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[HWKMETRICS-478] Make a separate admin filter that does not get packa…
…ged in the container distribution.
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Stefan Negrea
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Sep 30, 2016
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api/metrics-api-jaxrs/src/main/java/org/hawkular/metrics/api/jaxrs/filter/AdminFilter.java
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| /* | ||
| * Copyright 2014-2016 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. | ||
| */ | ||
|
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| package org.hawkular.metrics.api.jaxrs.filter; | ||
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| import static javax.ws.rs.core.MediaType.APPLICATION_JSON_TYPE; | ||
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| import java.io.IOException; | ||
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| import javax.annotation.Priority; | ||
| import javax.inject.Inject; | ||
| import javax.ws.rs.container.ContainerRequestContext; | ||
| import javax.ws.rs.container.ContainerRequestFilter; | ||
| import javax.ws.rs.container.PreMatching; | ||
| import javax.ws.rs.core.Response; | ||
| import javax.ws.rs.core.Response.Status; | ||
| import javax.ws.rs.core.UriInfo; | ||
| import javax.ws.rs.ext.Provider; | ||
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| import org.hawkular.metrics.model.ApiError; | ||
| import org.hawkular.metrics.sysconfig.ConfigurationService; | ||
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| import com.google.common.base.Charsets; | ||
| import com.google.common.hash.Hashing; | ||
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| /** | ||
| * @author Stefan Negrea | ||
| */ | ||
| @Provider | ||
| @PreMatching | ||
| @Priority(20) | ||
| public class AdminFilter implements ContainerRequestFilter { | ||
| public static final String TENANT_HEADER_NAME = "Hawkular-Tenant"; | ||
| public static final String ADMIN_TOKEN_HEADER_NAME = "Hawkular-Admin-Token"; | ||
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| private static final String MISSING_TENANT_MSG; | ||
| private static final String WRONG_ADMIN_TOKEN_MSG; | ||
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| static { | ||
| MISSING_TENANT_MSG = "Tenant is not specified. Use '" | ||
| + TENANT_HEADER_NAME | ||
| + "' header."; | ||
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| WRONG_ADMIN_TOKEN_MSG = "Admin token is wrong or not specified."; | ||
| } | ||
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| @Inject | ||
| private ConfigurationService configurationService; | ||
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| private String savedAdminToken; | ||
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| @Override | ||
| public void filter(ContainerRequestContext requestContext) throws IOException { | ||
| UriInfo uriInfo = requestContext.getUriInfo(); | ||
| String path = uriInfo.getPath(); | ||
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| if (path.startsWith("/tenants")) { | ||
| String tenant = requestContext.getHeaders().getFirst(TENANT_HEADER_NAME); | ||
| if (tenant == null || tenant.trim().isEmpty()) { | ||
| // Fail on missing tenant info | ||
| Response response = Response.status(Status.BAD_REQUEST) | ||
| .type(APPLICATION_JSON_TYPE) | ||
| .entity(new ApiError(MISSING_TENANT_MSG)) | ||
| .build(); | ||
| requestContext.abortWith(response); | ||
| return; | ||
| } | ||
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| String adminToken = requestContext.getHeaders().getFirst(ADMIN_TOKEN_HEADER_NAME); | ||
| if (adminToken != null && !adminToken.trim().isEmpty() && validAdminToken(adminToken)) { | ||
| return; | ||
| } else { | ||
| // Fail on bad admin token | ||
| Response response = Response.status(Status.BAD_REQUEST) | ||
| .type(APPLICATION_JSON_TYPE) | ||
| .entity(new ApiError(WRONG_ADMIN_TOKEN_MSG)) | ||
| .build(); | ||
| requestContext.abortWith(response); | ||
| return; | ||
| } | ||
| } | ||
| } | ||
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| private boolean validAdminToken(String adminToken) { | ||
| if (savedAdminToken == null) { | ||
| savedAdminToken = configurationService.load("org.hawkular.metrics", "admin.token").toBlocking() | ||
| .firstOrDefault(""); | ||
| } | ||
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| adminToken = Hashing.sha256().newHasher().putString(adminToken, Charsets.UTF_8).hash().toString(); | ||
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| if (adminToken.equals(savedAdminToken)) { | ||
| return true; | ||
| } | ||
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| return false; | ||
| } | ||
| } |
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