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path_fetch_issuers.go
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path_fetch_issuers.go
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// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: MPL-2.0
package pki
import (
"context"
"crypto/x509"
"encoding/pem"
"fmt"
"net/http"
"strings"
"time"
"github.com/hashicorp/vault/sdk/framework"
"github.com/hashicorp/vault/sdk/helper/certutil"
"github.com/hashicorp/vault/sdk/logical"
)
func pathListIssuers(b *backend) *framework.Path {
return &framework.Path{
Pattern: "issuers/?$",
DisplayAttrs: &framework.DisplayAttributes{
OperationPrefix: operationPrefixPKI,
OperationSuffix: "issuers",
},
Operations: map[logical.Operation]framework.OperationHandler{
logical.ListOperation: &framework.PathOperation{
Callback: b.pathListIssuersHandler,
Responses: map[int][]framework.Response{
http.StatusOK: {{
Description: "OK",
Fields: map[string]*framework.FieldSchema{
"keys": {
Type: framework.TypeStringSlice,
Description: `A list of keys`,
Required: true,
},
"key_info": {
Type: framework.TypeMap,
Description: `Key info with issuer name`,
Required: false,
},
},
}},
},
},
},
HelpSynopsis: pathListIssuersHelpSyn,
HelpDescription: pathListIssuersHelpDesc,
}
}
func (b *backend) pathListIssuersHandler(ctx context.Context, req *logical.Request, _ *framework.FieldData) (*logical.Response, error) {
if b.useLegacyBundleCaStorage() {
return logical.ErrorResponse("Can not list issuers until migration has completed"), nil
}
var responseKeys []string
responseInfo := make(map[string]interface{})
sc := b.makeStorageContext(ctx, req.Storage)
entries, err := sc.listIssuers()
if err != nil {
return nil, err
}
config, err := sc.getIssuersConfig()
if err != nil {
return nil, err
}
// For each issuer, we need not only the identifier (as returned by
// listIssuers), but also the name of the issuer. This means we have to
// fetch the actual issuer object as well.
for _, identifier := range entries {
issuer, err := sc.fetchIssuerById(identifier)
if err != nil {
return nil, err
}
responseKeys = append(responseKeys, string(identifier))
responseInfo[string(identifier)] = map[string]interface{}{
"issuer_name": issuer.Name,
"is_default": identifier == config.DefaultIssuerId,
"serial_number": issuer.SerialNumber,
// While nominally this could be considered sensitive information
// to be returned on an unauthed endpoint, there's two mitigating
// circumstances:
//
// 1. Key IDs are purely random numbers generated by Vault and
// have no relationship to the actual key material.
// 2. They also don't _do_ anything by themselves. There is no
// modification of KeyIDs allowed, you need to be authenticated
// to Vault to understand what they mean, you _essentially_
// get the same information from looking at/comparing various
// cert's SubjectPublicKeyInfo field, and there's the `default`
// reference that anyone with issuer generation capabilities
// can use even if they can't access any of the other /key/*
// endpoints.
//
// So all in all, exposing this value is not a security risk and
// is otherwise beneficial for the UI, hence its inclusion.
"key_id": issuer.KeyID,
}
}
return logical.ListResponseWithInfo(responseKeys, responseInfo), nil
}
const (
pathListIssuersHelpSyn = `Fetch a list of CA certificates.`
pathListIssuersHelpDesc = `
This endpoint allows listing of known issuing certificates, returning
their identifier and their name (if set).
`
)
func pathGetIssuer(b *backend) *framework.Path {
pattern := "issuer/" + framework.GenericNameRegex(issuerRefParam) + "$"
displayAttrs := &framework.DisplayAttributes{
OperationPrefix: operationPrefixPKI,
OperationSuffix: "issuer",
}
return buildPathIssuer(b, pattern, displayAttrs)
}
func pathGetUnauthedIssuer(b *backend) *framework.Path {
pattern := "issuer/" + framework.GenericNameRegex(issuerRefParam) + "/(json|der|pem)$"
displayAttrs := &framework.DisplayAttributes{
OperationPrefix: operationPrefixPKI,
OperationSuffix: "issuer-json|issuer-der|issuer-pem",
}
return buildPathGetIssuer(b, pattern, displayAttrs)
}
func buildPathIssuer(b *backend, pattern string, displayAttrs *framework.DisplayAttributes) *framework.Path {
fields := map[string]*framework.FieldSchema{}
fields = addIssuerRefNameFields(fields)
// Fields for updating issuer.
