include/notifier.php

   1 <?php
   2 require_once("boot.php");
   3 require_once('include/queue_fn.php');
   4 require_once('include/html2plain.php');
   5 require_once("include/Scrape.php");
   6 require_once('include/diaspora.php');
   7 require_once("include/ostatus.php");
   8
   9 /*
  10  * This file was at one time responsible for doing all deliveries, but this caused
  11  * big problems on shared hosting systems, where the process might get killed by the
  12  * hosting provider and nothing would get delivered.
  13  * It now only delivers one message under certain cases, and invokes a queued
  14  * delivery mechanism (include/deliver.php) to deliver individual contacts at
  15  * controlled intervals.
  16  * This has a much better chance of surviving random processes getting killed
  17  * by the hosting provider.
  18  * A lot of this code is duplicated in include/deliver.php until we have time to go back
  19  * and re-structure the delivery procedure based on the obstacles that have been thrown at
  20  * us by hosting providers.
  21  */
  22
  23 /*
  24  * The notifier is typically called with:
  25  *
  26  *              proc_run('php', "include/notifier.php", COMMAND, ITEM_ID);
  27  *
  28  * where COMMAND is one of the following:
  29  *
  30  *              activity                                (in diaspora.php, dfrn_confirm.php, profiles.php)
  31  *              comment-import                  (in diaspora.php, items.php)
  32  *              comment-new                             (in item.php)
  33  *              drop                                    (in diaspora.php, items.php, photos.php)
  34  *              edit_post                               (in item.php)
  35  *              event                                   (in events.php)
  36  *              expire                                  (in items.php)
  37  *              like                                    (in like.php, poke.php)
  38  *              mail                                    (in message.php)
  39  *              suggest                                 (in fsuggest.php)
  40  *              tag                                             (in photos.php, poke.php, tagger.php)
  41  *              tgroup                                  (in items.php)
  42  *              wall-new                                (in photos.php, item.php)
  43  *              removeme                                (in Contact.php)
  44  *              relocate                                (in uimport.php)
  45  *
  46  * and ITEM_ID is the id of the item in the database that needs to be sent to others.
  47  */
  48
  49
  50 function notifier_run(&$argv, &$argc){
  51         global $a, $db;
  52
  53         if(is_null($a)){
  54                 $a = new App;
  55         }
  56
  57         if(is_null($db)) {
  58                 @include(".htconfig.php");
  59                 require_once("include/dba.php");
  60                 $db = new dba($db_host, $db_user, $db_pass, $db_data);
  61                         unset($db_host, $db_user, $db_pass, $db_data);
  62         }
  63
  64         require_once("include/session.php");
  65         require_once("include/datetime.php");
  66         require_once('include/items.php');
  67         require_once('include/bbcode.php');
  68         require_once('include/email.php');
  69         load_config('config');
  70         load_config('system');
  71
  72         load_hooks();
  73
  74         if($argc < 3)
  75                 return;
  76
  77         $a->set_baseurl(get_config('system','url'));
  78
  79         logger('notifier: invoked: ' . print_r($argv,true), LOGGER_DEBUG);
  80
  81         $cmd = $argv[1];
  82
  83         switch($cmd) {
  84                 case 'mail':
  85                 default:
  86                         $item_id = intval($argv[2]);
  87                         if(! $item_id){
  88                                 return;
  89                         }
  90                         break;
  91         }
  92
  93         $expire = false;
  94         $mail = false;
  95         $fsuggest = false;
  96         $relocate = false;
  97         $top_level = false;
  98         $recipients = array();
  99         $url_recipients = array();
 100
 101         $normal_mode = true;
 102
 103         if($cmd === 'mail') {
 104                 $normal_mode = false;
 105                 $mail = true;
 106                 $message = q("SELECT * FROM `mail` WHERE `id` = %d LIMIT 1",
 107                                 intval($item_id)
 108                 );
 109                 if(! count($message)){
 110                         return;
 111                 }
 112                 $uid = $message[0]['uid'];
 113                 $recipients[] = $message[0]['contact-id'];
 114                 $item = $message[0];
 115
 116         }
 117         elseif($cmd === 'expire') {
 118                 $normal_mode = false;
 119                 $expire = true;
 120                 $items = q("SELECT * FROM `item` WHERE `uid` = %d AND `wall` = 1
 121                         AND `deleted` = 1 AND `changed` > UTC_TIMESTAMP() - INTERVAL 10 MINUTE",
 122                         intval($item_id)
 123                 );
 124                 $uid = $item_id;
 125                 $item_id = 0;
 126                 if(! count($items))
 127                         return;
 128         }
 129         elseif($cmd === 'suggest') {
 130                 $normal_mode = false;
 131                 $fsuggest = true;
 132
 133                 $suggest = q("SELECT * FROM `fsuggest` WHERE `id` = %d LIMIT 1",
 134                         intval($item_id)
 135                 );
 136                 if(! count($suggest))
 137                         return;
 138                 $uid = $suggest[0]['uid'];
 139                 $recipients[] = $suggest[0]['cid'];
 140                 $item = $suggest[0];
 141         } elseif($cmd === 'removeme') {
 142                 $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1", intval($item_id));
 143                 if (! $r)
 144                         return;
 145
 146                 $user = $r[0];
 147                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1", intval($item_id));
 148                 if (! $r)
 149                         return;
 150
 151                 $self = $r[0];
 152                 $r = q("SELECT * FROM `contact` WHERE `self` = 0 AND `uid` = %d", intval($item_id));
 153                 if(! $r)
 154                         return;
 155
 156                 require_once('include/Contact.php');
 157                 foreach($r as $contact) {
 158                         terminate_friendship($user, $self, $contact);
 159                 }
 160                 return;
 161         } elseif($cmd === 'relocate') {
 162                 $normal_mode = false;
 163                 $relocate = true;
