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Diffstat (limited to 'ahl-binding/ahl-binding.c')
| -rw-r--r-- | ahl-binding/ahl-binding.c | 1577 |
1 files changed, 1577 insertions, 0 deletions
diff --git a/ahl-binding/ahl-binding.c b/ahl-binding/ahl-binding.c new file mode 100644 index 0000000..264930f --- /dev/null +++ b/ahl-binding/ahl-binding.c @@ -0,0 +1,1577 @@ +/* + * Copyright (C) 2017 "Audiokinetic Inc" + * + * 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. + */ + +#define _GNU_SOURCE +#include <stdio.h> +#include <string.h> + +#include "ahl-binding.h" +#include "ahl-apidef.h" // Generated from JSON OpenAPI +#include "wrap-json.h" +#include "ahl-policy.h" +#include "ahl-policy-utils.h" + +// Global high-level binding context +AHLCtxT g_AHLCtx; + +// TODO: Helpers that could be common +static EndpointTypeT EndpointTypeToEnum(char * in_pEndpointTypeStr) +{ + if (in_pEndpointTypeStr == NULL) { + return ENDPOINTTYPE_MAXVALUE; + } + else if (strcasecmp(in_pEndpointTypeStr,AHL_ENDPOINTTYPE_SOURCE)==0) { + return ENDPOINTTYPE_SOURCE; + } + else if (strcasecmp(in_pEndpointTypeStr,AHL_ENDPOINTTYPE_SINK)==0) { + return ENDPOINTTYPE_SINK; + } + else + return ENDPOINTTYPE_MAXVALUE; +} + +static StreamStateT StreamStateToEnum(char * in_pStreamStateStr) +{ + if (in_pStreamStateStr == NULL) { + return STREAM_STATE_MAXVALUE; + } + else if (strcasecmp(in_pStreamStateStr,AHL_STREAM_STATE_IDLE)==0) { + return STREAM_STATE_IDLE; + } + else if (strcasecmp(in_pStreamStateStr,AHL_STREAM_STATE_RUNNING)==0) { + return STREAM_STATE_RUNNING; + } + else if (strcasecmp(in_pStreamStateStr,AHL_STREAM_STATE_PAUSED)==0) { + return STREAM_STATE_PAUSED; + } + else + return STREAM_STATE_MAXVALUE; +} + +static StreamMuteT StreamMuteToEnum(char * in_pStreamMuteStr) +{ + if (in_pStreamMuteStr == NULL) { + return STREAM_MUTE_MAXVALUE; + } + else if (strcasecmp(in_pStreamMuteStr,AHL_STREAM_UNMUTED)==0) { + return STREAM_UNMUTED; + } + else if (strcasecmp(in_pStreamMuteStr,AHL_STREAM_MUTED)==0) { + return STREAM_MUTED; + } + else + return STREAM_MUTE_MAXVALUE; +} + +static char * DeviceURITypeEnumToStr(DeviceURITypeT in_eDeviceURIType) { + switch(in_eDeviceURIType) { + case DEVICEURITYPE_ALSA_HW: // Alsa hardware device URI + return AHL_DEVICEURITYPE_ALSA_HW; + case DEVICEURITYPE_ALSA_DMIX: // Alsa Dmix device URI (only for playback devices) + return AHL_DEVICEURITYPE_ALSA_DMIX; + case DEVICEURITYPE_ALSA_DSNOOP: // Alsa DSnoop device URI (only for capture devices) + return AHL_DEVICEURITYPE_ALSA_DSNOOP; + case DEVICEURITYPE_ALSA_SOFTVOL: // Alsa softvol device URI + return AHL_DEVICEURITYPE_ALSA_SOFTVOL; + case DEVICEURITYPE_ALSA_PLUG: // Alsa plug device URI + return AHL_DEVICEURITYPE_ALSA_PLUG; + case DEVICEURITYPE_ALSA_OTHER: // Alsa domain URI device of unspecified type + return AHL_DEVICEURITYPE_ALSA_OTHER; + case DEVICEURITYPE_NOT_ALSA: // Unknown (not ALSA domain) + return AHL_DEVICEURITYPE_NOT_ALSA; + default: + return "Unknown"; + } +} + +static char * StreamStateEnumToStr(StreamStateT in_eStreamState) { + switch(in_eStreamState) { + case STREAM_STATE_IDLE: + return AHL_STREAM_STATE_IDLE; + case STREAM_STATE_RUNNING: + return AHL_STREAM_STATE_RUNNING; + case STREAM_STATE_PAUSED: + return AHL_STREAM_STATE_PAUSED; + default: + return "Unknown"; + } +} + +static char * StreamMuteEnumToStr(StreamMuteT in_eStreamMute) { + switch(in_eStreamMute) { + case STREAM_UNMUTED: + return AHL_STREAM_UNMUTED; + case STREAM_MUTED: + return AHL_STREAM_MUTED; + default: + return "Unknown"; + } +} + +static void AudioFormatStructToJSON(json_object **audioFormatJ, AudioFormatT * pAudioFormat) +{ + wrap_json_pack(audioFormatJ, "{s:i,s:i,s:i}", + "sample_rate", pAudioFormat->sampleRate, + "num_channels", pAudioFormat->numChannels, + "sample_type", pAudioFormat->sampleType); +} + +// Package only information that can useful to application clients when selecting endpoint +static void EndpointInfoStructToJSON(json_object **endpointInfoJ, EndpointInfoT * pEndpointInfo) +{ + json_object *formatInfoJ = NULL; + wrap_json_pack(endpointInfoJ, "{s:i,s:s,s:s,s:s,s:s,s:s,s:s}", + "endpoint_id", pEndpointInfo->endpointID, + "endpoint_type", (pEndpointInfo->type == ENDPOINTTYPE_SOURCE) ? AHL_ENDPOINTTYPE_SOURCE : AHL_ENDPOINTTYPE_SINK, + "device_name", pEndpointInfo->gsDeviceName, + "display_name", pEndpointInfo->gsDisplayName, + "audio_role", pEndpointInfo->pRoleName, + "device_domain",pEndpointInfo->gsDeviceDomain, + "device_uri_type", DeviceURITypeEnumToStr(pEndpointInfo->deviceURIType)); + AudioFormatStructToJSON(&formatInfoJ,&pEndpointInfo->format); + json_object_object_add(*endpointInfoJ,"format",formatInfoJ); + + // Properties + if (pEndpointInfo->pPropTable) { + json_object *pPropTableJ = json_object_new_array(); + + GHashTableIter iter; + gpointer key, value; + g_hash_table_iter_init (&iter, pEndpointInfo->pPropTable); + while (g_hash_table_iter_next (&iter, &key, &value)) + { + if((key!=NULL) && (value!=NULL)) + { + json_object *pPropertyJ = NULL; + json_object_get((json_object*)value); // Don't let the framework free our object when the request is done + wrap_json_pack(&pPropertyJ, "{s:s,s:o}","property_name", (char*)key, "property_value", (json_object*)value); + json_object_array_add(pPropTableJ, pPropertyJ); + } + } + json_object_object_add(*endpointInfoJ,"properties",pPropTableJ); + } +} + +// Package only information that can useful to application clients when opening a stream +static void StreamInfoStructToJSON(json_object **streamInfoJ, StreamInfoT * pStreamInfo) +{ + json_object *endpointInfoJ = NULL; + EndpointInfoStructToJSON(&endpointInfoJ,pStreamInfo->pEndpointInfo); + wrap_json_pack(streamInfoJ, "{s:i,s:s,s:s,s:s}", + "stream_id", pStreamInfo->streamID, + "state", StreamStateEnumToStr(pStreamInfo->streamState), + "mute", StreamMuteEnumToStr(pStreamInfo->streamMute), + "device_uri",pStreamInfo->pEndpointInfo->gsDeviceURI); // Need to open a stream to have access to the device URI + json_object_object_add(*streamInfoJ,"endpoint_info",endpointInfoJ); +} + +static streamID_t CreateNewStreamID() +{ + streamID_t newID = g_AHLCtx.nextStreamID; + g_AHLCtx.nextStreamID++; + return newID; +} + +static EndpointInfoT * GetEndpointInfoWithRole(endpointID_t in_endpointID, EndpointTypeT in_endpointType, RoleInfoT * in_pRole) +{ + EndpointInfoT * pEndpointInfo = NULL; + GPtrArray * pDeviceArray = NULL; + if (in_endpointType == ENDPOINTTYPE_SOURCE){ + pDeviceArray = in_pRole->pSourceEndpoints; + } + else { + pDeviceArray = in_pRole->pSinkEndpoints; + } + g_assert_nonnull(pDeviceArray); + + for (int j = 0; j < pDeviceArray->len; j++) { + EndpointInfoT * pCurEndpointInfo = g_ptr_array_index(pDeviceArray,j); + g_assert_nonnull(pCurEndpointInfo); + if (pCurEndpointInfo->endpointID == in_endpointID) { + pEndpointInfo = pCurEndpointInfo; + break; + } + } + + return pEndpointInfo; +} + +static int ReplaceEndpointInfoWithRole(endpointID_t in_endpointID, EndpointTypeT in_endpointType, RoleInfoT * in_pRole, EndpointInfoT * in_pNewEndpoint) +{ + GPtrArray * pDeviceArray = NULL; + if (in_endpointType == ENDPOINTTYPE_SOURCE){ + pDeviceArray = in_pRole->pSourceEndpoints; + } + else { + pDeviceArray = in_pRole->pSinkEndpoints; + } + g_assert_nonnull(pDeviceArray); + + for (int j = 0; j < pDeviceArray->len; j++) { + EndpointInfoT * pCurEndpointInfo = g_ptr_array_index(pDeviceArray,j); + g_assert_nonnull(pCurEndpointInfo); + if (pCurEndpointInfo->endpointID == in_endpointID) { + g_ptr_array_insert(pDeviceArray,j,in_pNewEndpoint); + g_ptr_array_remove_index(pDeviceArray,j+1); + TermEndpointInfo(pCurEndpointInfo); + // GLib automatically frees item upon array removal + return AHL_SUCCESS; + } + } + + return AHL_FAIL; +} + +static EndpointInfoT * GetEndpointInfo(endpointID_t in_endpointID, EndpointTypeT in_endpointType) +{ + EndpointInfoT * pEndpointInfo = NULL; + + GHashTableIter iter; + gpointer key, value; + g_hash_table_iter_init (&iter, g_AHLCtx.policyCtx.pRoleInfo); + while (pEndpointInfo == NULL && g_hash_table_iter_next (&iter, &key, &value)) + { + RoleInfoT * pRoleInfo = (RoleInfoT*)value; + pEndpointInfo = GetEndpointInfoWithRole(in_endpointID,in_endpointType,pRoleInfo); + } + + return pEndpointInfo; +} + +static StreamInfoT * GetStream(streamID_t in_streamID) +{ + if (g_AHLCtx.policyCtx.pStreams == NULL) + return NULL; + + return g_hash_table_lookup(g_AHLCtx.policyCtx.pStreams,GINT_TO_POINTER(&in_streamID)); +} + +static RoleInfoT * GetRole(char * in_pAudioRoleName) +{ + if (g_AHLCtx.policyCtx.pRoleInfo == NULL) + return NULL; + + return g_hash_table_lookup(g_AHLCtx.policyCtx.pRoleInfo,in_pAudioRoleName); +} + +static AHLClientCtxT * AllocateClientContext() +{ + AHLClientCtxT * pClientCtx = malloc(sizeof(AHLClientCtxT)); + pClientCtx->pStreamAccessList = g_array_new(FALSE, TRUE, sizeof(streamID_t)); + return pClientCtx; +} + +static void TerminateClientContext(void * ptr) +{ + AHLClientCtxT * pClientCtx = (AHLClientCtxT *) ptr; + if (pClientCtx != NULL) { + + // Avoid having policy in bad state if client loses WS connection (e.g. app termination without close stream) + // Force close streams in those cases. + + if (pClientCtx->pStreamAccessList != NULL) { +#ifndef AHL_DISCONNECT_POLICY + for (int i = 0; i < pClientCtx->pStreamAccessList->len; i++) + { + streamID_t streamID = g_array_index(pClientCtx->pStreamAccessList,streamID_t,i); + // Call policy to verify whether creating a new audio stream is allowed in current context and possibly take other actions + StreamInfoT * pStreamInfo = GetStream(streamID); + if (pStreamInfo == NULL) { + AFB_ERROR("Specified stream not currently active stream_id -> %d",streamID); + return; + } + + json_object *pPolicyStreamJ = NULL; + int err = PolicyStreamStructToJSON(pStreamInfo, &pPolicyStreamJ); + if (err == AHL_POLICY_UTIL_FAIL) + { + AFB_ERROR("Audio policy violation, Unable to get JSON object for Policy_CloseStream"); + return; + } + Policy_CloseStream(pPolicyStreamJ); + } +#endif + g_array_free( pClientCtx->pStreamAccessList, TRUE); + pClientCtx->pStreamAccessList = NULL; + } + free(pClientCtx); + } +} + +static int CheckStreamAccessControl(AHLClientCtxT * pClientCtx, streamID_t streamID) +{ + int iAccessControl = AHL_ACCESS_CONTROL_DENIED; + if (pClientCtx && pClientCtx->pStreamAccessList) { + for (int i = 0; i < pClientCtx->pStreamAccessList->len ; i++) { + streamID_t iID = g_array_index(pClientCtx->pStreamAccessList,streamID_t,i); + if (iID == streamID) { + iAccessControl = AHL_ACCESS_CONTROL_GRANTED; + } + } + } + return iAccessControl; +} + +static int CreateEvents() +{ + int err = 0; + + g_AHLCtx.policyCtx.propertyEvent = afb_daemon_make_event(AHL_ENDPOINT_PROPERTY_EVENT); + err = !afb_event_is_valid(g_AHLCtx.policyCtx.propertyEvent); + if (err) { + AFB_ERROR("Could not create endpoint property change event"); + return err; + } + + g_AHLCtx.policyCtx.volumeEvent = afb_daemon_make_event(AHL_ENDPOINT_VOLUME_EVENT); + err = !afb_event_is_valid(g_AHLCtx.policyCtx.volumeEvent); + if (err) { + AFB_ERROR("Could not create endpoint volume change event"); + return err; + } + + g_AHLCtx.policyCtx.postActionEvent = afb_daemon_make_event(AHL_POST_ACTION_EVENT); + err = !afb_event_is_valid(g_AHLCtx.policyCtx.postActionEvent); + if (err) { + AFB_ERROR("Could not create post action event call event"); + return err; + } + + return err; +} + +static void AhlBindingTerm() +{ +#ifndef AHL_DISCONNECT_POLICY + // Policy termination + Policy_Term(); +#endif + + // Roles + if (g_AHLCtx.policyCtx.pRoleInfo != NULL) { + GHashTableIter iter; + gpointer key, value; + g_hash_table_iter_init(&iter, g_AHLCtx.policyCtx.pRoleInfo); + while (g_hash_table_iter_next (&iter, &key, &value)) + { + RoleInfoT * pRole = (RoleInfoT *)value; + if (pRole) + { + if(pRole->pRoleName) { + g_free(pRole->pRoleName); + pRole->pRoleName = NULL; + } + // Actions + if (pRole->pActionList) { + for (int i = 0; i < pRole->pActionList->len; i++) + { + g_ptr_array_remove_index( pRole->pActionList, i ); // Free char * is called by GLib + } + } + // Source endpoints + if (pRole->pSourceEndpoints) { + for (int i = 0; i < pRole->pSourceEndpoints->len; i++) + { + EndpointInfoT * pEndpoint = g_ptr_array_remove_index( pRole->pSourceEndpoints, i ); // Free endpoint * is called by GLib + if (pEndpoint) { + TermEndpointInfo(pEndpoint); + } + } + } + // Sink endpoints + if (pRole->pSinkEndpoints) { + for (int i = 0; i < pRole->pSinkEndpoints->len; i++) + { + EndpointInfoT * pEndpoint = g_ptr_array_remove_index( pRole->pSinkEndpoints, i ); // Free endpoint * is called by GLib + if (pEndpoint) { + TermEndpointInfo(pEndpoint); + } + } + } + free(pRole); + } + } + g_hash_table_remove_all(g_AHLCtx.policyCtx.pRoleInfo); + g_hash_table_destroy(g_AHLCtx.policyCtx.pRoleInfo); + g_AHLCtx.policyCtx.pRoleInfo = NULL; + } + + if (g_AHLCtx.policyCtx.pStreams) { + GHashTableIter iter; + gpointer key, value; + g_hash_table_iter_init (&iter, g_AHLCtx.policyCtx.pStreams); + while (g_hash_table_iter_next (&iter, &key, &value)) + { + if (value) + free(value); + } + g_hash_table_remove_all(g_AHLCtx.policyCtx.pStreams); + g_hash_table_destroy(g_AHLCtx.policyCtx.pStreams); + g_AHLCtx.policyCtx.pStreams = NULL; + } + + if (g_AHLCtx.policyCtx.pHALList) { + g_ptr_array_free(g_AHLCtx.policyCtx.pHALList,TRUE); + g_AHLCtx.policyCtx.pHALList = NULL; + } + + AFB_INFO("Audio high-level binding termination success"); +} + +// Binding initialization +PUBLIC int AhlBindingInit() +{ + int err = 0; + + memset(&g_AHLCtx,0,sizeof(g_AHLCtx)); + + // Register exit function + atexit(AhlBindingTerm); + + //Create AGL Events + err=CreateEvents(); + if(err) + { + //Error messages already reported inside CreateEvents + return err; + } + + // Parse high-level binding JSON configuration file (will build device lists) + err = ParseHLBConfig(); + if(err) + { + //Error messages already reported inside ParseHLBConfig + return err; + } + +#ifndef AHL_DISCONNECT_POLICY + // Policy initialization + err = Policy_Init(); + if(err == AHL_POLICY_REJECT) + { + //Error messages already reported inside PolicyInit + return err; + } + + // for all audio Roles + GHashTableIter iter; + gpointer key, value; + + g_hash_table_iter_init (&iter, g_AHLCtx.policyCtx.pRoleInfo); + while (g_hash_table_iter_next (&iter, &key, &value)) + { + RoleInfoT * pRoleInfo = (RoleInfoT*)value; + if (pRoleInfo->pSourceEndpoints){ + // for all source endpoints + for (int j = 0; j < pRoleInfo->pSourceEndpoints->len; j++) { + EndpointInfoT * pCurEndpointInfo = g_ptr_array_index(pRoleInfo->pSourceEndpoints,j); + g_assert_nonnull(pCurEndpointInfo); + json_object *pPolicyEndpointJ = NULL; + err = PolicyEndpointStructToJSON(pCurEndpointInfo, &pPolicyEndpointJ); + if (err == AHL_POLICY_UTIL_FAIL) + { + AFB_ERROR("Unable to Create Endpoint Json object error:%s ",wrap_json_get_error_string(err)); + return err; + } + else + { + err = Policy_Endpoint_Init(pPolicyEndpointJ); + if (err == AHL_POLICY_REJECT) { + AFB_ERROR("Policy endpoint properties initalization failed for endpoint_id :%d type:%d",pCurEndpointInfo->endpointID, pCurEndpointInfo->type); + } + //free pPolicyEndpointJ + json_object_put(pPolicyEndpointJ); + } + } + } + if (pRoleInfo->pSinkEndpoints){ + // for all sink endpoints + for (int j = 0; j < pRoleInfo->pSinkEndpoints->len; j++) { + EndpointInfoT * pCurEndpointInfo = g_ptr_array_index(pRoleInfo->pSinkEndpoints,j); + g_assert_nonnull(pCurEndpointInfo); + json_object *pPolicyEndpointJ = NULL; + err = PolicyEndpointStructToJSON(pCurEndpointInfo, &pPolicyEndpointJ); + if (err == AHL_POLICY_UTIL_FAIL) + { + AFB_ERROR("Unable to Create Endpoint Json object error:%s ",wrap_json_get_error_string(err)); + return err; + } + else + { + err = Policy_Endpoint_Init(pPolicyEndpointJ); + if (err== AHL_POLICY_REJECT) { + AFB_ERROR("Policy endpoint properties initalization failed for endpoint_id :%d type:%d",pCurEndpointInfo->endpointID, pCurEndpointInfo->type); + } + //free pPolicyEndpointJ + json_object_put(pPolicyEndpointJ); + } + + } + } + } +#endif + + // Initialize list of active streams + g_AHLCtx.policyCtx.pStreams = g_hash_table_new(g_int_hash, g_int_equal); + if(g_AHLCtx.policyCtx.pStreams == NULL) + { + AFB_ERROR("Unable to create Active Stream List"); + return err; + } + + // TODO: Use AGL persistence framework to retrieve and set initial volumes/properties + + AFB_DEBUG("Audio high-level Binding success"); + return err; +} + +PUBLIC void AhlOnEvent(const char *evtname, json_object *eventJ) +{ + AFB_DEBUG("AHL received event %s", evtname); + + // TODO: Handle event from the policy to update internal information (currently not possible since within the same binding) + +#ifndef AHL_DISCONNECT_POLICY + // Temp: currently forward to policy to handle events (they will be received directly when disconnected into separate binding) + Policy_OnEvent(evtname, eventJ); +#endif +} + +PUBLIC void audiohlapi_get_sources(struct afb_req req) +{ + json_object *devicesJ = NULL; + json_object *deviceJ = NULL; + json_object *queryJ = NULL; + char * audioRole = NULL; + + queryJ = afb_req_json(req); + int err = wrap_json_unpack(queryJ, "{s:s}", "audio_role", &audioRole); + if (err) { + afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ)); + return; + } + + AFB_DEBUG("Filtering devices according to specified audio role=%s", audioRole); + + RoleInfoT * pRole = GetRole(audioRole); + if ( pRole == NULL ) + { + afb_req_fail_f(req, "Invalid arguments", "Requested audio role does not exist in current configuration -> %s", json_object_get_string(queryJ)); + return; + } + else + { + devicesJ = json_object_new_array(); + GPtrArray * pDeviceArray = pRole->pSourceEndpoints; + if (pDeviceArray) { + int iNumberDevices = pDeviceArray->len; + for ( int j = 0 ; j < iNumberDevices; j++) + { + EndpointInfoT * pEndpointInfo = g_ptr_array_index(pDeviceArray,j); + if (pEndpointInfo) { + EndpointInfoStructToJSON(&deviceJ, pEndpointInfo); + json_object_array_add(devicesJ, deviceJ); + } + } + } + } + + afb_req_success(req, devicesJ, "List of sources"); +} + +PUBLIC void audiohlapi_get_sinks(struct afb_req req) +{ + json_object *devicesJ = NULL; + json_object *deviceJ = NULL; + json_object *queryJ = NULL; + char * audioRole = NULL; + + queryJ = afb_req_json(req); + int err = wrap_json_unpack(queryJ, "{s:s}", "audio_role", &audioRole); + if (err) { + afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ)); + return; + } + + AFB_DEBUG("Filtering devices according to specified audio role=%s", audioRole); + + RoleInfoT * pRole = GetRole(audioRole); + if ( pRole == NULL ) + { + afb_req_fail_f(req, "Invalid arguments", "Requested audio role does not exist in current configuration -> %s", json_object_get_string(queryJ)); + return; + } + else + { + devicesJ = json_object_new_array(); + GPtrArray * pDeviceArray = pRole->pSinkEndpoints; + if (pDeviceArray) { + int iNumberDevices = pDeviceArray->len; + for ( int j = 0 ; j < iNumberDevices; j++) + { + EndpointInfoT * pEndpointInfo = g_ptr_array_index(pDeviceArray,j); + EndpointInfoStructToJSON(&deviceJ, pEndpointInfo); + json_object_array_add(devicesJ, deviceJ); + } + } + } + + afb_req_success(req, devicesJ, "List of sinks"); +} + +PUBLIC void audiohlapi_stream_open(struct afb_req req) +{ + json_object *streamInfoJ = NULL; + StreamInfoT * pStreamInfo = NULL; + json_object *queryJ = NULL; + char * audioRole = NULL; + char * endpointTypeStr = NULL; + EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE; + endpointID_t endpointID = AHL_UNDEFINED; + EndpointInfoT * pEndpointInfo = NULL; + EndpointSelectionModeT endpointSelMode = ENDPOINTSELMODEMAXVALUE; + + queryJ = afb_req_json(req); + int err = wrap_json_unpack(queryJ, "{s:s,s:s,s?i}", "audio_role", &audioRole, "endpoint_type", &endpointTypeStr, "endpoint_id", &endpointID); + if (err) { + afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ)); + return; + } + AFB_DEBUG("Parsed input arguments = audio_role:%s endpoint_type:%s endpoint_id:%d", audioRole,endpointTypeStr,endpointID); + endpointType = EndpointTypeToEnum(endpointTypeStr); + + // Check if there is already an existing context for this client + AHLClientCtxT * pClientCtx = afb_req_context_get(req); // Retrieve client-specific data structure + if (pClientCtx == NULL) + { + pClientCtx = AllocateClientContext(); + afb_req_context_set(req, pClientCtx, TerminateClientContext); + } + + RoleInfoT * pRole = GetRole(audioRole); + if ( pRole == NULL ) + { + afb_req_fail_f(req, "Invalid audio role", "Audio role was not found in configuration -> %s",audioRole); + return; + } + + GPtrArray * pDeviceArray = NULL; + if (endpointType == ENDPOINTTYPE_SOURCE){ + pDeviceArray = pRole->pSourceEndpoints; + } + else{ + pDeviceArray = pRole->pSinkEndpoints; + } + if (pDeviceArray == NULL || pDeviceArray->len == 0) { + afb_req_fail_f(req, "No available devices", "No available devices for role:%s and device type:%s",audioRole,endpointTypeStr); + return; + } + + if (endpointID == AHL_UNDEFINED) + { + // Assign a device based on configuration priority (first in the list for requested role and endpoint type) + pEndpointInfo = g_ptr_array_index(pDeviceArray,0); + endpointSelMode = ENDPOINTSELMODE_AUTO; + + } + else{ + endpointSelMode = ENDPOINTSELMODE_MANUAL; + // Find specified endpoint ID in list of devices + int iNumberDevices = pDeviceArray->len; + for ( int j = 0 ; j < iNumberDevices; j++) + { + pEndpointInfo = g_ptr_array_index(pDeviceArray,j); + if (pEndpointInfo && pEndpointInfo->endpointID == endpointID) { + break; + } + pEndpointInfo = NULL; + } + + } + + if (pEndpointInfo == NULL) { + afb_req_fail_f(req, "Endpoint not available", "Specified endpoint not available for role:%s and device type:%d endpoint id %d",audioRole,endpointType,endpointID); + return; + } + + pStreamInfo = (StreamInfoT*) malloc(sizeof(StreamInfoT)); + memset(pStreamInfo,0,sizeof(StreamInfoT)); + + // Create stream + pStreamInfo->streamID = CreateNewStreamID(); // create new ID + pStreamInfo->streamState = STREAM_STATE_IDLE; + pStreamInfo->streamMute = STREAM_UNMUTED; + pStreamInfo->pEndpointInfo = pEndpointInfo; + pStreamInfo->endpointSelMode = endpointSelMode; + // Directly from role config for now, but could be programmatically overriden in the future + pStreamInfo->pRoleName = pRole->pRoleName; + pStreamInfo->iPriority = pRole->iPriority; + pStreamInfo->eInterruptBehavior = pRole->eInterruptBehavior; + +#ifndef AHL_DISCONNECT_POLICY + // Call policy to verify whether creating a new audio stream is allowed in current context and possibly take other actions + json_object *pPolicyStreamJ = NULL; + err = PolicyStreamStructToJSON(pStreamInfo, &pPolicyStreamJ); + if (err == AHL_POLICY_UTIL_FAIL) + { + afb_req_fail(req, "Audio policy violation", "Unable to get JSON object for Policy_OpenStream"); + return; + } + + int policyAllowed = Policy_OpenStream(pPolicyStreamJ); + if (policyAllowed == AHL_POLICY_REJECT) + { + afb_req_fail(req, "Audio policy violation", "Open stream not allowed in current context"); + return; + } +#endif + + char streamEventName[128]; + snprintf(streamEventName,128,"ahl_streamstate_%d",pStreamInfo->streamID); + + pStreamInfo->streamStateEvent = afb_daemon_make_event(streamEventName); + err = !afb_event_is_valid(pStreamInfo->streamStateEvent); + if (err) { + afb_req_fail(req, "Stream event creation failure", "Could not create stream specific state change event"); + return; + } + + err = afb_req_subscribe(req,pStreamInfo->streamStateEvent); + if (err) { + afb_req_fail(req, "Stream event subscription failure", "Could not subscribe to stream specific state change event"); + return; + } + + // Add to client context stream ID access rights + g_array_append_val(pClientCtx->pStreamAccessList, pStreamInfo->streamID); + + // Push stream on active stream list + if (g_AHLCtx.policyCtx.pStreams) + g_hash_table_insert( g_AHLCtx.policyCtx.pStreams, GINT_TO_POINTER(&pStreamInfo->streamID), pStreamInfo ); + + StreamInfoStructToJSON(&streamInfoJ,pStreamInfo); + + afb_req_success(req, streamInfoJ, "Stream info structure"); +} + +PUBLIC void audiohlapi_stream_close(struct afb_req req) +{ + json_object *queryJ = NULL; + streamID_t streamID = AHL_UNDEFINED; + + queryJ = afb_req_json(req); + int err = wrap_json_unpack(queryJ, "{s:i}", "stream_id", &streamID); + if (err) { + afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ)); + return; + } + AFB_DEBUG("Parsed input arguments = stream_id:%d", streamID); + + + StreamInfoT * pStreamInfo = GetStream(streamID); + if (pStreamInfo == NULL) { + afb_req_fail_f(req, "Stream not found", "Specified stream not currently active stream_id -> %d",streamID); + return; + } + + // Check if there is already an existing context for this client + AHLClientCtxT * pClientCtx = afb_req_context_get(req); // Retrieve client-specific data structure + if (pClientCtx == NULL) + { + afb_req_fail(req, "Bad state", "No client context associated with the request (is there an opened stream by this client?)"); + return; + } + + // Verify that this client can control the stream + int iStreamAccessControl = CheckStreamAccessControl( pClientCtx, streamID ); + if (iStreamAccessControl == AHL_ACCESS_CONTROL_DENIED) + { + afb_req_fail(req, "Access control denied", "Close stream not allowed in current client context"); + return; + } + +#ifndef AHL_DISCONNECT_POLICY + json_object *pPolicyStreamJ = NULL; + err = PolicyStreamStructToJSON(pStreamInfo, &pPolicyStreamJ); + if (err == AHL_POLICY_UTIL_FAIL) + { + afb_req_fail(req, "Audio policy violation", "Unable to get JSON object for Policy_CloseStream"); + return; + } + // Call policy to verify whether creating a new audio stream is allowed in current context and possibly take other actions + int policyAllowed = Policy_CloseStream(pPolicyStreamJ); + if (policyAllowed == AHL_POLICY_REJECT) + { + afb_req_fail(req, "Audio policy violation", "Close stream not allowed in current context"); + return; + } +#endif + + // Unsubscribe client from stream events + char streamEventName[128]; + snprintf(streamEventName,128,"ahl_streamstate_%d",streamID); + int iValid = afb_event_is_valid(pStreamInfo->streamStateEvent); + if (iValid) { + err = afb_req_unsubscribe(req,pStreamInfo->streamStateEvent); + if (err) { + afb_req_fail(req, "Stream event subscription failure", "Could not unsubscribe to stream specific state change event"); + return; + } + } + + // Remove from stream list (if present) + if (g_AHLCtx.policyCtx.pStreams) + g_hash_table_remove(g_AHLCtx.policyCtx.pStreams,GINT_TO_POINTER(&pStreamInfo->streamID)); + free(pStreamInfo); + pStreamInfo = NULL; + + // Find index for cases where there are multiple streams per client + // Remove from client context stream ID and endpoint ID access rights + if (pClientCtx->pStreamAccessList) { + for (int i = 0; i < pClientCtx->pStreamAccessList->len ; i++) { + streamID_t iID = g_array_index(pClientCtx->pStreamAccessList,streamID_t,i); + if (iID == streamID) { + g_array_remove_index(pClientCtx->pStreamAccessList, i); + } + } + + if (pClientCtx->pStreamAccessList->len == 0) { + // If no more streams/endpoints owner, clear session + afb_req_context_clear(req); + } + } + + afb_req_success(req, NULL, "Stream close completed"); +} + + PUBLIC void audiohlapi_set_stream_state(struct afb_req req) + { + json_object *queryJ = NULL; + streamID_t streamID = AHL_UNDEFINED; + char * streamStateStr = NULL; + + queryJ = afb_req_json(req); + int err = wrap_json_unpack(queryJ, "{s:i,s:s}", "stream_id", &streamID,"state",&streamStateStr); + if (err) { + afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ)); + return; + } + AFB_DEBUG("Parsed input arguments = stream_id:%d, state:%s", streamID,streamStateStr); + + StreamInfoT * pStreamInfo = GetStream(streamID); + if (pStreamInfo == NULL) { + afb_req_fail_f(req, "Stream not found", "Specified stream not found stream_id -> %d",streamID); + return; + } + + // Check if there is already an existing context for this client + AHLClientCtxT * pClientCtx = afb_req_context_get(req); // Retrieve client-specific data structure + if (pClientCtx == NULL) + { + afb_req_fail(req, "Bad state", "No client context associated with the request (is there an opened stream by this client?)"); + return; + } + + // Verify that this client can control the stream + int iStreamAccessControl = CheckStreamAccessControl( pClientCtx, streamID ); + if (iStreamAccessControl == AHL_ACCESS_CONTROL_DENIED) + { + afb_req_fail(req, "Access control denied", "Set stream state not allowed in current client context"); + return; + } + + StreamStateT streamState = StreamStateToEnum(streamStateStr); +#ifndef AHL_DISCONNECT_POLICY + json_object *pPolicyStreamJ = NULL; + err = PolicyStreamStructToJSON(pStreamInfo, &pPolicyStreamJ); + if (err == AHL_POLICY_UTIL_FAIL) + { + afb_req_fail(req, "Audio policy violation", "Unable to get JSON object for Policy_SetStreamState"); + return; + } + + json_object *paramJ= json_object_new_int(streamState); + json_object_object_add(pPolicyStreamJ, "arg_stream_state", paramJ); + + int policyAllowed = Policy_SetStreamState(pPolicyStreamJ); + if (policyAllowed == AHL_POLICY_REJECT) + { + afb_req_fail(req, "Audio policy violation", "Change stream state not allowed in current context"); + return; + } +#else + // Simulate that policy returns target state (accepted) + pStreamInfo->streamState = streamState; +#endif + + afb_req_success(req, NULL, "Set stream state"); + } + + PUBLIC void audiohlapi_set_stream_mute(struct afb_req req) + { + json_object *queryJ = NULL; + streamID_t streamID = AHL_UNDEFINED; + char * pMuteStr = NULL; + + queryJ = afb_req_json(req); + int err = wrap_json_unpack(queryJ, "{s:i,s:s}", "stream_id", &streamID,"mute",&pMuteStr); + if (err) { + afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ)); + return; + } + AFB_DEBUG("Parsed input arguments = stream_id:%d, mute:%s", streamID,pMuteStr); + + StreamInfoT * pStreamInfo = GetStream(streamID); + if (pStreamInfo == NULL) { + afb_req_fail_f(req, "Stream not found", "Specified stream not currently active stream_id -> %d",streamID); + return; + } + + // Check if there is already an existing context for this client + AHLClientCtxT * pClientCtx = afb_req_context_get(req); // Retrieve client-specific data structure + if (pClientCtx == NULL) + { + afb_req_fail(req, "Bad state", "No client context associated with the request (is there an opened stream by this client?)"); + return; + } + + // Verify that this client can control the stream + int iStreamAccessControl = CheckStreamAccessControl( pClientCtx, streamID ); + if (iStreamAccessControl == AHL_ACCESS_CONTROL_DENIED) + { + afb_req_fail(req, "Access control denied", "Set stream mute state not allowed in current client context"); + return; + } + + + StreamMuteT muteState = StreamMuteToEnum(pMuteStr); +#ifndef AHL_DISCONNECT_POLICY + json_object *pPolicyStreamJ = NULL; + err = PolicyStreamStructToJSON(pStreamInfo, &pPolicyStreamJ); + if (err == AHL_POLICY_UTIL_FAIL) + { + afb_req_fail(req, "Audio policy violation", "Unable to get JSON object for Policy_SetStreamMute"); + return; + } + + json_object *paramJ= json_object_new_int(muteState); + json_object_object_add(pPolicyStreamJ, "mute_state", paramJ); + + int policyAllowed = Policy_SetStreamMute(pPolicyStreamJ); + if (policyAllowed == AHL_POLICY_REJECT) + { + afb_req_fail(req, "Audio policy violation", "Mute stream not allowed in current context"); + return; + } +#else + // Simulate that policy returns target state (accepted) + pStreamInfo->streamMute = muteState; +#endif + + afb_req_success(req, NULL, "Set stream mute completed"); + } + + PUBLIC void audiohlapi_get_stream_info(struct afb_req req) + { + json_object *queryJ = NULL; + streamID_t streamID = AHL_UNDEFINED; + json_object * streamInfoJ = NULL; + + queryJ = afb_req_json(req); + int err = wrap_json_unpack(queryJ, "{s:i}", "stream_id", &streamID); + if (err) { + afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ)); + return; + } + AFB_DEBUG("Parsed input arguments = stream_id:%d", streamID); + + StreamInfoT * pStreamInfo = GetStream(streamID); + if (pStreamInfo == NULL) { + afb_req_fail_f(req, "Stream not found", "Specified stream not currently active stream_id -> %d",streamID); + return; + } + + StreamInfoStructToJSON(&streamInfoJ,pStreamInfo); + + afb_req_success(req, streamInfoJ, "Get