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//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//
// copyright : (C) 2008 by Eran Ifrah
// file name : fileutils.cpp
//
// -------------------------------------------------------------------------
// A
// _____ _ _ _ _
// / __ \ | | | | (_) |
// | / \/ ___ __| | ___| | _| |_ ___
// | | / _ \ / _ |/ _ \ | | | __/ _ )
// | \__/\ (_) | (_| | __/ |___| | || __/
// \____/\___/ \__,_|\___\_____/_|\__\___|
//
// F i l e
//
// 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 2 of the License, or
// (at your option) any later version.
//
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
#include "fileutils.h"
#include "StringUtils.h"
#include "asyncprocess.h"
#include "clConsoleBase.h"
#include "cl_config.h"
#include "cl_standard_paths.h"
#include "dirsaver.h"
#include "file_logger.h"
#include "macros.h"
#include "procutils.h"
#include "wxStringHash.h"
#include <algorithm>
#include <fstream>
#include <map>
#include <wx/ffile.h>
#include <wx/file.h>
#include <wx/log.h>
#include <wx/regex.h>
#include <wx/string.h>
#include <wx/uri.h>
#if wxUSE_GUI
#include <wx/msgdlg.h>
#endif
#include <string.h> // strerror
#include <wx/strconv.h>
#include <wx/tokenzr.h>
#include <wx/utils.h>
#ifdef __WXGTK__
#include <signal.h>
#include <sys/wait.h>
#include <unistd.h>
#endif
#include <cstring>
#include <functional>
#include <memory>
#include <wx/filename.h>
// internal helper method
namespace
{
bool write_file_content(const wxFileName& fn, const wxString& content, const wxMBConv& conv)
{
wxFile file(fn.GetFullPath(), wxFile::write);
if(file.IsOpened()) {
return file.Write(content, conv);
} else {
return false;
}
}
#ifndef __WXMSW__
const char ELF_STR[] = { 0x7f, 'E', 'L', 'F' };
#endif
} // namespace
void FileUtils::OpenFileExplorer(const wxString& path)
{
// Wrap the path with quotes if needed
wxString strPath = path;
if(strPath.Contains(" ")) {
strPath.Prepend("\"").Append("\"");
}
wxString cmd;
#ifdef __WXMSW__
cmd << "explorer ";
#elif defined(__WXGTK__)
cmd << "xdg-open ";
#elif defined(__WXMAC__)
cmd << "open ";
#endif
if(!cmd.IsEmpty()) {
cmd << strPath;
::wxExecute(cmd);
}
}
void FileUtils::OpenTerminal(const wxString& path, const wxString& user_command, bool pause_when_exit)
{
clConsoleBase::Ptr_t console = clConsoleBase::GetTerminal();
console->SetCommand(user_command, "");
console->SetWorkingDirectory(path);
console->SetWaitWhenDone(pause_when_exit);
console->Start();
}
bool FileUtils::WriteFileContent(const wxFileName& fn, const wxString& content, const wxMBConv& conv)
{
wxFileName tmpFile = CreateTempFileName(fn.GetPath(), "cltmp", fn.GetExt());
// make sure we erase the temp file
FileUtils::Deleter d(tmpFile);
if(!write_file_content(tmpFile, content, conv)) {
return false;
}
// rename tmp -> real file
return ::wxRenameFile(tmpFile.GetFullPath(), fn.GetFullPath(), true);
}
bool FileUtils::AppendFileContent(const wxFileName& fn, const wxString& content, const wxMBConv& conv)
{
wxFile fp(fn.GetFullPath(), wxFile::write_append);
if(!fp.IsOpened()) {
// failed to open the file
return false;
}
if(!fp.Write(content, conv)) {
clWARNING() << "Failed to append content to file:" << fn << endl;
}
fp.Close();
return true;
}
bool FileUtils::ReadFileContent(const wxFileName& fn, wxString& data, const wxMBConv& conv)
{
std::string rawdata;
if(!ReadFileContentRaw(fn, rawdata)) {
return false;
}
// convert
data = wxString(rawdata.c_str(), conv, rawdata.length());
if(data.IsEmpty() && !rawdata.empty()) {
// Conversion failed
data = wxString::From8BitData(rawdata.c_str(), rawdata.length());
}
return true;
}
