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[s3-checksum] implement x-amz-checksum-* headers

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This commit is contained in:
Alex Auvolat 2024-03-21 14:06:59 +01:00
parent 7e0107c47d
commit 74949c69cb
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GPG key ID: 0E496D15096376BE
22 changed files with 1227 additions and 340 deletions
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8
Cargo.lock generated
View file

@ -905,9 +905,9 @@ dependencies = [
[[package]]
name = "crc32fast"
version = "1.3.2"
version = "1.4.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b540bd8bc810d3885c6ea91e2018302f68baba2129ab3e88f32389ee9370880d"
checksum = "b3855a8a784b474f333699ef2bbca9db2c4a1f6d9088a90a2d25b1eb53111eaa"
dependencies = [
"cfg-if",
]
@ -1346,6 +1346,7 @@ dependencies = [
"serde",
"serde_bytes",
"serde_json",
"sha1",
"sha2",
"static_init",
"structopt",
@ -1367,6 +1368,8 @@ dependencies = [
"base64 0.21.7",
"bytes",
"chrono",
"crc32c",
"crc32fast",
"crypto-common",
"err-derive",
"form_urlencoded",
@ -1400,6 +1403,7 @@ dependencies = [
"serde",
"serde_bytes",
"serde_json",
"sha1",
"sha2",
"tokio",
"tokio-stream",

16
Cargo.nix
View file

@ -34,7 +34,7 @@ args@{
ignoreLockHash,
}:
let
nixifiedLockHash = "f73523af24b5164222da0a1c326ba65fa4a01b55751dd9ddab251334cfe20d13";
nixifiedLockHash = "a49da9d5ef560672a34c1e004c0122e706a74fac512300f20858f136cd00582e";
workspaceSrc = if args.workspaceSrc == null then ./. else args.workspaceSrc;
currentLockHash = builtins.hashFile "sha256" (workspaceSrc + /Cargo.lock);
lockHashIgnored = if ignoreLockHash
@ -674,7 +674,7 @@ in
aws_smithy_types = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".aws-smithy-types."1.1.4" { inherit profileName; }).out;
bytes = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".bytes."1.5.0" { inherit profileName; }).out;
crc32c = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".crc32c."0.6.4" { inherit profileName; }).out;
crc32fast = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".crc32fast."1.3.2" { inherit profileName; }).out;
crc32fast = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".crc32fast."1.4.0" { inherit profileName; }).out;
hex = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".hex."0.4.3" { inherit profileName; }).out;
http = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".http."0.2.11" { inherit profileName; }).out;
http_body = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".http-body."0.4.6" { inherit profileName; }).out;
@ -694,7 +694,7 @@ in
dependencies = {
aws_smithy_types = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".aws-smithy-types."1.1.4" { inherit profileName; }).out;
bytes = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".bytes."1.5.0" { inherit profileName; }).out;
crc32fast = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".crc32fast."1.3.2" { inherit profileName; }).out;
crc32fast = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".crc32fast."1.4.0" { inherit profileName; }).out;
};
});
@ -1287,11 +1287,11 @@ in
};
});
"registry+https://github.com/rust-lang/crates.io-index".crc32fast."1.3.2" = overridableMkRustCrate (profileName: rec {
"registry+https://github.com/rust-lang/crates.io-index".crc32fast."1.4.0" = overridableMkRustCrate (profileName: rec {
name = "crc32fast";
version = "1.3.2";
version = "1.4.0";
registry = "registry+https://github.com/rust-lang/crates.io-index";
src = fetchCratesIo { inherit name version; sha256 = "b540bd8bc810d3885c6ea91e2018302f68baba2129ab3e88f32389ee9370880d"; };
src = fetchCratesIo { inherit name version; sha256 = "b3855a8a784b474f333699ef2bbca9db2c4a1f6d9088a90a2d25b1eb53111eaa"; };
features = builtins.concatLists [
[ "default" ]
[ "std" ]
@ -1958,6 +1958,7 @@ in
rand = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".rand."0.8.5" { inherit profileName; }).out;
serde = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".serde."1.0.196" { inherit profileName; }).out;
serde_bytes = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".serde_bytes."0.11.14" { inherit profileName; }).out;
sha1 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".sha1."0.10.6" { inherit profileName; }).out;
structopt = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".structopt."0.3.26" { inherit profileName; }).out;
timeago = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".timeago."0.4.2" { inherit profileName; }).out;
tokio = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".tokio."1.36.0" { inherit profileName; }).out;
@ -2003,6 +2004,8 @@ in
base64 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".base64."0.21.7" { inherit profileName; }).out;
bytes = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".bytes."1.5.0" { inherit profileName; }).out;
chrono = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".chrono."0.4.33" { inherit profileName; }).out;
crc32c = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".crc32c."0.6.4" { inherit profileName; }).out;
crc32fast = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".crc32fast."1.4.0" { inherit profileName; }).out;
crypto_common = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".crypto-common."0.1.6" { inherit profileName; }).out;
err_derive = (buildRustPackages."registry+https://github.com/rust-lang/crates.io-index".err-derive."0.3.1" { profileName = "__noProfile"; }).out;
form_urlencoded = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".form_urlencoded."1.2.1" { inherit profileName; }).out;
@ -2036,6 +2039,7 @@ in
serde = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".serde."1.0.196" { inherit profileName; }).out;
serde_bytes = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".serde_bytes."0.11.14" { inherit profileName; }).out;
serde_json = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".serde_json."1.0.113" { inherit profileName; }).out;
sha1 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".sha1."0.10.6" { inherit profileName; }).out;
sha2 = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".sha2."0.10.8" { inherit profileName; }).out;
tokio = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".tokio."1.36.0" { inherit profileName; }).out;
tokio_stream = (rustPackages."registry+https://github.com/rust-lang/crates.io-index".tokio-stream."0.1.14" { inherit profileName; }).out;

3
Cargo.toml
View file

@ -43,6 +43,8 @@ bytes = "1.0"
bytesize = "1.1"
cfg-if = "1.0"
chrono = "0.4"
crc32fast = "1.4"
crc32c = "0.6"
crypto-common = "0.1"
digest = "0.10"
err-derive = "0.3"
@ -62,6 +64,7 @@ parse_duration = "2.1"
pin-project = "1.0.12"
pnet_datalink = "0.34"
rand = "0.8"
sha1 = "0.10"
sha2 = "0.10"
timeago = { version = "0.4", default-features = false }
xxhash-rust = { version = "0.8", default-features = false, features = ["xxh3"] }

3
src/api/Cargo.toml
View file

@ -28,6 +28,8 @@ async-trait.workspace = true
base64.workspace = true
bytes.workspace = true
chrono.workspace = true
crc32fast.workspace = true
crc32c.workspace = true
crypto-common.workspace = true
err-derive.workspace = true
hex.workspace = true
@ -37,6 +39,7 @@ tracing.workspace = true
md-5.workspace = true
nom.workspace = true
pin-project.workspace = true
sha1.workspace = true
sha2.workspace = true
futures.workspace = true

2
src/api/s3/api_server.rs
View file

@ -325,7 +325,7 @@ impl ApiHandler for S3ApiServer {
part_number_marker: part_number_marker.map(|p| p.min(10000)),
max_parts: max_parts.unwrap_or(1000).clamp(1, 1000),
};
handle_list_parts(ctx, &query).await
handle_list_parts(ctx, req, &query).await
}
Endpoint::DeleteObjects {} => handle_delete_objects(ctx, req, content_sha256).await,
Endpoint::GetBucketWebsite {} => handle_get_website(ctx).await,

