Merge branch 'master' into doc/model

This commit is contained in:
Alex 2020-12-12 16:05:28 +01:00
commit 0b3084ca5f
31 changed files with 2748 additions and 61 deletions

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Cargo.lock generated
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@ -461,6 +461,7 @@ dependencies = [
"log", "log",
"md-5", "md-5",
"percent-encoding", "percent-encoding",
"rand",
"roxmltree", "roxmltree",
"sha2", "sha2",
"tokio", "tokio",

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@ -20,17 +20,24 @@ Our main use case is to provide a distributed storage layer for small-scale self
We propose the following quickstart to setup a full dev. environment as quickly as possible: We propose the following quickstart to setup a full dev. environment as quickly as possible:
1. Setup a rust/cargo environment and install s3cmd. eg. `dnf install rust cargo s3cmd` 1. Setup a rust/cargo environment. eg. `dnf install rust cargo`
2. Run `cargo build` to build the project 2. Install awscli v2 by following the guide [here](https://docs.aws.amazon.com/cli/latest/userguide/install-cliv2.html).
3. Run `./script/dev-cluster.sh` to launch a test cluster (feel free to read the script) 3. Run `cargo build` to build the project
4. Run `./script/dev-configure.sh` to configure your test cluster with default values (same datacenter, 100 tokens) 4. Run `./script/dev-cluster.sh` to launch a test cluster (feel free to read the script)
5. Run `./script/dev-bucket.sh` to create a bucket named `éprouvette` and an API key that will be stored in `/tmp/garage.s3` 5. Run `./script/dev-configure.sh` to configure your test cluster with default values (same datacenter, 100 tokens)
6. Run `source ./script/dev-env.sh` to configure your CLI environment 6. Run `./script/dev-bucket.sh` to create a bucket named `eprouvette` and an API key that will be stored in `/tmp/garage.s3`
7. You can use `garage` to manage the cluster. Try `garage --help`. 7. Run `source ./script/dev-env-aws.sh` to configure your CLI environment
8. You can use `s3grg` to add, remove, and delete files. Try `s3grg --help`, `s3grg put /proc/cpuinfo s3://éprouvette/cpuinfo.txt`, `s3grg ls s3://éprouvette`. `s3grg` is a wrapper on `s3cmd` configured with the previously generated API key (the one in `/tmp/garage.s3`). 8. You can use `garage` to manage the cluster. Try `garage --help`.
9. You can use the `awsgrg` alias to add, remove, and delete files. Try `awsgrg help`, `awsgrg cp /proc/cpuinfo s3://eprouvette/cpuinfo.txt`, or `awsgrg ls s3://eprouvette`. `awsgrg` is a wrapper on the `aws s3` command pre-configured with the previously generated API key (the one in `/tmp/garage.s3`) and localhost as the endpoint.
Now you should be ready to start hacking on garage! Now you should be ready to start hacking on garage!
## S3 compatibility
Only a subset of S3 is supported: adding, listing, getting and deleting files in a bucket.
Bucket management, ACL and other advanced features are not (yet?) handled through the S3 API but through the `garage` CLI.
We primarily test `garage` against the `awscli` tool and `nextcloud`.
## Setting up Garage ## Setting up Garage
Use the `genkeys.sh` script to generate TLS keys for encrypting communications between Garage nodes. Use the `genkeys.sh` script to generate TLS keys for encrypting communications between Garage nodes.

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*
!img
!.gitignore
!*.svg
!*.png
!*.jpg
!*.tex
!Makefile
!.gitignore
!talk.pdf

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talk.pdf: talk.tex img/garage_distributed.pdf img/consistent_hashing_1.pdf img/consistent_hashing_2.pdf img/consistent_hashing_3.pdf img/consistent_hashing_4.pdf img/garage_tables.pdf
pdflatex talk.tex
img/%.pdf: img/%.svg
inkscape -D -z --file=$^ --export-pdf=$@

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doc/20201202_talk/talk.pdf Normal file

