include/poller.php

   1 <?php
   2
   3 require_once("boot.php");
   4
   5
   6 function poller_run($argv, $argc){
   7         global $a, $db;
   8
   9         if(is_null($a)) {
  10                 $a = new App;
  11         }
  12
  13         if(is_null($db)) {
  14             @include(".htconfig.php");
  15         require_once("dba.php");
  16             $db = new dba($db_host, $db_user, $db_pass, $db_data);
  17         unset($db_host, $db_user, $db_pass, $db_data);
  18         };
  19
  20
  21         require_once('include/session.php');
  22         require_once('include/datetime.php');
  23         require_once('library/simplepie/simplepie.inc');
  24         require_once('include/items.php');
  25         require_once('include/Contact.php');
  26         require_once('include/email.php');
  27         require_once('include/socgraph.php');
  28
  29         load_config('config');
  30         load_config('system');
  31
  32         $a->set_baseurl(get_config('system','url'));
  33
  34         load_hooks();
  35
  36         logger('poller: start');
  37
  38         // run queue delivery process in the background
  39
  40         proc_run('php',"include/queue.php");
  41
  42         // expire any expired accounts
  43
  44         q("UPDATE user SET `account_expired` = 1 where `account_expired` = 0
  45                 AND `account_expires_on` != '0000-00-00 00:00:00'
  46                 AND `account_expires_on` < UTC_TIMESTAMP() ");
  47
  48         $abandon_days = intval(get_config('system','account_abandon_days'));
  49         if($abandon_days < 1)
  50                 $abandon_days = 0;
  51
  52
  53
  54         // once daily run birthday_updates and then expire in background
  55
  56         $d1 = get_config('system','last_expire_day');
  57         $d2 = intval(datetime_convert('UTC','UTC','now','d'));
  58
  59         if($d2 != intval($d1)) {
  60
  61                 update_contact_birthdays();
  62
  63                 update_suggestions();
  64
  65                 set_config('system','last_expire_day',$d2);
  66                 proc_run('php','include/expire.php');
  67         }
  68
  69         // clear old cache
  70         Cache::clear();
  71
  72         $manual_id  = 0;
  73         $generation = 0;
  74         $hub_update = false;
  75         $force      = false;
  76         $restart    = false;
  77
  78         if(($argc > 1) && ($argv[1] == 'force'))
  79                 $force = true;
  80
  81         if(($argc > 1) && ($argv[1] == 'restart')) {
  82                 $restart = true;
  83                 $generation = intval($argv[2]);
  84                 if(! $generation)
  85                         killme();
  86         }
  87
  88         if(($argc > 1) && intval($argv[1])) {
  89                 $manual_id = intval($argv[1]);
  90                 $force     = true;
  91         }
  92
  93         $sql_extra = (($manual_id) ? " AND `id` = $manual_id " : "");
  94
  95         reload_plugins();
  96
  97         $d = datetime_convert();
  98
  99         if(! $restart)
 100                 proc_run('php','include/cronhooks.php');
 101
 102         // Only poll from those with suitable relationships,
 103         // and which have a polling address and ignore Diaspora since
 104         // we are unable to match those posts with a Diaspora GUID and prevent duplicates.
 105
 106         $abandon_sql = (($abandon_days)
 107                 ? sprintf(" AND `user`.`login_date` > UTC_TIMESTAMP() - INTERVAL %d DAY ", intval($abandon_days))
 108                 : ''
 109         );
 110
 111         $contacts = q("SELECT `contact`.`id` FROM `contact` LEFT JOIN `user` ON `user`.`uid` = `contact`.`uid`
 112                 WHERE ( `rel` = %d OR `rel` = %d ) AND `poll` != ''
 113                 AND NOT `network` IN ( '%s', '%s' )
 114                 $sql_extra
 115                 AND `self` = 0 AND `contact`.`blocked` = 0 AND `contact`.`readonly` = 0
 116                 AND `user`.`account_expired` = 0 $abandon_sql ORDER BY RAND()",
 117                 intval(CONTACT_IS_SHARING),
 118                 intval(CONTACT_IS_FRIEND),
 119                 dbesc(NETWORK_DIASPORA),
 120                 dbesc(NETWORK_FACEBOOK)
 121         );
 122
 123         if(! count($contacts)) {
 124                 return;
 125         }
 126
 127         foreach($contacts as $c) {
 128
 129                 $res = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
 130                         intval($c['id'])
 131                 );
 132
 133                 if((! $res) || (! count($res)))
 134                         continue;
 135
 136                 foreach($res as $contact) {
 137
 138                         $xml = false;
 139
 140                         if($manual_id)
 141                                 $contact['last-update'] = '0000-00-00 00:00:00';
 142
 143                         if($contact['network'] === NETWORK_DFRN)
 144                                 $contact['priority'] = 2;
 145
 146                         if($contact['priority'] || $contact['subhub']) {
 147
 148                                 $hub_update = true;
 149                                 $update     = false;
 150
 151                                 $t = $contact['last-update'];
 152
 153                                 // We should be getting everything via a hub. But just to be sure, let's check once a day.
