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3bc8a958c5
php-src/ext/json/json.c
Dmitry Stogov 3bc8a958c5 Fixed useless or duplicated IS_INTERNED() checks
2014-09-19 15:41:01 +04:00

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/*
+----------------------------------------------------------------------+
| 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. |
+----------------------------------------------------------------------+
| Author: Omar Kilani <omar@php.net> |
+----------------------------------------------------------------------+
*/
/* $Id$ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "php_ini.h"
#include "ext/standard/info.h"
#include "ext/standard/html.h"
#include "ext/standard/php_smart_str.h"
#include "JSON_parser.h"
#include "php_json.h"
#include <zend_exceptions.h>
static PHP_MINFO_FUNCTION(json);
static PHP_FUNCTION(json_encode);
static PHP_FUNCTION(json_decode);
static PHP_FUNCTION(json_last_error);
static PHP_FUNCTION(json_last_error_msg);
static const char digits[] = "0123456789abcdef";
PHP_JSON_API zend_class_entry *php_json_serializable_ce;
ZEND_DECLARE_MODULE_GLOBALS(json)
/* {{{ arginfo */
ZEND_BEGIN_ARG_INFO_EX(arginfo_json_encode, 0, 0, 1)
ZEND_ARG_INFO(0, value)
ZEND_ARG_INFO(0, options)
ZEND_ARG_INFO(0, depth)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO_EX(arginfo_json_decode, 0, 0, 1)
ZEND_ARG_INFO(0, json)
ZEND_ARG_INFO(0, assoc)
ZEND_ARG_INFO(0, depth)
ZEND_ARG_INFO(0, options)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_json_last_error, 0)
ZEND_END_ARG_INFO()
ZEND_BEGIN_ARG_INFO(arginfo_json_last_error_msg, 0)
ZEND_END_ARG_INFO()
/* }}} */
/* {{{ json_functions[] */
static const zend_function_entry json_functions[] = {
PHP_FE(json_encode, arginfo_json_encode)
PHP_FE(json_decode, arginfo_json_decode)
PHP_FE(json_last_error, arginfo_json_last_error)
PHP_FE(json_last_error_msg, arginfo_json_last_error_msg)
PHP_FE_END
};
/* }}} */
/* {{{ JsonSerializable methods */
ZEND_BEGIN_ARG_INFO(json_serialize_arginfo, 0)
/* No arguments */
ZEND_END_ARG_INFO();
static const zend_function_entry json_serializable_interface[] = {
PHP_ABSTRACT_ME(JsonSerializable, jsonSerialize, json_serialize_arginfo)
PHP_FE_END
};
/* }}} */
/* {{{ MINIT */
static PHP_MINIT_FUNCTION(json)
{
zend_class_entry ce;
INIT_CLASS_ENTRY(ce, "JsonSerializable", json_serializable_interface);
php_json_serializable_ce = zend_register_internal_interface(&ce TSRMLS_CC);
REGISTER_LONG_CONSTANT("JSON_HEX_TAG", PHP_JSON_HEX_TAG, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("JSON_HEX_AMP", PHP_JSON_HEX_AMP, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("JSON_HEX_APOS", PHP_JSON_HEX_APOS, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("JSON_HEX_QUOT", PHP_JSON_HEX_QUOT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("JSON_FORCE_OBJECT", PHP_JSON_FORCE_OBJECT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("JSON_NUMERIC_CHECK", PHP_JSON_NUMERIC_CHECK, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("JSON_UNESCAPED_SLASHES", PHP_JSON_UNESCAPED_SLASHES, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("JSON_PRETTY_PRINT", PHP_JSON_PRETTY_PRINT, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("JSON_UNESCAPED_UNICODE", PHP_JSON_UNESCAPED_UNICODE, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("JSON_PARTIAL_OUTPUT_ON_ERROR", PHP_JSON_PARTIAL_OUTPUT_ON_ERROR, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("JSON_ERROR_NONE", PHP_JSON_ERROR_NONE, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("JSON_ERROR_DEPTH", PHP_JSON_ERROR_DEPTH, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("JSON_ERROR_STATE_MISMATCH", PHP_JSON_ERROR_STATE_MISMATCH, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("JSON_ERROR_CTRL_CHAR", PHP_JSON_ERROR_CTRL_CHAR, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("JSON_ERROR_SYNTAX", PHP_JSON_ERROR_SYNTAX, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("JSON_ERROR_UTF8", PHP_JSON_ERROR_UTF8, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("JSON_ERROR_RECURSION", PHP_JSON_ERROR_RECURSION, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("JSON_ERROR_INF_OR_NAN", PHP_JSON_ERROR_INF_OR_NAN, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("JSON_ERROR_UNSUPPORTED_TYPE", PHP_JSON_ERROR_UNSUPPORTED_TYPE, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("JSON_OBJECT_AS_ARRAY", PHP_JSON_OBJECT_AS_ARRAY, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("JSON_BIGINT_AS_STRING", PHP_JSON_BIGINT_AS_STRING, CONST_CS | CONST_PERSISTENT);
return SUCCESS;
}
/* }}} */
/* {{{ PHP_GINIT_FUNCTION
*/
static PHP_GINIT_FUNCTION(json)
{
json_globals->encoder_depth = 0;
json_globals->error_code = 0;
json_globals->encode_max_depth = 0;
}
/* }}} */
/* {{{ json_module_entry
*/
zend_module_entry json_module_entry = {
STANDARD_MODULE_HEADER,
"json",
json_functions,
PHP_MINIT(json),
NULL,
NULL,
NULL,
PHP_MINFO(json),
PHP_JSON_VERSION,
PHP_MODULE_GLOBALS(json),
PHP_GINIT(json),
NULL,
NULL,
STANDARD_MODULE_PROPERTIES_EX
};
/* }}} */
#ifdef COMPILE_DL_JSON
ZEND_GET_MODULE(json)
#endif
/* {{{ PHP_MINFO_FUNCTION
*/
static PHP_MINFO_FUNCTION(json)
{
php_info_print_table_start();
php_info_print_table_row(2, "json support", "enabled");
php_info_print_table_row(2, "json version", PHP_JSON_VERSION);
php_info_print_table_end();
}
/* }}} */
static void json_escape_string(smart_str *buf, char *s, size_t len, int options TSRMLS_DC);
static int json_determine_array_type(zval *val TSRMLS_DC) /* {{{ */
{
int i;
HashTable *myht = HASH_OF(val);
i = myht ? zend_hash_num_elements(myht) : 0;
if (i > 0) {
zend_string *key;
zend_ulong index, idx;
idx = 0;
ZEND_HASH_FOREACH_KEY(myht, index, key) {
if (key) {
return PHP_JSON_OUTPUT_OBJECT;
} else {
if (index != idx) {
return PHP_JSON_OUTPUT_OBJECT;
}
}
idx++;
} ZEND_HASH_FOREACH_END();
}
return PHP_JSON_OUTPUT_ARRAY;
}
/* }}} */
/* {{{ Pretty printing support functions */
static inline void json_pretty_print_char(smart_str *buf, int options, char c TSRMLS_DC) /* {{{ */
{
if (options & PHP_JSON_PRETTY_PRINT) {
smart_str_appendc(buf, c);
}
}
/* }}} */
static inline void json_pretty_print_indent(smart_str *buf, int options TSRMLS_DC) /* {{{ */
{
int i;
if (options & PHP_JSON_PRETTY_PRINT) {
for (i = 0; i < JSON_G(encoder_depth); ++i) {
smart_str_appendl(buf, " ", 4);
}
}
}
/* }}} */
/* }}} */
static void json_encode_array(smart_str *buf, zval *val, int options TSRMLS_DC) /* {{{ */
{
int i, r, need_comma = 0;
HashTable *myht;
if (Z_TYPE_P(val) == IS_ARRAY) {
myht = HASH_OF(val);
r = (options & PHP_JSON_FORCE_OBJECT) ? PHP_JSON_OUTPUT_OBJECT : json_determine_array_type(val TSRMLS_CC);
} else {
myht = Z_OBJPROP_P(val);
r = PHP_JSON_OUTPUT_OBJECT;
}
if (myht && ZEND_HASH_GET_APPLY_COUNT(myht) > 1) {
JSON_G(error_code) = PHP_JSON_ERROR_RECURSION;
smart_str_appendl(buf, "null", 4);
return;
}
if (r == PHP_JSON_OUTPUT_ARRAY) {
smart_str_appendc(buf, '[');
} else {
smart_str_appendc(buf, '{');
}
++JSON_G(encoder_depth);
i = myht ? zend_hash_num_elements(myht) : 0;
if (i > 0) {
zend_string *key;
zval *data;
zend_ulong index;
HashTable *tmp_ht;
ZEND_HASH_FOREACH_KEY_VAL_IND(myht, index, key, data) {
ZVAL_DEREF(data);
tmp_ht = HASH_OF(data);
if (tmp_ht && ZEND_HASH_APPLY_PROTECTION(tmp_ht)) {
ZEND_HASH_INC_APPLY_COUNT(tmp_ht);
}
if (r == PHP_JSON_OUTPUT_ARRAY) {
if (need_comma) {
smart_str_appendc(buf, ',');
} else {
need_comma = 1;
}
json_pretty_print_char(buf, options, '\n' TSRMLS_CC);
json_pretty_print_indent(buf, options TSRMLS_CC);
php_json_encode(buf, data, options TSRMLS_CC);
} else if (r == PHP_JSON_OUTPUT_OBJECT) {
if (key) {
if (key->val[0] == '\0' && Z_TYPE_P(val) == IS_OBJECT) {
/* Skip protected and private members. */
if (tmp_ht && ZEND_HASH_APPLY_PROTECTION(tmp_ht)) {
ZEND_HASH_DEC_APPLY_COUNT(tmp_ht);
}
continue;
}
if (need_comma) {
smart_str_appendc(buf, ',');
} else {
need_comma = 1;
}
json_pretty_print_char(buf, options, '\n' TSRMLS_CC);
json_pretty_print_indent(buf, options TSRMLS_CC);
json_escape_string(buf, key->val, key->len, options & ~PHP_JSON_NUMERIC_CHECK TSRMLS_CC);
smart_str_appendc(buf, ':');
json_pretty_print_char(buf, options, ' ' TSRMLS_CC);
php_json_encode(buf, data, options TSRMLS_CC);
} else {
if (need_comma) {
smart_str_appendc(buf, ',');
} else {
need_comma = 1;
}
json_pretty_print_char(buf, options, '\n' TSRMLS_CC);
json_pretty_print_indent(buf, options TSRMLS_CC);
smart_str_appendc(buf, '"');
smart_str_append_long(buf, (zend_long) index);
smart_str_appendc(buf, '"');
smart_str_appendc(buf, ':');
json_pretty_print_char(buf, options, ' ' TSRMLS_CC);
php_json_encode(buf, data, options TSRMLS_CC);
}
}
if (tmp_ht && ZEND_HASH_APPLY_PROTECTION(tmp_ht)) {
ZEND_HASH_DEC_APPLY_COUNT(tmp_ht);
}
} ZEND_HASH_FOREACH_END();
}
if (JSON_G(encoder_depth) > JSON_G(encode_max_depth)) {
JSON_G(error_code) = PHP_JSON_ERROR_DEPTH;
}
--JSON_G(encoder_depth);
/* Only keep closing bracket on same line for empty arrays/objects */
if (need_comma) {
json_pretty_print_char(buf, options, '\n' TSRMLS_CC);
json_pretty_print_indent(buf, options TSRMLS_CC);
}
if (r == PHP_JSON_OUTPUT_ARRAY) {
smart_str_appendc(buf, ']');
} else {
smart_str_appendc(buf, '}');
}
}
/* }}} */
