5tarl0rd
| Current Path : /usr/share/awl/inc/ |
|
|
| Current File : //usr/share/awl/inc/vComponent.php |
<?php
/**
* A Class for handling vCalendar & vCard data.
*
* When parsed the underlying structure is roughly as follows:
*
* vComponent( array(vComponent), array(vProperty) )
*
* @package awl
* @subpackage vComponent
* @author Milan Medlik <milan@morphoss.com>
* @copyright Morphoss Ltd <http://www.morphoss.com/>
* @license http://gnu.org/copyleft/lgpl.html GNU LGPL v2 or later
*
*/
include_once('vObject.php');
//include_once('HeapLines.php');
include_once('vProperty.php');
class vComponent extends vObject{
private $components;
private $properties;
private $type;
private $iterator;
private $seekBegin;
private $seekEnd;
private $propertyLocation;
const KEYBEGIN = 'BEGIN:';
const KEYBEGINLENGTH = 6;
const KEYEND = "END:";
const KEYENDLENGTH = 4;
const VEOL = "\r\n";
public static $PREPARSED = false;
function __construct($propstring=null, &$refData=null){
parent::__construct($master);
unset($this->type);
if(isset($propstring) && gettype($propstring) == 'string'){
$this->initFromText($propstring);
} else if(isset($refData)){
if(gettype($refData) == 'string'){
$this->initFromText($refData);
} else if(gettype($refData) == 'object') {
$this->initFromIterator($refData);
}
} else {
//$text = '';
//$this->initFromText($text);
}
// if(isset($this->iterator)){
// $this->parseFrom($this->iterator);
// }
}
function initFromIterator(&$iterator, $begin = -1){
$this->iterator = &$iterator;
//$this->seekBegin = $this->iterator->key();
$iterator = $this->iterator;
do {
$line = $iterator->current();
$seek = $iterator->key();
$posStart = strpos(strtoupper($line), vComponent::KEYBEGIN);
if($posStart !== false && $posStart == 0){
if(!isset($this->type)){
$this->seekBegin = $seek;
$this->type = strtoupper(substr($line, vComponent::KEYBEGINLENGTH));
}
} else {
$posEnd = strpos(strtoupper($line), vComponent::KEYEND);
if($posEnd !== false && $posEnd == 0){
$thisEnd = strtoupper(substr($line, vComponent::KEYENDLENGTH));
if($thisEnd == $this->type){
$this->seekEnd = $seek;
//$iterator->next();
$len = strlen($this->type);
$last = $this->type[$len-1];
if($last == "\r"){
$this->type = strtoupper(substr($this->type, 0, $len-1));
}
break;
}
} else {
//$this->properties[] = new vProperty(null, $iterator, $seek);
}
}
$iterator->next();
} while($iterator->valid());
//$this->parseFrom($iterator);
}
public function getIterator(){
return $this->iterator;
}
function initFromText(&$plainText){
$plain2 = $this->UnwrapComponent($plainText);
//$file = fopen('data.out.tmp', 'w');
//$plain3 = preg_replace('{\r?\n}', '\r\n', $plain2 );
//fwrite($file, $plain2);
//fclose($file);
//$lines = &explode(PHP_EOL, $plain2);
// $arrayData = new ArrayObject($lines);
// $this->iterator = &$arrayData->getIterator();
// $this->initFromIterator($this->iterator, 0);
// unset($plain);
// unset($iterator);
// unset($arrayData);
// unset($lines);
// Note that we can't use PHP_EOL here, since the line splitting should handle *either* of CR, CRLF or LF line endings.
$arrayOfLines = new ArrayObject(preg_split('{\r?\n}', $plain2));
$this->iterator = $arrayOfLines->getIterator();
unset($plain2);
//$this->initFromIterator($this->iterator);
//$this->iterator = new HeapLines($plain);
//$this->initFromIterator(new HeapLines($plain), 0);
$this->parseFrom($this->iterator);
}
function rewind(){
if(isset($this->iterator) && isset($this->seekBegin)){
$this->iterator->seek($this->seekBegin);
}
}
/**
* fill arrays with components and properties if they are empty.
