+
+static inline bool is_base64(U8 c) {
+ return (isalnum(c) || (c == '+') || (c == '/'));
+}
+
+std::string functions::encodeBase64(const U8* buf, unsigned int bufLen) {
+ std::string ret;
+ int i = 0;
+ int j = 0;
+ U8 char_array_3[3];
+ U8 char_array_4[4];
+
+ while (bufLen--) {
+ char_array_3[i++] = *(buf++);
+ if (i == 3) {
+ char_array_4[0] = (char_array_3[0] & 0xfc) >> 2;
+ char_array_4[1] = ((char_array_3[0] & 0x03) << 4) + ((char_array_3[1] & 0xf0) >> 4);
+ char_array_4[2] = ((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++)
+ ret += 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] = ((char_array_3[0] & 0x03) << 4) + ((char_array_3[1] & 0xf0) >> 4);
+ char_array_4[2] = ((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++)
+ ret += base64_chars[char_array_4[j]];
+
+ while((i++ < 3))
+ ret += '=';
+ }
+
+ return ret;
+}
+
+std::string functions::decodeBase64(const std::string & encodedString) {
+ int in_len = encodedString.size();
+ int i = 0;
+ int j = 0;
+ int in_ = 0;
+ U8 char_array_4[4], char_array_3[3];
+ std::string ret;
+
+ while (in_len-- && ( encodedString[in_] != '=') && is_base64(encodedString[in_])) {
+ char_array_4[i++] = encodedString[in_]; in_++;
+ if (i ==4) {
+ for (i = 0; i <4; i++)
+ char_array_4[i] = base64_chars.find(char_array_4[i]);
+
+ char_array_3[0] = (char_array_4[0] << 2) + ((char_array_4[1] & 0x30) >> 4);
+ char_array_3[1] = ((char_array_4[1] & 0xf) << 4) + ((char_array_4[2] & 0x3c) >> 2);
+ char_array_3[2] = ((char_array_4[2] & 0x3) << 6) + char_array_4[3];
+
+ for (i = 0; (i < 3); i++)
+ ret += char_array_3[i];
+ i = 0;
+ }
+ }
+
+ if (i) {
+ for (j = i; j <4; j++)
+ char_array_4[j] = 0;
+
+ for (j = 0; j <4; j++)
+ char_array_4[j] = base64_chars.find(char_array_4[j]);
+
+ char_array_3[0] = (char_array_4[0] << 2) + ((char_array_4[1] & 0x30) >> 4);
+ char_array_3[1] = ((char_array_4[1] & 0xf) << 4) + ((char_array_4[2] & 0x3c) >> 2);
+ char_array_3[2] = ((char_array_4[2] & 0x3) << 6) + char_array_4[3];
+
+ for (j = 0; (j < i - 1); j++) ret += char_array_3[j];
+ }
+
+ return ret;
+}
+
+bool functions::getContentFromFile(const std::string &pathfile, std::string &content) noexcept(false) {
+
+ std::ifstream inFile(pathfile.c_str(), std::ifstream::in);
+ if(!inFile.good()) {
+ throw RuntimeException(anna::functions::asString("Unable to open file '%s'", pathfile.c_str()), ANNA_FILE_LOCATION);
+ }
+
+ std::stringstream strStream;
+ strStream << inFile.rdbuf(); //read the file
+ content = strStream.str(); // holds the content of the file
+ inFile.close();
+
+ return true;
+}
+