forked from friendica/friendica-addons
337 lines
11 KiB
PHP
337 lines
11 KiB
PHP
<?php
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class Sabre_CardDAV_Backend_FriendicaCommunity extends Sabre_CardDAV_Backend_Abstract
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{
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/**
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* @var null|Sabre_CardDAV_Backend_FriendicaCommunity
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*/
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private static $instance = null;
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/**
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* @static
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* @return Sabre_CardDAV_Backend_FriendicaCommunity
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*/
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public static function getInstance() {
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if (self::$instance == null) {
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self::$instance = new Sabre_CardDAV_Backend_FriendicaCommunity();
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}
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return self::$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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* 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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$uid = dav_compat_principal2uid($principalUri);
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$addressBooks = array();
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$books = q("SELECT ctag FROM %s%saddressbooks_community WHERE uid = %d", CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($uid));
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if (count($books) == 0) {
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q("INSERT INTO %s%saddressbooks_community (uid, ctag) VALUES (%d, 1)", CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($uid));
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$ctag = 1;
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} else {
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$ctag = $books[0]["ctag"];
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}
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$addressBooks[] = array(
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'id' => CARDDAV_NAMESPACE_COMMUNITYCONTACTS . "-" . $uid,
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'uri' => "friendica",
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'principaluri' => $principalUri,
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'{DAV:}displayname' => t("Friendica-Contacts"),
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'{' . Sabre_CardDAV_Plugin::NS_CARDDAV . '}addressbook-description' => t("Your Friendica-Contacts"),
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'{http://calendarserver.org/ns/}getctag' => $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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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 string $addressBookId
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* @param array $mutations
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* @throws Sabre_DAV_Exception_Forbidden
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* @see Sabre_DAV_IProperties::updateProperties
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* @return bool|array
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*/
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public function updateAddressBook($addressBookId, array $mutations)
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{
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throw new Sabre_DAV_Exception_Forbidden();
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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 $properties
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* @throws Sabre_DAV_Exception_Forbidden
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* @return void
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*/
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public function createAddressBook($principalUri, $url, array $properties)
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{
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throw new Sabre_DAV_Exception_Forbidden();
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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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throw new Sabre_DAV_Exception_Forbidden();
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}
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/**
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* @param array $contact
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* @return array
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*/
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private function dav_contactarr2vcardsource($contact)
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{
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$name = explode(" ", $contact["name"]);
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$first_name = $last_name = "";
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$middle_name = array();
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$num = count($name);
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for ($i = 0; $i < $num && $first_name == ""; $i++) if ($name[$i] != "") {
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$first_name = $name[$i];
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unset($name[$i]);
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}
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for ($i = $num - 1; $i >= 0 && $last_name == ""; $i--) if (isset($name[$i]) && $name[$i] != "") {
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$last_name = $name[$i];
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unset($name[$i]);
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}
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foreach ($name as $n) if ($n != "") $middle_name[] = $n;
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$vcarddata = new vcard_source_data($first_name, implode(" ", $middle_name), $last_name);
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$vcarddata->homepages[] = new vcard_source_data_homepage("pref", $contact["url"]);
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$vcarddata->last_update = ($contact["last-update"] > 0 ? $contact["last-update"] : $contact["created"]);
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$photo = q("SELECT * FROM photo WHERE `contact-id` = %d ORDER BY scale DESC", $contact["id"]); //prefer size 80x80
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if ($photo && count($photo) > 0) {
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$photodata = new vcard_source_data_photo();
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$photodata->width = $photo[0]["width"];
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$photodata->height = $photo[0]["height"];
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$photodata->type = "JPEG";
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$photodata->binarydata = $photo[0]["data"];
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$vcarddata->photo = $photodata;
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}
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switch ($contact["network"]) {
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case "face":
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$vcarddata->socialnetworks[] = new vcard_source_data_socialnetwork("facebook", $contact["notify"], "http://www.facebook.com/" . $contact["notify"]);
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break;
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case "dfrn":
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$vcarddata->socialnetworks[] = new vcard_source_data_socialnetwork("dfrn", $contact["nick"], $contact["url"]);
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break;
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case "twitter":
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$vcarddata->socialnetworks[] = new vcard_source_data_socialnetwork("twitter", $contact["nick"], "http://twitter.com/" . $contact["nick"]); // @TODO Stimmt das?
