/**
* Parse and record the connection parameters related to this request.
*
* @param socket The socket on which we are connected
* @exception IOException if an input/output error occurs
* @exception ServletException if a parsing error occurs
*/
private void parseConnection(Socket socket) throws IOException, ServletException {
if (debug >= 2)
log(
" parseConnection: address="
+ socket.getInetAddress()
+ ", port="
+ connector.getPort());
((HttpRequestImpl) request).setInet(socket.getInetAddress());
if (proxyPort != 0) request.setServerPort(proxyPort);
else request.setServerPort(serverPort);
request.setSocket(socket);
}
/**
* Process an incoming HTTP request on the Socket that has been assigned to this Processor. Any
* exceptions that occur during processing must be swallowed and dealt with.
*
* @param socket The socket on which we are connected to the client
*/
private void process(Socket socket) {
boolean ok = true;
boolean finishResponse = true;
SocketInputStream input = null;
OutputStream output = null;
// Construct and initialize the objects we will need
try {
input = new SocketInputStream(socket.getInputStream(), connector.getBufferSize());
} catch (Exception e) {
log("process.create", e);
ok = false;
}
keepAlive = true;
while (!stopped && ok && keepAlive) {
finishResponse = true;
try {
request.setStream(input);
request.setResponse(response);
output = socket.getOutputStream();
response.setStream(output);
response.setRequest(request);
((HttpServletResponse) response.getResponse()).setHeader("Server", SERVER_INFO);
} catch (Exception e) {
log("process.create", e);
ok = false;
}
// Parse the incoming request
try {
if (ok) {
parseConnection(socket);
parseRequest(input, output);
if (!request.getRequest().getProtocol().startsWith("HTTP/0")) parseHeaders(input);
if (http11) {
// Sending a request acknowledge back to the client if
// requested.
ackRequest(output);
// If the protocol is HTTP/1.1, chunking is allowed.
if (connector.isChunkingAllowed()) response.setAllowChunking(true);
}
}
} catch (EOFException e) {
// It's very likely to be a socket disconnect on either the
// client or the server
ok = false;
finishResponse = false;
} catch (ServletException e) {
ok = false;
try {
((HttpServletResponse) response.getResponse())
.sendError(HttpServletResponse.SC_BAD_REQUEST);
} catch (Exception f) {;
}
} catch (InterruptedIOException e) {
if (debug > 1) {
try {
log("process.parse", e);
((HttpServletResponse) response.getResponse())
.sendError(HttpServletResponse.SC_BAD_REQUEST);
} catch (Exception f) {;
}
}
ok = false;
} catch (Exception e) {
try {
log("process.parse", e);
((HttpServletResponse) response.getResponse())
.sendError(HttpServletResponse.SC_BAD_REQUEST);
} catch (Exception f) {;
}
ok = false;
}
// Ask our Container to process this request
try {
((HttpServletResponse) response).setHeader("Date", FastHttpDateFormat.getCurrentDate());
if (ok) {
connector.getContainer().invoke(request, response);
}
} catch (ServletException e) {
log("process.invoke", e);
try {
((HttpServletResponse) response.getResponse())
.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
} catch (Exception f) {;
}
ok = false;
} catch (InterruptedIOException e) {
ok = false;
} catch (Throwable e) {
log("process.invoke", e);
try {
((HttpServletResponse) response.getResponse())
.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
} catch (Exception f) {;
}
ok = false;
}
// Finish up the handling of the request
if (finishResponse) {
try {
response.finishResponse();
} catch (IOException e) {
ok = false;
} catch (Throwable e) {
log("process.invoke", e);
ok = false;
}
try {
request.finishRequest();
} catch (IOException e) {
ok = false;
} catch (Throwable e) {
log("process.invoke", e);
ok = false;
}
try {
if (output != null) output.flush();
} catch (IOException e) {
ok = false;
}
}
// We have to check if the connection closure has been requested
// by the application or the response stream (in case of HTTP/1.0
// and keep-alive).
if ("close".equals(response.getHeader("Connection"))) {
keepAlive = false;
}
// End of request processing
status = Constants.PROCESSOR_IDLE;
// Recycling the request and the response objects
request.recycle();
response.recycle();
}
try {
shutdownInput(input);
socket.close();
} catch (IOException e) {;
} catch (Throwable e) {
log("process.invoke", e);
}
socket = null;
}
/**
* Parse the incoming HTTP request and set the corresponding HTTP request properties.
