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\L10n;
   8 use Friendica\Core\Protocol;
   9 use Friendica\Core\Renderer;
  10 use Friendica\Core\System;
  11 use Friendica\DI;
  12 use Friendica\Model\Contact;
  13 use Friendica\Model\Profile;
  14 use Friendica\Network\Probe;
  15 use Friendica\Database\DBA;
  16 use Friendica\Util\Strings;
  17
  18 function follow_post(App $a)
  19 {
  20         if (!local_user()) {
  21                 throw new \Friendica\Network\HTTPException\ForbiddenException(L10n::t('Access denied.'));
  22         }
  23
  24         if (isset($_REQUEST['cancel'])) {
  25                 DI::baseUrl()->redirect('contact');
  26         }
  27
  28         $uid = local_user();
  29         $url = Strings::escapeTags(trim($_REQUEST['url']));
  30         $return_path = 'follow?url=' . urlencode($url);
  31
  32         // Makes the connection request for friendica contacts easier
  33         // This is just a precaution if maybe this page is called somewhere directly via POST
  34         $_SESSION['fastlane'] = $url;
  35
  36         $result = Contact::createFromProbe($uid, $url, true);
  37
  38         if ($result['success'] == false) {
  39                 if ($result['message']) {
  40                         notice($result['message']);
  41                 }
  42                 DI::baseUrl()->redirect($return_path);
  43         } elseif ($result['cid']) {
  44                 DI::baseUrl()->redirect('contact/' . $result['cid']);
  45         }
  46
  47         info(L10n::t('The contact could not be added.'));
  48
  49         DI::baseUrl()->redirect($return_path);
  50         // NOTREACHED
  51 }
  52
  53 function follow_content(App $a)
  54 {
  55         $return_path = 'contact';
  56
  57         if (!local_user()) {
  58                 notice(L10n::t('Permission denied.'));
  59                 DI::baseUrl()->redirect($return_path);
  60                 // NOTREACHED
  61         }
  62
  63         $uid = local_user();
  64
  65         // Issue 4815: Silently removing a prefixing @
  66         $url = ltrim(Strings::escapeTags(trim($_REQUEST['url'] ?? '')), '@!');
  67
  68         // Issue 6874: Allow remote following from Peertube
  69         if (strpos($url, 'acct:') === 0) {
  70                 $url = str_replace('acct:', '', $url);
  71         }
  72
  73         if (!$url) {
  74                 DI::baseUrl()->redirect($return_path);
  75         }
  76
  77         $submit = L10n::t('Submit Request');
  78
  79         // Don't try to add a pending contact
  80         $r = q("SELECT `pending` FROM `contact` WHERE `uid` = %d AND ((`rel` != %d) OR (`network` = '%s')) AND
  81                 (`nurl` = '%s' OR `alias` = '%s' OR `alias` = '%s') AND
  82                 `network` != '%s' LIMIT 1",
  83                 intval(local_user()), DBA::escape(Contact::FOLLOWER), DBA::escape(Protocol::DFRN), DBA::escape(Strings::normaliseLink($url)),
  84                 DBA::escape(Strings::normaliseLink($url)), DBA::escape($url), DBA::escape(Protocol::STATUSNET));
  85
  86         if ($r) {
  87                 if ($r[0]['pending']) {
  88                         notice(L10n::t('You already added this contact.'));
  89                         $submit = '';
  90                         //$a->internalRedirect($_SESSION['return_path']);
  91                         // NOTREACHED
  92                 }
  93         }
  94
  95         $ret = Probe::uri($url);
  96
  97         $protocol = Contact::getProtocol($ret['url'], $ret['network']);
  98
  99         if (($protocol == Protocol::DIASPORA) && !Config::get('system', 'diaspora_enabled')) {
 100                 notice(L10n::t("Diaspora support isn't enabled. Contact can't be added."));
 101                 $submit = '';
 102                 //$a->internalRedirect($_SESSION['return_path']);
 103                 // NOTREACHED
 104         }
 105
 106         if (($protocol == Protocol::OSTATUS) && Config::get('system', 'ostatus_disabled')) {
 107                 notice(L10n::t("OStatus support is disabled. Contact can't be added."));
