friendica-addons/dav/dav_carddav_backend_virtual_friendica.inc.php

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<?php
class Sabre_CardDAV_Backend_Friendica extends Sabre_CardDAV_Backend_Virtual
{
/**
* @var null|Sabre_CardDAV_Backend_Friendica
*/
private static $instance = null;
/**
* @static
* @return Sabre_CardDAV_Backend_Friendica
*/
public static function getInstance() {
if (self::$instance == null) {
self::$instance = new Sabre_CardDAV_Backend_Friendica();
}
return self::$instance;
}
/**
* @return int
*/
public function getNamespace()
{
return CARDDAV_NAMESPACE_PRIVATE;
}
/**
* @static
* @return string
*/
public static function getBackendTypeName() {
return t("Friendica-Contacts");
}
/**
* Returns the list of addressbooks for a specific user.
*
* @param string $principalUri
* @return array
*/
public function getAddressBooksForUser($principalUri)
{
$uid = dav_compat_principal2uid($principalUri);
$addressBooks = array();
$books = q("SELECT id, ctag FROM %s%saddressbooks WHERE `namespace` = %d AND `namespace_id` = %d AND `uri` = '%s'",
CALDAV_SQL_DB, CALDAV_SQL_PREFIX, CARDDAV_NAMESPACE_PRIVATE, IntVal($uid), dbesc(CARDDAV_FRIENDICA_CONTACT));
$ctag = $books[0]["ctag"];
$addressBooks[] = array(
'id' => $books[0]["id"],
'uri' => "friendica",
'principaluri' => $principalUri,
'{DAV:}displayname' => t("Friendica-Contacts"),
'{' . Sabre_CardDAV_Plugin::NS_CARDDAV . '}addressbook-description' => t("Your Friendica-Contacts"),
'{http://calendarserver.org/ns/}getctag' => $ctag,
'{' . Sabre_CardDAV_Plugin::NS_CARDDAV . '}supported-address-data' =>
new Sabre_CardDAV_Property_SupportedAddressData(),
);
return $addressBooks;
}
/**
* @static
* @param array $contact
* @return array
*/
private static function dav_contactarr2vcardsource($contact)
{
$name = explode(" ", $contact["name"]);
$first_name = $last_name = "";
$middle_name = array();
$num = count($name);
for ($i = 0; $i < $num && $first_name == ""; $i++) if ($name[$i] != "") {
$first_name = $name[$i];
unset($name[$i]);
}
for ($i = $num - 1; $i >= 0 && $last_name == ""; $i--) if (isset($name[$i]) && $name[$i] != "") {
$last_name = $name[$i];
unset($name[$i]);
}
foreach ($name as $n) if ($n != "") $middle_name[] = $n;
$vcarddata = new vcard_source_data($first_name, implode(" ", $middle_name), $last_name);
$vcarddata->homepages[] = new vcard_source_data_homepage("pref", $contact["url"]);
$vcarddata->last_update = ($contact["last-update"] > 0 ? $contact["last-update"] : $contact["created"]);
$photo = q("SELECT * FROM photo WHERE `contact-id` = %d ORDER BY scale DESC", $contact["id"]); //prefer size 80x80
if ($photo && count($photo) > 0) {
$photodata = new vcard_source_data_photo();
$photodata->width = $photo[0]["width"];
$photodata->height = $photo[0]["height"];
$photodata->type = "JPEG";
$photodata->binarydata = $photo[0]["data"];
$vcarddata->photo = $photodata;
}
switch ($contact["network"]) {
case "face":
$vcarddata->socialnetworks[] = new vcard_source_data_socialnetwork("facebook", $contact["notify"], "http://www.facebook.com/" . $contact["notify"]);
break;
case "dfrn":
$vcarddata->socialnetworks[] = new vcard_source_data_socialnetwork("dfrn", $contact["nick"], $contact["url"]);
break;
case "twitter":
$vcarddata->socialnetworks[] = new vcard_source_data_socialnetwork("twitter", $contact["nick"], "http://twitter.com/" . $contact["nick"]); // @TODO Stimmt das?
