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Yağız Zengin
2025-07-21 12:08:45 +03:00
commit d65867c249
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41
srclib/libhelper/CMakeLists.txt Normal file
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#
# Copyright 2025 Yağız Zengin
#
# 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.
#
set(LIBHELPER_FLAGS -Wall -DLIB_BUILD_MODE)
set(LIBHELPER_SOURCES
${CMAKE_CURRENT_SOURCE_DIR}/src/Checkers.cpp
${CMAKE_CURRENT_SOURCE_DIR}/src/Classes.cpp
${CMAKE_CURRENT_SOURCE_DIR}/src/FileUtil.cpp
${CMAKE_CURRENT_SOURCE_DIR}/src/Sha256.cpp
${CMAKE_CURRENT_SOURCE_DIR}/src/Utilities.cpp
)
# Add targets
add_library(helper_shared SHARED ${LIBHELPER_SOURCES})
add_library(helper_static STATIC ${LIBHELPER_SOURCES})
add_executable(libhelper_test tests/test.cpp)
# Set compiler flags
target_compile_options(helper_shared PRIVATE ${LIBHELPER_FLAGS})
target_compile_options(helper_static PRIVATE ${LIBHELPER_FLAGS})
target_compile_options(libhelper_test PRIVATE ${LIBHELPER_FLAGS})
target_link_libraries(libhelper_test PRIVATE helper_shared)
target_link_options(libhelper_test PRIVATE "LINKER:-rpath,/data/data/com.termux/files/usr/lib")
target_link_options(helper_shared PRIVATE "LINKER:-rpath,/data/data/com.termux/files/usr/lib")
# Set appropriate output names
set_target_properties(helper_shared PROPERTIES OUTPUT_NAME "helper")
set_target_properties(helper_static PROPERTIES OUTPUT_NAME "helper")

186
srclib/libhelper/include/libhelper/lib.hpp Normal file
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/*
Copyright 2025 Yağız Zengin
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.
*/
#ifndef LIBHELPER_LIB_HPP
#define LIBHELPER_LIB_HPP
#define LIBHELPER_MAJOR 1
#define LIBHELPER_MINOR 0
#define LIBHELPER_PATCH 0
#include <string>
#include <string_view>
#include <sstream>
#include <exception>
#include <optional>
#ifndef ONLY_HELPER_MACROS
enum LogLevels {
INFO = (int)'I',
WARNING = (int)'W',
ERROR = (int)'E',
ABORT = (int)'A'
};
constexpr mode_t DEFAULT_FILE_PERMS = 0644;
constexpr mode_t DEFAULT_DIR_PERMS = 0755;
constexpr int YES = 1;
constexpr int NO = 0;
namespace Helper {
// Logging
class Logger {
private:
LogLevels _level;
std::ostringstream _oss;
const char *_logFile, *_program_name, *_file;
int _line;
public:
Logger(LogLevels level, const char* file, const char* name, const char* sfile, int line);
~Logger();
template <typename T>
Logger& operator<<(const T& msg)
{
_oss << msg;
return *this;
}
Logger& operator<<(std::ostream& (*msg)(std::ostream&));
};
class LoggingProperties {
public:
static std::string_view FILE, NAME;
static bool PRINT;
static void set(std::string_view name, std::string_view file);
static void setProgramName(std::string_view name);
static void setLogFile(std::string_view file);
static void setPrinting(int state);
static void reset();
};
// Throwable error class
class Error : public std::exception {
private:
std::string _message;
public:
Error(const char* format, ...);
const char* what() const noexcept override;
};
// Checkers
bool hasSuperUser();
bool isExists(const std::string_view entry);
bool fileIsExists(const std::string_view file);
bool directoryIsExists(const std::string_view directory);
bool linkIsExists(const std::string_view entry);
bool isLink(const std::string_view entry);
bool isSymbolicLink(const std::string_view entry);
bool isHardLink(const std::string_view entry);
bool areLinked(const std::string_view entry1, const std::string_view entry2);
// File I/O
bool writeFile(const std::string_view file, const std::string_view text);
std::optional<std::string> readFile(const std::string_view file);
// Creators
bool makeDirectory(const std::string_view path);
bool makeRecursiveDirectory(const std::string_view paths);
bool createFile(const std::string_view path);
bool createSymlink(const std::string_view entry1, const std::string_view entry2);
// Removers
bool eraseEntry(const std::string_view entry);
bool eraseDirectoryRecursive(const std::string_view directory);
// Getters
size_t fileSize(const std::string_view file);
std::string_view readSymlink(const std::string_view entry);
// SHA-256
bool sha256Compare(const std::string_view file1, const std::string_view file2);
