mod/follow.php

   1 <?php
   2 /**
   3  * @file mod/follow.php
   4  */
   5 use Friendica\App;
   6 use Friendica\Core\Config;
   7 use Friendica\Core\Protocol;
   8 use Friendica\Core\Renderer;
   9 use Friendica\DI;
  10 use Friendica\Model\Contact;
  11 use Friendica\Model\Profile;
  12 use Friendica\Network\Probe;
  13 use Friendica\Database\DBA;
  14 use Friendica\Util\Strings;
  15
  16 function follow_post(App $a)
  17 {
  18         if (!local_user()) {
  19                 throw new \Friendica\Network\HTTPException\ForbiddenException(DI::l10n()->t('Access denied.'));
  20         }
  21
  22         if (isset($_REQUEST['cancel'])) {
  23                 DI::baseUrl()->redirect('contact');
  24         }
  25
  26         $uid = local_user();
  27         $url = Strings::escapeTags(trim($_REQUEST['url']));
  28         $return_path = 'follow?url=' . urlencode($url);
  29
  30         // Makes the connection request for friendica contacts easier
  31         // This is just a precaution if maybe this page is called somewhere directly via POST
  32         $_SESSION['fastlane'] = $url;
  33
  34         $result = Contact::createFromProbe($uid, $url, true);
  35
  36         if ($result['success'] == false) {
  37                 if ($result['message']) {
  38                         notice($result['message']);
  39                 }
  40                 DI::baseUrl()->redirect($return_path);
  41         } elseif ($result['cid']) {
  42                 DI::baseUrl()->redirect('contact/' . $result['cid']);
  43         }
  44
  45         info(DI::l10n()->t('The contact could not be added.'));
  46
  47         DI::baseUrl()->redirect($return_path);
  48         // NOTREACHED
  49 }
  50
  51 function follow_content(App $a)
  52 {
  53         $return_path = 'contact';
  54
  55         if (!local_user()) {
  56                 notice(DI::l10n()->t('Permission denied.'));
  57                 DI::baseUrl()->redirect($return_path);
  58                 // NOTREACHED
  59         }
  60
  61         $uid = local_user();
  62
  63         // Issue 4815: Silently removing a prefixing @
  64         $url = ltrim(Strings::escapeTags(trim($_REQUEST['url'] ?? '')), '@!');
  65
  66         // Issue 6874: Allow remote following from Peertube
  67         if (strpos($url, 'acct:') === 0) {
  68                 $url = str_replace('acct:', '', $url);
  69         }
  70
  71         if (!$url) {
  72                 DI::baseUrl()->redirect($return_path);
  73         }
  74
  75         $submit = DI::l10n()->t('Submit Request');
  76
  77         // Don't try to add a pending contact
  78         $r = q("SELECT `pending` FROM `contact` WHERE `uid` = %d AND ((`rel` != %d) OR (`network` = '%s')) AND
  79                 (`nurl` = '%s' OR `alias` = '%s' OR `alias` = '%s') AND
  80                 `network` != '%s' LIMIT 1",
  81                 intval(local_user()), DBA::escape(Contact::FOLLOWER), DBA::escape(Protocol::DFRN), DBA::escape(Strings::normaliseLink($url)),
  82                 DBA::escape(Strings::normaliseLink($url)), DBA::escape($url), DBA::escape(Protocol::STATUSNET));
  83
  84         if ($r) {
  85                 if ($r[0]['pending']) {
  86                         notice(DI::l10n()->t('You already added this contact.'));
  87                         $submit = '';
  88                         //$a->internalRedirect($_SESSION['return_path']);
  89                         // NOTREACHED
  90                 }
  91         }
  92
  93         $ret = Probe::uri($url);
  94
  95         $protocol = Contact::getProtocol($ret['url'], $ret['network']);
  96
  97         if (($protocol == Protocol::DIASPORA) && !Config::get('system', 'diaspora_enabled')) {
  98                 notice(DI::l10n()->t("Diaspora support isn't enabled. Contact can't be added."));
  99                 $submit = '';
 100                 //$a->internalRedirect($_SESSION['return_path']);
 101                 // NOTREACHED
 102         }
 103
 104         if (($protocol == Protocol::OSTATUS) && Config::get('system', 'ostatus_disabled')) {
 105                 notice(DI::l10n()->t("OStatus support is disabled. Contact can't be added."));
