mab122
/
radicle-heartwood-lfs
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

node: Implement signed refs 

Signed-off-by: Alexis Sellier <self@cloudhead.io>
This commit is contained in:
Alexis Sellier 2022-09-02 21:37:12 +02:00
parent 6e86218c36
commit cd7421eb86
No known key found for this signature in database
14 changed files with 776 additions and 172 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
node/src/client.rs
View File

@ -55,7 +55,7 @@ pub struct Client<R: Reactor> {
}
impl<R: Reactor> Client<R> {
pub fn new<P: AsRef<Path>, S: Signer>(
pub fn new<P: AsRef<Path>, S: Signer + 'static>(
path: P,
signer: S,
) -> Result<Self, nakamoto_net::error::Error> {

23
node/src/crypto.rs
View File

@ -5,9 +5,17 @@ use ed25519_consensus as ed25519;
use serde::{Deserialize, Serialize};
use thiserror::Error;
pub use ed25519::Error;
pub use ed25519::Signature;
pub trait Signer: Send + Sync + 'static {
/// Verified (used as type witness).
#[derive(Debug, Copy, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub struct Verified;
/// Unverified (used as type witness).
#[derive(Debug, Copy, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub struct Unverified;
pub trait Signer: Send + Sync {
/// Return this signer's public/verification key.
fn public_key(&self) -> &PublicKey;
/// Sign a message and return the signature.
@ -27,6 +35,19 @@ where
}
}
impl<T> Signer for &T
where
T: Signer + ?Sized,
{
fn sign(&self, msg: &[u8]) -> Signature {
self.deref().sign(msg)
}
fn public_key(&self) -> &PublicKey {
self.deref().public_key()
}
}
/// The public/verification key.
#[derive(Serialize, Deserialize, Eq, Debug, Copy, Clone)]
#[serde(transparent)]

14
node/src/git.rs
View File

@ -5,7 +5,8 @@ use radicle_git_ext as git_ext;
use crate::collections::HashMap;
use crate::identity::UserId;
use crate::storage::{Remote, Remotes, Unverified};
use crate::storage::refs::Refs;
use crate::storage::RemoteId;
pub use git_ext::Oid;
pub use git_url::Url;
@ -30,7 +31,7 @@ pub enum ListRefsError {
}
/// List remote refs of a project, given the remote URL.
pub fn list_remotes(url: &Url) -> Result<Remotes<Unverified>, ListRefsError> {
pub fn remote_refs(url: &Url) -> Result<HashMap<RemoteId, Refs>, ListRefsError> {
let url = url.to_string();
let mut remotes = HashMap::default();
let mut remote = git2::Remote::create_detached(&url)?;
@ -40,14 +41,12 @@ pub fn list_remotes(url: &Url) -> Result<Remotes<Unverified>, ListRefsError> {
let refs = remote.list()?;
for r in refs {
let (id, refname) = parse_ref::<UserId>(r.name())?;
let entry = remotes
.entry(id)
.or_insert_with(|| Remote::new(id, HashMap::default()));
let entry = remotes.entry(id).or_insert_with(Refs::default);
entry.refs.insert(refname.to_string(), r.oid().into());
entry.insert(refname.to_string(), r.oid().into());
}
Ok(Remotes::new(remotes))
Ok(remotes)
}
/// Parse a ref string.
@ -90,6 +89,7 @@ pub fn commit<'a>(
let sig = git2::Signature::now(user, "anonymous@radicle.xyz")?;
let tree_id = repo.index()?.write_tree()?;
let tree = repo.find_tree(tree_id)?;
// TODO: Take the ref as parameter.
let oid = repo.commit(None, &sig, &sig, message, &tree, &[parent])?;
let commit = repo.find_commit(oid).unwrap();

20
node/src/protocol.rs
View File

@ -24,7 +24,7 @@ use crate::protocol::config::ProjectTracking;
use crate::protocol::message::Message;
use crate::protocol::peer::{Peer, PeerError, PeerState};
use crate::storage::{self, ReadRepository, WriteRepository};
use crate::storage::{Inventory, ReadStorage, Remotes, Unverified, WriteStorage};
use crate::storage::{Inventory, ReadStorage, Remotes, WriteStorage};
pub use crate::protocol::config::{Config, Network};
@ -339,21 +339,11 @@ where
let user = *self.storage.user_id();
let repo = self.storage.repository(&proj).unwrap();
let remote = repo.remote(&user).unwrap();
let refs = remote.refs;
let signature = self
.signer
.sign(serde_json::to_vec(&refs).unwrap().as_slice());
let peers = self.peers.negotiated().map(|(_, p)| p.addr);
let refs = remote.refs.unverified();
self.context.broadcast(
Message::RefsUpdate {
proj,
user,
refs,
signature,
},
peers,
);
self.context
.broadcast(Message::RefsUpdate { proj, user, refs }, peers);
}
}
}
@ -556,7 +546,7 @@ impl<S, T, G> Iterator for Protocol<S, T, G> {
#[derive(Debug)]
pub struct Lookup {
/// Whether the project was found locally or not.
pub local: Option<Remotes<Unverified>>,
pub local: Option<Remotes<crypto::Verified>>,
/// A list of remote peers on which the project is known to exist.
pub remote: Vec<NodeId>,
}

5
node/src/protocol/message.rs
View File

@ -7,6 +7,7 @@ use crate::crypto;
use crate::identity::{ProjId, UserId};
use crate::protocol::{Context, NodeId, Timestamp, PROTOCOL_VERSION};
use crate::storage;
use crate::storage::refs::SignedRefs;
/// Message envelope. All messages sent over the network are wrapped in this type.
#[derive(Debug, Serialize, Deserialize)]
@ -104,9 +105,7 @@ pub enum Message {
/// User signing.
user: UserId,
/// Updated refs.
refs: storage::Refs,
/// Signature over the refs.
signature: crypto::Signature,
refs: SignedRefs<crypto::Unverified>,
},
}

14
node/src/protocol/peer.rs
View File

@ -194,18 +194,8 @@ impl Peer {
}));
}
}
(
PeerState::Negotiated { git, .. },
Message::RefsUpdate {
proj,
user,
refs,
signature,
},
) => {
let bytes = serde_json::to_vec(&refs).unwrap();
if user.verify(&signature, &bytes).is_ok() {
(PeerState::Negotiated { git, .. }, Message::RefsUpdate { proj, user, refs }) => {
if refs.verified(&user).is_ok() {
// TODO: Buffer/throttle fetches.
// TODO: Also pass the updated refs so that we can check whether
// we need to fetch or not.

