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feat(call): introduce StreamingHandler, HandlerKind, ResponseStream + INVALID_OPERATION_TYPE (ADR-049)

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Add the foundational types for ADR-049 streaming handlers:
- StreamingHandler, ResponseStream type aliases and HandlerKind enum
  (Once | Stream) in registration.rs, with make_streaming_handler() helper
- CallError::invalid_operation_type() in wire.rs (sixth protocol code,
  retryable: false)
- HandlerRegistration.handler flipped from Handler to HandlerKind;
  HandlerRegistration::new() now takes HandlerKind
- OperationRegistryBuilder absorbs wrapping: with_local/with_leaf/
  with_leaf_provenance wrap raw Handler in HandlerKind::Once for
  Query/Mutation; new with_local_streaming/with_leaf_streaming take a
  StreamingHandler and wrap in HandlerKind::Stream for Subscription.
  Builder validates kind matches spec.op_type (mismatch = startup error)
- OperationRegistry::register() returns Result<(), String> with a clear
  mismatch message; all call sites updated to handle the Result
- invoke() matches on HandlerKind: Once -> existing path; Stream ->
  INVALID_OPERATION_TYPE error envelope (guards against silent
  truncation; invoke_streaming() added in a downstream task)
- OverlayOperationEnv::invoke_with_policy matches on HandlerKind:
  Once -> dispatch; Stream -> INVALID_OPERATION_TYPE (composition is
  request/response-only)
- Migrated every HandlerRegistration::new() construction site (~95)
  to wrap raw Handler in HandlerKind::Once(handler); the builder sites
  are handled by the builder-absorbs-wrapping change
- Updated two websocket subscription tests that relied on Subscription
  ops dispatching via invoke() to expect INVALID_OPERATION_TYPE
- Added unit tests for invoke/register validation and
  make_streaming_handler
This commit is contained in:
glm-5.2
2026-07-02 09:28:05 +00:00
parent 07f7607fbb
commit 9c81129f24
20 changed files with 1322 additions and 811 deletions
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198
crates/alknet-http/src/gateway/dispatch.rs
View File

@@ -117,7 +117,7 @@ mod tests {
services_list_handler, services_list_spec, services_schema_handler, services_schema_spec,
};
use alknet_call::registry::registration::{
make_handler, HandlerRegistration, OperationProvenance,
make_handler, HandlerKind, HandlerRegistration, OperationProvenance,
};
use alknet_call::registry::spec::{AccessControl, OperationSpec, OperationType, Visibility};
use alknet_core::auth::AuthToken;
@@ -187,45 +187,51 @@ mod tests {
fn registry_with(name: &str, visibility: Visibility, acl: AccessControl) -> OperationRegistry {
let mut registry = OperationRegistry::new();
registry.register(HandlerRegistration::new(
OperationSpec::new(
name,
OperationType::Query,
visibility,
serde_json::json!({}),
serde_json::json!({}),
vec![],
acl,
),
make_handler(|input, context| async move {
ResponseEnvelope::ok(context.request_id, input)
}),
OperationProvenance::Local,
None,
None,
Capabilities::new(),
));
registry
.register(HandlerRegistration::new(
OperationSpec::new(
name,
OperationType::Query,
visibility,
serde_json::json!({}),
serde_json::json!({}),
vec![],
acl,
),
HandlerKind::Once(make_handler(|input, context| async move {
ResponseEnvelope::ok(context.request_id, input)
})),
OperationProvenance::Local,
None,
None,
Capabilities::new(),
))
.unwrap();
registry
}
fn registry_with_discovery(inner: Arc<OperationRegistry>) -> OperationRegistry {
let mut registry = OperationRegistry::new();
registry.register(HandlerRegistration::new(
services_list_spec(),
services_list_handler(Arc::clone(&inner)),
OperationProvenance::Local,
None,
ScopedPeerEnv::empty().into(),
Capabilities::new(),
));
registry.register(HandlerRegistration::new(
services_schema_spec(),
services_schema_handler(Arc::clone(&inner)),
OperationProvenance::Local,
None,
ScopedPeerEnv::empty().into(),
Capabilities::new(),
));
registry
.register(HandlerRegistration::new(
services_list_spec(),
HandlerKind::Once(services_list_handler(Arc::clone(&inner))),
OperationProvenance::Local,
None,
ScopedPeerEnv::empty().into(),
Capabilities::new(),
))
.unwrap();
registry
.register(HandlerRegistration::new(
services_schema_spec(),
HandlerKind::Once(services_schema_handler(Arc::clone(&inner))),
