/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
 *
 * ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org Code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Geoffrey C. Wenger (gwenger@qualcomm.com)
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of the GNU General Public License Version 2 or later (the "GPL"),
 * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include "nscore.h"
#include "prthread.h"
#include "nsString.h"
#include "nsReadableUtils.h"
#include "nsUnicharUtils.h"
#include "nsCOMPtr.h"
#include "nsIComponentManager.h"
#include "nsIServiceManager.h"
#include "nsIIOService.h"
#include "nsIURI.h"
#include "nsIProxyObjectManager.h"
#include "nsProxiedService.h"
#include "nsIOutputStream.h"

#include "nsMsgBaseCID.h"
#include "nsMsgCompCID.h"

#include "nsIMsgCompose.h"
#include "nsIMsgCompFields.h"
#include "nsIMsgSend.h"
#include "nsIMsgAccountManager.h"
#include "nsMsgI18N.h"

#include "nsNetCID.h"

#include "nsEudoraCompose.h"
#include "nsEudoraEditor.h"

#include "EudoraDebugLog.h"

#include "nsMimeTypes.h"
#include "nsMsgUtils.h"
#include "nsNetUtil.h"
#include "nsAutoPtr.h"

static NS_DEFINE_CID( kMsgSendCID, NS_MSGSEND_CID);
static NS_DEFINE_CID( kMsgCompFieldsCID, NS_MSGCOMPFIELDS_CID);

// We need to do some calculations to set these numbers to something reasonable!
// Unless of course, CreateAndSendMessage will NEVER EVER leave us in the lurch
#define kHungCount 100000
#define kHungAbortCount 1000

// Define maximum possible length for content type sanity check
#define kContentTypeLengthSanityCheck 32


#ifdef IMPORT_DEBUG
static char *p_test_headers =
"Received: from netppl.fi (IDENT:monitor@get.freebsd.because.microsoftsucks.net [209.3.31.115])\n\
 by mail4.sirius.com (8.9.1/8.9.1) with SMTP id PAA27232;\n\
 Mon, 17 May 1999 15:27:43 -0700 (PDT)\n\
Message-ID: <ikGD3jRTsKklU.Ggm2HmE2A1Jsqd0p@netppl.fi>\n\
From: \"adsales@qualityservice.com\" <adsales@qualityservice.com>\n\
Subject: Re: Your College Diploma (36822)\n\
Date: Mon, 17 May 1999 15:09:29 -0400 (EDT)\n\
MIME-Version: 1.0\n\
Content-Type: TEXT/PLAIN; charset=\"US-ASCII\"\n\
Content-Transfer-Encoding: 7bit\n\
X-UIDL: 19990517.152941\n\
Status: RO";

static char *p_test_body =
"Hello world?\n\
";
#else
#define p_test_headers nsnull
#define p_test_body nsnull
#endif


#define kWhitespace "\b\t\r\n "

// The identity that we use in SendTheMessage is now a static. Previously the
// identity was being created and destroyed for every Eudora message imported.
// Now we create the identity when needed and keep it around until ReleaseIdentity
// is called (after Eudora email importing is complete - currently called in
// ~ImportEudoraMailImpl).
//
// This change was identified via profiling and has sped up importing email
// from Eudora over 5x on my computer (test importing of my email went from
// 6.5 hours to less than 1.2 hours). Importing from Eudora is still slow
// in my opinion, but bearably slow now.
nsIMsgIdentity * nsEudoraCompose::s_pIdentity = nsnull;


// First off, a listener
class EudoraSendListener : public nsIMsgSendListener
{
public:
  EudoraSendListener() {
    m_done = PR_FALSE;
  }

  virtual ~EudoraSendListener() {}

  // nsISupports interface
  NS_DECL_ISUPPORTS

  /* void OnStartSending (in string aMsgID, in PRUint32 aMsgSize); */
  NS_IMETHOD OnStartSending(const char *aMsgID, PRUint32 aMsgSize) {return NS_OK;}

  /* void OnProgress (in string aMsgID, in PRUint32 aProgress, in PRUint32 aProgressMax); */
  NS_IMETHOD OnProgress(const char *aMsgID, PRUint32 aProgress, PRUint32 aProgressMax) {return NS_OK;}

  /* void OnStatus (in string aMsgID, in wstring aMsg); */
  NS_IMETHOD OnStatus(const char *aMsgID, const PRUnichar *aMsg) {return NS_OK;}

  /* void OnStopSending (in string aMsgID, in nsresult aStatus, in wstring aMsg, in nsIFile returnFile); */
  NS_IMETHOD OnStopSending(const char *aMsgID, nsresult aStatus, const PRUnichar *aMsg,
               nsIFile *returnFile) {
    m_done = PR_TRUE;
    m_location = returnFile;
    return NS_OK;
  }

    /* void OnSendNotPerformed */
    NS_IMETHOD OnSendNotPerformed(const char *aMsgID, nsresult aStatus) {return NS_OK;}

  /* void OnGetDraftFolderURI (); */
  NS_IMETHOD OnGetDraftFolderURI(const char *aFolderURI) {return NS_OK;}

  static nsresult CreateSendListener( nsIMsgSendListener **ppListener);

  void Reset() { m_done = PR_FALSE;  m_location = nsnull;}

public:
  PRBool m_done;
  nsCOMPtr <nsIFile> m_location;
};


