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State properties #185

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merged 4 commits into from
Mar 17, 2021
Merged

State properties #185

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b0e365b
Add external join to interop client
bifurcation Feb 18, 2021
dee3785
Add methods to expose state properties
bifurcation Feb 25, 2021
73bba57
clang-format
bifurcation Feb 25, 2021
707d672
Merge branch 'main' into state-properties
bifurcation Mar 16, 2021
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84 changes: 84 additions & 0 deletions cmd/interop/src/mls_client_impl.cpp
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -123,6 +123,16 @@ MLSClientImpl::ExternalJoin(ServerContext* /* context */,
}

// Access information from a group state
Status
MLSClientImpl::PublicGroupState(ServerContext* /* context */,
const PublicGroupStateRequest* request,
PublicGroupStateResponse* response)
{
return state_wrap(request, [=](auto& state) {
return public_group_state(state, request, response);
});
}

Status
MLSClientImpl::StateAuth(ServerContext* /* context */,
const StateAuthRequest* request,
Expand All @@ -142,6 +152,33 @@ MLSClientImpl::PublicGroupState(ServerContext* /* context */,
});
}

Status
MLSClientImpl::Export(ServerContext* /* context */,
const ExportRequest* request,
ExportResponse* response)
{
return state_wrap(
request, [=](auto& state) { return do_export(state, request, response); });
}

Status
MLSClientImpl::Protect(ServerContext* /* context */,
const ProtectRequest* request,
ProtectResponse* response)
{
return state_wrap(
request, [=](auto& state) { return protect(state, request, response); });
}

Status
MLSClientImpl::Unprotect(ServerContext* /* context */,
const UnprotectRequest* request,
UnprotectResponse* response)
{
return state_wrap(
request, [=](auto& state) { return unprotect(state, request, response); });
}

// Operations using a group state
Status
MLSClientImpl::AddProposal(ServerContext* /* context */,
Expand Down Expand Up @@ -446,6 +483,16 @@ MLSClientImpl::external_join(const ExternalJoinRequest* request,
}

// Access information from a group state
Status
MLSClientImpl::public_group_state(CachedState& entry,
const PublicGroupStateRequest* /* request */,
PublicGroupStateResponse* response)
{
auto pgs = tls::marshal(entry.state.public_group_state());
response->set_public_group_state(bytes_to_string(pgs));
return Status::OK;
}

Status
MLSClientImpl::state_auth(CachedState& entry,
const StateAuthRequest* /* request */,
Expand All @@ -456,6 +503,43 @@ MLSClientImpl::state_auth(CachedState& entry,
return Status::OK;
}

Status
MLSClientImpl::do_export(CachedState& entry,
const ExportRequest* request,
ExportResponse* response)
{
auto label = request->label();
auto context = string_to_bytes(request->context());
auto size = request->key_length();
auto secret = entry.state.do_export(label, context, size);
response->set_exported_secret(bytes_to_string(secret));
return Status::OK;
}

Status
MLSClientImpl::protect(CachedState& entry,
const ProtectRequest* request,
ProtectResponse* response)
{
auto pt = string_to_bytes(request->application_data());
auto ct = entry.state.protect(pt);
auto ct_data = tls::marshal(ct);
response->set_ciphertext(bytes_to_string(ct_data));
return Status::OK;
}

Status
MLSClientImpl::unprotect(CachedState& entry,
const UnprotectRequest* request,
UnprotectResponse* response)
{
auto ct_data = string_to_bytes(request->ciphertext());
auto ct = tls::get<mls::MLSCiphertext>(ct_data);
auto pt = entry.state.unprotect(ct);
response->set_application_data(bytes_to_string(pt));
return Status::OK;
}

Status
MLSClientImpl::public_group_state(CachedState& entry,
const PublicGroupStateRequest* /* request */,
Expand Down
24 changes: 24 additions & 0 deletions cmd/interop/src/mls_client_impl.h
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Original file line number Diff line number Diff line change
Expand Up @@ -43,9 +43,21 @@ class MLSClientImpl final : public MLSClient::Service
ExternalJoinResponse* response) override;

// Access information from a group state
Status PublicGroupState(ServerContext* context,
const PublicGroupStateRequest* request,
PublicGroupStateResponse* response) override;
Status StateAuth(ServerContext* context,
const StateAuthRequest* request,
StateAuthResponse* response) override;
Status Export(ServerContext* context,
const ExportRequest* request,
ExportResponse* response) override;
Status Protect(ServerContext* context,
const ProtectRequest* request,
ProtectResponse* response) override;
Status Unprotect(ServerContext* context,
const UnprotectRequest* request,
UnprotectResponse* response) override;
Status PublicGroupState(ServerContext* context,
const PublicGroupStateRequest* request,
PublicGroupStateResponse* response) override;
Expand Down Expand Up @@ -121,9 +133,21 @@ class MLSClientImpl final : public MLSClient::Service
ExternalJoinResponse* response);

// Access information from a group state
Status public_group_state(CachedState& entry,
const PublicGroupStateRequest* request,
PublicGroupStateResponse* response);
Status state_auth(CachedState& entry,
const StateAuthRequest* request,
StateAuthResponse* response);
Status do_export(CachedState& entry,
const ExportRequest* request,
ExportResponse* response);
Status protect(CachedState& entry,
const ProtectRequest* request,
ProtectResponse* response);
Status unprotect(CachedState& entry,
const UnprotectRequest* request,
UnprotectResponse* response);
Status public_group_state(CachedState& entry,
const PublicGroupStateRequest* request,
PublicGroupStateResponse* response);
Expand Down