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/_assets/jk_campaignmonitor/class/services_json.php

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PHP | 782 lines | 425 code | 110 blank | 247 comment | 95 complexity | 69d64e5e2db1facb806cf724983293ef MD5 | raw file
  1<?php
  2
  3/**
  4 * Converts to and from JSON format.
  5 *
  6 * JSON (JavaScript Object Notation) is a lightweight data-interchange
  7 * format. It is easy for humans to read and write. It is easy for machines
  8 * to parse and generate. It is based on a subset of the JavaScript
  9 * Programming Language, Standard ECMA-262 3rd Edition - December 1999.
 10 * This feature can also be found in  Python. JSON is a text format that is
 11 * completely language independent but uses conventions that are familiar
 12 * to programmers of the C-family of languages, including C, C++, C#, Java,
 13 * JavaScript, Perl, TCL, and many others. These properties make JSON an
 14 * ideal data-interchange language.
 15 *
 16 * This package provides a simple encoder and decoder for JSON notation. It
 17 * is intended for use with client-side Javascript applications that make
 18 * use of HTTPRequest to perform server communication functions - data can
 19 * be encoded into JSON notation for use in a client-side javascript, or
 20 * decoded from incoming Javascript requests. JSON format is native to
 21 * Javascript, and can be directly eval()'ed with no further parsing
 22 * overhead
 23 *
 24 * All strings should be in ASCII or UTF-8 format!
 25 *
 26 * LICENSE: Redistribution and use in source and binary forms, with or
 27 * without modification, are permitted provided that the following
 28 * conditions are met: Redistributions of source code must retain the
 29 * above copyright notice, this list of conditions and the following
 30 * disclaimer. Redistributions in binary form must reproduce the above
 31 * copyright notice, this list of conditions and the following disclaimer
 32 * in the documentation and/or other materials provided with the
 33 * distribution.
 34 *
 35 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
 36 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 37 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
 38 * NO EVENT SHALL CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 39 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 40 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
 41 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 42 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 43 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 44 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
 45 * DAMAGE.
 46 *
 47 * @category
 48 * @package     Services_JSON
 49 * @author      Michal Migurski <mike-json@teczno.com>
 50 * @author      Matt Knapp <mdknapp[at]gmail[dot]com>
 51 * @author      Brett Stimmerman <brettstimmerman[at]gmail[dot]com>
 52 * @copyright   2005 Michal Migurski
 53 * @version     CVS: $Id: JSON.php,v 1.31 2006/06/28 05:54:17 migurski Exp $
 54 * @license     http://www.opensource.org/licenses/bsd-license.php
 55 * @link        http://pear.php.net/pepr/pepr-proposal-show.php?id=198
 56 */
 57
 58/**
 59 * Marker constant for Services_JSON::decode(), used to flag stack state
 60 */
 61define('CF7CM_SERVICES_JSON_SLICE',   1);
 62
 63/**
 64 * Marker constant for Services_JSON::decode(), used to flag stack state
 65 */
 66define('CF7CM_SERVICES_JSON_IN_STR',  2);
 67
 68/**
 69 * Marker constant for Services_JSON::decode(), used to flag stack state
 70 */
 71define('CF7CM_SERVICES_JSON_IN_ARR',  3);
 72
 73/**
 74 * Marker constant for Services_JSON::decode(), used to flag stack state
 75 */
 76define('CF7CM_SERVICES_JSON_IN_OBJ',  4);
 77
 78/**
 79 * Marker constant for Services_JSON::decode(), used to flag stack state
 80 */
 81define('CF7CM_SERVICES_JSON_IN_CMT', 5);
 82
 83/**
 84 * Behavior switch for Services_JSON::decode()
 85 */
 86define('CF7CM_SERVICES_JSON_LOOSE_TYPE', 16);
 87
 88/**
 89 * Behavior switch for Services_JSON::decode()
 90 */
 91define('CF7CM_SERVICES_JSON_SUPPRESS_ERRORS', 32);
 92
 93/**
 94 * Converts to and from JSON format.
