src/client/http_client.rs

   1 use std::io::Write;
   2 use std::task::{Context, Poll};
   3 use std::sync::{Arc, Mutex};
   4
   5 use chrono::Utc;
   6 use anyhow::{bail, format_err, Error};
   7 use futures::*;
   8 use http::Uri;
   9 use http::header::HeaderValue;
  10 use http::{Request, Response};
  11 use hyper::Body;
  12 use hyper::client::{Client, HttpConnector};
  13 use openssl::{ssl::{SslConnector, SslMethod}, x509::X509StoreContextRef};
  14 use serde_json::{json, Value};
  15 use percent_encoding::percent_encode;
  16 use xdg::BaseDirectories;
  17
  18 use proxmox::{
  19     sys::linux::tty,
  20     tools::{
  21         fs::{file_get_json, replace_file, CreateOptions},
  22     }
  23 };
  24
  25 use super::pipe_to_stream::PipeToSendStream;
  26 use crate::tools::async_io::EitherStream;
  27 use crate::tools::{self, BroadcastFuture, DEFAULT_ENCODE_SET};
  28
  29 #[derive(Clone)]
  30 pub struct AuthInfo {
  31     pub username: String,
  32     pub ticket: String,
  33     pub token: String,
  34 }
  35
  36 pub struct HttpClientOptions {
  37     prefix: Option<String>,
  38     password: Option<String>,
  39     fingerprint: Option<String>,
  40     interactive: bool,
  41     ticket_cache: bool,
  42     fingerprint_cache: bool,
  43     verify_cert: bool,
  44 }
  45
  46 impl HttpClientOptions {
  47
  48     pub fn new() -> Self {
  49         Self {
  50             prefix: None,
  51             password: None,
  52             fingerprint: None,
  53             interactive: false,
  54             ticket_cache: false,
  55             fingerprint_cache: false,
  56             verify_cert: true,
  57         }
  58     }
  59
  60     pub fn prefix(mut self, prefix: Option<String>) -> Self {
  61         self.prefix = prefix;
  62         self
  63     }
  64
  65     pub fn password(mut self, password: Option<String>) -> Self {
  66         self.password = password;
  67         self
  68     }
  69
  70     pub fn fingerprint(mut self, fingerprint: Option<String>) -> Self {
  71         self.fingerprint = fingerprint;
  72         self
  73     }
  74
  75     pub fn interactive(mut self, interactive: bool) -> Self {
  76         self.interactive = interactive;
  77         self
  78     }
  79
  80     pub fn ticket_cache(mut self, ticket_cache: bool) -> Self {
  81         self.ticket_cache = ticket_cache;
  82         self
  83     }
  84
  85     pub fn fingerprint_cache(mut self, fingerprint_cache: bool) -> Self {
  86         self.fingerprint_cache = fingerprint_cache;
  87         self
  88     }
  89
  90     pub fn verify_cert(mut self, verify_cert: bool) -> Self {
  91         self.verify_cert = verify_cert;
  92         self
  93     }
  94 }
  95
  96 /// HTTP(S) API client
  97 pub struct HttpClient {
  98     client: Client<HttpsConnector>,
  99     server: String,
 100     fingerprint: Arc<Mutex<Option<String>>>,
 101     auth: BroadcastFuture<AuthInfo>,
 102     _options: HttpClientOptions,
 103 }
 104
 105 /// Delete stored ticket data (logout)
 106 pub fn delete_ticket_info(prefix: &str, server: &str, username: &str) -> Result<(), Error> {
 107
 108     let base = BaseDirectories::with_prefix(prefix)?;
 109
 110     // usually /run/user/<uid>/...