fields["manual_chain"] = &framework.FieldSchema{
Type: framework.TypeCommaStringSlice,
Description: `Chain of issuer references to use to build this
issuer's computed CAChain field, when non-empty.`,
}
fields["leaf_not_after_behavior"] = &framework.FieldSchema{
Type: framework.TypeString,
Description: `Behavior of leaf's NotAfter fields: "err" to error
if the computed NotAfter date exceeds that of this issuer; "truncate" to
silently truncate to that of this issuer; or "permit" to allow this
issuance to succeed (with NotAfter exceeding that of an issuer). Note that
not all values will results in certificates that can be validated through
the entire validity period. It is suggested to use "truncate" for
intermediate CAs and "permit" only for root CAs.`,
Default: "err",
}
fields["usage"] = &framework.FieldSchema{
Type: framework.TypeCommaStringSlice,
Description: `Comma-separated list (or string slice) of usages for
this issuer; valid values are "read-only", "issuing-certificates",
"crl-signing", and "ocsp-signing". Multiple values may be specified. Read-only
is implicit and always set.`,
Default: []string{"read-only", "issuing-certificates", "crl-signing", "ocsp-signing"},
}
fields["revocation_signature_algorithm"] = &framework.FieldSchema{
Type: framework.TypeString,
Description: `Which x509.SignatureAlgorithm name to use for
signing CRLs. This parameter allows differentiation between PKCS#1v1.5
and PSS keys and choice of signature hash algorithm. The default (empty
string) value is for Go to select the signature algorithm. This can fail
if the underlying key does not support the requested signature algorithm,
which may not be known at modification time (such as with PKCS#11 managed
RSA keys).`,
Default: "",
}
fields["issuing_certificates"] = &framework.FieldSchema{
Type: framework.TypeCommaStringSlice,
Description: `Comma-separated list of URLs to be used
for the issuing certificate attribute. See also RFC 5280 Section 4.2.2.1.`,
}
fields["crl_distribution_points"] = &framework.FieldSchema{
Type: framework.TypeCommaStringSlice,
Description: `Comma-separated list of URLs to be used
for the CRL distribution points attribute. See also RFC 5280 Section 4.2.1.13.`,
}
fields["ocsp_servers"] = &framework.FieldSchema{
Type: framework.TypeCommaStringSlice,
Description: `Comma-separated list of URLs to be used
for the OCSP servers attribute. See also RFC 5280 Section 4.2.2.1.`,
}
fields["enable_aia_url_templating"] = &framework.FieldSchema{
Type: framework.TypeBool,
Description: `Whether or not to enabling templating of the
above AIA fields. When templating is enabled the special values '{{issuer_id}}',
'{{cluster_path}}', '{{cluster_aia_path}}' are available, but the addresses are
not checked for URL validity until issuance time. Using '{{cluster_path}}'
requires /config/cluster's 'path' member to be set on all PR Secondary clusters
and using '{{cluster_aia_path}}' requires /config/cluster's 'aia_path' member
to be set on all PR secondary clusters.`,
Default: false,
}
updateIssuerSchema := map[int][]framework.Response{
http.StatusOK: {{
Description: "OK",
Fields: map[string]*framework.FieldSchema{
"issuer_id": {
Type: framework.TypeString,
Description: `Issuer Id`,
Required: false,
},
"issuer_name": {
Type: framework.TypeString,
Description: `Issuer Name`,
Required: false,
},
"key_id": {
Type: framework.TypeString,
Description: `Key Id`,
Required: false,
},
"certificate": {
Type: framework.TypeString,
Description: `Certificate`,
Required: false,
},
"manual_chain": {
Type: framework.TypeStringSlice,
Description: `Manual Chain`,
Required: false,
},
"ca_chain": {
Type: framework.TypeStringSlice,
Description: `CA Chain`,
Required: false,
},
"leaf_not_after_behavior": {
Type: framework.TypeString,
Description: `Leaf Not After Behavior`,
Required: false,
},
"usage": {
Type: framework.TypeString,
Description: `Usage`,
Required: false,
},
"revocation_signature_algorithm": {
Type: framework.TypeString,
Description: `Revocation Signature Alogrithm`,
Required: false,
},
"revoked": {
Type: framework.TypeBool,
Description: `Revoked`,
Required: false,
},
"revocation_time": {
Type: framework.TypeInt,
Required: false,
},
"revocation_time_rfc3339": {
Type: framework.TypeString,
Required: false,
},
"issuing_certificates": {
Type: framework.TypeStringSlice,
Description: `Issuing Certificates`,
Required: false,
},
"crl_distribution_points": {
Type: framework.TypeStringSlice,
Description: `CRL Distribution Points`,
Required: false,
},
"ocsp_servers": {
Type: framework.TypeStringSlice,
Description: `OCSP Servers`,
Required: false,
},
"enable_aia_url_templating": {
Type: framework.TypeBool,
Description: `Whether or not templating is enabled for AIA fields`,
Required: false,
},
},
}},
}
return &framework.Path{
// Returns a JSON entry.
