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         // remove ajax junk, e.g. Twitter
  16
  17         $url = str_replace('/#!/','/',$url);
  18
  19         if(! allowed_url($url)) {
  20                 notice( t('Disallowed profile URL.') . EOL);
  21                 goaway($_SESSION['return_url']);
  22                 // NOTREACHED
  23         }
  24
  25         $ret = probe_url($url);
  26
  27         if($ret['network'] === NETWORK_DFRN) {
  28                 if(strlen($a->path))
  29                         $myaddr = bin2hex($a->get_baseurl() . '/profile/' . $a->user['nickname']);
  30                 else
  31                         $myaddr = bin2hex($a->user['nickname'] . '@' . $a->get_hostname());
  32
  33                 goaway($ret['request'] . "&addr=$myaddr");
  34
  35                 // NOTREACHED
  36         }
  37         elseif(get_config('system','strict_privacy')) {
  38                 unset($ret['notify']);
  39         }
  40
  41         // do we have enough information?
  42
  43         if(! ((x($ret,'name')) && (x($ret,'poll')) && ((x($ret,'url')) || (x($ret,'addr'))))) {
  44                 notice( t('The profile address specified does not provide adequate information.') . EOL);
  45                 if(! x($ret,'poll'))
  46                         notice( t('No compatible communication protocols or feeds were discovered.') . EOL);
  47                 if(! x($ret,'name'))
  48                         notice( t('An author or name was not found.') . EOL);
  49                 if(! x($ret,'url'))
  50                         notice( t('No browser URL could be matched to this address.') . EOL);
  51                 if(strpos($url,'@') !== false)
  52                         notice('Unable to match @-style Identity Address with a known protocol or email contact');
  53                 goaway($_SESSION['return_url']);
  54         }
  55
  56
  57         if(! $ret['notify']) {
  58                 notice( t('Limited profile. This person will be unable to receive direct/personal notifications from you.') . EOL);
  59         }
  60
  61         $writeable = ((($ret['network'] === NETWORK_OSTATUS) && ($ret['notify'])) ? 1 : 0);
  62         if($ret['network'] === NETWORK_MAIL) {
  63                 $writeable = 1;
  64
  65         }
  66         // check if we already have a contact
  67         // the poll url is more reliable than the profile url, as we may have
  68         // indirect links or webfinger links
  69
  70         $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `poll` = '%s' LIMIT 1",
  71                 intval(local_user()),
  72                 dbesc($ret['poll'])
  73         );
  74
  75         if(count($r)) {
  76                 // update contact
  77                 if($r[0]['rel'] == REL_VIP) {
  78                         q("UPDATE `contact` SET `rel` = %d , `readonly` = 0 WHERE `id` = %d AND `uid` = %d LIMIT 1",
  79                                 intval(REL_BUD),
  80                                 intval($r[0]['id']),
  81                                 intval(local_user())
  82                         );
  83                 }
  84         }
  85         else {
  86                 // create contact record
  87                 $r = q("INSERT INTO `contact` ( `uid`, `created`, `url`, `addr`, `alias`, `notify`, `poll`, `name`, `nick`, `photo`, `network`, `rel`, `priority`,
  88                         `writable`, `blocked`, `readonly`, `pending` )
  89                         VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, %d, 0, 0, 0 ) ",
  90                         intval(local_user()),
  91                         dbesc(datetime_convert()),
  92                         dbesc($ret['url']),
  93                         dbesc($ret['addr']),
  94                         dbesc($ret['alias']),
  95                         dbesc($ret['notify']),
  96                         dbesc($ret['poll']),
  97                         dbesc($ret['name']),
  98                         dbesc($ret['nick']),
  99                         dbesc($ret['photo']),
 100                         dbesc($ret['network']),
 101                         intval(($ret['network'] === NETWORK_MAIL) ? REL_BUD : REL_FAN),
 102                         intval($ret['priority']),
 103                         intval($writeable)
 104                 );
 105         }
 106
 107         $r = q("SELECT * FROM `contact` WHERE `url` = '%s' AND `uid` = %d LIMIT 1",
 108                 dbesc($ret['url']),
 109                 intval(local_user())
 110         );
 111
 112         if(! count($r)) {
 113                 notice( t('Unable to retrieve contact information.') . EOL);
 114                 goaway($_SESSION['return_url']);
 115                 // NOTREACHED
 116         }
 117
 118         $contact = $r[0];
 119         $contact_id  = $r[0]['id'];
 120
 121         require_once("Photo.php");
 122
 123         $photos = import_profile_photo($ret['photo'],local_user(),$contact_id);
 124
 125         $r = q("UPDATE `contact` SET `photo` = '%s',
 126                         `thumb` = '%s',
 127                         `micro` = '%s',
 128                         `name-date` = '%s',
 129                         `uri-date` = '%s',
 130                         `avatar-date` = '%s'
 131                         WHERE `id` = %d LIMIT 1
 132                 ",
 133                         dbesc($photos[0]),
 134                         dbesc($photos[1]),
 135                         dbesc($photos[2]),
 136                         dbesc(datetime_convert()),
 137                         dbesc(datetime_convert()),
 138                         dbesc(datetime_convert()),
 139                         intval($contact_id)
 140                 );
 141
 142
 143         // pull feed and consume it, which should subscribe to the hub.
 144
 145         proc_run('php',"include/poller.php","$contact_id");
 146
 147         // create a follow slap
 148
 149         $tpl = get_markup_template('follow_slap.tpl');
 150         $slap = replace_macros($tpl, array(
 151                 '$name' => $a->user['username'],
 152                 '$profile_page' => $a->get_baseurl() . '/profile/' . $a->user['nickname'],
 153                 '$photo' => $a->contact['photo'],
 154                 '$thumb' => $a->contact['thumb'],
 155                 '$published' => datetime_convert('UTC','UTC', 'now', ATOM_TIME),
 156                 '$item_id' => 'urn:X-dfrn:' . $a->get_hostname() . ':follow:' . random_string(),
 157                 '$title' => '',
 158                 '$type' => 'text',
 159                 '$content' => t('following'),
 160                 '$nick' => $a->user['nickname'],
 161                 '$verb' => ACTIVITY_FOLLOW,
 162                 '$ostat_follow' => ''
 163         ));
 164
 165         $r = q("SELECT `contact`.*, `user`.* FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
 166                         WHERE `user`.`uid` = %d AND `contact`.`self` = 1 LIMIT 1",
 167                         intval(local_user())
 168         );
 169
 170
 171         if((count($r)) && (x($contact,'notify')) && (strlen($contact['notify']))) {
 172                 require_once('include/salmon.php');
 173                 slapper($r[0],$contact['notify'],$slap);
 174         }
 175
 176         goaway($_SESSION['return_url']);
 177         // NOTREACHED
 178 }