406
src/api/s3/checksum.rs Normal file
View file

@ -0,0 +1,406 @@
use std::convert::{TryFrom, TryInto};
use std::hash::Hasher;
use base64::prelude::*;
use crc32c::Crc32cHasher as Crc32c;
use crc32fast::Hasher as Crc32;
use md5::{Digest, Md5};
use sha1::Sha1;
use sha2::Sha256;
use http::{HeaderMap, HeaderName, HeaderValue};
use garage_util::data::*;
use garage_util::error::OkOrMessage;
use garage_model::s3::object_table::*;
use crate::s3::error::*;
pub const X_AMZ_CHECKSUM_ALGORITHM: HeaderName =
HeaderName::from_static("x-amz-checksum-algorithm");
pub const X_AMZ_CHECKSUM_MODE: HeaderName = HeaderName::from_static("x-amz-checksum-mode");
pub const X_AMZ_CHECKSUM_CRC32: HeaderName = HeaderName::from_static("x-amz-checksum-crc32");
pub const X_AMZ_CHECKSUM_CRC32C: HeaderName = HeaderName::from_static("x-amz-checksum-crc32c");
pub const X_AMZ_CHECKSUM_SHA1: HeaderName = HeaderName::from_static("x-amz-checksum-sha1");
pub const X_AMZ_CHECKSUM_SHA256: HeaderName = HeaderName::from_static("x-amz-checksum-sha256");
pub type Crc32Checksum = [u8; 4];
pub type Crc32cChecksum = [u8; 4];
pub type Md5Checksum = [u8; 16];
pub type Sha1Checksum = [u8; 20];
pub type Sha256Checksum = [u8; 32];
#[derive(Debug, Default)]
pub(crate) struct ExpectedChecksums {
// base64-encoded md5 (content-md5 header)
pub md5: Option<String>,
// content_sha256 (as a Hash / FixedBytes32)
pub sha256: Option<Hash>,
// extra x-amz-checksum-* header
pub extra: Option<ChecksumValue>,
}
pub(crate) struct Checksummer {
pub crc32: Option<Crc32>,
pub crc32c: Option<Crc32c>,
pub md5: Option<Md5>,
pub sha1: Option<Sha1>,
pub sha256: Option<Sha256>,
}
#[derive(Default)]
pub(crate) struct Checksums {
pub crc32: Option<Crc32Checksum>,
pub crc32c: Option<Crc32cChecksum>,
pub md5: Option<Md5Checksum>,
pub sha1: Option<Sha1Checksum>,
pub sha256: Option<Sha256Checksum>,
}
impl Checksummer {
pub(crate) fn init(expected: &ExpectedChecksums, require_md5: bool) -> Self {
let mut ret = Self {
crc32: None,
crc32c: None,
md5: None,
sha1: None,
sha256: None,
};
if expected.md5.is_some() || require_md5 {
ret.md5 = Some(Md5::new());
}
if expected.sha256.is_some() || matches!(&expected.extra, Some(ChecksumValue::Sha256(_))) {
ret.sha256 = Some(Sha256::new());
}
if matches!(&expected.extra, Some(ChecksumValue::Crc32(_))) {
ret.crc32 = Some(Crc32::new());
}
if matches!(&expected.extra, Some(ChecksumValue::Crc32c(_))) {
ret.crc32c = Some(Crc32c::default());
}
if matches!(&expected.extra, Some(ChecksumValue::Sha1(_))) {
ret.sha1 = Some(Sha1::new());
}
ret
}
pub(crate) fn add(mut self, algo: Option<ChecksumAlgorithm>) -> Self {
match algo {
Some(ChecksumAlgorithm::Crc32) => {
self.crc32 = Some(Crc32::new());
}
Some(ChecksumAlgorithm::Crc32c) => {
self.crc32c = Some(Crc32c::default());
}
Some(ChecksumAlgorithm::Sha1) => {
self.sha1 = Some(Sha1::new());
}
Some(ChecksumAlgorithm::Sha256) => {
self.sha256 = Some(Sha256::new());
}
None => (),
}
self
}
pub(crate) fn update(&mut self, bytes: &[u8]) {
if let Some(crc32) = &mut self.crc32 {
crc32.update(bytes);
}
if let Some(crc32c) = &mut self.crc32c {
crc32c.write(bytes);
}
if let Some(md5) = &mut self.md5 {
md5.update(bytes);
}
if let Some(sha1) = &mut self.sha1 {
sha1.update(bytes);
}
if let Some(sha256) = &mut self.sha256 {
sha256.update(bytes);
}
}
pub(crate) fn finalize(self) -> Checksums {
Checksums {
crc32: self.crc32.map(|x| u32::to_be_bytes(x.finalize())),
crc32c: self
.crc32c
.map(|x| u32::to_be_bytes(u32::try_from(x.finish()).unwrap())),
md5: self.md5.map(|x| x.finalize()[..].try_into().unwrap()),
sha1: self.sha1.map(|x| x.finalize()[..].try_into().unwrap()),
sha256: self.sha256.map(|x| x.finalize()[..].try_into().unwrap()),
}
}
}
impl Checksums {
pub fn verify(&self, expected: &ExpectedChecksums) -> Result<(), Error> {
if let Some(expected_md5) = &expected.md5 {
match self.md5 {
Some(md5) if BASE64_STANDARD.encode(&md5) == expected_md5.trim_matches('"') => (),
_ => {
return Err(Error::InvalidDigest(
"MD5 checksum verification failed (from content-md5)".into(),
))
}
}
}
if let Some(expected_sha256) = &expected.sha256 {
match self.sha256 {
Some(sha256) if &sha256[..] == expected_sha256.as_slice() => (),
_ => {
return Err(Error::InvalidDigest(
"SHA256 checksum verification failed (from x-amz-content-sha256)".into(),
))
}
}
}
if let Some(extra) = expected.extra {
let algo = extra.algorithm();
if self.extract(Some(algo)) != Some(extra) {
return Err(Error::InvalidDigest(format!(
"Failed to validate checksum for algorithm {:?}",
algo
)));
}
}
Ok(())
}
pub fn extract(&self, algo: Option<ChecksumAlgorithm>) -> Option<ChecksumValue> {
match algo {
None => None,
Some(ChecksumAlgorithm::Crc32) => Some(ChecksumValue::Crc32(self.crc32.unwrap())),
Some(ChecksumAlgorithm::Crc32c) => Some(ChecksumValue::Crc32c(self.crc32c.unwrap())),
Some(ChecksumAlgorithm::Sha1) => Some(ChecksumValue::Sha1(self.sha1.unwrap())),
Some(ChecksumAlgorithm::Sha256) => Some(ChecksumValue::Sha256(self.sha256.unwrap())),
}
}
}
// ----
#[derive(Default)]
pub(crate) struct MultipartChecksummer {
pub md5: Md5,
pub extra: Option<MultipartExtraChecksummer>,
}
pub(crate) enum MultipartExtraChecksummer {
Crc32(Crc32),
Crc32c(Crc32c),
Sha1(Sha1),
Sha256(Sha256),
}
impl MultipartChecksummer {
pub(crate) fn init(algo: Option<ChecksumAlgorithm>) -> Self {
Self {
md5: Md5::new(),
extra: match algo {
None => None,
Some(ChecksumAlgorithm::Crc32) => {
Some(MultipartExtraChecksummer::Crc32(Crc32::new()))
}
Some(ChecksumAlgorithm::Crc32c) => {
Some(MultipartExtraChecksummer::Crc32c(Crc32c::default()))
}
Some(ChecksumAlgorithm::Sha1) => Some(MultipartExtraChecksummer::Sha1(Sha1::new())),
Some(ChecksumAlgorithm::Sha256) => {
Some(MultipartExtraChecksummer::Sha256(Sha256::new()))
}
},
}
}
pub(crate) fn update(
&mut self,
etag: &str,
checksum: Option<ChecksumValue>,
) -> Result<(), Error> {
self.md5
.update(&hex::decode(&etag).ok_or_message("invalid etag hex")?);
match (&mut self.extra, checksum) {
(None, _) => (),
(
Some(MultipartExtraChecksummer::Crc32(ref mut crc32)),
Some(ChecksumValue::Crc32(x)),
) => {
crc32.update(&x);
}
(
Some(MultipartExtraChecksummer::Crc32c(ref mut crc32c)),
Some(ChecksumValue::Crc32c(x)),
) => {
crc32c.write(&x);
}
(Some(MultipartExtraChecksummer::Sha1(ref mut sha1)), Some(ChecksumValue::Sha1(x))) => {
sha1.update(&x);
}
(
Some(MultipartExtraChecksummer::Sha256(ref mut sha256)),
Some(ChecksumValue::Sha256(x)),
) => {
sha256.update(&x);
}
(Some(_), b) => {
return Err(Error::internal_error(format!(
"part checksum was not computed correctly, got: {:?}",
b
)))
}
}
Ok(())
}
pub(crate) fn finalize(self) -> (Md5Checksum, Option<ChecksumValue>) {
let md5 = self.md5.finalize()[..].try_into().unwrap();
let extra = match self.extra {
None => None,
Some(MultipartExtraChecksummer::Crc32(crc32)) => {
Some(ChecksumValue::Crc32(u32::to_be_bytes(crc32.finalize())))
}
Some(MultipartExtraChecksummer::Crc32c(crc32c)) => Some(ChecksumValue::Crc32c(
u32::to_be_bytes(u32::try_from(crc32c.finish()).unwrap()),
)),
Some(MultipartExtraChecksummer::Sha1(sha1)) => {
Some(ChecksumValue::Sha1(sha1.finalize()[..].try_into().unwrap()))
}
Some(MultipartExtraChecksummer::Sha256(sha256)) => Some(ChecksumValue::Sha256(
sha256.finalize()[..].try_into().unwrap(),
)),
};
(md5, extra)
}
}
// ----
/// Extract the value of the x-amz-checksum-algorithm header
pub(crate) fn request_checksum_algorithm(
headers: &HeaderMap<HeaderValue>,
) -> Result<Option<ChecksumAlgorithm>, Error> {
match headers.get(X_AMZ_CHECKSUM_ALGORITHM) {
None => Ok(None),
Some(x) if x == "CRC32" => Ok(Some(ChecksumAlgorithm::Crc32)),
Some(x) if x == "CRC32C" => Ok(Some(ChecksumAlgorithm::Crc32c)),
Some(x) if x == "SHA1" => Ok(Some(ChecksumAlgorithm::Sha1)),
Some(x) if x == "SHA256" => Ok(Some(ChecksumAlgorithm::Sha256)),
_ => Err(Error::bad_request("invalid checksum algorithm")),
}
}
/// Extract the value of any of the x-amz-checksum-* headers
pub(crate) fn request_checksum_value(
headers: &HeaderMap<HeaderValue>,
) -> Result<Option<ChecksumValue>, Error> {
let mut ret = vec![];
if let Some(crc32_str) = headers.get(X_AMZ_CHECKSUM_CRC32) {
let crc32 = BASE64_STANDARD
.decode(&crc32_str)
.ok()
.and_then(|x| x.try_into().ok())
.ok_or_bad_request("invalid x-amz-checksum-crc32 header")?;
ret.push(ChecksumValue::Crc32(crc32))
}
if let Some(crc32c_str) = headers.get(X_AMZ_CHECKSUM_CRC32C) {
let crc32c = BASE64_STANDARD
.decode(&crc32c_str)
.ok()
.and_then(|x| x.try_into().ok())
.ok_or_bad_request("invalid x-amz-checksum-crc32c header")?;
ret.push(ChecksumValue::Crc32c(crc32c))
}
if let Some(sha1_str) = headers.get(X_AMZ_CHECKSUM_SHA1) {
let sha1 = BASE64_STANDARD
.decode(&sha1_str)
.ok()
.and_then(|x| x.try_into().ok())
.ok_or_bad_request("invalid x-amz-checksum-sha1 header")?;
ret.push(ChecksumValue::Sha1(sha1))
}
if let Some(sha256_str) = headers.get(X_AMZ_CHECKSUM_SHA256) {
let sha256 = BASE64_STANDARD
.decode(&sha256_str)
.ok()
.and_then(|x| x.try_into().ok())
.ok_or_bad_request("invalid x-amz-checksum-sha256 header")?;
ret.push(ChecksumValue::Sha256(sha256))
}
if ret.len() > 1 {
return Err(Error::bad_request(
"multiple x-amz-checksum-* headers given",
));
}
Ok(ret.pop())
}
/// Checks for the presense of x-amz-checksum-algorithm
/// if so extract the corrseponding x-amz-checksum-* value
pub(crate) fn request_checksum_algorithm_value(
headers: &HeaderMap<HeaderValue>,
) -> Result<Option<ChecksumValue>, Error> {
match headers.get(X_AMZ_CHECKSUM_ALGORITHM) {
Some(x) if x == "CRC32" => {
let crc32 = headers
.get(X_AMZ_CHECKSUM_CRC32)
.and_then(|x| BASE64_STANDARD.decode(&x).ok())
.and_then(|x| x.try_into().ok())
.ok_or_bad_request("invalid x-amz-checksum-crc32 header")?;
Ok(Some(ChecksumValue::Crc32(crc32)))
}
Some(x) if x == "CRC32C" => {
let crc32c = headers
.get(X_AMZ_CHECKSUM_CRC32C)
.and_then(|x| BASE64_STANDARD.decode(&x).ok())
.and_then(|x| x.try_into().ok())
.ok_or_bad_request("invalid x-amz-checksum-crc32c header")?;
Ok(Some(ChecksumValue::Crc32c(crc32c)))
}
Some(x) if x == "SHA1" => {
let sha1 = headers
.get(X_AMZ_CHECKSUM_SHA1)
.and_then(|x| BASE64_STANDARD.decode(&x).ok())
.and_then(|x| x.try_into().ok())
.ok_or_bad_request("invalid x-amz-checksum-sha1 header")?;
Ok(Some(ChecksumValue::Sha1(sha1)))
}
Some(x) if x == "SHA256" => {
let sha256 = headers
.get(X_AMZ_CHECKSUM_SHA256)
.and_then(|x| BASE64_STANDARD.decode(&x).ok())
.and_then(|x| x.try_into().ok())
.ok_or_bad_request("invalid x-amz-checksum-sha256 header")?;
Ok(Some(ChecksumValue::Sha256(sha256)))
}
Some(_) => Err(Error::bad_request("invalid x-amz-checksum-algorithm")),
None => Ok(None),
}
}
pub(crate) fn add_checksum_response_headers(
checksum: &Option<ChecksumValue>,
mut resp: http::response::Builder,
) -> http::response::Builder {
match checksum {
Some(ChecksumValue::Crc32(crc32)) => {
resp = resp.header(X_AMZ_CHECKSUM_CRC32, BASE64_STANDARD.encode(&crc32));
}
Some(ChecksumValue::Crc32c(crc32c)) => {
resp = resp.header(X_AMZ_CHECKSUM_CRC32C, BASE64_STANDARD.encode(&crc32c));
}
Some(ChecksumValue::Sha1(sha1)) => {
resp = resp.header(X_AMZ_CHECKSUM_SHA1, BASE64_STANDARD.encode(&sha1));
}
Some(ChecksumValue::Sha256(sha256)) => {
resp = resp.header(X_AMZ_CHECKSUM_SHA256, BASE64_STANDARD.encode(&sha256));
}
None => (),
}
resp
}

