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         $url = notags(trim($_POST['url']));
  14
  15         if($url) {
  16                 $links = lrdd($url);
  17                 if(count($links)) {
  18                         foreach($links as $link) {
  19                                 if($link['@attributes']['rel'] === NAMESPACE_DFRN)
  20                                         $dfrn = $link['@attributes']['href'];
  21                                 if($link['@attributes']['rel'] === 'salmon')
  22                                         $notify = $link['@attributes']['href'];
  23                                 if($link['@attributes']['rel'] === NAMESPACE_FEED)
  24                                         $poll = $link['@attributes']['href'];
  25                                 if($link['@attributes']['rel'] === 'http://microformats.org/profile/hcard')
  26                                         $hcard = $link['@attributes']['href'];
  27                                 if($link['@attributes']['rel'] === 'http://webfinger.net/rel/profile-page')
  28                                         $profile = $link['@attributes']['href'];
  29
  30                         }
  31                 }
  32         }
  33
  34         // If we find a DFRN site, send our subscriber to the other person's
  35         // dfrn_request page and all the other details will get sorted.
  36
  37         if(strlen($dfrn)) {
  38                 $ret = scrape_dfrn($dfrn);
  39                 if(is_array($ret) && x($ret,'dfrn-request')) {
  40                         if(strlen($a->path))
  41                                 $myaddr = urlencode($a->get_baseurl() . '/profile/' . $a->user['nickname']);
  42                         else
  43                                 $myaddr = urlencode($a->user['nickname'] . '@' . $a->get_hostname());
  44
  45                         goaway($ret['dfrn-request'] . "&address=$myaddr");
  46
  47                         // NOTREACHED
  48                 }
  49         }
  50
  51         if($hcard) {
  52                 $vcard = scrape_vcard($hcard);
  53         }
  54
  55         if(! $profile)
  56                 $profile = $url;
  57
  58         // do we have enough information?
  59
  60         if(! x($vcard,'fn'))
  61                 if(x($vcard,'nick'))
  62                         $vcard['fn'] = $vcard['nick'];
  63
  64         if(! ((x($vcard['fn'])) && ($poll) && ($notify) && ($profile))) {
  65                 notice( t('The profile address specified does not provide adequate information.') . EOL);
  66                 goaway($_SESSION['return_url']);
  67         }
  68
  69         if(! x($vcard,'photo'))
  70                 $vcard['photo'] = $a->get_baseurl() . '/images/default-profile.jpg' ;
  71
  72         // check if we already have a contact
  73
  74         $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `poll` = '%s' LIMIT 1",
  75                 intval(local_user()),
  76                 dbesc($poll)
  77         );
  78         if($r) {
  79                 // update contact
  80                 if($r[0]['rel'] == REL_VIP) {
  81                         q("UPDATE `contact` SET `rel` = %d WHERE `id` = %d AND `uid` = %d LIMIT 1",
  82                                 intval(REL_BUD),
  83                                 intval($r[0]['id']),
  84                                 intval(local_user())
  85                         );
  86                 }
  87         }
  88         else {
  89                 // create contact record
  90                 $r = q("INSERT INTO `contact` ( `uid`, `created`, `url`, `notify`, `poll`, `name`, `nick`, `photo`, `network`, `rel`,
  91                         `blocked`, `readonly`, `pending` )
  92                         VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, 0, 0, 0 ) ",
  93                         intval(local_user()),
  94                         dbesc(datetime_convert()),
  95                         dbesc($profile),
  96                         dbesc($notify),
  97                         dbesc($poll),
  98                         dbesc($vcard['fn']),
  99                         dbesc($vcard['nick']),
 100                         dbesc($vcard['photo']),
 101                         dbesc('stat'),
 102                         intval(REL_FAN)
 103                 );
 104         }
 105         $r = q("SELECT * FROM `contact` WHERE `url` = '%s' AND `uid` = %d LIMIT 1",
 106                 dbesc($profile),
 107                 intval(local_user())
 108         );
 109         if(! count($r)) {
 110                 notice( t('Unable to retrieve contact information.') . EOL);
 111                 goaway($_SESSION['return_url']);
 112                 // NOTREACHED
 113         }
 114
 115         $contact = $r[0];
 116         $contact_id  = $r[0]['id'];
 117
 118         require_once("Photo.php");
 119
 120         $photo_failure = false;
 121
 122         $filename = basename($vcard['photo']);
 123         $img_str = fetch_url($vcard['photo'],true);
 124         $img = new Photo($img_str);
 125         if($img->is_valid()) {
 126
 127                 $img->scaleImageSquare(175);
 128
 129                 $hash = photo_new_resource();
 130
 131                 $r = $img->store(local_user(), $contact_id, $hash, $filename, t('Contact Photos'), 4 );
 132
 133                 if($r === false)
 134                         $photo_failure = true;
 135
 136                 $img->scaleImage(80);
 137
 138                 $r = $img->store(local_user(), $contact_id, $hash, $filename, t('Contact Photos'), 5 );
 139
 140                 if($r === false)
 141                         $photo_failure = true;
 142
 143                 $photo = $a->get_baseurl() . '/photo/' . $hash . '-4.jpg';
 144                 $thumb = $a->get_baseurl() . '/photo/' . $hash . '-5.jpg';
 145         }
 146         else
 147                 $photo_failure = true;
 148
 149         if($photo_failure) {
 150                 $photo = $a->get_baseurl() . '/images/default-profile.jpg';
 151                 $thumb = $a->get_baseurl() . '/images/default-profile-sm.jpg';
 152         }
 153
 154         $r = q("UPDATE `contact` SET `photo` = '%s',
 155                         `thumb` = '%s',
 156                         `name-date` = '%s',
 157                         `uri-date` = '%s',
 158                         `avatar-date` = '%s'
 159                         WHERE `id` = %d LIMIT 1
 160                 ",
 161                         dbesc($photo),
 162                         dbesc($thumb),
 163                         dbesc(datetime_convert()),
 164                         dbesc(datetime_convert()),
 165                         dbesc(datetime_convert()),
 166                         intval($contact_id)
 167                 );
 168
 169
 170         // pull feed and consume it, which should subscribe to the hub.
 171
 172
 173         // create a follow slap
 174
 175         $tpl = load_view_file('view/follow_slap.tpl');
 176         $slap = replace_macros($tpl, array(
 177                 '$name' => $a->user['username'],
 178                 '$profile_page' => $a->get_baseurl() . '/profile/' . $a->user['nickname'],
 179                 '$photo' => $a->contact['photo'],
 180                 '$thumb' => $a->contact['thumb'],
 181                 '$published' => datetime_convert('UTC','UTC', 'now', ATOM_TIME),
 182                 '$item_id' => 'urn:X-dfrn:' . $a->get_hostname() . ':follow:' . random_string(),
 183                 '$title' => '',
 184                 '$type' => 'text',
 185                 '$content' => t('following'),
 186                 '$nick' => $a->user['nickname'],
 187                 '$verb' => ACTIVITY_FOLLOW
 188         ));
 189
 190         $r = q("SELECT `contact`.*, `user`.* FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
 191                         WHERE `user`.`uid` = %d AND `contact`.`self` = 1 LIMIT 1",
 192                         intval(local_user())
 193         );
 194
 195         require_once('include/salmon.php');
 196         slapper($r[0],$contact,$slap);
 197
 198         goaway($_SESSION['return_url']);
 199         // NOTREACHED
 200 }