author["author-avatar"];
$gcid = GContact::update($contact);
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GContact::link($gcid, $contact["uid"], $contact["id"]);
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}
return $author;
}
/**
* @brief Fetches author data from a given XML string
*
* @param string $xml The XML
* @param array $importer user record of the importing user
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*
* @return array Array of author related entries for the item
*/
public static function salmonAuthor($xml, $importer)
{
if ($xml == "") {
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return;
}
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$doc = new DOMDocument();
@$doc->loadXML($xml);
$xpath = new DOMXPath($doc);
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$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);
$contact = ["id" => 0];
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// Fetch the first author
$authordata = $xpath->query('//author')->item(0);
$author = self::fetchAuthor($xpath, $authordata, $importer, $contact, true);
return $author;
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}
/**
* @brief Read attributes from element
*
* @param object $element Element object
*
* @return array attributes
*/
private static function readAttributes($element)
{
$attribute = [];
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foreach ($element->attributes as $attributes) {
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$attribute[$attributes->name] = $attributes->textContent;
}
return $attribute;
}
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/**
* @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 contact
* @param string $hub Called by reference, returns the fetched hub data
* @return void
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*/
public static function import($xml, $importer, &$contact, &$hub)
{
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self::process($xml, $importer, $contact, $hub);
}
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/**
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* @brief Internal feed processing
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*
* @param string $xml The XML
* @param array $importer user record of the importing user
* @param array $contact contact
* @param string $hub Called by reference, returns the fetched hub data
* @param boolean $stored Is the post fresh imported or from the database?
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* @param boolean $initialize Is it the leading post so that data has to be initialized?
*
* @return boolean Could the XML be processed?
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*/
private static function process($xml, $importer, &$contact, &$hub, $stored = false, $initialize = true)
{
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if ($initialize) {
self::$itemlist = [];
self::$conv_list = [];
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}
logger("Import OStatus message", LOGGER_DEBUG);
if ($xml == "") {
return false;
}
$doc = new DOMDocument();
@$doc->loadXML($xml);
$xpath = new DOMXPath($doc);
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$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);
$xpath->registerNamespace('statusnet', NAMESPACE_STATUSNET);
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$hub = "";
$hub_attributes = $xpath->query("/atom:feed/atom:link[@rel='hub']")->item(0)->attributes;
if (is_object($hub_attributes)) {
foreach ($hub_attributes as $hub_attribute) {
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if ($hub_attribute->name == "href") {
$hub = $hub_attribute->textContent;
logger("Found hub ".$hub, LOGGER_DEBUG);
}
}
}
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$header = [];
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$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 = $xpath->query('/atom:entry');
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}
if ($entries->length == 1) {
// We reformat the XML to make it better readable
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$doc2 = new DOMDocument();
$doc2->loadXML($xml);
$doc2->preserveWhiteSpace = false;
$doc2->formatOutput = true;
$xml2 = $doc2->saveXML();
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$header["protocol"] = PROTOCOL_OSTATUS_SALMON;
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$header["source"] = $xml2;
} elseif (!$initialize) {
return false;
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}
// Fetch the first author
$authordata = $xpath->query('//author')->item(0);
$author = self::fetchAuthor($xpath, $authordata, $importer, $contact, $stored);
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$entry = $xpath->query('/atom:entry');
// Reverse the order of the entries
$entrylist = [];
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foreach ($entries as $entry) {
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$entrylist[] = $entry;
}
foreach (array_reverse($entrylist) as $entry) {
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// fetch the author
$authorelement = $xpath->query('/atom:entry/atom:author', $entry);
if ($authorelement->length == 0) {
$authorelement = $xpath->query('atom:author', $entry);
}
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if ($authorelement->length > 0) {
$author = self::fetchAuthor($xpath, $entry, $importer, $contact, $stored);
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}
$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()', $entry)->item(0)->nodeValue;
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$item["verb"] = $xpath->query('activity:verb/text()', $entry)->item(0)->nodeValue;
// Delete a message
if (in_array($item["verb"], ['qvitter-delete-notice', ACTIVITY_DELETE, 'delete'])) {
self::deleteNotice($item);
continue;
}
if (in_array($item["verb"], [NAMESPACE_OSTATUS."/unfavorite", ACTIVITY_UNFAVORITE])) {
// Ignore "Unfavorite" message
logger("Ignore unfavorite message ".print_r($item, true), LOGGER_DEBUG);
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continue;
}
// Deletions come with the same uri, so we check for duplicates after processing deletions
if (dba::exists('item', ['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 '.$importer["uid"].'.', LOGGER_DEBUG);
}
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if ($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($item, true), LOGGER_DEBUG);
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continue;
}
if ($item["verb"] == ACTIVITY_FOLLOW) {
Contact::addRelationship($importer, $contact, $item, $nickname);
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continue;
}
if ($item["verb"] == NAMESPACE_OSTATUS."/unfollow") {
Contact::removeFollower($importer, $contact, $item, $dummy);
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continue;
}
if ($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"], [ACTIVITY_POST, ACTIVITY_LIKE, ACTIVITY_SHARE])) {
logger("Unhandled verb ".$item["verb"]." ".print_r($item, true), LOGGER_DEBUG);
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}
self::processPost($xpath, $entry, $item, $importer);
if ($initialize && (count(self::$itemlist) > 0)) {
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if (self::$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) {
logger("Item with uri ".self::$itemlist[0]['uri']." will be imported due to the system settings.", LOGGER_DEBUG);
}
} else {
logger("Item with uri ".self::$itemlist[0]['uri']." belongs to a contact (".self::$itemlist[0]['contact-id']."). It will be imported.", LOGGER_DEBUG);
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}
if ($valid) {
// Never post a thread when the only interaction by our contact was a like
$valid = false;
$verbs = [ACTIVITY_POST, ACTIVITY_SHARE];
foreach (self::$itemlist as $item) {
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if (!empty($item['contact-id']) && in_array($item['verb'], $verbs)) {
$valid = true;
}
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}
if ($valid) {
logger("Item with uri ".self::$itemlist[0]['uri']." will be imported since the thread contains posts or shares.", LOGGER_DEBUG);
}
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}
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} else {
// But we will only import complete threads
$valid = dba::exists('item', ['uid' => $importer["uid"], 'uri' => self::$itemlist[0]['parent-uri']]);
if ($valid) {
logger("Item with uri ".self::$itemlist[0]["uri"]." belongs to parent ".self::$itemlist[0]['parent-uri']." of user ".$importer["uid"].". It will be imported.", LOGGER_DEBUG);
}
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}
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', ['uid' => $importer["uid"], 'uri' => $item["uri"]]);
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if ($found) {
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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);
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} else {
// We are having duplicated entries. Hopefully this solves it.
