src/main/java/org/keycloak/protocol/cas/utils/RedirectUtils.java

@@ -1,6 +1,24 @@
/*
 * Copyright 2016 Red Hat, Inc. and/or its affiliates
 * and other contributors as indicated by the @author tags.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.keycloak.protocol.oidc.utils;

import org.jboss.logging.Logger;
import org.keycloak.common.util.UriUtils;
import org.keycloak.models.ClientModel;
import org.keycloak.models.Constants;
import org.keycloak.models.RealmModel;
@@ -52,20 +70,15 @@

    private static String verifyRedirectUri(UriInfo uriInfo, String rootUrl, String redirectUri, RealmModel realm, Set<String> validRedirects) {
        if (redirectUri == null) {
            if (validRedirects.size() != 1) return null;
            String validRedirect = validRedirects.iterator().next();
            int idx = validRedirect.indexOf("/*");
            if (idx > -1) {
                validRedirect = validRedirect.substring(0, idx);
            }
            redirectUri = validRedirect;
            logger.debug("No Redirect URI parameter specified");
            return null;
        } else if (validRedirects.isEmpty()) {
            logger.debug("No Redirect URIs supplied");
            redirectUri = null;
        } else {
            redirectUri = lowerCaseHostname(redirectUri);

            String r = redirectUri.indexOf('?') != -1 ? redirectUri.substring(0, redirectUri.indexOf('?')) : redirectUri;
            String r = redirectUri;
            Set<String> resolveValidRedirects = resolveValidRedirects(uriInfo, rootUrl, validRedirects);

            boolean valid = matchesRedirects(resolveValidRedirects, r);
@@ -108,29 +121,28 @@
    }

    private static String relativeToAbsoluteURI(UriInfo uriInfo, String rootUrl, String relative) {
        if (rootUrl == null) {
            URI baseUri = uriInfo.getBaseUri();
            String uri = baseUri.getScheme() + "://" + baseUri.getHost();
            if (baseUri.getPort() != -1) {
                uri += ":" + baseUri.getPort();
            }
            rootUrl = uri;
        if (rootUrl == null || rootUrl.isEmpty()) {
            rootUrl = UriUtils.getOrigin(uriInfo.getBaseUri());
        }
        relative = rootUrl + relative;
        return relative;
        StringBuilder sb = new StringBuilder();
        sb.append(rootUrl);
        sb.append(relative);
        return sb.toString();
    }

    private static boolean matchesRedirects(Set<String> validRedirects, String redirect) {
        for (String validRedirect : validRedirects) {
            if (validRedirect.endsWith("*")) {
            if (validRedirect.endsWith("*") && !validRedirect.contains("?")) {
                // strip off the query component - we don't check them when wildcards are effective
                String r = redirect.contains("?") ? redirect.substring(0, redirect.indexOf("?")) : redirect;
                // strip off *
                int length = validRedirect.length() - 1;
                validRedirect = validRedirect.substring(0, length);
                if (redirect.startsWith(validRedirect)) return true;
                if (r.startsWith(validRedirect)) return true;
                // strip off trailing '/'
                if (length - 1 > 0 && validRedirect.charAt(length - 1) == '/') length--;
                validRedirect = validRedirect.substring(0, length);
                if (validRedirect.equals(redirect)) return true;
                if (validRedirect.equals(r)) return true;
            } else if (validRedirect.equals(redirect)) return true;
        }
        return false;