OperationProvenance::Local,
None,
ScopedPeerEnv::empty().into(),
Capabilities::new(),
))
.unwrap();
registry
}
@@ -270,32 +276,36 @@ mod tests {
#[tokio::test]
async fn invoke_for_services_list_returns_access_control_filtered_list() {
let mut inner = OperationRegistry::new();
inner.register(HandlerRegistration::new(
external_spec("public/echo", AccessControl::default()),
make_handler(|input, context| async move {
ResponseEnvelope::ok(context.request_id, input)
}),
OperationProvenance::Local,
None,
None,
Capabilities::new(),
));
inner.register(HandlerRegistration::new(
external_spec(
"admin/secret",
AccessControl {
required_scopes: vec!["admin".to_string()],
..Default::default()
},
),
make_handler(|input, context| async move {
ResponseEnvelope::ok(context.request_id, input)
}),
OperationProvenance::Local,
None,
None,
Capabilities::new(),
));
inner
.register(HandlerRegistration::new(
external_spec("public/echo", AccessControl::default()),
HandlerKind::Once(make_handler(|input, context| async move {
ResponseEnvelope::ok(context.request_id, input)
})),
OperationProvenance::Local,
None,
None,
Capabilities::new(),
))
.unwrap();
inner
.register(HandlerRegistration::new(
external_spec(
"admin/secret",
AccessControl {
required_scopes: vec!["admin".to_string()],
..Default::default()
},
),
HandlerKind::Once(make_handler(|input, context| async move {
ResponseEnvelope::ok(context.request_id, input)
})),
OperationProvenance::Local,
None,
None,
Capabilities::new(),
))
.unwrap();
let inner = Arc::new(inner);
let discovery = Arc::new(registry_with_discovery(Arc::clone(&inner)));
let provider: Arc<dyn IdentityProvider> = Arc::new(StaticIdentityProvider::new());
@@ -327,16 +337,18 @@ mod tests {
#[tokio::test]
async fn invoke_for_services_schema_returns_spec_for_known_op() {
let mut inner = OperationRegistry::new();
inner.register(HandlerRegistration::new(
external_spec("fs/readFile", AccessControl::default()),
make_handler(|input, context| async move {
ResponseEnvelope::ok(context.request_id, input)
}),
OperationProvenance::Local,
None,
None,
Capabilities::new(),
));
inner
.register(HandlerRegistration::new(
external_spec("fs/readFile", AccessControl::default()),
HandlerKind::Once(make_handler(|input, context| async move {
ResponseEnvelope::ok(context.request_id, input)
})),
OperationProvenance::Local,
None,
None,
Capabilities::new(),
))
.unwrap();
let inner = Arc::new(inner);
let discovery = Arc::new(registry_with_discovery(Arc::clone(&inner)));
let provider: Arc<dyn IdentityProvider> = Arc::new(StaticIdentityProvider::new());
@@ -373,16 +385,18 @@ mod tests {
#[tokio::test]
async fn invoke_for_internal_op_returns_not_found_not_leaked() {
let mut registry = OperationRegistry::new();
registry.register(HandlerRegistration::new(
internal_spec("secret/op", AccessControl::default()),
make_handler(|input, context| async move {
ResponseEnvelope::ok(context.request_id, input)
}),
OperationProvenance::Local,
None,
None,
Capabilities::new(),
));
registry
.register(HandlerRegistration::new(
internal_spec("secret/op", AccessControl::default()),
HandlerKind::Once(make_handler(|input, context| async move {
ResponseEnvelope::ok(context.request_id, input)
})),
OperationProvenance::Local,
None,
None,
Capabilities::new(),
))
.unwrap();
let registry = Arc::new(registry);
let provider: Arc<dyn IdentityProvider> = Arc::new(StaticIdentityProvider::new());
let dp = dispatch(registry, provider);
@@ -499,16 +513,18 @@ mod tests {
let caps = Capabilities::new().with_api_key("google", "k".to_string());
let mut registry = OperationRegistry::new();
registry.register(HandlerRegistration::new(
external_spec("agent/run", AccessControl::default()),
make_handler(|input, context| async move {
ResponseEnvelope::ok(context.request_id, input)
}),
OperationProvenance::Local,
Some(authority),
Some(scoped.clone()),
caps,
));
registry
.register(HandlerRegistration::new(
external_spec("agent/run", AccessControl::default()),
HandlerKind::Once(make_handler(|input, context| async move {
ResponseEnvelope::ok(context.request_id, input)
})),
OperationProvenance::Local,
Some(authority),
Some(scoped.clone()),
caps,
))
.unwrap();
let registry = Arc::new(registry);
let provider: Arc<dyn IdentityProvider> = Arc::new(StaticIdentityProvider::new());
let dp = dispatch(registry, provider);