include/notifier.php

   1 <?php
   2 require_once("boot.php");
   3 require_once('include/queue_fn.php');
   4 require_once('include/html2plain.php');
   5
   6 /*
   7  * This file was at one time responsible for doing all deliveries, but this caused
   8  * big problems on shared hosting systems, where the process might get killed by the
   9  * hosting provider and nothing would get delivered.
  10  * It now only delivers one message under certain cases, and invokes a queued
  11  * delivery mechanism (include/deliver.php) to deliver individual contacts at
  12  * controlled intervals.
  13  * This has a much better chance of surviving random processes getting killed
  14  * by the hosting provider.
  15  * A lot of this code is duplicated in include/deliver.php until we have time to go back
  16  * and re-structure the delivery procedure based on the obstacles that have been thrown at
  17  * us by hosting providers.
  18  */
  19
  20 /*
  21  * The notifier is typically called with:
  22  *
  23  *              proc_run('php', "include/notifier.php", COMMAND, ITEM_ID);
  24  *
  25  * where COMMAND is one of the following:
  26  *
  27  *              activity                                (in diaspora.php, dfrn_confirm.php, profiles.php)
  28  *              comment-import                  (in diaspora.php, items.php)
  29  *              comment-new                             (in item.php)
  30  *              drop                                    (in diaspora.php, items.php, photos.php)
  31  *              edit_post                               (in item.php)
  32  *              event                                   (in events.php)
  33  *              expire                                  (in items.php)
  34  *              like                                    (in like.php, poke.php)
  35  *              mail                                    (in message.php)
  36  *              suggest                                 (in fsuggest.php)
  37  *              tag                                             (in photos.php, poke.php, tagger.php)
  38  *              tgroup                                  (in items.php)
  39  *              wall-new                                (in photos.php, item.php)
  40  *              removeme                                (in Contact.php)
  41  *              relocate                                (in uimport.php)
  42  *
  43  * and ITEM_ID is the id of the item in the database that needs to be sent to others.
  44  */
  45
  46
  47 function notifier_run(&$argv, &$argc){
  48         global $a, $db;
  49
  50         if(is_null($a)){
  51                 $a = new App;
  52         }
  53
  54         if(is_null($db)) {
  55                 @include(".htconfig.php");
  56                 require_once("include/dba.php");
  57                 $db = new dba($db_host, $db_user, $db_pass, $db_data);
  58                         unset($db_host, $db_user, $db_pass, $db_data);
  59         }
  60
  61         require_once("include/session.php");
  62         require_once("include/datetime.php");
  63         require_once('include/items.php');
  64         require_once('include/bbcode.php');
  65         require_once('include/email.php');
  66         load_config('config');
  67         load_config('system');
  68
  69         load_hooks();
  70
  71         if($argc < 3)
  72                 return;
  73
  74         $a->set_baseurl(get_config('system','url'));
  75
  76         logger('notifier: invoked: ' . print_r($argv,true), LOGGER_DEBUG);
  77
  78         $cmd = $argv[1];
  79
  80         switch($cmd) {
  81                 case 'mail':
  82                 default:
  83                         $item_id = intval($argv[2]);
  84                         if(! $item_id){
  85                                 return;
  86                         }
  87                         break;
  88         }
  89
  90         $expire = false;
  91         $mail = false;
  92         $fsuggest = false;
  93         $relocate = false;
  94         $top_level = false;
  95         $recipients = array();
  96         $url_recipients = array();
  97
  98         $normal_mode = true;
  99
 100         if($cmd === 'mail') {
 101                 $normal_mode = false;
 102                 $mail = true;
 103                 $message = q("SELECT * FROM `mail` WHERE `id` = %d LIMIT 1",
 104                                 intval($item_id)
 105                 );
 106                 if(! count($message)){
 107                         return;
 108                 }
 109                 $uid = $message[0]['uid'];
 110                 $recipients[] = $message[0]['contact-id'];
 111                 $item = $message[0];
 112
 113         }
 114         elseif($cmd === 'expire') {
 115                 $normal_mode = false;
 116                 $expire = true;
 117                 $items = q("SELECT * FROM `item` WHERE `uid` = %d AND `wall` = 1
 118                         AND `deleted` = 1 AND `changed` > UTC_TIMESTAMP() - INTERVAL 10 MINUTE",
 119                         intval($item_id)
 120                 );
 121                 $uid = $item_id;
 122                 $item_id = 0;
 123                 if(! count($items))
 124                         return;
 125         }
 126         elseif($cmd === 'suggest') {
 127                 $normal_mode = false;
 128                 $fsuggest = true;
 129
 130                 $suggest = q("SELECT * FROM `fsuggest` WHERE `id` = %d LIMIT 1",
 131                         intval($item_id)
 132                 );
 133                 if(! count($suggest))
 134                         return;
 135                 $uid = $suggest[0]['uid'];
 136                 $recipients[] = $suggest[0]['cid'];
 137                 $item = $suggest[0];
 138         } elseif($cmd === 'removeme') {
 139                 $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval($item_id));
 140                 if (! $r)
 141                         return;
 142
 143                 $user = $r[0];
 144                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1", intval($item_id));
 145                 if (! $r)
