src/Worker/Delivery.php

   1 <?php
   2 /**
   3  * @file src/Worker/Delivery.php
   4  */
   5
   6 namespace Friendica\Worker;
   7
   8 use Friendica\App;
   9 use Friendica\Core\System;
  10 use Friendica\Core\Config;
  11 use Friendica\Database\DBM;
  12 use Friendica\Protocol\Diaspora;
  13 use Friendica\Protocol\DFRN;
  14
  15 require_once 'include/queue_fn.php';
  16 require_once 'include/html2plain.php';
  17 require_once 'include/datetime.php';
  18 require_once 'include/items.php';
  19 require_once 'include/bbcode.php';
  20 require_once 'include/email.php';
  21
  22 /// @todo This is some ugly code that needs to be split into several methods
  23
  24 class Delivery {
  25         public static function execute($cmd, $item_id, $contact_id) {
  26                 global $a;
  27
  28                 logger('delivery: invoked: '.$cmd.': '.$item_id.' to '.$contact_id, LOGGER_DEBUG);
  29
  30                 $expire = false;
  31                 $mail = false;
  32                 $fsuggest = false;
  33                 $relocate = false;
  34                 $top_level = false;
  35                 $recipients = array();
  36                 $url_recipients = array();
  37                 $followup = false;
  38
  39                 $normal_mode = true;
  40
  41                 $recipients[] = $contact_id;
  42
  43                 if ($cmd === 'mail') {
  44                         $normal_mode = false;
  45                         $mail = true;
  46                         $message = q("SELECT * FROM `mail` WHERE `id` = %d LIMIT 1",
  47                                         intval($item_id)
  48                         );
  49                         if (!count($message)) {
  50                                 return;
  51                         }
  52                         $uid = $message[0]['uid'];
  53                         $recipients[] = $message[0]['contact-id'];
  54                         $item = $message[0];
  55                 } elseif ($cmd === 'expire') {
  56                         $normal_mode = false;
  57                         $expire = true;
  58                         $items = q("SELECT * FROM `item` WHERE `uid` = %d AND `wall` = 1
  59                                 AND `deleted` = 1 AND `changed` > UTC_TIMESTAMP() - INTERVAL 30 MINUTE",
  60                                 intval($item_id)
  61                         );
  62                         $uid = $item_id;
  63                         $item_id = 0;
  64                         if (!count($items)) {
  65                                 return;
  66                         }
  67                 } elseif ($cmd === 'suggest') {
  68                         $normal_mode = false;
  69                         $fsuggest = true;
  70
  71                         $suggest = q("SELECT * FROM `fsuggest` WHERE `id` = %d LIMIT 1",
  72                                 intval($item_id)
  73                         );
  74                         if (!count($suggest)) {
  75                                 return;
  76                         }
  77                         $uid = $suggest[0]['uid'];
  78                         $recipients[] = $suggest[0]['cid'];
  79                         $item = $suggest[0];
  80                 } elseif ($cmd === 'relocate') {
  81                         $normal_mode = false;
  82                         $relocate = true;
  83                         $uid = $item_id;
  84                 } else {
  85                         // find ancestors
  86                         $r = q("SELECT * FROM `item` WHERE `id` = %d AND visible = 1 AND moderated = 0 LIMIT 1",
  87                                 intval($item_id)
  88                         );
  89
  90                         if (!DBM::is_result($r) || !intval($r[0]['parent'])) {
  91                                 return;
  92                         }
  93
  94                         $target_item = $r[0];
  95                         $parent_id = intval($r[0]['parent']);
  96                         $uid = $r[0]['uid'];
  97                         $updated = $r[0]['edited'];
  98
  99                         $items = q("SELECT `item`.*, `sign`.`signed_text`,`sign`.`signature`,`sign`.`signer`
 100                                 FROM `item` LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id` WHERE `parent` = %d AND visible = 1 AND moderated = 0 ORDER BY `id` ASC",
 101                                 intval($parent_id)
 102                         );
 103
 104                         if (!count($items)) {
 105                                 return;
 106                         }
 107
 108                         $icontacts = null;
 109                         $contacts_arr = array();
 110                         foreach ($items as $item) {
 111                                 if (!in_array($item['contact-id'],$contacts_arr)) {
 112                                         $contacts_arr[] = intval($item['contact-id']);
 113                                 }
 114                         }
 115                         if (count($contacts_arr)) {
 116                                 $str_contacts = implode(',',$contacts_arr);
 117                                 $icontacts = q("SELECT * FROM `contact`
 118                                         WHERE `id` IN ( $str_contacts ) "
 119                                 );
 120                         }
 121                         if ( !($icontacts && count($icontacts))) {
 122                                 return;
 123                         }
 124
 125                         // avoid race condition with deleting entries
 126
 127                         if ($items[0]['deleted']) {
 128                                 foreach ($items as $item) {
 129                                         $item['deleted'] = 1;
 130                                 }
 131                         }
 132
 133                         // When commenting too fast after delivery, a post wasn't recognized as top level post.
