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package inthttp
import (
"context"
"errors"
"net/http"
"github.com/matrix-org/dendrite/internal/caching"
"github.com/matrix-org/dendrite/internal/httputil"
"github.com/matrix-org/dendrite/serverkeyapi/api"
"github.com/matrix-org/gomatrixserverlib"
"github.com/opentracing/opentracing-go"
)
// HTTP paths for the internal HTTP APIs
const (
ServerKeyInputPublicKeyPath = "/serverkeyapi/inputPublicKey"
ServerKeyQueryPublicKeyPath = "/serverkeyapi/queryPublicKey"
)
// NewServerKeyClient creates a ServerKeyInternalAPI implemented by talking to a HTTP POST API.
// If httpClient is nil an error is returned
func NewServerKeyClient(
serverKeyAPIURL string,
httpClient *http.Client,
cache caching.ServerKeyCache,
) (api.ServerKeyInternalAPI, error) {
if httpClient == nil {
return nil, errors.New("NewRoomserverInternalAPIHTTP: httpClient is <nil>")
}
return &httpServerKeyInternalAPI{
serverKeyAPIURL: serverKeyAPIURL,
httpClient: httpClient,
cache: cache,
}, nil
}
type httpServerKeyInternalAPI struct {
serverKeyAPIURL string
httpClient *http.Client
cache caching.ServerKeyCache
}
func (s *httpServerKeyInternalAPI) KeyRing() *gomatrixserverlib.KeyRing {
// This is a bit of a cheat - we tell gomatrixserverlib that this API is
// both the key database and the key fetcher. While this does have the
// rather unfortunate effect of preventing gomatrixserverlib from handling
// key fetchers directly, we can at least reimplement this behaviour on
// the other end of the API.
return &gomatrixserverlib.KeyRing{
KeyDatabase: s,
KeyFetchers: []gomatrixserverlib.KeyFetcher{},
}
}
func (s *httpServerKeyInternalAPI) FetcherName() string {
return "httpServerKeyInternalAPI"
}
func (s *httpServerKeyInternalAPI) StoreKeys(
_ context.Context,
results map[gomatrixserverlib.PublicKeyLookupRequest]gomatrixserverlib.PublicKeyLookupResult,
) error {
// Run in a background context - we don't want to stop this work just
// because the caller gives up waiting.
ctx := context.Background()
request := api.InputPublicKeysRequest{
Keys: make(map[gomatrixserverlib.PublicKeyLookupRequest]gomatrixserverlib.PublicKeyLookupResult),
}
response := api.InputPublicKeysResponse{}
for req, res := range results {
request.Keys[req] = res
s.cache.StoreServerKey(req, res)
}
return s.InputPublicKeys(ctx, &request, &response)
}
func (s *httpServerKeyInternalAPI) FetchKeys(
_ context.Context,
requests map[gomatrixserverlib.PublicKeyLookupRequest]gomatrixserverlib.Timestamp,
) (map[gomatrixserverlib.PublicKeyLookupRequest]gomatrixserverlib.PublicKeyLookupResult, error) {
// Run in a background context - we don't want to stop this work just
// because the caller gives up waiting.
ctx := context.Background()
result := make(map[gomatrixserverlib.PublicKeyLookupRequest]gomatrixserverlib.PublicKeyLookupResult)
request := api.QueryPublicKeysRequest{
Requests: make(map[gomatrixserverlib.PublicKeyLookupRequest]gomatrixserverlib.Timestamp),
}
response := api.QueryPublicKeysResponse{
Results: make(map[gomatrixserverlib.PublicKeyLookupRequest]gomatrixserverlib.PublicKeyLookupResult),
}
for req, ts := range requests {
if res, ok := s.cache.GetServerKey(req); ok {
result[req] = res
continue
}
request.Requests[req] = ts
}
err := s.QueryPublicKeys(ctx, &request, &response)
if err != nil {
return nil, err
}
for req, res := range response.Results {
result[req] = res
s.cache.StoreServerKey(req, res)
}
return result, nil
}
func (h *httpServerKeyInternalAPI) InputPublicKeys(
ctx context.Context,
request *api.InputPublicKeysRequest,
response *api.InputPublicKeysResponse,
) error {
span, ctx := opentracing.StartSpanFromContext(ctx, "InputPublicKey")
defer span.Finish()
apiURL := h.serverKeyAPIURL + ServerKeyInputPublicKeyPath
return httputil.PostJSON(ctx, span, h.httpClient, apiURL, request, response)
}
func (h *httpServerKeyInternalAPI) QueryPublicKeys(
ctx context.Context,
request *api.QueryPublicKeysRequest,
response *api.QueryPublicKeysResponse,
) error {
span, ctx := opentracing.StartSpanFromContext(ctx, "QueryPublicKey")
defer span.Finish()
apiURL := h.serverKeyAPIURL + ServerKeyQueryPublicKeyPath
return httputil.PostJSON(ctx, span, h.httpClient, apiURL, request, response)
}
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