 164                 $uid = $item_id;
 165         } else {
 166                 // find ancestors
 167                 $r = q("SELECT * FROM `item` WHERE `id` = %d and visible = 1 and moderated = 0 LIMIT 1",
 168                         intval($item_id)
 169                 );
 170
 171                 if((! count($r)) || (! intval($r[0]['parent']))) {
 172                         return;
 173                 }
 174
 175                 $target_item = $r[0];
 176                 $parent_id = intval($r[0]['parent']);
 177                 $uid = $r[0]['uid'];
 178                 $updated = $r[0]['edited'];
 179
 180                 // POSSIBLE CLEANUP --> The following seems superfluous. We've already checked for "if (! intval($r[0]['parent']))" a few lines up
 181                 if(! $parent_id)
 182                         return;
 183
 184                 $items = q("SELECT `item`.*, `sign`.`signed_text`,`sign`.`signature`,`sign`.`signer`
 185                         FROM `item` LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id` WHERE `parent` = %d and visible = 1 and moderated = 0 ORDER BY `id` ASC",
 186                         intval($parent_id)
 187                 );
 188
 189                 if(! count($items)) {
 190                         return;
 191                 }
 192
 193                 // avoid race condition with deleting entries
 194
 195                 if($items[0]['deleted']) {
 196                         foreach($items as $item)
 197                                 $item['deleted'] = 1;
 198                 }
 199
 200                 if((count($items) == 1) && ($items[0]['id'] === $target_item['id']) && ($items[0]['uri'] === $items[0]['parent-uri'])) {
 201                         logger('notifier: top level post');
 202                         $top_level = true;
 203                 }
 204
 205         }
 206
 207         $r = q("SELECT `contact`.*, `user`.`pubkey` AS `upubkey`, `user`.`prvkey` AS `uprvkey`,
 208                 `user`.`timezone`, `user`.`nickname`, `user`.`sprvkey`, `user`.`spubkey`,
 209                 `user`.`page-flags`, `user`.`prvnets`
 210                 FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
 211                 WHERE `contact`.`uid` = %d AND `contact`.`self` = 1 LIMIT 1",
 212                 intval($uid)
 213         );
 214
 215         if(! count($r))
 216                 return;
 217
 218         $owner = $r[0];
 219
 220         $walltowall = ((($top_level) && ($owner['id'] != $items[0]['contact-id'])) ? true : false);
 221
 222         $hub = get_config('system','huburl');
 223
 224         // If this is a public conversation, notify the feed hub
 225         $public_message = true;
 226
 227         // Do a PuSH
 228         $push_notify = false;
 229
 230         // fill this in with a single salmon slap if applicable
 231         $slap = '';
 232
 233         if(! ($mail || $fsuggest || $relocate)) {
 234
 235                 require_once('include/group.php');
 236
 237                 $parent = $items[0];
 238
 239                 $thr_parent = q("SELECT `network` FROM `item` WHERE `uri` = '%s' AND `uid` = %d",
 240                         dbesc($target_item["thr-parent"]), intval($target_item["uid"]));
 241
 242                 logger('Parent is '.$parent['network'].'. Thread parent is '.$thr_parent[0]['network'], LOGGER_DEBUG);
 243
 244                 // This is IMPORTANT!!!!
 245
 246                 // We will only send a "notify owner to relay" or followup message if the referenced post
 247                 // originated on our system by virtue of having our hostname somewhere
 248                 // in the URI, AND it was a comment (not top_level) AND the parent originated elsewhere.
 249
 250                 // if $parent['wall'] == 1 we will already have the parent message in our array
 251                 // and we will relay the whole lot.
 252
 253                 // expire sends an entire group of expire messages and cannot be forwarded.
 254                 // However the conversation owner will be a part of the conversation and will
 255                 // be notified during this run.
 256                 // Other DFRN conversation members will be alerted during polled updates.
 257
 258
 259
 260                 // Diaspora members currently are not notified of expirations, and other networks have
 261                 // either limited or no ability to process deletions. We should at least fix Diaspora
 262                 // by stringing togther an array of retractions and sending them onward.
 263
 264
 265                 $localhost = str_replace('www.','',$a->get_hostname());
 266                 if(strpos($localhost,':'))
 267                         $localhost = substr($localhost,0,strpos($localhost,':'));
 268
 269                 /**
 270                  *
 271                  * Be VERY CAREFUL if you make any changes to the following several lines. Seemingly innocuous changes
 272                  * have been known to cause runaway conditions which affected several servers, along with
 273                  * permissions issues.
 274                  *
 275                  */
 276
 277                 $relay_to_owner = false;
 278
 279                 if((! $top_level) && ($parent['wall'] == 0) && (! $expire) && (stristr($target_item['uri'],$localhost))) {
 280                         $relay_to_owner = true;
 281                 }
 282
 283
 284                 if(($cmd === 'uplink') && (intval($parent['forum_mode']) == 1) && (! $top_level)) {
 285                         $relay_to_owner = true;
 286                 }
 287
 288                 // until the 'origin' flag has been in use for several months
 289                 // we will just use it as a fallback test
 290                 // later we will be able to use it as the primary test of whether or not to relay.
 291
 292                 if(! $target_item['origin'])
 293                         $relay_to_owner = false;
 294
 295                 if($parent['origin'])
 296                         $relay_to_owner = false;
 297
 298                 if($relay_to_owner) {
 299                         logger('notifier: followup '.$target_item["guid"], LOGGER_DEBUG);
 300                         // local followup to remote post
 301                         $followup = true;
 302                         $public_message = false; // not public
 303                         $conversant_str = dbesc($parent['contact-id']);
 304                         $recipients = array($parent['contact-id']);
 305                         $recipients_followup  = array($parent['contact-id']);
 306
 307                         //if (!$target_item['private'] AND $target_item['wall'] AND
 308                         if (!$target_item['private'] AND
 309                                 (strlen($target_item['allow_cid'].$target_item['allow_gid'].