 154                                 // (You can make this more or less frequent if desired by setting 'pushpoll_frequency' appropriately)
 155                                 // This also lets us update our subscription to the hub, and add or replace hubs in case it
 156                                 // changed. We will only update hubs once a day, regardless of 'pushpoll_frequency'.
 157
 158
 159                                 if($contact['subhub']) {
 160                                         $interval = get_config('system','pushpoll_frequency');
 161                                         $contact['priority'] = (($interval !== false) ? intval($interval) : 3);
 162                                         $hub_update = false;
 163
 164                                         if((datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 1 day")) || $force)
 165                                                         $hub_update = true;
 166                                 }
 167                                 else
 168                                         $hub_update = false;
 169
 170                                 /**
 171                                  * Based on $contact['priority'], should we poll this site now? Or later?
 172                                  */
 173
 174                                 switch ($contact['priority']) {
 175                                         case 5:
 176                                                 if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 1 month"))
 177                                                         $update = true;
 178                                                 break;
 179                                         case 4:
 180                                                 if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 1 week"))
 181                                                         $update = true;
 182                                                 break;
 183                                         case 3:
 184                                                 if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 1 day"))
 185                                                         $update = true;
 186                                                 break;
 187                                         case 2:
 188                                                 if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 12 hour"))
 189                                                         $update = true;
 190                                                 break;
 191                                         case 1:
 192                                         default:
 193                                                 if(datetime_convert('UTC','UTC', 'now') > datetime_convert('UTC','UTC', $t . " + 1 hour"))
 194                                                         $update = true;
 195                                                 break;
 196                                 }
 197                                 if((! $update) && (! $force))
 198                                         continue;
 199                         }
 200
 201                         // Check to see if we are running out of memory - if so spawn a new process and kill this one
 202
 203                         $avail_memory = return_bytes(ini_get('memory_limit'));
 204                         $memused = memory_get_peak_usage(true);
 205                         if(intval($avail_memory)) {
 206                                 if(($memused / $avail_memory) > 0.95) {
 207                                         if($generation + 1 > 10) {
 208                                                 logger('poller: maximum number of spawns exceeded. Terminating.');
 209                                                 killme();
 210                                         }
 211                                         logger('poller: memory exceeded. ' . $memused . ' bytes used. Spawning new poll.');
 212                                         proc_run('php', 'include/poller.php', 'restart', (string) $generation + 1);
 213                                         killme();
 214                                 }
 215                         }
 216
 217                         $importer_uid = $contact['uid'];
 218
 219                         $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
 220                                 intval($importer_uid)
 221                         );
 222                         if(! count($r))
 223                                 continue;
 224
 225                         $importer = $r[0];
 226
 227                         logger("poller: poll: ({$contact['id']}) IMPORTER: {$importer['name']}, CONTACT: {$contact['name']}");
 228
 229                         $last_update = (($contact['last-update'] === '0000-00-00 00:00:00')
 230                                 ? datetime_convert('UTC','UTC','now - 30 days', ATOM_TIME)
 231                                 : datetime_convert('UTC','UTC',$contact['last-update'], ATOM_TIME)
 232                         );
 233
 234                         if($contact['network'] === NETWORK_DFRN) {
 235
 236                                 $idtosend = $orig_id = (($contact['dfrn-id']) ? $contact['dfrn-id'] : $contact['issued-id']);
 237
 238                                 if(intval($contact['duplex']) && $contact['dfrn-id'])
 239                                         $idtosend = '0:' . $orig_id;
 240                                 if(intval($contact['duplex']) && $contact['issued-id'])
 241                                         $idtosend = '1:' . $orig_id;
 242
 243                                 // they have permission to write to us. We already filtered this in the contact query.
 244                                 $perm = 'rw';
 245
 246                                 $url = $contact['poll'] . '?dfrn_id=' . $idtosend
 247                                         . '&dfrn_version=' . DFRN_PROTOCOL_VERSION
 248                                         . '&type=data&last_update=' . $last_update
 249                                         . '&perm=' . $perm ;
 250
 251                                 $handshake_xml = fetch_url($url);
 252
 253                                 logger('poller: handshake with url ' . $url . ' returns xml: ' . $handshake_xml, LOGGER_DATA);
 254
 255
 256                                 if(! $handshake_xml) {
 257                                         logger("poller: $url appears to be dead - marking for death ");
 258                                         // dead connection - might be a transient event, or this might
 259                                         // mean the software was uninstalled or the domain expired.