Pattern: pattern,
DisplayAttrs: displayAttrs,
Fields: fields,
Operations: map[logical.Operation]framework.OperationHandler{
logical.ReadOperation: &framework.PathOperation{
Callback: b.pathGetIssuer,
Responses: updateIssuerSchema,
},
logical.UpdateOperation: &framework.PathOperation{
Callback: b.pathUpdateIssuer,
Responses: updateIssuerSchema,
// Read more about why these flags are set in backend.go.
ForwardPerformanceStandby: true,
ForwardPerformanceSecondary: true,
},
logical.DeleteOperation: &framework.PathOperation{
Callback: b.pathDeleteIssuer,
Responses: map[int][]framework.Response{
http.StatusNoContent: {{
Description: "No Content",
}},
},
// Read more about why these flags are set in backend.go.
ForwardPerformanceStandby: true,
ForwardPerformanceSecondary: true,
},
logical.PatchOperation: &framework.PathOperation{
Callback: b.pathPatchIssuer,
Responses: updateIssuerSchema,
// Read more about why these flags are set in backend.go.
ForwardPerformanceStandby: true,
ForwardPerformanceSecondary: true,
},
},
HelpSynopsis: pathGetIssuerHelpSyn,
HelpDescription: pathGetIssuerHelpDesc,
}
}
func buildPathGetIssuer(b *backend, pattern string, displayAttrs *framework.DisplayAttributes) *framework.Path {
fields := map[string]*framework.FieldSchema{}
fields = addIssuerRefField(fields)
getIssuerSchema := map[int][]framework.Response{
http.StatusNotModified: {{
Description: "Not Modified",
}},
http.StatusOK: {{
Description: "OK",
Fields: map[string]*framework.FieldSchema{
"issuer_id": {
Type: framework.TypeString,
Description: `Issuer Id`,
Required: true,
},
"issuer_name": {
Type: framework.TypeString,
Description: `Issuer Name`,
Required: true,
},
"certificate": {
Type: framework.TypeString,
Description: `Certificate`,
Required: true,
},
"ca_chain": {
Type: framework.TypeStringSlice,
Description: `CA Chain`,
Required: true,
},
},
}},
}
return &framework.Path{
// Returns a JSON entry.
Pattern: pattern,
DisplayAttrs: displayAttrs,
Fields: fields,
Operations: map[logical.Operation]framework.OperationHandler{
logical.ReadOperation: &framework.PathOperation{
Callback: b.pathGetIssuer,
Responses: getIssuerSchema,
},
},
HelpSynopsis: pathGetIssuerHelpSyn,
HelpDescription: pathGetIssuerHelpDesc,
}
}
func (b *backend) pathGetIssuer(ctx context.Context, req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
// Handle raw issuers first.
