1//go:build go1.18
 2// +build go1.18
 3
 4// Copyright (c) Microsoft Corporation. All rights reserved.
 5// Licensed under the MIT License.
 6
 7package azidentity
 8
 9import (
10	"errors"
11	"time"
12)
13
14// cliTimeout is the default timeout for authentication attempts via CLI tools
15const cliTimeout = 10 * time.Second
16
17// unavailableIfInChain returns err or, if the credential was invoked by DefaultAzureCredential, a
18// credentialUnavailableError having the same message. This ensures DefaultAzureCredential will try
19// the next credential in its chain (another developer credential).
20func unavailableIfInChain(err error, inDefaultChain bool) error {
21	if err != nil && inDefaultChain {
22		var unavailableErr credentialUnavailable
23		if !errors.As(err, &unavailableErr) {
24			err = newCredentialUnavailableError(credNameAzureDeveloperCLI, err.Error())
25		}
26	}
27	return err
28}
29
30// validScope is for credentials authenticating via external tools. The authority validates scopes for all other credentials.
31func validScope(scope string) bool {
32	for _, r := range scope {
33		if !(alphanumeric(r) || r == '.' || r == '-' || r == '_' || r == '/' || r == ':') {
34			return false
35		}
36	}
37	return true
38}