static int json_utf8_to_utf16(unsigned short *utf16, char utf8[], int len) /* {{{ */
{
size_t pos = 0, us;
int j, status;
if (utf16) {
/* really convert the utf8 string */
for (j=0 ; pos < len ; j++) {
us = php_next_utf8_char((const unsigned char *)utf8, len, &pos, &status);
if (status != SUCCESS) {
return -1;
}
/* From http://en.wikipedia.org/wiki/UTF16 */
if (us >= 0x10000) {
us -= 0x10000;
utf16[j++] = (unsigned short)((us >> 10) | 0xd800);
utf16[j] = (unsigned short)((us & 0x3ff) | 0xdc00);
} else {
utf16[j] = (unsigned short)us;
}
}
} else {
/* Only check if utf8 string is valid, and compute utf16 length */
for (j=0 ; pos < len ; j++) {
us = php_next_utf8_char((const unsigned char *)utf8, len, &pos, &status);
if (status != SUCCESS) {
return -1;
}
if (us >= 0x10000) {
j++;
}
}
}
return j;
}
/* }}} */
static void json_escape_string(smart_str *buf, char *s, size_t len, int options TSRMLS_DC) /* {{{ */
{
int status;
unsigned int us, next_us = 0;
size_t pos, checkpoint, newlen;
if (len == 0) {
smart_str_appendl(buf, "\"\"", 2);
return;
}
if (options & PHP_JSON_NUMERIC_CHECK) {
double d;
int type;
zend_long p;
if ((type = is_numeric_string(s, len, &p, &d, 0)) != 0) {
if (type == IS_LONG) {
smart_str_append_long(buf, p);
} else if (type == IS_DOUBLE) {
if (!zend_isinf(d) && !zend_isnan(d)) {
char *tmp;
int l = spprintf(&tmp, 0, "%.*k", (int) EG(precision), d);
smart_str_appendl(buf, tmp, l);
efree(tmp);
} else {
JSON_G(error_code) = PHP_JSON_ERROR_INF_OR_NAN;
smart_str_appendc(buf, '0');
}
}
return;
}
}
if (options & PHP_JSON_UNESCAPED_UNICODE) {
/* validate UTF-8 string first */
if (json_utf8_to_utf16(NULL, s, len) < 0) {
JSON_G(error_code) = PHP_JSON_ERROR_UTF8;
smart_str_appendl(buf, "null", 4);
return;
}
}
pos = 0;
checkpoint = buf->s ? buf->s->len : 0;
/* pre-allocate for string length plus 2 quotes */
smart_str_alloc(buf, len+2, 0);
smart_str_appendc(buf, '"');
do {
if (UNEXPECTED(next_us)) {
us = next_us;
next_us = 0;
} else {
us = (unsigned char)s[pos];
if (!(options & PHP_JSON_UNESCAPED_UNICODE) && us >= 0x80) {
/* UTF-8 character */
us = php_next_utf8_char((const unsigned char *)s, len, &pos, &status);
if (status != SUCCESS) {
if (buf->s) {
buf->s->len = checkpoint;
}
JSON_G(error_code) = PHP_JSON_ERROR_UTF8;
smart_str_appendl(buf, "null", 4);
return;
}
/* From http://en.wikipedia.org/wiki/UTF16 */
if (us >= 0x10000) {
us -= 0x10000;
next_us = (unsigned short)((us & 0x3ff) | 0xdc00);
us = (unsigned short)((us >> 10) | 0xd800);
}
} else {
pos++;
}
}
switch (us) {
case '"':
if (options & PHP_JSON_HEX_QUOT) {
smart_str_appendl(buf, "\\u0022", 6);
} else {
smart_str_appendl(buf, "\\\"", 2);
}
break;
case '\\':
smart_str_appendl(buf, "\\\\", 2);
break;
case '/':
if (options & PHP_JSON_UNESCAPED_SLASHES) {
smart_str_appendc(buf, '/');
} else {
smart_str_appendl(buf, "\\/", 2);
}
break;
case '\b':
smart_str_appendl(buf, "\\b", 2);
break;
case '\f':
smart_str_appendl(buf, "\\f", 2);
break;
case '\n':
smart_str_appendl(buf, "\\n", 2);
break;
case '\r':
smart_str_appendl(buf, "\\r", 2);
break;
