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/* hashstring.cc - Wrapper around HashString
*
* Copyright 2009 Julian Andres Klode <jak@debian.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#include <Python.h>
#include "generic.h"
#include "apt_pkgmodule.h"
#include <apt-pkg/hashes.h>
static PyObject *hashstring_new(PyTypeObject *type,PyObject *Args,
PyObject *kwds)
{
char *Type = NULL;
char *Hash = NULL;
char *kwlist[] = {"type", "hash", NULL};
if (PyArg_ParseTupleAndKeywords(Args, kwds, "s|s:__new__", kwlist, &Type,
&Hash) == 0)
return 0;
CppPyObject<HashString*> *PyObj = CppPyObject_NEW<HashString*>(NULL, type);
if (Hash)
PyObj->Object = new HashString(Type,Hash);
else // Type is the combined form now (i.e. type:hash)
PyObj->Object = new HashString(Type);
return PyObj;
}
static PyObject *hashstring_repr(PyObject *self)
{
HashString *hash = GetCpp<HashString*>(self);
return PyString_FromFormat("<%s object: \"%s\">", self->ob_type->tp_name,
hash->toStr().c_str());
}
static PyObject *hashstring_str(PyObject *self)
{
const HashString *hash = GetCpp<HashString*>(self);
return CppPyString(hash->toStr());
}
static PyObject *hashstring_get_hashtype(PyObject *self)
{
const HashString *hash = GetCpp<HashString*>(self);
return CppPyString(hash->HashType());
}
static PyObject *hashstring_get_usable(PyObject *self)
{
const HashString *hash = GetCpp<HashString*>(self);
return PyBool_FromLong(hash->usable());
}
static PyObject *hashstring_get_hashvalue(PyObject *self)
{
const HashString *hash = GetCpp<HashString*>(self);
return CppPyString(hash->HashValue());
}
static char *hashstring_verify_file_doc =
"verify_file(filename: str) -> bool\n\n"
"Verify that the file indicated by filename matches the hash.";
static PyObject *hashstring_verify_file(PyObject *self,PyObject *args)
{
const HashString *hash = GetCpp<HashString*>(self);
char *filename;
if (PyArg_ParseTuple(args, "s:verify_file", &filename) == 0)
return 0;
return PyBool_FromLong(hash->VerifyFile(filename));
}
static PyMethodDef hashstring_methods[] = {
{"verify_file",hashstring_verify_file,METH_VARARGS,
hashstring_verify_file_doc},
{NULL}
};
static PyGetSetDef hashstring_getset[] = {
{"hashtype",(getter)hashstring_get_hashtype,0,
"The type of the hash, as a string (possible: MD5Sum,SHA1,SHA256)."},
{"hashvalue",(getter)hashstring_get_hashvalue,0,
"The value of the hash, as a hexadecimal string\n"
"\n"
".. versionadded:: 1.9.0"},
{"usable",(getter)hashstring_get_usable,0,
"True if the hashstring is a trusted hash type."},
{NULL}
};
static PyObject *hashstring_richcompare(PyObject *obj1, PyObject *obj2, int op)
{
if (!PyObject_TypeCheck(obj1, &PyHashString_Type))
return PyErr_SetString(PyExc_TypeError, "Expected HashString"), nullptr;
if (!PyObject_TypeCheck(obj2, &PyHashString_Type))
return PyErr_SetString(PyExc_TypeError, "Expected HashString"), nullptr;
const HashString *a = GetCpp<HashString*>(obj1);
const HashString *b = GetCpp<HashString*>(obj2);
PyObject *result = Py_False;
switch (op) {
case Py_LT:
case Py_GT:
result = Py_False;
break;
case Py_LE:
case Py_GE:
case Py_EQ:
result = *a == *b ? Py_True : Py_False;
break;
case Py_NE:
result = *a != *b ? Py_True : Py_False;
break;
}
Py_INCREF(result);
return result;
}
static char *hashstring_doc =
"HashString(type, hash) OR HashString('type:hash')\n\n"
"Create a new HashString object. The first form allows you to specify\n"
"a type and a hash, and the second form a single string where type and\n"
"hash are separated by a colon, e.g.::\n\n"
" HashString('MD5Sum', '6cc1b6e6655e3555ac47e5b5fe26d04e')\n\n"
"Valid options for 'type' are: MD5Sum, SHA1, SHA256.";
PyTypeObject PyHashString_Type = {
PyVarObject_HEAD_INIT(&PyType_Type, 0)
"apt_pkg.HashString", // tp_name
sizeof(CppPyObject<HashString*>), // tp_basicsize
0, // tp_itemsize
// Methods
CppDeallocPtr<HashString*>, // tp_dealloc
0, // tp_print
0, // tp_getattr
0, // tp_setattr
0, // tp_compare
hashstring_repr, // tp_repr
0, // tp_as_number
0, // tp_as_sequence
0, // tp_as_mapping
0, // tp_hash
0, // tp_call
hashstring_str, // tp_str
0, // tp_getattro
0, // tp_setattro
0, // tp_as_buffer
Py_TPFLAGS_DEFAULT | // tp_flags
Py_TPFLAGS_BASETYPE,
hashstring_doc, // tp_doc
0, // tp_traverse
0, // tp_clear
hashstring_richcompare, // tp_richcompare
0, // tp_weaklistoffset
0, // tp_iter
0, // tp_iternext
hashstring_methods, // tp_methods
0, // tp_members
hashstring_getset, // tp_getset
0, // tp_base
0, // tp_dict
0, // tp_descr_get
0, // tp_descr_set
0, // tp_dictoffset
0, // tp_init
0, // tp_alloc
hashstring_new, // tp_new
};
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