if strings.HasSuffix(req.Path, "/der") || strings.HasSuffix(req.Path, "/pem") || strings.HasSuffix(req.Path, "/json") {
return b.pathGetRawIssuer(ctx, req, data)
}
if b.useLegacyBundleCaStorage() {
return logical.ErrorResponse("Can not get issuer until migration has completed"), nil
}
issuerName := getIssuerRef(data)
if len(issuerName) == 0 {
return logical.ErrorResponse("missing issuer reference"), nil
}
sc := b.makeStorageContext(ctx, req.Storage)
ref, err := sc.resolveIssuerReference(issuerName)
if err != nil {
return nil, err
}
if ref == "" {
return logical.ErrorResponse("unable to resolve issuer id for reference: " + issuerName), nil
}
issuer, err := sc.fetchIssuerById(ref)
if err != nil {
return nil, err
}
return respondReadIssuer(issuer)
}
func respondReadIssuer(issuer *issuerEntry) (*logical.Response, error) {
var respManualChain []string
for _, entity := range issuer.ManualChain {
respManualChain = append(respManualChain, string(entity))
}
revSigAlgStr, present := certutil.InvSignatureAlgorithmNames[issuer.RevocationSigAlg]
if !present {
revSigAlgStr = issuer.RevocationSigAlg.String()
if issuer.RevocationSigAlg == x509.UnknownSignatureAlgorithm {
revSigAlgStr = ""
}
}
data := map[string]interface{}{
"issuer_id": issuer.ID,
"issuer_name": issuer.Name,
"key_id": issuer.KeyID,
"certificate": issuer.Certificate,
"manual_chain": respManualChain,
"ca_chain": issuer.CAChain,
"leaf_not_after_behavior": issuer.LeafNotAfterBehavior.String(),
"usage": issuer.Usage.Names(),
"revocation_signature_algorithm": revSigAlgStr,
"revoked": issuer.Revoked,
"issuing_certificates": []string{},
"crl_distribution_points": []string{},
"ocsp_servers": []string{},
}
if issuer.Revoked {
data["revocation_time"] = issuer.RevocationTime
data["revocation_time_rfc3339"] = issuer.RevocationTimeUTC.Format(time.RFC3339Nano)
}
if issuer.AIAURIs != nil {
data["issuing_certificates"] = issuer.AIAURIs.IssuingCertificates
data["crl_distribution_points"] = issuer.AIAURIs.CRLDistributionPoints
data["ocsp_servers"] = issuer.AIAURIs.OCSPServers
data["enable_aia_url_templating"] = issuer.AIAURIs.EnableTemplating
}
response := &logical.Response{
Data: data,
}
if issuer.RevocationSigAlg == x509.SHA256WithRSAPSS || issuer.RevocationSigAlg == x509.SHA384WithRSAPSS || issuer.RevocationSigAlg == x509.SHA512WithRSAPSS {
response.AddWarning("Issuer uses a PSS Revocation Signature Algorithm. This algorithm will be downgraded to PKCS#1v1.5 signature scheme on OCSP responses, due to limitations in the OCSP library.")
}
return response, nil
}
func (b *backend) pathUpdateIssuer(ctx context.Context, req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
// Since we're planning on updating issuers here, grab the lock so we've
// got a consistent view.
b.issuersLock.Lock()
defer b.issuersLock.Unlock()
if b.useLegacyBundleCaStorage() {
return logical.ErrorResponse("Can not update issuer until migration has completed"), nil
}
issuerName := getIssuerRef(data)
if len(issuerName) == 0 {
return logical.ErrorResponse("missing issuer reference"), nil
}
sc := b.makeStorageContext(ctx, req.Storage)
ref, err := sc.resolveIssuerReference(issuerName)
if err != nil {
return nil, err
}
if ref == "" {
return logical.ErrorResponse("unable to resolve issuer id for reference: " + issuerName), nil
}
issuer, err := sc.fetchIssuerById(ref)
if err != nil {
return nil, err
}
newName, err := getIssuerName(sc, data)
if err != nil && err != errIssuerNameInUse {
// If the error is name already in use, and the new name is the
// old name for this issuer, we're not actually updating the
// issuer name (or causing a conflict) -- so don't err out. Other
// errs should still be surfaced, however.
return logical.ErrorResponse(err.Error()), nil
}
if err == errIssuerNameInUse && issuer.Name != newName {
// When the new name is in use but isn't this name, throw an error.
