garage_api(fixup): Fixups from reviews
This commit is contained in:
parent
f0cb931a45
commit
2b034b7c4e
GPG key ID:
09A5A2688F13FAC1
4 changed files with 260 additions and 231 deletions
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@ -80,11 +80,11 @@ pub async fn handle_delete_objects(
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req: Request<Body>,
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content_sha256: Option<Hash>,
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) -> Result<Response<Body>, Error> {
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let content_sha256 =
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content_sha256.ok_or_bad_request("Request content hash not signed, aborting.")?;
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let body = hyper::body::to_bytes(req.into_body()).await?;
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verify_signed_content(content_sha256, &body[..])?;
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if let Some(content_sha256) = content_sha256 {
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verify_signed_content(content_sha256, &body[..])?;
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}
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let cmd_xml = roxmltree::Document::parse(std::str::from_utf8(&body)?)?;
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let cmd = parse_delete_objects_xml(&cmd_xml).ok_or_bad_request("Invalid delete XML query")?;
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@ -1,9 +1,7 @@
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use std::collections::{BTreeMap, VecDeque};
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use std::pin::Pin;
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use std::sync::Arc;
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use chrono::{DateTime, NaiveDateTime, Utc};
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use futures::task;
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use futures::{prelude::*, TryFutureExt};
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use hyper::body::{Body, Bytes};
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use hyper::{Request, Response};
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@ -24,8 +22,9 @@ use garage_model::version_table::*;
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use crate::error::*;
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use crate::s3_xml;
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use crate::signature::streaming::SignedPayloadStream;
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use crate::signature::verify_signed_content;
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use crate::signature::LONG_DATETIME;
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use crate::signature::{streaming::check_streaming_payload_signature, verify_signed_content};
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pub async fn handle_put(
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garage: Arc<Garage>,
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@ -59,6 +58,7 @@ pub async fn handle_put(
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// Parse body of uploaded file
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let (head, body) = req.into_parts();
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let body = body.map_err(Error::from);
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let body = if let Some(signature) = payload_seed_signature {
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let secret_key = &api_key
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@ -76,11 +76,11 @@ pub async fn handle_put(
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NaiveDateTime::parse_from_str(date, LONG_DATETIME).ok_or_bad_request("Invalid date")?;
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let date: DateTime<Utc> = DateTime::from_utc(date, Utc);
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SignedPayloadChunker::new(body, garage.clone(), date, secret_key, signature)
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SignedPayloadStream::new(body, garage.clone(), date, secret_key, signature)?
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.map_err(Error::from)
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.boxed()
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} else {
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body.map_err(Error::from).boxed()
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body.boxed()
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};
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let mut chunker = StreamChunker::new(body, garage.config.block_size);
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@ -217,13 +217,13 @@ fn ensure_checksum_matches(
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Ok(())
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}
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async fn read_and_put_blocks<E: Into<Error>, S: Stream<Item = Result<Bytes, E>> + Unpin>(
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async fn read_and_put_blocks<S: Stream<Item = Result<Bytes, Error>> + Unpin>(
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garage: &Garage,
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version: &Version,
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part_number: u64,
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first_block: Vec<u8>,
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first_block_hash: Hash,
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chunker: &mut StreamChunker<S, E>,
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chunker: &mut StreamChunker<S>,
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) -> Result<(u64, GenericArray<u8, typenum::U16>, Hash), Error> {
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let mut md5hasher = Md5::new();
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let mut sha256hasher = Sha256::new();
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@ -245,9 +245,9 @@ async fn read_and_put_blocks<E: Into<Error>, S: Stream<Item = Result<Bytes, E>>
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loop {
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let (_, _, next_block) = futures::try_join!(
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put_curr_block.map_err(Into::into),
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put_curr_version_block.map_err(Into::into),
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chunker.next().map_err(Into::into)
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put_curr_block.map_err(Error::from),
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put_curr_version_block.map_err(Error::from),
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chunker.next(),
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)?;
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if let Some(block) = next_block {
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md5hasher.update(&block[..]);
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@ -308,214 +308,14 @@ async fn put_block_meta(
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Ok(())
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}
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mod payload {
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use std::fmt;
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pub struct Header {
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pub size: usize,
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pub signature: Box<[u8]>,
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}
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impl Header {
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pub fn parse(input: &[u8]) -> nom::IResult<&[u8], Self> {
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use nom::bytes::streaming::tag;
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use nom::character::streaming::hex_digit1;
