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scenes-server.cpp
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/*
*
* Copyright (c) 2021-2023 Project CHIP Authors
* All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "scenes-server.h"
#include <app-common/zap-generated/attributes/Accessors.h>
#include <app-common/zap-generated/cluster-objects.h>
#include <app/AttributeAccessInterfaceRegistry.h>
#include <app/CommandHandlerInterface.h>
#include <app/CommandHandlerInterfaceRegistry.h>
#include <app/InteractionModelEngine.h>
#include <app/clusters/scenes-server/SceneTableImpl.h>
#include <app/reporting/reporting.h>
#include <app/server/Server.h>
#include <app/util/attribute-storage.h>
#include <app/util/config.h>
#include <credentials/GroupDataProvider.h>
#include <lib/support/CommonIterator.h>
#include <lib/support/Span.h>
#include <lib/support/logging/CHIPLogging.h>
#include <platform/PlatformManager.h>
#include <tracing/macros.h>
using SceneTableEntry = chip::scenes::DefaultSceneTableImpl::SceneTableEntry;
using SceneStorageId = chip::scenes::DefaultSceneTableImpl::SceneStorageId;
using SceneData = chip::scenes::DefaultSceneTableImpl::SceneData;
using HandlerContext = chip::app::CommandHandlerInterface::HandlerContext;
using ExtensionFieldSet = chip::scenes::ExtensionFieldSet;
using GroupDataProvider = chip::Credentials::GroupDataProvider;
using SceneTable = chip::scenes::SceneTable<chip::scenes::ExtensionFieldSetsImpl>;
using AuthMode = chip::Access::AuthMode;
using ScenesServer = chip::app::Clusters::ScenesManagement::ScenesServer;
using chip::Protocols::InteractionModel::Status;
namespace chip {
namespace app {
namespace Clusters {
namespace ScenesManagement {
namespace {
Protocols::InteractionModel::Status ResponseStatus(CHIP_ERROR err)
{
// TODO : Properly fix mapping between error types (issue https://github.com/project-chip/connectedhomeip/issues/26885)
if (CHIP_ERROR_NOT_FOUND == err)
{
return Protocols::InteractionModel::Status::NotFound;
}
if (CHIP_ERROR_NO_MEMORY == err)
{
return Protocols::InteractionModel::Status::ResourceExhausted;
}
if (CHIP_IM_GLOBAL_STATUS(UnsupportedAttribute) == err)
{
// TODO: Confirm if we need to add UnsupportedAttribute status as a return for Scene Commands
return Protocols::InteractionModel::Status::InvalidCommand;
}
return StatusIB(err).mStatus;
}
/// @brief Generate and add a response to a command handler context if err parameter is not CHIP_NO_ERROR
/// @tparam ResponseType Type of response, depends on the command
/// @param ctx Command Handler context where to add reponse
/// @param resp Response to add in ctx
/// @param status Status to verify
/// @return CHIP_ERROR
template <typename ResponseType>
CHIP_ERROR AddResponseOnError(CommandHandlerInterface::HandlerContext & ctx, ResponseType & resp, CHIP_ERROR err)
{
if (CHIP_NO_ERROR != err)
{
resp.status = to_underlying(ResponseStatus(err));
ctx.mCommandHandler.AddResponse(ctx.mRequestPath, resp);
}
return err;
}
/// @brief Generate and add a response to a command handler context depending on an InteractionModel::Status
/// @tparam ResponseType Type of response, depends on the command
/// @param ctx Command Handler context where to add reponse
/// @param resp Response to add in ctx
/// @param status Status to verify
/// @return InteractionModel::Status -> CHIP_ERROR
template <typename ResponseType>
CHIP_ERROR AddResponseOnError(CommandHandlerInterface::HandlerContext & ctx, ResponseType & resp, Status status)
{
// TODO: this seems odd: we convert `status` to a CHIP_ERROR and then back to status. This seems
// potentially lossy and not ideal.
return AddResponseOnError(ctx, resp, StatusIB(status).ToChipError());
}
Status SetLastConfiguredBy(HandlerContext & ctx)
{
const Access::SubjectDescriptor descriptor = ctx.mCommandHandler.GetSubjectDescriptor();
if (AuthMode::kCase == descriptor.authMode)
{
return Attributes::LastConfiguredBy::Set(ctx.mRequestPath.mEndpointId, descriptor.subject);
}
return Attributes::LastConfiguredBy::SetNull(ctx.mRequestPath.mEndpointId);
}
template <typename ResponseType>
CHIP_ERROR UpdateLastConfiguredBy(HandlerContext & ctx, ResponseType resp)
{
Status status = SetLastConfiguredBy(ctx);
// LastConfiguredBy is optional, so we don't want to fail the command if it fails to update
VerifyOrReturnValue(!(Status::Success == status || Status::UnsupportedAttribute == status), CHIP_NO_ERROR);
return AddResponseOnError(ctx, resp, status);
}
/// @brief Helper function to update the FabricSceneInfo attribute for a given Endpoint and fabric
/// @param endpoint Endpoint to update
/// @param fabric Fabric to update
