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egroupware_official/phpgwapi/inc/class.soap_parser.inc.php

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<?php
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/* $Id$ */
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class soap_parser
{
function soap_parser($xml='',$encoding='UTF-8')
{
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$this->soapTypes = $GLOBALS['soapTypes'];
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$this->xml = $xml;
$this->xml_encoding = $encoding;
$this->root_struct = "";
// options: envelope,header,body,method
// determines where in the message we are (envelope,header,body,method)
$this->status = '';
$this->position = 0;
$this->pos_stat = 0;
$this->depth = 0;
$this->default_namespace = '';
$this->namespaces = array();
$this->message = array();
$this->fault = false;
$this->fault_code = '';
$this->fault_str = '';
$this->fault_detail = '';
$this->eval_str = '';
$this->depth_array = array();
$this->debug_flag = True;
$this->debug_str = '';
$this->previous_element = '';
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$this->entities = array (
'&' => '&amp;',
'<' => '&lt;',
'>' => '&gt;',
"'" => '&apos;',
'"' => '&quot;'
);
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// Check whether content has been read.
if(!empty($xml))
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{
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$this->debug('Entering soap_parser()');
//$this->debug("DATA DUMP:\n\n$xml");
// Create an XML parser.
$this->parser = xml_parser_create($this->xml_encoding);
// Set the options for parsing the XML data.
//xml_parser_set_option($parser, XML_OPTION_SKIP_WHITE, 1);
xml_parser_set_option($this->parser, XML_OPTION_CASE_FOLDING, 0);
// Set the object for the parser.
xml_set_object($this->parser, &$this);
// Set the element handlers for the parser.
xml_set_element_handler($this->parser, 'start_element','end_element');
xml_set_character_data_handler($this->parser,'character_data');
xml_set_default_handler($this->parser, 'default_handler');
// Parse the XML file.
if(!xml_parse($this->parser,$xml,true))
{
// Display an error message.
$this->debug(sprintf("XML error on line %d: %s",
xml_get_current_line_number($this->parser),
xml_error_string(xml_get_error_code($this->parser))));
$this->fault = true;
}
else
{
// get final eval string
$this->eval_str = "\$response = ".trim($this->build_eval($this->root_struct)).";";
}
xml_parser_free($this->parser);
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}
else
{
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$this->debug("xml was empty, didn't parse!");
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}
}
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// loop through msg, building eval_str
function build_eval($pos)
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{
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$this->debug("inside build_eval() for $pos: ".$this->message[$pos]["name"]);
$eval_str = $this->message[$pos]['eval_str'];
// loop through children, building...
if($this->message[$pos]['children'] != '')
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{
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$this->debug('children string = '.$this->message[$pos]['children']);
$children = explode('|',$this->message[$pos]['children']);
$this->debug('it has '.count($children).' children');
@reset($children);
while(list($c,$child_pos) = @each($children))
/* foreach($children as $c => $child_pos) */
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{
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//$this->debug("child pos $child_pos: ".$this->message[$child_pos]["name"]);
if($this->message[$child_pos]['eval_str'] != '')
{
$this->debug('entering build_eval() for '.$this->message[$child_pos]['name'].", array pos $c, pos: $child_pos");
$eval_str .= $this->build_eval($child_pos).', ';
}
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}
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$eval_str = substr($eval_str,0,strlen($eval_str)-2);
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}
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// add current node's eval_str
$eval_str .= $this->message[$pos]['end_eval_str'];
return $eval_str;
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}
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// start-element handler
function start_element($parser, $name, $attrs)
{
// position in a total number of elements, starting from 0
// update class level pos
$pos = $this->position++;
// and set mine
$this->message[$pos]['pos'] = $pos;
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// parent/child/depth determinations
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// depth = how many levels removed from root?
