/* * Copyright (C) 2004-2020 Savoir-faire Linux Inc. * Copyright (C) 2010 Michael Kerrisk * Copyright (C) 2007-2009 Rémi Denis-Courmont * * Author: Rafaël Carré <rafael.carre@savoirfairelinux.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "logger.h" #include "fileutils.h" #include "archiver.h" #include "compiler_intrinsics.h" #include <opendht/crypto.h> #ifdef RING_UWP #include <io.h> // for access and close #include "ring_signal.h" #endif #ifdef __APPLE__ #include <TargetConditionals.h> #endif #if defined(__ANDROID__) || (defined(TARGET_OS_IOS) && TARGET_OS_IOS) #include "client/ring_signal.h" #endif #ifdef _WIN32 #include <windows.h> #include "string_utils.h" #endif #include <sys/types.h> #include <sys/stat.h> #ifndef _MSC_VER #include <libgen.h> #endif #ifdef _MSC_VER #include "windirent.h" #else #include <dirent.h> #endif #include <signal.h> #include <unistd.h> #include <fcntl.h> #ifndef _WIN32 #include <pwd.h> #else #include <shlobj.h> #define NAME_MAX 255 #endif #if !defined __ANDROID__ && !defined _WIN32 # include <wordexp.h> #endif #include <sstream> #include <fstream> #include <iostream> #include <stdexcept> #include <limits> #include <cstdlib> #include <cstring> #include <cerrno> #include <cstddef> #include <ciso646> namespace jami { namespace fileutils { // returns true if directory exists bool check_dir(const char *path, mode_t UNUSED dirmode, mode_t parentmode) { DIR *dir = opendir(path); if (!dir) { // doesn't exist if (not recursive_mkdir(path, parentmode)) { perror(path); return false; } #ifndef _WIN32 if (chmod(path, dirmode) < 0) { JAMI_ERR("fileutils::check_dir(): chmod() failed on '%s', %s", path, strerror(errno)); return false; } #endif } else closedir(dir); return true; } #ifndef _WIN32 /* Lock a file region */ static int lockReg(int fd, int cmd, int type, int whence, int start, off_t len) { struct flock fl; fl.l_type = type; fl.l_whence = whence; fl.l_start = start; fl.l_len = len; return fcntl(fd, cmd, &fl); } static int /* Lock a file region using nonblocking F_SETLK */ lockRegion(int fd, int type, int whence, int start, int len) { return lockReg(fd, F_SETLK, type, whence, start, len); } FileHandle create_pidfile() { const std::string name(get_home_dir() + DIR_SEPARATOR_STR PIDFILE); FileHandle f(name); char buf[100]; f.fd = open(f.name.c_str(), O_RDWR | O_CREAT, S_IRUSR | S_IWUSR); if (f.fd == -1) { JAMI_ERR("Could not open PID file %s", f.name.c_str()); return f; } if (lockRegion(f.fd, F_WRLCK, SEEK_SET, 0, 0) == -1) { if (errno == EAGAIN or errno == EACCES) JAMI_ERR("PID file '%s' is locked; probably " "'%s' is already running", f.name.c_str(), PACKAGE_NAME); else JAMI_ERR("Unable to lock PID file '%s'", f.name.c_str()); close(f.fd); f.fd = -1; return f; } if (ftruncate(f.fd, 0) == -1) { JAMI_ERR("Could not truncate PID file '%s'", f.name.c_str()); close(f.fd); f.fd = -1; return f; } snprintf(buf, sizeof(buf), "%ld\n", (long) getpid()); const int buf_strlen = strlen(buf); if (write(f.fd, buf, buf_strlen) != buf_strlen) { JAMI_ERR("Problem writing to PID file '%s'", f.name.c_str()); close(f.fd); f.fd = -1; return f; } return f; } #endif // !_WIN32 std::string expand_path(const std::string &path) { #if defined __ANDROID__ || defined _MSC_VER || defined WIN32 || defined __APPLE__ JAMI_ERR("Path expansion not implemented, returning original"); return path; #else std::string result; wordexp_t p; int ret = wordexp(path.c_str(), &p, 0); switch (ret) { case WRDE_BADCHAR: JAMI_ERR("Illegal occurrence of newline or one of |, &, ;, <, >, " "(, ), {, }."); return result; case WRDE_BADVAL: JAMI_ERR("An undefined shell variable was referenced"); return result; case WRDE_CMDSUB: JAMI_ERR("Command substitution occurred"); return result; case WRDE_SYNTAX: JAMI_ERR("Shell syntax error"); return