*
* basicaly the object are just pointer to memory with input data
* (iterator with seek address on start and end)
* but when you want get information of any components
* or properties is necessary call this function first
*
* @see GetComponents(), ComponentsCount(), GetProperties(), PropertiesCount()
*/
function explode(){
if(!isset($this->properties) && !isset($this->components) && $this->isValid()){
unset($this->properties);
unset($this->components);
unset($this->type);
$this->rewind();
$this->parseFrom($this->iterator);
}
}
function close(){
if(isset($this->components)){
foreach($this->components as $comp){
$comp->close();
}
}
if($this->isValid()){
unset($this->properties);
unset($this->components);
}
}
function parseFrom(&$iterator){
$begin = $iterator->key();
$typelen = 0;
//$count = $lines->count();
do{
$line = $iterator->current();
//$line = substr($current, 0, strlen($current) -1);
$end = $iterator->key();
$pos = strpos(strtoupper($line), vComponent::KEYBEGIN);
$callnext = true;
if($pos !== false && $pos == 0) {
$type = strtoupper(substr($line, vComponent::KEYBEGINLENGTH));
if($typelen !== 0 && strncmp($this->type, $type, $typelen) !== 0){
$this->components[] = new vComponent(null, $iterator);
$callnext = false;
} else {
// in special cases when is "\r" on end remove it
// We should probably throw an error if we get here, because the
// thing that splits stuff should not be giving us this.
$typelen = strlen($type);
if($type[$typelen-1] == "\r"){
$typelen--;
$this->type = substr($type, 0, $typelen);
} else {
$this->type = $type;
}
//$iterator->offsetUnset($end);
//$iterator->seek($begin);
//$callnext = false;
}
} else {
$pos = strpos(strtoupper($line), vComponent::KEYEND);
if($pos !== false && $pos == 0) {
$this->seekBegin = $begin;
$this->seekEnd = $end;
//$iterator->offsetUnset($end);
//$iterator->seek($end-2);
//$line2 = $iterator->current();
//$this->seekEnd = $iterator->key();
//$callnext = false;
//$newheap = $lines->createLineHeapFrom($start, $end);
//$testfistline = $newheap->substr(0);
//echo "end:" . $this->key . "[$start, $end]<br>";
//$lines->nextLine();
//$iterator->offsetUnset($end);
return;
} else {
// $prstart = $lines->getSwheretartLineOnHeap();
// $prend =
//$this->properties[] = new vProperty("AHOJ");
$parameters = preg_split( '(:|;)', $line);
$possiblename = strtoupper(array_shift( $parameters ));
$this->properties[] = new vProperty($possiblename, $this->master, $iterator, $end);
//echo $this->key . ' property line' . "[$prstart,$prend]<br>";
}
}
// if($callnext){
// $iterator->next();
// }
//if($callnext)
// $iterator->offsetUnset($end);
if($iterator->valid())
$iterator->next();
} while($iterator->valid() && ( !isset($this->seekEnd) || $this->seekEnd > $end ) );
//$lines->getEndLineOnHeap();
}
/**
* count of component
* @return int
*/
public function ComponentCount(){
$this->explode();
return isset($this->components) ? count($this->components) : 0;
}
/**
* count of component
* @return int
*/
public function propertiesCount(){
$this->explode();
return isset($this->properties) ? count($this->properties) : 0;
}
/**
* @param $position
* @return null - whet is position out of range
*/
public function getComponentAt($position){
$this->explode();
if($this->ComponentCount() > $position){
return $this->components[$position];
} else {
return null;
}
}
function getPropertyAt($position){
$this->explode();
if($this->propertiesCount() > $position){
return $this->properties[$position];
} else {
return null;
}
}
function clearPropertyAt($position) {
$this->explode();
if($this->isValid()){
$this->invalidate();
}
$i=0; // property index/position is relative to current vComponent
foreach( $this->properties AS $k => $v ) {
if ( $i == $position ) {
unset($this->properties[$k]);
}
$i++;
}
$this->properties = array_values($this->properties);
}
/**
* Return the type of component which this is
*/
function GetType() {
return $this->type;
}
/**
* Set the type of component which this is
*/
function SetType( $type ) {
if ( $this->isValid() ) {
$this->invalidate();
};
$this->type = strtoupper($type);
return $this->type;
}
/**
* Collect an array of all parameters of our properties which are the specified type
* Mainly used for collecting the full variety of references TZIDs
