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// Copyright 2015 Matthew Holt and The Caddy Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package caddypki
import (
"fmt"
"github.com/caddyserver/caddy/v2"
"go.uber.org/zap"
)
func init() {
caddy.RegisterModule(PKI{})
}
// PKI provides Public Key Infrastructure facilities for Caddy.
type PKI struct {
// The CAs to manage. Each CA is keyed by an ID that is used
// to uniquely identify it from other CAs. The default CA ID
// is "local".
CAs map[string]*CA `json:"certificate_authorities,omitempty"`
ctx caddy.Context
log *zap.Logger
}
// CaddyModule returns the Caddy module information.
func (PKI) CaddyModule() caddy.ModuleInfo {
return caddy.ModuleInfo{
ID: "pki",
New: func() caddy.Module { return new(PKI) },
}
}
// Provision sets up the configuration for the PKI app.
func (p *PKI) Provision(ctx caddy.Context) error {
p.ctx = ctx
p.log = ctx.Logger(p)
// if this app is initialized at all, ensure there's
// at least a default CA that can be used
if len(p.CAs) == 0 {
p.CAs = map[string]*CA{defaultCAID: new(CA)}
}
for caID, ca := range p.CAs {
err := ca.Provision(ctx, caID, p.log)
if err != nil {
return fmt.Errorf("provisioning CA '%s': %v", caID, err)
}
}
return nil
}
// Start starts the PKI app.
func (p *PKI) Start() error {
// install roots to trust store, if not disabled
for _, ca := range p.CAs {
if ca.InstallTrust != nil && !*ca.InstallTrust {
ca.log.Warn("root certificate trust store installation disabled; unconfigured clients may show warnings",
zap.String("path", ca.rootCertPath))
continue
}
if err := ca.installRoot(); err != nil {
// could be some system dependencies that are missing;
// shouldn't totally prevent startup, but we should log it
ca.log.Error("failed to install root certificate",
zap.Error(err),
zap.String("certificate_file", ca.rootCertPath))
}
}
// see if root/intermediates need renewal...
p.renewCerts()
// ...and keep them renewed
go p.maintenance()
return nil
}
// Stop stops the PKI app.
func (p *PKI) Stop() error {
return nil
}
// Interface guards
var (
_ caddy.Provisioner = (*PKI)(nil)
_ caddy.App = (*PKI)(nil)
)
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