src/config.rs

@@ -6,20 +6,20 @@ use serde::Deserialize;
 #[derive(Deserialize, Clone)]
 pub struct MemoryStorageConfig {
     pub max_size: usize,
-    pub ttl: usize,
+    pub ttl: u64,
 }
 
 #[derive(Deserialize, Clone)]
 pub struct DiskStorageConfig {
     pub path: PathBuf,
-    pub ttl: usize,
+    pub ttl: u64,
     pub max_size: usize,
 }
 
 #[derive(Deserialize, Clone)]
 pub struct MixedStorageConfig {
     pub path: PathBuf,
-    pub ttl: usize,
+    pub ttl: u64,
     pub max_size: usize,
 }
 
@@ -52,6 +52,7 @@ pub enum StorageStrategyConfig {
 #[derive(Deserialize)]
 pub struct StorageConfig {
     pub strategy: StorageStrategyConfig,
+    pub name: Option<String>,
 
     #[serde(with = "serde_regex")]
     pub regex: regex::Regex,

src/main.rs

@@ -23,19 +23,38 @@ async fn main() -> anyhow::Result<()> {
     storage_pool.init().await?;
 
     let app_state = AppState::new(storage_pool, secret_key);
-
-    let app = Router::new()
-        .route(
-            "/*src",
-            match app_state.secret_key {
+    let routes = match app_state.secret_key {
         Some(_) => get(routes::handle_secure),
         None => get(routes::handle_unsecure),
-            },
-        )
-        .with_state(Arc::new(Mutex::new(app_state)));
+    };
+
+    let app_state_th = Arc::new(Mutex::new(app_state));
+
+    tokio::spawn(launch_storages_tick(app_state_th.clone()));
+
+    let app = Router::new()
+        .route("/*src", routes)
+        .with_state(app_state_th);
 
     let listener = tokio::net::TcpListener::bind("0.0.0.0:3000").await?;
     axum::serve(listener, app).await?;
 
     Ok(())
 }
+
+async fn launch_storages_tick(app_state: Arc<Mutex<AppState>>) {
+    loop {
+        tokio::time::sleep(std::time::Duration::from_secs(1)).await;
+
+        let mut app_state_locked = app_state.lock().await;
+        let results = app_state_locked.storage_pool.tick().await;
+        let errs = results
+            .into_iter()
+            .filter(anyhow::Result::is_err)
+            .map(anyhow::Result::unwrap_err);
+
+        for err in errs {
+            println!("error while tick {}", err);
+        }
+    }
+}

src/storages/disk.rs

@@ -1,4 +1,4 @@
-use std::{path::PathBuf, pin::Pin};
+use std::{collections::HashMap, path::PathBuf, pin::Pin, time::SystemTime};
 
 use crate::config::DiskStorageConfig;
 use async_trait::async_trait;
@@ -9,13 +9,31 @@ use tokio_util::{bytes::Bytes, io::ReaderStream};
 
 use super::Storage;
 
+struct DiskStorageItem {
+    path: PathBuf,
+    created_at: SystemTime,
+}
+
+impl DiskStorageItem {
+    fn new(path: PathBuf, created_at: SystemTime) -> Self {
+        Self {
+            path: path,
+            created_at: created_at,
+        }
+    }
+}
+
 pub struct DiskStorage {
     config: DiskStorageConfig,
+    items: HashMap<String, DiskStorageItem>,
 }
 
 impl DiskStorage {
     pub fn new(config: DiskStorageConfig) -> Self {
-        Self { config }
+        Self {
+            config,
+            items: HashMap::new(),
+        }
     }
 
     pub async fn retrieve_all(
@@ -26,16 +44,10 @@ impl DiskStorage {
             Pin<Box<dyn Stream<Item = Result<Bytes, anyhow::Error>> + Send>>,
         )>,
     > {
-        let mut saved_files = tokio::fs::read_dir(self.config.path.clone()).await?;
         let mut files = Vec::new();
 
-        while let Some(file) = saved_files.next_entry().await? {
-            let key = file.file_name().to_string_lossy().to_string();
-            println!("{}", key);
-
-            let stream = self.retrieve(key.clone()).await.unwrap();
-
-            files.push((key, stream));
+        for key in self.items.keys() {
+            files.push((key.clone(), self.retrieve(key.clone()).await.unwrap()));
         }
 
         Ok(files)
@@ -47,6 +59,34 @@ impl Storage for DiskStorage {
     async fn init(&mut self) -> anyhow::Result<()> {
         tokio::fs::create_dir_all(self.config.path.clone()).await?;
 
