mirror of
https://github.com/EFTEC/Services_JSON.git
synced 2026-08-25 05:36:42 +00:00
jorgecc
773 lines
36 KiB
PHP
773 lines
36 KiB
PHP
<?php /** @noinspection UnknownInspectionInspection */
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/**
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* @noinspection TypeUnsafeArraySearchInspection
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* @noinspection PhpComposerExtensionStubsInspection
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* @noinspection TypeUnsafeComparisonInspection
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*/
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namespace eftec\ServicesJson;
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use RuntimeException;
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use stdClass;
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/**
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* Converts to and from JSON format.
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*
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* This package provides a simple encoder and decoder for JSON notation. It
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* is intended for use with client-side Javascript applications that make
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* use of HTTPRequest to perform server communication functions - data can
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* be encoded into JSON notation for use in a client-side javascript, or
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* decoded from incoming Javascript requests. JSON format is native to
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* Javascript, and can be directly eval()'ed with no further parsing
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* overhead
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*
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* All strings should be in ASCII or UTF-8 format!
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*
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* LICENSE: Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met: Redistributions of source code must retain the
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* above copyright notice, this list of conditions and the following
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* disclaimer. Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
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* NO EVENT SHALL CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
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* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*
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* @category
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* @package Services_JSON
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* @author Michal Migurski <mike-json@teczno.com>
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* @author Matt Knapp <mdknapp[at]gmail[dot]com>
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* @author Brett Stimmerman <brettstimmerman[at]gmail[dot]com>
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* @autor Jorge Castro <jcastro@eftec.cl>
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* @copyright 2005 Michal Migurski,2022 Jorge Castro
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* @version 2.0 2022-11-07
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* @license http://www.opensource.org/licenses/bsd-license.php
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* @link https://https://github.com/EFTEC/Services_JSON
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* @link http://pear.php.net/pepr/pepr-proposal-show.php?id=198
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*/
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/**
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* Converts to and from JSON format.
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*
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* Brief example of use:
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*
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* <code>
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*
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* // convert a complexe value to JSON notation, and send it to the browser
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* $value = array('foo', 'bar', array(1, 2, 'baz'), array(3, array(4)));
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* $output = Services_JSON::encode($value);
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*
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* print($output);
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* // prints: ["foo","bar",[1,2,"baz"],[3,[4]]]
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*
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* // accept incoming POST data, assumed to be in JSON notation
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* $input = file_get_contents('php://input', 1000000);
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* $value = Services_JSON::decode($input);
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* </code>
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*/
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class Services_JSON
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{
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protected const SLICE = 1;
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protected const IN_STR = 2;
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protected const IN_ARR = 3;
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protected const IN_OBJ = 4;
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protected const IN_CMT = 5;
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/** @var int the value returned will be an array instead of a stdclass */
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public const GET_ARRAY = 16;
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/** @var int supresses the errors and replaces by a null */
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public const SUPPRESS_ERRORS = 32;
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/** @var int supports to-json */
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public const USE_TO_JSON = 64;
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/** @var int If the fix value is broken, then it adds [] or {} automatically */
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public const DECODE_FIX_ROOT = 128;
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public const DECODE_NO_QUOTE = 256;
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protected static int $use = 0;
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// private - cache the mbstring lookup results..
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protected static bool $_mb_strlen = false;
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protected static bool $_mb_substr = false;
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protected static bool $_mb_convert_encoding = false;
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/**
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* constructs a new JSON instance. We force this library as static
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*
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*/
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protected function __construct()
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{
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}
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protected static function init(?int $use = null): void
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{
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if ($use !== null) {
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self::$use = $use;
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}
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self::$_mb_strlen = function_exists('mb_strlen');
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self::$_mb_convert_encoding = function_exists('mb_convert_encoding');
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self::$_mb_substr = function_exists('mb_substr');
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}
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/**
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* convert a string from one UTF-16 char to one UTF-8 char
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*
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* Normally should be handled by mb_convert_encoding, but
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* provides a slower PHP-only method for installations
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* that lack the multibye string extension.
