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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Extension\Newsletter; |
| 4 | |
| 5 | use MediaWiki\Extension\Notifications\Model\Event; |
| 6 | use MediaWiki\Permissions\Authority; |
| 7 | use MediaWiki\Status\Status; |
| 8 | use MediaWiki\User\User; |
| 9 | use MediaWiki\User\UserIdentity; |
| 10 | |
| 11 | /** |
| 12 | * Class representing a newsletter |
| 13 | * |
| 14 | * @license GPL-2.0-or-later |
| 15 | * @author Addshore |
| 16 | * @author Glaisher |
| 17 | */ |
| 18 | class Newsletter { |
| 19 | |
| 20 | public const NEWSLETTER_PUBLISHERS_ADDED = 'added'; |
| 21 | public const NEWSLETTER_PUBLISHERS_REMOVED = 'removed'; |
| 22 | |
| 23 | /** |
| 24 | * @var int |
| 25 | */ |
| 26 | private $id; |
| 27 | |
| 28 | /** |
| 29 | * @var string |
| 30 | */ |
| 31 | private $name; |
| 32 | |
| 33 | /** |
| 34 | * @var string |
| 35 | */ |
| 36 | private $description; |
| 37 | |
| 38 | /** |
| 39 | * @var int |
| 40 | */ |
| 41 | private $pageId; |
| 42 | |
| 43 | /** |
| 44 | * @var array |
| 45 | */ |
| 46 | private $publishers; |
| 47 | |
| 48 | /** |
| 49 | * @var array |
| 50 | */ |
| 51 | private $subscribers; |
| 52 | |
| 53 | /** |
| 54 | * @param int|null $id |
| 55 | * @param string $name |
| 56 | * @param string $description |
| 57 | * @param int $pageId |
| 58 | */ |
| 59 | public function __construct( $id, $name, $description, $pageId ) { |
| 60 | $this->id = (int)$id; |
| 61 | $this->name = $name; |
| 62 | $this->description = $description; |
| 63 | $this->pageId = (int)$pageId; |
| 64 | } |
| 65 | |
| 66 | /** |
| 67 | * @param int $id |
| 68 | * |
| 69 | * @return Newsletter|null null if no newsletter exists with the provided id |
| 70 | */ |
| 71 | public static function newFromID( $id ) { |
| 72 | return NewsletterStore::getDefaultInstance() |
| 73 | ->getNewsletter( $id ); |
| 74 | } |
| 75 | |
| 76 | /** |
| 77 | * Fetch a new newsletter instance from given name |
| 78 | * |
| 79 | * @param string $name |
| 80 | * @param bool $active |
| 81 | * @return Newsletter|null |
| 82 | */ |
| 83 | public static function newFromName( $name, $active = true ) { |
| 84 | return NewsletterStore::getDefaultInstance()->getNewsletterFromName( $name, $active ); |
| 85 | } |
| 86 | |
| 87 | /** |
| 88 | * @return int|null |
| 89 | */ |
| 90 | public function getId() { |
| 91 | return $this->id; |
| 92 | } |
| 93 | |
| 94 | /** |
| 95 | * @param int $id |
| 96 | */ |
| 97 | public function setId( $id ) { |
| 98 | $this->id = $id; |
| 99 | } |
| 100 | |
| 101 | /** |
| 102 | * @return string |
| 103 | */ |
| 104 | public function getName() { |
| 105 | return $this->name; |
| 106 | } |
| 107 | |
| 108 | /** |
| 109 | * @return string |
| 110 | */ |
| 111 | public function getDescription() { |
| 112 | return $this->description; |
| 113 | } |
| 114 | |
| 115 | /** |
| 116 | * @return int |
| 117 | */ |
| 118 | public function getPageId() { |
| 119 | return $this->pageId; |
| 120 | } |
| 121 | |
| 122 | /** |
| 123 | * @return array |
| 124 | */ |
| 125 | public function getSubscribers() { |
| 126 | $this->loadSubscribers(); |
| 127 | return $this->subscribers; |
| 128 | } |
| 129 | |
| 130 | /** |
| 131 | * @return int |
| 132 | */ |
| 133 | public function getSubscribersCount(): int { |
| 134 | return NewsletterStore::getDefaultInstance()->getNewsletterSubscribersCount( $this->id ); |
| 135 | } |
| 136 | |
| 137 | /** |
| 138 | * @return array |
| 139 | */ |
| 140 | public function getPublishers() { |
| 141 | $this->loadPublishers(); |
| 142 | return $this->publishers; |
| 143 | } |
| 144 | |
| 145 | /** |
| 146 | * @todo this is probably not scalable... |
| 147 | * |
| 148 | * @param UserIdentity $user |
| 149 | * |
| 150 | * @return bool |
| 151 | */ |
| 152 | public function isSubscribed( UserIdentity $user ) { |
| 153 | $this->loadSubscribers(); |
| 154 | return in_array( $user->getId(), $this->subscribers ); |
| 155 | } |
| 156 | |
| 157 | /** |
| 158 | * @param UserIdentity $user |
| 159 | * |
| 160 | * @return bool |
| 161 | */ |
| 162 | public function isPublisher( UserIdentity $user ) { |
| 163 | $this->loadPublishers(); |
