mapihelp.h
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	/* mapihelp.h - Helper functions for MAPI
	* Copyright (C) 2005, 2007, 2008 g10 Code GmbH
	*
	* This file is part of GpgOL.
	*
	* GpgOL is free software; you can redistribute it and/or
	* modify it under the terms of the GNU Lesser General Public
	* License as published by the Free Software Foundation; either
	* version 2.1 of the License, or (at your option) any later version.
	*
	* GpgOL 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 Lesser General Public License for more details.
	*
	* You should have received a copy of the GNU Lesser General Public License
	* along with this program; if not, see <http://www.gnu.org/licenses/>.
	*/

	#ifndef MAPIHELP_H
	#define MAPIHELP_H

	#ifdef __cplusplus
	extern "C" {
	#if 0
	}
	#endif
	#endif

	/* The list of message types we support in GpgOL. */
	typedef enum
	{
	MSGTYPE_UNKNOWN = 0,
	MSGTYPE_SMIME, /* Original SMIME class. */
	MSGTYPE_GPGOL,
	MSGTYPE_GPGOL_MULTIPART_SIGNED,
	MSGTYPE_GPGOL_MULTIPART_ENCRYPTED,
	MSGTYPE_GPGOL_OPAQUE_SIGNED,
	MSGTYPE_GPGOL_OPAQUE_ENCRYPTED,
	MSGTYPE_GPGOL_CLEAR_SIGNED,
	MSGTYPE_GPGOL_PGP_MESSAGE
	}
	msgtype_t;

	typedef enum
	{
	ATTACHTYPE_UNKNOWN = 0,
	ATTACHTYPE_MOSS = 1, /* The original MOSS message (ie. a
	S/MIME or PGP/MIME message. */
	ATTACHTYPE_FROMMOSS = 2, /* Attachment created from MOSS. */
	ATTACHTYPE_MOSSTEMPL = 3, /* Attachment has been created in the
	course of sending a message */
	ATTACHTYPE_PGPBODY = 4, /* Attachment contains the original
	PGP message body of PGP inline
	encrypted messages. */
	ATTACHTYPE_FROMMOSS_DEC = 5 /* A FROMMOSS attachment that has been
	temporarily decrypted and needs to be
	encrypted before it is written back
	into storage. */
	}
	attachtype_t;

	/* An object to collect information about one MAPI attachment. */
	struct mapi_attach_item_s
	{
	int end_of_table; /* True if this is the last plus one entry of
	the table. */
	void private_mapitable; / Only for use by mapi_release_attach_table. */

	int mapipos; /* The position which needs to be passed to
	MAPI to open the attachment. -1 means that
	there is no valid attachment. */

	int method; /* MAPI attachment method. */
	char filename; / Malloced filename of this attachment or NULL. */

	/* Malloced string with the MIME attrib or NULL. Parameters are
	stripped off thus a compare against "type/subtype" is
	sufficient. */
	char *content_type;

	/* If not NULL the parameters of the content_type. */
	const char *content_type_parms;

	/* The attachment type from Property GpgOL Attach Type. */
	attachtype_t attach_type;
	};
	typedef struct mapi_attach_item_s mapi_attach_item_t;

	/* The filename of the attachment we create as the result of sign or
	encrypt operations. Don't change this name as some tests rely on
	it. */
	#define MIMEATTACHFILENAME "gpgolXXX.dat"
	/* The name of the file we use to store the original body of PGP
	encrypted messages. Note that PGP/MIME message don't need that
	because Outlook carries them as 2 attachments. */
	#define PGPBODYFILENAME "gpgolPGP.dat"

	void log_mapi_property (LPMESSAGE message, ULONG prop, const char *propname);
	int get_gpgololdmsgclass_tag (LPMESSAGE message, ULONG *r_tag);
	int get_gpgolattachtype_tag (LPMESSAGE message, ULONG *r_tag);
	int get_gpgolsigstatus_tag (LPMESSAGE message, ULONG *r_tag);
	int get_gpgolprotectiv_tag (LPMESSAGE message, ULONG *r_tag);
	int get_gpgollastdecrypted_tag (LPMESSAGE message, ULONG *r_tag);
	int get_gpgolmimeinfo_tag (LPMESSAGE message, ULONG *r_tag);
	int get_gpgolmsgclass_tag (LPMESSAGE message, ULONG *r_tag);

