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