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use nom::combinator::map_res;
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use nom::number::streaming::hex_u32;
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let (input, size) = hex_u32(input)?;
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let (input, _) = tag(";")(input)?;
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let (input, _) = tag("chunk-signature=")(input)?;
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let (input, data) = map_res(hex_digit1, hex::decode)(input)?;
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let (input, _) = tag("\r\n")(input)?;
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let header = Header {
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size: size as usize,
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signature: data.into_boxed_slice(),
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};
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Ok((input, header))
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}
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}
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impl fmt::Debug for Header {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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f.debug_struct("Header")
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.field("size", &self.size)
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.field("signature", &hex::encode(&self.signature))
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.finish()
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}
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}
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}
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enum SignedPayloadChunkerError<StreamE> {
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Stream(StreamE),
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InvalidSignature,
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Message(String),
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}
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impl<StreamE> SignedPayloadChunkerError<StreamE> {
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fn message(msg: &str) -> Self {
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SignedPayloadChunkerError::Message(msg.into())
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}
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}
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impl<StreamE> From<SignedPayloadChunkerError<StreamE>> for Error
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where
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StreamE: Into<Error>,
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{
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fn from(err: SignedPayloadChunkerError<StreamE>) -> Self {
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match err {
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SignedPayloadChunkerError::Stream(e) => e.into(),
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SignedPayloadChunkerError::InvalidSignature => {
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Error::BadRequest("Invalid payload signature".into())
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}
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SignedPayloadChunkerError::Message(e) => {
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Error::BadRequest(format!("Chunk format error: {}", e))
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}
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}
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}
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}
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impl<E, I> From<nom::error::Error<I>> for SignedPayloadChunkerError<E> {
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fn from(err: nom::error::Error<I>) -> Self {
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Self::message(err.code.description())
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}
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}
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#[pin_project::pin_project]
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struct SignedPayloadChunker<S, E>
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where
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S: Stream<Item = Result<Bytes, E>>,
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{
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#[pin]
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stream: S,
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buf: bytes::BytesMut,
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garage: Arc<Garage>,
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datetime: DateTime<Utc>,
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secret_key: String,
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previous_signature: Hash,
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}
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impl<S, E> SignedPayloadChunker<S, E>
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where
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S: Stream<Item = Result<Bytes, E>>,
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{
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fn new(
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stream: S,
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garage: Arc<Garage>,
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datetime: DateTime<Utc>,
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secret_key: &str,
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seed_signature: Hash,
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) -> Self {
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Self {
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stream,
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buf: bytes::BytesMut::new(),
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garage,
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datetime,
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secret_key: secret_key.into(),
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previous_signature: seed_signature,
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}
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}
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}
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impl<S, E> Stream for SignedPayloadChunker<S, E>
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where
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S: Stream<Item = Result<Bytes, E>> + Unpin,
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{
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type Item = Result<Bytes, SignedPayloadChunkerError<E>>;
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fn poll_next(
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self: Pin<&mut Self>,
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cx: &mut task::Context<'_>,
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) -> task::Poll<Option<Self::Item>> {
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use std::task::Poll;
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use nom::bytes::streaming::{tag, take};
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let mut this = self.project();
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macro_rules! try_parse {
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($expr:expr) => {
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match $expr {
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Ok(value) => Ok(value),
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Err(nom::Err::Incomplete(_)) => continue,
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Err(nom::Err::Error(e @ nom::error::Error { .. }))
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| Err(nom::Err::Failure(e)) => Err(e),
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}?
