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e1aa862e6a
* acmeserver: support specifying the allowed challenge types * add caddyfile adapt tests * introduce basic acme_server test * skip acme test on unsuitable environments * skip integration tests of ACME * documentation * add negative-scenario test for mismatched allowed challenges * a bit more docs * fix tests for ACME challenges * appease the linter * skip ACME tests on s390x * enable ACME challenge tests on all machines * Apply suggestions from code review Co-authored-by: Matt Holt <mholt@users.noreply.github.com> --------- Co-authored-by: Matt Holt <mholt@users.noreply.github.com>
78 lines
1.8 KiB
Go
78 lines
1.8 KiB
Go
package acmeserver
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import (
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"encoding/json"
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"fmt"
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"strings"
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"github.com/smallstep/certificates/authority/provisioner"
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)
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// ACMEChallenge is an opaque string that represents supported ACME challenges.
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type ACMEChallenge string
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const (
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HTTP_01 ACMEChallenge = "http-01"
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DNS_01 ACMEChallenge = "dns-01"
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TLS_ALPN_01 ACMEChallenge = "tls-alpn-01"
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)
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// validate checks if the given challenge is supported.
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func (c ACMEChallenge) validate() error {
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switch c {
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case HTTP_01, DNS_01, TLS_ALPN_01:
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return nil
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default:
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return fmt.Errorf("acme challenge %q is not supported", c)
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}
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}
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// The unmarshaller first marshals the value into a string. Then it
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// trims any space around it and lowercase it for normaliztion. The
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// method does not and should not validate the value within accepted enums.
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func (c *ACMEChallenge) UnmarshalJSON(b []byte) error {
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var s string
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if err := json.Unmarshal(b, &s); err != nil {
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return err
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}
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*c = ACMEChallenge(strings.ToLower(strings.TrimSpace(s)))
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return nil
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}
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// String returns a string representation of the challenge.
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func (c ACMEChallenge) String() string {
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return strings.ToLower(string(c))
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}
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// ACMEChallenges is a list of ACME challenges.
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type ACMEChallenges []ACMEChallenge
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// validate checks if the given challenges are supported.
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func (c ACMEChallenges) validate() error {
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for _, ch := range c {
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if err := ch.validate(); err != nil {
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return err
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}
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}
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return nil
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}
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func (c ACMEChallenges) toSmallstepType() []provisioner.ACMEChallenge {
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if len(c) == 0 {
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return nil
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}
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ac := make([]provisioner.ACMEChallenge, len(c))
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for i, ch := range c {
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ac[i] = provisioner.ACMEChallenge(ch)
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}
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return ac
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}
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func stringToChallenges(chs []string) ACMEChallenges {
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challenges := make(ACMEChallenges, len(chs))
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for i, ch := range chs {
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challenges[i] = ACMEChallenge(ch)
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}
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return challenges
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}
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