add pretty printing to json store, move notif handling to a thread

src/bootstrap.rs

@@ -1,8 +1,9 @@
+//! Application start-up code handling CLI args, logging, config file load etc
+
 use std::fs::File;
 use std::io::Read;
 use failure::Fallible;
-use serde::Deserialize;
-use serde::Serialize;
+use crate::Config;
 
 const CONFIG_FILE: &str = "manabu.toml";
 
@@ -12,20 +13,11 @@ const SOFTWARE_NAME: &str = env!("CARGO_PKG_NAME");
 /// to allow using e.g. TRACE without drowing our custom messages
 const SPAMMY_LIBS: [&str; 6] = ["tokio_reactor", "hyper", "reqwest", "mio", "want", "elefren"];
 
-#[derive(SmartDefault,Serialize,Deserialize,Debug)]
-#[serde(default)]
-pub struct Config {
-    #[default="info"]
-    logging: String,
-    pub instance: String,
-    #[default="manabu_store.json"]
-    pub store: String,
-}
-
 const LOG_LEVELS: [&str; 5] = ["error", "warn", "info", "debug", "trace"];
 
+
 /// Load the shared config file
-fn load_config(file: &str) -> Fallible<Config> {
+pub fn load_config(file: &str) -> Fallible<Config> {
     let mut file = File::open(file)?;
 
     let mut buf = String::new();
@@ -41,7 +33,8 @@ fn load_config(file: &str) -> Fallible<Config> {
     Ok(config)
 }
 
-pub(crate) fn init() -> Fallible<Config> {
+/// Boot up the application. Initializes common stuff and returns the loaded config.
+pub fn handle_cli_args_and_load_config() -> Fallible<Config> {
     let version = format!("{}, built from {}", env!("CARGO_PKG_VERSION"), env!("GIT_REV"));
     let argv =
         clap::App::new(SOFTWARE_NAME)

src/ele.rs

@@ -0,0 +1,88 @@
+//! Mastodon API types and functions building on elefren
+
+use serde::Deserialize;
+use serde::Serialize;
+use crate::store::Store;
+use crate::Config;
+use elefren::{Registration, Mastodon};
+use elefren::http_send::HttpSender;
+use elefren::helpers::cli;
+use elefren::scopes::Scopes;
+use std::str::FromStr;
+use failure::Fallible;
+
+const KEY_OAUTH_REGISTRATION: &str = "oauth.registration";
+const KEY_OAUTH_SESSION: &str = "oauth.session";
+
+pub type EleRegistratered = elefren::registration::Registered<HttpSender>;
+pub type EleSession = elefren::Mastodon<HttpSender>;
+pub type EleStreamSocket = websocket::sync::Client<native_tls::TlsStream<std::net::TcpStream>>;
+
+/// Wrapper for the long tuple with Registration state
+#[derive(Serialize,Deserialize,Debug)]
+pub struct ElefrenRegistration {
+    pub parts: (String, String, String, String, Scopes, bool),
+}
+
+
+/// Register "app" in the server software
+pub fn register(store : &mut Store, config : &Config) -> EleRegistratered {
+    match store.get::<ElefrenRegistration>(KEY_OAUTH_REGISTRATION) {
+        Some(reg) => {
+            info!("Loaded registration from store");
+
+            EleRegistratered::from_parts(
+                // this sucks
+                &reg.parts.0, &reg.parts.1, &reg.parts.2, &reg.parts.3, reg.parts.4, reg.parts.5
+            )
+        }
+        None => {
+            info!("Creating a new registration");
+
+            let registered = Registration::new(&format!("https://{}", config.instance))
+                .client_name("manabu")
+                .scopes(Scopes::from_str("read write").expect("err parse scopes"))
+                .build().expect("error register");
+            store.put(KEY_OAUTH_REGISTRATION, ElefrenRegistration { parts : registered.clone().into_parts() });
+            registered
+        }
+    }
+}
+
+/// Open mastodon API session (get access token)
+pub fn open_session(store : &mut Store, registered: EleRegistratered) -> EleSession {
+    match store.get::<elefren::Data>(KEY_OAUTH_SESSION) {
+        Some(data) => {
+            info!("Reusing saved authorization.");
+
+            let cli = Mastodon::from(data);
+            // TODO check if the session is live, somehow
+            cli
+        }
+        None => {
+            info!("Creating new authorization.");
+
+            let cli = cli::authenticate(registered).expect("error auth");
+            store.put(KEY_OAUTH_SESSION, cli.data.clone());
+            cli
+        }
+    }
+}
+
+/// Open streaming api websocket
+pub fn open_stream_websocket(session : &EleSession, stream_name : &str) -> Fallible<EleStreamSocket> {
+    let connector = native_tls::TlsConnector::new()?;
+
+    let hostname = &session.data.base[session.data.base.find("://").unwrap()+3..];
+
+    let url = format!("wss://{host}/api/v1/streaming/?stream={sname}&access_token={token}",
+                      host=hostname,
+                      sname=stream_name,
+                      token=session.data.token);
+
+    debug!("WS url = {}", &url);
+
+    Ok(websocket::ClientBuilder::new(&url)
+        .expect("Error create ClientBuilder")
+        .connect_secure(Some(connector))?)
+}

