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authorredmatrix <git@macgirvin.com>2016-02-19 00:06:10 -0800
committerredmatrix <git@macgirvin.com>2016-02-19 00:06:10 -0800
commit28d07fd6b2b48632edadc94055c1be8a0cb11274 (patch)
tree3f32eb951b3a3fae05ae7be1566d66a1293b1339 /Zotlabs/Storage
parent5a7b994e59306519574ce7aaa004f08d7d47ee05 (diff)
downloadvolse-hubzilla-28d07fd6b2b48632edadc94055c1be8a0cb11274.tar.gz
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move storage assets to zotlabs/storage
Diffstat (limited to 'Zotlabs/Storage')
-rw-r--r--Zotlabs/Storage/BasicAuth.php212
-rw-r--r--Zotlabs/Storage/Browser.php372
-rw-r--r--Zotlabs/Storage/Directory.php536
-rw-r--r--Zotlabs/Storage/File.php322
4 files changed, 1442 insertions, 0 deletions
diff --git a/Zotlabs/Storage/BasicAuth.php b/Zotlabs/Storage/BasicAuth.php
new file mode 100644
index 000000000..d93525d20
--- /dev/null
+++ b/Zotlabs/Storage/BasicAuth.php
@@ -0,0 +1,212 @@
+<?php
+
+namespace Zotlabs\Storage;
+
+use Sabre\DAV;
+
+/**
+ * @brief Authentication backend class for DAV.
+ *
+ * This class also contains some data which is not necessary for authentication
+ * like timezone settings.
+ *
+ * @extends Sabre\DAV\Auth\Backend\AbstractBasic
+ *
+ * @link http://github.com/friendica/red
+ * @license http://opensource.org/licenses/mit-license.php The MIT License (MIT)
+ */
+class BasicAuth extends DAV\Auth\Backend\AbstractBasic {
+
+ /**
+ * @brief This variable holds the currently logged-in channel_address.
+ *
+ * It is used for building path in filestorage/.
+ *
+ * @var string|null
+ */
+ protected $channel_name = null;
+ /**
+ * channel_id of the current channel of the logged-in account.
+ *
+ * @var int
+ */
+ public $channel_id = 0;
+ /**
+ * channel_hash of the current channel of the logged-in account.
+ *
+ * @var string
+ */
+ public $channel_hash = '';
+ /**
+ * Set in mod/cloud.php to observer_hash.
+ *
+ * @var string
+ */
+ public $observer = '';
+ /**
+ *
+ * @see Browser::set_writeable()
+ * @var \Sabre\DAV\Browser\Plugin
+ */
+ public $browser;
+ /**
+ * channel_id of the current visited path. Set in Directory::getDir().
+ *
+ * @var int
+ */
+ public $owner_id = 0;
+ /**
+ * channel_name of the current visited path. Set in Directory::getDir().
+ *
+ * Used for creating the path in cloud/
+ *
+ * @var string
+ */
+ public $owner_nick = '';
+ /**
+ * Timezone from the visiting channel's channel_timezone.
+ *
+ * Used in @ref RedBrowser
+ *
+ * @var string
+ */
+ protected $timezone = '';
+
+
+ /**
+ * @brief Validates a username and password.
+ *
+ * Guest access is granted with the password "+++".
+ *
+ * @see \Sabre\DAV\Auth\Backend\AbstractBasic::validateUserPass
+ * @param string $username
+ * @param string $password
+ * @return bool
+ */
+ protected function validateUserPass($username, $password) {
+ if (trim($password) === '+++') {
+ logger('guest: ' . $username);
+ return true;
+ }
+
+ require_once('include/auth.php');
+ $record = account_verify_password($username, $password);
+ if ($record && $record['account_default_channel']) {
+ $r = q("SELECT * FROM channel WHERE channel_account_id = %d AND channel_id = %d LIMIT 1",
+ intval($record['account_id']),
+ intval($record['account_default_channel'])
+ );
+ if ($r) {
+ return $this->setAuthenticated($r[0]);
+ }
+ }
+ $r = q("SELECT * FROM channel WHERE channel_address = '%s' LIMIT 1",
+ dbesc($username)
+ );
+ if ($r) {
+ $x = q("SELECT account_flags, account_salt, account_password FROM account WHERE account_id = %d LIMIT 1",
+ intval($r[0]['channel_account_id'])
+ );
+ if ($x) {
+ // @fixme this foreach should not be needed?
+ foreach ($x as $record) {
+ if (($record['account_flags'] == ACCOUNT_OK) || ($record['account_flags'] == ACCOUNT_UNVERIFIED)
+ && (hash('whirlpool', $record['account_salt'] . $password) === $record['account_password'])) {
+ logger('password verified for ' . $username);
+ return $this->setAuthenticated($r[0]);
+ }
+ }
+ }
+ }
+
+ $error = 'password failed for ' . $username;
+ logger($error);
+ log_failed_login($error);
+
+ return false;
+ }
+
+ /**
+ * @brief Sets variables and session parameters after successfull authentication.
+ *
+ * @param array $r
+ * Array with the values for the authenticated channel.
+ * @return bool
+ */
+ protected function setAuthenticated($r) {
+ $this->channel_name = $r['channel_address'];
+ $this->channel_id = $r['channel_id'];
+ $this->channel_hash = $this->observer = $r['channel_hash'];
+ $_SESSION['uid'] = $r['channel_id'];
+ $_SESSION['account_id'] = $r['channel_account_id'];
+ $_SESSION['authenticated'] = true;
+ return true;
+ }
+
+ /**
+ * Sets the channel_name from the currently logged-in channel.
+ *
+ * @param string $name
+ * The channel's name
+ */
+ public function setCurrentUser($name) {
+ $this->channel_name = $name;
+ }
+ /**
+ * Returns information about the currently logged-in channel.
+ *
+ * If nobody is currently logged in, this method should return null.
+ *
+ * @see \Sabre\DAV\Auth\Backend\AbstractBasic::getCurrentUser
+ * @return string|null
+ */
+ public function getCurrentUser() {
+ return $this->channel_name;
+ }
+
+ /**
+ * @brief Sets the timezone from the channel in RedBasicAuth.
+ *
+ * Set in mod/cloud.php if the channel has a timezone set.
+ *
+ * @param string $timezone
+ * The channel's timezone.
+ * @return void
+ */
+ public function setTimezone($timezone) {
+ $this->timezone = $timezone;
+ }
+ /**
+ * @brief Returns the timezone.
+ *
+ * @return string
+ * Return the channel's timezone.
