/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2014 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. |
+----------------------------------------------------------------------+
| Authors: Rui Hirokawa <rui_hirokawa@ybb.ne.jp> |
| Stig Bakken <ssb@php.net> |
| Moriyoshi Koizumi <moriyoshi@php.net> |
+----------------------------------------------------------------------+
*/
/* $Id: iconv.c,v 1.1.1.4 2014/06/15 20:03:49 misho Exp $ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "php_globals.h"
#include "ext/standard/info.h"
#include "main/php_output.h"
#include "SAPI.h"
#include "php_ini.h"
#ifdef HAVE_STDLIB_H
# include <stdlib.h>
#endif
#include <errno.h>
#include "php_iconv.h"
#ifdef HAVE_ICONV
#ifdef PHP_ICONV_H_PATH
#include PHP_ICONV_H_PATH
#else
#include <iconv.h>
#endif
#ifdef HAVE_GLIBC_ICONV
#include <gnu/libc-version.h>
#endif
#ifdef HAVE_LIBICONV
#undef iconv
#endif
#include "ext/standard/php_smart_str.h"
#include "ext/standard/base64.h"
#include "ext/standard/quot_print.h"
#define _php_iconv_memequal(a, b, c) \
((c) == sizeof(unsigned long) ? *((unsigned long *)(a)) == *((unsigned long *)(b)) : ((c) == sizeof(unsigned int) ? *((unsigned int *)(a)) == *((unsigned int *)(b)) : memcmp(a, b, c) == 0))
/* {{{ arginfo */
ZEND_BEGIN_ARG_INFO_EX(arginfo_iconv_strlen, 0, 0, 1)
ZEND_ARG_INFO(0, str)
ZEND_ARG_INFO(0, charset)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_iconv_substr, 0, 0, 2)
ZEND_ARG_INFO(0, str)
ZEND_ARG_INFO(0, offset)
ZEND_ARG_INFO(0, length)
ZEND_ARG_INFO(0, charset)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_iconv_strpos, 0, 0, 2)
ZEND_ARG_INFO(0, haystack)
ZEND_ARG_INFO(0, needle)
ZEND_ARG_INFO(0, offset)
ZEND_ARG_INFO(0, charset)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_iconv_strrpos, 0, 0, 2)
ZEND_ARG_INFO(0, haystack)
ZEND_ARG_INFO(0, needle)
ZEND_ARG_INFO(0, charset)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_iconv_mime_encode, 0, 0, 2)
ZEND_ARG_INFO(0, field_name)
ZEND_ARG_INFO(0, field_value)
ZEND_ARG_INFO(0, preference) /* ZEND_ARG_ARRAY_INFO(0, preference, 1) */
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_iconv_mime_decode, 0, 0, 1)
ZEND_ARG_INFO(0, encoded_string)
ZEND_ARG_INFO(0, mode)
ZEND_ARG_INFO(0, charset)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_iconv_mime_decode_headers, 0, 0, 1)
ZEND_ARG_INFO(0, headers)
ZEND_ARG_INFO(0, mode)
ZEND_ARG_INFO(0, charset)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_iconv, 0)
ZEND_ARG_INFO(0, in_charset)
ZEND_ARG_INFO(0, out_charset)
ZEND_ARG_INFO(0, str)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_iconv_set_encoding, 0)
ZEND_ARG_INFO(0, type)
ZEND_ARG_INFO(0, charset)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_iconv_get_encoding, 0, 0, 0)
ZEND_ARG_INFO(0, type)
ZEND_END_ARG_INFO()
/* }}} */
/* {{{ iconv_functions[]
*/
const zend_function_entry iconv_functions[] = {
PHP_RAW_NAMED_FE(iconv,php_if_iconv, arginfo_iconv)
PHP_FE(iconv_get_encoding, arginfo_iconv_get_encoding)
PHP_FE(iconv_set_encoding, arginfo_iconv_set_encoding)
PHP_FE(iconv_strlen, arginfo_iconv_strlen)
PHP_FE(iconv_substr, arginfo_iconv_substr)
PHP_FE(iconv_strpos, arginfo_iconv_strpos)
PHP_FE(iconv_strrpos, arginfo_iconv_strrpos)
PHP_FE(iconv_mime_encode, arginfo_iconv_mime_encode)
PHP_FE(iconv_mime_decode, arginfo_iconv_mime_decode)
PHP_FE(iconv_mime_decode_headers, arginfo_iconv_mime_decode_headers)
PHP_FE_END
};
/* }}} */
ZEND_DECLARE_MODULE_GLOBALS(iconv)
static PHP_GINIT_FUNCTION(iconv);
/* {{{ iconv_module_entry
*/
zend_module_entry iconv_module_entry = {
STANDARD_MODULE_HEADER,
"iconv",
iconv_functions,
PHP_MINIT(miconv),
PHP_MSHUTDOWN(miconv),
NULL,
NULL,
PHP_MINFO(miconv),
NO_VERSION_YET,
PHP_MODULE_GLOBALS(iconv),
PHP_GINIT(iconv),
NULL,
NULL,
STANDARD_MODULE_PROPERTIES_EX
};
/* }}} */
#ifdef COMPILE_DL_ICONV
ZEND_GET_MODULE(iconv)
#endif
/* {{{ PHP_GINIT_FUNCTION */
static PHP_GINIT_FUNCTION(iconv)
{
iconv_globals->input_encoding = NULL;
iconv_globals->output_encoding = NULL;
iconv_globals->internal_encoding = NULL;
}
/* }}} */
#if defined(HAVE_LIBICONV) && defined(ICONV_ALIASED_LIBICONV)
#define iconv libiconv
#endif
/* {{{ typedef enum php_iconv_enc_scheme_t */
typedef enum _php_iconv_enc_scheme_t {
PHP_ICONV_ENC_SCHEME_BASE64,
PHP_ICONV_ENC_SCHEME_QPRINT
} php_iconv_enc_scheme_t;
/* }}} */
#define PHP_ICONV_MIME_DECODE_STRICT (1<<0)
#define PHP_ICONV_MIME_DECODE_CONTINUE_ON_ERROR (1<<1)
/* {{{ prototypes */
static php_iconv_err_t _php_iconv_appendl(smart_str *d, const char *s, size_t l, iconv_t cd);
static php_iconv_err_t _php_iconv_appendc(smart_str *d, const char c, iconv_t cd);
static void _php_iconv_show_error(php_iconv_err_t err, const char *out_charset, const char *in_charset TSRMLS_DC);
static php_iconv_err_t _php_iconv_strlen(unsigned int *pretval, const char *str, size_t nbytes, const char *enc);
static php_iconv_err_t _php_iconv_substr(smart_str *pretval, const char *str, size_t nbytes, int offset, int len, const char *enc);
static php_iconv_err_t _php_iconv_strpos(unsigned int *pretval, const char *haystk, size_t haystk_nbytes, const char *ndl, size_t ndl_nbytes, int offset, const char *enc);
static php_iconv_err_t _php_iconv_mime_encode(smart_str *pretval, const char *fname, size_t fname_nbytes, const char *fval, size_t fval_nbytes, unsigned int max_line_len, const char *lfchars, php_iconv_enc_scheme_t enc_scheme, const char *out_charset, const char *enc);
static php_iconv_err_t _php_iconv_mime_decode(smart_str *pretval, const char *str, size_t str_nbytes, const char *enc, const char **next_pos, int mode);
static php_iconv_err_t php_iconv_stream_filter_register_factory(TSRMLS_D);
static php_iconv_err_t php_iconv_stream_filter_unregister_factory(TSRMLS_D);
static int php_iconv_output_conflict(const char *handler_name, size_t handler_name_len TSRMLS_DC);
static php_output_handler *php_iconv_output_handler_init(const char *name, size_t name_len, size_t chunk_size, int flags TSRMLS_DC);
static int php_iconv_output_handler(void **nothing, php_output_context *output_context);
/* }}} */
/* {{{ static globals */
static char _generic_superset_name[] = ICONV_UCS4_ENCODING;
#define GENERIC_SUPERSET_NAME _generic_superset_name
#define GENERIC_SUPERSET_NBYTES 4
/* }}} */
static PHP_INI_MH(OnUpdateStringIconvCharset)
{
if(new_value_length >= ICONV_CSNMAXLEN) {
return FAILURE;
}
OnUpdateString(entry, new_value, new_value_length, mh_arg1, mh_arg2, mh_arg3, stage TSRMLS_CC);
return SUCCESS;
}
/* {{{ PHP_INI
*/
PHP_INI_BEGIN()
STD_PHP_INI_ENTRY("iconv.input_encoding", ICONV_INPUT_ENCODING, PHP_INI_ALL, OnUpdateStringIconvCharset, input_encoding, zend_iconv_globals, iconv_globals)
STD_PHP_INI_ENTRY("iconv.output_encoding", ICONV_OUTPUT_ENCODING, PHP_INI_ALL, OnUpdateStringIconvCharset, output_encoding, zend_iconv_globals, iconv_globals)
STD_PHP_INI_ENTRY("iconv.internal_encoding", ICONV_INTERNAL_ENCODING, PHP_INI_ALL, OnUpdateStringIconvCharset, internal_encoding, zend_iconv_globals, iconv_globals)
PHP_INI_END()
/* }}} */
/* {{{ PHP_MINIT_FUNCTION */
PHP_MINIT_FUNCTION(miconv)
{
char *version = "unknown";
REGISTER_INI_ENTRIES();
#if HAVE_LIBICONV
{
static char buf[16];
snprintf(buf, sizeof(buf), "%d.%d",
((_libiconv_version >> 8) & 0x0f), (_libiconv_version & 0x0f));
version = buf;
}
#elif HAVE_GLIBC_ICONV
version = (char *)gnu_get_libc_version();
#elif defined(NETWARE)
version = "OS built-in";
#endif
#ifdef PHP_ICONV_IMPL
REGISTER_STRING_CONSTANT("ICONV_IMPL", PHP_ICONV_IMPL, CONST_CS | CONST_PERSISTENT);
