forked from Deuxfleurs/garage
Multipart improvements
- support part_number for HeadObject - add checks in complete_multipart_upload
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parent
513a6b15f9
commit
6dab836f3a
5 changed files with 129 additions and 34 deletions
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@ -157,8 +157,12 @@ async fn handler_inner(garage: Arc<Garage>, req: Request<Body>) -> Result<Respon
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let resp = match endpoint {
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Endpoint::Options => handle_options(&req, &bucket).await,
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Endpoint::HeadObject { key, .. } => handle_head(garage, &req, bucket_id, &key).await,
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Endpoint::GetObject { key, .. } => handle_get(garage, &req, bucket_id, &key).await,
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Endpoint::HeadObject {
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key, part_number, ..
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} => handle_head(garage, &req, bucket_id, &key, part_number).await,
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Endpoint::GetObject {
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key, part_number, ..
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} => handle_get(garage, &req, bucket_id, &key, part_number).await,
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Endpoint::UploadPart {
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key,
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part_number,
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@ -58,6 +58,19 @@ pub enum Error {
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#[error(display = "At least one of the preconditions you specified did not hold")]
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PreconditionFailed,
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/// Parts specified in CMU request do not match parts actually uploaded
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#[error(display = "Parts given to CompleteMultipartUpload do not match uploaded parts")]
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InvalidPart,
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/// Parts given to CompleteMultipartUpload were not in ascending order
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#[error(display = "Parts given to CompleteMultipartUpload were not in ascending order")]
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InvalidPartOrder,
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/// In CompleteMultipartUpload: not enough data
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/// (here we are more lenient than AWS S3)
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#[error(display = "Proposed upload is smaller than the minimum allowed object size")]
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EntityTooSmall,
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// Category: bad request
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/// The request contained an invalid UTF-8 sequence in its path or in other parameters
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#[error(display = "Invalid UTF-8: {}", _0)]
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@ -143,6 +156,9 @@ impl Error {
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Error::BucketAlreadyExists => "BucketAlreadyExists",
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Error::BucketNotEmpty => "BucketNotEmpty",
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Error::PreconditionFailed => "PreconditionFailed",
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Error::InvalidPart => "InvalidPart",
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Error::InvalidPartOrder => "InvalidPartOrder",
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Error::EntityTooSmall => "EntityTooSmall",
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Error::Forbidden(_) => "AccessDenied",
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Error::AuthorizationHeaderMalformed(_) => "AuthorizationHeaderMalformed",
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Error::NotImplemented(_) => "NotImplemented",
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@ -3,6 +3,10 @@ use std::sync::Arc;
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use std::time::{Duration, UNIX_EPOCH};
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use futures::stream::*;
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use http::header::{
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ACCEPT_RANGES, CONTENT_LENGTH, CONTENT_RANGE, CONTENT_TYPE, ETAG, IF_MODIFIED_SINCE,
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IF_NONE_MATCH, LAST_MODIFIED,
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};
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use hyper::body::Bytes;
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use hyper::{Body, Request, Response, StatusCode};
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@ -24,15 +28,12 @@ fn object_headers(
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let date_str = httpdate::fmt_http_date(date);
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let mut resp = Response::builder()
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.header(
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"Content-Type",
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version_meta.headers.content_type.to_string(),
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)
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.header("Last-Modified", date_str)
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.header("Accept-Ranges", "bytes".to_string());
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.header(CONTENT_TYPE, version_meta.headers.content_type.to_string())
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.header(LAST_MODIFIED, date_str)
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.header(ACCEPT_RANGES, "bytes".to_string());
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if !version_meta.etag.is_empty() {
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resp = resp.header("ETag", format!("\"{}\"", version_meta.etag));
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resp = resp.header(ETAG, format!("\"{}\"", version_meta.etag));
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}
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for (k, v) in version_meta.headers.other.iter() {
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@ -52,7 +53,7 @@ fn try_answer_cached(
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// precedence and If-Modified-Since is ignored (as per 6.Precedence from rfc7232). The rational
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// being that etag based matching is more accurate, it has no issue with sub-second precision
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// for instance (in case of very fast updates)
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let cached = if let Some(none_match) = req.headers().get(http::header::IF_NONE_MATCH) {
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let cached = if let Some(none_match) = req.headers().get(IF_NONE_MATCH) {
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let none_match = none_match.to_str().ok()?;
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let expected = format!("\"{}\"", version_meta.etag);
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let found = none_match
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@ -60,7 +61,7 @@ fn try_answer_cached(
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.map(str::trim)
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.any(|etag| etag == expected || etag == "\"*\"");
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found
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} else if let Some(modified_since) = req.headers().get(http::header::IF_MODIFIED_SINCE) {
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} else if let Some(modified_since) = req.headers().get(IF_MODIFIED_SINCE) {
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let modified_since = modified_since.to_str().ok()?;
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let client_date = httpdate::parse_http_date(modified_since).ok()?;
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let server_date = UNIX_EPOCH + Duration::from_millis(version.timestamp);
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@ -87,6 +88,7 @@ pub async fn handle_head(
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req: &Request<Body>,
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bucket_id: Uuid,
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key: &str,
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part_number: Option<u64>,
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) -> Result<Response<Body>, Error> {
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let object = garage
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.object_table
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@ -94,30 +96,68 @@ pub async fn handle_head(
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.await?
