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-rw-r--r--src/otr/otr.c36
-rw-r--r--src/otr/otr.h2
-rw-r--r--src/otr/otrlibv3.c30
3 files changed, 60 insertions, 8 deletions
diff --git a/src/otr/otr.c b/src/otr/otr.c
index 2ad8e752..043dc30f 100644
--- a/src/otr/otr.c
+++ b/src/otr/otr.c
@@ -451,6 +451,40 @@ _otr_smp_secret(const char * const recipient, const char *secret)
 }
 
 static void
+_otr_smp_question(const char * const recipient, const char *question, const char *answer)
+{
+    ConnContext *context = otrlib_context_find(user_state, recipient, jid);
+
+    if (context == NULL) {
+        return;
+    }
+
+    if (context->msgstate != OTRL_MSGSTATE_ENCRYPTED) {
+        return;
+    }
+
+    otrl_message_initiate_smp_q(user_state, &ops, NULL, context, question, (const unsigned char*)answer, strlen(answer));
+    ui_otr_authetication_waiting(recipient);
+}
+
+static void
+_otr_smp_answer(const char * const recipient, const char *answer)
+{
+    ConnContext *context = otrlib_context_find(user_state, recipient, jid);
+
+    if (context == NULL) {
+        return;
+    }
+
+    if (context->msgstate != OTRL_MSGSTATE_ENCRYPTED) {
+        return;
+    }
+
+    // if recipient initiated SMP, send response, else initialise
+    otrl_message_respond_smp(user_state, &ops, NULL, context, (const unsigned char*)answer, strlen(answer));
+}
+
+static void
 _otr_end_session(const char * const recipient)
 {
     otrlib_end_session(user_state, recipient, jid, &ops);
@@ -560,4 +594,6 @@ otr_init_module(void)
     otr_decrypt_message = _otr_decrypt_message;
     otr_free_message = _otr_free_message;
     otr_smp_secret = _otr_smp_secret;
+    otr_smp_question = _otr_smp_question;
+    otr_smp_answer = _otr_smp_answer;
 }
diff --git a/src/otr/otr.h b/src/otr/otr.h
index f2f20d17..87b34b45 100644
--- a/src/otr/otr.h
+++ b/src/otr/otr.h
@@ -49,6 +49,8 @@ void (*otr_trust)(const char * const recipient);
 void (*otr_untrust)(const char * const recipient);
 
 void (*otr_smp_secret)(const char * const recipient, const char *secret);
+void (*otr_smp_question)(const char * const recipient, const char *question, const char *answer);
+void (*otr_smp_answer)(const char * const recipient, const char *answer);
 
 void (*otr_end_session)(const char * const recipient);
 
diff --git a/src/otr/otrlibv3.c b/src/otr/otrlibv3.c
index 7ec8a492..92ca3602 100644
--- a/src/otr/otrlibv3.c
+++ b/src/otr/otrlibv3.c
@@ -132,6 +132,18 @@ otrlib_handle_tlvs(OtrlUserState user_state, OtrlMessageAppOps *ops, ConnContext
             g_hash_table_insert(smp_initiators, strdup(context->username), strdup(context->username));
         }
     }
+    tlv = otrl_tlv_find(tlvs, OTRL_TLV_SMP1Q);
+    if (tlv) {
+        if (nextMsg != OTRL_SMP_EXPECT1) {
+            otrl_message_abort_smp(user_state, ops, NULL, context);
+        } else {
+            char *question = (char *)tlv->data;
+            char *eoq = memchr(question, '\0', tlv->len);
+            if (eoq) {
+                ui_smp_recipient_initiated_q(context->username, question);
+            }
+        }
+    }
     tlv = otrl_tlv_find(tlvs, OTRL_TLV_SMP2);
     if (tlv) {
         if (nextMsg != OTRL_SMP_EXPECT2) {
@@ -146,14 +158,16 @@ otrlib_handle_tlvs(OtrlUserState user_state, OtrlMessageAppOps *ops, ConnContext
             otrl_message_abort_smp(user_state, ops, NULL, context);
         } else {
             context->smstate->nextExpected = OTRL_SMP_EXPECT1;
-            if ((context->active_fingerprint->trust != NULL) && (context->active_fingerprint->trust[0] != '\0')) {
-                ui_smp_successful(context->username);
-                ui_trust(context->username);
-                otr_trust(context->username);
-            } else {
-                ui_smp_unsuccessful_sender(context->username);
-                ui_untrust(context->username);
-                otr_untrust(context->username);
+            if (context->smstate->received_question == 0) {
+                if ((context->active_fingerprint->trust != NULL) && (context->active_fingerprint->trust[0] != '\0')) {
+                    ui_smp_successful(context->username);
+                    ui_trust(context->username);
+                    otr_trust(context->username);
+                } else {
+                    ui_smp_unsuccessful_sender(context->username);
+                    ui_untrust(context->username);
+                    otr_untrust(context->username);
+                }
             }
         }
     }