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// Copyright (c) 2003-present, Jodd Team (http://jodd.org)
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
package jodd.http;
import jodd.util.StringUtil;
/**
* Cookie object. Simple cookie data holder, cookie header parser and generator.
*/
public class Cookie {
// the value of the cookie itself
private String name;
private String value;
// attributes encoded in the header's cookie fields
private String comment; // ;Comment=VALUE ... describes cookie's use
// ;Discard ... implied by maxAge < 0
private String domain; // ;Domain=VALUE ... domain that sees cookie
private Integer maxAge; // ;Max-Age=VALUE ... cookies auto-expire
private String expires; // ;Expires= ... expires values
private String path; // ;Path=VALUE ... URLs that see the cookie
private boolean secure; // ;Secure ... e.g. use SSL
private Integer version; // ;Version=1 ... means RFC 2109++ style
private boolean httpOnly; // ;HttpOnly
/**
* Creates cookie with specified name and value.
*
* The name must conform to RFC 2109. That means it can contain
* only ASCII alphanumeric characters and cannot contain commas,
* semicolons, or white space or begin with a $ character.
*
* The value can be anything the server chooses to send.
*/
public Cookie(final String name, final String value) {
setName(name);
setValue(value);
}
/**
* Parses cookie data from given user-agent string.
*/
public Cookie(String cookie) {
int from = 0;
int ndx = 0;
cookie = cookie.trim();
while (ndx < cookie.length()) {
ndx = cookie.indexOf(';', from);
if (ndx == -1) {
// last chunk
ndx = cookie.length();
}
int ndx2 = cookie.indexOf('=', from);
String name;
String value;
if (ndx2 != -1 && ndx2 < ndx) {
name = cookie.substring(from, ndx2).trim();
value = cookie.substring(ndx2 + 1, ndx).trim();
} else {
if (from == ndx) {
ndx++;
continue;
}
name = cookie.substring(from, ndx).trim();
value = null;
}
if (value != null && name.equalsIgnoreCase("Max-Age")) {
setMaxAge(Integer.parseInt(value));
} else if (name.equalsIgnoreCase("Comment")) {
setComment(value);
} else if (name.equalsIgnoreCase("Domain")) {
setDomain(value);
} else if (name.equalsIgnoreCase("Path")) {
setPath(value);
} else if (name.equalsIgnoreCase("Secure")) {
setSecure(true);
} else if (value != null && name.equalsIgnoreCase("Version")) {
setVersion(Integer.parseInt(value));
} else if (name.equalsIgnoreCase("HttpOnly")) {
setHttpOnly(true);
} else if (name.equalsIgnoreCase("Expires")) {
setExpires(value);
} else if (this.name == null && !StringUtil.isBlank(name)) {
setName(name);
setValue(value);
}
// continue
from = ndx + 1;
}
}
/**
* Sets the cookie name and checks for validity.
*/
private void setName(final String name) {
if (name.contains(";") || name.contains(",") || name.startsWith("$")) {
throw new IllegalArgumentException("Invalid cookie name:" + name);
}
for (int n = 0; n < name.length(); n++) {
char c = name.charAt(n);
if (c <= 0x20 || c >= 0x7f) {
throw new IllegalArgumentException("Invalid cookie name:" + name);
}
}
this.name = name;
}
/**
* Returns the comment describing the purpose of this cookie, or
* null if the cookie has no comment.
*/
public String getComment() {
return comment;
}
/**
* Specifies a comment that describes a cookie's purpose.
* The comment is useful if the browser presents the cookie
* to the user.
*/
public Cookie setComment(final String purpose) {
comment = purpose;
return this;
}
/**
* Returns the domain name set for this cookie. The form of
* the domain name is set by RFC 2109.
*/
public String getDomain() {
return domain;
}
/**
* Specifies the domain within which this cookie should be presented.