NS_IMPL_THREADSAFE_ISUPPORTS1(EudoraSendListener, nsIMsgSendListener)

nsresult EudoraSendListener::CreateSendListener( nsIMsgSendListener **ppListener)
{
  NS_ENSURE_ARG_POINTER(ppListener);
  *ppListener = new EudoraSendListener();
  NS_ENSURE_TRUE(*ppListener, NS_ERROR_OUT_OF_MEMORY);
  NS_ADDREF(*ppListener);
  return NS_OK;
}


/////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////////////////



nsEudoraCompose::nsEudoraCompose()
{
  m_pIOService = nsnull;
  m_pAttachments = nsnull;
  m_pListener = nsnull;
  m_pMsgSend = nsnull;
  m_pSendProxy = nsnull;
  m_pMsgFields = nsnull;
  m_pHeaders = p_test_headers;
  if (m_pHeaders)
    m_headerLen = strlen( m_pHeaders);
  else
    m_headerLen = 0;
  m_pBody = p_test_body;
  if (m_pBody)
    m_bodyLen = strlen( m_pBody);
  else
    m_bodyLen = 0;

  m_readHeaders.m_convertCRs = PR_TRUE;
}


nsEudoraCompose::~nsEudoraCompose()
{
  NS_IF_RELEASE( m_pSendProxy);
  NS_IF_RELEASE( m_pIOService);
  NS_IF_RELEASE( m_pMsgSend);
  NS_IF_RELEASE( m_pListener);
  NS_IF_RELEASE( m_pMsgFields);
}

nsresult nsEudoraCompose::CreateIdentity( void)
{
  if (s_pIdentity)
    return( NS_OK);

  nsresult  rv;
  NS_WITH_PROXIED_SERVICE(nsIMsgAccountManager, accMgr, NS_MSGACCOUNTMANAGER_CONTRACTID, NS_PROXY_TO_MAIN_THREAD, &rv);
  if (NS_FAILED(rv)) return( rv);
  rv = accMgr->CreateIdentity( &s_pIdentity);
  nsString name(NS_LITERAL_STRING("Import Identity"));
  if (s_pIdentity) {
    s_pIdentity->SetFullName(name);
    s_pIdentity->SetIdentityName(name);
    s_pIdentity->SetEmail(NS_LITERAL_CSTRING("import@import.service"));

    // SetDoFcc to PR_FALSE to save time when CreateAndSendMessage operates.
    // Profiling revealed that GetFolderURIFromUserPrefs was taking up a significant chunk
    // of time during the operation of CreateAndSendMessage. By calling SetDoFcc(PR_FALSE),
    // we skip Fcc handling code inside of InitCompositionFields (called indirectly during
    // CreateAndSendMessage operation). There's no point in any Fcc code firing since the
    // message will never actually be sent anyway.
    s_pIdentity->SetDoFcc(PR_FALSE);
  }
  return( rv);
}

void nsEudoraCompose::ReleaseIdentity( void)
{
  if (s_pIdentity) {
    nsresult rv = s_pIdentity->ClearAllValues();
    NS_ASSERTION(NS_SUCCEEDED(rv),"failed to clear values");
    if (NS_FAILED(rv)) return;

    NS_RELEASE(s_pIdentity);
  }
}


nsresult nsEudoraCompose::CreateComponents( void)
{
  nsresult  rv = NS_OK;

  if (!m_pIOService) {
    IMPORT_LOG0( "Creating nsIOService\n");

    NS_WITH_PROXIED_SERVICE(nsIIOService, service, NS_IOSERVICE_CONTRACTID, NS_PROXY_TO_MAIN_THREAD, &rv);
    if (NS_FAILED(rv))
      return( rv);
    m_pIOService = service;
    NS_IF_ADDREF( m_pIOService);
  }

  NS_IF_RELEASE( m_pMsgFields);
  if (!m_pMsgSend) {
    rv = CallCreateInstance( kMsgSendCID, &m_pMsgSend);
    if (NS_SUCCEEDED( rv) && m_pMsgSend) {
      rv = NS_GetProxyForObject( NS_PROXY_TO_MAIN_THREAD, NS_GET_IID(nsIMsgSend),
                  m_pMsgSend, NS_PROXY_SYNC, (void**)&m_pSendProxy);
      if (NS_FAILED( rv)) {
        m_pSendProxy = nsnull;
        NS_RELEASE( m_pMsgSend);
        m_pMsgSend = nsnull;
      }
    }
  }
  if (!m_pListener && NS_SUCCEEDED( rv)) {
    rv = EudoraSendListener::CreateSendListener( &m_pListener);
  }

  if (NS_SUCCEEDED(rv) && m_pMsgSend) {
      rv = CallCreateInstance( kMsgCompFieldsCID, &m_pMsgFields);
    if (NS_SUCCEEDED(rv) && m_pMsgFields) {
      // IMPORT_LOG0( "nsOutlookCompose - CreateComponents succeeded\n");
      m_pMsgFields->SetForcePlainText( PR_FALSE);
      return( NS_OK);
    }
  }

  return NS_ERROR_FAILURE;
}

void nsEudoraCompose::GetNthHeader( const char *pData, PRInt32 dataLen, PRInt32 n, nsCString& header, nsCString& val, PRBool unwrap)
{
  header.Truncate();
  val.Truncate();
  if (!pData)
    return;

