function toJSON($arr)
{
$json_str = "";
if (is_array($arr)) {
$pure_array = true;
$array_length = count($arr);
for ($i = 0; $i < $array_length; $i++) {
if (!isset($arr[$i])) {
$pure_array = false;
break;
}
}
if ($pure_array) {
$json_str = "[";
$temp = array();
for ($i = 0; $i < $array_length; $i++) {
$temp[] = sprintf("%s", toJSON($arr[$i]));
}
$json_str .= implode(",", $temp);
$json_str .= "]";
} else {
$json_str = "{";
$temp = array();
foreach ($arr as $key => $value) {
$temp[] = sprintf("\"%s\":%s", $key, toJSON($value));
}
$json_str .= implode(",", $temp);
$json_str .= "}";
}
} else {
if (is_string($arr)) {
$json_str = "\"" . json_encode_string($arr) . "\"";
} else {
if (is_numeric($arr)) {
$json_str = $arr;
} else {
if (is_null($arr)) {
$json_str = 'null';
} else {
$json_str = "\"" . json_encode_string($arr) . "\"";
}
}
}
}
return $json_str;
}
/**
* This function is required for older PHP servers to provide equivalent
* behavior with json_encode($subject) which is not available prior to PHP 5.2
* (JSON: JavaScript Over Network; used for serialized JS objects)
*
* @param $subject mixed; scalar or array (indexed or associative)
* @return JSON-encoded string
*/
function php_json_encode(&$subject)
{
$result = "";
if (is_array($subject)) {
$indexed = true;
$array_length = count($subject);
for ($i = 0; $i < $array_length; $i++) {
if (!array_key_exists($i, $subject)) {
$indexed = false;
break;
}
}
if ($indexed) {
$result = "[";
$buffer = array();
for ($i = 0; $i < $array_length; $i++) {
$buffer[] = sprintf("%s", php_json_encode($subject[$i]));
}
$result .= implode(",", $buffer);
$result .= "]";
} else {
$result = "{";
$buffer = array();
foreach ($subject as $key => $value) {
$buffer[] = sprintf("\"%s\":%s", $key, php_json_encode($value));
}
$result .= implode(",", $buffer);
$result .= "}";
}
} else {
if (is_numeric($subject)) {
$result = $subject;
} else {
if (is_object($subject)) {
$result = php_json_encode(get_object_vars($subject));
} else {
$result = "\"" . json_encode_string($subject) . "\"";
}
}
}
return $result;
}
preg_replace('#:[0-9]+$#', '', $_SERVER['HTTP_HOST']) .
($http_port === 80 || $http_port === 443 ? '' : (
':' . $_SERVER['SERVER_PORT']
)) .
dirname($_SERVER['SCRIPT_NAME']). '/' .
$locationFile
),
');';
exit;
} else {
$response = array('error' => 'Failed to rename the temporary file');
}
}
}
if(is_array($tmp) && isset($tmp['location']) && file_exists($tmp['location'])) {
//remove temporary file if an error occurred
unlink($tmp['location']);
}
//errors
setHeaders(true);//no-cache
remove_old_files();
echo $param_callback, '(',
json_encode_string(
'error: html2canvas-proxy-php: ' . $response['error']
),
');';
$response = array('error' => 'Download the file was made, but there was some problem and now the file is empty, try again');
} else {
$response['mime'] = str_replace(array('windows-bmp', 'ms-bmp'), 'bmp', str_replace('jpeg', 'jpg', str_replace('xhtml+xml', 'xhtml', str_replace(array('image/', 'text/', 'application/'), '', $response['mime']))));
$locationFile = preg_replace('#[.][0-9_]+$#', '.' . $response['mime'], $tmp['location']);
if (file_exists($locationFile)) {
unlink($locationFile);
}
if (rename($tmp['location'], $locationFile)) {
//success
$tmp = $response = null;
//set cache
setHeaders(false);
remove_old_files();
echo $param_callback, '(', json_encode_string(($http_port === 443 ? 'https://' : 'http://') . preg_replace('#:[0-9]+$#', '', $_SERVER['HTTP_HOST']) . ($http_port === 80 || $http_port === 443 ? '' : ':' . $_SERVER['SERVER_PORT']) . dirname($_SERVER['SCRIPT_NAME']) . '/' . $locationFile), ');';
exit;
} else {
$response = array('error' => 'Failed to rename the temporary file');
}
}
}
}
if (is_array($tmp) && isset($tmp['location']) && file_exists($tmp['location'])) {
//remove temporary file if an error occurred
unlink($tmp['location']);
}
//errors
setHeaders(true);
//no-cache
remove_old_files();
echo $param_callback, '(', json_encode_string('error: html2canvas-proxy-php: ' . $response['error']), ');';
function json_encode($var, $obj = FALSE)
{
#-- prepare JSON string
$json = "";
#-- add array entries
if (is_array($var) || ($obj = is_object($var))) {
#-- check if array is associative
if (!$obj) {
foreach ((array) $var as $i => $v) {
if (!is_int($i)) {
$obj = 1;
break;
}
}
}
#-- concat invidual entries
foreach ((array) $var as $i => $v) {
$json .= ($json ? "," : "") . ($obj ? "\"{$i}\":" : "") . json_encode($v);
// value
}
#-- enclose into braces or brackets
$json = $obj ? "{" . $json . "}" : "[" . $json . "]";
} elseif (is_string($var)) {
if (!utf8_decode($var)) {
$var = utf8_encode($var);
}
$var = str_replace(array("\\", "\"", "/", "\\b", "\f", "\n", "\r", "\t"), array("\\\\", "\\\"", "\\/", "\\b", "\\f", "\\n", "\\r", "\\t"), $var);
$var = json_encode_string($var);
$json = '"' . $var . '"';
//@COMPAT: for fully-fully-compliance $var = preg_replace("/[\000-\037]/", "", $var);
} elseif (is_bool($var)) {
$json = $var ? "true" : "false";
} elseif ($var === NULL) {
$json = "null";
} elseif (is_int($var) || is_float($var)) {
$json = "{$var}";
} else {
trigger_error("json_encode: don't know what a '" . gettype($var) . "' is.", E_USER_ERROR);
}
#-- done
return $json;
}
function out_json($array_data = array())
{
$array_temp = array();
foreach ($array_data as $k => $v) {
$array_temp[] = '"' . json_encode_string($k) . '":"' . json_encode_string($v) . '"';
}
$string_temp = join(",\r\n\t", $array_temp);
die("{\r\n\t" . $string_temp . "\r\n}");
}