/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "nsMsgCompose.h"
#include "nsIDOMDocument.h"
#include "nsIDOMNode.h"
#include "nsIDOMNodeList.h"
#include "nsIDOMText.h"
#include "nsIDOMHTMLImageElement.h"
#include "nsIDOMHTMLLinkElement.h"
#include "nsIDOMHTMLAnchorElement.h"
#include "nsPIDOMWindow.h"
#include "mozIDOMWindow.h"
#include "nsISelectionController.h"
#include "nsMsgI18N.h"
#include "nsMsgCompCID.h"
#include "nsMsgQuote.h"
#include "nsIPrefService.h"
#include "nsIPrefBranch.h"
#include "nsIDocumentEncoder.h"    // for editor output flags
#include "nsMsgCompUtils.h"
#include "nsComposeStrings.h"
#include "nsIMsgSend.h"
#include "nsMailHeaders.h"
#include "nsMsgPrompts.h"
#include "nsMimeTypes.h"
#include "nsICharsetConverterManager.h"
#include "nsTextFormatter.h"
#include "nsIPlaintextEditor.h"
#include "nsIHTMLEditor.h"
#include "nsIEditorMailSupport.h"
#include "plstr.h"
#include "prmem.h"
#include "nsIDocShell.h"
#include "nsIRDFService.h"
#include "nsRDFCID.h"
#include "nsAbBaseCID.h"
#include "nsIAbMDBDirectory.h"
#include "nsCExternalHandlerService.h"
#include "nsIMIMEService.h"
#include "nsIDocShellTreeItem.h"
#include "nsIDocShellTreeOwner.h"
#include "nsIWindowMediator.h"
#include "nsIURL.h"
#include "nsIMsgMailSession.h"
#include "nsMsgBaseCID.h"
#include "nsMsgMimeCID.h"
#include "nsDateTimeFormatCID.h"
#include "nsIDateTimeFormat.h"
#include "nsILocaleService.h"
#include "nsILocale.h"
#include "nsIMsgComposeService.h"
#include "nsIMsgComposeProgressParams.h"
#include "nsMsgUtils.h"
#include "nsIMsgImapMailFolder.h"
#include "nsImapCore.h"
#include "nsUnicharUtils.h"
#include "nsNetUtil.h"
#include "nsIContentViewer.h"
#include "nsIMsgMdnGenerator.h"
#include "plbase64.h"
#include "nsUConvCID.h"
#include "nsIUnicodeNormalizer.h"
#include "nsIMsgAccountManager.h"
#include "nsIMsgAttachment.h"
#include "nsIMsgProgress.h"
#include "nsMsgFolderFlags.h"
#include "nsIMsgDatabase.h"
#include "nsStringStream.h"
#include "nsIMutableArray.h"
#include "nsArrayUtils.h"
#include "nsIMsgWindow.h"
#include "nsITextToSubURI.h"
#include "nsIAbManager.h"
#include "nsCRT.h"
#include "mozilla/Services.h"
#include "mozilla/mailnews/MimeHeaderParser.h"
#include "mozilla/Preferences.h"
#include "nsStreamConverter.h"
#include "nsISelection.h"
#include "nsJSEnvironment.h"
#include "nsIObserverService.h"
#include "nsIProtocolHandler.h"
#include "nsContentUtils.h"
#include "nsIFileURL.h"

using namespace mozilla;
using namespace mozilla::mailnews;

static nsresult GetReplyHeaderInfo(int32_t* reply_header_type,
                                   nsString& reply_header_locale,
                                   nsString& reply_header_authorwrote,
                                   nsString& reply_header_ondateauthorwrote,
                                   nsString& reply_header_authorwroteondate,
                                   nsString& reply_header_originalmessage)
{
  nsresult rv;
  *reply_header_type = 0;
  nsCOMPtr<nsIPrefBranch> prefBranch(do_GetService(NS_PREFSERVICE_CONTRACTID, &rv));
  NS_ENSURE_SUCCESS(rv, rv);

  // If fetching any of the preferences fails,
  // we return early with header_type = 0 meaning "no header".
  rv = NS_GetUnicharPreferenceWithDefault(prefBranch, "mailnews.reply_header_locale", EmptyString(), reply_header_locale);
  NS_ENSURE_SUCCESS(rv, rv);

  rv = NS_GetLocalizedUnicharPreference(prefBranch, "mailnews.reply_header_authorwrotesingle",
                                        reply_header_authorwrote);
  NS_ENSURE_SUCCESS(rv, rv);

  rv = NS_GetLocalizedUnicharPreference(prefBranch, "mailnews.reply_header_ondateauthorwrote",
                                        reply_header_ondateauthorwrote);
  NS_ENSURE_SUCCESS(rv, rv);

  rv = NS_GetLocalizedUnicharPreference(prefBranch, "mailnews.reply_header_authorwroteondate",
                                        reply_header_authorwroteondate);
  NS_ENSURE_SUCCESS(rv, rv);

  rv = NS_GetLocalizedUnicharPreference(prefBranch, "mailnews.reply_header_originalmessage",
                                        reply_header_originalmessage);
  NS_ENSURE_SUCCESS(rv, rv);

  return prefBranch->GetIntPref("mailnews.reply_header_type", reply_header_type);
}

static void TranslateLineEnding(nsString& data)
{
  char16_t* rPtr;   //Read pointer
  char16_t* wPtr;   //Write pointer
  char16_t* sPtr;   //Start data pointer
  char16_t* ePtr;   //End data pointer

  rPtr = wPtr = sPtr = data.BeginWriting();
  ePtr = rPtr + data.Length();

  while (rPtr < ePtr)
  {
    if (*rPtr == nsCRT::CR) {
      *wPtr = nsCRT::LF;
      if (rPtr + 1 < ePtr && *(rPtr + 1) == nsCRT::LF)
        rPtr ++;
    }
    else
      *wPtr = *rPtr;

    rPtr ++;
    wPtr ++;
  }

  data.SetLength(wPtr - sPtr);
}

static void GetTopmostMsgWindowCharacterSet(nsCString& charset, bool* charsetOverride)
{
  // HACK: if we are replying to a message and that message used a charset over ride
  // (as specified in the top most window (assuming the reply originated from that window)
  // then use that over ride charset instead of the charset specified in the message
  nsCOMPtr <nsIMsgMailSession> mailSession (do_GetService(NS_MSGMAILSESSION_CONTRACTID));
  if (mailSession)
  {
    nsCOMPtr<nsIMsgWindow>    msgWindow;
    mailSession->GetTopmostMsgWindow(getter_AddRefs(msgWindow));
    if (msgWindow)
    {
      msgWindow->GetMailCharacterSet(charset);
      msgWindow->GetCharsetOverride(charsetOverride);
    }
  }
}

nsMsgCompose::nsMsgCompose()
{

  mQuotingToFollow = false;
  mInsertingQuotedContent = false;
  mWhatHolder = 1;
  m_window = nullptr;
  m_editor = nullptr;
  mQuoteStreamListener=nullptr;
  mCharsetOverride = false;
  mAnswerDefaultCharset = false;
  mDeleteDraft = false;
  m_compFields = nullptr;    //m_compFields will be set during nsMsgCompose::Initialize
  mType = nsIMsgCompType::New;

  // For TagConvertible
  // Read and cache pref
  mConvertStructs = false;
  nsCOMPtr<nsIPrefBranch> prefBranch (do_GetService(NS_PREFSERVICE_CONTRACTID));
  if (prefBranch)
    prefBranch->GetBoolPref("converter.html2txt.structs", &mConvertStructs);

  m_composeHTML = false;
}


nsMsgCompose::~nsMsgCompose()
{
  NS_IF_RELEASE(m_compFields);
  NS_IF_RELEASE(mQuoteStreamListener);
}

/* the following macro actually implement addref, release and query interface for our component. */
NS_IMPL_ISUPPORTS(nsMsgCompose, nsIMsgCompose, nsIMsgSendListener,
  nsISupportsWeakReference)

//
// Once we are here, convert the data which we know to be UTF-8 to UTF-16
// for insertion into the editor
//
nsresult
GetChildOffset(nsIDOMNode *aChild, nsIDOMNode *aParent, int32_t &aOffset)
{
  NS_ASSERTION((aChild && aParent), "bad args");
  nsresult result = NS_ERROR_NULL_POINTER;
  if (aChild && aParent)
  {
    nsCOMPtr<nsIDOMNodeList> childNodes;
    result = aParent->GetChildNodes(getter_AddRefs(childNodes));
    if ((NS_SUCCEEDED(result)) && (childNodes))
    {
      int32_t i=0;
      for ( ; NS_SUCCEEDED(result); i++)
      {
        nsCOMPtr<nsIDOMNode> childNode;
        result = childNodes->Item(i, getter_AddRefs(childNode));
        if ((NS_SUCCEEDED(result)) && (childNode))
        {
          if (childNode.get()==aChild)
          {
            aOffset = i;
            break;
          }
        }
        else if (!childNode)
          result = NS_ERROR_NULL_POINTER;
      }
    }
    else if (!childNodes)
      result = NS_ERROR_NULL_POINTER;
  }
  return result;
}

nsresult
GetNodeLocation(nsIDOMNode *inChild, nsCOMPtr<nsIDOMNode> *outParent, int32_t *outOffset)
{
  NS_ASSERTION((outParent && outOffset), "bad args");
  nsresult result = NS_ERROR_NULL_POINTER;
  if (inChild && outParent && outOffset)
  {
    result = inChild->GetParentNode(getter_AddRefs(*outParent));
    if ( (NS_SUCCEEDED(result)) && (*outParent) )
    {
      result = GetChildOffset(inChild, *outParent, *outOffset);
    }
  }

  return result;
}

bool nsMsgCompose::IsEmbeddedObjectSafe(const char * originalScheme,
                                          const char * originalHost,
                                          const char * originalPath,
                                          nsIDOMNode * object)
{
  nsresult rv;

  nsCOMPtr<nsIDOMHTMLImageElement> image;
  nsCOMPtr<nsIDOMHTMLLinkElement> link;
  nsCOMPtr<nsIDOMHTMLAnchorElement> anchor;
  nsAutoString objURL;

  if (!object || !originalScheme || !originalPath) //having a null host is ok...
    return false;

  if ((image = do_QueryInterface(object)))
  {
    if (NS_FAILED(image->GetSrc(objURL)))
      return false;
  }
  else if ((link = do_QueryInterface(object)))
  {
    if (NS_FAILED(link->GetHref(objURL)))
      return false;
  }
  else if ((anchor = do_QueryInterface(object)))
  {
    if (NS_FAILED(anchor->GetHref(objURL)))
      return false;
  }
  else
    return false;

  if (!objURL.IsEmpty())
  {
    nsCOMPtr<nsIURI> uri;
    rv = NS_NewURI(getter_AddRefs(uri), objURL);
    if (NS_SUCCEEDED(rv) && uri)
    {
      nsAutoCString scheme;
      rv = uri->GetScheme(scheme);
      if (NS_SUCCEEDED(rv) && scheme.Equals(originalScheme, nsCaseInsensitiveCStringComparator()))
      {
        nsAutoCString host;
        rv = uri->GetAsciiHost(host);
        // mailbox url don't have a host therefore don't be too strict.
        if (NS_SUCCEEDED(rv) && (host.IsEmpty() || originalHost || host.Equals(originalHost, nsCaseInsensitiveCStringComparator())))
        {
          nsAutoCString path;
          rv = uri->GetPath(path);
          if (NS_SUCCEEDED(rv))
          {
            const char * query = strrchr(path.get(), '?');
            if (query && PL_strncasecmp(path.get(), originalPath, query - path.get()) == 0)
                return true; //This object is a part of the original message, we can send it safely.
          }
        }
      }
    }
  }

  return false;
}

/* Reset the uri's of embedded objects because we've saved the draft message, and the
   original message doesn't exist anymore.
 */
nsresult nsMsgCompose::ResetUrisForEmbeddedObjects()
{
  nsCOMPtr<nsIArray> aNodeList;
  uint32_t numNodes;
  uint32_t i;

  nsCOMPtr<nsIEditorMailSupport> mailEditor (do_QueryInterface(m_editor));
  if (!mailEditor)
    return NS_ERROR_FAILURE;

  nsresult rv = mailEditor->GetEmbeddedObjects(getter_AddRefs(aNodeList));
  if (NS_FAILED(rv) || !aNodeList)
    return NS_ERROR_FAILURE;

  if (NS_FAILED(aNodeList->GetLength(&numNodes)))
    return NS_ERROR_FAILURE;

  nsCOMPtr<nsIDOMNode> node;
  nsCString curDraftIdURL;

  rv = m_compFields->GetDraftId(getter_Copies(curDraftIdURL));

  // Skip if no draft id (probably a new draft msg).
  if (NS_SUCCEEDED(rv) && mMsgSend && !curDraftIdURL.IsEmpty())
  {
    nsCOMPtr <nsIMsgDBHdr> msgDBHdr;
    rv = GetMsgDBHdrFromURI(curDraftIdURL.get(), getter_AddRefs(msgDBHdr));
    NS_ASSERTION(NS_SUCCEEDED(rv), "RemoveCurrentDraftMessage can't get msg header DB interface pointer.");
    if (NS_SUCCEEDED(rv) && msgDBHdr)
    {
      // build up the old and new ?number= parts. This code assumes it is
      // called *before* RemoveCurrentDraftMessage, so that curDraftIdURL
      // is the previous draft.
      // This code works for both imap and local messages.
      nsMsgKey newMsgKey;
      nsCString folderUri;
      nsCString baseMsgUri;
      mMsgSend->GetMessageKey(&newMsgKey);
      mMsgSend->GetFolderUri(folderUri);
      nsCOMPtr<nsIMsgFolder> folder;
      rv = GetExistingFolder(folderUri, getter_AddRefs(folder));
      NS_ENSURE_SUCCESS(rv, rv);
      folder->GetBaseMessageURI(baseMsgUri);
      NS_ENSURE_SUCCESS(rv, rv);

      nsCOMPtr<nsIDOMElement> domElement;
      for (i = 0; i < numNodes; i ++)
      {
        domElement = do_QueryElementAt(aNodeList, i);
        if (!domElement)
          continue;

        nsCOMPtr<nsIDOMHTMLImageElement> image = do_QueryInterface(domElement);
        if (!image)
          continue;
        nsCString partNum;
        mMsgSend->GetPartForDomIndex(i, partNum);
        // do we care about anything besides images?
        nsAutoString objURL;
        image->GetSrc(objURL);

        // First we need to make sure that the URL is associated with a message
        // protocol so we don't accidentally manipulate a URL like:
        // http://www.site.com/retrieve.html?C=image.jpg.
        nsCOMPtr<nsIIOService> ioService = do_GetService(NS_IOSERVICE_CONTRACTID, &rv);
        NS_ENSURE_SUCCESS(rv, rv);
        nsAutoCString scheme;
        ioService->ExtractScheme(NS_ConvertUTF16toUTF8(objURL), scheme);

        // Detect message protocols where attachments can occur.
        nsCOMPtr<nsIProtocolHandler> handler;
        ioService->GetProtocolHandler(scheme.get(), getter_AddRefs(handler));
        if (!handler)
          continue;
        nsCOMPtr<nsIMsgMessageFetchPartService> mailHandler = do_QueryInterface(handler);
        if (!mailHandler)
          continue;

        // the objURL is the full path to the embedded content. We need
        // to update it with uri for the folder we just saved to, and the new
        // msg key.
        int32_t restOfUrlIndex = objURL.Find("?number=");
        if (restOfUrlIndex == kNotFound)
          restOfUrlIndex = objURL.FindChar('?');
        else
          restOfUrlIndex = objURL.FindChar('&', restOfUrlIndex);

        if (restOfUrlIndex == kNotFound)
          continue;

        nsCString newURI(baseMsgUri);
        newURI.Append('#');
        newURI.AppendInt(newMsgKey);
        nsString restOfUrl(Substring(objURL, restOfUrlIndex, objURL.Length() - restOfUrlIndex));
        int32_t partIndex = restOfUrl.Find("part=");
        if (partIndex != kNotFound)
        {
          partIndex += 5;
          int32_t endPart = restOfUrl.FindChar('&', partIndex);
          int32_t existingPartLen = (endPart == kNotFound) ? -1 : endPart - partIndex;
          restOfUrl.Replace(partIndex, existingPartLen, NS_ConvertASCIItoUTF16(partNum));
        }

        nsCOMPtr<nsIMsgMessageService> msgService;
        rv = GetMessageServiceFromURI(newURI, getter_AddRefs(msgService));
        if (NS_FAILED(rv))
          continue;
        nsCOMPtr<nsIURI> newUrl;
        rv = msgService->GetUrlForUri(newURI.get(), getter_AddRefs(newUrl), nullptr);
        if (!newUrl)
          continue;
        nsCString spec;
        rv = newUrl->GetSpec(spec);
        NS_ENSURE_SUCCESS(rv, rv);
        nsString newSrc;
        // mailbox urls will have ?number=xxx; imap urls won't. We need to
        // handle both cases because we may be going from a mailbox url to
        // and imap url, or vice versa, depending on the original folder,
        // and the destination drafts folder.
        bool specHasQ = (spec.FindChar('?') != kNotFound);
        if (specHasQ && restOfUrl.CharAt(0) == '?')
          restOfUrl.SetCharAt('&', 0);
        else if (!specHasQ && restOfUrl.CharAt(0) == '&')
          restOfUrl.SetCharAt('?', 0);
        AppendUTF8toUTF16(spec, newSrc);
        newSrc.Append(restOfUrl);
        image->SetSrc(newSrc);
      }
    }
  }

  return NS_OK;
}


/* The purpose of this function is to mark any embedded object that wasn't a RFC822 part
   of the original message as moz-do-not-send.
   That will prevent us to attach data not specified by the user or not present in the
   original message.
*/
nsresult nsMsgCompose::TagEmbeddedObjects(nsIEditorMailSupport *aEditor)
{
  nsresult rv = NS_OK;
  nsCOMPtr<nsIArray> aNodeList;
  uint32_t count;
  uint32_t i;

  if (!aEditor)
    return NS_ERROR_FAILURE;

  rv = aEditor->GetEmbeddedObjects(getter_AddRefs(aNodeList));
  if (NS_FAILED(rv) || !aNodeList)
    return NS_ERROR_FAILURE;

  if (NS_FAILED(aNodeList->GetLength(&count)))
    return NS_ERROR_FAILURE;

  nsCOMPtr<nsIURI> originalUrl;
  nsCString originalScheme;
  nsCString originalHost;
  nsCString originalPath;

  // first, convert the rdf original msg uri into a url that represents the message...
  nsCOMPtr <nsIMsgMessageService> msgService;
  rv = GetMessageServiceFromURI(mOriginalMsgURI, getter_AddRefs(msgService));
  if (NS_SUCCEEDED(rv))
  {
    rv = msgService->GetUrlForUri(mOriginalMsgURI.get(), getter_AddRefs(originalUrl), nullptr);
    if (NS_SUCCEEDED(rv) && originalUrl)
    {
      originalUrl->GetScheme(originalScheme);
      originalUrl->GetAsciiHost(originalHost);
      originalUrl->GetPath(originalPath);
    }
  }

  // Then compare the url of each embedded objects with the original message.
  // If they a not coming from the original message, they should not be sent
  // with the message.
  for (i = 0; i < count; i ++)
  {
    nsCOMPtr<nsIDOMNode> node = do_QueryElementAt(aNodeList, i);
    if (!node)
      continue;
    if (IsEmbeddedObjectSafe(originalScheme.get(), originalHost.get(),
                             originalPath.get(), node))
      continue; //Don't need to tag this object, it safe to send it.

    //The source of this object should not be sent with the message
    nsCOMPtr<nsIDOMElement> domElement = do_QueryInterface(node);
    if (domElement)
      domElement->SetAttribute(NS_LITERAL_STRING("moz-do-not-send"), NS_LITERAL_STRING("true"));
  }

  return NS_OK;
}

NS_IMETHODIMP
nsMsgCompose::GetInsertingQuotedContent(bool * aInsertingQuotedText)
{
  NS_ENSURE_ARG_POINTER(aInsertingQuotedText);
  *aInsertingQuotedText = mInsertingQuotedContent;
  return NS_OK;
}

NS_IMETHODIMP
nsMsgCompose::SetInsertingQuotedContent(bool aInsertingQuotedText)
{
  mInsertingQuotedContent = aInsertingQuotedText;
  return NS_OK;
}

void
nsMsgCompose::InsertDivWrappedTextAtSelection(const nsAString &aText,
                                              const nsAString &classStr)
{
  NS_ASSERTION(m_editor, "InsertDivWrappedTextAtSelection called, but no editor exists\n");
  if (!m_editor)
    return;

  nsCOMPtr<nsIDOMElement> divElem;
  nsCOMPtr<nsIHTMLEditor> htmlEditor(do_QueryInterface(m_editor));

  nsresult rv = htmlEditor->CreateElementWithDefaults(NS_LITERAL_STRING("div"),
                                                      getter_AddRefs(divElem));

  NS_ENSURE_SUCCESS_VOID(rv);

  nsCOMPtr<nsIDOMNode> divNode (do_QueryInterface(divElem));

  // We need the document
  nsCOMPtr<nsIDOMDocument> doc;
  rv = m_editor->GetDocument(getter_AddRefs(doc));
  NS_ENSURE_SUCCESS_VOID(rv);

  // Break up the text by newlines, and then insert text nodes followed
  // by <br> nodes.
  int32_t start = 0;
  int32_t end = aText.Length();

  for (;;)
  {
    int32_t delimiter = aText.FindChar('\n', start);
    if (delimiter == kNotFound)
      delimiter = end;

    nsCOMPtr<nsIDOMText> textNode;
    rv = doc->CreateTextNode(Substring(aText, start, delimiter - start), getter_AddRefs(textNode));
    NS_ENSURE_SUCCESS_VOID(rv);

    nsCOMPtr<nsIDOMNode> newTextNode = do_QueryInterface(textNode);
    nsCOMPtr<nsIDOMNode> resultNode;
    rv = divElem->AppendChild(newTextNode, getter_AddRefs(resultNode));
    NS_ENSURE_SUCCESS_VOID(rv);

    // Now create and insert a BR
    nsCOMPtr<nsIDOMElement> brElem;
    rv = htmlEditor->CreateElementWithDefaults(NS_LITERAL_STRING("br"),
                                               getter_AddRefs(brElem));
    rv = divElem->AppendChild(brElem, getter_AddRefs(resultNode));
    NS_ENSURE_SUCCESS_VOID(rv);

    if (delimiter == end)
      break;
    start = ++delimiter;
    if (start == end)
      break;
  }

  htmlEditor->InsertElementAtSelection(divElem, true);
  nsCOMPtr<nsIDOMNode> parent;
  int32_t offset;

  rv = GetNodeLocation(divNode, address_of(parent), &offset);
  if (NS_SUCCEEDED(rv))
  {
    nsCOMPtr<nsISelection> selection;
    m_editor->GetSelection(getter_AddRefs(selection));

    if (selection)
      selection->Collapse(parent, offset + 1);
  }
  if (divElem)
    divElem->SetAttribute(NS_LITERAL_STRING("class"), classStr);
}

/*
 * The following function replaces <plaintext> tags with <x-plaintext>.
 * <plaintext> is a funny beast: It leads to everything following it
 * being displayed verbatim, even a </plaintext> tag is ignored.
 */
static void
remove_plaintext_tag(nsString &body)
{
  // Replace all <plaintext> and </plaintext> tags.
  int32_t index = 0;
  bool replaced = false;
  while ((index = body.Find("<plaintext", /* ignoreCase = */ true, index)) != kNotFound) {
    body.Insert(u"x-", index+1);
    index += 12;
    replaced = true;
  }
  if (replaced) {
    index = 0;
    while ((index = body.Find("</plaintext", /* ignoreCase = */ true, index)) != kNotFound) {
      body.Insert(u"x-", index+2);
      index += 13;
    }
  }
}

NS_IMETHODIMP
nsMsgCompose::ConvertAndLoadComposeWindow(nsString& aPrefix,
                                          nsString& aBuf,
                                          nsString& aSignature,
                                          bool aQuoted,
                                          bool aHTMLEditor)
{
  NS_ASSERTION(m_editor, "ConvertAndLoadComposeWindow but no editor\n");
  NS_ENSURE_TRUE(m_editor && m_identity, NS_ERROR_NOT_INITIALIZED);

  // First, get the nsIEditor interface for future use
  nsCOMPtr<nsIDOMNode> nodeInserted;

  TranslateLineEnding(aPrefix);
  TranslateLineEnding(aBuf);
  TranslateLineEnding(aSignature);

  m_editor->EnableUndo(false);

  // Ok - now we need to figure out the charset of the aBuf we are going to send
  // into the editor shell. There are I18N calls to sniff the data and then we need
  // to call the new routine in the editor that will allow us to send in the charset
  //

  // Now, insert it into the editor...
  nsCOMPtr<nsIHTMLEditor> htmlEditor (do_QueryInterface(m_editor));
  nsCOMPtr<nsIPlaintextEditor> textEditor (do_QueryInterface(m_editor));
  nsCOMPtr<nsIEditorMailSupport> mailEditor (do_QueryInterface(m_editor));
  int32_t reply_on_top = 0;
  bool sig_bottom = true;
  m_identity->GetReplyOnTop(&reply_on_top);
  m_identity->GetSigBottom(&sig_bottom);
  bool sigOnTop = (reply_on_top == 1 && !sig_bottom);
  bool isForwarded = (mType == nsIMsgCompType::ForwardInline);

  if (aQuoted)
  {
    mInsertingQuotedContent = true;
    if (!aPrefix.IsEmpty())
    {
      if (!aHTMLEditor)
        aPrefix.AppendLiteral("\n");

      int32_t reply_on_top = 0;
      m_identity->GetReplyOnTop(&reply_on_top);
      if (reply_on_top == 1)
      {
        // HTML editor eats one line break
        if (aHTMLEditor)
          textEditor->InsertLineBreak();

        // add one newline if a signature comes before the quote, two otherwise
        bool includeSignature = true;
        bool sig_bottom = true;
        bool attachFile = false;
        nsString prefSigText;

        m_identity->GetSigOnReply(&includeSignature);
        m_identity->GetSigBottom(&sig_bottom);
        m_identity->GetHtmlSigText(prefSigText);
        nsresult rv = m_identity->GetAttachSignature(&attachFile);
        if (includeSignature && !sig_bottom &&
            ((NS_SUCCEEDED(rv) && attachFile) || !prefSigText.IsEmpty()))
          textEditor->InsertLineBreak();
        else {
          textEditor->InsertLineBreak();
          textEditor->InsertLineBreak();
        }
      }

      InsertDivWrappedTextAtSelection(aPrefix,
                                      NS_LITERAL_STRING("moz-cite-prefix"));
    }

    if (!aBuf.IsEmpty() && mailEditor)
    {
      // This leaves the caret at the right place to insert a bottom signature.
      if (aHTMLEditor) {
        nsAutoString body(aBuf);
        remove_plaintext_tag(body);
        mailEditor->InsertAsCitedQuotation(body,
                                           mCiteReference,
                                           true,
                                           getter_AddRefs(nodeInserted));
      } else {
        mailEditor->InsertAsQuotation(aBuf,
                                      getter_AddRefs(nodeInserted));
      }
    }

    mInsertingQuotedContent = false;