 111     let path = base.place_runtime_file("tickets")?;
 112
 113     let mode = nix::sys::stat::Mode::from_bits_truncate(0o0600);
 114
 115     let mut data = file_get_json(&path, Some(json!({})))?;
 116
 117     if let Some(map) = data[server].as_object_mut() {
 118         map.remove(username);
 119     }
 120
 121     replace_file(path, data.to_string().as_bytes(), CreateOptions::new().perm(mode))?;
 122
 123     Ok(())
 124 }
 125
 126 fn store_fingerprint(prefix: &str, server: &str, fingerprint: &str) -> Result<(), Error> {
 127
 128     let base = BaseDirectories::with_prefix(prefix)?;
 129
 130     // usually ~/.config/<prefix>/fingerprints
 131     let path = base.place_config_file("fingerprints")?;
 132
 133     let raw = match std::fs::read_to_string(&path) {
 134         Ok(v) => v,
 135         Err(err) => {
 136             if err.kind() == std::io::ErrorKind::NotFound {
 137                 String::new()
 138             } else {
 139                 bail!("unable to read fingerprints from {:?} - {}", path, err);
 140             }
 141         }
 142     };
 143
 144     let mut result = String::new();
 145
 146     raw.split('\n').for_each(|line| {
 147         let items: Vec<String> = line.split_whitespace().map(String::from).collect();
 148         if items.len() == 2 {
 149             if &items[0] == server {
 150                 // found, add later with new fingerprint
 151             } else {
 152                 result.push_str(line);
 153                 result.push('\n');
 154             }
 155         }
 156     });
 157
 158     result.push_str(server);
 159     result.push(' ');
 160     result.push_str(fingerprint);
 161     result.push('\n');
 162
 163     replace_file(path, result.as_bytes(), CreateOptions::new())?;
 164
 165     Ok(())
 166 }
 167
 168 fn load_fingerprint(prefix: &str, server: &str) -> Option<String> {
 169
 170     let base = BaseDirectories::with_prefix(prefix).ok()?;
 171
 172     // usually ~/.config/<prefix>/fingerprints
 173     let path = base.place_config_file("fingerprints").ok()?;
 174
 175     let raw = std::fs::read_to_string(&path).ok()?;
 176
 177     for line in raw.split('\n') {
 178         let items: Vec<String> = line.split_whitespace().map(String::from).collect();
 179         if items.len() == 2 {
 180             if &items[0] == server {
 181                 return Some(items[1].clone());
 182             }
 183         }
 184     }
 185
 186     None
 187 }
 188
 189 fn store_ticket_info(prefix: &str, server: &str, username: &str, ticket: &str, token: &str) -> Result<(), Error> {
 190
 191     let base = BaseDirectories::with_prefix(prefix)?;
 192
 193     // usually /run/user/<uid>/...
 194     let path = base.place_runtime_file("tickets")?;
 195
 196     let mode = nix::sys::stat::Mode::from_bits_truncate(0o0600);
 197
 198     let mut data = file_get_json(&path, Some(json!({})))?;
 199
 200     let now = Utc::now().timestamp();
 201
 202     data[server][username] = json!({ "timestamp": now, "ticket": ticket, "token": token});
 203
 204     let mut new_data = json!({});
 205
 206     let ticket_lifetime = tools::ticket::TICKET_LIFETIME - 60;
 207
 208     let empty = serde_json::map::Map::new();
 209     for (server, info) in data.as_object().unwrap_or(&empty) {
 210         for (_user, uinfo) in info.as_object().unwrap_or(&empty) {
 211             if let Some(timestamp) = uinfo["timestamp"].as_i64() {
 212                 let age = now - timestamp;
 213                 if age < ticket_lifetime {
 214                     new_data[server][username] = uinfo.clone();
 215                 }
 216             }
 217         }
 218     }
 219
 220     replace_file(path, new_data.to_string().as_bytes(), CreateOptions::new().perm(mode))?;
 221
 222     Ok(())
 223 }
 224
 225 fn load_ticket_info(prefix: &str, server: &str, username: &str) -> Option<(String, String)> {
 226     let base = BaseDirectories::with_prefix(prefix).ok()?;
 227
 228     // usually /run/user/<uid>/...
