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@@ -0,0 +1,899 @@
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+<?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 288200 2009-09-09 15:41:29Z 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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+/**
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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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+/**
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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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+/**
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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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+/**
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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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+/**
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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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+/**
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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 $use object behavior flags; combine with boolean-OR
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+ *
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+ * possible values:
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+ * - SERVICES_JSON_LOOSE_TYPE: loose typing.
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+ * "{...}" syntax creates associative arrays
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+ * instead of objects in decode().
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+ * - SERVICES_JSON_SUPPRESS_ERRORS: error suppression.
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+ * Values which can't be encoded (e.g. resources)
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+ * appear as NULL instead of throwing errors.
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+ * By default, a deeply-nested resource will
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+ * bubble up with an error, so all return values
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+ * from encode() should be checked with isError()
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+ */
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+ function Services_JSON($use = 0)
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+ {
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+ $this->use = $use;
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+ }
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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 $utf16 UTF-16 character
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+ * @return string UTF-8 character
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+ * @access private
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+ */
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+ function utf162utf8($utf16)
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+ {
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+ // oh please oh please oh please oh please oh please
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+ if(function_exists('mb_convert_encoding')) {
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+ return mb_convert_encoding($utf16, 'UTF-8', 'UTF-16');
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+ }
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+
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+ $bytes = (ord($utf16[0]) << 8) | ord($utf16[1]);
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+
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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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+
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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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+
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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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+ * 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 $utf8 UTF-8 character
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+ * @return string UTF-16 character
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+ * @access private
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+ */
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+ function utf82utf16($utf8)
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+ {
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+ // oh please oh please oh please oh please oh please
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+ if(function_exists('mb_convert_encoding')) {
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+ return mb_convert_encoding($utf8, 'UTF-16', 'UTF-8');
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+ }
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+
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+ switch(strlen($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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+
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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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+ * encodes an arbitrary variable into JSON format (and sends JSON Header)
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+ *
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+ * @param mixed $var any number, boolean, string, array, or object to be encoded.
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+ * see argument 1 to Services_JSON() above for array-parsing behavior.
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+ * if var is a strng, note that encode() always expects it
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+ * to be in ASCII or UTF-8 format!
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+ *
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+ * @return mixed JSON string representation of input var or an error if a problem occurs
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+ * @access public
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+ */
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+ function encode($var)
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+ {
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+ header('Content-type: application/json');
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+ return $this->_encode($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 CSS!!!!)
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+ *
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+ * @param mixed $var any number, boolean, string, array, or object to be encoded.
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+ * see argument 1 to Services_JSON() above for array-parsing behavior.
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+ * if var is a strng, note that encode() always expects it
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+ * to be in ASCII or UTF-8 format!
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+ *
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+ * @return mixed JSON string representation of input var or an error if a problem occurs
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+ * @access public
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+ */
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+ function encodeUnsafe($var)
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+ {
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+ return $this->_encode($var);
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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 $var any number, boolean, string, array, or object to be encoded.
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+ * see argument 1 to Services_JSON() above for array-parsing behavior.
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+ * if var is a strng, note that encode() always expects it
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+ * to be in ASCII or UTF-8 format!
