src/Worker/Delivery.php

   1 <?php
   2 /**
   3  * @file src/Worker/Delivery.php
   4  */
   5
   6 namespace Friendica\Worker;
   7
   8 use Friendica\App;
   9 use Friendica\Core\System;
  10 use Friendica\Core\Config;
  11 use Friendica\Database\DBM;
  12 use Friendica\Model\Contact;
  13 use Friendica\Model\User;
  14 use Friendica\Protocol\Diaspora;
  15 use Friendica\Protocol\DFRN;
  16 use Friendica\Protocol\Email;
  17 use dba;
  18
  19 require_once 'include/queue_fn.php';
  20 require_once 'include/html2plain.php';
  21 require_once 'include/datetime.php';
  22 require_once 'include/items.php';
  23 require_once 'include/bbcode.php';
  24
  25 /// @todo This is some ugly code that needs to be split into several methods
  26
  27 class Delivery {
  28         public static function execute($cmd, $item_id, $contact_id) {
  29                 global $a;
  30
  31                 logger('delivery: invoked: '.$cmd.': '.$item_id.' to '.$contact_id, LOGGER_DEBUG);
  32
  33                 $expire = false;
  34                 $mail = false;
  35                 $fsuggest = false;
  36                 $relocate = false;
  37                 $top_level = false;
  38                 $recipients = array();
  39                 $url_recipients = array();
  40                 $followup = false;
  41
  42                 $normal_mode = true;
  43
  44                 $recipients[] = $contact_id;
  45
  46                 if ($cmd === 'mail') {
  47                         $normal_mode = false;
  48                         $mail = true;
  49                         $message = q("SELECT * FROM `mail` WHERE `id` = %d LIMIT 1",
  50                                         intval($item_id)
  51                         );
  52                         if (!count($message)) {
  53                                 return;
  54                         }
  55                         $uid = $message[0]['uid'];
  56                         $recipients[] = $message[0]['contact-id'];
  57                         $item = $message[0];
  58                 } elseif ($cmd === 'expire') {
  59                         $normal_mode = false;
  60                         $expire = true;
  61                         $items = q("SELECT * FROM `item` WHERE `uid` = %d AND `wall` = 1
  62                                 AND `deleted` = 1 AND `changed` > UTC_TIMESTAMP() - INTERVAL 30 MINUTE",
  63                                 intval($item_id)
  64                         );
  65                         $uid = $item_id;
  66                         $item_id = 0;
  67                         if (!count($items)) {
  68                                 return;
  69                         }
  70                 } elseif ($cmd === 'suggest') {
  71                         $normal_mode = false;
  72                         $fsuggest = true;
  73
  74                         $suggest = q("SELECT * FROM `fsuggest` WHERE `id` = %d LIMIT 1",
  75                                 intval($item_id)
  76                         );
  77                         if (!count($suggest)) {
  78                                 return;
  79                         }
  80                         $uid = $suggest[0]['uid'];
  81                         $recipients[] = $suggest[0]['cid'];
  82                         $item = $suggest[0];
  83                 } elseif ($cmd === 'relocate') {
  84                         $normal_mode = false;
  85                         $relocate = true;
  86                         $uid = $item_id;
  87                 } else {
  88                         // find ancestors
  89                         $target_item = dba::fetch_first("SELECT `item`.*, `contact`.`uid` AS `cuid` FROM `item`
  90                                                         INNER JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
  91                                                         WHERE `item`.`id` = ? AND `visible` AND NOT `moderated`", $item_id);
  92
  93                         if (!DBM::is_result($target_item) || !intval($target_item['parent'])) {
  94                                 return;
  95                         }
  96
  97                         $parent_id = intval($target_item['parent']);
  98                         $uid = $target_item['cuid'];
  99                         $updated = $target_item['edited'];
 100
 101                         $items = q("SELECT `item`.*, `sign`.`signed_text`,`sign`.`signature`,`sign`.`signer`
 102                                 FROM `item` LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id` WHERE `parent` = %d AND visible = 1 AND moderated = 0 ORDER BY `id` ASC",
 103                                 intval($parent_id)
 104                         );
 105
 106                         if (!count($items)) {
 107                                 return;
 108                         }
 109
 110                         $icontacts = null;
 111                         $contacts_arr = array();
 112                         foreach ($items as $item) {
 113                                 if (!in_array($item['contact-id'],$contacts_arr)) {
 114                                         $contacts_arr[] = intval($item['contact-id']);
 115                                 }
 116                         }
 117                         if (count($contacts_arr)) {
 118                                 $str_contacts = implode(',',$contacts_arr);
 119                                 $icontacts = q("SELECT * FROM `contact`
 120                                         WHERE `id` IN ( $str_contacts ) "
 121                                 );
 122                         }
 123                         if ( !($icontacts && count($icontacts))) {
 124                                 return;
 125                         }
 126
 127                         // avoid race condition with deleting entries
 128
 129                         if ($items[0]['deleted']) {
 130                                 foreach ($items as $item) {
 131                                         $item['deleted'] = 1;
 132                                 }
 133                         }
 134
 135                         // When commenting too fast after delivery, a post wasn't recognized as top level post.
