src/Worker/Delivery.php

   1 <?php
   2 /**
   3  * @file src/Worker/Delivery.php
   4  */
   5 namespace Friendica\Worker;
   6
   7 use Friendica\BaseObject;
   8 use Friendica\Core\Config;
   9 use Friendica\Core\L10n;
  10 use Friendica\Core\Logger;
  11 use Friendica\Core\Protocol;
  12 use Friendica\Core\System;
  13 use Friendica\Database\DBA;
  14 use Friendica\Model;
  15 use Friendica\Protocol\DFRN;
  16 use Friendica\Protocol\Diaspora;
  17 use Friendica\Protocol\Email;
  18 use Friendica\Util\Strings;
  19 use Friendica\Util\Network;
  20 use Friendica\Core\Worker;
  21
  22 class Delivery extends BaseObject
  23 {
  24         const MAIL          = 'mail';
  25         const SUGGESTION    = 'suggest';
  26         const RELOCATION    = 'relocate';
  27         const DELETION      = 'drop';
  28         const POST          = 'wall-new';
  29         const COMMENT       = 'comment-new';
  30         const REMOVAL       = 'removeme';
  31         const PROFILEUPDATE = 'profileupdate';
  32
  33         public static function execute($cmd, $target_id, $contact_id)
  34         {
  35                 Logger::log('Invoked: ' . $cmd . ': ' . $target_id . ' to ' . $contact_id, Logger::DEBUG);
  36
  37                 $top_level = false;
  38                 $followup = false;
  39                 $public_message = false;
  40
  41                 $items = [];
  42                 if ($cmd == self::MAIL) {
  43                         $target_item = DBA::selectFirst('mail', [], ['id' => $target_id]);
  44                         if (!DBA::isResult($target_item)) {
  45                                 return;
  46                         }
  47                         $uid = $target_item['uid'];
  48                 } elseif ($cmd == self::SUGGESTION) {
  49                         $target_item = DBA::selectFirst('fsuggest', [], ['id' => $target_id]);
  50                         if (!DBA::isResult($target_item)) {
  51                                 return;
  52                         }
  53                         $uid = $target_item['uid'];
  54                 } elseif ($cmd == self::RELOCATION) {
  55                         $uid = $target_id;
  56                         $target_item = [];
  57                 } else {
  58                         $item = Model\Item::selectFirst(['parent'], ['id' => $target_id]);
  59                         if (!DBA::isResult($item) || empty($item['parent'])) {
  60                                 return;
  61                         }
  62                         $parent_id = intval($item['parent']);
  63
  64                         $condition = ['id' => [$target_id, $parent_id], 'visible' => true, 'moderated' => false];
  65                         $params = ['order' => ['id']];
  66                         $itemdata = Model\Item::select([], $condition, $params);
  67
  68                         while ($item = Model\Item::fetch($itemdata)) {
  69                                 if ($item['id'] == $parent_id) {
  70                                         $parent = $item;
  71                                 }
  72                                 if ($item['id'] == $target_id) {
  73                                         $target_item = $item;
  74                                 }
  75                                 $items[] = $item;
  76                         }
  77                         DBA::close($itemdata);
  78
  79                         if (empty($target_item)) {
  80                                 Logger::log('Item ' . $target_id . "wasn't found. Quitting here.");
  81                                 return;
  82                         }
  83
  84                         if (empty($parent)) {
  85                                 Logger::log('Parent ' . $parent_id . ' for item ' . $target_id . "wasn't found. Quitting here.");
  86                                 return;
  87                         }
  88
  89                         if (!empty($target_item['contact-uid'])) {
  90                                 $uid = $target_item['contact-uid'];
  91                         } elseif (!empty($target_item['uid'])) {
  92                                 $uid = $target_item['uid'];
  93                         } else {
  94                                 Logger::log('Only public users for item ' . $target_id, Logger::DEBUG);
  95                                 return;
  96                         }
  97
  98                         // avoid race condition with deleting entries
  99                         if ($items[0]['deleted']) {
 100                                 foreach ($items as $item) {
 101                                         $item['deleted'] = 1;
 102                                 }
 103                         }
 104
 105                         // When commenting too fast after delivery, a post wasn't recognized as top level post.