 134                         // The count then showed more than one entry. The additional check should help.
 135                         // The check for the "count" should be superfluous, but I'm not totally sure by now, so we keep it.
 136                         if ((($items[0]['id'] == $item_id) || (count($items) == 1)) && ($items[0]['uri'] === $items[0]['parent-uri'])) {
 137                                 logger('delivery: top level post');
 138                                 $top_level = true;
 139                         }
 140                 }
 141
 142                 $r = q("SELECT `contact`.*, `user`.`pubkey` AS `upubkey`, `user`.`prvkey` AS `uprvkey`,
 143                         `user`.`timezone`, `user`.`nickname`, `user`.`sprvkey`, `user`.`spubkey`,
 144                         `user`.`page-flags`, `user`.`account-type`, `user`.`prvnets`
 145                         FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
 146                         WHERE `contact`.`uid` = %d AND `contact`.`self` = 1 LIMIT 1",
 147                         intval($uid)
 148                 );
 149
 150                 if (!DBM::is_result($r)) {
 151                         return;
 152                 }
 153
 154                 $owner = $r[0];
 155
 156                 $walltowall = (($top_level && ($owner['id'] != $items[0]['contact-id'])) ? true : false);
 157
 158                 $public_message = true;
 159
 160                 if (!($mail || $fsuggest || $relocate)) {
 161                         require_once 'include/group.php';
 162
 163                         $parent = $items[0];
 164
 165                         // This is IMPORTANT!!!!
 166
 167                         // We will only send a "notify owner to relay" or followup message if the referenced post
 168                         // originated on our system by virtue of having our hostname somewhere
 169                         // in the URI, AND it was a comment (not top_level) AND the parent originated elsewhere.
 170                         // if $parent['wall'] == 1 we will already have the parent message in our array
 171                         // and we will relay the whole lot.
 172
 173                         // expire sends an entire group of expire messages and cannot be forwarded.
 174                         // However the conversation owner will be a part of the conversation and will
 175                         // be notified during this run.
 176                         // Other DFRN conversation members will be alerted during polled updates.
 177
 178                         // Diaspora members currently are not notified of expirations, and other networks have
 179                         // either limited or no ability to process deletions. We should at least fix Diaspora
 180                         // by stringing togther an array of retractions and sending them onward.
 181
 182
 183                         $localhost = $a->get_hostname();
 184                         if (strpos($localhost,':')) {
 185                                 $localhost = substr($localhost,0,strpos($localhost,':'));
 186                         }
 187                         /**
 188                          *
 189                          * Be VERY CAREFUL if you make any changes to the following line. Seemingly innocuous changes
 190                          * have been known to cause runaway conditions which affected several servers, along with
 191                          * permissions issues.
