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dendrite/serverkeyapi/serverkeyapi.go
Neil Alexander 7d6461dd3c
Server key component (#1050)
* Server key API (works for monolith but not for polylith yet)

* Re-enable caching on server key API component

* Groundwork for HTTP APIs for server key API

* Hopefully implement HTTP for server key API

* Simplify public key request marshalling from map keys

* Update gomatrixserverlib

* go mod tidy

* Common -> internal

* remove keyring.go

* Update Docker Hub for server key API

* YAML is funny about indentation

* Wire in new server key API into hybrid monolith mode

* Create maps

* Route server key API endpoints on internal API mux

* Fix server key API URLs

* Add fetcher behaviour into server key API implementation

* Return error if we failed to fetch some keys

* Return results anyway

* Move things about a bit

* Remove unused code

* Fix comments, don't use federation sender URL in polylith mode

* Add server_key_api to sample config

* Review comments

* HTTP API to cache keys that have been requested

* Overwrite server_key_api listen in monolith hybrid mode
2020-05-27 10:19:24 +01:00

83 lines
2.4 KiB
Go

package serverkeyapi
import (
"crypto/ed25519"
"encoding/base64"
"github.com/matrix-org/dendrite/internal/basecomponent"
"github.com/matrix-org/dendrite/serverkeyapi/api"
"github.com/matrix-org/dendrite/serverkeyapi/internal"
"github.com/matrix-org/dendrite/serverkeyapi/storage"
"github.com/matrix-org/dendrite/serverkeyapi/storage/cache"
"github.com/matrix-org/gomatrixserverlib"
"github.com/sirupsen/logrus"
)
func SetupServerKeyAPIComponent(
base *basecomponent.BaseDendrite,
fedClient *gomatrixserverlib.FederationClient,
) api.ServerKeyInternalAPI {
innerDB, err := storage.NewDatabase(
string(base.Cfg.Database.ServerKey),
base.Cfg.DbProperties(),
base.Cfg.Matrix.ServerName,
base.Cfg.Matrix.PrivateKey.Public().(ed25519.PublicKey),
base.Cfg.Matrix.KeyID,
)
if err != nil {
logrus.WithError(err).Panicf("failed to connect to server key database")
}
serverKeyDB, err := cache.NewKeyDatabase(innerDB, base.ImmutableCache)
if err != nil {
logrus.WithError(err).Panicf("failed to set up caching wrapper for server key database")
}
internalAPI := internal.ServerKeyAPI{
ImmutableCache: base.ImmutableCache,
FedClient: fedClient,
OurKeyRing: gomatrixserverlib.KeyRing{
KeyFetchers: []gomatrixserverlib.KeyFetcher{
&gomatrixserverlib.DirectKeyFetcher{
Client: fedClient.Client,
},
},
KeyDatabase: serverKeyDB,
},
}
var b64e = base64.StdEncoding.WithPadding(base64.NoPadding)
for _, ps := range base.Cfg.Matrix.KeyPerspectives {
perspective := &gomatrixserverlib.PerspectiveKeyFetcher{
PerspectiveServerName: ps.ServerName,
PerspectiveServerKeys: map[gomatrixserverlib.KeyID]ed25519.PublicKey{},
Client: fedClient.Client,
}
for _, key := range ps.Keys {
rawkey, err := b64e.DecodeString(key.PublicKey)
if err != nil {
logrus.WithError(err).WithFields(logrus.Fields{
"server_name": ps.ServerName,
"public_key": key.PublicKey,
}).Warn("Couldn't parse perspective key")
continue
}
perspective.PerspectiveServerKeys[key.KeyID] = rawkey
}
internalAPI.OurKeyRing.KeyFetchers = append(
internalAPI.OurKeyRing.KeyFetchers,
perspective,
)
logrus.WithFields(logrus.Fields{
"server_name": ps.ServerName,
"num_public_keys": len(ps.Keys),
}).Info("Enabled perspective key fetcher")
}
internalAPI.SetupHTTP(base.InternalAPIMux)
return &internalAPI
}