Restore gRPC limitation for protobuf data size to the default (4MB)

[huan]

We have increased the gRPC data size for protobuf from 4MB to 100MB by #41, which introduced the event loop blocking problem described by #80, then we solved this problem by adding the stream support to our gRPC service by wechaty/grpc#96.

So we will restore the default size to our gRPC service to keep our service robust.

CC: @su-chang

[huan]

For multi-language Wechaty, please upgrade your gRPC service by replacing the old messageFile to messageFileStream for receiving files larger than 4MB because the messageFile will throw an exception when the Protocol Buffers data size is larger than 4MB.

@wechaty/python @wechaty/go @wechaty/java @wechaty/php @wechaty/scala @wechaty/dotnet

Resources

1. TypeScript implementation: https://github.com/wechaty/wechaty-puppet-service/tree/main/src/file-box-stream
2. gRPC definition: add file stream and image stream rpc call grpc#88

[huan]

Update (Oct, 2021)

We are deciding to use FileBox.fromUuid() with the gRPC Upload & Download to deal with the large files.

See:

• add uuid managers with FileBox uuid support (wip) #170