/*
  +----------------------------------------------------------------------+
  | PHP Version 4                                                        |
  +----------------------------------------------------------------------+
  | Copyright (c) 1997-2006 The PHP Group                                |
  +----------------------------------------------------------------------+
  | This source file is subject to version 3.01 of the PHP license,      |
  | that is bundled with this package in the file LICENSE, and is        |
  | available at through the world-wide-web at                           |
  | http://www.php.net/license/3_01.txt.                                 |
  | If you did not receive a copy of the PHP license and are unable to   |
  | obtain it through the world-wide-web, please send a note to          |
  | license@php.net so we can mail you a copy immediately.               |
  +----------------------------------------------------------------------+
  | Author: Sara Golemon <pollita@php.net>                               |
  +----------------------------------------------------------------------+

  $Id$ 
*/

#ifndef PHP_SSH2_H
#define PHP_SSH2_H

#include <libssh2.h>
#include <libssh2_sftp.h>
#include "ext/standard/url.h"

#define PHP_SSH2_VERSION        "0.13+dev"
#define PHP_SSH2_DEFAULT_PORT   22

/* Exported Constants */
#define PHP_SSH2_FINGERPRINT_MD5		0x0000
#define PHP_SSH2_FINGERPRINT_SHA1		0x0001
#define PHP_SSH2_FINGERPRINT_HEX		0x0000
#define PHP_SSH2_FINGERPRINT_RAW		0x0002

#define PHP_SSH2_TERM_UNIT_CHARS		0x0000
#define PHP_SSH2_TERM_UNIT_PIXELS		0x0001

#define PHP_SSH2_DEFAULT_TERMINAL		"vanilla"
#define PHP_SSH2_DEFAULT_TERM_WIDTH		80
#define PHP_SSH2_DEFAULT_TERM_HEIGHT	25
#define PHP_SSH2_DEFAULT_TERM_UNIT		PHP_SSH2_TERM_UNIT_CHARS

#define PHP_SSH2_SESSION_RES_NAME		"SSH2 Session"
#define PHP_SSH2_CHANNEL_STREAM_NAME	"SSH2 Channel"
#define PHP_SSH2_LISTENER_RES_NAME		"SSH2 Listener"
#define PHP_SSH2_SFTP_RES_NAME			"SSH2 SFTP"
#define PHP_SSH2_PKEY_SUBSYS_RES_NAME	"SSH2 Publickey Subsystem"

#define PHP_SSH2_SFTP_STREAM_NAME		"SSH2 SFTP File"
#define PHP_SSH2_SFTP_DIRSTREAM_NAME	"SSH2 SFTP Directory"
#define PHP_SSH2_SFTP_WRAPPER_NAME		"SSH2 SFTP"

#define PHP_SSH2_LISTEN_MAX_QUEUED		16

#define PHP_SSH2_DEFAULT_POLL_TIMEOUT	30

extern zend_module_entry ssh2_module_entry;
#define phpext_ssh2_ptr &ssh2_module_entry

typedef struct _php_ssh2_session_data {
	/* Userspace callback functions */
	zval *ignore_cb;
	zval *debug_cb;
	zval *macerror_cb;
	zval *disconnect_cb;

	int socket;

#ifdef ZTS
	/* Avoid unnecessary TSRMLS_FETCH() calls */
	TSRMLS_D;
#endif
} php_ssh2_session_data;

typedef struct _php_ssh2_sftp_data {
    LIBSSH2_SESSION *session;
    LIBSSH2_SFTP *sftp;

    int session_rsrcid;
} php_ssh2_sftp_data;

typedef struct _php_ssh2_listener_data {
    LIBSSH2_SESSION *session;
    LIBSSH2_LISTENER *listener;

    int session_rsrcid;
} php_ssh2_listener_data;

#include "libssh2_publickey.h"

typedef struct _php_ssh2_pkey_subsys_data {
	LIBSSH2_SESSION *session;
	LIBSSH2_PUBLICKEY *pkey;

	int session_rsrcid;
} php_ssh2_pkey_subsys_data;

#ifndef PHP_WIN32
#define closesocket(s)	close(s)
#endif

#ifdef ZTS
#define SSH2_TSRMLS_SET(datap)		((php_ssh2_session_data*)(datap))->tsrm_ls = TSRMLS_C
#define SSH2_TSRMLS_FETCH(datap)	TSRMLS_D = ((php_ssh2_session_data*)(datap))->tsrm_ls
#else
#define SSH2_TSRMLS_SET(datap)
#define SSH2_TSRMLS_FETCH(datap)
#endif

#if (PHP_MAJOR_VERSION == 5) && (PHP_MINOR_VERSION >= 3)
#define ZEND_IS_CALLABLE_TSRMLS_CC		TSRMLS_CC
#else
#define ZEND_IS_CALLABLE_TSRMLS_CC
#endif

/* < 5.3 compatibility */
#ifndef Z_REFCOUNT_P
#define Z_REFCOUNT_P(pz)              (pz)->refcount
#define Z_REFCOUNT_PP(ppz)            Z_REFCOUNT_P(*(ppz))
#endif