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.ok_or(Error::NoSuchKey)?;
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let version = object
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let object_version = object
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.versions()
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.iter()
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.rev()
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.find(|v| v.is_data())
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.ok_or(Error::NoSuchKey)?;
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let version_meta = match &version.state {
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ObjectVersionState::Complete(ObjectVersionData::Inline(meta, _)) => meta,
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ObjectVersionState::Complete(ObjectVersionData::FirstBlock(meta, _)) => meta,
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let version_data = match &object_version.state {
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ObjectVersionState::Complete(c) => c,
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_ => unreachable!(),
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};
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if let Some(cached) = try_answer_cached(version, version_meta, req) {
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let version_meta = match version_data {
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ObjectVersionData::Inline(meta, _) => meta,
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ObjectVersionData::FirstBlock(meta, _) => meta,
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_ => unreachable!(),
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};
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if let Some(cached) = try_answer_cached(object_version, version_meta, req) {
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return Ok(cached);
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}
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let body: Body = Body::empty();
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let response = object_headers(version, version_meta)
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.header("Content-Length", format!("{}", version_meta.size))
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.status(StatusCode::OK)
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.body(body)
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.unwrap();
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Ok(response)
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if let Some(pn) = part_number {
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if let ObjectVersionData::Inline(_, _) = version_data {
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// Not a multipart upload
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return Err(Error::BadRequest(
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"Cannot process part_number argument: not a multipart upload".into(),
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));
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}
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let version = garage
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.version_table
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.get(&object_version.uuid, &EmptyKey)
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.await?
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.ok_or(Error::NoSuchKey)?;
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if !version.has_part_number(pn) {
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return Err(Error::BadRequest(format!(
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"Part number {} does not exist",
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pn
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)));
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}
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let part_size: u64 = version
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.blocks
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.items()
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.iter()
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.filter(|(k, _)| k.part_number == pn)
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.map(|(_, b)| b.size)
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.sum();
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let n_parts = version.parts_etags.items().len();
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Ok(object_headers(object_version, version_meta)
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.header(CONTENT_LENGTH, format!("{}", part_size))
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.header("x-amz-mp-parts-count", format!("{}", n_parts))
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.status(StatusCode::OK)
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.body(Body::empty())?)
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} else {
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Ok(object_headers(object_version, version_meta)
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.header(CONTENT_LENGTH, format!("{}", version_meta.size))
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.status(StatusCode::OK)
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.body(Body::empty())?)
