36#if defined(MHD_W32_MUTEX_)
37#ifndef WIN32_LEAN_AND_MEAN
38#define WIN32_LEAN_AND_MEAN 1
46#define TIMESTAMP_BIN_SIZE 4
53#define NONCE_STD_LEN(digest_size) \
54 ((digest_size) * 2 + TIMESTAMP_BIN_SIZE * 2)
61#define MAX_DIGEST SHA256_DIGEST_SIZE
66#ifndef HAVE_C_VARARRAYS
72#define VLA_ARRAY_LEN_DIGEST(n) (MAX_DIGEST)
80#define VLA_ARRAY_LEN_DIGEST(n) (n)
86#define VLA_CHECK_LEN_DIGEST(n) do { if ((n) > MAX_DIGEST) mhd_panic ( \
87 mhd_panic_cls, __FILE__, __LINE__, \
88 "VLA too big.\n"); } while (0)
94#define _BASE "Digest "
99#define MAX_USERNAME_LENGTH 128
104#define MAX_REALM_LENGTH 256
109#define MAX_AUTH_RESPONSE_LENGTH 256
117struct DigestAlgorithm
122 unsigned int digest_size;
186 for (i = 0; i < len; ++i)
188 j = (bin[i] >> 4) & 0x0f;
189 hex[i * 2] = (char) ((j <= 9) ? (j +
'0') : (j - 10 +
'a'));
191 hex[i * 2 + 1] = (char) ((j <= 9) ? (j +
'0') : (j - 10 +
'a'));
214 struct DigestAlgorithm *da,
215 const uint8_t *digest,
219 const unsigned int digest_size = da->digest_size;
233 (
const unsigned char *)
":",
236 (
const unsigned char *) nonce,
239 (
const unsigned char *)
":",
242 (
const unsigned char *) cnonce,
275 const char *username,
277 const char *password,
280 struct DigestAlgorithm *da)
287 (
const unsigned char *) username,
290 (
const unsigned char *)
":",
293 (
const unsigned char *) realm,
296 (
const unsigned char *)
":",
299 (
const unsigned char *) password,
330 const char *noncecount,
336 struct DigestAlgorithm *da)
338 const unsigned int digest_size = da->digest_size;
346 (
const unsigned char *) method,
349 (
const unsigned char *)
":",
352 (
const unsigned char *) uri,
355 if (0 == strcasecmp (qop,
377 (
const unsigned char *) ha1,
380 (
const unsigned char *)
":",
383 (
const unsigned char *) nonce,
386 (
const unsigned char*)
":",
391 (
const unsigned char *) noncecount,
392 strlen (noncecount));
394 (
const unsigned char *)
":",
397 (
const unsigned char *) cnonce,
400 (
const unsigned char *)
":",
403 (
const unsigned char *) qop,
406 (
const unsigned char *)
":",
410 (
const unsigned char *) da->sessionkey,
450 keylen = strlen (key);
454 if (
NULL == (eq = strchr (ptr,
478 (eq == &ptr[keylen]) )
482 len = strlen (q1) + 1;
494 if (size > (
size_t) ((q2 - q1) + 1))
495 size = (q2 - q1) + 1;
539 noncelen = strlen (
nonce) + 1;
545 mod = daemon->nonce_nc_size;
553 off = (off << 8) | (*np ^ (off >> 24));
562 nn = &daemon->nnc[off];
563#if defined(MHD_USE_POSIX_THREADS) || defined(MHD_USE_W32_THREADS)
574#if defined(MHD_USE_POSIX_THREADS) || defined(MHD_USE_W32_THREADS)
581 if ( (nc < nn->
nc) &&
583 (
nc + 64 >= nn->
nc) &&
584 (0 == ((1LLU << (nn->
nc -
nc - 1)) & nn->
nmask)) )
587 nn->
nmask |= (1LLU << (nn->
nc -
nc - 1));
588#if defined(MHD_USE_POSIX_THREADS) || defined(MHD_USE_W32_THREADS)
594 if ( (nc <= nn->
nc) ||
595 (0 != strcmp (nn->
nonce,
599#if defined(MHD_USE_POSIX_THREADS) || defined(MHD_USE_W32_THREADS)
605 "Stale nonce received. If this happens a lot, you should probably increase the size of the nonce array.\n"));
610 if (64 >
nc - nn->
nc)
615#if defined(MHD_USE_POSIX_THREADS) || defined(MHD_USE_W32_THREADS)
645 if (0 != strncmp (header,
655 return strdup (user);
681 struct DigestAlgorithm *da,
685 const unsigned int digest_size = da->digest_size;
690 timestamp[0] = (
unsigned char) ((nonce_time & 0xff000000) >> 0x18);
691 timestamp[1] = (
unsigned char) ((nonce_time & 0x00ff0000) >> 0x10);
692 timestamp[2] = (
unsigned char) ((nonce_time & 0x0000ff00) >> 0x08);
693 timestamp[3] = (
