1 files changed, 728 insertions, 0 deletions
diff --git a/tdeioslave/smtp/test_commands.cc b/tdeioslave/smtp/test_commands.cc
new file mode 100644
index 000000000..d8a5f0d4e
--- /dev/null
+++ b/tdeioslave/smtp/test_commands.cc
@@ -0,0 +1,728 @@
+#include <tdeio/global.h>
+#include <kdebug.h>
+
+#include <tqstring.h>
+#include <tqcstring.h>
+#include <tqstringlist.h>
+
+//#include <iostream>
+//using std::cout;
+//using std::endl;
+
+namespace KioSMTP {
+  class Response;
+};
+
+// fake
+class SMTPProtocol {
+public:
+  SMTPProtocol() { clear(); }
+
+  //
+  // public members to control the API emulation below:
+  //
+  int startTLSReturnCode;
+  bool usesSSL;
+  bool usesTLS;
+  int lastErrorCode;
+  TQString lastErrorMessage;
+  int lastMessageBoxCode;
+  TQString lastMessageBoxText;
+  TQByteArray nextData;
+  int nextDataReturnCode;
+  TQStringList caps;
+  TDEIO::MetaData metadata;
+
+  void clear() {
+    startTLSReturnCode = 1;
+    usesSSL = usesTLS = false;
+    lastErrorCode = lastMessageBoxCode = 0;
+    lastErrorMessage = lastMessageBoxText = TQString::null;
+    nextData.resize( 0 );
+    nextDataReturnCode = -1;
+    caps.clear();
+    metadata.clear();
+  }
+
+  //
+  // emulated API:
+  //
+  void parseFeatures( const KioSMTP::Response & ) { /* noop */ }
+  int startTLS() {
+    if ( startTLSReturnCode == 1 )
+      usesTLS = true;
+    return startTLSReturnCode;
+  }
+  bool usingSSL() const { return usesSSL; }
+  bool usingTLS() const { return usesTLS; }
+  bool haveCapability( const char * cap ) const { return caps.contains( cap ); }
+  void error( int id, const TQString & msg ) {
+    lastErrorCode = id;
+    lastErrorMessage = msg;
+  }
+  void messageBox( int id, const TQString & msg, const TQString & ) {
+    lastMessageBoxCode = id;
+    lastMessageBoxText = msg;
+  }
+  void dataReq() { /* noop */ }
+  int readData( TQByteArray & ba ) { ba = nextData; return nextDataReturnCode; }
+  TQString metaData( const TQString & key ) const { return metadata[key]; }
+
+};
+
+#define _SMTP_H
+
+#define KIOSMTP_COMPARATORS // for TransactionState::operator==
+#include "command.h"
+#include "response.h"
+#include "transactionstate.h"
+
+#include <assert.h>
+
+using namespace KioSMTP;
+
+static const char * foobarbaz = ".Foo bar baz";
+static const unsigned int foobarbaz_len = tqstrlen( foobarbaz );
+
+static const char * foobarbaz_dotstuffed = "..Foo bar baz";
+static const unsigned int foobarbaz_dotstuffed_len = tqstrlen( foobarbaz_dotstuffed );
+
+static const char * foobarbaz_lf = ".Foo bar baz\n";
+static const unsigned int foobarbaz_lf_len = tqstrlen( foobarbaz_lf );
+
+static const char * foobarbaz_crlf = "..Foo bar baz\r\n";
+static const unsigned int foobarbaz_crlf_len = tqstrlen( foobarbaz_crlf );
+
+static void checkSuccessfulTransferCommand( bool, bool, bool, bool, bool );
+
+int main( int, char** ) {
+
+  // FIXME: Port this to new API.