 260                                         // Will keep trying for one month.
 261                                         mark_for_death($contact);
 262
 263                                         // set the last-update so we don't keep polling
 264
 265                                         $r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
 266                                                 dbesc(datetime_convert()),
 267                                                 intval($contact['id'])
 268                                         );
 269
 270                                         continue;
 271                                 }
 272
 273                                 if(! strstr($handshake_xml,'<?xml')) {
 274                                         logger('poller: response from ' . $url . ' did not contain XML.');
 275                                         $r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
 276                                                 dbesc(datetime_convert()),
 277                                                 intval($contact['id'])
 278                                         );
 279                                         continue;
 280                                 }
 281
 282
 283                                 $res = parse_xml_string($handshake_xml);
 284
 285                                 if(intval($res->status) == 1) {
 286                                         logger("poller: $url replied status 1 - marking for death ");
 287
 288                                         // we may not be friends anymore. Will keep trying for one month.
 289                                         // set the last-update so we don't keep polling
 290
 291                                         $r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
 292                                                 dbesc(datetime_convert()),
 293                                                 intval($contact['id'])
 294                                         );
 295
 296                                         mark_for_death($contact);
 297                                 }
 298                                 else {
 299                                         if($contact['term-date'] != '0000-00-00 00:00:00') {
 300                                                 logger("poller: $url back from the dead - removing mark for death");
 301                                                 unmark_for_death($contact);
 302                                         }
 303                                 }
 304
 305                                 if((intval($res->status) != 0) || (! strlen($res->challenge)) || (! strlen($res->dfrn_id)))
 306                                         continue;
 307
 308                                 if(((float) $res->dfrn_version > 2.21) && ($contact['poco'] == '')) {
 309                                         q("update contact set poco = '%s' where id = %d limit 1",
 310                                                 dbesc(str_replace('/profile/','/poco/', $contact['url'])),
 311                                                 intval($contact['id'])
 312                                         );
 313                                 }
 314
 315                                 $postvars = array();
 316
 317                                 $sent_dfrn_id = hex2bin((string) $res->dfrn_id);
 318                                 $challenge    = hex2bin((string) $res->challenge);
 319
 320                                 $final_dfrn_id = '';
 321
 322                                 if(($contact['duplex']) && strlen($contact['prvkey'])) {
 323                                         openssl_private_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['prvkey']);
 324                                         openssl_private_decrypt($challenge,$postvars['challenge'],$contact['prvkey']);
 325                                 }
 326                                 else {
 327                                         openssl_public_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['pubkey']);
 328                                         openssl_public_decrypt($challenge,$postvars['challenge'],$contact['pubkey']);
 329                                 }
 330
 331                                 $final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
 332
 333                                 if(strpos($final_dfrn_id,':') == 1)
 334                                         $final_dfrn_id = substr($final_dfrn_id,2);
 335
 336                                 if($final_dfrn_id != $orig_id) {
 337                                         logger('poller: ID did not decode: ' . $contact['id'] . ' orig: ' . $orig_id . ' final: ' . $final_dfrn_id);
 338                                         // did not decode properly - cannot trust this site
 339                                         continue;
 340                                 }
 341
 342                                 $postvars['dfrn_id'] = $idtosend;
 343                                 $postvars['dfrn_version'] = DFRN_PROTOCOL_VERSION;
 344                                 $postvars['perm'] = 'rw';
 345
 346                                 $xml = post_url($contact['poll'],$postvars);
 347                         }
 348                         elseif(($contact['network'] === NETWORK_OSTATUS)
 349                                 || ($contact['network'] === NETWORK_DIASPORA)
 350                                 || ($contact['network'] === NETWORK_FEED) ) {
 351
 352                                 // Upgrading DB fields from an older Friendika version
 353                                 // Will only do this once per notify-enabled OStatus contact
 354                                 // or if relationship changes
 355
 356                                 $stat_writeable = ((($contact['notify']) && ($contact['rel'] == CONTACT_IS_FOLLOWER || $contact['rel'] == CONTACT_IS_FRIEND)) ? 1 : 0);
 357
 358                                 if($stat_writeable != $contact['writable']) {
 359                                         q("UPDATE `contact` SET `writable` = %d WHERE `id` = %d LIMIT 1",
 360                                                 intval($stat_writeable),
 361                                                 intval($contact['id'])
 362                                         );
 363                                 }
 364
 365                                 // Are we allowed to import from this person?