 229     let path = base.place_runtime_file("tickets").ok()?;
 230     let data = file_get_json(&path, None).ok()?;
 231     let now = Utc::now().timestamp();
 232     let ticket_lifetime = tools::ticket::TICKET_LIFETIME - 60;
 233     let uinfo = data[server][username].as_object()?;
 234     let timestamp = uinfo["timestamp"].as_i64()?;
 235     let age = now - timestamp;
 236
 237     if age < ticket_lifetime {
 238         let ticket = uinfo["ticket"].as_str()?;
 239         let token = uinfo["token"].as_str()?;
 240         Some((ticket.to_owned(), token.to_owned()))
 241     } else {
 242         None
 243     }
 244 }
 245
 246 impl HttpClient {
 247
 248     pub fn new(server: &str, username: &str, mut options: HttpClientOptions) -> Result<Self, Error> {
 249
 250         let verified_fingerprint = Arc::new(Mutex::new(None));
 251
 252         let mut fingerprint = options.fingerprint.take();
 253
 254         if fingerprint.is_some() {
 255             // do not store fingerprints passed via options in cache
 256             options.fingerprint_cache = false;
 257         } else if options.fingerprint_cache && options.prefix.is_some() {
 258             fingerprint = load_fingerprint(options.prefix.as_ref().unwrap(), server);
 259         }
 260
 261         let mut ssl_connector_builder = SslConnector::builder(SslMethod::tls()).unwrap();
 262
 263         if options.verify_cert {
 264             let server = server.to_string();
 265             let verified_fingerprint = verified_fingerprint.clone();
 266             let interactive = options.interactive;
 267             let fingerprint_cache = options.fingerprint_cache;
 268             let prefix = options.prefix.clone();
 269             ssl_connector_builder.set_verify_callback(openssl::ssl::SslVerifyMode::PEER, move |valid, ctx| {
 270                 let (valid, fingerprint) = Self::verify_callback(valid, ctx, fingerprint.clone(), interactive);
 271                 if valid {
 272                     if let Some(fingerprint) = fingerprint {
 273                         if fingerprint_cache && prefix.is_some() {
 274                             if let Err(err) = store_fingerprint(
 275                                 prefix.as_ref().unwrap(), &server, &fingerprint) {
 276                                 eprintln!("{}", err);
 277                             }
 278                         }
 279                         *verified_fingerprint.lock().unwrap() = Some(fingerprint);
 280                     }
 281                 }
 282                 valid
 283             });
 284         } else {
 285             ssl_connector_builder.set_verify(openssl::ssl::SslVerifyMode::NONE);
 286         }
 287
 288         let mut httpc = hyper::client::HttpConnector::new();
 289         httpc.set_nodelay(true); // important for h2 download performance!
 290         httpc.set_recv_buffer_size(Some(1024*1024)); //important for h2 download performance!
 291         httpc.enforce_http(false); // we want https...
 292
 293         let https = HttpsConnector::with_connector(httpc, ssl_connector_builder.build());
 294
 295         let client = Client::builder()
 296         //.http2_initial_stream_window_size( (1 << 31) - 2)
 297         //.http2_initial_connection_window_size( (1 << 31) - 2)
 298             .build::<_, Body>(https);
 299
 300         let password = options.password.take();
 301         let use_ticket_cache = options.ticket_cache && options.prefix.is_some();
 302
 303         let password = if let Some(password) = password {
 304             password
 305         } else {
 306             let mut ticket_info = None;
 307             if use_ticket_cache {
 308                 ticket_info = load_ticket_info(options.prefix.as_ref().unwrap(), server, username);
 309             }
 310             if let Some((ticket, _token)) = ticket_info {
 311                 ticket
 312             } else {
 313                 Self::get_password(&username, options.interactive)?
 314             }
 315         };
 316
 317         let login_future = Self::credentials(
 318             client.clone(),
 319             server.to_owned(),
 320             username.to_owned(),
 321             password,
 322         ).map_ok({
 323             let server = server.to_string();
 324             let prefix = options.prefix.clone();
 325
 326             move |auth| {
 327                 if use_ticket_cache & &prefix.is_some() {
 328                     let _ = store_ticket_info(prefix.as_ref().unwrap(), &server, &auth.username, &auth.ticket, &auth.token);
 329                 }
 330
 331                 auth
 332             }
 333         });
 334
 335         Ok(Self {
 336             client,
 337             server: String::from(server),
 338             fingerprint: verified_fingerprint,
 339             auth: BroadcastFuture::new(Box::new(login_future)),
 340             _options: options,
 341         })
 342     }
 343
 344     /// Login
 345     ///
 346     /// Login is done on demand, so this is onyl required if you need
 347     /// access to authentication data in 'AuthInfo'.
