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Updates Cookie class to be more generic in attribute parsing and emit. #521

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127 changes: 91 additions & 36 deletions src/main/java/org/json/Cookie.java
@@ -1,5 +1,7 @@
package org.json;

import java.util.Locale;

/*
Copyright (c) 2002 JSON.org

Expand Down Expand Up @@ -27,6 +29,7 @@ of this software and associated documentation files (the "Software"), to deal
/**
* Convert a web browser cookie specification to a JSONObject and back.
* JSON and Cookies are both notations for name/value pairs.
* See also: <a href="https://tools.ietf.org/html/rfc6265">https://tools.ietf.org/html/rfc6265</a>
* @author JSON.org
* @version 2015-12-09
*/
Expand Down Expand Up @@ -65,77 +68,129 @@ public static String escape(String string) {

/**
* Convert a cookie specification string into a JSONObject. The string
* will contain a name value pair separated by '='. The name and the value
* must contain a name value pair separated by '='. The name and the value
* will be unescaped, possibly converting '+' and '%' sequences. The
* cookie properties may follow, separated by ';', also represented as
* name=value (except the secure property, which does not have a value).
* name=value (except the Attribute properties like "Secure" or "HttpOnly",
* which do not have a value. The value {@link Boolean#TRUE} will be used for these).
* The name will be stored under the key "name", and the value will be
* stored under the key "value". This method does not do checking or
* validation of the parameters. It only converts the cookie string into
* a JSONObject.
* a JSONObject. All attribute names are converted to lower case keys in the
* JSONObject (HttpOnly =&gt; httponly). If an attribute is specified more than
* once, only the value found closer to the end of the cookie-string is kept.
* @param string The cookie specification string.
* @return A JSONObject containing "name", "value", and possibly other
* members.
* @throws JSONException if a called function fails or a syntax error
* @throws JSONException If there is an error parsing the Cookie String.
* Cookie strings must have at least one '=' character and the 'name'
* portion of the cookie must not be blank.
*/
public static JSONObject toJSONObject(String string) throws JSONException {
public static JSONObject toJSONObject(String string) {
final JSONObject jo = new JSONObject();
String name;
JSONObject jo = new JSONObject();
Object value;


JSONTokener x = new JSONTokener(string);
jo.put("name", x.nextTo('='));

name = unescape(x.nextTo('=').trim());
//per RFC6265, if the name is blank, the cookie should be ignored.
if("".equals(name)) {
throw new JSONException("Cookies must have a 'name'");
}
jo.put("name", name);
// per RFC6265, if there is no '=', the cookie should be ignored.
// the 'next' call here throws an exception if the '=' is not found.
x.next('=');
jo.put("value", x.nextTo(';'));
jo.put("value", unescape(x.nextTo(';')).trim());
// discard the ';'
x.next();
// parse the remaining cookie attributes
while (x.more()) {
name = unescape(x.nextTo("=;"));
name = unescape(x.nextTo("=;")).trim().toLowerCase(Locale.ROOT);
// don't allow a cookies attributes to overwrite it's name or value.
if("name".equalsIgnoreCase(name)) {
throw new JSONException("Illegal attribute name: 'name'");
}
if("value".equalsIgnoreCase(name)) {
throw new JSONException("Illegal attribute name: 'value'");
}
// check to see if it's a flag property
if (x.next() != '=') {
if (name.equals("secure")) {
value = Boolean.TRUE;
} else {
throw x.syntaxError("Missing '=' in cookie parameter.");
}
value = Boolean.TRUE;
} else {
value = unescape(x.nextTo(';'));
value = unescape(x.nextTo(';')).trim();
x.next();
}
jo.put(name, value);
// only store non-blank attributes
if(!"".equals(name) && !"".equals(value)) {
jo.put(name, value);
}
}
return jo;
}


/**
* Convert a JSONObject into a cookie specification string. The JSONObject
* must contain "name" and "value" members.
* If the JSONObject contains "expires", "domain", "path", or "secure"
* members, they will be appended to the cookie specification string.
* All other members are ignored.
* must contain "name" and "value" members (case insensitive).
* If the JSONObject contains other members, they will be appended to the cookie
* specification string. User-Agents are instructed to ignore unknown attributes,
* so ensure your JSONObject is using only known attributes.
* See also: <a href="https://tools.ietf.org/html/rfc6265">https://tools.ietf.org/html/rfc6265</a>
* @param jo A JSONObject
* @return A cookie specification string
* @throws JSONException if a called function fails
* @throws JSONException thrown if the cookie has no name.
*/
public static String toString(JSONObject jo) throws JSONException {
StringBuilder sb = new StringBuilder();

sb.append(escape(jo.getString("name")));
sb.append("=");
sb.append(escape(jo.getString("value")));
if (jo.has("expires")) {
sb.append(";expires=");
sb.append(jo.getString("expires"));

