/QingTingFanBianYi/src/com/alibaba/fastjson/util/Base64.java

https://gitlab.com/qt-prometheus/qt-prometheus · Java · 373 lines · 362 code · 7 blank · 4 comment · 70 complexity · f0b45ee0d4453cf1a9a98d14f062782d MD5 · raw file 

    

  1. package com.alibaba.fastjson.util;
    2. 

  2. 

  3. import java.util.Arrays;
    4. 

  4. 

  5. public class Base64
    6. 

  6. {
    7. 

  7.   public static final char[] CA = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".toCharArray();
    8. 

  8.   public static final int[] IA = new int[256];
    9. 

  9. 

  10.   static
    11. 

  11.   {
    12. 

  12.     Arrays.fill(IA, -1);
    13. 

  13.     int i = 0;
    14. 

  14.     int j = CA.length;
    15. 

  15.     while (i < j)
    16. 

  16.     {
    17. 

  17.       IA[CA[i]] = i;
    18. 

  18.       i += 1;
    19. 

  19.     }
    20. 

  20.     IA[61] = 0;
    21. 

  21.   }
    22. 

  22. 

  23.   public static final byte[] decodeFast(String paramString)
    24. 

  24.   {
    25. 

  25.     int m = paramString.length();
    26. 

  26.     if (m == 0)
    27. 

  27.       return new byte[0];
    28. 

  28.     int i = 0;
    29. 

  29.     int j = m - 1;
    30. 

  30.     int n;
    31. 

  31.     while (true)
    32. 

  32.     {
    33. 

  33.       n = j;
    34. 

  34.       if (i >= j)
    35. 

  35.         break;
    36. 

  36.       n = j;
    37. 

  37.       if (IA[(paramString.charAt(i) & 0xFF)] >= 0)
    38. 

  38.         break;
    39. 

  39.       i += 1;
    40. 

  40.     }
    41. 

  41.     while ((n > 0) && (IA[(paramString.charAt(n) & 0xFF)] < 0))
    42. 

  42.       n -= 1;
    43. 

  43.     int k;
    44. 

  44.     int i2;
    45. 

  45.     label151: int i1;
    46. 

  46.     label157: int i3;
    47. 

  47.     byte[] arrayOfByte;
    48. 

  48.     if (paramString.charAt(n) == '=')
    49. 

  49.       if (paramString.charAt(n - 1) == '=')
    50. 

  50.       {
    51. 

  51.         k = 2;
    52. 

  52.         i2 = n - i + 1;
    53. 

  53.         if (m <= 76)
    54. 

  54.           break label403;
    55. 

  55.         if (paramString.charAt(76) != '\r')
    56. 

  56.           break label397;
    57. 

  57.         j = i2 / 78;
    58. 

  58.         i1 = j << 1;
    59. 

  59.         i3 = ((i2 - i1) * 6 >> 3) - k;
    60. 

  60.         arrayOfByte = new byte[i3];
    61. 

  61.         m = 0;
    62. 

  62.         int i4 = i3 / 3;
    63. 

  63.         i2 = 0;
    64. 

  64.         j = i;
    65. 

  65.         i = i2;
    66. 

  66.         label195: if (i >= i4 * 3)
    67. 

  67.           break label409;
    68. 

  68.         int[] arrayOfInt = IA;
    69. 

  69.         int i5 = j + 1;
    70. 

  70.         i2 = arrayOfInt[paramString.charAt(j)];
    71. 

  71.         arrayOfInt = IA;
    72. 

  72.         j = i5 + 1;
    73. 

  73.         i5 = arrayOfInt[paramString.charAt(i5)];
    74. 

  74.         arrayOfInt = IA;
    75. 

  75.         int i6 = j + 1;
    76. 

  76.         int i7 = arrayOfInt[paramString.charAt(j)];
    77. 

  77.         arrayOfInt = IA;
    78. 

  78.         j = i6 + 1;
    79. 

  79.         i5 = i2 << 18 | i5 << 12 | i7 << 6 | arrayOfInt[paramString.charAt(i6)];
    80. 

  80.         i6 = i + 1;
    81. 

  81.         arrayOfByte[i] = ((byte)(i5 >> 16));
    82. 

  82.         i2 = i6 + 1;
    83. 

  83.         arrayOfByte[i6] = ((byte)(i5 >> 8));
    84. 

  84.         arrayOfByte[i2] = ((byte)i5);
    85. 

  85.         i = m;
    86. 

  86.         if (i1 <= 0)
    87. 

  87.           break label519;
    88. 

  88.         m += 1;
    89. 

  89.         i = m;
    90. 

