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
 109                 if((intval($res->status) != 0) || (! strlen($res->challenge)) || (! strlen($res->dfrn_id)))
 110                         continue;
 111
 112                 if($contact['term-date'] != '0000-00-00 00:00:00')
 113                         unmark_for_death($contact);
 114
 115                 $postvars = array();
 116
 117                 $sent_dfrn_id = hex2bin($res->dfrn_id);
 118                 $challenge    = hex2bin($res->challenge);
 119
 120                 $final_dfrn_id = '';
 121
 122                 if(($contact['duplex']) && strlen($contact['prvkey'])) {
 123                         openssl_private_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['prvkey']);
 124                         openssl_private_decrypt($challenge,$postvars['challenge'],$contact['prvkey']);
 125
 126                 }
 127                 else {
 128                         openssl_public_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['pubkey']);
 129                         openssl_public_decrypt($challenge,$postvars['challenge'],$contact['pubkey']);
 130                 }
 131
 132                 $final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
 133
 134                 if(strpos($final_dfrn_id,':') == 1)
 135                         $final_dfrn_id = substr($final_dfrn_id,2);
 136
 137                 if($final_dfrn_id != $orig_id) {
 138
 139                         // did not decode properly - cannot trust this site
 140                         continue;
 141                 }
 142
 143                 $postvars['dfrn_id'] = $idtosend;
 144
 145
 146
 147                 $xml = post_url($contact['poll'],$postvars);
 148
 149                 if($debugging) {
 150                         echo "XML response:" . $xml . "\r\n";
 151                         echo "Length:" . strlen($xml) . "\r\n";
 152                 }
 153
 154                 if(! strlen($xml)) {
 155                         // an empty response may mean there's nothing new - record the fact that we checked
 156                         $r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
 157                                 dbesc(datetime_convert()),
 158                                 intval($contact['id'])
 159                         );
 160                         continue;
 161                 }
 162
 163                 $feed = new SimplePie();
 164                 $feed->set_raw_data($xml);
 165                 $feed->enable_order_by_date(false);
 166                 $feed->init();
 167
 168                 // Check at the feed level for updated contact name and/or photo
 169
 170                 $name_updated  = '';
 171                 $new_name = '';
 172                 $photo_timestamp = '';
 173                 $photo_url = '';
 174
 175                 $rawtags = $feed->get_feed_tags( SIMPLEPIE_NAMESPACE_ATOM_10, author);
 176                 if($rawtags) {
 177                         $elems = $rawtags[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10];
 178                         if($elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated']) {
 179                                 $name_updated = $elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated'];
 180                                 $new_name = $elems['name'][0]['data'];
 181                         }
 182                         if(($elems['link'][0]['attribs']['']['rel'] == 'photo') && ($elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated'])) {
 183                                 $photo_timestamp = datetime_convert('UTC','UTC',$elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated']);
 184                                 $photo_url = $elems['link'][0]['attribs']['']['href'];
 185                         }
 186                 }
 187                 if(! $photo_timestamp) {
 188                         $photo_rawupdate = $feed->get_feed_tags(NAMESPACE_DFRN,'icon-updated');
 189                         if($photo_rawupdate) {
 190                                 $photo_timestamp = datetime_convert('UTC','UTC',$photo_rawupdate[0]['data']);
 191                                 $photo_url = $feed->get_image_url();
 192                         }
 193                 }
 194                 if(($photo_timestamp) && (strlen($photo_url)) && ($photo_timestamp > $contact['avatar-date'])) {
 195
 196                         require_once("Photo.php");
 197                         $photo_failure = false;
 198
 199                         $r = q("SELECT `resource-id` FROM `photo` WHERE `contact-id` = %d AND `uid` = %d LIMIT 1",
 200                                 intval($contact['id']),
 201                                 intval($contact['uid'])
 202                         );
 203                         if(count($r)) {
 204                                 $resource_id = $r[0]['resource-id'];
 205                                 $img_str = fetch_url($photo_url,true);
 206                                 $img = new Photo($img_str);
 207                                 if($img) {
 208                                         q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND contact-id` = %d AND `uid` = %d",
 209                                                 dbesc($resource_id),
 210                                                 intval($contact['id']),
 211                                                 intval($contact['uid'])
 212                                         );
 213
 214                                         $img->scaleImageSquare(175);
 215
 216                                         $hash = $resource_id;
 217                                         $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), t('Contact Photos') , 4);
 218
 219                                         $img->scaleImage(80);
 220                                         $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), t('Contact Photos') , 5);
 221                                         if($r)
 222                                                 q("UPDATE `contact` SET `avatar-date` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
 223                                                         dbesc(datetime_convert()),
 224                                                         intval($contact['uid']),
 225                                                         intval($contact['id'])
 226                                                 );
 227                                 }
 228                         }
 229                 }
 230
 231                 if(($name_updated) && (strlen($new_name)) && ($name_updated > $contact['name-date'])) {
 232                         q("UPDATE `contact` SET `name` = '%s', `name-date` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
 233                                 dbesc(notags(trim($new_name))),
 234                                 dbesc(datetime_convert()),
 235                                 intval($contact['uid']),
 236                                 intval($contact['id'])
 237                         );
 238                 }
 239
 240                 // Now process the feed
 241
 242                 foreach($feed->get_items() as $item) {
 243
 244                         $deleted = false;
 245
 246                         $rawdelete = $item->get_item_tags( NAMESPACE_TOMB, 'deleted-entry');
 247                         if(isset($rawdelete[0]['attribs']['']['ref'])) {
 248                                 $uri = $rawthread[0]['attribs']['']['ref'];
 249                                 $deleted = true;
 250                                 if(isset($rawdelete[0]['attribs']['']['when'])) {
 251                                         $when = $rawthread[0]['attribs']['']['when'];
 252                                         $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
 253                                 }
 254                                 else
 255                                         $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
 256                         }
 257                         if($deleted) {
 258                                 $r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 259                                         dbesc($uri),
 260                                         intval($importer['uid'])
 261                                 );
 262                                 if(count($r)) {
 263                                         $item = $r[0];
 264                                         if($item['uri'] == $item['parent-uri']) {
 265                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
 266                                                         `body` = '', `title` = ''
 267                                                         WHERE `parent-uri` = '%s' AND `uid` = %d",
 268                                                         dbesc($when),
 269                                                         dbesc(datetime_convert()),
 270                                                         dbesc($item['uri']),
 271                                                         intval($importer['uid'])
 272                                                 );
 273                                         }
 274                                         else {
 275                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
 276                                                         `body` = '', `title` = ''
 277                                                         WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 278                                                         dbesc($when),
 279                                                         dbesc(datetime_convert()),
 280                                                         dbesc($uri),
 281                                                         intval($importer['uid'])
 282                                                 );
 283                                                 if($item['last-child']) {
 284                                                         // ensure that last-child is set in case the comment that had it just got wiped.
