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, $followup);
 186                                 break;
 187
 188                         case Protocol::MAIL:
 189                                 self::deliverMail($cmd, $contact, $owner, $target_item);
 190                                 break;
 191
 192                         default:
 193                                 break;
 194                 }
 195
 196                 return;
 197         }
 198
 199         /**
 200          * @brief Deliver content via DFRN
 201          *
 202          * @param string  $cmd            Command
 203          * @param array   $contact        Contact record of the receiver
 204          * @param array   $owner          Owner record of the sender
 205          * @param array   $items          Item record of the content and the parent
 206          * @param array   $target_item    Item record of the content
 207          * @param boolean $public_message Is the content public?
 208          * @param boolean $top_level      Is it a thread starter?
 209          * @param boolean $followup       Is it an answer to a remote post?
 210          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 211          * @throws \ImagickException
 212          */
 213         private static function deliverDFRN($cmd, $contact, $owner, $items, $target_item, $public_message, $top_level, $followup)
 214         {
 215                 Logger::log('Deliver ' . defaults($target_item, 'guid', $target_item['id']) . ' via DFRN to ' . (empty($contact['addr']) ? $contact['url'] : $contact['addr']));
 216
 217                 if ($cmd == self::MAIL) {
 218                         $item = $target_item;
 219                         $item['body'] = Model\Item::fixPrivatePhotos($item['body'], $owner['uid'], null, $item['contact-id']);
 220                         $atom = DFRN::mail($item, $owner);
 221                 } elseif ($cmd == self::SUGGESTION) {
 222                         $item = $target_item;
 223                         $atom = DFRN::fsuggest($item, $owner);
 224                         DBA::delete('fsuggest', ['id' => $item['id']]);
 225                 } elseif ($cmd == self::RELOCATION) {
 226                         $atom = DFRN::relocate($owner, $owner['uid']);
 227                 } elseif ($followup) {
 228                         $msgitems = [$target_item];
 229                         $atom = DFRN::entries($msgitems, $owner);
 230                 } else {
 231                         $msgitems = [];
 232                         foreach ($items as $item) {
 233                                 // Only add the parent when we don't delete other items.
 234                                 if (($target_item['id'] == $item['id']) || ($cmd != self::DELETION)) {
 235                                         $item["entry:comment-allow"] = true;
 236                                         $item["entry:cid"] = ($top_level ? $contact['id'] : 0);
 237                                         $msgitems[] = $item;
 238                                 }
 239                         }
 240                         $atom = DFRN::entries($msgitems, $owner);
 241                 }
 242
 243                 Logger::log('Notifier entry: ' . $contact["url"] . ' ' . defaults($target_item, 'guid', $target_item['id']) . ' entry: ' . $atom, Logger::DATA);
 244
 245                 $basepath =  implode('/', array_slice(explode('/', $contact['url']), 0, 3));
 246
 247                 // perform local delivery if we are on the same site
 248
 249                 if (Strings::compareLink($basepath, System::baseUrl())) {
 250                         $condition = ['nurl' => Strings::normaliseLink($contact['url']), 'self' => true];
 251                         $target_self = DBA::selectFirst('contact', ['uid'], $condition);
 252                         if (!DBA::isResult($target_self)) {
 253                                 return;
 254                         }
 255                         $target_uid = $target_self['uid'];
 256
 257                         // Check if the user has got this contact
 258                         $cid = Model\Contact::getIdForURL($owner['url'], $target_uid);
 259                         if (!$cid) {
 260                                 // Otherwise there should be a public contact
 261                                 $cid = Model\Contact::getIdForURL($owner['url']);
 262                                 if (!$cid) {
 263                                         return;
 264                                 }
 265                         }
 266
 267                         $target_importer = DFRN::getImporter($cid, $target_uid);
 268                         if (empty($target_importer)) {
 269                                 // This should never happen
 270                                 return;
 271                         }
 272
 273                         DFRN::import($atom, $target_importer);
 274
 275                         if (in_array($cmd, [Delivery::POST, Delivery::POKE])) {
 276                                 Model\ItemDeliveryData::incrementQueueDone($target_item['id'], Model\ItemDeliveryData::DFRN);
 277                         }
 278
 279                         return;
 280                 }
 281
 282                 $protocol = Model\ItemDeliveryData::DFRN;
 283
 284                 // We don't have a relationship with contacts on a public post.
