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\Core\L10n;
  11 use Friendica\Database\DBM;
  12 use Friendica\Model\Contact;
  13 use Friendica\Model\Queue;
  14 use Friendica\Model\User;
  15 use Friendica\Protocol\Diaspora;
  16 use Friendica\Protocol\DFRN;
  17 use Friendica\Protocol\Email;
  18 use Friendica\Util\Network;
  19 use dba;
  20
  21 require_once 'include/html2plain.php';
  22 require_once 'include/datetime.php';
  23 require_once 'include/items.php';
  24 require_once 'include/bbcode.php';
  25
  26 /// @todo This is some ugly code that needs to be split into several methods
  27
  28 class Delivery {
  29         public static function execute($cmd, $item_id, $contact_id) {
  30                 global $a;
  31
  32                 logger('delivery: invoked: '.$cmd.': '.$item_id.' to '.$contact_id, LOGGER_DEBUG);
  33
  34                 $mail = false;
  35                 $fsuggest = false;
  36                 $relocate = false;
  37                 $top_level = false;
  38                 $recipients = [];
  39                 $url_recipients = [];
  40                 $followup = false;
  41
  42                 $normal_mode = true;
  43
  44                 $recipients[] = $contact_id;
  45
  46                 if ($cmd === 'mail') {
  47                         $normal_mode = false;
  48                         $mail = true;
  49                         $message = q("SELECT * FROM `mail` WHERE `id` = %d LIMIT 1",
  50                                         intval($item_id)
  51                         );
  52                         if (!count($message)) {
  53                                 return;
  54                         }
  55                         $uid = $message[0]['uid'];
  56                         $recipients[] = $message[0]['contact-id'];
  57                         $item = $message[0];
  58                 } elseif ($cmd === 'suggest') {
  59                         $normal_mode = false;
  60                         $fsuggest = true;
  61
  62                         $suggest = q("SELECT * FROM `fsuggest` WHERE `id` = %d LIMIT 1",
  63                                 intval($item_id)
  64                         );
  65                         if (!count($suggest)) {
  66                                 return;
  67                         }
  68                         $uid = $suggest[0]['uid'];
  69                         $recipients[] = $suggest[0]['cid'];
  70                         $item = $suggest[0];
  71                 } elseif ($cmd === 'relocate') {
  72                         $normal_mode = false;
  73                         $relocate = true;
  74                         $uid = $item_id;
  75                 } else {
  76                         // find ancestors
  77                         $target_item = dba::fetch_first("SELECT `item`.*, `contact`.`uid` AS `cuid` FROM `item`
  78                                                         INNER JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
  79                                                         WHERE `item`.`id` = ? AND `visible` AND NOT `moderated`", $item_id);
  80
  81                         if (!DBM::is_result($target_item) || !intval($target_item['parent'])) {
  82                                 return;
  83                         }
  84
  85                         $parent_id = intval($target_item['parent']);
  86                         $uid = $target_item['cuid'];
  87                         $updated = $target_item['edited'];
  88
  89                         $items = q("SELECT `item`.*, `sign`.`signed_text`,`sign`.`signature`,`sign`.`signer`
  90                                 FROM `item` LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id` WHERE `parent` = %d AND visible = 1 AND moderated = 0 ORDER BY `id` ASC",
  91                                 intval($parent_id)
  92                         );
  93
  94                         if (!count($items)) {
  95                                 return;
  96                         }
  97
  98                         $icontacts = null;
  99                         $contacts_arr = [];
 100                         foreach ($items as $item) {
 101                                 if (!in_array($item['contact-id'],$contacts_arr)) {
 102                                         $contacts_arr[] = intval($item['contact-id']);
 103                                 }
 104                         }
 105                         if (count($contacts_arr)) {
 106                                 $str_contacts = implode(',',$contacts_arr);
 107                                 $icontacts = q("SELECT * FROM `contact`
 108                                         WHERE `id` IN ( $str_contacts ) "
 109                                 );
 110                         }
 111                         if ( !($icontacts && count($icontacts))) {
 112                                 return;
 113                         }
 114
 115                         // avoid race condition with deleting entries
 116
 117                         if ($items[0]['deleted']) {
 118                                 foreach ($items as $item) {
 119                                         $item['deleted'] = 1;
 120                                 }
 121                         }
 122
 123                         // When commenting too fast after delivery, a post wasn't recognized as top level post.
