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/*-
* ============LICENSE_START=======================================================
* VID
* ================================================================================
* Copyright (C) 2017 - 2019 AT&T Intellectual Property. All rights reserved.
* Modifications Copyright (C) 2018 - 2019 Nokia. 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.vid.roles;
import static java.util.stream.Collectors.toMap;
import static org.apache.commons.collections4.CollectionUtils.emptyIfNull;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.function.Function;
import java.util.stream.Collectors;
import javax.servlet.http.HttpServletRequest;
import org.jetbrains.annotations.NotNull;
import org.onap.portalsdk.core.logging.logic.EELFLoggerDelegate;
import org.onap.portalsdk.core.web.support.UserUtils;
import org.onap.vid.aai.AaiResponse;
import org.onap.vid.aai.exceptions.RoleParsingException;
import org.onap.vid.category.CategoryParameterOptionRep;
import org.onap.vid.category.CategoryParametersResponse;
import org.onap.vid.model.CategoryParameter.Family;
import org.onap.vid.model.ModelConstants;
import org.onap.vid.model.Subscriber;
import org.onap.vid.model.SubscriberList;
import org.onap.vid.services.AaiService;
import org.onap.vid.services.CategoryParameterService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;
@Component
public class RoleProvider {
private static final EELFLoggerDelegate LOG = EELFLoggerDelegate.getLogger(RoleProvider.class);
static final String READ_PERMISSION_STRING = "read";
private final ObjectMapper om = new ObjectMapper();
private AaiService aaiService;
private Function<HttpServletRequest, Integer> getUserIdFunction;
private Function<HttpServletRequest, Map> getRolesFunction;
private final RoleValidatorFactory roleValidatorFactory;
private final CategoryParameterService categoryParameterService;
@Autowired
public RoleProvider(AaiService aaiService, RoleValidatorFactory roleValidatorFactory,
CategoryParameterService categoryParameterService) {
this.aaiService=aaiService;
this.roleValidatorFactory = roleValidatorFactory;
this.categoryParameterService = categoryParameterService;
getUserIdFunction = UserUtils::getUserId;
getRolesFunction = UserUtils::getRoles;
}
RoleProvider(AaiService aaiService, RoleValidatorFactory roleValidatorFactory,
Function<HttpServletRequest, Integer> getUserIdFunction, Function<HttpServletRequest, Map> getRolesFunction,
CategoryParameterService categoryParameterService) {
this.aaiService = aaiService;
this.roleValidatorFactory = roleValidatorFactory;
this.getRolesFunction = getRolesFunction;
this.getUserIdFunction = getUserIdFunction;
this.categoryParameterService = categoryParameterService;
}
public List<Role> getUserRoles(HttpServletRequest request) {
int userId= getUserIdFunction.apply(request);
String logPrefix = "Role Provider (" + userId + ") ==>";
LOG.debug(EELFLoggerDelegate.debugLogger, logPrefix + "Entering to get user role for user " + userId);
List<Role> roleList = new ArrayList<>();
Map roles = getRolesFunction.apply(request);
final Map<String, String> owningEntityMap = owningEntityNameToOwningEntityIdMapper();
for (Object role : roles.keySet()) {
org.onap.portalsdk.core.domain.Role sdkRol = (org.onap.portalsdk.core.domain.Role) roles.get(role);
LOG.debug(EELFLoggerDelegate.debugLogger, logPrefix + "Role " + sdkRol.getName() + " is being proccessed");
try {
if (sdkRol.getName().contains(READ_PERMISSION_STRING)) {
LOG.debug(EELFLoggerDelegate.debugLogger, logPrefix + " Role " + sdkRol.getName() + " contain " + READ_PERMISSION_STRING);
continue;
}
String[] roleParts = splitRole((sdkRol.getName()), logPrefix);
roleList.add(createRoleFromStringArr(roleParts, logPrefix, owningEntityMap));
String msg = String.format("%s User %s got permissions %s", logPrefix, userId, Arrays.toString(roleParts));