/// @param group Group to update, if not provided, will be assigned 0 for a new SceneInfoStruct or keep previous value for an
/// existing one
/// @param scene Scene to update, if not provided, will be assigned 0 for a new SceneInfoStruct or keep previous value for an
/// existing one
/// @param sceneValid sceneValid status, if not provided, will be assigned false for a new SceneInfoStruct or keep previous
/// value for an existing one
/// @return
CHIP_ERROR UpdateFabricSceneInfo(EndpointId endpoint, FabricIndex fabric, Optional<GroupId> group, Optional<SceneId> scene,
Optional<bool> sceneValid)
{
VerifyOrReturnError(kInvalidEndpointId != endpoint, CHIP_ERROR_INVALID_ARGUMENT);
VerifyOrReturnError(kUndefinedFabricIndex != fabric, CHIP_ERROR_INVALID_ARGUMENT);
SceneTable * sceneTable = scenes::GetSceneTableImpl(endpoint);
Structs::SceneInfoStruct::Type * sceneInfo = ScenesServer::Instance().GetSceneInfoStruct(endpoint, fabric);
if (nullptr != sceneInfo)
{
if (group.HasValue())
{
sceneInfo->currentGroup = group.Value();
}
if (scene.HasValue())
{
sceneInfo->currentScene = scene.Value();
}
if (sceneValid.HasValue())
{
sceneInfo->sceneValid = sceneValid.Value();
}
ReturnErrorOnFailure(sceneTable->GetFabricSceneCount(fabric, sceneInfo->sceneCount));
ReturnErrorOnFailure(sceneTable->GetRemainingCapacity(fabric, sceneInfo->remainingCapacity));
}
else
{
// If we couldn't find a SceneInfoStruct for the fabric, create one
Structs::SceneInfoStruct::Type newSceneInfo;
newSceneInfo.fabricIndex = fabric;
newSceneInfo.currentGroup = group.ValueOr(0);
newSceneInfo.currentScene = scene.ValueOr(0);
newSceneInfo.sceneValid = sceneValid.ValueOr(false);
ReturnErrorOnFailure(sceneTable->GetFabricSceneCount(fabric, newSceneInfo.sceneCount));
ReturnErrorOnFailure(sceneTable->GetRemainingCapacity(fabric, newSceneInfo.remainingCapacity));
ReturnErrorOnFailure(ScenesServer::Instance().SetSceneInfoStruct(endpoint, fabric, newSceneInfo));
}
MatterReportingAttributeChangeCallback(endpoint, Id, Attributes::FabricSceneInfo::Id);
return CHIP_NO_ERROR;
}
} // namespace
/// @brief Gets the SceneInfoStruct array associated to an endpoint
/// @param endpoint target endpoint
/// @return Optional with no value not found, Span of SceneInfoStruct
Span<Structs::SceneInfoStruct::Type> ScenesServer::FabricSceneInfo::GetFabricSceneInfo(EndpointId endpoint)
{
size_t endpointIndex = 0;
Span<Structs::SceneInfoStruct::Type> fabricSceneInfoSpan;
CHIP_ERROR status = FindFabricSceneInfoIndex(endpoint, endpointIndex);
if (CHIP_NO_ERROR == status)
{
fabricSceneInfoSpan =
Span<Structs::SceneInfoStruct::Type>(&mSceneInfoStructs[endpointIndex][0], mSceneInfoStructsCount[endpointIndex]);
}
return fabricSceneInfoSpan;
}
/// @brief Gets the SceneInfoStruct for a specific fabric for a specific endpoint
/// @param endpoint target endpoint
/// @param fabric target fabric
/// @param index
/// @return Nullptr if not found, pointer to the SceneInfoStruct otherwise
Structs::SceneInfoStruct::Type * ScenesServer::FabricSceneInfo::GetSceneInfoStruct(EndpointId endpoint, FabricIndex fabric)
{
size_t endpointIndex = 0;
VerifyOrReturnValue(CHIP_NO_ERROR == FindFabricSceneInfoIndex(endpoint, endpointIndex), nullptr);
uint8_t sceneInfoStructIndex = 0;
VerifyOrReturnValue(CHIP_NO_ERROR == FindSceneInfoStructIndex(fabric, endpointIndex, sceneInfoStructIndex), nullptr);
return &mSceneInfoStructs[endpointIndex][sceneInfoStructIndex];
}
/// @brief Sets the SceneInfoStruct for a specific fabric for a specific endpoint
/// @param endpoint target endpoint
/// @param fabric target fabric
/// @param [in] sceneInfoStruct SceneInfoStruct to set
/// @return CHIP_NO_ERROR, CHIP_ERROR_NOT_FOUND if the endpoint is not found, CHIP_ERROR_NO_MEMORY if the number of fabrics is
/// exceeded, CHIP_ERROR_INVALID_ARGUMENT if invalid fabric or endpoint
CHIP_ERROR ScenesServer::FabricSceneInfo::SetSceneInfoStruct(EndpointId endpoint, FabricIndex fabric,
Structs::SceneInfoStruct::Type & sceneInfoStruct)
{
VerifyOrReturnError(kInvalidEndpointId != endpoint, CHIP_ERROR_INVALID_ARGUMENT);
VerifyOrReturnError(kUndefinedFabricIndex != fabric, CHIP_ERROR_INVALID_ARGUMENT);
size_t endpointIndex = 0;
ReturnErrorOnFailure(FindFabricSceneInfoIndex(endpoint, endpointIndex));
uint8_t sceneInfoStructIndex = 0;
if (CHIP_ERROR_NOT_FOUND == FindSceneInfoStructIndex(fabric, endpointIndex, sceneInfoStructIndex))
{
VerifyOrReturnError(mSceneInfoStructsCount[endpointIndex] < ArraySize(mSceneInfoStructs[endpointIndex]),
CHIP_ERROR_NO_MEMORY);
sceneInfoStructIndex = mSceneInfoStructsCount[endpointIndex];
// Increment number of populated ScenesInfoStructs
mSceneInfoStructsCount[endpointIndex]++;
}
mSceneInfoStructs[endpointIndex][sceneInfoStructIndex] = sceneInfoStruct;