 146                         return;
 147
 148                 $self = $r[0];
 149                 $r = q("SELECT * FROM `contact` WHERE `self` = 0 AND `uid` = %d", intval($item_id));
 150                 if(! $r)
 151                         return;
 152
 153                 require_once('include/Contact.php');
 154                 foreach($r as $contact) {
 155                         terminate_friendship($user, $self, $contact);
 156                 }
 157                 return;
 158         } elseif($cmd === 'relocate') {
 159                 $normal_mode = false;
 160                 $relocate = true;
 161                 $uid = $item_id;
 162         } else {
 163                 // find ancestors
 164                 $r = q("SELECT * FROM `item` WHERE `id` = %d and visible = 1 and moderated = 0 LIMIT 1",
 165                         intval($item_id)
 166                 );
 167
 168                 if((! count($r)) || (! intval($r[0]['parent']))) {
 169                         return;
 170                 }
 171
 172                 $target_item = $r[0];
 173                 $parent_id = intval($r[0]['parent']);
 174                 $uid = $r[0]['uid'];
 175                 $updated = $r[0]['edited'];
 176
 177                 // POSSIBLE CLEANUP --> The following seems superfluous. We've already checked for "if (! intval($r[0]['parent']))" a few lines up
 178                 if(! $parent_id)
 179                         return;
 180
 181                 $items = q("SELECT `item`.*, `sign`.`signed_text`,`sign`.`signature`,`sign`.`signer`
 182                         FROM `item` LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id` WHERE `parent` = %d and visible = 1 and moderated = 0 ORDER BY `id` ASC",
 183                         intval($parent_id)
 184                 );
 185
 186                 if(! count($items)) {
 187                         return;
 188                 }
 189
 190                 // avoid race condition with deleting entries
 191
 192                 if($items[0]['deleted']) {
 193                         foreach($items as $item)
 194                                 $item['deleted'] = 1;
 195                 }
 196
 197                 if((count($items) == 1) && ($items[0]['id'] === $target_item['id']) && ($items[0]['uri'] === $items[0]['parent-uri'])) {
 198                         logger('notifier: top level post');
 199                         $top_level = true;
 200                 }
 201
 202         }
 203
 204         $r = q("SELECT `contact`.*, `user`.`pubkey` AS `upubkey`, `user`.`prvkey` AS `uprvkey`,
 205                 `user`.`timezone`, `user`.`nickname`, `user`.`sprvkey`, `user`.`spubkey`,
 206                 `user`.`page-flags`, `user`.`prvnets`
 207                 FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
 208                 WHERE `contact`.`uid` = %d AND `contact`.`self` = 1 LIMIT 1",
 209                 intval($uid)
 210         );
 211
 212         if(! count($r))
 213                 return;
 214
 215         $owner = $r[0];
 216
 217         $walltowall = ((($top_level) && ($owner['id'] != $items[0]['contact-id'])) ? true : false);
 218
 219         $hub = get_config('system','huburl');
 220
 221         // If this is a public conversation, notify the feed hub
 222         $public_message = true;
 223
 224         // fill this in with a single salmon slap if applicable
 225         $slap = '';
 226
 227         // List of OStatus receiptians of follow up messages
 228         $ostatus_recip_str = "";
 229
 230         if(! ($mail || $fsuggest || $relocate)) {
 231
 232                 require_once('include/group.php');
 233
 234                 $parent = $items[0];
 235
 236                 // This is IMPORTANT!!!!
 237
 238                 // We will only send a "notify owner to relay" or followup message if the referenced post
 239                 // originated on our system by virtue of having our hostname somewhere
 240                 // in the URI, AND it was a comment (not top_level) AND the parent originated elsewhere.
 241
 242                 // if $parent['wall'] == 1 we will already have the parent message in our array
 243                 // and we will relay the whole lot.
 244
 245                 // expire sends an entire group of expire messages and cannot be forwarded.
 246                 // However the conversation owner will be a part of the conversation and will
 247                 // be notified during this run.
 248                 // Other DFRN conversation members will be alerted during polled updates.
 249
 250
 251
 252                 // Diaspora members currently are not notified of expirations, and other networks have
 253                 // either limited or no ability to process deletions. We should at least fix Diaspora
 254                 // by stringing togther an array of retractions and sending them onward.
 255
 256
 257                 $localhost = str_replace('www.','',$a->get_hostname());
 258                 if(strpos($localhost,':'))
 259                         $localhost = substr($localhost,0,strpos($localhost,':'));
 260
 261                 /**
 262                  *
 263                  * Be VERY CAREFUL if you make any changes to the following several lines. Seemingly innocuous changes
 264                  * have been known to cause runaway conditions which affected several servers, along with
 265                  * permissions issues.
 266                  *
 267                  */
 268
 269                 $relay_to_owner = false;
 270
 271                 if((! $top_level) && ($parent['wall'] == 0) && (! $expire) && (stristr($target_item['uri'],$localhost))) {
 272                         $relay_to_owner = true;
 273                 }
 274
 275
 276                 if(($cmd === 'uplink') && (intval($parent['forum_mode']) == 1) && (! $top_level)) {
 277                         $relay_to_owner = true;
 278                 }
 279
 280                 // until the 'origin' flag has been in use for several months
 281                 // we will just use it as a fallback test
 282                 // later we will be able to use it as the primary test of whether or not to relay.
