src/Model/Post/UserNotification.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2021, the Friendica project
   4  *
   5  * @license GNU AGPL version 3 or any later version
   6  *
   7  * This program is free software: you can redistribute it and/or modify
   8  * it under the terms of the GNU Affero General Public License as
   9  * published by the Free Software Foundation, either version 3 of the
  10  * License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU Affero General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Affero General Public License
  18  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  19  *
  20  */
  21
  22 namespace Friendica\Model\Post;
  23
  24 use \BadMethodCallException;
  25 use Friendica\Core\Logger;
  26 use Friendica\Core\Hook;
  27 use Friendica\Database\Database;
  28 use Friendica\Database\DBA;
  29 use Friendica\Database\DBStructure;
  30 use Friendica\DI;
  31 use Friendica\Model\Contact;
  32 use Friendica\Model\Post;
  33 use Friendica\Model\Subscription;
  34 use Friendica\Util\Strings;
  35 use Friendica\Model\Tag;
  36 use Friendica\Protocol\Activity;
  37 use Friendica\Util\DateTimeFormat;
  38
  39 class UserNotification
  40 {
  41         // Notification types
  42         const TYPE_NONE                   = 0;
  43         const TYPE_EXPLICIT_TAGGED        = 1;
  44         const TYPE_IMPLICIT_TAGGED        = 2;
  45         const TYPE_THREAD_COMMENT         = 4;
  46         const TYPE_DIRECT_COMMENT         = 8;
  47         const TYPE_COMMENT_PARTICIPATION  = 16;
  48         const TYPE_ACTIVITY_PARTICIPATION = 32;
  49         const TYPE_DIRECT_THREAD_COMMENT  = 64;
  50         const TYPE_SHARED                 = 128;
  51
  52         /**
  53          * Insert a new user notification entry
  54          *
  55          * @param integer $uri_id
  56          * @param integer $uid
  57          * @param array   $fields
  58          * @return bool   success
  59          * @throws \Exception
  60          */
  61         public static function insert(int $uri_id, int $uid, array $data = [])
  62         {
  63                 if (empty($uri_id)) {
  64                         throw new BadMethodCallException('Empty URI_id');
  65                 }
  66
  67                 $fields = DBStructure::getFieldsForTable('post-user-notification', $data);
  68
  69                 // Additionally assign the key fields
  70                 $fields['uri-id'] = $uri_id;
  71                 $fields['uid'] = $uid;
  72
  73                 return DBA::insert('post-user-notification', $fields, Database::INSERT_IGNORE);
  74         }
  75
  76         /**
  77          * Update a user notification entry
  78          *
  79          * @param integer $uri_id
  80          * @param integer $uid
  81          * @param array   $data
  82          * @param bool    $insert_if_missing
  83          * @return bool
  84          * @throws \Exception
  85          */
  86         public static function update(int $uri_id, int $uid, array $data = [], bool $insert_if_missing = false)
  87         {
  88                 if (empty($uri_id)) {
  89                         throw new BadMethodCallException('Empty URI_id');
  90                 }
  91
  92                 $fields = DBStructure::getFieldsForTable('post-user-notification', $data);
  93
  94                 // Remove the key fields
  95                 unset($fields['uri-id']);
  96                 unset($fields['uid']);
  97
  98                 if (empty($fields)) {
  99                         return true;
 100                 }
 101
 102                 return DBA::update('post-user-notification', $fields, ['uri-id' => $uri_id, 'uid' => $uid], $insert_if_missing ? true : []);
 103         }
 104
 105         /**
 106          * Delete a row from the post-user-notification table
 107          *
 108          * @param array        $conditions Field condition(s)
 109          * @param array        $options
 110          *                           - cascade: If true we delete records in other tables that depend on the one we're deleting through
 111          *                           relations (default: true)
 112          *
 113          * @return boolean was the delete successful?