 124                         // The count then showed more than one entry. The additional check should help.
 125                         // The check for the "count" should be superfluous, but I'm not totally sure by now, so we keep it.
 126                         if ((($items[0]['id'] == $item_id) || (count($items) == 1)) && ($items[0]['uri'] === $items[0]['parent-uri'])) {
 127                                 logger('delivery: top level post');
 128                                 $top_level = true;
 129                         }
 130                 }
 131
 132                 $owner = User::getOwnerDataById($uid);
 133                 if (!$owner) {
 134                         return;
 135                 }
 136
 137                 $walltowall = (($top_level && ($owner['id'] != $items[0]['contact-id'])) ? true : false);
 138
 139                 $public_message = true;
 140
 141                 if (!$mail && !$fsuggest && !$relocate) {
 142                         $parent = $items[0];
 143
 144                         // This is IMPORTANT!!!!
 145
 146                         // We will only send a "notify owner to relay" or followup message if the referenced post
 147                         // originated on our system by virtue of having our hostname somewhere
 148                         // in the URI, AND it was a comment (not top_level) AND the parent originated elsewhere.
 149                         // if $parent['wall'] == 1 we will already have the parent message in our array
 150                         // and we will relay the whole lot.
 151
 152                         $localhost = $a->get_hostname();
 153                         if (strpos($localhost,':')) {
 154                                 $localhost = substr($localhost,0,strpos($localhost,':'));
 155                         }
 156                         /**
 157                          *
 158                          * Be VERY CAREFUL if you make any changes to the following line. Seemingly innocuous changes
 159                          * have been known to cause runaway conditions which affected several servers, along with
 160                          * permissions issues.
 161                          *
 162                          */
 163
 164                         $relay_to_owner = false;
 165
 166                         if (!$top_level && ($parent['wall'] == 0) && stristr($target_item['uri'], $localhost)) {
 167                                 $relay_to_owner = true;
 168                         }
 169
 170                         if ($relay_to_owner) {
 171                                 logger('followup '.$target_item["guid"], LOGGER_DEBUG);
 172                                 // local followup to remote post
 173                                 $followup = true;
 174                         }
 175
 176                         if (strlen($parent['allow_cid'])
 177                                 || strlen($parent['allow_gid'])
 178                                 || strlen($parent['deny_cid'])
 179                                 || strlen($parent['deny_gid'])
 180                                 || $parent["private"]) {
 181                                 $public_message = false; // private recipients, not public
 182                         }
 183
 184                 }
 185
 186                 $r = q("SELECT * FROM `contact` WHERE `id` = %d AND `blocked` = 0 AND `pending` = 0",
 187                         intval($contact_id)
 188                 );
 189
 190                 if (DBM::is_result($r)) {
 191                         $contact = $r[0];
 192                 }
 193                 if ($contact['self']) {
 194                         return;
 195                 }
 196                 $deliver_status = 0;
 197
 198                 // Transmit via Diaspora if not possible via Friendica
 199                 if (($item['uid'] == 0) && ($contact['network'] == NETWORK_DFRN)) {
 200                         $contact['network'] = NETWORK_DIASPORA;
 201                 }
 202
 203                 logger("main delivery by delivery: followup=$followup mail=$mail fsuggest=$fsuggest relocate=$relocate - network ".$contact['network']);
 204
 205                 switch ($contact['network']) {
 206
 207                         case NETWORK_DFRN:
 208                                 logger('notifier: '.$target_item["guid"].' dfrndelivery: '.$contact['name']);
 209
 210                                 if ($mail) {
 211                                         $item['body'] = fix_private_photos($item['body'],$owner['uid'],null,$message[0]['contact-id']);
 212                                         $atom = DFRN::mail($item, $owner);
 213                                 } elseif ($fsuggest) {
 214                                         $atom = DFRN::fsuggest($item, $owner);
 215                                         q("DELETE FROM `fsuggest` WHERE `id` = %d LIMIT 1", intval($item['id']));
 216                                 } elseif ($relocate) {
 217                                         $atom = DFRN::relocate($owner, $uid);
 218                                 } elseif ($followup) {
 219                                         $msgitems = [];
 220                                         foreach ($items as $item) {  // there is only one item
 221                                                 if (!$item['parent']) {
 222                                                         return;
 223                                                 }
 224                                                 if ($item['id'] == $item_id) {
 225                                                         logger('followup: item: '. print_r($item,true), LOGGER_DATA);
 226                                                         $msgitems[] = $item;
 227                                                 }
 228                                         }
 229                                         $atom = DFRN::entries($msgitems,$owner);
 230                                 } else {
 231                                         $msgitems = [];
 232                                         foreach ($items as $item) {
 233                                                 if (!$item['parent']) {
 234                                                         return;
 235                                                 }
 236
 237                                                 // private emails may be in included in public conversations. Filter them.
