Save and use authentication token

Cargo.toml

@@ -7,6 +7,11 @@ edition = "2018"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+anyhow = "1.0"
+dirs-next = "2.0"
 iced = { git = "https://github.com/hecrj/iced", rev = "fc4270f", features = ["debug", "tokio"] }
+hostname = "0.3"
 matrix-sdk = { git = "https://github.com/matrix-org/matrix-rust-sdk", rev = "27c6f30" }
-tokio = { version = "0.2", features = ["macros"] }
+serde = { version = "1.0", features = ["derive"] }
+tokio = "0.2"
+toml = "0.5"

src/main.rs

@@ -1,9 +1,22 @@
+extern crate dirs_next as dirs;
+
+use std::fs::Permissions;
+use std::os::unix::fs::PermissionsExt;
+
 use iced::Application;
 
 pub mod matrix;
 pub mod ui;
 
-#[tokio::main]
-async fn main() {
-    ui::Retrix::run(iced::Settings::default());
+fn main() -> Result<(), Box<dyn std::error::Error>> {
+    let config_dir = dirs::config_dir().unwrap().join("retrix");
+    // Make sure config dir exists and is not accessible by other users.
+    if !config_dir.is_dir() {
+        std::fs::create_dir(&config_dir)?;
+        std::fs::set_permissions(&config_dir, Permissions::from_mode(0o700))?;
+    }
+
+    ui::Retrix::run(iced::Settings::default());
+
+    Ok(())
 }

src/matrix.rs

@@ -1,6 +1,38 @@
-use matrix_sdk::{reqwest::Url, Client, Session, SyncSettings};
+use matrix_sdk::{
+    identifiers::DeviceId, identifiers::UserId, reqwest::Url, Client, ClientConfig, Session,
+    SyncSettings,
+};
+use serde::{Deserialize, Serialize};
 
-pub type Error = Box<dyn std::error::Error>;
+pub type Error = anyhow::Error;
+
+// Needed to be able to serialize `Session`s. Should be done with serde remote.
+#[derive(Debug, Clone, Deserialize, Serialize)]
+pub struct SessionWrapper {
+    access_token: String,
+    user_id: UserId,
+    device_id: Box<DeviceId>,
+}
+
+impl From<SessionWrapper> for Session {
+    fn from(s: SessionWrapper) -> Self {
+        Self {
+            access_token: s.access_token,
+            user_id: s.user_id,
+            device_id: s.device_id,
+        }
+    }
+}
+
+impl From<Session> for SessionWrapper {
+    fn from(s: Session) -> Self {
+        Self {
+            access_token: s.access_token,
+            user_id: s.user_id,
+            device_id: s.device_id,
+        }
+    }
+}
 
 pub async fn login(
     username: &str,
@@ -8,8 +40,15 @@ pub async fn login(
     server: &str,
 ) -> Result<(Client, Session), Error> {
     let url = Url::parse(server)?;
-    let client = Client::new(url)?;
+    let config = ClientConfig::new().store_path(&dirs::config_dir().unwrap().join("retrix"));
+    let client = Client::new_with_config(url, config)?;
 
+    let session = match get_session()? {
+        Some(session) => {
+            client.restore_login(session.clone()).await?;
+            session
+        }
+        None => {
             let response = client
                 .login(username, password, None, Some("retrix"))
                 .await?;
@@ -18,7 +57,40 @@ pub async fn login(
                 user_id: response.user_id,
                 device_id: response.device_id,
             };
-    client.sync(SyncSettings::new()).await;
+            write_session(session.clone())?;
+            session
+        }
+    };
+    client.sync_once(SyncSettings::new()).await?;
 
     Ok((client, session))
 }
+
+/// File path to store session data in
+fn session_path() -> std::path::PathBuf {
+    dirs::config_dir()
+        .unwrap()
+        .join("retrix")
+        .join("session.toml")
+}
+
+/// Read session data from config file
+fn get_session() -> Result<Option<Session>, Error> {
+    let path = session_path();
+    if !path.is_file() {
+        return Ok(None);
+    }
+    let session: SessionWrapper = toml::from_slice(&std::fs::read(path)?)?;
+    Ok(Some(session.into()))
+}
+
+/// Save session data to config file
+fn write_session(session: Session) -> Result<(), Error> {
+    let session: SessionWrapper = session.into();
+    let path = session_path();
+
+    let serialized = toml::to_string(&session)?;
+    std::fs::write(path, serialized)?;
+
+    Ok(())
+}

src/ui.rs

@@ -1,6 +1,6 @@
 use iced::{
     text_input::{self, TextInput},
-    Application, Button, Column, Command, Container, Element, Text,
+    Application, Button, Column, Command, Container, Element, Length, Row, Text,
 };
 
 use crate::matrix;
@@ -21,17 +21,23 @@ pub enum Retrix {
     LoggedIn {
         client: matrix_sdk::Client,
         session: matrix_sdk::Session,
+
+        rooms: Vec<matrix_sdk::Room>,
     },
 }
 
 #[derive(Debug, Clone)]
 pub enum Message {
+    // Login form messages
     SetUser(String),
     SetPassword(String),
     SetServer(String),
     Login,
     LoggedIn(matrix_sdk::Client, matrix_sdk::Session),
     SetError(String),
+
+    // Main state messages
+    ResetRooms(Vec<matrix_sdk::Room>),
 }
 
 impl Application for Retrix {
@@ -83,10 +89,32 @@ impl Application for Retrix {
                         },
                     );
                 }
-                Message::LoggedIn(client, session) => *self = Retrix::LoggedIn { client, session },
-            },
-            _ => (),
+                Message::LoggedIn(client, session) => {
+                    *self = Retrix::LoggedIn {
+                        client: client.clone(),
+                        session,
+                        rooms: Vec::new(),
+                    };
+                    let client = client.clone();
+                    Command::perform(
+                        async move {
+                            let mut list = Vec::new();
+                            for (id, room) in client.joined_rooms().read().await.iter() {
+                                let room = room.read().await;
+                                list.push(room.clone());
                             }
+                            list
+                        },
+                        |rooms| Message::ResetRooms(rooms),
+                    );
+                }
+                _ => (),
+            },
+            Retrix::LoggedIn { ref mut rooms, .. } => match message {
+                Message::ResetRooms(r) => *rooms = r,
+                _ => (),
+            },
+        };
         Command::none()
     }
 
@@ -102,6 +130,7 @@ impl Application for Retrix {
                 ref server,
                 ref error,
             } => {
+                // Login form
                 let mut content = Column::new()
                     .width(500.into())
                     .push(Text::new("Username"))
@@ -136,10 +165,16 @@ impl Application for Retrix {
                     .height(iced::Length::Fill)
                     .into()
             }
-            Retrix::LoggedIn {
-                ref client,
-                ref session,
-            } => Text::new(format!("Logged in to {}", session.user_id)).into(),
+            Retrix::LoggedIn { ref rooms, .. } => {
+                //let mut root_row = Row::new().width(Length::Fill).height(Length::Fill);
+                let mut room_col = Column::new().width(400.into()).height(Length::Fill);
+                for room in rooms {
+                    room_col = room_col.push(Text::new(room.display_name()));
+                }
+                room_col.into()
+                //root_row = root_row.push(room_col);
+                //root_row.into()
+            }
         }
     }
 }