  PRInt32 index = 0;
  PRInt32 len;
  PRInt32 start = 0;
  const char *pChar = pData;
  const char *pStart;
  if (n == 0) {
    pStart = pChar;
    len = 0;
    while ((start < dataLen) && (*pChar != ':')) {
      start++;
      len++;
      pChar++;
    }
    header.Append( pStart, len);
    header.Trim( kWhitespace);
    start++;
    pChar++;
  }
  else {
    while (start < dataLen) {
      if ((*pChar != ' ') && (*pChar != 9)) {
        if (n == index) {
          pStart = pChar;
          len = 0;
          while ((start < dataLen) && (*pChar != ':')) {
            start++;
            len++;
            pChar++;
          }
          header.Append( pStart, len);
          header.Trim( kWhitespace);
          start++;
          pChar++;
          break;
        }
        else
          index++;
      }

      while ((start < dataLen) && (*pChar != 0x0D) && (*pChar != 0x0A)) {
        start++;
        pChar++;
      }
      while ((start < dataLen) && ((*pChar == 0x0D) || (*pChar == 0x0A))) {
        start++;
        pChar++;
      }
    }
  }

  if (start >= dataLen)
    return;

  PRInt32 lineEnd;
  PRInt32 end = start;
  while (end < dataLen) {
    while ((end < dataLen) && (*pChar != 0x0D) && (*pChar != 0x0A)) {
      end++;
      pChar++;
    }
    if (end > start) {
      val.Append( pData + start, end - start);
    }

    lineEnd = end;
    pStart = pChar;
    while ((end < dataLen) && ((*pChar == 0x0D) || (*pChar == 0x0A))) {
      end++;
      pChar++;
    }

    start = end;

    while ((end < dataLen) && ((*pChar == ' ') || (*pChar == '\t'))) {
      end++;
      pChar++;
    }

    if (start == end)
      break;

    if (unwrap)
      val.Append( ' ');
    else {
      val.Append( pStart, end - lineEnd);
    }

    start = end;
  }

  val.Trim( kWhitespace);
}


void nsEudoraCompose::GetHeaderValue( const char *pData, PRInt32 dataLen, const char *pHeader, nsCString& val, PRBool unwrap)
{
  val.Truncate();
  if (!pData)
    return;

  PRInt32  start = 0;
  PRInt32 len = strlen( pHeader);
  const char *pChar = pData;
  if (!PL_strncasecmp( pHeader, pData, len)) {
    start = len;
  }
  else {
    while (start < dataLen) {
      while ((start < dataLen) && (*pChar != 0x0D) && (*pChar != 0x0A)) {
        start++;
        pChar++;
      }
      while ((start < dataLen) && ((*pChar == 0x0D) || (*pChar == 0x0A))) {
        start++;
        pChar++;
      }
      if ((start < dataLen) && !PL_strncasecmp( pChar, pHeader, len))
        break;
    }
    if (start < dataLen)
      start += len;
  }

  if (start >= dataLen)
    return;

  PRInt32 end = start;
  PRInt32 lineEnd;
  const char * pStart;

  pChar = pData + start;

  while (end < dataLen) {
    while ((end < dataLen) && (*pChar != 0x0D) && (*pChar != 0x0A)) {
      end++;
      pChar++;
    }
    if (end > start) {
      val.Append( pData + start, end - start);
    }

    lineEnd = end;
    pStart = pChar;
    while ((end < dataLen) && ((*pChar == 0x0D) || (*pChar == 0x0A))) {
      end++;
      pChar++;
    }

    start = end;

    while ((end < dataLen) && ((*pChar == ' ') || (*pChar == '\t'))) {
      end++;
      pChar++;
    }

    if (start == end)
      break;

    if (unwrap)
      val.Append( ' ');
    else {
      val.Append( pStart, end - lineEnd);
    }

    start = end;
  }

  val.Trim( kWhitespace);
}


void nsEudoraCompose::ExtractCharset( nsString& str)
{
  nsString tStr;
  PRInt32 idx = str.Find( "charset=", PR_TRUE);
  if (idx != -1) {
    idx += 8;
    str.Right( tStr, str.Length() - idx);
    idx = tStr.FindChar( ';');
    if (idx != -1)
      tStr.Left( str, idx);
    else
      str = tStr;
    str.Trim( kWhitespace);
    if ((str.CharAt( 0) == '"') && (str.Length() > 2)) {
      str.Mid( tStr, 1, str.Length() - 2);
      str = tStr;
      str.Trim( kWhitespace);
    }
  }
  else
    str.Truncate();
}

void nsEudoraCompose::ExtractType( nsString& str)
{
  nsString tStr;
  PRInt32 idx = str.FindChar( ';');
  if (idx != -1) {
    str.Left( tStr, idx);
    str = tStr;
  }
  str.Trim( kWhitespace);

  if ((str.CharAt( 0) == '"') && (str.Length() > 2)) {
    str.Mid( tStr, 1, str.Length() - 2);
    str = tStr;
    str.Trim( kWhitespace);
  }