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}
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}
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/// Handle GET request
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@ -126,7 +166,14 @@ pub async fn handle_get(
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req: &Request<Body>,
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bucket_id: Uuid,
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key: &str,
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part_number: Option<u64>,
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) -> Result<Response<Body>, Error> {
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if part_number.is_some() {
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return Err(Error::NotImplemented(
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"part_number not supported for GetObject".into(),
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));
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}
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let object = garage
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.object_table
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.get(&bucket_id, &key.to_string())
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@ -182,7 +229,7 @@ pub async fn handle_get(
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}
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let resp_builder = object_headers(last_v, last_v_meta)
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.header("Content-Length", format!("{}", last_v_meta.size))
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.header(CONTENT_LENGTH, format!("{}", last_v_meta.size))
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.status(StatusCode::OK);
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match &last_v_data {
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@ -238,9 +285,9 @@ async fn handle_get_range(
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end: u64,
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) -> Result<Response<Body>, Error> {
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let resp_builder = object_headers(version, version_meta)
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.header("Content-Length", format!("{}", end - begin))
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.header(CONTENT_LENGTH, format!("{}", end - begin))
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.header(
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"Content-Range",
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CONTENT_RANGE,
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format!("bytes {}-{}/{}", begin, end - 1, version_meta.size),
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)
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.status(StatusCode::PARTIAL_CONTENT);
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@ -1,4 +1,4 @@
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use std::collections::{BTreeMap, VecDeque};
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use std::collections::{BTreeMap, BTreeSet, VecDeque};
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use std::sync::Arc;
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use chrono::{DateTime, NaiveDateTime, Utc};
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@ -520,6 +520,7 @@ pub async fn handle_complete_multipart_upload(
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let version_uuid = decode_upload_id(upload_id)?;
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// Get object and version
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let key = key.to_string();
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let (object, version) = futures::try_join!(
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garage.object_table.get(&bucket_id, &key),
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@ -544,6 +545,20 @@ pub async fn handle_complete_multipart_upload(
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_ => unreachable!(),
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};
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// Check that part numbers are an increasing sequence.
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// (it doesn't need to start at 1 nor to be a continuous sequence,
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// see discussion in #192)
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if body_list_of_parts.is_empty() {
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return Err(Error::EntityTooSmall);
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}
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if !body_list_of_parts
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.iter()
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.zip(body_list_of_parts.iter().skip(1))
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.all(|(p1, p2)| p1.part_number < p2.part_number)
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{
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return Err(Error::InvalidPartOrder);
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}
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// Check that the list of parts they gave us corresponds to the parts we have here
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debug!("Expected parts from request: {:?}", body_list_of_parts);
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debug!("Parts stored in version: {:?}", version.parts_etags.items());
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@ -556,18 +571,31 @@ pub async fn handle_complete_multipart_upload(
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.iter()
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.map(|x| (&x.part_number, &x.etag))
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.eq(parts);
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if !same_parts {
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return Err(Error::InvalidPart);
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}
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// Check that all blocks belong to one of the parts
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let block_parts = version
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.blocks
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.items()
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.iter()
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.map(|(bk, _)| bk.part_number)
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.collect::<BTreeSet<_>>();
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let same_parts = body_list_of_parts
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.iter()
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.map(|x| x.part_number)
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.eq(block_parts.into_iter());
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if !same_parts {
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return Err(Error::BadRequest(
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"We don't have the same parts".to_string(),
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"Part numbers in block list and part list do not match. This can happen if a part was partially uploaded. Please abort the multipart upload and try again.".into(),
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));
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}
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// Calculate etag of final object
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// To understand how etags are calculated, read more here:
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// https://teppen.io/2018/06/23/aws_s3_etags/
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let num_parts = version.blocks.items().last().unwrap().0.part_number
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- version.blocks.items().first().unwrap().0.part_number
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+ 1;
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let num_parts = body_list_of_parts.len();
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let mut etag_md5_hasher = Md5::new();
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for (_, etag) in version.parts_etags.items().iter() {
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etag_md5_hasher.update(etag.as_bytes());
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@ -134,8 +134,8 @@ async fn serve_file(garage: Arc<Garage>, req: &Request<Body>) -> Result<Response
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let ret_doc = match *req.method() {
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Method::OPTIONS => handle_options(req, &bucket).await,
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Method::HEAD => handle_head(garage.clone(), req, bucket_id, &key).await,
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Method::GET => handle_get(garage.clone(), req, bucket_id, &key).await,
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Method::HEAD => handle_head(garage.clone(), req, bucket_id, &key, None).await,
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Method::GET => handle_get(garage.clone(), req, bucket_id, &key, None).await,
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_ => Err(ApiError::BadRequest("HTTP method not supported".into())),
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}
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.map_err(Error::from);
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@ -166,7 +166,7 @@ async fn serve_file(garage: Arc<Garage>, req: &Request<Body>) -> Result<Response
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.body(Body::empty())
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.unwrap();
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match handle_get(garage, &req2, bucket_id, &error_document).await {
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match handle_get(garage, &req2, bucket_id, &error_document, None).await {
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Ok(mut error_doc) => {
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// The error won't be logged back in handle_request,
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// so log it here
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