case '\t':
smart_str_appendl(buf, "\\t", 2);
break;
case '<':
if (options & PHP_JSON_HEX_TAG) {
smart_str_appendl(buf, "\\u003C", 6);
} else {
smart_str_appendc(buf, '<');
}
break;
case '>':
if (options & PHP_JSON_HEX_TAG) {
smart_str_appendl(buf, "\\u003E", 6);
} else {
smart_str_appendc(buf, '>');
}
break;
case '&':
if (options & PHP_JSON_HEX_AMP) {
smart_str_appendl(buf, "\\u0026", 6);
} else {
smart_str_appendc(buf, '&');
}
break;
case '\'':
if (options & PHP_JSON_HEX_APOS) {
smart_str_appendl(buf, "\\u0027", 6);
} else {
smart_str_appendc(buf, '\'');
}
break;
default:
if (us >= ' ' && ((options & PHP_JSON_UNESCAPED_UNICODE) || (us & 127) == us)) {
smart_str_appendc(buf, (unsigned char) us);
} else {
smart_str_appendl(buf, "\\u", 2);
smart_str_appendc(buf, digits[(us & 0xf000) >> 12]);
smart_str_appendc(buf, digits[(us & 0xf00) >> 8]);
smart_str_appendc(buf, digits[(us & 0xf0) >> 4]);
smart_str_appendc(buf, digits[(us & 0xf)]);
}
break;
}
} while (pos < len || next_us);
smart_str_appendc(buf, '"');
}
/* }}} */
static void json_encode_serializable_object(smart_str *buf, zval *val, int options TSRMLS_DC) /* {{{ */
{
zend_class_entry *ce = Z_OBJCE_P(val);
zval retval, fname;
HashTable* myht;
if (Z_TYPE_P(val) == IS_ARRAY) {
myht = HASH_OF(val);
} else {
myht = Z_OBJPROP_P(val);
}
if (myht && ZEND_HASH_GET_APPLY_COUNT(myht) > 1) {
JSON_G(error_code) = PHP_JSON_ERROR_RECURSION;
smart_str_appendl(buf, "null", 4);
return;
}
ZVAL_STRING(&fname, "jsonSerialize");
if (FAILURE == call_user_function_ex(EG(function_table), val, &fname, &retval, 0, NULL, 1, NULL TSRMLS_CC) || Z_TYPE(retval) == IS_UNDEF) {
zend_throw_exception_ex(NULL, 0 TSRMLS_CC, "Failed calling %s::jsonSerialize()", ce->name);
smart_str_appendl(buf, "null", sizeof("null") - 1);
zval_ptr_dtor(&fname);
return;
}
if (EG(exception)) {
/* Error already raised */
zval_ptr_dtor(&retval);
zval_ptr_dtor(&fname);
smart_str_appendl(buf, "null", sizeof("null") - 1);
return;
}
if ((Z_TYPE(retval) == IS_OBJECT) &&
(Z_OBJ_HANDLE(retval) == Z_OBJ_HANDLE_P(val))) {
/* Handle the case where jsonSerialize does: return $this; by going straight to encode array */
json_encode_array(buf, &retval, options TSRMLS_CC);
} else {
/* All other types, encode as normal */
php_json_encode(buf, &retval, options TSRMLS_CC);
}
zval_ptr_dtor(&retval);
zval_ptr_dtor(&fname);
}
/* }}} */
PHP_JSON_API void php_json_encode(smart_str *buf, zval *val, int options TSRMLS_DC) /* {{{ */
{
again:
switch (Z_TYPE_P(val))
{
case IS_NULL:
smart_str_appendl(buf, "null", 4);
break;
case IS_TRUE:
smart_str_appendl(buf, "true", 4);
break;
case IS_FALSE:
smart_str_appendl(buf, "false", 5);
break;
case IS_LONG:
smart_str_append_long(buf, Z_LVAL_P(val));
break;
case IS_DOUBLE:
{
char *d = NULL;
int len;
double dbl = Z_DVAL_P(val);
if (!zend_isinf(dbl) && !zend_isnan(dbl)) {
len = spprintf(&d, 0, "%.*k", (int) EG(precision), dbl);
smart_str_appendl(buf, d, len);
efree(d);
} else {
JSON_G(error_code) = PHP_JSON_ERROR_INF_OR_NAN;
smart_str_appendc(buf, '0');
}
}
break;
case IS_STRING:
