402 lines
12 KiB
PHP
Executable File
402 lines
12 KiB
PHP
Executable File
<?php
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/**
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* Copyright (c) 2011 Jakob Sack <mail@jakobsack.de>
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* This file is licensed under the Affero General Public License version 3 or
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* later.
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* See the COPYING-README file.
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*/
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/**
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*
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* The following SQL statement is just a help for developers and will not be
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* executed!
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*
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* CREATE TABLE clndr_calendars (
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* id INTEGER UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
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* userid VARCHAR(255),
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* displayname VARCHAR(100),
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* uri VARCHAR(100),
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* active INTEGER UNSIGNED NOT NULL DEFAULT '0',
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* ctag INTEGER UNSIGNED NOT NULL DEFAULT '0',
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* calendarorder INTEGER UNSIGNED NOT NULL DEFAULT '0',
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* calendarcolor VARCHAR(10),
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* timezone TEXT,
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* components VARCHAR(20)
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* );
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*
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*/
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/**
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* This class manages our calendars
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*/
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class OC_Calendar_Calendar{
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/**
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* @brief Returns the list of calendars for a specific user.
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* @param string $uid User ID
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* @param boolean $active Only return calendars with this $active state, default(=false) is don't care
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* @return array
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*/
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public static function allCalendars($uid, $active=false) {
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$values = array($uid);
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$active_where = '';
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if (!is_null($active) && $active) {
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$active_where = ' AND `active` = ?';
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$values[] = (int)$active;
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}
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$stmt = OCP\DB::prepare( 'SELECT * FROM `*PREFIX*clndr_calendars` WHERE `userid` = ?' . $active_where );
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$result = $stmt->execute($values);
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$calendars = array();
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while( $row = $result->fetchRow()) {
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$row['permissions'] = OCP\PERMISSION_CREATE
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| OCP\PERMISSION_READ | OCP\PERMISSION_UPDATE
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| OCP\PERMISSION_DELETE | OCP\PERMISSION_SHARE;
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$calendars[] = $row;
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}
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$calendars = array_merge($calendars, OCP\Share::getItemsSharedWith('calendar', OC_Share_Backend_Calendar::FORMAT_CALENDAR));
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return $calendars;
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}
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/**
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* @brief Returns the list of calendars for a principal (DAV term of user)
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* @param string $principaluri
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* @return array
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*/
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public static function allCalendarsWherePrincipalURIIs($principaluri) {
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$uid = self::extractUserID($principaluri);
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return self::allCalendars($uid);
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}
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/**
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* @brief Gets the data of one calendar
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* @param integer $id
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* @return associative array
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*/
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public static function find($id) {
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$stmt = OCP\DB::prepare( 'SELECT * FROM `*PREFIX*clndr_calendars` WHERE `id` = ?' );
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$result = $stmt->execute(array($id));
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$row = $result->fetchRow();
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if($row['userid'] != OCP\USER::getUser() && !OC_Group::inGroup(OCP\User::getUser(), 'admin')) {
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$sharedCalendar = OCP\Share::getItemSharedWithBySource('calendar', $id);
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if (!$sharedCalendar || !($sharedCalendar['permissions'] & OCP\PERMISSION_READ)) {
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return $row; // I have to return the row so e.g. OC_Calendar_Object::getowner() works.
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}
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$row['permissions'] = $sharedCalendar['permissions'];
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} else {
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$row['permissions'] = OCP\PERMISSION_ALL;
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}
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return $row;
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}
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/**
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* @brief Creates a new calendar
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* @param string $userid
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* @param string $name
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* @param string $components Default: "VEVENT,VTODO,VJOURNAL"
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* @param string $timezone Default: null
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* @param integer $order Default: 1
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* @param string $color Default: null, format: '#RRGGBB(AA)'
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* @return insertid
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*/
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public static function addCalendar($userid,$name,$components='VEVENT,VTODO,VJOURNAL',$timezone=null,$order=0,$color=null) {
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$all = self::allCalendars($userid);
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$uris = array();
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foreach($all as $i) {
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$uris[] = $i['uri'];
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}
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$uri = self::createURI($name, $uris );
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$stmt = OCP\DB::prepare( 'INSERT INTO `*PREFIX*clndr_calendars` (`userid`,`displayname`,`uri`,`ctag`,`calendarorder`,`calendarcolor`,`timezone`,`components`) VALUES(?,?,?,?,?,?,?,?)' );
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$result = $stmt->execute(array($userid,$name,$uri,1,$order,$color,$timezone,$components));
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$insertid = OCP\DB::insertid('*PREFIX*clndr_calendars');
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OCP\Util::emitHook('OC_Calendar', 'addCalendar', $insertid);
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return $insertid;
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}
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/**
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* @brief Creates default calendars
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* @param string $userid
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* @return boolean
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*/
