src/Model/Post/UserNotification.php

   1 <?php
   2 /**
   3  * @copyright Copyright (C) 2010-2022, 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 Exception;
  26 use Friendica\Core\Hook;
  27 use Friendica\Core\Logger;
  28 use Friendica\Database\Database;
  29 use Friendica\Database\DBA;
  30 use Friendica\Database\DBStructure;
  31 use Friendica\DI;
  32 use Friendica\Model\Contact;
  33 use Friendica\Model\Post;
  34 use Friendica\Model\Subscription;
  35 use Friendica\Model\Tag;
  36 use Friendica\Model\User;
  37 use Friendica\Navigation\Notifications;
  38 use Friendica\Network\HTTPException;
  39 use Friendica\Protocol\Activity;
  40 use Friendica\Util\Strings;
  41
  42 class UserNotification
  43 {
  44         // Notification types
  45         const TYPE_NONE                   = 0;
  46         const TYPE_EXPLICIT_TAGGED        = 1;
  47         const TYPE_IMPLICIT_TAGGED        = 2;
  48         const TYPE_THREAD_COMMENT         = 4;
  49         const TYPE_DIRECT_COMMENT         = 8;
  50         const TYPE_COMMENT_PARTICIPATION  = 16;
  51         const TYPE_ACTIVITY_PARTICIPATION = 32;
  52         const TYPE_DIRECT_THREAD_COMMENT  = 64;
  53         const TYPE_SHARED                 = 128;
  54
  55         /**
  56          * Insert a new user notification entry
  57          *
  58          * @param integer $uri_id
  59          * @param integer $uid
  60          * @param array   $data
  61          * @return bool   success
  62          * @throws Exception
  63          */
  64         public static function insert(int $uri_id, int $uid, array $data = []): bool
  65         {
  66                 if (empty($uri_id)) {
  67                         throw new BadMethodCallException('Empty URI_id');
  68                 }
  69
  70                 $fields = DBStructure::getFieldsForTable('post-user-notification', $data);
  71
  72                 $fields['uri-id'] = $uri_id;
  73                 $fields['uid']    = $uid;
  74
  75                 return DBA::insert('post-user-notification', $fields, Database::INSERT_IGNORE);
  76         }
  77
  78         /**
  79          * Update a user notification entry
  80          *
  81          * @param integer $uri_id
  82          * @param integer $uid
  83          * @param array   $data
  84          * @param bool    $insert_if_missing
  85          * @return bool
  86          * @throws Exception
  87          */
  88         public static function update(int $uri_id, int $uid, array $data = [], bool $insert_if_missing = false): bool
  89         {
  90                 if (empty($uri_id)) {
  91                         throw new BadMethodCallException('Empty URI_id');
  92                 }
  93
  94                 $fields = DBStructure::getFieldsForTable('post-user-notification', $data);
  95
  96                 // Remove the key fields
  97                 unset($fields['uri-id']);
  98                 unset($fields['uid']);
  99
 100                 if (empty($fields)) {
 101                         return true;
 102                 }
 103
 104                 return DBA::update('post-user-notification', $fields, ['uri-id' => $uri_id, 'uid' => $uid], $insert_if_missing ? true : []);
 105         }
 106
 107         /**
 108          * Delete a row from the post-user-notification table
 109          *
 110          * @param array $conditions  Field condition(s)
 111          * @param array $options     - cascade: If true we delete records in other tables that depend on the one we're deleting through
 112          *                           relations (default: true)
 113          *
 114          * @return boolean was the deletion successful?
