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problem with post methos https - URGENT - Printable Version

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problem with post methos https - URGENT - staff@ergosoft.it - 03-01-2019

Hi,

I have this function 

function TFDMFE.EncodeFile(const FileName: string): AnsiString;
var
  stream: TMemoryStream;
begin
    stream := TMemoryStream.Create;
    try
      stream.LoadFromFile(filename);
      result := EncodeBase64(stream.Memory, stream.Size);
    finally
         FreeAndNil(stream);
    end;
end;

procedure TFDMFE.InviaFE(Autorizzazione, PercorsoFileXML, Credenziali, Dominio : string);
var
 lHTTP: TIdHTTP;
 lParamList: TStringList;
 Comando, RisultatoPost : string;
begin
   //************ COMANDO HTTP ********
   Comando := 'https://ws.fatturazioneelettronica.aruba.it/services/invoice/upload';
   //**********************************

   lParamList := TStringList.Create;

   Credenziali := '""';
   Dominio := '""';

   try
     lParamList.Add('"dataFile":"'+EncodeFile(PercorsoFileXML)+'"');
     lParamList.Add('"credential":'+Credenziali); // vuoti
     lParamList.Add('"domain":'+Dominio);     // vuoti

     lHTTP := TIdHTTP.Create;
     try
        lHTTP.IOHandler := TIdSSLIOHandlerSocketOpenSSL.Create(lHTTP);
        lHTTP.HandleRedirects := True;
        lHTTP.Request.CustomHeaders.FoldLines := False;
        lHTTP.Request.Accept := 'application/json';
        lHTTP.Request.CustomHeaders.Add('Authorization:Bearer ' + Autorizzazione);
        lHTTP.Request.ContentType := 'application/json';
        lHTTP.Request.CharSet := 'UTF-8';

         try
              RisultatoPost := lHTTP.Post(Comando, lParamList);
          except
            on E: EIdHTTPProtocolException do
            begin
                Memo1.Lines.Add(E.ErrorMessage);
            end;
          end;
     finally
       lHTTP.Free;
     end;

   finally
      lParamList.Free;
   end;
end;

I have this error:

{"timestamp":"2019-03-01T21:45:29.634+0000","status":400,"error":"Bad Request","message":"JSON parse error: Unexpected character ('%' (code 37)): expected a valid value (number, String, array, object, 'true', 'false' or 'null'); nested exception is com.fasterxml.jackson.core.JsonParseException: Unexpected character ('%' (code 37)): expected a valid value (number, String, array, object, 'true', 'false' or 'null')\n at [Source: (PushbackInputStream); line: 1, column: 2]","path":"/core-trasmissione-rest-fattura/services/invoice/upload"}


THIS IS THE DOCUMENTATION:

7.1. Upload invoice
Code:
POST /services/invoice/upload

Questo metodo deve essere utilizzato dall’OE per effettuare l’invio di una fattura già nel formato XML secondo norme AGID, ma non ancora firmata digitalmente.
HTTP request
Code:
POST /services/invoice/upload HTTP/1.1
Accept: application/json
Authorization: Bearer NLOGDVXLVaF3tzmnVPkTwpkuh7dG0i09uSCcog3u+rE=
Content-Type: application/json;charset=UTF-8

{
 "dataFile" : "dGVzdA==",
 "credential" : "",
 "domain" : ""
}


I parametri [i]"domain" e "credential" rappresentano rispettivamente il dominio e le credenziali di firma automatica se possedute dall’utente, in caso contrario lasciare tali campi vuoti.[/i]
Request headers
Name
Description
Code:
Authorization

Provisioner access token
Request fields
Path
Type
Description
Code:
dataFile

Code:
String

Dati allegato in formato encoded Base64
Code:
credential

Code:
String

Credenziali firma
Code:
domain

Code:
String

Domain firma
HTTP response
Code:
HTTP/1.1 200 OK
Content-Type: application/json;charset=UTF-8
Content-Length: 105

{
 "errorCode" : "",
 "errorDescription" : "",
 "uploadFileName" : "IT01490810845_uxjhl.xml.p7m"
}

Response fields
Path
Type
Description
Code:
uploadFileName

Code:
String

Nome file fattura (inviato a SdI) restituito dal ws
Code:
errorCode

Code:
String

Eventuale codice di errore
Code:
errorDescription

Code:
String

Eventuale descrizione errore


thanks

RE: problem with post methos https - URGENT - rlebeau - 03-01-2019

You can't post JSON data using the TStrings overload of TIdHTTP.Post(). That overload is designed for posting HTML webforms, and as such will post the data in "application/x-www-webform-urlencoded" format, which will corrupt your JSON (not that you are populating the TStringList correctly for JSON anyway, because you are not). That is why you are getting a "Bad request" error from the server about unexpected '%' characters.