 95 *
 96 * Brief example of use:
 97 *
 98 * <code>
 99 * // create a new instance of Services_JSON
100 * $json = new Services_JSON();
101 *
102 * // convert a complexe value to JSON notation, and send it to the browser
103 * $value = array('foo', 'bar', array(1, 2, 'baz'), array(3, array(4)));
104 * $output = $json->encode($value);
105 *
106 * print($output);
107 * // prints: ["foo","bar",[1,2,"baz"],[3,[4]]]
108 *
109 * // accept incoming POST data, assumed to be in JSON notation
110 * $input = file_get_contents('php://input', 1000000);
111 * $value = $json->decode($input);
112 * </code>
113 */
114class CF7CM_Services_JSON
115{
116   /**
117    * constructs a new JSON instance
118    *
119    * @param    int     $use    object behavior flags; combine with boolean-OR
120    *
121    *                           possible values:
122    *                           - SERVICES_JSON_LOOSE_TYPE:  loose typing.
123    *                                   "{...}" syntax creates associative arrays
124    *                                   instead of objects in decode().
125    *                           - SERVICES_JSON_SUPPRESS_ERRORS:  error suppression.
126    *                                   Values which can't be encoded (e.g. resources)
127    *                                   appear as NULL instead of throwing errors.
128    *                                   By default, a deeply-nested resource will
129    *                                   bubble up with an error, so all return values
130    *                                   from encode() should be checked with isError()
131    */
132    function CF7CM_Services_JSON($use = 0)
133    {
134        $this->use = $use;
135    }
136
137   /**
138    * convert a string from one UTF-16 char to one UTF-8 char
139    *
140    * Normally should be handled by mb_convert_encoding, but
141    * provides a slower PHP-only method for installations
142    * that lack the multibye string extension.
143    *
144    * @param    string  $utf16  UTF-16 character
145    * @return   string  UTF-8 character
146    * @access   private
147    */
148    function utf162utf8($utf16)
149    {
150        // oh please oh please oh please oh please oh please
151        if(function_exists('mb_convert_encoding')) {
152            return mb_convert_encoding($utf16, 'UTF-8', 'UTF-16');
153        }
154
155        $bytes = (ord($utf16{0}) << 8) | ord($utf16{1});
156
157        switch(true) {
158            case ((0x7F & $bytes) == $bytes):
159                // this case should never be reached, because we are in ASCII range
160                // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
161                return chr(0x7F & $bytes);
162
163            case (0x07FF & $bytes) == $bytes:
164                // return a 2-byte UTF-8 character
165                // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
166                return chr(0xC0 | (($bytes >> 6) & 0x1F))
167                     . chr(0x80 | ($bytes & 0x3F));
168
169            case (0xFFFF & $bytes) == $bytes:
170                // return a 3-byte UTF-8 character
171                // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
172                return chr(0xE0 | (($bytes >> 12) & 0x0F))
173                     . chr(0x80 | (($bytes >> 6) & 0x3F))
174                     . chr(0x80 | ($bytes & 0x3F));
175        }
176
177        // ignoring UTF-32 for now, sorry
178        return '';
179    }
180
181   /**
182    * convert a string from one UTF-8 char to one UTF-16 char
183    *
184    * Normally should be handled by mb_convert_encoding, but
185    * provides a slower PHP-only method for installations
186    * that lack the multibye string extension.
187    *
188    * @param    string  $utf8   UTF-8 character
189    * @return   string  UTF-16 character
190    * @access   private
191    */
192    function utf82utf16($utf8)
193    {
194        // oh please oh please oh please oh please oh please
195        if(function_exists('mb_convert_encoding')) {
196            return mb_convert_encoding($utf8, 'UTF-16', 'UTF-8');
197        }
198
199        switch(strlen($utf8)) {
200            case 1:
201                // this case should never be reached, because we are in ASCII range
202                // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
203                return $utf8;
204
205            case 2:
206                // return a UTF-16 character from a 2-byte UTF-8 char
207                // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
208                return chr(0x07 & (ord($utf8{0}) >> 2))
209                     . chr((0xC0 & (ord($utf8{0}) << 6))
210                         | (0x3F & ord($utf8{1})));
211
212            case 3:
213                // return a UTF-16 character from a 3-byte UTF-8 char
214                // see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
215                return chr((0xF0 & (ord($utf8{0}) << 4))
216                         | (0x0F & (ord($utf8{1}) >> 2)))
217                     . chr((0xC0 & (ord($utf8{1}) << 6))
218                         | (0x7F & ord($utf8{2})));
219        }
220
221        // ignoring UTF-32 for now, sorry
222        return '';
223    }
224
225   /**
226    * encodes an arbitrary variable into JSON format
227    *
228    * @param    mixed   $var    any number, boolean, string, array, or object to be encoded.
