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Added OPTIONS functionality and overriding to graph
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Michael Chisari committed Mar 12, 2011
1 parent db86485 commit 9033880
Showing 1 changed file with 165 additions and 53 deletions.
218 changes: 165 additions & 53 deletions hooks/graph/graph.php
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Expand Up @@ -20,6 +20,10 @@
*/
class cGraphHook extends cHook {

private $_Component;
private $_Method;
private $_Format;

/**
* Constructor
*
Expand Down Expand Up @@ -63,67 +67,62 @@ public function EndSystemInitialize ( $pData = null ) {
$Parameters[$PartCount] = preg_replace ( '/\.json$/', '', $Parameters[$PartCount] );
if ( !$Parameters[$PartCount] ) unset ( $Parameters[$PartCount] );
$Data['objects'] = $Parameters;
} else if ( count ( $Parts[2] ) ) {
} else if ( $Parts[2] ) {
$last = $Parts[2];
$Parts[2] = preg_replace ( '/\.xml$/', '', $Parts[2] );
$Parts[2] = preg_replace ( '/\.json$/', '', $Parts[2] );
} else if ( count ( $Parts[1] ) ) {
} else if ( $Parts[1] ) {
$last = $Parts[1];
$Parts[1] = preg_replace ( '/\.xml$/', '', $Parts[1] );
$Parts[1] = preg_replace ( '/\.json$/', '', $Parts[1] );
}

$sections = explode ( '.', $last );

// Find the value past the . to determine the return format.
$format = ltrim ( rtrim ( strtolower ( $sections[1] ) ) );
$this->_Format = ltrim ( rtrim ( strtolower ( $sections[1] ) ) );

// Currently supported is XML and JSON format.
switch ( $format ) {
switch ( $this->_Format ) {
case 'xml':
case 'json':
break;
default:
// Default to JSON
$format = 'json';
$this->_Format = 'json';
break;
}

$Component = ucwords ( $Parts[1] );
$Method = ucwords ( $requestMethod ) . ucwords ( $Parts[2] );
$this->_Component = ucwords ( $Parts[1] );
$this->_Method = ucwords ( $requestMethod ) . ucwords ( $Parts[2] );

// If we're requesting
if ( $requestMethod == 'options' ) {
if ( $Parts[2] ) {
$this->_Options ( ucwords ( $Parts[2] ) );
} else {
$this->_OptionsAll ( );
}
}

// 1. Check if the method exists.
if ( !$this->_ComponentMethodExists ( $Component, $Method ) ) {
if ( !$this->_ComponentMethodExists ( $this->_Component, $this->_Method ) ) {
// We cannot resolve to a component, error out.
$this->_Error ( '404' );
exit;
}

// 2. Determine proper authorization.
if ( !$this->_CheckAccess ( $Component, $Method ) ) {
if ( !$this->_CheckAccess ( $this->_Component, $this->_Method ) ) {
// No access
$this->_Error ( '403' );
exit;
}

// 3. Execute the component method.
$return = $this->GetSys ( 'Components' )->Talk ( $Component, $Method, $Data );
$return = $this->GetSys ( 'Components' )->Talk ( $this->_Component, $this->_Method, $Data );

// 4. Translate the resulting value.
switch ( $format ) {
case 'xml':
header ("content-type: text/xml; charset=utf-8");

$output = $this->_ArrayToXML ( "<result/>", $return );
break;
case 'json':
default:
header('content-type: application/json; charset=utf-8');

$output = json_encode ( $return );
break;
}

echo $output;
$this->Format ( $return );

// Exit the framework completely
exit;
Expand Down Expand Up @@ -260,31 +259,144 @@ private function _NodeInformation ( ) {
exit;
}

/*
* Adapted from php.net
* Original author: phil at dier dot us
*
* @todo: Replace with a better approach.
*/
private function _ArrayToXML ( $pRoot, $pArray ) {
$xml = new SimpleXMLElement($pRoot);
$f = create_function('$f,$c,$a','
foreach($a as $k=>$v) {
if(is_array($v)) {
$ch=$c->addChild($k);
$f($f,$ch,$v);
} else {
if ( is_int ($k) ) $k = "value";
$c->addChild($k,$v);
}
}');
$f ( $f, $xml, $pArray);

