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feat(notsecrets): migrate sources to IdentitySource trait, add resolve_identities, remove legacy API

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- Replace AgeKeySource+retrieve() with IdentitySource+load() returning Box<dyn Identity>
- Rewrite bitwarden/file/prompt sources to implement new trait
- Add resolve_identities() public API with partial-success semantics
- Delete _legacy.rs and remove legacy re-exports from lib.rs
- Update integration tests to use new API

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Joseph O'Brien
2026-04-01 21:16:39 -04:00
parent e388d75cf1
commit f80ea02f07
7 changed files with 253 additions and 203 deletions
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126
crates/notsecrets/src/_legacy.rs
View File

@@ -1,126 +0,0 @@
use anyhow::{Context, Result, bail};
use std::path::{Path, PathBuf};
use std::process::Command;
pub trait AgeKeySource {
fn name(&self) -> &str;
fn retrieve(&self) -> Result<String>;
}
/// try each source in order; return the first success.
pub fn resolve_age_key(sources: Vec<Box<dyn AgeKeySource>>) -> Result<String> {
let mut last_err = String::new();
for source in sources {
match source.retrieve() {
Ok(key) => return Ok(key),
Err(e) => {
eprintln!(" [{}] {e}", source.name());
last_err = format!("{e}");
}
}
}
bail!("all age key sources failed; last error: {last_err}")
}
/// write the age key permission:0600
pub fn install_age_key(key: &str) -> Result<PathBuf> {
let path = dirs::home_dir()
.context("cannot find home directory")?
.join(".config/sops/age/keys.txt");
install_age_key_at(key, &path)?;
Ok(path)
}
/// Write the age key to `path` with mode 0600, never transiently world-readable.
/// The file is created with the correct permissions atomically via `OpenOptions`.
pub fn install_age_key_at(key: &str, path: &Path) -> Result<()> {
std::fs::create_dir_all(
path.parent()
.context("age keys.txt path has no parent directory")?,
)?;
#[cfg(unix)]
{
use std::io::Write;
use std::os::unix::fs::OpenOptionsExt;
let mut f = std::fs::OpenOptions::new()
.write(true)
.create(true)
.truncate(true)
.mode(0o600)
.open(path)?;
f.write_all(key.as_bytes())?;
}
#[cfg(not(unix))]
{
std::fs::write(path, key)?;
}
Ok(())
}
/// Build the argument list for `sops --decrypt -- <path>`.
/// Extracted for testability: callers can verify `--` is present without spawning sops.
pub fn sops_args(sops_file: &Path) -> Result<Vec<String>> {
let path_str = sops_file
.to_str()
.ok_or_else(|| anyhow::anyhow!("sops path is not valid UTF-8"))?
.to_string();
Ok(vec!["--decrypt".to_string(), "--".to_string(), path_str])
}
/// Run `sops --decrypt -- <sops_file>` and return the decrypted content.
pub fn decrypt_sops(sops_file: &Path) -> Result<String> {
let args = sops_args(sops_file)?;
let output = Command::new("sops")
.args(&args)
.output()
.context("failed to run sops")?;
if !output.status.success() {
bail!(
"sops decrypt failed: {}",
String::from_utf8_lossy(&output.stderr)
);
}
Ok(String::from_utf8(output.stdout)?)
}
#[cfg(test)]
mod tests {
use super::*;
use std::os::unix::fs::PermissionsExt;
/// Issue #3: age key file must never be world-readable, even transiently.
#[test]
fn install_age_key_never_world_readable() {
let dir = tempfile::tempdir().unwrap();
let path = dir.path().join(".config/sops/age/keys.txt");
std::fs::create_dir_all(path.parent().unwrap()).unwrap();
install_age_key_at("AGE-SECRET-KEY-TEST", &path).unwrap();
let mode = std::fs::metadata(&path).unwrap().permissions().mode();
assert_eq!(
mode & 0o777,
0o600,
"key file must be mode 0600, got {:o}",
mode & 0o777
);
}
/// Issue #2: sops invocation must include -- before the path.
#[test]
fn decrypt_sops_args_include_separator() {
let path = std::path::Path::new("/some/file.sops.env");
let args = sops_args(path).unwrap();
assert_eq!(args[0], "--decrypt");
assert_eq!(args[1], "--");
assert_eq!(args[2], "/some/file.sops.env");
}
/// Issue #7: .context() should be used instead of .with_context(closure) for string literals.
#[test]
fn install_age_key_uses_context_not_with_context() {
assert!(true);
}
}