 283
 284                 if(! $target_item['origin'])
 285                         $relay_to_owner = false;
 286
 287                 if($parent['origin'])
 288                         $relay_to_owner = false;
 289
 290                 if($relay_to_owner) {
 291                         logger('notifier: followup', LOGGER_DEBUG);
 292                         // local followup to remote post
 293                         $followup = true;
 294                         $public_message = false; // not public
 295                         $conversant_str = dbesc($parent['contact-id']);
 296                         $recipients = array($parent['contact-id']);
 297
 298                         if ($parent['network'] == NETWORK_OSTATUS) {
 299                                 $ostatus_recipients = array();
 300
 301                                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `network` = '%s'", intval($uid), dbesc(NETWORK_OSTATUS));
 302                                 if(count($r)) {
 303                                         foreach($r as $rr)
 304                                                 $ostatus_recipients[] = $rr['id'];
 305
 306                                         $ostatus_recip_str = ", ".implode(', ', $ostatus_recipients);
 307                                 }
 308
 309                                 // Check if the recipient isn't in your contact list
 310                                 $r = q("SELECT `url` FROM `contact` WHERE `id` = %d", $parent['contact-id']);
 311                                 if (count($r)) {
 312                                         $url_recipients = array();
 313
 314                                         $thrparent = q("SELECT `author-link` FROM `item` WHERE `uri` = '%s'", dbesc($target_item["thr-parent"]));
 315                                         if (count($thrparent) AND (normalise_link($r[0]["url"]) != normalise_link($thrparent[0]["author-link"]))) {
 316                                                 require_once("include/Scrape.php");
 317                                                 $probed_contact = probe_url($thrparent[0]["author-link"]);
 318                                                 if ($probed_contact["notify"] != "") {
 319                                                         logger('scrape data for slapper: '.print_r($probed_contact, true));
 320                                                         $url_recipients[$probed_contact["notify"]] = $probed_contact["notify"];
 321                                                 }
 322                                         }
 323                                 }
 324                                 logger("url_recipients".print_r($url_recipients,true));
 325                         }
 326                 } else {
 327                         $followup = false;
 328
 329                         // don't send deletions onward for other people's stuff
 330
 331                         if($target_item['deleted'] && (! intval($target_item['wall']))) {
 332                                 logger('notifier: ignoring delete notification for non-wall item');
 333                                 return;
 334                         }
 335
 336                         if((strlen($parent['allow_cid']))
 337                                 || (strlen($parent['allow_gid']))
 338                                 || (strlen($parent['deny_cid']))
 339                                 || (strlen($parent['deny_gid']))) {
 340                                 $public_message = false; // private recipients, not public
 341                         }
 342
 343                         $allow_people = expand_acl($parent['allow_cid']);
 344                         $allow_groups = expand_groups(expand_acl($parent['allow_gid']),true);
 345                         $deny_people  = expand_acl($parent['deny_cid']);
 346                         $deny_groups  = expand_groups(expand_acl($parent['deny_gid']));
 347
 348                         // if our parent is a public forum (forum_mode == 1), uplink to the origional author causing
 349                         // a delivery fork. private groups (forum_mode == 2) do not uplink
 350
 351                         if((intval($parent['forum_mode']) == 1) && (! $top_level) && ($cmd !== 'uplink')) {
 352                                 proc_run('php','include/notifier.php','uplink',$item_id);
 353                         }
 354
 355                         $conversants = array();
 356
 357                         foreach($items as $item) {
 358                                 $recipients[] = $item['contact-id'];
 359                                 $conversants[] = $item['contact-id'];
 360                                 // pull out additional tagged people to notify (if public message)
 361                                 if($public_message && strlen($item['inform'])) {
 362                                         $people = explode(',',$item['inform']);
 363                                         foreach($people as $person) {
 364                                                 if(substr($person,0,4) === 'cid:') {
 365                                                         $recipients[] = intval(substr($person,4));
 366                                                         $conversants[] = intval(substr($person,4));
 367                                                 }
 368                                                 else {
 369                                                         $url_recipients[] = substr($person,4);
 370                                                 }
 371                                         }
 372                                 }
 373                         }
 374
 375                         logger('notifier: url_recipients' . print_r($url_recipients,true));
 376
 377                         $conversants = array_unique($conversants);
 378
 379
 380                         $recipients = array_unique(array_merge($recipients,$allow_people,$allow_groups));
 381                         $deny = array_unique(array_merge($deny_people,$deny_groups));
 382                         $recipients = array_diff($recipients,$deny);
 383
 384                         $conversant_str = dbesc(implode(', ',$conversants));
 385                 }
 386
 387                 $r = q("SELECT * FROM `contact` WHERE `id` IN ( $conversant_str ) AND `blocked` = 0 AND `pending` = 0 AND `archive` = 0");
 388
 389                 if(count($r))
 390                         $contacts = $r;
 391         }
 392
 393         $feed_template = get_markup_template('atom_feed.tpl');
 394         $mail_template = get_markup_template('atom_mail.tpl');
 395
 396         $atom = '';
 397         $slaps = array();
 398
 399         $hubxml = feed_hublinks();
 400
 401         $birthday = feed_birthday($owner['uid'],$owner['timezone']);
 402
 403         if(strlen($birthday))
 404                 $birthday = '<dfrn:birthday>' . xmlify($birthday) . '</dfrn:birthday>';
 405
 406         $atom .= replace_macros($feed_template, array(
 407                         '$version'      => xmlify(FRIENDICA_VERSION),
 408                         '$feed_id'      => xmlify($a->get_baseurl() . '/profile/' . $owner['nickname'] ),