result; case WRDE_NOSPACE: JAMI_ERR("Out of memory."); // This is the only error where we must call wordfree break; default: if (p.we_wordc > 0) result = std::string(p.we_wordv[0]); break; } wordfree(&p); return result; #endif } std::map<std::string, std::mutex> fileLocks {}; std::mutex fileLockLock {}; std::mutex& getFileLock(const std::string& path) { std::lock_guard<std::mutex> l(fileLockLock); return fileLocks[path]; } bool isFile(const std::string& path, bool resolveSymlink) { if (path.empty()) return false; #ifdef _WIN32 if (resolveSymlink) { struct _stat64i32 s; if (_wstat(jami::to_wstring(path).c_str(), &s) == 0) return S_ISREG(s.st_mode); } else { DWORD attr = GetFileAttributes(jami::to_wstring(path).c_str()); if ((attr != INVALID_FILE_ATTRIBUTES) && !(attr & FILE_ATTRIBUTE_DIRECTORY) && !(attr & FILE_ATTRIBUTE_REPARSE_POINT)) return true; } #else if (resolveSymlink) { struct stat s; if (stat(path.c_str(), &s) == 0) return S_ISREG(s.st_mode); } else { struct stat s; if (lstat(path.c_str(), &s) == 0) return S_ISREG(s.st_mode); } #endif return false; } bool isDirectory(const std::string& path) { struct stat s; if (stat(path.c_str(), &s) == 0) return s.st_mode & S_IFDIR; return false; } bool isDirectoryWritable(const std::string &directory) { return accessFile(directory, W_OK) == 0; } bool isSymLink(const std::string& path) { #ifndef _WIN32 struct stat s; if (lstat(path.c_str(), &s) == 0) return S_ISLNK(s.st_mode); #elif !defined(_MSC_VER) DWORD attr = GetFileAttributes(jami::to_wstring(path).c_str()); if (attr & FILE_ATTRIBUTE_REPARSE_POINT) return true; #endif return false; } std::chrono::system_clock::time_point writeTime(const std::string& path) { #ifndef _WIN32 struct stat s; auto ret = stat(path.c_str(), &s); if (ret) throw std::runtime_error("Can't check write time for: " + path); return std::chrono::system_clock::from_time_t(s.st_mtime); #else #if RING_UWP _CREATEFILE2_EXTENDED_PARAMETERS ext_params = { 0 }; ext_params.dwSize = sizeof(CREATEFILE2_EXTENDED_PARAMETERS); ext_params.dwFileAttributes = FILE_ATTRIBUTE_NORMAL; ext_params.dwFileFlags = FILE_FLAG_NO_BUFFERING; ext_params.dwSecurityQosFlags = SECURITY_ANONYMOUS; ext_params.lpSecurityAttributes = nullptr; ext_params.hTemplateFile = nullptr; HANDLE h = CreateFile2(jami::to_wstring(path).c_str(), GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, &ext_params); #elif _WIN32 HANDLE h = CreateFileW(jami::to_wstring(path).c_str(), GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, nullptr); #endif if (h == INVALID_HANDLE_VALUE) throw std::runtime_error("Can't open: " + path); FILETIME lastWriteTime; if (!GetFileTime(h, nullptr, nullptr, &lastWriteTime)) throw std::runtime_error("Can't check write time for: " + path); CloseHandle(h); SYSTEMTIME sTime; if (!FileTimeToSystemTime(&lastWriteTime, &sTime)) throw std::runtime_error("Can't check write time for: " + path); struct tm tm {}; tm.tm_year = sTime.wYear - 1900; tm.tm_mon = sTime.wMonth - 1; tm.tm_mday = sTime.wDay; tm.tm_hour = sTime.wHour; tm.tm_min = sTime.wMinute; tm.tm_sec = sTime.wSecond; tm.tm_isdst = -1; return std::chrono::system_clock::from_time_t(mktime(&tm)); #endif } bool isPathRelative(const std::string& path) { #ifndef _WIN32 return not path.empty() and not (path[0] == '/'); #else return not path.empty() and path.find(":") == std::string::npos; #endif } std::string getCleanPath(const std::string& base, const std::string& path) { if (base.empty() or path.size() < base.size()) return path; auto base_sep = base + DIR_SEPARATOR_STR; if (path.compare(0, base_sep.size(), base_sep) == 0) return path.substr(base_sep.size()); else return path; } std::string getFullPath(const std::string& base, const std::string& path) { bool isRelative {not base.empty() and isPathRelative(path)}; return