#elif HAVE_LIBICONV
REGISTER_STRING_CONSTANT("ICONV_IMPL", "libiconv", CONST_CS | CONST_PERSISTENT);
#elif defined(NETWARE)
REGISTER_STRING_CONSTANT("ICONV_IMPL", "Novell", CONST_CS | CONST_PERSISTENT);
#else
REGISTER_STRING_CONSTANT("ICONV_IMPL", "unknown", CONST_CS | CONST_PERSISTENT);
#endif
REGISTER_STRING_CONSTANT("ICONV_VERSION", version, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("ICONV_MIME_DECODE_STRICT", PHP_ICONV_MIME_DECODE_STRICT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("ICONV_MIME_DECODE_CONTINUE_ON_ERROR", PHP_ICONV_MIME_DECODE_CONTINUE_ON_ERROR, CONST_CS | CONST_PERSISTENT);
if (php_iconv_stream_filter_register_factory(TSRMLS_C) != PHP_ICONV_ERR_SUCCESS) {
return FAILURE;
}
php_output_handler_alias_register(ZEND_STRL("ob_iconv_handler"), php_iconv_output_handler_init TSRMLS_CC);
php_output_handler_conflict_register(ZEND_STRL("ob_iconv_handler"), php_iconv_output_conflict TSRMLS_CC);
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MSHUTDOWN_FUNCTION */
PHP_MSHUTDOWN_FUNCTION(miconv)
{
php_iconv_stream_filter_unregister_factory(TSRMLS_C);
UNREGISTER_INI_ENTRIES();
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MINFO_FUNCTION */
PHP_MINFO_FUNCTION(miconv)
{
zval iconv_impl, iconv_ver;
zend_get_constant("ICONV_IMPL", sizeof("ICONV_IMPL")-1, &iconv_impl TSRMLS_CC);
zend_get_constant("ICONV_VERSION", sizeof("ICONV_VERSION")-1, &iconv_ver TSRMLS_CC);
php_info_print_table_start();
php_info_print_table_row(2, "iconv support", "enabled");
php_info_print_table_row(2, "iconv implementation", Z_STRVAL(iconv_impl));
php_info_print_table_row(2, "iconv library version", Z_STRVAL(iconv_ver));
php_info_print_table_end();
DISPLAY_INI_ENTRIES();
zval_dtor(&iconv_impl);
zval_dtor(&iconv_ver);
}
/* }}} */
static int php_iconv_output_conflict(const char *handler_name, size_t handler_name_len TSRMLS_DC)
{
if (php_output_get_level(TSRMLS_C)) {
if (php_output_handler_conflict(handler_name, handler_name_len, ZEND_STRL("ob_iconv_handler") TSRMLS_CC)
|| php_output_handler_conflict(handler_name, handler_name_len, ZEND_STRL("mb_output_handler") TSRMLS_CC)) {
return FAILURE;
}
}
return SUCCESS;
}
static php_output_handler *php_iconv_output_handler_init(const char *handler_name, size_t handler_name_len, size_t chunk_size, int flags TSRMLS_DC)
{
return php_output_handler_create_internal(handler_name, handler_name_len, php_iconv_output_handler, chunk_size, flags TSRMLS_CC);
}
static int php_iconv_output_handler(void **nothing, php_output_context *output_context)
{
char *s, *content_type, *mimetype = NULL;
int output_status, mimetype_len = 0;
PHP_OUTPUT_TSRMLS(output_context);
if (output_context->op & PHP_OUTPUT_HANDLER_START) {
output_status = php_output_get_status(TSRMLS_C);
if (output_status & PHP_OUTPUT_SENT) {
return FAILURE;
}
if (SG(sapi_headers).mimetype && !strncasecmp(SG(sapi_headers).mimetype, "text/", 5)) {
if ((s = strchr(SG(sapi_headers).mimetype,';')) == NULL){
mimetype = SG(sapi_headers).mimetype;
} else {
mimetype = SG(sapi_headers).mimetype;
mimetype_len = s - SG(sapi_headers).mimetype;
}
} else if (SG(sapi_headers).send_default_content_type) {
mimetype = SG(default_mimetype) ? SG(default_mimetype) : SAPI_DEFAULT_MIMETYPE;
}
if (mimetype != NULL && !(output_context->op & PHP_OUTPUT_HANDLER_CLEAN)) {
int len;
char *p = strstr(ICONVG(output_encoding), "//");
if (p) {
len = spprintf(&content_type, 0, "Content-Type:%.*s; charset=%.*s", mimetype_len ? mimetype_len : (int) strlen(mimetype), mimetype, (int)(p - ICONVG(output_encoding)), ICONVG(output_encoding));
} else {
len = spprintf(&content_type, 0, "Content-Type:%.*s; charset=%s", mimetype_len ? mimetype_len : (int) strlen(mimetype), mimetype, ICONVG(output_encoding));
}
if (content_type && SUCCESS == sapi_add_header(content_type, len, 0)) {
SG(sapi_headers).send_default_content_type = 0;
php_output_handler_hook(PHP_OUTPUT_HANDLER_HOOK_IMMUTABLE, NULL TSRMLS_CC);
}
}
}
if (output_context->in.used) {
output_context->out.free = 1;
_php_iconv_show_error(php_iconv_string(output_context->in.data, output_context->in.used, &output_context->out.data, &output_context->out.used, ICONVG(output_encoding), ICONVG(internal_encoding)), ICONVG(output_encoding), ICONVG(internal_encoding) TSRMLS_CC);
}
return SUCCESS;
}
/* {{{ _php_iconv_appendl() */
static php_iconv_err_t _php_iconv_appendl(smart_str *d, const char *s, size_t l, iconv_t cd)
{
const char *in_p = s;
size_t in_left = l;
char *out_p;
size_t out_left = 0;
size_t buf_growth = 128;
#if !ICONV_SUPPORTS_ERRNO
size_t prev_in_left = in_left;
#endif
if (in_p != NULL) {
while (in_left > 0) {
out_left = buf_growth - out_left;
{
size_t newlen;
smart_str_alloc((d), out_left, 0);
}
out_p = (d)->c + (d)->len;
if (iconv(cd, (char **)&in_p, &in_left, (char **) &out_p, &out_left) == (size_t)-1) {
#if ICONV_SUPPORTS_ERRNO
switch (errno) {
case EINVAL:
return PHP_ICONV_ERR_ILLEGAL_CHAR;
case EILSEQ:
return PHP_ICONV_ERR_ILLEGAL_SEQ;
case E2BIG:
break;
default:
return PHP_ICONV_ERR_UNKNOWN;
}
#else
if (prev_in_left == in_left) {
return PHP_ICONV_ERR_UNKNOWN;
}
#endif
}
#if !ICONV_SUPPORTS_ERRNO
prev_in_left = in_left;
#endif
(d)->len += (buf_growth - out_left);
buf_growth <<= 1;
}
} else {
for (;;) {
out_left = buf_growth - out_left;
{
size_t newlen;
smart_str_alloc((d), out_left, 0);
}
out_p = (d)->c + (d)->len;
if (iconv(cd, NULL, NULL, (char **) &out_p, &out_left) == (size_t)0) {
(d)->len += (buf_growth - out_left);
break;
} else {
#if ICONV_SUPPORTS_ERRNO
if (errno != E2BIG) {
return PHP_ICONV_ERR_UNKNOWN;
}
#else
if (out_left != 0) {
return PHP_ICONV_ERR_UNKNOWN;
}
#endif
}
(d)->len += (buf_growth - out_left);
buf_growth <<= 1;
}
}
return PHP_ICONV_ERR_SUCCESS;
}
/* }}} */
/* {{{ _php_iconv_appendc() */
static php_iconv_err_t _php_iconv_appendc(smart_str *d, const char c, iconv_t cd)
{
return _php_iconv_appendl(d, &c, 1, cd);
}
/* }}} */
/* {{{ php_iconv_string()
*/
PHP_ICONV_API php_iconv_err_t php_iconv_string(const char *in_p, size_t in_len,
char **out, size_t *out_len,
const char *out_charset, const char *in_charset)
{
#if !ICONV_SUPPORTS_ERRNO
size_t in_size, out_size, out_left;
char *out_buffer, *out_p;
iconv_t cd;
size_t result;
*out = NULL;
*out_len = 0;
/*
This is not the right way to get output size...
This is not space efficient for large text.
This is also problem for encoding like UTF-7/UTF-8/ISO-2022 which
a single char can be more than 4 bytes.
I added 15 extra bytes for safety. <yohgaki@php.net>
*/
out_size = in_len * sizeof(int) + 15;
out_left = out_size;
in_size = in_len;
cd = iconv_open(out_charset, in_charset);
if (cd == (iconv_t)(-1)) {
return PHP_ICONV_ERR_UNKNOWN;
}
out_buffer = (char *) emalloc(out_size + 1);
out_p = out_buffer;
#ifdef NETWARE
result = iconv(cd, (char **) &in_p, &in_size, (char **)
#else
result = iconv(cd, (const char **) &in_p, &in_size, (char **)
#endif
&out_p, &out_left);
if (result == (size_t)(-1)) {
efree(out_buffer);
return PHP_ICONV_ERR_UNKNOWN;
}
if (out_left < 8) {
size_t pos = out_p - out_buffer;
out_buffer = (char *) safe_erealloc(out_buffer, out_size, 1, 8);
out_p = out_buffer+pos;
out_size += 7;
out_left += 7;
}
/* flush the shift-out sequences */
result = iconv(cd, NULL, NULL, &out_p, &out_left);
if (result == (size_t)(-1)) {
efree(out_buffer);
return PHP_ICONV_ERR_UNKNOWN;
}
*out_len = out_size - out_left;
out_buffer[*out_len] = '\0';
*out = out_buffer;
iconv_close(cd);
return PHP_ICONV_ERR_SUCCESS;
#else
/*
iconv supports errno. Handle it better way.