std::optional<std::string_view> sha256Of(const std::string_view path);
// Utilities
bool copyFile(const std::string_view file, const std::string_view dest);
bool runCommand(const std::string_view cmd);
bool confirmPropt(const std::string_view message);
std::string currentWorkingDirectory();
std::string currentDate();
std::string currentTime();
std::string runCommandWithOutput(const std::string_view cmd);
std::string pathJoin(std::string base, std::string relative);
std::string pathBasename(const std::string_view entry);
std::string pathDirname(const std::string_view entry);
// Library-specif
std::string getLibVersion();
} // namespace Helper
#endif // #ifndef ONLY_HELPER_MACROS
#define KB(x) (x * 1024) // KB(8) = 8192 (8 * 1024)
#define MB(x) (KB(x) * 1024) // MB(4) = 4194304 (KB(4) * 1024)
#define GB(x) (MB(x) * 1024) // GB(1) = 1073741824 (MB(1) * 1024)
#define STYLE_RESET "\033[0m"
#define BOLD "\033[1m"
#define FAINT "\033[2m"
#define ITALIC "\033[3m"
#define UNDERLINE "\033[4m"
#define BLINC "\033[5m"
#define FAST_BLINC "\033[6m"
#define STRIKE_THROUGHT "\033[9m"
#define NO_UNDERLINE "\033[24m"
#define NO_BLINC "\033[25m"
#define RED "\033[31m"
#define GREEN "\033[32m"
#define YELLOW "\033[33m"
#ifndef NO_C_TYPE_HANDLERS
// ABORT(message), ex: ABORT("memory error!\n")
#define ABORT(msg) \
do { \
fprintf(stderr, "%s%sCRITICAL ERROR%s: %s\nAborting...\n", BOLD, RED, STYLE_RESET, msg); \
abort(); \
} while (0)
// ERROR(message, exit), ex: ERROR("an error occured.\n", 1)
#define ERROR(msg, code) \
do { \
fprintf(stderr, "%s%sERROR%s: %s", BOLD, RED, STYLE_RESET, msg); \
exit(code); \
} while (0)
// WARNING(message), ex: WARNING("using default setting.\n")
#define WARNING(msg) \
fprintf(stderr, "%s%sWARNING%s: %s", BOLD, YELLOW, STYLE_RESET, msg);
// INFO(message), ex: INFO("operation ended.\n")
#define INFO(msg) \
fprintf(stdout, "%s%sINFO%s: %s", BOLD, GREEN, STYLE_RESET, msg);
#endif // #ifndef NO_C_TYPE_HANDLERS
#define LOG(level) Helper::Logger(level, Helper::LoggingProperties::FILE.data(), Helper::LoggingProperties::NAME.data(), __FILE__, __LINE__)
#endif // #ifndef LIBHELPER_LIB_HPP

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srclib/libhelper/include/picosha2.h Normal file
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/*
The MIT License (MIT)
Copyright (C) 2017 okdshin
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/
#ifndef PICOSHA2_H
#define PICOSHA2_H
// picosha2:20140213
#ifndef PICOSHA2_BUFFER_SIZE_FOR_INPUT_ITERATOR
#define PICOSHA2_BUFFER_SIZE_FOR_INPUT_ITERATOR \
1048576 //=1024*1024: default is 1MB memory
#endif
#include <algorithm>
#include <cassert>
#include <iterator>
#include <sstream>
#include <vector>
#include <fstream>
namespace picosha2 {
typedef unsigned long word_t;
typedef unsigned char byte_t;
static const size_t k_digest_size = 32;
namespace detail {
inline byte_t mask_8bit(byte_t x) { return x & 0xff; }
inline word_t mask_32bit(word_t x) { return x & 0xffffffff; }
const word_t add_constant[64] = {
0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1,
0x923f82a4, 0xab1c5ed5, 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174, 0xe49b69c1, 0xefbe4786,
0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147,
0x06ca6351, 0x14292967, 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85, 0xa2bfe8a1, 0xa81a664b,
0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a,
0x5b9cca4f, 0x682e6ff3, 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2};
const word_t initial_message_digest[8] = {0x6a09e667, 0xbb67ae85, 0x3c6ef372,
0xa54ff53a, 0x510e527f, 0x9b05688c,
0x1f83d9ab, 0x5be0cd19};
inline word_t ch(word_t x, word_t y, word_t z) { return (x & y) ^ ((~x) & z); }
inline word_t maj(word_t x, word_t y, word_t z) {
return (x & y) ^ (x & z) ^ (y & z);
}
inline word_t rotr(word_t x, std::size_t n) {
assert(n < 32);
return mask_32bit((x >> n) | (x << (32 - n)));
}
inline word_t bsig0(word_t x) { return rotr(x, 2) ^ rotr(x, 13) ^ rotr(x, 22); }
inline word_t bsig1(word_t x) { return rotr(x, 6) ^ rotr(x, 11) ^ rotr(x, 25); }
inline word_t shr(word_t x, std::size_t n) {
assert(n < 32);
return x >> n;
}
inline word_t ssig0(word_t x) { return rotr(x, 7) ^ rotr(x, 18) ^ shr(x, 3); }
