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tags/6.0.3
llgoer 3 years ago
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<?php
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */

/**
* Converts to and from JSON format.
*
* JSON (JavaScript Object Notation) is a lightweight data-interchange
* format. It is easy for humans to read and write. It is easy for machines
* to parse and generate. It is based on a subset of the JavaScript
* Programming Language, Standard ECMA-262 3rd Edition - December 1999.
* This feature can also be found in Python. JSON is a text format that is
* completely language independent but uses conventions that are familiar
* to programmers of the C-family of languages, including C, C++, C#, Java,
* JavaScript, Perl, TCL, and many others. These properties make JSON an
* ideal data-interchange language.
*
* This package provides a simple encoder and decoder for JSON notation. It
* is intended for use with client-side Javascript applications that make
* use of HTTPRequest to perform server communication functions - data can
* be encoded into JSON notation for use in a client-side javascript, or
* decoded from incoming Javascript requests. JSON format is native to
* Javascript, and can be directly eval()'ed with no further parsing
* overhead
*
* All strings should be in ASCII or UTF-8 format!
*
* LICENSE: Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met: Redistributions of source code must retain the
* above copyright notice, this list of conditions and the following
* disclaimer. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
* USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*
* @category
* @package Services_JSON
* @author Michal Migurski <mike-json@teczno.com>
* @author Matt Knapp <mdknapp[at]gmail[dot]com>
* @author Brett Stimmerman <brettstimmerman[at]gmail[dot]com>
* @copyright 2005 Michal Migurski
* @version CVS: $Id: JSON.php,v 1.31 2006/06/28 05:54:17 migurski Exp $
* @license http://www.opensource.org/licenses/bsd-license.php
* @link http://pear.php.net/pepr/pepr-proposal-show.php?id=198
*/

/**
* Marker constant for Services_JSON::decode(), used to flag stack state
*/
define('SERVICES_JSON_SLICE', 1);

/**
* Marker constant for Services_JSON::decode(), used to flag stack state
*/
define('SERVICES_JSON_IN_STR', 2);

/**
* Marker constant for Services_JSON::decode(), used to flag stack state
*/
define('SERVICES_JSON_IN_ARR', 3);

/**
* Marker constant for Services_JSON::decode(), used to flag stack state
*/
define('SERVICES_JSON_IN_OBJ', 4);

/**
* Marker constant for Services_JSON::decode(), used to flag stack state
*/
define('SERVICES_JSON_IN_CMT', 5);

/**
* Behavior switch for Services_JSON::decode()
*/
define('SERVICES_JSON_LOOSE_TYPE', 16);

/**
* Behavior switch for Services_JSON::decode()
*/
define('SERVICES_JSON_SUPPRESS_ERRORS', 32);

/**
* Converts to and from JSON format.
*
* Brief example of use:
*
* <code>
* // create a new instance of Services_JSON
* $json = new Services_JSON();
*
* // convert a complexe value to JSON notation, and send it to the browser
* $value = array('foo', 'bar', array(1, 2, 'baz'), array(3, array(4)));
* $output = $json->encode($value);
*
* print($output);
* // prints: ["foo","bar",[1,2,"baz"],[3,[4]]]
*
* // accept incoming POST data, assumed to be in JSON notation
* $input = file_get_contents('php://input', 1000000);
* $value = $json->decode($input);
* </code>
*/
class Services_JSON
{
/**
* constructs a new JSON instance
*
* @param int $use object behavior flags; combine with boolean-OR
*
* possible values:
* - SERVICES_JSON_LOOSE_TYPE: loose typing.
* "{...}" syntax creates associative arrays
* instead of objects in decode().
* - SERVICES_JSON_SUPPRESS_ERRORS: error suppression.
* Values which can't be encoded (e.g. resources)
* appear as NULL instead of throwing errors.
* By default, a deeply-nested resource will
* bubble up with an error, so all return values
* from encode() should be checked with isError()
*/
function Services_JSON($use = 0)
{
$this->use = $use;
}

