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1420 lines
47 KiB
PHP
1420 lines
47 KiB
PHP
<?php
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/**
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* Class representing iCalendar files.
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*
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* $Horde: framework/iCalendar/iCalendar.php,v 1.53 2004/09/24 03:34:43 chuck Exp $
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*
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* Copyright 2003-2004 Mike Cochrane <mike@graftonhall.co.nz>
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*
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* See the enclosed file COPYING for license information (LGPL). If you
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* did not receive this file, see http://www.fsf.org/copyleft/lgpl.html.
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*
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* @author Mike Cochrane <mike@graftonhall.co.nz>
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* @version $Revision$
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* @since Horde 3.0
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* @package Horde_iCalendar
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*/
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class Horde_iCalendar {
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/**
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* The parent (containing) iCalendar object.
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*
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* @var object Horde_iCalendar $_container
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*/
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var $_container = false;
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var $_attributes = array();
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var $_components = array();
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/**
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* According to RFC 2425, we should always use CRLF-terminated
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* lines.
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*
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* @var string $_newline
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*/
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var $_newline = "\r\n";
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/**
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* Return a reference to a new component.
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*
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* @param string $type The type of component to return
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* @param object $container A container that this component
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* will be associated with.
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*
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* @return object Reference to a Horde_iCalendar_* object as specified.
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*/
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function &newComponent($type, &$container)
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{
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# require_once 'Horde/String.php';
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$type = strtolower($type);
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$class = 'Horde_iCalendar_' . strtolower($type);
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include_once dirname(__FILE__) . '/iCalendar/' . $type . '.php';
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if (class_exists($class)) {
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$component = &new $class();
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if ($container !== false) {
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$component->_container = &$container;
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}
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return $component;
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} else {
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// Should return an dummy x-unknown type class here.
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return false;
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}
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}
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/**
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* Set the value of an attribute.
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*
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* @param string $name The name of the attribute.
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* @param string $value The value of the attribute.
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* @param array $params (optional) Array containing any addition
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* parameters for this attribute.
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* @param boolean $append (optional) True to append the attribute, False
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* to replace the first matching attribute found.
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* @param array $values (optional) array representation of $value.
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* For comma/semicolon seperated lists of values.
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* If not set use $value as single array element.
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*/
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function setAttribute($name, $value, $params = array(), $append = true, $values = false)
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{
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$found = $append;
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if (!$values) {
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$values = array($value);
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}
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$keys = array_keys($this->_attributes);
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foreach ($keys as $key) {
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if ($found) break;
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if ($this->_attributes[$key]['name'] == $name) {
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$this->_attributes[$key]['params'] = $params;
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$this->_attributes[$key]['value'] = $value;
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$this->_attributes[$key]['values'] = $values;
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$found = true;
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}
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}
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if ($append || !$found) {
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$this->_attributes[] = array(
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'name' => $name,
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'params' => $params,
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'value' => $value,
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'values' => $values
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);
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}
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}
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/**
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* Sets parameter(s) for an (already existing) attribute. The
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* parameter set is merged into the existing set.
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*
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* @param string $name The name of the attribute.
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* @param array $params Array containing any additional
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* parameters for this attribute.
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* @return boolean True on success, false if no attribute $name exists.
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*/
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function setParameter($name, $params)
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{
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$keys = array_keys($this->_attributes);
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foreach ($keys as $key) {
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if ($this->_attributes[$key]['name'] == $name) {
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$this->_attributes[$key]['params'] =
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array_merge((array)$this->_attributes[$key]['params'] , $params);
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return true;
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}
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}
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return false;
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}
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/**
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* Get the value of an attribute.
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*
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* @param string $name The name of the attribute.
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* @param boolean $params Return the parameters for this attribute
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* instead of its value.
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*
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* @return mixed (object) PEAR_Error if the attribute does not exist.
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* (string) The value of the attribute.
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* (array) The parameters for the attribute or
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* multiple values for an attribute.
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*/
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function getAttribute($name, $params = false)
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{
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$result = array();
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foreach ($this->_attributes as $attribute) {
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if ($attribute['name'] == $name) {
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if ($params) {
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$result[] = $attribute['params'];
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} else {
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$result[] = $attribute['value'];
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}
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}
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}
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if (count($result) == 0) {
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require_once 'PEAR.php';
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return PEAR::raiseError('Attribute "' . $name . '" Not Found');
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} if (count($result) == 1 && !$params) {
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return $result[0];
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} else {
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return $result;
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}
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}
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/**
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* Gets the values of an attribute as an array. Multiple values
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* are possible due to:
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*
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* a) multiplce occurences of 'name'
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* b) (unsecapd) comma seperated lists.
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*
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* So for a vcard like "KEY:a,b\nKEY:c" getAttributesValues('KEY')
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* will return array('a','b','c').
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*
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* @param string $name The name of the attribute.
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* @return mixed (object) PEAR_Error if the attribute does not exist.
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* (array) Multiple values for an attribute.
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*/
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function getAttributeValues($name)
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{
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$result = array();
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foreach ($this->_attributes as $attribute) {
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if ($attribute['name'] == $name) {
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$result = array_merge($attribute['values'], $result);
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}
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}
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if (!count($result)) {
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return PEAR::raiseError('Attribute "' . $name . '" Not Found');
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}
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return $result;
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}
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/**
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* Returns the value of an attribute, or a specified default value
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* if the attribute does not exist.
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*
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* @param string $name The name of the attribute.
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* @param mixed $default (optional) What to return if the attribute
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* specified by $name does not exist.
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*
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* @return mixed (string) The value of $name.
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* (mixed) $default if $name does not exist.
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*/
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function getAttributeDefault($name, $default = '')
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{
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$value = $this->getAttribute($name);
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return is_a($value, 'PEAR_Error') ? $default : $value;
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}
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/**
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* Remove all occurences of an attribute.
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*
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* @param string $name The name of the attribute.