	int mapi_do_save_changes (LPMESSAGE message, ULONG flags, int only_del_body,
	const char dbg_file, const char dbg_func);
	#define mapi_save_changes(a,b) \
	mapi_do_save_changes ((a),(b), 0, __FILE__, __func__)
	#define mapi_delete_body_props(a,b) \
	mapi_do_save_changes ((a),(b), 1, __FILE__, __func__)


	int mapi_set_header (LPMESSAGE msg, const char name, const char val);

	int mapi_change_message_class (LPMESSAGE message, int sync_override);
	char *mapi_get_message_class (LPMESSAGE message);
	char *mapi_get_old_message_class (LPMESSAGE message);
	char *mapi_get_sender (LPMESSAGE message);
	msgtype_t mapi_get_message_type (LPMESSAGE message);
	int mapi_to_mime (LPMESSAGE message, const char *filename);

	char mapi_get_binary_prop (LPMESSAGE message,ULONG proptype,size_t r_nbytes);
	int mapi_get_int_prop (LPMAPIPROP object, ULONG proptype, LONG *r_value);

	char *mapi_get_from_address (LPMESSAGE message);
	char *mapi_get_subject (LPMESSAGE message);

	LPSTREAM mapi_get_body_as_stream (LPMESSAGE message);
	char mapi_get_body (LPMESSAGE message, size_t r_nbytes);

	mapi_attach_item_t *mapi_create_attach_table (LPMESSAGE message, int fast);
	void mapi_release_attach_table (mapi_attach_item_t *table);
	LPSTREAM mapi_get_attach_as_stream (LPMESSAGE message,
	mapi_attach_item_t *item,
	LPATTACH *r_attach);
	char *mapi_get_attach (LPMESSAGE message, int unprotect,
	mapi_attach_item_t item, size_t r_nbytes);
	int mapi_mark_moss_attach (LPMESSAGE message, mapi_attach_item_t *item);
	int mapi_has_sig_status (LPMESSAGE msg);
	int mapi_test_sig_status (LPMESSAGE msg);
	char *mapi_get_sig_status (LPMESSAGE msg);

	int mapi_set_sig_status (LPMESSAGE message, const char *status_string);

	int mapi_set_gpgol_msg_class (LPMESSAGE message, const char *name);

	char *mapi_get_gpgol_charset (LPMESSAGE obj);
	int mapi_set_gpgol_charset (LPMESSAGE obj, const char *charset);

	char *mapi_get_gpgol_draft_info (LPMESSAGE msg);
	int mapi_set_gpgol_draft_info (LPMESSAGE message, const char *string);


	int mapi_set_attach_hidden (LPATTACH attach);
	int mapi_test_attach_hidden (LPATTACH attach);

	char *mapi_get_mime_info (LPMESSAGE msg);

	char *mapi_get_message_content_type (LPMESSAGE message,
	char r_protocol, char r_smtype);

	int mapi_has_last_decrypted (LPMESSAGE message);
	int mapi_test_last_decrypted (LPMESSAGE message);
	int mapi_get_gpgol_body_attachment (LPMESSAGE message,
	char *r_body, size_t r_nbytes,
	int r_ishtml, int r_protected);

	int mapi_delete_gpgol_body_attachment (LPMESSAGE message);

	int mapi_attachment_to_body (LPMESSAGE message, mapi_attach_item_t *item);

	attachtype_t get_gpgolattachtype (LPATTACH obj, ULONG tag);

	int get_gpgol_draft_info_flags (LPMESSAGE message);

	int set_gpgol_draft_info_flags (LPMESSAGE message, int flags);

	/* Mark crypto attachments as hidden. And mark the moss
	attachment for later use. Returns the attachments position
	(1 is the first attachment) or 0 in case no attachment was found. */
	int mapi_mark_or_create_moss_attach (LPMESSAGE message, msgtype_t msgtype);

	/* Copy the MAPI body to a PGPBODY type attachment. */
	int mapi_body_to_attachment (LPMESSAGE message);
	#ifdef __cplusplus
	}
	#endif
	#endif /MAPIHELP_H/

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