static int
handle_append_flags(pycbc_Bucket *self, PyObject **flagsobj)
{
unsigned long val = 0;
if (*flagsobj == NULL || *flagsobj == Py_None) {
*flagsobj = pycbc_helpers.fmt_utf8_flags;
return 0;
}
if (self->tc) {
return 0; /* let the transcoder handle it */
}
val = pycbc_IntAsUL(*flagsobj);
if (val == (unsigned long)-1) {
PYCBC_EXC_WRAP_OBJ(PYCBC_EXC_ARGUMENTS, 0, "invalid flags", *flagsobj);
return -1;
}
if ((val & PYCBC_FMT_BYTES) == PYCBC_FMT_BYTES) {
return 0;
} else if ((val & PYCBC_FMT_UTF8) == PYCBC_FMT_UTF8) {
return 0;
}
PYCBC_EXC_WRAP_OBJ(PYCBC_EXC_ARGUMENTS, 0, "Only FMT_BYTES and FMT_UTF8 are supported for append/prepend", *flagsobj);
return -1;
}
static int
do_call_tc(pycbc_Bucket *conn,
PyObject *obj,
PyObject *flags,
PyObject **result,
int mode)
{
PyObject *meth = NULL;
PyObject *args = NULL;
PyObject *strlookup = NULL;
int ret = -1;
switch (mode) {
case ENCODE_KEY:
strlookup = pycbc_helpers.tcname_encode_key;
args = PyTuple_Pack(1, obj);
break;
case DECODE_KEY:
strlookup = pycbc_helpers.tcname_decode_key;
args = PyTuple_Pack(1, obj);
break;
case ENCODE_VALUE:
strlookup = pycbc_helpers.tcname_encode_value;
args = PyTuple_Pack(2, obj, flags);
break;
case DECODE_VALUE:
strlookup = pycbc_helpers.tcname_decode_value;
args = PyTuple_Pack(2, obj, flags);
break;
}
if (args == NULL) {
PYCBC_EXC_WRAP(PYCBC_EXC_INTERNAL, 0, "Couldn't build arguments");
goto GT_DONE;
}
meth = PyObject_GetAttr(conn->tc, strlookup);
if (!meth) {
PYCBC_EXC_WRAP_OBJ(PYCBC_EXC_ENCODING, 0,
"Couldn't find transcoder method",
conn->tc);
goto GT_DONE;
}
*result = PyObject_Call(meth, args, NULL);
if (*result) {
ret = 0;
} else {
PYCBC_EXC_WRAP_OBJ(PYCBC_EXC_ENCODING, 0,
"User-Defined transcoder failed",
obj);
}
GT_DONE:
Py_XDECREF(meth);
Py_XDECREF(args);
return ret;
}
static void
mk_sd_error(pycbc__SDResult *res,
pycbc_MultiResult *mres, lcb_error_t rc, size_t ix)
{
PyObject *spec = PyTuple_GET_ITEM(res->specs, ix);
PYCBC_EXC_WRAP_OBJ(PYCBC_EXC_LCBERR, rc, "Subcommand failure", spec);
pycbc_multiresult_adderr(mres);
}
/**
* This is only called if 'o' is not bytes
*/
static PyObject*
convert_to_bytesobj(PyObject *o)
{
PyObject *bytesobj = NULL;
pycbc_assert(!PyBytes_Check(o));
if (PyUnicode_Check(o)) {
bytesobj = PyUnicode_AsUTF8String(o);
}
if (!bytesobj) {
PYCBC_EXC_WRAP_OBJ(PYCBC_EXC_ENCODING,
0, "Couldn't convert object to bytes",
o);
}
return bytesobj;
}
static int
load_cached_method(PyObject *obj,
PyObject *attr, PyObject **target, int optional)
{
*target = PyObject_GetAttr(obj, attr);
if (*target) {
if (!PyCallable_Check(*target)) {
PYCBC_EXC_WRAP_OBJ(PYCBC_EXC_ARGUMENTS, 0,
"Invalid IOPS object", obj);
return -1;
}
return 0;
}
if (optional) {
PyErr_Clear();
return 0;
}
return -1;
}
static int
handle_item_kv(pycbc_Item *itm, PyObject *options, const struct storecmd_vars *scv,