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*
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* @param string $utf16 UTF-16 character
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* @return string UTF-8 character
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* @access private
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*/
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protected static function utf162utf8(string $utf16): string
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{
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if (self::$_mb_convert_encoding) {
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return mb_convert_encoding($utf16, 'UTF-8', 'UTF-16');
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}
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$bytes = (ord($utf16[0]) << 8) | ord($utf16[1]);
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switch (true) {
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case ((0x7F & $bytes) == $bytes):
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// this case should never be reached, because we are in ASCII range
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// see: https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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return chr(0x7F & $bytes);
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case (0x07FF & $bytes) == $bytes:
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// return a 2-byte UTF-8 character
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// see: https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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return chr(0xC0 | (($bytes >> 6) & 0x1F)) . chr(0x80 | ($bytes & 0x3F));
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case (0xFFFF & $bytes) == $bytes:
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// return a 3-byte UTF-8 character
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// see: https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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return chr(0xE0 | (($bytes >> 12) & 0x0F)) . chr(0x80 | (($bytes >> 6) & 0x3F)) . chr(0x80 | ($bytes & 0x3F));
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}
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// ignoring UTF-32 for now, sorry
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return '';
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}
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/**
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* convert a string from one UTF-8 char to one UTF-16 char
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*
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* Normally should be handled by mb_convert_encoding, but
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* provides a slower PHP-only method for installations
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* that lack the multibye string extension.
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* @param string $utf8 UTF-8 character
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* @return string UTF-16 character
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* @access private
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*/
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public static function utf82utf16(string $utf8): string
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{
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if (self::$_mb_convert_encoding) {
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return mb_convert_encoding($utf8, 'UTF-16', 'UTF-8');
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}
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switch (self::strlen8($utf8)) {
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case 1:
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// this case should never be reached, because we are in ASCII range
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// see: https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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return $utf8;
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case 2:
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// return a UTF-16 character from a 2-byte UTF-8 char
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// see: https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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return chr(0x07 & (ord($utf8[0]) >> 2)) . chr((0xC0 & (ord($utf8[0]) << 6)) | (0x3F & ord($utf8[1])));
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case 3:
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// return a UTF-16 character from a 3-byte UTF-8 char
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// see: https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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return chr((0xF0 & (ord($utf8[0]) << 4)) | (0x0F & (ord($utf8[1]) >> 2))) . chr((0xC0 & (ord($utf8[1]) << 6)) | (0x7F & ord($utf8[2])));
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}
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// ignoring UTF-32 for now, sorry
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return '';
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}
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/**
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* encodes an arbitrary variable into JSON format (and sends JSON Header)
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*
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* @param mixed $var any number, boolean, string, array, or object to be encoded.
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* see argument 1 to Services_JSON() above for array-parsing behavior.
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* if var is a strng, note that encode() always expects it
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* to be in ASCII or UTF-8 format!
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*
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* @return mixed JSON string representation of input var or an error if a problem occurs
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* @access public
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*/
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public static function encode($var, $use = 0)
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{
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//header('Content-type: application/json');
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self::init($use);
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return self::encodeUnsafe($var);
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}
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/**
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* encodes an arbitrary variable into JSON format without JSON Header - warning - may allow XSS!!!!
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*
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* @param mixed $var any number, boolean, string, array, or object to be encoded.
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* see argument 1 to Services_JSON() above for array-parsing behavior.
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* if var is a strng, note that encode() always expects it
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* to be in ASCII or UTF-8 format!
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*
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* @return mixed JSON string representation of input var or an error if a problem occurs
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* @access public
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*/
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public static function encodeUnsafe($var)
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{
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// see bug #16908 - regarding numeric locale printing
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$lc = setlocale(LC_NUMERIC, 0);
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setlocale(LC_NUMERIC, 'C');
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$ret = self::_encode($var);
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setlocale(LC_NUMERIC, $lc);
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return $ret;
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}
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/**
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* PRIVATE CODE that does the work of encodes an arbitrary variable into JSON format
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*
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* @param mixed $var any number, boolean, string, array, or object to be encoded.
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* see argument 1 to Services_JSON() above for array-parsing behavior.
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* if var is a strng, note that encode() always expects it
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* to be in ASCII or UTF-8 format!
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*
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* @return mixed JSON string representation of input var or an error if a problem occurs
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* @access public
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*/
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public static function _encode($var)
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{
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switch (gettype($var)) {
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case 'boolean':
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return $var ? 'true' : 'false';
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case 'NULL':
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return 'null';
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case 'integer':
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return (int)$var;
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case 'double':
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case 'float':
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return (float)$var;
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case 'string':
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// STRINGS ARE EXPECTED TO BE IN ASCII OR UTF-8 FORMAT
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$ascii = '';
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$strlen_var = self::strlen8($var);
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/*
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* Iterate over every character in the string,
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* escaping with a slash or encoding to UTF-8 where necessary
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*/
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for ($c = 0; $c < $strlen_var; ++$c) {
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$ord_var_c = ord($var[$c]);
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switch (true) {
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case $ord_var_c == 0x08:
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$ascii .= '\b';
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break;
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case $ord_var_c == 0x09:
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$ascii .= '\t';
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break;
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case $ord_var_c == 0x0A:
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$ascii .= '\n';
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break;
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case $ord_var_c == 0x0C:
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$ascii .= '\f';
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break;
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case $ord_var_c == 0x0D:
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$ascii .= '\r';
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break;
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case $ord_var_c == 0x22:
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case $ord_var_c == 0x2F:
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case $ord_var_c == 0x5C:
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// double quote, slash, slosh
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$ascii .= '\\' . $var[$c];
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break;
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case (($ord_var_c >= 0x20) && ($ord_var_c <= 0x7F)):
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// characters U-00000000 - U-0000007F (same as ASCII)
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$ascii .= $var[$c];
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break;
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case (($ord_var_c & 0xE0) == 0xC0):
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// characters U-00000080 - U-000007FF, mask 110XXXXX
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// see https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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if ($c + 1 >= $strlen_var) {
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++$c;
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$ascii .= '?';
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break;
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}
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$char = pack('C*', $ord_var_c, ord($var[$c + 1]));
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++$c;
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$utf16 = self::utf82utf16($char);
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$ascii .= sprintf('\u%04s', bin2hex($utf16));
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break;
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case (($ord_var_c & 0xF0) == 0xE0):
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if ($c + 2 >= $strlen_var) {
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$c += 2;
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$ascii .= '?';
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break;
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}
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// characters U-00000800 - U-0000FFFF, mask 1110XXXX
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// see https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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$char = pack('C*', $ord_var_c, @ord($var[$c + 1]), @ord($var[$c + 2]));
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$c += 2;
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$utf16 = self::utf82utf16($char);
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$ascii .= sprintf('\u%04s', bin2hex($utf16));
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break;
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case (($ord_var_c & 0xF8) == 0xF0):
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if ($c + 3 >= $strlen_var) {
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$c += 3;
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$ascii .= '?';
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break;
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}
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// characters U-00010000 - U-001FFFFF, mask 11110XXX
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// see https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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$char = pack('C*', $ord_var_c, ord($var[$c + 1]), ord($var[$c + 2]), ord($var[$c + 3]));
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$c += 3;
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$utf16 = self::utf82utf16($char);
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$ascii .= sprintf('\u%04s', bin2hex($utf16));
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break;
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case (($ord_var_c & 0xFC) == 0xF8):
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// characters U-00200000 - U-03FFFFFF, mask 111110XX
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// see https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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if ($c + 4 >= $strlen_var) {
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$c += 4;
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$ascii .= '?';
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break;
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}
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$char = pack('C*', $ord_var_c, ord($var[$c + 1]), ord($var[$c + 2]), ord($var[$c + 3]), ord($var[$c + 4]));
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$c += 4;
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$utf16 = self::utf82utf16($char);
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$ascii .= sprintf('\u%04s', bin2hex($utf16));
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break;
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case (($ord_var_c & 0xFE) == 0xFC):
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if ($c + 5 >= $strlen_var) {
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$c += 5;
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$ascii .= '?';
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break;
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}
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// characters U-04000000 - U-7FFFFFFF, mask 1111110X
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// see https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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$char = pack('C*', $ord_var_c, ord($var[$c + 1]), ord($var[$c + 2]), ord($var[$c + 3]), ord($var[$c + 4]), ord($var[$c + 5]));
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$c += 5;
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$utf16 = self::utf82utf16($char);
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$ascii .= sprintf('\u%04s', bin2hex($utf16));
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break;
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}
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}
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return '"' . $ascii . '"';
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case 'array':
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/*
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* As per JSON spec if any array key is not an integer
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* we must treat then the whole array as an object. We
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* also try to catch a sparsely populated associative
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* array with numeric keys here because some JS engines
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* will create an array with empty indexes up to
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* max_index which can cause memory issues and because
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* the keys, which may be relevant, will be remapped
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* otherwise.
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*
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* As per the ECMA and JSON specification an object may
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* have any string as a property. Unfortunately due to
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* a hole in the ECMA specification if the key is a
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* ECMA reserved word or starts with a digit the
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* parameter is only accessible using ECMAScript's
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* bracket notation.
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*/ // treat as a JSON object
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if (is_array($var) && count($var) && (array_keys($var) !== range(0, count($var) - 1))) {
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$properties = array_map([self::class, 'name_value'], array_keys($var), array_values($var));
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foreach ($properties as $property) {
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if (self::isError($property)) {
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return $property;
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}
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}
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return '{' . implode(',', $properties) . '}';
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}
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// treat it like a regular array
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$elements = array_map([self::class, '_encode'], $var);
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foreach ($elements as $element) {
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if (self::isError($element)) {
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return $element;
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}
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}
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return '[' . implode(',', $elements) . ']';
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case 'object':
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// support toJSON methods.
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if ((self::$use & self::USE_TO_JSON) && method_exists($var, 'toJSON')) {
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// this may end up allowing unlimited recursion, so we check the return value to make sure it's
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// not got the same method.
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$recode = $var->toJSON();
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if (method_exists($recode, 'toJSON')) {
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if ((self::$use & self::SUPPRESS_ERRORS)) {
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return 'null';
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}
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self::Services_JSON_Error(get_class($var) . " toJSON returned an object with a toJSON method.");
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}
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return self::_encode($recode);
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}
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$vars = get_object_vars($var);
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$properties = array_map([self::class, 'name_value'], array_keys($vars), array_values($vars));
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foreach ($properties as $property) {
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if (self::isError($property)) {
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return $property;
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}
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}
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return '{' . implode(',', $properties) . '}';
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default:
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if ((self::$use & self::SUPPRESS_ERRORS)) {
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return 'null';
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}
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self::Services_JSON_Error(gettype($var) . " can not be encoded as JSON string");
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}
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}
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/**
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* array-walking function for use in generating JSON-formatted name-value pairs
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*
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* @param string $name name of key to use
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* @param mixed $value reference to an array element to be encoded
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*
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* @return string JSON-formatted name-value pair, like '"name":value'
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* @access private
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*/
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protected static function name_value(string $name, $value)
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{
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$encoded_value = self::_encode($value);
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if (self::isError($encoded_value)) {
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return $encoded_value;
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}
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return self::_encode($name) . ':' . $encoded_value;
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}
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/**
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* reduce a string by removing leading and trailing comments and whitespace
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*
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* @param $str string string value to strip of comments and whitespace
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*
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* @return string string value stripped of comments and whitespace
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* @access private
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*/
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protected static function reduce_string(string $str): string
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{
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$str = preg_replace([// eliminate single line comments in '// ...' form
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'#^\s*//(.+)$#m', // eliminate multi-line comments in '/* ... */' form, at start of string
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'#^\s*/\*(.+)\*/#Us', // eliminate multi-line comments in '/* ... */' form, at end of string
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'#/\*(.+)\*/\s*$#Us'], '', $str);
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// eliminate extraneous space
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return trim($str);
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}
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/**
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* decodes a JSON string into appropriate variable
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*
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* @param string $str JSON-formatted string
|
|
* @param int $use object behavior flags; combine with boolean-OR possible values:<br>
|
|
* - <b>self::GET_ARRAY</b>: syntax creates associative arrays<br>
|
|
* instead of objects in decode().<br>
|
|
* - <b>self::SUPPRESS_ERRORS</b>: error suppression.<br>
|
|
* Values which can't be encoded (e.g. resources)<br>
|
|
* appear as NULL instead of throwing errors.<br>
|
|
* By default, a deeply-nested resource will<br>
|
|
* bubble up with an error, so all return values<br>
|
|
* from encode() should be checked with isError()<br>
|
|
* - <b>self::USE_TO_JSON</b>: call toJSON when serializing objects<br>
|
|
* It serializes the return value from the toJSON call rather<br>
|
|
* than the object it'self, toJSON can return associative arrays,<br>
|
|
* strings or numbers, if you return an object, make sure it does<br>
|
|
* not have a toJSON method, otherwise an error will occur.<br>
|
|
* -<b>self::DECODE_FIX_ROOT</b>: Fix the code if the root parenthesis are
|
|
* missing<br> Example: "1,2,3" works as "[1,2,3]" and "a:1,b:2" works as "{a:1,b:2}"
|
|
*
|
|
* @return array|bool|float|int|stdClass|string|null number, boolean, string, array, or object<br>
|
|
* corresponding to given JSON input string.<br>
|
|
* See argument 1 to Services_JSON() above for object-output behavior.<br>
|
|
* Note that decode() always returns strings<br>
|
|
* in ASCII or UTF-8 format!<br>
|
|
* @access public
|
|
*/
|
|
public static function decode(string $str, int $use = 0)
|
|
{
|
|
if ($use & self::DECODE_FIX_ROOT) {
|
|
$str = trim($str);
|
|
if($str==="") {
|
|
throw new RuntimeException("no value to decode");
|
|
}
|
|
$firstChar = $str[0];
|
|
if ($firstChar !== '{' && $firstChar !== '[') {
|
|
// fixing a malformed json-u, if the json-u doesn't start with { [ and ends with ] } then it wraps it
|
|
// note:: it will fail for a simple value su as "hello", so it will return ["hello"]
|
|
$p0 = strpos($str, ':'); // content:2,content2:3 => {content:2,content2:3}
|
|
$p0 = $p0 === false ? PHP_INT_MAX : $p0;
|
|
$p1 = strpos($str, ','); // 2,a:3 => [2,a:3]
|
|
$p1 = $p1 === false ? PHP_INT_MAX : $p1;
|
|
if ($p0 < $p1) {
|
|
$str = '{' . $str . '}';
|
|
} else {
|
|
$str = '[' . $str . ']';
|
|
}
|
|
}
|
|
}
|
|
self::init($use);
|
|
return self::decode2($str);
|
|
}
|
|
|
|
/**
|
|
* It is used internally.
|
|
* @param $str
|
|
* @return array|bool|float|int|stdClass|string|null
|
|
*
|
|
* @noinspection PhpUndefinedVariableInspection
|
|
*/
|
|
protected static function decode2($str)
|
|
{
|
|
$str = self::reduce_string($str);
|
|
switch (strtolower($str)) {
|
|
case 'true':
|
|
return true;
|
|
case 'false':
|
|
return false;
|
|
case 'null':
|
|
return null;
|
|
default:
|
|
$m = [];
|
|
if (is_numeric($str)) {
|
|
// Lookie-loo, it's a number
|
|
// This would work on its own, but I'm trying to be
|
|
// good about returning integers where appropriate:
|
|
// return (float)$str;
|
|
// Return float or int, as appropriate
|
|
return ((float)$str == (integer)$str) ? (integer)$str : (float)$str;
|
|
}
|
|
if (preg_match('/^(["\']).*(\1)$/s', $str, $m) && $m[1] == $m[2]) {
|
|
// STRINGS RETURNED IN UTF-8 FORMAT
|
|
$delim = self::substr8($str, 0, 1);
|
|
$chrs = self::substr8($str, 1, -1);
|
|
$utf8 = '';
|
|
$strlen_chrs = self::strlen8($chrs);
|
|
for ($c = 0; $c < $strlen_chrs; ++$c) {
|
|
$substr_chrs_c_2 = self::substr8($chrs, $c, 2);
|
|
$ord_chrs_c = ord($chrs[$c]);
|
|
switch (true) {
|
|
case $substr_chrs_c_2 === '\b':
|
|
$utf8 .= chr(0x08);
|
|
++$c;
|
|
break;
|
|
case $substr_chrs_c_2 === '\t':
|
|
$utf8 .= chr(0x09);
|
|
++$c;
|
|
break;
|
|
case $substr_chrs_c_2 === '\n':
|
|
$utf8 .= chr(0x0A);
|
|
++$c;
|
|
break;
|
|
case $substr_chrs_c_2 === '\f':
|
|
$utf8 .= chr(0x0C);
|
|
++$c;
|
|
break;
|
|
case $substr_chrs_c_2 === '\r':
|
|
$utf8 .= chr(0x0D);
|
|
++$c;
|
|
break;
|
|
case $substr_chrs_c_2 === '\\"':
|
|
case $substr_chrs_c_2 === '\\\'':
|
|
case $substr_chrs_c_2 === '\\\\':
|
|
case $substr_chrs_c_2 === '\\/':
|
|
if (($delim === '"' && $substr_chrs_c_2 !== '\\\'') || ($delim === "'" && $substr_chrs_c_2 !== '\\"')) {
|
|
$utf8 .= $chrs[++$c];
|
|
}
|
|
break;
|
|
case preg_match('/\\\u[0-9A-F]{4}/i', self::substr8($chrs, $c, 6)):
|
|
// single, escaped unicode character
|
|
$utf16 = chr(hexdec(self::substr8($chrs, ($c + 2), 2))) . chr(hexdec(self::substr8($chrs, ($c + 4), 2)));
|
|
$utf8 .= self::utf162utf8($utf16);
|
|
$c += 5;
|
|
break;
|
|
case ($ord_chrs_c >= 0x20) && ($ord_chrs_c <= 0x7F):
|
|
$utf8 .= $chrs[$c];
|
|
break;
|
|
case ($ord_chrs_c & 0xE0) == 0xC0:
|
|
// characters U-00000080 - U-000007FF, mask 110XXXXX
|
|
//see https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
|
|
$utf8 .= self::substr8($chrs, $c, 2);
|
|
++$c;
|
|
break;
|
|
case ($ord_chrs_c & 0xF0) == 0xE0:
|
|
// characters U-00000800 - U-0000FFFF, mask 1110XXXX
|
|
// see https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
|
|
$utf8 .= self::substr8($chrs, $c, 3);
|
|
$c += 2;
|
|
break;
|
|
case ($ord_chrs_c & 0xF8) == 0xF0:
|
|
// characters U-00010000 - U-001FFFFF, mask 11110XXX
|
|
// see https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
|
|
$utf8 .= self::substr8($chrs, $c, 4);
|
|
$c += 3;
|
|
break;
|
|
case ($ord_chrs_c & 0xFC) == 0xF8:
|
|
// characters U-00200000 - U-03FFFFFF, mask 111110XX
|
|
// see https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
|
|
$utf8 .= self::substr8($chrs, $c, 5);
|
|
$c += 4;
|
|
break;
|
|
case ($ord_chrs_c & 0xFE) == 0xFC:
|
|
// characters U-04000000 - U-7FFFFFFF, mask 1111110X
|
|
// see https://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
|
|
$utf8 .= self::substr8($chrs, $c, 6);
|
|
$c += 5;
|
|
break;
|
|
}
|
|
}
|
|
return $utf8;
|
|
}
|
|
if (preg_match('/^\[.*]$/s', $str) || preg_match('/^\{.*}$/s', $str)) {
|
|
// array, or object notation
|
|
if ($str[0] === '[') {
|
|
$stk = [self::IN_ARR];
|
|
$arr = [];
|
|
} else {
|
|
$stk = [self::IN_OBJ];
|
|
if (self::$use & self::GET_ARRAY) {
|
|
$obj = [];
|
|
} else {
|
|
$obj = new stdClass();
|
|
}
|
|
}
|
|
$stk[] = ['what' => self::SLICE, 'where' => 0, 'delim' => false];
|
|
$chrs = self::substr8($str, 1, -1);
|
|
$chrs = self::reduce_string($chrs);
|
|
if ($chrs == '') {
|
|
if (reset($stk) == self::IN_ARR) {
|
|
return $arr;
|
|
}
|
|
return $obj;
|
|
}
|
|
$strlen_chrs = self::strlen8($chrs);
|
|
for ($c = 0; $c <= $strlen_chrs; ++$c) {
|
|
$top = end($stk);
|
|
$substr_chrs_c_2 = self::substr8($chrs, $c, 2);
|
|
if (($c == $strlen_chrs) || (($chrs[$c] === ',') && ($top['what'] == self::SLICE))) {
|
|
// found a comma that is not inside a string, array, etc.,
|
|
// OR we've reached the end of the character list
|
|
$slice = self::substr8($chrs, $top['where'], ($c - $top['where']));
|
|
$stk[] = ['what' => self::SLICE, 'where' => ($c + 1), 'delim' => false];
|
|
if (reset($stk) == self::IN_ARR) {
|
|
// we are in an array, so just push an element onto the stack
|
|
$arr[] = self::decode2($slice);
|
|
} elseif (reset($stk) == self::IN_OBJ) {
|
|
// we are in an object, so figure out the property name and set an
|
|
// element in an associative array,for now
|
|
$parts = [];
|
|
/** @noinspection NotOptimalRegularExpressionsInspection */
|
|
if (preg_match('/^\s*(["\'].*[^\\\]["\'])\s*:/Uis', $slice, $parts)) {
|
|
// "name":value pair
|
|
$key = self::decode2($parts[1]);
|
|
$val = self::decode2(trim(substr($slice, strlen($parts[0])), ", \t\n\r\0\x0B"));
|
|
if (self::$use & self::GET_ARRAY) {
|
|
$obj[$key] = $val;
|
|
} else {
|
|
$obj->$key = $val;
|
|
}
|
|
} /** @noinspection NotOptimalRegularExpressionsInspection */ elseif (preg_match('/^\s*(\w+)\s*:/Ui', $slice, $parts)) {
|
|
// name:value pair, where name is unquoted
|
|
$key = $parts[1];
|
|
$val = self::decode2(trim(substr($slice, strlen($parts[0])), ", \t\n\r\0\x0B"));
|
|
if (self::$use & self::GET_ARRAY) {
|
|
$obj[$key] = $val;
|
|
} else {
|
|
$obj->$key = $val;
|
|
}
|
|
}
|
|
}
|
|
} elseif ((($chrs[$c] === '"') || ($chrs[$c] === "'")) && ($top['what'] != self::IN_STR)) {
|
|
// found a quote, and we are not inside a string
|
|
$stk[] = ['what' => self::IN_STR, 'where' => $c, 'delim' => $chrs[$c]];
|
|
} elseif (($chrs[$c] == $top['delim']) && ($top['what'] == self::IN_STR) && ((self::strlen8(self::substr8($chrs, 0, $c)) - self::strlen8(rtrim(self::substr8($chrs, 0, $c), '\\'))) % 2 != 1)) {
|
|
// found a quote, we're in a string, and it's not escaped
|
|
// we know that it's not escaped becase there is _not_ an
|
|
// odd number of backslashes at the end of the string so far
|
|
array_pop($stk);
|
|
} elseif (($chrs[$c] === '[') && in_array($top['what'], [self::SLICE, self::IN_ARR, self::IN_OBJ])) {
|
|
// found a left-bracket, and we are in an array, object, or slice
|
|
$stk[] = ['what' => self::IN_ARR, 'where' => $c, 'delim' => false];
|
|
} elseif (($chrs[$c] === ']') && ($top['what'] == self::IN_ARR)) {
|
|
// found a right-bracket, and we're in an array
|
|
array_pop($stk);
|
|
} elseif (($chrs[$c] === '{') && in_array($top['what'], [self::SLICE, self::IN_ARR, self::IN_OBJ])) {
|
|
// found a left-brace, and we are in an array, object, or slice
|
|
$stk[] = ['what' => self::IN_OBJ, 'where' => $c, 'delim' => false];
|
|
} elseif (($chrs[$c] === '}') && ($top['what'] == self::IN_OBJ)) {
|
|
// found a right-brace, and we're in an object
|
|
array_pop($stk);
|
|
} elseif (($substr_chrs_c_2 === '/*') && in_array($top['what'], [self::SLICE, self::IN_ARR, self::IN_OBJ])) {
|
|
// found a comment start, and we are in an array, object, or slice
|
|
$stk[] = ['what' => self::IN_CMT, 'where' => $c, 'delim' => false];
|
|
$c++;
|
|
} elseif (($substr_chrs_c_2 === '*/') && ($top['what'] == self::IN_CMT)) {
|
|
// found a comment end, and we're in one now
|
|
array_pop($stk);
|
|
$c++;
|
|
for ($i = $top['where']; $i <= $c; ++$i) {
|
|
$chrs = substr_replace($chrs, ' ', $i, 1);
|
|
}
|
|
}
|
|
}
|
|
if (reset($stk) == self::IN_ARR) {
|
|
return $arr;
|
|
}
|
|
if (reset($stk) == self::IN_OBJ) {
|
|
return $obj;
|
|
}
|
|
}
|
|
if(self::$use & self::DECODE_NO_QUOTE) {
|
|
return $str;
|
|
}
|
|
}
|
|
return null;
|
|
}
|
|
|
|
protected static function isError($data, $code = null): bool
|
|
{
|
|
if (class_exists('pear')) {
|
|
/** @noinspection PhpUndefinedClassInspection */
|
|
return PEAR::isError($data, $code);
|
|
}
|
|
if (is_object($data) && (get_class($data) === 'services_json_error' || is_subclass_of($data, 'services_json_error'))) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* Calculates length of string in bytes
|
|
* @param string $str
|
|
* @return integer length
|
|
*/
|
|
protected static function strlen8(string $str): int
|
|
{
|
|
if (self::$_mb_strlen) {
|
|
return mb_strlen($str, "8bit");
|
|
}
|
|
return strlen($str);
|
|
}
|
|
|
|
/**
|
|
* Returns part of a string, interpreting $start and $length as number of bytes.
|
|
* @param string $string
|
|
* @param integer $start start
|
|
* @param integer|bool $length length
|
|
* @return string length
|
|
*/
|
|
protected static function substr8(string $string, int $start, $length = false): string
|
|
{
|
|
if ($length === false) {
|
|
$length = self::strlen8($string) - $start;
|
|
}
|
|
if (self::$_mb_substr) {
|
|
return mb_substr($string, $start, $length, "8bit");
|
|
}
|
|
return substr($string, $start, $length);
|
|
}
|
|
|
|
protected static function Services_JSON_Error($msg): void
|
|
{
|
|
throw new RuntimeException($msg);
|
|
}
|
|
|
|
}
|