+#if 0
+  SMTPProtocol smtp;
+  Response r;
+  TransactionState ts, ts2;
+
+  //
+  // EHLO / HELO
+  //
+
+  smtp.clear();
+  EHLOCommand ehlo( &smtp, "mail.example.com" );
+  // flags
+  assert( ehlo.closeConnectionOnError() );
+  assert( ehlo.mustBeLastInPipeline() );
+  assert( !ehlo.mustBeFirstInPipeline() );
+
+  // initial state
+  assert( !ehlo.isComplete() );
+  assert( !ehlo.doNotExecute( 0 ) );
+  assert( !ehlo.needsResponse() );
+
+  // dynamics 1: EHLO succeeds
+  assert( ehlo.nextCommandLine( 0 ) == "EHLO mail.example.com\r\n" );
+  assert( !ehlo.isComplete() ); // EHLO may fail and we then try HELO
+  assert( ehlo.needsResponse() );
+  r.clear();
+  r.parseLine( "250-mail.example.net\r\n" );
+  r.parseLine( "250-PIPELINING\r\n" );
+  r.parseLine( "250 8BITMIME\r\n" );
+  assert( ehlo.processResponse( r, 0 ) == true );
+  assert( ehlo.isComplete() );
+  assert( !ehlo.needsResponse() );
+  assert( smtp.lastErrorCode == 0 );
+  assert( smtp.lastErrorMessage.isNull() );
+
+  // dynamics 2: EHLO fails with "unknown command"
+  smtp.clear();
+  EHLOCommand ehlo2( &smtp, "mail.example.com" );
+  ehlo2.nextCommandLine( 0 );
+  r.clear();
+  r.parseLine( "500 unknown command\r\n" );
+  assert( ehlo2.processResponse( r, 0 ) == true );
+  assert( !ehlo2.isComplete() );
+  assert( !ehlo2.needsResponse() );
+  assert( ehlo2.nextCommandLine( 0 ) == "HELO mail.example.com\r\n" );
+  assert( ehlo2.isComplete() );
+  assert( ehlo2.needsResponse() );
+  r.clear();
+  r.parseLine( "250 mail.example.net\r\n" );
+  assert( ehlo2.processResponse( r, 0 ) == true );
+  assert( !ehlo2.needsResponse() );
+  assert( smtp.lastErrorCode == 0 );
+  assert( smtp.lastErrorMessage.isNull() );
+
+  // dynamics 3: EHLO fails with unknown response code
+  smtp.clear();
+  EHLOCommand ehlo3( &smtp, "mail.example.com" );
+  ehlo3.nextCommandLine( 0 );
+  r.clear();
+  r.parseLine( "545 you don't know me\r\n" );
+  assert( ehlo3.processResponse( r, 0 ) == false );
+  assert( ehlo3.isComplete() );
+  assert( !ehlo3.needsResponse() );
+  assert( smtp.lastErrorCode == TDEIO::ERR_UNKNOWN );
+
+  // dynamics 4: EHLO _and_ HELO fail with "command unknown"
+  smtp.clear();
+  EHLOCommand ehlo4( &smtp, "mail.example.com" );
+  ehlo4.nextCommandLine( 0 );
+  r.clear();
+  r.parseLine( "500 unknown command\r\n" );
+  ehlo4.processResponse( r, 0 );
+  ehlo4.nextCommandLine( 0 );
+  r.clear();
+  r.parseLine( "500 unknown command\r\n" );
+  assert( ehlo4.processResponse( r, 0 ) == false );
+  assert( ehlo4.isComplete() );
+  assert( !ehlo4.needsResponse() );
+  assert( smtp.lastErrorCode == TDEIO::ERR_INTERNAL_SERVER );
+  
+  //
+  // STARTTLS
+  //
+
+  smtp.clear();
+  StartTLSCommand tls( &smtp );
+  // flags
+  assert( tls.closeConnectionOnError() );
+  assert( tls.mustBeLastInPipeline() );
+  assert( !tls.mustBeFirstInPipeline() );
+
+  // initial state
+  assert( !tls.isComplete() );
+  assert( !tls.doNotExecute( 0 ) );
+  assert( !tls.needsResponse() );
+
+  // dynamics 1: ok from server, TLS negotiation successful
+  ts.clear();
+  ts2 = ts;
+  assert( tls.nextCommandLine( &ts ) == "STARTTLS\r\n" );
+  assert( ts == ts2 );
+  assert( tls.isComplete() );
+  assert( tls.needsResponse() );
