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` = ?) AND `network` != ?",
 109                         $uid, Contact::FOLLOWER, Protocol::DFRN,
 110                         Strings::normaliseLink($url),
 111                         Strings::normaliseLink($url), $url,
 112                         Protocol::STATUSNET]);
 113
 114                 if (!empty($userContact['pending'])) {
 115                         $this->sysMessages->addNotice($this->t('You already added this contact.'));
 116                         $submit = '';
 117                 }
 118
 119                 $contact = Contact::getByURL($url, true);
 120
 121                 // Possibly it is a mail contact
 122                 if (empty($contact)) {
 123                         $contact = Probe::uri($url, Protocol::MAIL, $uid);
 124                 }
 125
 126                 if (empty($contact) || ($contact['network'] == Protocol::PHANTOM)) {
 127                         // Possibly it is a remote item and not an account
 128                         $this->followRemoteItem($url);
 129
 130                         $this->sysMessages->addNotice($this->t('The network type couldn\'t be detected. Contact can\'t be added.'));
 131                         $submit  = '';
 132                         $contact = ['url' => $url, 'network' => Protocol::PHANTOM, 'name' => $url, 'keywords' => ''];
 133                 }
 134
 135                 $protocol = Contact::getProtocol($contact['url'], $contact['network']);
 136
 137                 if (($protocol == Protocol::DIASPORA) && !$this->config->get('system', 'diaspora_enabled')) {
 138                         $this->sysMessages->addNotice($this->t('Diaspora support isn\'t enabled. Contact can\'t be added.'));
 139                         $submit = '';
 140                 }
 141
 142                 if (($protocol == Protocol::OSTATUS) && $this->config->get('system', 'ostatus_disabled')) {
 143                         $this->sysMessages->addNotice($this->t("OStatus support is disabled. Contact can't be added."));
 144                         $submit = '';
 145                 }
 146
 147                 if ($protocol == Protocol::MAIL) {
 148                         $contact['url'] = $contact['addr'];
 149                 }
 150
 151                 if (!empty($request['auto'])) {
 152                         $this->process($contact['url']);
 153                 }
 154
 155                 $requestUrl = $this->baseUrl . '/contact/follow';
 156                 $tpl        = Renderer::getMarkupTemplate('auto_request.tpl');
 157
 158                 $owner = User::getOwnerDataById($uid);
 159                 if (empty($owner)) {
 160                         $this->sysMessages->addNotice($this->t('Permission denied.'));
 161                         $this->baseUrl->redirect($returnPath);
 162                 }
 163
 164                 $myaddr = $owner['url'];
 165
 166                 $output = Renderer::replaceMacros($tpl, [
 167                         '$header'         => $this->t('Connect/Follow'),
 168                         '$pls_answer'     => $this->t('Please answer the following:'),
 169                         '$your_address'   => $this->t('Your Identity Address:'),
 170                         '$url_label'      => $this->t('Profile URL'),
 171                         '$keywords_label' => $this->t('Tags:'),
 172                         '$submit'         => $submit,
 173                         '$cancel'         => $this->t('Cancel'),
 174
 175                         '$action'   => $requestUrl,
 176                         '$name'     => $contact['name'],
 177                         '$url'      => $contact['url'],
 178                         '$zrl'      => Profile::zrl($contact['url']),
 179                         '$myaddr'   => $myaddr,
 180                         '$keywords' => $contact['keywords'],
 181
 182                         '$does_know_you' => ['knowyou', $this->t('%s knows you', $contact['name'])],
 183                         '$addnote_field' => ['dfrn-request-message', $this->t('Add a personal note:')],
 184                 ]);
 185
 186                 $this->page['aside'] = '';
 187
 188                 if (!in_array($protocol, [Protocol::PHANTOM, Protocol::MAIL])) {
 189                         $this->page['aside'] = VCard::getHTML($contact);
 190
 191                         $output .= Renderer::replaceMacros(Renderer::getMarkupTemplate('section_title.tpl'),
 192                                 ['$title' => $this->t('Status Messages and Posts')]
 193                         );
 194
 195                         // Show last public posts
 196                         $output .= Contact::getPostsFromUrl($contact['url']);
 197                 }
 198
 199                 return $output;
 200         }
 201
 202         protected function process(string $url)
 203         {
 204                 $returnPath = 'contact/follow?url=' . urlencode($url);
 205
 206                 $result = Contact::createFromProbeForUser($this->session->getLocalUserId(), $url);
 207
 208                 if (!$result['success']) {
 209                         // Possibly it is a remote item and not an account
 210                         $this->followRemoteItem($url);
 211
 212                         if (!empty($result['message'])) {
 213                                 $this->sysMessages->addNotice($result['message']);
 214                         }
 215
 216                         $this->baseUrl->redirect($returnPath);
 217                 } elseif (!empty($result['cid'])) {
 218                         $this->baseUrl->redirect('contact/' . $result['cid']);
 219                 }
 220
 221                 $this->sysMessages->addNotice($this->t('The contact could not be added.'));
 222                 $this->baseUrl->redirect($returnPath);
 223         }
 224
 225         protected function followRemoteItem(string $url)
 226         {
 227                 $itemId = Item::fetchByLink($url, $this->session->getLocalUserId());
 228                 if (!$itemId) {
 229                         // If the user-specific search failed, we search and probe a public post
 230                         $itemId = Item::fetchByLink($url);
 231                 }
 232
 233                 if (!empty($itemId)) {
 234                         $item = Post::selectFirst(['guid'], ['id' => $itemId]);
 235                         if (!empty($item['guid'])) {
 236                                 $this->baseUrl->redirect('display/' . $item['guid']);
 237                         }
 238                 }
 239         }
 240 }