unsigned char) ((nonce_time & 0x000000ff));
698 (
const unsigned char *)
":",
701 (
const unsigned char *) method,
704 (
const unsigned char *)
":",
708 (
const unsigned char *) rnd,
711 (
const unsigned char *)
":",
714 (
const unsigned char *) uri,
717 (
const unsigned char *)
":",
720 (
const unsigned char *) realm,
729 nonce + digest_size * 2);
764 if (0 != memcmp (key,
799 unsigned int num_headers;
802 argb = strdup (args);
806 MHD_DLOG (connection->
daemon,
807 _ (
"Failed to allocate memory for copy of URI arguments.\n"));
828 if (0 != num_headers)
858 struct DigestAlgorithm *da,
860 const char *username,
861 const char *password,
862 const uint8_t *digest,
863 unsigned int nonce_timeout)
870 const unsigned int digest_size = da->digest_size;
875 const char *hentity =
NULL;
892 if (0 != strncmp (header,
897 left = strlen (header);
907 (0 != strcmp (username,
910 left -= strlen (
"username") + len;
924 left -= strlen (
"realm") + len;
932 left -= strlen (
"nonce") + len;
933 if (left > 32 * 1024)
951 _ (
"Authentication failed, invalid timestamp format.\n"));
961 if ( (t > nonce_time + nonce_timeout) ||
962 (nonce_time + nonce_timeout < nonce_time) )
970 daemon->digest_auth_random,
971 daemon->digest_auth_rand_size,
985 if (0 != strcmp (nonce,
1013 _ (
"Authentication failed, invalid format.\n"));
1023 _ (
"Authentication failed, invalid nc format.\n"));
1044 uri = malloc (left + 1);
1049 _ (
"Failed to allocate memory for auth header processing.\n"));
1084 digest_size * 2 + 1);
1095 qmark = strchr (uri,
1104 if (0 != strcmp (uri,
1109 _ (
"Authentication failed, URI does not match.\n"));
1116 const char *args = qmark;
1128 _ (
"Authentication failed, arguments do not match.\n"));
1135 return (0 == strcmp (response,
1163 const char *username,
1164 const char *password,
1165 unsigned int nonce_timeout)
1184#define SETUP_DA(algo,da) \
1186 struct MD5Context md5; \
1187 struct sha256_ctx sha256; \
1190 char md5[MD5_DIGEST_SIZE * 2 + 1]; \
1191 char sha256[SHA256_DIGEST_SIZE * 2 + 1]; \
1193 struct DigestAlgorithm da; \
1197 case MHD_DIGEST_ALG_MD5: \
1198 da.digest_size = MD5_DIGEST_SIZE; \
1199 da.ctx = &ctx.md5; \
1201 da.sessionkey = skey.md5; \
1202 da.init = &MHD_MD5Init; \
1203 da.update = &MHD_MD5Update; \
1204 da.digest = &MHD_MD5Final; \
1206 case MHD_DIGEST_ALG_AUTO: \
1208 case MHD_DIGEST_ALG_SHA256: \
1209 da.digest_size = SHA256_DIGEST_SIZE; \
1210 da.ctx = &ctx.sha256; \
1211 da.alg = "SHA-256"; \
1212 da.sessionkey = skey.sha256; \
1213 da.init = &MHD_SHA256_init; \
1214 da.update = &MHD_SHA256_update; \
1215 da.digest = &MHD_SHA256_finish; \
1218 da.digest_size = 0; \
1219 mhd_assert (false); \
1242 const char *username,
1243 const char *password,
1244 unsigned int nonce_timeout,
1280 const char *username,
1281 const uint8_t *digest,
1283 unsigned int nonce_timeout,
1289 if (da.digest_size != digest_size)
1321 const char *username,
1323 unsigned int nonce_timeout)
1369 connection->
daemon->digest_auth_random,
1370 connection->
daemon->digest_auth_rand_size,
1381 MHD_DLOG (connection->
daemon,
1383 "Could not register nonce (is the nonce array size zero?).\n"));
1388 hlen = MHD_snprintf_ (
NULL,
1390 "Digest realm=\"%s\",qop=\"auth\",nonce=\"%s\",opaque=\"%s\",algorithm=%s%s",
1407 MHD_DLOG (connection->
daemon,
1408 _ (
"Failed to allocate memory for auth response header.\n"));
1413 if (MHD_snprintf_ (header,
1415 "Digest realm=\"%s\",qop=\"auth\",nonce=\"%s\",opaque=\"%s\",algorithm=%s%s",
1429 if ( (
MHD_NO != ret) && (AND in state : 100
continue aborting ...))
