include/poller.php

   1 <?php
   2
   3         $debugging = true;
   4
   5         require_once('boot.php');
   6
   7         $a = new App;
   8
   9         @include('.htconfig.php');
  10         require_once('dba.php');
  11         $db = new dba($db_host, $db_user, $db_pass, $db_data);
  12                 unset($db_host, $db_user, $db_pass, $db_data);
  13
  14         require_once('session.php');
  15         require_once('datetime.php');
  16         require_once('simplepie/simplepie.inc');
  17         require_once('include/items.php');
  18
  19         require_once('include/Contact.php');
  20
  21         $a->set_baseurl(get_config('system','url'));
  22
  23         $contacts = q("SELECT * FROM `contact`
  24                 WHERE ( `dfrn-id` != '' OR (`issued-id` != '' AND `duplex` = 1))
  25                 AND `self` = 0 AND `blocked` = 0 AND `readonly` = 0 ORDER BY RAND()");
  26
  27         if(! count($contacts))
  28                 killme();
  29
  30         foreach($contacts as $contact) {
  31
  32                 if($contact['priority']) {
  33
  34                         $update = false;
  35                         $t = $contact['last-update'];
  36
  37                         switch ($contact['priority']) {
  38                                 case 5:
  39                                         if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', t . " + 1 month"))
  40                                                 $update = true;
  41                                         break;
  42                                 case 4:
  43                                         if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', t . " + 1 week"))
  44                                                 $update = true;
  45                                         break;
  46                                 case 3:
  47                                         if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', t . " + 1 day"))
  48                                                 $update = true;
  49                                         break;
  50                                 case 2:
  51                                         if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', t . " + 12 hour"))
  52                                                 $update = true;
  53                                         break;
  54                                 case 1:
  55                                 default:
  56                                         if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', t . " + 1 hour"))
  57                                                 $update = true;
  58                                         break;
  59                         }
  60                         if(! $update)
  61                                 continue;
  62                 }
  63
  64
  65                 $importer_uid = $contact['uid'];
  66
  67                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
  68                         intval($importer_uid)
  69                 );
  70                 if(! count($r))
  71                         continue;
  72
  73                 $importer = $r[0];
  74
  75                 if($debugging)
  76                         echo "IMPORTER: {$importer['name']}";
  77
  78                 $last_update = (($contact['last-update'] == '0000-00-00 00:00:00')
  79                         ? datetime_convert('UTC','UTC','now - 30 days','Y-m-d\TH:i:s\Z')
  80                         : datetime_convert('UTC','UTC',$contact['last-update'],'Y-m-d\TH:i:s\Z'));
  81
  82
  83
  84                 $idtosend = $orig_id = (($contact['dfrn-id']) ? $contact['dfrn-id'] : $contact['issued-id']);
  85
  86                 if(intval($contact['duplex']) && $contact['dfrn-id'])
  87                         $idtosend = '0:' . $orig_id;
  88                 if(intval($contact['duplex']) && $contact['issued-id'])
  89                         $idtosend = '1:' . $orig_id;
  90
  91                 $url = $contact['poll'] . '?dfrn_id=' . $idtosend . '&type=data&last_update=' . $last_update ;
  92                 $xml = fetch_url($url);
  93
  94                 if($debugging) {
  95                         echo "URL: " . $url . "\r\n";
  96                         echo "XML: " . $xml . "\r\n";
  97                 }
  98
  99                 if(! $xml)
 100                         continue;
 101
 102
 103
 104                 $res = simplexml_load_string($xml);
 105
 106                 if(intval($res->status) == 1)
 107                         mark_for_death($contact);
 108                 else {
 109                         if($contact['term-date'] != '0000-00-00 00:00:00')
 110                                 unmark_for_death($contact);
 111                 }
 112
 113                 if((intval($res->status) != 0) || (! strlen($res->challenge)) || (! strlen($res->dfrn_id)))
 114                         continue;
 115
 116
 117                 $postvars = array();
 118
 119                 $sent_dfrn_id = hex2bin($res->dfrn_id);
 120                 $challenge    = hex2bin($res->challenge);
 121
 122                 $final_dfrn_id = '';
 123
 124                 if(($contact['duplex']) && strlen($contact['prvkey'])) {
 125                         openssl_private_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['prvkey']);
 126                         openssl_private_decrypt($challenge,$postvars['challenge'],$contact['prvkey']);
 127
 128                 }
 129                 else {
 130                         openssl_public_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['pubkey']);
 131                         openssl_public_decrypt($challenge,$postvars['challenge'],$contact['pubkey']);
 132                 }
 133
 134                 $final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
 135
 136                 if(strpos($final_dfrn_id,':') == 1)
 137                         $final_dfrn_id = substr($final_dfrn_id,2);
 138
 139                 if($final_dfrn_id != $orig_id) {
 140
 141                         // did not decode properly - cannot trust this site
 142                         continue;
 143                 }
 144
 145                 $postvars['dfrn_id'] = $idtosend;
 146
 147
 148
 149                 $xml = post_url($contact['poll'],$postvars);
 150
 151                 if($debugging) {
 152                         echo "XML response:" . $xml . "\r\n";
 153                         echo "Length:" . strlen($xml) . "\r\n";
 154                 }
 155
 156                 if(! strlen($xml)) {
 157                         // an empty response may mean there's nothing new - record the fact that we checked
 158                         $r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
 159                                 dbesc(datetime_convert()),
 160                                 intval($contact['id'])
 161                         );
 162                         continue;
 163                 }
 164
 165                 $feed = new SimplePie();
 166                 $feed->set_raw_data($xml);
 167                 $feed->enable_order_by_date(false);
 168                 $feed->init();
 169
 170                 // Check at the feed level for updated contact name and/or photo
 171
 172                 $name_updated  = '';
 173                 $new_name = '';
 174                 $photo_timestamp = '';