 108                 $submit = '';
 109                 //$a->internalRedirect($_SESSION['return_path']);
 110                 // NOTREACHED
 111         }
 112
 113         if ($protocol == Protocol::PHANTOM) {
 114                 notice(L10n::t("The network type couldn't be detected. Contact can't be added."));
 115                 $submit = '';
 116                 //$a->internalRedirect($_SESSION['return_path']);
 117                 // NOTREACHED
 118         }
 119
 120         if ($protocol == Protocol::MAIL) {
 121                 $ret['url'] = $ret['addr'];
 122         }
 123
 124         if (($protocol === Protocol::DFRN) && !DBA::isResult($r)) {
 125                 $request = $ret['request'];
 126                 $tpl = Renderer::getMarkupTemplate('dfrn_request.tpl');
 127         } else {
 128                 $request = DI::baseUrl() . '/follow';
 129                 $tpl = Renderer::getMarkupTemplate('auto_request.tpl');
 130         }
 131
 132         $r = q("SELECT `url` FROM `contact` WHERE `uid` = %d AND `self` LIMIT 1", intval($uid));
 133
 134         if (!$r) {
 135                 notice(L10n::t('Permission denied.'));
 136                 DI::baseUrl()->redirect($return_path);
 137                 // NOTREACHED
 138         }
 139
 140         $myaddr = $r[0]['url'];
 141         $gcontact_id = 0;
 142
 143         // Makes the connection request for friendica contacts easier
 144         $_SESSION['fastlane'] = $ret['url'];
 145
 146         $r = q("SELECT `id`, `location`, `about`, `keywords` FROM `gcontact` WHERE `nurl` = '%s'",
 147                 Strings::normaliseLink($ret['url']));
 148
 149         if (!$r) {
 150                 $r = [['location' => '', 'about' => '', 'keywords' => '']];
 151         } else {
 152                 $gcontact_id = $r[0]['id'];
 153         }
 154
 155         if ($protocol === Protocol::DIASPORA) {
 156                 $r[0]['location'] = '';
 157                 $r[0]['about'] = '';
 158         }
 159
 160         $o = Renderer::replaceMacros($tpl, [
 161                 '$header'        => L10n::t('Connect/Follow'),
 162                 '$desc'          => '',
 163                 '$pls_answer'    => L10n::t('Please answer the following:'),
 164                 '$does_know_you' => ['knowyou', L10n::t('Does %s know you?', $ret['name']), false, '', [L10n::t('No'), L10n::t('Yes')]],
 165                 '$add_note'      => L10n::t('Add a personal note:'),
 166                 '$page_desc'     => '',
 167                 '$friendica'     => '',
 168                 '$statusnet'     => '',
 169                 '$diaspora'      => '',
 170                 '$diasnote'      => '',
 171                 '$your_address'  => L10n::t('Your Identity Address:'),
 172                 '$invite_desc'   => '',
 173                 '$emailnet'      => '',
 174                 '$submit'        => $submit,
 175                 '$cancel'        => L10n::t('Cancel'),
 176                 '$nickname'      => '',
 177                 '$name'          => $ret['name'],
 178                 '$url'           => $ret['url'],
 179                 '$zrl'           => Profile::zrl($ret['url']),
 180                 '$url_label'     => L10n::t('Profile URL'),
 181                 '$myaddr'        => $myaddr,
 182                 '$request'       => $request,
 183                 '$keywords'      => $r[0]['keywords'],
 184                 '$keywords_label'=> L10n::t('Tags:')
 185         ]);
 186
 187         DI::page()['aside'] = '';
 188
 189         $profiledata = Contact::getDetailsByURL($ret['url']);
 190         if ($profiledata) {
 191                 Profile::load($a, '', 0, $profiledata, false);
 192         }
 193
 194         if ($gcontact_id <> 0) {
 195                 $o .= Renderer::replaceMacros(Renderer::getMarkupTemplate('section_title.tpl'),
 196                         ['$title' => L10n::t('Status Messages and Posts')]
 197                 );
 198
 199                 // Show last public posts
 200                 $o .= Contact::getPostsFromUrl($ret['url']);
 201         }
 202
 203         return $o;
 204 }