Add OMEMO fingerprint command

src/command/cmd_ac.c

@@ -579,6 +579,7 @@ cmd_ac_init(void)
     omemo_ac = autocomplete_new();
     autocomplete_add(omemo_ac, "gen");
     autocomplete_add(omemo_ac, "start");
+    autocomplete_add(omemo_ac, "fingerprint");
 
     connect_property_ac = autocomplete_new();
     autocomplete_add(connect_property_ac, "server");

src/command/cmd_defs.c

@@ -2334,19 +2334,22 @@ static struct cmd_t command_defs[] =
         parse_args, 1, 2, NULL,
         CMD_SUBFUNCS(
             { "gen", cmd_omemo_gen },
-            { "start", cmd_omemo_start })
+            { "start", cmd_omemo_start },
+            { "fingerprint", cmd_omemo_fingerprint })
         CMD_NOMAINFUNC
         CMD_TAGS(
             CMD_TAG_CHAT,
             CMD_TAG_UI)
         CMD_SYN(
             "/omemo gen",
-            "/omemo start [<contact>]")
+            "/omemo start [<contact>]",
+            "/omemo fingerprint")
         CMD_DESC(
             "Omemo commands to manage keys, and perform encryption during chat sessions.")
         CMD_ARGS(
             { "gen",               "Generate OMEMO crytographic materials for current account." },
-            { "start [<contact>]", "Start an OMEMO session with contact, or current recipient if omitted." })
+            { "start [<contact>]", "Start an OMEMO session with contact, or current recipient if omitted." },
+            { "fingerprint",       "Show current device fingerprint." })
         CMD_EXAMPLES(
             "/omemo gen",
             "/omemo start buddy@buddychat.org")

src/command/cmd_funcs.c

@@ -7988,3 +7988,31 @@ cmd_omemo_start(ProfWin *window, const char *const command, gchar **args)
     return TRUE;
 #endif
 }
+
+gboolean
+cmd_omemo_fingerprint(ProfWin *window, const char *const command, gchar **args)
+{
+#ifdef HAVE_OMEMO
+    if (connection_get_status() != JABBER_CONNECTED) {
+        cons_show("You must be connected with an account to load OMEMO information.");
+        return TRUE;
+    }
+
+    if (!omemo_loaded()) {
+        win_println(window, THEME_DEFAULT, '!', "You have not generated or loaded a cryptographic materials, use '/omemo gen'");
+        return TRUE;
+    }
+
+    char *fingerprint = omemo_own_fingerprint();
+    char *formated_fingerprint = omemo_format_fingerprint(fingerprint);
+    cons_show("%s", formated_fingerprint);
+
+    free(fingerprint);
+    free(formated_fingerprint);
+
+    return TRUE;
+#else
+    cons_show("This version of Profanity has not been built with OMEMO support enabled");
+    return TRUE;
+#endif
+}

src/command/cmd_funcs.h

@@ -216,5 +216,6 @@ gboolean cmd_form_field(ProfWin *window, char *tag, gchar **args);
 
 gboolean cmd_omemo_gen(ProfWin *window, const char *const command, gchar **args);
 gboolean cmd_omemo_start(ProfWin *window, const char *const command, gchar **args);
+gboolean cmd_omemo_fingerprint(ProfWin *window, const char *const command, gchar **args);
 
 #endif