 348     pub async fn login(&self) -> Result<AuthInfo, Error> {
 349         self.auth.listen().await
 350     }
 351
 352     /// Returns the optional fingerprint passed to the new() constructor.
 353     pub fn fingerprint(&self) -> Option<String> {
 354         (*self.fingerprint.lock().unwrap()).clone()
 355     }
 356
 357     fn get_password(username: &str, interactive: bool) -> Result<String, Error> {
 358         // If we're on a TTY, query the user for a password
 359         if interactive && tty::stdin_isatty() {
 360             let msg = format!("Password for \"{}\": ", username);
 361             return Ok(String::from_utf8(tty::read_password(&msg)?)?);
 362         }
 363
 364         bail!("no password input mechanism available");
 365     }
 366
 367     fn verify_callback(
 368         valid: bool, ctx:
 369         &mut X509StoreContextRef,
 370         expected_fingerprint: Option<String>,
 371         interactive: bool,
 372     ) -> (bool, Option<String>) {
 373         if valid { return (true, None); }
 374
 375         let cert = match ctx.current_cert() {
 376             Some(cert) => cert,
 377             None => return (false, None),
 378         };
 379
 380         let depth = ctx.error_depth();
 381         if depth != 0 { return (false, None); }
 382
 383         let fp = match cert.digest(openssl::hash::MessageDigest::sha256()) {
 384             Ok(fp) => fp,
 385             Err(_) => return (false, None), // should not happen
 386         };
 387         let fp_string = proxmox::tools::digest_to_hex(&fp);
 388         let fp_string = fp_string.as_bytes().chunks(2).map(|v| std::str::from_utf8(v).unwrap())
 389             .collect::<Vec<&str>>().join(":");
 390
 391         if let Some(expected_fingerprint) = expected_fingerprint {
 392             if expected_fingerprint.to_lowercase() == fp_string {
 393                 return (true, Some(fp_string));
 394             } else {
 395                 return (false, None);
 396             }
 397         }
 398
 399         // If we're on a TTY, query the user
 400         if interactive && tty::stdin_isatty() {
 401             println!("fingerprint: {}", fp_string);
 402             loop {
 403                 print!("Want to trust? (y/n): ");
 404                 let _ = std::io::stdout().flush();
 405                 let mut buf = [0u8; 1];
 406                 use std::io::Read;
 407                 match std::io::stdin().read_exact(&mut buf) {
 408                     Ok(()) => {
 409                         if buf[0] == b'y' || buf[0] == b'Y' {
 410                             return (true, Some(fp_string));
 411                         } else if buf[0] == b'n' || buf[0] == b'N' {
 412                             return (false, None);
 413                         }
 414                     }
 415                     Err(_) => {
 416                         return (false, None);
 417                     }
 418                 }
 419             }
 420         }
 421         (false, None)
 422     }
 423
 424     pub async fn request(&self, mut req: Request<Body>) -> Result<Value, Error> {
 425
 426         let client = self.client.clone();
 427
 428         let auth =  self.login().await?;
 429
 430         let enc_ticket = format!("PBSAuthCookie={}", percent_encode(auth.ticket.as_bytes(), DEFAULT_ENCODE_SET));
 431         req.headers_mut().insert("Cookie", HeaderValue::from_str(&enc_ticket).unwrap());
 432         req.headers_mut().insert("CSRFPreventionToken", HeaderValue::from_str(&auth.token).unwrap());
 433
 434         Self::api_request(client, req).await
 435     }
 436
 437     pub async fn get(
 438         &self,
 439         path: &str,
 440         data: Option<Value>,
 441     ) -> Result<Value, Error> {
 442         let req = Self::request_builder(&self.server, "GET", path, data).unwrap();
 443         self.request(req).await
 444     }
 445
 446     pub async fn delete(
 447         &mut self,
 448         path: &str,
 449         data: Option<Value>,
 450     ) -> Result<Value, Error> {
 451         let req = Self::request_builder(&self.server, "DELETE", path, data).unwrap();
 452         self.request(req).await
 453     }
 454
 455     pub async fn post(
 456         &mut self,
 457         path: &str,
 458         data: Option<Value>,
