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/*
    Copyright (C) 2005-2009  Michel de Boer <michel@twinklephone.com>

    This program 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 2 of the License, or
    (at your option) any later version.

    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, see <https://www.gnu.org/licenses/>.
*/

#include "header.h"
#include "parse_ctrl.h"
#include "protocol.h"
#include "util.h"

t_header::t_header() :
	populated(false)
{}

t_header::t_header(const string &_header_name, const string &_compact_name) :
	populated(false),
	header_name(_header_name),
	compact_name(_compact_name)
{}

string t_header::encode(void) const {
	string s;

	if (!populated) return s;

	s = (t_parser::compact_headers && !compact_name.empty() ? 
			compact_name : header_name);
	s += ": ";
	s += encode_value();
	s += CRLF;
	
	return s;
}

string t_header::encode_env(void) const {
	string s("SIP_");
	s += toupper(replace_char(header_name, '-', '_'));
	s += '=';
	s += encode_value();
	
	return s;
}

bool t_header::is_populated() const {
	return populated;
}

string t_header::get_name(void) const {
	return header_name;
}

string t_header::get_value(void) const {
	string s;
	string::size_type i;

	if (!populated) return s;

	s = encode();
	i = s.find(':');

	// The colon cannot be the first or last character
	if (i == string::npos || i == s.size()-1) return "";

	s = s.substr(i+1);
	i = s.find(CRLF);
	s = s.substr(0, i);

	return (trim(s));
}