1 /*
2 * Copyright (C) 2022 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15 #include "payload_data/move_object_data.h"
16 #include "media_log.h"
17 #include "media_mtp_utils.h"
18 #include "mtp_packet_tools.h"
19 #include "mtp_storage_manager.h"
20 using namespace std;
21 namespace OHOS {
22 namespace Media {
23 static constexpr int32_t PARSER_PARAM_SUM = 3;
24
MoveObjectData(std::shared_ptr<MtpOperationContext> & context)25 MoveObjectData::MoveObjectData(std::shared_ptr<MtpOperationContext> &context)
26 : PayloadData(context)
27 {
28 }
29
~MoveObjectData()30 MoveObjectData::~MoveObjectData()
31 {
32 }
33
Parser(const std::vector<uint8_t> & buffer,int32_t readSize)34 int MoveObjectData::Parser(const std::vector<uint8_t> &buffer, int32_t readSize)
35 {
36 if ((context_ == nullptr) || (!MtpStorageManager::GetInstance()->HasStorage())) {
37 MEDIA_ERR_LOG("MoveObjectData::parser null or storage");
38 return MTP_ERROR_CONTEXT_IS_NULL;
39 }
40
41 int32_t parameterCount = (readSize - MTP_CONTAINER_HEADER_SIZE) / MTP_PARAMETER_SIZE;
42 if (parameterCount < PARSER_PARAM_SUM) {
43 MEDIA_ERR_LOG("MoveObjectData::parser paramCount=%{public}u, needCount=%{public}u",
44 parameterCount, PARSER_PARAM_SUM);
45 return MTP_ERROR_PACKET_INCORRECT;
46 }
47
48 size_t offset = MTP_CONTAINER_HEADER_SIZE;
49 context_->handle = MtpPacketTool::GetUInt32(buffer, offset);
50 context_->storageID = MtpPacketTool::GetUInt32(buffer, offset);
51 context_->parent = MtpPacketTool::GetUInt32(buffer, offset);
52 return MTP_SUCCESS;
53 }
54
Maker(std::vector<uint8_t> & outBuffer)55 int MoveObjectData::Maker(std::vector<uint8_t> &outBuffer)
56 {
57 return MTP_SUCCESS;
58 }
59
CalculateSize()60 uint32_t MoveObjectData::CalculateSize()
61 {
62 std::vector<uint8_t> tmpVar;
63 int res = Maker(tmpVar);
64 if (res != MTP_SUCCESS) {
65 return res;
66 }
67 return tmpVar.size();
68 }
69 } // namespace Media
70 } // namespace OHOS