Deuxfleurs/garage
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Support website publishing #7

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lx merged 61 commits from feature/website into master 2021-01-15 16:49:51 +00:00
Conversation 3 Commits 61 Files changed 17 +109 -5
3 changed files with 109 additions and 5 deletions
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1
Cargo.lock generated
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@ -660,6 +660,7 @@ dependencies = [
"garage_util 0.1.0",
"hex",
"http",
"httpdate",
"hyper",
"idna",
"log",

2
src/web/Cargo.toml
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@ -42,3 +42,5 @@ webpki = "0.21"
roxmltree = "0.11"
idna = "0.2"
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lx commented 2021-01-13 21:10:45 +00:00
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roxmltree, rustls, webpki, httpdate and maybe some others can probably be removed

roxmltree, rustls, webpki, httpdate and maybe some others can probably be removed
httpdate = "0.3"

111
src/web/web_server.rs
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@ -2,17 +2,23 @@ use std::borrow::Cow;
use std::convert::Infallible;
use std::net::SocketAddr;
use std::sync::Arc;
use std::time::{Duration, UNIX_EPOCH};
use futures::future::Future;
use futures::stream::*;
use hyper::header::HOST;
use hyper::server::conn::AddrStream;
use hyper::service::{make_service_fn, service_fn};
use hyper::{Body, Request, Response, Server};
use hyper::{
header::HOST,
body::Bytes,
server::conn::AddrStream,
service::{make_service_fn, service_fn},
Body, Request, Response, Server, StatusCode};
use idna::domain_to_unicode;
use garage_model::garage::Garage;
use garage_model::object_table::*;
use garage_table::EmptyKey;
use garage_util::error::Error as GarageError;
use crate::error::*;
@ -90,7 +96,102 @@ async fn serve_file(garage: Arc<Garage>, req: Request<Body>) -> Result<Response<
.await?
.ok_or(Error::NotFound)?;
Ok(Response::new(Body::from("hello world\n")))
// Get last complete version descriptor
let last_v = object
.versions()
.iter()
.rev()
.filter(|v| v.is_complete())
.next()
.ok_or(Error::NotFound)?;
// Unwrap version
let last_v_data = match &last_v.state {
ObjectVersionState::Complete(x) => x,
_ => unreachable!(),
};
// Get metadata from version
let last_v_meta = match last_v_data {
ObjectVersionData::DeleteMarker => return Err(Error::NotFound),
ObjectVersionData::Inline(meta, _) => meta,
ObjectVersionData::FirstBlock(meta, _) => meta,
};
// @FIXME Support range
// Set headers
let resp_builder = object_headers(&last_v, last_v_meta).status(StatusCode::OK);
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lx commented 2021-01-13 21:17:16 +00:00
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NO!! expect makes us crash (panic) if the condition is not verified, this is not acceptable (we don't want to assume that authority is well formed, maybe hyper checks it for us but maybe not and we don't want to take risks)

NO!! `expect` makes us crash (panic) if the condition is not verified, this is not acceptable (we don't want to assume that authority is well formed, maybe hyper checks it for us but maybe not and we don't want to take risks)
// Stream body
match &last_v_data {
ObjectVersionData::DeleteMarker => unreachable!(),
ObjectVersionData::Inline(_, bytes) => {
let body: Body = Body::from(bytes.to_vec());
Ok(resp_builder.body(body)?)
}
ObjectVersionData::FirstBlock(_, first_block_hash) => {
let read_first_block = garage.block_manager.rpc_get_block(&first_block_hash);
let get_next_blocks = garage.version_table.get(&last_v.uuid, &EmptyKey);
let (first_block, version) = futures::try_join!(read_first_block, get_next_blocks)?;
let version = version.ok_or(Error::NotFound)?;
let mut blocks = version
.blocks()
.iter()
.map(|vb| (vb.hash, None))
.collect::<Vec<_>>();
blocks[0].1 = Some(first_block);
let body_stream = futures::stream::iter(blocks)
.map(move |(hash, data_opt)| {
let garage = garage.clone();
async move {
if let Some(data) = data_opt {
Ok(Bytes::from(data))
} else {
garage
.block_manager
.rpc_get_block(&hash)
.await
.map(Bytes::from)
}
}
})
.buffered(2);
//let body: Body = Box::new(StreamBody::new(Box::pin(body_stream)));
let body = hyper::body::Body::wrap_stream(body_stream);
Ok(resp_builder.body(body)?)
}
}
}
// Copied from api/s3_get.rs
fn object_headers(
version: &ObjectVersion,
version_meta: &ObjectVersionMeta,
) -> http::response::Builder {
let date = UNIX_EPOCH + Duration::from_millis(version.timestamp);
let date_str = httpdate::fmt_http_date(date);
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lx commented 2021-01-13 21:18:51 +00:00
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this case is unreachable!() thanks to the previous if

this case is `unreachable!()` thanks to the previous if
let mut resp = Response::builder()
.header(
"Content-Type",
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("Accept-Ranges", format!("bytes"));
for (k, v) in version_meta.headers.other.iter() {
resp = resp.header(k, v.to_string());
}
resp
}
/// Extract host from the authority section given by the HTTP host header