return logical.ErrorResponse(err.Error()), nil
}
if len(newName) > 0 && !nameMatcher.MatchString(newName) {
return logical.ErrorResponse("new key name outside of valid character limits"), nil
}
newPath := data.Get("manual_chain").([]string)
rawLeafBehavior := data.Get("leaf_not_after_behavior").(string)
var newLeafBehavior certutil.NotAfterBehavior
switch rawLeafBehavior {
case "err":
newLeafBehavior = certutil.ErrNotAfterBehavior
case "truncate":
newLeafBehavior = certutil.TruncateNotAfterBehavior
case "permit":
newLeafBehavior = certutil.PermitNotAfterBehavior
default:
return logical.ErrorResponse("Unknown value for field `leaf_not_after_behavior`. Possible values are `err`, `truncate`, and `permit`."), nil
}
rawUsage := data.Get("usage").([]string)
newUsage, err := NewIssuerUsageFromNames(rawUsage)
if err != nil {
return logical.ErrorResponse(fmt.Sprintf("Unable to parse specified usages: %v - valid values are %v", rawUsage, AllIssuerUsages.Names())), nil
}
// Revocation signature algorithm changes
revSigAlgStr := data.Get("revocation_signature_algorithm").(string)
revSigAlg, present := certutil.SignatureAlgorithmNames[strings.ToLower(revSigAlgStr)]
if !present && revSigAlgStr != "" {
var knownAlgos []string
for algoName := range certutil.SignatureAlgorithmNames {
knownAlgos = append(knownAlgos, algoName)
}
return logical.ErrorResponse(fmt.Sprintf("Unknown signature algorithm value: %v - valid values are %v", revSigAlg, strings.Join(knownAlgos, ", "))), nil
} else if revSigAlgStr == "" {
revSigAlg = x509.UnknownSignatureAlgorithm
}
if err := issuer.CanMaybeSignWithAlgo(revSigAlg); err != nil {
return nil, err
}
// AIA access changes
enableTemplating := data.Get("enable_aia_url_templating").(bool)
issuerCertificates := data.Get("issuing_certificates").([]string)
if badURL := validateURLs(issuerCertificates); !enableTemplating && badURL != "" {
return logical.ErrorResponse(fmt.Sprintf("invalid URL found in Authority Information Access (AIA) parameter issuing_certificates: %s", badURL)), nil
}
crlDistributionPoints := data.Get("crl_distribution_points").([]string)
if badURL := validateURLs(crlDistributionPoints); !enableTemplating && badURL != "" {
return logical.ErrorResponse(fmt.Sprintf("invalid URL found in Authority Information Access (AIA) parameter crl_distribution_points: %s", badURL)), nil
}
ocspServers := data.Get("ocsp_servers").([]string)
if badURL := validateURLs(ocspServers); !enableTemplating && badURL != "" {
return logical.ErrorResponse(fmt.Sprintf("invalid URL found in Authority Information Access (AIA) parameter ocsp_servers: %s", badURL)), nil
}
modified := false
var oldName string
if newName != issuer.Name {
oldName = issuer.Name
issuer.Name = newName
issuer.LastModified = time.Now().UTC()
// See note in updateDefaultIssuerId about why this is necessary.
b.crlBuilder.invalidateCRLBuildTime()
b.crlBuilder.flushCRLBuildTimeInvalidation(sc)
modified = true
}
if newLeafBehavior != issuer.LeafNotAfterBehavior {
issuer.LeafNotAfterBehavior = newLeafBehavior
modified = true
}
if newUsage != issuer.Usage {
if issuer.Revoked && newUsage.HasUsage(IssuanceUsage) {
// Forbid allowing cert signing on its usage.
return logical.ErrorResponse("This issuer was revoked; unable to modify its usage to include certificate signing again. Reissue this certificate (preferably with a new key) and modify that entry instead."), nil
}
// Ensure we deny adding CRL usage if the bits are missing from the
// cert itself.
cert, err := issuer.GetCertificate()
if err != nil {
return nil, fmt.Errorf("unable to parse issuer's certificate: %w", err)
}
if (cert.KeyUsage&x509.KeyUsageCRLSign) == 0 && newUsage.HasUsage(CRLSigningUsage) {
return logical.ErrorResponse("This issuer's underlying certificate lacks the CRLSign KeyUsage value; unable to set CRLSigningUsage on this issuer as a result."), nil
}
issuer.Usage = newUsage
modified = true
}
if revSigAlg != issuer.RevocationSigAlg {
issuer.RevocationSigAlg = revSigAlg
modified = true
}
if issuer.AIAURIs == nil && (len(issuerCertificates) > 0 || len(crlDistributionPoints) > 0 || len(ocspServers) > 0) {
issuer.AIAURIs = &aiaConfigEntry{}
}
if issuer.AIAURIs != nil {
// Associative mapping from data source to destination on the
// backing issuer object.