inline word_t ssig1(word_t x) { return rotr(x, 17) ^ rotr(x, 19) ^ shr(x, 10); }
template <typename RaIter1, typename RaIter2>
void hash256_block(RaIter1 message_digest, RaIter2 first, RaIter2 last) {
assert(first + 64 == last);
static_cast<void>(last); // for avoiding unused-variable warning
word_t w[64];
std::fill(w, w + 64, word_t(0));
for (std::size_t i = 0; i < 16; ++i) {
w[i] = (static_cast<word_t>(mask_8bit(*(first + i * 4))) << 24) |
(static_cast<word_t>(mask_8bit(*(first + i * 4 + 1))) << 16) |
(static_cast<word_t>(mask_8bit(*(first + i * 4 + 2))) << 8) |
(static_cast<word_t>(mask_8bit(*(first + i * 4 + 3))));
}
for (std::size_t i = 16; i < 64; ++i) {
w[i] = mask_32bit(ssig1(w[i - 2]) + w[i - 7] + ssig0(w[i - 15]) +
w[i - 16]);
}
word_t a = *message_digest;
word_t b = *(message_digest + 1);
word_t c = *(message_digest + 2);
word_t d = *(message_digest + 3);
word_t e = *(message_digest + 4);
word_t f = *(message_digest + 5);
word_t g = *(message_digest + 6);
word_t h = *(message_digest + 7);
for (std::size_t i = 0; i < 64; ++i) {
word_t temp1 = h + bsig1(e) + ch(e, f, g) + add_constant[i] + w[i];
word_t temp2 = bsig0(a) + maj(a, b, c);
h = g;
g = f;
f = e;
e = mask_32bit(d + temp1);
d = c;
c = b;
b = a;
a = mask_32bit(temp1 + temp2);
}
*message_digest += a;
*(message_digest + 1) += b;
*(message_digest + 2) += c;
*(message_digest + 3) += d;
*(message_digest + 4) += e;
*(message_digest + 5) += f;
*(message_digest + 6) += g;
*(message_digest + 7) += h;
for (std::size_t i = 0; i < 8; ++i) {
*(message_digest + i) = mask_32bit(*(message_digest + i));
}
}
} // namespace detail
template <typename InIter>
void output_hex(InIter first, InIter last, std::ostream& os) {
os.setf(std::ios::hex, std::ios::basefield);
while (first != last) {
os.width(2);
os.fill('0');
os << static_cast<unsigned int>(*first);
++first;
}
os.setf(std::ios::dec, std::ios::basefield);
}
template <typename InIter>
void bytes_to_hex_string(InIter first, InIter last, std::string& hex_str) {
std::ostringstream oss;
output_hex(first, last, oss);
hex_str.assign(oss.str());
}
template <typename InContainer>
void bytes_to_hex_string(const InContainer& bytes, std::string& hex_str) {
bytes_to_hex_string(bytes.begin(), bytes.end(), hex_str);
}
template <typename InIter>
std::string bytes_to_hex_string(InIter first, InIter last) {
std::string hex_str;
bytes_to_hex_string(first, last, hex_str);
return hex_str;
}
template <typename InContainer>
std::string bytes_to_hex_string(const InContainer& bytes) {
std::string hex_str;
bytes_to_hex_string(bytes, hex_str);
return hex_str;
}
class hash256_one_by_one {
public:
hash256_one_by_one() { init(); }
void init() {
buffer_.clear();
std::fill(data_length_digits_, data_length_digits_ + 4, word_t(0));
std::copy(detail::initial_message_digest,
detail::initial_message_digest + 8, h_);
}
template <typename RaIter>
void process(RaIter first, RaIter last) {
add_to_data_length(static_cast<word_t>(std::distance(first, last)));
std::copy(first, last, std::back_inserter(buffer_));
std::size_t i = 0;
for (; i + 64 <= buffer_.size(); i += 64) {
detail::hash256_block(h_, buffer_.begin() + i,
buffer_.begin() + i + 64);
}
buffer_.erase(buffer_.begin(), buffer_.begin() + i);
}
void finish() {
byte_t temp[64];
std::fill(temp, temp + 64, byte_t(0));
std::size_t remains = buffer_.size();
std::copy(buffer_.begin(), buffer_.end(), temp);
temp[remains] = 0x80;
if (remains > 55) {
std::fill(temp + remains + 1, temp + 64, byte_t(0));
detail::hash256_block(h_, temp, temp + 64);
std::fill(temp, temp + 64 - 4, byte_t(0));
} else {
std::fill(temp + remains + 1, temp + 64 - 4, byte_t(0));
}
write_data_bit_length(&(temp[56]));
detail::hash256_block(h_, temp, temp + 64);
}
template <typename OutIter>
void get_hash_bytes(OutIter first, OutIter last) const {
for (const word_t* iter = h_; iter != h_ + 8; ++iter) {
for (std::size_t i = 0; i < 4 && first != last; ++i) {
*(first++) = detail::mask_8bit(
static_cast<byte_t>((*iter >> (24 - 8 * i))));
}
}
}
private:
void add_to_data_length(word_t n) {
word_t carry = 0;
data_length_digits_[0] += n;
for (std::size_t i = 0; i < 4; ++i) {
data_length_digits_[i] += carry;