 310                                         $target_item['deny_cid'].$target_item['deny_gid']) == 0))
 311                                 $push_notify = true;
 312
 313                         if (($thr_parent AND ($thr_parent[0]['network'] == NETWORK_OSTATUS)) OR ($parent['network'] == NETWORK_OSTATUS)) {
 314
 315                                 $push_notify = true;
 316
 317                                 if ($parent["network"] == NETWORK_OSTATUS) {
 318                                         // Distribute the message to the DFRN contacts as if this wasn't a followup since OStatus can't relay comments
 319                                         $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `network` = '%s' AND NOT `blocked` AND NOT `pending`",
 320                                                 intval($uid),
 321                                                 dbesc(NETWORK_DFRN)
 322                                         );
 323                                         if(count($r))
 324                                                 foreach($r as $rr)
 325                                                         $recipients_followup[] = $rr['id'];
 326                                 }
 327                         }
 328                         logger("Notify ".$target_item["guid"]." via PuSH: ".($push_notify?"Yes":"No"), LOGGER_DEBUG);
 329                 } else {
 330                         $followup = false;
 331
 332                         logger('Distributing directly '.$target_item["guid"], LOGGER_DEBUG);
 333
 334                         // don't send deletions onward for other people's stuff
 335
 336                         if($target_item['deleted'] && (! intval($target_item['wall']))) {
 337                                 logger('notifier: ignoring delete notification for non-wall item');
 338                                 return;
 339                         }
 340
 341                         if((strlen($parent['allow_cid']))
 342                                 || (strlen($parent['allow_gid']))
 343                                 || (strlen($parent['deny_cid']))
 344                                 || (strlen($parent['deny_gid']))) {
 345                                 $public_message = false; // private recipients, not public
 346                         }
 347
 348                         $allow_people = expand_acl($parent['allow_cid']);
 349                         $allow_groups = expand_groups(expand_acl($parent['allow_gid']),true);
 350                         $deny_people  = expand_acl($parent['deny_cid']);
 351                         $deny_groups  = expand_groups(expand_acl($parent['deny_gid']));
 352
 353                         // if our parent is a public forum (forum_mode == 1), uplink to the origional author causing
 354                         // a delivery fork. private groups (forum_mode == 2) do not uplink
 355
 356                         if((intval($parent['forum_mode']) == 1) && (! $top_level) && ($cmd !== 'uplink')) {
 357                                 proc_run('php','include/notifier.php','uplink',$item_id);
 358                         }
 359
 360                         $conversants = array();
 361
 362                         foreach($items as $item) {
 363                                 $recipients[] = $item['contact-id'];
 364                                 $conversants[] = $item['contact-id'];
 365                                 // pull out additional tagged people to notify (if public message)
 366                                 if($public_message && strlen($item['inform'])) {
 367                                         $people = explode(',',$item['inform']);
 368                                         foreach($people as $person) {
 369                                                 if(substr($person,0,4) === 'cid:') {
 370                                                         $recipients[] = intval(substr($person,4));
 371                                                         $conversants[] = intval(substr($person,4));
 372                                                 }
 373                                                 else {
 374                                                         $url_recipients[] = substr($person,4);
 375                                                 }
 376                                         }
 377                                 }
 378                         }
 379
 380                         if (count($url_recipients))
 381                                 logger('notifier: '.$target_item["guid"].' url_recipients ' . print_r($url_recipients,true));
 382
 383                         $conversants = array_unique($conversants);
 384
 385
 386                         $recipients = array_unique(array_merge($recipients,$allow_people,$allow_groups));
 387                         $deny = array_unique(array_merge($deny_people,$deny_groups));
 388                         $recipients = array_diff($recipients,$deny);
 389
 390                         $conversant_str = dbesc(implode(', ',$conversants));
 391                 }
 392
 393                 // If the thread parent is OStatus then do some magic to distribute the messages.
 394                 // We have not only to look at the parent, since it could be a Friendica thread.
 395                 if (($thr_parent AND ($thr_parent[0]['network'] == NETWORK_OSTATUS)) OR ($parent['network'] == NETWORK_OSTATUS)) {
 396
 397                         logger('Some parent is OStatus for '.$target_item["guid"], LOGGER_DEBUG);
 398
 399                         // Send a salmon notification to every person we mentioned in the post
 400                         $arr = explode(',',$target_item['tag']);
 401                         foreach($arr as $x) {
 402                                 //logger('Checking tag '.$x, LOGGER_DEBUG);
 403                                 $matches = null;
 404                                 if(preg_match('/@\[url=([^\]]*)\]/',$x,$matches)) {
 405                                                 $probed_contact = probe_url($matches[1]);
 406                                         if ($probed_contact["notify"] != "") {
 407                                                 logger('Notify mentioned user '.$probed_contact["url"].': '.$probed_contact["notify"]);
 408                                                 $url_recipients[$probed_contact["notify"]] = $probed_contact["notify"];
 409                                         }
 410                                 }
 411                         }
 412
 413                         // It only makes sense to distribute answers to OStatus messages to Friendica and OStatus - but not Diaspora
 414                         $sql_extra = " AND `network` IN ('".NETWORK_OSTATUS."', '".NETWORK_DFRN."')";
 415                 } else
 416                         $sql_extra = "";
 417
 418                 $r = q("SELECT * FROM `contact` WHERE `id` IN ($conversant_str) AND `blocked` = 0 AND `pending` = 0 AND `archive` = 0".$sql_extra);
 419
 420                 if(count($r))
 421                         $contacts = $r;
 422         }
 423
 424         $feed_template = get_markup_template('atom_feed.tpl');
