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caddytls: Clean up some code related to automation

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This commit is contained in:
Matthew Holt 2020-03-15 21:22:26 -06:00
parent c67c8e60cc
commit 0433f9d075
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GPG key ID: 2A349DD577D586A5
4 changed files with 318 additions and 299 deletions
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14
caddyconfig/httpcaddyfile/httptype.go
View file

@ -195,7 +195,7 @@ func (st ServerType) Setup(originalServerBlocks []caddyfile.ServerBlock,
tlsApp.Automation = new(caddytls.AutomationConfig)
}
tlsApp.Automation.Policies = append(tlsApp.Automation.Policies, &caddytls.AutomationPolicy{
Hosts: sblockHosts,
Subjects: sblockHosts,
IssuerRaw: caddyconfig.JSONModuleObject(issuer, "module", issuer.(caddy.Module).CaddyModule().ID.Name(), &warnings),
})
} else {
@ -768,17 +768,17 @@ func consolidateAutomationPolicies(aps []*caddytls.AutomationPolicy) []*caddytls
// if the policy is the same, we can keep just one, but we have
// to be careful which one we keep; if only one has any hostnames
// defined, then we need to keep the one without any hostnames,
// otherwise the one without any hosts (a catch-all) would be
// eaten up by the one with hosts; and if both have hosts, we
// otherwise the one without any subjects (a catch-all) would be
// eaten up by the one with subjects; and if both have subjects, we
// need to combine their lists
if reflect.DeepEqual(aps[i].IssuerRaw, aps[j].IssuerRaw) &&
aps[i].ManageSync == aps[j].ManageSync {
if len(aps[i].Hosts) == 0 && len(aps[j].Hosts) > 0 {
if len(aps[i].Subjects) == 0 && len(aps[j].Subjects) > 0 {
aps = append(aps[:j], aps[j+1:]...)
} else if len(aps[i].Hosts) > 0 && len(aps[j].Hosts) == 0 {
} else if len(aps[i].Subjects) > 0 && len(aps[j].Subjects) == 0 {
aps = append(aps[:i], aps[i+1:]...)
} else {
aps[i].Hosts = append(aps[i].Hosts, aps[j].Hosts...)
aps[i].Subjects = append(aps[i].Subjects, aps[j].Subjects...)
aps = append(aps[:j], aps[j+1:]...)
}
i--
@ -789,7 +789,7 @@ func consolidateAutomationPolicies(aps []*caddytls.AutomationPolicy) []*caddytls
// ensure any catch-all policies go last
sort.SliceStable(aps, func(i, j int) bool {
return len(aps[i].Hosts) > len(aps[j].Hosts)
return len(aps[i].Subjects) > len(aps[j].Subjects)
})
return aps

6
modules/caddyhttp/autohttps.go
View file

@ -235,7 +235,7 @@ uniqueDomainsLoop:
// one automation policy would be confusing and an error
if app.tlsApp.Automation != nil {
for _, ap := range app.tlsApp.Automation.Policies {
for _, apHost := range ap.Hosts {
for _, apHost := range ap.Subjects {
if apHost == d {
continue uniqueDomainsLoop
}
@ -424,7 +424,7 @@ func (app *App) createAutomationPolicies(ctx caddy.Context, publicNames, interna
// custom CA endpoint, for example - whichever one we choose must
// have a host list that is a superset of the policy we make...
// the policy with no host filter is guaranteed to qualify
if len(ap.Hosts) == 0 {
if len(ap.Subjects) == 0 {
basePolicy = ap
break
}
@ -451,7 +451,7 @@ func (app *App) createAutomationPolicies(ctx caddy.Context, publicNames, interna
}
}
newPolicy.Issuer = issuer
newPolicy.Hosts = hosts
newPolicy.Subjects = hosts
return app.tlsApp.AddAutomationPolicy(newPolicy)
}

301
modules/caddytls/automation.go Normal file
View file

@ -0,0 +1,301 @@
// 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 caddytls
import (
"encoding/json"
"fmt"
"net/http"
"time"
"github.com/caddyserver/caddy/v2"
"github.com/caddyserver/certmagic"
"github.com/go-acme/lego/v3/challenge"
)
// AutomationConfig designates configuration for the
// construction and use of ACME clients.
type AutomationConfig struct {
// The list of automation policies. The first matching
// policy will be applied for a given certificate/name.
Policies []*AutomationPolicy `json:"policies,omitempty"`
// On-Demand TLS defers certificate operations to the
// moment they are needed, e.g. during a TLS handshake.
