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 POKE          = 'poke';
  30         const UPLINK        = 'uplink';
  31         const REMOVAL       = 'removeme';
  32         const PROFILEUPDATE = 'profileupdate';
  33
  34         public static function execute($cmd, $target_id, $contact_id)
  35         {
  36                 Logger::log('Invoked: ' . $cmd . ': ' . $target_id . ' to ' . $contact_id, Logger::DEBUG);
  37
  38                 $top_level = false;
  39                 $followup = false;
  40                 $public_message = false;
  41
  42                 $items = [];
  43                 if ($cmd == self::MAIL) {
  44                         $target_item = DBA::selectFirst('mail', [], ['id' => $target_id]);
  45                         if (!DBA::isResult($target_item)) {
  46                                 return;
  47                         }
  48                         $uid = $target_item['uid'];
  49                 } elseif ($cmd == self::SUGGESTION) {
  50                         $target_item = DBA::selectFirst('fsuggest', [], ['id' => $target_id]);
  51                         if (!DBA::isResult($target_item)) {
  52                                 return;
  53                         }
  54                         $uid = $target_item['uid'];
  55                 } elseif ($cmd == self::RELOCATION) {
  56                         $uid = $target_id;
  57                         $target_item = [];
  58                 } else {
  59                         $item = Model\Item::selectFirst(['parent'], ['id' => $target_id]);
  60                         if (!DBA::isResult($item) || empty($item['parent'])) {
  61                                 return;
  62                         }
  63                         $parent_id = intval($item['parent']);
  64
  65                         $condition = ['id' => [$target_id, $parent_id], 'visible' => true, 'moderated' => false];
  66                         $params = ['order' => ['id']];
  67                         $itemdata = Model\Item::select([], $condition, $params);
  68
  69                         while ($item = Model\Item::fetch($itemdata)) {
  70                                 if ($item['id'] == $parent_id) {
  71                                         $parent = $item;
  72                                 }
  73                                 if ($item['id'] == $target_id) {
  74                                         $target_item = $item;
  75                                 }
  76                                 $items[] = $item;
  77                         }
  78                         DBA::close($itemdata);
  79
  80                         if (empty($target_item)) {
  81                                 Logger::log('Item ' . $target_id . "wasn't found. Quitting here.");
  82                                 return;
  83                         }
  84
  85                         if (empty($parent)) {
  86                                 Logger::log('Parent ' . $parent_id . ' for item ' . $target_id . "wasn't found. Quitting here.");
  87                                 return;
  88                         }
  89
  90                         if (!empty($target_item['contact-uid'])) {
  91                                 $uid = $target_item['contact-uid'];
  92                         } elseif (!empty($target_item['uid'])) {
  93                                 $uid = $target_item['uid'];
  94                         } else {
  95                                 Logger::log('Only public users for item ' . $target_id, Logger::DEBUG);
  96                                 return;
  97                         }
  98
  99                         // avoid race condition with deleting entries
 100                         if ($items[0]['deleted']) {
 101                                 foreach ($items as $item) {
 102                                         $item['deleted'] = 1;
 103                                 }
 104                         }
 105
 106                         // When commenting too fast after delivery, a post wasn't recognized as top level post.
 107                         // The count then showed more than one entry. The additional check should help.
 108                         // The check for the "count" should be superfluous, but I'm not totally sure by now, so we keep it.
 109                         if ((($parent['id'] == $target_id) || (count($items) == 1)) && ($parent['uri'] === $parent['parent-uri'])) {
 110                                 Logger::log('Top level post');
 111                                 $top_level = true;
 112                         }
 113
 114                         // This is IMPORTANT!!!!
 115
 116                         // We will only send a "notify owner to relay" or followup message if the referenced post
 117                         // originated on our system by virtue of having our hostname somewhere
 118                         // in the URI, AND it was a comment (not top_level) AND the parent originated elsewhere.
 119                         // if $parent['wall'] == 1 we will already have the parent message in our array
 120                         // and we will relay the whole lot.
 121
 122                         $localhost = self::getApp()->getHostName();
 123                         if (strpos($localhost, ':')) {
 124                                 $localhost = substr($localhost, 0, strpos($localhost, ':'));
 125                         }
 126                         /**
 127                          *
 128                          * Be VERY CAREFUL if you make any changes to the following line. Seemingly innocuous changes
 129                          * have been known to cause runaway conditions which affected several servers, along with
 130                          * permissions issues.