return CHIP_NO_ERROR;
}
/// @brief Clears the SceneInfoStruct associated to a fabric and compresses the array to leave uninitialised structs at the end
/// @param[in] endpoint target endpoint
/// @param[in] fabric target fabric
void ScenesServer::FabricSceneInfo::ClearSceneInfoStruct(EndpointId endpoint, FabricIndex fabric)
{
size_t endpointIndex = 0;
ReturnOnFailure(FindFabricSceneInfoIndex(endpoint, endpointIndex));
uint8_t sceneInfoStructIndex = 0;
ReturnOnFailure(FindSceneInfoStructIndex(fabric, endpointIndex, sceneInfoStructIndex));
uint8_t nextIndex = static_cast<uint8_t>(sceneInfoStructIndex + 1);
uint8_t moveNum = static_cast<uint8_t>(ArraySize(mSceneInfoStructs[endpointIndex]) - nextIndex);
// Compress the endpoint's SceneInfoStruct array
if (moveNum)
{
for (size_t i = 0; i < moveNum; ++i)
{
mSceneInfoStructs[endpointIndex][sceneInfoStructIndex + i] = mSceneInfoStructs[endpointIndex][nextIndex + i];
}
}
// Decrement the SceneInfoStruct count
mSceneInfoStructsCount[endpointIndex]--;
// Clear the last populated SceneInfoStruct
mSceneInfoStructs[endpointIndex][mSceneInfoStructsCount[endpointIndex]].fabricIndex = kUndefinedFabricIndex;
mSceneInfoStructs[endpointIndex][mSceneInfoStructsCount[endpointIndex]].sceneCount = 0;
mSceneInfoStructs[endpointIndex][mSceneInfoStructsCount[endpointIndex]].currentScene = 0;
mSceneInfoStructs[endpointIndex][mSceneInfoStructsCount[endpointIndex]].currentGroup = 0;
mSceneInfoStructs[endpointIndex][mSceneInfoStructsCount[endpointIndex]].remainingCapacity = 0;
}
/// @brief Returns the index of the FabricSceneInfo associated to an endpoint
/// @param[in] endpoint target endpoint
/// @param[out] endpointIndex index of the corresponding FabricSceneInfo for an endpoint, corresponds to a row in the
/// mSceneInfoStructs array,
/// @return CHIP_NO_ERROR or CHIP_ERROR_NOT_FOUND, CHIP_ERROR_INVALID_ARGUMENT if invalid endpoint
CHIP_ERROR ScenesServer::FabricSceneInfo::FindFabricSceneInfoIndex(EndpointId endpoint, size_t & endpointIndex)
{
VerifyOrReturnError(kInvalidEndpointId != endpoint, CHIP_ERROR_INVALID_ARGUMENT);
uint16_t index =
emberAfGetClusterServerEndpointIndex(endpoint, ScenesManagement::Id, MATTER_DM_SCENES_CLUSTER_SERVER_ENDPOINT_COUNT);
if (index < ArraySize(mSceneInfoStructs))
{
endpointIndex = index;
return CHIP_NO_ERROR;
}
return CHIP_ERROR_NOT_FOUND;
}
/// @brief Returns the SceneInfoStruct associated to a fabric
/// @param[in] fabric target fabric index
/// @param[in] endpointIndex index of the corresponding FabricSceneInfo for an endpoint, corresponds to a row in the
/// mSceneInfoStructs array
/// @param[out] index index of the corresponding SceneInfoStruct if found, otherwise the index value will be invalid and
/// should not be used. This is safe to store in a uint8_t because the index is guaranteed to be smaller than
/// CHIP_CONFIG_MAX_FABRICS.
/// @return CHIP_NO_ERROR or CHIP_ERROR_NOT_FOUND, CHIP_ERROR_INVALID_ARGUMENT if invalid fabric or endpointIndex are provided
CHIP_ERROR ScenesServer::FabricSceneInfo::FindSceneInfoStructIndex(FabricIndex fabric, size_t endpointIndex, uint8_t & index)
{
VerifyOrReturnError(endpointIndex < ArraySize(mSceneInfoStructs), CHIP_ERROR_INVALID_ARGUMENT);
VerifyOrReturnError(kUndefinedFabricIndex != fabric, CHIP_ERROR_INVALID_ARGUMENT);
index = 0;
for (auto & info : mSceneInfoStructs[endpointIndex])
{
if (info.fabricIndex == fabric)
{
return CHIP_NO_ERROR;
}
index++;
}
return CHIP_ERROR_NOT_FOUND;
}
ScenesServer ScenesServer::mInstance;
ScenesServer & ScenesServer::Instance()
{
return mInstance;
}
void ReportAttributeOnAllEndpoints(AttributeId attribute) {}
class ScenesClusterFabricDelegate : public chip::FabricTable::Delegate
{
void OnFabricRemoved(const FabricTable & fabricTable, FabricIndex fabricIndex) override
{
SceneTable * sceneTable = scenes::GetSceneTableImpl();
VerifyOrReturn(nullptr != sceneTable);
// The implementation of SceneTable::RemoveFabric() must not call back into the FabricTable
sceneTable->RemoveFabric(fabricIndex);
}
};
static ScenesClusterFabricDelegate gFabricDelegate;
CHIP_ERROR ScenesServer::Init()
{
// Prevents re-initializing
VerifyOrReturnError(!mIsInitialized, CHIP_ERROR_INCORRECT_STATE);
ReturnErrorOnFailure(chip::app::CommandHandlerInterfaceRegistry::Instance().RegisterCommandHandler(this));
VerifyOrReturnError(AttributeAccessInterfaceRegistry::Instance().Register(this), CHIP_ERROR_INCORRECT_STATE);
mGroupProvider = Credentials::GetGroupDataProvider();
SceneTable * sceneTable = scenes::GetSceneTableImpl();
ReturnErrorOnFailure(sceneTable->Init(&chip::Server::GetInstance().GetPersistentStorage()));