120
src/api/s3/copy.rs
View file

@ -2,7 +2,6 @@ use std::pin::Pin;
use std::time::{Duration, SystemTime, UNIX_EPOCH};
use futures::{stream, stream::Stream, StreamExt, TryStreamExt};
use md5::{Digest as Md5Digest, Md5};
use bytes::Bytes;
use hyper::{Request, Response};
@ -23,11 +22,12 @@ use garage_model::s3::version_table::*;
use crate::helpers::*;
use crate::s3::api_server::{ReqBody, ResBody};
use crate::s3::checksum::*;
use crate::s3::encryption::EncryptionParams;
use crate::s3::error::*;
use crate::s3::get::full_object_byte_stream;
use crate::s3::multipart;
use crate::s3::put::{get_headers, save_stream, SaveStreamResult};
use crate::s3::put::{get_headers, save_stream, ChecksumMode, SaveStreamResult};
use crate::s3::xml::{self as s3_xml, xmlns_tag};
// -------- CopyObject ---------
@ -39,6 +39,8 @@ pub async fn handle_copy(
) -> Result<Response<ResBody>, Error> {
let copy_precondition = CopyPreconditionHeaders::parse(req)?;
let checksum_algorithm = request_checksum_algorithm(req.headers())?;
let source_object = get_copy_source(&ctx, req).await?;
let (source_version, source_version_data, source_version_meta) =
@ -48,7 +50,7 @@ pub async fn handle_copy(
copy_precondition.check(source_version, &source_version_meta.etag)?;
// Determine encryption parameters
let (source_encryption, source_object_headers) =
let (source_encryption, source_object_meta_inner) =
EncryptionParams::check_decrypt_for_copy_source(
&ctx.garage,
req.headers(),
@ -56,23 +58,54 @@ pub async fn handle_copy(
)?;
let dest_encryption = EncryptionParams::new_from_headers(&ctx.garage, req.headers())?;
// Determine headers of destination object
let dest_object_headers = match req.headers().get("x-amz-metadata-directive") {
// Extract source checksum info before source_object_meta_inner is consumed
let source_checksum = source_object_meta_inner.checksum;
let source_checksum_algorithm = source_checksum.map(|x| x.algorithm());
// If source object has a checksum, the destination object must as well.
// The x-amz-checksum-algorihtm header allows to change that algorithm,
// but if it is absent, we must use the same as before
let checksum_algorithm = checksum_algorithm.or(source_checksum_algorithm);
// Determine metadata of destination object
let was_multipart = source_version_meta.etag.contains('-');
let dest_object_meta = ObjectVersionMetaInner {
headers: match req.headers().get("x-amz-metadata-directive") {
Some(v) if v == hyper::header::HeaderValue::from_static("REPLACE") => {
get_headers(req.headers())?
}
_ => source_object_headers.into_owned(),
_ => source_object_meta_inner.into_owned().headers,
},
checksum: source_checksum,
};
// Do actual object copying
let res = if EncryptionParams::is_same(&source_encryption, &dest_encryption) {
// If source and dest are both unencrypted, or if the encryption keys
// are the same, we can just copy the metadata and link blocks of the
//
// In any of the following scenarios, we need to read the whole object
// data and re-write it again:
//
// - the data needs to be decrypted or encrypted
// - the requested checksum algorithm requires us to recompute a checksum
// - the original object was a multipart upload and a checksum algorithm
// is defined (AWS specifies that in this case, we must recompute the
// checksum from scratch as if this was a single big object and not
// a multipart object, as the checksums are not computed in the same way)
//
// In other cases, we can just copy the metadata and reference the same blocks.
//
// See: https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html
let must_recopy = !EncryptionParams::is_same(&source_encryption, &dest_encryption)
|| source_checksum_algorithm != checksum_algorithm
|| (was_multipart && checksum_algorithm.is_some());
let res = if !must_recopy {
// In most cases, we can just copy the metadata and link blocks of the
// old object from the new object.
handle_copy_metaonly(
ctx,
dest_key,
dest_object_headers,
dest_object_meta,
dest_encryption,
source_version,
source_version_data,
@ -80,16 +113,27 @@ pub async fn handle_copy(
)
.await?
} else {
let expected_checksum = ExpectedChecksums {
md5: None,
sha256: None,
extra: source_checksum,
};
let checksum_mode = if was_multipart || source_checksum_algorithm != checksum_algorithm {
ChecksumMode::Calculate(checksum_algorithm)
} else {
ChecksumMode::Verify(&expected_checksum)
};
// If source and dest encryption use different keys,
// we must decrypt content and re-encrypt, so rewrite all data blocks.
handle_copy_reencrypt(
ctx,
dest_key,
dest_object_headers,
dest_object_meta,
dest_encryption,
source_version,
source_version_data,
source_encryption,
checksum_mode,
)
.await?
};
@ -115,7 +159,7 @@ pub async fn handle_copy(
async fn handle_copy_metaonly(
ctx: ReqCtx,
dest_key: &str,
dest_object_headers: ObjectVersionHeaders,
dest_object_meta: ObjectVersionMetaInner,
dest_encryption: EncryptionParams,
source_version: &ObjectVersion,
source_version_data: &ObjectVersionData,
@ -132,7 +176,7 @@ async fn handle_copy_metaonly(
let new_timestamp = now_msec();
let new_meta = ObjectVersionMeta {
encryption: dest_encryption.encrypt_headers(dest_object_headers)?,
encryption: dest_encryption.encrypt_meta(dest_object_meta)?,
size: source_version_meta.size,
etag: source_version_meta.etag.clone(),
};
@ -180,6 +224,7 @@ async fn handle_copy_metaonly(
timestamp: new_timestamp,
state: ObjectVersionState::Uploading {
encryption: new_meta.encryption.clone(),
checksum_algorithm: None,
multipart: false,
},
};
@ -252,11 +297,12 @@ async fn handle_copy_metaonly(
async fn handle_copy_reencrypt(
ctx: ReqCtx,
dest_key: &str,
dest_object_headers: ObjectVersionHeaders,
dest_object_meta: ObjectVersionMetaInner,
dest_encryption: EncryptionParams,
source_version: &ObjectVersion,
source_version_data: &ObjectVersionData,
source_encryption: EncryptionParams,
checksum_mode: ChecksumMode<'_>,
) -> Result<SaveStreamResult, Error> {
// basically we will read the source data (decrypt if necessary)
// and save that in a new object (encrypt if necessary),
@ -270,12 +316,11 @@ async fn handle_copy_reencrypt(
save_stream(
&ctx,
dest_object_headers,
dest_object_meta,
dest_encryption,
source_stream.map_err(|e| Error::from(GarageError::from(e))),
&dest_key.to_string(),
None,
None,
checksum_mode,
)
.await
}
@ -313,8 +358,12 @@ pub async fn handle_upload_part_copy(
req.headers(),
&source_version_meta.encryption,
)?;
let dest_object_encryption = match dest_version.state {
ObjectVersionState::Uploading { encryption, .. } => encryption,
let (dest_object_encryption, dest_object_checksum_algorithm) = match dest_version.state {
ObjectVersionState::Uploading {
encryption,
checksum_algorithm,
..
} => (encryption, checksum_algorithm),
_ => unreachable!(),
};
let (dest_encryption, _) =
@ -412,7 +461,9 @@ pub async fn handle_upload_part_copy(
dest_mpu_part_key,
MpuPart {
version: dest_version_id,
// These are all filled in later (bottom of this function)
etag: None,
checksum: None,
size: None,
},
);
@ -429,7 +480,8 @@ pub async fn handle_upload_part_copy(
garage.version_table.insert(&dest_version).await?;
// Now, actually copy the blocks
let mut md5hasher = Md5::new();
let mut checksummer = Checksummer::init(&Default::default(), !dest_encryption.is_encrypted())
.add(dest_object_checksum_algorithm);
// First, create a stream that is able to read the source blocks
// and extract the subrange if necessary.
@ -495,18 +547,24 @@ pub async fn handle_upload_part_copy(
}
let data_len = data.len() as u64;
md5hasher.update(&data[..]);
let (final_data, must_upload, final_hash) = match existing_block_hash {
Some(hash) if same_encryption => (data, false, hash),
_ => tokio::task::spawn_blocking(move || {
let (checksummer_updated, (data_to_upload, final_hash)) =
tokio::task::spawn_blocking(move || {
checksummer.update(&data[..]);
let tup = match existing_block_hash {
Some(hash) if same_encryption => (None, hash),
_ => {
let data_enc = dest_encryption.encrypt_block(data)?;
let hash = blake2sum(&data_enc);
Ok::<_, Error>((data_enc, true, hash))
(Some(data_enc), hash)
}
};
Ok::<_, Error>((checksummer, tup))
})
.await
.unwrap()?,
};
.unwrap()?;
checksummer = checksummer_updated;
dest_version.blocks.clear();
dest_version.blocks.put(
@ -531,7 +589,7 @@ pub async fn handle_upload_part_copy(
// Thing 1: if the block is not exactly a block that existed before,
// we need to insert that data as a new block.
async {
if must_upload {
if let Some(final_data) = data_to_upload {
garage
.block_manager
.rpc_put_block(final_hash, final_data, dest_encryption.is_encrypted(), None)
@ -552,8 +610,9 @@ pub async fn handle_upload_part_copy(
assert_eq!(current_offset, source_range.length);
let data_md5sum = md5hasher.finalize();
let etag = dest_encryption.etag_from_md5(&data_md5sum);
let checksums = checksummer.finalize();
let etag = dest_encryption.etag_from_md5(&checksums.md5);
let checksum = checksums.extract(dest_object_checksum_algorithm);
// Put the part's ETag in the Versiontable
dest_mpu.parts.put(
@ -561,6 +620,7 @@ pub async fn handle_upload_part_copy(
MpuPart {
version: dest_version_id,
etag: Some(etag.clone()),
checksum,
size: Some(current_offset),
},
);

44
src/api/s3/encryption.rs
View file

@ -26,9 +26,10 @@ use garage_util::error::Error as GarageError;
use garage_util::migrate::Migrate;
use garage_model::garage::Garage;
use garage_model::s3::object_table::{ObjectVersionEncryption, ObjectVersionHeaders};
use garage_model::s3::object_table::{ObjectVersionEncryption, ObjectVersionMetaInner};
use crate::common_error::*;
use crate::s3::checksum::Md5Checksum;
use crate::s3::error::Error;
const X_AMZ_SERVER_SIDE_ENCRYPTION_CUSTOMER_ALGORITHM: HeaderName =
@ -124,7 +125,7 @@ impl EncryptionParams {
garage: &Garage,
headers: &HeaderMap,
obj_enc: &'a ObjectVersionEncryption,
) -> Result<(Self, Cow<'a, ObjectVersionHeaders>), Error> {
) -> Result<(Self, Cow<'a, ObjectVersionMetaInner>), Error> {
let key = parse_request_headers(
headers,
&X_AMZ_SERVER_SIDE_ENCRYPTION_CUSTOMER_ALGORITHM,
@ -138,7 +139,7 @@ impl EncryptionParams {
garage: &Garage,
headers: &HeaderMap,
obj_enc: &'a ObjectVersionEncryption,
) -> Result<(Self, Cow<'a, ObjectVersionHeaders>), Error> {
) -> Result<(Self, Cow<'a, ObjectVersionMetaInner>), Error> {
let key = parse_request_headers(
headers,
&X_AMZ_COPY_SOURCE_SERVER_SIDE_ENCRYPTION_CUSTOMER_ALGORITHM,
@ -152,14 +153,11 @@ impl EncryptionParams {
garage: &Garage,
key: Option<(Key<Aes256Gcm>, Md5Output)>,
obj_enc: &'a ObjectVersionEncryption,
) -> Result<(Self, Cow<'a, ObjectVersionHeaders>), Error> {
) -> Result<(Self, Cow<'a, ObjectVersionMetaInner>), Error> {
match (key, &obj_enc) {
(
Some((client_key, client_key_md5)),
ObjectVersionEncryption::SseC {
headers,
compressed,
},
ObjectVersionEncryption::SseC { inner, compressed },
) => {
let enc = Self::SseC {
client_key,
@ -170,13 +168,13 @@ impl EncryptionParams {
None
},
};
let plaintext = enc.decrypt_blob(&headers)?;
let headers = ObjectVersionHeaders::decode(&plaintext)
.ok_or_internal_error("Could not decode encrypted headers")?;
Ok((enc, Cow::Owned(headers)))
let plaintext = enc.decrypt_blob(&inner)?;
let inner = ObjectVersionMetaInner::decode(&plaintext)
.ok_or_internal_error("Could not decode encrypted metadata")?;
Ok((enc, Cow::Owned(inner)))
}
(None, ObjectVersionEncryption::Plaintext { headers }) => {
Ok((Self::Plaintext, Cow::Borrowed(headers)))
(None, ObjectVersionEncryption::Plaintext { inner }) => {
Ok((Self::Plaintext, Cow::Borrowed(inner)))
}
(_, ObjectVersionEncryption::SseC { .. }) => {
Err(Error::bad_request("Object is encrypted"))
@ -188,29 +186,31 @@ impl EncryptionParams {
}
}
pub fn encrypt_headers(
pub fn encrypt_meta(
&self,
h: ObjectVersionHeaders,
meta: ObjectVersionMetaInner,
) -> Result<ObjectVersionEncryption, Error> {
match self {
Self::SseC {
compression_level, ..
} => {
let plaintext = h.encode().map_err(GarageError::from)?;
let plaintext = meta.encode().map_err(GarageError::from)?;
let ciphertext = self.encrypt_blob(&plaintext)?;
Ok(ObjectVersionEncryption::SseC {
headers: ciphertext.into_owned(),
inner: ciphertext.into_owned(),
compressed: compression_level.is_some(),
})
}
Self::Plaintext => Ok(ObjectVersionEncryption::Plaintext { headers: h }),
Self::Plaintext => Ok(ObjectVersionEncryption::Plaintext { inner: meta }),
}
}
// ---- generating object Etag values ----
pub fn etag_from_md5(&self, md5sum: &[u8]) -> String {
pub fn etag_from_md5(&self, md5sum: &Option<Md5Checksum>) -> String {
match self {
Self::Plaintext => hex::encode(md5sum),
Self::Plaintext => md5sum
.map(|x| hex::encode(&x[..]))
.expect("md5 digest should have been computed"),
Self::SseC { .. } => {
// AWS specifies that for encrypted objects, the Etag is not
// the md5sum of the data, but doesn't say what it is.
@ -224,7 +224,7 @@ impl EncryptionParams {
// ---- generic function for encrypting / decrypting blobs ----
// Prepends a randomly-generated nonce to the encrypted value.
// This is used for encrypting object headers and inlined data for small objects.
// This is used for encrypting object metadata and inlined data for small objects.
// This does not compress anything.
pub fn encrypt_blob<'a>(&self, blob: &'a [u8]) -> Result<Cow<'a, [u8]>, Error> {

