bc2ad74813
When you deleted a file in /cloud you was always jumped back to /cloud/[channel], now you will stay in the parent folder. Some more doxygen documentation. Removed duplicate data from logging output and reduced logging in RedDAV in general.
279 lines
7.5 KiB
PHP
279 lines
7.5 KiB
PHP
<?php
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namespace RedMatrix\RedDAV;
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use Sabre\DAV;
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/**
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* @brief This class represents a file in DAV.
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*
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* It provides all functions to work with files in Red's cloud through DAV protocol.
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*
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* @extends \Sabre\DAV\Node
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* @implements \Sabre\DAV\IFile
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*
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* @link http://github.com/friendica/red
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* @license http://opensource.org/licenses/mit-license.php The MIT License (MIT)
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*/
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class RedFile extends DAV\Node implements DAV\IFile {
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/**
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* The file from attach table.
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*
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* @var array
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* data
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* flags
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* filename (string)
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* filetype (string)
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*/
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private $data;
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/**
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* @see \Sabre\DAV\Auth\Backend\BackendInterface
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* @var \RedMatrix\RedDAV\RedBasicAuth
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*/
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private $auth;
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/**
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* @var string
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*/
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private $name;
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/**
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* Sets up the node, expects a full path name.
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*
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* @param string $name
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* @param array $data from attach table
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* @param &$auth
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*/
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public function __construct($name, $data, &$auth) {
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$this->name = $name;
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$this->data = $data;
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$this->auth = $auth;
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//logger(print_r($this->data, true), LOGGER_DATA);
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}
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/**
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* @brief Returns the name of the file.
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*
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* @return string
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*/
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public function getName() {
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//logger(basename($this->name), LOGGER_DATA);
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return basename($this->name);
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}
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/**
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* @brief Renames the file.
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*
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* @throw Sabre\DAV\Exception\Forbidden
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* @param string $name The new name of the file.
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* @return void
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*/
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public function setName($newName) {
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logger('old name ' . basename($this->name) . ' -> ' . $newName, LOGGER_DATA);
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if ((! $newName) || (! $this->auth->owner_id) || (! perm_is_allowed($this->auth->owner_id, $this->auth->observer, 'write_storage'))) {
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logger('permission denied '. $newName);
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throw new DAV\Exception\Forbidden('Permission denied.');
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}
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$newName = str_replace('/', '%2F', $newName);
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$r = q("UPDATE attach SET filename = '%s' WHERE hash = '%s' AND id = %d LIMIT 1",
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dbesc($this->data['filename']),
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intval($this->data['id'])
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);
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}
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/**
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* @brief Updates the data of the file.
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*
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* @param resource $data
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* @return void
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*/
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public function put($data) {
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logger('put file: ' . basename($this->name), LOGGER_DEBUG);
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$size = 0;
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// @todo only 3 values are needed
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$c = q("SELECT * FROM channel WHERE channel_id = %d AND NOT (channel_pageflags & %d) LIMIT 1",
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intval($this->auth->owner_id),
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intval(PAGE_REMOVED)
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);
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$r = q("SELECT flags, folder, data FROM attach WHERE hash = '%s' AND uid = %d LIMIT 1",
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dbesc($this->data['hash']),
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intval($c[0]['channel_id'])
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);
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if ($r) {
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if ($r[0]['flags'] & ATTACH_FLAG_OS) {
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$f = 'store/' . $this->auth->owner_nick . '/' . (($r[0]['data']) ? $r[0]['data'] : '');
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// @todo check return value and set $size directly
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@file_put_contents($f, $data);
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$size = @filesize($f);
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logger('filename: ' . $f . ' size: ' . $size, LOGGER_DEBUG);
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} else {
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$r = q("UPDATE attach SET data = '%s' WHERE hash = '%s' AND uid = %d LIMIT 1",
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dbesc(stream_get_contents($data)),
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dbesc($this->data['hash']),
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intval($this->data['uid'])
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);
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$r = q("SELECT length(data) AS fsize FROM attach WHERE hash = '%s' AND uid = %d LIMIT 1",
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dbesc($this->data['hash']),
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intval($this->data['uid'])
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);
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if ($r) {
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$size = $r[0]['fsize'];
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}
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}
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}
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// returns now()
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$edited = datetime_convert();
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$d = q("UPDATE attach SET filesize = '%s', edited = '%s' WHERE hash = '%s' AND uid = %d LIMIT 1",
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dbesc($size),
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dbesc($edited),
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dbesc($this->data['hash']),
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intval($c[0]['channel_id'])
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);
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// update the folder's lastmodified timestamp
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$e = q("UPDATE attach SET edited = '%s' WHERE hash = '%s' AND uid = %d LIMIT 1",
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dbesc($edited),
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dbesc($r[0]['folder']),
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intval($c[0]['channel_id'])
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);
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// @todo do we really want to remove the whole file if an update fails
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// because of maxfilesize or quota?
