private void init() {
if (isInitialized) return;
synchronized (this) {
if (isInitialized) return;
try {
group =
AsynchronousChannelGroup.withThreadPool(
new ThreadPoolExecutor(
config.getAsynchronousCorePoolSize(),
config.getAsynchronousMaximumPoolSize(),
config.getAsynchronousPoolKeepAliveTime(),
TimeUnit.MILLISECONDS,
new LinkedTransferQueue<Runnable>(),
new ThreadFactory() {
@Override
public Thread newThread(Runnable r) {
return new Thread(r, "firefly asynchronous server thread");
}
}));
log.info(
"create asychronous I/O thread pool. core pool size: {}, max pool size: {}, pool keep alive time: {}ms",
config.getAsynchronousCorePoolSize(),
config.getAsynchronousMaximumPoolSize(),
config.getAsynchronousPoolKeepAliveTime());
EventManager eventManager = new DefaultEventManager(config);
worker = new AsynchronousTcpWorker(config, eventManager);
} catch (IOException e) {
log.error("initialization server channel group error", e);
}
isInitialized = true;
}
}
@Override
protected BeanDefinition getBeanDefinition(Class<?> c) {
if (c.isAnnotationPresent(Controller.class) || c.isAnnotationPresent(Component.class)) {
log.info("classes [{}]", c.getName());
return componentParser(c);
} else if (c.isAnnotationPresent(Interceptor.class)) {
log.info("classes [{}]", c.getName());
return interceptorParser(c);
} else return null;
}
private void loadParam() {
if (!loadParam) {
try {
loadParam(queryString);
String contentType = getContentType();
if (method.equals("POST")
&& contentType != null
&& contentType.startsWith("application/x-www-form-urlencoded")) {
int contentLength = getContentLength();
byte[] data = new byte[contentLength];
byte[] buf = new byte[1024];
ServletInputStream input = getInputStream();
try {
int readBytes = 0;
for (int len = 0; (len = input.read(buf)) != -1; ) {
System.arraycopy(buf, 0, data, readBytes, len);
readBytes += len;
if (readBytes >= contentLength) break;
}
loadParam(new String(data, characterEncoding));
} finally {
input.close();
}
}
} catch (Throwable t) {
log.error("load param error", t);
}
loadParam = true;
}
}
@Override
public void start(String host, int port) {
if (config == null) throw new NetException("server config is null");
init();
listen(bind(host, port));
log.info("server start. host: {}, port: {}", host, port);
}
private IllegalCharacterException(State state, byte ch, ByteBuffer buffer) {
super(400, String.format("Illegal character 0x%X", ch));
// Bug #460642 - don't reveal buffers to end user
log.warn(
String.format(
"Illegal character 0x%X in state=%s for buffer %s",
ch, state, BufferUtils.toDetailString(buffer)));
}
private AsynchronousServerSocketChannel bind(String host, int port) {
AsynchronousServerSocketChannel serverSocketChannel = null;
try {
serverSocketChannel = AsynchronousServerSocketChannel.open(group);
serverSocketChannel.setOption(StandardSocketOptions.SO_REUSEADDR, true);
serverSocketChannel.bind(new InetSocketAddress(host, port), BACKLOG);
} catch (Exception e) {
log.error("ServerSocket bind error", e);
}
return serverSocketChannel;
}
public static String systemPageTemplate(int status, String content) {
StringBuilder ret = new StringBuilder();
try {
ret.append("<!DOCTYPE html><html><head><title>firefly</title></head><body><h2>HTTP ERROR ")
.append(status)
.append("</h2><div>")
.append(StringUtils.escapeXML(URLDecoder.decode(content, "UTF-8")))
.append("</div><hr/><i><small>firefly framework</small></i></body></html>");
} catch (UnsupportedEncodingException e) {
log.error("url decode error", e);
}
return ret.toString();
}
/** if http method is POST or PUT, when the business process finish, it must close piped stream */
void releaseInputStreamData() {
try {
if (getContentLength() > 0) {
if (bodyPipedStream != null) {
bodyPipedStream.close();
}
if (multipartFormData != null) {
multipartFormData.close();
}
}
} catch (Throwable t) {
log.error("release input stream error", t);
}
}
public void reset() {
if (DEBUG) log.debug("reset {}", this);
// reset state
if (_state == State.CLOSE || _state == State.CLOSED) return;
setState(State.START);
_endOfContent = EndOfContent.UNKNOWN_CONTENT;
_contentLength = -1;
_contentPosition = 0;
_responseStatus = 0;
_contentChunk = null;
_headerBytes = 0;
_host = false;
}
public static void responseSystemPage(
HttpServletRequest request,
HttpServletResponse response,
String charset,
int status,
String content) {
response.setStatus(status);
response.setCharacterEncoding(charset);
response.setHeader("Content-Type", "text/html; charset=" + charset);
PrintWriter writer = null;
try {
try {
writer = response.getWriter();
} catch (Throwable t) {
log.error("responseSystemPage error", t);
}
writer.print(systemPageTemplate(status, content));
} finally {
if (writer != null) writer.close();
}
}
private void setWebBeanDefinition(AnnotationBeanDefinition beanDefinition, Class<?> c) {
beanDefinition.setClassName(c.getName());
String id = getId(c);
beanDefinition.setId(id);
String[] names = ReflectUtils.getInterfaceNames(c);
beanDefinition.setInterfaceNames(names);
List<Field> fields = getInjectField(c);
beanDefinition.setInjectFields(fields);
List<Method> methods = getInjectMethod(c);
beanDefinition.setInjectMethods(methods);
try {
Object object = c.newInstance();
beanDefinition.setObject(object);
} catch (Throwable t) {
log.error("set web bean error", t);
}
}
/*
* Quick lookahead for the start state looking for a request method or a
* HTTP version, otherwise skip white space until something else to parse.
*/
private boolean quickStart(ByteBuffer buffer) {
if (_requestHandler != null) {
_method = HttpMethod.lookAheadGet(buffer);
if (_method != null) {
_methodString = _method.asString();
buffer.position(buffer.position() + _methodString.length() + 1);
setState(State.SPACE1);
return false;
}
} else if (_responseHandler != null) {
_version = HttpVersion.lookAheadGet(buffer);
if (_version != null) {
buffer.position(buffer.position() + _version.asString().length() + 1);
setState(State.SPACE1);
return false;
}
}
// Quick start look
while (_state == State.START && buffer.hasRemaining()) {
int ch = next(buffer);
if (ch > SPACE) {
_string.setLength(0);
_string.append((char) ch);
setState(_requestHandler != null ? State.METHOD : State.RESPONSE_VERSION);
return false;
} else if (ch == 0) break;
else if (ch < 0) throw new BadMessageException();
// count this white space as a header byte to avoid DOS
if (_maxHeaderBytes > 0 && ++_headerBytes > _maxHeaderBytes) {
log.warn("padding is too large > {}", _maxHeaderBytes);
throw new BadMessageException(HttpStatus.BAD_REQUEST_400);
}
}
return false;
}
@Override
public void close() throws IOException {
try {
flush();
if (!keepAlive) session.close();
} finally {
if (!hasSavedAccessLog) {
access.info(
"{}|{}|{}|{}|{}|{}|{}|{}|{}|{}",
session.getSessionId(),
Monitor.CONN_COUNT.get(),
request.getHeader("X-Forwarded-For"),
request.getRemoteAddr(),
response.getStatus(),
request.getProtocol(),
request.getMethod(),
request.getRequestURI(),
request.getQueryString(),
request.getTimeDifference());
hasSavedAccessLog = true;
}
}
}
/*
* Parse a request or response line
*/
private boolean parseLine(ByteBuffer buffer) {
boolean handle = false;
// Process headers
while (_state.ordinal() < State.HEADER.ordinal() && buffer.hasRemaining() && !handle) {
// process each character
byte ch = next(buffer);
if (ch == 0) break;
if (_maxHeaderBytes > 0 && ++_headerBytes > _maxHeaderBytes) {
if (_state == State.URI) {
log.warn("URI is too large > {}", _maxHeaderBytes);
throw new BadMessageException(HttpStatus.REQUEST_URI_TOO_LONG_414);
} else {
if (_requestHandler != null) log.warn("request is too large > {}", _maxHeaderBytes);
else log.warn("response is too large > {}", _maxHeaderBytes);
throw new BadMessageException(HttpStatus.REQUEST_ENTITY_TOO_LARGE_413);
}
}
switch (_state) {
case METHOD:
if (ch == SPACE) {
_length = _string.length();
_methodString = takeString();
HttpMethod method = HttpMethod.CACHE.get(_methodString);
if (method != null && !_strict) _methodString = method.asString();
setState(State.SPACE1);
} else if (ch < SPACE) {
if (ch == LINE_FEED) throw new BadMessageException("No URI");
else throw new IllegalCharacterException(_state, ch, buffer);
} else _string.append((char) ch);
break;
case RESPONSE_VERSION:
if (ch == HttpTokens.SPACE) {
_length = _string.length();
String version = takeString();
_version = HttpVersion.CACHE.get(version);
if (_version == null)
