mirror of https://github.com/octoleo/plantuml.git
93 lines
2.9 KiB
Java
93 lines
2.9 KiB
Java
/* ========================================================================
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* PlantUML : a free UML diagram generator
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* ========================================================================
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*
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* (C) Copyright 2009-2024, Arnaud Roques
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*
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* Project Info: https://plantuml.com
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*
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* If you like this project or if you find it useful, you can support us at:
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*
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* https://plantuml.com/patreon (only 1$ per month!)
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* https://plantuml.com/paypal
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*
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* This file is part of PlantUML.
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*
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* PlantUML is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* PlantUML distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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* License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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*
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*
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* Original Author: Arnaud Roques
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*
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*/
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package net.sourceforge.plantuml.tim.stdlib;
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import java.util.List;
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import java.util.Map;
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import java.util.Set;
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import net.sourceforge.plantuml.security.SecurityUtils;
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import net.sourceforge.plantuml.text.StringLocated;
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import net.sourceforge.plantuml.tim.EaterException;
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import net.sourceforge.plantuml.tim.TContext;
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import net.sourceforge.plantuml.tim.TFunctionSignature;
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import net.sourceforge.plantuml.tim.TMemory;
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import net.sourceforge.plantuml.tim.expression.TValue;
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public class Getenv extends SimpleReturnFunction {
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public TFunctionSignature getSignature() {
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return new TFunctionSignature("%getenv", 1);
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}
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@Override
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public boolean canCover(int nbArg, Set<String> namedArgument) {
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return nbArg == 1;
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}
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@Override
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public TValue executeReturnFunction(TContext context, TMemory memory, StringLocated location, List<TValue> values,
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Map<String, TValue> named) throws EaterException {
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// ::comment when __CORE__
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final String value = getenv(values.get(0).toString());
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if (value == null)
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return TValue.fromString("");
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return TValue.fromString(value);
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// ::done
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// ::uncomment when __CORE__
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// return TValue.fromString("");
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// ::done
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}
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// ::comment when __CORE__
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private String getenv(String name) {
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// Check, if the script requests secret information.
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// A plantuml server should have an own SecurityManager to
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// avoid access to properties and environment variables, but we should
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// also stop here in other deployments.
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if (SecurityUtils.getSecurityProfile().canWeReadThisEnvironmentVariable(name) == false)
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return null;
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final String env = System.getProperty(name);
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if (env != null)
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return env;
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return System.getenv(name);
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}
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// ::done
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}
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