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authorHanoh Haim <hhaim@cisco.com>2015-06-24 14:03:29 +0300
committerHanoh Haim <hhaim@cisco.com>2015-06-24 14:03:29 +0300
commit8b52a31ed2c299b759f330c4f976b9c70f5765f4 (patch)
tree9d6da5438b5b56b1d2d57e6c13494b4e65d000e7 /yaml-cpp/src/binary.cpp
first version
Diffstat (limited to 'yaml-cpp/src/binary.cpp')
-rwxr-xr-xyaml-cpp/src/binary.cpp102
1 files changed, 102 insertions, 0 deletions
diff --git a/yaml-cpp/src/binary.cpp b/yaml-cpp/src/binary.cpp
new file mode 100755
index 00000000..589eb089
--- /dev/null
+++ b/yaml-cpp/src/binary.cpp
@@ -0,0 +1,102 @@
+#include "yaml-cpp/binary.h"
+#include "yaml-cpp/node.h"
+
+namespace YAML
+{
+ static const char encoding[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+
+ std::string EncodeBase64(const unsigned char *data, std::size_t size)
+ {
+ const char PAD = '=';
+
+ std::string ret;
+ ret.resize(4 * size / 3 + 3);
+ char *out = &ret[0];
+
+ std::size_t chunks = size / 3;
+ std::size_t remainder = size % 3;
+
+ for(std::size_t i=0;i<chunks;i++, data += 3) {
+ *out++ = encoding[data[0] >> 2];
+ *out++ = encoding[((data[0] & 0x3) << 4) | (data[1] >> 4)];
+ *out++ = encoding[((data[1] & 0xf) << 2) | (data[2] >> 6)];
+ *out++ = encoding[data[2] & 0x3f];
+ }
+
+ switch(remainder) {
+ case 0:
+ break;
+ case 1:
+ *out++ = encoding[data[0] >> 2];
+ *out++ = encoding[((data[0] & 0x3) << 4)];
+ *out++ = PAD;
+ *out++ = PAD;
+ break;
+ case 2:
+ *out++ = encoding[data[0] >> 2];
+ *out++ = encoding[((data[0] & 0x3) << 4) | (data[1] >> 4)];
+ *out++ = encoding[((data[1] & 0xf) << 2)];
+ *out++ = PAD;
+ break;
+ }
+
+ ret.resize(out - &ret[0]);
+ return ret;
+ }
+
+ static const unsigned char decoding[] = {
+ 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,255,255,255, 62,255,255,255, 63,
+ 52, 53, 54, 55, 56, 57, 58, 59, 60, 61,255,255,255, 0,255,255,
+ 255, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
+ 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,255,255,255,255,255,
+ 255, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
+ 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
+ };
+
+ std::vector<unsigned char> DecodeBase64(const std::string& input)
+ {
+ typedef std::vector<unsigned char> ret_type;
+ if(input.empty())
+ return ret_type();
+
+ ret_type ret(3 * input.size() / 4 + 1);
+ unsigned char *out = &ret[0];
+
+ unsigned value = 0;
+ for(std::size_t i=0;i<input.size();i++) {
+ unsigned char d = decoding[static_cast<unsigned>(input[i])];
+ if(d == 255)
+ return ret_type();
+
+ value = (value << 6) | d;
+ if(i % 4 == 3) {
+ *out++ = value >> 16;
+ if(i > 0 && input[i - 1] != '=')
+ *out++ = value >> 8;
+ if(input[i] != '=')
+ *out++ = value;
+ }
+ }
+
+ ret.resize(out - &ret[0]);
+ return ret;
+ }
+
+ void operator >> (const Node& node, Binary& binary)
+ {
+ std::string scalar;
+ node.GetScalar(scalar);
+ std::vector<unsigned char> data = DecodeBase64(scalar);
+ binary.swap(data);
+ }
+}