$dom = new DOMDocument('1.0');
$dom->preserveWhiteSpace = false;
$dom->formatOutput = true;
$dom->loadXML($xml->asXML());

return ( $dom->saveXML() );
}
private function _Options ( $pObject ) {

// 1. Check if the method exists.
if ( $this->_ComponentMethodExists ( $this->_Component, 'Options' . $pObject ) ) {
// Override Options
$return = $this->GetSys ( 'Components' )->Talk ( $this->_Component, 'Options' . $pObject, $Data );
$this->Format ( $return );
exit;
}

$return = array();
$return['interface'] = strtolower ( $this->_Component );
$return['object'] = strtolower ( $pObject );
$return['methods'] = array();

$class = $this->_Component;
$reflect = new ReflectionClass ( $this->GetSys ( 'Components' )->$class );
$methods = $reflect->getMethods();

$className = $reflect->GetName();

foreach ( $methods as $m => $method ) {

// Skip if we're looking at an inherited method.
if ( $method->GetDeclaringClass()->getName() != $className ) continue;

$methodType = null;

switch ( $method->getName() ) {
case 'Get' . $pObject;
$methodType = 'get';
break;
case 'Post' . $pObject;
$methodType = 'post';
break;
case 'Put' . $pObject;
$methodType = 'put';
break;
case 'Delete' . $pObject;
$methodType = 'delete';
break;
default:
break;
}

if ( !$methodType ) continue;

$parameters = $method->getParameters();
foreach ( $parameters as $p => $parameter ) {
$name = strtolower ( $parameter->getName() );
$return['methods'][$methodType]['params'][] = array ();
$pointer = count ( $return['methods'][$methodType]['params'] ) - 1;
$return['methods'][$methodType]['params'][$pointer]['name'] = $name;
if ( $parameter->isDefaultValueAvailable() ) {
$return['methods'][$methodType]['params'][$pointer]['required'] = '0';
$return['methods'][$methodType]['params'][$pointer]['default'] = $parameter->getDefaultValue();
} else {
$return['methods'][$methodType]['params'][$pointer]['required'] = '1';
}
}
}

$this->Format ( $return );
exit;
}

private function _OptionsAll ( ) {

// 1. Check if the method exists.
if ( $this->_ComponentMethodExists ( $this->_Component, 'Options' ) ) {
// Override Options
$return = $this->GetSys ( 'Components' )->Talk ( $this->_Component, 'Options' . $pObject, $Data );
$this->Format ( $return );
exit;
}

$return = array();
$return['interface'] = strtolower ( $this->_Component );
$return['objects'] = array();

$class = $this->_Component;
$reflect = new ReflectionClass ( $this->GetSys ( 'Components' )->$class );
$methods = $reflect->getMethods();

$className = $reflect->GetName();

foreach ( $methods as $m => $method ) {

// Skip if we're looking at an inherited method.
if ( $method->GetDeclaringClass()->getName() != $className ) continue;

// Only match REST request methods.
if ( !preg_match ( "/^(Get|Post|Put|Delete)(.*)/", $method->getName(), $matches) ) {
continue;
}

$methodType = strtolower ( $matches[1] );
$object = strtolower ( $matches[2] );

$return['objects'][$object]['methods'][$methodType] = array();

$parameters = $method->getParameters();
foreach ( $parameters as $p => $parameter ) {
$name = strtolower ( $parameter->getName() );
$return['objects'][$object]['methods'][$methodType]['params'][] = array ();
$pointer = count ( $return['objects'][$object]['methods'][$methodType]['params'] ) - 1;
$return['objects'][$object]['methods'][$methodType]['params'][$pointer]['name'] = $name;
if ( $parameter->isDefaultValueAvailable() ) {
$return['objects'][$object]['methods'][$methodType]['params'][$pointer]['required'] = '0';
$return['objects'][$object]['methods'][$methodType]['params'][$pointer]['default'] = $parameter->getDefaultValue();
} else {
$return['objects'][$object]['methods'][$methodType]['params'][$pointer]['required'] = '1';
}
}
}

$this->Format ( $return );
exit;
}

private function Format ( $pResponse ) {

switch ( $this->_Format ) {
case 'xml':
header ("content-type: text/xml; charset=utf-8");

$output = xml_encode ( $pResponse );
break;
case 'json':
default:
header('content-type: application/json; charset=utf-8');

$output = json_encode ( $pResponse );
break;
}

echo $output;

return ( true );
}
}

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