throw new BadMessageException(HttpStatus.BAD_REQUEST_400, "Unknown Version");
setState(State.SPACE1);
} else if (ch < HttpTokens.SPACE) throw new IllegalCharacterException(_state, ch, buffer);
else _string.append((char) ch);
break;
case SPACE1:
if (ch > HttpTokens.SPACE || ch < 0) {
if (_responseHandler != null) {
setState(State.STATUS);
setResponseStatus(ch - '0');
} else {
_uri.reset();
setState(State.URI);
// quick scan for space or EoBuffer
if (buffer.hasArray()) {
byte[] array = buffer.array();
int p = buffer.arrayOffset() + buffer.position();
int l = buffer.arrayOffset() + buffer.limit();
int i = p;
while (i < l && array[i] > HttpTokens.SPACE) i++;
int len = i - p;
_headerBytes += len;
if (_maxHeaderBytes > 0 && ++_headerBytes > _maxHeaderBytes) {
log.warn("URI is too large > {}", _maxHeaderBytes);
throw new BadMessageException(HttpStatus.REQUEST_URI_TOO_LONG_414);
}
_uri.append(array, p - 1, len + 1);
buffer.position(i - buffer.arrayOffset());
} else _uri.append(ch);
}
} else if (ch < HttpTokens.SPACE) {
throw new BadMessageException(
HttpStatus.BAD_REQUEST_400, _requestHandler != null ? "No URI" : "No Status");
}
break;
case STATUS:
if (ch == HttpTokens.SPACE) {
setState(State.SPACE2);
} else if (ch >= '0' && ch <= '9') {
_responseStatus = _responseStatus * 10 + (ch - '0');
} else if (ch < HttpTokens.SPACE && ch >= 0) {
handle = _responseHandler.startResponse(_version, _responseStatus, null) || handle;
setState(State.HEADER);
} else {
throw new BadMessageException();
}
break;
case URI:
if (ch == HttpTokens.SPACE) {
setState(State.SPACE2);
} else if (ch < HttpTokens.SPACE && ch >= 0) {
// HTTP/0.9
throw new BadMessageException("HTTP/0.9 not supported");
} else {
_uri.append(ch);
}
break;
case SPACE2:
if (ch > HttpTokens.SPACE) {
_string.setLength(0);
_string.append((char) ch);
if (_responseHandler != null) {
_length = 1;
setState(State.REASON);
} else {
setState(State.REQUEST_VERSION);
// try quick look ahead for HTTP Version
HttpVersion version;
if (buffer.position() > 0 && buffer.hasArray())
version =
HttpVersion.lookAheadGet(
buffer.array(),
buffer.arrayOffset() + buffer.position() - 1,
buffer.arrayOffset() + buffer.limit());
else version = HttpVersion.CACHE.getBest(buffer, 0, buffer.remaining());
if (version != null) {
int pos = buffer.position() + version.asString().length() - 1;
if (pos < buffer.limit()) {
byte n = buffer.get(pos);
if (n == HttpTokens.CARRIAGE_RETURN) {
_cr = true;
_version = version;
_string.setLength(0);
buffer.position(pos + 1);
} else if (n == HttpTokens.LINE_FEED) {
_version = version;
_string.setLength(0);
buffer.position(pos);
}
}
}
}
} else if (ch == HttpTokens.LINE_FEED) {
if (_responseHandler != null) {
handle = _responseHandler.startResponse(_version, _responseStatus, null) || handle;
setState(State.HEADER);
} else {
// HTTP/0.9
throw new BadMessageException("HTTP/0.9 not supported");
}
} else if (ch < 0) throw new BadMessageException();
break;
case REQUEST_VERSION:
if (ch == HttpTokens.LINE_FEED) {
if (_version == null) {
_length = _string.length();
_version = HttpVersion.CACHE.get(takeString());
}
if (_version == null)
throw new BadMessageException(HttpStatus.BAD_REQUEST_400, "Unknown Version");
// Should we try to cache header fields?
if (_connectionFields == null
&& _version.getVersion() >= HttpVersion.HTTP_1_1.getVersion()
&& _handler.getHeaderCacheSize() > 0) {
int header_cache = _handler.getHeaderCacheSize();
_connectionFields = new ArrayTernaryTrie<>(header_cache);
}
setState(State.HEADER);
handle =
_requestHandler.startRequest(_methodString, _uri.toString(), _version) || handle;
continue;
} else if (ch >= HttpTokens.SPACE) _string.append((char) ch);
else throw new BadMessageException();
break;
case REASON:
if (ch == HttpTokens.LINE_FEED) {
String reason = takeString();
setState(State.HEADER);
handle = _responseHandler.startResponse(_version, _responseStatus, reason) || handle;
continue;
} else if (ch >= HttpTokens.SPACE) {
_string.append((char) ch);
if (ch != ' ' && ch != '\t') _length = _string.length();
} else throw new BadMessageException();
break;
default:
throw new IllegalStateException(_state.toString());
}
}
return handle;
}
/**
* Parse until next Event.
*
* @param buffer the buffer to parse
* @return True if an {@link RequestHandler} method was called and it returned true;
*/
public boolean parseNext(ByteBuffer buffer) {
if (DEBUG) log.debug("parseNext s={} {}", _state, BufferUtils.toDetailString(buffer));
try {
// Start a request/response
if (_state == State.START) {
_version = null;
_method = null;
_methodString = null;
_endOfContent = EndOfContent.UNKNOWN_CONTENT;
_header = null;
if (quickStart(buffer)) return true;
}
// Request/response line
if (_state.ordinal() >= State.START.ordinal() && _state.ordinal() < State.HEADER.ordinal()) {
if (parseLine(buffer)) return true;
}
// parse headers
if (_state.ordinal() >= State.HEADER.ordinal()
&& _state.ordinal() < State.CONTENT.ordinal()) {
if (parseHeaders(buffer)) return true;
}
// parse content
if (_state.ordinal() >= State.CONTENT.ordinal() && _state.ordinal() < State.END.ordinal()) {
// Handle HEAD response
if (_responseStatus > 0 && _headResponse) {
setState(State.END);
return _handler.messageComplete();
} else {
if (parseContent(buffer)) return true;
}
}
// handle end states
if (_state == State.END) {
// eat white space
while (buffer.remaining() > 0 && buffer.get(buffer.position()) <= HttpTokens.SPACE)
buffer.get();
} else if (_state == State.CLOSE) {
// Seeking EOF
if (BufferUtils.hasContent(buffer)) {
// Just ignore data when closed
_headerBytes += buffer.remaining();
BufferUtils.clear(buffer);
if (_maxHeaderBytes > 0 && _headerBytes > _maxHeaderBytes) {
// Don't want to waste time reading data of a closed
// request
throw new IllegalStateException("too much data seeking EOF");
}
}
} else if (_state == State.CLOSED) {
BufferUtils.clear(buffer);
}
// Handle EOF
if (_eof && !buffer.hasRemaining()) {
switch (_state) {
case CLOSED:
break;
case START:
setState(State.CLOSED);
_handler.earlyEOF();
break;
case END:
case CLOSE:
setState(State.CLOSED);
break;
case EOF_CONTENT:
setState(State.CLOSED);
return _handler.messageComplete();
case CONTENT:
case CHUNKED_CONTENT:
case CHUNK_SIZE:
case CHUNK_PARAMS:
case CHUNK:
setState(State.CLOSED);
_handler.earlyEOF();
break;
default:
if (DEBUG) log.debug("{} EOF in {}", this, _state);
setState(State.CLOSED);
_handler.badMessage(400, null);
break;
}
}
} catch (BadMessageException e) {
BufferUtils.clear(buffer);
Throwable cause = e.getCause();
boolean stack =
log.isDebugEnable()
|| (!(cause instanceof NumberFormatException)
&& (cause instanceof RuntimeException || cause instanceof Error));
if (stack)
log.warn(
"bad HTTP parsed: "
+ e._code
+ (e.getReason() != null ? " " + e.getReason() : "")
+ " for "
+ _handler,
e);
else
log.warn(
"bad HTTP parsed: "
+ e._code
+ (e.getReason() != null ? " " + e.getReason() : "")
+ " for "
+ _handler);
setState(State.CLOSE);
_handler.badMessage(e.getCode(), e.getReason());
} catch (NumberFormatException | IllegalStateException e) {
BufferUtils.clear(buffer);
log.warn("parse exception: {} in {} for {}", e.toString(), _state, _handler);
if (DEBUG) log.debug("parse exception", e);
switch (_state) {
case CLOSED:
break;
case CLOSE:
_handler.earlyEOF();
break;
default:
setState(State.CLOSE);
_handler.badMessage(400, null);
}
} catch (Exception | Error e) {
BufferUtils.clear(buffer);
log.warn("parse exception: " + e.toString() + " for " + _handler, e);
switch (_state) {
case CLOSED:
break;
case CLOSE:
_handler.earlyEOF();
break;
default:
setState(State.CLOSE);
_handler.badMessage(400, null);
}
}
return false;
}
/*
* Parse the message headers and return true if the handler has signaled for
* a return
*/
protected boolean parseHeaders(ByteBuffer buffer) {
boolean handle = false;
// Process headers
while (_state.ordinal() < State.CONTENT.ordinal() && buffer.hasRemaining() && !handle) {
// process each character
byte ch = next(buffer);
if (ch == 0) break;
if (_maxHeaderBytes > 0 && ++_headerBytes > _maxHeaderBytes) {
log.warn("Header is too large > {}", _maxHeaderBytes);
throw new BadMessageException(HttpStatus.REQUEST_ENTITY_TOO_LARGE_413);
}
switch (_state) {
case HEADER:
switch (ch) {
case HttpTokens.COLON:
case HttpTokens.SPACE:
case HttpTokens.TAB:
throw new BadMessageException(HttpStatus.BAD_REQUEST_400, "Bad Continuation");
case HttpTokens.LINE_FEED:
{
_contentPosition = 0;
// End of headers!
