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=$myaddr");
  34
  35                 // NOTREACHED
  36         }
  37         else {
  38                 if(get_config('system','dfrn_only')) {
  39                         notice( t('This site is not configured to allow communications with other networks.') . EOL);
  40                         notice( t('No compatible communication protocols or feeds were discovered.') . EOL);
  41                         goaway($_SESSION['return_url']);
  42                 }
  43         }
  44
  45         // do we have enough information?
  46
  47         if(! ((x($ret,'name')) && (x($ret,'poll')) && ((x($ret,'url')) || (x($ret,'addr'))))) {
  48                 notice( t('The profile address specified does not provide adequate information.') . EOL);
  49                 if(! x($ret,'poll'))
  50                         notice( t('No compatible communication protocols or feeds were discovered.') . EOL);
  51                 if(! x($ret,'name'))
  52                         notice( t('An author or name was not found.') . EOL);
  53                 if(! x($ret,'url'))
  54                         notice( t('No browser URL could be matched to this address.') . EOL);
  55                 if(strpos($url,'@') !== false)
  56                         notice('Unable to match @-style Identity Address with a known protocol or email contact');
  57                 goaway($_SESSION['return_url']);
  58         }
  59
  60         if($ret['network'] === NETWORK_OSTATUS && get_config('system','ostatus_disabled')) {
  61                 notice( t('Communication options with this network have been restricted.') . EOL);
  62                 $ret['notify'] = '';
  63         }
  64
  65         if(! $ret['notify']) {
  66                 notice( t('Limited profile. This person will be unable to receive direct/personal notifications from you.') . EOL);
  67         }
  68
  69         $writeable = ((($ret['network'] === NETWORK_OSTATUS) && ($ret['notify'])) ? 1 : 0);
  70         if($ret['network'] === NETWORK_MAIL) {
  71                 $writeable = 1;
  72
  73         }
  74         // check if we already have a contact
  75         // the poll url is more reliable than the profile url, as we may have
  76         // indirect links or webfinger links
  77
  78         $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `poll` = '%s' LIMIT 1",
  79                 intval(local_user()),
  80                 dbesc($ret['poll'])
  81         );
  82
  83         if(count($r)) {
  84                 // update contact
  85                 if($r[0]['rel'] == REL_VIP) {
  86                         q("UPDATE `contact` SET `rel` = %d , `readonly` = 0 WHERE `id` = %d AND `uid` = %d LIMIT 1",
  87                                 intval(REL_BUD),
  88                                 intval($r[0]['id']),
  89                                 intval(local_user())
  90                         );
  91                 }
  92         }
  93         else {
  94                 // create contact record
  95                 $r = q("INSERT INTO `contact` ( `uid`, `created`, `url`, `addr`, `alias`, `notify`, `poll`, `name`, `nick`, `photo`, `network`, `rel`, `priority`,
  96                         `writable`, `blocked`, `readonly`, `pending` )
  97                         VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, %d, 0, 0, 0 ) ",
  98                         intval(local_user()),
  99                         dbesc(datetime_convert()),
 100                         dbesc($ret['url']),
 101                         dbesc($ret['addr']),
 102                         dbesc($ret['alias']),
 103                         dbesc($ret['notify']),
 104                         dbesc($ret['poll']),
 105                         dbesc($ret['name']),
 106                         dbesc($ret['nick']),
 107                         dbesc($ret['photo']),
 108                         dbesc($ret['network']),
 109                         intval(($ret['network'] === NETWORK_MAIL) ? REL_BUD : REL_FAN),
 110                         intval($ret['priority']),
 111                         intval($writeable)
 112                 );
 113         }
 114
 115         $r = q("SELECT * FROM `contact` WHERE `url` = '%s' AND `uid` = %d LIMIT 1",
 116                 dbesc($ret['url']),
 117                 intval(local_user())
 118         );
 119
 120         if(! count($r)) {
 121                 notice( t('Unable to retrieve contact information.') . EOL);
 122                 goaway($_SESSION['return_url']);
 123                 // NOTREACHED
 124         }
 125
 126         $contact = $r[0];
 127         $contact_id  = $r[0]['id'];
 128
 129         require_once("Photo.php");
 130
 131         $photos = import_profile_photo($ret['photo'],local_user(),$contact_id);
 132
 133         $r = q("UPDATE `contact` SET `photo` = '%s',
 134                         `thumb` = '%s',
 135                         `micro` = '%s',
 136                         `name-date` = '%s',
 137                         `uri-date` = '%s',
 138                         `avatar-date` = '%s'
 139                         WHERE `id` = %d LIMIT 1
 140                 ",
 141                         dbesc($photos[0]),
 142                         dbesc($photos[1]),
 143                         dbesc($photos[2]),
 144                         dbesc(datetime_convert()),
 145                         dbesc(datetime_convert()),
 146                         dbesc(datetime_convert()),
 147                         intval($contact_id)
 148                 );
 149
 150
 151         // pull feed and consume it, which should subscribe to the hub.
 152
 153         proc_run('php',"include/poller.php","$contact_id");
 154
 155         // create a follow slap
 156
 157         $tpl = get_markup_template('follow_slap.tpl');
 158         $slap = replace_macros($tpl, array(
 159                 '$name' => $a->user['username'],
 160                 '$profile_page' => $a->get_baseurl() . '/profile/' . $a->user['nickname'],
 161                 '$photo' => $a->contact['photo'],
 162                 '$thumb' => $a->contact['thumb'],
 163                 '$published' => datetime_convert('UTC','UTC', 'now', ATOM_TIME),
 164                 '$item_id' => 'urn:X-dfrn:' . $a->get_hostname() . ':follow:' . random_string(),
 165                 '$title' => '',
 166                 '$type' => 'text',
 167                 '$content' => t('following'),
 168                 '$nick' => $a->user['nickname'],
 169                 '$verb' => ACTIVITY_FOLLOW,
 170                 '$ostat_follow' => ''
 171         ));
 172
 173         $r = q("SELECT `contact`.*, `user`.* FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
 174                         WHERE `user`.`uid` = %d AND `contact`.`self` = 1 LIMIT 1",
 175                         intval(local_user())
 176         );
 177
 178
 179         if((count($r)) && (x($contact,'notify')) && (strlen($contact['notify']))) {
 180                 require_once('include/salmon.php');
 181                 slapper($r[0],$contact['notify'],$slap);
 182         }
 183
 184         goaway($_SESSION['return_url']);
 185         // NOTREACHED
 186 }