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<?php
namespace Sabre\VObject\Parser;
use Sabre\VObject\Component\VCalendar;
use Sabre\VObject\Component\VCard;
use Sabre\VObject\Document;
use Sabre\VObject\EofException;
use Sabre\VObject\ParseException;
use Sabre\VObject\Property\FlatText;
use Sabre\VObject\Property\Text;
/**
* Json Parser.
*
* This parser parses both the jCal and jCard formats.
*
* @copyright Copyright (C) fruux GmbH (https://fruux.com/)
* @author Evert Pot (http://evertpot.com/)
* @license http://sabre.io/license/ Modified BSD License
*/
class Json extends Parser
{
/**
* The input data.
*
* @var array
*/
protected $input;
/**
* Root component.
*
* @var Document
*/
protected $root;
/**
* This method starts the parsing process.
*
* If the input was not supplied during construction, it's possible to pass
* it here instead.
*
* If either input or options are not supplied, the defaults will be used.
*
* @param resource|string|array|null $input
* @param int $options
*
* @return \Sabre\VObject\Document
*/
public function parse($input = null, $options = 0)
{
if (!is_null($input)) {
$this->setInput($input);
}
if (is_null($this->input)) {
throw new EofException('End of input stream, or no input supplied');
}
if (0 !== $options) {
$this->options = $options;
}
switch ($this->input[0]) {
case 'vcalendar':
$this->root = new VCalendar([], false);
break;
case 'vcard':
$this->root = new VCard([], false);
break;
default:
throw new ParseException('The root component must either be a vcalendar, or a vcard');
}
foreach ($this->input[1] as $prop) {
$this->root->add($this->parseProperty($prop));
}
if (isset($this->input[2])) {
foreach ($this->input[2] as $comp) {
$this->root->add($this->parseComponent($comp));
}
}
// Resetting the input so we can throw an feof exception the next time.
$this->input = null;
return $this->root;
}
/**
* Parses a component.
*
* @return \Sabre\VObject\Component
*/
public function parseComponent(array $jComp)
{
// We can remove $self from PHP 5.4 onward.
$self = $this;
$properties = array_map(
function ($jProp) use ($self) {
return $self->parseProperty($jProp);
},
$jComp[1]
);
if (isset($jComp[2])) {
$components = array_map(
function ($jComp) use ($self) {
return $self->parseComponent($jComp);
},
$jComp[2]
);
} else {
$components = [];
}
return $this->root->createComponent(
$jComp[0],
array_merge($properties, $components),
$defaults = false
);
}
/**
* Parses properties.
*
* @return \Sabre\VObject\Property
*/
public function parseProperty(array $jProp)
{
list(
$propertyName,
$parameters,
$valueType
) = $jProp;
$propertyName = strtoupper($propertyName);
// This is the default class we would be using if we didn't know the
// value type. We're using this value later in this function.
$defaultPropertyClass = $this->root->getClassNameForPropertyName($propertyName);
$parameters = (array) $parameters;
$value = array_slice($jProp, 3);
$valueType = strtoupper($valueType);
if (isset($parameters['group'])) {
$propertyName = $parameters['group'].'.'.$propertyName;
unset($parameters['group']);
}
$prop = $this->root->createProperty($propertyName, null, $parameters, $valueType);
$prop->setJsonValue($value);
// We have to do something awkward here. FlatText as well as Text
// represents TEXT values. We have to normalize these here. In the
// future we can get rid of FlatText once we're allowed to break BC
// again.
if (FlatText::class === $defaultPropertyClass) {
$defaultPropertyClass = Text::class;
}
// If the value type we received (e.g.: TEXT) was not the default value
// type for the given property (e.g.: BDAY), we need to add a VALUE=
// parameter.
if ($defaultPropertyClass !== get_class($prop)) {
$prop['VALUE'] = $valueType;
}
return $prop;
}
/**
* Sets the input data.
*
* @param resource|string|array $input
*/
public function setInput($input)
{
if (is_resource($input)) {
$input = stream_get_contents($input);
}
if (is_string($input)) {
$input = json_decode($input);
}
$this->input = $input;
}
}
|