*
* @param input The input stream attached to our socket
* @param output The output stream of the socket
* @exception IOException if an input/output error occurs
* @exception ServletException if a parsing error occurs
*/
private void parseRequest(SocketInputStream input, OutputStream output)
throws IOException, ServletException {
// Parse the incoming request line
input.readRequestLine(requestLine);
// When the previous method returns, we're actually processing a
// request
status = Constants.PROCESSOR_ACTIVE;
String method = new String(requestLine.method, 0, requestLine.methodEnd);
String uri = null;
String protocol = new String(requestLine.protocol, 0, requestLine.protocolEnd);
// System.out.println(" Method:" + method + "_ Uri:" + uri
// + "_ Protocol:" + protocol);
if (protocol.length() == 0) protocol = "HTTP/0.9";
// Now check if the connection should be kept alive after parsing the
// request.
if (protocol.equals("HTTP/1.1")) {
http11 = true;
sendAck = false;
} else {
http11 = false;
sendAck = false;
// For HTTP/1.0, connection are not persistent by default,
// unless specified with a Connection: Keep-Alive header.
keepAlive = false;
}
// Validate the incoming request line
if (method.length() < 1) {
throw new ServletException(sm.getString("httpProcessor.parseRequest.method"));
} else if (requestLine.uriEnd < 1) {
throw new ServletException(sm.getString("httpProcessor.parseRequest.uri"));
}
// Parse any query parameters out of the request URI
int question = requestLine.indexOf("?");
if (question >= 0) {
request.setQueryString(
new String(requestLine.uri, question + 1, requestLine.uriEnd - question - 1));
if (debug >= 1)
log(" Query string is " + ((HttpServletRequest) request.getRequest()).getQueryString());
uri = new String(requestLine.uri, 0, question);
} else {
request.setQueryString(null);
uri = new String(requestLine.uri, 0, requestLine.uriEnd);
}
// Checking for an absolute URI (with the HTTP protocol)
if (!uri.startsWith("/")) {
int pos = uri.indexOf("://");
// Parsing out protocol and host name
if (pos != -1) {
pos = uri.indexOf('/', pos + 3);
if (pos == -1) {
uri = "";
} else {
uri = uri.substring(pos);
}
}
}
// Parse any requested session ID out of the request URI
int semicolon = uri.indexOf(match);
if (semicolon >= 0) {
String rest = uri.substring(semicolon + match.length());
int semicolon2 = rest.indexOf(';');
if (semicolon2 >= 0) {
request.setRequestedSessionId(rest.substring(0, semicolon2));
rest = rest.substring(semicolon2);
} else {
request.setRequestedSessionId(rest);
rest = "";
}
request.setRequestedSessionURL(true);
uri = uri.substring(0, semicolon) + rest;
if (debug >= 1)
log(
" Requested URL session id is "
+ ((HttpServletRequest) request.getRequest()).getRequestedSessionId());
} else {
request.setRequestedSessionId(null);
request.setRequestedSessionURL(false);
}
// Normalize URI (using String operations at the moment)
String normalizedUri = normalize(uri);
if (debug >= 1) log("Normalized: '" + uri + "' to '" + normalizedUri + "'");
// Set the corresponding request properties
((HttpRequest) request).setMethod(method);
request.setProtocol(protocol);
if (normalizedUri != null) {
((HttpRequest) request).setRequestURI(normalizedUri);
} else {
((HttpRequest) request).setRequestURI(uri);
}
request.setSecure(connector.getSecure());
request.setScheme(connector.getScheme());
if (normalizedUri == null) {
log(" Invalid request URI: '" + uri + "'");
throw new ServletException("Invalid URI: " + uri + "'");
}
if (debug >= 1)
log(" Request is '" + method + "' for '" + uri + "' with protocol '" + protocol + "'");
}
/**
* Parse the incoming HTTP request headers, and set the appropriate request headers.
*
* @param input The input stream connected to our socket
* @exception IOException if an input/output error occurs
* @exception ServletException if a parsing error occurs
*/
private void parseHeaders(SocketInputStream input) throws IOException, ServletException {
while (true) {
HttpHeader header = request.allocateHeader();
// Read the next header
input.readHeader(header);
if (header.nameEnd == 0) {
if (header.valueEnd == 0) {
return;
} else {
throw new ServletException(sm.getString("httpProcessor.parseHeaders.colon"));
}
}
String value = new String(header.value, 0, header.valueEnd);
if (debug >= 1) log(" Header " + new String(header.name, 0, header.nameEnd) + " = " + value);
// Set the corresponding request headers
if (header.equals(DefaultHeaders.AUTHORIZATION_NAME)) {
request.setAuthorization(value);
} else if (header.equals(DefaultHeaders.ACCEPT_LANGUAGE_NAME)) {
parseAcceptLanguage(value);
} else if (header.equals(DefaultHeaders.COOKIE_NAME)) {
Cookie cookies[] = RequestUtil.parseCookieHeader(value);
for (int i = 0; i < cookies.length; i++) {
if (cookies[i].getName().equals(Globals.SESSION_COOKIE_NAME)) {
// Override anything requested in the URL
if (!request.isRequestedSessionIdFromCookie()) {
// Accept only the first session id cookie
request.setRequestedSessionId(cookies[i].getValue());
request.setRequestedSessionCookie(true);
