mod/follow.php

   1 <?php
   2
   3 require_once('Scrape.php');
   4
   5 function follow_post(&$a) {
   6
   7         if(! local_user()) {
   8                 notice( t('Permission denied.') . EOL);
   9                 goaway($_SESSION['return_url']);
  10                 // NOTREACHED
  11         }
  12
  13         $url = $orig_url = notags(trim($_POST['url']));
  14
  15         if(! allowed_url($url)) {
  16                 notice( t('Disallowed profile URL.') . EOL);
  17                 goaway($_SESSION['return_url']);
  18                 // NOTREACHED
  19         }
  20
  21
  22         $ret = probe_url($url);
  23
  24
  25         if($ret['network'] === NETWORK_DFRN) {
  26                 if(strlen($a->path))
  27                         $myaddr = bin2hex($a->get_baseurl() . '/profile/' . $a->user['nickname']);
  28                 else
  29                         $myaddr = bin2hex($a->user['nickname'] . '@' . $a->get_hostname());
  30
  31                 goaway($ret['request'] . "&addr=$myaddr");
  32
  33                 // NOTREACHED
  34         }
  35
  36         // do we have enough information?
  37
  38         if(! ((x($ret,'name')) && (x($ret,'poll')) && ((x($ret,'url')) || (x($ret,'addr'))))) {
  39                 notice( t('The profile address specified does not provide adequate information.') . EOL);
  40                 goaway($_SESSION['return_url']);
  41         }
  42
  43
  44         if(! $ret['notify']) {
  45                 notice( t('Limited profile. This person will be unable to receive direct/personal notifications from you.') . EOL);
  46         }
  47
  48         $writeable = ((($ret['network'] === NETWORK_OSTATUS) && ($ret['notify'])) ? 1 : 0);
  49         if($ret['network'] === NETWORK_MAIL) {
  50                 $writeable = 1;
  51
  52         }
  53         // check if we already have a contact
  54         // the poll url is more reliable than the profile url, as we may have
  55         // indirect links or webfinger links
  56
  57         $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `poll` = '%s' LIMIT 1",
  58                 intval(local_user()),
  59                 dbesc($ret['poll'])
  60         );
  61
  62         if(count($r)) {
  63                 // update contact
  64                 if($r[0]['rel'] == REL_VIP) {
  65                         q("UPDATE `contact` SET `rel` = %d , `readonly` = 0 WHERE `id` = %d AND `uid` = %d LIMIT 1",
  66                                 intval(REL_BUD),
  67                                 intval($r[0]['id']),
  68                                 intval(local_user())
  69                         );
  70                 }
  71         }
  72         else {
  73                 // create contact record
  74                 $r = q("INSERT INTO `contact` ( `uid`, `created`, `url`, `addr`, `alias`, `notify`, `poll`, `name`, `nick`, `photo`, `network`, `rel`, `priority`,
  75                         `writable`, `blocked`, `readonly`, `pending` )
  76                         VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, %d, 0, 0, 0 ) ",
  77                         intval(local_user()),
  78                         dbesc(datetime_convert()),
  79                         dbesc($ret['url']),
  80                         dbesc($ret['addr']),
  81                         dbesc($ret['alias']),
  82                         dbesc($ret['notify']),
  83                         dbesc($ret['poll']),
  84                         dbesc($ret['name']),
  85                         dbesc($ret['nick']),
  86                         dbesc($ret['photo']),
  87                         dbesc($ret['network']),
  88                         intval(($ret['network'] === NETWORK_MAIL) ? REL_BUD : REL_FAN),
  89                         intval($ret['priority']),
  90                         intval($writeable)
  91                 );
  92         }
  93
  94         $r = q("SELECT * FROM `contact` WHERE `url` = '%s' AND `uid` = %d LIMIT 1",
  95                 dbesc($ret['url']),
  96                 intval(local_user())
  97         );
  98
  99         if(! count($r)) {
 100                 notice( t('Unable to retrieve contact information.') . EOL);
 101                 goaway($_SESSION['return_url']);
 102                 // NOTREACHED
 103         }
 104
 105         $contact = $r[0];
 106         $contact_id  = $r[0]['id'];
 107
 108         require_once("Photo.php");
 109
 110         $photos = import_profile_photo($ret['photo'],local_user(),$contact_id);
 111
 112         $r = q("UPDATE `contact` SET `photo` = '%s',
 113                         `thumb` = '%s',
 114                         `micro` = '%s',
 115                         `name-date` = '%s',
 116                         `uri-date` = '%s',
 117                         `avatar-date` = '%s'
 118                         WHERE `id` = %d LIMIT 1
 119                 ",
 120                         dbesc($photos[0]),
 121                         dbesc($photos[1]),
 122                         dbesc($photos[2]),
 123                         dbesc(datetime_convert()),
 124                         dbesc(datetime_convert()),
 125                         dbesc(datetime_convert()),
 126                         intval($contact_id)
 127                 );
 128
 129
 130         // pull feed and consume it, which should subscribe to the hub.
 131
 132         proc_run('php',"include/poller.php","$contact_id");
 133
 134         // create a follow slap
 135
 136         $tpl = load_view_file('view/follow_slap.tpl');
 137         $slap = replace_macros($tpl, array(
 138                 '$name' => $a->user['username'],
 139                 '$profile_page' => $a->get_baseurl() . '/profile/' . $a->user['nickname'],
 140                 '$photo' => $a->contact['photo'],
 141                 '$thumb' => $a->contact['thumb'],
 142                 '$published' => datetime_convert('UTC','UTC', 'now', ATOM_TIME),
 143                 '$item_id' => 'urn:X-dfrn:' . $a->get_hostname() . ':follow:' . random_string(),
 144                 '$title' => '',
 145                 '$type' => 'text',
 146                 '$content' => t('following'),
 147                 '$nick' => $a->user['nickname'],
 148                 '$verb' => ACTIVITY_FOLLOW,
 149                 '$ostat_follow' => ''
 150         ));
 151
 152         $r = q("SELECT `contact`.*, `user`.* FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
 153                         WHERE `user`.`uid` = %d AND `contact`.`self` = 1 LIMIT 1",
 154                         intval(local_user())
 155         );
 156
 157
 158         if((count($r)) && (x($contact,'notify')) && (strlen($contact['notify']))) {
 159                 require_once('include/salmon.php');
 160                 slapper($r[0],$contact['notify'],$slap);
 161         }
 162
 163         goaway($_SESSION['return_url']);
 164         // NOTREACHED
 165 }