diff options
Diffstat (limited to 'Swiften/StringCodecs/Base64.cpp')
-rw-r--r-- | Swiften/StringCodecs/Base64.cpp | 73 |
1 files changed, 43 insertions, 30 deletions
diff --git a/Swiften/StringCodecs/Base64.cpp b/Swiften/StringCodecs/Base64.cpp index 795d982..e4eaa4e 100644 --- a/Swiften/StringCodecs/Base64.cpp +++ b/Swiften/StringCodecs/Base64.cpp @@ -5,50 +5,63 @@ */ #include <boost/numeric/conversion/cast.hpp> + #include <algorithm> -#include "Swiften/StringCodecs/Base64.h" +#include <Swiften/StringCodecs/Base64.h> +#include <Swiften/Base/Algorithm.h> namespace Swift { #pragma GCC diagnostic ignored "-Wold-style-cast" -std::string Base64::encode(const ByteArray &s) { - int i; - int len = s.getSize(); - char tbl[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; - int a, b, c; - - std::string p; - p.resize((len+2)/3*4); - int at = 0; - for( i = 0; i < len; i += 3 ) { - a = ((unsigned char) (s[i]) & 3) << 4; - if(i + 1 < len) { - a += (unsigned char) (s[i + 1]) >> 4; - b = ((unsigned char) (s[i + 1]) & 0xF) << 2; - if(i + 2 < len) { - b += (unsigned char) (s[i + 2]) >> 6; - c = (unsigned char) (s[i + 2]) & 0x3F; +namespace { + template<typename TargetType, typename SourceType> + TargetType base64Encode(const SourceType& s) { + int i; + int len = s.size(); + char tbl[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="; + int a, b, c; + + TargetType p; + p.resize((len+2)/3*4); + int at = 0; + for( i = 0; i < len; i += 3 ) { + a = ((unsigned char) (s[i]) & 3) << 4; + if(i + 1 < len) { + a += (unsigned char) (s[i + 1]) >> 4; + b = ((unsigned char) (s[i + 1]) & 0xF) << 2; + if(i + 2 < len) { + b += (unsigned char) (s[i + 2]) >> 6; + c = (unsigned char) (s[i + 2]) & 0x3F; + } + else + c = 64; + } + else { + b = c = 64; } - else - c = 64; - } - else { - b = c = 64; - } - p[at++] = tbl[(unsigned char) (s[i]) >> 2]; - p[at++] = tbl[a]; - p[at++] = tbl[b]; - p[at++] = tbl[c]; + p[at++] = tbl[(unsigned char) (s[i]) >> 2]; + p[at++] = tbl[a]; + p[at++] = tbl[b]; + p[at++] = tbl[c]; + } + return p; } - return p; +} + +std::string Base64::encode(const ByteArray &s) { + return base64Encode<std::string, ByteArray>(s); +} + +SafeByteArray Base64::encode(const SafeByteArray &s) { + return base64Encode<SafeByteArray, SafeByteArray>(s); } ByteArray Base64::decode(const std::string& input) { std::string inputWithoutNewlines(input); - inputWithoutNewlines.erase(std::remove(inputWithoutNewlines.begin(), inputWithoutNewlines.end(), '\n'), inputWithoutNewlines.end()); + erase(inputWithoutNewlines, '\n'); const std::string& s = inputWithoutNewlines; ByteArray p; |