428 lines
13 KiB
Rust
428 lines
13 KiB
Rust
//! Crate `ruma_client` is a [Matrix](https://matrix.org/) client library.
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//!
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//! # Usage
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//!
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//! Begin by creating a `Client` type, usually using the `https` method for a client that supports
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//! secure connections, and then logging in:
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//!
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//! ```no_run
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//! use futures::Future;
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//! use ruma_client::Client;
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//!
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//! let homeserver_url = "https://example.com".parse().unwrap();
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//! let client = Client::https(homeserver_url, None).unwrap();
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//!
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//! let work = client
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//! .log_in("@alice:example.com".to_string(), "secret".to_string(), None)
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//! .and_then(|session| {
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//! // You're now logged in! Write the session to a file if you want to restore it later.
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//! // Then start using the API!
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//! # Ok::<(), ruma_client::Error>(())
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//! });
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//!
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//! // Start `work` on a futures runtime...
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//! ```
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//!
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//! You can also pass an existing session to the `Client` constructor to restore a previous session
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//! rather than calling `log_in`.
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//!
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//! For the standard use case of synchronizing with the homeserver (i.e. getting all the latest
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//! events), use the `Client::sync`:
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//!
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//! ```no_run
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//! # use futures::{Future, Stream};
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//! # use ruma_client::Client;
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//! # let homeserver_url = "https://example.com".parse().unwrap();
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//! # let client = Client::https(homeserver_url, None).unwrap();
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//! let work = client.sync(None, None, true).map(|response| {
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//! // Do something with the data in the response...
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//! # Ok::<(), ruma_client::Error>(())
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//! });
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//!
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//! // Start `work` on a futures runtime...
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//! ```
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//!
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//! The `Client` type also provides methods for registering a new account if you don't already have
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//! one with the given homeserver.
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//!
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//! Beyond these basic convenience methods, `ruma-client` gives you access to the entire Matrix
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//! client-server API via the `api` module. Each leaf module under this tree of modules contains
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//! the necessary types for one API endpoint. Simply call the module's `call` method, passing it
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//! the logged in `Client` and the relevant `Request` type. `call` will return a future that will
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//! resolve to the relevant `Response` type.
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//!
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//! For example:
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//!
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//! ```no_run
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//! # use futures::Future;
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//! # use ruma_client::Client;
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//! # let homeserver_url = "https://example.com".parse().unwrap();
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//! # let client = Client::https(homeserver_url, None).unwrap();
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//! use std::convert::TryFrom;
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//!
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//! use ruma_client::api::r0::alias::get_alias;
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//! use ruma_identifiers::{RoomAliasId, RoomId};
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//!
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//! let request = get_alias::Request {
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//! room_alias: RoomAliasId::try_from("#example_room:example.com").unwrap(),
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//! };
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//!
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//! let work = get_alias::call(client, request).and_then(|response| {
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//! assert_eq!(response.room_id, RoomId::try_from("!n8f893n9:example.com").unwrap());
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//! # Ok::<(), ruma_client::Error>(())
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//! });
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//!
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//! // Start `work` on a futures runtime...
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//! ```
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#![feature(async_await, async_closure)]
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#![deny(
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missing_copy_implementations,
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missing_debug_implementations,
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missing_docs,
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//warnings
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)]
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#![warn(
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clippy::empty_line_after_outer_attr,
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clippy::expl_impl_clone_on_copy,
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clippy::if_not_else,
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clippy::items_after_statements,
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clippy::match_same_arms,
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clippy::mem_forget,
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clippy::missing_docs_in_private_items,
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clippy::mut_mut,
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clippy::needless_borrow,
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clippy::needless_continue,
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clippy::single_match_else,
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clippy::unicode_not_nfc,
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clippy::use_self,
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clippy::used_underscore_binding,
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clippy::wrong_pub_self_convention,
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clippy::wrong_self_convention
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)]
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use std::{
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convert::TryFrom,
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str::FromStr,
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sync::{Arc, Mutex},
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};
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use futures::{
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future::Future,
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stream::{self, Stream, TryStream, TryStreamExt as _},
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};
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use http::Response as HttpResponse;
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use hyper::{
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client::{connect::Connect, HttpConnector},
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Client as HyperClient, Uri,
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};
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#[cfg(feature = "hyper-tls")]
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use hyper_tls::HttpsConnector;
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#[cfg(feature = "hyper-tls")]
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use native_tls::Error as NativeTlsError;
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use ruma_api::Endpoint;
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use url::Url;
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use crate::error::InnerError;
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pub use crate::{error::Error, session::Session};
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pub use ruma_events as events;
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pub use ruma_identifiers as identifiers;
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/// Matrix client-server API endpoints.
