1 /*
2  * Copyright (c) 2021 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 UPDATER_THREAD_H
17 #define UPDATER_THREAD_H
18 
19 #include <atomic>
20 #include <functional>
21 #include <thread>
22 #include <file_utils.h>
23 #include "curl/curl.h"
24 
25 #include "progress.h"
26 
27 namespace OHOS {
28 namespace UpdateEngine {
29 #define ENGINE_CHECK_NO_LOG(retCode, exper) \
30     if (!(retCode)) {                     \
31         exper;                            \
32     }
33 
34 constexpr uint32_t DOWNLOAD_FINISH_PERCENT = 100;
35 constexpr uint32_t DOWNLOAD_PERIOD_PERCENT = 1;
36 constexpr int32_t TIMEOUT_FOR_DOWNLOAD = 600;
37 #ifndef UPDATER_UT
38 constexpr int32_t TIMEOUT_FOR_CONNECT = 10;
39 #else
40 constexpr int32_t TIMEOUT_FOR_CONNECT = 1;
41 #endif
42 
43 class ProgressThread {
44 public:
45     ProgressThread() = default;
46     virtual ~ProgressThread();
47     static bool isNoNet_;
48     static bool isCancel_;
49 protected:
50     int32_t StartProgress();
51     void StopProgress();
52     void QuitDownloadThread();
53     void ExecuteThreadFunc();
54 
55     virtual bool ProcessThreadExecute() = 0;
56     virtual void ProcessThreadExit() = 0;
57 
58 private:
59     std::thread *pDealThread_ { nullptr };
60     std::mutex mutex_;
61     std::condition_variable condition_;
62     bool isWake_ = false;
63     bool isExitThread_ = false;
64 };
65 
66 class DownloadThread : public ProgressThread {
67 public:
68     using ProgressCallback = std::function<void (const std::string serverUrl, const std::string &fileName,
69         const Progress &progress)>;
DownloadThread(ProgressCallback callback)70     explicit DownloadThread(ProgressCallback callback) : ProgressThread(), callback_(callback) {}
~DownloadThread()71     ~DownloadThread() override
72     {
73         ProgressThread::QuitDownloadThread();
74     }
75 
76     int32_t StartDownload(const std::string &fileName, const std::string &url);
77     void StopDownload();
78 
79     static size_t GetLocalFileLength(const std::string &fileName);
80     static size_t WriteFunc(void *ptr, size_t size, size_t nmemb, const void *stream);
81     static int32_t DownloadProgress(const void *localData,
82         double dlTotal, double dlNow, double ulTotal, double ulNow);
83 
GetPackageSize()84     double GetPackageSize()
85     {
86         packageSize_ = GetLocalFileLength(downloadFileName_);
87         return static_cast<double>(packageSize_);
88     };
89 
90 protected:
91     bool ProcessThreadExecute() override;
92     void ProcessThreadExit() override;
93     int32_t DownloadCallback(uint32_t percent, UpgradeStatus status, const std::string &error);
94     static FILE* FileOpen(const std::string &fileName, const std::string &mode);
95 
96 private:
97     Progress downloadProgress_ {};
98     ProgressCallback callback_;
99     CURL *downloadHandle_ { nullptr };
100     FILE *downloadFile_ { nullptr };
101     std::string serverUrl_;
102     std::atomic<bool> exitDownload_ { false };
103     size_t packageSize_ { 1 };
104     std::string downloadFileName_;
105     bool DealAbnormal(uint32_t percent);
106 };
107 } // namespace UpdateEngine
108 } // namespace OHOS
109 #endif // UPDATER_THREAD_H
110