 238                                                 if ($public_message && $item['private']) {
 239                                                         return;
 240                                                 }
 241
 242                                                 $item_contact = self::getItemContact($item,$icontacts);
 243                                                 if (!$item_contact) {
 244                                                         return;
 245                                                 }
 246
 247                                                 if ($normal_mode) {
 248                                                         if ($item_id == $item['id'] || $item['id'] == $item['parent']) {
 249                                                                 $item["entry:comment-allow"] = true;
 250                                                                 $item["entry:cid"] = (($top_level) ? $contact['id'] : 0);
 251                                                                 $msgitems[] = $item;
 252                                                         }
 253                                                 } else {
 254                                                         $item["entry:comment-allow"] = true;
 255                                                         $msgitems[] = $item;
 256                                                 }
 257                                         }
 258                                         $atom = DFRN::entries($msgitems,$owner);
 259                                 }
 260
 261                                 logger('notifier entry: '.$contact["url"].' '.$target_item["guid"].' entry: '.$atom, LOGGER_DEBUG);
 262
 263                                 logger('notifier: '.$atom, LOGGER_DATA);
 264                                 $basepath =  implode('/', array_slice(explode('/',$contact['url']),0,3));
 265
 266                                 // perform local delivery if we are on the same site
 267
 268                                 if (link_compare($basepath,System::baseUrl())) {
 269                                         $nickname = basename($contact['url']);
 270                                         if ($contact['issued-id']) {
 271                                                 $sql_extra = sprintf(" AND `dfrn-id` = '%s' ", dbesc($contact['issued-id']));
 272                                         } else {
 273                                                 $sql_extra = sprintf(" AND `issued-id` = '%s' ", dbesc($contact['dfrn-id']));
 274                                         }
 275
 276                                         $x = q("SELECT  `contact`.*, `contact`.`uid` AS `importer_uid`,
 277                                                 `contact`.`pubkey` AS `cpubkey`,
 278                                                 `contact`.`prvkey` AS `cprvkey`,
 279                                                 `contact`.`thumb` AS `thumb`,
 280                                                 `contact`.`url` as `url`,
 281                                                 `contact`.`name` as `senderName`,
 282                                                 `user`.*
 283                                                 FROM `contact`
 284                                                 INNER JOIN `user` ON `contact`.`uid` = `user`.`uid`
 285                                                 WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0
 286                                                 AND `contact`.`network` = '%s' AND `user`.`nickname` = '%s'
 287                                                 $sql_extra
 288                                                 AND `user`.`account_expired` = 0 AND `user`.`account_removed` = 0 LIMIT 1",
 289                                                 dbesc(NETWORK_DFRN),
 290                                                 dbesc($nickname)
 291                                         );
 292
 293                                         if ($x && count($x)) {
 294                                                 $write_flag = ((($x[0]['rel']) && ($x[0]['rel'] != CONTACT_IS_SHARING)) ? true : false);
 295                                                 if ((($owner['page-flags'] == PAGE_COMMUNITY) || $write_flag) && !$x[0]['writable']) {
 296                                                         q("UPDATE `contact` SET `writable` = 1 WHERE `id` = %d",
 297                                                                 intval($x[0]['id'])
 298                                                         );
 299                                                         $x[0]['writable'] = 1;
 300                                                 }
 301
 302                                                 $ssl_policy = Config::get('system','ssl_policy');
 303                                                 Network::fixContactSslPolicy($x[0], $ssl_policy);
 304
 305                                                 // If we are setup as a soapbox we aren't accepting top level posts from this person
 306
 307                                                 if (($x[0]['page-flags'] == PAGE_SOAPBOX) && $top_level) {
 308                                                         break;
 309                                                 }
 310                                                 logger('mod-delivery: local delivery');
 311                                                 DFRN::import($atom, $x[0]);
 312                                                 break;
 313                                         }
 314                                 }
 315
 316                                 if (!Queue::wasDelayed($contact['id'])) {
 317                                         $deliver_status = DFRN::deliver($owner, $contact, $atom);
 318                                 } else {
 319                                         $deliver_status = (-1);
 320                                 }
 321
 322                                 logger('notifier: dfrn_delivery to '.$contact["url"].' with guid '.$target_item["guid"].' returns '.$deliver_status);
 323
 324                                 if ($deliver_status < 0) {
 325                                         logger('notifier: delivery failed: queuing message');
 326                                         Queue::add($contact['id'], NETWORK_DFRN, $atom);
 327
 328                                         // The message could not be delivered. We mark the contact as "dead"
 329                                         Contact::markForArchival($contact);
 330                                 } else {
 331                                         // We successfully delivered a message, the contact is alive
 332                                         Contact::unmarkForArchival($contact);
 333                                 }
 334
 335                                 break;
 336
 337                         case NETWORK_OSTATUS:
 338                                 // Do not send to otatus if we are not configured to send to public networks
 339                                 if ($owner['prvnets']) {
 340                                         break;
 341                                 }
 342                                 if (Config::get('system','ostatus_disabled') || Config::get('system','dfrn_only')) {
 343                                         break;
 344                                 }
 345
 346                                 // There is currently no code here to distribute anything to OStatus.
