769ab2aef2
* [FL-1489] IRDA: move to FileWorker, fixes * Use FileWorker * Use file_select to select remotes * Fix some crashes * Add RAW parsing restrictions * Remove excess scene (LearnDoneAfter) * Move all file system logic to standalone object
319 lines
9.0 KiB
C++
319 lines
9.0 KiB
C++
#include "irda-app-file-parser.hpp"
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#include "furi/check.h"
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#include "irda-app-remote-manager.hpp"
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#include "irda-app-signal.h"
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#include "m-string.h"
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#include <text-store.h>
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#include <irda.h>
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#include <cstdio>
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#include <stdint.h>
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#include <string>
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#include <string_view>
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#include <furi.h>
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#include <file-worker-cpp.h>
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uint32_t const IrdaAppFileParser::max_line_length = ((9 + 1) * 512 + 100);
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const char* IrdaAppFileParser::irda_directory = "/irda";
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const char* IrdaAppFileParser::irda_extension = ".ir";
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uint32_t const IrdaAppFileParser::max_raw_timings_in_signal = 512;
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bool IrdaAppFileParser::open_irda_file_read(const char* name) {
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std::string full_filename;
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if(name[0] != '/')
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full_filename = make_full_name(name);
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else
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full_filename = name;
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return file_worker.open(full_filename.c_str(), FSAM_READ, FSOM_OPEN_EXISTING);
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}
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bool IrdaAppFileParser::open_irda_file_write(const char* name) {
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std::string dirname(irda_directory);
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auto full_filename = make_full_name(name);
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if(!file_worker.mkdir(dirname.c_str())) return false;
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return file_worker.open(full_filename.c_str(), FSAM_WRITE, FSOM_CREATE_ALWAYS);
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}
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size_t IrdaAppFileParser::stringify_message(
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const IrdaAppSignal& signal,
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const char* name,
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char* buf,
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size_t buf_size) {
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auto message = signal.get_message();
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auto protocol = message.protocol;
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size_t written = 0;
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written += sniprintf(
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buf,
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buf_size,
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"%.31s %.31s A:%0*lX C:%0*lX\n",
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name,
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irda_get_protocol_name(protocol),
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irda_get_protocol_address_length(protocol),
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message.address,
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irda_get_protocol_command_length(protocol),
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message.command);
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furi_assert(written < buf_size);
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if(written >= buf_size) {
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written = 0;
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}
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return written;
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}
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size_t IrdaAppFileParser::stringify_raw_signal(
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const IrdaAppSignal& signal,
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const char* name,
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char* buf,
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size_t buf_size) {
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size_t written = 0;
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int duty_cycle = 100 * IRDA_COMMON_DUTY_CYCLE;
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written += sniprintf(
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&buf[written],
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max_line_length - written,
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"%.31s RAW F:%d DC:%d",
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name,
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IRDA_COMMON_CARRIER_FREQUENCY,
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duty_cycle);
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auto& raw_signal = signal.get_raw_signal();
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for(size_t i = 0; i < raw_signal.timings_cnt; ++i) {
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written += sniprintf(&buf[written], buf_size - written, " %ld", raw_signal.timings[i]);
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if(written > buf_size) {
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return false;
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}
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}
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written += snprintf(&buf[written], buf_size - written, "\n");
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furi_assert(written < buf_size);
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if(written >= buf_size) {
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written = 0;
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}
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return written;
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}
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bool IrdaAppFileParser::save_signal(const IrdaAppSignal& signal, const char* name) {
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char* buf = new char[max_line_length];
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size_t buf_cnt = 0;
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bool write_result = false;
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if(signal.is_raw()) {
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buf_cnt = stringify_raw_signal(signal, name, buf, max_line_length);
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} else {
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buf_cnt = stringify_message(signal, name, buf, max_line_length);
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}
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if(buf_cnt) {
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write_result = file_worker.write(buf, buf_cnt);
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}
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delete[] buf;
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return write_result;
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}
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std::unique_ptr<IrdaAppFileParser::IrdaFileSignal> IrdaAppFileParser::read_signal(void) {
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string_t line;
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string_init(line);
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string_reserve(line, max_line_length);
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std::unique_ptr<IrdaAppFileParser::IrdaFileSignal> file_signal;
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while(!file_signal &&
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file_worker.read_until_buffered(line, file_buf, &file_buf_cnt, sizeof(file_buf))) {
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if(string_empty_p(line)) {
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continue;
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}
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auto c_str = string_get_cstr(line);
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file_signal = parse_signal(c_str);
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if(!file_signal) {
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file_signal = parse_signal_raw(c_str);
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}
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}
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string_clear(line);
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return file_signal;
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}
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std::unique_ptr<IrdaAppFileParser::IrdaFileSignal>
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IrdaAppFileParser::parse_signal(const std::string& str) const {
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char protocol_name[32];
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uint32_t address;
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uint32_t command;
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auto irda_file_signal = std::make_unique<IrdaFileSignal>();
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int parsed = std::sscanf(
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str.c_str(),
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"%31s %31s A:%lX C:%lX",
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irda_file_signal->name,
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protocol_name,
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&address,
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&command);
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if(parsed != 4) {
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return nullptr;
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}
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IrdaProtocol protocol = irda_get_protocol_by_name(protocol_name);