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+ *
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+ * @return mixed JSON string representation of input var or an error if a problem occurs
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+ * @access public
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+ */
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+ function _encode($var)
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+ {
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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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+
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+ case 'NULL':
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+ return 'null';
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+
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+ case 'integer':
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+ return (int) $var;
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+
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+ case 'double':
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+ case 'float':
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+ return (float) $var;
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+
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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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+ $strlen_var = strlen($var);
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+
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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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+
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+ $ord_var_c = ord($var[$c]);
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+
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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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+
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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[$c];
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+ break;
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+
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+ case (($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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+
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+ case (($ord_var_c & 0xE0) == 0xC0):
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+ // characters U-00000080 - U-000007FF, mask 110XXXXX
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+ // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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+ if ($c+1 >= $strlen_var) {
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+ $c += 1;
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+ $ascii .= '?';
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+ break;
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+ }
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+
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+ $char = pack('C*', $ord_var_c, ord($var[$c + 1]));
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+ $c += 1;
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+ $utf16 = $this->utf82utf16($char);
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+ $ascii .= sprintf('\u%04s', bin2hex($utf16));
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+ break;
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+
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+ 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 http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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+ $char = pack('C*', $ord_var_c,
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+ @ord($var[$c + 1]),
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+ @ord($var[$c + 2]));
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+ $c += 2;
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+ $utf16 = $this->utf82utf16($char);
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+ $ascii .= sprintf('\u%04s', bin2hex($utf16));
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+ break;
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+
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+ 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 http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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+ $char = pack('C*', $ord_var_c,
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+ ord($var[$c + 1]),
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+ ord($var[$c + 2]),
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+ ord($var[$c + 3]));
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+ $c += 3;
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+ $utf16 = $this->utf82utf16($char);
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+ $ascii .= sprintf('\u%04s', bin2hex($utf16));
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+ break;
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+
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+ case (($ord_var_c & 0xFC) == 0xF8):
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+ // characters U-00200000 - U-03FFFFFF, mask 111110XX
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+ // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
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+ if ($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*', $ord_var_c,
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+ ord($var[$c + 1]),
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+ ord($var[$c + 2]),
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+ ord($var[$c + 3]),
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+ ord($var[$c + 4]));
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+ $c += 4;
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+ $utf16 = $this->utf82utf16($char);
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+ $ascii .= sprintf('\u%04s', bin2hex($utf16));
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+ break;
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+
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|
|
+ case (($ord_var_c & 0xFE) == 0xFC):
|
|
|
+ if ($c+5 >= $strlen_var) {
|
|
|
+ $c += 5;
|
|
|
+ $ascii .= '?';
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ // characters U-04000000 - U-7FFFFFFF, mask 1111110X
|
|
|
+ // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
|
|
|
+ $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]));
|
|
|
+ $c += 5;
|
|
|
+ $utf16 = $this->utf82utf16($char);
|
|
|
+ $ascii .= sprintf('\u%04s', bin2hex($utf16));
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+ return '"'.$ascii.'"';
|
|
|
+
|
|
|
+ case 'array':
|
|
|
+ /*
|
|
|
+ * As per JSON spec if any array key is not an integer
|
|
|
+ * we must treat the the whole array as an object. We
|
|
|
+ * also try to catch a sparsely populated associative
|
|
|
+ * array with numeric keys here because some JS engines
|
|
|
+ * will create an array with empty indexes up to
|
|
|
+ * max_index which can cause memory issues and because
|
|
|
+ * the keys, which may be relevant, will be remapped
|
|
|
+ * otherwise.
|
|
|
+ *
|
|
|
+ * As per the ECMA and JSON specification an object may
|
|
|
+ * have any string as a property. Unfortunately due to
|
|
|
+ * a hole in the ECMA specification if the key is a
|
|
|
+ * ECMA reserved word or starts with a digit the
|
|
|
+ * parameter is only accessible using ECMAScript's
|
|
|
+ * bracket notation.
