include/poller.php

   1 <?php
   2
   3
   4 require_once('boot.php');
   5
   6 $a = new App;
   7
   8 @include('.htconfig.php');
   9 require_once('dba.php');
  10 $db = new dba($db_host, $db_user, $db_pass, $db_data, $install);
  11         unset($db_host, $db_user, $db_pass, $db_data);
  12
  13 require_once('session.php');
  14 require_once('datetime.php');
  15 require_once('simplepie/simplepie.inc');
  16 require_once('include/items.php');
  17
  18
  19
  20         $a->set_baseurl(get_config('system','url'));
  21
  22         $contacts = q("SELECT * FROM `contact` WHERE `dfrn-id` != '' AND `self` = 0 AND `blocked` = 0 AND `readonly` = 0 ORDER BY RAND()");
  23
  24         if(! count($contacts))
  25                 killme();
  26
  27         foreach($contacts as $contact) {
  28
  29                 if($contact['priority']) {
  30
  31                         $update = false;
  32                         $t = $contact['last-update'];
  33
  34                         switch ($contact['priority']) {
  35                                 case 5:
  36                                         if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', t . " + 1 month"))
  37                                                 $update = true;
  38                                         break;
  39                                 case 4:
  40                                         if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', t . " + 1 week"))
  41                                                 $update = true;
  42                                         break;
  43                                 case 3:
  44                                         if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', t . " + 1 day"))
  45                                                 $update = true;
  46                                         break;
  47                                 case 2:
  48                                         if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', t . " + 12 hour"))
  49                                                 $update = true;
  50                                         break;
  51                                 case 1:
  52                                 default:
  53                                         if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', t . " + 1 hour"))
  54                                                 $update = true;
  55                                         break;
  56                         }
  57                         if(! $update)
  58                                 continue;
  59                 }
  60
  61
  62                 $importer_uid = $contact['uid'];
  63
  64                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
  65                         intval($importer_uid)
  66                 );
  67                 if(! count($r))
  68                         continue;
  69
  70                 $importer = $r[0];
  71
  72                 $last_update = (($contact['last-update'] == '0000-00-00 00:00:00')
  73                         ? datetime_convert('UTC','UTC','now - 30 days','Y-m-d\TH:i:s\Z')
  74                         : datetime_convert('UTC','UTC',$contact['last-update'],'Y-m-d\TH:i:s\Z'));
  75
  76                 $url = $contact['poll'] . '?dfrn_id=' . $contact['dfrn-id'] . '&type=data&last_update=' . $last_update ;
  77
  78                 $xml = fetch_url($url);
  79 echo "URL: " . $url;
  80 echo "XML: " . $xml;
  81                 if(! $xml)
  82                         continue;
  83
  84                 $res = simplexml_load_string($xml);
  85
  86                 if((intval($res->status) != 0) || (! strlen($res->challenge)) || (! strlen($res->dfrn_id)))
  87                         continue;
  88
  89                 $postvars = array();
  90
  91                 $sent_dfrn_id = hex2bin($res->dfrn_id);
  92
  93                 $final_dfrn_id = '';
  94                 openssl_public_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['pubkey']);
  95                 $final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
  96                 if($final_dfrn_id != $contact['dfrn-id']) {
  97                         // did not decode properly - cannot trust this site
  98                         continue;
  99                 }
 100
 101                 $postvars['dfrn_id'] = $contact['dfrn-id'];
 102                 $challenge = hex2bin($res->challenge);
 103
 104                 openssl_public_decrypt($challenge,$postvars['challenge'],$contact['pubkey']);
 105
 106                 $xml = post_url($contact['poll'],$postvars);
 107
 108 echo "XML response:" . $xml . "\r\n";
 109 echo "Length:" . strlen($xml) . "\r\n";
 110
 111                 if(! strlen($xml)) {
 112                         // an empty response may mean there's nothing new - record the fact that we checked
 113                         $r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
 114                                 dbesc(datetime_convert()),
 115                                 intval($contact['id'])
 116                         );
 117                         continue;
 118                 }
 119
 120                 $feed = new SimplePie();
 121                 $feed->set_raw_data($xml);
 122                 $feed->enable_order_by_date(false);
 123                 $feed->init();
 124
 125                 $photo_rawupdate = $feed->get_feed_tags(NAMESPACE_DFRN,'icon-updated');
 126                 if($photo_rawupdate) {
 127                         $photo_timestamp = datetime_convert('UTC','UTC',$photo_rawupdate[0]['data']);
 128                         $photo_url = $feed->get_image_url();
 129                         if(strlen($photo_url) && $photo_timestamp > $contact['avatar-date']) {
 130
 131                                 require_once("Photo.php");
 132
 133                                 $photo_failure = false;
 134
 135                                 $r = q("SELECT `resource-id` FROM `photo` WHERE `contact-id` = %d AND `uid` = %d LIMIT 1",
 136                                         intval($contact['id']),
 137                                         intval($contact['uid'])
 138                                 );
 139                                 if(count($r)) {
 140                                         $resource_id = $r[0]['resource-id'];
 141                                         $img_str = fetch_url($photo_url,true);
 142                                         $img = new Photo($img_str);
 143                                         if($img) {
 144                                                 q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND contact-id` = %d AND `uid` = %d",
 145                                                         dbesc($resource_id),
 146                                                         intval($contact['id']),
 147                                                         intval($contact['uid'])
 148                                                 );
 149
 150                                                 $img->scaleImageSquare(175);
 151
 152                                                 $hash = $resource_id;
 153
 154                                                 $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), t('Contact Photos') , 4);
 155
 156                                                 $img->scaleImage(80);
 157                                                 $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), t('Contact Photos') , 5);
 158                                                 if($r)
 159                                                         q("UPDATE `contact` SET `avatar-date` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
