unleashed-firmware/applications/services/rpc/rpc_app.c

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#include "flipper.pb.h"
#include <core/record.h>
#include "rpc_i.h"
#include <furi.h>
#include <loader/loader.h>
#include "rpc_app.h"
#define TAG "RpcSystemApp"
struct RpcAppSystem {
RpcSession* session;
RpcAppSystemCallback app_callback;
void* app_context;
RpcAppSystemDataExchangeCallback data_exchange_callback;
void* data_exchange_context;
PB_Main* state_msg;
PB_Main* error_msg;
uint32_t last_id;
char* last_data;
};
#define RPC_SYSTEM_APP_TEMP_ARGS_SIZE 16
static void rpc_system_app_start_process(const PB_Main* request, void* context) {
furi_assert(request);
furi_assert(context);
furi_assert(request->which_content == PB_Main_app_start_request_tag);
RpcAppSystem* rpc_app = context;
RpcSession* session = rpc_app->session;
rpc_system_app_error_reset(rpc_app);
furi_assert(session);
char args_temp[RPC_SYSTEM_APP_TEMP_ARGS_SIZE];
furi_assert(!rpc_app->last_id);
furi_assert(!rpc_app->last_data);
FURI_LOG_D(TAG, "StartProcess: id %lu", request->command_id);
PB_CommandStatus result;
Loader* loader = furi_record_open(RECORD_LOADER);
const char* app_name = request->content.app_start_request.name;
if(app_name) {
const char* app_args = request->content.app_start_request.args;
if(app_args && strcmp(app_args, "RPC") == 0) {
// If app is being started in RPC mode - pass RPC context via args string
snprintf(args_temp, RPC_SYSTEM_APP_TEMP_ARGS_SIZE, "RPC %08lX", (uint32_t)rpc_app);
app_args = args_temp;
}
LoaderStatus status = loader_start(loader, app_name, app_args, NULL);
if(status == LoaderStatusErrorAppStarted) {
result = PB_CommandStatus_ERROR_APP_SYSTEM_LOCKED;
} else if(status == LoaderStatusErrorInternal) {
result = PB_CommandStatus_ERROR_APP_CANT_START;
} else if(status == LoaderStatusErrorUnknownApp) {
result = PB_CommandStatus_ERROR_INVALID_PARAMETERS;
} else if(status == LoaderStatusOk) {
result = PB_CommandStatus_OK;
} else {
furi_crash();
}
} else {
result = PB_CommandStatus_ERROR_INVALID_PARAMETERS;
}
furi_record_close(RECORD_LOADER);
FURI_LOG_D(TAG, "StartProcess: response id %lu, result %d", request->command_id, result);
rpc_send_and_release_empty(session, request->command_id, result);
}
static void rpc_system_app_lock_status_process(const PB_Main* request, void* context) {
furi_assert(request);
furi_assert(context);
furi_assert(request->which_content == PB_Main_app_lock_status_request_tag);
RpcAppSystem* rpc_app = context;
rpc_system_app_error_reset(rpc_app);
RpcSession* session = rpc_app->session;
furi_assert(session);
FURI_LOG_D(TAG, "LockStatus");
Loader* loader = furi_record_open(RECORD_LOADER);
PB_Main response = {
.has_next = false,
.command_status = PB_CommandStatus_OK,
.command_id = request->command_id,
.which_content = PB_Main_app_lock_status_response_tag,
};
response.content.app_lock_status_response.locked = loader_is_locked(loader);
furi_record_close(RECORD_LOADER);
FURI_LOG_D(TAG, "LockStatus: response");
rpc_send_and_release(session, &response);
pb_release(&PB_Main_msg, &response);
}
static void rpc_system_app_exit_request(const PB_Main* request, void* context) {
furi_assert(request);
furi_assert(context);
furi_assert(request->which_content == PB_Main_app_exit_request_tag);
RpcAppSystem* rpc_app = context;
rpc_system_app_error_reset(rpc_app);
RpcSession* session = rpc_app->session;
furi_assert(session);
