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/*
* This file is part of PowerDNS or dnsdist.
* Copyright -- PowerDNS.COM B.V. and its contributors
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* In addition, for the avoidance of any doubt, permission is granted to
* link this program with OpenSSL and to (re)distribute the binaries
* produced as the result of such linking.
*
* 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.
*/
#pragma once
#include <string>
#include <cstdio>
#include <stdexcept>
#include <stack>
#include <deque>
#include "namespaces.hh"
class ZoneParserTNG
{
public:
ZoneParserTNG(const string& fname, ZoneName zname=g_rootzonename, string reldir="", bool upgradeContent=false);
ZoneParserTNG(const vector<string>& zonedata, ZoneName zname, bool upgradeContent=false);
~ZoneParserTNG();
bool get(DNSResourceRecord& rr, std::string* comment=0);
typedef runtime_error exception;
typedef std::deque<pair<string::size_type, string::size_type> > parts_t;
ZoneName getZoneName();
string getLineOfFile(); // for error reporting purposes
pair<string,int> getLineNumAndFile(); // idem
void disableGenerate()
{
d_generateEnabled = false;
}
void setMaxGenerateSteps(size_t max)
{
d_maxGenerateSteps = max;
}
void setMaxIncludes(size_t max)
{
d_maxIncludes = max;
}
void setDefaultTTL(int ttl)
{
d_defaultttl = ttl;
d_havespecificttl = true;
}
private:
bool getLine();
bool getTemplateLine();
void stackFile(const std::string& fname);
unsigned makeTTLFromZone(const std::string& str);
struct filestate {
filestate(FILE* fp, string filename) :
d_fp(fp), d_filename(std::move(filename)) {}
FILE *d_fp;
string d_filename;
int d_lineno{0};
};
parts_t d_parts;
string d_reldir;
string d_line;
DNSName d_prevqname;
ZoneName d_zonename;
string d_templateline;
vector<string> d_zonedata;
vector<string>::iterator d_zonedataline;
std::stack<filestate> d_filestates;
parts_t d_templateparts;
size_t d_maxGenerateSteps{0};
size_t d_maxIncludes{20};
int d_defaultttl;
uint32_t d_templatecounter, d_templatestop, d_templatestep;
bool d_havespecificttl;
bool d_fromfile;
bool d_generateEnabled{true};
bool d_upgradeContent;
bool d_templateCounterWrapped{false};
};
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