9
node/src/rad.rs
View File

@ -4,9 +4,11 @@ use git_url::Url;
use nonempty::NonEmpty;
use thiserror::Error;
use crate::crypto::Verified;
use crate::git;
use crate::identity::ProjId;
use crate::storage::git::RADICLE_ID_REF;
use crate::storage::refs::SignedRefs;
use crate::storage::{BranchName, ReadRepository as _};
use crate::{identity, storage};
@ -37,7 +39,7 @@ pub fn init<S: storage::WriteStorage>(
description: &str,
default_branch: BranchName,
storage: S,
) -> Result<ProjId, InitError> {
) -> Result<(ProjId, SignedRefs<Verified>), InitError> {
let user_id = storage.user_id();
let delegate = identity::Delegate {
// TODO: Use actual user name.
@ -114,8 +116,9 @@ pub fn init<S: storage::WriteStorage>(
],
None,
)?;
let signed = storage.sign_refs(&project)?;
Ok(id)
Ok((id, signed))
}
#[cfg(test)]
@ -136,7 +139,7 @@ mod tests {
let head = git::commit(&repo, &head, "Second commit", "anonymous").unwrap();
let _branch = repo.branch("master", &head, false).unwrap();
init(
let (_id, _refs) = init(
&repo,
"acme",
"Acme's repo",

109
node/src/storage.rs
View File

@ -1,4 +1,5 @@
pub mod git;
pub mod refs;
use std::collections::hash_map;
use std::io;
@ -6,19 +7,21 @@ use std::marker::PhantomData;
use std::ops::{Deref, DerefMut};
use std::path::Path;
use git_url::Url;
use once_cell::sync::Lazy;
use radicle_git_ext as git_ext;
use serde::{Deserialize, Serialize};
use thiserror::Error;
pub use radicle_git_ext::Oid;
use crate::collections::HashMap;
use crate::crypto::{self, Unverified, Verified};
use crate::git::RefError;
use crate::git::Url;
use crate::identity;
use crate::identity::{ProjId, ProjIdError, UserId};
use crate::storage::refs::Refs;
pub static IDENTITY_PATH: Lazy<&Path> = Lazy::new(|| Path::new(".rad/identity.toml"));
use self::refs::SignedRefs;
pub type BranchName = String;
pub type Inventory = Vec<ProjId>;
@ -30,6 +33,8 @@ pub enum Error {
InvalidRef,
#[error("git reference error: {0}")]
Ref(#[from] RefError),
#[error(transparent)]
Refs(#[from] refs::Error),
#[error("git: {0}")]
Git(#[from] git2::Error),
#[error("id: {0}")]
@ -42,28 +47,38 @@ pub enum Error {
InvalidHead,
}
pub type Refs = HashMap<RefName, Oid>;
pub type RemoteId = UserId;
pub type RefName = String;
/// Verified (used as type witness).
#[derive(Debug, Copy, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub struct Verified;
/// Unverified (used as type witness).
#[derive(Debug, Copy, Clone, PartialEq, Eq, Serialize, Deserialize)]
pub struct Unverified;
/// Project remotes. Tracks the git state of a project.
#[derive(Debug, Clone, PartialEq, Eq)]
pub struct Remotes<V>(HashMap<RemoteId, Remote<V>>);
impl Remotes<Unverified> {
pub fn new(remotes: HashMap<RemoteId, Remote<Unverified>>) -> Self {
impl<V> Deref for Remotes<V> {
type Target = HashMap<RemoteId, Remote<V>>;
fn deref(&self) -> &Self::Target {
&self.0
}
}
impl<V> Remotes<V> {
pub fn new(remotes: HashMap<RemoteId, Remote<V>>) -> Self {
Self(remotes)
}
}
impl Default for Remotes<Unverified> {
impl Remotes<Verified> {
pub fn unverified(self) -> Remotes<Unverified> {
Remotes(
self.into_iter()
.map(|(id, r)| (id, r.unverified()))
.collect(),
)
}
}
impl<V> Default for Remotes<V> {
fn default() -> Self {
Self(HashMap::default())
}
@ -90,13 +105,25 @@ impl Into<HashMap<String, Remote<Unverified>>> for Remotes<Unverified> {
}
}
#[allow(clippy::from_over_into)]
impl<V> Into<HashMap<RemoteId, Refs>> for Remotes<V> {
fn into(self) -> HashMap<RemoteId, Refs> {
let mut remotes = HashMap::with_hasher(fastrand::Rng::new().into());
for (k, v) in self.into_iter() {
remotes.insert(k, v.refs.into());
}
remotes
}
}
/// A project remote.
#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq)]
pub struct Remote<V> {
/// ID of remote.
pub id: UserId,
/// Git references published under this remote, and their hashes.
pub refs: HashMap<RefName, Oid>,
pub refs: SignedRefs<V>,
/// Whether this remote is of a project delegate.
pub delegate: bool,
/// Whether the remote is verified or not, ie. whether its signed refs were checked.
@ -104,21 +131,45 @@ pub struct Remote<V> {
verified: PhantomData<V>,
}
impl Remote<Unverified> {
pub fn new(id: UserId, refs: HashMap<RefName, Oid>) -> Self {
impl<V> Remote<V> {
pub fn new(id: UserId, refs: impl Into<SignedRefs<V>>) -> Self {
Self {
id,
refs,
refs: refs.into(),
delegate: false,
verified: PhantomData,
}
}
}
impl Remote<Unverified> {
pub fn verified(self) -> Result<Remote<Verified>, crypto::Error> {
let refs = self.refs.verified(&self.id)?;
Ok(Remote {
id: self.id,
refs,
delegate: self.delegate,
verified: PhantomData,
})
}
}
impl Remote<Verified> {
pub fn unverified(self) -> Remote<Unverified> {
Remote {
id: self.id,
refs: self.refs.unverified(),
delegate: self.delegate,
verified: PhantomData,
}
}
}
pub trait ReadStorage {
fn user_id(&self) -> &UserId;
fn url(&self) -> Url;
fn get(&self, proj: &ProjId) -> Result<Option<Remotes<Unverified>>, Error>;
fn get(&self, proj: &ProjId) -> Result<Option<Remotes<Verified>>, Error>;
fn inventory(&self) -> Result<Inventory, Error>;
}
@ -126,16 +177,26 @@ pub trait WriteStorage: ReadStorage {
type Repository: WriteRepository;
fn repository(&self, proj: &ProjId) -> Result<Self::Repository, Error>;
fn sign_refs(&self, repository: &Self::Repository) -> Result<SignedRefs<Verified>, Error>;
}
pub trait ReadRepository {
fn path(&self) -> &Path;
fn remote(&self, user: &UserId) -> Result<Remote<Unverified>, Error>;
fn remotes(&self) -> Result<Remotes<Unverified>, Error>;
fn blob_at<'a>(&'a self, oid: Oid, path: &'a Path) -> Result<git2::Blob<'a>, git_ext::Error>;
fn reference(
&self,
user: &UserId,
reference: &str,
) -> Result<Option<git2::Reference>, git2::Error>;
fn reference_oid(&self, user: &UserId, reference: &str) -> Result<Option<Oid>, git2::Error>;
fn references(&self, user: &UserId) -> Result<Refs, Error>;
fn remote(&self, user: &UserId) -> Result<Remote<Verified>, refs::Error>;
fn remotes(&self) -> Result<Remotes<Verified>, refs::Error>;
}
pub trait WriteRepository: ReadRepository {
fn fetch(&mut self, url: &Url) -> Result<(), git2::Error>;
fn raw(&self) -> &git2::Repository;
}
impl<T, S> ReadStorage for T
@ -155,7 +216,7 @@ where
self.deref().inventory()
}
fn get(&self, proj: &ProjId) -> Result<Option<Remotes<Unverified>>, Error> {
fn get(&self, proj: &ProjId) -> Result<Option<Remotes<Verified>>, Error> {
self.deref().get(proj)
}
}
@ -170,6 +231,10 @@ where
fn repository(&self, proj: &ProjId) -> Result<Self::Repository, Error> {
self.deref().repository(proj)
}
fn sign_refs(&self, repository: &S::Repository) -> Result<SignedRefs<Verified>, Error> {
self.deref().sign_refs(repository)
}
}
#[cfg(test)]

