Restrict channel names, too.

Thankfully, channel creation only happens in one place, so we don't need a state machine for this.

1 files changed, 7 insertions, 1 deletions

diff --git a/src/channel/app.rs b/src/channel/app.rs
index 8359277..9a19b16 100644
--- a/src/channel/app.rs
+++ b/src/channel/app.rs
@@ -4,7 +4,7 @@ use sqlx::sqlite::SqlitePool;
 
 use super::{
     repo::{LoadError, Provider as _},
-    Channel, Id,
+    validate, Channel, Id,
 };
 use crate::{
     clock::DateTime,
@@ -25,6 +25,10 @@ impl<'a> Channels<'a> {
     }
 
     pub async fn create(&self, name: &Name, created_at: &DateTime) -> Result<Channel, CreateError> {
+        if !validate::name(name) {
+            return Err(CreateError::InvalidName(name.clone()));
+        }
+
         let mut tx = self.db.begin().await?;
         let created = tx.sequence().next(created_at).await?;
         let channel = tx
@@ -149,6 +153,8 @@ impl<'a> Channels<'a> {
 pub enum CreateError {
     #[error("channel named {0} already exists")]
     DuplicateName(Name),
+    #[error("invalid channel name: {0}")]
+    InvalidName(Name),
     #[error(transparent)]
     Database(#[from] sqlx::Error),
     #[error(transparent)]