src/client/http_client.rs

   1 use std::io::Write;
   2 use std::task::{Context, Poll};
   3 use std::sync::{Arc, Mutex, RwLock};
   4 use std::time::Duration;
   5
   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     api::error::HttpError,
  20     sys::linux::tty,
  21     tools::{
  22         fs::{file_get_json, replace_file, CreateOptions},
  23     }
  24 };
  25
  26 use super::pipe_to_stream::PipeToSendStream;
  27 use crate::api2::types::Userid;
  28 use crate::tools::async_io::EitherStream;
  29 use crate::tools::{self, BroadcastFuture, DEFAULT_ENCODE_SET};
  30
  31 #[derive(Clone)]
  32 pub struct AuthInfo {
  33     pub userid: Userid,
  34     pub ticket: String,
  35     pub token: String,
  36 }
  37
  38 pub struct HttpClientOptions {
  39     prefix: Option<String>,
  40     password: Option<String>,
  41     fingerprint: Option<String>,
  42     interactive: bool,
  43     ticket_cache: bool,
  44     fingerprint_cache: bool,
  45     verify_cert: bool,
  46 }
  47
  48 impl HttpClientOptions {
  49
  50     pub fn new() -> Self {
  51         Self {
  52             prefix: None,
  53             password: None,
  54             fingerprint: None,
  55             interactive: false,
  56             ticket_cache: false,
  57             fingerprint_cache: false,
  58             verify_cert: true,
  59         }
  60     }
  61
  62     pub fn prefix(mut self, prefix: Option<String>) -> Self {
  63         self.prefix = prefix;
  64         self
  65     }
  66
  67     pub fn password(mut self, password: Option<String>) -> Self {
  68         self.password = password;
  69         self
  70     }
  71
  72     pub fn fingerprint(mut self, fingerprint: Option<String>) -> Self {
  73         self.fingerprint = fingerprint;
  74         self
  75     }
  76
  77     pub fn interactive(mut self, interactive: bool) -> Self {
  78         self.interactive = interactive;
  79         self
  80     }
  81
  82     pub fn ticket_cache(mut self, ticket_cache: bool) -> Self {
  83         self.ticket_cache = ticket_cache;
  84         self
  85     }
  86
  87     pub fn fingerprint_cache(mut self, fingerprint_cache: bool) -> Self {
  88         self.fingerprint_cache = fingerprint_cache;
  89         self
  90     }
  91
  92     pub fn verify_cert(mut self, verify_cert: bool) -> Self {
  93         self.verify_cert = verify_cert;
  94         self
  95     }
  96 }
  97
  98 /// HTTP(S) API client
  99 pub struct HttpClient {
 100     client: Client<HttpsConnector>,
 101     server: String,
 102     port: u16,
 103     fingerprint: Arc<Mutex<Option<String>>>,
 104     first_auth: BroadcastFuture<()>,
 105     auth: Arc<RwLock<AuthInfo>>,
 106     ticket_abort: futures::future::AbortHandle,
 107     _options: HttpClientOptions,
 108 }
 109
 110 /// Delete stored ticket data (logout)
 111 pub fn delete_ticket_info(prefix: &str, server: &str, username: &Userid) -> Result<(), Error> {
 112
 113     let base = BaseDirectories::with_prefix(prefix)?;
 114
 115     // usually /run/user/<uid>/...