| 164 | return in_array( $user->getId(), $this->publishers ); |
| 165 | } |
| 166 | |
| 167 | /** |
| 168 | * Load the publishers from the database if it has not been queried yet |
| 169 | */ |
| 170 | private function loadPublishers() { |
| 171 | if ( $this->publishers === null ) { |
| 172 | // Not queried yet so let's do it now |
| 173 | $this->publishers = NewsletterStore::getDefaultInstance() |
| 174 | ->getPublishersFromID( $this->id ); |
| 175 | } |
| 176 | } |
| 177 | |
| 178 | /** |
| 179 | * Load the subscribers from the database if it has not been queried yet |
| 180 | */ |
| 181 | private function loadSubscribers() { |
| 182 | if ( $this->subscribers === null ) { |
| 183 | // Not queried yet so let's do it now |
| 184 | $this->subscribers = NewsletterStore::getDefaultInstance() |
| 185 | ->getSubscribersFromID( $this->id ); |
| 186 | } |
| 187 | } |
| 188 | |
| 189 | /** |
| 190 | * Subscribe the specified user to this newsletter |
| 191 | * |
| 192 | * @param User $user |
| 193 | * |
| 194 | * @return Status |
| 195 | */ |
| 196 | public function subscribe( User $user ) { |
| 197 | if ( $user->isAnon() ) { |
| 198 | // IPs are not allowed to subscribe |
| 199 | return Status::newFatal( 'newsletter-subscribe-ip-notallowed' ); |
| 200 | } |
| 201 | |
| 202 | $store = NewsletterStore::getDefaultInstance(); |
| 203 | $store->addSubscription( $this, [ $user->getId() ] ); |
| 204 | return Status::newGood(); |
| 205 | } |
| 206 | |
| 207 | /** |
| 208 | * Unsubscribe the specified user from this newsletter |
| 209 | * |
| 210 | * @param User $user |
| 211 | * @return Status |
| 212 | */ |
| 213 | public function unsubscribe( User $user ) { |
| 214 | $store = NewsletterStore::getDefaultInstance(); |
| 215 | $store->removeSubscription( $this, [ $user->getId() ] ); |
| 216 | return Status::newGood(); |
| 217 | } |
| 218 | |
| 219 | /** |
| 220 | * Check whether the user is allowed to delete the newsletter. |
| 221 | * |
| 222 | * @param User $user |
| 223 | * |
| 224 | * @return bool |
| 225 | */ |
| 226 | public function canDelete( User $user ) { |
| 227 | return $this->isPublisher( $user ) || $user->isAllowed( 'newsletter-delete' ); |
| 228 | } |
| 229 | |
| 230 | /** |
| 231 | * Check whether the user is allowed to manage the newsletter. |
| 232 | * |
| 233 | * The user is allowed to manage a newsletter if the user is a publisher of |
| 234 | * the newsletter, or if the user has the newsletter-manage right. |
| 235 | * |
| 236 | * @param Authority $user |
| 237 | * |
| 238 | * @return bool |
| 239 | */ |
| 240 | public function canManage( Authority $user ) { |
| 241 | return $this->isPublisher( $user->getUser() ) || $user->isAllowed( 'newsletter-manage' ); |
| 242 | } |
| 243 | |
| 244 | /** |
| 245 | * Check whether the user is allowed to restore the newsletter. |
| 246 | * |
| 247 | * @param Authority $performer |
| 248 | * |
| 249 | * @return bool |
| 250 | */ |
| 251 | public function canRestore( Authority $performer ) { |
| 252 | return $this->isPublisher( $performer->getUser() ) || $performer->isAllowed( 'newsletter-restore' ); |
| 253 | } |
| 254 | |
| 255 | /** |
| 256 | * Notify new/removed publishers |
| 257 | * |
| 258 | * @param array $affectedUsers |
| 259 | * @param User $agent the user initiating the request |
| 260 | * @param string $event select between added/removed |
| 261 | */ |
| 262 | public function notifyPublishers( array $affectedUsers, User $agent, $event ) { |
| 263 | $notification = [ |
| 264 | 'extra' => [ |
| 265 | 'newsletter-name' => $this->getName(), |
| 266 | 'newsletter-id' => $this->getId() |
| 267 | ], |
| 268 | 'agent' => $agent |
| 269 | ]; |
| 270 | |
| 271 | if ( $event === self::NEWSLETTER_PUBLISHERS_ADDED ) { |
| 272 | $notification['type'] = 'newsletter-newpublisher'; |
| 273 | $notification['extra']['new-publishers-id'] = $affectedUsers; |
| 274 | } elseif ( $event === self::NEWSLETTER_PUBLISHERS_REMOVED ) { |
| 275 | $notification['type'] = 'newsletter-delpublisher'; |
| 276 | $notification['extra']['del-publishers-id'] = $affectedUsers; |
| 277 | } |
| 278 | Event::create( $notification ); |
| 279 | } |
| 280 | |
| 281 | } |