type aiaPair struct {
Source *[]string
Dest *[]string
}
pairs := []aiaPair{
{
Source: &issuerCertificates,
Dest: &issuer.AIAURIs.IssuingCertificates,
},
{
Source: &crlDistributionPoints,
Dest: &issuer.AIAURIs.CRLDistributionPoints,
},
{
Source: &ocspServers,
Dest: &issuer.AIAURIs.OCSPServers,
},
}
// For each pair, if it is different on the object, update it.
for _, pair := range pairs {
if isStringArrayDifferent(*pair.Source, *pair.Dest) {
*pair.Dest = *pair.Source
modified = true
}
}
if enableTemplating != issuer.AIAURIs.EnableTemplating {
issuer.AIAURIs.EnableTemplating = enableTemplating
modified = true
}
// If no AIA URLs exist on the issuer, set the AIA URLs entry to nil
// to ease usage later.
if len(issuer.AIAURIs.IssuingCertificates) == 0 && len(issuer.AIAURIs.CRLDistributionPoints) == 0 && len(issuer.AIAURIs.OCSPServers) == 0 {
issuer.AIAURIs = nil
}
}
// Updating the chain should be the last modification as there's a chance
// it'll write it out to disk for us. We'd hate to then modify the issuer
// again and write it a second time.
var updateChain bool
var constructedChain []issuerID
for index, newPathRef := range newPath {
// Allow self for the first entry.
if index == 0 && newPathRef == "self" {
newPathRef = string(ref)
}
resolvedId, err := sc.resolveIssuerReference(newPathRef)
if err != nil {
return nil, err
}
if index == 0 && resolvedId != ref {
return logical.ErrorResponse(fmt.Sprintf("expected first cert in chain to be a self-reference, but was: %v/%v", newPathRef, resolvedId)), nil
}
constructedChain = append(constructedChain, resolvedId)
if len(issuer.ManualChain) < len(constructedChain) || constructedChain[index] != issuer.ManualChain[index] {
updateChain = true
}
}
if len(issuer.ManualChain) != len(constructedChain) {
updateChain = true
}
if updateChain {
issuer.ManualChain = constructedChain
// Building the chain will write the issuer to disk; no need to do it
// twice.
modified = false
err := sc.rebuildIssuersChains(issuer)
if err != nil {
return nil, err
}
}
if modified {
err := sc.writeIssuer(issuer)
if err != nil {
return nil, err
}
}
response, err := respondReadIssuer(issuer)
if newName != oldName {
addWarningOnDereferencing(sc, oldName, response)
}
if issuer.AIAURIs != nil && issuer.AIAURIs.EnableTemplating {
_, aiaErr := issuer.AIAURIs.toURLEntries(sc, issuer.ID)
if aiaErr != nil {
response.AddWarning(fmt.Sprintf("issuance may fail: %v\n\nConsider setting the cluster-local address if it is not already set.", aiaErr))
}
}
return response, err
}
func (b *backend) pathPatchIssuer(ctx context.Context, req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
// Since we're planning on updating issuers here, grab the lock so we've
// got a consistent view.
b.issuersLock.Lock()
defer b.issuersLock.Unlock()
if b.useLegacyBundleCaStorage() {
return logical.ErrorResponse("Can not patch issuer until migration has completed"), nil
}
// First we fetch the issuer
issuerName := getIssuerRef(data)
if len(issuerName) == 0 {
return logical.ErrorResponse("missing issuer reference"), nil
}
sc := b.makeStorageContext(ctx, req.Storage)
ref, err := sc.resolveIssuerReference(issuerName)
if err != nil {
return nil, err
}
if ref == "" {
return logical.ErrorResponse("unable to resolve issuer id for reference: " + issuerName), nil
}
issuer, err := sc.fetchIssuerById(ref)
if err != nil {
return nil, err
}
// Now We are Looking at What (Might) Have Changed
modified := false
// Name Changes First
_, ok := data.GetOk("issuer_name") // Don't check for conflicts if we aren't updating the name
var oldName string
var newName string
if ok {
newName, err = getIssuerName(sc, data)
if err != nil && err != errIssuerNameInUse && err != errIssuerNameIsEmpty {
// If the error is name already in use, and the new name is the
// old name for this issuer, we're not actually updating the
// issuer name (or causing a conflict) -- so don't err out. Other
// errs should still be surfaced, however.