stream info completed"); + } + +PUBLIC void audiohlapi_set_volume(struct afb_req req) +{ + json_object *queryJ = NULL; + endpointID_t endpointID = AHL_UNDEFINED; + char * pEndpointTypeStr = NULL; + EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE; + char * volumeStr = NULL; + + queryJ = afb_req_json(req); + int err = wrap_json_unpack(queryJ, "{s:s,s:i,s:s}", "endpoint_type", &pEndpointTypeStr,"endpoint_id",&endpointID,"volume",&volumeStr); + if (err) { + afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ)); + return; + } + AFB_DEBUG("Parsed input arguments = endpoint_type:%s endpoint_id:%d volume:%s", pEndpointTypeStr,endpointID,volumeStr); + endpointType = EndpointTypeToEnum(pEndpointTypeStr); + + EndpointInfoT * pEndpointInfo = GetEndpointInfo(endpointID,endpointType); + if (pEndpointInfo == NULL) + { + afb_req_fail_f(req, "Endpoint not found", "Endpoint information not found for id:%d type%d",endpointID,endpointType); + return; + } + +#ifndef AHL_DISCONNECT_POLICY + json_object *pPolicyEndpointJ = NULL; + err = PolicyEndpointStructToJSON(pEndpointInfo, &pPolicyEndpointJ); + if (err == AHL_POLICY_UTIL_FAIL) + { + afb_req_fail(req, "Audio policy violation", "Unable to get JSON object for Policy_SetVolume"); + return; + } + + json_object *paramJ= json_object_new_string(volumeStr); + json_object_object_add(pPolicyEndpointJ, "arg_volume", paramJ); + + int policyAllowed = Policy_SetVolume(pPolicyEndpointJ); + if (!policyAllowed) + { + afb_req_fail(req, "Audio policy violation", "Set volume not allowed in current context"); + return; + } +#else + // Simulate that policy returns target state (accepted) + pEndpointInfo->iVolume = atoi(volumeStr); +#endif + + afb_req_success(req, NULL, "Set volume completed"); +} + +PUBLIC void audiohlapi_get_volume(struct afb_req req) +{ + json_object *queryJ = NULL; + endpointID_t endpointID = AHL_UNDEFINED; + char * pEndpointTypeStr = NULL; + EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE; + json_object * volumeJ = NULL; + + queryJ = afb_req_json(req); + int err = wrap_json_unpack(queryJ, "{s:s,s:i}", "endpoint_type", &pEndpointTypeStr,"endpoint_id",&endpointID); + if (err) { + afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ)); + return; + } + AFB_DEBUG("Parsed input arguments = endpoint_type:%s endpoint_id:%d", pEndpointTypeStr,endpointID); + endpointType = EndpointTypeToEnum(pEndpointTypeStr); + + EndpointInfoT * pEndpointInfo = GetEndpointInfo(endpointID,endpointType); + if (pEndpointInfo == NULL) + { + afb_req_fail_f(req, "Endpoint not found", "Endpoint information not found for id:%d type%d",endpointID,endpointType); + return; + } + + volumeJ = json_object_new_int(pEndpointInfo->iVolume); + + afb_req_success(req, volumeJ, "Retrieved volume value"); +} + +// Properties +PUBLIC void audiohlapi_get_endpoint_info(struct afb_req req) +{ + json_object *queryJ = NULL; + endpointID_t endpointID = AHL_UNDEFINED; + char * pEndpointTypeStr = NULL; + EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE; + + queryJ = afb_req_json(req); + int err = wrap_json_unpack(queryJ, "{s:s,s:i}", "endpoint_type", &pEndpointTypeStr,"endpoint_id",&endpointID); + if (err) { + afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ)); + return; + } + AFB_DEBUG("Parsed input arguments = endpoint_type:%s endpoint_id:%d", pEndpointTypeStr,endpointID); + endpointType = EndpointTypeToEnum(pEndpointTypeStr); + + EndpointInfoT * pEndpointInfo = GetEndpointInfo(endpointID,endpointType); + if (pEndpointInfo == NULL) + { + afb_req_fail_f(req, "Endpoint not found", "Endpoint information not found for id:%d type%d",endpointID,endpointType); + return; + } + + json_object *endpointInfoJ = NULL; + EndpointInfoStructToJSON(&endpointInfoJ,pEndpointInfo); + + afb_req_success(req, endpointInfoJ, "Retrieved endpoint information and properties"); +} + +PUBLIC void audiohlapi_set_property(struct afb_req req) +{ + json_object *queryJ = NULL; + endpointID_t endpointID = AHL_UNDEFINED; + char * pEndpointTypeStr = NULL; + EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE; + char * propertyName = NULL; + json_object * propValueJ = NULL; + + queryJ = afb_req_json(req); + int err = wrap_json_unpack(queryJ, "{s:s,s:i,s:s,s:o}", "endpoint_type", &pEndpointTypeStr,"endpoint_id",&endpointID,"property_name",&propertyName,"value",&propValueJ); + if (err) { + afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ)); + return; + } + AFB_DEBUG("Parsed input arguments = endpoint_type:%s endpoint_id:%d property_name:%s", pEndpointTypeStr,endpointID,propertyName); + endpointType = EndpointTypeToEnum(pEndpointTypeStr); + + EndpointInfoT * pEndpointInfo = GetEndpointInfo(endpointID,endpointType); + if (pEndpointInfo == NULL) + { + afb_req_fail_f(req, "Endpoint not found", "Endpoint information not found for id:%d type%d",endpointID,endpointType); + return; + } + +#ifndef AHL_DISCONNECT_POLICY + json_object *pPolicyEndpointJ = NULL; + err = PolicyEndpointStructToJSON(pEndpointInfo, &pPolicyEndpointJ); + if (err == AHL_POLICY_UTIL_FAIL) + { + afb_req_fail(req, "Audio policy violation", "Unable to get JSON object for Policy_SetVolume"); + return; + } + + json_object *paramJ= json_object_new_string(propertyName); + json_object_object_add(pPolicyEndpointJ, "arg_property_name", paramJ); + json_object_object_add(pPolicyEndpointJ, "arg_property_value", propValueJ); + + // Call policy to allow custom policy actions in current context + int policyAllowed = Policy_SetProperty(pPolicyEndpointJ); + if (!policyAllowed) + { + afb_req_fail(req, "Audio policy violation", "Set endpoint property not allowed in current context"); + return; + } +#else + // Simulate that policy returns target state (accepted) + if (pEndpointInfo->pPropTable) + g_hash_table_insert(pEndpointInfo->pPropTable, propertyName, propValueJ); +#endif + + //afb_event_push(g_AHLCtx.policyCtx.propertyEvent,queryJ); + + afb_req_success(req, NULL, "Set property completed"); +} + +PUBLIC void audiohlapi_get_property(struct afb_req req) +{ + json_object *queryJ = NULL; + endpointID_t endpointID = AHL_UNDEFINED; + char * pEndpointTypeStr = NULL; + EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE; + char * propertyName = NULL; + + queryJ = afb_req_json(req); + int err = wrap_json_unpack(queryJ, "{s:s,s:i,s:s}", "endpoint_type", &pEndpointTypeStr,"endpoint_id",&endpointID,"property_name",&propertyName); + if (err) { + afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ)); + return; + } + AFB_DEBUG("Parsed input arguments = endpoint_type:%s endpoint_id:%d property_name:%s", pEndpointTypeStr,endpointID,propertyName); + endpointType = EndpointTypeToEnum(pEndpointTypeStr); + + EndpointInfoT * pEndpointInfo = GetEndpointInfo(endpointID,endpointType); + if (pEndpointInfo == NULL) + { + afb_req_fail_f(req, "Endpoint not found", "Endpoint information not found for id:%d type%d",endpointID,endpointType); + return; + } + + // Retrieve cached property value + json_object * propertyValJ = (json_object *)g_hash_table_lookup(pEndpointInfo->pPropTable,propertyName); + if (propertyValJ == NULL) { + afb_req_fail_f(req, "Property not found", "Property information not found: %s",propertyName); + return; + } + + json_object_get(propertyValJ); // Increase ref count so that framework does not free our JSON object + //AFB_WARNING("properties %s", json_object_get_string(propertyValJ)); + //json_object_get(propertyValJ); // Increase ref count so that framework does not free our JSON object + + afb_req_success(req, propertyValJ, "Retrieved property value"); +} + +// Audio related events + +PUBLIC void audiohlapi_get_list_actions(struct afb_req req) +{ + json_object *queryJ = NULL; + char * audioRole = NULL; + json_object * roleActionsJ = NULL; + + queryJ = afb_req_json(req); + int err = wrap_json_unpack(queryJ, "{s:s}", "audio_role",&audioRole); + if (err) { + afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ)); + return; + } + AFB_DEBUG("Parsed input arguments = audio_role:%s",audioRole); + + // Build and return list of actions for specific audio role + RoleInfoT * pRole = GetRole(audioRole); + if ( pRole == NULL ) + { + afb_req_fail_f(req, "Invalid audio role", "Audio role was not found in configuration -> %s",audioRole); + return; + } + + roleActionsJ = json_object_new_array(); + if (pRole->pActionList) { + int iNumberActions = pRole->pActionList->len; + for ( int i = 0 ; i < iNumberActions; i++) + { + char * pActionName = g_ptr_array_index(pRole->pActionList,i); + json_object * actionJ = json_object_new_string(pActionName); + json_object_array_add(roleActionsJ, actionJ); + } + } + + afb_req_success(req, roleActionsJ, "Retrieved action list for audio role"); +} + +PUBLIC void audiohlapi_post_action(struct afb_req req) +{ + json_object *queryJ = NULL; + char * actionName = NULL; + char * audioRole = NULL; + char * mediaName = NULL; + json_object *actionContext = NULL; + + queryJ = afb_req_json(req); + int err = wrap_json_unpack(queryJ, "{s:s,s:s,s?s,s?o}", "action_name", &actionName,"audio_role",&audioRole,"media_name",&mediaName,"action_context",&actionContext); + if (err) { + afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ)); + return; + } + AFB_DEBUG("Parsed input arguments = action_name:%s audio_role:%s", actionName,audioRole); + + // Verify if known action for audio role + RoleInfoT * pRole = GetRole(audioRole); + if ( pRole == NULL ) + { + afb_req_fail_f(req, "Invalid audio role", "Audio role was not found in configuration -> %s",audioRole); + return; + } + + // Check to find specific action + int iActionFound = 0; + if (pRole->pActionList) { + int iNumberActions = pRole->pActionList->len; + char * pTargetActionName = NULL; + for ( int i = 0 ; i < iNumberActions; i++) + { + pTargetActionName = g_ptr_array_index(pRole->pActionList,i); + if ( strcasecmp(pTargetActionName,actionName)==0) { + iActionFound = 1; + break; + } + } + } + + if (!iActionFound) { + afb_req_fail_f(req, "Event not found for audio role", "Event -> %s not found for role:%s",actionName,audioRole); + return; + } + +#ifndef AHL_DISCONNECT_POLICY + // Call policy to allow custom policy actions in current context (e.g. cancel playback) + int policyAllowed = Policy_PostAction(queryJ); + if (!policyAllowed) + { + afb_req_fail(req, "Audio policy violation", "Post sound action not allowed in current context"); + return; + } +#endif + + //afb_event_push(g_AHLCtx.policyCtx.postEvent,queryJ); + + afb_req_success(req, NULL, "Posted sound action"); + } + + +// Monitoring +PUBLIC void audiohlapi_subscribe(struct afb_req req) +{ + json_object *queryJ = NULL; + json_object * eventArrayJ = NULL; + + queryJ = afb_req_json(req); + int err = wrap_json_unpack(queryJ, "{s:o}", "events", &eventArrayJ); + if (err) { + afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ)); + return; + } + + int iNumEvents = json_object_array_length(eventArrayJ); + for (int i = 0; i < iNumEvents; i++) + { + char * pEventName = NULL; + json_object * jEvent = json_object_array_get_idx(eventArrayJ,i); + pEventName = (char *)json_object_get_string(jEvent); + if(pEventName == NULL) { + afb_req_fail(req, "failed", "Invalid event"); + return; + } + else if(!strcasecmp(pEventName, AHL_ENDPOINT_PROPERTY_EVENT)) { + afb_req_subscribe(req, g_AHLCtx.policyCtx.propertyEvent); + AFB_DEBUG("Client subscribed to endpoint property events"); + } + else if(!strcasecmp(pEventName, AHL_ENDPOINT_VOLUME_EVENT)) { + afb_req_subscribe(req, g_AHLCtx.policyCtx.volumeEvent); + AFB_DEBUG("Client subscribed to endpoint volume events"); + } + else if(!strcasecmp(pEventName, AHL_POST_ACTION_EVENT)) { + afb_req_subscribe(req, g_AHLCtx.policyCtx.postActionEvent); + AFB_DEBUG("Client subscribed to post event calls events"); + } + else { + afb_req_fail(req, "failed", "Invalid event"); + return; + } + } + + afb_req_success(req, NULL, "Subscribe to events finished"); +} + +PUBLIC void audiohlapi_unsubscribe(struct afb_req req) +{ + json_object *queryJ = NULL; + json_object * eventArrayJ = NULL; + + queryJ = afb_req_json(req); + int err = wrap_json_unpack(queryJ, "{s:o}", "events", &eventArrayJ); + if (err) { + afb_req_fail_f(req, "Invalid arguments", "Args not a valid json object query=%s", json_object_get_string(queryJ)); + return; + } + + int iNumEvents = json_object_array_length(eventArrayJ); + for (int i = 0; i < iNumEvents; i++) + { + char * pEventName = NULL; + json_object * jEvent = json_object_array_get_idx(eventArrayJ,i); + pEventName = (char *)json_object_get_string(jEvent); + if(pEventName == NULL) { + afb_req_fail(req, "failed", "Invalid event"); + return; + } + else if(!strcasecmp(pEventName, AHL_ENDPOINT_PROPERTY_EVENT)) { + afb_req_unsubscribe(req, g_AHLCtx.policyCtx.propertyEvent); + AFB_DEBUG("Client unsubscribed to endpoint property events"); + } + else