bool FileUtils::ReadFileContentRaw(const wxFileName& fn, std::string& data)
{
// fopen() may return non NULL for directories too, so we have to test it ourselves
if(!fn.FileExists()) {
return false;
}
wxString filename = fn.GetFullPath();
data.clear();
const char* cfile = filename.mb_str(wxConvUTF8).data();
FILE* fp = fopen(cfile, "rb");
if(!fp) {
// Nothing to be done
return false;
}
// Get the file size
fseek(fp, 0, SEEK_END);
long fsize = ftell(fp);
fseek(fp, 0, SEEK_SET);
// Allocate buffer for the read
data.reserve(fsize + 1);
// use unique_ptr to auto release the buffer
std::unique_ptr<char, std::function<void(char*)>> buffer(new char[fsize + 1], [](char* d) { delete[] d; });
long bytes_read = fread(buffer.get(), 1, fsize, fp);
if(bytes_read != fsize) {
// failed to read
clERROR() << "Failed to read file content:" << fn << "." << strerror(errno);
fclose(fp);
return false;
}
buffer.get()[fsize] = 0;
fclose(fp);
// Close the handle
data = buffer.get();
return true;
}
void FileUtils::OpenFileExplorerAndSelect(const wxFileName& filename)
{
#ifdef __WXMSW__
wxString strPath = filename.GetFullPath();
if(strPath.Contains(" ")) {
strPath.Prepend("\"").Append("\"");
}
wxString cmd;
cmd << "explorer /select," << strPath;
::wxExecute(cmd);
#else
OpenFileExplorer(filename.GetPath());
#endif
}
void FileUtils::OSXOpenDebuggerTerminalAndGetTTY(const wxString& path, const wxString& appname, wxString& tty,
long& pid)
{
tty.Clear();
wxString command;
wxString tmpfile;
tmpfile << "/tmp/terminal.tty." << ::wxGetProcessId();
wxFileName helperScript("/tmp", "codelite-lldb-helper.sh");
wxString fileContent;
fileContent << "#!/bin/bash\n";
fileContent << "tty > " << tmpfile << "\n";
fileContent << "sleep 12345";
FileUtils::WriteFileContent(helperScript, fileContent);
int rc = system("chmod +x /tmp/codelite-lldb-helper.sh");
wxUnusedVar(rc);
command << "open -a " << appname << " /tmp/codelite-lldb-helper.sh";
clDEBUG() << "Executing: " << command;
long res = ::wxExecute(command);
if(res == 0) {
clWARNING() << "Failed to execute command:" << command;
return;
}
// Read the tty from the file, wait for it up to 10 seconds
wxFileName ttyFile(tmpfile);
pid = wxNOT_FOUND;
for(size_t i = 0; i < 10; ++i) {
if(!ttyFile.Exists()) {
::wxSleep(1);
continue;
}
ReadFileContent(ttyFile, tty);
tty.Trim().Trim(false);
// Remove the file
clRemoveFile(ttyFile.GetFullPath());
// Get the parent process ID (we want the parent PID and not
// the sleep command PID)
wxString psCommand;
psCommand << "ps -A -o ppid,command";
wxString psOutput = ProcUtils::SafeExecuteCommand(psCommand);
clDEBUG() << "ps command output:\n" << psOutput;
wxArrayString lines = ::wxStringTokenize(psOutput, "\n", wxTOKEN_STRTOK);
for(size_t u = 0; u < lines.GetCount(); ++u) {
wxString l = lines.Item(u);
l.Trim().Trim(false);
if(l.Contains("sleep") && l.Contains("12345")) {
// we got a match
clDEBUG() << "Got a match!";
wxString ppidString = l.BeforeFirst(' ');
ppidString.ToCLong(&pid);
break;
}
}
break;
}
clDEBUG() << "PID is:" << pid;
clDEBUG() << "TTY is:" << tty;
}
void FileUtils::OpenSSHTerminal(const wxString& sshClient, const wxString& connectString, const wxString& password,
int port)
{
clConsoleBase::Ptr_t console = clConsoleBase::GetTerminal();
wxString args;
#ifdef __WXMSW__
args << "-P " << port << " " << connectString;
if(!password.IsEmpty()) {
args << " -pw " << password;
}
console->SetExecExtraFlags(wxEXEC_HIDE_CONSOLE);
#else
args << "-p " << port << " " << connectString;
#endif
console->SetCommand(sshClient, args);
console->Start();
}
static void SplitMask(const wxString& maskString, wxArrayString& includeMask, wxArrayString& excludeMask)