*/
iconv_t cd;
size_t in_left, out_size, out_left;
char *out_p, *out_buf, *tmp_buf;
size_t bsz, result = 0;
php_iconv_err_t retval = PHP_ICONV_ERR_SUCCESS;
*out = NULL;
*out_len = 0;
cd = iconv_open(out_charset, in_charset);
if (cd == (iconv_t)(-1)) {
if (errno == EINVAL) {
return PHP_ICONV_ERR_WRONG_CHARSET;
} else {
return PHP_ICONV_ERR_CONVERTER;
}
}
in_left= in_len;
out_left = in_len + 32; /* Avoid realloc() most cases */
out_size = 0;
bsz = out_left;
out_buf = (char *) emalloc(bsz+1);
out_p = out_buf;
while (in_left > 0) {
result = iconv(cd, (char **) &in_p, &in_left, (char **) &out_p, &out_left);
out_size = bsz - out_left;
if (result == (size_t)(-1)) {
if (errno == E2BIG && in_left > 0) {
/* converted string is longer than out buffer */
bsz += in_len;
tmp_buf = (char*) erealloc(out_buf, bsz+1);
out_p = out_buf = tmp_buf;
out_p += out_size;
out_left = bsz - out_size;
continue;
}
}
break;
}
if (result != (size_t)(-1)) {
/* flush the shift-out sequences */
for (;;) {
result = iconv(cd, NULL, NULL, (char **) &out_p, &out_left);
out_size = bsz - out_left;
if (result != (size_t)(-1)) {
break;
}
if (errno == E2BIG) {
bsz += 16;
tmp_buf = (char *) erealloc(out_buf, bsz);
out_p = out_buf = tmp_buf;
out_p += out_size;
out_left = bsz - out_size;
} else {
break;
}
}
}
iconv_close(cd);
if (result == (size_t)(-1)) {
switch (errno) {
case EINVAL:
retval = PHP_ICONV_ERR_ILLEGAL_CHAR;
break;
case EILSEQ:
retval = PHP_ICONV_ERR_ILLEGAL_SEQ;
break;
case E2BIG:
/* should not happen */
retval = PHP_ICONV_ERR_TOO_BIG;
break;
default:
/* other error */
retval = PHP_ICONV_ERR_UNKNOWN;
efree(out_buf);
return PHP_ICONV_ERR_UNKNOWN;
}
}
*out_p = '\0';
*out = out_buf;
*out_len = out_size;
return retval;
#endif
}
/* }}} */
/* {{{ _php_iconv_strlen() */
static php_iconv_err_t _php_iconv_strlen(unsigned int *pretval, const char *str, size_t nbytes, const char *enc)
{
char buf[GENERIC_SUPERSET_NBYTES*2];
php_iconv_err_t err = PHP_ICONV_ERR_SUCCESS;
iconv_t cd;
const char *in_p;
size_t in_left;
char *out_p;
size_t out_left;
unsigned int cnt;
*pretval = (unsigned int)-1;
cd = iconv_open(GENERIC_SUPERSET_NAME, enc);
if (cd == (iconv_t)(-1)) {
#if ICONV_SUPPORTS_ERRNO
if (errno == EINVAL) {
return PHP_ICONV_ERR_WRONG_CHARSET;
} else {
return PHP_ICONV_ERR_CONVERTER;
}
#else
return PHP_ICONV_ERR_UNKNOWN;
#endif
}
errno = out_left = 0;
for (in_p = str, in_left = nbytes, cnt = 0; in_left > 0; cnt+=2) {
size_t prev_in_left;
out_p = buf;
out_left = sizeof(buf);
prev_in_left = in_left;
if (iconv(cd, (char **)&in_p, &in_left, (char **) &out_p, &out_left) == (size_t)-1) {
if (prev_in_left == in_left) {
break;
}
}
}
if (out_left > 0) {
cnt -= out_left / GENERIC_SUPERSET_NBYTES;
}
#if ICONV_SUPPORTS_ERRNO
switch (errno) {
case EINVAL:
err = PHP_ICONV_ERR_ILLEGAL_CHAR;
break;
case EILSEQ:
err = PHP_ICONV_ERR_ILLEGAL_SEQ;
break;
case E2BIG:
case 0:
*pretval = cnt;
break;
default:
err = PHP_ICONV_ERR_UNKNOWN;
break;
}
#else
*pretval = cnt;
#endif
iconv_close(cd);
return err;
}
/* }}} */
/* {{{ _php_iconv_substr() */
static php_iconv_err_t _php_iconv_substr(smart_str *pretval,
const char *str, size_t nbytes, int offset, int len, const char *enc)
{
char buf[GENERIC_SUPERSET_NBYTES];
php_iconv_err_t err = PHP_ICONV_ERR_SUCCESS;
iconv_t cd1, cd2;
const char *in_p;
size_t in_left;
char *out_p;
size_t out_left;
unsigned int cnt;
int total_len;
err = _php_iconv_strlen(&total_len, str, nbytes, enc);
if (err != PHP_ICONV_ERR_SUCCESS) {
return err;
}
if (len < 0) {
if ((len += (total_len - offset)) < 0) {
return PHP_ICONV_ERR_SUCCESS;
}
}
if (offset < 0) {
if ((offset += total_len) < 0) {
return PHP_ICONV_ERR_SUCCESS;
}
}
if(len > total_len) {
len = total_len;
}
if (offset >= total_len) {
return PHP_ICONV_ERR_SUCCESS;
}
if ((offset + len) > total_len ) {
/* trying to compute the length */
len = total_len - offset;
}
if (len == 0) {
smart_str_appendl(pretval, "", 0);
smart_str_0(pretval);
return PHP_ICONV_ERR_SUCCESS;
}
cd1 = iconv_open(GENERIC_SUPERSET_NAME, enc);
if (cd1 == (iconv_t)(-1)) {
#if ICONV_SUPPORTS_ERRNO
if (errno == EINVAL) {
return PHP_ICONV_ERR_WRONG_CHARSET;
} else {
return PHP_ICONV_ERR_CONVERTER;
}
#else
return PHP_ICONV_ERR_UNKNOWN;
#endif
}
cd2 = (iconv_t)NULL;
errno = 0;
for (in_p = str, in_left = nbytes, cnt = 0; in_left > 0 && len > 0; ++cnt) {
size_t prev_in_left;
out_p = buf;
out_left = sizeof(buf);
prev_in_left = in_left;
if (iconv(cd1, (char **)&in_p, &in_left, (char **) &out_p, &out_left) == (size_t)-1) {
if (prev_in_left == in_left) {
break;
}
}
if (cnt >= (unsigned int)offset) {
if (cd2 == (iconv_t)NULL) {
cd2 = iconv_open(enc, GENERIC_SUPERSET_NAME);
if (cd2 == (iconv_t)(-1)) {
cd2 = (iconv_t)NULL;
#if ICONV_SUPPORTS_ERRNO
if (errno == EINVAL) {
err = PHP_ICONV_ERR_WRONG_CHARSET;
} else {
err = PHP_ICONV_ERR_CONVERTER;
}
#else
err = PHP_ICONV_ERR_UNKNOWN;
#endif
break;
}
}
if (_php_iconv_appendl(pretval, buf, sizeof(buf), cd2) != PHP_ICONV_ERR_SUCCESS) {
break;
}
--len;
}
}
#if ICONV_SUPPORTS_ERRNO
switch (errno) {
case EINVAL:
err = PHP_ICONV_ERR_ILLEGAL_CHAR;
break;
case EILSEQ:
err = PHP_ICONV_ERR_ILLEGAL_SEQ;
break;
case E2BIG:
break;
}
#endif
if (err == PHP_ICONV_ERR_SUCCESS) {
if (cd2 != (iconv_t)NULL) {
_php_iconv_appendl(pretval, NULL, 0, cd2);
}
smart_str_0(pretval);
}
if (cd1 != (iconv_t)NULL) {
iconv_close(cd1);
}
if (cd2 != (iconv_t)NULL) {
iconv_close(cd2);
}
return err;
}
/* }}} */
/* {{{ _php_iconv_strpos() */
static php_iconv_err_t _php_iconv_strpos(unsigned int *pretval,
const char *haystk, size_t haystk_nbytes,
const char *ndl, size_t ndl_nbytes,
int offset, const char *enc)
{
char buf[GENERIC_SUPERSET_NBYTES];
php_iconv_err_t err = PHP_ICONV_ERR_SUCCESS;
iconv_t cd;
const char *in_p;
size_t in_left;
char *out_p;
size_t out_left;
unsigned int cnt;
char *ndl_buf;
const char *ndl_buf_p;
size_t ndl_buf_len, ndl_buf_left;
unsigned int match_ofs;
*pretval = (unsigned int)-1;
err = php_iconv_string(ndl, ndl_nbytes,
&ndl_buf, &ndl_buf_len, GENERIC_SUPERSET_NAME, enc);
if (err != PHP_ICONV_ERR_SUCCESS) {
if (ndl_buf != NULL) {
efree(ndl_buf);
}
return err;
}
cd = iconv_open(GENERIC_SUPERSET_NAME, enc);
if (cd == (iconv_t)(-1)) {
if (ndl_buf != NULL) {
efree(ndl_buf);
}
#if ICONV_SUPPORTS_ERRNO
if (errno == EINVAL) {
return PHP_ICONV_ERR_WRONG_CHARSET;
} else {
return PHP_ICONV_ERR_CONVERTER;
}
#else
return PHP_ICONV_ERR_UNKNOWN;
#endif
}
ndl_buf_p = ndl_buf;
ndl_buf_left = ndl_buf_len;
match_ofs = (unsigned int)-1;
for (in_p = haystk, in_left = haystk_nbytes, cnt = 0; in_left > 0; ++cnt) {
size_t prev_in_left;
out_p = buf;
out_left = sizeof(buf);
prev_in_left = in_left;
if (iconv(cd, (char **)&in_p, &in_left, (char **) &out_p, &out_left) == (size_t)-1) {
if (prev_in_left == in_left) {
#if ICONV_SUPPORTS_ERRNO
switch (errno) {
case EINVAL:
err = PHP_ICONV_ERR_ILLEGAL_CHAR;
break;
case EILSEQ:
err = PHP_ICONV_ERR_ILLEGAL_SEQ;
break;
case E2BIG:
break;
default:
err = PHP_ICONV_ERR_UNKNOWN;
break;
}
#endif
break;
}
}
if (offset >= 0) {
if (cnt >= (unsigned int)offset) {
if (_php_iconv_memequal(buf, ndl_buf_p, sizeof(buf))) {
if (match_ofs == (unsigned int)-1) {
match_ofs = cnt;
}
ndl_buf_p += GENERIC_SUPERSET_NBYTES;
ndl_buf_left -= GENERIC_SUPERSET_NBYTES;
if (ndl_buf_left == 0) {
*pretval = match_ofs;
break;
}
} else {
unsigned int i, j, lim;
i = 0;
j = GENERIC_SUPERSET_NBYTES;
lim = (unsigned int)(ndl_buf_p - ndl_buf);
while (j < lim) {
if (_php_iconv_memequal(&ndl_buf[j], &ndl_buf[i],
GENERIC_SUPERSET_NBYTES)) {
i += GENERIC_SUPERSET_NBYTES;
} else {
j -= i;
i = 0;
}
j += GENERIC_SUPERSET_NBYTES;
}
if (_php_iconv_memequal(buf, &ndl_buf[i], sizeof(buf))) {
match_ofs += (lim - i) / GENERIC_SUPERSET_NBYTES;
i += GENERIC_SUPERSET_NBYTES;
ndl_buf_p = &ndl_buf[i];
ndl_buf_left = ndl_buf_len - i;
} else {
match_ofs = (unsigned int)-1;
ndl_buf_p = ndl_buf;
ndl_buf_left = ndl_buf_len;
}
}
}
} else {
if (_php_iconv_memequal(buf, ndl_buf_p, sizeof(buf))) {
if (match_ofs == (unsigned int)-1) {
match_ofs = cnt;
}
ndl_buf_p += GENERIC_SUPERSET_NBYTES;
ndl_buf_left -= GENERIC_SUPERSET_NBYTES;
if (ndl_buf_left == 0) {
*pretval = match_ofs;
ndl_buf_p = ndl_buf;
ndl_buf_left = ndl_buf_len;
match_ofs = -1;
}
} else {
unsigned int i, j, lim;
i = 0;
j = GENERIC_SUPERSET_NBYTES;
lim = (unsigned int)(ndl_buf_p - ndl_buf);
while (j < lim) {
if (_php_iconv_memequal(&ndl_buf[j], &ndl_buf[i],
GENERIC_SUPERSET_NBYTES)) {
i += GENERIC_SUPERSET_NBYTES;
} else {
j -= i;
i = 0;
}
j += GENERIC_SUPERSET_NBYTES;
}
if (_php_iconv_memequal(buf, &ndl_buf[i], sizeof(buf))) {
match_ofs += (lim - i) / GENERIC_SUPERSET_NBYTES;
i += GENERIC_SUPERSET_NBYTES;
ndl_buf_p = &ndl_buf[i];
ndl_buf_left = ndl_buf_len - i;
} else {
match_ofs = (unsigned int)-1;
ndl_buf_p = ndl_buf;
ndl_buf_left = ndl_buf_len;
}
}
}
}
if (ndl_buf) {
efree(ndl_buf);
}
iconv_close(cd);
return err;
}
/* }}} */
/* {{{ _php_iconv_mime_encode() */
static php_iconv_err_t _php_iconv_mime_encode(smart_str *pretval, const char *fname, size_t fname_nbytes, const char *fval, size_t fval_nbytes, unsigned int max_line_len, const char *lfchars, php_iconv_enc_scheme_t enc_scheme, const char *out_charset, const char *enc)
{
php_iconv_err_t err = PHP_ICONV_ERR_SUCCESS;
iconv_t cd = (iconv_t)(-1), cd_pl = (iconv_t)(-1);
unsigned int char_cnt = 0;
size_t out_charset_len;
size_t lfchars_len;
char *buf = NULL;
char *encoded = NULL;
size_t encoded_len;
const char *in_p;
size_t in_left;
char *out_p;
size_t out_left;
static int qp_table[256] = {
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0x00 */
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0x10 */
