1 files changed, 103 insertions, 0 deletions
diff --git a/keystore/java/android/security/Keystore.java b/keystore/java/android/security/Keystore.java
new file mode 100644
index 0000000..3f83473
--- /dev/null
+++ b/keystore/java/android/security/Keystore.java
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.security;
+
+/**
+ * The Keystore class provides the functions to list the certs/keys in keystore.
+ * {@hide}
+ */
+public abstract class Keystore {
+    private static final String TAG = "Keystore";
+    private static final String[] NOTFOUND = new String[0];
+
+    /**
+     */
+    public static Keystore getInstance() {
+        return new FileKeystore();
+    }
+
+    /**
+     */
+    public abstract String getUserkey(String key);
+
+    /**
+     */
+    public abstract String getCertificate(String key);
+
+    /**
+     */
+    public abstract String[] getAllCertificateKeys();
+
+    /**
+     */
+    public abstract String[] getAllUserkeyKeys();
+
+    private static class FileKeystore extends Keystore {
+        private static final String SERVICE_NAME = "keystore";
+        private static final String LIST_CERTIFICATES = "listcerts";
+        private static final String LIST_USERKEYS = "listuserkeys";
+        private static final String PATH = "/data/misc/keystore/";
+        private static final String USERKEY_PATH = PATH + "userkeys/";
+        private static final String CERT_PATH = PATH + "certs/";
+        private static final ServiceCommand mServiceCommand =
+                new ServiceCommand(SERVICE_NAME);
+
+        @Override
+        public String getUserkey(String key) {
+            return USERKEY_PATH + key;
+        }
+
+        @Override
+        public String getCertificate(String key) {
+            return CERT_PATH + key;
+        }
+
+        /**
+         * Returns the array of the certificate names in keystore if successful.
+         * Or return an empty array if error.
+         *
+         * @return array of the certificates
+         */
+        @Override
+        public String[] getAllCertificateKeys() {
+            try {
+                String result = mServiceCommand.execute(LIST_CERTIFICATES);
+                if (result != null) return result.split("\\s+");
+                return NOTFOUND;
+            } catch (NumberFormatException ex) {
+                return NOTFOUND;
+            }
+        }
+
+        /**
+         * Returns the array of the names of private keys in keystore if successful.
+         * Or return an empty array if errors.
+         *
+         * @return array of the user keys
+         */
+        @Override
+        public String[] getAllUserkeyKeys() {
+            try {
+                String result = mServiceCommand.execute(LIST_USERKEYS);
+                if (result != null) return result.split("\\s+");
+                return NOTFOUND;
+            } catch (NumberFormatException ex) {
+                return NOTFOUND;
+            }
+        }
+    }
+}