friendica/src/Protocol/OStatus.php

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<?php
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/**
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* @copyright Copyright (C) 2010-2022, the Friendica project
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
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*/
namespace Friendica\Protocol;
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use DOMDocument;
use DOMXPath;
use Friendica\Content\Text\BBCode;
use Friendica\Content\Text\HTML;
use Friendica\Core\Cache\Enum\Duration;
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use Friendica\Core\Logger;
use Friendica\Core\Protocol;
use Friendica\Database\DBA;
use Friendica\DI;
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use Friendica\Model\APContact;
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use Friendica\Model\Contact;
use Friendica\Model\Conversation;
use Friendica\Model\Item;
use Friendica\Model\ItemURI;
use Friendica\Model\Post;
use Friendica\Model\Tag;
use Friendica\Model\User;
use Friendica\Network\HTTPClient\Client\HttpClientAccept;
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use Friendica\Network\Probe;
use Friendica\Util\DateTimeFormat;
use Friendica\Util\Images;
use Friendica\Util\Proxy;
use Friendica\Util\Strings;
use Friendica\Util\XML;
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/**
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* This class contain functions for the OStatus protocol
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*/
class OStatus
{
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private static $itemlist;
private static $conv_list = [];
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/**
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* Fetches author data
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*
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* @param DOMXPath $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
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
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*/
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private static function fetchAuthor(DOMXPath $xpath, $context, array $importer, array &$contact = null, $onlyfetch)
{
$author = [];
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$author["author-link"] = XML::getFirstNodeValue($xpath, 'atom:author/atom:uri/text()', $context);
$author["author-name"] = XML::getFirstNodeValue($xpath, 'atom:author/atom:name/text()', $context);
$addr = XML::getFirstNodeValue($xpath, 'atom:author/atom:email/text()', $context);
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$aliaslink = $author["author-link"];
$alternate_item = $xpath->query("atom:author/atom:link[@rel='alternate']", $context)->item(0);
if (is_object($alternate_item)) {
foreach ($alternate_item->attributes as $attributes) {
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if (($attributes->name == "href") && ($attributes->textContent != "")) {
$author["author-link"] = $attributes->textContent;
}
}
}
$author["author-id"] = Contact::getIdForURL($author["author-link"]);
$author['contact-id'] = ($contact['id'] ?? 0) ?: $author['author-id'];
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$contact = [];
/*
This here would be better, but we would get problems with contacts from the statusnet addon
This is kept here as a reminder for the future
$cid = Contact::getIdForURL($author["author-link"], $importer["uid"]);
if ($cid) {
$contact = DBA::selectFirst('contact', [], ['id' => $cid]);
}
*/
if ($aliaslink != '') {
$condition = ["`uid` = ? AND `alias` = ? AND `network` != ? AND `rel` IN (?, ?)",
$importer["uid"], $aliaslink, Protocol::STATUSNET,
Contact::SHARING, Contact::FRIEND];
$contact = DBA::selectFirst('contact', [], $condition);
}
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if (!DBA::isResult($contact) && $author["author-link"] != '') {
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if ($aliaslink == "") {
$aliaslink = $author["author-link"];
}
$condition = ["`uid` = ? AND `nurl` IN (?, ?) AND `network` != ? AND `rel` IN (?, ?)",
$importer["uid"], Strings::normaliseLink($author["author-link"]), Strings::normaliseLink($aliaslink),
Protocol::STATUSNET, Contact::SHARING, Contact::FRIEND];
$contact = DBA::selectFirst('contact', [], $condition);
}
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if (!DBA::isResult($contact) && ($addr != '')) {
$condition = ["`uid` = ? AND `addr` = ? AND `network` != ? AND `rel` IN (?, ?)",
$importer["uid"], $addr, Protocol::STATUSNET,
Contact::SHARING, Contact::FRIEND];
$contact = DBA::selectFirst('contact', [], $condition);
}
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if (DBA::isResult($contact)) {
if ($contact['blocked']) {
$contact['id'] = -1;
} elseif (!empty(APContact::getByURL($contact['url'], false))) {
ActivityPub\Receiver::switchContact($contact['id'], $importer['uid'], $contact['url']);
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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), $author["author-link"]);
}
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$displayname = XML::getFirstNodeValue($xpath, 'atom:author/poco:displayName/text()', $context);
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if ($displayname != "") {
$author["author-name"] = $displayname;
}
$author["owner-id"] = $author["author-id"];
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// Only update the contacts if it is an OStatus contact
if (DBA::isResult($contact) && ($contact['id'] > 0) && !$onlyfetch && ($contact["network"] == Protocol::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"];
$contact['nurl'] = Strings::normaliseLink($contact['url']);
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$value = XML::getFirstNodeValue($xpath, 'atom:author/atom:uri/text()', $context);
if ($value != "") {
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$contact["alias"] = $value;
}
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$value = XML::getFirstNodeValue($xpath, 'atom:author/poco:displayName/text()', $context);
if ($value != "") {
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$contact["name"] = $value;
}
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$value = XML::getFirstNodeValue($xpath, 'atom:author/poco:preferredUsername/text()', $context);
if ($value != "") {
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$contact["nick"] = $value;
}
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$value = XML::getFirstNodeValue($xpath, 'atom:author/poco:note/text()', $context);
if ($value != "") {
$contact["about"] = HTML::toBBCode($value);
}
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$value = XML::getFirstNodeValue($xpath, 'atom:author/poco:address/poco:formatted/text()', $context);
if ($value != "") {
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$contact["location"] = $value;
}
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$contact['name-date'] = DateTimeFormat::utcNow();
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Contact::update($contact, ['id' => $contact["id"]], $current);
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if (!empty($author["author-avatar"]) && ($author["author-avatar"] != $current['avatar'])) {
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Logger::info("Update profile picture for contact ".$contact["id"]);
Contact::updateAvatar($contact["id"], $author["author-avatar"]);
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}
// Ensure that we are having this contact (with uid=0)
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$cid = Contact::getIdForURL($aliaslink);
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if ($cid) {
$fields = ['url', 'nurl', 'name', 'nick', 'alias', 'about', 'location'];
$old_contact = DBA::selectFirst('contact', $fields, ['id' => $cid]);
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// Update it with the current values
$fields = ['url' => $author["author-link"], 'name' => $contact["name"],
'nurl' => Strings::normaliseLink($author["author-link"]),
'nick' => $contact["nick"], 'alias' => $contact["alias"],
'about' => $contact["about"], 'location' => $contact["location"],
'success_update' => DateTimeFormat::utcNow(), 'last-update' => DateTimeFormat::utcNow()];
Contact::update($fields, ['id' => $cid], $old_contact);
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// Update the avatar
if (!empty($author["author-avatar"])) {
Contact::updateAvatar($cid, $author["author-avatar"]);
}
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}
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} elseif (empty($contact["network"]) || ($contact["network"] != Protocol::DFRN)) {
$contact = [];
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}
return $author;
}
/**
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* Fetches author data from a given XML string
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*
* @param string $xml The XML
* @param array $importer user record of the importing user
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*
* @return array Array of author related entries for the item
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
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*/
public static function salmonAuthor($xml, array $importer)
{
if ($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', ActivityNamespace::ATOM1);
$xpath->registerNamespace('thr', ActivityNamespace::THREAD);
$xpath->registerNamespace('georss', ActivityNamespace::GEORSS);
$xpath->registerNamespace('activity', ActivityNamespace::ACTIVITY);
$xpath->registerNamespace('media', ActivityNamespace::MEDIA);
$xpath->registerNamespace('poco', ActivityNamespace::POCO);
$xpath->registerNamespace('ostatus', ActivityNamespace::OSTATUS);
$xpath->registerNamespace('statusnet', ActivityNamespace::STATUSNET);
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$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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}
/**
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* Read attributes from element
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*
* @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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/**
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* Imports an XML string containing OStatus elements
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*
* @param string $xml The XML
* @param array $importer user record of the importing user
* @param array $contact contact
* @param string $hub Called by reference, returns the fetched hub data
* @return void
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
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*/
public static function import($xml, array $importer, array &$contact, &$hub)
{
self::process($xml, $importer, $contact, $hub, false, true, Conversation::PUSH);
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}
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/**
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* 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 $initialize Is it the leading post so that data has to be initialized?