// Useful when you don't know all the hostnames up front.
// Caddy was the first web server to deploy this technology.
OnDemand *OnDemandConfig `json:"on_demand,omitempty"`
// Caddy staples OCSP (and caches the response) for all
// qualifying certificates by default. This setting
// changes how often it scans responses for freshness,
// and updates them if they are getting stale.
OCSPCheckInterval caddy.Duration `json:"ocsp_interval,omitempty"`
// Every so often, Caddy will scan all loaded, managed
// certificates for expiration. This setting changes how
// frequently the scan for expiring certificates is
// performed. If your certificate lifetimes are very
// short (less than ~24 hours), you should set this to
// a low value.
RenewCheckInterval caddy.Duration `json:"renew_interval,omitempty"`
defaultAutomationPolicy *AutomationPolicy
}
// AutomationPolicy designates the policy for automating the
// management (obtaining, renewal, and revocation) of managed
// TLS certificates.
//
// An AutomationPolicy value is not valid until it has been
// provisioned; use the `AddAutomationPolicy()` method on the
// TLS app to properly provision a new policy.
type AutomationPolicy struct {
// Which subjects (hostnames or IP addresses) this policy applies to.
Subjects []string `json:"subjects,omitempty"`
// The module that will issue certificates. Default: acme
IssuerRaw json.RawMessage `json:"issuer,omitempty" caddy:"namespace=tls.issuance inline_key=module"`
// If true, certificates will be requested with MustStaple. Not all
// CAs support this, and there are potentially serious consequences
// of enabling this feature without proper threat modeling.
MustStaple bool `json:"must_staple,omitempty"`
// How long before a certificate's expiration to try renewing it,
// as a function of its total lifetime. As a general and conservative
// rule, it is a good idea to renew a certificate when it has about
// 1/3 of its total lifetime remaining. This utilizes the majority
// of the certificate's lifetime while still saving time to
// troubleshoot problems. However, for extremely short-lived certs,
// you may wish to increase the ratio to ~1/2.
RenewalWindowRatio float64 `json:"renewal_window_ratio,omitempty"`
// The type of key to generate for certificates.
// Supported values: `ed25519`, `p256`, `p384`, `rsa2048`, `rsa4096`.
KeyType string `json:"key_type,omitempty"`
// Optionally configure a separate storage module associated with this
// manager, instead of using Caddy's global/default-configured storage.
StorageRaw json.RawMessage `json:"storage,omitempty" caddy:"namespace=caddy.storage inline_key=module"`
// If true, certificates will be managed "on demand"; that is, during
// TLS handshakes or when needed, as opposed to at startup or config
// load.
OnDemand bool `json:"on_demand,omitempty"`
// If true, certificate management will be conducted
// in the foreground; this will block config reloads
// and return errors if there were problems with
// obtaining or renewing certificates. This is often
// not desirable, especially when serving sites out
// of your control. Default: false
// TODO: is this really necessary per-policy? why not a global setting...
ManageSync bool `json:"manage_sync,omitempty"`
// Issuer stores the decoded issuer parameters. This is only
// used to populate an underlying certmagic.Config's Issuer
// field; it is not referenced thereafter.
Issuer certmagic.Issuer `json:"-"`
magic *certmagic.Config
storage certmagic.Storage
}
// provision converts ap into a CertMagic config.