 106                 $submit = '';
 107                 //$a->internalRedirect($_SESSION['return_path']);
 108                 // NOTREACHED
 109         }
 110
 111         if ($protocol == Protocol::PHANTOM) {
 112                 notice(DI::l10n()->t("The network type couldn't be detected. Contact can't be added."));
 113                 $submit = '';
 114                 //$a->internalRedirect($_SESSION['return_path']);
 115                 // NOTREACHED
 116         }
 117
 118         if ($protocol == Protocol::MAIL) {
 119                 $ret['url'] = $ret['addr'];
 120         }
 121
 122         if (($protocol === Protocol::DFRN) && !DBA::isResult($r)) {
 123                 $request = $ret['request'];
 124                 $tpl = Renderer::getMarkupTemplate('dfrn_request.tpl');
 125         } else {
 126                 $request = DI::baseUrl() . '/follow';
 127                 $tpl = Renderer::getMarkupTemplate('auto_request.tpl');
 128         }
 129
 130         $r = q("SELECT `url` FROM `contact` WHERE `uid` = %d AND `self` LIMIT 1", intval($uid));
 131
 132         if (!$r) {
 133                 notice(DI::l10n()->t('Permission denied.'));
 134                 DI::baseUrl()->redirect($return_path);
 135                 // NOTREACHED
 136         }
 137
 138         $myaddr = $r[0]['url'];
 139         $gcontact_id = 0;
 140
 141         // Makes the connection request for friendica contacts easier
 142         $_SESSION['fastlane'] = $ret['url'];
 143
 144         $r = q("SELECT `id`, `location`, `about`, `keywords` FROM `gcontact` WHERE `nurl` = '%s'",
 145                 Strings::normaliseLink($ret['url']));
 146
 147         if (!$r) {
 148                 $r = [['location' => '', 'about' => '', 'keywords' => '']];
 149         } else {
 150                 $gcontact_id = $r[0]['id'];
 151         }
 152
 153         if ($protocol === Protocol::DIASPORA) {
 154                 $r[0]['location'] = '';
 155                 $r[0]['about'] = '';
 156         }
 157
 158         $o = Renderer::replaceMacros($tpl, [
 159                 '$header'        => DI::l10n()->t('Connect/Follow'),
 160                 '$desc'          => '',
 161                 '$pls_answer'    => DI::l10n()->t('Please answer the following:'),
 162                 '$does_know_you' => ['knowyou', DI::l10n()->t('Does %s know you?', $ret['name']), false, '', [DI::l10n()->t('No'), DI::l10n()->t('Yes')]],
 163                 '$add_note'      => DI::l10n()->t('Add a personal note:'),
 164                 '$page_desc'     => '',
 165                 '$friendica'     => '',
 166                 '$statusnet'     => '',
 167                 '$diaspora'      => '',
 168                 '$diasnote'      => '',
 169                 '$your_address'  => DI::l10n()->t('Your Identity Address:'),
 170                 '$invite_desc'   => '',
 171                 '$emailnet'      => '',
 172                 '$submit'        => $submit,
 173                 '$cancel'        => DI::l10n()->t('Cancel'),
 174                 '$nickname'      => '',
 175                 '$name'          => $ret['name'],
 176                 '$url'           => $ret['url'],
 177                 '$zrl'           => Profile::zrl($ret['url']),
 178                 '$url_label'     => DI::l10n()->t('Profile URL'),
 179                 '$myaddr'        => $myaddr,
 180                 '$request'       => $request,
 181                 '$keywords'      => $r[0]['keywords'],
 182                 '$keywords_label'=> DI::l10n()->t('Tags:')
 183         ]);
 184
 185         DI::page()['aside'] = '';
 186
 187         $profiledata = Contact::getDetailsByURL($ret['url']);
 188         if ($profiledata) {
 189                 Profile::load($a, '', 0, $profiledata, false);
 190         }
 191
 192         if ($gcontact_id <> 0) {
 193                 $o .= Renderer::replaceMacros(Renderer::getMarkupTemplate('section_title.tpl'),
 194                         ['$title' => DI::l10n()->t('Status Messages and Posts')]
 195                 );
 196
 197                 // Show last public posts
 198                 $o .= Contact::getPostsFromUrl($ret['url']);
 199         }
 200
 201         return $o;
 202 }