 114          * @throws \Exception
 115          */
 116         public static function delete(array $conditions, array $options = [])
 117         {
 118                 return DBA::delete('post-user-notification', $conditions, $options);
 119         }
 120
 121         /**
 122          * Checks an item for notifications and sets the "notification-type" field
 123          * @ToDo:
 124          * - Check for mentions in posts with "uid=0" where the user hadn't interacted before
 125          *
 126          * @param int $uri_id URI ID
 127          * @param int $uid    user ID
 128          */
 129         public static function setNotification(int $uri_id, int $uid)
 130         {
 131                 $fields = ['id', 'uri-id', 'parent-uri-id', 'uid', 'body', 'parent', 'gravity', 'vid', 'gravity',
 132                         'private', 'contact-id', 'thr-parent', 'thr-parent-id', 'parent-uri-id', 'parent-uri', 'author-id', 'verb'];
 133                 $item = Post::selectFirst($fields, ['uri-id' => $uri_id, 'uid' => $uid, 'origin' => false]);
 134                 if (!DBA::isResult($item)) {
 135                         return;
 136                 }
 137
 138                 // "Activity::FOLLOW" is an automated activity, so we ignore it here
 139                 if ($item['verb'] == Activity::FOLLOW) {
 140                         return;
 141                 }
 142
 143                 if ($item['uid'] == 0) {
 144                         $uids = [];
 145                 } else {
 146                         // Always include the item user
 147                         $uids = [$item['uid']];
 148                 }
 149
 150                 // Add every user who participated so far in this thread
 151                 // This can only happen with participations on global items. (means: uid = 0)
 152                 $users = DBA::p("SELECT DISTINCT(`contact-uid`) AS `uid` FROM `post-user-view`
 153                         WHERE `contact-uid` != 0 AND `parent-uri-id` = ? AND `uid` = ?", $item['parent-uri-id'], $uid);
 154                 while ($user = DBA::fetch($users)) {
 155                         $uids[] = $user['uid'];
 156                 }
 157                 DBA::close($users);
 158
 159                 foreach (array_unique($uids) as $uid) {
 160                         self::setNotificationForUser($item, $uid);
 161                 }
 162         }
 163
 164         /**
 165          * Checks an item for notifications for the given user and sets the "notification-type" field
 166          *
 167          * @param array $item Item array
 168          * @param int   $uid  User ID
 169          */
 170         private static function setNotificationForUser(array $item, int $uid)
 171         {
 172                 if (Post\ThreadUser::getIgnored($item['parent-uri-id'], $uid)) {
 173                         return;
 174                 }
 175
 176                 $notification_type = self::TYPE_NONE;
 177
 178                 if (self::checkShared($item, $uid)) {
 179                         $notification_type = $notification_type | self::TYPE_SHARED;
 180                         self::insertNoticationByItem(self::TYPE_SHARED, $uid, $item);
 181                         $notified = true;
 182                 } else {
 183                         $notified = false;
 184                 }
 185
 186                 $profiles = self::getProfileForUser($uid);
 187
 188                 // Fetch all contacts for the given profiles
 189                 $contacts = [];
 190                 $ret = DBA::select('contact', ['id'], ['uid' => 0, 'nurl' => $profiles]);
 191                 while ($contact = DBA::fetch($ret)) {
 192                         $contacts[] = $contact['id'];
 193                 }
 194                 DBA::close($ret);
 195
 196                 // Don't create notifications for user's posts
 197                 if (in_array($item['author-id'], $contacts)) {
 198                         return;
 199                 }
 200
 201                 if (self::checkExplicitMention($item, $profiles)) {
 202                         $notification_type = $notification_type | self::TYPE_EXPLICIT_TAGGED;
 203                         if (!$notified) {
 204                                 self::insertNoticationByItem( self::TYPE_EXPLICIT_TAGGED, $uid, $item);
 205                                 $notified = true;
 206                         }
 207                 }
 208
 209                 if (self::checkImplicitMention($item, $profiles)) {
 210                         $notification_type = $notification_type | self::TYPE_IMPLICIT_TAGGED;
 211                         if (!$notified) {
 212                                 self::insertNoticationByItem(self::TYPE_IMPLICIT_TAGGED, $uid, $item);
 213                                 $notified = true;
 214                         }
 215                 }
 216