|
|
|
+ */
|
|
|
+
|
|
|
+ // treat as a JSON object
|
|
|
+ if (is_array($var) && count($var) && (array_keys($var) !== range(0, sizeof($var) - 1))) {
|
|
|
+ $properties = array_map(array($this, 'name_value'),
|
|
|
+ array_keys($var),
|
|
|
+ array_values($var));
|
|
|
+
|
|
|
+ foreach($properties as $property) {
|
|
|
+ if(Services_JSON::isError($property)) {
|
|
|
+ return $property;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return '{' . join(',', $properties) . '}';
|
|
|
+ }
|
|
|
+
|
|
|
+ // treat it like a regular array
|
|
|
+ $elements = array_map(array($this, '_encode'), $var);
|
|
|
+
|
|
|
+ foreach($elements as $element) {
|
|
|
+ if(Services_JSON::isError($element)) {
|
|
|
+ return $element;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return '[' . join(',', $elements) . ']';
|
|
|
+
|
|
|
+ case 'object':
|
|
|
+ $vars = get_object_vars($var);
|
|
|
+
|
|
|
+ $properties = array_map(array($this, 'name_value'),
|
|
|
+ array_keys($vars),
|
|
|
+ array_values($vars));
|
|
|
+
|
|
|
+ foreach($properties as $property) {
|
|
|
+ if(Services_JSON::isError($property)) {
|
|
|
+ return $property;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ return '{' . join(',', $properties) . '}';
|
|
|
+
|
|
|
+ default:
|
|
|
+ return ($this->use & SERVICES_JSON_SUPPRESS_ERRORS)
|
|
|
+ ? 'null'
|
|
|
+ : new Services_JSON_Error(gettype($var)." can not be encoded as JSON string");
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * array-walking function for use in generating JSON-formatted name-value pairs
|
|
|
+ *
|
|
|
+ * @param string $name name of key to use
|
|
|
+ * @param mixed $value reference to an array element to be encoded
|
|
|
+ *
|
|
|
+ * @return string JSON-formatted name-value pair, like '"name":value'
|
|
|
+ * @access private
|
|
|
+ */
|
|
|
+ function name_value($name, $value)
|
|
|
+ {
|
|
|
+ $encoded_value = $this->_encode($value);
|
|
|
+
|
|
|
+ if(Services_JSON::isError($encoded_value)) {
|
|
|
+ return $encoded_value;
|
|
|
+ }
|
|
|
+
|
|
|
+ return $this->_encode(strval($name)) . ':' . $encoded_value;
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * reduce a string by removing leading and trailing comments and whitespace
|
|
|
+ *
|
|
|
+ * @param $str string string value to strip of comments and whitespace
|
|
|
+ *
|
|
|
+ * @return string string value stripped of comments and whitespace
|
|
|
+ * @access private
|
|
|
+ */
|
|
|
+ function reduce_string($str)
|
|
|
+ {
|
|
|
+ $str = preg_replace(array(
|
|
|
+
|
|
|
+ // eliminate single line comments in '// ...' form
|
|
|
+ '#^\s*//(.+)$#m',
|
|
|
+
|
|
|
+ // eliminate multi-line comments in '/* ... */' form, at start of string
|
|
|
+ '#^\s*/\*(.+)\*/#Us',
|
|
|
+
|
|
|
+ // eliminate multi-line comments in '/* ... */' form, at end of string
|
|
|
+ '#/\*(.+)\*/\s*$#Us'
|
|
|
+
|
|
|
+ ), '', $str);
|
|
|
+
|
|
|
+ // eliminate extraneous space
|
|
|
+ return trim($str);
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * decodes a JSON string into appropriate variable
|
|
|
+ *
|
|
|
+ * @param string $str JSON-formatted string
|
|
|
+ *
|
|
|
+ * @return mixed number, boolean, string, array, or object
|
|
|
+ * corresponding to given JSON input string.
|
|
|
+ * See argument 1 to Services_JSON() above for object-output behavior.
|
|
|
+ * Note that decode() always returns strings
|
|
|