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};
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}
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loop {
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match futures::ready!(this.stream.as_mut().poll_next(cx)) {
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Some(Ok(bytes)) => {
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this.buf.extend(bytes);
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}
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Some(Err(e)) => {
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return Poll::Ready(Some(Err(SignedPayloadChunkerError::Stream(e))))
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}
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None => {
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if this.buf.is_empty() {
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return Poll::Ready(None);
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}
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}
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}
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let input: &[u8] = this.buf;
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let (input, header) = try_parse!(payload::Header::parse(input));
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let signature = Hash::try_from(&*header.signature)
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.ok_or_else(|| SignedPayloadChunkerError::message("Invalid signature"))?;
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// 0-sized chunk is the last
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if header.size == 0 {
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this.buf.clear();
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return Poll::Ready(None);
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}
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let (input, data) = try_parse!(take(header.size)(input));
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let (input, _) = try_parse!(tag("\r\n")(input));
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let data = Bytes::from(data.to_vec());
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let data_sha256sum = sha256sum(&data);
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let expected_signature = check_streaming_payload_signature(
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this.garage,
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this.secret_key,
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*this.datetime,
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*this.previous_signature,
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data_sha256sum,
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)
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.map_err(|e| {
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SignedPayloadChunkerError::Message(format!("Could not build signature: {}", e))
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})?;
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if signature != expected_signature {
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return Poll::Ready(Some(Err(SignedPayloadChunkerError::InvalidSignature)));
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}
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*this.buf = input.into();
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*this.previous_signature = signature;
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return Poll::Ready(Some(Ok(data)));
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}
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}
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fn size_hint(&self) -> (usize, Option<usize>) {
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self.stream.size_hint()
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}
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}
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struct StreamChunker<S: Stream<Item = Result<Bytes, E>>, E> {
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struct StreamChunker<S: Stream<Item = Result<Bytes, Error>>> {
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stream: S,
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read_all: bool,
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block_size: usize,
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buf: VecDeque<u8>,
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}
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impl<S: Stream<Item = Result<Bytes, E>> + Unpin, E> StreamChunker<S, E> {
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impl<S: Stream<Item = Result<Bytes, Error>> + Unpin> StreamChunker<S> {
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fn new(stream: S, block_size: usize) -> Self {
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Self {
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stream,
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@ -525,7 +325,7 @@ impl<S: Stream<Item = Result<Bytes, E>> + Unpin, E> StreamChunker<S, E> {
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}
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}
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async fn next(&mut self) -> Result<Option<Vec<u8>>, E> {
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async fn next(&mut self) -> Result<Option<Vec<u8>>, Error> {
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while !self.read_all && self.buf.len() < self.block_size {
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if let Some(block) = self.stream.next().await {
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let bytes = block?;
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@ -612,12 +412,20 @@ pub async fn handle_put_part(
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// Read first chuck, and at the same time try to get object to see if it exists
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let key = key.to_string();
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let mut chunker = StreamChunker::new(req.into_body(), garage.config.block_size);
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let body = req.into_body().map_err(Error::from);
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let mut chunker = StreamChunker::new(body, garage.config.block_size);
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let (object, version, first_block) = futures::try_join!(
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garage.object_table.get(&bucket_id, &key),
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garage.version_table.get(&version_uuid, &EmptyKey),
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chunker.next().map_err(GarageError::from),