 116     let path = base.place_runtime_file("tickets")?;
 117
 118     let mode = nix::sys::stat::Mode::from_bits_truncate(0o0600);
 119
 120     let mut data = file_get_json(&path, Some(json!({})))?;
 121
 122     if let Some(map) = data[server].as_object_mut() {
 123         map.remove(username.as_str());
 124     }
 125
 126     replace_file(path, data.to_string().as_bytes(), CreateOptions::new().perm(mode))?;
 127
 128     Ok(())
 129 }
 130
 131 fn store_fingerprint(prefix: &str, server: &str, fingerprint: &str) -> Result<(), Error> {
 132
 133     let base = BaseDirectories::with_prefix(prefix)?;
 134
 135     // usually ~/.config/<prefix>/fingerprints
 136     let path = base.place_config_file("fingerprints")?;
 137
 138     let raw = match std::fs::read_to_string(&path) {
 139         Ok(v) => v,
 140         Err(err) => {
 141             if err.kind() == std::io::ErrorKind::NotFound {
 142                 String::new()
 143             } else {
 144                 bail!("unable to read fingerprints from {:?} - {}", path, err);
 145             }
 146         }
 147     };
 148
 149     let mut result = String::new();
 150
 151     raw.split('\n').for_each(|line| {
 152         let items: Vec<String> = line.split_whitespace().map(String::from).collect();
 153         if items.len() == 2 {
 154             if &items[0] == server {
 155                 // found, add later with new fingerprint
 156             } else {
 157                 result.push_str(line);
 158                 result.push('\n');
 159             }
 160         }
 161     });
 162
 163     result.push_str(server);
 164     result.push(' ');
 165     result.push_str(fingerprint);
 166     result.push('\n');
 167
 168     replace_file(path, result.as_bytes(), CreateOptions::new())?;
 169
 170     Ok(())
 171 }
 172
 173 fn load_fingerprint(prefix: &str, server: &str) -> Option<String> {
 174
 175     let base = BaseDirectories::with_prefix(prefix).ok()?;
 176
 177     // usually ~/.config/<prefix>/fingerprints
 178     let path = base.place_config_file("fingerprints").ok()?;
 179
 180     let raw = std::fs::read_to_string(&path).ok()?;
 181
 182     for line in raw.split('\n') {
 183         let items: Vec<String> = line.split_whitespace().map(String::from).collect();
 184         if items.len() == 2 && &items[0] == server {
 185             return Some(items[1].clone());
 186         }
 187     }
 188
 189     None
 190 }
 191
 192 fn store_ticket_info(prefix: &str, server: &str, username: &str, ticket: &str, token: &str) -> Result<(), Error> {
 193
 194     let base = BaseDirectories::with_prefix(prefix)?;
 195
 196     // usually /run/user/<uid>/...
 197     let path = base.place_runtime_file("tickets")?;
 198
 199     let mode = nix::sys::stat::Mode::from_bits_truncate(0o0600);
 200
 201     let mut data = file_get_json(&path, Some(json!({})))?;
 202
 203     let now = proxmox::tools::time::epoch_i64();
 204
 205     data[server][username] = json!({ "timestamp": now, "ticket": ticket, "token": token});
 206
 207     let mut new_data = json!({});
 208
 209     let ticket_lifetime = tools::ticket::TICKET_LIFETIME - 60;
 210
 211     let empty = serde_json::map::Map::new();
 212     for (server, info) in data.as_object().unwrap_or(&empty) {
 213         for (_user, uinfo) in info.as_object().unwrap_or(&empty) {
 214             if let Some(timestamp) = uinfo["timestamp"].as_i64() {
 215                 let age = now - timestamp;
 216                 if age < ticket_lifetime {
 217                     new_data[server][username] = uinfo.clone();
 218                 }
 219             }
 220         }
 221     }
 222
 223     replace_file(path, new_data.to_string().as_bytes(), CreateOptions::new().perm(mode))?;
 224
 225     Ok(())
 226 }
 227
 228 fn load_ticket_info(prefix: &str, server: &str, userid: &Userid) -> Option<(String, String)> {
 229     let base = BaseDirectories::with_prefix(prefix).ok()?;
 230
 231     // usually /run/user/<uid>/...