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*/
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function removeAttribute($name)
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{
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$keys = array_keys($this->_attributes);
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foreach ($keys as $key) {
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if ($this->_attributes[$key]['name'] == $name) {
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unset($this->_attributes[$key]);
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}
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}
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}
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/**
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* Get attributes for all tags or for a given tag.
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*
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* @param string $tag (optional) return attributes for this tag.
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* or all attributes if not given
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* @return array Array containing all the attributes and their types.
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*/
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function getAllAttributes($tag = false)
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{
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if ($tag === false) {
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return $this->_attributes;
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}
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$result = array();
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foreach ($this->_attributes as $attribute) {
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if ($attribute['name'] == $tag) {
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$result[] = $attribute;
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}
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}
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return $result;
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}
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/**
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* Add a vCalendar component (eg vEvent, vTimezone, etc.).
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*
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* @param object Horde_iCalendar $component Component (subclass) to add.
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*/
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function addComponent($component)
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{
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if (is_a($component, 'Horde_iCalendar')) {
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$component->_container = &$this;
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$this->_components[] = &$component;
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}
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}
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/**
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* Retrieve all the components.
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*
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* @return array Array of Horde_iCalendar objects.
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*/
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function getComponents()
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{
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return $this->_components;
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}
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/**
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* Return the classes (entry types) we have.
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*
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* @return array Hash with class names Horde_iCalendar_xxx as keys
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* and number of components of this class as value.
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*/
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function getComponentClasses()
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{
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$r = array();
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foreach ($this->_components as $c) {
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$cn = strtolower(get_class($c));
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if (empty($r[$cn])) {
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$r[$cn] = 1;
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} else {
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$r[$cn]++;
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}
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}
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return $r;
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}
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/**
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* Number of components in this container.
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*
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* @return integer Number of components in this container.
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*/
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function getComponentCount()
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{
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return count($this->_components);
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}
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/**
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* Retrieve a specific component.
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*
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* @param integer $idx The index of the object to retrieve.
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*
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* @return mixed (boolean) False if the index does not exist.
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* (Horde_iCalendar_*) The requested component.
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*/
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function getComponent($idx)
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{
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if (isset($this->_components[$idx])) {
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return $this->_components[$idx];
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} else {
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return false;
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}
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}
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/**
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* Locates the first child component of the specified class, and
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* returns a reference to this component.
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*
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* @param string $type The type of component to find.
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*
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* @return mixed (boolean) False if no subcomponent of the specified
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* class exists.
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* (Horde_iCalendar_*) A reference to the requested component.
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*/
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function &findComponent($childclass)
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{
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# require_once 'Horde/String.php';
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# $childclass = 'Horde_iCalendar_' . String::lower($childclass);
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$childclass = 'Horde_iCalendar_' . strtolower($childclass);
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$keys = array_keys($this->_components);
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foreach ($keys as $key) {
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if (is_a($this->_components[$key], $childclass)) {
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return $this->_components[$key];
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}
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}
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return false;
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}
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/**
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* Clears the iCalendar object (resets the components and
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* attributes arrays).
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*/
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function clear()
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{
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$this->_components = array();
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$this->_attributes = array();
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}
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/**
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* Export as vCalendar format.
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*/
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function exportvCalendar()
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{
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// Default values.
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$requiredAttributes['VERSION'] = '2.0';
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$requiredAttributes['PRODID'] = '-//The Horde Project//Horde_iCalendar Library, Horde 3.0-cvs //EN';
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$requiredAttributes['METHOD'] = 'PUBLISH';
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foreach ($requiredAttributes as $name => $default_value) {
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if (is_a($this->getattribute($name), 'PEAR_Error')) {
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$this->setAttribute($name, $default_value);
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}
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}
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return $this->_exportvData('VCALENDAR') . $this->_newline;
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}
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/**
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* Export this entry as a hash array with tag names as keys.
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*
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* @param boolean (optional) $paramsInKeys
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* If false, the operation can be quite lossy as the
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* parameters are ignored when building the array keys.
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* So if you export a vcard with
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* LABEL;TYPE=WORK:foo
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* LABEL;TYPE=HOME:bar
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* the resulting hash contains only one label field!
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* If set to true, array keys look like 'LABEL;TYPE=WORK'
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* @return array A hash array with tag names as keys.
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*/
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function toHash($paramsInKeys = false)
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{
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$hash = array();
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foreach ($this->_attributes as $a) {
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$k = $a['name'];
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if ($paramsInKeys && is_array($a['params'])) {
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foreach ($a['params'] as $p => $v) {
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$k .= ";$p=$v";
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}
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}
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$hash[$k] = $a['value'];
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}
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return $hash;
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}
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/**
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* Parse a string containing vCalendar data.
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*
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* @param string $text The data to parse.
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* @param string $base The type of the base object.
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* @param string $charset (optional) The encoding charset for $text. Defaults to utf-8
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* @param boolean $clear (optional) True to clear() the iCal object before parsing.
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*
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* @return boolean True on successful import, false otherwise.
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*/
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function parsevCalendar($text, $base = 'VCALENDAR', $charset = 'utf-8', $clear = true)
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{
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if ($clear) {
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$this->clear();
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}
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if (preg_match('/(BEGIN:' . $base . '\r?\n)([\W\w]*)(END:' . $base . '\r?\n?)/i', $text, $matches)) {
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$vCal = $matches[2];
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} else {
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// Text isn't enclosed in BEGIN:VCALENDAR
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// .. END:VCALENDAR. We'll try to parse it anyway.
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$vCal = $text;
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}
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// All subcomponents.
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$matches = null;
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if (preg_match_all('/BEGIN:([\S]*)(\r\n|\r|\n)([\W\w]*)END:\1(\r\n|\r|\n)/U', $vCal, $matches)) {
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foreach ($matches[0] as $key => $data) {
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$type = $matches[1][$key];
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$component = &Horde_iCalendar::newComponent(trim($type), $this);
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if ($component === false) {
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return PEAR::raiseError("Unable to create object for type $type");
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}
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$component->parsevCalendar($data);
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$this->addComponent($component);
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// Remove from the vCalendar data.
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$vCal = str_replace($data, '', $vCal);
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}
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}
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// Unfold any folded lines.
