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21 
22 #pragma once
23 // Bridges from KJ HTTP to Cap'n Proto HTTP-over-RPC.
24 
25 #include <capnp/compat/http-over-capnp.capnp.h>
26 #include <kj/compat/http.h>
27 #include <kj/map.h>
28 #include "byte-stream.h"
29 
30 namespace capnp {
31 
32 class HttpOverCapnpFactory {
33 public:
34   HttpOverCapnpFactory(ByteStreamFactory& streamFactory,
35                        kj::HttpHeaderTable::Builder& headerTableBuilder);
36 
37   kj::Own<kj::HttpService> capnpToKj(capnp::HttpService::Client rpcService);
38   capnp::HttpService::Client kjToCapnp(kj::Own<kj::HttpService> service);
39 
40 private:
41   ByteStreamFactory& streamFactory;
42   kj::HttpHeaderTable& headerTable;
43   kj::Array<capnp::CommonHeaderName> nameKjToCapnp;
44   kj::Array<kj::HttpHeaderId> nameCapnpToKj;
45   kj::Array<kj::StringPtr> valueCapnpToKj;
46   kj::HashMap<kj::StringPtr, capnp::CommonHeaderValue> valueKjToCapnp;
47 
48   class RequestState;
49 
50   class CapnpToKjWebSocketAdapter;
51   class KjToCapnpWebSocketAdapter;
52 
53   class ClientRequestContextImpl;
54   class KjToCapnpHttpServiceAdapter;
55 
56   class ServerRequestContextImpl;
57   class CapnpToKjHttpServiceAdapter;
58 
59   kj::HttpHeaders headersToKj(capnp::List<capnp::HttpHeader>::Reader capnpHeaders) const;
60   // Returned headers may alias into `capnpHeaders`.
61 
62   capnp::Orphan<capnp::List<capnp::HttpHeader>> headersToCapnp(
63       const kj::HttpHeaders& headers, capnp::Orphanage orphanage);
64 };
65 
66 }  // namespace capnp
67