{
wxString lcMask = maskString.Lower();
wxArrayString masks = ::wxStringTokenize(lcMask, ";,", wxTOKEN_STRTOK);
for(size_t i = 0; i < masks.size(); ++i) {
wxString& mask = masks.Item(i);
mask.Trim().Trim(false);
// exclude mask starts with "!" or "-"
if((mask[0] == '!') || (mask[0] == '-')) {
mask.Remove(0, 1);
excludeMask.Add(mask);
} else {
includeMask.Add(mask);
}
}
}
bool FileUtils::WildMatch(const wxString& mask, const wxFileName& filename)
{
wxArrayString incMasks;
wxArrayString excMasks;
SplitMask(mask, incMasks, excMasks);
if(incMasks.Index("*") != wxNOT_FOUND) {
// If one of the masks is plain "*" - we match everything
return true;
}
wxString lcFilename = filename.GetFullName().Lower();
// Try to the "exclude" masking first
for(size_t i = 0; i < excMasks.size(); ++i) {
const wxString& pattern = excMasks.Item(i);
if((!pattern.Contains("*") && lcFilename == pattern) ||
(pattern.Contains("*") && ::wxMatchWild(pattern, lcFilename))) {
// use exact match
return false;
}
}
for(size_t i = 0; i < incMasks.size(); ++i) {
const wxString& pattern = incMasks.Item(i);
if((!pattern.Contains("*") && lcFilename == pattern) ||
(pattern.Contains("*") && ::wxMatchWild(pattern, lcFilename))) {
// use exact match
return true;
}
}
return false;
}
bool FileUtils::WildMatch(const wxString& mask, const wxString& filename)
{
return WildMatch(mask, wxFileName(filename));
}
wxString FileUtils::DecodeURI(const wxString& uri)
{
static wxStringMap_t T = { { "%20", " " }, { "%21", "!" }, { "%23", "#" }, { "%24", "$" }, { "%26", "&" },
{ "%27", "'" }, { "%28", "(" }, { "%29", ")" }, { "%2A", "*" }, { "%2B", "+" },
{ "%2C", "," }, { "%3B", ";" }, { "%3D", "=" }, { "%3F", "?" }, { "%40", "@" },
{ "%5B", "[" }, { "%5D", "]" } };
wxString decodedString;
wxString escapeSeq;
int state = 0;
for(size_t i = 0; i < uri.size(); ++i) {
wxChar ch = uri[i];
switch(state) {
case 0: // Normal
switch(ch) {
case '%':
state = 1;
escapeSeq << ch;
break;
default:
decodedString << ch;
break;
}
break;
case 1: // Escaping mode
escapeSeq << ch;
if(escapeSeq.size() == 3) {
// Try to decode it
wxStringMap_t::iterator iter = T.find(escapeSeq);
if(iter != T.end()) {
decodedString << iter->second;
} else {
decodedString << escapeSeq;
}
state = 0;
escapeSeq.Clear();
}
break;
}
}
return decodedString;
}
wxString FileUtils::EncodeURI(const wxString& uri)
{
static std::unordered_map<int, wxString> sEncodeMap = {
{ (int)'!', "%21" }, { (int)'#', "%23" }, { (int)'$', "%24" }, { (int)'&', "%26" }, { (int)'\'', "%27" },
{ (int)'(', "%28" }, { (int)')', "%29" }, { (int)'*', "%2A" }, { (int)'+', "%2B" }, { (int)',', "%2C" },
{ (int)';', "%3B" }, { (int)'=', "%3D" }, { (int)'?', "%3F" }, { (int)'@', "%40" }, { (int)'[', "%5B" },
{ (int)']', "%5D" }, { (int)' ', "%20" }
};
wxString encoded;
for(size_t i = 0; i < uri.length(); ++i) {
wxChar ch = uri[i];
std::unordered_map<int, wxString>::iterator iter = sEncodeMap.find((int)ch);
if(iter != sEncodeMap.end()) {
encoded << iter->second;
} else {
encoded << ch;
}
}
return encoded;
}
bool FileUtils::FuzzyMatch(const wxString& needle, const wxString& haystack)
{
wxString word;
size_t offset = 0;
wxString lcHaystack = haystack.Lower();
while(NextWord(needle, offset, word, true)) {
if(!lcHaystack.Contains(word)) {
return false;
}
}
return true;
}
bool FileUtils::IsHidden(const wxString& filename)
{
#ifdef __WXMSW__
DWORD dwAttrs = GetFileAttributes(filename.c_str());
if(dwAttrs == INVALID_FILE_ATTRIBUTES) {
return false;
}
return (dwAttrs & FILE_ATTRIBUTE_HIDDEN) || (wxFileName(filename).GetFullName().StartsWith("."));
#else
// is it enough to test for file name?