6
src/api/s3/error.rs
View file

@ -69,6 +69,10 @@ pub enum Error {
#[error(display = "Invalid encryption algorithm: {:?}, should be AES256", _0)]
InvalidEncryptionAlgorithm(String),
/// The client sent invalid XML data
#[error(display = "Invalid digest: {}", _0)]
InvalidDigest(String),
/// The client sent a request for an action not supported by garage
#[error(display = "Unimplemented action: {}", _0)]
NotImplemented(String),
@ -129,6 +133,7 @@ impl Error {
Error::NotImplemented(_) => "NotImplemented",
Error::InvalidXml(_) => "MalformedXML",
Error::InvalidRange(_) => "InvalidRange",
Error::InvalidDigest(_) => "InvalidDigest",
Error::InvalidUtf8Str(_) | Error::InvalidUtf8String(_) => "InvalidRequest",
Error::InvalidEncryptionAlgorithm(_) => "InvalidEncryptionAlgorithmError",
}
@ -148,6 +153,7 @@ impl ApiError for Error {
| Error::InvalidPart
| Error::InvalidPartOrder
| Error::EntityTooSmall
| Error::InvalidDigest(_)
| Error::InvalidEncryptionAlgorithm(_)
| Error::InvalidXml(_)
| Error::InvalidUtf8Str(_)

105
src/api/s3/get.rs
View file

@ -27,6 +27,7 @@ use garage_model::s3::version_table::*;
use crate::helpers::*;
use crate::s3::api_server::ResBody;
use crate::s3::checksum::{add_checksum_response_headers, X_AMZ_CHECKSUM_MODE};
use crate::s3::encryption::EncryptionParams;
use crate::s3::error::*;
@ -45,8 +46,9 @@ pub struct GetObjectOverrides {
fn object_headers(
version: &ObjectVersion,
version_meta: &ObjectVersionMeta,
headers: &ObjectVersionHeaders,
meta_inner: &ObjectVersionMetaInner,
encryption: EncryptionParams,
checksum_mode: ChecksumMode,
) -> http::response::Builder {
debug!("Version meta: {:?}", version_meta);
@ -65,7 +67,7 @@ fn object_headers(
// have the same name (ignoring case) into a comma-delimited list.
// See: https://docs.aws.amazon.com/AmazonS3/latest/userguide/UsingMetadata.html
let mut headers_by_name = BTreeMap::new();
for (name, value) in headers.0.iter() {
for (name, value) in meta_inner.headers.iter() {
match headers_by_name.get_mut(name) {
None => {
headers_by_name.insert(name, vec![value.as_str()]);
@ -80,6 +82,10 @@ fn object_headers(
resp = resp.header(name, values.join(","));
}
if checksum_mode.enabled {
resp = add_checksum_response_headers(&meta_inner.checksum, resp);
}
encryption.add_response_headers(&mut resp);
resp
@ -199,6 +205,8 @@ pub async fn handle_head_without_ctx(
let (encryption, headers) =
EncryptionParams::check_decrypt(&garage, req.headers(), &version_meta.encryption)?;
let checksum_mode = checksum_mode(&req);
if let Some(pn) = part_number {
match version_data {
ObjectVersionData::Inline(_, _) => {
@ -206,8 +214,13 @@ pub async fn handle_head_without_ctx(
return Err(Error::InvalidPart);
}
let bytes_len = version_meta.size;
Ok(
object_headers(object_version, version_meta, &headers, encryption)
Ok(object_headers(
object_version,
version_meta,
&headers,
encryption,
checksum_mode,
)
.header(CONTENT_LENGTH, format!("{}", bytes_len))
.header(
CONTENT_RANGE,
@ -215,8 +228,7 @@ pub async fn handle_head_without_ctx(
)
.header(X_AMZ_MP_PARTS_COUNT, "1")
.status(StatusCode::PARTIAL_CONTENT)
.body(empty_body())?,
)
.body(empty_body())?)
}
ObjectVersionData::FirstBlock(_, _) => {
let version = garage
@ -228,8 +240,13 @@ pub async fn handle_head_without_ctx(
let (part_offset, part_end) =
calculate_part_bounds(&version, pn).ok_or(Error::InvalidPart)?;
Ok(
object_headers(object_version, version_meta, &headers, encryption)
Ok(object_headers(
object_version,
version_meta,
&headers,
encryption,
checksum_mode,
)
.header(CONTENT_LENGTH, format!("{}", part_end - part_offset))
.header(
CONTENT_RANGE,
@ -242,18 +259,21 @@ pub async fn handle_head_without_ctx(
)
.header(X_AMZ_MP_PARTS_COUNT, format!("{}", version.n_parts()?))
.status(StatusCode::PARTIAL_CONTENT)
.body(empty_body())?,
)
.body(empty_body())?)
}
_ => unreachable!(),
}
} else {
Ok(
object_headers(object_version, version_meta, &headers, encryption)
Ok(object_headers(
object_version,
version_meta,
&headers,
encryption,
checksum_mode,
)
.header(CONTENT_LENGTH, format!("{}", version_meta.size))
.status(StatusCode::OK)
.body(empty_body())?,
)
.body(empty_body())?)
}
}
@ -307,12 +327,24 @@ pub async fn handle_get_without_ctx(
let (enc, headers) =
EncryptionParams::check_decrypt(&garage, req.headers(), &last_v_meta.encryption)?;
let checksum_mode = checksum_mode(&req);
match (part_number, parse_range_header(req, last_v_meta.size)?) {
(Some(_), Some(_)) => Err(Error::bad_request(
"Cannot specify both partNumber and Range header",
)),
(Some(pn), None) => {
handle_get_part(garage, last_v, last_v_data, last_v_meta, enc, &headers, pn).await
handle_get_part(
garage,
last_v,
last_v_data,
last_v_meta,
enc,
&headers,
pn,
checksum_mode,
)
.await
}
(None, Some(range)) => {
handle_get_range(
@ -324,6 +356,7 @@ pub async fn handle_get_without_ctx(
&headers,
range.start,
range.start + range.length,
checksum_mode,
)
.await
}
@ -336,6 +369,7 @@ pub async fn handle_get_without_ctx(
enc,
&headers,
overrides,
checksum_mode,
)
.await
}
@ -348,10 +382,17 @@ async fn handle_get_full(
version_data: &ObjectVersionData,
version_meta: &ObjectVersionMeta,
encryption: EncryptionParams,
headers: &ObjectVersionHeaders,
meta_inner: &ObjectVersionMetaInner,
overrides: GetObjectOverrides,
checksum_mode: ChecksumMode,
) -> Result<Response<ResBody>, Error> {
let mut resp_builder = object_headers(version, version_meta, &headers, encryption)
let mut resp_builder = object_headers(
version,
version_meta,
&meta_inner,
encryption,
checksum_mode,
)
.header(CONTENT_LENGTH, format!("{}", version_meta.size))
.status(StatusCode::OK);
getobject_override_headers(overrides, &mut resp_builder)?;
@ -432,14 +473,15 @@ async fn handle_get_range(
version_data: &ObjectVersionData,
version_meta: &ObjectVersionMeta,
encryption: EncryptionParams,
headers: &ObjectVersionHeaders,
meta_inner: &ObjectVersionMetaInner,
begin: u64,
end: u64,
checksum_mode: ChecksumMode,
) -> Result<Response<ResBody>, Error> {
// Here we do not use getobject_override_headers because we don't
// want to add any overridden headers (those should not be added
// when returning PARTIAL_CONTENT)
let resp_builder = object_headers(version, version_meta, headers, encryption)
let resp_builder = object_headers(version, version_meta, meta_inner, encryption, checksum_mode)
.header(CONTENT_LENGTH, format!("{}", end - begin))
.header(
CONTENT_RANGE,
@ -480,11 +522,18 @@ async fn handle_get_part(
version_data: &ObjectVersionData,
version_meta: &ObjectVersionMeta,
encryption: EncryptionParams,
headers: &ObjectVersionHeaders,
meta_inner: &ObjectVersionMetaInner,
part_number: u64,
checksum_mode: ChecksumMode,
) -> Result<Response<ResBody>, Error> {
// Same as for get_range, no getobject_override_headers
let resp_builder = object_headers(object_version, version_meta, headers, encryption)
let resp_builder = object_headers(
object_version,
version_meta,
meta_inner,
encryption,
checksum_mode,
)
.status(StatusCode::PARTIAL_CONTENT);
match version_data {
@ -567,6 +616,20 @@ fn calculate_part_bounds(v: &Version, part_number: u64) -> Option<(u64, u64)> {
None
}
struct ChecksumMode {
enabled: bool,
}
fn checksum_mode(req: &Request<impl Body>) -> ChecksumMode {
ChecksumMode {
enabled: req
.headers()
.get(X_AMZ_CHECKSUM_MODE)
.map(|x| x == "ENABLED")
.unwrap_or(false),
}
}
fn body_from_blocks_range(
garage: Arc<Garage>,
encryption: EncryptionParams,

