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render.go
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render.go
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// Copyright 2020 Google LLC
//
// 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 realmkeys
import (
"context"
"fmt"
"net/http"
"github.com/google/exposure-notifications-verification-server/pkg/controller"
"github.com/google/exposure-notifications-verification-server/pkg/database"
"github.com/google/exposure-notifications-verification-server/pkg/keyutils"
)
func (c *Controller) redirectShow(ctx context.Context, w http.ResponseWriter, r *http.Request) {
http.Redirect(w, r, "/realm/keys", http.StatusSeeOther)
}
func (c *Controller) renderShow(ctx context.Context, w http.ResponseWriter, r *http.Request, realm *database.Realm) {
m := controller.TemplateMapFromContext(ctx)
m.Title("Realm keys")
m["realm"] = realm
m["supportsPerRealmSigning"] = c.db.SupportsPerRealmSigning()
if c.db.SupportsPerRealmSigning() {
keys, err := realm.ListSigningKeys(c.db)
if err != nil {
controller.InternalError(w, r, c.h, err)
return
}
m["realmKeys"] = keys
maximumKeyVersions := c.db.MaxKeyVersions()
m["maximumKeyVersions"] = maximumKeyVersions
publicKeys := make(map[string]string)
// Go through and load / parse all of the public keys for the realm.
for _, k := range keys {
if k.Active {
m["activeRealmKey"] = k.GetKID()
m["activePublicKey"] = ""
}
pk, err := c.publicKeyCache.GetPublicKey(ctx, k.KeyID, c.db.KeyManager())
if err != nil {
publicKeys[k.GetKID()] = fmt.Errorf("error loading public key: %w", err).Error()
} else {
pem, err := keyutils.EncodePublicKey(pk)
if err != nil {
publicKeys[k.GetKID()] = fmt.Errorf("error decoding public key: %w", err).Error()
} else {
publicKeys[k.GetKID()] = pem
if k.Active {
m["activePublicKey"] = pem
}
}
}
}
m["publicKeys"] = publicKeys
}
// Fallback to the system signing keys and present them in the UI.
if !realm.UseRealmCertificateKey {
signing := c.config.CertificateSigning
m["systemCertIssuer"] = signing.CertificateIssuer
m["systemCertAudience"] = signing.CertificateAudience
m["systemCertDuration"] = signing.CertificateDuration
m["systemCertKeyID"] = signing.CertificateSigningKeyID
// Download and PEM encode the public key.
publicKey, err := c.publicKeyCache.GetPublicKey(ctx, signing.CertificateSigningKey, c.systemCertificateKeyManager)
if err != nil {
m["systemCertPublicKey"] = ""
m["systemCertPublicKeyError"] = fmt.Sprintf("Failed to load public key: %v", err)
} else {
pem, err := keyutils.EncodePublicKey(publicKey)
if err != nil {
m["systemCertPublicKey"] = ""
m["systemCertPublicKeyError"] = fmt.Sprintf("Failed to encode public key: %v", err)
} else {
m["systemCertPublicKey"] = pem
}
}
}
c.h.RenderHTML(w, "realmadmin/keys", m)
}