isRelative ? base + DIR_SEPARATOR_STR + path : path; } std::vector<uint8_t> loadFile(const std::string& path, const std::string& default_dir) { std::vector<uint8_t> buffer; std::ifstream file = ifstream(getFullPath(default_dir, path), std::ios::binary); if (!file) throw std::runtime_error("Can't read file: "+path); file.seekg(0, std::ios::end); auto size = file.tellg(); if (size > std::numeric_limits<unsigned>::max()) throw std::runtime_error("File is too big: "+path); buffer.resize(size); file.seekg(0, std::ios::beg); if (!file.read((char*)buffer.data(), size)) throw std::runtime_error("Can't load file: "+path); return buffer; } std::string loadTextFile(const std::string& path, const std::string& default_dir) { std::string buffer; std::ifstream file = ifstream(getFullPath(default_dir, path)); if (!file) throw std::runtime_error("Can't read file: "+path); file.seekg(0, std::ios::end); auto size = file.tellg(); if (size > std::numeric_limits<unsigned>::max()) throw std::runtime_error("File is too big: "+path); buffer.resize(size); file.seekg(0, std::ios::beg); if (!file.read((char*)buffer.data(), size)) throw std::runtime_error("Can't load file: "+path); return buffer; } void saveFile(const std::string& path, const uint8_t* data, size_t data_size, mode_t UNUSED mode) { std::ofstream file = fileutils::ofstream(path, std::ios::trunc | std::ios::binary); if (!file.is_open()) { JAMI_ERR("Could not write data to %s", path.c_str()); return; } file.write((char*)data, data_size); #ifndef _WIN32 if (chmod(path.c_str(), mode) < 0) JAMI_WARN("fileutils::saveFile(): chmod() failed on '%s', %s", path.c_str(), strerror(errno)); #endif } std::vector<uint8_t> loadCacheFile(const std::string& path, std::chrono::system_clock::duration maxAge) { // writeTime throws exception if file doesn't exist auto duration = std::chrono::system_clock::now() - writeTime(path); if (duration > maxAge) throw std::runtime_error("file too old"); JAMI_DBG("Loading cache file '%.*s'", (int)path.size(), path.c_str()); return loadFile(path); } std::string loadCacheTextFile(const std::string& path, std::chrono::system_clock::duration maxAge) { // writeTime throws exception if file doesn't exist auto duration = std::chrono::system_clock::now() - writeTime(path); if (duration > maxAge) throw std::runtime_error("file too old"); JAMI_DBG("Loading cache file '%.*s'", (int)path.size(), path.c_str()); return loadTextFile(path); } static size_t dirent_buf_size(UNUSED DIR* dirp) { long name_max; #if defined(HAVE_FPATHCONF) && defined(HAVE_DIRFD) && defined(_PC_NAME_MAX) name_max = fpathconf(dirfd(dirp), _PC_NAME_MAX); if (name_max == -1) #if defined(NAME_MAX) name_max = (NAME_MAX > 255) ? NAME_MAX : 255; #else return (size_t)(-1); #endif #else #if defined(NAME_MAX) name_max = (NAME_MAX > 255) ? NAME_MAX : 255; #else #error "buffer size for readdir_r cannot be determined" #endif #endif size_t name_end = (size_t) offsetof(struct dirent, d_name) + name_max + 1; return name_end > sizeof(struct dirent) ? name_end : sizeof(struct dirent); } std::vector<std::string> readDirectory(const std::string& dir) { DIR *dp = opendir(dir.c_str()); if (!dp) return {}; size_t size = dirent_buf_size(dp); if (size == (size_t)(-1)) return {}; std::vector<uint8_t> buf(size); dirent* entry; std::vector<std::string> files; #ifndef _WIN32 while (!readdir_r(dp, reinterpret_cast<dirent*>(buf.data()), &entry) && entry) { #else while ((entry = readdir(dp)) != nullptr) { #endif std::string fname {entry->d_name}; if (fname == "." || fname == "..") continue; files.emplace_back(std::move(fname)); } closedir(dp); return files; } std::vector<uint8_t> readArchive(const std::string& path, const std::string& pwd) { JAMI_DBG("Reading archive from %s", path.c_str()); std::vector<uint8_t> data; if (pwd.empty()) { data = archiver::decompressGzip(path); } else { // Read file try { data = loadFile(path); } catch (const std::exception& e) { JAMI_ERR("Error loading archive: %s", e.what()); throw e; } // Decrypt try { data = archiver::decompress(dht::crypto::aesDecrypt(data, pwd)); } catch (const std::exception& e) { JAMI_ERR("Error decrypting archive: %s", e.what()); throw e; } } return data; } void writeArchive(const std::string& archive_str, const std::string& path, const std::string& password) { JAMI_DBG("Writing archive to %s", path.c_str()); if (not password.empty()) { // Encrypt using provided password std::vector<uint8_t> data = dht::crypto::aesEncrypt(archiver::compress(archive_str), password); // Write try { saveFile(path, data); } catch (const std::runtime_error& ex) { JAMI_ERR("Export failed: %s", ex.what()); return; } } else { JAMI_WARN("Unsecured archiving (no password)"); archiver::compressGzip(archive_str, path); } } FileHandle::FileHandle(const std::string &n) : fd(-1), name(n) {} FileHandle::~FileHandle() { // we will only delete the file if it was created by this process if (fd != -1) { close(fd); if (unlink(name.c_str()) == -1) JAMI_ERR("%s", strerror(errno)); } } #if defined(__ANDROID__) || defined(RING_UWP) || (defined(TARGET_OS_IOS) && TARGET_OS_IOS) static std::string files_path; static std::string cache_path; static std::string config_path; #else static char *program_dir = NULL; void set_program_dir(char *program_path) { #ifdef _MSC_VER _splitpath(program_path, nullptr, program_dir, nullptr, nullptr); #else program_dir = dirname(program_path); #endif } #endif std::string get_cache_dir(const char* pkg) { #ifdef RING_UWP std::vector<std::string> paths; emitSignal<DRing::ConfigurationSignal::GetAppDataPath>("", &paths); if (not paths.empty()) cache_path = paths[0] + DIR_SEPARATOR_STR + std::string(".cache"); if (fileutils::recursive_mkdir(cache_path.data(), 0700) != true) { // If directory creation failed if (errno != EEXIST) JAMI_DBG("Cannot create directory: %s!", cache_path.c_str()); } return cache_path; #else const std::string cache_home(XDG_CACHE_HOME); if (not cache_home.empty()) { return cache_home; } else { #endif #if defined(__ANDROID__) || (defined(TARGET_OS_IOS) && TARGET_OS_IOS) std::vector<std::string> paths; emitSignal<DRing::ConfigurationSignal::GetAppDataPath>("cache", &paths); if (not paths.empty()) cache_path = paths[0]; return cache_path; #elif defined(__APPLE__) return get_home_dir() + DIR_SEPARATOR_STR + "Library" + DIR_SEPARATOR_STR + "Caches" + DIR_SEPARATOR_STR + pkg; #else return get_home_dir() + DIR_SEPARATOR_STR + ".cache" + DIR_SEPARATOR_STR + pkg; #endif #ifndef RING_UWP } #endif } std::string get_cache_dir() { return get_cache_dir(PACKAGE); } std::string get_home_dir() { #if defined(__ANDROID__) || (defined(TARGET_OS_IOS) && TARGET_OS_IOS) std::vector<std::string> paths; emitSignal<DRing::ConfigurationSignal::GetAppDataPath>("files", &paths); if (not paths.empty()) files_path = paths[0]; return files_path; #elif defined RING_UWP std::vector<std::string> paths; emitSignal<DRing::ConfigurationSignal::GetAppDataPath>("", &paths); if (not paths.empty()) files_path = paths[0]; return files_path; #elif defined _WIN32 TCHAR path[MAX_PATH]; if (SUCCEEDED(SHGetFolderPath(nullptr, CSIDL_PROFILE, nullptr, 0, path))) { return jami::to_string(path); } return program_dir; #else // 1) try getting user's home directory from the environment const std::string home(PROTECTED_GETENV("HOME")); if (not home.empty()) return home; // 2) try getting it from getpwuid_r (i.e. /etc/passwd) const long max = sysconf(_SC_GETPW_R_SIZE_MAX); if (max != -1) { char buf[max]; struct passwd pwbuf, *pw; if (getpwuid_r(getuid(), &pwbuf, buf, sizeof(buf), &pw) == 0 and pw != NULL) return