| author | ymh <ymh.work@gmail.com> |
| Tue, 15 Oct 2019 15:48:13 +0200 | |
| changeset 13 | d255fe9cd479 |
| parent 9 | 177826044cd9 |
| child 16 | a86126ab1dd4 |
| permissions | -rw-r--r-- |
| 0 | 1 |
<?php |
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if ( ! class_exists( 'Services_JSON' ) ) : |
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/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */ |
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/** |
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* Converts to and from JSON format. |
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* |
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* JSON (JavaScript Object Notation) is a lightweight data-interchange |
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* format. It is easy for humans to read and write. It is easy for machines |
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* to parse and generate. It is based on a subset of the JavaScript |
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* Programming Language, Standard ECMA-262 3rd Edition - December 1999. |
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* This feature can also be found in Python. JSON is a text format that is |
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* completely language independent but uses conventions that are familiar |
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* to programmers of the C-family of languages, including C, C++, C#, Java, |
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* JavaScript, Perl, TCL, and many others. These properties make JSON an |
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* ideal data-interchange language. |
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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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* @copyright 2005 Michal Migurski |
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* @version CVS: $Id: JSON.php 305040 2010-11-02 23:19:03Z alan_k $ |
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* @license http://www.opensource.org/licenses/bsd-license.php |
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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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/** |
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* Marker constant for Services_JSON::decode(), used to flag stack state |
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*/ |
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define('SERVICES_JSON_SLICE', 1); |
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||
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/** |
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* Marker constant for Services_JSON::decode(), used to flag stack state |
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*/ |
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define('SERVICES_JSON_IN_STR', 2); |
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/** |
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* Marker constant for Services_JSON::decode(), used to flag stack state |
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*/ |
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define('SERVICES_JSON_IN_ARR', 3); |
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/** |
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* Marker constant for Services_JSON::decode(), used to flag stack state |
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*/ |
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define('SERVICES_JSON_IN_OBJ', 4); |
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/** |
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* Marker constant for Services_JSON::decode(), used to flag stack state |
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*/ |
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define('SERVICES_JSON_IN_CMT', 5); |
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/** |
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* Behavior switch for Services_JSON::decode() |
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*/ |
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define('SERVICES_JSON_LOOSE_TYPE', 16); |
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/** |
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* Behavior switch for Services_JSON::decode() |
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*/ |
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define('SERVICES_JSON_SUPPRESS_ERRORS', 32); |
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/** |
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* Behavior switch for Services_JSON::decode() |
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*/ |
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define('SERVICES_JSON_USE_TO_JSON', 64); |
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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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* // create a new instance of Services_JSON |
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* $json = new Services_JSON(); |
