375 lines
11 KiB
PHP
375 lines
11 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 Provides a DAV frontend for the webbrowser.
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*
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* RedBrowser is a SabreDAV server-plugin to provide a view to the DAV storage
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* for the webbrowser.
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*
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* @extends \Sabre\DAV\Browser\Plugin
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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 RedBrowser extends DAV\Browser\Plugin {
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/**
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* @see set_writeable()
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* @see \Sabre\DAV\Auth\Backend\BackendInterface
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* @var RedBasicAuth
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*/
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private $auth;
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/**
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* @brief Constructor for RedBrowser class.
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*
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* $enablePost will be activated through set_writeable() in a later stage.
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* At the moment the write_storage permission is only valid for the whole
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* folder. No file specific permissions yet.
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* @todo disable enablePost by default and only activate if permissions
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* grant edit rights.
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*
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* Disable assets with $enableAssets = false. Should get some thumbnail views
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* anyway.
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*
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* @param RedBasicAuth &$auth
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*/
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public function __construct(&$auth) {
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$this->auth = $auth;
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parent::__construct(true, false);
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}
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/**
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* The DAV browser is instantiated after the auth module and directory classes
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* but before we know the current directory and who the owner and observer
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* are. So we add a pointer to the browser into the auth module and vice versa.
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* Then when we've figured out what directory is actually being accessed, we
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* call the following function to decide whether or not to show web elements
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* which include writeable objects.
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*
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* @fixme It only disable/enable the visible parts. Not the POST handler
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* which handels the actual requests when uploading files or creating folders.
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*
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* @todo Maybe this whole way of doing this can be solved with some
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* $server->subscribeEvent().
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*/
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public function set_writeable() {
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if (! $this->auth->owner_id) {
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$this->enablePost = false;
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}
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if (! perm_is_allowed($this->auth->owner_id, get_observer_hash(), 'write_storage')) {
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$this->enablePost = false;
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} else {
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$this->enablePost = true;
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}
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}
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/**
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* @brief Creates the directory listing for the given path.
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*
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* @param string $path which should be displayed
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*/
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public function generateDirectoryIndex($path) {
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// (owner_id = channel_id) is visitor owner of this directory?
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$is_owner = ((local_channel() && $this->auth->owner_id == local_channel()) ? true : false);
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if ($this->auth->getTimezone())
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date_default_timezone_set($this->auth->getTimezone());
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require_once('include/conversation.php');
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require_once('include/text.php');
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if ($this->auth->owner_nick) {
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$html = profile_tabs(get_app(), (($is_owner) ? true : false), $this->auth->owner_nick);
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}
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$files = $this->server->getPropertiesForPath($path, array(
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'{DAV:}displayname',
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'{DAV:}resourcetype',
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'{DAV:}getcontenttype',
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'{DAV:}getcontentlength',
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'{DAV:}getlastmodified',
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), 1);
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$parent = $this->server->tree->getNodeForPath($path);
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$parentpath = array();
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// only show parent if not leaving /cloud/; TODO how to improve this?