 425         $mail_template = get_markup_template('atom_mail.tpl');
 426
 427         $atom = '';
 428         $slaps = array();
 429
 430         $hubxml = feed_hublinks();
 431
 432         $birthday = feed_birthday($owner['uid'],$owner['timezone']);
 433
 434         if(strlen($birthday))
 435                 $birthday = '<dfrn:birthday>' . xmlify($birthday) . '</dfrn:birthday>';
 436
 437         $atom .= replace_macros($feed_template, array(
 438                         '$version'      => xmlify(FRIENDICA_VERSION),
 439                         '$feed_id'      => xmlify($a->get_baseurl() . '/profile/' . $owner['nickname'] ),
 440                         '$feed_title'   => xmlify($owner['name']),
 441                         '$feed_updated' => xmlify(datetime_convert('UTC', 'UTC', $updated . '+00:00' , ATOM_TIME)) ,
 442                         '$hub'          => $hubxml,
 443                         '$salmon'       => '',  // private feed, we don't use salmon here
 444                         '$name'         => xmlify($owner['name']),
 445                         '$profile_page' => xmlify($owner['url']),
 446                         '$photo'        => xmlify($owner['photo']),
 447                         '$thumb'        => xmlify($owner['thumb']),
 448                         '$picdate'      => xmlify(datetime_convert('UTC','UTC',$owner['avatar-date'] . '+00:00' , ATOM_TIME)) ,
 449                         '$uridate'      => xmlify(datetime_convert('UTC','UTC',$owner['uri-date']    . '+00:00' , ATOM_TIME)) ,
 450                         '$namdate'      => xmlify(datetime_convert('UTC','UTC',$owner['name-date']   . '+00:00' , ATOM_TIME)) ,
 451                         '$birthday'     => $birthday,
 452                         '$community'    => (($owner['page-flags'] == PAGE_COMMUNITY) ? '<dfrn:community>1</dfrn:community>' : '')
 453
 454         ));
 455
 456         if($mail) {
 457                 $public_message = false;  // mail is  not public
 458
 459                 $body = fix_private_photos($item['body'],$owner['uid'],null,$message[0]['contact-id']);
 460
 461                 $atom .= replace_macros($mail_template, array(
 462                         '$name'         => xmlify($owner['name']),
 463                         '$profile_page' => xmlify($owner['url']),
 464                         '$thumb'        => xmlify($owner['thumb']),
 465                         '$item_id'      => xmlify($item['uri']),
 466                         '$subject'      => xmlify($item['title']),
 467                         '$created'      => xmlify(datetime_convert('UTC', 'UTC', $item['created'] . '+00:00' , ATOM_TIME)),
 468                         '$content'      => xmlify($body),
 469                         '$parent_id'    => xmlify($item['parent-uri'])
 470                 ));
 471         } elseif($fsuggest) {
 472                 $public_message = false;  // suggestions are not public
 473
 474                 $sugg_template = get_markup_template('atom_suggest.tpl');
 475
 476                 $atom .= replace_macros($sugg_template, array(
 477                         '$name'         => xmlify($item['name']),
 478                         '$url'          => xmlify($item['url']),
 479                         '$photo'        => xmlify($item['photo']),
 480                         '$request'      => xmlify($item['request']),
 481                         '$note'         => xmlify($item['note'])
 482                 ));
 483
 484                 // We don't need this any more
 485
 486                 q("DELETE FROM `fsuggest` WHERE `id` = %d LIMIT 1",
 487                         intval($item['id'])
 488                 );
 489
 490         } elseif($relocate) {
 491                 $public_message = false;  // suggestions are not public
 492
 493                 $sugg_template = get_markup_template('atom_relocate.tpl');
 494
 495                 /* get site pubkey. this could be a new installation with no site keys*/
 496                 $pubkey = get_config('system','site_pubkey');
 497                 if(! $pubkey) {
 498                         $res = new_keypair(1024);
 499                         set_config('system','site_prvkey', $res['prvkey']);
 500                         set_config('system','site_pubkey', $res['pubkey']);
 501                 }
 502
 503                 $rp = q("SELECT `resource-id` , `scale`, type FROM `photo`
 504                                                 WHERE `profile` = 1 AND `uid` = %d ORDER BY scale;", $uid);
 505                 $photos = array();
 506                 $ext = Photo::supportedTypes();
 507                 foreach($rp as $p){
 508                         $photos[$p['scale']] = $a->get_baseurl().'/photo/'.$p['resource-id'].'-'.$p['scale'].'.'.$ext[$p['type']];
 509                 }
 510                 unset($rp, $ext);
 511
 512                 $atom .= replace_macros($sugg_template, array(
 513                                         '$name' => xmlify($owner['name']),
 514                                         '$photo' => xmlify($photos[4]),
 515                                         '$thumb' => xmlify($photos[5]),
 516                                         '$micro' => xmlify($photos[6]),
 517                                         '$url' => xmlify($owner['url']),
 518                                         '$request' => xmlify($owner['request']),
 519                                         '$confirm' => xmlify($owner['confirm']),
 520                                         '$notify' => xmlify($owner['notify']),
 521                                         '$poll' => xmlify($owner['poll']),
 522                                         '$sitepubkey' => xmlify(get_config('system','site_pubkey')),
 523                                         //'$pubkey' => xmlify($owner['pubkey']),
 524                                         //'$prvkey' => xmlify($owner['prvkey']),
 525                         ));
 526                 $recipients_relocate = q("SELECT * FROM contact WHERE uid = %d  AND self = 0 AND network = '%s'" , intval($uid), NETWORK_DFRN);
 527                 unset($photos);
 528         } else {
 529
 530                 $slap = ostatus_salmon($target_item,$owner);
 531
 532                 if($followup) {
 533                         logger("Section A1: ".$item_id);
 534                         foreach($items as $item) {  // there is only one item
 535                                 if(! $item['parent'])
 536                                         continue;
 537                                 if($item['id'] == $item_id) {
 538                                         logger('notifier: followup: item: ' . print_r($item,true), LOGGER_DATA);
 539                                         $atom .= atom_entry($item,'text',null,$owner,false);
 540                                 }
 541                         }
 542                 } else {
 543                         logger("Section A2: ".$item_id);
 544                         foreach($items as $item) {
 545
 546                                 if(! $item['parent'])
 547                                         continue;
 548
 549                                 // private emails may be in included in public conversations. Filter them.