    (void)TagEmbeddedObjects(mailEditor);

    if (!aSignature.IsEmpty())
    {
      //we cannot add it on top earlier, because TagEmbeddedObjects will mark all images in the signature as "moz-do-not-send"
      if( sigOnTop )
        m_editor->BeginningOfDocument();

      if (aHTMLEditor && htmlEditor)
        htmlEditor->InsertHTML(aSignature);
      else if (htmlEditor)
      {
        textEditor->InsertLineBreak();
        InsertDivWrappedTextAtSelection(aSignature,
                                        NS_LITERAL_STRING("moz-signature"));
      }

      if( sigOnTop )
        m_editor->EndOfDocument();
    }
  }
  else
  {
    if (aHTMLEditor && htmlEditor)
    {
      mInsertingQuotedContent = true;
      if (isForwarded && Substring(aBuf, 0, sizeof(MIME_FORWARD_HTML_PREFIX)-1)
                         .EqualsLiteral(MIME_FORWARD_HTML_PREFIX)) {
        // We assign the opening tag inside "<HTML><BODY><BR><BR>" before the
        // two <br> elements.
        // This is a bit hacky but we know that the MIME code prepares the
        // forwarded content like this:
        // <HTML><BODY><BR><BR> + forwarded header + header table.
        // Note: We only do this when we prepare the message to be forwarded,
        // a re-opened saved draft of a forwarded message does not repeat this.
        nsString newBody(aBuf);
        nsString divTag;
        divTag.AssignLiteral("<div class=\"moz-forward-container\">");
        newBody.Insert(divTag, sizeof(MIME_FORWARD_HTML_PREFIX)-1-8);
        remove_plaintext_tag(newBody);
        htmlEditor->RebuildDocumentFromSource(newBody);
      } else {
        htmlEditor->RebuildDocumentFromSource(aBuf);
      }
      mInsertingQuotedContent = false;

      // when forwarding a message as inline, tag any embedded objects
      // which refer to local images or files so we know not to include
      // send them
      if (isForwarded)
        (void)TagEmbeddedObjects(mailEditor);

      if (!aSignature.IsEmpty())
      {
        if (isForwarded && sigOnTop) {
          // Use our own function, nsEditor::BeginningOfDocument() would position
          // into the <div class="moz-forward-container"> we've just created.
          MoveToBeginningOfDocument();
        } else {
          // Use our own function, nsEditor::EndOfDocument() would position
          // into the <div class="moz-forward-container"> we've just created.
          MoveToEndOfDocument();
        }
        htmlEditor->InsertHTML(aSignature);
        if (isForwarded && sigOnTop)
          m_editor->EndOfDocument();
      }
      else
        m_editor->EndOfDocument();
    }
    else if (htmlEditor)
    {
      bool sigOnTopInserted = false;
      if (isForwarded && sigOnTop && !aSignature.IsEmpty())
      {
        textEditor->InsertLineBreak();
        InsertDivWrappedTextAtSelection(aSignature,
                                        NS_LITERAL_STRING("moz-signature"));
        m_editor->EndOfDocument();
        sigOnTopInserted = true;
      }

      if (!aBuf.IsEmpty())
      {
        nsresult rv;
        nsCOMPtr<nsIDOMElement> divElem;
        nsCOMPtr<nsIDOMNode> extraBr;

        if (isForwarded) {
          // Special treatment for forwarded messages: Part 1.
          // Create a <div> of the required class.
          rv = htmlEditor->CreateElementWithDefaults(NS_LITERAL_STRING("div"),
                                                     getter_AddRefs(divElem));
          NS_ENSURE_SUCCESS(rv, rv);

          nsAutoString attributeName;
          nsAutoString attributeValue;
          attributeName.AssignLiteral("class");
          attributeValue.AssignLiteral("moz-forward-container");
          divElem->SetAttribute(attributeName, attributeValue);

          // We can't insert an empty <div>, so fill it with something.
          nsCOMPtr<nsIDOMElement> brElem;
          rv = htmlEditor->CreateElementWithDefaults(NS_LITERAL_STRING("br"),
                                                     getter_AddRefs(brElem));
          NS_ENSURE_SUCCESS(rv, rv);
          rv = divElem->AppendChild(brElem, getter_AddRefs(extraBr));
          NS_ENSURE_SUCCESS(rv, rv);

          // Insert the non-empty <div> into the DOM.
          rv = htmlEditor->InsertElementAtSelection(divElem, false);
          NS_ENSURE_SUCCESS(rv, rv);

          // Position into the div, so out content goes there.
          nsCOMPtr<nsISelection> selection;
          m_editor->GetSelection(getter_AddRefs(selection));
          rv = selection->Collapse(divElem, 0);
          NS_ENSURE_SUCCESS(rv, rv);
        }

        if (mailEditor) {
          rv = mailEditor->InsertTextWithQuotations(aBuf);
        } else {
          // Will we ever get here?
          rv = textEditor->InsertText(aBuf);
        }
        NS_ENSURE_SUCCESS(rv, rv);

        if (isForwarded) {
          // Special treatment for forwarded messages: Part 2.
          if (sigOnTopInserted) {
            // Sadly the M-C editor inserts a <br> between the <div> for the signature
            // and this <div>, so remove the <br> we don't want.
            nsCOMPtr<nsIDOMNode> brBeforeDiv;
            nsAutoString tagLocalName;
            rv = divElem->GetPreviousSibling(getter_AddRefs(brBeforeDiv));
            if (NS_SUCCEEDED(rv) && brBeforeDiv) {
              brBeforeDiv->GetLocalName(tagLocalName);
              if (tagLocalName.EqualsLiteral("br")) {
                rv = m_editor->DeleteNode(brBeforeDiv);
                NS_ENSURE_SUCCESS(rv, rv);
              }
            }
          }

          // Clean up the <br> we inserted.
          rv = m_editor->DeleteNode(extraBr);
          NS_ENSURE_SUCCESS(rv, rv);
        }

        // Use our own function instead of nsEditor::EndOfDocument() because
        // we don't want to position at the end of the div we've just created.
        // It's OK to use, even if we're not forwarding and didn't create a
        // <div>.
        rv = MoveToEndOfDocument();
        NS_ENSURE_SUCCESS(rv, rv);
      }

      if ((!isForwarded || !sigOnTop) && !aSignature.IsEmpty()) {
        textEditor->InsertLineBreak();
        InsertDivWrappedTextAtSelection(aSignature,
                                        NS_LITERAL_STRING("moz-signature"));
      }
    }
  }

  if (aBuf.IsEmpty())
    m_editor->BeginningOfDocument();
  else
  {
    switch (reply_on_top)
    {
      // This should set the cursor after the body but before the sig
      case 0:
      {
        if (!textEditor)
        {
          m_editor->BeginningOfDocument();
          break;
        }

        nsCOMPtr<nsISelection> selection = nullptr;
        nsCOMPtr<nsIDOMNode>      parent = nullptr;
        int32_t                   offset;
        nsresult                  rv;

        // get parent and offset of mailcite
        rv = GetNodeLocation(nodeInserted, address_of(parent), &offset);
        if (NS_FAILED(rv) || (!parent))
        {
          m_editor->BeginningOfDocument();
          break;
        }

        // get selection
        m_editor->GetSelection(getter_AddRefs(selection));
        if (!selection)
        {
          m_editor->BeginningOfDocument();
          break;
        }

        // place selection after mailcite
        selection->Collapse(parent, offset+1);

        // insert a break at current selection
        textEditor->InsertLineBreak();

        // i'm not sure if you need to move the selection back to before the
        // break. expirement.
        selection->Collapse(parent, offset+1);

        break;
      }

      case 2:
      {
        m_editor->SelectAll();
        break;
      }

      // This should set the cursor to the top!
      default:
      {
        m_editor->BeginningOfDocument();
        break;
      }
    }
  }

  nsCOMPtr<nsISelectionController> selCon;
  m_editor->GetSelectionController(getter_AddRefs(selCon));

  if (selCon)
    selCon->ScrollSelectionIntoView(nsISelectionController::SELECTION_NORMAL, nsISelectionController::SELECTION_ANCHOR_REGION, true);

  m_editor->EnableUndo(true);
  SetBodyModified(false);

#ifdef MSGCOMP_TRACE_PERFORMANCE
  nsCOMPtr<nsIMsgComposeService> composeService (do_GetService(NS_MSGCOMPOSESERVICE_CONTRACTID));
  composeService->TimeStamp("Finished inserting data into the editor. The window is finally ready!", false);
#endif
  return NS_OK;
}

/**
 * Check the identity pref to include signature on replies and forwards.
 */
bool nsMsgCompose::CheckIncludeSignaturePrefs(nsIMsgIdentity *identity)
{
  bool includeSignature = true;
  switch (mType)
  {
    case nsIMsgCompType::ForwardInline:
    case nsIMsgCompType::ForwardAsAttachment:
      identity->GetSigOnForward(&includeSignature);
      break;
    case nsIMsgCompType::Reply:
    case nsIMsgCompType::ReplyAll:
    case nsIMsgCompType::ReplyToList:
    case nsIMsgCompType::ReplyToGroup:
    case nsIMsgCompType::ReplyToSender:
    case nsIMsgCompType::ReplyToSenderAndGroup:
      identity->GetSigOnReply(&includeSignature);
      break;
  }
  return includeSignature;
}

nsresult
nsMsgCompose::SetQuotingToFollow(bool aVal)
{
  mQuotingToFollow = aVal;
  return NS_OK;
}

NS_IMETHODIMP
nsMsgCompose::GetQuotingToFollow(bool* quotingToFollow)
{
  NS_ENSURE_ARG(quotingToFollow);
  *quotingToFollow = mQuotingToFollow;
  return NS_OK;
}

NS_IMETHODIMP
nsMsgCompose::Initialize(nsIMsgComposeParams *aParams,
                         mozIDOMWindowProxy *aWindow,
                         nsIDocShell *aDocShell)
{
  NS_ENSURE_ARG_POINTER(aParams);
  nsresult rv;

  aParams->GetIdentity(getter_AddRefs(m_identity));

  if (aWindow)
  {
    m_window = aWindow;
    nsCOMPtr<nsPIDOMWindowOuter> window = nsPIDOMWindowOuter::From(aWindow);
    NS_ENSURE_TRUE(window, NS_ERROR_FAILURE);

    nsCOMPtr<nsIDocShellTreeItem> treeItem =
      do_QueryInterface(window->GetDocShell());
    nsCOMPtr<nsIDocShellTreeOwner> treeOwner;
    rv = treeItem->GetTreeOwner(getter_AddRefs(treeOwner));
    if (NS_FAILED(rv)) return rv;

    m_baseWindow = do_QueryInterface(treeOwner);
  }

  MSG_ComposeFormat format;
  aParams->GetFormat(&format);

  MSG_ComposeType type;
  aParams->GetType(&type);

  nsCString originalMsgURI;
  aParams->GetOriginalMsgURI(getter_Copies(originalMsgURI));
  aParams->GetOrigMsgHdr(getter_AddRefs(mOrigMsgHdr));

  nsCOMPtr<nsIMsgCompFields> composeFields;
  aParams->GetComposeFields(getter_AddRefs(composeFields));

  nsCOMPtr<nsIMsgComposeService> composeService = do_GetService(NS_MSGCOMPOSESERVICE_CONTRACTID, &rv);
  NS_ENSURE_SUCCESS(rv,rv);

  rv = composeService->DetermineComposeHTML(m_identity, format, &m_composeHTML);
  NS_ENSURE_SUCCESS(rv,rv);

  if (composeFields)
  {
    nsAutoCString draftId; // will get set for drafts and templates
    rv = composeFields->GetDraftId(getter_Copies(draftId));
    NS_ENSURE_SUCCESS(rv,rv);

    // Set return receipt flag and type, and if we should attach a vCard
    // by checking the identity prefs - but don't clobber the values for
    // drafts and templates as they were set up already by mime when
    // initializing the message.
    if (m_identity && draftId.IsEmpty() && type != nsIMsgCompType::Template
        && type != nsIMsgCompType::EditAsNew)
    {
      bool requestReturnReceipt = false;
      rv = m_identity->GetRequestReturnReceipt(&requestReturnReceipt);
      NS_ENSURE_SUCCESS(rv, rv);
      rv = composeFields->SetReturnReceipt(requestReturnReceipt);
      NS_ENSURE_SUCCESS(rv, rv);

      int32_t receiptType = nsIMsgMdnGenerator::eDntType;
      rv = m_identity->GetReceiptHeaderType(&receiptType);
      NS_ENSURE_SUCCESS(rv, rv);
      rv = composeFields->SetReceiptHeaderType(receiptType);
      NS_ENSURE_SUCCESS(rv, rv);

      bool requestDSN = false;
      rv = m_identity->GetRequestDSN(&requestDSN);
      NS_ENSURE_SUCCESS(rv, rv);
      rv = composeFields->SetDSN(requestDSN);
      NS_ENSURE_SUCCESS(rv, rv);

      bool attachVCard;
      rv = m_identity->GetAttachVCard(&attachVCard);
      NS_ENSURE_SUCCESS(rv, rv);
      rv = composeFields->SetAttachVCard(attachVCard);
      NS_ENSURE_SUCCESS(rv, rv);
    }
  }

  nsCOMPtr<nsIMsgSendListener> externalSendListener;
  aParams->GetSendListener(getter_AddRefs(externalSendListener));
  if(externalSendListener)
    AddMsgSendListener( externalSendListener );

  nsCString smtpPassword;
  aParams->GetSmtpPassword(getter_Copies(smtpPassword));
  mSmtpPassword = smtpPassword;

  aParams->GetHtmlToQuote(mHtmlToQuote);

  if (aDocShell)
  {
    mDocShell = aDocShell;
    // register the compose object with the compose service
    rv = composeService->RegisterComposeDocShell(aDocShell, this);
    NS_ENSURE_SUCCESS(rv, rv);
  }
  return CreateMessage(originalMsgURI.get(), type, composeFields);
}

nsresult nsMsgCompose::SetDocumentCharset(const char *aCharset)
{
  NS_ENSURE_TRUE(m_compFields && m_editor, NS_ERROR_NOT_INITIALIZED);

  // Set charset, this will be used for the MIME charset labeling.
  m_compFields->SetCharacterSet(aCharset);

  // notify the change to editor
  nsCString charset;
  if (aCharset)
    charset = nsDependentCString(aCharset);
  if (m_editor)
    m_editor->SetDocumentCharacterSet(charset);

  return NS_OK;
}

NS_IMETHODIMP
nsMsgCompose::RegisterStateListener(nsIMsgComposeStateListener *aStateListener)
{
  NS_ENSURE_ARG_POINTER(aStateListener);

  return mStateListeners.AppendElement(aStateListener) ? NS_OK : NS_ERROR_FAILURE;
}

NS_IMETHODIMP
nsMsgCompose::UnregisterStateListener(nsIMsgComposeStateListener *aStateListener)
{
  NS_ENSURE_ARG_POINTER(aStateListener);

  return mStateListeners.RemoveElement(aStateListener) ? NS_OK : NS_ERROR_FAILURE;
}

// Added to allow easier use of the nsIMsgSendListener
NS_IMETHODIMP nsMsgCompose::AddMsgSendListener( nsIMsgSendListener *aMsgSendListener )
{
  NS_ENSURE_ARG_POINTER(aMsgSendListener);
  return mExternalSendListeners.AppendElement(aMsgSendListener) ? NS_OK : NS_ERROR_FAILURE;
}

NS_IMETHODIMP nsMsgCompose::RemoveMsgSendListener( nsIMsgSendListener *aMsgSendListener )
{
  NS_ENSURE_ARG_POINTER(aMsgSendListener);
  return mExternalSendListeners.RemoveElement(aMsgSendListener) ? NS_OK : NS_ERROR_FAILURE;
}

NS_IMETHODIMP
nsMsgCompose::SendMsgToServer(MSG_DeliverMode deliverMode, nsIMsgIdentity *identity,
                              const char *accountKey)
{
  nsresult rv = NS_OK;

  // clear saved message id if sending, so we don't send out the same message-id.
  if (deliverMode == nsIMsgCompDeliverMode::Now ||
      deliverMode == nsIMsgCompDeliverMode::Later ||
      deliverMode == nsIMsgCompDeliverMode::Background)
    m_compFields->SetMessageId("");

  if (m_compFields && identity)
  {
    // Pref values are supposed to be stored as UTF-8, so no conversion
    nsCString email;
    nsString fullName;
    nsString organization;

    identity->GetEmail(email);
    identity->GetFullName(fullName);
    identity->GetOrganization(organization);

    const char* pFrom = m_compFields->GetFrom();
    if (!pFrom || !*pFrom)
    {
      nsCString sender;
      MakeMimeAddress(NS_ConvertUTF16toUTF8(fullName), email, sender);
      m_compFields->SetFrom(sender.IsEmpty() ? email.get() : sender.get());
    }

    m_compFields->SetOrganization(organization);

    // We need an nsIMsgSend instance to send the message. Allow extensions
    // to override the default SMTP sender by observing mail-set-sender.
    mMsgSend = nullptr;
    mDeliverMode = deliverMode;  // save for possible access by observer.

    // Allow extensions to specify an outgoing server.
    nsCOMPtr<nsIObserverService> observerService =
      mozilla::services::GetObserverService();
    NS_ENSURE_STATE(observerService);

    // Assemble a string with sending parameters.
    nsAutoString sendParms;

    // First parameter: account key. This may be null.
    sendParms.AppendASCII(accountKey && *accountKey ? accountKey : "");
    sendParms.AppendLiteral(",");

    // Second parameter: deliverMode.
    sendParms.AppendInt(deliverMode);
    sendParms.AppendLiteral(",");

    // Third parameter: identity (as identity key).
    nsAutoCString identityKey;
    identity->GetKey(identityKey);
    sendParms.AppendASCII(identityKey.get());

    observerService->NotifyObservers(
      NS_ISUPPORTS_CAST(nsIMsgCompose*, this),
      "mail-set-sender",
      sendParms.get());

    if (!mMsgSend)
      mMsgSend = do_CreateInstance(NS_MSGSEND_CONTRACTID);

    if (mMsgSend)
    {
      nsCString bodyString(m_compFields->GetBody());

      // Create the listener for the send operation...
      nsCOMPtr<nsIMsgComposeSendListener> composeSendListener = do_CreateInstance(NS_MSGCOMPOSESENDLISTENER_CONTRACTID);
      if (!composeSendListener)
        return NS_ERROR_OUT_OF_MEMORY;

      // right now, AutoSaveAsDraft is identical to SaveAsDraft as
      // far as the msg send code is concerned. This way, we don't have
      // to add an nsMsgDeliverMode for autosaveasdraft, and add cases for
      // it in the msg send code.
      if (deliverMode == nsIMsgCompDeliverMode::AutoSaveAsDraft)
        deliverMode = nsIMsgCompDeliverMode::SaveAsDraft;

      RefPtr<nsIMsgCompose> msgCompose(this);
      composeSendListener->SetMsgCompose(msgCompose);
      composeSendListener->SetDeliverMode(deliverMode);

      if (mProgress)
      {
        nsCOMPtr<nsIWebProgressListener> progressListener = do_QueryInterface(composeSendListener);
        mProgress->RegisterListener(progressListener);
      }

      // If we are composing HTML, then this should be sent as
      // multipart/related which means we pass the editor into the
      // backend...if not, just pass nullptr
      //
      nsCOMPtr<nsIMsgSendListener> sendListener = do_QueryInterface(composeSendListener);
      rv = mMsgSend->CreateAndSendMessage(
                    m_composeHTML ? m_editor.get() : nullptr,
                    identity,
                    accountKey,
                    m_compFields,
                    false,
                    false,
                    (nsMsgDeliverMode)deliverMode,
                    nullptr,
                    m_composeHTML ? TEXT_HTML : TEXT_PLAIN,
                    bodyString,
                    nullptr,
                    nullptr,
                    m_window,
                    mProgress,
                    sendListener,
                    mSmtpPassword.get(),
                    mOriginalMsgURI,
                    mType);
    }
    else
        rv = NS_ERROR_FAILURE;
  }
  else
    rv = NS_ERROR_NOT_INITIALIZED;

  if (NS_FAILED(rv))
    NotifyStateListeners(nsIMsgComposeNotificationType::ComposeProcessDone, rv);

  return rv;
}

NS_IMETHODIMP nsMsgCompose::SendMsg(MSG_DeliverMode deliverMode, nsIMsgIdentity *identity, const char *accountKey, nsIMsgWindow *aMsgWindow, nsIMsgProgress *progress)
{
  NS_ENSURE_TRUE(m_compFields, NS_ERROR_NOT_INITIALIZED);
  nsresult rv = NS_OK;
  nsCOMPtr<nsIPrompt> prompt;

  // i'm assuming the compose window is still up at this point...
  if (m_window) {
    nsCOMPtr<nsPIDOMWindowOuter> window = nsPIDOMWindowOuter::From(m_window);
    window->GetPrompter(getter_AddRefs(prompt));
  }

  // Set content type based on which type of compose window we had.
  nsString contentType = (m_composeHTML) ? NS_LITERAL_STRING("text/html"):
                                           NS_LITERAL_STRING("text/plain");
  nsString msgBody;
  if (m_editor)
  {
    // Reset message body previously stored in the compose fields
    // There is 2 nsIMsgCompFields::SetBody() functions using a pointer as argument,
    // therefore a casting is required.
    m_compFields->SetBody((const char *)nullptr);

    const char *charset = m_compFields->GetCharacterSet();

    uint32_t flags = nsIDocumentEncoder::OutputCRLineBreak |
                     nsIDocumentEncoder::OutputLFLineBreak;

    if (m_composeHTML) {
      flags |= nsIDocumentEncoder::OutputFormatted |
               nsIDocumentEncoder::OutputDisallowLineBreaking;
    } else {
      bool flowed, delsp, formatted, disallowBreaks;
      GetSerialiserFlags(charset, &flowed, &delsp, &formatted, &disallowBreaks);
      if (flowed)
        flags |= nsIDocumentEncoder::OutputFormatFlowed;
      if (delsp)
        flags |= nsIDocumentEncoder::OutputFormatDelSp;
      if (formatted)
        flags |= nsIDocumentEncoder::OutputFormatted;
      if (disallowBreaks)
        flags |= nsIDocumentEncoder::OutputDisallowLineBreaking;
      // Don't lose NBSP in the plain text encoder.
      flags |= nsIDocumentEncoder::OutputPersistNBSP;
    }
    rv = m_editor->OutputToString(contentType, flags, msgBody);
    NS_ENSURE_SUCCESS(rv, rv);
  }
  else
  {
    m_compFields->GetBody(msgBody);
  }
  if (!msgBody.IsEmpty())
  {
    // Convert body to mail charset
    nsCString outCString;
    rv = nsMsgI18NConvertFromUnicode(m_compFields->GetCharacterSet(),
      msgBody, outCString, false, true);
    bool isAsciiOnly = NS_IsAscii(outCString.get()) &&
      !nsMsgI18Nstateful_charset(m_compFields->GetCharacterSet());
    if (m_compFields->GetForceMsgEncoding())
      isAsciiOnly = false;
    if (NS_SUCCEEDED(rv) && !outCString.IsEmpty())
    {
      // If the body contains characters outside the repertoire of the current
      // charset, just convert to UTF-8 and be done with it
      // unless disable_fallback_to_utf8 is set for this charset.
      if (NS_ERROR_UENC_NOMAPPING == rv)
      {
        bool needToCheckCharset;
        m_compFields->GetNeedToCheckCharset(&needToCheckCharset);
        if (needToCheckCharset)
        {
          bool disableFallback = false;
          nsCOMPtr<nsIPrefBranch> prefBranch (do_GetService(NS_PREFSERVICE_CONTRACTID, &rv));
          if (prefBranch)
          {
            nsCString prefName("mailnews.disable_fallback_to_utf8.");
            prefName.Append(m_compFields->GetCharacterSet());
            prefBranch->GetBoolPref(prefName.get(), &disableFallback);
          }
          if (!disableFallback)
          {
            CopyUTF16toUTF8(msgBody, outCString);
            m_compFields->SetCharacterSet("UTF-8");
            SetDocumentCharset("UTF-8");
          }
        }
      }
      m_compFields->SetBodyIsAsciiOnly(isAsciiOnly);
      m_compFields->SetBody(outCString.get());
    }
    else
    {
      m_compFields->SetBody(NS_ConvertUTF16toUTF8(msgBody).get());
      m_compFields->SetCharacterSet("UTF-8");
      SetDocumentCharset("UTF-8");
    }
  }

  // Let's open the progress dialog
  if (progress)
  {
    mProgress = progress;

    if (deliverMode != nsIMsgCompDeliverMode::AutoSaveAsDraft)
    {
      nsAutoString msgSubject;
      m_compFields->GetSubject(msgSubject);

      bool showProgress = false;
      nsCOMPtr<nsIPrefBranch> prefBranch (do_GetService(NS_PREFSERVICE_CONTRACTID));
      if (prefBranch)
      {
        prefBranch->GetBoolPref("mailnews.show_send_progress", &showProgress);
        if (showProgress)
        {
          nsCOMPtr<nsIMsgComposeProgressParams> params = do_CreateInstance(NS_MSGCOMPOSEPROGRESSPARAMS_CONTRACTID, &rv);
          if (NS_FAILED(rv) || !params)
            return NS_ERROR_FAILURE;

          params->SetSubject(msgSubject.get());
          params->SetDeliveryMode(deliverMode);

          mProgress->OpenProgressDialog(m_window, aMsgWindow,
                                        "chrome://messenger/content/messengercompose/sendProgress.xul",
                                        false, params);
        }
      }
    }

    mProgress->OnStateChange(nullptr, nullptr, nsIWebProgressListener::STATE_START, NS_OK);
  }

  bool attachVCard = false;
  m_compFields->GetAttachVCard(&attachVCard);

  if (attachVCard && identity &&
      (deliverMode == nsIMsgCompDeliverMode::Now ||
       deliverMode == nsIMsgCompDeliverMode::Later ||
       deliverMode == nsIMsgCompDeliverMode::Background))
  {
      nsCString escapedVCard;
      // make sure, if there is no card, this returns an empty string, or NS_ERROR_FAILURE
      rv = identity->GetEscapedVCard(escapedVCard);

      if (NS_SUCCEEDED(rv) && !escapedVCard.IsEmpty())
      {
          nsCString vCardUrl;
          vCardUrl = "data:text/x-vcard;charset=utf-8;base64,";
          nsCString unescapedData;
          MsgUnescapeString(escapedVCard, 0, unescapedData);
          char *result = PL_Base64Encode(unescapedData.get(), 0, nullptr);
          vCardUrl += result;
          PR_Free(result);

          nsCOMPtr<nsIMsgAttachment> attachment = do_CreateInstance(NS_MSGATTACHMENT_CONTRACTID, &rv);
          if (NS_SUCCEEDED(rv) && attachment)
          {
              // [comment from 4.x]
              // Send the vCard out with a filename which distinguishes this user. e.g. jsmith.vcf
              // The main reason to do this is for interop with Eudora, which saves off
              // the attachments separately from the message body
              nsCString userid;
              (void)identity->GetEmail(userid);
              int32_t index = userid.FindChar('@');
              if (index != kNotFound)
                  userid.SetLength(index);

              if (userid.IsEmpty())
                  attachment->SetName(NS_LITERAL_STRING("vcard.vcf"));
              else
              {
                  // Replace any dot with underscore to stop vCards
                  // generating false positives with some heuristic scanners
                  MsgReplaceChar(userid, '.', '_');
                  userid.AppendLiteral(".vcf");
                  attachment->SetName(NS_ConvertASCIItoUTF16(userid));
              }

              attachment->SetUrl(vCardUrl);
              m_compFields->AddAttachment(attachment);
          }
      }
  }

