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Cristian Peța

TidHTTPServer with SSL in Delphi 10.3.3 and 10.4.2

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I have a project using TidHTTPServer on Delphi 10.3.3 using Indy from Delphi installation. SSL libraries 1.0.2u. All is working.

I moved this project to Delphi 10.4.2 and while on http is still working, on https doesn't work anymore.


In Fiddler I have his error:

[Fiddler] The connection to 'localhost' failed.
System.Security.SecurityException Failed to negotiate HTTPS connection with server.fiddler.network.https> HTTPS handshake to localhost (for #377) failed. System.IO.IOException Authentication failed because the remote party has closed the transport stream.


And in the browser: ERR_TIMED_OUT


Here is the code:

  ServerSSLIOHandler: TIdServerIOHandlerSSLOpenSSL;


  RootDir := ExtractFilePath(ParamStr(0));
  ServerSSLIOHandler := TIdServerIOHandlerSSLOpenSSL.Create(nil);
  ServerSSLIOhandler.SSLOptions.RootCertFile :=  RootDir + 'root.pem';
  ServerSSLIOhandler.SSLOptions.CertFile := RootDir + 'cert.pem';
  ServerSSLIOhandler.SSLOptions.KeyFile := RootDir + 'key.pem';
  ServerSSLIOhandler.SSLOptions.Method := sslvSSLv23;
  ServerSSLIOhandler.SSLOptions.Mode := sslmServer;
  ServerSSLIOhandler.OnGetPassword := nil;
  ServerSSLIOhandler.OnVerifyPeer := OnVerifyPeer;

  FIdHTTPServer := TIdHTTPServer.Create(nil);
  FIdHTTPServer.IOHandler := ServerSSLIOHandler;
  FIdHTTPServer.DefaultPort := 8000;
  FIdHTTPServer.OnCommandGet := FIdHTTPServerCommandGet;
  FIdHTTPServer.OnCreatePostStream := FIdHTTPServerCreatePostStream;




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You are not taking this change into account:


Behavioral change to HTTPS handling in TIdHTTPServer


When using non-default HTTP/S ports (as you are), you need to assign an OnQuerySSLPort event handler to tell TIdHTTPServer which port(s) you want to activate SSL/TLS on.  In the older version, you could get away with not having that handler, but it is required now.

Edited by Remy Lebeau
  • Thanks 1

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