  // if multipart then ignore it since no outlook message body is ever
  // valid multipart!
  if (str.Length() > 10) {
    str.Left( tStr, 10);
    if (tStr.LowerCaseEqualsLiteral("multipart/"))
      str.Truncate();
  }
}

void nsEudoraCompose::CleanUpAttach( nsMsgAttachedFile *a, PRInt32 count)
{
  for (PRInt32 i = 0; i < count; i++) {
    a[i].orig_url=nsnull;
    if (a[i].type)
      NS_Free( a[i].type);
    if (a[i].description)
      NS_Free( a[i].description);
    if (a[i].encoding)
      NS_Free( a[i].encoding);
  }
  delete [] a;
}

nsMsgAttachedFile * nsEudoraCompose::GetLocalAttachments( void)
{
  /*
  nsIURI      *url = nsnull;
  */

  PRInt32 count = 0;
  if (m_pAttachments)
    count = m_pAttachments->Count();
  if (!count)
    return( nsnull);

  nsMsgAttachedFile *a = (nsMsgAttachedFile *) new nsMsgAttachedFile[count + 1];
  if (!a)
    return( nsnull);
  memset(a, 0, sizeof(nsMsgAttachedFile) * (count + 1));

  nsCString urlStr;
  ImportAttachment * pAttach;

  for (PRInt32 i = 0; i < count; i++) {
    // nsMsgNewURL(&url, "file://C:/boxster.jpg");
    // a[i].orig_url = url;

    // NS_PRECONDITION( PR_FALSE, "Forced Break");

    pAttach = (ImportAttachment *) m_pAttachments->ElementAt( i);
                a[i].tmp_file = do_QueryInterface(pAttach->pAttachment);
    urlStr.Adopt(0);

    nsCOMPtr <nsIURI> uri;
    nsresult rv = NS_NewFileURI(getter_AddRefs(uri), pAttach->pAttachment);
    NS_ENSURE_SUCCESS(rv, nsnull);
    uri->GetSpec(urlStr);
    if (urlStr.IsEmpty()) {
      CleanUpAttach( a, count);
      return( nsnull);
    }
    rv = m_pIOService->NewURI( urlStr, nsnull, nsnull, getter_AddRefs(a[i].orig_url));
    if (NS_FAILED( rv)) {
      CleanUpAttach( a, count);
      return( nsnull);
    }

    a[i].type = strdup( pAttach->mimeType);
    a[i].real_name = strdup( pAttach->description);
    a[i].encoding = strdup( ENCODING_BINARY);
  }

  return( a);
}

// Test a message send????
nsresult nsEudoraCompose::SendTheMessage(nsIFile *pMailImportLocation, nsIFile **pMsg)
{
  nsresult rv = CreateComponents();
  if (NS_SUCCEEDED( rv))
    rv = CreateIdentity();
  if (NS_FAILED( rv))
    return( rv);

  // IMPORT_LOG0( "Outlook Compose created necessary components\n");

  nsString bodyType;
  nsString charSet;
  nsString headerVal;
  GetHeaderValue( m_pHeaders, m_headerLen, "From:", headerVal);
  if (!headerVal.IsEmpty())
    m_pMsgFields->SetFrom( headerVal);
  GetHeaderValue( m_pHeaders, m_headerLen, "To:", headerVal);
  if (!headerVal.IsEmpty())
    m_pMsgFields->SetTo( headerVal);
  GetHeaderValue( m_pHeaders, m_headerLen, "Subject:", headerVal);
  if (!headerVal.IsEmpty())
    m_pMsgFields->SetSubject( headerVal);
  GetHeaderValue( m_pHeaders, m_headerLen, "Content-type:", headerVal);
  bodyType = headerVal;
  ExtractType( bodyType);
  ExtractCharset( headerVal);
  // Use platform charset as default if the msg doesn't specify one
  // (ie, no 'charset' param in the Content-Type: header). As the last
  // resort we'll use the mail default charset.
  // (ie, no 'charset' param in the Content-Type: header) or if the
  // charset parameter fails a length sanity check.
  // As the last resort we'll use the mail default charset.
  if ( headerVal.IsEmpty() || (headerVal.Length() > kContentTypeLengthSanityCheck) )
  {
    CopyASCIItoUTF16(nsMsgI18NFileSystemCharset(), headerVal);
    if (headerVal.IsEmpty())
    { // last resort
      if (m_defCharset.IsEmpty())
      {
        nsString defaultCharset;
        NS_GetLocalizedUnicharPreferenceWithDefault(nsnull, "mailnews.view_default_charset",
                                                    NS_LITERAL_STRING("ISO-8859-1"), defaultCharset);
        m_defCharset = defaultCharset;
      }
      headerVal = m_defCharset;
    }
  }
  m_pMsgFields->SetCharacterSet( NS_LossyConvertUTF16toASCII(headerVal).get() );
  charSet = headerVal;
  GetHeaderValue( m_pHeaders, m_headerLen, "CC:", headerVal);
  if (!headerVal.IsEmpty())
    m_pMsgFields->SetCc( headerVal);
  GetHeaderValue( m_pHeaders, m_headerLen, "Message-ID:", headerVal);
  if (!headerVal.IsEmpty())
    m_pMsgFields->SetMessageId( NS_LossyConvertUTF16toASCII(headerVal).get() );
  GetHeaderValue( m_pHeaders, m_headerLen, "Reply-To:", headerVal);
  if (!headerVal.IsEmpty())
    m_pMsgFields->SetReplyTo( headerVal);

