ZeroTierOne/control/NodeControlClient.cpp
2014-10-07 16:16:22 -07:00

160 lines
4.5 KiB
C++

/*
* ZeroTier One - Global Peer to Peer Ethernet
* Copyright (C) 2011-2014 ZeroTier Networks LLC
*
* 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 3 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 <http://www.gnu.org/licenses/>.
*
* --
*
* ZeroTier may be used and distributed under the terms of the GPLv3, which
* are available at: http://www.gnu.org/licenses/gpl-3.0.html
*
* If you would like to embed ZeroTier into a commercial application or
* redistribute it in a modified binary form, please contact ZeroTier Networks
* LLC. Start here: http://www.zerotier.com/
*/
#include "NodeControlClient.hpp"
#include "../node/Constants.hpp"
#include "../node/Utils.hpp"
#include "../node/Defaults.hpp"
#include "IpcConnection.hpp"
#include "IpcListener.hpp"
#include "NodeControlService.hpp"
namespace ZeroTier {
struct _NodeControlClientImpl
{
void (*resultHandler)(void *,const char *);
void *arg;
bool ignoreNextBreak;
IpcConnection *ipcc;
std::string err;
};
static void _CBipcResultHandler(void *arg,IpcConnection *ipcc,IpcConnection::EventType event,const char *result)
{
if ((event == IpcConnection::IPC_EVENT_COMMAND)&&(result)) {
if (!strcmp(result,"200 auth OK")) {
((_NodeControlClientImpl *)arg)->ignoreNextBreak = true;
} else if ((((_NodeControlClientImpl *)arg)->ignoreNextBreak)&&(!strcmp(result,"."))) {
((_NodeControlClientImpl *)arg)->ignoreNextBreak = false;
} else ((_NodeControlClientImpl *)arg)->resultHandler(((_NodeControlClientImpl *)arg)->arg,result);
}
}
NodeControlClient::NodeControlClient(const char *ep,const char *authToken,void (*resultHandler)(void *,const char *),void *arg)
throw() :
_impl((void *)new _NodeControlClientImpl)
{
_NodeControlClientImpl *impl = (_NodeControlClientImpl *)_impl;
impl->resultHandler = resultHandler;
impl->arg = arg;
impl->ignoreNextBreak = false;
try {
impl->ipcc = new IpcConnection(ep,ZT_IPC_TIMEOUT,&_CBipcResultHandler,_impl);
impl->ipcc->printf("auth %s"ZT_EOL_S,authToken);
} catch ( ... ) {
impl->ipcc = (IpcConnection *)0;
impl->err = "failure connecting to running ZeroTier One service";
}
}
NodeControlClient::~NodeControlClient()
{
if (_impl) {
delete ((_NodeControlClientImpl *)_impl)->ipcc;
delete (_NodeControlClientImpl *)_impl;
}
}
const char *NodeControlClient::error() const
throw()
{
if (((_NodeControlClientImpl *)_impl)->err.length())
return ((_NodeControlClientImpl *)_impl)->err.c_str();
return (const char *)0;
}
void NodeControlClient::send(const char *command)
throw()
{
try {
if (((_NodeControlClientImpl *)_impl)->ipcc)
((_NodeControlClientImpl *)_impl)->ipcc->printf("%s"ZT_EOL_S,command);
} catch ( ... ) {}
}
std::vector<std::string> NodeControlClient::splitLine(const char *line)
{
return Utils::split(line," ","\\","\"");
}
const char *NodeControlClient::authTokenDefaultUserPath()
{
static std::string dlp;
static Mutex dlp_m;
Mutex::Lock _l(dlp_m);
#ifdef __WINDOWS__
if (!dlp.length()) {
char buf[16384];
if (SUCCEEDED(SHGetFolderPathA(NULL,CSIDL_APPDATA,NULL,0,buf)))
dlp = (std::string(buf) + "\\ZeroTier\\One\\authtoken.secret");
}
#else // not __WINDOWS__
if (!dlp.length()) {
const char *home = getenv("HOME");
if (home) {
#ifdef __APPLE__
dlp = (std::string(home) + "/Library/Application Support/ZeroTier/One/authtoken.secret");
#else
dlp = (std::string(home) + "/.zeroTierOneAuthToken");
#endif
}
}
#endif // __WINDOWS__ or not __WINDOWS__
return dlp.c_str();
}
std::string NodeControlClient::getAuthToken(const char *path,bool generateIfNotFound)
{
unsigned char randbuf[24];
std::string token;
if (Utils::readFile(path,token))
return Utils::trim(token);
else token = "";
if (generateIfNotFound) {
Utils::getSecureRandom(randbuf,sizeof(randbuf));
for(unsigned int i=0;i<sizeof(randbuf);++i)
token.push_back(("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789")[(unsigned int)randbuf[i] % 62]);
if (!Utils::writeFile(path,token))
return std::string();
Utils::lockDownFile(path,false);
}
return token;
}
} // namespace ZeroTier