 106                         // The count then showed more than one entry. The additional check should help.
 107                         // The check for the "count" should be superfluous, but I'm not totally sure by now, so we keep it.
 108                         if ((($parent['id'] == $target_id) || (count($items) == 1)) && ($parent['uri'] === $parent['parent-uri'])) {
 109                                 Logger::log('Top level post');
 110                                 $top_level = true;
 111                         }
 112
 113                         // This is IMPORTANT!!!!
 114
 115                         // We will only send a "notify owner to relay" or followup message if the referenced post
 116                         // originated on our system by virtue of having our hostname somewhere
 117                         // in the URI, AND it was a comment (not top_level) AND the parent originated elsewhere.
 118                         // if $parent['wall'] == 1 we will already have the parent message in our array
 119                         // and we will relay the whole lot.
 120
 121                         $localhost = self::getApp()->getHostName();
 122                         if (strpos($localhost, ':')) {
 123                                 $localhost = substr($localhost, 0, strpos($localhost, ':'));
 124                         }
 125                         /**
 126                          *
 127                          * Be VERY CAREFUL if you make any changes to the following line. Seemingly innocuous changes
 128                          * have been known to cause runaway conditions which affected several servers, along with
 129                          * permissions issues.
 130                          *
 131                          */
 132
 133                         if (!$top_level && ($parent['wall'] == 0) && stristr($target_item['uri'], $localhost)) {
 134                                 Logger::log('Followup ' . $target_item["guid"], Logger::DEBUG);
 135                                 // local followup to remote post
 136                                 $followup = true;
 137                         }
 138
 139                         if (empty($parent['allow_cid'])
 140                                 && empty($parent['allow_gid'])
 141                                 && empty($parent['deny_cid'])
 142                                 && empty($parent['deny_gid'])
 143                                 && !$parent["private"]) {
 144                                 $public_message = true;
 145                         }
 146                 }
 147
 148                 if (empty($items)) {
 149                         Logger::log('No delivery data for  ' . $cmd . ' - Item ID: ' .$target_id . ' - Contact ID: ' . $contact_id);
 150                 }
 151
 152                 $owner = Model\User::getOwnerDataById($uid);
 153                 if (!DBA::isResult($owner)) {
 154                         return;
 155                 }
 156
 157                 // We don't deliver our items to blocked or pending contacts, and not to ourselves either
 158                 $contact = DBA::selectFirst('contact', [],
 159                         ['id' => $contact_id, 'blocked' => false, 'pending' => false, 'self' => false]
 160                 );
 161                 if (!DBA::isResult($contact)) {
 162                         return;
 163                 }
 164
 165                 if (Network::isUrlBlocked($contact['url'])) {
 166                         return;
 167                 }
 168
 169                 // Transmit via Diaspora if the thread had started as Diaspora post
 170                 // This is done since the uri wouldn't match (Diaspora doesn't transmit it)
 171                 if (isset($parent) && ($parent['network'] == Protocol::DIASPORA) && ($contact['network'] == Protocol::DFRN)) {
 172                         $contact['network'] = Protocol::DIASPORA;
 173                 }
 174
 175                 Logger::log("Delivering " . $cmd . " followup=$followup - via network " . $contact['network']);
 176
 177                 switch ($contact['network']) {
 178
 179                         case Protocol::DFRN:
 180                                 self::deliverDFRN($cmd, $contact, $owner, $items, $target_item, $public_message, $top_level, $followup);
 181                                 break;
 182
 183                         case Protocol::DIASPORA:
 184                                 self::deliverDiaspora($cmd, $contact, $owner, $items, $target_item, $public_message, $top_level, $followup);
 185                                 break;
 186
 187                         case Protocol::OSTATUS:
 188                                 // Do not send to otatus if we are not configured to send to public networks
 189                                 if ($owner['prvnets']) {
 190                                         break;
 191                                 }
 192                                 if (Config::get('system','ostatus_disabled') || Config::get('system','dfrn_only')) {
 193                                         break;
 194                                 }
 195
 196                                 // There is currently no code here to distribute anything to OStatus.
