BREAKING CHANGE(smart-proxy): move certificate persistence to an in-memory store and introduce consumer-managed certStore API; add default self-signed fallback cert and change ACME account handling

This commit is contained in:
2026-02-13 16:32:02 +00:00
parent e0af82c1ef
commit 0e058594c9
17 changed files with 296 additions and 397 deletions
+51 -191
View File
@@ -1,21 +1,7 @@
use std::collections::HashMap;
use std::path::{Path, PathBuf};
use serde::{Deserialize, Serialize};
use thiserror::Error;
#[derive(Debug, Error)]
pub enum CertStoreError {
#[error("Certificate not found for domain: {0}")]
NotFound(String),
#[error("IO error: {0}")]
Io(#[from] std::io::Error),
#[error("Invalid certificate: {0}")]
Invalid(String),
#[error("JSON error: {0}")]
Json(#[from] serde_json::Error),
}
/// Certificate metadata stored alongside certs on disk.
/// Certificate metadata stored alongside certs.
#[derive(Debug, Clone, Serialize, Deserialize)]
#[serde(rename_all = "camelCase")]
pub struct CertMetadata {
@@ -45,27 +31,18 @@ pub struct CertBundle {
pub metadata: CertMetadata,
}
/// Filesystem-backed certificate store.
/// In-memory certificate store.
///
/// File layout per domain:
/// ```text
/// {base_dir}/{domain}/
/// key.pem
/// cert.pem
/// ca.pem (optional)
/// metadata.json
/// ```
/// All persistence is owned by the consumer (TypeScript side).
/// This struct is a thin HashMap wrapper used as a runtime cache.
pub struct CertStore {
base_dir: PathBuf,
/// In-memory cache of loaded certs
cache: HashMap<String, CertBundle>,
}
impl CertStore {
/// Create a new cert store at the given directory.
pub fn new(base_dir: impl AsRef<Path>) -> Self {
/// Create a new empty cert store.
pub fn new() -> Self {
Self {
base_dir: base_dir.as_ref().to_path_buf(),
cache: HashMap::new(),
}
}
@@ -75,33 +52,9 @@ impl CertStore {
self.cache.get(domain)
}
/// Store a certificate to both cache and filesystem.
pub fn store(&mut self, domain: String, bundle: CertBundle) -> Result<(), CertStoreError> {
// Sanitize domain for directory name (replace wildcards)
let dir_name = domain.replace('*', "_wildcard_");
let cert_dir = self.base_dir.join(&dir_name);
// Create directory
std::fs::create_dir_all(&cert_dir)?;
// Write key
std::fs::write(cert_dir.join("key.pem"), &bundle.key_pem)?;
// Write cert
std::fs::write(cert_dir.join("cert.pem"), &bundle.cert_pem)?;
// Write CA cert if present
if let Some(ref ca) = bundle.ca_pem {
std::fs::write(cert_dir.join("ca.pem"), ca)?;
}
// Write metadata
let metadata_json = serde_json::to_string_pretty(&bundle.metadata)?;
std::fs::write(cert_dir.join("metadata.json"), metadata_json)?;
// Update cache
/// Store a certificate in the cache.
pub fn store(&mut self, domain: String, bundle: CertBundle) {
self.cache.insert(domain, bundle);
Ok(())
}
/// Check if a certificate exists for a domain.
@@ -109,68 +62,6 @@ impl CertStore {
self.cache.contains_key(domain)
}
/// Load all certificates from the base directory.
pub fn load_all(&mut self) -> Result<usize, CertStoreError> {
if !self.base_dir.exists() {
return Ok(0);
}
let entries = std::fs::read_dir(&self.base_dir)?;
let mut loaded = 0;
for entry in entries {
let entry = entry?;
let path = entry.path();
if !path.is_dir() {
continue;
}
let metadata_path = path.join("metadata.json");
let key_path = path.join("key.pem");
let cert_path = path.join("cert.pem");
// All three files must exist
if !metadata_path.exists() || !key_path.exists() || !cert_path.exists() {
continue;
}
// Load metadata
let metadata_str = std::fs::read_to_string(&metadata_path)?;
let metadata: CertMetadata = serde_json::from_str(&metadata_str)?;
// Load key and cert
let key_pem = std::fs::read_to_string(&key_path)?;
let cert_pem = std::fs::read_to_string(&cert_path)?;
// Load CA cert if present
let ca_path = path.join("ca.pem");
let ca_pem = if ca_path.exists() {
Some(std::fs::read_to_string(&ca_path)?)
} else {
None
};
let domain = metadata.domain.clone();
let bundle = CertBundle {
key_pem,
cert_pem,
ca_pem,
metadata,
};
self.cache.insert(domain, bundle);
loaded += 1;
}
Ok(loaded)
}
/// Get the base directory.
pub fn base_dir(&self) -> &Path {
&self.base_dir
}
/// Get the number of cached certificates.
pub fn count(&self) -> usize {
self.cache.len()
@@ -181,17 +72,15 @@ impl CertStore {
self.cache.iter()
}
/// Remove a certificate from cache and filesystem.
pub fn remove(&mut self, domain: &str) -> Result<bool, CertStoreError> {
let removed = self.cache.remove(domain).is_some();
if removed {
let dir_name = domain.replace('*', "_wildcard_");
let cert_dir = self.base_dir.join(&dir_name);
if cert_dir.exists() {
std::fs::remove_dir_all(&cert_dir)?;
}
}
Ok(removed)
/// Remove a certificate from the cache.
