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|
use std::sync::Arc;
use hyper::{Body, Request, Response, StatusCode};
use garage_util::data::*;
use garage_util::time::*;
use garage_model::garage::Garage;
use garage_model::s3::object_table::*;
use crate::error::*;
use crate::s3::xml as s3_xml;
use crate::signature::verify_signed_content;
async fn handle_delete_internal(
garage: &Garage,
bucket_id: Uuid,
key: &str,
) -> Result<(Uuid, Uuid), Error> {
let object = garage
.object_table
.get(&bucket_id, &key.to_string())
.await?
.ok_or(Error::NoSuchKey)?; // No need to delete
let interesting_versions = object.versions().iter().filter(|v| {
!matches!(
v.state,
ObjectVersionState::Aborted
| ObjectVersionState::Complete(ObjectVersionData::DeleteMarker)
)
});
let mut version_to_delete = None;
let mut timestamp = now_msec();
for v in interesting_versions {
if v.timestamp + 1 > timestamp || version_to_delete.is_none() {
version_to_delete = Some(v.uuid);
}
timestamp = std::cmp::max(timestamp, v.timestamp + 1);
}
let deleted_version = version_to_delete.ok_or(Error::NoSuchKey)?;
let version_uuid = gen_uuid();
let object = Object::new(
bucket_id,
key.into(),
vec![ObjectVersion {
uuid: version_uuid,
timestamp,
state: ObjectVersionState::Complete(ObjectVersionData::DeleteMarker),
}],
);
garage.object_table.insert(&object).await?;
Ok((deleted_version, version_uuid))
}
pub async fn handle_delete(
garage: Arc<Garage>,
bucket_id: Uuid,
key: &str,
) -> Result<Response<Body>, Error> {
let (_deleted_version, delete_marker_version) =
handle_delete_internal(&garage, bucket_id, key).await?;
Ok(Response::builder()
.header("x-amz-version-id", hex::encode(delete_marker_version))
.status(StatusCode::NO_CONTENT)
.body(Body::from(vec![]))
.unwrap())
}
pub async fn handle_delete_objects(
garage: Arc<Garage>,
bucket_id: Uuid,
req: Request<Body>,
content_sha256: Option<Hash>,
) -> Result<Response<Body>, Error> {
let body = hyper::body::to_bytes(req.into_body()).await?;
if let Some(content_sha256) = content_sha256 {
verify_signed_content(content_sha256, &body[..])?;
}
let cmd_xml = roxmltree::Document::parse(std::str::from_utf8(&body)?)?;
let cmd = parse_delete_objects_xml(&cmd_xml).ok_or_bad_request("Invalid delete XML query")?;
let mut ret_deleted = Vec::new();
let mut ret_errors = Vec::new();
for obj in cmd.objects.iter() {
match handle_delete_internal(&garage, bucket_id, &obj.key).await {
Ok((deleted_version, delete_marker_version)) => {
if cmd.quiet {
continue;
}
ret_deleted.push(s3_xml::Deleted {
key: s3_xml::Value(obj.key.clone()),
version_id: s3_xml::Value(hex::encode(deleted_version)),
delete_marker_version_id: s3_xml::Value(hex::encode(delete_marker_version)),
});
}
Err(e) => {
ret_errors.push(s3_xml::DeleteError {
code: s3_xml::Value(e.aws_code().to_string()),
key: Some(s3_xml::Value(obj.key.clone())),
message: s3_xml::Value(format!("{}", e)),
version_id: None,
});
}
}
}
let xml = s3_xml::to_xml_with_header(&s3_xml::DeleteResult {
xmlns: (),
deleted: ret_deleted,
errors: ret_errors,
})?;
Ok(Response::builder()
.header("Content-Type", "application/xml")
.body(Body::from(xml))?)
}
struct DeleteRequest {
quiet: bool,
objects: Vec<DeleteObject>,
}
struct DeleteObject {
key: String,
}
fn parse_delete_objects_xml(xml: &roxmltree::Document) -> Option<DeleteRequest> {
let mut ret = DeleteRequest {
quiet: false,
objects: vec![],
};
let root = xml.root();
let delete = root.first_child()?;
if !delete.has_tag_name("Delete") {
return None;
}
for item in delete.children() {
if item.has_tag_name("Object") {
let key = item.children().find(|e| e.has_tag_name("Key"))?;
let key_str = key.text()?;
ret.objects.push(DeleteObject {
key: key_str.to_string(),
});
} else if item.has_tag_name("Quiet") {
if item.text()? == "true" {
ret.quiet = true;
} else {
ret.quiet = false;
}
} else {
return None;
}
}
Some(ret)
}
|
