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*
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* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
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*
* Copyright 2004 The Apache Software Foundation
*
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* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
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package org.glassfish.grizzly.http.util;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import java.util.TimeZone;
import org.glassfish.grizzly.Buffer;
/**
* The general set of Cookie utility methods.
*
* @author Grizzly team
*/
public final class CookieUtils {
/**
* If set to true, then it will double quote the value and update cookie version
* when there is special characters.
*
* Tomcat uses STRICT_SERVLET_COMPLIANCE, whereas this code uses
* COOKIE_VERSION_ONE_STRICT_COMPLIANCE, which unlike the
* Tomcat variant not only affects cookie generation, but also cookie parsing.
* By default, cookies are parsed as v0 cookies, in order to maintain backward
* compatibility with GlassFish v2.x
*/
public static final boolean COOKIE_VERSION_ONE_STRICT_COMPLIANCE =
Boolean.getBoolean("org.glassfish.web.rfc2109_cookie_names_enforced");
public static final boolean RFC_6265_SUPPORT_ENABLED =
Boolean.getBoolean("org.glassfish.web.rfc_6265_support_enabled");
/**
* If set to false, we don't use the IE6/7 Max-Age/Expires work around
*/
public static final boolean ALWAYS_ADD_EXPIRES =
Boolean.valueOf(System.getProperty("org.glassfish.grizzly.util.http.ServerCookie.ALWAYS_ADD_EXPIRES", "true"));
/*
List of Separator Characters (see isSeparator())
Excluding the '/' char violates the RFC, but
it looks like a lot of people put '/'
in unquoted values: '/': ; //47
'\t':9 ' ':32 '\"':34 '\'':39 '(':40 ')':41 ',':44 ':':58 ';':59 '<':60
'=':61 '>':62 '?':63 '@':64 '[':91 '\\':92 ']':93 '{':123 '}':125
*/
static final char SEPARATORS[] = {'\t', ' ', '\"', '\'', '(', ')', ',',
':', ';', '<', '=', '>', '?', '@', '[', '\\', ']', '{', '}'};
static final boolean separators[] = new boolean[128];
static {
for (int i = 0; i < 128; i++) {
separators[i] = false;
}
for (char SEPARATOR : SEPARATORS) {
separators[SEPARATOR] = true;
}
}
static final String OLD_COOKIE_PATTERN = "EEE, dd-MMM-yyyy HH:mm:ss z";
public static final ThreadLocal OLD_COOKIE_FORMAT =
new ThreadLocal() {
@Override
protected SimpleDateFormat initialValue() {
// old cookie pattern format
SimpleDateFormat f = new SimpleDateFormat(OLD_COOKIE_PATTERN, Locale.US);
f.setTimeZone(TimeZone.getTimeZone("GMT"));
return f;
}
};
static final String ancientDate = OLD_COOKIE_FORMAT.get().format(new Date(10000));
static final String tspecials = ",; ";
static final String tspecials2 = "()<>@,;:\\\"/[]?={} \t";
static final String tspecials2NoSlash = "()<>@,;:\\\"[]?={} \t";
/*
* Tests a string and returns true if the string counts as a
* reserved token in the Java language.
*
* @param value the String to be tested
*
* @return true if the String is a reserved
* token; false if it is not
*/
public static boolean isToken(String value) {
return isToken(value, null);
}
public static boolean isToken(String value, String literals) {
String ts = (literals == null ? tspecials : literals);
if (value == null) {
return true;
}
int len = value.length();
for (int i = 0; i < len; i++) {
char c = value.charAt(i);
if (ts.indexOf(c) != -1) {
return false;
}
}
return true;
}
public static boolean containsCTL(String value, int version) {
if (value == null) {
return false;
}
int len = value.length();
for (int i = 0; i < len; i++) {
char c = value.charAt(i);
if (c < 0x20 || c >= 0x7f) {
if (c == 0x09) {
continue; //allow horizontal tabs
}
return true;
}
}
return false;
}
public static boolean isToken2(String value) {
return isToken2(value, null);
}
public static boolean isToken2(String value, String literals) {
String ts = (literals == null ? tspecials2 : literals);
if (value == null) {
return true;
}
int len = value.length();
for (int i = 0; i < len; i++) {
char c = value.charAt(i);
if (ts.indexOf(c) != -1) {
return false;
}
}
return true;
}
// XXX will be refactored soon!
public static boolean equals(String s, byte[] b, int start, int end) {
int blen = end - start;
if (b == null || blen != s.length()) {
return false;
}
int boff = start;
for (int i = 0; i < blen; i++) {
if (b[boff++] != s.charAt(i)) {
return false;
}
}
return true;
}
// XXX will be refactored soon!
public static boolean equals(String s, Buffer b, int start, int end) {
int blen = end - start;
if (b == null || blen != s.length()) {
return false;
}
int boff = start;
for (int i = 0; i < blen; i++) {
if (b.get(boff++) != s.charAt(i)) {
return false;
}
}
return true;
}
// XXX will be refactored soon!
public static boolean equals(String s1, String s2, int start, int end) {
int blen = end - start;
if (s2 == null || blen != s1.length()) {
return false;
}
int boff = start;
for (int i = 0; i < blen; i++) {
if (s2.charAt(boff++) != s1.charAt(i)) {
return false;
}
}
return true;
}
// XXX will be refactored soon!
