<?php
class Sabre_CardDAV_Backend_FriendicaCommunity extends Sabre_CardDAV_Backend_Abstract
{
/**
* Sets up the object
*/
public function __construct()
{
}
/**
* 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();
$books = q("SELECT ctag FROM %s%saddressbooks_community WHERE uid = %d", CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($uid));
if (count($books) == 0) {
q("INSERT INTO %s%saddressbooks_community (uid, ctag) VALUES (%d, 1)", CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($uid));
$ctag = 1;
} else {
$ctag = $books[0]["ctag"];
}
$addressBooks[] = array(
'id' => CARDDAV_NAMESPACE_COMMUNITYCONTACTS . "-" . $uid,
'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;
}
/**
* Updates an addressbook's properties
*
* See Sabre_DAV_IProperties for a description of the mutations array, as
* well as the return value.
*
* @param string $addressBookId
* @param array $mutations
* @throws Sabre_DAV_Exception_Forbidden
* @see Sabre_DAV_IProperties::updateProperties
* @return bool|array
*/
public function updateAddressBook($addressBookId, array $mutations)
{
throw new Sabre_DAV_Exception_Forbidden();
}
/**
* Creates a new address book
*
* @param string $principalUri
* @param string $url Just the 'basename' of the url.
* @param array $properties
* @throws Sabre_DAV_Exception_Forbidden
* @return void
*/
public function createAddressBook($principalUri, $url, array $properties)
{
throw new Sabre_DAV_Exception_Forbidden();
}
/**
* Deletes an entire addressbook and all its contents
*
* @param int $addressBookId
* @throws Sabre_DAV_Exception_Forbidden
* @return void
*/
public function deleteAddressBook($addressBookId)
{
throw new Sabre_DAV_Exception_Forbidden();
}
/**
* @param array $contact
* @return array
*/
private function dav_contactarr2vcardsource($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),
);
}
/**
* @param int $uid
* @param array|int[] $exclude_ids
* @return array
*/
private function dav_getCommunityContactsVCards($uid = 0, $exclude_ids = array())
{
$notin = (count($exclude_ids) > 0 ? " AND id NOT IN (" . implode(", ", $exclude_ids) . ") " : "");
$uid = IntVal($uid);
$contacts = q("SELECT * FROM `contact` WHERE `uid` = %d AND `blocked` = 0 AND `pending` = 0 AND `hidden` = 0 AND `archive` = 0 $notin ORDER BY `name` ASC", $uid);
$retdata = array();
foreach ($contacts as $contact) {
$x = $this->dav_contactarr2vcardsource($contact);
$x["contact"] = $contact["id"];
$retdata[] = $x;
}
return $retdata;
}
/**
* Returns all cards for a specific addressbook id.
*
* This method should return the following properties for each card:
* * carddata - raw vcard data
* * uri - Some unique url
* * lastmodified - A unix timestamp
*
* It's recommended to also return the following properties:
* * etag - A unique etag. This must change every time the card changes.
* * size - The size of the card in bytes.
*
* If these last two properties are provided, less time will be spent
* calculating them. If they are specified, you can also ommit carddata.
* This may speed up certain requests, especially with large cards.
*
* @param string $addressbookId
* @return array
*/
public function getCards($addressbookId)
{
$add = explode("-", $addressbookId);
$indb = q('SELECT id, carddata, uri, lastmodified, etag, size, contact, manually_deleted FROM %s%scards WHERE namespace = %d AND namespace_id = %d',
CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($add[0]), IntVal($add[1])
);
$found_contacts = array();
$contacts = array();
foreach ($indb as $x) {
if ($x["manually_deleted"] == 0) $contacts[] = $x;
$found_contacts[] = IntVal($x["contact"]);
}
$new_found = $this->dav_getCommunityContactsVCards($add[1], $found_contacts);
foreach ($new_found as $new) {
q("INSERT INTO %s%scards (namespace, namespace_id, contact, carddata, uri, lastmodified, manually_edited, manually_deleted, etag, size)
VALUES (%d, %d, %d, '%s', '%s', %d, 0, 0, '%s', %d)", CALDAV_SQL_DB, CALDAV_SQL_PREFIX,
IntVal($add[0]), IntVal($add[1]), IntVal($new["contact"]), dbesc($new["carddata"]), dbesc($new["uri"]), time(), md5($new["carddata"]), strlen($new["carddata"])
);
}
return array_merge($contacts, $new_found);
}
/**
* Returns a specfic card.
*
* The same set of properties must be returned as with getCards. The only
* exception is that 'carddata' is absolutely required.
*
* @param mixed $addressBookId
* @param string $cardUri
* @throws Sabre_DAV_Exception_NotFound
* @return array
*/
public function getCard($addressBookId, $cardUri)
{
$x = explode("-", $addressBookId);
$x = q("SELECT id, carddata, uri, lastmodified, etag, size FROM %s%scards WHERE namespace = %d AND namespace_id = %d AND uri = '%s'",
CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($x[0]), IntVal($x[1]), dbesc($cardUri));
if (count($x) == 0) throw new Sabre_DAV_Exception_NotFound();
return $x[0];
}
/**
* Creates a new 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 is for the
* newly created resource, and must be enclosed with double quotes (that
* is, the string itself must contain the double 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 $cardData
* @throws Sabre_DAV_Exception_Forbidden
* @return string
*/
public function createCard($addressBookId, $cardUri, $cardData)
{
throw new Sabre_DAV_Exception_Forbidden();
}
/**
* 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;
}
}