228 lines
7.2 KiB
Rust
228 lines
7.2 KiB
Rust
use failure::*;
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use http::Uri;
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use hyper::Body;
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use hyper::client::Client;
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use hyper::rt::{self, Future};
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use http::Request;
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use futures::stream::Stream;
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use serde_json::{Value};
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use url::percent_encoding::{percent_encode, DEFAULT_ENCODE_SET};
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use crate::tools::tty;
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/// HTTP(S) API client
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pub struct HttpClient {
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username: String,
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server: String,
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ticket: Option<String>,
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token: Option<String>
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}
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impl HttpClient {
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pub fn new(server: &str, username: &str) -> Self {
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Self {
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server: String::from(server),
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username: String::from(username),
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ticket: None,
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token: None,
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}
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}
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fn get_password(&self) -> Result<String, Error> {
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use std::env::VarError::*;
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match std::env::var("PBS_PASSWORD") {
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Ok(p) => return Ok(p),
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Err(NotUnicode(_)) => bail!("PBS_PASSWORD contains bad characters"),
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Err(NotPresent) => {
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// Try another method
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}
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}
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// If we're on a TTY, query the user for a password
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if tty::stdin_isatty() {
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return Ok(String::from_utf8(tty::read_password("Password: ")?)?);
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}
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bail!("no password input mechanism available");
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}
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fn run_request(
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request: Request<Body>,
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) -> Result<Value, Error> {
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let mut builder = native_tls::TlsConnector::builder();
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// FIXME: We need a CLI option for this!
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builder.danger_accept_invalid_certs(true);
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let tlsconnector = builder.build()?;
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let mut httpc = hyper::client::HttpConnector::new(1);
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httpc.enforce_http(false); // we want https...
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let mut https = hyper_tls::HttpsConnector::from((httpc, tlsconnector));
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https.https_only(true); // force it!
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let client = Client::builder().build::<_, Body>(https);
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let (tx, rx) = std::sync::mpsc::channel();
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let future = client
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.request(request)
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.map_err(Error::from)
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.and_then(|resp| {
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let status = resp.status();
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resp.into_body().concat2().map_err(Error::from)
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.and_then(move |data| {
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let text = String::from_utf8(data.to_vec()).unwrap();
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if status.is_success() {
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if text.len() > 0 {
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let value: Value = serde_json::from_str(&text)?;
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Ok(value)
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} else {
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Ok(Value::Null)
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}
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} else {
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bail!("HTTP Error {}: {}", status, text);
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}
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})
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})
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.then(move |res| {
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tx.send(res).unwrap();
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Ok(())
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});
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// drop client, else client keeps connectioon open (keep-alive feature)
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drop(client);
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rt::run(future);
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rx.recv().unwrap()
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}
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pub fn get(&mut self, path: &str) -> Result<Value, Error> {
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let path = path.trim_matches('/');
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let url: Uri = format!("https://{}:8007/{}", self.server, path).parse()?;
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let (ticket, _token) = self.login()?;
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let enc_ticket = percent_encode(ticket.as_bytes(), DEFAULT_ENCODE_SET).to_string();
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let request = Request::builder()
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.method("GET")
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.uri(url)
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.header("User-Agent", "proxmox-backup-client/1.0")
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.header("Cookie", format!("PBSAuthCookie={}", enc_ticket))
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.body(Body::empty())?;
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Self::run_request(request)
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}
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pub fn post(&mut self, path: &str) -> Result<Value, Error> {
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let path = path.trim_matches('/');
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let url: Uri = format!("https://{}:8007/{}", self.server, path).parse()?;
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let (ticket, token) = self.login()?;
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let enc_ticket = percent_encode(ticket.as_bytes(), DEFAULT_ENCODE_SET).to_string();
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let request = Request::builder()
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.method("POST")
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.uri(url)
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.header("User-Agent", "proxmox-backup-client/1.0")
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.header("Cookie", format!("PBSAuthCookie={}", enc_ticket))
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.header("CSRFPreventionToken", token)
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.header(hyper::header::CONTENT_TYPE, "application/x-www-form-urlencoded")
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.body(Body::empty())?;
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Self::run_request(request)
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}
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pub fn post_json(&mut self, path: &str, data: Value) -> Result<Value, Error> {
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let path = path.trim_matches('/');
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let url: Uri = format!("https://{}:8007/{}", self.server, path).parse()?;
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let (ticket, token) = self.login()?;
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let enc_ticket = percent_encode(ticket.as_bytes(), DEFAULT_ENCODE_SET).to_string();
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let request = Request::builder()
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.method("POST")
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.uri(url)
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.header("User-Agent", "proxmox-backup-client/1.0")
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.header("Cookie", format!("PBSAuthCookie={}", enc_ticket))
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.header("CSRFPreventionToken", token)
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.header(hyper::header::CONTENT_TYPE, "application/json")
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.body(Body::from(data.to_string()))?;
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Self::run_request(request)
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}
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pub fn login(&mut self) -> Result<(String, String), Error> {
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if let Some(ref ticket) = self.ticket {
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if let Some(ref token) = self.token {
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return Ok((ticket.clone(), token.clone()));
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}
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}
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let url: Uri = format!("https://{}:8007/{}", self.server, "/api2/json/access/ticket").parse()?;
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let password = self.get_password()?;
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let query = url::form_urlencoded::Serializer::new(String::new())
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.append_pair("username", &self.username)
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.append_pair("password", &password)
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.finish();
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let request = Request::builder()
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.method("POST")
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.uri(url)
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.header("User-Agent", "proxmox-backup-client/1.0")
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.header("Content-Type", "application/x-www-form-urlencoded")
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.body(Body::from(query))?;
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let auth_res = Self::run_request(request)?;
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let ticket = match auth_res["data"]["ticket"].as_str() {
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Some(t) => t,
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None => bail!("got unexpected respose for login request."),
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};
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let token = match auth_res["data"]["CSRFPreventionToken"].as_str() {
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Some(t) => t,
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None => bail!("got unexpected respose for login request."),
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};
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self.ticket = Some(ticket.to_owned());
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self.token = Some(token.to_owned());
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Ok((ticket.to_owned(), token.to_owned()))
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}
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pub fn upload(&mut self, content_type: &str, body: Body, path: &str) -> Result<Value, Error> {
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let path = path.trim_matches('/');
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let url: Uri = format!("https://{}:8007/{}", self.server, path).parse()?;
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let (ticket, token) = self.login()?;
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let enc_ticket = percent_encode(ticket.as_bytes(), DEFAULT_ENCODE_SET).to_string();
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let request = Request::builder()
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.method("POST")
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.uri(url)
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.header("User-Agent", "proxmox-backup-client/1.0")
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.header("Cookie", format!("PBSAuthCookie={}", enc_ticket))
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.header("CSRFPreventionToken", token)
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.header("Content-Type", content_type)
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.body(body)?;
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Self::run_request(request)
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}
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}
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