if (Lock::set('ostatus_process_item_insert')) {
$ret = Item::insert($item);
Lock::remove('ostatus_process_item_insert');
logger("Item with uri ".$item["uri"]." for user ".$importer["uid"].' stored. Return value: '.$ret);
} else {
$ret = Item::insert($item);
logger("We couldn't lock - but tried to store the item anyway. Return value is ".$ret);
}
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}
}
}
self::$itemlist = [];
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}
logger('Processing done for post with URI '.$item["uri"].' for user '.$importer["uid"].'.', LOGGER_DEBUG);
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}
return true;
}
/**
* @param object $item item
* @return void
*/
private static function deleteNotice($item)
{
$condition = ['uid' => $item['uid'], 'author-link' => $item['author-link'], 'uri' => $item['uri']];
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$deleted = dba::selectFirst('item', ['id', 'parent-uri'], $condition);
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if (!DBM::is_result($deleted)) {
logger('Item from '.$item['author-link'].' with uri '.$item['uri'].' for user '.$item['uid']." wasn't found. We don't delete it. ");
return;
}
Item::deleteById($deleted["id"]);
logger('Deleted item with uri '.$item['uri'].' for user '.$item['uid']);
}
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/**
* @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 $importer user record of the importing user
* @return void
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*/
private static function processPost($xpath, $entry, &$item, $importer)
{
$item["body"] = HTML::toBBCode($xpath->query('atom:content/text()', $entry)->item(0)->nodeValue);
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$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 $attributes) {
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if ($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 $attributes) {
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if ($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 $attributes) {
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if ($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 $attributes) {
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if ($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]')) {
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$item["body"] = add_page_info_to_body($item["body"]);
}
// Mastodon Content Warning
if (($item["verb"] == ACTIVITY_POST) && $xpath->evaluate('boolean(atom:summary)', $entry)) {
$clear_text = $xpath->query('atom:summary/text()', $entry)->item(0)->nodeValue;
if (!empty($clear_text)) {
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$item['content-warning'] = HTML::toBBCode($clear_text);
}
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}
if (($self != '') && empty($item['protocol'])) {
self::fetchSelf($self, $item);
}
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if (!empty($item["conversation-href"])) {
self::fetchConversation($item['conversation-href'], $item['conversation-uri']);
}
if (isset($item["parent-uri"])) {
if (!dba::exists('item', ['uid' => $importer["uid"], 'uri' => $item['parent-uri']])) {
if ($related != '') {
self::fetchRelated($related, $item["parent-uri"], $importer);
}
} else {
logger('Reply with URI '.$item["uri"].' already existed for user '.$importer["uid"].'.', LOGGER_DEBUG);
}
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$item["type"] = 'remote-comment';
$item["gravity"] = GRAVITY_COMMENT;
} else {
$item["parent-uri"] = $item["uri"];
}
if (($item['author-link'] != '') && !empty($item['protocol'])) {
$item = Conversation::insert($item);
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}
self::$itemlist[] = $item;
}
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/**
* @brief Fetch the conversation for posts
*
* @param string $conversation The link to the conversation
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* @param string $conversation_uri The conversation in "uri" format
* @return void
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*/
private static function fetchConversation($conversation, $conversation_uri)
{
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// Ensure that we only store a conversation once in a process
if (isset(self::$conv_list[$conversation])) {
return;
}
self::$conv_list[$conversation] = true;
$conversation_data = Network::curl($conversation, false, $redirects, ['accept_content' => 'application/atom+xml, text/html']);
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if (!$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);
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$links = $xpath->query('//link');
if ($links) {
$file = '';
foreach ($links as $link) {
$attribute = self::readAttributes($link);
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if (($attribute['rel'] == 'alternate') && ($attribute['type'] == 'application/atom+xml')) {
$file = $attribute['href'];
}
}
if ($file != '') {
$conversation_atom = Network::curl($attribute['href']);
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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
* @param string $conversation conversation
* @param string $conversation_uri conversation uri
* @return void
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*/
private static function storeConversation($xml, $conversation = '', $conversation_uri = '')
{
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$doc = new DOMDocument();
@$doc->loadXML($xml);
$xpath = new DOMXPath($doc);
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$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 $entry) {
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$doc2 = new DOMDocument();
$doc2->preserveWhiteSpace = false;
$doc2->formatOutput = true;
$conv_data = [];
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$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 $attributes) {
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if ($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 $attributes) {
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if ($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 = ['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', ['item-uri' => $conv_data['uri']]);
}
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logger('Store conversation data for uri '.$conv_data['uri'], LOGGER_DEBUG);
Conversation::insert($conv_data);
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}
}
/**
* @brief Fetch the own post so that it can be stored later
*
* 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
* @param array $item The item array
* @return void
*/
private static function fetchSelf($self, &$item)
{
$condition = ['`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;
}
$self_data = Network::curl($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);
}
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/**
* @brief Fetch related posts and processes them
*
* @param string $related The link to the related item