break;
}
$vcard = vcard_source_compile($vcarddata);
return array(
"id" => $contact["id"],
"carddata" => $vcard,
"uri" => $contact["id"] . ".vcf",
"lastmodified" => wdcal_mySql2PhpTime($vcarddata->last_update),
"etag" => md5($vcard),
"size" => strlen($vcard),
);
}
/**
* @static
* @param int $addressbookId
* @throws Sabre_DAV_Exception_NotFound
*/
static protected function createCache_internal($addressbookId) {
//$notin = (count($exclude_ids) > 0 ? " AND id NOT IN (" . implode(", ", $exclude_ids) . ") " : "");
$addressbook = q("SELECT * FROM %s%saddressbooks WHERE `id` = %d", CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($addressbookId));
if (count($addressbook) != 1 || $addressbook[0]["namespace"] != CARDDAV_NAMESPACE_PRIVATE) throw new Sabre_DAV_Exception_NotFound();
$contacts = q("SELECT * FROM `contact` WHERE `uid` = %d AND `blocked` = 0 AND `pending` = 0 AND `hidden` = 0 AND `archive` = 0 ORDER BY `name` ASC", $addressbook[0]["namespace_id"]);
$retdata = array();
foreach ($contacts as $contact) {
$x = static::dav_contactarr2vcardsource($contact);
q("INSERT INTO %s%saddressbookobjects (`addressbook_id`, `contact`, `carddata`, `uri`, `lastmodified`, `etag`, `size`) VALUES (%d, %d, '%s', '%s', NOW(), '%s', %d)",
CALDAV_SQL_DB, CALDAV_SQL_PREFIX, $addressbookId, $contact["id"], dbesc($x["carddata"]), dbesc($x["uri"]), dbesc($x["etag"]), $x["size"]
);
}
}
/**
* Updates a card.
*
* The addressbook id will be passed as the first argument. This is the
* same id as it is returned from the getAddressbooksForUser method.
*
* The cardUri is a base uri, and doesn't include the full path. The
* cardData argument is the vcard body, and is passed as a string.
*
* It is possible to return an ETag from this method. This ETag should
* match that of the updated resource, and must be enclosed with double
* quotes (that is: the string itself must contain the actual quotes).
*
* You should only return the ETag if you store the carddata as-is. If a
* subsequent GET request on the same card does not have the same body,
* byte-by-byte and you did return an ETag here, clients tend to get
* confused.
*
* If you don't return an ETag, you can just return null.
*
* @param string $addressBookId
* @param string $cardUri
* @param string $cardData
* @throws Sabre_DAV_Exception_Forbidden
* @return string|null
*/
public function updateCard($addressBookId, $cardUri, $cardData)
{
$x = explode("-", $addressBookId);
$etag = md5($cardData);
q("UPDATE %s%scards SET carddata = '%s', lastmodified = %d, etag = '%s', size = %d, manually_edited = 1 WHERE uri = '%s' AND namespace = %d AND namespace_id =%d",
CALDAV_SQL_DB, CALDAV_SQL_PREFIX, dbesc($cardData), time(), $etag, strlen($cardData), dbesc($cardUri), IntVal($x[10]), IntVal($x[1])
);
q('UPDATE %s%saddressbooks_community SET ctag = ctag + 1 WHERE uid = %d', CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($x[1]));
return '"' . $etag . '"';
}
/**
* Deletes a card
*
* @param string $addressBookId
* @param string $cardUri
* @throws Sabre_DAV_Exception_Forbidden
* @return bool
*/
public function deleteCard($addressBookId, $cardUri)
{
$x = explode("-", $addressBookId);
q("UPDATE %s%scards SET manually_deleted = 1 WHERE namespace = %d AND namespace_id = %d AND uri = '%s'", CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($x[0]), IntVal($x[1]), dbesc($cardUri));
q('UPDATE %s%saddressbooks_community SET ctag = ctag + 1 WHERE uid = %d', CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($x[1]));
return true;
}
}