aboutsummaryrefslogtreecommitdiffstats
path: root/src/org/openintents/openpgp/util/OpenPgpUtils.java
diff options
context:
space:
mode:
Diffstat (limited to 'src/org/openintents/openpgp/util/OpenPgpUtils.java')
-rw-r--r--src/org/openintents/openpgp/util/OpenPgpUtils.java76
1 files changed, 76 insertions, 0 deletions
diff --git a/src/org/openintents/openpgp/util/OpenPgpUtils.java b/src/org/openintents/openpgp/util/OpenPgpUtils.java
new file mode 100644
index 00000000..e24c937a
--- /dev/null
+++ b/src/org/openintents/openpgp/util/OpenPgpUtils.java
@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
+ *
+ * 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 org.openintents.openpgp.util;
+
+import java.util.List;
+import java.util.Locale;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.ResolveInfo;
+
+public class OpenPgpUtils {
+
+ public static final Pattern PGP_MESSAGE = Pattern.compile(
+ ".*?(-----BEGIN PGP MESSAGE-----.*?-----END PGP MESSAGE-----).*",
+ Pattern.DOTALL);
+
+ public static final Pattern PGP_SIGNED_MESSAGE = Pattern.compile(
+ ".*?(-----BEGIN PGP SIGNED MESSAGE-----.*?-----BEGIN PGP SIGNATURE-----.*?-----END PGP SIGNATURE-----).*",
+ Pattern.DOTALL);
+
+ public static final int PARSE_RESULT_NO_PGP = -1;
+ public static final int PARSE_RESULT_MESSAGE = 0;
+ public static final int PARSE_RESULT_SIGNED_MESSAGE = 1;
+
+ public static int parseMessage(String message) {
+ Matcher matcherSigned = PGP_SIGNED_MESSAGE.matcher(message);
+ Matcher matcherMessage = PGP_MESSAGE.matcher(message);
+
+ if (matcherMessage.matches()) {
+ return PARSE_RESULT_MESSAGE;
+ } else if (matcherSigned.matches()) {
+ return PARSE_RESULT_SIGNED_MESSAGE;
+ } else {
+ return PARSE_RESULT_NO_PGP;
+ }
+ }
+
+ public static boolean isAvailable(Context context) {
+ Intent intent = new Intent(OpenPgpApi.SERVICE_INTENT);
+ List<ResolveInfo> resInfo = context.getPackageManager().queryIntentServices(intent, 0);
+ if (!resInfo.isEmpty()) {
+ return true;
+ } else {
+ return false;
+ }
+ }
+
+ public static String convertKeyIdToHex(long keyId) {
+ return "0x" + convertKeyIdToHex32bit(keyId >> 32) + convertKeyIdToHex32bit(keyId);
+ }
+
+ private static String convertKeyIdToHex32bit(long keyId) {
+ String hexString = Long.toHexString(keyId & 0xffffffffL).toLowerCase(Locale.US);
+ while (hexString.length() < 8) {
+ hexString = "0" + hexString;
+ }
+ return hexString;
+ }
+}