src/Worker/Delivery.php

   1 <?php
   2 /**
   3  * @file src/Worker/Delivery.php
   4  */
   5 namespace Friendica\Worker;
   6
   7 use Friendica\Core\Config;
   8 use Friendica\Core\L10n;
   9 use Friendica\Core\System;
  10 use Friendica\Database\DBM;
  11 use Friendica\Model\Contact;
  12 use Friendica\Model\Item;
  13 use Friendica\Model\Queue;
  14 use Friendica\Model\User;
  15 use Friendica\Protocol\DFRN;
  16 use Friendica\Protocol\Diaspora;
  17 use Friendica\Protocol\Email;
  18 use dba;
  19
  20 require_once 'include/html2plain.php';
  21 require_once 'include/items.php';
  22
  23 /// @todo This is some ugly code that needs to be split into several methods
  24
  25 class Delivery {
  26         public static function execute($cmd, $item_id, $contact_id) {
  27                 global $a;
  28
  29                 logger('delivery: invoked: '.$cmd.': '.$item_id.' to '.$contact_id, LOGGER_DEBUG);
  30
  31                 $mail = false;
  32                 $fsuggest = false;
  33                 $relocate = false;
  34                 $top_level = false;
  35                 $recipients = [];
  36                 $followup = false;
  37
  38                 $normal_mode = true;
  39
  40                 $item = null;
  41
  42                 $recipients[] = $contact_id;
  43
  44                 if ($cmd === 'mail') {
  45                         $normal_mode = false;
  46                         $mail = true;
  47                         $message = q("SELECT * FROM `mail` WHERE `id` = %d LIMIT 1",
  48                                         intval($item_id)
  49                         );
  50                         if (!count($message)) {
  51                                 return;
  52                         }
  53                         $uid = $message[0]['uid'];
  54                         $recipients[] = $message[0]['contact-id'];
  55                         $item = $message[0];
  56                 } elseif ($cmd === 'suggest') {
  57                         $normal_mode = false;
  58                         $fsuggest = true;
  59
  60                         $suggest = q("SELECT * FROM `fsuggest` WHERE `id` = %d LIMIT 1",
  61                                 intval($item_id)
  62                         );
  63                         if (!count($suggest)) {
  64                                 return;
  65                         }
  66                         $uid = $suggest[0]['uid'];
  67                         $recipients[] = $suggest[0]['cid'];
  68                         $item = $suggest[0];
  69                 } elseif ($cmd === 'relocate') {
  70                         $normal_mode = false;
  71                         $relocate = true;
  72                         $uid = $item_id;
  73                 } else {
  74                         // find ancestors
  75                         $target_item = dba::fetch_first("SELECT `item`.*, `contact`.`uid` AS `cuid` FROM `item`
  76                                                         INNER JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
  77                                                         WHERE `item`.`id` = ? AND `visible` AND NOT `moderated`", $item_id);
  78
  79                         if (!DBM::is_result($target_item) || !intval($target_item['parent'])) {
  80                                 return;
  81                         }
  82
  83                         $parent_id = intval($target_item['parent']);
  84                         $uid = $target_item['cuid'];
  85                         $updated = $target_item['edited'];
  86
  87                         $items = q("SELECT `item`.*, `sign`.`signed_text`,`sign`.`signature`,`sign`.`signer`
  88                                 FROM `item` LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id` WHERE `parent` = %d AND visible = 1 AND moderated = 0 ORDER BY `id` ASC",
  89                                 intval($parent_id)
  90                         );
  91
  92                         if (!count($items)) {
  93                                 return;
  94                         }
  95
  96                         $icontacts = null;
  97                         $contacts_arr = [];
  98                         foreach ($items as $item) {
  99                                 if (!in_array($item['contact-id'],$contacts_arr)) {
 100                                         $contacts_arr[] = intval($item['contact-id']);
 101                                 }
 102                         }
 103                         if (count($contacts_arr)) {
 104                                 $str_contacts = implode(',',$contacts_arr);
 105                                 $icontacts = q("SELECT * FROM `contact`
 106                                         WHERE `id` IN ( $str_contacts ) "
 107                                 );
 108                         }
 109                         if ( !($icontacts && count($icontacts))) {
 110                                 return;
 111                         }
 112
 113                         // avoid race condition with deleting entries
 114
 115                         if ($items[0]['deleted']) {
 116                                 foreach ($items as $item) {
 117                                         $item['deleted'] = 1;
 118                                 }
 119                         }
 120
 121                         // When commenting too fast after delivery, a post wasn't recognized as top level post.