 131                          *
 132                          */
 133
 134                         if (!$top_level && ($parent['wall'] == 0) && stristr($target_item['uri'], $localhost)) {
 135                                 Logger::log('Followup ' . $target_item["guid"], Logger::DEBUG);
 136                                 // local followup to remote post
 137                                 $followup = true;
 138                         }
 139
 140                         if (empty($parent['allow_cid'])
 141                                 && empty($parent['allow_gid'])
 142                                 && empty($parent['deny_cid'])
 143                                 && empty($parent['deny_gid'])
 144                                 && !$parent["private"]) {
 145                                 $public_message = true;
 146                         }
 147                 }
 148
 149                 if (empty($items)) {
 150                         Logger::log('No delivery data for  ' . $cmd . ' - Item ID: ' .$target_id . ' - Contact ID: ' . $contact_id);
 151                 }
 152
 153                 $owner = Model\User::getOwnerDataById($uid);
 154                 if (!DBA::isResult($owner)) {
 155                         return;
 156                 }
 157
 158                 // We don't deliver our items to blocked or pending contacts, and not to ourselves either
 159                 $contact = DBA::selectFirst('contact', [],
 160                         ['id' => $contact_id, 'blocked' => false, 'pending' => false, 'self' => false]
 161                 );
 162                 if (!DBA::isResult($contact)) {
 163                         return;
 164                 }
 165
 166                 if (Network::isUrlBlocked($contact['url'])) {
 167                         return;
 168                 }
 169
 170                 // Transmit via Diaspora if the thread had started as Diaspora post
 171                 // This is done since the uri wouldn't match (Diaspora doesn't transmit it)
 172                 if (isset($parent) && ($parent['network'] == Protocol::DIASPORA) && ($contact['network'] == Protocol::DFRN)) {
 173                         $contact['network'] = Protocol::DIASPORA;
 174                 }
 175
 176                 Logger::log("Delivering " . $cmd . " followup=$followup - via network " . $contact['network']);
 177
 178                 switch ($contact['network']) {
 179
 180                         case Protocol::DFRN:
 181                                 self::deliverDFRN($cmd, $contact, $owner, $items, $target_item, $public_message, $top_level, $followup);
 182                                 break;
 183
 184                         case Protocol::DIASPORA:
 185                                 self::deliverDiaspora($cmd, $contact, $owner, $items, $target_item, $public_message, $top_level, $followup);
 186                                 break;
 187
 188                         case Protocol::OSTATUS:
 189                                 // Do not send to otatus if we are not configured to send to public networks
 190                                 if ($owner['prvnets']) {
 191                                         break;
 192                                 }
 193                                 if (Config::get('system','ostatus_disabled') || Config::get('system','dfrn_only')) {
 194                                         break;
 195                                 }
 196
 197                                 // There is currently no code here to distribute anything to OStatus.
 198                                 // This is done in "notifier.php" (See "url_recipients" and "push_notify")
 199                                 break;
 200
 201                         case Protocol::MAIL:
 202                                 self::deliverMail($cmd, $contact, $owner, $target_item);
 203                                 break;
 204
 205                         default:
 206                                 break;
 207                 }
 208
 209                 return;
 210         }
 211
 212         /**
 213          * @brief Deliver content via DFRN
 214          *
 215          * @param string  $cmd            Command
 216          * @param array   $contact        Contact record of the receiver
 217          * @param array   $owner          Owner record of the sender
 218          * @param array   $items          Item record of the content and the parent
 219          * @param array   $target_item    Item record of the content
 220          * @param boolean $public_message Is the content public?
 221          * @param boolean $top_level      Is it a thread starter?
 222          * @param boolean $followup       Is it an answer to a remote post?
 223          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 224          * @throws \ImagickException
 225          */
 226         private static function deliverDFRN($cmd, $contact, $owner, $items, $target_item, $public_message, $top_level, $followup)
 227         {
 228                 Logger::log('Deliver ' . defaults($target_item, 'guid', $target_item['id']) . ' via DFRN to ' . (empty($contact['addr']) ? $contact['url'] : $contact['addr']));
 229
 230                 if ($cmd == self::MAIL) {
 231                         $item = $target_item;
 232                         $item['body'] = Model\Item::fixPrivatePhotos($item['body'], $owner['uid'], null, $item['contact-id']);
 233                         $atom = DFRN::mail($item, $owner);
 234                 } elseif ($cmd == self::SUGGESTION) {
 235                         $item = $target_item;
 236                         $atom = DFRN::fsuggest($item, $owner);
 237                         DBA::delete('fsuggest', ['id' => $item['id']]);
 238                 } elseif ($cmd == self::RELOCATION) {
 239                         $atom = DFRN::relocate($owner, $owner['uid']);
 240                 } elseif ($followup) {
 241                         $msgitems = [$target_item];
 242                         $atom = DFRN::entries($msgitems, $owner);
 243                 } else {
 244                         $msgitems = [];
 245                         foreach ($items as $item) {
 246                                 // Only add the parent when we don't delete other items.