*/
function CollectParameterValues( $parameter_name ) {
$this->explode();
$values = array();
if(isset($this->components)){
foreach( $this->components AS $k => $v ) {
$also = $v->CollectParameterValues($parameter_name);
$values = array_merge( $values, $also );
}
}
if(isset($this->properties)){
foreach( $this->properties AS $k => $v ) {
$also = $v->GetParameterValue($parameter_name);
if ( isset($also) && $also != "" ) {
// dbg_error_log( 'vComponent', "::CollectParameterValues(%s) : Found '%s'", $parameter_name, $also);
$values[$also] = 1;
}
}
}
return $values;
}
/**
* Return the first instance of a property of this name
*/
function GetProperty( $type ) {
$this->explode();
foreach( $this->properties AS $k => $v ) {
if ( is_object($v) && $v->Name() == $type ) {
return $v;
}
else if ( !is_object($v) ) {
dbg_error_log("ERROR", 'vComponent::GetProperty(): Trying to get %s on %s which is not an object!', $type, $v );
}
}
/** So we can call methods on the result of this, make sure we always return a vProperty of some kind */
return null;
}
/**
* Return the value of the first instance of a property of this name, or null
*/
function GetPValue( $type ) {
$this->explode();
$p = $this->GetProperty($type);
if ( isset($p) ) return $p->Value();
return null;
}
/**
* Get all properties, or the properties matching a particular type, or matching an
* array associating property names with true values: array( 'PROPERTY' => true, 'PROPERTY2' => true )
*/
function GetProperties( $type = null ) {
// the properties in base are with name
// it was setted in parseFrom(&interator)
if(!isset($this->properties)){
$this->explode();
}
$properties = array();
$testtypes = (gettype($type) == 'string' ? array( $type => true ) : $type );
foreach( $this->properties AS $k => $v ) {
$name = $v->Name(); //get Property name (string)
$name = preg_replace( '/^.*[.]/', '', $name ); //for grouped properties we remove prefix itemX.
if ( $type == null || (isset($testtypes[$name]) && $testtypes[$name])) {
$properties[] = $v;
}
}
return $properties;
}
/**
* Return an array of properties matching the specified path
*
* @return array An array of vProperty within the tree which match the path given, in the form
* [/]COMPONENT[/...]/PROPERTY in a syntax kind of similar to our poor man's XML queries. We
* also allow COMPONENT and PROPERTY to be !COMPONENT and !PROPERTY for ++fun.
*
* @note At some point post PHP4 this could be re-done with an iterator, which should be more efficient for common use cases.
*/
function GetPropertiesByPath( $path ) {
$properties = array();
dbg_error_log( 'vComponent', "GetPropertiesByPath: Querying within '%s' for path '%s'", $this->type, $path );
if ( !preg_match( '#(/?)(!?)([^/]+)(/?.*)$#', $path, $matches ) ) return $properties;
$anchored = ($matches[1] == '/');
$inverted = ($matches[2] == '!');
$ourtest = $matches[3];
$therest = $matches[4];
dbg_error_log( 'vComponent', "GetPropertiesByPath: Matches: %s -- %s -- %s -- %s\n", $matches[1], $matches[2], $matches[3], $matches[4] );
if ( $ourtest == '*' || (($ourtest == $this->type) !== $inverted) && $therest != '' ) {
if ( preg_match( '#^/(!?)([^/]+)$#', $therest, $matches ) ) {
$normmatch = ($matches[1] =='');
$proptest = $matches[2];
$thisproperties = $this->GetProperties();
if(isset($thisproperties) && count($thisproperties) > 0){
foreach( $thisproperties AS $k => $v ) {
if ( $proptest == '*' || (($v->Name() == $proptest) === $normmatch ) ) {
$properties[] = $v;
}
}
}
}
else {
/**
* There is more to the path, so we recurse into that sub-part
*/
foreach( $this->GetComponents() AS $k => $v ) {
$properties = array_merge( $properties, $v->GetPropertiesByPath($therest) );
}
}
}
if ( ! $anchored ) {
/**
* Our input $path was not rooted, so we recurse further
*/
foreach( $this->GetComponents() AS $k => $v ) {
$properties = array_merge( $properties, $v->GetPropertiesByPath($path) );
}
}
dbg_error_log('vComponent', "GetPropertiesByPath: Found %d within '%s' for path '%s'\n", count($properties), $this->type, $path );
return $properties;
}
/**
* Clear all properties, or the properties matching a particular type
* @param string|array $type The type of property - omit for all properties - or an