 232     let path = base.place_runtime_file("tickets").ok()?;
 233     let data = file_get_json(&path, None).ok()?;
 234     let now = proxmox::tools::time::epoch_i64();
 235     let ticket_lifetime = tools::ticket::TICKET_LIFETIME - 60;
 236     let uinfo = data[server][userid.as_str()].as_object()?;
 237     let timestamp = uinfo["timestamp"].as_i64()?;
 238     let age = now - timestamp;
 239
 240     if age < ticket_lifetime {
 241         let ticket = uinfo["ticket"].as_str()?;
 242         let token = uinfo["token"].as_str()?;
 243         Some((ticket.to_owned(), token.to_owned()))
 244     } else {
 245         None
 246     }
 247 }
 248
 249 impl HttpClient {
 250     pub fn new(
 251         server: &str,
 252         port: u16,
 253         userid: &Userid,
 254         mut options: HttpClientOptions,
 255     ) -> Result<Self, Error> {
 256
 257         let verified_fingerprint = Arc::new(Mutex::new(None));
 258
 259         let mut fingerprint = options.fingerprint.take();
 260
 261         if fingerprint.is_some() {
 262             // do not store fingerprints passed via options in cache
 263             options.fingerprint_cache = false;
 264         } else if options.fingerprint_cache && options.prefix.is_some() {
 265             fingerprint = load_fingerprint(options.prefix.as_ref().unwrap(), server);
 266         }
 267
 268         let mut ssl_connector_builder = SslConnector::builder(SslMethod::tls()).unwrap();
 269
 270         if options.verify_cert {
 271             let server = server.to_string();
 272             let verified_fingerprint = verified_fingerprint.clone();
 273             let interactive = options.interactive;
 274             let fingerprint_cache = options.fingerprint_cache;
 275             let prefix = options.prefix.clone();
 276             ssl_connector_builder.set_verify_callback(openssl::ssl::SslVerifyMode::PEER, move |valid, ctx| {
 277                 let (valid, fingerprint) = Self::verify_callback(valid, ctx, fingerprint.clone(), interactive);
 278                 if valid {
 279                     if let Some(fingerprint) = fingerprint {
 280                         if fingerprint_cache && prefix.is_some() {
 281                             if let Err(err) = store_fingerprint(
 282                                 prefix.as_ref().unwrap(), &server, &fingerprint) {
 283                                 eprintln!("{}", err);
 284                             }
 285                         }
 286                         *verified_fingerprint.lock().unwrap() = Some(fingerprint);
 287                     }
 288                 }
 289                 valid
 290             });
 291         } else {
 292             ssl_connector_builder.set_verify(openssl::ssl::SslVerifyMode::NONE);
 293         }
 294
 295         let mut httpc = hyper::client::HttpConnector::new();
 296         httpc.set_nodelay(true); // important for h2 download performance!
 297         httpc.enforce_http(false); // we want https...
 298
 299         let https = HttpsConnector::with_connector(httpc, ssl_connector_builder.build());
 300
 301         let client = Client::builder()
 302         //.http2_initial_stream_window_size( (1 << 31) - 2)
 303         //.http2_initial_connection_window_size( (1 << 31) - 2)
 304             .build::<_, Body>(https);
 305
 306         let password = options.password.take();
 307         let use_ticket_cache = options.ticket_cache && options.prefix.is_some();
 308
 309         let password = if let Some(password) = password {
 310             password
 311         } else {
 312             let mut ticket_info = None;
 313             if use_ticket_cache {
 314                 ticket_info = load_ticket_info(options.prefix.as_ref().unwrap(), server, userid);
 315             }
 316             if let Some((ticket, _token)) = ticket_info {
 317                 ticket
 318             } else {
 319                 Self::get_password(userid, options.interactive)?
 320             }
 321         };
 322
 323         let auth = Arc::new(RwLock::new(AuthInfo {
 324             userid: userid.clone(),
 325             ticket: password.clone(),
 326             token: "".to_string(),
 327         }));
 328
 329         let server2 = server.to_string();
 330         let client2 = client.clone();
 331         let auth2 = auth.clone();
 332         let prefix2 = options.prefix.clone();
 333
 334         let renewal_future = async move {
 335             loop {
 336                 tokio::time::delay_for(Duration::new(60*15,  0)).await; // 15 minutes
 337                 let (userid, ticket) = {
 338                     let authinfo = auth2.read().unwrap().clone();
 339                     (authinfo.userid, authinfo.ticket)
 340                 };
 341                 match Self::credentials(client2.clone(), server2.clone(), port, userid, ticket).await {
 342                     Ok(auth) => {
 343                         if use_ticket_cache & &prefix2.is_some() {
 344                             let _ = store_ticket_info(prefix2.as_ref().unwrap(), &server2, &auth.userid.to_string(), &auth.ticket, &auth.token);
 345                         }
 346                         *auth2.write().unwrap() = auth;
 347                     },
 348                     Err(err) => {
 349                         eprintln!("re-authentication failed: {}", err);
 350                         return;
 351                     }
 352                 }
 353             }
 354         };
 355
 356         let (renewal_future, ticket_abort) = futures::future::abortable(renewal_future);
 357
 358         let login_future = Self::credentials(
 359             client.clone(),
 360             server.to_owned(),
 361             port,
 362             userid.to_owned(),
 363             password.to_owned(),
 364         ).map_ok({
 365             let server = server.to_string();
 366             let prefix = options.prefix.clone();
 367             let authinfo = auth.clone();
 368
 369             move |auth| {
 370                 if use_ticket_cache & &prefix.is_some() {
 371                     let _ = store_ticket_info(prefix.as_ref().unwrap(), &server, &auth.userid.to_string(), &auth.ticket, &auth.token);
 372                 }
 373                 *authinfo.write().unwrap() = auth;
 374                 tokio::spawn(renewal_future);
 375             }
 376         });
 377
 378         Ok(Self {
 379             client,
 380             server: String::from(server),
 381             port,
 382             fingerprint: verified_fingerprint,
 383             auth,
 384             ticket_abort,
 385             first_auth: BroadcastFuture::new(Box::new(login_future)),
 386             _options: options,
 387         })
 388     }
 389
 390     /// Login
 391     ///
 392     /// Login is done on demand, so this is only required if you need
 393     /// access to authentication data in 'AuthInfo'.
