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