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<?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_addressbooks (
* id INT(11) UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
* userid VARCHAR(255) NOT NULL,
* displayname VARCHAR(255),
* uri VARCHAR(100),
* description TEXT,
* ctag INT(11) UNSIGNED NOT NULL DEFAULT '1'
* );
*
* 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 addressbooks.
*/
class OC_Contacts_Addressbook{
/**
* @brief Returns the list of addressbooks for a specific user.
* @param string $uid
* @return array
*/
public static function allAddressbooks($uid){
$stmt = OC_DB::prepare( 'SELECT * FROM *PREFIX*contacts_addressbooks WHERE userid = ?' );
$result = $stmt->execute(array($uid));
$addressbooks = array();
while( $row = $result->fetchRow()){
$addressbooks[] = $row;
}
return $addressbooks;
}
/**
* @brief Returns the list of addressbooks for a principal (DAV term of user)
* @param string $principaluri
* @return array
*/
public static function allAddressbooksWherePrincipalURIIs($principaluri){
$uid = self::extractUserID($principaluri);
return self::allAddressbooks($uid);
}
/**
* @brief Gets the data of one address book
* @param integer $id
* @return associative array
*/
public static function findAddressbook($id){
$stmt = OC_DB::prepare( 'SELECT * FROM *PREFIX*contacts_addressbooks WHERE id = ?' );
$result = $stmt->execute(array($id));
return $result->fetchRow();
}
/**
* @brief Creates a new address book
* @param string $userid
* @param string $name
* @param string $description
* @return insertid
*/
public static function addAddressbook($userid,$name,$description){
$all = self::allAddressbooks($userid);
$uris = array();
foreach($all as $i){
$uris[] = $i['uri'];
}
$uri = self::createURI($name, $uris );
$stmt = OC_DB::prepare( 'INSERT INTO *PREFIX*contacts_addressbooks (userid,displayname,uri,description,ctag) VALUES(?,?,?,?,?)' );
$result = $stmt->execute(array($userid,$name,$uri,$description,1));
return OC_DB::insertid();
}
/**
* @brief Creates a new address book from the data sabredav provides
* @param string $principaluri
* @param string $uri
* @param string $name
* @param string $description
* @return insertid
*/
public static function addAddressbookFromDAVData($principaluri,$uri,$name,$description){
$userid = self::extractUserID($principaluri);
$stmt = OC_DB::prepare( 'INSERT INTO *PREFIX*contacts_addressbooks (userid,displayname,uri,description,ctag) VALUES(?,?,?,?,?)' );
$result = $stmt->execute(array($userid,$name,$uri,$description,1));
return OC_DB::insertid();
}
/**
* @brief Edits an addressbook
* @param integer $id
* @param string $name
* @param string $description
* @return boolean
*/
public static function editAddressbook($id,$name,$description){
// Need these ones for checking uri
$addressbook = self::find($id);
if(is_null($name)){
$name = $addressbook['name'];
}
if(is_null($description)){
$description = $addressbook['description'];
}
$stmt = OC_DB::prepare( 'UPDATE *PREFIX*contacts_addressbooks SET displayname=?,description=?, ctag=ctag+1 WHERE id=?' );
$result = $stmt->execute(array($name,$description,$id));
return true;
}
/**
* @brief Updates ctag for addressbook
* @param integer $id
* @return boolean
*/
public static function touchAddressbook($id){
$stmt = OC_DB::prepare( 'UPDATE *PREFIX*contacts_addressbooks SET ctag = ctag + 1 WHERE id = ?' );
$stmt->execute(array($id));
return true;
}
/**
* @brief removes an address book
* @param integer $id
* @return boolean
*/
public static function deleteAddressbook($id){
$stmt = OC_DB::prepare( 'DELETE FROM *PREFIX*contacts_addressbooks WHERE id = ?' );
$stmt->execute(array($id));
$stmt = OC_DB::prepare( 'DELETE FROM *PREFIX*contacts_cards WHERE addressbookid = ?' );
$stmt->execute(array($id));
return true;
}
/**
* @brief Returns all cards of an address book
* @param integer $id
* @return array
*
* The cards are associative arrays. You'll find the original vCard in
* ['carddata']
*/
public static function allCards($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 $id
* @return associative array
*/
public static function findCard($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 $uri the uri ('filename')
* @return associative array
*/
public static function findCardWhereDAVDataIs($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 $data vCard file
* @return insertid
*/
public static function addCard($id,$data){
$fn = null;
$uri = null;
if(self::isValidVObject($data)){
$card = Sabre_VObject_Reader::read($data);
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,$uri,time()));
self::touchAddressbook($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 $data vCard file
* @return insertid
*/
public static function addCardFromDAVData($id,$uri,$data){
$fn = null;
if(self::isValidVObject($data)){
$card = Sabre_VObject_Reader::read($data);
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,$uri,time()));
self::touchAddressbook($id);
return OC_DB::insertid();
}
/**
* @brief edits a card
* @param integer $id id of card
* @param string $data vCard file
* @return boolean
*/
public static function editCard($id, $data){
$oldcard = self::findCard($id);
$fn = null;
if(self::isValidVObject($data)){
$card = Sabre_VObject_Reader::read($data);
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));
self::touchAddressbook($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 $data vCard file
* @return boolean
*/
public static function editCardFromDAVData($aid,$uri,$data){
$oldcard = self::findCardWhereDAVDataIs($aid,$uri);
$fn = null;
if(self::isValidVObject($data)){
$card = Sabre_VObject_Reader::read($data);
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']));
self::touchAddressbook($oldcard['addressbookid']);
return true;
}
/**
* @brief deletes a card
* @param integer $id id of card
* @return boolean
*/
public static function deleteCard($id){
$stmt = OC_DB::prepare( 'DELETE FROM *PREFIX*contacts_cards WHERE id = ?' );
$stmt->execute(array($id));
return true;
}
/**
* @brief deletes a card with the data provided by sabredav
* @param integer $id 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 Creates a URI for Addressbook
* @param string $name name of the addressbook
* @param array $existing the uri of the card
* @return boolean
*/
public static function createURI($name,$existing){
$name = strtolower($name);
$newname = $name;
$i = 1;
while(in_array($newname,$existing)){
$newname = $name.$i;
$i = $i + 1;
}
return $newname;
}
/**
* @brief Creates a UID
* @return string
*/
public static function createUID(){
return substr(md5(rand().time()),0,10);
}
/**
* @brief gets the userid from a principal path
* @return string
*/
public static function extractUserID($principaluri){
list($prefix,$userid) = Sabre_DAV_URLUtil::splitPath($principaluri);
return $userid;
}
/**
* @brief Escapes semicolons
* @param string $value
* @return string
*/
public static function escapeSemicolons($value){
foreach($value as &$i ){
$i = implode("\\\\;", explode(';', $i));
} unset($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 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 $temp;
}
/**
* @brief Checks if SabreDAV can parse the file
* @param string vCard
* @return boolean
*
* The code is largely copypasted from Sabre_VObject_Reader
*/
public static function isValidVObject($data){
try {
Sabre_VObject_Reader::read($data);
return true;
} catch (Exception $e) {
return false;
}
}
}
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