Add Send as JSON

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "tapir-cwtch"
-version = "0.1.8"
+version = "0.1.9"
 authors = ["Sarah Jamie Lewis <sarah@openprivacy.ca>"]
 edition = "2018"
 license = "MIT"

src/connections/mod.rs

@@ -2,6 +2,7 @@ use hashbrown::HashSet;
 use integer_encoding::{FixedInt, VarInt};
 use secretbox::CipherType::Salsa20;
 use secretbox::SecretBox;
+use serde::Serialize;
 use std::io::{Error, Read, Write};
 use std::net::{Shutdown, TcpStream};
 
@@ -162,6 +163,20 @@ where
         }
     }
 
+    /// Send anything implemented Serialize as JSON
+    pub fn send_json_encrypted<T>(&mut self, data: T) -> Result<(), Error>
+    where
+        T: Serialize,
+    {
+        let mut msg = vec![];
+        let mut len = [0u8; 2];
+        let json = serde_json::to_string(&data).unwrap();
+        (json.len() as u16).encode_fixed(&mut len);
+        msg.extend_from_slice(len.as_slice());
+        msg.extend_from_slice(json.as_bytes());
+        self.send_encrypted(msg)
+    }
+
     pub fn try_clone(&self) -> Connection<Direction> {
         Connection {
             conn: self.conn.try_clone().unwrap(),