if (data_length_digits_[i] >= 65536u) {
carry = data_length_digits_[i] >> 16;
data_length_digits_[i] &= 65535u;
} else {
break;
}
}
}
void write_data_bit_length(byte_t* begin) {
word_t data_bit_length_digits[4];
std::copy(data_length_digits_, data_length_digits_ + 4,
data_bit_length_digits);
// convert byte length to bit length (multiply 8 or shift 3 times left)
word_t carry = 0;
for (std::size_t i = 0; i < 4; ++i) {
word_t before_val = data_bit_length_digits[i];
data_bit_length_digits[i] <<= 3;
data_bit_length_digits[i] |= carry;
data_bit_length_digits[i] &= 65535u;
carry = (before_val >> (16 - 3)) & 65535u;
}
// write data_bit_length
for (int i = 3; i >= 0; --i) {
(*begin++) = static_cast<byte_t>(data_bit_length_digits[i] >> 8);
(*begin++) = static_cast<byte_t>(data_bit_length_digits[i]);
}
}
std::vector<byte_t> buffer_;
word_t data_length_digits_[4]; // as 64bit integer (16bit x 4 integer)
word_t h_[8];
};
inline void get_hash_hex_string(const hash256_one_by_one& hasher,
std::string& hex_str) {
byte_t hash[k_digest_size];
hasher.get_hash_bytes(hash, hash + k_digest_size);
return bytes_to_hex_string(hash, hash + k_digest_size, hex_str);
}
inline std::string get_hash_hex_string(const hash256_one_by_one& hasher) {
std::string hex_str;
get_hash_hex_string(hasher, hex_str);
return hex_str;
}
namespace impl {
template <typename RaIter, typename OutIter>
void hash256_impl(RaIter first, RaIter last, OutIter first2, OutIter last2, int,
std::random_access_iterator_tag) {
hash256_one_by_one hasher;
// hasher.init();
hasher.process(first, last);
hasher.finish();
hasher.get_hash_bytes(first2, last2);
}
template <typename InputIter, typename OutIter>
void hash256_impl(InputIter first, InputIter last, OutIter first2,
OutIter last2, int buffer_size, std::input_iterator_tag) {
std::vector<byte_t> buffer(buffer_size);
hash256_one_by_one hasher;
// hasher.init();
while (first != last) {
int size = buffer_size;
for (int i = 0; i != buffer_size; ++i, ++first) {
if (first == last) {
size = i;
break;
}
buffer[i] = *first;
}
hasher.process(buffer.begin(), buffer.begin() + size);
}
hasher.finish();
hasher.get_hash_bytes(first2, last2);
}
}
template <typename InIter, typename OutIter>
void hash256(InIter first, InIter last, OutIter first2, OutIter last2,
int buffer_size = PICOSHA2_BUFFER_SIZE_FOR_INPUT_ITERATOR) {
picosha2::impl::hash256_impl(
first, last, first2, last2, buffer_size,
typename std::iterator_traits<InIter>::iterator_category());
}
template <typename InIter, typename OutContainer>
void hash256(InIter first, InIter last, OutContainer& dst) {
hash256(first, last, dst.begin(), dst.end());
}
template <typename InContainer, typename OutIter>
void hash256(const InContainer& src, OutIter first, OutIter last) {
hash256(src.begin(), src.end(), first, last);
}
template <typename InContainer, typename OutContainer>
void hash256(const InContainer& src, OutContainer& dst) {
hash256(src.begin(), src.end(), dst.begin(), dst.end());
}
template <typename InIter>
void hash256_hex_string(InIter first, InIter last, std::string& hex_str) {
byte_t hashed[k_digest_size];
hash256(first, last, hashed, hashed + k_digest_size);
std::ostringstream oss;
output_hex(hashed, hashed + k_digest_size, oss);
hex_str.assign(oss.str());
}
template <typename InIter>
std::string hash256_hex_string(InIter first, InIter last) {
std::string hex_str;
hash256_hex_string(first, last, hex_str);
return hex_str;
}
inline void hash256_hex_string(const std::string& src, std::string& hex_str) {
hash256_hex_string(src.begin(), src.end(), hex_str);
}
template <typename InContainer>
void hash256_hex_string(const InContainer& src, std::string& hex_str) {
hash256_hex_string(src.begin(), src.end(), hex_str);
}
template <typename InContainer>
std::string hash256_hex_string(const InContainer& src) {
return hash256_hex_string(src.begin(), src.end());
}
template<typename OutIter>void hash256(std::ifstream& f, OutIter first, OutIter last){
hash256(std::istreambuf_iterator<char>(f), std::istreambuf_iterator<char>(), first,last);
}
}// namespace picosha2
#endif // PICOSHA2_H

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/*
Copyright 2025 Yağız Zengin
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.