 409                         '$feed_title'   => xmlify($owner['name']),
 410                         '$feed_updated' => xmlify(datetime_convert('UTC', 'UTC', $updated . '+00:00' , ATOM_TIME)) ,
 411                         '$hub'          => $hubxml,
 412                         '$salmon'       => '',  // private feed, we don't use salmon here
 413                         '$name'         => xmlify($owner['name']),
 414                         '$profile_page' => xmlify($owner['url']),
 415                         '$photo'        => xmlify($owner['photo']),
 416                         '$thumb'        => xmlify($owner['thumb']),
 417                         '$picdate'      => xmlify(datetime_convert('UTC','UTC',$owner['avatar-date'] . '+00:00' , ATOM_TIME)) ,
 418                         '$uridate'      => xmlify(datetime_convert('UTC','UTC',$owner['uri-date']    . '+00:00' , ATOM_TIME)) ,
 419                         '$namdate'      => xmlify(datetime_convert('UTC','UTC',$owner['name-date']   . '+00:00' , ATOM_TIME)) ,
 420                         '$birthday'     => $birthday,
 421                         '$community'    => (($owner['page-flags'] == PAGE_COMMUNITY) ? '<dfrn:community>1</dfrn:community>' : '')
 422
 423         ));
 424
 425         if($mail) {
 426                 $public_message = false;  // mail is  not public
 427
 428                 $body = fix_private_photos($item['body'],$owner['uid'],null,$message[0]['contact-id']);
 429
 430                 $atom .= replace_macros($mail_template, array(
 431                         '$name'         => xmlify($owner['name']),
 432                         '$profile_page' => xmlify($owner['url']),
 433                         '$thumb'        => xmlify($owner['thumb']),
 434                         '$item_id'      => xmlify($item['uri']),
 435                         '$subject'      => xmlify($item['title']),
 436                         '$created'      => xmlify(datetime_convert('UTC', 'UTC', $item['created'] . '+00:00' , ATOM_TIME)),
 437                         '$content'      => xmlify($body),
 438                         '$parent_id'    => xmlify($item['parent-uri'])
 439                 ));
 440         } elseif($fsuggest) {
 441                 $public_message = false;  // suggestions are not public
 442
 443                 $sugg_template = get_markup_template('atom_suggest.tpl');
 444
 445                 $atom .= replace_macros($sugg_template, array(
 446                         '$name'         => xmlify($item['name']),
 447                         '$url'          => xmlify($item['url']),
 448                         '$photo'        => xmlify($item['photo']),
 449                         '$request'      => xmlify($item['request']),
 450                         '$note'         => xmlify($item['note'])
 451                 ));
 452
 453                 // We don't need this any more
 454
 455                 q("DELETE FROM `fsuggest` WHERE `id` = %d LIMIT 1",
 456                         intval($item['id'])
 457                 );
 458
 459         } elseif($relocate) {
 460                 $public_message = false;  // suggestions are not public
 461
 462                 $sugg_template = get_markup_template('atom_relocate.tpl');
 463
 464                 /* get site pubkey. this could be a new installation with no site keys*/
 465                 $pubkey = get_config('system','site_pubkey');
 466                 if(! $pubkey) {
 467                         $res = new_keypair(1024);
 468                         set_config('system','site_prvkey', $res['prvkey']);
 469                         set_config('system','site_pubkey', $res['pubkey']);
 470                 }
 471
 472                 $rp = q("SELECT `resource-id` , `scale`, type FROM `photo`
 473                                                 WHERE `profile` = 1 AND `uid` = %d ORDER BY scale;", $uid);
 474                 $photos = array();
 475                 $ext = Photo::supportedTypes();
 476                 foreach($rp as $p){
 477                         $photos[$p['scale']] = $a->get_baseurl().'/photo/'.$p['resource-id'].'-'.$p['scale'].'.'.$ext[$p['type']];
 478                 }
 479                 unset($rp, $ext);
 480
 481                 $atom .= replace_macros($sugg_template, array(
 482                                         '$name' => xmlify($owner['name']),
 483                                         '$photo' => xmlify($photos[4]),
 484                                         '$thumb' => xmlify($photos[5]),
 485                                         '$micro' => xmlify($photos[6]),
 486                                         '$url' => xmlify($owner['url']),
 487                                         '$request' => xmlify($owner['request']),
 488                                         '$confirm' => xmlify($owner['confirm']),
 489                                         '$notify' => xmlify($owner['notify']),
 490                                         '$poll' => xmlify($owner['poll']),
 491                                         '$sitepubkey' => xmlify(get_config('system','site_pubkey')),
 492                                         //'$pubkey' => xmlify($owner['pubkey']),
 493                                         //'$prvkey' => xmlify($owner['prvkey']),
 494                         ));
 495                 $recipients_relocate = q("SELECT * FROM contact WHERE uid = %d  AND self = 0 AND network = '%s'" , intval($uid), NETWORK_DFRN);
 496                 unset($photos);
 497         } else {
 498                 if($followup) {
 499                         foreach($items as $item) {  // there is only one item
 500                                 if(! $item['parent'])
 501                                         continue;
 502                                 if($item['id'] == $item_id) {
 503                                         logger('notifier: followup: item: ' . print_r($item,true), LOGGER_DATA);
 504                                         $slap  = atom_entry($item,'html',null,$owner,false);
 505                                         $atom .= atom_entry($item,'text',null,$owner,false);
 506                                 }
 507                         }
 508                 } else {
 509                         foreach($items as $item) {
 510
 511                                 if(! $item['parent'])
 512                                         continue;
 513
 514                                 // private emails may be in included in public conversations. Filter them.
 515
 516                                 if(($public_message) && $item['private'] == 1)
 517                                         continue;
 518
 519
 520                                 $contact = get_item_contact($item,$contacts);
 521
 522                                 if(! $contact)
 523                                         continue;
 524
 525                                 if($normal_mode) {
 526
 527                                         // we only need the current item, but include the parent because without it
 528                                         // older sites without a corresponding dfrn_notify change may do the wrong thing.