ReturnErrorOnFailure(chip::Server::GetInstance().GetFabricTable().AddFabricDelegate(&gFabricDelegate));
mIsInitialized = true;
return CHIP_NO_ERROR;
}
void ScenesServer::Shutdown()
{
chip::app::CommandHandlerInterfaceRegistry::Instance().UnregisterCommandHandler(this);
mGroupProvider = nullptr;
mIsInitialized = false;
}
template <typename CommandData, typename ResponseType>
void AddSceneParse(CommandHandlerInterface::HandlerContext & ctx, const CommandData & req, GroupDataProvider * groupProvider)
{
ResponseType response;
uint16_t endpointTableSize = 0;
ReturnOnFailure(
AddResponseOnError(ctx, response, Attributes::SceneTableSize::Get(ctx.mRequestPath.mEndpointId, &endpointTableSize)));
// Get Scene Table Instance
SceneTable * sceneTable = scenes::GetSceneTableImpl(ctx.mRequestPath.mEndpointId, endpointTableSize);
// Response data
response.groupID = req.groupID;
response.sceneID = req.sceneID;
// Verify the attributes are respecting constraints
if (req.transitionTime > scenes::kScenesMaxTransitionTime || req.sceneName.size() > scenes::kSceneNameMaxLength ||
req.sceneID == scenes::kUndefinedSceneId)
{
response.status = to_underlying(Protocols::InteractionModel::Status::ConstraintError);
ctx.mCommandHandler.AddResponse(ctx.mRequestPath, response);
return;
}
// Verify Endpoint in group
VerifyOrReturn(nullptr != groupProvider);
if (0 != req.groupID &&
!groupProvider->HasEndpoint(ctx.mCommandHandler.GetAccessingFabricIndex(), req.groupID, ctx.mRequestPath.mEndpointId))
{
response.status = to_underlying(Protocols::InteractionModel::Status::InvalidCommand);
ctx.mCommandHandler.AddResponse(ctx.mRequestPath, response);
return;
}
uint32_t featureMap = 0;
ReturnOnFailure(AddResponseOnError(ctx, response, Attributes::FeatureMap::Get(ctx.mRequestPath.mEndpointId, &featureMap)));
SceneData storageData(CharSpan(), req.transitionTime);
if (featureMap & to_underlying(Feature::kSceneNames))
{
storageData.SetName(req.sceneName);
}
auto fieldSetIter = req.extensionFieldSets.begin();
uint8_t EFSCount = 0;
// Goes through all EFS in command
while (fieldSetIter.Next() && EFSCount < scenes::kMaxClustersPerScene)
{
scenes::ExtensionFieldSet tempEFS;
tempEFS.mID = fieldSetIter.GetValue().clusterID;
MutableByteSpan buff_span(tempEFS.mBytesBuffer);
// Check if a handler is registered for the EFS's cluster
for (auto & handler : sceneTable->mHandlerList)
{
if (handler.SupportsCluster(ctx.mRequestPath.mEndpointId, tempEFS.mID))
{
ReturnOnFailure(AddResponseOnError(
ctx, response, handler.SerializeAdd(ctx.mRequestPath.mEndpointId, fieldSetIter.GetValue(), buff_span)));
break;
}
}
static_assert(sizeof(tempEFS.mBytesBuffer) <= UINT8_MAX, "Serialized EFS number of bytes must fit in a uint8");
tempEFS.mUsedBytes = static_cast<uint8_t>(buff_span.size());
if (!tempEFS.IsEmpty())
{
storageData.mExtensionFieldSets.InsertFieldSet(tempEFS);
}
}
ReturnOnFailure(AddResponseOnError(ctx, response, fieldSetIter.GetStatus()));
// Create scene from data and ID
SceneTableEntry scene(SceneStorageId(req.sceneID, req.groupID), storageData);
// Get Capacity
VerifyOrReturn(nullptr != sceneTable);
uint8_t capacity = 0;
ReturnOnFailure(AddResponseOnError(ctx, response,
sceneTable->GetRemainingCapacity(ctx.mCommandHandler.GetAccessingFabricIndex(), capacity)));
if (0 == capacity)
{
response.status = to_underlying(Protocols::InteractionModel::Status::ResourceExhausted);
ctx.mCommandHandler.AddResponse(ctx.mRequestPath, response);
return;
}
// Insert in table
ReturnOnFailure(
AddResponseOnError(ctx, response, sceneTable->SetSceneTableEntry(ctx.mCommandHandler.GetAccessingFabricIndex(), scene)));
// Update FabricSceneInfo
ReturnOnFailure(
AddResponseOnError(ctx, response,
UpdateFabricSceneInfo(ctx.mRequestPath.mEndpointId, ctx.mCommandHandler.GetAccessingFabricIndex(),
Optional<GroupId>(), Optional<SceneId>(), Optional<bool>())));
ReturnOnFailure(UpdateLastConfiguredBy(ctx, response));
// Write response
response.status = to_underlying(Protocols::InteractionModel::Status::Success);
ctx.mCommandHandler.AddResponse(ctx.mRequestPath, response);
}
template <typename CommandData, typename ResponseType>
void ViewSceneParse(HandlerContext & ctx, const CommandData & req, GroupDataProvider * groupProvider)
{
ResponseType response;
uint16_t endpointTableSize = 0;
ReturnOnFailure(
AddResponseOnError(ctx, response, Attributes::SceneTableSize::Get(ctx.mRequestPath.mEndpointId, &endpointTableSize)));
// Get Scene Table Instance
SceneTable * sceneTable = scenes::GetSceneTableImpl(ctx.mRequestPath.mEndpointId, endpointTableSize);
// Response data
response.groupID = req.groupID;
response.sceneID = req.sceneID;
// Verify the attributes are respecting constraints
if (req.sceneID == scenes::kUndefinedSceneId)
