Add commandline tool to find unsalted password hashes

dspace-api/src/main/java/org/dspace/eperson/Groomer.java

@@ -0,0 +1,64 @@
+
+package org.dspace.eperson;
+
+import java.sql.SQLException;
+import org.apache.commons.cli.*;
+import org.dspace.core.Context;
+import org.dspace.storage.rdbms.DatabaseManager;
+import org.dspace.storage.rdbms.TableRow;
+import org.dspace.storage.rdbms.TableRowIterator;
+
+/**
+ * Tools for manipulating EPersons and Groups.
+ *
+ * @author mwood
+ */
+public class Groomer
+{
+    /**
+     * Command line tool for "grooming" the EPerson collection.
+     */
+    static public void main(String[] argv)
+            throws SQLException
+    {
+        final String USAGE = "EPerson -verb [option...]";
+
+        OptionGroup verbs = new OptionGroup();
+        verbs.setRequired(true);
+        verbs.addOption(new Option("h", "help", false, "explain this tool"));
+        verbs.addOption(new Option("u", "unsalted", false, "list accounts with unsalted password hashes"));
+
+        Options options = new Options();
+        options.addOptionGroup(verbs);
+
+        PosixParser parser = new PosixParser();
+        CommandLine command = null;
+        try {
+            command = parser.parse(options, argv);
+        } catch (ParseException ex) {
+            System.err.println(ex.getMessage());
+            if (! (ex instanceof MissingOptionException))
+                new HelpFormatter().printHelp(USAGE, options);
+            System.exit(1);
+        }
+
+         // Help the user
+        if (command.hasOption('h') || command.hasOption('?'))
+        {
+            new HelpFormatter().printHelp(USAGE, options);
+        }
+        // Scan for unsalted hashes
+        else if (command.hasOption('u'))
+        {
+            Context myContext = new Context();
+            final TableRowIterator tri = DatabaseManager.query(myContext,
+                    "SELECT email FROM EPerson WHERE password IS NOT NULL AND digest_algorithm IS NULL");
+            for (TableRow row = tri.next(); tri.hasNext(); row = tri.next())
+                System.out.println(row.getStringColumn("email"));
+            myContext.abort(); // No changes to commit
+        }
+        // Should not happen:  verb option defined but no code!
+        else
+            System.err.println("Unimplemented verb:  " + verbs.getSelected());
+    }
+}