removed CalFileParser, which does not support recurring events after all.
This commit is contained in:
Harald Milz
parent
d0d6050103
commit
121af7ba1f
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@ -1,372 +0,0 @@
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<?php
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/*
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* CalFileParser
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*
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* Parser for iCal and vCal files. Reads event information and
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* outputs data into an Array or JSON
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*
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* @author Michael Mottola <mikemottola@gmail.com>
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* @license MIT
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* @version 1.0
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* URL https://github.com/controlz/CalFileParser
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*
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*/
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class CalFileParser {
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private $_base_path = './';
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private $_file_name = '';
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private $_output = 'array';
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private $DTfields = array('DTSTART', 'DTEND', 'DTSTAMP', 'CREATED', 'EXDATE', 'LAST-MODIFIED');
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private $_user_timezone = null;
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private $_file_timezone = null;
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function __construct() {
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$this->_default_output = $this->_output;
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}
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public function set_base_path($path) {
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if (isset($path)) {
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$this->_base_path = $path;
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}
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}
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public function set_file_name($filename) {
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if (!empty($filename)) {
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$this->_file_name = $filename;
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}
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}
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public function set_output($output) {
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if (!empty($output)) {
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$this->_output = $output;
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}
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}
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public function set_timezone($timezone) {
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if (!empty($timezone)) {
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$this->_user_timezone = $timezone;
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}
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}
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public function get_base_path() {
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return $this->_base_path;
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}
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public function get_file_name() {
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return $this->_file_name;
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}
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public function get_output() {
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return $this->_output;
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}
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/**
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* Read File
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*
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* @param string $file
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* @return string
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*
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* @example
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* read_file('schedule.vcal')
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* read_file('../2011-08/'schedule.vcal');
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* read_file('http://michaelencode.com/example.vcal');
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*/
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public function read_file($file = '') {
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if (empty($file)) {
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$file = $this->_file_name;
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}
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// check to see if file path is a url
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if (preg_match('/^(http|https):/', $file) === 1) {
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return $this->read_remote_file($file);
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}
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//empty base path if file starts with forward-slash
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if (substr($file, 0, 1) === '/') {
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$this->set_base_path('');
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}
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if (!empty($file) && file_exists($this->_base_path . $file)) {
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$file_contents = file_get_contents($this->_base_path . $file);
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return $file_contents;
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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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* Read Remote File
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* @param $file
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* @return bool|string
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*/
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public function read_remote_file($file) {
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if (!empty($file)) {
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$data = file_get_contents($file);
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if ($data !== false) {
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return $data;
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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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* Parse
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* Parses iCal or vCal file and returns data of a type that is specified
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* @param string $file
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* @param string $output
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* @return mixed|string
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*/
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public function parse($file = '', $output = '') {
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$file_contents = $this->read_file($file);
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if ($file_contents === false) {
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return 'Error: File Could not be read';
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}
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if (empty($output)) {
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$output = $this->_output;
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}
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if (empty($output)) {
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$output = $this->_default_output;
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}
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$events_arr = array();
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// fetch timezone to create datetime object
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if (preg_match('/X-WR-TIMEZONE:(.+)/i', $file_contents, $timezone) === 1) {
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$this->_file_timezone = trim($timezone[1]);
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if ($this->_user_timezone == null) {
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$this->_user_timezone = $this->_file_timezone;
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}
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} else {
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$this->_file_timezone = $this->_user_timezone;
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}
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// tell user if setting timezone is necessary
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if ($this->_user_timezone == null) {
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return 'Error: no timezone set or found';
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}
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//put contains between start and end of VEVENT into array called $events
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preg_match_all('/(BEGIN:VEVENT.*?END:VEVENT)/si', $file_contents, $events);
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if (!empty($events)) {
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foreach ($events[0] as $event_str) {
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//remove begin and end "tags"
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$event_str = trim(str_replace(array('BEGIN:VEVENT','END:VEVENT'),'',$event_str));
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//convert string of entire event into an array with elements containing string of 'key:value'
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$event_key_pairs = $this->convert_event_string_to_array($event_str);
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//convert array of 'key:value' strings to an array of key => values
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$events_arr[] = $this->convert_key_value_strings($event_key_pairs);
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}
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}
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$this->_output = $this->_default_output;
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return $this->output($events_arr, $output);
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}
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/**
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* Output
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* outputs data in the format specified
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*
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* @param $events_arr
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* @param string $output
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* @return mixed
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*/
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private function output($events_arr, $output = 'array') {
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switch ($output) {
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case 'json' :
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return json_encode($events_arr);
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break;
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default :
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return $events_arr;
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break;
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}
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}
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/**
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* Convert event string to array
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* accepts a string of calendar event data and produces array of 'key:value' strings