src/main.rs

@@ -6,120 +6,85 @@ extern crate failure;
 extern crate smart_default;
 #[macro_use]
 extern crate serde;
-#[macro_use]
-use elefren::{
-    helpers::cli,
-    prelude::*,
-    entities::prelude::*,
-    http_send::HttpSender,
-};
-
-use failure::Fallible;
-use crate::bootstrap::Config;
-use crate::store::Store;
 
-use native_tls::TlsConnector;
-use std::io::{Read, Write};
-use std::net::TcpStream;
-use websocket::OwnedMessage;
+use websocket::{OwnedMessage};
+use std::thread;
 
 mod bootstrap;
 mod store;
+mod ele;
 
-type EleRegistratered = elefren::registration::Registered<HttpSender>;
+use crate::bootstrap::handle_cli_args_and_load_config;
 
-/// Wrapper for the long tuple with Registration state
-#[derive(Serialize,Deserialize,Debug)]
-struct ElefrenRegistration {
-    parts: (String, String, String, String, Scopes, bool),
+use crate::store::Store;
+use crate::ele::{EleSession, EleStreamSocket};
+use std::time::Duration;
+
+#[derive(SmartDefault,Serialize,Deserialize,Debug)]
+#[serde(default)]
+pub struct Config {
+    /// Logging level to use (can be increased using -v flags)
+    #[default="info"]
+    pub logging: String,
+    /// Instance domain name, e.g. example.com
+    pub instance: String,
+    /// File to use for session storage
+    #[default="manabu_store.json"]
+    pub store: String,
 }
 
-const KEY_OAUTH_REGISTRATION: &str = "elefren.registration";
-const KEY_OAUTH_SESSION: &str = "elefren.session";
-
 fn main() {
-    let config : Config = bootstrap::init().expect("error init config");
+    let config : Config = handle_cli_args_and_load_config().expect("error init");
 
     debug!("Loaded config: {:#?}", config);
 
     let mut store = Store::from_file(&config.store);
     store.set_autosave(true);
+    store.set_pretty_print(true);
 
-    let registered = register(&mut store, &config);
+    let registered = ele::register(&mut store, &config);
 
-    let client = open_session(&mut store, registered);
+    let session = ele::open_session(&mut store, registered);
 
     debug!("Listening to events");
 
-    let connector = TlsConnector::new().unwrap();
+    let m_session = session.clone();
+    let handle = thread::spawn(move || handle_stream(m_session));
+
+    let _ = handle.join();
+}
+
+fn handle_stream(session : EleSession) -> ! {
+    loop {
+        debug!("Trying to open websocket");
 
-    use websocket::ClientBuilder;
+        match ele::open_stream_websocket(&session, "user") {
+            Ok(socket) => process_incoming_events(socket),
+            Err(e) => error!("Error opening socket: {}", e)
+        }
 
-    let url = format!("wss://{host}/api/v1/streaming/?stream=user&access_token={token}", host=config.instance, token=client.data.token);
-    debug!("WS url = {}", &url);
-    let mut client = ClientBuilder::new(&url)
-        .expect("Error create ClientBuilder")
-        .connect_secure(Some(connector))
-        .expect("Error connect to wss");
+        debug!("Delay before reconnecting...");
+        thread::sleep(Duration::from_secs(10));
+    }
+}
 
