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garage/src/api/s3_put.rs

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cargo fmt
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use std::collections::{BTreeMap, VecDeque};
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use std::fmt::Write;
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use std::sync::Arc;
use futures::stream::*;
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use hyper::{Body, Request, Response};
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use md5::{Digest as Md5Digest, Md5};
use sha2::{Digest as Sha256Digest, Sha256};
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use garage_table::*;
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use garage_util::data::*;
use garage_util::error::Error;
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use garage_model::block::INLINE_THRESHOLD;
use garage_model::block_ref_table::*;
use garage_model::garage::Garage;
use garage_model::object_table::*;
use garage_model::version_table::*;
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use crate::encoding::*;
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pub async fn handle_put(
garage: Arc<Garage>,
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req: Request<Body>,
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bucket: &str,
key: &str,
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content_sha256: Option<Hash>,
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) -> Result<Response<Body>, Error> {
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let version_uuid = gen_uuid();
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let headers = get_headers(&req)?;
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let content_md5 = match req.headers().get("content-md5") {
Some(x) => Some(x.to_str()?.to_string()),
None => None,
};
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let body = req.into_body();
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let mut chunker = BodyChunker::new(body, garage.config.block_size);
let first_block = match chunker.next().await? {
Some(x) => x,
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None => vec![],
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};
let mut object_version = ObjectVersion {
uuid: version_uuid,
timestamp: now_msec(),
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state: ObjectVersionState::Uploading(headers.clone()),
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};
if first_block.len() < INLINE_THRESHOLD {
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let mut md5sum = Md5::new();
md5sum.update(&first_block[..]);
let etag = hex::encode(md5sum.finalize());
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cargo fmt
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object_version.state = ObjectVersionState::Complete(ObjectVersionData::Inline(
ObjectVersionMeta {
headers,
size: first_block.len() as u64,
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etag: etag.clone(),
cargo fmt
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},
first_block,
));
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let object = Object::new(bucket.into(), key.into(), vec![object_version]);
garage.object_table.insert(&object).await?;
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return Ok(put_response(version_uuid, etag));
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}
let version = Version::new(version_uuid, bucket.into(), key.into(), false, vec![]);
let first_block_hash = hash(&first_block[..]);
let object = Object::new(bucket.into(), key.into(), vec![object_version.clone()]);
garage.object_table.insert(&object).await?;
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let (total_size, md5sum, sha256sum) = read_and_put_blocks(
Work on API
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&garage,
version,
1,
first_block,
first_block_hash,
&mut chunker,
)
.await?;
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if let Some(expected_sha256) = content_sha256 {
if expected_sha256 != sha256sum {
return Err(Error::Message(format!(
"Unable to validate x-amz-content-sha256"
)));
}
}
if let Some(expected_md5) = content_md5 {
if expected_md5.trim_matches('"') != md5sum {
return Err(Error::Message(format!("Unable to validate content-md5")));
}
}
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// TODO: if at any step we have an error, we should undo everything we did
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object_version.state = ObjectVersionState::Complete(ObjectVersionData::FirstBlock(
cargo fmt
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ObjectVersionMeta {
headers,
size: total_size,
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etag: md5sum.clone(),
cargo fmt
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},
first_block_hash,
));
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let object = Object::new(bucket.into(), key.into(), vec![object_version]);
garage.object_table.insert(&object).await?;
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Ok(put_response(version_uuid, md5sum))
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}
async fn read_and_put_blocks(
garage: &Arc<Garage>,
version: Version,
part_number: u64,
first_block: Vec<u8>,
first_block_hash: Hash,
chunker: &mut BodyChunker,
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) -> Result<(u64, String, Hash), Error> {
let mut md5sum = Md5::new();
let mut sha256sum = Sha256::new();
md5sum.update(&first_block[..]);
sha256sum.input(&first_block[..]);
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let mut next_offset = first_block.len();
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let mut put_curr_version_block = put_block_meta(
garage.clone(),
&version,
part_number,
0,
first_block_hash,
first_block.len() as u64,
);
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let mut put_curr_block = garage
.block_manager
.rpc_put_block(first_block_hash, first_block);
loop {
let (_, _, next_block) =
futures::try_join!(put_curr_block, put_curr_version_block, chunker.next())?;
if let Some(block) = next_block {
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md5sum.update(&block[..]);
sha256sum.input(&block[..]);
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let block_hash = hash(&block[..]);
let block_len = block.len();
Work on API
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put_curr_version_block = put_block_meta(
garage.clone(),
&version,
part_number,
next_offset as u64,
block_hash,
block_len as u64,
);
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put_curr_block = garage.block_manager.rpc_put_block(block_hash, block);
next_offset += block_len;
} else {
break;
}
}
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let total_size = next_offset as u64;
let md5sum = hex::encode(md5sum.finalize());
let sha256sum = sha256sum.result();
let mut hash = [0u8; 32];
hash.copy_from_slice(&sha256sum[..]);
let sha256sum = Hash::from(hash);
Ok((total_size, md5sum, sha256sum))
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}
async fn put_block_meta(
garage: Arc<Garage>,
version: &Version,
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part_number: u64,
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offset: u64,
hash: Hash,
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size: u64,
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) -> Result<(), Error> {
// TODO: don't clone, restart from empty block list ??