// set mine as current global depth and increment global depth value
$this->message[$pos]['depth'] = $this->depth++;
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// else add self as child to whoever the current parent is
if($pos != 0)
{
$this->message[$this->parent]['children'] .= "|$pos";
}
// set my parent
$this->message[$pos]['parent'] = $this->parent;
// set self as current value for this depth
$this->depth_array[$this->depth] = $pos;
// set self as current parent
$this->parent = $pos;
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// set status
if(ereg(":Envelope$",$name))
{
$this->status = 'envelope';
}
elseif(ereg(":Header$",$name))
{
$this->status = 'header';
}
elseif(ereg(":Body$",$name))
{
$this->status = 'body';
// set method
}
elseif($this->status == 'body')
{
$this->status = 'method';
if(ereg(':',$name))
{
$this->root_struct_name = substr(strrchr($name,':'),1);
}
else
{
$this->root_struct_name = $name;
}
$this->root_struct = $pos;
$this->message[$pos]['type'] = 'struct';
}
// set my status
$this->message[$pos]['status'] = $this->status;
// set name
$this->message[$pos]['name'] = htmlspecialchars($name);
// set attrs
$this->message[$pos]['attrs'] = $attrs;
// get namespace
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if(ereg(":",$name))
{
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$namespace = substr($name,0,strpos($name,':'));
$this->message[$pos]['namespace'] = $namespace;
$this->default_namespace = $namespace;
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}
else
{
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$this->message[$pos]['namespace'] = $this->default_namespace;
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}
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// loop through atts, logging ns and type declarations
@reset($attrs);
while (list($key,$value) = @each($attrs))
/* foreach($attrs as $key => $value) */
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{
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// if ns declarations, add to class level array of valid namespaces
if(ereg('xmlns:',$key))
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{
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$namespaces[substr(strrchr($key,':'),1)] = $value;
if($name == $this->root_struct_name)
{
$this->methodNamespace = $value;
}
}
// if it's a type declaration, set type
elseif($key == 'xsi:type')
{
// then get attname and set $type
$type = substr(strrchr($value,':'),1);
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}
}
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// set type if available
if($type)
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{
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$this->message[$pos]['type'] = $type;
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}
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// debug
//$this->debug("parsed $name start, eval = '".$this->message[$pos]["eval_str"]."'");
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}
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// end-element handler
function end_element($parser, $name)
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{
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// position of current element is equal to the last value left in depth_array for my depth
$pos = $this->depth_array[$this->depth];
// bring depth down a notch
$this->depth--;
// get type if not set already
if($this->message[$pos]['type'] == '')
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{
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// if($this->message[$pos]['cdata'] == '' && $this->message[$pos]['children'] != '')
if($this->message[$pos]['children'] != '')
{
$this->message[$pos]['type'] = 'SOAPStruct';
}
else
{
$this->message[$pos]['type'] = 'string';
}
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}
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// set eval str start if it has a valid type and is inside the method
if($pos >= $this->root_struct)
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{
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$this->message[$pos]['eval_str'] .= "\n CreateObject(\"phpgwapi.soapval\",\"".htmlspecialchars($name)."\", \"".$this->message[$pos]["type"]."\" ";
$this->message[$pos]['end_eval_str'] = ')';
$this->message[$pos]['inval'] = 'true';
/*
if($this->message[$pos]["name"] == $this->root_struct_name){
$this->message[$pos]["end_eval_str"] .= " ,\"$this->methodNamespace\"";
}
*/
if($this->message[$pos]['children'] != '')
{
$this->message[$pos]['eval_str'] .= ', array( ';
$this->message[$pos]['end_eval_str'] .= ' )';
}
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}
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// if i have no children and have cdata...then i must be a scalar value, so add my data to the eval_str
if($this->status == 'method' && $this->message[$pos]['children'] == '')
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{
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// add cdata w/ no quotes if only int/float/dbl
if($this->message[$pos]['type'] == 'string')
{
$this->message[$pos]['eval_str'] .= ", \"".$this->message[$pos]['cdata']."\"";
}
elseif($this->message[$pos]['type'] == 'int' || $this->message[$pos]['type'] == 'float' || $this->message[$pos]['type'] == 'double')
{
//$this->debug("adding cdata w/o quotes");
$this->message[$pos]['eval_str'] .= ', '.trim($this->message[$pos]['cdata']);
}
elseif(is_string($this->message[$pos]['cdata']))
{
//$this->debug("adding cdata w/ quotes");
$this->message[$pos]['eval_str'] .= ", \"".$this->message[$pos]['cdata']."\"";
}
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}
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// if in the process of making a soap_val, close the parentheses and move on...
if($this->message[$pos]['inval'] == 'true')
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{
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$this->message[$pos]['inval'] == 'false';
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}
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// if tag we are currently closing is the method wrapper
if($pos == $this->root_struct)
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{
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$this->status = 'body';
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}
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elseif(ereg(':Body',$name))
{
$this->status = 'header';
}
elseif(ereg(':Header',$name))
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{
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$this->status = 'envelope';
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}
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// set parent back to my parent
$this->parent = $this->message[$pos]['parent'];
$this->debug("parsed $name end, type '".$this->message[$pos]['type']."'eval_str = '".trim($this->message[$pos]['eval_str'])."' and children = ".$this->message[$pos]['children']);
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}
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// element content handler
function character_data($parser, $data)
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{
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$pos = $this->depth_array[$this->depth];
$this->message[$pos]['cdata'] .= $data;
//$this->debug("parsed ".$this->message[$pos]["name"]." cdata, eval = '$this->eval_str'");
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}
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// default handler
function default_handler($parser, $data)
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{
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//$this->debug("DEFAULT HANDLER: $data");
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}
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// function to get fault code
function fault()
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{
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if($this->fault)
{
return true;
}
else
{
return false;
}
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}
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// have this return a soap_val object
function get_response()
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{
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$this->debug("eval()ing eval_str: $this->eval_str");
@eval("$this->eval_str");
if($response)
{
$this->debug("successfully eval'd msg");
return $response;
}
else
{
$this->debug('ERROR: did not successfully eval the msg');
$this->fault = true;
return CreateObject('phpgwapi.soapval',
'Fault',
'struct',
array(
CreateObject('phpgwapi.soapval',
'faultcode',
'string',
'SOAP-ENV:Server'
),
CreateObject('phpgwapi.soapval',
'faultstring',
'string',
"couldn't eval \"$this->eval_str\""
)
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)
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);
}
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}
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function debug($string)
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{
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if($this->debug_flag)
{
$this->debug_str .= "$string\n";
}
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}
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function decode_entities($text)
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{
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@reset($this->entities);
while(list($entity,$encoded) = @each($this->entities))
/* foreach($this->entities as $entity => $encoded) */
{
$text = str_replace($encoded,$entity,$text);
}
return $text;
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}
}
?>