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-rw-r--r--include/RedDAV/RedBrowser.php361
1 files changed, 361 insertions, 0 deletions
diff --git a/include/RedDAV/RedBrowser.php b/include/RedDAV/RedBrowser.php
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+<?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
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-01 10:40:15 +0000