struct single_key_context *skc)
{
int rv;
PyObject *ttl_O = NULL, *flagsobj_Oalt = NULL, *igncas_O = NULL;
PyObject *frag_O = NULL;
static char *itm_optlist[] = {
"ttl", "format", "ignore_cas", "fragment", NULL };
lcb_cas_t itmcas = itm->cas;
skc->value = itm->value;
if (options) {
rv = PyArg_ParseTupleAndKeywords(pycbc_DummyTuple, options, "|OOOO",
itm_optlist, &ttl_O, &flagsobj_Oalt, &igncas_O, &frag_O);
if (!rv) {
PYCBC_EXC_WRAP(PYCBC_EXC_ARGUMENTS, 0,
"Couldn't parse item options");
return -1;
}
if (ttl_O) {
if (-1 == pycbc_get_ttl(ttl_O, &skc->ttl, 1)) {
return -1;
}
if (!skc->ttl) {
skc->ttl = scv->ttl;
}
}
if (flagsobj_Oalt && flagsobj_Oalt != Py_None) {
skc->flagsobj = flagsobj_Oalt;
}
if (igncas_O && PyObject_IsTrue(igncas_O)) {
itmcas = 0;
}
if (frag_O == NULL) {
if (scv->operation == LCB_APPEND || scv->operation == LCB_PREPEND) {
PYCBC_EXC_WRAP(PYCBC_EXC_ARGUMENTS, 0, "append/prepend must provide options with 'fragment' specifier");
return -1;
}
} else {
if (scv->operation != LCB_APPEND && scv->operation != LCB_PREPEND) {
PYCBC_EXC_WRAP(PYCBC_EXC_ARGUMENTS, 0, "'fragment' only valid for append/prepend");
return -1;
}
skc->value = frag_O;
}
} else {
if (scv->operation == LCB_APPEND || scv->operation == LCB_PREPEND) {
PYCBC_EXC_WRAP(PYCBC_EXC_ARGUMENTS, 0, "append/prepend must provide options with 'fragment' specifier");
return -1;
}
}
if (!skc->value) {
PYCBC_EXC_WRAP_OBJ(PYCBC_EXC_ARGUMENTS, 0, "Value is empty", skc->value);
return -1;
}
skc->cas = itmcas;
return 0;
}
static int
encode_common(PyObject **o, void **buf, size_t *nbuf, lcb_uint32_t flags)
{
PyObject *bytesobj;
Py_ssize_t plen;
int rv;
if (flags == PYCBC_FMT_UTF8) {
#if PY_MAJOR_VERSION == 2
if (PyString_Check(*o)) {
#else
if (0) {
#endif
bytesobj = *o;
Py_INCREF(*o);
} else {
if (!PyUnicode_Check(*o)) {
PYCBC_EXC_WRAP_OBJ(PYCBC_EXC_ENCODING,
0, "Must be unicode or string", *o);
return -1;
}
bytesobj = PyUnicode_AsUTF8String(*o);
}
} else if (flags == PYCBC_FMT_BYTES) {
if (PyBytes_Check(*o) || PyByteArray_Check(*o)) {
bytesobj = *o;
Py_INCREF(*o);
} else {
PYCBC_EXC_WRAP_OBJ(PYCBC_EXC_ENCODING, 0,
"Must be bytes or bytearray", *o);
return -1;
}
} else {
PyObject *args = NULL;
PyObject *helper;
if (flags == PYCBC_FMT_PICKLE) {
helper = pycbc_helpers.pickle_encode;
} else if (flags == PYCBC_FMT_JSON) {
helper = pycbc_helpers.json_encode;
} else {
PYCBC_EXC_WRAP(PYCBC_EXC_ARGUMENTS, 0, "Unrecognized format");
return -1;
}
args = PyTuple_Pack(1, *o);
bytesobj = PyObject_CallObject(helper, args);
Py_DECREF(args);
if (!bytesobj) {
PYCBC_EXC_WRAP_OBJ(PYCBC_EXC_ENCODING,
0, "Couldn't encode value", *o);
return -1;
}
if (!PyBytes_Check(bytesobj)) {
PyObject *old = bytesobj;
bytesobj = convert_to_bytesobj(old);
Py_DECREF(old);
if (!bytesobj) {
return -1;
}
}
}
