Jetty example source code file (HttpFields.java)
The Jetty HttpFields.java source code// ========================================================================
// Copyright 2004-2005 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// 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.mortbay.jetty;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Collections;
import java.util.Date;
import java.util.Enumeration;
import java.util.GregorianCalendar;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.NoSuchElementException;
import java.util.StringTokenizer;
import java.util.TimeZone;
import javax.servlet.http.Cookie;
import org.mortbay.io.Buffer;
import org.mortbay.io.BufferCache;
import org.mortbay.io.BufferDateCache;
import org.mortbay.io.BufferUtil;
import org.mortbay.io.ByteArrayBuffer;
import org.mortbay.io.View;
import org.mortbay.io.BufferCache.CachedBuffer;
import org.mortbay.util.LazyList;
import org.mortbay.util.QuotedStringTokenizer;
import org.mortbay.util.StringMap;
import org.mortbay.util.StringUtil;
import org.mortbay.util.URIUtil;
/* ------------------------------------------------------------ */
/**
* HTTP Fields. A collection of HTTP header and or Trailer fields. This class is not synchronized
* and needs to be protected from concurrent access.
*
* This class is not synchronized as it is expected that modifications will only be performed by a
* single thread.
*
* @author Greg Wilkins (gregw)
*/
public class HttpFields
{
/* ------------------------------------------------------------ */
public final static String __separators = ", \t";
/* ------------------------------------------------------------ */
private static String[] DAYS =
{ "Sat", "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
private static String[] MONTHS =
{ "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec", "Jan"};
/* ------------------------------------------------------------ */
/**
* Format HTTP date "EEE, dd MMM yyyy HH:mm:ss 'GMT'" or "EEE, dd-MMM-yy HH:mm:ss 'GMT'"for
* cookies
*/
public static String formatDate(long date, boolean cookie)
{
StringBuffer buf = new StringBuffer(32);
GregorianCalendar gc = new GregorianCalendar(__GMT);
gc.setTimeInMillis(date);
formatDate(buf, gc, cookie);
return buf.toString();
}
/* ------------------------------------------------------------ */
/**
* Format HTTP date "EEE, dd MMM yyyy HH:mm:ss 'GMT'" or "EEE, dd-MMM-yy HH:mm:ss 'GMT'"for
* cookies
*/
public static String formatDate(Calendar calendar, boolean cookie)
{
StringBuffer buf = new StringBuffer(32);
formatDate(buf, calendar, cookie);
return buf.toString();
}
/* ------------------------------------------------------------ */
/**
* Format HTTP date "EEE, dd MMM yyyy HH:mm:ss 'GMT'" or "EEE, dd-MMM-yy HH:mm:ss 'GMT'"for
* cookies
*/
public static String formatDate(StringBuffer buf, long date, boolean cookie)
{
GregorianCalendar gc = new GregorianCalendar(__GMT);
gc.setTimeInMillis(date);
formatDate(buf, gc, cookie);
return buf.toString();
}
/* ------------------------------------------------------------ */
/**
* Format HTTP date "EEE, dd MMM yyyy HH:mm:ss 'GMT'" or "EEE, dd-MMM-yy HH:mm:ss 'GMT'"for
* cookies
*/
public static void formatDate(StringBuffer buf, Calendar calendar, boolean cookie)
{
// "EEE, dd MMM yyyy HH:mm:ss 'GMT'"
// "EEE, dd-MMM-yy HH:mm:ss 'GMT'", cookie
int day_of_week = calendar.get(Calendar.DAY_OF_WEEK);
int day_of_month = calendar.get(Calendar.DAY_OF_MONTH);
int month = calendar.get(Calendar.MONTH);
int year = calendar.get(Calendar.YEAR);
int century = year / 100;
year = year % 100;
int epoch = (int) ((calendar.getTimeInMillis() / 1000) % (60 * 60 * 24));
