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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 <sstream>
#include "../extension_config.hpp"
using namespace libproxy;
#include <SystemConfiguration/SystemConfiguration.h>
class str : public string {
public:
str(CFStringRef s) : string() {
if (!s) return;
const char* tmp = CFStringGetCStringPtr(s, CFStringGetFastestEncoding(s));
*this += tmp ? tmp : "";
}
str(CFArrayRef a) : string() {
if (!a) return;
for (CFIndex i=0 ; i < CFArrayGetCount(a) ; i++) {
CFStringRef s = (CFStringRef) CFArrayGetValueAtIndex(a, i);
*this += str(s);
if (i+1 < CFArrayGetCount(a))
*this += ",";
}
}
};
template <class T>
static T getobj(CFDictionaryRef settings, string key) {
if (!settings) return NULL;
CFStringRef k = CFStringCreateWithCString(NULL, key.c_str(), kCFStringEncodingMacRoman);
if (!k) return NULL;
T retval = (T) CFDictionaryGetValue(settings, k);
CFRelease(k);
return retval;
}
static bool getint(CFDictionaryRef settings, string key, int64_t& answer) {
CFNumberRef n = getobj<CFNumberRef>(settings, key);
if (!n) return false;
if (!CFNumberGetValue(n, kCFNumberSInt64Type, &answer))
return false;
return true;
}
static bool getbool(CFDictionaryRef settings, string key, bool dflt=false) {
int64_t i;
if (!getint(settings, key, i)) return dflt;
return i != 0;
}
static bool protocol_url(CFDictionaryRef settings, string protocol, string& config) {
int64_t port;
string host;
// Check ProtocolEnabled
if (!getbool(settings, protocol + "Enable"))
return false;
// Get ProtocolPort
if (!getint(settings, protocol + "Port", port))
return false;
// Get ProtocolProxy
if ((host = str(getobj<CFStringRef>(settings, protocol + "Proxy"))) == "")
return false;
stringstream ss;
if (protocol == "HTTP" || protocol == "HTTPS" || protocol == "FTP" || protocol == "Gopher")
ss << "http://";
else if (protocol == "RTSP")
ss << "rtsp://";
else if (protocol == "SOCKS")
ss << "socks://";
else
return false;
ss << host;
ss << ":";
ss << port;
config = ss.str();
return true;
}
static string toupper(string str) {
string tmp;
for (unsigned int i=0 ; str.c_str()[i] ; i++)
tmp += toupper(str.c_str()[i]);
return tmp;
}
static string capitalize(string str) {
char c = toupper(str.c_str()[0]);
return string(&c, 1) + str.substr(1);
}
class macosx_config_extension : public config_extension {
public:
vector<url> get_config(const url &the_url) {
string tmp;
CFDictionaryRef proxies = SCDynamicStoreCopyProxies(NULL);
vector<url> response;
if (!proxies) throw runtime_error("Unable to fetch proxy configuration");
// wpad://
if (getbool(proxies, "ProxyAutoDiscoveryEnable")) {
CFRelease(proxies);
response.push_back(url("wpad://"));
}
// pac+http://...
else if (getbool(proxies, "ProxyAutoConfigEnable") &&
(tmp = str(getobj<CFStringRef>(proxies, "ProxyAutoConfigURLString"))) != "" &&
url::is_valid(tmp)) {
CFRelease(proxies);
response.push_back(url(string("pac+") + tmp));
}
// http:// or socks:// (TODO: gopher:// and rtsp:// ???)
else if ((protocol_url(proxies, toupper(the_url.get_scheme()), tmp) && url::is_valid(tmp)) ||
(protocol_url(proxies, capitalize(the_url.get_scheme()), tmp) && url::is_valid(tmp)) ||
(protocol_url(proxies, toupper("http"), tmp) && url::is_valid(tmp)) ||
(protocol_url(proxies, toupper("socks"), tmp) && url::is_valid(tmp))) {
CFRelease(proxies);
response.push_back(url(tmp));
}
else {
// direct://
CFRelease(proxies);
response.push_back(url("direct://"));
}
return response;
}
string get_ignore(const url&) {
// Get config dict
CFDictionaryRef proxies = SCDynamicStoreCopyProxies(NULL);
if (!proxies) return "";
// Get ignores
string tmp = str(getobj<CFArrayRef>(proxies, "ExceptionsList"));
if (getbool(proxies, "ExcludeSimpleHostnames"))
tmp += (tmp == "" ? string("") : string(",")) + "<local>";
CFRelease(proxies);
return tmp;
}
};
MM_MODULE_INIT_EZ(macosx_config_extension, true, NULL, NULL);
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