 175                 $photo_url = '';
 176
 177                 $rawtags = $feed->get_feed_tags( SIMPLEPIE_NAMESPACE_ATOM_10, author);
 178                 if($rawtags) {
 179                         $elems = $rawtags[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10];
 180                         if($elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated']) {
 181                                 $name_updated = $elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated'];
 182                                 $new_name = $elems['name'][0]['data'];
 183                         }
 184                         if(($elems['link'][0]['attribs']['']['rel'] == 'photo') && ($elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated'])) {
 185                                 $photo_timestamp = datetime_convert('UTC','UTC',$elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated']);
 186                                 $photo_url = $elems['link'][0]['attribs']['']['href'];
 187                         }
 188                 }
 189                 if(! $photo_timestamp) {
 190                         $photo_rawupdate = $feed->get_feed_tags(NAMESPACE_DFRN,'icon-updated');
 191                         if($photo_rawupdate) {
 192                                 $photo_timestamp = datetime_convert('UTC','UTC',$photo_rawupdate[0]['data']);
 193                                 $photo_url = $feed->get_image_url();
 194                         }
 195                 }
 196                 if(($photo_timestamp) && (strlen($photo_url)) && ($photo_timestamp > $contact['avatar-date'])) {
 197
 198                         require_once("Photo.php");
 199                         $photo_failure = false;
 200
 201                         $r = q("SELECT `resource-id` FROM `photo` WHERE `contact-id` = %d AND `uid` = %d LIMIT 1",
 202                                 intval($contact['id']),
 203                                 intval($contact['uid'])
 204                         );
 205                         if(count($r)) {
 206                                 $resource_id = $r[0]['resource-id'];
 207                                 $img_str = fetch_url($photo_url,true);
 208                                 $img = new Photo($img_str);
 209                                 if($img) {
 210                                         q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND contact-id` = %d AND `uid` = %d",
 211                                                 dbesc($resource_id),
 212                                                 intval($contact['id']),
 213                                                 intval($contact['uid'])
 214                                         );
 215
 216                                         $img->scaleImageSquare(175);
 217
 218                                         $hash = $resource_id;
 219                                         $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), t('Contact Photos') , 4);
 220
 221                                         $img->scaleImage(80);
 222                                         $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), t('Contact Photos') , 5);
 223                                         if($r)
 224                                                 q("UPDATE `contact` SET `avatar-date` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
 225                                                         dbesc(datetime_convert()),
 226                                                         intval($contact['uid']),
 227                                                         intval($contact['id'])
 228                                                 );
 229                                 }
 230                         }
 231                 }
 232
 233                 if(($name_updated) && (strlen($new_name)) && ($name_updated > $contact['name-date'])) {
 234                         q("UPDATE `contact` SET `name` = '%s', `name-date` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
 235                                 dbesc(notags(trim($new_name))),
 236                                 dbesc(datetime_convert()),
 237                                 intval($contact['uid']),
 238                                 intval($contact['id'])
 239                         );
 240                 }
 241
 242                 // Now process the feed
 243
 244                 foreach($feed->get_items() as $item) {
 245
 246                         $deleted = false;
 247
 248                         $rawdelete = $item->get_item_tags( NAMESPACE_TOMB, 'deleted-entry');
 249                         if(isset($rawdelete[0]['attribs']['']['ref'])) {
 250                                 $uri = $rawthread[0]['attribs']['']['ref'];
 251                                 $deleted = true;
 252                                 if(isset($rawdelete[0]['attribs']['']['when'])) {
 253                                         $when = $rawthread[0]['attribs']['']['when'];
 254                                         $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
 255                                 }
 256                                 else
 257                                         $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
 258                         }
 259                         if($deleted) {
 260                                 $r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 261                                         dbesc($uri),
 262                                         intval($importer['uid'])
 263                                 );
 264                                 if(count($r)) {
 265                                         $item = $r[0];
 266                                         if($item['uri'] == $item['parent-uri']) {
 267                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
 268                                                         `body` = '', `title` = ''
 269                                                         WHERE `parent-uri` = '%s' AND `uid` = %d",
 270                                                         dbesc($when),
 271                                                         dbesc(datetime_convert()),
 272                                                         dbesc($item['uri']),
 273                                                         intval($importer['uid'])
 274                                                 );
 275                                         }
 276                                         else {
 277                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
 278                                                         `body` = '', `title` = ''
 279                                                         WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 280                                                         dbesc($when),
 281                                                         dbesc(datetime_convert()),
 282                                                         dbesc($uri),
 283                                                         intval($importer['uid'])
 284                                                 );
 285                                                 if($item['last-child']) {
 286                                                         // ensure that last-child is set in case the comment that had it just got wiped.