 394     pub async fn login(&self) -> Result<AuthInfo, Error> {
 395         self.first_auth.listen().await?;
 396         let authinfo = self.auth.read().unwrap();
 397         Ok(authinfo.clone())
 398     }
 399
 400     /// Returns the optional fingerprint passed to the new() constructor.
 401     pub fn fingerprint(&self) -> Option<String> {
 402         (*self.fingerprint.lock().unwrap()).clone()
 403     }
 404
 405     fn get_password(username: &Userid, interactive: bool) -> Result<String, Error> {
 406         // If we're on a TTY, query the user for a password
 407         if interactive && tty::stdin_isatty() {
 408             let msg = format!("Password for \"{}\": ", username);
 409             return Ok(String::from_utf8(tty::read_password(&msg)?)?);
 410         }
 411
 412         bail!("no password input mechanism available");
 413     }
 414
 415     fn verify_callback(
 416         valid: bool, ctx:
 417         &mut X509StoreContextRef,
 418         expected_fingerprint: Option<String>,
 419         interactive: bool,
 420     ) -> (bool, Option<String>) {
 421         if valid { return (true, None); }
 422
 423         let cert = match ctx.current_cert() {
 424             Some(cert) => cert,
 425             None => return (false, None),
 426         };
 427
 428         let depth = ctx.error_depth();
 429         if depth != 0 { return (false, None); }
 430
 431         let fp = match cert.digest(openssl::hash::MessageDigest::sha256()) {
 432             Ok(fp) => fp,
 433             Err(_) => return (false, None), // should not happen
 434         };
 435         let fp_string = proxmox::tools::digest_to_hex(&fp);
 436         let fp_string = fp_string.as_bytes().chunks(2).map(|v| std::str::from_utf8(v).unwrap())
 437             .collect::<Vec<&str>>().join(":");
 438
 439         if let Some(expected_fingerprint) = expected_fingerprint {
 440             if expected_fingerprint.to_lowercase() == fp_string {
 441                 return (true, Some(fp_string));
 442             } else {
 443                 return (false, None);
 444             }
 445         }
 446
 447         // If we're on a TTY, query the user
 448         if interactive && tty::stdin_isatty() {
 449             println!("fingerprint: {}", fp_string);
 450             loop {
 451                 print!("Are you sure you want to continue connecting? (y/n): ");
 452                 let _ = std::io::stdout().flush();
 453                 use std::io::{BufRead, BufReader};
 454                 let mut line = String::new();
 455                 match BufReader::new(std::io::stdin()).read_line(&mut line) {
 456                     Ok(_) => {
 457                         let trimmed = line.trim();
 458                         if trimmed == "y" || trimmed == "Y" {
 459                             return (true, Some(fp_string));
 460                         } else if trimmed == "n" || trimmed == "N" {
 461                             return (false, None);
 462                         } else {
 463                             continue;
 464                         }
 465                     }
 466                     Err(_) => return (false, None),
 467                 }
 468             }
 469         }
 470         (false, None)
 471     }
 472
 473     pub async fn request(&self, mut req: Request<Body>) -> Result<Value, Error> {
 474
 475         let client = self.client.clone();
 476
 477         let auth =  self.login().await?;
 478
 479         let enc_ticket = format!("PBSAuthCookie={}", percent_encode(auth.ticket.as_bytes(), DEFAULT_ENCODE_SET));
 480         req.headers_mut().insert("Cookie", HeaderValue::from_str(&enc_ticket).unwrap());
 481         req.headers_mut().insert("CSRFPreventionToken", HeaderValue::from_str(&auth.token).unwrap());
 482
 483         Self::api_request(client, req).await
 484     }
 485
 486     pub async fn get(
 487         &self,
 488         path: &str,
 489         data: Option<Value>,
 490     ) -> Result<Value, Error> {
 491         let req = Self::request_builder(&self.server, self.port, "GET", path, data)?;
 492         self.request(req).await
 493     }
 494
 495     pub async fn delete(
 496         &mut self,
 497         path: &str,
 498         data: Option<Value>,
 499     ) -> Result<Value, Error> {
 500         let req = Self::request_builder(&self.server, self.port, "DELETE", path, data)?;
 501         self.request(req).await
 502     }
 503