 459     ) -> Result<Value, Error> {
 460         let req = Self::request_builder(&self.server, "POST", path, data).unwrap();
 461         self.request(req).await
 462     }
 463
 464     pub async fn download(
 465         &mut self,
 466         path: &str,
 467         output: &mut (dyn Write + Send),
 468     ) ->  Result<(), Error> {
 469         let mut req = Self::request_builder(&self.server, "GET", path, None).unwrap();
 470
 471         let client = self.client.clone();
 472
 473         let auth = self.login().await?;
 474
 475         let enc_ticket = format!("PBSAuthCookie={}", percent_encode(auth.ticket.as_bytes(), DEFAULT_ENCODE_SET));
 476         req.headers_mut().insert("Cookie", HeaderValue::from_str(&enc_ticket).unwrap());
 477
 478         let resp = client.request(req).await?;
 479         let status = resp.status();
 480         if !status.is_success() {
 481             HttpClient::api_response(resp)
 482                 .map(|_| Err(format_err!("unknown error")))
 483                 .await?
 484         } else {
 485             resp.into_body()
 486                 .map_err(Error::from)
 487                 .try_fold(output, move |acc, chunk| async move {
 488                     acc.write_all(&chunk)?;
 489                     Ok::<_, Error>(acc)
 490                 })
 491                 .await?;
 492         }
 493         Ok(())
 494     }
 495
 496     pub async fn upload(
 497         &mut self,
 498         content_type: &str,
 499         body: Body,
 500         path: &str,
 501         data: Option<Value>,
 502     ) -> Result<Value, Error> {
 503
 504         let path = path.trim_matches('/');
 505         let mut url = format!("https://{}:8007/{}", &self.server, path);
 506
 507         if let Some(data) = data {
 508             let query = tools::json_object_to_query(data).unwrap();
 509             url.push('?');
 510             url.push_str(&query);
 511         }
 512
 513         let url: Uri = url.parse().unwrap();
 514
 515         let req = Request::builder()
 516             .method("POST")
 517             .uri(url)
 518             .header("User-Agent", "proxmox-backup-client/1.0")
 519             .header("Content-Type", content_type)
 520             .body(body).unwrap();
 521
 522         self.request(req).await
 523     }
 524
 525     pub async fn start_h2_connection(
 526         &self,
 527         mut req: Request<Body>,
 528         protocol_name: String,
 529     ) -> Result<(H2Client, futures::future::AbortHandle), Error> {
 530
 531         let auth = self.login().await?;
 532         let client = self.client.clone();
 533
 534         let enc_ticket = format!("PBSAuthCookie={}", percent_encode(auth.ticket.as_bytes(), DEFAULT_ENCODE_SET));
 535         req.headers_mut().insert("Cookie", HeaderValue::from_str(&enc_ticket).unwrap());
 536         req.headers_mut().insert("UPGRADE", HeaderValue::from_str(&protocol_name).unwrap());
 537
 538         let resp = client.request(req).await?;
 539         let status = resp.status();
 540
 541         if status != http::StatusCode::SWITCHING_PROTOCOLS {
 542             Self::api_response(resp).await?;
 543             bail!("unknown error");
 544         }
 545
 546         let upgraded = resp
 547             .into_body()
 548             .on_upgrade()
 549             .await?;
 550
 551         let max_window_size = (1 << 31) - 2;
 552
 553         let (h2, connection) = h2::client::Builder::new()
 554             .initial_connection_window_size(max_window_size)
 555             .initial_window_size(max_window_size)
 556             .max_frame_size(4*1024*1024)
 557             .handshake(upgraded)
 558             .await?;
 559
 560         let connection = connection
 561             .map_err(|_| panic!("HTTP/2.0 connection failed"));
 562
 563         let (connection, abort) = futures::future::abortable(connection);
 564         // A cancellable future returns an Option which is None when cancelled and
 565         // Some when it finished instead, since we don't care about the return type we
 566         // need to map it away:
 567         let connection = connection.map(|_| ());
 568
 569         // Spawn a new task to drive the connection state
 570         tokio::spawn(connection);
 571
 572         // Wait until the `SendRequest` handle has available capacity.
