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#ifndef __DIGEST_H__
#define __DIGEST_H__
#include "md5.h"
#define DIGEST_NONCE_LEN sizeof(time_t) + sizeof(unsigned int) + MD5_LEN
#define DIGEST_SECRET_LEN 16
/* Parsed Digest response from the client */
typedef struct digest_header
{
const char* scheme;
const char* realm;
const char* username;
const char* nonce;
const char* uri;
const char* method;
const char* digest;
const char* algorithm;
const char* cnonce;
const char* opaque;
const char* qop;
const char* nc;
}
digest_header_t;
typedef struct digest_context
{
digest_header_t client;
long server_nc;
const char* server_uri;
const char* server_method;
unsigned char ha1[MD5_LEN];
}
digest_context_t;
void digest_makeha1(unsigned char* digest, const char* user,
const char* realm, const char* password);
int digest_parse(const char* header, ha_buffer_t* buf, digest_header_t* dg);
const char* digest_challenge(ha_buffer_t* buf, const char* nonce_str,
const char* realm, const char* domains, int stale);
/*
* Validate digest headers once they've been parsed. Note that it's up
* to the caller to validate the 'username' and 'nonce' fields.
*/
int digest_check(digest_context_t* dg, const ha_context_t* opts, ha_buffer_t* buf);
int digest_pre_check(digest_context_t* dg, const ha_context_t* opts, ha_buffer_t* buf);
/* This assumes a digest_context that's been prechecked successfully */
int digest_complete_check(digest_context_t* dg, ha_buffer_t* buf);
/* This assumes a digest_context that's been checked and validated successfully */
const char* digest_respond(digest_context_t* dg, ha_buffer_t* buf, unsigned char* next);
#endif /* __DIGEST_H__ */
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