int seconds = epoch % 60;
epoch = epoch / 60;
int minutes = epoch % 60;
int hours = epoch / 60;
buf.append(DAYS[day_of_week]);
buf.append(',');
buf.append(' ');
StringUtil.append2digits(buf, day_of_month);
if (cookie)
{
buf.append('-');
buf.append(MONTHS[month]);
buf.append('-');
StringUtil.append2digits(buf, year);
}
else
{
buf.append(' ');
buf.append(MONTHS[month]);
buf.append(' ');
StringUtil.append2digits(buf, century);
StringUtil.append2digits(buf, year);
}
buf.append(' ');
StringUtil.append2digits(buf, hours);
buf.append(':');
StringUtil.append2digits(buf, minutes);
buf.append(':');
StringUtil.append2digits(buf, seconds);
buf.append(" GMT");
}
/* -------------------------------------------------------------- */
private static TimeZone __GMT = TimeZone.getTimeZone("GMT");
public final static BufferDateCache __dateCache = new BufferDateCache("EEE, dd MMM yyyy HH:mm:ss 'GMT'", Locale.US);
/* ------------------------------------------------------------ */
private final static String __dateReceiveFmt[] =
{ "EEE, dd MMM yyyy HH:mm:ss zzz",
"EEE, dd-MMM-yy HH:mm:ss",
"EEE MMM dd HH:mm:ss yyyy",
"EEE, dd MMM yyyy HH:mm:ss", "EEE dd MMM yyyy HH:mm:ss zzz",
"EEE dd MMM yyyy HH:mm:ss", "EEE MMM dd yyyy HH:mm:ss zzz", "EEE MMM dd yyyy HH:mm:ss",
"EEE MMM-dd-yyyy HH:mm:ss zzz", "EEE MMM-dd-yyyy HH:mm:ss", "dd MMM yyyy HH:mm:ss zzz",
"dd MMM yyyy HH:mm:ss", "dd-MMM-yy HH:mm:ss zzz", "dd-MMM-yy HH:mm:ss", "MMM dd HH:mm:ss yyyy zzz",
"MMM dd HH:mm:ss yyyy", "EEE MMM dd HH:mm:ss yyyy zzz",
"EEE, MMM dd HH:mm:ss yyyy zzz", "EEE, MMM dd HH:mm:ss yyyy", "EEE, dd-MMM-yy HH:mm:ss zzz",
"EEE dd-MMM-yy HH:mm:ss zzz", "EEE dd-MMM-yy HH:mm:ss",
};
private static int __dateReceiveInit=3;
private static SimpleDateFormat __dateReceive[];
static
{
__GMT.setID("GMT");
__dateCache.setTimeZone(__GMT);
__dateReceive = new SimpleDateFormat[__dateReceiveFmt.length];
// Initialize only the standard formats here.
for (int i = 0; i < __dateReceiveInit; i++)
{
__dateReceive[i] = new SimpleDateFormat(__dateReceiveFmt[i], Locale.US);
__dateReceive[i].setTimeZone(__GMT);
}
}
public final static String __01Jan1970 = formatDate(0, false);
public final static Buffer __01Jan1970_BUFFER = new ByteArrayBuffer(__01Jan1970);
/* -------------------------------------------------------------- */
protected ArrayList _fields = new ArrayList(20);
protected int _revision;
protected HashMap _bufferMap = new HashMap(32);
protected SimpleDateFormat _dateReceive[] = new SimpleDateFormat[__dateReceive.length];
private StringBuffer _dateBuffer;
private Calendar _calendar;
/* ------------------------------------------------------------ */
/**
* Constructor.
*/
public HttpFields()
{
}
/* -------------------------------------------------------------- */
/**
* Get enumeration of header _names. Returns an enumeration of strings representing the header
* _names for this request.
*/
public Enumeration getFieldNames()
{
final int revision=_revision;
return new Enumeration()
{
int i = 0;
Field field = null;
public boolean hasMoreElements()
{
if (field != null) return true;
while (i < _fields.size())
{
Field f = (Field) _fields.get(i++);
if (f != null && f._prev == null && f._revision == revision)
{
field = f;
return true;
}
}
return false;
}
public Object nextElement() throws NoSuchElementException
{
if (field != null || hasMoreElements())
{
String n = BufferUtil.to8859_1_String(field._name);
field = null;
return n;
}
throw new NoSuchElementException();
}
};
}
/* -------------------------------------------------------------- */
/**
* Get enumeration of Fields Returns an enumeration of Fields for this request.
