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tls/acme: Ability to customize trusted roots for ACME servers (#2756)

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Closes #2702
This commit is contained in:
Matt Holt 2019-09-24 15:46:39 -07:00 committed by GitHub
parent 3e8bff594a
commit 11696793bd
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 32 additions and 13 deletions
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2
go.mod
View file

@ -18,7 +18,7 @@ require (
github.com/klauspost/compress v1.7.1-0.20190613161414-0b31f265a57b
github.com/klauspost/cpuid v1.2.1
github.com/lucas-clemente/quic-go v0.7.1-0.20190908032346-fc962d18373a
github.com/mholt/certmagic v0.7.3
github.com/mholt/certmagic v0.7.3-0.20190917224939-65d418add14f
github.com/muhammadmuzzammil1998/jsonc v0.0.0-20190902132743-e4903c4dea48
github.com/rs/cors v1.6.0
github.com/russross/blackfriday/v2 v2.0.1

4
go.sum
View file

@ -156,8 +156,8 @@ github.com/mattn/go-runewidth v0.0.2/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzp
github.com/mattn/go-runewidth v0.0.4/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
github.com/mattn/go-tty v0.0.0-20180219170247-931426f7535a/go.mod h1:XPvLUNfbS4fJH25nqRHfWLMa1ONC8Amw+mIA639KxkE=
github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
github.com/mholt/certmagic v0.7.3 h1:1QOfAmk5uyWcfXJFQqFZZiEsJbPMBQ1vw/ttpVOUXQU=
github.com/mholt/certmagic v0.7.3/go.mod h1:hqHzDsY32TwZpj/KswVylheSISjquF/eOVOaJTYV15w=
github.com/mholt/certmagic v0.7.3-0.20190917224939-65d418add14f h1:IocLraK7JNMvVbuZShaLJMsWMPgdElPNwmPPWPb0XMI=
github.com/mholt/certmagic v0.7.3-0.20190917224939-65d418add14f/go.mod h1:hqHzDsY32TwZpj/KswVylheSISjquF/eOVOaJTYV15w=
github.com/miekg/dns v1.1.15 h1:CSSIDtllwGLMoA6zjdKnaE6Tx6eVUxQ29LUgGetiDCI=
github.com/miekg/dns v1.1.15/go.mod h1:W1PPwlIAgtquWBMBEV9nkV9Cazfe8ScdGz/Lj7v3Nrg=
github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=

19
modules/caddytls/acmemanager.go
View file

@ -15,8 +15,10 @@
package caddytls
import (
"crypto/x509"
"encoding/json"
"fmt"
"io/ioutil"
"net/url"
"time"
@ -47,8 +49,10 @@ type ACMEManagerMaker struct {
Challenges ChallengesConfig `json:"challenges,omitempty"`
OnDemand bool `json:"on_demand,omitempty"`
Storage json.RawMessage `json:"storage,omitempty"`
TrustedRootsPEMFiles []string `json:"trusted_roots_pem_files,omitempty"`
storage certmagic.Storage
rootPool *x509.CertPool
}
// CaddyModule returns the Caddy module information.
@ -91,6 +95,20 @@ func (m *ACMEManagerMaker) Provision(ctx caddy.Context) error {
m.Storage = nil // allow GC to deallocate
}
// add any custom CAs to trust store
if len(m.TrustedRootsPEMFiles) > 0 {
m.rootPool = x509.NewCertPool()
for _, pemFile := range m.TrustedRootsPEMFiles {
pemData, err := ioutil.ReadFile(pemFile)
if err != nil {
return fmt.Errorf("loading trusted root CA's PEM file: %s: %v", pemFile, err)
}
if !m.rootPool.AppendCertsFromPEM(pemData) {
return fmt.Errorf("unable to add %s to trust pool: %v", pemFile, err)
}
}
}
return nil
}
@ -150,6 +168,7 @@ func (m *ACMEManagerMaker) makeCertMagicConfig(ctx caddy.Context) certmagic.Conf
OnDemand: ond,
MustStaple: m.MustStaple,
Storage: storage,
TrustedRoots: m.rootPool,
// TODO: listenHost
}
}