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The core jetty server artifact.
//
// ========================================================================
// Copyright (c) 1995 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.lang.invoke.MethodHandle;
import java.lang.invoke.MethodHandles;
import java.lang.invoke.MethodType;
import java.security.Principal;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Locale;
import java.util.TimeZone;
import java.util.concurrent.TimeUnit;
import java.util.function.BiPredicate;
import java.util.function.Supplier;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.stream.Collectors;
import org.eclipse.jetty.http.HttpCookie;
import org.eclipse.jetty.http.HttpFields;
import org.eclipse.jetty.http.QuotedCSV;
import org.eclipse.jetty.http.pathmap.PathMappings;
import org.eclipse.jetty.util.DateCache;
import org.eclipse.jetty.util.NanoTime;
import org.eclipse.jetty.util.StringUtil;
import org.eclipse.jetty.util.annotation.ManagedAttribute;
import org.eclipse.jetty.util.annotation.ManagedObject;
import org.eclipse.jetty.util.component.ContainerLifeCycle;
import org.eclipse.jetty.util.resource.Resource;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import static java.lang.invoke.MethodHandles.dropArguments;
import static java.lang.invoke.MethodHandles.foldArguments;
import static java.lang.invoke.MethodType.methodType;
/**
* A flexible RequestLog, which produces log strings in a customizable format.
* The Logger takes a format string where request characteristics can be added using "%" format codes which are
* replaced by the corresponding value in the log output.
* The terms server, client, local and remote are used to refer to the different addresses and ports
* which can be logged. Server and client refer to the logical addresses which can be modified in the request
* headers. Where local and remote refer to the physical addresses which may be a proxy between the
* end-user and the server.
*
*
* Format codes are specified with the syntax %MODIFIERS{PARAM}CODE as follows:
*
* - MODIFIERS
* - Optional list of comma separated HTTP status codes which may be preceded by a single "!" to indicate
* negation. If the status code is not in the list the literal string "-" will be logged instead of
* the resulting value from the percent code.
* - {PARAM}
* - Parameter string which may be optional depending on the percent code used.
* - CODE
* - A one or two character code specified by the table of format codes below.
*
*
*
* Format Codes
*
* Format String
* Description
*
*
* X
*
* The X character.
*
*
*
* %%
*
* The percent character.
*
*
*
* %{format}a
*
* The address or host name.
* Valid format values are: "server", "client", "local", "remote".
* The format parameter is optional and defaults to "server".
* Values "server" and "client" are the logical addresses which can be modified in the request headers,
* while "local" and "remote" are the physical addresses so may be the addresses of a proxy between
* the end-user and the server.
*
*
*
* %{format}p
*
* The port.
* Valid format values are: "server", "client", "local", "remote".
* The format parameter is optional and defaults to "server".
* Values "server" and "client" are the logical ports which can be modified in the request headers,
* while "local" and "remote" are the physical ports so may be the ports of a proxy between
* the end-user and the server.
*
*
*
* %{CLF}I
*
* The size of request in bytes, excluding HTTP headers.
* The parameter is optional.
* When the parameter value is "CLF" the Common Log Format is used, i.e. a {@code -} rather than a {@code 0}
* when no bytes are present.
*
*
*
* %{CLF}O
*
* The size of response in bytes, excluding HTTP headers.
* The parameter is optional.
* When the parameter value is "CLF" the Common Log Format is used, i.e. a {@code -} rather than a {@code 0}
* when no bytes are present.
*
*
*
* %{CLF}S
*
* The bytes transferred (received and sent). This is the combination of {@code %I} and {@code %O}.
* The parameter is optional.
* When the parameter value is "CLF" the Common Log Format is used, i.e. a {@code -} rather than a {@code 0}
* when no bytes are present.
*
*
*
* %{VARNAME}C
*
* The value of the request cookie VARNAME.
* The parameter is optional.
* Only version 0 cookies are fully supported.
