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//! ACL methods on [`VtaClient`].
use super::types::AclEntryEnvelope;
use super::{
AclEntryResponse, AclListResponse, ChangeAclRoleRequest, CreateAclRequest, SwapAclRequest,
UpdateAclRequest, VtaClient, encode_path_segment,
};
use crate::acl::ContextDirection;
use crate::error::VtaError;
#[cfg(feature = "client")]
use crate::protocols::acl_management;
#[cfg(feature = "client")]
impl VtaClient {
/// List ACL entries, optionally filtered to the entries that may act **in**
/// `context`.
///
/// For the other direction — what is granted *beneath* a context, which is
/// what a revocation sweep or a delegation audit needs — call
/// [`list_acl_in_direction`](Self::list_acl_in_direction). This method is
/// exactly `ContextDirection::ActingIn` and stays that way.
pub async fn list_acl(&self, context: Option<&str>) -> Result<AclListResponse, VtaError> {
self.list_acl_in_direction(context, ContextDirection::ActingIn)
.await
}
/// List ACL entries, filtering `context` in an explicit
/// [`ContextDirection`].
///
/// A context id names a subtree, so `?context=X` is two questions:
/// [`ActingIn`](ContextDirection::ActingIn) (who holds authority over X)
/// and [`Subtree`](ContextDirection::Subtree) (what is granted inside X).
/// Sweeping a subtree with the first returns precisely the entries the
/// sweep is *not* revoking, so a caller cutting a branch must ask for the
/// second (#822). [`Any`](ContextDirection::Any) is the auditor's union.
///
/// The direction is inert without a context and the VTA refuses that
/// combination rather than silently listing everything.
pub async fn list_acl_in_direction(
&self,
context: Option<&str>,
direction: ContextDirection,
) -> Result<AclListResponse, VtaError> {
// Omitted when it is the default, so an old VTA — which would reject
// the unknown field — keeps serving the calls that mean what it
// already does.
let direction_field = (direction != ContextDirection::default())
.then(|| serde_json::Value::String(direction.to_string()));
self.rpc(
acl_management::LIST_ACL,
serde_json::json!({ "context": context, "direction": direction_field }),
acl_management::LIST_ACL_RESULT,
30,
|c, url| {
// Both parameters are appended independently — a direction
// without a context is a caller error, and the VTA says so;
// dropping it here would make REST answer a question DIDComm
// refuses.
let mut u = format!("{url}/acl");
let mut sep = '?';
if let Some(ctx) = context {
u.push_str(&format!("{sep}context={ctx}"));
sep = '&';
}
if direction != ContextDirection::default() {
u.push_str(&format!("{sep}direction={direction}"));
}
c.get(u)
},
)
.await
}
pub async fn get_acl(&self, did: &str) -> Result<AclEntryResponse, VtaError> {
// Canonical `acl/show/0.1` wraps the entry (alongside `redactedFields`);
// unwrap so callers keep working with the entry itself.
let wrapped: AclEntryEnvelope = self
.rpc(
acl_management::GET_ACL,
serde_json::json!({ "subject": did }),
acl_management::GET_ACL_RESULT,
30,
|c, url| c.get(format!("{url}/acl/{}", encode_path_segment(did))),
)
.await?;
Ok(wrapped.entry)
}
pub async fn create_acl(&self, req: CreateAclRequest) -> Result<AclEntryResponse, VtaError> {
// Canonical `acl/grant/0.1` returns the realized entry under `entry`.
// `CreateAclRequest` serializes to the canonical `{ entry, … }`
// request, so the same body serves the REST route and the trust-task
// dispatcher (which schema-validates it against the published spec).
let wrapped: AclEntryEnvelope = self
.rpc_tt(
crate::trust_tasks::TASK_ACL_GRANT_0_1,
serde_json::to_value(&req)?,
30,
|c, url| c.post(format!("{url}/acl")).json(&req),
)
.await?;
Ok(wrapped.entry)
}
pub async fn update_acl(
&self,
did: &str,
req: UpdateAclRequest,
) -> Result<AclEntryResponse, VtaError> {
// Canonical `acl/update/0.1` returns the realized entry under `entry`,
// like grant and show. The DIDComm body is the canonical wire shape
// (`subject`/`scopes` — #856), same as the Trust Task transport.
let wrapped: AclEntryEnvelope = self
.rpc(
acl_management::UPDATE_ACL,
serde_json::json!({
"subject": did,
"label": &req.label,
"scopes": &req.allowed_contexts,
}),
acl_management::UPDATE_ACL_RESULT,
30,
|c, url| {
c.patch(format!("{url}/acl/{}", encode_path_segment(did)))
.json(&req)
},
)
.await?;
Ok(wrapped.entry)
}
/// Transition a subject's role, compare-and-swapped against the role
/// they currently hold.
///
/// Separate from [`Self::update_acl`] because role is the one ACL
/// attribute where a lost update is a privilege change. If another
/// admin has moved the subject since you read them, this fails
/// rather than overwriting their change — re-read and retry.
pub async fn change_acl_role(
&self,
did: &str,
req: ChangeAclRoleRequest,
) -> Result<AclEntryResponse, VtaError> {
let wrapped: AclEntryEnvelope = self
.rpc(
acl_management::CHANGE_ROLE,
serde_json::json!({
"subject": did,
"fromRole": &req.from_role,
"toRole": &req.to_role,
"reason": &req.reason,
}),
acl_management::CHANGE_ROLE_RESULT,
30,
|c, url| {
c.post(format!(
"{url}/acl/{}/change-role",
encode_path_segment(did)
))
.json(&req)
},
)
.await?;
Ok(wrapped.entry)
}
pub async fn delete_acl(&self, did: &str) -> Result<(), VtaError> {
self.rpc_tt_void(
crate::trust_tasks::TASK_ACL_REVOKE_0_1,
serde_json::json!({ "subject": did }),
30,
|c, url| c.delete(format!("{url}/acl/{}", encode_path_segment(did))),
)
.await
}
/// Atomic self-service key rotation: move the caller's own ACL entry onto
/// the DID proven by `req.presentation` (a VP-JWT). Returns the new entry.
pub async fn swap_acl(&self, req: SwapAclRequest) -> Result<AclEntryResponse, VtaError> {
self.rpc(
acl_management::SWAP_ACL,
serde_json::to_value(&req)?,
acl_management::SWAP_ACL_RESULT,
30,
|c, url| c.post(format!("{url}/acl/swap")).json(&req),
)
.await
}
}