 285                                                         $q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
 286                                                                 dbesc(datetime_convert()),
 287                                                                 dbesc($item['parent-uri']),
 288                                                                 intval($item['uid'])
 289                                                         );
 290                                                         // who is the last child now?
 291                                                         $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d
 292                                                                 ORDER BY `edited` DESC LIMIT 1",
 293                                                                         dbesc($item['parent-uri']),
 294                                                                         intval($importer['uid'])
 295                                                         );
 296                                                         if(count($r)) {
 297                                                                 q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
 298                                                                         intval($r[0]['id'])
 299                                                                 );
 300                                                         }
 301                                                 }
 302                                         }
 303                                 }
 304                                 continue;
 305                         }
 306
 307
 308                         $is_reply = false;
 309                         $item_id = $item->get_id();
 310                         $rawthread = $item->get_item_tags( NAMESPACE_THREAD,'in-reply-to');
 311                         if(isset($rawthread[0]['attribs']['']['ref'])) {
 312                                 $is_reply = true;
 313                                 $parent_uri = $rawthread[0]['attribs']['']['ref'];
 314                         }
 315
 316
 317                         if($is_reply) {
 318
 319                                 // Have we seen it? If not, import it.
 320
 321                                 $item_id = $item->get_id();
 322
 323                                 $r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 324                                         dbesc($item_id),
 325                                         intval($importer['uid'])
 326                                 );
 327                                 // FIXME update content if 'updated' changes
 328                                 if(count($r)) {
 329                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
 330                                         if($allow && $allow[0]['data'] != $r[0]['last-child']) {
 331                                                 $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
 332                                                         dbesc(datetime_convert()),
 333                                                         dbesc($parent_uri),
 334                                                         intval($importer['uid'])
 335                                                 );
 336                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s'  WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 337                                                         intval($allow[0]['data']),
 338                                                         dbesc(datetime_convert()),
 339                                                         dbesc($item_id),
 340                                                         intval($importer['uid'])
 341                                                 );
 342
 343
 344                                         }
 345                                         continue;
 346                                 }
 347                                 $datarray = get_atom_elements($item);
 348                                 $datarray['parent-uri'] = $parent_uri;
 349                                 $datarray['uid'] = $importer['uid'];
 350                                 $datarray['contact-id'] = $contact['id'];
 351                                 if(($datarray['verb'] == ACTIVITY_LIKE) || ($datarray['verb'] == ACTIVITY_DISLIKE)) {
 352                                         $datarray['type'] = 'activity';
 353                                         $datarray['gravity'] = GRAVITY_LIKE;
 354                                 }
 355
 356                                 $r = item_store($datarray);
 357                                 continue;
 358                         }
 359
 360                         else {
 361                                 // Head post of a conversation. Have we seen it? If not, import it.
 362
 363                                 $item_id = $item->get_id();
 364                                 $r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 365                                         dbesc($item_id),
 366                                         intval($importer['uid'])
 367                                 );
 368                                 if(count($r)) {
 369                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
 370                                         if($allow && $allow[0]['data'] != $r[0]['last-child']) {
 371                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 372                                                         intval($allow[0]['data']),
 373                                                         dbesc(datetime_convert()),
 374                                                         dbesc($item_id),
 375                                                         intval($importer['uid'])
 376                                                 );
 377                                         }
 378                                         continue;
 379                                 }
 380
 381                                 $datarray = get_atom_elements($item);
 382                                 $datarray['parent-uri'] = $item_id;
 383                                 $datarray['uid'] = $importer['uid'];
 384                                 $datarray['contact-id'] = $contact['id'];
 385                                 $r = item_store($datarray);
 386                                 continue;
 387
 388                         }
 389
 390                 }
 391
 392                 $r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
 393                         dbesc(datetime_convert()),
 394                         intval($contact['id'])
 395                 );
 396
 397         }
 398
 399         killme();
 400
 401
 402