+        let mut saved_files = tokio::fs::read_dir(self.config.path.clone()).await?;
+        while let Some(file) = saved_files.next_entry().await? {
+            let key = file.file_name().to_string_lossy().to_string();
+            let path = file.path();
+            let metadata = file.metadata().await?;
+
+            self.items
+                .insert(key, DiskStorageItem::new(path, metadata.created()?));
+        }
+
+        Ok(())
+    }
+
+    async fn tick(&mut self) -> anyhow::Result<()> {
+        let paths_deleted = self
+            .items
+            .iter()
+            .filter(|(_, item)| item.created_at.elapsed().unwrap().as_secs() >= self.config.ttl)
+            .map(|(_, item)| item.path.clone())
+            .collect::<Vec<PathBuf>>();
+
+        self.items
+            .retain(|_, item| item.created_at.elapsed().unwrap().as_secs() < self.config.ttl);
+
+        for path in paths_deleted {
+            tokio::fs::remove_file(path).await?;
+        }
+
         Ok(())
     }
 

src/storages/memory.rs

@@ -1,4 +1,8 @@
-use std::{collections::HashMap, pin::Pin};
+use std::{
+    collections::HashMap,
+    pin::Pin,
+    time::{Duration, SystemTime},
+};
 
 use anyhow::Ok;
 use async_trait::async_trait;
@@ -9,9 +13,23 @@ use crate::config::MemoryStorageConfig;
 
 use super::Storage;
 
+struct MemoryStorageItem {
+    data: Vec<u8>,
+    created_at: SystemTime,
+}
+
+impl MemoryStorageItem {
+    fn new() -> Self {
+        Self {
+            data: Vec::new(),
+            created_at: SystemTime::now(),
+        }
+    }
+}
+
 pub struct MemoryStorage {
     config: MemoryStorageConfig,
-    items: HashMap<String, Vec<u8>>,
+    items: HashMap<String, MemoryStorageItem>,
 }
 
 impl MemoryStorage {
@@ -29,15 +47,23 @@ impl Storage for MemoryStorage {
         Ok(())
     }
 
+    async fn tick(&mut self) -> anyhow::Result<()> {
+        self.items
+            .retain(|_, item| item.created_at.elapsed().unwrap().as_secs() < self.config.ttl);
+
+        Ok(())
+    }
+
     async fn eligible(&self, _src: String) -> bool {
         true
     }
 
     async fn delete(&mut self, key: String) -> anyhow::Result<()> {
-        self.items
-            .remove(&key)
-            .ok_or_else(|| anyhow::anyhow!(""))
-            .map(|_| ())
+        if self.items.get(&key).is_some() {
+            self.items.remove(&key);
+        }
+
+        Ok(())
     }
 
     async fn retrieve(
@@ -46,7 +72,7 @@ impl Storage for MemoryStorage {
     ) -> Option<Pin<Box<dyn Stream<Item = Result<Bytes, anyhow::Error>> + Send>>> {
         match self.items.get(&key) {
             Some(item) => {
-                let bytes = tokio_util::bytes::Bytes::from(item.clone());
+                let bytes = tokio_util::bytes::Bytes::from(item.data.clone());
                 let stream = futures::stream::iter([Ok(bytes)]);
 
                 Some(Box::pin(stream))
@@ -61,13 +87,14 @@ impl Storage for MemoryStorage {
         mut stream: Pin<Box<dyn Stream<Item = Result<Bytes, anyhow::Error>> + Send>>,
     ) -> anyhow::Result<()> {
         if !self.items.contains_key(&key) {
-            self.items.insert(key.clone(), Vec::new());
+            self.items.insert(key.clone(), MemoryStorageItem::new());
         }
 
         while let Some(chunk) = stream.next().await {
             self.items
                 .get_mut(&key)
                 .unwrap()
+                .data
                 .append(&mut chunk?.to_vec());
         }
 

src/storages/mixed.rs

@@ -16,7 +16,7 @@ pub struct MixedStorage {
 impl MixedStorage {
     pub fn new(config: MixedStorageConfig) -> Self {
         Self {
-            disk: DiskStorage::new(config.clone().into()),
+            disk: DiskStorage::new(config.to_owned().into()),
             memory: MemoryStorage::new(config.into()),
         }
     }
@@ -36,6 +36,13 @@ impl Storage for MixedStorage {
         Ok(())
     }
 
+    async fn tick(&mut self) -> anyhow::Result<()> {
+        self.disk.tick().await?;
+        self.memory.tick().await?;
+
+        Ok(())
+    }
+
     async fn eligible(&self, _src: String) -> bool {
         true
     }

src/storages/mod.rs

@@ -19,6 +19,7 @@ use self::{disk::DiskStorage, memory::MemoryStorage, mixed::MixedStorage};
 pub trait Storage {
     async fn init(&mut self) -> anyhow::Result<()>;
     async fn eligible(&self, src: String) -> bool;
+    async fn tick(&mut self) -> anyhow::Result<()>;
     async fn delete(&mut self, key: String) -> anyhow::Result<()>;
     async fn retrieve(
         &self,
@@ -50,6 +51,16 @@ impl StoragePool {
         Ok(())
     }
 
+    pub async fn tick(&mut self) -> Vec<anyhow::Result<()>> {
+        let mut results = vec![];
+
+        for item in &mut self.storages {
+            results.push(item.tick().await);
+        }
+
+        results
+    }
+
     pub async fn retrieve(
         &self,
         src: String,