3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0x20 */
1, 1, 1, 1, 1, 1, 1 ,1, 1, 1, 1, 1, 1, 3, 1, 3, /* 0x30 */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0x40 */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, /* 0x50 */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, /* 0x60 */
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, /* 0x70 */
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0x80 */
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0x90 */
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0xA0 */
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0xB0 */
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0xC0 */
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0xD0 */
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, /* 0xE0 */
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3 /* 0xF0 */
};
out_charset_len = strlen(out_charset);
lfchars_len = strlen(lfchars);
if ((fname_nbytes + 2) >= max_line_len
|| (out_charset_len + 12) >= max_line_len) {
/* field name is too long */
err = PHP_ICONV_ERR_TOO_BIG;
goto out;
}
cd_pl = iconv_open(ICONV_ASCII_ENCODING, enc);
if (cd_pl == (iconv_t)(-1)) {
#if ICONV_SUPPORTS_ERRNO
if (errno == EINVAL) {
err = PHP_ICONV_ERR_WRONG_CHARSET;
} else {
err = PHP_ICONV_ERR_CONVERTER;
}
#else
err = PHP_ICONV_ERR_UNKNOWN;
#endif
goto out;
}
cd = iconv_open(out_charset, enc);
if (cd == (iconv_t)(-1)) {
#if ICONV_SUPPORTS_ERRNO
if (errno == EINVAL) {
err = PHP_ICONV_ERR_WRONG_CHARSET;
} else {
err = PHP_ICONV_ERR_CONVERTER;
}
#else
err = PHP_ICONV_ERR_UNKNOWN;
#endif
goto out;
}
buf = safe_emalloc(1, max_line_len, 5);
char_cnt = max_line_len;
_php_iconv_appendl(pretval, fname, fname_nbytes, cd_pl);
char_cnt -= fname_nbytes;
smart_str_appendl(pretval, ": ", sizeof(": ") - 1);
char_cnt -= 2;
in_p = fval;
in_left = fval_nbytes;
do {
size_t prev_in_left;
size_t out_size;
if (char_cnt < (out_charset_len + 12)) {
/* lfchars must be encoded in ASCII here*/
smart_str_appendl(pretval, lfchars, lfchars_len);
smart_str_appendc(pretval, ' ');
char_cnt = max_line_len - 1;
}
smart_str_appendl(pretval, "=?", sizeof("=?") - 1);
char_cnt -= 2;
smart_str_appendl(pretval, out_charset, out_charset_len);
char_cnt -= out_charset_len;
smart_str_appendc(pretval, '?');
char_cnt --;
switch (enc_scheme) {
case PHP_ICONV_ENC_SCHEME_BASE64: {
size_t ini_in_left;
const char *ini_in_p;
size_t out_reserved = 4;
int dummy;
smart_str_appendc(pretval, 'B');
char_cnt--;
smart_str_appendc(pretval, '?');
char_cnt--;
prev_in_left = ini_in_left = in_left;
ini_in_p = in_p;
out_size = (char_cnt - 2) / 4 * 3;
for (;;) {
out_p = buf;
if (out_size <= out_reserved) {
err = PHP_ICONV_ERR_TOO_BIG;
goto out;
}
out_left = out_size - out_reserved;
if (iconv(cd, (char **)&in_p, &in_left, (char **) &out_p, &out_left) == (size_t)-1) {
#if ICONV_SUPPORTS_ERRNO
switch (errno) {
case EINVAL:
err = PHP_ICONV_ERR_ILLEGAL_CHAR;
goto out;
case EILSEQ:
err = PHP_ICONV_ERR_ILLEGAL_SEQ;
goto out;
case E2BIG:
if (prev_in_left == in_left) {
err = PHP_ICONV_ERR_TOO_BIG;
goto out;
}
break;
default:
err = PHP_ICONV_ERR_UNKNOWN;
goto out;
}
#else
if (prev_in_left == in_left) {
err = PHP_ICONV_ERR_UNKNOWN;
goto out;
}
#endif
}
out_left += out_reserved;
if (iconv(cd, NULL, NULL, (char **) &out_p, &out_left) == (size_t)-1) {
#if ICONV_SUPPORTS_ERRNO
if (errno != E2BIG) {
err = PHP_ICONV_ERR_UNKNOWN;
goto out;
}
#else
if (out_left != 0) {
err = PHP_ICONV_ERR_UNKNOWN;
goto out;
}
#endif
} else {
break;
}
if (iconv(cd, NULL, NULL, NULL, NULL) == (size_t)-1) {
err = PHP_ICONV_ERR_UNKNOWN;
goto out;
}
out_reserved += 4;
in_left = ini_in_left;
in_p = ini_in_p;
}
prev_in_left = in_left;
encoded = (char *) php_base64_encode((unsigned char *) buf, (int)(out_size - out_left), &dummy);
encoded_len = (size_t)dummy;
if (char_cnt < encoded_len) {
/* something went wrong! */
err = PHP_ICONV_ERR_UNKNOWN;
goto out;
}
smart_str_appendl(pretval, encoded, encoded_len);
char_cnt -= encoded_len;
smart_str_appendl(pretval, "?=", sizeof("?=") - 1);
char_cnt -= 2;
efree(encoded);
encoded = NULL;
} break; /* case PHP_ICONV_ENC_SCHEME_BASE64: */
case PHP_ICONV_ENC_SCHEME_QPRINT: {
size_t ini_in_left;
const char *ini_in_p;
const unsigned char *p;
size_t nbytes_required;
smart_str_appendc(pretval, 'Q');
char_cnt--;
smart_str_appendc(pretval, '?');
char_cnt--;
prev_in_left = ini_in_left = in_left;
ini_in_p = in_p;
for (out_size = (char_cnt - 2) / 3; out_size > 0;) {
size_t prev_out_left;
nbytes_required = 0;
out_p = buf;
out_left = out_size;
if (iconv(cd, (char **)&in_p, &in_left, (char **) &out_p, &out_left) == (size_t)-1) {
#if ICONV_SUPPORTS_ERRNO
switch (errno) {
case EINVAL:
err = PHP_ICONV_ERR_ILLEGAL_CHAR;
goto out;
case EILSEQ:
err = PHP_ICONV_ERR_ILLEGAL_SEQ;
goto out;
case E2BIG:
if (prev_in_left == in_left) {
err = PHP_ICONV_ERR_UNKNOWN;
goto out;
}
break;
default:
err = PHP_ICONV_ERR_UNKNOWN;
goto out;
}
#else
if (prev_in_left == in_left) {
err = PHP_ICONV_ERR_UNKNOWN;
goto out;
}
#endif
}
prev_out_left = out_left;
if (iconv(cd, NULL, NULL, (char **) &out_p, &out_left) == (size_t)-1) {
#if ICONV_SUPPORTS_ERRNO
if (errno != E2BIG) {
err = PHP_ICONV_ERR_UNKNOWN;
goto out;
}
#else
if (out_left == prev_out_left) {
err = PHP_ICONV_ERR_UNKNOWN;
goto out;
}
#endif
}
for (p = (unsigned char *)buf; p < (unsigned char *)out_p; p++) {
nbytes_required += qp_table[*p];
}
if (nbytes_required <= char_cnt - 2) {
break;
}
out_size -= ((nbytes_required - (char_cnt - 2)) + 1) / 3;
in_left = ini_in_left;
in_p = ini_in_p;
}
for (p = (unsigned char *)buf; p < (unsigned char *)out_p; p++) {
if (qp_table[*p] == 1) {
smart_str_appendc(pretval, *(char *)p);
char_cnt--;
} else {
static char qp_digits[] = "0123456789ABCDEF";
smart_str_appendc(pretval, '=');
smart_str_appendc(pretval, qp_digits[(*p >> 4) & 0x0f]);
smart_str_appendc(pretval, qp_digits[(*p & 0x0f)]);
char_cnt -= 3;
}
}
smart_str_appendl(pretval, "?=", sizeof("?=") - 1);
char_cnt -= 2;
if (iconv(cd, NULL, NULL, NULL, NULL) == (size_t)-1) {
err = PHP_ICONV_ERR_UNKNOWN;
goto out;
}
} break; /* case PHP_ICONV_ENC_SCHEME_QPRINT: */
}
} while (in_left > 0);
smart_str_0(pretval);
out:
if (cd != (iconv_t)(-1)) {
iconv_close(cd);
}
if (cd_pl != (iconv_t)(-1)) {
iconv_close(cd_pl);
}
if (encoded != NULL) {
efree(encoded);
}
if (buf != NULL) {
efree(buf);
}
return err;
}
/* }}} */
/* {{{ _php_iconv_mime_decode() */
static php_iconv_err_t _php_iconv_mime_decode(smart_str *pretval, const char *str, size_t str_nbytes, const char *enc, const char **next_pos, int mode)
{
php_iconv_err_t err = PHP_ICONV_ERR_SUCCESS;
iconv_t cd = (iconv_t)(-1), cd_pl = (iconv_t)(-1);
const char *p1;
size_t str_left;
unsigned int scan_stat = 0;
const char *csname = NULL;
size_t csname_len;
const char *encoded_text = NULL;
size_t encoded_text_len = 0;
const char *encoded_word = NULL;
const char *spaces = NULL;
php_iconv_enc_scheme_t enc_scheme = PHP_ICONV_ENC_SCHEME_BASE64;
if (next_pos != NULL) {
*next_pos = NULL;
}
cd_pl = iconv_open(enc, ICONV_ASCII_ENCODING);
if (cd_pl == (iconv_t)(-1)) {
#if ICONV_SUPPORTS_ERRNO
if (errno == EINVAL) {
err = PHP_ICONV_ERR_WRONG_CHARSET;
} else {
err = PHP_ICONV_ERR_CONVERTER;
}
#else
err = PHP_ICONV_ERR_UNKNOWN;
#endif
goto out;
}
p1 = str;
for (str_left = str_nbytes; str_left > 0; str_left--, p1++) {
int eos = 0;
switch (scan_stat) {
case 0: /* expecting any character */
switch (*p1) {
case '\r': /* part of an EOL sequence? */
scan_stat = 7;
break;
case '\n':
scan_stat = 8;
break;
case '=': /* first letter of an encoded chunk */
encoded_word = p1;
scan_stat = 1;
break;
case ' ': case '\t': /* a chunk of whitespaces */
spaces = p1;
scan_stat = 11;
break;
default: /* first letter of a non-encoded word */
_php_iconv_appendc(pretval, *p1, cd_pl);
encoded_word = NULL;
if ((mode & PHP_ICONV_MIME_DECODE_STRICT)) {
scan_stat = 12;
}
break;
}
break;
case 1: /* expecting a delimiter */
if (*p1 != '?') {
err = _php_iconv_appendl(pretval, encoded_word, (size_t)((p1 + 1) - encoded_word), cd_pl);
if (err != PHP_ICONV_ERR_SUCCESS) {
goto out;
}
encoded_word = NULL;
if ((mode & PHP_ICONV_MIME_DECODE_STRICT)) {
scan_stat = 12;
} else {
scan_stat = 0;
}
break;
}
csname = p1 + 1;
scan_stat = 2;
break;
case 2: /* expecting a charset name */
switch (*p1) {
case '?': /* normal delimiter: encoding scheme follows */
scan_stat = 3;
break;
case '*': /* new style delimiter: locale id follows */
scan_stat = 10;
break;
}
if (scan_stat != 2) {
char tmpbuf[80];
if (csname == NULL) {
err = PHP_ICONV_ERR_MALFORMED;
goto out;
}
csname_len = (size_t)(p1 - csname);
if (csname_len > sizeof(tmpbuf) - 1) {
if ((mode & PHP_ICONV_MIME_DECODE_CONTINUE_ON_ERROR)) {
err = _php_iconv_appendl(pretval, encoded_word, (size_t)((p1 + 1) - encoded_word), cd_pl);
if (err != PHP_ICONV_ERR_SUCCESS) {
goto out;
}
encoded_word = NULL;
if ((mode & PHP_ICONV_MIME_DECODE_STRICT)) {
scan_stat = 12;
} else {
scan_stat = 0;
}
break;
} else {
err = PHP_ICONV_ERR_MALFORMED;
goto out;
}
}
memcpy(tmpbuf, csname, csname_len);
tmpbuf[csname_len] = '\0';
if (cd != (iconv_t)(-1)) {
iconv_close(cd);
}
cd = iconv_open(enc, tmpbuf);
if (cd == (iconv_t)(-1)) {
if ((mode & PHP_ICONV_MIME_DECODE_CONTINUE_ON_ERROR)) {
/* Bad character set, but the user wants us to
* press on. In this case, we'll just insert the
* undecoded encoded word, since there isn't really
* a more sensible behaviour available; the only
* other options are to swallow the encoded word
* entirely or decode it with an arbitrarily chosen
* single byte encoding, both of which seem to have
* a higher WTF factor than leaving it undecoded.
