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-rw-r--r--include/RedDAV/RedBasicAuth.php209
-rw-r--r--include/RedDAV/RedBrowser.php26
-rw-r--r--include/RedDAV/RedDirectory.php462
-rw-r--r--include/RedDAV/RedFile.php279
4 files changed, 969 insertions, 7 deletions
diff --git a/include/RedDAV/RedBasicAuth.php b/include/RedDAV/RedBasicAuth.php
new file mode 100644
index 000000000..2f86d4f82
--- /dev/null
+++ b/include/RedDAV/RedBasicAuth.php
@@ -0,0 +1,209 @@
+<?php
+
+namespace RedMatrix\RedDAV;
+
+use Sabre\DAV;
+
+/**
+ * @brief Authentication backend class for RedDAV.
+ *
+ * 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 RedBasicAuth 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 RedBrowser::set_writeable()
+ * @var \Sabre\DAV\Browser\Plugin
+ */
+ public $browser;
+ /**
+ * channel_id of the current visited path. Set in RedDirectory::getDir().
+ *
+ * @var int
+ */
+ public $owner_id = 0;
+ /**
+ * channel_name of the current visited path. Set in RedDirectory::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]);
+ }
+ }
+ }
+ }
+ logger('password failed for ' . $username);
+ // @TODO add security logger
+ 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 RedBasicAuth 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/include/RedDAV/RedBrowser.php b/include/RedDAV/RedBrowser.php
index 6639250ae..21ea76aed 100644
--- a/include/RedDAV/RedBrowser.php
+++ b/include/RedDAV/RedBrowser.php
@@ -1,10 +1,4 @@
<?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;
@@ -17,6 +11,9 @@ use Sabre\DAV;
* 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 RedBrowser extends DAV\Browser\Plugin {
@@ -33,6 +30,8 @@ class RedBrowser extends DAV\Browser\Plugin {
* $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.
@@ -52,7 +51,11 @@ class RedBrowser extends DAV\Browser\Plugin {
* 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()?
+ * @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) {
@@ -256,9 +259,18 @@ class RedBrowser extends DAV\Browser\Plugin {
$html .= $output;
get_app()->page['content'] = $html;
+ load_pdl(get_app());
construct_page(get_app());
}
+ /**
+ * @brief Returns a human readable formatted string for filesizes.
+ *
+ * Don't we need such a functionality in other places, too?
+ *
+ * @param int $size filesize in bytes
+ * @return string
+ */
function userReadableSize($size) {
$ret = "";
if (is_numeric($size)) {
diff --git a/include/RedDAV/RedDirectory.php b/include/RedDAV/RedDirectory.php
new file mode 100644
index 000000000..a46b77f5f
--- /dev/null
+++ b/include/RedDAV/RedDirectory.php
@@ -0,0 +1,462 @@
+<?php
+
+namespace RedMatrix\RedDAV;
+
+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 RedDirectory 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) {
+ //logger('directory ' . $ext_path, LOGGER_DATA);
+ $this->ext_path = $ext_path;
+ // remove "/cloud" from the beginning of the path
+ $this->red_path = ((strpos($ext_path, '/cloud') === 0) ? substr($ext_path, 6) : $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, $this->auth->observer, 'view_storage'))) {
+ throw new DAV\Exception\Forbidden('Permission denied.');
+ }
+
+ if ($this->red_path === '/' && $name === 'cloud') {
+ return new RedDirectory('/cloud', $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;
+
+ $r = q("UPDATE attach SET filename = '%s' WHERE hash = '%s' AND uid = %d LIMIT 1",
+ dbesc($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);
+
+ $c = q("SELECT * FROM channel WHERE channel_id = %d AND NOT (channel_pageflags & %d) LIMIT 1",
+ intval($this->auth->owner_id),
+ intval(PAGE_REMOVED)
+ );
+
+ if (! $c) {
+ logger('no channel');
+ throw new DAV\Exception\Forbidden('Permission denied.');
+ }
+
+ $filesize = 0;
+ $hash = random_string();
+
+ $r = q("INSERT INTO attach ( aid, uid, hash, creator, filename, folder, flags, filetype, filesize, revision, data, created, edited, allow_cid, allow_gid, deny_cid, deny_gid )
+ VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s' ) ",
+ intval($c[0]['channel_account_id']),
+ intval($c[0]['channel_id']),
+ dbesc($hash),
+ dbesc($this->auth->observer),
+ dbesc($name),
+ dbesc($this->folder_hash),
+ dbesc(ATTACH_FLAG_OS),
+ dbesc($mimetype),
+ intval($filesize),
+ intval(0),
+ dbesc($this->os_path . '/' . $hash),
+ dbesc(datetime_convert()),
+ dbesc(datetime_convert()),
+ dbesc($c[0]['channel_allow_cid']),
+ dbesc($c[0]['channel_allow_gid']),
+ dbesc($c[0]['channel_deny_cid']),
+ dbesc($c[0]['channel_deny_gid'])
+ );
+
+ $f = 'store/' . $this->auth->owner_nick . '/' . (($this->os_path) ? $this->os_path . '/' : '') . $hash;
+
+ // 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();
+
+ // updates entry with filesize and timestamp
+ $d = q("UPDATE attach SET filesize = '%s', edited = '%s' WHERE hash = '%s' AND uid = %d LIMIT 1",
+ dbesc($size),
+ dbesc($edited),
+ dbesc($hash),
+ intval($c[0]['channel_id'])
+ );
+
+ // update the folder's lastmodified timestamp
+ $e = q("UPDATE attach SET edited = '%s' WHERE hash = '%s' AND uid = %d LIMIT 1",
+ dbesc($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;
+ }
+ }
+ }
+
+ /**
+ * @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.');
+ }
+
+ $r = q("SELECT * FROM channel WHERE channel_id = %d AND NOT (channel_pageflags & %d) LIMIT 1",
+ intval($this->auth->owner_id),
+ intval(PAGE_REMOVED)
+ );
+
+ 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 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?
