From 4eb739dcab2a1a79e1e0e60feddb0d9cc0d74108 Mon Sep 17 00:00:00 2001
From: Bryan Newbold <bnewbold@robocracy.org>
Date: Mon, 19 Feb 2018 20:06:10 -0800
Subject: more WIP on synchronizer

---
 src/bin/geniza.rs   | 19 +++++++++++++------
 src/peer.rs         | 32 ++++++++++++++++++++++++--------
 src/protocol.rs     |  6 +++++-
 src/synchronizer.rs |  5 +++--
 4 files changed, 45 insertions(+), 17 deletions(-)

diff --git a/src/bin/geniza.rs b/src/bin/geniza.rs
index f5c73b0..72a7f8f 100644
--- a/src/bin/geniza.rs
+++ b/src/bin/geniza.rs
@@ -6,12 +6,14 @@ extern crate env_logger;
 #[macro_use]
 extern crate error_chain;
 extern crate geniza;
+extern crate sodiumoxide;
 
 // TODO: more careful import
 use geniza::*;
 use std::path::{Path, PathBuf};
 use clap::{App, SubCommand};
 use std::env::current_dir;
+use sodiumoxide::crypto::stream::Key;
 
 
 // Helper to find a dat directory somewhere in the parent to the current working directory (or None
@@ -89,12 +91,17 @@ fn run() -> Result<()> {
 
     match matches.subcommand() {
         ("clone", Some(subm)) => {
-            let dat_key = subm.value_of("dat_key").unwrap();
-            let _key_bytes = parse_dat_address(&dat_key)?;
-            unimplemented!();
-            //let dir = Path::new(subm.value_of("dat-dir").unwrap());
-            //let mut metadata = SleepDirRegister::create(&dir, "metadata")?;
-            //node_simple_clone(host_port, &key_bytes, &mut metadata, false)?;
+            let dat_key = subm.value_of("address").unwrap();
+            let key_bytes = parse_dat_address(&dat_key)?;
+            let key = Key::from_slice(&key_bytes).unwrap();
+            let dir = Path::new(subm.value_of("dir").unwrap());
+
+            let mut sync = Synchronizer::new_downloader(key,
+                                                        SyncMode::RxMax,
+                                                        dir)?;
+            let peer_count = sync.discover()?;
+            println!("Found {} potential peers", peer_count);
+            sync.run()?;
         }
         ("init", Some(subm)) => {
             let _dir = Path::new(subm.value_of("dir").unwrap());
diff --git a/src/peer.rs b/src/peer.rs
index b4fddef..a020a1a 100644
--- a/src/peer.rs
+++ b/src/peer.rs
@@ -71,14 +71,30 @@ fn worker_thread(mut dc: DatConnection, handle: u64, outbound_chan: chan::Receiv
                 };
             },
             raw_peer_rx.recv() -> val => {
-                if let Some(Ok((msg, feed_index))) = val {
-                    // do mapping between feed index and feed pubkey here
-                    let pm = PeerMsg {
-                        peer_handle: handle,
-                        feed_index: feed_index,
-                        msg,
-                    };
-                    unified_chan.send(Ok(pm));
+                match val {
+                    Some(Ok((msg, feed_index))) => {
+                        // do mapping between feed index and feed pubkey here
+                        let pm = PeerMsg {
+                            peer_handle: handle,
+                            feed_index: feed_index,
+                            msg,
+                        };
+                        unified_chan.send(Ok(pm));
+                    },
+                    Some(Err(err)) => {
+                        println!("remote socket error: {:?}", err);
+                        // XXX: Need to send something so we know to close
+                        unified_chan.send(Err(err));
+                        dc.close();
+                        return;
+                    },
+                    None => {
+                        println!("remote socket closed");
+                        // XXX: Need to send something so we know to close
+                        //unified_chan.send(Err(err));
+                        dc.close();
+                        return;
+                    }
                 };
             }
         };
diff --git a/src/protocol.rs b/src/protocol.rs
index 6e70dbb..35681e1 100644
--- a/src/protocol.rs
+++ b/src/protocol.rs
@@ -1,5 +1,5 @@
 
-use std::net::{TcpStream, ToSocketAddrs};
+use std::net::{TcpStream, ToSocketAddrs, Shutdown};
 use std::time::Duration;
 use std::io::{Read, Write};
 use std::cmp;
@@ -395,4 +395,8 @@ impl DatConnection {
         trace!("\twas: {:?}", reg);
         Ok(reg)
     }
+
+    pub fn close(&mut self) {
+        self.tcp.shutdown(Shutdown::Both);
+    }
 }
diff --git a/src/synchronizer.rs b/src/synchronizer.rs
index 277bf64..cfc4cd3 100644
--- a/src/synchronizer.rs
+++ b/src/synchronizer.rs
@@ -136,14 +136,15 @@ impl Synchronizer {
     }
 
     fn handle_msg(&mut self, pm: &PeerMsg) -> Result<()> {
+        // NB: this is the simplistic model of registers (only works up to 2x per peer)
 
         // mutable ref to PeerThread for this message
         let pt = self.peers.get_mut(&pm.peer_handle).unwrap();
 
         // NB: this is the simplistic model of registers (only works up to 2x per peer?)
         if pm.feed_index as usize >= self.registers.len() {
-            // XXX: invalid feed! drop connection
-            pt.close()?;
+            // Ignore feed channels we haven't registered yet
+            return Ok(());
         }
 
         match &pm.msg {
-- 
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