229    *                           see argument 1 to Services_JSON() above for array-parsing behavior.
230    *                           if var is a strng, note that encode() always expects it
231    *                           to be in ASCII or UTF-8 format!
232    *
233    * @return   mixed   JSON string representation of input var or an error if a problem occurs
234    * @access   public
235    */
236    function encode($var)
237    {
238        switch (gettype($var)) {
239            case 'boolean':
240                return $var ? 'true' : 'false';
241
242            case 'NULL':
243                return 'null';
244
245            case 'integer':
246                return (int) $var;
247
248            case 'double':
249            case 'float':
250                return (float) $var;
251
252            case 'string':
253                // STRINGS ARE EXPECTED TO BE IN ASCII OR UTF-8 FORMAT
254                $ascii = '';
255                $strlen_var = strlen($var);
256
257               /*
258                * Iterate over every character in the string,
259                * escaping with a slash or encoding to UTF-8 where necessary
260                */
261                for ($c = 0; $c < $strlen_var; ++$c) {
262
263                    $ord_var_c = ord($var{$c});
264
265                    switch (true) {
266                        case $ord_var_c == 0x08:
267                            $ascii .= '\b';
268                            break;
269                        case $ord_var_c == 0x09:
270                            $ascii .= '\t';
271                            break;
272                        case $ord_var_c == 0x0A:
273                            $ascii .= '\n';
274                            break;
275                        case $ord_var_c == 0x0C:
276                            $ascii .= '\f';
277                            break;
278                        case $ord_var_c == 0x0D:
279                            $ascii .= '\r';
280                            break;
281
282                        case $ord_var_c == 0x22:
283                        case $ord_var_c == 0x2F:
284                        case $ord_var_c == 0x5C:
285                            // double quote, slash, slosh
286                            $ascii .= '\\'.$var{$c};
287                            break;
288
289                        case (($ord_var_c >= 0x20) && ($ord_var_c <= 0x7F)):
290                            // characters U-00000000 - U-0000007F (same as ASCII)
291                            $ascii .= $var{$c};
292                            break;
293
294                        case (($ord_var_c & 0xE0) == 0xC0):
295                            // characters U-00000080 - U-000007FF, mask 110XXXXX
296                            // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
297                            $char = pack('C*', $ord_var_c, ord($var{$c + 1}));
298                            $c += 1;
299                            $utf16 = $this->utf82utf16($char);
300                            $ascii .= sprintf('\u%04s', bin2hex($utf16));
301                            break;
302
303                        case (($ord_var_c & 0xF0) == 0xE0):
304                            // characters U-00000800 - U-0000FFFF, mask 1110XXXX
305                            // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
306                            $char = pack('C*', $ord_var_c,
307                                         ord($var{$c + 1}),
308                                         ord($var{$c + 2}));
309                            $c += 2;
310                            $utf16 = $this->utf82utf16($char);
311                            $ascii .= sprintf('\u%04s', bin2hex($utf16));
312                            break;
313
314                        case (($ord_var_c & 0xF8) == 0xF0):
315                            // characters U-00010000 - U-001FFFFF, mask 11110XXX
316                            // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
317                            $char = pack('C*', $ord_var_c,
318                                         ord($var{$c + 1}),
319                                         ord($var{$c + 2}),
320                                         ord($var{$c + 3}));
321                            $c += 3;
322                            $utf16 = $this->utf82utf16($char);
323                            $ascii .= sprintf('\u%04s', bin2hex($utf16));
324                            break;
325
326                        case (($ord_var_c & 0xFC) == 0xF8):
327                            // characters U-00200000 - U-03FFFFFF, mask 111110XX
328                            // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
329                            $char = pack('C*', $ord_var_c,
330                                         ord($var{$c + 1}),
331                                         ord($var{$c + 2}),
332                                         ord($var{$c + 3}),
333                                         ord($var{$c + 4}));
334                            $c += 4;
335                            $utf16 = $this->utf82utf16($char);
336                            $ascii .= sprintf('\u%04s', bin2hex($utf16));
337                            break;
338
339                        case (($ord_var_c & 0xFE) == 0xFC):
340                            // characters U-04000000 - U-7FFFFFFF, mask 1111110X
341                            // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