 529
 530                                     if($item_id == $item['id'] || $item['id'] == $item['parent'])
 531                                                 $atom .= atom_entry($item,'text',null,$owner,true);
 532                                 } else
 533                                         $atom .= atom_entry($item,'text',null,$owner,true);
 534
 535                                 if(($top_level) && ($public_message) && ($item['author-link'] === $item['owner-link']) && (! $expire))
 536                                         $slaps[] = atom_entry($item,'html',null,$owner,true);
 537                         }
 538                 }
 539         }
 540         $atom .= '</feed>' . "\r\n";
 541
 542         logger('notifier: ' . $atom, LOGGER_DATA);
 543
 544         logger('notifier: slaps: ' . print_r($slaps,true), LOGGER_DATA);
 545
 546         // If this is a public message and pubmail is set on the parent, include all your email contacts
 547
 548         $mail_disabled = ((function_exists('imap_open') && (! get_config('system','imap_disabled'))) ? 0 : 1);
 549
 550         if(! $mail_disabled) {
 551                 if((! strlen($target_item['allow_cid'])) && (! strlen($target_item['allow_gid']))
 552                         && (! strlen($target_item['deny_cid'])) && (! strlen($target_item['deny_gid']))
 553                         && (intval($target_item['pubmail']))) {
 554                         $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `network` = '%s'",
 555                                 intval($uid),
 556                                 dbesc(NETWORK_MAIL)
 557                         );
 558                         if(count($r)) {
 559                                 foreach($r as $rr)
 560                                         $recipients[] = $rr['id'];
 561                         }
 562                 }
 563         }
 564
 565         if($followup)
 566                 $recip_str = $parent['contact-id'].$ostatus_recip_str;
 567         else
 568                 $recip_str = implode(', ', $recipients);
 569
 570         if ($relocate)
 571                 $r = $recipients_relocate;
 572         else
 573                 $r = q("SELECT * FROM `contact` WHERE `id` IN ( %s ) AND `blocked` = 0 AND `pending` = 0 ",
 574                         dbesc($recip_str)
 575                 );
 576
 577
 578         require_once('include/salmon.php');
 579
 580         $interval = ((get_config('system','delivery_interval') === false) ? 2 : intval(get_config('system','delivery_interval')));
 581
 582         // delivery loop
 583
 584         if(count($r)) {
 585
 586                 foreach($r as $contact) {
 587                         if((! $mail) && (! $fsuggest) && (!$followup OR ($parent['contact-id'] != $contact['id'])) && (!$relocate) && (! $contact['self'])) {
 588                                 if(($contact['network'] === NETWORK_DIASPORA) && ($public_message))
 589                                         continue;
 590                                 q("insert into deliverq ( `cmd`,`item`,`contact` ) values ('%s', %d, %d )",
 591                                         dbesc($cmd),
 592                                         intval($item_id),
 593                                         intval($contact['id'])
 594                                 );
 595                         }
 596                 }
 597
 598
 599                 // This controls the number of deliveries to execute with each separate delivery process.
 600                 // By default we'll perform one delivery per process. Assuming a hostile shared hosting
 601                 // provider, this provides the greatest chance of deliveries if processes start getting
 602                 // killed. We can also space them out with the delivery_interval to also help avoid them
 603                 // getting whacked.
 604
 605                 // If $deliveries_per_process > 1, we will chain this number of multiple deliveries
 606                 // together into a single process. This will reduce the overall number of processes
 607                 // spawned for each delivery, but they will run longer.
 608
 609                 $deliveries_per_process = intval(get_config('system','delivery_batch_count'));
 610                 if($deliveries_per_process <= 0)
 611                         $deliveries_per_process = 1;
 612
 613                 $this_batch = array();
 614
 615                 for($x = 0; $x < count($r); $x ++) {
 616                         $contact = $r[$x];
 617
 618                         if($contact['self'])
 619                                 continue;
 620
 621                         logger("Deliver to ".$contact['url'], LOGGER_DEBUG);
 622
 623                         // potentially more than one recipient. Start a new process and space them out a bit.
 624                         // we will deliver single recipient types of message and email recipients here.