-    for m in client.incoming_messages() {
+fn process_incoming_events(mut socket : EleStreamSocket) {
+    'listen: for m in socket.incoming_messages() {
         match m {
             Ok(OwnedMessage::Text(text)) => {
                 debug!("Got msg: {}", text);
             },
-            Ok(OwnedMessage::Close(text)) => {
+            Ok(OwnedMessage::Close(_text)) => {
                 debug!("Close");
-                break;
+                break 'listen;
             },
             Ok(any) => {
                 debug!("Unhandled msg: {:?}", any);
             }
             Err(e) => {
-                error!("{}", e);
-                break;
+                error!("Error reading from socket: {}", e);
+                break 'listen;
             },
         }
     }
-    info!("Exit.");
-}
-
-fn register(store : &mut Store, config : &Config) -> EleRegistratered {
-    match store.get::<ElefrenRegistration>(KEY_OAUTH_REGISTRATION) {
-        Some(reg) => {
-            info!("Loaded registration from store");
-
-            EleRegistratered::from_parts(
-                // this sucks
-                &reg.parts.0, &reg.parts.1, &reg.parts.2, &reg.parts.3, reg.parts.4, reg.parts.5
-            )
-        }
-        None => {
-            info!("Creating a new registration");
-
-            let registered = Registration::new(&format!("https://{}", config.instance))
-                .client_name("manabu")
-                .build().expect("error register");
-            store.put(KEY_OAUTH_REGISTRATION, ElefrenRegistration { parts : registered.clone().into_parts() });
-            registered
-        }
-    }
-}
-
-fn open_session(store : &mut Store, registered: EleRegistratered) -> Mastodon<HttpSender> {
-    match store.get::<elefren::Data>(KEY_OAUTH_SESSION) {
-        Some(data) => {
-            info!("Reusing saved authorization.");
-
-            let cli = Mastodon::from(data);
-            // TODO check if the session is live, somehow
-            cli
-        }
-        None => {
-            info!("Creating new authorization.");
-
-            let cli = cli::authenticate(registered).expect("error auth");
-            store.put(KEY_OAUTH_SESSION, cli.data.clone());
-            cli
-        }
-    }
 }

src/store.rs

@@ -1,3 +1,7 @@
+#![allow(unused)]
+
+//! JSON store
+
 use std::borrow::Cow;
 use serde::{Serialize, Deserialize};
 use serde::de::DeserializeOwned;
@@ -18,6 +22,7 @@ use std::fmt::{self, Display, Formatter};
 pub struct Store {
     path: Option<PathBuf>,
     autosave: bool,
+    prettysave: bool,
     items: Map<String, serde_json::Value>,
 }
 
@@ -26,6 +31,7 @@ impl Default for Store {
         Self {
             path: None,
             autosave: false,
+            prettysave: false,
             items: Map::new()
         }
     }
@@ -82,6 +88,7 @@ impl Store {
         let mut store = Store {
             path: Some(path.as_ref().into()),
             autosave: false,
+            prettysave: false,
             items: Map::new(),
         };
 
@@ -92,6 +99,11 @@ impl Store {
         store
     }
 
+    /// Set pretty print option to use when saved
+    pub fn set_pretty_print(&mut self, pretty : bool) {
+        self.prettysave = pretty;
+    }
+
     /// Set auto-save option - save on each mutation.
     pub fn set_autosave(&mut self, autosave: bool) {
         self.autosave = autosave;
@@ -142,7 +154,11 @@ impl Store {
 
     /// Save the map to a custom file path.
     pub fn save_to<P: AsRef<Path>>(&self, path: P) -> Result<()> {
-        let as_str = serde_json::to_string(&self.items).unwrap();
+        let as_str = (if self.prettysave {
+            serde_json::to_string_pretty(&self.items)
+        } else {
+            serde_json::to_string(&self.items)
+        }).unwrap();
 
         let mut file = File::create(path)?;
         file.write(as_str.as_bytes())?;