+ * in ASCII or UTF-8 format!
|
|
|
+ * @access public
|
|
|
+ */
|
|
|
+ function decode($str)
|
|
|
+ {
|
|
|
+ $str = $this->reduce_string($str);
|
|
|
+
|
|
|
+ switch (strtolower($str)) {
|
|
|
+ case 'true':
|
|
|
+ return true;
|
|
|
+
|
|
|
+ case 'false':
|
|
|
+ return false;
|
|
|
+
|
|
|
+ case 'null':
|
|
|
+ return null;
|
|
|
+
|
|
|
+ default:
|
|
|
+ $m = array();
|
|
|
+
|
|
|
+ if (is_numeric($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)$str;
|
|
|
+
|
|
|
+ } elseif (preg_match('/^("|\').*(\1)$/s', $str, $m) && $m[1] == $m[2]) {
|
|
|
+ // STRINGS RETURNED IN UTF-8 FORMAT
|
|
|
+ $delim = substr($str, 0, 1);
|
|
|
+ $chrs = substr($str, 1, -1);
|
|
|
+ $utf8 = '';
|
|
|
+ $strlen_chrs = strlen($chrs);
|
|
|
+
|
|
|
+ for ($c = 0; $c < $strlen_chrs; ++$c) {
|
|
|
+
|
|
|
+ $substr_chrs_c_2 = substr($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', substr($chrs, $c, 6)):
|
|
|
+ // single, escaped unicode character
|
|
|
+ $utf16 = chr(hexdec(substr($chrs, ($c + 2), 2)))
|
|
|
+ . chr(hexdec(substr($chrs, ($c + 4), 2)));
|
|
|
+ $utf8 .= $this->utf162utf8($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 http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
|
|
|
+ $utf8 .= substr($chrs, $c, 2);
|
|
|
+ ++$c;
|
|
|
+ break;
|
|
|
+
|
|
|
+ case ($ord_chrs_c & 0xF0) == 0xE0:
|
|
|
+ // characters U-00000800 - U-0000FFFF, mask 1110XXXX
|
|
|
+ // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
|
|
|
+ $utf8 .= substr($chrs, $c, 3);
|
|
|
+ $c += 2;
|
|
|
+ break;
|
|
|
+
|
|
|
+ case ($ord_chrs_c & 0xF8) == 0xF0:
|
|
|
+ // characters U-00010000 - U-001FFFFF, mask 11110XXX
|
|
|
+ // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
|
|
|
+ $utf8 .= substr($chrs, $c, 4);
|
|
|
+ $c += 3;
|
|
|
+ break;
|
|
|
+
|
|
|
+ case ($ord_chrs_c & 0xFC) == 0xF8:
|
|
|
+ // characters U-00200000 - U-03FFFFFF, mask 111110XX
|
|
|
+ // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
|
|
|
+ $utf8 .= substr($chrs, $c, 5);
|
|
|
+ $c += 4;
|
|
|
+ break;
|
|
|
+
|
|
|
+ case ($ord_chrs_c & 0xFE) == 0xFC:
|
|
|
+ // characters U-04000000 - U-7FFFFFFF, mask 1111110X
|
|
|
+ // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
|
|
|
+ $utf8 .= substr($chrs, $c, 6);
|
|
|
+ $c += 5;
|
|
|
+ break;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ return $utf8;
|
|
|
+
|
|
|
+ } elseif (preg_match('/^\[.*\]$/s', $str) || preg_match('/^\{.*\}$/s', $str)) {
|
|
|
+ // array, or object notation
|
|
|
+
|
|
|
+ if ($str[0] == '[') {
|
|
|
+ $stk = array(SERVICES_JSON_IN_ARR);
|
|
|
+ $arr = array();
|
|
|
+ } else {
|
|
|
+ if ($this->use & SERVICES_JSON_LOOSE_TYPE) {
|
|
|
+ $stk = array(SERVICES_JSON_IN_OBJ);
|
|
|
+ $obj = array();
|
|
|
+ } else {
|
|
|
+ $stk = array(SERVICES_JSON_IN_OBJ);
|
|
|
+ $obj = new stdClass();
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ array_push($stk, array('what' => SERVICES_JSON_SLICE,
|
|
|
+ 'where' => 0,
|
|
|
+ 'delim' => false));
|
|
|
+
|
|
|
+ $chrs = substr($str, 1, -1);
|
|
|
+ $chrs = $this->reduce_string($chrs);
|
|
|
+
|
|
|
+ if ($chrs == '') {
|
|
|
+ if (reset($stk) == SERVICES_JSON_IN_ARR) {
|
|
|
+ return $arr;
|
|
|
+
|
|
|
+ } else {
|
|
|
+ return $obj;
|
|
|
+
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ //print("\nparsing {$chrs}\n");
|
|
|
+
|
|
|
+ $strlen_chrs = strlen($chrs);
|
|
|
+
|
|
|
+ for ($c = 0; $c <= $strlen_chrs; ++$c) {
