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Set an exception in case of PQescapeIdentifier error

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Ifdeffed surface reduced.
This commit is contained in:
Daniele Varrazzo 2014-06-05 13:17:51 +02:00 committed by mrmilosz
parent 4003b7c977
commit 54e5349f53
1 changed files with 30 additions and 13 deletions
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43
psycopg/cursor_type.c
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@ -1015,6 +1015,34 @@ exit:
#define psyco_curs_callproc_doc \ #define psyco_curs_callproc_doc \
"callproc(procname, parameters=None) -- Execute stored procedure." "callproc(procname, parameters=None) -- Execute stored procedure."
/* Call PQescapeIdentifier.
*
* In case of error set a Python exception.
*
* TODO: this function can become more generic and go into utils
*/
static char *
_escape_identifier(PGconn *pgconn, const char *str, size_t length)
{
char *rv = NULL;
#if PG_VERSION_NUM >= 90000
rv = PQescapeIdentifier(pgconn, str, length);
if (!rv) {
char *msg;
if (!(msg = PQerrorMessage(pgconn))) {
msg = "no message provided";
}
PyErr_Format(InterfaceError, "failed to escape identifier: %s", msg);
}
#else
PyErr_Format(PyExc_NotImplementedError,
"named parameters require psycopg2 compiled against libpq 9.0+");
#endif
return rv;
}
static PyObject * static PyObject *
psyco_curs_callproc(cursorObject *self, PyObject *args) psyco_curs_callproc(cursorObject *self, PyObject *args)
{ {
@ -1022,17 +1050,15 @@ psyco_curs_callproc(cursorObject *self, PyObject *args)
char *sql = NULL; char *sql = NULL;
Py_ssize_t procname_len, i, nparameters = 0, sl = 0; Py_ssize_t procname_len, i, nparameters = 0, sl = 0;
PyObject *parameters = Py_None; PyObject *parameters = Py_None;
PyObject *pvals = NULL;
PyObject *operation = NULL; PyObject *operation = NULL;
PyObject *res = NULL; PyObject *res = NULL;
int using_dict; int using_dict;
#if PG_VERSION_HEX >= 0x090000
PyObject *pname = NULL; PyObject *pname = NULL;
PyObject *pnames = NULL; PyObject *pnames = NULL;
PyObject *pvals = NULL;
char *cpname = NULL; char *cpname = NULL;
char **scpnames = NULL; char **scpnames = NULL;
#endif
if (!PyArg_ParseTuple(args, "s#|O", &procname, &procname_len, if (!PyArg_ParseTuple(args, "s#|O", &procname, &procname_len,
&parameters)) { &parameters)) {
@ -1057,7 +1083,6 @@ psyco_curs_callproc(cursorObject *self, PyObject *args)
/* a Dict is complicated; the parameter names go into the query */ /* a Dict is complicated; the parameter names go into the query */
if (using_dict) { if (using_dict) {
#if PG_VERSION_NUM >= 90000
if (!(pnames = PyDict_Keys(parameters))) { goto exit; } if (!(pnames = PyDict_Keys(parameters))) { goto exit; }
if (!(pvals = PyDict_Values(parameters))) { goto exit; } if (!(pvals = PyDict_Values(parameters))) { goto exit; }
@ -1081,7 +1106,7 @@ psyco_curs_callproc(cursorObject *self, PyObject *args)
if (!(pname = psycopg_ensure_bytes(pname))) { goto exit; } if (!(pname = psycopg_ensure_bytes(pname))) { goto exit; }
if (!(cpname = Bytes_AsString(pname))) { goto exit; } if (!(cpname = Bytes_AsString(pname))) { goto exit; }
if (!(scpnames[i] = PQescapeIdentifier( if (!(scpnames[i] = _escape_identifier(
self->conn->pgconn, cpname, strlen(cpname)))) { self->conn->pgconn, cpname, strlen(cpname)))) {
goto exit; goto exit;
} }
@ -1103,12 +1128,6 @@ psyco_curs_callproc(cursorObject *self, PyObject *args)
} }
sql[sl-2] = ')'; sql[sl-2] = ')';
sql[sl-1] = '\0'; sql[sl-1] = '\0';
#else
PyErr_SetString(PyExc_NotImplementedError,
"named parameters require psycopg2 compiled against libpq 9.0+");
goto exit;
#endif
} }
/* a list (or None, or empty data structure) is a little bit simpler */ /* a list (or None, or empty data structure) is a little bit simpler */
@ -1145,7 +1164,6 @@ psyco_curs_callproc(cursorObject *self, PyObject *args)
} }
exit: exit:
#if PG_VERSION_HEX >= 0x090000
if (scpnames != NULL) { if (scpnames != NULL) {
for (i = 0; i < nparameters; i++) { for (i = 0; i < nparameters; i++) {
if (scpnames[i] != NULL) { if (scpnames[i] != NULL) {
@ -1156,7 +1174,6 @@ exit:
PyMem_Del(scpnames); PyMem_Del(scpnames);
Py_XDECREF(pname); Py_XDECREF(pname);
Py_XDECREF(pnames); Py_XDECREF(pnames);
#endif
Py_XDECREF(operation); Py_XDECREF(operation);
Py_XDECREF(pvals); Py_XDECREF(pvals);
PyMem_Free((void*)sql); PyMem_Free((void*)sql);