mirror of
https://github.com/profanity-im/profanity.git
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213 lines
6.7 KiB
C
213 lines
6.7 KiB
C
/*
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* otrlibv3.c
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*
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* Copyright (C) 2012 - 2014 James Booth <boothj5@gmail.com>
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*
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* This file is part of Profanity.
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*
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* Profanity is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Profanity is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Profanity. If not, see <http://www.gnu.org/licenses/>.
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*
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* In addition, as a special exception, the copyright holders give permission to
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* link the code of portions of this program with the OpenSSL library under
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* certain conditions as described in each individual source file, and
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* distribute linked combinations including the two.
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*
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* You must obey the GNU General Public License in all respects for all of the
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* code used other than OpenSSL. If you modify file(s) with this exception, you
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* may extend this exception to your version of the file(s), but you are not
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* obligated to do so. If you do not wish to do so, delete this exception
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* statement from your version. If you delete this exception statement from all
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* source files in the program, then also delete it here.
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*
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*/
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#include <libotr/proto.h>
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#include <libotr/privkey.h>
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#include <libotr/message.h>
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#include "ui/ui.h"
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#include "otr/otr.h"
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#include "otr/otrlib.h"
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OtrlPolicy
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otrlib_policy(void)
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{
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return OTRL_POLICY_ALLOW_V1 | OTRL_POLICY_ALLOW_V2 ;
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}
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void
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otrlib_init_timer(void)
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{
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}
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void
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otrlib_poll(void)
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{
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}
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char *
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otrlib_start_query(void)
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{
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return "?OTR?v2? This user has requested an Off-the-Record private conversation. However, you do not have a plugin to support that. See http://otr.cypherpunks.ca/ for more information.";
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}
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static int
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cb_display_otr_message(void *opdata, const char *accountname,
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const char *protocol, const char *username, const char *msg)
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{
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cons_show_error("%s", msg);
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return 0;
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}
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void
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otrlib_init_ops(OtrlMessageAppOps *ops)
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{
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ops->display_otr_message = cb_display_otr_message;
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}
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ConnContext *
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otrlib_context_find(OtrlUserState user_state, const char * const recipient, char *jid)
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{
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return otrl_context_find(user_state, recipient, jid, "xmpp", 0, NULL, NULL, NULL);
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}
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void
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otrlib_end_session(OtrlUserState user_state, const char * const recipient, char *jid, OtrlMessageAppOps *ops)
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{
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ConnContext *context = otrl_context_find(user_state, recipient, jid, "xmpp",
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0, NULL, NULL, NULL);
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if (context != NULL) {
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otrl_message_disconnect(user_state, ops, NULL, jid, "xmpp", recipient);
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}
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}
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gcry_error_t
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otrlib_encrypt_message(OtrlUserState user_state, OtrlMessageAppOps *ops, char *jid, const char * const to,
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const char * const message, char **newmessage)
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{
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gcry_error_t err;
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err = otrl_message_sending(
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user_state,
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ops,
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NULL,
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jid,
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"xmpp",
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to,
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message,
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0,
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newmessage,
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NULL,
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NULL);
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return err;
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}
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int
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otrlib_decrypt_message(OtrlUserState user_state, OtrlMessageAppOps *ops, char *jid, const char * const from,
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const char * const message, char **decrypted, OtrlTLV **tlvs)
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{
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return otrl_message_receiving(
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user_state,
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ops,
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NULL,
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jid,
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"xmpp",
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from,
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message,
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decrypted,
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tlvs,
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NULL,
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NULL);
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}
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void
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otrlib_handle_tlvs(OtrlUserState user_state, OtrlMessageAppOps *ops, ConnContext *context, OtrlTLV *tlvs, GHashTable *smp_initiators)
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{
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NextExpectedSMP nextMsg = context->smstate->nextExpected;
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OtrlTLV *tlv = otrl_tlv_find(tlvs, OTRL_TLV_SMP1);
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if (tlv) {
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if (nextMsg != OTRL_SMP_EXPECT1) {
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otrl_message_abort_smp(user_state, ops, NULL, context);
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} else {
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ui_smp_recipient_initiated(context->username);
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g_hash_table_insert(smp_initiators, strdup(context->username), strdup(context->username));
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}
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}
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tlv = otrl_tlv_find(tlvs, OTRL_TLV_SMP1Q);
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if (tlv) {
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if (nextMsg != OTRL_SMP_EXPECT1) {
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otrl_message_abort_smp(user_state, ops, NULL, context);
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} else {
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char *question = (char *)tlv->data;
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char *eoq = memchr(question, '\0', tlv->len);
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if (eoq) {
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ui_smp_recipient_initiated_q(context->username, question);
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}
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}
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}
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tlv = otrl_tlv_find(tlvs, OTRL_TLV_SMP2);
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if (tlv) {
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if (nextMsg != OTRL_SMP_EXPECT2) {
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otrl_message_abort_smp(user_state, ops, NULL, context);
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} else {
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context->smstate->nextExpected = OTRL_SMP_EXPECT4;
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}
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}
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tlv = otrl_tlv_find(tlvs, OTRL_TLV_SMP3);
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if (tlv) {
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if (nextMsg != OTRL_SMP_EXPECT3) {
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otrl_message_abort_smp(user_state, ops, NULL, context);
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} else {
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context->smstate->nextExpected = OTRL_SMP_EXPECT1;
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if (context->smstate->received_question == 0) {
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if ((context->active_fingerprint->trust != NULL) && (context->active_fingerprint->trust[0] != '\0')) {
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ui_smp_successful(context->username);
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ui_trust(context->username);
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} else {
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ui_smp_unsuccessful_sender(context->username);
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ui_untrust(context->username);
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}
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} else {
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if (context->smstate->sm_prog_state == OTRL_SMP_PROG_SUCCEEDED) {
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ui_smp_answer_success(context->username);
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} else {
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ui_smp_answer_failure(context->username);
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}
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}
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}
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}
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tlv = otrl_tlv_find(tlvs, OTRL_TLV_SMP4);
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if (tlv) {
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if (nextMsg != OTRL_SMP_EXPECT4) {
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otrl_message_abort_smp(user_state, ops, NULL, context);
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} else {
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context->smstate->nextExpected = OTRL_SMP_EXPECT1;
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if ((context->active_fingerprint->trust != NULL) && (context->active_fingerprint->trust[0] != '\0')) {
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ui_smp_successful(context->username);
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ui_trust(context->username);
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} else {
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ui_smp_unsuccessful_receiver(context->username);
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ui_untrust(context->username);
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}
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}
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}
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tlv = otrl_tlv_find(tlvs, OTRL_TLV_SMP_ABORT);
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if (tlv) {
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context->smstate->nextExpected = OTRL_SMP_EXPECT1;
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ui_smp_aborted(context->username);
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ui_untrust(context->username);
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otr_untrust(context->username);
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}
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}
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