jmms.protocols.scim.comm.crud.ScimUpdateInterceptor Maven / Gradle / Ivy

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/*
 *  Copyright 2018 the original author or authors.
 *
 *  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 jmms.protocols.scim.comm.crud;

import jmms.core.model.MetaField;
import jmms.protocols.scim.ScimConsts;
import jmms.protocols.scim.v2.Scim2Consts;
import jmms.protocols.scim.ScimMapping;
import jmms.protocols.scim.ScimModel;
import jmms.protocols.scim.v2.model.Scim2Patch;
import leap.core.annotation.Inject;
import leap.core.validation.BeanValidator;
import leap.lang.Strings;
import leap.lang.convert.Converts;
import leap.web.api.orm.ModelExecutionContext;
import leap.web.api.orm.ModelUpdateInterceptor;
import leap.web.exception.BadRequestException;

import java.util.List;
import java.util.Map;
import java.util.Set;

public class ScimUpdateInterceptor extends ScimCrudInterceptor implements ModelUpdateInterceptor {

    protected @Inject BeanValidator beanValidator;

    @Override
    public boolean handleUpdatePropertyNotFound(ModelExecutionContext context, String name, Object value, Set removes) {
        if(isScimOperation(context)) {
            removes.add(name);
            return true;
        }
        return false;
    }

    @Override
    public boolean handleUpdatePropertyReadonly(ModelExecutionContext context, String name, Object value, Set removes) {
        if(isScimOperation(context)) {
            removes.add(name);
            return true;
        }
        return false;
    }

    @Override
    public boolean processUpdateProperties(ModelExecutionContext context, Object id, Map o) {
        ScimModel model = getScimModel(context);
        if(null != model) {
            if(model.getMajorVersion() < 2) {
                processUpdatePropertiesV1(context, id, o, model);
            }else {
                processUpdatePropertiesV2(context, id, o, model);
            }
        }
        return false;
    }

    protected void processUpdatePropertiesV1(ModelExecutionContext context, Object id, Map o, ScimModel model) {
        Object meta = o.get(ScimConsts.META);
        if(null != meta && meta instanceof Map) {
            Object attributes = ((Map)meta).get(ScimConsts.ATTRIBUTES);
            if(null != attributes && attributes instanceof List) {
                for(Object a : ((List)attributes)) {
                    String attribute = a.toString();
                    if(!o.containsKey(attribute)) {
                        ScimMapping mapping = model.resolveMapping(attribute);
                        if(null != mapping) {
                            o.put(mapping.getFieldName(), null);
                        }else {
                            o.put(attribute, null);
                        }
                    }
                }
            }
        }

        o.remove(ScimConsts.META);
        o.remove(ScimConsts.SCHEMAS);

        model.mappingIn(o);
    }

    protected void processUpdatePropertiesV2(ModelExecutionContext context, Object id, Map o, ScimModel model) {
        if(isJsonPatch(o)) {
            Scim2Patch patch = Converts.convert(o, Scim2Patch.class);
            for(Scim2Patch.Operation operation : patch.getOperations()) {
                if(null == operation.op) {
                    throw new BadRequestException("Operation's op is required");
                }
                if(Strings.isEmpty(operation.path)) {
                    throw new BadRequestException("Operation's path is required");
                }
                if(operation.op == Scim2Patch.Op.ADD) {
                    throw new BadRequestException("The 'add' op not supported");
                }

                String property;

                MetaField field = model.getEntity().getField(operation.path);
                if(null != field) {
                    property = field.getName();
                }else {
                    ScimMapping mapping = model.resolveMapping(operation.path);
                    if(null == mapping) {
                        throw new BadRequestException("Invalid operation path '" + operation.path + "'");
                    }
                    property = mapping.getFieldName();
                }

                Object value = operation.op == Scim2Patch.Op.REMOVE ? null : operation.value;

                o.put(property, value);
            }

            o.remove(ScimConsts.SCHEMAS);
            o.remove(Scim2Consts.OPERATIONS);
        }else {
            //model.mappingIn(o);
            throw new BadRequestException("Invalid json patch body");
        }
    }

    protected boolean isJsonPatch(Map o) {
        Object schemas = o.get(ScimConsts.SCHEMAS);
        if(null != schemas && schemas instanceof List) {
            for(Object schema : ((List)schemas)){
                if(Scim2Consts.SCHEMA_PATCH_OP.equals(schema)) {
                    return true;
                }
            }
            return false;
        }

        Object operations = o.get(Scim2Consts.OPERATIONS);
        if(null != operations && operations instanceof List) {
            return true;
        }

        return false;
    }
}