diff --git a/misuzu.php b/misuzu.php
index dad3620b..8bfc570f 100644
--- a/misuzu.php
+++ b/misuzu.php
@@ -16,6 +16,7 @@ require_once __DIR__ . '/src/perms.php';
 require_once __DIR__ . '/src/tpl.php';
 require_once __DIR__ . '/src/zalgo.php';
 require_once __DIR__ . '/src/Forum/forum.php';
+require_once __DIR__ . '/src/Forum/perms.php';
 require_once __DIR__ . '/src/Forum/post.php';
 require_once __DIR__ . '/src/Forum/topic.php';
 require_once __DIR__ . '/src/Forum/validate.php';
diff --git a/src/Forum/perms.php b/src/Forum/perms.php
new file mode 100644
index 00000000..b99cd4f4
--- /dev/null
+++ b/src/Forum/perms.php
@@ -0,0 +1,147 @@
+<?php
+use Misuzu\Database;
+
+define('MSZ_FORUM_PERMS_GENERAL', 'forum');
+
+define('MSZ_FORUM_PERM_MODES', [
+    MSZ_FORUM_PERMS_GENERAL,
+]);
+
+function forum_perms_get_keys(): array
+{
+    $perms = [];
+
+    foreach (MSZ_FORUM_PERM_MODES as $mode) {
+        foreach (MSZ_PERM_SETS as $set) {
+            $perms[] = perms_get_key($mode, $set);
+        }
+    }
+
+    return $perms;
+}
+
+function forum_perms_create(): int
+{
+    $perms = [];
+
+    foreach (forum_perms_get_keys() as $key) {
+        $perms[$key] = 0;
+    }
+
+    return $perms;
+}
+
+function forum_perms_get_user(string $prefix, ?int $forum, int $user): int
+{
+    if (!in_array($prefix, MSZ_FORUM_PERM_MODES) || $user < 1) {
+        return 0;
+    } elseif ($user === 1) {
+        return 0x7FFFFFFF;
+    }
+
+    $getPerms = Database::prepare("
+        SELECT BIT_OR(`{$prefix}_perms_allow`) &~ BIT_OR(`{$prefix}_perms_deny`)
+        FROM `msz_forum_permissions`
+        WHERE (
+            `forum_id` = :forum_id
+            OR `forum_id` IS NULL
+        )
+        AND (
+            (`user_id` = :user_id_1 AND `role_id` IS NULL)
+            OR (
+                `user_id` IS NULL
+                AND `role_id` IN (
+                    SELECT `role_id`
+                    FROM `msz_user_roles`
+                    WHERE `user_id` = :user_id_2
+                )
+            )
+        )
+    ");
+    $getPerms->bindValue('forum_id', $forum);
+    $getPerms->bindValue('user_id_1', $user);
+    $getPerms->bindValue('user_id_2', $user);
+    return $getPerms->execute() ? (int)$getPerms->fetchColumn() : 0;
+}
+
+function forum_perms_get_role(string $prefix, ?int $forum, int $role): int
+{
+    if (!in_array($prefix, MSZ_FORUM_PERM_MODES) || $role < 1) {
+        return 0;
+    }
+
+    $getPerms = Database::prepare("
+        SELECT `{$prefix}_perms_allow` &~ `{$prefix}_perms_deny`
+        FROM `msz_forum_permissions`
+        WHERE (
+            `forum_id` = :forum_id
+            OR `forum_id` IS NULL
+        )
+        AND `role_id` = :role_id
+        AND `user_id` IS NULL
+    ");
+    $getPerms->bindValue('forum_id', $forum);
+    $getPerms->bindValue('role_id', $role);
+    return $getPerms->execute() ? (int)$getPerms->fetchColumn() : 0;
+}
+
+function perms_get_user_raw(?int $forum, int $user): array
+{
+    $emptyPerms = forum_perms_create();
+
+    if ($user < 1) {
+        return $emptyPerms;
+    }
+
+    $getPerms = Database::prepare('
+        SELECT
+            `' . implode('`, `', forum_perms_get_keys()) . '`
+        FROM `msz_forum_permissions`
+        WHERE `user_id` = :user_id
+        AND `role_id` IS NULL
+    ');
+    $getPerms->bindValue('forum_id', $user);
+    $getPerms->bindValue('user_id', $user);
+
+    if (!$getPerms->execute()) {
+        return $emptyPerms;
+    }
+
+    $perms = $getPerms->fetch(PDO::FETCH_ASSOC);
+
+    if (!$perms) {
+        return $emptyPerms;
+    }
+
+    return $perms;
+}
+
+function perms_get_role_raw(int $role): array
+{
+    $emptyPerms = perms_create();
+
+    if ($role < 1) {
+        return $emptyPerms;
+    }
+
+    $getPerms = Database::prepare('
+        SELECT
+            `' . implode('`, `', perms_get_keys()) . '`
+        FROM `msz_permissions`
+        WHERE `user_id` IS NULL
+        AND `role_id` = :role_id
+    ');
+    $getPerms->bindValue('role_id', $role);
+
+    if (!$getPerms->execute()) {
+        return $emptyPerms;
+    }
+
+    $perms = $getPerms->fetch(PDO::FETCH_ASSOC);
+
+    if (!$perms) {
+        return $emptyPerms;
+    }
+
+    return $perms;
+}