mod/follow.php

   1 <?php
   2 /**
   3  * @file mod/follow.php
   4  */
   5 use Friendica\App;
   6 use Friendica\Core\Protocol;
   7 use Friendica\Core\Renderer;
   8 use Friendica\DI;
   9 use Friendica\Model\Contact;
  10 use Friendica\Model\Profile;
  11 use Friendica\Network\Probe;
  12 use Friendica\Database\DBA;
  13 use Friendica\Util\Strings;
  14
  15 function follow_post(App $a)
  16 {
  17         if (!local_user()) {
  18                 throw new \Friendica\Network\HTTPException\ForbiddenException(DI::l10n()->t('Access denied.'));
  19         }
  20
  21         if (isset($_REQUEST['cancel'])) {
  22                 DI::baseUrl()->redirect('contact');
  23         }
  24
  25         $uid = local_user();
  26         $url = Strings::escapeTags(trim($_REQUEST['url']));
  27         $return_path = 'follow?url=' . urlencode($url);
  28
  29         // Makes the connection request for friendica contacts easier
  30         // This is just a precaution if maybe this page is called somewhere directly via POST
  31         $_SESSION['fastlane'] = $url;
  32
  33         $result = Contact::createFromProbe($uid, $url, true);
  34
  35         if ($result['success'] == false) {
  36                 if ($result['message']) {
  37                         notice($result['message']);
  38                 }
  39                 DI::baseUrl()->redirect($return_path);
  40         } elseif ($result['cid']) {
  41                 DI::baseUrl()->redirect('contact/' . $result['cid']);
  42         }
  43
  44         info(DI::l10n()->t('The contact could not be added.'));
  45
  46         DI::baseUrl()->redirect($return_path);
  47         // NOTREACHED
  48 }
  49
  50 function follow_content(App $a)
  51 {
  52         $return_path = 'contact';
  53
  54         if (!local_user()) {
  55                 notice(DI::l10n()->t('Permission denied.'));
  56                 DI::baseUrl()->redirect($return_path);
  57                 // NOTREACHED
  58         }
  59
  60         $uid = local_user();
  61
  62         // Issue 4815: Silently removing a prefixing @
  63         $url = ltrim(Strings::escapeTags(trim($_REQUEST['url'] ?? '')), '@!');
  64
  65         // Issue 6874: Allow remote following from Peertube
  66         if (strpos($url, 'acct:') === 0) {
  67                 $url = str_replace('acct:', '', $url);
  68         }
  69
  70         if (!$url) {
  71                 DI::baseUrl()->redirect($return_path);
  72         }
  73
  74         $submit = DI::l10n()->t('Submit Request');
  75
  76         // Don't try to add a pending contact
  77         $r = q("SELECT `pending` FROM `contact` WHERE `uid` = %d AND ((`rel` != %d) OR (`network` = '%s')) AND
  78                 (`nurl` = '%s' OR `alias` = '%s' OR `alias` = '%s') AND
  79                 `network` != '%s' LIMIT 1",
  80                 intval(local_user()), DBA::escape(Contact::FOLLOWER), DBA::escape(Protocol::DFRN), DBA::escape(Strings::normaliseLink($url)),
  81                 DBA::escape(Strings::normaliseLink($url)), DBA::escape($url), DBA::escape(Protocol::STATUSNET));
  82
  83         if ($r) {
  84                 if ($r[0]['pending']) {
  85                         notice(DI::l10n()->t('You already added this contact.'));
  86                         $submit = '';
  87                         //$a->internalRedirect($_SESSION['return_path']);
  88                         // NOTREACHED
  89                 }
  90         }
  91
  92         $ret = Probe::uri($url);
  93
  94         $protocol = Contact::getProtocol($ret['url'], $ret['network']);
  95
  96         if (($protocol == Protocol::DIASPORA) && !DI::config()->get('system', 'diaspora_enabled')) {
  97                 notice(DI::l10n()->t("Diaspora support isn't enabled. Contact can't be added."));
  98                 $submit = '';
  99                 //$a->internalRedirect($_SESSION['return_path']);
 100                 // NOTREACHED
 101         }
 102
 103         if (($protocol == Protocol::OSTATUS) && DI::config()->get('system', 'ostatus_disabled')) {
 104                 notice(DI::l10n()->t("OStatus support is disabled. Contact can't be added."));
 105                 $submit = '';