  // Save the identity being sent for later use.
  m_identity = identity;

  rv = SendMsgToServer(deliverMode, identity, accountKey);
  if (NS_FAILED(rv))
  {
    nsCOMPtr<nsIMsgSendReport> sendReport;
    if (mMsgSend)
      mMsgSend->GetSendReport(getter_AddRefs(sendReport));
    if (sendReport)
    {
      nsresult theError;
      sendReport->DisplayReport(prompt, true, true, &theError);
    }
    else
    {
      /* If we come here it's because we got an error before we could intialize a
         send report! Let's try our best...
      */
      switch (deliverMode)
      {
        case nsIMsgCompDeliverMode::Later:
          nsMsgDisplayMessageByName(prompt, u"unableToSendLater");
          break;
        case nsIMsgCompDeliverMode::AutoSaveAsDraft:
        case nsIMsgCompDeliverMode::SaveAsDraft:
          nsMsgDisplayMessageByName(prompt, u"unableToSaveDraft");
          break;
        case nsIMsgCompDeliverMode::SaveAsTemplate:
          nsMsgDisplayMessageByName(prompt, u"unableToSaveTemplate");
          break;

        default:
          nsMsgDisplayMessageByName(prompt, u"sendFailed");
          break;
      }
    }

    if (progress)
      progress->CloseProgressDialog(true);
  }

  return rv;
}

/* attribute boolean deleteDraft */
NS_IMETHODIMP nsMsgCompose::GetDeleteDraft(bool *aDeleteDraft)
{
  NS_ENSURE_ARG_POINTER(aDeleteDraft);
  *aDeleteDraft = mDeleteDraft;
  return NS_OK;
}

NS_IMETHODIMP nsMsgCompose::SetDeleteDraft(bool aDeleteDraft)
{
  mDeleteDraft = aDeleteDraft;
  return NS_OK;
}

bool nsMsgCompose::IsLastWindow()
{
  nsresult rv;
  bool more;
  nsCOMPtr<nsIWindowMediator> windowMediator =
              do_GetService(NS_WINDOWMEDIATOR_CONTRACTID, &rv);
  if (NS_SUCCEEDED(rv))
  {
    nsCOMPtr<nsISimpleEnumerator> windowEnumerator;
    rv = windowMediator->GetEnumerator(nullptr,
               getter_AddRefs(windowEnumerator));
    if (NS_SUCCEEDED(rv))
    {
      nsCOMPtr<nsISupports> isupports;

      if (NS_SUCCEEDED(windowEnumerator->GetNext(getter_AddRefs(isupports))))
        if (NS_SUCCEEDED(windowEnumerator->HasMoreElements(&more)))
          return !more;
    }
  }
  return true;
}

NS_IMETHODIMP nsMsgCompose::CloseWindow(void)
{
  nsresult rv;

  nsCOMPtr<nsIMsgComposeService> composeService = do_GetService(NS_MSGCOMPOSESERVICE_CONTRACTID, &rv);
  NS_ENSURE_SUCCESS(rv,rv);

  // unregister the compose object with the compose service
  rv = composeService->UnregisterComposeDocShell(mDocShell);
  NS_ENSURE_SUCCESS(rv, rv);
  mDocShell = nullptr;

  // ensure that the destructor of nsMsgSend is invoked to remove
  // temporary files.
  mMsgSend = nullptr;

  //We are going away for real, we need to do some clean up first
  if (m_baseWindow)
  {
    if (m_editor)
    {
      // The editor will be destroyed during the close window.
      // Set it to null to be sure we won't use it anymore.
      m_editor = nullptr;
    }
    nsIBaseWindow * window = m_baseWindow;
    m_baseWindow = nullptr;
    rv = window->Destroy();
  }

  m_window = nullptr;
  return rv;
}

nsresult nsMsgCompose::Abort()
{
  if (mMsgSend)
    mMsgSend->Abort();

  if (mProgress)
    mProgress->CloseProgressDialog(true);

  return NS_OK;
}

NS_IMETHODIMP nsMsgCompose::GetEditor(nsIEditor * *aEditor)
{
  NS_IF_ADDREF(*aEditor = m_editor);
  return NS_OK;
}

NS_IMETHODIMP nsMsgCompose::SetEditor(nsIEditor *aEditor)
{
  m_editor = aEditor;
  return NS_OK;
}

static nsresult fixCharset(nsCString &aCharset)
{
  // No matter what, we should block x-windows-949 (our internal name)
  // from being used for outgoing emails (bug 234958).
  if (aCharset.Equals("x-windows-949", nsCaseInsensitiveCStringComparator()))
    aCharset = "EUC-KR";

  // Convert to a canonical charset name.
  // Bug 1297118 will revisit this call site.
  nsresult rv;
  nsCOMPtr<nsICharsetConverterManager> ccm =
    do_GetService(NS_CHARSETCONVERTERMANAGER_CONTRACTID, &rv);
  NS_ENSURE_SUCCESS(rv, rv);

  nsCString charset(aCharset);
  rv = ccm->GetCharsetAlias(charset.get(), aCharset);

  // Don't accept UTF-16 ever. UTF-16 should never be selected as an
  // outgoing encoding for e-mail. MIME can't handle those messages
  // encoded in ASCII-incompatible encodings.
  if (NS_FAILED(rv) ||
      StringBeginsWith(aCharset, NS_LITERAL_CSTRING("UTF-16"))) {
    aCharset.AssignLiteral("UTF-8");
  }
  return NS_OK;
}

// This used to be called BEFORE editor was created
//  (it did the loadUrl that triggered editor creation)
// It is called from JS after editor creation
//  (loadUrl is done in JS)
NS_IMETHODIMP nsMsgCompose::InitEditor(nsIEditor* aEditor, mozIDOMWindowProxy* aContentWindow)
{
  NS_ENSURE_ARG_POINTER(aEditor);
  NS_ENSURE_ARG_POINTER(aContentWindow);
  nsresult rv;

  m_editor = aEditor;

  nsAutoCString msgCharSet(m_compFields->GetCharacterSet());
  rv = fixCharset(msgCharSet);
  NS_ENSURE_SUCCESS(rv, rv);
  m_compFields->SetCharacterSet(msgCharSet.get());
  m_editor->SetDocumentCharacterSet(msgCharSet);

  nsCOMPtr<nsPIDOMWindowOuter> window = nsPIDOMWindowOuter::From(aContentWindow);

  nsIDocShell *docShell = window->GetDocShell();
  NS_ENSURE_TRUE(docShell, NS_ERROR_UNEXPECTED);

  nsCOMPtr<nsIContentViewer> childCV;
  NS_ENSURE_SUCCESS(docShell->GetContentViewer(getter_AddRefs(childCV)), NS_ERROR_FAILURE);
  if (childCV)
  {
    // SetForceCharacterSet will complain about "UTF-7" or "x-mac-croatian"
    // (see test-charset-edit.js), but we deal with this elsewhere.
    rv = childCV->SetForceCharacterSet(msgCharSet);
    NS_WARNING_ASSERTION(NS_SUCCEEDED(rv), "SetForceCharacterSet() failed");
  }

  // This is what used to be done in mDocumentListener,
  //   nsMsgDocumentStateListener::NotifyDocumentCreated()
  bool quotingToFollow = false;
  GetQuotingToFollow(&quotingToFollow);
  if (quotingToFollow)
    return BuildQuotedMessageAndSignature();
  else
  {
    NotifyStateListeners(nsIMsgComposeNotificationType::ComposeFieldsReady, NS_OK);
    rv = BuildBodyMessageAndSignature();
    NotifyStateListeners(nsIMsgComposeNotificationType::ComposeBodyReady, NS_OK);
    return rv;
  }
}

NS_IMETHODIMP nsMsgCompose::GetBodyRaw(nsACString& aBodyRaw)
{
  aBodyRaw.Assign((char *)m_compFields->GetBody());
  return NS_OK;
}

nsresult nsMsgCompose::GetBodyModified(bool * modified)
{
  nsresult rv;

  if (! modified)
    return NS_ERROR_NULL_POINTER;

  *modified = true;

  if (m_editor)
  {
    rv = m_editor->GetDocumentModified(modified);
    if (NS_FAILED(rv))
      *modified = true;
  }

  return NS_OK;
}

nsresult nsMsgCompose::SetBodyModified(bool modified)
{
  nsresult  rv = NS_OK;

  if (m_editor)
  {
    if (modified)
    {
      int32_t  modCount = 0;
      m_editor->GetModificationCount(&modCount);
      if (modCount == 0)
        m_editor->IncrementModificationCount(1);
    }
    else
      m_editor->ResetModificationCount();
  }

  return rv;
}

NS_IMETHODIMP
nsMsgCompose::GetDomWindow(mozIDOMWindowProxy * *aDomWindow)
{
  NS_IF_ADDREF(*aDomWindow = m_window);
  return NS_OK;
}

nsresult nsMsgCompose::GetCompFields(nsIMsgCompFields * *aCompFields)
{
  *aCompFields = (nsIMsgCompFields*)m_compFields;
  NS_IF_ADDREF(*aCompFields);
  return NS_OK;
}

NS_IMETHODIMP nsMsgCompose::GetComposeHTML(bool *aComposeHTML)
{
  *aComposeHTML = m_composeHTML;
  return NS_OK;
}

nsresult nsMsgCompose::GetWrapLength(int32_t *aWrapLength)
{
  nsresult rv;
  nsCOMPtr<nsIPrefBranch> prefBranch (do_GetService(NS_PREFSERVICE_CONTRACTID, &rv));
  if (NS_FAILED(rv)) return rv;

  return prefBranch->GetIntPref("mailnews.wraplength", aWrapLength);
}

nsresult nsMsgCompose::CreateMessage(const char * originalMsgURI,
                                     MSG_ComposeType type,
                                     nsIMsgCompFields * compFields)
{
  nsresult rv = NS_OK;
  mType = type;
  mDraftDisposition = nsIMsgFolder::nsMsgDispositionState_None;

  mDeleteDraft = (type == nsIMsgCompType::Draft);
  nsAutoCString msgUri(originalMsgURI);
  bool fileUrl = StringBeginsWith(msgUri, NS_LITERAL_CSTRING("file:"));
  int32_t typeIndex = msgUri.Find("type=application/x-message-display");
  if (typeIndex != kNotFound && typeIndex > 0)
  {
    // Strip out type=application/x-message-display because it confuses libmime.
    msgUri.Cut(typeIndex, sizeof("type=application/x-message-display"));
    if (fileUrl) // we're dealing with an .eml file msg
    {
      // We have now removed the type from the uri. Make sure we don't have
      // an uri with "&&" now. If we do, remove the second '&'.
      if (msgUri.CharAt(typeIndex) == '&')
        msgUri.Cut(typeIndex, 1);
      // Remove possible trailing '?'.
      if (msgUri.CharAt(msgUri.Length() - 1) == '?')
        msgUri.Cut(msgUri.Length() - 1, 1);
    }
    else // we're dealing with a message/rfc822 attachment
    {
      // nsURLFetcher will check for "realtype=message/rfc822" and will set the
      // content type to message/rfc822 in the forwarded message.
      msgUri.Append("&realtype=message/rfc822");
    }
    originalMsgURI = msgUri.get();
  }

  if (compFields)
  {
    NS_IF_RELEASE(m_compFields);
    m_compFields = reinterpret_cast<nsMsgCompFields*>(compFields);
    NS_ADDREF(m_compFields);
  }
  else
  {
    m_compFields = new nsMsgCompFields();
    if (m_compFields)
      NS_ADDREF(m_compFields);
    else
      return NS_ERROR_OUT_OF_MEMORY;
  }

  if (m_identity && mType != nsIMsgCompType::Draft)
  {
    // Setup reply-to field.
    nsCString replyTo;
    m_identity->GetReplyTo(replyTo);
    if (!replyTo.IsEmpty())
    {
      nsCString resultStr;
      RemoveDuplicateAddresses(nsDependentCString(m_compFields->GetReplyTo()),
                               replyTo, resultStr);
      if (!resultStr.IsEmpty())
      {
        replyTo.Append(',');
        replyTo.Append(resultStr);
      }
      m_compFields->SetReplyTo(replyTo.get());
    }

    // Setup auto-Cc field.
    bool doCc;
    m_identity->GetDoCc(&doCc);
    if (doCc)
    {
      nsCString ccList;
      m_identity->GetDoCcList(ccList);

      nsCString resultStr;
      RemoveDuplicateAddresses(nsDependentCString(m_compFields->GetCc()),
                               ccList, resultStr);
      if (!resultStr.IsEmpty())
      {
        ccList.Append(',');
        ccList.Append(resultStr);
      }
      m_compFields->SetCc(ccList.get());
    }

    // Setup auto-Bcc field.
    bool doBcc;
    m_identity->GetDoBcc(&doBcc);
    if (doBcc)
    {
      nsCString bccList;
      m_identity->GetDoBccList(bccList);

      nsCString resultStr;
      RemoveDuplicateAddresses(nsDependentCString(m_compFields->GetBcc()),
                               bccList, resultStr);
      if (!resultStr.IsEmpty())
      {
        bccList.Append(',');
        bccList.Append(resultStr);
      }
      m_compFields->SetBcc(bccList.get());
    }
  }

  if (mType == nsIMsgCompType::Draft)
  {
    nsCString curDraftIdURL;
    rv = m_compFields->GetDraftId(getter_Copies(curDraftIdURL));
    NS_ASSERTION(NS_SUCCEEDED(rv) && !curDraftIdURL.IsEmpty(), "CreateMessage can't get draft id");

    // Skip if no draft id (probably a new draft msg).
    if (NS_SUCCEEDED(rv) && !curDraftIdURL.IsEmpty())
    {
      nsCOMPtr <nsIMsgDBHdr> msgDBHdr;
      rv = GetMsgDBHdrFromURI(curDraftIdURL.get(), getter_AddRefs(msgDBHdr));
      NS_ASSERTION(NS_SUCCEEDED(rv), "CreateMessage can't get msg header DB interface pointer.");
      if (msgDBHdr)
      {
        nsCString queuedDisposition;
        msgDBHdr->GetStringProperty(QUEUED_DISPOSITION_PROPERTY, getter_Copies(queuedDisposition));
        // We need to retrieve the original URI from the database so we can
        // set the disposition flags correctly if the draft is a reply or forwarded message.
        nsCString originalMsgURIfromDB;
        msgDBHdr->GetStringProperty(ORIG_URI_PROPERTY, getter_Copies(originalMsgURIfromDB));
        mOriginalMsgURI = originalMsgURIfromDB;
        if (!queuedDisposition.IsEmpty())
        {
          if (queuedDisposition.Equals("replied"))
             mDraftDisposition = nsIMsgFolder::nsMsgDispositionState_Replied;
          else if (queuedDisposition.Equals("forward"))
             mDraftDisposition = nsIMsgFolder::nsMsgDispositionState_Forwarded;
        }
      }
    }
  }

  // If we don't have an original message URI, nothing else to do...
  if (!originalMsgURI || *originalMsgURI == 0)
    return NS_OK;

  // store the original message URI so we can extract it after we send the message to properly
  // mark any disposition flags like replied or forwarded on the message.
  if (mOriginalMsgURI.IsEmpty())
    mOriginalMsgURI = originalMsgURI;

  nsCOMPtr<nsIPrefBranch> prefs (do_GetService(NS_PREFSERVICE_CONTRACTID, &rv));
  NS_ENSURE_SUCCESS(rv, rv);

  // "Forward inline" and "Reply with template" processing.
  // Note the early return at the end of the block.
  if (type == nsIMsgCompType::ForwardInline ||
      type == nsIMsgCompType::ReplyWithTemplate)
  {
    // Use charset set up in the compose fields by MIME unless we should
    // use the default charset.
    bool replyInDefault = false;
    prefs->GetBoolPref("mailnews.reply_in_default_charset",
                        &replyInDefault);
    // Use send_default_charset if reply_in_default_charset is on.
    if (replyInDefault)
    {
      nsString str;
      nsCString charset;
      NS_GetLocalizedUnicharPreferenceWithDefault(prefs, "mailnews.send_default_charset",
                                                  EmptyString(), str);
      if (!str.IsEmpty())
      {
        LossyCopyUTF16toASCII(str, charset);
        m_compFields->SetCharacterSet(charset.get());
        mAnswerDefaultCharset = true;
      }
    }

    // We want to treat this message as a reference too
    nsCOMPtr<nsIMsgDBHdr> msgHdr;
    rv = GetMsgDBHdrFromURI(originalMsgURI, getter_AddRefs(msgHdr));
    if (NS_SUCCEEDED(rv))
    {
      nsAutoCString messageId;
      msgHdr->GetMessageId(getter_Copies(messageId));

      nsAutoCString reference;
      // When forwarding we only use the original message for "References:" -
      // recipients don't have the other messages anyway.
      // For reply with template we want to preserve all the references.
      if (type == nsIMsgCompType::ReplyWithTemplate)
      {
        uint16_t numReferences = 0;
        msgHdr->GetNumReferences(&numReferences);
        for (int32_t i = 0; i < numReferences; i++)
        {
          nsAutoCString ref;
          msgHdr->GetStringReference(i, ref);
          if (!ref.IsEmpty())
          {
            reference.AppendLiteral("<");
            reference.Append(ref);
            reference.AppendLiteral("> ");
          }
        }
        reference.Trim(" ", false, true);
      }
      msgHdr->GetMessageId(getter_Copies(messageId));
      reference.AppendLiteral("<");
      reference.Append(messageId);
      reference.AppendLiteral(">");
      m_compFields->SetReferences(reference.get());
    }

    // Early return for "Forward inline" and "Reply with template" processing.
    return NS_OK;
  }

  // All other processing.
  char *uriList = PL_strdup(originalMsgURI);
  if (!uriList)
    return NS_ERROR_OUT_OF_MEMORY;

  // Resulting charset for this message.
  nsCString charset;

  // Check for the charset of the last displayed message, it
  // will be used for quoting and as override.
  nsCString windowCharset;
  mCharsetOverride = false;
  mAnswerDefaultCharset = false;
  GetTopmostMsgWindowCharacterSet(windowCharset, &mCharsetOverride);
  if (!windowCharset.IsEmpty()) {
    // Although the charset in which to send the message might change,
    // the original message will be parsed for quoting using the charset it is
    // now displayed with.
    mQuoteCharset = windowCharset;

    if (mCharsetOverride) {
      // Use override charset.
      charset = windowCharset;
    }
  }

  // Note the following:
  // LoadDraftOrTemplate() is run in nsMsgComposeService::OpenComposeWindow()
  // for five compose types: ForwardInline, ReplyWithTemplate (both covered
  // in the code block above) and Draft, Template and Redirect. For these
  // compose types, the charset is already correct (incl. MIME-applied override)
  // unless the default charset should be used.

  bool isFirstPass = true;
  char *uri = uriList;
  char *nextUri;
  do
  {
    nextUri = strstr(uri, "://");
    if (nextUri)
    {
      // look for next ://, and then back up to previous ','
      nextUri = strstr(nextUri + 1, "://");
      if (nextUri)
      {
        *nextUri = '\0';
        char *saveNextUri = nextUri;
        nextUri = strrchr(uri, ',');
        if (nextUri)
          *nextUri = '\0';
        *saveNextUri = ':';
      }
    }

    nsCOMPtr <nsIMsgDBHdr> msgHdr;
    if (mOrigMsgHdr)
      msgHdr = mOrigMsgHdr;
    else
    {
      rv = GetMsgDBHdrFromURI(uri, getter_AddRefs(msgHdr));
      NS_ENSURE_SUCCESS(rv,rv);
    }
    if (msgHdr)
    {
      nsCString decodedCString;

      bool replyInDefault = false;
      prefs->GetBoolPref("mailnews.reply_in_default_charset",
                          &replyInDefault);
      // Use send_default_charset if reply_in_default_charset is on.
      if (replyInDefault)
      {
        nsString str;
        NS_GetLocalizedUnicharPreferenceWithDefault(prefs, "mailnews.send_default_charset",
                                                    EmptyString(), str);
        if (!str.IsEmpty()) {
          LossyCopyUTF16toASCII(str, charset);
          mAnswerDefaultCharset = true;
        }
      }

      // Set the charset we determined, if any, in the comp fields.
      // For replies, the charset will be set after processing the message
      // through MIME in QuotingOutputStreamListener::OnStopRequest().
      if (isFirstPass && !charset.IsEmpty())
        m_compFields->SetCharacterSet(charset.get());

      nsString subject;
      rv = msgHdr->GetMime2DecodedSubject(subject);
      if (NS_FAILED(rv)) return rv;

      // Check if (was: is present in the subject
      int32_t wasOffset = subject.RFind(NS_LITERAL_STRING(" (was:"));
      bool strip = true;

      if (wasOffset >= 0) {
        // Check the number of references, to check if was: should be stripped
        // First, assume that it should be stripped; the variable will be set to
        // false later if stripping should not happen.
        uint16_t numRef;
        msgHdr->GetNumReferences(&numRef);
        if (numRef) {
          // If there are references, look for the first message in the thread
          // firstly, get the database via the folder
          nsCOMPtr<nsIMsgFolder> folder;
          msgHdr->GetFolder(getter_AddRefs(folder));
          if (folder) {
            nsCOMPtr<nsIMsgDatabase> db;
            folder->GetMsgDatabase(getter_AddRefs(db));

            if (db) {
              nsAutoCString reference;
              msgHdr->GetStringReference(0, reference);

              nsCOMPtr<nsIMsgDBHdr> refHdr;
              db->GetMsgHdrForMessageID(reference.get(), getter_AddRefs(refHdr));

              if (refHdr) {
                nsCString refSubject;
                rv = refHdr->GetSubject(getter_Copies(refSubject));
                if (NS_SUCCEEDED(rv)) {
                  if (refSubject.Find(" (was:") >= 0)
                    strip = false;
                }
              }
            }
          }
        }
        else
          strip = false;
      }

      if (strip && wasOffset >= 0) {
        // Strip off the "(was: old subject)" part
        subject.Assign(Substring(subject, 0, wasOffset));
      }

      switch (type)
      {
        default: break;
        case nsIMsgCompType::Reply :
        case nsIMsgCompType::ReplyAll:
        case nsIMsgCompType::ReplyToList:
        case nsIMsgCompType::ReplyToGroup:
        case nsIMsgCompType::ReplyToSender:
        case nsIMsgCompType::ReplyToSenderAndGroup:
          {
            if (!isFirstPass)       // safeguard, just in case...
            {
              PR_Free(uriList);
              return rv;
            }
            mQuotingToFollow = true;

            subject.Insert(NS_LITERAL_STRING("Re: "), 0);
            m_compFields->SetSubject(subject);

            // Setup quoting callbacks for later...
            mWhatHolder = 1;
            break;
          }
        case nsIMsgCompType::ForwardAsAttachment:
          {
            // Add the forwarded message in the references, first
            nsAutoCString messageId;
            msgHdr->GetMessageId(getter_Copies(messageId));
            if (isFirstPass)
            {
              nsAutoCString reference;
              reference.Append(NS_LITERAL_CSTRING("<"));
              reference.Append(messageId);
              reference.Append(NS_LITERAL_CSTRING(">"));
              m_compFields->SetReferences(reference.get());
            }
            else
            {
              nsAutoCString references;
              m_compFields->GetReferences(getter_Copies(references));
              references.Append(NS_LITERAL_CSTRING(" <"));
              references.Append(messageId);
              references.Append(NS_LITERAL_CSTRING(">"));
              m_compFields->SetReferences(references.get());
            }

            uint32_t flags;

            msgHdr->GetFlags(&flags);
            if (flags & nsMsgMessageFlags::HasRe)
              subject.Insert(NS_LITERAL_STRING("Re: "), 0);

            // Setup quoting callbacks for later...
            mQuotingToFollow = false;  //We don't need to quote the original message.
            nsCOMPtr<nsIMsgAttachment> attachment = do_CreateInstance(NS_MSGATTACHMENT_CONTRACTID, &rv);
            if (NS_SUCCEEDED(rv) && attachment)
            {
              bool addExtension = true;
              nsString sanitizedSubj;
              prefs->GetBoolPref("mail.forward_add_extension", &addExtension);

              // copy subject string to sanitizedSubj, use default if empty
              if (subject.IsEmpty())
              {
                nsresult rv;
                nsCOMPtr<nsIStringBundleService> bundleService =
                  mozilla::services::GetStringBundleService();
                NS_ENSURE_TRUE(bundleService, NS_ERROR_UNEXPECTED);
                nsCOMPtr<nsIStringBundle> composeBundle;
                rv = bundleService->CreateBundle("chrome://messenger/locale/messengercompose/composeMsgs.properties",
                                                 getter_AddRefs(composeBundle));
                NS_ENSURE_SUCCESS(rv, rv);
                composeBundle->GetStringFromName(u"messageAttachmentSafeName",
                                                 getter_Copies(sanitizedSubj));
              }
              else
                sanitizedSubj.Assign(subject);

              // set the file size
              uint32_t messageSize;
              msgHdr->GetMessageSize(&messageSize);
              attachment->SetSize(messageSize);

              // change all '.' to '_'  see bug #271211
              MsgReplaceChar(sanitizedSubj, ".", '_');
              if (addExtension)
                sanitizedSubj.AppendLiteral(".eml");
              attachment->SetName(sanitizedSubj);
              attachment->SetUrl(nsDependentCString(uri));
              m_compFields->AddAttachment(attachment);
            }

            if (isFirstPass)
            {
              nsCString fwdPrefix;
              prefs->GetCharPref("mail.forward_subject_prefix", getter_Copies(fwdPrefix));
              if (!fwdPrefix.IsEmpty())
              {
                nsString unicodeFwdPrefix;
                CopyUTF8toUTF16(fwdPrefix, unicodeFwdPrefix);
                unicodeFwdPrefix.AppendLiteral(": ");
                subject.Insert(unicodeFwdPrefix, 0);
              }
              else
              {
                subject.Insert(NS_LITERAL_STRING("Fwd: "), 0);
              }
              m_compFields->SetSubject(subject);
            }
            break;
          }
        case nsIMsgCompType::Redirect:
          {
            // For a redirect, set the Reply-To: header to what was in the original From: header...
            nsAutoCString author;
            msgHdr->GetAuthor(getter_Copies(author));
            m_compFields->SetReplyTo(author.get());

            // ... and empty out the various recipient headers
            nsAutoString empty;
            m_compFields->SetTo(empty);
            m_compFields->SetCc(empty);
            m_compFields->SetBcc(empty);
            m_compFields->SetNewsgroups(empty);
            m_compFields->SetFollowupTo(empty);
            break;
          }
      }
    }
    isFirstPass = false;
    uri = nextUri + 1;
  }
  while (nextUri);
  PR_Free(uriList);
  return rv;
}