Since you want to post the JSON in "application/json" format, you need to use the TStream overload of TIdHTTP.Post() instead:

Code:
procedure TFDMFE.InviaFE(Autorizzazione, PercorsoFileXML, Credenziali, Dominio : string);
var
  lHTTP: TIdHTTP;
  lPostData: TStringStream;
  JSON, Comando, RisultatoPost : string;

  function EscapeForJson(const S: string): string;
  var
    I: Integer;
  begin
    Result := '';
    for I := 1 to Length(S) do
    begin
      case S[I] of
        #0..#7, #11, #14..#31:
          Result := Result + '\u' + UpperCase(IntToHex(Ord(S[I]), 4));
        #8:
          Result := Result + '\b';
        #9:
          Result := Result + '\t';
        #10:
          Result := Result + '\n';
        #12:
          Result := Result + '\f';
        #13:
          Result := Result + '\r';
        #34:
          Result := Result + '\"';
        #47:
          Result := Result + '\/';
        #92:
          Result := Result + '\\';
      else
        Result := Result + S[I];
      end;
    end;
  end;

begin
 //************ COMANDO HTTP ********
 Comando := 'https://ws.fatturazioneelettronica.aruba.it/services/invoice/upload';
 //**********************************

  JSON := '{' + sLineBreak +
    '  "dataFile" : "' + EncodeFile(PercorsoFileXML) + '",' + sLineBreak +
    '  "credential" : "' + EscapeForJson(Credenziali) + '",' + sLineBreak +
    '  "domain" : "' + EscapeForJson(Dominio) + '"' + sLineBreak +
    '}';

 lPostData := TStringStream.Create(JSON, TEncoding.UTF8);
 try
    lHTTP := TIdHTTP.Create;
    try
     lHTTP.IOHandler := TIdSSLIOHandlerSocketOpenSSL.Create(lHTTP);
      lHTTP.HandleRedirects := True;
      lHTTP.Request.CustomHeaders.FoldLines := False;
      lHTTP.Request.Accept := 'application/json';
      lHTTP.Request.CustomHeaders.Values['Authorization'] := 'Bearer ' + Autorizzazione;
      lHTTP.Request.ContentType := 'application/json';
      lHTTP.Request.CharSet := 'UTF-8';

      try
        RisultatoPost := lHTTP.Post(Comando, lPostData);
      except
        on E: EIdHTTPProtocolException do
        begin
          Memo1.Lines.Add(E.ErrorMessage);
        end;
      end;
    finally
      lHTTP.Free;
    end;
  finally
    lPostData.Free;
  end;
end;

Alternatively:

Code:
uses
  ..., System.JSON;

procedure TFDMFE.InviaFE(Autorizzazione, PercorsoFileXML, Credenziali, Dominio : string);
var
  lHTTP: TIdHTTP;
  lPostData: TStringStream;
  lJSONObj: TJSONObject;
  JSON, Comando, RisultatoPost : string;
begin
  //************ COMANDO HTTP ********
  Comando := 'https://ws.fatturazioneelettronica.aruba.it/services/invoice/upload';
  //**********************************

  lJSONObj := TJSONObject.Create;
  try
    lJSONObj.AddPair('dataFile', EncodeFile(PercorsoFileXML));
    lJSONObj.AddPair('credential', Credenziali);
    lJSONObj.AddPair('domain', Dominio);
    JSON := lJSONObj.ToJSON;
  finally
    lJSONObj.Free;
  end;

  lPostData := TStringStream.Create(JSON, TEncoding.UTF8);
  try
    lHTTP := TIdHTTP.Create;
    try
      lHTTP.IOHandler := TIdSSLIOHandlerSocketOpenSSL.Create(lHTTP);
      lHTTP.HandleRedirects := True;
      lHTTP.Request.CustomHeaders.FoldLines := False;
      lHTTP.Request.Accept := 'application/json';
      lHTTP.Request.CustomHeaders.Values['Authorization'] := 'Bearer ' + Autorizzazione;
      lHTTP.Request.ContentType := 'application/json';
      lHTTP.Request.CharSet := 'UTF-8';

      try
        RisultatoPost := lHTTP.Post(Comando, lPostData);
      except
        on E: EIdHTTPProtocolException do
        begin
          Memo1.Lines.Add(E.ErrorMessage);
        end;
      end;
    finally
      lHTTP.Free;
    end;
  finally
    lPostData.Free;
  end;
end;


RE: problem with post methos https - URGENT - staff@ergosoft.it - 03-02-2019

Hi,
thanks
now is ok....

I have use this...

with TJSONObject.Create do
try
AddPair('dataFile', EncodeFile(PercorsoFileXML));
AddPair('credential', Credenziali);
AddPair('domain', Dominio);
lPostData.Writestring(ToJSON); // this line is changed**********************
finally
Free;
end;