289 lines
10 KiB
PHP
289 lines
10 KiB
PHP
<?php declare(strict_types=1);
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abstract class PrivateImageConfig
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{
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const VERSION = "ext_private_image_version";
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const USER_SET_DEFAULT = "user_private_image_set_default";
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const USER_VIEW_DEFAULT = "user_private_image_view_default";
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}
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class PrivateImage extends Extension
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{
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/** @var PrivateImageTheme */
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protected ?Themelet $theme;
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public function onInitExt(InitExtEvent $event)
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{
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Image::$bool_props[] = "private ";
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}
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public function onInitUserConfig(InitUserConfigEvent $event)
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{
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$event->user_config->set_default_bool(PrivateImageConfig::USER_SET_DEFAULT, false);
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$event->user_config->set_default_bool(PrivateImageConfig::USER_VIEW_DEFAULT, true);
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}
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public function onUserOptionsBuilding(UserOptionsBuildingEvent $event)
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{
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$sb = $event->panel->create_new_block("Private Posts");
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$sb->start_table();
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$sb->add_bool_option(PrivateImageConfig::USER_SET_DEFAULT, "Mark posts private by default", true);
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$sb->add_bool_option(PrivateImageConfig::USER_VIEW_DEFAULT, "View private posts by default", true);
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$sb->end_table();
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}
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public function onPageRequest(PageRequestEvent $event)
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{
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global $page, $user, $user_config;
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if ($event->page_matches("privatize_image") && $user->can(Permissions::SET_PRIVATE_IMAGE)) {
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// Try to get the image ID
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$image_id = int_escape($event->get_arg(0));
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if (empty($image_id)) {
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$image_id = isset($_POST['image_id']) ? $_POST['image_id'] : null;
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}
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if (empty($image_id)) {
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throw new SCoreException("Can not make image private: No valid Post ID given.");
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}
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$image = Image::by_id($image_id);
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if ($image==null) {
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throw new SCoreException("Post not found.");
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}
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if ($image->owner_id!=$user->can(Permissions::SET_OTHERS_PRIVATE_IMAGES)) {
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throw new SCoreException("Cannot set another user's image to private.");
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}
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self::privatize_image($image_id);
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$page->set_mode(PageMode::REDIRECT);
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$page->set_redirect(make_link("post/view/" . $image_id));
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}
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if ($event->page_matches("publicize_image")) {
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// Try to get the image ID
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$image_id = int_escape($event->get_arg(0));
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if (empty($image_id)) {
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$image_id = isset($_POST['image_id']) ? $_POST['image_id'] : null;
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}
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if (empty($image_id)) {
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throw new SCoreException("Can not make image public: No valid Post ID given.");
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}
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$image = Image::by_id($image_id);
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if ($image==null) {
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throw new SCoreException("Post not found.");
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}
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if ($image->owner_id!=$user->can(Permissions::SET_OTHERS_PRIVATE_IMAGES)) {
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throw new SCoreException("Cannot set another user's image to private.");
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}
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self::publicize_image($image_id);
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$page->set_mode(PageMode::REDIRECT);
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$page->set_redirect(make_link("post/view/".$image_id));
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}
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if ($event->page_matches("user_admin")) {
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if (!$user->check_auth_token()) {
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return;
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}
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switch ($event->get_arg(0)) {
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case "private_image":
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if (!array_key_exists("id", $_POST) || empty($_POST["id"])) {
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return;
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}
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$id = intval($_POST["id"]);
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if ($id != $user->id) {
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throw new SCoreException("Cannot change another user's settings");
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}
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$set_default = array_key_exists("set_default", $_POST);
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$view_default = array_key_exists("view_default", $_POST);
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$user_config->set_bool(PrivateImageConfig::USER_SET_DEFAULT, $set_default);
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$user_config->set_bool(PrivateImageConfig::USER_VIEW_DEFAULT, $view_default);
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$page->set_mode(PageMode::REDIRECT);
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$page->set_redirect(make_link("user"));
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break;
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}
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}
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}
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public function onDisplayingImage(DisplayingImageEvent $event)
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{
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global $user, $page;
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if ($event->image->private===true && $event->image->owner_id!=$user->id && !$user->can(Permissions::SET_OTHERS_PRIVATE_IMAGES)) {
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$page->set_mode(PageMode::REDIRECT);
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$page->set_redirect(make_link("post/list"));
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}
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}
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const SEARCH_REGEXP = "/^private:(yes|no|any)/";
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public function onSearchTermParse(SearchTermParseEvent $event)
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{
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global $user, $user_config;
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$show_private = $user_config->get_bool(PrivateImageConfig::USER_VIEW_DEFAULT);
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$matches = [];
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if (is_null($event->term) && $this->no_private_query($event->context)) {
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if ($show_private) {
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$event->add_querylet(
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new Querylet(
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"private != :true OR owner_id = :private_owner_id",
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["private_owner_id"=>$user->id, "true"=>true]
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)
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);
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} else {
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$event->add_querylet(
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new Querylet("private != :true", ["true"=>true])
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);
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}
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}
