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41 results

ud.go

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    Jake Taylor authored
    5c057e9a
    History
    ud.go 1.33 KiB
    package ud
    
    import (
    	"github.com/pkg/errors"
    	"gitlab.com/elixxir/crypto/contact"
    	"gitlab.com/xx_network/comms/connect"
    	"gitlab.com/xx_network/primitives/id"
    	"time"
    )
    
    // userDiscovery is the user discovery's contact information.
    type userDiscovery struct {
    	host    *connect.Host
    	contact contact.Contact
    }
    
    // setUserDiscovery sets the ud object within Manager.
    // The specified the contact information will be used for
    // all further Manager operations which contact the UD server.
    func (m *Manager) setUserDiscovery(cert,
    	contactFile []byte, address string) error {
    	params := connect.GetDefaultHostParams()
    	params.AuthEnabled = false
    	params.SendTimeout = 20 * time.Second
    
    	udIdBytes, dhPubKeyBytes, err := contact.ReadContactFromFile(contactFile)
    	if err != nil {
    		return err
    	}
    
    	udID, err := id.Unmarshal(udIdBytes)
    	if err != nil {
    		return err
    	}
    
    	// Add a new host and return it if it does not already exist
    	host, err := m.comms.AddHost(udID, address,
    		cert, params)
    	if err != nil {
    		return errors.WithMessage(err, "User Discovery host object could "+
    			"not be constructed.")
    	}
    
    	dhPubKey := m.user.GetE2E().GetGroup().NewInt(1)
    	err = dhPubKey.UnmarshalJSON(dhPubKeyBytes)
    	if err != nil {
    		return err
    	}
    
    	m.ud = &userDiscovery{
    		host: host,
    		contact: contact.Contact{
    			ID:       udID,
    			DhPubKey: dhPubKey,
    		},
    	}
    
    	return nil
    }