97 lines
3.9 KiB
C
97 lines
3.9 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2022 Scott Shawcroft for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "shared-bindings/hashlib/Hash.h"
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#include "py/obj.h"
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#include "py/objproperty.h"
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#include "py/objstr.h"
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#include "py/runtime.h"
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//| class Hash:
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//| """In progress hash algorithm. This object is always created by a `hashlib.new()`. It has no
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//| user-visible constructor."""
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//|
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//| digest_size: int
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//| """Digest size in bytes"""
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STATIC mp_obj_t hashlib_hash_digest_size_get(mp_obj_t self_in) {
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mp_check_self(mp_obj_is_type(self_in, &hashlib_hash_type));
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hashlib_hash_obj_t *self = MP_OBJ_TO_PTR(self_in);
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return MP_OBJ_NEW_SMALL_INT(common_hal_hashlib_hash_get_digest_size(self));
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}
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MP_DEFINE_CONST_FUN_OBJ_1(hashlib_hash_digest_size_get_obj, hashlib_hash_digest_size_get);
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MP_PROPERTY_GETTER(hashlib_hash_digest_size_obj, (mp_obj_t)&hashlib_hash_digest_size_get_obj);
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//| def update(self, data: ReadableBuffer) -> None:
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//| """Update the hash with the given bytes.
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//|
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//| :param ~circuitpython_typing.ReadableBuffer data: Update the hash from data in this buffer
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//| """
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//| ...
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mp_obj_t hashlib_hash_update(mp_obj_t self_in, mp_obj_t buf_in) {
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mp_check_self(mp_obj_is_type(self_in, &hashlib_hash_type));
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hashlib_hash_obj_t *self = MP_OBJ_TO_PTR(self_in);
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mp_buffer_info_t bufinfo;
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mp_get_buffer_raise(buf_in, &bufinfo, MP_BUFFER_READ);
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common_hal_hashlib_hash_update(self, bufinfo.buf, bufinfo.len);
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_2(hashlib_hash_update_obj, hashlib_hash_update);
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//| def digest(self) -> bytes:
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//| """Returns the current digest as bytes() with a length of `hashlib.Hash.digest_size`."""
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//| ...
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//|
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STATIC mp_obj_t hashlib_hash_digest(mp_obj_t self_in) {
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mp_check_self(mp_obj_is_type(self_in, &hashlib_hash_type));
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hashlib_hash_obj_t *self = MP_OBJ_TO_PTR(self_in);
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size_t size = common_hal_hashlib_hash_get_digest_size(self);
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mp_obj_t obj = mp_obj_new_bytes_of_zeros(size);
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mp_obj_str_t *o = MP_OBJ_TO_PTR(obj);
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common_hal_hashlib_hash_digest(self, (uint8_t *)o->data, size);
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return obj;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(hashlib_hash_digest_obj, hashlib_hash_digest);
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STATIC const mp_rom_map_elem_t hashlib_hash_locals_dict_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_digest_size), MP_ROM_PTR(&hashlib_hash_digest_size_obj) },
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{ MP_ROM_QSTR(MP_QSTR_update), MP_ROM_PTR(&hashlib_hash_update_obj) },
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{ MP_ROM_QSTR(MP_QSTR_digest), MP_ROM_PTR(&hashlib_hash_digest_obj) },
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};
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STATIC MP_DEFINE_CONST_DICT(hashlib_hash_locals_dict, hashlib_hash_locals_dict_table);
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const mp_obj_type_t hashlib_hash_type = {
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{ &mp_type_type },
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.name = MP_QSTR_Hash,
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.locals_dict = (mp_obj_dict_t *)&hashlib_hash_locals_dict,
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};
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