wxFileName fn(filename);
return fn.GetFullName().StartsWith(".");
#endif
}
bool FileUtils::IsHidden(const wxFileName& filename) { return IsHidden(filename.GetFullPath()); }
bool FileUtils::WildMatch(const wxArrayString& masks, const wxString& filename)
{
if(masks.IsEmpty()) {
return false;
}
if(masks.Index("*") != wxNOT_FOUND) {
// If one of the masks is plain "*" - we match everything
return true;
}
for(size_t i = 0; i < masks.size(); ++i) {
const wxString& pattern = masks.Item(i);
if((!pattern.Contains("*") && filename == pattern) ||
(pattern.Contains("*") && ::wxMatchWild(pattern, filename))) {
// use exact match
return true;
}
}
return false;
}
bool FileUtils::SetFilePermissions(const wxFileName& filename, mode_t perm)
{
wxString strFileName = filename.GetFullPath();
return (::chmod(strFileName.mb_str(wxConvUTF8).data(), perm & 07777) != 0);
}
bool FileUtils::GetFilePermissions(const wxFileName& filename, mode_t& perm)
{
struct stat b;
wxString strFileName = filename.GetFullPath();
if(::stat(strFileName.mb_str(wxConvUTF8).data(), &b) == 0) {
perm = b.st_mode;
return true;
}
return false;
}
time_t FileUtils::GetFileModificationTime(const wxFileName& filename)
{
wxString file = filename.GetFullPath();
struct stat buff;
const wxCharBuffer cname = file.mb_str(wxConvUTF8);
if(stat(cname.data(), &buff) < 0) {
return 0;
}
return buff.st_mtime;
}
size_t FileUtils::GetFileSize(const wxFileName& filename)
{
struct stat b;
wxString file_name = filename.GetFullPath();
const char* cfile = file_name.mb_str(wxConvUTF8).data();
if(::stat(cfile, &b) == 0) {
return b.st_size;
} else {
clERROR() << "Failed to open file:" << file_name << "." << strerror(errno);
return 0;
}
}
wxString FileUtils::EscapeString(const wxString& str)
{
wxString modstr = str;
modstr.Replace(" ", "\\ ");
modstr.Replace("\"", "\\\"");
return modstr;
}
wxString FileUtils::GetOSXTerminalCommand(const wxString& command, const wxString& workingDirectory)
{
wxFileName script(clStandardPaths::Get().GetBinFolder(), "osx-terminal.sh");
wxString cmd;
cmd << EscapeString(script.GetFullPath()) << " \"";
if(!workingDirectory.IsEmpty()) {
cmd << "cd " << EscapeString(workingDirectory) << " && ";
}
cmd << EscapeString(command) << "\"";
clDEBUG() << "GetOSXTerminalCommand returned:" << cmd << clEndl;
return cmd;
}
wxString FileUtils::NormaliseName(const wxString& name)
{
static bool initialised = false;
static int invalidChars[256];
if(!initialised) {
memset(invalidChars, 0, sizeof(invalidChars));
std::vector<int> V = { '@', '-', '^', '%', '&', '$', '#', '@', '!', '(', ')',
'{', '}', '[', ']', '+', '=', ';', ',', '.', ' ' };
for(size_t i = 0; i < V.size(); ++i) {
invalidChars[V[i]] = 1;
}
initialised = true;
}
wxString normalisedName;
for(size_t i = 0; i < name.size(); ++i) {
if(invalidChars[name[i]]) {
// an invalid char was found
normalisedName << "_";
} else {
normalisedName << name[i];
}
}
return normalisedName;
}
bool FileUtils::NextWord(const wxString& str, size_t& offset, wxString& word, bool makeLower)
{
if(offset == str.size()) {
return false;
}
size_t start = wxString::npos;
word.Clear();
for(; offset < str.size(); ++offset) {
wxChar ch = str[offset];
bool isWhitespace = ((ch == ' ') || (ch == '\t'));
if(isWhitespace && (start != wxString::npos)) {
// we found a trailing whitespace
break;
} else if(isWhitespace && (start == wxString::npos)) {