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* See convert_key_value_strings() to convert strings to
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* @param string $event_str
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* @return array
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*/
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private function convert_event_string_to_array($event_str = '') {
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if (!empty($event_str)) {
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//replace new lines with a custom delimiter
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$event_str = preg_replace("/[\r\n]/", "%%" ,$event_str);
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// take care of line wrapping
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$event_str = preg_replace("/%%%% /", "" ,$event_str);
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if (strpos(substr($event_str, 2), '%%') == '0') { //if this code is executed, then file consisted of one line causing previous tactic to fail
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$tmp_piece = explode(':',$event_str);
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$num_pieces = count($tmp_piece);
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$event_str = '';
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foreach ($tmp_piece as $key => $item_str) {
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if ($key != ($num_pieces -1) ) {
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//split at spaces
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$tmp_pieces = preg_split('/\s/',$item_str);
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//get the last whole word in the string [item]
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$last_word = end($tmp_pieces);
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//adds delimiter to front and back of item string, and also between each new key
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$item_str = trim(str_replace(array($last_word,' %%' . $last_word),array('%%' . $last_word . ':', '%%' . $last_word), $item_str));
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}
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//build the event string back together, piece by piece
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$event_str .= trim($item_str);
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}
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}
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//perform some house cleaning just in case
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$event_str = str_replace('%%%%','%%', $event_str);
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if (substr($event_str, 0, 2) == '%%') {
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$event_str = substr($event_str, 2);
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}
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//break string into array elements at custom delimiter
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$return = explode('%%',$event_str);
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} else {
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$return = array();
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}
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return $return;
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}
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/**
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* Parse Key Value String
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* accepts an array of strings in the format of 'key:value' and returns an array of keys and values
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* @param array $event_key_pairs
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* @return array
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*/
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private function convert_key_value_strings($event_key_pairs = array()) {
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$event = array();
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$event_alarm = array();
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$event_alarms = array();
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$inside_alarm = false;
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if (!empty($event_key_pairs)) {
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foreach ($event_key_pairs as $line) {
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if (empty($line)) continue;
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$line_data = explode(':', $line, 2);
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$key = trim((isset($line_data[0])) ? $line_data[0] : "");
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$value = trim((isset($line_data[1])) ? $line_data[1] : "");
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// we are parsing an alarm for this event
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if ($key == "BEGIN" && $value == "VALARM") {
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$inside_alarm = true;
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$event_alarm = array();
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continue;
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}
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// we finished parsing an alarm for this event
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if ($key == "END" && $value == "VALARM") {
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$inside_alarm = false;
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$event_alarms[] = $event_alarm;
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continue;
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}
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// autoconvert datetime fields to DateTime object
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$date_key = (strstr($key,";")) ? strstr($key,";", true) : $key;
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$date_format = (strstr($key,";")) ? strstr($key,";") : ";VALUE=DATE-TIME";
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if (in_array($date_key, $this->DTfields)) {
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// set date key without format
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$key = $date_key;
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$timezone = $this->_file_timezone;
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// found time zone in date format info
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if (strstr($date_format,"TZID")) {
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$strstr = strstr($date_format,"TZID");
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$timezone = substr($strstr, 5);
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}
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// process all dates if there are more then one and comma seperated
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$processed_value = array();
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foreach(explode(",", $value) AS $date_value) {
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// this is simply a date
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if ($date_format == ";VALUE=DATE") $date_value .= "T000000";
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// date-time in UTC
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if (substr($date_value, -1) == "Z") $timezone = "UTC";
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// format date
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$date = DateTime::createFromFormat('Ymd\THis', str_replace('Z', '', $date_value), new DateTimeZone($timezone));
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if ($date !== false) $date->setTimezone(new DateTimeZone($this->_user_timezone));
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if ($date !== false) $processed_value[] = $date;
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}
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// we have more then one date value then return it as an array
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if (count($processed_value) > 1) {
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$value = $processed_value;
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} else {
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if ($date !== false) $value = $date;
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}
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}
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// check if current key was already set
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// if this is the case then add value data and turn it into an array
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$value_current_key = false;
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if ($inside_alarm) {
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if (isset($event_alarm[$key])) $value_current_key = $event_alarm[$key];
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} else {
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if (isset($event[$key])) $value_current_key = $event[$key];
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}
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// this current key already has data add more
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if ($value_current_key !== false) {
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// check if data is array and merge
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if (is_array($value_current_key)) {
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if (is_array($value)) {
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$value = array_merge($value_current_key, $value);
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} else {
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$value = array_merge($value_current_key, array($value));
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}
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} else {
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if (is_array($value)) {
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$value = array_merge(array($value_current_key), $value);
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} else {
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$value = array($value_current_key, $value);
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}
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}
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}
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if ($inside_alarm) {
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$event_alarm[$key] = $value;
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} else {
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$event[$key] = $value;
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}
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}
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}
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// add alarm data
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$event["VALARM"] = $event_alarms;
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// unescape every element if string.
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return array_map(function($value) {
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return (is_string($value) ? stripcslashes($value) : $value);
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}, $event);
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}
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}
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@ -53,7 +53,7 @@ function gcal_import_worker()
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error_log ("gcal_import_worker finished", 0);
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}
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include ('CalFileParser.php');
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// include ('CalFileParser.php');
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function gcal_import_process_category($category) {
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global $wpdb;
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