*
* Given this approach, we need to skip ahead to
* the end of the encoded word. */
int qmarks = 2;
while (qmarks > 0 && str_left > 1) {
if (*(++p1) == '?') {
--qmarks;
}
--str_left;
}
/* Look ahead to check for the terminating = that
* should be there as well; if it's there, we'll
* also include that. If it's not, there isn't much
* we can do at this point. */
if (*(p1 + 1) == '=') {
++p1;
--str_left;
}
err = _php_iconv_appendl(pretval, encoded_word, (size_t)((p1 + 1) - encoded_word), cd_pl);
if (err != PHP_ICONV_ERR_SUCCESS) {
goto out;
}
/* Let's go back and see if there are further
* encoded words or bare content, and hope they
* might actually have a valid character set. */
scan_stat = 12;
break;
} else {
#if ICONV_SUPPORTS_ERRNO
if (errno == EINVAL) {
err = PHP_ICONV_ERR_WRONG_CHARSET;
} else {
err = PHP_ICONV_ERR_CONVERTER;
}
#else
err = PHP_ICONV_ERR_UNKNOWN;
#endif
goto out;
}
}
}
break;
case 3: /* expecting a encoding scheme specifier */
switch (*p1) {
case 'b':
case 'B':
enc_scheme = PHP_ICONV_ENC_SCHEME_BASE64;
scan_stat = 4;
break;
case 'q':
case 'Q':
enc_scheme = PHP_ICONV_ENC_SCHEME_QPRINT;
scan_stat = 4;
break;
default:
if ((mode & PHP_ICONV_MIME_DECODE_CONTINUE_ON_ERROR)) {
err = _php_iconv_appendl(pretval, encoded_word, (size_t)((p1 + 1) - encoded_word), cd_pl);
if (err != PHP_ICONV_ERR_SUCCESS) {
goto out;
}
encoded_word = NULL;
if ((mode & PHP_ICONV_MIME_DECODE_STRICT)) {
scan_stat = 12;
} else {
scan_stat = 0;
}
break;
} else {
err = PHP_ICONV_ERR_MALFORMED;
goto out;
}
}
break;
case 4: /* expecting a delimiter */
if (*p1 != '?') {
if ((mode & PHP_ICONV_MIME_DECODE_CONTINUE_ON_ERROR)) {
/* pass the entire chunk through the converter */
err = _php_iconv_appendl(pretval, encoded_word, (size_t)((p1 + 1) - encoded_word), cd_pl);
if (err != PHP_ICONV_ERR_SUCCESS) {
goto out;
}
encoded_word = NULL;
if ((mode & PHP_ICONV_MIME_DECODE_STRICT)) {
scan_stat = 12;
} else {
scan_stat = 0;
}
break;
} else {
err = PHP_ICONV_ERR_MALFORMED;
goto out;
}
}
encoded_text = p1 + 1;
scan_stat = 5;
break;
case 5: /* expecting an encoded portion */
if (*p1 == '?') {
encoded_text_len = (size_t)(p1 - encoded_text);
scan_stat = 6;
}
break;
case 7: /* expecting a "\n" character */
if (*p1 == '\n') {
scan_stat = 8;
} else {
/* bare CR */
_php_iconv_appendc(pretval, '\r', cd_pl);
_php_iconv_appendc(pretval, *p1, cd_pl);
scan_stat = 0;
}
break;
case 8: /* checking whether the following line is part of a
folded header */
if (*p1 != ' ' && *p1 != '\t') {
--p1;
str_left = 1; /* quit_loop */
break;
}
if (encoded_word == NULL) {
_php_iconv_appendc(pretval, ' ', cd_pl);
}
spaces = NULL;
scan_stat = 11;
break;
case 6: /* expecting a End-Of-Chunk character "=" */
if (*p1 != '=') {
if ((mode & PHP_ICONV_MIME_DECODE_CONTINUE_ON_ERROR)) {
/* pass the entire chunk through the converter */
err = _php_iconv_appendl(pretval, encoded_word, (size_t)((p1 + 1) - encoded_word), cd_pl);
if (err != PHP_ICONV_ERR_SUCCESS) {
goto out;
}
encoded_word = NULL;
if ((mode & PHP_ICONV_MIME_DECODE_STRICT)) {
scan_stat = 12;
} else {
scan_stat = 0;
}
break;
} else {
err = PHP_ICONV_ERR_MALFORMED;
goto out;
}
}
scan_stat = 9;
if (str_left == 1) {
eos = 1;
} else {
break;
}
case 9: /* choice point, seeing what to do next.*/
switch (*p1) {
default:
/* Handle non-RFC-compliant formats
*
* RFC2047 requires the character that comes right
* after an encoded word (chunk) to be a whitespace,
* while there are lots of broken implementations that
* generate such malformed headers that don't fulfill
* that requirement.
*/
if (!eos) {
if ((mode & PHP_ICONV_MIME_DECODE_STRICT)) {
/* pass the entire chunk through the converter */
err = _php_iconv_appendl(pretval, encoded_word, (size_t)((p1 + 1) - encoded_word), cd_pl);
if (err != PHP_ICONV_ERR_SUCCESS) {
goto out;
}
scan_stat = 12;
break;
}
}
/* break is omitted intentionally */
case '\r': case '\n': case ' ': case '\t': {
char *decoded_text;
size_t decoded_text_len;
int dummy;
switch (enc_scheme) {
case PHP_ICONV_ENC_SCHEME_BASE64:
decoded_text = (char *)php_base64_decode((unsigned char*)encoded_text, (int)encoded_text_len, &dummy);
decoded_text_len = (size_t)dummy;
break;
case PHP_ICONV_ENC_SCHEME_QPRINT:
decoded_text = (char *)php_quot_print_decode((unsigned char*)encoded_text, (int)encoded_text_len, &decoded_text_len, 1);
break;
default:
decoded_text = NULL;
break;
}
if (decoded_text == NULL) {
if ((mode & PHP_ICONV_MIME_DECODE_CONTINUE_ON_ERROR)) {
/* pass the entire chunk through the converter */
err = _php_iconv_appendl(pretval, encoded_word, (size_t)((p1 + 1) - encoded_word), cd_pl);
if (err != PHP_ICONV_ERR_SUCCESS) {
goto out;
}
encoded_word = NULL;
if ((mode & PHP_ICONV_MIME_DECODE_STRICT)) {
scan_stat = 12;
} else {
scan_stat = 0;
}
break;
} else {
err = PHP_ICONV_ERR_UNKNOWN;
goto out;
}
}
err = _php_iconv_appendl(pretval, decoded_text, decoded_text_len, cd);
efree(decoded_text);
if (err != PHP_ICONV_ERR_SUCCESS) {
if ((mode & PHP_ICONV_MIME_DECODE_CONTINUE_ON_ERROR)) {
/* pass the entire chunk through the converter */
err = _php_iconv_appendl(pretval, encoded_word, (size_t)(p1 - encoded_word), cd_pl);
encoded_word = NULL;
if (err != PHP_ICONV_ERR_SUCCESS) {
break;
}
} else {
goto out;
}
}
if (eos) { /* reached end-of-string. done. */
scan_stat = 0;
break;
}
switch (*p1) {
case '\r': /* part of an EOL sequence? */
scan_stat = 7;
break;
case '\n':
scan_stat = 8;
break;
case '=': /* first letter of an encoded chunk */
scan_stat = 1;
break;
case ' ': case '\t': /* medial whitespaces */
spaces = p1;
scan_stat = 11;
break;
default: /* first letter of a non-encoded word */
_php_iconv_appendc(pretval, *p1, cd_pl);
scan_stat = 12;
break;
}
} break;
}
break;
case 10: /* expects a language specifier. dismiss it for now */
if (*p1 == '?') {
scan_stat = 3;
}
break;
case 11: /* expecting a chunk of whitespaces */
switch (*p1) {
case '\r': /* part of an EOL sequence? */
scan_stat = 7;
break;
case '\n':
scan_stat = 8;
break;
case '=': /* first letter of an encoded chunk */
if (spaces != NULL && encoded_word == NULL) {
_php_iconv_appendl(pretval, spaces, (size_t)(p1 - spaces), cd_pl);
spaces = NULL;
}
encoded_word = p1;
scan_stat = 1;
break;
case ' ': case '\t':
break;
default: /* first letter of a non-encoded word */
if (spaces != NULL) {
_php_iconv_appendl(pretval, spaces, (size_t)(p1 - spaces), cd_pl);
spaces = NULL;
}
_php_iconv_appendc(pretval, *p1, cd_pl);
encoded_word = NULL;
if ((mode & PHP_ICONV_MIME_DECODE_STRICT)) {
scan_stat = 12;
} else {
scan_stat = 0;
}
break;
}
break;
case 12: /* expecting a non-encoded word */
switch (*p1) {
case '\r': /* part of an EOL sequence? */
scan_stat = 7;
break;
case '\n':
scan_stat = 8;
break;
case ' ': case '\t':
spaces = p1;
scan_stat = 11;
break;
case '=': /* first letter of an encoded chunk */
if (!(mode & PHP_ICONV_MIME_DECODE_STRICT)) {
encoded_word = p1;
scan_stat = 1;
break;
}
/* break is omitted intentionally */
default:
_php_iconv_appendc(pretval, *p1, cd_pl);
break;
}
break;
}
}
switch (scan_stat) {
case 0: case 8: case 11: case 12:
break;
default:
if ((mode & PHP_ICONV_MIME_DECODE_CONTINUE_ON_ERROR)) {
if (scan_stat == 1) {
_php_iconv_appendc(pretval, '=', cd_pl);
}
err = PHP_ICONV_ERR_SUCCESS;
} else {
err = PHP_ICONV_ERR_MALFORMED;
goto out;
}
}
if (next_pos != NULL) {
*next_pos = p1;
}
smart_str_0(pretval);
out:
if (cd != (iconv_t)(-1)) {
iconv_close(cd);
}
if (cd_pl != (iconv_t)(-1)) {
iconv_close(cd_pl);
}
return err;
}
/* }}} */
/* {{{ php_iconv_show_error() */
static void _php_iconv_show_error(php_iconv_err_t err, const char *out_charset, const char *in_charset TSRMLS_DC)
{
switch (err) {
case PHP_ICONV_ERR_SUCCESS:
break;
case PHP_ICONV_ERR_CONVERTER:
php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Cannot open converter");
break;
case PHP_ICONV_ERR_WRONG_CHARSET:
php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Wrong charset, conversion from `%s' to `%s' is not allowed",
in_charset, out_charset);
break;
case PHP_ICONV_ERR_ILLEGAL_CHAR:
php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Detected an incomplete multibyte character in input string");
break;
case PHP_ICONV_ERR_ILLEGAL_SEQ:
php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Detected an illegal character in input string");
break;
case PHP_ICONV_ERR_TOO_BIG:
/* should not happen */
