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Core module of the project. It include all the FindBugs detectors. The resulting jar is the published plugin.

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/**
 * Find Security Bugs
 * Copyright (c) 2013, Philippe Arteau, All rights reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3.0 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library.
 */
package com.h3xstream.findsecbugs.common;

import edu.umd.cs.findbugs.OpcodeStack;

public class StringTracer {

	public static boolean isConstantString(OpcodeStack.Item item) {
		return !isVariableString(item);
	}

    /**
     * @param item Stack item (parameter passed to the current function)
     * @return If the given string reference is not a constant
     */
    public static boolean isVariableString(OpcodeStack.Item item) {
        String value = (String) item.getConstant();
        return value == null;
    }

    /**
     * @param stack
     * @return If at least one parameters has a variable string.
     */
    public static boolean hasVariableString(OpcodeStack stack) {
        boolean hasStringParam = false;

        for(int i=0;i