static const char *mg_strcasestr(const char *big_str, const char *small_str) {
int i, big_len = strlen(big_str), small_len = strlen(small_str);
for (i = 0; i <= big_len - small_len; i++) {
if (mg_strncasecmp(big_str + i, small_str, small_len) == 0) {
return big_str + i;
}
}
return NULL;
}
END_TEST
START_TEST(test_mg_strncasecmp)
{
ck_assert(mg_strncasecmp("abc", "abc", 3) == 0);
ck_assert(mg_strncasecmp("abc", "abcd", 3) == 0);
ck_assert(mg_strncasecmp("abc", "abcd", 4) != 0);
ck_assert(mg_strncasecmp("a", "A", 1) == 0);
ck_assert(mg_strncasecmp("A", "B", 1) < 0);
ck_assert(mg_strncasecmp("A", "b", 1) < 0);
ck_assert(mg_strncasecmp("a", "B", 1) < 0);
ck_assert(mg_strncasecmp("a", "b", 1) < 0);
ck_assert(mg_strncasecmp("b", "A", 1) > 0);
ck_assert(mg_strncasecmp("B", "A", 1) > 0);
ck_assert(mg_strncasecmp("b", "a", 1) > 0);
ck_assert(mg_strncasecmp("B", "a", 1) > 0);
ck_assert(mg_strncasecmp("xAx", "xBx", 3) < 0);
ck_assert(mg_strncasecmp("xAx", "xbx", 3) < 0);
ck_assert(mg_strncasecmp("xax", "xBx", 3) < 0);
ck_assert(mg_strncasecmp("xax", "xbx", 3) < 0);
ck_assert(mg_strncasecmp("xbx", "xAx", 3) > 0);
ck_assert(mg_strncasecmp("xBx", "xAx", 3) > 0);
ck_assert(mg_strncasecmp("xbx", "xax", 3) > 0);
ck_assert(mg_strncasecmp("xBx", "xax", 3) > 0);
}
// Return 1 on success. Always initializes the ah structure.
static int parse_auth_header(struct mg_connection *conn, char *buf,
size_t buf_size, struct ah *ah) {
char *name, *value, *s;
const char *auth_header;
(void) memset(ah, 0, sizeof(*ah));
if ((auth_header = mg_get_header(conn, "Authorization")) == NULL ||
mg_strncasecmp(auth_header, "Digest ", 7) != 0) {
return 0;
}
// Make modifiable copy of the auth header
(void) mg_strlcpy(buf, auth_header + 7, buf_size);
s = buf;
// Parse authorization header
for (;;) {
// Gobble initial spaces
while (isspace(* (unsigned char *) s)) {
s++;
}
name = skip_quoted(&s, "=", " ", 0);
// Value is either quote-delimited, or ends at first comma or space.
if (s[0] == '\"') {
s++;
value = skip_quoted(&s, "\"", " ", '\\');
if (s[0] == ',') {
s++;
}
} else {
value = skip_quoted(&s, ", ", " ", 0); // IE uses commas, FF uses spaces
}
if (*name == '\0') {
break;
}
if (!strcmp(name, "username")) {
ah->user = value;
} else if (!strcmp(name, "cnonce")) {
ah->cnonce = value;
} else if (!strcmp(name, "response")) {
ah->response = value;
} else if (!strcmp(name, "uri")) {
ah->uri = value;
} else if (!strcmp(name, "qop")) {
ah->qop = value;
} else if (!strcmp(name, "nc")) {
ah->nc = value;
} else if (!strcmp(name, "nonce")) {
ah->nonce = value;
}
}
// CGI needs it as REMOTE_USER
if (ah->user != NULL) {
conn->request_info.remote_user = mg_strdup(ah->user);
} else {
return 0;
}
return 1;
}