// Was there a required host header?
if (!_host && _version == HttpVersion.HTTP_1_1 && _requestHandler != null) {
throw new BadMessageException(HttpStatus.BAD_REQUEST_400, "No Host");
}
// is it a response that cannot have a body?
if (_responseHandler != null
&& // response
(_responseStatus == 304
|| // not-modified response
_responseStatus == 204
|| // no-content
// response
_responseStatus < 200)) // 1xx response
_endOfContent = EndOfContent.NO_CONTENT; // ignore any
// other
// headers
// set
// else if we don't know framing
else if (_endOfContent == EndOfContent.UNKNOWN_CONTENT) {
if (_responseStatus == 0 // request
|| _responseStatus == 304 // not-modified
// response
|| _responseStatus == 204 // no-content response
|| _responseStatus < 200) // 1xx response
_endOfContent = EndOfContent.NO_CONTENT;
else _endOfContent = EndOfContent.EOF_CONTENT;
}
// How is the message ended?
switch (_endOfContent) {
case EOF_CONTENT:
setState(State.EOF_CONTENT);
handle = _handler.headerComplete() || handle;
return handle;
case CHUNKED_CONTENT:
setState(State.CHUNKED_CONTENT);
handle = _handler.headerComplete() || handle;
return handle;
case NO_CONTENT:
handle = _handler.headerComplete() || handle;
setState(State.END);
handle = _handler.messageComplete() || handle;
return handle;
default:
setState(State.CONTENT);
handle = _handler.headerComplete() || handle;
return handle;
}
}
default:
{
// now handle the ch
if (ch <= HttpTokens.SPACE) throw new BadMessageException();
if (buffer.hasRemaining()) {
// Try a look ahead for the known header name and value.
HttpField field =
_connectionFields == null
? null
: _connectionFields.getBest(buffer, -1, buffer.remaining());
if (field == null) field = CACHE.getBest(buffer, -1, buffer.remaining());
if (field != null) {
final String n;
final String v;
if (_strict) {
// Have to get the fields exactly from the
// buffer to match case
String fn = field.getName();
String fv = field.getValue();
n =
BufferUtils.toString(
buffer,
buffer.position() - 1,
fn.length(),
StandardCharsets.US_ASCII);
if (fv == null) v = null;
else {
v =
BufferUtils.toString(
buffer,
buffer.position() + fn.length() + 1,
fv.length(),
StandardCharsets.ISO_8859_1);
field = new HttpField(field.getHeader(), n, v);
}
} else {
n = field.getName();
v = field.getValue();
}
_header = field.getHeader();
_headerString = n;
if (v == null) {
// Header only
setState(State.HEADER_VALUE);
_string.setLength(0);
_length = 0;
buffer.position(buffer.position() + n.length() + 1);
break;
} else {
// Header and value
int pos = buffer.position() + n.length() + v.length() + 1;
byte b = buffer.get(pos);
if (b == HttpTokens.CARRIAGE_RETURN || b == HttpTokens.LINE_FEED) {
_field = field;
_valueString = v;
setState(State.HEADER_IN_VALUE);
if (b == HttpTokens.CARRIAGE_RETURN) {
_cr = true;
buffer.position(pos + 1);
} else buffer.position(pos);
break;
} else {
setState(State.HEADER_IN_VALUE);
setString(v);
buffer.position(pos);
break;
}
}
}
}
// New header
setState(State.HEADER_IN_NAME);
_string.setLength(0);
_string.append((char) ch);
_length = 1;
}
}
break;
case HEADER_IN_NAME:
if (ch == HttpTokens.COLON) {
if (_headerString == null) {
_headerString = takeString();
_header = HttpHeader.CACHE.get(_headerString);
}
_length = -1;
setState(State.HEADER_VALUE);
break;
}
if (ch > HttpTokens.SPACE) {
if (_header != null) {
setString(_header.asString());
_header = null;
_headerString = null;
}
_string.append((char) ch);
if (ch > HttpTokens.SPACE) _length = _string.length();
break;
}
throw new IllegalCharacterException(_state, ch, buffer);
case HEADER_VALUE:
if (ch > HttpTokens.SPACE || ch < 0) {
_string.append((char) (0xff & ch));
_length = _string.length();
setState(State.HEADER_IN_VALUE);
break;
}
if (ch == HttpTokens.SPACE || ch == HttpTokens.TAB) break;
if (ch == HttpTokens.LINE_FEED) {
_value = null;
_string.setLength(0);
_valueString = null;
_length = -1;
parsedHeader();
setState(State.HEADER);
break;
}
throw new IllegalCharacterException(_state, ch, buffer);
case HEADER_IN_VALUE:
if (ch >= HttpTokens.SPACE || ch < 0 || ch == HttpTokens.TAB) {
if (_valueString != null) {
setString(_valueString);
_valueString = null;
_field = null;
}
_string.append((char) (0xff & ch));
if (ch > HttpTokens.SPACE || ch < 0) _length = _string.length();
break;
}
if (ch == HttpTokens.LINE_FEED) {
if (_length > 0) {
_value = null;
_valueString = takeString();
_length = -1;
}
parsedHeader();
setState(State.HEADER);
break;
}
throw new IllegalCharacterException(_state, ch, buffer);
default:
throw new IllegalStateException(_state.toString());
}
}
return handle;
}
protected void setState(State state) {
if (DEBUG) log.debug("{} --> {}", _state, state);
_state = state;
}
/** Request that the associated data source be closed */
public void close() {
if (DEBUG) log.debug("close {}", this);
setState(State.CLOSE);
}
/** Signal that the associated data source is at EOF */
public void atEOF() {
if (DEBUG) log.debug("atEOF {}", this);
_eof = true;
}
@Override
public void dispatcher(HttpServletRequest request, HttpServletResponse response) {
String encoding = webContext.getEncoding();
try {
request.setCharacterEncoding(encoding);
} catch (Throwable t) {
log.error("dispatcher error", t);
}
response.setCharacterEncoding(encoding);
String uri = request.getRequestURI();
String prePath = request.getContextPath() + request.getServletPath();
String invokeUri = uri.substring(prePath.length());
String key = request.getMethod() + "@" + invokeUri;
String beforeIntercept = "b#" + invokeUri;
String afterIntercept = "a#" + invokeUri;
Set<MvcMetaInfo> beforeSet = webContext.getBean(beforeIntercept);
Set<MvcMetaInfo> afterSet = webContext.getBean(afterIntercept);
log.debug("uri map [{}]", key);
MvcMetaInfo mvcMetaInfo = webContext.getBean(key);
if (mvcMetaInfo != null) {
Object ret = null;
Object beforeRet = null; // 前置拦截器的返回值
MvcMetaInfo lastBefore = null; // 最后得到的前置拦截器
Object afterRet = null; // 后置拦截器的返回值
MvcMetaInfo lastAfter = null; // 最后得到的后置拦截器
// 前置拦截栈调用
if (beforeSet != null) {
for (MvcMetaInfo before : beforeSet) {
Object[] beforeP = getParams(request, response, before, null);
beforeRet = before.invoke(beforeP);
if (beforeRet != null) {
lastBefore = before;
break;
}
}
}
if (beforeRet == null) {
// controller调用
Object[] p = getParams(request, response, mvcMetaInfo, null);
ret = mvcMetaInfo.invoke(p);
// 后置拦截栈调用
if (afterSet != null) {
for (MvcMetaInfo after : afterSet) {
Object[] afterP = getParams(request, response, after, ret);
afterRet = after.invoke(afterP);
if (afterRet != null) {
lastAfter = after;
break;
}
}
}
}
// 视图渲染
try {
if (afterRet != null) {
lastAfter.getViewHandle().render(request, response, afterRet);
} else if (beforeRet != null) {
lastBefore.getViewHandle().render(request, response, beforeRet);
} else {
mvcMetaInfo.getViewHandle().render(request, response, ret);
}
} catch (Throwable t) {
log.error("dispatcher error", t);
}
} else {
String msg = request.getRequestURI() + " not register";
SystemHtmlPage.responseSystemPage(
request, response, webContext.getEncoding(), HttpServletResponse.SC_NOT_FOUND, msg);
}
}
/**
* A Parser for 1.0 and 1.1 as defined by RFC7230
*
* <p>This parser parses HTTP client and server messages from buffers passed in the {@link
* #parseNext(ByteBuffer)} method. The parsed elements of the HTTP message are passed as event calls
* to the {@link HttpHandler} instance the parser is constructed with. If the passed handler is a
* {@link RequestHandler} then server side parsing is performed and if it is a {@link
* ResponseHandler}, then client side parsing is done.
