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