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bd8133aedd
* fix: add cache-control headers (no-store, no-cache) on grpc (for grpc-web) * fix: do not cache api response (incl. grpc) and http errors
33 lines
953 B
Go
33 lines
953 B
Go
package middleware
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import (
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"context"
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"net/http"
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"time"
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"github.com/caos/logging"
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"github.com/grpc-ecosystem/grpc-gateway/v2/runtime"
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"google.golang.org/grpc"
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"google.golang.org/grpc/metadata"
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_ "github.com/caos/zitadel/internal/statik"
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)
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func NoCacheInterceptor() grpc.UnaryServerInterceptor {
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return func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
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headers := map[string]string{
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"cache-control": "no-store",
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"expires": time.Now().UTC().Format(http.TimeFormat),
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"pragma": "no-cache",
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}
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header := metadata.New(headers)
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for key, value := range headers {
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header.Append(runtime.MetadataHeaderPrefix+key, value)
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}
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err := grpc.SendHeader(ctx, header)
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logging.Log("MIDDLE-efh41").OnError(err).WithField("req", info.FullMethod).Warn("cannot send cache-control on grpc response")
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resp, err := handler(ctx, req)
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return resp, err
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}
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}
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