*
* <p>The contract of the {@link HttpHandler} API is that if a call returns true then the call to
* {@link #parseNext(ByteBuffer)} will return as soon as possible also with a true response.
* Typically this indicates that the parsing has reached a stage where the caller should process the
* events accumulated by the handler. It is the preferred calling style that handling such as
* calling a servlet to process a request, should be done after a true return from {@link
* #parseNext(ByteBuffer)} rather than from within the scope of a call like {@link
* RequestHandler#messageComplete()}
*
* <p>For performance, the parse is heavily dependent on the {@link Trie#getBest(ByteBuffer, int,
* int)} method to look ahead in a single pass for both the structure ( : and CRLF ) and semantic
* (which header and value) of a header. Specifically the static {@link HttpHeader#CACHE} is used to
* lookup common combinations of headers and values (eg. "Connection: close" ), or just header names
* (eg. "Connection:" ). For headers who's value is not known statically (eg. Host, COOKIE) then a
* per parser dynamic Trie of {@link HttpFields} from previous parsed messages is used to help the
* parsing of subsequent messages.
*
* <p>If the system property "org.fireflysource.http.HttpParser.STRICT" is set to true, then the
* parser will strictly pass on the exact strings received for methods and header fields. Otherwise
* a fast case insensitive string lookup is used that may alter the case of the method and/or
* headers
*
* <p>
*
* @see <a href="http://tools.ietf.org/html/rfc7230">RFC 7230</a>
*/
public class HttpParser {
private static Log log = LogFactory.getInstance().getLog("firefly-system");
public static final boolean __STRICT =
Boolean.getBoolean("org.fireflysource.http.HttpParser.STRICT");
public static final int INITIAL_URI_LENGTH = 256;
/**
* Cache of common {@link HttpField}s including:
*
* <UL>
* <LI>Common static combinations such as:
* <UL>
* <li>Connection: close
* <li>Accept-Encoding: gzip
* <li>Content-Length: 0
* </ul>
* <li>Combinations of Content-Type header for common mime types by common charsets
* <li>Most common headers with null values so that a lookup will at least determine the header
* name even if the name:value combination is not cached
* </ul>
*/
public static final Trie<HttpField> CACHE = new ArrayTrie<>(2048);
// States
public enum State {
START,
METHOD,
RESPONSE_VERSION,
SPACE1,
STATUS,
URI,
SPACE2,
REQUEST_VERSION,
REASON,
PROXY,
HEADER,
HEADER_IN_NAME,
HEADER_VALUE,
HEADER_IN_VALUE,
CONTENT,
EOF_CONTENT,
CHUNKED_CONTENT,
CHUNK_SIZE,
CHUNK_PARAMS,
CHUNK,
CHUNK_END,
END,
CLOSE, // The associated stream/endpoint should be closed
CLOSED // The associated stream/endpoint is at EOF
}
private static final EnumSet<State> __idleStates =
EnumSet.of(State.START, State.END, State.CLOSE, State.CLOSED);
private static final EnumSet<State> __completeStates =
EnumSet.of(State.END, State.CLOSE, State.CLOSED);
private final boolean DEBUG = log.isDebugEnable(); // Cache debug to help
// branch prediction
private final HttpHandler _handler;
private final RequestHandler _requestHandler;
private final ResponseHandler _responseHandler;
private final int _maxHeaderBytes;
private final boolean _strict;
private HttpField _field;
private HttpHeader _header;
private String _headerString;
private HttpHeaderValue _value;
private String _valueString;
private int _responseStatus;
private int _headerBytes;
private boolean _host;
private volatile State _state = State.START;
private volatile boolean _eof;
private HttpMethod _method;
private String _methodString;
private HttpVersion _version;
private Utf8StringBuilder _uri = new Utf8StringBuilder(INITIAL_URI_LENGTH); // Tune?
private EndOfContent _endOfContent;
private long _contentLength;
private long _contentPosition;
private int _chunkLength;
private int _chunkPosition;
private boolean _headResponse;
private boolean _cr;
private ByteBuffer _contentChunk;
private Trie<HttpField> _connectionFields;
private int _length;
private final StringBuilder _string = new StringBuilder();
static {
CACHE.put(new HttpField(HttpHeader.CONNECTION, HttpHeaderValue.CLOSE));
CACHE.put(new HttpField(HttpHeader.CONNECTION, HttpHeaderValue.KEEP_ALIVE));
CACHE.put(new HttpField(HttpHeader.CONNECTION, HttpHeaderValue.UPGRADE));
CACHE.put(new HttpField(HttpHeader.ACCEPT_ENCODING, "gzip"));
CACHE.put(new HttpField(HttpHeader.ACCEPT_ENCODING, "gzip, deflate"));
CACHE.put(new HttpField(HttpHeader.ACCEPT_ENCODING, "gzip,deflate,sdch"));
CACHE.put(new HttpField(HttpHeader.ACCEPT_LANGUAGE, "en-US,en;q=0.5"));
CACHE.put(new HttpField(HttpHeader.ACCEPT_LANGUAGE, "en-GB,en-US;q=0.8,en;q=0.6"));
CACHE.put(new HttpField(HttpHeader.ACCEPT_CHARSET, "ISO-8859-1,utf-8;q=0.7,*;q=0.3"));
CACHE.put(new HttpField(HttpHeader.ACCEPT, "*/*"));
CACHE.put(new HttpField(HttpHeader.ACCEPT, "image/png,image/*;q=0.8,*/*;q=0.5"));
CACHE.put(
new HttpField(
HttpHeader.ACCEPT, "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"));
CACHE.put(new HttpField(HttpHeader.PRAGMA, "no-cache"));
CACHE.put(
new HttpField(
HttpHeader.CACHE_CONTROL, "private, no-cache, no-cache=Set-Cookie, proxy-revalidate"));
CACHE.put(new HttpField(HttpHeader.CACHE_CONTROL, "no-cache"));
CACHE.put(new HttpField(HttpHeader.CONTENT_LENGTH, "0"));
CACHE.put(new HttpField(HttpHeader.CONTENT_ENCODING, "gzip"));
CACHE.put(new HttpField(HttpHeader.CONTENT_ENCODING, "deflate"));
CACHE.put(new HttpField(HttpHeader.TRANSFER_ENCODING, "chunked"));
CACHE.put(new HttpField(HttpHeader.EXPIRES, "Fri, 01 Jan 1990 00:00:00 GMT"));
// Add common Content types as fields
for (String type :
new String[] {
"text/plain",