NS_IMETHODIMP nsMsgCompose::GetProgress(nsIMsgProgress **_retval)
{
  NS_ENSURE_ARG_POINTER(_retval);
  *_retval = mProgress;
  NS_IF_ADDREF(*_retval);
  return NS_OK;
}

NS_IMETHODIMP nsMsgCompose::GetMessageSend(nsIMsgSend **_retval)
{
  NS_ENSURE_ARG_POINTER(_retval);
  *_retval = mMsgSend;
  NS_IF_ADDREF(*_retval);
  return NS_OK;
}

NS_IMETHODIMP nsMsgCompose::SetMessageSend(nsIMsgSend* aMsgSend)
{
  mMsgSend = aMsgSend;
  return NS_OK;
}

NS_IMETHODIMP nsMsgCompose::ClearMessageSend()
{
  mMsgSend = nullptr;
  return NS_OK;
}

NS_IMETHODIMP nsMsgCompose::SetCiteReference(nsString citeReference)
{
  mCiteReference = citeReference;
  return NS_OK;
}

NS_IMETHODIMP nsMsgCompose::SetSavedFolderURI(const char *folderURI)
{
  m_folderName = folderURI;
  return NS_OK;
}

NS_IMETHODIMP nsMsgCompose::GetSavedFolderURI(char ** folderURI)
{
  NS_ENSURE_ARG_POINTER(folderURI);
  *folderURI = ToNewCString(m_folderName);
  return (*folderURI) ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}

NS_IMETHODIMP nsMsgCompose::GetOriginalMsgURI(char ** originalMsgURI)
{
  NS_ENSURE_ARG_POINTER(originalMsgURI);
  *originalMsgURI = ToNewCString(mOriginalMsgURI);
  return (*originalMsgURI) ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}

////////////////////////////////////////////////////////////////////////////////////
// THIS IS THE CLASS THAT IS THE STREAM CONSUMER OF THE HTML OUPUT
// FROM LIBMIME. THIS IS FOR QUOTING
////////////////////////////////////////////////////////////////////////////////////
QuotingOutputStreamListener::~QuotingOutputStreamListener()
{
  if (mUnicodeConversionBuffer)
    free(mUnicodeConversionBuffer);
}

QuotingOutputStreamListener::QuotingOutputStreamListener(const char * originalMsgURI,
                                                         nsIMsgDBHdr *originalMsgHdr,
                                                         bool quoteHeaders,
                                                         bool headersOnly,
                                                         nsIMsgIdentity *identity,
                                                         nsIMsgQuote* msgQuote,
                                                         bool charsetFixed,
                                                         bool quoteOriginal,
                                                         const nsACString& htmlToQuote)
{
  nsresult rv;
  mQuoteHeaders = quoteHeaders;
  mHeadersOnly = headersOnly;
  mIdentity = identity;
  mOrigMsgHdr = originalMsgHdr;
  mUnicodeBufferCharacterLength = 0;
  mUnicodeConversionBuffer = nullptr;
  mQuoteOriginal = quoteOriginal;
  mHtmlToQuote = htmlToQuote;
  mQuote = msgQuote;
  mCharsetFixed = charsetFixed;

  if (!mHeadersOnly || !mHtmlToQuote.IsEmpty())
  {
    // Get header type, locale and strings from pref.
    int32_t replyHeaderType;
    nsAutoString replyHeaderLocale;
    nsString replyHeaderAuthorWrote;
    nsString replyHeaderOnDateAuthorWrote;
    nsString replyHeaderAuthorWroteOnDate;
    nsString replyHeaderOriginalmessage;
    GetReplyHeaderInfo(&replyHeaderType,
                       replyHeaderLocale,
                       replyHeaderAuthorWrote,
                       replyHeaderOnDateAuthorWrote,
                       replyHeaderAuthorWroteOnDate,
                       replyHeaderOriginalmessage);

    // For the built message body...
    if (originalMsgHdr && !quoteHeaders)
    {
      // Setup the cite information....
      nsCString myGetter;
      if (NS_SUCCEEDED(originalMsgHdr->GetMessageId(getter_Copies(myGetter))))
      {
        if (!myGetter.IsEmpty())
        {
          nsAutoCString buf;
          mCiteReference.AssignLiteral("mid:");
          MsgEscapeURL(myGetter,
                       nsINetUtil::ESCAPE_URL_FILE_BASENAME | nsINetUtil::ESCAPE_URL_FORCED,
                       buf);
          mCiteReference.Append(NS_ConvertASCIItoUTF16(buf));
        }
      }

      bool citingHeader; //Do we have a header needing to cite any info from original message?
      bool headerDate;   //Do we have a header needing to cite date/time from original message?
      switch (replyHeaderType)
      {
        case 0: // No reply header at all (actually the "---- original message ----" string,
                // which is kinda misleading. TODO: Should there be a "really no header" option?
          mCitePrefix.Assign(replyHeaderOriginalmessage);
          citingHeader = false;
          headerDate = false;
          break;

        case 2: // Insert both the original author and date in the reply header (date followed by author)
          mCitePrefix.Assign(replyHeaderOnDateAuthorWrote);
          citingHeader = true;
          headerDate = true;
          break;

        case 3: // Insert both the original author and date in the reply header (author followed by date)
          mCitePrefix.Assign(replyHeaderAuthorWroteOnDate);
          citingHeader = true;
          headerDate = true;
          break;

        case 4: // TODO bug 107884: implement a more featureful user specified header
        case 1:
        default: // Default is to only show the author.
          mCitePrefix.Assign(replyHeaderAuthorWrote);
          citingHeader = true;
          headerDate = false;
          break;
      }

      if (citingHeader)
      {
        int32_t placeholderIndex = kNotFound;

        if (headerDate)
        {
          nsCOMPtr<nsIDateTimeFormat> dateFormatter = do_CreateInstance(NS_DATETIMEFORMAT_CONTRACTID, &rv);
          if (NS_SUCCEEDED(rv))
          {
            PRTime originalMsgDate;
            rv = originalMsgHdr->GetDate(&originalMsgDate);
            if (NS_SUCCEEDED(rv))
            {
              nsCOMPtr<nsILocale> locale;
              nsCOMPtr<nsILocaleService> localeService(do_GetService(NS_LOCALESERVICE_CONTRACTID));

              // Format date using "mailnews.reply_header_locale", if empty then use application default locale.
              if (!replyHeaderLocale.IsEmpty())
                rv = localeService->NewLocale(replyHeaderLocale, getter_AddRefs(locale));
              if (NS_SUCCEEDED(rv))
              {
                nsAutoString citeDatePart;
                if ((placeholderIndex = mCitePrefix.Find("#2")) != kNotFound)
                {
                  rv = dateFormatter->FormatPRTime(locale,
                                                   kDateFormatShort,
                                                   kTimeFormatNone,
                                                   originalMsgDate,
                                                   citeDatePart);
                  if (NS_SUCCEEDED(rv))
                    mCitePrefix.Replace(placeholderIndex, 2, citeDatePart);
                }
                if ((placeholderIndex = mCitePrefix.Find("#3")) != kNotFound)
                {
                  rv = dateFormatter->FormatPRTime(locale,
                                                   kDateFormatNone,
                                                   kTimeFormatNoSeconds,
                                                   originalMsgDate,
                                                   citeDatePart);
                  if (NS_SUCCEEDED(rv))
                    mCitePrefix.Replace(placeholderIndex, 2, citeDatePart);
                }
              }
            }
          }
        }

        if ((placeholderIndex = mCitePrefix.Find("#1")) != kNotFound)
        {
          nsAutoCString author;
          rv = originalMsgHdr->GetAuthor(getter_Copies(author));
          if (NS_SUCCEEDED(rv))
          {
            nsAutoString citeAuthor;
            ExtractName(EncodedHeader(author), citeAuthor);
            mCitePrefix.Replace(placeholderIndex, 2, citeAuthor);
          }
        }
      }
    }

    // This should not happen, but just in case.
    if (mCitePrefix.IsEmpty())
    {
      mCitePrefix.AppendLiteral("\n\n");
      mCitePrefix.Append(replyHeaderOriginalmessage);
      mCitePrefix.AppendLiteral("\n");
    }
  }
}

/**
 * The formatflowed parameter directs if formatflowed should be used in the conversion.
 * format=flowed (RFC 2646) is a way to represent flow in a plain text mail, without
 * disturbing the plain text.
 */
nsresult
QuotingOutputStreamListener::ConvertToPlainText(bool formatflowed,
                                                bool delsp,
                                                bool formatted,
                                                bool disallowBreaks)
{
  nsresult rv = ConvertBufToPlainText(mMsgBody, formatflowed,
                                                delsp,
                                                formatted,
                                                disallowBreaks);
  NS_ENSURE_SUCCESS (rv, rv);
  return ConvertBufToPlainText(mSignature, formatflowed,
                                           delsp,
                                           formatted,
                                           disallowBreaks);
}

NS_IMETHODIMP QuotingOutputStreamListener::OnStartRequest(nsIRequest *request, nsISupports * /* ctxt */)
{
  return NS_OK;
}

NS_IMETHODIMP QuotingOutputStreamListener::OnStopRequest(nsIRequest *request, nsISupports *ctxt, nsresult status)
{
  nsresult rv = NS_OK;

  if (!mHtmlToQuote.IsEmpty())
  {
    // If we had a selection in the original message to quote, we can add
    // it now that we are done ignoring the original body of the message
    mHeadersOnly = false;
    rv = AppendToMsgBody(mHtmlToQuote);
    NS_ENSURE_SUCCESS(rv, rv);
  }

  nsCOMPtr<nsIMsgCompose> compose = do_QueryReferent(mWeakComposeObj);
  NS_ENSURE_TRUE(compose, NS_ERROR_NULL_POINTER);

  MSG_ComposeType type;
  compose->GetType(&type);

  // Assign cite information if available...
  if (!mCiteReference.IsEmpty())
    compose->SetCiteReference(mCiteReference);

  bool overrideReplyTo =
    mozilla::Preferences::GetBool("mail.override_list_reply_to", true);

  if (mHeaders && (type == nsIMsgCompType::Reply ||
                   type == nsIMsgCompType::ReplyAll ||
                   type == nsIMsgCompType::ReplyToList ||
                   type == nsIMsgCompType::ReplyToSender ||
                   type == nsIMsgCompType::ReplyToGroup ||
                   type == nsIMsgCompType::ReplyToSenderAndGroup) &&
      mQuoteOriginal)
  {
    nsCOMPtr<nsIMsgCompFields> compFields;
    compose->GetCompFields(getter_AddRefs(compFields));
    if (compFields)
    {
      nsAutoString from;
      nsAutoString to;
      nsAutoString cc;
      nsAutoString bcc;
      nsAutoString replyTo;
      nsAutoString mailReplyTo;
      nsAutoString mailFollowupTo;
      nsAutoString newgroups;
      nsAutoString followUpTo;
      nsAutoString messageId;
      nsAutoString references;
      nsAutoString listPost;

      nsCString outCString; // Temp helper string.

      bool needToRemoveDup = false;
      if (!mMimeConverter)
      {
        mMimeConverter = do_GetService(NS_MIME_CONVERTER_CONTRACTID, &rv);
        NS_ENSURE_SUCCESS(rv, rv);
      }
      nsCString charset;
      compFields->GetCharacterSet(getter_Copies(charset));

      if (!mCharsetFixed) {
        // Get the charset from the channel where MIME left it.
        if (mQuote) {
          nsCOMPtr<nsIChannel> quoteChannel;
          mQuote->GetQuoteChannel(getter_AddRefs(quoteChannel));
          if (quoteChannel) {
            quoteChannel->GetContentCharset(charset);
            if (!charset.IsEmpty()) {
              rv = fixCharset(charset);
              NS_ENSURE_SUCCESS(rv, rv);
              compFields->SetCharacterSet(charset.get());
            }
          }
        }
      }

      mHeaders->ExtractHeader(HEADER_FROM, true, outCString);
      ConvertRawBytesToUTF16(outCString, charset.get(), from);

      mHeaders->ExtractHeader(HEADER_TO, true, outCString);
      ConvertRawBytesToUTF16(outCString, charset.get(), to);

      mHeaders->ExtractHeader(HEADER_CC, true, outCString);
      ConvertRawBytesToUTF16(outCString, charset.get(), cc);

      mHeaders->ExtractHeader(HEADER_BCC, true, outCString);
      ConvertRawBytesToUTF16(outCString, charset.get(), bcc);

      mHeaders->ExtractHeader(HEADER_MAIL_FOLLOWUP_TO, true, outCString);
      ConvertRawBytesToUTF16(outCString, charset.get(), mailFollowupTo);

      mHeaders->ExtractHeader(HEADER_REPLY_TO, false, outCString);
      ConvertRawBytesToUTF16(outCString, charset.get(), replyTo);

      mHeaders->ExtractHeader(HEADER_MAIL_REPLY_TO, true, outCString);
      ConvertRawBytesToUTF16(outCString, charset.get(), mailReplyTo);

      mHeaders->ExtractHeader(HEADER_NEWSGROUPS, false, outCString);
      if (!outCString.IsEmpty())
        mMimeConverter->DecodeMimeHeader(outCString.get(), charset.get(),
                                         false, true, newgroups);

      mHeaders->ExtractHeader(HEADER_FOLLOWUP_TO, false, outCString);
      if (!outCString.IsEmpty())
        mMimeConverter->DecodeMimeHeader(outCString.get(), charset.get(),
                                         false, true, followUpTo);

      mHeaders->ExtractHeader(HEADER_MESSAGE_ID, false, outCString);
      if (!outCString.IsEmpty())
        mMimeConverter->DecodeMimeHeader(outCString.get(), charset.get(),
                                         false, true, messageId);

      mHeaders->ExtractHeader(HEADER_REFERENCES, false, outCString);
      if (!outCString.IsEmpty())
        mMimeConverter->DecodeMimeHeader(outCString.get(), charset.get(),
                                         false, true, references);

      mHeaders->ExtractHeader(HEADER_LIST_POST, true, outCString);
      if (!outCString.IsEmpty())
        mMimeConverter->DecodeMimeHeader(outCString.get(), charset.get(),
                                         false, true, listPost);
      if (!listPost.IsEmpty())
      {
        int32_t startPos = listPost.Find("<mailto:");
        int32_t endPos = listPost.FindChar('>', startPos);
        // Extract the e-mail address.
        if (endPos > startPos)
        {
          const uint32_t mailtoLen = strlen("<mailto:");
          listPost = Substring(listPost, startPos + mailtoLen, endPos - (startPos + mailtoLen));
        }
      }

      nsCString fromEmailAddress;
      ExtractEmail(EncodedHeaderW(from), fromEmailAddress);

      nsTArray<nsCString> toEmailAddresses;
      ExtractEmails(EncodedHeaderW(to), UTF16ArrayAdapter<>(toEmailAddresses));

      nsTArray<nsCString> ccEmailAddresses;
      ExtractEmails(EncodedHeaderW(cc), UTF16ArrayAdapter<>(ccEmailAddresses));

      nsCOMPtr<nsIPrefBranch> prefs (do_GetService(NS_PREFSERVICE_CONTRACTID, &rv));
      NS_ENSURE_SUCCESS(rv, rv);
      bool replyToSelfCheckAll = false;
      prefs->GetBoolPref("mailnews.reply_to_self_check_all_ident",
                         &replyToSelfCheckAll);

      nsCOMPtr<nsIMsgAccountManager> accountManager =
        do_GetService(NS_MSGACCOUNTMANAGER_CONTRACTID, &rv);
      NS_ENSURE_SUCCESS(rv,rv);

      nsCOMPtr<nsIArray> identities;
      nsCString accountKey;
      mOrigMsgHdr->GetAccountKey(getter_Copies(accountKey));
      if (replyToSelfCheckAll)
      {
        // Check all avaliable identities if the pref was set.
        accountManager->GetAllIdentities(getter_AddRefs(identities));
      }
      else if (!accountKey.IsEmpty())
      {
         // Check headers to see which account the message came in from
         // (only works for pop3).
        nsCOMPtr<nsIMsgAccount> account;
        accountManager->GetAccount(accountKey, getter_AddRefs(account));

        if (account)
          account->GetIdentities(getter_AddRefs(identities));
      }
      else
      {
        // Check identities only for the server of the folder that the message
        // is in.
        nsCOMPtr <nsIMsgFolder> msgFolder;
        rv = mOrigMsgHdr->GetFolder(getter_AddRefs(msgFolder));

        if (NS_SUCCEEDED(rv) && msgFolder){
          nsCOMPtr<nsIMsgIncomingServer> nsIMsgIncomingServer;
          rv = msgFolder->GetServer(getter_AddRefs(nsIMsgIncomingServer));

          if (NS_SUCCEEDED(rv) && nsIMsgIncomingServer)
            accountManager->GetIdentitiesForServer(nsIMsgIncomingServer, getter_AddRefs(identities));
        }
      }

      bool isReplyToSelf = false;
      nsCOMPtr<nsIMsgIdentity> selfIdentity;
      if (identities)
      {
        // Go through the identities to see if any of them is the author of
        // the email.
        nsCOMPtr<nsIMsgIdentity> lookupIdentity;

        uint32_t count = 0;
        identities->GetLength(&count);

        for (uint32_t i = 0; i < count; i++)
        {
          lookupIdentity = do_QueryElementAt(identities, i, &rv);
          if (NS_FAILED(rv))
            continue;

          selfIdentity = lookupIdentity;

          nsCString curIdentityEmail;
          lookupIdentity->GetEmail(curIdentityEmail);

          // See if it's a reply to own message, but not a reply between identities.
          if (curIdentityEmail.Equals(fromEmailAddress))
          {
            isReplyToSelf = true;
            // For a true reply-to-self, none of your identities are normally in
            // To or Cc. We need to avoid doing a reply-to-self for people that
            // have multiple identities set and sometimes *uses* the other
            // identity and sometimes *mails* the other identity.
            // E.g. husband+wife or own-email+company-role-mail.
            for (uint32_t j = 0; j < count; j++)
            {
              nsCOMPtr<nsIMsgIdentity> lookupIdentity2;
              rv = identities->QueryElementAt(j, NS_GET_IID(nsIMsgIdentity),
                                              getter_AddRefs(lookupIdentity2));
              if (NS_FAILED(rv))
                continue;

              nsCString curIdentityEmail2;
              lookupIdentity2->GetEmail(curIdentityEmail2);
              if (toEmailAddresses.Contains(curIdentityEmail2))
              {
                // However, "From:me To:me" should be treated as
                // reply-to-self if we have a Bcc. If we don't have a Bcc we
                // might have the case of a generated mail of the style
                // "From:me To:me Reply-To:customer". Then we need to to do a
                // normal reply to the customer.
                isReplyToSelf = !bcc.IsEmpty(); // true if bcc is set
                break;
              }
              else if (ccEmailAddresses.Contains(curIdentityEmail2))
              {
                // If you auto-Cc yourself your email would be in Cc - but we
                // can't detect why it is in Cc so lets just treat it like a
                // normal reply.
                isReplyToSelf = false;
                break;
              }
            }
            break;
          }
        }
      }
      if (type == nsIMsgCompType::ReplyToSender || type == nsIMsgCompType::Reply)
      {
        if (isReplyToSelf)
        {
          // Cast to concrete class. We *only* what to change m_identity, not
          // all the things compose->SetIdentity would do.
          nsMsgCompose* _compose = static_cast<nsMsgCompose*>(compose.get());
          _compose->m_identity = selfIdentity;
          compFields->SetFrom(from);
          compFields->SetTo(to);
          compFields->SetReplyTo(replyTo);
        }
        else if (!mailReplyTo.IsEmpty())
        {
          // handle Mail-Reply-To (http://cr.yp.to/proto/replyto.html)
          compFields->SetTo(mailReplyTo);
          needToRemoveDup = true;
        }
        else if (!replyTo.IsEmpty())
        {
          // default reply behaviour then

          if (overrideReplyTo &&
              !listPost.IsEmpty() && replyTo.Find(listPost) != kNotFound)
          {
            // Reply-To munging in this list post. Reply to From instead,
            // as the user can choose Reply List if that's what he wants.
            compFields->SetTo(from);
          }
          else
          {
            compFields->SetTo(replyTo);
          }
          needToRemoveDup = true;
        }
        else {
          compFields->SetTo(from);
        }
      }
      else if (type == nsIMsgCompType::ReplyAll)
      {
        if (isReplyToSelf)
        {
          // Cast to concrete class. We *only* what to change m_identity, not
          // all the things compose->SetIdentity would do.
          nsMsgCompose* _compose = static_cast<nsMsgCompose*>(compose.get());
          _compose->m_identity = selfIdentity;
          compFields->SetFrom(from);
          compFields->SetTo(to);
          compFields->SetCc(cc);
          // In case it's a reply to self, but it's not the actual source of the
          // sent message, then we won't know the Bcc header. So set it only if
          // it's not empty. If you have auto-bcc and removed the auto-bcc for
          // the original mail, you will have to do it manually for this reply
          // too.
          if (!bcc.IsEmpty())
            compFields->SetBcc(bcc);
          compFields->SetReplyTo(replyTo);
          needToRemoveDup = true;
        }
        else if (mailFollowupTo.IsEmpty()) {
          // default reply-all behaviour then

          nsAutoString allTo;
          if (!replyTo.IsEmpty())
          {
            allTo.Assign(replyTo);
            needToRemoveDup = true;
            if (overrideReplyTo &&
                !listPost.IsEmpty() && replyTo.Find(listPost) != kNotFound)
            {
              // Reply-To munging in this list. Add From to recipients, it's the
              // lesser evil...
              allTo.AppendLiteral(", ");
              allTo.Append(from);
            }
          }
          else
          {
            allTo.Assign(from);
          }

          allTo.AppendLiteral(", ");
          allTo.Append(to);
          compFields->SetTo(allTo);

          nsAutoString allCc;
          compFields->GetCc(allCc); // auto-cc
          if (!allCc.IsEmpty())
            allCc.AppendLiteral(", ");
          allCc.Append(cc);
          compFields->SetCc(allCc);

          needToRemoveDup = true;
        }
        else
        {
          // Handle Mail-Followup-To (http://cr.yp.to/proto/replyto.html)
          compFields->SetTo(mailFollowupTo);
          needToRemoveDup = true; // To remove possible self from To.

          // If Cc is set a this point it's auto-Ccs, so we'll just keep those.
        }
      }
      else if (type == nsIMsgCompType::ReplyToList)
      {
        compFields->SetTo(listPost);
      }

      if (!newgroups.IsEmpty())
      {
        if ((type != nsIMsgCompType::Reply) && (type != nsIMsgCompType::ReplyToSender))
          compFields->SetNewsgroups(newgroups);
        if (type == nsIMsgCompType::ReplyToGroup)
          compFields->SetTo(EmptyString());
      }

      if (!followUpTo.IsEmpty())
      {
        // Handle "followup-to: poster" magic keyword here
        if (followUpTo.EqualsLiteral("poster"))
        {
          nsCOMPtr<mozIDOMWindowProxy> domWindow;
          nsCOMPtr<nsIPrompt> prompt;
          compose->GetDomWindow(getter_AddRefs(domWindow));
          NS_ENSURE_TRUE(domWindow, NS_ERROR_FAILURE);
          nsCOMPtr<nsPIDOMWindowOuter> composeWindow = nsPIDOMWindowOuter::From(domWindow);
          if (composeWindow)
            composeWindow->GetPrompter(getter_AddRefs(prompt));
          nsMsgDisplayMessageByName(prompt, u"followupToSenderMessage");

          if (!replyTo.IsEmpty())
          {
            compFields->SetTo(replyTo);
          }
          else
          {
            // If reply-to is empty, use the From header to fetch the original
            // sender's email.
            compFields->SetTo(from);
          }

          // Clear the newsgroup: header field, because followup-to: poster
          // only follows up to the original sender
          if (!newgroups.IsEmpty())
            compFields->SetNewsgroups(EmptyString());
        }
        else // Process "followup-to: newsgroup-content" here
        {
          if (type != nsIMsgCompType::ReplyToSender)
            compFields->SetNewsgroups(followUpTo);
          if (type == nsIMsgCompType::Reply)
          {
            compFields->SetTo(EmptyString());
          }
        }
      }

      if (!references.IsEmpty())
        references.Append(char16_t(' '));
      references += messageId;
      compFields->SetReferences(NS_LossyConvertUTF16toASCII(references).get());

      nsAutoCString resultStr;

      // Cast interface to concrete class that has direct field getters etc.
      nsMsgCompFields* _compFields = static_cast<nsMsgCompFields*>(compFields.get());

      // Remove duplicate addresses between To && Cc.
      if (needToRemoveDup)
      {
        nsCString addressesToRemoveFromCc;
        if (mIdentity)
        {
          bool removeMyEmailInCc = true;
          nsCString myEmail;
          mIdentity->GetEmail(myEmail);

          // Remove my own address from To, unless it's a reply to self.
          if (!isReplyToSelf) {
            RemoveDuplicateAddresses(nsDependentCString(_compFields->GetTo()),
                                     myEmail, resultStr);
            _compFields->SetTo(resultStr.get());
          }
          addressesToRemoveFromCc.Assign(_compFields->GetTo());

          // Remove own address from CC unless we want it in there
          // through the automatic-CC-to-self (see bug 584962). There are
          // three cases:
          // - user has no automatic CC
          // - user has automatic CC but own email is not in it
          // - user has automatic CC and own email in it
          // Only in the last case do we want our own email address to stay
          // in the CC list.
          bool automaticCc;
          mIdentity->GetDoCc(&automaticCc);
          if (automaticCc)
          {
            nsCString autoCcList;
            mIdentity->GetDoCcList(autoCcList);
            nsTArray<nsCString> autoCcEmailAddresses;
            ExtractEmails(EncodedHeader(autoCcList),
              UTF16ArrayAdapter<>(autoCcEmailAddresses));
            if (autoCcEmailAddresses.Contains(myEmail))
            {
              removeMyEmailInCc = false;
            }
          }

          if (removeMyEmailInCc)
          {
            addressesToRemoveFromCc.AppendLiteral(", ");
            addressesToRemoveFromCc.Append(myEmail);
          }
        }
        RemoveDuplicateAddresses(nsDependentCString(_compFields->GetCc()),
                                 addressesToRemoveFromCc, resultStr);
        _compFields->SetCc(resultStr.get());
        if (_compFields->GetBcc())
        {
          // Remove addresses already in Cc from Bcc.
          RemoveDuplicateAddresses(nsDependentCString(_compFields->GetBcc()),
                                   nsDependentCString(_compFields->GetCc()),
                                   resultStr);
          if (!resultStr.IsEmpty())
          {
            // Remove addresses already in To from Bcc.
            RemoveDuplicateAddresses(resultStr,
                                     nsDependentCString(_compFields->GetTo()),
                                     resultStr);
          }
          _compFields->SetBcc(resultStr.get());
        }
      }
    }
  }

#ifdef MSGCOMP_TRACE_PERFORMANCE
  nsCOMPtr<nsIMsgComposeService> composeService (do_GetService(NS_MSGCOMPOSESERVICE_CONTRACTID));
  composeService->TimeStamp("Done with MIME. Now we're updating the UI elements", false);
#endif

  if (mQuoteOriginal)
    compose->NotifyStateListeners(nsIMsgComposeNotificationType::ComposeFieldsReady, NS_OK);

#ifdef MSGCOMP_TRACE_PERFORMANCE
  composeService->TimeStamp("Addressing widget, window title and focus are now set, time to insert the body", false);
#endif

  if (! mHeadersOnly)
    mMsgBody.AppendLiteral("</html>");

  // Now we have an HTML representation of the quoted message.
  // If we are in plain text mode, we need to convert this to plain
  // text before we try to insert it into the editor. If we don't, we
  // just get lots of HTML text in the message...not good.
  //
  // XXX not m_composeHTML? /BenB
  bool composeHTML = true;
  compose->GetComposeHTML(&composeHTML);
  if (!composeHTML)
  {
    // Downsampling.