{
response.status = to_underlying(Protocols::InteractionModel::Status::ConstraintError);
ctx.mCommandHandler.AddResponse(ctx.mRequestPath, response);
return;
}
// Verify Endpoint in group
VerifyOrReturn(nullptr != groupProvider);
if (0 != req.groupID &&
!groupProvider->HasEndpoint(ctx.mCommandHandler.GetAccessingFabricIndex(), req.groupID, ctx.mRequestPath.mEndpointId))
{
response.status = to_underlying(Protocols::InteractionModel::Status::InvalidCommand);
ctx.mCommandHandler.AddResponse(ctx.mRequestPath, response);
return;
}
SceneTableEntry scene;
// Gets the scene from the table
ReturnOnFailure(AddResponseOnError(ctx, response,
sceneTable->GetSceneTableEntry(ctx.mCommandHandler.GetAccessingFabricIndex(),
SceneStorageId(req.sceneID, req.groupID), scene)));
// Response Extension Field Sets buffer
Structs::ExtensionFieldSet::Type responseEFSBuffer[scenes::kMaxClustersPerScene];
uint8_t deserializedEFSCount = 0;
// Adds extension field sets to the scene
for (uint8_t i = 0; i < scene.mStorageData.mExtensionFieldSets.GetFieldSetCount(); i++)
{
// gets data from the field in the scene
ExtensionFieldSet tempField;
scene.mStorageData.mExtensionFieldSets.GetFieldSetAtPosition(tempField, i);
ByteSpan efsSpan(tempField.mBytesBuffer, tempField.mUsedBytes);
// This should only find one handle per cluster
for (auto & handler : sceneTable->mHandlerList)
{
if (handler.SupportsCluster(ctx.mRequestPath.mEndpointId, tempField.mID))
{
ReturnOnFailure(AddResponseOnError(
ctx, response,
handler.Deserialize(ctx.mRequestPath.mEndpointId, tempField.mID, efsSpan, responseEFSBuffer[i])));
deserializedEFSCount++;
break;
}
}
}
response.status = to_underlying(Protocols::InteractionModel::Status::Success);
response.transitionTime.SetValue(scene.mStorageData.mSceneTransitionTimeMs);
response.sceneName.SetValue(CharSpan(scene.mStorageData.mName, scene.mStorageData.mNameLength));
Span<Structs::ExtensionFieldSet::Type> responseEFSSpan(responseEFSBuffer, deserializedEFSCount);
response.extensionFieldSets.SetValue(responseEFSSpan);
ctx.mCommandHandler.AddResponse(ctx.mRequestPath, response);
}
CHIP_ERROR StoreSceneParse(const FabricIndex & fabricIdx, const EndpointId & endpointID, const GroupId & groupID,
const SceneId & sceneID, GroupDataProvider * groupProvider)
{
// Make the current fabric's SceneValid false before storing a scene
ScenesServer::Instance().MakeSceneInvalid(endpointID, fabricIdx);
uint16_t endpointTableSize = 0;
ReturnErrorOnFailure(StatusIB(Attributes::SceneTableSize::Get(endpointID, &endpointTableSize)).ToChipError());
// Get Scene Table Instance
SceneTable * sceneTable = scenes::GetSceneTableImpl(endpointID, endpointTableSize);
// Verify Endpoint in group
VerifyOrReturnError(nullptr != groupProvider, CHIP_ERROR_INTERNAL);
if (0 != groupID && !groupProvider->HasEndpoint(fabricIdx, groupID, endpointID))
{
return CHIP_IM_GLOBAL_STATUS(InvalidCommand);
}
// Scene Table interface data
SceneTableEntry scene(SceneStorageId(sceneID, groupID));
VerifyOrReturnError(nullptr != sceneTable, CHIP_ERROR_INTERNAL);
CHIP_ERROR err = sceneTable->GetSceneTableEntry(fabricIdx, scene.mStorageId, scene);
if (CHIP_NO_ERROR != err && CHIP_ERROR_NOT_FOUND != err)
{
return err;
}
if (CHIP_ERROR_NOT_FOUND == err)
{
scene.mStorageData.SetName(CharSpan());
scene.mStorageData.mSceneTransitionTimeMs = 0;
}
else
{
uint32_t featureMap = 0;
ReturnErrorOnFailure(StatusIB(Attributes::FeatureMap::Get(endpointID, &featureMap)).ToChipError());
// Check if we still support scenes name in case an OTA changed that, if we don't, set name to empty
if (!(featureMap & to_underlying(Feature::kSceneNames)))
{
scene.mStorageData.SetName(CharSpan());
}
scene.mStorageData.mExtensionFieldSets.Clear();
}
// Gets the EFS
ReturnErrorOnFailure(sceneTable->SceneSaveEFS(scene));
// Insert in Scene Table
ReturnErrorOnFailure(sceneTable->SetSceneTableEntry(fabricIdx, scene));
// Update SceneInfo Attribute
ReturnErrorOnFailure(UpdateFabricSceneInfo(endpointID, fabricIdx, MakeOptional(groupID), MakeOptional(sceneID),
MakeOptional(static_cast<bool>(true))));
return CHIP_NO_ERROR;
}
CHIP_ERROR RecallSceneParse(const FabricIndex & fabricIdx, const EndpointId & endpointID, const GroupId & groupID,
const SceneId & sceneID, const Optional<DataModel::Nullable<uint32_t>> & transitionTime,
GroupDataProvider * groupProvider)
{
// Make SceneValid false for all fabrics before recalling a scene
ScenesServer::Instance().MakeSceneInvalidForAllFabrics(endpointID);
uint16_t endpointTableSize = 0;
ReturnErrorOnFailure(StatusIB(Attributes::SceneTableSize::Get(endpointID, &endpointTableSize)).ToChipError());
// Get Scene Table Instance