"text/html",
"text/xml",
"text/json",
"application/json",
"application/x-www-form-urlencoded"
}) {
HttpField field = new PreEncodedHttpField(HttpHeader.CONTENT_TYPE, type);
CACHE.put(field);
for (String charset : new String[] {"utf-8", "iso-8859-1"}) {
CACHE.put(new PreEncodedHttpField(HttpHeader.CONTENT_TYPE, type + ";charset=" + charset));
CACHE.put(new PreEncodedHttpField(HttpHeader.CONTENT_TYPE, type + "; charset=" + charset));
CACHE.put(
new PreEncodedHttpField(
HttpHeader.CONTENT_TYPE, type + ";charset=" + charset.toUpperCase()));
CACHE.put(
new PreEncodedHttpField(
HttpHeader.CONTENT_TYPE, type + "; charset=" + charset.toUpperCase()));
}
}
// Add headers with null values so HttpParser can avoid looking up name
// again for unknown values
for (HttpHeader h : HttpHeader.values())
if (!CACHE.put(new HttpField(h, (String) null)))
throw new IllegalStateException("CACHE FULL");
// Add some more common headers
CACHE.put(new HttpField(HttpHeader.REFERER, (String) null));
CACHE.put(new HttpField(HttpHeader.IF_MODIFIED_SINCE, (String) null));
CACHE.put(new HttpField(HttpHeader.IF_NONE_MATCH, (String) null));
CACHE.put(new HttpField(HttpHeader.AUTHORIZATION, (String) null));
CACHE.put(new HttpField(HttpHeader.COOKIE, (String) null));
}
public HttpParser(RequestHandler handler) {
this(handler, -1, __STRICT);
}
public HttpParser(ResponseHandler handler) {
this(handler, -1, __STRICT);
}
public HttpParser(RequestHandler handler, int maxHeaderBytes) {
this(handler, maxHeaderBytes, __STRICT);
}
public HttpParser(ResponseHandler handler, int maxHeaderBytes) {
this(handler, maxHeaderBytes, __STRICT);
}
public HttpParser(RequestHandler handler, int maxHeaderBytes, boolean strict) {
_handler = handler;
_requestHandler = handler;
_responseHandler = null;
_maxHeaderBytes = maxHeaderBytes;
_strict = strict;
}
public HttpParser(ResponseHandler handler, int maxHeaderBytes, boolean strict) {
_handler = handler;
_requestHandler = null;
_responseHandler = handler;
_maxHeaderBytes = maxHeaderBytes;
_strict = strict;
}
public long getContentLength() {
return _contentLength;
}
public long getContentRead() {
return _contentPosition;
}
/**
* Set if a HEAD response is expected
*
* @param head true if head response is expected
*/
public void setHeadResponse(boolean head) {
_headResponse = head;
}
protected void setResponseStatus(int status) {
_responseStatus = status;
}
public State getState() {
return _state;
}
public boolean inContentState() {
return _state.ordinal() >= State.CONTENT.ordinal() && _state.ordinal() < State.END.ordinal();
}
public boolean inHeaderState() {
return _state.ordinal() < State.CONTENT.ordinal();
}
public boolean isChunking() {
return _endOfContent == EndOfContent.CHUNKED_CONTENT;
}
public boolean isStart() {
return isState(State.START);
}
public boolean isClose() {
return isState(State.CLOSE);
}
public boolean isClosed() {
return isState(State.CLOSED);
}
public boolean isIdle() {
return __idleStates.contains(_state);
}
public boolean isComplete() {
return __completeStates.contains(_state);
}
public boolean isState(State state) {
return _state == state;
}
enum CharState {
ILLEGAL,
CR,
LF,
LEGAL
}
private static final CharState[] __charState;
static {
// token = 1*tchar
// tchar = "!" / "#" / "$" / "%" / "&" / "'" / "*"
// / "+" / "-" / "." / "^" / "_" / "`" / "|" / "~"
// / DIGIT / ALPHA
// ; any VCHAR, except delimiters
// quoted-string = DQUOTE *( qdtext / quoted-pair ) DQUOTE
// qdtext = HTAB / SP /%x21 / %x23-5B / %x5D-7E / obs-text
// obs-text = %x80-FF
// comment = "(" *( ctext / quoted-pair / comment ) ")"
// ctext = HTAB / SP / %x21-27 / %x2A-5B / %x5D-7E / obs-text
// quoted-pair = "\" ( HTAB / SP / VCHAR / obs-text )
__charState = new CharState[256];
Arrays.fill(__charState, CharState.ILLEGAL);
__charState[LINE_FEED] = CharState.LF;
__charState[CARRIAGE_RETURN] = CharState.CR;
__charState[TAB] = CharState.LEGAL;
__charState[SPACE] = CharState.LEGAL;
__charState['!'] = CharState.LEGAL;
__charState['#'] = CharState.LEGAL;
__charState['$'] = CharState.LEGAL;
__charState['%'] = CharState.LEGAL;
__charState['&'] = CharState.LEGAL;
__charState['\''] = CharState.LEGAL;
__charState['*'] = CharState.LEGAL;
__charState['+'] = CharState.LEGAL;
__charState['-'] = CharState.LEGAL;
__charState['.'] = CharState.LEGAL;
__charState['^'] = CharState.LEGAL;
__charState['_'] = CharState.LEGAL;
__charState['`'] = CharState.LEGAL;
__charState['|'] = CharState.LEGAL;
__charState['~'] = CharState.LEGAL;
__charState['"'] = CharState.LEGAL;
__charState['\\'] = CharState.LEGAL;
__charState['('] = CharState.LEGAL;
__charState[')'] = CharState.LEGAL;
Arrays.fill(__charState, 0x21, 0x27 + 1, CharState.LEGAL);
Arrays.fill(__charState, 0x2A, 0x5B + 1, CharState.LEGAL);
Arrays.fill(__charState, 0x5D, 0x7E + 1, CharState.LEGAL);
Arrays.fill(__charState, 0x80, 0xFF + 1, CharState.LEGAL);
}
private byte next(ByteBuffer buffer) {
byte ch = buffer.get();
CharState s = __charState[0xff & ch];
switch (s) {
case ILLEGAL:
throw new IllegalCharacterException(_state, ch, buffer);
case LF:
_cr = false;
break;
case CR:
if (_cr) throw new BadMessageException("Bad EOL");
_cr = true;
if (buffer.hasRemaining()) {
if (_maxHeaderBytes > 0 && _state.ordinal() < State.END.ordinal()) _headerBytes++;
return next(buffer);
}
// Can return 0 here to indicate the need for more characters,
// because a real 0 in the buffer would cause a BadMessage below
return 0;
case LEGAL:
if (_cr) throw new BadMessageException("Bad EOL");
}
return ch;
}
/*
* Quick lookahead for the start state looking for a request method or a
* HTTP version, otherwise skip white space until something else to parse.
