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, $db_data);
  11         unset($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         $contacts = q("SELECT * FROM `contact`
  23                 WHERE `dfrn-id` != '' AND `self` = 0 AND `blocked` = 0
  24                 AND `readonly` = 0 ORDER BY RAND()");
  25
  26         if(! count($contacts))
  27                 killme();
  28
  29         foreach($contacts as $contact) {
  30
  31                 if($contact['priority']) {
  32
  33                         $update = false;
  34                         $t = $contact['last-update'];
  35
  36                         switch ($contact['priority']) {
  37                                 case 5:
  38                                         if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', t . " + 1 month"))
  39                                                 $update = true;
  40                                         break;
  41                                 case 4:
  42                                         if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', t . " + 1 week"))
  43                                                 $update = true;
  44                                         break;
  45                                 case 3:
  46                                         if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', t . " + 1 day"))
  47                                                 $update = true;
  48                                         break;
  49                                 case 2:
  50                                         if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', t . " + 12 hour"))
  51                                                 $update = true;
  52                                         break;
  53                                 case 1:
  54                                 default:
  55                                         if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', t . " + 1 hour"))
  56                                                 $update = true;
  57                                         break;
  58                         }
  59                         if(! $update)
  60                                 continue;
  61                 }
  62
  63
  64                 $importer_uid = $contact['uid'];
  65
  66                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
  67                         intval($importer_uid)
  68                 );
  69                 if(! count($r))
  70                         continue;
  71
  72                 $importer = $r[0];
  73
  74                 $last_update = (($contact['last-update'] == '0000-00-00 00:00:00')
  75                         ? datetime_convert('UTC','UTC','now - 30 days','Y-m-d\TH:i:s\Z')
  76                         : datetime_convert('UTC','UTC',$contact['last-update'],'Y-m-d\TH:i:s\Z'));
  77
  78                 $url = $contact['poll'] . '?dfrn_id=' . $contact['dfrn-id'] . '&type=data&last_update=' . $last_update ;
  79
  80                 $xml = fetch_url($url);
  81 echo "URL: " . $url;
  82 echo "XML: " . $xml;
  83                 if(! $xml)
  84                         continue;
  85
  86                 $res = simplexml_load_string($xml);
  87
  88                 if((intval($res->status) != 0) || (! strlen($res->challenge)) || (! strlen($res->dfrn_id)))
  89                         continue;
  90
  91                 $postvars = array();
  92
  93                 $sent_dfrn_id = hex2bin($res->dfrn_id);
  94
  95                 $final_dfrn_id = '';
  96                 openssl_public_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['pubkey']);
  97                 $final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
  98                 if($final_dfrn_id != $contact['dfrn-id']) {
  99                         // did not decode properly - cannot trust this site
 100                         continue;
 101                 }
 102
 103                 $postvars['dfrn_id'] = $contact['dfrn-id'];
 104                 $challenge = hex2bin($res->challenge);
 105
 106                 openssl_public_decrypt($challenge,$postvars['challenge'],$contact['pubkey']);
 107
 108                 $xml = post_url($contact['poll'],$postvars);
 109
 110 echo "XML response:" . $xml . "\r\n";
 111 echo "Length:" . strlen($xml) . "\r\n";
 112
 113                 if(! strlen($xml)) {
 114                         // an empty response may mean there's nothing new - record the fact that we checked
 115                         $r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
 116                                 dbesc(datetime_convert()),
 117                                 intval($contact['id'])
 118                         );
 119                         continue;
 120                 }
 121
 122                 $feed = new SimplePie();
 123                 $feed->set_raw_data($xml);
 124                 $feed->enable_order_by_date(false);
 125                 $feed->init();
 126
 127                 $photo_rawupdate = $feed->get_feed_tags(NAMESPACE_DFRN,'icon-updated');
 128                 if($photo_rawupdate) {
 129                         $photo_timestamp = datetime_convert('UTC','UTC',$photo_rawupdate[0]['data']);
 130                         $photo_url = $feed->get_image_url();
 131                         if(strlen($photo_url) && $photo_timestamp > $contact['avatar-date']) {
 132
 133                                 require_once("Photo.php");
 134
 135                                 $photo_failure = false;
 136
 137                                 $r = q("SELECT `resource-id` FROM `photo` WHERE `contact-id` = %d AND `uid` = %d LIMIT 1",
 138                                         intval($contact['id']),
 139                                         intval($contact['uid'])
 140                                 );
 141                                 if(count($r)) {
 142                                         $resource_id = $r[0]['resource-id'];
 143                                         $img_str = fetch_url($photo_url,true);
 144                                         $img = new Photo($img_str);
 145                                         if($img) {
 146                                                 q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND contact-id` = %d AND `uid` = %d",
 147                                                         dbesc($resource_id),
 148                                                         intval($contact['id']),
 149                                                         intval($contact['uid'])
 150                                                 );
 151
 152                                                 $img->scaleImageSquare(175);
 153
 154                                                 $hash = $resource_id;
 155
 156                                                 $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), t('Contact Photos') , 4);
 157
 158                                                 $img->scaleImage(80);
 159                                                 $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), t('Contact Photos') , 5);
 160                                                 if($r)
 161                                                         q("UPDATE `contact` SET `avatar-date` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
 162                                                                 dbesc(datetime_convert()),
