/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef TLSServer_h
#define TLSServer_h

// This is a standalone server for testing SSL features of Gecko.
// The client is expected to connect and initiate an SSL handshake (with SNI
// to indicate which "server" to connect to). If all is good, the client then
// sends one encrypted byte and receives that same byte back.
// This server also has the ability to "call back" another process waiting on
// it. That is, when the server is all set up and ready to receive connections,
// it will connect to a specified port and issue a simple HTTP request.

#include <stdint.h>

#include "ScopedNSSTypes.h"
#include "mozilla/Casting.h"
#include "prio.h"
#include "secerr.h"
#include "ssl.h"

namespace mozilla {

MOZ_TYPE_SPECIFIC_UNIQUE_PTR_TEMPLATE(UniquePRDir, PRDir, PR_CloseDir);

} // namespace mozilla

namespace mozilla { namespace test {

enum DebugLevel
{
  DEBUG_ERRORS = 1,
  DEBUG_WARNINGS  = 2,
  DEBUG_VERBOSE = 3
};

extern DebugLevel gDebugLevel;

void PrintPRError(const char *aPrefix);

// The default certificate is trusted for localhost and *.example.com
extern const char DEFAULT_CERT_NICKNAME[];

// Pass DEFAULT_CERT_NICKNAME as certName unless you need a specific
// certificate.
SECStatus
ConfigSecureServerWithNamedCert(PRFileDesc* fd, const char* certName,
                                /*optional*/ UniqueCERTCertificate* cert,
                                /*optional*/ SSLKEAType* kea);

SECStatus
InitializeNSS(const char* nssCertDBDir);

int
StartServer(const char *nssCertDBDir, SSLSNISocketConfig sniSocketConfig,
            void *sniSocketConfigArg);

template <typename Host>
inline const Host *
GetHostForSNI(const SECItem *aSrvNameArr, uint32_t aSrvNameArrSize,
              const Host *hosts)
{
  for (uint32_t i = 0; i < aSrvNameArrSize; i++) {
    for (const Host *host = hosts; host->mHostName; ++host) {
      SECItem hostName;
      hostName.data = BitwiseCast<unsigned char*, const char*>(host->mHostName);
      hostName.len = strlen(host->mHostName);
      if (SECITEM_ItemsAreEqual(&hostName, &aSrvNameArr[i])) {
        if (gDebugLevel >= DEBUG_VERBOSE) {
          fprintf(stderr, "found pre-defined host '%s'\n", host->mHostName);
        }
        return host;
      }
    }
  }

  if (gDebugLevel >= DEBUG_VERBOSE) {
    fprintf(stderr, "could not find host info from SNI\n");
  }

  PR_SetError(SEC_ERROR_INVALID_ARGS, 0);
  return nullptr;
}

} } // namespace mozilla::test

#endif // TLSServer_h
