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|
/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 2009 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 through the world-wide-web at the following url: |
| 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: Pierre A. Joye <pierre@php.net> |
| Gustavo Lopes <cataphract@php.net> |
+----------------------------------------------------------------------+
*/
/* $Id: idn.c 319781 2011-11-24 22:45:50Z cataphract $ */
/* {{{ includes */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <php.h>
#include <unicode/uidna.h>
#include <unicode/ustring.h>
#include "ext/standard/php_string.h"
#include "intl_error.h"
#include "intl_convert.h"
/* }}} */
#ifdef UIDNA_INFO_INITIALIZER
#define HAVE_46_API 1 /* has UTS#46 API (introduced in ICU 4.6) */
#endif
enum {
INTL_IDN_VARIANT_2003 = 0,
INTL_IDN_VARIANT_UTS46
};
/* {{{ grapheme_register_constants
* Register API constants
*/
void idn_register_constants( INIT_FUNC_ARGS )
{
/* OPTIONS */
/* Option to prohibit processing of unassigned codepoints in the input and
do not check if the input conforms to STD-3 ASCII rules. */
REGISTER_LONG_CONSTANT("IDNA_DEFAULT", UIDNA_DEFAULT, CONST_CS | CONST_PERSISTENT);
/* Option to allow processing of unassigned codepoints in the input */
REGISTER_LONG_CONSTANT("IDNA_ALLOW_UNASSIGNED", UIDNA_ALLOW_UNASSIGNED, CONST_CS | CONST_PERSISTENT);
/* Option to check if input conforms to STD-3 ASCII rules */
REGISTER_LONG_CONSTANT("IDNA_USE_STD3_RULES", UIDNA_USE_STD3_RULES, CONST_CS | CONST_PERSISTENT);
#ifdef HAVE_46_API
/* Option to check for whether the input conforms to the BiDi rules.
* Ignored by the IDNA2003 implementation. (IDNA2003 always performs a BiDi check.) */
REGISTER_LONG_CONSTANT("IDNA_CHECK_BIDI", UIDNA_CHECK_BIDI, CONST_CS | CONST_PERSISTENT);
/* Option to check for whether the input conforms to the CONTEXTJ rules.
* Ignored by the IDNA2003 implementation. (The CONTEXTJ check is new in IDNA2008.) */
REGISTER_LONG_CONSTANT("IDNA_CHECK_CONTEXTJ", UIDNA_CHECK_CONTEXTJ, CONST_CS | CONST_PERSISTENT);
/* Option for nontransitional processing in ToASCII().
* By default, ToASCII() uses transitional processing.
* Ignored by the IDNA2003 implementation. */
REGISTER_LONG_CONSTANT("IDNA_NONTRANSITIONAL_TO_ASCII", UIDNA_NONTRANSITIONAL_TO_ASCII, CONST_CS | CONST_PERSISTENT);
/* Option for nontransitional processing in ToUnicode().
* By default, ToUnicode() uses transitional processing.
* Ignored by the IDNA2003 implementation. */
REGISTER_LONG_CONSTANT("IDNA_NONTRANSITIONAL_TO_UNICODE", UIDNA_NONTRANSITIONAL_TO_UNICODE, CONST_CS | CONST_PERSISTENT);
#endif
/* VARIANTS */
REGISTER_LONG_CONSTANT("INTL_IDNA_VARIANT_2003", INTL_IDN_VARIANT_2003, CONST_CS | CONST_PERSISTENT);
#ifdef HAVE_46_API
REGISTER_LONG_CONSTANT("INTL_IDNA_VARIANT_UTS46", INTL_IDN_VARIANT_UTS46, CONST_CS | CONST_PERSISTENT);
#endif
#ifdef HAVE_46_API
/* PINFO ERROR CODES */
REGISTER_LONG_CONSTANT("IDNA_ERROR_EMPTY_LABEL", UIDNA_ERROR_EMPTY_LABEL, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("IDNA_ERROR_LABEL_TOO_LONG", UIDNA_ERROR_LABEL_TOO_LONG, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("IDNA_ERROR_DOMAIN_NAME_TOO_LONG", UIDNA_ERROR_DOMAIN_NAME_TOO_LONG, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("IDNA_ERROR_LEADING_HYPHEN", UIDNA_ERROR_LEADING_HYPHEN, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("IDNA_ERROR_TRAILING_HYPHEN", UIDNA_ERROR_TRAILING_HYPHEN, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("IDNA_ERROR_HYPHEN_3_4", UIDNA_ERROR_HYPHEN_3_4, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("IDNA_ERROR_LEADING_COMBINING_MARK", UIDNA_ERROR_LEADING_COMBINING_MARK, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("IDNA_ERROR_DISALLOWED", UIDNA_ERROR_DISALLOWED, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("IDNA_ERROR_PUNYCODE", UIDNA_ERROR_PUNYCODE, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("IDNA_ERROR_LABEL_HAS_DOT", UIDNA_ERROR_LABEL_HAS_DOT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("IDNA_ERROR_INVALID_ACE_LABEL", UIDNA_ERROR_INVALID_ACE_LABEL, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("IDNA_ERROR_BIDI", UIDNA_ERROR_BIDI, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("IDNA_ERROR_CONTEXTJ", UIDNA_ERROR_CONTEXTJ, CONST_CS | CONST_PERSISTENT);
#endif
}
/* }}} */
enum {
INTL_IDN_TO_ASCII = 0,
INTL_IDN_TO_UTF8
};
/* like INTL_CHECK_STATUS, but as a function and varying the name of the func */
static int php_intl_idn_check_status(UErrorCode err, const char *msg, int mode TSRMLS_DC)
{
intl_error_set_code(NULL, err TSRMLS_CC);
if (U_FAILURE(err)) {
char *buff;
spprintf(&buff, 0, "%s: %s",
mode == INTL_IDN_TO_ASCII ? "idn_to_ascii" : "idn_to_utf8",
msg);
intl_error_set_custom_msg(NULL, buff, 1 TSRMLS_CC);
efree(buff);
return FAILURE;
}
return SUCCESS;
}
static inline void php_intl_bad_args(const char *msg, int mode TSRMLS_DC)
{
php_intl_idn_check_status(U_ILLEGAL_ARGUMENT_ERROR, msg, mode TSRMLS_CC);
}
#ifdef HAVE_46_API
static void php_intl_idn_to_46(INTERNAL_FUNCTION_PARAMETERS,
const char *domain, int domain_len, uint32_t option, int mode, zval *idna_info)
{
UErrorCode status = U_ZERO_ERROR;
UIDNA *uts46;
int32_t len;
int32_t buffer_capac = 255; /* no domain name may exceed this */
char *buffer = emalloc(buffer_capac);
UIDNAInfo info = UIDNA_INFO_INITIALIZER;
int buffer_used = 0;
uts46 = uidna_openUTS46(option, &status);
if (php_intl_idn_check_status(status, "failed to open UIDNA instance",
mode TSRMLS_CC) == FAILURE) {
efree(buffer);
RETURN_FALSE;
}
if (mode == INTL_IDN_TO_ASCII) {
len = uidna_nameToASCII_UTF8(uts46, domain, (int32_t)domain_len,
buffer, buffer_capac, &info, &status);
} else {
len = uidna_nameToUnicodeUTF8(uts46, domain, (int32_t)domain_len,
buffer, buffer_capac, &info, &status);
}
if (php_intl_idn_check_status(status, "failed to convert name",
mode TSRMLS_CC) == FAILURE) {
uidna_close(uts46);
efree(buffer);
RETURN_FALSE;
}
if (len >= 255) {
php_error_docref(NULL TSRMLS_CC, E_ERROR, "ICU returned an unexpected length");
}
buffer[len] = '\0';
if (info.errors == 0) {
RETVAL_STRINGL(buffer, len, 0);
buffer_used = 1;
} else {
RETVAL_FALSE;
}
if (idna_info) {
if (buffer_used) { /* used in return_value then */
zval_addref_p(return_value);
add_assoc_zval_ex(idna_info, "result", sizeof("result"), return_value);
} else {
zval *zv;
ALLOC_INIT_ZVAL(zv);
ZVAL_STRINGL(zv, buffer, len, 0);
buffer_used = 1;
add_assoc_zval_ex(idna_info, "result", sizeof("result"), zv);
}
add_assoc_bool_ex(idna_info, "isTransitionalDifferent",
sizeof("isTransitionalDifferent"), info.isTransitionalDifferent);
add_assoc_long_ex(idna_info, "errors", sizeof("errors"), (long)info.errors);
}
if (!buffer_used) {
efree(buffer);
}
uidna_close(uts46);
}
#endif
static void php_intl_idn_to(INTERNAL_FUNCTION_PARAMETERS,
const char *domain, int domain_len, uint32_t option, int mode)
{
UChar* ustring = NULL;
int ustring_len = 0;
UErrorCode status;
char *converted_utf8;
int32_t converted_utf8_len;
UChar converted[MAXPATHLEN];
int32_t converted_ret_len;
/* convert the string to UTF-16. */
status = U_ZERO_ERROR;
intl_convert_utf8_to_utf16(&ustring, &ustring_len, domain, domain_len, &status);
if (U_FAILURE(status)) {
