bitque/actors/websocket-actor/src/lib.rs
2021-08-13 23:03:52 +02:00

277 lines
8.3 KiB
Rust

use actix::{Actor, ActorContext, Addr, AsyncContext, Handler, Recipient, StreamHandler};
use actix_web::web::{self, Data};
use actix_web::{get, Error, HttpRequest, HttpResponse};
use actix_web_actors::ws;
use common::log::*;
use common::{actix_web, actix_web_actors};
use database_actor::projects::LoadCurrentProject;
use database_actor::user_projects::CurrentUserProject;
use database_actor::DbExecutor;
use futures::executor::block_on as wait;
use jirs_data::msg::{WsMsgInvitation, WsMsgSession};
use jirs_data::{Project, User, UserProject, WsMsg};
use mail_actor::MailExecutor;
use crate::handlers::*;
use crate::server::{InnerMsg, WsServer};
pub mod handlers;
pub mod prelude;
pub mod server;
pub type WsResult = std::result::Result<Option<WsMsg>, WsMsg>;
trait WsMessageSender {
fn send_msg(&mut self, msg: &jirs_data::WsMsg);
}
pub struct WebSocketActor {
db: Data<Addr<DbExecutor>>,
mail: Data<Addr<MailExecutor>>,
addr: Addr<WsServer>,
hi: Data<Addr<highlight_actor::HighlightActor>>,
current_user: Option<jirs_data::User>,
current_user_project: Option<jirs_data::UserProject>,
current_project: Option<jirs_data::Project>,
}
pub type WsCtx = ws::WebsocketContext<WebSocketActor>;
impl actix::Actor for WebSocketActor {
type Context = WsCtx;
}
impl WsMessageSender for ws::WebsocketContext<WebSocketActor> {
fn send_msg(&mut self, msg: &WsMsg) {
match bincode::serialize(msg) {
Err(err) => {
common::log::error!("{}", err);
}
Ok(v) => self.binary(v),
}
}
}
impl Handler<InnerMsg> for WebSocketActor {
type Result = ();
fn handle(&mut self, msg: InnerMsg, ctx: &mut <Self as Actor>::Context) -> Self::Result {
if let InnerMsg::Transfer(msg) = msg {
ctx.send_msg(&msg)
};
}
}
impl WebSocketActor {
fn broadcast(&self, msg: &WsMsg) {
let project_id = match self.require_user_project() {
Ok(up) => up.project_id,
_ => return,
};
self.addr
.do_send(InnerMsg::BroadcastToChannel(project_id, msg.clone()));
}
fn handle_ws_msg(
&mut self,
msg: WsMsg,
ctx: &mut <WebSocketActor as Actor>::Context,
) -> WsResult {
if msg != WsMsg::Ping && msg != WsMsg::Pong {
debug!("incoming message: {:?}", msg);
}
match msg {
WsMsg::Ping => return Ok(Some(WsMsg::Pong)),
WsMsg::Pong => return Ok(Some(WsMsg::Ping)),
WsMsg::Session(WsMsgSession::AuthorizeLoad(uuid)) => {
return Ok(self.handle_msg(CheckAuthToken { token: uuid }, ctx)?)
}
WsMsg::Invitation(WsMsgInvitation::InvitationAcceptRequest(invitation_token)) => {
return Ok(self.handle_msg(AcceptInvitation { invitation_token }, ctx)?)
