std::string escapeURL(const std::string &URL)
{
std::string result = "";
for ( unsigned int i=0; i<URL.size(); i++ ) {
char c = URL[i];
if (
( '0'<=c && c<='9' ) ||
( 'a'<=c && c<='z' ) ||
( 'A'<=c && c<='Z' ) ||
c=='/' || c=='.'
) {
result += c;
} else {
int j = (short int)c;
if ( j < 0 ) {
j += 256;
}
int i1, i0;
i1 = j / 16;
i0 = j - i1*16;
result += '%';
result += dec2hexChar(i1);
result += dec2hexChar(i0);
}
}
return result;
}
string prettychar(char c){
if(c==0)return "\\0";
if(c==9)return "\\t";
if(c==10)return "\\n";
if(c==127)return "\\b";
//if(c<0)return string(1,(char)(192+(((unsigned char)c)>>6)))+(char)(128+(((unsigned char)c)&0x3f)); //utf-8 fanciness
if(c>0&&c<28)return string(1,'^')+(char)('A'+c-1);
if(c<32)return string("\\x")+dec2hexChar(((unsigned char)c)/16)+dec2hexChar(((unsigned char)c)%16);
return string(1,c);
}
string sha1String(string msg) {
unsigned char hash[SHA_DIGEST_LENGTH];
string hexhash;
SHA1(reinterpret_cast<const unsigned char *>(msg.c_str()), msg.size(), hash);
for (int i = 0; i < SHA_DIGEST_LENGTH; i++) {
hexhash += dec2hexChar(hash[i]/16);
hexhash += dec2hexChar(hash[i]%16);
}
return toLowerCase(hexhash);
}
