43 static std::string
const base64_chars =
44 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
45 "abcdefghijklmnopqrstuvwxyz"
48 static inline bool is_base64(
unsigned char c) {
50 (c >= 47 && c <= 57) ||
51 (c >= 65 && c <= 90) ||
52 (c >= 97 && c <= 122));
55 inline std::string base64_encode(
unsigned char const * bytes_to_encode,
unsigned
61 unsigned char char_array_3[3];
62 unsigned char char_array_4[4];
65 char_array_3[i++] = *(bytes_to_encode++);
67 char_array_4[0] = (char_array_3[0] & 0xfc) >> 2;
68 char_array_4[1] = ((char_array_3[0] & 0x03) << 4) +
69 ((char_array_3[1] & 0xf0) >> 4);
70 char_array_4[2] = ((char_array_3[1] & 0x0f) << 2) +
71 ((char_array_3[2] & 0xc0) >> 6);
72 char_array_4[3] = char_array_3[2] & 0x3f;
74 for(i = 0; (i <4) ; i++) {
75 ret += base64_chars[char_array_4[i]];
82 for(j = i; j < 3; j++) {
83 char_array_3[j] =
'\0';
86 char_array_4[0] = (char_array_3[0] & 0xfc) >> 2;
87 char_array_4[1] = ((char_array_3[0] & 0x03) << 4) +
88 ((char_array_3[1] & 0xf0) >> 4);
89 char_array_4[2] = ((char_array_3[1] & 0x0f) << 2) +
90 ((char_array_3[2] & 0xc0) >> 6);
91 char_array_4[3] = char_array_3[2] & 0x3f;
93 for (j = 0; (j < i + 1); j++) {
94 ret += base64_chars[char_array_4[j]];
105 inline std::string base64_encode(std::string
const & data) {
106 return base64_encode(reinterpret_cast<const unsigned char *>(data.data()),data.size());
109 inline std::string base64_decode(std::string
const & encoded_string) {
110 size_t in_len = encoded_string.size();
114 unsigned char char_array_4[4], char_array_3[3];
117 while (in_len-- && ( encoded_string[in_] !=
'=') && is_base64(encoded_string[in_])) {
118 char_array_4[i++] = encoded_string[in_]; in_++;
120 for (i = 0; i <4; i++) {
121 char_array_4[i] =
static_cast<unsigned char>(base64_chars.find(char_array_4[i]));
124 char_array_3[0] = (char_array_4[0] << 2) + ((char_array_4[1] & 0x30) >> 4);
125 char_array_3[1] = ((char_array_4[1] & 0xf) << 4) + ((char_array_4[2] & 0x3c) >> 2);
126 char_array_3[2] = ((char_array_4[2] & 0x3) << 6) + char_array_4[3];
128 for (i = 0; (i < 3); i++) {
129 ret += char_array_3[i];
136 for (j = i; j <4; j++)
139 for (j = 0; j <4; j++)
140 char_array_4[j] = static_cast<unsigned char>(base64_chars.find(char_array_4[j]));
142 char_array_3[0] = (char_array_4[0] << 2) + ((char_array_4[1] & 0x30) >> 4);
143 char_array_3[1] = ((char_array_4[1] & 0xf) << 4) + ((char_array_4[2] & 0x3c) >> 2);
144 char_array_3[2] = ((char_array_4[2] & 0x3) << 6) + char_array_4[3];
146 for (j = 0; (j < i - 1); j++) {
147 ret +=
static_cast<std::string::value_type
>(char_array_3[j]);
156 #endif // _BASE64_HPP_
Namespace for the WebSocket++ project.