 122                         // The count then showed more than one entry. The additional check should help.
 123                         // The check for the "count" should be superfluous, but I'm not totally sure by now, so we keep it.
 124                         if ((($items[0]['id'] == $item_id) || (count($items) == 1)) && ($items[0]['uri'] === $items[0]['parent-uri'])) {
 125                                 logger('delivery: top level post');
 126                                 $top_level = true;
 127                         }
 128                 }
 129
 130                 $owner = User::getOwnerDataById($uid);
 131                 if (!$owner) {
 132                         return;
 133                 }
 134
 135                 // We don't treat Forum posts as "wall-to-wall" to be able to post them via Diaspora
 136                 $walltowall = $top_level && ($owner['id'] != $items[0]['contact-id']) & ($owner['account-type'] != ACCOUNT_TYPE_COMMUNITY);
 137
 138                 $public_message = true;
 139
 140                 if (!$mail && !$fsuggest && !$relocate) {
 141                         $parent = $items[0];
 142
 143                         // This is IMPORTANT!!!!
 144
 145                         // We will only send a "notify owner to relay" or followup message if the referenced post
 146                         // originated on our system by virtue of having our hostname somewhere
 147                         // in the URI, AND it was a comment (not top_level) AND the parent originated elsewhere.
 148                         // if $parent['wall'] == 1 we will already have the parent message in our array
 149                         // and we will relay the whole lot.
 150
 151                         $localhost = $a->get_hostname();
 152                         if (strpos($localhost,':')) {
 153                                 $localhost = substr($localhost,0,strpos($localhost,':'));
 154                         }
 155                         /**
 156                          *
 157                          * Be VERY CAREFUL if you make any changes to the following line. Seemingly innocuous changes
 158                          * have been known to cause runaway conditions which affected several servers, along with
 159                          * permissions issues.
 160                          *
 161                          */
 162
 163                         $relay_to_owner = false;
 164
 165                         if (!$top_level && ($parent['wall'] == 0) && stristr($target_item['uri'], $localhost)) {
 166                                 $relay_to_owner = true;
 167                         }
 168
 169                         if ($relay_to_owner) {
 170                                 logger('followup '.$target_item["guid"], LOGGER_DEBUG);
 171                                 // local followup to remote post
 172                                 $followup = true;
 173                         }
 174
 175                         if (strlen($parent['allow_cid'])
 176                                 || strlen($parent['allow_gid'])
 177                                 || strlen($parent['deny_cid'])
 178                                 || strlen($parent['deny_gid'])
 179                                 || $parent["private"]) {
 180                                 $public_message = false; // private recipients, not public
 181                         }
 182
 183                 }
 184
 185                 // We don't deliver our items to blocked or pending contacts, and not to ourselves either
 186                 $contact = dba::selectFirst('contact', [],
 187                         ['id' => $contact_id, 'blocked' => false, 'pending' => false, 'self' => false]
 188                 );
 189                 if (!DBM::is_result($contact)) {
 190                         return;
 191                 }
 192
 193                 $deliver_status = 0;
 194
 195                 // Transmit via Diaspora if not possible via Friendica
 196                 if (($item['uid'] == 0) && ($contact['network'] == NETWORK_DFRN)) {
 197                         $contact['network'] = NETWORK_DIASPORA;
 198                 }
 199
 200                 logger("main delivery by delivery: followup=$followup mail=$mail fsuggest=$fsuggest relocate=$relocate - network ".$contact['network']);
 201
 202                 switch ($contact['network']) {
 203
 204                         case NETWORK_DFRN:
 205                                 logger('notifier: '.$target_item["guid"].' dfrndelivery: '.$contact['name']);
 206
 207                                 if ($mail) {
 208                                         $item['body'] = Item::fixPrivatePhotos($item['body'], $owner['uid'], null, $item['contact-id']);
 209                                         $atom = DFRN::mail($item, $owner);
 210                                 } elseif ($fsuggest) {
 211                                         $atom = DFRN::fsuggest($item, $owner);
 212                                         q("DELETE FROM `fsuggest` WHERE `id` = %d LIMIT 1", intval($item['id']));
 213                                 } elseif ($relocate) {
 214                                         $atom = DFRN::relocate($owner, $uid);
 215                                 } elseif ($followup) {
 216                                         $msgitems = [];
 217                                         foreach ($items as $item) {  // there is only one item
 218                                                 if (!$item['parent']) {
 219                                                         return;
 220                                                 }
 221                                                 if ($item['id'] == $item_id) {
 222                                                         logger('followup: item: '. print_r($item,true), LOGGER_DATA);
 223                                                         $msgitems[] = $item;
 224                                                 }
 225                                         }
 226                                         $atom = DFRN::entries($msgitems,$owner);
 227                                 } else {
 228                                         $msgitems = [];
 229                                         foreach ($items as $item) {
 230                                                 if (!$item['parent']) {
 231                                                         return;
 232                                                 }
 233
 234                                                 // private emails may be in included in public conversations. Filter them.