/**
* convert a string from one UTF-16 char to one UTF-8 char
*
* Normally should be handled by mb_convert_encoding, but
* provides a slower PHP-only method for installations
* that lack the multibye string extension.
*
* @param string $utf16 UTF-16 character
* @return string UTF-8 character
* @access private
*/
function utf162utf8($utf16)
{
// oh please oh please oh please oh please oh please
if(function_exists('mb_convert_encoding')) {
return mb_convert_encoding($utf16, 'UTF-8', 'UTF-16');
}

$bytes = (ord($utf16{0}) << 8) | ord($utf16{1});

switch(true) {
case ((0x7F & $bytes) == $bytes):
// this case should never be reached, because we are in ASCII range
// see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
return chr(0x7F & $bytes);

case (0x07FF & $bytes) == $bytes:
// return a 2-byte UTF-8 character
// see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
return chr(0xC0 | (($bytes >> 6) & 0x1F))
. chr(0x80 | ($bytes & 0x3F));

case (0xFFFF & $bytes) == $bytes:
// return a 3-byte UTF-8 character
// see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
return chr(0xE0 | (($bytes >> 12) & 0x0F))
. chr(0x80 | (($bytes >> 6) & 0x3F))
. chr(0x80 | ($bytes & 0x3F));
}

// ignoring UTF-32 for now, sorry
return '';
}

/**
* convert a string from one UTF-8 char to one UTF-16 char
*
* Normally should be handled by mb_convert_encoding, but
* provides a slower PHP-only method for installations
* that lack the multibye string extension.
*
* @param string $utf8 UTF-8 character
* @return string UTF-16 character
* @access private
*/
function utf82utf16($utf8)
{
// oh please oh please oh please oh please oh please
if(function_exists('mb_convert_encoding')) {
return mb_convert_encoding($utf8, 'UTF-16', 'UTF-8');
}

switch(strlen($utf8)) {
case 1:
// this case should never be reached, because we are in ASCII range
// see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
return $utf8;

case 2:
// return a UTF-16 character from a 2-byte UTF-8 char
// see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
return chr(0x07 & (ord($utf8{0}) >> 2))
. chr((0xC0 & (ord($utf8{0}) << 6))
| (0x3F & ord($utf8{1})));

case 3:
// return a UTF-16 character from a 3-byte UTF-8 char
// see: http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
return chr((0xF0 & (ord($utf8{0}) << 4))
| (0x0F & (ord($utf8{1}) >> 2)))
. chr((0xC0 & (ord($utf8{1}) << 6))
| (0x7F & ord($utf8{2})));
}

// ignoring UTF-32 for now, sorry
return '';
}

/**
* encodes an arbitrary variable into JSON format
*
* @param mixed $var any number, boolean, string, array, or object to be encoded.
* see argument 1 to Services_JSON() above for array-parsing behavior.
* if var is a strng, note that encode() always expects it
* to be in ASCII or UTF-8 format!
*
* @return mixed JSON string representation of input var or an error if a problem occurs
* @access public
*/
function encode($var)
{
switch (gettype($var)) {
case 'boolean':
return $var ? 'true' : 'false';

case 'NULL':
return 'null';

case 'integer':
return (int) $var;

case 'double':
case 'float':
return (float) $var;

case 'string':
// STRINGS ARE EXPECTED TO BE IN ASCII OR UTF-8 FORMAT
$ascii = '';
$strlen_var = strlen($var);

/*
* Iterate over every character in the string,
* escaping with a slash or encoding to UTF-8 where necessary
*/
for ($c = 0; $c < $strlen_var; ++$c) {

