Java Code Examples for org.apache.catalina.connector.Response#sendError()
The following examples show how to use
org.apache.catalina.connector.Response#sendError() .
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Example 1
| Source File: AuthenticatorBase.java From Tomcat8-Source-Read with MIT License | 6 votes |
|
private JaspicState getJaspicState(AuthConfigProvider jaspicProvider, Request request,
Response response, boolean authMandatory) throws IOException {
JaspicState jaspicState = new JaspicState();
jaspicState.messageInfo =
new MessageInfoImpl(request.getRequest(), response.getResponse(), authMandatory);
try {
CallbackHandler callbackHandler = createCallbackHandler();
ServerAuthConfig serverAuthConfig = jaspicProvider.getServerAuthConfig(
"HttpServlet", jaspicAppContextID, callbackHandler);
String authContextID = serverAuthConfig.getAuthContextID(jaspicState.messageInfo);
jaspicState.serverAuthContext = serverAuthConfig.getAuthContext(authContextID, null, null);
} catch (AuthException e) {
log.warn(sm.getString("authenticator.jaspicServerAuthContextFail"), e);
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
return null;
}
return jaspicState;
}
Example 2
| Source File: RedisSessionRequestValve.java From redis-session-manager with Apache License 2.0 | 6 votes |
|
@Override
public void invoke(Request request, Response response) throws IOException, ServletException {
Context context = request.getContext();
if (context == null) {
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, sm.getString("standardHost.noContext"));
return;
}
Thread.currentThread().setContextClassLoader(context.getLoader().getClassLoader());
boolean processed = false;
try {
if (ignorePattern == null || !ignorePattern.matcher(request.getRequestURI()).matches()) {
processed = true;
if (log.isTraceEnabled()) {
log.trace("Will save to redis after request for [" + getQueryString(request) + "]");
}
} else {
if (log.isTraceEnabled()) {
log.trace("Ignoring [" + getQueryString(request) + "]");
}
}
getNext().invoke(request, response);
} finally {
manager.afterRequest(processed);
}
}
Example 3
| Source File: StandardEngineValve.java From tomcatsrc with Apache License 2.0 | 6 votes |
|
/**
* Select the appropriate child Host to process this request,
* based on the requested server name. If no matching Host can
* be found, return an appropriate HTTP error.
*
* @param request Request to be processed
* @param response Response to be produced
*
* @exception IOException if an input/output error occurred
* @exception ServletException if a servlet error occurred
*/
@Override
public final void invoke(Request request, Response response)
throws IOException, ServletException {
// Select the Host to be used for this Request
Host host = request.getHost();
if (host == null) {
response.sendError
(HttpServletResponse.SC_BAD_REQUEST,
sm.getString("standardEngine.noHost",
request.getServerName()));
return;
}
if (request.isAsyncSupported()) {
request.setAsyncSupported(host.getPipeline().isAsyncSupported());
}
// 责任链模式：将请求传递给 Host 管道
// 从请求对象中取出该请求关联的Host（默认情况下是org.apache.catalina.core.StandardHost对象）,
// StandardHost 初始化的时候会设置基础阀 StandardHostValue
// Ask this Host to process this request
host.getPipeline().getFirst().invoke(request, response);
}
Example 4
| Source File: StandardEngineValve.java From Tomcat7.0.67 with Apache License 2.0 | 6 votes |
|
/**
* Select the appropriate child Host to process this request,
* based on the requested server name. If no matching Host can
* be found, return an appropriate HTTP error.