return logical.ErrorResponse(err.Error()), nil
}
if err == errIssuerNameInUse && issuer.Name != newName {
// When the new name is in use but isn't this name, throw an error.
return logical.ErrorResponse(err.Error()), nil
}
if len(newName) > 0 && !nameMatcher.MatchString(newName) {
return logical.ErrorResponse("new key name outside of valid character limits"), nil
}
if newName != issuer.Name {
oldName = issuer.Name
issuer.Name = newName
issuer.LastModified = time.Now().UTC()
// See note in updateDefaultIssuerId about why this is necessary.
b.crlBuilder.invalidateCRLBuildTime()
b.crlBuilder.flushCRLBuildTimeInvalidation(sc)
modified = true
}
}
// Leaf Not After Changes
rawLeafBehaviorData, ok := data.GetOk("leaf_not_after_behavior")
if ok {
rawLeafBehavior := rawLeafBehaviorData.(string)
var newLeafBehavior certutil.NotAfterBehavior
switch rawLeafBehavior {
case "err":
newLeafBehavior = certutil.ErrNotAfterBehavior
case "truncate":
newLeafBehavior = certutil.TruncateNotAfterBehavior
case "permit":
newLeafBehavior = certutil.PermitNotAfterBehavior
default:
return logical.ErrorResponse("Unknown value for field `leaf_not_after_behavior`. Possible values are `err`, `truncate`, and `permit`."), nil
}
if newLeafBehavior != issuer.LeafNotAfterBehavior {
issuer.LeafNotAfterBehavior = newLeafBehavior
modified = true
}
}
// Usage Changes
rawUsageData, ok := data.GetOk("usage")
if ok {
rawUsage := rawUsageData.([]string)
newUsage, err := NewIssuerUsageFromNames(rawUsage)
if err != nil {
return logical.ErrorResponse(fmt.Sprintf("Unable to parse specified usages: %v - valid values are %v", rawUsage, AllIssuerUsages.Names())), nil
}
if newUsage != issuer.Usage {
if issuer.Revoked && newUsage.HasUsage(IssuanceUsage) {
// Forbid allowing cert signing on its usage.
return logical.ErrorResponse("This issuer was revoked; unable to modify its usage to include certificate signing again. Reissue this certificate (preferably with a new key) and modify that entry instead."), nil
}
cert, err := issuer.GetCertificate()
if err != nil {
return nil, fmt.Errorf("unable to parse issuer's certificate: %w", err)
}
if (cert.KeyUsage&x509.KeyUsageCRLSign) == 0 && newUsage.HasUsage(CRLSigningUsage) {
return logical.ErrorResponse("This issuer's underlying certificate lacks the CRLSign KeyUsage value; unable to set CRLSigningUsage on this issuer as a result."), nil
}
issuer.Usage = newUsage
modified = true
}
}
// Revocation signature algorithm changes
rawRevSigAlg, ok := data.GetOk("revocation_signature_algorithm")
if ok {
revSigAlgStr := rawRevSigAlg.(string)
revSigAlg, present := certutil.SignatureAlgorithmNames[strings.ToLower(revSigAlgStr)]
if !present && revSigAlgStr != "" {
var knownAlgos []string
for algoName := range certutil.SignatureAlgorithmNames {
knownAlgos = append(knownAlgos, algoName)
}
return logical.ErrorResponse(fmt.Sprintf("Unknown signature algorithm value: %v - valid values are %v", revSigAlg, strings.Join(knownAlgos, ", "))), nil
} else if revSigAlgStr == "" {
revSigAlg = x509.UnknownSignatureAlgorithm
}
if err := issuer.CanMaybeSignWithAlgo(revSigAlg); err != nil {
return nil, err
}
if revSigAlg != issuer.RevocationSigAlg {
issuer.RevocationSigAlg = revSigAlg
modified = true
}
}
// AIA access changes.