SceneTable * sceneTable = scenes::GetSceneTableImpl(endpointID, endpointTableSize);
// Verify Endpoint in group
VerifyOrReturnError(nullptr != groupProvider, CHIP_ERROR_INTERNAL);
if (0 != groupID && !groupProvider->HasEndpoint(fabricIdx, groupID, endpointID))
{
return CHIP_IM_GLOBAL_STATUS(InvalidCommand);
}
// Scene Table interface data
SceneTableEntry scene(SceneStorageId(sceneID, groupID));
VerifyOrReturnError(nullptr != sceneTable, CHIP_ERROR_INTERNAL);
ReturnErrorOnFailure(sceneTable->GetSceneTableEntry(fabricIdx, scene.mStorageId, scene));
// Check for optional
if (transitionTime.HasValue())
{
// Check for nullable
if (!transitionTime.Value().IsNull())
{
scene.mStorageData.mSceneTransitionTimeMs = transitionTime.Value().Value();
}
}
ReturnErrorOnFailure(sceneTable->SceneApplyEFS(scene));
// Update FabricSceneInfo, at this point the scene is considered valid
ReturnErrorOnFailure(
UpdateFabricSceneInfo(endpointID, fabricIdx, Optional<GroupId>(groupID), Optional<SceneId>(sceneID), Optional<bool>(true)));
return CHIP_NO_ERROR;
}
// CommandHanlerInterface
void ScenesServer::InvokeCommand(HandlerContext & ctxt)
{
switch (ctxt.mRequestPath.mCommandId)
{
case Commands::AddScene::Id:
HandleCommand<Commands::AddScene::DecodableType>(
ctxt, [this](HandlerContext & ctx, const auto & req) { HandleAddScene(ctx, req); });
return;
case Commands::ViewScene::Id:
HandleCommand<Commands::ViewScene::DecodableType>(
ctxt, [this](HandlerContext & ctx, const auto & req) { HandleViewScene(ctx, req); });
return;
case Commands::RemoveScene::Id:
HandleCommand<Commands::RemoveScene::DecodableType>(
ctxt, [this](HandlerContext & ctx, const auto & req) { HandleRemoveScene(ctx, req); });
return;
case Commands::RemoveAllScenes::Id:
HandleCommand<Commands::RemoveAllScenes::DecodableType>(
ctxt, [this](HandlerContext & ctx, const auto & req) { HandleRemoveAllScenes(ctx, req); });
return;
case Commands::StoreScene::Id:
HandleCommand<Commands::StoreScene::DecodableType>(
ctxt, [this](HandlerContext & ctx, const auto & req) { HandleStoreScene(ctx, req); });
return;
case Commands::RecallScene::Id:
HandleCommand<Commands::RecallScene::DecodableType>(
ctxt, [this](HandlerContext & ctx, const auto & req) { HandleRecallScene(ctx, req); });
return;
case Commands::GetSceneMembership::Id:
HandleCommand<Commands::GetSceneMembership::DecodableType>(
ctxt, [this](HandlerContext & ctx, const auto & req) { HandleGetSceneMembership(ctx, req); });
return;
case Commands::CopyScene::Id:
HandleCommand<Commands::CopyScene::DecodableType>(
ctxt, [this](HandlerContext & ctx, const auto & req) { HandleCopyScene(ctx, req); });
return;
}
}
// AttributeAccessInterface
CHIP_ERROR ScenesServer::Read(const ConcreteReadAttributePath & aPath, AttributeValueEncoder & aEncoder)
{
uint16_t endpointTableSize = 0;
ReturnErrorOnFailure(StatusIB(Attributes::SceneTableSize::Get(aPath.mEndpointId, &endpointTableSize)).ToChipError());
// Get Scene Table Instance
SceneTable * sceneTable = scenes::GetSceneTableImpl(aPath.mEndpointId, endpointTableSize);
switch (aPath.mAttributeId)
{
case Attributes::FabricSceneInfo::Id: {
return aEncoder.EncodeList([&, sceneTable](const auto & encoder) -> CHIP_ERROR {
Span<Structs::SceneInfoStruct::Type> fabricSceneInfoSpan = mFabricSceneInfo.GetFabricSceneInfo(aPath.mEndpointId);
for (auto & info : fabricSceneInfoSpan)
{
// Update the SceneInfoStruct's Capacity in case it's capacity was limited by other fabrics
sceneTable->GetRemainingCapacity(info.fabricIndex, info.remainingCapacity);
ReturnErrorOnFailure(encoder.Encode(info));
}
return CHIP_NO_ERROR;
});
}
default:
return CHIP_NO_ERROR;
}
}
Structs::SceneInfoStruct::Type * ScenesServer::GetSceneInfoStruct(EndpointId endpoint, FabricIndex fabric)
{
Structs::SceneInfoStruct::Type * sceneInfoStruct = mFabricSceneInfo.GetSceneInfoStruct(endpoint, fabric);
return sceneInfoStruct;
}
CHIP_ERROR ScenesServer::SetSceneInfoStruct(EndpointId endpoint, FabricIndex fabric,
Structs::SceneInfoStruct::Type & sceneInfoStruct)
{
ReturnErrorOnFailure(mFabricSceneInfo.SetSceneInfoStruct(endpoint, fabric, sceneInfoStruct));
return CHIP_NO_ERROR;
}
void ScenesServer::GroupWillBeRemoved(FabricIndex aFabricIx, EndpointId aEndpointId, GroupId aGroupId)
{
// Get Scene Table Instance
SceneTable * sceneTable = scenes::GetSceneTableImpl(aEndpointId);
VerifyOrReturn(nullptr != sceneTable);
Structs::SceneInfoStruct::Type * sceneInfo = mFabricSceneInfo.GetSceneInfoStruct(aEndpointId, aFabricIx);
chip::GroupId currentGroup = (nullptr != sceneInfo) ? sceneInfo->currentGroup : 0x0000;
// If currentGroup is what is being removed, we can't possibly still have a valid scene,
// because the scene we have (if any) will also be removed.