 217                 if (self::checkDirectComment($item, $contacts)) {
 218                         $notification_type = $notification_type | self::TYPE_DIRECT_COMMENT;
 219                         if (!$notified) {
 220                                 self::insertNoticationByItem(self::TYPE_DIRECT_COMMENT, $uid, $item);
 221                                 $notified = true;
 222                         }
 223                 }
 224
 225                 if (self::checkDirectCommentedThread($item, $contacts)) {
 226                         $notification_type = $notification_type | self::TYPE_DIRECT_THREAD_COMMENT;
 227                         if (!$notified) {
 228                                 self::insertNoticationByItem(self::TYPE_DIRECT_THREAD_COMMENT, $uid, $item);
 229                                 $notified = true;
 230                         }
 231                 }
 232
 233                 if (self::checkCommentedThread($item, $contacts)) {
 234                         $notification_type = $notification_type | self::TYPE_THREAD_COMMENT;
 235                         if (!$notified) {
 236                                 self::insertNoticationByItem(self::TYPE_THREAD_COMMENT, $uid, $item);
 237                                 $notified = true;
 238                         }
 239                 }
 240
 241                 if (self::checkCommentedParticipation($item, $contacts)) {
 242                         $notification_type = $notification_type | self::TYPE_COMMENT_PARTICIPATION;
 243                         if (!$notified) {
 244                                 self::insertNoticationByItem(self::TYPE_COMMENT_PARTICIPATION, $uid, $item);
 245                                 $notified = true;
 246                         }
 247                 }
 248
 249                 if (self::checkActivityParticipation($item, $contacts)) {
 250                         $notification_type = $notification_type | self::TYPE_ACTIVITY_PARTICIPATION;
 251                         if (!$notified) {
 252                                 self::insertNoticationByItem(self::TYPE_ACTIVITY_PARTICIPATION, $uid, $item);
 253                                 $notified = true;
 254                         }
 255                 }
 256
 257                 // Only create notifications for posts and comments, not for activities
 258                 if (empty($notification_type) || !in_array($item['gravity'], [GRAVITY_PARENT, GRAVITY_COMMENT])) {
 259                         return;
 260                 }
 261
 262                 Logger::info('Set notification', ['uri-id' => $item['uri-id'], 'uid' => $uid, 'notification-type' => $notification_type]);
 263
 264                 $fields = ['notification-type' => $notification_type];
 265                 Post\User::update($item['uri-id'], $uid, $fields);
 266                 self::update($item['uri-id'], $uid, $fields, true);
 267         }
 268
 269         /**
 270          * Add a notification entry for a given item array
 271          *
 272          * @param int $type   User notification type
 273          * @param int $uid    User ID
 274          * @param array $item Item array
 275          * @return boolean
 276          */
 277         private static function insertNoticationByItem(int $type, int $uid, array $item)
 278         {
 279                 if (($item['gravity'] == GRAVITY_ACTIVITY) &&
 280                         !in_array($type, [self::TYPE_DIRECT_COMMENT, self::TYPE_DIRECT_THREAD_COMMENT])) {
 281                         // Activities are only stored when performed on the user's post or comment
 282                         return;
 283                 }
 284
 285                 $fields = [
 286                         'uid' => $uid,
 287                         'vid' => $item['vid'],
 288                         'type' => $type,
 289                         'actor-id' => $item['author-id'],
 290                         'parent-uri-id' => $item['parent-uri-id'],
 291                         'created' => DateTimeFormat::utcNow(),
 292                 ];
 293
 294                 if ($item['gravity'] == GRAVITY_ACTIVITY) {
 295                         $fields['target-uri-id'] = $item['thr-parent-id'];
 296                 } else {
 297                         $fields['target-uri-id'] = $item['uri-id'];
 298                 }
 299
 300                 $ret = DBA::insert('notification', $fields, Database::INSERT_IGNORE);
 301                 if ($ret) {
 302                         $id = DBA::lastInsertId();
 303                         if (!empty($id)) {
 304                                 Subscription::pushByNotificationId($id);
 305                         }
 306                 }
 307                 return $ret;
 308         }
 309
 310         /**
 311          * Add a notification entry
 312          *
 313          * @param int $actor Contact ID of the actor
 314          * @param int $vid   Verb ID