+ */
+ public function getTimezone() {
+ return $this->timezone;
+ }
+
+ /**
+ * @brief Set browser plugin for SabreDAV.
+ *
+ * @see RedBrowser::set_writeable()
+ * @param \Sabre\DAV\Browser\Plugin $browser
+ */
+ public function setBrowserPlugin($browser) {
+ $this->browser = $browser;
+ }
+
+ /**
+ * @brief Prints out all BasicAuth variables to logger().
+ *
+ * @return void
+ */
+ public function log() {
+ logger('channel_name ' . $this->channel_name, LOGGER_DATA);
+ logger('channel_id ' . $this->channel_id, LOGGER_DATA);
+ logger('channel_hash ' . $this->channel_hash, LOGGER_DATA);
+ logger('observer ' . $this->observer, LOGGER_DATA);
+ logger('owner_id ' . $this->owner_id, LOGGER_DATA);
+ logger('owner_nick ' . $this->owner_nick, LOGGER_DATA);
+ }
+} \ No newline at end of file
diff --git a/Zotlabs/Storage/Browser.php b/Zotlabs/Storage/Browser.php
new file mode 100644
index 000000000..fde443e6f
--- /dev/null
+++ b/Zotlabs/Storage/Browser.php
@@ -0,0 +1,372 @@
+<?php
+
+namespace Zotlabs\Storage;
+
+use Sabre\DAV;
+
+/**
+ * @brief Provides a DAV frontend for the webbrowser.
+ *
+ * RedBrowser is a SabreDAV server-plugin to provide a view to the DAV storage
+ * for the webbrowser.
+ *
+ * @extends \Sabre\DAV\Browser\Plugin
+ *
+ * @link http://github.com/friendica/red
+ * @license http://opensource.org/licenses/mit-license.php The MIT License (MIT)
+ */
+class Browser extends DAV\Browser\Plugin {
+
+ /**
+ * @see set_writeable()
+ * @see \Sabre\DAV\Auth\Backend\BackendInterface
+ * @var RedBasicAuth
+ */
+ private $auth;
+
+ /**
+ * @brief Constructor for RedBrowser class.
+ *
+ * $enablePost will be activated through set_writeable() in a later stage.
+ * At the moment the write_storage permission is only valid for the whole
+ * folder. No file specific permissions yet.
+ * @todo disable enablePost by default and only activate if permissions
+ * grant edit rights.
+ *
+ * Disable assets with $enableAssets = false. Should get some thumbnail views
+ * anyway.
+ *
+ * @param RedBasicAuth &$auth
+ */
+ public function __construct(&$auth) {
+ $this->auth = $auth;
+ parent::__construct(true, false);
+ }
+
+ /**
+ * The DAV browser is instantiated after the auth module and directory classes
+ * but before we know the current directory and who the owner and observer
+ * are. So we add a pointer to the browser into the auth module and vice versa.
+ * Then when we've figured out what directory is actually being accessed, we
+ * call the following function to decide whether or not to show web elements
+ * which include writeable objects.
+ *
+ * @fixme It only disable/enable the visible parts. Not the POST handler
+ * which handels the actual requests when uploading files or creating folders.
+ *
+ * @todo Maybe this whole way of doing this can be solved with some
+ * $server->subscribeEvent().
+ */
+ public function set_writeable() {
+ if (! $this->auth->owner_id) {
+ $this->enablePost = false;
+ }
+
+ if (! perm_is_allowed($this->auth->owner_id, get_observer_hash(), 'write_storage')) {
+ $this->enablePost = false;
+ } else {
+ $this->enablePost = true;
+ }
+ }
+
+ /**
+ * @brief Creates the directory listing for the given path.
+ *
+ * @param string $path which should be displayed
+ */
+ public function generateDirectoryIndex($path) {
+ // (owner_id = channel_id) is visitor owner of this directory?
+ $is_owner = ((local_channel() && $this->auth->owner_id == local_channel()) ? true : false);
+
+ if ($this->auth->getTimezone())
+ date_default_timezone_set($this->auth->getTimezone());
+
+ require_once('include/conversation.php');
+ require_once('include/text.php');
+ if ($this->auth->owner_nick) {
+ $html = profile_tabs(get_app(), (($is_owner) ? true : false), $this->auth->owner_nick);
+ }
+
+ $files = $this->server->getPropertiesForPath($path, array(
+ '{DAV:}displayname',
+ '{DAV:}resourcetype',
+ '{DAV:}getcontenttype',
+ '{DAV:}getcontentlength',
+ '{DAV:}getlastmodified',
+ ), 1);
+
+
+ $parent = $this->server->tree->getNodeForPath($path);
+
+ $parentpath = array();
+ // only show parent if not leaving /cloud/; TODO how to improve this?