+  r.clear();
+  r.parseLine( "220 Go ahead" );
+  smtp.startTLSReturnCode = 1;
+  assert( tls.processResponse( r, &ts ) == true );
+  assert( !tls.needsResponse() );
+  assert( smtp.lastErrorCode == 0 );
+  
+  // dynamics 2: NAK from server
+  smtp.clear();
+  StartTLSCommand tls2( &smtp );
+  ts.clear();
+  tls2.nextCommandLine( &ts );
+  r.clear();
+  r.parseLine( "454 TLS temporarily disabled" );
+  smtp.startTLSReturnCode = 1;
+  assert( tls2.processResponse( r, &ts ) == false );
+  assert( !tls2.needsResponse() );
+  assert( smtp.lastErrorCode == TDEIO::ERR_SERVICE_NOT_AVAILABLE );
+  
+  // dynamics 3: ok from server, TLS negotiation unsuccessful
+  smtp.clear();
+  StartTLSCommand tls3( &smtp );
+  ts.clear();
+  tls3.nextCommandLine( &ts );
+  r.clear();
+  r.parseLine( "220 Go ahead" );
+  smtp.startTLSReturnCode = -1;
+  assert( tls.processResponse( r, &ts ) == false );
+  assert( !tls.needsResponse() );
+  
+  //
+  // AUTH
+  //
+
+  smtp.clear();
+  TQStrIList mechs;
+  mechs.append( "PLAIN" );
+  smtp.metadata["sasl"] = "PLAIN";
+  AuthCommand auth( &smtp, mechs, "user", "pass" );
+  // flags
+  assert( auth.closeConnectionOnError() );
+  assert( auth.mustBeLastInPipeline() );
+  assert( !auth.mustBeFirstInPipeline() );
+
+  // initial state
+  assert( !auth.isComplete() );
+  assert( !auth.doNotExecute( 0 ) );
+  assert( !auth.needsResponse() );
+
+  // dynamics 1: TLS, so AUTH should include initial-response:
+  smtp.usesTLS = true;
+  ts.clear();
+  ts2 = ts;
+  assert( auth.nextCommandLine( &ts ) == "AUTH PLAIN dXNlcgB1c2VyAHBhc3M=\r\n" );
+  assert( auth.isComplete() );
+  assert( auth.needsResponse() );
+  assert( ts == ts2 );
+  r.clear();
+  r.parseLine( "250 OK" );
+
+  // dynamics 2: No TLS, so AUTH should not include initial-response:
+  smtp.clear();
+  smtp.metadata["sasl"] = "PLAIN";
+  smtp.usesTLS = false;
+  AuthCommand auth2( &smtp, mechs, "user", "pass" );
+  ts.clear();
+  assert( auth2.nextCommandLine( &ts ) == "AUTH PLAIN\r\n" );
+  assert( !auth2.isComplete() );
+  assert( auth2.needsResponse() );
+  r.clear();
+  r.parseLine( "334 Go on" );
+  assert( auth2.processResponse( r, &ts ) == true );
+  assert( auth2.nextCommandLine( &ts ) == "dXNlcgB1c2VyAHBhc3M=\r\n" );
+  assert( auth2.isComplete() );
+  assert( auth2.needsResponse() );
+  
+  // dynamics 3: LOGIN
+  smtp.clear();
+  smtp.metadata["sasl"] = "LOGIN";
+  mechs.clear();
+  mechs.append( "LOGIN" );
+  AuthCommand auth3( &smtp, mechs, "user", "pass" );
+  ts.clear();
+  ts2 = ts;
+  assert( auth3.nextCommandLine( &ts ) == "AUTH LOGIN\r\n" );
+  assert( !auth3.isComplete() );
+  assert( auth3.needsResponse() );
+  r.clear();
+  r.parseLine( "334 VXNlcm5hbWU6" );
+  assert( auth3.processResponse( r, &ts ) == true );
+  assert( !auth3.needsResponse() );
+  assert( auth3.nextCommandLine( &ts ) == "dXNlcg==\r\n" );
+  assert( !auth3.isComplete() );
+  assert( auth3.needsResponse() );
+  r.clear();
+  r.parseLine( "334 go on" );
+  assert( auth3.processResponse( r, &ts ) == true );
+  assert( !auth3.needsResponse() );
+  assert( auth3.nextCommandLine( &ts ) == "cGFzcw==\r\n" );
+  assert( auth3.isComplete() );
+  assert( auth3.needsResponse() );
+  r.clear();