+ if ($this->red_path === '/' && $name === 'cloud') {
+ //logger('We are at /cloud 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 ($x)
+ return true;
+
+ return false;
+ }
+
+ /**
+ * @todo add description of what this function does.
+ *
+ * @throw \Sabre\DAV\Exception\NotFound
+ * @return void
+ */
+ function getDir() {
+ //logger($this->ext_path, LOGGER_DEBUG);
+ $this->auth->log();
+
+ $file = $this->ext_path;
+
+ $x = strpos($file, '/cloud');
+ if ($x === false)
+ return;
+ if ($x === 0) {
+ $file = substr($file, 6);
+ }
+
+ 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];
+
+ $r = q("SELECT channel_id FROM channel WHERE channel_address = '%s' AND NOT ( channel_pageflags & %d ) LIMIT 1",
+ dbesc($channel_name),
+ intval(PAGE_REMOVED)
+ );
+
+ 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++) {
+ $r = q("select id, hash, filename, flags from attach where folder = '%s' and filename = '%s' and uid = %d and (flags & %d)",
+ dbesc($folder),
+ dbesc($path_arr[$x]),
+ intval($channel_id),
+ intval(ATTACH_FLAG_DIR)
+ );
+
+ if ($r && ( $r[0]['flags'] & ATTACH_FLAG_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) {
+ $c = q("select * from channel where channel_id = %d and not (channel_pageflags & %d) limit 1",
+ intval($this->auth->owner_id),
+ intval(PAGE_REMOVED)
+ );
+
+ $ulimit = service_class_fetch($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/include/RedDAV/RedFile.php b/include/RedDAV/RedFile.php
new file mode 100644
index 000000000..f96790631
--- /dev/null
+++ b/include/RedDAV/RedFile.php
@@ -0,0 +1,279 @@
+<?php
+
+namespace RedMatrix\RedDAV;
+
+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 RedFile 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);
+
+ $r = q("UPDATE attach SET filename = '%s' WHERE hash = '%s' AND id = %d LIMIT 1",
+ dbesc($this->data['filename']),
+ 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
+ $c = q("SELECT * FROM channel WHERE channel_id = %d AND NOT (channel_pageflags & %d) LIMIT 1",
+ intval($this->auth->owner_id),
+ intval(PAGE_REMOVED)
+ );
+
+ $r = q("SELECT flags, folder, data FROM attach WHERE hash = '%s' AND uid = %d LIMIT 1",
+ dbesc($this->data['hash']),
+ intval($c[0]['channel_id'])
+ );
+ if ($r) {
+ if ($r[0]['flags'] & ATTACH_FLAG_OS) {
+ $f = 'store/' . $this->auth->owner_nick . '/' . (($r[0]['data']) ? $r[0]['data'] : '');
+ // @todo check return value and set $size directly
+ @file_put_contents($f, $data);
+ $size = @filesize($f);
+ logger('filename: ' . $f . ' size: ' . $size, LOGGER_DEBUG);
+ } else {
+ $r = q("UPDATE attach SET data = '%s' WHERE hash = '%s' AND uid = %d LIMIT 1",
+ dbesc(stream_get_contents($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();
+
+ $d = q("UPDATE attach SET filesize = '%s', edited = '%s' WHERE hash = '%s' AND uid = %d LIMIT 1",
+ dbesc($size),
+ dbesc($edited),
+ dbesc($this->data['hash']),
+ intval($c[0]['channel_id'])
+ );
+
+ // update the folder's lastmodified timestamp
+ $e = q("UPDATE attach SET edited = '%s' WHERE hash = '%s' AND uid = %d LIMIT 1",
+ dbesc($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);
+
+ $r = q("SELECT data, flags, filename, filetype FROM attach WHERE hash = '%s' AND uid = %d LIMIT 1",
+ dbesc($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="' . $r[0]['filename'] . '"');
+ header('Content-type: text/plain');
+ }
+
+ if ($r[0]['flags'] & ATTACH_FLAG_OS ) {
+ $f = 'store/' . $this->auth->owner_nick . '/' . (($this->os_path) ? $this->os_path . '/' : '') . $r[0]['data'];
+ return fopen($f, 'rb');
+ }
+ return $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 !== $this->data['creator']) || ($this->data['flags'] & ATTACH_FLAG_DIR)) {
+ throw new DAV\Exception\Forbidden('Permission denied.');
+ }
+ }
+
+ attach_delete($this->auth->owner_id, $this->data['hash']);
+ }
+} \ No newline at end of file