// handleHostFingerprintInfo obtains the host fingerprint and some information about it.
func handleHostFingerprintInfo(request *api.Request) (interface{}, error) {
// Map the data to the custom type.
var data api.RequestHostFingerprintInfo
err := request.MapTo(&data)
if err != nil {
return nil, err
}
// Be sure it is a valid stripped host.
data.Host = utils.GetHostFromUrl(data.Host)
// Validate.
if len(data.Host) == 0 {
return nil, fmt.Errorf("invalid host: '%s'", data.Host)
}
// Skip host fingerprint checking if this is a local repository.
if strings.HasPrefix(data.Host, "file://") {
// Create the response value.
response := &api.ResponseHostFingerprintInfo{
Host: data.Host,
Trusted: true,
Fingerprint: "",
}
return response, nil
}
// Check if the fingerprint exists for the host.
exists, err := hostFingerprintExists(data.Host)
if err != nil {
return nil, fmt.Errorf("failed to get information about host fingerprint: %v", err)
}
// Obtain the fingerprint of the host.
fingerprint, err := getSshHostFingerprint(data.Host)
if err != nil {
return nil, fmt.Errorf("failed to obtain host fingerprint: %v", err)
}
// Create the response value.
response := &api.ResponseHostFingerprintInfo{
Host: data.Host,
Trusted: exists,
Fingerprint: fingerprint,
}
return response, nil
}
func (c CmdAdd) HandleHostFingerprint(sourceURL string) error {
host := utils.GetHostFromUrl(sourceURL)
// Create a new info request.
request := api.RequestHostFingerprintInfo{
Host: host,
}
// Send the info request to the daemon.
response, err := sendRequest(api.TypeHostFingerprintInfo, request)
if err != nil {
return err
}
// Map the response data to the info value.
var info api.ResponseHostFingerprintInfo
if err = response.MapTo(&info); err != nil {
return err
}
// Check if the host fingerprint is already trusted.
if info.Trusted {
return nil
}
// Ask the user if he trusts the given fingerprint.
fmt.Printf("Host fingerprint is missing.\nFingerprint of host '%s':\n\n", host)
fmt.Print(colorHint, info.Fingerprint, colorOutput)
fmt.Println("\n\nTrust it and add it?")
// Confirm the request.
if !confirmCommit() {
return fmt.Errorf("aborted: host fingerprint not trusted by user.")
}
// Create the request to add the fingerprint.
rAdd := api.RequestAddHostFingerprint{
Fingerprint: info.Fingerprint,
}
// Send the request to the daemon.
response, err = sendRequest(api.TypeAddHostFingerprint, rAdd)
if err != nil {
return err
}
return nil
}