* array associating property names with true values: array( 'PROPERTY' => true, 'PROPERTY2' => true )
*/
function ClearProperties( $type = null ) {
$this->explode();
if($this->isValid()){
$this->invalidate();
}
if ( $type != null ) {
$testtypes = (gettype($type) == 'string' ? array( $type => true ) : $type );
// First remove all the existing ones of that type
foreach( $this->properties AS $k => $v ) {
if ( isset($testtypes[$v->Name()]) && $testtypes[$v->Name()] ) {
unset($this->properties[$k]);
}
}
$this->properties = array_values($this->properties);
}
else {
$this->properties = array();
}
}
/**
* Set all properties, or the ones matching a particular type
*/
function SetProperties( $new_properties, $type = null ) {
$this->explode();
$this->ClearProperties($type);
foreach( $new_properties AS $k => $v ) {
$this->properties[] = $v;
}
}
/**
* Adds a new property
*
* @param vProperty $new_property The new property to append to the set, or a string with the name
* @param string $value The value of the new property (default: param 1 is an vProperty with everything
* @param array $parameters The key/value parameter pairs (default: none, or param 1 is an vProperty with everything)
*/
function AddProperty( $new_property, $value = null, $parameters = null ) {
$this->explode();
if ( isset($value) && gettype($new_property) == 'string' ) {
$new_prop = new vProperty('', $this->master);
$new_prop->Name($new_property);
$new_prop->Value($value);
if ( $parameters != null ) {
$new_prop->Parameters($parameters);
}
// dbg_error_log('vComponent'," Adding new property '%s'", $new_prop->Render() );
$this->properties[] = $new_prop;
}
else if ( $new_property instanceof vProperty ) {
$this->properties[] = $new_property;
$new_property->setMaster($this->master);
}
if($this->isValid()){
$this->invalidate();
}
}
/**
* Get all sub-components, or at least get those matching a type, or failling to match,
* should the second parameter be set to false. Component types may be a string or an array
* associating property names with true values: array( 'TYPE' => true, 'TYPE2' => true )
*
* @param mixed $type The type(s) to match (default: All)
* @param boolean $normal_match Set to false to invert the match (default: true)
* @return array an array of the sub-components
*/
function GetComponents( $type = null, $normal_match = true ) {
$this->explode();
$components = isset($this->components) ? $this->components : array();
if ( $type != null ) {
//$components = $this->components;
$testtypes = (gettype($type) == 'string' ? array( $type => true ) : $type );
foreach( $components AS $k => $v ) {
// printf( "Type: %s, %s, %s\n", $v->GetType(),
// ($normal_match && isset($testtypes[$v->GetType()]) && $testtypes[$v->GetType()] ? 'true':'false'),
// ( !$normal_match && (!isset($testtypes[$v->GetType()]) || !$testtypes[$v->GetType()]) ? 'true':'false')
// );
if ( !($normal_match && isset($testtypes[$v->GetType()]) && $testtypes[$v->GetType()] )
&& !( !$normal_match && (!isset($testtypes[$v->GetType()]) || !$testtypes[$v->GetType()])) ) {
unset($components[$k]);
}
}
$components = array_values($components);
}
// print_r($components);
return $components;
}
/**
* Clear all components, or the components matching a particular type
* @param string $type The type of component - omit for all components
*/
function ClearComponents( $type = null ) {
if($this->isValid()){
$this->explode();
}
if ( $type != null && !empty($this->components)) {
$testtypes = (gettype($type) == 'string' ? array( $type => true ) : $type );
// First remove all the existing ones of that type
foreach( $this->components AS $k => $v ) {
$this->components[$k]->ClearComponents($testtypes);
if ( isset($testtypes[$v->GetType()]) && $testtypes[$v->GetType()] ) {
unset($this->components[$k]);
if ( $this->isValid()) {
$this->invalidate();
}
}
}
}
else {
$this->components = array();
if ( $this->isValid()) {
$this->invalidate();
}
}
return $this->isValid();
}
/**
* Sets some or all sub-components of the component to the supplied new components
*
* @param array of vComponent $new_components The new components to replace the existing ones
* @param string $type The type of components to be replaced. Defaults to null, which means all components will be replaced.
