/*
 * Copyright (C) 1996-2018 The Squid Software Foundation and contributors
 *
 * Squid software is distributed under GPLv2+ license and includes
 * contributions from numerous individuals and organizations.
 * Please see the COPYING and CONTRIBUTORS files for details.
 */

/* DEBUG: section 28    Access Control */

#include "squid.h"
#include "acl/IntRange.h"
#include "cache_cf.h"
#include "Debug.h"
#include "Parsing.h"

/* explicit instantiation required for some systems */
/** \cond AUTODOCS_IGNORE */
template cbdata_type CbDataList< Range<int> >::CBDATA_CbDataList;
/** \endcond */

void
ACLIntRange::parse()
{
    char *a;

    while ((a = strtokFile())) {
        char *b = strchr(a, '-');
        unsigned short port1, port2;

        if (b) {
            *b = '\0';
            ++b;
        }

        port1 = xatos(a);

        if (b)
            port2 = xatos(b);
        else
            port2 = port1;

        if (port2 >= port1) {
            RangeType temp (0,0);
            temp.start = port1;
            temp.end = port2+1;
            ranges.push_back(temp);
        } else {
            debugs(28, DBG_CRITICAL, "ACLIntRange::parse: Invalid port value");
            self_destruct();
        }
    }
}

bool
ACLIntRange::empty() const
{
    return ranges.empty();
}

bool
ACLIntRange::match(int i)
{
    RangeType const toFind (i, i+1);
    CbDataListIterator<RangeType> iter(ranges);

    while (!iter.end()) {
        const RangeType & element = iter.next();
        RangeType result = element.intersection (toFind);

        if (result.size())
            return true;
    }

    return false;
}

ACLData<int> *
ACLIntRange::clone() const
{
    if (!ranges.empty())
        fatal("ACLIntRange::clone: attempt to clone used ACL");

    return new ACLIntRange (*this);
}

ACLIntRange::~ACLIntRange()
{}

SBufList
ACLIntRange::dump() const
{
    SBufList sl;
    CbDataListIterator<RangeType> iter(ranges);

    while (!iter.end()) {
        SBuf sb;
        const RangeType & element = iter.next();

        if (element.size() == 1)
            sb.Printf("%d", element.start);
        else
            sb.Printf("%d-%d", element.start, element.end-1);

        sl.push_back(sb);
    }

    return sl;
}