// skip leading whitespace
continue;
} else if(start == wxString::npos) {
start = offset;
}
if(makeLower) {
ch = wxTolower(ch);
}
word << ch;
}
if((start != wxString::npos) && (offset > start)) {
return true;
}
return false;
}
size_t FileUtils::SplitWords(const wxString& str, wxStringSet_t& outputSet, bool makeLower)
{
size_t offset = 0;
wxString word;
outputSet.clear();
while(NextWord(str, offset, word, makeLower)) {
outputSet.insert(word);
}
return outputSet.size();
}
bool FileUtils::RemoveFile(const wxString& filename, const wxString& context)
{
LOG_IF_TRACE { clDEBUG1() << "Deleting file:" << filename << "(" << context << ")"; }
wxLogNull NOLOG;
return ::wxRemoveFile(filename);
}
unsigned int FileUtils::UTF8Length(const wchar_t* uptr, unsigned int tlen)
{
#define SURROGATE_LEAD_FIRST 0xD800
#define SURROGATE_TRAIL_FIRST 0xDC00
#define SURROGATE_TRAIL_LAST 0xDFFF
unsigned int len = 0;
for(unsigned int i = 0; i < tlen && uptr[i];) {
unsigned int uch = uptr[i];
if(uch < 0x80) {
len++;
} else if(uch < 0x800) {
len += 2;
} else if((uch >= SURROGATE_LEAD_FIRST) && (uch <= SURROGATE_TRAIL_LAST)) {
len += 4;
i++;
} else {
len += 3;
}
i++;
}
#undef SURROGATE_LEAD_FIRST
#undef SURROGATE_TRAIL_FIRST
#undef SURROGATE_TRAIL_LAST
return len;
}
// This is readlink on steroids: it also makes-absolute, and dereferences any symlinked dirs in the path
wxString FileUtils::RealPath(const wxString& filepath)
{
#if defined(__WXGTK__) || defined(__WXOSX__)
if(!filepath.empty()) {
#if defined(__FreeBSD__) || defined(__WXOSX__)
wxStructStat stbuff;
if((::wxLstat(filepath, &stbuff) != 0) || !S_ISLNK(stbuff.st_mode)) {
return filepath;
}
#endif
char* buf = realpath(filepath.mb_str(wxConvUTF8), NULL);
if(buf != NULL) {
wxString result(buf, wxConvUTF8);
free(buf);
return result;
}
}
#endif // defined(__WXGTK__) || defined(__WXOSX__)
return filepath;
}
void FileUtils::OpenBuiltInTerminal(const wxString& wd, const wxString& user_command, bool pause_when_exit)
{
wxString title(user_command);
wxFileName fnCodeliteTerminal(clStandardPaths::Get().GetExecutablePath());
fnCodeliteTerminal.SetFullName("codelite-terminal");
wxString newCommand;
newCommand << fnCodeliteTerminal.GetFullPath() << " --exit ";
if(pause_when_exit) {
newCommand << " --wait ";
}
if(wxDirExists(wd)) {
wxString workingDirectory = wd;
workingDirectory.Trim().Trim(false);
if(workingDirectory.Contains(" ") && !workingDirectory.StartsWith("\"")) {
workingDirectory.Prepend("\"").Append("\"");
}
newCommand << " --working-directory " << wd;
}
newCommand << " --cmd " << title;
::wxExecute(newCommand, wxEXEC_ASYNC);
}
std::string FileUtils::ToStdString(const wxString& str) { return StringUtils::ToStdString(str); }
bool FileUtils::ReadBufferFromFile(const wxFileName& fn, wxString& data, size_t bufferSize)
{
std::wifstream fin(fn.GetFullPath().ToStdString(), std::ios::binary);
if(fin.bad()) {
clERROR() << "Failed to open file:" << fn;
return false;
}
std::vector<wchar_t> buffer(bufferSize, 0);
if(!fin.eof()) {
fin.read(buffer.data(), buffer.size());
}
data.reserve(buffer.size());
data << std::wstring(buffer.begin(), buffer.begin() + buffer.size());
return true;
}
bool FileUtils::IsSymlink(const wxString& filename)
{
#ifdef __WXMSW__
DWORD dwAttrs = GetFileAttributesW(filename.c_str());
if(dwAttrs == INVALID_FILE_ATTRIBUTES) {