 366
 367                                 if($contact['rel'] == CONTACT_IS_FOLLOWER || $contact['blocked'] || $contact['readonly'])
 368                                         continue;
 369
 370                                 $xml = fetch_url($contact['poll']);
 371                         }
 372                         elseif($contact['network'] === NETWORK_MAIL) {
 373
 374                                 $mail_disabled = ((function_exists('imap_open') && (! get_config('system','imap_disabled'))) ? 0 : 1);
 375                                 if($mail_disabled)
 376                                         continue;
 377
 378                                 $mbox = null;
 379                                 $x = q("SELECT `prvkey` FROM `user` WHERE `uid` = %d LIMIT 1",
 380                                         intval($importer_uid)
 381                                 );
 382                                 $mailconf = q("SELECT * FROM `mailacct` WHERE `server` != '' AND `uid` = %d LIMIT 1",
 383                                         intval($importer_uid)
 384                                 );
 385                                 if(count($x) && count($mailconf)) {
 386                                     $mailbox = construct_mailbox_name($mailconf[0]);
 387                                         $password = '';
 388                                         openssl_private_decrypt(hex2bin($mailconf[0]['pass']),$password,$x[0]['prvkey']);
 389                                         $mbox = email_connect($mailbox,$mailconf[0]['user'],$password);
 390                                         unset($password);
 391                                         if($mbox) {
 392                                                 q("UPDATE `mailacct` SET `last_check` = '%s' WHERE `id` = %d AND `uid` = %d LIMIT 1",
 393                                                         dbesc(datetime_convert()),
 394                                                         intval($mailconf[0]['id']),
 395                                                         intval($importer_uid)
 396                                                 );
 397                                         }
 398                                 }
 399                                 if($mbox) {
 400
 401                                         $msgs = email_poll($mbox,$contact['addr']);
 402
 403                                         if(count($msgs)) {
 404                                                 foreach($msgs as $msg_uid) {
 405                                                         $datarray = array();
 406                                                         $meta = email_msg_meta($mbox,$msg_uid);
 407                                                         $headers = email_msg_headers($mbox,$msg_uid);
 408
 409                                                         // look for a 'references' header and try and match with a parent item we have locally.
 410
 411                                                         $raw_refs = ((x($headers,'references')) ? str_replace("\t",'',$headers['references']) : '');
 412                                                         $datarray['uri'] = trim($meta->message_id,'<>');
 413
 414                                                         if($raw_refs) {
 415                                                                 $refs_arr = explode(' ', $raw_refs);
 416                                                                 if(count($refs_arr)) {
 417                                                                         for($x = 0; $x < count($refs_arr); $x ++)
 418                                                                                 $refs_arr[$x] = "'" . str_replace(array('<','>',' '),array('','',''),dbesc($refs_arr[$x])) . "'";
 419                                                                 }
 420                                                                 $qstr = implode(',',$refs_arr);
 421                                                                 $r = q("SELECT `uri` , `parent-uri` FROM `item` WHERE `uri` IN ( $qstr ) AND `uid` = %d LIMIT 1",
 422                                                                         intval($importer_uid)
 423                                                                 );
 424                                                                 if(count($r))
 425                                                                         $datarray['parent-uri'] = $r[0]['uri'];
 426                                                         }
 427
 428
 429                                                         if(! x($datarray,'parent-uri'))
 430                                                                 $datarray['parent-uri'] = $datarray['uri'];
 431
 432                                                         // Have we seen it before?
 433                                                         $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `uri` = '%s' LIMIT 1",
 434                                                                 intval($importer_uid),
 435                                                                 dbesc($datarray['uri'])
 436                                                         );
 437
 438                                                         if(count($r)) {
 439                                                                 if($meta->deleted && ! $r[0]['deleted']) {
 440                                                                         q("UPDATE `item` SET `deleted` = 1, `changed` = '%s' WHERE `id` = %d LIMIT 1",
 441                                                                                 dbesc(datetime_convert()),
 442                                                                                 intval($r[0]['id'])
 443                                                                         );
 444                                                                 }
 445                                                                 continue;
 446                                                         }
 447                                                         $datarray['title'] = notags(trim($meta->subject));
 448                                                         $datarray['created'] = datetime_convert('UTC','UTC',$meta->date);
 449
 450                                                         $r = email_get_msg($mbox,$msg_uid);
 451                                                         if(! $r)
 452                                                                 continue;
 453                                                         $datarray['body'] = escape_tags($r['body']);
 454
 455                                                         // some mailing lists have the original author as 'from' - add this sender info to msg body.
