/usr/share/php/sabre21/Sabre/CardDAV/Backend/PDO.php is in php-sabre-dav-2.1 2.1.10-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 | <?php
namespace Sabre\CardDAV\Backend;
use Sabre\CardDAV;
use Sabre\DAV;
/**
* PDO CardDAV backend
*
* This CardDAV backend uses PDO to store addressbooks
*
* @copyright Copyright (C) fruux GmbH (https://fruux.com/)
* @author Evert Pot (http://evertpot.com/)
* @license http://sabre.io/license/ Modified BSD License
*/
class PDO extends AbstractBackend implements SyncSupport {
/**
* PDO connection
*
* @var PDO
*/
protected $pdo;
/**
* The PDO table name used to store addressbooks
*/
public $addressBooksTableName = 'addressbooks';
/**
* The PDO table name used to store cards
*/
public $cardsTableName = 'cards';
/**
* The table name that will be used for tracking changes in address books.
*
* @var string
*/
public $addressBookChangesTableName = 'addressbookchanges';
/**
* Sets up the object
*
* @param \PDO $pdo
* @param string $addressBooksTableName
* @param string $cardsTableName
* @deprecated We are going to remove all the tableName arguments in a
* future version, and rely on the public properties instead.
* Stop relying on them!
*/
function __construct(\PDO $pdo, $addressBooksTableName = 'addressbooks', $cardsTableName = 'cards', $addressBookChangesTableName = 'addressbookchanges') {
$this->pdo = $pdo;
$this->addressBooksTableName = $addressBooksTableName;
$this->cardsTableName = $cardsTableName;
$this->addressBookChangesTableName = $addressBookChangesTableName;
}
/**
* Returns the list of addressbooks for a specific user.
*
* @param string $principalUri
* @return array
*/
function getAddressBooksForUser($principalUri) {
$stmt = $this->pdo->prepare('SELECT id, uri, displayname, principaluri, description, synctoken FROM '.$this->addressBooksTableName.' WHERE principaluri = ?');
$stmt->execute([$principalUri]);
$addressBooks = [];
foreach($stmt->fetchAll() as $row) {
$addressBooks[] = [
'id' => $row['id'],
'uri' => $row['uri'],
'principaluri' => $row['principaluri'],
'{DAV:}displayname' => $row['displayname'],
'{' . CardDAV\Plugin::NS_CARDDAV . '}addressbook-description' => $row['description'],
'{http://calendarserver.org/ns/}getctag' => $row['synctoken'],
'{http://sabredav.org/ns}sync-token' => $row['synctoken']?$row['synctoken']:'0',
];
}
return $addressBooks;
}
/**
* 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 documenation for more info and examples.
*
* @param string $addressBookId
* @param \Sabre\DAV\PropPatch $propPatch
* @return void
*/
function updateAddressBook($addressBookId, \Sabre\DAV\PropPatch $propPatch) {
$supportedProperties = [
'{DAV:}displayname',
'{' . CardDAV\Plugin::NS_CARDDAV . '}addressbook-description',
];
$propPatch->handle($supportedProperties, function($mutations) use ($addressBookId) {
$updates = [];
foreach($mutations as $property=>$newValue) {
switch($property) {
case '{DAV:}displayname' :
$updates['displayname'] = $newValue;
break;
case '{' . CardDAV\Plugin::NS_CARDDAV . '}addressbook-description' :
$updates['description'] = $newValue;
break;
}
}
$query = 'UPDATE ' . $this->addressBooksTableName . ' SET ';
$first = true;
foreach($updates as $key=>$value) {
if ($first) {
$first = false;
} else {
$query.=', ';
}
$query.=' `' . $key . '` = :' . $key . ' ';
}
$query.=' WHERE id = :addressbookid';
$stmt = $this->pdo->prepare($query);
$updates['addressbookid'] = $addressBookId;
$stmt->execute($updates);
$this->addChange($addressBookId, "", 2);
return true;
});
}
/**
* Creates a new address book
*
* @param string $principalUri
* @param string $url Just the 'basename' of the url.