json_escape_string(buf, Z_STRVAL_P(val), Z_STRLEN_P(val), options TSRMLS_CC);
break;
case IS_OBJECT:
if (instanceof_function(Z_OBJCE_P(val), php_json_serializable_ce TSRMLS_CC)) {
json_encode_serializable_object(buf, val, options TSRMLS_CC);
break;
}
/* fallthrough -- Non-serializable object */
case IS_ARRAY:
json_encode_array(buf, val, options TSRMLS_CC);
break;
case IS_REFERENCE:
val = Z_REFVAL_P(val);
goto again;
default:
JSON_G(error_code) = PHP_JSON_ERROR_UNSUPPORTED_TYPE;
smart_str_appendl(buf, "null", 4);
break;
}
return;
}
/* }}} */
PHP_JSON_API void php_json_decode_ex(zval *return_value, char *str, size_t str_len, zend_long options, zend_long depth TSRMLS_DC) /* {{{ */
{
size_t utf16_len;
unsigned short *utf16;
JSON_parser jp;
utf16 = (unsigned short *) safe_emalloc((str_len+1), sizeof(unsigned short), 1);
utf16_len = json_utf8_to_utf16(utf16, str, str_len);
if (utf16_len <= 0) {
if (utf16) {
efree(utf16);
}
JSON_G(error_code) = PHP_JSON_ERROR_UTF8;
RETURN_NULL();
}
if (depth <= 0) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "Depth must be greater than zero");
efree(utf16);
RETURN_NULL();
}
jp = new_JSON_parser(depth);
if (!parse_JSON_ex(jp, return_value, utf16, utf16_len, options TSRMLS_CC)) {
double d;
int type, overflow_info;
zend_long p;
char *trim = str;
int trim_len = str_len;
zval_dtor(return_value);
/* Increment trimmed string pointer to strip leading whitespace */
/* JSON RFC says to consider as whitespace: space, tab, LF or CR */
while (trim_len && (*trim == ' ' || *trim == '\t' || *trim == '\n' || *trim == '\r')) {
trim++;
trim_len--;
}
/* Decrement trimmed string length to strip trailing whitespace */
while (trim_len && (trim[trim_len - 1] == ' ' || trim[trim_len - 1] == '\t' || trim[trim_len - 1] == '\n' || trim[trim_len - 1] == '\r')) {
trim_len--;
}
RETVAL_NULL();
if (trim_len == 4) {
if (!strncmp(trim, "null", trim_len)) {
/* We need to explicitly clear the error because its an actual NULL and not an error */
jp->error_code = PHP_JSON_ERROR_NONE;
RETVAL_NULL();
} else if (!strncmp(trim, "true", trim_len)) {
RETVAL_BOOL(1);
}
} else if (trim_len == 5 && !strncmp(trim, "false", trim_len)) {
RETVAL_BOOL(0);
}
if ((type = is_numeric_string_ex(trim, trim_len, &p, &d, 0, &overflow_info)) != 0) {
if (type == IS_LONG) {
RETVAL_LONG(p);
} else if (type == IS_DOUBLE) {
if (options & PHP_JSON_BIGINT_AS_STRING && overflow_info) {
/* Within an object or array, a numeric literal is assumed
* to be an integer if and only if it's entirely made up of
* digits (exponent notation will result in the number
* being treated as a double). We'll match that behaviour
* here. */
int i;
zend_bool is_float = 0;
for (i = (trim[0] == '-' ? 1 : 0); i < trim_len; i++) {
/* Not using isdigit() because it's locale specific,
* but we expect JSON input to always be UTF-8. */
if (trim[i] < '0' || trim[i] > '9') {
is_float = 1;
break;
}
}
if (is_float) {
RETVAL_DOUBLE(d);
} else {
RETVAL_STRINGL(trim, trim_len);
}
} else {
RETVAL_DOUBLE(d);
}
}
}
if (Z_TYPE_P(return_value) != IS_NULL) {
jp->error_code = PHP_JSON_ERROR_NONE;