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garage
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.object_table
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.get(&bucket_id, &key)
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.map_err(Error::from),
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garage
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.version_table
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.get(&version_uuid, &EmptyKey)
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.map_err(Error::from),
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chunker.next(),
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)?;
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// Check object is valid and multipart block can be accepted
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@ -43,11 +43,11 @@ pub async fn handle_put_website(
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req: Request<Body>,
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content_sha256: Option<Hash>,
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) -> Result<Response<Body>, Error> {
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let content_sha256 =
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content_sha256.ok_or_bad_request("Request content hash not signed, aborting.")?;
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let body = hyper::body::to_bytes(req.into_body()).await?;
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verify_signed_content(content_sha256, &body[..])?;
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if let Some(content_sha256) = content_sha256 {
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verify_signed_content(content_sha256, &body[..])?;
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}
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let mut bucket = garage
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.bucket_table
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@ -1,10 +1,17 @@
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use std::pin::Pin;
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use std::sync::Arc;
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use chrono::{DateTime, Utc};
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use futures::prelude::*;
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use futures::task;
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use hyper::body::Bytes;
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use garage_model::garage::Garage;
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use garage_util::data::Hash;
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use hmac::Mac;
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use super::signing_hmac;
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use super::sha256sum;
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use super::HmacSha256;
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use super::{LONG_DATETIME, SHORT_DATE};
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use crate::error::*;
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@ -13,9 +20,9 @@ use crate::error::*;
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const EMPTY_STRING_HEX_DIGEST: &str =
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"e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855";
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pub fn check_streaming_payload_signature(
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fn compute_streaming_payload_signature(
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garage: &Garage,
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secret_key: &str,
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signing_hmac: &HmacSha256,
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date: DateTime<Utc>,
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previous_signature: Hash,
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content_sha256: Hash,
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@ -36,9 +43,223 @@ pub fn check_streaming_payload_signature(
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]
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.join("\n");
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let mut hmac = signing_hmac(&date, secret_key, &garage.config.s3_api.s3_region, "s3")
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.ok_or_internal_error("Unable to build signing HMAC")?;
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let mut hmac = signing_hmac.clone();
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hmac.update(string_to_sign.as_bytes());
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Hash::try_from(&hmac.finalize().into_bytes()).ok_or_bad_request("Invalid signature")
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Hash::try_from(&hmac.finalize().into_bytes()).ok_or_internal_error("Invalid signature")
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}
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mod payload {
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use garage_util::data::Hash;
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pub enum Error<I> {
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Parser(nom::error::Error<I>),
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BadSignature,
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}
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impl<I> Error<I> {
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pub fn description(&self) -> &str {
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match *self {
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Error::Parser(ref e) => e.code.description(),
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Error::BadSignature => "Bad signature",
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}
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}
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}
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#[derive(Debug, Clone)]
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pub struct Header {
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pub size: usize,
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pub signature: Hash,
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}
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impl Header {
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pub fn parse(input: &[u8]) -> nom::IResult<&[u8], Self, Error<&[u8]>> {
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use nom::bytes::streaming::tag;
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use nom::character::streaming::hex_digit1;
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use nom::combinator::map_res;
