/* Copyright 2011 Justin Erenkrantz and Greg Stein
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef TEST_SERVER_H
#define TEST_SERVER_H

#define TEST_SERVER_DUMP 1

/* Default port for our test server. */
#define SERV_PORT 12345
#define SERV_PORT_STR "12345"

#define PROXY_PORT 23456

typedef struct serv_ctx_t serv_ctx_t;

typedef apr_status_t (*send_func_t)(serv_ctx_t *serv_ctx, const char *data,
                                    apr_size_t *len);
typedef apr_status_t (*receive_func_t)(serv_ctx_t *serv_ctx, char *data,
                                       apr_size_t *len);

typedef apr_status_t (*handshake_func_t)(serv_ctx_t *serv_ctx);

typedef struct
{
    enum {
        SERVER_RECV,
        SERVER_SEND,
        SERVER_RESPOND,
        SERVER_IGNORE_AND_KILL_CONNECTION,
        SERVER_KILL_CONNECTION
    } kind;

    const char *text;
} test_server_action_t;

typedef struct
{
    const char *text;
} test_server_message_t;

struct serv_ctx_t {
    /* Pool for resource allocation. */
    apr_pool_t *pool;

    apr_int32_t options;

    /* Array of actions which server will replay when client connected. */
    test_server_action_t *action_list;
    /* Size of action_list array. */
    apr_size_t action_count;
    /* Index of current action. */
    apr_size_t cur_action;

    /* Array of messages the server will receive from the client. */
    test_server_message_t *message_list;
    /* Size of message_list array. */
    apr_size_t message_count;
    /* Index of current message. */
    apr_size_t cur_message;

    /* Number of messages received that the server didn't respond to yet. */
    apr_size_t outstanding_responses;

    /* Position in message buffer (incoming messages being read). */
    apr_size_t message_buf_pos;

    /* Position in action buffer. (outgoing messages being sent). */
    apr_size_t action_buf_pos;

    /* Address for server binding. */
    apr_sockaddr_t *serv_addr;
    apr_socket_t *serv_sock;

    /* Accepted client socket. NULL if there is no client socket. */
    apr_socket_t *client_sock;

    send_func_t send;
    receive_func_t read;

    handshake_func_t handshake;
    void *ssl_ctx;
};

void test_setup_server(serv_ctx_t **servctx_p,
                       apr_sockaddr_t *address,
                       test_server_message_t *message_list,
                       apr_size_t message_count,
                       test_server_action_t *action_list,
                       apr_size_t action_count,
                       apr_int32_t options,
                       apr_pool_t *pool);

void test_setup_https_server(serv_ctx_t **servctx_p,
                             apr_sockaddr_t *address,
                             test_server_message_t *message_list,
                             apr_size_t message_count,
                             test_server_action_t *action_list,
                             apr_size_t action_count,
                             apr_int32_t options,
                             const char *keyfile,
                             const char *certfile,
                             apr_pool_t *pool);

apr_status_t test_start_server(serv_ctx_t *serv_ctx);

apr_status_t test_server_run(serv_ctx_t *servctx,
                             apr_short_interval_time_t duration,
                             apr_pool_t *pool);

apr_status_t test_server_destroy(serv_ctx_t *servctx, apr_pool_t *pool);

apr_status_t init_ssl_context(serv_ctx_t *serv_ctx,
                              const char *keyfile,
                              const char *certfile);
apr_status_t ssl_handshake(serv_ctx_t *servctx);
apr_status_t ssl_socket_write(serv_ctx_t *serv_ctx, const char *data,
                              apr_size_t *len);
apr_status_t ssl_socket_read(serv_ctx_t *serv_ctx, char *data, apr_size_t *len);
void cleanup_ssl_context(serv_ctx_t *serv_ctx);


#ifndef APR_VERSION_AT_LEAST /* Introduced in APR 1.3.0 */
#define APR_VERSION_AT_LEAST(major,minor,patch)                  \
(((major) < APR_MAJOR_VERSION)                                       \
 || ((major) == APR_MAJOR_VERSION && (minor) < APR_MINOR_VERSION)    \
 || ((major) == APR_MAJOR_VERSION && (minor) == APR_MINOR_VERSION && \
     (patch) <= APR_PATCH_VERSION))
#endif /* APR_VERSION_AT_LEAST */


#endif /* TEST_SERVER_H */