/
HttpConfiguration.java
703 lines (633 loc) · 24 KB
/
HttpConfiguration.java
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//
// ========================================================================
// Copyright (c) 1995-2021 Mort Bay Consulting Pty Ltd and others.
//
// This program and the accompanying materials are made available under the
// terms of the Eclipse Public License v. 2.0 which is available at
// https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
// which is available at https://www.apache.org/licenses/LICENSE-2.0.
//
// SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
// ========================================================================
//
package org.eclipse.jetty.server;
import java.io.IOException;
import java.util.List;
import java.util.Set;
import java.util.concurrent.CopyOnWriteArrayList;
import org.eclipse.jetty.http.CookieCompliance;
import org.eclipse.jetty.http.HttpCompliance;
import org.eclipse.jetty.http.HttpMethod;
import org.eclipse.jetty.http.HttpScheme;
import org.eclipse.jetty.http.UriCompliance;
import org.eclipse.jetty.util.Index;
import org.eclipse.jetty.util.Jetty;
import org.eclipse.jetty.util.annotation.ManagedAttribute;
import org.eclipse.jetty.util.annotation.ManagedObject;
import org.eclipse.jetty.util.component.Dumpable;
import org.eclipse.jetty.util.component.DumpableCollection;
/**
* HTTP Configuration.
* <p>This class is a holder of HTTP configuration for use by the
* {@link HttpChannel} class. Typically an HTTPConfiguration instance
* is instantiated and passed to a {@link ConnectionFactory} that can
* create HTTP channels (e.g. HTTP, AJP or FCGI).</p>
* <p>The configuration held by this class is not for the wire protocol,
* but for the interpretation and handling of HTTP requests that could
* be transported by a variety of protocols.
* </p>
*/
@ManagedObject("HTTP Configuration")
public class HttpConfiguration implements Dumpable
{
public static final String SERVER_VERSION = "Jetty(" + Jetty.VERSION + ")";
private final List<Customizer> _customizers = new CopyOnWriteArrayList<>();
private final Index.Mutable<Boolean> _formEncodedMethods = new Index.Builder<Boolean>()
.caseSensitive(false)
.mutable()
.build();
private int _outputBufferSize = 32 * 1024;
private int _outputAggregationSize = _outputBufferSize / 4;
private int _requestHeaderSize = 8 * 1024;
private int _responseHeaderSize = 8 * 1024;
private int _headerCacheSize = 1024;
private boolean _headerCacheCaseSensitive = false;
private int _securePort;
private long _idleTimeout = -1;
private String _secureScheme = HttpScheme.HTTPS.asString();
private boolean _sendServerVersion = true;
private boolean _sendXPoweredBy = false;
private boolean _sendDateHeader = true;
private boolean _delayDispatchUntilContent = true;
private boolean _persistentConnectionsEnabled = true;
private int _maxErrorDispatches = 10;
private boolean _useInputDirectByteBuffers = true;
private boolean _useOutputDirectByteBuffers = true;
private long _minRequestDataRate;
private long _minResponseDataRate;
private HttpCompliance _httpCompliance = HttpCompliance.RFC7230;
private UriCompliance _uriCompliance = UriCompliance.DEFAULT;
private CookieCompliance _requestCookieCompliance = CookieCompliance.RFC6265;
private CookieCompliance _responseCookieCompliance = CookieCompliance.RFC6265;
private boolean _notifyRemoteAsyncErrors = true;
private boolean _relativeRedirectAllowed;
/**
* <p>An interface that allows a request object to be customized
* for a particular HTTP connector configuration. Unlike Filters, customizer are
* applied before the request is submitted for processing and can be specific to the
* connector on which the request was received.</p>
*
* <p>Typically Customizers perform tasks such as:</p>
* <ul>
* <li>process header fields that may be injected by a proxy or load balancer.
* <li>setup attributes that may come from the connection/connector such as SSL Session IDs
* <li>Allow a request to be marked as secure or authenticated if those have been offloaded
* and communicated by header, cookie or other out-of-band mechanism
* <li>Set request attributes/fields that are determined by the connector on which the
* request was received
* </ul>
*/
public interface Customizer
{
public void customize(Connector connector, HttpConfiguration channelConfig, Request request);
}
public interface ConnectionFactory
{
HttpConfiguration getHttpConfiguration();
}
public HttpConfiguration()
{
_formEncodedMethods.put(HttpMethod.POST.asString(), Boolean.TRUE);
_formEncodedMethods.put(HttpMethod.PUT.asString(), Boolean.TRUE);
}
/**
* Creates a configuration from another.
