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- #include "Base64.h"
- using namespace Framework;
- static Framework::Text base64_chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
- "abcdefghijklmnopqrstuvwxyz"
- "0123456789+/";
- Text Framework::base64Encode(const char* data, int length)
- {
- Text result;
- int i = 0;
- int j = 0;
- unsigned char char_array_3[3];
- unsigned char char_array_4[4];
- while (length--)
- {
- char_array_3[i++] = *(data++);
- if (i == 3)
- {
- char_array_4[0] = (char_array_3[0] & 0xfc) >> 2;
- char_array_4[1]
- = (unsigned char)(((char_array_3[0] & 0x03) << 4)
- + ((char_array_3[1] & 0xf0) >> 4));
- char_array_4[2]
- = (unsigned char)(((char_array_3[1] & 0x0f) << 2)
- + ((char_array_3[2] & 0xc0) >> 6));
- char_array_4[3] = char_array_3[2] & 0x3f;
- for (i = 0; (i < 4); i++)
- result.append((char)base64_chars[char_array_4[i]]);
- i = 0;
- }
- }
- if (i)
- {
- for (j = i; j < 3; j++)
- char_array_3[j] = '\0';
- char_array_4[0] = (char_array_3[0] & 0xfc) >> 2;
- char_array_4[1] = (unsigned char)(((char_array_3[0] & 0x03) << 4)
- + ((char_array_3[1] & 0xf0) >> 4));
- char_array_4[2] = (unsigned char)(((char_array_3[1] & 0x0f) << 2)
- + ((char_array_3[2] & 0xc0) >> 6));
- char_array_4[3] = char_array_3[2] & 0x3f;
- for (j = 0; (j < i + 1); j++)
- result.append((char)base64_chars[char_array_4[j]]);
- while ((i++ < 3))
- result.append('=');
- }
- return result;
- }
- bool Framework::base64Decode(Text base64, char** data, int* length)
- {
- int i = 0;
- int j = 0;
- int k = 0;
- int l = 0;
- int n = 0;
- unsigned char char_array_4[4];
- unsigned char char_array_3[3];
- *length = 0;
- while (base64[l])
- {
- if (base64[l] == '=') break;
- if (!base64_chars.hat(base64[l])) return false;
- l++;
- }
- *length = (l * 3) / 4;
- *data = new char[*length + 1];
- while (base64[k])
- {
- char_array_4[i++] = base64[k];
- if (i == 4)
- {
- for (i = 0; i < 4; i++)
- char_array_4[i] = (unsigned char)(base64_chars.positionVon(
- char_array_4[i]));
- char_array_3[0]
- = (unsigned char)((char_array_4[0] << 2)
- + ((char_array_4[1] & 0x30) >> 4));
- char_array_3[1]
- = (unsigned char)(((char_array_4[1] & 0xf) << 4)
- + ((char_array_4[2] & 0x3c) >> 2));
- char_array_3[2] = (unsigned char)(((char_array_4[2] & 0x3) << 6)
- + char_array_4[3]);
- for (i = 0; (i < 3) && n < *length; i++)
- (*data)[n++] = char_array_3[i];
- i = 0;
- }
- k++;
- }
- if (i)
- {
- for (j = i; j < 4; j++)
- char_array_4[j] = 0;
- for (j = 0; j < 4; j++)
- char_array_4[j]
- = (unsigned char)(base64_chars.positionVon(char_array_4[j]));
- char_array_3[0] = (unsigned char)((char_array_4[0] << 2)
- + ((char_array_4[1] & 0x30) >> 4));
- char_array_3[1] = (unsigned char)(((char_array_4[1] & 0xf) << 4)
- + ((char_array_4[2] & 0x3c) >> 2));
- char_array_3[2]
- = (unsigned char)(((char_array_4[2] & 0x3) << 6) + char_array_4[3]);
- for (j = 0; (j < i - 1) && n < *length; j++)
- (*data)[n++] = char_array_3[j];
- }
- (*data)[*length] = '\0';
- return true;
- }
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