Add plugin prof_get_nick_from_roster function

src/plugins/python_api.c

@@ -46,6 +46,7 @@
 #include "plugins/python_plugins.h"
 #include "plugins/callbacks.h"
 #include "plugins/autocompleters.h"
+#include "xmpp/roster_list.h"
 
 static char* _python_plugin_name(void);
 
@@ -440,6 +441,27 @@ python_api_get_current_nick(PyObject* self, PyObject* args)
     }
 }
 
+static PyObject*
+python_api_get_nick_from_roster(PyObject* self, PyObject* args)
+{
+    PyObject* barejid = NULL;
+    if (!PyArg_ParseTuple(args, "O", &barejid)) {
+        Py_RETURN_NONE;
+    }
+
+    char* barejid_str = python_str_or_unicode_to_string(barejid);
+
+    allow_python_threads();
+    char* nick = roster_get_display_name(barejid_str);
+    free(barejid_str);
+    disable_python_threads();
+    if (nick) {
+        return Py_BuildValue("s", nick);
+    } else {
+        Py_RETURN_NONE;
+    }
+}
+
 static PyObject*
 python_api_get_current_occupants(PyObject* self, PyObject* args)
 {
@@ -1487,6 +1509,7 @@ static PyMethodDef apiMethods[] = {
     { "get_current_recipient", python_api_get_current_recipient, METH_VARARGS, "Return the jid of the recipient of the current window." },
     { "get_current_muc", python_api_get_current_muc, METH_VARARGS, "Return the jid of the room of the current window." },
     { "get_current_nick", python_api_get_current_nick, METH_VARARGS, "Return nickname in current room." },
+    { "get_nick_from_roster", python_api_get_nick_from_roster, METH_VARARGS, "Return nickname in roster of barejid." },
     { "get_current_occupants", python_api_get_current_occupants, METH_VARARGS, "Return list of occupants in current room." },
     { "current_win_is_console", python_api_current_win_is_console, METH_VARARGS, "Returns whether the current window is the console." },
     { "get_room_nick", python_api_get_room_nick, METH_VARARGS, "Return the nickname used in the specified room, or None if not in the room." },