1 files changed, 102 insertions, 0 deletions
diff --git a/src/com/android/car/messenger/impl/datamodels/util/MmsUtils.java b/src/com/android/car/messenger/impl/datamodels/util/MmsUtils.java
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+++ b/src/com/android/car/messenger/impl/datamodels/util/MmsUtils.java
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+/*
+ * Copyright (C) 2020 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.android.car.messenger.impl.datamodels.util;
+
+import static android.provider.BaseColumns._ID;
+import static android.provider.Telephony.BaseMmsColumns.CONTENT_TYPE;
+
+import android.content.Context;
+import android.database.Cursor;
+import android.net.Uri;
+import android.provider.Telephony;
+import android.provider.Telephony.Mms.Addr;
+import android.provider.Telephony.Mms.Part;
+import android.provider.Telephony.Sms;
+
+import androidx.annotation.NonNull;
+
+import java.text.MessageFormat;
+import java.time.Instant;
+
+/** MMS Utils for parsing MMS Telephony Content */
+class MmsUtils {
+
+    @NonNull public static final String FORMAT_CONTENT_MMS_PART = "content://mms/{0}/part";
+    @NonNull public static final String FORMAT_CONTENT_MMS_ADDR = "content://mms/{0}/addr";
+    @NonNull public static final String FORMAT_TYPE_AND_MSG_ID = "type={0} AND msg_id={1}";
+
+    /** MMS text messages come with extra characters and new lines that need to be removed */
+    @NonNull private static final String REPLACE_CHARS = "\r\n";
+
+    private MmsUtils() {}
+
+    @NonNull static final String MMS_CONTENT_TYPE = "application/vnd.wap.multipart.related";
+    private static final int ORIGINATOR_ADDRESS_TYPE = 137;
+
+    /** Returns true, if item on cursor position is an MMS message */
+    static Boolean isMms(@NonNull Cursor cursor) {
+        String contentType = cursor.getString(cursor.getColumnIndex(CONTENT_TYPE));
+        return MMS_CONTENT_TYPE.equals(contentType);
+    }
+
+    /**
+     * Returns the parsed result as {link @MmsSmsMessage}
+     *
+     * @throws IllegalArgumentException if desired columns are missing.
+     * @see CursorUtils#CONTENT_CONVERSATION_PROJECTION
+     */
+    @NonNull
+    static MmsSmsMessage parseMms(@NonNull Context context, @NonNull Cursor cursor) {
+        MmsSmsMessage message = new MmsSmsMessage();
+        message.mId = cursor.getString(cursor.getColumnIndex(_ID));
+        message.mThreadId = cursor.getInt(cursor.getColumnIndex(Sms.THREAD_ID));
+        message.mType = cursor.getInt(cursor.getColumnIndex(Telephony.Mms.MESSAGE_BOX));
+        message.mSubscriptionId = cursor.getInt(cursor.getColumnIndex(Sms.SUBSCRIPTION_ID));
+        message.mDate = Instant.ofEpochSecond(cursor.getLong(cursor.getColumnIndex(Sms.DATE)));
+        message.mRead = cursor.getInt(cursor.getColumnIndex(Sms.READ)) == 1;
+        message.mPhoneNumber = getOriginator(context, message.mId);
+        message.mBody = getMmsBody(context, message.mId);
+        return message;
+    }
+
+    private static String getMmsBody(@NonNull Context context, @NonNull String id) {
+        String uriStr = MessageFormat.format(FORMAT_CONTENT_MMS_PART, id);
+        Uri uriAddress = Uri.parse(uriStr);
+        Cursor cursor = CursorUtils.simpleQuery(context, uriAddress);
+        StringBuilder stringBuilder = new StringBuilder();
+        while (cursor != null && cursor.moveToNext()) {
+            stringBuilder.append(cursor.getString(cursor.getColumnIndex(Part.TEXT)));
+            stringBuilder.append(" ");
+        }
+        return stringBuilder.toString().replace(REPLACE_CHARS, "");
+    }
+
+    @NonNull
+    private static String getOriginator(@NonNull Context context, @NonNull String id) {
+        String selection =
+                MessageFormat.format(FORMAT_TYPE_AND_MSG_ID, ORIGINATOR_ADDRESS_TYPE, id);
+        String uriStr = MessageFormat.format(FORMAT_CONTENT_MMS_ADDR, id);
+        Cursor cursor = CursorUtils.simpleQueryWithSelection(context, Uri.parse(uriStr), selection);
+        String phoneNum = "";
+        if (cursor != null && cursor.moveToFirst()) {
+            cursor.moveToFirst();
+            phoneNum = cursor.getString(cursor.getColumnIndex(Addr.ADDRESS));
+            cursor.close();
+        }
+        return phoneNum;
+    }
+}