2019-05-08 15:36:19 +00:00
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use failure::*;
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use lazy_static::lazy_static;
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use std::collections::HashMap;
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use std::sync::Arc;
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use futures::*;
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use hyper::{Body, Request, Response, StatusCode};
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use crate::tools;
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use crate::api_schema::router::*;
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use crate::server::formatter::*;
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use crate::server::WorkerTask;
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use super::environment::*;
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lazy_static!{
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static ref BACKUP_ROUTER: Router = super::backup_api();
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}
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pub struct BackupService {
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rpcenv: BackupEnvironment,
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worker: Arc<WorkerTask>,
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2019-05-29 07:35:21 +00:00
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debug: bool,
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2019-05-08 15:36:19 +00:00
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}
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impl BackupService {
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2019-05-29 07:35:21 +00:00
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pub fn new(rpcenv: BackupEnvironment, worker: Arc<WorkerTask>, debug: bool) -> Self {
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Self { rpcenv, worker, debug }
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}
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pub fn debug<S: AsRef<str>>(&self, msg: S) {
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if self.debug { self.worker.log(msg); }
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2019-05-08 15:36:19 +00:00
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}
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fn handle_request(&self, req: Request<Body>) -> BoxFut {
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let (parts, body) = req.into_parts();
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let method = parts.method.clone();
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let (path, components) = match tools::normalize_uri_path(parts.uri.path()) {
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Ok((p,c)) => (p, c),
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Err(err) => return Box::new(future::err(http_err!(BAD_REQUEST, err.to_string()))),
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};
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2019-05-29 08:17:38 +00:00
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self.debug(format!("{} {}", method, path));
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2019-05-08 15:36:19 +00:00
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let mut uri_param = HashMap::new();
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match BACKUP_ROUTER.find_method(&components, method, &mut uri_param) {
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MethodDefinition::None => {
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let err = http_err!(NOT_FOUND, "Path not found.".to_string());
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2019-05-09 16:01:24 +00:00
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return Box::new(future::ok((self.rpcenv.formatter.format_error)(err)));
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2019-05-08 15:36:19 +00:00
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}
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MethodDefinition::Simple(api_method) => {
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2019-05-09 16:01:24 +00:00
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return crate::server::rest::handle_sync_api_request(
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self.rpcenv.clone(), api_method, self.rpcenv.formatter, parts, body, uri_param);
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2019-05-08 15:36:19 +00:00
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}
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MethodDefinition::Async(async_method) => {
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2019-05-09 16:01:24 +00:00
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return crate::server::rest::handle_async_api_request(
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self.rpcenv.clone(), async_method, self.rpcenv.formatter, parts, body, uri_param);
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2019-05-08 15:36:19 +00:00
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}
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}
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}
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fn log_response(worker: Arc<WorkerTask>, method: hyper::Method, path: &str, resp: &Response<Body>) {
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let status = resp.status();
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if !status.is_success() {
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let reason = status.canonical_reason().unwrap_or("unknown reason");
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let mut message = "request failed";
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if let Some(data) = resp.extensions().get::<ErrorMessageExtension>() {
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message = &data.0;
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}
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worker.log(format!("{} {}: {} {}: {}", method.as_str(), path, status.as_str(), reason, message));
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}
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}
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}
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impl hyper::service::Service for BackupService {
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type ReqBody = Body;
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type ResBody = Body;
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type Error = hyper::Error;
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type Future = Box<Future<Item = Response<Body>, Error = Self::Error> + Send>;
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fn call(&mut self, req: Request<Self::ReqBody>) -> Self::Future {
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let path = req.uri().path().to_owned();
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let method = req.method().clone();
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let worker = self.worker.clone();
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Box::new(self.handle_request(req).then(move |result| {
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match result {
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Ok(res) => {
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Self::log_response(worker, method, &path, &res);
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Ok::<_, hyper::Error>(res)
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}
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Err(err) => {
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if let Some(apierr) = err.downcast_ref::<HttpError>() {
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let mut resp = Response::new(Body::from(apierr.message.clone()));
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2019-05-23 06:05:39 +00:00
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resp.extensions_mut().insert(ErrorMessageExtension(apierr.message.clone()));
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2019-05-08 15:36:19 +00:00
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*resp.status_mut() = apierr.code;
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Self::log_response(worker, method, &path, &resp);
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Ok(resp)
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} else {
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let mut resp = Response::new(Body::from(err.to_string()));
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2019-05-23 06:05:39 +00:00
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resp.extensions_mut().insert(ErrorMessageExtension(err.to_string()));
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2019-05-08 15:36:19 +00:00
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*resp.status_mut() = StatusCode::BAD_REQUEST;
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Self::log_response(worker, method, &path, &resp);
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Ok(resp)
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}
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}
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}
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}))
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}
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}
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