 192                          *
 193                          */
 194
 195                         $relay_to_owner = false;
 196
 197                         if (!$top_level && ($parent['wall'] == 0) && !$expire && stristr($target_item['uri'],$localhost)) {
 198                                 $relay_to_owner = true;
 199                         }
 200
 201                         if ($relay_to_owner) {
 202                                 logger('followup '.$target_item["guid"], LOGGER_DEBUG);
 203                                 // local followup to remote post
 204                                 $followup = true;
 205                         }
 206
 207                         if ((strlen($parent['allow_cid']))
 208                                 || (strlen($parent['allow_gid']))
 209                                 || (strlen($parent['deny_cid']))
 210                                 || (strlen($parent['deny_gid']))
 211                                 || $parent["private"]) {
 212                                 $public_message = false; // private recipients, not public
 213                         }
 214
 215                 }
 216
 217                 $r = q("SELECT * FROM `contact` WHERE `id` = %d AND `blocked` = 0 AND `pending` = 0",
 218                         intval($contact_id)
 219                 );
 220
 221                 if (DBM::is_result($r)) {
 222                         $contact = $r[0];
 223                 }
 224                 if ($contact['self']) {
 225                         return;
 226                 }
 227                 $deliver_status = 0;
 228
 229                 logger("main delivery by delivery: followup=$followup mail=$mail fsuggest=$fsuggest relocate=$relocate - network ".$contact['network']);
 230
 231                 switch($contact['network']) {
 232
 233                         case NETWORK_DFRN:
 234                                 logger('notifier: '.$target_item["guid"].' dfrndelivery: '.$contact['name']);
 235
 236                                 if ($mail) {
 237                                         $item['body'] = fix_private_photos($item['body'],$owner['uid'],null,$message[0]['contact-id']);
 238                                         $atom = DFRN::mail($item, $owner);
 239                                 } elseif ($fsuggest) {
 240                                         $atom = DFRN::fsuggest($item, $owner);
 241                                         q("DELETE FROM `fsuggest` WHERE `id` = %d LIMIT 1", intval($item['id']));
 242                                 } elseif ($relocate) {
 243                                         $atom = DFRN::relocate($owner, $uid);
 244                                 } elseif ($followup) {
 245                                         $msgitems = array();
 246                                         foreach ($items as $item) {  // there is only one item
 247                                                 if (!$item['parent']) {
 248                                                         return;
 249                                                 }
 250                                                 if ($item['id'] == $item_id) {
 251                                                         logger('followup: item: '. print_r($item,true), LOGGER_DATA);
 252                                                         $msgitems[] = $item;
 253                                                 }
 254                                         }
 255                                         $atom = DFRN::entries($msgitems,$owner);
 256                                 } else {
 257                                         $msgitems = array();
 258                                         foreach ($items as $item) {
 259                                                 if (!$item['parent']) {
 260                                                         return;
 261                                                 }
 262
 263                                                 // private emails may be in included in public conversations. Filter them.
 264                                                 if ($public_message && $item['private']) {
 265                                                         return;
 266                                                 }
 267
 268                                                 $item_contact = get_item_contact($item,$icontacts);
 269                                                 if (!$item_contact) {
 270                                                         return;
 271                                                 }
 272
 273                                                 if ($normal_mode) {
 274                                                         if ($item_id == $item['id'] || $item['id'] == $item['parent']) {
 275                                                                 $item["entry:comment-allow"] = true;
 276                                                                 $item["entry:cid"] = (($top_level) ? $contact['id'] : 0);
 277                                                                 $msgitems[] = $item;
 278                                                         }
 279                                                 } else {
 280                                                         $item["entry:comment-allow"] = true;
 281                                                         $msgitems[] = $item;
 282                                                 }
 283                                         }
 284                                         $atom = DFRN::entries($msgitems,$owner);
 285                                 }
 286
 287                                 logger('notifier entry: '.$contact["url"].' '.$target_item["guid"].' entry: '.$atom, LOGGER_DEBUG);
 288
 289                                 logger('notifier: '.$atom, LOGGER_DATA);
 290                                 $basepath =  implode('/', array_slice(explode('/',$contact['url']),0,3));
 291
 292                                 // perform local delivery if we are on the same site
 293
 294                                 if (link_compare($basepath,System::baseUrl())) {
 295
 296                                         $nickname = basename($contact['url']);
 297                                         if ($contact['issued-id']) {
 298                                                 $sql_extra = sprintf(" AND `dfrn-id` = '%s' ", dbesc($contact['issued-id']));
 299                                         } else {
 300                                                 $sql_extra = sprintf(" AND `issued-id` = '%s' ", dbesc($contact['dfrn-id']));
 301                                         }
 302
 303                                         $x = q("SELECT  `contact`.*, `contact`.`uid` AS `importer_uid`,
 304                                                 `contact`.`pubkey` AS `cpubkey`,
 305                                                 `contact`.`prvkey` AS `cprvkey`,
 306                                                 `contact`.`thumb` AS `thumb`,
 307                                                 `contact`.`url` as `url`,
 308                                                 `contact`.`name` as `senderName`,
 309                                                 `user`.*