 550
 551                                 if(($public_message) && $item['private'] == 1)
 552                                         continue;
 553
 554
 555                                 $contact = get_item_contact($item,$contacts);
 556
 557                                 if(! $contact)
 558                                         continue;
 559
 560                                 if($normal_mode) {
 561
 562                                         // we only need the current item, but include the parent because without it
 563                                         // older sites without a corresponding dfrn_notify change may do the wrong thing.
 564
 565                                     if($item_id == $item['id'] || $item['id'] == $item['parent'])
 566                                                 $atom .= atom_entry($item,'text',null,$owner,true);
 567                                 } else
 568                                         $atom .= atom_entry($item,'text',null,$owner,true);
 569
 570                                 if(($top_level) && ($public_message) && ($item['author-link'] === $item['owner-link']) && (! $expire))
 571                                         $slaps[] = ostatus_salmon($item,$owner);
 572                         }
 573                 }
 574         }
 575         $atom .= '</feed>' . "\r\n";
 576
 577         logger('notifier: ' . $atom, LOGGER_DATA);
 578
 579         logger('notifier: slaps: ' . print_r($slaps,true), LOGGER_DATA);
 580
 581         // If this is a public message and pubmail is set on the parent, include all your email contacts
 582
 583         $mail_disabled = ((function_exists('imap_open') && (! get_config('system','imap_disabled'))) ? 0 : 1);
 584
 585         if(! $mail_disabled) {
 586                 if((! strlen($target_item['allow_cid'])) && (! strlen($target_item['allow_gid']))
 587                         && (! strlen($target_item['deny_cid'])) && (! strlen($target_item['deny_gid']))
 588                         && (intval($target_item['pubmail']))) {
 589                         $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `network` = '%s'",
 590                                 intval($uid),
 591                                 dbesc(NETWORK_MAIL)
 592                         );
 593                         if(count($r)) {
 594                                 foreach($r as $rr)
 595                                         $recipients[] = $rr['id'];
 596                         }
 597                 }
 598         }
 599
 600         if($followup)
 601                 $recip_str = implode(', ', $recipients_followup);
 602         else
 603                 $recip_str = implode(', ', $recipients);
 604
 605         if ($relocate)
 606                 $r = $recipients_relocate;
 607         else
 608                 $r = q("SELECT * FROM `contact` WHERE `id` IN (%s) AND NOT `blocked` AND NOT `pending`",
 609                         dbesc($recip_str)
 610                 );
 611
 612
 613         require_once('include/salmon.php');
 614
 615         $interval = ((get_config('system','delivery_interval') === false) ? 2 : intval(get_config('system','delivery_interval')));
 616
 617         // If we are using the worker we don't need a delivery interval
 618         if (get_config("system", "worker"))
 619                 $interval = false;
 620
 621         // delivery loop
 622
 623         if(count($r)) {
 624
 625                 foreach($r as $contact) {
 626                         if((! $mail) && (! $fsuggest) && (! $followup) && (!$relocate) && (! $contact['self'])) {
 627                                 if(($contact['network'] === NETWORK_DIASPORA) && ($public_message))
 628                                         continue;
 629                                 q("insert into deliverq ( `cmd`,`item`,`contact` ) values ('%s', %d, %d )",
 630                                         dbesc($cmd),
 631                                         intval($item_id),
 632                                         intval($contact['id'])
 633                                 );
 634                         }
 635                 }
 636
 637
 638                 // This controls the number of deliveries to execute with each separate delivery process.
 639                 // By default we'll perform one delivery per process. Assuming a hostile shared hosting
 640                 // provider, this provides the greatest chance of deliveries if processes start getting
 641                 // killed. We can also space them out with the delivery_interval to also help avoid them
 642                 // getting whacked.
 643
 644                 // If $deliveries_per_process > 1, we will chain this number of multiple deliveries
 645                 // together into a single process. This will reduce the overall number of processes
 646                 // spawned for each delivery, but they will run longer.
 647
 648                 // When using the workerqueue, we don't need this functionality.
 649
 650                 $deliveries_per_process = intval(get_config('system','delivery_batch_count'));
 651                 if (($deliveries_per_process <= 0) OR get_config("system", "worker"))
 652                         $deliveries_per_process = 1;
 653
 654                 $this_batch = array();
 655
 656                 for($x = 0; $x < count($r); $x ++) {
 657                         $contact = $r[$x];
 658
 659                         if($contact['self'])
 660                                 continue;
 661
 662                         logger("Deliver ".$target_item["guid"]." to ".$contact['url'], LOGGER_DEBUG);
 663
 664                         // potentially more than one recipient. Start a new process and space them out a bit.
 665                         // we will deliver single recipient types of message and email recipients here.