 573         let c = h2.ready().await?;
 574         Ok((H2Client::new(c), abort))
 575     }
 576
 577     async fn credentials(
 578         client: Client<HttpsConnector>,
 579         server: String,
 580         username: String,
 581         password: String,
 582     ) -> Result<AuthInfo, Error> {
 583         let data = json!({ "username": username, "password": password });
 584         let req = Self::request_builder(&server, "POST", "/api2/json/access/ticket", Some(data)).unwrap();
 585         let cred = Self::api_request(client, req).await?;
 586         let auth = AuthInfo {
 587             username: cred["data"]["username"].as_str().unwrap().to_owned(),
 588             ticket: cred["data"]["ticket"].as_str().unwrap().to_owned(),
 589             token: cred["data"]["CSRFPreventionToken"].as_str().unwrap().to_owned(),
 590         };
 591
 592         Ok(auth)
 593     }
 594
 595     async fn api_response(response: Response<Body>) -> Result<Value, Error> {
 596         let status = response.status();
 597         let data = hyper::body::to_bytes(response.into_body()).await?;
 598
 599         let text = String::from_utf8(data.to_vec()).unwrap();
 600         if status.is_success() {
 601             if text.is_empty() {
 602                 Ok(Value::Null)
 603             } else {
 604                 let value: Value = serde_json::from_str(&text)?;
 605                 Ok(value)
 606             }
 607         } else {
 608             bail!("HTTP Error {}: {}", status, text);
 609         }
 610     }
 611
 612     async fn api_request(
 613         client: Client<HttpsConnector>,
 614         req: Request<Body>
 615     ) -> Result<Value, Error> {
 616
 617         client.request(req)
 618             .map_err(Error::from)
 619             .and_then(Self::api_response)
 620             .await
 621     }
 622
 623     // Read-only access to server property
 624     pub fn server(&self) -> &str {
 625         &self.server
 626     }
 627
 628     pub fn request_builder(server: &str, method: &str, path: &str, data: Option<Value>) -> Result<Request<Body>, Error> {
 629         let path = path.trim_matches('/');
 630         let url: Uri = format!("https://{}:8007/{}", server, path).parse()?;
 631
 632         if let Some(data) = data {
 633             if method == "POST" {
 634                 let request = Request::builder()
 635                     .method(method)
 636                     .uri(url)
 637                     .header("User-Agent", "proxmox-backup-client/1.0")
 638                     .header(hyper::header::CONTENT_TYPE, "application/json")
 639                     .body(Body::from(data.to_string()))?;
 640                 return Ok(request);
 641             } else {
 642                 let query = tools::json_object_to_query(data)?;
 643                 let url: Uri = format!("https://{}:8007/{}?{}", server, path, query).parse()?;
 644                 let request = Request::builder()
 645                     .method(method)
 646                     .uri(url)
 647                     .header("User-Agent", "proxmox-backup-client/1.0")
 648                     .header(hyper::header::CONTENT_TYPE, "application/x-www-form-urlencoded")
 649                     .body(Body::empty())?;
 650                 return Ok(request);
 651             }
 652         }
 653
 654         let request = Request::builder()
 655             .method(method)
 656             .uri(url)
 657             .header("User-Agent", "proxmox-backup-client/1.0")
 658             .header(hyper::header::CONTENT_TYPE, "application/x-www-form-urlencoded")
 659             .body(Body::empty())?;
 660
 661         Ok(request)
 662     }
 663 }
 664
 665
 666 #[derive(Clone)]
 667 pub struct H2Client {
 668     h2: h2::client::SendRequest<bytes::Bytes>,
 669 }
 670
 671 impl H2Client {
 672
 673     pub fn new(h2: h2::client::SendRequest<bytes::Bytes>) -> Self {
 674         Self { h2 }
 675     }
 676
 677     pub async fn get(
 678         &self,
 679         path: &str,
 680         param: Option<Value>
 681     ) -> Result<Value, Error> {
 682         let req = Self::request_builder("localhost", "GET", path, param, None).unwrap();