*/
private boolean quickStart(ByteBuffer buffer) {
if (_requestHandler != null) {
_method = HttpMethod.lookAheadGet(buffer);
if (_method != null) {
_methodString = _method.asString();
buffer.position(buffer.position() + _methodString.length() + 1);
setState(State.SPACE1);
return false;
}
} else if (_responseHandler != null) {
_version = HttpVersion.lookAheadGet(buffer);
if (_version != null) {
buffer.position(buffer.position() + _version.asString().length() + 1);
setState(State.SPACE1);
return false;
}
}
// Quick start look
while (_state == State.START && buffer.hasRemaining()) {
int ch = next(buffer);
if (ch > SPACE) {
_string.setLength(0);
_string.append((char) ch);
setState(_requestHandler != null ? State.METHOD : State.RESPONSE_VERSION);
return false;
} else if (ch == 0) break;
else if (ch < 0) throw new BadMessageException();
// count this white space as a header byte to avoid DOS
if (_maxHeaderBytes > 0 && ++_headerBytes > _maxHeaderBytes) {
log.warn("padding is too large > {}", _maxHeaderBytes);
throw new BadMessageException(HttpStatus.BAD_REQUEST_400);
}
}
return false;
}
private void setString(String s) {
_string.setLength(0);
_string.append(s);
_length = s.length();
}
private String takeString() {
_string.setLength(_length);
String s = _string.toString();
_string.setLength(0);
_length = -1;
return s;
}
/*
* Parse a request or response line
*/
private boolean parseLine(ByteBuffer buffer) {
boolean handle = false;
// Process headers
while (_state.ordinal() < State.HEADER.ordinal() && buffer.hasRemaining() && !handle) {
// process each character
byte ch = next(buffer);
if (ch == 0) break;
if (_maxHeaderBytes > 0 && ++_headerBytes > _maxHeaderBytes) {
if (_state == State.URI) {
log.warn("URI is too large > {}", _maxHeaderBytes);
throw new BadMessageException(HttpStatus.REQUEST_URI_TOO_LONG_414);
} else {
if (_requestHandler != null) log.warn("request is too large > {}", _maxHeaderBytes);
else log.warn("response is too large > {}", _maxHeaderBytes);
throw new BadMessageException(HttpStatus.REQUEST_ENTITY_TOO_LARGE_413);
}
}
switch (_state) {
case METHOD:
if (ch == SPACE) {
_length = _string.length();
_methodString = takeString();
HttpMethod method = HttpMethod.CACHE.get(_methodString);
if (method != null && !_strict) _methodString = method.asString();
setState(State.SPACE1);
} else if (ch < SPACE) {
if (ch == LINE_FEED) throw new BadMessageException("No URI");
else throw new IllegalCharacterException(_state, ch, buffer);
} else _string.append((char) ch);
break;
case RESPONSE_VERSION:
if (ch == HttpTokens.SPACE) {
_length = _string.length();
String version = takeString();
_version = HttpVersion.CACHE.get(version);
if (_version == null)
throw new BadMessageException(HttpStatus.BAD_REQUEST_400, "Unknown Version");
setState(State.SPACE1);
} else if (ch < HttpTokens.SPACE) throw new IllegalCharacterException(_state, ch, buffer);
else _string.append((char) ch);
break;
case SPACE1:
if (ch > HttpTokens.SPACE || ch < 0) {
if (_responseHandler != null) {
setState(State.STATUS);
setResponseStatus(ch - '0');
} else {
_uri.reset();
setState(State.URI);
// quick scan for space or EoBuffer
if (buffer.hasArray()) {
byte[] array = buffer.array();
int p = buffer.arrayOffset() + buffer.position();
int l = buffer.arrayOffset() + buffer.limit();
int i = p;
while (i < l && array[i] > HttpTokens.SPACE) i++;
int len = i - p;
_headerBytes += len;
if (_maxHeaderBytes > 0 && ++_headerBytes > _maxHeaderBytes) {
log.warn("URI is too large > {}", _maxHeaderBytes);
throw new BadMessageException(HttpStatus.REQUEST_URI_TOO_LONG_414);
}
_uri.append(array, p - 1, len + 1);
buffer.position(i - buffer.arrayOffset());
} else _uri.append(ch);
}
} else if (ch < HttpTokens.SPACE) {
throw new BadMessageException(
HttpStatus.BAD_REQUEST_400, _requestHandler != null ? "No URI" : "No Status");
}
break;
case STATUS:
if (ch == HttpTokens.SPACE) {
setState(State.SPACE2);
} else if (ch >= '0' && ch <= '9') {
_responseStatus = _responseStatus * 10 + (ch - '0');
} else if (ch < HttpTokens.SPACE && ch >= 0) {
handle = _responseHandler.startResponse(_version, _responseStatus, null) || handle;
setState(State.HEADER);
} else {
throw new BadMessageException();
}
break;
case URI:
if (ch == HttpTokens.SPACE) {
setState(State.SPACE2);
} else if (ch < HttpTokens.SPACE && ch >= 0) {
// HTTP/0.9
throw new BadMessageException("HTTP/0.9 not supported");
} else {
_uri.append(ch);
}
break;
case SPACE2:
if (ch > HttpTokens.SPACE) {
_string.setLength(0);
_string.append((char) ch);
if (_responseHandler != null) {
_length = 1;
setState(State.REASON);
} else {
setState(State.REQUEST_VERSION);
// try quick look ahead for HTTP Version
HttpVersion version;
if (buffer.position() > 0 && buffer.hasArray())
version =
HttpVersion.lookAheadGet(
buffer.array(),
buffer.arrayOffset() + buffer.position() - 1,
buffer.arrayOffset() + buffer.limit());
else version = HttpVersion.CACHE.getBest(buffer, 0, buffer.remaining());
if (version != null) {
int pos = buffer.position() + version.asString().length() - 1;
if (pos < buffer.limit()) {
byte n = buffer.get(pos);
if (n == HttpTokens.CARRIAGE_RETURN) {
_cr = true;
_version = version;
_string.setLength(0);
buffer.position(pos + 1);
} else if (n == HttpTokens.LINE_FEED) {
_version = version;
_string.setLength(0);
buffer.position(pos);
}
}
}
}
} else if (ch == HttpTokens.LINE_FEED) {
if (_responseHandler != null) {
handle = _responseHandler.startResponse(_version, _responseStatus, null) || handle;
setState(State.HEADER);
} else {
// HTTP/0.9
throw new BadMessageException("HTTP/0.9 not supported");
}
} else if (ch < 0) throw new BadMessageException();
break;
case REQUEST_VERSION:
if (ch == HttpTokens.LINE_FEED) {
if (_version == null) {
_length = _string.length();
_version = HttpVersion.CACHE.get(takeString());
}
if (_version == null)
throw new BadMessageException(HttpStatus.BAD_REQUEST_400, "Unknown Version");
// Should we try to cache header fields?
if (_connectionFields == null
&& _version.getVersion() >= HttpVersion.HTTP_1_1.getVersion()
&& _handler.getHeaderCacheSize() > 0) {
int header_cache = _handler.getHeaderCacheSize();
_connectionFields = new ArrayTernaryTrie<>(header_cache);
}
setState(State.HEADER);
handle =
_requestHandler.startRequest(_methodString, _uri.toString(), _version) || handle;
continue;
} else if (ch >= HttpTokens.SPACE) _string.append((char) ch);
else throw new BadMessageException();
break;
case REASON:
if (ch == HttpTokens.LINE_FEED) {
String reason = takeString();
setState(State.HEADER);
handle = _responseHandler.startResponse(_version, _responseStatus, reason) || handle;
continue;
} else if (ch >= HttpTokens.SPACE) {
_string.append((char) ch);
if (ch != ' ' && ch != '\t') _length = _string.length();
} else throw new BadMessageException();
break;
default:
throw new IllegalStateException(_state.toString());
}
}
return handle;
}
private void parsedHeader() {
// handler last header if any. Delayed to here just in case there was a
// continuation line (above)
if (_headerString != null || _valueString != null) {
// Handle known headers
if (_header != null) {
boolean add_to_connection_trie = false;
switch (_header) {
case CONTENT_LENGTH:
if (_endOfContent != EndOfContent.CHUNKED_CONTENT) {
try {
_contentLength = Long.parseLong(_valueString);
} catch (NumberFormatException e) {
throw new BadMessageException(HttpStatus.BAD_REQUEST_400, "Bad Content-Length");
}
if (_contentLength <= 0) _endOfContent = EndOfContent.NO_CONTENT;
else _endOfContent = EndOfContent.CONTENT_LENGTH;
}
break;
case TRANSFER_ENCODING:
if (_value == HttpHeaderValue.CHUNKED) _endOfContent = EndOfContent.CHUNKED_CONTENT;
else {
if (_valueString.endsWith(HttpHeaderValue.CHUNKED.toString()))
_endOfContent = EndOfContent.CHUNKED_CONTENT;
else if (_valueString.contains(HttpHeaderValue.CHUNKED.toString())) {
throw new BadMessageException(HttpStatus.BAD_REQUEST_400, "Bad chunking");
}
}
break;
case HOST:
_host = true;
if (!(_field instanceof HostPortHttpField)) {
_field =
new HostPortHttpField(
_header, _strict ? _headerString : _header.asString(), _valueString);
add_to_connection_trie = _connectionFields != null;
}
break;
case CONNECTION:
// Don't cache if not persistent
if (_valueString != null && _valueString.contains("close")) _connectionFields = null;
break;
case AUTHORIZATION:
case ACCEPT:
case ACCEPT_CHARSET:
case ACCEPT_ENCODING:
case ACCEPT_LANGUAGE:
case COOKIE:
case CACHE_CONTROL:
case USER_AGENT:
add_to_connection_trie = _connectionFields != null && _field == null;
break;
default:
break;
}
if (add_to_connection_trie
&& !_connectionFields.isFull()
&& _header != null
&& _valueString != null) {
if (_field == null)
_field =
new HttpField(_header, _strict ? _headerString : _header.asString(), _valueString);
_connectionFields.put(_field);
}
}
_handler.parsedHeader(
_field != null ? _field : new HttpField(_header, _headerString, _valueString));
}
_headerString = _valueString = null;
_header = null;
_value = null;
_field = null;
}
/*
* Parse the message headers and return true if the handler has signaled for
* a return
*/
protected boolean parseHeaders(ByteBuffer buffer) {
boolean handle = false;
// Process headers
while (_state.ordinal() < State.CONTENT.ordinal() && buffer.hasRemaining() && !handle) {
// process each character
byte ch = next(buffer);
if (ch == 0) break;
if (_maxHeaderBytes > 0 && ++_headerBytes > _maxHeaderBytes) {
log.warn("Header is too large > {}", _maxHeaderBytes);
throw new BadMessageException(HttpStatus.REQUEST_ENTITY_TOO_LARGE_413);
}
switch (_state) {
case HEADER:
switch (ch) {
case HttpTokens.COLON:
case HttpTokens.SPACE:
case HttpTokens.TAB:
throw new BadMessageException(HttpStatus.BAD_REQUEST_400, "Bad Continuation");
case HttpTokens.LINE_FEED:
{
_contentPosition = 0;
// End of headers!