* When the parameter is missing, all request cookies will be logged.
*
*
*
* %D
*
* The time taken to serve the request, in microseconds.
*
*
*
* %{VARNAME}e
*
* The value of the environment variable VARNAME.
*
*
*
* %f
*
* The file system path of the requested resource.
*
*
*
* %H
*
* The name and version of the request protocol, such as "HTTP/1.1".
*
*
*
* %{VARNAME}i
*
* The value of the VARNAME request header.
*
*
*
* %k
*
* The number of requests handled on a connection.
* The initial request on a connection yields a value 0, the first request after the initial on the same connection
* yields the value 1, the second request on the same connection yields the value 2, etc.
*
*
*
* %m
*
* The HTTP request method.
*
*
*
* %{VARNAME}o
*
* The value of the VARNAME response header.
*
*
*
* %q
*
* The query string, prepended with a ? if a query string exists, otherwise an empty string.
*
*
*
*
* %r
*
* First line of an HTTP/1.1 request (or equivalent information for HTTP/2 or later).
*
*
*
* %R
*
* The name of the Handler or Servlet generating the response (if any).
*
*
*
* %s
*
* The HTTP response status code.
*
*
*
* %{format|timeZone|locale}t
*
* The time at which the request was received.
* The parameter is optional and may have the following values: {format}, {format|timeZone} or {format|timeZone|locale}.
*
* - format
* - Default is e.g. [18/Sep/2011:19:18:28 -0400] where the last number indicates the timezone offset from GMT.
* Must be in a format supported by the {@code java.time} package.
* - timeZone
* - Default is GMT.
* Must be in a format supported by the {@code java.time} package.
* - locale
* - Default is the JVM default locale.
* Must be in a format supported by {@code java.util.Locale.forLanguageTag()}.
*
*
*
*
* %{UNIT}T
*
* The time taken to serve the request.
* The parameter UNIT is optional and defaults to "s".
* The parameter UNIT indicates the unit of time: "s" for seconds, "ms" for milliseconds, "us" for microseconds.
* %{us}T is identical to {@code %D}.
*
*
*
* %{d}u
*
* The remote user if the request was authenticated with servlet authentication.
* May be an invalid value if response status code ({@code %s}) is 401 (unauthorized).
* The parameter is optional.
* When the parameter value is "d", deferred authentication will also be checked.
*
*
*
* %U
*
* The URL path requested, not including any query string.
*
*
*
* %X
*
* The connection status when response is completed:
*
* - X
* - The connection is aborted before the response completed.
* - +
* - The connection may be kept alive after the response is sent.
* - -
* - The connection will be closed after the response is sent.
*
*
*
*
* %{VARNAME}ti
*
* The value of the VARNAME request trailer.
*
*
*
* %{VARNAME}to
*
* The value of the VARNAME response trailer.
*
*
*
*
*/
@ManagedObject("Custom format request log")
public class CustomRequestLog extends ContainerLifeCycle implements RequestLog
{
/**
* Record holding extra detail for logging
* @param handlerName The name of the entity that handled the request
* @param realPath The real path on the filesystem represented by the request
*/
public record LogDetail(String handlerName, String realPath)
{
}
public static final String DEFAULT_DATE_FORMAT = "dd/MMM/yyyy:HH:mm:ss ZZZ";
public static final String NCSA_FORMAT = "%{client}a - %u %t \"%r\" %s %O";
public static final String EXTENDED_NCSA_FORMAT = NCSA_FORMAT + " \"%{Referer}i\" \"%{User-Agent}i\"";
public static final String LOG_DETAIL = CustomRequestLog.class.getName() + ".logDetail";
private static final Logger LOG = LoggerFactory.getLogger(CustomRequestLog.class);
private static final ThreadLocal _buffers = ThreadLocal.withInitial(() -> new StringBuilder(256));
private final RequestLog.Writer _requestLogWriter;
private final MethodHandle _logHandle;
private final String _formatString;
private transient PathMappings _ignorePathMap;
private String[] _ignorePaths;
private BiPredicate _filter;
public CustomRequestLog()
{
this(new Slf4jRequestLogWriter(), EXTENDED_NCSA_FORMAT);
}
public CustomRequestLog(String file)
{
this(file, EXTENDED_NCSA_FORMAT);
}
public CustomRequestLog(String file, String format)
{
this(new RequestLogWriter(file), format);
}
public CustomRequestLog(RequestLog.Writer writer, String formatString)
{
_formatString = formatString;
_requestLogWriter = writer;
installBean(_requestLogWriter);
try
{
_logHandle = getLogHandle(formatString);
}
catch (NoSuchMethodException | IllegalAccessException e)
{
throw new IllegalStateException(e);
}
}
/**
* This allows you to set a custom filter to decide whether to log a request or omit it from the request log.