+  r.parseLine( "250 OK" );
+  assert( auth3.processResponse( r, &ts ) == true );
+  assert( !auth3.needsResponse() );
+  assert( !smtp.lastErrorCode );
+  assert( ts == ts2 );
+
+  //
+  // MAIL FROM:
+  //
+
+  smtp.clear();
+  MailFromCommand mail( &smtp, "joe@user.org" );
+  // flags
+  assert( !mail.closeConnectionOnError() );
+  assert( !mail.mustBeLastInPipeline() );
+  assert( !mail.mustBeFirstInPipeline() );
+
+  // initial state
+  assert( !mail.isComplete() );
+  assert( !mail.doNotExecute( 0 ) );
+  assert( !mail.needsResponse() );
+
+  // dynamics: success, no size, no 8bit
+  ts.clear();
+  ts2 = ts;
+  assert( mail.nextCommandLine( &ts ) == "MAIL FROM:<joe@user.org>\r\n" );
+  assert( ts2 == ts );
+  assert( mail.isComplete() );
+  assert( mail.needsResponse() );
+  r.clear();
+  r.parseLine( "250 Ok" );
+  assert( mail.processResponse( r, &ts ) == true );
+  assert( !mail.needsResponse() );
+  assert( ts == ts2 );
+  assert( smtp.lastErrorCode == 0 );
+
+  // dynamics: success, size, 8bit, but no SIZE, 8BITMIME caps
+  smtp.clear();
+  MailFromCommand mail2( &smtp, "joe@user.org", true, 500 );
+  ts.clear();
+  ts2 = ts;
+  assert( mail2.nextCommandLine( &ts ) == "MAIL FROM:<joe@user.org>\r\n" );
+  assert( ts == ts2 );
+
+  // dynamics: success, size, 8bit, SIZE, 8BITMIME caps
+  smtp.clear();
+  MailFromCommand mail3( &smtp, "joe@user.org", true, 500 );
+  ts.clear();
+  ts2 = ts;
+  smtp.caps << "SIZE" << "8BITMIME" ;
+  assert( mail3.nextCommandLine( &ts ) == "MAIL FROM:<joe@user.org> BODY=8BITMIME SIZE=500\r\n" );
+  assert( ts == ts2 );
+
+  // dynamics: failure
+  smtp.clear();
+  MailFromCommand mail4( &smtp, "joe@user.org" );
+  ts.clear();
+  mail4.nextCommandLine( &ts );
+  r.clear();
+  r.parseLine( "503 Bad sequence of commands" );
+  assert( mail4.processResponse( r, &ts ) == false );
+  assert( mail4.isComplete() );
+  assert( !mail4.needsResponse() );
+  assert( ts.failed() );
+  assert( !ts.failedFatally() );
+  assert( smtp.lastErrorCode == 0 );
+
+  //
+  // RCPT TO:
+  //
+
+  smtp.clear();
+  RcptToCommand rcpt( &smtp, "joe@user.org" );
+  // flags
+  assert( !rcpt.closeConnectionOnError() );
+  assert( !rcpt.mustBeLastInPipeline() );
+  assert( !rcpt.mustBeFirstInPipeline() );
+
+  // initial state
+  assert( !rcpt.isComplete() );
+  assert( !rcpt.doNotExecute( 0 ) );
+  assert( !rcpt.needsResponse() );
+
+  // dynamics: success
+  ts.clear();
+  ts2 = ts;
+  assert( rcpt.nextCommandLine( &ts ) == "RCPT TO:<joe@user.org>\r\n" );
+  assert( ts == ts2 );
+  assert( rcpt.isComplete() );
+  assert( rcpt.needsResponse() );
+  r.clear();
+  r.parseLine( "250 Ok" );
+  assert( rcpt.processResponse( r, &ts ) == true );
+  assert( !rcpt.needsResponse() );
+  assert( ts.atLeastOneRecipientWasAccepted() );
+  assert( !ts.haveRejectedRecipients() );
+  assert( !ts.failed() );
+  assert( !ts.failedFatally() );
+  assert( smtp.lastErrorCode == 0 );
+
+  // dynamics: failure
+  smtp.clear();
+  RcptToCommand rcpt2( &smtp, "joe@user.org" );
+  ts.clear();
+  rcpt2.nextCommandLine( &ts );
+  r.clear();
+  r.parseLine( "530 5.7.1 Relaying not allowed!" );
+  assert( rcpt2.processResponse( r, &ts ) == false );
+  assert( rcpt2.isComplete() );
