include/poller.php

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