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Buffer length exceeded");
break;
case PHP_ICONV_ERR_MALFORMED:
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Malformed string");
break;
default:
/* other error */
php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Unknown error (%d)", errno);
break;
}
}
/* }}} */
/* {{{ proto int iconv_strlen(string str [, string charset])
Returns the character count of str */
PHP_FUNCTION(iconv_strlen)
{
char *charset = ICONVG(internal_encoding);
int charset_len = 0;
char *str;
int str_len;
php_iconv_err_t err;
unsigned int retval;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|s",
&str, &str_len, &charset, &charset_len) == FAILURE) {
RETURN_FALSE;
}
if (charset_len >= ICONV_CSNMAXLEN) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Charset parameter exceeds the maximum allowed length of %d characters", ICONV_CSNMAXLEN);
RETURN_FALSE;
}
err = _php_iconv_strlen(&retval, str, str_len, charset);
_php_iconv_show_error(err, GENERIC_SUPERSET_NAME, charset TSRMLS_CC);
if (err == PHP_ICONV_ERR_SUCCESS) {
RETVAL_LONG(retval);
} else {
RETVAL_FALSE;
}
}
/* }}} */
/* {{{ proto string iconv_substr(string str, int offset, [int length, string charset])
Returns specified part of a string */
PHP_FUNCTION(iconv_substr)
{
char *charset = ICONVG(internal_encoding);
int charset_len = 0;
char *str;
int str_len;
long offset, length = 0;
php_iconv_err_t err;
smart_str retval = {0};
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sl|ls",
&str, &str_len, &offset, &length,
&charset, &charset_len) == FAILURE) {
RETURN_FALSE;
}
if (charset_len >= ICONV_CSNMAXLEN) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Charset parameter exceeds the maximum allowed length of %d characters", ICONV_CSNMAXLEN);
RETURN_FALSE;
}
if (ZEND_NUM_ARGS() < 3) {
length = str_len;
}
err = _php_iconv_substr(&retval, str, str_len, offset, length, charset);
_php_iconv_show_error(err, GENERIC_SUPERSET_NAME, charset TSRMLS_CC);
if (err == PHP_ICONV_ERR_SUCCESS && str != NULL && retval.c != NULL) {
RETURN_STRINGL(retval.c, retval.len, 0);
}
smart_str_free(&retval);
RETURN_FALSE;
}
/* }}} */
/* {{{ proto int iconv_strpos(string haystack, string needle [, int offset [, string charset]])
Finds position of first occurrence of needle within part of haystack beginning with offset */
PHP_FUNCTION(iconv_strpos)
{
char *charset = ICONVG(internal_encoding);
int charset_len = 0;
char *haystk;
int haystk_len;
char *ndl;
int ndl_len;
long offset = 0;
php_iconv_err_t err;
unsigned int retval;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss|ls",
&haystk, &haystk_len, &ndl, &ndl_len,
&offset, &charset, &charset_len) == FAILURE) {
RETURN_FALSE;
}
if (charset_len >= ICONV_CSNMAXLEN) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Charset parameter exceeds the maximum allowed length of %d characters", ICONV_CSNMAXLEN);
RETURN_FALSE;
}
if (offset < 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Offset not contained in string.");
RETURN_FALSE;
}
if (ndl_len < 1) {
RETURN_FALSE;
}
err = _php_iconv_strpos(&retval, haystk, haystk_len, ndl, ndl_len,
offset, charset);
_php_iconv_show_error(err, GENERIC_SUPERSET_NAME, charset TSRMLS_CC);
if (err == PHP_ICONV_ERR_SUCCESS && retval != (unsigned int)-1) {
RETVAL_LONG((long)retval);
} else {
RETVAL_FALSE;
}
}
/* }}} */
/* {{{ proto int iconv_strrpos(string haystack, string needle [, string charset])
Finds position of last occurrence of needle within part of haystack beginning with offset */
PHP_FUNCTION(iconv_strrpos)
{
char *charset = ICONVG(internal_encoding);
int charset_len = 0;
char *haystk;
int haystk_len;
char *ndl;
int ndl_len;
php_iconv_err_t err;
unsigned int retval;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss|s",
&haystk, &haystk_len, &ndl, &ndl_len,
&charset, &charset_len) == FAILURE) {
RETURN_FALSE;
}
if (ndl_len < 1) {
RETURN_FALSE;
}
if (charset_len >= ICONV_CSNMAXLEN) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Charset parameter exceeds the maximum allowed length of %d characters", ICONV_CSNMAXLEN);
RETURN_FALSE;
}
err = _php_iconv_strpos(&retval, haystk, haystk_len, ndl, ndl_len,
-1, charset);
_php_iconv_show_error(err, GENERIC_SUPERSET_NAME, charset TSRMLS_CC);
if (err == PHP_ICONV_ERR_SUCCESS && retval != (unsigned int)-1) {
RETVAL_LONG((long)retval);
} else {
RETVAL_FALSE;
}
}
/* }}} */
/* {{{ proto string iconv_mime_encode(string field_name, string field_value [, array preference])
Composes a mime header field with field_name and field_value in a specified scheme */
PHP_FUNCTION(iconv_mime_encode)
{
const char *field_name = NULL;
int field_name_len;
const char *field_value = NULL;
int field_value_len;
zval *pref = NULL;
zval tmp_zv, *tmp_zv_p = NULL;
smart_str retval = {0};
php_iconv_err_t err;
const char *in_charset = ICONVG(internal_encoding);
const char *out_charset = in_charset;
long line_len = 76;
const char *lfchars = "\r\n";
php_iconv_enc_scheme_t scheme_id = PHP_ICONV_ENC_SCHEME_BASE64;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss|a",
&field_name, &field_name_len, &field_value, &field_value_len,
&pref) == FAILURE) {
RETURN_FALSE;
}
if (pref != NULL) {
zval **ppval;
if (zend_hash_find(Z_ARRVAL_P(pref), "scheme", sizeof("scheme"), (void **)&ppval) == SUCCESS) {
if (Z_TYPE_PP(ppval) == IS_STRING && Z_STRLEN_PP(ppval) > 0) {
switch (Z_STRVAL_PP(ppval)[0]) {
case 'B': case 'b':
scheme_id = PHP_ICONV_ENC_SCHEME_BASE64;
break;
case 'Q': case 'q':
scheme_id = PHP_ICONV_ENC_SCHEME_QPRINT;
break;
}
}
}
if (zend_hash_find(Z_ARRVAL_P(pref), "input-charset", sizeof("input-charset"), (void **)&ppval) == SUCCESS) {
if (Z_STRLEN_PP(ppval) >= ICONV_CSNMAXLEN) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Charset parameter exceeds the maximum allowed length of %d characters", ICONV_CSNMAXLEN);
RETURN_FALSE;
}
if (Z_TYPE_PP(ppval) == IS_STRING && Z_STRLEN_PP(ppval) > 0) {
in_charset = Z_STRVAL_PP(ppval);
}
}
if (zend_hash_find(Z_ARRVAL_P(pref), "output-charset", sizeof("output-charset"), (void **)&ppval) == SUCCESS) {
if (Z_STRLEN_PP(ppval) >= ICONV_CSNMAXLEN) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Charset parameter exceeds the maximum allowed length of %d characters", ICONV_CSNMAXLEN);
RETURN_FALSE;
}
if (Z_TYPE_PP(ppval) == IS_STRING && Z_STRLEN_PP(ppval) > 0) {
out_charset = Z_STRVAL_PP(ppval);
}
}
if (zend_hash_find(Z_ARRVAL_P(pref), "line-length", sizeof("line-length"), (void **)&ppval) == SUCCESS) {
zval val, *pval = *ppval;
if (Z_TYPE_P(pval) != IS_LONG) {
val = *pval;
zval_copy_ctor(&val);
convert_to_long(&val);
pval = &val;
}
line_len = Z_LVAL_P(pval);
if (pval == &val) {
zval_dtor(&val);
}
}
if (zend_hash_find(Z_ARRVAL_P(pref), "line-break-chars", sizeof("line-break-chars"), (void **)&ppval) == SUCCESS) {
if (Z_TYPE_PP(ppval) != IS_STRING) {
tmp_zv = **ppval;
zval_copy_ctor(&tmp_zv);
convert_to_string(&tmp_zv);
lfchars = Z_STRVAL(tmp_zv);
tmp_zv_p = &tmp_zv;
} else {
lfchars = Z_STRVAL_PP(ppval);
}
}
}
err = _php_iconv_mime_encode(&retval, field_name, field_name_len,
field_value, field_value_len, line_len, lfchars, scheme_id,
out_charset, in_charset);
_php_iconv_show_error(err, out_charset, in_charset TSRMLS_CC);
if (err == PHP_ICONV_ERR_SUCCESS) {
if (retval.c != NULL) {
RETVAL_STRINGL(retval.c, retval.len, 0);
} else {
RETVAL_EMPTY_STRING();
}
} else {
smart_str_free(&retval);
RETVAL_FALSE;
}
if (tmp_zv_p != NULL) {
zval_dtor(tmp_zv_p);
}
}
/* }}} */
/* {{{ proto string iconv_mime_decode(string encoded_string [, int mode, string charset])
Decodes a mime header field */
PHP_FUNCTION(iconv_mime_decode)
{
char *encoded_str;
int encoded_str_len;
char *charset = ICONVG(internal_encoding);
int charset_len = 0;
long mode = 0;
smart_str retval = {0};
php_iconv_err_t err;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|ls",
&encoded_str, &encoded_str_len, &mode, &charset, &charset_len) == FAILURE) {
RETURN_FALSE;
}
if (charset_len >= ICONV_CSNMAXLEN) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Charset parameter exceeds the maximum allowed length of %d characters", ICONV_CSNMAXLEN);
RETURN_FALSE;
}
err = _php_iconv_mime_decode(&retval, encoded_str, encoded_str_len, charset, NULL, mode);
_php_iconv_show_error(err, charset, "???" TSRMLS_CC);
if (err == PHP_ICONV_ERR_SUCCESS) {
if (retval.c != NULL) {