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#$vCal = preg_replace ('/(\r|\n)+ /', ' ', $vCal);
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// Unfold "quoted printable" folded lines like:
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// BODY;ENCODING=QUOTED-PRINTABLE:=
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// another=20line=
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// last=20line
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# Horde::logMessage("SymcML: match 1", __FILE__, __LINE__, PEAR_LOG_DEBUG);
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# if (preg_match_all('/^([^:]+;\s*ENCODING=QUOTED-PRINTABLE(.*=[\r\n|\r|\n])+(.*[^=])[\r\n|\r|\n])/mU', $vCal, $matches)) {
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## if (preg_match_all('/^(BODY;ENCODING=QUOTED-PRINTABLE(.*=\r\n)+(.*)?\r?\n)/mU', $vCal, $matches)) {
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# Horde::logMessage("SymcML: match 2", __FILE__, __LINE__, PEAR_LOG_DEBUG);
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# foreach ($matches[1] as $s) {
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# Horde::logMessage("SymcML: match 3 $s", __FILE__, __LINE__, PEAR_LOG_DEBUG);
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# $r = preg_replace('/=[\r\n|\r|\n]/', '', $s);
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# Horde::logMessage("SymcML: match 4 $r", __FILE__, __LINE__, PEAR_LOG_DEBUG);
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# $vCal = str_replace($s, $r, $vCal);
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# }
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# }
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// Unfold "quoted printable" folded lines like:
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// BODY;ENCODING=QUOTED-PRINTABLE:=
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// another=20line=
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// last=20line
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#if (preg_match_all('/^([^:]+;\s*ENCODING=QUOTED-PRINTABLE(.*=*\s))/mU', $vCal, $matches)) {
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# $matches = preg_split('/=+\s/',$vCal);
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# $vCal = implode('',$matches);
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#}
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if (preg_match_all('/^([^:]+;\s*ENCODING=QUOTED-PRINTABLE(.*=*\s))/mU', $vCal, $matches)) {
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$matches = preg_split('/=(\r\n|\r|\n)/',$vCal);
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$vCal = implode('',$matches);
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}
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// Parse the remaining attributes.
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if (preg_match_all('/(.*):([^\r\n]*)[\r\n]+/', $vCal, $matches)) {
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foreach ($matches[0] as $attribute) {
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preg_match('/([^;^:]*)((;[^:]*)?):([^\r\n]*)[\r\n]*/', $attribute, $parts);
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$tag = $parts[1];
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$value = $parts[4];
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$params = array();
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// Parse parameters.
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if (!empty($parts[2])) {
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preg_match_all('/;(([^;=]*)(=([^;]*))?)/', $parts[2], $param_parts);
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foreach ($param_parts[2] as $key => $paramName) {
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$paramValue = $param_parts[4][$key];
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$params[$paramName] = $paramValue;
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}
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}
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// Charset and encoding handling.
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if ((isset($params['ENCODING'])
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&& $params['ENCODING'] == 'QUOTED-PRINTABLE')
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|| isset($params['QUOTED-PRINTABLE'])) {
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$value = quoted_printable_decode($value);
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// Quoted printable is normally encoded as utf-8.
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if (isset($params['CHARSET'])) {
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$value = $GLOBALS['egw']->translation->convert($value, $params['CHARSET']);
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} else {
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$value = $GLOBALS['egw']->translation->convert($value, 'utf-8');
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}
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}
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if (isset($params['CHARSET'])) {
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$value = $GLOBALS['egw']->translation->convert($value, $params['CHARSET']);
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} else {
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// As per RFC 2279, assume UTF8 if we don't have
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// an explicit charset parameter.
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$value = $GLOBALS['egw']->translation->convert($value, 'utf-8');
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}
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switch ($tag) {
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// Date fields.
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case 'DTSTAMP':
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case 'COMPLETED':
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case 'CREATED':
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case 'LAST-MODIFIED':
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case 'BDAY':
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$this->setAttribute($tag, $this->_parseDateTime($value), $params);
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break;
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case 'DTEND':
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case 'DTSTART':
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case 'DUE':
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case 'RECURRENCE-ID':
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if (isset($params['VALUE']) && $params['VALUE'] == 'DATE') {
|
|
$this->setAttribute($tag, $this->_parseDate($value), $params);
|
|
} else {
|
|
$this->setAttribute($tag, $this->_parseDateTime($value), $params);
|
|
}
|
|
break;
|
|
|
|
case 'RDATE':
|
|
if (isset($params['VALUE'])) {
|
|
if ($params['VALUE'] == 'DATE') {
|
|
$this->setAttribute($tag, $this->_parseDate($value), $params);
|
|
} elseif ($params['VALUE'] == 'PERIOD') {
|
|
$this->setAttribute($tag, $this->_parsePeriod($value), $params);
|
|
} else {
|
|
$this->setAttribute($tag, $this->_parseDateTime($value), $params);
|
|
}
|
|
} else {
|
|
$this->setAttribute($tag, $this->_parseDateTime($value), $params);
|
|
}
|
|
break;
|
|
|
|
case 'TRIGGER':
|
|
if (isset($params['VALUE'])) {
|
|
if ($params['VALUE'] == 'DATE-TIME') {
|
|
$this->setAttribute($tag, $this->_parseDateTime($value), $params);
|
|
} else {
|
|
$this->setAttribute($tag, $this->_parseDuration($value), $params);
|
|
}
|
|
} else {
|
|
$this->setAttribute($tag, $this->_parseDuration($value), $params);
|
|
}
|
|
break;
|
|
|
|
// Comma seperated dates.
|
|
case 'EXDATE':
|
|
$values = array();
|
|
$dates = array();
|
|
preg_match_all('/,([^,]*)/', ',' . $value, $values);
|
|
|
|
foreach ($values[1] as $value) {
|
|
if (isset($params['VALUE'])) {
|
|
if ($params['VALUE'] == 'DATE-TIME') {
|
|
$dates[] = $this->_parseDateTime($value);
|
|
} elseif ($params['VALUE'] == 'DATE') {
|
|
$dates[] = $this->_parseDate($value);
|
|
}
|
|
} else {
|
|
$dates[] = $this->_parseDateTime($value);
|
|
}
|
|
}
|
|
$this->setAttribute($tag, $dates, $params);
|
|
break;
|
|
|
|
// Duration fields.