 115          * @throws Exception
 116          */
 117         public static function delete(array $conditions, array $options = []): bool
 118         {
 119                 return DBA::delete('post-user-notification', $conditions, $options);
 120         }
 121
 122         /**
 123          * Checks an item for notifications and sets the "notification-type" field
 124          *
 125          * @ToDo:
 126          * - Check for mentions in posts with "uid=0" where the user hadn't interacted before
 127          *
 128          * @param int $uri_id URI ID
 129          * @param int $uid    user ID
 130          * @throws Exception
 131          */
 132         public static function setNotification(int $uri_id, int $uid)
 133         {
 134                 $fields = ['id', 'uri-id', 'parent-uri-id', 'uid', 'body', 'parent', 'gravity', 'vid', 'gravity',
 135                            'private', 'contact-id', 'thr-parent', 'thr-parent-id', 'parent-uri-id', 'parent-uri', 'author-id', 'verb'];
 136                 $item   = Post::selectFirst($fields, ['uri-id' => $uri_id, 'uid' => $uid, 'origin' => false]);
 137                 if (!DBA::isResult($item)) {
 138                         return;
 139                 }
 140
 141                 // "Activity::FOLLOW" is an automated activity, so we ignore it here
 142                 if ($item['verb'] == Activity::FOLLOW) {
 143                         return;
 144                 }
 145
 146                 if ($item['uid'] == 0) {
 147                         $uids = [];
 148                 } else {
 149                         // Always include the item user
 150                         $uids = [$item['uid']];
 151                 }
 152
 153                 // Add every user who participated so far in this thread
 154                 // This can only happen with participations on global items. (means: uid = 0)
 155                 $users = DBA::p("SELECT DISTINCT(`contact-uid`) AS `uid` FROM `post-user-view`
 156                         WHERE `contact-uid` != 0 AND `parent-uri-id` = ? AND `uid` = ?", $item['parent-uri-id'], $uid);
 157                 while ($user = DBA::fetch($users)) {
 158                         $uids[] = $user['uid'];
 159                 }
 160                 DBA::close($users);
 161
 162                 foreach (array_unique($uids) as $uid) {
 163                         self::setNotificationForUser($item, $uid);
 164                 }
 165         }
 166
 167         /**
 168          * Checks an item for notifications for the given user and sets the "notification-type" field
 169          *
 170          * @param array $item Item array
 171          * @param int   $uid  User ID
 172          * @throws HTTPException\InternalServerErrorException
 173          */
 174         private static function setNotificationForUser(array $item, int $uid)
 175         {
 176                 if (Post\ThreadUser::getIgnored($item['parent-uri-id'], $uid)) {
 177                         return;
 178                 }
 179
 180                 $user = User::getById($uid, ['account-type']);
 181                 if (in_array($user['account-type'], [User::ACCOUNT_TYPE_COMMUNITY, User::ACCOUNT_TYPE_RELAY])) {
 182                         return;
 183                 }
 184
 185                 $notification_type = self::TYPE_NONE;
 186
 187                 if (self::checkShared($item, $uid)) {
 188                         $notification_type = $notification_type | self::TYPE_SHARED;
 189                         self::insertNotificationByItem(self::TYPE_SHARED, $uid, $item);
 190                         $notified = true;
 191                 } else {
 192                         $notified = false;
 193                 }
 194
 195                 $profiles = self::getProfileForUser($uid);
 196
 197                 // Fetch all contacts for the given profiles
 198                 $contacts = [];
 199
 200                 $ret = DBA::select('contact', ['id'], ['uid' => 0, 'nurl' => $profiles]);
 201                 while ($contact = DBA::fetch($ret)) {
 202                         $contacts[] = $contact['id'];
 203                 }
 204                 DBA::close($ret);
 205
 206                 // Don't create notifications for user's posts
 207                 if (in_array($item['author-id'], $contacts)) {
 208                         return;
 209                 }
 210
 211                 if (self::checkExplicitMention($item, $profiles)) {
 212                         $notification_type = $notification_type | self::TYPE_EXPLICIT_TAGGED;
 213                         if (!$notified) {
 214                                 self::insertNotificationByItem(self::TYPE_EXPLICIT_TAGGED, $uid, $item);
 215                                 $notified = true;
 216                         }