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// There is an Exception "InsufficientStorage" or "PaymentRequired" for
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// our service class from SabreDAV we could use.
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$maxfilesize = get_config('system', 'maxfilesize');
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if (($maxfilesize) && ($size > $maxfilesize)) {
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attach_delete($c[0]['channel_id'], $this->data['hash']);
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return;
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}
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$limit = service_class_fetch($c[0]['channel_id'], 'attach_upload_limit');
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if ($limit !== false) {
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$x = q("select sum(filesize) as total from attach where aid = %d ",
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intval($c[0]['channel_account_id'])
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);
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if (($x) && ($x[0]['total'] + $size > $limit)) {
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logger('service class limit exceeded for ' . $c[0]['channel_name'] . ' total usage is ' . $x[0]['total'] . ' limit is ' . $limit);
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attach_delete($c[0]['channel_id'], $this->data['hash']);
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return;
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}
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}
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}
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/**
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* @brief Returns the raw data.
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*
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* @return string
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*/
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public function get() {
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logger('get file ' . basename($this->name), LOGGER_DEBUG);
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$r = q("SELECT data, flags, filename, filetype FROM attach WHERE hash = '%s' AND uid = %d LIMIT 1",
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dbesc($this->data['hash']),
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intval($this->data['uid'])
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);
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if ($r) {
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// @todo this should be a global definition
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$unsafe_types = array('text/html', 'text/css', 'application/javascript');
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if (in_array($r[0]['filetype'], $unsafe_types)) {
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header('Content-disposition: attachment; filename="' . $r[0]['filename'] . '"');
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header('Content-type: text/plain');
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}
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if ($r[0]['flags'] & ATTACH_FLAG_OS ) {
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$f = 'store/' . $this->auth->owner_nick . '/' . (($this->os_path) ? $this->os_path . '/' : '') . $r[0]['data'];
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return fopen($f, 'rb');
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}
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return $r[0]['data'];
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}
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}
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/**
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* @brief Returns the ETag for a file.
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*
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* An ETag is a unique identifier representing the current version of the file.
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* If the file changes, the ETag MUST change.
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* The ETag is an arbitrary string, but MUST be surrounded by double-quotes.
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*
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* Return null if the ETag can not effectively be determined.
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*
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* @return null|string
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*/
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public function getETag() {
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$ret = null;
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if ($this->data['hash']) {
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$ret = '"' . $this->data['hash'] . '"';
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}
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return $ret;
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}
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/**
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* @brief Returns the mime-type for a file.
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*
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* If null is returned, we'll assume application/octet-stream
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*
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* @return mixed
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*/
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public function getContentType() {
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// @todo this should be a global definition.
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$unsafe_types = array('text/html', 'text/css', 'application/javascript');
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if (in_array($this->data['filetype'], $unsafe_types)) {
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return 'text/plain';
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}
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return $this->data['filetype'];
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}
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/**
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* @brief Returns the size of the node, in bytes.
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*
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* @return int
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* filesize in bytes
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*/
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public function getSize() {
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return $this->data['filesize'];
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}
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/**
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* @brief Returns the last modification time for the file, as a unix
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* timestamp.
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*
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* @return int last modification time in UNIX timestamp
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*/
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public function getLastModified() {
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return datetime_convert('UTC', 'UTC', $this->data['edited'], 'U');
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}
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/**
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* @brief Delete the file.
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*
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* This method checks the permissions and then calls attach_delete() function
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* to actually remove the file.
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*
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* @throw \Sabre\DAV\Exception\Forbidden
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*/
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public function delete() {
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logger('delete file ' . basename($this->name), LOGGER_DEBUG);
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if ((! $this->auth->owner_id) || (! perm_is_allowed($this->auth->owner_id, $this->auth->observer, 'write_storage'))) {
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throw new DAV\Exception\Forbidden('Permission denied.');
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}
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if ($this->auth->owner_id !== $this->auth->channel_id) {
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if (($this->auth->observer !== $this->data['creator']) || ($this->data['flags'] & ATTACH_FLAG_DIR)) {
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throw new DAV\Exception\Forbidden('Permission denied.');
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}
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}
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attach_delete($this->auth->owner_id, $this->data['hash']);
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}
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} |