RETVAL_STRINGL(retval.c, retval.len, 0);
} else {
RETVAL_EMPTY_STRING();
}
} else {
smart_str_free(&retval);
RETVAL_FALSE;
}
}
/* }}} */
/* {{{ proto array iconv_mime_decode_headers(string headers [, int mode, string charset])
Decodes multiple mime header fields */
PHP_FUNCTION(iconv_mime_decode_headers)
{
const char *encoded_str;
int encoded_str_len;
char *charset = ICONVG(internal_encoding);
int charset_len = 0;
long mode = 0;
php_iconv_err_t err = PHP_ICONV_ERR_SUCCESS;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|ls",
&encoded_str, &encoded_str_len, &mode, &charset, &charset_len) == FAILURE) {
RETURN_FALSE;
}
if (charset_len >= ICONV_CSNMAXLEN) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Charset parameter exceeds the maximum allowed length of %d characters", ICONV_CSNMAXLEN);
RETURN_FALSE;
}
array_init(return_value);
while (encoded_str_len > 0) {
smart_str decoded_header = {0};
char *header_name = NULL;
size_t header_name_len = 0;
char *header_value = NULL;
size_t header_value_len = 0;
char *p, *limit;
const char *next_pos;
if (PHP_ICONV_ERR_SUCCESS != (err = _php_iconv_mime_decode(&decoded_header, encoded_str, encoded_str_len, charset, &next_pos, mode))) {
smart_str_free(&decoded_header);
break;
}
if (decoded_header.c == NULL) {
break;
}
limit = decoded_header.c + decoded_header.len;
for (p = decoded_header.c; p < limit; p++) {
if (*p == ':') {
*p = '\0';
header_name = decoded_header.c;
header_name_len = (p - decoded_header.c) + 1;
while (++p < limit) {
if (*p != ' ' && *p != '\t') {
break;
}
}
header_value = p;
header_value_len = limit - p;
break;
}
}
if (header_name != NULL) {
zval **elem, *new_elem;
if (zend_hash_find(Z_ARRVAL_P(return_value), header_name, header_name_len, (void **)&elem) == SUCCESS) {
if (Z_TYPE_PP(elem) != IS_ARRAY) {
MAKE_STD_ZVAL(new_elem);
array_init(new_elem);
Z_ADDREF_PP(elem);
add_next_index_zval(new_elem, *elem);
zend_hash_update(Z_ARRVAL_P(return_value), header_name, header_name_len, (void *)&new_elem, sizeof(new_elem), NULL);
elem = &new_elem;
}
add_next_index_stringl(*elem, header_value, header_value_len, 1);
} else {
add_assoc_stringl_ex(return_value, header_name, header_name_len, header_value, header_value_len, 1);
}
}
encoded_str_len -= next_pos - encoded_str;
encoded_str = next_pos;
smart_str_free(&decoded_header);
}
if (err != PHP_ICONV_ERR_SUCCESS) {
_php_iconv_show_error(err, charset, "???" TSRMLS_CC);
zval_dtor(return_value);
RETVAL_FALSE;
}
}
/* }}} */
/* {{{ proto string iconv(string in_charset, string out_charset, string str)
Returns str converted to the out_charset character set */
PHP_NAMED_FUNCTION(php_if_iconv)
{
char *in_charset, *out_charset, *in_buffer, *out_buffer;
size_t out_len;
int in_charset_len = 0, out_charset_len = 0, in_buffer_len;
php_iconv_err_t err;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sss",
&in_charset, &in_charset_len, &out_charset, &out_charset_len, &in_buffer, &in_buffer_len) == FAILURE)
return;
if (in_charset_len >= ICONV_CSNMAXLEN || out_charset_len >= ICONV_CSNMAXLEN) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Charset parameter exceeds the maximum allowed length of %d characters", ICONV_CSNMAXLEN);
RETURN_FALSE;
}
err = php_iconv_string(in_buffer, (size_t)in_buffer_len,
&out_buffer, &out_len, out_charset, in_charset);
_php_iconv_show_error(err, out_charset, in_charset TSRMLS_CC);
if (err == PHP_ICONV_ERR_SUCCESS && out_buffer != NULL) {
RETVAL_STRINGL(out_buffer, out_len, 0);
} else {
if (out_buffer != NULL) {
efree(out_buffer);
}
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto bool iconv_set_encoding(string type, string charset)
Sets internal encoding and output encoding for ob_iconv_handler() */
PHP_FUNCTION(iconv_set_encoding)
{
char *type, *charset;
int type_len, charset_len =0, retval;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ss", &type, &type_len, &charset, &charset_len) == FAILURE)
return;
if (charset_len >= ICONV_CSNMAXLEN) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Charset parameter exceeds the maximum allowed length of %d characters", ICONV_CSNMAXLEN);
RETURN_FALSE;
}
if(!strcasecmp("input_encoding", type)) {
retval = zend_alter_ini_entry("iconv.input_encoding", sizeof("iconv.input_encoding"), charset, charset_len, PHP_INI_USER, PHP_INI_STAGE_RUNTIME);
} else if(!strcasecmp("output_encoding", type)) {
retval = zend_alter_ini_entry("iconv.output_encoding", sizeof("iconv.output_encoding"), charset, charset_len, PHP_INI_USER, PHP_INI_STAGE_RUNTIME);
} else if(!strcasecmp("internal_encoding", type)) {
retval = zend_alter_ini_entry("iconv.internal_encoding", sizeof("iconv.internal_encoding"), charset, charset_len, PHP_INI_USER, PHP_INI_STAGE_RUNTIME);
} else {
RETURN_FALSE;
}
if (retval == SUCCESS) {
RETURN_TRUE;
} else {
RETURN_FALSE;
}
}
/* }}} */
/* {{{ proto mixed iconv_get_encoding([string type])
Get internal encoding and output encoding for ob_iconv_handler() */
PHP_FUNCTION(iconv_get_encoding)
{
char *type = "all";
int type_len = sizeof("all")-1;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &type, &type_len) == FAILURE)
return;
if (!strcasecmp("all", type)) {
array_init(return_value);
add_assoc_string(return_value, "input_encoding", ICONVG(input_encoding), 1);
add_assoc_string(return_value, "output_encoding", ICONVG(output_encoding), 1);
add_assoc_string(return_value, "internal_encoding", ICONVG(internal_encoding), 1);
} else if (!strcasecmp("input_encoding", type)) {
RETVAL_STRING(ICONVG(input_encoding), 1);
} else if (!strcasecmp("output_encoding", type)) {
RETVAL_STRING(ICONVG(output_encoding), 1);
} else if (!strcasecmp("internal_encoding", type)) {
RETVAL_STRING(ICONVG(internal_encoding), 1);
} else {
RETURN_FALSE;
}
}
/* }}} */
/* {{{ iconv stream filter */
typedef struct _php_iconv_stream_filter {
iconv_t cd;
int persistent;
char *to_charset;
size_t to_charset_len;
char *from_charset;
size_t from_charset_len;
char stub[128];
size_t stub_len;
} php_iconv_stream_filter;
/* }}} iconv stream filter */
/* {{{ php_iconv_stream_filter_dtor */
static void php_iconv_stream_filter_dtor(php_iconv_stream_filter *self)
{
iconv_close(self->cd);
pefree(self->to_charset, self->persistent);
pefree(self->from_charset, self->persistent);
}
/* }}} */
/* {{{ php_iconv_stream_filter_ctor() */
static php_iconv_err_t php_iconv_stream_filter_ctor(php_iconv_stream_filter *self,
const char *to_charset, size_t to_charset_len,
const char *from_charset, size_t from_charset_len, int persistent)
{
if (NULL == (self->to_charset = pemalloc(to_charset_len + 1, persistent))) {
return PHP_ICONV_ERR_ALLOC;
}
self->to_charset_len = to_charset_len;
if (NULL == (self->from_charset = pemalloc(from_charset_len + 1, persistent))) {
pefree(self->to_charset, persistent);
return PHP_ICONV_ERR_ALLOC;
}
self->from_charset_len = from_charset_len;
memcpy(self->to_charset, to_charset, to_charset_len);
self->to_charset[to_charset_len] = '\0';
memcpy(self->from_charset, from_charset, from_charset_len);
self->from_charset[from_charset_len] = '\0';
if ((iconv_t)-1 == (self->cd = iconv_open(self->to_charset, self->from_charset))) {
pefree(self->from_charset, persistent);
pefree(self->to_charset, persistent);
return PHP_ICONV_ERR_UNKNOWN;
}
self->persistent = persistent;
self->stub_len = 0;
return PHP_ICONV_ERR_SUCCESS;
}
/* }}} */
/* {{{ php_iconv_stream_filter_append_bucket */
static int php_iconv_stream_filter_append_bucket(
php_iconv_stream_filter *self,
php_stream *stream, php_stream_filter *filter,
php_stream_bucket_brigade *buckets_out,
const char *ps, size_t buf_len, size_t *consumed,
int persistent TSRMLS_DC)
{
php_stream_bucket *new_bucket;
char *out_buf = NULL;
size_t out_buf_size;
char *pd, *pt;
size_t ocnt, prev_ocnt, icnt, tcnt;
size_t initial_out_buf_size;
if (ps == NULL) {
initial_out_buf_size = 64;
icnt = 1;
} else {
initial_out_buf_size = buf_len;
icnt = buf_len;
}
out_buf_size = ocnt = prev_ocnt = initial_out_buf_size;
if (NULL == (out_buf = pemalloc(out_buf_size, persistent))) {
return FAILURE;
}
pd = out_buf;
if (self->stub_len > 0) {
pt = self->stub;
tcnt = self->stub_len;
while (tcnt > 0) {
if (iconv(self->cd, &pt, &tcnt, &pd, &ocnt) == (size_t)-1) {
#if ICONV_SUPPORTS_ERRNO
switch (errno) {
case EILSEQ:
php_error_docref(NULL TSRMLS_CC, E_WARNING, "iconv stream filter (\"%s\"=>\"%s\"): invalid multibyte sequence", self->from_charset, self->to_charset);