LOG.debug(EELFLoggerDelegate.debugLogger, msg);
} catch (Exception e) {
LOG.error(logPrefix + " Failed to parse permission");
}
}
return roleList;
}
public String[] splitRole(String roleAsString, String logPrefix) {
LOG.debug(EELFLoggerDelegate.debugLogger, logPrefix + "Spliting role = " + roleAsString + "With delimeter = " + ModelConstants.ROLE_DELIMITER);
return roleAsString.split(ModelConstants.ROLE_DELIMITER);
}
public boolean userPermissionIsReadOnly(List<Role> roles) {
return roles.isEmpty();
}
public boolean userPermissionIsReadLogs(List<Role> roles){
for(Role role: roles){
if ( role.getServiceType().equals("LOGS") && role.getTenant().equals("PERMITTED") ) {
return true;
}
}
return false;
}
private String replaceSubscriberNameToGlobalCustomerID(String subscriberName, String logPrefix) {
// SubscriberList should be cached by cacheProvider so by calling getFullSubscriberList() method we just gat it from cache
AaiResponse<SubscriberList> subscribersResponse = aaiService.getFullSubscriberList();
SubscriberList subscribers = subscribersResponse.getT();
try {
LOG.debug(EELFLoggerDelegate.debugLogger, logPrefix + "subscribers list size is " + subscribers.customer.size() + " with the values " + om.writeValueAsString(subscribers.customer));
} catch (JsonProcessingException e) {
// log subscriberNames without object mapper
LOG.debug(EELFLoggerDelegate.debugLogger, logPrefix + "subscribers list size is " + subscribers.customer.size()
+ " with the values " + subscribers.customer.stream().map(subscriber -> subscriber.subscriberName).collect(Collectors.joining(",")));
}
Optional<Subscriber> s = subscribers.customer.stream().filter(x -> x.subscriberName.equals(subscriberName)).findFirst();
//Fixing bug of logging "optional get" before isPresent
String replacement = s.isPresent() ? s.get().globalCustomerId : "";
LOG.debug(EELFLoggerDelegate.debugLogger, logPrefix + "Subscribername " + subscriberName + " changed to " + replacement);
return replacement;
}
public Role createRoleFromStringArr(String[] roleParts, String rolePrefix, Map<String, String> owningEntityMap) throws RoleParsingException {
String globalCustomerID = replaceSubscriberNameToGlobalCustomerID(roleParts[0], rolePrefix);
String owningEntityId = translateOwningEntityNameToOwningEntityId(roleParts[0], owningEntityMap);
try {
if (roleParts.length > 2) {
return new Role(EcompRole.READ, globalCustomerID, roleParts[1], roleParts[2], owningEntityId);
} else {
return new Role(EcompRole.READ, globalCustomerID, roleParts[1], null, owningEntityId);
}
} catch (ArrayIndexOutOfBoundsException e) {
if (roleParts.length > 0)
LOG.debug(EELFLoggerDelegate.debugLogger, "Could not parse role ", roleParts[0]);
else {
LOG.debug(EELFLoggerDelegate.debugLogger, "Got empty role, Could not parse it ");
}
throw new RoleParsingException();
}
}
// in case the owningEntity name is not found in the owningEntityMap - return the name
protected String translateOwningEntityNameToOwningEntityId(String owningEntityName, Map<String, String> owningEntityMap) {
return owningEntityMap.getOrDefault(owningEntityName, owningEntityName);
}
@NotNull
protected Map<String, String> owningEntityNameToOwningEntityIdMapper() {
CategoryParametersResponse categoryParametersResponse = categoryParameterService.getCategoryParameters(Family.PARAMETER_STANDARDIZATION);
Map<String, List<CategoryParameterOptionRep>> categoryMap = categoryParametersResponse.getCategoryParameters();
List<CategoryParameterOptionRep> owningEntityList = categoryMap.get("owningEntity");
return emptyIfNull(owningEntityList).stream().collect(toMap(
CategoryParameterOptionRep::getName, CategoryParameterOptionRep::getId));
}
public RoleValidator getUserRolesValidator(HttpServletRequest request) {
return roleValidatorFactory.by(getUserRoles(request));
}
}
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