|
|
case 'DURATION':
|
|
$this->setAttribute($tag, $this->_parseDuration($value), $params);
|
|
break;
|
|
|
|
// Period of time fields.
|
|
case 'FREEBUSY':
|
|
$values = array();
|
|
$periods = array();
|
|
preg_match_all('/,([^,]*)/', ',' . $value, $values);
|
|
foreach ($values[1] as $value) {
|
|
$periods[] = $this->_parsePeriod($value);
|
|
}
|
|
|
|
$this->setAttribute($tag, $periods, $params);
|
|
break;
|
|
|
|
// UTC offset fields.
|
|
case 'TZOFFSETFROM':
|
|
case 'TZOFFSETTO':
|
|
$this->setAttribute($tag, $this->_parseUtcOffset($value), $params);
|
|
break;
|
|
|
|
// Integer fields.
|
|
case 'PERCENT-COMPLETE':
|
|
case 'PRIORITY':
|
|
case 'REPEAT':
|
|
case 'SEQUENCE':
|
|
$this->setAttribute($tag, intval($value), $params);
|
|
break;
|
|
|
|
// Geo fields.
|
|
case 'GEO':
|
|
$floats = split(';', $value);
|
|
$value['latitude'] = floatval($floats[0]);
|
|
$value['longitude'] = floatval($floats[1]);
|
|
$this->setAttribute($tag, $value, $params);
|
|
break;
|
|
|
|
// Recursion fields.
|
|
case 'EXRULE':
|
|
case 'RRULE':
|
|
$this->setAttribute($tag, trim($value), $params);
|
|
break;
|
|
|
|
// ADR an N are lists seperated by unescaped semi-colons.
|
|
case 'ADR':
|
|
case 'N':
|
|
case 'ORG':
|
|
|
|
$value = trim($value);
|
|
// As of rfc 2426 2.4.2 semi-colon, comma, and
|
|
// colon must be escaped.
|
|
$value = str_replace('\\n', $this->_newline, $value);
|
|
$value = str_replace('\\,', ',', $value);
|
|
$value = str_replace('\\:', ':', $value);
|
|
|
|
// Split by unescaped semi-colons:
|
|
$values = preg_split('/(?<!\\\\);/',$value);
|
|
$value = str_replace('\\;', ';', $value);
|
|
$values = str_replace('\\;', ';', $values);
|
|
$this->setAttribute($tag, trim($value), $params, true, $values);
|
|
|
|
break;
|
|
|
|
// String fields.
|
|
default:
|
|
$value = trim($value);
|
|
// As of rfc 2426 2.4.2 semi-colon, comma, and
|
|
// colon must be escaped.
|
|
$value = str_replace('\\n', $this->_newline, $value);
|
|
$value = str_replace('\\;', ';', $value);
|
|
$value = str_replace('\\:', ':', $value);
|
|
|
|
// Split by unescaped commas:
|
|
$values = preg_split('/(?<!\\\\),/',$value);
|
|
$value = str_replace('\\,', ',', $value);
|
|
$values = str_replace('\\,', ',', $values);
|
|
|
|
$this->setAttribute($tag, trim($value), $params, true, $values);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/**
|
|
* Export this component in vCal format.
|
|
*
|
|
* @param string $base (optional) The type of the base object.
|
|
*
|
|
* @return string vCal format data.
|
|
*/
|
|
function _exportvData($base = 'VCALENDAR')
|
|
{
|
|
$result = 'BEGIN:' . strtoupper($base) . $this->_newline;
|
|
|
|
// Ensure that version is the first attribute.
|
|
$v = $this->getAttributeDefault('VERSION', false);
|
|
if ($v) {
|
|
$result .= 'VERSION:' . $v. $this->_newline;
|
|
}
|
|
|
|
foreach ($this->_attributes as $attribute) {
|
|
$name = $attribute['name'];
|
|
if ($name == 'VERSION') {
|
|
// Already done.
|
|
continue;
|
|
}
|
|
|
|
$params = $attribute['params'];
|
|
$params_str = '';
|
|
|
|
if (count($params)) {
|
|
foreach ($params as $param_name => $param_value) {
|
|
$params_str .= ";$param_name=$param_value";
|
|
}
|
|
}
|
|
|
|
$value = $attribute['value'];
|
|
switch ($name) {
|
|
// Date fields.
|
|
case 'DTSTAMP':
|
|
case 'COMPLETED':
|
|
case 'CREATED':
|
|
case 'DCREATED':
|
|
case 'LAST-MODIFIED':
|
|
$value = $this->_exportDateTime($value);
|
|
break;
|
|
|
|
case 'DTEND':
|
|
case 'DTSTART':
|
|
case 'DUE':
|
|
case 'RECURRENCE-ID':
|
|
if (isset($params['VALUE'])) {
|
|
if ($params['VALUE'] == 'DATE') {
|
|
$value = $this->_exportDate($value);
|
|
} else {
|
|
$value = $this->_exportDateTime($value);
|
|
}
|
|
} else {
|
|
$value = $this->_exportDateTime($value);
|
|
}
|
|
break;
|
|
|
|
case 'RDATE':
|
|
if (isset($params['VALUE'])) {
|
|
if ($params['VALUE'] == 'DATE') {
|
|
$value = $this->_exportDate($value);
|
|
} elseif ($params['VALUE'] == 'PERIOD') {
|
|
$value = $this->_exportPeriod($value);
|
|
} else {
|
|
$value = $this->_exportDateTime($value);
|
|
}
|
|
} else {
|
|
$value = $this->_exportDateTime($value);
|
|
}
|
|
break;
|
|
|
|
case 'TRIGGER':
|
|
if (isset($params['VALUE'])) {
|
|
if ($params['VALUE'] == 'DATE-TIME') {
|
|
$value = $this->_exportDateTime($value);
|
|
} elseif ($params['VALUE'] == 'DURATION') {
|
|
$value = $this->_exportDuration($value);
|
|
}
|
|
} else {
|
|
$value = $this->_exportDuration($value);
|
|
}
|
|
break;
|
|
|
|
// Duration fields.