if (aGroupId == currentGroup)
{
MakeSceneInvalid(aEndpointId, aFabricIx);
}
VerifyOrReturn(nullptr != mGroupProvider);
if (0 != aGroupId && !mGroupProvider->HasEndpoint(aFabricIx, aGroupId, aEndpointId))
{
return;
}
sceneTable->DeleteAllScenesInGroup(aFabricIx, aGroupId);
}
void ScenesServer::MakeSceneInvalid(EndpointId aEndpointId, FabricIndex aFabricIx)
{
UpdateFabricSceneInfo(aEndpointId, aFabricIx, Optional<GroupId>(), Optional<SceneId>(), Optional<bool>(false));
}
void ScenesServer::MakeSceneInvalidForAllFabrics(EndpointId aEndpointId)
{
for (auto & info : chip::Server::GetInstance().GetFabricTable())
{
MakeSceneInvalid(aEndpointId, info.GetFabricIndex());
}
}
void ScenesServer::StoreCurrentScene(FabricIndex aFabricIx, EndpointId aEndpointId, GroupId aGroupId, SceneId aSceneId)
{
StoreSceneParse(aFabricIx, aEndpointId, aGroupId, aSceneId, mGroupProvider);
}
void ScenesServer::RecallScene(FabricIndex aFabricIx, EndpointId aEndpointId, GroupId aGroupId, SceneId aSceneId)
{
Optional<DataModel::Nullable<uint32_t>> transitionTime;
RecallSceneParse(aFabricIx, aEndpointId, aGroupId, aSceneId, transitionTime, mGroupProvider);
}
bool ScenesServer::IsHandlerRegistered(EndpointId aEndpointId, scenes::SceneHandler * handler)
{
SceneTable * sceneTable = scenes::GetSceneTableImpl(aEndpointId);
return sceneTable->mHandlerList.Contains(handler);
}
void ScenesServer::RegisterSceneHandler(EndpointId aEndpointId, scenes::SceneHandler * handler)
{
SceneTable * sceneTable = scenes::GetSceneTableImpl(aEndpointId);
if (!IsHandlerRegistered(aEndpointId, handler))
{
sceneTable->RegisterHandler(handler);
}
}
void ScenesServer::UnregisterSceneHandler(EndpointId aEndpointId, scenes::SceneHandler * handler)
{
SceneTable * sceneTable = scenes::GetSceneTableImpl(aEndpointId);
if (IsHandlerRegistered(aEndpointId, handler))
{
sceneTable->UnregisterHandler(handler);
}
}
void ScenesServer::RemoveFabric(EndpointId aEndpointId, FabricIndex aFabricIndex)
{
SceneTable * sceneTable = scenes::GetSceneTableImpl(aEndpointId);
sceneTable->RemoveFabric(aFabricIndex);
mFabricSceneInfo.ClearSceneInfoStruct(aEndpointId, aFabricIndex);
}
void ScenesServer::HandleAddScene(HandlerContext & ctx, const Commands::AddScene::DecodableType & req)
{
MATTER_TRACE_SCOPE("AddScene", "Scenes");
AddSceneParse<Commands::AddScene::DecodableType, Commands::AddSceneResponse::Type>(ctx, req, mGroupProvider);
}
void ScenesServer::HandleViewScene(HandlerContext & ctx, const Commands::ViewScene::DecodableType & req)
{
MATTER_TRACE_SCOPE("ViewScene", "Scenes");
ViewSceneParse<Commands::ViewScene::DecodableType, Commands::ViewSceneResponse::Type>(ctx, req, mGroupProvider);
}
void ScenesServer::HandleRemoveScene(HandlerContext & ctx, const Commands::RemoveScene::DecodableType & req)
{
MATTER_TRACE_SCOPE("RemoveScene", "Scenes");
Commands::RemoveSceneResponse::Type response;
uint16_t endpointTableSize = 0;
ReturnOnFailure(
AddResponseOnError(ctx, response, Attributes::SceneTableSize::Get(ctx.mRequestPath.mEndpointId, &endpointTableSize)));
// Get Scene Table Instance
SceneTable * sceneTable = scenes::GetSceneTableImpl(ctx.mRequestPath.mEndpointId, endpointTableSize);
// Response data
response.groupID = req.groupID;
response.sceneID = req.sceneID;
// Verify the attributes are respecting constraints
if (req.sceneID == scenes::kUndefinedSceneId)
{
response.status = to_underlying(Protocols::InteractionModel::Status::ConstraintError);
ctx.mCommandHandler.AddResponse(ctx.mRequestPath, response);
return;
}
// Scene Table interface data
SceneTableEntry scene(SceneStorageId(req.sceneID, req.groupID));
// Verify Endpoint in group
VerifyOrReturn(nullptr != mGroupProvider);
if (0 != req.groupID &&
!mGroupProvider->HasEndpoint(ctx.mCommandHandler.GetAccessingFabricIndex(), req.groupID, ctx.mRequestPath.mEndpointId))
{
response.status = to_underlying(Protocols::InteractionModel::Status::InvalidCommand);
ctx.mCommandHandler.AddResponse(ctx.mRequestPath, response);
return;
}
// Gets the scene from the table
ReturnOnFailure(AddResponseOnError(
ctx, response, sceneTable->GetSceneTableEntry(ctx.mCommandHandler.GetAccessingFabricIndex(), scene.mStorageId, scene)));
// Remove the scene from the scene table
ReturnOnFailure(AddResponseOnError(