 235                                                 if ($public_message && $item['private']) {
 236                                                         return;
 237                                                 }
 238
 239                                                 $item_contact = self::getItemContact($item,$icontacts);
 240                                                 if (!$item_contact) {
 241                                                         return;
 242                                                 }
 243
 244                                                 if ($normal_mode) {
 245                                                         // Only add the parent when we don't delete other items.
 246                                                         if ($item_id == $item['id'] || (($item['id'] == $item['parent']) && ($cmd != 'drop'))) {
 247                                                                 $item["entry:comment-allow"] = true;
 248                                                                 $item["entry:cid"] = (($top_level) ? $contact['id'] : 0);
 249                                                                 $msgitems[] = $item;
 250                                                         }
 251                                                 } else {
 252                                                         $item["entry:comment-allow"] = true;
 253                                                         $msgitems[] = $item;
 254                                                 }
 255                                         }
 256                                         $atom = DFRN::entries($msgitems,$owner);
 257                                 }
 258
 259                                 logger('notifier entry: '.$contact["url"].' '.$target_item["guid"].' entry: '.$atom, LOGGER_DEBUG);
 260
 261                                 logger('notifier: '.$atom, LOGGER_DATA);
 262                                 $basepath =  implode('/', array_slice(explode('/',$contact['url']),0,3));
 263
 264                                 // perform local delivery if we are on the same site
 265
 266                                 if (link_compare($basepath,System::baseUrl())) {
 267                                         $nickname = basename($contact['url']);
 268                                         if ($contact['issued-id']) {
 269                                                 $sql_extra = sprintf(" AND `dfrn-id` = '%s' ", dbesc($contact['issued-id']));
 270                                         } else {
 271                                                 $sql_extra = sprintf(" AND `issued-id` = '%s' ", dbesc($contact['dfrn-id']));
 272                                         }
 273
 274                                         $x = q("SELECT  `contact`.*, `contact`.`uid` AS `importer_uid`,
 275                                                 `contact`.`pubkey` AS `cpubkey`,
 276                                                 `contact`.`prvkey` AS `cprvkey`,
 277                                                 `contact`.`thumb` AS `thumb`,
 278                                                 `contact`.`url` as `url`,
 279                                                 `contact`.`name` as `senderName`,
 280                                                 `user`.*
 281                                                 FROM `contact`
 282                                                 INNER JOIN `user` ON `contact`.`uid` = `user`.`uid`
 283                                                 WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0
 284                                                 AND `contact`.`network` = '%s' AND `user`.`nickname` = '%s'
 285                                                 $sql_extra
 286                                                 AND `user`.`account_expired` = 0 AND `user`.`account_removed` = 0 LIMIT 1",
 287                                                 dbesc(NETWORK_DFRN),
 288                                                 dbesc($nickname)
 289                                         );
 290
 291                                         if ($x && count($x)) {
 292                                                 $write_flag = ((($x[0]['rel']) && ($x[0]['rel'] != CONTACT_IS_SHARING)) ? true : false);
 293                                                 if ((($owner['page-flags'] == PAGE_COMMUNITY) || $write_flag) && !$x[0]['writable']) {
 294                                                         q("UPDATE `contact` SET `writable` = 1 WHERE `id` = %d",
 295                                                                 intval($x[0]['id'])
 296                                                         );
 297                                                         $x[0]['writable'] = 1;
 298                                                 }
 299
 300                                                 $ssl_policy = Config::get('system','ssl_policy');
 301                                                 $x[0] = Contact::updateSslPolicy($x[0], $ssl_policy);
 302
 303                                                 // If we are setup as a soapbox we aren't accepting top level posts from this person
 304
 305                                                 if (($x[0]['page-flags'] == PAGE_SOAPBOX) && $top_level) {
 306                                                         break;
 307                                                 }
 308                                                 logger('mod-delivery: local delivery');
 309                                                 DFRN::import($atom, $x[0]);
 310                                                 break;
 311                                         }
 312                                 }
 313
 314                                 if (!Queue::wasDelayed($contact['id'])) {
 315                                         $deliver_status = DFRN::deliver($owner, $contact, $atom);
 316                                 } else {
 317                                         $deliver_status = (-1);
 318                                 }
 319
 320                                 logger('notifier: dfrn_delivery to '.$contact["url"].' with guid '.$target_item["guid"].' returns '.$deliver_status);
 321