func (ap *AutomationPolicy) provision(tlsApp *TLS) error {
// policy-specific storage implementation
if ap.StorageRaw != nil {
val, err := tlsApp.ctx.LoadModule(ap, "StorageRaw")
if err != nil {
return fmt.Errorf("loading TLS storage module: %v", err)
}
cmStorage, err := val.(caddy.StorageConverter).CertMagicStorage()
if err != nil {
return fmt.Errorf("creating TLS storage configuration: %v", err)
}
ap.storage = cmStorage
}
var ond *certmagic.OnDemandConfig
if ap.OnDemand {
var onDemand *OnDemandConfig
if tlsApp.Automation != nil {
onDemand = tlsApp.Automation.OnDemand
}
ond = &certmagic.OnDemandConfig{
DecisionFunc: func(name string) error {
if onDemand != nil {
if onDemand.Ask != "" {
err := onDemandAskRequest(onDemand.Ask, name)
if err != nil {
return err
}
}
// check the rate limiter last because
// doing so makes a reservation
if !onDemandRateLimiter.Allow() {
return fmt.Errorf("on-demand rate limit exceeded")
}
}
return nil
},
}
}
if ap.IssuerRaw != nil {
val, err := tlsApp.ctx.LoadModule(ap, "IssuerRaw")
if err != nil {
return fmt.Errorf("loading TLS automation management module: %s", err)
}
ap.Issuer = val.(certmagic.Issuer)
}
keySource := certmagic.StandardKeyGenerator{
KeyType: supportedCertKeyTypes[ap.KeyType],
}
storage := ap.storage
if storage == nil {
storage = tlsApp.ctx.Storage()
}
template := certmagic.Config{
MustStaple: ap.MustStaple,
RenewalWindowRatio: ap.RenewalWindowRatio,
KeySource: keySource,
OnDemand: ond,
Storage: storage,
Issuer: ap.Issuer, // if nil, certmagic.New() will set default in returned Config
}
if rev, ok := ap.Issuer.(certmagic.Revoker); ok {
template.Revoker = rev
}
ap.magic = certmagic.New(tlsApp.certCache, template)
// sometimes issuers may need the parent certmagic.Config in
// order to function properly (for example, ACMEIssuer needs
// access to the correct storage and cache so it can solve
// ACME challenges -- it's an annoying, inelegant circular
// dependency that I don't know how to resolve nicely!)
if configger, ok := ap.Issuer.(ConfigSetter); ok {
configger.SetConfig(ap.magic)
}
return nil
}
// ChallengesConfig configures the ACME challenges.
type ChallengesConfig struct {
// HTTP configures the ACME HTTP challenge. This
// challenge is enabled and used automatically
// and by default.
HTTP *HTTPChallengeConfig `json:"http,omitempty"`
// TLSALPN configures the ACME TLS-ALPN challenge.
// This challenge is enabled and used automatically
// and by default.
TLSALPN *TLSALPNChallengeConfig `json:"tls-alpn,omitempty"`
// Configures the ACME DNS challenge. Because this
// challenge typically requires credentials for
// interfacing with a DNS provider, this challenge is
// not enabled by default. This is the only challenge
// type which does not require a direct connection
// to Caddy from an external server.
DNSRaw json.RawMessage `json:"dns,omitempty" caddy:"namespace=tls.dns inline_key=provider"`
DNS challenge.Provider `json:"-"`
}
// HTTPChallengeConfig configures the ACME HTTP challenge.
type HTTPChallengeConfig struct {
// If true, the HTTP challenge will be disabled.
Disabled bool `json:"disabled,omitempty"`
// An alternate port on which to service this
// challenge. Note that the HTTP challenge port is
// hard-coded into the spec and cannot be changed,
// so you would have to forward packets from the
// standard HTTP challenge port to this one.
AlternatePort int `json:"alternate_port,omitempty"`
}
// TLSALPNChallengeConfig configures the ACME TLS-ALPN challenge.
type TLSALPNChallengeConfig struct {
// If true, the TLS-ALPN challenge will be disabled.
Disabled bool `json:"disabled,omitempty"`
// An alternate port on which to service this
// challenge. Note that the TLS-ALPN challenge port
// is hard-coded into the spec and cannot be changed,
// so you would have to forward packets from the
// standard TLS-ALPN challenge port to this one.
AlternatePort int `json:"alternate_port,omitempty"`
}
// OnDemandConfig configures on-demand TLS, for obtaining
// needed certificates at handshake-time. Because this
// feature can easily be abused, you should set up rate
// limits and/or an internal endpoint that Caddy can
// "ask" if it should be allowed to manage certificates
// for a given hostname.
type OnDemandConfig struct {
// An optional rate limit to throttle the
// issuance of certificates from handshakes.
RateLimit *RateLimit `json:"rate_limit,omitempty"`
// If Caddy needs to obtain or renew a certificate
// during a TLS handshake, it will perform a quick
// HTTP request to this URL to check if it should be
// allowed to try to get a certificate for the name
// in the "domain" query string parameter, like so:
// `?domain=example.com`. The endpoint must return a
// 200 OK status if a certificate is allowed;
// anything else will cause it to be denied.
// Redirects are not followed.
Ask string `json:"ask,omitempty"`
}
// RateLimit specifies an interval with optional burst size.
type RateLimit struct {
// A duration value. A certificate may be obtained 'burst'
// times during this interval.
Interval caddy.Duration `json:"interval,omitempty"`
// How many times during an interval a certificate can be obtained.
