Implement EndpointScope enum

src/models/token.rs

@@ -1,3 +1,5 @@
+mod scopes;
+
 use chrono::NaiveDateTime;
 use diesel::prelude::*;
 
@@ -28,7 +30,7 @@ pub struct ApiToken {
     pub crate_scopes: Option<Vec<String>>,
     /// A list of endpoint scopes or `None` for the `legacy` endpoint scope (see RFC #2947)
     #[serde(skip)]
-    pub endpoint_scopes: Option<Vec<String>>,
+    pub endpoint_scopes: Option<Vec<scopes::EndpointScope>>,
 }
 
 impl ApiToken {

src/models/token/scopes.rs

@@ -0,0 +1,52 @@
+use diesel::deserialize::{self, FromSql};
+use diesel::pg::Pg;
+use diesel::serialize::{self, IsNull, Output, ToSql};
+use diesel::sql_types::Text;
+use std::io::Write;
+
+#[derive(Clone, Copy, Debug, PartialEq, Eq, AsExpression)]
+#[sql_type = "Text"]
+pub enum EndpointScope {
+    PublishNew,
+    PublishUpdate,
+    Yank,
+    ChangeOwners,
+}
+
+impl From<&EndpointScope> for &[u8] {
+    fn from(scope: &EndpointScope) -> Self {
+        match scope {
+            EndpointScope::PublishNew => b"publish-new",
+            EndpointScope::PublishUpdate => b"publish-update",
+            EndpointScope::Yank => b"yank",
+            EndpointScope::ChangeOwners => b"change-owners",
+        }
+    }
+}
+
+impl ToSql<Text, Pg> for EndpointScope {
+    fn to_sql<W: Write>(&self, out: &mut Output<'_, W, Pg>) -> serialize::Result {
+        out.write_all(self.into())?;
+        Ok(IsNull::No)
+    }
+}
+
+impl TryFrom<&[u8]> for EndpointScope {
+    type Error = String;
+
+    fn try_from(bytes: &[u8]) -> Result<Self, Self::Error> {
+        match bytes {
+            b"publish-new" => Ok(EndpointScope::PublishNew),
+            b"publish-update" => Ok(EndpointScope::PublishUpdate),
+            b"yank" => Ok(EndpointScope::Yank),
+            b"change-owners" => Ok(EndpointScope::ChangeOwners),
+            _ => Err("Unrecognized enum variant".to_string()),
+        }
+    }
+}
+
+impl FromSql<Text, Pg> for EndpointScope {
+    fn from_sql(bytes: Option<&[u8]>) -> deserialize::Result<Self> {
+        Ok(EndpointScope::try_from(not_none!(bytes))?)
+    }
+}