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// MinIO Rust Library for Amazon S3 Compatible Cloud Storage
// Copyright 2022-2024 MinIO, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//! Responses for RemoveObject APIs.
use async_trait::async_trait;
use bytes::Buf;
use http::HeaderMap;
use std::mem;
use xmltree::Element;
use crate::s3::{
error::Error,
types::{FromS3Response, S3Request},
utils::{get_default_text, get_option_text, get_text},
};
#[derive(Debug, Clone)]
pub struct RemoveObjectResponse {
/// HTTP headers returned by the server, containing metadata such as `Content-Type`, `ETag`, etc.
pub headers: HeaderMap,
/// Value of the `x-amz-delete-marker` header.
pub is_delete_marker: bool,
/// If a delete marker was created, this field will contain the version_id
/// of the delete marker. Value of the `x-amz-version-id` header.
pub version_id: Option<String>,
}
#[async_trait]
impl FromS3Response for RemoveObjectResponse {
async fn from_s3response(
_req: S3Request,
resp: Result<reqwest::Response, Error>,
) -> Result<Self, Error> {
let mut resp = resp?;
let headers: HeaderMap = mem::take(resp.headers_mut());
let is_delete_marker = headers
.get("x-amz-delete-marker")
.map(|v| v == "true")
.unwrap_or(false);
let version_id: Option<String> = headers
.get("x-amz-version-id")
.and_then(|v| v.to_str().ok().map(String::from));
Ok(RemoveObjectResponse {
headers,
is_delete_marker,
version_id,
})
}
}
/// Error info returned by the S3 API when an object could not be deleted.
#[derive(Clone, Debug)]
pub struct DeleteError {
pub code: String,
pub message: String,
pub object_name: String,
pub version_id: Option<String>,
}
/// Information about an object that was deleted.
#[derive(Clone, Debug)]
pub struct DeletedObject {
pub name: String,
pub version_id: Option<String>,
pub delete_marker: bool,
pub delete_marker_version_id: Option<String>,
}
/// Response of
/// [delete_objects()](crate::s3::client::Client::delete_objects)
/// S3 API. It is also returned by the
/// [remove_objects()](crate::s3::client::Client::remove_objects) API in the
/// form of a stream.
#[derive(Clone, Debug)]
pub struct RemoveObjectsResponse {
/// HTTP headers returned by the server, containing metadata such as `Content-Type`, `ETag`, etc.
pub headers: HeaderMap,
pub result: Vec<DeleteResult>,
}
/// Result of deleting an object.
#[derive(Clone, Debug)]
pub enum DeleteResult {
Deleted(DeletedObject),
Error(DeleteError),
}
impl From<DeleteResult> for Result<DeletedObject, DeleteError> {
fn from(result: DeleteResult) -> Self {
match result {
DeleteResult::Deleted(obj) => Ok(obj),
DeleteResult::Error(err) => Err(err),
}
}
}
impl DeleteResult {
pub fn is_deleted(&self) -> bool {
matches!(self, DeleteResult::Deleted(_))
}
pub fn is_error(&self) -> bool {
matches!(self, DeleteResult::Error(_))
}
}
#[async_trait]
impl FromS3Response for RemoveObjectsResponse {
async fn from_s3response(
_req: S3Request,
resp: Result<reqwest::Response, Error>,
) -> Result<Self, Error> {
let resp = resp?;
let headers = resp.headers().clone();
let body = resp.bytes().await?;
let root = Element::parse(body.reader())?;
let result = root
.children
.iter()
.map(|elem| elem.as_element().unwrap())
.map(|elem| {
if elem.name == "Deleted" {
Ok(DeleteResult::Deleted(DeletedObject {
name: get_text(elem, "Key")?,
version_id: get_option_text(elem, "VersionId"),
delete_marker: get_default_text(elem, "DeleteMarker").to_lowercase()
== "true",
delete_marker_version_id: get_option_text(elem, "DeleteMarkerVersionId"),
}))
} else {
assert_eq!(elem.name, "Error");
Ok(DeleteResult::Error(DeleteError {
code: get_text(elem, "Code")?,
message: get_text(elem, "Message")?,
object_name: get_text(elem, "Key")?,
version_id: get_option_text(elem, "VersionId"),
}))
}
})
.collect::<Result<Vec<DeleteResult>, Error>>()?;
Ok(Self { headers, result })
}
}