320 lines
10 KiB
Rust
320 lines
10 KiB
Rust
//use chrono::{Local, TimeZone};
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use failure::*;
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use futures::*;
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use hyper::header::{self, HeaderValue, UPGRADE};
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use hyper::http::request::Parts;
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use hyper::{Body, Response, StatusCode};
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use serde_json::Value;
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use proxmox::{sortable, identity};
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use proxmox::api::http_err;
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use proxmox::api::{ApiResponseFuture, ApiHandler, ApiMethod, Router, RpcEnvironment};
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use proxmox::api::schema::*;
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use crate::api2::types::*;
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use crate::backup::*;
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use crate::server::{WorkerTask, H2Service};
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use crate::tools;
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mod environment;
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use environment::*;
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pub const ROUTER: Router = Router::new()
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.upgrade(&API_METHOD_UPGRADE_BACKUP);
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#[sortable]
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pub const API_METHOD_UPGRADE_BACKUP: ApiMethod = ApiMethod::new(
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&ApiHandler::AsyncHttp(&upgrade_to_backup_reader_protocol),
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&ObjectSchema::new(
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concat!("Upgraded to backup protocol ('", PROXMOX_BACKUP_READER_PROTOCOL_ID_V1!(), "')."),
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&sorted!([
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("store", false, &DATASTORE_SCHEMA),
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("backup-type", false, &StringSchema::new("Backup type.")
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.format(&ApiStringFormat::Enum(&["vm", "ct", "host"]))
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.schema()
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),
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("backup-id", false, &StringSchema::new("Backup ID.").schema()),
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("backup-time", false, &IntegerSchema::new("Backup time (Unix epoch.)")
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.minimum(1_547_797_308)
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.schema()
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),
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("debug", true, &BooleanSchema::new("Enable verbose debug logging.").schema()),
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]),
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)
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);
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fn upgrade_to_backup_reader_protocol(
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parts: Parts,
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req_body: Body,
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param: Value,
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_info: &ApiMethod,
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rpcenv: Box<dyn RpcEnvironment>,
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) -> ApiResponseFuture {
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async move {
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let debug = param["debug"].as_bool().unwrap_or(false);
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let store = tools::required_string_param(¶m, "store")?.to_owned();
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let datastore = DataStore::lookup_datastore(&store)?;
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let backup_type = tools::required_string_param(¶m, "backup-type")?;
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let backup_id = tools::required_string_param(¶m, "backup-id")?;
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let backup_time = tools::required_integer_param(¶m, "backup-time")?;
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let protocols = parts
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.headers
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.get("UPGRADE")
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.ok_or_else(|| format_err!("missing Upgrade header"))?
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.to_str()?;
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if protocols != PROXMOX_BACKUP_READER_PROTOCOL_ID_V1!() {
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bail!("invalid protocol name");
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}
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if parts.version >= http::version::Version::HTTP_2 {
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bail!("unexpected http version '{:?}' (expected version < 2)", parts.version);
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}
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let username = rpcenv.get_user().unwrap();
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let env_type = rpcenv.env_type();
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let backup_dir = BackupDir::new(backup_type, backup_id, backup_time);
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let path = datastore.base_path();
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//let files = BackupInfo::list_files(&path, &backup_dir)?;
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let worker_id = format!("{}_{}_{}_{:08X}", store, backup_type, backup_id, backup_dir.backup_time().timestamp());
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WorkerTask::spawn("reader", Some(worker_id), &username.clone(), true, move |worker| {
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let mut env = ReaderEnvironment::new(
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env_type, username.clone(), worker.clone(), datastore, backup_dir);
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env.debug = debug;
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env.log(format!("starting new backup reader datastore '{}': {:?}", store, path));
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let service = H2Service::new(env.clone(), worker.clone(), &READER_API_ROUTER, debug);
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let abort_future = worker.abort_future();
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let req_fut = req_body
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.on_upgrade()
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.map_err(Error::from)
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.and_then({
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let env = env.clone();
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move |conn| {
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env.debug("protocol upgrade done");
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let mut http = hyper::server::conn::Http::new();
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http.http2_only(true);
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// increase window size: todo - find optiomal size
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let window_size = 32*1024*1024; // max = (1 << 31) - 2
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http.http2_initial_stream_window_size(window_size);
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http.http2_initial_connection_window_size(window_size);
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http.serve_connection(conn, service)
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.map_err(Error::from)
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}
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});
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let abort_future = abort_future
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.map(|_| Err(format_err!("task aborted")));
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use futures::future::Either;
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futures::future::select(req_fut, abort_future)
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.map(|res| match res {
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Either::Left((Ok(res), _)) => Ok(res),
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Either::Left((Err(err), _)) => Err(err),
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Either::Right((Ok(res), _)) => Ok(res),
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Either::Right((Err(err), _)) => Err(err),
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})
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.map_ok(move |_| env.log("reader finished sucessfully"))
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})?;
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let response = Response::builder()
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.status(StatusCode::SWITCHING_PROTOCOLS)
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.header(UPGRADE, HeaderValue::from_static(PROXMOX_BACKUP_READER_PROTOCOL_ID_V1!()))
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.body(Body::empty())?;
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Ok(response)
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}.boxed()
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}
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pub const READER_API_ROUTER: Router = Router::new()
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.subdirs(&[
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(
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"chunk", &Router::new()
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.download(&API_METHOD_DOWNLOAD_CHUNK)
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),
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(
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"download", &Router::new()
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.download(&API_METHOD_DOWNLOAD_FILE)
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),
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(
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"speedtest", &Router::new()
