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use crate::{entry::Entry, error::HcResult};
use holochain_persistence_api::cas::content::{Address, AddressableContent, Content};
use holochain_json_api::{
error::{JsonError, JsonResult},
json::JsonString,
};
use std::{convert::TryFrom, str};
use hcid::*;
pub type Base32 = String;
#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, DefaultJson, Eq)]
pub struct AgentId {
pub nick: String,
pub pub_sign_key: Base32,
}
impl AgentId {
pub const FAKE_RAW_KEY: [u8; 32] = [
42, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0,
];
pub fn generate_fake(nick: &str) -> Self {
AgentId::new_with_raw_key(nick, str::from_utf8(&AgentId::FAKE_RAW_KEY).unwrap())
.expect("AgentId fake key generation failed")
}
pub fn new_with_raw_key(nick: &str, key: &str) -> HcResult<Self> {
let codec = HcidEncoding::with_kind("hcs0")?;
let key_b32 = codec.encode(key.as_bytes())?;
Ok(AgentId::new(nick, key_b32))
}
pub fn new(nick: &str, key_b32: Base32) -> Self {
AgentId {
nick: nick.to_string(),
pub_sign_key: key_b32,
}
}
pub fn decoded_key(&self) -> HcResult<String> {
let codec = HcidEncoding::with_kind("hcs0")?;
let key_b32 = codec.decode(&self.pub_sign_key)?;
Ok(str::from_utf8(&key_b32).unwrap().to_owned())
}
}
impl AddressableContent for AgentId {
fn address(&self) -> Address {
self.pub_sign_key.clone().into()
}
fn content(&self) -> Content {
Entry::AgentId(self.to_owned()).into()
}
fn try_from_content(content: &Content) -> JsonResult<Self> {
match Entry::try_from(content)? {
Entry::AgentId(agent_id) => Ok(agent_id),
_ => Err(JsonError::SerializationError(
"Attempted to load AgentId from non AgentID entry".into(),
)),
}
}
}
pub static GOOD_ID: &str = "HcScIkRaAaaaaaaaaaAaaaAAAAaaaaaaaaAaaaaAaaaaaaaaAaaAAAAatzu4aqa";
pub static BAD_ID: &str = "HcScIkRaAaaaaaaaaaAaaaBBBBaaaaaaaaAaaaaAaaaaaaaaAaaAAAAatzu4aqa";
pub static TOO_BAD_ID: &str = "HcScIkRaAaaaaaaaaaBBBBBBBBaaaaaaaaAaaaaAaaaaaaaaAaaAAAAatzu4aqa";
pub fn test_agent_id() -> AgentId {
AgentId::new("bob", GOOD_ID.to_string())
}
pub fn test_agent_id_with_name(name: &str) -> AgentId {
AgentId::new(name, name.to_string())
}
#[cfg(test)]
mod tests {
use super::*;
pub fn test_identity_value() -> Content {
Content::from_json(&format!(
"{{\"nick\":\"bob\",\"pub_sign_key\":\"{}\"}}",
GOOD_ID
))
}
#[test]
fn it_can_generate_fake() {
let agent_id = AgentId::generate_fake("sandwich");
assert_eq!(
"HcScIkRaAaaaaaaaaaAaaaAAAAaaaaaaaaAaaaaAaaaaaaaaAaaAAAAatzu4aqa".to_string(),
agent_id.address().to_string(),
);
}
#[test]
fn it_should_decode_key() {
let agent_id = test_agent_id();
let raw_key = agent_id.decoded_key().unwrap();
println!("decoded key = {}", raw_key);
}
#[test]
fn it_should_correct_errors() {
let corrected_id = AgentId::new("bob", BAD_ID.to_string());
let raw_key = corrected_id.decoded_key().unwrap();
assert_eq!(test_agent_id().decoded_key().unwrap(), raw_key);
}
#[test]
fn it_fails_if_too_many_errors() {
let corrected_id = AgentId::new("bob", TOO_BAD_ID.to_string());
let maybe_key = corrected_id.decoded_key();
assert!(maybe_key.is_err());
}
#[test]
fn agent_to_string_test() {
assert_eq!(test_identity_value(), test_agent_id().into());
}
#[test]
fn agent_addressable_content_test() {
let expected_content =
Content::from_json("{\"AgentId\":{\"nick\":\"bob\",\"pub_sign_key\":\"HcScIkRaAaaaaaaaaaAaaaAAAAaaaaaaaaAaaaaAaaaaaaaaAaaAAAAatzu4aqa\"}}");
assert_eq!(expected_content, test_agent_id().content(),);
assert_eq!(
test_agent_id(),
AgentId::try_from_content(&expected_content).unwrap(),
);
}
}