    // In plain text quotes we always allow line breaking to not end up with
    // long lines. The quote is inserted into a span with style
    // "white-space: pre;" which isn't be wrapped.
    // Update: Bug 387687 changed this to "white-space: pre-wrap;".
    // Note that the body of the plain text message is wrapped since it uses
    // "white-space: pre-wrap; width: 72ch;".
    // Look at it in the DOM Inspector to see it.
    //
    // If we're using format flowed, we need to pass it so the encoder
    // can add a space at the end.
    nsCOMPtr<nsIPrefBranch> pPrefBranch(do_GetService(NS_PREFSERVICE_CONTRACTID));
    bool flowed = false;
    if (pPrefBranch) {
      pPrefBranch->GetBoolPref("mailnews.send_plaintext_flowed", &flowed);
    }

    rv = ConvertToPlainText(flowed,
                            false,  // delsp makes no sense in this context
                            true,   // formatted
                            false); // allow line breaks
    NS_ENSURE_SUCCESS(rv, rv);
  }

  compose->ProcessSignature(mIdentity, true, &mSignature);

  nsCOMPtr<nsIEditor> editor;
  if (NS_SUCCEEDED(compose->GetEditor(getter_AddRefs(editor))) && editor)
  {
    if (mQuoteOriginal)
      compose->ConvertAndLoadComposeWindow(mCitePrefix,
                                           mMsgBody, mSignature,
                                           true, composeHTML);
    else
      InsertToCompose(editor, composeHTML);
  }

  if (mQuoteOriginal)
    compose->NotifyStateListeners(nsIMsgComposeNotificationType::ComposeBodyReady, NS_OK);
  return rv;
}

NS_IMETHODIMP QuotingOutputStreamListener::OnDataAvailable(nsIRequest *request,
                              nsISupports *ctxt, nsIInputStream *inStr,
                              uint64_t sourceOffset, uint32_t count)
{
  nsresult rv = NS_OK;
  NS_ENSURE_ARG(inStr);

  if (mHeadersOnly)
    return rv;

  char *newBuf = (char *)PR_Malloc(count + 1);
  if (!newBuf)
    return NS_ERROR_FAILURE;

  uint32_t numWritten = 0;
  rv = inStr->Read(newBuf, count, &numWritten);
  if (rv == NS_BASE_STREAM_WOULD_BLOCK)
    rv = NS_OK;
  newBuf[numWritten] = '\0';
  if (NS_SUCCEEDED(rv) && numWritten > 0)
  {
    rv = AppendToMsgBody(nsDependentCString(newBuf, numWritten));
  }

  PR_FREEIF(newBuf);
  return rv;
}

NS_IMETHODIMP QuotingOutputStreamListener::AppendToMsgBody(const nsCString &inStr)
{
  nsresult rv = NS_OK;

  if (!inStr.IsEmpty())
  {
    // Create unicode decoder.
    if (!mUnicodeDecoder)
    {
      nsCOMPtr<nsICharsetConverterManager> ccm =
               do_GetService(NS_CHARSETCONVERTERMANAGER_CONTRACTID, &rv);
      if (NS_SUCCEEDED(rv))
      {
        rv = ccm->GetUnicodeDecoderRaw("UTF-8",
                                       getter_AddRefs(mUnicodeDecoder));
      }
    }

    if (NS_SUCCEEDED(rv))
    {
      int32_t unicharLength;
      int32_t inputLength = inStr.Length();
      rv = mUnicodeDecoder->GetMaxLength(inStr.get(), inStr.Length(), &unicharLength);
      if (NS_SUCCEEDED(rv))
      {
        // Use this local buffer if possible.
        const int32_t kLocalBufSize = 4096;
        char16_t localBuf[kLocalBufSize];
        char16_t *unichars = localBuf;

        if (unicharLength > kLocalBufSize)
        {
          // Otherwise, use the buffer of the class.
          if (!mUnicodeConversionBuffer ||
              unicharLength > mUnicodeBufferCharacterLength)
          {
            if (mUnicodeConversionBuffer)
              free(mUnicodeConversionBuffer);
            mUnicodeConversionBuffer = (char16_t *) moz_xmalloc(unicharLength * sizeof(char16_t));
            if (!mUnicodeConversionBuffer)
            {
              mUnicodeBufferCharacterLength = 0;
              return NS_ERROR_OUT_OF_MEMORY;
            }
            mUnicodeBufferCharacterLength = unicharLength;
          }
          unichars = mUnicodeConversionBuffer;
        }

        int32_t consumedInputLength = 0;
        int32_t originalInputLength = inputLength;
        const char *inputBuffer = inStr.get();
        int32_t convertedOutputLength = 0;
        int32_t outputBufferLength = unicharLength;
        char16_t *originalOutputBuffer = unichars;
        do
        {
          rv = mUnicodeDecoder->Convert(inputBuffer, &inputLength, unichars, &unicharLength);
          if (NS_SUCCEEDED(rv))
          {
            convertedOutputLength += unicharLength;
            break;
          }

          // if we failed, we consume one byte, replace it with a question mark
          // and try the conversion again.
          unichars += unicharLength;
          *unichars = (char16_t)'?';
          unichars++;
          unicharLength++;

          mUnicodeDecoder->Reset();

          inputBuffer += ++inputLength;
          consumedInputLength += inputLength;
          inputLength = originalInputLength - consumedInputLength;  // update input length to convert
          convertedOutputLength += unicharLength;
          unicharLength = outputBufferLength - unicharLength;       // update output length

        } while (NS_FAILED(rv) &&
                 (originalInputLength > consumedInputLength) &&
                 (outputBufferLength > convertedOutputLength));

        if (convertedOutputLength > 0)
          mMsgBody.Append(originalOutputBuffer, convertedOutputLength);
      }
    }
  }

  return rv;
}

nsresult
QuotingOutputStreamListener::SetComposeObj(nsIMsgCompose *obj)
{
  mWeakComposeObj = do_GetWeakReference(obj);
  return NS_OK;
}

nsresult
QuotingOutputStreamListener::SetMimeHeaders(nsIMimeHeaders * headers)
{
  mHeaders = headers;
  return NS_OK;
}

NS_IMETHODIMP
QuotingOutputStreamListener::InsertToCompose(nsIEditor *aEditor,
                                             bool aHTMLEditor)
{
  // First, get the nsIEditor interface for future use
  nsCOMPtr<nsIDOMNode> nodeInserted;

  TranslateLineEnding(mMsgBody);

  // Now, insert it into the editor...
  if (aEditor)
    aEditor->EnableUndo(true);

  nsCOMPtr<nsIMsgCompose> compose = do_QueryReferent(mWeakComposeObj);
  if (!mMsgBody.IsEmpty() && compose)
  {
    compose->SetInsertingQuotedContent(true);
    if (!mCitePrefix.IsEmpty())
    {
      if (!aHTMLEditor)
        mCitePrefix.AppendLiteral("\n");
      nsCOMPtr<nsIPlaintextEditor> textEditor (do_QueryInterface(aEditor));
      if (textEditor)
        textEditor->InsertText(mCitePrefix);
    }

    nsCOMPtr<nsIEditorMailSupport> mailEditor (do_QueryInterface(aEditor));
    if (mailEditor)
    {
      if (aHTMLEditor) {
        nsAutoString body(mMsgBody);
        remove_plaintext_tag(body);
        mailEditor->InsertAsCitedQuotation(body, EmptyString(), true,
                                           getter_AddRefs(nodeInserted));
      } else {
        mailEditor->InsertAsQuotation(mMsgBody, getter_AddRefs(nodeInserted));
      }
    }
    compose->SetInsertingQuotedContent(false);
  }

  if (aEditor)
  {
    nsCOMPtr<nsIPlaintextEditor> textEditor = do_QueryInterface(aEditor);
    if (textEditor)
    {
      nsCOMPtr<nsISelection> selection;
      nsCOMPtr<nsIDOMNode>   parent;
      int32_t                offset;
      nsresult               rv;

      // get parent and offset of mailcite
      rv = GetNodeLocation(nodeInserted, address_of(parent), &offset);
      NS_ENSURE_SUCCESS(rv, rv);

      // get selection
      aEditor->GetSelection(getter_AddRefs(selection));
      if (selection)
      {
        // place selection after mailcite
        selection->Collapse(parent, offset+1);
        // insert a break at current selection
        textEditor->InsertLineBreak();
        selection->Collapse(parent, offset+1);
      }
      nsCOMPtr<nsISelectionController> selCon;
      aEditor->GetSelectionController(getter_AddRefs(selCon));

      if (selCon)
        // After ScrollSelectionIntoView(), the pending notifications might be
        // flushed and PresShell/PresContext/Frames may be dead. See bug 418470.
        selCon->ScrollSelectionIntoView(
                  nsISelectionController::SELECTION_NORMAL,
                  nsISelectionController::SELECTION_ANCHOR_REGION,
                  true);
    }
  }

  return NS_OK;
}

/**
 * Returns true if the domain is a match for the given the domain list.
 * Subdomains are also considered to match.
 * @param aDomain - the domain name to check
 * @param aDomainList - a comman separated string of domain names
 */
bool IsInDomainList(const nsAString &aDomain, const nsAString &aDomainList)
{
  if (aDomain.IsEmpty() || aDomainList.IsEmpty())
    return false;

  // Check plain text domains.
  int32_t left = 0;
  int32_t right = 0;
  while (right != (int32_t)aDomainList.Length())
  {
    right = aDomainList.FindChar(',', left);
    if (right == kNotFound)
      right = aDomainList.Length();
    nsDependentSubstring domain = Substring(aDomainList, left, right);

    if (aDomain.Equals(domain, nsCaseInsensitiveStringComparator()))
      return true;

    nsAutoString dotDomain;
    dotDomain.Assign(NS_LITERAL_STRING("."));
    dotDomain.Append(domain);
    if (StringEndsWith(aDomain, dotDomain, nsCaseInsensitiveStringComparator()))
      return true;

    left = right + 1;
  }
  return false;
}

NS_IMPL_ISUPPORTS(QuotingOutputStreamListener,
                   nsIMsgQuotingOutputStreamListener,
                   nsIRequestObserver,
                   nsIStreamListener)

////////////////////////////////////////////////////////////////////////////////////
// END OF QUOTING LISTENER
////////////////////////////////////////////////////////////////////////////////////

/* attribute MSG_ComposeType type; */
NS_IMETHODIMP nsMsgCompose::SetType(MSG_ComposeType aType)
{

  mType = aType;
  return NS_OK;
}

NS_IMETHODIMP nsMsgCompose::GetType(MSG_ComposeType *aType)
{
  NS_ENSURE_ARG_POINTER(aType);

  *aType = mType;
  return NS_OK;
}

NS_IMETHODIMP
nsMsgCompose::QuoteMessage(const char *msgURI)
{
  NS_ENSURE_ARG_POINTER(msgURI);

  nsresult rv;
  mQuotingToFollow = false;

  // Create a mime parser (nsIStreamConverter)!
  mQuote = do_CreateInstance(NS_MSGQUOTE_CONTRACTID, &rv);
  NS_ENSURE_SUCCESS(rv, rv);

  nsCOMPtr <nsIMsgDBHdr> msgHdr;
  rv = GetMsgDBHdrFromURI(msgURI, getter_AddRefs(msgHdr));

  // Create the consumer output stream.. this will receive all the HTML from libmime
  mQuoteStreamListener =
    new QuotingOutputStreamListener(msgURI,
                                    msgHdr,
                                    false,
                                    !mHtmlToQuote.IsEmpty(),
                                    m_identity,
                                    mQuote,
                                    mCharsetOverride || mAnswerDefaultCharset,
                                    false,
                                    mHtmlToQuote);

  if (!mQuoteStreamListener)
    return NS_ERROR_FAILURE;
  NS_ADDREF(mQuoteStreamListener);

  mQuoteStreamListener->SetComposeObj(this);

  rv = mQuote->QuoteMessage(msgURI, false, mQuoteStreamListener,
                            mCharsetOverride ? m_compFields->GetCharacterSet() : "",
                            false, msgHdr);
  return rv;
}

nsresult
nsMsgCompose::QuoteOriginalMessage() // New template
{
  nsresult    rv;

  mQuotingToFollow = false;

  // Create a mime parser (nsIStreamConverter)!
  mQuote = do_CreateInstance(NS_MSGQUOTE_CONTRACTID, &rv);
  if (NS_FAILED(rv) || !mQuote)
    return NS_ERROR_FAILURE;

  bool bAutoQuote = true;
  m_identity->GetAutoQuote(&bAutoQuote);

  nsCOMPtr <nsIMsgDBHdr> originalMsgHdr = mOrigMsgHdr;
  if (!originalMsgHdr)
  {
    rv = GetMsgDBHdrFromURI(mOriginalMsgURI.get(), getter_AddRefs(originalMsgHdr));
    NS_ENSURE_SUCCESS(rv, rv);
  }

  bool fileUrl = StringBeginsWith(mOriginalMsgURI, NS_LITERAL_CSTRING("file:"));
  if (fileUrl)
  {
    mOriginalMsgURI.Replace(0, 5, NS_LITERAL_CSTRING("mailbox:"));
    mOriginalMsgURI.AppendLiteral("?number=0");
  }

  // Create the consumer output stream.. this will receive all the HTML from libmime
  mQuoteStreamListener =
    new QuotingOutputStreamListener(mOriginalMsgURI.get(),
                                    originalMsgHdr,
                                    mWhatHolder != 1,
                                    !bAutoQuote || !mHtmlToQuote.IsEmpty(),
                                    m_identity,
                                    mQuote,
                                    mCharsetOverride || mAnswerDefaultCharset,
                                    true,
                                    mHtmlToQuote);

  if (!mQuoteStreamListener)
    return NS_ERROR_FAILURE;
  NS_ADDREF(mQuoteStreamListener);

  mQuoteStreamListener->SetComposeObj(this);

  rv = mQuote->QuoteMessage(mOriginalMsgURI.get(), mWhatHolder != 1, mQuoteStreamListener,
                            mCharsetOverride ? mQuoteCharset.get() : "",
                            !bAutoQuote, originalMsgHdr);
  return rv;
}

//CleanUpRecipient will remove un-necessary "<>" when a recipient as an address without name
void nsMsgCompose::CleanUpRecipients(nsString& recipients)
{
  uint16_t i;
  bool startANewRecipient = true;
  bool removeBracket = false;
  nsAutoString newRecipient;
  char16_t aChar;

  for (i = 0; i < recipients.Length(); i ++)
  {
    aChar = recipients[i];
    switch (aChar)
    {
      case '<'  :
        if (startANewRecipient)
          removeBracket = true;
        else
          newRecipient += aChar;
        startANewRecipient = false;
        break;

      case '>'  :
        if (removeBracket)
          removeBracket = false;
        else
          newRecipient += aChar;
        break;

      case ' '  :
        newRecipient += aChar;
        break;

      case ','  :
        newRecipient += aChar;
        startANewRecipient = true;
        removeBracket = false;
        break;

      default   :
        newRecipient += aChar;
        startANewRecipient = false;
        break;
    }
  }
  recipients = newRecipient;
}

NS_IMETHODIMP nsMsgCompose::RememberQueuedDisposition()
{
  // need to find the msg hdr in the saved folder and then set a property on
  // the header that we then look at when we actually send the message.
  nsresult rv;
  nsAutoCString dispositionSetting;

  if (mType == nsIMsgCompType::Reply ||
      mType == nsIMsgCompType::ReplyAll ||
      mType == nsIMsgCompType::ReplyToList ||
      mType == nsIMsgCompType::ReplyToGroup ||
      mType == nsIMsgCompType::ReplyToSender ||
      mType == nsIMsgCompType::ReplyToSenderAndGroup)
  {
    dispositionSetting.AssignLiteral("replied");
  }
  else if (mType == nsIMsgCompType::ForwardAsAttachment ||
           mType == nsIMsgCompType::ForwardInline)
  {
    dispositionSetting.AssignLiteral("forwarded");
  }
  else if (mType == nsIMsgCompType::Draft)
  {
    nsAutoCString curDraftIdURL;
    rv = m_compFields->GetDraftId(getter_Copies(curDraftIdURL));
    NS_ENSURE_SUCCESS(rv, rv);
    if (!curDraftIdURL.IsEmpty()) {
      nsCOMPtr <nsIMsgDBHdr> draftHdr;
      rv = GetMsgDBHdrFromURI(curDraftIdURL.get(), getter_AddRefs(draftHdr));
      NS_ENSURE_SUCCESS(rv, rv);
      draftHdr->GetStringProperty(QUEUED_DISPOSITION_PROPERTY, getter_Copies(dispositionSetting));
    }
  }

  nsMsgKey msgKey;
  if (mMsgSend)
  {
    mMsgSend->GetMessageKey(&msgKey);
    nsAutoCString msgUri(m_folderName);
    nsCString identityKey;

    m_identity->GetKey(identityKey);

    int32_t insertIndex = StringBeginsWith(msgUri, NS_LITERAL_CSTRING("mailbox")) ? 7 : 4;
    msgUri.Insert("-message", insertIndex); // "mailbox/imap: -> "mailbox/imap-message:"
    msgUri.Append('#');
    msgUri.AppendInt(msgKey);
    nsCOMPtr <nsIMsgDBHdr> msgHdr;
    rv = GetMsgDBHdrFromURI(msgUri.get(), getter_AddRefs(msgHdr));
    NS_ENSURE_SUCCESS(rv, rv);
    uint32_t pseudoHdrProp = 0;
    msgHdr->GetUint32Property("pseudoHdr", &pseudoHdrProp);
    if (pseudoHdrProp)
    {
      // Use SetAttributeOnPendingHdr for IMAP pseudo headers, as those
      // will get deleted (and properties set using SetStringProperty lost.)
      nsCOMPtr<nsIMsgFolder> folder;
      rv = msgHdr->GetFolder(getter_AddRefs(folder));
      NS_ENSURE_SUCCESS(rv,rv);
      nsCOMPtr<nsIMsgDatabase> msgDB;
      rv = folder->GetMsgDatabase(getter_AddRefs(msgDB));
      NS_ENSURE_SUCCESS(rv,rv);

      nsCString messageId;
      mMsgSend->GetMessageId(messageId);
      msgHdr->SetMessageId(messageId.get());
      if (!mOriginalMsgURI.IsEmpty())
      {
        msgDB->SetAttributeOnPendingHdr(msgHdr, ORIG_URI_PROPERTY, mOriginalMsgURI.get());
        if (!dispositionSetting.IsEmpty())
          msgDB->SetAttributeOnPendingHdr(msgHdr, QUEUED_DISPOSITION_PROPERTY,
                                          dispositionSetting.get());
      }
      msgDB->SetAttributeOnPendingHdr(msgHdr, HEADER_X_MOZILLA_IDENTITY_KEY, identityKey.get());
    }
    else if (msgHdr)
    {
      if (!mOriginalMsgURI.IsEmpty())
      {
        msgHdr->SetStringProperty(ORIG_URI_PROPERTY, mOriginalMsgURI.get());
        if (!dispositionSetting.IsEmpty())
          msgHdr->SetStringProperty(QUEUED_DISPOSITION_PROPERTY, dispositionSetting.get());
      }
      msgHdr->SetStringProperty(HEADER_X_MOZILLA_IDENTITY_KEY, identityKey.get());
    }
  }
  return NS_OK;
}

nsresult nsMsgCompose::ProcessReplyFlags()
{
  nsresult rv;
  // check to see if we were doing a reply or a forward, if we were, set the answered field flag on the message folder
  // for this URI.
  if (mType == nsIMsgCompType::Reply ||
      mType == nsIMsgCompType::ReplyAll ||
      mType == nsIMsgCompType::ReplyToList ||
      mType == nsIMsgCompType::ReplyToGroup ||
      mType == nsIMsgCompType::ReplyToSender ||
      mType == nsIMsgCompType::ReplyToSenderAndGroup ||
      mType == nsIMsgCompType::ForwardAsAttachment ||
      mType == nsIMsgCompType::ForwardInline ||
      mDraftDisposition != nsIMsgFolder::nsMsgDispositionState_None)
  {
    if (!mOriginalMsgURI.IsEmpty())
    {
      nsCString msgUri (mOriginalMsgURI);
      char *newStr = msgUri.BeginWriting();
      char *uri;
      while (nullptr != (uri = NS_strtok(",", &newStr)))
      {
        nsCOMPtr <nsIMsgDBHdr> msgHdr;
        rv = GetMsgDBHdrFromURI(uri, getter_AddRefs(msgHdr));
        NS_ENSURE_SUCCESS(rv,rv);
        if (msgHdr)
        {
          // get the folder for the message resource
          nsCOMPtr<nsIMsgFolder> msgFolder;
          msgHdr->GetFolder(getter_AddRefs(msgFolder));
          if (msgFolder)
          {
            // If it's a draft with disposition, default to replied, otherwise,
            // check if it's a forward.
            nsMsgDispositionState dispositionSetting = nsIMsgFolder::nsMsgDispositionState_Replied;
            if (mDraftDisposition != nsIMsgFolder::nsMsgDispositionState_None)
              dispositionSetting = mDraftDisposition;
            else if (mType == nsIMsgCompType::ForwardAsAttachment ||
                mType == nsIMsgCompType::ForwardInline)
              dispositionSetting = nsIMsgFolder::nsMsgDispositionState_Forwarded;

            msgFolder->AddMessageDispositionState(msgHdr, dispositionSetting);
            if (mType != nsIMsgCompType::ForwardAsAttachment)
              break;         // just safeguard
          }
        }
      }
    }
  }

  return NS_OK;
}
NS_IMETHODIMP nsMsgCompose::OnStartSending(const char *aMsgID, uint32_t aMsgSize)
{
  nsTObserverArray<nsCOMPtr<nsIMsgSendListener> >::ForwardIterator iter(mExternalSendListeners);
  nsCOMPtr<nsIMsgSendListener> externalSendListener;

  while (iter.HasMore())
  {
    externalSendListener = iter.GetNext();
    externalSendListener->OnStartSending(aMsgID, aMsgSize);
  }
  return NS_OK;
}

NS_IMETHODIMP nsMsgCompose::OnProgress(const char *aMsgID, uint32_t aProgress, uint32_t aProgressMax)
{
  nsTObserverArray<nsCOMPtr<nsIMsgSendListener> >::ForwardIterator iter(mExternalSendListeners);
  nsCOMPtr<nsIMsgSendListener> externalSendListener;

  while (iter.HasMore())
  {
    externalSendListener = iter.GetNext();
    externalSendListener->OnProgress(aMsgID, aProgress, aProgressMax);
  }
  return NS_OK;
}

NS_IMETHODIMP nsMsgCompose::OnStatus(const char *aMsgID, const char16_t *aMsg)
{
  nsTObserverArray<nsCOMPtr<nsIMsgSendListener> >::ForwardIterator iter(mExternalSendListeners);
  nsCOMPtr<nsIMsgSendListener> externalSendListener;

  while (iter.HasMore())
  {
    externalSendListener = iter.GetNext();
    externalSendListener->OnStatus(aMsgID, aMsg);
  }
  return NS_OK;
}

NS_IMETHODIMP nsMsgCompose::OnStopSending(const char *aMsgID, nsresult aStatus, const char16_t *aMsg,
                                      nsIFile *returnFile)
{
  nsTObserverArray<nsCOMPtr<nsIMsgSendListener> >::ForwardIterator iter(mExternalSendListeners);
  nsCOMPtr<nsIMsgSendListener> externalSendListener;

  while (iter.HasMore())
  {
    externalSendListener = iter.GetNext();
    externalSendListener->OnStopSending(aMsgID, aStatus, aMsg, returnFile);
  }
  return NS_OK;
}

NS_IMETHODIMP nsMsgCompose::OnSendNotPerformed(const char *aMsgID, nsresult aStatus)
{
  nsTObserverArray<nsCOMPtr<nsIMsgSendListener> >::ForwardIterator iter(mExternalSendListeners);
  nsCOMPtr<nsIMsgSendListener> externalSendListener;

  while (iter.HasMore())
  {
    externalSendListener = iter.GetNext();
    externalSendListener->OnSendNotPerformed(aMsgID, aStatus);
  }
  return NS_OK;
}

NS_IMETHODIMP nsMsgCompose::OnGetDraftFolderURI(const char *aFolderURI)
{
  m_folderName = aFolderURI;
  nsTObserverArray<nsCOMPtr<nsIMsgSendListener> >::ForwardIterator iter(mExternalSendListeners);
  nsCOMPtr<nsIMsgSendListener> externalSendListener;

  while (iter.HasMore())
  {
    externalSendListener = iter.GetNext();
    externalSendListener->OnGetDraftFolderURI(aFolderURI);
  }
  return NS_OK;
}

////////////////////////////////////////////////////////////////////////////////////
// This is the listener class for both the send operation and the copy operation.
// We have to create this class to listen for message send completion and deal with
// failures in both send and copy operations
////////////////////////////////////////////////////////////////////////////////////
NS_IMPL_ADDREF(nsMsgComposeSendListener)
NS_IMPL_RELEASE(nsMsgComposeSendListener)

/*
NS_IMPL_QUERY_INTERFACE(nsMsgComposeSendListener,
                         nsIMsgComposeSendListener,
                         nsIMsgSendListener,
                         nsIMsgCopyServiceListener,
                         nsIWebProgressListener)
*/
NS_INTERFACE_MAP_BEGIN(nsMsgComposeSendListener)
  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIMsgComposeSendListener)
  NS_INTERFACE_MAP_ENTRY(nsIMsgComposeSendListener)
  NS_INTERFACE_MAP_ENTRY(nsIMsgSendListener)
  NS_INTERFACE_MAP_ENTRY(nsIMsgCopyServiceListener)
  NS_INTERFACE_MAP_ENTRY(nsIWebProgressListener)
NS_INTERFACE_MAP_END


nsMsgComposeSendListener::nsMsgComposeSendListener(void)
{
  mDeliverMode = 0;
}

nsMsgComposeSendListener::~nsMsgComposeSendListener(void)
{
}

NS_IMETHODIMP nsMsgComposeSendListener::SetMsgCompose(nsIMsgCompose *obj)
{
  mWeakComposeObj = do_GetWeakReference(obj);
  return NS_OK;
}