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247
doc/20201202_talk/talk.tex Normal file
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@ -0,0 +1,247 @@
%\nonstopmode
\documentclass[aspectratio=169]{beamer}
\usepackage[utf8]{inputenc}
% \usepackage[frenchb]{babel}
\usepackage{amsmath}
\usepackage{mathtools}
\usepackage{breqn}
\usepackage{multirow}
\usetheme{Luebeck}
\usepackage{graphicx}
%\useoutertheme[footline=authortitle,subsection=false]{miniframes}
\beamertemplatenavigationsymbolsempty
\setbeamertemplate{footline}
{%
\leavevmode%
\hbox{\begin{beamercolorbox}[wd=.15\paperwidth,ht=2.5ex,dp=1.125ex,leftskip=.3cm,rightskip=.3cm plus1fill]{author in head/foot}%
\usebeamerfont{author in head/foot} \insertframenumber{} / \inserttotalframenumber
\end{beamercolorbox}%
\begin{beamercolorbox}[wd=.2\paperwidth,ht=2.5ex,dp=1.125ex,leftskip=.3cm plus1fill,rightskip=.3cm]{author in head/foot}%
\usebeamerfont{author in head/foot}\insertshortauthor
\end{beamercolorbox}%
\begin{beamercolorbox}[wd=.65\paperwidth,ht=2.5ex,dp=1.125ex,leftskip=.3cm,rightskip=.3cm plus1fil]{title in head/foot}%
\usebeamerfont{title in head/foot}\insertshorttitle~--~\insertshortdate
\end{beamercolorbox}}%
\vskip0pt%
}
\usepackage{tabu}
\usepackage{multicol}
\usepackage{vwcol}
\usepackage{stmaryrd}
\usepackage{graphicx}
\usepackage[normalem]{ulem}
\title[Garage : jouer dans la cour des grands quand on est un hébergeur associatif]{Garage : jouer dans la cour des grands \\quand on est un hébergeur associatif}
\subtitle{(ou pourquoi on a décidé de réinventer la roue)}
\author[Q. Dufour \& A. Auvolat]{Quentin Dufour \& Alex Auvolat}
\date[02/12/2020]{Mercredi 2 décembre 2020}
\begin{document}
\begin{frame}
\titlepage
\end{frame}
\begin{frame}
\frametitle{La question qui tue}
\begin{center}
\includegraphics[scale=3]{img/sync.png} \\
\Huge Pourquoi vous n'hébergez pas vos fichiers chez vous ? \\
\end{center}
\end{frame}
\begin{frame}[t]
\frametitle{La cour des grands}
\begin{columns}[t]
\begin{column}{0.5\textwidth}
{\huge Le modèle du cloud...}
\begin{center}
\includegraphics[scale=0.08]{img/cloud.png}
\end{center}
+ \underline{intégrité} : plus de perte de données
+ \underline{disponibilité} : tout le temps accessible
+ \underline{service} : rien à gérer
\vspace{0.15cm}
\textbf{changement des comportements}
\end{column}
\pause
\begin{column}{0.5\textwidth}
{\huge ...et son prix}
\begin{center}
\includegraphics[scale=0.07]{img/dc.jpg}
\end{center}
- matériel couteux et polluant
- logiciels secrets
- gestion opaque
\vspace{0.2cm}
\textbf{prisonnier de l'écosystème}
\end{column}
\end{columns}
\end{frame}
\begin{frame}[t]
\frametitle{Garage l'imposteur}
\begin{columns}[t]
\begin{column}{0.5\textwidth}
{\huge Ressemble à du cloud...}
\begin{center}
\includegraphics[scale=0.5]{img/shh.jpg}
\end{center}
+ \underline{compatible} avec les apps existantes
+ \underline{fonctionne} avec le mobile
+ \underline{s'adapte} aux habitudes prises
\end{column}
\pause
\begin{column}{0.5\textwidth}
{\huge ...fait du P2P}
\begin{center}
\includegraphics[scale=1]{img/death.jpg}
\end{center}
\vspace{0.4cm}
+ \underline{contrôle} de l'infrastructure
+ \underline{transparent} code libre
+ \underline{sobre} fonctionne avec de vieilles machines à la maison
\end{column}
\end{columns}
\end{frame}
\graphicspath{{img/}}
\begin{frame}
\frametitle{Mais donc, c'est quoi Garage ?}
\begin{columns}[t]
\begin{column}{0.5\textwidth}
\centering
\textbf{Un système de stockage distribué}
\vspace{1em}
\includegraphics[width=.7\columnwidth]{img/garage_distributed.pdf}
\end{column}
\pause
\begin{column}{0.5\textwidth}
\centering
\textbf{qui implémente l'API S3}
\vspace{2em}
\includegraphics[width=.7\columnwidth]{img/Amazon-S3.jpg}
\end{column}
\end{columns}
\end{frame}
\begin{frame}
\frametitle{Consistent Hashing (DynamoDB)}
\textbf{Comment répartir les fichiers sur les différentes machines ?}
\vspace{1em}
\centering
\only<1>{\includegraphics[width=.55\columnwidth]{img/consistent_hashing_1.pdf}}%
\only<2>{\includegraphics[width=.55\columnwidth]{img/consistent_hashing_2.pdf}}%
\only<3>{\includegraphics[width=.55\columnwidth]{img/consistent_hashing_3.pdf}}%
\only<4>{\includegraphics[width=.55\columnwidth]{img/consistent_hashing_4.pdf}}%
\end{frame}
\begin{frame}
\frametitle{Garage Internals : 3 niveaux de consistent hashing}
\centering
\includegraphics[width=.85\columnwidth]{img/garage_tables.pdf}
\end{frame}
\begin{frame}
\frametitle{Modèles de cohérence}
Garage utilise un modèle de cohérence relativement faible :
\vspace{1em}
\begin{itemize}
\item Objets répliqués 3 fois, quorum de 2 pour les lectures et les écritures\\
$\to$ cohérence \textbf{``read your writes''}
\vspace{1em}
\item<2-> Types de donnée CRDT + mécanisme d'anti-entropie\\
$\to$ cohérence \textbf{à terme} (eventual consistency)
\vspace{1em}
\item<3-> Cela s'applique pour chaque fichier individuellement :\\
pas de linéarisabilté ou de cohérence causale entre les opérations\\
sur des fichiers différents
\vspace{1em}
\item<4-> \textbf{Avantage :} convient bien à un déploiement géodistribué (multi-datacenter)
\end{itemize}
\end{frame}
\begin{frame}
\frametitle{Rust : retour d'expérience}
\begin{columns}
\begin{column}{0.55\textwidth}
Garage est entièrement écrit en Rust !
\vspace{2em}
\textbf{Points forts :}
\vspace{.5em}
\begin{itemize}
\item Langage compilé, très rapide
\vspace{.5em}
\item Typage fort, beaucoup de sécurités
\vspace{.5em}
\item Le meilleur de plusieurs paradigmes:
fonctionnel, orienté objet, impératif
\vspace{.5em}
\item Un écosytème de librairies très complet:
serialisation, async/await, http, ...
\end{itemize}
\end{column}
\begin{column}{0.45\textwidth}
\begin{centering}
\hspace{2em}\includegraphics[width=0.55\columnwidth]{img/rustacean-flat-happy.png}
\end{centering}
\vspace{2em}
\textbf{Points faibles :}
\vspace{.5em}
\begin{itemize}
\item Les temps de compilation...
\vspace{.5em}
\item Compliqué à apprendre
\end{itemize}
\vspace{2em}
\end{column}
\end{columns}
\end{frame}
\end{document}
%% vim: set ts=4 sw=4 tw=0 noet spelllang=fr :

