/*

 * Copyright(c) 2014-2018 Tim Ruehsen

 *

 * Permission is hereby granted, free of charge, to any person obtaining a

 * copy of this software and associated documentation files (the "Software"),

 * to deal in the Software without restriction, including without limitation

 * the rights to use, copy, modify, merge, publish, distribute, sublicense,

 * and/or sell copies of the Software, and to permit persons to whom the

 * Software is furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER

 * DEALINGS IN THE SOFTWARE.

 *

 * This file is part of libpsl.

 *

 * Header file for libpsl library routines

 *

 * Changelog

 * 20.03.2014  Tim Ruehsen  created

 *

 */

#ifndef LIBPSL_LIBPSL_H

#define LIBPSL_LIBPSL_H

#include <stdio.h>

#include <time.h>

#define PSL_VERSION "0.20.2"

#define PSL_VERSION_MAJOR 0

#define PSL_VERSION_MINOR 20

#define PSL_VERSION_PATCH 2

#define PSL_VERSION_NUMBER 0x001402

#ifndef PSL_API

#if defined BUILDING_PSL && HAVE_VISIBILITY

#  define PSL_API __attribute__ ((__visibility__("default")))

#elif defined BUILDING_PSL && defined _MSC_VER && !defined PSL_STATIC

#  define PSL_API __declspec(dllexport)

#elif defined _MSC_VER && !defined PSL_STATIC

#  define PSL_API __declspec(dllimport)

#else

#  define PSL_API

#endif

#endif

#ifdef  __cplusplus

extern "C" {

#endif

/* types for psl_is_public_suffix2() */

#define PSL_TYPE_ICANN        (1<<0)

#define PSL_TYPE_PRIVATE      (1<<1)

#define PSL_TYPE_NO_STAR_RULE (1<<2)

#define PSL_TYPE_ANY          (PSL_TYPE_ICANN | PSL_TYPE_PRIVATE)

/**

 * psl_error_t:

 * @PSL_SUCCESS: Successful return.

 * @PSL_ERR_INVALID_ARG: Invalid argument.

 * @PSL_ERR_CONVERTER: Failed to open libicu utf-16 converter.

 * @PSL_ERR_TO_UTF16: Failed to convert to utf-16.

 * @PSL_ERR_TO_LOWER: Failed to convert utf-16 to lowercase.

 * @PSL_ERR_TO_UTF8: Failed to convert utf-16 to utf-8.

 * @PSL_ERR_NO_MEM: Failed to allocate memory.

 *

 * Return codes for PSL functions.

 * Negative return codes mean failure.

 * Positive values are reserved for non-error return codes.

 */

typedef enum {

	PSL_SUCCESS = 0,

	PSL_ERR_INVALID_ARG = -1,

	PSL_ERR_CONVERTER = -2, /* failed to open libicu utf-16 converter */

	PSL_ERR_TO_UTF16 = -3,  /* failed to convert to utf-16 */

	PSL_ERR_TO_LOWER = -4,  /* failed to convert utf-16 to lowercase */

	PSL_ERR_TO_UTF8 = -5,   /* failed to convert utf-16 to utf-8 */

	PSL_ERR_NO_MEM = -6    /* failed to allocate memory */

} psl_error_t;

typedef struct _psl_ctx_st psl_ctx_t;

/* frees PSL context */

PSL_API

void

	psl_free(psl_ctx_t *psl);

/* frees memory allocated by libpsl routines */

PSL_API

void

	psl_free_string(char *str);

/* loads PSL data from file */

PSL_API

psl_ctx_t *

	psl_load_file(const char *fname);

/* loads PSL data from FILE pointer */

PSL_API

psl_ctx_t *

	psl_load_fp(FILE *fp);

/* retrieves builtin PSL data */

PSL_API

const psl_ctx_t *

	psl_builtin(void);

/* retrieves most recent PSL data */

PSL_API

psl_ctx_t *

	psl_latest(const char *fname);

/* checks whether domain is a public suffix or not */

PSL_API

int

	psl_is_public_suffix(const psl_ctx_t *psl, const char *domain);

/* checks whether domain is a public suffix regarding the type or not */

PSL_API

int

	psl_is_public_suffix2(const psl_ctx_t *psl, const char *domain, int type);

/* checks whether cookie_domain is acceptable for domain or not */

PSL_API

int

	psl_is_cookie_domain_acceptable(const psl_ctx_t *psl, const char *hostname, const char *cookie_domain);

/* returns the longest not registrable domain within 'domain' or NULL if none found */

PSL_API

const char *

	psl_unregistrable_domain(const psl_ctx_t *psl, const char *domain);

/* returns the shortest possible registrable domain part or NULL if domain is not registrable at all */

PSL_API

const char *

	psl_registrable_domain(const psl_ctx_t *psl, const char *domain);

/* convert a string into lowercase UTF-8 */

PSL_API

psl_error_t

	psl_str_to_utf8lower(const char *str, const char *encoding, const char *locale, char **lower);

/* does not include exceptions */

PSL_API

int

	psl_suffix_count(const psl_ctx_t *psl);

/* just counts exceptions */

PSL_API

int

	psl_suffix_exception_count(const psl_ctx_t *psl);

/* just counts wildcards */

PSL_API

int

	psl_suffix_wildcard_count(const psl_ctx_t *psl);

/* returns mtime of PSL source file */

PSL_API

time_t

	psl_builtin_file_time(void);

/* returns SHA1 checksum (hex-encoded, lowercase) of PSL source file */

PSL_API

const char *

	psl_builtin_sha1sum(void);

/* returns file name of PSL source file */

PSL_API

const char *

	psl_builtin_filename(void);

/* returns name of distribution PSL data file */

PSL_API

const char *

	psl_dist_filename(void);

/* returns library version string */

PSL_API

const char *

	psl_get_version(void);

/* checks library version number */

PSL_API

int

	psl_check_version_number(int version);

/* returns whether the built-in data is outdated or not */

PSL_API

int

	psl_builtin_outdated(void);

#ifdef  __cplusplus

}

#endif

#endif /* LIBPSL_LIBPSL_H */