* This filter is evaluated after path filtering is applied from {@link #setIgnorePaths(String[])}.
* @param filter - a BiPredicate which returns true if this request should be logged.
*/
public void setFilter(BiPredicate filter)
{
_filter = filter;
}
@ManagedAttribute("The RequestLogWriter")
public RequestLog.Writer getWriter()
{
return _requestLogWriter;
}
@Override
public void log(Request request, Response response)
{
try
{
if (_ignorePathMap != null && _ignorePathMap.getMatched(request.getHttpURI().getCanonicalPath()) != null)
return;
if (_filter != null && !_filter.test(request, response))
return;
StringBuilder sb = _buffers.get();
sb.setLength(0);
_logHandle.invoke(sb, request, response);
String log = sb.toString();
_requestLogWriter.write(log);
}
catch (Throwable e)
{
LOG.warn("Unable to log request", e);
}
}
/**
* Set request paths that will not be logged.
*
* @param ignorePaths array of request paths
*/
public void setIgnorePaths(String[] ignorePaths)
{
_ignorePaths = ignorePaths;
}
/**
* Retrieve the request paths that will not be logged.
*
* @return array of request paths
*/
public String[] getIgnorePaths()
{
return _ignorePaths;
}
/**
* Retrieve the format string.
*
* @return the format string
*/
@ManagedAttribute("format string")
public String getFormatString()
{
return _formatString;
}
/**
* Set up request logging and open log file.
*
* @see org.eclipse.jetty.util.component.AbstractLifeCycle#doStart()
*/
@Override
protected void doStart() throws Exception
{
if (_ignorePaths != null && _ignorePaths.length > 0)
{
_ignorePathMap = new PathMappings<>();
for (String ignorePath : _ignorePaths)
{
_ignorePathMap.put(ignorePath, ignorePath);
}
}
else
_ignorePathMap = null;
super.doStart();
}
private static void append(StringBuilder buf, String s)
{
if (s == null || s.length() == 0)
buf.append('-');
else
buf.append(s);
}
private static void append(String s, StringBuilder buf)
{
append(buf, s);
}
private MethodHandle getLogHandle(String formatString) throws NoSuchMethodException, IllegalAccessException
{
MethodHandles.Lookup lookup = MethodHandles.lookup();
MethodHandle append = lookup.findStatic(CustomRequestLog.class, "append", methodType(void.class, String.class, StringBuilder.class));
MethodHandle logHandle = lookup.findStatic(CustomRequestLog.class, "logNothing", methodType(void.class, StringBuilder.class, Request.class, Response.class));
List tokens = getTokens(formatString);
Collections.reverse(tokens);
for (Token t : tokens)
{
if (t.isLiteralString())
logHandle = updateLogHandle(logHandle, append, t.literal);
else if (t.isPercentCode())
logHandle = updateLogHandle(logHandle, append, lookup, t.code, t.arg, t.modifiers, t.negated);
else
throw new IllegalStateException("bad token " + t);
}
return logHandle;
}
private static List getTokens(String formatString)
{
/*
Extracts literal strings and percent codes out of the format string.