 287                                                         $q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
 288                                                                 dbesc(datetime_convert()),
 289                                                                 dbesc($item['parent-uri']),
 290                                                                 intval($item['uid'])
 291                                                         );
 292                                                         // who is the last child now?
 293                                                         $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d
 294                                                                 ORDER BY `edited` DESC LIMIT 1",
 295                                                                         dbesc($item['parent-uri']),
 296                                                                         intval($importer['uid'])
 297                                                         );
 298                                                         if(count($r)) {
 299                                                                 q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
 300                                                                         intval($r[0]['id'])
 301                                                                 );
 302                                                         }
 303                                                 }
 304                                         }
 305                                 }
 306                                 continue;
 307                         }
 308
 309
 310                         $is_reply = false;
 311                         $item_id = $item->get_id();
 312                         $rawthread = $item->get_item_tags( NAMESPACE_THREAD,'in-reply-to');
 313                         if(isset($rawthread[0]['attribs']['']['ref'])) {
 314                                 $is_reply = true;
 315                                 $parent_uri = $rawthread[0]['attribs']['']['ref'];
 316                         }
 317
 318
 319                         if($is_reply) {
 320
 321                                 // Have we seen it? If not, import it.
 322
 323                                 $item_id = $item->get_id();
 324
 325                                 $r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 326                                         dbesc($item_id),
 327                                         intval($importer['uid'])
 328                                 );
 329                                 // FIXME update content if 'updated' changes
 330                                 if(count($r)) {
 331                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
 332                                         if($allow && $allow[0]['data'] != $r[0]['last-child']) {
 333                                                 $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
 334                                                         dbesc(datetime_convert()),
 335                                                         dbesc($parent_uri),
 336                                                         intval($importer['uid'])
 337                                                 );
 338                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s'  WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 339                                                         intval($allow[0]['data']),
 340                                                         dbesc(datetime_convert()),
 341                                                         dbesc($item_id),
 342                                                         intval($importer['uid'])
 343                                                 );
 344
 345
 346                                         }
 347                                         continue;
 348                                 }
 349                                 $datarray = get_atom_elements($item);
 350                                 $datarray['parent-uri'] = $parent_uri;
 351                                 $datarray['uid'] = $importer['uid'];
 352                                 $datarray['contact-id'] = $contact['id'];
 353                                 if(($datarray['verb'] == ACTIVITY_LIKE) || ($datarray['verb'] == ACTIVITY_DISLIKE)) {
 354                                         $datarray['type'] = 'activity';
 355                                         $datarray['gravity'] = GRAVITY_LIKE;
 356                                 }
 357
 358                                 $r = item_store($datarray);
 359                                 continue;
 360                         }
 361
 362                         else {
 363                                 // Head post of a conversation. Have we seen it? If not, import it.
 364
 365                                 $item_id = $item->get_id();
 366                                 $r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 367                                         dbesc($item_id),
 368                                         intval($importer['uid'])
 369                                 );
 370                                 if(count($r)) {
 371                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
 372                                         if($allow && $allow[0]['data'] != $r[0]['last-child']) {
 373                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 374                                                         intval($allow[0]['data']),
 375                                                         dbesc(datetime_convert()),
 376                                                         dbesc($item_id),
 377                                                         intval($importer['uid'])
 378                                                 );
 379                                         }
 380                                         continue;
 381                                 }
 382
 383                                 $datarray = get_atom_elements($item);
 384                                 $datarray['parent-uri'] = $item_id;
 385                                 $datarray['uid'] = $importer['uid'];
 386                                 $datarray['contact-id'] = $contact['id'];
 387                                 $r = item_store($datarray);
 388                                 continue;
 389
 390                         }
 391
 392                 }
 393
 394                 $r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
 395                         dbesc(datetime_convert()),
 396                         intval($contact['id'])
 397                 );
 398
 399         }
 400
 401         killme();
 402
 403
 404