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* @param string $related_uri The related item in "uri" format
* @param array $importer user record of the importing user
* @return void
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*/
private static function fetchRelated($related, $related_uri, $importer)
{
$condition = ['`item-uri` = ? AND `protocol` IN (?, ?)', $related_uri, PROTOCOL_DFRN, PROTOCOL_OSTATUS_SALMON];
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$conversation = dba::selectFirst('conversation', ['source', 'protocol'], $condition);
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if (DBM::is_result($conversation)) {
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$stored = true;
$xml = $conversation['source'];
if (self::process($xml, $importer, $contact, $hub, $stored, false)) {
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logger('Got valid cached XML for URI '.$related_uri, LOGGER_DEBUG);
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return;
}
if ($conversation['protocol'] == PROTOCOL_OSTATUS_SALMON) {
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logger('Delete invalid cached XML for URI '.$related_uri, LOGGER_DEBUG);
dba::delete('conversation', ['item-uri' => $related_uri]);
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}
}
$stored = false;
$related_data = Network::curl($related, false, $redirects, ['accept_content' => 'application/atom+xml, text/html']);
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if (!$related_data['success']) {
return;
}
$xml = '';
if (stristr($related_data['header'], 'Content-Type: application/atom+xml')) {
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logger('Directly fetched XML for URI '.$related_uri, LOGGER_DEBUG);
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$xml = $related_data['body'];
}
if ($xml == '') {
$doc = new DOMDocument();
if (!@$doc->loadHTML($related_data['body'])) {
return;
}
$xpath = new DOMXPath($doc);
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$atom_file = '';
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$links = $xpath->query('//link');
if ($links) {
foreach ($links as $link) {
$attribute = self::readAttributes($link);
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if (($attribute['rel'] == 'alternate') && ($attribute['type'] == 'application/atom+xml')) {
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$atom_file = $attribute['href'];
}
}
if ($atom_file != '') {
$related_atom = Network::curl($atom_file);
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if ($related_atom['success']) {
logger('Fetched XML for URI '.$related_uri, LOGGER_DEBUG);
$xml = $related_atom['body'];
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}
}
}
}
// Workaround for older GNU Social servers
if (($xml == '') && strstr($related, '/notice/')) {
$related_atom = Network::curl(str_replace('/notice/', '/api/statuses/show/', $related).'.atom');
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if ($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 == '') {
$related_guess = OStatus::convertHref($related_uri);
$related_atom = Network::curl(str_replace('/notice/', '/api/statuses/show/', $related_guess).'.atom');
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if ($related_atom['success']) {
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logger('GNU Social workaround 2 to fetch XML for URI '.$related_uri, LOGGER_DEBUG);
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$xml = $related_atom['body'];
}
}
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// Finally we take the data that we fetched from "ostatus:conversation"
if ($xml == '') {
$condition = ['item-uri' => $related_uri, 'protocol' => PROTOCOL_SPLITTED_CONV];
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$conversation = dba::selectFirst('conversation', ['source'], $condition);
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if (DBM::is_result($conversation)) {
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$stored = true;
logger('Got cached XML from conversation for URI '.$related_uri, LOGGER_DEBUG);
$xml = $conversation['source'];
}
}
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if ($xml != '') {
self::process($xml, $importer, $contact, $hub, $stored, false);
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} else {
logger("XML couldn't be fetched for URI: ".$related_uri." - href: ".$related, LOGGER_DEBUG);
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}
return;
}
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/**
* @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 $importer user record of the importing user
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*
* @return array with data from links
*/
private static function processRepeatedItem($xpath, $entry, &$item, $importer)
{
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$activityobjects = $xpath->query('activity:object', $entry)->item(0);
if (!is_object($activityobjects)) {
return [];
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}
$link_data = [];
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$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;
$orig_author = self::fetchAuthor($xpath, $activityobjects, $importer, $dummy, false);
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$item["author-name"] = $orig_author["author-name"];
$item["author-link"] = $orig_author["author-link"];
$item["author-avatar"] = $orig_author["author-avatar"];
$item["body"] = HTML::toBBCode($orig_body);
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$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 $attributes) {
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if ($attributes->name == "ref") {
$item["parent-uri"] = $attributes->textContent;
}
}
}
return $link_data;
}
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/**
* @brief Processes links in the XML
*
* @param object $links The xml data that contain links
* @param array $item The item array
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*
* @return array with data from the links
*/
private static function processLinks($links, &$item)
{
$link_data = ['add_body' => '', 'self' => ''];
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foreach ($links as $link) {
$attribute = self::readAttributes($link);
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if (($attribute['rel'] != "") && ($attribute['href'] != "")) {
switch ($attribute['rel']) {
case "alternate":
$item["plink"] = $attribute['href'];
if (($item["object-type"] == ACTIVITY_OBJ_QUESTION)
|| ($item["object-type"] == ACTIVITY_OBJ_EVENT)
) {
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$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($attribute['type'], '/')));
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if ($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;
}
/**
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* @brief Create an url out of an uri
*
* @param string $href URI in the format "parameter1:parameter1:..."
