nextcloud/apps/contacts/lib/vcard.php

366 lines
9.3 KiB
PHP

<?php
/**
* ownCloud - Addressbook
*
* @author Jakob Sack
* @copyright 2011 Jakob Sack mail@jakobsack.de
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
*
* You should have received a copy of the GNU Affero General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
/*
*
* The following SQL statement is just a help for developers and will not be
* executed!
*
* CREATE TABLE contacts_cards (
* id INT(11) UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
* addressbookid INT(11) UNSIGNED NOT NULL,
* fullname VARCHAR(255),
* carddata TEXT,
* uri VARCHAR(100),
* lastmodified INT(11) UNSIGNED
* );
*/
/**
* This class manages our vCards
*/
class OC_Contacts_VCard{
/**
* @brief Returns all cards of an address book
* @param integer $id
* @return array
*
* The cards are associative arrays. You'll find the original vCard in
* ['carddata']
*/
public static function all($id){
$stmt = OC_DB::prepare( 'SELECT * FROM *PREFIX*contacts_cards WHERE addressbookid = ?' );
$result = $stmt->execute(array($id));
$addressbooks = array();
while( $row = $result->fetchRow()){
$addressbooks[] = $row;
}
return $addressbooks;
}
/**
* @brief Returns a card
* @param integer $id
* @return associative array
*/
public static function find($id){
$stmt = OC_DB::prepare( 'SELECT * FROM *PREFIX*contacts_cards WHERE id = ?' );
$result = $stmt->execute(array($id));
return $result->fetchRow();
}
/**
* @brief finds a card by its DAV Data
* @param integer $aid Addressbook id
* @param string $uri the uri ('filename')
* @return associative array
*/
public static function findWhereDAVDataIs($aid,$uri){
$stmt = OC_DB::prepare( 'SELECT * FROM *PREFIX*contacts_cards WHERE addressbookid = ? AND uri = ?' );
$result = $stmt->execute(array($aid,$uri));
return $result->fetchRow();
}
/**
* @brief Adds a card
* @param integer $id Addressbook id
* @param string $data vCard file
* @return insertid
*/
public static function add($id,$data){
$fn = null;
$uri = null;
$card = self::parse($data);
if(!is_null($card)){
foreach($card->children as $property){
if($property->name == 'FN'){
$fn = $property->value;
}
elseif(is_null($uri) && $property->name == 'UID' ){
$uri = $property->value.'.vcf';
}
}
if(is_null($uri)){
$uid = self::createUID();
$uri = $uid.'.vcf';
$card->add(new Sabre_VObject_Property('UID',$uid));
$data = $card->serialize();
};
}
else{
// that's hard. Creating a UID and not saving it
$uid = self::createUID();
$uri = $uid.'.vcf';
};
$stmt = OC_DB::prepare( 'INSERT INTO *PREFIX*contacts_cards (addressbookid,fullname,carddata,uri,lastmodified) VALUES(?,?,?,?,?)' );
$result = $stmt->execute(array($id,$fn,$data,$uri,time()));
OC_Contacts_Addressbook::touch($id);
return OC_DB::insertid();
}
/**
* @brief Adds a card with the data provided by sabredav
* @param integer $id Addressbook id
* @param string $uri the uri the card will have
* @param string $data vCard file
* @return insertid
*/
public static function addFromDAVData($id,$uri,$data){
$fn = null;
$card = self::parse($data);
if(!is_null($card)){
foreach($card->children as $property){
if($property->name == 'FN'){
$fn = $property->value;
}
}
}
$stmt = OC_DB::prepare( 'INSERT INTO *PREFIX*contacts_cards (addressbookid,fullname,carddata,uri,lastmodified) VALUES(?,?,?,?,?)' );
$result = $stmt->execute(array($id,$fn,$data,$uri,time()));
OC_Contacts_Addressbook::touch($id);
return OC_DB::insertid();
}
/**
* @brief edits a card
* @param integer $id id of card
* @param string $data vCard file
* @return boolean
*/
public static function edit($id, $data){
$oldcard = self::find($id);
$fn = null;
$card = self::parse($data);
if(!is_null($card)){
foreach($card->children as $property){
if($property->name == 'FN'){
$fn = $property->value;
}
}
}
$stmt = OC_DB::prepare( 'UPDATE *PREFIX*contacts_cards SET fullname = ?,carddata = ?, lastmodified = ? WHERE id = ?' );
$result = $stmt->execute(array($fn,$data,time(),$id));
OC_Contacts_Addressbook::touch($oldcard['addressbookid']);
return true;
}
/**
* @brief edits a card with the data provided by sabredav
* @param integer $id Addressbook id
* @param string $uri the uri of the card
* @param string $data vCard file
* @return boolean