Burst int `json:"burst,omitempty"`
}
// ConfigSetter is implemented by certmagic.Issuers that
// need access to a parent certmagic.Config as part of
// their provisioning phase. For example, the ACMEIssuer
// requires a config so it can access storage and the
// cache to solve ACME challenges.
type ConfigSetter interface {
SetConfig(cfg *certmagic.Config)
}
// These perpetual values are used for on-demand TLS.
var (
onDemandRateLimiter = certmagic.NewRateLimiter(0, 0)
onDemandAskClient = &http.Client{
Timeout: 10 * time.Second,
CheckRedirect: func(req *http.Request, via []*http.Request) error {
return fmt.Errorf("following http redirects is not allowed")
},
}
)

296
modules/caddytls/tls.go
View file

@ -28,7 +28,6 @@ import (
"github.com/caddyserver/caddy/v2"
"github.com/caddyserver/certmagic"
"github.com/go-acme/lego/v3/challenge"
"go.uber.org/zap"
)
@ -183,7 +182,7 @@ func (t *TLS) Validate() error {
// isn't useful and is probably a mistake
hostSet := make(map[string]int)
for i, ap := range t.Automation.Policies {
for _, h := range ap.Hosts {
for _, h := range ap.Subjects {
if first, ok := hostSet[h]; ok {
return fmt.Errorf("automation policy %d: cannot apply more than one automation policy to host: %s (first match in policy %d)", i, h, first)
}
@ -300,7 +299,7 @@ func (t *TLS) AddAutomationPolicy(ap *AutomationPolicy) error {
for i, other := range t.Automation.Policies {
// if a catch-all policy (or really, any policy with
// fewer names) exists, prioritize this new policy
if len(other.Hosts) < len(ap.Hosts) {
if len(other.Subjects) < len(ap.Subjects) {
t.Automation.Policies = append(t.Automation.Policies[:i],
append([]*AutomationPolicy{ap}, t.Automation.Policies[i+1:]...)...)
return nil
@ -318,10 +317,10 @@ func (t *TLS) getConfigForName(name string) *certmagic.Config {
func (t *TLS) getAutomationPolicyForName(name string) *AutomationPolicy {
for _, ap := range t.Automation.Policies {
if len(ap.Hosts) == 0 {
if len(ap.Subjects) == 0 {
return ap // no host filter is an automatic match
}
for _, h := range ap.Hosts {
for _, h := range ap.Subjects {
if h == name {
return ap
}
@ -399,261 +398,6 @@ type Certificate struct {
Tags []string
}
// AutomationConfig designates configuration for the
// construction and use of ACME clients.
type AutomationConfig struct {
// The list of automation policies. The first matching
// policy will be applied for a given certificate/name.
Policies []*AutomationPolicy `json:"policies,omitempty"`
// On-Demand TLS defers certificate operations to the
// moment they are needed, e.g. during a TLS handshake.
// Useful when you don't know all the hostnames up front.
// Caddy was the first web server to deploy this technology.
OnDemand *OnDemandConfig `json:"on_demand,omitempty"`
// Caddy staples OCSP (and caches the response) for all
// qualifying certificates by default. This setting
// changes how often it scans responses for freshness,
// and updates them if they are getting stale.
OCSPCheckInterval caddy.Duration `json:"ocsp_interval,omitempty"`
// Every so often, Caddy will scan all loaded, managed
// certificates for expiration. This setting changes how
// frequently the scan for expiring certificates is
// performed. If your certificate lifetimes are very
// short (less than ~24 hours), you should set this to
// a low value.
RenewCheckInterval caddy.Duration `json:"renew_interval,omitempty"`
defaultAutomationPolicy *AutomationPolicy
}
// AutomationPolicy designates the policy for automating the
// management (obtaining, renewal, and revocation) of managed
// TLS certificates.
//
// An AutomationPolicy value is not valid until it has been
// provisioned; use the `AddAutomationPolicy()` method on the
// TLS app to properly provision a new policy.
type AutomationPolicy struct {
// Which hostnames this policy applies to.
Hosts []string `json:"hosts,omitempty"`
// The module that will issue certificates. Default: acme
IssuerRaw json.RawMessage `json:"issuer,omitempty" caddy:"namespace=tls.issuance inline_key=module"`
// If true, certificates will be requested with MustStaple. Not all
// CAs support this, and there are potentially serious consequences
// of enabling this feature without proper threat modeling.