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if(!irda_is_protocol_valid((IrdaProtocol)protocol)) {
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return nullptr;
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}
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int address_length = irda_get_protocol_address_length(protocol);
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uint32_t address_mask = (1LU << (4 * address_length)) - 1;
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if(address != (address & address_mask)) {
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return nullptr;
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}
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int command_length = irda_get_protocol_command_length(protocol);
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uint32_t command_mask = (1LU << (4 * command_length)) - 1;
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if(command != (command & command_mask)) {
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return nullptr;
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}
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IrdaMessage message = {
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.protocol = protocol,
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.address = address,
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.command = command,
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.repeat = false,
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};
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irda_file_signal->signal.set_message(&message);
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return irda_file_signal;
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}
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const char* find_first_not_of(const char* str, char symbol) {
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const char* str_start = nullptr;
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while(str != str_start) {
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str_start = str;
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str = strchr(str, symbol);
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}
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return str;
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}
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std::unique_ptr<IrdaAppFileParser::IrdaFileSignal>
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IrdaAppFileParser::parse_signal_raw(const std::string& string) const {
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uint32_t frequency;
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uint32_t duty_cycle;
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int str_len = string.size();
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std::string_view str(string.c_str());
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auto irda_file_signal = std::make_unique<IrdaFileSignal>();
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int parsed = std::sscanf(
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str.data(), "%31s RAW F:%ld DC:%ld", irda_file_signal->name, &frequency, &duty_cycle);
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if((parsed != 3) || (frequency > 42000) || (frequency < 32000) || (duty_cycle == 0) ||
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(duty_cycle >= 100)) {
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return nullptr;
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}
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char dummy[100] = {0};
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int header_len = 0;
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header_len = sniprintf(
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dummy,
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sizeof(dummy),
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"%.31s RAW F:%ld DC:%ld",
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irda_file_signal->name,
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frequency,
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duty_cycle);
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furi_assert(header_len < str_len);
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str.remove_prefix(header_len);
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/* move allocated timings into raw signal object */
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IrdaAppSignal::RawSignal raw_signal = {
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.timings_cnt = 0, .timings = new uint32_t[max_raw_timings_in_signal]};
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bool result = false;
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while(!str.empty()) {
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char buf[10];
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size_t index = str.find_first_not_of(' ', 1);
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if(index == std::string_view::npos) {
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break;
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}
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str.remove_prefix(index);
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parsed = std::sscanf(str.data(), "%9s", buf);
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if(parsed != 1) {
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result = false;
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furi_assert(0);
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break;
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}
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str.remove_prefix(strlen(buf));
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int value = atoi(buf);
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if(value <= 0) {
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result = false;
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furi_assert(0);
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break;
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}
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raw_signal.timings[raw_signal.timings_cnt] = value;
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++raw_signal.timings_cnt;
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result = true;
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if(raw_signal.timings_cnt >= max_raw_timings_in_signal) {
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result = false;
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furi_assert(0);
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break;
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}
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}
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if(result) {
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/* copy timings instead of moving them to occupy less than max_raw_timings_in_signal */
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irda_file_signal->signal.copy_raw_signal(raw_signal.timings, raw_signal.timings_cnt);
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} else {
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(void)irda_file_signal.release();
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}
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delete[] raw_signal.timings;
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return irda_file_signal;
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}
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bool IrdaAppFileParser::is_irda_file_exist(const char* name, bool* exist) {
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std::string full_path = make_full_name(name);
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return file_worker.is_file_exist(full_path.c_str(), exist);
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}
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std::string IrdaAppFileParser::make_full_name(const std::string& remote_name) const {
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return std::string("") + irda_directory + "/" + remote_name + irda_extension;
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}
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std::string IrdaAppFileParser::make_name(const std::string& full_name) const {
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std::string str(full_name, full_name.find_last_of('/') + 1, full_name.size());
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str.erase(str.find_last_of('.'));
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return str;
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}
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bool IrdaAppFileParser::remove_irda_file(const char* name) {
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std::string full_filename = make_full_name(name);
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return file_worker.remove(full_filename.c_str());
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}
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bool IrdaAppFileParser::rename_irda_file(const char* old_name, const char* new_name) {
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std::string old_filename = make_full_name(old_name);
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std::string new_filename = make_full_name(new_name);
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return file_worker.rename(old_filename.c_str(), new_filename.c_str());
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}
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bool IrdaAppFileParser::close() {
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return file_worker.close();
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}
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bool IrdaAppFileParser::check_errors() {
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return file_worker.check_errors();
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}
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std::string IrdaAppFileParser::file_select(const char* selected) {
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TextStore* filename_ts = new TextStore(128);
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bool result;
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result = file_worker.file_select(
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irda_directory, irda_extension, filename_ts->text, filename_ts->text_size, selected);
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delete filename_ts;
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return result ? std::string(filename_ts->text) : std::string();
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}
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