260 lines
7.6 KiB
PHP
260 lines
7.6 KiB
PHP
<?php
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/**
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* @file src/Model/APContact.php
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*/
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namespace Friendica\Model;
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use Friendica\BaseObject;
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use Friendica\Content\Text\HTML;
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use Friendica\Core\Logger;
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use Friendica\Database\DBA;
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use Friendica\Protocol\ActivityPub;
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use Friendica\Util\Network;
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use Friendica\Util\JsonLD;
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use Friendica\Util\DateTimeFormat;
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use Friendica\Util\Strings;
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class APContact extends BaseObject
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{
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/**
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* Resolves the profile url from the address by using webfinger
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*
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* @param string $addr profile address (user@domain.tld)
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* @return string url
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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*/
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private static function addrToUrl($addr)
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{
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$addr_parts = explode('@', $addr);
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if (count($addr_parts) != 2) {
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return false;
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}
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$webfinger = 'https://' . $addr_parts[1] . '/.well-known/webfinger?resource=acct:' . urlencode($addr);
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$curlResult = Network::curl($webfinger, false, $redirects, ['accept_content' => 'application/jrd+json,application/json']);
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if (!$curlResult->isSuccess() || empty($curlResult->getBody())) {
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return false;
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}
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$data = json_decode($curlResult->getBody(), true);
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if (empty($data['links'])) {
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return false;
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}
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foreach ($data['links'] as $link) {
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if (empty($link['href']) || empty($link['rel']) || empty($link['type'])) {
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continue;
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}
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if (($link['rel'] == 'self') && ($link['type'] == 'application/activity+json')) {
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return $link['href'];
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}
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}
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return false;
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}
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/**
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* Fetches a profile from a given url
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*
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* @param string $url profile url
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* @param boolean $update true = always update, false = never update, null = update when not found or outdated
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* @return array profile array
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* @throws \Friendica\Network\HTTPException\InternalServerErrorException
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* @throws \ImagickException
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*/
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public static function getByURL($url, $update = null)
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{
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if (empty($url)) {
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return false;
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}
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if (empty($update)) {
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if (is_null($update)) {
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$ref_update = DateTimeFormat::utc('now - 1 month');
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} else {
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$ref_update = DBA::NULL_DATETIME;
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}
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$apcontact = DBA::selectFirst('apcontact', [], ['url' => $url]);
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if (!DBA::isResult($apcontact)) {
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$apcontact = DBA::selectFirst('apcontact', [], ['alias' => $url]);
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}
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if (!DBA::isResult($apcontact)) {
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$apcontact = DBA::selectFirst('apcontact', [], ['addr' => $url]);
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}
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if (DBA::isResult($apcontact) && ($apcontact['updated'] > $ref_update)) {
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return $apcontact;
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}
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if (!is_null($update)) {
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return false;
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}
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}
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if (empty(parse_url($url, PHP_URL_SCHEME))) {
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$url = self::addrToUrl($url);
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if (empty($url)) {
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return false;
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}
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}
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$data = ActivityPub::fetchContent($url);
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if (empty($data)) {
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return false;
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}
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$compacted = JsonLD::compact($data);
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if (empty($compacted['@id'])) {
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return false;
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}
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$apcontact = [];
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$apcontact['url'] = $compacted['@id'];
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$apcontact['uuid'] = JsonLD::fetchElement($compacted, 'diaspora:guid');
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$apcontact['type'] = str_replace('as:', '', JsonLD::fetchElement($compacted, '@type'));
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$apcontact['following'] = JsonLD::fetchElement($compacted, 'as:following', '@id');
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$apcontact['followers'] = JsonLD::fetchElement($compacted, 'as:followers', '@id');
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$apcontact['inbox'] = JsonLD::fetchElement($compacted, 'ldp:inbox', '@id');
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self::unarchiveInbox($apcontact['inbox'], false);
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$apcontact['outbox'] = JsonLD::fetchElement($compacted, 'as:outbox', '@id');
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$apcontact['sharedinbox'] = '';
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if (!empty($compacted['as:endpoints'])) {
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$apcontact['sharedinbox'] = JsonLD::fetchElement($compacted['as:endpoints'], 'as:sharedInbox', '@id');
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self::unarchiveInbox($apcontact['sharedinbox'], true);
