flipperzero-firmware/applications/irda/irda_app_file_parser.cpp

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#include "irda_app_file_parser.h"
#include "irda_app_remote_manager.h"
#include "irda_app_signal.h"
#include <m-string.h>
#include <cstdio>
#include <text_store.h>
#include <irda.h>
#include <string_view>
#include <furi.h>
#include <furi_hal_irda.h>
#include <file_worker_cpp.h>
#define TAG "IrdaFileParser"
bool IrdaAppFileParser::open_irda_file_read(const char* name) {
std::string full_filename;
if(name[0] != '/')
full_filename = make_full_name(name);
else
full_filename = name;
return file_worker.open(full_filename.c_str(), FSAM_READ, FSOM_OPEN_EXISTING);
}
bool IrdaAppFileParser::open_irda_file_write(const char* name) {
std::string dirname(irda_directory);
auto full_filename = make_full_name(name);
if(!file_worker.mkdir(dirname.c_str())) return false;
return file_worker.open(full_filename.c_str(), FSAM_WRITE, FSOM_CREATE_ALWAYS);
}
size_t IrdaAppFileParser::stringify_message(
const IrdaAppSignal& signal,
const char* name,
char* buf,
size_t buf_size) {
auto message = signal.get_message();
auto protocol = message.protocol;
size_t written = 0;
written += sniprintf(
buf,
buf_size,
"%.31s %.31s A:%0*lX C:%0*lX\n",
name,
irda_get_protocol_name(protocol),
ROUND_UP_TO(irda_get_protocol_address_length(protocol), 4),
message.address,
ROUND_UP_TO(irda_get_protocol_command_length(protocol), 4),
message.command);
furi_assert(written < buf_size);
if(written >= buf_size) {
written = 0;
}
return written;
}
size_t IrdaAppFileParser::stringify_raw_signal(
const IrdaAppSignal& signal,
const char* name,
char* buf,
size_t buf_size) {
size_t written = 0;
int duty_cycle = 100 * IRDA_COMMON_DUTY_CYCLE;
written += sniprintf(
&buf[written],
max_line_length - written,
"%.31s RAW F:%d DC:%d",
name,
IRDA_COMMON_CARRIER_FREQUENCY,
duty_cycle);
auto& raw_signal = signal.get_raw_signal();
for(size_t i = 0; i < raw_signal.timings_cnt; ++i) {
written += sniprintf(&buf[written], buf_size - written, " %ld", raw_signal.timings[i]);
if(written > buf_size) {
return false;
}
}
written += snprintf(&buf[written], buf_size - written, "\n");
furi_assert(written < buf_size);
if(written >= buf_size) {
written = 0;
}
return written;
}
bool IrdaAppFileParser::save_signal(const IrdaAppSignal& signal, const char* name) {
char* buf = new char[max_line_length];
size_t buf_cnt = 0;
bool write_result = false;
if(signal.is_raw()) {
buf_cnt = stringify_raw_signal(signal, name, buf, max_line_length);
} else {
buf_cnt = stringify_message(signal, name, buf, max_line_length);
}
if(buf_cnt) {
write_result = file_worker.write(buf, buf_cnt);
}
delete[] buf;
return write_result;
}
std::unique_ptr<IrdaAppFileParser::IrdaFileSignal> IrdaAppFileParser::read_signal(void) {
string_t line;
string_init(line);
string_reserve(line, max_line_length);
std::unique_ptr<IrdaAppFileParser::IrdaFileSignal> file_signal;
while(!file_signal &&
file_worker.read_until_buffered(line, file_buf, &file_buf_cnt, sizeof(file_buf))) {
if(string_empty_p(line)) {
continue;
}
auto c_str = string_get_cstr(line);
file_signal = parse_signal(c_str);
if(!file_signal) {
file_signal = parse_signal_raw(c_str);
}
}
string_clear(line);
return file_signal;
}
std::unique_ptr<IrdaAppFileParser::IrdaFileSignal>