let mut version = version.clone();
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version
.add_block(VersionBlock {
part_number,
offset,
hash,
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size,
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})
.unwrap();
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let block_ref = BlockRef {
block: hash,
version: version.uuid,
deleted: false,
};
futures::try_join!(
garage.version_table.insert(&version),
garage.block_ref_table.insert(&block_ref),
)?;
Ok(())
}
struct BodyChunker {
body: Body,
read_all: bool,
block_size: usize,
buf: VecDeque<u8>,
}
impl BodyChunker {
fn new(body: Body, block_size: usize) -> Self {
Self {
body,
read_all: false,
block_size,
buf: VecDeque::new(),
}
}
async fn next(&mut self) -> Result<Option<Vec<u8>>, Error> {
while !self.read_all && self.buf.len() < self.block_size {
if let Some(block) = self.body.next().await {
let bytes = block?;
trace!("Body next: {} bytes", bytes.len());
self.buf.extend(&bytes[..]);
} else {
self.read_all = true;
}
}
if self.buf.len() == 0 {
Ok(None)
} else if self.buf.len() <= self.block_size {
let block = self.buf.drain(..).collect::<Vec<u8>>();
Ok(Some(block))
} else {
let block = self.buf.drain(..self.block_size).collect::<Vec<u8>>();
Ok(Some(block))
}
}
}
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pub fn put_response(version_uuid: UUID, etag: String) -> Response<Body> {
Slightly improved S3 compatibility - ListBucket does not require any of the parameters (delimiter, prefix, max-keys, etc) - URLs are properly percent_decoded - PutObject and DeleteObject calls now answer correctly (empty body, version id in the x-amz-version-id: header)
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Response::builder()
.header("x-amz-version-id", hex::encode(version_uuid))
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.header("ETag", etag)
cargo fmt
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// TODO ETag
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.body(Body::from(vec![]))
Slightly improved S3 compatibility - ListBucket does not require any of the parameters (delimiter, prefix, max-keys, etc) - URLs are properly percent_decoded - PutObject and DeleteObject calls now answer correctly (empty body, version id in the x-amz-version-id: header)
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.unwrap()
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}
pub async fn handle_create_multipart_upload(
garage: Arc<Garage>,
req: &Request<Body>,
bucket: &str,
key: &str,
Update to Hyper 0.13.6 that accepts non-Sync streams in wrap_stream. Simplifies code and makes it possible to publish on crates.io
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) -> Result<Response<Body>, Error> {
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let version_uuid = gen_uuid();
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let headers = get_headers(req)?;
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let object_version = ObjectVersion {
uuid: version_uuid,
timestamp: now_msec(),
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state: ObjectVersionState::Uploading(headers),
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};
let object = Object::new(bucket.to_string(), key.to_string(), vec![object_version]);
garage.object_table.insert(&object).await?;
let mut xml = String::new();
writeln!(&mut xml, r#"<?xml version="1.0" encoding="UTF-8"?>"#).unwrap();
writeln!(
&mut xml,
r#"<InitiateMultipartUploadResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">"#
)
.unwrap();
writeln!(&mut xml, "\t<Bucket>{}</Bucket>", bucket).unwrap();
writeln!(&mut xml, "\t<Key>{}</Key>", xml_escape(key)).unwrap();
writeln!(
&mut xml,
"\t<UploadId>{}</UploadId>",
hex::encode(version_uuid)
)
.unwrap();
writeln!(&mut xml, "</InitiateMultipartUploadResult>").unwrap();
Update to Hyper 0.13.6 that accepts non-Sync streams in wrap_stream. Simplifies code and makes it possible to publish on crates.io
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Ok(Response::new(Body::from(xml.into_bytes())))
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}
pub async fn handle_put_part(
garage: Arc<Garage>,
req: Request<Body>,
bucket: &str,
key: &str,
part_number_str: &str,
upload_id: &str,
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content_sha256: Option<Hash>,
Update to Hyper 0.13.6 that accepts non-Sync streams in wrap_stream. Simplifies code and makes it possible to publish on crates.io
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) -> Result<Response<Body>, Error> {
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// Check parameters
let part_number = part_number_str
.parse::<u64>()
.map_err(|e| Error::BadRequest(format!("Invalid part number: {}", e)))?;