  // what about all of the other headers?!?!?!?!?!?!
  char *pMimeType;
  if (!bodyType.IsEmpty())
    pMimeType = ToNewCString(bodyType);
  else
    pMimeType = ToNewCString(m_bodyType);

  // IMPORT_LOG0( "Outlook compose calling CreateAndSendMessage\n");
  nsMsgAttachedFile *pAttach = GetLocalAttachments();


  /*
    l10n - I have the body of the message in the system charset,
    I need to "encode" it to be the charset for the message
    *UNLESS* of course, I don't know what the charset of the message
    should be?  How do I determine what the charset should
    be if it doesn't exist?

  */

  nsString uniBody;
  NS_CopyNativeToUnicode( nsDependentCString(m_pBody), uniBody);

  nsCString body;

  rv = nsMsgI18NConvertFromUnicode( NS_LossyConvertUTF16toASCII(charSet).get(),
                                    uniBody, body);
  if (NS_FAILED( rv)) {
    // in this case, if we did not use the default compose
    // charset, then try that.
    if (!charSet.Equals( m_defCharset)) {
      body.Truncate();
      rv = nsMsgI18NConvertFromUnicode( NS_LossyConvertUTF16toASCII(charSet).get(),
                                        uniBody, body);
    }
  }
  uniBody.Truncate();


  // See if it's a draft msg (ie, no From: or no To: AND no Cc: AND no Bcc:).
  // Eudora saves sent and draft msgs in Out folder (ie, mixed) and it does
  // store Bcc: header in the msg itself.
  nsMsgDeliverMode mode = nsIMsgSend::nsMsgDeliverNow;
  nsAutoString from, to, cc, bcc;
  rv = m_pMsgFields->GetFrom(from);
  rv = m_pMsgFields->GetTo(to);
  rv = m_pMsgFields->GetCc(cc);
  rv = m_pMsgFields->GetBcc(bcc);
  if ( from.IsEmpty() || to.IsEmpty() && cc.IsEmpty() && bcc.IsEmpty() )
    mode = nsIMsgSend::nsMsgSaveAsDraft;

  // We only get the editor interface when there's embedded content.
  // Otherwise pEditor remains NULL. That way we only import with the pseudo
  // editor when it helps.
  nsRefPtr<nsEudoraEditor>  pEudoraEditor = new nsEudoraEditor(m_pBody, pMailImportLocation);
  nsCOMPtr<nsIEditor>       pEditor;

  if (pEudoraEditor->HasEmbeddedContent())
    // There's embedded content that we need to import, so query for the editor interface
    pEudoraEditor->QueryInterface( NS_GET_IID(nsIEditor), getter_AddRefs(pEditor) );

  if (NS_FAILED( rv)) {

    rv = m_pSendProxy->CreateAndSendMessage(
                          pEditor.get(),                // pseudo editor shell when there's embedded content
                          s_pIdentity,                  // dummy identity
                          nsnull,                       // account key
                          m_pMsgFields,                 // message fields
                          PR_FALSE,                     // digest = NO
                          PR_TRUE,                      // dont_deliver = YES, make a file
                          mode,                         // mode
                          nsnull,                       // no message to replace
                          pMimeType,                    // body type
                          m_pBody,                      // body pointer
                          m_bodyLen,                    // body length
                          nsnull,                       // remote attachment data
                          pAttach,                      // local attachments
                          nsnull,                       // related part
                          nsnull,                       // parent window
                          nsnull,                       // progress listener
                          m_pListener,                  // listener
                          nsnull,                       // password
                          EmptyCString(),               // originalMsgURI
                          nsnull);                      // message compose type

  }
  else {
    rv = m_pSendProxy->CreateAndSendMessage(
                          pEditor.get(),                // pseudo editor shell when there's embedded content
                          s_pIdentity,                  // dummy identity
                          nsnull,                       // account key
                          m_pMsgFields,                 // message fields
                          PR_FALSE,                     // digest = NO
                          PR_TRUE,                      // dont_deliver = YES, make a file
                          mode,                         // mode
                          nsnull,                       // no message to replace
                          pMimeType,                    // body type
                          body.get(),                   // body pointer
                          body.Length(),                // body length
                          nsnull,                       // remote attachment data
                          pAttach,                      // local attachments
                          nsnull,                       // related part
                          nsnull,                       // parent window
                          nsnull,                       // progress listener
                          m_pListener,                  // listener
                          nsnull,                       // password
                          EmptyCString(),               // originalMsgURI
                          nsnull);                      // message compose type

  }

  // IMPORT_LOG0( "Returned from CreateAndSendMessage\n");

  if (pAttach)
    delete [] pAttach;

