/**
* Return a name/value string suitable for sending in a <tt>"Cookie"</tt> header as defined in RFC
* 2109 for backward compatibility with cookie version 0
*
* @param buffer The string buffer to use for output
* @param param The parameter.
* @param version The cookie version
*/
private void formatParam(final StringBuffer buffer, final NameValuePair param, int version) {
if (version < 1) {
buffer.append(param.getName());
buffer.append("=");
if (param.getValue() != null) {
buffer.append(param.getValue());
}
} else {
this.formatter.format(buffer, param);
}
}
/**
* Parse RFC 2109 specific cookie attribute and update the corresponsing {@link Cookie}
* properties.
*
* @param attribute {@link NameValuePair} cookie attribute from the <tt>Set- Cookie</tt>
* @param cookie {@link Cookie} to be updated
* @throws MalformedCookieException if an exception occurs during parsing
*/
public void parseAttribute(final NameValuePair attribute, final Cookie cookie)
throws MalformedCookieException {
if (attribute == null) {
throw new IllegalArgumentException("Attribute may not be null.");
}
if (cookie == null) {
throw new IllegalArgumentException("Cookie may not be null.");
}
final String paramName = attribute.getName().toLowerCase();
final String paramValue = attribute.getValue();
if (paramName.equals("path")) {
if (paramValue == null) {
throw new MalformedCookieException("Missing value for path attribute");
}
if (paramValue.trim().equals("")) {
throw new MalformedCookieException("Blank value for path attribute");
}
cookie.setPath(paramValue);
cookie.setPathAttributeSpecified(true);
} else if (paramName.equals("version")) {
if (paramValue == null) {
throw new MalformedCookieException("Missing value for version attribute");
}
try {
cookie.setVersion(Integer.parseInt(paramValue));
} catch (NumberFormatException e) {
throw new MalformedCookieException("Invalid version: " + e.getMessage());
}
} else {
super.parseAttribute(attribute, cookie);
}
}