1 /*
2 * Copyright (c) 2022-2023 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
16 #include "dscreen_source_callback_stub.h"
17
18 #include <string>
19
20 #include "idscreen_source_callback.h"
21 #include "ipc_types.h"
22 #include "message_parcel.h"
23
24 #include "dscreen_constants.h"
25 #include "dscreen_errcode.h"
26 #include "dscreen_log.h"
27
28 namespace OHOS { class MessageOption; }
29 namespace OHOS {
30 namespace DistributedHardware {
DScreenSourceCallbackStub()31 DScreenSourceCallbackStub::DScreenSourceCallbackStub()
32 {
33 memberFuncMap_[NOTIFY_REG_RESULT] = &DScreenSourceCallbackStub::OnNotifyRegResultInner;
34 memberFuncMap_[NOTIFY_UNREG_RESULT] = &DScreenSourceCallbackStub::OnNotifyUnregResultInner;
35 }
36
OnRemoteRequest(uint32_t code,MessageParcel & data,MessageParcel & reply,MessageOption & option)37 int32_t DScreenSourceCallbackStub::OnRemoteRequest(uint32_t code, MessageParcel &data,
38 MessageParcel &reply, MessageOption &option)
39 {
40 std::u16string desc = DScreenSourceCallbackStub::GetDescriptor();
41 std::u16string remoteDesc = data.ReadInterfaceToken();
42 if (desc != remoteDesc) {
43 DHLOGE("DScreenSourceCallbackStub::OnRemoteRequest remoteDesc is invalid!");
44 return ERR_INVALID_DATA;
45 }
46
47 std::map<int32_t, DScreenFunc>::iterator iter = memberFuncMap_.find(code);
48 if (iter == memberFuncMap_.end()) {
49 DHLOGE("invalid request code.");
50 return IPCObjectStub::OnRemoteRequest(code, data, reply, option);
51 }
52 DScreenFunc &func = iter->second;
53 return (this->*func)(data, reply, option);
54 }
55
OnNotifyRegResultInner(MessageParcel & data,MessageParcel & reply,MessageOption & option)56 int32_t DScreenSourceCallbackStub::OnNotifyRegResultInner(MessageParcel &data, MessageParcel &reply,
57 MessageOption &option)
58 {
59 (void)reply;
60 (void)option;
61 std::string devId = data.ReadString();
62 std::string dhId = data.ReadString();
63 std::string reqId = data.ReadString();
64 int32_t status = data.ReadInt32();
65 std::string resultData = data.ReadString();
66 if (!CheckParams(devId, dhId, reqId, resultData)) {
67 DHLOGE("OnNotifyRegResultInner error: Invalid parameter.");
68 return ERR_DH_SCREEN_INPUT_PARAM_INVALID;
69 }
70 int32_t ret = OnNotifyRegResult(devId, dhId, reqId, status, resultData);
71 return ret;
72 }
73
OnNotifyUnregResultInner(MessageParcel & data,MessageParcel & reply,MessageOption & option)74 int32_t DScreenSourceCallbackStub::OnNotifyUnregResultInner(MessageParcel &data, MessageParcel &reply,
75 MessageOption &option)
76 {
77 (void)reply;
78 (void)option;
79 std::string devId = data.ReadString();
80 std::string dhId = data.ReadString();
81 std::string reqId = data.ReadString();
82 int32_t status = data.ReadInt32();
83 std::string resultData = data.ReadString();
84 if (!CheckParams(devId, dhId, reqId, resultData)) {
85 DHLOGE("OnNotifyUnregResultInner error: Invalid parameter.");
86 return ERR_DH_SCREEN_INPUT_PARAM_INVALID;
87 }
88 int32_t ret = OnNotifyUnregResult(devId, dhId, reqId, status, resultData);
89 return ret;
90 }
91
CheckParams(const std::string & devId,const std::string & dhId,const std::string & reqId,const std::string & resultData) const92 bool DScreenSourceCallbackStub::CheckParams(const std::string &devId, const std::string &dhId,
93 const std::string &reqId, const std::string &resultData) const
94 {
95 if (devId.empty() || devId.size() > DID_MAX_SIZE || dhId.empty() || dhId.size() > DID_MAX_SIZE) {
96 DHLOGE("DScreenSourceCallbackStub CheckParams devId or dhId is invalid.");
97 return false;
98 }
99 if (reqId.empty() || reqId.size() > DID_MAX_SIZE || resultData.empty() || resultData.size() > PARAM_MAX_SIZE) {
100 DHLOGE("DScreenSourceCallbackStub CheckParams reqId or resultData is invalid.");
101 return false;
102 }
103 return true;
104 }
105 }
106 }