*
* @param request Request to be processed
* @param response Response to be produced
*
* @exception IOException if an input/output error occurred
* @exception ServletException if a servlet error occurred
*/
@Override
public final void invoke(Request request, Response response)
throws IOException, ServletException {
// Select the Host to be used for this Request
Host host = request.getHost();
if (host == null) {
response.sendError
(HttpServletResponse.SC_BAD_REQUEST,
sm.getString("standardEngine.noHost",
request.getServerName()));
return;
}
if (request.isAsyncSupported()) {
request.setAsyncSupported(host.getPipeline().isAsyncSupported());
}
// Ask this Host to process this request
host.getPipeline().getFirst().invoke(request, response);
}
Example 5
| Source File: RemoteCIDRValve.java From Tomcat8-Source-Read with MIT License | 5 votes |
|
@Override
public void invoke(final Request request, final Response response) throws IOException, ServletException {
if (isAllowed(request.getRequest().getRemoteAddr())) {
getNext().invoke(request, response);
} else {
response.sendError(HttpServletResponse.SC_FORBIDDEN);
}
}
Example 6
| Source File: RequestFilterValve.java From tomcatsrc with Apache License 2.0 | 5 votes |
|
/**
* Reject the request that was denied by this valve.
* <p>If <code>invalidAuthenticationWhenDeny</code> is true
* and the context has <code>preemptiveAuthentication</code>
* set, set an invalid authorization header to trigger basic auth.
*
* @param request The servlet request to be processed
* @param response The servlet response to be processed
* @exception IOException if an input/output error occurs
* @exception ServletException if a servlet error occurs
*/
protected void denyRequest(Request request, Response response)
throws IOException, ServletException {
if (invalidAuthenticationWhenDeny) {
Context context = request.getContext();
if (context != null && context.getPreemptiveAuthentication()) {
if (request.getCoyoteRequest().getMimeHeaders().getValue("authorization") == null) {
request.getCoyoteRequest().getMimeHeaders().addValue("authorization").setString("invalid");
}
getNext().invoke(request, response);
return;
}
}
response.sendError(denyStatus);
}
Example 7
| Source File: StandardContextValve.java From Tomcat7.0.67 with Apache License 2.0 | 5 votes |
|
/**
* Select the appropriate child Wrapper to process this request,
* based on the specified request URI. If no matching Wrapper can
* be found, return an appropriate HTTP error.
*
* @param request Request to be processed
* @param response Response to be produced
*
* @exception IOException if an input/output error occurred
* @exception ServletException if a servlet error occurred
*/
@Override
public final void invoke(Request request, Response response)
throws IOException, ServletException {
// Disallow any direct access to resources under WEB-INF or META-INF
MessageBytes requestPathMB = request.getRequestPathMB();
if ((requestPathMB.startsWithIgnoreCase("/META-INF/", 0))
|| (requestPathMB.equalsIgnoreCase("/META-INF"))
|| (requestPathMB.startsWithIgnoreCase("/WEB-INF/", 0))
|| (requestPathMB.equalsIgnoreCase("/WEB-INF"))) {
response.sendError(HttpServletResponse.SC_NOT_FOUND);
return;
}
// Select the Wrapper to be used for this Request
Wrapper wrapper = request.getWrapper();
if (wrapper == null || wrapper.isUnavailable()) {
response.sendError(HttpServletResponse.SC_NOT_FOUND);
return;
}
// Acknowledge the request
try {
response.sendAcknowledgement();
} catch (IOException ioe) {
container.getLogger().error(sm.getString(
"standardContextValve.acknowledgeException"), ioe);
request.setAttribute(RequestDispatcher.ERROR_EXCEPTION, ioe);
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
return;
}
if (request.isAsyncSupported()) {
request.setAsyncSupported(wrapper.getPipeline().isAsyncSupported());
}
wrapper.getPipeline().getFirst().invoke(request, response);
}
Example 8
| Source File: RequestFilterValve.java From Tomcat7.0.67 with Apache License 2.0 | 5 votes |
|
/**
* Reject the request that was denied by this valve.
* <p>If <code>invalidAuthenticationWhenDeny</code> is true
* and the context has <code>preemptiveAuthentication</code>
* set, set an invalid authorization header to trigger basic auth.