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//pub mod api;
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mod error;
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mod session;
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/// A client for the Matrix client-server API.
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#[derive(Debug)]
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pub struct Client<C: Connect>(Arc<ClientData<C>>);
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/// Data contained in Client's Rc
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#[derive(Debug)]
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struct ClientData<C>
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where
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C: Connect,
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{
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/// The URL of the homeserver to connect to.
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homeserver_url: Url,
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/// The underlying HTTP client.
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hyper: HyperClient<C>,
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/// User session data.
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session: Mutex<Option<Session>>,
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}
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/// Non-secured variant of the client (using plain HTTP requests)
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pub type HttpClient = Client<HttpConnector>;
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impl HttpClient {
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/// Creates a new client for making HTTP requests to the given homeserver.
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pub fn new(homeserver_url: Url, session: Option<Session>) -> Self {
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Self(Arc::new(ClientData {
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homeserver_url,
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hyper: HyperClient::builder().keep_alive(true).build_http(),
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session: Mutex::new(session),
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}))
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}
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/// Get a copy of the current `Session`, if any.
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///
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/// Useful for serializing and persisting the session to be restored later.
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pub fn session(&self) -> Option<Session> {
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self.0
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.session
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.lock()
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.expect("session mutex was poisoned")
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.clone()
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}
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}
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/// Secured variant of the client (using HTTPS requests)
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#[cfg(feature = "tls")]
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pub type HttpsClient = Client<HttpsConnector<HttpConnector>>;
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#[cfg(feature = "tls")]
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impl HttpsClient {
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/// Creates a new client for making HTTPS requests to the given homeserver.
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pub fn https(homeserver_url: Url, session: Option<Session>) -> Result<Self, NativeTlsError> {
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let connector = HttpsConnector::new(4)?;
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Ok(Self(Arc::new(ClientData {
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homeserver_url,
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hyper: HyperClient::builder().keep_alive(true).build(connector),
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session: Mutex::new(session),
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})))
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}
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}
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impl<C> Client<C>
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where
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C: Connect + 'static,
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{
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/// Creates a new client using the given `hyper::Client`.
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///
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/// This allows the user to configure the details of HTTP as desired.
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pub fn custom(
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hyper_client: HyperClient<C>,
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homeserver_url: Url,
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session: Option<Session>,
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) -> Self {
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Self(Arc::new(ClientData {
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homeserver_url,
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hyper: hyper_client,
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session: Mutex::new(session),
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}))
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}
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/// Log in with a username and password.
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///
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/// In contrast to api::r0::session::login::call(), this method stores the
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/// session data returned by the endpoint in this client, instead of
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/// returning it.
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pub async fn log_in(
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&self,
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user: String,
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password: String,
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device_id: Option<String>,
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) -> Result<Session, Error> {
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use ruma_client_api::r0::session::login;
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let response = self
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.request(login::Request {
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address: None,
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login_type: login::LoginType::Password,
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medium: None,
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device_id,
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password,
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user,
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})
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.await?;
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let session = Session {
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access_token: response.access_token,
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device_id: response.device_id,
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user_id: response.user_id,
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};
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*self.0.session.lock().unwrap() = Some(session.clone());
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Ok(session)
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}
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/// Register as a guest. In contrast to api::r0::account::register::call(),
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/// this method stores the session data returned by the endpoint in this
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/// client, instead of returning it.
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pub async fn register_guest(&self) -> Result<Session, Error> {
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use ruma_client_api::r0::account::register;
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let response = self
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.request(register::Request {
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auth: None,
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bind_email: None,
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device_id: None,
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initial_device_display_name: None,
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kind: Some(register::RegistrationKind::Guest),
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password: None,
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username: None,
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})
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.await?;
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let session = Session {
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access_token: response.access_token,
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device_id: response.device_id,
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user_id: response.user_id,
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};
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*self.0.session.lock().unwrap() = Some(session.clone());
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Ok(session)
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}
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/// Register as a new user on this server.
