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// p≡p Message API
// Copyleft (c) 2019, p≡p foundation
// this file is under GNU General Public License 3.0
// see LICENSE.txt
// written by Volker Birk
struct message {
typedef enum _PEP_text_format {
PEP_text_format_plain = 0,
PEP_text_format_other = 0xff
} PEP_text_format;
typedef enum _PEP_msg_direction {
PEP_dir_incoming = 0,
} PEP_msg_direction;
typedef enum _PEP_enc_format {
PEP_enc_none = 0, // message is not encrypted
PEP_enc_pieces, // inline PGP + PGP extensions
PEP_enc_S_MIME, // RFC5751
PEP_enc_PGP_MIME, // RFC3156
PEP_enc_PEP, // pEp encryption format
PEP_enc_PGP_MIME_Outlook1 // Message B0rken by Outlook type 1
} PEP_enc_format;
struct _message_ref_list;
typedef struct _message {
PEP_msg_direction dir;
char *id; // UTF-8 string of message ID
char *shortmsg; // UTF-8 string of short message
char *longmsg; // UTF-8 string of long message
// (plain)
char *longmsg_formatted; // UTF-8 string of long message
// (formatted)
bloblist_t *attachments; // blobs with attachements
char *rawmsg_ref; // reference to raw message data
size_t rawmsg_size; // size of raw message data
timestamp *sent; // when the message is sent
timestamp *recv; // when the message is received
pEp_identity *from; // whom the message is from
identity_list *to; // whom the message is to
pEp_identity *recv_by; // via which identity the message
// is received
identity_list *cc; // whom a CC is being sent
identity_list *bcc; // whom a BCC is being sent
identity_list *reply_to; // where a reply should go to
stringlist_t *in_reply_to; // list of UTF-8 strings with
// MessageIDs of refering messages
struct _message *refering_msg_ref; // reference to refering message
stringlist_t *references; // list of UTF-8 strings with references
struct _message_ref_list *refered_by; // list of references to messages being
// refered
stringlist_t *keywords; // list of UTF-8 strings with keywords
char *comments; // UTF-8 string with comments
stringpair_list_t *opt_fields; // optional fields
PEP_enc_format enc_format; // format of encrypted data
} message;