mirror of
https://github.com/hanzozt/zt.git
synced 2026-11-02 11:38:22 +00:00
Andrew Martinez
353cf93905
- fixes 500 internal error on MFA enrllment in HA deployments - fixes HA API Session Certs not working in HA - adds spiffehlp module to common - adds tests api session certs w/ spiffe id - adds tests for SPIFFE IDs in API Session Certs - adds tests for ext jwt + cert auth
91 lines
3.1 KiB
Go
91 lines
3.1 KiB
Go
/*
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Copyright NetFoundry Inc.
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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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https://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package spiffehlp
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import (
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"crypto/tls"
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"crypto/x509"
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"fmt"
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"github.com/pkg/errors"
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"net/url"
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)
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// GetSpiffeIdFromCertChain cycles through a slice of certificates that goes from leaf up CAs. Each certificate
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// must contain 0 or 1 spiffe:// URI SAN. The first encountered SPIFFE id looking up the chain back to the root CA is returned.
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// If no SPIFFE id is encountered, nil is returned. Errors are returned for parsing and processing errors only.
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func GetSpiffeIdFromCertChain(certs []*x509.Certificate) (*url.URL, error) {
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var spiffeId *url.URL
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for _, cert := range certs {
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var err error
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spiffeId, err = GetSpiffeIdFromCert(cert)
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if err != nil {
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return nil, fmt.Errorf("failed to determine SPIFFE ID from x509 certificate chain: %w", err)
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}
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if spiffeId != nil {
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return spiffeId, nil
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}
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}
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return nil, errors.New("failed to determine SPIFFE ID, no spiffe:// URI SANs found in x509 certificate chain")
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}
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// GetSpiffeIdFromTlsCertChain will search a tls certificate chain for a trust domain encoded as a spiffe:// URI SAN.
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// Each certificate must contain 0 or 1 spiffe:// URI SAN. The first SPIFFE id looking up the chain is returned. If
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// no SPIFFE id is encountered, nil is returned. Errors are returned for parsing and processing errors only.
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func GetSpiffeIdFromTlsCertChain(tlsCerts []*tls.Certificate) (*url.URL, error) {
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for _, tlsCert := range tlsCerts {
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for i, rawCert := range tlsCert.Certificate {
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cert, err := x509.ParseCertificate(rawCert)
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if err != nil {
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return nil, fmt.Errorf("failed to parse TLS cert at index [%d]: %w", i, err)
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}
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spiffeId, err := GetSpiffeIdFromCert(cert)
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if err != nil {
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return nil, fmt.Errorf("failed to determine SPIFFE ID from TLS cert at index [%d]: %w", i, err)
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}
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if spiffeId != nil {
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return spiffeId, nil
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}
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}
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}
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return nil, nil
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}
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// GetSpiffeIdFromCert will search a x509 certificate for a trust domain encoded as a spiffe:// URI SAN.
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// Each certificate must contain 0 or 1 spiffe:// URI SAN. The first SPIFFE id looking up the chain is returned. If
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// no SPIFFE id is encountered, nil is returned. Errors are returned for parsing and processing errors only.
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func GetSpiffeIdFromCert(cert *x509.Certificate) (*url.URL, error) {
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var spiffeId *url.URL
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for _, uriSan := range cert.URIs {
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if uriSan.Scheme == "spiffe" {
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if spiffeId != nil {
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return nil, fmt.Errorf("multiple URI SAN spiffe:// ids encountered, must only have one, encountered at least two: [%s] and [%s]", spiffeId.String(), uriSan.String())
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}
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spiffeId = uriSan
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}
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}
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return spiffeId, nil
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}
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