342                            $char = pack('C*', $ord_var_c,
343                                         ord($var{$c + 1}),
344                                         ord($var{$c + 2}),
345                                         ord($var{$c + 3}),
346                                         ord($var{$c + 4}),
347                                         ord($var{$c + 5}));
348                            $c += 5;
349                            $utf16 = $this->utf82utf16($char);
350                            $ascii .= sprintf('\u%04s', bin2hex($utf16));
351                            break;
352                    }
353                }
354
355                return '"'.$ascii.'"';
356
357            case 'array':
358               /*
359                * As per JSON spec if any array key is not an integer
360                * we must treat the the whole array as an object. We
361                * also try to catch a sparsely populated associative
362                * array with numeric keys here because some JS engines
363                * will create an array with empty indexes up to
364                * max_index which can cause memory issues and because
365                * the keys, which may be relevant, will be remapped
366                * otherwise.
367                *
368                * As per the ECMA and JSON specification an object may
369                * have any string as a property. Unfortunately due to
370                * a hole in the ECMA specification if the key is a
371                * ECMA reserved word or starts with a digit the
372                * parameter is only accessible using ECMAScript's
373                * bracket notation.
374                */
375
376                // treat as a JSON object
377                if (is_array($var) && count($var) && (array_keys($var) !== range(0, sizeof($var) - 1))) {
378                    $properties = array_map(array($this, 'name_value'),
379                                            array_keys($var),
380                                            array_values($var));
381
382                    foreach($properties as $property) {
383                        if($this->isError($property)) {
384                            return $property;
385                        }
386                    }
387
388                    return '{' . join(',', $properties) . '}';
389                }
390
391                // treat it like a regular array
392                $elements = array_map(array($this, 'encode'), $var);
393
394                foreach($elements as $element) {
395                    if($this->isError($element)) {
396                        return $element;
397                    }
398                }
399
400                return '[' . join(',', $elements) . ']';
401
402            case 'object':
403                $vars = get_object_vars($var);
404
405                $properties = array_map(array($this, 'name_value'),
406                                        array_keys($vars),
407                                        array_values($vars));
408
409                foreach($properties as $property) {
410                    if($this->isError($property)) {
411                        return $property;
412                    }
413                }
414
415                return '{' . join(',', $properties) . '}';
416
417            default:
418                return ($this->use & SERVICES_JSON_SUPPRESS_ERRORS)
419                    ? 'null'
420                    : new Services_JSON_Error(gettype($var)." can not be encoded as JSON string");
421        }
422    }
423
424   /**
425    * array-walking function for use in generating JSON-formatted name-value pairs
426    *
427    * @param    string  $name   name of key to use
428    * @param    mixed   $value  reference to an array element to be encoded
429    *
430    * @return   string  JSON-formatted name-value pair, like '"name":value'
431    * @access   private
432    */
433    function name_value($name, $value)
434    {
435        $encoded_value = $this->encode($value);
436
437        if($this->isError($encoded_value)) {
438            return $encoded_value;
439        }
440
441        return $this->encode(strval($name)) . ':' . $encoded_value;
442    }
443
444   /**
445    * reduce a string by removing leading and trailing comments and whitespace
446    *
447    * @param    $str    string      string value to strip of comments and whitespace
448    *
449    * @return   string  string value stripped of comments and whitespace
450    * @access   private
451    */
452    function reduce_string($str)
453    {
454        $str = preg_replace(array(
455
456                // eliminate single line comments in '// ...' form
457                '#^\s*//(.+)$#m',
458
459                // eliminate multi-line comments in '/* ... */' form, at start of string
460                '#^\s*/\*(.+)\*/#Us',
461
462                // eliminate multi-line comments in '/* ... */' form, at end of string
463                '#/\*(.+)\*/\s*$#Us'
464
465            ), '', $str);
466
467        // eliminate extraneous space
468        return trim($str);
469    }
470
471   /**
472    * decodes a JSON string into appropriate variable
473    *
474    * @param    string  $str    JSON-formatted string
475    *
476    * @return   mixed   number, boolean, string, array, or object
477    *                   corresponding to given JSON input string.
