XX-4277 / Fix file transfer crashes

bindings/fileTransfer.go

@@ -10,6 +10,7 @@ package bindings
 import (
 	"encoding/base64"
 	"encoding/json"
+	"github.com/pkg/errors"
 	jww "github.com/spf13/jwalterweatherman"
 	"time"
 
@@ -149,6 +150,10 @@ func InitFileTransfer(e2eID int, receiveFileCallback ReceiveFileCallback,
 
 	// Create file transfer manager
 	m, err := fileTransfer.NewManager(fileTransferParams, user.api)
+	if err != nil {
+		return nil, errors.Errorf(
+			"could not create new file transfer manager: %+v", err)
+	}
 
 	rcb := func(tid *ftCrypto.TransferID, fileName, fileType string,
 		sender *id.ID, size uint32, preview []byte) {
@@ -167,11 +172,13 @@ func InitFileTransfer(e2eID int, receiveFileCallback ReceiveFileCallback,
 		return nil, err
 	}
 
+	jww.INFO.Printf("[FT] Before AddService")
 	// Add file transfer processes to API services tracking
 	err = user.api.AddService(m.StartProcesses)
 	if err != nil {
 		return nil, err
 	}
+	jww.INFO.Printf("[FT] After AddService")
 
 	// Return wrapped manager
 	return &FileTransfer{w: w}, nil