PB_CommandStatus status;
if(rpc_app->app_callback) {
FURI_LOG_D(TAG, "ExitRequest: id %lu", request->command_id);
furi_assert(!rpc_app->last_id);
furi_assert(!rpc_app->last_data);
rpc_app->last_id = request->command_id;
rpc_app->app_callback(RpcAppEventAppExit, rpc_app->app_context);
} else {
status = PB_CommandStatus_ERROR_APP_NOT_RUNNING;
FURI_LOG_E(
TAG, "ExitRequest: APP_NOT_RUNNING, id %lu, status: %d", request->command_id, status);
rpc_send_and_release_empty(session, request->command_id, status);
}
}
static void rpc_system_app_load_file(const PB_Main* request, void* context) {
furi_assert(request);
furi_assert(context);
furi_assert(request->which_content == PB_Main_app_load_file_request_tag);
RpcAppSystem* rpc_app = context;
rpc_system_app_error_reset(rpc_app);
RpcSession* session = rpc_app->session;
furi_assert(session);
PB_CommandStatus status;
if(rpc_app->app_callback) {
FURI_LOG_D(TAG, "LoadFile: id %lu", request->command_id);
furi_assert(!rpc_app->last_id);
furi_assert(!rpc_app->last_data);
rpc_app->last_id = request->command_id;
rpc_app->last_data = strdup(request->content.app_load_file_request.path);
rpc_app->app_callback(RpcAppEventLoadFile, rpc_app->app_context);
} else {
status = PB_CommandStatus_ERROR_APP_NOT_RUNNING;
FURI_LOG_E(
TAG, "LoadFile: APP_NOT_RUNNING, id %lu, status: %d", request->command_id, status);
rpc_send_and_release_empty(session, request->command_id, status);
}
}
static void rpc_system_app_button_press(const PB_Main* request, void* context) {
furi_assert(request);
furi_assert(context);
furi_assert(request->which_content == PB_Main_app_button_press_request_tag);
RpcAppSystem* rpc_app = context;
rpc_system_app_error_reset(rpc_app);
RpcSession* session = rpc_app->session;
furi_assert(session);
PB_CommandStatus status;
if(rpc_app->app_callback) {
FURI_LOG_D(TAG, "ButtonPress");
furi_assert(!rpc_app->last_id);
furi_assert(!rpc_app->last_data);
rpc_app->last_id = request->command_id;
rpc_app->last_data = strdup(request->content.app_button_press_request.args);
rpc_app->app_callback(RpcAppEventButtonPress, rpc_app->app_context);
} else {
status = PB_CommandStatus_ERROR_APP_NOT_RUNNING;
FURI_LOG_E(
TAG, "ButtonPress: APP_NOT_RUNNING, id %lu, status: %d", request->command_id, status);
rpc_send_and_release_empty(session, request->command_id, status);
}
}
static void rpc_system_app_button_release(const PB_Main* request, void* context) {
furi_assert(request);
furi_assert(request->which_content == PB_Main_app_button_release_request_tag);
furi_assert(context);
RpcAppSystem* rpc_app = context;
rpc_system_app_error_reset(rpc_app);
RpcSession* session = rpc_app->session;
furi_assert(session);
PB_CommandStatus status;
if(rpc_app->app_callback) {
FURI_LOG_D(TAG, "ButtonRelease");
furi_assert(!rpc_app->last_id);
furi_assert(!rpc_app->last_data);
rpc_app->last_id = request->command_id;
rpc_app->app_callback(RpcAppEventButtonRelease, rpc_app->app_context);
} else {
status = PB_CommandStatus_ERROR_APP_NOT_RUNNING;
FURI_LOG_E(
TAG, "ButtonRelease: APP_NOT_RUNNING, id %lu, status: %d", request->command_id, status);
rpc_send_and_release_empty(session, request->command_id, status);
}
}
static void rpc_system_app_get_error_process(const PB_Main* request, void* context) {
furi_assert(request);
furi_assert(request->which_content == PB_Main_app_get_error_request_tag);
furi_assert(context);
RpcAppSystem* rpc_app = context;