#ifndef Z_SET_REFCOUNT_P
#define Z_SET_REFCOUNT_P(pz, rc)      (pz)->refcount = rc
#define Z_SET_REFCOUNT_PP(ppz, rc)    Z_SET_REFCOUNT_P(*(ppz), rc)
#endif

#ifndef Z_ISREF_P
#define Z_ISREF_P(pz)                 (pz)->is_ref
#define Z_ISREF_PP(ppz)               Z_ISREF_P(*(ppz))
#endif

#ifndef Z_SET_ISREF_P
#define Z_SET_ISREF_P(pz)             (pz)->is_ref = 1
#define Z_SET_ISREF_PP(ppz)           Z_SET_ISREF_P(*(ppz))
#endif

#ifndef Z_UNSET_ISREF_P
#define Z_UNSET_ISREF_P(pz)           (pz)->is_ref = 0
#define Z_UNSET_ISREF_PP(ppz)         Z_UNSET_ISREF_P(*(ppz))
#endif

#define SSH2_FETCH_NONAUTHENTICATED_SESSION(session, zsession) \
ZEND_FETCH_RESOURCE(session, LIBSSH2_SESSION*, &zsession, -1, PHP_SSH2_SESSION_RES_NAME, le_ssh2_session); \
if (libssh2_userauth_authenticated(session)) { \
	php_error_docref(NULL TSRMLS_CC, E_WARNING, "Connection already authenticated"); \
	RETURN_FALSE; \
}

#define SSH2_FETCH_AUTHENTICATED_SESSION(session, zsession) \
ZEND_FETCH_RESOURCE(session, LIBSSH2_SESSION*, &zsession, -1, PHP_SSH2_SESSION_RES_NAME, le_ssh2_session); \
if (!libssh2_userauth_authenticated(session)) { \
	php_error_docref(NULL TSRMLS_CC, E_WARNING, "Connection not authenticated"); \
	RETURN_FALSE; \
}

typedef struct _php_ssh2_channel_data {
	LIBSSH2_CHANNEL *channel;

	/* Distinguish which stream we should read/write from/to */
	unsigned int streamid;
	char is_blocking;
	long timeout;

	/* Resource ID, zend_list_addref() when opening, zend_list_delete() when closing */
	long session_rsrc;

	/* Allow one stream to be closed while the other is kept open */
	unsigned char *refcount;

} php_ssh2_channel_data;

/* In ssh2_fopen_wrappers.c */
PHP_FUNCTION(ssh2_shell);
PHP_FUNCTION(ssh2_exec);
PHP_FUNCTION(ssh2_tunnel);
PHP_FUNCTION(ssh2_scp_recv);
PHP_FUNCTION(ssh2_scp_send);
PHP_FUNCTION(ssh2_fetch_stream);

/* In ssh2_sftp.c */
PHP_FUNCTION(ssh2_sftp);

PHP_FUNCTION(ssh2_sftp_rename);
PHP_FUNCTION(ssh2_sftp_unlink);
PHP_FUNCTION(ssh2_sftp_mkdir);
PHP_FUNCTION(ssh2_sftp_rmdir);
PHP_FUNCTION(ssh2_sftp_chmod);
PHP_FUNCTION(ssh2_sftp_stat);
PHP_FUNCTION(ssh2_sftp_lstat);
PHP_FUNCTION(ssh2_sftp_symlink);
PHP_FUNCTION(ssh2_sftp_readlink);
PHP_FUNCTION(ssh2_sftp_realpath);

LIBSSH2_SESSION *php_ssh2_session_connect(char *host, int port, zval *methods, zval *callbacks TSRMLS_DC);
void php_ssh2_sftp_dtor(zend_rsrc_list_entry *rsrc TSRMLS_DC);
php_url *php_ssh2_fopen_wraper_parse_path(	char *path, char *type, php_stream_context *context,
											LIBSSH2_SESSION **psession, int *presource_id,
											LIBSSH2_SFTP **psftp, int *psftp_rsrcid
											TSRMLS_DC);

extern php_stream_ops php_ssh2_channel_stream_ops;

extern php_stream_wrapper php_ssh2_stream_wrapper_shell;
extern php_stream_wrapper php_ssh2_stream_wrapper_exec;
extern php_stream_wrapper php_ssh2_stream_wrapper_tunnel;
extern php_stream_wrapper php_ssh2_stream_wrapper_scp;
extern php_stream_wrapper php_ssh2_sftp_wrapper;

/* Resource list entries */
extern int le_ssh2_session;
extern int le_ssh2_sftp;

/* {{{ ZIP_OPENBASEDIR_CHECKPATH(filename) */
#if PHP_API_VERSION < 20100412
# define SSH2_OPENBASEDIR_CHECKPATH(filename) \
	(PG(safe_mode) && (!php_checkuid(filename, NULL, CHECKUID_CHECK_FILE_AND_DIR))) || php_check_open_basedir(filename TSRMLS_CC)
#else
#define SSH2_OPENBASEDIR_CHECKPATH(filename) \
	php_check_open_basedir(filename TSRMLS_CC)
#endif
/* }}} */
#endif	/* PHP_SSH2_H */


/*
 * Local variables:
 * tab-width: 4
 * c-basic-offset: 4
 * indent-tabs-mode: t
 * End:
 */