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/*
* omemo.h
* vim: expandtab:ts=4:sts=4:sw=4
*
* Copyright (C) 2019 Paul Fariello <paul@fariello.eu>
*
* This file is part of Profanity.
*
* Profanity 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.
*
* Profanity 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 Profanity. If not, see <https://www.gnu.org/licenses/>.
*
* In addition, as a special exception, the copyright holders give permission to
* link the code of portions of this program with the OpenSSL library under
* certain conditions as described in each individual source file, and
* distribute linked combinations including the two.
*
* You must obey the GNU General Public License in all respects for all of the
* code used other than OpenSSL. If you modify file(s) with this exception, you
* may extend this exception to your version of the file(s), but you are not
* obligated to do so. If you do not wish to do so, delete this exception
* statement from your version. If you delete this exception statement from all
* source files in the program, then also delete it here.
*
*/
#include <glib.h>
#include "ui/ui.h"
#include "config/account.h"
#define OMEMO_ERR_UNSUPPORTED_CRYPTO -10000
#define OMEMO_ERR_GCRYPT -20000
#define OMEMO_AESGCM_URL_SCHEME "aesgcm"
typedef enum {
PROF_OMEMOPOLICY_MANUAL,
PROF_OMEMOPOLICY_AUTOMATIC,
PROF_OMEMOPOLICY_ALWAYS
} prof_omemopolicy_t;
typedef struct omemo_context_t omemo_context;
typedef struct omemo_key
{
unsigned char* data;
size_t length;
gboolean prekey;
uint32_t device_id;
uint32_t id;
} omemo_key_t;
void omemo_init(void);
void omemo_close(void);
void omemo_on_connect(ProfAccount* account);
void omemo_on_disconnect(void);
void omemo_generate_crypto_materials(ProfAccount* account);
void omemo_key_free(omemo_key_t* key);
void omemo_publish_crypto_materials(void);
uint32_t omemo_device_id(void);
void omemo_identity_key(unsigned char** output, size_t* length);
void omemo_signed_prekey(unsigned char** output, size_t* length);
void omemo_signed_prekey_signature(unsigned char** output, size_t* length);
void omemo_prekeys(GList** prekeys, GList** ids, GList** lengths);
void omemo_set_device_list(const char* const jid, GList* device_list);
GKeyFile* omemo_identity_keyfile(void);
void omemo_identity_keyfile_save(void);
GKeyFile* omemo_trust_keyfile(void);
void omemo_trust_keyfile_save(void);
GKeyFile* omemo_sessions_keyfile(void);
void omemo_sessions_keyfile_save(void);
char* omemo_format_fingerprint(const char* const fingerprint);
char* omemo_own_fingerprint(gboolean formatted);
void omemo_trust(const char* const jid, const char* const fingerprint);
void omemo_untrust(const char* const jid, const char* const fingerprint);
GList* omemo_known_device_identities(const char* const jid);
gboolean omemo_is_trusted_identity(const char* const jid, const char* const fingerprint);
char* omemo_fingerprint_autocomplete(const char* const search_str, gboolean previous, void* context);
void omemo_fingerprint_autocomplete_reset(void);
gboolean omemo_automatic_start(const char* const recipient);
void omemo_start_sessions(void);
void omemo_start_session(const char* const barejid);
void omemo_start_muc_sessions(const char* const roomjid);
void omemo_start_device_session(const char* const jid, uint32_t device_id, GList* prekeys, uint32_t signed_prekey_id, const unsigned char* const signed_prekey, size_t signed_prekey_len, const unsigned char* const signature, size_t signature_len, const unsigned char* const identity_key, size_t identity_key_len);
gboolean omemo_loaded(void);
char * omemo_on_message_send(ProfWin *win, const char *const message, gboolean request_receipt, gboolean muc, const char *const replace_id);
char * omemo_on_message_recv(const char *const from, uint32_t sid, const unsigned char *const iv, size_t iv_len, GList *keys, const unsigned char *const payload, size_t payload_len, gboolean muc, gboolean *trusted);
char *omemo_encrypt_file(FILE *in, FILE *out, off_t file_size, int *gcry_res);
void omemo_free(void *a);
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