Keyple Util C++ Library - 2.4.0
Component of the Keyple C++ middleware
HexUtil.cpp
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11 * SPDX-License-Identifier: EPL-2.0 *
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13
14#include "keyple/core/util/HexUtil.hpp"
15
16#include <sstream>
17#include <string>
18#include <vector>
19
20#include "keyple/core/util/cpp/exception/StringIndexOutOfBoundsException.hpp"
21
22namespace keyple {
23namespace core {
24namespace util {
25
26using keyple::core::util::cpp::exception::StringIndexOutOfBoundsException;
27
28const std::vector<std::string> HexUtil::mByteToHex
29 = {"00", "01", "02", "03", "04", "05", "06", "07", "08", "09", "0A", "0B",
30 "0C", "0D", "0E", "0F", "10", "11", "12", "13", "14", "15", "16", "17",
31 "18", "19", "1A", "1B", "1C", "1D", "1E", "1F", "20", "21", "22", "23",
32 "24", "25", "26", "27", "28", "29", "2A", "2B", "2C", "2D", "2E", "2F",
33 "30", "31", "32", "33", "34", "35", "36", "37", "38", "39", "3A", "3B",
34 "3C", "3D", "3E", "3F", "40", "41", "42", "43", "44", "45", "46", "47",
35 "48", "49", "4A", "4B", "4C", "4D", "4E", "4F", "50", "51", "52", "53",
36 "54", "55", "56", "57", "58", "59", "5A", "5B", "5C", "5D", "5E", "5F",
37 "60", "61", "62", "63", "64", "65", "66", "67", "68", "69", "6A", "6B",
38 "6C", "6D", "6E", "6F", "70", "71", "72", "73", "74", "75", "76", "77",
39 "78", "79", "7A", "7B", "7C", "7D", "7E", "7F", "80", "81", "82", "83",
40 "84", "85", "86", "87", "88", "89", "8A", "8B", "8C", "8D", "8E", "8F",
41 "90", "91", "92", "93", "94", "95", "96", "97", "98", "99", "9A", "9B",
42 "9C", "9D", "9E", "9F", "A0", "A1", "A2", "A3", "A4", "A5", "A6", "A7",
43 "A8", "A9", "AA", "AB", "AC", "AD", "AE", "AF", "B0", "B1", "B2", "B3",
44 "B4", "B5", "B6", "B7", "B8", "B9", "BA", "BB", "BC", "BD", "BE", "BF",
45 "C0", "C1", "C2", "C3", "C4", "C5", "C6", "C7", "C8", "C9", "CA", "CB",
46 "CC", "CD", "CE", "CF", "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
47 "D8", "D9", "DA", "DB", "DC", "DD", "DE", "DF", "E0", "E1", "E2", "E3",
48 "E4", "E5", "E6", "E7", "E8", "E9", "EA", "EB", "EC", "ED", "EE", "EF",
49 "F0", "F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8", "F9", "FA", "FB",
50 "FC", "FD", "FE", "FF"};
51
52const std::vector<uint8_t> HexUtil::mHexToNibble = {
53 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
54 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
55 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
56 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
57 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0xFF, 0xFF,
58 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0xFF,
59 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
60 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
61 0xFF, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
62 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
63 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
64 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
65 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
66 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
67 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
68 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
69 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
70 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
71 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
72 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
73 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
74 0xFF, 0xFF, 0xFF, 0xFF,
75};
76
77HexUtil::HexUtil()
78{
79}
80
81bool
82HexUtil::isValid(const std::string& hex)
83{
84 if (hex.length() == 0 || hex.length() % 2 != 0) {
85 return false;
86 }
87
88 for (int i = 0; i < static_cast<int>(hex.size()); i++) {
89 if (mHexToNibble[hex.at(i)] == 0xFF) {
90 return false;
91 }
92 }
93
94 return true;
95}
96
97const std::vector<uint8_t>
98HexUtil::toByteArray(const std::string& hex)
99{
100 std::vector<uint8_t> tab(hex.size() / 2);
101
102 if (hex.length() % 2) {
103 throw StringIndexOutOfBoundsException("string has odd length");
104 }
105
106 for (int i = 0; i < static_cast<int>(hex.length()); i += 2) {
107 tab[i / 2]
108 = ((mHexToNibble[hex.at(i)] << 4)
109 + (mHexToNibble[hex.at(i + 1)] & 0xFF));
110 }
111
112 return tab;
113}
114
115uint8_t
116HexUtil::toByte(const std::string& hex)
117{
118 uint8_t val = 0;
119
120 for (int i = 0; i < static_cast<int>(hex.length()); i++) {