if (PyByteArray_Check(bytesobj)) {
*buf = PyByteArray_AS_STRING(bytesobj);
plen = PyByteArray_GET_SIZE(bytesobj);
rv = 0;
} else {
rv = PyBytes_AsStringAndSize(bytesobj, (char**)buf, &plen);
}
if (rv < 0) {
Py_DECREF(bytesobj);
PYCBC_EXC_WRAP(PYCBC_EXC_ENCODING, 0, "Couldn't encode value");
return -1;
}
*nbuf = plen;
*o = bytesobj;
return 0;
}
static int
decode_common(PyObject **vp, const char *buf, size_t nbuf, lcb_uint32_t flags)
{
PyObject *decoded = NULL;
lcb_U32 c_flags, l_flags;
c_flags = flags & PYCBC_FMT_COMMON_MASK;
l_flags = flags & PYCBC_FMT_LEGACY_MASK;
#define FMT_MATCHES(fmtbase) \
(c_flags == PYCBC_FMT_COMMON_##fmtbase || l_flags == PYCBC_FMT_LEGACY_##fmtbase)
if (FMT_MATCHES(UTF8)) {
decoded = convert_to_string(buf, nbuf, CONVERT_MODE_UTF8_ONLY);
if (!decoded) {
return -1;
}
} else if (FMT_MATCHES(BYTES)) {
GT_BYTES:
decoded = convert_to_string(buf, nbuf, CONVERT_MODE_BYTES_ONLY);
pycbc_assert(decoded);
} else {
PyObject *converter = NULL;
PyObject *args = NULL;
PyObject *first_arg = NULL;
if (FMT_MATCHES(PICKLE)) {
converter = pycbc_helpers.pickle_decode;
first_arg = convert_to_string(buf, nbuf, CONVERT_MODE_BYTES_ONLY);
pycbc_assert(first_arg);
} else if (FMT_MATCHES(JSON)) {
converter = pycbc_helpers.json_decode;
first_arg = convert_to_string(buf, nbuf, CONVERT_MODE_UTF8_ONLY);
if (!first_arg) {
return -1;
}
} else {
PyErr_Warn(PyExc_UserWarning, "Unrecognized flags. Forcing bytes");
goto GT_BYTES;
}
pycbc_assert(first_arg);
args = PyTuple_Pack(1, first_arg);
decoded = PyObject_CallObject(converter, args);
Py_DECREF(args);
Py_DECREF(first_arg);
}
if (!decoded) {
PyObject *bytes_tmp = PyBytes_FromStringAndSize(buf, nbuf);
PYCBC_EXC_WRAP_OBJ(PYCBC_EXC_ENCODING, 0, "Failed to decode bytes",
bytes_tmp);
Py_XDECREF(bytes_tmp);
return -1;
}
*vp = decoded;
return 0;
#undef FMT_MATCHES
}
int
pycbc_tc_encode_value(pycbc_Bucket *conn,
PyObject **value,
PyObject *flag_v,
void **buf,
size_t *nbuf,
lcb_uint32_t *flags)
{
PyObject *flags_obj;
PyObject *orig_value;
PyObject *new_value = NULL;
PyObject *result_tuple = NULL;
lcb_uint32_t flags_stackval;
int rv;
Py_ssize_t plen;
orig_value = *value;
if (!flag_v) {
flag_v = conn->dfl_fmt;
}
if (!conn->tc) {
if (flag_v == pycbc_helpers.fmt_auto) {
flag_v = pycbc_tc_determine_format(*value);
}
rv = pycbc_get_u32(flag_v, &flags_stackval);
if (rv < 0) {
PYCBC_EXC_WRAP_OBJ(PYCBC_EXC_ARGUMENTS, 0,
"Bad value for flags",
flag_v);
return -1;
}
*flags = flags_stackval;
return encode_common(value, buf, nbuf, flags_stackval);
}
/**
* Calling into Transcoder
*/
rv = do_call_tc(conn, orig_value, flag_v, &result_tuple, ENCODE_VALUE);
if (rv < 0) {
return -1;
}
if (!PyTuple_Check(result_tuple) || PyTuple_GET_SIZE(result_tuple) != 2) {
PYCBC_EXC_WRAP_EX(PYCBC_EXC_ENCODING, 0,
"Expected return of (bytes, flags)",