 136                         // The count then showed more than one entry. The additional check should help.
 137                         // The check for the "count" should be superfluous, but I'm not totally sure by now, so we keep it.
 138                         if ((($items[0]['id'] == $item_id) || (count($items) == 1)) && ($items[0]['uri'] === $items[0]['parent-uri'])) {
 139                                 logger('delivery: top level post');
 140                                 $top_level = true;
 141                         }
 142                 }
 143
 144                 $owner = User::getOwnerDataById($uid);
 145                 if (!$owner) {
 146                         return;
 147                 }
 148
 149                 $walltowall = (($top_level && ($owner['id'] != $items[0]['contact-id'])) ? true : false);
 150
 151                 $public_message = true;
 152
 153                 if (!$mail && !$fsuggest && !$relocate) {
 154                         $parent = $items[0];
 155
 156                         // This is IMPORTANT!!!!
 157
 158                         // We will only send a "notify owner to relay" or followup message if the referenced post
 159                         // originated on our system by virtue of having our hostname somewhere
 160                         // in the URI, AND it was a comment (not top_level) AND the parent originated elsewhere.
 161                         // if $parent['wall'] == 1 we will already have the parent message in our array
 162                         // and we will relay the whole lot.
 163
 164                         // expire sends an entire group of expire messages and cannot be forwarded.
 165                         // However the conversation owner will be a part of the conversation and will
 166                         // be notified during this run.
 167                         // Other DFRN conversation members will be alerted during polled updates.
 168
 169                         // Diaspora members currently are not notified of expirations, and other networks have
 170                         // either limited or no ability to process deletions. We should at least fix Diaspora
 171                         // by stringing togther an array of retractions and sending them onward.
 172
 173
 174                         $localhost = $a->get_hostname();
 175                         if (strpos($localhost,':')) {
 176                                 $localhost = substr($localhost,0,strpos($localhost,':'));
 177                         }
 178                         /**
 179                          *
 180                          * Be VERY CAREFUL if you make any changes to the following line. Seemingly innocuous changes
 181                          * have been known to cause runaway conditions which affected several servers, along with
 182                          * permissions issues.
 183                          *
 184                          */
 185
 186                         $relay_to_owner = false;
 187
 188                         if (!$top_level && ($parent['wall'] == 0) && !$expire && stristr($target_item['uri'],$localhost)) {
 189                                 $relay_to_owner = true;
 190                         }
 191
 192                         if ($relay_to_owner) {
 193                                 logger('followup '.$target_item["guid"], LOGGER_DEBUG);
 194                                 // local followup to remote post
 195                                 $followup = true;
 196                         }
 197
 198                         if (strlen($parent['allow_cid'])
 199                                 || strlen($parent['allow_gid'])
 200                                 || strlen($parent['deny_cid'])
 201                                 || strlen($parent['deny_gid'])
 202                                 || $parent["private"]) {
 203                                 $public_message = false; // private recipients, not public
 204                         }
 205
 206                 }
 207
 208                 $r = q("SELECT * FROM `contact` WHERE `id` = %d AND `blocked` = 0 AND `pending` = 0",
 209                         intval($contact_id)
 210                 );
 211
 212                 if (DBM::is_result($r)) {
 213                         $contact = $r[0];
 214                 }
 215                 if ($contact['self']) {
 216                         return;
 217                 }
 218                 $deliver_status = 0;
 219
 220                 logger("main delivery by delivery: followup=$followup mail=$mail fsuggest=$fsuggest relocate=$relocate - network ".$contact['network']);
 221
 222                 switch($contact['network']) {
 223
 224                         case NETWORK_DFRN:
 225                                 logger('notifier: '.$target_item["guid"].' dfrndelivery: '.$contact['name']);
 226
 227                                 if ($mail) {
 228                                         $item['body'] = fix_private_photos($item['body'],$owner['uid'],null,$message[0]['contact-id']);
 229                                         $atom = DFRN::mail($item, $owner);
 230                                 } elseif ($fsuggest) {
 231                                         $atom = DFRN::fsuggest($item, $owner);
 232                                         q("DELETE FROM `fsuggest` WHERE `id` = %d LIMIT 1", intval($item['id']));
 233                                 } elseif ($relocate) {
 234                                         $atom = DFRN::relocate($owner, $uid);
 235                                 } elseif ($followup) {
 236                                         $msgitems = array();
 237                                         foreach ($items as $item) {  // there is only one item
 238                                                 if (!$item['parent']) {
 239                                                         return;
 240                                                 }
 241                                                 if ($item['id'] == $item_id) {
 242                                                         logger('followup: item: '. print_r($item,true), LOGGER_DATA);
 243                                                         $msgitems[] = $item;
 244                                                 }
 245                                         }
 246                                         $atom = DFRN::entries($msgitems,$owner);
 247                                 } else {
 248                                         $msgitems = array();
 249                                         foreach ($items as $item) {
 250                                                 if (!$item['parent']) {
 251                                                         return;
 252                                                 }
 253
 254                                                 // private emails may be in included in public conversations. Filter them.