121 val <<= 4;
122 val |= (mHexToNibble[hex.at(i)] & 0xFF);
123 }
124
125 return val;
126}
127
128uint16_t
129HexUtil::toShort(const std::string& hex)
130{
131 uint16_t val = 0;
132
133 for (int i = 0; i < static_cast<int>(hex.length()); i++) {
134 val <<= 4;
135 val |= (mHexToNibble[hex.at(i)] & 0xFF);
136 }
137
138 return val;
139}
140
141uint32_t
142HexUtil::toInt(const std::string& hex)
143{
144 uint32_t val = 0;
145
146 for (int i = 0; i < static_cast<int>(hex.length()); i++) {
147 val <<= 4;
148 val |= (mHexToNibble[hex.at(i)] & 0xFF);
149 }
150
151 return val;
152}
153
154uint64_t
155HexUtil::toLong(const std::string& hex)
156{
157 uint64_t val = 0;
158
159 for (int i = 0; i < static_cast<int>(hex.length()); i++) {
160 val <<= 4;
161 val |= (mHexToNibble[hex.at(i)] & 0xFF);
162 }
163
164 return val;
165}
166
167const std::string
168HexUtil::toHex(const std::vector<uint8_t>& tab)
169{
170 std::stringstream ss;
171
172 for (const auto& b : tab) {
173 ss << (mByteToHex[b & 0xFF]);
174 }
175
176 return ss.str();
177}
178
179const std::string
180HexUtil::toHex(const uint8_t val)
181{
182 return mByteToHex[val & 0xFF];
183}
184
185const std::string
186HexUtil::toHex(const uint16_t val)
187{
188 if ((val & 0xFF00) == 0) {
189 return mByteToHex[val & 0xFF];
190 }
191
192 return mByteToHex[val >> 8 & 0xFF] + mByteToHex[val & 0xFF];
193}
194
195const std::string
196HexUtil::toHex(const uint32_t val)
197{
198 if ((val & 0xFFFFFF00) == 0) {
199 return mByteToHex[val & 0xFF];
200 } else if ((val & 0xFFFF0000) == 0) {
201 return mByteToHex[val >> 8 & 0xFF] + mByteToHex[val & 0xFF];
202 } else if ((val & 0xFF000000) == 0) {
203 return mByteToHex[val >> 16 & 0xFF] + mByteToHex[val >> 8 & 0xFF]
204 + mByteToHex[val & 0xFF];
205 }
206
207 return mByteToHex[val >> 24 & 0xFF] + mByteToHex[val >> 16 & 0xFF]
208 + mByteToHex[val >> 8 & 0xFF] + mByteToHex[val & 0xFF];
209}
210
211const std::string
212HexUtil::toHex(const uint64_t val)
213{
214 if ((val & 0xFFFFFFFFFFFFFF00L) == 0) {
215 return mByteToHex[static_cast<int>((val & 0xFF))];
216 } else if ((val & 0xFFFFFFFFFFFF0000L) == 0) {
217 return mByteToHex[static_cast<int>((val >> 8 & 0xFF))]
218 + mByteToHex[static_cast<int>((val & 0xFF))];
219 } else if ((val & 0xFFFFFFFFFF000000L) == 0) {
220 return mByteToHex[static_cast<int>((val >> 16 & 0xFF))]
221 + mByteToHex[static_cast<int>((val >> 8 & 0xFF))]
222 + mByteToHex[static_cast<int>((val & 0xFF))];
223 } else if ((val & 0xFFFFFFFF00000000L) == 0) {
224 return mByteToHex[static_cast<int>((val >> 24 & 0xFF))]
225 + mByteToHex[static_cast<int>((val >> 16 & 0xFF))]
226 + mByteToHex[static_cast<int>((val >> 8 & 0xFF))]
227 + mByteToHex[static_cast<int>((val & 0xFF))];
228 } else if ((val & 0xFFFFFF0000000000L) == 0) {
229 return mByteToHex[static_cast<int>((val >> 32 & 0xFF))]
230 + mByteToHex[static_cast<int>((val >> 24 & 0xFF))]
231 + mByteToHex[static_cast<int>((val >> 16 & 0xFF))]
232 + mByteToHex[static_cast<int>((val >> 8 & 0xFF))]
233 + mByteToHex[static_cast<int>((val & 0xFF))];
234 } else if ((val & 0xFFFF000000000000L) == 0) {
235 return mByteToHex[static_cast<int>((val >> 40 & 0xFF))]
236 + mByteToHex[static_cast<int>((val >> 32 & 0xFF))]
237 + mByteToHex[static_cast<int>((val >> 24 & 0xFF))]
238 + mByteToHex[static_cast<int>((val >> 16 & 0xFF))]
239 + mByteToHex[static_cast<int>((val >> 8 & 0xFF))]
240 + mByteToHex[static_cast<int>((val & 0xFF))];
241 } else if ((val & 0xFF00000000000000L) == 0) {
242 return mByteToHex[static_cast<int>((val >> 48 & 0xFF))]
243 + mByteToHex[static_cast<int>((val >> 40 & 0xFF))]
244 + mByteToHex[static_cast<int>((val >> 32 & 0xFF))]
245 + mByteToHex[static_cast<int>((val >> 24 & 0xFF))]
246 + mByteToHex[static_cast<int>((val >> 16 & 0xFF))]
247 + mByteToHex[static_cast<int>((val >> 8 & 0xFF))]
248 + mByteToHex[static_cast<int>((val & 0xFF))];
249 }
250
251 return mByteToHex[static_cast<int>((val >> 56 & 0xFF))]
252 + mByteToHex[static_cast<int>((val >> 48 & 0xFF))]
253 + mByteToHex[static_cast<int>((val >> 40 & 0xFF))]
254 + mByteToHex[static_cast<int>((val >> 32 & 0xFF))]
255 + mByteToHex[static_cast<int>((val >> 24 & 0xFF))]
256 + mByteToHex[static_cast<int>((val >> 16 & 0xFF))]
257 + mByteToHex[static_cast<int>((val >> 8 & 0xFF))]
258 + mByteToHex[static_cast<int>((val & 0xFF))];
259}
260
261} /* namespace util */
262} /* namespace core */
263} /* namespace keyple */
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