*
* @param config The configuration to copy.
*/
public HttpConfiguration(HttpConfiguration config)
{
_customizers.addAll(config._customizers);
for (String s : config._formEncodedMethods.keySet())
{
_formEncodedMethods.put(s, Boolean.TRUE);
}
_outputBufferSize = config._outputBufferSize;
_outputAggregationSize = config._outputAggregationSize;
_requestHeaderSize = config._requestHeaderSize;
_responseHeaderSize = config._responseHeaderSize;
_headerCacheSize = config._headerCacheSize;
_headerCacheCaseSensitive = config._headerCacheCaseSensitive;
_secureScheme = config._secureScheme;
_securePort = config._securePort;
_idleTimeout = config._idleTimeout;
_sendDateHeader = config._sendDateHeader;
_sendServerVersion = config._sendServerVersion;
_sendXPoweredBy = config._sendXPoweredBy;
_delayDispatchUntilContent = config._delayDispatchUntilContent;
_persistentConnectionsEnabled = config._persistentConnectionsEnabled;
_maxErrorDispatches = config._maxErrorDispatches;
_useInputDirectByteBuffers = config._useInputDirectByteBuffers;
_useOutputDirectByteBuffers = config._useOutputDirectByteBuffers;
_minRequestDataRate = config._minRequestDataRate;
_minResponseDataRate = config._minResponseDataRate;
_httpCompliance = config._httpCompliance;
_requestCookieCompliance = config._requestCookieCompliance;
_responseCookieCompliance = config._responseCookieCompliance;
_notifyRemoteAsyncErrors = config._notifyRemoteAsyncErrors;
_relativeRedirectAllowed = config._relativeRedirectAllowed;
_uriCompliance = config._uriCompliance;
}
/**
* <p>Adds a {@link Customizer} that is invoked for every
* request received.</p>
* <p>Customizers are often used to interpret optional headers (eg {@link ForwardedRequestCustomizer}) or
* optional protocol semantics (eg {@link SecureRequestCustomizer}).
*
* @param customizer A request customizer
*/
public void addCustomizer(Customizer customizer)
{
_customizers.add(customizer);
}
public List<Customizer> getCustomizers()
{
return _customizers;
}
public <T> T getCustomizer(Class<T> type)
{
for (Customizer c : _customizers)
{
if (type.isAssignableFrom(c.getClass()))
return (T)c;
}
return null;
}
@ManagedAttribute("The size in bytes of the output buffer used to aggregate HTTP output")
public int getOutputBufferSize()
{
return _outputBufferSize;
}
@ManagedAttribute("The maximum size in bytes for HTTP output to be aggregated")
public int getOutputAggregationSize()
{
return _outputAggregationSize;
}
@ManagedAttribute("The maximum allowed size in bytes for an HTTP request header")
public int getRequestHeaderSize()
{
return _requestHeaderSize;
}
@ManagedAttribute("The maximum allowed size in bytes for an HTTP response header")
public int getResponseHeaderSize()
{
return _responseHeaderSize;
}
@ManagedAttribute("The maximum allowed size in Trie nodes for an HTTP header field cache")
public int getHeaderCacheSize()
{
return _headerCacheSize;
}
@ManagedAttribute("True if the header field cache is case sensitive")
public boolean isHeaderCacheCaseSensitive()
{
return _headerCacheCaseSensitive;
}
@ManagedAttribute("The port to which Integral or Confidential security constraints are redirected")
public int getSecurePort()
{
return _securePort;
}
@ManagedAttribute("The scheme with which Integral or Confidential security constraints are redirected")
public String getSecureScheme()
{
return _secureScheme;
}
@ManagedAttribute("Whether persistent connections are enabled")
public boolean isPersistentConnectionsEnabled()
{
return _persistentConnectionsEnabled;
}
/**
* <p>The max idle time is applied to an HTTP request for IO operations and
* delayed dispatch.</p>
*
* @return the max idle time in ms or if == 0 implies an infinite timeout, <0
* implies no HTTP channel timeout and the connection timeout is used instead.
*/
@ManagedAttribute("The idle timeout in ms for I/O operations during the handling of an HTTP request")
public long getIdleTimeout()
{
return _idleTimeout;
}
/**
* <p>The max idle time is applied to an HTTP request for IO operations and
* delayed dispatch.</p>
*
* @param timeoutMs the max idle time in ms or if == 0 implies an infinite timeout, <0
* implies no HTTP channel timeout and the connection timeout is used instead.