RpcSession* session = rpc_app->session;
furi_assert(session);
rpc_app->error_msg->command_id = request->command_id;
FURI_LOG_D(TAG, "GetError");
rpc_send(session, rpc_app->error_msg);
}
static void rpc_system_app_data_exchange_process(const PB_Main* request, void* context) {
furi_assert(request);
furi_assert(request->which_content == PB_Main_app_data_exchange_request_tag);
furi_assert(context);
RpcAppSystem* rpc_app = context;
rpc_system_app_error_reset(rpc_app);
RpcSession* session = rpc_app->session;
furi_assert(session);
PB_CommandStatus command_status;
pb_bytes_array_t* data = request->content.app_data_exchange_request.data;
if(rpc_app->data_exchange_callback) {
uint8_t* data_bytes = NULL;
size_t data_size = 0;
if(data) {
data_bytes = data->bytes;
data_size = data->size;
}
rpc_app->data_exchange_callback(data_bytes, data_size, rpc_app->data_exchange_context);
command_status = PB_CommandStatus_OK;
} else {
command_status = PB_CommandStatus_ERROR_APP_CMD_ERROR;
}
FURI_LOG_D(TAG, "DataExchange");
rpc_send_and_release_empty(session, request->command_id, command_status);
}
void rpc_system_app_send_started(RpcAppSystem* rpc_app) {
furi_assert(rpc_app);
RpcSession* session = rpc_app->session;
furi_assert(session);
rpc_app->state_msg->content.app_state_response.state = PB_App_AppState_APP_STARTED;
FURI_LOG_D(TAG, "SendStarted");
rpc_send(session, rpc_app->state_msg);
}
void rpc_system_app_send_exited(RpcAppSystem* rpc_app) {
furi_assert(rpc_app);
RpcSession* session = rpc_app->session;
furi_assert(session);
rpc_app->state_msg->content.app_state_response.state = PB_App_AppState_APP_CLOSED;
FURI_LOG_D(TAG, "SendExit");
rpc_send(session, rpc_app->state_msg);
}
const char* rpc_system_app_get_data(RpcAppSystem* rpc_app) {
furi_assert(rpc_app);
furi_assert(rpc_app->last_data);
return rpc_app->last_data;
}
void rpc_system_app_confirm(RpcAppSystem* rpc_app, RpcAppSystemEvent event, bool result) {
furi_assert(rpc_app);
RpcSession* session = rpc_app->session;
furi_assert(session);
furi_assert(rpc_app->last_id);
PB_CommandStatus status = result ? PB_CommandStatus_OK : PB_CommandStatus_ERROR_APP_CMD_ERROR;
uint32_t last_id = 0;
switch(event) {
case RpcAppEventAppExit:
case RpcAppEventLoadFile:
case RpcAppEventButtonPress:
case RpcAppEventButtonRelease:
last_id = rpc_app->last_id;
rpc_app->last_id = 0;
if(rpc_app->last_data) {
free(rpc_app->last_data);
rpc_app->last_data = NULL;
}
FURI_LOG_D(TAG, "AppConfirm: event %d last_id %lu status %d", event, last_id, status);
rpc_send_and_release_empty(session, last_id, status);
break;
default:
furi_crash("RPC App state programming Error");
break;
}
}
void rpc_system_app_set_callback(RpcAppSystem* rpc_app, RpcAppSystemCallback callback, void* ctx) {
furi_assert(rpc_app);
rpc_app->app_callback = callback;
rpc_app->app_context = ctx;
}
void rpc_system_app_set_error_code(RpcAppSystem* rpc_app, uint32_t error_code) {
furi_assert(rpc_app);
PB_App_GetErrorResponse* content = &rpc_app->error_msg->content.app_get_error_response;
content->code = error_code;
}
void rpc_system_app_set_error_text(RpcAppSystem* rpc_app, const char* error_text) {
furi_assert(rpc_app);
PB_App_GetErrorResponse* content = &rpc_app->error_msg->content.app_get_error_response;
if(content->text) {
free(content->text);
}
content->text = error_text ? strdup(error_text) : NULL;
}
void rpc_system_app_error_reset(RpcAppSystem* rpc_app) {
furi_assert(rpc_app);