View file

@ -6,11 +6,11 @@ GARAGE_DEBUG="${REPO_FOLDER}/target/debug/"
GARAGE_RELEASE="${REPO_FOLDER}/target/release/" GARAGE_RELEASE="${REPO_FOLDER}/target/release/"
PATH="${GARAGE_DEBUG}:${GARAGE_RELEASE}:$PATH" PATH="${GARAGE_DEBUG}:${GARAGE_RELEASE}:$PATH"
garage bucket create éprouvette garage bucket create eprouvette
KEY_INFO=`garage key new --name opérateur` KEY_INFO=`garage key new --name opérateur`
ACCESS_KEY=`echo $KEY_INFO|grep -Po 'GK[a-f0-9]+'` ACCESS_KEY=`echo $KEY_INFO|grep -Po 'GK[a-f0-9]+'`
SECRET_KEY=`echo $KEY_INFO|grep -Po 'secret_key: "[a-f0-9]+'|grep -Po '[a-f0-9]+$'` SECRET_KEY=`echo $KEY_INFO|grep -Po 'secret_key: "[a-f0-9]+'|grep -Po '[a-f0-9]+$'`
garage bucket allow éprouvette --read --write --key $ACCESS_KEY garage bucket allow eprouvette --read --write --key $ACCESS_KEY
echo "$ACCESS_KEY $SECRET_KEY" > /tmp/garage.s3 echo "$ACCESS_KEY $SECRET_KEY" > /tmp/garage.s3
echo "Bucket s3://éprouvette created. Credentials stored in /tmp/garage.s3." echo "Bucket s3://eprouvette created. Credentials stored in /tmp/garage.s3."