*/
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <sys/stat.h>
#include <unistd.h>
#include <libhelper/lib.hpp>
namespace Helper {
bool hasSuperUser()
{
return (getuid() == 0);
}
bool isExists(const std::string_view entry)
{
struct stat st;
return (stat(entry.data(), &st) == 0);
}
bool fileIsExists(const std::string_view file)
{
struct stat st;
if (stat(file.data(), &st) != 0) return false;
return S_ISREG(st.st_mode);
}
bool directoryIsExists(const std::string_view directory)
{
struct stat st;
if (stat(directory.data(), &st) != 0) return false;
return S_ISDIR(st.st_mode);
}
bool linkIsExists(const std::string_view entry)
{
return (isLink(entry) || isHardLink(entry));
}
bool isLink(const std::string_view entry)
{
struct stat st;
if (lstat(entry.data(), &st) != 0) return false;
return S_ISLNK(st.st_mode);
}
bool isSymbolicLink(const std::string_view entry)
{
return isLink(entry);
}
bool isHardLink(const std::string_view entry)
{
struct stat st;
if (lstat(entry.data(), &st) != 0) return false;
return (st.st_nlink >= 2);
}
bool areLinked(const std::string_view entry1, const std::string_view entry2)
{
const std::string_view st1 = (isSymbolicLink(entry1)) ? readSymlink(entry1) : entry1;
const std::string_view st2 = (isSymbolicLink(entry2)) ? readSymlink(entry2) : entry2;
return (st1 == st2);
}
} // namespace Helper

96
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/*
Copyright 2025 Yağız Zengin
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.
*/
#include <exception>
#include <sstream>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <libgen.h>
#include <stdarg.h>
#include <libhelper/lib.hpp>
namespace Helper {
std::string_view LoggingProperties::FILE = "last_logs.log", LoggingProperties::NAME = "main";
bool LoggingProperties::PRINT = NO;
Error::Error(const char* format, ...)
{
char buf[1024];
va_list args;
va_start(args, format);
vsnprintf(buf, sizeof(buf), format, args);
va_end(args);
_message = std::string(buf);
}
const char* Error::what() const noexcept
{
return _message.data();
}
Logger::Logger(LogLevels level, const char* file, const char* name, const char* sfile, int line) : _level(level), _logFile(file), _program_name(name), _file(sfile), _line(line) {}
Logger::~Logger()
{
char str[1024];
snprintf(str, sizeof(str), "<%c> [ <prog %s> <on %s:%d> %s %s] %s",
(char)_level,
_program_name,
basename((char*)_file),
_line,
currentDate().data(),
currentTime().data(),
_oss.str().data());
if (!isExists(_logFile)) createFile(_logFile);
FILE* fp = fopen(_logFile, "a");
if (fp != NULL) {
fprintf(fp, "%s", str);
fclose(fp);
}
if (LoggingProperties::PRINT) printf("%s\n", str);
if (_level == ERROR) exit(1);
else if (_level == ABORT) abort();
}
Logger& Logger::operator<<(std::ostream& (*msg)(std::ostream&))
{
_oss << msg;
return *this;
}
void LoggingProperties::reset()
{
FILE = "last_logs.log";
NAME = "main";
PRINT = NO;
}
void LoggingProperties::set(std::string_view file, std::string_view name)
{
FILE = file;
NAME = name;
}
void LoggingProperties::setProgramName(std::string_view name) { NAME = name; }
void LoggingProperties::setLogFile(std::string_view file) { FILE = file; }
void LoggingProperties::setPrinting(int state) { PRINT = state; }
} // namespace Helper

246
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/*
Copyright 2025 Yağız Zengin
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.
