Function normalizeCredentials

server/utils.go:119–136

Process credentials for correctness: remove duplicate and unknown methods. In case of duplicate methods only the first one satisfying valueRequired is kept. If valueRequired is true, keep only those where Value is non-empty.

(creds []MsgCredClient, valueRequired bool)

// In case of duplicate methods only the first one satisfying valueRequired is kept.
// If valueRequired is true, keep only those where Value is non-empty.
func normalizeCredentials(creds []MsgCredClient, valueRequired bool) []MsgCredClient {
	if len(creds) == 0 {
		return nil
	}

	index := make(map[string]*MsgCredClient)
	for i := range creds {
		c := &creds[i]
		if _, ok := globals.validators[c.Method]; ok && (!valueRequired || c.Value != "") {
			index[c.Method] = c
		}
	}
	creds = make([]MsgCredClient, 0, len(index))
	for _, c := range index {
		creds = append(creds, *index[c.Method])
	}
	return creds
}

// Get a string slice with methods of credentials.
func credentialMethods(creds []MsgCredClient) []string {