1 /*
2 * Copyright (c) 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 #ifndef SCAN_UTIL_H
17 #define SCAN_UTIL_H
18
19 #include <algorithm>
20 #include <charconv>
21 #include <iostream>
22 #include <sstream>
23 #include <list>
24 #include <vector>
25 #include <iomanip>
26 #include <regex>
27 #include <string>
28 #include "sane_info.h"
29 #include "scan_constant.h"
30 #include "scan_log.h"
31
32 namespace OHOS::Scan {
33 class ScanUtil {
34 public:
35 static ScanErrorCode ConvertErro(const SaneStatus status);
36 static bool ConvertToInt(const std::string& str, int32_t& value);
37 static bool ExtractIpAddresses(const std::string& str, std::string& ip);
38 static std::string ReplaceIpAddress(const std::string& deviceId, const std::string& newIp);
39 };
ConvertErro(const SaneStatus status)40 inline ScanErrorCode ScanUtil::ConvertErro(const SaneStatus status)
41 {
42 if (status < SANE_STATUS_NO_PERMISSION) {
43 return static_cast<ScanErrorCode> (status + E_SCAN_GOOD);
44 } else {
45 return static_cast<ScanErrorCode> (status);
46 }
47 }
ConvertToInt(const std::string & str,int32_t & value)48 inline bool ScanUtil::ConvertToInt(const std::string& str, int32_t& value)
49 {
50 auto [ptr, ec] = std::from_chars(str.data(), str.data() + str.size(), value);
51 return ec == std::errc{} && ptr == str.data() + str.size();
52 }
ExtractIpAddresses(const std::string & str,std::string & ip)53 inline bool ScanUtil::ExtractIpAddresses(const std::string& str, std::string& ip)
54 {
55 std::regex ipRegex(R"((\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\b))");
56 std::smatch match;
57 if (std::regex_search(str, match, ipRegex)) {
58 ip = match[0];
59 return true;
60 } else {
61 return false;
62 }
63 }
ReplaceIpAddress(const std::string & deviceId,const std::string & newIp)64 inline std::string ScanUtil::ReplaceIpAddress(const std::string& deviceId, const std::string& newIp)
65 {
66 std::regex ipRegex(R"((\b\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}\b))");
67 return std::regex_replace(deviceId, ipRegex, newIp);
68 }
69 } // namespace OHOS::Scan
70
71 #endif // SCAN_UTIL_H
72