1 files changed, 115 insertions, 0 deletions
diff --git a/sdnr/wt/oauth-provider/oauth-core/src/main/java/org/onap/ccsdk/features/sdnr/wt/oauthprovider/providers/KeycloakProviderService.java b/sdnr/wt/oauth-provider/oauth-core/src/main/java/org/onap/ccsdk/features/sdnr/wt/oauthprovider/providers/KeycloakProviderService.java
new file mode 100644
index 000000000..bdbf9286a
--- /dev/null
+++ b/sdnr/wt/oauth-provider/oauth-core/src/main/java/org/onap/ccsdk/features/sdnr/wt/oauthprovider/providers/KeycloakProviderService.java
@@ -0,0 +1,115 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP : ccsdk features
+ * ================================================================================
+ * Copyright (C) 2021 highstreet technologies GmbH Intellectual Property.
+ * All rights reserved.
+ * ================================================================================
+ * 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.
+ * ============LICENSE_END=========================================================
+ *
+ */
+package org.onap.ccsdk.features.sdnr.wt.oauthprovider.providers;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.JsonMappingException;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+import org.onap.ccsdk.features.sdnr.wt.oauthprovider.data.KeycloakUserTokenPayload;
+import org.onap.ccsdk.features.sdnr.wt.oauthprovider.data.OAuthProviderConfig;
+import org.onap.ccsdk.features.sdnr.wt.oauthprovider.data.UnableToConfigureOAuthService;
+import org.onap.ccsdk.features.sdnr.wt.oauthprovider.data.UserTokenPayload;
+
+public class KeycloakProviderService extends AuthService {
+
+    public static final String ID = "keycloak";
+    private Map<String, String> additionalTokenVerifierParams;
+
+    public KeycloakProviderService(OAuthProviderConfig config, String redirectUri, TokenCreator tokenCreator) throws UnableToConfigureOAuthService {
+        super(config, redirectUri, tokenCreator);
+        this.additionalTokenVerifierParams = new HashMap<>();
+        this.additionalTokenVerifierParams.put("grant_type", "authorization_code");
+    }
+
+    @Override
+    protected String getTokenVerifierUri() {
+        return String.format("/auth/realms/%s/protocol/openid-connect/token", urlEncode(this.config.getRealmName()));
+    }
+
+    @Override
+    protected String getLoginUrl(String callbackUrl) {
+        return String.format(
+                "%s/auth/realms/%s/protocol/openid-connect/auth?client_id=%s&response_type=code&scope=%s&redirect_uri=%s",
+                this.config.getUrl(), urlEncode(this.config.getRealmName()), urlEncode(this.config.getClientId()),
+                this.config.getScope(), urlEncode(callbackUrl));
+    }
+
+    @Override
+    protected String getLogoutUrl() {
+        return String.format("%s/auth/realms/%s/protocol/openid-connect/logout", this.config.getUrl(),
+                urlEncode(this.config.getRealmName()));
+    }
+
+    @Override
+    protected List<String> mapRoles(List<String> data) {
+        final Map<String, String> map = this.config.getRoleMapping();
+        List<String> filteredRoles =
+                data.stream().filter(role -> !role.equals("uma_authorization") && !role.equals("offline_access"))
+                        .map(r -> map.getOrDefault(r, r)).collect(Collectors.toList());
+        return filteredRoles;
+    }
+
+    @Override
+    protected ResponseType getResponseType() {
+        return ResponseType.CODE;
+    }
+
+    @Override
+    protected Map<String, String> getAdditionalTokenVerifierParams() {
+        return this.additionalTokenVerifierParams;
+
+    }
+
+    @Override
+    protected boolean doSeperateRolesRequest() {
+        return false;
+    }
+
+    @Override
+    protected UserTokenPayload mapAccessToken(String spayload) throws JsonMappingException, JsonProcessingException {
+        KeycloakUserTokenPayload payload = mapper.readValue(spayload, KeycloakUserTokenPayload.class);
+        UserTokenPayload data = new UserTokenPayload();
+        data.setIat(payload.getIat() * 1000L);
+        data.setExp(payload.getExp() * 1000L);
+        data.setFamilyName(payload.getFamilyName());
+        data.setGivenName(payload.getGivenName());
+        data.setProviderId(this.config.getId());
+        data.setPreferredUsername(payload.getPreferredUsername());
+        data.setRoles(this.mapRoles(payload.getRealmAccess().getRoles()));
+        return data;
+    }
+
+    @Override
+    protected UserTokenPayload requestUserRoles(String access_token, long issued_at, long expires_at) {
+        return null;
+    }
+
+    @Override
+    protected boolean verifyState(String state) {
+        return true;
+    }
+
+
+}