|
|
|
+
|
|
|
+ $top = end($stk);
|
|
|
+ $substr_chrs_c_2 = substr($chrs, $c, 2);
|
|
|
+
|
|
|
+ if (($c == $strlen_chrs) || (($chrs[$c] == ',') && ($top['what'] == SERVICES_JSON_SLICE))) {
|
|
|
+ // found a comma that is not inside a string, array, etc.,
|
|
|
+ // OR we've reached the end of the character list
|
|
|
+ $slice = substr($chrs, $top['where'], ($c - $top['where']));
|
|
|
+ array_push($stk, array('what' => SERVICES_JSON_SLICE, 'where' => ($c + 1), 'delim' => false));
|
|
|
+ //print("Found split at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
|
|
|
+
|
|
|
+ if (reset($stk) == SERVICES_JSON_IN_ARR) {
|
|
|
+ // we are in an array, so just push an element onto the stack
|
|
|
+ array_push($arr, $this->decode($slice));
|
|
|
+
|
|
|
+ } elseif (reset($stk) == SERVICES_JSON_IN_OBJ) {
|
|
|
+ // we are in an object, so figure
|
|
|
+ // out the property name and set an
|
|
|
+ // element in an associative array,
|
|
|
+ // for now
|
|
|
+ $parts = array();
|
|
|
+
|
|
|
+ if (preg_match('/^\s*(["\'].*[^\\\]["\'])\s*:\s*(\S.*),?$/Uis', $slice, $parts)) {
|
|
|
+ // "name":value pair
|
|
|
+ $key = $this->decode($parts[1]);
|
|
|
+ $val = $this->decode($parts[2]);
|
|
|
+
|
|
|
+ if ($this->use & SERVICES_JSON_LOOSE_TYPE) {
|
|
|
+ $obj[$key] = $val;
|
|
|
+ } else {
|
|
|
+ $obj->$key = $val;
|
|
|
+ }
|
|
|
+ } elseif (preg_match('/^\s*(\w+)\s*:\s*(\S.*),?$/Uis', $slice, $parts)) {
|
|
|
+ // name:value pair, where name is unquoted
|
|
|
+ $key = $parts[1];
|
|
|
+ $val = $this->decode($parts[2]);
|
|
|
+
|
|
|
+ if ($this->use & SERVICES_JSON_LOOSE_TYPE) {
|
|
|
+ $obj[$key] = $val;
|
|
|
+ } else {
|
|
|
+ $obj->$key = $val;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ } elseif ((($chrs[$c] == '"') || ($chrs[$c] == "'")) && ($top['what'] != SERVICES_JSON_IN_STR)) {
|
|
|
+ // found a quote, and we are not inside a string
|
|
|
+ array_push($stk, array('what' => SERVICES_JSON_IN_STR, 'where' => $c, 'delim' => $chrs[$c]));
|
|
|
+ //print("Found start of string at {$c}\n");
|
|
|
+
|
|
|
+ } elseif (($chrs[$c] == $top['delim']) &&
|
|
|
+ ($top['what'] == SERVICES_JSON_IN_STR) &&
|
|
|
+ ((strlen(substr($chrs, 0, $c)) - strlen(rtrim(substr($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);
|
|
|
+ //print("Found end of string at {$c}: ".substr($chrs, $top['where'], (1 + 1 + $c - $top['where']))."\n");
|
|
|
+
|
|
|
+ } elseif (($chrs[$c] == '[') &&
|
|
|
+ in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) {
|
|
|
+ // found a left-bracket, and we are in an array, object, or slice
|
|
|
+ array_push($stk, array('what' => SERVICES_JSON_IN_ARR, 'where' => $c, 'delim' => false));
|
|
|
+ //print("Found start of array at {$c}\n");
|
|
|
+
|
|
|
+ } elseif (($chrs[$c] == ']') && ($top['what'] == SERVICES_JSON_IN_ARR)) {
|
|
|
+ // found a right-bracket, and we're in an array
|
|
|
+ array_pop($stk);
|
|
|
+ //print("Found end of array at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
|
|
|
+
|
|
|
+ } elseif (($chrs[$c] == '{') &&
|
|
|
+ in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) {
|
|
|
+ // found a left-brace, and we are in an array, object, or slice
|
|
|
+ array_push($stk, array('what' => SERVICES_JSON_IN_OBJ, 'where' => $c, 'delim' => false));
|
|
|
+ //print("Found start of object at {$c}\n");
|
|
|
+
|
|
|