 197                                 // This is done in "notifier.php" (See "url_recipients" and "push_notify")
 198                                 break;
 199
 200                         case Protocol::MAIL:
 201                                 self::deliverMail($cmd, $contact, $owner, $target_item);
 202                                 break;
 203
 204                         default:
 205                                 break;
 206                 }
 207
 208                 return;
 209         }
 210
 211         /**
 212          * @brief Deliver content via DFRN
 213          *
 214          * @param string  $cmd            Command
 215          * @param array   $contact        Contact record of the receiver
 216          * @param array   $owner          Owner record of the sender
 217          * @param array   $items          Item record of the content and the parent
 218          * @param array   $target_item    Item record of the content
 219          * @param boolean $public_message Is the content public?
 220          * @param boolean $top_level      Is it a thread starter?
 221          * @param boolean $followup       Is it an answer to a remote post?
 222          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 223          * @throws \ImagickException
 224          */
 225         private static function deliverDFRN($cmd, $contact, $owner, $items, $target_item, $public_message, $top_level, $followup)
 226         {
 227                 Logger::log('Deliver ' . defaults($target_item, 'guid', $target_item['id']) . ' via DFRN to ' . (empty($contact['addr']) ? $contact['url'] : $contact['addr']));
 228
 229                 if ($cmd == self::MAIL) {
 230                         $item = $target_item;
 231                         $item['body'] = Model\Item::fixPrivatePhotos($item['body'], $owner['uid'], null, $item['contact-id']);
 232                         $atom = DFRN::mail($item, $owner);
 233                 } elseif ($cmd == self::SUGGESTION) {
 234                         $item = $target_item;
 235                         $atom = DFRN::fsuggest($item, $owner);
 236                         DBA::delete('fsuggest', ['id' => $item['id']]);
 237                 } elseif ($cmd == self::RELOCATION) {
 238                         $atom = DFRN::relocate($owner, $owner['uid']);
 239                 } elseif ($followup) {
 240                         $msgitems = [$target_item];
 241                         $atom = DFRN::entries($msgitems, $owner);
 242                 } else {
 243                         $msgitems = [];
 244                         foreach ($items as $item) {
 245                                 // Only add the parent when we don't delete other items.
 246                                 if (($target_item['id'] == $item['id']) || ($cmd != self::DELETION)) {
 247                                         $item["entry:comment-allow"] = true;
 248                                         $item["entry:cid"] = ($top_level ? $contact['id'] : 0);
 249                                         $msgitems[] = $item;
 250                                 }
 251                         }
 252                         $atom = DFRN::entries($msgitems, $owner);
 253                 }
 254
 255                 Logger::log('Notifier entry: ' . $contact["url"] . ' ' . defaults($target_item, 'guid', $target_item['id']) . ' entry: ' . $atom, Logger::DATA);
 256
 257                 $basepath =  implode('/', array_slice(explode('/', $contact['url']), 0, 3));
 258
 259                 // perform local delivery if we are on the same site
 260
 261                 if (Strings::compareLink($basepath, System::baseUrl())) {
 262                         $condition = ['nurl' => Strings::normaliseLink($contact['url']), 'self' => true];
 263                         $target_self = DBA::selectFirst('contact', ['uid'], $condition);
 264                         if (!DBA::isResult($target_self)) {
 265                                 return;
 266                         }
 267                         $target_uid = $target_self['uid'];
 268
 269                         // Check if the user has got this contact
 270                         $cid = Model\Contact::getIdForURL($owner['url'], $target_uid);
 271                         if (!$cid) {
 272                                 // Otherwise there should be a public contact
 273                                 $cid = Model\Contact::getIdForURL($owner['url']);
 274                                 if (!$cid) {
 275                                         return;
 276                                 }
 277                         }
 278
 279                         $target_importer = DFRN::getImporter($cid, $target_uid);
 280                         if (empty($target_importer)) {
 281                                 // This should never happen
 282                                 return;
 283                         }
 284
 285                         DFRN::import($atom, $target_importer);
 286                         return;
 287                 }
 288
 289                 // We don't have a relationship with contacts on a public post.