request.setRequestedSessionURL(false);
if (debug >= 1)
log(
" Requested cookie session id is "
+ ((HttpServletRequest) request.getRequest()).getRequestedSessionId());
}
}
if (debug >= 1)
log(" Adding cookie " + cookies[i].getName() + "=" + cookies[i].getValue());
request.addCookie(cookies[i]);
}
} else if (header.equals(DefaultHeaders.CONTENT_LENGTH_NAME)) {
int n = -1;
try {
n = Integer.parseInt(value);
} catch (Exception e) {
throw new ServletException(sm.getString("httpProcessor.parseHeaders.contentLength"));
}
request.setContentLength(n);
} else if (header.equals(DefaultHeaders.CONTENT_TYPE_NAME)) {
request.setContentType(value);
} else if (header.equals(DefaultHeaders.HOST_NAME)) {
int n = value.indexOf(':');
if (n < 0) {
if (connector.getScheme().equals("http")) {
request.setServerPort(80);
} else if (connector.getScheme().equals("https")) {
request.setServerPort(443);
}
if (proxyName != null) request.setServerName(proxyName);
else request.setServerName(value);
} else {
if (proxyName != null) request.setServerName(proxyName);
else request.setServerName(value.substring(0, n).trim());
if (proxyPort != 0) request.setServerPort(proxyPort);
else {
int port = 80;
try {
port = Integer.parseInt(value.substring(n + 1).trim());
} catch (Exception e) {
throw new ServletException(sm.getString("httpProcessor.parseHeaders.portNumber"));
}
request.setServerPort(port);
}
}
} else if (header.equals(DefaultHeaders.CONNECTION_NAME)) {
if (header.valueEquals(DefaultHeaders.CONNECTION_CLOSE_VALUE)) {
keepAlive = false;
response.setHeader("Connection", "close");
}
// request.setConnection(header);
/*
if ("keep-alive".equalsIgnoreCase(value)) {
keepAlive = true;
}
*/
} else if (header.equals(DefaultHeaders.EXPECT_NAME)) {
if (header.valueEquals(DefaultHeaders.EXPECT_100_VALUE)) sendAck = true;
else
throw new ServletException(sm.getString("httpProcessor.parseHeaders.unknownExpectation"));
} else if (header.equals(DefaultHeaders.TRANSFER_ENCODING_NAME)) {
// request.setTransferEncoding(header);
}
request.nextHeader();
}
}
/**
* Parse the value of an <code>Accept-Language</code> header, and add the corresponding Locales to
* the current request.
*
* @param value The value of the <code>Accept-Language</code> header.
*/
private void parseAcceptLanguage(String value) {
// Store the accumulated languages that have been requested in
// a local collection, sorted by the quality value (so we can
// add Locales in descending order). The values will be ArrayLists
// containing the corresponding Locales to be added
TreeMap locales = new TreeMap();
// Preprocess the value to remove all whitespace
int white = value.indexOf(' ');
if (white < 0) white = value.indexOf('\t');
if (white >= 0) {
StringBuffer sb = new StringBuffer();
int len = value.length();
for (int i = 0; i < len; i++) {
char ch = value.charAt(i);
if ((ch != ' ') && (ch != '\t')) sb.append(ch);
}
value = sb.toString();
}
// Process each comma-delimited language specification
parser.setString(value); // ASSERT: parser is available to us
int length = parser.getLength();
while (true) {
// Extract the next comma-delimited entry
int start = parser.getIndex();
if (start >= length) break;
int end = parser.findChar(',');
String entry = parser.extract(start, end).trim();
parser.advance(); // For the following entry
// Extract the quality factor for this entry
double quality = 1.0;
int semi = entry.indexOf(";q=");
if (semi >= 0) {
try {
quality = Double.parseDouble(entry.substring(semi + 3));
} catch (NumberFormatException e) {
quality = 0.0;
}
entry = entry.substring(0, semi);
}
// Skip entries we are not going to keep track of
if (quality < 0.00005) continue; // Zero (or effectively zero) quality factors
if ("*".equals(entry)) continue; // FIXME - "*" entries are not handled
// Extract the language and country for this entry
String language = null;
String country = null;
String variant = null;
int dash = entry.indexOf('-');
if (dash < 0) {
language = entry;
country = "";
variant = "";
} else {
language = entry.substring(0, dash);
country = entry.substring(dash + 1);
int vDash = country.indexOf('-');
if (vDash > 0) {
String cTemp = country.substring(0, vDash);
variant = country.substring(vDash + 1);
country = cTemp;
} else {
variant = "";
}
}
// Add a new Locale to the list of Locales for this quality level
Locale locale = new Locale(language, country, variant);
Double key = new Double(-quality); // Reverse the order
ArrayList values = (ArrayList) locales.get(key);
if (values == null) {
values = new ArrayList();
locales.put(key, values);
}
values.add(locale);
}
// Process the quality values in highest->lowest order (due to
// negating the Double value when creating the key)
Iterator keys = locales.keySet().iterator();
while (keys.hasNext()) {
Double key = (Double) keys.next();
ArrayList list = (ArrayList) locales.get(key);
Iterator values = list.iterator();
while (values.hasNext()) {
Locale locale = (Locale) values.next();
if (debug >= 1) log(" Adding locale '" + locale + "'");
request.addLocale(locale);
}
}
}