*
* @param request The servlet request to be processed
* @param response The servlet response to be processed
* @exception IOException if an input/output error occurs
* @exception ServletException if a servlet error occurs
*/
protected void denyRequest(Request request, Response response)
throws IOException, ServletException {
if (invalidAuthenticationWhenDeny) {
Context context = request.getContext();
if (context != null && context.getPreemptiveAuthentication()) {
if (request.getCoyoteRequest().getMimeHeaders().getValue("authorization") == null) {
request.getCoyoteRequest().getMimeHeaders().addValue("authorization").setString("invalid");
}
getNext().invoke(request, response);
return;
}
}
response.sendError(denyStatus);
}
Example 9
| Source File: StandardEngineValve.java From Tomcat8-Source-Read with MIT License | 5 votes |
|
/**
* Select the appropriate child Host to process this request,
* based on the requested server name. If no matching Host can
* be found, return an appropriate HTTP error.
*
* 选择合适的Host去执行此次请求。
*
* @param request Request to be processed
* @param response Response to be produced
*
* @exception IOException if an input/output error occurred
* @exception ServletException if a servlet error occurred
*/
@Override
public final void invoke(Request request, Response response)
throws IOException, ServletException {
// Select the Host to be used for this Request
//StandardHost.
Host host = request.getHost();
if (host == null) {
response.sendError
(HttpServletResponse.SC_BAD_REQUEST,
sm.getString("standardEngine.noHost",
request.getServerName()));
return;
}
if (request.isAsyncSupported()) {
request.setAsyncSupported(host.getPipeline().isAsyncSupported());
}
// Ask this Host to process this request
/**
* 委托对应的Host处理请求。
* {@link StandardHostValve#invoke(org.apache.catalina.connector.Request, org.apache.catalina.connector.Response)}
*/
host.getPipeline().getFirst().invoke(request, response);
}
Example 10
| Source File: RequestFilterValve.java From Tomcat8-Source-Read with MIT License | 5 votes |
|
/**
* Reject the request that was denied by this valve.
* <p>If <code>invalidAuthenticationWhenDeny</code> is true
* and the context has <code>preemptiveAuthentication</code>
* set, set an invalid authorization header to trigger basic auth.
*
* @param request The servlet request to be processed
* @param response The servlet response to be processed
* @exception IOException if an input/output error occurs
* @exception ServletException if a servlet error occurs
*/
protected void denyRequest(Request request, Response response)
throws IOException, ServletException {
if (invalidAuthenticationWhenDeny) {
Context context = request.getContext();
if (context != null && context.getPreemptiveAuthentication()) {
if (request.getCoyoteRequest().getMimeHeaders().getValue("authorization") == null) {
request.getCoyoteRequest().getMimeHeaders().addValue("authorization").setString("invalid");
}
getNext().invoke(request, response);
return;
}
}
response.sendError(denyStatus);
}
Example 11
| Source File: ErrorReportValve.java From Tomcat7.0.67 with Apache License 2.0 | 4 votes |
|
/**
* Invoke the next Valve in the sequence. When the invoke returns, check
* the response state. If the status code is greater than or equal to 400
* or an uncaught exception was thrown then the error handling will be
* triggered.
*
* @param request The servlet request to be processed
* @param response The servlet response to be created
*
* @exception IOException if an input/output error occurs
* @exception ServletException if a servlet error occurs
*/
@Override
public void invoke(Request request, Response response) throws IOException, ServletException {
// Perform the request
getNext().invoke(request, response);
if (response.isCommitted()) {
if (response.setErrorReported()) {
// Error wasn't previously reported but we can't write an error
// page because the response has already been committed. Attempt
// to flush any data that is still to be written to the client.
try {
response.flushBuffer();
} catch (Throwable t) {
ExceptionUtils.handleThrowable(t);
}
// Close immediately to signal to the client that something went
// wrong
response.getCoyoteResponse().action(ActionCode.CLOSE_NOW, null);
}
return;
}
Throwable throwable = (Throwable) request.getAttribute(RequestDispatcher.ERROR_EXCEPTION);
// If an async request is in progress and is not going to end once this
// container thread finishes, do not trigger error page handling - it
// will be triggered later if required.
if (request.isAsync() && !request.isAsyncCompleting()) {
return;
}
if (throwable != null && !response.isError()) {
// Make sure that the necessary methods have been called on the
// response. (It is possible a component may just have set the
// Throwable. Tomcat won't do that but other components might.)