478    *                   See argument 1 to Services_JSON() above for object-output behavior.
479    *                   Note that decode() always returns strings
480    *                   in ASCII or UTF-8 format!
481    * @access   public
482    */
483    function decode($str)
484    {
485        $str = $this->reduce_string($str);
486
487        switch (strtolower($str)) {
488            case 'true':
489                return true;
490
491            case 'false':
492                return false;
493
494            case 'null':
495                return null;
496
497            default:
498                $m = array();
499
500                if (is_numeric($str)) {
501                    // Lookie-loo, it's a number
502
503                    // This would work on its own, but I'm trying to be
504                    // good about returning integers where appropriate:
505                    // return (float)$str;
506
507                    // Return float or int, as appropriate
508                    return ((float)$str == (integer)$str)
509                        ? (integer)$str
510                        : (float)$str;
511
512                } elseif (preg_match('/^("|\').*(\1)$/s', $str, $m) && $m[1] == $m[2]) {
513                    // STRINGS RETURNED IN UTF-8 FORMAT
514                    $delim = substr($str, 0, 1);
515                    $chrs = substr($str, 1, -1);
516                    $utf8 = '';
517                    $strlen_chrs = strlen($chrs);
518
519                    for ($c = 0; $c < $strlen_chrs; ++$c) {
520
521                        $substr_chrs_c_2 = substr($chrs, $c, 2);
522                        $ord_chrs_c = ord($chrs{$c});
523
524                        switch (true) {
525                            case $substr_chrs_c_2 == '\b':
526                                $utf8 .= chr(0x08);
527                                ++$c;
528                                break;
529                            case $substr_chrs_c_2 == '\t':
530                                $utf8 .= chr(0x09);
531                                ++$c;
532                                break;
533                            case $substr_chrs_c_2 == '\n':
534                                $utf8 .= chr(0x0A);
535                                ++$c;
536                                break;
537                            case $substr_chrs_c_2 == '\f':
538                                $utf8 .= chr(0x0C);
539                                ++$c;
540                                break;
541                            case $substr_chrs_c_2 == '\r':
542                                $utf8 .= chr(0x0D);
543                                ++$c;
544                                break;
545
546                            case $substr_chrs_c_2 == '\\"':
547                            case $substr_chrs_c_2 == '\\\'':
548                            case $substr_chrs_c_2 == '\\\\':
549                            case $substr_chrs_c_2 == '\\/':
550                                if (($delim == '"' && $substr_chrs_c_2 != '\\\'') ||
551                                   ($delim == "'" && $substr_chrs_c_2 != '\\"')) {
552                                    $utf8 .= $chrs{++$c};
553                                }
554                                break;
555
556                            case preg_match('/\\\u[0-9A-F]{4}/i', substr($chrs, $c, 6)):
557                                // single, escaped unicode character
558                                $utf16 = chr(hexdec(substr($chrs, ($c + 2), 2)))
559                                       . chr(hexdec(substr($chrs, ($c + 4), 2)));
560                                $utf8 .= $this->utf162utf8($utf16);
561                                $c += 5;
562                                break;
563
564                            case ($ord_chrs_c >= 0x20) && ($ord_chrs_c <= 0x7F):
565                                $utf8 .= $chrs{$c};
566                                break;
567
568                            case ($ord_chrs_c & 0xE0) == 0xC0:
569                                // characters U-00000080 - U-000007FF, mask 110XXXXX
570                                //see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
571                                $utf8 .= substr($chrs, $c, 2);
572                                ++$c;
573                                break;
574
575                            case ($ord_chrs_c & 0xF0) == 0xE0:
576                                // characters U-00000800 - U-0000FFFF, mask 1110XXXX
577                                // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
578                                $utf8 .= substr($chrs, $c, 3);
579                                $c += 2;
580                                break;
581
582                            case ($ord_chrs_c & 0xF8) == 0xF0:
583                                // characters U-00010000 - U-001FFFFF, mask 11110XXX
584                                // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
