RemoteForm Profile not working with File uploads

[shaneonabike]

Thanks for your awesome work on this extension. I came across a strange little issue pertaining to File Custom Fields causing the data object to return NULL.

Setup

• Custom Fields containing: Text field, File upload field
• Profile matching the above

Steps to reproduce

1. Create the profile and custom fields
2. Setup RemoteForm and add the RemoteForm to a page (in my situation it's a Drupal page)
3. Add the text information, and choose an image file
4. Click Submit
5. Receive the error message That entity is not allowed: .

Issue

Digging deeper it would seem that the issue happens in CRM/Remoteform/Page/RemoteForm.php when the data object is being parsed in json_decode. The data object returns NULL and then explodes in the sanitizeInput call. Ironically, I can use the same Profile Form and exclude the uploaded file and the data is being processed properly.

Note: For what it's worth this is injecting into a CiviCase but I don't think that would effect things

[jmcclelland]

Oh, yeah, I have never tried to add a file upload and since file uploads are a bit different then normal fields I'm not surprised it doesn't work. I don't have time to make the fix myself, but would welcome a patch if you think you can make it work.