// These are safe to call at this point as we know that the response
// has not been committed.
response.reset();
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
}
// One way or another, response.sendError() will have been called before
// execution reaches this point and suspended the response. Need to
// reverse that so this valve can write to the response.
response.setSuspended(false);
try {
report(request, response, throwable);
} catch (Throwable tt) {
ExceptionUtils.handleThrowable(tt);
}
}
Example 12
| Source File: RealmBase.java From Tomcat7.0.67 with Apache License 2.0 | 4 votes |
|
/**
* Enforce any user data constraint required by the security constraint
* guarding this request URI. Return <code>true</code> if this constraint
* was not violated and processing should continue, or <code>false</code>
* if we have created a response already.
*
* @param request Request we are processing
* @param response Response we are creating
* @param constraints Security constraint being checked
*
* @exception IOException if an input/output error occurs
*/
@Override
public boolean hasUserDataPermission(Request request,
Response response,
SecurityConstraint []constraints)
throws IOException {
// Is there a relevant user data constraint?
if (constraints == null || constraints.length == 0) {
if (log.isDebugEnabled())
log.debug(" No applicable security constraint defined");
return (true);
}
for(int i=0; i < constraints.length; i++) {
SecurityConstraint constraint = constraints[i];
String userConstraint = constraint.getUserConstraint();
if (userConstraint == null) {
if (log.isDebugEnabled())
log.debug(" No applicable user data constraint defined");
return (true);
}
if (userConstraint.equals(Constants.NONE_TRANSPORT)) {
if (log.isDebugEnabled())
log.debug(" User data constraint has no restrictions");
return (true);
}
}
// Validate the request against the user data constraint
if (request.getRequest().isSecure()) {
if (log.isDebugEnabled())
log.debug(" User data constraint already satisfied");
return (true);
}
// Initialize variables we need to determine the appropriate action
int redirectPort = request.getConnector().getRedirectPort();
// Is redirecting disabled?
if (redirectPort <= 0) {
if (log.isDebugEnabled())
log.debug(" SSL redirect is disabled");
response.sendError
(HttpServletResponse.SC_FORBIDDEN,
request.getRequestURI());
return (false);
}
// Redirect to the corresponding SSL port
StringBuilder file = new StringBuilder();
String protocol = "https";
String host = request.getServerName();
// Protocol
file.append(protocol).append("://").append(host);
// Host with port
if(redirectPort != 443) {
file.append(":").append(redirectPort);
}
// URI
file.append(request.getRequestURI());
String requestedSessionId = request.getRequestedSessionId();
if ((requestedSessionId != null) &&
request.isRequestedSessionIdFromURL()) {
file.append(";");
file.append(SessionConfig.getSessionUriParamName(
request.getContext()));
file.append("=");
file.append(requestedSessionId);
}
String queryString = request.getQueryString();
if (queryString != null) {
file.append('?');
file.append(queryString);
}
if (log.isDebugEnabled())
log.debug(" Redirecting to " + file.toString());
response.sendRedirect(file.toString());
return (false);
}
Example 13
| Source File: StandardContextValve.java From Tomcat8-Source-Read with MIT License | 4 votes |
|
/**
* Select the appropriate child Wrapper to process this request,
* based on the specified request URI. If no matching Wrapper can
* be found, return an appropriate HTTP error.
