From e32137950140ebfd2d566c144ac85e0c41d69ba4 Mon Sep 17 00:00:00 2001
From: Jaime Rodriguez <jaime.rodriguez13@imperial.ac.uk>
Date: Wed, 30 Dec 2015 19:50:23 +0100
Subject: [PATCH] Use canonical username when subscribing to spirc.

Uses canonical username that APWelcome message
contains once authenticated instead of username
provided by user. SpircManager now accesses it via
its Session field.

Fixes #15
---
 src/main.rs    |  3 ++-
 src/session.rs | 11 ++++++++++-
 src/spirc.rs   | 10 +++++-----
 3 files changed, 17 insertions(+), 7 deletions(-)

diff --git a/src/main.rs b/src/main.rs
index 4b8d9f9..e342979 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -63,6 +63,7 @@ fn main() {
         device_id: name.clone(),
         cache_location: PathBuf::from(cache_location)
     };
+
     let session = Session::new(config);
     session.login(username.clone(), password);
     session.poll();
@@ -76,7 +77,7 @@ fn main() {
 
     let player = Player::new(&session);
 
-    let mut spirc_manager = SpircManager::new(&session, player, username, name);
+    let mut spirc_manager = SpircManager::new(&session, player, name);
     spirc_manager.run();
 }
 
diff --git a/src/session.rs b/src/session.rs
index 94cdb7d..3897960 100644
--- a/src/session.rs
+++ b/src/session.rs
@@ -29,6 +29,7 @@ pub struct Config {
 
 pub struct SessionData {
     pub country: String,
+    pub canonical_username: String,
 }
 
 pub struct SessionInternal {
@@ -125,6 +126,7 @@ impl Session {
             config: config,
             data: RwLock::new(SessionData {
                 country: String::new(),
+                canonical_username: String::new(),
             }),
 
             rx_connection: Mutex::new(cipher_connection.clone()),
@@ -179,7 +181,14 @@ impl Session {
             },
 
             0xb2...0xb6 => self.0.mercury.lock().unwrap().handle(cmd, data),
-            0xac => eprintln!("Authentication succeedded"),
+            0xac => {
+                let welcome_data : protocol::authentication::APWelcome = 
+                    protobuf::parse_from_bytes(&data).unwrap();
+                self.0.data.write().unwrap().canonical_username = 
+                    welcome_data.get_canonical_username().to_string();
+                eprintln!("Authentication succeeded")
+            },
+
             0xad => eprintln!("Authentication failed"),
             _ => ()
         }
diff --git a/src/spirc.rs b/src/spirc.rs
index de03884..6fa86b4 100644
--- a/src/spirc.rs
+++ b/src/spirc.rs
@@ -15,7 +15,6 @@ pub struct SpircManager<'s, D: SpircDelegate> {
     delegate: D,
     session: &'s Session,
 
-    username: String,
     state_update_id: i64,
     seq_nr: u32,
 
@@ -61,12 +60,11 @@ pub trait SpircState {
 
 impl <'s, D: SpircDelegate> SpircManager<'s, D> {
     pub fn new(session: &'s Session, delegate: D,
-               username: String, name: String) -> SpircManager<'s, D> {
+               name: String) -> SpircManager<'s, D> {
         SpircManager {
             delegate: delegate,
             session: &session,
 
-            username: username.clone(),
             state_update_id: 0,
             seq_nr: 0,
 
@@ -91,7 +89,8 @@ impl <'s, D: SpircDelegate> SpircManager<'s, D> {
     }
 
     pub fn run(&mut self) {
-        let rx = self.session.mercury_sub(format!("hm://remote/3/user/{}/", self.username));
+        let rx = self.session.mercury_sub(format!("hm://remote/3/user/{}/", 
+                    self.session.0.data.read().unwrap().canonical_username.clone()));
         let updates = self.delegate.updates();
 
         loop {
@@ -192,7 +191,8 @@ impl <'s, D: SpircDelegate> SpircManager<'s, D> {
 
         self.session.mercury(MercuryRequest{
             method: MercuryMethod::SEND,
-            uri: format!("hm://remote/user/{}", self.username),
+            uri: format!("hm://remote/user/{}", 
+                         self.session.0.data.read().unwrap().canonical_username.clone()),
             content_type: None,
             payload: vec![ pkt.write_to_bytes().unwrap() ]
         }).await().unwrap();