undefect. CWE-407 — 63 sites patched across 27 ecosystems

Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com

Patches, unit tests, benchmarks, whitepaper, and outreach briefs.
Public domain — no copyright claimed. Use freely.

make/langtools/tools/propertiesparser/parser/MessageLine.java

@@ -0,0 +1,106 @@
+/*
+ * Copyright (c) 2014, 2025, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code 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 General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package propertiesparser.parser;
+
+import java.util.List;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * A line of text within the message file.
+ * The lines form a doubly linked list for simple navigation.
+ */
+public class MessageLine {
+
+    static final Pattern emptyOrCommentPattern = Pattern.compile("( *#.*)?");
+    static final Pattern typePattern = Pattern.compile("[-\\\\'A-Z\\.a-z ]+( \\([-A-Za-z 0-9]+\\))?");
+    static final Pattern infoPattern = Pattern.compile(String.format("# ([0-9]+: %s, )*[0-9]+: %s",
+            typePattern.pattern(), typePattern.pattern()));
+    static final Pattern lintPattern = Pattern.compile("# lint: ([a-z\\-]+)");
+    static final Pattern diagnosticFlagsPattern = Pattern.compile("# flags: ([a-z\\-]+(, ([a-z\\-]+))*)");
+
+    public String text;
+    MessageLine prev;
+    MessageLine next;
+
+    MessageLine(String text) {
+        this.text = text;
+    }
+
+    public boolean isEmptyOrComment() {
+        return emptyOrCommentPattern.matcher(text).matches();
+    }
+
+    public boolean isInfo() {
+        return infoPattern.matcher(text).matches();
+    }
+
+    public boolean isLint() {
+        return lintPattern.matcher(text).matches();
+    }
+
+    public String lintCategory() {
+        Matcher matcher = lintPattern.matcher(text);
+        if (matcher.matches()) {
+            return matcher.group(1);
+        } else {
+            return null;
+        }
+    }
+
+    public boolean isDiagnosticFlags() {
+        return diagnosticFlagsPattern.matcher(text).matches();
+    }
+
+    public String[] diagnosticFlags() {
+        Matcher matcher = diagnosticFlagsPattern.matcher(text);
+        if (matcher.matches()) {
+            return matcher.group(1).split(", ", -1);
+        } else {
+            return null;
+        }
+    }
+
+    boolean hasContinuation() {
+        return (next != null) && text.endsWith("\\");
+    }
+
+    MessageLine append(String text) {
+        MessageLine l = new MessageLine(text);
+        append(l);
+        return l;
+    }
+
+    void append(MessageLine l) {
+        assert l.prev == null && l.next == null;
+        l.prev = this;
+        l.next = next;
+        if (next != null) {
+            next.prev = l;
+        }
+        next = l;
+    }
+}