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#ifndef HTTP_CLIENT_AUTH_H
#define HTTP_CLIENT_AUTH_H
#include "HTTPClientWrapper.h" // Cross platform support
#define HASHLEN 16
#define HASHHEXLEN 32
#define IN
#define OUT
typedef char HASH[HASHLEN];
typedef char HASHHEX[HASHHEXLEN+1];
typedef unsigned long uint32;
// Base 64 Related
#define DECODE64(c) (isascii(c) ? base64val[c] : BAD)
#define BAD -1
static const char base64digits[] =
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
static const char base64val[] = {
BAD,BAD,BAD,BAD, BAD,BAD,BAD,BAD, BAD,BAD,BAD,BAD, BAD,BAD,BAD,BAD,
BAD,BAD,BAD,BAD, BAD,BAD,BAD,BAD, BAD,BAD,BAD,BAD, BAD,BAD,BAD,BAD,
BAD,BAD,BAD,BAD, BAD,BAD,BAD,BAD, BAD,BAD,BAD, 62, BAD,BAD,BAD, 63,
52, 53, 54, 55, 56, 57, 58, 59, 60, 61,BAD,BAD, BAD,BAD,BAD,BAD,
BAD, 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,BAD, BAD,BAD,BAD,BAD,
BAD, 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,BAD, BAD,BAD,BAD,BAD
};
void HTTPBase64Encoder(unsigned char *out, const unsigned char *in, int inlen);
int HTTPBase64Decoder(char *out, const char *in);
// Digest Related
// Generates a 32 byte random hexadecimal string such as "4f6ba982..."
void HTTPDigestGenerateCNonce(char *outbuff);
// Calculate H(A1) as per HTTP Digest spec
void HTTPDigestCalcHA1(
IN int nAlg, /* 0 = MD5, 1 = MD5-Sess */
IN char * pszUserName,
IN char * pszRealm,
IN int nRealmLength,
IN char * pszPassword,
IN char * pszNonce,
IN int nNonceLength,
IN char * pszCNonce,
OUT HASHHEX SessionKey
);
// Calculate request-digest/response-digest as per HTTP Digest spec
void HTTPDigestCalcResponse(
IN HASHHEX HA1, // H(A1)
IN char * pszNonce, // nonce from server
IN int nNonceLength, // Length of nonce
IN char * pszNonceCount, // 8 hex digits
IN char * pszCNonce, // client nonce
IN char * pszQop, // qop-value: "", "auth", "auth-int"
IN int nQopLength, // qop param length
IN char * pszMethod, // method from the request
IN char * pszDigestUri, // requested URL
IN int nDigestUriLebgth, // Uri Length
IN HASHHEX HEntity, // H(entity body) if qop="auth-int"
OUT HASHHEX Response // request-digest or response-digest
);
// MD5 structures and functions
struct MD5Context
{
uint32 buf[4];
uint32 bits[2];
unsigned char in[64];
};
void HTTPMD5Init (struct MD5Context *context);
void HTTPMD5Update (struct MD5Context *context, unsigned char const *buf,unsigned len);
void HTTPMD5Final (unsigned char digest[16], struct MD5Context *context);
void HTTPMD5Transform (uint32 buf[4], uint32 const in[16]);
// This is needed to make RSAREF happy on some MS-DOS compilers.
typedef struct MD5Context MD5_CTX;
#endif
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