 315          * @param int $uid   User ID
 316          * @return boolean
 317          */
 318         public static function insertNotication(int $actor, int $vid, int $uid)
 319         {
 320                 $fields = [
 321                         'uid' => $uid,
 322                         'vid' => $vid,
 323                         'type' => self::TYPE_NONE,
 324                         'actor-id' => $actor,
 325                         'created' => DateTimeFormat::utcNow(),
 326                 ];
 327
 328                 $ret = DBA::insert('notification', $fields, Database::INSERT_IGNORE);
 329                 if ($ret) {
 330                         $id = DBA::lastInsertId();
 331                         if (!empty($id)) {
 332                                 Subscription::pushByNotificationId($id);
 333                         }
 334                 }
 335                 return $ret;
 336         }
 337
 338         /**
 339          * Fetch all profiles (contact URL) of a given user
 340          * @param int $uid User ID
 341          *
 342          * @return array Profile links
 343          */
 344         private static function getProfileForUser(int $uid)
 345         {
 346                 $notification_data = ['uid' => $uid, 'profiles' => []];
 347                 Hook::callAll('check_item_notification', $notification_data);
 348
 349                 $profiles = $notification_data['profiles'];
 350
 351                 $user = DBA::selectFirst('user', ['nickname'], ['uid' => $uid]);
 352                 if (!DBA::isResult($user)) {
 353                         return [];
 354                 }
 355
 356                 $owner = DBA::selectFirst('contact', ['url', 'alias'], ['self' => true, 'uid' => $uid]);
 357                 if (!DBA::isResult($owner)) {
 358                         return [];
 359                 }
 360
 361                 // This is our regular URL format
 362                 $profiles[] = $owner['url'];
 363
 364                 // Now the alias
 365                 $profiles[] = $owner['alias'];
 366
 367                 // Notifications from Diaspora are often with an URL in the Diaspora format
 368                 $profiles[] = DI::baseUrl() . '/u/' . $user['nickname'];
 369
 370                 // Validate and add profile links
 371                 foreach ($profiles AS $key => $profile) {
 372                         // Check for invalid profile urls (without scheme, host or path) and remove them
 373                         if (empty(parse_url($profile, PHP_URL_SCHEME)) || empty(parse_url($profile, PHP_URL_HOST)) || empty(parse_url($profile, PHP_URL_PATH))) {
 374                                 unset($profiles[$key]);
 375                                 continue;
 376                         }
 377
 378                         // Add the normalized form
 379                         $profile = Strings::normaliseLink($profile);
 380                         $profiles[] = $profile;
 381
 382                         // Add the SSL form
 383                         $profile = str_replace('http://', 'https://', $profile);
 384                         $profiles[] = $profile;
 385                 }
 386
 387                 return array_unique($profiles);
 388         }
 389
 390         /**
 391          * Check for a "shared" notification for every new post of contacts from the given user
 392          * @param array $item
 393          * @param int   $uid  User ID
 394          * @return bool A contact had shared something
 395          */
 396         private static function checkShared(array $item, int $uid)
 397         {
 398                 // Only check on original posts and reshare ("announce") activities, otherwise return
 399                 if (($item['gravity'] != GRAVITY_PARENT) && ($item['verb'] != Activity::ANNOUNCE)) {
 400                         return false;
 401                 }
 402
 403                 // Check if the contact posted or shared something directly
 404                 if (DBA::exists('contact', ['id' => $item['contact-id'], 'notify_new_posts' => true])) {
 405                         return true;
 406                 }
 407
 408                 // The following check doesn't make sense on activities, so quit here
 409                 if ($item['verb'] == Activity::ANNOUNCE) {
 410                         return false;
 411                 }
 412
 413                 // Check if the contact is a mentioned forum
 414                 $tags = DBA::select('tag-view', ['url'], ['uri-id' => $item['uri-id'], 'type' => [Tag::MENTION, Tag::EXCLUSIVE_MENTION]]);
 415                 while ($tag = DBA::fetch($tags)) {
 416                         $condition = ['nurl' => Strings::normaliseLink($tag['url']), 'uid' => $uid, 'notify_new_posts' => true, 'contact-type' => Contact::TYPE_COMMUNITY];
 417                         if (DBA::exists('contact', $condition)) {
 418                                 return true;
