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Merge pull request #3509 from ipfs/fix/namesys/dht-cache-panic

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namesys: fix case where there is no cache
This commit is contained in:
Jeromy Johnson
2016-12-15 16:41:15 -08:00
committed by GitHub
parent 9e8d108a8c c1d5a60b66
commit f6948bbec4
2 changed files with 31 additions and 5 deletions
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15
namesys/namesys.go
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@ -107,6 +107,16 @@ func (ns *mpns) PublishWithEOL(ctx context.Context, name ci.PrivKey, value path.
} }
func (ns *mpns) addToDHTCache(key ci.PrivKey, value path.Path, eol time.Time) { func (ns *mpns) addToDHTCache(key ci.PrivKey, value path.Path, eol time.Time) {
rr, ok := ns.resolvers["dht"].(*routingResolver)
if !ok {
// should never happen, purely for sanity
log.Panicf("unexpected type %T as DHT resolver.", ns.resolvers["dht"])
}
if rr.cache == nil {
// resolver has no caching
return
}
var err error var err error
value, err = path.ParsePath(value.String()) value, err = path.ParsePath(value.String())
if err != nil { if err != nil {
@ -120,11 +130,6 @@ func (ns *mpns) addToDHTCache(key ci.PrivKey, value path.Path, eol time.Time) {
return return
} }
rr, ok := ns.resolvers["dht"].(*routingResolver)
if !ok {
// should never happen, purely for sanity
log.Panicf("unexpected type %T as DHT resolver.", ns.resolvers["dht"])
}
if time.Now().Add(DefaultResolverCacheTTL).Before(eol) { if time.Now().Add(DefaultResolverCacheTTL).Before(eol) {
eol = time.Now().Add(DefaultResolverCacheTTL) eol = time.Now().Add(DefaultResolverCacheTTL)
} }

21
namesys/namesys_test.go
View File

@ -7,6 +7,11 @@ import (
context "context" context "context"
path "github.com/ipfs/go-ipfs/path" path "github.com/ipfs/go-ipfs/path"
offroute "github.com/ipfs/go-ipfs/routing/offline"
"github.com/ipfs/go-ipfs/unixfs"
ds "gx/ipfs/QmRWDav6mzWseLWeYfVd5fvUKiVe9xNH29YfMF438fG364/go-datastore"
ci "gx/ipfs/QmfWDLQjGjVe4fr5CoztYW2DYYjRysMJrFe1RCsXLPTf46/go-libp2p-crypto"
) )
type mockResolver struct { type mockResolver struct {
@ -69,3 +74,19 @@ func TestNamesysResolution(t *testing.T) {
testResolution(t, r, "/ipns/QmY3hE8xgFCjGcz6PHgnvJz5HZi1BaKRfPkn1ghZUcYMjD", 2, "/ipns/QmbCMUZw6JFeZ7Wp9jkzbye3Fzp2GGcPgC3nmeUjfVF87n", ErrResolveRecursion) testResolution(t, r, "/ipns/QmY3hE8xgFCjGcz6PHgnvJz5HZi1BaKRfPkn1ghZUcYMjD", 2, "/ipns/QmbCMUZw6JFeZ7Wp9jkzbye3Fzp2GGcPgC3nmeUjfVF87n", ErrResolveRecursion)
testResolution(t, r, "/ipns/QmY3hE8xgFCjGcz6PHgnvJz5HZi1BaKRfPkn1ghZUcYMjD", 3, "/ipns/QmatmE9msSfkKxoffpHwNLNKgwZG8eT9Bud6YoPab52vpy", ErrResolveRecursion) testResolution(t, r, "/ipns/QmY3hE8xgFCjGcz6PHgnvJz5HZi1BaKRfPkn1ghZUcYMjD", 3, "/ipns/QmatmE9msSfkKxoffpHwNLNKgwZG8eT9Bud6YoPab52vpy", ErrResolveRecursion)
} }
func TestPublishWithCache0(t *testing.T) {
dst := ds.NewMapDatastore()
priv, _, err := ci.GenerateKeyPair(ci.RSA, 1024)
if err != nil {
t.Fatal(err)
}
routing := offroute.NewOfflineRouter(dst, priv)
nsys := NewNameSystem(routing, dst, 0)
p, err := path.ParsePath(unixfs.EmptyDirNode().Cid().String())
if err != nil {
t.Fatal(err)
}
nsys.Publish(context.Background(), priv, p)
}