*/
public void setIdleTimeout(long timeoutMs)
{
_idleTimeout = timeoutMs;
}
public void setPersistentConnectionsEnabled(boolean persistentConnectionsEnabled)
{
_persistentConnectionsEnabled = persistentConnectionsEnabled;
}
public void setSendServerVersion(boolean sendServerVersion)
{
_sendServerVersion = sendServerVersion;
}
@ManagedAttribute("Whether to send the Server header in responses")
public boolean getSendServerVersion()
{
return _sendServerVersion;
}
public void writePoweredBy(Appendable out, String preamble, String postamble) throws IOException
{
if (getSendServerVersion())
{
if (preamble != null)
out.append(preamble);
out.append(Jetty.POWERED_BY);
if (postamble != null)
out.append(postamble);
}
}
public void setSendXPoweredBy(boolean sendXPoweredBy)
{
_sendXPoweredBy = sendXPoweredBy;
}
@ManagedAttribute("Whether to send the X-Powered-By header in responses")
public boolean getSendXPoweredBy()
{
return _sendXPoweredBy;
}
/**
* Indicates if the {@code Date} header should be sent in responses.
*
* @param sendDateHeader true if the {@code Date} header should be sent in responses
* @see <a href="https://tools.ietf.org/html/rfc7231#section-7.1.1.2">HTTP/1.1 Standard Header: Date</a>
* @see #getSendDateHeader()
*/
public void setSendDateHeader(boolean sendDateHeader)
{
_sendDateHeader = sendDateHeader;
}
/**
* Indicates if the {@code Date} header will be sent in responses.
*
* @return true by default
*/
@ManagedAttribute("Whether to send the Date header in responses")
public boolean getSendDateHeader()
{
return _sendDateHeader;
}
/**
* @param delay if true, delays the application dispatch until content is available (defaults to true)
*/
public void setDelayDispatchUntilContent(boolean delay)
{
_delayDispatchUntilContent = delay;
}
@ManagedAttribute("Whether to delay the application dispatch until content is available")
public boolean isDelayDispatchUntilContent()
{
return _delayDispatchUntilContent;
}
/**
* @param useInputDirectByteBuffers whether to use direct ByteBuffers for reading
*/
public void setUseInputDirectByteBuffers(boolean useInputDirectByteBuffers)
{
_useInputDirectByteBuffers = useInputDirectByteBuffers;
}
@ManagedAttribute("Whether to use direct ByteBuffers for reading")
public boolean isUseInputDirectByteBuffers()
{
return _useInputDirectByteBuffers;
}
/**
* @param useOutputDirectByteBuffers whether to use direct ByteBuffers for writing
*/
public void setUseOutputDirectByteBuffers(boolean useOutputDirectByteBuffers)
{
_useOutputDirectByteBuffers = useOutputDirectByteBuffers;
}
@ManagedAttribute("Whether to use direct ByteBuffers for writing")
public boolean isUseOutputDirectByteBuffers()
{
return _useOutputDirectByteBuffers;
}
/**
* <p>Sets the {@link Customizer}s that are invoked for every
* request received.</p>
* <p>Customizers are often used to interpret optional headers (eg {@link ForwardedRequestCustomizer}) or
* optional protocol semantics (eg {@link SecureRequestCustomizer}).</p>
*
* @param customizers the list of customizers
*/
public void setCustomizers(List<Customizer> customizers)
{
_customizers.clear();
_customizers.addAll(customizers);
}
/**
* Set the size of the buffer into which response content is aggregated
* before being sent to the client. A larger buffer can improve performance by allowing
* a content producer to run without blocking, however larger buffers consume more memory and
* may induce some latency before a client starts processing the content.
*
* @param outputBufferSize buffer size in bytes.
*/
public void setOutputBufferSize(int outputBufferSize)
{
_outputBufferSize = outputBufferSize;
setOutputAggregationSize(outputBufferSize / 4);
}
/**
* Set the max size of the response content write that is copied into the aggregate buffer.
* Writes that are smaller of this size are copied into the aggregate buffer, while
* writes that are larger of this size will cause the aggregate buffer to be flushed
* and the write to be executed without being copied.