 322                                 if ($deliver_status < 0) {
 323                                         logger('notifier: delivery failed: queuing message');
 324                                         Queue::add($contact['id'], NETWORK_DFRN, $atom, false, $target_item['guid']);
 325
 326                                         // The message could not be delivered. We mark the contact as "dead"
 327                                         Contact::markForArchival($contact);
 328                                 } else {
 329                                         // We successfully delivered a message, the contact is alive
 330                                         Contact::unmarkForArchival($contact);
 331                                 }
 332
 333                                 break;
 334
 335                         case NETWORK_OSTATUS:
 336                                 // Do not send to otatus if we are not configured to send to public networks
 337                                 if ($owner['prvnets']) {
 338                                         break;
 339                                 }
 340                                 if (Config::get('system','ostatus_disabled') || Config::get('system','dfrn_only')) {
 341                                         break;
 342                                 }
 343
 344                                 // There is currently no code here to distribute anything to OStatus.
 345                                 // This is done in "notifier.php" (See "url_recipients" and "push_notify")
 346                                 break;
 347
 348                         case NETWORK_MAIL:
 349
 350                                 if (Config::get('system','dfrn_only')) {
 351                                         break;
 352                                 }
 353                                 // WARNING: does not currently convert to RFC2047 header encodings, etc.
 354
 355                                 $addr = $contact['addr'];
 356                                 if (!strlen($addr)) {
 357                                         break;
 358                                 }
 359
 360                                 if ($cmd === 'wall-new' || $cmd === 'comment-new') {
 361                                         $it = null;
 362                                         if ($cmd === 'wall-new') {
 363                                                 $it = $items[0];
 364                                         } else {
 365                                                 $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
 366                                                         intval($item_id)
 367                                                 );
 368                                                 if (DBM::is_result($r)) {
 369                                                         $it = $r[0];
 370                                                 }
 371                                         }
 372                                         if (!$it) {
 373                                                 break;
 374                                         }
 375
 376                                         $local_user = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
 377                                                 intval($uid)
 378                                         );
 379                                         if (!count($local_user)) {
 380                                                 break;
 381                                         }
 382
 383                                         $reply_to = '';
 384                                         $r1 = q("SELECT * FROM `mailacct` WHERE `uid` = %d LIMIT 1",
 385                                                 intval($uid)
 386                                         );
 387                                         if ($r1 && $r1[0]['reply_to']) {
 388                                                 $reply_to = $r1[0]['reply_to'];
 389                                         }
 390
 391                                         $subject  = (($it['title']) ? Email::encodeHeader($it['title'],'UTF-8') : L10n::t("\x28no subject\x29")) ;
 392
 393                                         // only expose our real email address to true friends
 394
 395                                         if (($contact['rel'] == CONTACT_IS_FRIEND) && !$contact['blocked']) {
 396                                                 if ($reply_to) {
 397                                                         $headers  = 'From: '.Email::encodeHeader($local_user[0]['username'],'UTF-8').' <'.$reply_to.'>'."\n";
 398                                                         $headers .= 'Sender: '.$local_user[0]['email']."\n";
 399                                                 } else {
 400                                                         $headers  = 'From: '.Email::encodeHeader($local_user[0]['username'],'UTF-8').' <'.$local_user[0]['email'].'>'."\n";
 401                                                 }
 402                                         } else {
 403                                                 $headers  = 'From: '. Email::encodeHeader($local_user[0]['username'],'UTF-8') .' <'. L10n::t('noreply') .'@'.$a->get_hostname() .'>'. "\n";
 404                                         }
 405
 406                                         //if ($reply_to)
 407                                         //      $headers .= 'Reply-to: '.$reply_to . "\n";
 408
 409                                         $headers .= 'Message-Id: <'. Email::iri2msgid($it['uri']).'>'. "\n";
 410
 411                                         //logger("Mail: uri: ".$it['uri']." parent-uri ".$it['parent-uri'], LOGGER_DEBUG);
 412                                         //logger("Mail: Data: ".print_r($it, true), LOGGER_DEBUG);
 413                                         //logger("Mail: Data: ".print_r($it, true), LOGGER_DATA);
 414
 415                                         if ($it['uri'] !== $it['parent-uri']) {
 416                                                 $headers .= "References: <".Email::iri2msgid($it["parent-uri"]).">";
 417
 418                                                 // If Threading is enabled, write down the correct parent