}
_ => {}
};
let fut = match msg {
WsMsg::Project(m) => self.exec(m),
WsMsg::Issue(m) => self.exec(m),
WsMsg::IssueStatus(m) => self.exec(m),
WsMsg::Comment(m) => self.exec(m),
WsMsg::Invitation(m) => self.exec(m),
WsMsg::Epic(m) => self.exec(m),
// user projects
WsMsg::UserProjectsLoad => self.exec(LoadUserProjects),
WsMsg::UserProjectSetCurrent(user_project_id) => self.exec(SetCurrentUserProject {
id: user_project_id,
}),
WsMsg::User(m) => self.exec(m),
WsMsg::Message(m) => self.exec(m),
WsMsg::Session(m) => self.exec(m),
// hi
WsMsg::HighlightCode(lang, code) => self.exec(hi::HighlightCode(lang, code)),
// else fail
_ => {
error!("No handle for {:?} specified", msg);
return Ok(None);
}
};
let msg = wait(fut)?;
if msg.is_some() && msg != Some(WsMsg::Pong) {
info!("sending message {:?}", msg);
}
Ok(msg)
}
async fn join_channel(&self, addr: Recipient<InnerMsg>) {
info!("joining channel...");
info!(" current user {:?}", self.current_user);
let user = match self.current_user.as_ref() {
None => return,
Some(u) => u,
};
let project_id = match self.require_user_project() {
Ok(user_project) => user_project.project_id,
_ => return,
};
match self
.addr
.send(InnerMsg::Join(project_id, user.id, addr))
.await
{
Err(e) => common::log::error!("{:?}", e),
_ => common::log::info!(" joined channel"),
};
}
fn require_user(&self) -> Result<&User, WsMsg> {
self.current_user
.as_ref()
.ok_or(WsMsgSession::AuthorizeExpired.into())
}
fn require_user_project(&self) -> Result<&UserProject, WsMsg> {
self.current_user_project
.as_ref()
.ok_or(WsMsgSession::AuthorizeExpired.into())
}
fn load_user_project(&self) -> Result<UserProject, WsMsg> {
let user_id = self.require_user()?.id;
match wait(self.db.send(CurrentUserProject { user_id })) {
Ok(Ok(user_project)) => Ok(user_project),
Ok(Err(e)) => {
error!("load_user_project encounter service error {:?}", e);
Err(WsMsgSession::AuthorizeExpired.into())
}
Err(e) => {
error!("load_user_project encounter mailbox error {}", e);
Err(WsMsgSession::AuthorizeExpired.into())
}
}
}
fn load_project(&self) -> Result<Project, WsMsg> {
let project_id = self.require_user_project()?.project_id;
match wait(self.db.send(LoadCurrentProject { project_id })) {
Ok(Ok(project)) => Ok(project),
Ok(Err(e)) => {
error!("{:?}", e);
Err(WsMsgSession::AuthorizeExpired.into())
}
Err(e) => {
error!("{:?}", e);
Err(WsMsgSession::AuthorizeExpired.into())
}
}
}
}
impl StreamHandler<Result<ws::Message, ws::ProtocolError>> for WebSocketActor {
fn handle(
&mut self,
msg: Result<ws::Message, ws::ProtocolError>,
ctx: &mut <Self as Actor>::Context,
) {
match msg {
Ok(ws::Message::Ping(msg)) => ctx.pong(&msg),
Ok(ws::Message::Text(text)) => ctx.text(text),
Ok(ws::Message::Binary(bin)) => {
let ws_msg: bincode::Result<jirs_data::WsMsg> =
bincode::deserialize(bin.to_vec().as_slice());
let msg = match ws_msg {
Ok(m) => m,
_ => return,
};
match self.handle_ws_msg(msg, ctx) {
Ok(Some(msg)) => ctx.send_msg(&msg),
Err(e) => ctx.send_msg(&e),
_ => (),
};
}
_ => (),
}
}
fn finished(&mut self, ctx: &mut <Self as Actor>::Context) {
info!("Disconnected");
if let (Some(user), Some(up)) = (
self.current_user.as_ref(),
self.current_user_project.as_ref(),
) {
self.addr.do_send(InnerMsg::Leave(
up.project_id,
user.id,
ctx.address().recipient::<InnerMsg>(),
));
}
ctx.stop()
}
}
pub trait WsHandler<Message>
where
Self: actix::Actor<Context = WsCtx>,
{
fn handle_msg(&mut self, msg: Message, _ctx: &mut <Self as Actor>::Context) -> WsResult;
}
#[async_trait::async_trait]
pub trait AsyncHandler<Message>
where
Self: actix::Actor<Context = WsCtx>,
{
async fn exec(&mut self, msg: Message) -> WsResult;
}
#[get("/ws/")]
pub async fn index(
req: HttpRequest,
stream: web::Payload,
db: Data<Addr<DbExecutor>>,
mail: Data<Addr<MailExecutor>>,
ws_server: Data<Addr<WsServer>>,
hi: Data<Addr<highlight_actor::HighlightActor>>,
) -> Result<HttpResponse, Error> {
ws::start(
WebSocketActor {
db,
mail,
hi,
current_user: None,
current_user_project: None,
current_project: None,
addr: ws_server.get_ref().clone(),
},
&req,
stream,
)
}