*
* @return boolean Could the XML be processed?
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
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*/
private static function process($xml, array $importer, array &$contact = null, &$hub, $stored = false, $initialize = true, $direction = Conversation::UNKNOWN)
{
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if ($initialize) {
self::$itemlist = [];
self::$conv_list = [];
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}
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Logger::info('Import OStatus message for user ' . $importer['uid']);
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if ($xml == "") {
return false;
}
$doc = new DOMDocument();
@$doc->loadXML($xml);
$xpath = new DOMXPath($doc);
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$xpath->registerNamespace('atom', ActivityNamespace::ATOM1);
$xpath->registerNamespace('thr', ActivityNamespace::THREAD);
$xpath->registerNamespace('georss', ActivityNamespace::GEORSS);
$xpath->registerNamespace('activity', ActivityNamespace::ACTIVITY);
$xpath->registerNamespace('media', ActivityNamespace::MEDIA);
$xpath->registerNamespace('poco', ActivityNamespace::POCO);
$xpath->registerNamespace('ostatus', ActivityNamespace::OSTATUS);
$xpath->registerNamespace('statusnet', ActivityNamespace::STATUSNET);
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$hub = "";
$hub_items = $xpath->query("/atom:feed/atom:link[@rel='hub']")->item(0);
if (is_object($hub_items)) {
$hub_attributes = $hub_items->attributes;
if (is_object($hub_attributes)) {
foreach ($hub_attributes as $hub_attribute) {
if ($hub_attribute->name == "href") {
$hub = $hub_attribute->textContent;
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Logger::info("Found hub ".$hub);
}
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}
}
}
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$header = [];
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$header["uid"] = $importer["uid"];
$header["network"] = Protocol::OSTATUS;
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$header["wall"] = 0;
$header["origin"] = 0;
$header["gravity"] = GRAVITY_COMMENT;
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if (!is_object($doc->firstChild) || empty($doc->firstChild->tagName)) {
return false;
}
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$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();
$header["protocol"] = Conversation::PARCEL_SALMON;
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$header["source"] = $xml2;
$header["direction"] = $direction;
} elseif (!$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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// 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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}
$item = array_merge($header, $author);
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$item["uri"] = XML::getFirstNodeValue($xpath, 'atom:id/text()', $entry);
$item['uri-id'] = ItemURI::insert(['uri' => $item['uri']]);
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$item["verb"] = XML::getFirstNodeValue($xpath, 'activity:verb/text()', $entry);
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// Delete a message
if (in_array($item["verb"], ['qvitter-delete-notice', Activity::DELETE, 'delete'])) {
self::deleteNotice($item);
continue;
}
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if (in_array($item["verb"], [Activity::O_UNFAVOURITE, Activity::UNFAVORITE])) {
// Ignore "Unfavorite" message
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Logger::info("Ignore unfavorite message ", ['item' => $item]);
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continue;
}
// Deletions come with the same uri, so we check for duplicates after processing deletions
if (Post::exists(['uid' => $importer["uid"], 'uri' => $item["uri"]])) {
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Logger::info('Post with URI '.$item["uri"].' already existed for user '.$importer["uid"].'.');
continue;
} else {
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Logger::info('Processing post with URI '.$item["uri"].' for user '.$importer["uid"].'.');
}
if ($item["verb"] == Activity::JOIN) {
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// ignore "Join" messages
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Logger::info("Ignore join message ", ['item' => $item]);
continue;
}
if ($item["verb"] == "http://mastodon.social/schema/1.0/block") {
// ignore mastodon "block" messages
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Logger::info("Ignore block message ", ['item' => $item]);
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continue;
}
if ($item["verb"] == Activity::FOLLOW) {
Contact::addRelationship($importer, $contact, $item);
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continue;
}
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if ($item["verb"] == Activity::O_UNFOLLOW) {
$dummy = null;
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Contact::removeFollower($contact);
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continue;
}
if ($item["verb"] == Activity::FAVORITE) {
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$orig_uri = $xpath->query("activity:object/atom:id", $entry)->item(0)->nodeValue;
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Logger::notice("Favorite", ['uri' => $orig_uri, 'item' => $item]);
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$item["verb"] = Activity::LIKE;
$item["thr-parent"] = $orig_uri;
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$item["gravity"] = GRAVITY_ACTIVITY;
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$item["object-type"] = Activity\ObjectType::NOTE;
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}
// http://activitystrea.ms/schema/1.0/rsvp-yes
if (!in_array($item["verb"], [Activity::POST, Activity::LIKE, Activity::SHARE])) {
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Logger::info("Unhandled verb", ['verb' => $item["verb"], 'item' => $item]);
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}
self::processPost($xpath, $entry, $item, $importer);
if ($initialize && (count(self::$itemlist) > 0)) {
if (self::$itemlist[0]['uri'] == self::$itemlist[0]['thr-parent']) {
$uid = self::$itemlist[0]['uid'];
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// We will import it everytime, when it is started by our contacts
$valid = Contact::isSharingByURL(self::$itemlist[0]['author-link'], $uid);
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if (!$valid) {
// If not, then it depends on this setting
$valid = !$uid || DI::pConfig()->get($uid, 'system', 'accept_only_sharer') != Item::COMPLETION_NONE;
if ($valid) {
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Logger::info("Item with uri ".self::$itemlist[0]['uri']." will be imported due to the system settings.");
}
} else {
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Logger::info("Item with uri ".self::$itemlist[0]['uri']." belongs to a contact (".self::$itemlist[0]['contact-id']."). It will be imported.");
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}
if ($valid && DI::pConfig()->get($uid, 'system', 'accept_only_sharer') != Item::COMPLETION_LIKE) {
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// 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 $item) {
if (in_array($item['verb'], $verbs) && Contact::isSharingByURL($item['author-link'], $item['uid'])) {
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$valid = true;
}
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}
if ($valid) {
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Logger::info("Item with uri ".self::$itemlist[0]['uri']." will be imported since the thread contains posts or shares.");
}
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}
} else {
$valid = true;
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}
if ($valid) {
$default_contact = 0;
for ($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 = Post::exists(['uid' => $importer["uid"], 'uri' => $item["uri"]]);
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if ($found) {
Logger::notice("Item with uri ".$item["uri"]." for user ".$importer["uid"]." already exists.");
} elseif ($item['contact-id'] < 0) {
Logger::notice("Item with uri ".$item["uri"]." is from a blocked contact.");
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} else {
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$ret = Item::insert($item);