  90.         if (m != 19)
    91. 

  91.           break label519;
    92. 

  92.         i = j + 2;
    93. 

  93.         m = 0;
    94. 

  94.       }
    95. 

  95.     while (true)
    96. 

  96.     {
    97. 

  97.       i2 += 1;
    98. 

  98.       j = i;
    99. 

  99.       i = i2;
    100. 

  100.       break label195;
    101. 

  101.       k = 1;
    102. 

  102.       break;
    103. 

  103.       k = 0;
    104. 

  104.       break;
    105. 

  105.       label397: j = 0;
    106. 

  106.       break label151;
    107. 

  107.       label403: i1 = 0;
    108. 

  108.       break label157;
    109. 

  109.       label409: i1 = i;
    110. 

  110.       i1 = j;
    111. 

  111.       if (i < i3)
    112. 

  112.       {
    113. 

  113.         m = 0;
    114. 

  114.         i1 = 0;
    115. 

  115.         while (j <= n - k)
    116. 

  116.         {
    117. 

  117.           m |= IA[paramString.charAt(j)] << 18 - i1 * 6;
    118. 

  118.           i1 += 1;
    119. 

  119.           j += 1;
    120. 

  120.         }
    121. 

  121.         k = 16;
    122. 

  122.         while (true)
    123. 

  123.         {
    124. 

  124.           i1 = i;
    125. 

  125.           i1 = j;
    126. 

  126.           if (i >= i3)
    127. 

  127.             break;
    128. 

  128.           arrayOfByte[i] = ((byte)(m >> k));
    129. 

  129.           k -= 8;
    130. 

  130.           i += 1;
    131. 

  131.         }
    132. 

  132.       }
    133. 

  133.       return arrayOfByte;
    134. 

  134.       label519: m = i;
    135. 

  135.       i = j;
    136. 

  136.     }
    137. 

  137.   }
    138. 

  138. 

  139.   public static final byte[] decodeFast(String paramString, int paramInt1, int paramInt2)
    140. 

  140.   {
    141. 

  141.     if (paramInt2 == 0)
    142. 

  142.       return new byte[0];
    143. 

  143.     int i = paramInt1;
    144. 

  144.     int j = paramInt1 + paramInt2 - 1;
    145. 

  145.     paramInt1 = i;
    146. 

  146.     int k;
    147. 

  147.     while (true)
    148. 

  148.     {
    149. 

  149.       k = j;
    150. 

  150.       if (paramInt1 >= j)
    151. 

  151.         break;
    152. 

  152.       k = j;
    153. 

  153.       if (IA[paramString.charAt(paramInt1)] >= 0)
    154. 

  154.         break;
    155. 

  155.       paramInt1 += 1;
    156. 

  156.     }
    157. 

  157.     while ((k > 0) && (IA[paramString.charAt(k)] < 0))
    158. 

  158.       k -= 1;
    159. 

  159.     label139: int m;
    160. 

  160.     label144: int i1;
    161. 

  161.     byte[] arrayOfByte;
    162. 

  162.     int n;
    163. 

  163.     if (paramString.charAt(k) == '=')
    164. 

  164.       if (paramString.charAt(k - 1) == '=')
    165. 

  165.       {
    166. 

  166.         i = 2;
    167. 

  167.         j = k - paramInt1 + 1;
    168. 

  168.         if (paramInt2 <= 76)
    169. 

  169.           break label388;
    170. 

  170.         if (paramString.charAt(76) != '\r')
    171. 

  171.           break label383;
    172. 

  172.         paramInt2 = j / 78;
    173. 

  173.         m = paramInt2 << 1;
    174. 

  174.         i1 = ((j - m) * 6 >> 3) - i;
    175. 

  175.         arrayOfByte = new byte[i1];
    176. 

  176.         j = 0;
    177. 

  177.         int i2 = i1 / 3;
    178. 

  178.         n = 0;
    179. 

  179.         paramInt2 = paramInt1;
    180. 

  180.         paramInt1 = n;
    181. 

  181.         label181: if (paramInt1 >= i2 * 3)
    182. 

  182.           break label394;
    183. 

  183.         int[] arrayOfInt = IA;
    184. 

  184.         int i3 = paramInt2 + 1;
    185. 

  185.         n = arrayOfInt[paramString.charAt(paramInt2)];
    186. 

  186.         arrayOfInt = IA;
    187. 

  187.         paramInt2 = i3 + 1;
    188. 

  188.         i3 = arrayOfInt[paramString.charAt(i3)];
    189. 

  189.         arrayOfInt = IA;
    190. 

  190.         int i4 = paramInt2 + 1;
    191. 

  191.         int i5 = arrayOfInt[paramString.charAt(paramInt2)];
    192. 

  192.         arrayOfInt = IA;
    193. 

  193.         paramInt2 = i4 + 1;
    194. 

  194.         i3 = n << 18 | i3 << 12 | i5 << 6 | arrayOfInt[paramString.charAt(i4)];
    195. 

  195.         i4 = paramInt1 + 1;
    196. 

  196.         arrayOfByte[paramInt1] = ((byte)(i3 >> 16));
    197. 

  197.         n = i4 + 1;
    198. 

  198.         arrayOfByte[i4] = ((byte)(i3 >> 8));
    199. 

  199.         arrayOfByte[n] = ((byte)i3);
    200. 

  200.         paramInt1 = j;
    201. 

  201.         if (m <= 0)
    202. 

  202.           break label498;
    203. 

  203.         j += 1;
    204. 

  204.         paramInt1 = j;
    205. 

  205.         if (j != 19)
    206. 

  206.           break label498;
    207. 

  207.         paramInt1 = paramInt2 + 2;
    208. 

  208.         j = 0;
    209. 

  209.       }
    210. 

  210.     while (true)
    211. 

  211.     {
    212. 

  212.       n += 1;
    213. 

  213.       paramInt2 = paramInt1;
    214. 

  214.       paramInt1 = n;
    215. 

  215.       break label181;
    216. 

  216.       i = 1;
    217. 

  217.       break;
    218. 

  218.       i = 0;
    219. 

  219.       break;
    220. 

  220.       label383: paramInt2 = 0;
    221. 

  221.       break label139;
    222. 

  222.       label388: m = 0;
    223. 

  223.       break label144;
    224. 

  224.       label394: m = paramInt1;
    225. 

  225.       m = paramInt2;
    226. 

  226.       if (paramInt1 < i1)
    227. 

  227.       {
    228. 

  228.         j = 0;
    229. 

  229.         m = 0;
    230. 

  230.         while (paramInt2 <= k - i)
    231. 

  231.         {
    232. 

  232.           j |= IA[paramString.charAt(paramInt2)] << 18 - m * 6;
    233. 

  233.           m += 1;
    234. 

  234.           paramInt2 += 1;
    235. 

  235.         }
    236. 

  236.         i = 16;
    237. 

  237.         while (true)
    238. 

  238.         {
    239. 

  239.           m = paramInt1;
    240. 

  240.           m = paramInt2;
    241. 

  241.           if (paramInt1 >= i1)
    242. 

  242.             break;
    243. 

  243.           arrayOfByte[paramInt1] = ((byte)(j >> i));
    244. 

  244.           i -= 8;
    245. 

  245.           paramInt1 += 1;
    246. 

  246.         }
    247. 

  247.       }
    248. 

  248.       return arrayOfByte;
    249. 

  249.       label498: j = paramInt1;
    250. 

  250.       paramInt1 = paramInt2;
    251. 

  251.     }
    252. 

  252.   }
    253. 

  253. 

  254.   public static final byte[] decodeFast(char[] paramArrayOfChar, int paramInt1, int paramInt2)
    255. 

  255.   {
    256. 

  256.     if (paramInt2 == 0)
    257. 

  257.       return new byte[0];
    258. 

  258.     int i = paramInt1;
    259. 

  259.     int j = paramInt1 + paramInt2 - 1;
    260. 

  260.     paramInt1 = i;
    261. 

  261.     int k;
    262. 

  262.     while (true)
    263. 

  263.     {
    264. 

  264.       k = j;
    265. 

  265.       if (paramInt1 >= j)
    266. 

  266.         break;
    267. 

  267.       k = j;
    268. 

  268.       if (IA[paramArrayOfChar[paramInt1]] >= 0)
    269. 

  269.         break;
    270. 

  270.       paramInt1 += 1;
    271. 

  271.     }
    272. 

  272.     while ((k > 0) && (IA[paramArrayOfChar[k]] < 0))
    273. 

  273.       k -= 1;
    274. 

  274.     label129: int m;
    275. 

  275.     label134: int i1;
    276. 

  276.     byte[] arrayOfByte;
    277. 

  277.     int n;
    278. 

  278.     if (paramArrayOfChar[k] == '=')
    279. 

  279.       if (paramArrayOfChar[(k - 1)] == '=')
    280. 

  280.       {
    281. 

  281.         i = 2;
    282. 

  282.         j = k - paramInt1 + 1;
    283. 

  283.         if (paramInt2 <= 76)
    284. 

  284.           break label370;
    285. 

