Move mms related code from opt/telephony to base/telephony.
In an effort to remove it from telephony-common as that will not be
accessible to other modules, and some of them need mms code like
MmsService, TelephonyProvider, Bluetooth.
Test: basic sanity
Bug: 140763963
Merged-in: I03eda5a5dbd003659a90e2b9f6be9d4c2b767add
Change-Id: I03eda5a5dbd003659a90e2b9f6be9d4c2b767add
(cherry picked from commit fda8bc058c24c70a2800454f945b9528c5b87699)
diff --git a/telephony/java/com/google/android/mms/pdu/QuotedPrintable.java b/telephony/java/com/google/android/mms/pdu/QuotedPrintable.java
new file mode 100644
index 0000000..9d6535c
--- /dev/null
+++ b/telephony/java/com/google/android/mms/pdu/QuotedPrintable.java
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2007 Esmertec AG.
+ * Copyright (C) 2007 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 com.google.android.mms.pdu;
+
+import dalvik.annotation.compat.UnsupportedAppUsage;
+
+import java.io.ByteArrayOutputStream;
+
+public class QuotedPrintable {
+ private static byte ESCAPE_CHAR = '=';
+
+ /**
+ * Decodes an array quoted-printable characters into an array of original bytes.
+ * Escaped characters are converted back to their original representation.
+ *
+ * <p>
+ * This function implements a subset of
+ * quoted-printable encoding specification (rule #1 and rule #2)
+ * as defined in RFC 1521.
+ * </p>
+ *
+ * @param bytes array of quoted-printable characters
+ * @return array of original bytes,
+ * null if quoted-printable decoding is unsuccessful.
+ */
+ @UnsupportedAppUsage
+ public static final byte[] decodeQuotedPrintable(byte[] bytes) {
+ if (bytes == null) {
+ return null;
+ }
+ ByteArrayOutputStream buffer = new ByteArrayOutputStream();
+ for (int i = 0; i < bytes.length; i++) {
+ int b = bytes[i];
+ if (b == ESCAPE_CHAR) {
+ try {
+ if('\r' == (char)bytes[i + 1] &&
+ '\n' == (char)bytes[i + 2]) {
+ i += 2;
+ continue;
+ }
+ int u = Character.digit((char) bytes[++i], 16);
+ int l = Character.digit((char) bytes[++i], 16);
+ if (u == -1 || l == -1) {
+ return null;
+ }
+ buffer.write((char) ((u << 4) + l));
+ } catch (ArrayIndexOutOfBoundsException e) {
+ return null;
+ }
+ } else {
+ buffer.write(b);
+ }
+ }
+ return buffer.toByteArray();
+ }
+}