}
}
efree(utf16);
JSON_G(error_code) = jp->error_code;
free_JSON_parser(jp);
}
/* }}} */
/* {{{ proto string json_encode(mixed data [, int options[, int depth]])
Returns the JSON representation of a value */
static PHP_FUNCTION(json_encode)
{
zval *parameter;
smart_str buf = {0};
zend_long options = 0;
zend_long depth = JSON_PARSER_DEFAULT_DEPTH;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z|ll", &parameter, &options, &depth) == FAILURE) {
return;
}
JSON_G(error_code) = PHP_JSON_ERROR_NONE;
JSON_G(encode_max_depth) = depth;
php_json_encode(&buf, parameter, options TSRMLS_CC);
if (JSON_G(error_code) != PHP_JSON_ERROR_NONE && !(options & PHP_JSON_PARTIAL_OUTPUT_ON_ERROR)) {
smart_str_free(&buf);
ZVAL_FALSE(return_value);
} else {
smart_str_0(&buf); /* copy? */
ZVAL_NEW_STR(return_value, buf.s);
}
}
/* }}} */
/* {{{ proto mixed json_decode(string json [, bool assoc [, long depth]])
Decodes the JSON representation into a PHP value */
static PHP_FUNCTION(json_decode)
{
char *str;
size_t str_len;
zend_bool assoc = 0; /* return JS objects as PHP objects by default */
zend_long depth = JSON_PARSER_DEFAULT_DEPTH;
zend_long options = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|bll", &str, &str_len, &assoc, &depth, &options) == FAILURE) {
return;
}
JSON_G(error_code) = 0;
if (!str_len) {
RETURN_NULL();
}
/* For BC reasons, the bool $assoc overrides the long $options bit for PHP_JSON_OBJECT_AS_ARRAY */
if (assoc) {
options |= PHP_JSON_OBJECT_AS_ARRAY;
} else {
options &= ~PHP_JSON_OBJECT_AS_ARRAY;
}
php_json_decode_ex(return_value, str, str_len, options, depth TSRMLS_CC);
}
/* }}} */
/* {{{ proto int json_last_error()
Returns the error code of the last json_encode() or json_decode() call. */
static PHP_FUNCTION(json_last_error)
{
if (zend_parse_parameters_none() == FAILURE) {
return;
}
RETURN_LONG(JSON_G(error_code));
}
/* }}} */
/* {{{ proto string json_last_error_msg()
Returns the error string of the last json_encode() or json_decode() call. */
static PHP_FUNCTION(json_last_error_msg)
{
if (zend_parse_parameters_none() == FAILURE) {
return;
}
switch(JSON_G(error_code)) {
case PHP_JSON_ERROR_NONE:
RETURN_STRING("No error");
case PHP_JSON_ERROR_DEPTH:
RETURN_STRING("Maximum stack depth exceeded");
case PHP_JSON_ERROR_STATE_MISMATCH:
RETURN_STRING("State mismatch (invalid or malformed JSON)");
case PHP_JSON_ERROR_CTRL_CHAR:
RETURN_STRING("Control character error, possibly incorrectly encoded");
case PHP_JSON_ERROR_SYNTAX:
RETURN_STRING("Syntax error");
case PHP_JSON_ERROR_UTF8:
RETURN_STRING("Malformed UTF-8 characters, possibly incorrectly encoded");
case PHP_JSON_ERROR_RECURSION:
RETURN_STRING("Recursion detected");
case PHP_JSON_ERROR_INF_OR_NAN:
RETURN_STRING("Inf and NaN cannot be JSON encoded");
case PHP_JSON_ERROR_UNSUPPORTED_TYPE:
RETURN_STRING("Type is not supported");
default:
RETURN_STRING("Unknown error");
}
}
/* }}} */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: noet sw=4 ts=4 fdm=marker
* vim<600: noet sw=4 ts=4
*/
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