*
* @param request Request to be processed
* @param response Response to be produced
*
* @exception IOException if an input/output error occurred
* @exception ServletException if a servlet error occurred
*/
@Override
public final void invoke(Request request, Response response)
throws IOException, ServletException {
// Disallow any direct access to resources under WEB-INF or META-INF
MessageBytes requestPathMB = request.getRequestPathMB();
if ((requestPathMB.startsWithIgnoreCase("/META-INF/", 0))
|| (requestPathMB.equalsIgnoreCase("/META-INF"))
|| (requestPathMB.startsWithIgnoreCase("/WEB-INF/", 0))
|| (requestPathMB.equalsIgnoreCase("/WEB-INF"))) {
response.sendError(HttpServletResponse.SC_NOT_FOUND);
return;
}
// Select the Wrapper to be used for this Request
Wrapper wrapper = request.getWrapper();
if (wrapper == null || wrapper.isUnavailable()) {
response.sendError(HttpServletResponse.SC_NOT_FOUND);
return;
}
// Acknowledge the request
try {
response.sendAcknowledgement();
} catch (IOException ioe) {
container.getLogger().error(sm.getString(
"standardContextValve.acknowledgeException"), ioe);
request.setAttribute(RequestDispatcher.ERROR_EXCEPTION, ioe);
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
return;
}
if (request.isAsyncSupported()) {
request.setAsyncSupported(wrapper.getPipeline().isAsyncSupported());
}
/**
* 委托对应的Wrapper去处理请求。
* {@link StandardWrapperValve#invoke(org.apache.catalina.connector.Request, org.apache.catalina.connector.Response)}
*/
wrapper.getPipeline().getFirst().invoke(request, response);
}
Example 14
| Source File: RealmBase.java From Tomcat8-Source-Read with MIT License | 4 votes |
|
/**
* Enforce any user data constraint required by the security constraint
* guarding this request URI. Return <code>true</code> if this constraint
* was not violated and processing should continue, or <code>false</code>
* if we have created a response already.
*
* @param request Request we are processing
* @param response Response we are creating
* @param constraints Security constraint being checked
*
* @exception IOException if an input/output error occurs
*/
@Override
public boolean hasUserDataPermission(Request request,
Response response,
SecurityConstraint []constraints)
throws IOException {
// Is there a relevant user data constraint?
if (constraints == null || constraints.length == 0) {
if (log.isDebugEnabled())
log.debug(" No applicable security constraint defined");
return true;
}
for(int i=0; i < constraints.length; i++) {
SecurityConstraint constraint = constraints[i];
String userConstraint = constraint.getUserConstraint();
if (userConstraint == null) {
if (log.isDebugEnabled())
log.debug(" No applicable user data constraint defined");
return true;
}
if (userConstraint.equals(TransportGuarantee.NONE.name())) {
if (log.isDebugEnabled())
log.debug(" User data constraint has no restrictions");
return true;
}
}
// Validate the request against the user data constraint
if (request.getRequest().isSecure()) {
if (log.isDebugEnabled())
log.debug(" User data constraint already satisfied");
return true;
}
// Initialize variables we need to determine the appropriate action
int redirectPort = request.getConnector().getRedirectPort();
// Is redirecting disabled?
if (redirectPort <= 0) {
if (log.isDebugEnabled())
log.debug(" SSL redirect is disabled");
response.sendError
(HttpServletResponse.SC_FORBIDDEN,
request.getRequestURI());
return false;
}
// Redirect to the corresponding SSL port
StringBuilder file = new StringBuilder();
String protocol = "https";
String host = request.getServerName();
// Protocol
file.append(protocol).append("://").append(host);
// Host with port
if(redirectPort != 443) {
file.append(":").append(redirectPort);
}
// URI
file.append(request.getRequestURI());
String requestedSessionId = request.getRequestedSessionId();
if ((requestedSessionId != null) &&
request.isRequestedSessionIdFromURL()) {
file.append(";");
file.append(SessionConfig.getSessionUriParamName(
request.getContext()));
file.append("=");
file.append(requestedSessionId);
}
String queryString = request.getQueryString();
if (queryString != null) {
file.append('?');
file.append(queryString);
}
if (log.isDebugEnabled())
log.debug(" Redirecting to " + file.toString());
response.sendRedirect(file.toString(), transportGuaranteeRedirectStatus);
return false;
}
Example 15
| Source File: ErrorReportValve.java From tomcatsrc with Apache License 2.0 | 4 votes |
|
/**
* Invoke the next Valve in the sequence. When the invoke returns, check
* the response state. If the status code is greater than or equal to 400
* or an uncaught exception was thrown then the error handling will be
* triggered.