+  assert( !rcpt2.needsResponse() );
+  assert( !ts.atLeastOneRecipientWasAccepted() );
+  assert( ts.haveRejectedRecipients() );
+  assert( ts.rejectedRecipients().count() == 1 );
+  assert( ts.rejectedRecipients().front().recipient == "joe@user.org" );
+  assert( ts.failed() );
+  assert( !ts.failedFatally() );
+  assert( smtp.lastErrorCode == 0 );
+
+  // dynamics: success and failure combined
+  smtp.clear();
+  RcptToCommand rcpt3( &smtp, "info@example.com" );
+  RcptToCommand rcpt4( &smtp, "halloween@microsoft.com" );
+  RcptToCommand rcpt5( &smtp, "joe@user.org" );
+  ts.clear();
+  rcpt3.nextCommandLine( &ts );
+  r.clear();
+  r.parseLine( "530 5.7.1 Relaying not allowed!" );
+  rcpt3.processResponse( r, &ts );
+  
+  rcpt4.nextCommandLine( &ts );
+  r.clear();
+  r.parseLine( "250 Ok" );
+  rcpt4.processResponse( r, &ts );
+
+  rcpt5.nextCommandLine( &ts );
+  r.clear();
+  r.parseLine( "250 Ok" );
+  assert( ts.failed() );
+  assert( !ts.failedFatally() );
+  assert( ts.haveRejectedRecipients() );
+  assert( ts.atLeastOneRecipientWasAccepted() );
+  assert( smtp.lastErrorCode == 0 );
+
+  //
+  // DATA (init)
+  //
+
+  smtp.clear();
+  DataCommand data( &smtp );
+  // flags
+  assert( !data.closeConnectionOnError() );
+  assert( data.mustBeLastInPipeline() );
+  assert( !data.mustBeFirstInPipeline() );
+
+  // initial state
+  assert( !data.isComplete() );
+  assert( !data.doNotExecute( 0 ) );
+  assert( !data.needsResponse() );
+
+  // dynamics: success
+  ts.clear();
+  assert( data.nextCommandLine( &ts ) == "DATA\r\n" );
+  assert( data.isComplete() );
+  assert( data.needsResponse() );
+  assert( ts.dataCommandIssued() );
+  assert( !ts.dataCommandSucceeded() );
+  r.clear();
+  r.parseLine( "354 Send data, end in <CR><LF>.<CR><LF>" );
+  assert( data.processResponse( r, &ts ) == true );
+  assert( !data.needsResponse() );
+  assert( ts.dataCommandSucceeded() );
+  assert( ts.dataResponse() == r );
+  assert( smtp.lastErrorCode == 0 );
+
+  // dynamics: failure
+  smtp.clear();
+  DataCommand data2( &smtp );
+  ts.clear();
+  data2.nextCommandLine( &ts );
+  r.clear();
+  r.parseLine( "551 No valid recipients" );
+  assert( data2.processResponse( r, &ts ) == false );
+  assert( !data2.needsResponse() );
+  assert( !ts.dataCommandSucceeded() );
+  assert( ts.dataResponse() == r );
+  assert( smtp.lastErrorCode == 0 );
+
+  //
+  // DATA (transfer)
+  //
+
+  TransferCommand xfer( &smtp, 0 );
+  // flags
+  assert( !xfer.closeConnectionOnError() );
+  assert( !xfer.mustBeLastInPipeline() );
+  assert( xfer.mustBeFirstInPipeline() );
+
+  // initial state
+  assert( !xfer.isComplete() );
+  assert( !xfer.needsResponse() );
+
+  // dynamics 1: DATA command failed
+  ts.clear();
+  r.clear();
+  r.parseLine( "551 no valid recipients" );
+  ts.setDataCommandIssued( true );
+  ts.setDataCommandSucceeded( false, r );
+  assert( xfer.doNotExecute( &ts ) );
+
+  // dynamics 2: some recipients rejected, but not all
+  smtp.clear();
+  TransferCommand xfer2( &smtp, 0 );
+  ts.clear();
+  ts.setRecipientAccepted();
+  ts.addRejectedRecipient( "joe@user.org", "No relaying allowed" );
+  ts.setDataCommandIssued( true );
+  r.clear();
+  r.parseLine( "354 go on" );
