Method redirect_request

src/proxy/http/HttpSM.cc:8377–8596

}

void
HttpSM::redirect_request(const char *arg_redirect_url, const int arg_redirect_len)
{
  SMDbg(dbg_ctl_http_redirect, "redirect url: %.*s", arg_redirect_len, arg_redirect_url);
  // get a reference to the client request header and client url and check to see if the url is valid
  HTTPHdr &clientRequestHeader = t_state.hdr_info.client_request;
  URL     &clientUrl           = *clientRequestHeader.url_get();
  if (!clientUrl.valid()) {
    return;
  }

  bool valid_origHost = true;
  int  origHost_len, origMethod_len;
  char origHost[MAXDNAME];
  char origMethod[255];
  int  origPort = 80;

  if (t_state.hdr_info.server_request.valid()) {
    char *tmpOrigHost;

    origPort    = t_state.hdr_info.server_request.port_get();
    tmpOrigHost = const_cast<char *>(t_state.hdr_info.server_request.value_get(MIME_FIELD_HOST, MIME_LEN_HOST, &origHost_len));

    if (tmpOrigHost) {
      memcpy(origHost, tmpOrigHost, origHost_len);
      origHost[std::min(origHost_len, MAXDNAME - 1)] = '\0';
    } else {
      valid_origHost = false;
    }

    char *tmpOrigMethod = const_cast<char *>(t_state.hdr_info.server_request.method_get(&origMethod_len));
    if (tmpOrigMethod) {
      memcpy(origMethod, tmpOrigMethod, std::min(origMethod_len, static_cast<int>(sizeof(origMethod))));
    } else {
      valid_origHost = false;
    }
  } else {
    SMDbg(dbg_ctl_http_redir_error, "t_state.hdr_info.server_request not valid");
    valid_origHost = false;
  }

  t_state.redirect_info.redirect_in_process = true;

  // set the passed in location url and parse it
  URL redirectUrl;
  redirectUrl.create(nullptr);

  redirectUrl.parse(arg_redirect_url, arg_redirect_len);
  {
    int _scheme_len = -1;
    int _host_len   = -1;
    if (redirectUrl.scheme_get(&_scheme_len) == nullptr && redirectUrl.host_get(&_host_len) != nullptr &&
        arg_redirect_url[0] != '/') {
      // RFC7230 § 5.5
      // The redirect URL lacked a scheme and so it is a relative URL.
      // The redirect URL did not begin with a slash, so we parsed some or all
      // of the relative URI path as the host.
      // Prepend a slash and parse again.