 255                                                 if ($public_message && $item['private']) {
 256                                                         return;
 257                                                 }
 258
 259                                                 $item_contact = get_item_contact($item,$icontacts);
 260                                                 if (!$item_contact) {
 261                                                         return;
 262                                                 }
 263
 264                                                 if ($normal_mode) {
 265                                                         if ($item_id == $item['id'] || $item['id'] == $item['parent']) {
 266                                                                 $item["entry:comment-allow"] = true;
 267                                                                 $item["entry:cid"] = (($top_level) ? $contact['id'] : 0);
 268                                                                 $msgitems[] = $item;
 269                                                         }
 270                                                 } else {
 271                                                         $item["entry:comment-allow"] = true;
 272                                                         $msgitems[] = $item;
 273                                                 }
 274                                         }
 275                                         $atom = DFRN::entries($msgitems,$owner);
 276                                 }
 277
 278                                 logger('notifier entry: '.$contact["url"].' '.$target_item["guid"].' entry: '.$atom, LOGGER_DEBUG);
 279
 280                                 logger('notifier: '.$atom, LOGGER_DATA);
 281                                 $basepath =  implode('/', array_slice(explode('/',$contact['url']),0,3));
 282
 283                                 // perform local delivery if we are on the same site
 284
 285                                 if (link_compare($basepath,System::baseUrl())) {
 286                                         $nickname = basename($contact['url']);
 287                                         if ($contact['issued-id']) {
 288                                                 $sql_extra = sprintf(" AND `dfrn-id` = '%s' ", dbesc($contact['issued-id']));
 289                                         } else {
 290                                                 $sql_extra = sprintf(" AND `issued-id` = '%s' ", dbesc($contact['dfrn-id']));
 291                                         }
 292
 293                                         $x = q("SELECT  `contact`.*, `contact`.`uid` AS `importer_uid`,
 294                                                 `contact`.`pubkey` AS `cpubkey`,
 295                                                 `contact`.`prvkey` AS `cprvkey`,
 296                                                 `contact`.`thumb` AS `thumb`,
 297                                                 `contact`.`url` as `url`,
 298                                                 `contact`.`name` as `senderName`,
 299                                                 `user`.*
 300                                                 FROM `contact`
 301                                                 INNER JOIN `user` ON `contact`.`uid` = `user`.`uid`
 302                                                 WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0
 303                                                 AND `contact`.`network` = '%s' AND `user`.`nickname` = '%s'
 304                                                 $sql_extra
 305                                                 AND `user`.`account_expired` = 0 AND `user`.`account_removed` = 0 LIMIT 1",
 306                                                 dbesc(NETWORK_DFRN),
 307                                                 dbesc($nickname)
 308                                         );
 309
 310                                         if ($x && count($x)) {
 311                                                 $write_flag = ((($x[0]['rel']) && ($x[0]['rel'] != CONTACT_IS_SHARING)) ? true : false);
 312                                                 if ((($owner['page-flags'] == PAGE_COMMUNITY) || $write_flag) && !$x[0]['writable']) {
 313                                                         q("UPDATE `contact` SET `writable` = 1 WHERE `id` = %d",
 314                                                                 intval($x[0]['id'])
 315                                                         );
 316                                                         $x[0]['writable'] = 1;
 317                                                 }
 318
 319                                                 $ssl_policy = Config::get('system','ssl_policy');
 320                                                 fix_contact_ssl_policy($x[0],$ssl_policy);
 321
 322                                                 // If we are setup as a soapbox we aren't accepting top level posts from this person
 323
 324                                                 if (($x[0]['page-flags'] == PAGE_SOAPBOX) && $top_level) {
 325                                                         break;
 326                                                 }
 327                                                 logger('mod-delivery: local delivery');
 328                                                 DFRN::import($atom, $x[0]);
 329                                                 break;
 330                                         }
 331                                 }
 332
 333                                 if (!was_recently_delayed($contact['id'])) {
 334                                         $deliver_status = DFRN::deliver($owner,$contact,$atom);
 335                                 } else {
 336                                         $deliver_status = (-1);
 337                                 }
 338
 339                                 logger('notifier: dfrn_delivery to '.$contact["url"].' with guid '.$target_item["guid"].' returns '.$deliver_status);