*
* The form of the domain name is specified by RFC 2109. A domain
* name begins with a dot (.foo.com) and means that
* the cookie is visible to servers in a specified Domain Name System
* (DNS) zone (for example, www.foo.com, but not
* a.b.foo.com). By default, cookies are only returned
* to the server that sent them.
*/
public Cookie setDomain(final String pattern) {
domain = pattern.toLowerCase(); // IE allegedly needs this
return this;
}
/**
* Returns the maximum age of the cookie, specified in seconds,
* By default, -1 indicating the cookie will persist
* until browser shutdown.
*/
public Integer getMaxAge() {
return maxAge;
}
/**
* Sets the maximum age of the cookie in seconds.
*
* A positive value indicates that the cookie will expire
* after that many seconds have passed. Note that the value is
* the maximum age when the cookie will expire, not the cookie's
* current age.
*
* A negative value means
* that the cookie is not stored persistently and will be deleted
* when the Web browser exits. A zero value causes the cookie
* to be deleted.
*/
public Cookie setMaxAge(final int expiry) {
maxAge = Integer.valueOf(expiry);
return this;
}
/**
* Returns the path on the server
* to which the browser returns this cookie. The
* cookie is visible to all subpaths on the server.
*/
public String getPath() {
return path;
}
/**
* Specifies a path for the cookie
* to which the client should return the cookie.
*
* The cookie is visible to all the pages in the directory
* you specify, and all the pages in that directory's subdirectories.
* A cookie's path must include the servlet that set the cookie,
* for example, /catalog, which makes the cookie
* visible to all directories on the server under /catalog.
*
*
Consult RFC 2109 (available on the Internet) for more
* information on setting path names for cookies.
*/
public Cookie setPath(final String uri) {
path = uri;
return this;
}
/**
* Returns true if the browser is sending cookies
* only over a secure protocol, or false if the
* browser can send cookies using any protocol.
*/
public boolean isSecure() {
return secure;
}
/**
* Indicates to the browser whether the cookie should only be sent
* using a secure protocol, such as HTTPS or SSL.
*/
public Cookie setSecure(final boolean flag) {
secure = flag;
return this;
}
/**
* Returns the name of the cookie. The name cannot be changed after
* creation.
*/
public String getName() {
return name;
}
/**
* Returns the value of the cookie.
*/
public String getValue() {
return value;
}
/**
* Assigns a new value to a cookie after the cookie is created.
* If you use a binary value, you may want to use BASE64 encoding.
*/
public Cookie setValue(final String newValue) {
value = newValue;
return this;
}
/**
* Returns the version of the protocol this cookie complies
* with. Version 1 complies with RFC 2109,
* and version 0 complies with the original
* cookie specification drafted by Netscape. Cookies provided
* by a browser use and identify the browser's cookie version.
*/
public Integer getVersion() {
return version;
}
/**
* Sets the version of the cookie protocol this cookie complies
* with. Version 0 complies with the original Netscape cookie
* specification. Version 1 complies with RFC 2109.
*/
public Cookie setVersion(final int version) {
this.version = Integer.valueOf(version);
return this;
}
public boolean isHttpOnly() {
return httpOnly;
}
public Cookie setHttpOnly(final boolean httpOnly) {
this.httpOnly = httpOnly;
return this;
}
public String getExpires() {
return expires;
}
public Cookie setExpires(final String expires) {
this.expires = expires;
return this;
}
@Override
public String toString() {
StringBuilder cookie = new StringBuilder();
cookie.append(name).append('=').append(value);
if (maxAge != null) {
cookie.append("; Max-Age=").append(maxAge);
}
if (expires != null) {
cookie.append("; Expires=").append(expires);
}
if (comment != null) {
cookie.append("; Comment=").append(comment);
}
if (domain != null) {
cookie.append("; Domain=").append(domain);
}
if (path != null) {
cookie.append("; Path=").append(path);
}
if (secure) {
cookie.append("; Secure");
}
if (version != null) {
cookie.append("; Version=").append(version);
}
if (httpOnly) {
cookie.append("; HttpOnly");
}
return cookie.toString();
}
}