Work on API
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let version_uuid =
uuid_from_str(upload_id).map_err(|_| Error::BadRequest(format!("Invalid upload ID")))?;
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let content_md5 = match req.headers().get("content-md5") {
Some(x) => Some(x.to_str()?.to_string()),
None => None,
};
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// Read first chuck, and at the same time try to get object to see if it exists
let mut chunker = BodyChunker::new(req.into_body(), garage.config.block_size);
let bucket = bucket.to_string();
let key = key.to_string();
let get_object_fut = garage.object_table.get(&bucket, &key);
let get_first_block_fut = chunker.next();
let (object, first_block) = futures::try_join!(get_object_fut, get_first_block_fut)?;
// Check object is valid and multipart block can be accepted
let first_block = match first_block {
None => return Err(Error::BadRequest(format!("Empty body"))),
Some(x) => x,
};
let object = match object {
None => return Err(Error::BadRequest(format!("Object not found"))),
Some(x) => x,
};
cargo fmt
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if !object
.versions()
.iter()
.any(|v| v.uuid == version_uuid && v.is_uploading())
{
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return Err(Error::BadRequest(format!(
"Multipart upload does not exist or is otherwise invalid"
)));
}
// Copy block to store
let version = Version::new(version_uuid, bucket.into(), key.into(), false, vec![]);
let first_block_hash = hash(&first_block[..]);
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let (_, md5sum, sha256sum) = read_and_put_blocks(
Work on API
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&garage,
version,
part_number,
first_block,
first_block_hash,
&mut chunker,
)
.await?;
Implement multipart uploads
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Validate content MD5 and SHA256 sums for PutObject and UploadPart
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if let Some(expected_md5) = content_md5 {
if expected_md5.trim_matches('"') != md5sum {
return Err(Error::Message(format!("Unable to validate content-md5")));
}
}
if let Some(expected_sha256) = content_sha256 {
if expected_sha256 != sha256sum {
return Err(Error::Message(format!(
"Unable to validate x-amz-content-sha256"
)));
}
}
Update to Hyper 0.13.6 that accepts non-Sync streams in wrap_stream. Simplifies code and makes it possible to publish on crates.io
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Ok(Response::new(Body::from(vec![])))
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}
pub async fn handle_complete_multipart_upload(
garage: Arc<Garage>,
_req: Request<Body>,
bucket: &str,
key: &str,
upload_id: &str,
Update to Hyper 0.13.6 that accepts non-Sync streams in wrap_stream. Simplifies code and makes it possible to publish on crates.io
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) -> Result<Response<Body>, Error> {
Work on API
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let version_uuid =
uuid_from_str(upload_id).map_err(|_| Error::BadRequest(format!("Invalid upload ID")))?;
Implement multipart uploads
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let bucket = bucket.to_string();
let key = key.to_string();
let (object, version) = futures::try_join!(
garage.object_table.get(&bucket, &key),
garage.version_table.get(&version_uuid, &EmptyKey),
)?;
let object = match object {
None => return Err(Error::BadRequest(format!("Object not found"))),
Some(x) => x,
};
cargo fmt
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let object_version = object
.versions()
.iter()
.find(|v| v.uuid == version_uuid && v.is_uploading());
Implement multipart uploads
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let mut object_version = match object_version {
Work on API
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None => {
return Err(Error::BadRequest(format!(
"Multipart upload does not exist or has already been completed"
)))
}
Implement multipart uploads
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Some(x) => x.clone(),
};
let version = match version {
None => return Err(Error::BadRequest(format!("Version not found"))),
Some(x) => x,
};
if version.blocks().len() == 0 {
return Err(Error::BadRequest(format!("No data was uploaded")));
}
cargo fmt
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let headers = match object_version.state {
ObjectVersionState::Uploading(headers) => headers.clone(),
_ => unreachable!(),
};
Implement multipart uploads
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// TODO: check that all the parts that they pretend they gave us are indeed there
// TODO: check MD5 sum of all uploaded parts? but that would mean we have to store them somewhere...