Logger::info("Item with uri ".$item["uri"]." for user ".$importer["uid"].' stored. Return value: '.$ret);
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}
}
}
self::$itemlist = [];
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}
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Logger::info('Processing done for post with URI '.$item["uri"].' for user '.$importer["uid"].'.');
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}
return true;
}
/**
* Removes notice item from database
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*
* @param array $item item
* @return void
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* @throws \Exception
*/
private static function deleteNotice(array $item)
{
$condition = ['uid' => $item['uid'], 'author-id' => $item['author-id'], 'uri' => $item['uri']];
if (!Post::exists($condition)) {
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Logger::notice('Item from '.$item['author-link'].' with uri '.$item['uri'].' for user '.$item['uid']." wasn't found. We don't delete it.");
return;
}
Item::markForDeletion($condition);
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Logger::notice('Deleted item with uri '.$item['uri'].' for user '.$item['uid']);
}
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/**
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* Processes the XML for a post
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*
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* @param DOMXPath $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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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
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*/
private static function processPost(DOMXPath $xpath, $entry, array &$item, array $importer)
{
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$item["body"] = HTML::toBBCode(XML::getFirstNodeValue($xpath, 'atom:content/text()', $entry));
$item["object-type"] = XML::getFirstNodeValue($xpath, 'activity:object-type/text()', $entry);
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if (($item["object-type"] == Activity\ObjectType::BOOKMARK) || ($item["object-type"] == Activity\ObjectType::EVENT)) {
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$item["title"] = XML::getFirstNodeValue($xpath, 'atom:title/text()', $entry);
$item["body"] = XML::getFirstNodeValue($xpath, 'atom:summary/text()', $entry);
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} elseif ($item["object-type"] == Activity\ObjectType::QUESTION) {
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$item["title"] = XML::getFirstNodeValue($xpath, 'atom:title/text()', $entry);
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}
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$item["created"] = XML::getFirstNodeValue($xpath, 'atom:published/text()', $entry);
$item["edited"] = XML::getFirstNodeValue($xpath, 'atom:updated/text()', $entry);
$item['conversation-uri'] = XML::getFirstNodeValue($xpath, 'ostatus:conversation/text()', $entry);
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$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["thr-parent"] = $attributes->textContent;
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}
if ($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') {
// Store the hashtag
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Tag::store($item['uri-id'], Tag::HASHTAG, $attributes->textContent);
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}
}
}
}
$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 != "") || ($item["verb"] == Activity::SHARE)) {
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$link_data = self::processRepeatedItem($xpath, $entry, $item, $importer);
if (!empty($link_data['add_body'])) {
$add_body .= $link_data['add_body'];
}
}
$item["body"] .= $add_body;
Tag::storeFromBody($item['uri-id'], $item['body']);
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// Mastodon Content Warning
if (($item["verb"] == Activity::POST) && $xpath->evaluate('boolean(atom:summary)', $entry)) {
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$clear_text = XML::getFirstNodeValue($xpath, 'atom:summary/text()', $entry);
if (!empty($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["thr-parent"])) {
if (!Post::exists(['uid' => $importer["uid"], 'uri' => $item['thr-parent']])) {
if ($related != '') {
self::fetchRelated($related, $item["thr-parent"], $importer);
}
} else {
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Logger::info('Reply with URI '.$item["uri"].' already existed for user '.$importer["uid"].'.');
}
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} else {
$item["thr-parent"] = $item["uri"];
$item["gravity"] = GRAVITY_PARENT;
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}
if (($item['author-link'] != '') && !empty($item['protocol'])) {
$item = Conversation::insert($item);
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}
self::$itemlist[] = $item;
}
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/**
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* Fetch the conversation for posts
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*
* @param string $conversation The link to the conversation
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* @param string $conversation_uri The conversation in "uri" format
* @return void
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
private static function fetchConversation($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;
$curlResult = DI::httpClient()->get($conversation, HttpClientAccept::ATOM_XML);
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if (!$curlResult->isSuccess() || empty($curlResult->getBody())) {
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return;
}
$xml = '';
if ($curlResult->inHeader('Content-Type') &&
in_array('application/atom+xml', $curlResult->getHeader('Content-Type'))) {
$xml = $curlResult->getBody();
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}
if ($xml == '') {
$doc = new DOMDocument();
if (!@$doc->loadHTML($curlResult->getBody())) {
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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 != '') {
$conversation_atom = DI::httpClient()->get($attribute['href'], HttpClientAccept::ATOM_XML);
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if ($conversation_atom->isSuccess()) {
$xml = $conversation_atom->getBody();
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}
}
}
}
if ($xml == '') {
return;
}
self::storeConversation($xml, $conversation, $conversation_uri);
}
/**
2020-01-19 01:05:23 -05:00
* Store a feed in several conversation entries
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*
* @param string $xml The feed
* @param string $conversation conversation
* @param string $conversation_uri conversation uri
* @return void
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* @throws \Exception
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*/
private static function storeConversation($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', ActivityNamespace::ATOM1);
$xpath->registerNamespace('thr', ActivityNamespace::THREAD);
$xpath->registerNamespace('ostatus', ActivityNamespace::OSTATUS);
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$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'] = Conversation::PARCEL_SPLIT_CONVERSATION;
$conv_data['direction'] = Conversation::PULL;
$conv_data['network'] = Protocol::OSTATUS;
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$conv_data['uri'] = XML::getFirstNodeValue($xpath, 'atom:id/text()', $entry);
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$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'] = $attributes->textContent;
}
}
}
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$conv_data['conversation-uri'] = XML::getFirstNodeValue($xpath, 'ostatus:conversation/text()', $entry);
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$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'] = $doc2->saveXML();
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Logger::info('Store conversation data for uri '.$conv_data['uri']);
Conversation::insert($conv_data);
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}
}
/**
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* 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 $item The item array
* @return void
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
*/
private static function fetchSelf($self, array &$item)
{
