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| Warning | ||
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Please make sure you thoroughly test custom security configurations. By disabling the default security configuration you are fully responsible for HTTP security and thus of the security of the runtime. |
In Blueriq the HTTP security configuration is implemented in Java using a Configurer bean, as shown below.
| Code Block | ||
|---|---|---|
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@Configuration
@Order(50)
@ConditionalOnProperty(name = "blueriq.security.http.interactions.enabled", havingValue = "true", matchIfMissing = true)
public class RuntimeWebSecurityConfigurer extends WebSecurityConfigurerAdapter {
private static final Logger LOG = LoggerFactory.getLogger(RuntimeWebSecurityConfigurer.class);
@Autowired
@Qualifier("blueriqAuthenticationManager")
private AuthenticationManager authManager;
@Autowired
private SecurityConfigProperties securityProperties;
@Autowired
private MvcRedirectHelper redirectHelper;
@Autowired
private SecurityContextRepository securityContextRepository;
public static class Mappings {
public static final String TRIGGER_SECURITY_CHECK = "/server/noaccess.html";
public static final String PERFORM_SECURITY_CHECK = "/server/securityCheck";
public static final String LOGIN_PAGE = "/server/session/login.html";
public static final String LOGOUT_PAGE = "/server/session/logout.html";
public static final String LOGIN_SUCCESS_URL = "/server/start?loginSuccess=true";
public static final String LOGIN_PAGE_ERROR = "/server/session/login.html?loginError=true";
}
@Override
protected AuthenticationManager authenticationManager() throws Exception {
return this.authManager;
}
@Override
protected void configure(HttpSecurity http) throws Exception {
http //
.csrf().disable() //
.headers() //
.defaultsDisabled() //
.addHeaderWriter(new ClickJackingProtectionHeaderWriter(this.securityProperties)) //
.addHeaderWriter(new StrictTransportProtectionHeaderWriter(this.securityProperties)) //
.addHeaderWriter(new ContentTypeOptionsHeaderWriter(this.securityProperties)) //
.addHeaderWriter(new XssProtectionHeaderWriter(this.securityProperties)) //
.and() //
.sessionManagement() //
.sessionFixation() //
.none() //
.and() //
.authorizeRequests() //
.antMatchers(this.redirectHelper.getNoAccessPath()) //
.authenticated() //
.and() //
.formLogin() //
.defaultSuccessUrl(Mappings.LOGIN_SUCCESS_URL, true) //
.loginPage(Mappings.LOGIN_PAGE) //
.loginProcessingUrl(Mappings.PERFORM_SECURITY_CHECK) //
.permitAll() //
.failureUrl(Mappings.LOGIN_PAGE_ERROR) //
.and() //
.anonymous() //
.key("doesNotMatter").and() //
.securityContext() //
.securityContextRepository(securityContextRepository);
}
@Bean
@ConditionalOnMissingBean(SecurityContextRepository.class)
public SecurityContextRepository defaultSecurityContextRepository() {
if (LOG.isInfoEnabled()) {
LOG.info("Using default security context repository");
}
HttpSessionSecurityContextRepository repository = new HttpSessionSecurityContextRepository();
repository.setDisableUrlRewriting(true);
return repository;
}
@Autowired(required = false)
public void registerXssWhitelist(IXssWhitelist whitelist) {
XssSafeValueFormatter.register(whitelist);
}
@Autowired(required = false)
public void registerXssBlacklist(IXssBlacklist blacklist) {
XssSafeValueFormatter.register(blacklist);
}
}
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Before Blueriq 10, the HTTP security configuration was defined in XML configuration in the file |
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The HTTP security configuration requires an authentication manager bean which is used to authenticate and authorize users when certain URL patterns are requested. In a custom configuration, it is possible to either use a custom authentication manager or use the default Blueriq authentication manager which supports the registration of custom authentication providers. See Runtime Authentication for more details about how to register a custom authentication provider with the Blueriq authentication manager. The following example illustrates how the authentication manager can be overridden while keeping the default HTTP security configuration:
| Code Block |
|---|
@Configuration
public class CustomWebSecurityConfigurer extends RuntimeWebSecurityConfigurer {
@Autowired
@Qualifier("customAuthenticationManager")
private AuthenticationManager customAuthenticationManager;
@Override
public AuthenticationManager authenticationManager() throws Exception {
return customAuthenticationManager
}
} |
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By default a single URL requires authentication. Internally, the Blueriq Runtime will redirect to this URL whenever a flow requires authentication. Custom configurations may add other URL patterns that require authentication and/or authorization, as in the following example:
| Code Block |
|---|
@Configuration
public class CustomWebSecurityConfigurer extends WebSecurityConfigurerAdapter {
// 1. inject any required dependencies
@Autowired
private IAuthorisationManager authorisationManager;
@Autowired
@Qualifier("blueriqAuthenticationManager")
private AuthenticationManager authenticationManager;
// 2. specify the authenticationmanager
@Override
public AuthenticationManager authenticationManager() throws Exception {
return authenticationManager;
}
// 3. configure HTTP security
@Override
protected void configure(HttpSecurity http) throws Exception {
http()
.authorizeRequests()
.antMatchers(authorisationManager.getOnFlowAccessExceptionUrl()).authenticated()
.antMatchers("/server/custom/controller").hasRole("CUSTOM_ROLE")
}
} |
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| Note |
|---|
When the Blueriq RuntimeWebSecurityConfigurer is disabled in favour of a custom HTTP security configuration implementation for the Runtime it is advised to use Order 50 |
6. Noaccess.html
Blueriq uses a mechanism that whenever a flow is started, it is checked if the flow requires authentication and the current user has matching credentials. If this is not the case, the user is automatically redirected to the virtual page noaccess.html. This page does not exist, but is merely there to redirect to the login page as shown in the excerpt below from the HTTP security configuration.
| Code Block |
|---|
.authorizeRequests() .antMatchers(redirectHelper.getNoAccessPath()).authenticated() .and() |
...
If one chooses to configure a custom security approach, for instance by passing through credentials via HTTP headers, noaccess.html
...
6. Noaccess.html
Blueriq uses a mechanism that whenever a flow is started, it is checked if the flow requires authentication and the current user has matching credentials. If this is not the case, the user is automatically redirected to the virtual page noaccess.html. This page does not exist, but is merely there to redirect to the login page as shown in the excerpt below from the HTTP security configuration.
| Code Block |
|---|
.authorizeRequests()
.antMatchers(redirectHelper.getNoAccessPath()).authenticated()
.and() |
If one chooses to configure a custom security approach, for instance by passing through credentials via HTTP headers, noaccess.html will not be presented to the end user because of the divergent authentication approach. A custom page that indicates that no access is allowed is in that case out of Blueriq's hands and the responsibility of the project.
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