1 /*
2 * Copyright (c) 2024 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 <hash/hash.h>
17 #include <fstream>
18 #include <iostream>
19 #include <sstream>
20
21 #include "util/options.h"
22 #include "util/common.h"
23 #include "util/logger.h"
24
25 namespace OHOS {
26 namespace Idl {
GenHashKey()27 bool Hash::GenHashKey()
28 {
29 FileDetailMap fileDetails;
30 if (!Preprocessor::UnitPreprocess(fileDetails)) {
31 return false;
32 }
33
34 std::string filePath = Options::GetInstance().GetOutPutFile();
35 return filePath.empty() ? FormatStdout(fileDetails) : FormatFile(fileDetails, filePath);
36 }
37
FormatStdout(const FileDetailMap & fileDetails)38 bool Hash::FormatStdout(const FileDetailMap &fileDetails)
39 {
40 std::vector<std::string> hashInfos = Hash::GetHashInfo(fileDetails);
41 if (hashInfos.empty()) {
42 return false;
43 }
44
45 for (const auto &info : hashInfos) {
46 std::cout << info << "\n";
47 }
48 return true;
49 }
50
FormatFile(const FileDetailMap & fileDetails,const std::string & filePath)51 bool Hash::FormatFile(const FileDetailMap &fileDetails, const std::string &filePath)
52 {
53 std::vector<std::string> hashInfos = Hash::GetHashInfo(fileDetails);
54 if (hashInfos.empty()) {
55 return false;
56 }
57
58 std::ofstream hashFile(filePath, std::ios::out | std::ios ::binary);
59 if (!hashFile.is_open()) {
60 Logger::E(TAG, "failed to open %s", filePath.c_str());
61 return false;
62 }
63
64 for (const auto &info : hashInfos) {
65 hashFile << info << "\n";
66 }
67
68 hashFile.close();
69 return true;
70 }
71
GetHashInfo(const FileDetailMap & fileDetails)72 std::vector<std::string> Hash::GetHashInfo(const FileDetailMap &fileDetails)
73 {
74 std::vector<std::string> hashInfos;
75 for (const auto &detail : fileDetails) {
76 size_t haskKey = 0;
77 std::stringstream hashInfo;
78 if (!Hash::GenFileHashKey(detail.second.filePath_, haskKey)) {
79 return std::vector<std::string>();
80 }
81 hashInfo << detail.first << ":" << haskKey;
82 hashInfos.push_back(hashInfo.str());
83 }
84
85 return hashInfos;
86 }
87
GenFileHashKey(const std::string & path,size_t & hashKey)88 bool Hash::GenFileHashKey(const std::string &path, size_t &hashKey)
89 {
90 std::ifstream fs(path);
91 if (!fs.is_open()) {
92 Logger::E(TAG, "invalid file path '%s'", path.c_str());
93 return false;
94 }
95
96 std::stringstream buffer;
97 buffer << fs.rdbuf();
98
99 hashKey = std::hash<std::string>()(buffer.str());
100 return true;
101 }
102 } // namespace Idl
103 } // namespace OHOS
104