 419                                                 if (($it["thr-parent"] != "") && ($it["thr-parent"] != $it["parent-uri"])) {
 420                                                         $headers .= " <".Email::iri2msgid($it["thr-parent"]).">";
 421                                                 }
 422                                                 $headers .= "\n";
 423
 424                                                 if (!$it['title']) {
 425                                                         $r = q("SELECT `title` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 426                                                                 dbesc($it['parent-uri']),
 427                                                                 intval($uid));
 428
 429                                                         if (DBM::is_result($r) && ($r[0]['title'] != '')) {
 430                                                                 $subject = $r[0]['title'];
 431                                                         } else {
 432                                                                 $r = q("SELECT `title` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d LIMIT 1",
 433                                                                         dbesc($it['parent-uri']),
 434                                                                         intval($uid));
 435
 436                                                                 if (DBM::is_result($r) && ($r[0]['title'] != '')) {
 437                                                                         $subject = $r[0]['title'];
 438                                                                 }
 439                                                         }
 440                                                 }
 441                                                 if (strncasecmp($subject,'RE:',3)) {
 442                                                         $subject = 'Re: '.$subject;
 443                                                 }
 444                                         }
 445                                         Email::send($addr, $subject, $headers, $it);
 446                                 }
 447                                 break;
 448
 449                         case NETWORK_DIASPORA:
 450                                 if ($public_message) {
 451                                         $loc = 'public batch '.$contact['batch'];
 452                                 } else {
 453                                         $loc = $contact['name'];
 454                                 }
 455
 456                                 logger('delivery: diaspora batch deliver: '.$loc);
 457
 458                                 if (Config::get('system','dfrn_only') || !Config::get('system','diaspora_enabled')) {
 459                                         break;
 460                                 }
 461                                 if ($mail) {
 462                                         Diaspora::sendMail($item,$owner,$contact);
 463                                         break;
 464                                 }
 465
 466                                 if (!$normal_mode) {
 467                                         break;
 468                                 }
 469                                 if (!$contact['pubkey'] && !$public_message) {
 470                                         break;
 471                                 }
 472                                 if (($target_item['deleted']) && (($target_item['uri'] === $target_item['parent-uri']) || $followup)) {
 473                                         // top-level retraction
 474                                         logger('diaspora retract: '.$loc);
 475                                         Diaspora::sendRetraction($target_item,$owner,$contact,$public_message);
 476                                         break;
 477                                 } elseif ($relocate) {
 478                                         Diaspora::sendAccountMigration($owner, $contact, $uid);
 479                                         break;
 480                                 } elseif ($followup) {
 481                                         // send comments and likes to owner to relay
 482                                         logger('diaspora followup: '.$loc);
 483                                         Diaspora::sendFollowup($target_item,$owner,$contact,$public_message);
 484                                         break;
 485                                 } elseif ($target_item['uri'] !== $target_item['parent-uri']) {
 486                                         // we are the relay - send comments, likes and relayable_retractions to our conversants
 487                                         logger('diaspora relay: '.$loc);
 488                                         Diaspora::sendRelay($target_item,$owner,$contact,$public_message);
 489                                         break;
 490                                 } elseif ($top_level && !$walltowall) {
 491                                         // currently no workable solution for sending walltowall
 492                                         logger('diaspora status: '.$loc);
 493                                         Diaspora::sendStatus($target_item,$owner,$contact,$public_message);
 494                                         break;
 495                                 }
 496
 497                                 logger('delivery: diaspora unknown mode: '.$contact['name']);
 498
 499                                 break;
 500
 501                         default:
 502                                 break;
 503                 }
 504
 505                 return;
 506         }
 507
 508         private static function getItemContact($item, $contacts)
 509         {
 510                 if (!count($contacts) || !is_array($item)) {
 511                         return false;
 512                 }
 513                 foreach ($contacts as $contact) {
 514                         if ($contact['id'] == $item['contact-id']) {
 515                                 return $contact;
 516                         }
 517                 }
 518                 return false;
 519         }
 520 }