// Was there a required host header?
if (!_host && _version == HttpVersion.HTTP_1_1 && _requestHandler != null) {
throw new BadMessageException(HttpStatus.BAD_REQUEST_400, "No Host");
}
// is it a response that cannot have a body?
if (_responseHandler != null
&& // response
(_responseStatus == 304
|| // not-modified response
_responseStatus == 204
|| // no-content
// response
_responseStatus < 200)) // 1xx response
_endOfContent = EndOfContent.NO_CONTENT; // ignore any
// other
// headers
// set
// else if we don't know framing
else if (_endOfContent == EndOfContent.UNKNOWN_CONTENT) {
if (_responseStatus == 0 // request
|| _responseStatus == 304 // not-modified
// response
|| _responseStatus == 204 // no-content response
|| _responseStatus < 200) // 1xx response
_endOfContent = EndOfContent.NO_CONTENT;
else _endOfContent = EndOfContent.EOF_CONTENT;
}
// How is the message ended?
switch (_endOfContent) {
case EOF_CONTENT:
setState(State.EOF_CONTENT);
handle = _handler.headerComplete() || handle;
return handle;
case CHUNKED_CONTENT:
setState(State.CHUNKED_CONTENT);
handle = _handler.headerComplete() || handle;
return handle;
case NO_CONTENT:
handle = _handler.headerComplete() || handle;
setState(State.END);
handle = _handler.messageComplete() || handle;
return handle;
default:
setState(State.CONTENT);
handle = _handler.headerComplete() || handle;
return handle;
}
}
default:
{
// now handle the ch
if (ch <= HttpTokens.SPACE) throw new BadMessageException();
if (buffer.hasRemaining()) {
// Try a look ahead for the known header name and value.
HttpField field =
_connectionFields == null
? null
: _connectionFields.getBest(buffer, -1, buffer.remaining());
if (field == null) field = CACHE.getBest(buffer, -1, buffer.remaining());
if (field != null) {
final String n;
final String v;
if (_strict) {
// Have to get the fields exactly from the
// buffer to match case
String fn = field.getName();
String fv = field.getValue();
n =
BufferUtils.toString(
buffer,
buffer.position() - 1,
fn.length(),
StandardCharsets.US_ASCII);
if (fv == null) v = null;
else {
v =
BufferUtils.toString(
buffer,
buffer.position() + fn.length() + 1,
fv.length(),
StandardCharsets.ISO_8859_1);
field = new HttpField(field.getHeader(), n, v);
}
} else {
n = field.getName();
v = field.getValue();
}
_header = field.getHeader();
_headerString = n;
if (v == null) {
// Header only
setState(State.HEADER_VALUE);
_string.setLength(0);
_length = 0;
buffer.position(buffer.position() + n.length() + 1);
break;
} else {
// Header and value
int pos = buffer.position() + n.length() + v.length() + 1;
byte b = buffer.get(pos);
if (b == HttpTokens.CARRIAGE_RETURN || b == HttpTokens.LINE_FEED) {
_field = field;
_valueString = v;
setState(State.HEADER_IN_VALUE);
if (b == HttpTokens.CARRIAGE_RETURN) {
_cr = true;
buffer.position(pos + 1);
} else buffer.position(pos);
break;
} else {
setState(State.HEADER_IN_VALUE);
setString(v);
buffer.position(pos);
break;
}
}
}
}
// New header
setState(State.HEADER_IN_NAME);
_string.setLength(0);
_string.append((char) ch);
_length = 1;
}
}
break;
case HEADER_IN_NAME:
if (ch == HttpTokens.COLON) {
if (_headerString == null) {
_headerString = takeString();
_header = HttpHeader.CACHE.get(_headerString);
}
_length = -1;
setState(State.HEADER_VALUE);
break;
}
if (ch > HttpTokens.SPACE) {
if (_header != null) {
setString(_header.asString());
_header = null;
_headerString = null;
}
_string.append((char) ch);
if (ch > HttpTokens.SPACE) _length = _string.length();
break;
}
throw new IllegalCharacterException(_state, ch, buffer);
case HEADER_VALUE:
if (ch > HttpTokens.SPACE || ch < 0) {
_string.append((char) (0xff & ch));
_length = _string.length();
setState(State.HEADER_IN_VALUE);
break;
}
if (ch == HttpTokens.SPACE || ch == HttpTokens.TAB) break;
if (ch == HttpTokens.LINE_FEED) {
_value = null;
_string.setLength(0);
_valueString = null;
_length = -1;
parsedHeader();
setState(State.HEADER);
break;
}
throw new IllegalCharacterException(_state, ch, buffer);
case HEADER_IN_VALUE:
if (ch >= HttpTokens.SPACE || ch < 0 || ch == HttpTokens.TAB) {
if (_valueString != null) {
setString(_valueString);
_valueString = null;
_field = null;
}
_string.append((char) (0xff & ch));
if (ch > HttpTokens.SPACE || ch < 0) _length = _string.length();
break;
}
if (ch == HttpTokens.LINE_FEED) {
if (_length > 0) {
_value = null;
_valueString = takeString();
_length = -1;
}
parsedHeader();
setState(State.HEADER);
break;
}
throw new IllegalCharacterException(_state, ch, buffer);
default:
throw new IllegalStateException(_state.toString());
}
}
return handle;
}
/**
* Parse until next Event.