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break;
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}
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$vcard = vcard_source_compile($vcarddata);
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return array(
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"id" => $contact["id"],
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"carddata" => $vcard,
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"uri" => $contact["id"] . ".vcf",
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"lastmodified" => wdcal_mySql2PhpTime($vcarddata->last_update),
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"etag" => md5($vcard),
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"size" => strlen($vcard),
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);
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}
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/**
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* @param int $uid
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* @param array|int[] $exclude_ids
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* @return array
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*/
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private function dav_getCommunityContactsVCards($uid = 0, $exclude_ids = array())
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{
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$notin = (count($exclude_ids) > 0 ? " AND id NOT IN (" . implode(", ", $exclude_ids) . ") " : "");
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$uid = IntVal($uid);
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$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", $uid);
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$retdata = array();
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foreach ($contacts as $contact) {
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$x = $this->dav_contactarr2vcardsource($contact);
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$x["contact"] = $contact["id"];
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$retdata[] = $x;
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}
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return $retdata;
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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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$add = explode("-", $addressbookId);
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$indb = q('SELECT id, carddata, uri, lastmodified, etag, size, contact, manually_deleted FROM %s%scards WHERE namespace = %d AND namespace_id = %d',
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CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($add[0]), IntVal($add[1])
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);
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$found_contacts = array();
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$contacts = array();
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foreach ($indb as $x) {
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if ($x["manually_deleted"] == 0) $contacts[] = $x;
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$found_contacts[] = IntVal($x["contact"]);
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}
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$new_found = $this->dav_getCommunityContactsVCards($add[1], $found_contacts);
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foreach ($new_found as $new) {
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q("INSERT INTO %s%scards (namespace, namespace_id, contact, carddata, uri, lastmodified, manually_edited, manually_deleted, etag, size)
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VALUES (%d, %d, %d, '%s', '%s', %d, 0, 0, '%s', %d)", CALDAV_SQL_DB, CALDAV_SQL_PREFIX,
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IntVal($add[0]), IntVal($add[1]), IntVal($new["contact"]), dbesc($new["carddata"]), dbesc($new["uri"]), time(), md5($new["carddata"]), strlen($new["carddata"])
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);
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}
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return array_merge($contacts, $new_found);
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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 = explode("-", $addressBookId);
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$x = q("SELECT id, carddata, uri, lastmodified, etag, size FROM %s%scards WHERE namespace = %d AND namespace_id = %d AND uri = '%s'",
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CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($x[0]), IntVal($x[1]), 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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throw new Sabre_DAV_Exception_Forbidden();
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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, $cardData)
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{
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$x = explode("-", $addressBookId);
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$etag = md5($cardData);
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q("UPDATE %s%scards SET carddata = '%s', lastmodified = %d, etag = '%s', size = %d, manually_edited = 1 WHERE uri = '%s' AND namespace = %d AND namespace_id =%d",
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CALDAV_SQL_DB, CALDAV_SQL_PREFIX, dbesc($cardData), time(), $etag, strlen($cardData), dbesc($cardUri), IntVal($x[10]), IntVal($x[1])
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);
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q('UPDATE %s%saddressbooks_community SET ctag = ctag + 1 WHERE uid = %d', CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($x[1]));
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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, $cardUri)
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{
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$x = explode("-", $addressBookId);
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q("UPDATE %s%scards SET manually_deleted = 1 WHERE namespace = %d AND namespace_id = %d AND uri = '%s'", CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($x[0]), IntVal($x[1]), dbesc($cardUri));
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q('UPDATE %s%saddressbooks_community SET ctag = ctag + 1 WHERE uid = %d', CALDAV_SQL_DB, CALDAV_SQL_PREFIX, IntVal($x[1]));
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return true;
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}
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}
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