$condition = ['item-uri' => $self, 'protocol' => [Conversation::PARCEL_DFRN,
Conversation::PARCEL_DIASPORA_DFRN, Conversation::PARCEL_LOCAL_DFRN,
Conversation::PARCEL_DIRECT, Conversation::PARCEL_SALMON]];
if (DBA::exists('conversation', $condition)) {
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Logger::info('Conversation '.$item['uri'].' is already stored.');
return;
}
$curlResult = DI::httpClient()->get($self, HttpClientAccept::ATOM_XML);
if (!$curlResult->isSuccess()) {
return;
}
// We reformat the XML to make it better readable
$doc = new DOMDocument();
$doc->loadXML($curlResult->getBody());
$doc->preserveWhiteSpace = false;
$doc->formatOutput = true;
$xml = $doc->saveXML();
$item["protocol"] = Conversation::PARCEL_SALMON;
$item["source"] = $xml;
$item["direction"] = Conversation::PULL;
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Logger::info('Conversation '.$item['uri'].' is now fetched.');
}
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/**
2020-01-19 01:05:23 -05:00
* Fetch related posts and processes them
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*
* @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 $importer user record of the importing user
* @return void
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
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*/
private static function fetchRelated($related, $related_uri, $importer)
{
$condition = ['item-uri' => $related_uri, 'protocol' => [Conversation::PARCEL_DFRN,
Conversation::PARCEL_DIASPORA_DFRN, Conversation::PARCEL_LOCAL_DFRN,
Conversation::PARCEL_DIRECT, Conversation::PARCEL_SALMON]];
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$conversation = DBA::selectFirst('conversation', ['source', 'protocol'], $condition);
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if (DBA::isResult($conversation)) {
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$stored = true;
$xml = $conversation['source'];
if (self::process($xml, $importer, $contact, $hub, $stored, false, Conversation::PULL)) {
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Logger::info('Got valid cached XML for URI '.$related_uri);
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return;
}
if ($conversation['protocol'] == Conversation::PARCEL_SALMON) {
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Logger::info('Delete invalid cached XML for URI '.$related_uri);
DBA::delete('conversation', ['item-uri' => $related_uri]);
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}
}
$stored = false;
$curlResult = DI::httpClient()->get($related, HttpClientAccept::ATOM_XML);
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if (!$curlResult->isSuccess() || empty($curlResult->getBody())) {
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return;
}
$xml = '';
if ($curlResult->inHeader('Content-Type') &&
in_array('application/atom+xml', $curlResult->getHeader('Content-Type'))) {
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Logger::info('Directly fetched XML for URI ' . $related_uri);
$xml = $curlResult->getBody();
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}
if ($xml == '') {
$doc = new DOMDocument();
if (!@$doc->loadHTML($curlResult->getBody())) {
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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 != '') {
$curlResult = DI::httpClient()->get($atom_file, HttpClientAccept::ATOM_XML);
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if ($curlResult->isSuccess()) {
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Logger::info('Fetched XML for URI ' . $related_uri);
$xml = $curlResult->getBody();
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}
}
}
}
// Workaround for older GNU Social servers
if (($xml == '') && strstr($related, '/notice/')) {
$curlResult = DI::httpClient()->get(str_replace('/notice/', '/api/statuses/show/', $related) . '.atom', HttpClientAccept::ATOM_XML);
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if ($curlResult->isSuccess()) {
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Logger::info('GNU Social workaround to fetch XML for URI ' . $related_uri);
$xml = $curlResult->getBody();
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}
}
// Even more worse workaround for GNU Social ;-)
if ($xml == '') {
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$related_guess = self::convertHref($related_uri);
$curlResult = DI::httpClient()->get(str_replace('/notice/', '/api/statuses/show/', $related_guess) . '.atom', HttpClientAccept::ATOM_XML);
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if ($curlResult->isSuccess()) {
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Logger::info('GNU Social workaround 2 to fetch XML for URI ' . $related_uri);
$xml = $curlResult->getBody();
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}
}
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// Finally we take the data that we fetched from "ostatus:conversation"
if ($xml == '') {
$condition = ['item-uri' => $related_uri, 'protocol' => Conversation::PARCEL_SPLIT_CONVERSATION];
$conversation = DBA::selectFirst('conversation', ['source'], $condition);
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if (DBA::isResult($conversation)) {
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$stored = true;
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Logger::info('Got cached XML from conversation for URI '.$related_uri);
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$xml = $conversation['source'];
}
}
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if ($xml != '') {
self::process($xml, $importer, $contact, $hub, $stored, false, Conversation::PULL);
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} else {
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Logger::info("XML couldn't be fetched for URI: ".$related_uri." - href: ".$related);
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}
return;
}
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/**
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* Processes the XML for a repeated post
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*
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* @param DOMXPath $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
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
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*/
private static function processRepeatedItem(DOMXPath $xpath, $entry, array &$item, array $importer)
{
$activityobject = $xpath->query('activity:object', $entry)->item(0);
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if (!is_object($activityobject)) {
return [];
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}
$link_data = [];
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$orig_uri = XML::getFirstNodeValue($xpath, 'atom:id/text()', $activityobject);
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$links = $xpath->query("atom:link", $activityobject);
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if ($links) {
$link_data = self::processLinks($links, $item);
}
$orig_body = XML::getFirstNodeValue($xpath, 'atom:content/text()', $activityobject);
$orig_created = XML::getFirstNodeValue($xpath, 'atom:published/text()', $activityobject);
$orig_edited = XML::getFirstNodeValue($xpath, 'atom:updated/text()', $activityobject);
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$orig_author = self::fetchAuthor($xpath, $activityobject, $importer, $dummy, false);
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$item["author-name"] = $orig_author["author-name"];
$item["author-link"] = $orig_author["author-link"];
$item["author-id"] = $orig_author["author-id"];
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$item["body"] = HTML::toBBCode($orig_body);
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$item["created"] = $orig_created;
$item["edited"] = $orig_edited;
$item["uri"] = $orig_uri;
$item["verb"] = XML::getFirstNodeValue($xpath, 'activity:verb/text()', $activityobject);
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$item["object-type"] = XML::getFirstNodeValue($xpath, 'activity:object-type/text()', $activityobject);
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// Mastodon Content Warning
if (($item["verb"] == Activity::POST) && $xpath->evaluate('boolean(atom:summary)', $activityobject)) {
$clear_text = XML::getFirstNodeValue($xpath, 'atom:summary/text()', $activityobject);
if (!empty($clear_text)) {
$item['content-warning'] = HTML::toBBCode($clear_text);
}
}
$inreplyto = $xpath->query('thr:in-reply-to', $activityobject);