|
|
case 'DURATION':
|
|
$value = $this->_exportDuration($value);
|
|
break;
|
|
|
|
// Period of time fields.
|
|
case 'FREEBUSY':
|
|
$value_str = '';
|
|
foreach ($value as $period) {
|
|
$value_str .= empty($value_str) ? '' : ',';
|
|
$value_str .= $this->_exportPeriod($period);
|
|
}
|
|
$value = $value_str;
|
|
break;
|
|
|
|
// UTC offset fields.
|
|
case 'TZOFFSETFROM':
|
|
case 'TZOFFSETTO':
|
|
$value = $this->_exportUtcOffset($value);
|
|
break;
|
|
|
|
// Integer fields.
|
|
case 'PERCENT-COMPLETE':
|
|
case 'PRIORITY':
|
|
case 'REPEAT':
|
|
case 'SEQUENCE':
|
|
$value = "$value";
|
|
break;
|
|
|
|
// Geo fields.
|
|
case 'GEO':
|
|
$value = $value['latitude'] . ',' . $value['longitude'];
|
|
break;
|
|
|
|
// Recurrence fields.
|
|
case 'EXRULE':
|
|
case 'RRULE':
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (!empty($params['ENCODING']) &&
|
|
$params['ENCODING'] == 'QUOTED-PRINTABLE' && strlen(trim($value)) > 0) {
|
|
$value = str_replace("\r", '', $value);
|
|
# $result .= "$name$params_str:=" . $this->_newline
|
|
# . $this->_quotedPrintableEncode($value)
|
|
# . $this->_newline;
|
|
$result .= "$name$params_str:"
|
|
. $this->_quotedPrintableEncode($value)
|
|
. $this->_newline;
|
|
} else {
|
|
# JVL: prevent : for empty values
|
|
# $attr_string = "$name$params_str:$value";
|
|
$attr_string = "$name$params_str";
|
|
$attr_string .= (!empty($value)) ? ":$value" : ';';
|
|
|
|
$result .= $this->_foldLine($attr_string) . $this->_newline;
|
|
}
|
|
}
|
|
|
|
foreach ($this->getComponents() as $component) {
|
|
$result .= $component->exportvCalendar() . $this->_newline;
|
|
}
|
|
|
|
$result .= 'END:' . $base;
|
|
|
|
return $result;
|
|
}
|
|
|
|
/**
|
|
* Parse a UTC Offset field.
|
|
*/
|
|
function _parseUtcOffset($text)
|
|
{
|
|
$offset = array();
|
|
if (preg_match('/(\+|-)([0-9]{2})([0-9]{2})([0-9]{2})?/', $text, $timeParts)) {
|
|
$offset['ahead'] = (boolean)($timeParts[1] == '+');
|
|
$offset['hour'] = intval($timeParts[2]);
|
|
$offset['minute'] = intval($timeParts[3]);
|
|
if (isset($timeParts[4])) {
|
|
$offset['second'] = intval($timeParts[4]);
|
|
}
|
|
return $offset;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Export a UTC Offset field.
|
|
*/
|
|
function _exportUtcOffset($value)
|
|
{
|
|
$offset = $value['ahead'] ? '+' : '-';
|
|
$offset .= sprintf('%02d%02d',
|
|
$value['hour'], $value['minute']);
|
|
if (isset($value['second'])) {
|
|
$offset .= sprintf('%02d', $value['second']);
|
|
}
|
|
|
|
return $offset;
|
|
}
|
|
|
|
/**
|
|
* Parse a Time Period field.
|
|
*/
|
|
function _parsePeriod($text)
|
|
{
|
|
$periodParts = split('/', $text);
|
|
|
|
$start = $this->_parseDateTime($periodParts[0]);
|
|
|
|
if ($duration = $this->_parseDuration($periodParts[1])) {
|
|
return array('start' => $start, 'duration' => $duration);
|
|
} elseif ($end = $this->_parseDateTime($periodParts[1])) {
|
|
return array('start' => $start, 'end' => $end);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Export a Time Period field.
|
|
*/
|
|
function _exportPeriod($value)
|
|
{
|
|
$period = $this->_exportDateTime($value['start']);
|
|
$period .= '/';
|
|
if (isset($value['duration'])) {
|
|
$period .= $this->_exportDuration($value['duration']);
|
|
} else {
|
|
$period .= $this->_exportDateTime($value['end']);
|
|
}
|
|
return $period;
|
|
}
|
|
|
|
/**
|
|
* Parse a DateTime field into a unix timestamp.
|
|
*/
|
|
function _parseDateTime($text)
|
|
{
|
|
$dateParts = split('T', $text);
|
|
if (count($dateParts) != 2 && !empty($text)) {
|
|
// Not a datetime field but may be just a date field.
|
|
if (!$date = $this->_parseDate($text)) {
|
|
return $date;
|
|
}
|
|
return @gmmktime(0, 0, 0, $date['month'], $date['mday'], $date['year']);
|
|
}
|
|
|
|
if (!$date = $this->_parseDate($dateParts[0])) {
|
|
return $date;
|
|
}
|
|
if (!$time = $this->_parseTime($dateParts[1])) {
|
|
return $time;
|
|
}
|
|
|
|
if ($time['zone'] == 'UTC') {
|
|
return @gmmktime($time['hour'], $time['minute'], $time['second'],
|
|
$date['month'], $date['mday'], $date['year']);
|
|
} else {
|
|
return @mktime($time['hour'], $time['minute'], $time['second'],
|
|
$date['month'], $date['mday'], $date['year']);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Export a DateTime field.
