Question

I’m using Indy to do a Post to an SMS service that will send the SMS, but the SMS text ends up on my phone with %20 instead of spaces, here is the code:

url,text:string;
IdHTTP1: TIdHTTP;
IdSSLIOHandlerSocketOpenSSL2: TIdSSLIOHandlerSocketOpenSSL;
 begin    
    IdSSLIOHandlerSocketOpenSSL2 := TIdSSLIOHandlerSocketOpenSSL.Create;
    IdHTTP1 := TIdHTTP.Create;
    IdSSLIOHandlerSocketOpenSSL2.SSLOptions.Method := sslvSSLv23;
    IdHTTP1.IOHandler := IdSSLIOHandlerSocketOpenSSL2;
    IdHTTP1.HandleRedirects := true;
    IdHTTP1.ReadTimeout := 5000;
    param:=TStringList.create;
    param.Clear;
    param.Add('action=create');
    param.Add('token=' + SMSToken);
    param.Add('to=' + Phone);
    param.Add('msg=' + MessageText);
    url:='https://api.tropo.com/1.0/sessions';
    try
       text:=IdHTTP1.Post(url, param);

thanks

Answer 1

The TStrings version of TIdHTTP.Post() sends an application/x-www-form-urlencoded request to the server. The posted data is url-encoded by default. The server needs to decode the posted data before processing it. It sounds like the server-side code is not doing that correctly. You can remove the hoForceEncodeParams flag from the TIdHTTP.HTTPOptions property to disable the url-encoding of the posted data, but I would advise you to report the bug to Tropo instead so they can fix their server-side code.