 340
 341                                 if ($deliver_status < 0) {
 342                                         logger('notifier: delivery failed: queuing message');
 343                                         add_to_queue($contact['id'],NETWORK_DFRN,$atom);
 344
 345                                         // The message could not be delivered. We mark the contact as "dead"
 346                                         Contact::markForArchival($contact);
 347                                 } else {
 348                                         // We successfully delivered a message, the contact is alive
 349                                         Contact::unmarkForArchival($contact);
 350                                 }
 351
 352                                 break;
 353
 354                         case NETWORK_OSTATUS:
 355                                 // Do not send to otatus if we are not configured to send to public networks
 356                                 if ($owner['prvnets']) {
 357                                         break;
 358                                 }
 359                                 if (Config::get('system','ostatus_disabled') || Config::get('system','dfrn_only')) {
 360                                         break;
 361                                 }
 362
 363                                 // There is currently no code here to distribute anything to OStatus.
 364                                 // This is done in "notifier.php" (See "url_recipients" and "push_notify")
 365                                 break;
 366
 367                         case NETWORK_MAIL:
 368
 369                                 if (Config::get('system','dfrn_only')) {
 370                                         break;
 371                                 }
 372                                 // WARNING: does not currently convert to RFC2047 header encodings, etc.
 373
 374                                 $addr = $contact['addr'];
 375                                 if (!strlen($addr)) {
 376                                         break;
 377                                 }
 378
 379                                 if ($cmd === 'wall-new' || $cmd === 'comment-new') {
 380                                         $it = null;
 381                                         if ($cmd === 'wall-new') {
 382                                                 $it = $items[0];
 383                                         } else {
 384                                                 $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
 385                                                         intval($item_id)
 386                                                 );
 387                                                 if (DBM::is_result($r)) {
 388                                                         $it = $r[0];
 389                                                 }
 390                                         }
 391                                         if (!$it) {
 392                                                 break;
 393                                         }
 394
 395                                         $local_user = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
 396                                                 intval($uid)
 397                                         );
 398                                         if (!count($local_user)) {
 399                                                 break;
 400                                         }
 401
 402                                         $reply_to = '';
 403                                         $r1 = q("SELECT * FROM `mailacct` WHERE `uid` = %d LIMIT 1",
 404                                                 intval($uid)
 405                                         );
 406                                         if ($r1 && $r1[0]['reply_to']) {
 407                                                 $reply_to = $r1[0]['reply_to'];
 408                                         }
 409
 410                                         $subject  = (($it['title']) ? Email::encodeHeader($it['title'],'UTF-8') : t("\x28no subject\x29")) ;
 411
 412                                         // only expose our real email address to true friends
 413
 414                                         if (($contact['rel'] == CONTACT_IS_FRIEND) && !$contact['blocked']) {
 415                                                 if ($reply_to) {
 416                                                         $headers  = 'From: '.Email::encodeHeader($local_user[0]['username'],'UTF-8').' <'.$reply_to.'>'."\n";
 417                                                         $headers .= 'Sender: '.$local_user[0]['email']."\n";
 418                                                 } else {
 419                                                         $headers  = 'From: '.Email::encodeHeader($local_user[0]['username'],'UTF-8').' <'.$local_user[0]['email'].'>'."\n";
 420                                                 }
 421                                         } else {
 422                                                 $headers  = 'From: '. Email::encodeHeader($local_user[0]['username'],'UTF-8') .' <'. t('noreply') .'@'.$a->get_hostname() .'>'. "\n";
 423                                         }
 424
 425                                         //if ($reply_to)
 426                                         //      $headers .= 'Reply-to: '.$reply_to . "\n";
 427
 428                                         $headers .= 'Message-Id: <'. Email::iri2msgid($it['uri']).'>'. "\n";
 429
 430                                         //logger("Mail: uri: ".$it['uri']." parent-uri ".$it['parent-uri'], LOGGER_DEBUG);
 431                                         //logger("Mail: Data: ".print_r($it, true), LOGGER_DEBUG);
 432                                         //logger("Mail: Data: ".print_r($it, true), LOGGER_DATA);
 433
 434                                         if ($it['uri'] !== $it['parent-uri']) {