69
src/api/s3/list.rs
View file

@ -2,7 +2,7 @@ use std::collections::{BTreeMap, BTreeSet};
use std::iter::{Iterator, Peekable};
use base64::prelude::*;
use hyper::Response;
use hyper::{Request, Response};
use garage_util::data::*;
use garage_util::error::Error as GarageError;
@ -15,7 +15,8 @@ use garage_table::EnumerationOrder;
use crate::encoding::*;
use crate::helpers::*;
use crate::s3::api_server::ResBody;
use crate::s3::api_server::{ReqBody, ResBody};
use crate::s3::encryption::EncryptionParams;
use crate::s3::error::*;
use crate::s3::multipart as s3_multipart;
use crate::s3::xml as s3_xml;
@ -271,13 +272,21 @@ pub async fn handle_list_multipart_upload(
pub async fn handle_list_parts(
ctx: ReqCtx,
req: Request<ReqBody>,
query: &ListPartsQuery,
) -> Result<Response<ResBody>, Error> {
debug!("ListParts {:?}", query);
let upload_id = s3_multipart::decode_upload_id(&query.upload_id)?;
let (_, _, mpu) = s3_multipart::get_upload(&ctx, &query.key, &upload_id).await?;
let (_, object_version, mpu) = s3_multipart::get_upload(&ctx, &query.key, &upload_id).await?;
let object_encryption = match object_version.state {
ObjectVersionState::Uploading { encryption, .. } => encryption,
_ => unreachable!(),
};
let encryption_res =
EncryptionParams::check_decrypt(&ctx.garage, req.headers(), &object_encryption);
let (info, next) = fetch_part_info(query, &mpu)?;
@ -296,11 +305,40 @@ pub async fn handle_list_parts(
is_truncated: s3_xml::Value(format!("{}", next.is_some())),
parts: info
.iter()
.map(|part| s3_xml::PartItem {
.map(|part| {
// hide checksum if object is encrypted and the decryption
// keys are not provided
let checksum = part.checksum.filter(|_| encryption_res.is_ok());
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),
checksum_crc32: match &checksum {
Some(ChecksumValue::Crc32(x)) => {
Some(s3_xml::Value(BASE64_STANDARD.encode(&x)))
}
_ => None,
},
checksum_crc32c: match &checksum {
Some(ChecksumValue::Crc32c(x)) => {
Some(s3_xml::Value(BASE64_STANDARD.encode(&x)))
}
_ => None,
},
checksum_sha1: match &checksum {
Some(ChecksumValue::Sha1(x)) => {
Some(s3_xml::Value(BASE64_STANDARD.encode(&x)))
}
_ => None,
},
checksum_sha256: match &checksum {
Some(ChecksumValue::Sha256(x)) => {
Some(s3_xml::Value(BASE64_STANDARD.encode(&x)))
}
_ => None,
},
}
})
.collect(),
@ -346,6 +384,7 @@ struct PartInfo<'a> {
timestamp: u64,
part_number: u64,
size: u64,
checksum: Option<ChecksumValue>,
}
enum ExtractionResult {
@ -486,6 +525,7 @@ fn fetch_part_info<'a>(
timestamp: pk.timestamp,
etag,
size,
checksum: p.checksum,
};
match parts.last_mut() {
Some(lastpart) if lastpart.part_number == pk.part_number => {
@ -945,9 +985,13 @@ mod tests {
state: ObjectVersionState::Uploading {
multipart: true,
encryption: ObjectVersionEncryption::Plaintext {
headers: ObjectVersionHeaders(vec![]),
inner: ObjectVersionMetaInner {
headers: vec![],
checksum: None,
},
},
checksum_algorithm: None,
},
}
}
@ -1135,6 +1179,7 @@ mod tests {
version: uuid,
size: Some(3),
etag: Some("etag1".into()),
checksum: None,
},
),
(
@ -1146,6 +1191,7 @@ mod tests {
version: uuid,
size: None,
etag: None,
checksum: None,
},
),
(
@ -1157,6 +1203,7 @@ mod tests {
version: uuid,
size: Some(10),
etag: Some("etag2".into()),
checksum: None,
},
),
(
@ -1168,6 +1215,7 @@ mod tests {
version: uuid,
size: Some(7),
etag: Some("etag3".into()),
checksum: None,
},
),
(
@ -1179,6 +1227,7 @@ mod tests {
version: uuid,
size: Some(5),
etag: Some("etag4".into()),
checksum: None,
},
),
];
@ -1217,12 +1266,14 @@ mod tests {
etag: "etag1",
timestamp: TS,
part_number: 1,
size: 3
size: 3,
checksum: None,
},
PartInfo {
etag: "etag2",
timestamp: TS,
part_number: 3,
checksum: None,
size: 10
},
]
@ -1238,12 +1289,14 @@ mod tests {
PartInfo {
etag: "etag3",
timestamp: TS,
checksum: None,
part_number: 5,
size: 7
},
PartInfo {
etag: "etag4",
timestamp: TS,
checksum: None,
part_number: 8,
size: 5
},
@ -1267,24 +1320,28 @@ mod tests {
PartInfo {
etag: "etag1",
timestamp: TS,
checksum: None,
part_number: 1,
size: 3
},
PartInfo {
etag: "etag2",
timestamp: TS,
checksum: None,
part_number: 3,
size: 10
},
PartInfo {
etag: "etag3",
timestamp: TS,
checksum: None,
part_number: 5,
size: 7
},
PartInfo {
etag: "etag4",
timestamp: TS,
checksum: None,
part_number: 8,
size: 5
},

1
src/api/s3/mod.rs
View file

@ -13,6 +13,7 @@ mod post_object;
mod put;
mod website;
mod checksum;
mod encryption;
mod router;
pub mod xml;

155
src/api/s3/multipart.rs
View file

@ -1,9 +1,10 @@
use std::collections::HashMap;
use std::convert::TryInto;
use std::sync::Arc;
use base64::prelude::*;
use futures::prelude::*;
use hyper::{Request, Response};
use md5::{Digest as Md5Digest, Md5};
use garage_table::*;
use garage_util::data::*;
@ -16,6 +17,7 @@ use garage_model::s3::version_table::*;
use crate::helpers::*;
use crate::s3::api_server::{ReqBody, ResBody};
use crate::s3::checksum::*;
use crate::s3::encryption::EncryptionParams;
use crate::s3::error::*;
use crate::s3::put::*;
@ -41,10 +43,16 @@ pub async fn handle_create_multipart_upload(
let timestamp = next_timestamp(existing_object.as_ref());
let headers = get_headers(req.headers())?;
let meta = ObjectVersionMetaInner {
headers,
checksum: None,
};
// Determine whether object should be encrypted, and if so the key
let encryption = EncryptionParams::new_from_headers(&garage, req.headers())?;
let object_encryption = encryption.encrypt_headers(headers)?;
let object_encryption = encryption.encrypt_meta(meta)?;
let checksum_algorithm = request_checksum_algorithm(req.headers())?;
// Create object in object table
let object_version = ObjectVersion {
@ -53,6 +61,7 @@ pub async fn handle_create_multipart_upload(
state: ObjectVersionState::Uploading {
multipart: true,
encryption: object_encryption,
checksum_algorithm,
},
};
let object = Object::new(*bucket_id, key.to_string(), vec![object_version]);
@ -90,9 +99,13 @@ pub async fn handle_put_part(
let upload_id = decode_upload_id(upload_id)?;
let content_md5 = match req.headers().get("content-md5") {
let expected_checksums = ExpectedChecksums {
md5: match req.headers().get("content-md5") {
Some(x) => Some(x.to_str()?.to_string()),
None => None,
},
sha256: content_sha256,
extra: request_checksum_value(req.headers())?,
};
// Read first chuck, and at the same time try to get object to see if it exists
@ -106,8 +119,12 @@ pub async fn handle_put_part(
futures::try_join!(get_upload(&ctx, &key, &upload_id), chunker.next(),)?;
// Check encryption params
let object_encryption = match object_version.state {
ObjectVersionState::Uploading { encryption, .. } => encryption,
let (object_encryption, checksum_algorithm) = match object_version.state {
ObjectVersionState::Uploading {
encryption,
checksum_algorithm,
..
} => (encryption, checksum_algorithm),
_ => unreachable!(),
};
let (encryption, _) =
@ -138,7 +155,9 @@ pub async fn handle_put_part(
mpu_part_key,
MpuPart {
version: version_uuid,
// all these are filled in later, at the end of this function
etag: None,
checksum: None,
size: None,
},
);
@ -152,32 +171,31 @@ pub async fn handle_put_part(
garage.version_table.insert(&version).await?;
// Copy data to version
let (total_size, data_md5sum, data_sha256sum, _) = read_and_put_blocks(
let checksummer =
Checksummer::init(&expected_checksums, !encryption.is_encrypted()).add(checksum_algorithm);
let (total_size, checksums, _) = read_and_put_blocks(
&ctx,
&version,
encryption,
part_number,
first_block,
&mut chunker,
checksummer,
)
.await?;
// Verify that checksums map
ensure_checksum_matches(
&data_md5sum,
data_sha256sum,
content_md5.as_deref(),
content_sha256,
)?;
checksums.verify(&expected_checksums)?;
// Store part etag in version
let etag = encryption.etag_from_md5(&data_md5sum);
let etag = encryption.etag_from_md5(&checksums.md5);
mpu.parts.put(
mpu_part_key,
MpuPart {
version: version_uuid,
etag: Some(etag.clone()),
checksum: checksums.extract(checksum_algorithm),
size: Some(total_size),
},
);
@ -189,6 +207,7 @@ pub async fn handle_put_part(
let mut resp = Response::builder().header("ETag", format!("\"{}\"", etag));
encryption.add_response_headers(&mut resp);
let resp = add_checksum_response_headers(&expected_checksums.extra, resp);
Ok(resp.body(empty_body())?)
}
@ -236,10 +255,11 @@ pub async fn handle_complete_multipart_upload(
bucket_name,
..
} = &ctx;
let (req_head, req_body) = req.into_parts();
let body = http_body_util::BodyExt::collect(req.into_body())
.await?
.to_bytes();
let expected_checksum = request_checksum_value(&req_head.headers)?;
let body = http_body_util::BodyExt::collect(req_body).await?.to_bytes();
if let Some(content_sha256) = content_sha256 {
verify_signed_content(content_sha256, &body[..])?;
@ -263,8 +283,12 @@ pub async fn handle_complete_multipart_upload(
return Err(Error::bad_request("No data was uploaded"));
}
let object_encryption = match object_version.state {
ObjectVersionState::Uploading { encryption, .. } => encryption,
let (object_encryption, checksum_algorithm) = match object_version.state {
ObjectVersionState::Uploading {
encryption,
checksum_algorithm,
..
} => (encryption, checksum_algorithm),
_ => unreachable!(),
};
@ -292,6 +316,13 @@ pub async fn handle_complete_multipart_upload(
for req_part in body_list_of_parts.iter() {
match have_parts.get(&req_part.part_number) {
Some(part) if part.etag.as_ref() == Some(&req_part.etag) && part.size.is_some() => {
// alternative version: if req_part.checksum.is_some() && part.checksum != req_part.checksum {
if part.checksum != req_part.checksum {
return Err(Error::InvalidDigest(format!(
"Invalid checksum for part {}: in request = {:?}, uploaded part = {:?}",
req_part.part_number, req_part.checksum, part.checksum
)));
}
parts.push(*part)
}
_ => return Err(Error::InvalidPart),
@ -339,18 +370,23 @@ pub async fn handle_complete_multipart_upload(
});
garage.block_ref_table.insert_many(block_refs).await?;
// Calculate etag of final object
// Calculate checksum and etag of final object
// To understand how etags are calculated, read more here:
// https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html
// https://teppen.io/2018/06/23/aws_s3_etags/
let mut etag_md5_hasher = Md5::new();
let mut checksummer = MultipartChecksummer::init(checksum_algorithm);
for part in parts.iter() {
etag_md5_hasher.update(part.etag.as_ref().unwrap().as_bytes());
checksummer.update(part.etag.as_ref().unwrap(), part.checksum)?;
}
let etag = format!(
"{}-{}",
hex::encode(etag_md5_hasher.finalize()),
parts.len()
);
let (checksum_md5, checksum_extra) = checksummer.finalize();
if expected_checksum.is_some() && checksum_extra != expected_checksum {
return Err(Error::InvalidDigest(
"Failed to validate x-amz-checksum-*".into(),
));
}
let etag = format!("{}-{}", hex::encode(&checksum_md5[..]), parts.len());
// Calculate total size of final object
let total_size = parts.iter().map(|x| x.size.unwrap()).sum();
@ -363,6 +399,20 @@ pub async fn handle_complete_multipart_upload(
return Err(e);
}
// If there is a checksum algorithm, update metadata with checksum
let object_encryption = match checksum_algorithm {
None => object_encryption,
Some(_) => {
let (encryption, meta) =
EncryptionParams::check_decrypt(&garage, &req_head.headers, &object_encryption)?;
let new_meta = ObjectVersionMetaInner {
headers: meta.into_owned().headers,
checksum: checksum_extra,
};
encryption.encrypt_meta(new_meta)?
}
};
// Write final object version
object_version.state = ObjectVersionState::Complete(ObjectVersionData::FirstBlock(
ObjectVersionMeta {
@ -383,10 +433,28 @@ pub async fn handle_complete_multipart_upload(
bucket: s3_xml::Value(bucket_name.to_string()),
key: s3_xml::Value(key),
etag: s3_xml::Value(format!("\"{}\"", etag)),
checksum_crc32: match &checksum_extra {
Some(ChecksumValue::Crc32(x)) => Some(s3_xml::Value(BASE64_STANDARD.encode(&x))),
_ => None,
},
checksum_crc32c: match &checksum_extra {
Some(ChecksumValue::Crc32c(x)) => Some(s3_xml::Value(BASE64_STANDARD.encode(&x))),
_ => None,
},
checksum_sha1: match &checksum_extra {
Some(ChecksumValue::Sha1(x)) => Some(s3_xml::Value(BASE64_STANDARD.encode(&x))),
_ => None,
},
checksum_sha256: match &checksum_extra {
Some(ChecksumValue::Sha256(x)) => Some(s3_xml::Value(BASE64_STANDARD.encode(&x))),
_ => None,
},
};
let xml = s3_xml::to_xml_with_header(&result)?;
Ok(Response::new(string_body(xml)))
let resp = Response::builder();
let resp = add_checksum_response_headers(&expected_checksum, resp);
Ok(resp.body(string_body(xml))?)
}
pub async fn handle_abort_multipart_upload(
@ -455,6 +523,7 @@ pub fn decode_upload_id(id: &str) -> Result<Uuid, Error> {
struct CompleteMultipartUploadPart {
etag: String,
part_number: u64,
checksum: Option<ChecksumValue>,
}
fn parse_complete_multipart_upload_body(
@ -480,9 +549,41 @@ fn parse_complete_multipart_upload_body(
.children()
.find(|e| e.has_tag_name("PartNumber"))?
.text()?;
let checksum = if let Some(crc32) =
item.children().find(|e| e.has_tag_name("ChecksumCRC32"))
{
Some(ChecksumValue::Crc32(
BASE64_STANDARD.decode(crc32.text()?).ok()?[..]
.try_into()
.ok()?,
))
} else if let Some(crc32c) = item.children().find(|e| e.has_tag_name("ChecksumCRC32C"))
{
Some(ChecksumValue::Crc32c(
BASE64_STANDARD.decode(crc32c.text()?).ok()?[..]
.try_into()
.ok()?,
))
} else if let Some(sha1) = item.children().find(|e| e.has_tag_name("ChecksumSHA1")) {
Some(ChecksumValue::Sha1(
BASE64_STANDARD.decode(sha1.text()?).ok()?[..]
.try_into()
.ok()?,
))
} else if let Some(sha256) = item.children().find(|e| e.has_tag_name("ChecksumSHA256"))
{
Some(ChecksumValue::Sha256(
BASE64_STANDARD.decode(sha256.text()?).ok()?[..]
.try_into()
.ok()?,
))
} else {
None
};
parts.push(CompleteMultipartUploadPart {
etag: etag.trim_matches('"').to_string(),
part_number: part_number.parse().ok()?,
checksum,
});
} else {
return None;

