moduhashlib: Initial module skeleton.

7 files changed, 126 insertions, 0 deletions

diff --git a/extmod/moduhashlib.c b/extmod/moduhashlib.c
new file mode 100644
index 0000000000..bdc2529c19
--- /dev/null
+++ b/extmod/moduhashlib.c
@@ -0,0 +1,108 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2014 Paul Sokolovsky
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include <assert.h>
+#include <string.h>
+
+#include "mpconfig.h"
+#include "nlr.h"
+#include "misc.h"
+#include "qstr.h"
+#include "obj.h"
+#include "runtime.h"
+
+#if MICROPY_PY_UHASHLIB
+
+typedef struct _mp_obj_hash_t {
+    mp_obj_base_t base;
+    char state[0];
+} mp_obj_hash_t;
+
+STATIC mp_obj_t hash_update(mp_obj_t self_in, mp_obj_t arg);
+
+STATIC mp_obj_t hash_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
+    mp_arg_check_num(n_args, n_kw, 0, 1, false);
+    mp_obj_hash_t *o = m_new_obj_var(mp_obj_hash_t, char, 0);
+    o->base.type = type_in;
+    if (n_args == 1) {
+        hash_update(o, args[0]);
+    }
+    return o;
+}
+
+STATIC mp_obj_t hash_update(mp_obj_t self_in, mp_obj_t arg) {
+    return mp_const_none;
+}
+MP_DEFINE_CONST_FUN_OBJ_2(hash_update_obj, hash_update);
+
+STATIC mp_obj_t hash_digest(mp_obj_t self_in) {
+    return mp_obj_new_bytes((const byte*)"\0\0\0\0", 4);
+}
+MP_DEFINE_CONST_FUN_OBJ_1(hash_digest_obj, hash_digest);
+
+STATIC mp_obj_t hash_hexdigest(mp_obj_t self_in) {
+    return mp_obj_new_str("00000000", 8, false);
+}
+MP_DEFINE_CONST_FUN_OBJ_1(hash_hexdigest_obj, hash_hexdigest);
+
+STATIC const mp_map_elem_t hash_locals_dict_table[] = {
+    { MP_OBJ_NEW_QSTR(MP_QSTR_update), (mp_obj_t) &hash_update_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_digest), (mp_obj_t) &hash_digest_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_hexdigest), (mp_obj_t) &hash_hexdigest_obj },
+};
+
+STATIC MP_DEFINE_CONST_DICT(hash_locals_dict, hash_locals_dict_table);
+
+STATIC const mp_obj_type_t sha256_type = {
+    { &mp_type_type },
+    .name = MP_QSTR_sha256,
+    .make_new = hash_make_new,
+    .locals_dict = (mp_obj_t)&hash_locals_dict,
+};
+
+STATIC const mp_map_elem_t mp_module_hashlib_globals_table[] = {
+    { MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_uhashlib) },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_sha256), (mp_obj_t)&sha256_type },
+};
+
+STATIC const mp_obj_dict_t mp_module_hashlib_globals = {
+    .base = {&mp_type_dict},
+    .map = {
+        .all_keys_are_qstrs = 1,
+        .table_is_fixed_array = 1,
+        .used = MP_ARRAY_SIZE(mp_module_hashlib_globals_table),
+        .alloc = MP_ARRAY_SIZE(mp_module_hashlib_globals_table),
+        .table = (mp_map_elem_t*)mp_module_hashlib_globals_table,
+    },
+};
+
+const mp_obj_module_t mp_module_uhashlib = {
+    .base = { &mp_type_module },
+    .name = MP_QSTR_uhashlib,
+    .globals = (mp_obj_dict_t*)&mp_module_hashlib_globals,
+};
+
+#endif //MICROPY_PY_UHASHLIB
diff --git a/py/builtin.h b/py/builtin.h
index e102dab8e1..a6736152c5 100644
--- a/py/builtin.h
+++ b/py/builtin.h
@@ -94,3 +94,4 @@ extern const mp_obj_module_t mp_module_uzlib;
 extern const mp_obj_module_t mp_module_ujson;
 extern const mp_obj_module_t mp_module_ure;
 extern const mp_obj_module_t mp_module_uheapq;
+extern const mp_obj_module_t mp_module_uhashlib;
diff --git a/py/builtintables.c b/py/builtintables.c
index b0d20417e5..1777838e0b 100644
--- a/py/builtintables.c
+++ b/py/builtintables.c
@@ -221,6 +221,9 @@ STATIC const mp_map_elem_t mp_builtin_module_table[] = {
 #if MICROPY_PY_UHEAPQ
     { MP_OBJ_NEW_QSTR(MP_QSTR_uheapq), (mp_obj_t)&mp_module_uheapq },
 #endif
+#if MICROPY_PY_UHASHLIB
+    { MP_OBJ_NEW_QSTR(MP_QSTR_uhashlib), (mp_obj_t)&mp_module_uhashlib },
+#endif
 
     // extra builtin modules as defined by a port
     MICROPY_PORT_BUILTIN_MODULES
diff --git a/py/mpconfig.h b/py/mpconfig.h
index 0c214bb5b6..f4f9986e4d 100644
--- a/py/mpconfig.h
+++ b/py/mpconfig.h
@@ -435,6 +435,10 @@ typedef double mp_float_t;
 #define MICROPY_PY_UHEAPQ (0)
 #endif
 
+#ifndef MICROPY_PY_UHASHLIB
+#define MICROPY_PY_UHASHLIB (0)
+#endif
+
 /*****************************************************************************/
 /* Hooks for a port to add builtins                                          */
 
diff --git a/py/py.mk b/py/py.mk
index fe6220bac6..dd52687c70 100644
--- a/py/py.mk
+++ b/py/py.mk
@@ -115,6 +115,7 @@ PY_O_BASENAME = \
 	../extmod/modure.o \
 	../extmod/moduzlib.o \
 	../extmod/moduheapq.o \
+	../extmod/moduhashlib.o \
 
 # prepend the build destination prefix to the py object files
 PY_O = $(addprefix $(PY_BUILD)/, $(PY_O_BASENAME))
diff --git a/py/qstrdefs.h b/py/qstrdefs.h
index 7f1b3c417a..ccf6a8c28b 100644
--- a/py/qstrdefs.h
+++ b/py/qstrdefs.h
@@ -510,3 +510,11 @@ Q(heappush)
 Q(heappop)
 Q(heapify)
 #endif
+
+#if MICROPY_PY_UHASHLIB
+Q(uhashlib)
+Q(update)
+Q(digest)
+Q(hexdigest)
+Q(sha256)
+#endif
diff --git a/unix/mpconfigport.h b/unix/mpconfigport.h
index 1baf56a11b..3e99a5c56b 100644
--- a/unix/mpconfigport.h
+++ b/unix/mpconfigport.h
@@ -61,6 +61,7 @@
 #define MICROPY_PY_UJSON            (1)
 #define MICROPY_PY_URE              (1)
 #define MICROPY_PY_UHEAPQ           (1)
+#define MICROPY_PY_UHASHLIB         (1)
 
 // Define to MICROPY_ERROR_REPORTING_DETAILED to get function, etc.
 // names in exception messages (may require more RAM).