*
* @return string URL in the format http(s)://....
*/
public static function convertHref($href)
{
$elements = explode(":", $href);
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if ((count($elements) <= 2) || ($elements[0] != "tag")) {
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return $href;
}
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$server = explode(",", $elements[1]);
$conversation = explode("=", $elements[2]);
if ((count($elements) == 4) && ($elements[2] == "post")) {
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return "http://".$server[0]."/notice/".$elements[3];
}
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if ((count($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;
}
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/**
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* @brief Checks if the current post is a reshare
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*
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* @param array $item The item array of thw post
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*
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* @return string The guid if the post is a reshare
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*/
private static function getResharedGuid($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;
}
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/**
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* @brief Cleans the body of a post if it contains picture links
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*
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* @param string $body The body
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*
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* @return string The cleaned body
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*/
private static function formatPicturePost($body)
{
$siteinfo = BBCode::getAttachedData($body);
if (($siteinfo["type"] == "photo")) {
if (isset($siteinfo["preview"])) {
$preview = $siteinfo["preview"];
} else {
$preview = $siteinfo["image"];
}
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// 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(["-0.jpg", "-0.png"], ["-2.jpg", "-2.png"], $preview);
$preview = str_replace(["-1.jpg", "-1.png"], ["-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;
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}
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/**
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* @brief Adds the header elements to the XML document
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*
* @param object $doc XML document
* @param array $owner Contact data of the poster
* @param string $filter The related feed filter (activity, posts or comments)
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*
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* @return object header root element
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*/
private static function addHeader($doc, $owner, $filter)
{
$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);
$root->setAttribute("xmlns:statusnet", NAMESPACE_STATUSNET);
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$root->setAttribute("xmlns:mastodon", NAMESPACE_MASTODON);
$title = '';
switch ($filter) {
case 'activity': $title = L10n::t('%s\'s timeline', $owner['name']); break;
case 'posts' : $title = L10n::t('%s\'s posts' , $owner['name']); break;
case 'comments': $title = L10n::t('%s\'s comments', $owner['name']); break;
}
$attributes = ["uri" => "https://friendi.ca", "version" => FRIENDICA_VERSION . "-" . DB_UPDATE_VERSION];
XML::addElement($doc, $root, "generator", FRIENDICA_PLATFORM, $attributes);
XML::addElement($doc, $root, "id", System::baseUrl() . "/profile/" . $owner["nick"]);
XML::addElement($doc, $root, "title", $title);
XML::addElement($doc, $root, "subtitle", sprintf("Updates from %s on %s", $owner["name"], $a->config["sitename"]));
XML::addElement($doc, $root, "logo", $owner["photo"]);
XML::addElement($doc, $root, "updated", DateTimeFormat::utcNow(DateTimeFormat::ATOM));
$author = self::addAuthor($doc, $owner);
$root->appendChild($author);
$attributes = ["href" => $owner["url"], "rel" => "alternate", "type" => "text/html"];
XML::addElement($doc, $root, "link", "", $attributes);
/// @TODO We have to find out what this is
/// $attributes = array("href" => System::baseUrl()."/sup",
/// "rel" => "http://api.friendfeed.com/2008/03#sup",
/// "type" => "application/json");
/// XML::addElement($doc, $root, "link", "", $attributes);
self::hublinks($doc, $root, $owner["nick"]);
$attributes = ["href" => System::baseUrl() . "/salmon/" . $owner["nick"], "rel" => "salmon"];
XML::addElement($doc, $root, "link", "", $attributes);
$attributes = ["href" => System::baseUrl() . "/salmon/" . $owner["nick"], "rel" => "http://salmon-protocol.org/ns/salmon-replies"];
XML::addElement($doc, $root, "link", "", $attributes);
$attributes = ["href" => System::baseUrl() . "/salmon/" . $owner["nick"], "rel" => "http://salmon-protocol.org/ns/salmon-mention"];
XML::addElement($doc, $root, "link", "", $attributes);
$attributes = ["href" => System::baseUrl() . "/api/statuses/user_timeline/" . $owner["nick"] . ".atom",
"rel" => "self", "type" => "application/atom+xml"];
XML::addElement($doc, $root, "link", "", $attributes);
if ($owner['account-type'] == ACCOUNT_TYPE_COMMUNITY) {
$condition = ['uid' => $owner['uid'], 'self' => false, 'pending' => false,
'archive' => false, 'hidden' => false, 'blocked' => false];
$members = dba::count('contact', $condition);
XML::addElement($doc, $root, "statusnet:group_info", "", ["member_count" => $members]);
}
return $root;
}
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/**
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* @brief Add the link to the push hubs to the XML document
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*
* @param object $doc XML document
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* @param object $root XML root element where the hub links are added
* @param object $nick nick
* @return void
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*/
public static function hublinks($doc, $root, $nick)
{
$h = System::baseUrl() . '/pubsubhubbub/'.$nick;
XML::addElement($doc, $root, "link", "", ["href" => $h, "rel" => "hub"]);
}
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/**
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* @brief Adds attachment data to the XML document
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*
* @param object $doc XML document
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* @param object $root XML root element where the hub links are added
* @param array $item Data of the item that is to be posted
* @return void
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*/
private static function getAttachment($doc, $root, $item)