NS_IMETHODIMP nsMsgComposeSendListener::SetDeliverMode(MSG_DeliverMode deliverMode)
{
  mDeliverMode = deliverMode;
  return NS_OK;
}

nsresult
nsMsgComposeSendListener::OnStartSending(const char *aMsgID, uint32_t aMsgSize)
{
  nsresult rv;
  nsCOMPtr<nsIMsgSendListener> composeSendListener = do_QueryReferent(mWeakComposeObj, &rv);
  if (NS_SUCCEEDED(rv) && composeSendListener)
    composeSendListener->OnStartSending(aMsgID, aMsgSize);

  return NS_OK;
}

nsresult
nsMsgComposeSendListener::OnProgress(const char *aMsgID, uint32_t aProgress, uint32_t aProgressMax)
{
  nsresult rv;
  nsCOMPtr<nsIMsgSendListener> composeSendListener = do_QueryReferent(mWeakComposeObj, &rv);
  if (NS_SUCCEEDED(rv) && composeSendListener)
    composeSendListener->OnProgress(aMsgID, aProgress, aProgressMax);
  return NS_OK;
}

nsresult
nsMsgComposeSendListener::OnStatus(const char *aMsgID, const char16_t *aMsg)
{
  nsresult rv;
  nsCOMPtr<nsIMsgSendListener> composeSendListener = do_QueryReferent(mWeakComposeObj, &rv);
  if (NS_SUCCEEDED(rv) && composeSendListener)
    composeSendListener->OnStatus(aMsgID, aMsg);
  return NS_OK;
}

nsresult nsMsgComposeSendListener::OnSendNotPerformed(const char *aMsgID, nsresult aStatus)
{
 // since OnSendNotPerformed is called in the case where the user aborts the operation
 // by closing the compose window, we need not do the stuff required
 // for closing the windows. However we would need to do the other operations as below.

  nsresult rv = NS_OK;
  nsCOMPtr<nsIMsgCompose> msgCompose = do_QueryReferent(mWeakComposeObj, &rv);
  if (msgCompose)
    msgCompose->NotifyStateListeners(nsIMsgComposeNotificationType::ComposeProcessDone, aStatus);

  nsCOMPtr<nsIMsgSendListener> composeSendListener = do_QueryReferent(mWeakComposeObj, &rv);
  if (NS_SUCCEEDED(rv) && composeSendListener)
    composeSendListener->OnSendNotPerformed(aMsgID, aStatus);

  return rv;
}

nsresult nsMsgComposeSendListener::OnStopSending(const char *aMsgID, nsresult aStatus,
                                                 const char16_t *aMsg, nsIFile *returnFile)
{
  nsresult rv = NS_OK;

  nsCOMPtr<nsIMsgCompose> msgCompose = do_QueryReferent(mWeakComposeObj, &rv);
  if (msgCompose)
  {
    nsCOMPtr<nsIMsgProgress> progress;
    msgCompose->GetProgress(getter_AddRefs(progress));

    if (NS_SUCCEEDED(aStatus))
    {
      nsCOMPtr<nsIMsgCompFields> compFields;
      msgCompose->GetCompFields(getter_AddRefs(compFields));

      // only process the reply flags if we successfully sent the message
      msgCompose->ProcessReplyFlags();

      // See if there is a composer window
      bool hasDomWindow = true;
      nsCOMPtr<mozIDOMWindowProxy> domWindow;
      rv = msgCompose->GetDomWindow(getter_AddRefs(domWindow));
      if (NS_FAILED(rv) || !domWindow)
        hasDomWindow = false;

      // Close the window ONLY if we are not going to do a save operation
      nsAutoString fieldsFCC;
      if (NS_SUCCEEDED(compFields->GetFcc(fieldsFCC)))
      {
        if (!fieldsFCC.IsEmpty())
        {
          if (fieldsFCC.LowerCaseEqualsLiteral("nocopy://"))
          {
            msgCompose->NotifyStateListeners(nsIMsgComposeNotificationType::ComposeProcessDone, NS_OK);
            if (progress)
            {
              progress->UnregisterListener(this);
              progress->CloseProgressDialog(false);
            }
            if (hasDomWindow)
              msgCompose->CloseWindow();
          }
        }
      }
      else
      {
        msgCompose->NotifyStateListeners(nsIMsgComposeNotificationType::ComposeProcessDone, NS_OK);
        if (progress)
        {
          progress->UnregisterListener(this);
          progress->CloseProgressDialog(false);
        }
        if (hasDomWindow)
          msgCompose->CloseWindow();  // if we fail on the simple GetFcc call, close the window to be safe and avoid
                                      // windows hanging around to prevent the app from exiting.
      }

      // Remove the current draft msg when sending draft is done.
      bool deleteDraft;
      msgCompose->GetDeleteDraft(&deleteDraft);
      if (deleteDraft)
        RemoveCurrentDraftMessage(msgCompose, false);
    }
    else
    {
      msgCompose->NotifyStateListeners(nsIMsgComposeNotificationType::ComposeProcessDone, aStatus);
      if (progress)
      {
        progress->CloseProgressDialog(true);
        progress->UnregisterListener(this);
      }
    }

  }

  nsCOMPtr<nsIMsgSendListener> composeSendListener = do_QueryReferent(mWeakComposeObj, &rv);
  if (NS_SUCCEEDED(rv) && composeSendListener)
    composeSendListener->OnStopSending(aMsgID, aStatus, aMsg, returnFile);

  return rv;
}

nsresult
nsMsgComposeSendListener::OnGetDraftFolderURI(const char *aFolderURI)
{
  nsresult rv;
  nsCOMPtr<nsIMsgSendListener> composeSendListener = do_QueryReferent(mWeakComposeObj, &rv);
  if (NS_SUCCEEDED(rv) && composeSendListener)
    composeSendListener->OnGetDraftFolderURI(aFolderURI);

  return NS_OK;
}


nsresult
nsMsgComposeSendListener::OnStartCopy()
{
  return NS_OK;
}

nsresult
nsMsgComposeSendListener::OnProgress(uint32_t aProgress, uint32_t aProgressMax)
{
  return NS_OK;
}

nsresult
nsMsgComposeSendListener::OnStopCopy(nsresult aStatus)
{
  nsresult rv = NS_OK;
  nsCOMPtr<nsIMsgCompose> msgCompose = do_QueryReferent(mWeakComposeObj, &rv);
  if (msgCompose)
  {
    if (mDeliverMode == nsIMsgSend::nsMsgQueueForLater ||
        mDeliverMode == nsIMsgSend::nsMsgDeliverBackground ||
        mDeliverMode == nsIMsgSend::nsMsgSaveAsDraft)
    {
      msgCompose->RememberQueuedDisposition();
    }

    // Ok, if we are here, we are done with the send/copy operation so
    // we have to do something with the window....SHOW if failed, Close
    // if succeeded

    nsCOMPtr<nsIMsgProgress> progress;
    msgCompose->GetProgress(getter_AddRefs(progress));
    if (progress)
    {
      // Unregister ourself from msg compose progress
      progress->UnregisterListener(this);
      progress->CloseProgressDialog(NS_FAILED(aStatus));
    }

    msgCompose->NotifyStateListeners(nsIMsgComposeNotificationType::ComposeProcessDone, aStatus);

    if (NS_SUCCEEDED(aStatus))
    {
      // We should only close the window if we are done. Things like templates
      // and drafts aren't done so their windows should stay open
      if (mDeliverMode == nsIMsgSend::nsMsgSaveAsDraft ||
          mDeliverMode == nsIMsgSend::nsMsgSaveAsTemplate)
      {
        msgCompose->NotifyStateListeners(nsIMsgComposeNotificationType::SaveInFolderDone, aStatus);
        // Remove the current draft msg when saving as draft/template is done.
        msgCompose->SetDeleteDraft(true);
        RemoveCurrentDraftMessage(msgCompose, true);
      }
      else
      {
        // Remove (possible) draft if we're in send later mode
        if (mDeliverMode == nsIMsgSend::nsMsgQueueForLater ||
            mDeliverMode == nsIMsgSend::nsMsgDeliverBackground)
        {
          msgCompose->SetDeleteDraft(true);
          RemoveCurrentDraftMessage(msgCompose, true);
        }
        msgCompose->CloseWindow();
      }
    }
    msgCompose->ClearMessageSend();
  }

  return rv;
}

nsresult
nsMsgComposeSendListener::GetMsgFolder(nsIMsgCompose *compObj, nsIMsgFolder **msgFolder)
{
  nsresult rv;
  nsCOMPtr<nsIMsgFolder> aMsgFolder;
  nsCString folderUri;

  rv = compObj->GetSavedFolderURI(getter_Copies(folderUri));
  NS_ENSURE_SUCCESS(rv, rv);

  nsCOMPtr<nsIRDFService> rdfService (do_GetService("@mozilla.org/rdf/rdf-service;1", &rv));
  NS_ENSURE_SUCCESS(rv, rv);

  nsCOMPtr <nsIRDFResource> resource;
  rv = rdfService->GetResource(folderUri, getter_AddRefs(resource));
  NS_ENSURE_SUCCESS(rv, rv);

  aMsgFolder = do_QueryInterface(resource, &rv);
  NS_ENSURE_SUCCESS(rv, rv);
  NS_IF_ADDREF(*msgFolder = aMsgFolder);
  return rv;
}

nsresult
nsMsgComposeSendListener::RemoveCurrentDraftMessage(nsIMsgCompose *compObj, bool calledByCopy)
{
  nsresult rv;
  nsCOMPtr <nsIMsgCompFields> compFields = nullptr;

  rv = compObj->GetCompFields(getter_AddRefs(compFields));
  NS_ASSERTION(NS_SUCCEEDED(rv), "RemoveCurrentDraftMessage can't get compose fields");
  if (NS_FAILED(rv) || !compFields)
    return rv;

  nsCString curDraftIdURL;
  nsMsgKey newUid = 0;
  nsCString newDraftIdURL;
  nsCOMPtr<nsIMsgFolder> msgFolder;

  rv = compFields->GetDraftId(getter_Copies(curDraftIdURL));
  NS_ASSERTION(NS_SUCCEEDED(rv), "RemoveCurrentDraftMessage can't get draft id");

  // Skip if no draft id (probably a new draft msg).
  if (NS_SUCCEEDED(rv) && !curDraftIdURL.IsEmpty())
  {
    nsCOMPtr <nsIMsgDBHdr> msgDBHdr;
    rv = GetMsgDBHdrFromURI(curDraftIdURL.get(), getter_AddRefs(msgDBHdr));
    NS_ASSERTION(NS_SUCCEEDED(rv), "RemoveCurrentDraftMessage can't get msg header DB interface pointer.");
    if (NS_SUCCEEDED(rv) && msgDBHdr)
    {
      do { // Break on failure or removal not needed.
        // Get the folder for the message resource.
        rv = msgDBHdr->GetFolder(getter_AddRefs(msgFolder));
        NS_ASSERTION(NS_SUCCEEDED(rv), "RemoveCurrentDraftMessage can't get msg folder interface pointer.");
        if (NS_FAILED(rv) || !msgFolder)
          break;

        // Only do this if it's a drafts folder.
        bool isDraft;
        msgFolder->GetFlag(nsMsgFolderFlags::Drafts, &isDraft);
        if (!isDraft)
          break;

        // Only remove if the message is actually in the db. It might have only
        // been in the use cache.
        nsMsgKey key;
        rv = msgDBHdr->GetMessageKey(&key);
        if (NS_FAILED(rv))
          break;
        nsCOMPtr<nsIMsgDatabase> db;
        msgFolder->GetMsgDatabase(getter_AddRefs(db));
        if (!db)
          break;
        bool containsKey = false;
        db->ContainsKey(key, &containsKey);
        if (!containsKey)
          break;

        // Build the msg array.
        nsCOMPtr<nsIMutableArray> messageArray(do_CreateInstance(NS_ARRAY_CONTRACTID, &rv));
        NS_ASSERTION(NS_SUCCEEDED(rv), "RemoveCurrentDraftMessage can't allocate array.");
        if (NS_FAILED(rv) || !messageArray)
          break;
        rv = messageArray->AppendElement(msgDBHdr, false);
        NS_ASSERTION(NS_SUCCEEDED(rv), "RemoveCurrentDraftMessage can't append msg header to array.");
        if (NS_FAILED(rv))
          break;

        // Ready to delete the msg.
        rv = msgFolder->DeleteMessages(messageArray, nullptr, true, false, nullptr, false /*allowUndo*/);
        NS_ASSERTION(NS_SUCCEEDED(rv), "RemoveCurrentDraftMessage can't delete message.");
      } while(false);
    }
    else
    {
      // If we get here we have the case where the draft folder
      // is on the server and
      // it's not currently open (in thread pane), so draft
      // msgs are saved to the server
      // but they're not in our local DB. In this case,
      // GetMsgDBHdrFromURI() will never
      // find the msg. If the draft folder is a local one
      // then we'll not get here because
      // the draft msgs are saved to the local folder and
      // are in local DB. Make sure the
      // msg folder is imap.  Even if we get here due to
      // DB errors (worst case), we should
      // still try to delete msg on the server because
      // that's where the master copy of the
      // msgs are stored, if draft folder is on the server.
      // For local case, since DB is bad
      // we can't do anything with it anyway so it'll be
      // noop in this case.
      rv = GetMsgFolder(compObj, getter_AddRefs(msgFolder));
      if (NS_SUCCEEDED(rv) && msgFolder)
      {
        nsCOMPtr <nsIMsgImapMailFolder> imapFolder = do_QueryInterface(msgFolder);
        NS_ASSERTION(imapFolder, "The draft folder MUST be an imap folder in order to mark the msg delete!");
        if (NS_SUCCEEDED(rv) && imapFolder)
        {
          const char * str = PL_strchr(curDraftIdURL.get(), '#');
          NS_ASSERTION(str, "Failed to get current draft id url");
          if (str)
          {
            nsAutoCString srcStr(str+1);
            nsresult err;
            nsMsgKey messageID = srcStr.ToInteger(&err);
            if (messageID != nsMsgKey_None)
            {
              rv = imapFolder->StoreImapFlags(kImapMsgDeletedFlag, true,
                                              &messageID, 1, nullptr);
            }
          }
        }
      }
    }
  }

  // Now get the new uid so that next save will remove the right msg
  // regardless whether or not the exiting msg can be deleted.
  if (calledByCopy)
  {
    nsCOMPtr<nsIMsgFolder> savedToFolder;
    nsCOMPtr<nsIMsgSend> msgSend;
    rv = compObj->GetMessageSend(getter_AddRefs(msgSend));
    NS_ASSERTION(msgSend, "RemoveCurrentDraftMessage msgSend is null.");
    if (NS_FAILED(rv) || !msgSend)
      return rv;

    rv = msgSend->GetMessageKey(&newUid);
    NS_ENSURE_SUCCESS(rv, rv);

    // Make sure we have a folder interface pointer
    rv = GetMsgFolder(compObj, getter_AddRefs(savedToFolder));

    // Reset draft (uid) url with the new uid.
    if (savedToFolder && newUid != nsMsgKey_None)
    {
      uint32_t folderFlags;
      savedToFolder->GetFlags(&folderFlags);
      if (folderFlags & nsMsgFolderFlags::Drafts)
      {
        rv = savedToFolder->GenerateMessageURI(newUid, newDraftIdURL);
        NS_ENSURE_SUCCESS(rv, rv);
        compFields->SetDraftId(newDraftIdURL.get());
      }
    }
  }
  return rv;
}

nsresult
nsMsgComposeSendListener::SetMessageKey(nsMsgKey aMessageKey)
{
  return NS_OK;
}

nsresult
nsMsgComposeSendListener::GetMessageId(nsACString& messageId)
{
  return NS_OK;
}

/* void onStateChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in unsigned long aStateFlags, in nsresult aStatus); */
NS_IMETHODIMP nsMsgComposeSendListener::OnStateChange(nsIWebProgress *aWebProgress, nsIRequest *aRequest, uint32_t aStateFlags, nsresult aStatus)
{
  if (aStateFlags == nsIWebProgressListener::STATE_STOP)
  {
    nsCOMPtr<nsIMsgCompose> msgCompose = do_QueryReferent(mWeakComposeObj);
    if (msgCompose)
    {
      nsCOMPtr<nsIMsgProgress> progress;
      msgCompose->GetProgress(getter_AddRefs(progress));

      // Time to stop any pending operation...
      if (progress)
      {
        // Unregister ourself from msg compose progress
        progress->UnregisterListener(this);

        bool bCanceled = false;
        progress->GetProcessCanceledByUser(&bCanceled);
        if (bCanceled)
        {
          nsresult rv;
          nsCOMPtr<nsIStringBundleService> bundleService =
            mozilla::services::GetStringBundleService();
          NS_ENSURE_TRUE(bundleService, NS_ERROR_UNEXPECTED);
          nsCOMPtr<nsIStringBundle> bundle;
          rv = bundleService->CreateBundle(
            "chrome://messenger/locale/messengercompose/composeMsgs.properties",
            getter_AddRefs(bundle));
          NS_ENSURE_SUCCESS(rv, rv);
          nsString msg;
          bundle->GetStringFromName(u"msgCancelling", getter_Copies(msg));
          progress->OnStatusChange(nullptr, nullptr, NS_OK, msg.get());
        }
      }

      nsCOMPtr<nsIMsgSend> msgSend;
      msgCompose->GetMessageSend(getter_AddRefs(msgSend));
      if (msgSend)
        msgSend->Abort();
    }
  }
  return NS_OK;
}

/* void onProgressChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in long aCurSelfProgress, in long aMaxSelfProgress, in long aCurTotalProgress, in long aMaxTotalProgress); */
NS_IMETHODIMP nsMsgComposeSendListener::OnProgressChange(nsIWebProgress *aWebProgress, nsIRequest *aRequest, int32_t aCurSelfProgress, int32_t aMaxSelfProgress, int32_t aCurTotalProgress, int32_t aMaxTotalProgress)
{
  /* Ignore this call */
  return NS_OK;
}

/* void onLocationChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in nsIURI location, in unsigned long aFlags); */
NS_IMETHODIMP nsMsgComposeSendListener::OnLocationChange(nsIWebProgress *aWebProgress, nsIRequest *aRequest, nsIURI *location, uint32_t aFlags)
{
  /* Ignore this call */
  return NS_OK;
}

/* void onStatusChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in nsresult aStatus, in wstring aMessage); */
NS_IMETHODIMP nsMsgComposeSendListener::OnStatusChange(nsIWebProgress *aWebProgress, nsIRequest *aRequest, nsresult aStatus, const char16_t *aMessage)
{
  /* Ignore this call */
  return NS_OK;
}

/* void onSecurityChange (in nsIWebProgress aWebProgress, in nsIRequest aRequest, in unsigned long state); */
NS_IMETHODIMP nsMsgComposeSendListener::OnSecurityChange(nsIWebProgress *aWebProgress, nsIRequest *aRequest, uint32_t state)
{
  /* Ignore this call */
  return NS_OK;
}

nsresult
nsMsgCompose::ConvertHTMLToText(nsIFile *aSigFile, nsString &aSigData)
{
  nsAutoString origBuf;

  nsresult rv = LoadDataFromFile(aSigFile, origBuf);
  NS_ENSURE_SUCCESS (rv, rv);

  ConvertBufToPlainText(origBuf, false, false, true, true);
  aSigData = origBuf;
  return NS_OK;
}

nsresult
nsMsgCompose::ConvertTextToHTML(nsIFile *aSigFile, nsString &aSigData)
{
  nsresult    rv;
  nsAutoString    origBuf;

  rv = LoadDataFromFile(aSigFile, origBuf);
  if (NS_FAILED(rv))
    return rv;

  // Ok, once we are here, we need to escape the data to make sure that
  // we don't do HTML stuff with plain text sigs.
  //
  char16_t *escaped = MsgEscapeHTML2(origBuf.get(), origBuf.Length());
  if (escaped)
  {
    aSigData.Append(escaped);
    NS_Free(escaped);
  }
  else
    aSigData.Append(origBuf);
  return NS_OK;
}

nsresult
nsMsgCompose::LoadDataFromFile(nsIFile *file, nsString &sigData,
                               bool aAllowUTF8, bool aAllowUTF16)
{
  int32_t       readSize;
  uint32_t       nGot;
  char          *readBuf;
  char          *ptr;

  bool isDirectory = false;
  file->IsDirectory(&isDirectory);
  if (isDirectory) {
    NS_ERROR("file is a directory");
    return NS_MSG_ERROR_READING_FILE;
  }


  nsCOMPtr <nsIInputStream> inputFile;
  nsresult rv = NS_NewLocalFileInputStream(getter_AddRefs(inputFile), file);
  if (NS_FAILED(rv))
    return NS_MSG_ERROR_READING_FILE;

  int64_t fileSize;
  file->GetFileSize(&fileSize);
  readSize = (uint32_t) fileSize;


  ptr = readBuf = (char *)PR_Malloc(readSize + 1);  if (!readBuf)
    return NS_ERROR_OUT_OF_MEMORY;
  memset(readBuf, 0, readSize + 1);

  while (readSize) {
    inputFile->Read(ptr, readSize, &nGot);
    if (nGot) {
      readSize -= nGot;
      ptr += nGot;
    }
    else {
      readSize = 0;
    }
  }
  inputFile->Close();

  readSize = (uint32_t) fileSize;

  nsAutoCString sigEncoding(nsMsgI18NParseMetaCharset(file));
  bool removeSigCharset = !sigEncoding.IsEmpty() && m_composeHTML;

  if (sigEncoding.IsEmpty()) {
    if (aAllowUTF8 && MsgIsUTF8(nsDependentCString(readBuf))) {
      sigEncoding.Assign("UTF-8");
    }
    else if (sigEncoding.IsEmpty() && aAllowUTF16 &&
             readSize % 2 == 0 && readSize >= 2 &&
             ((readBuf[0] == char(0xFE) && readBuf[1] == char(0xFF)) ||
              (readBuf[0] == char(0xFF) && readBuf[1] == char(0xFE)))) {
      sigEncoding.Assign("UTF-16");
    }
    else {
      //default to platform encoding for plain text files w/o meta charset
      nsAutoCString textFileCharset;
      nsMsgI18NTextFileCharset(textFileCharset);
      sigEncoding.Assign(textFileCharset);
    }
  }

  nsAutoCString readStr(readBuf, (int32_t) fileSize);
  PR_FREEIF(readBuf);

  // XXX: ^^^ could really use nsContentUtils::SlurpFileToString instead!

  if (NS_FAILED(ConvertToUnicode(sigEncoding.get(), readStr, sigData)))
    CopyASCIItoUTF16(readStr, sigData);

  //remove sig meta charset to allow user charset override during composition
  if (removeSigCharset)
  {
    nsAutoCString metaCharset("charset=");
    metaCharset.Append(sigEncoding);
    int32_t pos = sigData.Find(metaCharset.BeginReading(), true);
    if (pos != kNotFound)
      sigData.Cut(pos, metaCharset.Length());
  }
  return NS_OK;
}

/**
 * If the data contains file URLs, convert them to data URLs instead.
 * This is intended to be used in for signature files, so that we can make sure
 * images loaded into the editor are available on send.
 */
nsresult
nsMsgCompose::ReplaceFileURLs(nsString &aData)
{
  int32_t fPos;
  int32_t offset = -1;  // We're using RFind(), so offset -1 is from the very right.

  // XXX This code is rather incomplete since it looks for "file://" even
  // outside tags.
  while ((fPos = aData.RFind("file://", true, offset)) != kNotFound) {
    bool quoted = false;
    char16_t q = 'x';  // initialise to anything to keep compilers happy.
    if (fPos > 0) {
      q = aData.CharAt(fPos - 1);
      quoted = (q == '"' || q == '\'');
    }
    int32_t end = kNotFound;
    if (quoted) {
      end = aData.FindChar(q, fPos);
    }
    else {
      int32_t spacePos = aData.FindChar(' ', fPos);
      int32_t gtPos = aData.FindChar('>', fPos);
      if (gtPos != kNotFound && spacePos != kNotFound) {
        end = (spacePos < gtPos) ? spacePos : gtPos;
      }
      else if (gtPos == kNotFound && spacePos != kNotFound) {
        end = spacePos;
      }
      else if (gtPos != kNotFound && spacePos == kNotFound) {
        end = gtPos;
      }
    }
    if (end == kNotFound) {
      break;
    }
    nsString fileURL;
    fileURL = Substring(aData, fPos, end - fPos);
    nsString dataURL;
    nsresult rv = DataURLForFileURL(fileURL, dataURL);
    // If this one failed, maybe because the file wasn't found,
    // continue to process the next one.
    if (NS_SUCCEEDED(rv)) {
      aData.Replace(fPos, end - fPos, dataURL);
    }
    if (fPos == 0)
      break;
    offset = fPos - 1;
  }
  return NS_OK;
}

nsresult
nsMsgCompose::DataURLForFileURL(const nsAString &aFileURL, nsAString &aDataURL)
{
  nsresult rv;
  nsCOMPtr<nsIMIMEService> mime = do_GetService("@mozilla.org/mime;1", &rv);
  NS_ENSURE_SUCCESS(rv, rv);

  nsCOMPtr<nsIURI> fileUri;
  rv = NS_NewURI(getter_AddRefs(fileUri), NS_ConvertUTF16toUTF8(aFileURL).get());
  NS_ENSURE_SUCCESS(rv, rv);

  nsCOMPtr<nsIFileURL> fileUrl(do_QueryInterface(fileUri, &rv));
  NS_ENSURE_SUCCESS(rv, rv);
  nsCOMPtr<nsIFile> file;
  rv = fileUrl->GetFile(getter_AddRefs(file));
  NS_ENSURE_SUCCESS(rv, rv);

  nsCString type;
  rv = mime->GetTypeFromFile(file, type);
  NS_ENSURE_SUCCESS(rv, rv);

  nsCString data;
  rv = nsContentUtils::SlurpFileToString(file, data);
  NS_ENSURE_SUCCESS(rv, rv);

  aDataURL.AssignLiteral("data:");
  AppendUTF8toUTF16(type, aDataURL);

  nsAutoString filename;
  rv = file->GetLeafName(filename);
  if (NS_SUCCEEDED(rv)) {
    nsAutoCString fn;
    MsgEscapeURL(NS_ConvertUTF16toUTF8(filename),
      nsINetUtil::ESCAPE_URL_FILE_BASENAME | nsINetUtil::ESCAPE_URL_FORCED, fn);
    if (!fn.IsEmpty()) {
      aDataURL.AppendLiteral(";filename=");
      aDataURL.Append(NS_ConvertUTF8toUTF16(fn));
    }
  }

  aDataURL.AppendLiteral(";base64,");
  char *result = PL_Base64Encode(data.get(), data.Length(), nullptr);
  nsDependentCString base64data(result);
  NS_ENSURE_SUCCESS(rv, rv);
  AppendUTF8toUTF16(base64data, aDataURL);
  return NS_OK;
}

nsresult
nsMsgCompose::BuildQuotedMessageAndSignature(void)
{
  //
  // This should never happen...if it does, just bail out...
  //
  NS_ASSERTION(m_editor, "BuildQuotedMessageAndSignature but no editor!\n");
  if (!m_editor)
    return NS_ERROR_FAILURE;

  // We will fire off the quote operation and wait for it to
  // finish before we actually do anything with Ender...
  return QuoteOriginalMessage();
}

//
// This will process the signature file for the user. This method
// will always append the results to the mMsgBody member variable.
//
nsresult
nsMsgCompose::ProcessSignature(nsIMsgIdentity *identity, bool aQuoted, nsString *aMsgBody)
{
  nsresult    rv = NS_OK;