1449 MHD_DLOG (connection->
daemon,
1450 _ (
"Failed to add Digest auth header.\n"));
struct MHD_Daemon * MHD_get_master(struct MHD_Daemon *daemon)
#define VLA_CHECK_LEN_DIGEST(n)
#define SETUP_DA(algo, da)
static void digest_calc_response(const char *ha1, const char *nonce, const char *noncecount, const char *cnonce, const char *qop, const char *method, const char *uri, const char *hentity, struct DigestAlgorithm *da)
#define NONCE_STD_LEN(digest_size)
static enum MHD_Result check_argument_match(struct MHD_Connection *connection, const char *args)
#define MAX_AUTH_RESPONSE_LENGTH
#define TIMESTAMP_BIN_SIZE
static void digest_calc_ha1_from_user(const char *alg, const char *username, const char *realm, const char *password, const char *nonce, const char *cnonce, struct DigestAlgorithm *da)
static size_t lookup_sub_value(char *dest, size_t size, const char *data, const char *key)
static enum MHD_Result check_nonce_nc(struct MHD_Connection *connection, const char *nonce, uint64_t nc)
#define MAX_USERNAME_LENGTH
static void calculate_nonce(uint32_t nonce_time, const char *method, const char *rnd, size_t rnd_size, const char *uri, const char *realm, struct DigestAlgorithm *da, char *nonce)
static enum MHD_Result test_header(struct MHD_Connection *connection, const char *key, size_t key_size, const char *value, size_t value_size, enum MHD_ValueKind kind)
#define VLA_ARRAY_LEN_DIGEST(n)
static void digest_calc_ha1_from_digest(const char *alg, struct DigestAlgorithm *da, const uint8_t *digest, const char *nonce, const char *cnonce)
static void cvthex(const unsigned char *bin, size_t len, char *hex)
_MHD_EXTERN char * MHD_digest_auth_get_username(struct MHD_Connection *connection)
_MHD_EXTERN int MHD_digest_auth_check2(struct MHD_Connection *connection, const char *realm, const char *username, const char *password, unsigned int nonce_timeout, enum MHD_DigestAuthAlgorithm algo)
_MHD_EXTERN enum MHD_Result MHD_queue_auth_fail_response2(struct MHD_Connection *connection, const char *realm, const char *opaque, struct MHD_Response *response, int signal_stale, enum MHD_DigestAuthAlgorithm algo)
_MHD_EXTERN int MHD_digest_auth_check_digest2(struct MHD_Connection *connection, const char *realm, const char *username, const uint8_t *digest, size_t digest_size, unsigned int nonce_timeout, enum MHD_DigestAuthAlgorithm algo)
_MHD_EXTERN enum MHD_Result MHD_queue_auth_fail_response(struct MHD_Connection *connection, const char *realm, const char *opaque, struct MHD_Response *response, int signal_stale)
static int digest_auth_check_all(struct MHD_Connection *connection, struct DigestAlgorithm *da, const char *realm, const char *username, const char *password, const uint8_t *digest, unsigned int nonce_timeout)
_MHD_EXTERN int MHD_digest_auth_check_digest(struct MHD_Connection *connection, const char *realm, const char *username, const uint8_t digest[MHD_MD5_DIGEST_SIZE], unsigned int nonce_timeout)
_MHD_EXTERN int MHD_digest_auth_check(struct MHD_Connection *connection, const char *realm, const char *username, const char *password, unsigned int nonce_timeout)
#define MHD_INVALID_NONCE
#define MHD_HTTP_UNAUTHORIZED
_MHD_EXTERN enum MHD_Result MHD_lookup_connection_value_n(struct MHD_Connection *connection, enum MHD_ValueKind kind, const char *key, size_t key_size, const char **value_ptr, size_t *value_size_ptr)
_MHD_EXTERN enum MHD_Result MHD_queue_response(struct MHD_Connection *connection, unsigned int status_code, struct MHD_Response *response)
_MHD_EXTERN enum MHD_Result MHD_add_response_header(struct MHD_Response *response, const char *header, const char *content)
bool MHD_parse_arguments_(struct MHD_Request *request, enum MHD_ValueKind kind, char *args, MHD_ArgumentIterator_ cb, unsigned int *num_headers)
void * MHD_calloc_(size_t nelem, size_t elsize)
#define MHD_mutex_unlock_chk_(pmutex)
#define MHD_mutex_lock_chk_(pmutex)
time_t MHD_monotonic_sec_counter(void)
int MHD_str_equal_caseless_(const char *str1, const char *str2)
size_t MHD_strx_to_uint64_n_(const char *str, size_t maxlen, uint64_t *out_val)
int MHD_str_equal_caseless_n_(const char *const str1, const char *const str2, size_t maxlen)
size_t MHD_strx_to_uint32_n_(const char *str, size_t maxlen, uint32_t *out_val)
#define MHD_STATICSTR_LEN_(macro)
MHD internal shared structures.
Header for platform missing functions.
limits values definitions
internal monotonic clock functions implementations
Header for string manipulating helpers.
#define MHD_MD5_DIGEST_SIZE
Calculation of SHA-256 digest.
struct MHD_HTTP_Header * headers_received
struct MHD_Daemon * daemon
void * unescape_callback_cls
UnescapeCallback unescape_callback
char nonce[MAX_NONCE_LENGTH]