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/**
* Copyright (C) 2017 MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/platform/basic.h"
#include "mongo/crypto/sha1_block.h"
#include "mongo/bson/bsonmisc.h"
#include "mongo/bson/bsonobjbuilder.h"
#include "mongo/util/base64.h"
#include "mongo/util/mongoutils/str.h"
namespace mongo {
constexpr size_t SHA1Block::kHashLength;
SHA1Block::SHA1Block(HashType hash) : _hash(std::move(hash)) {}
StatusWith<SHA1Block> SHA1Block::fromBuffer(const uint8_t* input, size_t inputLen) {
if (inputLen != kHashLength) {
return {ErrorCodes::InvalidLength,
str::stream() << "Unsupported SHA1Hash hash length: " << inputLen};
}
HashType newHash;
memcpy(newHash.data(), input, inputLen);
return SHA1Block(newHash);
}
StatusWith<SHA1Block> SHA1Block::fromBinData(const BSONBinData& binData) {
if (binData.type != BinDataGeneral) {
return {ErrorCodes::UnsupportedFormat, "SHA1Block only accepts BinDataGeneral type"};
}
if (binData.length != kHashLength) {
return {ErrorCodes::UnsupportedFormat,
str::stream() << "Unsupported SHA1Block hash length: " << binData.length};
}
HashType newHash;
memcpy(newHash.data(), binData.data, binData.length);
return SHA1Block(newHash);
}
std::string SHA1Block::toString() const {
return base64::encode(reinterpret_cast<const char*>(_hash.data()), _hash.size());
}
void SHA1Block::appendAsBinData(BSONObjBuilder& builder, StringData fieldName) const {
builder.appendBinData(fieldName, _hash.size(), BinDataGeneral, _hash.data());
}
void SHA1Block::xorInline(const SHA1Block& other) {
for (size_t x = 0; x < _hash.size(); x++) {
_hash[x] ^= other._hash[x];
}
}
bool SHA1Block::operator==(const SHA1Block& rhs) const {
return rhs._hash == this->_hash;
}
} // namespace mongo
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