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Implement ListParts

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This commit is contained in:
Quentin 2022-01-19 17:16:00 +01:00
parent fe003d6fbc
commit 440374524b
2 changed files with 389 additions and 4 deletions
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19
src/api/api_server.rs
View file

@ -294,6 +294,25 @@ async fn handler_inner(garage: Arc<Garage>, req: Request<Body>) -> Result<Respon
) )
.await .await
} }
Endpoint::ListParts {
key,
max_parts,
part_number_marker,
upload_id,
} => {
handle_list_parts(
garage,
&ListPartsQuery {
bucket_name,
bucket_id,
key,
upload_id,
part_number_marker: part_number_marker.map(|p| p.clamp(1, 10000)),
max_parts: max_parts.map(|p| p.clamp(1, 1000)).unwrap_or(1000),
},
)
.await
}
Endpoint::DeleteObjects {} => { Endpoint::DeleteObjects {} => {
handle_delete_objects(garage, bucket_id, req, content_sha256).await handle_delete_objects(garage, bucket_id, req, content_sha256).await
} }

374
src/api/s3_list.rs
View file

@ -1,3 +1,4 @@
use std::cmp::Ordering;
use std::collections::{BTreeMap, BTreeSet}; use std::collections::{BTreeMap, BTreeSet};
use std::iter::{Iterator, Peekable}; use std::iter::{Iterator, Peekable};
use std::sync::Arc; use std::sync::Arc;
@ -10,12 +11,18 @@ use garage_util::time::*;
use garage_model::garage::Garage; use garage_model::garage::Garage;
use garage_model::object_table::*; use garage_model::object_table::*;
use garage_model::version_table::Version;
use garage_table::EmptyKey;
use crate::encoding::*; use crate::encoding::*;
use crate::error::*; use crate::error::*;
use crate::s3_put; use crate::s3_put;
use crate::s3_xml; use crate::s3_xml;
const DUMMY_NAME: &str = "Dummy Key";
const DUMMY_KEY: &str = "GKDummyKey";
#[derive(Debug)] #[derive(Debug)]
pub struct ListQueryCommon { pub struct ListQueryCommon {
pub bucket_name: String, pub bucket_name: String,
@ -42,6 +49,16 @@ pub struct ListMultipartUploadsQuery {
pub common: ListQueryCommon, pub common: ListQueryCommon,
} }
#[derive(Debug)]
pub struct ListPartsQuery {
pub bucket_name: String,
pub bucket_id: Uuid,
pub key: String,
pub upload_id: String,
pub part_number_marker: Option<u64>,
pub max_parts: u64,
}
pub async fn handle_list( pub async fn handle_list(
garage: Arc<Garage>, garage: Arc<Garage>,
query: &ListObjectsQuery, query: &ListObjectsQuery,
@ -54,6 +71,7 @@ pub async fn handle_list(
} }
}; };
debug!("ListObjects {:?}", query);
let mut acc = query.build_accumulator(); let mut acc = query.build_accumulator();
let pagination = fetch_list_entries(&query.common, query.begin()?, &mut acc, &io).await?; let pagination = fetch_list_entries(&query.common, query.begin()?, &mut acc, &io).await?;
@ -152,6 +170,7 @@ pub async fn handle_list_multipart_upload(
} }
}; };
debug!("ListMultipartUploads {:?}", query);
let mut acc = query.build_accumulator(); let mut acc = query.build_accumulator();
let pagination = fetch_list_entries(&query.common, query.begin()?, &mut acc, &io).await?; let pagination = fetch_list_entries(&query.common, query.begin()?, &mut acc, &io).await?;
@ -208,12 +227,12 @@ pub async fn handle_list_multipart_upload(
upload_id: s3_xml::Value(hex::encode(uuid)), upload_id: s3_xml::Value(hex::encode(uuid)),
storage_class: s3_xml::Value("STANDARD".to_string()), storage_class: s3_xml::Value("STANDARD".to_string()),
initiator: s3_xml::Initiator { initiator: s3_xml::Initiator {
display_name: s3_xml::Value("Dummy Key".to_string()), display_name: s3_xml::Value(DUMMY_NAME.to_string()),
id: s3_xml::Value("GKDummyKey".to_string()), id: s3_xml::Value(DUMMY_KEY.to_string()),
}, },
owner: s3_xml::Owner { owner: s3_xml::Owner {
display_name: s3_xml::Value("Dummy Key".to_string()), display_name: s3_xml::Value(DUMMY_NAME.to_string()),
id: s3_xml::Value("GKDummyKey".to_string()), id: s3_xml::Value(DUMMY_KEY.to_string()),
}, },
}) })
.collect(), .collect(),
@ -233,6 +252,57 @@ pub async fn handle_list_multipart_upload(
.body(Body::from(xml.into_bytes()))?) .body(Body::from(xml.into_bytes()))?)