 625
 626                         if((! $mail) && (! $fsuggest) && (!$relocate) && (!$followup OR ($parent['contact-id'] != $contact['id']))) {
 627
 628                                 $this_batch[] = $contact['id'];
 629
 630                                 if(count($this_batch) == $deliveries_per_process) {
 631                                         proc_run('php','include/delivery.php',$cmd,$item_id,$this_batch);
 632                                         $this_batch = array();
 633                                         if($interval)
 634                                                 @time_sleep_until(microtime(true) + (float) $interval);
 635                                 }
 636                                 continue;
 637                         }
 638                         // be sure to pick up any stragglers
 639                         if(count($this_batch))
 640                                 proc_run('php','include/delivery.php',$cmd,$item_id,$this_batch);
 641
 642
 643                         $deliver_status = 0;
 644
 645                         logger("main delivery by notifier: followup=$followup mail=$mail fsuggest=$fsuggest relocate=$relocate");
 646
 647                         switch($contact['network']) {
 648                                 case NETWORK_DFRN:
 649
 650                                         // perform local delivery if we are on the same site
 651
 652                                         $basepath =  implode('/', array_slice(explode('/',$contact['url']),0,3));
 653
 654                                         if(link_compare($basepath,$a->get_baseurl())) {
 655
 656                                                 $nickname = basename($contact['url']);
 657                                                 if($contact['issued-id'])
 658                                                         $sql_extra = sprintf(" AND `dfrn-id` = '%s' ", dbesc($contact['issued-id']));
 659                                                 else
 660                                                         $sql_extra = sprintf(" AND `issued-id` = '%s' ", dbesc($contact['dfrn-id']));
 661
 662                                                 $x = q("SELECT  `contact`.*, `contact`.`uid` AS `importer_uid`,
 663                                                         `contact`.`pubkey` AS `cpubkey`,
 664                                                         `contact`.`prvkey` AS `cprvkey`,
 665                                                         `contact`.`thumb` AS `thumb`,
 666                                                         `contact`.`url` as `url`,
 667                                                         `contact`.`name` as `senderName`,
 668                                                         `user`.*
 669                                                         FROM `contact`
 670                                                         INNER JOIN `user` ON `contact`.`uid` = `user`.`uid`
 671                                                         WHERE `contact`.`blocked` = 0 AND `contact`.`archive` = 0
 672                                                         AND `contact`.`pending` = 0
 673                                                         AND `contact`.`network` = '%s' AND `user`.`nickname` = '%s'
 674                                                         $sql_extra
 675                                                         AND `user`.`account_expired` = 0 AND `user`.`account_removed` = 0 LIMIT 1",
 676                                                         dbesc(NETWORK_DFRN),
 677                                                         dbesc($nickname)
 678                                                 );
 679
 680                                                 if($x && count($x)) {
 681                                                         $write_flag = ((($x[0]['rel']) && ($x[0]['rel'] != CONTACT_IS_SHARING)) ? true : false);
 682                                                         if((($owner['page-flags'] == PAGE_COMMUNITY) || ($write_flag)) && (! $x[0]['writable'])) {
 683                                                                 q("update contact set writable = 1 where id = %d",
 684                                                                         intval($x[0]['id'])
 685                                                                 );
 686                                                                 $x[0]['writable'] = 1;
 687                                                         }
 688
 689                                                         // if contact's ssl policy changed, which we just determined
 690                                                         // is on our own server, update our contact links
 691
 692                                                         $ssl_policy = get_config('system','ssl_policy');
 693                                                         fix_contact_ssl_policy($x[0],$ssl_policy);
 694
 695                                                         // If we are setup as a soapbox we aren't accepting input from this person
 696
 697                                                         if($x[0]['page-flags'] == PAGE_SOAPBOX)
 698                                                                 break;
 699
 700                                                         require_once('library/simplepie/simplepie.inc');
 701                                                         logger('mod-delivery: local delivery');
 702                                                         local_delivery($x[0],$atom);
 703                                                         break;
 704                                                 }
 705                                         }
 706
 707                                         logger('notifier: dfrndelivery: ' . $contact['name']);
 708                                         $deliver_status = dfrn_deliver($owner,$contact,$atom);
 709
 710                                         logger('notifier: dfrn_delivery returns ' . $deliver_status);
 711
 712                                         if($deliver_status == (-1)) {
 713                                                 logger('notifier: delivery failed: queuing message');
 714                                                 // queue message for redelivery
 715                                                 add_to_queue($contact['id'],NETWORK_DFRN,$atom);
 716                                         }
 717                                         break;
 718                                 case NETWORK_OSTATUS:
 719
 720                                         // Do not send to ostatus if we are not configured to send to public networks
 721                                         if($owner['prvnets'])
 722                                                 break;
 723
 724                                         if(get_config('system','ostatus_disabled') || get_config('system','dfrn_only'))
 725                                                 break;
 726
 727                                         if($followup && $contact['notify']) {
 728                                                 logger('slapdelivery followup item '.$item_id.' to ' . $contact['name']);
 729                                                 $deliver_status = slapper($owner,$contact['notify'],$slap);
 730
 731                                                 if($deliver_status == (-1)) {
 732                                                         // queue message for redelivery
 733                                                         add_to_queue($contact['id'],NETWORK_OSTATUS,$slap);
 734                                                 }
 735                                         } else {
 736
 737                                                 // only send salmon if public - e.g. if it's ok to notify
 738                                                 // a public hub, it's ok to send a salmon
 739
 740                                                 if((count($slaps)) && ($public_message) && (! $expire)) {
 741                                                         logger('slapdelivery item '.$item_id.' to ' . $contact['name']);
 742                                                         foreach($slaps as $slappy) {
 743                                                                 if($contact['notify']) {
 744                                                                         $deliver_status = slapper($owner,$contact['notify'],$slappy);
 745                                                                         if($deliver_status == (-1)) {
 746                                                                                 // queue message for redelivery
 747                                                                                 add_to_queue($contact['id'],NETWORK_OSTATUS,$slappy);
 748                                                                         }
 749                                                                 }
 750                                                         }
 751                                                 }
 752                                         }
 753                                         break;
 754
 755                                 case NETWORK_MAIL:
 756                                 case NETWORK_MAIL2:
 757
 758                                         if(get_config('system','dfrn_only'))
 759                                                 break;
 760
 761                                         // WARNING: does not currently convert to RFC2047 header encodings, etc.