*/
function SetComponents( $new_component, $type = null ) {
$this->explode();
if ( $this->isValid()) {
$this->invalidate();
}
if ( empty($type) ) {
$this->components = $new_component;
return;
}
$this->ClearComponents($type);
foreach( $new_component AS $k => $v ) {
$this->components[] = $v;
}
}
/**
* Adds a new subcomponent
*
* @param vComponent $new_component The new component to append to the set
*/
public function AddComponent( $new_component ) {
$this->explode();
if ( is_array($new_component) && count($new_component) == 0 ) return;
if ( $this->isValid()) {
$this->invalidate();
}
try {
if ( is_array($new_component) ) {
foreach( $new_component AS $k => $v ) {
$this->components[] = $v;
if ( !method_exists($v,'setMaster') ) fatal('Component to be added must be a vComponent');
$v->setMaster($this->master);
}
}
else {
if ( !method_exists($new_component,'setMaster') ) fatal('Component to be added must be a vComponent');
$new_component->setMaster($this->master);
$this->components[] = $new_component;
}
}
catch( Exception $e ) {
fatal();
}
}
/**
* Mask components, removing any that are not of the types in the list
* @param array $keep An array of component types to be kept
* @param boolean $recursive (default true) Whether to recursively MaskComponents on the ones we find
*/
function MaskComponents( $keep, $recursive = true ) {
$this->explode();
if(!isset($this->components)){
return ;
}
foreach( $this->components AS $k => $v ) {
if ( !isset($keep[$v->GetType()]) ) {
unset($this->components[$k]);
if ( $this->isValid()) {
$this->invalidate();
}
}
else if ( $recursive ) {
$v->MaskComponents($keep);
}
}
}
/**
* Mask properties, removing any that are not in the list
* @param array $keep An array of property names to be kept
* @param array $component_list An array of component types to check within
*/
function MaskProperties( $keep, $component_list=null ) {
$this->explode();
if ( !isset($component_list) || isset($component_list[$this->type]) ) {
foreach( $this->properties AS $k => $v ) {
if ( !isset($keep[$v->Name()]) || !$keep[$v->Name()] ) {
unset($this->properties[$k]);
if ( $this->isValid()) {
$this->invalidate();
}
}
}
}
if(isset($this->components)){
foreach( $this->components AS $k => $v ) {
$v->MaskProperties($keep, $component_list);
}
}
}
/**
* This imposes the (CRLF + linear space) wrapping specified in RFC2445. According
* to RFC2445 we should always end with CRLF but the CalDAV spec says that normalising
* XML parsers often muck with it and may remove the CR. We output RFC2445 compliance.
*
* In order to preserve pre-existing wrapping in the component, we split the incoming
* string on line breaks before running wordwrap over each component of that.
*/
function WrapComponent( $content ) {
$strs = preg_split( "/\r?\n/", $content );
$wrapped = "";
foreach ($strs as $str) {
// print "Before: >>$str<<, len(".strlen($str).")\n";
$wrapped_bit = (strlen($str) < 76 ? $str : preg_replace( '/(.{72})/u', '$1'."\r\n ", $str )) .self::VEOL;
// print "After: >>$wrapped_bit<<\n";
$wrapped .= $wrapped_bit;
}
return $wrapped;
}
/**
* This unescapes the (CRLF + linear space) wrapping specified in RFC2445. According
* to RFC2445 we should always end with CRLF but the CalDAV spec says that normalising
* XML parsers often muck with it and may remove the CR. We accept either case.