$ord_var_c = ord($var{$c});

switch (true) {
case $ord_var_c == 0x08:
$ascii .= '\b';
break;
case $ord_var_c == 0x09:
$ascii .= '\t';
break;
case $ord_var_c == 0x0A:
$ascii .= '\n';
break;
case $ord_var_c == 0x0C:
$ascii .= '\f';
break;
case $ord_var_c == 0x0D:
$ascii .= '\r';
break;

case $ord_var_c == 0x22:
case $ord_var_c == 0x2F:
case $ord_var_c == 0x5C:
// double quote, slash, slosh
$ascii .= '\\'.$var{$c};
break;

case (($ord_var_c >= 0x20) && ($ord_var_c <= 0x7F)):
// characters U-00000000 - U-0000007F (same as ASCII)
$ascii .= $var{$c};
break;

case (($ord_var_c & 0xE0) == 0xC0):
// characters U-00000080 - U-000007FF, mask 110XXXXX
// see http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
$char = pack('C*', $ord_var_c, ord($var{$c + 1}));
$c += 1;
$utf16 = $this->utf82utf16($char);
$ascii .= sprintf('\u%04s', bin2hex($utf16));
break;

case (($ord_var_c & 0xF0) == 0xE0):
// characters U-00000800 - U-0000FFFF, mask 1110XXXX
// 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}));
$c += 2;
$utf16 = $this->utf82utf16($char);
$ascii .= sprintf('\u%04s', bin2hex($utf16));
break;

case (($ord_var_c & 0xF8) == 0xF0):
// characters U-00010000 - U-001FFFFF, mask 11110XXX
// 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}));
$c += 3;
$utf16 = $this->utf82utf16($char);
$ascii .= sprintf('\u%04s', bin2hex($utf16));
break;

case (($ord_var_c & 0xFC) == 0xF8):
// characters U-00200000 - U-03FFFFFF, mask 111110XX
// 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}));
$c += 4;
$utf16 = $this->utf82utf16($char);
$ascii .= sprintf('\u%04s', bin2hex($utf16));
break;

case (($ord_var_c & 0xFE) == 0xFC):
// 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, $code);
} else
*/
if (is_object($data) && (get_class($data) == 'services_json_error' ||
is_subclass_of($data, 'services_json_error'))) {
return true;
}