 285                 // Se we transmit with the new method and via Diaspora as a fallback
 286                 if (!empty($items) && (($items[0]['uid'] == 0) || ($contact['uid'] == 0))) {
 287                         // Transmit in public if it's a relay post
 288                         $public_dfrn = ($contact['contact-type'] == Model\Contact::TYPE_RELAY);
 289
 290                         $deliver_status = DFRN::transmit($owner, $contact, $atom, $public_dfrn);
 291
 292                         // We never spool failed relay deliveries
 293                         if ($public_dfrn) {
 294                                 Logger::log('Relay delivery to ' . $contact["url"] . ' with guid ' . $target_item["guid"] . ' returns ' . $deliver_status);
 295                                 return;
 296                         }
 297
 298                         if (($deliver_status < 200) || ($deliver_status > 299)) {
 299                                 // Transmit via Diaspora if not possible via Friendica
 300                                 self::deliverDiaspora($cmd, $contact, $owner, $items, $target_item, $public_message, $top_level, $followup);
 301                                 return;
 302                         }
 303                 } elseif ($cmd != self::RELOCATION) {
 304                         // DFRN payload over Diaspora transport layer
 305                         $deliver_status = DFRN::transmit($owner, $contact, $atom);
 306                         if ($deliver_status < 200) {
 307                                 // Legacy DFRN
 308                                 $deliver_status = DFRN::deliver($owner, $contact, $atom);
 309                                 $protocol = Model\ItemDeliveryData::LEGACY_DFRN;
 310                         }
 311                 } else {
 312                         $deliver_status = DFRN::deliver($owner, $contact, $atom);
 313                         $protocol = Model\ItemDeliveryData::LEGACY_DFRN;
 314                 }
 315
 316                 Logger::info('DFRN Delivery', ['cmd' => $cmd, 'url' => $contact['url'], 'guid' => defaults($target_item, 'guid', $target_item['id']), 'return' => $deliver_status]);
 317
 318                 if (($deliver_status >= 200) && ($deliver_status <= 299)) {
 319                         // We successfully delivered a message, the contact is alive
 320                         Model\Contact::unmarkForArchival($contact);
 321
 322                         if (in_array($cmd, [Delivery::POST, Delivery::POKE])) {
 323                                 Model\ItemDeliveryData::incrementQueueDone($target_item['id'], $protocol);
 324                         }
 325                 } else {
 326                         // The message could not be delivered. We mark the contact as "dead"
 327                         Model\Contact::markForArchival($contact);
 328
 329                         Logger::info('Delivery failed: defer message', ['id' => defaults($target_item, 'guid', $target_item['id'])]);
 330                         if (!Worker::defer() && in_array($cmd, [Delivery::POST, Delivery::POKE])) {
 331                                 Model\ItemDeliveryData::incrementQueueFailed($target_item['id']);
 332                         }
 333                 }
 334         }
 335
 336         /**
 337          * @brief Deliver content via Diaspora
 338          *
 339          * @param string  $cmd            Command
 340          * @param array   $contact        Contact record of the receiver
 341          * @param array   $owner          Owner record of the sender
 342          * @param array   $items          Item record of the content and the parent
 343          * @param array   $target_item    Item record of the content
 344          * @param boolean $public_message Is the content public?
 345          * @param boolean $top_level      Is it a thread starter?
 346          * @param boolean $followup       Is it an answer to a remote post?
 347          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 348          * @throws \ImagickException
 349          */
 350         private static function deliverDiaspora($cmd, $contact, $owner, $items, $target_item, $public_message, $top_level, $followup)
 351         {
 352                 // We don't treat Forum posts as "wall-to-wall" to be able to post them via Diaspora
 353                 $walltowall = $top_level && ($owner['id'] != $items[0]['contact-id']) & ($owner['account-type'] != Model\User::ACCOUNT_TYPE_COMMUNITY);
 354
 355                 if ($public_message) {
 356                         $loc = 'public batch ' . $contact['batch'];
 357                 } else {
 358                         $loc = $contact['addr'];
 359                 }
 360
 361                 Logger::log('Deliver ' . defaults($target_item, 'guid', $target_item['id']) . ' via Diaspora to ' . $loc);
 362
 363                 if (Config::get('system', 'dfrn_only') || !Config::get('system', 'diaspora_enabled')) {
 364                         return;
 365                 }
 366
 367                 if ($cmd == self::MAIL) {
 368                         Diaspora::sendMail($target_item, $owner, $contact);
 369                         return;
 370                 }
 371
 372                 if ($cmd == self::SUGGESTION) {
 373                         return;
 374                 }
 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'], Model\ItemDeliveryData::DIASPORA);
 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', $target_item['id'])]);
 416                                 // defer message for redelivery
 417                                 if (!Worker::defer() && in_array($cmd, [Delivery::POST, Delivery::POKE])) {
 418                                         Model\ItemDeliveryData::incrementQueueFailed($target_item['id'], Model\ItemDeliveryData::DIASPORA);
 419                                 }
 420                         } elseif (in_array($cmd, [Delivery::POST, Delivery::POKE])) {
 421                                 Model\ItemDeliveryData::incrementQueueDone($target_item['id'], Model\ItemDeliveryData::DIASPORA);
 422                         }
 423                 }
 424         }
 425
 426         /**
 427          * @brief Deliver content via mail
 428          *
 429          * @param string $cmd         Command
 430          * @param array  $contact     Contact record of the receiver
 431          * @param array  $owner       Owner record of the sender
 432          * @param array  $target_item Item record of the content
 433          * @throws \Friendica\Network\HTTPException\InternalServerErrorException
 434          * @throws \ImagickException
 435          */
 436         private static function deliverMail($cmd, $contact, $owner, $target_item)
 437         {
 438                 if (Config::get('system','dfrn_only')) {
 439                         return;
 440                 }
 441                 // WARNING: does not currently convert to RFC2047 header encodings, etc.