*
* @param outputAggregationSize the max write size that is aggregated
*/
public void setOutputAggregationSize(int outputAggregationSize)
{
_outputAggregationSize = outputAggregationSize;
}
/**
* <p>Larger headers will allow for more and/or larger cookies plus larger form content encoded
* in a URL. However, larger headers consume more memory and can make a server more vulnerable to denial of service
* attacks.</p>
*
* @param requestHeaderSize the maximum size in bytes of the request header
*/
public void setRequestHeaderSize(int requestHeaderSize)
{
_requestHeaderSize = requestHeaderSize;
}
/**
* <p>Larger headers will allow for more and/or larger cookies and longer HTTP headers (eg for redirection).
* However, larger headers will also consume more memory.</p>
*
* @param responseHeaderSize the maximum size in bytes of the response header
*/
public void setResponseHeaderSize(int responseHeaderSize)
{
_responseHeaderSize = responseHeaderSize;
}
/**
* @param headerCacheSize The size of the header field cache, in terms of unique characters branches
* in the lookup {@link Index.Mutable} and associated data structures.
*/
public void setHeaderCacheSize(int headerCacheSize)
{
_headerCacheSize = headerCacheSize;
}
public void setHeaderCacheCaseSensitive(boolean headerCacheCaseSensitive)
{
this._headerCacheCaseSensitive = headerCacheCaseSensitive;
}
/**
* <p>Sets the TCP/IP port used for CONFIDENTIAL and INTEGRAL redirections.</p>
*
* @param securePort the secure port to redirect to.
*/
public void setSecurePort(int securePort)
{
_securePort = securePort;
}
/**
* <p>Set the URI scheme used for CONFIDENTIAL and INTEGRAL redirections.</p>
*
* @param secureScheme A scheme string like "https"
*/
public void setSecureScheme(String secureScheme)
{
_secureScheme = secureScheme;
}
/**
* Sets the form encoded HTTP methods.
*
* @param methods the HTTP methods of requests that can be decoded as
* {@code x-www-form-urlencoded} content to be made available via the
* {@link Request#getParameter(String)} and associated APIs
*/
public void setFormEncodedMethods(String... methods)
{
_formEncodedMethods.clear();
for (String method : methods)
{
addFormEncodedMethod(method);
}
}
/**
* @return the set of HTTP methods of requests that can be decoded as
* {@code x-www-form-urlencoded} content to be made available via the
* {@link Request#getParameter(String)} and associated APIs
*/
public Set<String> getFormEncodedMethods()
{
return _formEncodedMethods.keySet();
}
/**
* Adds a form encoded HTTP Method
*
* @param method the HTTP method of requests that can be decoded as
* {@code x-www-form-urlencoded} content to be made available via the
* {@link Request#getParameter(String)} and associated APIs
*/
public void addFormEncodedMethod(String method)
{
_formEncodedMethods.put(method, Boolean.TRUE);
}
/**
* Tests whether the HTTP method supports {@code x-www-form-urlencoded} content
*
* @param method the HTTP method
* @return true if requests with this method can be
* decoded as {@code x-www-form-urlencoded} content to be made available via the
* {@link Request#getParameter(String)} and associated APIs
*/
public boolean isFormEncodedMethod(String method)
{
return _formEncodedMethods.get(method) != null;
}
/**
* @return The maximum error dispatches for a request to prevent looping on an error
*/
@ManagedAttribute("The maximum ERROR dispatches for a request for loop prevention (default 10)")
public int getMaxErrorDispatches()
{
return _maxErrorDispatches;
}
/**
* @param max The maximum error dispatches for a request to prevent looping on an error
*/
public void setMaxErrorDispatches(int max)
{
_maxErrorDispatches = max;
}
/**
* @return The minimum request data rate in bytes per second; or <=0 for no limit
*/
@ManagedAttribute("The minimum request content data rate in bytes per second")
public long getMinRequestDataRate()
{
return _minRequestDataRate;
}
/**
* @param bytesPerSecond The minimum request data rate in bytes per second; or <=0 for no limit
*/
public void setMinRequestDataRate(long bytesPerSecond)
{
_minRequestDataRate = bytesPerSecond;
}
/**
* @return The minimum response data rate in bytes per second; or <=0 for no limit
*/
@ManagedAttribute("The minimum response content data rate in bytes per second")
public long getMinResponseDataRate()
{
return _minResponseDataRate;
}
/**
* <p>Sets an minimum response content data rate.</p>
* <p>The value is enforced only approximately - not precisely - due to the fact that
* for efficiency reasons buffer writes may be comprised of both response headers and
* response content.</p>
*
* @param bytesPerSecond The minimum response data rate in bytes per second; or <=0 for no limit
*/
public void setMinResponseDataRate(long bytesPerSecond)
{
_minResponseDataRate = bytesPerSecond;
}
public HttpCompliance getHttpCompliance()
{
return _httpCompliance;
}
public void setHttpCompliance(HttpCompliance httpCompliance)
{
_httpCompliance = httpCompliance;
}
public UriCompliance getUriCompliance()
{
return _uriCompliance;
}
public void setUriCompliance(UriCompliance uriCompliance)
{
_uriCompliance = uriCompliance;
}
/**
* @return The CookieCompliance used for parsing request {@code Cookie} headers.