+ if ($path && $path != "cloud") {
+ list($parentUri) = DAV\URLUtil::splitPath($path);
+ $fullPath = DAV\URLUtil::encodePath($this->server->getBaseUri() . $parentUri);
+
+ $parentpath['icon'] = $this->enableAssets ? '<a href="' . $fullPath . '"><img src="' . $this->getAssetUrl('icons/parent' . $this->iconExtension) . '" width="24" alt="' . t('parent') . '"></a>' : '';
+ $parentpath['path'] = $fullPath;
+ }
+
+ $f = array();
+ foreach ($files as $file) {
+ $ft = array();
+ $type = null;
+
+ // This is the current directory, we can skip it
+ if (rtrim($file['href'],'/') == $path) continue;
+
+ list(, $name) = DAV\URLUtil::splitPath($file['href']);
+
+ if (isset($file[200]['{DAV:}resourcetype'])) {
+ $type = $file[200]['{DAV:}resourcetype']->getValue();
+
+ // resourcetype can have multiple values
+ if (!is_array($type)) $type = array($type);
+
+ foreach ($type as $k=>$v) {
+ // Some name mapping is preferred
+ switch ($v) {
+ case '{DAV:}collection' :
+ $type[$k] = t('Collection');
+ break;
+ case '{DAV:}principal' :
+ $type[$k] = t('Principal');
+ break;
+ case '{urn:ietf:params:xml:ns:carddav}addressbook' :
+ $type[$k] = t('Addressbook');
+ break;
+ case '{urn:ietf:params:xml:ns:caldav}calendar' :
+ $type[$k] = t('Calendar');
+ break;
+ case '{urn:ietf:params:xml:ns:caldav}schedule-inbox' :
+ $type[$k] = t('Schedule Inbox');
+ break;
+ case '{urn:ietf:params:xml:ns:caldav}schedule-outbox' :
+ $type[$k] = t('Schedule Outbox');
+ break;
+ case '{http://calendarserver.org/ns/}calendar-proxy-read' :
+ $type[$k] = 'Proxy-Read';
+ break;
+ case '{http://calendarserver.org/ns/}calendar-proxy-write' :
+ $type[$k] = 'Proxy-Write';
+ break;
+ }
+ }
+ $type = implode(', ', $type);
+ }
+
+ // If no resourcetype was found, we attempt to use
+ // the contenttype property
+ if (!$type && isset($file[200]['{DAV:}getcontenttype'])) {
+ $type = $file[200]['{DAV:}getcontenttype'];
+ }
+ if (!$type) $type = t('Unknown');
+
+ $size = isset($file[200]['{DAV:}getcontentlength']) ? (int)$file[200]['{DAV:}getcontentlength'] : '';
+ $lastmodified = ((isset($file[200]['{DAV:}getlastmodified'])) ? $file[200]['{DAV:}getlastmodified']->getTime()->format('Y-m-d H:i:s') : '');
+
+ $fullPath = DAV\URLUtil::encodePath('/' . trim($this->server->getBaseUri() . ($path ? $path . '/' : '') . $name, '/'));
+
+
+ $displayName = isset($file[200]['{DAV:}displayname']) ? $file[200]['{DAV:}displayname'] : $name;
+
+ $displayName = $this->escapeHTML($displayName);
+ $type = $this->escapeHTML($type);
+
+ $icon = '';
+
+ if ($this->enableAssets) {
+ $node = $this->server->tree->getNodeForPath(($path ? $path . '/' : '') . $name);
+ foreach (array_reverse($this->iconMap) as $class=>$iconName) {
+ if ($node instanceof $class) {
+ $icon = '<a href="' . $fullPath . '"><img src="' . $this->getAssetUrl($iconName . $this->iconExtension) . '" alt="" width="24"></a>';
+ break;
+ }
+ }
+ }
+
+ $parentHash = '';
+ $owner = $this->auth->owner_id;
+ $splitPath = explode('/', $fullPath);
+ if (count($splitPath) > 3) {
+ for ($i = 3; $i < count($splitPath); $i++) {
+ $attachName = urldecode($splitPath[$i]);
+ $attachHash = $this->findAttachHash($owner, $parentHash, $attachName);
+ $parentHash = $attachHash;
+ }
+ }
+
+ $attachIcon = ""; // "<a href=\"attach/".$attachHash."\" title=\"".$displayName."\"><i class=\"icon-download\"></i></a>";
+
+ // put the array for this file together
+ $ft['attachId'] = $this->findAttachIdByHash($attachHash);
+ $ft['fileStorageUrl'] = substr($fullPath, 0, strpos($fullPath, "cloud/")) . "filestorage/" . $this->auth->getCurrentUser();
+ $ft['icon'] = $icon;
+ $ft['attachIcon'] = (($size) ? $attachIcon : '');
+ // @todo Should this be an item value, not a global one?
+ $ft['is_owner'] = $is_owner;
+ $ft['fullPath'] = $fullPath;
+ $ft['displayName'] = $displayName;
+ $ft['type'] = $type;
+ $ft['size'] = $size;
+ $ft['sizeFormatted'] = userReadableSize($size);
+ $ft['lastmodified'] = (($lastmodified) ? datetime_convert('UTC', date_default_timezone_get(), $lastmodified) : '');
+ $ft['iconFromType'] = getIconFromType($type);
+
+ $f[] = $ft;
+ }
+
+ $output = '';
+ if ($this->enablePost) {
+ $this->server->broadcastEvent('onHTMLActionsPanel', array($parent, &$output));
+ }
+
+ $html .= replace_macros(get_markup_template('cloud.tpl'), array(
+ '$header' => t('Files') . ": " . $this->escapeHTML($path) . "/",
+ '$total' => t('Total'),
+ '$actionspanel' => $output,
+ '$shared' => t('Shared'),
+ '$create' => t('Create'),
+ '$upload' => t('Upload'),
+ '$is_owner' => $is_owner,
+ '$parentpath' => $parentpath,
+ '$entries' => $f,
+ '$name' => t('Name'),
+ '$type' => t('Type'),
+ '$size' => t('Size'),
+ '$lastmod' => t('Last Modified'),
+ '$parent' => t('parent'),
+ '$edit' => t('Edit'),
+ '$delete' => t('Delete'),
+ '$nick' => $this->auth->getCurrentUser()
+ ));
+
+ $a = get_app();
+ $a->page['content'] = $html;
+ load_pdl($a);
+
+ $theme_info_file = "view/theme/" . current_theme() . "/php/theme.php";
+ if (file_exists($theme_info_file)){
+ require_once($theme_info_file);
+ if (function_exists(str_replace('-', '_', current_theme()) . '_init')) {
+ $func = str_replace('-', '_', current_theme()) . '_init';
+ $func($a);
+ }
+ }
+ construct_page($a);
+ }
+
+ /**
+ * @brief Creates a form to add new folders and upload files.
+ *
+ * @param \Sabre\DAV\INode $node
+ * @param string &$output
+ */
+ public function htmlActionsPanel(DAV\INode $node, &$output) {
+ if (! $node instanceof DAV\ICollection)
+ return;
+
+ // We also know fairly certain that if an object is a non-extended
+ // SimpleCollection, we won't need to show the panel either.
+ if (get_class($node) === 'Sabre\\DAV\\SimpleCollection')
+ return;
+
+ // Storage and quota for the account (all channels of the owner of this directory)!
+ $limit = service_class_fetch($owner, 'attach_upload_limit');
+ $r = q("SELECT SUM(filesize) AS total FROM attach WHERE aid = %d",
+ intval($this->auth->channel_account_id)
+ );
+ $used = $r[0]['total'];
+ if ($used) {
+ $quotaDesc = t('You are using %1$s of your available file storage.');
+ $quotaDesc = sprintf($quotaDesc,
+ userReadableSize($used));
+ }
+ if ($limit && $used) {
+ $quotaDesc = t('You are using %1$s of %2$s available file storage. (%3$s&#37;)');
+ $quotaDesc = sprintf($quotaDesc,
+ userReadableSize($used),
+ userReadableSize($limit),
+ round($used / $limit, 1) * 100);
+ }
+
+ // prepare quota for template
+ $quota = array();
+ $quota['used'] = $used;
+ $quota['limit'] = $limit;
+ $quota['desc'] = $quotaDesc;
+ $quota['warning'] = ((($limit) && ((round($used / $limit, 1) * 100) >= 90)) ? t('WARNING:') : ''); // 10485760 bytes = 100MB
+
+ $output .= replace_macros(get_markup_template('cloud_actionspanel.tpl'), array(
+ '$folder_header' => t('Create new folder'),
+ '$folder_submit' => t('Create'),
+ '$upload_header' => t('Upload file'),
+ '$upload_submit' => t('Upload'),
+ '$quota' => $quota
+ ));
+ }
+
+ /**
+ * This method takes a path/name of an asset and turns it into url
+ * suiteable for http access.
