Shiro Security Component
Available as of Camel 2.5
The shiro-security component in Camel is a security focused component, based on the Apache Shiro security project.
Apache Shiro is a powerful and flexible open-source security framework that cleanly handles authentication, authorization, enterprise session management and cryptography. The objective of the Apache Shiro project is to provide the most robust and comprehensive application security framework available while also being very easy to understand and extremely simple to use.
This camel shiro-security component allows authentication and authorization support to be applied to different segments of a camel route.
Shiro security is applied on a route using a Camel Policy. A Policy in Camel utilizes a strategy pattern for applying interceptors on Camel Processors. It offering the ability to apply cross-cutting concerns (for example. security, transactions etc) on sections/segments of a camel route.
Maven users will need to add the following dependency to their pom.xml
for this component:
Code Block | ||||
---|---|---|---|---|
| ||||
<dependency>
<groupId>org.apache.camel</groupId>
<artifactId>camel-shiro</artifactId>
<version>x.x.x</version>
<!-- use the same version as your Camel core version -->
</dependency>
|
Shiro Security Basics
To employ Shiro security on a camel route, a ShiroSecurityPolicy object must be instantiated with security configuration details (including users, passwords, roles etc). This object must then be applied to a camel route. This ShiroSecurityPolicy Object may also be registered in the Camel registry (JNDI or ApplicationContextRegistry) and then utilized on other routes in the Camel Context.
Configuration details are provided to the ShiroSecurityPolicy using an Ini file (properties file) or an Ini object. The Ini file is a standard Shiro configuration file containing user/role details as shown below
Code Block |
---|
[users]
# user 'ringo' with password 'starr' and the 'sec-level1' role
ringo = starr, sec-level1
george = harrison, sec-level2
john = lennon, sec-level3
paul = mccartney, sec-level3
[roles]
# 'sec-level3' role has all permissions, indicated by the
# wildcard '*'
sec-level3 = *
# The 'sec-level2' role can do anything with access of permission
# readonly (*) to help
sec-level2 = zone1:*
# The 'sec-level1' role can do anything with access of permission
# readonly
sec-level1 = zone1:readonly:*
|
Instantiating a ShiroSecurityPolicy Object
A ShiroSecurityPolicy object is instantiated as follows
Code Block |
---|
private final String iniResourcePath = "classpath:shiro.ini";
private final byte[] passPhrase = {
(byte) 0x08, (byte) 0x09, (byte) 0x0A, (byte) 0x0B,
(byte) 0x0C, (byte) 0x0D, (byte) 0x0E, (byte) 0x0F,
(byte) 0x10, (byte) 0x11, (byte) 0x12, (byte) 0x13,
(byte) 0x14, (byte) 0x15, (byte) 0x16, (byte) 0x17};
List<permission> permissionsList = new ArrayList<permission>();
Permission permission = new WildcardPermission("zone1:readwrite:*");
permissionsList.add(permission);
final ShiroSecurityPolicy securityPolicy =
new ShiroSecurityPolicy(iniResourcePath, passPhrase, true, permissionsList);
|
ShiroSecurityPolicy Options
Div | ||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ||||||||||||||||||||||||||||||||||||||||
|
Applying Shiro Authentication on a Camel Route
The ShiroSecurityPolicy, tests and permits incoming message exchanges containing a encrypted SecurityToken in the Message Header to proceed further following proper authentication. The SecurityToken object contains a Username/Password details that are used to determine where the user is a valid user.
Code Block |
---|
protected RouteBuilder createRouteBuilder() throws Exception {
final ShiroSecurityPolicy securityPolicy =
new ShiroSecurityPolicy("classpath:shiro.ini", passPhrase);
return new RouteBuilder() {
public void configure() {
onException(UnknownAccountException.class).
to("mock:authenticationException");
onException(IncorrectCredentialsException.class).
to("mock:authenticationException");
onException(LockedAccountException.class).
to("mock:authenticationException");
onException(AuthenticationException.class).
to("mock:authenticationException");
from("direct:secureEndpoint").
to("log:incoming payload").
policy(securityPolicy).
to("mock:success");
}
};
}
|
Applying Shiro Authorization on a Camel Route
Authorization can be applied on a camel route by associating a Permissions List with the ShiroSecurityPolicy. The Permissions List specifies the permissions necessary for the user to proceed with the execution of the route segment. If the user does not have the proper permission set, the request is not authorized to continue any further.
