331 lines
11 KiB
PHP
331 lines
11 KiB
PHP
<?php
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/**
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* PDO CardDAV backend
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*
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* This CardDAV backend uses PDO to store addressbooks
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*
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* @package Sabre
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* @subpackage CardDAV
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* @copyright Copyright (C) 2007-2012 Rooftop Solutions. All rights reserved.
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* @author Evert Pot (http://www.rooftopsolutions.nl/)
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* @license http://code.google.com/p/sabredav/wiki/License Modified BSD License
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*/
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class Sabre_CardDAV_Backend_PDO extends Sabre_CardDAV_Backend_Abstract {
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/**
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* PDO connection
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*
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* @var PDO
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*/
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protected $pdo;
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/**
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* The PDO table name used to store addressbooks
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*/
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protected $addressBooksTableName;
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/**
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* The PDO table name used to store cards
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*/
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protected $cardsTableName;
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/**
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* Sets up the object
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*
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* @param PDO $pdo
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* @param string $addressBooksTableName
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* @param string $cardsTableName
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*/
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public function __construct(PDO $pdo, $addressBooksTableName = 'addressbooks', $cardsTableName = 'cards') {
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$this->pdo = $pdo;
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$this->addressBooksTableName = $addressBooksTableName;
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$this->cardsTableName = $cardsTableName;
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}
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/**
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* Returns the list of addressbooks for a specific user.
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*
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* @param string $principalUri
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* @return array
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*/
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public function getAddressBooksForUser($principalUri) {
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$stmt = $this->pdo->prepare('SELECT id, uri, displayname, principaluri, description, ctag FROM '.$this->addressBooksTableName.' WHERE principaluri = ?');
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$stmt->execute(array($principalUri));
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$addressBooks = array();
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foreach($stmt->fetchAll() as $row) {
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$addressBooks[] = array(
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'id' => $row['id'],
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'uri' => $row['uri'],
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'principaluri' => $row['principaluri'],
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'{DAV:}displayname' => $row['displayname'],
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'{' . Sabre_CardDAV_Plugin::NS_CARDDAV . '}addressbook-description' => $row['description'],
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'{http://calendarserver.org/ns/}getctag' => $row['ctag'],
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'{' . Sabre_CardDAV_Plugin::NS_CARDDAV . '}supported-address-data' =>
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new Sabre_CardDAV_Property_SupportedAddressData(),
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);
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}
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return $addressBooks;
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}
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/**
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* Updates an addressbook's properties
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*
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* See Sabre_DAV_IProperties for a description of the mutations array, as
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* well as the return value.
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*
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* @param mixed $addressBookId
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* @param array $mutations
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* @see Sabre_DAV_IProperties::updateProperties
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* @return bool|array
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*/
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public function updateAddressBook($addressBookId, array $mutations) {
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$updates = array();
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foreach($mutations as $property=>$newValue) {
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switch($property) {
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case '{DAV:}displayname' :
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$updates['displayname'] = $newValue;
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break;
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case '{' . Sabre_CardDAV_Plugin::NS_CARDDAV . '}addressbook-description' :
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$updates['description'] = $newValue;
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break;
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default :
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// If any unsupported values were being updated, we must
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// let the entire request fail.
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return false;
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}
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}
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// No values are being updated?
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if (!$updates) {
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return false;
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}
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$query = 'UPDATE ' . $this->addressBooksTableName . ' SET ctag = ctag + 1 ';
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foreach($updates as $key=>$value) {
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$query.=', `' . $key . '` = :' . $key . ' ';
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}
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$query.=' WHERE id = :addressbookid';
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$stmt = $this->pdo->prepare($query);
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$updates['addressbookid'] = $addressBookId;
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$stmt->execute($updates);
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return true;
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}
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/**
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* Creates a new address book
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*
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* @param string $principalUri
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* @param string $url Just the 'basename' of the url.
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* @param array $properties
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* @return void
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*/
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public function createAddressBook($principalUri, $url, array $properties) {
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$values = array(
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'displayname' => null,
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'description' => null,
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'principaluri' => $principalUri,
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'uri' => $url,
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);
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foreach($properties as $property=>$newValue) {
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switch($property) {
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case '{DAV:}displayname' :
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$values['displayname'] = $newValue;
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break;
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case '{' . Sabre_CardDAV_Plugin::NS_CARDDAV . '}addressbook-description' :
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$values['description'] = $newValue;
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break;
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default :
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throw new Sabre_DAV_Exception_BadRequest('Unknown property: ' . $property);
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}
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}
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$query = 'INSERT INTO ' . $this->addressBooksTableName . ' (uri, displayname, description, principaluri, ctag) VALUES (:uri, :displayname, :description, :principaluri, 1)';
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$stmt = $this->pdo->prepare($query);
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$stmt->execute($values);
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}
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/**
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* Deletes an entire addressbook and all its contents
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*
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* @param int $addressBookId
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* @return void
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*/
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public function deleteAddressBook($addressBookId) {
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$stmt = $this->pdo->prepare('DELETE FROM ' . $this->cardsTableName . ' WHERE addressbookid = ?');
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$stmt->execute(array($addressBookId));
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$stmt = $this->pdo->prepare('DELETE FROM ' . $this->addressBooksTableName . ' WHERE id = ?');
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$stmt->execute(array($addressBookId));
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}
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/**
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* Returns all cards for a specific addressbook id.
