Merge pull request #620 from dawnbreak/RedDAV

Moved RedBrowser class from reddav.php to it's own file.

2 files changed, 366 insertions, 324 deletions

diff --git a/include/RedDAV/RedBrowser.php b/include/RedDAV/RedBrowser.php
new file mode 100644
index 000000000..dcd54ef82
--- /dev/null
+++ b/include/RedDAV/RedBrowser.php
@@ -0,0 +1,361 @@
+<?php
+/**
+ * RedMatrix - "The Network"
+ *
+ * @link http://github.com/friendica/red
+ * @license http://opensource.org/licenses/mit-license.php The MIT License (MIT)
+ */
+
+namespace RedMatrix\RedDAV;
+
+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
+ */
+class RedBrowser 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.
+	 *
+	 * Disable assets with $enableAssets = false. Should get some thumbnail views
+	 * anyway.
+	 *
+	 * @param RedBasicAuth &$auth
+	 */
+	public function __construct(&$auth) {
+		$this->auth = $auth;
+		parent::__construct(false, 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.
+	 *
+	 * @todo Maybe 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_user() && $this->auth->owner_id == local_user()) ? true : false);
+
+		if ($this->auth->getTimezone())
+			date_default_timezone_set($this->auth->getTimezone());
+
+		require_once('include/conversation.php');
+
+		if ($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 = split("/", $fullPath);
+			if (count($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'] = $this->userReadableSize($size);
+			$ft['lastmodified'] = (($lastmodified) ? datetime_convert('UTC', date_default_timezone_get(), $lastmodified) : '');
+
+			$f[] = $ft;
+		}
+
+		// 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) {
+			$quotaDesc = t('%1$s used');
+			$quotaDesc = sprintf($quotaDesc,
+				$this->userReadableSize($used));
+		}
+		if ($limit && $used) {
+			$quotaDesc = t('%1$s used of %2$s (%3$s&#37;)');
+			$quotaDesc = sprintf($quotaDesc,
+				$this->userReadableSize($used),
+				$this->userReadableSize($limit),
+				round($used / $limit, 1));
+		}
+
+		// prepare quota for template
+		$quota['used'] = $used;
+		$quota['limit'] = $limit;
+		$quota['desc'] = $quotaDesc;
+
+		$html .= replace_macros(get_markup_template('cloud_directory.tpl'), array(
+				'$header' => t('Files') . ": " . $this->escapeHTML($path) . "/",
+				'$parentpath' => $parentpath,
+				'$entries' => $f,
+				'$quota' => $quota,
+				'$name' => t('Name'),
+				'$type' => t('Type'),
+				'$size' => t('Size'),
+				'$lastmod' => t('Last Modified'),
+				'$parent' => t('parent'),
+				'$edit' => t('Edit'),
+				'$delete' => t('Delete'),
+				'$total' => t('Total')		
+			));
+
+		$output = '';
+		if ($this->enablePost) {
+			$this->server->broadcastEvent('onHTMLActionsPanel', array($parent, &$output));
+		}
+		$html .= $output;
+	
+		get_app()->page['content'] = $html;
+		construct_page(get_app());
+	}
+
+	function userReadableSize($size) {
+		$ret = "";
+		if (is_numeric($size)) {
+			$incr = 0;
+			$k = 1024;
+			$unit = array('bytes', 'KB', 'MB', 'GB', 'TB', 'PB');
+			while (($size / $k) >= 1){
+				$incr++;
+				$size = round($size / $k, 2);
+			}
+			$ret = $size . " " . $unit[$incr];
+		}
+		return $ret;
+	}
+
+	/**
+	 * @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;
+
+		$output .= replace_macros(get_markup_template('cloud_actionspanel.tpl'), array(
+				'$folder_header' => t('Create new folder'),
+				'$folder_submit' => t('Create'),
+				'$upload_header' => t('Upload file'),
+				'$upload_submit' => t('Upload')
+			));
+	}
+
+	/**
+	 * 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;
+	}
+}
\ No newline at end of file
diff --git a/include/reddav.php b/include/reddav.php
index 3de24661e..5c93daf1f 100644
--- a/include/reddav.php
+++ b/include/reddav.php
@@ -14,14 +14,18 @@
  */
 
 use Sabre\DAV;
+
 require_once('vendor/autoload.php');
 require_once('include/attach.php');
 
-
 /**
  * @brief RedDirectory class.
  *
  * A class that represents a directory.
+ *
+ * @extends \Sabre\DAV\Node
+ * @implements \Sabre\DAV\ICollection
+ * @implements \Sabre\DAV\IQuota
  */
 class RedDirectory extends DAV\Node implements DAV\ICollection, DAV\IQuota {
 
@@ -1176,326 +1180,3 @@ class RedBasicAuth extends DAV\Auth\Backend\AbstractBasic {
 	}
 