 247                                 if (($target_item['id'] == $item['id']) || ($cmd != self::DELETION)) {
 248                                         $item["entry:comment-allow"] = true;
 249                                         $item["entry:cid"] = ($top_level ? $contact['id'] : 0);
 250                                         $msgitems[] = $item;
 251                                 }
 252                         }
 253                         $atom = DFRN::entries($msgitems, $owner);
 254                 }
 255
 256                 Logger::log('Notifier entry: ' . $contact["url"] . ' ' . defaults($target_item, 'guid', $target_item['id']) . ' entry: ' . $atom, Logger::DATA);
 257
 258                 $basepath =  implode('/', array_slice(explode('/', $contact['url']), 0, 3));
 259
 260                 // perform local delivery if we are on the same site
 261
 262                 if (Strings::compareLink($basepath, System::baseUrl())) {
 263                         $condition = ['nurl' => Strings::normaliseLink($contact['url']), 'self' => true];
 264                         $target_self = DBA::selectFirst('contact', ['uid'], $condition);
 265                         if (!DBA::isResult($target_self)) {
 266                                 return;
 267                         }
 268                         $target_uid = $target_self['uid'];
 269
 270                         // Check if the user has got this contact
 271                         $cid = Model\Contact::getIdForURL($owner['url'], $target_uid);
 272                         if (!$cid) {
 273                                 // Otherwise there should be a public contact
 274                                 $cid = Model\Contact::getIdForURL($owner['url']);
 275                                 if (!$cid) {
 276                                         return;
 277                                 }
 278                         }
 279
 280                         $target_importer = DFRN::getImporter($cid, $target_uid);
 281                         if (empty($target_importer)) {
 282                                 // This should never happen
 283                                 return;
 284                         }
 285
 286                         DFRN::import($atom, $target_importer);
 287
 288                         if (in_array($cmd, [Delivery::POST, Delivery::POKE])) {
 289                                 Model\ItemDeliveryData::incrementQueueDone($target_item['id']);
 290                         }
 291
 292                         return;
 293                 }
 294
 295                 // We don't have a relationship with contacts on a public post.
 296                 // Se we transmit with the new method and via Diaspora as a fallback
 297                 if (!empty($items) && (($items[0]['uid'] == 0) || ($contact['uid'] == 0))) {
 298                         // Transmit in public if it's a relay post
 299                         $public_dfrn = ($contact['contact-type'] == Model\Contact::TYPE_RELAY);
 300
 301                         $deliver_status = DFRN::transmit($owner, $contact, $atom, $public_dfrn);
 302
 303                         // We never spool failed relay deliveries
 304                         if ($public_dfrn) {
 305                                 Logger::log('Relay delivery to ' . $contact["url"] . ' with guid ' . $target_item["guid"] . ' returns ' . $deliver_status);
 306                                 return;
 307                         }
 308
 309                         if (($deliver_status < 200) || ($deliver_status > 299)) {
 310                                 // Transmit via Diaspora if not possible via Friendica
 311                                 self::deliverDiaspora($cmd, $contact, $owner, $items, $target_item, $public_message, $top_level, $followup);
 312                                 return;
 313                         }
 314                 } elseif ($cmd != self::RELOCATION) {
 315                         $deliver_status = DFRN::deliver($owner, $contact, $atom);
 316                 } else {
 317                         $deliver_status = DFRN::deliver($owner, $contact, $atom, false, true);
 318                 }
 319
 320                 Logger::info('DFRN Delivery', ['cmd' => $cmd, 'url' => $contact['url'], 'guid' => defaults($target_item, 'guid', $target_item['id']), 'return' => $deliver_status]);
 321
 322                 if (($deliver_status >= 200) && ($deliver_status <= 299)) {
 323                         // We successfully delivered a message, the contact is alive
 324                         Model\Contact::unmarkForArchival($contact);
 325
 326                         if (in_array($cmd, [Delivery::POST, Delivery::POKE])) {
 327                                 Model\ItemDeliveryData::incrementQueueDone($target_item['id']);
 328                         }
 329                 } else {
 330                         // The message could not be delivered. We mark the contact as "dead"
 331                         Model\Contact::markForArchival($contact);
 332
 333                         Logger::info('Delivery failed: defer message', ['id' => defaults($target_item, 'guid', $target_item['id'])]);
 334                         Worker::defer();
 335                 }
 336         }
 337
 338         /**
 339          * @brief Deliver content via Diaspora
 340          *
 341          * @param string  $cmd            Command
 342          * @param array   $contact        Contact record of the receiver
 343          * @param array   $owner          Owner record of the sender
 344          * @param array   $items          Item record of the content and the parent
 345          * @param array   $target_item    Item record of the content
 346          * @param boolean $public_message Is the content public?
