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)) || ($res->dfrn_id != $contact['dfrn-id']))
  88                         continue;
  89
  90                 $postvars = array();
  91
  92                 $postvars['dfrn_id'] = $contact['dfrn-id'];
  93                 $challenge = hex2bin($res->challenge);
  94
  95                 openssl_public_decrypt($challenge,$postvars['challenge'],$contact['pubkey']);
  96
  97                 $xml = post_url($contact['poll'],$postvars);
  98
  99 echo "XML response:" . $xml . "\r\n";
 100 echo "Length:" . strlen($xml) . "\r\n";
 101
 102                 if(! strlen($xml)) {
 103                         // an empty response may mean there's nothing new - record the fact that we checked
 104                         $r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
 105                                 dbesc(datetime_convert()),
 106                                 intval($contact['id'])
 107                         );
 108                         continue;
 109                 }
 110
 111                 $feed = new SimplePie();
 112                 $feed->set_raw_data($xml);
 113                 $feed->enable_order_by_date(false);
 114                 $feed->init();
 115
 116                 foreach($feed->get_items() as $item) {
 117
 118                         $deleted = false;
 119
 120                         $rawdelete = $item->get_item_tags("http://purl.org/atompub/tombstones/1.0", 'deleted-entry');
 121                         if(isset($rawdelete[0]['attribs']['']['ref'])) {
 122                                 $uri = $rawthread[0]['attribs']['']['ref'];
 123                                 $deleted = true;
 124                                 if(isset($rawdelete[0]['attribs']['']['when'])) {
 125                                         $when = $rawthread[0]['attribs']['']['when'];
 126                                         $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
 127                                 }
 128                                 else
 129                                         $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
 130                         }
 131                         if($deleted) {
 132                                 $r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 133                                         dbesc($uri),
 134                                         intval($importer['uid'])
 135                                 );
 136                                 if(count($r)) {
 137                                         if($r[0]['uri'] == $r[0]['parent-uri']) {
 138                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s'
 139                                                         WHERE `parent-uri` = '%s'",
 140                                                         dbesc($when),
 141                                                         dbesc($r[0]['uri'])
 142                                                 );
 143                                         }
 144                                         else {
 145                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s'
 146                                                         WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 147                                                         dbesc($when),
 148                                                         dbesc($uri),
 149                                                         intval($importer['uid'])
 150                                                 );
 151                                         }
 152                                 }
 153                                 continue;
 154                         }
 155
 156
 157                         $is_reply = false;
 158                         $item_id = $item->get_id();
 159                         $rawthread = $item->get_item_tags("http://purl.org/syndication/thread/1.0",'in-reply-to');
 160                         if(isset($rawthread[0]['attribs']['']['ref'])) {
 161                                 $is_reply = true;
 162                                 $parent_uri = $rawthread[0]['attribs']['']['ref'];
 163                         }
 164
 165
 166                         if($is_reply) {
 167
 168                                 // Have we seen it? If not, import it.
 169
 170                                 $item_id = $item->get_id();
 171
 172                                 $r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 173                                         dbesc($item_id),
 174                                         intval($importer['uid'])
 175                                 );
 176                                 // FIXME update content if 'updated' changes
 177                                 if(count($r)) {
 178                                         $allow = $item->get_item_tags('http://purl.org/macgirvin/dfrn/1.0','comment-allow');
 179                                         if($allow && $allow[0]['data'] != $r[0]['last-child']) {
 180                                                 $r = q("UPDATE `item` SET `last-child` = %d WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 181                                                         intval($allow[0]['data']),
 182                                                         dbesc($item_id),
 183                                                         intval($importer['uid'])
 184                                                 );
 185                                         }
 186                                         continue;
 187                                 }
 188                                 $datarray = get_atom_elements($item);
 189                                 $datarray['parent-uri'] = $parent_uri;
 190                                 $datarray['uid'] = $importer['uid'];
 191                                 $datarray['contact-id'] = $contact['id'];
 192                                 $r = post_remote($a,$datarray);
 193                                 continue;
 194                         }
 195
 196                         else {
 197                                 // Head post of a conversation. Have we seen it? If not, import it.
 198
 199                                 $item_id = $item->get_id();
 200                                 $r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 201                                         dbesc($item_id),
 202                                         intval($importer['uid'])
 203                                 );
 204                                 if(count($r)) {
 205                                         $allow = $item->get_item_tags('http://purl.org/macgirvin/dfrn/1.0','comment-allow');
 206                                         if($allow && $allow[0]['data'] != $r[0]['last-child']) {
 207                                                 $r = q("UPDATE `item` SET `last-child` = %d WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 208                                                         intval($allow[0]['data']),
 209                                                         dbesc($item_id),
 210                                                         intval($importer['uid'])
 211                                                 );
 212                                         }
 213                                         continue;
 214                                 }
 215
 216                                 $datarray = get_atom_elements($item);
 217                                 $datarray['parent-uri'] = $item_id;
 218                                 $datarray['uid'] = $importer['uid'];
 219                                 $datarray['contact-id'] = $contact['id'];
 220                                 $r = post_remote($a,$datarray);
 221                                 continue;
 222
 223                         }
 224
 225                 }
 226
 227                 $r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
 228                         dbesc(datetime_convert()),
 229                         intval($contact['id'])
 230                 );
 231
 232         }
 233
 234         killme();
 235
 236
 237