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///
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/// In contrast to api::r0::account::register::call(), this method stores
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/// the session data returned by the endpoint in this client, instead of
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/// returning it.
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///
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/// The username is the local part of the returned user_id. If it is
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/// omitted from this request, the server will generate one.
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pub async fn register_user(
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&self,
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username: Option<String>,
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password: String,
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) -> Result<Session, Error> {
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use ruma_client_api::r0::account::register;
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let response = self
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.request(register::Request {
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auth: None,
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bind_email: None,
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device_id: None,
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initial_device_display_name: None,
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kind: Some(register::RegistrationKind::User),
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password: Some(password),
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username,
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})
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.await?;
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let session = Session {
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access_token: response.access_token,
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device_id: response.device_id,
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user_id: response.user_id,
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};
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*self.0.session.lock().unwrap() = Some(session.clone());
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Ok(session)
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}
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/// Convenience method that represents repeated calls to the sync_events endpoint as a stream.
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///
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/// If the since parameter is None, the first Item might take a significant time to arrive and
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/// be deserialized, because it contains all events that have occured in the whole lifetime of
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/// the logged-in users account and are visible to them.
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pub fn sync(
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&self,
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filter: Option<ruma_client_api::r0::sync::sync_events::Filter>,
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since: Option<String>,
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set_presence: bool,
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) -> impl Stream<Item = Result<ruma_client_api::r0::sync::sync_events::Response, Error>>
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+ TryStream<Ok = ruma_client_api::r0::sync::sync_events::Response, Error = Error>
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{
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use ruma_client_api::r0::sync::sync_events;
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// TODO: Is this really the way TryStreams are supposed to work?
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#[derive(Debug, PartialEq, Eq)]
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enum State {
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InitialSync,
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Since(String),
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Errored,
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}
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let client = self.clone();
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let set_presence = if set_presence {
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None
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} else {
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Some(sync_events::SetPresence::Offline)
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};
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let initial_state = match since {
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Some(s) => State::Since(s),
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None => State::InitialSync,
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};
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stream::unfold(initial_state, move |state| {
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let client = client.clone();
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let filter = filter.clone();
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async move {
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let since = match state {
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State::Errored => return None,
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State::Since(s) => Some(s),
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State::InitialSync => None,
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};
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let res = client
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.request(sync_events::Request {
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filter,
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since,
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full_state: None,
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set_presence: set_presence.clone(),
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timeout: None,
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})
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.await;
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match res {
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Ok(response) => {
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let next_batch_clone = response.next_batch.clone();
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Some((Ok(response), State::Since(next_batch_clone)))
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}
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Err(e) => Some((Err(e.into()), State::Errored)),
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}
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}
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})
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}
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/// Makes a request to a Matrix API endpoint.
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pub fn request<Request: Endpoint>(
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&self,
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request: Request,
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) -> impl Future<Output = Result<Request::Response, Error>> {
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let client = self.0.clone();
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async move {
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let mut url = client.homeserver_url.clone();
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let mut hyper_request = request.try_into()?.map(hyper::Body::from);
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{
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let uri = hyper_request.uri();
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url.set_path(uri.path());
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url.set_query(uri.query());
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if Request::METADATA.requires_authentication {
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if let Some(ref session) = *client.session.lock().unwrap() {
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url.query_pairs_mut()
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.append_pair("access_token", &session.access_token);
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} else {
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return Err(Error(InnerError::AuthenticationRequired));
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}
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}
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}
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*hyper_request.uri_mut() = Uri::from_str(url.as_ref())?;
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let hyper_response = client.hyper.request(hyper_request).await?;
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let (head, body) = hyper_response.into_parts();
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let full_response =
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HttpResponse::from_parts(head, body.try_concat().await?.as_ref().to_owned());
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Ok(Request::Response::try_from(full_response)?)
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}
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}
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}
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impl<C: Connect> Clone for Client<C> {
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fn clone(&self) -> Self {
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Self(self.0.clone())
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}
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}
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