pub fn remove(&mut self, domain: &str) -> bool {
self.cache.remove(domain).is_some()
}
}
impl Default for CertStore {
fn default() -> Self {
Self::new()
}
}
@@ -215,100 +104,71 @@ mod tests {
}
#[test]
fn test_store_and_load_roundtrip() {
let tmp = tempfile::tempdir().unwrap();
let mut store = CertStore::new(tmp.path());
fn test_store_and_get() {
let mut store = CertStore::new();
let bundle = make_test_bundle("example.com");
store.store("example.com".to_string(), bundle.clone()).unwrap();
store.store("example.com".to_string(), bundle.clone());
// Verify files exist
let cert_dir = tmp.path().join("example.com");
assert!(cert_dir.join("key.pem").exists());
assert!(cert_dir.join("cert.pem").exists());
assert!(cert_dir.join("metadata.json").exists());
assert!(!cert_dir.join("ca.pem").exists()); // No CA cert
// Load into a fresh store
let mut store2 = CertStore::new(tmp.path());
let loaded = store2.load_all().unwrap();
assert_eq!(loaded, 1);
let loaded_bundle = store2.get("example.com").unwrap();
assert_eq!(loaded_bundle.key_pem, bundle.key_pem);
assert_eq!(loaded_bundle.cert_pem, bundle.cert_pem);
assert_eq!(loaded_bundle.metadata.domain, "example.com");
assert_eq!(loaded_bundle.metadata.source, CertSource::Static);
let loaded = store.get("example.com").unwrap();
assert_eq!(loaded.key_pem, bundle.key_pem);
assert_eq!(loaded.cert_pem, bundle.cert_pem);
assert_eq!(loaded.metadata.domain, "example.com");
assert_eq!(loaded.metadata.source, CertSource::Static);
}
#[test]
fn test_store_with_ca_cert() {
let tmp = tempfile::tempdir().unwrap();
let mut store = CertStore::new(tmp.path());
let mut store = CertStore::new();
let mut bundle = make_test_bundle("secure.com");
bundle.ca_pem = Some("-----BEGIN CERTIFICATE-----\nca-cert\n-----END CERTIFICATE-----\n".to_string());
store.store("secure.com".to_string(), bundle).unwrap();
store.store("secure.com".to_string(), bundle);
let cert_dir = tmp.path().join("secure.com");
assert!(cert_dir.join("ca.pem").exists());
let mut store2 = CertStore::new(tmp.path());
store2.load_all().unwrap();
let loaded = store2.get("secure.com").unwrap();
let loaded = store.get("secure.com").unwrap();
assert!(loaded.ca_pem.is_some());
}
#[test]
fn test_load_all_multiple_certs() {
let tmp = tempfile::tempdir().unwrap();
let mut store = CertStore::new(tmp.path());
fn test_multiple_certs() {
let mut store = CertStore::new();
store.store("a.com".to_string(), make_test_bundle("a.com")).unwrap();
store.store("b.com".to_string(), make_test_bundle("b.com")).unwrap();
store.store("c.com".to_string(), make_test_bundle("c.com")).unwrap();
store.store("a.com".to_string(), make_test_bundle("a.com"));
store.store("b.com".to_string(), make_test_bundle("b.com"));
store.store("c.com".to_string(), make_test_bundle("c.com"));
let mut store2 = CertStore::new(tmp.path());
let loaded = store2.load_all().unwrap();
assert_eq!(loaded, 3);
assert!(store2.has("a.com"));
assert!(store2.has("b.com"));
assert!(store2.has("c.com"));
}
#[test]
fn test_load_all_missing_directory() {
let mut store = CertStore::new("/nonexistent/path/to/certs");
let loaded = store.load_all().unwrap();
assert_eq!(loaded, 0);
assert_eq!(store.count(), 3);
assert!(store.has("a.com"));
assert!(store.has("b.com"));
assert!(store.has("c.com"));
}
#[test]
fn test_remove_cert() {
let tmp = tempfile::tempdir().unwrap();
let mut store = CertStore::new(tmp.path());
let mut store = CertStore::new();
store.store("remove-me.com".to_string(), make_test_bundle("remove-me.com")).unwrap();
store.store("remove-me.com".to_string(), make_test_bundle("remove-me.com"));
assert!(store.has("remove-me.com"));
let removed = store.remove("remove-me.com").unwrap();
let removed = store.remove("remove-me.com");
assert!(removed);
assert!(!store.has("remove-me.com"));
assert!(!tmp.path().join("remove-me.com").exists());
}
#[test]
fn test_wildcard_domain_storage() {
let tmp = tempfile::tempdir().unwrap();
let mut store = CertStore::new(tmp.path());
fn test_remove_nonexistent() {
let mut store = CertStore::new();
assert!(!store.remove("nonexistent.com"));
}
store.store("*.example.com".to_string(), make_test_bundle("*.example.com")).unwrap();
#[test]
fn test_wildcard_domain() {
let mut store = CertStore::new();
// Directory should use sanitized name
assert!(tmp.path().join("_wildcard_.example.com").exists());
store.store("*.example.com".to_string(), make_test_bundle("*.example.com"));
assert!(store.has("*.example.com"));
let mut store2 = CertStore::new(tmp.path());
store2.load_all().unwrap();
assert!(store2.has("*.example.com"));
let loaded = store.get("*.example.com").unwrap();
assert_eq!(loaded.metadata.domain, "*.example.com");
}
}