src/Model/Contact/Introduction.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2021, 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          *
  41          * @throws HTTPException\InternalServerErrorException
  42          * @throws HTTPException\NotFoundException
  43          * @throws \ImagickException
  44          */
  45         public static function confirm(Entity\Introduction $introduction): void
  46         {
  47                 DI::logger()->info('Confirming follower', ['cid' => $introduction->cid]);
  48
  49                 $contact = Contact::selectFirst([], ['id' => $introduction->cid, 'uid' => $introduction->uid]);
  50
  51                 if (!$contact) {
  52                         throw new HTTPException\NotFoundException('Contact record not found.');
  53                 }
  54
  55                 $newRelation = $contact['rel'];
  56                 $writable    = $contact['writable'];
  57
  58                 if (!empty($contact['protocol'])) {
  59                         $protocol = $contact['protocol'];
  60                 } else {
  61                         $protocol = $contact['network'];
  62                 }
  63
  64                 if ($protocol == Protocol::ACTIVITYPUB) {
  65                         ActivityPub\Transmitter::sendContactAccept($contact['url'], $contact['hub-verify'], $contact['uid']);
  66                 }
  67
  68                 if (in_array($protocol, [Protocol::DIASPORA, Protocol::ACTIVITYPUB])) {
  69                         if ($introduction->duplex) {
  70                                 $newRelation = Contact::FRIEND;
  71                         } else {
  72                                 $newRelation = Contact::FOLLOWER;
  73                         }
  74
  75                         if ($newRelation != Contact::FOLLOWER) {
  76                                 $writable = 1;
  77                         }
  78                 }
  79
  80                 $fields = [
  81                         'name-date' => DateTimeFormat::utcNow(),
  82                         'uri-date'  => DateTimeFormat::utcNow(),
  83                         'blocked'   => false,
  84                         'pending'   => false,
  85                         'protocol'  => $protocol,
  86                         'writable'  => $writable,
  87                         'hidden'    => $hidden ?? $contact['hidden'],
  88                         'rel'       => $newRelation,
  89                 ];
  90                 Contact::update($fields, ['id' => $contact['id']]);
  91
  92                 array_merge($contact, $fields);
  93
  94                 if ($newRelation == Contact::FRIEND) {
  95                         if ($protocol == Protocol::DIASPORA) {
  96                                 $ret = Diaspora::sendShare(User::getById($contact['uid']), $contact);
  97                                 DI::logger()->info('share returns', ['return' => $ret]);
  98                         } elseif ($protocol == Protocol::ACTIVITYPUB) {
  99                                 ActivityPub\Transmitter::sendActivity('Follow', $contact['url'], $contact['uid']);
 100                         }
 101                 }
 102         }
 103
 104         /**
 105          * Discards the introduction and sends a rejection message to AP contacts.
 106          *
 107          * @param Entity\Introduction $introduction
 108          *
 109          * @throws HTTPException\InternalServerErrorException
 110          * @throws \ImagickException
 111          */
 112         public static function discard(Entity\Introduction $introduction): void
 113         {
 114                 // If it is a friend suggestion, the contact is not a new friend but an existing friend
 115                 // that should not be deleted.
 116                 if (!$introduction->fid) {
 117                         // When the contact entry had been created just for that intro, we want to get rid of it now
 118                         $condition = [
 119                                 'id'      => $introduction->cid,
 120                                 'uid'     => $introduction->uid,
 121                                 'self'    => false,
 122                                 'pending' => true,
 123                                 'rel'     => [0, Contact::FOLLOWER]];
 124                         if (DI::dba()->exists('contact', $condition)) {
 125                                 Contact::remove($introduction->cid);
 126                         } else {
 127                                 Contact::update(['pending' => false], ['id' => $introduction->cid]);
 128                         }
 129                 }
 130
 131                 $contact = Contact::selectFirst([], ['id' => $introduction->cid, 'uid' => $introduction->uid]);
 132                 if (!empty($contact)) {
 133                         if (!empty($contact['protocol'])) {
 134                                 $protocol = $contact['protocol'];
 135                         } else {
 136                                 $protocol = $contact['network'];
 137                         }
 138
 139                         if ($protocol == Protocol::ACTIVITYPUB) {
 140                                 ActivityPub\Transmitter::sendContactReject($contact['url'], $contact['hub-verify'], $contact['uid']);
 141                         }
 142                 }
 143         }
 144 }