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/*
* JBoss, Home of Professional Open Source.
* Copyright 2015 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.wildfly.security.http;
import static org.wildfly.security.http.ElytronMessages.httpClientCert;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetSocketAddress;
import java.net.URI;
import java.security.cert.Certificate;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.function.Supplier;
import javax.net.ssl.SSLPeerUnverifiedException;
import javax.net.ssl.SSLSession;
import org.wildfly.security.auth.server.SecurityIdentity;
/**
* The SPI to be implemented to bridge the Elytron APIs with the available APIs
* of the web server being integrated with.
*
* @author Darran Lofthouse
*/
public interface HttpExchangeSpi extends HttpServerScopes {
/**
* Get a list of all of the values set for the specified header within the HTTP request.
*
* @param headerName the not {@code null} name of the header the values are required for.
* @return a list of the values set for this header, if the header is not set on the request then {@code null} should be returned.
*/
List getRequestHeaderValues(final String headerName);
/**
* Add the specified header and value to the end of the current response headers,
*
* @param headerName the name of the header.
* @param headerValue the value of the header.
*/
void addResponseHeader(final String headerName, final String headerValue);
/**
* Get the first value for the header specified in the HTTP request.
*
* A {@code default} implementation of this method is provided although implementations of this SPI may choose to provide their own optimised implementation.
*
* @param headerName the not {@code null} name of the header the value is required for.
* @return the value for the first instance of the header specified, if the header is not present then {@code null} should be returned instead.
*/
default String getFirstRequestHeaderValue(final String headerName) {
List headerValues = getRequestHeaderValues(headerName);
return headerValues != null && headerValues.size() > 0 ? headerValues.get(0) : null;
}
/**
* Get the {@link SSLSession} (if any) that has been established for the connection in use.
*
* @return the {@link SSLSession} (if any) that has been established for the connection in use, or {@code null} if none
* exists.
*/
default SSLSession getSSLSession() {
return null;
}
/**
* Get the peer certificates (if any) associated with the current connection.
*
* Although re-negotiation may be requested the underlying implementation may not support re-negotiation and will continue
* to return {@code null}. {@code null} will also still be returned if after re-negotiation peer certificates are still not
* available.
*
* @param renegotiate if no certificates are available should re-negotiation of the session be attempted.
* @return the peer certificates associated with the current connection or {@code null} if none associated.
*/
default Certificate[] getPeerCertificates(boolean renegotiate) {
SSLSession sslSession = getSSLSession();
if (sslSession != null) {
try {
return sslSession.getPeerCertificates();
} catch (SSLPeerUnverifiedException e) {
httpClientCert.trace("Peer Unverified", e);
}
}
return null;
}
/**
* Set the required status code.
*
* This method is only expected to be called once after a response code has been selected.
*
* @param statusCode the desired status code.
*/
void setStatusCode(final int statusCode);
/**
* Notification that authentication has been completed for a specific identity using a specific authentication mechanism.
*
* @param securityIdentity the identity of the authenticated account.
* @param mechanismName the name of the mechanism that was used to authenticate the account.
*/
void authenticationComplete(final SecurityIdentity securityIdentity, final String mechanismName);
/**
* Notification that authentication has failed using the mechanism specified.
*
* @param message an error message describing the failure
* @param mechanismName a failed mechanism name
*/
void authenticationFailed(final String message, final String mechanismName);
/**
* Notification that authentication has failed for a specific mechanism due to being a bad request.
*
* @param error an exception to describe the error.
* @param mechanismName a failed mechanism name
*/
void badRequest(final HttpAuthenticationException error, final String mechanismName);
/**
* Returns the name of the HTTP method with which this request was made, for example, GET, POST, or PUT.
*
* @return a String specifying the name of the method with which this request was made
*/
String getRequestMethod();
/**
* Get the URI representation for the current request.
*
* @return the URI representation for the current request.
*/
URI getRequestURI();
/**
* Get the request path. This is the path relative to the context path. E.g.: for a request to
* http://my.appserver.com/my-application/path/sub-path this method is going to return /path/sub-path.
*
* @return the request relative path
*/
String getRequestPath();
/**
* Returns the parameters received in the current request.
*
* These parameters will be from both the query string and the form data when available.
*
* Where a parameter is named both in the query string and in the form data the list will contain the values from the query
* string followed by the values from the form data.
*
* @return the parameters received in the current request.
*/
Map> getRequestParameters();
/**
* Returns the names of all parameters either from the query string or from the form data where available.
*
* @return the names of all parameters either from the query string or from the form data where available.
*/
default Set getRequestParameterNames() {
return getRequestParameters().keySet();
}
/**
* Return the values for the parameter specified, where a parameter is specified both in the query string and in the form data the query string values will be first in the array.
*
* @param name the name of the desires parameter values.
* @return the values for the parameter specified or {@code null} if the parameter was not in the request.
*/
default List getRequestParameterValues(String name) {
Map> parameters = getRequestParameters();
if (parameters != null) {
return parameters.get(name);
}
return null;
}
/**
* Get the first value for the parameter specified.
*
* @param name the name of the parameter the first value is required for.
* @return the first value of the named parameter or {@code null} if the paramter is not available.
*/
default String getFirstRequestParameterValue(String name) {
List values = getRequestParameterValues(name);
if (values != null && values.size() > 0) {
return values.get(0);
}
return null;
}
/**
* Returns a {@link List} containing all of the {@link HttpServerCookie} objects the client sent with this request. This method should return an empty {@code List} if no cookies were sent.
*
* @return a {@link List} of all the cookies included with this request.
*/
List getCookies();
/**
* Returns the request input stream.
*
* @return the input stream or {@code null} if not supported.
*/
InputStream getRequestInputStream();
/**
* Get the source address of the HTTP request.
*
* @return the source address of the HTTP request
*/
InetSocketAddress getSourceAddress();
/**
* Sets a response cookie.
*
* @param cookie the cookie
*/
void setResponseCookie(HttpServerCookie cookie);
/**
* Returns the response output stream.
*
* @return the output stream or {@code null} if not supported.
*/
OutputStream getResponseOutputStream();
/**
* Forward the current request to a different path.
*
* @return the desired status code from forwarding or {@code -1} if forwarding was not successful.
*/
default int forward(String path) {
return -1;
}
/**
* Returns a remotely authenticated user
*
* @return the remote user principal or {@code null} if no remote user was authenticated.
*/
default String getRemoteUser() {
return null;
}
/**
* Suspend the current request so that it can be subsequently resumed.
*
* The server may use any strategy it deems appropriate to suspend the current request and store the state ready for a subsequent request.
*
* @return {@code true} if suspension is supported, {@code false} otherwise.
*/
default boolean suspendRequest() {
return false;
}
/**
* Resume a previously suspended request.
*
* @return {@code true} if resuming a request is supported, {@code false} otherwise.
*/
default boolean resumeRequest() {
return false;
}
/**
* Set the request input stream supplier. The default implementation does nothing.
*
* @param requestInputStreamSupplier the request input stream supplier
*/
default void setRequestInputStreamSupplier(Supplier requestInputStreamSupplier) {}
}