Basic outline for how the blacklist tag done

Images have a tag array associated, take said tag array and make it a var. Then take a user's blacklist (I wonder if the user class has an array space) and make it a var. run array_intersect on both those vars. if anything is in returned array, return true. else return false. access denied and censor images in other areas if tags appear in array

ext/blacklist/info.php

@@ -0,0 +1,16 @@
+<?php
+
+declare(strict_types=1);
+
+class Blacklist extends ExtensionInfo
+{
+    public const KEY = "blacklist";
+
+    public string $key = self::KEY;
+    public string $name = "Blacklist";
+    public string $url = self::SHIMMIE_URL;
+    public array $authors = self::SHISH_AUTHOR;
+    public string $license = self::LICENSE_GPLV2;
+    public string $description = "Allow users to blacklist certain tags from being viewed";
+    public ?string $documentation = "Hides the sinful, shameful, or otherwise undesirable tags from innocent eyes";
+}

ext/blacklist/main.php

@@ -0,0 +1,45 @@
+<?php 
+declare(strict_types=1);
+
+private function check_blacklist(Image $image): bool
+{
+
+    //Images have a tag array associated, take said tag array and make it a var
+    //Then take a user's blacklist (I wonder if the user class has an array space) and make it a var
+    //run array_intersect on it
+    //if anything is in said array, return true
+    //else return false
+    //access denied and censor images in other areas
+    global $user, $config;
+
+    if ($config->get_bool(ApprovalConfig::IMAGES) && $image->approved===false && !$user->can(Permissions::APPROVE_IMAGE) {
+        return false;
+    }
+    return true;
+}
+
+
+public function onImageDownloading(ImageDownloadingEvent $event)
+{
+    /**
+     * Deny images upon insufficient permissions.
+     **/
+    if (!$this->check_permissions($event->image)) {
+        throw new SCoreException("Access denied");
+    }
+}
+
+
+public function onDisplayingImage(DisplayingImageEvent $event)
+{
+    global $page;
+
+    if (!$this->check_permissions(($event->image))) {
+        $page->set_mode(PageMode::REDIRECT);
+        $page->set_redirect(make_link("post/list"));
+    }
+}
+
+
+
+

ext/blacklist/test.php

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+<?php
+
+declare(strict_types=1);
+class RatingsTest extends ShimmiePHPUnitTestCase
+{
+    public function testRatingSafe()
+    {
+        $this->log_in_as_user();
+        $image_id = $this->post_image("tests/pbx_screenshot.jpg", "pbx");
+        $image = Image::by_id($image_id);
+        send_event(new RatingSetEvent($image, "s"));
+
+        # search for it in various ways
+        $this->assert_search_results(["rating=Safe"], [$image_id]);
+        $this->assert_search_results(["rating=s"], [$image_id]);
+        $this->assert_search_results(["rating=sqe"], [$image_id]);
+
+        # test that search by tag still works
+        $this->assert_search_results(["pbx"], [$image_id]);
+
+        # searching for a different rating should return nothing
+        $this->assert_search_results(["rating=q"], []);
+    }
+
+    public function testRatingExplicit()
+    {
+        global $config;
+        $config->set_array("ext_rating_anonymous_privs", ["s", "q"]);
+        $this->log_in_as_user();
+        $image_id = $this->post_image("tests/pbx_screenshot.jpg", "pbx");
+        $image = Image::by_id($image_id);
+        send_event(new RatingSetEvent($image, "e"));
+
+        # the explicit image shouldn't show up in anon's searches
+        $this->log_out();
+        $this->assert_search_results(["pbx"], []);
+    }
+}

ext/blacklist/theme.php

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+<?php
+declare(strict_types=1);