php-src/win32/codepage.c
Nikita Popov a31f46421d Allow exceptions in __toString()
RFC: https://wiki.php.net/rfc/tostring_exceptions

And convert some object to string conversion related recoverable
fatal errors into Error exceptions.

Improve exception safety of internal code performing string
conversions.
2019-06-05 14:25:07 +02:00

715 lines
17 KiB
C

/*
+----------------------------------------------------------------------+
| PHP Version 7 |
+----------------------------------------------------------------------+
| Copyright (c) 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: Anatol Belski <ab@php.net> |
+----------------------------------------------------------------------+
*/
#include <assert.h>
#include "php.h"
#include "SAPI.h"
#include <emmintrin.h>
#include "win32/console.h"
ZEND_TLS const struct php_win32_cp *cur_cp = NULL;
ZEND_TLS const struct php_win32_cp *orig_cp = NULL;
ZEND_TLS const struct php_win32_cp *cur_out_cp = NULL;
ZEND_TLS const struct php_win32_cp *orig_out_cp = NULL;
ZEND_TLS const struct php_win32_cp *cur_in_cp = NULL;
ZEND_TLS const struct php_win32_cp *orig_in_cp = NULL;
#include "cp_enc_map.c"
__forceinline static wchar_t *php_win32_cp_to_w_int(const char* in, size_t in_len, size_t *out_len, UINT cp, DWORD flags)
{/*{{{*/
wchar_t *ret;
int ret_len, tmp_len;
if (!in || in_len > (size_t)INT_MAX) {
SET_ERRNO_FROM_WIN32_CODE(ERROR_INVALID_PARAMETER);
return NULL;
}
assert(in_len ? (in[in_len] == L'\0') : 1);
tmp_len = !in_len ? -1 : (int)in_len + 1;
ret_len = MultiByteToWideChar(cp, flags, in, tmp_len, NULL, 0);
if (ret_len == 0) {
SET_ERRNO_FROM_WIN32_CODE(GetLastError());
return NULL;
}
ret = malloc(ret_len * sizeof(wchar_t));
if (!ret) {
SET_ERRNO_FROM_WIN32_CODE(ERROR_OUTOFMEMORY);
return NULL;
}
tmp_len = MultiByteToWideChar(cp, flags, in, tmp_len, ret, ret_len);
if (tmp_len == 0) {
free(ret);
SET_ERRNO_FROM_WIN32_CODE(GetLastError());
return NULL;
}
assert(ret ? tmp_len == ret_len : 1);
assert(ret && !in_len ? wcslen(ret) == ret_len - 1 : 1);
ret[ret_len-1] = L'\0';
if (PHP_WIN32_CP_IGNORE_LEN_P != out_len) {
*out_len = ret_len - 1;
}
return ret;
}/*}}}*/
PW32CP wchar_t *php_win32_cp_conv_utf8_to_w(const char* in, size_t in_len, size_t *out_len)
{/*{{{*/
return php_win32_cp_to_w_int(in, in_len, out_len, CP_UTF8, MB_ERR_INVALID_CHARS);
}/*}}}*/
PW32CP wchar_t *php_win32_cp_conv_cur_to_w(const char* in, size_t in_len, size_t *out_len)
{/*{{{*/
wchar_t *ret;
ret = php_win32_cp_to_w_int(in, in_len, out_len, cur_cp->id, cur_cp->from_w_fl);
return ret;
}/*}}}*/
PW32CP wchar_t *php_win32_cp_conv_to_w(DWORD cp, DWORD flags, const char* in, size_t in_len, size_t *out_len)
{/*{{{*/
return php_win32_cp_to_w_int(in, in_len, out_len, cp, flags);
}/*}}}*/
#define ASCII_FAIL_RETURN() \
if (PHP_WIN32_CP_IGNORE_LEN_P != out_len) { \
*out_len = 0; \
} \
return NULL;
PW32CP wchar_t *php_win32_cp_conv_ascii_to_w(const char* in, size_t in_len, size_t *out_len)
{/*{{{*/
wchar_t *ret, *ret_idx;
const char *idx = in, *end;
char ch_err = 0;
#if PHP_DEBUG
size_t save_in_len = in_len;
#endif
assert(in && in_len ? in[in_len] == '\0' : 1);
if (!in) {