*/
public Iterator getFields()
{
final int revision=_revision;
return new Iterator()
{
int i = 0;
Field field = null;
public boolean hasNext()
{
if (field != null) return true;
while (i < _fields.size())
{
Field f = (Field) _fields.get(i++);
if (f != null && f._revision == revision)
{
field = f;
return true;
}
}
return false;
}
public Object next()
{
if (field != null || hasNext())
{
final Field f = field;
field = null;
return f;
}
throw new NoSuchElementException();
}
public void remove()
{
throw new UnsupportedOperationException();
}
};
}
/* ------------------------------------------------------------ */
private Field getField(String name)
{
return (Field) _bufferMap.get(HttpHeaders.CACHE.lookup(name));
}
/* ------------------------------------------------------------ */
private Field getField(Buffer name)
{
return (Field) _bufferMap.get(name);
}
/* ------------------------------------------------------------ */
public boolean containsKey(Buffer name)
{
Field f = getField(name);
return (f != null && f._revision == _revision);
}
/* ------------------------------------------------------------ */
public boolean containsKey(String name)
{
Field f = getField(name);
return (f != null && f._revision == _revision);
}
/* -------------------------------------------------------------- */
/**
* @return the value of a field, or null if not found. For multiple fields of the same name,
* only the first is returned.
* @param name the case-insensitive field name
*/
public String getStringField(String name)
{
// TODO - really reuse strings from previous requests!
Field field = getField(name);
if (field != null && field._revision == _revision) return field.getValue();
return null;
}
/* -------------------------------------------------------------- */
/**
* @return the value of a field, or null if not found. For multiple fields of the same name,
* only the first is returned.
* @param name the case-insensitive field name
*/
public String getStringField(Buffer name)
{
// TODO - really reuse strings from previous requests!
Field field = getField(name);
if (field != null && field._revision == _revision)
return BufferUtil.to8859_1_String(field._value);
return null;
}
/* -------------------------------------------------------------- */
/**
* @return the value of a field, or null if not found. For multiple fields of the same name,
* only the first is returned.
* @param name the case-insensitive field name
*/
public Buffer get(Buffer name)
{
Field field = getField(name);
if (field != null && field._revision == _revision)
return field._value;
return null;
}
/* -------------------------------------------------------------- */
/**
* Get multi headers
*
* @return Enumeration of the values, or null if no such header.
* @param name the case-insensitive field name
*/
public Enumeration getValues(String name)
{
final Field field = getField(name);
if (field == null)
return null;
final int revision=_revision;
return new Enumeration()
{
Field f = field;
public boolean hasMoreElements()
{
while (f != null && f._revision != revision)
f = f._next;
return f != null;
}
public Object nextElement() throws NoSuchElementException
{
if (f == null) throw new NoSuchElementException();
Field n = f;
do
f = f._next;
while (f != null && f._revision != revision);
return n.getValue();
}
};
}
/* -------------------------------------------------------------- */
/**
* Get multi headers
*
* @return Enumeration of the value Strings, or null if no such header.
* @param name the case-insensitive field name
*/
public Enumeration getValues(Buffer name)
{
final Field field = getField(name);
if (field == null)
return null;
final int revision=_revision;
return new Enumeration()
{
Field f = field;
public boolean hasMoreElements()
{
while (f != null && f._revision != revision)
f = f._next;
return f != null;
}
public Object nextElement() throws NoSuchElementException
{
if (f == null) throw new NoSuchElementException();
Field n = f;
f = f._next;
while (f != null && f._revision != revision)
f = f._next;
return n.getValue();
}
};
}
/* -------------------------------------------------------------- */
/**
* Get multi field values with separator. The multiple values can be represented as separate
* headers of the same name, or by a single header using the separator(s), or a combination of
* both. Separators may be quoted.
*
* @param name the case-insensitive field name
* @param separators String of separators.
* @return Enumeration of the values, or null if no such header.
*/
public Enumeration getValues(String name, final String separators)
{
final Enumeration e = getValues(name);
if (e == null)
return null;
return new Enumeration()
{
QuotedStringTokenizer tok = null;
public boolean hasMoreElements()
{
if (tok != null && tok.hasMoreElements()) return true;
while (e.hasMoreElements())
{
String value = (String) e.nextElement();
tok = new QuotedStringTokenizer(value, separators, false, false);
if (tok.hasMoreElements()) return true;
}
tok = null;
return false;
}
public Object nextElement() throws NoSuchElementException
{
if (!hasMoreElements()) throw new NoSuchElementException();
String next = (String) tok.nextElement();
if (next != null) next = next.trim();
return next;
}
};
}
/* -------------------------------------------------------------- */
/**
* Set a field.
*
* @param name the name of the field
* @param value the value of the field. If null the field is cleared.
*/
public void put(String name, String value)
{
Buffer n = HttpHeaders.CACHE.lookup(name);
Buffer v = null;
if (value != null)
v = HttpHeaderValues.CACHE.lookup(value);
put(n, v, -1);
}
/* -------------------------------------------------------------- */
/**
* Set a field.