*
* @param request The servlet request to be processed
* @param response The servlet response to be created
*
* @exception IOException if an input/output error occurs
* @exception ServletException if a servlet error occurs
*/
@Override
public void invoke(Request request, Response response) throws IOException, ServletException {
// Perform the request
getNext().invoke(request, response);
if (response.isCommitted()) {
if (response.setErrorReported()) {
// Error wasn't previously reported but we can't write an error
// page because the response has already been committed. Attempt
// to flush any data that is still to be written to the client.
try {
response.flushBuffer();
} catch (Throwable t) {
ExceptionUtils.handleThrowable(t);
}
// Close immediately to signal to the client that something went
// wrong
response.getCoyoteResponse().action(ActionCode.CLOSE_NOW, null);
}
return;
}
Throwable throwable = (Throwable) request.getAttribute(RequestDispatcher.ERROR_EXCEPTION);
// If an async request is in progress and is not going to end once this
// container thread finishes, do not process any error page here.
if (request.isAsync() && !request.isAsyncCompleting()) {
return;
}
if (throwable != null && !response.isError()) {
// Make sure that the necessary methods have been called on the
// response. (It is possible a component may just have set the
// Throwable. Tomcat won't do that but other components might.)
// These are safe to call at this point as we know that the response
// has not been committed.
response.reset();
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
}
// One way or another, response.sendError() will have been called before
// execution reaches this point and suspended the response. Need to
// reverse that so this valve can write to the response.
response.setSuspended(false);
try {
report(request, response, throwable);
} catch (Throwable tt) {
ExceptionUtils.handleThrowable(tt);
}
}
Example 16
| Source File: RealmBase.java From tomcatsrc with Apache License 2.0 | 4 votes |
|
/**
* Enforce any user data constraint required by the security constraint
* guarding this request URI. Return <code>true</code> if this constraint
* was not violated and processing should continue, or <code>false</code>
* if we have created a response already.
*
* @param request Request we are processing
* @param response Response we are creating
* @param constraints Security constraint being checked
*
* @exception IOException if an input/output error occurs
*/
@Override
public boolean hasUserDataPermission(Request request,
Response response,
SecurityConstraint []constraints)
throws IOException {
// Is there a relevant user data constraint?
if (constraints == null || constraints.length == 0) {
if (log.isDebugEnabled())
log.debug(" No applicable security constraint defined");
return (true);
}
for(int i=0; i < constraints.length; i++) {
SecurityConstraint constraint = constraints[i];
String userConstraint = constraint.getUserConstraint();
if (userConstraint == null) {
if (log.isDebugEnabled())
log.debug(" No applicable user data constraint defined");
return (true);
}
if (userConstraint.equals(Constants.NONE_TRANSPORT)) {
if (log.isDebugEnabled())
log.debug(" User data constraint has no restrictions");
return (true);
}
}
// Validate the request against the user data constraint
if (request.getRequest().isSecure()) {
if (log.isDebugEnabled())
log.debug(" User data constraint already satisfied");
return (true);
}
// Initialize variables we need to determine the appropriate action
int redirectPort = request.getConnector().getRedirectPort();
// Is redirecting disabled?
if (redirectPort <= 0) {
if (log.isDebugEnabled())
log.debug(" SSL redirect is disabled");
response.sendError
(HttpServletResponse.SC_FORBIDDEN,
request.getRequestURI());
return (false);
}
// Redirect to the corresponding SSL port
StringBuilder file = new StringBuilder();
String protocol = "https";
String host = request.getServerName();
// Protocol
file.append(protocol).append("://").append(host);
// Host with port
if(redirectPort != 443) {
file.append(":").append(redirectPort);
}
// URI
file.append(request.getRequestURI());
String requestedSessionId = request.getRequestedSessionId();
if ((requestedSessionId != null) &&
request.isRequestedSessionIdFromURL()) {
file.append(";");
file.append(SessionConfig.getSessionUriParamName(
request.getContext()));
file.append("=");
file.append(requestedSessionId);
}
String queryString = request.getQueryString();
if (queryString != null) {
file.append('?');
file.append(queryString);
}
if (log.isDebugEnabled())
log.debug(" Redirecting to " + file.toString());
response.sendRedirect(file.toString(), transportGuaranteeRedirectStatus);
return (false);
}
Example 17
| Source File: StandardContextValve.java From tomcatsrc with Apache License 2.0 | 4 votes |
|
/**
* Select the appropriate child Wrapper to process this request,
* based on the specified request URI. If no matching Wrapper can
* be found, return an appropriate HTTP error.