public static boolean equalsIgnoreCase(String s, Buffer b, int start, int end) {
int blen = end - start;
if (b == null || blen != s.length()) {
return false;
}
int boff = start;
for (int i = 0; i < blen; i++) {
final int b1 = Ascii.toLower(b.get(boff++));
final int b2 = Ascii.toLower(s.charAt(i));
if (b1 != b2) {
return false;
}
}
return true;
}
// XXX will be refactored soon!
public static boolean equalsIgnoreCase(String s, byte[] b, int start, int end) {
int blen = end - start;
if (b == null || blen != s.length()) {
return false;
}
int boff = start;
for (int i = 0; i < blen; i++) {
final int b1 = Ascii.toLower(b[boff++]);
final int b2 = Ascii.toLower(s.charAt(i));
if (b1 != b2) {
return false;
}
}
return true;
}
// XXX will be refactored soon!
public static boolean equalsIgnoreCase(String s1, String s2, int start, int end) {
int blen = end - start;
if (s2 == null || blen != s1.length()) {
return false;
}
int boff = start;
for (int i = 0; i < blen; i++) {
final int b1 = Ascii.toLower(s1.charAt(i));
final int b2 = Ascii.toLower(s2.charAt(boff++));
if (b1 != b2) {
return false;
}
}
return true;
}
/**
* Returns true if the byte is a separator character as
* defined in RFC2619. Since this is called often, this
* function should be organized with the most probable
* outcomes first.
*/
public static boolean isSeparator(final int c) {
return isSeparator(c, true);
}
public static boolean isSeparator(final int c, final boolean parseAsVersion1) {
if (parseAsVersion1) {
return c > 0 && c < 126 && separators[c];
} else {
return (c == ';' || c == ',');
}
}
/**
* Returns true if the byte is a whitespace character as
* defined in RFC2619.
*/
public static boolean isWhiteSpace(final int c) {
return (c == ' ' || c == '\t' || c == '\n' || c == '\r' || c == '\f');
}
/**
* Given the starting position of a token, this gets the end of the
* token, with no separator characters in between.
* JVK
*/
public static int getTokenEndPosition(Buffer buffer, int off, int end) {
return getTokenEndPosition(buffer, off, end, true);
}
public static int getTokenEndPosition(Buffer buffer, int off, int end,
boolean parseAsVersion1) {
int pos = off;
while (pos < end && !isSeparator(buffer.get(pos), parseAsVersion1)) {
pos++;
}
if (pos > end) {
return end;
}
return pos;
}
/**
* Given the starting position of a token, this gets the end of the
* token, with no separator characters in between.
* JVK
*/
public static int getTokenEndPosition(byte[] bytes, int off, int end) {
return getTokenEndPosition(bytes, off, end, true);
}
public static int getTokenEndPosition(byte[] bytes, int off, int end,
boolean parseAsVersion1) {
int pos = off;
while (pos < end && !isSeparator(bytes[pos], parseAsVersion1)) {
pos++;
}
if (pos > end) {
return end;
}
return pos;
}
/**
* Given the starting position of a token, this gets the end of the
* token, with no separator characters in between.
* JVK
*/
public static int getTokenEndPosition(String s, int off, int end) {
return getTokenEndPosition(s, off, end, true);
}
public static int getTokenEndPosition(String s, int off, int end,
boolean parseAsVersion1) {
int pos = off;
while (pos < end && !isSeparator(s.charAt(pos), parseAsVersion1)) {
pos++;
}
if (pos > end) {
return end;
}
return pos;
}
/**
* Given a starting position after an initial quote character, this gets
* the position of the end quote. This escapes anything after a '\' char
* JVK RFC 2616
*/
public static int getQuotedValueEndPosition(Buffer buffer, int off, int end) {
int pos = off;
while (pos < end) {
if (buffer.get(pos) == '"') {
return pos;
} else if (buffer.get(pos) == '\\' && pos < (end - 1)) {
pos += 2;
} else {
pos++;
}
}
// Error, we have reached the end of the header w/o a end quote
return end;
}
/**
* Given a starting position after an initial quote character, this gets
* the position of the end quote. This escapes anything after a '\' char
* JVK RFC 2616
*/
public static int getQuotedValueEndPosition(byte[] bytes, int off, int end) {
int pos = off;
while (pos < end) {
if (bytes[pos] == '"') {
return pos;
} else if (bytes[pos] == '\\' && pos < (end - 1)) {
pos += 2;
} else {
pos++;
}
}
// Error, we have reached the end of the header w/o a end quote
return end;
}
/**
* Given a starting position after an initial quote character, this gets
* the position of the end quote. This escapes anything after a '\' char
* JVK RFC 2616
*/
public static int getQuotedValueEndPosition(String s, int off, int end) {
int pos = off;
while (pos < end) {
if (s.charAt(pos) == '"') {
return pos;
} else if (s.charAt(pos) == '\\' && pos < (end - 1)) {
pos += 2;
} else {
pos++;
}
}
// Error, we have reached the end of the header w/o a end quote
return end;
}
}