 160                                                                 dbesc(datetime_convert()),
 161                                                                 intval($contact['uid']),
 162                                                                 intval($contact['id'])
 163                                                         );
 164                                         }
 165                                 }
 166                         }
 167                 }
 168
 169
 170                 foreach($feed->get_items() as $item) {
 171
 172                         $deleted = false;
 173
 174                         $rawdelete = $item->get_item_tags("http://purl.org/atompub/tombstones/1.0", 'deleted-entry');
 175                         if(isset($rawdelete[0]['attribs']['']['ref'])) {
 176                                 $uri = $rawthread[0]['attribs']['']['ref'];
 177                                 $deleted = true;
 178                                 if(isset($rawdelete[0]['attribs']['']['when'])) {
 179                                         $when = $rawthread[0]['attribs']['']['when'];
 180                                         $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
 181                                 }
 182                                 else
 183                                         $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
 184                         }
 185                         if($deleted) {
 186                                 $r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 187                                         dbesc($uri),
 188                                         intval($importer['uid'])
 189                                 );
 190                                 if(count($r)) {
 191                                         if($r[0]['uri'] == $r[0]['parent-uri']) {
 192                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s',
 193                                                         `body` = '', `title` = ''
 194                                                         WHERE `parent-uri` = '%s'",
 195                                                         dbesc($when),
 196                                                         dbesc($r[0]['uri'])
 197                                                 );
 198                                         }
 199                                         else {
 200                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s',
 201                                                         `body` = '', `title` = ''
 202                                                         WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 203                                                         dbesc($when),
 204                                                         dbesc($uri),
 205                                                         intval($importer['uid'])
 206                                                 );
 207                                         }
 208                                 }
 209                                 continue;
 210                         }
 211
 212
 213                         $is_reply = false;
 214                         $item_id = $item->get_id();
 215                         $rawthread = $item->get_item_tags("http://purl.org/syndication/thread/1.0",'in-reply-to');
 216                         if(isset($rawthread[0]['attribs']['']['ref'])) {
 217                                 $is_reply = true;
 218                                 $parent_uri = $rawthread[0]['attribs']['']['ref'];
 219                         }
 220
 221
 222                         if($is_reply) {
 223
 224                                 // Have we seen it? If not, import it.
 225
 226                                 $item_id = $item->get_id();
 227
 228                                 $r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 229                                         dbesc($item_id),
 230                                         intval($importer['uid'])
 231                                 );
 232                                 // FIXME update content if 'updated' changes
 233                                 if(count($r)) {
 234                                         $allow = $item->get_item_tags('http://purl.org/macgirvin/dfrn/1.0','comment-allow');
 235                                         if($allow && $allow[0]['data'] != $r[0]['last-child']) {
 236                                                 $r = q("UPDATE `item` SET `last-child` = %d WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 237                                                         intval($allow[0]['data']),
 238                                                         dbesc($item_id),
 239                                                         intval($importer['uid'])
 240                                                 );
 241                                         }
 242                                         continue;
 243                                 }
 244                                 $datarray = get_atom_elements($item);
 245                                 $datarray['parent-uri'] = $parent_uri;
 246                                 $datarray['uid'] = $importer['uid'];
 247                                 $datarray['contact-id'] = $contact['id'];
 248                                 $r = post_remote($a,$datarray);
 249                                 continue;
 250                         }
 251
 252                         else {
 253                                 // Head post of a conversation. Have we seen it? If not, import it.
 254
 255                                 $item_id = $item->get_id();
 256                                 $r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 257                                         dbesc($item_id),
 258                                         intval($importer['uid'])
 259                                 );
 260                                 if(count($r)) {
 261                                         $allow = $item->get_item_tags('http://purl.org/macgirvin/dfrn/1.0','comment-allow');
 262                                         if($allow && $allow[0]['data'] != $r[0]['last-child']) {
 263                                                 $r = q("UPDATE `item` SET `last-child` = %d WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 264                                                         intval($allow[0]['data']),
 265                                                         dbesc($item_id),
 266                                                         intval($importer['uid'])
 267                                                 );
 268                                         }
 269                                         continue;
 270                                 }
 271
 272                                 $datarray = get_atom_elements($item);
 273                                 $datarray['parent-uri'] = $item_id;
 274                                 $datarray['uid'] = $importer['uid'];
 275                                 $datarray['contact-id'] = $contact['id'];
 276                                 $r = post_remote($a,$datarray);
 277                                 continue;
 278
 279                         }
 280
 281                 }
 282
 283                 $r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
 284                         dbesc(datetime_convert()),
 285                         intval($contact['id'])
 286                 );
 287
 288         }
 289
 290         killme();
 291
 292
 293