if issuer.AIAURIs == nil {
issuer.AIAURIs = &aiaConfigEntry{}
}
// Associative mapping from data source to destination on the
// backing issuer object. For PATCH requests, we use the source
// data parameter as we still need to validate them and process
// it into a string list.
type aiaPair struct {
Source string
Dest *[]string
}
pairs := []aiaPair{
{
Source: "issuing_certificates",
Dest: &issuer.AIAURIs.IssuingCertificates,
},
{
Source: "crl_distribution_points",
Dest: &issuer.AIAURIs.CRLDistributionPoints,
},
{
Source: "ocsp_servers",
Dest: &issuer.AIAURIs.OCSPServers,
},
}
if enableTemplatingRaw, ok := data.GetOk("enable_aia_url_templating"); ok {
enableTemplating := enableTemplatingRaw.(bool)
if enableTemplating != issuer.AIAURIs.EnableTemplating {
issuer.AIAURIs.EnableTemplating = true
modified = true
}
}
// For each pair, if it is different on the object, update it.
for _, pair := range pairs {
rawURLsValue, ok := data.GetOk(pair.Source)
if ok {
urlsValue := rawURLsValue.([]string)
if badURL := validateURLs(urlsValue); !issuer.AIAURIs.EnableTemplating && badURL != "" {
return logical.ErrorResponse(fmt.Sprintf("invalid URL found in Authority Information Access (AIA) parameter %v: %s", pair.Source, badURL)), nil
}
if isStringArrayDifferent(urlsValue, *pair.Dest) {
modified = true
*pair.Dest = urlsValue
}
}
}
// If no AIA URLs exist on the issuer, set the AIA URLs entry to nil to
// ease usage later.
if len(issuer.AIAURIs.IssuingCertificates) == 0 && len(issuer.AIAURIs.CRLDistributionPoints) == 0 && len(issuer.AIAURIs.OCSPServers) == 0 {
issuer.AIAURIs = nil
}
// Manual Chain Changes
newPathData, ok := data.GetOk("manual_chain")
if ok {
newPath := newPathData.([]string)
var updateChain bool
var constructedChain []issuerID
for index, newPathRef := range newPath {
// Allow self for the first entry.
if index == 0 && newPathRef == "self" {
newPathRef = string(ref)
}
resolvedId, err := sc.resolveIssuerReference(newPathRef)
if err != nil {
return nil, err
}
if index == 0 && resolvedId != ref {
return logical.ErrorResponse(fmt.Sprintf("expected first cert in chain to be a self-reference, but was: %v/%v", newPathRef, resolvedId)), nil
}
constructedChain = append(constructedChain, resolvedId)
if len(issuer.ManualChain) < len(constructedChain) || constructedChain[index] != issuer.ManualChain[index] {
updateChain = true
}
}
if len(issuer.ManualChain) != len(constructedChain) {
updateChain = true
}
if updateChain {
issuer.ManualChain = constructedChain
// Building the chain will write the issuer to disk; no need to do it
// twice.
modified = false
err := sc.rebuildIssuersChains(issuer)
if err != nil {
return nil, err
}
}
}
if modified {
err := sc.writeIssuer(issuer)
if err != nil {
return nil, err
}
}
response, err := respondReadIssuer(issuer)
if newName != oldName {
addWarningOnDereferencing(sc, oldName, response)
}
if issuer.AIAURIs != nil && issuer.AIAURIs.EnableTemplating {
_, aiaErr := issuer.AIAURIs.toURLEntries(sc, issuer.ID)
if aiaErr != nil {
response.AddWarning(fmt.Sprintf("issuance may fail: %v\n\nConsider setting the cluster-local address if it is not already set.", aiaErr))
}
}
return response, err
}
func (b *backend) pathGetRawIssuer(ctx context.Context, req *logical.Request, data *framework.FieldData) (*logical.Response, error) {
if b.useLegacyBundleCaStorage() {
return logical.ErrorResponse("Can not get issuer until migration has completed"), nil
}
issuerName := getIssuerRef(data)
if len(issuerName) == 0 {
return logical.ErrorResponse("missing issuer reference"), nil
}
sc := b.makeStorageContext(ctx, req.Storage)
ref, err := sc.resolveIssuerReference(issuerName)
if err != nil {