{
$o = "";
$siteinfo = BBCode::getAttachedData($item["body"]);
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switch ($siteinfo["type"]) {
case 'photo':
$imgdata = Image::getInfoFromURL($siteinfo["image"]);
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if ($imgdata) {
$attributes = ["rel" => "enclosure",
"href" => $siteinfo["image"],
"type" => $imgdata["mime"],
"length" => intval($imgdata["size"])];
XML::addElement($doc, $root, "link", "", $attributes);
}
break;
case 'video':
$attributes = ["rel" => "enclosure",
"href" => $siteinfo["url"],
"type" => "text/html; charset=UTF-8",
"length" => "",
"title" => $siteinfo["title"]];
XML::addElement($doc, $root, "link", "", $attributes);
break;
default:
break;
}
if (!Config::get('system', 'ostatus_not_attach_preview') && ($siteinfo["type"] != "photo") && isset($siteinfo["image"])) {
$imgdata = Image::getInfoFromURL($siteinfo["image"]);
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if ($imgdata) {
$attributes = ["rel" => "enclosure",
"href" => $siteinfo["image"],
"type" => $imgdata["mime"],
"length" => intval($imgdata["size"])];
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XML::addElement($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 = ["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);
}
}
}
}
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/**
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* @brief Adds the author element to the XML document
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*
* @param object $doc XML document
* @param array $owner Contact data of the poster
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*
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* @return object author element
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*/
private static function addAuthor($doc, $owner, $show_profile = true)
{
$profile = dba::selectFirst('profile', ['homepage', 'publish'], ['uid' => $owner['uid'], 'is-default' => true]);
$author = $doc->createElement("author");
XML::addElement($doc, $author, "id", $owner["url"]);
if ($owner['account-type'] == ACCOUNT_TYPE_COMMUNITY) {
XML::addElement($doc, $author, "activity:object-type", ACTIVITY_OBJ_GROUP);
} else {
XML::addElement($doc, $author, "activity:object-type", ACTIVITY_OBJ_PERSON);
}
XML::addElement($doc, $author, "uri", $owner["url"]);
XML::addElement($doc, $author, "name", $owner["nick"]);
XML::addElement($doc, $author, "email", $owner["addr"]);
if ($show_profile) {
XML::addElement($doc, $author, "summary", BBCode::convert($owner["about"], false, 7));
}
$attributes = ["rel" => "alternate", "type" => "text/html", "href" => $owner["url"]];
XML::addElement($doc, $author, "link", "", $attributes);
$attributes = [
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"rel" => "avatar",
"type" => "image/jpeg", // To-Do?
"media:width" => 175,
"media:height" => 175,
"href" => $owner["photo"]];
XML::addElement($doc, $author, "link", "", $attributes);
if (isset($owner["thumb"])) {
$attributes = [
"rel" => "avatar",
"type" => "image/jpeg", // To-Do?
"media:width" => 80,
"media:height" => 80,
"href" => $owner["thumb"]];
XML::addElement($doc, $author, "link", "", $attributes);
}
XML::addElement($doc, $author, "poco:preferredUsername", $owner["nick"]);
XML::addElement($doc, $author, "poco:displayName", $owner["name"]);
if ($show_profile) {
XML::addElement($doc, $author, "poco:note", BBCode::convert($owner["about"], false, 7));
if (trim($owner["location"]) != "") {
$element = $doc->createElement("poco:address");
XML::addElement($doc, $element, "poco:formatted", $owner["location"]);
$author->appendChild($element);
}
}
if (DBM::is_result($profile) && !$show_profile) {
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);
}
XML::addElement($doc, $author, "followers", "", ["url" => System::baseUrl()."/viewcontacts/".$owner["nick"]]);
XML::addElement($doc, $author, "statusnet:profile_info", "", ["local_id" => $owner["uid"]]);
if ($profile["publish"]) {
XML::addElement($doc, $author, "mastodon:scope", "public");
}
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}
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>
*/
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/**
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* @brief Returns the given activity if present - otherwise returns the "post" activity
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*
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* @param array $item Data of the item that is to be posted
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*
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* @return string activity
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*/
private static function constructVerb($item)
{
if ($item['verb']) {
return $item['verb'];
}
return ACTIVITY_POST;
}
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/**
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* @brief Returns the given object type if present - otherwise returns the "note" object type
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*
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* @param array $item Data of the item that is to be posted
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*
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* @return string Object type
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*/
private static function constructObjecttype($item)
{
if (in_array($item['object-type'], [ACTIVITY_OBJ_NOTE, ACTIVITY_OBJ_COMMENT]))
return $item['object-type'];
return ACTIVITY_OBJ_NOTE;
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}
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/**
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* @brief Adds an entry element to the XML document
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*
* @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 $toplevel optional default false
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*
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* @return object Entry element
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*/
private static function entry($doc, $item, $owner, $toplevel = false)
{
$xml = null;
$repeated_guid = self::getResharedGuid($item);
if ($repeated_guid != "") {
$xml = self::reshareEntry($doc, $item, $owner, $repeated_guid, $toplevel);
}
if ($xml) {
return $xml;
}
if ($item["verb"] == ACTIVITY_LIKE) {
return self::likeEntry($doc, $item, $owner, $toplevel);
} elseif (in_array($item["verb"], [ACTIVITY_FOLLOW, NAMESPACE_OSTATUS."/unfollow"])) {
return self::followEntry($doc, $item, $owner, $toplevel);
} else {
return self::noteEntry($doc, $item, $owner, $toplevel);
}
}
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/**
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* @brief Adds a source entry to the XML document
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*
