Example usage for org.springframework.security.authentication.jaas DefaultJaasAuthenticationProvider authenticate

Introduction

In this page you can find the example usage for org.springframework.security.authentication.jaas DefaultJaasAuthenticationProvider authenticate.

Prototype

public Authentication authenticate(Authentication auth) throws AuthenticationException 

Source Link

Document

Attempts to login the user given the Authentication objects principal and credential

Usage

From source file:org.apache.atlas.web.security.AtlasPamAuthenticationProvider.java

private Authentication getPamAuthentication(Authentication authentication) {
    try {/*from   w  w w .j a  v  a  2  s .  c  o  m*/
        DefaultJaasAuthenticationProvider jaasAuthenticationProvider = new DefaultJaasAuthenticationProvider();
        String loginModuleName = "org.apache.atlas.web.security.PamLoginModule";
        AppConfigurationEntry.LoginModuleControlFlag controlFlag = AppConfigurationEntry.LoginModuleControlFlag.REQUIRED;
        Properties properties = ConfigurationConverter
                .getProperties(ApplicationProperties.get().subset("atlas.authentication.method.pam"));
        Map<String, String> options = new HashMap<>();
        for (String key : properties.stringPropertyNames()) {
            String value = properties.getProperty(key);
            options.put(key, value);
        }
        if (!options.containsKey("service"))
            options.put("service", "atlas-login");
        AppConfigurationEntry appConfigurationEntry = new AppConfigurationEntry(loginModuleName, controlFlag,
                options);
        AppConfigurationEntry[] appConfigurationEntries = new AppConfigurationEntry[] { appConfigurationEntry };
        Map<String, AppConfigurationEntry[]> appConfigurationEntriesOptions = new HashMap<String, AppConfigurationEntry[]>();
        appConfigurationEntriesOptions.put("SPRINGSECURITY", appConfigurationEntries);
        Configuration configuration = new InMemoryConfiguration(appConfigurationEntriesOptions);
        jaasAuthenticationProvider.setConfiguration(configuration);
        UserAuthorityGranter authorityGranter = new UserAuthorityGranter();
        UserAuthorityGranter[] authorityGranters = new UserAuthorityGranter[] { authorityGranter };
        jaasAuthenticationProvider.setAuthorityGranters(authorityGranters);
        jaasAuthenticationProvider.afterPropertiesSet();

        String userName = authentication.getName();
        String userPassword = "";
        if (authentication.getCredentials() != null) {
            userPassword = authentication.getCredentials().toString();
        }

        // getting user authenticated
        if (userName != null && userPassword != null && !userName.trim().isEmpty()
                && !userPassword.trim().isEmpty()) {
            final List<GrantedAuthority> grantedAuths = getAuthorities(userName);

            final UserDetails principal = new User(userName, userPassword, grantedAuths);

            final Authentication finalAuthentication = new UsernamePasswordAuthenticationToken(principal,
                    userPassword, grantedAuths);

            authentication = jaasAuthenticationProvider.authenticate(finalAuthentication);
            authentication = getAuthenticationWithGrantedAuthority(authentication);
            return authentication;
        } else {
            return authentication;
        }

    } catch (Exception e) {
        logger.debug("Pam Authentication Failed:", e);
    }
    return authentication;
}

---