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