We will either match a percent code of the format %MODIFIERS{PARAM}CODE, or a literal string
until the next percent code or the end of the formatString is reached.
where
MODIFIERS is an optional comma separated list of numbers.
{PARAM} is an optional string parameter to the percent code.
CODE is a 1 to 2 character string corresponding to a format code.
*/
final Pattern PATTERN = Pattern.compile("^(?:%(?!?[0-9,]+)?(?:\\{(?[^}]+)})?(?(?:(?:ti)|(?:to)|[a-zA-Z%]))|(?[^%]+))(?.*)", Pattern.DOTALL | Pattern.MULTILINE);
List tokens = new ArrayList<>();
String remaining = formatString;
while (remaining.length() > 0)
{
Matcher m = PATTERN.matcher(remaining);
if (m.matches())
{
if (m.group("CODE") != null)
{
String code = m.group("CODE");
String arg = m.group("ARG");
String modifierString = m.group("MOD");
List modifiers = null;
boolean negated = false;
if (modifierString != null)
{
if (modifierString.startsWith("!"))
{
modifierString = modifierString.substring(1);
negated = true;
}
modifiers = new QuotedCSV(modifierString)
.getValues()
.stream()
.map(Integer::parseInt)
.collect(Collectors.toList());
}
tokens.add(new Token(code, arg, modifiers, negated));
}
else if (m.group("LITERAL") != null)
{
String literal = m.group("LITERAL");
tokens.add(new Token(literal));
}
else
{
throw new IllegalStateException("formatString parsing error: " + formatString);
}
remaining = m.group("REMAINING");
}
else
{
throw new IllegalArgumentException("Invalid format string: " + formatString);
}
}
return tokens;
}
private static class Token
{
public final String code;
public final String arg;
public final List modifiers;
public final boolean negated;
public final String literal;
public Token(String code, String arg, List modifiers, boolean negated)
{
this.code = code;
this.arg = arg;
this.modifiers = modifiers;
this.negated = negated;
this.literal = null;
}
public Token(String literal)
{
this.code = null;
this.arg = null;
this.modifiers = null;
this.negated = false;
this.literal = literal;
}
public boolean isLiteralString()
{
return (literal != null);
}
public boolean isPercentCode()
{
return (code != null);
}
}
@SuppressWarnings("unused")
private static boolean modify(List modifiers, Boolean negated, StringBuilder b, Request request, Response response)
{
if (negated)
return !modifiers.contains(response.getStatus());
else
return modifiers.contains(response.getStatus());
}
private MethodHandle updateLogHandle(MethodHandle logHandle, MethodHandle append, String literal)
{
return foldArguments(logHandle, dropArguments(dropArguments(append.bindTo(literal), 1, Request.class), 2, Response.class));
}
private MethodHandle updateLogHandle(MethodHandle logHandle, MethodHandle append, MethodHandles.Lookup lookup, String code, String arg, List modifiers, boolean negated) throws NoSuchMethodException, IllegalAccessException
{
MethodType logType = methodType(void.class, StringBuilder.class, Request.class, Response.class);
MethodType logTypeArg = methodType(void.class, String.class, StringBuilder.class, Request.class, Response.class);
//TODO should we throw IllegalArgumentExceptions when given arguments for codes which do not take them
MethodHandle specificHandle = switch (code)
{
case "%" -> dropArguments(dropArguments(append.bindTo("%"), 1, Request.class), 2, Response.class);
case "a" ->
{
if (StringUtil.isEmpty(arg))
arg = "server";
String method = switch (arg)
{
case "server" -> "logServerHost";
case "client" -> "logClientHost";
case "local" -> "logLocalHost";
case "remote" -> "logRemoteHost";
default -> throw new IllegalArgumentException("Invalid arg for %a");
};
yield lookup.findStatic(CustomRequestLog.class, method, logType);
}