IrdaAppFileParser::parse_signal(const std::string& str) const {
char protocol_name[32];
uint32_t address;
uint32_t command;
auto irda_file_signal = std::make_unique<IrdaFileSignal>();
int parsed = std::sscanf(
str.c_str(),
"%31s %31s A:%lX C:%lX",
irda_file_signal->name,
protocol_name,
&address,
&command);
if(parsed != 4) {
return nullptr;
}
IrdaProtocol protocol = irda_get_protocol_by_name(protocol_name);
if(!irda_is_protocol_valid((IrdaProtocol)protocol)) {
size_t end_of_str = MIN(str.find_last_not_of(" \t\r\n") + 1, (size_t)30);
FURI_LOG_E(
TAG, "Unknown protocol(\'%.*s...\'): \'%s\'", end_of_str, str.c_str(), protocol_name);
return nullptr;
}
uint32_t address_length = irda_get_protocol_address_length(protocol);
uint32_t address_mask = (1LU << address_length) - 1;
if(address != (address & address_mask)) {
size_t end_of_str = MIN(str.find_last_not_of(" \t\r\n") + 1, (size_t)30);
FURI_LOG_E(
TAG,
"Signal(\'%.*s...\'): address is too long (mask for this protocol is 0x%08X): 0x%X",
end_of_str,
str.c_str(),
address_mask,
address);
return nullptr;
}
uint32_t command_length = irda_get_protocol_command_length(protocol);
uint32_t command_mask = (1LU << command_length) - 1;
if(command != (command & command_mask)) {
size_t end_of_str = MIN(str.find_last_not_of(" \t\r\n") + 1, (size_t)30);
FURI_LOG_E(
TAG,
"Signal(\'%.*s...\'): command is too long (mask for this protocol is 0x%08X): 0x%X",
end_of_str,
str.c_str(),
command_mask,
command);
return nullptr;
}
IrdaMessage message = {
.protocol = protocol,
.address = address,
.command = command,
.repeat = false,
};
irda_file_signal->signal.set_message(&message);
return irda_file_signal;
}
const char* find_first_not_of(const char* str, char symbol) {
const char* str_start = nullptr;
while(str != str_start) {
str_start = str;
str = strchr(str, symbol);
}
return str;
}
static int remove_args32(std::string_view& str, size_t num) {
int removed_length = 0;
while(num--) {
char buf[32];
size_t index = str.find_first_not_of(" \t");
if(index == std::string_view::npos) break;
removed_length += index;
str.remove_prefix(index);
if(str.empty()) break;
int parsed = std::sscanf(str.data(), "%31s", buf);
if(!parsed) break;
size_t len = strlen(buf);
if(!len) break;
removed_length += len;
str.remove_prefix(len);
if(str.empty()) break;
}
return removed_length;
}
std::unique_ptr<IrdaAppFileParser::IrdaFileSignal>
IrdaAppFileParser::parse_signal_raw(const std::string& string) const {
uint32_t frequency;
uint32_t duty_cycle;
std::string_view str(string.c_str());
auto irda_file_signal = std::make_unique<IrdaFileSignal>();
int parsed = std::sscanf(
str.data(), "%31s RAW F:%ld DC:%ld", irda_file_signal->name, &frequency, &duty_cycle);
if(parsed != 3) {
return nullptr;
}
if((frequency < IRDA_MIN_FREQUENCY) || (frequency > IRDA_MAX_FREQUENCY)) {
size_t end_of_str = MIN(string.find_last_not_of(" \t\r\n") + 1, (size_t)30);
FURI_LOG_E(
TAG,
"RAW signal(\'%.*s...\'): frequency is out of bounds (%ld-%ld): %ld",
end_of_str,
string.c_str(),
IRDA_MIN_FREQUENCY,
IRDA_MAX_FREQUENCY,
frequency);
return nullptr;
}
if((duty_cycle == 0) || (duty_cycle > 100)) {
size_t end_of_str = MIN(string.find_last_not_of(" \t\r\n") + 1, (size_t)30);
FURI_LOG_E(
TAG,
"RAW signal(\'%.*s...\'): duty cycle is out of bounds (0-100): %ld",