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}
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$apcontact['nick'] = JsonLD::fetchElement($compacted, 'as:preferredUsername');
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$apcontact['name'] = JsonLD::fetchElement($compacted, 'as:name');
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if (empty($apcontact['name'])) {
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$apcontact['name'] = $apcontact['nick'];
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}
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$apcontact['about'] = HTML::toBBCode(JsonLD::fetchElement($compacted, 'as:summary'));
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$apcontact['photo'] = JsonLD::fetchElement($compacted, 'as:icon', '@id');
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if (is_array($apcontact['photo']) || !empty($compacted['as:icon']['as:url']['@id'])) {
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$apcontact['photo'] = JsonLD::fetchElement($compacted['as:icon'], 'as:url', '@id');
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}
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$apcontact['alias'] = JsonLD::fetchElement($compacted, 'as:url', '@id');
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if (is_array($apcontact['alias'])) {
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$apcontact['alias'] = JsonLD::fetchElement($compacted['as:url'], 'as:href', '@id');
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}
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if (empty($apcontact['url']) || empty($apcontact['inbox'])) {
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return false;
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}
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$parts = parse_url($apcontact['url']);
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unset($parts['scheme']);
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unset($parts['path']);
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$apcontact['addr'] = $apcontact['nick'] . '@' . str_replace('//', '', Network::unparseURL($parts));
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$apcontact['pubkey'] = trim(JsonLD::fetchElement($compacted, 'w3id:publicKey', 'w3id:publicKeyPem'));
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$apcontact['manually-approve'] = (int)JsonLD::fetchElement($compacted, 'as:manuallyApprovesFollowers');
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// To-Do
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// Unhandled
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// @context, tag, attachment, image, nomadicLocations, signature, following, followers, featured, movedTo, liked
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// Unhandled from Misskey
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// sharedInbox, isCat
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// Unhandled from Kroeg
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// kroeg:blocks, updated
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// Check if the address is resolvable
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if (self::addrToUrl($apcontact['addr']) == $apcontact['url']) {
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$parts = parse_url($apcontact['url']);
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unset($parts['path']);
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$apcontact['baseurl'] = Network::unparseURL($parts);
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} else {
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$apcontact['addr'] = null;
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$apcontact['baseurl'] = null;
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}
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if ($apcontact['url'] == $apcontact['alias']) {
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$apcontact['alias'] = null;
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}
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$apcontact['updated'] = DateTimeFormat::utcNow();
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DBA::update('apcontact', $apcontact, ['url' => $url], true);
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// Update some data in the contact table with various ways to catch them all
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$contact_fields = ['name' => $apcontact['name'], 'about' => $apcontact['about'], 'alias' => $apcontact['alias']];
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// Fetch the type and match it with the contact type
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$contact_types = array_keys(ActivityPub::ACCOUNT_TYPES, $apcontact['type']);
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if (!empty($contact_types)) {
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$contact_type = array_pop($contact_types);
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if (is_int($contact_type)) {
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$contact_fields['contact-type'] = $contact_type;
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if ($contact_fields['contact-type'] != User::ACCOUNT_TYPE_COMMUNITY) {
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// Resetting the 'forum' and 'prv' field when it isn't a forum
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$contact_fields['forum'] = false;
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$contact_fields['prv'] = false;
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} else {
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// Otherwise set the corresponding forum type
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$contact_fields['forum'] = !$apcontact['manually-approve'];
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$contact_fields['prv'] = $apcontact['manually-approve'];
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}
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}
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}
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DBA::update('contact', $contact_fields, ['nurl' => Strings::normaliseLink($url)]);
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$contacts = DBA::select('contact', ['uid', 'id'], ['nurl' => Strings::normaliseLink($url)]);
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while ($contact = DBA::fetch($contacts)) {
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Contact::updateAvatar($apcontact['photo'], $contact['uid'], $contact['id']);
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}
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DBA::close($contacts);
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// Update the gcontact table
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// These two fields don't exist in the gcontact table
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unset($contact_fields['forum']);
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unset($contact_fields['prv']);
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DBA::update('gcontact', $contact_fields, ['nurl' => Strings::normaliseLink($url)]);
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Logger::log('Updated profile for ' . $url, Logger::DEBUG);
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return $apcontact;
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}
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/**
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* Unarchive inboxes
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*
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* @param string $url inbox url
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*/
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private static function unarchiveInbox($url, $shared)
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{
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if (empty($url)) {
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return;
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}
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$now = DateTimeFormat::utcNow();
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$fields = ['archive' => false, 'success' => $now, 'shared' => $shared];
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if (!DBA::exists('inbox-status', ['url' => $url])) {
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$fields = array_merge($fields, ['url' => $url, 'created' => $now]);
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DBA::insert('inbox-status', $fields);
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} else {
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DBA::update('inbox-status', $fields, ['url' => $url]);
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}
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}
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}
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