MustStaple bool `json:"must_staple,omitempty"`
// How long before a certificate's expiration to try renewing it,
// as a function of its total lifetime. As a general and conservative
// rule, it is a good idea to renew a certificate when it has about
// 1/3 of its total lifetime remaining. This utilizes the majority
// of the certificate's lifetime while still saving time to
// troubleshoot problems. However, for extremely short-lived certs,
// you may wish to increase the ratio to ~1/2.
RenewalWindowRatio float64 `json:"renewal_window_ratio,omitempty"`
// The type of key to generate for certificates.
// Supported values: `ed25519`, `p256`, `p384`, `rsa2048`, `rsa4096`.
KeyType string `json:"key_type,omitempty"`
// Optionally configure a separate storage module associated with this
// manager, instead of using Caddy's global/default-configured storage.
StorageRaw json.RawMessage `json:"storage,omitempty" caddy:"namespace=caddy.storage inline_key=module"`
// If true, certificates will be managed "on demand", that is, during
// TLS handshakes or when needed, as opposed to at startup or config
// load.
OnDemand bool `json:"on_demand,omitempty"`
// If true, certificate management will be conducted
// in the foreground; this will block config reloads
// and return errors if there were problems with
// obtaining or renewing certificates. This is often
// not desirable, especially when serving sites out
// of your control. Default: false
// TODO: is this really necessary per-policy? why not a global setting...
ManageSync bool `json:"manage_sync,omitempty"`
// Issuer stores the decoded issuer parameters. This is only
// used to populate an underlying certmagic.Config's Issuer
// field; it is not referenced thereafter.
Issuer certmagic.Issuer `json:"-"`
magic *certmagic.Config
storage certmagic.Storage
}
// provision converts ap into a CertMagic config.
func (ap *AutomationPolicy) provision(tlsApp *TLS) error {
// policy-specific storage implementation
if ap.StorageRaw != nil {
val, err := tlsApp.ctx.LoadModule(ap, "StorageRaw")
if err != nil {
return fmt.Errorf("loading TLS storage module: %v", err)
}
cmStorage, err := val.(caddy.StorageConverter).CertMagicStorage()
if err != nil {
return fmt.Errorf("creating TLS storage configuration: %v", err)
}
ap.storage = cmStorage
}
var ond *certmagic.OnDemandConfig
if ap.OnDemand {
var onDemand *OnDemandConfig
if tlsApp.Automation != nil {
onDemand = tlsApp.Automation.OnDemand
}
ond = &certmagic.OnDemandConfig{
DecisionFunc: func(name string) error {
if onDemand != nil {
if onDemand.Ask != "" {
err := onDemandAskRequest(onDemand.Ask, name)
if err != nil {
return err
}
}
// check the rate limiter last because
// doing so makes a reservation
if !onDemandRateLimiter.Allow() {
return fmt.Errorf("on-demand rate limit exceeded")
}
}
return nil
},
}
}
if ap.IssuerRaw != nil {
val, err := tlsApp.ctx.LoadModule(ap, "IssuerRaw")
if err != nil {
return fmt.Errorf("loading TLS automation management module: %s", err)
}
ap.Issuer = val.(certmagic.Issuer)
}
keySource := certmagic.StandardKeyGenerator{
KeyType: supportedCertKeyTypes[ap.KeyType],
}
storage := ap.storage
if storage == nil {
storage = tlsApp.ctx.Storage()
}
template := certmagic.Config{
MustStaple: ap.MustStaple,
RenewalWindowRatio: ap.RenewalWindowRatio,
KeySource: keySource,
OnDemand: ond,
Storage: storage,
Issuer: ap.Issuer, // if nil, certmagic.New() will set default in returned Config
}
if rev, ok := ap.Issuer.(certmagic.Revoker); ok {
template.Revoker = rev
}
ap.magic = certmagic.New(tlsApp.certCache, template)
// sometimes issuers may need the parent certmagic.Config in
// order to function properly (for example, ACMEIssuer needs
// access to the correct storage and cache so it can solve
// ACME challenges -- it's an annoying, inelegant circular
// dependency that I don't know how to resolve nicely!)
if configger, ok := ap.Issuer.(ConfigSetter); ok {
configger.SetConfig(ap.magic)
}
return nil
}
// ChallengesConfig configures the ACME challenges.
type ChallengesConfig struct {
// HTTP configures the ACME HTTP challenge. This
// challenge is enabled and used automatically
// and by default.
HTTP *HTTPChallengeConfig `json:"http,omitempty"`
// TLSALPN configures the ACME TLS-ALPN challenge.
// This challenge is enabled and used automatically
// and by default.