28
src/api/s3/post_object.rs
View file

@ -14,13 +14,15 @@ use multer::{Constraints, Multipart, SizeLimit};
use serde::Deserialize;
use garage_model::garage::Garage;
use garage_model::s3::object_table::*;
use crate::helpers::*;
use crate::s3::api_server::ResBody;
use crate::s3::checksum::*;
use crate::s3::cors::*;
use crate::s3::encryption::EncryptionParams;
use crate::s3::error::*;
use crate::s3::put::{get_headers, save_stream};
use crate::s3::put::{get_headers, save_stream, ChecksumMode};
use crate::s3::xml as s3_xml;
use crate::signature::payload::{verify_v4, Authorization};
@ -98,10 +100,6 @@ pub async fn handle_post_object(
.ok_or_bad_request("No policy was provided")?
.to_str()?;
let authorization = Authorization::parse_form(&params)?;
let content_md5 = params
.get("content-md5")
.map(HeaderValue::to_str)
.transpose()?;
let key = if key.contains("${filename}") {
// if no filename is provided, don't replace. This matches the behavior of AWS.
@ -226,6 +224,21 @@ pub async fn handle_post_object(
let headers = get_headers(&params)?;
let expected_checksums = ExpectedChecksums {
md5: params
.get("content-md5")
.map(HeaderValue::to_str)
.transpose()?
.map(str::to_string),
sha256: None,
extra: request_checksum_algorithm_value(&params)?,
};
let meta = ObjectVersionMetaInner {
headers,
checksum: expected_checksums.extra,
};
let encryption = EncryptionParams::new_from_headers(&garage, &params)?;
let stream = file_field.map(|r| r.map_err(Into::into));
@ -239,12 +252,11 @@ pub async fn handle_post_object(
let res = save_stream(
&ctx,
headers,
meta,
encryption,
StreamLimiter::new(stream, conditions.content_length),
&key,
content_md5.map(str::to_string),
None,
ChecksumMode::Verify(&expected_checksums),
)
.await?;