 310                                                 FROM `contact`
 311                                                 INNER JOIN `user` ON `contact`.`uid` = `user`.`uid`
 312                                                 WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0
 313                                                 AND `contact`.`network` = '%s' AND `user`.`nickname` = '%s'
 314                                                 $sql_extra
 315                                                 AND `user`.`account_expired` = 0 AND `user`.`account_removed` = 0 LIMIT 1",
 316                                                 dbesc(NETWORK_DFRN),
 317                                                 dbesc($nickname)
 318                                         );
 319
 320                                         if ($x && count($x)) {
 321                                                 $write_flag = ((($x[0]['rel']) && ($x[0]['rel'] != CONTACT_IS_SHARING)) ? true : false);
 322                                                 if ((($owner['page-flags'] == PAGE_COMMUNITY) || $write_flag) && !$x[0]['writable']) {
 323                                                         q("UPDATE `contact` SET `writable` = 1 WHERE `id` = %d",
 324                                                                 intval($x[0]['id'])
 325                                                         );
 326                                                         $x[0]['writable'] = 1;
 327                                                 }
 328
 329                                                 $ssl_policy = Config::get('system','ssl_policy');
 330                                                 fix_contact_ssl_policy($x[0],$ssl_policy);
 331
 332                                                 // If we are setup as a soapbox we aren't accepting top level posts from this person
 333
 334                                                 if (($x[0]['page-flags'] == PAGE_SOAPBOX) && $top_level) {
 335                                                         break;
 336                                                 }
 337                                                 logger('mod-delivery: local delivery');
 338                                                 DFRN::import($atom, $x[0]);
 339                                                 break;
 340                                         }
 341                                 }
 342
 343                                 if (!was_recently_delayed($contact['id'])) {
 344                                         $deliver_status = DFRN::deliver($owner,$contact,$atom);
 345                                 } else {
 346                                         $deliver_status = (-1);
 347                                 }
 348
 349                                 logger('notifier: dfrn_delivery to '.$contact["url"].' with guid '.$target_item["guid"].' returns '.$deliver_status);
 350
 351                                 if ($deliver_status < 0) {
 352                                         logger('notifier: delivery failed: queuing message');
 353                                         add_to_queue($contact['id'],NETWORK_DFRN,$atom);
 354
 355                                         // The message could not be delivered. We mark the contact as "dead"
 356                                         mark_for_death($contact);
 357                                 } else {
 358                                         // We successfully delivered a message, the contact is alive
 359                                         unmark_for_death($contact);
 360                                 }
 361
 362                                 break;
 363
 364                         case NETWORK_OSTATUS:
 365                                 // Do not send to otatus if we are not configured to send to public networks
 366                                 if ($owner['prvnets']) {
 367                                         break;
 368                                 }
 369                                 if (Config::get('system','ostatus_disabled') || Config::get('system','dfrn_only')) {
 370                                         break;
 371                                 }
 372
 373                                 // There is currently no code here to distribute anything to OStatus.
 374                                 // This is done in "notifier.php" (See "url_recipients" and "push_notify")
 375                                 break;
 376
 377                         case NETWORK_MAIL:
 378                         case NETWORK_MAIL2:
 379
 380                                 if (Config::get('system','dfrn_only')) {
 381                                         break;
 382                                 }
 383                                 // WARNING: does not currently convert to RFC2047 header encodings, etc.
 384
 385                                 $addr = $contact['addr'];
 386                                 if (!strlen($addr)) {
 387                                         break;
 388                                 }
 389
 390                                 if ($cmd === 'wall-new' || $cmd === 'comment-new') {
 391
 392                                         $it = null;
 393                                         if ($cmd === 'wall-new') {
 394                                                 $it = $items[0];
 395                                         } else {
 396                                                 $r = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
 397                                                         intval($item_id),
 398                                                         intval($uid)
 399                                                 );
 400                                                 if (DBM::is_result($r))
 401                                                         $it = $r[0];
 402                                         }
 403                                         if (!$it)
 404                                                 break;
 405
 406
 407                                         $local_user = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
 408                                                 intval($uid)
 409                                         );
 410                                         if (!count($local_user))
 411                                                 break;
 412
 413                                         $reply_to = '';
 414                                         $r1 = q("SELECT * FROM `mailacct` WHERE `uid` = %d LIMIT 1",
 415                                                 intval($uid)
 416                                         );
 417                                         if ($r1 && $r1[0]['reply_to'])
 418                                                 $reply_to = $r1[0]['reply_to'];
 419
 420                                         $subject  = (($it['title']) ? email_header_encode($it['title'],'UTF-8') : t("\x28no subject\x29")) ;
 421
 422                                         // only expose our real email address to true friends
 423
 424                                         if (($contact['rel'] == CONTACT_IS_FRIEND) && !$contact['blocked']) {