+  ts.setDataCommandSucceeded( true, r );
+  // ### will change with allow-partial-delivery option:
+  assert( xfer.doNotExecute( &ts ) );
+
+  // successful dynamics with all combinations of:
+  enum {
+    EndInLF = 1,
+    PerformDotStuff = 2,
+    UngetLast = 4,
+    Preloading = 8,
+    Error = 16,
+    EndOfOptions = 32
+  };
+  for ( unsigned int i = 0 ; i < EndOfOptions ; ++i )
+    checkSuccessfulTransferCommand( i & Error, i & Preloading, i & UngetLast,
+				    i & PerformDotStuff, i & EndInLF );
+
+  //
+  // NOOP
+  //
+
+  smtp.clear();
+  NoopCommand noop( &smtp );
+  // flags
+  assert( !noop.closeConnectionOnError() );
+  assert( noop.mustBeLastInPipeline() );
+  assert( !noop.mustBeFirstInPipeline() );
+
+  // initial state
+  assert( !noop.isComplete() );
+  assert( !noop.doNotExecute( &ts ) );
+  assert( !noop.needsResponse() );
+
+  // dynamics: success (failure is tested with RSET)
+  assert( noop.nextCommandLine( 0 ) == "NOOP\r\n" );
+  assert( noop.isComplete() );
+  assert( noop.needsResponse() );
+  r.clear();
+  r.parseLine( "250 Ok" );
+  assert( noop.processResponse( r, 0 ) == true );
+  assert( noop.isComplete() );
+  assert( !noop.needsResponse() );
+  assert( smtp.lastErrorCode == 0 );
+  assert( smtp.lastErrorMessage.isNull() );
+
+  //
+  // RSET
+  //
+
+  smtp.clear();
+  RsetCommand rset( &smtp );
+  // flags
+  assert( rset.closeConnectionOnError() );
+  assert( !rset.mustBeLastInPipeline() );
+  assert( !rset.mustBeFirstInPipeline() );
+
+  // initial state
+  assert( !rset.isComplete() );
+  assert( !rset.doNotExecute( &ts ) );
+  assert( !rset.needsResponse() );
+
+  // dynamics: failure (success is tested with NOOP/QUIT)
+  assert( rset.nextCommandLine( 0 ) == "RSET\r\n" );
+  assert( rset.isComplete() );
+  assert( rset.needsResponse() );
+  r.clear();
+  r.parseLine( "502 command not implemented" );
+  assert( rset.processResponse( r, 0 ) == false );
+  assert( rset.isComplete() );
+  assert( !rset.needsResponse() );
+  assert( smtp.lastErrorCode == 0 ); // an RSET failure isn't worth it, is it?
+  assert( smtp.lastErrorMessage.isNull() );
+
+  //
+  // QUIT
+  //
+
+  smtp.clear();
+  QuitCommand quit( &smtp );
+  // flags
+  assert( quit.closeConnectionOnError() );
+  assert( quit.mustBeLastInPipeline() );
+  assert( !quit.mustBeFirstInPipeline() );
+
+  // initial state
+  assert( !quit.isComplete() );
+  assert( !quit.doNotExecute( 0 ) );
+  assert( !quit.needsResponse() );
+
+  // dynamics 1: success
+  assert( quit.nextCommandLine( 0 ) == "QUIT\r\n" );
+  assert( quit.isComplete() );
+  assert( quit.needsResponse() );
+  r.clear();
+  r.parseLine( "221 Goodbye" );
+  assert( quit.processResponse( r, 0 ) == true );
+  assert( quit.isComplete() );
+  assert( !quit.needsResponse() );
+  assert( smtp.lastErrorCode == 0 );
+  assert( smtp.lastErrorMessage.isNull() );
+
+  // dynamics 2: success
+  smtp.clear();
+  QuitCommand quit2( &smtp );
+  quit2.nextCommandLine( 0 );
+  r.clear();
+  r.parseLine( "500 unknown command" );
+  assert( quit2.processResponse( r, 0 ) == false );
+  assert( quit2.isComplete() );
+  assert( !quit2.needsResponse() );
+  assert( smtp.lastErrorCode == 0 ); // an QUIT failure isn't worth it, is it?
