Ref-count Redis pool internals, fix project creation slug/ID collision (#5302)

* Ref-count Redis pool internals, fix project creation slug/ID collision

* cargo sqlx prepare

apps/labrinth/.sqlx/query-f8be3053274b00ee9743e798886696062009c5f681baaf29dfc24cfbbda93742.json

@@ -1,22 +0,0 @@
-{
-  "db_name": "PostgreSQL",
-  "query": "\n                SELECT EXISTS(SELECT 1 FROM mods WHERE slug = LOWER($1))\n                ",
-  "describe": {
-    "columns": [
-      {
-        "ordinal": 0,
-        "name": "exists",
-        "type_info": "Bool"
-      }
-    ],
-    "parameters": {
-      "Left": [
-        "Text"
-      ]
-    },
-    "nullable": [
-      null
-    ]
-  },
-  "hash": "f8be3053274b00ee9743e798886696062009c5f681baaf29dfc24cfbbda93742"
-}

apps/labrinth/src/database/redis/mod.rs

@@ -14,6 +14,7 @@ use std::collections::HashMap;
 use std::fmt::{Debug, Display};
 use std::future::Future;
 use std::hash::Hash;
+use std::sync::Arc;
 use std::time::Duration;
 use tracing::{Instrument, info, info_span};
 use util::{cmd, redis_pipe};
@@ -27,20 +28,20 @@ const ACTUAL_EXPIRY: i64 = 60 * 30; // 30 minutes
 pub struct RedisPool {
     pub url: String,
     pub pool: deadpool_redis::Pool,
-    cache_list: DashMap<String, util::CacheSubscriber>,
-    meta_namespace: String,
+    cache_list: Arc<DashMap<String, util::CacheSubscriber>>,
+    meta_namespace: Arc<str>,
 }
 
 pub struct RedisConnection {
     pub connection: deadpool_redis::Connection,
-    meta_namespace: String,
+    meta_namespace: Arc<str>,
 }
 
 impl RedisPool {
     // initiate a new redis pool
     // testing pool uses a hashmap to mimic redis behaviour for very small data sizes (ie: tests)
     // PANICS: production pool will panic if redis url is not set
-    pub fn new(meta_namespace: Option<String>) -> Self {
+    pub fn new(meta_namespace: impl Into<Arc<str>>) -> Self {
         let wait_timeout =
             dotenvy::var("REDIS_WAIT_TIMEOUT_MS").ok().map_or_else(
                 || Duration::from_millis(15000),
@@ -71,8 +72,8 @@ impl RedisPool {
         let pool = RedisPool {
             url,
             pool,
-            cache_list: DashMap::with_capacity(2048),
-            meta_namespace: meta_namespace.unwrap_or("".to_string()),
+            cache_list: Arc::new(DashMap::with_capacity(2048)),
+            meta_namespace: meta_namespace.into(),
         };
 
         let redis_min_connections = dotenvy::var("REDIS_MIN_CONNECTIONS")

apps/labrinth/src/main.rs

@@ -117,7 +117,7 @@ async fn app() -> std::io::Result<()> {
         .expect("Database connection failed");
 
     // Redis connector
-    let redis_pool = RedisPool::new(None);
+    let redis_pool = RedisPool::new("");
 
     let storage_backend =
         dotenvy::var("STORAGE_BACKEND").unwrap_or_else(|_| "local".to_string());

apps/labrinth/src/routes/v3/project_creation.rs

@@ -497,7 +497,12 @@ async fn project_create_inner(
         {
             let results = sqlx::query!(
                 "
-                SELECT EXISTS(SELECT 1 FROM mods WHERE slug = LOWER($1))
+                SELECT EXISTS(
+                    SELECT 1 FROM mods
+                    WHERE
+                        slug = LOWER($1)
+                        OR text_id_lower = LOWER($1)
+                )
                 ",
                 create_data.slug
             )

apps/labrinth/src/test/database.rs

@@ -89,7 +89,7 @@ impl TemporaryDatabase {
         println!("Migrations complete");
 
         // Gets new Redis pool
-        let redis_pool = RedisPool::new(Some(temp_database_name.clone()));
+        let redis_pool = RedisPool::new(temp_database_name.clone());
 
         // Create new meilisearch config
         let search_config =
@@ -194,7 +194,7 @@ impl TemporaryDatabase {
                         pool: pool.clone(),
                         ro_pool: ReadOnlyPgPool::from(pool.clone()),
                         database_name: TEMPLATE_DATABASE_NAME.to_string(),
-                        redis_pool: RedisPool::new(Some(name.clone())),
+                        redis_pool: RedisPool::new(name.clone()),
                         search_config: search::SearchConfig::new(Some(name)),
                     };
                     let setup_api =