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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 = $json->encode($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 = $json->decode($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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/** |
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* constructs a new JSON instance |
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* |
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* @param int $use object behavior flags; combine with boolean-OR |
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* |
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* possible values: |
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* - SERVICES_JSON_LOOSE_TYPE: loose typing. |
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* "{...}" syntax creates associative arrays |
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* instead of objects in decode(). |
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* - SERVICES_JSON_SUPPRESS_ERRORS: error suppression. |
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* Values which can't be encoded (e.g. resources) |
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* appear as NULL instead of throwing errors. |
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* By default, a deeply-nested resource will |
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* bubble up with an error, so all return values |
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* from encode() should be checked with isError() |
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* - SERVICES_JSON_USE_TO_JSON: call toJSON when serializing objects |
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* It serializes the return value from the toJSON call rather |
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* than the object itself, toJSON can return associative arrays, |
| 0 | 140 |
* strings or numbers, if you return an object, make sure it does |
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* not have a toJSON method, otherwise an error will occur. |
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*/ |
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cf61fcea0001
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parents:
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function __construct( $use = 0 ) |
| 0 | 144 |
{ |
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$this->use = $use; |
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$this->_mb_strlen = function_exists('mb_strlen'); |
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$this->_mb_convert_encoding = function_exists('mb_convert_encoding'); |
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$this->_mb_substr = function_exists('mb_substr'); |
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} |
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ymh <ymh.work@gmail.com>
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ymh <ymh.work@gmail.com>
parents:
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/** |
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* PHP4 constructor. |
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ymh <ymh.work@gmail.com>
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*/ |
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ymh <ymh.work@gmail.com>
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public function Services_JSON( $use = 0 ) { |
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self::__construct( $use ); |
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} |
| 0 | 157 |
// private - cache the mbstring lookup results.. |
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var $_mb_strlen = false; |
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var $_mb_substr = false; |
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var $_mb_convert_encoding = false; |
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161 |
||
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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 $utf16 UTF-16 character |
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* @return string UTF-8 character |
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* @access private |
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*/ |
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function utf162utf8($utf16) |
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{ |
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// oh please oh please oh please oh please oh please |
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if($this->_mb_convert_encoding) { |
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return mb_convert_encoding($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: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
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return chr(0x7F & $bytes); |
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||
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case (0x07FF & $bytes) == $bytes: |
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// return a 2-byte UTF-8 character |
|