 217                 }
 218
 219                 if (self::checkImplicitMention($item, $profiles)) {
 220                         $notification_type = $notification_type | self::TYPE_IMPLICIT_TAGGED;
 221                         if (!$notified) {
 222                                 self::insertNotificationByItem(self::TYPE_IMPLICIT_TAGGED, $uid, $item);
 223                                 $notified = true;
 224                         }
 225                 }
 226
 227                 if (self::checkDirectComment($item, $contacts)) {
 228                         $notification_type = $notification_type | self::TYPE_DIRECT_COMMENT;
 229                         if (!$notified) {
 230                                 self::insertNotificationByItem(self::TYPE_DIRECT_COMMENT, $uid, $item);
 231                                 $notified = true;
 232                         }
 233                 }
 234
 235                 if (self::checkDirectCommentedThread($item, $contacts)) {
 236                         $notification_type = $notification_type | self::TYPE_DIRECT_THREAD_COMMENT;
 237                         if (!$notified) {
 238                                 self::insertNotificationByItem(self::TYPE_DIRECT_THREAD_COMMENT, $uid, $item);
 239                                 $notified = true;
 240                         }
 241                 }
 242
 243                 if (self::checkCommentedThread($item, $contacts)) {
 244                         $notification_type = $notification_type | self::TYPE_THREAD_COMMENT;
 245                         if (!$notified) {
 246                                 self::insertNotificationByItem(self::TYPE_THREAD_COMMENT, $uid, $item);
 247                                 $notified = true;
 248                         }
 249                 }
 250
 251                 if (self::checkCommentedParticipation($item, $contacts)) {
 252                         $notification_type = $notification_type | self::TYPE_COMMENT_PARTICIPATION;
 253                         if (!$notified) {
 254                                 self::insertNotificationByItem(self::TYPE_COMMENT_PARTICIPATION, $uid, $item);
 255                                 $notified = true;
 256                         }
 257                 }
 258
 259                 if (self::checkActivityParticipation($item, $contacts)) {
 260                         $notification_type = $notification_type | self::TYPE_ACTIVITY_PARTICIPATION;
 261                         if (!$notified) {
 262                                 self::insertNotificationByItem(self::TYPE_ACTIVITY_PARTICIPATION, $uid, $item);
 263                         }
 264                 }
 265
 266                 if (empty($notification_type)) {
 267                         return;
 268                 }
 269
 270                 // Only create notifications for posts and comments, not for activities
 271                 if (($item['gravity'] == GRAVITY_ACTIVITY) && ($item['verb'] != Activity::ANNOUNCE)) {
 272                         return;
 273                 }
 274
 275                 Logger::info('Set notification', ['uri-id' => $item['uri-id'], 'uid' => $uid, 'notification-type' => $notification_type]);
 276
 277                 $fields = ['notification-type' => $notification_type];
 278                 Post\User::update($item['uri-id'], $uid, $fields);
 279                 self::update($item['uri-id'], $uid, $fields, true);
 280         }
 281
 282         /**
 283          * Add a notification entry for a given item array
 284          *
 285          * @param int   $type User notification type
 286          * @param int   $uid  User ID
 287          * @param array $item Item array
 288          * @return void
 289          * @throws Exception
 290          */
 291         private static function insertNotificationByItem(int $type, int $uid, array $item): void
 292         {
 293                 if (($item['verb'] != Activity::ANNOUNCE) && ($item['gravity'] == GRAVITY_ACTIVITY) &&
 294                         !in_array($type, [self::TYPE_DIRECT_COMMENT, self::TYPE_DIRECT_THREAD_COMMENT])) {
 295                         // Activities are only stored when performed on the user's post or comment
 296                         return;
 297                 }
 298
 299                 $notification = (new Notifications\Factory\Notification(DI::logger()))->createForUser(
 300                         $uid,
 301                         $item['vid'],
 302                         $type,
 303                         $item['author-id'],
 304                         $item['gravity'] == GRAVITY_ACTIVITY ? $item['thr-parent-id'] : $item['uri-id'],
 305                         $item['parent-uri-id']
 306                 );
 307
 308                 try {