  EudoraSendListener *pListen = (EudoraSendListener *)m_pListener;
  if (NS_FAILED( rv)) {
    IMPORT_LOG1( "*** Error, CreateAndSendMessage FAILED: 0x%lx\n", rv);
    // IMPORT_LOG1( "Headers: %80s\n", m_pHeaders);
  }
  else {
    // wait for the listener to get done!
    PRInt32 abortCnt = 0;
    PRInt32 cnt = 0;
    PRInt32 sleepCnt = 1;
    while (!pListen->m_done && (abortCnt < kHungAbortCount)) {
      PR_Sleep( sleepCnt);
      cnt++;
      if (cnt > kHungCount) {
        abortCnt++;
        sleepCnt *= 2;
        cnt = 0;
      }
    }

    if (abortCnt >= kHungAbortCount) {
      IMPORT_LOG0( "**** Create and send message hung\n");
      IMPORT_LOG1( "Headers: %s\n", m_pHeaders);
      IMPORT_LOG1( "Body: %s\n", m_pBody);
      rv = NS_ERROR_FAILURE;
    }

  }

  if (pMimeType)
    NS_Free( pMimeType);

  if (pListen->m_location) {
    pListen->m_location->Clone(pMsg);
    rv = NS_OK;
  }
  else {
    rv = NS_ERROR_FAILURE;
    IMPORT_LOG0( "*** Error, Outlook compose unsuccessful\n");
  }

  pListen->Reset();

  return( rv);
}


PRBool SimpleBufferTonyRCopiedOnce::SpecialMemCpy( PRInt32 offset, const char *pData, PRInt32 len, PRInt32 *pWritten)
{
  // Arg!!!!!  Mozilla can't handle plain CRs in any mail messages.  Particularly a
  // problem with Eudora since it doesn't give a rats a**
  *pWritten = len;
  PRInt32  sz = offset + len;
  if (offset) {
    if ((m_pBuffer[offset - 1] == 0x0D) && (*pData != 0x0A)) {
      sz++;
      if (!Grow( sz)) return( PR_FALSE);
      m_pBuffer[offset] = 0x0A;
      offset++;
      (*pWritten)++;
    }
  }
  while (len > 0) {
    if ((*pData == 0x0D) && (*(pData + 1) != 0x0A)) {
      sz++;
      if (!Grow( sz)) return( PR_FALSE);
      m_pBuffer[offset] = 0x0D;
      offset++;
      m_pBuffer[offset] = 0x0A;
      (*pWritten)++;
    }
    else {
      m_pBuffer[offset] = *pData;
    }
    offset++;
    pData++;
    len--;
  }

  return( PR_TRUE);
}

nsresult nsEudoraCompose::ReadHeaders( ReadFileState *pState, SimpleBufferTonyRCopiedOnce& copy, SimpleBufferTonyRCopiedOnce& header)
{
  // This should be the headers...
  header.m_writeOffset = 0;

  nsresult rv;
  PRInt32 lineLen;
  PRInt32 endLen = -1;
  PRInt8 endBuffer = 0;

  while ((endLen = IsEndHeaders( copy)) == -1) {
    while ((lineLen = FindNextEndLine( copy)) == -1) {
      copy.m_writeOffset = copy.m_bytesInBuf;
      if (!header.Write( copy.m_pBuffer, copy.m_writeOffset)) {
        IMPORT_LOG0( "*** ERROR, writing headers\n");
        return( NS_ERROR_FAILURE);
      }
      if (NS_FAILED( rv = FillMailBuffer( pState, copy))) {
        IMPORT_LOG0( "*** Error reading message headers\n");
        return( rv);
      }
      if (!copy.m_bytesInBuf) {
        IMPORT_LOG0( "*** Error, end of file while reading headers\n");
        return( NS_ERROR_FAILURE);
      }
    }
    copy.m_writeOffset += lineLen;
    if ((copy.m_writeOffset + 4) >= copy.m_bytesInBuf) {
      if (!header.Write( copy.m_pBuffer, copy.m_writeOffset)) {
        IMPORT_LOG0( "*** ERROR, writing headers 2\n");
        return( NS_ERROR_FAILURE);
      }
      if (NS_FAILED( rv = FillMailBuffer( pState, copy))) {
        IMPORT_LOG0( "*** Error reading message headers 2\n");
        return( rv);
      }
    }
  }

  if (!header.Write( copy.m_pBuffer, copy.m_writeOffset)) {
    IMPORT_LOG0( "*** Error writing final headers\n");
    return( NS_ERROR_FAILURE);
  }
  if (!header.Write( (const char *)&endBuffer, 1)) {
    IMPORT_LOG0( "*** Error writing header trailing null\n");
    return( NS_ERROR_FAILURE);
  }

  copy.m_writeOffset += endLen;

  return( NS_OK);
}

PRInt32 nsEudoraCompose::FindNextEndLine( SimpleBufferTonyRCopiedOnce& data)
{
  PRInt32 len = data.m_bytesInBuf - data.m_writeOffset;
  if (!len)
    return( -1);
  PRInt32  count = 0;
  const char *pData = data.m_pBuffer + data.m_writeOffset;
  while (((*pData == 0x0D) || (*pData == 0x0A)) && (count < len)) {
    pData++;
    count++;
  }
  while ((*pData != 0x0D) && (*pData != 0x0A) && (count < len)) {
    pData++;
    count++;
  }