Code Block |
---|
protected RouteBuilder createRouteBuilder() throws Exception {
final ShiroSecurityPolicy securityPolicy =
new ShiroSecurityPolicy("./src/test/resources/securityconfig.ini", passPhrase);
return new RouteBuilder() {
public void configure() {
onException(UnknownAccountException.class).
to("mock:authenticationException");
onException(IncorrectCredentialsException.class).
to("mock:authenticationException");
onException(LockedAccountException.class).
to("mock:authenticationException");
onException(AuthenticationException.class).
to("mock:authenticationException");
from("direct:secureEndpoint").
to("log:incoming payload").
policy(securityPolicy).
to("mock:success");
}
};
}
|
Creating a ShiroSecurityToken and injecting it into a Message Exchange
A ShiroSecurityToken object may be created and injected into a Message Exchange using a Shiro Processor called ShiroSecurityTokenInjector. An example of injecting a ShiroSecurityToken using a ShiroSecurityTokenInjector in the client is shown below
Code Block |
---|
ShiroSecurityToken shiroSecurityToken = new ShiroSecurityToken("ringo", "starr");
ShiroSecurityTokenInjector shiroSecurityTokenInjector =
new ShiroSecurityTokenInjector(shiroSecurityToken, passPhrase);
from("direct:client").
process(shiroSecurityTokenInjector).
to("direct:secureEndpoint");
|
Sending Messages to routes secured by a ShiroSecurityPolicy
Messages and Message Exchanges sent along the camel route where the security policy is applied need to be accompanied by a SecurityToken in the Exchange Header. The SecurityToken is an encrypted object that holds a Username and Password. The SecurityToken is encrypted using AES 128 bit security by default and can be changed to any cipher of your choice.
Given below is an example of how a request may be sent using a ProducerTemplate in Camel along with a SecurityToken
Code Block |
---|
@Test
public void testSuccessfulShiroAuthenticationWithNoAuthorization() throws Exception {
//Incorrect password
ShiroSecurityToken shiroSecurityToken = new ShiroSecurityToken("ringo", "stirr");
// TestShiroSecurityTokenInjector extends ShiroSecurityTokenInjector
TestShiroSecurityTokenInjector shiroSecurityTokenInjector =
new TestShiroSecurityTokenInjector(shiroSecurityToken, passPhrase);
successEndpoint.expectedMessageCount(1);
failureEndpoint.expectedMessageCount(0);
template.send("direct:secureEndpoint", shiroSecurityTokenInjector);
successEndpoint.assertIsSatisfied();
failureEndpoint.assertIsSatisfied();
}
|
Sending Messages to routes secured by a ShiroSecurityPolicy (much easier from Camel 2.12 onwards)
From Camel 2.12 onwards its even easier as you can provide the subject in two different ways.
Using ShiroSecurityToken
You can send a message to a Camel route with a header of key ShiroSecurityConstants.SHIRO_SECURITY_TOKEN
of the type org.apache.camel.component.shiro.security.ShiroSecurityToken
that contains the username and password. For example:
Code Block |
---|
ShiroSecurityToken shiroSecurityToken = new ShiroSecurityToken("ringo", "starr");
template.sendBodyAndHeader("direct:secureEndpoint", "Beatle Mania", ShiroSecurityConstants.SHIRO_SECURITY_TOKEN, shiroSecurityToken);
|
You can also provide the username and password in two different headers as shown below:
Code Block |
---|
Map<String, Object> headers = new HashMap<String, Object>();
headers.put(ShiroSecurityConstants.SHIRO_SECURITY_USERNAME, "ringo");
headers.put(ShiroSecurityConstants.SHIRO_SECURITY_PASSWORD, "starr");
template.sendBodyAndHeaders("direct:secureEndpoint", "Beatle Mania", headers);
|
When you use the username and password headers, then the ShiroSecurityPolicy in the Camel route will automatic transform those into a single header with key ShiroSecurityConstants.SHIRO_SECURITY_TOKEN with the token. Then token is either a ShiroSecurityToken
instance, or a base64 representation as a String (the latter is when you have set base64=true).