src/Module/Api/Twitter/ContactEndpoint.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\Module\Api\Twitter;
  23
  24 use Friendica\App;
  25 use Friendica\Core\L10n;
  26 use Friendica\Database\DBA;
  27 use Friendica\DI;
  28 use Friendica\Model\Profile;
  29 use Friendica\Model\User;
  30 use Friendica\Module\BaseApi;
  31 use Friendica\Model\Contact;
  32 use Friendica\Module\Response;
  33 use Friendica\Network\HTTPException;
  34 use Friendica\Util\Profiler;
  35 use Friendica\Util\Strings;
  36 use Psr\Log\LoggerInterface;
  37
  38 abstract class ContactEndpoint extends BaseApi
  39 {
  40         const DEFAULT_COUNT = 20;
  41         const MAX_COUNT = 200;
  42
  43         public function __construct(L10n $l10n, App\BaseURL $baseUrl, App\Arguments $args, LoggerInterface $logger, Profiler $profiler, Response $response, array $server, array $parameters = [])
  44         {
  45                 parent::__construct($l10n, $baseUrl, $args, $logger, $profiler, $response, $server, $parameters);
  46
  47                 self::checkAllowedScope(self::SCOPE_READ);
  48         }
  49
  50         /**
  51          * Computes the uid from the contact_id + screen_name parameters
  52          *
  53          * @param int|null $contact_id
  54          * @param string   $screen_name
  55          * @return int
  56          * @throws HTTPException\NotFoundException
  57          */
  58         protected static function getUid(int $contact_id = null, string $screen_name = null)
  59         {
  60                 $uid = self::getCurrentUserID();
  61
  62                 if ($contact_id || $screen_name) {
  63                         // screen_name trumps user_id when both are provided
  64                         if (!$screen_name) {
  65                                 $contact = Contact::getById($contact_id, ['nick', 'url']);
  66                                 // We don't have the followers of remote accounts so we check for locality
  67                                 if (empty($contact) || !Strings::startsWith($contact['url'], DI::baseUrl()->get())) {
  68                                         throw new HTTPException\NotFoundException(DI::l10n()->t('Contact not found'));
  69                                 }
  70
  71                                 $screen_name = $contact['nick'];
  72                         }
  73
  74                         $user = User::getByNickname($screen_name, ['uid']);
  75                         if (empty($user)) {
  76                                 throw new HTTPException\NotFoundException(DI::l10n()->t('User not found'));
  77                         }
  78
  79                         $uid = (int)$user['uid'];
  80                 }
  81
  82                 return $uid;
  83         }
  84
  85         /**
  86          * This methods expands the contact ids into full user objects in an existing result set.
  87          *
  88          * @param array $ids           List of contact ids
  89          * @param int   $total_count   Total list of contacts
  90          * @param int   $uid           The local user id we query the contacts from
  91          * @param int   $cursor
  92          * @param int   $count
  93          * @param bool  $skip_status
  94          * @param bool  $include_user_entities
  95          * @return array
  96          * @throws HTTPException\InternalServerErrorException
  97          * @throws HTTPException\NotFoundException
  98          * @throws \ImagickException
  99          */
 100         protected static function list(array $ids, int $total_count, int $uid, int $cursor = -1, int $count = self::DEFAULT_COUNT, bool $skip_status = false, bool $include_user_entities = true)
 101         {
 102                 $return = self::ids($ids, $total_count, $cursor, $count, false);
 103
 104                 $users = [];
 105                 foreach ($return['ids'] as $contactId) {
 106                         $users[] = DI::twitterUser()->createFromContactId($contactId, $uid, $skip_status, $include_user_entities);
 107                 }
 108
 109                 unset($return['ids']);
 110                 $return['users'] = $users;
 111
 112                 $return = [
 113                         'users' => $users,
 114                         'next_cursor' => $return['next_cursor'],
 115                         'next_cursor_str' => $return['next_cursor_str'],
 116                         'previous_cursor' => $return['previous_cursor'],
 117                         'previous_cursor_str' => $return['previous_cursor_str'],
 118                         'total_count' => $return['total_count'],
 119                 ];
 120
 121                 return $return;
 122         }
 123
 124         /**
 125          * @param array $ids           List of contact ids
 126          * @param int   $total_count   Total list of contacts
 127          * @param int   $cursor
 128          * @param int   $count         Number of elements to return
 129          * @param bool  $stringify_ids if "true" then the id is converted to a string
 130          * @return array
 131          * @throws HTTPException\NotFoundException
 132          */
 133         protected static function ids(array $ids, int $total_count, int $cursor = -1, int $count = self::DEFAULT_COUNT, bool $stringify_ids = false)
 134         {
 135                 $next_cursor = 0;
 136                 $previous_cursor = 0;
 137
 138                 // Cursor is on the user-specific contact id since it's the sort field
 139                 if (count($ids)) {
 140                         $previous_cursor = -$ids[0];
 141                         $next_cursor = (int)$ids[count($ids) -1];
 142                 }
 143
 144                 // No next page
 145                 if ($total_count <= count($ids) || count($ids) < $count) {
 146                         $next_cursor = 0;
 147                 }
 148                 // End of results
 149                 if ($cursor < 0 && count($ids) === 0) {
 150                         $next_cursor = -1;
 151                 }
 152
 153                 // No previous page
 154                 if ($cursor === -1) {
 155                         $previous_cursor = 0;
 156                 }
 157
 158                 if ($cursor > 0 && count($ids) === 0) {
 159                         $previous_cursor = -$cursor;
 160                 }
 161
 162                 if ($cursor < 0 && count($ids) === 0) {
 163                         $next_cursor = -1;
 164                 }
 165
 166                 if ($stringify_ids) {
 167                         array_walk($ids, function (&$contactId) {
 168                                 $contactId = (string)$contactId;
 169                         });
 170                 }
 171
 172                 $return = [
 173                         'ids' => $ids,
 174                         'next_cursor' => $next_cursor,
 175                         'next_cursor_str' => (string)$next_cursor,
 176                         'previous_cursor' => $previous_cursor,
 177                         'previous_cursor_str' => (string)$previous_cursor,
 178                         'total_count' => $total_count,
 179                 ];
 180
 181                 return $return;
 182         }
 183 }