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public static function addDefaultCalendars($userid = null) {
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if(is_null($userid)) {
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$userid = OCP\USER::getUser();
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}
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$id = self::addCalendar($userid,'Default calendar');
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return true;
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}
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/**
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* @brief Creates a new calendar from the data sabredav provides
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* @param string $principaluri
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* @param string $uri
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* @param string $name
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* @param string $components
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* @param string $timezone
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* @param integer $order
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* @param string $color format: '#RRGGBB(AA)'
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* @return insertid
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*/
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public static function addCalendarFromDAVData($principaluri,$uri,$name,$components,$timezone,$order,$color) {
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$userid = self::extractUserID($principaluri);
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$stmt = OCP\DB::prepare( 'INSERT INTO `*PREFIX*clndr_calendars` (`userid`,`displayname`,`uri`,`ctag`,`calendarorder`,`calendarcolor`,`timezone`,`components`) VALUES(?,?,?,?,?,?,?,?)' );
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$result = $stmt->execute(array($userid,$name,$uri,1,$order,$color,$timezone,$components));
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$insertid = OCP\DB::insertid('*PREFIX*clndr_calendars');
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OCP\Util::emitHook('OC_Calendar', 'addCalendar', $insertid);
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return $insertid;
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}
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/**
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* @brief Edits a calendar
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* @param integer $id
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* @param string $name Default: null
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* @param string $components Default: null
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* @param string $timezone Default: null
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* @param integer $order Default: null
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* @param string $color Default: null, format: '#RRGGBB(AA)'
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* @return boolean
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*
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* Values not null will be set
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*/
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public static function editCalendar($id,$name=null,$components=null,$timezone=null,$order=null,$color=null) {
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// Need these ones for checking uri
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$calendar = self::find($id);
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if ($calendar['userid'] != OCP\User::getUser() && !OC_Group::inGroup(OCP\User::getUser(), 'admin')) {
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$sharedCalendar = OCP\Share::getItemSharedWithBySource('calendar', $id);
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if (!$sharedCalendar || !($sharedCalendar['permissions'] & OCP\PERMISSION_UPDATE)) {
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throw new Exception(
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OC_Calendar_App::$l10n->t(
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'You do not have the permissions to update this calendar.'
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)
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);
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}
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}
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// Keep old stuff
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if(is_null($name)) $name = $calendar['displayname'];
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if(is_null($components)) $components = $calendar['components'];
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if(is_null($timezone)) $timezone = $calendar['timezone'];
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if(is_null($order)) $order = $calendar['calendarorder'];
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if(is_null($color)) $color = $calendar['calendarcolor'];
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$stmt = OCP\DB::prepare( 'UPDATE `*PREFIX*clndr_calendars` SET `displayname`=?,`calendarorder`=?,`calendarcolor`=?,`timezone`=?,`components`=?,`ctag`=`ctag`+1 WHERE `id`=?' );
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$result = $stmt->execute(array($name,$order,$color,$timezone,$components,$id));
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OCP\Util::emitHook('OC_Calendar', 'editCalendar', $id);
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return true;
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}
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/**
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* @brief Sets a calendar (in)active
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* @param integer $id
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* @param boolean $active
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* @return boolean
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*/
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public static function setCalendarActive($id,$active) {
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$calendar = self::find($id);
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if ($calendar['userid'] != OCP\User::getUser()) {
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$sharedCalendar = OCP\Share::getItemSharedWithBySource('calendar', $id);
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if (!$sharedCalendar || !($sharedCalendar['permissions'] & OCP\PERMISSION_UPDATE)) {
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throw new Exception(
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OC_Calendar_App::$l10n->t(
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'You do not have the permissions to update this calendar.'
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)
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);
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}
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}
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$stmt = OCP\DB::prepare( 'UPDATE `*PREFIX*clndr_calendars` SET `active` = ? WHERE `id` = ?' );
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$stmt->execute(array((int)$active, $id));
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return true;
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}
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/**
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* @brief Updates ctag for calendar
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* @param integer $id
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* @return boolean
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*/
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public static function touchCalendar($id) {
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$stmt = OCP\DB::prepare( 'UPDATE `*PREFIX*clndr_calendars` SET `ctag` = `ctag` + 1 WHERE `id` = ?' );
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$stmt->execute(array($id));
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return true;
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}
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/**
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* @brief removes a calendar
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* @param integer $id
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* @return boolean
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*/
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public static function deleteCalendar($id) {
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$calendar = self::find($id);
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if ($calendar['userid'] != OCP\User::getUser() && !OC_Group::inGroup(OCP\User::getUser(), 'admin')) {
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$sharedCalendar = OCP\Share::getItemSharedWithBySource('calendar', $id);
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if (!$sharedCalendar || !($sharedCalendar['permissions'] & OCP\PERMISSION_DELETE)) {
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throw new Exception(
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OC_Calendar_App::$l10n->t(
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'You do not have the permissions to delete this calendar.'
