public void AddToRouteBuilder(RouteBuilder rb, bool showDetailError)
{
this.IsSealed = true;
foreach (var act in List)
{
foreach (var method in act.Methods._GetWebMethodListFromBits())
{
rb.MapVerb(method.ToString(), act.Template,
async(request, response, routeData) =>
{
CgiContext ctx = new CgiContext(request, routeData, request._GetRequestCancellationToken());
try
{
await using HttpResult result = await act.ActionAsync(ctx);
await response._SendHttpResultAsync(result, ctx.Cancel);
}
catch (Exception ex)
{
ex = ex._GetSingleException();
ex._Error();
string errorStr;
if (showDetailError == false)
{
errorStr = ex.Message;
}
else
{
errorStr = ex.ToString();
}
await using var errorResult = new HttpStringResult($"HTTP Status Code: 500\r\n" + errorStr, statusCode: 500);
await response._SendHttpResultAsync(errorResult, ctx.Cancel);
}
});
}
}
}
public async Task <string> GetResponseAsync(CgiContext ctx, CancellationToken cancel = default)
{
// Query string の解析
bool port = ctx.QueryString._GetStrFirst("port")._ToBool();
bool fqdn = ctx.QueryString._GetStrFirst("fqdn")._ToBool();
bool verifyfqdn = ctx.QueryString._GetStrFirst("verifyfqdn")._ToBool();
StringWriter w = new StringWriter();
IPAddress clientIp = ctx.ClientIpAddress;
string proxySrcIpStr = ctx.Request.Headers._GetStrFirst("x-proxy-srcip");
var proxySrcIp = proxySrcIpStr._ToIPAddress(noExceptionAndReturnNull: true);
if (proxySrcIp != null)
{
clientIp = proxySrcIp;
}
if (port == false && fqdn == false)
{
// 従来のサーバーとの互換性を維持するため改行を入れません !!
return($"IP={clientIp.ToString()}");
}
w.WriteLine($"IP={clientIp.ToString()}");
if (port)
{
w.WriteLine($"PORT={ctx.ClientPort}");
}
if (fqdn)
{
string hostname = clientIp.ToString();
try
{
var ipType = clientIp._GetIPAddressType();
if (ipType.BitAny(IPAddressType.IPv4_IspShared | IPAddressType.Loopback | IPAddressType.Zero | IPAddressType.Multicast | IPAddressType.LocalUnicast))
{
// ナーシ
}
else
{
hostname = await this.Dns.GetHostNameOrIpAsync(clientIp, cancel);
if (verifyfqdn)
{
try
{
var ipList = await this.Dns.GetIpAddressListSingleStackAsync(hostname,
clientIp.AddressFamily == System.Net.Sockets.AddressFamily.InterNetworkV6?DnsResolverQueryType.AAAA : DnsResolverQueryType.A,
cancel : cancel);
if ((ipList?.Any(x => IpComparer.Comparer.Equals(x, clientIp)) ?? false) == false)
{
// NG
hostname = ctx.ClientIpAddress.ToString();
}
}
catch
{
// NG
hostname = ctx.ClientIpAddress.ToString();
}
}
}
}
catch { }
w.WriteLine($"FQDN={hostname}");
}
return(w.ToString());
}