return false;
}
}


/**
* @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)
{

}
}


?>

+ 0
- 185
src/include/taglib/json.lib.php View File

@@ -1,185 +0,0 @@
<?php
if(!defined('DEDEINC'))
{
exit("Request Error!");
}
require_once(DEDEINC.'/json.class.php');
function lib_json(&$ctag,&$refObj)
{
global $dsql,$sqlCt,$cfg_soft_lang;
$attlist="url|";
FillAttsDefault($ctag->CAttribute->Items,$attlist);
extract($ctag->CAttribute->Items, EXTR_SKIP);
$Innertext = trim($ctag->GetInnerText());
if($url=='' || $Innertext=='') return '';
$ctp = new DedeTagParse();
$ctp->SetNameSpace('field','[',']');
$ctp->LoadSource($Innertext);
$mcache = new MiniCache;
$GLOBALS['autoindex'] = 0;
$chash = md5($url);
if(!$row = $mcache->Get($chash))
{
$content = @file_get_contents($url);
$json = new Services_JSON(SERVICES_JSON_LOOSE_TYPE);
$row = $json->decode($content);
if($cfg_soft_lang != 'utf-8')
{
$row = AutoCharset($row, 'utf-8', 'gb2312');
}
$mcache->Save($chash, $row, $cache);
}
$revalue = "";
foreach($row as $key => $value)
{
$GLOBALS['autoindex']++;
foreach($ctp->CTags as $tagid=>$ctag)
{
if($ctag->GetName()=='array')
{
$ctp->Assign($tagid,$value);
}
else
{
if( !empty($value[$ctag->GetName()]))
{
$ctp->Assign($tagid,$value[$ctag->GetName()]);
} else {
$ctp->Assign($tagid,"");
}
}
}
$revalue .= $ctp->GetResult();
}
return $revalue;
}
// 一个简单的文件缓存类
class MiniCache
{
var $_cache_path;
function __construct()
{
$this->_cache_path = DEDEDATA.'/cache/json/';
}
// 获取缓冲
function Get($id)
{
if ( ! file_exists($this->_cache_path.$id))
{
return FALSE;
}
$data = $this->_ReadFile($this->_cache_path.$id);
$data = unserialize($data);
if (time() > $data['time'] + $data['ttl'])
{
unlink($this->_cache_path.$id);
return FALSE;
}
return $data['data'];
}
// 清除缓存
function Clean()
{
return $this->_DeleteFiles($this->_cache_path);
}
// 保存缓冲
function Save($id, $data, $ttl = 60)
{
$contents = array(
'time' => time(),
'ttl' => $ttl,
'data' => $data
);
if (PutFile($this->_cache_path.$id, serialize($contents)))
{
@chmod($this->_cache_path.$id, 0777);
return TRUE;
}
return FALSE;
}
// 删除缓冲
function Delete($id)
{
return unlink($this->_cache_path.$id);
}
function _DeleteFiles($path, $del_dir = FALSE, $level = 0)
{
// Trim the trailing slash
$path = rtrim($path, DIRECTORY_SEPARATOR);
if ( ! $current_dir = @opendir($path))
{
return FALSE;
}
while(FALSE !== ($filename = @readdir($current_dir)))
{
if ($filename != "." and $filename != "..")
{
if (is_dir($path.DIRECTORY_SEPARATOR.$filename))
{
// Ignore empty folders
if (substr($filename, 0, 1) != '.')
{
delete_files($path.DIRECTORY_SEPARATOR.$filename, $del_dir, $level + 1);
}
}
else
{
unlink($path.DIRECTORY_SEPARATOR.$filename);
}
}
}
@closedir($current_dir);
if ($del_dir == TRUE AND $level > 0)
{
return @rmdir($path);
}
return TRUE;
}
function _ReadFile($file)
{
if ( ! file_exists($file)) return FALSE;
if (function_exists('file_get_contents')) return file_get_contents($file);
if ( ! $fp = @fopen($file, FOPEN_READ)) return FALSE;
flock($fp, LOCK_SH);
$data = '';
if (filesize($file) > 0) $data =& fread($fp, filesize($file));
flock($fp, LOCK_UN);
fclose($fp);
return $data;
}
}

+ 0
- 4
src/templets/system/asks.htm View File

@@ -1,4 +0,0 @@
<dd>
<span class="tclass">[<a href='[field:typeurl/]'>[field:tidname/]</a>]</span>
<span class="tlink"><a href="[field:url/]">[field:title/]</a></span>
</dd>

+ 0
- 8
src/templets/system/bookcontentlist.htm View File

@@ -1,8 +0,0 @@
<table width="100%" border="0" cellspacing="2" cellpadding="2">
<tr>
<td width='40%'>
[[field:cataloglink/]] [field:booklink/]</td>
<td width='40%'>[field:contentlink/]</td>
<td width='20%'>[field:lastpost function="GetDateMk(@me)"/]</td>
</tr>
</table>

+ 0
- 1
src/templets/system/booklist.htm View File

@@ -1 +0,0 @@
<a href='[field:bookurl /]'>[field:bookname /]</a><br />

+ 0
- 4
src/templets/system/groups.htm View File

@@ -1,4 +0,0 @@
<li>
<span><img style="visibility: inherit;" title="[field:groupname/]" src="[field:icon/]" /></span>
<span><a href="[field:url/]" title="[field:groupname/]" target="_blank">[field:groupname/]</a></span>
</li>

+ 0
- 4
src/templets/system/groupthreads.htm View File

@@ -1,4 +0,0 @@
<li>
<a href='[field:groupurl/]' target="_blank">[[field:groupname function="cn_substr(@me,10)"/]]</a>
<a href="[field:url/]" title="[field:subject/]" target="_blank">[field:subject/]</a>([field:lastpost function="GetDateMk('@me')"/])
</li>

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