pw->pw_dir; } return ""; #endif } std::string get_data_dir(const char* pkg) { #if defined(__ANDROID__) || (defined(TARGET_OS_IOS) && TARGET_OS_IOS) std::vector<std::string> paths; emitSignal<DRing::ConfigurationSignal::GetAppDataPath>("files", &paths); if (not paths.empty()) files_path = paths[0]; return files_path; #elif defined(__APPLE__) return get_home_dir() + DIR_SEPARATOR_STR + "Library" + DIR_SEPARATOR_STR + "Application Support" + DIR_SEPARATOR_STR + pkg; #elif defined(_WIN32) if (!strcmp(pkg, "ring")) { return get_home_dir() + DIR_SEPARATOR_STR + ".local" + DIR_SEPARATOR_STR + "share" DIR_SEPARATOR_STR + pkg; } else{ return get_home_dir() + DIR_SEPARATOR_STR + "AppData" + DIR_SEPARATOR_STR + "Local" + DIR_SEPARATOR_STR + pkg; } #elif defined (RING_UWP) std::vector<std::string> paths; emitSignal<DRing::ConfigurationSignal::GetAppDataPath>("", &paths); if (not paths.empty()) files_path = paths[0] + DIR_SEPARATOR_STR + std::string(".data"); if (fileutils::recursive_mkdir(files_path.data(), 0700) != true) { // If directory creation failed if (errno != EEXIST) JAMI_DBG("Cannot create directory: %s!", files_path.c_str()); } return files_path; #else const std::string data_home(XDG_DATA_HOME); if (not data_home.empty()) return data_home + DIR_SEPARATOR_STR + pkg; // "If $XDG_DATA_HOME is either not set or empty, a default equal to // $HOME/.local/share should be used." return get_home_dir() + DIR_SEPARATOR_STR ".local" DIR_SEPARATOR_STR "share" DIR_SEPARATOR_STR + pkg; #endif } std::string get_data_dir() { return get_data_dir(PACKAGE); } std::string get_config_dir(const char* pkg) { #if defined(__ANDROID__) || (defined(TARGET_OS_IOS) && TARGET_OS_IOS) std::vector<std::string> paths; emitSignal<DRing::ConfigurationSignal::GetAppDataPath>("config", &paths); if (not paths.empty()) config_path = paths[0]; return config_path; #elif defined(RING_UWP) std::vector<std::string> paths; emitSignal<DRing::ConfigurationSignal::GetAppDataPath>("", &paths); if (not paths.empty()) config_path = paths[0] + DIR_SEPARATOR_STR + std::string(".config"); if (fileutils::recursive_mkdir(config_path.data(), 0700) != true) { // If directory creation failed if (errno != EEXIST) JAMI_DBG("Cannot create directory: %s!", config_path.c_str()); } return config_path; #else #if defined(__APPLE__) std::string configdir = fileutils::get_home_dir() + DIR_SEPARATOR_STR + "Library" + DIR_SEPARATOR_STR + "Application Support" + DIR_SEPARATOR_STR + pkg; #elif defined(_WIN32) std::string configdir; if (!strcmp(pkg, "ring")) { configdir = fileutils::get_home_dir() + DIR_SEPARATOR_STR + ".config" + DIR_SEPARATOR_STR + pkg; } else { configdir = fileutils::get_home_dir() + DIR_SEPARATOR_STR + "AppData" + DIR_SEPARATOR_STR + "Local" + DIR_SEPARATOR_STR + pkg; } #else std::string configdir = fileutils::get_home_dir() + DIR_SEPARATOR_STR + ".config" + DIR_SEPARATOR_STR + pkg; #endif const std::string xdg_env(XDG_CONFIG_HOME); if (not xdg_env.empty()) configdir = xdg_env + DIR_SEPARATOR_STR + pkg; if (fileutils::recursive_mkdir(configdir.data(), 0700) != true) { // If directory creation failed if (errno != EEXIST) JAMI_DBG("Cannot create directory: %s!", configdir.c_str()); } return configdir; #endif } std::string get_config_dir() { return get_config_dir(PACKAGE); } bool recursive_mkdir(const std::string& path, mode_t mode) { #ifndef _WIN32 if (mkdir(path.data(), mode) != 0) { #else if (_wmkdir(jami::to_wstring(path.data()).c_str()) != 0) { #endif if (errno == ENOENT) { recursive_mkdir(path.substr(0, path.find_last_of(DIR_SEPARATOR_CH)), mode); #ifndef _WIN32 if (mkdir(path.data(), mode) != 0) { #else if (_wmkdir(jami::to_wstring(path.data()).c_str()) != 0) { #endif JAMI_ERR("Could not create directory."); return false; } } } return true; } #ifdef _WIN32 bool