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*
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* This method should return the following properties for each card:
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* * carddata - raw vcard data
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* * uri - Some unique url
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* * lastmodified - A unix timestamp
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*
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* It's recommended to also return the following properties:
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* * etag - A unique etag. This must change every time the card changes.
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* * size - The size of the card in bytes.
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*
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* If these last two properties are provided, less time will be spent
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* calculating them. If they are specified, you can also ommit carddata.
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* This may speed up certain requests, especially with large cards.
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*
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* @param mixed $addressbookId
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* @return array
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*/
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public function getCards($addressbookId) {
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$stmt = $this->pdo->prepare('SELECT id, carddata, uri, lastmodified FROM ' . $this->cardsTableName . ' WHERE addressbookid = ?');
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$stmt->execute(array($addressbookId));
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return $stmt->fetchAll(PDO::FETCH_ASSOC);
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}
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/**
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* Returns a specfic card.
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*
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* The same set of properties must be returned as with getCards. The only
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* exception is that 'carddata' is absolutely required.
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*
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* @param mixed $addressBookId
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* @param string $cardUri
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* @return array
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*/
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public function getCard($addressBookId, $cardUri) {
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$stmt = $this->pdo->prepare('SELECT id, carddata, uri, lastmodified FROM ' . $this->cardsTableName . ' WHERE addressbookid = ? AND uri = ? LIMIT 1');
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$stmt->execute(array($addressBookId, $cardUri));
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$result = $stmt->fetchAll(PDO::FETCH_ASSOC);
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return (count($result)>0?$result[0]:false);
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}
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/**
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* Creates a new card.
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*
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* The addressbook id will be passed as the first argument. This is the
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* same id as it is returned from the getCards method.
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*
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* The cardUri is a base uri, and doesn't include the full path. The
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* cardData argument is the vcard body, and is passed as a string.
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*
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* It is possible to return an ETag from this method. This ETag is for the
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* newly created resource, and must be enclosed with double quotes (that
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* is, the string itself must contain the double quotes).
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*
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* You should only return the ETag if you store the carddata as-is. If a
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* subsequent GET request on the same card does not have the same body,
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* byte-by-byte and you did return an ETag here, clients tend to get
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* confused.
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*
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* If you don't return an ETag, you can just return null.
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*
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* @param mixed $addressBookId
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* @param string $cardUri
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* @param string $cardData
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* @return string|null
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*/
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public function createCard($addressBookId, $cardUri, $cardData) {
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$stmt = $this->pdo->prepare('INSERT INTO ' . $this->cardsTableName . ' (carddata, uri, lastmodified, addressbookid) VALUES (?, ?, ?, ?)');
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$result = $stmt->execute(array($cardData, $cardUri, time(), $addressBookId));
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$stmt2 = $this->pdo->prepare('UPDATE ' . $this->addressBooksTableName . ' SET ctag = ctag + 1 WHERE id = ?');
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$stmt2->execute(array($addressBookId));
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return '"' . md5($cardData) . '"';
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}
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/**
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* Updates a card.
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*
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* The addressbook id will be passed as the first argument. This is the
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* same id as it is returned from the getAddressbooksForUser method.
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*
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* The cardUri is a base uri, and doesn't include the full path. The
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* cardData argument is the vcard body, and is passed as a string.
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*
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* It is possible to return an ETag from this method. This ETag should
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* match that of the updated resource, and must be enclosed with double
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* quotes (that is: the string itself must contain the actual quotes).
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*
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* You should only return the ETag if you store the carddata as-is. If a
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* subsequent GET request on the same card does not have the same body,
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* byte-by-byte and you did return an ETag here, clients tend to get
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* confused.
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*
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* If you don't return an ETag, you can just return null.
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*
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* @param mixed $addressBookId
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* @param string $cardUri
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* @param string $cardData
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* @return string|null
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*/
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public function updateCard($addressBookId, $cardUri, $cardData) {
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$stmt = $this->pdo->prepare('UPDATE ' . $this->cardsTableName . ' SET carddata = ?, lastmodified = ? WHERE uri = ? AND addressbookid =?');
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$stmt->execute(array($cardData, time(), $cardUri, $addressBookId));
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$stmt2 = $this->pdo->prepare('UPDATE ' . $this->addressBooksTableName . ' SET ctag = ctag + 1 WHERE id = ?');
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$stmt2->execute(array($addressBookId));
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return '"' . md5($cardData) . '"';
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}
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/**
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* Deletes a card
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*
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* @param mixed $addressBookId
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* @param string $cardUri
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* @return bool
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*/
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public function deleteCard($addressBookId, $cardUri) {
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$stmt = $this->pdo->prepare('DELETE FROM ' . $this->cardsTableName . ' WHERE addressbookid = ? AND uri = ?');
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$stmt->execute(array($addressBookId, $cardUri));
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$stmt2 = $this->pdo->prepare('UPDATE ' . $this->addressBooksTableName . ' SET ctag = ctag + 1 WHERE id = ?');
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$stmt2->execute(array($addressBookId));
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return $stmt->rowCount()===1;
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}
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}
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