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Introduce type alias CABundleHash for the hash of a CA bundle ([32]byte)

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Co-authored-by: Ryan Richard <richardry@vmware.com>
Co-authored-by: Ashish Amarnath <ashish.amarnath@broadcom.com>
This commit is contained in:
Joshua Casey
2024-08-05 11:32:20 -07:00
committed by Ryan Richard
co-authored by Ryan Richard Ashish Amarnath
parent 99cfc4fbce
commit a888083c50
15 changed files with 185 additions and 179 deletions
Download Patch File Download Diff File Expand all files Collapse all files
internal/controller/supervisorconfig/githubupstreamwatcher/github_upstream_watcher.go
+16 -21
View File
@@ -6,9 +6,7 @@ package githubupstreamwatcher
import (
"context"
"crypto/sha256"
"crypto/tls"
"crypto/x509"
"errors"
"fmt"
"net"
@@ -74,8 +72,8 @@ type UpstreamGitHubIdentityProviderICache interface {
}
type GitHubValidatedAPICacheI interface {
MarkAsValidated(address string, caBundlePEM []byte)
IsValid(address string, caBundlePEM []byte) bool
MarkAsValidated(address string, caBundleHash tlsconfigutil.CABundleHash)
IsValid(address string, caBundleHash tlsconfigutil.CABundleHash) bool
}
type GitHubValidatedAPICache struct {
@@ -83,24 +81,24 @@ type GitHubValidatedAPICache struct {
}
type GitHubValidatedAPICacheKey struct {
address string
caBundlePEMSHA256 [32]byte
address string
caBundleHash tlsconfigutil.CABundleHash
}
func (g *GitHubValidatedAPICache) MarkAsValidated(address string, caBundlePEM []byte) {
func (g *GitHubValidatedAPICache) MarkAsValidated(address string, caBundleHash tlsconfigutil.CABundleHash) {
key := GitHubValidatedAPICacheKey{
address: address,
caBundlePEMSHA256: sha256.Sum256(caBundlePEM),
address: address,
caBundleHash: caBundleHash,
}
// Existence in the cache means it has been validated.
// The TTL in the cache is not important, it's just a "really long time".
g.cache.Set(key, nil, 365*24*time.Hour)
}
func (g *GitHubValidatedAPICache) IsValid(address string, caBundlePEM []byte) bool {
func (g *GitHubValidatedAPICache) IsValid(address string, caBundleHash tlsconfigutil.CABundleHash) bool {
key := GitHubValidatedAPICacheKey{
address: address,
caBundlePEMSHA256: sha256.Sum256(caBundlePEM),
address: address,
caBundleHash: caBundleHash,
}
_, ok := g.cache.Get(key)
return ok
@@ -335,8 +333,7 @@ func (c *gitHubWatcherController) validateUpstreamAndUpdateConditions(ctx contro
githubConnectionCondition, hostURL, httpClient, githubConnectionErr := c.validateGitHubConnection(
hostPort,
caBundle.PEMBytes(),
caBundle.CertPool(),
caBundle,
hostCondition.Status == metav1.ConditionTrue,
tlsConfigCondition.Status == metav1.ConditionTrue,
)
@@ -425,11 +422,9 @@ func validateHost(gitHubAPIConfig idpv1alpha1.GitHubAPIConfig) (*metav1.Conditio
}, &hostPort
}
// TODO: this should take in a tlsconfigutil.CABundle
func (c *gitHubWatcherController) validateGitHubConnection(
hostPort *endpointaddr.HostPort,
caBundlePEM []byte,
certPool *x509.CertPool,
caBundle *tlsconfigutil.CABundle,
hostConditionOk, tlsConfigConditionOk bool,
) (*metav1.Condition, string, *http.Client, error) {
if !hostConditionOk || !tlsConfigConditionOk {
@@ -443,8 +438,8 @@ func (c *gitHubWatcherController) validateGitHubConnection(
address := hostPort.Endpoint()
if !c.validatedCache.IsValid(address, caBundlePEM) {
conn, tlsDialErr := c.dialFunc("tcp", address, ptls.Default(certPool))
if !c.validatedCache.IsValid(address, caBundle.Hash()) {
conn, tlsDialErr := c.dialFunc("tcp", address, ptls.Default(caBundle.CertPool()))
if tlsDialErr != nil {
return &metav1.Condition{
Type: GitHubConnectionValid,
@@ -457,14 +452,14 @@ func (c *gitHubWatcherController) validateGitHubConnection(
_ = conn.Close()
}
c.validatedCache.MarkAsValidated(address, caBundlePEM)
c.validatedCache.MarkAsValidated(address, caBundle.Hash())
return &metav1.Condition{
Type: GitHubConnectionValid,
Status: metav1.ConditionTrue,
Reason: conditionsutil.ReasonSuccess,
Message: fmt.Sprintf("spec.githubAPI.host (%q) is reachable and TLS verification succeeds", address),
}, fmt.Sprintf("https://%s", address), phttp.Default(certPool), nil
}, fmt.Sprintf("https://%s", address), phttp.Default(caBundle.CertPool()), nil
}
// buildDialErrorMessage standardizes DNS error messages that appear differently on different platforms, so that tests and log grepping is uniform.