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