 290                 // Se we transmit with the new method and via Diaspora as a fallback
 291                 if (!empty($items) && (($items[0]['uid'] == 0) || ($contact['uid'] == 0))) {
 292                         // Transmit in public if it's a relay post
 293                         $public_dfrn = ($contact['contact-type'] == Model\Contact::TYPE_RELAY);
 294
 295                         $deliver_status = DFRN::transmit($owner, $contact, $atom, $public_dfrn);
 296
 297                         // We never spool failed relay deliveries
 298                         if ($public_dfrn) {
 299                                 Logger::log('Relay delivery to ' . $contact["url"] . ' with guid ' . $target_item["guid"] . ' returns ' . $deliver_status);
 300                                 return;
 301                         }
 302
 303                         if (($deliver_status < 200) || ($deliver_status > 299)) {
 304                                 // Transmit via Diaspora if not possible via Friendica
 305                                 self::deliverDiaspora($cmd, $contact, $owner, $items, $target_item, $public_message, $top_level, $followup);
 306                                 return;
 307                         }
 308                 } elseif ($cmd != self::RELOCATION) {
 309                         $deliver_status = DFRN::deliver($owner, $contact, $atom);
 310                 } else {
 311                         $deliver_status = DFRN::deliver($owner, $contact, $atom, false, true);
 312                 }
 313
 314                 Logger::info('DFRN Delivery', ['cmd' => $cmd, 'url' => $contact['url'], 'guid' => defaults($target_item, 'guid', $target_item['id']), 'return' => $deliver_status]);
 315
 316                 if (($deliver_status >= 200) && ($deliver_status <= 299)) {
 317                         // We successfully delivered a message, the contact is alive
 318                         Model\Contact::unmarkForArchival($contact);
 319
 320                         if (in_array($cmd, [Delivery::POST, Delivery::COMMENT])) {
 321                                 Model\ItemDeliveryData::incrementQueueDone($target_item['id']);
 322                         }
 323                 } else {
 324                         // The message could not be delivered. We mark the contact as "dead"
 325                         Model\Contact::markForArchival($contact);
 326
 327                         Logger::info('Delivery failed: defer message', ['id' => defaults($target_item, 'guid', $target_item['id'])]);
 328                         Worker::defer();
 329                 }
 330         }
 331
 332         /**
 333          * @brief Deliver content via Diaspora
 334          *
 335          * @param string  $cmd            Command
 336          * @param array   $contact        Contact record of the receiver
 337          * @param array   $owner          Owner record of the sender
 338          * @param array   $items          Item record of the content and the parent
 339          * @param array   $target_item    Item record of the content
 340          * @param boolean $public_message Is the content public?
 341          * @param boolean $top_level      Is it a thread starter?
 342          * @param boolean $followup       Is it an answer to a remote post?