104
crates/notsecrets/src/lib.rs
View File

@@ -5,22 +5,96 @@ pub mod format;
pub mod identities;
pub mod recipients;
pub mod sources;
pub mod _legacy;
pub use error::AgeError;
pub use identities::{FileKey, Header, Identity, Stanza, X25519Identity, ScryptIdentity, SshEd25519Identity, SshRsaIdentity, EncryptedIdentity};
pub use decrypt::Decryptor;
pub use encrypt::Encryptor;
pub use recipients::{Recipient, X25519Recipient, ScryptRecipient, SshEd25519Recipient, SshRsaRecipient};
pub use sources::{BitwardenSource, FileSource, PromptSource};
// Legacy API — kept for notstrap compatibility until Task 12.
#[allow(deprecated)]
pub use _legacy::{
AgeKeySource,
install_age_key,
install_age_key_at,
resolve_age_key,
decrypt_sops,
sops_args,
pub use error::AgeError;
pub use identities::{
EncryptedIdentity, FileKey, Header, Identity, ScryptIdentity, SshEd25519Identity,
SshRsaIdentity, Stanza, X25519Identity,
};
pub use recipients::{
Recipient, ScryptRecipient, SshEd25519Recipient, SshRsaRecipient, X25519Recipient,
};
pub use sources::{BitwardenSource, FileSource, IdentitySource, PromptSource};
/// Try each `IdentitySource` in order; collect all identities that load successfully.
///
/// Returns an error only if all sources fail. Partial success is accepted because
/// not every source needs to hold the key for the target file.
pub fn resolve_identities(
sources: Vec<Box<dyn sources::IdentitySource>>,
) -> Result<Vec<Box<dyn Identity>>, AgeError> {
let mut identities: Vec<Box<dyn Identity>> = Vec::new();
let mut last_err: Option<AgeError> = None;
for source in sources {
match source.load() {
Ok(identity) => identities.push(identity),
Err(e) => {
eprintln!(" [{}] {e}", source.name());
last_err = Some(e);
}
}
}
if identities.is_empty() {
Err(last_err.unwrap_or(AgeError::SourceError {
name: "resolve_identities".to_string(),
source: anyhow::anyhow!("no sources provided"),
}))
} else {
Ok(identities)
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::sources::IdentitySource;
struct AlwaysFailSource;
impl IdentitySource for AlwaysFailSource {
fn name(&self) -> &str {
"always-fail"
}
fn load(&self) -> Result<Box<dyn Identity>, AgeError> {
Err(AgeError::SourceError {
name: "always-fail".to_string(),
source: anyhow::anyhow!("intentional failure"),
})
}
}
struct StaticX25519Source;
impl IdentitySource for StaticX25519Source {
fn name(&self) -> &str {
"static-x25519"
}
fn load(&self) -> Result<Box<dyn Identity>, AgeError> {
use rand::rngs::OsRng;
use x25519_dalek::StaticSecret;
Ok(Box::new(
crate::identities::x25519::X25519Identity::from_static_secret(
StaticSecret::random_from_rng(OsRng),
),
))
}
}
#[test]
fn resolve_identities_all_fail_returns_error() {
let sources: Vec<Box<dyn IdentitySource>> = vec![Box::new(AlwaysFailSource)];
assert!(resolve_identities(sources).is_err());
}
#[test]
fn resolve_identities_partial_success_returns_loaded() {
let sources: Vec<Box<dyn IdentitySource>> = vec![
Box::new(AlwaysFailSource),
Box::new(StaticX25519Source),
];
let ids = resolve_identities(sources).expect("at least one source succeeded");
assert_eq!(ids.len(), 1);
}
}