+ } elseif (($chrs[$c] == '}') && ($top['what'] == SERVICES_JSON_IN_OBJ)) {
|
|
|
+ // found a right-brace, and we're in an object
|
|
|
+ array_pop($stk);
|
|
|
+ //print("Found end of object at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
|
|
|
+
|
|
|
+ } elseif (($substr_chrs_c_2 == '/*') &&
|
|
|
+ in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) {
|
|
|
+ // found a comment start, and we are in an array, object, or slice
|
|
|
+ array_push($stk, array('what' => SERVICES_JSON_IN_CMT, 'where' => $c, 'delim' => false));
|
|
|
+ $c++;
|
|
|
+ //print("Found start of comment at {$c}\n");
|
|
|
+
|
|
|
+ } elseif (($substr_chrs_c_2 == '*/') && ($top['what'] == SERVICES_JSON_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, ' ', $i, 1);
|
|
|
+
|
|
|
+ //print("Found end of comment at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ if (reset($stk) == SERVICES_JSON_IN_ARR) {
|
|
|
+ return $arr;
|
|
|
+
|
|
|
+ } elseif (reset($stk) == SERVICES_JSON_IN_OBJ) {
|
|
|
+ return $obj;
|
|
|
+
|
|
|
+ }
|
|
|
+
|
|
|
+ }
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ /**
|
|
|
+ * @todo Ultimately, this should just call PEAR::isError()
|
|
|
+ */
|
|
|
+ function isError($data, $code = null)
|
|
|
+ {
|
|
|
+ if (class_exists('pear')) {
|
|
|
+ return PEAR::isError($data, $code);
|
|
|
+ } elseif (is_object($data) && (get_class($data) == 'services_json_error' ||
|
|
|
+ is_subclass_of($data, 'services_json_error'))) {
|
|
|
+ return true;
|
|
|
+ }
|
|
|
+
|
|
|
+ return false;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+if (class_exists('PEAR_Error')) {
|
|
|
+
|
|
|
+ class Services_JSON_Error extends PEAR_Error
|
|
|
+ {
|
|
|
+ function Services_JSON_Error($message = 'unknown error', $code = null,
|
|
|
+ $mode = null, $options = null, $userinfo = null)
|
|
|
+ {
|
|
|
+ parent::PEAR_Error($message, $code, $mode, $options, $userinfo);
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+} else {
|
|
|
+
|
|
|
+ /**
|
|
|
+ * @todo Ultimately, this class shall be descended from PEAR_Error
|
|
|
+ */
|
|
|
+ class Services_JSON_Error
|
|
|
+ {
|
|
|
+ function Services_JSON_Error($message = 'unknown error', $code = null,
|
|
|
+ $mode = null, $options = null, $userinfo = null)
|
|
|
+ {
|
|
|
+
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+}
|
|
|
+endif;
|
|
|
+
|
|
|
+
|
|
|
+/**
|
|
|
+ * 为了兼容低版本的php而增加的函数集
|
|
|
+ * json从5.2.0开始支持，wordpress 2.9开始提供json函数的兼容性代码
|
|
|
+ */
|
|
|
+if ( !function_exists('json_encode') ) {
|
|
|
+ function json_encode( $string ) {
|
|
|
+ global $wp_json;
|
|
|
+
|
|
|
+ if ( !is_a($wp_json, 'Services_JSON') ) {
|
|
|
+ $wp_json = new Services_JSON();
|
|
|
+ }
|
|
|
+
|
|
|
+ return $wp_json->encodeUnsafe( $string );
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+if ( !function_exists('json_decode') ) {
|
|
|
+ function json_decode( $string, $assoc_array = false ) {
|
|
|
+ global $wp_json;
|
|
|
+
|
|
|
+ if ( !is_a($wp_json, 'Services_JSON') ) {
|
|
|
+ $wp_json = new Services_JSON();
|
|
|
+ }
|
|
|
+
|
|
|
+ $res = $wp_json->decode( $string );
|
|
|
+ if ( $assoc_array )
|
|
|
+ $res = _json_decode_object_helper( $res );
|
|
|
+ return $res;
|
|
|
+ }
|
|
|
+ function _json_decode_object_helper($data) {
|
|
|
+ if ( is_object($data) )
|
|
|
+ $data = get_object_vars($data);
|
|
|
+ return is_array($data) ? array_map(__FUNCTION__, $data) : $data;
|
|
|
+ }
|
|
|
+}
|