 343          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 344          * @throws \ImagickException
 345          */
 346         private static function deliverDiaspora($cmd, $contact, $owner, $items, $target_item, $public_message, $top_level, $followup)
 347         {
 348                 // We don't treat Forum posts as "wall-to-wall" to be able to post them via Diaspora
 349                 $walltowall = $top_level && ($owner['id'] != $items[0]['contact-id']) & ($owner['account-type'] != Model\User::ACCOUNT_TYPE_COMMUNITY);
 350
 351                 if ($public_message) {
 352                         $loc = 'public batch ' . $contact['batch'];
 353                 } else {
 354                         $loc = $contact['addr'];
 355                 }
 356
 357                 Logger::log('Deliver ' . defaults($target_item, 'guid', $target_item['id']) . ' via Diaspora to ' . $loc);
 358
 359                 if (Config::get('system', 'dfrn_only') || !Config::get('system', 'diaspora_enabled')) {
 360                         return;
 361                 }
 362                 if ($cmd == self::MAIL) {
 363                         Diaspora::sendMail($target_item, $owner, $contact);
 364                         return;
 365                 }
 366
 367                 if ($cmd == self::SUGGESTION) {
 368                         return;
 369                 }
 370                 if (!$contact['pubkey'] && !$public_message) {
 371                         return;
 372                 }
 373
 374                 if ($cmd == self::RELOCATION) {
 375                         $deliver_status = Diaspora::sendAccountMigration($owner, $contact, $owner['uid']);
 376                 } elseif ($target_item['deleted'] && (($target_item['uri'] === $target_item['parent-uri']) || $followup)) {
 377                         // top-level retraction
 378                         Logger::log('diaspora retract: ' . $loc);
 379                         $deliver_status = Diaspora::sendRetraction($target_item, $owner, $contact, $public_message);
 380                 } elseif ($followup) {
 381                         // send comments and likes to owner to relay
 382                         Logger::log('diaspora followup: ' . $loc);
 383                         $deliver_status = Diaspora::sendFollowup($target_item, $owner, $contact, $public_message);
 384                 } elseif ($target_item['uri'] !== $target_item['parent-uri']) {
 385                         // we are the relay - send comments, likes and relayable_retractions to our conversants
 386                         Logger::log('diaspora relay: ' . $loc);
 387                         $deliver_status = Diaspora::sendRelay($target_item, $owner, $contact, $public_message);
 388                 } elseif ($top_level && !$walltowall) {
 389                         // currently no workable solution for sending walltowall
 390                         Logger::log('diaspora status: ' . $loc);
 391                         $deliver_status = Diaspora::sendStatus($target_item, $owner, $contact, $public_message);
 392                 } else {
 393                         Logger::log('Unknown mode ' . $cmd . ' for ' . $loc);
 394                         return;
 395                 }
 396
 397                 if (($deliver_status >= 200) && ($deliver_status <= 299)) {
 398                         // We successfully delivered a message, the contact is alive
 399                         Model\Contact::unmarkForArchival($contact);
 400
 401                         if (in_array($cmd, [Delivery::POST, Delivery::COMMENT])) {
 402                                 Model\ItemDeliveryData::incrementQueueDone($target_item['id']);
 403                         }
 404                 } else {
 405                         // The message could not be delivered. We mark the contact as "dead"
 406                         Model\Contact::markForArchival($contact);
 407
 408                         if (empty($contact['contact-type']) || ($contact['contact-type'] != Model\Contact::TYPE_RELAY)) {
 409                                 Logger::info('Delivery failed: defer message', ['id' => defaults($target_item, 'guid', $target_item['id'])]);
 410                                 // defer message for redelivery
 411                                 Worker::defer();
 412                         } elseif (in_array($cmd, [Delivery::POST, Delivery::COMMENT])) {
 413                                 Model\ItemDeliveryData::incrementQueueDone($target_item['id']);
 414                         }
 415                 }
 416         }
 417
 418         /**
 419          * @brief Deliver content via mail
 420          *
 421          * @param string $cmd         Command
 422          * @param array  $contact     Contact record of the receiver
 423          * @param array  $owner       Owner record of the sender
 424          * @param array  $target_item Item record of the content
 425          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 426          * @throws \ImagickException
 427          */
 428         private static function deliverMail($cmd, $contact, $owner, $target_item)
 429         {
 430                 if (Config::get('system','dfrn_only')) {
 431                         return;
 432                 }
 433                 // WARNING: does not currently convert to RFC2047 header encodings, etc.
