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extern crate base64;
extern crate uuid;
use uuid::ParseError;
use base64::DecodeError;
use uuid::Uuid;
#[derive(Debug)]
pub enum ConvertError{
ParseError(ParseError),
FromBase64Error(DecodeError)
}
pub fn to_blob(uuid: &Uuid) -> String{
base64::encode_config(uuid.as_bytes(), base64::URL_SAFE_NO_PAD)
}
pub fn to_uuid(blob: &str) -> Result<Uuid, ConvertError>{
match base64::decode_config(blob, base64::URL_SAFE_NO_PAD){
Ok(bytes) => {
match Uuid::from_bytes(&bytes){
Ok(uuid) => Ok(uuid),
Err(e) => Err(ConvertError::ParseError(e))
}
},
Err(e) => {
Err(ConvertError::FromBase64Error(e))
}
}
}
#[cfg(test)]
mod test{
use super::*;
#[test]
fn test_blobs() {
let uuid_str = "557c8018-5e21-4b74-8bb0-9040e2e8ead1";
println!("uuid_str: {}", uuid_str);
let blob = "VXyAGF4hS3SLsJBA4ujq0Q";
println!("blob: {}", blob);
let uuid = Uuid::parse_str(uuid_str).unwrap();
assert_eq!(uuid, to_uuid(blob).unwrap());
assert_eq!(blob, to_blob(&uuid));
}
#[test]
fn test_more_blobs(){
for _ in 0..10{
let uuid = Uuid::new_v4();
let blob = to_blob(&uuid);
assert_eq!(blob.chars().count(), 22);
println!("{} | {}",uuid,blob);
}
}
}