src/Module/Contact/Follow.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2022, 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\Contact;
  23
  24 use Friendica\App;
  25 use Friendica\BaseModule;
  26 use Friendica\Content\Widget\VCard;
  27 use Friendica\Core\Config\Capability\IManageConfigValues;
  28 use Friendica\Core\L10n;
  29 use Friendica\Core\Protocol;
  30 use Friendica\Core\Renderer;
  31 use Friendica\Core\Session\Capability\IHandleUserSessions;
  32 use Friendica\Model\Contact;
  33 use Friendica\Model\Item;
  34 use Friendica\Model\Post;
  35 use Friendica\Model\Profile;
  36 use Friendica\Model\User;
  37 use Friendica\Module\Response;
  38 use Friendica\Navigation\SystemMessages;
  39 use Friendica\Network\HTTPException\ForbiddenException;
  40 use Friendica\Network\Probe;
  41 use Friendica\Util\Profiler;
  42 use Friendica\Util\Strings;
  43 use Psr\Log\LoggerInterface;
  44
  45 class Follow extends BaseModule
  46 {
  47         /** @var IHandleUserSessions */
  48         protected $session;
  49         /** @var SystemMessages */
  50         protected $sysMessages;
  51         /** @var IManageConfigValues */
  52         protected $config;
  53         /** @var App\Page */
  54         protected $page;
  55
  56         public function __construct(L10n $l10n, App\BaseURL $baseUrl, App\Arguments $args, LoggerInterface $logger, Profiler $profiler, Response $response, IHandleUserSessions $session, SystemMessages $sysMessages, IManageConfigValues $config, App\Page $page, array $server, array $parameters = [])
  57         {
  58                 parent::__construct($l10n, $baseUrl, $args, $logger, $profiler, $response, $server, $parameters);
  59
  60                 $this->session     = $session;
  61                 $this->sysMessages = $sysMessages;
  62                 $this->config      = $config;
  63                 $this->page        = $page;
  64         }
  65
  66         protected function post(array $request = [])
  67         {
  68                 if (!$this->session->getLocalUserId()) {
  69                         throw new ForbiddenException($this->t('Access denied.'));
  70                 }
  71
  72                 if (isset($request['cancel']) || empty($request['url'])) {
  73                         $this->baseUrl->redirect('contact');
  74                 }
  75
  76                 $url = Probe::cleanURI($request['url']);
  77
  78                 $this->process($url);
  79         }
  80
  81         protected function content(array $request = []): string
  82         {
  83                 $returnPath = 'contact';
  84
  85                 if (!$this->session->getLocalUserId()) {
  86                         $this->sysMessages->addNotice($this->t('Permission denied.'));
  87                         $this->baseUrl->redirect($returnPath);
  88                 }
  89
  90                 $uid = $this->session->getLocalUserId();
  91
  92                 // uri is used by the /authorize_interaction Mastodon route
  93                 $url = Probe::cleanURI(trim($request['uri'] ?? $request['url'] ?? ''));
  94
  95                 // Issue 6874: Allow remote following from Peertube
  96                 if (strpos($url, 'acct:') === 0) {
  97                         $url = str_replace('acct:', '', $url);
  98                 }
  99
 100                 if (empty($url)) {
 101                         $this->baseUrl->redirect($returnPath);
 102                 }
 103
 104                 $submit = $this->t('Submit Request');
 105
 106                 // Don't try to add a pending contact
 107                 $userContact = Contact::selectFirst(['pending'], [
 108                         "`uid` = ? AND ((`rel` != ?) OR (`network` = ?)) AND (`nurl` = ? OR `alias` = ? OR `alias` = ?)",
 109                         $uid, Contact::FOLLOWER, Protocol::DFRN,
 110                         Strings::normaliseLink($url),
 111                         Strings::normaliseLink($url), $url]);
 112
 113                 if (!empty($userContact['pending'])) {
 114                         $this->sysMessages->addNotice($this->t('You already added this contact.'));
 115                         $submit = '';
 116                 }
 117
 118                 $contact = Contact::getByURL($url, true);
 119
 120                 // Possibly it is a mail contact
 121                 if (empty($contact)) {
 122                         $contact = Probe::uri($url, Protocol::MAIL, $uid);
 123                 }
 124
 125                 if (empty($contact) || ($contact['network'] == Protocol::PHANTOM)) {
 126                         // Possibly it is a remote item and not an account
 127                         $this->followRemoteItem($url);
 128
 129                         $this->sysMessages->addNotice($this->t('The network type couldn\'t be detected. Contact can\'t be added.'));
 130                         $submit  = '';
 131                         $contact = ['url' => $url, 'network' => Protocol::PHANTOM, 'name' => $url, 'keywords' => ''];
 132                 }
 133
 134                 $protocol = Contact::getProtocol($contact['url'], $contact['network']);