 347          * @param boolean $top_level      Is it a thread starter?
 348          * @param boolean $followup       Is it an answer to a remote post?
 349          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 350          * @throws \ImagickException
 351          */
 352         private static function deliverDiaspora($cmd, $contact, $owner, $items, $target_item, $public_message, $top_level, $followup)
 353         {
 354                 // We don't treat Forum posts as "wall-to-wall" to be able to post them via Diaspora
 355                 $walltowall = $top_level && ($owner['id'] != $items[0]['contact-id']) & ($owner['account-type'] != Model\User::ACCOUNT_TYPE_COMMUNITY);
 356
 357                 if ($public_message) {
 358                         $loc = 'public batch ' . $contact['batch'];
 359                 } else {
 360                         $loc = $contact['addr'];
 361                 }
 362
 363                 Logger::log('Deliver ' . defaults($target_item, 'guid', $target_item['id']) . ' via Diaspora to ' . $loc);
 364
 365                 if (Config::get('system', 'dfrn_only') || !Config::get('system', 'diaspora_enabled')) {
 366                         return;
 367                 }
 368                 if ($cmd == self::MAIL) {
 369                         Diaspora::sendMail($target_item, $owner, $contact);
 370                         return;
 371                 }
 372
 373                 if ($cmd == self::SUGGESTION) {
 374                         return;
 375                 }
 376                 if (!$contact['pubkey'] && !$public_message) {
 377                         return;
 378                 }
 379
 380                 if ($cmd == self::RELOCATION) {
 381                         $deliver_status = Diaspora::sendAccountMigration($owner, $contact, $owner['uid']);
 382                 } elseif ($target_item['deleted'] && (($target_item['uri'] === $target_item['parent-uri']) || $followup)) {
 383                         // top-level retraction
 384                         Logger::log('diaspora retract: ' . $loc);
 385                         $deliver_status = Diaspora::sendRetraction($target_item, $owner, $contact, $public_message);
 386                 } elseif ($followup) {
 387                         // send comments and likes to owner to relay
 388                         Logger::log('diaspora followup: ' . $loc);
 389                         $deliver_status = Diaspora::sendFollowup($target_item, $owner, $contact, $public_message);
 390                 } elseif ($target_item['uri'] !== $target_item['parent-uri']) {
 391                         // we are the relay - send comments, likes and relayable_retractions to our conversants
 392                         Logger::log('diaspora relay: ' . $loc);
 393                         $deliver_status = Diaspora::sendRelay($target_item, $owner, $contact, $public_message);
 394                 } elseif ($top_level && !$walltowall) {
 395                         // currently no workable solution for sending walltowall
 396                         Logger::log('diaspora status: ' . $loc);
 397                         $deliver_status = Diaspora::sendStatus($target_item, $owner, $contact, $public_message);
 398                 } else {
 399                         Logger::log('Unknown mode ' . $cmd . ' for ' . $loc);
 400                         return;
 401                 }
 402
 403                 if (($deliver_status >= 200) && ($deliver_status <= 299)) {
 404                         // We successfully delivered a message, the contact is alive
 405                         Model\Contact::unmarkForArchival($contact);
 406
 407                         if (in_array($cmd, [Delivery::POST, Delivery::POKE])) {
 408                                 Model\ItemDeliveryData::incrementQueueDone($target_item['id']);
 409                         }
 410                 } else {
 411                         // The message could not be delivered. We mark the contact as "dead"
 412                         Model\Contact::markForArchival($contact);
 413
 414                         if (empty($contact['contact-type']) || ($contact['contact-type'] != Model\Contact::TYPE_RELAY)) {
 415                                 Logger::info('Delivery failed: defer message', ['id' => defaults($target_item, 'guid', $target_item['id'])]);
 416                                 // defer message for redelivery
 417                                 Worker::defer();
 418                         } elseif (in_array($cmd, [Delivery::POST, Delivery::POKE])) {
 419                                 Model\ItemDeliveryData::incrementQueueDone($target_item['id']);
 420                         }
 421                 }
 422         }
 423
 424         /**
 425          * @brief Deliver content via mail
 426          *
 427          * @param string $cmd         Command
 428          * @param array  $contact     Contact record of the receiver
 429          * @param array  $owner       Owner record of the sender
 430          * @param array  $target_item Item record of the content
 431          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 432          * @throws \ImagickException
 433          */
 434         private static function deliverMail($cmd, $contact, $owner, $target_item)
 435         {
 436                 if (Config::get('system','dfrn_only')) {
 437                         return;
 438                 }
 439                 // WARNING: does not currently convert to RFC2047 header encodings, etc.
