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