* @param array $properties
* @return void
*/
function createAddressBook($principalUri, $url, array $properties) {
$values = [
'displayname' => null,
'description' => null,
'principaluri' => $principalUri,
'uri' => $url,
];
foreach($properties as $property=>$newValue) {
switch($property) {
case '{DAV:}displayname' :
$values['displayname'] = $newValue;
break;
case '{' . CardDAV\Plugin::NS_CARDDAV . '}addressbook-description' :
$values['description'] = $newValue;
break;
default :
throw new DAV\Exception\BadRequest('Unknown property: ' . $property);
}
}
$query = 'INSERT INTO ' . $this->addressBooksTableName . ' (uri, displayname, description, principaluri, synctoken) VALUES (:uri, :displayname, :description, :principaluri, 1)';
$stmt = $this->pdo->prepare($query);
$stmt->execute($values);
return $this->pdo->lastInsertId();
}
/**
* Deletes an entire addressbook and all its contents
*
* @param int $addressBookId
* @return void
*/
function deleteAddressBook($addressBookId) {
$stmt = $this->pdo->prepare('DELETE FROM ' . $this->cardsTableName . ' WHERE addressbookid = ?');
$stmt->execute([$addressBookId]);
$stmt = $this->pdo->prepare('DELETE FROM ' . $this->addressBooksTableName . ' WHERE id = ?');
$stmt->execute([$addressBookId]);
$stmt = $this->pdo->prepare('DELETE FROM '.$this->addressBookChangesTableName.' WHERE addressbookid = ?');
$stmt->execute([$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 $addressbookId
* @return array
*/
function getCards($addressbookId) {
$stmt = $this->pdo->prepare('SELECT id, uri, lastmodified, etag, size FROM ' . $this->cardsTableName . ' WHERE addressbookid = ?');
$stmt->execute([$addressbookId]);
$result = [];
while($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
$row['etag'] = '"' . $row['etag'] . '"';
$result[] = $row;
}
return $result;
}
/**
* 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 $cardUri
* @return array
*/
function getCard($addressBookId, $cardUri) {
$stmt = $this->pdo->prepare('SELECT id, carddata, uri, lastmodified, etag, size FROM ' . $this->cardsTableName . ' WHERE addressbookid = ? AND uri = ? LIMIT 1');
$stmt->execute([$addressBookId, $cardUri]);
$result = $stmt->fetch(\PDO::FETCH_ASSOC);
if (!$result) return false;
$result['etag'] = '"' . $result['etag'] . '"';
return $result;
}
/**
* 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
* @param array $uris
* @return array
*/
function getMultipleCards($addressBookId, array $uris) {
return array_map(function($uri) use ($addressBookId) {
return $this->getCard($addressBookId, $uri);
}, $uris);
$query = 'SELECT id, uri, lastmodified, etag, size FROM ' . $this->cardsTableName . ' WHERE addressbookid = ? AND uri = IN (';
// Inserting a whole bunch of question marks
$query.=implode(',', array_fill(0, count($uris), '?'));
$query.=')';
$stmt = $this->pdo->prepare($query);
$stmt->execute(array_merge([$addressBookId], $uris));
$result = [];
while($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
$row['etag'] = '"' . $row['etag'] . '"';
$result[] = $row;
}
return $result;
}
/**
* 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 $cardData
* @return string|null
*/
function createCard($addressBookId, $cardUri, $cardData) {
$stmt = $this->pdo->prepare('INSERT INTO ' . $this->cardsTableName . ' (carddata, uri, lastmodified, addressbookid, size, etag) VALUES (?, ?, ?, ?, ?, ?)');
$etag = md5($cardData);
$stmt->execute([
$cardData,
$cardUri,
time(),
$addressBookId,
strlen($cardData),
$etag,
]);
$this->addChange($addressBookId, $cardUri, 1);
return '"' . $etag . '"';
}
/**
* 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 $cardData
* @return string|null
*/
function updateCard($addressBookId, $cardUri, $cardData) {
$stmt = $this->pdo->prepare('UPDATE ' . $this->cardsTableName . ' SET carddata = ?, lastmodified = ?, size = ?, etag = ? WHERE uri = ? AND addressbookid =?');
$etag = md5($cardData);
$stmt->execute([
$cardData,
time(),
strlen($cardData),
$etag,
$cardUri,
$addressBookId
]);
$this->addChange($addressBookId, $cardUri, 2);
return '"' . $etag . '"';
}
/**
* Deletes a card
*
* @param mixed $addressBookId
* @param string $cardUri
* @return bool
*/
function deleteCard($addressBookId, $cardUri) {
$stmt = $this->pdo->prepare('DELETE FROM ' . $this->cardsTableName . ' WHERE addressbookid = ? AND uri = ?');
$stmt->execute([$addressBookId, $cardUri]);
$this->addChange($addressBookId, $cardUri, 3);
return $stmt->rowCount()===1;
}
/**
* The getChanges method returns all the changes that have happened, since
* the specified syncToken in the specified address book.
