start base64 serialiser

Cargo.lock

@@ -746,6 +746,7 @@ dependencies = [
 name = "rae"
 version = "0.1.0"
 dependencies = [
+ "base64",
  "base65536",
  "cfg-if",
  "chrono",

Cargo.toml

@@ -31,7 +31,8 @@ serde_cbor = "0.11.1"
 futures = "0.3.5"
 chrono = "0.4.15"
 pin-project = "0.4.23"
-#serde_json = "1.0.57" # serde not suitable for our text formatting :/
+base64 = "0.12.3"
+#serde_json = "1.0.57" # serde not suitable for our text formatting :/ maybe just use `cbor` -> base64 with text header? would be a PEM-like format. sounds good imo
 
 [build-dependencies]
 rustc_version = "0.2"

src/format/key/mod.rs

@@ -104,22 +104,13 @@ impl KeyHeader
     #[instrument(err, skip(out))]
     pub async fn write_text<T: AsyncWrite+Unpin+?Sized>(&self, out: &mut T) -> Result<usize, eyre::Report>
     {
-	let vec = serde_json::to_vec(self)
-	    .wrap_err_with(|| eyre::eyre!("Failed to serialise self to JSON"))
-	    .with_section(|| format!("{:?}", self).header("Self was"))?;
-	out.write_all(&vec[..]).await?;
-	Ok(vec.len())
+	todo!()
     }
     /// Read a superheader as text bytes from this stream
     #[instrument(err, skip(input))]
     pub async fn read_text<T: AsyncRead+Unpin+?Sized>(input: &mut T) -> Result<Self, eyre::Report>
     {
-	let whole = input.read_whole_stream(MAX_TEXT_SZ).await
-	    .wrap_err_with(|| eyre::eyre!("Failed to read text stream into memory"))?;
-
-	Ok(serde_json::from_slice(&whole[..])
-	   .wrap_err_with(|| eyre::eyre!("Failed to deserialise JSON to value"))
-	   .with_section(move || String::from_utf8_lossy(&whole[..]).into_owned().header("Read text was"))?)
+	todo!()
     }
     /// Write this key header as bytes to this stream
     #[instrument(err, skip(out))]
@@ -269,7 +260,7 @@ mod tests
 	//color_eyre::install()?;
 
 	panic!("We're going to have to write our own text serialisation to get around the `read_whole_buffer` thingy...");
-
+/*
 	let header = KeyHeader::new_now(KeyHeaderKind::Aes, Default::default(), Default::default());
 	let mut ser = Vec::new();
 	let superheader = SuperHeader::<KeyHeader>::new_for(&header);
@@ -290,6 +281,6 @@ mod tests
 	assert_eq!(readheader, header);
 	assert_eq!(reads, superheader);
 
-	Ok(())
+	Ok(())*/
     }
 }

src/format/mod.rs

@@ -56,22 +56,13 @@ impl<H: Header> SuperHeader<H>
     #[instrument(err, skip(out))]
     pub async fn write_text<T: AsyncWrite+Unpin+?Sized>(&self, out: &mut T) -> Result<usize, eyre::Report>
     {
-	let vec = serde_json::to_vec(self)
-	    .wrap_err_with(|| eyre::eyre!("Failed to serialise self to JSON"))
-	    .with_section(|| format!("{:?}", self).header("Self was"))?;
-	out.write_all(&vec[..]).await?;
-	Ok(vec.len())
+	todo!()
     }
     /// Read a superheader as text bytes from this stream
     #[instrument(err, skip(input))]
     pub async fn read_text<T: AsyncRead+Unpin+?Sized>(input: &mut T) -> Result<Self, eyre::Report>
     {
-	let whole = input.read_whole_stream(MAX_TEXT_SZ).await
-	    .wrap_err_with(|| eyre::eyre!("Failed to read text stream into memory"))?;
-
-	Ok(serde_json::from_slice(&whole[..])
-	   .wrap_err_with(|| eyre::eyre!("Failed to deserialise JSON to value"))
-	   .with_section(move || String::from_utf8_lossy(&whole[..]).into_owned().header("Read text was"))?)
+	todo!()
     }
 
     /// Write this superheader as bytes to this stream

src/main.rs

@@ -66,6 +66,73 @@ pub mod timestamp
     }
 }
 
+pub mod serialise
+{
+    use super::*;
+
+    #[instrument(err, skip(value), fields(value_type=?std::any::type_name::<T>()))]
+    pub fn into_text<T: Serialize>(value: &T) -> Result<String, Error>
+    {
+	let bytes = serde_cbor::to_vec(value).map_err(Error::Serialise)?;
+	Ok(base64::encode(bytes))
+    }
+
+    #[derive(Debug)]
+    pub enum Error
+    {
+	Base64(base64::DecodeError),
+	Serialise(serde_cbor::Error),
+	Deserialise(serde_cbor::Error),
+    }
+
+    impl std::error::Error for Error
+    {
+	fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
+	    match &self {
+		Self::Base64(b) => Some(b),
+		Self::Serialise(b) => Some(b),
+		Self::Deserialise(b) => Some(b),
+	    }
+	}
+    }
+
+    impl std::fmt::Display for Error
+    {
+	fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result
+	{
+	    match self {
+		Self::Base64(_) => write!(f, "base64 decode failed"),
+		Self::Serialise(_) => write!(f, "serialisation failed"),
+		Self::Deserialise(_) => write!(f, "deserialisation failed"),
+	    }
+	}
+    }
+
+    #[instrument(err, skip(string), fields(string = ?string.as_ref()))]
+    pub fn from_text<T: serde::de::DeserializeOwned>(string: impl AsRef<[u8]>) -> Result<T, Error>
+    {
+	let bytes = base64::decode(string).map_err(Error::Base64)?;
+	serde_cbor::from_reader(&bytes[..]).map_err(Error::Deserialise)
+    }
+
+    #[cfg(test)]
+    mod tests
+    {
+	use crate::*;
+	#[test]
+	fn test_ser() -> Result<(), eyre::Report>
+	{
+	    let object = "hello world";
+	    let enc = super::into_text(&String::from(object)).wrap_err(eyre::eyre!("failed to encode"))?;
+	    println!("Enc: {:?}", enc);
+	    let dec: String = super::from_text(enc).wrap_err(eyre::eyre!("failed to decode"))?;
+	    assert_eq!(object,dec);
+	    Ok(())
+	}
+    }
+
+}
+
 /*/// Dispatch params operations that can be handled at top level (i.e. `Help`)
 async fn dispatch_args() -> Result<args::Operation, eyre::Report>
 {