src/Model/Contact/Introduction.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2023, the Friendica project
   4  *
   5  * @license GNU AGPL version 3 or any later version
   6  *
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as
   9  * published by the Free Software Foundation, either version 3 of the
  10  * License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19  *
  20  */
  21
  22 namespace Friendica\Model\Contact;
  23
  24 use Friendica\Contact\Introduction\Entity;
  25 use Friendica\Core\Protocol;
  26 use Friendica\DI;
  27 use Friendica\Network\HTTPException;
  28 use Friendica\Model\Contact;
  29 use Friendica\Model\User;
  30 use Friendica\Protocol\ActivityPub;
  31 use Friendica\Protocol\Diaspora;
  32 use Friendica\Util\DateTimeFormat;
  33
  34 class Introduction
  35 {
  36         /**
  37          * Confirms a follow request and sends a notice to the remote contact.
  38          *
  39          * @param Entity\Introduction $introduction
  40          * @param bool                $duplex       Is it a follow back?
  41          * @param bool|null           $hidden       Should this contact be hidden? null = no change
  42          *
  43          * @throws HTTPException\InternalServerErrorException
  44          * @throws HTTPException\NotFoundException
  45          * @throws \ImagickException
  46          */
  47         public static function confirm(Entity\Introduction $introduction, bool $duplex = false, ?bool $hidden = null): void
  48         {
  49                 DI::logger()->info('Confirming follower', ['cid' => $introduction->cid]);
  50
  51                 $contact = Contact::selectFirst([], ['id' => $introduction->cid, 'uid' => $introduction->uid]);
  52
  53                 if (!$contact) {
  54                         throw new HTTPException\NotFoundException('Contact record not found.');
  55                 }
  56
  57                 $newRelation = $contact['rel'];
  58                 $writable    = $contact['writable'];
  59
  60                 if (!empty($contact['protocol'])) {
  61                         $protocol = $contact['protocol'];
  62                 } else {
  63                         $protocol = $contact['network'];
  64                 }
  65
  66                 if ($protocol == Protocol::ACTIVITYPUB) {
  67                         ActivityPub\Transmitter::sendContactAccept($contact['url'], $contact['hub-verify'], $contact['uid']);
  68                 }
  69
  70                 if (in_array($protocol, [Protocol::DIASPORA, Protocol::ACTIVITYPUB])) {
  71                         if ($duplex) {
  72                                 $newRelation = Contact::FRIEND;
  73                         } else {
  74                                 $newRelation = Contact::FOLLOWER;
  75                         }
  76
  77                         if ($newRelation != Contact::FOLLOWER) {
  78                                 $writable = 1;
  79                         }
  80                 }
  81
  82                 $fields = [
  83                         'name-date' => DateTimeFormat::utcNow(),
  84                         'uri-date'  => DateTimeFormat::utcNow(),
  85                         'blocked'   => false,
  86                         'pending'   => false,
  87                         'protocol'  => $protocol,
  88                         'writable'  => $writable,
  89                         'hidden'    => $hidden ?? $contact['hidden'],
  90                         'rel'       => $newRelation,
  91                 ];
  92                 Contact::update($fields, ['id' => $contact['id']]);
  93
  94                 array_merge($contact, $fields);
  95
  96                 if ($newRelation == Contact::FRIEND) {
  97                         if ($protocol == Protocol::DIASPORA) {
  98                                 $ret = Diaspora::sendShare(User::getById($contact['uid']), $contact);
  99                                 DI::logger()->info('share returns', ['return' => $ret]);
 100                         } elseif ($protocol == Protocol::ACTIVITYPUB) {
 101                                 ActivityPub\Transmitter::sendActivity('Follow', $contact['url'], $contact['uid']);
 102                         }
 103                 }
 104         }
 105
 106         /**
 107          * Discards the introduction and sends a rejection message to AP contacts.
 108          *
 109          * @param Entity\Introduction $introduction
 110          *
 111          * @throws HTTPException\InternalServerErrorException
 112          * @throws \ImagickException
 113          */
 114         public static function discard(Entity\Introduction $introduction): void
 115         {
 116                 $contact = Contact::selectFirst([], ['id' => $introduction->cid, 'uid' => $introduction->uid]);
 117                 if (!empty($contact)) {
 118                         if (!empty($contact['protocol'])) {
 119                                 $protocol = $contact['protocol'];
 120                         } else {
 121                                 $protocol = $contact['network'];
 122                         }
 123
 124                         if ($protocol == Protocol::ACTIVITYPUB) {
 125                                 $owner = User::getOwnerDataById($contact['uid']);
 126                                 if ($owner) {
 127                                         ActivityPub\Transmitter::sendContactReject($contact['url'], $contact['hub-verify'], $owner);
 128                                 }
 129                         }
 130                 }
 131         }
 132 }