 666
 667                         if((! $mail) && (! $fsuggest) && (!$relocate) && (! $followup)) {
 668
 669                                 $this_batch[] = $contact['id'];
 670
 671                                 if(count($this_batch) == $deliveries_per_process) {
 672                                         proc_run('php','include/delivery.php',$cmd,$item_id,$this_batch);
 673                                         $this_batch = array();
 674                                         if($interval)
 675                                                 @time_sleep_until(microtime(true) + (float) $interval);
 676                                 }
 677                                 continue;
 678                         }
 679                         // be sure to pick up any stragglers
 680                         if(count($this_batch))
 681                                 proc_run('php','include/delivery.php',$cmd,$item_id,$this_batch);
 682
 683
 684                         $deliver_status = 0;
 685
 686                         logger("main delivery by notifier: followup=$followup mail=$mail fsuggest=$fsuggest relocate=$relocate");
 687
 688                         switch($contact['network']) {
 689                                 case NETWORK_DFRN:
 690
 691                                         // perform local delivery if we are on the same site
 692
 693                                         $basepath =  implode('/', array_slice(explode('/',$contact['url']),0,3));
 694
 695                                         if(link_compare($basepath,$a->get_baseurl())) {
 696                                                 logger("Section B1: ".$item_id);
 697
 698                                                 $nickname = basename($contact['url']);
 699                                                 if($contact['issued-id'])
 700                                                         $sql_extra = sprintf(" AND `dfrn-id` = '%s' ", dbesc($contact['issued-id']));
 701                                                 else
 702                                                         $sql_extra = sprintf(" AND `issued-id` = '%s' ", dbesc($contact['dfrn-id']));
 703
 704                                                 $x = q("SELECT  `contact`.*, `contact`.`uid` AS `importer_uid`,
 705                                                         `contact`.`pubkey` AS `cpubkey`,
 706                                                         `contact`.`prvkey` AS `cprvkey`,
 707                                                         `contact`.`thumb` AS `thumb`,
 708                                                         `contact`.`url` as `url`,
 709                                                         `contact`.`name` as `senderName`,
 710                                                         `user`.*
 711                                                         FROM `contact`
 712                                                         INNER JOIN `user` ON `contact`.`uid` = `user`.`uid`
 713                                                         WHERE `contact`.`blocked` = 0 AND `contact`.`archive` = 0
 714                                                         AND `contact`.`pending` = 0
 715                                                         AND `contact`.`network` = '%s' AND `user`.`nickname` = '%s'
 716                                                         $sql_extra
 717                                                         AND `user`.`account_expired` = 0 AND `user`.`account_removed` = 0 LIMIT 1",
 718                                                         dbesc(NETWORK_DFRN),
 719                                                         dbesc($nickname)
 720                                                 );
 721
 722                                                 if($x && count($x)) {
 723                                                         $write_flag = ((($x[0]['rel']) && ($x[0]['rel'] != CONTACT_IS_SHARING)) ? true : false);
 724                                                         if((($owner['page-flags'] == PAGE_COMMUNITY) || ($write_flag)) && (! $x[0]['writable'])) {
 725                                                                 q("update contact set writable = 1 where id = %d",
 726                                                                         intval($x[0]['id'])
 727                                                                 );
 728                                                                 $x[0]['writable'] = 1;
 729                                                         }
 730
 731                                                         // if contact's ssl policy changed, which we just determined
 732                                                         // is on our own server, update our contact links
 733
 734                                                         $ssl_policy = get_config('system','ssl_policy');
 735                                                         fix_contact_ssl_policy($x[0],$ssl_policy);
 736
 737                                                         // If we are setup as a soapbox we aren't accepting top level posts from this person
 738
 739                                                         if (($x[0]['page-flags'] == PAGE_SOAPBOX) AND $top_level)
 740                                                                 break;
 741
 742                                                         require_once('library/simplepie/simplepie.inc');
 743                                                         logger('mod-delivery: local delivery');
 744                                                         local_delivery($x[0],$atom);
 745                                                         break;
 746                                                 }
 747                                         }
 748                                         logger("Section B2: ".$item_id);
 749
 750                                         logger('notifier: dfrndelivery: ' . $contact['name']);
 751                                         $deliver_status = dfrn_deliver($owner,$contact,$atom);
 752
 753                                         logger('notifier: dfrn_delivery returns ' . $deliver_status);
 754
 755                                         if($deliver_status == (-1)) {
 756                                                 logger('notifier: delivery failed: queuing message');
 757                                                 // queue message for redelivery
 758                                                 add_to_queue($contact['id'],NETWORK_DFRN,$atom);
 759                                         }
 760                                         break;
 761                                 case NETWORK_OSTATUS:
 762
 763                                         // Do not send to ostatus if we are not configured to send to public networks
 764                                         if($owner['prvnets'])
 765                                                 break;
 766
 767                                         if(get_config('system','ostatus_disabled') || get_config('system','dfrn_only'))
 768                                                 break;
 769
 770                                         if($followup && $contact['notify']) {
 771                                                 logger("Section C1: ".$item_id);
 772                                                 logger('slapdelivery followup item '.$item_id.' to ' . $contact['name']);
 773                                                 $deliver_status = slapper($owner,$contact['notify'],$slap);
 774
 775                                                 if($deliver_status == (-1)) {
 776                                                         // queue message for redelivery
 777                                                         add_to_queue($contact['id'],NETWORK_OSTATUS,$slap);
 778                                                 }
 779                                         } else {
 780                                                 logger("Section C2: ".$item_id);
 781
 782                                                 // only send salmon if public - e.g. if it's ok to notify
 783                                                 // a public hub, it's ok to send a salmon
 784
 785                                                 if((count($slaps)) && ($public_message) && (! $expire)) {
 786                                                         logger('slapdelivery item '.$item_id.' to ' . $contact['name']);
 787                                                         foreach($slaps as $slappy) {
 788                                                                 if($contact['notify']) {
 789                                                                         $deliver_status = slapper($owner,$contact['notify'],$slappy);
 790                                                                         if($deliver_status == (-1)) {
 791                                                                                 // queue message for redelivery
 792                                                                                 add_to_queue($contact['id'],NETWORK_OSTATUS,$slappy);
 793                                                                         }
 794                                                                 }
 795                                                         }
 796                                                 }
 797                                         }
 798                                         break;
 799
 800                                 case NETWORK_MAIL:
 801                                 case NETWORK_MAIL2:
 802
 803                                         if(get_config('system','dfrn_only'))
 804                                                 break;
 805
 806                                         // WARNING: does not currently convert to RFC2047 header encodings, etc.