  // Now, we can get sort of fancy. This is the time we need to check
  // for all sorts of user defined stuff, like signatures and editor
  // types and the like!
  //
  //    user_pref(".....sig_file", "y:\\sig.html");
  //    user_pref(".....attach_signature", true);
  //    user_pref(".....htmlSigText", "unicode sig");
  //
  // Note: We will have intelligent signature behavior in that we
  // look at the signature file first...if the extension is .htm or
  // .html, we assume its HTML, otherwise, we assume it is plain text
  //
  // ...and that's not all! What we will also do now is look and see if
  // the file is an image file. If it is an image file, then we should
  // insert the correct HTML into the composer to have it work, but if we
  // are doing plain text compose, we should insert some sort of message
  // saying "Image Signature Omitted" or something (not done yet).
  //
  // If there's a sig pref, it will only be used if there is no sig file defined,
  // thus if attach_signature is checked, htmlSigText is ignored (bug 324495).
  // Plain-text signatures may or may not have a trailing line break (bug 428040).

  nsAutoCString sigNativePath;
  bool          attachFile = false;
  bool          useSigFile = false;
  bool          htmlSig = false;
  bool          imageSig = false;
  nsAutoString  sigData;
  nsAutoString sigOutput;
  int32_t      reply_on_top = 0;
  bool         sig_bottom = true;
  bool          suppressSigSep = false;

  nsCOMPtr<nsIFile> sigFile;
  if (identity)
  {
    if (!CheckIncludeSignaturePrefs(identity))
      return NS_OK;

    identity->GetReplyOnTop(&reply_on_top);
    identity->GetSigBottom(&sig_bottom);
    identity->GetSuppressSigSep(&suppressSigSep);

    rv = identity->GetAttachSignature(&attachFile);
    if (NS_SUCCEEDED(rv) && attachFile)
    {
      rv = identity->GetSignature(getter_AddRefs(sigFile));
      if (NS_SUCCEEDED(rv) && sigFile) {
        rv = sigFile->GetNativePath(sigNativePath);
        if (NS_SUCCEEDED(rv) && !sigNativePath.IsEmpty()) {
          bool exists = false;
          sigFile->Exists(&exists);
          if (exists) {
            useSigFile = true; // ok, there's a signature file

            // Now, most importantly, we need to figure out what the content type is for
            // this signature...if we can't, we assume text
            nsAutoCString sigContentType;
            nsresult rv2; // don't want to clobber the other rv
            nsCOMPtr<nsIMIMEService> mimeFinder (do_GetService(NS_MIMESERVICE_CONTRACTID, &rv2));
            if (NS_SUCCEEDED(rv2)) {
              rv2 = mimeFinder->GetTypeFromFile(sigFile, sigContentType);
              if (NS_SUCCEEDED(rv2)) {
                if (StringBeginsWith(sigContentType, NS_LITERAL_CSTRING("image/"), nsCaseInsensitiveCStringComparator()))
                  imageSig = true;
                else if (sigContentType.Equals(TEXT_HTML, nsCaseInsensitiveCStringComparator()))
                  htmlSig = true;
              }
            }
          }
        }
      }
    }
  }

  // Unless signature to be attached from file, use preference value;
  // the htmlSigText value is always going to be treated as html if
  // the htmlSigFormat pref is true, otherwise it is considered text
  nsAutoString prefSigText;
  if (identity && !attachFile)
    identity->GetHtmlSigText(prefSigText);
  // Now, if they didn't even want to use a signature, we should
  // just return nicely.
  //
  if ((!useSigFile  && prefSigText.IsEmpty()) || NS_FAILED(rv))
    return NS_OK;

  static const char      htmlBreak[] = "<br>";
  static const char      dashes[] = "-- ";
  static const char      htmlsigopen[] = "<div class=\"moz-signature\">";
  static const char      htmlsigclose[] = "</div>";    /* XXX: Due to a bug in
                             4.x' HTML editor, it will not be able to
                             break this HTML sig, if quoted (for the user to
                             interleave a comment). */
  static const char      _preopen[] = "<pre class=\"moz-signature\" cols=%d>";
  char*                  preopen;
  static const char      preclose[] = "</pre>";

  int32_t wrapLength = 72; // setup default value in case GetWrapLength failed
  GetWrapLength(&wrapLength);
  preopen = PR_smprintf(_preopen, wrapLength);
  if (!preopen)
    return NS_ERROR_OUT_OF_MEMORY;

  bool paragraphMode =
    mozilla::Preferences::GetBool("mail.compose.default_to_paragraph", false);

  if (imageSig)
  {
    // We have an image signature. If we're using the in HTML composer, we
    // should put in the appropriate HTML for inclusion, otherwise, do nothing.
    if (m_composeHTML)
    {
      if (!paragraphMode)
        sigOutput.AppendLiteral(htmlBreak);
      sigOutput.AppendLiteral(htmlsigopen);
      if ((mType == nsIMsgCompType::NewsPost || !suppressSigSep) &&
          (reply_on_top != 1 || sig_bottom || !aQuoted)) {
        sigOutput.AppendLiteral(dashes);
      }

      sigOutput.AppendLiteral(htmlBreak);
      sigOutput.AppendLiteral("<img src='");

      nsCOMPtr<nsIURI> fileURI;
      nsresult rv = NS_NewFileURI(getter_AddRefs(fileURI), sigFile);
      NS_ENSURE_SUCCESS(rv, rv);
      nsCString fileURL;
      fileURI->GetSpec(fileURL);

      nsString dataURL;
      rv = DataURLForFileURL(NS_ConvertUTF8toUTF16(fileURL), dataURL);
      if (NS_SUCCEEDED(rv)) {
        sigOutput.Append(dataURL);
      }
      sigOutput.AppendLiteral("' border=0>");
      sigOutput.AppendLiteral(htmlsigclose);
    }
  }
  else if (useSigFile)
  {
    // is this a text sig with an HTML editor?
    if ( (m_composeHTML) && (!htmlSig) ) {
      ConvertTextToHTML(sigFile, sigData);
    }
    // is this a HTML sig with a text window?
    else if ( (!m_composeHTML) && (htmlSig) ) {
      ConvertHTMLToText(sigFile, sigData);
    }
    else { // We have a match...
      LoadDataFromFile(sigFile, sigData);  // Get the data!
      ReplaceFileURLs(sigData);
    }
  }

  // if we have a prefSigText, append it to sigData.
  if (!prefSigText.IsEmpty())
  {
    // set htmlSig if the pref is supposed to contain HTML code, defaults to false
    rv = identity->GetHtmlSigFormat(&htmlSig);
    if (NS_FAILED(rv))
      htmlSig = false;

    if (!m_composeHTML)
    {
      if (htmlSig)
        ConvertBufToPlainText(prefSigText, false, false, true, true);
      sigData.Append(prefSigText);
    }
    else
    {
      if (!htmlSig)
      {
        char16_t* escaped = MsgEscapeHTML2(prefSigText.get(), prefSigText.Length());
        if (escaped)
        {
          sigData.Append(escaped);
          NS_Free(escaped);
        }
        else
          sigData.Append(prefSigText);
      }
      else {
        ReplaceFileURLs(prefSigText);
        sigData.Append(prefSigText);
      }
    }
  }

  // post-processing for plain-text signatures to ensure we end in CR, LF, or CRLF
  if (!htmlSig && !m_composeHTML)
  {
    int32_t sigLength = sigData.Length();
    if (sigLength > 0 && !(sigData.CharAt(sigLength - 1) == '\r')
                      && !(sigData.CharAt(sigLength - 1) == '\n'))
      sigData.AppendLiteral(CRLF);
  }

  // Now that sigData holds data...if any, append it to the body in a nice
  // looking manner
  if (!sigData.IsEmpty())
  {
    if (m_composeHTML)
    {
      if (!paragraphMode)
        sigOutput.AppendLiteral(htmlBreak);

      if (htmlSig)
        sigOutput.AppendLiteral(htmlsigopen);
      else
        sigOutput.Append(NS_ConvertASCIItoUTF16(preopen));
    }

    if ((reply_on_top != 1 || sig_bottom || !aQuoted) &&
        sigData.Find("\r-- \r", true) < 0 &&
        sigData.Find("\n-- \n", true) < 0 &&
        sigData.Find("\n-- \r", true) < 0)
    {
      nsDependentSubstring firstFourChars(sigData, 0, 4);

      if ((mType == nsIMsgCompType::NewsPost || !suppressSigSep) &&
         !(firstFourChars.EqualsLiteral("-- \n") ||
           firstFourChars.EqualsLiteral("-- \r")))
      {
        sigOutput.AppendLiteral(dashes);

        if (!m_composeHTML || !htmlSig)
          sigOutput.AppendLiteral(CRLF);
        else if (m_composeHTML)
          sigOutput.AppendLiteral(htmlBreak);
      }
    }

    // add CRLF before signature for plain-text mode if signature comes before quote
    if (!m_composeHTML && reply_on_top == 1 && !sig_bottom && aQuoted)
      sigOutput.AppendLiteral(CRLF);

    sigOutput.Append(sigData);

    if (m_composeHTML)
    {
      if (htmlSig)
        sigOutput.AppendLiteral(htmlsigclose);
      else
        sigOutput.AppendLiteral(preclose);
    }
  }

  aMsgBody->Append(sigOutput);
  PR_Free(preopen);
  return NS_OK;
}

nsresult
nsMsgCompose::BuildBodyMessageAndSignature()
{
  nsresult    rv = NS_OK;

  //
  // This should never happen...if it does, just bail out...
  //
  if (!m_editor)
    return NS_ERROR_FAILURE;

  //
  // Now, we have the body so we can just blast it into the
  // composition editor window.
  //
  nsAutoString   body;
  m_compFields->GetBody(body);

  /* Some time we want to add a signature and sometime we wont. Let's figure that now...*/
  bool addSignature;
  bool isQuoted = false;
  switch (mType)
  {
    case nsIMsgCompType::ForwardInline :
      addSignature = true;
      isQuoted = true;
      break;
    case nsIMsgCompType::New :
    case nsIMsgCompType::MailToUrl :    /* same as New */
    case nsIMsgCompType::Reply :        /* should not happen! but just in case */
    case nsIMsgCompType::ReplyAll :       /* should not happen! but just in case */
    case nsIMsgCompType::ReplyToList :    /* should not happen! but just in case */
    case nsIMsgCompType::ForwardAsAttachment :  /* should not happen! but just in case */
    case nsIMsgCompType::NewsPost :
    case nsIMsgCompType::ReplyToGroup :
    case nsIMsgCompType::ReplyToSender :
    case nsIMsgCompType::ReplyToSenderAndGroup :
      addSignature = true;
      break;

    case nsIMsgCompType::Draft :
    case nsIMsgCompType::Template :
    case nsIMsgCompType::Redirect :
    case nsIMsgCompType::EditAsNew :
      addSignature = false;
      break;

    default :
      addSignature = false;
      break;
  }

  nsAutoString tSignature;
  if (addSignature)
    ProcessSignature(m_identity, isQuoted, &tSignature);

  // if type is new, but we have body, this is probably a mapi send, so we need to
  // replace '\n' with <br> so that the line breaks won't be lost by html.
  // if mailtourl, do the same.
  if (m_composeHTML && (mType == nsIMsgCompType::New || mType == nsIMsgCompType::MailToUrl))
    MsgReplaceSubstring(body, NS_LITERAL_STRING("\n"), NS_LITERAL_STRING("<br>"));

  // Restore flowed text wrapping for Drafts/Templates.
  // Look for unquoted lines - if we have an unquoted line
  // that ends in a space, join this line with the next one
  // by removing the end of line char(s).
  int32_t wrapping_enabled = 0;
  GetWrapLength(&wrapping_enabled);
  if (!m_composeHTML && wrapping_enabled)
  {
    bool quote = false;
    for (uint32_t i = 0; i < body.Length(); i ++)
    {
      if (i == 0 || body[i - 1] == '\n')  // newline
      {
        if (body[i] == '>')
        {
          quote = true;
          continue;
        }
        nsString s(Substring(body, i, 10));
        if (StringBeginsWith(s, NS_LITERAL_STRING("-- \r")) ||
            StringBeginsWith(s, NS_LITERAL_STRING("-- \n")))
        {
          i += 4;
          continue;
        }
        if (StringBeginsWith(s, NS_LITERAL_STRING("- -- \r")) ||
            StringBeginsWith(s, NS_LITERAL_STRING("- -- \n")))
        {
          i += 6;
          continue;
        }
      }
      if (body[i] == '\n' && i > 1)
      {
        if (quote)
        {
          quote = false;
          continue;   // skip quoted lines
        }
        uint32_t j = i - 1;  // look backward for space
        if (body[j] == '\r')
          j --;
        if (body[j] == ' ')  // join this line with next one
          body.Cut(j + 1, i - j);  // remove CRLF
      }
    }
  }

  nsString empty;
  rv = ConvertAndLoadComposeWindow(empty, body, tSignature,
                                   false, m_composeHTML);

  return rv;
}

nsresult nsMsgCompose::NotifyStateListeners(int32_t aNotificationType, nsresult aResult)
{

  if (aNotificationType == nsIMsgComposeNotificationType::SaveInFolderDone)
    ResetUrisForEmbeddedObjects();

  nsTObserverArray<nsCOMPtr<nsIMsgComposeStateListener> >::ForwardIterator iter(mStateListeners);
  nsCOMPtr<nsIMsgComposeStateListener> thisListener;

  while (iter.HasMore())
  {
    thisListener = iter.GetNext();

    switch (aNotificationType)
    {
    case nsIMsgComposeNotificationType::ComposeFieldsReady:
      thisListener->NotifyComposeFieldsReady();
      break;

    case nsIMsgComposeNotificationType::ComposeProcessDone:
      thisListener->ComposeProcessDone(aResult);
      break;

    case nsIMsgComposeNotificationType::SaveInFolderDone:
      thisListener->SaveInFolderDone(m_folderName.get());
      break;

    case nsIMsgComposeNotificationType::ComposeBodyReady:
      thisListener->NotifyComposeBodyReady();
      break;

    default:
      NS_NOTREACHED("Unknown notification");
      break;
    }
  }

  return NS_OK;
}

nsresult nsMsgCompose::AttachmentPrettyName(const nsACString & scheme, const char* charset, nsACString& _retval)
{
  nsresult rv;

  if (MsgLowerCaseEqualsLiteral(StringHead(scheme, 5), "file:"))
  {
    nsCOMPtr<nsIFile> file;
    rv = NS_GetFileFromURLSpec(scheme,
                               getter_AddRefs(file));
    NS_ENSURE_SUCCESS(rv, rv);
    nsAutoString leafName;
    rv = file->GetLeafName(leafName);
    NS_ENSURE_SUCCESS(rv, rv);
    CopyUTF16toUTF8(leafName, _retval);
    return rv;
  }

  // To work around a mysterious bug in VC++ 6.
  const char* cset = (!charset || !*charset) ? "UTF-8" : charset;

  nsCOMPtr<nsITextToSubURI> textToSubURI = do_GetService(NS_ITEXTTOSUBURI_CONTRACTID, &rv);
  NS_ENSURE_SUCCESS(rv, rv);

  nsAutoString retUrl;
  rv = textToSubURI->UnEscapeURIForUI(nsDependentCString(cset), scheme, retUrl);

  if (NS_SUCCEEDED(rv)) {
    CopyUTF16toUTF8(retUrl, _retval);
  } else {
    _retval.Assign(scheme);
  }
  if (MsgLowerCaseEqualsLiteral(StringHead(scheme, 5), "http:"))
    _retval.Cut(0, 7);

  return NS_OK;
}

/**
 * Retrieve address book directories and mailing lists.
 *
 * @param aDirUri               directory URI
 * @param allDirectoriesArray   retrieved directories and sub-directories
 * @param allMailListArray      retrieved maillists
 */
nsresult
nsMsgCompose::GetABDirAndMailLists(const nsACString& aDirUri,
                                   nsCOMArray<nsIAbDirectory> &aDirArray,
                                   nsTArray<nsMsgMailList> &aMailListArray)
{
  static bool collectedAddressbookFound;
  if (aDirUri.EqualsLiteral(kMDBDirectoryRoot))
    collectedAddressbookFound = false;

  nsresult rv;
  nsCOMPtr<nsIAbManager> abManager = do_GetService(NS_ABMANAGER_CONTRACTID, &rv);
  NS_ENSURE_SUCCESS(rv, rv);

  nsCOMPtr<nsIAbDirectory> directory;
  rv = abManager->GetDirectory(aDirUri, getter_AddRefs(directory));
  NS_ENSURE_SUCCESS(rv, rv);

  nsCOMPtr<nsISimpleEnumerator> subDirectories;
  if (NS_SUCCEEDED(directory->GetChildNodes(getter_AddRefs(subDirectories))) && subDirectories)
  {
    nsCOMPtr<nsISupports> item;
    bool hasMore;
    while (NS_SUCCEEDED(rv = subDirectories->HasMoreElements(&hasMore)) && hasMore)
    {
      if (NS_SUCCEEDED(subDirectories->GetNext(getter_AddRefs(item))))
      {
        directory = do_QueryInterface(item, &rv);
        if (NS_SUCCEEDED(rv))
        {
          bool bIsMailList;

          if (NS_SUCCEEDED(directory->GetIsMailList(&bIsMailList)) && bIsMailList)
          {
            aMailListArray.AppendElement(directory);
            continue;
          }

          nsCString uri;
          rv = directory->GetURI(uri);
          NS_ENSURE_SUCCESS(rv, rv);

          int32_t pos;
          if (uri.EqualsLiteral(kPersonalAddressbookUri))
            pos = 0;
          else
          {
            uint32_t count = aDirArray.Count();

            if (uri.EqualsLiteral(kCollectedAddressbookUri))
            {
              collectedAddressbookFound = true;
              pos = count;
            }
            else
            {
              if (collectedAddressbookFound && count > 1)
                pos = count - 1;
              else
                pos = count;
            }
          }

          aDirArray.InsertObjectAt(directory, pos);
          rv = GetABDirAndMailLists(uri, aDirArray, aMailListArray);
        }
      }
    }
  }
  return rv;
}

/**
 * Comparator for use with nsTArray::IndexOf to find a recipient.
 * This comparator will check if an "address" is a mail list or not.
 */
struct nsMsgMailListComparator
{
  // A mail list will have one of the formats
  //  1) "mName <mDescription>" when the list has a description
  //  2) "mName <mName>" when the list lacks description
  // A recipient is of the form "mName <mEmail>" - for equality the list
  // name must be the same. The recipient "email" must match the list name for
  // case 1, and the list description for case 2.
  bool Equals(const nsMsgMailList &mailList,
              const nsMsgRecipient &recipient) const {
    if (!mailList.mName.Equals(recipient.mName,
                               nsCaseInsensitiveStringComparator()))
      return false;
    return mailList.mDescription.IsEmpty() ?
      mailList.mName.Equals(recipient.mEmail, nsCaseInsensitiveStringComparator()) :
      mailList.mDescription.Equals(recipient.mEmail, nsCaseInsensitiveStringComparator());
  }
};

/**
 * Comparator for use with nsTArray::IndexOf to find a recipient.
 */
struct nsMsgRecipientComparator
{
  bool Equals(const nsMsgRecipient &recipient,
              const nsMsgRecipient &recipientToFind) const {
    if (!recipient.mEmail.Equals(recipientToFind.mEmail,
                                 nsCaseInsensitiveStringComparator()))
      return false;

    if (!recipient.mName.Equals(recipientToFind.mName,
                                nsCaseInsensitiveStringComparator()))
      return false;

    return true;
  }
};

/**
 * This function recursively resolves a mailing list and returns individual
 * email addresses. Nested lists are supported. It maintains an array of
 * already visited mailing lists to avoid endless recursion.
 *
 * @param aMailList             the list
 * @param allDirectoriesArray   all directories
 * @param allMailListArray      all maillists
 * @param mailListProcessed     maillists processed (to avoid recursive lists)
 * @param aListMembers          list members
 */
nsresult
nsMsgCompose::ResolveMailList(nsIAbDirectory* aMailList,
                              nsCOMArray<nsIAbDirectory> &allDirectoriesArray,
                              nsTArray<nsMsgMailList> &allMailListArray,
                              nsTArray<nsMsgMailList> &mailListProcessed,
                              nsTArray<nsMsgRecipient> &aListMembers)
{
  nsresult rv = NS_OK;

  nsCOMPtr<nsIMutableArray> mailListAddresses;
  rv = aMailList->GetAddressLists(getter_AddRefs(mailListAddresses));
  if (NS_FAILED(rv))
    return rv;

  uint32_t nbrAddresses = 0;
  mailListAddresses->GetLength(&nbrAddresses);
  for (uint32_t i = 0; i < nbrAddresses; i++)
  {
    nsCOMPtr<nsIAbCard> existingCard(do_QueryElementAt(mailListAddresses, i, &rv));
    NS_ENSURE_SUCCESS(rv, rv);

    nsMsgRecipient newRecipient;

    rv = existingCard->GetDisplayName(newRecipient.mName);
    NS_ENSURE_SUCCESS(rv, rv);
    rv = existingCard->GetPrimaryEmail(newRecipient.mEmail);
    NS_ENSURE_SUCCESS(rv, rv);

    if (newRecipient.mName.IsEmpty() && newRecipient.mEmail.IsEmpty()) {
      continue;
    }

    // First check if it's a mailing list.
    size_t index = allMailListArray.IndexOf(newRecipient, 0, nsMsgMailListComparator());
    if (index != allMailListArray.NoIndex && allMailListArray[index].mDirectory)
    {
      // Check if maillist processed.
      if (mailListProcessed.Contains(newRecipient, nsMsgMailListComparator())) {
        continue;
      }

      nsCOMPtr<nsIAbDirectory> directory2(allMailListArray[index].mDirectory);

      // Add mailList to mailListProcessed.
      mailListProcessed.AppendElement(directory2);

      // Resolve mailList members.
      rv = ResolveMailList(directory2,
                           allDirectoriesArray,
                           allMailListArray,
                           mailListProcessed,
                           aListMembers);
      NS_ENSURE_SUCCESS(rv, rv);

      continue;
    }

    // Check if recipient is in aListMembers.
    if (aListMembers.Contains(newRecipient, nsMsgRecipientComparator())) {
      continue;
    }

    // Now we need to insert the new address into the list of recipients.
    newRecipient.mCard = existingCard;
    newRecipient.mDirectory = aMailList;

    aListMembers.AppendElement(newRecipient);
  }

  return rv;
}

/**
 * Lookup the recipients as specified in the compose fields (To, Cc, Bcc)
 * in the address books and return an array of individual recipients.
 * Mailing lists are replaced by the cards they contain, nested and recursive
 * lists are taken care of, recipients contained in multiple lists are only
 * added once.
 *
 * @param recipientsList        (out) recipient array
 */
nsresult
nsMsgCompose::LookupAddressBook(RecipientsArray &recipientsList)
{
  nsresult rv = NS_OK;

  // First, build some arrays with the original recipients.

  nsAutoString originalRecipients[MAX_OF_RECIPIENT_ARRAY];
  m_compFields->GetTo(originalRecipients[0]);
  m_compFields->GetCc(originalRecipients[1]);
  m_compFields->GetBcc(originalRecipients[2]);

  for (uint32_t i = 0; i < MAX_OF_RECIPIENT_ARRAY; ++i)
  {
    if (originalRecipients[i].IsEmpty())
      continue;

    rv = m_compFields->SplitRecipientsEx(originalRecipients[i],
                                         recipientsList[i]);
    NS_ENSURE_SUCCESS(rv, rv);
  }

  // Then look them up in the Addressbooks
  bool stillNeedToSearch = true;
  nsCOMPtr<nsIAbDirectory> abDirectory;
  nsCOMPtr<nsIAbCard> existingCard;
  nsTArray<nsMsgMailList> mailListArray;
  nsTArray<nsMsgMailList> mailListProcessed;

  nsCOMArray<nsIAbDirectory> addrbookDirArray;
  rv = GetABDirAndMailLists(NS_LITERAL_CSTRING(kAllDirectoryRoot),
                            addrbookDirArray, mailListArray);
  if (NS_FAILED(rv))
    return rv;

  nsString dirPath;
  uint32_t nbrAddressbook = addrbookDirArray.Count();

  for (uint32_t k = 0; k < nbrAddressbook && stillNeedToSearch; ++k)
  {
    // Avoid recursive mailing lists.
    if (abDirectory && (addrbookDirArray[k] == abDirectory))
    {
      stillNeedToSearch = false;
      break;
    }

    abDirectory = addrbookDirArray[k];
    if (!abDirectory)
      continue;

    stillNeedToSearch = false;
    for (uint32_t i = 0; i < MAX_OF_RECIPIENT_ARRAY; i ++)
    {
      mailListProcessed.Clear();

      // Note: We check this each time to allow for length changes.
      for (uint32_t j = 0; j < recipientsList[i].Length(); j++)
      {
        nsMsgRecipient &recipient = recipientsList[i][j];
        if (!recipient.mDirectory)
        {
          // First check if it's a mailing list.
          size_t index = mailListArray.IndexOf(recipient, 0, nsMsgMailListComparator());
          if (index != mailListArray.NoIndex && mailListArray[index].mDirectory)
          {
            // Check mailList Processed.
            if (mailListProcessed.Contains(recipient, nsMsgMailListComparator())) {
              // Remove from recipientsList.
              recipientsList[i].RemoveElementAt(j--);
              continue;
            }

            nsCOMPtr<nsIAbDirectory> directory(mailListArray[index].mDirectory);

            // Add mailList to mailListProcessed.
            mailListProcessed.AppendElement(directory);

            // Resolve mailList members.
            nsTArray<nsMsgRecipient> members;
            rv = ResolveMailList(directory,
                                 addrbookDirArray,
                                 mailListArray,
                                 mailListProcessed,
                                 members);
            NS_ENSURE_SUCCESS(rv, rv);

            // Remove mailList from recipientsList.
            recipientsList[i].RemoveElementAt(j);

            // Merge members into recipientsList[i].
            uint32_t pos = 0;
            for (uint32_t c = 0; c < members.Length(); c++)
            {
              nsMsgRecipient &member = members[c];
              if (!recipientsList[i].Contains(member, nsMsgRecipientComparator())) {
                recipientsList[i].InsertElementAt(j + pos, member);
                pos++;
              }
            }
          }
          else
          {
            // Find a card that contains this e-mail address.
            rv = abDirectory->CardForEmailAddress(NS_ConvertUTF16toUTF8(recipient.mEmail),
                                                  getter_AddRefs(existingCard));
            if (NS_SUCCEEDED(rv) && existingCard)
            {
              recipient.mCard = existingCard;
              recipient.mDirectory = abDirectory;
            }
            else
            {
              stillNeedToSearch = true;
            }
          }
        }
      }
    }
  }

  return rv;
}

NS_IMETHODIMP
nsMsgCompose::ExpandMailingLists()
{
  RecipientsArray recipientsList;
  nsresult rv = LookupAddressBook(recipientsList);
  NS_ENSURE_SUCCESS(rv, rv);

  // Reset the final headers with the expanded mailing lists.
  nsAutoString recipientsStr;

  for (int i = 0; i < MAX_OF_RECIPIENT_ARRAY; ++i)
  {
    uint32_t nbrRecipients = recipientsList[i].Length();
    if (nbrRecipients == 0)
      continue;
    recipientsStr.Truncate();