 135
 136                 if (($protocol == Protocol::DIASPORA) && !$this->config->get('system', 'diaspora_enabled')) {
 137                         $this->sysMessages->addNotice($this->t('Diaspora support isn\'t enabled. Contact can\'t be added.'));
 138                         $submit = '';
 139                 }
 140
 141                 if (($protocol == Protocol::OSTATUS) && $this->config->get('system', 'ostatus_disabled')) {
 142                         $this->sysMessages->addNotice($this->t("OStatus support is disabled. Contact can't be added."));
 143                         $submit = '';
 144                 }
 145
 146                 if ($protocol == Protocol::MAIL) {
 147                         $contact['url'] = $contact['addr'];
 148                 }
 149
 150                 if (!empty($request['auto'])) {
 151                         $this->process($contact['url']);
 152                 }
 153
 154                 $requestUrl = $this->baseUrl . '/contact/follow';
 155                 $tpl        = Renderer::getMarkupTemplate('auto_request.tpl');
 156
 157                 $owner = User::getOwnerDataById($uid);
 158                 if (empty($owner)) {
 159                         $this->sysMessages->addNotice($this->t('Permission denied.'));
 160                         $this->baseUrl->redirect($returnPath);
 161                 }
 162
 163                 $myaddr = $owner['url'];
 164
 165                 $output = Renderer::replaceMacros($tpl, [
 166                         '$header'         => $this->t('Connect/Follow'),
 167                         '$pls_answer'     => $this->t('Please answer the following:'),
 168                         '$your_address'   => $this->t('Your Identity Address:'),
 169                         '$url_label'      => $this->t('Profile URL'),
 170                         '$keywords_label' => $this->t('Tags:'),
 171                         '$submit'         => $submit,
 172                         '$cancel'         => $this->t('Cancel'),
 173
 174                         '$action'   => $requestUrl,
 175                         '$name'     => $contact['name'],
 176                         '$url'      => $contact['url'],
 177                         '$zrl'      => Profile::zrl($contact['url']),
 178                         '$myaddr'   => $myaddr,
 179                         '$keywords' => $contact['keywords'],
 180
 181                         '$does_know_you' => ['knowyou', $this->t('%s knows you', $contact['name'])],
 182                         '$addnote_field' => ['dfrn-request-message', $this->t('Add a personal note:')],
 183                 ]);
 184
 185                 $this->page['aside'] = '';
 186
 187                 if (!in_array($protocol, [Protocol::PHANTOM, Protocol::MAIL])) {
 188                         $this->page['aside'] = VCard::getHTML($contact);
 189
 190                         $output .= Renderer::replaceMacros(Renderer::getMarkupTemplate('section_title.tpl'),
 191                                 ['$title' => $this->t('Status Messages and Posts')]
 192                         );
 193
 194                         // Show last public posts
 195                         $output .= Contact::getPostsFromUrl($contact['url']);
 196                 }
 197
 198                 return $output;
 199         }
 200
 201         protected function process(string $url)
 202         {
 203                 $returnPath = 'contact/follow?url=' . urlencode($url);
 204
 205                 $result = Contact::createFromProbeForUser($this->session->getLocalUserId(), $url);
 206
 207                 if (!$result['success']) {
 208                         // Possibly it is a remote item and not an account
 209                         $this->followRemoteItem($url);
 210
 211                         if (!empty($result['message'])) {
 212                                 $this->sysMessages->addNotice($result['message']);
 213                         }
 214
 215                         $this->baseUrl->redirect($returnPath);
 216                 } elseif (!empty($result['cid'])) {
 217                         $this->baseUrl->redirect('contact/' . $result['cid']);
 218                 }
 219
 220                 $this->sysMessages->addNotice($this->t('The contact could not be added.'));
 221                 $this->baseUrl->redirect($returnPath);
 222         }
 223
 224         protected function followRemoteItem(string $url)
 225         {
 226                 $itemId = Item::fetchByLink($url, $this->session->getLocalUserId());
 227                 if (!$itemId) {
 228                         // If the user-specific search failed, we search and probe a public post
 229                         $itemId = Item::fetchByLink($url);
 230                 }
 231
 232                 if (!empty($itemId)) {
 233                         $item = Post::selectFirst(['guid'], ['id' => $itemId]);
 234                         if (!empty($item['guid'])) {
 235                                 $this->baseUrl->redirect('display/' . $item['guid']);
 236                         }
 237                 }
 238         }
 239 }