 807
 808                                         $addr = $contact['addr'];
 809                                         if(! strlen($addr))
 810                                                 break;
 811
 812                                         if($cmd === 'wall-new' || $cmd === 'comment-new') {
 813
 814                                                 $it = null;
 815                                                 if($cmd === 'wall-new')
 816                                                         $it = $items[0];
 817                                                 else {
 818                                                         $r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
 819                                                                 intval($argv[2]),
 820                                                                 intval($uid)
 821                                                         );
 822                                                         if(count($r))
 823                                                                 $it = $r[0];
 824                                                 }
 825                                                 if(! $it)
 826                                                         break;
 827
 828
 829
 830                                                 $local_user = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
 831                                                         intval($uid)
 832                                                 );
 833                                                 if(! count($local_user))
 834                                                         break;
 835
 836                                                 $reply_to = '';
 837                                                 $r1 = q("SELECT * FROM `mailacct` WHERE `uid` = %d LIMIT 1",
 838                                                         intval($uid)
 839                                                 );
 840                                                 if($r1 && $r1[0]['reply_to'])
 841                                                         $reply_to = $r1[0]['reply_to'];
 842
 843                                                 $subject  = (($it['title']) ? email_header_encode($it['title'],'UTF-8') : t("\x28no subject\x29")) ;
 844
 845                                                 // only expose our real email address to true friends
 846                                                 if(($contact['rel'] == CONTACT_IS_FRIEND) && (! $contact['blocked']))
 847                                                         if($reply_to) {
 848                                                                 $headers  = 'From: ' . email_header_encode($local_user[0]['username'],'UTF-8') . ' <' . $reply_to . '>' . "\n";
 849                                                                 $headers .= 'Sender: '.$local_user[0]['email']."\n";
 850                                                         } else
 851                                                                 $headers  = 'From: ' . email_header_encode($local_user[0]['username'],'UTF-8') . ' <' . $local_user[0]['email'] . '>' . "\n";
 852                                                 else
 853                                                         $headers  = 'From: ' . email_header_encode($local_user[0]['username'],'UTF-8') . ' <' . t('noreply') . '@' . $a->get_hostname() . '>' . "\n";
 854
 855                                                 //if($reply_to)
 856                                                 //      $headers .= 'Reply-to: ' . $reply_to . "\n";
 857
 858                                                 $headers .= 'Message-Id: <' . iri2msgid($it['uri']) . '>' . "\n";
 859
 860                                                 if($it['uri'] !== $it['parent-uri']) {
 861                                                         $headers .= "References: <".iri2msgid($it["parent-uri"]).">";
 862
 863                                                         // If Threading is enabled, write down the correct parent
 864                                                         if (($it["thr-parent"] != "") and ($it["thr-parent"] != $it["parent-uri"]))
 865                                                                 $headers .= " <".iri2msgid($it["thr-parent"]).">";
 866                                                         $headers .= "\n";
 867
 868                                                         if(!$it['title']) {
 869                                                                 $r = q("SELECT `title` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 870                                                                         dbesc($it['parent-uri']),
 871                                                                         intval($uid));
 872
 873                                                                 if(count($r) AND ($r[0]['title'] != ''))
 874                                                                         $subject = $r[0]['title'];
 875                                                                 else {
 876                                                                         $r = q("SELECT `title` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d LIMIT 1",
 877                                                                                 dbesc($it['parent-uri']),
 878                                                                                 intval($uid));
 879
 880                                                                         if(count($r) AND ($r[0]['title'] != ''))
 881                                                                                 $subject = $r[0]['title'];
 882                                                                 }
 883                                                         }
 884                                                         if(strncasecmp($subject,'RE:',3))
 885                                                                 $subject = 'Re: '.$subject;
 886                                                 }
 887                                                 email_send($addr, $subject, $headers, $it);
 888                                         }
 889                                         break;
 890                                 case NETWORK_DIASPORA:
 891                                         if(get_config('system','dfrn_only') || (! get_config('system','diaspora_enabled')))
 892                                                 break;
 893
 894                                         if($mail) {
 895                                                 logger("Section D1: ".$item_id);
 896                                                 diaspora_send_mail($item,$owner,$contact);
 897                                                 break;
 898                                         }
 899
 900                                         if(! $normal_mode)
 901                                                 break;
 902
 903                                         // special handling for followup to public post
 904                                         // all other public posts processed as public batches further below
 905
 906                                         if($public_message) {
 907                                                 logger("Section D2: ".$item_id);
 908                                                 if($followup) {
 909                                                         logger("Section D3: ".$item_id);
 910                                                         diaspora_send_followup($target_item,$owner,$contact, true);
 911                                                 }
 912                                                 break;
 913                                         }
 914                                         logger("Section D4: ".$item_id);
 915
 916                                         if(! $contact['pubkey'])
 917                                                 break;
 918
 919                                         $unsupported_activities = array(ACTIVITY_DISLIKE, ACTIVITY_ATTEND, ACTIVITY_ATTENDNO, ACTIVITY_ATTENDMAYBE);
 920
 921                                         //don't transmit activities which are not supported by diaspora
 922                                         foreach($unsupported_activities as $act) {
 923                                                 if(activity_match($target_item['verb'],$act)) {
 924                                                         break 2;
 925                                                 }
 926                                         }
 927
 928                                         if(($target_item['deleted']) && (($target_item['uri'] === $target_item['parent-uri']) || $followup)) {
