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// hostandport.h
/* Copyright 2009 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects
* for all of the code used other than as permitted herein. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you do not
* wish to do so, delete this exception statement from your version. If you
* delete this exception statement from all source files in the program,
* then also delete it in the license file.
*/
#pragma once
#include "mongo/bson/util/builder.h"
#include "mongo/db/server_options.h"
#include "mongo/util/mongoutils/str.h"
#include "mongo/util/net/sock.h"
namespace mongo {
using namespace mongoutils;
/** helper for manipulating host:port connection endpoints.
*/
struct HostAndPort {
HostAndPort() : _port(-1) { }
/** From a string hostname[:portnumber]
Throws user assertion if bad config string or bad port #.
*/
HostAndPort(const std::string& s);
/** @param p port number. -1 is ok to use default. */
HostAndPort(const std::string& h, int p /*= -1*/) : _host(h), _port(p) {
verify(!mongoutils::str::startsWith(h, '#'));
}
HostAndPort(const SockAddr& sock ) : _host( sock.getAddr() ) , _port( sock.getPort() ) { }
static HostAndPort me();
bool operator<(const HostAndPort& r) const {
const int cmp = host().compare(r.host());
if (cmp)
return cmp < 0;
return port() < r.port();
}
bool operator==(const HostAndPort& r) const {
return host() == r.host() && port() == r.port();
}
bool operator!=(const HostAndPort& r) const { return !(*this == r); }
/* returns true if the host/port combo identifies this process instance. */
bool isSelf() const; // defined in isself.cpp
bool isLocalHost() const;
/**
* @param includePort host:port if true, host otherwise
*/
string toString( bool includePort=true ) const;
operator string() const { return toString(); }
void append( StringBuilder& ss ) const;
bool empty() const {
return _host.empty() && _port < 0;
}
const string& host() const {
return _host;
}
int port() const {
if (hasPort())
return _port;
return ServerGlobalParams::DefaultDBPort;
}
bool hasPort() const {
return _port >= 0;
}
void setPort( int port ) {
_port = port;
}
private:
void init(const char *);
string _host;
int _port; // -1 indicates unspecified
};
inline HostAndPort HostAndPort::me() {
const char* ips = serverGlobalParams.bind_ip.c_str();
while(*ips) {
string ip;
const char * comma = strchr(ips, ',');
if (comma) {
ip = string(ips, comma - ips);
ips = comma + 1;
}
else {
ip = string(ips);
ips = "";
}
HostAndPort h = HostAndPort(ip, serverGlobalParams.port);
if (!h.isLocalHost()) {
return h;
}
}
string h = getHostName();
verify( !h.empty() );
verify( h != "localhost" );
return HostAndPort(h, serverGlobalParams.port);
}
inline string HostAndPort::toString( bool includePort ) const {
if ( ! includePort )
return host();
StringBuilder ss;
append( ss );
return ss.str();
}
inline void HostAndPort::append( StringBuilder& ss ) const {
ss << host();
int p = port();
if ( p != -1 ) {
ss << ':';
#if defined(_DEBUG)
if( p >= 44000 && p < 44100 ) {
log() << "warning: special debug port 44xxx used" << std::endl;
ss << p+1;
}
else
ss << p;
#else
ss << p;
#endif
}
}
inline bool HostAndPort::isLocalHost() const {
string _host = host();
return ( _host == "localhost"
|| mongoutils::str::startsWith(_host.c_str(), "127.")
|| _host == "::1"
|| _host == "anonymous unix socket"
|| _host.c_str()[0] == '/' // unix socket
);
}
inline void HostAndPort::init(const char *p) {
massert(13110, "HostAndPort: host is empty", *p);
const char *colon = strrchr(p, ':');
if( colon ) {
int port = atoi(colon+1);
massert(13095, "HostAndPort: bad port #", port > 0);
_host = string(p,colon-p);
_port = port;
}
else {
// no port specified.
_host = p;
_port = -1;
}
}
inline HostAndPort::HostAndPort(const std::string& s) {
init(s.c_str());
}
}
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