TLSALPN *TLSALPNChallengeConfig `json:"tls-alpn,omitempty"`
// Configures the ACME DNS challenge. Because this
// challenge typically requires credentials for
// interfacing with a DNS provider, this challenge is
// not enabled by default. This is the only challenge
// type which does not require a direct connection
// to Caddy from an external server.
DNSRaw json.RawMessage `json:"dns,omitempty" caddy:"namespace=tls.dns inline_key=provider"`
DNS challenge.Provider `json:"-"`
}
// HTTPChallengeConfig configures the ACME HTTP challenge.
type HTTPChallengeConfig struct {
// If true, the HTTP challenge will be disabled.
Disabled bool `json:"disabled,omitempty"`
// An alternate port on which to service this
// challenge. Note that the HTTP challenge port is
// hard-coded into the spec and cannot be changed,
// so you would have to forward packets from the
// standard HTTP challenge port to this one.
AlternatePort int `json:"alternate_port,omitempty"`
}
// TLSALPNChallengeConfig configures the ACME TLS-ALPN challenge.
type TLSALPNChallengeConfig struct {
// If true, the TLS-ALPN challenge will be disabled.
Disabled bool `json:"disabled,omitempty"`
// An alternate port on which to service this
// challenge. Note that the TLS-ALPN challenge port
// is hard-coded into the spec and cannot be changed,
// so you would have to forward packets from the
// standard TLS-ALPN challenge port to this one.
AlternatePort int `json:"alternate_port,omitempty"`
}
// OnDemandConfig configures on-demand TLS, for obtaining
// needed certificates at handshake-time. Because this
// feature can easily be abused, you should set up rate
// limits and/or an internal endpoint that Caddy can
// "ask" if it should be allowed to manage certificates
// for a given hostname.
type OnDemandConfig struct {
// An optional rate limit to throttle the
// issuance of certificates from handshakes.
RateLimit *RateLimit `json:"rate_limit,omitempty"`
// If Caddy needs to obtain or renew a certificate
// during a TLS handshake, it will perform a quick
// HTTP request to this URL to check if it should be
// allowed to try to get a certificate for the name
// in the "domain" query string parameter, like so:
// `?domain=example.com`. The endpoint must return a
// 200 OK status if a certificate is allowed;
// anything else will cause it to be denied.
// Redirects are not followed.
Ask string `json:"ask,omitempty"`
}
// RateLimit specifies an interval with optional burst size.
type RateLimit struct {
// A duration value. A certificate may be obtained 'burst'
// times during this interval.
Interval caddy.Duration `json:"interval,omitempty"`
// How many times during an interval a certificate can be obtained.
Burst int `json:"burst,omitempty"`
}
// AutomateLoader is a no-op certificate loader module
// that is treated as a special case: it uses this app's
// automation features to load certificates for the
@ -669,26 +413,6 @@ func (AutomateLoader) CaddyModule() caddy.ModuleInfo {
}
}
// ConfigSetter is implemented by certmagic.Issuers that
// need access to a parent certmagic.Config as part of
// their provisioning phase. For example, the ACMEIssuer
// requires a config so it can access storage and the
// cache to solve ACME challenges.
type ConfigSetter interface {
SetConfig(cfg *certmagic.Config)
}
// These perpetual values are used for on-demand TLS.
var (
onDemandRateLimiter = certmagic.NewRateLimiter(0, 0)
onDemandAskClient = &http.Client{
Timeout: 10 * time.Second,
CheckRedirect: func(req *http.Request, via []*http.Request) error {
return fmt.Errorf("following http redirects is not allowed")
},
}
)
// Variables related to storage cleaning.
var (
storageCleanInterval = 12 * time.Hour
@ -697,15 +421,16 @@ var (
storageCleanMu sync.Mutex
)
const automateKey = "automate"
// Interface guards
var (
_ caddy.App = (*TLS)(nil)
_ caddy.Provisioner = (*TLS)(nil)
_ caddy.Validator = (*TLS)(nil)
_ caddy.CleanerUpper = (*TLS)(nil)
)
const automateKey = "automate"
// TODO: This is temporary until the release candidates
// (beta 16 changed the storage path for certificates),
// after which this function can be deleted
@ -823,10 +548,3 @@ func (t *TLS) moveCertificates() error {
return nil
}
// Interface guards
var (
_ caddy.Provisioner = (*TLS)(nil)
_ caddy.Validator = (*TLS)(nil)
_ caddy.App = (*TLS)(nil)
)