 309                         $notification = DI::notification()->save($notification);
 310                         Subscription::pushByNotification($notification);
 311                 } catch (Exception $e) {
 312
 313                 }
 314         }
 315
 316         /**
 317          * Add a notification entry
 318          *
 319          * @param int    $actor Contact ID of the actor
 320          * @param string $verb  One of the Activity verb constant values
 321          * @param int    $uid   User ID
 322          * @return boolean
 323          * @throws Exception
 324          */
 325         public static function insertNotification(int $actor, string $verb, int $uid): bool
 326         {
 327                 $notification = (new Notifications\Factory\Notification(DI::logger()))->createForRelationship(
 328                         $uid,
 329                         $actor,
 330                         $verb
 331                 );
 332                 try {
 333                         $notification = DI::notification()->save($notification);
 334                         Subscription::pushByNotification($notification);
 335                         return true;
 336                 } catch (Exception $e) {
 337                         return false;
 338                 }
 339         }
 340
 341         /**
 342          * Fetch all profiles (contact URL) of a given user
 343          *
 344          * @param int $uid User ID
 345          *
 346          * @return array Profile links
 347          * @throws HTTPException\InternalServerErrorException
 348          */
 349         private static function getProfileForUser(int $uid): array
 350         {
 351                 $notification_data = ['uid' => $uid, 'profiles' => []];
 352                 Hook::callAll('check_item_notification', $notification_data);
 353
 354                 $profiles = $notification_data['profiles'];
 355
 356                 $user = DBA::selectFirst('user', ['nickname'], ['uid' => $uid]);
 357                 if (!DBA::isResult($user)) {
 358                         return [];
 359                 }
 360
 361                 $owner = DBA::selectFirst('contact', ['url', 'alias'], ['self' => true, 'uid' => $uid]);
 362                 if (!DBA::isResult($owner)) {
 363                         return [];
 364                 }
 365
 366                 // This is our regular URL format
 367                 $profiles[] = $owner['url'];
 368
 369                 // Now the alias
 370                 $profiles[] = $owner['alias'];
 371
 372                 // Notifications from Diaspora often have a URL in the Diaspora format
 373                 $profiles[] = DI::baseUrl() . '/u/' . $user['nickname'];
 374
 375                 // Validate and add profile links
 376                 foreach ($profiles as $key => $profile) {
 377                         // Check for invalid profile urls (without scheme, host or path) and remove them
 378                         if (empty(parse_url($profile, PHP_URL_SCHEME)) || empty(parse_url($profile, PHP_URL_HOST)) || empty(parse_url($profile, PHP_URL_PATH))) {
 379                                 unset($profiles[$key]);
 380                                 continue;
 381                         }
 382
 383                         // Add the normalized form
 384                         $profile    = Strings::normaliseLink($profile);
 385                         $profiles[] = $profile;
 386
 387                         // Add the SSL form
 388                         $profile    = str_replace('http://', 'https://', $profile);
 389                         $profiles[] = $profile;
 390                 }
 391
 392                 return array_unique($profiles);
 393         }
 394
 395         /**
 396          * Check for a "shared" notification for every new post of contacts from the given user
 397          *
 398          * @param array $item
 399          * @param int   $uid User ID
 400          * @return bool A contact had shared something
 401          * @throws Exception
 402          */
 403         private static function checkShared(array $item, int $uid): bool
 404         {
 405                 // Only check on original posts and reshare ("announce") activities, otherwise return
 406                 if (($item['gravity'] != GRAVITY_PARENT) && ($item['verb'] != Activity::ANNOUNCE)) {
 407                         return false;
 408                 }
 409
 410                 // Check if the contact posted or shared something directly
 411                 if (DBA::exists('contact', ['id' => $item['contact-id'], 'notify_new_posts' => true])) {
 412                         return true;
 413                 }
 414
 415                 return false;
 416         }
 417
 418         /**