  if (count < len)
    return( count);

  return( -1);
}

PRInt32 nsEudoraCompose::IsEndHeaders( SimpleBufferTonyRCopiedOnce& data)
{
  PRInt32 len = data.m_bytesInBuf - data.m_writeOffset;
  if (len < 2)
    return( -1);
  const char *pChar = data.m_pBuffer + data.m_writeOffset;
  if ((*pChar == 0x0D) && (*(pChar + 1) == 0x0D))
    return( 2);

  if (len < 4)
    return( -1);
  if ((*pChar == 0x0D) && (*(pChar + 1) == 0x0A) &&
    (*(pChar + 2) == 0x0D) && (*(pChar + 3) == 0x0A))
    return( 4);
  return( -1);
}


nsresult nsEudoraCompose::CopyComposedMessage( nsCString& fromLine, nsIFile *pSrc, nsIOutputStream *pDst, SimpleBufferTonyRCopiedOnce& copy)
{
  copy.m_bytesInBuf = 0;
  copy.m_writeOffset = 0;
  ReadFileState  state;
  state.pFile = pSrc;
  state.offset = 0;
  state.size = 0;

  pSrc->GetFileSize( &state.size);
  if (!state.size) {
    IMPORT_LOG0( "*** Error, unexpected zero file size for composed message\n");
    return( NS_ERROR_FAILURE);
  }

        nsresult rv = NS_NewLocalFileInputStream(getter_AddRefs(state.pInputStream), pSrc);

  if (NS_FAILED( rv)) {
    IMPORT_LOG0( "*** Error, unable to open composed message file\n");
    return( NS_ERROR_FAILURE);
  }

  PRUint32 written;
  rv = pDst->Write( fromLine.get(), fromLine.Length(), &written);

  // well, isn't this a hoot!
  // Read the headers from the new message, get the ones we like
  // and write out only the headers we want from the new message,
  // along with all of the other headers from the "old" message!
  if (NS_SUCCEEDED( rv))
    rv = FillMailBuffer( &state, copy);
  if (NS_SUCCEEDED( rv))
    rv = ReadHeaders( &state, copy, m_readHeaders);

  if (NS_SUCCEEDED( rv)) {
    rv = WriteHeaders( pDst, m_readHeaders);
  }

  // We need to go ahead and write out the rest of the copy buffer
  // so that the following will properly copy the rest of the body
  char lastChar = 0;

  rv = EscapeFromSpaceLine(pDst, copy.m_pBuffer + copy.m_writeOffset, copy.m_pBuffer+copy.m_bytesInBuf);
  if (copy.m_bytesInBuf)
    lastChar = copy.m_pBuffer[copy.m_bytesInBuf - 1];
  if (NS_SUCCEEDED(rv))
    copy.m_writeOffset = copy.m_bytesInBuf;

  while ((state.offset < state.size) && NS_SUCCEEDED( rv)) {
    rv = FillMailBuffer( &state, copy);
    if (NS_SUCCEEDED( rv)) {
      rv = EscapeFromSpaceLine(pDst, copy.m_pBuffer + copy.m_writeOffset, copy.m_pBuffer+copy.m_bytesInBuf);
      lastChar = copy.m_pBuffer[copy.m_bytesInBuf - 1];
      if (NS_SUCCEEDED( rv))
        copy.m_writeOffset = copy.m_bytesInBuf;
      else
        IMPORT_LOG0( "*** Error writing to destination mailbox\n");
    }
  }

  state.pInputStream->Close();

  if ((lastChar != 0x0A) && NS_SUCCEEDED( rv)) {
    rv = pDst->Write( "\x0D\x0A", 2, &written);
    if (written != 2)
      rv = NS_ERROR_FAILURE;
  }

  return( rv);
}

nsresult nsEudoraCompose::FillMailBuffer( ReadFileState *pState, SimpleBufferTonyRCopiedOnce& read)
{
  if (read.m_writeOffset >= read.m_bytesInBuf) {
    read.m_writeOffset = 0;
    read.m_bytesInBuf = 0;
  }
  else if (read.m_writeOffset) {
    memcpy( read.m_pBuffer, read.m_pBuffer + read.m_writeOffset, read.m_bytesInBuf - read.m_writeOffset);
    read.m_bytesInBuf -= read.m_writeOffset;
    read.m_writeOffset = 0;
  }

  PRUint32 count = read.m_size - read.m_bytesInBuf;
  if ((count + pState->offset) > pState->size)
    count = pState->size - pState->offset;
  if (count) {
    PRUint32 bytesRead = 0;
    char * pBuffer = read.m_pBuffer + read.m_bytesInBuf;
    nsresult rv = pState->pInputStream->Read(pBuffer, count, &bytesRead);
    if (NS_FAILED( rv)) return( rv);
    if (bytesRead != count) return( NS_ERROR_FAILURE);
    read.m_bytesInBuf += bytesRead;
    pState->offset += bytesRead;
  }

  return( NS_OK);
}


#define kMaxSpecialHeaders 3
static const char *gSpecialHeaders[kMaxSpecialHeaders] = {
  "Content-type",
  "MIME-Version",
  "Content-transfer-encoding"
};
// consider "X-Accept-Language"?

