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 "zip_utils.h"
16
17 #include <regex.h>
18
19 #include "event_handler.h"
20
21 namespace OHOS {
22 namespace AppExecFwk {
23 namespace LIBZIP {
24 namespace {
25 const std::string SEPARATOR = "/";
26 const char* FILE_PATH_PATTERN = "^.*$";
27 const std::string ZIP_THREAD = "ZipThread";
28 } // namespace
29 using namespace OHOS::AppExecFwk;
30
31 std::shared_ptr<EventHandler> g_handler = nullptr;
32 std::mutex mutex;
PostTask(const InnerEvent::Callback & callback)33 void PostTask(const InnerEvent::Callback &callback)
34 {
35 std::lock_guard<std::mutex> lock(mutex);
36 if (g_handler == nullptr) {
37 auto runner = EventRunner::Create(ZIP_THREAD, ThreadMode::FFRT);
38 g_handler = std::make_shared<EventHandler>(runner);
39 }
40 g_handler->PostTask(callback);
41 }
42
GetCurrentSystemTime(void)43 struct tm *GetCurrentSystemTime(void)
44 {
45 auto tt = std::chrono::system_clock::to_time_t(std::chrono::system_clock::now());
46 struct tm *time = localtime(&tt);
47 return time;
48 }
49
StartsWith(const std::string & str,const std::string & searchFor)50 bool StartsWith(const std::string &str, const std::string &searchFor)
51 {
52 if (searchFor.size() > str.size()) {
53 return false;
54 }
55
56 std::string source = str.substr(0, searchFor.size());
57 return source == searchFor;
58 }
EndsWith(const std::string & str,const std::string & searchFor)59 bool EndsWith(const std::string &str, const std::string &searchFor)
60 {
61 if (searchFor.size() > str.size()) {
62 return false;
63 }
64
65 std::string source = str.substr(str.size() - searchFor.size(), searchFor.size());
66 return source == searchFor;
67 }
68
FilePathCheckValid(const std::string & str)69 bool FilePathCheckValid(const std::string &str)
70 {
71 if (str.empty()) {
72 return false;
73 }
74 regex_t regex;
75 if (regcomp(®ex, FILE_PATH_PATTERN, REG_EXTENDED | REG_NOSUB) != 0) {
76 return false;
77 }
78 int32_t ret = regexec(®ex, str.c_str(), 0, NULL, 0);
79 if (ret != 0) {
80 regfree(®ex);
81 return false;
82 }
83 regfree(®ex);
84 return true;
85 }
86
87 } // namespace LIBZIP
88 } // namespace AppExecFwk
89 } // namespace OHOS
90