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provide a custom KeycloakConfigResolver instance for servlet filter.

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This commit is contained in:
Hendrik Ebbers 2017-06-01 14:35:12 +02:00
parent b71bb96540
commit 4d5e03049e
1 changed files with 54 additions and 30 deletions
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84
adapters/oidc/servlet-filter/src/main/java/org/keycloak/adapters/servlet/KeycloakOIDCFilter.java
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@ -54,72 +54,96 @@ import java.util.regex.Pattern;
*/
public class KeycloakOIDCFilter implements Filter {
private final static Logger log = Logger.getLogger("" + KeycloakOIDCFilter.class);
public static final String SKIP_PATTERN_PARAM = "keycloak.config.skipPattern";
public static final String CONFIG_RESOLVER_PARAM = "keycloak.config.resolver";
public static final String CONFIG_FILE_PARAM = "keycloak.config.file";
public static final String CONFIG_PATH_PARAM = "keycloak.config.path";
protected AdapterDeploymentContext deploymentContext;
protected SessionIdMapper idMapper = new InMemorySessionIdMapper();
protected NodesRegistrationManagement nodesRegistrationManagement;
protected Pattern skipPattern;
private final static Logger log = Logger.getLogger(""+KeycloakOIDCFilter.class);
private final KeycloakConfigResolver definedconfigResolver;
/**
* Constructor that can be used to define a {@code KeycloakConfigResolver} that will be used at initialization to
* provide the {@code KeycloakDeployment}.
* @param definedconfigResolver the resolver
*/
public KeycloakOIDCFilter(KeycloakConfigResolver definedconfigResolver) {
this.definedconfigResolver = definedconfigResolver;
}
public KeycloakOIDCFilter() {
this(null);
}
@Override
public void init(final FilterConfig filterConfig) throws ServletException {
String skipPatternDefinition = filterConfig.getInitParameter(SKIP_PATTERN_PARAM);
if (skipPatternDefinition != null) {
skipPattern = Pattern.compile(skipPatternDefinition, Pattern.DOTALL);
}
String configResolverClass = filterConfig.getInitParameter("keycloak.config.resolver");
if (configResolverClass != null) {
try {
KeycloakConfigResolver configResolver = (KeycloakConfigResolver) getClass().getClassLoader().loadClass(configResolverClass).newInstance();
deploymentContext = new AdapterDeploymentContext(configResolver);
log.log(Level.INFO, "Using {0} to resolve Keycloak configuration on a per-request basis.", configResolverClass);
} catch (Exception ex) {
log.log(Level.FINE, "The specified resolver {0} could NOT be loaded. Keycloak is unconfigured and will deny all requests. Reason: {1}", new Object[]{configResolverClass, ex.getMessage()});
deploymentContext = new AdapterDeploymentContext(new KeycloakDeployment());
}
if (definedconfigResolver != null) {
deploymentContext = new AdapterDeploymentContext(definedconfigResolver);
log.log(Level.INFO, "Using {0} to resolve Keycloak configuration on a per-request basis.", definedconfigResolver.getClass());
} else {
String fp = filterConfig.getInitParameter("keycloak.config.file");
InputStream is = null;
if (fp != null) {
String configResolverClass = filterConfig.getInitParameter(CONFIG_RESOLVER_PARAM);
if (configResolverClass != null) {
try {
is = new FileInputStream(fp);
} catch (FileNotFoundException e) {
throw new RuntimeException(e);
KeycloakConfigResolver configResolver = (KeycloakConfigResolver) getClass().getClassLoader().loadClass(configResolverClass).newInstance();
deploymentContext = new AdapterDeploymentContext(configResolver);
log.log(Level.INFO, "Using {0} to resolve Keycloak configuration on a per-request basis.", configResolverClass);
} catch (Exception ex) {
log.log(Level.FINE, "The specified resolver {0} could NOT be loaded. Keycloak is unconfigured and will deny all requests. Reason: {1}", new Object[]{configResolverClass, ex.getMessage()});
deploymentContext = new AdapterDeploymentContext(new KeycloakDeployment());
}
} else {
String path = "/WEB-INF/keycloak.json";
String pathParam = filterConfig.getInitParameter("keycloak.config.path");
if (pathParam != null) path = pathParam;
is = filterConfig.getServletContext().getResourceAsStream(path);
String fp = filterConfig.getInitParameter(CONFIG_FILE_PARAM);
InputStream is = null;
if (fp != null) {
try {
is = new FileInputStream(fp);
} catch (FileNotFoundException e) {
throw new RuntimeException(e);
}
} else {
String path = "/WEB-INF/keycloak.json";
String pathParam = filterConfig.getInitParameter(CONFIG_PATH_PARAM);
if (pathParam != null) path = pathParam;
is = filterConfig.getServletContext().getResourceAsStream(path);
}
KeycloakDeployment kd = createKeycloakDeploymentFrom(is);
deploymentContext = new AdapterDeploymentContext(kd);
log.fine("Keycloak is using a per-deployment configuration.");
}
KeycloakDeployment kd = createKeycloakDeploymentFrom(is);
deploymentContext = new AdapterDeploymentContext(kd);
log.fine("Keycloak is using a per-deployment configuration.");
}
filterConfig.getServletContext().setAttribute(AdapterDeploymentContext.class.getName(), deploymentContext);
nodesRegistrationManagement = new NodesRegistrationManagement();
}
private KeycloakDeployment createKeycloakDeploymentFrom(InputStream is) {
if (is == null) {
log.fine("No adapter configuration. Keycloak is unconfigured and will deny all requests.");
return new KeycloakDeployment();
}
return KeycloakDeploymentBuilder.build(is);
}
@Override
public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {
log.fine("Keycloak OIDC Filter");
//System.err.println("Keycloak OIDC Filter: " + ((HttpServletRequest)req).getRequestURL().toString());
HttpServletRequest request = (HttpServletRequest) req;
HttpServletResponse response = (HttpServletResponse) res;
@ -201,7 +225,7 @@ public class KeycloakOIDCFilter implements Filter {
*
* @param request the request to check
* @return {@code true} if the request should not be handled,
* {@code false} otherwise.
* {@code false} otherwise.
*/
private boolean shouldSkip(HttpServletRequest request) {