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authormadmaxoft <github@xoft.cz>2014-01-07 12:36:36 +0100
committermadmaxoft <github@xoft.cz>2014-01-07 12:36:36 +0100
commite3bb82d95a0bf270f9d43d0504bf155b52dc516b (patch)
treeb669419ae906a3ad08f695e598f661aebd36bc0d /src
parentDisabled the type conversion MSVC warning. (diff)
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Diffstat (limited to '')
-rw-r--r--src/StringUtils.cpp48
-rw-r--r--src/StringUtils.h3
2 files changed, 51 insertions, 0 deletions
diff --git a/src/StringUtils.cpp b/src/StringUtils.cpp
index 5c6b99d88..8d2352331 100644
--- a/src/StringUtils.cpp
+++ b/src/StringUtils.cpp
@@ -765,6 +765,54 @@ AString Base64Decode(const AString & a_Base64String)
+AString Base64Encode(const AString & a_Input)
+{
+ static const char BASE64[64] = {
+ 'A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P',
+ 'Q','R','S','T','U','V','W','X','Y','Z','a','b','c','d','e','f',
+ 'g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v',
+ 'w','x','y','z','0','1','2','3','4','5','6','7','8','9','+','/'
+ };
+
+ std::string output;
+ output.resize(((a_Input.size() + 2) / 3) * 4);
+
+ size_t output_index = 0;
+ size_t size_full24 = (a_Input.size() / 3) * 3;
+
+ for (size_t i = 0; i < size_full24; i += 3)
+ {
+ output[output_index++] = BASE64[(unsigned char)a_Input[i] >> 2];
+ output[output_index++] = BASE64[((unsigned char)a_Input[i] << 4 | (unsigned char)a_Input[i + 1] >> 4) & 63];
+ output[output_index++] = BASE64[((unsigned char)a_Input[i + 1] << 2 | (unsigned char)a_Input[i + 2] >> 6) & 63];
+ output[output_index++] = BASE64[(unsigned char)a_Input[i + 2] & 63];
+ }
+
+ if (size_full24 < a_Input.size())
+ {
+ output[output_index++] = BASE64[(unsigned char)a_Input[size_full24] >> 2];
+ if (size_full24 + 1 == a_Input.size())
+ {
+ output[output_index++] = BASE64[((unsigned char)a_Input[size_full24] << 4) & 63];
+ output[output_index++] = '=';
+ }
+ else
+ {
+ output[output_index++] = BASE64[((unsigned char)a_Input[size_full24] << 4 | (unsigned char)a_Input[size_full24 + 1] >> 4) & 63];
+ output[output_index++] = BASE64[((unsigned char)a_Input[size_full24 + 1] << 2) & 63];
+ }
+
+ output[output_index++] = '=';
+ }
+ assert(output_index == output.size());
+
+ return output;
+}
+
+
+
+
+
short GetBEShort(const char * a_Mem)
{
return (((short)a_Mem[0]) << 8) | a_Mem[1];
diff --git a/src/StringUtils.h b/src/StringUtils.h
index 471e843e4..2373f3843 100644
--- a/src/StringUtils.h
+++ b/src/StringUtils.h
@@ -81,6 +81,9 @@ extern AString ReplaceAllCharOccurrences(const AString & a_String, char a_From,
/// Decodes a Base64-encoded string into the raw data
extern AString Base64Decode(const AString & a_Base64String);
+/// Encodes a string into Base64
+extern AString Base64Encode(const AString & a_Input);
+
/// Reads two bytes from the specified memory location and interprets them as BigEndian short
extern short GetBEShort(const char * a_Mem);