 456                                                         // todo: adding a gravatar for the original author would be cool
 457
 458                                                         if(! stristr($meta->from,$contact['addr']))
 459                                                                 $datarray['body'] = t('From: ') . escape_tags($meta->from) . "\n\n" . $datarray['body'];
 460
 461                                                         $datarray['uid'] = $importer_uid;
 462                                                         $datarray['contact-id'] = $contact['id'];
 463                                                         if($datarray['parent-uri'] === $datarray['uri'])
 464                                                                 $datarray['private'] = 1;
 465                                                         if(! get_pconfig($importer_uid,'system','allow_public_email_replies')) {
 466                                                                 $datarray['private'] = 1;
 467                                                                 $datarray['allow_cid'] = '<' . $contact['id'] . '>';
 468                                                         }
 469                                                         $datarray['author-name'] = $contact['name'];
 470                                                         $datarray['author-link'] = 'mailbox';
 471                                                         $datarray['author-avatar'] = $contact['photo'];
 472
 473                                                         $stored_item = item_store($datarray);
 474                                                         q("UPDATE `item` SET `last-child` = 0 WHERE `parent-uri` = '%s' AND `uid` = %d",
 475                                                                 dbesc($datarray['parent-uri']),
 476                                                                 intval($importer_uid)
 477                                                         );
 478                                                         q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
 479                                                                 intval($stored_item)
 480                                                         );
 481                                                 }
 482                                         }
 483
 484                                         imap_close($mbox);
 485                                 }
 486                         }
 487                         elseif($contact['network'] === NETWORK_FACEBOOK) {
 488                                 // This is picked up by the Facebook plugin on a cron hook.
 489                                 // Ignored here.
 490                         }
 491
 492                         if($xml) {
 493                                 logger('poller: received xml : ' . $xml, LOGGER_DATA);
 494
 495                                 if(! strstr($xml,'<?xml')) {
 496                                         logger('poller: post_handshake: response from ' . $url . ' did not contain XML.');
 497                                         $r = q("UPDATE `contact` SET `last-update` = '%s' WHERE `id` = %d LIMIT 1",
 498                                                 dbesc(datetime_convert()),
 499                                                 intval($contact['id'])
 500                                         );
 501                                         continue;
 502                                 }
 503
 504
 505                                 consume_feed($xml,$importer,$contact,$hub,1,1);
 506
 507                                 // do it twice. Ensures that children of parents which may be later in the stream aren't tossed
 508
 509                                 consume_feed($xml,$importer,$contact,$hub,1,2);
 510
 511                                 $hubmode = 'subscribe';
 512                                 if($contact['network'] === NETWORK_DFRN || $contact['blocked'] || $contact['readonly'])
 513                                         $hubmode = 'unsubscribe';
 514
 515                                 if((strlen($hub)) && ($hub_update) && ($contact['rel'] != CONTACT_IS_FOLLOWER)) {
 516                                         logger('poller: hub ' . $hubmode . ' : ' . $hub . ' contact name : ' . $contact['name'] . ' local user : ' . $importer['name']);
 517                                         $hubs = explode(',', $hub);
 518                                         if(count($hubs)) {
 519                                                 foreach($hubs as $h) {
 520                                                         $h = trim($h);
 521                                                         if(! strlen($h))
 522                                                                 continue;
 523                                                         subscribe_to_hub($h,$importer,$contact,$hubmode);
 524                                                 }
 525                                         }
 526                                 }
 527                         }
 528
 529
 530                         $updated = datetime_convert();
 531
 532                         $r = q("UPDATE `contact` SET `last-update` = '%s', `success_update` = '%s' WHERE `id` = %d LIMIT 1",
 533                                 dbesc($updated),
 534                                 dbesc($updated),
 535                                 intval($contact['id'])
 536                         );
 537
 538
 539                         // load current friends if possible.
 540
 541                         if($contact['poco']) {
 542                                 $r = q("SELECT count(*) as total from glink
 543                                         where `cid` = %d and updated > UTC_TIMESTAMP() - INTERVAL 1 DAY",
 544                                         intval($contact['id'])
 545                                 );
 546                         }
 547                         if(count($r)) {
 548                                 if(! $r[0]['total']) {
 549                                         poco_load($contact['id'],$importer_uid,$contact['poco']);
 550                                 }
 551                         }
 552
 553                         // loop - next contact
 554                 }
 555         }
 556
 557
 558         return;
 559 }
 560
 561 if (array_search(__file__,get_included_files())===0){
 562   poller_run($argv,$argc);
 563   killme();
 564 }