239
node/src/storage/git.rs
View File

@ -1,28 +1,32 @@
use std::collections::BTreeMap;
use std::path::{Path, PathBuf};
use std::sync::Arc;
use std::{fmt, fs, io};
use git_ref_format::refspec;
use git_url::Url;
use once_cell::sync::Lazy;
use radicle_git_ext as git_ext;
pub use radicle_git_ext::Oid;
use crate::collections::HashMap;
use crate::crypto::Signer;
use crate::crypto::{Signer, Verified};
use crate::git;
use crate::identity::{ProjId, UserId};
use super::{
Error, Inventory, ReadRepository, ReadStorage, Remote, Remotes, Unverified, WriteRepository,
WriteStorage,
use crate::storage::refs;
use crate::storage::refs::{Refs, SignedRefs};
use crate::storage::{
Error, Inventory, ReadRepository, ReadStorage, Remote, Remotes, WriteRepository, WriteStorage,
};
use super::RemoteId;
pub static RADICLE_ID_REF: Lazy<refspec::PatternString> =
Lazy::new(|| refspec::pattern!("heads/radicle/id"));
pub static REMOTES_GLOB: Lazy<refspec::PatternString> =
Lazy::new(|| refspec::pattern!("refs/remotes/*"));
pub static SIGNATURES_GLOB: Lazy<refspec::PatternString> =
Lazy::new(|| refspec::pattern!("refs/remotes/*/radicle/signature"));
pub struct Storage {
path: PathBuf,
@ -40,16 +44,28 @@ impl ReadStorage for Storage {
self.signer.public_key()
}
fn url(&self) -> Url {
Url {
fn url(&self) -> git::Url {
git::Url {
scheme: git_url::Scheme::File,
host: Some(self.path.to_string_lossy().to_string()),
..Url::default()
..git::Url::default()
}
}
fn get(&self, _id: &ProjId) -> Result<Option<Remotes<Unverified>>, Error> {
todo!()
fn get(&self, id: &ProjId) -> Result<Option<Remotes<Verified>>, Error> {
// TODO: Don't create a repo here if it doesn't exist?
// Perhaps for checking we could have a `contains` method?
match self.repository(id) {
Ok(r) => {
let remotes = r.remotes()?;
if remotes.is_empty() {
Ok(None)
} else {
Ok(Some(remotes))
}
}
Err(e) => Err(e),
}
}
fn inventory(&self) -> Result<Inventory, Error> {
@ -63,10 +79,23 @@ impl WriteStorage for Storage {
fn repository(&self, proj: &ProjId) -> Result<Self::Repository, Error> {
Repository::open(self.path.join(proj.to_string()))
}
fn sign_refs(&self, repository: &Repository) -> Result<SignedRefs<Verified>, Error> {
let remote = self.signer.public_key();
let refs = repository.references(remote)?;
let signed = refs.signed(self.signer.clone())?;
signed.save(remote, repository)?;
Ok(signed)
}
}
impl Storage {
pub fn open<P: AsRef<Path>>(path: P, signer: impl Signer) -> Result<Self, io::Error> {
pub fn open<P: AsRef<Path>, S: Signer + 'static>(
path: P,
signer: S,
) -> Result<Self, io::Error> {
let path = path.as_ref().to_path_buf();
match fs::create_dir_all(&path) {
@ -89,6 +118,13 @@ impl Storage {
self.signer.clone()
}
pub fn with_signer(&self, signer: impl Signer + 'static) -> Self {
Self {
path: self.path.clone(),
signer: Arc::new(signer),
}
}
pub fn projects(&self) -> Result<Vec<ProjId>, Error> {
let mut projects = Vec::new();
@ -100,10 +136,28 @@ impl Storage {
}
Ok(projects)
}
pub fn inspect(&self) -> Result<(), Error> {
for proj in self.projects()? {
let repo = self.repository(&proj)?;
for r in repo.raw().references()? {
let r = r?;
let name = r.name().ok_or(Error::InvalidRef)?;
let oid = r.target().ok_or(Error::InvalidRef)?;
println!("{} {} {}", proj, oid, name);
}
}
Ok(())
}
}
pub struct Repository {
pub(crate) backend: git2::Repository,
// TODO: Add project id here so we can refer to it
// in a bunch of places. We could write it to the
// git config for later.
}
impl Repository {
@ -117,6 +171,11 @@ impl Repository {
.no_reinit(true)
.external_template(false),
)?;
let mut config = backend.config()?;
// TODO: Get ahold of user name and/or key.
config.set_str("user.name", "radicle")?;
config.set_str("user.email", "radicle@localhost")?;
Ok(backend)
}
@ -127,15 +186,15 @@ impl Repository {
Ok(Self { backend })
}
pub fn find_reference(&self, remote: &UserId, name: &str) -> Result<Oid, Error> {
let name = format!("refs/remotes/{}/{}", remote, name);
let target = self
.backend
.find_reference(&name)?
.target()
.ok_or(Error::InvalidRef)?;
pub fn inspect(&self) -> Result<(), Error> {
for r in self.backend.references()? {
let r = r?;
let name = r.name().ok_or(Error::InvalidRef)?;
let oid = r.target().ok_or(Error::InvalidRef)?;
Ok(target.into())
println!("{} {}", oid, name);
}
Ok(())
}
}
@ -144,38 +203,69 @@ impl ReadRepository for Repository {
self.backend.path()
}
fn remote(&self, user: &UserId) -> Result<Remote<Unverified>, Error> {
// TODO: Only fetch standard refs.
fn blob_at<'a>(&'a self, oid: Oid, path: &'a Path) -> Result<git2::Blob<'a>, git_ext::Error> {
git_ext::Blob::At {
object: oid.into(),
path,
}
.get(&self.backend)
}
fn reference(
&self,
remote: &RemoteId,
name: &str,
) -> Result<Option<git2::Reference>, git2::Error> {
let name = format!("refs/remotes/{remote}/{name}");
self.backend.find_reference(&name).map(Some).or_else(|e| {
if git_ext::is_not_found_err(&e) {
Ok(None)
} else {
Err(e)
}
})
}
fn reference_oid(&self, user: &RemoteId, reference: &str) -> Result<Option<Oid>, git2::Error> {
let reference = self.reference(user, reference)?;
Ok(reference.and_then(|r| r.target().map(|o| o.into())))
}
fn remote(&self, remote: &RemoteId) -> Result<Remote<Verified>, refs::Error> {