 347                                 // This is done in "notifier.php" (See "url_recipients" and "push_notify")
 348                                 break;
 349
 350                         case NETWORK_MAIL:
 351
 352                                 if (Config::get('system','dfrn_only')) {
 353                                         break;
 354                                 }
 355                                 // WARNING: does not currently convert to RFC2047 header encodings, etc.
 356
 357                                 $addr = $contact['addr'];
 358                                 if (!strlen($addr)) {
 359                                         break;
 360                                 }
 361
 362                                 if ($cmd === 'wall-new' || $cmd === 'comment-new') {
 363                                         $it = null;
 364                                         if ($cmd === 'wall-new') {
 365                                                 $it = $items[0];
 366                                         } else {
 367                                                 $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
 368                                                         intval($item_id)
 369                                                 );
 370                                                 if (DBM::is_result($r)) {
 371                                                         $it = $r[0];
 372                                                 }
 373                                         }
 374                                         if (!$it) {
 375                                                 break;
 376                                         }
 377
 378                                         $local_user = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
 379                                                 intval($uid)
 380                                         );
 381                                         if (!count($local_user)) {
 382                                                 break;
 383                                         }
 384
 385                                         $reply_to = '';
 386                                         $r1 = q("SELECT * FROM `mailacct` WHERE `uid` = %d LIMIT 1",
 387                                                 intval($uid)
 388                                         );
 389                                         if ($r1 && $r1[0]['reply_to']) {
 390                                                 $reply_to = $r1[0]['reply_to'];
 391                                         }
 392
 393                                         $subject  = (($it['title']) ? Email::encodeHeader($it['title'],'UTF-8') : L10n::t("\x28no subject\x29")) ;
 394
 395                                         // only expose our real email address to true friends
 396
 397                                         if (($contact['rel'] == CONTACT_IS_FRIEND) && !$contact['blocked']) {
 398                                                 if ($reply_to) {
 399                                                         $headers  = 'From: '.Email::encodeHeader($local_user[0]['username'],'UTF-8').' <'.$reply_to.'>'."\n";
 400                                                         $headers .= 'Sender: '.$local_user[0]['email']."\n";
 401                                                 } else {
 402                                                         $headers  = 'From: '.Email::encodeHeader($local_user[0]['username'],'UTF-8').' <'.$local_user[0]['email'].'>'."\n";
 403                                                 }
 404                                         } else {
 405                                                 $headers  = 'From: '. Email::encodeHeader($local_user[0]['username'],'UTF-8') .' <'. L10n::t('noreply') .'@'.$a->get_hostname() .'>'. "\n";
 406                                         }
 407
 408                                         //if ($reply_to)
 409                                         //      $headers .= 'Reply-to: '.$reply_to . "\n";
 410
 411                                         $headers .= 'Message-Id: <'. Email::iri2msgid($it['uri']).'>'. "\n";
 412
 413                                         //logger("Mail: uri: ".$it['uri']." parent-uri ".$it['parent-uri'], LOGGER_DEBUG);
 414                                         //logger("Mail: Data: ".print_r($it, true), LOGGER_DEBUG);
 415                                         //logger("Mail: Data: ".print_r($it, true), LOGGER_DATA);
 416
 417                                         if ($it['uri'] !== $it['parent-uri']) {
 418                                                 $headers .= "References: <".Email::iri2msgid($it["parent-uri"]).">";
 419
 420                                                 // If Threading is enabled, write down the correct parent
 421                                                 if (($it["thr-parent"] != "") && ($it["thr-parent"] != $it["parent-uri"])) {
 422                                                         $headers .= " <".Email::iri2msgid($it["thr-parent"]).">";
 423                                                 }
 424                                                 $headers .= "\n";
 425
 426                                                 if (!$it['title']) {
 427                                                         $r = q("SELECT `title` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 428                                                                 dbesc($it['parent-uri']),