+ *
+ * @param string $assetName
+ * @return string
+ */
+ protected function getAssetUrl($assetName) {
+ return z_root() . '/cloud/?sabreAction=asset&assetName=' . urlencode($assetName);
+ }
+
+ /**
+ * @brief Return the hash of an attachment.
+ *
+ * Given the owner, the parent folder and and attach name get the attachment
+ * hash.
+ *
+ * @param int $owner
+ * The owner_id
+ * @param string $hash
+ * The parent's folder hash
+ * @param string $attachName
+ * The name of the attachment
+ * @return string
+ */
+
+ protected function findAttachHash($owner, $parentHash, $attachName) {
+ $r = q("SELECT hash FROM attach WHERE uid = %d AND folder = '%s' AND filename = '%s' ORDER BY edited DESC LIMIT 1",
+ intval($owner),
+ dbesc($parentHash),
+ dbesc($attachName)
+ );
+ $hash = "";
+ if ($r) {
+ foreach ($r as $rr) {
+ $hash = $rr['hash'];
+ }
+ }
+ return $hash;
+ }
+
+ /**
+ * @brief Returns an attachment's id for a given hash.
+ *
+ * This id is used to access the attachment in filestorage/
+ *
+ * @param string $attachHash
+ * The hash of an attachment
+ * @return string
+ */
+ protected function findAttachIdByHash($attachHash) {
+ $r = q("SELECT id FROM attach WHERE hash = '%s' ORDER BY edited DESC LIMIT 1",
+ dbesc($attachHash)
+ );
+ $id = "";
+ if ($r) {
+ foreach ($r as $rr) {
+ $id = $rr['id'];
+ }
+ }
+ return $id;
+ }
+}
diff --git a/Zotlabs/Storage/Directory.php b/Zotlabs/Storage/Directory.php
new file mode 100644
index 000000000..e38d76914
--- /dev/null
+++ b/Zotlabs/Storage/Directory.php
@@ -0,0 +1,536 @@
+<?php
+
+namespace Zotlabs\Storage;
+
+use Sabre\DAV;
+
+/**
+ * @brief RedDirectory class.
+ *
+ * A class that represents a directory.
+ *
+ * @extends \Sabre\DAV\Node
+ * @implements \Sabre\DAV\ICollection
+ * @implements \Sabre\DAV\IQuota
+ *
+ * @link http://github.com/friendica/red
+ * @license http://opensource.org/licenses/mit-license.php The MIT License (MIT)
+ */
+class Directory extends DAV\Node implements DAV\ICollection, DAV\IQuota {
+
+ /**
+ * @brief The path inside /cloud
+ *
+ * @var string
+ */
+ private $red_path;
+ private $folder_hash;
+ /**
+ * @brief The full path as seen in the browser.
+ * /cloud + $red_path
+ * @todo I think this is not used anywhere, we always strip '/cloud' and only use it in debug
+ * @var string
+ */
+ private $ext_path;
+ private $root_dir = '';
+ private $auth;
+ /**
+ * @brief The real path on the filesystem.
+ * The actual path in store/ with the hashed names.
+ *
+ * @var string
+ */
+ private $os_path = '';
+
+ /**
+ * @brief Sets up the directory node, expects a full path.
+ *
+ * @param string $ext_path a full path
+ * @param RedBasicAuth &$auth_plugin
+ */
+ public function __construct($ext_path, &$auth_plugin) {
+// $ext_path = urldecode($ext_path);
+ logger('directory ' . $ext_path, LOGGER_DATA);
+ $this->ext_path = $ext_path;
+ // remove "/cloud" from the beginning of the path
+ $modulename = get_app()->module;
+ $this->red_path = ((strpos($ext_path, '/' . $modulename) === 0) ? substr($ext_path, strlen($modulename) + 1) : $ext_path);
+ if (! $this->red_path) {
+ $this->red_path = '/';
+ }
+ $this->auth = $auth_plugin;
+ $this->folder_hash = '';
+ $this->getDir();
+
+ if ($this->auth->browser) {
+ $this->auth->browser->set_writeable();
+ }
+ }
+
+ private function log() {
+ logger('ext_path ' . $this->ext_path, LOGGER_DATA);
+ logger('os_path ' . $this->os_path, LOGGER_DATA);
+ logger('red_path ' . $this->red_path, LOGGER_DATA);
+ }
+
+ /**
+ * @brief Returns an array with all the child nodes.
+ *
+ * @throw \Sabre\DAV\Exception\Forbidden
+ * @return array \Sabre\DAV\INode[]
+ */
+ public function getChildren() {
+ logger('children for ' . $this->ext_path, LOGGER_DATA);
+ $this->log();
+
+ if (get_config('system', 'block_public') && (! $this->auth->channel_id) && (! $this->auth->observer)) {
+ throw new DAV\Exception\Forbidden('Permission denied.');
+ }
+
+ if (($this->auth->owner_id) && (! perm_is_allowed($this->auth->owner_id, $this->auth->observer, 'view_storage'))) {
+ throw new DAV\Exception\Forbidden('Permission denied.');
+ }
+
+ $contents = RedCollectionData($this->red_path, $this->auth);
+ return $contents;
+ }
+
+ /**
+ * @brief Returns a child by name.
+ *
+ *
+ * @throw \Sabre\DAV\Exception\Forbidden
+ * @throw \Sabre\DAV\Exception\NotFound
+ * @param string $name
+ */
+ public function getChild($name) {
+ logger($name, LOGGER_DATA);
+
+ if (get_config('system', 'block_public') && (! $this->auth->channel_id) && (! $this->auth->observer)) {
+ throw new DAV\Exception\Forbidden('Permission denied.');
+ }
+
+ if (($this->auth->owner_id) && (! perm_is_allowed($this->auth->owner_id, $this->auth->observer, 'view_storage'))) {
+ throw new DAV\Exception\Forbidden('Permission denied.');
+ }
+
+ $modulename = get_app()->module;
+ if ($this->red_path === '/' && $name === $modulename) {
+ return new Directory('/' . $modulename, $this->auth);
+ }
+
+ $x = RedFileData($this->ext_path . '/' . $name, $this->auth);
+ if ($x) {
+ return $x;
+ }
+
+ throw new DAV\Exception\NotFound('The file with name: ' . $name . ' could not be found.');
+ }
+
+ /**
+ * @brief Returns the name of the directory.