 683         self.request(req).await
 684     }
 685
 686     pub async fn put(
 687         &self,
 688         path: &str,
 689         param: Option<Value>
 690     ) -> Result<Value, Error> {
 691         let req = Self::request_builder("localhost", "PUT", path, param, None).unwrap();
 692         self.request(req).await
 693     }
 694
 695     pub async fn post(
 696         &self,
 697         path: &str,
 698         param: Option<Value>
 699     ) -> Result<Value, Error> {
 700         let req = Self::request_builder("localhost", "POST", path, param, None).unwrap();
 701         self.request(req).await
 702     }
 703
 704     pub async fn download<W: Write + Send>(
 705         &self,
 706         path: &str,
 707         param: Option<Value>,
 708         mut output: W,
 709     ) -> Result<W, Error> {
 710         let request = Self::request_builder("localhost", "GET", path, param, None).unwrap();
 711
 712         let response_future = self.send_request(request, None).await?;
 713
 714         let resp = response_future.await?;
 715
 716         let status = resp.status();
 717         if !status.is_success() {
 718             H2Client::h2api_response(resp).await?; // raise error
 719             unreachable!();
 720         }
 721
 722         let mut body = resp.into_body();
 723         while let Some(chunk) = body.data().await {
 724             let chunk = chunk?;
 725             body.flow_control().release_capacity(chunk.len())?;
 726             output.write_all(&chunk)?;
 727         }
 728
 729         Ok(output)
 730     }
 731
 732     pub async fn upload(
 733         &self,
 734         method: &str, // POST or PUT
 735         path: &str,
 736         param: Option<Value>,
 737         content_type: &str,
 738         data: Vec<u8>,
 739     ) -> Result<Value, Error> {
 740         let request = Self::request_builder("localhost", method, path, param, Some(content_type)).unwrap();
 741
 742         let mut send_request = self.h2.clone().ready().await?;
 743
 744         let (response, stream) = send_request.send_request(request, false).unwrap();
 745
 746         PipeToSendStream::new(bytes::Bytes::from(data), stream).await?;
 747
 748         response
 749             .map_err(Error::from)
 750             .and_then(Self::h2api_response)
 751             .await
 752     }
 753
 754     async fn request(
 755         &self,
 756         request: Request<()>,
 757     ) -> Result<Value, Error> {
 758
 759         self.send_request(request, None)
 760             .and_then(move |response| {
 761                 response
 762                     .map_err(Error::from)
 763                     .and_then(Self::h2api_response)
 764             })
 765             .await
 766     }
 767
 768     pub fn send_request(
 769         &self,
 770         request: Request<()>,
 771         data: Option<bytes::Bytes>,
 772     ) -> impl Future<Output = Result<h2::client::ResponseFuture, Error>> {
 773
 774         self.h2.clone()
 775             .ready()
 776             .map_err(Error::from)
 777             .and_then(move |mut send_request| async move {
 778                 if let Some(data) = data {
 779                     let (response, stream) = send_request.send_request(request, false).unwrap();
 780                     PipeToSendStream::new(data, stream).await?;
 781                     Ok(response)
 782                 } else {
 783                     let (response, _stream) = send_request.send_request(request, true).unwrap();
 784                     Ok(response)
 785                 }
 786             })
 787     }
 788
 789     pub async fn h2api_response(
 790         response: Response<h2::RecvStream>,
 791     ) -> Result<Value, Error> {
 792         let status = response.status();
 793
 794         let (_head, mut body) = response.into_parts();
 795
 796         let mut data = Vec::new();
 797         while let Some(chunk) = body.data().await {
 798             let chunk = chunk?;
 799             // Whenever data is received, the caller is responsible for
 800             // releasing capacity back to the server once it has freed
 801             // the data from memory.
 802             // Let the server send more data.