 106                 //$a->internalRedirect($_SESSION['return_path']);
 107                 // NOTREACHED
 108         }
 109
 110         if ($protocol == Protocol::PHANTOM) {
 111                 notice(DI::l10n()->t("The network type couldn't be detected. Contact can't be added."));
 112                 $submit = '';
 113                 //$a->internalRedirect($_SESSION['return_path']);
 114                 // NOTREACHED
 115         }
 116
 117         if ($protocol == Protocol::MAIL) {
 118                 $ret['url'] = $ret['addr'];
 119         }
 120
 121         if (($protocol === Protocol::DFRN) && !DBA::isResult($r)) {
 122                 $request = $ret['request'];
 123                 $tpl = Renderer::getMarkupTemplate('dfrn_request.tpl');
 124         } else {
 125                 $request = DI::baseUrl() . '/follow';
 126                 $tpl = Renderer::getMarkupTemplate('auto_request.tpl');
 127         }
 128
 129         $r = q("SELECT `url` FROM `contact` WHERE `uid` = %d AND `self` LIMIT 1", intval($uid));
 130
 131         if (!$r) {
 132                 notice(DI::l10n()->t('Permission denied.'));
 133                 DI::baseUrl()->redirect($return_path);
 134                 // NOTREACHED
 135         }
 136
 137         $myaddr = $r[0]['url'];
 138         $gcontact_id = 0;
 139
 140         // Makes the connection request for friendica contacts easier
 141         $_SESSION['fastlane'] = $ret['url'];
 142
 143         $r = q("SELECT `id`, `location`, `about`, `keywords` FROM `gcontact` WHERE `nurl` = '%s'",
 144                 Strings::normaliseLink($ret['url']));
 145
 146         if (!$r) {
 147                 $r = [['location' => '', 'about' => '', 'keywords' => '']];
 148         } else {
 149                 $gcontact_id = $r[0]['id'];
 150         }
 151
 152         if ($protocol === Protocol::DIASPORA) {
 153                 $r[0]['location'] = '';
 154                 $r[0]['about'] = '';
 155         }
 156
 157         $o = Renderer::replaceMacros($tpl, [
 158                 '$header'        => DI::l10n()->t('Connect/Follow'),
 159                 '$desc'          => '',
 160                 '$pls_answer'    => DI::l10n()->t('Please answer the following:'),
 161                 '$does_know_you' => ['knowyou', DI::l10n()->t('Does %s know you?', $ret['name']), false, '', [DI::l10n()->t('No'), DI::l10n()->t('Yes')]],
 162                 '$add_note'      => DI::l10n()->t('Add a personal note:'),
 163                 '$page_desc'     => '',
 164                 '$friendica'     => '',
 165                 '$statusnet'     => '',
 166                 '$diaspora'      => '',
 167                 '$diasnote'      => '',
 168                 '$your_address'  => DI::l10n()->t('Your Identity Address:'),
 169                 '$invite_desc'   => '',
 170                 '$emailnet'      => '',
 171                 '$submit'        => $submit,
 172                 '$cancel'        => DI::l10n()->t('Cancel'),
 173                 '$nickname'      => '',
 174                 '$name'          => $ret['name'],
 175                 '$url'           => $ret['url'],
 176                 '$zrl'           => Profile::zrl($ret['url']),
 177                 '$url_label'     => DI::l10n()->t('Profile URL'),
 178                 '$myaddr'        => $myaddr,
 179                 '$request'       => $request,
 180                 '$keywords'      => $r[0]['keywords'],
 181                 '$keywords_label'=> DI::l10n()->t('Tags:')
 182         ]);
 183
 184         DI::page()['aside'] = '';
 185
 186         $profiledata = Contact::getDetailsByURL($ret['url']);
 187         if ($profiledata) {
 188                 Profile::load($a, '', 0, $profiledata, false);
 189         }
 190
 191         if ($gcontact_id <> 0) {
 192                 $o .= Renderer::replaceMacros(Renderer::getMarkupTemplate('section_title.tpl'),
 193                         ['$title' => DI::l10n()->t('Status Messages and Posts')]
 194                 );
 195
 196                 // Show last public posts
 197                 $o .= Contact::getPostsFromUrl($ret['url']);
 198         }
 199
 200         return $o;
 201 }