src/Model/UserItem.php

   1 <?php
   2
   3 /**
   4  * @file src/Model/UserItem.php
   5  */
   6
   7 namespace Friendica\Model;
   8
   9 use Friendica\Core\Logger;
  10 use Friendica\Core\Hook;
  11 use Friendica\Database\DBA;
  12 use Friendica\DI;
  13 use Friendica\Util\Strings;
  14
  15 class UserItem
  16 {
  17         const NOTIF_NONE = 0;
  18         const NOTIF_EXPLICIT_TAGGED = 1;
  19         const NOTIF_IMPLICIT_TAGGED = 2;
  20         const NOTIF_THREAD_COMMENT = 4;
  21         const NOTIF_DIRECT_COMMENT = 8;
  22         const NOTIF_COMMENT_PARTICIPATION = 16;
  23         const NOTIF_ACTIVITY_PARTICIPATION = 32;
  24         const NOTIF_SHARED = 128;
  25
  26         /**
  27          * Checks an item for notifications and sets the "notification-type" field
  28          *
  29          * @param array $item The message array that is checked for notifications
  30          * @param int   $uid  User ID
  31          */
  32         public static function setNotification($iid, $uid)
  33         {
  34                 $fields = ['id', 'body', 'origin', 'parent', 'gravity', 'tag', 'contact-id',
  35                         'thr-parent', 'parent-uri', 'mention'];
  36                 $item = Item::selectFirst($fields, ['id' => $iid]);
  37
  38                 // Don't check for own posts
  39                 if ($item['origin'] || empty($uid)) {
  40                         return;
  41                 }
  42
  43                 $fields = ['ignored', 'mention'];
  44                 $thread = Item::selectFirstThreadForUser($uid, $fields, ['iid' => $item['parent'], 'deleted' => false]);
  45                 if ($thread['ignored']) {
  46                         return;
  47                 }
  48
  49                 $notification_type = self::NOTIF_NONE;
  50
  51                 if (self::checkShared($item, $uid)) {
  52                         $notification_type = $notification_type | self::NOTIF_SHARED;
  53                 }
  54
  55                 $profiles = self::getProfileForUser($uid);
  56
  57                 if (self::checkImplicitMention($item, $uid, $profiles)) {
  58                         $notification_type = $notification_type | self::NOTIF_IMPLICIT_TAGGED;
  59                 }
  60
  61                 if (self::checkExplicitMention($item, $uid, $profiles)) {
  62                         $notification_type = $notification_type | self::NOTIF_EXPLICIT_TAGGED;
  63                 }
  64
  65                 $contacts = [];
  66                 $ret = DBA::select('contact', ['id'], ['uid' => 0, 'nurl' => $profiles]);
  67                 while ($contact = DBA::fetch($ret)) {
  68                         $contacts[] = $contact['id'];
  69                 }
  70                 DBA::close($ret);
  71
  72                 if (self::checkCommentedThread($item, $uid, $contacts)) {
  73                         $notification_type = $notification_type | self::NOTIF_THREAD_COMMENT;
  74                 }
  75
  76                 if (self::checkDirectComment($item, $uid, $contacts, $thread)) {
  77                         $notification_type = $notification_type | self::NOTIF_DIRECT_COMMENT;
  78                 }
  79
  80                 if (self::checkCommentedParticipation($item, $uid, $contacts)) {
  81                         $notification_type = $notification_type | self::NOTIF_COMMENT_PARTICIPATION;
  82                 }
  83
  84                 if (self::checkActivityParticipation($item, $uid, $contacts)) {
  85                         $notification_type = $notification_type | self::NOTIF_ACTIVITY_PARTICIPATION;
  86                 }
  87
  88                 if (empty($notification_type)) {
  89                         return;
  90                 }
  91
  92                 Logger::info('Set notification', ['iid' => $item['id'], 'uid' => $uid, 'notification-type' => $notification_type]);
  93
  94                 DBA::update('user-item', ['notification-type' => $notification_type], ['iid' => $item['id'], 'uid' => $uid], true);
  95         }
  96
  97         // Fetch all contacts for the given profiles
  98         private static function getProfileForUser($uid)
  99         {
 100                 $notification_data = ['uid' => $uid, 'profiles' => []];
 101                 Hook::callAll('check_item_notification', $notification_data);
 102
 103                 $profiles = $notification_data['profiles'];
 104
 105                 $fields = ['nickname'];
 106                 $user = DBA::selectFirst('user', $fields, ['uid' => $uid]);
 107                 if (!DBA::isResult($user)) {
 108                         return false;
 109                 }
 110
 111                 $owner = DBA::selectFirst('contact', ['url'], ['self' => true, 'uid' => $uid]);
 112                 if (!DBA::isResult($owner)) {
 113                         return false;
 114                 }
 115
 116                 // This is our regular URL format
 117                 $profiles[] = $owner['url'];
 118