|
|
*/
|
|
function _exportDateTime($value)
|
|
{
|
|
$temp = array();
|
|
if (!is_object($value) || is_array($value)) {
|
|
$TZOffset = 3600 * substr(date('O'), 0, 3);
|
|
$TZOffset += 60 * substr(date('O'), 3, 2);
|
|
$value -= $TZOffset;
|
|
|
|
$temp['zone'] = 'UTC';
|
|
$temp['year'] = date('Y', $value);
|
|
$temp['month'] = date('n', $value);
|
|
$temp['mday'] = date('j', $value);
|
|
$temp['hour'] = date('G', $value);
|
|
$temp['minute'] = date('i', $value);
|
|
$temp['second'] = date('s', $value);
|
|
} else {
|
|
$dateOb = (object)$value;
|
|
|
|
// Minutes.
|
|
$TZOffset = substr(date('O'), 3, 2);
|
|
$thisMin = $dateOb->min - $TZOffset;
|
|
|
|
// Hours.
|
|
$TZOffset = substr(date('O'), 0, 3);
|
|
$thisHour = $dateOb->hour - $TZOffset;
|
|
|
|
if ($thisMin < 0) {
|
|
$thisHour -= 1;
|
|
$thisMin += 60;
|
|
}
|
|
|
|
if ($thisHour < 0) {
|
|
require_once 'Date/Calc.php';
|
|
$prevday = Date_Calc::prevDay($dateOb->mday, $dateOb->month, $dateOb->year);
|
|
$dateOb->mday = substr($prevday, 6, 2);
|
|
$dateOb->month = substr($prevday, 4, 2);
|
|
$dateOb->year = substr($prevday, 0, 4);
|
|
$thisHour += 24;
|
|
}
|
|
|
|
$temp['zone'] = 'UTC';
|
|
$temp['year'] = $dateOb->year;
|
|
$temp['month'] = $dateOb->month;
|
|
$temp['mday'] = $dateOb->mday;
|
|
$temp['hour'] = $thisHour;
|
|
$temp['minute'] = $dateOb->min;
|
|
$temp['second'] = $dateOb->sec;
|
|
}
|
|
|
|
return Horde_iCalendar::_exportDate($temp) . 'T' . Horde_iCalendar::_exportTime($temp);
|
|
}
|
|
|
|
/**
|
|
* Parse a Time field.
|
|
*/
|
|
function _parseTime($text)
|
|
{
|
|
if (preg_match('/([0-9]{2})([0-9]{2})([0-9]{2})(Z)?/', $text, $timeParts)) {
|
|
$time['hour'] = intval($timeParts[1]);
|
|
$time['minute'] = intval($timeParts[2]);
|
|
$time['second'] = intval($timeParts[3]);
|
|
if (isset($timeParts[4])) {
|
|
$time['zone'] = 'UTC';
|
|
} else {
|
|
$time['zone'] = 'Local';
|
|
}
|
|
return $time;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Export a Time field.
|
|
*/
|
|
function _exportTime($value)
|
|
{
|
|
$time = sprintf('%02d%02d%02d',
|
|
$value['hour'], $value['minute'], $value['second']);
|
|
if ($value['zone'] == 'UTC') {
|
|
$time .= 'Z';
|
|
}
|
|
return $time;
|
|
}
|
|
|
|
/**
|
|
* Parse a Date field.
|
|
*/
|
|
function _parseDate($text)
|
|
{
|
|
if (strlen($text) != 8) {
|
|
return false;
|
|
}
|
|
|
|
$date['year'] = intval(substr($text, 0, 4));
|
|
$date['month'] = intval(substr($text, 4, 2));
|
|
$date['mday'] = intval(substr($text, 6, 2));
|
|
|
|
return $date;
|
|
}
|
|
|
|
/**
|
|
* Export a Date field.
|
|
*/
|
|
function _exportDate($value)
|
|
{
|
|
return sprintf('%04d%02d%02d',
|
|
$value['year'], $value['month'], $value['mday']);
|
|
}
|
|
|
|
/**
|
|
* Parse a Duration Value field.
|
|
*/
|
|
function _parseDuration($text)
|
|
{
|
|
if (preg_match('/([+]?|[-])P(([0-9]+W)|([0-9]+D)|)(T(([0-9]+H)|([0-9]+M)|([0-9]+S))+)?/', trim($text), $durvalue)) {
|
|
// Weeks.
|
|
$duration = 7 * 86400 * intval($durvalue[3]);
|
|
|
|
if (count($durvalue) > 4) {
|
|
// Days.
|
|
$duration += 86400 * intval($durvalue[4]);
|
|
}
|
|
if (count($durvalue) > 5) {
|
|
// Hours.
|
|
$duration += 3600 * intval($durvalue[7]);
|
|
|
|
// Mins.
|
|
if (isset($durvalue[8])) {
|
|
$duration += 60 * intval($durvalue[8]);
|
|
}
|
|
|
|
// Secs.
|
|
if (isset($durvalue[9])) {
|
|
$duration += intval($durvalue[9]);
|
|
}
|
|
}
|
|
|
|
// Sign.
|
|
if ($durvalue[1] == "-") {
|
|
$duration *= -1;
|
|
}
|
|
|
|
return $duration;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Export a duration value.
|
|
*/
|
|
function _exportDuration($value)
|
|
{
|
|
$duration = '';
|
|
if ($value < 0) {
|
|
$value *= -1;
|
|
$duration .= '-';
|
|
}
|
|
$duration .= 'P';
|
|
|
|
$weeks = floor($value / (7 * 86400));
|
|
$value = $value % (7 * 86400);
|
|
if ($weeks) {
|
|
$duration .= $weeks . 'W';
|
|
}
|
|
|
|
$days = floor($value / (86400));
|
|
$value = $value % (86400);
|
|
if ($days) {
|
|
$duration .= $days . 'D';
|
|
}
|
|
|
|
if ($value) {
|
|
$duration .= 'T';
|
|
|
|
$hours = floor($value / 3600);
|
|
$value = $value % 3600;
|
|
if ($hours) {
|
|
$duration .= $hours . 'H';
|
|
}
|
|
|
|
$mins = floor($value / 60);
|
|
$value = $value % 60;
|
|
if ($mins) {
|
|
$duration .= $mins . 'M';
|
|
}
|
|
|
|
if ($value) {
|
|
$duration .= $value . 'S';
|
|
}
|
|
}
|
|
|
|
return $duration;
|
|
}
|
|
|
|
/**
|
|
* Return the folded version of a line.
