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diff --git a/mailnews/import/applemail/src/nsEmlxHelperUtils.h b/mailnews/import/applemail/src/nsEmlxHelperUtils.h
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+/* -*- 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/. */
+
+#ifndef nsEmlxHelperUtils_h___
+#define nsEmlxHelperUtils_h___
+
+#include "nscore.h"
+#include "nsStringGlue.h"
+
+class nsIOutputStream;
+class nsIFile;
+
+class nsEmlxHelperUtils {
+ /* All emlx messages have a "flags" number in the metadata.
+ These are the masks to decode that, found via http://jwz.livejournal.com/505711.html */
+ enum EmlxMetadataMask {
+ kRead = 1 << 0, // read
+ // 1 << 1, // deleted
+ kAnswered = 1 << 2, // answered
+ // 1 << 3, // encrypted
+ kFlagged = 1 << 4, // flagged
+ // 1 << 5, // recent
+ // 1 << 6, // draft
+ // 1 << 7, // initial (no longer used)
+ kForwarded = 1 << 8, // forwarded
+ // 1 << 9, // redirected
+ // 3F << 10, // attachment count (6 bits)
+ // 7F << 16, // priority level (7 bits)
+ // 1 << 23, // signed
+ // 1 << 24, // is junk
+ // 1 << 25, // is not junk
+ // 1 << 26, // font size delta 7 (3 bits)
+ // 1 << 29, // junk mail level recorded
+ // 1 << 30, // highlight text in toc
+ // 1 << 31 // (unused)
+ };
+
+ // This method will scan the raw EMLX message buffer for "dangerous" so-called "From-lines" that we need to escape.
+ // If it needs to modify any lines, it will return a non-NULL aOutBuffer. If aOutBuffer is NULL, no modification needed
+ // to be made.
+ static nsresult ConvertToMboxRD(const char *aMessageBufferStart, const char *aMessageBufferEnd, nsCString &aOutBuffer);
+
+ // returns an int representing the X-Mozilla-Status flags set (e.g. "read", "flagged") converted from EMLX flags.
+ static nsresult ConvertToMozillaStatusFlags(const char *aXMLBufferStart, const char *aXMLBufferEnd, uint32_t *aMozillaStatusFlags);
+
+ public:
+
+ // add an .emlx message to the mbox output
+ static nsresult AddEmlxMessageToStream(nsIFile *aEmlxFile, nsIOutputStream *aOutoutStream);
+
+};
+
+#endif // nsEmlxHelperUtils_h___