Examples with Service org.neo4j.helpers.Service used on opensource projects

Example 1 with Service

use of org.neo4j.helpers.Service in project neo4j by neo4j.

the class EnterpriseSecurityModule method createPluginRealms.

private static List<PluginRealm> createPluginRealms(Config config, SecurityLog securityLog, SecureHasher secureHasher, SecurityConfig securityConfig) {
    List<PluginRealm> availablePluginRealms = new ArrayList<>();
    Set<Class> excludedClasses = new HashSet<>();
    if (securityConfig.pluginAuthentication && securityConfig.pluginAuthorization) {
        for (AuthPlugin plugin : Service.load(AuthPlugin.class)) {
            PluginRealm pluginRealm = new PluginRealm(plugin, config, securityLog, Clocks.systemClock(), secureHasher);
            availablePluginRealms.add(pluginRealm);
        }
    }
    if (securityConfig.pluginAuthentication) {
        for (AuthenticationPlugin plugin : Service.load(AuthenticationPlugin.class)) {
            PluginRealm pluginRealm;
            if (securityConfig.pluginAuthorization && plugin instanceof AuthorizationPlugin) {
                // This plugin implements both interfaces, create a combined plugin
                pluginRealm = new PluginRealm(plugin, (AuthorizationPlugin) plugin, config, securityLog, Clocks.systemClock(), secureHasher);
                // We need to make sure we do not add a duplicate when the AuthorizationPlugin service gets loaded
                // so we allow only one instance per combined plugin class
                excludedClasses.add(plugin.getClass());
            } else {
                pluginRealm = new PluginRealm(plugin, null, config, securityLog, Clocks.systemClock(), secureHasher);
            }
            availablePluginRealms.add(pluginRealm);
        }
    }
    if (securityConfig.pluginAuthorization) {
        for (AuthorizationPlugin plugin : Service.load(AuthorizationPlugin.class)) {
            if (!excludedClasses.contains(plugin.getClass())) {
                availablePluginRealms.add(new PluginRealm(null, plugin, config, securityLog, Clocks.systemClock(), secureHasher));
            }
        }
    }
    for (String pluginRealmName : securityConfig.pluginAuthProviders) {
        if (!availablePluginRealms.stream().anyMatch(r -> r.getName().equals(pluginRealmName))) {
            throw illegalConfiguration(format("Failed to load auth plugin '%s'.", pluginRealmName));
        }
    }
    List<PluginRealm> realms = availablePluginRealms.stream().filter(realm -> securityConfig.pluginAuthProviders.contains(realm.getName())).collect(Collectors.toList());
    boolean missingAuthenticatingRealm = securityConfig.onlyPluginAuthentication() && !realms.stream().anyMatch(PluginRealm::canAuthenticate);
    boolean missingAuthorizingRealm = securityConfig.onlyPluginAuthorization() && !realms.stream().anyMatch(PluginRealm::canAuthorize);
    if (missingAuthenticatingRealm || missingAuthorizingRealm) {
        String missingProvider = (missingAuthenticatingRealm && missingAuthorizingRealm) ? "authentication or authorization" : missingAuthenticatingRealm ? "authentication" : "authorization";
        throw illegalConfiguration(format("No plugin %s provider loaded even though required by configuration.", missingProvider));
    }
    return realms;
}