  285.         if (paramArrayOfChar[76] != '\r')
    286. 

  286.           break label365;
    287. 

  287.         paramInt2 = j / 78;
    288. 

  288.         m = paramInt2 << 1;
    289. 

  289.         i1 = ((j - m) * 6 >> 3) - i;
    290. 

  290.         arrayOfByte = new byte[i1];
    291. 

  291.         j = 0;
    292. 

  292.         int i2 = i1 / 3;
    293. 

  293.         n = 0;
    294. 

  294.         paramInt2 = paramInt1;
    295. 

  295.         paramInt1 = n;
    296. 

  296.         label171: if (paramInt1 >= i2 * 3)
    297. 

  297.           break label376;
    298. 

  298.         int[] arrayOfInt = IA;
    299. 

  299.         int i3 = paramInt2 + 1;
    300. 

  300.         n = arrayOfInt[paramArrayOfChar[paramInt2]];
    301. 

  301.         arrayOfInt = IA;
    302. 

  302.         paramInt2 = i3 + 1;
    303. 

  303.         i3 = arrayOfInt[paramArrayOfChar[i3]];
    304. 

  304.         arrayOfInt = IA;
    305. 

  305.         int i4 = paramInt2 + 1;
    306. 

  306.         int i5 = arrayOfInt[paramArrayOfChar[paramInt2]];
    307. 

  307.         arrayOfInt = IA;
    308. 

  308.         paramInt2 = i4 + 1;
    309. 

  309.         i3 = n << 18 | i3 << 12 | i5 << 6 | arrayOfInt[paramArrayOfChar[i4]];
    310. 

  310.         i4 = paramInt1 + 1;
    311. 

  311.         arrayOfByte[paramInt1] = ((byte)(i3 >> 16));
    312. 

  312.         n = i4 + 1;
    313. 

  313.         arrayOfByte[i4] = ((byte)(i3 >> 8));
    314. 

  314.         arrayOfByte[n] = ((byte)i3);
    315. 

  315.         paramInt1 = j;
    316. 

  316.         if (m <= 0)
    317. 

  317.           break label478;
    318. 

  318.         j += 1;
    319. 

  319.         paramInt1 = j;
    320. 

  320.         if (j != 19)
    321. 

  321.           break label478;
    322. 

  322.         paramInt1 = paramInt2 + 2;
    323. 

  323.         j = 0;
    324. 

  324.       }
    325. 

  325.     while (true)
    326. 

  326.     {
    327. 

  327.       n += 1;
    328. 

  328.       paramInt2 = paramInt1;
    329. 

  329.       paramInt1 = n;
    330. 

  330.       break label171;
    331. 

  331.       i = 1;
    332. 

  332.       break;
    333. 

  333.       i = 0;
    334. 

  334.       break;
    335. 

  335.       label365: paramInt2 = 0;
    336. 

  336.       break label129;
    337. 

  337.       label370: m = 0;
    338. 

  338.       break label134;
    339. 

  339.       label376: m = paramInt1;
    340. 

  340.       m = paramInt2;
    341. 

  341.       if (paramInt1 < i1)
    342. 

  342.       {
    343. 

  343.         j = 0;
    344. 

  344.         m = 0;
    345. 

  345.         while (paramInt2 <= k - i)
    346. 

  346.         {
    347. 

  347.           j |= IA[paramArrayOfChar[paramInt2]] << 18 - m * 6;
    348. 

  348.           m += 1;
    349. 

  349.           paramInt2 += 1;
    350. 

  350.         }
    351. 

  351.         i = 16;
    352. 

  352.         while (true)
    353. 

  353.         {
    354. 

  354.           m = paramInt1;
    355. 

  355.           m = paramInt2;
    356. 

  356.           if (paramInt1 >= i1)
    357. 

  357.             break;
    358. 

  358.           arrayOfByte[paramInt1] = ((byte)(j >> i));
    359. 

  359.           i -= 8;
    360. 

  360.           paramInt1 += 1;
    361. 

  361.         }
    362. 

  362.       }
    363. 

  363.       return arrayOfByte;
    364. 

  364.       label478: j = paramInt1;
    365. 

  365.       paramInt1 = paramInt2;
    366. 

  366.     }
    367. 

  367.   }
    368. 

  368. }
    369. 

  369. 

  370. /* Location:           C:\Users\User\dex2jar-2.0\dex\qting\classes-dex2jar.jar
    371. 

  371.  * Qualified Name:     com.alibaba.fastjson.util.Base64
    372. 

  372.  * JD-Core Version:    0.6.2
    373. 

  373.  */
    374.