Merge branch 'develop' of github.com:nymtech/nym into develop

mixnode/src/commands/mod.rs

@@ -7,6 +7,7 @@ use nymsphinx::params::DEFAULT_NUM_MIX_HOPS;
 
 pub(crate) mod init;
 pub(crate) mod run;
+pub(crate) mod sign;
 pub(crate) mod upgrade;
 
 pub(crate) fn override_config(mut config: Config, matches: &ArgMatches) -> Config {

mixnode/src/commands/run.rs

@@ -171,7 +171,7 @@ pub fn execute(matches: &ArgMatches) {
     );
 
     println!(
-        "\nTo bond your mixnode you will need to provide the following:
+        "\nTo bond your mixnode, go to https://web-wallet-finney.nymtech.net/.  You will need to provide the following:
     Identity key: {}
     Sphinx key: {}
     Host: {}

mixnode/src/commands/sign.rs

@@ -0,0 +1,73 @@
+use crate::config::{persistence::pathfinder::MixNodePathfinder, Config};
+use clap::{App, Arg, ArgMatches};
+use colored::*;
+use config::NymConfig;
+use crypto::asymmetric::identity;
+use log::*;
+
+pub fn command_args<'a, 'b>() -> App<'a, 'b> {
+    App::new("sign")
+        .about("Sign text to prove ownership of this mixnode")
+        .arg(
+            Arg::with_name("id")
+                .long("id")
+                .help("The id of the mixnode you want to sign with")
+                .takes_value(true)
+                .required(true),
+        )
+        .arg(
+            Arg::with_name("text")
+                .long("text")
+                .help("The text to sign")
+                .takes_value(true)
+                .required(true),
+        )
+}
+
+fn load_identity_keys(pathfinder: &MixNodePathfinder) -> identity::KeyPair {
+    let identity_keypair: identity::KeyPair = pemstore::load_keypair(&pemstore::KeyPairPath::new(
+        pathfinder.private_identity_key().to_owned(),
+        pathfinder.public_identity_key().to_owned(),
+    ))
+    .expect("Failed to read stored identity key files");
+    identity_keypair
+}
+
+pub fn execute(matches: &ArgMatches) {
+    let id = matches.value_of("id").unwrap();
+    let text = matches.value_of("text").unwrap();
+
+    let config = match Config::load_from_file(id) {
+        Ok(cfg) => cfg,
+        Err(err) => {
+            error!("Failed to load config for {}. Are you sure you have run `init` before? (Error was: {})", id, err);
+            return;
+        }
+    };
+    let pathfinder = MixNodePathfinder::new_from_config(&config);
+    let identity_keypair = load_identity_keys(&pathfinder);
+    let signature_bytes = identity_keypair
+        .private_key()
+        .sign(text.as_ref())
+        .to_bytes();
+
+    let signature = bs58::encode(signature_bytes).into_string();
+    let identity = identity_keypair.public_key().to_base58_string();
+
+    let channel_name = "@nymchan_help_chat".bright_cyan();
+
+    println!(
+        "Signing the text {:?} using your mixnode's Ed25519 identity key...",
+        text
+    );
+    println!();
+    println!("Signature is: {}", signature);
+    println!();
+    println!("You can claim your mixnode in Telegram by talking to our bot. To do so:");
+    println!();
+    println!("* go to the '{}' channel", channel_name);
+    println!("* copy the following line of text, and paste it into the channel");
+    println!();
+    println!("/claim {} {}", identity, signature);
+    println!();
+}

mixnode/src/main.rs

@@ -19,6 +19,7 @@ fn main() {
         .subcommand(commands::init::command_args())
         .subcommand(commands::run::command_args())
         .subcommand(commands::upgrade::command_args())
+        .subcommand(commands::sign::command_args())
         .get_matches();
 
     execute(arg_matches);
@@ -28,6 +29,7 @@ fn execute(matches: ArgMatches) {
     match matches.subcommand() {
         ("init", Some(m)) => commands::init::execute(m),
         ("run", Some(m)) => commands::run::execute(m),
+        ("sign", Some(m)) => commands::sign::execute(m),
         ("upgrade", Some(m)) => commands::upgrade::execute(m),
         _ => println!("{}", usage()),
     }