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// see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
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return chr(0xC0 | (($bytes >> 6) & 0x1F)) |
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. chr(0x80 | ($bytes & 0x3F)); |
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case (0xFFFF & $bytes) == $bytes: |
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// return a 3-byte UTF-8 character |
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// see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
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return chr(0xE0 | (($bytes >> 12) & 0x0F)) |
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. chr(0x80 | (($bytes >> 6) & 0x3F)) |
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. chr(0x80 | ($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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/** |
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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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209 |
* Normally should be handled by mb_convert_encoding, but |
|
210 |
* provides a slower PHP-only method for installations |
|
211 |
* that lack the multibye string extension. |
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* |
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* @param string $utf8 UTF-8 character |
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* @return string UTF-16 character |
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* @access private |
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*/ |
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function utf82utf16($utf8) |
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{ |
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// oh please oh please oh please oh please oh please |
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if($this->_mb_convert_encoding) { |
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return mb_convert_encoding($utf8, 'UTF-16', 'UTF-8'); |
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} |
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switch($this->strlen8($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: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
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return $utf8; |
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||
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case 2: |
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// return a UTF-16 character from a 2-byte UTF-8 char |
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// see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
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return chr(0x07 & (ord($utf8{0}) >> 2)) |
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. chr((0xC0 & (ord($utf8{0}) << 6)) |
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| (0x3F & ord($utf8{1}))); |
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||
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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: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
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return chr((0xF0 & (ord($utf8{0}) << 4)) |
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| (0x0F & (ord($utf8{1}) >> 2))) |
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. chr((0xC0 & (ord($utf8{1}) << 6)) |
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| (0x7F & ord($utf8{2}))); |
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} |
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245 |
||
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// ignoring UTF-32 for now, sorry |
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return ''; |
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} |
|
249 |
||
250 |
/** |
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* encodes an arbitrary variable into JSON format (and sends JSON Header) |
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* |
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253 |
* @param mixed $var any number, boolean, string, array, or object to be encoded. |
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* see argument 1 to Services_JSON() above for array-parsing behavior. |
|
| 9 | 255 |
* if var is a string, note that encode() always expects it |
| 0 | 256 |
* to be in ASCII or UTF-8 format! |
257 |
* |
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* @return mixed JSON string representation of input var or an error if a problem occurs |
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* @access public |
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*/ |
|
261 |
function encode($var) |
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262 |
{ |
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263 |
header('Content-type: application/json'); |
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return $this->encodeUnsafe($var); |
|
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} |
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/** |
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267 |