 425                                                 if ($reply_to) {
 426                                                         $headers  = 'From: '.email_header_encode($local_user[0]['username'],'UTF-8').' <'.$reply_to.'>'."\n";
 427                                                         $headers .= 'Sender: '.$local_user[0]['email']."\n";
 428                                                 } else {
 429                                                         $headers  = 'From: '.email_header_encode($local_user[0]['username'],'UTF-8').' <'.$local_user[0]['email'].'>'."\n";
 430                                                 }
 431                                         } else {
 432                                                 $headers  = 'From: '. email_header_encode($local_user[0]['username'],'UTF-8') .' <'. t('noreply') .'@'.$a->get_hostname() .'>'. "\n";
 433                                         }
 434
 435                                         //if ($reply_to)
 436                                         //      $headers .= 'Reply-to: '.$reply_to . "\n";
 437
 438                                         $headers .= 'Message-Id: <'. iri2msgid($it['uri']).'>'. "\n";
 439
 440                                         //logger("Mail: uri: ".$it['uri']." parent-uri ".$it['parent-uri'], LOGGER_DEBUG);
 441                                         //logger("Mail: Data: ".print_r($it, true), LOGGER_DEBUG);
 442                                         //logger("Mail: Data: ".print_r($it, true), LOGGER_DATA);
 443
 444                                         if ($it['uri'] !== $it['parent-uri']) {
 445                                                 $headers .= "References: <".iri2msgid($it["parent-uri"]).">";
 446
 447                                                 // If Threading is enabled, write down the correct parent
 448                                                 if (($it["thr-parent"] != "") && ($it["thr-parent"] != $it["parent-uri"]))
 449                                                         $headers .= " <".iri2msgid($it["thr-parent"]).">";
 450                                                 $headers .= "\n";
 451
 452                                                 if (!$it['title']) {
 453                                                         $r = q("SELECT `title` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 454                                                                 dbesc($it['parent-uri']),
 455                                                                 intval($uid));
 456
 457                                                         if (DBM::is_result($r) && ($r[0]['title'] != '')) {
 458                                                                 $subject = $r[0]['title'];
 459                                                         } else {
 460                                                                 $r = q("SELECT `title` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d LIMIT 1",
 461                                                                         dbesc($it['parent-uri']),
 462                                                                         intval($uid));
 463
 464                                                                 if (DBM::is_result($r) && ($r[0]['title'] != ''))
 465                                                                         $subject = $r[0]['title'];
 466                                                         }
 467                                                 }
 468                                                 if (strncasecmp($subject,'RE:',3))
 469                                                         $subject = 'Re: '.$subject;
 470                                         }
 471                                         email_send($addr, $subject, $headers, $it);
 472                                 }
 473                                 break;
 474
 475                         case NETWORK_DIASPORA:
 476                                 if ($public_message)
 477                                         $loc = 'public batch '.$contact['batch'];
 478                                 else
 479                                         $loc = $contact['name'];
 480
 481                                 logger('delivery: diaspora batch deliver: '.$loc);
 482
 483                                 if (Config::get('system','dfrn_only') || !Config::get('system','diaspora_enabled'))
 484                                         break;
 485
 486                                 if ($mail) {
 487                                         Diaspora::send_mail($item,$owner,$contact);
 488                                         break;
 489                                 }
 490
 491                                 if (!$normal_mode)
 492                                         break;
 493
 494                                 if (!$contact['pubkey'] && !$public_message)
 495                                         break;
 496
 497                                 if (($target_item['deleted']) && (($target_item['uri'] === $target_item['parent-uri']) || $followup)) {
 498                                         // top-level retraction
 499                                         logger('diaspora retract: '.$loc);
 500                                         Diaspora::send_retraction($target_item,$owner,$contact,$public_message);
 501                                         break;
 502                                 } elseif ($relocate) {
 503                                         Diaspora::sendAccountMigration($owner, $contact, $uid);
 504                                         break;
 505                                 } elseif ($followup) {
 506                                         // send comments and likes to owner to relay
 507                                         logger('diaspora followup: '.$loc);
 508                                         Diaspora::send_followup($target_item,$owner,$contact,$public_message);
 509                                         break;
 510                                 } elseif ($target_item['uri'] !== $target_item['parent-uri']) {
 511                                         // we are the relay - send comments, likes and relayable_retractions to our conversants
 512                                         logger('diaspora relay: '.$loc);
 513                                         Diaspora::send_relay($target_item,$owner,$contact,$public_message);
 514                                         break;
 515                                 } elseif ($top_level && !$walltowall) {
 516                                         // currently no workable solution for sending walltowall
 517                                         logger('diaspora status: '.$loc);
 518                                         Diaspora::send_status($target_item,$owner,$contact,$public_message);
 519                                         break;
 520                                 }
 521
 522                                 logger('delivery: diaspora unknown mode: '.$contact['name']);
 523
 524                                 break;
 525
 526                         default:
 527                                 break;
 528                 }
 529
 530                 return;
 531         }
 532 }