end_of_str,
string.c_str(),
duty_cycle);
return nullptr;
}
int header_len = remove_args32(str, 4);
size_t last_valid_ch = str.find_last_not_of(" \t\r\n");
if(last_valid_ch != std::string_view::npos) {
str.remove_suffix(str.size() - last_valid_ch - 1);
} else {
FURI_LOG_E(TAG, "RAW signal(\'%.*s\'): no timings", header_len, string.c_str());
return nullptr;
}
/* move allocated timings into raw signal object */
IrdaAppSignal::RawSignal raw_signal = {
.timings_cnt = 0, .timings = new uint32_t[max_raw_timings_in_signal]};
bool result = false;
while(!str.empty()) {
char buf[10];
size_t index = str.find_first_not_of(" \t", 1);
if(index == std::string_view::npos) {
break;
}
str.remove_prefix(index);
parsed = std::sscanf(str.data(), "%9s", buf);
if(parsed != 1) {
FURI_LOG_E(
TAG,
"RAW signal(\'%.*s...\'): failed on timing[%ld] \'%*s\'",
header_len,
string.c_str(),
raw_signal.timings_cnt,
str.size(),
str.data());
result = false;
break;
}
str.remove_prefix(strlen(buf));
int value = atoi(buf);
if(value <= 0) {
FURI_LOG_E(
TAG,
"RAW signal(\'%.*s...\'): failed on timing[%ld] \'%s\'",
header_len,
string.c_str(),
raw_signal.timings_cnt,
buf);
result = false;
break;
}
if(raw_signal.timings_cnt >= max_raw_timings_in_signal) {
FURI_LOG_E(
TAG,
"RAW signal(\'%.*s...\'): too much timings (max %ld)",
header_len,
string.c_str(),
max_raw_timings_in_signal);
result = false;
break;
}
raw_signal.timings[raw_signal.timings_cnt] = value;
++raw_signal.timings_cnt;
result = true;
}
if(result) {
/* copy timings instead of moving them to occupy less than max_raw_timings_in_signal */
irda_file_signal->signal.copy_raw_signal(raw_signal.timings, raw_signal.timings_cnt);
} else {
irda_file_signal.reset();
}
delete[] raw_signal.timings;
return irda_file_signal;
}
bool IrdaAppFileParser::is_irda_file_exist(const char* name, bool* exist) {
std::string full_path = make_full_name(name);
return file_worker.is_file_exist(full_path.c_str(), exist);
}
std::string IrdaAppFileParser::make_full_name(const std::string& remote_name) const {
return std::string("") + irda_directory + "/" + remote_name + irda_extension;
}
std::string IrdaAppFileParser::make_name(const std::string& full_name) const {
std::string str(full_name, full_name.find_last_of('/') + 1, full_name.size());
str.erase(str.find_last_of('.'));
return str;
}
bool IrdaAppFileParser::remove_irda_file(const char* name) {
std::string full_filename = make_full_name(name);
return file_worker.remove(full_filename.c_str());
}
bool IrdaAppFileParser::rename_irda_file(const char* old_name, const char* new_name) {
std::string old_filename = make_full_name(old_name);
std::string new_filename = make_full_name(new_name);
return file_worker.rename(old_filename.c_str(), new_filename.c_str());
}
bool IrdaAppFileParser::close() {
return file_worker.close();
}
bool IrdaAppFileParser::check_errors() {
return file_worker.check_errors();
}
std::string IrdaAppFileParser::file_select(const char* selected) {
auto filename_ts = std::make_unique<TextStore>(IrdaAppRemoteManager::max_remote_name_length);
bool result;
result = file_worker.file_select(
irda_directory, irda_extension, filename_ts->text, filename_ts->text_size, selected);
return result ? std::string(filename_ts->text) : std::string();
}