rpc_system_app_set_error_code(rpc_app, 0);
rpc_system_app_set_error_text(rpc_app, NULL);
}
void rpc_system_app_set_data_exchange_callback(
RpcAppSystem* rpc_app,
RpcAppSystemDataExchangeCallback callback,
void* ctx) {
furi_assert(rpc_app);
rpc_app->data_exchange_callback = callback;
rpc_app->data_exchange_context = ctx;
}
void rpc_system_app_exchange_data(RpcAppSystem* rpc_app, const uint8_t* data, size_t data_size) {
furi_assert(rpc_app);
RpcSession* session = rpc_app->session;
furi_assert(session);
PB_Main message = {
.command_id = 0,
.command_status = PB_CommandStatus_OK,
.has_next = false,
.which_content = PB_Main_app_data_exchange_request_tag,
};
PB_App_DataExchangeRequest* content = &message.content.app_data_exchange_request;
if(data && data_size) {
content->data = malloc(PB_BYTES_ARRAY_T_ALLOCSIZE(data_size));
content->data->size = data_size;
memcpy(content->data->bytes, data, data_size);
} else {
content->data = NULL;
}
rpc_send_and_release(session, &message);
}
void* rpc_system_app_alloc(RpcSession* session) {
furi_assert(session);
RpcAppSystem* rpc_app = malloc(sizeof(RpcAppSystem));
rpc_app->session = session;
// App exit message
rpc_app->state_msg = malloc(sizeof(PB_Main));
rpc_app->state_msg->which_content = PB_Main_app_state_response_tag;
rpc_app->state_msg->command_status = PB_CommandStatus_OK;
// App error message
rpc_app->error_msg = malloc(sizeof(PB_Main));
rpc_app->error_msg->which_content = PB_Main_app_get_error_response_tag;
rpc_app->error_msg->command_status = PB_CommandStatus_OK;
rpc_app->error_msg->content.app_get_error_response.code = 0;
rpc_app->error_msg->content.app_get_error_response.text = NULL;
RpcHandler rpc_handler = {
.message_handler = NULL,
.decode_submessage = NULL,
.context = rpc_app,
};
rpc_handler.message_handler = rpc_system_app_start_process;
rpc_add_handler(session, PB_Main_app_start_request_tag, &rpc_handler);
rpc_handler.message_handler = rpc_system_app_lock_status_process;
rpc_add_handler(session, PB_Main_app_lock_status_request_tag, &rpc_handler);
rpc_handler.message_handler = rpc_system_app_exit_request;
rpc_add_handler(session, PB_Main_app_exit_request_tag, &rpc_handler);
rpc_handler.message_handler = rpc_system_app_load_file;
rpc_add_handler(session, PB_Main_app_load_file_request_tag, &rpc_handler);
rpc_handler.message_handler = rpc_system_app_button_press;
rpc_add_handler(session, PB_Main_app_button_press_request_tag, &rpc_handler);
rpc_handler.message_handler = rpc_system_app_button_release;
rpc_add_handler(session, PB_Main_app_button_release_request_tag, &rpc_handler);
rpc_handler.message_handler = rpc_system_app_get_error_process;
rpc_add_handler(session, PB_Main_app_get_error_request_tag, &rpc_handler);
rpc_handler.message_handler = rpc_system_app_data_exchange_process;
rpc_add_handler(session, PB_Main_app_data_exchange_request_tag, &rpc_handler);
return rpc_app;
}
void rpc_system_app_free(void* context) {
RpcAppSystem* rpc_app = context;
furi_assert(rpc_app);
RpcSession* session = rpc_app->session;
furi_assert(session);
if(rpc_app->app_callback) {
rpc_app->app_callback(RpcAppEventSessionClose, rpc_app->app_context);
}
while(rpc_app->app_callback) {
furi_delay_tick(1);
}
furi_assert(!rpc_app->data_exchange_callback);
if(rpc_app->last_data) free(rpc_app->last_data);
pb_release(&PB_Main_msg, rpc_app->error_msg);
free(rpc_app->error_msg);
free(rpc_app->state_msg);
free(rpc_app);
}