get into trouble with contact_avatar grpc method

[wj-Mcat]

When we call method from chatie-grpc:

response = await self.puppet_stub.contact_avatar(id=contact_id)

we will receive error :

2020-06-23 19:51:17,895 - Wechaty - ERROR - internal error <(<Status.INTERNAL: 13>, 'FileBox.toJSON() can only work on limited FileBoxType(s). See: <https://github.com/huan/file-box/issues/25>', None)>
ERROR:Wechaty:internal error <(<Status.INTERNAL: 13>, 'FileBox.toJSON() can only work on limited FileBoxType(s). See: <https://github.com/huan/file-box/issues/25>', None)>

It seems that this error is from hostie-server. @huan

[huan]

Yes, you are right.

This means that the FileBox in the server is not one of the following three types:

1. FileBoxType.Base64
2. FileBoxType.Url
3. FileBoxType.QRCode

See: huan/file-box#25

What puppet are you using when you get this error message?

[wj-Mcat]

The running puppet is under donut_token, which is using python-wechaty-puppet-hostie.

I test the room_avatar which run well for me, and the result type of response is FileBoxType.Url.

https://github.com/wechaty/python-wechaty-puppet-hostie/blob/f9ee69a861c337cbd1bb7c06199e24c3cd8beb29/src/wechaty_puppet_hostie/puppet.py#L819-L838

[wj-Mcat]

It seems that room_avatar and contact_avatar should have the same FileBoxType, but depended on the
weixin machinism.

[huan]

I think we should support the following three types in our Python FileBox first:

1. FileBoxType.Base64
2. FileBoxType.Url
3. FileBoxType.QRCode

I'll have a check on the wechaty-puppet-hostie later.

To explain what we need to do with the wechaty-puppet-hostie: we need to make sure that the FileBox of room_avatar and the contact_avatar must be one of the above three types.

If not, convert it before we use it.