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deltachat-core/src/dc_mimeparser.h

123 lines
5.2 KiB
C

/*******************************************************************************
*
* Delta Chat Core
* Copyright (C) 2017 Björn Petersen
* Contact: r10s@b44t.com, http://b44t.com
*
* 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, see http://www.gnu.org/licenses/ .
*
******************************************************************************/
/* Parse MIME body; this is the text part of an IMF, see https://tools.ietf.org/html/rfc5322
dc_mimeparser_t has no deep dependencies to mrmailbox_t or to the database
(mrmailbox_t is used for logging only). */
#ifndef __MRMIMEPARSER_H__
#define __MRMIMEPARSER_H__
#ifdef __cplusplus
extern "C" {
#endif
#include "dc_hash.h"
#include "dc_param.h"
typedef struct mrmailbox_e2ee_helper_t mrmailbox_e2ee_helper_t;
typedef struct mrmimepart_t
{
/** @privatesection */
int m_type; /*one of MR_MSG_* */
int m_is_meta; /*meta parts contain eg. profile or group images and are only present if there is at least one "normal" part*/
int m_int_mimetype;
char* m_msg;
char* m_msg_raw;
int m_bytes;
mrparam_t* m_param;
} mrmimepart_t;
typedef struct dc_mimeparser_t
{
/** @privatesection */
/* data, read-only, must not be free()'d (it is free()'d when the dc_mimeparser_t object gets destructed) */
carray* m_parts; /* array of mrmimepart_t objects */
struct mailmime* m_mimeroot;
dc_hash_t m_header; /* memoryhole-compliant header */
struct mailimf_fields* m_header_root; /* must NOT be freed, do not use for query, merged into m_header, a pointer somewhere to the MIME data*/
struct mailimf_fields* m_header_protected; /* MUST be freed, do not use for query, merged into m_header */
char* m_subject;
int m_is_send_by_messenger;
int m_decrypting_failed; /* set, if there are multipart/encrypted parts left after decryption */
mrmailbox_e2ee_helper_t* m_e2ee_helper;
const char* m_blobdir;
int m_is_forwarded;
mrmailbox_t* m_mailbox;
carray* m_reports; /* array of mailmime objects */
int m_is_system_message;
} dc_mimeparser_t;
dc_mimeparser_t* dc_mimeparser_new (const char* blobdir, mrmailbox_t*);
void dc_mimeparser_unref (dc_mimeparser_t*);
void dc_mimeparser_empty (dc_mimeparser_t*);
void dc_mimeparser_parse (dc_mimeparser_t*, const char* body_not_terminated, size_t body_bytes);
/* the following functions can be used only after a call to dc_mimeparser_parse() */
struct mailimf_field* dc_mimeparser_lookup_field (dc_mimeparser_t*, const char* field_name);
struct mailimf_optional_field* dc_mimeparser_lookup_optional_field (dc_mimeparser_t*, const char* field_name);
struct mailimf_optional_field* dc_mimeparser_lookup_optional_field2 (dc_mimeparser_t*, const char* field_name, const char* or_field_name);
mrmimepart_t* dc_mimeparser_get_last_nonmeta (dc_mimeparser_t*);
#define dc_mimeparser_has_nonmeta(a) (dc_mimeparser_get_last_nonmeta((a))!=NULL)
int dc_mimeparser_is_mailinglist_message (dc_mimeparser_t*);
int dc_mimeparser_sender_equals_recipient(dc_mimeparser_t*);
/* low-level-tools for working with mailmime structures directly */
#ifdef MR_USE_MIME_DEBUG
void mailmime_print (struct mailmime*);
#endif
struct mailmime_parameter* mailmime_find_ct_parameter (struct mailmime*, const char* name);
int mailmime_transfer_decode (struct mailmime*, const char** ret_decoded_data, size_t* ret_decoded_data_bytes, char** ret_to_mmap_string_unref);
struct mailimf_fields* mailmime_find_mailimf_fields (struct mailmime*); /*the result is a pointer to mime, must not be freed*/
char* mailimf_find_first_addr (const struct mailimf_mailbox_list*); /*the result must be freed*/
struct mailimf_field* mailimf_find_field (struct mailimf_fields*, int wanted_fld_type); /*the result is a pointer to mime, must not be freed*/
struct mailimf_optional_field* mailimf_find_optional_field (struct mailimf_fields*, const char* wanted_fld_name);
dc_hash_t* mailimf_get_recipients (struct mailimf_fields*);
#ifdef __cplusplus
} /* /extern "C" */
#endif
#endif /* __MRMIMEPARSER_H__ */