From 0ee4c0e33b183d74c17b5cf6ddb43b2c6f451be9 Mon Sep 17 00:00:00 2001
From: David Smith <davidas@google.com>
Date: Tue, 1 May 2018 14:54:46 -0700
Subject: [PATCH] RESTRICT AUTOMERGE: Messaging ignores file URIs shared via
 intent

Fixes b/37629504 by not creating attachments from file URIs shared via
intent. Sharing file URIs is disallowed by Android N and later and is no
longer supported for this app.

Test: manual using the Debug command added in this change
Change-Id: Iaecff745aca76381d387ab057ffa1f2024aebfcf
---
 .../conversationlist/ShareIntentActivity.java | 14 +++++++++++
 .../android/messaging/util/DebugUtils.java    | 23 +++++++++++++++++++
 2 files changed, 37 insertions(+)

diff --git a/src/com/android/messaging/ui/conversationlist/ShareIntentActivity.java b/src/com/android/messaging/ui/conversationlist/ShareIntentActivity.java
index ef7fcef..3b35205 100644
--- a/src/com/android/messaging/ui/conversationlist/ShareIntentActivity.java
+++ b/src/com/android/messaging/ui/conversationlist/ShareIntentActivity.java
@@ -34,6 +34,8 @@ import com.android.messaging.util.Assert;
 import com.android.messaging.util.ContentType;
 import com.android.messaging.util.LogUtil;
 import com.android.messaging.util.MediaMetadataRetrieverWrapper;
+import com.android.messaging.util.FileUtil;
+import com.android.messaging.util.UriUtil;
 
 import java.io.IOException;
 import java.util.ArrayList;
@@ -74,6 +76,12 @@ public class ShareIntentActivity extends BaseBugleActivity implements
         final String action = intent.getAction();
         if (Intent.ACTION_SEND.equals(action)) {
             final Uri contentUri = (Uri) intent.getParcelableExtra(Intent.EXTRA_STREAM);
+            if (UriUtil.isFileUri(contentUri)) {
+                LogUtil.i(
+                    LogUtil.BUGLE_TAG,
+                    "Ignoring attachment from file URI which are no longer supported.");
+                return;
+            }
             final String contentType = extractContentType(contentUri, intent.getType());
             if (LogUtil.isLoggable(LogUtil.BUGLE_TAG, LogUtil.DEBUG)) {
                 LogUtil.d(LogUtil.BUGLE_TAG, String.format(
@@ -111,6 +119,12 @@ public class ShareIntentActivity extends BaseBugleActivity implements
                 if (imageUris != null && imageUris.size() > 0) {
                     mDraftMessage = MessageData.createSharedMessage(null);
                     for (final Uri imageUri : imageUris) {
+                        if (UriUtil.isFileUri(imageUri)) {
+                            LogUtil.i(
+                                LogUtil.BUGLE_TAG,
+                                "Ignoring attachment from file URI which are no longer supported.");
+                            continue;
+                        }
                         final String actualContentType = extractContentType(imageUri, contentType);
                         addSharedImagePartToDraft(actualContentType, imageUri);
                     }
diff --git a/src/com/android/messaging/util/DebugUtils.java b/src/com/android/messaging/util/DebugUtils.java
index f2c1d65..5302d62 100644
--- a/src/com/android/messaging/util/DebugUtils.java
+++ b/src/com/android/messaging/util/DebugUtils.java
@@ -22,12 +22,15 @@ import android.app.FragmentManager;
 import android.app.FragmentTransaction;
 import android.content.Context;
 import android.content.DialogInterface;
+import android.content.Intent;
 import android.media.MediaPlayer;
+import android.net.Uri;
 import android.os.Environment;
 import android.telephony.SmsMessage;
 import android.text.TextUtils;
 import android.widget.ArrayAdapter;
 
+import com.android.messaging.Factory;
 import com.android.messaging.R;
 import com.android.messaging.datamodel.SyncManager;
 import com.android.messaging.datamodel.action.DumpDatabaseAction;
@@ -179,6 +182,13 @@ public class DebugUtils {
             }
         });
 
+        arrayAdapter.add(new DebugAction("Test sharing a file URI") {
+            @Override
+            public void run() {
+                shareFileUri();
+            }
+        });
+
         builder.setAdapter(arrayAdapter,
                 new android.content.DialogInterface.OnClickListener() {
             @Override
@@ -422,4 +432,17 @@ public class DebugUtils {
     public static boolean debugClassZeroSmsEnabled() {
         return sDebugClassZeroSms;
     }
+
+    /** Shares a ringtone file via file URI. */
+    private static void shareFileUri() {
+        final String packageName = "com.android.messaging";
+        final String fileName = "/system/media/audio/ringtones/Andromeda.ogg";
+
+        Intent intent = new Intent(Intent.ACTION_SEND);
+        intent.setPackage(packageName);
+        intent.putExtra(Intent.EXTRA_STREAM, Uri.parse("file://" + fileName));
+        intent.setType("image/*");
+        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        Factory.get().getApplicationContext().startActivity(intent);
+    }
 }