*/
#include <string>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <fcntl.h>
#include <dirent.h>
#include <limits.h>
#include <unistd.h>
#include <sys/stat.h>
#include <libhelper/lib.hpp>
static FILE* open_file(const std::string_view file, const char* mode)
{
FILE* fp = fopen(file.data(), mode);
if (fp == nullptr) {
throw Helper::Error("Cannot open %s: %s", file.data(), strerror(errno));
return fp;
}
return fp;
}
namespace Helper {
bool writeFile(const std::string_view file, const std::string_view text)
{
FILE* fp = open_file(file, "a");
if (fp == nullptr) return false;
fprintf(fp, "%s", text.data());
fclose(fp);
return true;
}
std::optional<std::string> readFile(const std::string_view file)
{
FILE* fp = open_file(file, "r");
if (fp == nullptr) return std::nullopt;
char buffer[1024];
std::string str;
while (fgets(buffer, sizeof(buffer), fp)) str += buffer;
fclose(fp);
return str;
}
bool copyFile(const std::string_view file, const std::string_view dest)
{
int src_fd = open(file.data(), O_RDONLY);
if (src_fd == - 1) {
throw Error("Cannot open %s: %s", file.data(), strerror(errno));
return false;
}
int dst_fd = open(dest.data(), O_WRONLY | O_CREAT | O_TRUNC, DEFAULT_FILE_PERMS);
if (dst_fd == - 1) {
throw Error("Cannot create/open %s: %s", dest.data(), strerror(errno));
return false;
}
char buffer[512];
ssize_t br;
while ((br = read(src_fd, buffer, 512)) > 0) {
ssize_t bw = write(dst_fd, buffer, br);
if (bw != br) {
throw Error("Cannot write %s: %s", dest.data(), strerror(errno));
close(src_fd);
close(dst_fd);
return false;
}
}
close(src_fd);
close(dst_fd);
if (br == -1) {
throw Error("Cannot read %s: %s", file.data(), strerror(errno));
return false;
}
return true;
}
bool makeDirectory(const std::string_view path)
{
if (isExists(path)) return false;
return (mkdir(path.data(), DEFAULT_DIR_PERMS) == 0) ? true : false;
}
bool makeRecursiveDirectory(const std::string_view paths)
{
char tmp[PATH_MAX], *p;
size_t len;
snprintf(tmp, sizeof(tmp), "%s", paths.data());
len = strlen(tmp);
if (tmp[len - 1] == '/') tmp[len - 1] = '\0';
for (p = tmp + 1; *p; p++) {
if (*p == '/') {
*p = '\0';
if (access(tmp, F_OK) != 0) {
if (mkdir(tmp, DEFAULT_DIR_PERMS) != 0
&& errno != EEXIST) {
throw Error("Cannot create directory: %s: %s", tmp, strerror(errno));
return false;
}
}
*p = '/';
}
}
if (access(tmp, F_OK) != 0) {
if (mkdir(tmp, DEFAULT_DIR_PERMS) != 0 && errno != EEXIST) {
throw Error("Cannot create directory: %s: %s", tmp, strerror(errno));
return false;
}
}
return true;
}
bool createFile(const std::string_view path)
{
if (isExists(path)) {
throw Error("%s: is exists", path.data());
return false;
}
int fd = open(path.data(), O_RDONLY | O_CREAT, DEFAULT_FILE_PERMS);
if (fd == -1) {
throw Error("Cannot create %s: %s", path.data(), strerror(errno));
return false;
}
close(fd);
return true;
}
bool createSymlink(const std::string_view entry1, const std::string_view entry2)
{
int ret = symlink(entry1.data(), entry2.data());
if (ret != 0)
throw Error("Cannot symlink %s: %s", entry2.data(), strerror(errno));
return (ret == 0);
}
bool eraseEntry(const std::string_view entry)
{
int ret = remove(entry.data());
if (ret != 0)
throw Error("Cannot remove %s: %s", entry.data(), strerror(errno));
return (ret == 0);
}
bool eraseDirectoryRecursive(const std::string_view directory)
{
struct stat buf;
struct dirent *entry;
DIR *dir = opendir(directory.data());
if (dir == nullptr) {
throw Error("Cannot open directory %s: %s", directory.data(), strerror(errno));
return false;
}
while ((entry = readdir(dir)) != NULL) {
char fullpath[PATH_MAX];
if (strcmp(entry->d_name, ".") == 0
|| strcmp(entry->d_name, "..") == 0)
continue;
snprintf(fullpath, sizeof(fullpath), "%s/%s", directory.data(), entry->d_name);
if (lstat(fullpath, &buf) == -1) {
throw Error("Cannot stat %s: %s", fullpath, strerror(errno));
closedir(dir);
return false;
}
if (S_ISDIR(buf.st_mode)) {
if (!eraseDirectoryRecursive(fullpath)) {
closedir(dir);
return false;
}
} else {
if (unlink(fullpath) == -1) {
throw Error("Cannot unlink %s: %s", fullpath, strerror(errno));
closedir(dir);
return false;
}
}
}
closedir(dir);
if (rmdir(directory.data()) == -1) {
throw Error("Cannot remove directory %s: %s", directory.data(), strerror(errno));
return false;
}
return true;
}
std::string_view readSymlink(const std::string_view entry)
{
char target[PATH_MAX];
ssize_t len = readlink(entry.data(), target, (sizeof(target) - 1));
if (len == -1) {
throw Error("Cannot read symlink %s: %s", entry.data(), strerror(errno));
return entry;
}
target[len] = '\0';
return target;
}
size_t fileSize(const std::string_view file)
{
struct stat st;
if (stat(file.data(), &st) != 0) return false;
return static_cast<size_t>(st.st_size);
}
} // namespace Helper

54
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/*
Copyright 2025 Yağız Zengin
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.