 504     pub async fn post(
 505         &mut self,
 506         path: &str,
 507         data: Option<Value>,
 508     ) -> Result<Value, Error> {
 509         let req = Self::request_builder(&self.server, self.port, "POST", path, data)?;
 510         self.request(req).await
 511     }
 512
 513     pub async fn download(
 514         &mut self,
 515         path: &str,
 516         output: &mut (dyn Write + Send),
 517     ) -> Result<(), Error> {
 518         let mut req = Self::request_builder(&self.server, self.port, "GET", path, None)?;
 519
 520         let client = self.client.clone();
 521
 522         let auth = self.login().await?;
 523
 524         let enc_ticket = format!("PBSAuthCookie={}", percent_encode(auth.ticket.as_bytes(), DEFAULT_ENCODE_SET));
 525         req.headers_mut().insert("Cookie", HeaderValue::from_str(&enc_ticket).unwrap());
 526
 527         let resp = client.request(req).await?;
 528         let status = resp.status();
 529         if !status.is_success() {
 530             HttpClient::api_response(resp)
 531                 .map(|_| Err(format_err!("unknown error")))
 532                 .await?
 533         } else {
 534             resp.into_body()
 535                 .map_err(Error::from)
 536                 .try_fold(output, move |acc, chunk| async move {
 537                     acc.write_all(&chunk)?;
 538                     Ok::<_, Error>(acc)
 539                 })
 540                 .await?;
 541         }
 542         Ok(())
 543     }
 544
 545     pub async fn upload(
 546         &mut self,
 547         content_type: &str,
 548         body: Body,
 549         path: &str,
 550         data: Option<Value>,
 551     ) -> Result<Value, Error> {
 552
 553         let path = path.trim_matches('/');
 554         let mut url = format!("https://{}:{}/{}", &self.server, self.port, path);
 555
 556         if let Some(data) = data {
 557             let query = tools::json_object_to_query(data).unwrap();
 558             url.push('?');
 559             url.push_str(&query);
 560         }
 561
 562         let url: Uri = url.parse().unwrap();
 563
 564         let req = Request::builder()
 565             .method("POST")
 566             .uri(url)
 567             .header("User-Agent", "proxmox-backup-client/1.0")
 568             .header("Content-Type", content_type)
 569             .body(body).unwrap();
 570
 571         self.request(req).await
 572     }
 573
 574     pub async fn start_h2_connection(
 575         &self,
 576         mut req: Request<Body>,
 577         protocol_name: String,
 578     ) -> Result<(H2Client, futures::future::AbortHandle), Error> {
 579
 580         let auth = self.login().await?;
 581         let client = self.client.clone();
 582
 583         let enc_ticket = format!("PBSAuthCookie={}", percent_encode(auth.ticket.as_bytes(), DEFAULT_ENCODE_SET));
 584         req.headers_mut().insert("Cookie", HeaderValue::from_str(&enc_ticket).unwrap());
 585         req.headers_mut().insert("UPGRADE", HeaderValue::from_str(&protocol_name).unwrap());
 586
 587         let resp = client.request(req).await?;
 588         let status = resp.status();
 589
 590         if status != http::StatusCode::SWITCHING_PROTOCOLS {
 591             Self::api_response(resp).await?;
 592             bail!("unknown error");
 593         }
 594
 595         let upgraded = resp
 596             .into_body()
 597             .on_upgrade()
 598             .await?;
 599
 600         let max_window_size = (1 << 31) - 2;
 601
 602         let (h2, connection) = h2::client::Builder::new()
 603             .initial_connection_window_size(max_window_size)
 604             .initial_window_size(max_window_size)
 605             .max_frame_size(4*1024*1024)
 606             .handshake(upgraded)
 607             .await?;
 608
 609         let connection = connection
 610             .map_err(|_| panic!("HTTP/2.0 connection failed"));
 611
 612         let (connection, abort) = futures::future::abortable(connection);
 613         // A cancellable future returns an Option which is None when cancelled and
 614         // Some when it finished instead, since we don't care about the return type we
 615         // need to map it away:
 616         let connection = connection.map(|_| ());
 617
 618         // Spawn a new task to drive the connection state
 619         tokio::spawn(connection);
 620
 621         // Wait until the `SendRequest` handle has available capacity.