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.download(&API_METHOD_SPEEDTEST)
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),
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]);
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#[sortable]
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pub const API_METHOD_DOWNLOAD_FILE: ApiMethod = ApiMethod::new(
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&ApiHandler::AsyncHttp(&download_file),
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&ObjectSchema::new(
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"Download specified file.",
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&sorted!([
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("file-name", false, &crate::api2::types::BACKUP_ARCHIVE_NAME_SCHEMA),
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]),
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)
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);
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fn download_file(
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_parts: Parts,
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_req_body: Body,
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param: Value,
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_info: &ApiMethod,
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rpcenv: Box<dyn RpcEnvironment>,
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) -> ApiResponseFuture {
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async move {
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let env: &ReaderEnvironment = rpcenv.as_ref();
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let file_name = tools::required_string_param(¶m, "file-name")?.to_owned();
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let mut path = env.datastore.base_path();
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path.push(env.backup_dir.relative_path());
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path.push(&file_name);
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let path2 = path.clone();
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let path3 = path.clone();
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let file = tokio::fs::File::open(path)
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.map_err(move |err| http_err!(BAD_REQUEST, format!("open file {:?} failed: {}", path2, err)))
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.await?;
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env.log(format!("download {:?}", path3));
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let payload = tokio_util::codec::FramedRead::new(file, tokio_util::codec::BytesCodec::new())
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.map_ok(|bytes| hyper::body::Bytes::from(bytes.freeze()));
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let body = Body::wrap_stream(payload);
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// fixme: set other headers ?
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Ok(Response::builder()
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.status(StatusCode::OK)
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.header(header::CONTENT_TYPE, "application/octet-stream")
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.body(body)
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.unwrap())
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}.boxed()
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}
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#[sortable]
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pub const API_METHOD_DOWNLOAD_CHUNK: ApiMethod = ApiMethod::new(
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&ApiHandler::AsyncHttp(&download_chunk),
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&ObjectSchema::new(
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"Download specified chunk.",
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&sorted!([
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("digest", false, &CHUNK_DIGEST_SCHEMA),
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]),
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)
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);
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fn download_chunk(
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_parts: Parts,
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_req_body: Body,
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param: Value,
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_info: &ApiMethod,
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rpcenv: Box<dyn RpcEnvironment>,
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) -> ApiResponseFuture {
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async move {
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let env: &ReaderEnvironment = rpcenv.as_ref();
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let digest_str = tools::required_string_param(¶m, "digest")?;
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let digest = proxmox::tools::hex_to_digest(digest_str)?;
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let (path, _) = env.datastore.chunk_path(&digest);
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let path2 = path.clone();
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env.debug(format!("download chunk {:?}", path));
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let data = tokio::fs::read(path)
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.map_err(move |err| http_err!(BAD_REQUEST, format!("reading file {:?} failed: {}", path2, err)))
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.await?;
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let body = Body::from(data);
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// fixme: set other headers ?
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Ok(Response::builder()
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.status(StatusCode::OK)
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.header(header::CONTENT_TYPE, "application/octet-stream")
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.body(body)
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.unwrap())
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}.boxed()
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}
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/* this is too slow
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fn download_chunk_old(
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_parts: Parts,
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_req_body: Body,
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param: Value,
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_info: &ApiMethod,
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rpcenv: Box<dyn RpcEnvironment>,
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) -> Result<ApiResponseFuture, Error> {
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let env: &ReaderEnvironment = rpcenv.as_ref();
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let env2 = env.clone();
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let digest_str = tools::required_string_param(¶m, "digest")?;
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let digest = proxmox::tools::hex_to_digest(digest_str)?;
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let (path, _) = env.datastore.chunk_path(&digest);
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let path2 = path.clone();
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let path3 = path.clone();
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let response_future = tokio::fs::File::open(path)
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.map_err(move |err| http_err!(BAD_REQUEST, format!("open file {:?} failed: {}", path2, err)))
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.and_then(move |file| {
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env2.debug(format!("download chunk {:?}", path3));
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let payload = tokio_util::codec::FramedRead::new(file, tokio_util::codec::BytesCodec::new())
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.map_ok(|bytes| hyper::body::Bytes::from(bytes.freeze()));
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let body = Body::wrap_stream(payload);
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// fixme: set other headers ?
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futures::future::ok(Response::builder()
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.status(StatusCode::OK)
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.header(header::CONTENT_TYPE, "application/octet-stream")
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.body(body)
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.unwrap())
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});
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Ok(Box::new(response_future))
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}
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*/
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pub const API_METHOD_SPEEDTEST: ApiMethod = ApiMethod::new(
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&ApiHandler::AsyncHttp(&speedtest),
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&ObjectSchema::new("Test 4M block download speed.", &[])
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);
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fn speedtest(
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_parts: Parts,
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_req_body: Body,
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_param: Value,
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_info: &ApiMethod,
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_rpcenv: Box<dyn RpcEnvironment>,
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) -> ApiResponseFuture {
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let buffer = vec![65u8; 1024*1024]; // nonsense [A,A,A...]
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let body = Body::from(buffer);
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let response = Response::builder()
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.status(StatusCode::OK)
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.header(header::CONTENT_TYPE, "application/octet-stream")
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.body(body)
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.unwrap();
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future::ok(response).boxed()
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}
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