let refs = SignedRefs::load(remote, self)?;
Ok(Remote::new(*remote, refs))
}
fn references(&self, remote: &RemoteId) -> Result<Refs, Error> {
// TODO: Only return known refs, eg. heads/ rad/ tags/ etc..
let entries = self
.backend
.references_glob(format!("refs/remotes/{}/*", user).as_str())?;
let mut refs = HashMap::default();
.references_glob(format!("refs/remotes/{remote}/*").as_str())?;
let mut refs = BTreeMap::new();
for e in entries {
let e = e?;
let name = e.name().ok_or(Error::InvalidRef)?;
let (_, refname) = git::parse_ref::<UserId>(name)?;
let (_, refname) = git::parse_ref::<RemoteId>(name)?;
let oid = e.target().ok_or(Error::InvalidRef)?;
refs.insert(refname.to_string(), oid.into());
}
Ok(Remote::new(*user, refs))
Ok(refs.into())
}
fn remotes(&self) -> Result<Remotes<Unverified>, Error> {
let refs = self.backend.references_glob(REMOTES_GLOB.as_str())?;
fn remotes(&self) -> Result<Remotes<Verified>, refs::Error> {
// TODO: Should use the id glob here instead of signature.
let refs = self.backend.references_glob(SIGNATURES_GLOB.as_str())?;
let mut remotes = HashMap::default();
for r in refs {
let r = r?;
let name = r.name().ok_or(Error::InvalidRef)?;
let (id, refname) = git::parse_ref::<UserId>(name)?;
let entry = remotes
.entry(id)
.or_insert_with(|| Remote::new(id, HashMap::default()));
let oid = r.target().ok_or(Error::InvalidRef)?;
let name = r.name().ok_or(refs::Error::InvalidRef)?;
let (id, _) = git::parse_ref::<RemoteId>(name)?;
let remote = self.remote(&id)?;
entry.refs.insert(refname.to_string(), oid.into());
remotes.insert(id, remote);
}
Ok(Remotes::new(remotes))
}
@ -183,7 +273,7 @@ impl ReadRepository for Repository {
impl WriteRepository for Repository {
/// Fetch all remotes of a project from the given URL.
fn fetch(&mut self, url: &Url) -> Result<(), git2::Error> {
fn fetch(&mut self, url: &git::Url) -> Result<(), git2::Error> {
// TODO: Have function to fetch specific remotes.
// TODO: Return meaningful info on success.
//
@ -207,6 +297,10 @@ impl WriteRepository for Repository {
Ok(())
}
fn raw(&self) -> &git2::Repository {
&self.backend
}
}
impl From<git2::Repository> for Repository {
@ -219,28 +313,34 @@ impl From<git2::Repository> for Repository {
mod tests {
use super::*;
use crate::git;
use crate::storage::refs::SIGNATURE_REF;
use crate::storage::{ReadStorage, WriteRepository};
use crate::test::arbitrary;
use crate::test::crypto::MockSigner;
use crate::test::fixtures;
use git_url::Url;
#[test]
fn test_list_remotes() {
fn test_remote_refs() {
let dir = tempfile::tempdir().unwrap();
let storage = fixtures::storage(dir.path());
let inv = storage.inventory().unwrap();
let proj = inv.first().unwrap();
let refs = git::list_remotes(&Url {
let mut refs = git::remote_refs(&git::Url {
host: Some(dir.path().to_string_lossy().to_string()),
scheme: git_url::Scheme::File,
path: format!("/{}", proj).into(),
..Url::default()
..git::Url::default()
})
.unwrap();
let remotes = storage.repository(proj).unwrap().remotes().unwrap();
let project = storage.repository(proj).unwrap();
let remotes = project.remotes().unwrap();
assert_eq!(refs, remotes);
// Strip the remote refs of sigrefs so we can compare them.
for remote in refs.values_mut() {
remote.remove(SIGNATURE_REF).unwrap();
}
assert_eq!(refs, remotes.into());
}
#[test]
@ -256,27 +356,56 @@ mod tests {
// Have Bob fetch Alice's refs.
bob.repository(proj)
.unwrap()
.fetch(&Url {
.fetch(&git::Url {
host: Some(alice.path().to_string_lossy().to_string()),
scheme: git_url::Scheme::File,
path: format!("/{}", proj).into(),
..Url::default()
..git::Url::default()
})
.unwrap();
for (id, _) in remotes.into_iter() {
let alice_oid = alice
.repository(proj)
.unwrap()
.find_reference(&id, refname)
.unwrap();
let bob_oid = bob
.repository(proj)
.unwrap()
.find_reference(&id, refname)
.unwrap();
let alice_repo = alice.repository(proj).unwrap();
let alice_oid = alice_repo.reference(&id, refname).unwrap().unwrap();
assert_eq!(alice_oid, bob_oid);
let bob_repo = bob.repository(proj).unwrap();
let bob_oid = bob_repo.reference(&id, refname).unwrap().unwrap();
assert_eq!(alice_oid.target(), bob_oid.target());
}
}
#[test]
fn test_sign_refs() {
let tmp = tempfile::tempdir().unwrap();
let mut rng = fastrand::Rng::new();
let signer = MockSigner::new(&mut rng);
let storage = Storage::open(tmp.path(), signer).unwrap();
let proj_id = arbitrary::gen::<ProjId>(1);
let alice = *storage.user_id();
let project = storage.repository(&proj_id).unwrap();
let backend = &project.backend;
let sig = git2::Signature::now(&alice.to_string(), "anonymous@radicle.xyz").unwrap();
let head = git::initial_commit(backend, &sig).unwrap();
let head = git::commit(backend, &head, "Second commit", &alice.to_string()).unwrap();
backend
.reference(
&format!("refs/remotes/{alice}/heads/master"),
head.id(),
false,
"test",
)
.unwrap();
let signed = storage.sign_refs(&project).unwrap();
let remote = project.remote(&alice).unwrap();
let mut unsigned = project.references(&alice).unwrap();
// The signed refs doesn't contain the signature ref itself.
unsigned.remove(SIGNATURE_REF).unwrap();
assert_eq!(remote.refs, signed);
assert_eq!(*remote.refs, unsigned);
}
}

