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<?php
/**
* This file contains the code for the SOAP server.
*
* PHP versions 4 and 5
*
* LICENSE: This source file is subject to version 2.02 of the PHP license,
* that is bundled with this package in the file LICENSE, and is available at
* through the world-wide-web at http://www.php.net/license/2_02.txt. If you
* did not receive a copy of the PHP license and are unable to obtain it
* through the world-wide-web, please send a note to license@php.net so we can
* mail you a copy immediately.
*
* @category Web Services
* @package SOAP
* @author Dietrich Ayala <dietrich@ganx4.com> Original Author
* @author Shane Caraveo <Shane@Caraveo.com> Port to PEAR and more
* @author Chuck Hagenbuch <chuck@horde.org> Maintenance
* @author Jan Schneider <jan@horde.org> Maintenance
* @copyright 2003-2005 The PHP Group
* @license http://www.php.net/license/2_02.txt PHP License 2.02
* @link http://pear.php.net/package/SOAP
*/
require_once 'SOAP/Base.php';
require_once 'SOAP/Fault.php';
require_once 'SOAP/Parser.php';
require_once 'SOAP/Value.php';
require_once 'SOAP/WSDL.php';
/**
* SOAP Server Class
*
* Originaly based on SOAPx4 by Dietrich Ayala
* http://dietrich.ganx4.com/soapx4
*
* @access public
* @package SOAP
* @author Shane Caraveo <shane@php.net> Conversion to PEAR and updates
* @author Dietrich Ayala <dietrich@ganx4.com> Original Author
*/
class SOAP_Server extends SOAP_Base
{
/**
*
* @var array
*/
var $dispatch_map = array(); // create empty dispatch map
var $dispatch_objects = array();
var $soapobject = null;
var $call_methodname = null;
var $callHandler = null;
var $callValidation = true;
/**
* A list of headers that are going to be sent back to the client.
*
* @var array
*/
var $headers = array();
/**
*
* @var string
*/
var $request = '';
/**
*
* @var string XML-Encoding
*/
var $xml_encoding = SOAP_DEFAULT_ENCODING;
var $response_encoding = 'UTF-8';
var $result = 'successful'; // for logging interop results to db
var $endpoint = ''; // the uri to ME!
var $service = ''; //soapaction header
var $method_namespace = null;
/**
* Options.
*
* @var array
*/
var $_options = array('use' => 'encoded',
'style' => 'rpc',
'parameters' => 0,
'http_status_success' => '200 OK',
'http_status_fault' => '500 SOAP Fault');
function SOAP_Server($options = null)
{
ini_set('track_errors', 1);
parent::SOAP_Base('Server');
if (is_array($options)) {
if (isset($options['use'])) {
$this->_options['use'] = $options['use'];
}
if (isset($options['style'])) {
$this->_options['style'] = $options['style'];
}
if (isset($options['parameters'])) {
$this->_options['parameters'] = $options['parameters'];
}
}
// assume we encode with section 5
$this->_section5 = true;
if ($this->_options['use']=='literal') {
$this->_section5 = false;
}
}
/**
* Error handler for errors that happen in proxied methods.
*
* To always return a valid SOAP response even on errors that don't happen
* in this code, the errors are catched, transformed to a SOAP fault and
* immediately sent to the client.
*
* @see http://www.php.net/set_error_handler
*/
function _errorHandler($errno, $errmsg, $filename, $linenum, $vars)
{
/* The error handler should ignore '0' errors, eg. hidden by @ - see
* the set_error_handler manual page. (thanks to Alan Knowles). */
if (!$errno || !error_reporting() || $errno == E_NOTICE ||
(defined('E_STRICT') && $errno == constant('E_STRICT'))) {
return false;
}
$this->fault =& new SOAP_Fault($errmsg, 'Server', 'PHP', "Errno: $errno\nFilename: $filename\nLineno: $linenum\n");
$this->_sendResponse();
exit;
}
function _getContentEncoding($content_type)
{
/* Get the character encoding of the incoming request treat incoming
* data as UTF-8 if no encoding set. */
$this->xml_encoding = 'UTF-8';
if (strpos($content_type, '=')) {
$enc = strtoupper(str_replace('"', '', substr(strstr($content_type, '='), 1)));
if (!in_array($enc, $this->_encodings)) {
return false;
}
$this->xml_encoding = $enc;
}
return true;
}
/**
* Parses the request and posts or returns the response.