+ *
+ * @return string
+ */
+ public function getName() {
+ //logger(basename($this->red_path), LOGGER_DATA);
+ return (basename($this->red_path));
+ }
+
+ /**
+ * @brief Renames the directory.
+ *
+ * @todo handle duplicate directory name
+ *
+ * @throw \Sabre\DAV\Exception\Forbidden
+ * @param string $name The new name of the directory.
+ * @return void
+ */
+ public function setName($name) {
+ logger('old name ' . basename($this->red_path) . ' -> ' . $name, LOGGER_DATA);
+
+ if ((! $name) || (! $this->auth->owner_id)) {
+ logger('permission denied ' . $name);
+ throw new DAV\Exception\Forbidden('Permission denied.');
+ }
+
+ if (! perm_is_allowed($this->auth->owner_id, $this->auth->observer, 'write_storage')) {
+ logger('permission denied '. $name);
+ throw new DAV\Exception\Forbidden('Permission denied.');
+ }
+
+ list($parent_path, ) = DAV\URLUtil::splitPath($this->red_path);
+ $new_path = $parent_path . '/' . $name;
+
+ $r = q("UPDATE attach SET filename = '%s' WHERE hash = '%s' AND uid = %d",
+ dbesc($name),
+ dbesc($this->folder_hash),
+ intval($this->auth->owner_id)
+ );
+
+ $this->red_path = $new_path;
+ }
+
+ /**
+ * @brief Creates a new file in the directory.
+ *
+ * Data will either be supplied as a stream resource, or in certain cases
+ * as a string. Keep in mind that you may have to support either.
+ *
+ * After successful creation of the file, you may choose to return the ETag
+ * of the new file here.
+ *
+ * @throw \Sabre\DAV\Exception\Forbidden
+ * @param string $name Name of the file
+ * @param resource|string $data Initial payload
+ * @return null|string ETag
+ */
+ public function createFile($name, $data = null) {
+ logger($name, LOGGER_DEBUG);
+
+ if (! $this->auth->owner_id) {
+ logger('permission denied ' . $name);
+ throw new DAV\Exception\Forbidden('Permission denied.');
+ }
+
+ if (! perm_is_allowed($this->auth->owner_id, $this->auth->observer, 'write_storage')) {
+ logger('permission denied ' . $name);
+ throw new DAV\Exception\Forbidden('Permission denied.');
+ }
+
+ $mimetype = z_mime_content_type($name);
+
+ $c = q("SELECT * FROM channel WHERE channel_id = %d AND channel_removed = 0 LIMIT 1",
+ intval($this->auth->owner_id)
+ );
+
+ if (! $c) {
+ logger('no channel');
+ throw new DAV\Exception\Forbidden('Permission denied.');
+ }
+
+ $filesize = 0;
+ $hash = random_string();
+
+ $f = 'store/' . $this->auth->owner_nick . '/' . (($this->os_path) ? $this->os_path . '/' : '') . $hash;
+
+ $direct = null;
+
+ if($this->folder_hash) {
+ $r = q("select * from attach where hash = '%s' and is_dir = 1 and uid = %d limit 1",
+ dbesc($this->folder_hash),
+ intval($c[0]['channel_id'])
+ );
+ if($r)
+ $direct = $r[0];
+ }
+
+ if(($direct) && (($direct['allow_cid']) || ($direct['allow_gid']) || ($direct['deny_cid']) || ($direct['deny_gid']))) {
+ $allow_cid = $direct['allow_cid'];
+ $allow_gid = $direct['allow_gid'];
+ $deny_cid = $direct['deny_cid'];
+ $deny_gid = $direct['deny_gid'];
+ }
+ else {
+ $allow_cid = $c[0]['channel_allow_cid'];
+ $allow_gid = $c[0]['channel_allow_gid'];
+ $deny_cid = $c[0]['channel_deny_cid'];
+ $deny_gid = $c[0]['channel_deny_gid'];
+ }
+
+ $r = q("INSERT INTO attach ( aid, uid, hash, creator, filename, folder, os_storage, filetype, filesize, revision, is_photo, data, created, edited, allow_cid, allow_gid, deny_cid, deny_gid )
+ VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s' ) ",
+ intval($c[0]['channel_account_id']),
+ intval($c[0]['channel_id']),
+ dbesc($hash),
+ dbesc($this->auth->observer),
+ dbesc($name),
+ dbesc($this->folder_hash),
+ intval(1),
+ dbesc($mimetype),
+ intval($filesize),
+ intval(0),
+ intval($is_photo),
+ dbesc($f),
+ dbesc(datetime_convert()),
+ dbesc(datetime_convert()),
+ dbesc($allow_cid),
+ dbesc($allow_gid),
+ dbesc($deny_cid),
+ dbesc($deny_gid)
+ );
+
+
+
+ // returns the number of bytes that were written to the file, or FALSE on failure
+ $size = file_put_contents($f, $data);
+ // delete attach entry if file_put_contents() failed
+ if ($size === false) {
+ logger('file_put_contents() failed to ' . $f);
+ attach_delete($c[0]['channel_id'], $hash);
+ return;
+ }
+
+ // returns now
+ $edited = datetime_convert();
+
+
+
+ $is_photo = 0;
+ $x = @getimagesize($f);
+ logger('getimagesize: ' . print_r($x,true), LOGGER_DATA);
+ if(($x) && ($x[2] === IMAGETYPE_GIF || $x[2] === IMAGETYPE_JPEG || $x[2] === IMAGETYPE_PNG)) {
+ $is_photo = 1;
+ }
+
+
+ // updates entry with filesize and timestamp
+ $d = q("UPDATE attach SET filesize = '%s', is_photo = %d, edited = '%s' WHERE hash = '%s' AND uid = %d",
+ dbesc($size),
+ intval($is_photo),
+ dbesc($edited),
+ dbesc($hash),
+ intval($c[0]['channel_id'])
+ );
+
+ // update the folder's lastmodified timestamp
+ $e = q("UPDATE attach SET edited = '%s' WHERE hash = '%s' AND uid = %d",
+ dbesc($edited),
+ dbesc($this->folder_hash),
+ intval($c[0]['channel_id'])
+ );
+
+ $maxfilesize = get_config('system', 'maxfilesize');
+ if (($maxfilesize) && ($size > $maxfilesize)) {
+ attach_delete($c[0]['channel_id'], $hash);
+ return;
+ }
+
+ // check against service class quota
+ $limit = service_class_fetch($c[0]['channel_id'], 'attach_upload_limit');
+ if ($limit !== false) {
+ $x = q("SELECT SUM(filesize) AS total FROM attach WHERE aid = %d ",
+ intval($c[0]['channel_account_id'])
+ );
+ if (($x) && ($x[0]['total'] + $size > $limit)) {
+ logger('service class limit exceeded for ' . $c[0]['channel_name'] . ' total usage is ' . $x[0]['total'] . ' limit is ' . $limit);
+ attach_delete($c[0]['channel_id'], $hash);
+ return;
+ }
+ }
+
+ if($is_photo) {
+ $album = '';
+ if($this->folder_hash) {
+ $f1 = q("select filename from attach WHERE hash = '%s' AND uid = %d",
+ dbesc($this->folder_hash),
+ intval($c[0]['channel_id'])
+ );
+ if($f1)
+ $album = $f1[0]['filename'];
+ }
+
+ require_once('include/photos.php');
+ $args = array( 'resource_id' => $hash, 'album' => $album, 'os_path' => $f, 'filename' => $name, 'getimagesize' => $x, 'directory' => $direct);
+ $p = photo_upload($c[0],get_app()->get_observer(),$args);
+ }
+
+ }
+
+ /**
+ * @brief Creates a new subdirectory.