 435                                                 $headers .= "References: <".Email::iri2msgid($it["parent-uri"]).">";
 436
 437                                                 // If Threading is enabled, write down the correct parent
 438                                                 if (($it["thr-parent"] != "") && ($it["thr-parent"] != $it["parent-uri"])) {
 439                                                         $headers .= " <".Email::iri2msgid($it["thr-parent"]).">";
 440                                                 }
 441                                                 $headers .= "\n";
 442
 443                                                 if (!$it['title']) {
 444                                                         $r = q("SELECT `title` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 445                                                                 dbesc($it['parent-uri']),
 446                                                                 intval($uid));
 447
 448                                                         if (DBM::is_result($r) && ($r[0]['title'] != '')) {
 449                                                                 $subject = $r[0]['title'];
 450                                                         } else {
 451                                                                 $r = q("SELECT `title` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d LIMIT 1",
 452                                                                         dbesc($it['parent-uri']),
 453                                                                         intval($uid));
 454
 455                                                                 if (DBM::is_result($r) && ($r[0]['title'] != '')) {
 456                                                                         $subject = $r[0]['title'];
 457                                                                 }
 458                                                         }
 459                                                 }
 460                                                 if (strncasecmp($subject,'RE:',3)) {
 461                                                         $subject = 'Re: '.$subject;
 462                                                 }
 463                                         }
 464                                         Email::send($addr, $subject, $headers, $it);
 465                                 }
 466                                 break;
 467
 468                         case NETWORK_DIASPORA:
 469                                 if ($public_message) {
 470                                         $loc = 'public batch '.$contact['batch'];
 471                                 } else {
 472                                         $loc = $contact['name'];
 473                                 }
 474
 475                                 logger('delivery: diaspora batch deliver: '.$loc);
 476
 477                                 if (Config::get('system','dfrn_only') || !Config::get('system','diaspora_enabled')) {
 478                                         break;
 479                                 }
 480                                 if ($mail) {
 481                                         Diaspora::sendMail($item,$owner,$contact);
 482                                         break;
 483                                 }
 484
 485                                 if (!$normal_mode) {
 486                                         break;
 487                                 }
 488                                 if (!$contact['pubkey'] && !$public_message) {
 489                                         break;
 490                                 }
 491                                 if (($target_item['deleted']) && (($target_item['uri'] === $target_item['parent-uri']) || $followup)) {
 492                                         // top-level retraction
 493                                         logger('diaspora retract: '.$loc);
 494                                         Diaspora::sendRetraction($target_item,$owner,$contact,$public_message);
 495                                         break;
 496                                 } elseif ($relocate) {
 497                                         Diaspora::sendAccountMigration($owner, $contact, $uid);
 498                                         break;
 499                                 } elseif ($followup) {
 500                                         // send comments and likes to owner to relay
 501                                         logger('diaspora followup: '.$loc);
 502                                         Diaspora::sendFollowup($target_item,$owner,$contact,$public_message);
 503                                         break;
 504                                 } elseif ($target_item['uri'] !== $target_item['parent-uri']) {
 505                                         // we are the relay - send comments, likes and relayable_retractions to our conversants
 506                                         logger('diaspora relay: '.$loc);
 507                                         Diaspora::sendRelay($target_item,$owner,$contact,$public_message);
 508                                         break;
 509                                 } elseif ($top_level && !$walltowall) {
 510                                         // currently no workable solution for sending walltowall
 511                                         logger('diaspora status: '.$loc);
 512                                         Diaspora::sendStatus($target_item,$owner,$contact,$public_message);
 513                                         break;
 514                                 }
 515
 516                                 logger('delivery: diaspora unknown mode: '.$contact['name']);
 517
 518                                 break;
 519
 520                         default:
 521                                 break;
 522                 }
 523
 524                 return;
 525         }
 526 }