*
* @param name the name of the field
* @param value the value of the field. If null the field is cleared.
*/
public void put(Buffer name, String value)
{
Buffer v = HttpHeaderValues.CACHE.lookup(value);
put(name, v, -1);
}
/* -------------------------------------------------------------- */
/**
* Set a field.
*
* @param name the name of the field
* @param value the value of the field. If null the field is cleared.
*/
public void put(Buffer name, Buffer value)
{
put(name, value, -1);
}
/* -------------------------------------------------------------- */
/**
* Set a field.
*
* @param name the name of the field
* @param value the value of the field. If null the field is cleared.
* @param numValue the numeric value of the field (must match value) or -1
*/
public void put(Buffer name, Buffer value, long numValue)
{
if (value == null)
{
remove(name);
return;
}
if (!(name instanceof BufferCache.CachedBuffer)) name = HttpHeaders.CACHE.lookup(name);
Field field = (Field) _bufferMap.get(name);
// Look for value to replace.
if (field != null)
{
field.reset(value, numValue, _revision);
field = field._next;
while (field != null)
{
field.clear();
field = field._next;
}
return;
}
else
{
// new value;
field = new Field(name, value, numValue, _revision);
_fields.add(field);
_bufferMap.put(field.getNameBuffer(), field);
}
}
/* -------------------------------------------------------------- */
/**
* Set a field.
*
* @param name the name of the field
* @param list the List value of the field. If null the field is cleared.
*/
public void put(String name, List list)
{
if (list == null || list.size() == 0)
{
remove(name);
return;
}
Buffer n = HttpHeaders.CACHE.lookup(name);
Object v = list.get(0);
if (v != null)
put(n, HttpHeaderValues.CACHE.lookup(v.toString()));
else
remove(n);
if (list.size() > 1)
{
java.util.Iterator iter = list.iterator();
iter.next();
while (iter.hasNext())
{
v = iter.next();
if (v != null) put(n, HttpHeaderValues.CACHE.lookup(v.toString()));
}
}
}
/* -------------------------------------------------------------- */
/**
* Add to or set a field. If the field is allowed to have multiple values, add will add multiple
* headers of the same name.
*
* @param name the name of the field
* @param value the value of the field.
* @exception IllegalArgumentException If the name is a single valued field and already has a
* value.
*/
public void add(String name, String value) throws IllegalArgumentException
{
Buffer n = HttpHeaders.CACHE.lookup(name);
Buffer v = HttpHeaderValues.CACHE.lookup(value);
add(n, v, -1);
}
/* -------------------------------------------------------------- */
/**
* Add to or set a field. If the field is allowed to have multiple values, add will add multiple
* headers of the same name.
*
* @param name the name of the field
* @param value the value of the field.
* @exception IllegalArgumentException If the name is a single valued field and already has a
* value.
*/
public void add(Buffer name, Buffer value) throws IllegalArgumentException
{
add(name, value, -1);
}
/* -------------------------------------------------------------- */
/**
* Add to or set a field. If the field is allowed to have multiple values, add will add multiple
* headers of the same name.
*
* @param name the name of the field
* @param value the value of the field.
* @exception IllegalArgumentException If the name is a single valued field and already has a
* value.
*/
private void add(Buffer name, Buffer value, long numValue) throws IllegalArgumentException
{
if (value == null) throw new IllegalArgumentException("null value");
if (!(name instanceof BufferCache.CachedBuffer)) name = HttpHeaders.CACHE.lookup(name);
Field field = (Field) _bufferMap.get(name);
Field last = null;
if (field != null)
{
while (field != null && field._revision == _revision)
{
last = field;
field = field._next;
}
}
if (field != null)
field.reset(value, numValue, _revision);
else
{
// create the field
field = new Field(name, value, numValue, _revision);
// look for chain to add too
if (last != null)
{
field._prev = last;
last._next = field;
}
else
_bufferMap.put(field.getNameBuffer(), field);
_fields.add(field);
}
}
/* ------------------------------------------------------------ */
/**
* Remove a field.
*
* @param name
*/
public void remove(String name)
{
remove(HttpHeaders.CACHE.lookup(name));
}
/* ------------------------------------------------------------ */
/**
* Remove a field.