intl_error_set_code(NULL, status TSRMLS_CC);
/* Set error messages. */
intl_error_set_custom_msg( NULL, "Error converting input string to UTF-16", 0 TSRMLS_CC );
if (ustring) {
efree(ustring);
}
RETURN_FALSE;
} else {
UParseError parse_error;
status = U_ZERO_ERROR;
if (mode == INTL_IDN_TO_ASCII) {
converted_ret_len = uidna_IDNToASCII(ustring, ustring_len, converted, MAXPATHLEN, (int32_t)option, &parse_error, &status);
} else {
converted_ret_len = uidna_IDNToUnicode(ustring, ustring_len, converted, MAXPATHLEN, (int32_t)option, &parse_error, &status);
}
efree(ustring);
if (U_FAILURE(status)) {
intl_error_set( NULL, status, "idn_to_ascii: cannot convert to ASCII", 0 TSRMLS_CC );
RETURN_FALSE;
}
status = U_ZERO_ERROR;
intl_convert_utf16_to_utf8(&converted_utf8, &converted_utf8_len, converted, converted_ret_len, &status);
if (U_FAILURE(status)) {
/* Set global error code. */
intl_error_set_code(NULL, status TSRMLS_CC);
/* Set error messages. */
intl_error_set_custom_msg( NULL, "Error converting output string to UTF-8", 0 TSRMLS_CC );
efree(converted_utf8);
RETURN_FALSE;
}
}
/* return the allocated string, not a duplicate */
RETURN_STRINGL(((char *)converted_utf8), converted_utf8_len, 0);
}
static void php_intl_idn_handoff(INTERNAL_FUNCTION_PARAMETERS, int mode)
{
char *domain;
int domain_len;
long option = 0,
variant = INTL_IDN_VARIANT_2003;
zval *idna_info = NULL;
intl_error_reset(NULL TSRMLS_CC);
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|llz",
&domain, &domain_len, &option, &variant, &idna_info) == FAILURE) {
php_intl_bad_args("bad arguments", mode TSRMLS_CC);
RETURN_NULL(); /* don't set FALSE because that's not the way it was before... */
}
#ifdef HAVE_46_API
if (variant != INTL_IDN_VARIANT_2003 && variant != INTL_IDN_VARIANT_UTS46) {
php_intl_bad_args("invalid variant, must be one of {"
"INTL_IDNA_VARIANT_2003, INTL_IDNA_VARIANT_UTS46}", mode TSRMLS_CC);
RETURN_FALSE;
}
#else
if (variant != INTL_IDN_VARIANT_2003) {
php_intl_bad_args("invalid variant, PHP was compiled against "
"an old version of ICU and only supports INTL_IDN_VARIANT_2003",
mode TSRMLS_CC);
RETURN_FALSE;
}
#endif
if (domain_len < 1) {
php_intl_bad_args("empty domain name", mode TSRMLS_CC);
RETURN_FALSE;
}
if (domain_len > INT32_MAX - 1) {
php_intl_bad_args("domain name too large", mode TSRMLS_CC);
RETURN_FALSE;
}
/* don't check options; it wasn't checked before */
if (idna_info != NULL) {
if (variant == INTL_IDN_VARIANT_2003) {
php_error_docref0(NULL TSRMLS_CC, E_NOTICE,
"4 arguments were provided, but INTL_IDNA_VARIANT_2003 only "
"takes 3 - extra argument ignored");
} else {
zval_dtor(idna_info);
array_init(idna_info);
}
}
if (variant == INTL_IDN_VARIANT_2003) {
php_intl_idn_to(INTERNAL_FUNCTION_PARAM_PASSTHRU,
domain, domain_len, (uint32_t)option, mode);
}
#ifdef HAVE_46_API
else {
php_intl_idn_to_46(INTERNAL_FUNCTION_PARAM_PASSTHRU, domain, domain_len,
(uint32_t)option, mode, idna_info);
}
#endif
}
/* {{{ proto int idn_to_ascii(string domain[, int options[, int variant[, array &idna_info]]])
Converts an Unicode domain to ASCII representation, as defined in the IDNA RFC */
PHP_FUNCTION(idn_to_ascii)
{
php_intl_idn_handoff(INTERNAL_FUNCTION_PARAM_PASSTHRU, INTL_IDN_TO_ASCII);
}
/* }}} */
/* {{{ proto int idn_to_utf8(string domain[, int options[, int variant[, array &idna_info]]])
Converts an ASCII representation of the domain to Unicode (UTF-8), as defined in the IDNA RFC */
PHP_FUNCTION(idn_to_utf8)
{
php_intl_idn_handoff(INTERNAL_FUNCTION_PARAM_PASSTHRU, INTL_IDN_TO_UTF8);
}
/* }}} */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: fdm=marker
* vim: noet sw=4 ts=4
*/
|