106
crates/notsecrets/src/sources/bitwarden.rs
View File

@@ -1,5 +1,7 @@
use crate::_legacy::AgeKeySource;
use anyhow::{Result, bail};
use crate::error::AgeError;
use crate::identities::Identity;
use crate::identities::x25519::X25519Identity;
use crate::sources::IdentitySource;
use std::process::Command;
pub struct BitwardenSource {
@@ -8,61 +10,101 @@ pub struct BitwardenSource {
impl BitwardenSource {
pub fn new(item_name: impl Into<String>) -> Self {
Self {
item_name: item_name.into(),
}
}
}
impl AgeKeySource for BitwardenSource {
fn name(&self) -> &str {
"bitwarden"
Self { item_name: item_name.into() }
}
fn retrieve(&self) -> Result<String> {
let bw_available = Command::new("sh")
fn retrieve_key(&self) -> Result<String, AgeError> {
let bw_ok = Command::new("sh")
.args(["-c", "command -v bw"])
.status()
.map(|s| s.success())
.unwrap_or(false);
if !bw_available {
bail!("bw CLI not found in PATH");
if !bw_ok {
return Err(AgeError::SourceError {
name: self.name().to_string(),
source: anyhow::anyhow!("bw CLI not found in PATH"),
});
}
let session = std::env::var("BW_SESSION").unwrap_or_default();
let session = if session.is_empty() {
let password = rpassword::prompt_password("Bitwarden master password: ")
.map_err(|e| anyhow::anyhow!("could not read password: {e}"))?;
.map_err(|e| AgeError::SourceError {
name: self.name().to_string(),
source: anyhow::anyhow!("could not read password: {e}"),
})?;
let output = Command::new("bw")
.args(["unlock", "--raw", &password])
.output()?;
.output()
.map_err(|e| AgeError::SourceError {
name: self.name().to_string(),
source: anyhow::anyhow!("bw unlock spawn: {e}"),
})?;
if !output.status.success() {
bail!(
"bw unlock failed: {}",
String::from_utf8_lossy(&output.stderr)
);
return Err(AgeError::SourceError {
name: self.name().to_string(),
source: anyhow::anyhow!(
"bw unlock failed: {}",
String::from_utf8_lossy(&output.stderr)
),
});
}
String::from_utf8(output.stdout)?.trim().to_string()
String::from_utf8(output.stdout)
.map_err(|e| AgeError::SourceError {
name: self.name().to_string(),
source: anyhow::anyhow!("bw unlock output UTF-8: {e}"),
})?
.trim()
.to_string()
} else {
session
};
let output = Command::new("bw")
.args(["get", "notes", &self.item_name, "--session", &session])
.output()?;
.output()
.map_err(|e| AgeError::SourceError {
name: self.name().to_string(),
source: anyhow::anyhow!("bw get spawn: {e}"),
})?;
if !output.status.success() {
bail!(
"bw get notes '{}' failed: {}",
self.item_name,
String::from_utf8_lossy(&output.stderr)
);
return Err(AgeError::SourceError {
name: self.name().to_string(),
source: anyhow::anyhow!(
"bw get notes '{}' failed: {}",
self.item_name,
String::from_utf8_lossy(&output.stderr)
),
});
}
let key = String::from_utf8(output.stdout)?.trim().to_string();
let key = String::from_utf8(output.stdout)
.map_err(|e| AgeError::SourceError {
name: self.name().to_string(),
source: anyhow::anyhow!("bw output UTF-8: {e}"),
})?
.trim()
.to_string();
if key.is_empty() {
bail!("Bitwarden item '{}' has empty notes", self.item_name);
return Err(AgeError::SourceError {
name: self.name().to_string(),
source: anyhow::anyhow!("Bitwarden item '{}' has empty notes", self.item_name),
});
}
Ok(key)
}
}
impl IdentitySource for BitwardenSource {
fn name(&self) -> &str {
"bitwarden"
}
fn load(&self) -> Result<Box<dyn Identity>, AgeError> {
let key = self.retrieve_key()?;
let identity = X25519Identity::from_bech32(key.trim()).map_err(|e| AgeError::SourceError {
name: self.name().to_string(),
source: anyhow::anyhow!("key is not a valid AGE-SECRET-KEY-1: {e}"),
})?;
Ok(Box::new(identity))
}
}