*
* @param name
*/
public void remove(Buffer name)
{
Field field = (Field) _bufferMap.get(name);
if (field != null)
{
while (field != null)
{
field.clear();
field = field._next;
}
}
}
/* -------------------------------------------------------------- */
/**
* Get a header as an long value. Returns the value of an integer field or -1 if not found. The
* case of the field name is ignored.
*
* @param name the case-insensitive field name
* @exception NumberFormatException If bad long found
*/
public long getLongField(String name) throws NumberFormatException
{
Field field = getField(name);
if (field != null && field._revision == _revision) return field.getLongValue();
return -1L;
}
/* -------------------------------------------------------------- */
/**
* Get a header as an long value. Returns the value of an integer field or -1 if not found. The
* case of the field name is ignored.
*
* @param name the case-insensitive field name
* @exception NumberFormatException If bad long found
*/
public long getLongField(Buffer name) throws NumberFormatException
{
Field field = getField(name);
if (field != null && field._revision == _revision) return field.getLongValue();
return -1L;
}
/* -------------------------------------------------------------- */
/**
* Get a header as a date value. Returns the value of a date field, or -1 if not found. The case
* of the field name is ignored.
*
* @param name the case-insensitive field name
*/
public long getDateField(String name)
{
Field field = getField(name);
if (field == null || field._revision != _revision) return -1;
if (field._numValue != -1) return field._numValue;
String val = valueParameters(BufferUtil.to8859_1_String(field._value), null);
if (val == null) return -1;
for (int i = 0; i < __dateReceiveInit; i++)
{
if (_dateReceive[i] == null) _dateReceive[i] = (SimpleDateFormat) __dateReceive[i].clone();
try
{
Date date = (Date) _dateReceive[i].parseObject(val);
return field._numValue = date.getTime();
}
catch (java.lang.Exception e)
{
}
}
if (val.endsWith(" GMT"))
{
val = val.substring(0, val.length() - 4);
for (int i = 0; i < __dateReceiveInit; i++)
{
try
{
Date date = (Date) _dateReceive[i].parseObject(val);
return field._numValue = date.getTime();
}
catch (java.lang.Exception e)
{
}
}
}
// The standard formats did not work. So we will lock the common format array
// and look at lazily creating the non-standard formats
synchronized (__dateReceive)
{
for (int i = __dateReceiveInit; i < _dateReceive.length; i++)
{
if (_dateReceive[i] == null)
{
if (__dateReceive[i]==null)
{
__dateReceive[i] = new SimpleDateFormat(__dateReceiveFmt[i], Locale.US);
__dateReceive[i].setTimeZone(__GMT);
}
_dateReceive[i] = (SimpleDateFormat) __dateReceive[i].clone();
}
try
{
Date date = (Date) _dateReceive[i].parseObject(val);
return field._numValue = date.getTime();
}
catch (java.lang.Exception e)
{
}
}
if (val.endsWith(" GMT"))
{
val = val.substring(0, val.length() - 4);
for (int i = 0; i < _dateReceive.length; i++)
{
try
{
Date date = (Date) _dateReceive[i].parseObject(val);
return field._numValue = date.getTime();
}
catch (java.lang.Exception e)
{
}
}
}
}
throw new IllegalArgumentException("Cannot convert date: " + val);
}
/* -------------------------------------------------------------- */
/**
* Sets the value of an long field.
*
* @param name the field name
* @param value the field long value
*/
public void putLongField(Buffer name, long value)
{
Buffer v = BufferUtil.toBuffer(value);
put(name, v, value);
}
/* -------------------------------------------------------------- */
/**
* Sets the value of an long field.
*
* @param name the field name
* @param value the field long value
*/
public void putLongField(String name, long value)
{
Buffer n = HttpHeaders.CACHE.lookup(name);
Buffer v = BufferUtil.toBuffer(value);
put(n, v, value);
}
/* -------------------------------------------------------------- */
/**
* Sets the value of an long field.
*
* @param name the field name
* @param value the field long value
*/
public void addLongField(String name, long value)
{
Buffer n = HttpHeaders.CACHE.lookup(name);
Buffer v = BufferUtil.toBuffer(value);
add(n, v, value);
}
/* -------------------------------------------------------------- */
/**
* Sets the value of an long field.
*
* @param name the field name
* @param value the field long value
*/
public void addLongField(Buffer name, long value)
{
Buffer v = BufferUtil.toBuffer(value);
add(name, v, value);
}
/* -------------------------------------------------------------- */
/**
* Sets the value of a date field.