+ *
+ * @param string $name the directory to create
+ * @return void
+ */
+ public function createDirectory($name) {
+ logger($name, LOGGER_DEBUG);
+
+ if ((! $this->auth->owner_id) || (! perm_is_allowed($this->auth->owner_id, $this->auth->observer, 'write_storage'))) {
+ throw new DAV\Exception\Forbidden('Permission denied.');
+ }
+
+ $r = q("SELECT * FROM channel WHERE channel_id = %d AND channel_removed = 0 LIMIT 1",
+ intval($this->auth->owner_id)
+ );
+
+ if ($r) {
+ $result = attach_mkdir($r[0], $this->auth->observer, array('filename' => $name, 'folder' => $this->folder_hash));
+ if (! $result['success']) {
+ logger('error ' . print_r($result, true), LOGGER_DEBUG);
+ }
+ }
+ }
+
+ /**
+ * @brief delete directory
+ */
+
+ public function delete() {
+ logger('delete file ' . basename($this->red_path), LOGGER_DEBUG);
+
+ if ((! $this->auth->owner_id) || (! perm_is_allowed($this->auth->owner_id, $this->auth->observer, 'write_storage'))) {
+ throw new DAV\Exception\Forbidden('Permission denied.');
+ }
+
+ if ($this->auth->owner_id !== $this->auth->channel_id) {
+ if (($this->auth->observer !== $this->data['creator']) || intval($this->data['is_dir'])) {
+ throw new DAV\Exception\Forbidden('Permission denied.');
+ }
+ }
+
+ attach_delete($this->auth->owner_id, $this->folder_hash);
+ }
+
+
+ /**
+ * @brief Checks if a child exists.
+ *
+ * @param string $name
+ * The name to check if it exists.
+ * @return boolean
+ */
+ public function childExists($name) {
+ // On /cloud we show a list of available channels.
+ // @todo what happens if no channels are available?
+ $modulename = get_app()->module;
+ if ($this->red_path === '/' && $name === $modulename) {
+ //logger('We are at ' $modulename . ' show a channel list', LOGGER_DEBUG);
+ return true;
+ }
+
+ $x = RedFileData($this->ext_path . '/' . $name, $this->auth, true);
+ //logger('RedFileData returns: ' . print_r($x, true), LOGGER_DATA);
+ if ($x)
+ return true;
+
+ return false;
+ }
+
+ /**
+ * @todo add description of what this function does.
+ *
+ * @throw \Sabre\DAV\Exception\NotFound
+ * @return void
+ */
+ function getDir() {
+
+ logger('GetDir: ' . $this->ext_path, LOGGER_DEBUG);
+ $this->auth->log();
+ $modulename = get_app()->module;
+
+ $file = $this->ext_path;
+
+ $x = strpos($file, '/' . $modulename);
+ if ($x === 0) {
+ $file = substr($file, strlen($modulename) + 1);
+ }
+
+ if ((! $file) || ($file === '/')) {
+ return;
+ }
+
+ $file = trim($file, '/');
+ $path_arr = explode('/', $file);
+
+ if (! $path_arr)
+ return;
+
+ logger('paths: ' . print_r($path_arr, true), LOGGER_DATA);
+
+ $channel_name = $path_arr[0];
+
+ $r = q("SELECT channel_id FROM channel WHERE channel_address = '%s' AND channel_removed = 0 LIMIT 1",
+ dbesc($channel_name)
+ );
+
+ if (! $r) {
+ throw new DAV\Exception\NotFound('The file with name: ' . $channel_name . ' could not be found.');
+ }
+
+ $channel_id = $r[0]['channel_id'];
+ $this->auth->owner_id = $channel_id;
+ $this->auth->owner_nick = $channel_name;
+
+ $path = '/' . $channel_name;
+ $folder = '';
+ $os_path = '';
+
+ for ($x = 1; $x < count($path_arr); $x++) {
+ $r = q("select id, hash, filename, flags, is_dir from attach where folder = '%s' and filename = '%s' and uid = %d and is_dir != 0",
+ dbesc($folder),
+ dbesc($path_arr[$x]),
+ intval($channel_id)
+ );
+ if ($r && intval($r[0]['is_dir'])) {
+ $folder = $r[0]['hash'];
+ if (strlen($os_path))
+ $os_path .= '/';
+ $os_path .= $folder;
+
+ $path = $path . '/' . $r[0]['filename'];
+ }
+ }
+ $this->folder_hash = $folder;
+ $this->os_path = $os_path;
+ }
+
+ /**
+ * @brief Returns the last modification time for the directory, as a UNIX
+ * timestamp.
+ *
+ * It looks for the last edited file in the folder. If it is an empty folder
+ * it returns the lastmodified time of the folder itself, to prevent zero
+ * timestamps.
