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use std::convert::TryInto;
use std::error::Error;
use std::str::Utf8Error;
use cookie::Cookie;
use cookie::CookieJar;
use serde::Serialize;
pub mod auth;
use auth::AuthData;
use auth::AuthStatus;
use auth::GetNonceResponse;
pub mod backups;
use backups::BackupWrapper;
pub mod progress;
use progress::ProgressState;
pub mod util;
pub struct Client {
host: String,
port: u16,
tls: bool,
base_url: String,
password: String,
auth: Option<AuthData>,
cookies: CookieJar,
http: reqwest::Client
}
impl Client {
pub fn new(host: &str, port: u16, tls: bool, password: &str) -> Result<Self, Box<dyn Error>> {
let mut headers = reqwest::header::HeaderMap::new();
headers.insert(reqwest::header::USER_AGENT, "reqwest/0.10.8".try_into()?);
headers.insert(reqwest::header::CONNECTION, "keep-alive".try_into()?);
headers.insert(reqwest::header::ACCEPT, "*/*".try_into()?);
let mut client = Self{
host: host.to_string(),
port: port,
tls: tls,
base_url: "".to_string(),
password: password.to_string(),
auth: None,
cookies: CookieJar::new(),
http: reqwest::Client::builder()
.gzip(true)
.default_headers(headers)
.build()?
};
client.build_base_url();
Ok(client)
}
fn build_base_url(&mut self) {
let protocol = match self.tls {
true => "https",
false => "http"
};
self.base_url = format!("{}://{}:{}", protocol, self.host, self.port);
}
fn build_url(&self, path: impl AsRef<str>) -> String {
format!("{}/{}", self.base_url, path.as_ref()).to_string()
}
fn add_cookies(&self, request: reqwest::RequestBuilder) -> reqwest::RequestBuilder {
let cookies = self.cookies.iter().map(|c| c.to_string()).collect::<Vec<String>>();
if(cookies.len() == 0) {
request
} else {
request.header(reqwest::header::COOKIE, cookies.join("; "))
}
}
pub fn get(&self, path: impl AsRef<str>) -> reqwest::RequestBuilder {
let url = self.build_url(path);
let mut request = self.http.get(&url);
request = match &self.auth {
Some(auth) => request.header("X-XSRF-Token", &auth.token),
None => request
};
self.add_cookies(request)
}
pub async fn get_short(&self, path: impl AsRef<str>) -> Result<reqwest::Response, Box<dyn Error>> {
Ok(self.get(path).send().await?.error_for_status()?)
}
pub fn post(&self, path: impl AsRef<str>) -> reqwest::RequestBuilder {
let url = self.build_url(path);
let mut request = self.http.post(&url);
request = match &self.auth {
Some(auth) => request.header("X-XSRF-Token", &auth.token),
None => request
};
self.add_cookies(request)
}
pub async fn post_short<T: Serialize + ?Sized>(&self, path: impl AsRef<str>, form: &T) -> Result<reqwest::Response, Box<dyn Error>> {
Ok(self.post(path)
.header("Content-Type", "application/x-www-form-urlencoded")
.form(form)
.send()
.await?
.error_for_status()?
)
}
pub async fn check_auth(&self) -> Result<AuthStatus, Box<dyn Error>> {
let response = self.get_short("").await?;
if(response.headers().contains_key("WWW-Authenticate")) {
return Ok(AuthStatus::BasicRequired)
}
if(response.url().path() == "/login.html") {
return Ok(AuthStatus::PasswordWrong)
}
Ok(AuthStatus::OK)
}
fn save_cookie(&mut self, cookie: reqwest::cookie::Cookie) -> Result<(), Utf8Error> {
let name = cookie.name().to_string();
let value = percent_encoding::percent_decode_str(cookie.value()).decode_utf8()?.to_string();
self.cookies.add(Cookie::new(name, value));
Ok(())
}
fn save_cookies_from_response(&mut self, response: &reqwest::Response) -> Result<(), Utf8Error> {
for cookie in response.cookies() {
self.save_cookie(cookie)?;
}
Ok(())
}
pub async fn login(&mut self) -> Result<(), Box<dyn Error + '_>> {
match self.check_auth().await? {
AuthStatus::OK => return Ok(()),
_ => ()
};
let response = self.http.post(&self.build_url("login.cgi"))
.header("Content-Type", "application/x-www-form-urlencoded")
.body("get-nonce=1")
.send()
.await?
.error_for_status()?;
self.save_cookies_from_response(&response)?;
let token = match self.cookies.get("xsrf-token") {
Some(v) => v,
None => return Err(std::io::Error::from(std::io::ErrorKind::NotFound).into())
};
let body = &response.bytes().await?;
self.auth = Some(GetNonceResponse::from_bytes(&body[3..])?.try_into()?);
let mut auth = self.auth.as_mut().unwrap();
auth.token = token.value().to_string();
let login_form = auth.obfuscate_password(&self.password);
let response = self.post_short("login.cgi", &login_form).await?;
self.save_cookies_from_response(&response)?;
if(self.cookies.get("session-auth").is_none()) {
return Err(std::io::Error::from(std::io::ErrorKind::NotFound).into());
}
Ok(())
}
pub async fn fetch_backups(&self) -> Result<Vec<BackupWrapper>, Box<dyn Error>> {
let body = self.get_short("api/v1/backups")
.await?
.bytes()
.await?;
let mut response: Vec<BackupWrapper> = serde_json::from_slice(&body[3..])?;
match self.fetch_progress_state().await? {
Some(progress) => {
for backup in response.iter_mut() {
if(backup.backup.id == progress.backup_id) {
backup.backup.progress = Some(progress);
break;
}
}
},
None => ()
};
Ok(response)
}
pub async fn fetch_progress_state(&self) -> Result<Option<ProgressState>, Box<dyn Error>> {
let body = match self.get_short("api/v1/progressstate").await {
Ok(v) => v.bytes().await?,
Err(_) => return Ok(None)
};
let response = serde_json::from_slice(&body[3..])?;
Ok(response)
}
}