Function createAuthHeader

src/auth.cpp:163–218

}

int createAuthHeader(
    const char* user, const char* password, const char* method,
    const char* uri, const char* msgbody, const char* auth,
    const char* aka_OP, const char* aka_AMF, const char* aka_K,
    unsigned int nonce_count, char* result, size_t result_len)
{

    char algo[32] = "MD5";
    char *start, *end;

    if ((start = stristr(auth, "Digest")) == nullptr) {
        snprintf(result, result_len, "createAuthHeader: authentication must be digest");
        return 0;
    }

    if (!method) {
        snprintf(result, result_len, "createAuthHeader: authentication requires a method");
        return 0;
    }

    if ((start = stristr(auth, "algorithm=")) != nullptr) {
        start = start + strlen("algorithm=");
        if (*start == '"') {
            start++;
        }
        end = start + strcspn(start, " ,\"\r\n");
        strncpy(algo, start, end - start);
        algo[end - start] ='\0';

    }

    if (strncasecmp(algo, "MD5", 3)==0) {
        return createAuthHeaderMD5(
            user, password, strlen(password), method, uri, msgbody,
            auth, algo, nonce_count, result, result_len);
    } else if (strncasecmp(algo, "AKAv1-MD5", 9)==0) {
        if (!aka_K) {
            snprintf(result, result_len, "createAuthHeader: AKAv1-MD5 authentication requires a key");
            return 0;
        }
        return createAuthHeaderAKAv1MD5(
            user, aka_OP, aka_AMF, aka_K, method, uri, msgbody, auth,
            algo, nonce_count, result, result_len);
#ifdef USE_SHA256
    } else if (strncasecmp(algo, "SHA-256", 7)==0) {
        return createAuthHeaderSHA256(
            user, password, strlen(password), method, uri, msgbody,
            auth, algo, nonce_count, result, result_len);
#endif // USE_SHA256
    } else {
        snprintf(result, result_len, "createAuthHeader: authentication must use MD5, AKAv1-MD5 or SHA-256");
        return 0;
    }


}