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)
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);
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}
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}
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$stmt = OCP\DB::prepare( 'DELETE FROM `*PREFIX*clndr_calendars` WHERE `id` = ?' );
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$stmt->execute(array($id));
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$stmt = OCP\DB::prepare( 'DELETE FROM `*PREFIX*clndr_objects` WHERE `calendarid` = ?' );
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$stmt->execute(array($id));
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OCP\Share::unshareAll('calendar', $id);
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OCP\Util::emitHook('OC_Calendar', 'deleteCalendar', $id);
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if(OCP\USER::isLoggedIn() and count(self::allCalendars(OCP\USER::getUser())) == 0) {
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self::addDefaultCalendars(OCP\USER::getUser());
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}
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return true;
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}
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/**
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* @brief merges two calendars
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* @param integer $id1
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* @param integer $id2
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* @return boolean
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*/
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public static function mergeCalendar($id1, $id2) {
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$calendar = self::find($id1);
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if ($calendar['userid'] != OCP\User::getUser() && !OC_Group::inGroup(OCP\User::getUser(), 'admin')) {
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$sharedCalendar = OCP\Share::getItemSharedWithBySource('calendar', $id1);
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if (!$sharedCalendar || !($sharedCalendar['permissions'] & OCP\PERMISSION_UPDATE)) {
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throw new Exception(
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OC_Calendar_App::$l10n->t(
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'You do not have the permissions to add to this calendar.'
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)
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);
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}
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}
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$stmt = OCP\DB::prepare('UPDATE `*PREFIX*clndr_objects` SET `calendarid` = ? WHERE `calendarid` = ?');
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$stmt->execute(array($id1, $id2));
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self::touchCalendar($id1);
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self::deleteCalendar($id2);
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}
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/**
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* @brief Creates a URI for Calendar
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* @param string $name name of the calendar
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* @param array $existing existing calendar URIs
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* @return string uri
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*/
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public static function createURI($name,$existing) {
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$strip=array(' ','/','?','&');//these may break sync clients
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$name=str_replace($strip,'',$name);
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$name = strtolower($name);
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$newname = $name;
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$i = 1;
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while(in_array($newname,$existing)) {
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$newname = $name.$i;
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$i = $i + 1;
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}
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return $newname;
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}
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/**
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* @brief gets the userid from a principal path
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* @return string
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*/
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public static function extractUserID($principaluri) {
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list($prefix,$userid) = Sabre_DAV_URLUtil::splitPath($principaluri);
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return $userid;
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}
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/**
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* @brief returns the possible color for calendars
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* @return array
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*/
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public static function getCalendarColorOptions() {
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return array(
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'#ff0000', // "Red"
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'#b3dc6c', // "Green"
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'#ffff00', // "Yellow"
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'#808000', // "Olive"
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'#ffa500', // "Orange"
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'#ff7f50', // "Coral"
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'#ee82ee', // "Violet"
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'#9fc6e7', // "light blue"
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);
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}
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/**
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* @brief generates the Event Source Info for our JS
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* @param array $calendar calendar data
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* @return array
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*/
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public static function getEventSourceInfo($calendar) {
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return array(
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'url' => OCP\Util::linkTo('calendar', 'ajax/events.php').'?calendar_id='.$calendar['id'],
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'backgroundColor' => $calendar['calendarcolor'],
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'borderColor' => '#888',
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'textColor' => self::generateTextColor($calendar['calendarcolor']),
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'cache' => true,
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);
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}
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/*
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* @brief checks if a calendar name is available for a user
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* @param string $calendarname
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* @param string $userid
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* @return boolean
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*/
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public static function isCalendarNameavailable($calendarname, $userid) {
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$calendars = self::allCalendars($userid);
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foreach($calendars as $calendar) {
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if($calendar['displayname'] == $calendarname) {
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return false;
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}
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}
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return true;
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}
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/*
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* @brief generates the text color for the calendar
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* @param string $calendarcolor rgb calendar color code in hex format (with or without the leading #)
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* (this function doesn't pay attention on the alpha value of rgba color codes)
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* @return boolean
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*/
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public static function generateTextColor($calendarcolor) {
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if(substr_count($calendarcolor, '#') == 1) {
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$calendarcolor = substr($calendarcolor,1);
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}
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$red = hexdec(substr($calendarcolor,0,2));
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$green = hexdec(substr($calendarcolor,2,2));
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$blue = hexdec(substr($calendarcolor,4,2));
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//recommendation by W3C
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$computation = ((($red * 299) + ($green * 587) + ($blue * 114)) / 1000);
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return ($computation > 130)?'#000000':'#FAFAFA';
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}
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/**
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* @brief Get the email address of a user
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* @returns the email address of the user
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*
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* This method returns the email address of selected user.
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*/
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public function getUsersEmails($names) {
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$emails = array();
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$query = OC_DB::prepare('SELECT `email` FROM `*PREFIX*users` WHERE LOWER(`uid`) = LOWER(?)');
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$result = $query->execute(array($names));
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$row = $result->fetchRow();
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$emails[] = $row['email'];
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return $row['email'];
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}
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}
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