*
* @param string $data The SOAP request data.
* @param string $endpoint The service endpoint. Determined automatically
* if left empty.
* @param boolean $test
* @param boolean $return Whether to return the SOAP response data
* instead of sending it to the client.
*/
function service($data, $endpoint = '', $test = false, $return = false)
{
$response = null;
$attachments = array();
$useEncoding = 'DIME';
/* Figure out our endpoint. */
$this->endpoint = $endpoint;
if (!$test && !$this->endpoint) {
/* We'll try to build our endpoint. */
$this->endpoint = 'http://' . $_SERVER['SERVER_NAME'];
if ($_SERVER['SERVER_PORT']) {
$this->endpoint .= ':' . $_SERVER['SERVER_PORT'];
}
$this->endpoint .= $_SERVER['SCRIPT_NAME'];
}
/* Get the character encoding of the incoming request treat incoming
* data as UTF-8 if no encoding set. */
if (isset($_SERVER['CONTENT_TYPE'])) {
if (strcasecmp($_SERVER['CONTENT_TYPE'], 'application/dime') == 0) {
$this->_decodeDIMEMessage($data, $headers, $attachments);
$useEncoding = 'DIME';
} elseif (stristr($_SERVER['CONTENT_TYPE'], 'multipart/related')) {
/* This is a mime message, let's decode it. */
$data = 'Content-Type: ' .
stripslashes($_SERVER['CONTENT_TYPE']) .
"\r\n\r\n" . $data;
$this->_decodeMimeMessage($data, $headers, $attachments);
$useEncoding = 'Mime';
}
if (!isset($headers['content-type'])) {
$headers['content-type'] = stripslashes($_SERVER['CONTENT_TYPE']);
}
if (!$this->fault &&
!$this->_getContentEncoding($headers['content-type'])) {
$this->xml_encoding = SOAP_DEFAULT_ENCODING;
/* Found encoding we don't understand; return a fault. */
$this->_raiseSoapFault('Unsupported encoding, use one of ISO-8859-1, US-ASCII, UTF-8', '', '', 'Server');
}
}
/* If this is not a POST with Content-Type text/xml, try to return a
* WSDL file. */
if (!$this->fault && !$test &&
($_SERVER['REQUEST_METHOD'] != 'POST' ||
strncmp($headers['content-type'], 'text/xml', 8) != 0)) {
/* This is not possibly a valid SOAP request, try to return a WSDL
* file. */
$this->_raiseSoapFault('Invalid SOAP request, must be POST with content-type: text/xml, got: ' . (isset($headers['content-type']) ? $headers['content-type'] : 'Nothing!'), '', '', 'Server');
}
if (!$this->fault) {
/* $response is a SOAP_Msg object. */
$soap_msg = $this->parseRequest($data, $attachments);
/* Handle Mime or DIME encoding. */
/* TODO: DIME decoding should move to the transport, do it here
* for now and for ease of getting it done. */
if (count($this->_attachments)) {
if ($useEncoding == 'Mime') {
$soap_msg = $this->_makeMimeMessage($soap_msg);
} else {
// default is dime
$soap_msg = $this->_makeDIMEMessage($soap_msg);
$this->headers['Content-Type'] = 'application/dime';
}
if (PEAR::isError($soap_msg)) {
return $this->_raiseSoapFault($soap_msg);
}
}
if (is_array($soap_msg)) {
$response = $soap_msg['body'];
if (count($soap_msg['headers'])) {
$this->headers = $soap_msg['headers'];
}
} else {
$response = $soap_msg;
}
}
if ($return) {
if ($this->fault) {
$response = $this->fault->message();
}
return $response;
}
$this->_sendResponse($response);
}
/**
* Sends the final HTTP response to the client, including the HTTP header
* and the HTTP body.
*
* If an error happened, it returns a SOAP fault instead of the response
* body.
*
* @param string $response The response body.
