rust-s3

backend/Cargo.toml

@@ -18,9 +18,7 @@ uuid = { version = "1.6", features = ["v4", "serde"] }
 chrono = { version = "0.4", features = ["serde"] }
 
 # S3
-aws-config = "1.1"
+rust-s3 = { version = "0.37", features = ["with-tokio", "tokio-rustls-tls"] }
-aws-sdk-s3 = "1.14"
-aws-credential-types = "1.2"
 
 # Serialization
 serde = { version = "1.0", features = ["derive"] }

backend/src/bin/admin.rs

@@ -492,9 +492,8 @@ async fn delete_assets_for_tenant(
     pool: &PgPool,
     tenant_id: Uuid,
 ) -> Result<()> {
-    let s3_client = s3::build_client(config).await?;
+    let bucket = s3::build_bucket(config)?;
-    let storage: Arc<dyn ObjectStorage> =
+    let storage: Arc<dyn ObjectStorage> = Arc::new(S3Storage::new(bucket));
-        Arc::new(S3Storage::new(s3_client, config.s3_bucket.clone()));
 
     let mut conn = pool.get().context("failed to get database connection")?;
     let tenant: Tenant = tenants::table

backend/src/s3.rs

@@ -1,38 +1,34 @@
-use anyhow::Result;
+use anyhow::{anyhow, Context, Result};
-use aws_config::meta::region::RegionProviderChain;
+use s3::{bucket::Bucket, creds::Credentials, region::Region};
-use aws_credential_types::Credentials;
-use aws_sdk_s3::{
-    config::{Builder as S3ConfigBuilder, Region},
-    Client as S3Client,
-};
 
 use crate::config::AppConfig;
 
-pub async fn build_client(config: &AppConfig) -> Result<S3Client> {
+pub fn build_bucket(config: &AppConfig) -> Result<Bucket> {
-    let region = Region::new(config.aws_region.clone());
+    let region = if let Some(endpoint) = &config.aws_endpoint_url {
-    let region_provider = RegionProviderChain::first_try(Some(region))
+        Region::Custom {
-        .or_default_provider()
+            region: config.aws_region.clone(),
-        .or_else("us-east-1");
+            endpoint: endpoint.clone(),
-
-    #[allow(deprecated)]
-    let mut loader = aws_config::from_env().region(region_provider);
-
-    if let Some(endpoint) = &config.aws_endpoint_url {
-        loader = loader.endpoint_url(endpoint);
         }
+    } else {
+        config
+            .aws_region
+            .parse::<Region>()
+            .context("invalid AWS region")?
+    };
 
-    if let (Some(access_key), Some(secret_key)) = (
+    let credentials = if let (Some(access_key), Some(secret_key)) = (
-        config.aws_access_key_id.clone(),
+        config.aws_access_key_id.as_deref(),
-        config.aws_secret_access_key.clone(),
+        config.aws_secret_access_key.as_deref(),
     ) {
-        let credentials = Credentials::new(access_key, secret_key, None, None, "static");
+        Credentials::new(Some(access_key), Some(secret_key), None, None, None)
-        loader = loader.credentials_provider(credentials);
+            .context("failed to create static AWS credentials")?
-    }
+    } else {
+        Credentials::default().context("failed to load AWS credentials")?
+    };
 
-    let base_config = loader.load().await;
+    let bucket = Bucket::new(&config.s3_bucket, region, credentials)
-    let s3_config = S3ConfigBuilder::from(&base_config)
+        .map_err(|err| anyhow!("failed to create S3 bucket client: {err}"))?;
-        .force_path_style(true)
+    let bucket = bucket.with_path_style();
-        .build();
 
-    Ok(S3Client::from_conf(s3_config))
+    Ok(*bucket)
 }

backend/src/state.rs

@@ -34,11 +34,8 @@ impl AppState {
     ) -> anyhow::Result<Self> {
         let pool_size = pool_size_override.unwrap_or(config.database_max_pool_size);
         let pool = crate::db::init_pool_with_size(&config.database_url, pool_size)?;
-        let s3_client = crate::s3::build_client(&config).await?;
+        let bucket = crate::s3::build_bucket(&config)?;
-        let storage = Arc::new(crate::storage::S3Storage::new(
+        let storage = Arc::new(crate::storage::S3Storage::new(bucket));
-            s3_client,
-            config.s3_bucket.clone(),
-        ));
         let jwt = crate::auth::jwt::JwtService::from_config(&config)?;
 