* @param object $doc XML document
* @param array $contact Array of the contact that is added
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*
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* @return object Source element
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*/
private static function sourceEntry($doc, $contact)
{
$source = $doc->createElement("source");
XML::addElement($doc, $source, "id", $contact["poll"]);
XML::addElement($doc, $source, "title", $contact["name"]);
XML::addElement($doc, $source, "link", "", ["rel" => "alternate", "type" => "text/html", "href" => $contact["alias"]]);
XML::addElement($doc, $source, "link", "", ["rel" => "self", "type" => "application/atom+xml", "href" => $contact["poll"]]);
XML::addElement($doc, $source, "icon", $contact["photo"]);
XML::addElement($doc, $source, "updated", DateTimeFormat::utc($contact["success_update"]."+00:00", DateTimeFormat::ATOM));
return $source;
}
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/**
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* @brief Fetches contact data from the contact or the gcontact table
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*
* @param string $url URL of the contact
* @param array $owner Contact data of the poster
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*
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* @return array Contact array
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*/
private static function contactEntry($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($owner["uid"])
);
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if (DBM::is_result($r)) {
$contact = $r[0];
$contact["uid"] = -1;
}
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if (!DBM::is_result($r)) {
$r = q(
"SELECT * FROM `gcontact` WHERE `nurl` = '%s' LIMIT 1",
dbesc(normalise_link($url))
);
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if (DBM::is_result($r)) {
$contact = $r[0];
$contact["uid"] = -1;
$contact["success_update"] = $contact["updated"];
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}
}
if (!DBM::is_result($r)) {
$contact = owner;
}
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if (!isset($contact["poll"])) {
$data = Probe::uri($url);
$contact["poll"] = $data["poll"];
if (!$contact["alias"]) {
$contact["alias"] = $data["alias"];
}
}
if (!isset($contact["alias"])) {
$contact["alias"] = $contact["url"];
}
return $contact;
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}
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/**
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* @brief Adds an entry element with reshared content
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*
* @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 string $repeated_guid guid
* @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
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*
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* @return object Entry element
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*/
private static function reshareEntry($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);
}
$title = self::entryHeader($doc, $entry, $owner, $item, $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($repeated_guid),
dbesc(NETWORK_DFRN),
dbesc(NETWORK_DIASPORA),
dbesc(NETWORK_OSTATUS)
);
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if (DBM::is_result($r)) {
$repeated_item = $r[0];
} else {
return false;
}
$contact = self::contactEntry($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::entryContent($doc, $entry, $item, $owner, $title, ACTIVITY_SHARE, false);
$as_object = $doc->createElement("activity:object");
XML::addElement($doc, $as_object, "activity:object-type", NAMESPACE_ACTIVITY_SCHEMA."activity");
self::entryContent($doc, $as_object, $repeated_item, $owner, "", "", false);
$author = self::addAuthor($doc, $contact, false);
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$as_object->appendChild($author);
$as_object2 = $doc->createElement("activity:object");
XML::addElement($doc, $as_object2, "activity:object-type", self::constructObjecttype($repeated_item));
$title = sprintf("New comment by %s", $contact["nick"]);
self::entryContent($doc, $as_object2, $repeated_item, $owner, $title);
$as_object->appendChild($as_object2);
self::entryFooter($doc, $as_object, $item, $owner, false);
$source = self::sourceEntry($doc, $contact);
$as_object->appendChild($source);
$entry->appendChild($as_object);
self::entryFooter($doc, $entry, $item, $owner);
return $entry;
}
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/**
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* @brief Adds an entry element with a "like"
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*
* @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 $toplevel Is it for en entry element (false) or a feed entry (true)?
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*
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* @return object Entry element with "like"
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*/
private static function likeEntry($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);
}
$title = self::entryHeader($doc, $entry, $owner, $item, $toplevel);
$verb = NAMESPACE_ACTIVITY_SCHEMA."favorite";
self::entryContent($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'] : $item['parent-uri']);
XML::addElement($doc, $as_object, "activity:object-type", self::constructObjecttype($parent[0]));
self::entryContent($doc, $as_object, $parent[0], $owner, "New entry");
$entry->appendChild($as_object);
self::entryFooter($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 $contact Contact data of the target
*
* @return object author element
*/
private static function addPersonObject($doc, $owner, $contact)
{
$object = $doc->createElement("activity:object");
XML::addElement($doc, $object, "activity:object-type", ACTIVITY_OBJ_PERSON);
if ($contact['network'] == NETWORK_PHANTOM) {
XML::addElement($doc, $object, "id", $contact['url']);
return $object;
}
XML::addElement($doc, $object, "id", $contact["alias"]);
XML::addElement($doc, $object, "title", $contact["nick"]);
$attributes = ["rel" => "alternate", "type" => "text/html", "href" => $contact["url"]];
XML::addElement($doc, $object, "link", "", $attributes);
$attributes = [
"rel" => "avatar",
"type" => "image/jpeg", // To-Do?
"media:width" => 175,
"media:height" => 175,
"href" => $contact["photo"]];
XML::addElement($doc, $object, "link", "", $attributes);
XML::addElement($doc, $object, "poco:preferredUsername", $contact["nick"]);
XML::addElement($doc, $object, "poco:displayName", $contact["name"]);
if (trim($contact["location"]) != "") {
$element = $doc->createElement("poco:address");
XML::addElement($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 $toplevel Is it for en entry element (false) or a feed entry (true)?