* encodes an arbitrary variable into JSON format without JSON Header - warning - may allow XSS!!!!) |
|
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* |
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* @param mixed $var any number, boolean, string, array, or object to be encoded. |
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* see argument 1 to Services_JSON() above for array-parsing behavior. |
|
| 9 | 271 |
* if var is a string, note that encode() always expects it |
| 0 | 272 |
* to be in ASCII or UTF-8 format! |
273 |
* |
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274 |
* @return mixed JSON string representation of input var or an error if a problem occurs |
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* @access public |
|
276 |
*/ |
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277 |
function encodeUnsafe($var) |
|
278 |
{ |
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// see bug #16908 - regarding numeric locale printing |
|
280 |
$lc = setlocale(LC_NUMERIC, 0); |
|
281 |
setlocale(LC_NUMERIC, 'C'); |
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282 |
$ret = $this->_encode($var); |
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setlocale(LC_NUMERIC, $lc); |
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284 |
return $ret; |
|
285 |
||
286 |
} |
|
287 |
/** |
|
288 |
* PRIVATE CODE that does the work of encodes an arbitrary variable into JSON format |
|
289 |
* |
|
290 |
* @param mixed $var any number, boolean, string, array, or object to be encoded. |
|
291 |
* see argument 1 to Services_JSON() above for array-parsing behavior. |
|
| 9 | 292 |
* if var is a string, note that encode() always expects it |
| 0 | 293 |
* to be in ASCII or UTF-8 format! |
294 |
* |
|
295 |
* @return mixed JSON string representation of input var or an error if a problem occurs |
|
296 |
* @access public |
|
297 |
*/ |
|
298 |
function _encode($var) |
|
299 |
{ |
|
300 |
||
301 |
switch (gettype($var)) { |
|
302 |
case 'boolean': |
|
303 |
return $var ? 'true' : 'false'; |
|
304 |
||
305 |
case 'NULL': |
|
306 |
return 'null'; |
|
307 |
||
308 |
case 'integer': |
|
309 |
return (int) $var; |
|
310 |
||
311 |
case 'double': |
|
312 |
case 'float': |
|
313 |
return (float) $var; |
|
314 |
||
315 |
case 'string': |
|
316 |
// STRINGS ARE EXPECTED TO BE IN ASCII OR UTF-8 FORMAT |
|
317 |
$ascii = ''; |
|
318 |
$strlen_var = $this->strlen8($var); |
|
319 |
||
320 |
/* |
|
321 |
* Iterate over every character in the string, |
|
322 |
* escaping with a slash or encoding to UTF-8 where necessary |
|
323 |
*/ |
|
324 |
for ($c = 0; $c < $strlen_var; ++$c) { |
|
325 |
||
326 |
$ord_var_c = ord($var{$c}); |
|
327 |
||
328 |
switch (true) { |
|
329 |
case $ord_var_c == 0x08: |
|
330 |
$ascii .= '\b'; |
|
331 |
break; |
|
332 |
case $ord_var_c == 0x09: |
|
333 |
$ascii .= '\t'; |
|
334 |
break; |
|
335 |
case $ord_var_c == 0x0A: |
|
336 |
$ascii .= '\n'; |
|
337 |
break; |
|
338 |
case $ord_var_c == 0x0C: |
|
339 |
$ascii .= '\f'; |
|
340 |
break; |
|
341 |
case $ord_var_c == 0x0D: |
|
342 |
$ascii .= '\r'; |
|
343 |
break; |
|
344 |
||
345 |
case $ord_var_c == 0x22: |
|
346 |
case $ord_var_c == 0x2F: |
|
347 |
case $ord_var_c == 0x5C: |
|
348 |
// double quote, slash, slosh |
|
349 |
$ascii .= '\\'.$var{$c}; |
|
350 |
break; |
|
351 |
||
352 |
case (($ord_var_c >= 0x20) && ($ord_var_c <= 0x7F)): |
|
353 |
// characters U-00000000 - U-0000007F (same as ASCII) |
|
354 |
$ascii .= $var{$c}; |
|
355 |
break; |
|
356 |
||
357 |
case (($ord_var_c & 0xE0) == 0xC0): |
|
358 |
// characters U-00000080 - U-000007FF, mask 110XXXXX |
|
359 |
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
|
360 |
if ($c+1 >= $strlen_var) { |
|
361 |
$c += 1; |
|
362 |
$ascii .= '?'; |
|
363 |
break; |
|
364 |
} |
|
365 |
||
366 |
$char = pack('C*', $ord_var_c, ord($var{$c + 1})); |
|
367 |
$c += 1; |
|
368 |
$utf16 = $this->utf82utf16($char); |
|
369 |
$ascii .= sprintf('\u%04s', bin2hex($utf16)); |
|
370 |
break; |
|
371 |
||
372 |
case (($ord_var_c & 0xF0) == 0xE0): |
|
373 |
if ($c+2 >= $strlen_var) { |
|
374 |
$c += 2; |
|
375 |
$ascii .= '?'; |
|
376 |
break; |
|
377 |
} |
|
378 |
// characters U-00000800 - U-0000FFFF, mask 1110XXXX |
|
379 |
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
|
380 |
$char = pack('C*', $ord_var_c, |
|
381 |
@ord($var{$c + 1}), |
|
382 |
@ord($var{$c + 2})); |
|
383 |
$c += 2; |
|
384 |
$utf16 = $this->utf82utf16($char); |
|
385 |
$ascii .= sprintf('\u%04s', bin2hex($utf16)); |
|
386 |
break; |
|
387 |
||
388 |
case (($ord_var_c & 0xF8) == 0xF0): |
|
389 |
if ($c+3 >= $strlen_var) { |
|
390 |
$c += 3; |
|
391 |
$ascii .= '?'; |
|
392 |
break; |
|
393 |
} |
|
394 |
// characters U-00010000 - U-001FFFFF, mask 11110XXX |
|
395 |
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
|
396 |
$char = pack('C*', $ord_var_c, |
|
397 |
ord($var{$c + 1}), |
|
398 |
ord($var{$c + 2}), |
|
399 |
ord($var{$c + 3})); |
|
400 |
$c += 3; |
|
401 |
$utf16 = $this->utf82utf16($char); |
|
402 |
$ascii .= sprintf('\u%04s', bin2hex($utf16)); |
|
403 |
break; |
|
404 |
||
405 |
case (($ord_var_c & 0xFC) == 0xF8): |
|
406 |
// characters U-00200000 - U-03FFFFFF, mask 111110XX |
|
407 |