orig_value,
result_tuple);
Py_XDECREF(result_tuple);
return -1;
}
new_value = PyTuple_GET_ITEM(result_tuple, 0);
flags_obj = PyTuple_GET_ITEM(result_tuple, 1);
if (new_value == NULL || flags_obj == NULL) {
PYCBC_EXC_WRAP_OBJ(PYCBC_EXC_INTERNAL, 0, "Tuple GET_ITEM had NULL",
result_tuple);
Py_XDECREF(result_tuple);
return -1;
}
rv = pycbc_get_u32(flags_obj, &flags_stackval);
if (rv < 0) {
Py_XDECREF(result_tuple);
PYCBC_EXC_WRAP_VALUE(PYCBC_EXC_ENCODING, 0,
"Transcoder.encode_value() returned a bad "
"value for flags", orig_value);
return -1;
}
*flags = flags_stackval;
rv = PyBytes_AsStringAndSize(new_value, (char**)buf, &plen);
if (rv == -1) {
Py_XDECREF(result_tuple);
PYCBC_EXC_WRAP_VALUE(PYCBC_EXC_ENCODING, 0,
"Value returned by Transcoder.encode_value() "
"could not be converted to bytes",
orig_value);
return -1;
}
*value = new_value;
*nbuf = plen;
Py_INCREF(new_value);
Py_XDECREF(result_tuple);
return 0;
}
int
pycbc_tc_encode_value(pycbc_Bucket *conn, PyObject *srcbuf, PyObject *srcflags,
pycbc_pybuffer *dstbuf, lcb_U32 *dstflags)
{
PyObject *flags_obj;
PyObject *new_value = NULL;
PyObject *result_tuple = NULL;
lcb_U32 flags_stackval;
int rv;
Py_ssize_t plen;
if (!srcflags) {
srcflags = conn->dfl_fmt;
}
if (!conn->tc) {
if (srcflags == pycbc_helpers.fmt_auto) {
srcflags = pycbc_tc_determine_format(srcbuf);
}
rv = pycbc_get_u32(srcflags, &flags_stackval);
if (rv < 0) {
PYCBC_EXC_WRAP_OBJ(PYCBC_EXC_ARGUMENTS, 0,
"Bad value for flags", srcflags);
return -1;
}
*dstflags = flags_stackval;
return encode_common(srcbuf, dstbuf, flags_stackval);
}
/**
* Calling into Transcoder
*/
rv = do_call_tc(conn, srcbuf, srcflags, &result_tuple, ENCODE_VALUE);
if (rv < 0) {
return -1;
}
if (!PyTuple_Check(result_tuple) || PyTuple_GET_SIZE(result_tuple) != 2) {
PYCBC_EXC_WRAP_EX(PYCBC_EXC_ENCODING, 0,
"Expected return of (bytes, flags)",
srcbuf, result_tuple);
Py_XDECREF(result_tuple);
return -1;
}
new_value = PyTuple_GET_ITEM(result_tuple, 0);
flags_obj = PyTuple_GET_ITEM(result_tuple, 1);
if (new_value == NULL || flags_obj == NULL) {
PYCBC_EXC_WRAP_OBJ(PYCBC_EXC_INTERNAL, 0, "Tuple GET_ITEM had NULL",
result_tuple);
Py_XDECREF(result_tuple);
return -1;
}
rv = pycbc_get_u32(flags_obj, &flags_stackval);
if (rv < 0) {
Py_XDECREF(result_tuple);
PYCBC_EXC_WRAP_VALUE(PYCBC_EXC_ENCODING, 0,
"Transcoder.encode_value() returned a bad "
"value for flags", srcbuf);
return -1;
}
*dstflags = flags_stackval;
rv = PyBytes_AsStringAndSize(new_value, (char**)&dstbuf->buffer, &plen);
if (rv == -1) {
Py_XDECREF(result_tuple);
PYCBC_EXC_WRAP_VALUE(PYCBC_EXC_ENCODING, 0,
"Value returned by Transcoder.encode_value() "
"could not be converted to bytes", srcbuf);
return -1;
}
dstbuf->pyobj = new_value;
dstbuf->length = plen;
Py_INCREF(new_value);
Py_XDECREF(result_tuple);
return 0;
}
