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Code

Handle SMP secret response

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This commit is contained in:
James Booth 2014-04-26 22:52:25 +01:00
parent 06d81ed9ce
commit aff9eee433
5 changed files with 30 additions and 10 deletions
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4
src/command/commands.c
View File

@ -2800,8 +2800,8 @@ cmd_otr(gchar **args, struct cmd_help_t help)
cons_show("Usage: %s", help.usage);
} else {
char *recipient = ui_current_recipient();
otr_smp_init_secret(recipient, secret);
ui_current_print_formatted_line('!', 0, "OTR secret entered", secret);
otr_smp_secret(recipient, secret);
ui_current_print_formatted_line('!', 0, "OTR secret entered");
}
}
return TRUE;

16
src/otr/otr.c
View File

@ -41,6 +41,7 @@ static OtrlUserState user_state;
static OtrlMessageAppOps ops;
static char *jid;
static gboolean data_loaded;
static GHashTable *smp_initiators;
// ops callbacks
static OtrlPolicy
@ -136,6 +137,8 @@ _otr_init(void)
otrlib_init_ops(&ops);
smp_initiators = g_hash_table_new_full(g_str_hash, g_str_equal, g_free, g_free);
data_loaded = FALSE;
}
@ -389,7 +392,7 @@ _otr_untrust(const char * const recipient)
}
static void
_otr_smp_init_secret(const char * const recipient, const char *secret)
_otr_smp_secret(const char * const recipient, const char *secret)
{
ConnContext *context = otrlib_context_find(user_state, recipient, jid);
@ -401,7 +404,12 @@ _otr_smp_init_secret(const char * const recipient, const char *secret)
return;
}
otrl_message_initiate_smp(user_state, &ops, NULL, context, (const unsigned char*)secret, strlen(secret));
// if recipient initiated SMP, send response, else initialise
if (g_hash_table_contains(smp_initiators, recipient)) {
otrl_message_respond_smp(user_state, &ops, NULL, context, (const unsigned char*)secret, strlen(secret));
} else {
otrl_message_initiate_smp(user_state, &ops, NULL, context, (const unsigned char*)secret, strlen(secret));
}
}
static void
@ -471,7 +479,7 @@ _otr_decrypt_message(const char * const from, const char * const message, gboole
}
// library version specific tlv handling
otrlib_handle_tlvs(user_state, &ops, context, tlvs);
otrlib_handle_tlvs(user_state, &ops, context, tlvs, smp_initiators);
return NULL;
@ -512,5 +520,5 @@ otr_init_module(void)
otr_encrypt_message = _otr_encrypt_message;
otr_decrypt_message = _otr_decrypt_message;
otr_free_message = _otr_free_message;
otr_smp_init_secret = _otr_smp_init_secret;
otr_smp_secret = _otr_smp_secret;
}

2
src/otr/otr.h
View File

@ -40,7 +40,7 @@ gboolean (*otr_is_trusted)(const char * const recipient);
void (*otr_trust)(const char * const recipient);
void (*otr_untrust)(const char * const recipient);
void (*otr_smp_init_secret)(const char * const recipient, const char *secret);
void (*otr_smp_secret)(const char * const recipient, const char *secret);
void (*otr_end_session)(const char * const recipient);

2
src/otr/otrlib.h
View File

@ -39,6 +39,6 @@ gcry_error_t otrlib_encrypt_message(OtrlUserState user_state, OtrlMessageAppOps
int otrlib_decrypt_message(OtrlUserState user_state, OtrlMessageAppOps *ops, char *jid, const char * const from,
const char * const message, char **decrypted, OtrlTLV **tlvs);
void otrlib_handle_tlvs(OtrlUserState user_state, OtrlMessageAppOps *ops, ConnContext *context, OtrlTLV *tlvs);
void otrlib_handle_tlvs(OtrlUserState user_state, OtrlMessageAppOps *ops, ConnContext *context, OtrlTLV *tlvs, GHashTable *smp_initiators);
#endif

16
src/otr/otrlibv3.c
View File

@ -108,7 +108,7 @@ otrlib_decrypt_message(OtrlUserState user_state, OtrlMessageAppOps *ops, char *j
}
void
otrlib_handle_tlvs(OtrlUserState user_state, OtrlMessageAppOps *ops, ConnContext *context, OtrlTLV *tlvs)
otrlib_handle_tlvs(OtrlUserState user_state, OtrlMessageAppOps *ops, ConnContext *context, OtrlTLV *tlvs, GHashTable *smp_initiators)
{
NextExpectedSMP nextMsg = context->smstate->nextExpected;
OtrlTLV *tlv = otrl_tlv_find(tlvs, OTRL_TLV_SMP1);
@ -116,8 +116,9 @@ otrlib_handle_tlvs(OtrlUserState user_state, OtrlMessageAppOps *ops, ConnContext
if (nextMsg != OTRL_SMP_EXPECT1) {
otrl_message_abort_smp(user_state, ops, NULL, context);
} else {
cons_debug("%s initiated SMP", context->username);
// [get secret from user and continue SMP];
cons_debug("%s initiated SMP with secret", context->username);
g_hash_table_insert(smp_initiators, strdup(context->username), strdup(context->username));
}
}
tlv = otrl_tlv_find(tlvs, OTRL_TLV_SMP2);
@ -138,6 +139,11 @@ otrlib_handle_tlvs(OtrlUserState user_state, OtrlMessageAppOps *ops, ConnContext
// We will not expect more messages, so prepare for next SMP
context->smstate->nextExpected = OTRL_SMP_EXPECT1;
// Report result to user
if ((context->active_fingerprint->trust != NULL) && (context->active_fingerprint->trust[0] != '\0')) {
cons_debug("SMP SUCCESSFUL");
} else {
cons_debug("SMP UNSUCCESSFUL");
}
}
}
tlv = otrl_tlv_find(tlvs, OTRL_TLV_SMP4);
@ -148,6 +154,11 @@ otrlib_handle_tlvs(OtrlUserState user_state, OtrlMessageAppOps *ops, ConnContext
// We will not expect more messages, so prepare for next SMP
context->smstate->nextExpected = OTRL_SMP_EXPECT1;
// Report result to user
if ((context->active_fingerprint->trust != NULL) && (context->active_fingerprint->trust[0] != '\0')) {
cons_debug("SMP SUCCESSFUL");
} else {
cons_debug("SMP UNSUCCESSFUL");
}
}
}
tlv = otrl_tlv_find(tlvs, OTRL_TLV_SMP_ABORT);
@ -155,5 +166,6 @@ otrlib_handle_tlvs(OtrlUserState user_state, OtrlMessageAppOps *ops, ConnContext
// The message we are waiting for will not arrive, so reset
// and prepare for the next SMP
context->smstate->nextExpected = OTRL_SMP_EXPECT1;
cons_debug("SMP ABORTED");
}
}