*
* This function should return an array, such as the following:
*
* [
* 'syncToken' => 'The current synctoken',
* 'added' => [
* 'new.txt',
* ],
* 'modified' => [
* 'updated.txt',
* ],
* 'deleted' => [
* 'foo.php.bak',
* 'old.txt'
* ]
* ];
*
* The returned syncToken property should reflect the *current* syncToken
* of the addressbook, as reported in the {http://sabredav.org/ns}sync-token
* property. This is needed here too, to ensure the operation is atomic.
*
* If the $syncToken argument is specified as null, this is an initial
* sync, and all members should be reported.
*
* The modified property is an array of nodenames that have changed since
* the last token.
*
* The deleted property is an array with nodenames, that have been deleted
* from collection.
*
* The $syncLevel argument is basically the 'depth' of the report. If it's
* 1, you only have to report changes that happened only directly in
* immediate descendants. If it's 2, it should also include changes from
* the nodes below the child collections. (grandchildren)
*
* The $limit argument allows a client to specify how many results should
* be returned at most. If the limit is not specified, it should be treated
* as infinite.
*
* If the limit (infinite or not) is higher than you're willing to return,
* you should throw a Sabre\DAV\Exception\TooMuchMatches() exception.
*
* If the syncToken is expired (due to data cleanup) or unknown, you must
* return null.
*
* The limit is 'suggestive'. You are free to ignore it.
*
* @param string $addressBookId
* @param string $syncToken
* @param int $syncLevel
* @param int $limit
* @return array
*/
function getChangesForAddressBook($addressBookId, $syncToken, $syncLevel, $limit = null) {
// Current synctoken
$stmt = $this->pdo->prepare('SELECT synctoken FROM ' . $this->addressBooksTableName . ' WHERE id = ?');
$stmt->execute([ $addressBookId ]);
$currentToken = $stmt->fetchColumn(0);
if (is_null($currentToken)) return null;
$result = [
'syncToken' => $currentToken,
'added' => [],
'modified' => [],
'deleted' => [],
];
if ($syncToken) {
$query = "SELECT uri, operation FROM " . $this->addressBookChangesTableName . " WHERE synctoken >= ? AND synctoken < ? AND addressbookid = ? ORDER BY synctoken";
if ($limit>0) $query.= " LIMIT " . (int)$limit;
// Fetching all changes
$stmt = $this->pdo->prepare($query);
$stmt->execute([$syncToken, $currentToken, $addressBookId]);
$changes = [];
// This loop ensures that any duplicates are overwritten, only the
// last change on a node is relevant.
while($row = $stmt->fetch(\PDO::FETCH_ASSOC)) {
$changes[$row['uri']] = $row['operation'];
}
foreach($changes as $uri => $operation) {
switch($operation) {
case 1:
$result['added'][] = $uri;
break;
case 2:
$result['modified'][] = $uri;
break;
case 3:
$result['deleted'][] = $uri;
break;
}
}
} else {
// No synctoken supplied, this is the initial sync.
$query = "SELECT uri FROM " . $this->cardsTableName . " WHERE addressbookid = ?";
$stmt = $this->pdo->prepare($query);
$stmt->execute([$addressBookId]);
$result['added'] = $stmt->fetchAll(\PDO::FETCH_COLUMN);
}
return $result;
}
/**
* Adds a change record to the addressbookchanges table.
*
* @param mixed $addressBookId
* @param string $objectUri
* @param int $operation 1 = add, 2 = modify, 3 = delete
* @return void
*/
protected function addChange($addressBookId, $objectUri, $operation) {
$stmt = $this->pdo->prepare('INSERT INTO ' . $this->addressBookChangesTableName .' (uri, synctoken, addressbookid, operation) SELECT ?, synctoken, ?, ? FROM ' . $this->addressBooksTableName . ' WHERE id = ?');
$stmt->execute([
$objectUri,
$addressBookId,
$operation,
$addressBookId
]);
$stmt = $this->pdo->prepare('UPDATE ' . $this->addressBooksTableName . ' SET synctoken = synctoken + 1 WHERE id = ?');
$stmt->execute([
$addressBookId
]);
}
}
|