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if (is_object($inreplyto->item(0))) {
foreach ($inreplyto->item(0)->attributes as $attributes) {
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if ($attributes->name == "ref") {
$item["thr-parent"] = $attributes->textContent;
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}
}
}
return $link_data;
}
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/**
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* Processes links in the XML
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*
* @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, array &$item)
{
$link_data = ['add_body' => '', 'self' => ''];
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foreach ($links as $link) {
$attribute = self::readAttributes($link);
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if (!empty($attribute['rel']) && !empty($attribute['href'])) {
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switch ($attribute['rel']) {
case "alternate":
$item["plink"] = $attribute['href'];
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if (($item["object-type"] == Activity\ObjectType::QUESTION)
|| ($item["object-type"] == Activity\ObjectType::EVENT)
) {
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Post\Media::insert(['uri-id' => $item['uri-id'], 'type' => Post\Media::UNKNOWN,
'url' => $attribute['href'], 'mimetype' => $attribute['type'] ?? null,
'size' => $attribute['length'] ?? null, 'description' => $attribute['title'] ?? null]);
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}
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 {
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Post\Media::insert(['uri-id' => $item['uri-id'], 'type' => Post\Media::DOCUMENT,
'url' => $attribute['href'], 'mimetype' => $attribute['type'],
'size' => $attribute['length'] ?? null, 'description' => $attribute['title'] ?? null]);
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}
break;
case "related":
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if ($item["object-type"] != Activity\ObjectType::BOOKMARK) {
if (!isset($item["thr-parent"])) {
$item["thr-parent"] = $attribute['href'];
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}
$link_data['related'] = $attribute['href'];
} else {
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Post\Media::insert(['uri-id' => $item['uri-id'], 'type' => Post\Media::UNKNOWN,
'url' => $attribute['href'], 'mimetype' => $attribute['type'] ?? null,
'size' => $attribute['length'] ?? null, 'description' => $attribute['title'] ?? null]);
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}
break;
case "self":
if (empty($item["plink"])) {
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$item["plink"] = $attribute['href'];
}
$link_data['self'] = $attribute['href'];
break;
}
}
}
return $link_data;
}
/**
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* Create an url out of an uri
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*
* @param string $href URI in the format "parameter1:parameter1:..."
*
* @return string URL in the format http(s)://....
*/
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private static function convertHref($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];
}
}
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/**
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* Cleans the body of a post if it contains picture links
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*
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* @param string $body The body
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*
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* @return string The cleaned body
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
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public static function formatPicturePost($body, $uriid)
{
$siteinfo = BBCode::getAttachedData($body);
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if (($siteinfo["type"] == "photo") && (!empty($siteinfo["preview"]) || !empty($siteinfo["image"]))) {
if (isset($siteinfo["preview"])) {
$preview = $siteinfo["preview"];
} else {
$preview = $siteinfo["image"];
}
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// Is it a remote picture? Then make a smaller preview here
$preview = Post\Link::getByLink($uriid, $preview, 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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* Adds the header elements to the XML document
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*
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* @param DOMDocument $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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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
private static function addHeader(DOMDocument $doc, array $owner, $filter)
{
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$root = $doc->createElementNS(ActivityNamespace::ATOM1, 'feed');
$doc->appendChild($root);
$root->setAttribute("xmlns:thr", ActivityNamespace::THREAD);
$root->setAttribute("xmlns:georss", ActivityNamespace::GEORSS);
$root->setAttribute("xmlns:activity", ActivityNamespace::ACTIVITY);
$root->setAttribute("xmlns:media", ActivityNamespace::MEDIA);
$root->setAttribute("xmlns:poco", ActivityNamespace::POCO);
$root->setAttribute("xmlns:ostatus", ActivityNamespace::OSTATUS);
$root->setAttribute("xmlns:statusnet", ActivityNamespace::STATUSNET);
$root->setAttribute("xmlns:mastodon", ActivityNamespace::MASTODON);
$title = '';
$selfUri = '/feed/' . $owner["nick"] . '/';
switch ($filter) {
case 'activity':
$title = DI::l10n()->t('%s\'s timeline', $owner['name']);
$selfUri .= $filter;
break;
case 'posts':
$title = DI::l10n()->t('%s\'s posts', $owner['name']);
break;
case 'comments':
$title = DI::l10n()->t('%s\'s comments', $owner['name']);
$selfUri .= $filter;
break;
}
$selfUri = "/dfrn_poll/" . $owner["nick"];
$attributes = ["uri" => "https://friendi.ca", "version" => FRIENDICA_VERSION . "-" . DB_UPDATE_VERSION];
XML::addElement($doc, $root, "generator", FRIENDICA_PLATFORM, $attributes);
XML::addElement($doc, $root, "id", DI::baseUrl() . "/profile/" . $owner["nick"]);
XML::addElement($doc, $root, "title", $title);
XML::addElement($doc, $root, "subtitle", sprintf("Updates from %s on %s", $owner["name"], DI::config()->get('config', 'sitename')));
XML::addElement($doc, $root, "logo", User::getAvatarUrl($owner, Proxy::SIZE_SMALL));
XML::addElement($doc, $root, "updated", DateTimeFormat::utcNow(DateTimeFormat::ATOM));
$author = self::addAuthor($doc, $owner, true);
$root->appendChild($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
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/// $attributes = array("href" => DI::baseUrl()."/sup",
/// "rel" => "http://api.friendfeed.com/2008/03#sup",
/// "type" => "application/json");
/// XML::addElement($doc, $root, "link", "", $attributes);
self::hublinks($doc, $root, $owner["nick"]);
$attributes = ["href" => DI::baseUrl() . "/salmon/" . $owner["nick"], "rel" => "salmon"];
XML::addElement($doc, $root, "link", "", $attributes);
$attributes = ["href" => DI::baseUrl() . "/salmon/" . $owner["nick"], "rel" => "http://salmon-protocol.org/ns/salmon-replies"];
XML::addElement($doc, $root, "link", "", $attributes);
$attributes = ["href" => DI::baseUrl() . "/salmon/" . $owner["nick"], "rel" => "http://salmon-protocol.org/ns/salmon-mention"];
XML::addElement($doc, $root, "link", "", $attributes);
$attributes = ["href" => DI::baseUrl() . $selfUri, "rel" => "self", "type" => "application/atom+xml"];
XML::addElement($doc, $root, "link", "", $attributes);
if ($owner['contact-type'] == Contact::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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* Add the link to the push hubs to the XML document
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*
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* @param DOMDocument $doc XML document
* @param object $root XML root element where the hub links are added
* @param object $nick nick
* @return void
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
public static function hublinks(DOMDocument $doc, $root, $nick)
{
$h = DI::baseUrl() . '/pubsubhubbub/'.$nick;
XML::addElement($doc, $root, "link", "", ["href" => $h, "rel" => "hub"]);
}
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/**
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* Adds attachment data to the XML document
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*