 929                                                 logger("Section D5: ".$item_id);
 930                                                 // send both top-level retractions and relayable retractions for owner to relay
 931                                                 diaspora_send_retraction($target_item,$owner,$contact);
 932                                                 break;
 933                                         }
 934                                         elseif($followup) {
 935                                                 logger("Section D6: ".$item_id);
 936                                                 // send comments and likes to owner to relay
 937                                                 diaspora_send_followup($target_item,$owner,$contact);
 938                                                 break;
 939                                         }
 940                                         elseif($target_item['uri'] !== $target_item['parent-uri']) {
 941                                                 logger("Section D7: ".$item_id);
 942                                                 // we are the relay - send comments, likes and relayable_retractions
 943                                                 // (of comments and likes) to our conversants
 944                                                 diaspora_send_relay($target_item,$owner,$contact);
 945                                                 break;
 946                                         }
 947                                         elseif(($top_level) && (! $walltowall)) {
 948                                                 logger("Section D8: ".$item_id);
 949                                                 // currently no workable solution for sending walltowall
 950                                                 diaspora_send_status($target_item,$owner,$contact);
 951                                                 break;
 952                                         }
 953
 954                                         break;
 955
 956                                 default:
 957                                         break;
 958                         }
 959                 }
 960         }
 961
 962         // send additional slaps to mentioned remote tags (@foo@example.com)
 963
 964         //if($slap && count($url_recipients) && ($followup || $top_level) && ($public_message || $push_notify) && (! $expire)) {
 965         if($slap && count($url_recipients) && ($public_message || $push_notify) && (!$expire)) {
 966                 if(! get_config('system','dfrn_only')) {
 967                         foreach($url_recipients as $url) {
 968                                 if($url) {
 969                                         logger('notifier: urldelivery: ' . $url);
 970                                         $deliver_status = slapper($owner,$url,$slap);
 971                                         // TODO: redeliver/queue these items on failure, though there is no contact record
 972                                 }
 973                         }
 974                 }
 975         }
 976
 977
 978         if($public_message) {
 979
 980                 if (!$followup)
 981                         $r0 = diaspora_fetch_relay();
 982                 else
 983                         $r0 = array();
 984
 985                 $r1 = q("SELECT DISTINCT(`batch`), `id`, `name`,`network` FROM `contact` WHERE `network` = '%s'
 986                         AND `uid` = %d AND `rel` != %d group by `batch` ORDER BY rand() ",
 987                         dbesc(NETWORK_DIASPORA),
 988                         intval($owner['uid']),
 989                         intval(CONTACT_IS_SHARING)
 990                 );
 991
 992                 $r2 = q("SELECT `id`, `name`,`network` FROM `contact`
 993                         WHERE `network` in ( '%s', '%s')  AND `uid` = %d AND `blocked` = 0 AND `pending` = 0 AND `archive` = 0
 994                         AND `rel` != %d order by rand() ",
 995                         dbesc(NETWORK_DFRN),
 996                         dbesc(NETWORK_MAIL2),
 997                         intval($owner['uid']),
 998                         intval(CONTACT_IS_SHARING)
 999                 );
1000
1001                 $r = array_merge($r2,$r1,$r0);
1002
1003                 if(count($r)) {
1004                         logger('pubdeliver: ' . print_r($r,true), LOGGER_DEBUG);
1005
1006                         // throw everything into the queue in case we get killed
1007
1008                         foreach($r as $rr) {
1009                                 if((! $mail) && (! $fsuggest) && (! $followup)) {
1010                                         q("insert into deliverq ( `cmd`,`item`,`contact` ) values ('%s', %d, %d )",
1011                                                 dbesc($cmd),
1012                                                 intval($item_id),
1013                                                 intval($rr['id'])
1014                                         );
1015                                 }
1016                         }
1017
1018                         foreach($r as $rr) {
1019
1020                                 // except for Diaspora batch jobs
1021                                 // Don't deliver to folks who have already been delivered to
1022
1023                                 if(($rr['network'] !== NETWORK_DIASPORA) && (in_array($rr['id'],$conversants))) {
1024                                         logger('notifier: already delivered id=' . $rr['id']);
1025                                         continue;
1026                                 }
1027
1028                                 if((! $mail) && (! $fsuggest) && (! $followup)) {
1029                                         logger('notifier: delivery agent: ' . $rr['name'] . ' ' . $rr['id']);
1030                                         proc_run('php','include/delivery.php',$cmd,$item_id,$rr['id']);
1031                                         if($interval)
1032                                                 @time_sleep_until(microtime(true) + (float) $interval);
1033                                 }
1034                         }
1035                 }
1036
1037                 $push_notify = true;
1038
1039         }
1040
1041
1042         if($push_notify AND strlen($hub)) {
1043                 $hubs = explode(',', $hub);
1044                 if(count($hubs)) {
1045                         foreach($hubs as $h) {
1046                                 $h = trim($h);
1047                                 if(! strlen($h))
1048                                         continue;
1049
1050                                 if ($h === '[internal]') {
1051                                         // Set push flag for PuSH subscribers to this topic,
1052                                         // they will be notified in queue.php
1053                                         q("UPDATE `push_subscriber` SET `push` = 1 " .
1054                                           "WHERE `nickname` = '%s'", dbesc($owner['nickname']));
1055
1056                                         logger('Activating internal PuSH for item '.$item_id, LOGGER_DEBUG);
1057
1058                                 } else {
1059
1060                                         $params = 'hub.mode=publish&hub.url=' . urlencode( $a->get_baseurl() . '/dfrn_poll/' . $owner['nickname'] );
1061                                         post_url($h,$params);
1062                                         logger('publish for item '.$item_id.' ' . $h . ' ' . $params . ' returned ' . $a->get_curl_code());
1063                                 }
1064                                 if(count($hubs) > 1)
1065                                         sleep(7);                               // try and avoid multiple hubs responding at precisely the same time
1066                         }
1067                 }
1068
1069                 // Handling the pubsubhubbub requests
1070                 proc_run('php','include/pubsubpublish.php');
1071         }
1072
1073         // If the item was deleted, clean up the `sign` table
1074         if($target_item['deleted']) {
1075                 $r = q("DELETE FROM sign where `retract_iid` = %d",
1076                         intval($target_item['id'])
1077                 );
1078         }
1079
1080         logger('notifier: calling hooks', LOGGER_DEBUG);
1081
1082         if($normal_mode)
1083                 call_hooks('notifier_normal',$target_item);
1084
1085         call_hooks('notifier_end',$target_item);
1086
1087         return;
1088 }
1089
1090
1091 if (array_search(__file__,get_included_files())===0){
1092         notifier_run($_SERVER["argv"],$_SERVER["argc"]);
1093         killme();
1094 }