// Cobbler's errors come in an XML document which contains
// both an error code and an error message. This snippet converts
// that document into a proper Go error object.
// For more detail on how that document looks like check
// `./fixtures/login-res-err.xml`
func errorInCobbler(body []byte) error {
path := xmlpath.MustCompile("//member/value")
rootNode, err := xmlpath.Parse(bytes.NewBuffer(body))
if err != nil {
return err
}
found := 0
numberOfNodesToFind := 2
elements := make([]string, numberOfNodesToFind)
iterator := path.Iter(rootNode)
for iterator.Next() {
if found < numberOfNodesToFind {
elements[found] = iterator.Node().String()
found++
}
}
if found == 2 {
return fmt.Errorf("error %s: %s", elements[0], elements[1])
}
return nil
}
// Find the given xpath in the given document.
// params:
// - xpath: the xpath to look for
// - doc: the XML document to inspect. Must be an array of bytes.
func findXPath(xpath string, doc []byte) (string, error) {
path := xmlpath.MustCompile(xpath)
rootNode, err := xmlpath.Parse(bytes.NewBuffer(doc))
if err != nil {
return "", err
}
if value, ok := path.String(rootNode); ok {
return value, nil
}
return "", fmt.Errorf("node blank or not found\n%s", rootNode.String())
}