return false;
}
return dwAttrs & FILE_ATTRIBUTE_REPARSE_POINT;
#else
wxStructStat buff;
if(wxLstat(filename, &buff) != 0) {
return false;
}
return S_ISLNK(buff.st_mode);
#endif
}
bool FileUtils::IsDirectory(const wxString& filename)
{
#ifdef __WXMSW__
DWORD dwAttrs = GetFileAttributesW(filename.c_str());
if(dwAttrs == INVALID_FILE_ATTRIBUTES) {
return false;
}
return dwAttrs & FILE_ATTRIBUTE_DIRECTORY;
#else
wxStructStat buff;
if(wxLstat(filename, &buff) != 0) {
return false;
}
return S_ISDIR(buff.st_mode);
#endif
}
clEnvList_t FileUtils::CreateEnvironment(const wxString& envstr)
{
wxArrayString arr = ::wxStringTokenize(envstr, "\r\n", wxTOKEN_STRTOK);
clEnvList_t L;
for(wxString& line : arr) {
line.Trim().Trim(false);
if(line.Index('=') == wxString::npos) {
continue;
}
if(line.StartsWith("#")) {
continue;
}
wxString name = line.BeforeFirst('=');
wxString value = line.AfterFirst('=');
L.push_back({ name, value });
}
return L;
}
namespace
{
bool DoFindExe(const wxString& name, wxFileName& exepath, const wxArrayString& hint)
{
wxString path;
if(!::wxGetEnv("PATH", &path)) {
clWARNING() << "Could not read environment variable PATH" << clEndl;
return false;
}
wxArrayString mergedPaths = hint;
wxArrayString paths = ::wxStringTokenize(path, clPATH_SEPARATOR, wxTOKEN_STRTOK);
for(const auto& p : paths) {
mergedPaths.Add(p);
}
mergedPaths.swap(paths);
for(size_t i = 0; i < paths.size(); ++i) {
const wxString& curpath = paths.Item(i);
wxFileName fnPath(curpath, name);
if(fnPath.FileExists()) {
exepath = fnPath;
return true;
}
#ifdef __WXMSW__
wxFileName fullname("", name);
// on Windows, an executable can have a list of known extensions defined in the
// environment variable PATHEXT. Use this environment variable only if the user did not
// provide a fullname (name + ext)
wxArrayString exts;
if(fullname.GetExt().IsEmpty()) {
wxString pathext;
::wxGetEnv("PATHEXT", &pathext);
exts = ::wxStringTokenize(pathext, ";", wxTOKEN_STRTOK);
} else {
exts.Add(fullname.GetExt());
}
for(size_t j = 0; j < exts.size(); ++j) {
wxString ext = exts.Item(j).AfterFirst('.'); // remove the . from the extension
wxFileName fnFileWithExt(curpath, name);
fnFileWithExt.SetExt(ext);
if(fnFileWithExt.FileExists()) {
exepath = fnFileWithExt;
return true;
}
}
#endif
}
return false;
}
} // namespace
bool FileUtils::FindExe(const wxString& name, wxFileName& exepath, const wxArrayString& hint,
const wxArrayString& suffix_list)
{
wxArrayString possible_suffix;
possible_suffix.Add(wxEmptyString);
if(!suffix_list.empty()) {
possible_suffix.reserve(possible_suffix.size() + suffix_list.size());
possible_suffix.insert(possible_suffix.end(), suffix_list.begin(), suffix_list.end());
}
for(const wxString& suffix : possible_suffix) {
if(DoFindExe(name + suffix, exepath, hint)) {
return true;
}
}
return false;
}
wxFileName FileUtils::CreateTempFileName(const wxString& folder, const wxString& prefix, const wxString& ext)
{
static bool srandInit = false;
if(!srandInit) {
srand(time(nullptr));
srandInit = true;
}
static const char alphanum[] = "0123456789"
"abcdefghijklmnopqrstuvwxyz"
"ABCDEFGHIJKLMNOPQRSTUVWXYZ";
size_t N = sizeof(alphanum) - 1;
wxString full_name = prefix;
full_name << "-";
for(size_t i = 0; i < 8; ++i) {
size_t index = rand() / (RAND_MAX / N + 1);
full_name += alphanum[index];
}
full_name += "." + ext;
