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diff --git a/vmime-master/src/vmime/mdn/MDNHelper.hpp b/vmime-master/src/vmime/mdn/MDNHelper.hpp
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+++ b/vmime-master/src/vmime/mdn/MDNHelper.hpp
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+//
+// VMime library (http://www.vmime.org)
+// Copyright (C) 2002 Vincent Richard <vincent@vmime.org>
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License as
+// published by the Free Software Foundation; either version 3 of
+// the License, or (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with this program; if not, write to the Free Software Foundation, Inc.,
+// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+//
+// Linking this library statically or dynamically with other modules is making
+// a combined work based on this library.  Thus, the terms and conditions of
+// the GNU General Public License cover the whole combination.
+//
+
+#ifndef VMIME_MDN_MDNHELPER_HPP_INCLUDED
+#define VMIME_MDN_MDNHELPER_HPP_INCLUDED
+
+
+#include "vmime/mdn/receivedMDNInfos.hpp"
+#include "vmime/mdn/sendableMDNInfos.hpp"
+
+#include "vmime/mailboxList.hpp"
+
+
+namespace vmime {
+namespace mdn {
+
+
+/** Helper for creating or extracting Message Disposition
+  * Notifications (MDN), as defined in RFC-3798.
+  */
+class VMIME_EXPORT MDNHelper {
+
+public:
+
+	/** Attach a MDN request to the specified message.
+	  *
+	  * @param msg message in which to add a MDN request
+	  * @param mailboxes list of mailboxes to which the MDN will be sent
+	  */
+	static void attachMDNRequest(const shared_ptr <message>& msg, const mailboxList& mailboxes);
+
+	/** Attach a MDN request to the specified message.
+	  *
+	  * @param msg message in which to add a MDN request
+	  * @param mbox mailbox to which the MDN will be sent
+	  */
+	static void attachMDNRequest(const shared_ptr <message>& msg, const mailbox& mbox);
+
+	/** Return a list of possible MDNs that can be generated
+	  * for the specified message.
+	  *
+	  * @param msg message for which to send a MDN
+	  * @return list of possible MDNs
+	  */
+	static const std::vector <sendableMDNInfos> getPossibleMDNs(const shared_ptr <const message>& msg);
+
+	/** Test whether the specified message is a MDN.
+	  *
+	  * @param msg message
+	  * @return true if the message is a MDN, false otherwise
+	  */
+	static bool isMDN(const shared_ptr <const message>& msg);
+
+	/** If the specified message is a MDN, return information
+	  * about it.
+	  *
+	  * @param msg message
+	  * @throw exceptions::invalid_argument if the message is not a MDN
+	  * @return information about the MDN
+	  */
+	static receivedMDNInfos getReceivedMDN(const shared_ptr <const message>& msg);
+
+	/** Check whether we need user confirmation for sending a MDN even
+	  * if he/she explicitely allowed automatic send of MDNs. This can
+	  * happen in some situations, described in RFC-3798.
+	  *
+	  * @param msg message for which to send a MDN
+	  * @return true if user confirmation should be asked, false otherwise
+	  */
+	static bool needConfirmation(const shared_ptr <const message>& msg);
+
+	/** Build a new MDN for the message. The resulting MDN can then be
+	  * sent over SMTP transport service.
+	  *
+	  * @param mdnInfos information about the MDN to construct
+	  * @param text human readable message. The purpose of this message is
+	  *             to provide an easily-understood description of the
+	  *             condition(s) that caused the report to be generated.
+	  * @param ch charset of the text
+	  * @param expeditor expeditor of the MDN
+	  * @param dispo disposition information
+	  * @param reportingUA name of reporting user-agent (optional)
+	  * @param reportingUAProducts list of products in the reporting user-agent (optional)
+	  * @param fields additional MDN fields, like "Error", "Warning" or "Failure" (optional)
+	  * @return a new message object containing the MDN
+	  */
+	static shared_ptr <message> buildMDN(
+		const sendableMDNInfos& mdnInfos,
+		const string& text,
+		const charset& ch,
+		const mailbox& expeditor,
+		const disposition& dispo,
+		const string& reportingUA = NULL_STRING,
+		const std::vector <string>& reportingUAProducts = std::vector <string>(),
+		const std::map <string, string>& fields = std::map <string, string>()
+	);
+
+private:
+
+	static shared_ptr <bodyPart> createFirstMDNPart(
+		const sendableMDNInfos& mdnInfos,
+		const string& text,
+		const charset& ch
+	);
+
+	static shared_ptr <bodyPart> createSecondMDNPart(
+		const sendableMDNInfos& mdnInfos,
+		const disposition& dispo,
+		const string& reportingUA,
+		const std::vector <string>& reportingUAProducts,
+		const std::map <string, string>& fields
+	);
+
+	static shared_ptr <bodyPart> createThirdMDNPart(const sendableMDNInfos& mdnInfos);
+};
+
+
+} // mdn
+} // vmime
+
+
+#endif // VMIME_MDN_MDNHELPER_HPP_INCLUDED