+ Jwt tables - SEE NOTE

! wat - because have to do maintain permissions on a per request level we have
to do this check for permissions at what is basically every level, this does
mean we have to hit the database for a lot of routes however there is a check
that requests go through in order to avoid hitting the database whenever possible

+ rng field in claims now has real purpose
It's purpose is to act as a validator field in the jwt table. By verifying rng
fields we no  longer have to store whole jwt's

json-api/db/src/jwt.rs

@@ -0,0 +1,19 @@
+use mysql_async::{Pool, params, Result, prelude::Queryable};
+
+pub async fn listed(p: &Pool, id: u64, given_rng_value: &str) -> Result<bool> {
+    let mut conn = p.get_conn().await?;
+    let q = "SELECT rng FROM jwt WHERE id = :id";
+    let row: Option<String> = conn.exec_first(q, params!{"id" => id}).await?;
+    if let Some(value) = row { 
+        Ok(value == given_rng_value)
+    } else{
+        Ok(false)
+    }
+}
+
+pub async fn insert(p: &Pool, id: u64, given_rng_value: &str) -> Result<()> {
+    let mut conn = p.get_conn().await?;
+    let q = "INSERT INTO jwt (id, rng) VALUES (:id, :rng)";
+    conn.exec_drop(q, params!{"id" => id, "rng" => given_rng_value}).await?;
+    Ok(())
+}

json-api/db/src/lib.rs

@@ -6,6 +6,7 @@ pub mod invites;
 pub mod channels;
 pub mod messages;
 pub mod neighbors;
+pub mod jwt;
 
 use std::vec::Vec;