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use nom::number::streaming::hex_u32;
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macro_rules! try_parse {
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($expr:expr) => {
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$expr.map_err(|e| e.map(Error::Parser))?
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};
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}
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let (input, size) = try_parse!(hex_u32(input));
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let (input, _) = try_parse!(tag(";")(input));
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let (input, _) = try_parse!(tag("chunk-signature=")(input));
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let (input, data) = try_parse!(map_res(hex_digit1, hex::decode)(input));
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let signature = Hash::try_from(&data).ok_or(nom::Err::Failure(Error::BadSignature))?;
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let (input, _) = try_parse!(tag("\r\n")(input));
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let header = Header {
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size: size as usize,
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signature,
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};
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Ok((input, header))
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}
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}
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}
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pub enum SignedPayloadStreamError {
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Stream(Error),
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InvalidSignature,
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Message(String),
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}
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impl SignedPayloadStreamError {
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fn message(msg: &str) -> Self {
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SignedPayloadStreamError::Message(msg.into())
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}
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}
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impl From<SignedPayloadStreamError> for Error {
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fn from(err: SignedPayloadStreamError) -> Self {
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match err {
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||||
SignedPayloadStreamError::Stream(e) => e,
|
||||
SignedPayloadStreamError::InvalidSignature => {
|
||||
Error::BadRequest("Invalid payload signature".into())
|
||||
}
|
||||
SignedPayloadStreamError::Message(e) => {
|
||||
Error::BadRequest(format!("Chunk format error: {}", e))
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<I> From<payload::Error<I>> for SignedPayloadStreamError {
|
||||
fn from(err: payload::Error<I>) -> Self {
|
||||
Self::message(err.description())
|
||||
}
|
||||
}
|
||||
|
||||
impl<I> From<nom::error::Error<I>> for SignedPayloadStreamError {
|
||||
fn from(err: nom::error::Error<I>) -> Self {
|
||||
Self::message(err.code.description())
|
||||
}
|
||||
}
|
||||
|
||||
#[pin_project::pin_project]
|
||||
pub struct SignedPayloadStream<S>
|
||||
where
|
||||
S: Stream<Item = Result<Bytes, Error>>,
|
||||
{
|
||||
#[pin]
|
||||
stream: S,
|
||||
buf: bytes::BytesMut,
|
||||
garage: Arc<Garage>,
|
||||
datetime: DateTime<Utc>,
|
||||
signing_hmac: HmacSha256,
|
||||
previous_signature: Hash,
|
||||
}
|
||||
|
||||
impl<S> SignedPayloadStream<S>
|
||||
where
|
||||
S: Stream<Item = Result<Bytes, Error>>,
|
||||
{
|
||||
pub fn new(
|
||||
stream: S,
|
||||
garage: Arc<Garage>,
|
||||
datetime: DateTime<Utc>,
|
||||
secret_key: &str,
|
||||
seed_signature: Hash,
|
||||
) -> Result<Self, Error> {
|
||||
let signing_hmac =
|
||||
super::signing_hmac(&datetime, secret_key, &garage.config.s3_api.s3_region, "s3")
|
||||
.ok_or_internal_error("Could not compute signing HMAC")?;
|
||||
|
||||
Ok(Self {
|
||||
stream,
|
||||
buf: bytes::BytesMut::new(),
|
||||
garage,
|
||||
datetime,
|
||||
signing_hmac,
|
||||
previous_signature: seed_signature,
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
impl<S> Stream for SignedPayloadStream<S>
|
||||
where
|
||||
S: Stream<Item = Result<Bytes, Error>> + Unpin,
|
||||
{
|
||||
type Item = Result<Bytes, SignedPayloadStreamError>;
|
||||
|
||||
fn poll_next(
|
||||
self: Pin<&mut Self>,
|
||||
cx: &mut task::Context<'_>,
|
||||
) -> task::Poll<Option<Self::Item>> {
|
||||
use std::task::Poll;
|
||||
|
||||
use nom::bytes::streaming::{tag, take};
|
||||
|
||||
let mut this = self.project();
|
||||
|
||||
macro_rules! try_parse {
|
||||
($expr:expr) => {
|
||||
match $expr {
|
||||
Ok(value) => Ok(value),
|
||||
Err(nom::Err::Incomplete(_)) => continue,
|
||||
Err(nom::Err::Error(e)) | Err(nom::Err::Failure(e)) => Err(e),
|
||||
}?
|
||||
};
|
||||
}
|
||||
|
||||
loop {
|
||||
match futures::ready!(this.stream.as_mut().poll_next(cx)) {
|
||||
Some(Ok(bytes)) => {
|
||||
this.buf.extend(bytes);
|
||||
}
|
||||
Some(Err(e)) => return Poll::Ready(Some(Err(SignedPayloadStreamError::Stream(e)))),
|
||||
None => {
|
||||
if this.buf.is_empty() {
|
||||
return Poll::Ready(None);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
let input: &[u8] = this.buf;
|
||||
|
||||
let (input, header) = try_parse!(payload::Header::parse(input));
|
||||
|
||||
// 0-sized chunk is the last
|
||||
if header.size == 0 {
|
||||
this.buf.clear();
|
||||
return Poll::Ready(None);
|
||||
}
|
||||
|
||||
let (input, data) = try_parse!(take::<_, _, nom::error::Error<_>>(header.size)(input));
|
||||
let (input, _) = try_parse!(tag::<_, _, nom::error::Error<_>>("\r\n")(input));
|
||||
|
||||
let data = Bytes::from(data.to_vec());
|
||||
let data_sha256sum = sha256sum(&data);
|
||||
|
||||
let expected_signature = compute_streaming_payload_signature(
|
||||
this.garage,
|
||||
this.signing_hmac,
|
||||
*this.datetime,
|
||||
*this.previous_signature,
|
||||
data_sha256sum,
|
||||
)
|
||||
.map_err(|e| {
|
||||
SignedPayloadStreamError::Message(format!("Could not build signature: {}", e))
|
||||
})?;
|
||||
|
||||
if header.signature != expected_signature {
|
||||
return Poll::Ready(Some(Err(SignedPayloadStreamError::InvalidSignature)));
|
||||
}
|
||||
|
||||
*this.buf = input.into();
|
||||
*this.previous_signature = header.signature;
|
||||
|
||||
return Poll::Ready(Some(Ok(data)));
|
||||
}
|
||||
}
|
||||
|
||||
fn size_hint(&self) -> (usize, Option<usize>) {
|
||||
self.stream.size_hint()
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue