--- /dev/null
- if (!zend_isinf(d) && !zend_isnan(d)) {
- size_t len;
- char num[PHP_JSON_DOUBLE_MAX_LENGTH];
- php_gcvt(d, EG(precision), '.', 'e', &num[0]);
- len = strlen(num);
- if (options & PHP_JSON_PRESERVE_ZERO_FRACTION && strchr(num, '.') == NULL && len < PHP_JSON_DOUBLE_MAX_LENGTH - 2) {
- num[len++] = '.';
- num[len++] = '0';
- num[len] = '\0';
- }
- smart_str_appendl(buf, num, len);
- } else {
- JSON_G(error_code) = PHP_JSON_ERROR_INF_OR_NAN;
- smart_str_appendc(buf, '0');
+/*
+ +----------------------------------------------------------------------+
+ | PHP Version 7 |
+ +----------------------------------------------------------------------+
+ | Copyright (c) 1997-2015 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> |
+ | Jakub Zelenka <bukka@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 "zend_smart_str.h"
+#include "php_json.h"
+#include <zend_exceptions.h>
+
+/* double limits */
+#include <float.h>
+#if defined(DBL_MANT_DIG) && defined(DBL_MIN_EXP)
+#define PHP_JSON_DOUBLE_MAX_LENGTH (3 + DBL_MANT_DIG - DBL_MIN_EXP)
+#else
+#define PHP_JSON_DOUBLE_MAX_LENGTH 1080
+#endif
+
+static const char digits[] = "0123456789abcdef";
+
+static void php_json_escape_string(smart_str *buf, char *s, size_t len, int options);
+
+static int php_json_determine_array_type(zval *val) /* {{{ */
+{
+ 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 php_json_pretty_print_char(smart_str *buf, int options, char c) /* {{{ */
+{
+ if (options & PHP_JSON_PRETTY_PRINT) {
+ smart_str_appendc(buf, c);
+ }
+}
+/* }}} */
+
+static inline void php_json_pretty_print_indent(smart_str *buf, int options) /* {{{ */
+{
+ int i;
+
+ if (options & PHP_JSON_PRETTY_PRINT) {
+ for (i = 0; i < JSON_G(encoder_depth); ++i) {
+ smart_str_appendl(buf, " ", 4);
+ }
+ }
+}
+/* }}} */
+
+/* }}} */
+
++static inline int php_json_is_valid_double(double d) /* {{{ */
++{
++ return !zend_isinf(d) && !zend_isnan(d);
++}
++/* }}} */
++
+static inline void php_json_encode_double(smart_str *buf, double d, int options) /* {{{ */
+{
- } else if (type == IS_DOUBLE) {
++ size_t len;
++ char num[PHP_JSON_DOUBLE_MAX_LENGTH];
++ php_gcvt(d, EG(precision), '.', 'e', &num[0]);
++ len = strlen(num);
++ if (options & PHP_JSON_PRESERVE_ZERO_FRACTION && strchr(num, '.') == NULL && len < PHP_JSON_DOUBLE_MAX_LENGTH - 2) {
++ num[len++] = '.';
++ num[len++] = '0';
++ num[len] = '\0';
+ }
++ smart_str_appendl(buf, num, len);
+}
+/* }}} */
+
+static void php_json_encode_array(smart_str *buf, zval *val, int options) /* {{{ */
+{
+ 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 : php_json_determine_array_type(val);
+ } 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;
+ }
+
+ php_json_pretty_print_char(buf, options, '\n');
+ php_json_pretty_print_indent(buf, options);
+ php_json_encode(buf, data, options);
+ } 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;
+ }
+
+ php_json_pretty_print_char(buf, options, '\n');
+ php_json_pretty_print_indent(buf, options);
+
+ php_json_escape_string(buf, key->val, key->len, options & ~PHP_JSON_NUMERIC_CHECK);
+ smart_str_appendc(buf, ':');
+
+ php_json_pretty_print_char(buf, options, ' ');
+
+ php_json_encode(buf, data, options);
+ } else {
+ if (need_comma) {
+ smart_str_appendc(buf, ',');
+ } else {
+ need_comma = 1;
+ }
+
+ php_json_pretty_print_char(buf, options, '\n');
+ php_json_pretty_print_indent(buf, options);
+
+ smart_str_appendc(buf, '"');
+ smart_str_append_long(buf, (zend_long) index);
+ smart_str_appendc(buf, '"');
+ smart_str_appendc(buf, ':');
+
+ php_json_pretty_print_char(buf, options, ' ');
+
+ php_json_encode(buf, data, options);
+ }
+ }
+
+ 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) {
+ php_json_pretty_print_char(buf, options, '\n');
+ php_json_pretty_print_indent(buf, options);
+ }
+
+ if (r == PHP_JSON_OUTPUT_ARRAY) {
+ smart_str_appendc(buf, ']');
+ } else {
+ smart_str_appendc(buf, '}');
+ }
+}
+/* }}} */
+
+static int php_json_utf8_to_utf16(unsigned short *utf16, char utf8[], size_t 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 php_json_escape_string(smart_str *buf, char *s, size_t len, int options) /* {{{ */
+{
+ int status;
+ unsigned int us, next_us = 0;
+ size_t pos, checkpoint;
+
+ 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);
- return;
++ return;
++ } else if (type == IS_DOUBLE && php_json_is_valid_double(d)) {
+ php_json_encode_double(buf, d, options);
++ return;
+ }
- php_json_encode_double(buf, Z_DVAL_P(val), options);
+ }
+
+ }
+
+ if (options & PHP_JSON_UNESCAPED_UNICODE) {
+ /* validate UTF-8 string first */
+ if (php_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 php_json_encode_serializable_object(smart_str *buf, zval *val, int options) /* {{{ */
+{
+ 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) || Z_TYPE(retval) == IS_UNDEF) {
+ zend_throw_exception_ex(NULL, 0, "Failed calling %s::jsonSerialize()", ce->name->val);
+ 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(retval) == Z_OBJ_P(val))) {
+ /* Handle the case where jsonSerialize does: return $this; by going straight to encode array */
+ php_json_encode_array(buf, &retval, options);
+ } else {
+ /* All other types, encode as normal */
+ php_json_encode(buf, &retval, options);
+ }
+
+ zval_ptr_dtor(&retval);
+ zval_ptr_dtor(&fname);
+}
+/* }}} */
+
+void php_json_encode_zval(smart_str *buf, zval *val, int options) /* {{{ */
+{
+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:
++ if (php_json_is_valid_double(Z_DVAL_P(val))) {
++ php_json_encode_double(buf, Z_DVAL_P(val), options);
++ } else {
++ JSON_G(error_code) = PHP_JSON_ERROR_INF_OR_NAN;
++ smart_str_appendc(buf, '0');
++ }
+ break;
+
+ case IS_STRING:
+ php_json_escape_string(buf, Z_STRVAL_P(val), Z_STRLEN_P(val), options);
+ break;
+
+ case IS_OBJECT:
+ if (instanceof_function(Z_OBJCE_P(val), php_json_serializable_ce)) {
+ php_json_encode_serializable_object(buf, val, options);
+ break;
+ }
+ /* fallthrough -- Non-serializable object */
+ case IS_ARRAY:
+ php_json_encode_array(buf, val, options);
+ 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;
+}
+/* }}} */
+
+/*
+ * 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
+ */
projects / php / commitdiff