*
* @param buffer the buffer to parse
* @return True if an {@link RequestHandler} method was called and it returned true;
*/
public boolean parseNext(ByteBuffer buffer) {
if (DEBUG) log.debug("parseNext s={} {}", _state, BufferUtils.toDetailString(buffer));
try {
// Start a request/response
if (_state == State.START) {
_version = null;
_method = null;
_methodString = null;
_endOfContent = EndOfContent.UNKNOWN_CONTENT;
_header = null;
if (quickStart(buffer)) return true;
}
// Request/response line
if (_state.ordinal() >= State.START.ordinal() && _state.ordinal() < State.HEADER.ordinal()) {
if (parseLine(buffer)) return true;
}
// parse headers
if (_state.ordinal() >= State.HEADER.ordinal()
&& _state.ordinal() < State.CONTENT.ordinal()) {
if (parseHeaders(buffer)) return true;
}
// parse content
if (_state.ordinal() >= State.CONTENT.ordinal() && _state.ordinal() < State.END.ordinal()) {
// Handle HEAD response
if (_responseStatus > 0 && _headResponse) {
setState(State.END);
return _handler.messageComplete();
} else {
if (parseContent(buffer)) return true;
}
}
// handle end states
if (_state == State.END) {
// eat white space
while (buffer.remaining() > 0 && buffer.get(buffer.position()) <= HttpTokens.SPACE)
buffer.get();
} else if (_state == State.CLOSE) {
// Seeking EOF
if (BufferUtils.hasContent(buffer)) {
// Just ignore data when closed
_headerBytes += buffer.remaining();
BufferUtils.clear(buffer);
if (_maxHeaderBytes > 0 && _headerBytes > _maxHeaderBytes) {
// Don't want to waste time reading data of a closed
// request
throw new IllegalStateException("too much data seeking EOF");
}
}
} else if (_state == State.CLOSED) {
BufferUtils.clear(buffer);
}
// Handle EOF
if (_eof && !buffer.hasRemaining()) {
switch (_state) {
case CLOSED:
break;
case START:
setState(State.CLOSED);
_handler.earlyEOF();
break;
case END:
case CLOSE:
setState(State.CLOSED);
break;
case EOF_CONTENT:
setState(State.CLOSED);
return _handler.messageComplete();
case CONTENT:
case CHUNKED_CONTENT:
case CHUNK_SIZE:
case CHUNK_PARAMS:
case CHUNK:
setState(State.CLOSED);
_handler.earlyEOF();
break;
default:
if (DEBUG) log.debug("{} EOF in {}", this, _state);
setState(State.CLOSED);
_handler.badMessage(400, null);
break;
}
}
} catch (BadMessageException e) {
BufferUtils.clear(buffer);
Throwable cause = e.getCause();
boolean stack =
log.isDebugEnable()
|| (!(cause instanceof NumberFormatException)
&& (cause instanceof RuntimeException || cause instanceof Error));
if (stack)
log.warn(
"bad HTTP parsed: "
+ e._code
+ (e.getReason() != null ? " " + e.getReason() : "")
+ " for "
+ _handler,
e);
else
log.warn(
"bad HTTP parsed: "
+ e._code
+ (e.getReason() != null ? " " + e.getReason() : "")
+ " for "
+ _handler);
setState(State.CLOSE);
_handler.badMessage(e.getCode(), e.getReason());
} catch (NumberFormatException | IllegalStateException e) {
BufferUtils.clear(buffer);
log.warn("parse exception: {} in {} for {}", e.toString(), _state, _handler);
if (DEBUG) log.debug("parse exception", e);
switch (_state) {
case CLOSED:
break;
case CLOSE:
_handler.earlyEOF();
break;
default:
setState(State.CLOSE);
_handler.badMessage(400, null);
}
} catch (Exception | Error e) {
BufferUtils.clear(buffer);
log.warn("parse exception: " + e.toString() + " for " + _handler, e);
switch (_state) {
case CLOSED:
break;
case CLOSE:
_handler.earlyEOF();
break;
default:
setState(State.CLOSE);
_handler.badMessage(400, null);
}
}
return false;
}
protected boolean parseContent(ByteBuffer buffer) {
int remaining = buffer.remaining();
if (remaining == 0 && _state == State.CONTENT) {
long content = _contentLength - _contentPosition;
if (content == 0) {
setState(State.END);
return _handler.messageComplete();
}
}
// Handle _content
byte ch;
while (_state.ordinal() < State.END.ordinal() && remaining > 0) {
switch (_state) {
case EOF_CONTENT:
_contentChunk = buffer.asReadOnlyBuffer();
_contentPosition += remaining;
buffer.position(buffer.position() + remaining);
if (_handler.content(_contentChunk)) return true;
break;
case CONTENT:
{
long content = _contentLength - _contentPosition;
if (content == 0) {
setState(State.END);
return _handler.messageComplete();
} else {
_contentChunk = buffer.asReadOnlyBuffer();
// limit content by expected size
if (remaining > content) {
// We can cast remaining to an int as we know that it is
// smaller than
// or equal to length which is already an int.
_contentChunk.limit(_contentChunk.position() + (int) content);
}
_contentPosition += _contentChunk.remaining();
buffer.position(buffer.position() + _contentChunk.remaining());
if (_handler.content(_contentChunk)) return true;
if (_contentPosition == _contentLength) {
setState(State.END);
return _handler.messageComplete();
}
}
break;
}
case CHUNKED_CONTENT:
{
ch = next(buffer);
if (ch > HttpTokens.SPACE) {
_chunkLength = TypeUtils.convertHexDigit(ch);
_chunkPosition = 0;
setState(State.CHUNK_SIZE);
}
break;
}
case CHUNK_SIZE:
{
ch = next(buffer);
if (ch == 0) break;
if (ch == HttpTokens.LINE_FEED) {
if (_chunkLength == 0) setState(State.CHUNK_END);
else setState(State.CHUNK);
} else if (ch <= HttpTokens.SPACE || ch == HttpTokens.SEMI_COLON)
setState(State.CHUNK_PARAMS);
else _chunkLength = _chunkLength * 16 + TypeUtils.convertHexDigit(ch);
break;
}
case CHUNK_PARAMS:
{
ch = next(buffer);
if (ch == HttpTokens.LINE_FEED) {
if (_chunkLength == 0) setState(State.CHUNK_END);
else setState(State.CHUNK);
}
break;
}
case CHUNK:
{
int chunk = _chunkLength - _chunkPosition;
if (chunk == 0) {
setState(State.CHUNKED_CONTENT);
} else {
_contentChunk = buffer.asReadOnlyBuffer();
if (remaining > chunk) _contentChunk.limit(_contentChunk.position() + chunk);
chunk = _contentChunk.remaining();
_contentPosition += chunk;
_chunkPosition += chunk;
buffer.position(buffer.position() + chunk);
if (_handler.content(_contentChunk)) return true;
}
break;
}
case CHUNK_END:
{
// TODO handle chunk trailer
ch = next(buffer);
if (ch == 0) break;
if (ch == HttpTokens.LINE_FEED) {
setState(State.END);
return _handler.messageComplete();
}
throw new IllegalCharacterException(_state, ch, buffer);
}
case CLOSED:
{
BufferUtils.clear(buffer);
return false;
}
default:
break;
}
remaining = buffer.remaining();
}
return false;
}
public boolean isAtEOF() {
return _eof;
}
/** Signal that the associated data source is at EOF */
public void atEOF() {
if (DEBUG) log.debug("atEOF {}", this);
_eof = true;
}
/** Request that the associated data source be closed */
public void close() {
if (DEBUG) log.debug("close {}", this);
setState(State.CLOSE);
}
public void reset() {
if (DEBUG) log.debug("reset {}", this);
// reset state
if (_state == State.CLOSE || _state == State.CLOSED) return;
setState(State.START);
_endOfContent = EndOfContent.UNKNOWN_CONTENT;
_contentLength = -1;
_contentPosition = 0;
_responseStatus = 0;
_contentChunk = null;
_headerBytes = 0;
_host = false;
}
protected void setState(State state) {
if (DEBUG) log.debug("{} --> {}", _state, state);
_state = state;
}
public Trie<HttpField> getFieldCache() {
return _connectionFields;
}
/* private String getProxyField(ByteBuffer buffer) {
_string.setLength(0);
_length = 0;
while (buffer.hasRemaining()) {
// process each character
byte ch = next(buffer);
if (ch <= ' ')
return _string.toString();
_string.append((char) ch);
}
throw new BadMessageException();
}*/
@Override
public String toString() {
return String.format(
"%s{s=%s,%d of %d}", getClass().getSimpleName(), _state, _contentPosition, _contentLength);
}
/*
* Event Handler interface These methods return true if the caller should
* process the events so far received (eg return from parseNext and call
* HttpChannel.handle). If multiple callbacks are called in sequence (eg
* headerComplete then messageComplete) from the same point in the parsing
* then it is sufficient for the caller to process the events only once.
*/
public interface HttpHandler {
public boolean content(ByteBuffer item);
public boolean headerComplete();
public boolean messageComplete();
/**
* This is the method called by parser when a HTTP Header name and value is found
*
* @param field The field parsed
*/
public void parsedHeader(HttpField field);
/**
* Called to signal that an EOF was received unexpectedly during the parsing of a HTTP message
*/
public void earlyEOF();
/**
* Called to signal that a bad HTTP message has been received.
*
* @param status The bad status to send
* @param reason The textual reason for badness
*/
public void badMessage(int status, String reason);
/** @return the size in bytes of the per parser header cache */
public int getHeaderCacheSize();
}
public interface RequestHandler extends HttpHandler {
/**
* This is the method called by parser when the HTTP request line is parsed
*
* @param method The method
* @param uri The raw bytes of the URI. These are copied into a ByteBuffer that will not be
* changed until this parser is reset and reused.
* @param version the http version in use
* @return true if handling parsing should return.
*/
public boolean startRequest(String method, String uri, HttpVersion version);
}
public interface ResponseHandler extends HttpHandler {
/**
* This is the method called by parser when the HTTP request line is parsed
*
* @param version the http version in use
* @param status the response status
* @param reason the response reason phrase
* @return true if handling parsing should return
*/
public boolean startResponse(HttpVersion version, int status, String reason);
}
@SuppressWarnings("serial")
private static class IllegalCharacterException extends BadMessageException {
private IllegalCharacterException(State state, byte ch, ByteBuffer buffer) {
super(400, String.format("Illegal character 0x%X", ch));
// Bug #460642 - don't reveal buffers to end user
log.warn(
String.format(
"Illegal character 0x%X in state=%s for buffer %s",
ch, state, BufferUtils.toDetailString(buffer)));
}
}
}
