--- /dev/null
+/*\r
+ base64.cpp and base64.h\r
+\r
+ Copyright (C) 2004-2008 René Nyffenegger\r
+\r
+ This source code is provided 'as-is', without any express or implied\r
+ warranty. In no event will the author be held liable for any damages\r
+ arising from the use of this software.\r
+\r
+ Permission is granted to anyone to use this software for any purpose,\r
+ including commercial applications, and to alter it and redistribute it\r
+ freely, subject to the following restrictions:\r
+\r
+ 1. The origin of this source code must not be misrepresented; you must not\r
+ claim that you wrote the original source code. If you use this source code\r
+ in a product, an acknowledgment in the product documentation would be\r
+ appreciated but is not required.\r
+\r
+ 2. Altered source versions must be plainly marked as such, and must not be\r
+ misrepresented as being the original source code.\r
+\r
+ 3. This notice may not be removed or altered from any source distribution.\r
+\r
+ René Nyffenegger rene.nyffenegger@adp-gmbh.ch\r
+\r
+*/\r
+\r
+#include "base64.h"\r
+#include <iostream>\r
+\r
+static const std::string base64_chars =\r
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ"\r
+ "abcdefghijklmnopqrstuvwxyz"\r
+ "0123456789+/";\r
+\r
+\r
+static inline bool is_base64(unsigned char c) {\r
+ return (isalnum(c) || (c == '+') || (c == '/'));\r
+}\r
+\r
+std::string base64_encode(unsigned char const* bytes_to_encode, unsigned int in_len) {\r
+ std::string ret;\r
+ int i = 0;\r
+ int j = 0;\r
+ unsigned char char_array_3[3];\r
+ unsigned char char_array_4[4];\r
+\r
+ while (in_len--) {\r
+ char_array_3[i++] = *(bytes_to_encode++);\r
+ if (i == 3) {\r
+ char_array_4[0] = (char_array_3[0] & 0xfc) >> 2;\r
+ char_array_4[1] = ((char_array_3[0] & 0x03) << 4) + ((char_array_3[1] & 0xf0) >> 4);\r
+ char_array_4[2] = ((char_array_3[1] & 0x0f) << 2) + ((char_array_3[2] & 0xc0) >> 6);\r
+ char_array_4[3] = char_array_3[2] & 0x3f;\r
+\r
+ for(i = 0; (i <4) ; i++)\r
+ ret += base64_chars[char_array_4[i]];\r
+ i = 0;\r
+ }\r
+ }\r
+\r
+ if (i)\r
+ {\r
+ for(j = i; j < 3; j++)\r
+ char_array_3[j] = '\0';\r
+\r
+ char_array_4[0] = (char_array_3[0] & 0xfc) >> 2;\r
+ char_array_4[1] = ((char_array_3[0] & 0x03) << 4) + ((char_array_3[1] & 0xf0) >> 4);\r
+ char_array_4[2] = ((char_array_3[1] & 0x0f) << 2) + ((char_array_3[2] & 0xc0) >> 6);\r
+ char_array_4[3] = char_array_3[2] & 0x3f;\r
+\r
+ for (j = 0; (j < i + 1); j++)\r
+ ret += base64_chars[char_array_4[j]];\r
+\r
+ while((i++ < 3))\r
+ ret += '=';\r
+\r
+ }\r
+\r
+ return ret;\r
+\r
+}\r
+\r
+std::string base64_decode(std::string const& encoded_string) {\r
+ int in_len = encoded_string.size();\r
+ int i = 0;\r
+ int j = 0;\r
+ int in_ = 0;\r
+ unsigned char char_array_4[4], char_array_3[3];\r
+ std::string ret;\r
+\r
+ while (in_len-- && ( encoded_string[in_] != '=') && is_base64(encoded_string[in_])) {\r
+ char_array_4[i++] = encoded_string[in_]; in_++;\r
+ if (i ==4) {\r
+ for (i = 0; i <4; i++)\r
+ char_array_4[i] = base64_chars.find(char_array_4[i]);\r
+\r
+ char_array_3[0] = (char_array_4[0] << 2) + ((char_array_4[1] & 0x30) >> 4);\r
+ char_array_3[1] = ((char_array_4[1] & 0xf) << 4) + ((char_array_4[2] & 0x3c) >> 2);\r
+ char_array_3[2] = ((char_array_4[2] & 0x3) << 6) + char_array_4[3];\r
+\r
+ for (i = 0; (i < 3); i++)\r
+ ret.append (1,(char)char_array_3[i]);\r
+ i = 0;\r
+ }\r
+ }\r
+\r
+ if (i) {\r
+ for (j = i; j <4; j++)\r
+ char_array_4[j] = 0;\r
+\r
+ for (j = 0; j <4; j++)\r
+ char_array_4[j] = base64_chars.find(char_array_4[j]);\r
+\r
+ char_array_3[0] = (char_array_4[0] << 2) + ((char_array_4[1] & 0x30) >> 4);\r
+ char_array_3[1] = ((char_array_4[1] & 0xf) << 4) + ((char_array_4[2] & 0x3c) >> 2);\r
+ char_array_3[2] = ((char_array_4[2] & 0x3) << 6) + char_array_4[3];\r
+\r
+ for (j = 0; (j < i - 1); j++) ret.append (1,char_array_3[j]);\r
+ }\r
+\r
+ return ret;\r
+}\r
projects / yandexfotkisp / blobdiff