return wxFileName(folder, full_name);
}
size_t FileUtils::FindSimilar(const wxFileName& filename, const std::vector<wxString>& extensions,
std::vector<wxFileName>& vout)
{
wxFileName fn(filename);
vout.reserve(extensions.size());
for(const wxString& ext : extensions) {
fn.SetExt(ext);
if(fn.FileExists()) {
vout.emplace_back(fn);
}
}
return vout.size();
}
bool FileUtils::ParseURI(const wxString& uri, wxString& path, wxString& scheme, wxString& user, wxString& host,
wxString& port)
{
if(uri.StartsWith("file://")) {
path = uri.Mid(7);
scheme = "file://";
return true;
} else if(uri.StartsWith("ssh://")) {
// expected syntax:
// ssh://user@host:port:/path
scheme = "ssh://";
wxString remainder = uri.Mid(6);
user = remainder.BeforeFirst('@');
remainder = remainder.AfterFirst('@');
host = remainder.BeforeFirst(':');
remainder = remainder.AfterFirst(':');
// at this point we got:
// port:/path
// OR -
// /path
if(remainder.empty()) {
return true;
}
if(remainder[0] == '/') {
path = remainder;
} else {
port = remainder.BeforeFirst(':');
path = remainder.AfterFirst(':');
}
return true;
} else {
return false;
}
}
wxString FileUtils::FilePathToURI(const wxString& filepath)
{
if(filepath.StartsWith("file://")) {
return filepath;
} else {
wxString uri;
uri << "file://";
if(!filepath.StartsWith("/")) {
uri << "/";
}
wxString file_part = filepath;
file_part.Replace("\\", "/");
file_part = EncodeURI(file_part);
uri << file_part;
return uri;
}
}
wxString FileUtils::FilePathFromURI(const wxString& uri)
{
wxString rest;
if(uri.StartsWith("file://", &rest)) {
#ifdef __WXMSW__
// check if the file path starts with /C: (Windows drive)
wxRegEx re_windows_drive("/[a-z]{1}:", wxRE_DEFAULT | wxRE_ICASE);
if(re_windows_drive.IsValid() && re_windows_drive.Matches(rest)) {
rest.Remove(0, 1); // remove the leading slash
// since we know that his is a Windows style path
// make sure we are using backslashes
rest.Replace("/", "\\");
}
#endif
rest = DecodeURI(rest);
return rest;
} else {
return uri;
}
}
namespace
{
/* Number of bytes to read at once. */
constexpr size_t BUFLEN = (1 << 16);
uint_fast32_t const crctab[256] = {
0x00000000, 0x04c11db7, 0x09823b6e, 0x0d4326d9, 0x130476dc, 0x17c56b6b, 0x1a864db2, 0x1e475005, 0x2608edb8,
0x22c9f00f, 0x2f8ad6d6, 0x2b4bcb61, 0x350c9b64, 0x31cd86d3, 0x3c8ea00a, 0x384fbdbd, 0x4c11db70, 0x48d0c6c7,
0x4593e01e, 0x4152fda9, 0x5f15adac, 0x5bd4b01b, 0x569796c2, 0x52568b75, 0x6a1936c8, 0x6ed82b7f, 0x639b0da6,
0x675a1011, 0x791d4014, 0x7ddc5da3, 0x709f7b7a, 0x745e66cd, 0x9823b6e0, 0x9ce2ab57, 0x91a18d8e, 0x95609039,
0x8b27c03c, 0x8fe6dd8b, 0x82a5fb52, 0x8664e6e5, 0xbe2b5b58, 0xbaea46ef, 0xb7a96036, 0xb3687d81, 0xad2f2d84,
0xa9ee3033, 0xa4ad16ea, 0xa06c0b5d, 0xd4326d90, 0xd0f37027, 0xddb056fe, 0xd9714b49, 0xc7361b4c, 0xc3f706fb,
0xceb42022, 0xca753d95, 0xf23a8028, 0xf6fb9d9f, 0xfbb8bb46, 0xff79a6f1, 0xe13ef6f4, 0xe5ffeb43, 0xe8bccd9a,
0xec7dd02d, 0x34867077, 0x30476dc0, 0x3d044b19, 0x39c556ae, 0x278206ab, 0x23431b1c, 0x2e003dc5, 0x2ac12072,
0x128e9dcf, 0x164f8078, 0x1b0ca6a1, 0x1fcdbb16, 0x018aeb13, 0x054bf6a4, 0x0808d07d, 0x0cc9cdca, 0x7897ab07,
0x7c56b6b0, 0x71159069, 0x75d48dde, 0x6b93dddb, 0x6f52c06c, 0x6211e6b5, 0x66d0fb02, 0x5e9f46bf, 0x5a5e5b08,
0x571d7dd1, 0x53dc6066, 0x4d9b3063, 0x495a2dd4, 0x44190b0d, 0x40d816ba, 0xaca5c697, 0xa864db20, 0xa527fdf9,