 442
 443                 $addr = $contact['addr'];
 444                 if (!strlen($addr)) {
 445                         return;
 446                 }
 447
 448                 if (!in_array($cmd, [self::POST, self::POKE])) {
 449                         return;
 450                 }
 451
 452                 $local_user = DBA::selectFirst('user', [], ['uid' => $owner['uid']]);
 453                 if (!DBA::isResult($local_user)) {
 454                         return;
 455                 }
 456
 457                 Logger::log('Deliver ' . $target_item["guid"] . ' via mail to ' . $contact['addr']);
 458
 459                 $reply_to = '';
 460                 $mailacct = DBA::selectFirst('mailacct', ['reply_to'], ['uid' => $owner['uid']]);
 461                 if (DBA::isResult($mailacct) && !empty($mailacct['reply_to'])) {
 462                         $reply_to = $mailacct['reply_to'];
 463                 }
 464
 465                 $subject  = ($target_item['title'] ? Email::encodeHeader($target_item['title'], 'UTF-8') : L10n::t("\x28no subject\x29"));
 466
 467                 // only expose our real email address to true friends
 468
 469                 if (($contact['rel'] == Model\Contact::FRIEND) && !$contact['blocked']) {
 470                         if ($reply_to) {
 471                                 $headers  = 'From: ' . Email::encodeHeader($local_user['username'],'UTF-8') . ' <' . $reply_to.'>' . "\n";
 472                                 $headers .= 'Sender: ' . $local_user['email'] . "\n";
 473                         } else {
 474                                 $headers  = 'From: ' . Email::encodeHeader($local_user['username'],'UTF-8').' <' . $local_user['email'] . '>' . "\n";
 475                         }
 476                 } else {
 477                         $headers  = 'From: '. Email::encodeHeader($local_user['username'], 'UTF-8') . ' <noreply@' . self::getApp()->getHostName() . '>' . "\n";
 478                 }
 479
 480                 $headers .= 'Message-Id: <' . Email::iri2msgid($target_item['uri']) . '>' . "\n";
 481
 482                 if ($target_item['uri'] !== $target_item['parent-uri']) {
 483                         $headers .= "References: <" . Email::iri2msgid($target_item["parent-uri"]) . ">";
 484
 485                         // If Threading is enabled, write down the correct parent
 486                         if (($target_item["thr-parent"] != "") && ($target_item["thr-parent"] != $target_item["parent-uri"])) {
 487                                 $headers .= " <".Email::iri2msgid($target_item["thr-parent"]).">";
 488                         }
 489
 490                         $headers .= "\n";
 491
 492                         if (empty($target_item['title'])) {
 493                                 $condition = ['uri' => $target_item['parent-uri'], 'uid' => $owner['uid']];
 494                                 $title = Model\Item::selectFirst(['title'], $condition);
 495
 496                                 if (DBA::isResult($title) && ($title['title'] != '')) {
 497                                         $subject = $title['title'];
 498                                 } else {
 499                                         $condition = ['parent-uri' => $target_item['parent-uri'], 'uid' => $owner['uid']];
 500                                         $title = Model\Item::selectFirst(['title'], $condition);
 501
 502                                         if (DBA::isResult($title) && ($title['title'] != '')) {
 503                                                 $subject = $title['title'];
 504                                         }
 505                                 }
 506                         }
 507
 508                         if (strncasecmp($subject, 'RE:', 3)) {
 509                                 $subject = 'Re: ' . $subject;
 510                         }
 511                 }
 512
 513                 Email::send($addr, $subject, $headers, $target_item);
 514         }
 515 }