case "p" ->
{
if (StringUtil.isEmpty(arg))
arg = "server";
String method = switch (arg)
{
case "server" -> "logServerPort";
case "client" -> "logClientPort";
case "local" -> "logLocalPort";
case "remote" -> "logRemotePort";
default -> throw new IllegalArgumentException("Invalid arg for %p");
};
yield lookup.findStatic(CustomRequestLog.class, method, logType);
}
case "I" ->
{
String method;
if (StringUtil.isEmpty(arg))
method = "logBytesReceived";
else if (arg.equalsIgnoreCase("clf"))
method = "logBytesReceivedCLF";
else
throw new IllegalArgumentException("Invalid argument for %I");
yield lookup.findStatic(CustomRequestLog.class, method, logType);
}
case "O" ->
{
String method;
if (StringUtil.isEmpty(arg))
method = "logBytesSent";
else if (arg.equalsIgnoreCase("clf"))
method = "logBytesSentCLF";
else
throw new IllegalArgumentException("Invalid argument for %O");
yield lookup.findStatic(CustomRequestLog.class, method, logType);
}
case "S" ->
{
String method;
if (StringUtil.isEmpty(arg))
method = "logBytesTransferred";
else if (arg.equalsIgnoreCase("clf"))
method = "logBytesTransferredCLF";
else
throw new IllegalArgumentException("Invalid argument for %S");
yield lookup.findStatic(CustomRequestLog.class, method, logType);
}
case "C" ->
{
if (StringUtil.isEmpty(arg))
{
yield lookup.findStatic(CustomRequestLog.class, "logRequestCookies", logType);
}
else
{
yield lookup.findStatic(CustomRequestLog.class, "logRequestCookie", logTypeArg).bindTo(arg);
}
}
case "D" -> lookup.findStatic(CustomRequestLog.class, "logLatencyMicroseconds", logType);
case "e" ->
{
if (StringUtil.isEmpty(arg))
throw new IllegalArgumentException("No arg for %e");
yield lookup.findStatic(CustomRequestLog.class, "logEnvironmentVar", logTypeArg).bindTo(arg);
}
case "f" -> lookup.findStatic(CustomRequestLog.class, "logFilename", logType);
case "H" -> lookup.findStatic(CustomRequestLog.class, "logRequestProtocol", logType);
case "i" ->
{
if (StringUtil.isEmpty(arg))
throw new IllegalArgumentException("No arg for %i");
yield lookup.findStatic(CustomRequestLog.class, "logRequestHeader", logTypeArg).bindTo(arg);
}
case "k" -> lookup.findStatic(CustomRequestLog.class, "logKeepAliveRequests", logType);
case "m" -> lookup.findStatic(CustomRequestLog.class, "logRequestMethod", logType);
case "o" ->
{
if (StringUtil.isEmpty(arg))
throw new IllegalArgumentException("No arg for %o");
yield lookup.findStatic(CustomRequestLog.class, "logResponseHeader", logTypeArg).bindTo(arg);
}
case "q" -> lookup.findStatic(CustomRequestLog.class, "logQueryString", logType);
case "r" -> lookup.findStatic(CustomRequestLog.class, "logRequestFirstLine", logType);
case "R" -> lookup.findStatic(CustomRequestLog.class, "logRequestHandler", logType);
case "s" -> lookup.findStatic(CustomRequestLog.class, "logResponseStatus", logType);
case "t" ->
{
String format = DEFAULT_DATE_FORMAT;
TimeZone timeZone = TimeZone.getTimeZone("GMT");
Locale locale = Locale.getDefault();
if (arg != null && !arg.isEmpty())
{
String[] args = arg.split("\\|");
switch (args.length)
{
case 1 -> format = args[0];
case 2 ->
{
format = args[0];
timeZone = TimeZone.getTimeZone(args[1]);
}
case 3 ->
{
format = args[0];
timeZone = TimeZone.getTimeZone(args[1]);
locale = Locale.forLanguageTag(args[2]);
}
default -> throw new IllegalArgumentException("Too many \"|\" characters in %t");
}
}
DateCache logDateCache = new DateCache(format, locale, timeZone);
MethodType logTypeDateCache = methodType(void.class, DateCache.class, StringBuilder.class, Request.class, Response.class);
yield lookup.findStatic(CustomRequestLog.class, "logRequestTime", logTypeDateCache).bindTo(logDateCache);
}
case "T" ->
{