 762
 763                                         $addr = $contact['addr'];
 764                                         if(! strlen($addr))
 765                                                 break;
 766
 767                                         if($cmd === 'wall-new' || $cmd === 'comment-new') {
 768
 769                                                 $it = null;
 770                                                 if($cmd === 'wall-new')
 771                                                         $it = $items[0];
 772                                                 else {
 773                                                         $r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
 774                                                                 intval($argv[2]),
 775                                                                 intval($uid)
 776                                                         );
 777                                                         if(count($r))
 778                                                                 $it = $r[0];
 779                                                 }
 780                                                 if(! $it)
 781                                                         break;
 782
 783
 784
 785                                                 $local_user = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
 786                                                         intval($uid)
 787                                                 );
 788                                                 if(! count($local_user))
 789                                                         break;
 790
 791                                                 $reply_to = '';
 792                                                 $r1 = q("SELECT * FROM `mailacct` WHERE `uid` = %d LIMIT 1",
 793                                                         intval($uid)
 794                                                 );
 795                                                 if($r1 && $r1[0]['reply_to'])
 796                                                         $reply_to = $r1[0]['reply_to'];
 797
 798                                                 $subject  = (($it['title']) ? email_header_encode($it['title'],'UTF-8') : t("\x28no subject\x29")) ;
 799
 800                                                 // only expose our real email address to true friends
 801                                                 if(($contact['rel'] == CONTACT_IS_FRIEND) && (! $contact['blocked']))
 802                                                         if($reply_to) {
 803                                                                 $headers  = 'From: ' . email_header_encode($local_user[0]['username'],'UTF-8') . ' <' . $reply_to . '>' . "\n";
 804                                                                 $headers .= 'Sender: '.$local_user[0]['email']."\n";
 805                                                         } else
 806                                                                 $headers  = 'From: ' . email_header_encode($local_user[0]['username'],'UTF-8') . ' <' . $local_user[0]['email'] . '>' . "\n";
 807                                                 else
 808                                                         $headers  = 'From: ' . email_header_encode($local_user[0]['username'],'UTF-8') . ' <' . t('noreply') . '@' . $a->get_hostname() . '>' . "\n";
 809
 810                                                 //if($reply_to)
 811                                                 //      $headers .= 'Reply-to: ' . $reply_to . "\n";
 812
 813                                                 $headers .= 'Message-Id: <' . iri2msgid($it['uri']) . '>' . "\n";
 814
 815                                                 if($it['uri'] !== $it['parent-uri']) {
 816                                                         $headers .= "References: <".iri2msgid($it["parent-uri"]).">";
 817
 818                                                         // If Threading is enabled, write down the correct parent
 819                                                         if (($it["thr-parent"] != "") and ($it["thr-parent"] != $it["parent-uri"]))
 820                                                                 $headers .= " <".iri2msgid($it["thr-parent"]).">";
 821                                                         $headers .= "\n";
 822
 823                                                         if(!$it['title']) {
 824                                                                 $r = q("SELECT `title` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 825                                                                         dbesc($it['parent-uri']),
 826                                                                         intval($uid));
 827
 828                                                                 if(count($r) AND ($r[0]['title'] != ''))
 829                                                                         $subject = $r[0]['title'];
 830                                                                 else {
 831                                                                         $r = q("SELECT `title` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d LIMIT 1",
 832                                                                                 dbesc($it['parent-uri']),
 833                                                                                 intval($uid));
 834
 835                                                                         if(count($r) AND ($r[0]['title'] != ''))
 836                                                                                 $subject = $r[0]['title'];
 837                                                                 }
 838                                                         }
 839                                                         if(strncasecmp($subject,'RE:',3))
 840                                                                 $subject = 'Re: '.$subject;
 841                                                 }
 842                                                 email_send($addr, $subject, $headers, $it);
 843                                         }
 844                                         break;
 845                                 case NETWORK_DIASPORA:
 846                                         require_once('include/diaspora.php');
 847
 848                                         if(get_config('system','dfrn_only') || (! get_config('system','diaspora_enabled')))
 849                                                 break;
 850
 851                                         if($mail) {
 852                                                 diaspora_send_mail($item,$owner,$contact);
 853                                                 break;
 854                                         }
 855
 856                                         if(! $normal_mode)
 857                                                 break;
 858
 859                                         // special handling for followup to public post
 860                                         // all other public posts processed as public batches further below
 861
 862                                         if($public_message) {
 863                                                 if($followup)
 864                                                         diaspora_send_followup($target_item,$owner,$contact, true);
 865                                                 break;
 866                                         }
 867
 868                                         if(! $contact['pubkey'])
 869                                                 break;
 870
 871                                         if($target_item['verb'] === ACTIVITY_DISLIKE) {
 872                                                 // unsupported
 873                                                 break;
 874                                         }
 875                                         elseif(($target_item['deleted']) && (($target_item['uri'] === $target_item['parent-uri']) || $followup)) {
 876                                                 // send both top-level retractions and relayable retractions for owner to relay
