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//
// ccallsignlist.cpp
// m17ref
//
// Created by Jean-Luc Deltombe (LX3JL) on 30/12/2015.
// Copyright © 2015 Jean-Luc Deltombe (LX3JL). All rights reserved.
// Copyright © 2020 Thomas A. Early, N7TAE
//
// ----------------------------------------------------------------------------
// This file is part of m17ref.
//
// m17ref 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.
//
// m17ref 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
// with this software. If not, see <http://www.gnu.org/licenses/>.
// ----------------------------------------------------------------------------
#include <string.h>
#include <fcntl.h>
#include <sys/stat.h>
#include "main.h"
#include "callsignlist.h"
////////////////////////////////////////////////////////////////////////////////////////
// constructor
CCallsignList::CCallsignList()
{
m_Filename = nullptr;
::memset(&m_LastModTime, 0, sizeof(time_t));
}
////////////////////////////////////////////////////////////////////////////////////////
// file io
bool CCallsignList::LoadFromFile(const char *filename)
{
bool ok = false;
char sz[256];
char szStar[2] = "*";
// and load
std::ifstream file (filename);
if ( file.is_open() )
{
Lock();
// empty list
m_Callsigns.clear();
// fill with file content
while ( file.getline(sz, sizeof(sz)).good() )
{
// remove leading & trailing spaces
char *szt = TrimWhiteSpaces(sz);
// crack it
if ( (strlen(szt) > 0) && (szt[0] != '#') )
{
// 1st token is callsign
if ( (szt = strtok(szt, " ,\t")) != nullptr )
{
CCallsign callsign(ToUpper(szt));
// 2nd token is modules list
szt = strtok(nullptr, " ,\t");
// if token absent, use wildcard
if ( szt == nullptr )
{
szt = szStar;
}
// and add to list
m_Callsigns.push_back(CCallsignListItem(callsign, CIp(), ToUpper(szt)));
}
}
}
// close file
file.close();
// keep file path
m_Filename = filename;
// update time
GetLastModTime(&m_LastModTime);
// and done
Unlock();
ok = true;
std::cout << "Gatekeeper loaded " << m_Callsigns.size() << " lines from " << filename << std::endl;
}
else
{
std::cout << "Gatekeeper cannot find " << filename << std::endl;
}
return ok;
}
bool CCallsignList::ReloadFromFile(void)
{
bool ok = false;
if ( m_Filename != nullptr )
{
ok = LoadFromFile(m_Filename);
}
return ok;
}
bool CCallsignList::NeedReload(void)
{
bool needReload = false;
time_t time;
if ( GetLastModTime(&time) )
{
needReload = time != m_LastModTime;
}
return needReload;
}
////////////////////////////////////////////////////////////////////////////////////////
// compare
bool CCallsignList::IsCallsignListedWithWildcard(const CCallsign &callsign) const
{
for ( const auto &item : m_Callsigns )
{
if (item.HasSameCallsignWithWildcard(callsign))
return true;
}
return false;
}
bool CCallsignList::IsCallsignListedWithWildcard(const CCallsign &callsign, char module) const
{
for ( const auto &item : m_Callsigns )
{
if (item.HasSameCallsignWithWildcard(callsign) && ((module == ' ') || item.HasModuleListed(module)) )
return true;
}
return false;
}
bool CCallsignList::IsCallsignListed(const CCallsign &callsign, char module) const
{
for ( const auto &item : m_Callsigns )
{
if (item.HasSameCallsign(callsign) && item.HasModuleListed(module))
return true;
}
return false;
}
bool CCallsignList::IsCallsignListed(const CCallsign &callsign, const CIp &ip, const char *modules) const
{
for ( const auto &item : m_Callsigns )
{
if ( item.HasSameCallsign(callsign) )
{
if ( item.CheckListedModules(modules) )
{
if ( ip == item.GetIp() )
{
return true;
}
}
}
}
return false;
}
////////////////////////////////////////////////////////////////////////////////////////
// find
CCallsignListItem *CCallsignList::FindListItem(const CCallsign &Callsign)
{
for ( auto &item : m_Callsigns )
{
if ( item.GetCallsign().HasSameCallsign(Callsign) )
{
return &item;
}
}
return nullptr;
}
////////////////////////////////////////////////////////////////////////////////////////
// helpers
char *CCallsignList::TrimWhiteSpaces(char *str)
{
char *end;
// Trim leading space & tabs
while((*str == ' ') || (*str == '\t')) str++;
// All spaces?
if(*str == 0)
return str;
// Trim trailing space, tab or lf
end = str + ::strlen(str) - 1;
while((end > str) && ((*end == ' ') || (*end == '\t') || (*end == '\r'))) end--;
// Write new null terminator
*(end+1) = 0;
return str;
}
bool CCallsignList::GetLastModTime(time_t *time)
{
bool ok = false;
if ( m_Filename != nullptr )
{
struct stat fileStat;
if( ::stat(m_Filename, &fileStat) != -1 )
{
*time = fileStat.st_mtime;
ok = true;
}
}
return ok;
}
char *CCallsignList::ToUpper(char *str)
{
constexpr auto diff = 'a' - 'A';
for (char *p=str; *p; p++)
{
if (*p >= 'a' && *p <= 'z')
*p -= diff;
}
return str;
}