} }
pub async fn handle_list_parts(
garage: Arc<Garage>,
query: &ListPartsQuery,
) -> Result<Response<Body>, Error> {
debug!("ListParts {:?}", query);
let upload_id = s3_put::decode_upload_id(&query.upload_id)?;
let (object, version) = futures::try_join!(
garage.object_table.get(&query.bucket_id, &query.key),
garage.version_table.get(&upload_id, &EmptyKey),
)?;
let (info, next) = fetch_part_info(query, object, version, upload_id)?;
let result = s3_xml::ListPartsResult {
xmlns: (),
bucket: s3_xml::Value(query.bucket_name.to_string()),
key: s3_xml::Value(query.key.to_string()),
upload_id: s3_xml::Value(query.upload_id.to_string()),
part_number_marker: query.part_number_marker.map(|e| s3_xml::IntValue(e as i64)),
next_part_number_marker: next.map(|e| s3_xml::IntValue(e as i64)),
max_parts: s3_xml::IntValue(query.max_parts as i64),
is_truncated: s3_xml::Value(next.map(|_| "true").unwrap_or("false").to_string()),
parts: info
.iter()
.map(|part| s3_xml::PartItem {
etag: s3_xml::Value(format!("\"{}\"", part.etag)),
last_modified: s3_xml::Value(msec_to_rfc3339(part.timestamp)),
part_number: s3_xml::IntValue(part.part_number as i64),
size: s3_xml::IntValue(part.size as i64),
})
.collect(),
initiator: s3_xml::Initiator {
display_name: s3_xml::Value(DUMMY_NAME.to_string()),
id: s3_xml::Value(DUMMY_KEY.to_string()),
},
owner: s3_xml::Owner {
display_name: s3_xml::Value(DUMMY_NAME.to_string()),
id: s3_xml::Value(DUMMY_KEY.to_string()),
},
storage_class: s3_xml::Value("STANDARD".to_string()),
};
let xml = s3_xml::to_xml_with_header(&result)?;
Ok(Response::builder()
.header("Content-Type", "application/xml")
.body(Body::from(xml.into_bytes()))?)
}
/* /*
* Private enums and structs * Private enums and structs
*/ */
@ -250,6 +320,14 @@ struct UploadInfo {
timestamp: u64, timestamp: u64,
} }
#[derive(Debug, PartialEq)]
struct PartInfo {
etag: String,
timestamp: u64,
part_number: u64,
size: u64,
}
enum ExtractionResult { enum ExtractionResult {
NoMore, NoMore,
Filled, Filled,
@ -364,6 +442,109 @@ where
} }
} }
fn fetch_part_info(
query: &ListPartsQuery,
object: Option<Object>,
version: Option<Version>,
upload_id: Uuid,
) -> Result<(Vec<PartInfo>, Option<u64>), Error> {
// Check results
let object = object.ok_or(Error::NoSuchKey)?;
let obj_version = object
.versions()
.iter()
.find(|v| v.uuid == upload_id && v.is_uploading())
.ok_or(Error::NoSuchUpload)?;
let version = version.ok_or(Error::NoSuchKey)?;
// Cut the beginning of our 2 vectors if required
let (etags, blocks) = match &query.part_number_marker {
Some(marker) => {
let next = marker + 1;
let part_idx = into_ok_or_err(
version
.parts_etags
.items()
.binary_search_by(|(part_num, _)| part_num.cmp(&next)),
);
let parts = &version.parts_etags.items()[part_idx..];
let block_idx = into_ok_or_err(
version
.blocks
.items()
.binary_search_by(|(vkey, _)| vkey.part_number.cmp(&next)),
);
let blocks = &version.blocks.items()[block_idx..];
(parts, blocks)
}
None => (version.parts_etags.items(), version.blocks.items()),
};
// Use the block vector to compute a (part_number, size) vector
let mut size = Vec::<(u64, u64)>::new();
blocks.iter().for_each(|(key, val)| {
let mut new_size = val.size;
match size.pop() {
Some((part_number, size)) if part_number == key.part_number => new_size += size,
Some(v) => size.push(v),
None => (),
}
size.push((key.part_number, new_size))
});
// Merge the etag vector and size vector to build a PartInfo vector
let max_parts = query.max_parts as usize;
let (mut etag_iter, mut size_iter) = (etags.iter().peekable(), size.iter().peekable());
let mut info = Vec::<PartInfo>::with_capacity(max_parts);
while info.len() < max_parts {
match (etag_iter.peek(), size_iter.peek()) {
(Some((ep, etag)), Some((sp, size))) => match ep.cmp(sp) {
Ordering::Less => {
debug!("ETag information ignored due to missing corresponding block information. Query: {:?}", query);
etag_iter.next();
}
Ordering::Equal => {
info.push(PartInfo {
etag: etag.to_string(),
timestamp: obj_version.timestamp,
part_number: *ep,
size: *size,
});
etag_iter.next();
size_iter.next();
}
Ordering::Greater => {
debug!("Block information ignored due to missing corresponding ETag information. Query: {:?}", query);
size_iter.next();
}
},
(None, None) => return Ok((info, None)),
_ => {
debug!(
"Additional block or ETag information ignored. Query: {:?}",