 419          * Check for an implicit mention (only in tags, not in body) of the given user
 420          *
 421          * @param array $item
 422          * @param array $profiles Profile links
 423          * @return bool The user is mentioned
 424          * @throws Exception
 425          */
 426         private static function checkImplicitMention(array $item, array $profiles): bool
 427         {
 428                 $mentions = Tag::getByURIId($item['uri-id'], [Tag::IMPLICIT_MENTION]);
 429                 foreach ($mentions as $mention) {
 430                         foreach ($profiles as $profile) {
 431                                 if (Strings::compareLink($profile, $mention['url'])) {
 432                                         return true;
 433                                 }
 434                         }
 435                 }
 436
 437                 return false;
 438         }
 439
 440         /**
 441          * Check for an explicit mention (tag and body) of the given user
 442          *
 443          * @param array $item
 444          * @param array $profiles Profile links
 445          * @return bool The user is mentioned
 446          * @throws Exception
 447          */
 448         private static function checkExplicitMention(array $item, array $profiles): bool
 449         {
 450                 $mentions = Tag::getByURIId($item['uri-id'], [Tag::MENTION, Tag::EXCLUSIVE_MENTION]);
 451                 foreach ($mentions as $mention) {
 452                         foreach ($profiles as $profile) {
 453                                 if (Strings::compareLink($profile, $mention['url'])) {
 454                                         return true;
 455                                 }
 456                         }
 457                 }
 458
 459                 return false;
 460         }
 461
 462         /**
 463          * Check if the given user had created this thread
 464          *
 465          * @param array $item
 466          * @param array $contacts Array of contact IDs
 467          * @return bool The user had created this thread
 468          * @throws Exception
 469          */
 470         private static function checkCommentedThread(array $item, array $contacts): bool
 471         {
 472                 $condition = ['parent' => $item['parent'], 'author-id' => $contacts, 'deleted' => false, 'gravity' => GRAVITY_PARENT];
 473                 return Post::exists($condition);
 474         }
 475
 476         /**
 477          * Check for a direct comment to a post of the given user
 478          *
 479          * @param array $item
 480          * @param array $contacts Array of contact IDs
 481          * @return bool The item is a direct comment to a user comment
 482          * @throws Exception
 483          */
 484         private static function checkDirectComment(array $item, array $contacts): bool
 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          *
 493          * @param array $item
 494          * @param array $contacts Array of contact IDs
 495          * @return bool The user had created this thread
 496          * @throws Exception
 497          */
 498         private static function checkDirectCommentedThread(array $item, array $contacts): bool
 499         {
 500                 $condition = ['uri' => $item['thr-parent'], 'uid' => $item['uid'], 'author-id' => $contacts, 'deleted' => false, 'gravity' => GRAVITY_PARENT];
 501                 return Post::exists($condition);
 502         }
 503
 504         /**
 505          *  Check if the user had commented in this thread
 506          *
 507          * @param array $item
 508          * @param array $contacts Array of contact IDs
 509          * @return bool The user had commented in the thread
 510          * @throws Exception
 511          */
 512         private static function checkCommentedParticipation(array $item, array $contacts): bool
 513         {
 514                 $condition = ['parent' => $item['parent'], 'author-id' => $contacts, 'deleted' => false, 'gravity' => GRAVITY_COMMENT];
 515                 return Post::exists($condition);
 516         }
 517
 518         /**
 519          * Check if the user had interacted in this thread (Like, Dislike, ...)
 520          *
 521          * @param array $item
 522          * @param array $contacts Array of contact IDs
 523          * @return bool The user had interacted in the thread
 524          * @throws Exception
 525          */
 526         private static function checkActivityParticipation(array $item, array $contacts): bool
 527         {
 528                 $condition = ['parent' => $item['parent'], 'author-id' => $contacts, 'deleted' => false, 'gravity' => GRAVITY_ACTIVITY];
 529                 return Post::exists($condition);
 530         }
 531 }