*/
#include <fstream>
#include <vector>
#include <string>
#include <iostream>
#include <optional>
#include <picosha2.h>
#include <sys/stat.h>
#include <libhelper/lib.hpp>
namespace Helper {
std::optional<std::string_view> sha256Of(const std::string_view path)
{
if (!fileIsExists(path)) {
throw Error("Is not exists or not file: %s", path.data());
return std::nullopt;
}
std::ifstream file(path, std::ios::binary);
if (!file) {
throw Error("Cannot open file: %s", path.data());
return std::nullopt;
}
std::vector<unsigned char> hash(picosha2::k_digest_size);
picosha2::hash256(path, hash.begin(), hash.end());
return picosha2::bytes_to_hex_string(hash.begin(), hash.end());
}
bool sha256Compare(const std::string_view file1, const std::string_view file2)
{
auto f1 = sha256Of(file1);
auto f2 = sha256Of(file2);
if (f1->empty() || f2->empty()) return false;
return (*f1 == *f2);
}
} // namespace Helper

140
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/*
Copyright 2025 Yağız Zengin
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.
*/
#include <iostream>
#include <memory>
#include <string>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <time.h>
#include <libgen.h>
#include <libhelper/lib.hpp>
namespace Helper {
bool runCommand(const std::string_view cmd)
{
return (system(cmd.data()) == 0) ? true : false;
}
bool confirmPropt(const std::string_view message)
{
char p;
printf("%s [ y / n ]: ", message.data());
std::cin >> p;
if (p == 'y' || p == 'Y') return true;
else if (p == 'n' || p == 'N') return false;
else {
printf("Unexpected answer: '%c'. Try again.\n", p);
return confirmPropt(message);
}
return false;
}
std::string currentWorkingDirectory()
{
char cwd[1024];
if (getcwd(cwd, sizeof(cwd)) == nullptr) return std::string();
return cwd;
}
std::string currentDate()
{
time_t t = time(nullptr);
struct tm *date = localtime(&t);
if (date)
return std::string(
std::to_string(date->tm_mday) + "/" +
std::to_string(date->tm_mon + 1) + "/" +
std::to_string(date->tm_year + 1900));
return "--/--/----";
}
std::string currentTime()
{
time_t t = time(nullptr);
struct tm *date = localtime(&t);
if (date)
return std::string(
std::to_string(date->tm_hour) + ":" +
std::to_string(date->tm_min) + ":" +
std::to_string(date->tm_sec));
return "--:--:--";
}
std::string runCommandWithOutput(const std::string_view cmd)
{
std::unique_ptr<FILE, decltype(&pclose)> pipe(popen(cmd.data(), "r"), pclose);
if (!pipe) {
throw Error("Cannot run command: %s", cmd.data());
return {};
}
std::string end;
char buffer[1024];
while (fgets(buffer, sizeof(buffer), pipe.get()) != nullptr) end += buffer;
return end;
}
std::string pathJoin(std::string base, std::string relative)
{
if (base.back() != '/') base += '/';
if (relative[0] == '/') relative.erase(0, 1);
base += relative;
return base;
}
std::string pathBasename(const std::string_view entry)
{
if (!isExists(entry)) {
throw Error("No such file or directory: %s", entry.data());
return {};
}
char* base = basename((char*)entry.data());
return (base == nullptr) ? std::string() : std::string(base);
}
std::string pathDirname(const std::string_view entry)
{
if (!isExists(entry)) {
throw Error("No such file or directory: %s", entry.data());
return {};
}
char* base = dirname((char*)entry.data());
return (base == nullptr) ? std::string() : std::string(base);
}
std::string getLibVersion()
{
return std::string(
std::to_string(LIBHELPER_MAJOR) + "."
+ std::to_string(LIBHELPER_MINOR) + "."