*
* @return object Entry element
*/
private static function followEntry($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($contact["url"]))
);
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if (DBM::is_result($r)) {
$connect_id = $r[0]['id'];
} else {
$connect_id = 0;
}
if ($item['verb'] == ACTIVITY_FOLLOW) {
$message = L10n::t('%s is now following %s.');
$title = L10n::t('following');
$action = "subscription";
} else {
$message = L10n::t('%s stopped following %s.');
$title = L10n::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"], $contact["nick"]);
self::entryHeader($doc, $entry, $owner, $item, $toplevel);
self::entryContent($doc, $entry, $item, $owner, $title);
$object = self::addPersonObject($doc, $owner, $contact);
$entry->appendChild($object);
self::entryFooter($doc, $entry, $item, $owner);
return $entry;
}
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/**
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* @brief Adds a regular entry element
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*
* @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 $toplevel Is it for en entry element (false) or a feed entry (true)?
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*
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* @return object Entry element
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*/
private static function noteEntry($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);
}
$title = self::entryHeader($doc, $entry, $owner, $item, $toplevel);
XML::addElement($doc, $entry, "activity:object-type", ACTIVITY_OBJ_NOTE);
self::entryContent($doc, $entry, $item, $owner, $title);
self::entryFooter($doc, $entry, $item, $owner);
return $entry;
}
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/**
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* @brief Adds a header element to the XML document
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*
* @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 $toplevel Is it for en entry element (false) or a feed entry (true)?
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*
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* @return string The title for the element
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*/
private static function entryHeader($doc, &$entry, $owner, $item, $toplevel)
{
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/// @todo Check if this title stuff is really needed (I guess not)
if (!$toplevel) {
$entry = $doc->createElement("entry");
$title = sprintf("New note by %s", $owner["nick"]);
if ($owner['account-type'] == ACCOUNT_TYPE_COMMUNITY) {
$contact = self::contactEntry($item['author-link'], $owner);
$author = self::addAuthor($doc, $contact, false);
$entry->appendChild($author);
}
} 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);
$entry->setAttribute("xmlns:statusnet", NAMESPACE_STATUSNET);
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$entry->setAttribute("xmlns:mastodon", NAMESPACE_MASTODON);
$author = self::addAuthor($doc, $owner);
$entry->appendChild($author);
$title = sprintf("New comment by %s", $owner["nick"]);
}
return $title;
}
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/**
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* @brief Adds elements to the XML document
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*
* @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 $complete Add the "status_net" element?
* @return void
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*/
private static function entryContent($doc, $entry, $item, $owner, $title, $verb = "", $complete = true)
{
if ($verb == "") {
$verb = self::constructVerb($item);
}
XML::addElement($doc, $entry, "id", $item["uri"]);
XML::addElement($doc, $entry, "title", $title);
$body = self::formatPicturePost($item['body']);
if ($item['title'] != "") {
$body = "[b]".$item['title']."[/b]\n\n".$body;
}
$body = BBCode::convert($body, false, 7);
XML::addElement($doc, $entry, "content", $body, ["type" => "html"]);
XML::addElement($doc, $entry, "link", "", ["rel" => "alternate", "type" => "text/html",
"href" => System::baseUrl()."/display/".$item["guid"]]
);
if ($complete && ($item["id"] > 0)) {
XML::addElement($doc, $entry, "status_net", "", ["notice_id" => $item["id"]]);
}
XML::addElement($doc, $entry, "activity:verb", $verb);
XML::addElement($doc, $entry, "published", DateTimeFormat::utc($item["created"]."+00:00", DateTimeFormat::ATOM));
XML::addElement($doc, $entry, "updated", DateTimeFormat::utc($item["edited"]."+00:00", DateTimeFormat::ATOM));
}
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/**
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* @brief Adds the elements at the foot of an entry to the XML document
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*
* @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 bool $complete default true
* @return void
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*/
private static function entryFooter($doc, $entry, $item, $owner, $complete = true)
{
$mentioned = [];
if (($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($parent_item)
);
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if ($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"];
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}
$attributes = [
"ref" => $parent_item,
"href" => $parent_plink];
XML::addElement($doc, $entry, "thr:in-reply-to", "", $attributes);
$attributes = [
"rel" => "related",
"href" => $parent_plink];
XML::addElement($doc, $entry, "link", "", $attributes);
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}
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if (intval($item["parent"]) > 0) {
$conversation_href = System::baseUrl()."/display/".$owner["nick"]."/".$item["parent"];
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$conversation_uri = $conversation_href;
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if (isset($parent_item)) {
$r = dba::fetch_first("SELECT `conversation-uri`, `conversation-href` FROM `conversation` WHERE `item-uri` = ?", $parent_item);
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if (DBM::is_result($r)) {
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if ($r['conversation-uri'] != '') {
