Intent recieved from action send generates SecurityException on URI

Question

I'm trying to accept images with my app to send them to a server. Setting up the intent filter was easy enough and that works like a charm. The thing i can't seem to figure out is the way i need to retrieve the file path from the uri in the intent.

I receive intents on my activity with this filter

<intent-filter>
   <action android:name="android.intent.action.SEND" />
   <action android:name="android.intent.action.SEND_MULTIPLE" />
   <category android:name="android.intent.category.DEFAULT" />
   <data android:mimeType="image/jpeg" />
   <data android:mimeType="image/png" />
   <data android:mimeType="image/gif" /> 
</intent-filter>

By trying to process the uri to get the file path I get this error by calling takePersistableUriPermission(uri, modeFlags):

java.lang.SecurityException: No persistable permission grants found for UID 10098 and Uri 0 @ content://media/external/images/media/124

The logic I use works for requesting images with an intent from inside my app, but receiving an intent from outside the app generates the error.

for Kitkat and above:

   final int flags = data.getFlags() & (Intent.FLAG_GRANT_READ_URI_PERMISSION | Intent.FLAG_GRANT_WRITE_URI_PERMISSION);
   final String[] imageColumns = {MediaStore.Images.Media.DATA};
   getActivity().getContentResolver().takePersistableUriPermission(uri, flags);
   String id = uri.getLastPathSegment().split(":")[1]; 
   Cursor imageCursor = context.managedQuery(getStorageUri(), imageColumns, MediaStore.Images.Media._ID + "=" + id, null, null);

because you set android:exported="false" which mean that other process cannot access this Activity. So you set it to true and do the same it will not crash — Damini Mehra, Apr 29 '16 at 12:06
@SanjayKakadiya no kitkat and above, just tested to be sure. — SjoerdvGestel, Apr 29 '16 at 12:08
please look at this [link](http://stackoverflow.com/questions/25414352/how-to-persist-permission-in-android-api-19-kitkat) — Nowshad, Apr 29 '16 at 12:09
@DaminiMehra I've added android:exported="true" to the activity that has the mentioned intent-filter but nothing changed — SjoerdvGestel, Apr 29 '16 at 12:18
look this link: http://stackoverflow.com/questions/14398799/trying-to-send-intent-to-other-app-error-securityexception-permission-denial — Damini Mehra, Apr 29 '16 at 12:35

score 1 · Accepted Answer · answered Apr 29 '16 at 12:07

1

The thing i can't seem to figure out is the way i need to retrieve the file path from the uri in the intent.

There is no "file path from the uri". A Uri is not a file.

By trying to proses the uri to get the file path I get this error by calling takePersistableUriPermission(uri, modeFlags):

That just means that you cannot use the Uri once your process ends.

for Kitkat and above:

ACTION_GET_CONTENT is not obligated to return you some Uri that can be processed using that code.

To consume the content identified by the Uri, use openInputStream() on your ContentResolver.

answered Apr 29 '16 at 12:07

CommonsWare

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I guess you misunderstood my question. for one, i am aware that the URI does not contain the file path, and therefore i need to process it to get the file path. I'm using an intent filter here that will receive an intent from another app that sends that content, not `ACTION_GET_CONTENT` with start activity for result. – SjoerdvGestel Apr 29 '16 at 12:27
1

@SjoerdvGestel: "and therefore i need to process it to get the file path" -- you cannot "process it to get the file path", other than perhaps using `openInputStream()` to copy the content to some file that you control. There is no requirement for the user to pick a piece of content that you can access via the filesystem. The content could be on internal storage of another app, or on removable storage, or in a BLOB column of another app's database, or in "the cloud" that needs to be downloaded by the other app. – CommonsWare Apr 29 '16 at 12:30
1

@SjoerdvGestel: Similarly, there is no requirement for a third-party app to grant you persistable permissions to that `Uri`. That is up to the other app to offer; you cannot force developers to offer it, short of using heavy weaponry. – CommonsWare Apr 29 '16 at 12:32
thanks! i've compaired the uri's from booth inside my app and from the intent filter and there differen. thats the issue i thought booth would be the same. – SjoerdvGestel Apr 29 '16 at 12:35
yep getActivity().getContentResolver().takePersistableUriPermission(uri, flags); is not needed at all – SjoerdvGestel Apr 29 '16 at 12:43

Intent recieved from action send generates SecurityException on URI

1 Answers1