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Add base64 encode/decode into functions

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Kovid Goyal
2024-09-06 09:47:14 +05:30
parent 033a4544f3
commit c8aa6d75a7
2 changed files with 31 additions and 2 deletions
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27
kitty/data-types.c
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@@ -89,6 +89,17 @@ pybase64_encode(PyObject UNUSED *self, PyObject *args) {
return ans;
}
static PyObject*
base64_encode_into(PyObject UNUSED *self, PyObject *args) {
int add_padding = 0;
RAII_PY_BUFFER(view); RAII_PY_BUFFER(output);
if (!PyArg_ParseTuple(args, "s*w*|i", &view, &add_padding)) return NULL;
size_t sz = required_buffer_size_for_base64_encode(view.len);
if (output.len < (ssize_t)sz) { PyErr_SetString(PyExc_TypeError, "output buffer too small"); return NULL; }
base64_encode8(view.buf, view.len, output.buf, &sz, add_padding);
return PyLong_FromSize_t(sz);
}
static PyObject*
pybase64_decode(PyObject UNUSED *self, PyObject *args) {
RAII_PY_BUFFER(view);
@@ -105,6 +116,20 @@ pybase64_decode(PyObject UNUSED *self, PyObject *args) {
return ans;
}
static PyObject*
base64_decode_into(PyObject UNUSED *self, PyObject *args) {
RAII_PY_BUFFER(view); RAII_PY_BUFFER(output);
if (!PyArg_ParseTuple(args, "s*", &view, &output)) return NULL;
size_t sz = required_buffer_size_for_base64_decode(view.len);
if (output.len < (ssize_t)sz) { PyErr_SetString(PyExc_TypeError, "output buffer too small"); return NULL; }
if (!base64_decode8(view.buf, view.len, output.buf, &sz)) {
PyErr_SetString(PyExc_ValueError, "Invalid base64 input data");
return NULL;
}
return PyLong_FromSize_t(sz);
}
typedef struct StreamingBase64Decoder {
PyObject_HEAD
struct base64_state state;
@@ -560,7 +585,9 @@ static PyMethodDef module_methods[] = {
{"close_tty", close_tty, METH_VARARGS, ""},
{"set_iutf8_fd", (PyCFunction)pyset_iutf8, METH_VARARGS, ""},
{"base64_encode", (PyCFunction)pybase64_encode, METH_VARARGS, ""},
{"base64_encode_into", (PyCFunction)base64_encode_into, METH_VARARGS, ""},
{"base64_decode", (PyCFunction)pybase64_decode, METH_VARARGS, ""},
{"base64_decode_into", (PyCFunction)base64_decode_into, METH_VARARGS, ""},
{"thread_write", (PyCFunction)cm_thread_write, METH_VARARGS, ""},
{"redirect_std_streams", (PyCFunction)redirect_std_streams, METH_VARARGS, ""},
{"locale_is_valid", (PyCFunction)locale_is_valid, METH_VARARGS, ""},