adrema/app/Dav/AddressBookBackend.php

257 lines
7.7 KiB
PHP

<?php
namespace App\Dav;
use App\Member\Member;
use App\User;
use Sabre\CardDAV\Backend\AbstractBackend;
use Sabre\DAV\PropPatch;
use Sabre\VObject\Component\VCard;
/**
* @template M as array{lastmodified: int, etag: string, uri: string, id: int, size: int}
*/
class AddressBookBackend extends AbstractBackend
{
/**
* Returns the list of addressbooks for a specific user.
*
* Every addressbook should have the following properties:
* id - an arbitrary unique id
* uri - the 'basename' part of the url
* principaluri - Same as the passed parameter
*
* Any additional clark-notation property may be passed besides this. Some
* common ones are :
* {DAV:}displayname
* {urn:ietf:params:xml:ns:carddav}addressbook-description
* {http://calendarserver.org/ns/}getctag
*
* @param string $principalUri
*
* @return array<int, array<string, string>>
*/
public function getAddressBooksForUser($principalUri)
{
if (1 !== preg_match('/^principals\/(.*)$/', $principalUri, $matches)) {
return [];
}
$user = User::where('email', $matches[1])->firstOrFail();
return [
[
'id' => 'contacts',
'principaluri' => $principalUri,
'uri' => 'contacts',
'{DAV:}displayname' => 'Kontakte',
'{urn:ietf:params:xml:ns:carddav}addressbook-description' => 'Alle Adressen',
],
];
}
/**
* Updates properties for an address book.
*
* The list of mutations is stored in a Sabre\DAV\PropPatch object.
* To do the actual updates, you must tell this object which properties
* you're going to process with the handle() method.
*
* Calling the handle method is like telling the PropPatch object "I
* promise I can handle updating this property".
*
* Read the PropPatch documentation for more info and examples.
*
* @param string $addressBookId
*
* @return void
*/
public function updateAddressBook($addressBookId, PropPatch $propPatch)
{
}
/**
* Creates a new address book.
*
* This method should return the id of the new address book. The id can be
* in any format, including ints, strings, arrays or objects.
*
* @param string $principalUri
* @param string $url just the 'basename' of the url
* @param array<string, string> $properties
*
* @return mixed
*/
public function createAddressBook($principalUri, $url, array $properties)
{
}
/**
* Deletes an entire addressbook and all its contents.
*
* @param mixed $addressBookId
*
* @return void
*/
public function deleteAddressBook($addressBookId)
{
}
/**
* 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 mixed $addressbookId
*
* @return array<int, M>
*/
public function getCards($addressbookId): array
{
return Member::get()->map(fn ($member) => $this->cardMeta($member))->toArray();
}
/**
* Returns a specfic card.
*
* The same set of properties must be returned as with getCards. The only
* exception is that 'carddata' is absolutely required.
*
* If the card does not exist, you must return false.
*
* @param mixed $addressBookId
* @param string $cardUri
*
* @return M
*/
public function getCard($addressBookId, $cardUri)
{
$member = Member::where('slug', $cardUri)->firstOrFail();
return [
...$this->cardMeta($member),
'carddata' => $member->toVcard()->serialize(),
];
}
/**
* Returns a list of cards.
*
* This method should work identical to getCard, but instead return all the
* cards in the list as an array.
*
* If the backend supports this, it may allow for some speed-ups.
*
* @param mixed $addressBookId
*
* @return array
*/
public function getMultipleCards($addressBookId, array $uris)
{
return Member::whereIn('slug', $uris)->get()->map(fn ($member) => [
...$this->cardMeta($member),
'carddata' => $member->toVcard()->serialize(),
])->toArray();
}
/**
* 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 mixed $addressBookId
* @param string $cardUri
* @param string $cardData
*
* @return string|null
*/
public function createCard($addressBookId, $cardUri, $cardData)
{
return null;
}
/**
* 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 mixed $addressBookId
* @param string $cardUri
* @param string $cardData
*
* @return string|null
*/
public function updateCard($addressBookId, $cardUri, $cardData)
{
return null;
}
/**
* Deletes a card.
*
* @param mixed $addressBookId
* @param string $cardUri
*
* @return bool
*/
public function deleteCard($addressBookId, $cardUri)
{
return false;
}
/**
* @return M
*/
private function cardMeta(Member $member): array
{
return [
'lastmodified' => $member->updated_at->timestamp,
'etag' => '"'.$member->etag.'"',
'uri' => $member->slug,
'id' => $member->id,
'size' => strlen($member->toVcard()->serialize()),
];
}
}