make ignore_validity an option for repo

Author: tianyuan129

repo/config.go

@@ -17,6 +17,8 @@ type Config struct {
 	KeyChainUri string `json:"keychain"`
 	// List of trust anchor full names.
 	TrustAnchors []string `json:"trust_anchors"`
+	// IgnoreValidity skips validity period checks when fetching remote data (e.g. SVS snapshots).
+	IgnoreValidity bool `json:"ignore_validity"`
 
 	// NameN is the parsed name of the repo service.
 	NameN enc.Name

repo/repo.sample.yml

@@ -9,3 +9,5 @@ repo:
   # [required] List of full names of all trust anchors
   trust_anchors:
     - "/ndn/KEY/%27%C4%B2%2A%9F%7B%81%27/ndn/v=1651246789556"
+  # [optional] If true, skip certificate validity checks when consuming data (e.g. SVS snapshots)
+  ignore_validity: false

repo/repo_svs.go

@@ -11,6 +11,7 @@ import (
 	spec "github.com/named-data/ndnd/std/ndn/spec_2022"
 	"github.com/named-data/ndnd/std/ndn/svs_ps"
 	ndn_sync "github.com/named-data/ndnd/std/sync"
+	"github.com/named-data/ndnd/std/types/optional"
 )
 
 type RepoSvs struct {
@@ -49,9 +50,10 @@ func (r *RepoSvs) Start() (err error) {
 		}
 
 		snapshot = &ndn_sync.SnapshotNodeHistory{
-			Client:    r.client,
-			Threshold: r.cmd.HistorySnapshot.Threshold,
-			IsRepo:    true,
+			Client:         r.client,
+			Threshold:      r.cmd.HistorySnapshot.Threshold,
+			IsRepo:         true,
+			IgnoreValidity: optional.Some(r.config.IgnoreValidity),
 		}
 	}
 
@@ -72,6 +74,7 @@ func (r *RepoSvs) Start() (err error) {
 			SuppressionPeriod: 500 * time.Millisecond,
 			PeriodicTimeout:   365 * 24 * time.Hour, // basically never
 			Passive:           true,
+			IgnoreValidity:    optional.Some(r.config.IgnoreValidity),
 		},
 		Snapshot:        snapshot,
 		MulticastPrefix: multicastPrefix,