String name = null;
Object value = null;
for(String key : jo.keySet()){
if("name".equalsIgnoreCase(key)) {
name = jo.getString(key).trim();
}
if("value".equalsIgnoreCase(key)) {
value=jo.getString(key).trim();
}
if(name != null && value != null) {
break;
}
}
if (jo.has("domain")) {
sb.append(";domain=");
sb.append(escape(jo.getString("domain")));

if(name == null || "".equals(name.trim())) {
throw new JSONException("Cookie does not have a name");
}
if (jo.has("path")) {
sb.append(";path=");
sb.append(escape(jo.getString("path")));
if(value == null) {
value = "";
}
if (jo.optBoolean("secure")) {
sb.append(";secure");

sb.append(escape(name));
sb.append("=");
sb.append(escape((String)value));

for(String key : jo.keySet()){
if("name".equalsIgnoreCase(key)
|| "value".equalsIgnoreCase(key)) {
// already processed above
continue;
}
value = jo.opt(key);
if(value instanceof Boolean) {
if(Boolean.TRUE.equals(value)) {
sb.append(';').append(escape(key));
}
// don't emit false values
} else {
sb.append(';')
.append(escape(key))
.append('=')
.append(escape(value.toString()));
}
}

return sb.toString();
}

Expand Down
38 changes: 26 additions & 12 deletions src/test/java/org/json/junit/CookieTest.java
Expand Up @@ -79,32 +79,46 @@ public void malFormedNameValueException() {
* Expects a JSONException.
*/
@Test
public void malFormedAttributeException() {
public void booleanAttribute() {
String cookieStr = "this=Cookie;myAttribute";
JSONObject jo = Cookie.toJSONObject(cookieStr);
assertTrue("has key 'name'", jo.has("name"));
assertTrue("has key 'value'", jo.has("value"));
assertTrue("has key 'myAttribute'", jo.has("myattribute"));
}

/**
* Attempts to create a JSONObject from an empty cookie string.<br>
* Note: Cookie throws an exception, but CookieList does not.<br>
* Expects a JSONException
*/
@Test
public void emptyStringCookieException() {
String cookieStr = "";
try {
Cookie.toJSONObject(cookieStr);
fail("Expecting an exception");
} catch (JSONException e) {
assertEquals("Expecting an exception message",
"Missing '=' in cookie parameter. at 23 [character 24 line 1]",
"Cookies must have a 'name'",
e.getMessage());
}
}

/**
* Attempts to create a JSONObject from an empty cookie string.<br>
*
* Attempts to create a JSONObject from an cookie string where the name is blank.<br>
* Note: Cookie throws an exception, but CookieList does not.<br>
* Expects a JSONException
*/
@Test
public void emptyStringCookieException() {
String cookieStr = "";
public void emptyNameCookieException() {
String cookieStr = " = value ";
try {
Cookie.toJSONObject(cookieStr);
fail("Expecting an exception");
} catch (JSONException e) {
assertEquals("Expecting an exception message",
"Expected '=' and instead saw '' at 0 [character 1 line 1]",
"Cookies must have a 'name'",
e.getMessage());
}
}
Expand Down Expand Up @@ -149,8 +163,8 @@ public void multiPartCookie() {
}

/**
* Cookie.toString() will omit the non-standard "thiswont=beIncluded"
* attribute, but the attribute is still stored in the JSONObject.
* Cookie.toString() will emit the non-standard "thiswont=beIncluded"
* attribute, and the attribute is still stored in the JSONObject.
* This test confirms both behaviors.
*/
@Test
Expand All @@ -163,15 +177,15 @@ public void convertCookieToString() {
"thisWont=beIncluded;"+
"secure";
String expectedCookieStr =
"{\"path\":\"/\","+
"{\"thiswont\":\"beIncluded\","+
"\"path\":\"/\","+
"\"expires\":\"Wed, 19-Mar-2014 17:53:53 GMT\","+
"\"domain\":\".yahoo.com\","+
"\"name\":\"PH\","+
"\"secure\":true,"+
"\"value\":\"deleted\"}";
// Add the nonstandard attribute to the expected cookie string
String expectedDirectCompareCookieStr =
expectedCookieStr.replaceAll("\\{", "\\{\"thisWont\":\"beIncluded\",");
String expectedDirectCompareCookieStr = expectedCookieStr;
// convert all strings into JSONObjects
JSONObject jsonObject = Cookie.toJSONObject(cookieStr);
JSONObject expectedJsonObject = new JSONObject(expectedCookieStr);
Expand Down