*/
function _sendResponse($response = '')
{
/* Make distinction between the different SAPIs, running PHP as CGI or
* as a module. */
if (stristr(php_sapi_name(), 'cgi') === 0) {
$hdrs_type = 'Status:';
} else {
$hdrs_type = 'HTTP/1.1';
}
if ($this->fault) {
$hdrs = $hdrs_type . ' ' . $this->_options['http_status_fault'] . "\r\n";
$response = $this->fault->message($this->response_encoding);
} else {
$hdrs = $hdrs_type . ' ' . $this->_options['http_status_success'] . "\r\n";
}
header($hdrs);
$this->headers['Server'] = SOAP_LIBRARY_NAME;
if (!isset($this->headers['Content-Type'])) {
$this->headers['Content-Type'] = 'text/xml; charset=' .
$this->response_encoding;
}
$this->headers['Content-Length'] = strlen($response);
foreach ($this->headers as $k => $v) {
header("$k: $v");
$hdrs .= "$k: $v\r\n";
}
$this->response = $hdrs . "\r\n" . $response;
print $response;
}
function &callMethod($methodname, &$args)
{
if ($this->callHandler) {
$ret = @call_user_func_array($this->callHandler, array($methodname, $args));
return $ret;
}
set_error_handler(array($this, '_errorHandler'));
if ($args) {
/* Call method with parameters. */
if (isset($this->soapobject) && is_object($this->soapobject)) {
$ret = call_user_func_array(array(&$this->soapobject, $methodname), $args);
} else {
$ret = call_user_func_array($methodname, $args);
}
} else {
/* Call method withour parameters. */
if (is_object($this->soapobject)) {
$ret = call_user_func(array(&$this->soapobject, $methodname));
} else {
$ret = call_user_func($methodname);
}
}
restore_error_handler();
return $ret;
}
/**
* Creates SOAP_Value objects with return values from method.
* Uses method signature to determine type.
*
* @param mixed $method_response The result(s).
* @param array|string $type The type(s) of the return value(s).
* @param string $return_name The name of the return value.
* @param string $namespace The namespace of the return value.
*
* @return array List of SOAP_Value objects.
*/
function buildResult(&$method_response, &$return_type,
$return_name = 'return', $namespace = '')
{
if (is_a($method_response, 'SOAP_Value')) {
$return_val = array($method_response);
} else {
if (is_array($return_type) && is_array($method_response)) {
$i = 0;
foreach ($return_type as $key => $type) {
if (is_numeric($key)) {
$key = 'item';
}
if (is_a($method_response[$i], 'SOAP_Value')) {
$return_val[] =& $method_response[$i++];
} else {
$qn =& new QName($key, $namespace);
$return_val[] =& new SOAP_Value($qn->fqn(), $type, $method_response[$i++]);
}
}
} else {
if (is_array($return_type)) {
$keys = array_keys($return_type);
if (!is_numeric($keys[0])) {
$return_name = $keys[0];
}
$values = array_values($return_type);
$return_type = $values[0];
}
$qn =& new QName($return_name, $namespace);
$return_val = array(new SOAP_Value($qn->fqn(), $return_type, $method_response));
}
}
return $return_val;
}
function parseRequest($data = '', $attachments = null)
{
/* Parse response, get SOAP_Parser object. */
$parser =& new SOAP_Parser($data, $this->xml_encoding, $attachments);
/* If fault occurred during message parsing. */
if ($parser->fault) {
$this->fault = $parser->fault;
return null;
}
/* Handle message headers. */
$request_headers = $parser->getHeaders();
$header_results = array();
if ($request_headers) {
if (!is_a($request_headers, 'SOAP_Value')) {
$this->_raiseSoapFault('Parser did not return SOAP_Value object: ' . $request_headers, '', '', 'Server');
return null;
}
if ($request_headers->value) {
/* Handle headers now. */
foreach ($request_headers->value as $header_val) {
$f_exists = $this->validateMethod($header_val->name, $header_val->namespace);
/* TODO: this does not take into account message routing
* yet. */
$myactor = !$header_val->actor ||
$header_val->actor == 'http://schemas.xmlsoap.org/soap/actor/next' ||
$header_val->actor == $this->endpoint;
if (!$f_exists && $header_val->mustunderstand && $myactor) {
$this->_raiseSoapFault('I don\'t understand header ' . $header_val->name, '', '', 'MustUnderstand');