318
node/src/storage/refs.rs Normal file
View File

@ -0,0 +1,318 @@
use std::collections::BTreeMap;
use std::fmt::Debug;
use std::io;
use std::io::{BufRead, BufReader};
use std::marker::PhantomData;
use std::ops::{Deref, DerefMut};
use std::path::Path;
use std::str::FromStr;
use radicle_git_ext as git_ext;
use serde::{Deserialize, Serialize};
use thiserror::Error;
use crate::crypto;
use crate::crypto::{PublicKey, Signature, Signer, Unverified, Verified};
use crate::git;
use crate::git::Oid;
use crate::storage;
use crate::storage::{ReadRepository, RemoteId, WriteRepository};
pub const SIGNATURE_REF: &str = "radicle/signature";
pub const REFS_BLOB_PATH: &str = "refs";
pub const SIGNATURE_BLOB_PATH: &str = "signature";
#[derive(Debug)]
pub enum Updated {
/// The computed [`Refs`] were stored as a new commit.
Updated { oid: Oid },
/// The stored [`Refs`] were the same as the computed ones, so no new commit
/// was created.
Unchanged { oid: Oid },
}
#[derive(Debug, Error)]
pub enum Error {
#[error("invalid signature: {0}")]
InvalidSignature(#[from] crypto::Error),
#[error("canonical refs: {0}")]
Canonical(#[from] canonical::Error),
#[error("invalid reference")]
InvalidRef,
#[error("invalid reference: {0}")]
Ref(#[from] git::RefError),
#[error(transparent)]
Git(#[from] git2::Error),
#[error(transparent)]
GitExt(#[from] git_ext::Error),
#[error("refs were not found")]
NotFound,
}
/// The published state of a local repository.
#[derive(Default, Clone, Debug, PartialEq, Eq, Serialize, Deserialize)]
pub struct Refs(BTreeMap<String, Oid>);
impl Refs {
/// Verify the given signature on these refs, and return [`SignedRefs`] on success.
pub fn verified(
self,
signer: &PublicKey,
signature: Signature,
) -> Result<SignedRefs<Verified>, Error> {
let refs = self;
let msg = refs.canonical();
match signer.verify(&signature, &msg) {
Ok(()) => Ok(SignedRefs {
refs,
signature,
_verified: PhantomData,
}),
Err(e) => Err(e.into()),
}
}
/// Sign these refs with the given signer and return [`SignedRefs`].
pub fn signed<S>(self, signer: S) -> Result<SignedRefs<Verified>, Error>
where
S: Signer,
{
let refs = self;
let msg = refs.canonical();
let signature = signer.sign(&msg);
Ok(SignedRefs {
refs,
signature,
_verified: PhantomData,
})
}
/// Create refs from a canonical representation.
pub fn from_canonical(bytes: &[u8]) -> Result<Self, canonical::Error> {
let reader = BufReader::new(bytes);
let mut refs = BTreeMap::new();
for line in reader.lines() {
let line = line?;
let (oid, name) = line
.split_once(' ')
.ok_or(canonical::Error::InvalidFormat)?;
let name = name.to_owned();
let oid = Oid::from_str(oid)?;
refs.insert(name, oid);
}
Ok(Self(refs))
}
pub fn canonical(&self) -> Vec<u8> {
let mut buf = String::new();
let refs = self.iter().filter(|(name, _)| *name != SIGNATURE_REF);
for (name, oid) in refs {
buf.push_str(&oid.to_string());
buf.push(' ');
buf.push_str(name);
buf.push('\n');
}
buf.into_bytes()
}
}
impl From<Refs> for BTreeMap<String, Oid> {
fn from(refs: Refs) -> Self {
refs.0
}
}
impl<V> From<SignedRefs<V>> for Refs {
fn from(signed: SignedRefs<V>) -> Self {
signed.refs
}
}
impl From<BTreeMap<String, Oid>> for Refs {
fn from(refs: BTreeMap<String, Oid>) -> Self {
Self(refs)
}
}
impl Deref for Refs {
type Target = BTreeMap<String, Oid>;
fn deref(&self) -> &Self::Target {
&self.0
}
}
impl DerefMut for Refs {
fn deref_mut(&mut self) -> &mut Self::Target {
&mut self.0
}
}
/// Combination of [`Refs`] and a [`Signature`]. The signature is a cryptographic
/// signature over the refs. This allows us to easily verify if a set of refs
/// came from a particular user.
///
/// The type parameter keeps track of whether the signature was [`Verified`] or
/// [`Unverified`].
#[derive(Serialize, Deserialize, Debug, Clone, PartialEq, Eq)]
pub struct SignedRefs<V> {
refs: Refs,
signature: Signature,
#[serde(skip)]
_verified: PhantomData<V>,
}
impl SignedRefs<Unverified> {
pub fn new(refs: Refs, signature: Signature) -> Self {
Self {
refs,
signature,
_verified: PhantomData,
}
}
pub fn verified(self, signer: &PublicKey) -> Result<SignedRefs<Verified>, crypto::Error> {
let canonical = self.refs.canonical();
match signer.verify(&self.signature, &canonical) {
Ok(()) => Ok(SignedRefs {
refs: self.refs,
signature: self.signature,
_verified: PhantomData,
}),
Err(e) => Err(e),
}
}
}
impl SignedRefs<Verified> {
pub fn load<S>(remote: &RemoteId, repo: &S) -> Result<Self, Error>
where
S: ReadRepository,
{
if let Some(oid) = repo.reference_oid(remote, SIGNATURE_REF)? {
Self::load_at(oid, remote, repo)
} else {
Err(Error::NotFound)
}
}
pub fn load_at<S>(oid: Oid, remote: &RemoteId, repo: &S) -> Result<Self, Error>
where
S: storage::ReadRepository,
{
let refs = repo.blob_at(oid, Path::new(REFS_BLOB_PATH))?;
let signature = repo.blob_at(oid, Path::new(SIGNATURE_BLOB_PATH))?;
let signature = crypto::Signature::try_from(signature.content())?;
match remote.verify(&signature, refs.content()) {
Ok(()) => {
let refs = Refs::from_canonical(refs.content())?;
Ok(Self {
refs,
signature,
_verified: PhantomData,
})
}
Err(e) => Err(e.into()),
}
}
/// Save the signed refs to disk.
/// This creates a new commit on the signed refs branch, and updates the branch pointer.
pub fn save<S: WriteRepository>(
&self,
// TODO: This should be part of the signed refs.
remote: &RemoteId,
repo: &S,
) -> Result<Updated, Error> {
let parent: Option<git2::Commit> = repo
.reference(remote, SIGNATURE_REF)?
.map(|r| r.peel_to_commit())
.transpose()?;
let tree = {
let raw = repo.raw();
let refs_blob_oid = raw.blob(&self.canonical())?;
let sig_blob_oid = raw.blob(&self.signature.to_bytes())?;
let mut builder = raw.treebuilder(None)?;
builder.insert(REFS_BLOB_PATH, refs_blob_oid, 0o100_644)?;
builder.insert(SIGNATURE_BLOB_PATH, sig_blob_oid, 0o100_644)?;
let oid = builder.write()?;
raw.find_tree(oid)
}?;
if let Some(ref parent) = parent {
if parent.tree()?.id() == tree.id() {
return Ok(Updated::Unchanged {
oid: parent.id().into(),
});
}
}
let sigref = format!("refs/remotes/{remote}/{SIGNATURE_REF}");
let author = repo.raw().signature()?;
let commit = repo.raw().commit(
Some(&sigref),
&author,
&author,
&format!("Update {} for {}", SIGNATURE_REF, remote),
&tree,
&parent.iter().collect::<Vec<&git2::Commit>>(),
);
match commit {
Ok(oid) => Ok(Updated::Updated { oid: oid.into() }),
Err(e) => match (e.class(), e.code()) {
(git2::ErrorClass::Object, git2::ErrorCode::Modified) => {
log::warn!("Concurrent modification of refs: {:?}", e);
Err(Error::Git(e))
}
_ => Err(e.into()),
},
}
}
pub fn unverified(self) -> SignedRefs<Unverified> {
SignedRefs {
refs: self.refs,
signature: self.signature,
_verified: PhantomData,
}
}
}
impl<V> Deref for SignedRefs<V> {
type Target = Refs;
fn deref(&self) -> &Self::Target {
&self.refs
}
}
pub mod canonical {
use super::*;
#[derive(Debug, thiserror::Error)]
pub enum Error {
#[error("invalid canonical format")]
InvalidFormat,
#[error(transparent)]
Io(#[from] io::Error),
#[error(transparent)]
Git(#[from] git2::Error),
}
}
// TODO: Test canonical/from_canonical

64
node/src/test/arbitrary.rs
View File

@ -1,15 +1,21 @@
use std::collections::HashSet;
use std::collections::{BTreeMap, HashSet};
use std::hash::Hash;
use std::ops::RangeBounds;
use quickcheck::Arbitrary;
use crate::collections::HashMap;
use crate::crypto::PublicKey;
use crate::crypto::{self, Signer};
use crate::crypto::{PublicKey, SecretKey};
use crate::hash;
use crate::identity::{ProjId, UserId};
use crate::identity::ProjId;
use crate::storage;
use crate::storage::refs::Refs;
use crate::test::storage::MockStorage;
pub fn set<T: Eq + Hash + quickcheck::Arbitrary>(range: impl RangeBounds<usize>) -> HashSet<T> {
use super::crypto::MockSigner;
pub fn set<T: Eq + Hash + Arbitrary>(range: impl RangeBounds<usize>) -> HashSet<T> {
let size = fastrand::usize(range);
let mut set = HashSet::with_capacity(size);
let mut g = quickcheck::Gen::new(size);
@ -20,35 +26,34 @@ pub fn set<T: Eq + Hash + quickcheck::Arbitrary>(range: impl RangeBounds<usize>)
set
}
pub fn gen<T: quickcheck::Arbitrary>(size: usize) -> T {
pub fn gen<T: Arbitrary>(size: usize) -> T {
let mut gen = quickcheck::Gen::new(size);
T::arbitrary(&mut gen)
}
impl quickcheck::Arbitrary for storage::Remotes<storage::Unverified> {
impl Arbitrary for storage::Remotes<crypto::Verified> {
fn arbitrary(g: &mut quickcheck::Gen) -> Self {
let remotes: HashMap<storage::RemoteId, storage::Remote<storage::Unverified>> =
quickcheck::Arbitrary::arbitrary(g);
let remotes: HashMap<storage::RemoteId, storage::Remote<crypto::Verified>> =
Arbitrary::arbitrary(g);
storage::Remotes::new(remotes)
}
}
impl quickcheck::Arbitrary for MockStorage {
impl Arbitrary for MockStorage {
fn arbitrary(g: &mut quickcheck::Gen) -> Self {
let inventory = quickcheck::Arbitrary::arbitrary(g);
let inventory = Arbitrary::arbitrary(g);
MockStorage::new(inventory)
}
}
impl quickcheck::Arbitrary for storage::Remote<storage::Unverified> {
impl Arbitrary for Refs {
fn arbitrary(g: &mut quickcheck::Gen) -> Self {
let rng = fastrand::Rng::with_seed(u64::arbitrary(g));
let mut refs: HashMap<storage::BranchName, storage::Oid> = HashMap::with_hasher(rng.into());
let mut refs: BTreeMap<storage::RefName, storage::Oid> = BTreeMap::new();
let mut bytes: [u8; 20] = [0; 20];
// TODO: Use refs other than branch names.
let names = &["master", "dev", "feature/1", "feature/2", "feature/3"];
let id = UserId::arbitrary(g);
for _ in 0..g.size().min(2) {
if let Some(name) = g.choose(names) {
@ -59,25 +64,46 @@ impl quickcheck::Arbitrary for storage::Remote<storage::Unverified> {
refs.insert(name.to_string(), oid);
}
}
storage::Remote::new(id, refs)
Self::from(refs)
}
}
impl quickcheck::Arbitrary for ProjId {
impl Arbitrary for storage::Remote<crypto::Verified> {
fn arbitrary(g: &mut quickcheck::Gen) -> Self {
let refs = Refs::arbitrary(g);
let signer = MockSigner::arbitrary(g);
let signed = refs.signed(&signer).unwrap();
storage::Remote::new(*signer.public_key(), signed)
}
}
impl Arbitrary for MockSigner {
fn arbitrary(g: &mut quickcheck::Gen) -> Self {
let mut bytes: [u8; 32] = [0; 32];
for byte in &mut bytes {
*byte = u8::arbitrary(g);
}
MockSigner::from(SecretKey::from(bytes))
}
}
impl Arbitrary for ProjId {
fn arbitrary(g: &mut quickcheck::Gen) -> Self {
let digest = hash::Digest::arbitrary(g);
ProjId::from(digest)
}
}
impl quickcheck::Arbitrary for hash::Digest {
impl Arbitrary for hash::Digest {
fn arbitrary(g: &mut quickcheck::Gen) -> Self {
let bytes: Vec<u8> = quickcheck::Arbitrary::arbitrary(g);
let bytes: Vec<u8> = Arbitrary::arbitrary(g);
hash::Digest::new(&bytes)
}
}
impl quickcheck::Arbitrary for PublicKey {
impl Arbitrary for PublicKey {
fn arbitrary(g: &mut quickcheck::Gen) -> Self {
use ed25519_consensus::SigningKey;

28
node/src/test/crypto.rs
View File

@ -2,7 +2,7 @@ use ed25519_consensus as ed25519;
use crate::crypto::{PublicKey, SecretKey, Signer};
#[derive(Debug)]
#[derive(Debug, Clone)]
pub struct MockSigner {
pk: PublicKey,
sk: SecretKey,
@ -15,12 +15,14 @@ impl MockSigner {
for byte in &mut bytes {
*byte = rng.u8(..);
}
let sk = SecretKey::from(bytes);
Self::from(SecretKey::from(bytes))
}
}
Self {
pk: sk.verification_key().into(),
sk,
}
impl From<SecretKey> for MockSigner {
fn from(sk: SecretKey) -> Self {
let pk = sk.verification_key().into();
Self { sk, pk }
}
}
@ -36,6 +38,20 @@ impl Default for MockSigner {
}
}
impl PartialEq for MockSigner {
fn eq(&self, other: &Self) -> bool {
self.pk == other.pk
}
}
impl Eq for MockSigner {}
impl std::hash::Hash for MockSigner {
fn hash<H: std::hash::Hasher>(&self, state: &mut H) {
self.pk.hash(state)
}
}
impl Signer for MockSigner {
fn public_key(&self) -> &PublicKey {
&self.pk

49
node/src/test/fixtures.rs
View File

@ -1,59 +1,66 @@
use std::path::Path;
use crate::git;
use crate::identity::{ProjId, UserId};
use crate::identity::ProjId;
use crate::storage::git::Storage;
use crate::storage::WriteStorage;
use crate::storage::{ReadStorage, WriteStorage};
use crate::test::arbitrary;
use crate::test::crypto::MockSigner;
pub fn storage<P: AsRef<Path>>(path: P) -> Storage {
let path = path.as_ref();
let storage = Storage::open(path, MockSigner::default()).unwrap();
let proj_ids = arbitrary::set::<ProjId>(3..5);
let user_ids = arbitrary::set::<UserId>(1..3);
let signers = arbitrary::set::<MockSigner>(1..3);
let mut storages = signers
.into_iter()
.map(|s| Storage::open(path, s).unwrap())
.collect::<Vec<_>>();
crate::test::logger::init(log::Level::Debug);
for proj in proj_ids.iter() {
log::debug!("creating {}...", proj);
let repo = storage.repository(proj).unwrap();
for storage in &storages {
let remote = storage.user_id();
for user in user_ids.iter() {
let repo = &repo.backend;
let sig = git2::Signature::now(&user.to_string(), "anonymous@radicle.xyz").unwrap();
let head = git::initial_commit(repo, &sig).unwrap();
log::debug!("signer {}...", remote);
log::debug!("{}: creating {}...", proj, user);
for proj in proj_ids.iter() {
let repo = storage.repository(proj).unwrap();
let raw = &repo.backend;
let sig = git2::Signature::now(&remote.to_string(), "anonymous@radicle.xyz").unwrap();
let head = git::initial_commit(raw, &sig).unwrap();
repo.reference(
&format!("refs/remotes/{user}/heads/radicle/id"),
log::debug!("{}: creating {}...", remote, proj);
raw.reference(
&format!("refs/remotes/{remote}/heads/radicle/id"),
head.id(),
false,
"test",
)
.unwrap();
let head = git::commit(repo, &head, "Second commit", &user.to_string()).unwrap();
repo.reference(
&format!("refs/remotes/{user}/heads/master"),
let head = git::commit(raw, &head, "Second commit", &remote.to_string()).unwrap();
raw.reference(
&format!("refs/remotes/{remote}/heads/master"),
head.id(),
false,
"test",
)
.unwrap();
let head = git::commit(repo, &head, "Third commit", &user.to_string()).unwrap();
repo.reference(
&format!("refs/remotes/{user}/heads/patch/3"),
let head = git::commit(raw, &head, "Third commit", &remote.to_string()).unwrap();
raw.reference(
&format!("refs/remotes/{remote}/heads/patch/3"),
head.id(),
false,
"test",
)
.unwrap();
storage.sign_refs(&repo).unwrap();
}
}
storage
storages.pop().unwrap()
}
#[cfg(test)]

54
node/src/test/storage.rs
View File

@ -1,18 +1,19 @@
use git_url::Url;
use crate::crypto::Verified;
use crate::identity::{ProjId, UserId};
use crate::storage::refs;
use crate::storage::{
Error, Inventory, ReadRepository, ReadStorage, Remote, Remotes, Unverified, WriteRepository,
WriteStorage,
Error, Inventory, ReadRepository, ReadStorage, Remote, Remotes, WriteRepository, WriteStorage,
};
#[derive(Clone, Debug)]
pub struct MockStorage {
pub inventory: Vec<(ProjId, Remotes<Unverified>)>,
pub inventory: Vec<(ProjId, Remotes<Verified>)>,
}
impl MockStorage {
pub fn new(inventory: Vec<(ProjId, Remotes<Unverified>)>) -> Self {
pub fn new(inventory: Vec<(ProjId, Remotes<Verified>)>) -> Self {
Self { inventory }
}
@ -36,7 +37,7 @@ impl ReadStorage for MockStorage {
}
}
fn get(&self, proj: &ProjId) -> Result<Option<Remotes<Unverified>>, Error> {
fn get(&self, proj: &ProjId) -> Result<Option<Remotes<Verified>>, Error> {
if let Some((_, refs)) = self.inventory.iter().find(|(id, _)| id == proj) {
return Ok(Some(refs.clone()));
}
@ -60,6 +61,13 @@ impl WriteStorage for MockStorage {
fn repository(&self, _proj: &ProjId) -> Result<Self::Repository, Error> {
Ok(MockRepository {})
}
fn sign_refs(
&self,
_repository: &Self::Repository,
) -> Result<crate::storage::refs::SignedRefs<Verified>, Error> {
todo!()
}
}
pub struct MockRepository {}
@ -69,11 +77,39 @@ impl ReadRepository for MockRepository {
todo!()
}
fn remote(&self, _user: &UserId) -> Result<Remote<Unverified>, Error> {
fn remote(&self, _user: &UserId) -> Result<Remote<Verified>, refs::Error> {
todo!()
}
fn remotes(&self) -> Result<Remotes<Unverified>, Error> {
fn remotes(&self) -> Result<Remotes<Verified>, refs::Error> {
todo!()
}
fn blob_at<'a>(
&'a self,
_oid: radicle_git_ext::Oid,
_path: &'a std::path::Path,
) -> Result<git2::Blob<'a>, radicle_git_ext::Error> {
todo!()
}
fn reference(
&self,
_user: &UserId,
_reference: &str,
) -> Result<Option<git2::Reference>, git2::Error> {
todo!()
}
fn reference_oid(
&self,
_user: &UserId,
_reference: &str,
) -> Result<Option<radicle_git_ext::Oid>, git2::Error> {
todo!()
}
fn references(&self, _user: &UserId) -> Result<crate::storage::refs::Refs, Error> {
todo!()
}
}
@ -82,4 +118,8 @@ impl WriteRepository for MockRepository {
fn fetch(&mut self, _url: &Url) -> Result<(), git2::Error> {
Ok(())
}
fn raw(&self) -> &git2::Repository {
todo!()
}
}