From 6d7ba58f880be618ade07f8ea080fe8c4bf8a896 Mon Sep 17 00:00:00 2001 From: cyfraeviolae Date: Wed, 3 Apr 2024 03:10:44 -0400 Subject: venv --- .../site-packages/markupsafe/_speedups.c | 320 +++++++++++++++++++++ 1 file changed, 320 insertions(+) create mode 100644 venv/lib/python3.11/site-packages/markupsafe/_speedups.c (limited to 'venv/lib/python3.11/site-packages/markupsafe/_speedups.c') diff --git a/venv/lib/python3.11/site-packages/markupsafe/_speedups.c b/venv/lib/python3.11/site-packages/markupsafe/_speedups.c new file mode 100644 index 0000000..3c463fb --- /dev/null +++ b/venv/lib/python3.11/site-packages/markupsafe/_speedups.c @@ -0,0 +1,320 @@ +#include + +static PyObject* markup; + +static int +init_constants(void) +{ + PyObject *module; + + /* import markup type so that we can mark the return value */ + module = PyImport_ImportModule("markupsafe"); + if (!module) + return 0; + markup = PyObject_GetAttrString(module, "Markup"); + Py_DECREF(module); + + return 1; +} + +#define GET_DELTA(inp, inp_end, delta) \ + while (inp < inp_end) { \ + switch (*inp++) { \ + case '"': \ + case '\'': \ + case '&': \ + delta += 4; \ + break; \ + case '<': \ + case '>': \ + delta += 3; \ + break; \ + } \ + } + +#define DO_ESCAPE(inp, inp_end, outp) \ + { \ + Py_ssize_t ncopy = 0; \ + while (inp < inp_end) { \ + switch (*inp) { \ + case '"': \ + memcpy(outp, inp-ncopy, sizeof(*outp)*ncopy); \ + outp += ncopy; ncopy = 0; \ + *outp++ = '&'; \ + *outp++ = '#'; \ + *outp++ = '3'; \ + *outp++ = '4'; \ + *outp++ = ';'; \ + break; \ + case '\'': \ + memcpy(outp, inp-ncopy, sizeof(*outp)*ncopy); \ + outp += ncopy; ncopy = 0; \ + *outp++ = '&'; \ + *outp++ = '#'; \ + *outp++ = '3'; \ + *outp++ = '9'; \ + *outp++ = ';'; \ + break; \ + case '&': \ + memcpy(outp, inp-ncopy, sizeof(*outp)*ncopy); \ + outp += ncopy; ncopy = 0; \ + *outp++ = '&'; \ + *outp++ = 'a'; \ + *outp++ = 'm'; \ + *outp++ = 'p'; \ + *outp++ = ';'; \ + break; \ + case '<': \ + memcpy(outp, inp-ncopy, sizeof(*outp)*ncopy); \ + outp += ncopy; ncopy = 0; \ + *outp++ = '&'; \ + *outp++ = 'l'; \ + *outp++ = 't'; \ + *outp++ = ';'; \ + break; \ + case '>': \ + memcpy(outp, inp-ncopy, sizeof(*outp)*ncopy); \ + outp += ncopy; ncopy = 0; \ + *outp++ = '&'; \ + *outp++ = 'g'; \ + *outp++ = 't'; \ + *outp++ = ';'; \ + break; \ + default: \ + ncopy++; \ + } \ + inp++; \ + } \ + memcpy(outp, inp-ncopy, sizeof(*outp)*ncopy); \ + } + +static PyObject* +escape_unicode_kind1(PyUnicodeObject *in) +{ + Py_UCS1 *inp = PyUnicode_1BYTE_DATA(in); + Py_UCS1 *inp_end = inp + PyUnicode_GET_LENGTH(in); + Py_UCS1 *outp; + PyObject *out; + Py_ssize_t delta = 0; + + GET_DELTA(inp, inp_end, delta); + if (!delta) { + Py_INCREF(in); + return (PyObject*)in; + } + + out = PyUnicode_New(PyUnicode_GET_LENGTH(in) + delta, + PyUnicode_IS_ASCII(in) ? 127 : 255); + if (!out) + return NULL; + + inp = PyUnicode_1BYTE_DATA(in); + outp = PyUnicode_1BYTE_DATA(out); + DO_ESCAPE(inp, inp_end, outp); + return out; +} + +static PyObject* +escape_unicode_kind2(PyUnicodeObject *in) +{ + Py_UCS2 *inp = PyUnicode_2BYTE_DATA(in); + Py_UCS2 *inp_end = inp + PyUnicode_GET_LENGTH(in); + Py_UCS2 *outp; + PyObject *out; + Py_ssize_t delta = 0; + + GET_DELTA(inp, inp_end, delta); + if (!delta) { + Py_INCREF(in); + return (PyObject*)in; + } + + out = PyUnicode_New(PyUnicode_GET_LENGTH(in) + delta, 65535); + if (!out) + return NULL; + + inp = PyUnicode_2BYTE_DATA(in); + outp = PyUnicode_2BYTE_DATA(out); + DO_ESCAPE(inp, inp_end, outp); + return out; +} + + +static PyObject* +escape_unicode_kind4(PyUnicodeObject *in) +{ + Py_UCS4 *inp = PyUnicode_4BYTE_DATA(in); + Py_UCS4 *inp_end = inp + PyUnicode_GET_LENGTH(in); + Py_UCS4 *outp; + PyObject *out; + Py_ssize_t delta = 0; + + GET_DELTA(inp, inp_end, delta); + if (!delta) { + Py_INCREF(in); + return (PyObject*)in; + } + + out = PyUnicode_New(PyUnicode_GET_LENGTH(in) + delta, 1114111); + if (!out) + return NULL; + + inp = PyUnicode_4BYTE_DATA(in); + outp = PyUnicode_4BYTE_DATA(out); + DO_ESCAPE(inp, inp_end, outp); + return out; +} + +static PyObject* +escape_unicode(PyUnicodeObject *in) +{ + if (PyUnicode_READY(in)) + return NULL; + + switch (PyUnicode_KIND(in)) { + case PyUnicode_1BYTE_KIND: + return escape_unicode_kind1(in); + case PyUnicode_2BYTE_KIND: + return escape_unicode_kind2(in); + case PyUnicode_4BYTE_KIND: + return escape_unicode_kind4(in); + } + assert(0); /* shouldn't happen */ + return NULL; +} + +static PyObject* +escape(PyObject *self, PyObject *text) +{ + static PyObject *id_html; + PyObject *s = NULL, *rv = NULL, *html; + + if (id_html == NULL) { + id_html = PyUnicode_InternFromString("__html__"); + if (id_html == NULL) { + return NULL; + } + } + + /* we don't have to escape integers, bools or floats */ + if (PyLong_CheckExact(text) || + PyFloat_CheckExact(text) || PyBool_Check(text) || + text == Py_None) + return PyObject_CallFunctionObjArgs(markup, text, NULL); + + /* if the object has an __html__ method that performs the escaping */ + html = PyObject_GetAttr(text ,id_html); + if (html) { + s = PyObject_CallObject(html, NULL); + Py_DECREF(html); + if (s == NULL) { + return NULL; + } + /* Convert to Markup object */ + rv = PyObject_CallFunctionObjArgs(markup, (PyObject*)s, NULL); + Py_DECREF(s); + return rv; + } + + /* otherwise make the object unicode if it isn't, then escape */ + PyErr_Clear(); + if (!PyUnicode_Check(text)) { + PyObject *unicode = PyObject_Str(text); + if (!unicode) + return NULL; + s = escape_unicode((PyUnicodeObject*)unicode); + Py_DECREF(unicode); + } + else + s = escape_unicode((PyUnicodeObject*)text); + + /* convert the unicode string into a markup object. */ + rv = PyObject_CallFunctionObjArgs(markup, (PyObject*)s, NULL); + Py_DECREF(s); + return rv; +} + + +static PyObject* +escape_silent(PyObject *self, PyObject *text) +{ + if (text != Py_None) + return escape(self, text); + return PyObject_CallFunctionObjArgs(markup, NULL); +} + + +static PyObject* +soft_str(PyObject *self, PyObject *s) +{ + if (!PyUnicode_Check(s)) + return PyObject_Str(s); + Py_INCREF(s); + return s; +} + + +static PyMethodDef module_methods[] = { + { + "escape", + (PyCFunction)escape, + METH_O, + "Replace the characters ``&``, ``<``, ``>``, ``'``, and ``\"`` in" + " the string with HTML-safe sequences. Use this if you need to display" + " text that might contain such characters in HTML.\n\n" + "If the object has an ``__html__`` method, it is called and the" + " return value is assumed to already be safe for HTML.\n\n" + ":param s: An object to be converted to a string and escaped.\n" + ":return: A :class:`Markup` string with the escaped text.\n" + }, + { + "escape_silent", + (PyCFunction)escape_silent, + METH_O, + "Like :func:`escape` but treats ``None`` as the empty string." + " Useful with optional values, as otherwise you get the string" + " ``'None'`` when the value is ``None``.\n\n" + ">>> escape(None)\n" + "Markup('None')\n" + ">>> escape_silent(None)\n" + "Markup('')\n" + }, + { + "soft_str", + (PyCFunction)soft_str, + METH_O, + "Convert an object to a string if it isn't already. This preserves" + " a :class:`Markup` string rather than converting it back to a basic" + " string, so it will still be marked as safe and won't be escaped" + " again.\n\n" + ">>> value = escape(\"\")\n" + ">>> value\n" + "Markup('<User 1>')\n" + ">>> escape(str(value))\n" + "Markup('&lt;User 1&gt;')\n" + ">>> escape(soft_str(value))\n" + "Markup('<User 1>')\n" + }, + {NULL, NULL, 0, NULL} /* Sentinel */ +}; + +static struct PyModuleDef module_definition = { + PyModuleDef_HEAD_INIT, + "markupsafe._speedups", + NULL, + -1, + module_methods, + NULL, + NULL, + NULL, + NULL +}; + +PyMODINIT_FUNC +PyInit__speedups(void) +{ + if (!init_constants()) + return NULL; + + return PyModule_Create(&module_definition); +} -- cgit v1.2.3