Work on API
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let total_size = version
.blocks()
.iter()
.map(|x| x.size)
.fold(0, |x, y| x + y);
cargo fmt
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object_version.state = ObjectVersionState::Complete(ObjectVersionData::FirstBlock(
ObjectVersionMeta {
headers,
size: total_size,
etag: "".to_string(), // TODO
},
version.blocks()[0].hash,
));
Migrate S3 api to use new model
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Implement multipart uploads
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let final_object = Object::new(bucket.clone(), key.clone(), vec![object_version]);
garage.object_table.insert(&final_object).await?;
let mut xml = String::new();
writeln!(&mut xml, r#"<?xml version="1.0" encoding="UTF-8"?>"#).unwrap();
writeln!(
&mut xml,
r#"<CompleteMultipartUploadResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">"#
)
.unwrap();
Work on API
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writeln!(
&mut xml,
"\t<Location>{}</Location>",
garage.config.s3_api.s3_region
)
.unwrap();
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writeln!(&mut xml, "\t<Bucket>{}</Bucket>", bucket).unwrap();
writeln!(&mut xml, "\t<Key>{}</Key>", xml_escape(&key)).unwrap();
writeln!(&mut xml, "</CompleteMultipartUploadResult>").unwrap();
Update to Hyper 0.13.6 that accepts non-Sync streams in wrap_stream. Simplifies code and makes it possible to publish on crates.io
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Ok(Response::new(Body::from(xml.into_bytes())))
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}
Abort multipart upload
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pub async fn handle_abort_multipart_upload(
garage: Arc<Garage>,
bucket: &str,
key: &str,
upload_id: &str,
Update to Hyper 0.13.6 that accepts non-Sync streams in wrap_stream. Simplifies code and makes it possible to publish on crates.io
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) -> Result<Response<Body>, Error> {
Work on API
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let version_uuid =
uuid_from_str(upload_id).map_err(|_| Error::BadRequest(format!("Invalid upload ID")))?;
Abort multipart upload
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Work on API
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let object = garage
.object_table
.get(&bucket.to_string(), &key.to_string())
.await?;
Abort multipart upload
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let object = match object {
None => return Err(Error::BadRequest(format!("Object not found"))),
Some(x) => x,
};
cargo fmt
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let object_version = object
.versions()
.iter()
.find(|v| v.uuid == version_uuid && v.is_uploading());
Abort multipart upload
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let mut object_version = match object_version {
Work on API
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None => {
return Err(Error::BadRequest(format!(
"Multipart upload does not exist or has already been completed"
)))
}
Abort multipart upload
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Some(x) => x.clone(),
};
object_version.state = ObjectVersionState::Aborted;
let final_object = Object::new(bucket.to_string(), key.to_string(), vec![object_version]);
garage.object_table.insert(&final_object).await?;
Update to Hyper 0.13.6 that accepts non-Sync streams in wrap_stream. Simplifies code and makes it possible to publish on crates.io
2020-07-07 15:15:53 +00:00
Ok(Response::new(Body::from(vec![])))
Abort multipart upload
2020-04-26 20:46:21 +00:00
}
Implement multipart uploads
2020-04-26 20:39:32 +00:00
fn get_mime_type(req: &Request<Body>) -> Result<String, Error> {
Ok(req
.headers()
.get(hyper::header::CONTENT_TYPE)
.map(|x| x.to_str())
.unwrap_or(Ok("blob"))?
.to_string())
}
More headers taken into account
2020-07-09 15:04:43 +00:00
fn get_headers(req: &Request<Body>) -> Result<ObjectVersionHeaders, Error> {
let content_type = get_mime_type(req)?;
let other_headers = vec![
hyper::header::CACHE_CONTROL,
hyper::header::CONTENT_DISPOSITION,
hyper::header::CONTENT_ENCODING,
hyper::header::CONTENT_LANGUAGE,
hyper::header::EXPIRES,
];
let mut other = BTreeMap::new();
for h in other_headers.iter() {
if let Some(v) = req.headers().get(h) {
if let Ok(v_str) = v.to_str() {
other.insert(h.to_string(), v_str.to_string());
}
}
}
Ok(ObjectVersionHeaders {
content_type,
other: BTreeMap::new(),
})
}
Implement multipart uploads
2020-04-26 20:39:32 +00:00
fn uuid_from_str(id: &str) -> Result<UUID, ()> {
let id_bin = hex::decode(id).map_err(|_| ())?;
if id_bin.len() != 32 {
return Err(());
}
let mut uuid = [0u8; 32];
uuid.copy_from_slice(&id_bin[..]);
Ok(UUID::from(uuid))
}
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