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* @param DOMDocument $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
* @return void
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
public static function getAttachment(DOMDocument $doc, $root, $item)
{
$siteinfo = BBCode::getAttachedData($item["body"]);
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switch ($siteinfo["type"]) {
case 'photo':
if (!empty($siteinfo["image"])) {
$imgdata = Images::getInfoFromURLCached($siteinfo["image"]);
if ($imgdata) {
$attributes = ["rel" => "enclosure",
"href" => $siteinfo["image"],
"type" => $imgdata["mime"],
"length" => intval($imgdata["size"])];
XML::addElement($doc, $root, "link", "", $attributes);
}
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}
break;
case 'video':
$attributes = ["rel" => "enclosure",
"href" => $siteinfo["url"],
"type" => "text/html; charset=UTF-8",
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"length" => "0",
"title" => ($siteinfo["title"] ?? '') ?: $siteinfo["url"],
];
XML::addElement($doc, $root, "link", "", $attributes);
break;
default:
break;
}
if (!DI::config()->get('system', 'ostatus_not_attach_preview') && ($siteinfo["type"] != "photo") && isset($siteinfo["image"])) {
$imgdata = Images::getInfoFromURLCached($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", "", $attributes);
}
}
foreach (Post\Media::getByURIId($item['uri-id'], [Post\Media::DOCUMENT, Post\Media::TORRENT, Post\Media::UNKNOWN]) as $attachment) {
$attributes = ['rel' => 'enclosure',
'href' => $attachment['url'],
'type' => $attachment['mimetype']];
if (!empty($attachment['size'])) {
$attributes['length'] = intval($attachment['size']);
}
if (!empty($attachment['description'])) {
$attributes['title'] = $attachment['description'];
}
XML::addElement($doc, $root, 'link', '', $attributes);
}
}
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/**
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* Adds the author element to the XML document
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*
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* @param DOMDocument $doc XML document
* @param array $owner Contact data of the poster
* @param bool $show_profile Whether to show profile
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*
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* @return \DOMElement author element
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
private static function addAuthor(DOMDocument $doc, array $owner, $show_profile = true)
{
$profile = DBA::selectFirst('profile', ['homepage', 'publish'], ['uid' => $owner['uid']]);
$author = $doc->createElement("author");
XML::addElement($doc, $author, "id", $owner["url"]);
if ($owner['contact-type'] == Contact::TYPE_COMMUNITY) {
XML::addElement($doc, $author, "activity:object-type", Activity\ObjectType::GROUP);
} else {
XML::addElement($doc, $author, "activity:object-type", Activity\ObjectType::PERSON);
}
XML::addElement($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, $author, "summary", BBCode::convertForUriId($owner['uri-id'], $owner["about"], BBCode::OSTATUS));
}
$attributes = ["rel" => "alternate", "type" => "text/html", "href" => $owner["url"]];
XML::addElement($doc, $author, "link", "", $attributes);
$attributes = [
"rel" => "avatar",
"type" => "image/jpeg", // To-Do?
"media:width" => Proxy::PIXEL_SMALL,
"media:height" => Proxy::PIXEL_SMALL,
"href" => User::getAvatarUrl($owner, Proxy::SIZE_SMALL)];
XML::addElement($doc, $author, "link", "", $attributes);
if (isset($owner["thumb"])) {
$attributes = [
"rel" => "avatar",
"type" => "image/jpeg", // To-Do?
"media:width" => Proxy::PIXEL_THUMB,
"media:height" => Proxy::PIXEL_THUMB,
"href" => User::getAvatarUrl($owner, Proxy::SIZE_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, $author, "poco:note", BBCode::convertForUriId($owner['uri-id'], $owner["about"], BBCode::OSTATUS));
if (trim($owner["location"]) != "") {
$element = $doc->createElement("poco:address");
XML::addElement($doc, $element, "poco:formatted", $owner["location"]);
$author->appendChild($element);
}
}
if (DBA::isResult($profile) && !$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" => DI::baseUrl() . "/profile/" . $owner["nick"] . "/contacts/followers"]);
XML::addElement($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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* 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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*/
public static function constructVerb(array $item)
{
if (!empty($item['verb'])) {
return $item['verb'];
}
return Activity::POST;
}
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/**
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* 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(array $item)
{
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if (!empty($item['object-type']) && in_array($item['object-type'], [Activity\ObjectType::NOTE, Activity\ObjectType::COMMENT])) {
return $item['object-type'];
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}
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return Activity\ObjectType::NOTE;
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}
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/**
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* Adds an entry element to the XML document
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*
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* @param DOMDocument $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 \DOMElement Entry element
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
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*/
private static function entry(DOMDocument $doc, array $item, array $owner, $toplevel = false)
{
if ($item["verb"] == Activity::LIKE) {
return self::likeEntry($doc, $item, $owner, $toplevel);
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} elseif (in_array($item["verb"], [Activity::FOLLOW, Activity::O_UNFOLLOW])) {
return self::followEntry($doc, $item, $owner, $toplevel);
} else {
return self::noteEntry($doc, $item, $owner, $toplevel);
}
}
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/**
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* Adds an entry element with a "like"
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*
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* @param DOMDocument $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 \DOMElement Entry element with "like"
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
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*/
private static function likeEntry(DOMDocument $doc, array $item, array $owner, $toplevel)
{
if (($item['gravity'] != GRAVITY_PARENT) && (Strings::normaliseLink($item["author-link"]) != Strings::normaliseLink($owner["url"]))) {
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Logger::info("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.");
}
$entry = self::entryHeader($doc, $owner, $item, $toplevel);
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$verb = ActivityNamespace::ACTIVITY_SCHEMA . "favorite";
self::entryContent($doc, $entry, $item, $owner, "Favorite", $verb, false);
$parent = Post::selectFirst([], ['uri' => $item["thr-parent"], 'uid' => $item["uid"]]);
if (DBA::isResult($parent)) {
$as_object = $doc->createElement("activity:object");
XML::addElement($doc, $as_object, "activity:object-type", self::constructObjecttype($parent));
self::entryContent($doc, $as_object, $parent, $owner, "New entry");
$entry->appendChild($as_object);
}
self::entryFooter($doc, $entry, $item, $owner);
return $entry;
}
/**
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* Adds the person object element to the XML document
*
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* @param DOMDocument $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(DOMDocument $doc, array $owner, array $contact)
{
$object = $doc->createElement("activity:object");
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XML::addElement($doc, $object, "activity:object-type", Activity\ObjectType::PERSON);
if ($contact['network'] == Protocol::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" => 300,
"media:height" => 300,
"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;
}
/**
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* Adds a follow/unfollow entry element
*
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* @param DOMDocument $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)?