7
script/dev-clean.sh Executable file
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@ -0,0 +1,7 @@
#!/bin/bash
set -ex
killall -9 garage || echo "garage is not running"
rm -rf /tmp/garage*
rm -rf /tmp/config.*.toml

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@ -24,11 +24,11 @@ cat > $CONF_PATH <<EOF
block_size = 1048576 # objects are split in blocks of maximum this number of bytes block_size = 1048576 # objects are split in blocks of maximum this number of bytes
metadata_dir = "/tmp/garage-meta-$count" metadata_dir = "/tmp/garage-meta-$count"
data_dir = "/tmp/garage-data-$count" data_dir = "/tmp/garage-data-$count"
rpc_bind_addr = "127.0.0.$count:3901" # the port other Garage nodes will use to talk to this node rpc_bind_addr = "[::]:$((3900+$count))" # the port other Garage nodes will use to talk to this node
bootstrap_peers = [ bootstrap_peers = [
"127.0.0.1:3901", "[::1]:3901",
"127.0.0.2:3901", "[::1]:3902",
"127.0.0.3:3901" "[::1]:3903"
] ]
max_concurrent_rpc_requests = 12 max_concurrent_rpc_requests = 12
data_replication_factor = 3 data_replication_factor = 3
@ -36,11 +36,11 @@ meta_replication_factor = 3
meta_epidemic_fanout = 3 meta_epidemic_fanout = 3
[s3_api] [s3_api]
api_bind_addr = "127.0.0.$count:3900" # the S3 API port, HTTP without TLS. Add a reverse proxy for the TLS part. api_bind_addr = "[::]:$((3910+$count))" # the S3 API port, HTTP without TLS. Add a reverse proxy for the TLS part.
s3_region = "garage" # set this to anything. S3 API calls will fail if they are not made against the region set here. s3_region = "garage" # set this to anything. S3 API calls will fail if they are not made against the region set here.
[s3_web] [s3_web]
bind_addr = "127.0.0.$count:3902" bind_addr = "[::]:$((3920+$count))"
EOF EOF
echo -en "$LABEL configuration written to $CONF_PATH\n" echo -en "$LABEL configuration written to $CONF_PATH\n"

View file

@ -6,6 +6,11 @@ GARAGE_DEBUG="${REPO_FOLDER}/target/debug/"
GARAGE_RELEASE="${REPO_FOLDER}/target/release/" GARAGE_RELEASE="${REPO_FOLDER}/target/release/"
PATH="${GARAGE_DEBUG}:${GARAGE_RELEASE}:$PATH" PATH="${GARAGE_DEBUG}:${GARAGE_RELEASE}:$PATH"
until garage status 2>&1|grep -q Healthy ; do
echo "cluster starting..."
sleep 1
done
garage status \ garage status \
| grep UNCONFIGURED \ | grep UNCONFIGURED \
| grep -Po '^[0-9a-f]+' \ | grep -Po '^[0-9a-f]+' \

14
script/dev-env-aws.sh Normal file
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@ -0,0 +1,14 @@
#!/bin/bash
SCRIPT_FOLDER="`dirname \"${BASH_SOURCE[0]}\"`"
REPO_FOLDER="${SCRIPT_FOLDER}/../"
GARAGE_DEBUG="${REPO_FOLDER}/target/debug/"
GARAGE_RELEASE="${REPO_FOLDER}/target/release/"
PATH="${GARAGE_DEBUG}:${GARAGE_RELEASE}:$PATH"
export AWS_ACCESS_KEY_ID=`cat /tmp/garage.s3 |cut -d' ' -f1`
export AWS_SECRET_ACCESS_KEY=`cat /tmp/garage.s3 |cut -d' ' -f2`
export AWS_DEFAULT_REGION='garage'
alias awsgrg="aws s3 \
--endpoint-url http://127.0.0.1:3911"

3
script/dev-env.sh → script/dev-env-s3cmd.sh Executable file → Normal file
View file

@ -10,7 +10,8 @@ ACCESS_KEY=`cat /tmp/garage.s3 |cut -d' ' -f1`
SECRET_KEY=`cat /tmp/garage.s3 |cut -d' ' -f2` SECRET_KEY=`cat /tmp/garage.s3 |cut -d' ' -f2`
alias s3grg="s3cmd \ alias s3grg="s3cmd \
--host 127.0.0.1:3900 \ --host 127.0.0.1:3911 \
--host-bucket 127.0.0.1:3911 \
--access_key=$ACCESS_KEY \ --access_key=$ACCESS_KEY \
--secret_key=$SECRET_KEY \ --secret_key=$SECRET_KEY \
--region=garage \ --region=garage \

