1/*
2 * Copyright (c) 2024-2024 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#ifndef SIGNATRUETOOLS_FILE_UTILS_H
16#define SIGNATRUETOOLS_FILE_UTILS_H
17#include <string>
18#include <vector>
19#include <regex>
20#include <cassert>
21#include <sys/statfs.h>
22#include <cstdlib>
23#include <iostream>
24
25#include "thread_pool.h"
26#include "signature_tools_log.h"
27
28namespace OHOS {
29namespace SignatureTools {
30
31class FileUtils {
32public:
33    static const int NUM_TWO;
34    static const int NUM_THREE;
35    static const int NUM_FOUR;
36    static const std::string LIBS_PATH_PREFIX;
37    static constexpr int FILE_BUFFER_BLOCK = 1024 * 1024;
38    FileUtils() = delete;
39    // judge is or not empty
40    static bool  IsEmpty(std::string cs);
41    // get file suffix
42    static  std::string GetSuffix(std::string filePath);
43    // verify file type
44    static bool ValidFileType(const std::string& filePath, const std::initializer_list<std::string> types);
45    static bool IsValidFile(std::string file);
46    /**
47* write content to output file
48* @param content data to write
49* @param output  path
50* @return 0:success
51*/
52    static int Write(const std::string& content, const std::string& output);
53    /**
54* Read byte from input stream.
55*
56* @param input Input stream
57* @param ret File content
58* @return 0:success <0:error
59*/
60    static  int Read(std::ifstream& input, std::string& ret);
61    /**
62*Read byte from input file.
63*
64* @param file Which file to read
65* @param ret  byte content
66* @return 0:success <0:error
67*/
68    static int ReadFile(const std::string& path, std::string& ret);
69    /**
70     * Read byte from input file.
71     *
72     * @param file input file
73     * @param offset offset
74     * @param length length
75     * @param ret data bytes
76     * @return 0:success <0:error
77     */
78    static int ReadFileByOffsetAndLength(std::ifstream& file, size_t offset, size_t length, std::string& ret);
79    /**
80 * Read byte from input stream.
81 *
82 * @param input input stream
83 * @param offset offset
84 * @param length length
85 * @ret data bytes
86 * @return 0:success <0 :error
87 */
88    static int ReadInputByOffsetAndLength(std::ifstream& input, size_t offset, size_t length, std::string& ret);
89    /**
90 * Read byte from input stream.
91 *
92 * @param input InputStream
93 * @param length length
94 * @ret data bytes
95 * @return 0:success <0 :error
96 */
97    static int ReadInputByLength(std::ifstream& input, size_t length, std::string& ret);
98    /**
99 * Write data in file to output stream
100 *
101 * @param inFile input file path.
102 * @param out output file path.
103 * @param offset file read offset
104 * @param size file read size
105 * @return true, if write successfully.
106 */
107    static bool AppendWriteFileByOffsetToFile(std::ifstream& input, std::ofstream& out, size_t offset, size_t size);
108    static bool AppendWriteFileToFile(const std::string& inputFile, const std::string& outputFile);
109    static bool AppendWriteByteToFile(const std::string& bytes, const std::string& outputFile);
110
111    static int WriteInputToOutPut(std::ifstream& input, std::ofstream& output, size_t length);
112    static bool WriteInputToOutPut(const std::string& input, const std::string& output);
113    static bool IsSpaceEnough(const std::string& filePath, const int64_t requiredSpace);
114    /**
115* Write byte array data to output file.
116*
117* @param bytes byte array data.
118* @param outFile output file path.
119* @return true, if write successfully.
120*/
121    static bool WriteByteToOutFile(const std::string& bytes, const std::string& outFile);
122    /**
123* Write byte array data to output file.
124*
125* @param bytes byte array data.
126* @param outFile output file path.
127* @return true, if write successfully.
128*/
129    static bool WriteByteToOutFile(const std::string& bytes, std::ofstream& outFile);
130    static bool WriteByteToOutFile(const std::vector<int8_t>& bytes, std::ofstream& outFile);
131    /**
132 * regex filename
133 *
134 * @param name filename
135 * @return boolean
136 */
137    static bool IsRunnableFile(const std::string& name);
138    static int64_t GetFileLen(const std::string& file);
139    static void DelDir(const std::string& file);
140};
141} // namespace SignatureTools
142} // namespace OHOS
143#endif // SIGNATRUETOOLS_FILE_UTILS_H