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if ($path && $path != "cloud") {
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list($parentUri) = DAV\URLUtil::splitPath($path);
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$fullPath = DAV\URLUtil::encodePath($this->server->getBaseUri() . $parentUri);
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$parentpath['icon'] = $this->enableAssets ? '<a href="' . $fullPath . '"><img src="' . $this->getAssetUrl('icons/parent' . $this->iconExtension) . '" width="24" alt="' . t('parent') . '"></a>' : '';
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$parentpath['path'] = $fullPath;
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}
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$f = array();
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foreach ($files as $file) {
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$ft = array();
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$type = null;
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// This is the current directory, we can skip it
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if (rtrim($file['href'],'/') == $path) continue;
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list(, $name) = DAV\URLUtil::splitPath($file['href']);
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if (isset($file[200]['{DAV:}resourcetype'])) {
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$type = $file[200]['{DAV:}resourcetype']->getValue();
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// resourcetype can have multiple values
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if (!is_array($type)) $type = array($type);
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foreach ($type as $k=>$v) {
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// Some name mapping is preferred
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switch ($v) {
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case '{DAV:}collection' :
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$type[$k] = t('Collection');
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break;
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case '{DAV:}principal' :
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$type[$k] = t('Principal');
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break;
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case '{urn:ietf:params:xml:ns:carddav}addressbook' :
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$type[$k] = t('Addressbook');
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break;
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case '{urn:ietf:params:xml:ns:caldav}calendar' :
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$type[$k] = t('Calendar');
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break;
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case '{urn:ietf:params:xml:ns:caldav}schedule-inbox' :
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$type[$k] = t('Schedule Inbox');
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break;
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case '{urn:ietf:params:xml:ns:caldav}schedule-outbox' :
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$type[$k] = t('Schedule Outbox');
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break;
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case '{http://calendarserver.org/ns/}calendar-proxy-read' :
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$type[$k] = 'Proxy-Read';
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break;
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case '{http://calendarserver.org/ns/}calendar-proxy-write' :
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$type[$k] = 'Proxy-Write';
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break;
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}
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}
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$type = implode(', ', $type);
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}
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// If no resourcetype was found, we attempt to use
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// the contenttype property
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if (!$type && isset($file[200]['{DAV:}getcontenttype'])) {
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$type = $file[200]['{DAV:}getcontenttype'];
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}
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if (!$type) $type = t('Unknown');
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$size = isset($file[200]['{DAV:}getcontentlength']) ? (int)$file[200]['{DAV:}getcontentlength'] : '';
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$lastmodified = ((isset($file[200]['{DAV:}getlastmodified'])) ? $file[200]['{DAV:}getlastmodified']->getTime()->format('Y-m-d H:i:s') : '');
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$fullPath = DAV\URLUtil::encodePath('/' . trim($this->server->getBaseUri() . ($path ? $path . '/' : '') . $name, '/'));
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$displayName = isset($file[200]['{DAV:}displayname']) ? $file[200]['{DAV:}displayname'] : $name;
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$displayName = $this->escapeHTML($displayName);
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$type = $this->escapeHTML($type);
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$icon = '';
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if ($this->enableAssets) {
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$node = $this->server->tree->getNodeForPath(($path ? $path . '/' : '') . $name);
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foreach (array_reverse($this->iconMap) as $class=>$iconName) {
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if ($node instanceof $class) {
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$icon = '<a href="' . $fullPath . '"><img src="' . $this->getAssetUrl($iconName . $this->iconExtension) . '" alt="" width="24"></a>';
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break;
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}
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}
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}
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$parentHash = '';
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$owner = $this->auth->owner_id;
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$splitPath = split('/', $fullPath);
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if (count($splitPath) > 3) {
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for ($i = 3; $i < count($splitPath); $i++) {
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$attachName = urldecode($splitPath[$i]);
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$attachHash = $this->findAttachHash($owner, $parentHash, $attachName);
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$parentHash = $attachHash;
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}
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}
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$attachIcon = ""; // "<a href=\"attach/".$attachHash."\" title=\"".$displayName."\"><i class=\"icon-download\"></i></a>";
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// put the array for this file together
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$ft['attachId'] = $this->findAttachIdByHash($attachHash);
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$ft['fileStorageUrl'] = substr($fullPath, 0, strpos($fullPath, "cloud/")) . "filestorage/" . $this->auth->getCurrentUser();
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$ft['icon'] = $icon;
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$ft['attachIcon'] = (($size) ? $attachIcon : '');
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// @todo Should this be an item value, not a global one?
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$ft['is_owner'] = $is_owner;
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$ft['fullPath'] = $fullPath;
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$ft['displayName'] = $displayName;
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$ft['type'] = $type;
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$ft['size'] = $size;
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$ft['sizeFormatted'] = userReadableSize($size);
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$ft['lastmodified'] = (($lastmodified) ? datetime_convert('UTC', date_default_timezone_get(), $lastmodified) : '');
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$ft['iconFromType'] = getIconFromType($type);
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$f[] = $ft;
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}
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// Storage and quota for the account (all channels of the owner of this directory)!