*
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* @return \DOMElement Entry element
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
*/
private static function followEntry(DOMDocument $doc, array $item, array $owner, $toplevel)
{
$item["id"] = $item['parent'] = 0;
$item["created"] = $item["edited"] = date("c");
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$item["private"] = Item::PRIVATE;
$contact = Contact::getByURL($item['follow']);
$item['follow'] = $contact['url'];
if ($contact['alias']) {
$item['follow'] = $contact['alias'];
} else {
$contact['alias'] = $contact['url'];
}
$condition = ['uid' => $owner['uid'], 'nurl' => Strings::normaliseLink($contact["url"])];
$user_contact = DBA::selectFirst('contact', ['id'], $condition);
if (DBA::isResult($user_contact)) {
$connect_id = $user_contact['id'];
} else {
$connect_id = 0;
}
if ($item['verb'] == Activity::FOLLOW) {
$message = DI::l10n()->t('%s is now following %s.');
$title = DI::l10n()->t('following');
$action = "subscription";
} else {
$message = DI::l10n()->t('%s stopped following %s.');
$title = DI::l10n()->t('stopped following');
$action = "unfollow";
}
$item["uri"] = $item['parent-uri'] = $item['thr-parent']
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= 'tag:' . DI::baseUrl()->getHostname().
','.date('Y-m-d').':'.$action.':'.$owner['uid'].
':person:'.$connect_id.':'.$item['created'];
$item["body"] = sprintf($message, $owner["nick"], $contact["nick"]);
$entry = self::entryHeader($doc, $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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* Adds a regular entry element
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*
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* @param DOMDocument $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 \DOMElement Entry element
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
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*/
private static function noteEntry(DOMDocument $doc, array $item, array $owner, $toplevel)
{
if (($item['gravity'] != GRAVITY_PARENT) && (Strings::normaliseLink($item["author-link"]) != Strings::normaliseLink($owner["url"]))) {
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Logger::info("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.");
}
if (!$toplevel) {
if (!empty($item['title'])) {
$title = BBCode::convertForUriId($item['uri-id'], $item['title'], BBCode::OSTATUS);
} else {
$title = sprintf("New note by %s", $owner["nick"]);
}
} else {
$title = sprintf("New comment by %s", $owner["nick"]);
}
$entry = self::entryHeader($doc, $owner, $item, $toplevel);
XML::addElement($doc, $entry, "activity:object-type", Activity\ObjectType::NOTE);
self::entryContent($doc, $entry, $item, $owner, $title, '', true);
self::entryFooter($doc, $entry, $item, $owner, true);
return $entry;
}
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/**
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* Adds a header element to the XML document
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*
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* @param DOMDocument $doc XML document
* @param array $owner Contact data of the poster
* @param array $item
* @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
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*
* @return \DOMElement The entry element where the elements are added
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
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*/
public static function entryHeader(DOMDocument $doc, array $owner, array $item, $toplevel)
{
if (!$toplevel) {
$entry = $doc->createElement("entry");
if ($owner['contact-type'] == Contact::TYPE_COMMUNITY) {
$contact = Contact::getByURL($item['author-link']) ?: $owner;
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$contact['nickname'] = $contact['nickname'] ?? $contact['nick'];
$author = self::addAuthor($doc, $contact, false);
$entry->appendChild($author);
}
} else {
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$entry = $doc->createElementNS(ActivityNamespace::ATOM1, "entry");
$entry->setAttribute("xmlns:thr", ActivityNamespace::THREAD);
$entry->setAttribute("xmlns:georss", ActivityNamespace::GEORSS);
$entry->setAttribute("xmlns:activity", ActivityNamespace::ACTIVITY);
$entry->setAttribute("xmlns:media", ActivityNamespace::MEDIA);
$entry->setAttribute("xmlns:poco", ActivityNamespace::POCO);
$entry->setAttribute("xmlns:ostatus", ActivityNamespace::OSTATUS);
$entry->setAttribute("xmlns:statusnet", ActivityNamespace::STATUSNET);
$entry->setAttribute("xmlns:mastodon", ActivityNamespace::MASTODON);
$author = self::addAuthor($doc, $owner);
$entry->appendChild($author);
}
return $entry;
}
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/**
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* Adds elements to the XML document
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*
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* @param DOMDocument $doc XML document
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* @param \DOMElement $entry Entry element where the content is added
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* @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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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
private static function entryContent(DOMDocument $doc, \DOMElement $entry, array $item, array $owner, $title, $verb = "", $complete = true)
{
if ($verb == "") {
$verb = self::constructVerb($item);
}
XML::addElement($doc, $entry, "id", $item["uri"]);
XML::addElement($doc, $entry, "title", html_entity_decode($title, ENT_QUOTES, 'UTF-8'));
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$body = Post\Media::addAttachmentsToBody($item['uri-id'], $item['body']);
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$body = self::formatPicturePost($body, $item['uri-id']);
if (!empty($item['title'])) {
$body = "[b]".$item['title']."[/b]\n\n".$body;
}
$body = BBCode::convertForUriId($item['uri-id'], $body, BBCode::OSTATUS);
XML::addElement($doc, $entry, "content", $body, ["type" => "html"]);
XML::addElement($doc, $entry, "link", "", ["rel" => "alternate", "type" => "text/html",
"href" => DI::baseUrl()."/display/".$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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* Adds the elements at the foot of an entry to the XML document
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*
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* @param DOMDocument $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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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
private static function entryFooter(DOMDocument $doc, $entry, array $item, array $owner, $complete = true)
{
$mentioned = [];
if ($item['gravity'] != GRAVITY_PARENT) {
$parent = Post::selectFirst(['guid', 'author-link', 'owner-link'], ['id' => $item['parent']]);
$thrparent = Post::selectFirst(['guid', 'author-link', 'owner-link', 'plink'], ['uid' => $owner['uid'], 'uri' => $item['thr-parent']]);
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if (DBA::isResult($thrparent)) {
$mentioned[$thrparent['author-link']] = $thrparent['author-link'];
$mentioned[$thrparent['owner-link']] = $thrparent['owner-link'];
$parent_plink = $thrparent['plink'];
} elseif (DBA::isResult($parent)) {
$mentioned[$parent['author-link']] = $parent['author-link'];
