178 lines
4.4 KiB
Rust
178 lines
4.4 KiB
Rust
use std::fmt::Write;
|
|
use std::sync::Arc;
|
|
|
|
use hyper::{Body, Request, Response};
|
|
|
|
use garage_util::data::*;
|
|
use garage_util::error::Error;
|
|
|
|
use garage_core::garage::Garage;
|
|
use garage_core::object_table::*;
|
|
|
|
use crate::encoding::*;
|
|
use crate::http_util::*;
|
|
|
|
async fn handle_delete_internal(
|
|
garage: &Garage,
|
|
bucket: &str,
|
|
key: &str,
|
|
) -> Result<(UUID, UUID), Error> {
|
|
let object = match garage
|
|
.object_table
|
|
.get(&bucket.to_string(), &key.to_string())
|
|
.await?
|
|
{
|
|
None => {
|
|
// No need to delete
|
|
return Err(Error::NotFound);
|
|
}
|
|
Some(o) => o,
|
|
};
|
|
|
|
let interesting_versions = object.versions().iter().filter(|v| {
|
|
v.data != ObjectVersionData::DeleteMarker && v.state != ObjectVersionState::Aborted
|
|
});
|
|
|
|
let mut must_delete = None;
|
|
let mut timestamp = now_msec();
|
|
for v in interesting_versions {
|
|
if v.timestamp + 1 > timestamp || must_delete.is_none() {
|
|
must_delete = Some(v.uuid);
|
|
}
|
|
timestamp = std::cmp::max(timestamp, v.timestamp + 1);
|
|
}
|
|
|
|
let deleted_version = match must_delete {
|
|
None => return Err(Error::NotFound),
|
|
Some(v) => v,
|
|
};
|
|
|
|
let version_uuid = gen_uuid();
|
|
|
|
let object = Object::new(
|
|
bucket.into(),
|
|
key.into(),
|
|
vec![ObjectVersion {
|
|
uuid: version_uuid,
|
|
timestamp: now_msec(),
|
|
mime_type: "application/x-delete-marker".into(),
|
|
size: 0,
|
|
state: ObjectVersionState::Complete,
|
|
data: ObjectVersionData::DeleteMarker,
|
|
}],
|
|
);
|
|
|
|
garage.object_table.insert(&object).await?;
|
|
return Ok((deleted_version, version_uuid));
|
|
}
|
|
|
|
pub async fn handle_delete(
|
|
garage: Arc<Garage>,
|
|
bucket: &str,
|
|
key: &str,
|
|
) -> Result<Response<BodyType>, Error> {
|
|
let (_deleted_version, delete_marker_version) =
|
|
handle_delete_internal(&garage, bucket, key).await?;
|
|
|
|
Ok(Response::builder()
|
|
.header("x-amz-version-id", hex::encode(delete_marker_version))
|
|
.body(empty_body())
|
|
.unwrap())
|
|
}
|
|
|
|
pub async fn handle_delete_objects(
|
|
garage: Arc<Garage>,
|
|
bucket: &str,
|
|
req: Request<Body>,
|
|
) -> Result<Response<BodyType>, Error> {
|
|
let body = hyper::body::to_bytes(req.into_body()).await?;
|
|
let cmd_xml = roxmltree::Document::parse(&std::str::from_utf8(&body)?)?;
|
|
let cmd = parse_delete_objects_xml(&cmd_xml)
|
|
.map_err(|e| Error::BadRequest(format!("Invald delete XML query: {}", e)))?;
|
|
|
|
let mut retxml = String::new();
|
|
writeln!(&mut retxml, r#"<?xml version="1.0" encoding="UTF-8"?>"#).unwrap();
|
|
writeln!(&mut retxml, "<DeleteObjectsOutput>").unwrap();
|
|
|
|
for obj in cmd.objects.iter() {
|
|
match handle_delete_internal(&garage, bucket, &obj.key).await {
|
|
Ok((deleted_version, delete_marker_version)) => {
|
|
writeln!(&mut retxml, "\t<Deleted>").unwrap();
|
|
writeln!(&mut retxml, "\t\t<Key>{}</Key>", obj.key).unwrap();
|
|
writeln!(
|
|
&mut retxml,
|
|
"\t\t<VersionId>{}</VersionId>",
|
|
hex::encode(deleted_version)
|
|
)
|
|
.unwrap();
|
|
writeln!(
|
|
&mut retxml,
|
|
"\t\t<DeleteMarkerVersionId>{}</DeleteMarkerVersionId>",
|
|
hex::encode(delete_marker_version)
|
|
)
|
|
.unwrap();
|
|
writeln!(&mut retxml, "\t</Deleted>").unwrap();
|
|
}
|
|
Err(e) => {
|
|
writeln!(&mut retxml, "\t<Error>").unwrap();
|
|
writeln!(&mut retxml, "\t\t<Code>{}</Code>", e.http_status_code()).unwrap();
|
|
writeln!(&mut retxml, "\t\t<Key>{}</Key>", obj.key).unwrap();
|
|
writeln!(
|
|
&mut retxml,
|
|
"\t\t<Message>{}</Message>",
|
|
xml_escape(&format!("{}", e))
|
|
)
|
|
.unwrap();
|
|
writeln!(&mut retxml, "\t</Error>").unwrap();
|
|
}
|
|
}
|
|
}
|
|
|
|
writeln!(&mut retxml, "</DeleteObjectsOutput>").unwrap();
|
|
|
|
Ok(Response::new(Box::new(BytesBody::from(
|
|
retxml.into_bytes(),
|
|
))))
|
|
}
|
|
|
|
struct DeleteRequest {
|
|
objects: Vec<DeleteObject>,
|
|
}
|
|
|
|
struct DeleteObject {
|
|
key: String,
|
|
}
|
|
|
|
fn parse_delete_objects_xml(xml: &roxmltree::Document) -> Result<DeleteRequest, String> {
|
|
let mut ret = DeleteRequest { objects: vec![] };
|
|
|
|
let root = xml.root();
|
|
let delete = match root.first_child() {
|
|
Some(del) => del,
|
|
None => return Err(format!("Delete tag not found")),
|
|
};
|
|
if !delete.has_tag_name("Delete") {
|
|
return Err(format!("Invalid root tag: {:?}", root));
|
|
}
|
|
|
|
for item in delete.children() {
|
|
if item.has_tag_name("Object") {
|
|
if let Some(key) = item.children().find(|e| e.has_tag_name("Key")) {
|
|
if let Some(key_str) = key.text() {
|
|
ret.objects.push(DeleteObject {
|
|
key: key_str.to_string(),
|
|
});
|
|
} else {
|
|
return Err(format!("No text for key: {:?}", key));
|
|
}
|
|
} else {
|
|
return Err(format!("No delete key for item: {:?}", item));
|
|
}
|
|
} else {
|
|
return Err(format!("Invalid delete item: {:?}", item));
|
|
}
|
|
}
|
|
|
|
Ok(ret)
|
|
}
|