|
|
* JVL rewritten to fold on any ; or: or = if present before column 75
|
|
* this is still rfc2445 section 4.1 compliant
|
|
*/
|
|
function _foldLine($line)
|
|
{
|
|
$line = preg_replace("/\r\n|\n|\r/", '\n', $line);
|
|
if (strlen($line) > 75) {
|
|
$foldedline = '';
|
|
while (!empty($line)) {
|
|
$maxLine = substr($line, 0, 75);
|
|
$cutPoint = 1+max(is_numeric($p1 = strrpos($maxLine,';')) ? $p1 : -1,
|
|
is_numeric($p1 = strrpos($maxLine,':')) ? $p1 : -1,
|
|
is_numeric($p1 = strrpos($maxLine,'=')) ? $p1 : -1);
|
|
if ($cutPoint < 1) // nothing found, then fold complete maxLine
|
|
$cutPoint = 75;
|
|
// now fold [0..(cutPoint-1)]
|
|
$foldedline .= (empty($foldedline))
|
|
? substr($line, 0, $cutPoint)
|
|
: $this->_newline . ' ' . substr($line, 0, $cutPoint);
|
|
|
|
$line = (strlen($line) <= $cutPoint)
|
|
? ''
|
|
: substr($line, $cutPoint);
|
|
|
|
if (strlen($line) < 75) {
|
|
$foldedline .= $this->_newline . ' ' . $line;
|
|
$line = '';
|
|
}
|
|
|
|
}
|
|
return $foldedline;
|
|
}
|
|
return $line;
|
|
}
|
|
|
|
/**
|
|
* Convert an 8bit string to a quoted-printable string according
|
|
* to RFC2045, section 6.7.
|
|
*
|
|
* Uses imap_8bit if available.
|
|
*
|
|
* @param string $input The string to be encoded.
|
|
*
|
|
* @return string The quoted-printable encoded string.
|
|
*/
|
|
function _quotedPrintableEncode($input = '')
|
|
{
|
|
return $this->EncodeQP($input);
|
|
|
|
#$input = preg_replace('!(\r\n|\r|\n)!',"\n",$input);
|
|
|
|
// If imap_8bit() is available, use it.
|
|
if (function_exists('imap_8bit')) {
|
|
$retValue = imap_8bit($input);
|
|
#$retValue = preg_replace('/=0A/',"=0D=0A=\r\n",$retValue);
|
|
return $retValue;
|
|
}
|
|
|
|
// Rather dumb replacment: just encode everything.
|
|
$hex = array('0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
|
|
'A', 'B', 'C', 'D', 'E', 'F');
|
|
|
|
$output = '';
|
|
$len = strlen($input);
|
|
for ($i = 0; $i < $len; ++$i) {
|
|
$c = substr($input, $i, 1);
|
|
$dec = ord($c);
|
|
$output .= '=' . $hex[floor($dec / 16)] . $hex[floor($dec % 16)];
|
|
if (($i + 1) % 25 == 0) {
|
|
$output .= "=\r\n";
|
|
}
|
|
}
|
|
return $output;
|
|
}
|
|
var $LE = "\r\n";
|
|
|
|
/**
|
|
* Encode string to quoted-printable.
|
|
* @access private
|
|
* @return string
|
|
*/
|
|
function EncodeQP_old ($str) {
|
|
$encoded = $this->FixEOL($str);
|
|
#$encoded = $str;
|
|
#if (substr($encoded, -(strlen($this->LE))) != $this->LE)
|
|
# $encoded .= $this->LE;
|
|
|
|
// Replace every high ascii, control and = characters
|
|
#$encoded = preg_replace('/([\000-\010\013\014\016-\037\075\177-\377])/e',
|
|
# "'='.sprintf('%02X', ord('\\1'))", $encoded);
|
|
$encoded = preg_replace('/([\000-\012\015\016\020-\037\075\177-\377])/e',
|
|
"'='.sprintf('%02X', ord('\\1'))", $encoded);
|
|
// Replace every spaces and tabs when it's the last character on a line
|
|
#$encoded = preg_replace("/([\011\040])".$this->LE."/e",
|
|
# "'='.sprintf('%02X', ord('\\1')).'".$this->LE."'", $encoded);
|
|
$encoded = preg_replace("/([\011\040])".$this->LE."/e",
|
|
"'='.sprintf('%02X', ord('\\1')).'".$this->LE."'", $encoded);
|
|
|
|
// Maximum line length of 76 characters before CRLF (74 + space + '=')
|
|
$encoded = $this->WrapText($encoded, 74, true);
|
|
|
|
return $encoded;
|
|
}
|
|
|
|
/**
|
|
* Wraps message for use with mailers that do not
|
|
* automatically perform wrapping and for quoted-printable.
|
|
* Original written by philippe.
