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/*******************************************************************************
* libproxy - A library for proxy configuration
* Copyright (C) 2006 Nathaniel McCallum <nathaniel@natemccallum.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
******************************************************************************/
#include "../extension_pacrunner.hpp"
using namespace libproxy;
#define I_ACKNOWLEDGE_THAT_NATUS_IS_NOT_STABLE
#include <natus/natus.h>
#include "pacutils.h"
using namespace natus;
static Value dnsResolve(Value& ths, Value& fnc, vector<Value>& arg) {
Value exc = checkArguments(ths, arg, "s");
if (exc.isException()) return exc;
// Look it up
struct addrinfo *info;
if (getaddrinfo(arg[0].toString().c_str(), NULL, NULL, &info))
return NULL;
// Try for IPv4
char* tmp = new char[INET6_ADDRSTRLEN+1];
if (getnameinfo(info->ai_addr, info->ai_addrlen,
tmp, INET6_ADDRSTRLEN+1,
NULL, 0,
NI_NUMERICHOST)) {
freeaddrinfo(info);
delete tmp;
return NULL;
}
freeaddrinfo(info);
// Create the return value
Value ret = ths.newString(tmp);
delete tmp;
return ret;
}
static Value myIpAddress(Value& ths, Value& fnc, vector<Value>& arg) {
char hostname[1024];
if (!gethostname(hostname, 1023)) {
vector<Value> dnsargs;
dnsargs.push_back(ths.newString(hostname));
return dnsResolve(ths, fnc, dnsargs);
}
return ths.newString("Unable to find hostname!").toException();
}
class natus_pacrunner : public pacrunner {
public:
natus_pacrunner(string pac, const url& pacurl) throw (bad_alloc) : pacrunner(pac, pacurl) {
Value exc;
// Create the basic context
if (!eng.initialize()) goto error;
glb = this->eng.newGlobal();
if (glb.isException()) goto error;
// Add dnsResolve into the context
if (!glb.set("dnsResolve", glb.newFunction(dnsResolve))) goto error;
// Add myIpAddress into the context
if (!glb.set("myIpAddress", glb.newFunction(myIpAddress))) goto error;
// Add all other routines into the context
exc = glb.evaluate(JAVASCRIPT_ROUTINES);
if (exc.isException()) goto error;
// Add the PAC into the context
exc = glb.evaluate(pac.c_str(), pacurl.to_string());
if (exc.isException()) goto error;
return;
error:
throw bad_alloc();
}
string run(const url& url_) throw (bad_alloc) {
vector<Value> args;
args.push_back(glb.newString(url_.to_string()));
args.push_back(glb.newString(url_.get_host()));
Value res = glb.call("FindProxyForURL", args);
if (res.isString() && !res.isException())
return res.toString();
return "";
}
private:
Engine eng;
Value glb;
};
PX_PACRUNNER_MODULE_EZ(natus, "nt_engine_init", "natus");
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