return null;
}
/* We only handle the header if it's for us. */
$isok = $f_exists && $myactor;
if ($isok) {
/* Call our header now! */
$header_method = $header_val->name;
$header_data = array($this->_decode($header_val));
/* If there are parameters to pass. */
$hr =& $this->callMethod($header_method, $header_data);
if (PEAR::isError($hr)) {
$this->_raiseSoapFault($hr);
return null;
}
$results = $this->buildResult($hr, $this->return_type, $header_method, $header_val->namespace);
$header_results[] = $results[0];
}
}
}
}
/* Handle the method call. */
/* Evaluate message, getting back a SOAP_Value object. */
$this->call_methodname = $this->methodname = $parser->root_struct_name[0];
/* Figure out the method namespace. */
$this->method_namespace = $parser->message[$parser->root_struct[0]]['namespace'];
if ($this->_wsdl) {
$this->_setSchemaVersion($this->_wsdl->xsd);
$dataHandler = $this->_wsdl->getDataHandler($this->methodname, $this->method_namespace);
if ($dataHandler)
$this->call_methodname = $this->methodname = $dataHandler;
$this->_portName = $this->_wsdl->getPortName($this->methodname);
if (PEAR::isError($this->_portName)) {
$this->_raiseSoapFault($this->_portName);
return null;
}
$opData = $this->_wsdl->getOperationData($this->_portName, $this->methodname);
if (PEAR::isError($opData)) {
$this->_raiseSoapFault($opData);
return null;
}
$this->_options['style'] = $opData['style'];
$this->_options['use'] = $opData['output']['use'];
$this->_options['parameters'] = $opData['parameters'];
}
/* Does method exist? */
if (!$this->methodname ||
!$this->validateMethod($this->methodname, $this->method_namespace)) {
$this->_raiseSoapFault('method "' . $this->method_namespace . $this->methodname . '" not defined in service', '', '', 'Server');
return null;
}
if (!$request_val = $parser->getResponse()) {
return null;
}
if (!is_a($request_val, 'SOAP_Value')) {
$this->_raiseSoapFault('Parser did not return SOAP_Value object: ' . $request_val, '', '', 'Server');
return null;
}
/* Verify that SOAP_Value objects in request match the methods
* signature. */
if (!$this->verifyMethod($request_val)) {
/* verifyMethod() creates the fault. */
return null;
}
/* Need to set special error detection inside the value class to
* differentiate between no params passed, and an error decoding. */
$request_data = $this->__decodeRequest($request_val);
if (PEAR::isError($request_data)) {
$this->_raiseSoapFault($request_data);
return null;
}
$method_response =& $this->callMethod($this->call_methodname, $request_data);
if (PEAR::isError($method_response)) {
$this->_raiseSoapFault($method_response);
return null;
}
if ($this->_options['parameters'] ||
!$method_response ||
$this->_options['style']=='rpc') {
/* Get the method result. */
if (is_null($method_response)) {
$return_val = null;
} else {
$return_val = $this->buildResult($method_response, $this->return_type);
}
$qn =& new QName($this->methodname . 'Response', $this->method_namespace);
$methodValue =& new SOAP_Value($qn->fqn(), 'Struct', $return_val);
} else {
$methodValue =& $method_response;
}
return $this->makeEnvelope($methodValue, $header_results, $this->response_encoding);
}
function &__decodeRequest($request, $shift = false)
{
if (!$request) {
$decoded = null;
return $decoded;
}
/* Check for valid response. */
if (PEAR::isError($request)) {
$fault = &$this->_raiseSoapFault($request);
return $fault;
} else if (!is_a($request, 'SOAP_Value')) {
$fault = &$this->_raiseSoapFault('Invalid data in server::__decodeRequest');
return $fault;
}
/* Decode to native php datatype. */
$requestArray = $this->_decode($request);
/* Fault? */
if (PEAR::isError($requestArray)) {
$fault = &$this->_raiseSoapFault($requestArray);
return $fault;
}
if (is_object($requestArray) &&
get_class($requestArray) == 'stdClass') {
$requestArray = get_object_vars($requestArray);
} elseif ($this->_options['style'] == 'document') {
$requestArray = array($requestArray);
}
if (is_array($requestArray)) {
if (isset($requestArray['faultcode']) ||