*/
function UnwrapComponent( &$content ) {
return preg_replace('/\r?\n[ \t]/', '', $content );
}
/**
* Render vComponent without wrap lines
* @param null $restricted_properties
* @param bool $force_rendering
* @return string
*/
protected function RenderWithoutWrap($restricted_properties = null, $force_rendering = false){
$unrolledComponents = isset($this->components);
$rendered = vComponent::KEYBEGIN . $this->type . self::VEOL;
if($this->isValid()){
$rendered .= $this->RenderWithoutWrapFromIterator($unrolledComponents);
} else {
$rendered .= $this->RenderWithoutWrapFromObjects();
}
if($unrolledComponents){
//$count = 0;
foreach($this->components as $component){
//$component->explode();
//$count++;
$component_render = $component->RenderWithoutWrap( null, $force_rendering );
if(strlen($component_render) > 0){
$rendered .= $component_render . self::VEOL;
}
//$component->close();
}
}
return $rendered . vComponent::KEYEND . $this->type;
}
/**
* Let render property by property
* @return string
*/
protected function RenderWithoutWrapFromObjects(){
$rendered = '';
if(isset($this->properties)){
foreach( $this->properties AS $k => $v ) {
if ( method_exists($v, 'Render') ) {
$forebug = $v->Render() . self::VEOL;
$rendered .= $forebug;
}
}
}
return $rendered;
}
/**
* take source data in Iterator and recreate to string
* @param boolean $unroledComponents - have any components
* @return string - rendered object
*/
protected function RenderWithoutWrapFromIterator($unrolledComponents){
$this->rewind();
$rendered = '';
$lentype = 0;
if(isset($this->type)){
$lentype = strlen($this->type);
}
$iterator = $this->iterator;
$inInnerObject = 0;
do {
$line = $iterator->current() . self::VEOL;
$seek = $iterator->key();
$posStart = strpos($line, vComponent::KEYBEGIN);
if($posStart !== false && $posStart == 0){
$type = substr($line, vComponent::KEYBEGINLENGTH);
if(!isset($this->type)){
//$this->seekBegin = $seek;
$this->type = $type;
$lentype = strlen($this->type);
} else if(strncmp($type, $this->type, $lentype) != 0){
// dont render line which is owned
// by inner commponent -> inner component *BEGIN*
if($unrolledComponents){
$inInnerObject++;
} else {
$rendered .= $line ;
}
}
} else {
$posEnd = strpos($line, vComponent::KEYEND);
if($posEnd !== false && $posEnd == 0){
$thisEnd = substr($line, vComponent::KEYENDLENGTH);
if(strncmp($thisEnd, $this->type, $lentype) == 0){
// Current object end
$this->seekEnd = $seek;
//$iterator->next();
break;
}else if($unrolledComponents){
// dont render line which is owned
// by inner commponent -> inner component *END*
$inInnerObject--;
} else {
$rendered .= $line;
}
} else if($inInnerObject === 0 || !$unrolledComponents){
$rendered .= $line;
}
}
$iterator->next();
} while($iterator->valid() && ( !isset($this->seekEnd) || $this->seekEnd > $seek));
return $rendered;
}
/**
* render object to string with wraped lines
* @param null $restricted_properties
* @param bool $force_rendering
* @return string - rendered object
*/
function Render($restricted_properties = null, $force_rendering = false){
return $this->WrapComponent($this->RenderWithoutWrap($restricted_properties, $force_rendering));
//return $this->InternalRender($restricted_properties, $force_rendering);
}
function isValid(){
if($this->valid){
if(isset($this->components)){
foreach($this->components as $comp){
if(!$comp->isValid()){
return false;
}
}
}
return true;
}
return false;
}
/**
* Test a PROP-FILTER or COMP-FILTER and return a true/false
* COMP-FILTER (is-defined | is-not-defined | (time-range?, prop-filter*, comp-filter*))