 119                 // Notifications from Diaspora are often with an URL in the Diaspora format
 120                 $profiles[] = DI::baseUrl().'/u/'.$user['nickname'];
 121
 122                 $profiles2 = [];
 123
 124                 foreach ($profiles AS $profile) {
 125                         // Check for invalid profile urls. 13 should be the shortest possible profile length:
 126                         // http://a.bc/d
 127                         // Additionally check for invalid urls that would return the normalised value "http:"
 128                         if ((strlen($profile) >= 13) && (Strings::normaliseLink($profile) != 'http:')) {
 129                                 if (!in_array($profile, $profiles2))
 130                                         $profiles2[] = $profile;
 131
 132                                 $profile = Strings::normaliseLink($profile);
 133                                 if (!in_array($profile, $profiles2))
 134                                         $profiles2[] = $profile;
 135
 136                                 $profile = str_replace('http://', 'https://', $profile);
 137                                 if (!in_array($profile, $profiles2))
 138                                         $profiles2[] = $profile;
 139                         }
 140                 }
 141
 142                 return $profiles2;
 143         }
 144
 145         private static function checkShared($item, $uid)
 146         {
 147                 if ($item['gravity'] != GRAVITY_PARENT) {
 148                         return false;
 149                 }
 150
 151                 // Send a notification for every new post?
 152                 // Either the contact had posted something directly
 153                 if (DBA::exists('contact', ['id' => $item['contact-id'], 'notify_new_posts' => true])) {
 154                         return true;
 155                 }
 156
 157                 // Or the contact is a mentioned forum
 158                 $tags = DBA::select('term', ['url'], ['otype' => TERM_OBJ_POST, 'oid' => $item['id'], 'type' => TERM_MENTION, 'uid' => $uid]);
 159                 while ($tag = DBA::fetch($tags)) {
 160                         $condition = ['nurl' => Strings::normaliseLink($tag['url']), 'uid' => $uid, 'notify_new_posts' => true, 'contact-type' => Contact::TYPE_COMMUNITY];
 161                         if (DBA::exists('contact', $condition)) {
 162                                 return true;
 163                         }
 164                 }
 165
 166                 return false;
 167         }
 168
 169         // Is the user mentioned in this post?
 170         private static function checkImplicitMention($item, $uid, $profiles)
 171         {
 172                 foreach ($profiles AS $profile) {
 173                         if (strpos($item['tag'], '='.$profile.']') || strpos($item['body'], '='.$profile.']'))
 174                                 return true;
 175                 }
 176
 177                 return false;
 178         }
 179
 180         private static function checkExplicitMention($item, $uid, $profiles)
 181         {
 182                 foreach ($profiles AS $profile) {
 183                         if (strpos($item['tag'], '='.$profile.']') || strpos($item['body'], '='.$profile.']'))
 184                                 return !(strpos($item['body'], $profile) === false);
 185                 }
 186
 187                 return false;
 188         }
 189
 190         // Is it a post that the user had started?
 191         private static function checkCommentedThread($item, $uid, $contacts)
 192         {
 193                 // Additional check for connector posts
 194                 $condition = ['parent' => $item['parent'], 'author-id' => $contacts, 'deleted' => false, 'gravity' => GRAVITY_PARENT];
 195                 return Item::exists($condition);
 196         }
 197
 198         private static function checkDirectComment($item, $uid, $contacts)
 199         {
 200                 // Additional check for connector posts
 201                 $condition = ['uri' => $item['thr-parent'], 'uid' => [0, $uid], 'author-id' => $contacts, 'deleted' => false, 'gravity' => GRAVITY_COMMENT];
 202                 return Item::exists($condition);
 203         }
 204
 205         // Check for participation of one of our contacts in the thread
 206         private static function checkCommentedParticipation($item, $uid, $contacts)
 207         {
 208                 $condition = ['parent' => $item['parent'], 'author-id' => $contacts, 'deleted' => false, 'gravity' => GRAVITY_COMMENT];
 209                 return Item::exists($condition);
 210         }
 211
 212         private static function checkActivityParticipation($item, $uid, $contacts)
 213         {
 214                 $condition = ['parent' => $item['parent'], 'author-id' => $contacts, 'deleted' => false, 'gravity' => GRAVITY_ACTIVITY];
 215                 return Item::exists($condition);
 216         }
 217 }