Tombstone support

ext/tombstones/info.php

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+<?php declare(strict_types=1);
+
+class TombstonesInfo extends ExtensionInfo
+{
+    public const KEY = "tombstones";
+
+    public $key = self::KEY;
+    public $name = "Tombstones";
+    public $url = self::SHIMMIE_URL;
+    public $authors = self::SHISH_AUTHOR;
+    public $license = self::LICENSE_GPLV2;
+    public $description = "Provide a marker listing some details about deleted posts";
+}

ext/tombstones/main.php

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+<?php declare(strict_types=1);
+
+use MicroCRUD\ActionColumn;
+use MicroCRUD\StringColumn;
+use MicroCRUD\DateColumn;
+use MicroCRUD\TextColumn;
+use MicroCRUD\Table;
+
+class TombstoneTable extends Table
+{
+    public function __construct(\FFSPHP\PDO $db)
+    {
+        parent::__construct($db);
+        $this->table = "tombstones";
+        $this->base_query = "SELECT * FROM tombstones";
+        $this->primary_key = "post_id";
+        $this->size = 100;
+        $this->limit = 1000000;
+        $this->set_columns([
+            new IntColumn("post_id", "Post"),
+            new StringColumn("hash"),
+            new DateColumn("date", "Date"),
+            new TextColumn("message", "Message"),
+        ]);
+        $this->order_by = ["date DESC", "post_id"];
+        $this->table_attrs = ["class" => "zebra"];
+    }
+}
+
+class Tombstones extends Extension
+{
+    /** @var TombstoneTheme */
+    protected $theme;
+
+    public function onDatabaseUpgrade(DatabaseUpgradeEvent $event)
+    {
+        global $database;
+        if ($this->get_version("ext_tombstone_version") < 1) {
+            $database->create_table("tombstones", "
+				post_id INTEGER NOT NULL,
+				hash CHAR(32) NOT NULL,
+				date TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+				message TEXT NOT NULL
+			");
+            $this->set_version("ext_tombstone_version", 1);
+        }
+    }
+
+    public function onPageRequest(PageRequestEvent $event)
+    {
+        global $database, $page, $user;
+
+        if ($event->page_matches("post/view")) {
+            $post_id = int_escape($event->get_arg(0));
+
+            $tombstone = $database->get_one("SELECT * FROM tombstones WHERE post_id=:post_id", ["post_id"=>$post_id]);
+
+            if (!is_null($tombstone)) {
+                $this->theme->display_tombstone($tombstone);
+            }
+        }
+    }
+
+    public function onAddImageHashBan(AddImageHashBanEvent $event)
+    {
+        global $database;
+        $database->execute(
+            "UPDATE tombstones SET message=message || :reason WHERE hash=:hash",
+            ["hash"=>$event->hash, "reason"=>"\n" . $event->reason]
+        );
+    }
+}

ext/tombstones/test.php

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+<?php declare(strict_types=1);
+class TombstonesTest extends ShimmiePHPUnitTestCase
+{
+    private $hash = "feb01bab5698a11dd87416724c7a89e3";
+
+    public function testPages()
+    {
+        $this->log_in_as_admin();
+        $page = $this->get_page("image_hash_ban/list");
+        $this->assertEquals(200, $page->code);
+    }
+
+    public function testBan()
+    {
+        $this->log_in_as_admin();
+
+        // Post image
+        $image_id = $this->post_image("tests/pbx_screenshot.jpg", "pbx");
+        $page = $this->get_page("post/view/$image_id");
+        $this->assertEquals(200, $page->code);
+
+        // Ban & delete
+        send_event(new AddImageHashBanEvent($this->hash, "test hash ban"));
+        send_event(new ImageDeletionEvent(Image::by_id($image_id), true));
+
+        // Check deleted
+        $page = $this->get_page("post/view/$image_id");
+        $this->assertEquals(404, $page->code);
+
+        // Can't repost
+        try {
+            $this->post_image("tests/pbx_screenshot.jpg", "pbx");
+            $this->assertTrue(false);
+        } catch (UploadException $e) {
+            $this->assertTrue(true);
+        }
+
+        // Remove ban
+        send_event(new RemoveImageHashBanEvent($this->hash));
+
+        // Can repost
+        $image_id = $this->post_image("tests/pbx_screenshot.jpg", "pbx");
+        $page = $this->get_page("post/view/$image_id");
+        $this->assertEquals(200, $page->code);
+    }
+
+    public function onNotSuccessfulTest(Throwable $t): void
+    {
+        send_event(new RemoveImageHashBanEvent($this->hash));
+        parent::onNotSuccessfulTest($t); // TODO: Change the autogenerated stub
+    }
+}

ext/tombstones/theme.php

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+<?php declare(strict_types=1);
+use function MicroHTML\INPUT;
+
+class TombstonesTheme extends Themelet
+{
+    /*
+     * Show all the bans
+     */
+    public function display_bans(Page $page, $table, $paginator)
+    {
+        $page->set_title("Post Bans");
+        $page->set_heading("Post Bans");
+        $page->add_block(new NavBlock());
+        $page->add_block(new Block("Edit Post Bans", $table . $paginator));
+    }
+
+    /*
+     * Display a link to delete an image
+     */
+    public function get_buttons_html(Image $image)
+    {
+        return (string)SHM_SIMPLE_FORM(
+            "image_hash_ban/add",
+            INPUT(["type"=>'hidden', "name"=>'c_hash', "value"=>$image->hash]),
+            INPUT(["type"=>'hidden', "name"=>'c_image_id', "value"=>$image->id]),
+            INPUT(["type"=>'text', "name"=>'c_reason']),
+            INPUT(["type"=>'submit', "value"=>'Ban Hash and Delete Post']),
+        );
+    }
+}