62
script/test-smoke.sh Executable file
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@ -0,0 +1,62 @@
#!/bin/bash
set -ex
shopt -s expand_aliases
SCRIPT_FOLDER="`dirname \"$0\"`"
REPO_FOLDER="${SCRIPT_FOLDER}/../"
cargo build
${SCRIPT_FOLDER}/dev-clean.sh
${SCRIPT_FOLDER}/dev-cluster.sh > /tmp/garage.log 2>&1 &
${SCRIPT_FOLDER}/dev-configure.sh
${SCRIPT_FOLDER}/dev-bucket.sh
source ${SCRIPT_FOLDER}/dev-env-aws.sh
source ${SCRIPT_FOLDER}/dev-env-s3cmd.sh
garage status
garage key list
garage bucket list
dd if=/dev/urandom of=/tmp/garage.1.rnd bs=1k count=2 # < INLINE_THRESHOLD = 3072 bytes
dd if=/dev/urandom of=/tmp/garage.2.rnd bs=1M count=5
dd if=/dev/urandom of=/tmp/garage.3.rnd bs=1M count=10
for idx in $(seq 1 3); do
# AWS sends
awsgrg cp /tmp/garage.$idx.rnd s3://eprouvette/garage.$idx.aws
awsgrg ls s3://eprouvette
awsgrg cp s3://eprouvette/garage.$idx.aws /tmp/garage.$idx.dl
diff /tmp/garage.$idx.rnd /tmp/garage.$idx.dl
rm /tmp/garage.$idx.dl
s3grg get s3://eprouvette/garage.$idx.aws /tmp/garage.$idx.dl
diff /tmp/garage.$idx.rnd /tmp/garage.$idx.dl
rm /tmp/garage.$idx.dl
awsgrg rm s3://eprouvette/garage.$idx.aws
# S3CMD sends
s3grg put /tmp/garage.$idx.rnd s3://eprouvette/garage.$idx.s3cmd
s3grg ls s3://eprouvette
s3grg get s3://eprouvette/garage.$idx.s3cmd /tmp/garage.$idx.dl
diff /tmp/garage.$idx.rnd /tmp/garage.$idx.dl
rm /tmp/garage.$idx.dl
awsgrg cp s3://eprouvette/garage.$idx.s3cmd /tmp/garage.$idx.dl
diff /tmp/garage.$idx.rnd /tmp/garage.$idx.dl
rm /tmp/garage.$idx.dl
s3grg rm s3://eprouvette/garage.$idx.s3cmd
done
rm /tmp/garage.{1,2,3}.rnd
garage bucket deny --read --write eprouvette --key $AWS_ACCESS_KEY_ID
garage bucket delete --yes eprouvette
garage key delete --yes $AWS_ACCESS_KEY_ID
echo "success"

View file

@ -27,6 +27,7 @@ md-5 = "0.9.1"
sha2 = "0.8" sha2 = "0.8"
hmac = "0.7" hmac = "0.7"
crypto-mac = "0.7" crypto-mac = "0.7"
rand = "0.7"
futures = "0.3" futures = "0.3"
futures-util = "0.3" futures-util = "0.3"