 419                         }
 420                 }
 421                 DBA::close($tags);
 422
 423                 return false;
 424         }
 425
 426         /**
 427          * Check for an implicit mention (only tag, no body) of the given user
 428          * @param array $item
 429          * @param array $profiles Profile links
 430          * @return bool The user is mentioned
 431          */
 432         private static function checkImplicitMention(array $item, array $profiles)
 433         {
 434                 $mentions = Tag::getByURIId($item['uri-id'], [Tag::IMPLICIT_MENTION]);
 435                 foreach ($mentions as $mention) {
 436                         foreach ($profiles as $profile) {
 437                                 if (Strings::compareLink($profile, $mention['url'])) {
 438                                         return true;
 439                                 }
 440                         }
 441                 }
 442
 443                 return false;
 444         }
 445
 446         /**
 447          * Check for an explicit mention (tag and body) of the given user
 448          * @param array $item
 449          * @param array $profiles Profile links
 450          * @return bool The user is mentioned
 451          */
 452         private static function checkExplicitMention(array $item, array $profiles)
 453         {
 454                 $mentions = Tag::getByURIId($item['uri-id'], [Tag::MENTION, Tag::EXCLUSIVE_MENTION]);
 455                 foreach ($mentions as $mention) {
 456                         foreach ($profiles as $profile) {
 457                                 if (Strings::compareLink($profile, $mention['url'])) {
 458                                         return true;
 459                                 }
 460                         }
 461                 }
 462
 463                 return false;
 464         }
 465
 466         /**
 467          * Check if the given user had created this thread
 468          * @param array $item
 469          * @param array $contacts Array of contact IDs
 470          * @return bool The user had created this thread
 471          */
 472         private static function checkCommentedThread(array $item, array $contacts)
 473         {
 474                 $condition = ['parent' => $item['parent'], 'author-id' => $contacts, 'deleted' => false, 'gravity' => GRAVITY_PARENT];
 475                 return Post::exists($condition);
 476         }
 477
 478         /**
 479          * Check for a direct comment to a post of the given user
 480          * @param array $item
 481          * @param array $contacts Array of contact IDs
 482          * @return bool The item is a direct comment to a user comment
 483          */
 484         private static function checkDirectComment(array $item, array $contacts)
 485         {
 486                 $condition = ['uri' => $item['thr-parent'], 'uid' => $item['uid'], 'author-id' => $contacts, 'deleted' => false, 'gravity' => GRAVITY_COMMENT];
 487                 return Post::exists($condition);
 488         }
 489
 490         /**
 491          * Check for a direct comment to the starting post of the given user
 492          * @param array $item
 493          * @param array $contacts Array of contact IDs
 494          * @return bool The user had created this thread
 495          */
 496         private static function checkDirectCommentedThread(array $item, array $contacts)
 497         {
 498                 $condition = ['uri' => $item['thr-parent'], 'uid' => $item['uid'], 'author-id' => $contacts, 'deleted' => false, 'gravity' => GRAVITY_PARENT];
 499                 return Post::exists($condition);
 500         }
 501
 502         /**
 503          *  Check if the user had commented in this thread
 504          * @param array $item
 505          * @param array $contacts Array of contact IDs
 506          * @return bool The user had commented in the thread
 507          */
 508         private static function checkCommentedParticipation(array $item, array $contacts)
 509         {
 510                 $condition = ['parent' => $item['parent'], 'author-id' => $contacts, 'deleted' => false, 'gravity' => GRAVITY_COMMENT];
 511                 return Post::exists($condition);
 512         }
 513
 514         /**
 515          * Check if the user had interacted in this thread (Like, Dislike, ...)
 516          * @param array $item
 517          * @param array $contacts Array of contact IDs
 518          * @return bool The user had interacted in the thread
 519          */
 520         private static function checkActivityParticipation(array $item, array $contacts)
 521         {
 522                 $condition = ['parent' => $item['parent'], 'author-id' => $contacts, 'deleted' => false, 'gravity' => GRAVITY_ACTIVITY];
 523                 return Post::exists($condition);
 524         }
 525 }