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if (is_null($event->term)) {
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return;
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}
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if (preg_match(self::SEARCH_REGEXP, strtolower($event->term), $matches)) {
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$params = [];
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$query = "";
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switch ($matches[1]) {
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case "no":
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$query .= "private != :true";
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$params["true"] = true;
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break;
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case "yes":
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$query .= "private = :true";
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$params["true"] = true;
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// Admins can view others private images, but they have to specify the user
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if (!$user->can(Permissions::SET_OTHERS_PRIVATE_IMAGES) ||
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!UserPage::has_user_query($event->context)) {
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$query .= " AND owner_id = :private_owner_id";
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$params["private_owner_id"] = $user->id;
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}
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break;
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case "any":
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$query .= "private != :true OR owner_id = :private_owner_id";
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$params["true"] = true;
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$params["private_owner_id"] = $user->id;
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break;
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}
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$event->add_querylet(new Querylet($query, $params));
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}
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}
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public function onHelpPageBuilding(HelpPageBuildingEvent $event)
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{
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if ($event->key===HelpPages::SEARCH) {
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$block = new Block();
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$block->header = "Private Posts";
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$block->body = $this->theme->get_help_html();
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$event->add_block($block);
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}
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}
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private function no_private_query(array $context): bool
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{
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foreach ($context as $term) {
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if (preg_match(self::SEARCH_REGEXP, $term)) {
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return false;
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}
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}
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return true;
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}
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public static function privatize_image($image_id)
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{
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global $database;
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$database->execute(
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"UPDATE images SET private = :true WHERE id = :id AND private = :false",
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["id"=>$image_id, "true"=>true, "false"=>false]
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);
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}
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public static function publicize_image($image_id)
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{
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global $database;
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$database->execute(
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"UPDATE images SET private = :false WHERE id = :id AND private = :true",
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["id"=>$image_id, "true"=>true, "false"=>false]
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);
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}
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public function onImageAdminBlockBuilding(ImageAdminBlockBuildingEvent $event)
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{
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global $user;
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if ($user->can(Permissions::SET_PRIVATE_IMAGE) && $user->id==$event->image->owner_id) {
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$event->add_part($this->theme->get_image_admin_html($event->image));
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}
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}
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public function onImageAddition(ImageAdditionEvent $event)
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{
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global $user_config;
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if ($user_config->get_bool(PrivateImageConfig::USER_SET_DEFAULT)) {
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self::privatize_image($event->image->id);
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}
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}
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public function onBulkActionBlockBuilding(BulkActionBlockBuildingEvent $event)
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{
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global $user;
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if ($user->can(Permissions::SET_PRIVATE_IMAGE)) {
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$event->add_action("bulk_privatize_image", "Make Private");
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$event->add_action("bulk_publicize_image", "Make Public");
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}
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}
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public function onBulkAction(BulkActionEvent $event)
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{
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global $page, $user;
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switch ($event->action) {
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case "bulk_privatize_image":
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if ($user->can(Permissions::SET_PRIVATE_IMAGE)) {
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$total = 0;
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foreach ($event->items as $image) {
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if ($image->owner_id==$user->id ||
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$user->can(Permissions::SET_OTHERS_PRIVATE_IMAGES)) {
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self::privatize_image($image->id);
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$total++;
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}
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}
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$page->flash("Made $total items private");
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}
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break;
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case "bulk_publicize_image":
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$total = 0;
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foreach ($event->items as $image) {
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if ($image->owner_id==$user->id ||
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$user->can(Permissions::SET_OTHERS_PRIVATE_IMAGES)) {
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self::publicize_image($image->id);
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$total++;
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}
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}
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$page->flash("Made $total items public");
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break;
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}
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}
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public function onDatabaseUpgrade(DatabaseUpgradeEvent $event)
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{
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global $database;
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if ($this->get_version(PrivateImageConfig::VERSION) < 1) {
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$database->execute("ALTER TABLE images ADD COLUMN private BOOLEAN NOT NULL DEFAULT FALSE");
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$database->execute("CREATE INDEX images_private_idx ON images(private)");
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$this->set_version(PrivateImageConfig::VERSION, 2);
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}
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if ($this->get_version(PrivateImageConfig::VERSION) < 2) {
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$database->standardise_boolean("images", "private");
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$this->set_version(PrivateImageConfig::VERSION, 2);
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}
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}
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}
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