205
src/api/s3/put.rs
View file

@ -1,12 +1,9 @@
use std::collections::HashMap;
use std::sync::Arc;
use base64::prelude::*;
use futures::prelude::*;
use futures::stream::FuturesOrdered;
use futures::try_join;
use md5::{digest::generic_array::*, Digest as Md5Digest, Md5};
use sha2::Sha256;
use tokio::sync::mpsc;
@ -22,7 +19,6 @@ use opentelemetry::{
use garage_net::bytes_buf::BytesBuf;
use garage_rpc::rpc_helper::OrderTag;
use garage_table::*;
use garage_util::async_hash::*;
use garage_util::data::*;
use garage_util::error::Error as GarageError;
use garage_util::time::*;
@ -36,16 +32,22 @@ use garage_model::s3::version_table::*;
use crate::helpers::*;
use crate::s3::api_server::{ReqBody, ResBody};
use crate::s3::checksum::*;
use crate::s3::encryption::EncryptionParams;
use crate::s3::error::*;
const PUT_BLOCKS_MAX_PARALLEL: usize = 3;
pub struct SaveStreamResult {
pub version_uuid: Uuid,
pub version_timestamp: u64,
pub(crate) struct SaveStreamResult {
pub(crate) version_uuid: Uuid,
pub(crate) version_timestamp: u64,
/// Etag WITHOUT THE QUOTES (just the hex value)
pub etag: String,
pub(crate) etag: String,
}
pub(crate) enum ChecksumMode<'a> {
Verify(&'a ExpectedChecksums),
Calculate(Option<ChecksumAlgorithm>),
}
pub async fn handle_put(
@ -58,24 +60,32 @@ pub async fn handle_put(
let headers = get_headers(req.headers())?;
debug!("Object headers: {:?}", headers);
// Determine whether object should be encrypted, and if so the key
let encryption = EncryptionParams::new_from_headers(&ctx.garage, req.headers())?;
let content_md5 = match req.headers().get("content-md5") {
let expected_checksums = ExpectedChecksums {
md5: match req.headers().get("content-md5") {
Some(x) => Some(x.to_str()?.to_string()),
None => None,
},
sha256: content_sha256,
extra: request_checksum_value(req.headers())?,
};
let meta = ObjectVersionMetaInner {
headers,
checksum: expected_checksums.extra,
};
// Determine whether object should be encrypted, and if so the key
let encryption = EncryptionParams::new_from_headers(&ctx.garage, req.headers())?;
let stream = body_stream(req.into_body());
let res = save_stream(
&ctx,
headers,
meta,
encryption,
stream,
key,
content_md5,
content_sha256,
ChecksumMode::Verify(&expected_checksums),
)
.await?;
@ -83,17 +93,17 @@ pub async fn handle_put(
.header("x-amz-version-id", hex::encode(res.version_uuid))
.header("ETag", format!("\"{}\"", res.etag));
encryption.add_response_headers(&mut resp);
let resp = add_checksum_response_headers(&expected_checksums.extra, resp);
Ok(resp.body(empty_body())?)
}
pub(crate) async fn save_stream<S: Stream<Item = Result<Bytes, Error>> + Unpin>(
ctx: &ReqCtx,
headers: ObjectVersionHeaders,
mut meta: ObjectVersionMetaInner,
encryption: EncryptionParams,
body: S,
key: &String,
content_md5: Option<String>,
content_sha256: Option<FixedBytes32>,
checksum_mode: ChecksumMode<'_>,
) -> Result<SaveStreamResult, Error> {
let ReqCtx {
garage, bucket_id, ..
@ -107,32 +117,36 @@ pub(crate) async fn save_stream<S: Stream<Item = Result<Bytes, Error>> + Unpin>(
let first_block = first_block_opt.unwrap_or_default();
let object_encryption = encryption.encrypt_headers(headers)?;
// Generate identity of new version
let version_uuid = gen_uuid();
let version_timestamp = next_timestamp(existing_object.as_ref());
let mut checksummer = match checksum_mode {
ChecksumMode::Verify(expected) => Checksummer::init(expected, !encryption.is_encrypted()),
ChecksumMode::Calculate(algo) => {
Checksummer::init(&Default::default(), !encryption.is_encrypted()).add(algo)
}
};
// If body is small enough, store it directly in the object table
// as "inline data". We can then return immediately.
if first_block.len() < INLINE_THRESHOLD {
let mut md5sum = Md5::new();
md5sum.update(&first_block[..]);
let data_md5sum = md5sum.finalize();
checksummer.update(&first_block);
let checksums = checksummer.finalize();
let data_sha256sum = sha256sum(&first_block[..]);
ensure_checksum_matches(
&data_md5sum,
data_sha256sum,
content_md5.as_deref(),
content_sha256,
)?;
match checksum_mode {
ChecksumMode::Verify(expected) => {
checksums.verify(&expected)?;
}
ChecksumMode::Calculate(algo) => {
meta.checksum = checksums.extract(algo);
}
};
let size = first_block.len() as u64;
check_quotas(ctx, size, existing_object.as_ref()).await?;
let etag = encryption.etag_from_md5(&data_md5sum);
let etag = encryption.etag_from_md5(&checksums.md5);
let inline_data = encryption.encrypt_blob(&first_block)?.to_vec();
let object_version = ObjectVersion {
@ -140,7 +154,7 @@ pub(crate) async fn save_stream<S: Stream<Item = Result<Bytes, Error>> + Unpin>(
timestamp: version_timestamp,
state: ObjectVersionState::Complete(ObjectVersionData::Inline(
ObjectVersionMeta {
encryption: object_encryption,
encryption: encryption.encrypt_meta(meta)?,
size,
etag: etag.clone(),
},
@ -175,7 +189,8 @@ pub(crate) async fn save_stream<S: Stream<Item = Result<Bytes, Error>> + Unpin>(
uuid: version_uuid,
timestamp: version_timestamp,
state: ObjectVersionState::Uploading {
encryption: object_encryption.clone(),
encryption: encryption.encrypt_meta(meta.clone())?,
checksum_algorithm: None, // don't care; overwritten later
multipart: false,
},
};
@ -196,25 +211,37 @@ pub(crate) async fn save_stream<S: Stream<Item = Result<Bytes, Error>> + Unpin>(
);
garage.version_table.insert(&version).await?;
// Transfer data and verify checksum
let (total_size, data_md5sum, data_sha256sum, first_block_hash) =
read_and_put_blocks(ctx, &version, encryption, 1, first_block, &mut chunker).await?;
// Transfer data
let (total_size, checksums, first_block_hash) = read_and_put_blocks(
ctx,
&version,
encryption,
1,
first_block,
&mut chunker,
checksummer,
)
.await?;
ensure_checksum_matches(
&data_md5sum,
data_sha256sum,
content_md5.as_deref(),
content_sha256,
)?;
// Verify checksums are ok / add calculated checksum to metadata
match checksum_mode {
ChecksumMode::Verify(expected) => {
checksums.verify(&expected)?;
}
ChecksumMode::Calculate(algo) => {
meta.checksum = checksums.extract(algo);
}
};
// Verify quotas are respsected
check_quotas(ctx, total_size, existing_object.as_ref()).await?;
// Save final object state, marked as Complete
let etag = encryption.etag_from_md5(&data_md5sum);
let etag = encryption.etag_from_md5(&checksums.md5);
object_version.state = ObjectVersionState::Complete(ObjectVersionData::FirstBlock(
ObjectVersionMeta {
encryption: object_encryption,
encryption: encryption.encrypt_meta(meta)?,
size: total_size,
etag: etag.clone(),
},
@ -234,33 +261,6 @@ pub(crate) async fn save_stream<S: Stream<Item = Result<Bytes, Error>> + Unpin>(
})
}
/// Validate MD5 sum against content-md5 header
/// and sha256sum against signed content-sha256
pub(crate) fn ensure_checksum_matches(
data_md5sum: &[u8],
data_sha256sum: garage_util::data::FixedBytes32,
content_md5: Option<&str>,
content_sha256: Option<garage_util::data::FixedBytes32>,
) -> Result<(), Error> {
if let Some(expected_sha256) = content_sha256 {
if expected_sha256 != data_sha256sum {
return Err(Error::bad_request(
"Unable to validate x-amz-content-sha256",
));
} else {
trace!("Successfully validated x-amz-content-sha256");
}
}
if let Some(expected_md5) = content_md5 {
if expected_md5.trim_matches('"') != BASE64_STANDARD.encode(data_md5sum) {
return Err(Error::bad_request("Unable to validate content-md5"));
} else {
trace!("Successfully validated content-md5");
}
}
Ok(())
}
/// Check that inserting this object with this size doesn't exceed bucket quotas
pub(crate) async fn check_quotas(
ctx: &ReqCtx,
@ -332,7 +332,8 @@ pub(crate) async fn read_and_put_blocks<S: Stream<Item = Result<Bytes, Error>> +
part_number: u64,
first_block: Bytes,
chunker: &mut StreamChunker<S>,
) -> Result<(u64, GenericArray<u8, typenum::U16>, Hash, Hash), Error> {
checksummer: Checksummer,
) -> Result<(u64, Checksums, Hash), Error> {
let tracer = opentelemetry::global::tracer("garage");
let (block_tx, mut block_rx) = mpsc::channel::<Result<Bytes, Error>>(2);
@ -360,20 +361,20 @@ pub(crate) async fn read_and_put_blocks<S: Stream<Item = Result<Bytes, Error>> +
let (block_tx2, mut block_rx2) = mpsc::channel::<Result<Bytes, Error>>(1);
let hash_stream = async {
let md5hasher = AsyncHasher::<Md5>::new();
let sha256hasher = AsyncHasher::<Sha256>::new();
let mut checksummer = checksummer;
while let Some(next) = block_rx.recv().await {
match next {
Ok(block) => {
block_tx2.send(Ok(block.clone())).await?;
futures::future::join(
md5hasher.update(block.clone()),
sha256hasher.update(block.clone()),
)
checksummer = tokio::task::spawn_blocking(move || {
checksummer.update(&block);
checksummer
})
.with_context(Context::current_with_span(
tracer.start("Hash block (md5, sha256)"),
))
.await;
.await
.unwrap()
}
Err(e) => {
block_tx2.send(Err(e)).await?;
@ -382,10 +383,7 @@ pub(crate) async fn read_and_put_blocks<S: Stream<Item = Result<Bytes, Error>> +
}
}
drop(block_tx2);
Ok::<_, mpsc::error::SendError<_>>(futures::join!(
md5hasher.finalize(),
sha256hasher.finalize()
))
Ok::<_, mpsc::error::SendError<_>>(checksummer)
};
let (block_tx3, mut block_rx3) = mpsc::channel::<Result<(Bytes, u64, Hash), Error>>(1);
@ -395,33 +393,28 @@ pub(crate) async fn read_and_put_blocks<S: Stream<Item = Result<Bytes, Error>> +
match next {
Ok(block) => {
let unencrypted_len = block.len() as u64;
let block = if encryption.is_encrypted() {
let res =
tokio::task::spawn_blocking(move || encryption.encrypt_block(block))
let res = tokio::task::spawn_blocking(move || {
let block = encryption.encrypt_block(block)?;
let hash = blake2sum(&block);
Ok((block, hash))
})
.with_context(Context::current_with_span(
tracer.start("Encrypt block"),
tracer.start("Encrypt and hash (blake2) block"),
))
.await
.unwrap();
match res {
Ok(b) => b,
Ok((block, hash)) => {
if first_block_hash.is_none() {
first_block_hash = Some(hash);
}
block_tx3.send(Ok((block, unencrypted_len, hash))).await?;
}
Err(e) => {
block_tx3.send(Err(e)).await?;
break;
}
}
} else {
block
};
let hash = async_blake2sum(block.clone())
.with_context(Context::current_with_span(
tracer.start("Hash block (blake2)"),
))
.await;
if first_block_hash.is_none() {
first_block_hash = Some(hash);
}
block_tx3.send(Ok((block, unencrypted_len, hash))).await?;
}
Err(e) => {
block_tx3.send(Err(e)).await?;
@ -493,12 +486,10 @@ pub(crate) async fn read_and_put_blocks<S: Stream<Item = Result<Bytes, Error>> +
let total_size = final_result?;
// unwrap here is ok, because if hasher failed, it is because something failed
// later in the pipeline which already caused a return at the ? on previous line
let (data_md5sum, data_sha256sum) = stream_hash_result.unwrap();
let first_block_hash = block_hash_result.unwrap();
let checksums = stream_hash_result.unwrap().finalize();
let data_sha256sum = Hash::try_from(&data_sha256sum[..]).unwrap();
Ok((total_size, data_md5sum, data_sha256sum, first_block_hash))
Ok((total_size, checksums, first_block_hash))
}
async fn put_block_and_meta(
@ -609,7 +600,7 @@ impl Drop for InterruptedCleanup {
// ============ helpers ============
pub(crate) fn get_headers(headers: &HeaderMap<HeaderValue>) -> Result<ObjectVersionHeaders, Error> {
pub(crate) fn get_headers(headers: &HeaderMap<HeaderValue>) -> Result<HeaderList, Error> {
let mut ret = Vec::new();
// Preserve standard headers
@ -637,7 +628,7 @@ pub(crate) fn get_headers(headers: &HeaderMap<HeaderValue>) -> Result<ObjectVers
}
}
Ok(ObjectVersionHeaders(ret))
Ok(ret)
}
pub(crate) fn next_timestamp(existing_object: Option<&Object>) -> u64 {

33
src/api/s3/xml.rs
View file

@ -131,6 +131,14 @@ pub struct CompleteMultipartUploadResult {
pub key: Value,
#[serde(rename = "ETag")]
pub etag: Value,
#[serde(rename = "ChecksumCRC32")]
pub checksum_crc32: Option<Value>,
#[serde(rename = "ChecksumCRC32C")]
pub checksum_crc32c: Option<Value>,
#[serde(rename = "ChecksumSHA1")]
pub checksum_sha1: Option<Value>,
#[serde(rename = "ChecksumSHA256")]
pub checksum_sha256: Option<Value>,
}
#[derive(Debug, Serialize, PartialEq, Eq)]
@ -197,6 +205,14 @@ pub struct PartItem {
pub part_number: IntValue,
#[serde(rename = "Size")]
pub size: IntValue,
#[serde(rename = "ChecksumCRC32")]
pub checksum_crc32: Option<Value>,
#[serde(rename = "ChecksumCRC32C")]
pub checksum_crc32c: Option<Value>,
#[serde(rename = "ChecksumSHA1")]
pub checksum_sha1: Option<Value>,
#[serde(rename = "ChecksumSHA256")]
pub checksum_sha256: Option<Value>,
}
#[derive(Debug, Serialize, PartialEq, Eq)]
@ -500,6 +516,10 @@ mod tests {
bucket: Value("mybucket".to_string()),
key: Value("a/plop".to_string()),
etag: Value("\"3858f62230ac3c915f300c664312c11f-9\"".to_string()),
checksum_crc32: None,
checksum_crc32c: None,
checksum_sha1: Some(Value("ZJAnHyG8PeKz9tI8UTcHrJos39A=".into())),
checksum_sha256: None,
};
assert_eq!(
to_xml_with_header(&result)?,
@ -509,6 +529,7 @@ mod tests {
<Bucket>mybucket</Bucket>\
<Key>a/plop</Key>\
<ETag>&quot;3858f62230ac3c915f300c664312c11f-9&quot;</ETag>\
<ChecksumSHA1>ZJAnHyG8PeKz9tI8UTcHrJos39A=</ChecksumSHA1>\
</CompleteMultipartUploadResult>"
);
Ok(())
@ -780,12 +801,22 @@ mod tests {
last_modified: Value("2010-11-10T20:48:34.000Z".to_string()),
part_number: IntValue(2),
size: IntValue(10485760),
checksum_crc32: None,
checksum_crc32c: None,
checksum_sha256: Some(Value(
"5RQ3A5uk0w7ojNjvegohch4JRBBGN/cLhsNrPzfv/hA=".into(),
)),
checksum_sha1: None,
},
PartItem {
etag: Value("\"aaaa18db4cc2f85cedef654fccc4a4x8\"".to_string()),
last_modified: Value("2010-11-10T20:48:33.000Z".to_string()),
part_number: IntValue(3),
size: IntValue(10485760),
checksum_sha256: None,
checksum_crc32c: None,
checksum_crc32: Some(Value("ZJAnHyG8=".into())),
checksum_sha1: None,
},
],
initiator: Initiator {
@ -820,12 +851,14 @@ mod tests {
<LastModified>2010-11-10T20:48:34.000Z</LastModified>\
<PartNumber>2</PartNumber>\
<Size>10485760</Size>\
<ChecksumSHA256>5RQ3A5uk0w7ojNjvegohch4JRBBGN/cLhsNrPzfv/hA=</ChecksumSHA256>\
</Part>\
<Part>\
<ETag>&quot;aaaa18db4cc2f85cedef654fccc4a4x8&quot;</ETag>\
<LastModified>2010-11-10T20:48:33.000Z</LastModified>\
<PartNumber>3</PartNumber>\
<Size>10485760</Size>\
<ChecksumCRC32>ZJAnHyG8=</ChecksumCRC32>\
</Part>\
<Initiator>\
<DisplayName>umat-user-11116a31-17b5-4fb7-9df5-b288870f11xx</DisplayName>\

1
src/garage/Cargo.toml
View file

@ -42,6 +42,7 @@ tracing.workspace = true
tracing-subscriber.workspace = true
rand.workspace = true
async-trait.workspace = true
sha1.workspace = true
sodiumoxide.workspace = true
structopt.workspace = true
git-version.workspace = true