 622         let c = h2.ready().await?;
 623         Ok((H2Client::new(c), abort))
 624     }
 625
 626     async fn credentials(
 627         client: Client<HttpsConnector>,
 628         server: String,
 629         port: u16,
 630         username: Userid,
 631         password: String,
 632     ) -> Result<AuthInfo, Error> {
 633         let data = json!({ "username": username, "password": password });
 634         let req = Self::request_builder(&server, port, "POST", "/api2/json/access/ticket", Some(data))?;
 635         let cred = Self::api_request(client, req).await?;
 636         let auth = AuthInfo {
 637             userid: cred["data"]["username"].as_str().unwrap().parse()?,
 638             ticket: cred["data"]["ticket"].as_str().unwrap().to_owned(),
 639             token: cred["data"]["CSRFPreventionToken"].as_str().unwrap().to_owned(),
 640         };
 641
 642         Ok(auth)
 643     }
 644
 645     async fn api_response(response: Response<Body>) -> Result<Value, Error> {
 646         let status = response.status();
 647         let data = hyper::body::to_bytes(response.into_body()).await?;
 648
 649         let text = String::from_utf8(data.to_vec()).unwrap();
 650         if status.is_success() {
 651             if text.is_empty() {
 652                 Ok(Value::Null)
 653             } else {
 654                 let value: Value = serde_json::from_str(&text)?;
 655                 Ok(value)
 656             }
 657         } else {
 658             Err(Error::from(HttpError::new(status, text)))
 659         }
 660     }
 661
 662     async fn api_request(
 663         client: Client<HttpsConnector>,
 664         req: Request<Body>
 665     ) -> Result<Value, Error> {
 666
 667         client.request(req)
 668             .map_err(Error::from)
 669             .and_then(Self::api_response)
 670             .await
 671     }
 672
 673     // Read-only access to server property
 674     pub fn server(&self) -> &str {
 675         &self.server
 676     }
 677
 678     pub fn port(&self) -> u16 {
 679         self.port
 680     }
 681
 682     pub fn request_builder(server: &str, port: u16, method: &str, path: &str, data: Option<Value>) -> Result<Request<Body>, Error> {
 683         let path = path.trim_matches('/');
 684         let url: Uri = format!("https://{}:{}/{}", server, port, path).parse()?;
 685
 686         if let Some(data) = data {
 687             if method == "POST" {
 688                 let request = Request::builder()
 689                     .method(method)
 690                     .uri(url)
 691                     .header("User-Agent", "proxmox-backup-client/1.0")
 692                     .header(hyper::header::CONTENT_TYPE, "application/json")
 693                     .body(Body::from(data.to_string()))?;
 694                 return Ok(request);
 695             } else {
 696                 let query = tools::json_object_to_query(data)?;
 697                 let url: Uri = format!("https://{}:{}/{}?{}", server, port, path, query).parse()?;
 698                 let request = Request::builder()
 699                     .method(method)
 700                     .uri(url)
 701                     .header("User-Agent", "proxmox-backup-client/1.0")
 702                     .header(hyper::header::CONTENT_TYPE, "application/x-www-form-urlencoded")
 703                     .body(Body::empty())?;
 704                 return Ok(request);
 705             }
 706         }
 707
 708         let request = Request::builder()
 709             .method(method)
 710             .uri(url)
 711             .header("User-Agent", "proxmox-backup-client/1.0")
 712             .header(hyper::header::CONTENT_TYPE, "application/x-www-form-urlencoded")
 713             .body(Body::empty())?;
 714
 715         Ok(request)
 716     }
 717 }
 718
 719 impl Drop for HttpClient {
 720     fn drop(&mut self) {
 721         self.ticket_abort.abort();
 722     }
 723 }
 724
 725
 726 #[derive(Clone)]
 727 pub struct H2Client {
 728     h2: h2::client::SendRequest<bytes::Bytes>,
 729 }
 730
 731 impl H2Client {
 732
 733     pub fn new(h2: h2::client::SendRequest<bytes::Bytes>) -> Self {
 734         Self { h2 }
 735     }
 736
 737     pub async fn get(
 738         &self,
 739         path: &str,
 740         param: Option<Value>
