forked from friendica/friendica-addons
276 lines
8.8 KiB
PHP
276 lines
8.8 KiB
PHP
<?php
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class Sabre_CardDAV_Backend_Std extends Sabre_CardDAV_Backend_Common
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{
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/**
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* @var null|Sabre_CardDAV_Backend_Std
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*/
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private static $instance = null;
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/**
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* @static
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* @return Sabre_CardDAV_Backend_Std
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*/
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public static function getInstance() {
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if (self::$instance == null) {
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self::$instance = new Sabre_CardDAV_Backend_Std();
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}
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return self::$instance;
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}
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/**
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* Sets up the object
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*/
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public function __construct()
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{
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}
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/**
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* @return int
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*/
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public function getNamespace()
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{
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return CARDDAV_NAMESPACE_PRIVATE;
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}
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/**
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* @static
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* @return string
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*/
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public static function getBackendTypeName()
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{
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return t("Private Addressbooks");
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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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{
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$n = dav_compat_principal2namespace($principalUri);
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if ($n["namespace"] != $this->getNamespace()) return array();
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$addressBooks = array();
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$books = q("SELECT * FROM %s%saddressbooks WHERE `namespace` = %d AND `namespace_id` = %d", CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($n["namespace"]), IntVal($n["namespace_id"]));
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foreach ($books as $row) {
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if (in_array($row["uri"], $GLOBALS["CARDDAV_PRIVATE_SYSTEM_ADDRESSBOOKS"])) continue;
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$addressBooks[] = array(
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'id' => $row['id'],
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'uri' => $row['uri'],
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'principaluri' => $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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* 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 $properties
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* @throws Sabre_DAV_Exception_BadRequest
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* @return void
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*/
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public function createAddressBook($principalUri, $url, array $properties)
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{
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$uid = dav_compat_principal2uid($principalUri);
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$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: ' . $property);
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}
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}
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q("INSERT INTO %s%saddressbooks (`uri`, `displayname`, `description`, `namespace`, `namespace_id`, `ctag`) VALUES ('%s', '%s', '%s', %d, %d, 1)",
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CALDAV_SQL_DB, CALDAV_SQL_PREFIX, dbesc($values["uri"]), dbesc($values["displayname"]), dbesc($values["description"]), CARDDAV_NAMESPACE_PRIVATE, IntVal($uid)
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);
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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 $addressBookId
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* @throws Sabre_DAV_Exception_Forbidden
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* @return void
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*/
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public function deleteAddressBook($addressBookId)
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{
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q("DELETE FROM %s%saddressbookobjects WHERE `id` = %d", CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($addressBookId));
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q("DELETE FROM %s%saddressbooks WHERE `addressbook_id` = %d", CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($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 string $addressbookId
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* @return array
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*/
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public function getCards($addressbookId)
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{
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$r = q('SELECT `id`, `carddata`, `uri`, `lastmodified`, `etag`, `size`, `contact` FROM %s%saddressbookobjects WHERE `addressbook_id` = %d AND `manually_deleted` = 0',
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CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($addressbookId)
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);
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if ($r) return $r;
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return array();
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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 $cardUri
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* @throws Sabre_DAV_Exception_NotFound
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* @return array
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*/
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public function getCard($addressBookId, $cardUri)
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{
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$x = q("SELECT `id`, `carddata`, `uri`, `lastmodified`, `etag`, `size` FROM %s%saddressbookobjects WHERE `addressbook_id` = %d AND `uri` = '%s'",
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CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($addressBookId), dbesc($cardUri));
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if (count($x) == 0) throw new Sabre_DAV_Exception_NotFound();
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return $x[0];
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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 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 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 string $addressBookId
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* @param string $cardUri
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* @param string $cardData
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* @throws Sabre_DAV_Exception_Forbidden
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* @return string
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*/
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public function createCard($addressBookId, $cardUri, $cardData)
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{
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$etag = md5($cardData);
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q("INSERT INTO %s%saddressbookobjects (`carddata`, `uri`, `lastmodified`, `addressbook_id`, `etag`, `size`) VALUES ('%s', '%s', NOW(), %d, '%s', %d)",
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CALDAV_SQL_DB, CALDAV_SQL_PREFIX, dbesc($cardData), dbesc($cardUri), IntVal($addressBookId), dbesc($etag), strlen($cardData)
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);
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q('UPDATE %s%saddressbooks SET `ctag` = `ctag` + 1 WHERE `id` = %d', CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($addressBookId));
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return '"' . $etag . '"';
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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 string $addressBookId
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* @param string $cardUri
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* @param string $cardData
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* @throws Sabre_DAV_Exception_Forbidden
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* @return string|null
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*/
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public function updateCard($addressBookId, $cardUri, $cardData)
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{
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$etag = md5($cardData);
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q("UPDATE %s%saddressbookobjects SET `carddata` = '%s', `lastmodified` = NOW(), `etag` = '%s', `size` = %d, `manually_edited` = 1 WHERE `uri` = '%s' AND `addressbook_id` = %d",
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CALDAV_SQL_DB, CALDAV_SQL_PREFIX, dbesc($cardData), dbesc($etag), strlen($cardData), dbesc($cardUri), IntVal($addressBookId)
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);
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q('UPDATE %s%saddressbooks SET `ctag` = `ctag` + 1 WHERE `id` = %d', CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($addressBookId));
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return '"' . $etag . '"';
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}
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/**
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* Deletes a card
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*
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* @param string $addressBookId
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* @param string $cardUri
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* @throws Sabre_DAV_Exception_Forbidden
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* @return bool
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*/
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public function deleteCard($addressBookId, $cardUri)
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{
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q("DELETE FROM %s%saddressbookobjects WHERE `addressbook_id` = %d AND `uri` = '%s'", CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($addressBookId), dbesc($cardUri));
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q('UPDATE %s%saddressbooks SET `ctag` = `ctag` + 1 WHERE `id` = %d', CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($addressBookId));
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return true;
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}
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}
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