View file

@ -24,11 +24,13 @@ fn object_headers(
"Content-Type", "Content-Type",
version_meta.headers.content_type.to_string(), version_meta.headers.content_type.to_string(),
) )
.header("Content-Length", format!("{}", version_meta.size))
.header("ETag", version_meta.etag.to_string())
.header("Last-Modified", date_str) .header("Last-Modified", date_str)
.header("Accept-Ranges", format!("bytes")); .header("Accept-Ranges", format!("bytes"));
if !version_meta.etag.is_empty() {
resp = resp.header("ETag", format!("\"{}\"", version_meta.etag));
}
for (k, v) in version_meta.headers.other.iter() { for (k, v) in version_meta.headers.other.iter() {
resp = resp.header(k, v.to_string()); resp = resp.header(k, v.to_string());
} }
@ -63,6 +65,7 @@ pub async fn handle_head(
let body: Body = Body::from(vec![]); let body: Body = Body::from(vec![]);
let response = object_headers(&version, version_meta) let response = object_headers(&version, version_meta)
.header("Content-Length", format!("{}", version_meta.size))
.status(StatusCode::OK) .status(StatusCode::OK)
.body(body) .body(body)
.unwrap(); .unwrap();
@ -123,7 +126,9 @@ pub async fn handle_get(
.await; .await;
} }
let resp_builder = object_headers(&last_v, last_v_meta).status(StatusCode::OK); let resp_builder = object_headers(&last_v, last_v_meta)
.header("Content-Length", format!("{}", last_v_meta.size))
.status(StatusCode::OK);
match &last_v_data { match &last_v_data {
ObjectVersionData::DeleteMarker => unreachable!(), ObjectVersionData::DeleteMarker => unreachable!(),
@ -161,7 +166,7 @@ pub async fn handle_get(
} }
}) })
.buffered(2); .buffered(2);
//let body: Body = Box::new(StreamBody::new(Box::pin(body_stream)));
let body = hyper::body::Body::wrap_stream(body_stream); let body = hyper::body::Body::wrap_stream(body_stream);
Ok(resp_builder.body(body)?) Ok(resp_builder.body(body)?)
} }
@ -181,9 +186,10 @@ pub async fn handle_get_range(
} }
let resp_builder = object_headers(version, version_meta) let resp_builder = object_headers(version, version_meta)
.header("Content-Length", format!("{}", end - begin))
.header( .header(
"Content-Range", "Content-Range",
format!("bytes {}-{}/{}", begin, end, version_meta.size), format!("bytes {}-{}/{}", begin, end - 1, version_meta.size),
) )
.status(StatusCode::PARTIAL_CONTENT); .status(StatusCode::PARTIAL_CONTENT);
@ -206,35 +212,49 @@ pub async fn handle_get_range(
None => return Err(Error::NotFound), None => return Err(Error::NotFound),
}; };
let blocks = version // We will store here the list of blocks that have an intersection with the requested
.blocks() // range, as well as their "true offset", which is their actual offset in the complete
.iter() // file (whereas block.offset designates the offset of the block WITHIN THE PART
.cloned() // block.part_number, which is not the same in the case of a multipart upload)
.filter(|block| block.offset + block.size > begin && block.offset < end) let mut blocks = Vec::with_capacity(std::cmp::min(
.collect::<Vec<_>>(); version.blocks().len(),
4 + ((end - begin) / std::cmp::max(version.blocks()[0].size as u64, 1024)) as usize,
));
let mut true_offset = 0;
for b in version.blocks().iter() {
if true_offset >= end {
break;
}
// Keep only blocks that have an intersection with the requested range
if true_offset < end && true_offset + b.size > begin {
blocks.push((b.clone(), true_offset));
}
true_offset += b.size;
}
let body_stream = futures::stream::iter(blocks) let body_stream = futures::stream::iter(blocks)
.map(move |block| { .map(move |(block, true_offset)| {
let garage = garage.clone(); let garage = garage.clone();
async move { async move {
let data = garage.block_manager.rpc_get_block(&block.hash).await?; let data = garage.block_manager.rpc_get_block(&block.hash).await?;
let start_in_block = if block.offset > begin { let data = Bytes::from(data);
let start_in_block = if true_offset > begin {
0 0
} else { } else {
begin - block.offset begin - true_offset
}; };
let end_in_block = if block.offset + block.size < end { let end_in_block = if true_offset + block.size < end {
block.size block.size
} else { } else {
end - block.offset end - true_offset
}; };
Result::<Bytes, Error>::Ok(Bytes::from( Result::<Bytes, Error>::Ok(Bytes::from(
data[start_in_block as usize..end_in_block as usize].to_vec(), data.slice(start_in_block as usize..end_in_block as usize),
)) ))
} }
}) })
.buffered(2); .buffered(2);
//let body: Body = Box::new(StreamBody::new(Box::pin(body_stream)));
let body = hyper::body::Body::wrap_stream(body_stream); let body = hyper::body::Body::wrap_stream(body_stream);
Ok(resp_builder.body(body)?) Ok(resp_builder.body(body)?)
} }

