BESScrub.cc

// BESScrub.cc
 
// This file is part of bes, A C++ back-end server implementation framework
// for the OPeNDAP Data Access Protocol.
 
// Copyright (c) 2004-2009 University Corporation for Atmospheric Research
// Author: Patrick West <pwest@ucar.edu> and Jose Garcia <jgarcia@ucar.edu>
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
// 
// This library 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
// Lesser General Public License for more details.
// 
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
//
// You can contact University Corporation for Atmospheric Research at
// 3080 Center Green Drive, Boulder, CO 80301
 
// (c) COPYRIGHT University Corporation for Atmospheric Research 2004-2005
// Please read the full copyright statement in the file COPYRIGHT_UCAR.
//
// Authors:
//      pwest       Patrick West <pwest@ucar.edu>
//      jgarcia     Jose Garcia <jgarcia@ucar.edu>
 
#include "config.h"
 
#include <memory>
#include <limits.h>
 
#include "BESScrub.h"
#include "BESRegex.h"
 
using std::string;
using std::unique_ptr;


bool
BESScrub::command_line_arg_ok( const string &arg )
{
    if( arg.size() > 255 )
    return false ;
 
    return true ;
}

bool
BESScrub::size_ok(unsigned int sz, unsigned int nelem)
{
    return (sz > 0 && nelem < UINT_MAX / sz);
}

bool
BESScrub::pathname_ok(const string &path, bool strict)
{
    if (path.size() > 255)
        return false;
 
    if (strict) {
        const BESRegex name("[[:alpha:][:digit:]_./-]+");
        return name.match(path) == static_cast<int>(path.size());
    }
    else {
        const BESRegex name("[:print:]+");
        return name.match(path) == static_cast<int>(path.size());
    }
 
#if 0
    BESRegex name("[[:alpha:][:digit:]_./-]+");
    if (!strict)
        name = "[:print:]+";
        
    string::size_type len = path.size() ;
    int ret = name.match( path.c_str(), len ) ;
    if( ret != static_cast<int>(len) )
        return false ;
    return true ;
#endif
}