|
|
* @access private
|
|
* @return string
|
|
*/
|
|
function WrapText_old($message, $length, $qp_mode = false) {
|
|
$soft_break = ($qp_mode) ? "=\r\n" : $this->LE;
|
|
|
|
#$message = $this->FixEOL($message);
|
|
if (substr($message, -1) == $this->LE)
|
|
$message = substr($message, 0, -1);
|
|
|
|
$line = explode("=0D=0A", $message);
|
|
$message = "";
|
|
for ($i=0 ;$i < count($line); $i++)
|
|
{
|
|
$line_part = explode(" ", $line[$i]);
|
|
$buf = "";
|
|
for ($e = 0; $e<count($line_part); $e++)
|
|
{
|
|
$word = $line_part[$e];
|
|
if ($qp_mode and (strlen($word) > $length))
|
|
{
|
|
$space_left = $length - strlen($buf) - 1;
|
|
if ($e != 0)
|
|
{
|
|
if ($space_left > 20)
|
|
{
|
|
$len = $space_left;
|
|
if (substr($word, $len - 1, 1) == "=")
|
|
$len--;
|
|
elseif (substr($word, $len - 2, 1) == "=")
|
|
$len -= 2;
|
|
$part = substr($word, 0, $len);
|
|
$word = substr($word, $len);
|
|
$buf .= " " . $part;
|
|
$message .= $buf . sprintf("=%s", $this->LE);
|
|
}
|
|
else
|
|
{
|
|
$message .= $buf . $soft_break;
|
|
}
|
|
$buf = "";
|
|
}
|
|
while (strlen($word) > 0)
|
|
{
|
|
$len = $length;
|
|
if (substr($word, $len - 1, 1) == "=")
|
|
$len--;
|
|
elseif (substr($word, $len - 2, 1) == "=")
|
|
$len -= 2;
|
|
$part = substr($word, 0, $len);
|
|
$word = substr($word, $len);
|
|
|
|
if (strlen($word) > 0)
|
|
$message .= $part . sprintf("=%s", $this->LE);
|
|
else
|
|
$buf = $part;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
$buf_o = $buf;
|
|
$buf .= ($e == 0) ? $word : (" " . $word);
|
|
|
|
if (strlen($buf) > $length and $buf_o != "")
|
|
{
|
|
$message .= $buf_o . $soft_break;
|
|
$buf = $word;
|
|
}
|
|
}
|
|
}
|
|
$message .= $buf;
|
|
if((count($line)-1) > $i)
|
|
$message .= "=0D=0A=\r\n";
|
|
}
|
|
|
|
return $message;
|
|
}
|
|
/**
|
|
* Changes every end of line from CR or LF to CRLF.
|
|
* @access private
|
|
* @return string
|
|
*/
|
|
function FixEOL($str) {
|
|
$str = str_replace("\r\n", "\n", $str);
|
|
$str = str_replace("\r", "\n", $str);
|
|
$str = str_replace("\n", $this->LE, $str);
|
|
return $str;
|
|
}
|
|
|
|
/**
|
|
* Encode string to quoted-printable.
|
|
* @access private
|
|
* @return string
|
|
*/
|
|
function EncodeQP ($str) {
|
|
$encoded = $this->FixEOL($str);
|
|
if (substr($encoded, -(strlen($this->LE))) != $this->LE)
|
|
$encoded .= $this->LE;
|
|
|
|
// Replace every high ascii, control and = characters
|
|
#$encoded = preg_replace('/([\000-\010\013\014\016-\037\075\177-\377])/e',
|
|
# "'='.sprintf('%02X', ord('\\1'))", $encoded);
|
|
$encoded = preg_replace('/([\000-\012\015\016\020-\037\075\177-\377])/e',
|
|
"'='.sprintf('%02X', ord('\\1'))", $encoded);
|
|
// Replace every spaces and tabs when it's the last character on a line
|
|
$encoded = preg_replace("/([\011\040])".$this->LE."/e",
|
|
"'='.sprintf('%02X', ord('\\1')).'".$this->LE."'", $encoded);
|
|
|
|
// Maximum line length of 76 characters before CRLF (74 + space + '=')
|
|
#$encoded = $this->WrapText($encoded, 74, true);
|
|
|
|
return $encoded;
|
|
}
|
|
|
|
/**
|
|
* Wraps message for use with mailers that do not
|
|
* automatically perform wrapping and for quoted-printable.
|
|
* Original written by philippe.
|
|
* @access private
|
|
* @return string
|
|
*/
|
|
function WrapText($message, $length, $qp_mode = false) {
|
|
$soft_break = ($qp_mode) ? sprintf(" =%s", $this->LE) : $this->LE;
|
|
$soft_break = "..=";
|
|
|
|
$message = $this->FixEOL($message);
|
|
if (substr($message, -1) == $this->LE)
|
|
$message = substr($message, 0, -1);
|
|
|
|
$line = explode($this->LE, $message);
|
|
$message = "";
|
|
for ($i=0 ;$i < count($line); $i++)
|
|
{
|
|
$line_part = explode(" ", $line[$i]);
|
|
$buf = "";
|
|
for ($e = 0; $e<count($line_part); $e++)
|
|
{
|
|
$word = $line_part[$e];
|
|
if ($qp_mode and (strlen($word) > $length))
|
|
{
|
|
$space_left = $length - strlen($buf) - 1;
|
|
if ($e != 0)
|
|
{
|
|
if ($space_left > 20)
|
|
{
|
|
$len = $space_left;
|
|
if (substr($word, $len - 1, 1) == "=")
|
|
$len--;
|
|
elseif (substr($word, $len - 2, 1) == "=")
|
|
$len -= 2;
|
|
$part = substr($word, 0, $len);
|
|
$word = substr($word, $len);
|
|
$buf .= " " . $part;
|
|
$message .= $buf . sprintf("=%s", $this->LE);
|
|
}
|
|
else
|
|
{
|
|
$message .= $buf . $soft_break;
|
|
}
|
|
$buf = "";
|
|
}
|
|
while (strlen($word) > 0)
|
|
{
|
|
$len = $length;
|
|
if (substr($word, $len - 1, 1) == "=")
|
|
$len--;
|
|
elseif (substr($word, $len - 2, 1) == "=")
|
|
$len -= 2;
|
|
$part = substr($word, 0, $len);
|
|
$word = substr($word, $len);
|
|
|
|
if (strlen($word) > 0)
|
|
$message .= $part . sprintf("=%s", $this->LE);
|
|
else
|
|
$buf = $part;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
$buf_o = $buf;
|
|
$buf .= ($e == 0) ? $word : (" " . $word);
|
|
|
|
if (strlen($buf) > $length and $buf_o != "")
|
|
{
|
|
$message .= $buf_o . $soft_break;
|
|
$buf = $word;
|
|
}
|
|
}
|
|
}
|
|
$message .= $buf . $this->LE;
|
|
}
|
|
|
|
return $message;
|
|
}
|
|
|
|
}
|