sec:authorize and sec:authentication annotations don't work
I have a Spring + Thymeleaf project with the following view code.
<!DOCTYPE html SYSTEM "http://www.thymeleaf.org/dtd/xhtml1-strict-thymeleaf-spring3-3.dtd">
<html
xmlns="http://www.w3.org/1999/xhtml"
xmlns:th="http://www.thymeleaf.org"
xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity3">
<head>
<title>Contacts</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
</head>
<body>
<div id="content">
<h1>Welcome to the site!</h1>
<p th:if="${loginError}">Wrong user or password</p>
<form th:action="@{/j_spring_security_check}" method="post">
<label for="j_username">Email address</label>:
<input type="text" id="j_username" name="j_username"/> <br/>
<label for="j_password">Password</label>:
<input type="password" id="j_password" name="j_password"/> <br/>
<input type="submit" value="Log in"/>
</form>
</div>
<div sec:authorize="isAuthenticated()">
User: <span sec:authentication="name">miquel</span>
</div>
</body>
</html>
The sec:authorize and sec:authentication attributes don't work as expected - the div is always shown, even if no user is logged in, and the span always reads "miquel".
Follows a relevant snippet from my controller class.
@RequestMapping(value = "/welcome.html")
public String wellcome() {
Authentication auth = SecurityContextHolder.getContext().getAuthentication();
System.out.println("username: " + auth.getName());
return "home";
}
The println statement works as expected - if no user is logged in, it prints "anonymousUser", otherwise the username.
What am I doing wrong?
Answer
After comparing my application closely to the Thymeleaf & Spring Security demo applicaiton, I discovered the source of the error.
Apparently, in order for Thymeleaf to process the sec:authorize and sec:authentication attributes, you need to register SpringSecurityDialect as an additional dialect of the template engine bean.
<bean id="templateEngine" class="org.thymeleaf.spring3.SpringTemplateEngine">
<property name="templateResolver" ref="templateResolver" />
<property name="additionalDialects">
<set>
<bean class="org.thymeleaf.extras.springsecurity3.dialect.SpringSecurityDialect" />
</set>
</property>
</bean>
This is surprising as there is no mention of that fact on the related Thymeleaf documentation page. I hope this helps others who will face the same issue in future.