friendica/src/Model/FContact.php

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<?php
/**
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* @copyright Copyright (C) 2010-2021, the Friendica project
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*
* @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/>.
*
*/
namespace Friendica\Model;
use Friendica\Core\Logger;
use Friendica\Core\Protocol;
use Friendica\Database\DBA;
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use Friendica\DI;
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use Friendica\Network\Probe;
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use Friendica\Protocol\Activity;
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use Friendica\Util\DateTimeFormat;
use Friendica\Util\Strings;
class FContact
{
/**
* Fetches data for a given handle
*
* @param string $handle The handle
* @param boolean $update true = always update, false = never update, null = update when not found or outdated
*
* @return array the queried data
* @throws \Friendica\Network\HTTPException\InternalServerErrorException
* @throws \ImagickException
*/
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public static function getByURL($handle, $update = null, $network = Protocol::DIASPORA)
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{
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$person = DBA::selectFirst('fcontact', [], ['network' => $network, 'addr' => $handle]);
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if (!DBA::isResult($person)) {
$urls = [$handle, str_replace('http://', 'https://', $handle), Strings::normaliseLink($handle)];
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$person = DBA::selectFirst('fcontact', [], ['network' => $network, 'url' => $urls]);
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}
if (DBA::isResult($person)) {
Logger::debug('In cache', ['person' => $person]);
if (is_null($update)) {
// update record occasionally so it doesn't get stale
$d = strtotime($person["updated"]." +00:00");
if ($d < strtotime("now - 14 days")) {
$update = true;
}
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if (empty($person['guid']) || empty($person['uri-id'])) {
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$update = true;
}
}
} elseif (is_null($update)) {
$update = !DBA::isResult($person);
} else {
$person = [];
}
if ($update) {
Logger::info('create or refresh', ['handle' => $handle]);
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$r = Probe::uri($handle, $network);
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// Note that Friendica contacts will return a "Diaspora person"
// if Diaspora connectivity is enabled on their server
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if ($r && ($r["network"] === $network)) {
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self::updateFContact($r);
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$person = self::getByURL($handle, false, $network);
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}
}
return $person;
}
/**
* Updates the fcontact table
*
* @param array $arr The fcontact data
* @throws \Exception
*/
private static function updateFContact($arr)
{
$fields = ['name' => $arr["name"], 'photo' => $arr["photo"],
'request' => $arr["request"], 'nick' => $arr["nick"],
'addr' => strtolower($arr["addr"]), 'guid' => $arr["guid"],
'batch' => $arr["batch"], 'notify' => $arr["notify"],
'poll' => $arr["poll"], 'confirm' => $arr["confirm"],
'alias' => $arr["alias"], 'pubkey' => $arr["pubkey"],
'uri-id' => ItemURI::insert(['uri' => $arr['url'], 'guid' => $arr['guid']]),
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'updated' => DateTimeFormat::utcNow()];
$condition = ['url' => $arr["url"], 'network' => $arr["network"]];
DBA::update('fcontact', $fields, $condition, true);
}
/**
* get a url (scheme://domain.tld/u/user) from a given Diaspora*
* fcontact guid
*
* @param mixed $fcontact_guid Hexadecimal string guid
*
* @return string the contact url or null
* @throws \Exception
*/
public static function getUrlByGuid($fcontact_guid)
{
Logger::info('fcontact', ['guid' => $fcontact_guid]);
$r = q(
"SELECT `url` FROM `fcontact` WHERE `url` != '' AND `network` = '%s' AND `guid` = '%s'",
DBA::escape(Protocol::DIASPORA),
DBA::escape($fcontact_guid)
);
if (DBA::isResult($r)) {
return $r[0]['url'];
}
return null;
}
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/**
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* Suggest a given contact to a given user from a given contact
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*
* @param integer $uid
* @param integer $cid
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* @param integer $from_cid
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* @return bool Was the adding successful?
*/
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public static function addSuggestion(int $uid, int $cid, int $from_cid, string $note = '')
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{
$owner = User::getOwnerDataById($uid);
$contact = Contact::getById($cid);
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$from_contact = Contact::getById($from_cid);
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if (DBA::exists('contact', ['nurl' => Strings::normaliseLink($contact['url']), 'uid' => $uid])) {
return false;
}
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$fcontact = self::getByURL($contact['url'], null, $contact['network']);
if (empty($fcontact)) {
Logger::warning('FContact had not been found', ['fcontact' => $contact['url']]);
return false;
}
$fid = $fcontact['id'];
// Quit if we already have an introduction for this person
if (DBA::exists('intro', ['uid' => $uid, 'fid' => $fid])) {
return false;
}
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$suggest = [];
$suggest['uid'] = $uid;
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$suggest['cid'] = $from_cid;
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$suggest['url'] = $contact['url'];
$suggest['name'] = $contact['name'];
$suggest['photo'] = $contact['photo'];
$suggest['request'] = $contact['request'];
$suggest['title'] = '';
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$suggest['body'] = $note;
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$hash = Strings::getRandomHex();
$fields = ['uid' => $suggest['uid'], 'fid' => $fid, 'contact-id' => $suggest['cid'],
'note' => $suggest['body'], 'hash' => $hash, 'datetime' => DateTimeFormat::utcNow(), 'blocked' => false];
DBA::insert('intro', $fields);
notification([
'type' => Notification\Type::SUGGEST,
'otype' => Notification\ObjectType::INTRO,
'verb' => Activity::REQ_FRIEND,
'uid' => $owner['uid'],
'cid' => $from_contact['uid'],
'item' => $suggest,
'link' => DI::baseUrl().'/notifications/intros',
]);
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return true;
}
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}