if(!strcasecmp(pEventName, AHL_ENDPOINT_VOLUME_EVENT)) { + afb_req_unsubscribe(req, g_AHLCtx.policyCtx.volumeEvent); + AFB_DEBUG("Client unsubscribed to endpoint volume events"); + } + else if(!strcasecmp(pEventName, AHL_POST_ACTION_EVENT)) { + afb_req_unsubscribe(req, g_AHLCtx.policyCtx.postActionEvent); + AFB_DEBUG("Client unsubscribed to post event calls events"); + } + else { + afb_req_fail(req, "failed", "Invalid event"); + return; + } + } + + afb_req_success(req, NULL, "Unsubscribe to events finished"); +} + +// Since the policy is currently in the same binding, it cannot raise events on its own +// This is a first step toward isolation, when policy is migrated in its own binding it can simply raise AGL events +// This binding will register for these policy events and will execute the code below upon event reception +PUBLIC void audiohlapi_raise_event(json_object * pEventDataJ) +{ + char * pEventName = NULL; + + int err = wrap_json_unpack(pEventDataJ,"{s:s}","event_name", &pEventName); + if(err) + { + AFB_ERROR("Unable to retrieve event name"); + return; + } + + if(strcasecmp(pEventName, AHL_ENDPOINT_INIT_EVENT)==0) { + char * pAudioRole = NULL; + endpointID_t endpointID = AHL_UNDEFINED; + EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE; + int err = wrap_json_unpack(pEventDataJ,"{s:i,s:i,s:s}", + "endpoint_id", &endpointID, + "endpoint_type", &endpointType, + "audio_role", &pAudioRole); + if(err) + { + AFB_ERROR("Unable to unpack property init event"); + return; + } + + RoleInfoT * pRole = GetRole(pAudioRole); + if ( pRole == NULL ){ + AFB_ERROR("Requested audio role does not exist in current configuration -> %s", pAudioRole); + return; + } + + EndpointInfoT * pEndpointInfo = InitEndpointInfo(); + g_assert_nonnull(pEndpointInfo); + PolicyCtxJSONToEndpoint(pEventDataJ,pEndpointInfo); + + err = ReplaceEndpointInfoWithRole(endpointID,endpointType,pRole,pEndpointInfo); + if(err == AHL_FAIL) + { + AFB_ERROR("Can't update EndpointInfo aborting"); + return; + } + + // Remove event name from object + // json_object_object_del(pEventDataJ,"event_name"); + //afb_event_push(g_AHLCtx.policyCtx.propertyEvent,pEventDataJ); // Not broadcasted to application at this time + } + else if(strcasecmp(pEventName, AHL_ENDPOINT_PROPERTY_EVENT)==0) { + char * pAudioRole = NULL; + char * pPropertyName = NULL; + endpointID_t endpointID = AHL_UNDEFINED; + EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE; + json_object * propValueJ = NULL; + int err = wrap_json_unpack(pEventDataJ,"{s:i,s:i,s:s,s:o,s:s}", + "endpoint_id", &endpointID, + "endpoint_type", &endpointType, + "property_name", &pPropertyName, + "value",&propValueJ, + "audio_role", &pAudioRole); + if(err) + { + AFB_ERROR("Unable to unpack property event"); + return; + } + RoleInfoT * pRole = GetRole(pAudioRole); + if ( pRole == NULL ){ + AFB_ERROR("Requested audio role does not exist in current configuration -> %s", pAudioRole); + return; + } + EndpointInfoT * pEndpointInfo = GetEndpointInfoWithRole(endpointID,endpointType,pRole); + // update property value + if (pEndpointInfo->pPropTable) + { + json_type jType = json_object_get_type(propValueJ); + switch (jType) { + case json_type_double: + Add_Endpoint_Property_Double(pEndpointInfo,pPropertyName,json_object_get_double(propValueJ)); + break; + case json_type_int: + Add_Endpoint_Property_Int(pEndpointInfo,pPropertyName,json_object_get_int(propValueJ)); + break; + case json_type_string: + Add_Endpoint_Property_String(pEndpointInfo,pPropertyName,json_object_get_string(propValueJ)); + break; + default: + AFB_ERROR("Invalid property argument Property value not a valid json object query=%s", json_object_get_string(propValueJ)); + return ; + } + } + // Remove event name from object + json_object_object_del(pEventDataJ,"event_name"); + afb_event_push(g_AHLCtx.policyCtx.propertyEvent,pEventDataJ); + } + else if(strcasecmp(pEventName, AHL_ENDPOINT_VOLUME_EVENT)==0) { + char * pAudioRole = NULL; + endpointID_t endpointID = AHL_UNDEFINED; + EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE; + int iVolume = 0; + int err = wrap_json_unpack(pEventDataJ,"{s:i,s:i,s:i,s:s}", + "endpoint_id", &endpointID, + "endpoint_type", &endpointType, + "value",&iVolume, + "audio_role", &pAudioRole); + if(err) + { + AFB_ERROR("Unable to unpack volume event data"); + return; + } + RoleInfoT * pRole = GetRole(pAudioRole); + if ( pRole == NULL ){ + AFB_ERROR("Requested audio role does not exist in current configuration -> %s", pAudioRole); + return; + } + EndpointInfoT * pEndpointInfo = GetEndpointInfoWithRole(endpointID,endpointType,pRole); + // update volume value + pEndpointInfo->iVolume = iVolume; + // Remove event name from object + json_object_object_del(pEventDataJ,"event_name"); + afb_event_push(g_AHLCtx.policyCtx.volumeEvent,pEventDataJ); + } + else if(strcasecmp(pEventName, AHL_POST_ACTION_EVENT)==0) { + // Remove event name from object + json_object_object_del(pEventDataJ,"event_name"); + afb_event_push(g_AHLCtx.policyCtx.postActionEvent,pEventDataJ); + } + else if(strcasecmp(pEventName, AHL_STREAM_STATE_EVENT)==0) { + streamID_t streamID = AHL_UNDEFINED; + StreamEventT streamEvent = STREAM_EVENT_MAXVALUE; + int err = wrap_json_unpack(pEventDataJ,"{s:i,s:i}", + "stream_id", &streamID, + "state_event", &streamEvent); + if(err) + { + AFB_ERROR("Unable to unpack stream event data"); + return; + } + + StreamInfoT * pStreamInfo = GetStream(streamID); + if (pStreamInfo == NULL) { + AFB_ERROR("Specified stream not currently active stream_id -> %d",streamID); + return; + } + + // update streamstate value + switch (streamEvent) { + case STREAM_EVENT_START: + pStreamInfo->streamState = STREAM_STATE_RUNNING; + break; + case STREAM_EVENT_STOP: + pStreamInfo->streamState = STREAM_STATE_IDLE; + break; + case STREAM_EVENT_PAUSE: + pStreamInfo->streamState = STREAM_STATE_PAUSED; + break; + case STREAM_EVENT_RESUME: + pStreamInfo->streamState = STREAM_STATE_RUNNING; + break; + case STREAM_EVENT_MUTED: + pStreamInfo->streamMute = STREAM_MUTED; + break; + case STREAM_EVENT_UNMUTED: + pStreamInfo->streamMute = STREAM_UNMUTED; + break; + default: + AFB_ERROR("Unknown stream event"); + } + + // Remove event name from object + json_object_object_del(pEventDataJ,"event_name"); + AFB_ERROR("pEventDataJ=%s", json_object_get_string(pEventDataJ)); + afb_event_push(pStreamInfo->streamStateEvent,pEventDataJ); + } + else { + AFB_ERROR("Unknown event name"); + } +}
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