query
);
return Ok((info, None));
}
}
}
match info.last() {
Some(part_info) => {
let pagination = Some(part_info.part_number);
Ok((info, pagination))
}
None => Ok((info, None)),
}
}
/* /*
* ListQuery logic * ListQuery logic
*/ */
@ -715,6 +896,14 @@ impl ExtractAccumulator for UploadAccumulator {
* Utility functions * Utility functions
*/ */
/// This is a stub for Result::into_ok_or_err that is not yet in Rust stable
fn into_ok_or_err<T>(r: Result<T, T>) -> T {
match r {
Ok(r) => r,
Err(r) => r,
}
}
/// Returns the common prefix of the object given the query prefix and delimiter /// Returns the common prefix of the object given the query prefix and delimiter
fn common_prefix<'a>(object: &'a Object, query: &ListQueryCommon) -> Option<&'a str> { fn common_prefix<'a>(object: &'a Object, query: &ListQueryCommon) -> Option<&'a str> {
match &query.delimiter { match &query.delimiter {
@ -766,6 +955,8 @@ fn key_after_prefix(pfx: &str) -> Option<String> {
#[cfg(test)] #[cfg(test)]
mod tests { mod tests {
use super::*; use super::*;
use garage_model::version_table::*;
use garage_util::*;
use std::iter::FromIterator; use std::iter::FromIterator;
const TS: u64 = 1641394898314; const TS: u64 = 1641394898314;
@ -1014,4 +1205,179 @@ mod tests {
Ok(()) Ok(())
} }
fn version() -> Version {
let uuid = Uuid::from([0x08; 32]);
let blocks = vec![
(
VersionBlockKey {
part_number: 1,
offset: 1,
},
VersionBlock {
hash: uuid,
size: 3,
},
),
(
VersionBlockKey {
part_number: 1,
offset: 2,
},
VersionBlock {
hash: uuid,
size: 2,
},
),
(
VersionBlockKey {
part_number: 2,
offset: 1,
},
VersionBlock {
hash: uuid,
size: 8,
},
),
(
VersionBlockKey {
part_number: 5,
offset: 1,
},
VersionBlock {
hash: uuid,
size: 7,
},
),
(
VersionBlockKey {
part_number: 8,
offset: 1,
},
VersionBlock {
hash: uuid,
size: 5,
},
),
];
let etags = vec![
(1, "etag1".to_string()),
(3, "etag2".to_string()),
(5, "etag3".to_string()),
(8, "etag4".to_string()),
(9, "etag5".to_string()),
];
Version {
bucket_id: uuid,
key: "a".to_string(),
uuid: uuid,
deleted: false.into(),
blocks: crdt::Map::<VersionBlockKey, VersionBlock>::from_iter(blocks),
parts_etags: crdt::Map::<u64, String>::from_iter(etags),
}
}
fn obj() -> Object {
Object::new(bucket(), "d".to_string(), vec![objup_version([0x08; 32])])
}
#[test]
fn test_fetch_part_info() -> Result<(), Error> {
let uuid = Uuid::from([0x08; 32]);
let mut query = ListPartsQuery {
bucket_name: "a".to_string(),
bucket_id: uuid,
key: "a".to_string(),
upload_id: "xx".to_string(),
part_number_marker: None,
max_parts: 2,
};
assert!(
fetch_part_info(&query, None, None, uuid).is_err(),
"No object and version should fail"
);
assert!(
fetch_part_info(&query, Some(obj()), None, uuid).is_err(),
"No version should faild"
);
assert!(
fetch_part_info(&query, None, Some(version()), uuid).is_err(),
"No object should fail"
);
// Start from the beginning but with limited size to trigger pagination
let (info, pagination) = fetch_part_info(&query, Some(obj()), Some(version()), uuid)?;
assert_eq!(pagination.unwrap(), 5);
assert_eq!(
info,
vec![
PartInfo {
etag: "etag1".to_string(),
timestamp: TS,
part_number: 1,
size: 5
},
PartInfo {
etag: "etag3".to_string(),
timestamp: TS,
part_number: 5,
size: 7
},
]
);
// Use previous pagination to make a new request
query.part_number_marker = Some(pagination.unwrap());
let (info, pagination) = fetch_part_info(&query, Some(obj()), Some(version()), uuid)?;
assert!(pagination.is_none());
assert_eq!(
info,
vec![PartInfo {
etag: "etag4".to_string(),
timestamp: TS,
part_number: 8,
size: 5
},]
);
// Trying to access a part that is way larger than registered ones
query.part_number_marker = Some(9999);
let (info, pagination) = fetch_part_info(&query, Some(obj()), Some(version()), uuid)?;
assert!(pagination.is_none());
assert_eq!(info, vec![]);
// Try without any limitation
query.max_parts = 1000;
query.part_number_marker = None;
let (info, pagination) = fetch_part_info(&query, Some(obj()), Some(version()), uuid)?;
assert!(pagination.is_none());
assert_eq!(
info,
vec![
PartInfo {
etag: "etag1".to_string(),
timestamp: TS,
part_number: 1,
size: 5
},
PartInfo {
etag: "etag3".to_string(),
timestamp: TS,
part_number: 5,
size: 7
},
PartInfo {
etag: "etag4".to_string(),
timestamp: TS,
part_number: 8,
size: 5
},
]
);
Ok(())
}
} }