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https://github.com/GravitLauncher/Launcher
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Фикс чита на основе глобальных переменных часть 2
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1 changed files with 11 additions and 52 deletions
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@ -7,68 +7,27 @@
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import java.util.regex.Pattern;
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public class EnvHelper {
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private static final boolean TST;
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private static final boolean HASXW;
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public static final String[] toTest;
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public static final Pattern[] test;
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static {
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toTest = new String[] { "_JAVA_OPTIONS", "_JAVA_OPTS", "JAVA_OPTS", "JAVA_OPTIONS" };
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test = new Pattern[] { Pattern.compile("-xm.*\\d+[KMG]") };
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TST = check0();
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HASXW = check1();
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}
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public static void addEnv(ProcessBuilder builder) {
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if (hasOptsEnv()) {
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Map<String, String> repl = new HashMap<>();
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for (String str : toTest) {
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repl.put(str, "");
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repl.put(str.toLowerCase(Locale.US), "");
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}
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JVMHelper.appendVars(builder, repl);
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Map<String, String> repl = builder.environment();
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for (String str : toTest) {
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repl.put(str, "");
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repl.put(str.toLowerCase(Locale.US), "");
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}
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}
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private static boolean check0() {
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for (String test : toTest)
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if (System.getProperty(test) != null)
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return true;
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return false;
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}
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/**
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* Вынужденное решение ибо тест на наличие -Xm* этакой нужен.
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*/
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private static boolean check1() {
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if (hasOptsEnv())
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for (String testStr : toTest)
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if (System.getenv(testStr) != null) {
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String str = System.getenv(testStr).toLowerCase(Locale.US);
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StringTokenizer st = new StringTokenizer(str);
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while (st.hasMoreTokens())
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if (CommonHelper.multiMatches(test, st.nextToken()))
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return true;
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}
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return false;
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}
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public static void checkDangerousParametrs() {
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if (hasOptsEnv())
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for (String t : toTest)
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if (System.getenv(t) != null) {
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String env = System.getenv(t).toLowerCase(Locale.US);
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if (env.contains("-cp") || env.contains("-classpath") || env.contains("-javaagent")
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|| env.contains("-agentpath") || env.contains("-agentlib"))
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throw new SecurityException("JavaAgent in global optings not allow");
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}
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}
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public static boolean hasOptsEnv() {
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return TST;
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}
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public static boolean hasWarnPreDef() {
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return HASXW;
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for (String t : toTest)
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if (System.getenv(t) != null) {
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String env = System.getenv(t).toLowerCase(Locale.US);
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if (env.contains("-cp") || env.contains("-classpath") || env.contains("-javaagent")
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|| env.contains("-agentpath") || env.contains("-agentlib"))
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throw new SecurityException("JavaAgent in global optings not allow");
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}
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}
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}
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