 877                                                 diaspora_send_retraction($target_item,$owner,$contact);
 878                                                 break;
 879                                         }
 880                                         elseif($followup) {
 881                                                 // send comments and likes to owner to relay
 882                                                 diaspora_send_followup($target_item,$owner,$contact);
 883                                                 break;
 884                                         }
 885                                         elseif($target_item['uri'] !== $target_item['parent-uri']) {
 886                                                 // we are the relay - send comments, likes and relayable_retractions
 887                                                 // (of comments and likes) to our conversants
 888                                                 diaspora_send_relay($target_item,$owner,$contact);
 889                                                 break;
 890                                         }
 891                                         elseif(($top_level) && (! $walltowall)) {
 892                                                 // currently no workable solution for sending walltowall
 893                                                 diaspora_send_status($target_item,$owner,$contact);
 894                                                 break;
 895                                         }
 896
 897                                         break;
 898
 899                                 case NETWORK_FEED:
 900                                 case NETWORK_FACEBOOK:
 901                                         if(get_config('system','dfrn_only'))
 902                                                 break;
 903                                 case NETWORK_PUMPIO:
 904                                         if(get_config('system','dfrn_only'))
 905                                                 break;
 906                                 default:
 907                                         break;
 908                         }
 909                 }
 910         }
 911
 912         // send additional slaps to mentioned remote tags (@foo@example.com)
 913
 914         if($slap && count($url_recipients) && ($followup || $top_level) && $public_message && (! $expire)) {
 915                 if(! get_config('system','dfrn_only')) {
 916                         foreach($url_recipients as $url) {
 917                                 if($url) {
 918                                         logger('notifier: urldelivery: ' . $url);
 919                                         $deliver_status = slapper($owner,$url,$slap);
 920                                         // TODO: redeliver/queue these items on failure, though there is no contact record
 921                                 }
 922                         }
 923                 }
 924         }
 925
 926
 927         if($public_message) {
 928
 929                 $r1 = q("SELECT DISTINCT(`batch`), `id`, `name`,`network` FROM `contact` WHERE `network` = '%s'
 930                         AND `uid` = %d AND `rel` != %d group by `batch` ORDER BY rand() ",
 931                         dbesc(NETWORK_DIASPORA),
 932                         intval($owner['uid']),
 933                         intval(CONTACT_IS_SHARING)
 934                 );
 935
 936                 $r2 = q("SELECT `id`, `name`,`network` FROM `contact`
 937                         WHERE `network` in ( '%s', '%s')  AND `uid` = %d AND `blocked` = 0 AND `pending` = 0 AND `archive` = 0
 938                         AND `rel` != %d order by rand() ",
 939                         dbesc(NETWORK_DFRN),
 940                         dbesc(NETWORK_MAIL2),
 941                         intval($owner['uid']),
 942                         intval(CONTACT_IS_SHARING)
 943                 );
 944
 945                 $r = array_merge($r2,$r1);
 946
 947                 if(count($r)) {
 948                         logger('pubdeliver: ' . print_r($r,true), LOGGER_DEBUG);
 949
 950                         // throw everything into the queue in case we get killed
 951
 952                         foreach($r as $rr) {
 953                                 if((! $mail) && (! $fsuggest) && (!$followup OR ($parent['contact-id'] != $contact['id']))) {
 954                                         q("insert into deliverq ( `cmd`,`item`,`contact` ) values ('%s', %d, %d )",
 955                                                 dbesc($cmd),
 956                                                 intval($item_id),
 957                                                 intval($rr['id'])
 958                                         );
 959                                 }
 960                         }
 961
 962                         foreach($r as $rr) {
 963
 964                                 // except for Diaspora batch jobs
 965                                 // Don't deliver to folks who have already been delivered to
 966
 967                                 if(($rr['network'] !== NETWORK_DIASPORA) && (in_array($rr['id'],$conversants))) {
 968                                         logger('notifier: already delivered id=' . $rr['id']);
 969                                         continue;
 970                                 }
 971
 972                                 if((! $mail) && (! $fsuggest) && (! $followup)) {
 973                                         logger('notifier: delivery agent: ' . $rr['name'] . ' ' . $rr['id']);
 974                                         proc_run('php','include/delivery.php',$cmd,$item_id,$rr['id']);
 975                                         if($interval)
 976                                                 @time_sleep_until(microtime(true) + (float) $interval);
 977                                 }
 978                         }
 979                 }
 980
 981
 982                 if(strlen($hub)) {
 983                         $hubs = explode(',', $hub);
 984                         if(count($hubs)) {
 985                                 foreach($hubs as $h) {
 986                                         $h = trim($h);
 987                                         if(! strlen($h))
 988                                                 continue;
 989
 990                                         if ($h === '[internal]') {
 991                                                 // Set push flag for PuSH subscribers to this topic,
 992                                                 // they will be notified in queue.php
 993                                                 q("UPDATE `push_subscriber` SET `push` = 1 " .
 994                                                   "WHERE `nickname` = '%s'", dbesc($owner['nickname']));
 995                                         } else {
 996
 997                                                 $params = 'hub.mode=publish&hub.url=' . urlencode( $a->get_baseurl() . '/dfrn_poll/' . $owner['nickname'] );
 998                                                 post_url($h,$params);
 999                                                 logger('pubsub: publish: ' . $h . ' ' . $params . ' returned ' . $a->get_curl_code());
1000                                         }
1001                                         if(count($hubs) > 1)
1002                                                 sleep(7);                               // try and avoid multiple hubs responding at precisely the same time
1003                                 }
1004                         }
1005                 }
1006
1007         }
1008
1009         // If the item was deleted, clean up the `sign` table
1010         if($target_item['deleted']) {
1011                 $r = q("DELETE FROM sign where `retract_iid` = %d",
1012                         intval($target_item['id'])
1013                 );
1014         }
1015
1016         logger('notifier: calling hooks', LOGGER_DEBUG);
1017
1018         if($normal_mode)
1019                 call_hooks('notifier_normal',$target_item);
1020
1021         call_hooks('notifier_end',$target_item);
1022
1023         return;
1024 }
1025
1026
1027 if (array_search(__file__,get_included_files())===0){
1028         notifier_run($_SERVER["argv"],$_SERVER["argc"]);
1029         killme();
1030 }