+ *
+ * @return int last modification time in UNIX timestamp
+ */
+ public function getLastModified() {
+ $r = q("SELECT edited FROM attach WHERE folder = '%s' AND uid = %d ORDER BY edited DESC LIMIT 1",
+ dbesc($this->folder_hash),
+ intval($this->auth->owner_id)
+ );
+ if (! $r) {
+ $r = q("SELECT edited FROM attach WHERE hash = '%s' AND uid = %d LIMIT 1",
+ dbesc($this->folder_hash),
+ intval($this->auth->owner_id)
+ );
+ if (! $r)
+ return '';
+ }
+ return datetime_convert('UTC', 'UTC', $r[0]['edited'], 'U');
+ }
+
+ /**
+ * @brief Return quota usage.
+ *
+ * @fixme Should guests relly see the used/free values from filesystem of the
+ * complete store directory?
+ *
+ * @return array with used and free values in bytes.
+ */
+ public function getQuotaInfo() {
+ // values from the filesystem of the complete <i>store/</i> directory
+ $limit = disk_total_space('store');
+ $free = disk_free_space('store');
+
+ if ($this->auth->owner_id) {
+ $c = q("select * from channel where channel_id = %d and channel_removed = 0 limit 1",
+ intval($this->auth->owner_id)
+ );
+
+ $ulimit = service_class_fetch($c[0]['channel_id'], 'attach_upload_limit');
+ $limit = (($ulimit) ? $ulimit : $limit);
+
+ $x = q("select sum(filesize) as total from attach where aid = %d",
+ intval($c[0]['channel_account_id'])
+ );
+ $free = (($x) ? $limit - $x[0]['total'] : 0);
+ }
+
+ return array(
+ $limit - $free,
+ $free
+ );
+ }
+} \ No newline at end of file
diff --git a/Zotlabs/Storage/File.php b/Zotlabs/Storage/File.php
new file mode 100644
index 000000000..2a2a8b938
--- /dev/null
+++ b/Zotlabs/Storage/File.php
@@ -0,0 +1,322 @@
+<?php
+
+namespace Zotlabs\Storage;
+
+use Sabre\DAV;
+
+/**
+ * @brief This class represents a file in DAV.
+ *
+ * It provides all functions to work with files in Red's cloud through DAV protocol.
+ *
+ * @extends \Sabre\DAV\Node
+ * @implements \Sabre\DAV\IFile
+ *
+ * @link http://github.com/friendica/red
+ * @license http://opensource.org/licenses/mit-license.php The MIT License (MIT)
+ */
+class File extends DAV\Node implements DAV\IFile {
+
+ /**
+ * The file from attach table.
+ *
+ * @var array
+ * data
+ * flags
+ * filename (string)
+ * filetype (string)
+ */
+ private $data;
+ /**
+ * @see \Sabre\DAV\Auth\Backend\BackendInterface
+ * @var \RedMatrix\RedDAV\RedBasicAuth
+ */
+ private $auth;
+ /**
+ * @var string
+ */
+ private $name;
+
+ /**
+ * Sets up the node, expects a full path name.
+ *
+ * @param string $name
+ * @param array $data from attach table
+ * @param &$auth
+ */
+ public function __construct($name, $data, &$auth) {
+ $this->name = $name;
+ $this->data = $data;
+ $this->auth = $auth;
+
+ logger(print_r($this->data, true), LOGGER_DATA);
+ }
+
+ /**
+ * @brief Returns the name of the file.
+ *
+ * @return string
+ */
+ public function getName() {
+ //logger(basename($this->name), LOGGER_DATA);
+ return basename($this->name);
+ }
+
+ /**
+ * @brief Renames the file.
+ *
+ * @throw Sabre\DAV\Exception\Forbidden
+ * @param string $name The new name of the file.
+ * @return void
+ */
+ public function setName($newName) {
+ logger('old name ' . basename($this->name) . ' -> ' . $newName, LOGGER_DATA);
+
+ if ((! $newName) || (! $this->auth->owner_id) || (! perm_is_allowed($this->auth->owner_id, $this->auth->observer, 'write_storage'))) {
+ logger('permission denied '. $newName);
+ throw new DAV\Exception\Forbidden('Permission denied.');
+ }
+
+ $newName = str_replace('/', '%2F', $newName);
+
+ $r = q("UPDATE attach SET filename = '%s' WHERE hash = '%s' AND id = %d",
+ dbesc($newName),
+ dbesc($this->data['hash']),
+ intval($this->data['id'])
+ );
+ }
+
+ /**
+ * @brief Updates the data of the file.
+ *
+ * @param resource $data
+ * @return void
+ */
+ public function put($data) {
+ logger('put file: ' . basename($this->name), LOGGER_DEBUG);
+ $size = 0;
+
+ // @todo only 3 values are needed
+ $c = q("SELECT * FROM channel WHERE channel_id = %d AND channel_removed = 0 LIMIT 1",
+ intval($this->auth->owner_id)
+ );
+
+ $is_photo = false;
+ $album = '';
+
+ $r = q("SELECT flags, folder, os_storage, filename, is_photo FROM attach WHERE hash = '%s' AND uid = %d LIMIT 1",
+ dbesc($this->data['hash']),
+ intval($c[0]['channel_id'])
+ );
+ if ($r) {
+ if (intval($r[0]['os_storage'])) {
+ $d = q("select folder, data from attach where hash = '%s' and uid = %d limit 1",
+ dbesc($this->data['hash']),
+ intval($c[0]['channel_id'])
+ );
+ if($d) {
+ if($d[0]['folder']) {
+ $f1 = q("select * from attach where is_dir = 1 and hash = '%s' and uid = %d limit 1",
+ dbesc($d[0]['folder']),
+ intval($c[0]['channel_id'])
+ );
+ if($f1) {
+ $album = $f1[0]['filename'];
+ $direct = $f1[0];
+ }
+ }
+ $fname = dbunescbin($d[0]['data']);
+ if(strpos($fname,'store') === false)
+ $f = 'store/' . $this->auth->owner_nick . '/' . $fname ;
+ else
+ $f = $fname;
+
+ // @todo check return value and set $size directly
+ @file_put_contents($f, $data);
+ $size = @filesize($f);
+ logger('filename: ' . $f . ' size: ' . $size, LOGGER_DEBUG);
+ }
+ $gis = @getimagesize($f);
+ logger('getimagesize: ' . print_r($gis,true), LOGGER_DATA);
+ if(($gis) && ($gis[2] === IMAGETYPE_GIF || $gis[2] === IMAGETYPE_JPEG || $gis[2] === IMAGETYPE_PNG)) {
+ $is_photo = 1;
+ }
+ }
+ else {
+ // this shouldn't happen any more
+ $r = q("UPDATE attach SET data = '%s' WHERE hash = '%s' AND uid = %d",
+ dbescbin(stream_get_contents($data)),
+ dbesc($this->data['hash']),
+ intval($this->data['uid'])
+ );
+ $r = q("SELECT length(data) AS fsize FROM attach WHERE hash = '%s' AND uid = %d LIMIT 1",
+ dbesc($this->data['hash']),
+ intval($this->data['uid'])
+ );
+ if ($r) {
+ $size = $r[0]['fsize'];
+ }
+ }
+ }
+
+ // returns now()
+ $edited = datetime_convert();
+
+ $d = q("UPDATE attach SET filesize = '%s', is_photo = %d, edited = '%s' WHERE hash = '%s' AND uid = %d",
+ dbesc($size),
+ intval($is_photo),
+ dbesc($edited),
+ dbesc($this->data['hash']),
+ intval($c[0]['channel_id'])
+ );
+
+ if($is_photo) {
+ require_once('include/photos.php');
+ $args = array( 'resource_id' => $this->data['hash'], 'album' => $album, 'os_path' => $f, 'filename' => $r[0]['filename'], 'getimagesize' => $gis, 'directory' => $direct );
+ $p = photo_upload($c[0],get_app()->get_observer(),$args);
+ }
+
+ // update the folder's lastmodified timestamp
+ $e = q("UPDATE attach SET edited = '%s' WHERE hash = '%s' AND uid = %d",
+ dbesc($edited),
+ dbesc($r[0]['folder']),
+ intval($c[0]['channel_id'])
+ );
+
+ // @todo do we really want to remove the whole file if an update fails
+ // because of maxfilesize or quota?