+ std::to_string(LIBHELPER_PATCH)
);
}
} // namespace Helper

101
srclib/libhelper/tests/test.cpp Normal file
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/*
Copyright 2025 Yağız Zengin
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 PROGRAM_NAME "helper_test"
#include <iostream>
#include <libhelper/lib.hpp>
char* TEST_DIR = nullptr;
std::string test_path(const char* file)
{
std::string end = std::string(TEST_DIR) + "/" + file;
return end;
}
int main(int argc, char** argv)
{
if (argc < 2) return 2;
else TEST_DIR = argv[1];
try {
std::cout << "Has super user?; " << std::boolalpha << Helper::hasSuperUser() << std::endl;
std::cout << "file.txt is exists?; " << std::boolalpha << Helper::isExists(test_path("file.txt")) << std::endl;
std::cout << "'file.txt' file is exists?; " << std::boolalpha << Helper::fileIsExists(test_path("file")) << std::endl;
std::cout << "'dir' directory is exists?; " << std::boolalpha << Helper::directoryIsExists(test_path("dir")) << std::endl;
std::cout << "'linkdir' is link?; " << std::boolalpha << Helper::isLink(test_path("linkdir")) << std::endl;
std::cout << "'linkdir' is symlink?; " << std::boolalpha << Helper::isSymbolicLink(test_path("linkdir")) << std::endl;
std::cout << "'linkdir' is hardlink?; " << std::boolalpha << Helper::isHardLink(test_path("linkdir")) << std::endl;
std::cout << "'linkdir' is symlink to 'dir'?; " << std::boolalpha << Helper::areLinked(test_path("linkdir"), test_path("dir")) << std::endl;
if (!Helper::writeFile("file.txt", "hello world"))
throw Helper::Error("Cannor write \"hello world\" in 'file.txt'");
else
std::cout << "file.txt writed." << std::endl;
auto content = Helper::readFile("file.txt");
if (!content)
throw Helper::Error("Cannot read 'file.txt'");
else
std::cout << "'file.txt': " << *content << std::endl;
std::cout << "Making directory 'dir2': " << std::boolalpha << Helper::makeDirectory(test_path("dir2")) << std::endl;
std::cout << "Making recursive directories 'dir3/x/y': " << std::boolalpha << Helper::makeRecursiveDirectory(test_path("dir3/x/y")) << std::endl;
std::cout << "Create 'file2.txt': " << std::boolalpha << Helper::createFile(test_path("file2.txt")) << std::endl;
std::cout << "Create symlink 'file2.txt' to 'file2lnk.txt': " << std::boolalpha << Helper::createSymlink(test_path("file2.txt"), test_path("file2lnk.txt")) << std::endl;
std::cout << "Size of 'file2.txt': " << Helper::fileSize(test_path("file2.txt")) << std::endl;
std::cout << "Erasing 'file.txt': " << std::boolalpha << Helper::eraseEntry(test_path("file.txt")) << std::endl;
std::cout << "Erasing 'dir2': " << std::boolalpha << Helper::eraseEntry(test_path("dir2")) << std::endl;
std::cout << "Read link of 'file2lnk.txt': " << Helper::readSymlink(test_path("file2lnk.txt")) << std::endl;
auto sha256 = Helper::sha256Of(test_path("file2.txt"));
if (!sha256)
throw Helper::Error("Cannot get sha256 of 'file2.txt'");
else
std::cout << "SHA256 of 'file2.txt': " << *sha256 << std::endl;
std::cout << "'file2.txt' and 'file2lnk.txt' same? (SHA256): " << std::boolalpha << Helper::sha256Compare(test_path("file2.txt"), test_path("file2lnk.txt")) << std::endl;
std::cout << "Copy 'file2.txt' as 'file2cpy.txt': " << std::boolalpha << Helper::copyFile(test_path("file2.txt"), test_path("file2cpy.txt")) << std::endl;
std::cout << "Run command: 'ls': " << std::boolalpha << Helper::runCommand("ls") << std::endl;
std::cout << "Spawn confirm propt..." << std::endl;
bool p = Helper::confirmPropt("Please answer");
std::cout << "Result of confirm propt: " << std::boolalpha << p << std::endl;
std::cout << "Working directory: " << Helper::currentWorkingDirectory() << std::endl;
std::cout << "Current date: " << Helper::currentDate() << std::endl;
std::cout << "Current time: " << Helper::currentTime() << std::endl;
std::cout << "Output of 'ls' command: " << Helper::runCommandWithOutput("ls") << std::endl;
std::cout << "Basename of " << test_path("file2.txt") << ": " << Helper::pathBasename(test_path("file2.txt")) << std::endl;
std::cout << "Dirname of " << test_path("file2.txt") << ": " << Helper::pathDirname(test_path("file2.txt")) << std::endl;
std::cout << "pathJoin() test 1: " << Helper::pathJoin("mydir", "dir2") << std::endl;
std::cout << "pathJoin() test 2: " << Helper::pathJoin("mydir/", "dir2") << std::endl;
std::cout << "pathJoin() test 3: " << Helper::pathJoin("mydir/", "/dir2") << std::endl;
std::cout << "pathJoin() test 4: " << Helper::pathJoin("mydir", "/dir2") << std::endl;
LOG(INFO) << "Info message" << std::endl;
LOG(WARNING) << "Warning message" << std::endl;
LOG(ERROR) << "Error message" << std::endl;
LOG(ABORT) << "Abort message" << std::endl;
} catch (Helper::Error& err) {
std::cout << err.what() << std::endl;
return 1;
}
return 0;
}

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srclib/libhelper/tests/test.sh Normal file
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#!/usr/bin/bash
#
# Copyright 2025 Yağız Zengin
#
# 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.
#
set -e
if [ -z $1 ]; then echo "$0: Provide test path!"; exit 1; fi
if [ ! -d "$1/dir" ]; then mkdir $1/dir; fi
touch "$1/file.txt"
ln -s $1/dir $1/linkdir &>/dev/null