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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 com.predic8.membrane.core.http.cookie;
/**
* Static constants for this package.
*
* Source: http://tomcat.apache.org/
* License: http://www.apache.org/licenses/LICENSE-2.0
*
* @author unknown (Tomcat)
*/
public final class CookieSupport {
// --------------------------------------------------------------- Constants
/**
* If set to true, we parse cookies strictly according to the servlet,
* cookie and HTTP specs by default.
*/
public static final boolean STRICT_SERVLET_COMPLIANCE;
/**
* If true, cookie values are allowed to contain an equals character without
* being quoted.
*/
public static final boolean ALLOW_EQUALS_IN_VALUE;
/**
* If true, separators that are not explicitly dis-allowed by the v0 cookie
* spec but are disallowed by the HTTP spec will be allowed in v0 cookie
* names and values. These characters are: \"()/:<=>?@[\\]{} Note that the
* inclusion of / depends on the value of {@link #FWD_SLASH_IS_SEPARATOR}.
*/
public static final boolean ALLOW_HTTP_SEPARATORS_IN_V0;
/**
* If set to false, we don't use the IE6/7 Max-Age/Expires work around.
* Default is usually true. If STRICT_SERVLET_COMPLIANCE==true then default
* is false. Explicitly setting always takes priority.
*/
public static final boolean ALWAYS_ADD_EXPIRES;
/**
* If set to true, the / character will be treated as a
* separator. Default is usually false. If STRICT_SERVLET_COMPLIANCE==true
* then default is true. Explicitly setting always takes priority.
*/
public static final boolean FWD_SLASH_IS_SEPARATOR;
/**
* If true, name only cookies will be permitted.
*/
public static final boolean ALLOW_NAME_ONLY;
/**
* The list of separators that apply to version 0 cookies. To quote the
* spec, these are comma, semi-colon and white-space. The HTTP spec
* definition of linear white space is [CRLF] 1*( SP | HT )
*/
private static final char[] V0_SEPARATORS = {',', ';', ' ', '\t'};
private static final boolean[] V0_SEPARATOR_FLAGS = new boolean[128];
/**
* The list of separators that apply to version 1 cookies. This may or may
* not include '/' depending on the setting of
* {@link #FWD_SLASH_IS_SEPARATOR}.
*/
private static final char[] HTTP_SEPARATORS;
private static final boolean[] HTTP_SEPARATOR_FLAGS = new boolean[128];
static {
STRICT_SERVLET_COMPLIANCE = Boolean.valueOf(System.getProperty(
"org.apache.catalina.STRICT_SERVLET_COMPLIANCE",
"false")).booleanValue();
ALLOW_EQUALS_IN_VALUE = Boolean.valueOf(System.getProperty(
"org.apache.tomcat.util.http.ServerCookie.ALLOW_EQUALS_IN_VALUE",
"false")).booleanValue();
ALLOW_HTTP_SEPARATORS_IN_V0 = Boolean.valueOf(System.getProperty(
"org.apache.tomcat.util.http.ServerCookie.ALLOW_HTTP_SEPARATORS_IN_V0",
"false")).booleanValue();
String alwaysAddExpires = System.getProperty(
"org.apache.tomcat.util.http.ServerCookie.ALWAYS_ADD_EXPIRES");
if (alwaysAddExpires == null) {
ALWAYS_ADD_EXPIRES = !STRICT_SERVLET_COMPLIANCE;
} else {
ALWAYS_ADD_EXPIRES =
Boolean.valueOf(alwaysAddExpires).booleanValue();
}
String fwdSlashIsSeparator = System.getProperty(
"org.apache.tomcat.util.http.ServerCookie.FWD_SLASH_IS_SEPARATOR");
if (fwdSlashIsSeparator == null) {
FWD_SLASH_IS_SEPARATOR = STRICT_SERVLET_COMPLIANCE;
} else {
FWD_SLASH_IS_SEPARATOR =
Boolean.valueOf(fwdSlashIsSeparator).booleanValue();
}
ALLOW_NAME_ONLY = Boolean.valueOf(System.getProperty(
"org.apache.tomcat.util.http.ServerCookie.ALLOW_NAME_ONLY",
"false")).booleanValue();
/*
Excluding the '/' char by default violates the RFC, but
it looks like a lot of people put '/'
in unquoted values: '/': ; //47
'\t':9 ' ':32 '\"':34 '(':40 ')':41 ',':44 ':':58 ';':59 '<':60
'=':61 '>':62 '?':63 '@':64 '[':91 '\\':92 ']':93 '{':123 '}':125
*/
if (CookieSupport.FWD_SLASH_IS_SEPARATOR) {
HTTP_SEPARATORS = new char[] { '\t', ' ', '\"', '(', ')', ',', '/',
':', ';', '<', '=', '>', '?', '@', '[', '\\', ']', '{', '}' };
} else {
HTTP_SEPARATORS = new char[] { '\t', ' ', '\"', '(', ')', ',',
':', ';', '<', '=', '>', '?', '@', '[', '\\', ']', '{', '}' };
}
for (int i = 0; i < 128; i++) {
V0_SEPARATOR_FLAGS[i] = false;
HTTP_SEPARATOR_FLAGS[i] = false;
}
for (int i = 0; i < V0_SEPARATORS.length; i++) {
V0_SEPARATOR_FLAGS[V0_SEPARATORS[i]] = true;
}
for (int i = 0; i < HTTP_SEPARATORS.length; i++) {
HTTP_SEPARATOR_FLAGS[HTTP_SEPARATORS[i]] = true;
}
}
// ----------------------------------------------------------------- Methods
/**
* Returns true if the byte is a separator as defined by V0 of the cookie
* spec.
*/
public static final boolean isV0Separator(final char c) {
if (c < 0x20 || c >= 0x7f) {
if (c != 0x09) {
throw new IllegalArgumentException(
"Control character in cookie value or attribute.");
}
}
return V0_SEPARATOR_FLAGS[c];
}
public static boolean isV0Token(String value) {
if( value==null) {
return false;
}
int i = 0;
int len = value.length();
if (alreadyQuoted(value)) {
i++;
len--;
}
for (; i < len; i++) {
char c = value.charAt(i);
if (isV0Separator(c)) {
return true;
}
}
return false;
}
/**
* Returns true if the byte is a separator as defined by V1 of the cookie
* spec, RFC2109.
* @throws IllegalArgumentException if a control character was supplied as
* input
*/
public static final boolean isHttpSeparator(final char c) {
if (c < 0x20 || c >= 0x7f) {
if (c != 0x09) {
throw new IllegalArgumentException(
"Control character in cookie value or attribute.");
}
}
return HTTP_SEPARATOR_FLAGS[c];
}
public static boolean isHttpToken(String value) {
if( value==null) {
return false;
}
int i = 0;
int len = value.length();
if (alreadyQuoted(value)) {
i++;
len--;
}
for (; i < len; i++) {
char c = value.charAt(i);
if (isHttpSeparator(c)) {
return true;
}
}
return false;
}
public static boolean alreadyQuoted (String value) {
if (value==null || value.length() < 2) {
return false;
}
return (value.charAt(0)=='\"' && value.charAt(value.length()-1)=='\"');
}
// ------------------------------------------------------------- Constructor
private CookieSupport() {
// Utility class. Don't allow instances to be created.
}
}