isset($requestArray['SOAP-ENV:faultcode'])) {
$faultcode = $faultstring = $faultdetail = $faultactor = '';
foreach ($requestArray as $k => $v) {
if (stristr($k, 'faultcode')) {
$faultcode = $v;
}
if (stristr($k, 'faultstring')) {
$faultstring = $v;
}
if (stristr($k, 'detail')) {
$faultdetail = $v;
}
if (stristr($k, 'faultactor')) {
$faultactor = $v;
}
}
$fault = &$this->_raiseSoapFault($faultstring, $faultdetail, $faultactor, $faultcode);
return $fault;
}
/* Return array of return values. */
if ($shift && count($requestArray) == 1) {
$decoded = array_shift($requestArray);
return $decoded;
}
return $requestArray;
}
return $requestArray;
}
function verifyMethod($request)
{
if (!$this->callValidation) {
return true;
}
$params = $request->value;
/* Get the dispatch map if one exists. */
$map = null;
if (array_key_exists($this->methodname, $this->dispatch_map)) {
$map = $this->dispatch_map[$this->methodname];
} elseif (isset($this->soapobject)) {
if (method_exists($this->soapobject, '__dispatch')) {
$map = $this->soapobject->__dispatch($this->methodname);
} elseif (method_exists($this->soapobject, $this->methodname)) {
/* No map, all public functions are SOAP functions. */
return true;
}
}
if (!$map) {
$this->_raiseSoapFault('SOAP request specified an unhandled method "' . $this->methodname . '"', '', '', 'Client');
return false;
}
/* If we aliased the SOAP method name to a PHP function, change
* call_methodname so we do the right thing. */
if (array_key_exists('alias', $map) && !empty($map['alias'])) {
$this->call_methodname = $map['alias'];
}
/* If there are input parameters required. */
if ($sig = $map['in']) {
$this->input_value = count($sig);
$this->return_type = false;
if (is_array($map['out'])) {
$this->return_type = count($map['out']) > 1
? $map['out']
: array_shift($map['out']);
}
if (is_array($params)) {
/* Validate the number of parameters. */
if (count($params) == count($sig)) {
/* Make array of param types. */
foreach ($params as $param) {
$p[] = strtolower($param->type);
}
$sig_t = array_values($sig);
/* Validate each param's type. */
for ($i = 0; $i < count($p); $i++) {
/* If SOAP types do not match, it's still fine if the
* mapped php types match this allows using plain PHP
* variables to work (i.e. stuff like Decimal would
* fail otherwise). We consider this only error if the
* types exist in our type maps, and they differ. */
if (strcasecmp($sig_t[$i], $p[$i]) != 0 &&
isset($this->_typemap[SOAP_XML_SCHEMA_VERSION][$sig_t[$i]]) &&
strcasecmp($this->_typemap[SOAP_XML_SCHEMA_VERSION][$sig_t[$i]], $this->_typemap[SOAP_XML_SCHEMA_VERSION][$p[$i]]) != 0) {
$param = $params[$i];
$this->_raiseSoapFault("SOAP request contained mismatching parameters of name $param->name had type [{$p[$i]}], which did not match signature's type: [{$sig_t[$i]}], matched? " . (strcasecmp($sig_t[$i], $p[$i])), '', '', 'Client');
return false;
}
}
return true;
} else {
/* Wrong number of params. */
$this->_raiseSoapFault('SOAP request contained incorrect number of parameters. method "' . $this->methodname . '" required ' . count($sig) . ' and request provided ' . count($params), '', '', 'Client');
return false;
}
} else {
/* No params. */
$this->_raiseSoapFault('SOAP request contained incorrect number of parameters. method "' . $this->methodname . '" requires ' . count($sig) . ' parameters, and request provided none.', '', '', 'Client');
return false;
}
}
/* We'll try it anyway. */
return true;
}
function validateMethod($methodname, $namespace = null)
{
unset($this->soapobject);
if (!$this->callValidation) {
return true;
}
/* No SOAP access to private functions. */
if ($methodname[0] == '_') {
return false;
}
/* if it's in our function list, ok */
if (array_key_exists($methodname, $this->dispatch_map) &&
(!$namespace ||
!array_key_exists('namespace', $this->dispatch_map[$methodname]) ||
$namespace == $this->dispatch_map[$methodname]['namespace'])) {
if (array_key_exists('namespace', $this->dispatch_map[$methodname]))