 803             body.flow_control().release_capacity(chunk.len())?;
 804             data.extend(chunk);
 805         }
 806
 807         let text = String::from_utf8(data.to_vec()).unwrap();
 808         if status.is_success() {
 809             if text.is_empty() {
 810                 Ok(Value::Null)
 811             } else {
 812                 let mut value: Value = serde_json::from_str(&text)?;
 813                 if let Some(map) = value.as_object_mut() {
 814                     if let Some(data) = map.remove("data") {
 815                         return Ok(data);
 816                     }
 817                 }
 818                 bail!("got result without data property");
 819             }
 820         } else {
 821             bail!("HTTP Error {}: {}", status, text);
 822         }
 823     }
 824
 825     // Note: We always encode parameters with the url
 826     pub fn request_builder(
 827         server: &str,
 828         method: &str,
 829         path: &str,
 830         param: Option<Value>,
 831         content_type: Option<&str>,
 832     ) -> Result<Request<()>, Error> {
 833         let path = path.trim_matches('/');
 834
 835         let content_type = content_type.unwrap_or("application/x-www-form-urlencoded");
 836
 837         if let Some(param) = param {
 838             let query = tools::json_object_to_query(param)?;
 839             // We detected problem with hyper around 6000 characters - seo we try to keep on the safe side
 840             if query.len() > 4096 { bail!("h2 query data too large ({} bytes) - please encode data inside body", query.len()); }
 841             let url: Uri = format!("https://{}:8007/{}?{}", server, path, query).parse()?;
 842              let request = Request::builder()
 843                 .method(method)
 844                 .uri(url)
 845                 .header("User-Agent", "proxmox-backup-client/1.0")
 846                 .header(hyper::header::CONTENT_TYPE, content_type)
 847                 .body(())?;
 848             Ok(request)
 849         } else {
 850             let url: Uri = format!("https://{}:8007/{}", server, path).parse()?;
 851             let request = Request::builder()
 852                 .method(method)
 853                 .uri(url)
 854                 .header("User-Agent", "proxmox-backup-client/1.0")
 855                 .header(hyper::header::CONTENT_TYPE, content_type)
 856                 .body(())?;
 857
 858             Ok(request)
 859         }
 860     }
 861 }
 862
 863 #[derive(Clone)]
 864 pub struct HttpsConnector {
 865     http: HttpConnector,
 866     ssl_connector: std::sync::Arc<SslConnector>,
 867 }
 868
 869 impl HttpsConnector {
 870     pub fn with_connector(mut http: HttpConnector, ssl_connector: SslConnector) -> Self {
 871         http.enforce_http(false);
 872
 873         Self {
 874             http,
 875             ssl_connector: std::sync::Arc::new(ssl_connector),
 876         }
 877     }
 878 }
 879
 880 type MaybeTlsStream = EitherStream<
 881     tokio::net::TcpStream,
 882     tokio_openssl::SslStream<tokio::net::TcpStream>,
 883 >;
 884
 885 impl hyper::service::Service<Uri> for HttpsConnector {
 886     type Response = MaybeTlsStream;
 887     type Error = Error;
 888     type Future = std::pin::Pin<Box<
 889         dyn Future<Output = Result<Self::Response, Self::Error>> + Send + 'static
 890     >>;
 891
 892     fn poll_ready(&mut self, _: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
 893         // This connector is always ready, but others might not be.
 894         Poll::Ready(Ok(()))
 895     }
 896
 897     fn call(&mut self, dst: Uri) -> Self::Future {
 898         let mut this = self.clone();
 899         async move {
 900             let is_https = dst
 901                 .scheme()
 902                 .ok_or_else(|| format_err!("missing URL scheme"))?
 903                 == "https";
 904             let host = dst
 905                 .host()
 906                 .ok_or_else(|| format_err!("missing hostname in destination url?"))?
 907                 .to_string();
 908
 909             let config = this.ssl_connector.configure();
 910             let conn = this.http.call(dst).await?;
 911             if is_https {
 912                 let conn = tokio_openssl::connect(config?, &host, conn).await?;
 913                 Ok(MaybeTlsStream::Right(conn))
 914             } else {
 915                 Ok(MaybeTlsStream::Left(conn))
 916             }
 917         }.boxed()
 918     }
 919 }