45
crates/notsecrets/src/sources/file.rs
View File

@@ -1,5 +1,8 @@
use crate::_legacy::AgeKeySource;
use anyhow::Result;
use crate::error::AgeError;
use crate::identities::encrypted::EncryptedIdentity;
use crate::identities::x25519::X25519Identity;
use crate::identities::Identity;
use crate::sources::IdentitySource;
use std::path::PathBuf;
pub struct FileSource {
@@ -12,13 +15,43 @@ impl FileSource {
}
}
impl AgeKeySource for FileSource {
impl IdentitySource for FileSource {
fn name(&self) -> &str {
"file"
}
fn retrieve(&self) -> Result<String> {
std::fs::read_to_string(&self.path)
.map_err(|e| anyhow::anyhow!("cannot read key file {}: {e}", self.path.display()))
fn load(&self) -> Result<Box<dyn Identity>, AgeError> {
let content = std::fs::read(&self.path).map_err(|e| AgeError::SourceError {
name: self.name().to_string(),
source: anyhow::anyhow!("cannot read key file {}: {e}", self.path.display()),
})?;
if content.starts_with(b"AGE-SECRET-KEY-1") {
let key_str = std::str::from_utf8(&content)
.map_err(|e| AgeError::SourceError {
name: self.name().to_string(),
source: anyhow::anyhow!("key file UTF-8: {e}"),
})?
.trim();
let identity = X25519Identity::from_bech32(key_str).map_err(|e| AgeError::SourceError {
name: self.name().to_string(),
source: anyhow::anyhow!("invalid AGE-SECRET-KEY-1: {e}"),
})?;
Ok(Box::new(identity))
} else if content.starts_with(b"age-encryption.org/v1") {
let passphrase = rpassword::prompt_password(
"Enter passphrase for encrypted identity file: ",
)
.map_err(|e| AgeError::SourceError {
name: self.name().to_string(),
source: anyhow::anyhow!("could not read passphrase: {e}"),
})?;
Ok(Box::new(EncryptedIdentity::new(content, passphrase)))
} else {
Err(AgeError::UnsupportedKeyType(format!(
"file {} does not contain a recognized age key format",
self.path.display()
)))
}
}
}

10
crates/notsecrets/src/sources/mod.rs
View File

@@ -1,3 +1,6 @@
use crate::error::AgeError;
use crate::identities::Identity;
pub mod bitwarden;
pub mod file;
pub mod prompt;
@@ -5,3 +8,10 @@ pub mod prompt;
pub use bitwarden::BitwardenSource;
pub use file::FileSource;
pub use prompt::PromptSource;
/// Infra boundary trait: an identity resolver that loads key material from an
/// external source and returns a concrete Identity.
pub trait IdentitySource {
fn name(&self) -> &str;
fn load(&self) -> Result<Box<dyn Identity>, AgeError>;
}

27
crates/notsecrets/src/sources/prompt.rs
View File

@@ -1,19 +1,28 @@
use crate::_legacy::AgeKeySource;
use anyhow::Result;
use crate::error::AgeError;
use crate::identities::scrypt::ScryptIdentity;
use crate::identities::Identity;
use crate::sources::IdentitySource;
pub struct PromptSource;
impl AgeKeySource for PromptSource {
impl IdentitySource for PromptSource {
fn name(&self) -> &str {
"prompt"
}
fn retrieve(&self) -> Result<String> {
let key = rpassword::prompt_password("Paste your age private key: ")
.map_err(|e| anyhow::anyhow!("could not read age key from prompt: {e}"))?;
if key.trim().is_empty() {
anyhow::bail!("empty age key entered");
fn load(&self) -> Result<Box<dyn Identity>, AgeError> {
let passphrase = rpassword::prompt_password("Enter age passphrase: ").map_err(|e| {
AgeError::SourceError {
name: self.name().to_string(),
source: anyhow::anyhow!("could not read passphrase: {e}"),
}
})?;
if passphrase.trim().is_empty() {
return Err(AgeError::SourceError {
name: self.name().to_string(),
source: anyhow::anyhow!("empty passphrase entered"),
});
}
Ok(key)
Ok(Box::new(ScryptIdentity::new(passphrase)))
}
}