 741     ) -> Result<Value, Error> {
 742         let req = Self::request_builder("localhost", "GET", path, param, None).unwrap();
 743         self.request(req).await
 744     }
 745
 746     pub async fn put(
 747         &self,
 748         path: &str,
 749         param: Option<Value>
 750     ) -> Result<Value, Error> {
 751         let req = Self::request_builder("localhost", "PUT", path, param, None).unwrap();
 752         self.request(req).await
 753     }
 754
 755     pub async fn post(
 756         &self,
 757         path: &str,
 758         param: Option<Value>
 759     ) -> Result<Value, Error> {
 760         let req = Self::request_builder("localhost", "POST", path, param, None).unwrap();
 761         self.request(req).await
 762     }
 763
 764     pub async fn download<W: Write + Send>(
 765         &self,
 766         path: &str,
 767         param: Option<Value>,
 768         mut output: W,
 769     ) -> Result<(), Error> {
 770         let request = Self::request_builder("localhost", "GET", path, param, None).unwrap();
 771
 772         let response_future = self.send_request(request, None).await?;
 773
 774         let resp = response_future.await?;
 775
 776         let status = resp.status();
 777         if !status.is_success() {
 778             H2Client::h2api_response(resp).await?; // raise error
 779             unreachable!();
 780         }
 781
 782         let mut body = resp.into_body();
 783         while let Some(chunk) = body.data().await {
 784             let chunk = chunk?;
 785             body.flow_control().release_capacity(chunk.len())?;
 786             output.write_all(&chunk)?;
 787         }
 788
 789         Ok(())
 790     }
 791
 792     pub async fn upload(
 793         &self,
 794         method: &str, // POST or PUT
 795         path: &str,
 796         param: Option<Value>,
 797         content_type: &str,
 798         data: Vec<u8>,
 799     ) -> Result<Value, Error> {
 800         let request = Self::request_builder("localhost", method, path, param, Some(content_type)).unwrap();
 801
 802         let mut send_request = self.h2.clone().ready().await?;
 803
 804         let (response, stream) = send_request.send_request(request, false).unwrap();
 805
 806         PipeToSendStream::new(bytes::Bytes::from(data), stream).await?;
 807
 808         response
 809             .map_err(Error::from)
 810             .and_then(Self::h2api_response)
 811             .await
 812     }
 813
 814     async fn request(
 815         &self,
 816         request: Request<()>,
 817     ) -> Result<Value, Error> {
 818
 819         self.send_request(request, None)
 820             .and_then(move |response| {
 821                 response
 822                     .map_err(Error::from)
 823                     .and_then(Self::h2api_response)
 824             })
 825             .await
 826     }
 827
 828     pub fn send_request(
 829         &self,
 830         request: Request<()>,
 831         data: Option<bytes::Bytes>,
 832     ) -> impl Future<Output = Result<h2::client::ResponseFuture, Error>> {
 833
 834         self.h2.clone()
 835             .ready()
 836             .map_err(Error::from)
 837             .and_then(move |mut send_request| async move {
 838                 if let Some(data) = data {
 839                     let (response, stream) = send_request.send_request(request, false).unwrap();
 840                     PipeToSendStream::new(data, stream).await?;
 841                     Ok(response)
 842                 } else {
 843                     let (response, _stream) = send_request.send_request(request, true).unwrap();
 844                     Ok(response)
 845                 }
 846             })
 847     }
 848
 849     pub async fn h2api_response(
 850         response: Response<h2::RecvStream>,
 851     ) -> Result<Value, Error> {
 852         let status = response.status();
 853
 854         let (_head, mut body) = response.into_parts();
 855
 856         let mut data = Vec::new();
 857         while let Some(chunk) = body.data().await {
 858             let chunk = chunk?;
 859             // Whenever data is received, the caller is responsible for
 860             // releasing capacity back to the server once it has freed
 861             // the data from memory.