SET_ERRNO_FROM_WIN32_CODE(ERROR_INVALID_PARAMETER);
return NULL;
} else if (0 == in_len) {
/* Not binary safe. */
in_len = strlen(in);
}
end = in + in_len;
if (in_len > 15) {
const char *aidx = (const char *)ZEND_SLIDE_TO_ALIGNED16(in);
/* Process unaligned chunk. */
while (idx < aidx) {
ch_err |= *idx;
idx++;
}
if (ch_err & 0x80) {
ASCII_FAIL_RETURN()
}
/* Process aligned chunk. */
__m128i vec_err = _mm_setzero_si128();
while (end - idx > 15) {
const __m128i block = _mm_load_si128((__m128i *)idx);
vec_err = _mm_or_si128(vec_err, block);
idx += 16;
}
if (_mm_movemask_epi8(vec_err)) {
ASCII_FAIL_RETURN()
}
}
/* Process the trailing part, or otherwise process string < 16 bytes. */
while (idx < end) {
ch_err |= *idx;
idx++;
}
if (ch_err & 0x80) {
ASCII_FAIL_RETURN()
}
ret = malloc((in_len+1)*sizeof(wchar_t));
if (!ret) {
SET_ERRNO_FROM_WIN32_CODE(ERROR_OUTOFMEMORY);
return NULL;
}
ret_idx = ret;
idx = in;
if (in_len > 15) {
const char *aidx = (const char *)ZEND_SLIDE_TO_ALIGNED16(in);
/* Process unaligned chunk. */
while (idx < aidx) {
*ret_idx++ = (wchar_t)*idx++;
}
/* Process aligned chunk. */
if (end - idx > 15) {
const __m128i mask = _mm_set1_epi32(0);
while (end - idx > 15) {
const __m128i block = _mm_load_si128((__m128i *)idx);
{
const __m128i lo = _mm_unpacklo_epi8(block, mask);
_mm_storeu_si128((__m128i *)ret_idx, lo);
}
ret_idx += 8;
{
const __m128i hi = _mm_unpackhi_epi8(block, mask);
_mm_storeu_si128((__m128i *)ret_idx, hi);
}
idx += 16;
ret_idx += 8;
}
}
}
/* Process the trailing part, or otherwise process string < 16 bytes. */
while (idx < end) {
*ret_idx++ = (wchar_t)*idx++;
}
ret[in_len] = L'\0';
assert(ret && !save_in_len ? wcslen(ret) == in_len : 1);
if (PHP_WIN32_CP_IGNORE_LEN_P != out_len) {
*out_len = in_len;
}
return ret;
}/*}}}*/
#undef ASCII_FAIL_RETURN
__forceinline static char *php_win32_cp_from_w_int(const wchar_t* in, size_t in_len, size_t *out_len, UINT cp, DWORD flags)
{/*{{{*/
int r;
int target_len, tmp_len;
char* target;
if (!in || in_len > INT_MAX) {
SET_ERRNO_FROM_WIN32_CODE(ERROR_INVALID_PARAMETER);
return NULL;
}
assert(in_len ? in[in_len] == '\0' : 1);
tmp_len = !in_len ? -1 : (int)in_len + 1;
target_len = WideCharToMultiByte(cp, flags, in, tmp_len, NULL, 0, NULL, NULL);
if (target_len == 0) {
SET_ERRNO_FROM_WIN32_CODE(GetLastError());
return NULL;
}
target = malloc(target_len);
if (target == NULL) {
SET_ERRNO_FROM_WIN32_CODE(ERROR_OUTOFMEMORY);
return NULL;
}
r = WideCharToMultiByte(cp, flags, in, tmp_len, target, target_len, NULL, NULL);
if (r == 0) {
free(target);
SET_ERRNO_FROM_WIN32_CODE(GetLastError());
return NULL;
}
assert(target ? r == target_len : 1);
assert(target && !in_len ? strlen(target) == target_len - 1 : 1);
target[target_len-1] = '\0';
if (PHP_WIN32_CP_IGNORE_LEN_P != out_len) {
*out_len = target_len - 1;
}
return target;
}/*}}}*/
PW32CP char *php_win32_cp_conv_w_to_utf8(const wchar_t* in, size_t in_len, size_t *out_len)
{/*{{{*/
return php_win32_cp_from_w_int(in, in_len, out_len, CP_UTF8, WC_ERR_INVALID_CHARS);
}/*}}}*/
PW32CP char *php_win32_cp_conv_w_to_cur(const wchar_t* in, size_t in_len, size_t *out_len)
{/*{{{*/
