src/Worker/Delivery.php

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