 429                                                                 intval($uid));
 430
 431                                                         if (DBM::is_result($r) && ($r[0]['title'] != '')) {
 432                                                                 $subject = $r[0]['title'];
 433                                                         } else {
 434                                                                 $r = q("SELECT `title` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d LIMIT 1",
 435                                                                         dbesc($it['parent-uri']),
 436                                                                         intval($uid));
 437
 438                                                                 if (DBM::is_result($r) && ($r[0]['title'] != '')) {
 439                                                                         $subject = $r[0]['title'];
 440                                                                 }
 441                                                         }
 442                                                 }
 443                                                 if (strncasecmp($subject,'RE:',3)) {
 444                                                         $subject = 'Re: '.$subject;
 445                                                 }
 446                                         }
 447                                         Email::send($addr, $subject, $headers, $it);
 448                                 }
 449                                 break;
 450
 451                         case NETWORK_DIASPORA:
 452                                 if ($public_message) {
 453                                         $loc = 'public batch '.$contact['batch'];
 454                                 } else {
 455                                         $loc = $contact['name'];
 456                                 }
 457
 458                                 logger('delivery: diaspora batch deliver: '.$loc);
 459
 460                                 if (Config::get('system','dfrn_only') || !Config::get('system','diaspora_enabled')) {
 461                                         break;
 462                                 }
 463                                 if ($mail) {
 464                                         Diaspora::sendMail($item,$owner,$contact);
 465                                         break;
 466                                 }
 467
 468                                 if (!$normal_mode) {
 469                                         break;
 470                                 }
 471                                 if (!$contact['pubkey'] && !$public_message) {
 472                                         break;
 473                                 }
 474                                 if (($target_item['deleted']) && (($target_item['uri'] === $target_item['parent-uri']) || $followup)) {
 475                                         // top-level retraction
 476                                         logger('diaspora retract: '.$loc);
 477                                         Diaspora::sendRetraction($target_item,$owner,$contact,$public_message);
 478                                         break;
 479                                 } elseif ($relocate) {
 480                                         Diaspora::sendAccountMigration($owner, $contact, $uid);
 481                                         break;
 482                                 } elseif ($followup) {
 483                                         // send comments and likes to owner to relay
 484                                         logger('diaspora followup: '.$loc);
 485                                         Diaspora::sendFollowup($target_item,$owner,$contact,$public_message);
 486                                         break;
 487                                 } elseif ($target_item['uri'] !== $target_item['parent-uri']) {
 488                                         // we are the relay - send comments, likes and relayable_retractions to our conversants
 489                                         logger('diaspora relay: '.$loc);
 490                                         Diaspora::sendRelay($target_item,$owner,$contact,$public_message);
 491                                         break;
 492                                 } elseif ($top_level && !$walltowall) {
 493                                         // currently no workable solution for sending walltowall
 494                                         logger('diaspora status: '.$loc);
 495                                         Diaspora::sendStatus($target_item,$owner,$contact,$public_message);
 496                                         break;
 497                                 }
 498
 499                                 logger('delivery: diaspora unknown mode: '.$contact['name']);
 500
 501                                 break;
 502
 503                         default:
 504                                 break;
 505                 }
 506
 507                 return;
 508         }
 509
 510         private static function getItemContact($item, $contacts)
 511         {
 512                 if (!count($contacts) || !is_array($item)) {
 513                         return false;
 514                 }
 515                 foreach ($contacts as $contact) {
 516                         if ($contact['id'] == $item['contact-id']) {
 517                                 return $contact;
 518                         }
 519                 }
 520                 return false;
 521         }
 522 }