if (arg == null)
arg = "s";
String method = switch (arg)
{
case "s" -> "logLatencySeconds";
case "us" -> "logLatencyMicroseconds";
case "ms" -> "logLatencyMilliseconds";
default -> throw new IllegalArgumentException("Invalid arg for %T");
};
yield lookup.findStatic(CustomRequestLog.class, method, logType);
}
case "u" ->
{
String method;
if (StringUtil.isEmpty(arg))
method = "logRequestAuthentication";
else if ("d".equals(arg))
method = "logRequestAuthenticationWithDeferred";
else
throw new IllegalArgumentException("Invalid arg for %u: " + arg);
yield lookup.findStatic(CustomRequestLog.class, method, logType);
}
case "U" -> lookup.findStatic(CustomRequestLog.class, "logUrlRequestPath", logType);
case "X" -> lookup.findStatic(CustomRequestLog.class, "logConnectionStatus", logType);
case "ti" ->
{
if (StringUtil.isEmpty(arg))
throw new IllegalArgumentException("No arg for %ti");
yield lookup.findStatic(CustomRequestLog.class, "logRequestTrailer", logTypeArg).bindTo(arg);
}
case "to" ->
{
if (StringUtil.isEmpty(arg))
throw new IllegalArgumentException("No arg for %to");
yield lookup.findStatic(CustomRequestLog.class, "logResponseTrailer", logTypeArg).bindTo(arg);
}
default -> throw new IllegalArgumentException("Unsupported code %" + code);
};
if (modifiers != null && !modifiers.isEmpty())
{
MethodHandle dash = updateLogHandle(logHandle, append, "-");
MethodHandle log = foldArguments(logHandle, specificHandle);
MethodHandle modifierTest = lookup.findStatic(CustomRequestLog.class, "modify",
methodType(Boolean.TYPE, List.class, Boolean.class, StringBuilder.class, Request.class, Response.class));
modifierTest = modifierTest.bindTo(modifiers).bindTo(negated);
return MethodHandles.guardWithTest(modifierTest, log, dash);
}
return foldArguments(logHandle, specificHandle);
}
//-----------------------------------------------------------------------------------//
@SuppressWarnings("unused")
private static void logNothing(StringBuilder b, Request request, Response response)
{
}
@SuppressWarnings("unused")
private static void logServerHost(StringBuilder b, Request request, Response response)
{
append(b, Request.getServerName(request));
}
@SuppressWarnings("unused")
private static void logClientHost(StringBuilder b, Request request, Response response)
{
append(b, Request.getRemoteAddr(request));
}
@SuppressWarnings("unused")
private static void logLocalHost(StringBuilder b, Request request, Response response)
{
// Unwrap to bypass any customizers
append(b, Request.getLocalAddr(Request.unWrap(request)));
}
@SuppressWarnings("unused")
private static void logRemoteHost(StringBuilder b, Request request, Response response)
{
// Unwrap to bypass any customizers
append(b, Request.getRemoteAddr(Request.unWrap(request)));
}
@SuppressWarnings("unused")
private static void logServerPort(StringBuilder b, Request request, Response response)
{
b.append(Request.getServerPort(request));
}
@SuppressWarnings("unused")
private static void logClientPort(StringBuilder b, Request request, Response response)
{
b.append(Request.getRemotePort(request));
}
@SuppressWarnings("unused")
private static void logLocalPort(StringBuilder b, Request request, Response response)
{
// Unwrap to bypass any customizers
b.append(Request.getLocalPort(Request.unWrap(request)));
}
@SuppressWarnings("unused")
private static void logRemotePort(StringBuilder b, Request request, Response response)
{
// Unwrap to bypass any customizers
b.append(Request.getRemotePort(Request.unWrap(request)));
}
@SuppressWarnings("unused")
private static void logResponseSize(StringBuilder b, Request request, Response response)
{
b.append(Response.getContentBytesWritten(response));