0xa1e6e04e, 0xbfa1b04b, 0xbb60adfc, 0xb6238b25, 0xb2e29692, 0x8aad2b2f, 0x8e6c3698, 0x832f1041, 0x87ee0df6,
0x99a95df3, 0x9d684044, 0x902b669d, 0x94ea7b2a, 0xe0b41de7, 0xe4750050, 0xe9362689, 0xedf73b3e, 0xf3b06b3b,
0xf771768c, 0xfa325055, 0xfef34de2, 0xc6bcf05f, 0xc27dede8, 0xcf3ecb31, 0xcbffd686, 0xd5b88683, 0xd1799b34,
0xdc3abded, 0xd8fba05a, 0x690ce0ee, 0x6dcdfd59, 0x608edb80, 0x644fc637, 0x7a089632, 0x7ec98b85, 0x738aad5c,
0x774bb0eb, 0x4f040d56, 0x4bc510e1, 0x46863638, 0x42472b8f, 0x5c007b8a, 0x58c1663d, 0x558240e4, 0x51435d53,
0x251d3b9e, 0x21dc2629, 0x2c9f00f0, 0x285e1d47, 0x36194d42, 0x32d850f5, 0x3f9b762c, 0x3b5a6b9b, 0x0315d626,
0x07d4cb91, 0x0a97ed48, 0x0e56f0ff, 0x1011a0fa, 0x14d0bd4d, 0x19939b94, 0x1d528623, 0xf12f560e, 0xf5ee4bb9,
0xf8ad6d60, 0xfc6c70d7, 0xe22b20d2, 0xe6ea3d65, 0xeba91bbc, 0xef68060b, 0xd727bbb6, 0xd3e6a601, 0xdea580d8,
0xda649d6f, 0xc423cd6a, 0xc0e2d0dd, 0xcda1f604, 0xc960ebb3, 0xbd3e8d7e, 0xb9ff90c9, 0xb4bcb610, 0xb07daba7,
0xae3afba2, 0xaafbe615, 0xa7b8c0cc, 0xa379dd7b, 0x9b3660c6, 0x9ff77d71, 0x92b45ba8, 0x9675461f, 0x8832161a,
0x8cf30bad, 0x81b02d74, 0x857130c3, 0x5d8a9099, 0x594b8d2e, 0x5408abf7, 0x50c9b640, 0x4e8ee645, 0x4a4ffbf2,
0x470cdd2b, 0x43cdc09c, 0x7b827d21, 0x7f436096, 0x7200464f, 0x76c15bf8, 0x68860bfd, 0x6c47164a, 0x61043093,
0x65c52d24, 0x119b4be9, 0x155a565e, 0x18197087, 0x1cd86d30, 0x029f3d35, 0x065e2082, 0x0b1d065b, 0x0fdc1bec,
0x3793a651, 0x3352bbe6, 0x3e119d3f, 0x3ad08088, 0x2497d08d, 0x2056cd3a, 0x2d15ebe3, 0x29d4f654, 0xc5a92679,
0xc1683bce, 0xcc2b1d17, 0xc8ea00a0, 0xd6ad50a5, 0xd26c4d12, 0xdf2f6bcb, 0xdbee767c, 0xe3a1cbc1, 0xe760d676,
0xea23f0af, 0xeee2ed18, 0xf0a5bd1d, 0xf464a0aa, 0xf9278673, 0xfde69bc4, 0x89b8fd09, 0x8d79e0be, 0x803ac667,
0x84fbdbd0, 0x9abc8bd5, 0x9e7d9662, 0x933eb0bb, 0x97ffad0c, 0xafb010b1, 0xab710d06, 0xa6322bdf, 0xa2f33668,
0xbcb4666d, 0xb8757bda, 0xb5365d03, 0xb1f740b4
};
bool cksum(const std::string& file, size_t* checksum)
{
unsigned char buf[BUFLEN];
uint_fast32_t crc = 0;
size_t length = 0;
size_t bytes_read;
FILE* fp;
fp = fopen(file.c_str(), "rb");
if(fp == NULL) {
return false;
}
while((bytes_read = fread(buf, 1, BUFLEN, fp)) > 0) {
unsigned char* cp = buf;
length += bytes_read;
while(bytes_read--) {
crc = (crc << 8) ^ crctab[((crc >> 24) ^ *cp++) & 0xFF];
}
if(feof(fp)) {
break;
}
}
if(ferror(fp)) {
return false;
}
if(fclose(fp) == EOF) {
return false;
}
for(; length; length >>= 8) {
crc = (crc << 8) ^ crctab[((crc >> 24) ^ length) & 0xFF];
}
crc = ~crc & 0xFFFFFFFF;
*checksum = crc;
return true;
}
} // namespace
bool FileUtils::GetChecksum(const wxString& filepath, size_t* checksum)
{
return cksum(ToStdString(filepath), checksum);
}
bool FileUtils::IsBinaryExecutable(const wxString& filename)
{
#ifdef __WXMSW__
// check extension first
wxString extension = filename.AfterLast('.');
if(extension == "exe" || extension == "dll") {
return true;
}
// check the file itself
DWORD type;
return GetBinaryType(filename.c_str(), &type) == TRUE;
#else
// do ELF check by comparing the first 4 bytes of the file to the ELF magic string
char buffer[4];
FILE* fp = ::fopen(filename.mb_str(wxConvUTF8).data(), "rb");
if(!fp) {
return false;
}
int count = ::fread(buffer, sizeof(char), sizeof(buffer), fp);
::fclose(fp);
return (count == 4 && ::memcmp(buffer, ELF_STR, 4) == 0);
#endif
}
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