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$limit = service_class_fetch($owner, 'attach_upload_limit');
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$r = q("SELECT SUM(filesize) AS total FROM attach WHERE aid = %d",
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intval($this->auth->channel_account_id)
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);
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$used = $r[0]['total'];
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if ($used) {
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$quotaDesc = t('%1$s used');
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$quotaDesc = sprintf($quotaDesc,
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userReadableSize($used));
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}
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if ($limit && $used) {
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$quotaDesc = t('%1$s used of %2$s (%3$s%)');
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$quotaDesc = sprintf($quotaDesc,
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userReadableSize($used),
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userReadableSize($limit),
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round($used / $limit, 1));
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}
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// prepare quota for template
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$quota = array();
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$quota['used'] = $used;
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$quota['limit'] = $limit;
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$quota['desc'] = $quotaDesc;
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$output = '';
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if ($this->enablePost) {
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$this->server->broadcastEvent('onHTMLActionsPanel', array($parent, &$output));
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}
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$html .= replace_macros(get_markup_template('cloud_header.tpl'), array(
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'$header' => t('Files') . ": " . $this->escapeHTML($path) . "/",
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'$quota' => $quota,
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'$total' => t('Total'),
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'$actionspanel' => $output,
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'$shared' => t('Shared'),
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'$create' => t('Create'),
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'$upload' => t('Upload'),
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'$is_owner' => $is_owner
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));
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$html .= replace_macros(get_markup_template('cloud_directory.tpl'), array(
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'$parentpath' => $parentpath,
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'$entries' => $f,
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'$name' => t('Name'),
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'$type' => t('Type'),
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'$size' => t('Size'),
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'$lastmod' => t('Last Modified'),
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'$parent' => t('parent'),
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'$edit' => t('Edit'),
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'$delete' => t('Delete'),
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'$nick' => $this->auth->getCurrentUser()
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));
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$a = get_app();
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$a->page['content'] = $html;
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load_pdl($a);
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$theme_info_file = "view/theme/" . current_theme() . "/php/theme.php";
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if (file_exists($theme_info_file)){
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require_once($theme_info_file);
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if (function_exists(str_replace('-', '_', current_theme()) . '_init')) {
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$func = str_replace('-', '_', current_theme()) . '_init';
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$func($a);
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}
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}
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construct_page($a);
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}
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/**
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* @brief Creates a form to add new folders and upload files.
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*
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* @param \Sabre\DAV\INode $node
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* @param string &$output
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*/
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public function htmlActionsPanel(DAV\INode $node, &$output) {
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if (! $node instanceof DAV\ICollection)
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return;
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// We also know fairly certain that if an object is a non-extended
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// SimpleCollection, we won't need to show the panel either.
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if (get_class($node) === 'Sabre\\DAV\\SimpleCollection')
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return;
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$output .= replace_macros(get_markup_template('cloud_actionspanel.tpl'), array(
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'$folder_header' => t('Create new folder'),
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'$folder_submit' => t('Create'),
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'$upload_header' => t('Upload file'),
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'$upload_submit' => t('Upload')
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));
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}
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/**
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* This method takes a path/name of an asset and turns it into url
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* suiteable for http access.
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*
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* @param string $assetName
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* @return string
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*/
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protected function getAssetUrl($assetName) {
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return z_root() . '/cloud/?sabreAction=asset&assetName=' . urlencode($assetName);
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}
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/**
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* @brief Return the hash of an attachment.
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*
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* Given the owner, the parent folder and and attach name get the attachment
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* hash.
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*
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* @param int $owner
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* The owner_id
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* @param string $hash
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* The parent's folder hash
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* @param string $attachName
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* The name of the attachment
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* @return string
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*/
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protected function findAttachHash($owner, $parentHash, $attachName) {
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$r = q("SELECT hash FROM attach WHERE uid = %d AND folder = '%s' AND filename = '%s' ORDER BY edited DESC LIMIT 1",
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intval($owner),
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dbesc($parentHash),
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dbesc($attachName)
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);
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$hash = "";
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if ($r) {
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foreach ($r as $rr) {
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$hash = $rr['hash'];
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}
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}
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return $hash;
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}
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/**
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* @brief Returns an attachment's id for a given hash.
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*
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* This id is used to access the attachment in filestorage/
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*
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* @param string $attachHash
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* The hash of an attachment
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* @return string
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*/
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protected function findAttachIdByHash($attachHash) {
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$r = q("SELECT id FROM attach WHERE hash = '%s' ORDER BY edited DESC LIMIT 1",
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dbesc($attachHash)
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);
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$id = "";
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if ($r) {
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foreach ($r as $rr) {
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$id = $rr['id'];
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}
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}
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return $id;
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}
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}
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