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-rw-r--r--core/crypto/hashing_context.cpp137
-rw-r--r--core/crypto/hashing_context.h66
2 files changed, 203 insertions, 0 deletions
diff --git a/core/crypto/hashing_context.cpp b/core/crypto/hashing_context.cpp
new file mode 100644
index 0000000000..bdccb258dd
--- /dev/null
+++ b/core/crypto/hashing_context.cpp
@@ -0,0 +1,137 @@
+/*************************************************************************/
+/* hashing_context.cpp */
+/*************************************************************************/
+/* This file is part of: */
+/* GODOT ENGINE */
+/* https://godotengine.org */
+/*************************************************************************/
+/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */
+/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */
+/* */
+/* 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 "hashing_context.h"
+
+#include "core/crypto/crypto_core.h"
+
+Error HashingContext::start(HashType p_type) {
+ ERR_FAIL_COND_V(ctx != NULL, ERR_ALREADY_IN_USE);
+ _create_ctx(p_type);
+ ERR_FAIL_COND_V(ctx == NULL, ERR_UNAVAILABLE);
+ switch (type) {
+ case HASH_MD5:
+ return ((CryptoCore::MD5Context *)ctx)->start();
+ case HASH_SHA1:
+ return ((CryptoCore::SHA1Context *)ctx)->start();
+ case HASH_SHA256:
+ return ((CryptoCore::SHA256Context *)ctx)->start();
+ }
+ return ERR_UNAVAILABLE;
+}
+
+Error HashingContext::update(PoolByteArray p_chunk) {
+ ERR_FAIL_COND_V(ctx == NULL, ERR_UNCONFIGURED);
+ size_t len = p_chunk.size();
+ PoolByteArray::Read r = p_chunk.read();
+ switch (type) {
+ case HASH_MD5:
+ return ((CryptoCore::MD5Context *)ctx)->update(&r[0], len);
+ case HASH_SHA1:
+ return ((CryptoCore::SHA1Context *)ctx)->update(&r[0], len);
+ case HASH_SHA256:
+ return ((CryptoCore::SHA256Context *)ctx)->update(&r[0], len);
+ }
+ return ERR_UNAVAILABLE;
+}
+
+PoolByteArray HashingContext::finish() {
+ ERR_FAIL_COND_V(ctx == NULL, PoolByteArray());
+ PoolByteArray out;
+ Error err = FAILED;
+ switch (type) {
+ case HASH_MD5:
+ out.resize(16);
+ err = ((CryptoCore::MD5Context *)ctx)->finish(out.write().ptr());
+ break;
+ case HASH_SHA1:
+ out.resize(20);
+ err = ((CryptoCore::SHA1Context *)ctx)->finish(out.write().ptr());
+ break;
+ case HASH_SHA256:
+ out.resize(32);
+ err = ((CryptoCore::SHA256Context *)ctx)->finish(out.write().ptr());
+ break;
+ }
+ _delete_ctx();
+ ERR_FAIL_COND_V(err != OK, PoolByteArray());
+ return out;
+}
+
+void HashingContext::_create_ctx(HashType p_type) {
+ type = p_type;
+ switch (type) {
+ case HASH_MD5:
+ ctx = memnew(CryptoCore::MD5Context);
+ break;
+ case HASH_SHA1:
+ ctx = memnew(CryptoCore::SHA1Context);
+ break;
+ case HASH_SHA256:
+ ctx = memnew(CryptoCore::SHA256Context);
+ break;
+ default:
+ ctx = NULL;
+ }
+}
+
+void HashingContext::_delete_ctx() {
+ return;
+ switch (type) {
+ case HASH_MD5:
+ memdelete((CryptoCore::MD5Context *)ctx);
+ break;
+ case HASH_SHA1:
+ memdelete((CryptoCore::SHA1Context *)ctx);
+ break;
+ case HASH_SHA256:
+ memdelete((CryptoCore::SHA256Context *)ctx);
+ break;
+ }
+ ctx = NULL;
+}
+
+void HashingContext::_bind_methods() {
+ ClassDB::bind_method(D_METHOD("start", "type"), &HashingContext::start);
+ ClassDB::bind_method(D_METHOD("update", "chunk"), &HashingContext::update);
+ ClassDB::bind_method(D_METHOD("finish"), &HashingContext::finish);
+ BIND_ENUM_CONSTANT(HASH_MD5);
+ BIND_ENUM_CONSTANT(HASH_SHA1);
+ BIND_ENUM_CONSTANT(HASH_SHA256);
+}
+
+HashingContext::HashingContext() {
+ ctx = NULL;
+}
+
+HashingContext::~HashingContext() {
+ if (ctx != NULL)
+ _delete_ctx();
+}
diff --git a/core/crypto/hashing_context.h b/core/crypto/hashing_context.h
new file mode 100644
index 0000000000..aa69636f2c
--- /dev/null
+++ b/core/crypto/hashing_context.h
@@ -0,0 +1,66 @@
+/*************************************************************************/
+/* hashing_context.h */
+/*************************************************************************/
+/* This file is part of: */
+/* GODOT ENGINE */
+/* https://godotengine.org */
+/*************************************************************************/
+/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur. */
+/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md) */
+/* */
+/* 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. */
+/*************************************************************************/
+
+#ifndef HASHING_CONTEXT_H
+#define HASHING_CONTEXT_H
+
+#include "core/reference.h"
+
+class HashingContext : public Reference {
+ GDCLASS(HashingContext, Reference);
+
+public:
+ enum HashType {
+ HASH_MD5,
+ HASH_SHA1,
+ HASH_SHA256
+ };
+
+private:
+ void *ctx;
+ HashType type;
+
+protected:
+ static void _bind_methods();
+ void _create_ctx(HashType p_type);
+ void _delete_ctx();
+
+public:
+ Error start(HashType p_type);
+ Error update(PoolByteArray p_chunk);
+ PoolByteArray finish();
+
+ HashingContext();
+ ~HashingContext();
+};
+
+VARIANT_ENUM_CAST(HashingContext::HashType);
+
+#endif // HASHING_CONTEXT_H
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