*/
public static function editFromDAVData($aid,$uri,$data){
$oldcard = self::findWhereDAVDataIs($aid,$uri);
$fn = null;
$card = self::parse($data);
if(!is_null($card)){
foreach($card->children as $property){
if($property->name == 'FN'){
$fn = $property->value;
}
}
}
$stmt = OC_DB::prepare( 'UPDATE *PREFIX*contacts_cards SET fullname = ?,carddata = ?, lastmodified = ? WHERE id = ?' );
$result = $stmt->execute(array($fn,$data,time(),$oldcard['id']));
OC_Contacts_Addressbook::touch($oldcard['addressbookid']);
return true;
}
/**
* @brief deletes a card
* @param integer $id id of card
* @return boolean
*/
public static function delete($id){
$stmt = OC_DB::prepare( 'DELETE FROM *PREFIX*contacts_cards WHERE id = ?' );
$stmt->execute(array($id));
return true;
}
/**
* @brief Creates a UID
* @return string
*/
public static function createUID(){
return substr(md5(rand().time()),0,10);
}
/**
* @brief deletes a card with the data provided by sabredav
* @param integer $aid Addressbook id
* @param string $uri the uri of the card
* @return boolean
*/
public static function deleteCardFromDAVData($aid,$uri){
$stmt = OC_DB::prepare( 'DELETE FROM *PREFIX*contacts_cards WHERE addressbookid = ? AND uri=?' );
$stmt->execute(array($aid,$uri));
return true;
}
/**
* @brief Escapes semicolons
* @param string $value
* @return string
*/
public static function escapeSemicolons($value){
foreach($value as &$i ){
$i = implode("\\\\;", explode(';', $i));
}
return implode(';',$value);
}
/**
* @brief Creates an array out of a multivalue property
* @param string $value
* @return array
*/
public static function unescapeSemicolons($value){
$array = explode(';',$value);
for($i=0;$i<count($array);$i++){
if(substr($array[$i],-2,2)=="\\\\"){
if(isset($array[$i+1])){
$array[$i] = substr($array[$i],0,count($array[$i])-2).';'.$array[$i+1];
unset($array[$i+1]);
}
else{
$array[$i] = substr($array[$i],0,count($array[$i])-2).';';
}
$i = $i - 1;
}
}
return $array;
}
/**
* @brief Add property to vcard object
* @param object $vcard
* @param object $name of property
* @param object $value of property
* @param object $paramerters of property
*/
public static function addVCardProperty($vcard, $name, $value, $parameters=array()){
if(is_array($value)){
$value = OC_Contacts_VCard::escapeSemicolons($value);
}
$property = new Sabre_VObject_Property( $name, $value );
$parameternames = array_keys($parameters);
foreach($parameternames as $i){
$property->parameters[] = new Sabre_VObject_Parameter($i,$parameters[$i]);
}
$vcard->add($property);
return $property;
}
/**
* @brief Data structure of vCard
* @param object $property
* @return associative array
*
* look at code ...
*/
public static function structureContact($object){
$details = array();
foreach($object->children as $property){
$temp = self::structureProperty($property);
if(array_key_exists($property->name,$details)){
$details[$property->name][] = $temp;
}
else{
$details[$property->name] = array($temp);
}
}
return $details;
}
/**
* @brief Data structure of properties
* @param object $property
* @return associative array
*
* returns an associative array with
* ['name'] name of property
* ['value'] htmlspecialchars escaped value of property
* ['parameters'] associative array name=>value
* ['checksum'] checksum of whole property
*/
public static function structureProperty($property){
$value = $property->value;
$value = htmlspecialchars($value);
if($property->name == 'ADR' || $property->name == 'N'){
$value = self::unescapeSemicolons($value);
}
$temp = array(
'name' => $property->name,
'value' => $value,
'parameters' => array(),
'checksum' => md5($property->serialize()));
foreach($property->parameters as $parameter){
// Faulty entries by kaddressbook
if($parameter->name == 'TYPE' && $parameter->value == 'PREF'){
$parameter->name = 'PREF';
$parameter->value = '1';
}
$temp['parameters'][$parameter->name] = $parameter->value;
}
return $temp;
}
/**
* @brief Parses a vcard file
* @param string vCard
* @return Sabre_VObject or null
*
* Will retun the vobject if sabre DAV is able to parse the file.
*/
public static function parse($data){
try {
$card = Sabre_VObject_Reader::read($data);
return $card;
} catch (Exception $e) {
return null;
}
}
}