vector<url> get_config(const url &dst) throw (runtime_error) {
map<string,string>::const_iterator it = _data.find("PROXY_ENABLED");
vector<url> response;
if (it != _data.end() && it->second == "no") {
response.push_back(url("direct://"));
return response;
}
string key;
string proxy;
// If the URL is an ftp url, try to read the ftp proxy
if (dst.get_scheme() == "ftp")
key = "FTP_PROXY";
else if (dst.get_scheme() == "http")
key = "HTTP_PROXY";
else if (dst.get_scheme() == "https")
key = "HTTPS_PROXY";
it = _data.find(key);
if (it != _data.end())
proxy = it->second;
if (proxy.empty())
throw runtime_error("Unable to read configuration");
response.push_back(url(proxy));
return response;
}
vector<url> get_config(const url &dest) throw (runtime_error) {
// Check for changes in the config
fd_set rfds;
struct timeval timeout = { 0, 0 };
vector<url> response;
FD_ZERO(&rfds);
FD_SET(fileno(this->read), &rfds);
if (select(fileno(this->read)+1, &rfds, NULL, NULL, &timeout) > 0)
this->read_data();
// Mode is wpad:// or pac+http://...
if (this->data[PROXY_MODE] == "auto") {
string pac = this->data[PROXY_AUTOCONFIG_URL];
response.push_back(url::is_valid(pac) ? url(string("pac+") + pac) : url("wpad://"));
return response;
}
// Mode is http://... or socks://...
else if (this->data[PROXY_MODE] == "manual") {
bool auth = this->data[PROXY_USE_AUTHENTICATION] == "true";
string username = url::encode(this->data[PROXY_AUTH_USER], URL_ALLOWED_IN_USERINFO_ELEMENT);
string password = url::encode(this->data[PROXY_AUTH_PASSWORD], URL_ALLOWED_IN_USERINFO_ELEMENT);
// Get the per-scheme proxy settings
if (dest.get_scheme() == "http")
store_response("http", this->data[PROXY_HTTP_HOST],
this->data[PROXY_HTTP_PORT], auth, username, password, response);
else if (dest.get_scheme() == "https")
// It is expected that the configured server is an
// HTTP server that support CONNECT method.
store_response("http", this->data[PROXY_SECURE_HOST],
this->data[PROXY_SECURE_PORT], auth, username, password, response);
else if (dest.get_scheme() == "ftp")
// It is expected that the configured server is an
// HTTP server that handles proxying FTP URLs
// (e.g. request with header "Host: ftp://ftp.host.org")
store_response("http", this->data[PROXY_FTP_HOST],
this->data[PROXY_FTP_PORT], auth, username, password, response);
store_response("socks", this->data[PROXY_SOCKS_HOST],
this->data[PROXY_SOCKS_PORT], auth, username, password, response);
// In case nothing matched, try HTTP Connect and fallback to direct.
// If there is not secure HTTP proxy, this will only add direct:// to
// the response
if (response.size() == 0 && dest.get_scheme() != "http") {
store_response("http", this->data[PROXY_SECURE_HOST],
this->data[PROXY_SECURE_PORT], auth, username, password, response);
response.push_back(url("direct://"));
}
}
return response;
}