View file

@ -18,6 +18,7 @@ use crate::encoding::*;
struct ListResultInfo { struct ListResultInfo {
last_modified: u64, last_modified: u64,
size: u64, size: u64,
etag: String,
} }
pub async fn handle_list( pub async fn handle_list(
@ -56,12 +57,12 @@ pub async fn handle_list(
for object in objects.iter() { for object in objects.iter() {
if !object.key.starts_with(prefix) { if !object.key.starts_with(prefix) {
truncated = false; truncated = None;
break 'query_loop; break 'query_loop;
} }
if let Some(version) = object.versions().iter().find(|x| x.is_data()) { if let Some(version) = object.versions().iter().find(|x| x.is_data()) {
if result_keys.len() + result_common_prefixes.len() >= max_keys { if result_keys.len() + result_common_prefixes.len() >= max_keys {
truncated = true; truncated = Some(object.key.to_string());
break 'query_loop; break 'query_loop;
} }
let common_prefix = if delimiter.len() > 0 { let common_prefix = if delimiter.len() > 0 {
@ -75,19 +76,18 @@ pub async fn handle_list(
if let Some(pfx) = common_prefix { if let Some(pfx) = common_prefix {
result_common_prefixes.insert(pfx.to_string()); result_common_prefixes.insert(pfx.to_string());
} else { } else {
let size = match &version.state { let meta = match &version.state {
ObjectVersionState::Complete(ObjectVersionData::Inline(meta, _)) => { ObjectVersionState::Complete(ObjectVersionData::Inline(meta, _)) => meta,
meta.size
}
ObjectVersionState::Complete(ObjectVersionData::FirstBlock(meta, _)) => { ObjectVersionState::Complete(ObjectVersionData::FirstBlock(meta, _)) => {
meta.size meta
} }
_ => unreachable!(), _ => unreachable!(),
}; };
let info = match result_keys.get(&object.key) { let info = match result_keys.get(&object.key) {
None => ListResultInfo { None => ListResultInfo {
last_modified: version.timestamp, last_modified: version.timestamp,
size, size: meta.size,
etag: meta.etag.to_string(),
}, },
Some(_lri) => { Some(_lri) => {
return Err(Error::Message(format!("Duplicate key?? {}", object.key))) return Err(Error::Message(format!("Duplicate key?? {}", object.key)))
@ -98,7 +98,7 @@ pub async fn handle_list(
} }
} }
if objects.len() < max_keys + 1 { if objects.len() < max_keys + 1 {
truncated = false; truncated = None;
break 'query_loop; break 'query_loop;
} }
if objects.len() > 0 { if objects.len() > 0 {
@ -113,11 +113,22 @@ pub async fn handle_list(
r#"<ListBucketResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">"# r#"<ListBucketResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">"#
) )
.unwrap(); .unwrap();
writeln!(&mut xml, "\t<Bucket>{}</Bucket>", bucket).unwrap(); writeln!(&mut xml, "\t<Name>{}</Name>", bucket).unwrap();
writeln!(&mut xml, "\t<Prefix>{}</Prefix>", prefix).unwrap(); writeln!(&mut xml, "\t<Prefix>{}</Prefix>", prefix).unwrap();
if let Some(mkr) = marker {
writeln!(&mut xml, "\t<Marker>{}</Marker>", mkr).unwrap();
}
writeln!(&mut xml, "\t<KeyCount>{}</KeyCount>", result_keys.len()).unwrap(); writeln!(&mut xml, "\t<KeyCount>{}</KeyCount>", result_keys.len()).unwrap();
writeln!(&mut xml, "\t<MaxKeys>{}</MaxKeys>", max_keys).unwrap(); writeln!(&mut xml, "\t<MaxKeys>{}</MaxKeys>", max_keys).unwrap();
writeln!(&mut xml, "\t<IsTruncated>{}</IsTruncated>", truncated).unwrap(); writeln!(
&mut xml,
"\t<IsTruncated>{}</IsTruncated>",
truncated.is_some()
)
.unwrap();
if let Some(next_marker) = truncated {
writeln!(&mut xml, "\t<NextMarker>{}</NextMarker>", next_marker).unwrap();
}
for (key, info) in result_keys.iter() { for (key, info) in result_keys.iter() {
let last_modif = NaiveDateTime::from_timestamp(info.last_modified as i64 / 1000, 0); let last_modif = NaiveDateTime::from_timestamp(info.last_modified as i64 / 1000, 0);
let last_modif = DateTime::<Utc>::from_utc(last_modif, Utc); let last_modif = DateTime::<Utc>::from_utc(last_modif, Utc);
@ -132,6 +143,9 @@ pub async fn handle_list(
.unwrap(); .unwrap();
writeln!(&mut xml, "\t\t<LastModified>{}</LastModified>", last_modif).unwrap(); writeln!(&mut xml, "\t\t<LastModified>{}</LastModified>", last_modif).unwrap();
writeln!(&mut xml, "\t\t<Size>{}</Size>", info.size).unwrap(); writeln!(&mut xml, "\t\t<Size>{}</Size>", info.size).unwrap();
if !info.etag.is_empty() {
writeln!(&mut xml, "\t\t<ETag>\"{}\"</ETag>", info.etag).unwrap();
}
writeln!(&mut xml, "\t\t<StorageClass>STANDARD</StorageClass>").unwrap(); writeln!(&mut xml, "\t\t<StorageClass>STANDARD</StorageClass>").unwrap();
writeln!(&mut xml, "\t</Contents>").unwrap(); writeln!(&mut xml, "\t</Contents>").unwrap();
} }