*
* @param name the field name
* @param date the field date value
*/
public void putDateField(Buffer name, long date)
{
if (_dateBuffer == null)
{
_dateBuffer = new StringBuffer(32);
_calendar = new GregorianCalendar(__GMT);
}
_dateBuffer.setLength(0);
_calendar.setTimeInMillis(date);
formatDate(_dateBuffer, _calendar, false);
Buffer v = new ByteArrayBuffer(_dateBuffer.toString());
put(name, v, date);
}
/* -------------------------------------------------------------- */
/**
* Sets the value of a date field.
*
* @param name the field name
* @param date the field date value
*/
public void putDateField(String name, long date)
{
Buffer n = HttpHeaders.CACHE.lookup(name);
putDateField(n,date);
}
/* -------------------------------------------------------------- */
/**
* Sets the value of a date field.
*
* @param name the field name
* @param date the field date value
*/
public void addDateField(String name, long date)
{
if (_dateBuffer == null)
{
_dateBuffer = new StringBuffer(32);
_calendar = new GregorianCalendar(__GMT);
}
_dateBuffer.setLength(0);
_calendar.setTimeInMillis(date);
formatDate(_dateBuffer, _calendar, false);
Buffer n = HttpHeaders.CACHE.lookup(name);
Buffer v = new ByteArrayBuffer(_dateBuffer.toString());
add(n, v, date);
}
/* ------------------------------------------------------------ */
/**
* Format a set cookie value
*
* @param cookie The cookie.
* @param cookie2 If true, use the alternate cookie 2 header
*/
public void addSetCookie(Cookie cookie)
{
String name = cookie.getName();
String value = cookie.getValue();
int version = cookie.getVersion();
// Check arguments
if (name == null || name.length() == 0) throw new IllegalArgumentException("Bad cookie name");
// Format value and params
StringBuffer buf = new StringBuffer(128);
String name_value_params = null;
synchronized (buf)
{
QuotedStringTokenizer.quoteIfNeeded(buf, name);
buf.append('=');
if (value != null && value.length() > 0)
QuotedStringTokenizer.quoteIfNeeded(buf, value);
if (version > 0)
{
buf.append(";Version=");
buf.append(version);
String comment = cookie.getComment();
if (comment != null && comment.length() > 0)
{
buf.append(";Comment=");
QuotedStringTokenizer.quoteIfNeeded(buf, comment);
}
}
String path = cookie.getPath();
if (path != null && path.length() > 0)
{
buf.append(";Path=");
buf.append(URIUtil.encodePath(path));
}
String domain = cookie.getDomain();
if (domain != null && domain.length() > 0)
{
buf.append(";Domain=");
buf.append(domain.toLowerCase());// lowercase for IE
}
long maxAge = cookie.getMaxAge();
if (maxAge >= 0)
{
if (version == 0)
{
buf.append(";Expires=");
if (maxAge == 0)
buf.append(__01Jan1970);
else
formatDate(buf, System.currentTimeMillis() + 1000L * maxAge, true);
}
else
{
buf.append(";Max-Age=");
buf.append(maxAge);
}
}
else if (version > 0)
{
buf.append(";Discard");
}
if (cookie.getSecure())
{
buf.append(";Secure");
}
if (cookie instanceof HttpOnlyCookie) buf.append(";HttpOnly");
// TODO - straight to Buffer?
name_value_params = buf.toString();
}
put(HttpHeaders.EXPIRES_BUFFER, __01Jan1970_BUFFER);
add(HttpHeaders.SET_COOKIE_BUFFER, new ByteArrayBuffer(name_value_params));
}
/* -------------------------------------------------------------- */
public void put(Buffer buffer) throws IOException
{
for (int i = 0; i < _fields.size(); i++)
{
Field field = (Field) _fields.get(i);
if (field != null && field._revision == _revision) field.put(buffer);
}
BufferUtil.putCRLF(buffer);
}
/* -------------------------------------------------------------- */
public String toString()
{
try
{
ByteArrayBuffer buffer = new ByteArrayBuffer(4096);
put(buffer);
return BufferUtil.to8859_1_String(buffer);
}
catch (Exception e)
{
e.printStackTrace();
}
return null;
}
/* ------------------------------------------------------------ */
/**
* Clear the header.
*/
public void clear()
{
_revision++;
if (_revision > 1000000)
{
_revision = 0;
for (int i = _fields.size(); i-- > 0;)
{
Field field = (Field) _fields.get(i);
if (field != null) field.clear();
}
}
}
/* ------------------------------------------------------------ */
/**
* Destroy the header. Help the garbage collector by null everything that we can.