 862             // Let the server send more data.
 863             body.flow_control().release_capacity(chunk.len())?;
 864             data.extend(chunk);
 865         }
 866
 867         let text = String::from_utf8(data.to_vec()).unwrap();
 868         if status.is_success() {
 869             if text.is_empty() {
 870                 Ok(Value::Null)
 871             } else {
 872                 let mut value: Value = serde_json::from_str(&text)?;
 873                 if let Some(map) = value.as_object_mut() {
 874                     if let Some(data) = map.remove("data") {
 875                         return Ok(data);
 876                     }
 877                 }
 878                 bail!("got result without data property");
 879             }
 880         } else {
 881             Err(Error::from(HttpError::new(status, text)))
 882         }
 883     }
 884
 885     // Note: We always encode parameters with the url
 886     pub fn request_builder(
 887         server: &str,
 888         method: &str,
 889         path: &str,
 890         param: Option<Value>,
 891         content_type: Option<&str>,
 892     ) -> Result<Request<()>, Error> {
 893         let path = path.trim_matches('/');
 894
 895         let content_type = content_type.unwrap_or("application/x-www-form-urlencoded");
 896
 897         if let Some(param) = param {
 898             let query = tools::json_object_to_query(param)?;
 899             // We detected problem with hyper around 6000 characters - seo we try to keep on the safe side
 900             if query.len() > 4096 { bail!("h2 query data too large ({} bytes) - please encode data inside body", query.len()); }
 901             let url: Uri = format!("https://{}:8007/{}?{}", server, path, query).parse()?;
 902              let request = Request::builder()
 903                 .method(method)
 904                 .uri(url)
 905                 .header("User-Agent", "proxmox-backup-client/1.0")
 906                 .header(hyper::header::CONTENT_TYPE, content_type)
 907                 .body(())?;
 908             Ok(request)
 909         } else {
 910             let url: Uri = format!("https://{}:8007/{}", server, path).parse()?;
 911             let request = Request::builder()
 912                 .method(method)
 913                 .uri(url)
 914                 .header("User-Agent", "proxmox-backup-client/1.0")
 915                 .header(hyper::header::CONTENT_TYPE, content_type)
 916                 .body(())?;
 917
 918             Ok(request)
 919         }
 920     }
 921 }
 922
 923 #[derive(Clone)]
 924 pub struct HttpsConnector {
 925     http: HttpConnector,
 926     ssl_connector: std::sync::Arc<SslConnector>,
 927 }
 928
 929 impl HttpsConnector {
 930     pub fn with_connector(mut http: HttpConnector, ssl_connector: SslConnector) -> Self {
 931         http.enforce_http(false);
 932
 933         Self {
 934             http,
 935             ssl_connector: std::sync::Arc::new(ssl_connector),
 936         }
 937     }
 938 }
 939
 940 type MaybeTlsStream = EitherStream<
 941     tokio::net::TcpStream,
 942     tokio_openssl::SslStream<tokio::net::TcpStream>,
 943 >;
 944
 945 impl hyper::service::Service<Uri> for HttpsConnector {
 946     type Response = MaybeTlsStream;
 947     type Error = Error;
 948     type Future = std::pin::Pin<Box<
 949         dyn Future<Output = Result<Self::Response, Self::Error>> + Send + 'static
 950     >>;
 951
 952     fn poll_ready(&mut self, _: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
 953         // This connector is always ready, but others might not be.
 954         Poll::Ready(Ok(()))
 955     }
 956
 957     fn call(&mut self, dst: Uri) -> Self::Future {
 958         let mut this = self.clone();
 959         async move {
 960             let is_https = dst
 961                 .scheme()
 962                 .ok_or_else(|| format_err!("missing URL scheme"))?
 963                 == "https";
 964             let host = dst
 965                 .host()
 966                 .ok_or_else(|| format_err!("missing hostname in destination url?"))?
 967                 .to_string();
 968
 969             let config = this.ssl_connector.configure();
 970             let conn = this.http.call(dst).await?;
 971             if is_https {
 972                 let conn = tokio_openssl::connect(config?, &host, conn).await?;
 973                 Ok(MaybeTlsStream::Right(conn))
 974             } else {
 975                 Ok(MaybeTlsStream::Left(conn))
 976             }
 977         }.boxed()
 978     }
 979 }