585                                $utf8 .= substr($chrs, $c, 4);
586                                $c += 3;
587                                break;
588
589                            case ($ord_chrs_c & 0xFC) == 0xF8:
590                                // characters U-00200000 - U-03FFFFFF, mask 111110XX
591                                // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
592                                $utf8 .= substr($chrs, $c, 5);
593                                $c += 4;
594                                break;
595
596                            case ($ord_chrs_c & 0xFE) == 0xFC:
597                                // characters U-04000000 - U-7FFFFFFF, mask 1111110X
598                                // see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
599                                $utf8 .= substr($chrs, $c, 6);
600                                $c += 5;
601                                break;
602
603                        }
604
605                    }
606
607                    return $utf8;
608
609                } elseif (preg_match('/^\[.*\]$/s', $str) || preg_match('/^\{.*\}$/s', $str)) {
610                    // array, or object notation
611
612                    if ($str{0} == '[') {
613                        $stk = array(SERVICES_JSON_IN_ARR);
614                        $arr = array();
615                    } else {
616                        if ($this->use & SERVICES_JSON_LOOSE_TYPE) {
617                            $stk = array(SERVICES_JSON_IN_OBJ);
618                            $obj = array();
619                        } else {
620                            $stk = array(SERVICES_JSON_IN_OBJ);
621                            $obj = new stdClass();
622                        }
623                    }
624
625                    array_push($stk, array('what'  => SERVICES_JSON_SLICE,
626                                           'where' => 0,
627                                           'delim' => false));
628
629                    $chrs = substr($str, 1, -1);
630                    $chrs = $this->reduce_string($chrs);
631
632                    if ($chrs == '') {
633                        if (reset($stk) == SERVICES_JSON_IN_ARR) {
634                            return $arr;
635
636                        } else {
637                            return $obj;
638
639                        }
640                    }
641
642                    //print("\nparsing {$chrs}\n");
643
644                    $strlen_chrs = strlen($chrs);
645
646                    for ($c = 0; $c <= $strlen_chrs; ++$c) {
647
648                        $top = end($stk);
649                        $substr_chrs_c_2 = substr($chrs, $c, 2);
650
651                        if (($c == $strlen_chrs) || (($chrs{$c} == ',') && ($top['what'] == SERVICES_JSON_SLICE))) {
652                            // found a comma that is not inside a string, array, etc.,
653                            // OR we've reached the end of the character list
654                            $slice = substr($chrs, $top['where'], ($c - $top['where']));
655                            array_push($stk, array('what' => SERVICES_JSON_SLICE, 'where' => ($c + 1), 'delim' => false));
656                            //print("Found split at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
657
658                            if (reset($stk) == SERVICES_JSON_IN_ARR) {
659                                // we are in an array, so just push an element onto the stack
660                                array_push($arr, $this->decode($slice));
661
662                            } elseif (reset($stk) == SERVICES_JSON_IN_OBJ) {
663                                // we are in an object, so figure
664                                // out the property name and set an
665                                // element in an associative array,
666                                // for now
667                                $parts = array();
668                                
669                                if (preg_match('/^\s*(["\'].*[^\\\]["\'])\s*:\s*(\S.*),?$/Uis', $slice, $parts)) {
670                                    // "name":value pair
671                                    $key = $this->decode($parts[1]);
672                                    $val = $this->decode($parts[2]);
673
674                                    if ($this->use & SERVICES_JSON_LOOSE_TYPE) {
675                                        $obj[$key] = $val;
676                                    } else {
677                                        $obj->$key = $val;
678                                    }
679                                } elseif (preg_match('/^\s*(\w+)\s*:\s*(\S.*),?$/Uis', $slice, $parts)) {
680                                    // name:value pair, where name is unquoted
681                                    $key = $parts[1];
682                                    $val = $this->decode($parts[2]);
683
684                                    if ($this->use & SERVICES_JSON_LOOSE_TYPE) {
