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Implement HTTP ranges in get

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This commit is contained in:
Alex Auvolat 2020-05-04 13:09:23 +00:00
parent 16fbb32fd3
commit b46a7788d1
7 changed files with 229 additions and 99 deletions
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7
Cargo.lock generated
View file

@ -371,6 +371,7 @@ dependencies = [
"hex 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
"hmac 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
"http 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
"http-range 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
"httpdate 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
"hyper 0.13.5 (registry+https://github.com/rust-lang/crates.io-index)",
"log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
@ -568,6 +569,11 @@ dependencies = [
"http 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
]
[[package]]
name = "http-range"
version = "0.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "httparse"
version = "1.3.4"
@ -1556,6 +1562,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
"checksum hmac 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)" = "5dcb5e64cda4c23119ab41ba960d1e170a774c8e4b9d9e6a9bc18aabf5e59695"
"checksum http 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "28d569972648b2c512421b5f2a405ad6ac9666547189d0c5477a3f200f3e02f9"
"checksum http-body 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "13d5ff830006f7646652e057693569bfe0d51760c0085a071769d142a205111b"
"checksum http-range 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "5f2e4003e6fd05ea9109db00415e670b11f511a42e567ff2d5d771cbdfa24e02"
"checksum httparse 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "cd179ae861f0c2e53da70d892f5f3029f9594be0c41dc5269cd371691b1dc2f9"
"checksum httpdate 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "494b4d60369511e7dea41cf646832512a94e542f68bb9c49e54518e0f468eb47"
"checksum humantime 1.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "df004cfca50ef23c36850aaaa59ad52cc70d0e90243c3c7737a4dd32dc7a3c4f"

1
src/api/Cargo.toml
View file

@ -32,3 +32,4 @@ url = "2.1"
httpdate = "0.3"
percent-encoding = "2.1.0"
roxmltree = "0.11"
http-range = "0.1"

39
src/api/api_server.rs
View file

@ -73,8 +73,7 @@ async fn handler_inner(
req: Request<Body>,
) -> Result<Response<BodyType>, Error> {
let path = req.uri().path().to_string();
let path = percent_encoding::percent_decode_str(&path)
.decode_utf8()?;
let path = percent_encoding::percent_decode_str(&path).decode_utf8()?;
let (bucket, key) = parse_bucket_key(&path)?;
if bucket.len() == 0 {
@ -110,7 +109,7 @@ async fn handler_inner(
}
&Method::GET => {
// GetObject query
Ok(handle_get(garage, &bucket, &key).await?)
Ok(handle_get(garage, &req, &bucket, &key).await?)
}
&Method::PUT => {
if params.contains_key(&"partnumber".to_string())
@ -123,8 +122,8 @@ async fn handler_inner(
} else if req.headers().contains_key("x-amz-copy-source") {
// CopyObject query
let copy_source = req.headers().get("x-amz-copy-source").unwrap().to_str()?;
let copy_source = percent_encoding::percent_decode_str(&copy_source)
.decode_utf8()?;
let copy_source =
percent_encoding::percent_decode_str(&copy_source).decode_utf8()?;
let (source_bucket, source_key) = parse_bucket_key(&copy_source)?;
if !api_key.allow_read(&source_bucket) {
return Err(Error::Forbidden(format!(
@ -228,22 +227,20 @@ async fn handler_inner(
)
.await?)
}
&Method::POST => {
if params.contains_key(&"delete".to_string()) {
// DeleteObjects
Ok(handle_delete_objects(garage, bucket, req).await?)
} else {
println!(
"Body: {}",
std::str::from_utf8(&hyper::body::to_bytes(req.into_body()).await?)
.unwrap_or("<invalid utf8>")
);
Err(Error::BadRequest(format!("Unsupported call")))
}
}
_ => {
Err(Error::BadRequest(format!("Invalid method")))
}
&Method::POST => {
if params.contains_key(&"delete".to_string()) {
// DeleteObjects
Ok(handle_delete_objects(garage, bucket, req).await?)
} else {
println!(
"Body: {}",
std::str::from_utf8(&hyper::body::to_bytes(req.into_body()).await?)
.unwrap_or("<invalid utf8>")
);
Err(Error::BadRequest(format!("Unsupported call")))
}
}
_ => Err(Error::BadRequest(format!("Invalid method"))),
}
}
}

161
src/api/s3_delete.rs
View file

@ -1,5 +1,5 @@
use std::sync::Arc;
use std::fmt::Write;
use std::sync::Arc;
use hyper::{Body, Request, Response};
@ -9,10 +9,14 @@ use garage_util::error::Error;
use garage_core::garage::Garage;
use garage_core::object_table::*;
use crate::http_util::*;
use crate::encoding::*;
use crate::http_util::*;
async fn handle_delete_internal(garage: &Garage, bucket: &str, key: &str) -> Result<(UUID, UUID), Error> {
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())
@ -32,16 +36,16 @@ async fn handle_delete_internal(garage: &Garage, bucket: &str, key: &str) -> Res
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);
}
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 deleted_version = match must_delete {
None => return Err(Error::NotFound),
Some(v) => v,
};
let version_uuid = gen_uuid();
@ -62,8 +66,13 @@ async fn handle_delete_internal(garage: &Garage, bucket: &str, key: &str) -> Res
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?;
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))
@ -71,76 +80,98 @@ pub async fn handle_delete(garage: Arc<Garage>, bucket: &str, key: &str) -> Resu
.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)))?;
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();
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();
}
}
}
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()))))
Ok(Response::new(Box::new(BytesBody::from(
retxml.into_bytes(),
))))
}
struct DeleteRequest {
objects: Vec<DeleteObject>,
objects: Vec<DeleteObject>,
}
struct DeleteObject {
key: String,
key: String,
}
fn parse_delete_objects_xml(xml: &roxmltree::Document) -> Result<DeleteRequest, String> {
let mut ret = DeleteRequest{objects: vec![]};
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));
}
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));
}
}
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)
Ok(ret)
}