char *ret;
ret = php_win32_cp_from_w_int(in, in_len, out_len, cur_cp->id, cur_cp->from_w_fl);
return ret;
}/*}}}*/
PW32CP char *php_win32_cp_conv_from_w(DWORD cp, DWORD flags, const wchar_t* in, size_t in_len, size_t *out_len)
{/*{{{*/
return php_win32_cp_from_w_int(in, in_len, out_len, cp, flags);
}/*}}}*/
/* This is only usable after the startup phase*/
__forceinline static char *php_win32_cp_get_enc(void)
{/*{{{*/
char *enc = NULL;
const zend_encoding *zenc;
if (PG(internal_encoding) && PG(internal_encoding)[0]) {
enc = PG(internal_encoding);
} else if (SG(default_charset) && SG(default_charset)[0] ) {
enc = SG(default_charset);
} else {
zenc = zend_multibyte_get_internal_encoding();
if (zenc) {
enc = (char *)zend_multibyte_get_encoding_name(zenc);
}
}
return enc;
}/*}}}*/
PW32CP const struct php_win32_cp *php_win32_cp_get_current(void)
{/*{{{*/
return cur_cp;
}/*}}}*/
PW32CP const struct php_win32_cp *php_win32_cp_get_orig(void)
{/*{{{*/
return orig_cp;
}/*}}}*/
PW32CP const struct php_win32_cp *php_win32_cp_get_by_id(DWORD id)
{/*{{{*/
size_t i;
if (id < php_win32_cp_map[0].id) {
switch (id) {
case CP_ACP:
id = GetACP();
break;
case CP_OEMCP:
id = GetOEMCP();
break;
}
}
for (i = 0; i < sizeof(php_win32_cp_map)/sizeof(struct php_win32_cp); i++) {
if (php_win32_cp_map[i].id == id) {
return &php_win32_cp_map[i];
}
}
SET_ERRNO_FROM_WIN32_CODE(ERROR_NOT_FOUND);
return NULL;
}/*}}}*/
PW32CP const struct php_win32_cp *php_win32_cp_get_by_enc(const char *enc)
{/*{{{*/
size_t enc_len = 0, i;
if (!enc || !enc[0]) {
return php_win32_cp_get_by_id(65001U);
}
enc_len = strlen(enc);
for (i = 0; i < sizeof(php_win32_cp_map)/sizeof(struct php_win32_cp); i++) {
const struct php_win32_cp *cp = &php_win32_cp_map[i];
if (!cp->name || !cp->name[0]) {
continue;
}
if (0 == zend_binary_strcasecmp(enc, enc_len, cp->name, strlen(cp->name))) {
return cp;
}
if (cp->enc) {
char *start = cp->enc, *idx;
idx = strpbrk(start, "|");
while (NULL != idx) {
if (0 == zend_binary_strcasecmp(enc, enc_len, start, idx - start)) {
return cp;
}
start = idx + 1;
idx = strpbrk(start, "|");
}
/* Last in the list, or single charset specified. */
if (0 == zend_binary_strcasecmp(enc, enc_len, start, strlen(start))) {
return cp;
}
}
}
return php_win32_cp_get_by_id(GetACP());
}/*}}}*/
PW32CP const struct php_win32_cp *php_win32_cp_set_by_id(DWORD id)
{/*{{{*/
const struct php_win32_cp *tmp;
if (!IsValidCodePage(id)) {
SET_ERRNO_FROM_WIN32_CODE(ERROR_INVALID_PARAMETER);
return NULL;
}
tmp = php_win32_cp_get_by_id(id);
if (tmp) {
cur_cp = tmp;
}
return cur_cp;
}/*}}}*/
PW32CP BOOL php_win32_cp_use_unicode(void)
{/*{{{*/
return 65001 == cur_cp->id;
}/*}}}*/
PW32CP wchar_t *php_win32_cp_env_any_to_w(const char* env)
{/*{{{*/
wchar_t *envw = NULL, ew[32760];
char *cur = (char *)env, *prev;
size_t bin_len = 0;
if (!env) {
SET_ERRNO_FROM_WIN32_CODE(ERROR_INVALID_PARAMETER);
return NULL;
}
do {
wchar_t *tmp;
tmp = php_win32_cp_any_to_w(cur);
if (tmp) {
size_t tmp_len = wcslen(tmp) + 1;
memmove(ew + bin_len, tmp, tmp_len * sizeof(wchar_t));
free(tmp);
bin_len += tmp_len;
}
prev = cur;