 434
 435                 $addr = $contact['addr'];
 436                 if (!strlen($addr)) {
 437                         return;
 438                 }
 439
 440                 if (!in_array($cmd, [self::POST, self::COMMENT])) {
 441                         return;
 442                 }
 443
 444                 $local_user = DBA::selectFirst('user', [], ['uid' => $owner['uid']]);
 445                 if (!DBA::isResult($local_user)) {
 446                         return;
 447                 }
 448
 449                 Logger::log('Deliver ' . $target_item["guid"] . ' via mail to ' . $contact['addr']);
 450
 451                 $reply_to = '';
 452                 $mailacct = DBA::selectFirst('mailacct', ['reply_to'], ['uid' => $owner['uid']]);
 453                 if (DBA::isResult($mailacct) && !empty($mailacct['reply_to'])) {
 454                         $reply_to = $mailacct['reply_to'];
 455                 }
 456
 457                 $subject  = ($target_item['title'] ? Email::encodeHeader($target_item['title'], 'UTF-8') : L10n::t("\x28no subject\x29"));
 458
 459                 // only expose our real email address to true friends
 460
 461                 if (($contact['rel'] == Model\Contact::FRIEND) && !$contact['blocked']) {
 462                         if ($reply_to) {
 463                                 $headers  = 'From: ' . Email::encodeHeader($local_user['username'],'UTF-8') . ' <' . $reply_to.'>' . "\n";
 464                                 $headers .= 'Sender: ' . $local_user['email'] . "\n";
 465                         } else {
 466                                 $headers  = 'From: ' . Email::encodeHeader($local_user['username'],'UTF-8').' <' . $local_user['email'] . '>' . "\n";
 467                         }
 468                 } else {
 469                         $headers  = 'From: '. Email::encodeHeader($local_user['username'], 'UTF-8') . ' <noreply@' . self::getApp()->getHostName() . '>' . "\n";
 470                 }
 471
 472                 $headers .= 'Message-Id: <' . Email::iri2msgid($target_item['uri']) . '>' . "\n";
 473
 474                 if ($target_item['uri'] !== $target_item['parent-uri']) {
 475                         $headers .= "References: <" . Email::iri2msgid($target_item["parent-uri"]) . ">";
 476
 477                         // If Threading is enabled, write down the correct parent
 478                         if (($target_item["thr-parent"] != "") && ($target_item["thr-parent"] != $target_item["parent-uri"])) {
 479                                 $headers .= " <".Email::iri2msgid($target_item["thr-parent"]).">";
 480                         }
 481
 482                         $headers .= "\n";
 483
 484                         if (empty($target_item['title'])) {
 485                                 $condition = ['uri' => $target_item['parent-uri'], 'uid' => $owner['uid']];
 486                                 $title = Model\Item::selectFirst(['title'], $condition);
 487
 488                                 if (DBA::isResult($title) && ($title['title'] != '')) {
 489                                         $subject = $title['title'];
 490                                 } else {
 491                                         $condition = ['parent-uri' => $target_item['parent-uri'], 'uid' => $owner['uid']];
 492                                         $title = Model\Item::selectFirst(['title'], $condition);
 493
 494                                         if (DBA::isResult($title) && ($title['title'] != '')) {
 495                                                 $subject = $title['title'];
 496                                         }
 497                                 }
 498                         }
 499
 500                         if (strncasecmp($subject, 'RE:', 3)) {
 501                                 $subject = 'Re: ' . $subject;
 502                         }
 503                 }
 504
 505                 Email::send($addr, $subject, $headers, $target_item);
 506         }
 507 }