nextcloud/apps/files_sharing/lib/api.php

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<?php
/**
* ownCloud
*
* @author Bjoern Schiessle
* @copyright 2013 Bjoern Schiessle schiessle@owncloud.com
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
*
* You should have received a copy of the GNU Affero General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
namespace OCA\Files\Share;
class Api {
/**
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* @brief get share information for a given file/folder path is encoded in URL
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*
* @param array $params which contains a 'path' to a file/folder
* @return \OC_OCS_Result share information
*/
public static function getShare($params) {
$path = $params['path'];
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$fileId = self::getFileId($path);
if ($fileId !== null) {
$share = \OCP\Share::getItemShared('file', $fileId);
} else {
$share = null;
}
if ($share !== null) {
return new \OC_OCS_Result($share);
} else {
return new \OC_OCS_Result(null, 404, 'file/folder doesn\'t exists');
}
}
/**
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* @brief share file with a user/group, path to file is encoded in URL
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*
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* @param array $params with following parameters 'shareWith', 'shareType', 'path'
* optional 'publicUpload' and 'password' for public shares
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* @return \OC_OCS_Result result of share operation
*/
public static function setShare($params) {
$path = $params['path'];
$itemSource = self::getFileId($path);
$itemType = self::getItemType($path);
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if($itemSource === null) {
return new \OC_OCS_Result(null, 404, "wrong path, file/folder doesn't exist.");
}
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$shareWith = isset($_POST['shareWith']) ? $_POST['shareWith'] : null;
$shareType = isset($_POST['shareType']) ? (int)$_POST['shareType'] : null;
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switch($shareType) {
case \OCP\Share::SHARE_TYPE_USER:
$permission = isset($_POST['permission']) ? (int)$_POST['permission'] : 31;
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break;
case \OCP\Share::SHARE_TYPE_GROUP:
$permission = isset($_POST['permission']) ? (int)$_POST['permission'] : 31;
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break;
case \OCP\Share::SHARE_TYPE_LINK:
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//allow password protection
$shareWith = isset($_POST['password']) ? $_POST['password'] : null;
//check public link share
$publicUploadEnabled = \OC_Appconfig::getValue('core', 'shareapi_allow_public_upload', 'yes');
$encryptionEnabled = \OC_App::isEnabled('files_encryption');
if(isset($_POST['publicUpload']) &&
($encryptionEnabled || $publicUploadEnabled !== 'yes')) {
return new \OC_OCS_Result(null, 404, "public upload disabled by the administrator");
}
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$publicUpload = isset($_POST['publicUpload']) ? $_POST['publicUpload'] : 'no';
// read, create, update (7) if public upload is enabled or
// read (1) if public upload is disabled
$permission = $publicUpload === 'yes' ? 7 : 1;
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break;
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}
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try {
$token = \OCP\Share::shareItem(
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$itemType,
$itemSource,
$shareType,
$shareWith,
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$permission
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);
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} catch (\Exception $e) {
return new \OC_OCS_Result(null, 404, $e->getMessage());
}
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if ($token) {
$data = null;
if(is_string($token)) { //public link share
$url = \OCP\Util::linkToPublic('files&t='.$token);
$data = array('url' => $url, // '&' gets encoded to $amp;
'token' => $token);
}
return new \OC_OCS_Result($data);
} else {
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return new \OC_OCS_Result(null, 404, "couldn't share file");
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}
}
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/**
* @brief set permission for a share, path to file is encoded in URL
* @param array $params contain 'shareWith', 'shareType', 'permission'
* @return \OC_OCS_Result
*/
public static function setPermission($params) {
$path = $params['path'];
$itemSource = self::getFileId($path);
$itemType = self::getItemType($path);
if($itemSource === null) {
return new \OC_OCS_Result(null, 404, "wrong path, file/folder doesn't exist.");
}
$shareWith = isset($_POST['shareWith']) ? $_POST['shareWith'] : null;
$shareType = isset($_POST['shareType']) ? (int)$_POST['shareType'] : null;
$permission = isset($_POST['permission']) ? (int)$_POST['permission'] : null;
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try {
$return = \OCP\Share::setPermissions(
$itemType,
$itemSource,
$shareType,
$shareWith,
$permission
);
} catch (\Exception $e) {
return new \OC_OCS_Result(null, 404, $e->getMessage());
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}
if ($return) {
return new \OC_OCS_Result();
} else {
return new \OC_OCS_Result(null, 404, "couldn't set permissions");
}
}
/**
* @brief set expire date, path to file is encoded in URL
* @param array $params contains 'expire' (format DD-MM-YYYY)
* @return \OC_OCS_Result
*/
public static function setExpire($params) {
$path = $params['path'];
$itemSource = self::getFileId($path);
$itemType = self::getItemType($path);
if($itemSource === null) {
return new \OC_OCS_Result(null, 404, "wrong path, file/folder doesn't exist.");
}
$expire = isset($_POST['expire']) ? (int)$_POST['expire'] : null;
$return = false;
if ($expire) {
$return = \OCP\Share::setExpirationDate($itemType, $itemSource, $expire);
}
if ($return) {
return new \OC_OCS_Result();
} else {
$msg = "Failed, please check the expire date, expected format 'DD-MM-YYYY'.";
return new \OC_OCS_Result(null, 404, $msg);
}
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}
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/**
* @brief unshare a file/folder
* @param array $params with following parameters 'shareWith', 'shareType', 'path'
* @return \OC_OCS_Result
*/
public static function setUnshare($params) {
$path = $params['path'];
$itemSource = self::getFileId($path);
$itemType = self::getItemType($path);
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if($itemSource === null) {
return new \OC_OCS_Result(null, 404, "wrong path, file/folder doesn't exist.");
}
$shareWith = isset($_POST['shareWith']) ? $_POST['shareWith'] : null;
$shareType = isset($_POST['shareType']) ? (int)$_POST['shareType'] : null;
if( $shareType == \OCP\Share::SHARE_TYPE_LINK) {
$shareWith = null;
}
try {
$return = \OCP\Share::unshare(
$itemType,
$itemSource,
$shareType,
$shareWith);
} catch (\Exception $e) {
return new \OC_OCS_Result(null, 404, $e->getMessage());
}
if ($return) {
return new \OC_OCS_Result();
} else {
$msg = "Unshare Failed";
return new \OC_OCS_Result(null, 404, $msg);
}
}
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/**
* @brief get file ID from a given path
* @param string $path
* @return string fileID or null
*/
private static function getFileId($path) {
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$view = new \OC\Files\View('/'.\OCP\User::getUser().'/files');
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$fileId = null;
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$fileInfo = $view->getFileInfo($path);
if ($fileInfo) {
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$fileId = $fileInfo['fileid'];
}
return $fileId;
}
/**
* @brief get itemType
* @param string $path
* @return string type 'file', 'folder' or null of file/folder doesn't exists
*/
private static function getItemType($path) {
$view = new \OC\Files\View('/'.\OCP\User::getUser().'/files');
$itemType = null;
if ($view->is_dir($path)) {
$itemType = "folder";
} elseif ($view->is_file($path)) {
$itemType = "file";
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}
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return $itemType;
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}
}