96
src/api/s3_get.rs
View file

@ -3,7 +3,7 @@ use std::time::{Duration, UNIX_EPOCH};
use futures::stream::*;
use hyper::body::Bytes;
use hyper::{Response, StatusCode};
use hyper::{Body, Request, Response, StatusCode};
use garage_util::error::Error;
@ -22,6 +22,7 @@ fn object_headers(version: &ObjectVersion) -> http::response::Builder {
.header("Content-Type", version.mime_type.to_string())
.header("Content-Length", format!("{}", version.size))
.header("Last-Modified", date_str)
.header("Accept-Ranges", format!("bytes"))
}
pub async fn handle_head(
@ -59,6 +60,7 @@ pub async fn handle_head(
pub async fn handle_get(
garage: Arc<Garage>,
req: &Request<Body>,
bucket: &str,
key: &str,
) -> Result<Response<BodyType>, Error> {
@ -82,6 +84,25 @@ pub async fn handle_get(
None => return Err(Error::NotFound),
};
let range = match req.headers().get("range") {
Some(range) => {
let range_str = range
.to_str()
.map_err(|e| Error::BadRequest(format!("Invalid range header: {}", e)))?;
let mut ranges = http_range::HttpRange::parse(range_str, last_v.size)
.map_err(|_e| Error::BadRequest(format!("Invalid range")))?;
if ranges.len() > 1 {
return Err(Error::BadRequest(format!("Multiple ranges not supported")));
} else {
ranges.pop()
}
}
None => None,
};
if let Some(range) = range {
return handle_get_range(garage, last_v, range.start, range.start + range.length).await;
}
let resp_builder = object_headers(&last_v).status(StatusCode::OK);
match &last_v.data {
@ -131,3 +152,76 @@ pub async fn handle_get(
}
}
}
pub async fn handle_get_range(
garage: Arc<Garage>,
version: &ObjectVersion,
begin: u64,
end: u64,
) -> Result<Response<BodyType>, Error> {
if end > version.size {
return Err(Error::BadRequest(format!("Range not included in file")));
}
let resp_builder = object_headers(&version)
.header(
"Content-Range",
format!("bytes {}-{}/{}", begin, end, version.size),
)
.status(StatusCode::PARTIAL_CONTENT);
match &version.data {
ObjectVersionData::Uploading => Err(Error::Message(format!(
"Version is_complete() but data is stil Uploading (internal error)"
))),
ObjectVersionData::DeleteMarker => Err(Error::NotFound),
ObjectVersionData::Inline(bytes) => {
if end as usize <= bytes.len() {
let body: BodyType = Box::new(BytesBody::from(
bytes[begin as usize..end as usize].to_vec(),
));
Ok(resp_builder.body(body)?)
} else {
Err(Error::Message(format!("Internal error: requested range not present in inline bytes when it should have been")))
}
}
ObjectVersionData::FirstBlock(_first_block_hash) => {
let version = garage.version_table.get(&version.uuid, &EmptyKey).await?;
let version = match version {
Some(v) => v,
None => return Err(Error::NotFound),
};
let blocks = version
.blocks()
.iter()
.cloned()
.filter(|block| block.offset + block.size > begin && block.offset < end)
.collect::<Vec<_>>();
let body_stream = futures::stream::iter(blocks)
.map(move |block| {
let garage = garage.clone();
async move {
let data = garage.block_manager.rpc_get_block(&block.hash).await?;
let start_in_block = if block.offset > begin {
0
} else {
begin - block.offset
};
let end_in_block = if block.offset + block.size < end {
block.size
} else {
end - block.offset
};
Ok(Bytes::from(
data[start_in_block as usize..end_in_block as usize].to_vec(),
))
}
})
.buffered(2);
let body: BodyType = Box::new(StreamBody::new(Box::pin(body_stream)));
Ok(resp_builder.body(body)?)
}
}
}

12
src/api/s3_list.rs
View file

@ -58,10 +58,10 @@ pub async fn handle_list(
break 'query_loop;
}
if let Some(version) = object.versions().iter().find(|x| x.is_data()) {
if result_keys.len() + result_common_prefixes.len() >= max_keys {
truncated = true;
break 'query_loop;
}
if result_keys.len() + result_common_prefixes.len() >= max_keys {
truncated = true;
break 'query_loop;
}
let common_prefix = if delimiter.len() > 0 {
let relative_key = &object.key[prefix.len()..];
match relative_key.find(delimiter) {
@ -88,8 +88,8 @@ pub async fn handle_list(
}
}
if objects.len() < max_keys + 1 {
truncated = false;
break 'query_loop;
truncated = false;
break 'query_loop;
}
if objects.len() > 0 {
next_chunk_start = objects[objects.len() - 1].key.clone();

12
src/util/error.rs
View file

@ -116,13 +116,13 @@ impl<T> From<tokio::sync::mpsc::error::SendError<T>> for Error {
}
impl From<std::str::Utf8Error> for Error {
fn from(e: std::str::Utf8Error) -> Error {
Error::BadRequest(format!("Invalid UTF-8: {}", e))
}
fn from(e: std::str::Utf8Error) -> Error {
Error::BadRequest(format!("Invalid UTF-8: {}", e))
}
}
impl From<roxmltree::Error> for Error {
fn from(e: roxmltree::Error) -> Error {
Error::BadRequest(format!("Invalid XML: {}", e))
}
fn from(e: roxmltree::Error) -> Error {
Error::BadRequest(format!("Invalid XML: {}", e))
}
}