         Ok(Self::new(pool, config, storage, jwt))

backend/src/storage.rs

@@ -1,12 +1,10 @@
-use std::time::Duration;
+use std::collections::HashMap;
-
 use std::sync::Arc;
+use std::time::Duration;
 
 use anyhow::{anyhow, Context, Result};
 use async_trait::async_trait;
-use aws_sdk_s3::presigning::PresigningConfig;
+use s3::bucket::Bucket;
-use aws_sdk_s3::primitives::ByteStream;
-use aws_sdk_s3::Client as S3Client;
 
 use crate::models::Tenant;
 
@@ -33,16 +31,16 @@ pub trait ObjectStorage: Send + Sync + 'static {
 }
 
 pub struct S3Storage {
-    client: S3Client,
+    bucket: Bucket,
-    bucket: String,
 }
 
 impl S3Storage {
-    pub fn new(client: S3Client, bucket: impl Into<String>) -> Self {
+    pub fn new(bucket: Bucket) -> Self {
-        Self {
+        Self { bucket }
-            client,
-            bucket: bucket.into(),
     }
+
+    fn default_content_type(content_type: Option<String>) -> String {
+        content_type.unwrap_or_else(|| "application/octet-stream".to_string())
     }
 }
 
@@ -55,23 +53,19 @@ impl ObjectStorage for S3Storage {
         content_type: Option<String>,
         content_disposition: Option<String>,
     ) -> Result<()> {
-        let mut request = self
+        let mut builder = self
-            .client
+            .bucket
-            .put_object()
+            .put_object_builder(key, &bytes)
-            .bucket(&self.bucket)
+            .with_content_type(Self::default_content_type(content_type));
-            .key(key)
-            .body(ByteStream::from(bytes));
 
-        if let Some(content_type) = content_type {
+        if let Some(disposition) = content_disposition {
-            request = request.content_type(content_type);
+            builder = builder
+                .with_content_disposition(disposition)
+                .context("invalid content disposition header")?;
         }
 
-        if let Some(content_disposition) = content_disposition {
+        builder
-            request = request.content_disposition(content_disposition);
+            .execute()
-        }
-
-        request
-            .send()
             .await
             .context("failed to upload object to S3")?;
 
@@ -84,51 +78,35 @@ impl ObjectStorage for S3Storage {
         expires_in: Duration,
         response_content_disposition: Option<&str>,
     ) -> Result<String> {
-        let presign_config = PresigningConfig::builder()
+        let expiry_secs = u32::try_from(expires_in.as_secs())
-            .expires_in(expires_in)
+            .context("presign expiry exceeds u32 range")?;
-            .build()
-            .context("failed to build S3 presigning config")?;
 
-        let mut request = self.client.get_object().bucket(&self.bucket).key(key);
+        let mut queries = HashMap::new();
         if let Some(value) = response_content_disposition {
-            request = request.response_content_disposition(value);
+            queries.insert(
+                "response-content-disposition".to_string(),
+                value.to_string(),
+            );
         }
 
-        let presigned = request
+        self.bucket
-            .presigned(presign_config)
+            .presign_get(key, expiry_secs, (!queries.is_empty()).then_some(queries))
             .await
-            .context("failed to generate presigned download URL")?;
+            .context("failed to generate presigned download URL")
-
-        Ok(presigned.uri().to_string())
     }
 
     async fn get_object(&self, key: &str) -> Result<Vec<u8>> {
-        let response = self
+        let data = self
-            .client
+            .bucket
-            .get_object()
+            .get_object(key)
-            .bucket(&self.bucket)
-            .key(key)
-            .send()
             .await
             .context("failed to download object from S3")?;
-
+        Ok(data.into_bytes().to_vec())
-        let bytes = response
-            .body
-            .collect()
-            .await
-            .context("failed to read object stream")?
-            .into_bytes()
-            .to_vec();
-
-        Ok(bytes)
     }
 
     async fn delete_object(&self, key: &str) -> Result<()> {
-        self.client
+        self.bucket
-            .delete_object()
+            .delete_object(key)
-            .bucket(&self.bucket)
-            .key(key)
-            .send()
             .await
             .context("failed to delete object from S3")?;
         Ok(())