* PROP-FILTER (is-defined | is-not-defined | ((time-range | text-match)?, param-filter*))
*
* @param array $filter An array of XMLElement defining the filter
*
* @return boolean Whether or not this vComponent passes the test
*/
function TestFilter( $filters ) {
foreach( $filters AS $k => $v ) {
$tag = $v->GetNSTag();
// dbg_error_log( 'vCalendar', ":TestFilter: '%s' ", $tag );
switch( $tag ) {
case 'urn:ietf:params:xml:ns:caldav:is-defined':
case 'urn:ietf:params:xml:ns:carddav:is-defined':
if ( count($this->properties) == 0 && count($this->components) == 0 ) return false;
break;
case 'urn:ietf:params:xml:ns:caldav:is-not-defined':
case 'urn:ietf:params:xml:ns:carddav:is-not-defined':
if ( count($this->properties) > 0 || count($this->components) > 0 ) return false;
break;
case 'urn:ietf:params:xml:ns:caldav:comp-filter':
case 'urn:ietf:params:xml:ns:carddav:comp-filter':
$subcomponents = $this->GetComponents($v->GetAttribute('name'));
$subfilter = $v->GetContent();
// dbg_error_log( 'vCalendar', ":TestFilter: Found '%d' (of %d) subs of type '%s'",
// count($subcomponents), count($this->components), $v->GetAttribute('name') );
$subtag = $subfilter[0]->GetNSTag();
if ( $subtag == 'urn:ietf:params:xml:ns:caldav:is-not-defined'
|| $subtag == 'urn:ietf:params:xml:ns:carddav:is-not-defined' ) {
if ( count($properties) > 0 ) {
// dbg_error_log( 'vComponent', ":TestFilter: Wanted none => false" );
return false;
}
}
else if ( count($subcomponents) == 0 ) {
if ( $subtag == 'urn:ietf:params:xml:ns:caldav:is-defined'
|| $subtag == 'urn:ietf:params:xml:ns:carddav:is-defined' ) {
// dbg_error_log( 'vComponent', ":TestFilter: Wanted some => false" );
return false;
}
else {
// dbg_error_log( 'vCalendar', ":TestFilter: Wanted something from missing sub-components => false" );
$negate = $subfilter[0]->GetAttribute("negate-condition");
if ( empty($negate) || strtolower($negate) != 'yes' ) return false;
}
}
else {
foreach( $subcomponents AS $kk => $subcomponent ) {
if ( ! $subcomponent->TestFilter($subfilter) ) return false;
}
}
break;
case 'urn:ietf:params:xml:ns:carddav:prop-filter':
case 'urn:ietf:params:xml:ns:caldav:prop-filter':
$subfilter = $v->GetContent();
$properties = $this->GetProperties($v->GetAttribute("name"));
dbg_error_log( 'vCalendar', ":TestFilter: Found '%d' props of type '%s'", count($properties), $v->GetAttribute('name') );
if ( empty($subfilter) ) {
// empty means: test if a property of the type specified by the "name" attribute exists (rfc6352, 10.5.1)
$subtag = str_replace('prop-filter', 'is-defined', $tag);
} else {
$subtag = $subfilter[0]->GetNSTag();
}
if ( $subtag == 'urn:ietf:params:xml:ns:caldav:is-not-defined'
|| $subtag == 'urn:ietf:params:xml:ns:carddav:is-not-defined' ) {
if ( count($properties) > 0 ) {
// dbg_error_log( 'vCalendar', ":TestFilter: Wanted none => false" );
return false;
}
}
else if ( count($properties) == 0 ) {
if ( $subtag == 'urn:ietf:params:xml:ns:caldav:is-defined'
|| $subtag == 'urn:ietf:params:xml:ns:carddav:is-defined' ) {
// dbg_error_log( 'vCalendar', ":TestFilter: Wanted some => false" );
return false;
}
else {
// dbg_error_log( 'vCalendar', ":TestFilter: Wanted '%s' from missing sub-properties => false", $subtag );
$negate = $subfilter[0]->GetAttribute("negate-condition");
if ( empty($negate) || strtolower($negate) != 'yes' ) return false;
}
}
else {
foreach( $properties AS $kk => $property ) {
if ( !empty($subfilter) && !$property->TestFilter($subfilter) ) return false;
}
}
break;
}
}
return true;
}
}
5tarL0rd By