} while (NULL != (cur = strchr(prev, '\0')) && cur++ && *cur && bin_len + (cur - prev) < 32760);
envw = (wchar_t *) malloc((bin_len + 3) * sizeof(wchar_t));
if (!envw) {
SET_ERRNO_FROM_WIN32_CODE(ERROR_OUTOFMEMORY);
return NULL;
}
memmove(envw, ew, bin_len * sizeof(wchar_t));
envw[bin_len] = L'\0';
envw[bin_len + 1] = L'\0';
envw[bin_len + 2] = L'\0';
return envw;
}/*}}}*/
static BOOL php_win32_cp_cli_io_setup(void)
{/*{{{*/
BOOL ret = TRUE;
if (PG(input_encoding) && PG(input_encoding)[0]) {
cur_in_cp = php_win32_cp_get_by_enc(PG(input_encoding));
if (!cur_in_cp) {
cur_in_cp = cur_cp;
}
} else {
cur_in_cp = cur_cp;
}
if (PG(output_encoding) && PG(output_encoding)[0]) {
cur_out_cp = php_win32_cp_get_by_enc(PG(output_encoding));
if (!cur_out_cp) {
cur_out_cp = cur_cp;
}
} else {
cur_out_cp = cur_cp;
}
if(php_get_module_initialized()) {
ret = SetConsoleCP(cur_in_cp->id) && SetConsoleOutputCP(cur_out_cp->id);
}
return ret;
}/*}}}*/
PW32CP const struct php_win32_cp *php_win32_cp_do_setup(const char *enc)
{/*{{{*/
if (!enc) {
enc = php_win32_cp_get_enc();
}
cur_cp = php_win32_cp_get_by_enc(enc);
if (!orig_cp) {
orig_cp = php_win32_cp_get_by_id(GetACP());
}
if (php_win32_console_is_cli_sapi()) {
if (!orig_in_cp) {
orig_in_cp = php_win32_cp_get_by_id(GetConsoleCP());
if (!orig_in_cp) {
orig_in_cp = orig_cp;
}
}
if (!orig_out_cp) {
orig_out_cp = php_win32_cp_get_by_id(GetConsoleOutputCP());
if (!orig_out_cp) {
orig_out_cp = orig_cp;
}
}
php_win32_cp_cli_io_setup();
}
return cur_cp;
}/*}}}*/
PW32CP const struct php_win32_cp *php_win32_cp_do_update(const char *enc)
{/*{{{*/
if (!enc) {
enc = php_win32_cp_get_enc();
}
cur_cp = php_win32_cp_get_by_enc(enc);
if (php_win32_console_is_cli_sapi()) {
php_win32_cp_cli_do_setup(cur_cp->id);
}
return cur_cp;
}/*}}}*/
PW32CP const struct php_win32_cp *php_win32_cp_shutdown(void)
{/*{{{*/
return orig_cp;
}/*}}}*/
/* php_win32_cp_setup() needs to have run before! */
PW32CP const struct php_win32_cp *php_win32_cp_cli_do_setup(DWORD id)
{/*{{{*/
const struct php_win32_cp *cp;
if (!orig_cp) {
php_win32_cp_setup();
}
if (id) {
cp = php_win32_cp_set_by_id(id);
} else {
cp = cur_cp;
}
if (!cp) {
return NULL;
}
if (php_win32_cp_cli_io_setup()) {
return cp;
}
return cp;
}/*}}}*/
PW32CP const struct php_win32_cp *php_win32_cp_cli_do_restore(DWORD id)
{/*{{{*/
BOOL cli_io_restored = TRUE;
if (orig_in_cp) {
cli_io_restored = cli_io_restored && SetConsoleCP(orig_in_cp->id);
}
if (orig_out_cp) {
cli_io_restored = cli_io_restored && SetConsoleOutputCP(orig_out_cp->id);
}
if (cli_io_restored && id) {
return php_win32_cp_set_by_id(id);
}
return NULL;
}/*}}}*/
/* Userspace functions, see basic_functions.* for arginfo and decls. */
/* {{{ proto bool sapi_windows_cp_set(int cp)
* Set process codepage. */
PHP_FUNCTION(sapi_windows_cp_set)
{
zend_long id;
const struct php_win32_cp *cp;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "l", &id) == FAILURE) {
return;
}
if (ZEND_LONG_UINT_OVFL(id)) {
php_error_docref(NULL, E_WARNING, "Argument %d is out of range", id);
RETURN_FALSE;
}
if (php_win32_console_is_cli_sapi()) {
cp = php_win32_cp_cli_do_setup((DWORD)id);
} else {
cp = php_win32_cp_set_by_id((DWORD)id);