685                                        $obj[$key] = $val;
686                                    } else {
687                                        $obj->$key = $val;
688                                    }
689                                }
690
691                            }
692
693                        } elseif ((($chrs{$c} == '"') || ($chrs{$c} == "'")) && ($top['what'] != SERVICES_JSON_IN_STR)) {
694                            // found a quote, and we are not inside a string
695                            array_push($stk, array('what' => SERVICES_JSON_IN_STR, 'where' => $c, 'delim' => $chrs{$c}));
696                            //print("Found start of string at {$c}\n");
697
698                        } elseif (($chrs{$c} == $top['delim']) &&
699                                 ($top['what'] == SERVICES_JSON_IN_STR) &&
700                                 ((strlen(substr($chrs, 0, $c)) - strlen(rtrim(substr($chrs, 0, $c), '\\'))) % 2 != 1)) {
701                            // found a quote, we're in a string, and it's not escaped
702                            // we know that it's not escaped becase there is _not_ an
703                            // odd number of backslashes at the end of the string so far
704                            array_pop($stk);
705                            //print("Found end of string at {$c}: ".substr($chrs, $top['where'], (1 + 1 + $c - $top['where']))."\n");
706
707                        } elseif (($chrs{$c} == '[') &&
708                                 in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) {
709                            // found a left-bracket, and we are in an array, object, or slice
710                            array_push($stk, array('what' => SERVICES_JSON_IN_ARR, 'where' => $c, 'delim' => false));
711                            //print("Found start of array at {$c}\n");
712
713                        } elseif (($chrs{$c} == ']') && ($top['what'] == SERVICES_JSON_IN_ARR)) {
714                            // found a right-bracket, and we're in an array
715                            array_pop($stk);
716                            //print("Found end of array at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
717
718                        } elseif (($chrs{$c} == '{') &&
719                                 in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) {
720                            // found a left-brace, and we are in an array, object, or slice
721                            array_push($stk, array('what' => SERVICES_JSON_IN_OBJ, 'where' => $c, 'delim' => false));
722                            //print("Found start of object at {$c}\n");
723
724                        } elseif (($chrs{$c} == '}') && ($top['what'] == SERVICES_JSON_IN_OBJ)) {
725                            // found a right-brace, and we're in an object
726                            array_pop($stk);
727                            //print("Found end of object at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
728
729                        } elseif (($substr_chrs_c_2 == '/*') &&
730                                 in_array($top['what'], array(SERVICES_JSON_SLICE, SERVICES_JSON_IN_ARR, SERVICES_JSON_IN_OBJ))) {
731                            // found a comment start, and we are in an array, object, or slice
732                            array_push($stk, array('what' => SERVICES_JSON_IN_CMT, 'where' => $c, 'delim' => false));
733                            $c++;
734                            //print("Found start of comment at {$c}\n");
735
736                        } elseif (($substr_chrs_c_2 == '*/') && ($top['what'] == SERVICES_JSON_IN_CMT)) {
737                            // found a comment end, and we're in one now
738                            array_pop($stk);
739                            $c++;
740
741                            for ($i = $top['where']; $i <= $c; ++$i)
742                                $chrs = substr_replace($chrs, ' ', $i, 1);
743
744                            //print("Found end of comment at {$c}: ".substr($chrs, $top['where'], (1 + $c - $top['where']))."\n");
745
746                        }
747
748                    }
749
750                    if (reset($stk) == SERVICES_JSON_IN_ARR) {
751                        return $arr;
752
753                    } elseif (reset($stk) == SERVICES_JSON_IN_OBJ) {
754                        return $obj;
755
756                    }
757
758                }
759        }
760    }
761    
762    function isError($data, $code = null)
763    {
764        if (is_object($data) && (get_class($data) == 'services_json_error' ||
765                                 is_subclass_of($data, 'services_json_error'))) {
766            return true;
767        }
768
769        return false;
770    }
771}
772
773class CF7CM_Services_JSON_Error
774{
775    function CF7CM_Services_JSON_Error($message = 'unknown error', $code = null,
776                                 $mode = null, $options = null, $userinfo = null)
777    {
778
779    }
780}
781    
782?>