rename MailboxTree -> MailTree

[org.ibex.mail.git] / src / org / ibex / mail / MailTree.java

diff --git a/src/org/ibex/mail/MailTree.java b/src/org/ibex/mail/MailTree.java
new file mode 100644 (file)
index 0000000..4a6a587
--- /dev/null
+++ b/src/org/ibex/mail/MailTree.java
@@ -0,0 +1,59 @@
+// Copyright 2007 the Contributors, as shown in the revision logs.
+// Licensed under the Apache Public Source License 2.0 ("the License").
+// You may not use this file except in compliance with the License.
+
+package org.ibex.mail;
+import org.ibex.mail.*;
+import org.ibex.util.*;
+import org.ibex.mail.*;
+import org.ibex.js.*;
+import java.io.*;
+import java.net.*;
+import java.util.*;
+import java.text.*;
+
+/** a node on the "mailbox tree" */
+public interface MailTree {
+
+    public MailTree     slash(String name, boolean create);
+    public String[]     children();
+    public void         rmdir(String subdir);
+    public void         rename(String subdir, MailTree newParent, String newName);
+    public Mailbox      getMailbox();
+
+    public static class Wrapper implements MailTree {
+        protected MailTree mt;
+        public Wrapper(MailTree mt) { this.mt = mt; }
+        public MailTree     slash(String name, boolean create) { return mt.slash(name, create); }
+        public String[]     children() { return mt.children(); }
+        public void         rmdir(String subdir) { mt.rmdir(subdir); }
+        public void         rename(String subdir, MailTree newParent, String newName) { mt.rename(subdir, newParent, newName); }
+        public Mailbox      getMailbox() { return mt.getMailbox(); }
+    }
+
+    /** applies an Acl to a directory; requires directions on how to Acl-ize subdirectories */
+    public static abstract class AclWrapper extends Wrapper {
+        protected Acl.Entry acl;
+        public AclWrapper(MailTree mt, Acl.Entry acl) { super(mt); this.acl = acl; }
+        public Mailbox      getMailbox() { return new Mailbox.AclWrapper(mt.getMailbox(), acl); }
+        public void rmdir(String subdir) {
+            if (!acl.delete) throw new Acl.PermissionDenied();
+            super.rmdir(subdir);
+        }
+        public void rename(String subdir, MailTree newParent, String newName) {
+            if (!acl.delete) throw new Acl.PermissionDenied();
+            super.rename(subdir, newParent, newName);
+        }
+        public abstract MailTree slash(String name, boolean create);
+    }
+
+    /** applies the Acl recursively to the entire subtree */
+    public static class RecursiveAclWrapper extends AclWrapper {
+        public RecursiveAclWrapper(MailTree mt, Acl.Entry acl) { super(mt, acl); }
+        public MailTree slash(String name, boolean create) {
+            if (!acl.list) throw new Acl.PermissionDenied();
+            if (!acl.mkdirs) create = false;
+            return new RecursiveAclWrapper(super.slash(name, create), acl);
+        }
+    }
+}