 163                                                                 intval($contact['uid']),
 164                                                                 intval($contact['id'])
 165                                                         );
 166                                         }
 167                                 }
 168                         }
 169                 }
 170
 171
 172                 foreach($feed->get_items() as $item) {
 173
 174                         $deleted = false;
 175
 176                         $rawdelete = $item->get_item_tags("http://purl.org/atompub/tombstones/1.0", 'deleted-entry');
 177                         if(isset($rawdelete[0]['attribs']['']['ref'])) {
 178                                 $uri = $rawthread[0]['attribs']['']['ref'];
 179                                 $deleted = true;
 180                                 if(isset($rawdelete[0]['attribs']['']['when'])) {
 181                                         $when = $rawthread[0]['attribs']['']['when'];
 182                                         $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
 183                                 }
 184                                 else
 185                                         $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
 186                         }
 187                         if($deleted) {
 188                                 $r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 189                                         dbesc($uri),
 190                                         intval($importer['uid'])
 191                                 );
 192                                 if(count($r)) {
 193                                         if($r[0]['uri'] == $r[0]['parent-uri']) {
 194                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s',
 195                                                         `body` = '', `title` = ''
 196                                                         WHERE `parent-uri` = '%s'",
 197                                                         dbesc($when),
 198                                                         dbesc($r[0]['uri'])
 199                                                 );
 200                                         }
 201                                         else {
 202                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s',
 203                                                         `body` = '', `title` = ''
 204                                                         WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 205                                                         dbesc($when),
 206                                                         dbesc($uri),
 207                                                         intval($importer['uid'])
 208                                                 );
 209                                         }
 210                                 }
 211                                 continue;
 212                         }
 213
 214
 215                         $is_reply = false;
 216                         $item_id = $item->get_id();
 217                         $rawthread = $item->get_item_tags("http://purl.org/syndication/thread/1.0",'in-reply-to');
 218                         if(isset($rawthread[0]['attribs']['']['ref'])) {
 219                                 $is_reply = true;
 220                                 $parent_uri = $rawthread[0]['attribs']['']['ref'];
 221                         }
 222
 223
 224                         if($is_reply) {
 225
 226                                 // Have we seen it? If not, import it.
 227
 228                                 $item_id = $item->get_id();
 229
 230                                 $r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 231                                         dbesc($item_id),
 232                                         intval($importer['uid'])
 233                                 );
 234                                 // FIXME update content if 'updated' changes
 235                                 if(count($r)) {
 236                                         $allow = $item->get_item_tags('http://purl.org/macgirvin/dfrn/1.0','comment-allow');
 237                                         if($allow && $allow[0]['data'] != $r[0]['last-child']) {
 238                                                 $r = q("UPDATE `item` SET `last-child` = %d WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 239                                                         intval($allow[0]['data']),
 240                                                         dbesc($item_id),
 241                                                         intval($importer['uid'])
 242                                                 );
 243                                         }
 244                                         continue;
 245                                 }
 246                                 $datarray = get_atom_elements($item);
 247                                 $datarray['parent-uri'] = $parent_uri;
 248                                 $datarray['uid'] = $importer['uid'];
 249                                 $datarray['contact-id'] = $contact['id'];
 250                                 $r = post_remote($a,$datarray);
 251                                 continue;
 252                         }
 253
 254                         else {
 255                                 // Head post of a conversation. Have we seen it? If not, import it.
 256
 257                                 $item_id = $item->get_id();
 258                                 $r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 259                                         dbesc($item_id),
 260                                         intval($importer['uid'])
 261                                 );
 262                                 if(count($r)) {
 263                                         $allow = $item->get_item_tags('http://purl.org/macgirvin/dfrn/1.0','comment-allow');
 264                                         if($allow && $allow[0]['data'] != $r[0]['last-child']) {
 265                                                 $r = q("UPDATE `item` SET `last-child` = %d WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 266                                                         intval($allow[0]['data']),
 267                                                         dbesc($item_id),
 268                                                         intval($importer['uid'])
 269                                                 );
 270                                         }
 271                                         continue;
 272                                 }
 273
 274                                 $datarray = get_atom_elements($item);
 275                                 $datarray['parent-uri'] = $item_id;
 276                                 $datarray['uid'] = $importer['uid'];
 277                                 $datarray['contact-id'] = $contact['id'];
 278                                 $r = post_remote($a,$datarray);
 279                                 continue;
 280
 281                         }
 282
 283                 }
 284
 285                 $r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
 286                         dbesc(datetime_convert()),
 287                         intval($contact['id'])
 288                 );
 289
 290         }
 291
 292         killme();
 293
 294
 295