mirror of
https://github.com/caddyserver/caddy.git
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57a708d189
Huge thank-you to Tailscale (https://tailscale.com) for making this change possible! This is a great feature for Caddy and Tailscale is a great fit for a standard implementation. * caddytls: GetCertificate modules; Tailscale * Caddyfile support for get_certificate Also fix AP provisioning in case of empty subject list (persist loaded module on struct, much like Issuers, to surive reprovisioning). And implement start of HTTP cert getter, still WIP. * Update modules/caddytls/automation.go Co-authored-by: Francis Lavoie <lavofr@gmail.com> * Use tsclient package, check status for name * Implement HTTP cert getter And use reuse CertMagic's PEM functions for private keys. * Remove cache option from Tailscale getter Tailscale does its own caching and we don't need the added complexity... for now, at least. * Several updates - Option to disable cert automation in auto HTTPS - Support multiple cert managers - Remove cache feature from cert manager modules - Minor improvements to auto HTTPS logging * Run go mod tidy * Try to get certificates from Tailscale implicitly Only for domains ending in .ts.net. I think this is really cool! Co-authored-by: Francis Lavoie <lavofr@gmail.com>
100 lines
2.8 KiB
Go
100 lines
2.8 KiB
Go
// Copyright 2015 Matthew Holt and The Caddy Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package caddypki
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import (
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"bytes"
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"crypto"
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"crypto/x509"
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"encoding/pem"
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"fmt"
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"os"
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"github.com/caddyserver/certmagic"
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)
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func pemDecodeSingleCert(pemDER []byte) (*x509.Certificate, error) {
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pemBlock, remaining := pem.Decode(pemDER)
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if pemBlock == nil {
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return nil, fmt.Errorf("no PEM block found")
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}
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if len(remaining) > 0 {
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return nil, fmt.Errorf("input contained more than a single PEM block")
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}
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if pemBlock.Type != "CERTIFICATE" {
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return nil, fmt.Errorf("expected PEM block type to be CERTIFICATE, but got '%s'", pemBlock.Type)
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}
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return x509.ParseCertificate(pemBlock.Bytes)
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}
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func pemEncodeCert(der []byte) ([]byte, error) {
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return pemEncode("CERTIFICATE", der)
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}
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func pemEncode(blockType string, b []byte) ([]byte, error) {
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var buf bytes.Buffer
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err := pem.Encode(&buf, &pem.Block{Type: blockType, Bytes: b})
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return buf.Bytes(), err
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}
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func trusted(cert *x509.Certificate) bool {
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chains, err := cert.Verify(x509.VerifyOptions{})
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return len(chains) > 0 && err == nil
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}
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// KeyPair represents a public-private key pair, where the
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// public key is also called a certificate.
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type KeyPair struct {
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// The certificate. By default, this should be the path to
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// a PEM file unless format is something else.
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Certificate string `json:"certificate,omitempty"`
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// The private key. By default, this should be the path to
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// a PEM file unless format is something else.
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PrivateKey string `json:"private_key,omitempty"`
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// The format in which the certificate and private
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// key are provided. Default: pem_file
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Format string `json:"format,omitempty"`
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}
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// Load loads the certificate and key.
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func (kp KeyPair) Load() (*x509.Certificate, crypto.Signer, error) {
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switch kp.Format {
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case "", "pem_file":
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certData, err := os.ReadFile(kp.Certificate)
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if err != nil {
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return nil, nil, err
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}
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keyData, err := os.ReadFile(kp.PrivateKey)
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if err != nil {
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return nil, nil, err
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}
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cert, err := pemDecodeSingleCert(certData)
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if err != nil {
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return nil, nil, err
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}
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key, err := certmagic.PEMDecodePrivateKey(keyData)
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if err != nil {
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return nil, nil, err
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}
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return cert, key, nil
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default:
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return nil, nil, fmt.Errorf("unsupported format: %s", kp.Format)
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}
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}
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