*/
public void destroy()
{
if (_fields != null)
{
for (int i = _fields.size(); i-- > 0;)
{
Field field = (Field) _fields.get(i);
if (field != null) field.destroy();
}
}
_fields = null;
_dateBuffer = null;
_calendar = null;
_dateReceive = null;
}
/* ------------------------------------------------------------ */
/**
* Add fields from another HttpFields instance. Single valued fields are replaced, while all
* others are added.
*
* @param fields
*/
public void add(HttpFields fields)
{
if (fields == null) return;
Enumeration e = fields.getFieldNames();
while (e.hasMoreElements())
{
String name = (String) e.nextElement();
Enumeration values = fields.getValues(name);
while (values.hasMoreElements())
add(name, (String) values.nextElement());
}
}
/* ------------------------------------------------------------ */
/**
* Get field value parameters. Some field values can have parameters. This method separates the
* value from the parameters and optionally populates a map with the paramters. For example:
*
* <PRE>
*
* FieldName : Value ; param1=val1 ; param2=val2
*
* </PRE>
*
* @param value The Field value, possibly with parameteres.
* @param parameters A map to populate with the parameters, or null
* @return The value.
*/
public static String valueParameters(String value, Map parameters)
{
if (value == null) return null;
int i = value.indexOf(';');
if (i < 0) return value;
if (parameters == null) return value.substring(0, i).trim();
StringTokenizer tok1 = new QuotedStringTokenizer(value.substring(i), ";", false, true);
while (tok1.hasMoreTokens())
{
String token = tok1.nextToken();
StringTokenizer tok2 = new QuotedStringTokenizer(token, "= ");
if (tok2.hasMoreTokens())
{
String paramName = tok2.nextToken();
String paramVal = null;
if (tok2.hasMoreTokens()) paramVal = tok2.nextToken();
parameters.put(paramName, paramVal);
}
}
return value.substring(0, i).trim();
}
/* ------------------------------------------------------------ */
private static Float __one = new Float("1.0");
private static Float __zero = new Float("0.0");
private static StringMap __qualities = new StringMap();
static
{
__qualities.put(null, __one);
__qualities.put("1.0", __one);
__qualities.put("1", __one);
__qualities.put("0.9", new Float("0.9"));
__qualities.put("0.8", new Float("0.8"));
__qualities.put("0.7", new Float("0.7"));
__qualities.put("0.66", new Float("0.66"));
__qualities.put("0.6", new Float("0.6"));
__qualities.put("0.5", new Float("0.5"));
__qualities.put("0.4", new Float("0.4"));
__qualities.put("0.33", new Float("0.33"));
__qualities.put("0.3", new Float("0.3"));
__qualities.put("0.2", new Float("0.2"));
__qualities.put("0.1", new Float("0.1"));
__qualities.put("0", __zero);
__qualities.put("0.0", __zero);
}
/* ------------------------------------------------------------ */
public static Float getQuality(String value)
{
if (value == null) return __zero;
int qe = value.indexOf(";");
if (qe++ < 0 || qe == value.length()) return __one;
if (value.charAt(qe++) == 'q')
{
qe++;
Map.Entry entry = __qualities.getEntry(value, qe, value.length() - qe);
if (entry != null) return (Float) entry.getValue();
}
HashMap params = new HashMap(3);
valueParameters(value, params);
String qs = (String) params.get("q");
Float q = (Float) __qualities.get(qs);
if (q == null)
{
try
{
q = new Float(qs);
}
catch (Exception e)
{
q = __one;
}
}
return q;
}
/* ------------------------------------------------------------ */
/**
* List values in quality order.
*
* @param enum Enumeration of values with quality parameters
* @return values in quality order.