View file

@ -51,12 +51,7 @@ pub async fn handle_put(
let md5sum_arr = md5sum.finalize(); let md5sum_arr = md5sum.finalize();
let md5sum_hex = hex::encode(md5sum_arr); let md5sum_hex = hex::encode(md5sum_arr);
let mut sha256sum = Sha256::new(); let sha256sum_hash = hash(&first_block[..]);
sha256sum.input(&first_block[..]);
let sha256sum_arr = sha256sum.result();
let mut hash = [0u8; 32];
hash.copy_from_slice(&sha256sum_arr[..]);
let sha256sum_hash = Hash::from(hash);
ensure_checksum_matches( ensure_checksum_matches(
md5sum_arr.as_slice(), md5sum_arr.as_slice(),
@ -253,7 +248,7 @@ impl BodyChunker {
body, body,
read_all: false, read_all: false,
block_size, block_size,
buf: VecDeque::new(), buf: VecDeque::with_capacity(2 * block_size),
} }
} }
async fn next(&mut self) -> Result<Option<Vec<u8>>, GarageError> { async fn next(&mut self) -> Result<Option<Vec<u8>>, GarageError> {
@ -278,11 +273,10 @@ impl BodyChunker {
} }
} }
pub fn put_response(version_uuid: UUID, etag: String) -> Response<Body> { pub fn put_response(version_uuid: UUID, md5sum_hex: String) -> Response<Body> {
Response::builder() Response::builder()
.header("x-amz-version-id", hex::encode(version_uuid)) .header("x-amz-version-id", hex::encode(version_uuid))
.header("ETag", etag) .header("ETag", format!("\"{}\"", md5sum_hex))
// TODO ETag
.body(Body::from(vec![])) .body(Body::from(vec![]))
.unwrap() .unwrap()
} }
@ -369,7 +363,7 @@ pub async fn handle_put_part(
} }
// Copy block to store // Copy block to store
let version = Version::new(version_uuid, bucket.into(), key.into(), false, vec![]); let version = Version::new(version_uuid, bucket, key, false, vec![]);
let first_block_hash = hash(&first_block[..]); let first_block_hash = hash(&first_block[..]);
let (_, md5sum_arr, sha256sum) = read_and_put_blocks( let (_, md5sum_arr, sha256sum) = read_and_put_blocks(
&garage, &garage,
@ -388,7 +382,11 @@ pub async fn handle_put_part(
content_sha256, content_sha256,
)?; )?;
Ok(Response::new(Body::from(vec![]))) let response = Response::builder()
.header("ETag", format!("\"{}\"", hex::encode(md5sum_arr)))
.body(Body::from(vec![]))
.unwrap();
Ok(response)
} }
pub async fn handle_complete_multipart_upload( pub async fn handle_complete_multipart_upload(
@ -430,6 +428,21 @@ pub async fn handle_complete_multipart_upload(
_ => unreachable!(), _ => unreachable!(),
}; };
// ETag calculation: we produce ETags that have the same form as
// those of S3 multipart uploads, but we don't use their actual
// calculation for the first part (we use random bytes). This
// shouldn't impact compatibility as the S3 docs specify that
// the ETag is an opaque value in case of a multipart upload.
// See also: https://teppen.io/2018/06/23/aws_s3_etags/
let num_parts = version.blocks().last().unwrap().part_number
- version.blocks().first().unwrap().part_number
+ 1;
let etag = format!(
"{}-{}",
hex::encode(&rand::random::<[u8; 16]>()[..]),
num_parts
);
// TODO: check that all the parts that they pretend they gave us are indeed there // TODO: check that all the parts that they pretend they gave us are indeed there
// TODO: when we read the XML from _req, remember to check the sha256 sum of the payload // TODO: when we read the XML from _req, remember to check the sha256 sum of the payload
// against the signed x-amz-content-sha256 // against the signed x-amz-content-sha256
@ -444,7 +457,7 @@ pub async fn handle_complete_multipart_upload(
ObjectVersionMeta { ObjectVersionMeta {
headers, headers,
size: total_size, size: total_size,
etag: "".to_string(), // TODO etag: etag,
}, },
version.blocks()[0].hash, version.blocks()[0].hash,
)); ));

View file

@ -391,7 +391,8 @@ where
let (old_entry, new_entry) = self.store.transaction(|db| { let (old_entry, new_entry) = self.store.transaction(|db| {
let (old_entry, new_entry) = match db.get(&tree_key)? { let (old_entry, new_entry) = match db.get(&tree_key)? {
Some(prev_bytes) => { Some(prev_bytes) => {
let old_entry = self.decode_entry(&prev_bytes) let old_entry = self
.decode_entry(&prev_bytes)
.map_err(sled::ConflictableTransactionError::Abort)?; .map_err(sled::ConflictableTransactionError::Abort)?;
let mut new_entry = old_entry.clone(); let mut new_entry = old_entry.clone();
new_entry.merge(&update); new_entry.merge(&update);