$mentioned[$parent['owner-link']] = $parent['owner-link'];
$parent_plink = DI::baseUrl() . '/display/' . $parent['guid'];
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} else {
DI::logger()->notice('Missing parent and thr-parent for child item', ['item' => $item]);
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}
if (isset($parent_plink)) {
$attributes = [
'ref' => $item['thr-parent'],
'href' => $parent_plink];
XML::addElement($doc, $entry, 'thr:in-reply-to', '', $attributes);
$attributes = [
'rel' => 'related',
'href' => $parent_plink];
XML::addElement($doc, $entry, 'link', '', $attributes);
}
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}
if (intval($item['parent']) > 0) {
$conversation_href = $conversation_uri = str_replace('/objects/', '/context/', $item['thr-parent']);
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if (isset($parent_item)) {
$conversation = DBA::selectFirst('conversation', ['conversation-uri', 'conversation-href'], ['item-uri' => $parent_item]);
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if (DBA::isResult($conversation)) {
if ($conversation['conversation-uri'] != '') {
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$conversation_uri = $conversation['conversation-uri'];
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}
if ($conversation['conversation-href'] != '') {
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$conversation_href = $conversation['conversation-href'];
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}
}
}
XML::addElement($doc, $entry, "link", "", ["rel" => "ostatus:conversation", "href" => $conversation_href]);
$attributes = [
"href" => $conversation_href,
"local_id" => $item['parent'],
"ref" => $conversation_uri];
XML::addElement($doc, $entry, "ostatus:conversation", $conversation_uri, $attributes);
}
// uri-id isn't present for follow entry pseudo-items
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$tags = Tag::getByURIId($item['uri-id'] ?? 0);
foreach ($tags as $tag) {
$mentioned[$tag['url']] = $tag['url'];
}
// 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 $mention) {
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$contact = Contact::getByURL($mention, false, ['contact-type']);
if (!empty($contact) && ($contact['contact-type'] == Contact::TYPE_COMMUNITY)) {
XML::addElement($doc, $entry, "link", "",
[
"rel" => "mentioned",
"ostatus:object-type" => Activity\ObjectType::GROUP,
"href" => $mention]
);
} else {
XML::addElement($doc, $entry, "link", "",
[
"rel" => "mentioned",
"ostatus:object-type" => Activity\ObjectType::PERSON,
"href" => $mention]
);
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}
}
if ($owner['contact-type'] == Contact::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'] != 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, $entry, "mastodon:scope", "public");
}
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foreach ($tags as $tag) {
if ($tag['type'] == Tag::HASHTAG) {
XML::addElement($doc, $entry, "category", "", ["term" => $tag['name']]);
}
}
self::getAttachment($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", $item["coord"]);
}
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XML::addElement($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
*
* @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 $nocache Wether to bypass caching
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*
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* @return string XML feed
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
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*/
public static function feed($owner_nick, &$last_update, $max_items = 300, $filter = 'activity', $nocache = false)
{
$stamp = microtime(true);
$owner = User::getOwnerDataByNick($owner_nick);
if (!$owner) {
return;
}
$cachekey = "ostatus:feed:" . $owner_nick . ":" . $filter . ":" . $last_update;
$previous_created = $last_update;
// Don't cache when the last item was posted less then 15 minutes ago (Cache duration)
if ((time() - strtotime($owner['last-item'])) < 15*60) {
$result = DI::cache()->get($cachekey);
if (!$nocache && !is_null($result)) {
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Logger::info('Feed duration: ' . number_format(microtime(true) - $stamp, 3) . ' - ' . $owner_nick . ' - ' . $filter . ' - ' . $previous_created . ' (cached)');
$last_update = $result['last_update'];
return $result['feed'];
}
}
if (!strlen($last_update)) {
$last_update = 'now -30 days';
}
$check_date = DateTimeFormat::utc($last_update);
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$authorid = Contact::getIdForURL($owner["url"]);
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$condition = ["`uid` = ? AND `received` > ? AND NOT `deleted`
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AND `private` != ? AND `visible` AND `wall` AND `parent-network` IN (?, ?)",
$owner["uid"], $check_date, Item::PRIVATE, Protocol::OSTATUS, Protocol::DFRN];
if ($filter === 'comments') {
$condition[0] .= " AND `object-type` = ? ";
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$condition[] = Activity\ObjectType::COMMENT;
}
if ($owner['contact-type'] != Contact::TYPE_COMMUNITY) {
$condition[0] .= " AND `contact-id` = ? AND `author-id` = ?";
$condition[] = $owner["id"];
$condition[] = $authorid;
}
$params = ['order' => ['received' => true], 'limit' => $max_items];
if ($filter === 'posts') {
$ret = Post::selectThread([], $condition, $params);
} else {
$ret = Post::select([], $condition, $params);
}
$items = Post::toArray($ret);
$doc = new DOMDocument('1.0', 'utf-8');
$doc->formatOutput = true;
$root = self::addHeader($doc, $owner, $filter);
foreach ($items as $item) {
if (DI::config()->get('system', 'ostatus_debug')) {
$item['body'] .= '🍼';
}
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if (in_array($item["verb"], [Activity::FOLLOW, Activity::O_UNFOLLOW, Activity::LIKE])) {
continue;
}
$entry = self::entry($doc, $item, $owner, false);
$root->appendChild($entry);
if ($last_update < $item['created']) {
$last_update = $item['created'];
}
}
$feeddata = trim($doc->saveXML());
$msg = ['feed' => $feeddata, 'last_update' => $last_update];
DI::cache()->set($cachekey, $msg, Duration::QUARTER_HOUR);
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Logger::info('Feed duration: ' . number_format(microtime(true) - $stamp, 3) . ' - ' . $owner_nick . ' - ' . $filter . ' - ' . $previous_created);
return $feeddata;
}
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/**
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* 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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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
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*/
public static function salmon(array $item, array $owner)
{
$doc = new DOMDocument('1.0', 'utf-8');
$doc->formatOutput = true;
if (DI::config()->get('system', 'ostatus_debug')) {
$item['body'] .= '🐟';
}
$entry = self::entry($doc, $item, $owner, true);
$doc->appendChild($entry);
return trim($doc->saveXML());
}
/**
* Checks if the given contact url does support OStatus
*
* @param string $url profile url
* @return boolean
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
*/
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public static function isSupportedByContactUrl($url)
{
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$probe = Probe::uri($url, Protocol::OSTATUS);
return $probe['network'] == Protocol::OSTATUS;
}
}