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[FL-1472, FL-1596, FL-1673] IRDA: stability improvements (#655)

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- Restrict with 31 bytes length for remote and signal name
- Don't stuck for 0 PWM cycle timings
- Support timings > 65535 PWM cycles
- Fix remote file open error
- Add IRDA TX debug redirect
- Add remote parse error print, improve parsing, support tabs
- Fix stucks with uncorrect RAW signal values, long strings in remote file, etc
- Fix HAL signals capturing (save previous read value)
- Fix leak in case of failed parsing
This commit is contained in:
Albert Kharisov
2021-08-19 03:18:42 +03:00
committed by GitHub
parent 9d38f28de7
commit 5f6aff2255
19 changed files with 347 additions and 177 deletions
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153
applications/irda/irda-app-file-parser.cpp
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@@ -1,22 +1,16 @@
#include "irda-app-file-parser.h"
#include "furi/check.h"
#include "irda-app-remote-manager.h"
#include "irda-app-signal.h"
#include "m-string.h"
#include <m-string.h>
#include <cstdio>
#include <text-store.h>
#include <irda.h>
#include <cstdio>
#include <stdint.h>
#include <string>
#include <string_view>
#include <furi.h>
#include <furi-hal-irda.h>
#include <file-worker-cpp.h>
uint32_t const IrdaAppFileParser::max_line_length = ((9 + 1) * 512 + 100);
const char* IrdaAppFileParser::irda_directory = "/any/irda";
const char* IrdaAppFileParser::irda_extension = ".ir";
uint32_t const IrdaAppFileParser::max_raw_timings_in_signal = 512;
bool IrdaAppFileParser::open_irda_file_read(const char* name) {
std::string full_filename;
if(name[0] != '/')
@@ -158,18 +152,41 @@ std::unique_ptr<IrdaAppFileParser::IrdaFileSignal>
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(
"IrdaFileParser",
"Unknown protocol(\'%.*s...\'): \'%s\'",
end_of_str,
str.c_str(),
protocol_name);
return nullptr;
}
int address_length = irda_get_protocol_address_length(protocol);
uint32_t address_mask = (1LU << (4 * 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(
"IrdaFileParser",
"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;
}
int command_length = irda_get_protocol_command_length(protocol);
uint32_t command_mask = (1LU << (4 * 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(
"IrdaFileParser",
"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;
}
@@ -195,34 +212,81 @@ const char* find_first_not_of(const char* str, char 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;
int str_len = string.size();
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) || (frequency > 42000) || (frequency < 32000) || (duty_cycle == 0) ||
(duty_cycle >= 100)) {
if(parsed != 3) {
return nullptr;
}
char dummy[100] = {0};
int header_len = 0;
header_len = sniprintf(
dummy,
sizeof(dummy),
"%.31s RAW F:%ld DC:%ld",
irda_file_signal->name,
frequency,
duty_cycle);
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(
"IrdaFileParser",
"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;
}
furi_assert(header_len < str_len);
str.remove_prefix(header_len);
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(
"IrdaFileParser",
"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(
"IrdaFileParser", "RAW signal(\'%.*s\'): no timings", header_len, string.c_str());
return nullptr;
}
/* move allocated timings into raw signal object */
IrdaAppSignal::RawSignal raw_signal = {
@@ -231,40 +295,59 @@ std::unique_ptr<IrdaAppFileParser::IrdaFileSignal>
while(!str.empty()) {
char buf[10];
size_t index = str.find_first_not_of(' ', 1);
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(
"IrdaFileParser",
"RAW signal(\'%.*s...\'): failed on timing[%ld] \'%*s\'",
header_len,
string.c_str(),
raw_signal.timings_cnt,
str.size(),
str.data());
result = false;
furi_assert(0);
break;
}
str.remove_prefix(strlen(buf));
int value = atoi(buf);
if(value <= 0) {
FURI_LOG_E(
"IrdaFileParser",
"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(
"IrdaFileParser",
"RAW signal(\'%.*s...\'): too much timings (max %ld)",
header_len,
string.c_str(),
max_raw_timings_in_signal);
result = false;
furi_assert(0);
break;
}
raw_signal.timings[raw_signal.timings_cnt] = value;
++raw_signal.timings_cnt;
result = true;
if(raw_signal.timings_cnt >= max_raw_timings_in_signal) {
result = false;
furi_assert(0);
break;
}
}
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 {
(void)irda_file_signal.release();
irda_file_signal.reset();
}
delete[] raw_signal.timings;
return irda_file_signal;
@@ -306,13 +389,11 @@ bool IrdaAppFileParser::check_errors() {
}
std::string IrdaAppFileParser::file_select(const char* selected) {
TextStore* filename_ts = new TextStore(128);
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);
delete filename_ts;
return result ? std::string(filename_ts->text) : std::string();
}