+  assert( smtp.lastErrorMessage.isNull() );
+#endif
+
+  return 0;
+}
+
+void checkSuccessfulTransferCommand( bool error, bool preload, bool ungetLast,
+				     bool slaveDotStuff, bool mailEndsInNewline ) {
+  kdDebug() << "   ===== checkTransferCommand( "
+	    << error << ", "
+	    << preload << ", "
+	    << ungetLast << ", "
+	    << slaveDotStuff << ", "
+	    << mailEndsInNewline << " ) =====" << endl;
+
+  SMTPProtocol smtp;
+  if ( slaveDotStuff )
+    smtp.metadata["lf2crlf+dotstuff"] = "slave";
+
+  Response r;
+
+  const char * s_pre = slaveDotStuff ?
+                         mailEndsInNewline ? foobarbaz_lf : foobarbaz
+                       :
+                         mailEndsInNewline ? foobarbaz_crlf : foobarbaz_dotstuffed ;
+  const unsigned int s_pre_len = tqstrlen( s_pre );
+
+  const char * s_post = mailEndsInNewline ? foobarbaz_crlf : foobarbaz_dotstuffed ;
+  //const unsigned int s_post_len = tqstrlen( s_post );
+
+  TransferCommand xfer( &smtp, preload ? s_post : 0 );
+
+  TransactionState ts;
+  ts.setRecipientAccepted();
+  ts.setDataCommandIssued( true );
+  r.clear();
+  r.parseLine( "354 ok" );
+  ts.setDataCommandSucceeded( true, r );
+  assert( !xfer.doNotExecute( &ts ) );
+  if ( preload ) {
+    assert( xfer.nextCommandLine( &ts ) == s_post );
+    assert( !xfer.isComplete() );
+    assert( !xfer.needsResponse() );
+    assert( !ts.failed() );
+    assert( smtp.lastErrorCode == 0 );
+  }
+  smtp.nextData.duplicate( s_pre, s_pre_len );
+  smtp.nextDataReturnCode = s_pre_len;
+  assert( xfer.nextCommandLine( &ts ) == s_post );
+  assert( !xfer.isComplete() );
+  assert( !xfer.needsResponse() );
+  assert( !ts.failed() );
+  assert( smtp.lastErrorCode == 0 );
+  smtp.nextData.resize( 0 );
+  smtp.nextDataReturnCode = 0;
+  if ( ungetLast ) {
+    xfer.ungetCommandLine( xfer.nextCommandLine( &ts ), &ts );
+    assert( !xfer.isComplete() );
+    assert( !xfer.needsResponse() );
+    assert( !ts.complete() );
+    smtp.nextDataReturnCode = -1; // double read -> error
+  }
+  if ( mailEndsInNewline )
+    assert( xfer.nextCommandLine( &ts ) == ".\r\n" );
+  else
+    assert( xfer.nextCommandLine( &ts ) == "\r\n.\r\n" );
+  assert( xfer.isComplete() );
+  assert( xfer.needsResponse() );
+  assert( !ts.complete() );
+  assert( !ts.failed() );
+  assert( smtp.lastErrorCode == 0 );
+  r.clear();
+  if ( error ) {
+    r.parseLine( "552 Exceeded storage allocation" );
+    assert( xfer.processResponse( r, &ts ) == false );
+    assert( !xfer.needsResponse() );
+    assert( ts.complete() );
+    assert( ts.failed() );
+    assert( smtp.lastErrorCode == TDEIO::ERR_DISK_FULL );
+  } else {
+    r.parseLine( "250 Message accepted" );
+    assert( xfer.processResponse( r, &ts ) == true );
+    assert( !xfer.needsResponse() );
+    assert( ts.complete() );
+    assert( !ts.failed() );
+    assert( smtp.lastErrorCode == 0 );
+  }
+};
+
+#define NDEBUG
+
+#include "command.cc"
+#include "response.cc"
+#include "transactionstate.cc"