*/
public static List qualityList(Enumeration e)
{
if (e == null || !e.hasMoreElements()) return Collections.EMPTY_LIST;
Object list = null;
Object qual = null;
// Assume list will be well ordered and just add nonzero
while (e.hasMoreElements())
{
String v = e.nextElement().toString();
Float q = getQuality(v);
if (q.floatValue() >= 0.001)
{
list = LazyList.add(list, v);
qual = LazyList.add(qual, q);
}
}
List vl = LazyList.getList(list, false);
if (vl.size() < 2) return vl;
List ql = LazyList.getList(qual, false);
// sort list with swaps
Float last = __zero;
for (int i = vl.size(); i-- > 0;)
{
Float q = (Float) ql.get(i);
if (last.compareTo(q) > 0)
{
Object tmp = vl.get(i);
vl.set(i, vl.get(i + 1));
vl.set(i + 1, tmp);
ql.set(i, ql.get(i + 1));
ql.set(i + 1, q);
last = __zero;
i = vl.size();
continue;
}
last = q;
}
ql.clear();
return vl;
}
/* ------------------------------------------------------------ */
/* ------------------------------------------------------------ */
/* ------------------------------------------------------------ */
public static final class Field
{
private Buffer _name;
private Buffer _value;
private String _stringValue;
private long _numValue;
private Field _next;
private Field _prev;
private int _revision;
/* ------------------------------------------------------------ */
private Field(Buffer name, Buffer value, long numValue, int revision)
{
_name = name.asImmutableBuffer();
_value = value.isImmutable() ? value : new View(value);
_next = null;
_prev = null;
_revision = revision;
_numValue = numValue;
_stringValue=null;
}
/* ------------------------------------------------------------ */
private void clear()
{
_revision = -1;
}
/* ------------------------------------------------------------ */
private void destroy()
{
_name = null;
_value = null;
_next = null;
_prev = null;
_stringValue=null;
}
/* ------------------------------------------------------------ */
/**
* Reassign a value to this field. Checks if the string value is the same as that in the char
* array, if so then just reuse existing value.
*/
private void reset(Buffer value, long numValue, int revision)
{
_revision = revision;
if (_value == null)
{
_value = value.isImmutable() ? value : new View(value);
_numValue = numValue;
_stringValue=null;
}
else if (value.isImmutable())
{
_value = value;
_numValue = numValue;
_stringValue=null;
}
else
{
if (_value instanceof View)
((View) _value).update(value);
else
_value = new View(value);
_numValue = numValue;
// check to see if string value is still valid.
if (_stringValue!=null)
{
if (_stringValue.length()!=value.length())
_stringValue=null;
else
{
for (int i=value.length();i-->0;)
{
if (value.peek(value.getIndex()+i)!=_stringValue.charAt(i))
{
_stringValue=null;
break;
}
}
}
}
}
}
/* ------------------------------------------------------------ */
public void put(Buffer buffer) throws IOException
{
int o=(_name instanceof CachedBuffer)?((CachedBuffer)_name).getOrdinal():-1;
if (o>=0)
buffer.put(_name);
else
{
int s=_name.getIndex();
int e=_name.putIndex();
while (s<e)
{
byte b=_name.peek(s++);
switch(b)
{
case '\r':
case '\n':
case ':' :
continue;
default:
buffer.put(b);
}
}
}
buffer.put((byte) ':');
buffer.put((byte) ' ');
o=(_value instanceof CachedBuffer)?((CachedBuffer)_value).getOrdinal():-1;
if (o>=0 || _numValue>=0)
buffer.put(_value);
else
{
int s=_value.getIndex();
int e=_value.putIndex();
while (s<e)
{
byte b=_value.peek(s++);
switch(b)
{
case '\r':
case '\n':
continue;
default:
buffer.put(b);
}
}
}
BufferUtil.putCRLF(buffer);
}
/* ------------------------------------------------------------ */
public String getName()
{
return BufferUtil.to8859_1_String(_name);
}
/* ------------------------------------------------------------ */
Buffer getNameBuffer()
{
return _name;
}
/* ------------------------------------------------------------ */
public int getNameOrdinal()
{
return HttpHeaders.CACHE.getOrdinal(_name);
}
/* ------------------------------------------------------------ */
public String getValue()
{
if (_stringValue==null)
_stringValue=BufferUtil.to8859_1_String(_value);
return _stringValue;
}
/* ------------------------------------------------------------ */
public Buffer getValueBuffer()
{
return _value;
}
/* ------------------------------------------------------------ */
public int getValueOrdinal()
{
return HttpHeaderValues.CACHE.getOrdinal(_value);
}
/* ------------------------------------------------------------ */
public int getIntValue()
{
return (int) getLongValue();
}
/* ------------------------------------------------------------ */
public long getLongValue()
{
if (_numValue == -1) _numValue = BufferUtil.toLong(_value);
return _numValue;
}
/* ------------------------------------------------------------ */
public String toString()
{
return ("[" + (_prev == null ? "" : "<-") + getName() + "="+_revision+"=" + _value + (_next == null ? "" : "->") + "]");
}
}
}
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