src/api2/backup/upload_chunk.rs: switch to async
Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
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59b2baa0f6
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7622005574
@ -1,16 +1,18 @@
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use std::pin::Pin;
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use std::sync::Arc;
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use std::task::{Context, Poll};
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use failure::*;
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use futures::*;
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use std::sync::Arc;
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use hyper::http::request::Parts;
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use hyper::Body;
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use hyper::http::request::Parts;
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use serde_json::{json, Value};
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use crate::tools;
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use crate::backup::*;
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use crate::api2::types::*;
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use crate::api_schema::*;
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use crate::api_schema::router::*;
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use crate::api2::types::*;
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use crate::backup::*;
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use crate::tools;
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use super::environment::*;
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@ -24,51 +26,58 @@ pub struct UploadChunk {
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}
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impl UploadChunk {
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pub fn new(stream: Body, store: Arc<DataStore>, digest: [u8; 32], size: u32, encoded_size: u32) -> Self {
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Self { stream, store, size, encoded_size, raw_data: Some(vec![]), digest }
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}
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}
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impl Future for UploadChunk {
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type Item = ([u8; 32], u32, u32, bool);
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type Error = failure::Error;
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type Output = Result<([u8; 32], u32, u32, bool), Error>;
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fn poll(&mut self) -> Poll<([u8; 32], u32, u32, bool), failure::Error> {
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loop {
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match try_ready!(self.stream.poll()) {
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Some(input) => {
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if let Some(ref mut raw_data) = self.raw_data {
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if (raw_data.len() + input.len()) > (self.encoded_size as usize) {
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bail!("uploaded chunk is larger than announced.");
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fn poll(self: Pin<&mut Self>, cx: &mut Context) -> Poll<Self::Output> {
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let this = self.get_mut();
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let err: Error = loop {
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match ready!(Pin::new(&mut this.stream).poll_next(cx)) {
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Some(Err(err)) => return Poll::Ready(Err(Error::from(err))),
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Some(Ok(input)) => {
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if let Some(ref mut raw_data) = this.raw_data {
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if (raw_data.len() + input.len()) > (this.encoded_size as usize) {
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break format_err!("uploaded chunk is larger than announced.");
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}
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raw_data.extend_from_slice(&input);
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} else {
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bail!("poll upload chunk stream failed - already finished.");
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break format_err!("poll upload chunk stream failed - already finished.");
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}
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}
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None => {
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if let Some(raw_data) = self.raw_data.take() {
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if raw_data.len() != (self.encoded_size as usize) {
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bail!("uploaded chunk has unexpected size.");
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if let Some(raw_data) = this.raw_data.take() {
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if raw_data.len() != (this.encoded_size as usize) {
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break format_err!("uploaded chunk has unexpected size.");
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}
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let mut chunk = DataChunk::from_raw(raw_data, self.digest)?;
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let (is_duplicate, compressed_size) = match proxmox::tools::try_block! {
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let mut chunk = DataChunk::from_raw(raw_data, this.digest)?;
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chunk.verify_unencrypted(self.size as usize)?;
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chunk.verify_unencrypted(this.size as usize)?;
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// always comput CRC at server side
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chunk.set_crc(chunk.compute_crc());
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let (is_duplicate, compressed_size) = self.store.insert_chunk(&chunk)?;
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this.store.insert_chunk(&chunk)
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} {
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Ok(res) => res,
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Err(err) => break err,
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};
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return Ok(Async::Ready((self.digest, self.size, compressed_size as u32, is_duplicate)))
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return Poll::Ready(Ok((this.digest, this.size, compressed_size as u32, is_duplicate)))
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} else {
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bail!("poll upload chunk stream failed - already finished.");
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}
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break format_err!("poll upload chunk stream failed - already finished.");
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}
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}
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}
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};
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Poll::Ready(Err(err))
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}
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}
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@ -122,7 +131,7 @@ fn upload_fixed_chunk(
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Ok(json!(digest_str))
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});
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Ok(env.format_response(result))
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future::ok(env.format_response(result))
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});
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Ok(Box::new(resp))
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@ -178,7 +187,7 @@ fn upload_dynamic_chunk(
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Ok(json!(digest_str))
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});
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Ok(env.format_response(result))
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future::ok(env.format_response(result))
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});
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Ok(Box::new(resp))
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@ -201,10 +210,10 @@ fn upload_speedtest(
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let resp = req_body
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.map_err(Error::from)
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.fold(0, |size: usize, chunk| -> Result<usize, Error> {
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.try_fold(0, |size: usize, chunk| {
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let sum = size + chunk.len();
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//println!("UPLOAD {} bytes, sum {}", chunk.len(), sum);
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Ok(sum)
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future::ok::<usize, Error>(sum)
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})
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.then(move |result| {
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match result {
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@ -216,7 +225,7 @@ fn upload_speedtest(
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}
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}
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let env: &BackupEnvironment = rpcenv.as_ref();
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Ok(env.format_response(Ok(Value::Null)))
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future::ok(env.format_response(Ok(Value::Null)))
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});
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Ok(Box::new(resp))
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@ -257,11 +266,11 @@ fn upload_blob(
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let resp = req_body
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.map_err(Error::from)
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.fold(Vec::new(), |mut acc, chunk| {
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.try_fold(Vec::new(), |mut acc, chunk| {
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acc.extend_from_slice(&*chunk);
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Ok::<_, Error>(acc)
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future::ok::<_, Error>(acc)
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})
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.and_then(move |data| {
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.and_then(move |data| async move {
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if encoded_size != data.len() {
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bail!("got blob with unexpected length ({} != {})", encoded_size, data.len());
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}
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@ -271,7 +280,7 @@ fn upload_blob(
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Ok(())
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})
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.and_then(move |_| {
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Ok(env3.format_response(Ok(Value::Null)))
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future::ok(env3.format_response(Ok(Value::Null)))
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})
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;
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