Function ff_http_auth_create_response

libavformat/httpauth.c:240–285

}

char *ff_http_auth_create_response(HTTPAuthState *state, const char *auth,
                                   const char *path, const char *method)
{
    char *authstr = NULL;

    /* Clear the stale flag, we assume the auth is ok now. It is reset
     * by the server headers if there's a new issue. */
    state->stale = 0;
    if (!auth || !strchr(auth, ':'))
        return NULL;

    if (state->auth_type == HTTP_AUTH_BASIC) {
        int auth_b64_len, len;
        char *ptr, *decoded_auth = ff_urldecode(auth, 0);

        if (!decoded_auth)
            return NULL;

        auth_b64_len = AV_BASE64_SIZE(strlen(decoded_auth));
        len = auth_b64_len + 30;

        authstr = av_malloc(len);
        if (!authstr) {
            av_free(decoded_auth);
            return NULL;
        }

        snprintf(authstr, len, "Authorization: Basic ");
        ptr = authstr + strlen(authstr);
        av_base64_encode(ptr, auth_b64_len, decoded_auth, strlen(decoded_auth));
        av_strlcat(ptr, "\r\n", len - (ptr - authstr));
        av_free(decoded_auth);
    } else if (state->auth_type == HTTP_AUTH_DIGEST) {
        char *username = ff_urldecode(auth, 0), *password;

        if (!username)
            return NULL;

        if ((password = strchr(username, ':'))) {
            *password++ = 0;
            authstr = make_digest_auth(state, username, password, path, method);
        }
        av_free(username);
    }
    return authstr;
}