key.c: Make the `KeyFile' key-lookup methods behave consistently.

[catacomb-python] / key.c

diff --git a/key.c b/key.c
index 898da55..2ec8a61 100644 (file)
--- a/key.c
+++ b/key.c
@@ -1718,40 +1718,58 @@ end:
   return (0);
 }
 
-static PyObject *kfmeth_byid(PyObject *me, PyObject *arg)
+static PyObject *kfmeth_byid(PyObject *me, PyObject *arg, PyObject *kw)
 {
   uint32 id;
   key *k;
+  PyObject *failp = Py_True;
   PyObject *rc = 0;
+  static const char *const kwlist[] = { "id", "fail", 0 };
 
-  if (!PyArg_ParseTuple(arg, "O&:byid", convu32, &id)) goto end;
-  if ((k = key_byid(KEYFILE_KF(me), id)) == 0) KEYERR(KERR_NOTFOUND);
-  rc = key_pywrap(me, k);
+  if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|O:byid", KWLIST,
+                                  convu32, &id, &failp))
+    goto end;
+  if ((k = key_byid(KEYFILE_KF(me), id)) != 0) rc = key_pywrap(me, k);
+  else if (PyObject_IsTrue(failp)) KEYERR(KERR_NOTFOUND);
+  else RETURN_NONE;
 end:
   return (rc);
 }
 
-static PyObject *kfmeth_bytype(PyObject *me, PyObject *arg)
+static PyObject *kfmeth_bytype(PyObject *me, PyObject *arg, PyObject *kw)
 {
   char *type;
   key *k;
+  PyObject *failp = Py_True;
   PyObject *rc = 0;
+  static const char *const kwlist[] = { "type", "fail", 0 };
 
-  if (!PyArg_ParseTuple(arg, "s:bytype", &type)) goto end;
-  if ((k = key_bytype(KEYFILE_KF(me), type)) == 0) RETURN_NONE;
-  rc = key_pywrap(me, k);
+  if (!PyArg_ParseTupleAndKeywords(arg, kw, "s|O:bytype", KWLIST,
+                                  &type, &failp))
+    goto end;
+  if ((k = key_bytype(KEYFILE_KF(me), type)) != 0) rc = key_pywrap(me, k);
+  else if (PyObject_IsTrue(failp)) KEYERR(KERR_NOTFOUND);
+  else RETURN_NONE;
 end:
   return (rc);
 }
 
-static PyObject *kfmeth_bytag(PyObject *me, PyObject *arg)
+static PyObject *kfmeth_bytag(PyObject *me, PyObject *arg, PyObject *kw)
 {
   PyObject *tagobj;
   key *k;
+  PyObject *failp = Py_True;
+  PyObject *rc = 0;
+  static const char *const kwlist[] = { "type", "fail", 0 };
 
-  if (!PyArg_ParseTuple(arg, "O:bytag", &tagobj)) return (0);
-  if ((k = bytag(me, tagobj)) == 0) RETURN_NONE;
-  else return (key_pywrap(me, k));
+  if (!PyArg_ParseTupleAndKeywords(arg, kw, "O|O:bytag", KWLIST,
+                                  &tagobj, &failp))
+    goto end;
+  if ((k = bytag(me, tagobj)) != 0) rc = key_pywrap(me, k);
+  else if (PyObject_IsTrue(failp)) KEYERR(KERR_NOTFOUND);
+  else RETURN_NONE;
+end:
+  return (rc);
 }
 
 static PyObject *kfmeth_newkey(PyObject *me, PyObject *arg, PyObject *kw)
@@ -1820,9 +1838,9 @@ static const PyMethodDef keyfile_pymethods[] = {
                                           "[report = <built-in-reporter>])")
   KWMETH(newkey,       "KF.newkey(ID, TYPE, [exptime = KEXP_FOREVER]) "
                                                                    "-> KEY")
-  METH (byid,          "KF.byid(KEYID) -> KEY|None")
-  METH (bytype,        "KF.bytype(TYPE) -> KEY|None")
-  METH (bytag,         "KF.bytag(TAG) -> KEY|None")
+  KWMETH(byid,         "KF.byid(KEYID, [fail = True]) -> KEY|None")
+  KWMETH(bytype,       "KF.bytype(TYPE, [fail = True]) -> KEY|None")
+  KWMETH(bytag,                "KF.bytag(TAG, [fail = True]) -> KEY|None")
   KWMETH(qtag,         "KF.qtag(TAG, [new = KD]) -> FULLTAG, KEY, OLDKD")
   GMAP_ROMETHODS
 #undef METHNAME