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
|
408 |
if ($c+4 >= $strlen_var) { |
|
409 |
$c += 4; |
|
410 |
$ascii .= '?'; |
|
411 |
break; |
|
412 |
} |
|
413 |
$char = pack('C*', $ord_var_c, |
|
414 |
ord($var{$c + 1}), |
|
415 |
ord($var{$c + 2}), |
|
416 |
ord($var{$c + 3}), |
|
417 |
ord($var{$c + 4})); |
|
418 |
$c += 4; |
|
419 |
$utf16 = $this->utf82utf16($char); |
|
420 |
$ascii .= sprintf('\u%04s', bin2hex($utf16)); |
|
421 |
break; |
|
422 |
||
423 |
case (($ord_var_c & 0xFE) == 0xFC): |
|
424 |
if ($c+5 >= $strlen_var) { |
|
425 |
$c += 5; |
|
426 |
$ascii .= '?'; |
|
427 |
break; |
|
428 |
} |
|
429 |
// characters U-04000000 - U-7FFFFFFF, mask 1111110X |
|
430 |
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
|
431 |
$char = pack('C*', $ord_var_c, |
|
432 |
ord($var{$c + 1}), |
|
433 |
ord($var{$c + 2}), |
|
434 |
ord($var{$c + 3}), |
|
435 |
ord($var{$c + 4}), |
|
436 |
ord($var{$c + 5})); |
|
437 |
$c += 5; |
|
438 |
$utf16 = $this->utf82utf16($char); |
|
439 |
$ascii .= sprintf('\u%04s', bin2hex($utf16)); |
|
440 |
break; |
|
441 |
} |
|
442 |
} |
|
443 |
return '"'.$ascii.'"'; |
|
444 |
||
445 |
case 'array': |
|
446 |
/* |
|
447 |
* As per JSON spec if any array key is not an integer |
|
|
7
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
0
diff
changeset
|
448 |
* we must treat the whole array as an object. We |
| 0 | 449 |
* also try to catch a sparsely populated associative |
450 |
* array with numeric keys here because some JS engines |
|
451 |
* will create an array with empty indexes up to |
|
452 |
* max_index which can cause memory issues and because |
|
453 |
* the keys, which may be relevant, will be remapped |
|
454 |
* otherwise. |
|
455 |
* |
|
456 |
* As per the ECMA and JSON specification an object may |
|
457 |
* have any string as a property. Unfortunately due to |
|
458 |
* a hole in the ECMA specification if the key is a |
|
459 |
* ECMA reserved word or starts with a digit the |
|
460 |
* parameter is only accessible using ECMAScript's |
|
461 |
* bracket notation. |
|
462 |
*/ |
|
463 |
||
464 |
// treat as a JSON object |
|
465 |
if (is_array($var) && count($var) && (array_keys($var) !== range(0, sizeof($var) - 1))) { |
|
466 |
$properties = array_map(array($this, 'name_value'), |
|
467 |
array_keys($var), |
|
468 |
array_values($var)); |
|
469 |
||
470 |
foreach($properties as $property) { |
|
471 |
if(Services_JSON::isError($property)) { |
|
472 |
return $property; |
|
473 |
} |
|
474 |
} |
|
475 |
||
476 |
return '{' . join(',', $properties) . '}'; |
|
477 |
} |
|
478 |
||
479 |
// treat it like a regular array |
|
480 |
$elements = array_map(array($this, '_encode'), $var); |
|
481 |
||
482 |
foreach($elements as $element) { |
|
483 |
if(Services_JSON::isError($element)) { |
|
484 |
return $element; |
|
485 |
} |
|
486 |
} |
|
487 |
||
488 |
return '[' . join(',', $elements) . ']'; |
|
489 |
||
490 |
case 'object': |
|
491 |
||
492 |
// support toJSON methods. |
|
493 |
if (($this->use & SERVICES_JSON_USE_TO_JSON) && method_exists($var, 'toJSON')) { |
|
494 |
// this may end up allowing unlimited recursion |
|
495 |
// so we check the return value to make sure it's not got the same method. |
|
496 |
$recode = $var->toJSON(); |
|
497 |
||
498 |
if (method_exists($recode, 'toJSON')) { |
|
499 |
||
500 |
return ($this->use & SERVICES_JSON_SUPPRESS_ERRORS) |
|
501 |
? 'null' |
|
502 |
: new Services_JSON_Error(get_class($var). |
|
503 |
" toJSON returned an object with a toJSON method."); |
|
504 |
||
505 |
} |
|
506 |
||
507 |
return $this->_encode( $recode ); |
|
508 |
} |
|
509 |
||
510 |
$vars = get_object_vars($var); |
|
511 |
||
512 |
$properties = array_map(array($this, 'name_value'), |
|
513 |
array_keys($vars), |
|
514 |
array_values($vars)); |
|
515 |
||
516 |
foreach($properties as $property) { |
|
517 |
if(Services_JSON::isError($property)) { |
|
518 |
return $property; |
|
519 |
} |
|
520 |
} |
|
521 |
||
522 |
return '{' . join(',', $properties) . '}'; |
|
523 |
||
524 |
default: |
|
525 |
return ($this->use & SERVICES_JSON_SUPPRESS_ERRORS) |
|
526 |
? 'null' |
|
527 |
: new Services_JSON_Error(gettype($var)." can not be encoded as JSON string"); |
|
528 |
} |
|
529 |
} |
|
530 |
||
531 |
/** |
|
532 |
* array-walking function for use in generating JSON-formatted name-value pairs |
|
533 |
* |
|
534 |
* @param string $name name of key to use |
|
535 |
* @param mixed $value reference to an array element to be encoded |
|
536 |
* |
|
537 |
* @return string JSON-formatted name-value pair, like '"name":value' |
|
538 |
* @access private |
|
539 |
*/ |
|
540 |
function name_value($name, $value) |
|
541 |
{ |
|
542 |
$encoded_value = $this->_encode($value); |
|
543 |
||
544 |
if(Services_JSON::isError($encoded_value)) { |
|
545 |
return $encoded_value; |
|
546 |
} |
|
547 |
||
548 |
return $this->_encode(strval($name)) . ':' . $encoded_value; |
|
549 |
} |
|
550 |
||
551 |
/** |
|
552 |
* reduce a string by removing leading and trailing comments and whitespace |
|
553 |
* |
|
554 |
* @param $str string string value to strip of comments and whitespace |
|
555 |
* |
|
556 |
* @return string string value stripped of comments and whitespace |
|
557 |
* @access private |
|
558 |
*/ |
|
559 |
function reduce_string($str) |
|
560 |
{ |
|
561 |
$str = preg_replace(array( |
|
562 |
||
563 |
// eliminate single line comments in '// ...' form |
|
564 |
'#^\s*//(.+)$#m', |
|
565 |
||
566 |
// eliminate multi-line comments in '/* ... */' form, at start of string |
|
567 |
'#^\s*/\*(.+)\*/#Us', |
|
568 |
||
569 |
// eliminate multi-line comments in '/* ... */' form, at end of string |
|
570 |
'#/\*(.+)\*/\s*$#Us' |
|
571 |
||
572 |
), '', $str); |
|
573 |
||
574 |
// eliminate extraneous space |
|
575 |
return trim($str); |
|
576 |
} |
|
577 |
||
578 |
/** |
|
579 |
* decodes a JSON string into appropriate variable |
|
580 |
* |
|
581 |
* @param string $str JSON-formatted string |
|
582 |
* |
|
583 |
* @return mixed number, boolean, string, array, or object |
|
584 |
* corresponding to given JSON input string. |
|
585 |
* See argument 1 to Services_JSON() above for object-output behavior. |
|
586 |
* Note that decode() always returns strings |
|
587 |
* in ASCII or UTF-8 format! |
|
588 |
* @access public |
|
589 |
*/ |
|
590 |
function decode($str) |
|
591 |
{ |
|
592 |
$str = $this->reduce_string($str); |
|
593 |
||
594 |
switch (strtolower($str)) { |
|
595 |
case 'true': |
|
596 |
return true; |
|
597 |
||
598 |
case 'false': |
|
599 |
return false; |
|
600 |
||
601 |
case 'null': |
|
602 |
return null; |
|
603 |
||
604 |
default: |
|
605 |
$m = array(); |
|
606 |
||
607 |
if (is_numeric($str)) { |
|
608 |
// Lookie-loo, it's a number |
|
609 |
||
610 |
// This would work on its own, but I'm trying to be |
|
611 |
// good about returning integers where appropriate: |
|
612 |
// return (float)$str; |
|
613 |
||
614 |
// Return float or int, as appropriate |
|
615 |
return ((float)$str == (integer)$str) |
|
616 |
? (integer)$str |
|
617 |
: (float)$str; |
|
618 |
||
619 |
} elseif (preg_match('/^("|\').*(\1)$/s', $str, $m) && $m[1] == $m[2]) { |
|
620 |
// STRINGS RETURNED IN UTF-8 FORMAT |
|
621 |
$delim = $this->substr8($str, 0, 1); |
|
622 |
$chrs = $this->substr8($str, 1, -1); |
|
623 |
$utf8 = ''; |
|
624 |
$strlen_chrs = $this->strlen8($chrs); |
|
625 |
||
626 |
for ($c = 0; $c < $strlen_chrs; ++$c) { |
|
627 |
||
628 |
$substr_chrs_c_2 = $this->substr8($chrs, $c, 2); |
|
629 |
$ord_chrs_c = ord($chrs{$c}); |
|
630 |
||
631 |
switch (true) { |
|
632 |
case $substr_chrs_c_2 == '\b': |
|
633 |
$utf8 .= chr(0x08); |
|
634 |
++$c; |
|
635 |
break; |
|
636 |
case $substr_chrs_c_2 == '\t': |
|
637 |
$utf8 .= chr(0x09); |
|
638 |
++$c; |
|
639 |
break; |
|
640 |
case $substr_chrs_c_2 == '\n': |
|
641 |
$utf8 .= chr(0x0A); |
|
642 |
++$c; |
|
643 |
break; |
|
644 |
case $substr_chrs_c_2 == '\f': |
|
645 |
$utf8 .= chr(0x0C); |
|
646 |
++$c; |
|
647 |
break; |
|
648 |
case $substr_chrs_c_2 == '\r': |
|
649 |
$utf8 .= chr(0x0D); |
|
650 |
++$c; |
|
651 |
break; |
|
652 |
||
653 |
case $substr_chrs_c_2 == '\\"': |
|
654 |
case $substr_chrs_c_2 == '\\\'': |
|
655 |
case $substr_chrs_c_2 == '\\\\': |
|
656 |
case $substr_chrs_c_2 == '\\/': |
|
657 |
if (($delim == '"' && $substr_chrs_c_2 != '\\\'') || |
|
658 |
($delim == "'" && $substr_chrs_c_2 != '\\"')) { |
|
659 |
$utf8 .= $chrs{++$c}; |
|
660 |
} |
|
661 |
break; |
|
662 |
||
663 |
case preg_match('/\\\u[0-9A-F]{4}/i', $this->substr8($chrs, $c, 6)): |
|
664 |
// single, escaped unicode character |
|
665 |
$utf16 = chr(hexdec($this->substr8($chrs, ($c + 2), 2))) |
|
666 |
. chr(hexdec($this->substr8($chrs, ($c + 4), 2))); |
|
667 |
$utf8 .= $this->utf162utf8($utf16); |
|
668 |
$c += 5; |
|
669 |
break; |
|
670 |
||
671 |
case ($ord_chrs_c >= 0x20) && ($ord_chrs_c <= 0x7F): |
|
672 |
$utf8 .= $chrs{$c}; |
|
673 |
break; |
|
674 |
||
675 |
case ($ord_chrs_c & 0xE0) == 0xC0: |
|
676 |
// characters U-00000080 - U-000007FF, mask 110XXXXX |
|
677 |
//see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
|
678 |
$utf8 .= $this->substr8($chrs, $c, 2); |
|
679 |
++$c; |
|
680 |
break; |
|
681 |
||
682 |
case ($ord_chrs_c & 0xF0) == 0xE0: |
|
683 |
// characters U-00000800 - U-0000FFFF, mask 1110XXXX |
|
684 |
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
|
685 |
$utf8 .= $this->substr8($chrs, $c, 3); |
|
686 |
$c += 2; |
|
687 |
break; |
|
688 |
||
689 |
case ($ord_chrs_c & 0xF8) == 0xF0: |
|
690 |
// characters U-00010000 - U-001FFFFF, mask 11110XXX |
|
691 |
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
|
692 |
$utf8 .= $this->substr8($chrs, $c, 4); |
|
693 |
$c += 3; |
|
694 |
break; |
|
695 |
||
696 |
case ($ord_chrs_c & 0xFC) == 0xF8: |
|
697 |
// characters U-00200000 - U-03FFFFFF, mask 111110XX |
|
698 |
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
|
699 |
$utf8 .= $this->substr8($chrs, $c, 5); |
|
700 |
$c += 4; |
|
701 |
break; |
|
702 |
||
703 |
case ($ord_chrs_c & 0xFE) == 0xFC: |
|
704 |
// characters U-04000000 - U-7FFFFFFF, mask 1111110X |
|
705 |
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8 |
|
706 |
$utf8 .= $this->substr8($chrs, $c, 6); |
|
707 |
$c += 5; |
|
708 |
break; |
|
709 |
||
710 |
} |
|
711 |
||
712 |
} |
|
713 |
||
714 |
return $utf8; |
|
715 |
||
716 |
} elseif (preg_match('/^\[.*\]$/s', $str) || preg_match('/^\{.*\}$/s', $str)) { |
|
717 |
// array, or object notation |
|
718 |
||
719 |
if ($str{0} == '[') { |
|
720 |
$stk = array(SERVICES_JSON_IN_ARR); |
|
721 |
$arr = array(); |
|
722 |
} else { |
|
723 |
if ($this->use & SERVICES_JSON_LOOSE_TYPE) { |
|
724 |
$stk = array(SERVICES_JSON_IN_OBJ); |
|
725 |
$obj = array(); |
|
726 |
} else { |
|
727 |
$stk = array(SERVICES_JSON_IN_OBJ); |
|
728 |
$obj = new stdClass(); |
|
729 |
} |
|
730 |
} |
|
731 |
||
732 |
array_push($stk, array('what' => SERVICES_JSON_SLICE, |
|
733 |
'where' => 0, |
|
734 |
'delim' => false)); |
|
735 |
||
736 |
$chrs = $this->substr8($str, 1, -1); |
|
737 |
$chrs = $this->reduce_string($chrs); |
|
738 |
||
739 |
if ($chrs == '') { |
|
740 |
if (reset($stk) == SERVICES_JSON_IN_ARR) { |
|
741 |
return $arr; |
|
742 |
||
743 |
} else { |
|
744 |
return $obj; |
|
745 |
||
746 |
} |
|
747 |
} |
|
748 |
||
749 |
//print("\nparsing {$chrs}\n"); |
|
750 |
||
751 |
$strlen_chrs = $this->strlen8($chrs); |
|
752 |
||
753 |
for ($c = 0; $c <= $strlen_chrs; ++$c) { |
|
754 |
||
755 |
$top = end($stk); |
|
756 |
$substr_chrs_c_2 = $this->substr8($chrs, $c, 2); |
|
757 |
||
758 |
if (($c == $strlen_chrs) || (($chrs{$c} == ',') && ($top['what'] == SERVICES_JSON_SLICE))) { |
|
759 |
// found a comma that is not inside a string, array, etc., |
|
760 |
// OR we've reached the end of the character list |
|
761 |
$slice = $this->substr8($chrs, $top['where'], ($c - $top['where'])); |
|
762 |
array_push($stk, array('what' => SERVICES_JSON_SLICE, 'where' => ($c + 1), 'delim' => false)); |
|
763 |
//print("Found split at {$c}: ".$this->substr8($chrs, $top['where'], (1 + $c - $top['where']))."\n"); |
|
764 |
||
765 |
if (reset($stk) == SERVICES_JSON_IN_ARR) { |
|
766 |
// we are in an array, so just push an element onto the stack |
|
767 |
array_push($arr, $this->decode($slice)); |
|
768 |
||
769 |
} elseif (reset($stk) == SERVICES_JSON_IN_OBJ) { |
|
770 |
// we are in an object, so figure |
|
771 |
// out the property name and set an |
|
772 |
// element in an associative array, |
|
773 |
// for now |
|
774 |
$parts = array(); |
|
775 |
||
776 |
if (preg_match('/^\s*(["\'].*[^\\\]["\'])\s*:/Uis', $slice, $parts)) { |
|
777 |
// "name":value pair |
|
778 |
$key = $this->decode($parts[1]); |
|
779 |
$val = $this->decode(trim(substr($slice, strlen($parts[0])), ", \t\n\r\0\x0B")); |
|
780 |
if ($this->use & SERVICES_JSON_LOOSE_TYPE) { |
|
781 |
$obj[$key] = $val; |
|
782 |
} else { |
|
783 |
$obj->$key = $val; |
|
784 |
} |
|
785 |
} elseif (preg_match('/^\s*(\w+)\s*:/Uis', $slice, $parts)) { |
|
786 |
// name:value pair, where name is unquoted |
|
787 |
$key = $parts[1]; |
|
788 |
$val = $this->decode(trim(substr($slice, strlen($parts[0])), ", \t\n\r\0\x0B")); |
|
789 |
||
790 |
if ($this->use & SERVICES_JSON_LOOSE_TYPE) { |
|
791 |
$obj[$key] = $val; |
|
792 |
} else { |
|
793 |
$obj->$key = $val; |
|
794 |
} |
|
795 |
} |
|
796 |
||
797 |
} |
|
798 |
||
799 |
} elseif ((($chrs{$c} == '"') || ($chrs{$c} == "'")) && ($top['what'] != SERVICES_JSON_IN_STR)) { |
|
800 |
// found a quote, and we are not inside a string |
|
801 |
array_push($stk, array('what' => SERVICES_JSON_IN_STR, 'where' => $c, 'delim' => $chrs{$c})); |
|
802 |
//print("Found start of string at {$c}\n"); |
|
803 |
||
804 |
} elseif (($chrs{$c} == $top['delim']) && |
|
805 |
($top['what'] == SERVICES_JSON_IN_STR) && |
|
806 |
(($this->strlen8($this->substr8($chrs, 0, $c)) - $this->strlen8(rtrim($this->substr8($chrs, 0, $c), '\\'))) % 2 != 1)) { |
|
807 |
// found a quote, we're in a string, and it's not escaped |
|
| 9 | 808 |
// we know that it's not escaped because there is _not_ an |
| 0 | 809 |
// odd number of backslashes at the end of the string so far |
810 |
array_pop($stk); |
|
811 |
//print("Found end of string at {$c}: ".$this->substr8($chrs, $top['where'], (1 + 1 + $c - $top['where']))."\n"); |
|
812 |
||
813 |
} elseif (($chrs{$c} == '[') && |
|
814 |
in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) { |
|
815 |
// found a left-bracket, and we are in an array, object, or slice |
|
816 |
array_push($stk, array('what' => SERVICES_JSON_IN_ARR, 'where' => $c, 'delim' => false)); |
|
817 |
//print("Found start of array at {$c}\n"); |
|
818 |
||
819 |
} elseif (($chrs{$c} == ']') && ($top['what'] == SERVICES_JSON_IN_ARR)) { |
|
820 |
// found a right-bracket, and we're in an array |
|
821 |
array_pop($stk); |
|
822 |
//print("Found end of array at {$c}: ".$this->substr8($chrs, $top['where'], (1 + $c - $top['where']))."\n"); |
|
823 |
||
824 |
} elseif (($chrs{$c} == '{') && |
|
825 |
in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) { |
|
826 |
// found a left-brace, and we are in an array, object, or slice |
|
827 |
array_push($stk, array('what' => SERVICES_JSON_IN_OBJ, 'where' => $c, 'delim' => false)); |
|
828 |
//print("Found start of object at {$c}\n"); |
|
829 |
||
830 |
} elseif (($chrs{$c} == '}') && ($top['what'] == SERVICES_JSON_IN_OBJ)) { |
|
831 |
// found a right-brace, and we're in an object |
|
832 |
array_pop($stk); |
|
833 |
//print("Found end of object at {$c}: ".$this->substr8($chrs, $top['where'], (1 + $c - $top['where']))."\n"); |
|
834 |
||
835 |
} elseif (($substr_chrs_c_2 == '/*') && |
|
836 |
in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) { |
|
837 |
// found a comment start, and we are in an array, object, or slice |
|
838 |
array_push($stk, array('what' => SERVICES_JSON_IN_CMT, 'where' => $c, 'delim' => false)); |
|
839 |
$c++; |
|
840 |
//print("Found start of comment at {$c}\n"); |
|
841 |
||
842 |
} elseif (($substr_chrs_c_2 == '*/') && ($top['what'] == SERVICES_JSON_IN_CMT)) { |
|
843 |
// found a comment end, and we're in one now |
|
844 |
array_pop($stk); |
|
845 |
$c++; |
|
846 |
||
847 |
for ($i = $top['where']; $i <= $c; ++$i) |
|
848 |
$chrs = substr_replace($chrs, ' ', $i, 1); |
|
849 |
||
850 |
//print("Found end of comment at {$c}: ".$this->substr8($chrs, $top['where'], (1 + $c - $top['where']))."\n"); |
|
851 |
||
852 |
} |
|
853 |
||
854 |
} |
|
855 |
||
856 |
if (reset($stk) == SERVICES_JSON_IN_ARR) { |
|
857 |
return $arr; |
|
858 |
||
859 |
} elseif (reset($stk) == SERVICES_JSON_IN_OBJ) { |
|
860 |
return $obj; |
|
861 |
||
862 |
} |
|
863 |
||
864 |
} |
|
865 |
} |
|
866 |
} |
|
867 |
||
868 |
/** |
|
869 |
* @todo Ultimately, this should just call PEAR::isError() |
|
870 |
*/ |
|
871 |
function isError($data, $code = null) |
|
872 |
{ |
|
873 |
if (class_exists('pear')) { |
|
874 |
return PEAR::isError($data, $code); |
|
875 |
} elseif (is_object($data) && (get_class($data) == 'services_json_error' || |
|
876 |
is_subclass_of($data, 'services_json_error'))) { |
|
877 |
return true; |
|
878 |
} |
|
879 |
||
880 |
return false; |
|
881 |
} |
|
882 |
||
883 |
/** |
|
884 |
* Calculates length of string in bytes |
|
885 |
* @param string |
|
886 |
* @return integer length |
|
887 |
*/ |
|
888 |
function strlen8( $str ) |
|
889 |
{ |
|
890 |
if ( $this->_mb_strlen ) { |
|
891 |
return mb_strlen( $str, "8bit" ); |
|
892 |
} |
|
893 |
return strlen( $str ); |
|
894 |
} |
|
895 |
||
896 |
/** |
|
897 |
* Returns part of a string, interpreting $start and $length as number of bytes. |
|
898 |
* @param string |
|
899 |
* @param integer start |
|
900 |
* @param integer length |
|
901 |
* @return integer length |
|
902 |
*/ |
|
903 |
function substr8( $string, $start, $length=false ) |
|
904 |
{ |
|
905 |
if ( $length === false ) { |
|
906 |
$length = $this->strlen8( $string ) - $start; |
|
907 |
} |
|
908 |
if ( $this->_mb_substr ) { |
|
909 |
return mb_substr( $string, $start, $length, "8bit" ); |
|
910 |
} |
|
911 |
return substr( $string, $start, $length ); |
|
912 |
} |
|
913 |
||
914 |
} |
|
915 |
||
916 |
if (class_exists('PEAR_Error')) { |
|
917 |
||
918 |
class Services_JSON_Error extends PEAR_Error |
|
919 |
{ |
|
|
7
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
0
diff
changeset
|
920 |
function __construct($message = 'unknown error', $code = null, |
| 0 | 921 |
$mode = null, $options = null, $userinfo = null) |
922 |
{ |
|
923 |
parent::PEAR_Error($message, $code, $mode, $options, $userinfo); |
|
924 |
} |
|
|
7
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
0
diff
changeset
|
925 |
|
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
0
diff
changeset
|
926 |
public function Services_JSON_Error($message = 'unknown error', $code = null, |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
0
diff
changeset
|
927 |
$mode = null, $options = null, $userinfo = null) { |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
0
diff
changeset
|
928 |
self::__construct($message = 'unknown error', $code = null, |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
0
diff
changeset
|
929 |
$mode = null, $options = null, $userinfo = null); |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
0
diff
changeset
|
930 |
} |
| 0 | 931 |
} |
932 |
||
933 |
} else { |
|
934 |
||
935 |
/** |
|
936 |
* @todo Ultimately, this class shall be descended from PEAR_Error |
|
937 |
*/ |
|
938 |
class Services_JSON_Error |
|
939 |
{ |
|
|
7
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
0
diff
changeset
|
940 |
/** |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
0
diff
changeset
|
941 |
* PHP5 constructor. |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
0
diff
changeset
|
942 |
*/ |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
0
diff
changeset
|
943 |
function __construct( $message = 'unknown error', $code = null, |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
0
diff
changeset
|
944 |
$mode = null, $options = null, $userinfo = null ) |
| 0 | 945 |
{ |
946 |
||
947 |
} |
|
|
7
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
0
diff
changeset
|
948 |
|
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
0
diff
changeset
|
949 |
/** |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
0
diff
changeset
|
950 |
* PHP4 constructor. |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
0
diff
changeset
|
951 |
*/ |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
0
diff
changeset
|
952 |
public function Services_JSON_Error( $message = 'unknown error', $code = null, |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
0
diff
changeset
|
953 |
$mode = null, $options = null, $userinfo = null ) { |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
0
diff
changeset
|
954 |
self::__construct( $message, $code, $mode, $options, $userinfo ); |
|
cf61fcea0001
resynchronize code repo with production
ymh <ymh.work@gmail.com>
parents:
0
diff
changeset
|
955 |
} |
| 0 | 956 |
} |
957 |
||
958 |
} |
|
959 |
||
960 |
endif; |