ctx, response, sceneTable->RemoveSceneTableEntry(ctx.mCommandHandler.GetAccessingFabricIndex(), scene.mStorageId)));
// Update SceneInfoStruct Attributes
Structs::SceneInfoStruct::Type * sceneInfo =
GetSceneInfoStruct(ctx.mRequestPath.mEndpointId, ctx.mCommandHandler.GetAccessingFabricIndex());
Optional<bool> sceneValid;
if (nullptr != sceneInfo && req.groupID == sceneInfo->currentGroup && req.sceneID == sceneInfo->currentScene)
{
sceneValid.Emplace(false);
}
ReturnOnFailure(UpdateLastConfiguredBy(ctx, response));
ReturnOnFailure(
AddResponseOnError(ctx, response,
UpdateFabricSceneInfo(ctx.mRequestPath.mEndpointId, ctx.mCommandHandler.GetAccessingFabricIndex(),
Optional<GroupId>(), Optional<SceneId>(), sceneValid)));
// Write response
response.status = to_underlying(Protocols::InteractionModel::Status::Success);
ctx.mCommandHandler.AddResponse(ctx.mRequestPath, response);
}
void ScenesServer::HandleRemoveAllScenes(HandlerContext & ctx, const Commands::RemoveAllScenes::DecodableType & req)
{
MATTER_TRACE_SCOPE("RemoveAllScenes", "Scenes");
Commands::RemoveAllScenesResponse::Type response;
uint16_t endpointTableSize = 0;
ReturnOnFailure(
AddResponseOnError(ctx, response, Attributes::SceneTableSize::Get(ctx.mRequestPath.mEndpointId, &endpointTableSize)));
// Get Scene Table Instance
SceneTable * sceneTable = scenes::GetSceneTableImpl(ctx.mRequestPath.mEndpointId, endpointTableSize);
// Response data
response.groupID = req.groupID;
// Verify Endpoint in group
VerifyOrReturn(nullptr != mGroupProvider);
if (0 != req.groupID &&
!mGroupProvider->HasEndpoint(ctx.mCommandHandler.GetAccessingFabricIndex(), req.groupID, ctx.mRequestPath.mEndpointId))
{
response.status = to_underlying(Protocols::InteractionModel::Status::InvalidCommand);
ctx.mCommandHandler.AddResponse(ctx.mRequestPath, response);
return;
}
ReturnOnFailure(AddResponseOnError(
ctx, response, sceneTable->DeleteAllScenesInGroup(ctx.mCommandHandler.GetAccessingFabricIndex(), req.groupID)));
// Update Attributes
Structs::SceneInfoStruct::Type * sceneInfo =
GetSceneInfoStruct(ctx.mRequestPath.mEndpointId, ctx.mCommandHandler.GetAccessingFabricIndex());
Optional<bool> sceneValid;
if (nullptr != sceneInfo && req.groupID == sceneInfo->currentGroup)
{
sceneValid.Emplace(false);
}
ReturnOnFailure(
AddResponseOnError(ctx, response,
UpdateFabricSceneInfo(ctx.mRequestPath.mEndpointId, ctx.mCommandHandler.GetAccessingFabricIndex(),
Optional<GroupId>(), Optional<SceneId>(), sceneValid)));
ReturnOnFailure(UpdateLastConfiguredBy(ctx, response));
// Write response
response.status = to_underlying(Protocols::InteractionModel::Status::Success);
ctx.mCommandHandler.AddResponse(ctx.mRequestPath, response);
}
void ScenesServer::HandleStoreScene(HandlerContext & ctx, const Commands::StoreScene::DecodableType & req)
{
MATTER_TRACE_SCOPE("StoreScene", "Scenes");
Commands::StoreSceneResponse::Type response;
// Response data
response.groupID = req.groupID;
response.sceneID = req.sceneID;
// Verify the attributes are respecting constraints
if (req.sceneID == scenes::kUndefinedSceneId)
{
response.status = to_underlying(Protocols::InteractionModel::Status::ConstraintError);
ctx.mCommandHandler.AddResponse(ctx.mRequestPath, response);
return;
}
CHIP_ERROR err = StoreSceneParse(ctx.mCommandHandler.GetAccessingFabricIndex(), ctx.mRequestPath.mEndpointId, req.groupID,
req.sceneID, mGroupProvider);
ReturnOnFailure(AddResponseOnError(ctx, response, err));
ReturnOnFailure(UpdateLastConfiguredBy(ctx, response));
response.status = to_underlying(Protocols::InteractionModel::Status::Success);
ctx.mCommandHandler.AddResponse(ctx.mRequestPath, response);
}
void ScenesServer::HandleRecallScene(HandlerContext & ctx, const Commands::RecallScene::DecodableType & req)
{
MATTER_TRACE_SCOPE("RecallScene", "Scenes");
// Verify the attributes are respecting constraints
if (req.sceneID == scenes::kUndefinedSceneId)
{
ctx.mCommandHandler.AddStatus(ctx.mRequestPath, Protocols::InteractionModel::Status::ConstraintError);
return;
}
CHIP_ERROR err = RecallSceneParse(ctx.mCommandHandler.GetAccessingFabricIndex(), ctx.mRequestPath.mEndpointId, req.groupID,
req.sceneID, req.transitionTime, mGroupProvider);
if (CHIP_NO_ERROR == err)
{
ctx.mCommandHandler.AddStatus(ctx.mRequestPath, Protocols::InteractionModel::Status::Success);
return;
}
if (CHIP_ERROR_NOT_FOUND == err)
{