#define kMaxReplaceHeaders 5
static const char *gReplaceHeaders[kMaxReplaceHeaders] = {
  "From",
  "To",
  "Subject",
  "Reply-to",
  "cc"
};

PRBool nsEudoraCompose::IsReplaceHeader( const char *pHeader)
{
  for (int i = 0; i < kMaxReplaceHeaders; i++) {
    if (!PL_strcasecmp( pHeader, gReplaceHeaders[i]))
      return( PR_TRUE);
  }

  return( PR_FALSE);
}

PRInt32 nsEudoraCompose::IsSpecialHeader( const char *pHeader)
{
  for (int i = 0; i < kMaxSpecialHeaders; i++) {
    if (!PL_strcasecmp( pHeader, gSpecialHeaders[i]))
      return( (PRInt32) i);
  }

  return( -1);
}


nsresult nsEudoraCompose::WriteHeaders(nsIOutputStream *pDst, SimpleBufferTonyRCopiedOnce& newHeaders)
{
  // Well, ain't this a peach?
  // This is rather disgusting but there really isn't much to be done about it....

  // 1. For each "old" header, replace it with the new one if we want,
  // then right it out.
  // 2. Then if we haven't written the "important" new headers, write them out
  // 3. Terminate the headers with an extra eol.

  PRInt32 n = 0;
  nsCString header;
  nsCString val;
  nsCString replaceVal;
  PRUint32 written;
  nsresult rv = NS_OK; // it's ok if we don't have the first header on the predefined lists.
  PRInt32 specialHeader;
  PRBool specials[kMaxSpecialHeaders];
  PRBool    hasDateHeader = PR_FALSE;
  int i;

  for (i = 0; i < kMaxSpecialHeaders; i++)
    specials[i] = PR_FALSE;

  // m_pHeaders - contains headers from a Eudora msg.
  // newHeaders - contains headers from a mozilla msg (more headers here).
  do {
    GetNthHeader( m_pHeaders, m_headerLen, n, header, val, PR_FALSE);
    // GetNthHeader( newHeaders.m_pBuffer, newHeaders.m_writeOffset, n, header, val, PR_FALSE);
    if (!header.IsEmpty()) {
      if ((specialHeader = IsSpecialHeader( header.get())) != -1) {
        header.Append( ':');
        GetHeaderValue( newHeaders.m_pBuffer, newHeaders.m_writeOffset - 1, header.get(), val, PR_FALSE);
        header.SetLength( header.Length() - 1);
        specials[specialHeader] = PR_TRUE;
      }
      else if (IsReplaceHeader( header.get())) {
        replaceVal.Truncate();
        header.Append( ':');
        GetHeaderValue( newHeaders.m_pBuffer, newHeaders.m_writeOffset - 1, header.get(), replaceVal, PR_FALSE);
        header.SetLength( header.Length() - 1);
        if (!replaceVal.IsEmpty())
          val = replaceVal;
      }
      if (!val.IsEmpty()) {
        // See if we're writing out a Date: header.
        if (header.LowerCaseEqualsLiteral("date"))
          hasDateHeader = PR_TRUE;
        rv = pDst->Write( header.get(), header.Length(), &written);
        if (NS_SUCCEEDED( rv))
          rv = pDst->Write( ": ", 2, &written);
        if (NS_SUCCEEDED( rv))
          rv = pDst->Write( val.get(), val.Length(), &written);
        if (NS_SUCCEEDED( rv))
          rv = pDst->Write( "\x0D\x0A", 2, &written);

      }
    }
    n++;
  } while (NS_SUCCEEDED( rv) && !header.IsEmpty());

  // If we don't have Date: header so far then use the default one (taken from Eudora "From " line).
  if (!hasDateHeader)
  {
    rv = pDst->Write(m_defaultDate.get(), m_defaultDate.Length(), &written);
    if (NS_SUCCEEDED( rv))
      rv = pDst->Write( "\x0D\x0A", 2, &written);
  }

  for (i = 0; (i < kMaxSpecialHeaders) && NS_SUCCEEDED( rv); i++) {
    if (!specials[i]) {
      header = gSpecialHeaders[i];
      header.Append( ':');
      GetHeaderValue( newHeaders.m_pBuffer, newHeaders.m_writeOffset - 1, header.get(), val, PR_FALSE);
      header.SetLength( header.Length() - 1);
      if (!val.IsEmpty()) {
        rv = pDst->Write( header.get(), header.Length(), &written);
        if (NS_SUCCEEDED( rv))
          rv = pDst->Write( ": ", 2, &written);
        if (NS_SUCCEEDED( rv))
          rv = pDst->Write( val.get(), val.Length(), &written);
        if (NS_SUCCEEDED( rv))
          rv = pDst->Write( "\x0D\x0A", 2, &written);
      }
    }
  }

  if (NS_SUCCEEDED( rv))
    rv = pDst->Write( "\x0D\x0A", 2, &written);
  return( rv);
}