 } // class RedBasicAuth
-
-
-
-/**
- * @brief RedBrowser class.
- *
- * RedBrowser is a SabreDAV server-plugin to provide a view to the DAV in
- * the browser
- */
-class RedBrowser extends DAV\Browser\Plugin {
-
-	/**
-	 * @var RedBasicAuth
-	 */
-	private $auth;
-
-	/**
-	 * @brief Constructor for RedBrowser.
-	 *
-	 * @param RedBasicAuth &$auth
-	 */
-	function __construct(&$auth) {
-		$this->auth = $auth;
-		$this->enableAssets = 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.
-	// @todo Maybe this can be solved with some $server->subscribeEvent()?
-	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_user() && $this->auth->owner_id == local_user()) ? true : false);
-
-		if ($this->auth->getTimezone())
-			date_default_timezone_set($this->auth->getTimezone());
-
-		require_once('include/conversation.php');
-
-		if ($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 = split("/", $fullPath);
-			if (count($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'] = $this->userReadableSize($size);
-			$ft['lastmodified'] = (($lastmodified) ? datetime_convert('UTC', date_default_timezone_get(), $lastmodified) : '');
-
-			$f[] = $ft;
-		}
-
-		// 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) {
-			$quotaDesc = t('%1$s used');
-			$quotaDesc = sprintf($quotaDesc,
-				$this->userReadableSize($used));
-		}
-		if ($limit && $used) {
-			$quotaDesc = t('%1$s used of %2$s (%3$s&#37;)');
-			$quotaDesc = sprintf($quotaDesc,
-				$this->userReadableSize($used),
-				$this->userReadableSize($limit),
-				round($used / $limit, 1));
-		}
-
-		// prepare quota for template
-		$quota['used'] = $used;
-		$quota['limit'] = $limit;
-		$quota['desc'] = $quotaDesc;
-
-		$html .= replace_macros(get_markup_template('cloud_directory.tpl'), array(
-				'$header' => t('Files') . ": " . $this->escapeHTML($path) . "/",
-				'$parentpath' => $parentpath,
-				'$entries' => $f,
-				'$quota' => $quota,
-				'$name' => t('Name'),
-				'$type' => t('Type'),
-				'$size' => t('Size'),
-				'$lastmod' => t('Last Modified'),
-				'$parent' => t('parent'),
-				'$edit' => t('Edit'),
-				'$delete' => t('Delete'),
-				'$total' => t('Total')		
-			));
-
-		$output = '';
-		if ($this->enablePost) {
-			$this->server->broadcastEvent('onHTMLActionsPanel', array($parent, &$output));
-		}
-		$html .= $output;
-	
-		get_app()->page['content'] = $html;
-		construct_page(get_app());
-	}
-
-	function userReadableSize($size) {
-		$ret = "";
-		if (is_numeric($size)) {
-			$incr = 0;
-			$k = 1024;
-			$unit = array('bytes', 'KB', 'MB', 'GB', 'TB', 'PB');
-			while (($size / $k) >= 1){
-				$incr++;
-				$size = round($size / $k, 2);
-			}
-			$ret = $size . " " . $unit[$incr];
-		}
-		return $ret;
-	}
-
-	/**
-	 * Creates a form to add new folders and upload files.
-	 *
-	 * @param DAV\INode $node
-	 * @param string &$output
-	 */
-	public function htmlActionsPanel(DAV\INode $node, &$output) {
-
-	//Removed link to filestorage page
-	//if($this->auth->owner_id && $this->auth->owner_id == $this->auth->channel_id) {
-	//		$channel = get_app()->get_channel();
-	//	if($channel) {
-	//		$output .= '<tr><td colspan="2"><a href="filestorage/' . $channel['channel_address'] . '" >' . t('Edit File properties') . '</a></td></tr><tr><td>&nbsp;</td></tr>';
-	//	}
-	//}
-
-		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;
-
-		$output .= replace_macros(get_markup_template('cloud_actionspanel.tpl'), array(
-				'$folder_header' => t('Create new folder'),
-				'$folder_submit' => t('Create'),
-				'$upload_header' => t('Upload file'),
-				'$upload_submit' => t('Upload')
-			));
-	}
-
-	/**
-	 * 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($assetName);
-	}
-
-	protected function findAttachHash($owner, $parentHash, $attachName) {
-		$r = q("SELECT * FROM attach WHERE uid = %d AND folder = '%s' AND filename = '%s' ORDER BY edited desc LIMIT 1",
-			intval($owner),
-			dbesc($parentHash),
-			dbesc($attachName)
-		);
-		$hash = "";
-		if ($r) {
-			foreach ($r as $rr) {
-				$hash = $rr['hash'];
-			}
-		}
-		return $hash;
-	}
-
-	protected function findAttachIdByHash($attachHash) {
-		$r = q("SELECT * FROM attach WHERE hash = '%s' ORDER BY edited DESC LIMIT 1",
-			dbesc($attachHash)
-		);
-		$id = "";
-		if ($r) {
-			foreach ($r as $rr) {
-				$id = $rr['id'];
-			}
-		}
-		return $id;
-	}
-
-} // class RedBrowser