}
if (!cp) {
php_error_docref(NULL, E_WARNING, "Failed to switch to codepage %d", id);
RETURN_FALSE;
}
RETURN_BOOL(cp->id == id);
}
/* }}} */
/* {{{ proto int sapi_windows_cp_get([string kind])
* Get process codepage. */
PHP_FUNCTION(sapi_windows_cp_get)
{
char *kind;
size_t kind_len = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "|s", &kind, &kind_len) == FAILURE) {
return;
}
if (kind_len == sizeof("ansi")-1 && !strncasecmp(kind, "ansi", kind_len)) {
RETURN_LONG(GetACP());
} else if (kind_len == sizeof("oem")-1 && !strncasecmp(kind, "oem", kind_len)) {
RETURN_LONG(GetOEMCP());
} else {
const struct php_win32_cp *cp = php_win32_cp_get_current();
RETURN_LONG(cp->id);
}
}
/* }}} */
/* {{{ proto bool sapi_windows_cp_is_utf8(void)
* Indicates whether the codepage is UTF-8 compatible. */
PHP_FUNCTION(sapi_windows_cp_is_utf8)
{
if (zend_parse_parameters_none() == FAILURE) {
return;
}
RETURN_BOOL(php_win32_cp_use_unicode());
}
/* }}} */
/* {{{ proto string sapi_windows_cp_conv(int|string in_codepage, int|string out_codepage, string subject)
* Convert string from one codepage to another. */
PHP_FUNCTION(sapi_windows_cp_conv)
{
char *subj, *ret;
size_t subj_len, ret_len, tmpw_len;
wchar_t *tmpw;
const struct php_win32_cp *in_cp, *out_cp;
zval *z_in_cp, *z_out_cp;
if (zend_parse_parameters(ZEND_NUM_ARGS(), "zzs", &z_in_cp, &z_out_cp, &subj, &subj_len) == FAILURE) {
return;
}
if (ZEND_SIZE_T_INT_OVFL(subj_len)) {
php_error_docref(NULL, E_WARNING, "String is too long");
RETURN_NULL();
}
if (IS_LONG == Z_TYPE_P(z_in_cp)) {
if (ZEND_LONG_UINT_OVFL(Z_LVAL_P(z_in_cp))) {
php_error_docref(NULL, E_WARNING, "Argument %d is out of range", Z_LVAL_P(z_in_cp));
RETURN_NULL();
}
in_cp = php_win32_cp_get_by_id((DWORD)Z_LVAL_P(z_in_cp));
if (!in_cp) {
php_error_docref(NULL, E_WARNING, "Invalid codepage %d", Z_LVAL_P(z_in_cp));
RETURN_NULL();
}
} else {
if (!try_convert_to_string(z_in_cp)) {
return;
}
in_cp = php_win32_cp_get_by_enc(Z_STRVAL_P(z_in_cp));
if (!in_cp) {
php_error_docref(NULL, E_WARNING, "Invalid charset %s", Z_STRVAL_P(z_in_cp));
RETURN_NULL();
}
}
if (IS_LONG == Z_TYPE_P(z_out_cp)) {
if (ZEND_LONG_UINT_OVFL(Z_LVAL_P(z_out_cp))) {
php_error_docref(NULL, E_WARNING, "Argument %d is out of range", Z_LVAL_P(z_out_cp));
RETURN_NULL();
}
out_cp = php_win32_cp_get_by_id((DWORD)Z_LVAL_P(z_out_cp));
if (!out_cp) {
php_error_docref(NULL, E_WARNING, "Invalid codepage %d", Z_LVAL_P(z_out_cp));
RETURN_NULL();
}
} else {
if (!try_convert_to_string(z_out_cp)) {
return;
}
out_cp = php_win32_cp_get_by_enc(Z_STRVAL_P(z_out_cp));
if (!out_cp) {
php_error_docref(NULL, E_WARNING, "Invalid charset %s", Z_STRVAL_P(z_out_cp));
RETURN_NULL();
}
}
tmpw = php_win32_cp_conv_to_w(in_cp->id, in_cp->to_w_fl, subj, subj_len, &tmpw_len);
if (!tmpw) {
php_error_docref(NULL, E_WARNING, "Wide char conversion failed");
RETURN_NULL();
}
ret = php_win32_cp_conv_from_w(out_cp->id, out_cp->from_w_fl, tmpw, tmpw_len, &ret_len);
if (!ret) {
free(tmpw);
php_error_docref(NULL, E_WARNING, "Wide char conversion failed");
RETURN_NULL();
}
RETVAL_STRINGL(ret, ret_len);
free(tmpw);
free(ret);
}
/* }}} */
/* }}} */