/**
* Parser for the first (!) line from the HTTP request<br>
* Sets up the URL, method and remote hostname.
*
* @return an InetAddress for the hostname, null on errors with a statuscode!=SC_OK
*/
public InetAddress parseRequest(String a, int method_index) {
if (server.debug) server.writeLog(a);
String f;
int pos;
url = "";
if (ssl) {
f = a.substring(8);
} else {
method = a.substring(0, a.indexOf(" ")); // first word in the line
pos = a.indexOf(":"); // locate first :
if (pos == -1) { // occours with "GET / HTTP/1.1"
url = a.substring(a.indexOf(" ") + 1, a.lastIndexOf(" "));
if (method_index == 0) { // method_index==0 --> GET
if (url.indexOf(server.WEB_CONFIG_FILE) != -1) statuscode = connection.SC_CONFIG_RQ;
else statuscode = connection.SC_FILE_REQUEST;
} else {
if (method_index == 1 && url.indexOf(server.WEB_CONFIG_FILE) != -1) { // allow
// "POST"
// for
// admin
// log
// in
statuscode = connection.SC_CONFIG_RQ;
} else {
statuscode = connection.SC_INTERNAL_SERVER_ERROR;
errordescription =
"This WWW proxy supports only the \"GET\" method while acting as webserver.";
}
}
return null;
}
f = a.substring(pos + 3); // removes "http://"
}
pos = f.indexOf(" "); // locate space, should be the space before
// "HTTP/1.1"
if (pos == -1) { // buggy request
statuscode = connection.SC_CLIENT_ERROR;
errordescription = "Your browser sent an invalid request: \"" + a + "\"";
return null;
}
f = f.substring(0, pos); // removes all after space
// if the url contains a space... it's not our mistake...(url's must
// never contain a space character)
pos = f.indexOf("/"); // locate the first slash
if (pos != -1) {
url = f.substring(pos); // saves path without hostname
f = f.substring(0, pos); // reduce string to the hostname
} else url = "/"; // occurs with this request:
// "GET http://localhost HTTP/1.1"
pos = f.indexOf(":"); // check for the portnumber
if (pos != -1) {
String l_port = f.substring(pos + 1);
l_port = l_port.indexOf(" ") != -1 ? l_port.substring(0, l_port.indexOf(" ")) : l_port;
int i_port = 80;
try {
i_port = Integer.parseInt(l_port);
} catch (NumberFormatException e_get_host) {
server.writeLog("get_Host :" + e_get_host + " !!!!");
}
f = f.substring(0, pos);
remote_port = i_port;
} else remote_port = 80;
remote_host_name = f;
InetAddress address = null;
if (server.log_access)
server.logAccess(
connection.getLocalSocket().getInetAddress().getHostAddress()
+ " "
+ method
+ " "
+ getFullURL());
try {
address = InetAddress.getByName(f);
if (remote_port == server.port && address.equals(InetAddress.getLocalHost())) {
if (url.indexOf(server.WEB_CONFIG_FILE) != -1 && (method_index == 0 || method_index == 1))
statuscode = connection.SC_CONFIG_RQ;
else if (method_index > 0) {
statuscode = connection.SC_INTERNAL_SERVER_ERROR;
errordescription =
"This WWW proxy supports only the \"GET\" method while acting as webserver.";
} else statuscode = connection.SC_FILE_REQUEST;
}
} catch (UnknownHostException e_u_host) {
if (!server.use_proxy) statuscode = connection.SC_HOST_NOT_FOUND;
}
return address;
}