    // Note: We check this each time to allow for length changes.
    for (uint32_t j = 0; j < recipientsList[i].Length(); ++j)
    {
      nsMsgRecipient &recipient = recipientsList[i][j];

      if (!recipientsStr.IsEmpty())
        recipientsStr.Append(char16_t(','));
      nsAutoString address;
      MakeMimeAddress(recipient.mName, recipient.mEmail, address);
      recipientsStr.Append(address);

      if (recipient.mCard)
      {
        bool readOnly;
        rv = recipient.mDirectory->GetReadOnly(&readOnly);
        NS_ENSURE_SUCCESS(rv, rv);

        // Bump the popularity index for this card since we are about to send
        // e-mail to it.
        if (!readOnly)
        {
          uint32_t popularityIndex = 0;
          if (NS_FAILED(recipient.mCard->GetPropertyAsUint32(
                kPopularityIndexProperty, &popularityIndex)))
          {
            // TB 2 wrote the popularity value as hex, so if we get here,
            // then we've probably got a hex value. We'll convert it back
            // to decimal, as that's the best we can do.

            nsCString hexPopularity;
            if (NS_SUCCEEDED(recipient.mCard->GetPropertyAsAUTF8String(
                kPopularityIndexProperty, hexPopularity)))
            {
              nsresult errorCode = NS_OK;
              popularityIndex = hexPopularity.ToInteger(&errorCode, 16);
              if (NS_FAILED(errorCode))
                // We failed, just set it to zero.
                popularityIndex = 0;
            }
            else
              // We couldn't get it as a string either, so just reset to zero.
              popularityIndex = 0;
          }

          recipient.mCard->SetPropertyAsUint32(kPopularityIndexProperty,
                                               ++popularityIndex);
          recipient.mDirectory->ModifyCard(recipient.mCard);
        }
      }
    }

    switch (i)
    {
    case 0: m_compFields->SetTo(recipientsStr);  break;
    case 1: m_compFields->SetCc(recipientsStr);  break;
    case 2: m_compFields->SetBcc(recipientsStr); break;
    }
  }

  return NS_OK;
}

/**
 * This function implements the decision logic for delivery format 'Auto-Detect',
 * including optional 'Auto-Downgrade' behaviour for HTML messages considered
 * convertible (silent, "lossless" conversion to plain text).
 * @param aConvertible  the result of analysing message body convertibility:
 *                      nsIMsgCompConvertible::Plain | Yes | Altering | No
 * @return              nsIMsgCompSendFormat::AskUser | PlainText | HTML | Both
 */
NS_IMETHODIMP
nsMsgCompose::DetermineHTMLAction(int32_t aConvertible, int32_t *result)
{
  NS_ENSURE_ARG_POINTER(result);
  nsresult rv;

  nsCOMPtr<nsIPrefBranch> prefBranch(do_GetService(NS_PREFSERVICE_CONTRACTID, &rv));
  NS_ENSURE_SUCCESS(rv, rv);

  // *** Message-centric Auto-Downgrade ***
  // If the message has practically no HTML formatting,
  // AND if user accepts auto-downgrading (send options pref),
  // bypass auto-detection of recipients' preferences and just
  // send the message as plain text (silent, "lossless" conversion);
  // which will also avoid asking for newsgroups for this typical scenario.
  bool autoDowngrade = true;
  rv = prefBranch->GetBoolPref("mailnews.sendformat.auto_downgrade", &autoDowngrade);
  NS_ENSURE_SUCCESS(rv, rv);
  if (autoDowngrade && (aConvertible == nsIMsgCompConvertible::Plain))
  {
    *result = nsIMsgCompSendFormat::PlainText;
    return NS_OK;
  }

  // *** Newsgroups ***
  // Right now, we don't have logic for newsgroups for intelligent send
  // preferences. Therefore, bail out early and save us a lot of work if there
  // are newsgroups.

  nsAutoString newsgroups;
  m_compFields->GetNewsgroups(newsgroups);

  if (!newsgroups.IsEmpty())
  {
    *result = nsIMsgCompSendFormat::AskUser;
    return NS_OK;
  }

  // *** Recipient-Centric Auto-Detect ***

  RecipientsArray recipientsList;
  rv = LookupAddressBook(recipientsList);
  NS_ENSURE_SUCCESS(rv, rv);

  // Finally return the list of non-HTML recipients if requested and/or rebuilt
  // the recipient field. Also, check for domain preference when preferFormat
  // is unknown.
  nsString plaintextDomains;
  nsString htmlDomains;

  if (prefBranch)
  {
    NS_GetUnicharPreferenceWithDefault(prefBranch, "mailnews.plaintext_domains",
                                       EmptyString(), plaintextDomains);
    NS_GetUnicharPreferenceWithDefault(prefBranch, "mailnews.html_domains",
                                       EmptyString(), htmlDomains);
  }

  // allHTML and allPlain are summary recipient scopes of format preference
  // according to address book and send options for recipient-centric Auto-Detect,
  // used by Auto-Detect to determine the appropriate message delivery format.

  // allHtml: All recipients prefer HTML.
  bool allHtml = true;

  // allPlain: All recipients prefer Plain Text.
  bool allPlain = true;

  // Exit the loop early if allHtml and allPlain both decay to false to save us
  // some work.
  for (int i = 0; i < MAX_OF_RECIPIENT_ARRAY && (allHtml || allPlain); ++i)
  {
    uint32_t nbrRecipients = recipientsList[i].Length();
    for (uint32_t j = 0; j < nbrRecipients && (allHtml || allPlain); ++j)
    {
      nsMsgRecipient &recipient = recipientsList[i][j];
      uint32_t preferFormat = nsIAbPreferMailFormat::unknown;
      if (recipient.mCard)
      {
        recipient.mCard->GetPropertyAsUint32(kPreferMailFormatProperty,
          &preferFormat);
      }

      // if we don't have a prefer format for a recipient, check the domain in
      // case we have a format defined for it
      if (preferFormat == nsIAbPreferMailFormat::unknown &&
          (!plaintextDomains.IsEmpty() || !htmlDomains.IsEmpty()))
      {
        int32_t atPos = recipient.mEmail.FindChar('@');
        if (atPos < 0)
          continue;

        nsDependentSubstring emailDomain = Substring(recipient.mEmail,
                                                     atPos + 1);
        if (IsInDomainList(emailDomain, plaintextDomains))
          preferFormat = nsIAbPreferMailFormat::plaintext;
        else if (IsInDomainList(emailDomain, htmlDomains))
          preferFormat = nsIAbPreferMailFormat::html;
      }

      // Determine the delivery format preference of this recipient and adjust
      // the summary recipient scopes of the message accordingly.
      switch (preferFormat)
      {
      case nsIAbPreferMailFormat::html:
        allPlain = false;
        break;

      case nsIAbPreferMailFormat::plaintext:
        allHtml = false;
        break;

      default: // nsIAbPreferMailFormat::unknown
        allHtml = false;
        allPlain = false;
        break;
      }
    }
  }

  // Here's the final part of recipient-centric Auto-Detect logic where we set
  // the actual send format (aka delivery format) after analysing recipients'
  // format preferences above.

  // If all recipients prefer HTML, then return HTML.
  if (allHtml)
  {
    *result = nsIMsgCompSendFormat::HTML;
    return NS_OK;
  }

  // If all recipients prefer plaintext, silently strip *all* HTML formatting,
  // regardless of (non-)convertibility, and send the message as plaintext.
  // **ToDo: UX-error-prevention, UX-wysiwyg: warn against dataloss potential.**
  if (allPlain)
  {
    *result = nsIMsgCompSendFormat::PlainText;
    return NS_OK;
  }

  // Otherwise, check the preference to see what action we should default to.
  // This pref covers all recipient scopes involving prefers-plain (except allplain)
  // and prefers-unknown. So we are mixing format conflict resolution options for
  // prefers-plain with default format setting for prefers-unknown; not ideal.
  int32_t action = nsIMsgCompSendFormat::AskUser;
  rv = prefBranch->GetIntPref("mail.default_html_action", &action);
  NS_ENSURE_SUCCESS(rv, rv);

  // If the action is a known send format, return the value to send in that format.
  // Otherwise, ask the user.
  // Note that the preference may default to 0 (Ask), which is not a valid value
  // for the following enum.
  if (action == nsIMsgCompSendFormat::PlainText ||
      action == nsIMsgCompSendFormat::HTML ||
      action == nsIMsgCompSendFormat::Both)
  {
    *result = action;
    return NS_OK;
  }

  // At this point, ask the user.
  *result = nsIMsgCompSendFormat::AskUser;
  return NS_OK;
}

/* Decides which tags trigger which convertible mode, i.e. here is the logic
   for BodyConvertible */
// Helper function. Parameters are not checked.
nsresult nsMsgCompose::TagConvertible(nsIDOMElement *node,  int32_t *_retval)
{
    nsresult rv;

    *_retval = nsIMsgCompConvertible::No;

    uint16_t nodeType;
    rv = node->GetNodeType(&nodeType);
    if (NS_FAILED(rv))
      return rv;

    nsAutoString element;
    rv = node->GetNodeName(element);
    if (NS_FAILED(rv))
      return rv;

    nsCOMPtr<nsIDOMNode> pItem;

    // style attribute on any element can change layout in any way, so that is not convertible.
    nsAutoString attribValue;
    if (NS_SUCCEEDED(node->GetAttribute(NS_LITERAL_STRING("style"), attribValue)) &&
        !attribValue.IsEmpty())
    {
      *_retval = nsIMsgCompConvertible::No;
      return NS_OK;
    }

    // moz-* classes are used internally by the editor and mail composition
    // (like moz-cite or moz-signature). Those can be discarded.
    // But any other ones are unconvertible. Style can be attached to them or any
    // other context (e.g. in microformats).
    if (NS_SUCCEEDED(node->GetAttribute(NS_LITERAL_STRING("class"), attribValue)) &&
        !attribValue.IsEmpty() &&
        !StringBeginsWith(attribValue, NS_LITERAL_STRING("moz-"), nsCaseInsensitiveStringComparator()))
    {
      *_retval = nsIMsgCompConvertible::No;
      return NS_OK;
    }
    // ID attributes can contain attached style/context or be target of links
    // so we should preserve them.
    if (NS_SUCCEEDED(node->GetAttribute(NS_LITERAL_STRING("id"), attribValue)) &&
        !attribValue.IsEmpty())
    {
      *_retval = nsIMsgCompConvertible::No;
      return NS_OK;
    }
    if      ( // some "simple" elements without "style" attribute
              element.LowerCaseEqualsLiteral("br") ||
              element.LowerCaseEqualsLiteral("p") ||
              element.LowerCaseEqualsLiteral("pre") ||
              element.LowerCaseEqualsLiteral("tt") ||
              element.LowerCaseEqualsLiteral("html") ||
              element.LowerCaseEqualsLiteral("head") ||
              element.LowerCaseEqualsLiteral("meta") ||
              element.LowerCaseEqualsLiteral("title")
            )
    {
      *_retval = nsIMsgCompConvertible::Plain;
    }
    else if (
              //element.LowerCaseEqualsLiteral("blockquote") || // see below
              element.LowerCaseEqualsLiteral("ul") ||
              element.LowerCaseEqualsLiteral("ol") ||
              element.LowerCaseEqualsLiteral("li") ||
              element.LowerCaseEqualsLiteral("dl") ||
              element.LowerCaseEqualsLiteral("dt") ||
              element.LowerCaseEqualsLiteral("dd")
            )
    {
      *_retval = nsIMsgCompConvertible::Yes;
    }
    else if (
              //element.LowerCaseEqualsLiteral("a") || // see below
              element.LowerCaseEqualsLiteral("h1") ||
              element.LowerCaseEqualsLiteral("h2") ||
              element.LowerCaseEqualsLiteral("h3") ||
              element.LowerCaseEqualsLiteral("h4") ||
              element.LowerCaseEqualsLiteral("h5") ||
              element.LowerCaseEqualsLiteral("h6") ||
              element.LowerCaseEqualsLiteral("hr") ||
              (
                mConvertStructs
                &&
                (
                  element.LowerCaseEqualsLiteral("em") ||
                  element.LowerCaseEqualsLiteral("strong") ||
                  element.LowerCaseEqualsLiteral("code") ||
                  element.LowerCaseEqualsLiteral("b") ||
                  element.LowerCaseEqualsLiteral("i") ||
                  element.LowerCaseEqualsLiteral("u")
                )
              )
            )
    {
      *_retval = nsIMsgCompConvertible::Altering;
    }
    else if (element.LowerCaseEqualsLiteral("body"))
    {
      *_retval = nsIMsgCompConvertible::Plain;

        bool hasAttribute;
        nsAutoString color;
        if (NS_SUCCEEDED(node->HasAttribute(NS_LITERAL_STRING("background"), &hasAttribute))
            && hasAttribute)  // There is a background image
          *_retval = nsIMsgCompConvertible::No;
        else if (NS_SUCCEEDED(node->HasAttribute(NS_LITERAL_STRING("text"), &hasAttribute)) &&
                 hasAttribute &&
                 NS_SUCCEEDED(node->GetAttribute(NS_LITERAL_STRING("text"), color)) &&
                 !color.EqualsLiteral("#000000")) {
          *_retval = nsIMsgCompConvertible::Altering;
        }
        else if (NS_SUCCEEDED(node->HasAttribute(NS_LITERAL_STRING("bgcolor"), &hasAttribute)) &&
                 hasAttribute &&
                 NS_SUCCEEDED(node->GetAttribute(NS_LITERAL_STRING("bgcolor"), color)) &&
                 !color.LowerCaseEqualsLiteral("#ffffff")) {
          *_retval = nsIMsgCompConvertible::Altering;
        }
        else if (NS_SUCCEEDED(node->HasAttribute(NS_LITERAL_STRING("dir"), &hasAttribute))
            && hasAttribute)  // dir=rtl attributes should not downconvert
          *_retval = nsIMsgCompConvertible::No;

        //ignore special color setting for link, vlink and alink at this point.
    }
    else if (element.LowerCaseEqualsLiteral("blockquote"))
    {
      // Skip <blockquote type="cite">
      *_retval = nsIMsgCompConvertible::Yes;

      if (NS_SUCCEEDED(node->GetAttribute(NS_LITERAL_STRING("type"), attribValue)) &&
          attribValue.LowerCaseEqualsLiteral("cite"))
      {
        *_retval = nsIMsgCompConvertible::Plain;
      }
    }
    else if (
              element.LowerCaseEqualsLiteral("div") ||
              element.LowerCaseEqualsLiteral("span") ||
              element.LowerCaseEqualsLiteral("a")
            )
    {
      /* Do some special checks for these tags. They are inside this |else if|
         for performance reasons */

      // Maybe, it's an <a> element inserted by another recognizer (e.g. 4.x')
      if (element.LowerCaseEqualsLiteral("a"))
      {
        /* Ignore anchor tag, if the URI is the same as the text
           (as inserted by recognizers) */
        *_retval = nsIMsgCompConvertible::Altering;

          nsAutoString hrefValue;
          bool hasChild;
          if (NS_SUCCEEDED(node->GetAttribute(NS_LITERAL_STRING("href"), hrefValue)) &&
              NS_SUCCEEDED(node->HasChildNodes(&hasChild)) && hasChild)
          {
            nsCOMPtr<nsIDOMNodeList> children;
            if (NS_SUCCEEDED(node->GetChildNodes(getter_AddRefs(children))) &&
                children &&
                NS_SUCCEEDED(children->Item(0, getter_AddRefs(pItem))) &&
                pItem)
            {
              nsAutoString textValue;
              if (NS_SUCCEEDED(pItem->GetNodeValue(textValue)) &&
                  textValue == hrefValue)
                *_retval = nsIMsgCompConvertible::Plain;
            }
          }
      }

      // Lastly, test, if it is just a "simple" <div> or <span>
      else if (
                element.LowerCaseEqualsLiteral("div") ||
                element.LowerCaseEqualsLiteral("span")
              )
      {
        *_retval = nsIMsgCompConvertible::Plain;
      }
    }

    return rv;
}

nsresult nsMsgCompose::_NodeTreeConvertible(nsIDOMElement *node, int32_t *_retval)
{
    NS_ENSURE_TRUE(node && _retval, NS_ERROR_NULL_POINTER);

    nsresult rv;
    int32_t result;

    // Check this node
    rv = TagConvertible(node, &result);
    if (NS_FAILED(rv))
        return rv;

    // Walk tree recursively to check the children
    bool hasChild;
    if (NS_SUCCEEDED(node->HasChildNodes(&hasChild)) && hasChild)
    {
      nsCOMPtr<nsIDOMNodeList> children;
      if (NS_SUCCEEDED(node->GetChildNodes(getter_AddRefs(children)))
          && children)
      {
        uint32_t nbrOfElements;
        rv = children->GetLength(&nbrOfElements);
        for (uint32_t i = 0; NS_SUCCEEDED(rv) && i < nbrOfElements; i++)
        {
          nsCOMPtr<nsIDOMNode> pItem;
          if (NS_SUCCEEDED(children->Item(i, getter_AddRefs(pItem)))
              && pItem)
          {
            // We assume all nodes that are not elements are convertible,
            // so only test elements.
            nsCOMPtr<nsIDOMElement> domElement = do_QueryInterface(pItem);
            if (domElement) {
              int32_t curresult;
              rv = _NodeTreeConvertible(domElement, &curresult);

              if (NS_SUCCEEDED(rv) && curresult > result)
                result = curresult;
            }
          }
        }
      }
    }

    *_retval = result;
    return rv;
}

NS_IMETHODIMP
nsMsgCompose::BodyConvertible(int32_t *_retval)
{
    NS_ENSURE_ARG_POINTER(_retval);
    NS_ENSURE_STATE(m_editor);

    nsCOMPtr<nsIDOMDocument> rootDocument;
    nsresult rv = m_editor->GetDocument(getter_AddRefs(rootDocument));
    if (NS_FAILED(rv) || !rootDocument)
      return rv;

    // get the top level element, which contains <html>
    nsCOMPtr<nsIDOMElement> rootElement;
    rv = rootDocument->GetDocumentElement(getter_AddRefs(rootElement));
    if (NS_FAILED(rv) || !rootElement)
      return rv;

    return _NodeTreeConvertible(rootElement, _retval);
}

NS_IMETHODIMP
nsMsgCompose::GetIdentity(nsIMsgIdentity **aIdentity)
{
  NS_ENSURE_ARG_POINTER(aIdentity);
  NS_IF_ADDREF(*aIdentity = m_identity);
  return NS_OK;
}

/**
 * Position above the quote, that is either <blockquote> or
 * <div class="moz-cite-prefix"> or <div class="moz-forward-container">
 * in an inline-forwarded message.
 */
nsresult
nsMsgCompose::MoveToAboveQuote(void)
{
  nsCOMPtr<nsIDOMElement> rootElement;
  nsresult rv = m_editor->GetRootElement(getter_AddRefs(rootElement));
  if (NS_FAILED(rv) || !rootElement) {
    return rv;
  }

  nsCOMPtr<nsIDOMNode> node;
  nsAutoString attributeName;
  nsAutoString attributeValue;
  nsAutoString tagLocalName;
  attributeName.AssignLiteral("class");

  rv = rootElement->GetFirstChild(getter_AddRefs(node));
  while (NS_SUCCEEDED(rv) && node) {
    nsCOMPtr<nsIDOMElement> element = do_QueryInterface(node);
    if (element) {
      // First check for <blockquote>. This will most likely not trigger
      // since well-behaved quotes are preceded by a cite prefix.
      node->GetLocalName(tagLocalName);
      if (tagLocalName.EqualsLiteral("blockquote")) {
        break;
      }

      // Get the class value.
      element->GetAttribute(attributeName, attributeValue);

      // Now check for the cite prefix, so an element with
      // class="moz-cite-prefix".
      if (attributeValue.Find("moz-cite-prefix", true) != kNotFound) {
        break;
      }

      // Next check for forwarded content.
      // The forwarded part is inside an element with
      // class="moz-forward-container".
      if (attributeValue.Find("moz-forward-container", true) != kNotFound) {
        break;
      }
    }

    rv = node->GetNextSibling(getter_AddRefs(node));
    if (NS_FAILED(rv) || !node) {
      // No further siblings found, so we didn't find what we were looking for.
      rv = NS_OK;
      node = nullptr;
      break;
    }
  }

  // Now position. If no quote was found, we position to the very front.
  int32_t offset = 0;
  if (node) {
    rv = GetChildOffset(node, rootElement, offset);
    if (NS_FAILED(rv)) {
      return rv;
    }
  }
  nsCOMPtr<nsISelection> selection;
  m_editor->GetSelection(getter_AddRefs(selection));
  if (selection)
    rv = selection->Collapse(rootElement, offset);

  return rv;
}

/**
 * nsEditor::BeginningOfDocument() will position to the beginning of the document
 * before the first editable element. It will position into a container.
 * We need to be at the very front.
 */
nsresult
nsMsgCompose::MoveToBeginningOfDocument(void)
{
  nsCOMPtr<nsIDOMElement> rootElement;
  nsresult rv = m_editor->GetRootElement(getter_AddRefs(rootElement));
  if (NS_FAILED(rv) || !rootElement) {
    return rv;
  }

  nsCOMPtr<nsISelection> selection;
  m_editor->GetSelection(getter_AddRefs(selection));
  if (selection)
    rv = selection->Collapse(rootElement, 0);

  return rv;
}

/**
 * M-C's nsEditor::EndOfDocument() will position to the end of the document
 * but it will position into a container. We really need to position
 * after the last container so we don't accidentally position into a
 * <blockquote>. That's why we use our own function.
 */
nsresult
nsMsgCompose::MoveToEndOfDocument(void)
{
  int32_t offset;
  nsCOMPtr<nsIDOMElement> rootElement;
  nsCOMPtr<nsIDOMNode> lastNode;
  nsresult rv = m_editor->GetRootElement(getter_AddRefs(rootElement));
  if (NS_FAILED(rv) || !rootElement) {
    return rv;
  }

  rv = rootElement->GetLastChild(getter_AddRefs(lastNode));
  if (NS_FAILED(rv) || !lastNode) {
    return rv;
  }

  rv = GetChildOffset(lastNode, rootElement, offset);
  if (NS_FAILED(rv)) {
    return rv;
  }

  nsCOMPtr<nsISelection> selection;
  m_editor->GetSelection(getter_AddRefs(selection));
  if (selection)
    rv = selection->Collapse(rootElement, offset + 1);

  return rv;
}

NS_IMETHODIMP
nsMsgCompose::SetIdentity(nsIMsgIdentity *aIdentity)
{
  NS_ENSURE_ARG_POINTER(aIdentity);

  m_identity = aIdentity;

  nsresult rv;

  if (! m_editor)
    return NS_ERROR_FAILURE;

  nsCOMPtr<nsIDOMElement> rootElement;
  rv = m_editor->GetRootElement(getter_AddRefs(rootElement));
  if (NS_FAILED(rv) || !rootElement)
    return rv;

  //First look for the current signature, if we have one
  nsCOMPtr<nsIDOMNode> lastNode;
  nsCOMPtr<nsIDOMNode> node;
  nsCOMPtr<nsIDOMNode> tempNode;
  nsAutoString tagLocalName;

  rv = rootElement->GetLastChild(getter_AddRefs(lastNode));
  if (NS_SUCCEEDED(rv) && lastNode)
  {
    node = lastNode;
    // In html, the signature is inside an element with
    // class="moz-signature"
    bool signatureFound = false;
    nsAutoString attributeName;
    attributeName.AssignLiteral("class");

    do
    {
      nsCOMPtr<nsIDOMElement> element = do_QueryInterface(node);
      if (element)
      {
        nsAutoString attributeValue;

        rv = element->GetAttribute(attributeName, attributeValue);

        if (attributeValue.Find("moz-signature", true) != kNotFound) {
          signatureFound = true;
          break;
        }
      }
    } while (!signatureFound &&
             node &&
             NS_SUCCEEDED(node->GetPreviousSibling(getter_AddRefs(node))));

    if (signatureFound)
    {
      m_editor->BeginTransaction();
      node->GetPreviousSibling(getter_AddRefs(tempNode));
      rv = m_editor->DeleteNode(node);
      if (NS_FAILED(rv))
      {
        m_editor->EndTransaction();
        return rv;
      }

      // Also, remove the <br> right before the signature.
      if (tempNode)
      {
        tempNode->GetLocalName(tagLocalName);
        if (tagLocalName.EqualsLiteral("br"))
          m_editor->DeleteNode(tempNode);
      }
      m_editor->EndTransaction();
    }
  }

  if (!CheckIncludeSignaturePrefs(aIdentity))
    return NS_OK;

  // Then add the new one if needed
  nsAutoString aSignature;

  // No delimiter needed if not a compose window
  bool isQuoted;
  switch (mType)
  {
    case nsIMsgCompType::New :
    case nsIMsgCompType::NewsPost :
    case nsIMsgCompType::MailToUrl :
    case nsIMsgCompType::ForwardAsAttachment :
      isQuoted = false;
      break;
    default :
      isQuoted = true;
      break;
  }

  ProcessSignature(aIdentity, isQuoted, &aSignature);

  if (!aSignature.IsEmpty())
  {
    TranslateLineEnding(aSignature);

    m_editor->BeginTransaction();
    int32_t reply_on_top = 0;
    bool sig_bottom = true;
    aIdentity->GetReplyOnTop(&reply_on_top);
    aIdentity->GetSigBottom(&sig_bottom);
    bool sigOnTop = (reply_on_top == 1 && !sig_bottom);
    if (sigOnTop && isQuoted) {
      rv = MoveToAboveQuote();
    } else {
      // Note: New messages aren't quoted so we always move to the end.
      rv = MoveToEndOfDocument();
    }

    if (NS_SUCCEEDED(rv)) {
      if (m_composeHTML) {
        nsCOMPtr<nsIHTMLEditor> htmlEditor (do_QueryInterface(m_editor));
        rv = htmlEditor->InsertHTML(aSignature);
      } else {
        nsCOMPtr<nsIPlaintextEditor> textEditor (do_QueryInterface(m_editor));
        rv = textEditor->InsertLineBreak();
        InsertDivWrappedTextAtSelection(aSignature, NS_LITERAL_STRING("moz-signature"));
      }
    }
    m_editor->EndTransaction();
  }

  return rv;
}

NS_IMETHODIMP nsMsgCompose::CheckCharsetConversion(nsIMsgIdentity *identity, char **fallbackCharset, bool *_retval)
{
  NS_ENSURE_ARG_POINTER(identity);
  NS_ENSURE_ARG_POINTER(_retval);

  // Kept around for legacy reasons. This method is supposed to check that the
  // headers can be converted to the appropriate charset, but we don't support
  // encoding headers to non-UTF-8, so this is now moot.
  if (fallbackCharset)
    *fallbackCharset = nullptr;
  *_retval = true;
  return NS_OK;
}

NS_IMETHODIMP nsMsgCompose::GetDeliverMode(MSG_DeliverMode* aDeliverMode)
{
  NS_ENSURE_ARG_POINTER(aDeliverMode);
  *aDeliverMode = mDeliverMode;
  return NS_OK;
}

nsMsgMailList::nsMsgMailList(nsIAbDirectory* directory) :
  mDirectory(directory)
{
  mDirectory->GetDirName(mName);
  mDirectory->GetDescription(mDescription);

  if (mDescription.IsEmpty())
    mDescription = mName;

  mDirectory = directory;
}