goto out_failure;
case EINVAL:
if (ps != NULL) {
if (icnt > 0) {
if (self->stub_len >= sizeof(self->stub)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "iconv stream filter (\"%s\"=>\"%s\"): insufficient buffer", self->from_charset, self->to_charset);
goto out_failure;
}
self->stub[self->stub_len++] = *(ps++);
icnt--;
pt = self->stub;
tcnt = self->stub_len;
} else {
tcnt = 0;
break;
}
}
break;
case E2BIG: {
char *new_out_buf;
size_t new_out_buf_size;
new_out_buf_size = out_buf_size << 1;
if (new_out_buf_size < out_buf_size) {
/* whoa! no bigger buckets are sold anywhere... */
if (NULL == (new_bucket = php_stream_bucket_new(stream, out_buf, (out_buf_size - ocnt), 1, persistent TSRMLS_CC))) {
goto out_failure;
}
php_stream_bucket_append(buckets_out, new_bucket TSRMLS_CC);
out_buf_size = ocnt = initial_out_buf_size;
if (NULL == (out_buf = pemalloc(out_buf_size, persistent))) {
return FAILURE;
}
pd = out_buf;
} else {
if (NULL == (new_out_buf = perealloc(out_buf, new_out_buf_size, persistent))) {
if (NULL == (new_bucket = php_stream_bucket_new(stream, out_buf, (out_buf_size - ocnt), 1, persistent TSRMLS_CC))) {
goto out_failure;
}
php_stream_bucket_append(buckets_out, new_bucket TSRMLS_CC);
return FAILURE;
}
pd = new_out_buf + (pd - out_buf);
ocnt += (new_out_buf_size - out_buf_size);
out_buf = new_out_buf;
out_buf_size = new_out_buf_size;
}
} break;
default:
php_error_docref(NULL TSRMLS_CC, E_WARNING, "iconv stream filter (\"%s\"=>\"%s\"): unknown error", self->from_charset, self->to_charset);
goto out_failure;
}
#else
if (ocnt == prev_ocnt) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "iconv stream filter (\"%s\"=>\"%s\"): unknown error", self->from_charset, self->to_charset);
goto out_failure;
}
#endif
}
prev_ocnt = ocnt;
}
memmove(self->stub, pt, tcnt);
self->stub_len = tcnt;
}
while (icnt > 0) {
if ((ps == NULL ? iconv(self->cd, NULL, NULL, &pd, &ocnt):
iconv(self->cd, (char **)&ps, &icnt, &pd, &ocnt)) == (size_t)-1) {
#if ICONV_SUPPORTS_ERRNO
switch (errno) {
case EILSEQ:
php_error_docref(NULL TSRMLS_CC, E_WARNING, "iconv stream filter (\"%s\"=>\"%s\"): invalid multibyte sequence", self->from_charset, self->to_charset);
goto out_failure;
case EINVAL:
if (ps != NULL) {
if (icnt > sizeof(self->stub)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "iconv stream filter (\"%s\"=>\"%s\"): insufficient buffer", self->from_charset, self->to_charset);
goto out_failure;
}
memcpy(self->stub, ps, icnt);
self->stub_len = icnt;
ps += icnt;
icnt = 0;
} else {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "iconv stream filter (\"%s\"=>\"%s\"): unexpected octet values", self->from_charset, self->to_charset);
goto out_failure;
}
break;
case E2BIG: {
char *new_out_buf;
size_t new_out_buf_size;
new_out_buf_size = out_buf_size << 1;
if (new_out_buf_size < out_buf_size) {
/* whoa! no bigger buckets are sold anywhere... */
if (NULL == (new_bucket = php_stream_bucket_new(stream, out_buf, (out_buf_size - ocnt), 1, persistent TSRMLS_CC))) {
goto out_failure;
}
php_stream_bucket_append(buckets_out, new_bucket TSRMLS_CC);
out_buf_size = ocnt = initial_out_buf_size;
if (NULL == (out_buf = pemalloc(out_buf_size, persistent))) {
return FAILURE;
}
pd = out_buf;
} else {
if (NULL == (new_out_buf = perealloc(out_buf, new_out_buf_size, persistent))) {
if (NULL == (new_bucket = php_stream_bucket_new(stream, out_buf, (out_buf_size - ocnt), 1, persistent TSRMLS_CC))) {
goto out_failure;
}
php_stream_bucket_append(buckets_out, new_bucket TSRMLS_CC);
return FAILURE;
}
pd = new_out_buf + (pd - out_buf);
ocnt += (new_out_buf_size - out_buf_size);
out_buf = new_out_buf;
out_buf_size = new_out_buf_size;
}
} break;
default:
php_error_docref(NULL TSRMLS_CC, E_WARNING, "iconv stream filter (\"%s\"=>\"%s\"): unknown error", self->from_charset, self->to_charset);
goto out_failure;
}
#else
if (ocnt == prev_ocnt) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "iconv stream filter (\"%s\"=>\"%s\"): unknown error", self->from_charset, self->to_charset);
goto out_failure;
}
#endif
} else {
if (ps == NULL) {
break;
}
}
prev_ocnt = ocnt;
}
if (out_buf_size - ocnt > 0) {
if (NULL == (new_bucket = php_stream_bucket_new(stream, out_buf, (out_buf_size - ocnt), 1, persistent TSRMLS_CC))) {
goto out_failure;
}
php_stream_bucket_append(buckets_out, new_bucket TSRMLS_CC);
} else {
pefree(out_buf, persistent);
}
*consumed += buf_len - icnt;
return SUCCESS;
out_failure:
pefree(out_buf, persistent);
return FAILURE;
}
/* }}} php_iconv_stream_filter_append_bucket */
/* {{{ php_iconv_stream_filter_do_filter */
static php_stream_filter_status_t php_iconv_stream_filter_do_filter(
php_stream *stream, php_stream_filter *filter,
php_stream_bucket_brigade *buckets_in,
php_stream_bucket_brigade *buckets_out,
size_t *bytes_consumed, int flags TSRMLS_DC)
{
php_stream_bucket *bucket = NULL;
size_t consumed = 0;
php_iconv_stream_filter *self = (php_iconv_stream_filter *)filter->abstract;
while (buckets_in->head != NULL) {
bucket = buckets_in->head;
php_stream_bucket_unlink(bucket TSRMLS_CC);
if (php_iconv_stream_filter_append_bucket(self, stream, filter,
buckets_out, bucket->buf, bucket->buflen, &consumed,
php_stream_is_persistent(stream) TSRMLS_CC) != SUCCESS) {
goto out_failure;
}
php_stream_bucket_delref(bucket TSRMLS_CC);
}
if (flags != PSFS_FLAG_NORMAL) {
if (php_iconv_stream_filter_append_bucket(self, stream, filter,
buckets_out, NULL, 0, &consumed,
php_stream_is_persistent(stream) TSRMLS_CC) != SUCCESS) {
goto out_failure;
}
}
if (bytes_consumed != NULL) {
*bytes_consumed = consumed;
}
return PSFS_PASS_ON;
out_failure:
if (bucket != NULL) {
php_stream_bucket_delref(bucket TSRMLS_CC);
}
return PSFS_ERR_FATAL;
}
/* }}} */
/* {{{ php_iconv_stream_filter_cleanup */
static void php_iconv_stream_filter_cleanup(php_stream_filter *filter TSRMLS_DC)
{
php_iconv_stream_filter_dtor((php_iconv_stream_filter *)filter->abstract);
pefree(filter->abstract, ((php_iconv_stream_filter *)filter->abstract)->persistent);
}
/* }}} */
static php_stream_filter_ops php_iconv_stream_filter_ops = {
php_iconv_stream_filter_do_filter,
php_iconv_stream_filter_cleanup,
"convert.iconv.*"
};
/* {{{ php_iconv_stream_filter_create */
static php_stream_filter *php_iconv_stream_filter_factory_create(const char *name, zval *params, int persistent TSRMLS_DC)
{
php_stream_filter *retval = NULL;
php_iconv_stream_filter *inst;
char *from_charset = NULL, *to_charset = NULL;
size_t from_charset_len, to_charset_len;
if ((from_charset = strchr(name, '.')) == NULL) {
return NULL;
}
++from_charset;
if ((from_charset = strchr(from_charset, '.')) == NULL) {
return NULL;
}
++from_charset;
if ((to_charset = strpbrk(from_charset, "/.")) == NULL) {
return NULL;
}
from_charset_len = to_charset - from_charset;
++to_charset;
to_charset_len = strlen(to_charset);
if (from_charset_len >= ICONV_CSNMAXLEN || to_charset_len >= ICONV_CSNMAXLEN) {
return NULL;
}
if (NULL == (inst = pemalloc(sizeof(php_iconv_stream_filter), persistent))) {
return NULL;
}
if (php_iconv_stream_filter_ctor(inst, to_charset, to_charset_len, from_charset, from_charset_len, persistent) != PHP_ICONV_ERR_SUCCESS) {
pefree(inst, persistent);
return NULL;
}
if (NULL == (retval = php_stream_filter_alloc(&php_iconv_stream_filter_ops, inst, persistent))) {
php_iconv_stream_filter_dtor(inst);
pefree(inst, persistent);
}
return retval;
}
/* }}} */
/* {{{ php_iconv_stream_register_factory */
static php_iconv_err_t php_iconv_stream_filter_register_factory(TSRMLS_D)
{
static php_stream_filter_factory filter_factory = {
php_iconv_stream_filter_factory_create
};
if (FAILURE == php_stream_filter_register_factory(
php_iconv_stream_filter_ops.label,
&filter_factory TSRMLS_CC)) {
return PHP_ICONV_ERR_UNKNOWN;
}
return PHP_ICONV_ERR_SUCCESS;
}
/* }}} */
/* {{{ php_iconv_stream_unregister_factory */
static php_iconv_err_t php_iconv_stream_filter_unregister_factory(TSRMLS_D)
{
if (FAILURE == php_stream_filter_unregister_factory(
php_iconv_stream_filter_ops.label TSRMLS_CC)) {
return PHP_ICONV_ERR_UNKNOWN;
}
return PHP_ICONV_ERR_SUCCESS;
}
/* }}} */
/* }}} */
#endif
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: sw=4 ts=4 fdm=marker
* vim<600: sw=4 ts=4
*/
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