}
@SuppressWarnings("unused")
private static void logResponseSizeCLF(StringBuilder b, Request request, Response response)
{
long written = Response.getContentBytesWritten(response);
if (written == 0)
b.append('-');
else
b.append(written);
}
@SuppressWarnings("unused")
private static void logBytesSent(StringBuilder b, Request request, Response response)
{
b.append(Response.getContentBytesWritten(response));
}
@SuppressWarnings("unused")
private static void logBytesSentCLF(StringBuilder b, Request request, Response response)
{
long sent = Response.getContentBytesWritten(response);
if (sent == 0)
b.append('-');
else
b.append(sent);
}
@SuppressWarnings("unused")
private static void logBytesReceived(StringBuilder b, Request request, Response response)
{
b.append(Request.getContentBytesRead(request));
}
@SuppressWarnings("unused")
private static void logBytesReceivedCLF(StringBuilder b, Request request, Response response)
{
long received = Request.getContentBytesRead(request);
if (received == 0)
b.append('-');
else
b.append(received);
}
@SuppressWarnings("unused")
private static void logBytesTransferred(StringBuilder b, Request request, Response response)
{
b.append(Request.getContentBytesRead(request) + Response.getContentBytesWritten(response));
}
@SuppressWarnings("unused")
private static void logBytesTransferredCLF(StringBuilder b, Request request, Response response)
{
long transferred = Request.getContentBytesRead(request) + Response.getContentBytesWritten(response);
if (transferred == 0)
b.append('-');
else
b.append(transferred);
}
@SuppressWarnings("unused")
private static void logRequestCookie(String arg, StringBuilder b, Request request, Response response)
{
List cookies = Request.getCookies(request);
if (cookies != null)
{
for (HttpCookie c : cookies)
{
if (arg.equals(c.getName()))
{
b.append(c.getValue());
return;
}
}
}
b.append('-');
}
@SuppressWarnings("unused")
private static void logRequestCookies(StringBuilder b, Request request, Response response)
{
List cookies = Request.getCookies(request);
if (cookies == null || cookies.size() == 0)
{
b.append('-');
}
else
{
for (int i = 0; i < cookies.size(); i++)
{
if (i != 0)
b.append(';');
b.append(cookies.get(i).getName());
b.append('=');
b.append(cookies.get(i).getValue());
}
}
}
@SuppressWarnings("unused")
private static void logEnvironmentVar(String arg, StringBuilder b, Request request, Response response)
{
append(b, System.getenv(arg));
}
@SuppressWarnings("unused")
private static void logFilename(StringBuilder b, Request request, Response response)
{
LogDetail logDetail = (LogDetail)request.getAttribute(LOG_DETAIL);
if (logDetail == null || logDetail.realPath == null)
{
Context context = request.getContext();
Resource baseResource = context.getBaseResource();
if (baseResource != null)
{
String fileName = baseResource.resolve(Request.getPathInContext(request)).getName();
append(b, fileName);
}
else
{
b.append("-");
}
}
else
{
b.append(logDetail.realPath);
}
}
@SuppressWarnings("unused")
private static void logRequestProtocol(StringBuilder b, Request request, Response response)
{
append(b, request.getConnectionMetaData().getProtocol());
}
@SuppressWarnings("unused")
private static void logRequestHeader(String arg, StringBuilder b, Request request, Response response)
{
append(b, request.getHeaders().get(arg));
}
@SuppressWarnings("unused")
private static void logKeepAliveRequests(StringBuilder b, Request request, Response response)
{
long requests = request.getConnectionMetaData().getConnection().getMessagesIn();
if (requests >= 0)
b.append(requests);
else
b.append('-');
}
@SuppressWarnings("unused")
