From 5b21ae1c4a4891cccc033623d8a100a9bb17672b Mon Sep 17 00:00:00 2001
From: parazyd <parazyd@dyne.org>
Date: Wed, 19 Jul 2023 17:32:23 +0200
Subject: [PATCH] darkirc: Implement --gen-secret

---
 bin/darkirc/darkirc_config.toml | 2 ++
 bin/darkirc/src/main.rs         | 7 +++++++
 bin/darkirc/src/settings.rs     | 4 ++++
 3 files changed, 13 insertions(+)

diff --git a/bin/darkirc/darkirc_config.toml b/bin/darkirc/darkirc_config.toml
index 769e802ed..c6f6cbeca 100644
--- a/bin/darkirc/darkirc_config.toml
+++ b/bin/darkirc/darkirc_config.toml
@@ -45,6 +45,8 @@ transport_mixing = false
 ## ====================
 ##
 ## You can create a shared secret with `darkirc --gen-secret`.
+## Never share this secret over unencrypted channels or with someone
+## who you do not want to be able to read all the channel messages.
 ## Use it like this example:
 #[channel."#foo"]
 #secret = "7CkVuFgwTUpJn5Sv67Q3fyEDpa28yrSeL5Hg2GqQ4jfM"
diff --git a/bin/darkirc/src/main.rs b/bin/darkirc/src/main.rs
index 9c5057063..63d0d4fe0 100644
--- a/bin/darkirc/src/main.rs
+++ b/bin/darkirc/src/main.rs
@@ -85,6 +85,13 @@ async fn realmain(settings: Args, executor: Arc<smol::Executor<'_>>) -> Result<(
         return Ok(())
     }
 
+    if settings.gen_secret {
+        let secret_key = crypto_box::SecretKey::generate(&mut OsRng);
+        let encoded = bs58::encode(secret_key.to_bytes());
+        println!("{}", encoded.into_string());
+        return Ok(())
+    }
+
     ////////////////////
     // Initialize the base structures
     ////////////////////
diff --git a/bin/darkirc/src/settings.rs b/bin/darkirc/src/settings.rs
index 369b4fa39..ca4d0428d 100644
--- a/bin/darkirc/src/settings.rs
+++ b/bin/darkirc/src/settings.rs
@@ -71,6 +71,10 @@ pub struct Args {
     #[structopt(long)]
     pub gen_keypair: bool,
 
+    /// Generate a new NaCl secret for an encrypted channel and exit
+    #[structopt(long)]
+    pub gen_secret: bool,
+
     /// Path to save keypair in
     #[structopt(short)]
     pub output: Option<String>,