eraseFile_win32(const std::string& path, bool dosync) { HANDLE h = CreateFileA(path.c_str(), GENERIC_WRITE, 0, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0); if (h == INVALID_HANDLE_VALUE) { JAMI_WARN("Can not open file %s for erasing.", path.c_str()); return false; } LARGE_INTEGER size; if (!GetFileSizeEx(h, &size)) { JAMI_WARN("Can not erase file %s: GetFileSizeEx() failed.", path.c_str()); CloseHandle(h); return false; } if (size.QuadPart == 0) { CloseHandle(h); return false; } uint64_t size_blocks = size.QuadPart / ERASE_BLOCK; if (size.QuadPart % ERASE_BLOCK) size_blocks++; char* buffer; try { buffer = new char[ERASE_BLOCK]; } catch (std::bad_alloc& ba) { JAMI_WARN("Can not allocate buffer for erasing %s.", path.c_str()); CloseHandle(h); return false; } memset(buffer, 0x00, ERASE_BLOCK); OVERLAPPED ovlp; if (size.QuadPart < (1024-42)) { // a small file can be stored in the MFT record ovlp.Offset = 0; ovlp.OffsetHigh = 0; WriteFile(h, buffer, (DWORD)size.QuadPart, 0, &ovlp); FlushFileBuffers(h); } for (uint64_t i = 0; i < size_blocks; i++) { uint64_t offset = i * ERASE_BLOCK; ovlp.Offset = offset & 0x00000000FFFFFFFF; ovlp.OffsetHigh = offset >> 32; WriteFile(h, buffer, ERASE_BLOCK, 0, &ovlp); } delete[] buffer; if (dosync) FlushFileBuffers(h); CloseHandle(h); return true; } #else bool eraseFile_posix(const std::string& path, bool dosync) { int fd = open(path.c_str(), O_WRONLY); if (fd == -1) { JAMI_WARN("Can not open file %s for erasing.", path.c_str()); return false; } struct stat st; if (fstat(fd, &st) == -1) { JAMI_WARN("Can not erase file %s: fstat() failed.", path.c_str()); close(fd); return false; } if (st.st_size == 0) { close(fd); return false; } uintmax_t size_blocks = st.st_size / ERASE_BLOCK; if (st.st_size % ERASE_BLOCK) size_blocks++; char* buffer; try { buffer = new char[ERASE_BLOCK]; } catch (std::bad_alloc& ba) { JAMI_WARN("Can not allocate buffer for erasing %s.", path.c_str()); close(fd); return false; } memset(buffer, 0x00, ERASE_BLOCK); for (uintmax_t i = 0; i < size_blocks; i++) { lseek(fd, i * ERASE_BLOCK, SEEK_SET); write(fd, buffer, ERASE_BLOCK); } delete[] buffer; if (dosync) fsync(fd); close(fd); return true; } #endif bool eraseFile(const std::string& path, bool dosync) { #ifdef _WIN32 return eraseFile_win32(path, dosync); #else return eraseFile_posix(path, dosync); #endif } int remove(const std::string& path, bool erase) { if (erase and isFile(path, false)) { eraseFile(path, true); } return std::remove(path.c_str()); } int removeAll(const std::string& path, bool erase) { if (path.empty()) return -1; if (isDirectory(path) and !isSymLink(path)) { auto dir = path; if (dir.back() != DIR_SEPARATOR_CH) dir += DIR_SEPARATOR_CH; for (auto& entry : fileutils::readDirectory(dir)) removeAll(dir + entry, erase); } return remove(path, erase); } void openStream(std::ifstream& file, const std::string& path, std::ios_base::openmode mode) { #ifdef _WIN32 file.open(jami::to_wstring(path), mode); #else file.open(path, mode); #endif } void openStream(std::ofstream& file, const std::string& path, std::ios_base::openmode mode) { #ifdef _WIN32 file.open(jami::to_wstring(path), mode); #else file.open(path, mode); #endif } std::ifstream ifstream(const std::string& path, std::ios_base::openmode mode) { #ifdef _WIN32 return std::ifstream(jami::to_wstring(path), mode); #else return std::ifstream(path, mode); #endif } std::ofstream ofstream(const std::string& path, std::ios_base::openmode mode) { #ifdef _WIN32 return std::ofstream(jami::to_wstring(path), mode); #else return std::ofstream(path, mode); #endif } int accessFile(const std::string& file, int mode) { #ifdef _WIN32 return _waccess(jami::to_wstring(file).c_str(), mode); #else return access(file.c_str(), mode); #endif } }} // namespace jami::fileutils