$this->method_namespace = $this->dispatch_map[$methodname]['namespace'];
return true;
}
/* if it's in an object, it's ok */
if (isset($this->dispatch_objects[$namespace])) {
$c = count($this->dispatch_objects[$namespace]);
for ($i = 0; $i < $c; $i++) {
$obj =& $this->dispatch_objects[$namespace][$i];
/* If we have a dispatch map, and the function is not in the
* dispatch map, then it is not callable! */
if (method_exists($obj, '__dispatch')) {
if ($obj->__dispatch($methodname)) {
$this->method_namespace = $namespace;
$this->soapobject =& $obj;
return true;
}
} elseif (method_exists($obj, $methodname)) {
$this->method_namespace = $namespace;
$this->soapobject =& $obj;
return true;
}
}
}
return false;
}
function addObjectMap(&$obj, $namespace = null, $service_name = 'Default',
$service_desc = '')
{
if (!$namespace) {
if (isset($obj->namespace)) {
// XXX a bit of backwards compatibility
$namespace = $obj->namespace;
} else {
$this->_raiseSoapFault('No namespace provided for class!', '', '', 'Server');
return false;
}
}
if (!isset($this->dispatch_objects[$namespace])) {
$this->dispatch_objects[$namespace] = array();
}
$this->dispatch_objects[$namespace][] =& $obj;
// Create internal WSDL structures for object
// XXX Because some internal workings of PEAR::SOAP decide whether to
// do certain things by the presence or absence of _wsdl, we should
// only create a _wsdl structure if we know we can fill it; if
// __dispatch_map or __typedef for the object is missing, we should
// avoid creating it. Later, when we are using PHP 5 introspection, we
// will be able to make the data for all objects without any extra
// information from the developers, and this condition should be
// dropped.
// XXX Known issue: if imported WSDL (bindWSDL) or another WSDL source
// is used to add _wsdl structure information, then addObjectWSDL is
// used, there is a high possibility of _wsdl data corruption;
// therefore you should avoid using __dispatch_map/__typedef
// definitions AND other WSDL data sources in the same service. We
// exclude classes that don't have __typedefs to allow external WSDL
// files to be used with classes with no internal type definitions
// (the types are defined in the WSDL file). When addObjectWSDL is
// refactored to not cause corruption, this restriction can be
// relaxed.
// In summary, if you add an object with both a dispatch map and type
// definitions, then previous WSDL file operation and type definitions
// will be overwritten.
if (isset($obj->__dispatch_map) && isset($obj->__typedef)) {
$this->addObjectWSDL($obj, $namespace, $service_name, $service_desc);
}
return true;
}
/**
* Adds a method to the dispatch map.
*/
function addToMap($methodname, $in, $out, $namespace = null, $alias = null)
{
if (!$this->callHandler && !function_exists($methodname)) {
$this->_raiseSoapFault('Error mapping function', '', '', 'Server');
return false;
}
$this->dispatch_map[$methodname]['in'] = $in;
$this->dispatch_map[$methodname]['out'] = $out;
$this->dispatch_map[$methodname]['alias'] = $alias;
if ($namespace) {
$this->dispatch_map[$methodname]['namespace'] = $namespace;
}
return true;
}
function setCallHandler($callHandler, $validation = true)
{
$this->callHandler = $callHandler;
$this->callValidation = $validation;
}
/**
* @deprecated use bindWSDL from now on
*/
function bind($wsdl_url)
{
$this->bindWSDL($wsdl_url);
}
/**
* @param string a url to a WSDL resource
* @return void
*/
function bindWSDL($wsdl_url)
{
/* Instantiate WSDL class. */
$this->_wsdl =& new SOAP_WSDL($wsdl_url);
if ($this->_wsdl->fault) {
$this->_raiseSoapFault($this->_wsdl->fault);
}
}
/**
* @return void
*/
function addObjectWSDL(&$wsdl_obj, $targetNamespace, $service_name,
$service_desc = '')
{
if (!isset($this->_wsdl)) {
$this->_wsdl =& new SOAP_WSDL;
}
$this->_wsdl->parseObject($wsdl_obj, $targetNamespace, $service_name, $service_desc);
if ($this->_wsdl->fault) {
$this->_raiseSoapFault($this->_wsdl->fault);
}
}
}
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