158
src/garage/tests/s3/multipart.rs
View file

@ -1,6 +1,7 @@
use crate::common;
use aws_sdk_s3::primitives::ByteStream;
use aws_sdk_s3::types::{CompletedMultipartUpload, CompletedPart};
use aws_sdk_s3::types::{ChecksumAlgorithm, CompletedMultipartUpload, CompletedPart};
use base64::prelude::*;
const SZ_5MB: usize = 5 * 1024 * 1024;
const SZ_10MB: usize = 10 * 1024 * 1024;
@ -189,6 +190,153 @@ async fn test_multipart_upload() {
}
}
#[tokio::test]
async fn test_multipart_with_checksum() {
let ctx = common::context();
let bucket = ctx.create_bucket("testmpu-cksum");
let u1 = vec![0x11; SZ_5MB];
let u2 = vec![0x22; SZ_5MB];
let u3 = vec![0x33; SZ_5MB];
let ck1 = calculate_sha1(&u1);
let ck2 = calculate_sha1(&u2);
let ck3 = calculate_sha1(&u3);
let up = ctx
.client
.create_multipart_upload()
.bucket(&bucket)
.checksum_algorithm(ChecksumAlgorithm::Sha1)
.key("a")
.send()
.await
.unwrap();
assert!(up.upload_id.is_some());
let uid = up.upload_id.as_ref().unwrap();
let p1 = ctx
.client
.upload_part()
.bucket(&bucket)
.key("a")
.upload_id(uid)
.part_number(1)
.checksum_sha1(&ck1)
.body(ByteStream::from(u1.clone()))
.send()
.await
.unwrap();
// wrong checksum value should return an error
let err1 = ctx
.client
.upload_part()
.bucket(&bucket)
.key("a")
.upload_id(uid)
.part_number(2)
.checksum_sha1(&ck1)
.body(ByteStream::from(u2.clone()))
.send()
.await;
assert!(err1.is_err());
let p2 = ctx
.client
.upload_part()
.bucket(&bucket)
.key("a")
.upload_id(uid)
.part_number(2)
.checksum_sha1(&ck2)
.body(ByteStream::from(u2))
.send()
.await
.unwrap();
let p3 = ctx
.client
.upload_part()
.bucket(&bucket)
.key("a")
.upload_id(uid)
.part_number(3)
.checksum_sha1(&ck3)
.body(ByteStream::from(u3.clone()))
.send()
.await
.unwrap();
{
let r = ctx
.client
.list_parts()
.bucket(&bucket)
.key("a")
.upload_id(uid)
.send()
.await
.unwrap();
let parts = r.parts.unwrap();
assert_eq!(parts.len(), 3);
assert!(parts[0].checksum_crc32.is_none());
assert!(parts[0].checksum_crc32_c.is_none());
assert!(parts[0].checksum_sha256.is_none());
assert_eq!(parts[0].checksum_sha1.as_deref().unwrap(), ck1);
assert_eq!(parts[1].checksum_sha1.as_deref().unwrap(), ck2);
assert_eq!(parts[2].checksum_sha1.as_deref().unwrap(), ck3);
}
let cmp = CompletedMultipartUpload::builder()
.parts(
CompletedPart::builder()
.part_number(1)
.checksum_sha1(&ck1)
.e_tag(p1.e_tag.unwrap())
.build(),
)
.parts(
CompletedPart::builder()
.part_number(2)
.checksum_sha1(&ck2)
.e_tag(p2.e_tag.unwrap())
.build(),
)
.parts(
CompletedPart::builder()
.part_number(3)
.checksum_sha1(&ck3)
.e_tag(p3.e_tag.unwrap())
.build(),
)
.build();
let expected_checksum = calculate_sha1(
&vec![
BASE64_STANDARD.decode(&ck1).unwrap(),
BASE64_STANDARD.decode(&ck2).unwrap(),
BASE64_STANDARD.decode(&ck3).unwrap(),
]
.concat(),
);
let res = ctx
.client
.complete_multipart_upload()
.bucket(&bucket)
.key("a")
.upload_id(uid)
.checksum_sha1(expected_checksum.clone())
.multipart_upload(cmp)
.send()
.await
.unwrap();
assert_eq!(res.checksum_sha1, Some(expected_checksum));
}
#[tokio::test]
async fn test_uploadlistpart() {
let ctx = common::context();
@ -624,3 +772,11 @@ async fn test_uploadpartcopy() {
assert_eq!(real_obj.len(), exp_obj.len());
assert_eq!(real_obj, exp_obj);
}
fn calculate_sha1(bytes: &[u8]) -> String {
use sha1::{Digest, Sha1};
let mut hasher = Sha1::new();
hasher.update(bytes);
BASE64_STANDARD.encode(&hasher.finalize()[..])
}

9
src/model/s3/mpu_table.rs
View file

@ -17,6 +17,7 @@ pub const PARTS: &str = "parts";
pub const BYTES: &str = "bytes";
mod v09 {
use crate::s3::object_table::ChecksumValue;
use garage_util::crdt;
use garage_util::data::Uuid;
use serde::{Deserialize, Serialize};
@ -61,6 +62,9 @@ mod v09 {
pub version: Uuid,
/// ETag of the content of this part (known only once done uploading)
pub etag: Option<String>,
/// Checksum requested by x-amz-checksum-algorithm
#[serde(default)]
pub checksum: Option<ChecksumValue>,
/// Size of this part (known only once done uploading)
pub size: Option<u64>,
}
@ -155,6 +159,11 @@ impl Crdt for MpuPart {
(Some(x), Some(y)) if x < y => other.size,
(x, _) => x,
};
self.checksum = match (self.checksum.take(), &other.checksum) {
(None, Some(_)) => other.checksum.clone(),
(Some(x), Some(y)) if x < *y => other.checksum.clone(),
(x, _) => x,
};
}
}

53
src/model/s3/object_table.rs
View file

@ -208,6 +208,8 @@ mod v010 {
Uploading {
/// Indicates whether this is a multipart upload
multipart: bool,
/// Checksum algorithm to use
checksum_algorithm: Option<ChecksumAlgorithm>,
/// Encryption params + headers to be included in the final object
encryption: ObjectVersionEncryption,
},
@ -247,10 +249,10 @@ mod v010 {
#[derive(PartialEq, Eq, PartialOrd, Ord, Clone, Debug, Serialize, Deserialize)]
pub enum ObjectVersionEncryption {
SseC {
/// Encrypted serialized ObjectVersionHeaders struct.
/// Encrypted serialized ObjectVersionInner struct.
/// This is never compressed, just encrypted using AES256-GCM.
#[serde(with = "serde_bytes")]
headers: Vec<u8>,
inner: Vec<u8>,
/// Whether data blocks are compressed in addition to being encrypted
/// (compression happens before encryption, whereas for non-encrypted
/// objects, compression is handled at the level of the block manager)
@ -258,13 +260,35 @@ mod v010 {
},
Plaintext {
/// Plain-text headers
headers: ObjectVersionHeaders,
inner: ObjectVersionMetaInner,
},
}
/// Vector of headers, as tuples of the format (header name, header value)
#[derive(PartialEq, Eq, PartialOrd, Ord, Clone, Debug, Serialize, Deserialize)]
pub struct ObjectVersionHeaders(pub Vec<(String, String)>);
pub struct ObjectVersionMetaInner {
pub headers: HeaderList,
pub checksum: Option<ChecksumValue>,
}
pub type HeaderList = Vec<(String, String)>;
#[derive(PartialEq, Eq, PartialOrd, Ord, Clone, Copy, Debug, Serialize, Deserialize)]
pub enum ChecksumAlgorithm {
Crc32,
Crc32c,
Sha1,
Sha256,
}
/// Checksum value for x-amz-checksum-algorithm
#[derive(PartialEq, Eq, PartialOrd, Ord, Clone, Copy, Debug, Serialize, Deserialize)]
pub enum ChecksumValue {
Crc32(#[serde(with = "serde_bytes")] [u8; 4]),
Crc32c(#[serde(with = "serde_bytes")] [u8; 4]),
Sha1(#[serde(with = "serde_bytes")] [u8; 20]),
Sha256(#[serde(with = "serde_bytes")] [u8; 32]),
}
impl garage_util::migrate::Migrate for Object {
const VERSION_MARKER: &'static [u8] = b"G010s3ob";
@ -288,6 +312,7 @@ mod v010 {
v09::ObjectVersionState::Uploading { multipart, headers } => {
ObjectVersionState::Uploading {
multipart,
checksum_algorithm: None,
encryption: migrate_headers(headers),
}
}
@ -331,15 +356,18 @@ mod v010 {
}
ObjectVersionEncryption::Plaintext {
headers: ObjectVersionHeaders(new_headers),
inner: ObjectVersionMetaInner {
headers: new_headers,
checksum: None,
},
}
}
// Since ObjectVersionHeaders can now be serialized independently, for the
// purpose of being encrypted, we need it to support migrations on its own
// as well.
impl garage_util::migrate::InitialFormat for ObjectVersionHeaders {
const VERSION_MARKER: &'static [u8] = b"G010s3oh";
impl garage_util::migrate::InitialFormat for ObjectVersionMetaInner {
const VERSION_MARKER: &'static [u8] = b"G010s3om";
}
}
@ -454,6 +482,17 @@ impl Entry<Uuid, String> for Object {
}
}
impl ChecksumValue {
pub fn algorithm(&self) -> ChecksumAlgorithm {
match self {
ChecksumValue::Crc32(_) => ChecksumAlgorithm::Crc32,
ChecksumValue::Crc32c(_) => ChecksumAlgorithm::Crc32c,
ChecksumValue::Sha1(_) => ChecksumAlgorithm::Sha1,
ChecksumValue::Sha256(_) => ChecksumAlgorithm::Sha256,
}
}
}
impl Crdt for Object {
fn merge(&mut self, other: &Self) {
// Merge versions from other into here

61
src/util/async_hash.rs
View file

@ -1,61 +0,0 @@
use bytes::Bytes;
use digest::Digest;
use tokio::sync::mpsc;
use tokio::task::JoinHandle;
use crate::data::*;
/// Compute the sha256 of a slice,
/// spawning on a tokio thread for CPU-intensive processing
/// The argument has to be an owned Bytes, as it is moved out to a new thread.
pub async fn async_sha256sum(data: Bytes) -> Hash {
tokio::task::spawn_blocking(move || sha256sum(&data))
.await
.unwrap()
}
/// Compute the blake2sum of a slice,
/// spawning on a tokio thread for CPU-intensive processing.
/// The argument has to be an owned Bytes, as it is moved out to a new thread.
pub async fn async_blake2sum(data: Bytes) -> Hash {
tokio::task::spawn_blocking(move || blake2sum(&data))
.await
.unwrap()
}
// ----
pub struct AsyncHasher<D: Digest> {
sendblk: mpsc::Sender<Bytes>,
task: JoinHandle<digest::Output<D>>,
}
impl<D: Digest> AsyncHasher<D> {
pub fn new() -> Self {
let (sendblk, mut recvblk) = mpsc::channel::<Bytes>(1);
let task = tokio::task::spawn_blocking(move || {
let mut digest = D::new();
while let Some(blk) = recvblk.blocking_recv() {
digest.update(&blk[..]);
}
digest.finalize()
});
Self { sendblk, task }
}
pub async fn update(&self, b: Bytes) {
self.sendblk.send(b).await.unwrap();
}
pub async fn finalize(self) -> digest::Output<D> {
drop(self.sendblk);
self.task.await.unwrap()
}
}
impl<D: Digest> Default for AsyncHasher<D> {
fn default() -> Self {
Self::new()
}
}

1
src/util/lib.rs
View file

@ -3,7 +3,6 @@
#[macro_use]
extern crate tracing;
pub mod async_hash;
pub mod background;
pub mod config;
pub mod crdt;