$conversation_uri = $r['conversation-uri'];
}
if ($r['conversation-href'] != '') {
$conversation_href = $r['conversation-href'];
}
}
}
XML::addElement($doc, $entry, "link", "", ["rel" => "ostatus:conversation", "href" => $conversation_href]);
$attributes = [
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"href" => $conversation_href,
"local_id" => $item["parent"],
"ref" => $conversation_uri];
XML::addElement($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)
$newmentions = [];
foreach ($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) {
$condition = ['uid' => $owner['uid'], 'nurl' => normalise_link($mention)];
$contact = dba::selectFirst('contact', ['forum', 'prv', 'self', 'contact-type'], $condition);
if ($contact["forum"] || $contact["prv"] || ($owner['contact-type'] == ACCOUNT_TYPE_COMMUNITY) ||
($contact['self'] && ($owner['account-type'] == ACCOUNT_TYPE_COMMUNITY))) {
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" => $mention]
);
}
}
if ($owner['account-type'] == ACCOUNT_TYPE_COMMUNITY) {
XML::addElement($doc, $entry, "link", "", ["rel" => "mentioned",
"ostatus:object-type" => "http://activitystrea.ms/schema/1.0/group",
"href" => $owner['url']]);
}
if (!$item["private"]) {
XML::addElement($doc, $entry, "link", "", ["rel" => "ostatus:attention",
"href" => "http://activityschema.org/collection/public"]);
XML::addElement($doc, $entry, "link", "", ["rel" => "mentioned",
"ostatus:object-type" => "http://activitystrea.ms/schema/1.0/collection",
"href" => "http://activityschema.org/collection/public"]);
XML::addElement($doc, $entry, "mastodon:scope", "public");
}
if (count($tags)) {
foreach ($tags as $t) {
if ($t[0] != "@") {
XML::addElement($doc, $entry, "category", "", ["term" => $t[2]]);
}
}
}
self::getAttachment($doc, $entry, $item);
if ($complete && ($item["id"] > 0)) {
$app = $item["app"];
if ($app == "") {
$app = "web";
}
$attributes = ["local_id" => $item["id"], "source" => $app];
if (isset($parent["id"])) {
$attributes["repeat_of"] = $parent["id"];
}
if ($item["coord"] != "") {
XML::addElement($doc, $entry, "georss:point", $item["coord"]);
}
XML::addElement($doc, $entry, "statusnet:notice_info", "", $attributes);
}
}
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/**
* Creates the XML feed for a given nickname
*
* Supported filters:
* - activity (default): all the public posts
* - posts: all the public top-level posts
* - comments: all the public replies
*
* Updates the provided last_update parameter if the result comes from the
* cache or it is empty
*
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* @brief Creates the XML feed for a given nickname
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*
* @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
* @param string $filter Feed items filter (activity, posts or comments)
* @param boolean $nocache Wether to bypass caching
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*
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* @return string XML feed
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*/
public static function feed($owner_nick, &$last_update, $max_items = 300, $filter = 'activity', $nocache = false)
{
$stamp = microtime(true);
$cachekey = "ostatus:feed:" . $owner_nick . ":" . $filter . ":" . $last_update;
$previous_created = $last_update;
$result = Cache::get($cachekey);
if (!$nocache && !is_null($result)) {
logger('Feed duration: ' . number_format(microtime(true) - $stamp, 3) . ' - ' . $owner_nick . ' - ' . $filter . ' - ' . $previous_created . ' (cached)', LOGGER_DEBUG);
$last_update = $result['last_update'];
return $result['feed'];
}
$owner = dba::fetch_first(
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"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` = ? LIMIT 1",
$owner_nick
);
if (!DBM::is_result($owner)) {
return;
}
if (!strlen($last_update)) {
$last_update = 'now -30 days';
}
$check_date = DateTimeFormat::utc($last_update);
$authorid = Contact::getIdForURL($owner["url"], 0, true);
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$sql_extra = '';
if ($filter === 'posts') {
$sql_extra .= ' AND `item`.`id` = `item`.`parent` ';
}
if ($filter === 'comments') {
$sql_extra .= sprintf(" AND `item`.`object-type` = '%s' ", dbesc(ACTIVITY_OBJ_COMMENT));
}
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if ($owner['account-type'] != ACCOUNT_TYPE_COMMUNITY) {
$sql_extra .= sprintf(" AND `item`.`contact-id` = %d AND `item`.`author-id` = %d ", intval($owner["id"]), intval($authorid));
}
$items = q(
"SELECT `item`.*, `item`.`id` AS `item_id` FROM `item` USE INDEX (`uid_contactid_created`)
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STRAIGHT_JOIN `thread` ON `thread`.`iid` = `item`.`parent`
WHERE `item`.`uid` = %d
AND `item`.`created` > '%s'
AND NOT `item`.`deleted`
AND NOT `item`.`private`
AND `item`.`visible`
AND `item`.`wall`
AND `thread`.`network` IN ('%s', '%s')
$sql_extra
ORDER BY `item`.`created` DESC LIMIT %d",
intval($owner["uid"]),
dbesc($check_date),
dbesc(NETWORK_OSTATUS),
dbesc(NETWORK_DFRN),
intval($max_items)
);
$doc = new DOMDocument('1.0', 'utf-8');
$doc->formatOutput = true;
$root = self::addHeader($doc, $owner, $filter);
foreach ($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 = ['feed' => $feeddata, 'last_update' => $last_update];
Cache::set($cachekey, $msg, CACHE_QUARTER_HOUR);
logger('Feed duration: ' . number_format(microtime(true) - $stamp, 3) . ' - ' . $owner_nick . ' - ' . $filter . ' - ' . $previous_created, LOGGER_DEBUG);
return $feeddata;
}
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/**
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* @brief Creates the XML for a salmon message
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*
* @param array $item Data of the item that is to be posted
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* @param array $owner Contact data of the poster
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*
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* @return string XML for the salmon
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*/
public static function salmon($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());
}
}