private static void logRequestMethod(StringBuilder b, Request request, Response response)
{
append(b, request.getMethod());
}
@SuppressWarnings("unused")
private static void logResponseHeader(String arg, StringBuilder b, Request request, Response response)
{
append(b, response.getHeaders().get(arg));
}
@SuppressWarnings("unused")
private static void logQueryString(StringBuilder b, Request request, Response response)
{
append(b, "?" + request.getHttpURI().getQuery());
}
@SuppressWarnings("unused")
private static void logRequestFirstLine(StringBuilder b, Request request, Response response)
{
append(b, request.getMethod());
b.append(" ");
append(b, request.getHttpURI().getPathQuery());
b.append(" ");
append(b, request.getConnectionMetaData().getProtocol());
}
@SuppressWarnings("unused")
private static void logRequestHandler(StringBuilder b, Request request, Response response)
{
LogDetail logDetail = (LogDetail)request.getAttribute(LOG_DETAIL);
append(b, logDetail == null ? null : logDetail.handlerName);
}
@SuppressWarnings("unused")
private static void logResponseStatus(StringBuilder b, Request request, Response response)
{
b.append(response.getStatus());
}
@SuppressWarnings("unused")
private static void logRequestTime(DateCache dateCache, StringBuilder b, Request request, Response response)
{
b.append('[');
append(b, dateCache.format(Request.getTimeStamp(request)));
b.append(']');
}
@SuppressWarnings("unused")
private static void logLatencyMicroseconds(StringBuilder b, Request request, Response response)
{
logLatency(b, request, TimeUnit.MICROSECONDS);
}
@SuppressWarnings("unused")
private static void logLatencyMilliseconds(StringBuilder b, Request request, Response response)
{
logLatency(b, request, TimeUnit.MILLISECONDS);
}
@SuppressWarnings("unused")
private static void logLatencySeconds(StringBuilder b, Request request, Response response)
{
logLatency(b, request, TimeUnit.SECONDS);
}
private static void logLatency(StringBuilder b, Request request, TimeUnit unit)
{
b.append(unit.convert(NanoTime.since(request.getBeginNanoTime()), TimeUnit.NANOSECONDS));
}
@SuppressWarnings("unused")
private static void logRequestAuthentication(StringBuilder b, Request request, Response response)
{
Request.AuthenticationState authenticationState = Request.getAuthenticationState(request);
Principal userPrincipal = authenticationState == null ? null : authenticationState.getUserPrincipal();
append(b, userPrincipal == null ? null : userPrincipal.getName());
}
@SuppressWarnings("unused")
private static void logRequestAuthenticationWithDeferred(StringBuilder b, Request request, Response response)
{
// TODO: deferred to be implemented.
logRequestAuthentication(b, request, response);
}
@SuppressWarnings("unused")
private static void logUrlRequestPath(StringBuilder b, Request request, Response response)
{
append(b, request.getHttpURI().getPath());
}
@SuppressWarnings("unused")
private static void logConnectionStatus(StringBuilder b, Request request, Response response)
{
b.append(response.isCompletedSuccessfully()
? (request.getConnectionMetaData().isPersistent() ? '+' : '-')
: 'X');
}
@SuppressWarnings("unused")
private static void logRequestTrailer(String arg, StringBuilder b, Request request, Response response)
{
HttpFields trailers = request.getTrailers();
if (trailers != null)
append(b, trailers.get(arg));
else
b.append('-');
}
@SuppressWarnings("unused")
private static void logResponseTrailer(String arg, StringBuilder b, Request request, Response response)
{
Supplier supplier = response.getTrailersSupplier();
HttpFields trailers = supplier == null ? null : supplier.get();
if (trailers != null)
append(b, trailers.get(arg));
else
b.append('-');
}
}