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    • com.github.tomakehurst.wiremock.extension.responsetemplating.helpers.SystemValueHelper Maven / Gradle / Ivy

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    /*
 * Copyright (C) 2011 Thomas Akehurst
 *
 * 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 com.github.tomakehurst.wiremock.extension.responsetemplating.helpers;

import com.github.jknack.handlebars.Options;
import com.github.tomakehurst.wiremock.extension.responsetemplating.SystemKeyAuthoriser;
import org.apache.commons.lang3.StringUtils;

import java.security.AccessControlException;
import java.util.regex.Pattern;

public class SystemValueHelper extends HandlebarsHelper {

    private final SystemKeyAuthoriser systemKeyAuthoriser;

    public SystemValueHelper(SystemKeyAuthoriser systemKeyAuthoriser) {
        this.systemKeyAuthoriser = systemKeyAuthoriser;
    }

    @Override
    public String apply(Object context, Options options) {
        String key = options.hash("key", "");
        String type = options.hash("type", "ENVIRONMENT");
        if (StringUtils.isEmpty(key)) {
            return this.handleError("The key cannot be empty");
        }
        if (!systemKeyAuthoriser.isPermitted(key)) {
            return this.handleError("Access to " + key + " is denied");
        }

        String rawValue = "";

        try {
            switch (type) {
                case "ENVIRONMENT":
                    rawValue = getSystemEnvironment(key);
                    break;
                case "PROPERTY":
                    rawValue = getSystemProperties(key);
                    break;
            }
            return rawValue;

        } catch (AccessControlException e) {
            return this.handleError("Access to " + key + " is denied");
        }
    }

    private String getSystemEnvironment(final String key) {
        return System.getenv(key);
    }

    private String getSystemProperties(final String key) {
        return System.getProperty(key);
    }
}
    
    
    
    

    




    
    
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