 440
 441                 $addr = $contact['addr'];
 442                 if (!strlen($addr)) {
 443                         return;
 444                 }
 445
 446                 if (!in_array($cmd, [self::POST, self::POKE])) {
 447                         return;
 448                 }
 449
 450                 $local_user = DBA::selectFirst('user', [], ['uid' => $owner['uid']]);
 451                 if (!DBA::isResult($local_user)) {
 452                         return;
 453                 }
 454
 455                 Logger::log('Deliver ' . $target_item["guid"] . ' via mail to ' . $contact['addr']);
 456
 457                 $reply_to = '';
 458                 $mailacct = DBA::selectFirst('mailacct', ['reply_to'], ['uid' => $owner['uid']]);
 459                 if (DBA::isResult($mailacct) && !empty($mailacct['reply_to'])) {
 460                         $reply_to = $mailacct['reply_to'];
 461                 }
 462
 463                 $subject  = ($target_item['title'] ? Email::encodeHeader($target_item['title'], 'UTF-8') : L10n::t("\x28no subject\x29"));
 464
 465                 // only expose our real email address to true friends
 466
 467                 if (($contact['rel'] == Model\Contact::FRIEND) && !$contact['blocked']) {
 468                         if ($reply_to) {
 469                                 $headers  = 'From: ' . Email::encodeHeader($local_user['username'],'UTF-8') . ' <' . $reply_to.'>' . "\n";
 470                                 $headers .= 'Sender: ' . $local_user['email'] . "\n";
 471                         } else {
 472                                 $headers  = 'From: ' . Email::encodeHeader($local_user['username'],'UTF-8').' <' . $local_user['email'] . '>' . "\n";
 473                         }
 474                 } else {
 475                         $headers  = 'From: '. Email::encodeHeader($local_user['username'], 'UTF-8') . ' <noreply@' . self::getApp()->getHostName() . '>' . "\n";
 476                 }
 477
 478                 $headers .= 'Message-Id: <' . Email::iri2msgid($target_item['uri']) . '>' . "\n";
 479
 480                 if ($target_item['uri'] !== $target_item['parent-uri']) {
 481                         $headers .= "References: <" . Email::iri2msgid($target_item["parent-uri"]) . ">";
 482
 483                         // If Threading is enabled, write down the correct parent
 484                         if (($target_item["thr-parent"] != "") && ($target_item["thr-parent"] != $target_item["parent-uri"])) {
 485                                 $headers .= " <".Email::iri2msgid($target_item["thr-parent"]).">";
 486                         }
 487
 488                         $headers .= "\n";
 489
 490                         if (empty($target_item['title'])) {
 491                                 $condition = ['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                                 } else {
 497                                         $condition = ['parent-uri' => $target_item['parent-uri'], 'uid' => $owner['uid']];
 498                                         $title = Model\Item::selectFirst(['title'], $condition);
 499
 500                                         if (DBA::isResult($title) && ($title['title'] != '')) {
 501                                                 $subject = $title['title'];
 502                                         }
 503                                 }
 504                         }
 505
 506                         if (strncasecmp($subject, 'RE:', 3)) {
 507                                 $subject = 'Re: ' . $subject;
 508                         }
 509                 }
 510
 511                 Email::send($addr, $subject, $headers, $target_item);
 512         }
 513 }