* @see #getResponseCookieCompliance()
*/
public CookieCompliance getRequestCookieCompliance()
{
return _requestCookieCompliance;
}
/**
* @param cookieCompliance The CookieCompliance to use for parsing request {@code Cookie} headers.
*/
public void setRequestCookieCompliance(CookieCompliance cookieCompliance)
{
_requestCookieCompliance = cookieCompliance == null ? CookieCompliance.RFC6265 : cookieCompliance;
}
/**
* @return The CookieCompliance used for generating response {@code Set-Cookie} headers
* @see #getRequestCookieCompliance()
*/
public CookieCompliance getResponseCookieCompliance()
{
return _responseCookieCompliance;
}
/**
* @param cookieCompliance The CookieCompliance to use for generating response {@code Set-Cookie} headers
*/
public void setResponseCookieCompliance(CookieCompliance cookieCompliance)
{
_responseCookieCompliance = cookieCompliance == null ? CookieCompliance.RFC6265 : cookieCompliance;
}
/**
* @param notifyRemoteAsyncErrors whether remote errors, when detected, are notified to async applications
*/
public void setNotifyRemoteAsyncErrors(boolean notifyRemoteAsyncErrors)
{
this._notifyRemoteAsyncErrors = notifyRemoteAsyncErrors;
}
/**
* @return whether remote errors, when detected, are notified to async applications
*/
@ManagedAttribute("Whether remote errors, when detected, are notified to async applications")
public boolean isNotifyRemoteAsyncErrors()
{
return _notifyRemoteAsyncErrors;
}
/**
* @param allowed True if relative redirection locations are allowed
*/
public void setRelativeRedirectAllowed(boolean allowed)
{
_relativeRedirectAllowed = allowed;
}
/**
* @return True if relative redirection locations are allowed
*/
@ManagedAttribute("Whether relative redirection locations are allowed")
public boolean isRelativeRedirectAllowed()
{
return _relativeRedirectAllowed;
}
@Override
public String dump()
{
return Dumpable.dump(this);
}
@Override
public void dump(Appendable out, String indent) throws IOException
{
Dumpable.dumpObjects(out, indent, this,
new DumpableCollection("customizers", _customizers),
new DumpableCollection("formEncodedMethods", _formEncodedMethods.keySet()),
"outputBufferSize=" + _outputBufferSize,
"outputAggregationSize=" + _outputAggregationSize,
"requestHeaderSize=" + _requestHeaderSize,
"responseHeaderSize=" + _responseHeaderSize,
"headerCacheSize=" + _headerCacheSize,
"secureScheme=" + _secureScheme,
"securePort=" + _securePort,
"idleTimeout=" + _idleTimeout,
"sendDateHeader=" + _sendDateHeader,
"sendServerVersion=" + _sendServerVersion,
"sendXPoweredBy=" + _sendXPoweredBy,
"delayDispatchUntilContent=" + _delayDispatchUntilContent,
"persistentConnectionsEnabled=" + _persistentConnectionsEnabled,
"maxErrorDispatches=" + _maxErrorDispatches,
"minRequestDataRate=" + _minRequestDataRate,
"minResponseDataRate=" + _minResponseDataRate,
"requestCookieCompliance=" + _requestCookieCompliance,
"responseCookieCompliance=" + _responseCookieCompliance,
"notifyRemoteAsyncErrors=" + _notifyRemoteAsyncErrors,
"relativeRedirectAllowed=" + _relativeRedirectAllowed
);
}
@Override
public String toString()
{
return String.format("%s@%x{%d/%d,%d/%d,%s://:%d,%s}",
this.getClass().getSimpleName(),
hashCode(),
_outputBufferSize,
_outputAggregationSize,
_requestHeaderSize,
_responseHeaderSize,
_secureScheme,
_securePort,
_customizers);
}
}