+ // There is an Exception "InsufficientStorage" or "PaymentRequired" for
+ // our service class from SabreDAV we could use.
+
+ $maxfilesize = get_config('system', 'maxfilesize');
+ if (($maxfilesize) && ($size > $maxfilesize)) {
+ attach_delete($c[0]['channel_id'], $this->data['hash']);
+ return;
+ }
+
+ $limit = service_class_fetch($c[0]['channel_id'], 'attach_upload_limit');
+ if ($limit !== false) {
+ $x = q("select sum(filesize) as total from attach where aid = %d ",
+ intval($c[0]['channel_account_id'])
+ );
+ if (($x) && ($x[0]['total'] + $size > $limit)) {
+ logger('service class limit exceeded for ' . $c[0]['channel_name'] . ' total usage is ' . $x[0]['total'] . ' limit is ' . $limit);
+ attach_delete($c[0]['channel_id'], $this->data['hash']);
+ return;
+ }
+ }
+ }
+
+ /**
+ * @brief Returns the raw data.
+ *
+ * @return string
+ */
+ public function get() {
+ logger('get file ' . basename($this->name), LOGGER_DEBUG);
+ logger('os_path: ' . $this->os_path, LOGGER_DATA);
+
+ $r = q("SELECT data, flags, os_storage, filename, filetype FROM attach WHERE hash = '%s' AND uid = %d LIMIT 1",
+ dbesc($this->data['hash']),
+ intval($this->data['uid'])
+ );
+ if ($r) {
+ // @todo this should be a global definition
+ $unsafe_types = array('text/html', 'text/css', 'application/javascript');
+
+ if (in_array($r[0]['filetype'], $unsafe_types)) {
+ header('Content-disposition: attachment; filename="' . $r[0]['filename'] . '"');
+ header('Content-type: text/plain');
+ }
+
+ if (intval($r[0]['os_storage'])) {
+ $x = dbunescbin($r[0]['data']);
+ if(strpos($x,'store') === false)
+ $f = 'store/' . $this->auth->owner_nick . '/' . (($this->os_path) ? $this->os_path . '/' : '') . $x;
+ else
+ $f = $x;
+ return fopen($f, 'rb');
+ }
+ return dbunescbin($r[0]['data']);
+ }
+ }
+
+ /**
+ * @brief Returns the ETag for a file.
+ *
+ * An ETag is a unique identifier representing the current version of the file.
+ * If the file changes, the ETag MUST change.
+ * The ETag is an arbitrary string, but MUST be surrounded by double-quotes.
+ *
+ * Return null if the ETag can not effectively be determined.
+ *
+ * @return null|string
+ */
+ public function getETag() {
+ $ret = null;
+ if ($this->data['hash']) {
+ $ret = '"' . $this->data['hash'] . '"';
+ }
+ return $ret;
+ }
+
+ /**
+ * @brief Returns the mime-type for a file.
+ *
+ * If null is returned, we'll assume application/octet-stream
+ *
+ * @return mixed
+ */
+ public function getContentType() {
+ // @todo this should be a global definition.
+ $unsafe_types = array('text/html', 'text/css', 'application/javascript');
+ if (in_array($this->data['filetype'], $unsafe_types)) {
+ return 'text/plain';
+ }
+ return $this->data['filetype'];
+ }
+
+ /**
+ * @brief Returns the size of the node, in bytes.
+ *
+ * @return int
+ * filesize in bytes
+ */
+ public function getSize() {
+ return $this->data['filesize'];
+ }
+
+ /**
+ * @brief Returns the last modification time for the file, as a unix
+ * timestamp.
+ *
+ * @return int last modification time in UNIX timestamp
+ */
+ public function getLastModified() {
+ return datetime_convert('UTC', 'UTC', $this->data['edited'], 'U');
+ }
+
+ /**
+ * @brief Delete the file.
+ *
+ * This method checks the permissions and then calls attach_delete() function
+ * to actually remove the file.
+ *
+ * @throw \Sabre\DAV\Exception\Forbidden
+ */
+ public function delete() {
+ logger('delete file ' . basename($this->name), LOGGER_DEBUG);
+
+ if ((! $this->auth->owner_id) || (! perm_is_allowed($this->auth->owner_id, $this->auth->observer, 'write_storage'))) {
+ throw new DAV\Exception\Forbidden('Permission denied.');
+ }
+
+ if ($this->auth->owner_id !== $this->auth->channel_id) {
+ if (($this->auth->observer !== $this->data['creator']) || intval($this->data['is_dir'])) {
+ throw new DAV\Exception\Forbidden('Permission denied.');
+ }
+ }
+
+ attach_delete($this->auth->owner_id, $this->data['hash']);
+ }
+}