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/*
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 * Copyright (C) 2020, 2021 by Andreas Theofilu <andreas@theosys.at>
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; either version 3 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
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 */
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#include <string>
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#include <vector>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include "tvalidatefile.h"
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#include "terror.h"
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#include "tresources.h"
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using std::string;
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using std::vector;
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bool TValidateFile::isValidFile(const string& file)
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{
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    DECL_TRACER("TValidateFile::isValidFile(const string& file)");
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    struct stat buffer;
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    if (stat (file.c_str(), &buffer) != 0)
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    {
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        MSG_WARNING("File access error: " << strerror(errno));
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        return false;
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    }
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    if ((buffer.st_mode & S_IFREG) > 0)
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        return true;
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    return false;
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}
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bool TValidateFile::isValidDir(const string& path)
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{
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    DECL_TRACER("TValidateFile::isValidDir(const string& path)");
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    struct stat buffer;
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    if (stat (path.c_str(), &buffer) != 0)
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        return false;
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    if ((buffer.st_mode & S_IFDIR) > 0)
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        return true;
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    return false;
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}
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std::string &TValidateFile::makeFileName(const std::string& path, const std::string& name)
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{
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    DECL_TRACER("TValidateFile::makeFileName(const std::string& path, const std::string& name)");
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    if (name.empty())
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    {
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        MSG_DEBUG("No file name given!");
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        mFile.clear();
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        return mFile;
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    }
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    if (path.empty())
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        mFile = "./";
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    else
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        mFile = path + "/";
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    mFile.append(name);
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    return mFile;
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}
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bool TValidateFile::createPath(const string &path)
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{
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    DECL_TRACER("TValidateFile::createPath(const string &path)");
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    if (path.length() == 0 || path == ".")
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        return true;
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    vector<string> parts = StrSplit(path, "/");
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    vector<string>::iterator iter;
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    bool absolut = false;
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    string pPart;
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    if (path[0] == '/')
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        absolut = true;
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    for (iter = parts.begin(); iter != parts.end(); ++iter)
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    {
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        if ((pPart.empty() && absolut) || !pPart.empty())
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            pPart += "/" + *iter;
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        else
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            pPart += *iter;
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        // Test for existence of the path part and whether it is a file or a directory.
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        struct stat buffer;
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        if (stat (pPart.data(), &buffer) == 0)      // If there exists something test what it is.
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        {
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            if (!S_ISDIR(buffer.st_mode) && !S_ISLNK(buffer.st_mode))
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            {
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                MSG_WARNING(pPart << " is not a directory!");
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                return false;
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            }
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        }
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        else    // We try to create it
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        {
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            if (mkdir(pPart.c_str(), S_IRWXU | S_IRWXG | S_IXOTH | S_IROTH) == -1)
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            {
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                MSG_ERROR("Error creating directory " << pPart << ": " << strerror(errno));
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                return false;
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            }
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        }
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    }
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    return true;
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}