*
* @param request Request to be processed
* @param response Response to be produced
*
* @exception IOException if an input/output error occurred
* @exception ServletException if a servlet error occurred
*/
@Override
public final void invoke(Request request, Response response)
throws IOException, ServletException {
// Disallow any direct access to resources under WEB-INF or META-INF
MessageBytes requestPathMB = request.getRequestPathMB();
if ((requestPathMB.startsWithIgnoreCase("/META-INF/", 0))
|| (requestPathMB.equalsIgnoreCase("/META-INF"))
|| (requestPathMB.startsWithIgnoreCase("/WEB-INF/", 0))
|| (requestPathMB.equalsIgnoreCase("/WEB-INF"))) {
response.sendError(HttpServletResponse.SC_NOT_FOUND);
return;
}
// Select the Wrapper to be used for this Request
Wrapper wrapper = request.getWrapper();
if (wrapper == null || wrapper.isUnavailable()) {
response.sendError(HttpServletResponse.SC_NOT_FOUND);
return;
}
// Acknowledge the request
try {
response.sendAcknowledgement();
} catch (IOException ioe) {
container.getLogger().error(sm.getString(
"standardContextValve.acknowledgeException"), ioe);
request.setAttribute(RequestDispatcher.ERROR_EXCEPTION, ioe);
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
return;
}
if (request.isAsyncSupported()) {
request.setAsyncSupported(wrapper.getPipeline().isAsyncSupported());
}
// 责任链模式：将请求传递给 Wrapper 管道
// 从请求对象中取出该请求关联的 Wrapper（默认情况下是org.apache.catalina.core.StandardWrapper对象）,
// StandardWrapper对象 初始化的时候会设置基础阀 StandardWrapperValve
wrapper.getPipeline().getFirst().invoke(request, response);
}
Example 18
| Source File: ErrorReportValve.java From Tomcat8-Source-Read with MIT License | 4 votes |
|
/**
* Invoke the next Valve in the sequence. When the invoke returns, check
* the response state. If the status code is greater than or equal to 400
* or an uncaught exception was thrown then the error handling will be
* triggered.
*
* @param request The servlet request to be processed
* @param response The servlet response to be created
*
* @exception IOException if an input/output error occurs
* @exception ServletException if a servlet error occurs
*/
@Override
public void invoke(Request request, Response response) throws IOException, ServletException {
// Perform the request
getNext().invoke(request, response);
if (response.isCommitted()) {
if (response.setErrorReported()) {
// Error wasn't previously reported but we can't write an error
// page because the response has already been committed. Attempt
// to flush any data that is still to be written to the client.
try {
response.flushBuffer();
} catch (Throwable t) {
ExceptionUtils.handleThrowable(t);
}
// Close immediately to signal to the client that something went
// wrong
response.getCoyoteResponse().action(ActionCode.CLOSE_NOW,
request.getAttribute(RequestDispatcher.ERROR_EXCEPTION));
}
return;
}
Throwable throwable = (Throwable) request.getAttribute(RequestDispatcher.ERROR_EXCEPTION);
// If an async request is in progress and is not going to end once this
// container thread finishes, do not process any error page here.
if (request.isAsync() && !request.isAsyncCompleting()) {
return;
}
if (throwable != null && !response.isError()) {
// Make sure that the necessary methods have been called on the
// response. (It is possible a component may just have set the
// Throwable. Tomcat won't do that but other components might.)
// These are safe to call at this point as we know that the response
// has not been committed.
response.reset();
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
}
// One way or another, response.sendError() will have been called before
// execution reaches this point and suspended the response. Need to
// reverse that so this valve can write to the response.
response.setSuspended(false);
try {
report(request, response, throwable);
} catch (Throwable tt) {
ExceptionUtils.handleThrowable(tt);
}
}
