mirror of
https://github.com/EGroupware/egroupware.git
synced 2024-11-07 08:34:42 +01:00
some more refactoring and removing some permanent logs
This commit is contained in:
Ralf Becker
parent
a30840b10d
commit
60ff7e8937
@ -69,23 +69,12 @@ use HTTP_WebDAV_Server;
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class Vfs extends Vfs\Base
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{
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const PREFIX = Vfs\StreamWrapper::PREFIX;
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/**
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* Scheme / protocol used for this stream-wrapper
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*/
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const SCHEME = Vfs\StreamWrapper::SCHEME;
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/**
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* Name of the lock table
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*/
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const LOCK_TABLE = 'egw_locks';
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/**
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* How much should be logged to the apache error-log
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*
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* 0 = Nothing
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* 1 = only errors
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* 2 = all function calls and errors (contains passwords too!)
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*/
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const LOG_LEVEL = 1;
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/**
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* Current user has root rights, no access checks performed!
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*
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@ -306,45 +295,6 @@ class Vfs extends Vfs\Base
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return $path[0] == '/' && file_exists(self::PREFIX.$path);
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}
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/**
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* Mounts $url under $path in the vfs, called without parameter it returns the fstab
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*
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* The fstab is stored in the eGW configuration and used for all eGW users.
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*
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* @param string $url =null url of the filesystem to mount, eg. oldvfs://default/
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* @param string $path =null path to mount the filesystem in the vfs, eg. /
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* @param boolean $check_url =null check if url is an existing directory, before mounting it
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* default null only checks if url does not contain a $ as used in $user or $pass
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* @param boolean $persitent_mount =true create a persitent mount, or only a temprary for current request
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* @param boolean $clear_fstab =false true clear current fstab, false (default) only add given mount
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* @return array|boolean array with fstab, if called without parameter or true on successful mount
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*/
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static function mount($url=null,$path=null,$check_url=null,$persitent_mount=true,$clear_fstab=false)
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{
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return Vfs\StreamWrapper::mount($url, $path, $check_url, $persitent_mount, $clear_fstab);
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}
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/**
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* Unmounts a filesystem part of the vfs
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*
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* @param string $path url or path of the filesystem to unmount
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*/
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static function umount($path)
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{
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return Vfs\StreamWrapper::umount($path);
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}
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/**
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* Returns mount url of a full url returned by resolve_url
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*
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* @param string $fullurl full url returned by resolve_url
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* @return string|NULL mount url or null if not found
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*/
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static function mount_url($fullurl)
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{
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return Vfs\StreamWrapper::mount_url($fullurl);
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}
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/**
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* Check if file is hidden: name starts with a '.' or is Thumbs.db or _gsdata_
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*
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@ -1295,21 +1245,12 @@ class Vfs extends Vfs\Base
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* We define all eGW admins the owner of the group directories!
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*
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* @param string $path
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* @param array $stat =null stat for path, default queried by this function
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* @param ?array $stat =null stat for path, default queried by this function
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* @return boolean
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*/
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static function has_owner_rights($path,array $stat=null)
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{
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if (!$stat)
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{
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$vfs = new Vfs\StreamWrapper();
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$stat = $vfs->url_stat($path,0);
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}
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return $stat['uid'] == self::$user && // (current) user is the owner
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// in sharing current user != self::$user and should NOT have owner rights
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$GLOBALS['egw_info']['user']['account_id'] == self::$user ||
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self::$is_root || // class runs with root rights
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!$stat['uid'] && $stat['gid'] && self::$is_admin; // group directory and user is an eGW admin
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return (new Vfs\StreamWrapper())->has_owner_rights($path, $stat);
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}
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/**
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@ -2131,21 +2072,6 @@ class Vfs extends Vfs\Base
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return $vfs->resolve_url_symlinks($_path, $file_exists, $resolve_last_symlink, $stat);
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}
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/**
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* Resolve the given path according to our fstab
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*
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* @param string $_path
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* @param boolean $do_symlink =true is a direct match allowed, default yes (must be false for a lstat or readlink!)
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* @param boolean $use_symlinkcache =true
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* @param boolean $replace_user_pass_host =true replace $user,$pass,$host in url, default true, if false result is not cached
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* @param boolean $fix_url_query =false true append relativ path to url query parameter, default not
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* @return string|boolean false if the url cant be resolved, should not happen if fstab has a root entry
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*/
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static function resolve_url($_path,$do_symlink=true,$use_symlinkcache=true,$replace_user_pass_host=true,$fix_url_query=false)
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{
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return Vfs\StreamWrapper::resolve_url($_path, $do_symlink, $use_symlinkcache, $replace_user_pass_host, $fix_url_query);
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}
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/**
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* This method is called in response to mkdir() calls on URL paths associated with the wrapper.
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*
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@ -2432,9 +2358,9 @@ class Vfs extends Vfs\Base
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static function clearstatcache($path='/')
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{
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//error_log(__METHOD__."('$path')");
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Vfs\StreamWrapper::clearstatcache($path);
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parent::clearstatcache($path);
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self::_call_on_backend('clearstatcache', array($path), true, 0);
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Vfs\StreamWrapper::clearstatcache($path);
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parent::clearstatcache($path);
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}
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/**
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@ -19,6 +19,10 @@ use EGroupware\Api\Vfs;
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*/
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class Base
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{
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/**
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* Scheme / protocol used for this stream-wrapper
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*/
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const SCHEME = 'vfs';
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/**
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* Mime type of directories, the old vfs used 'Directory', while eg. WebDAV uses 'httpd/unix-directory'
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*/
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@ -40,6 +44,453 @@ class Base
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*/
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const MODE_LINK = 0120000;
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/**
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* How much should be logged to the apache error-log
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*
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* 0 = Nothing
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* 1 = only errors
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* 2 = all function calls and errors (contains passwords too!)
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*/
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const LOG_LEVEL = 1;
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/**
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* Our fstab in the form mount-point => url
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*
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* The entry for root has to be the first, or more general if you mount into subdirs the parent has to be before!
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*
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* @var array
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*/
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protected static $fstab = array(
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'/' => 'sqlfs://$host/',
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'/apps' => 'links://$host/apps',
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);
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/**
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* Mounts $url under $path in the vfs, called without parameter it returns the fstab
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*
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* The fstab is stored in the eGW configuration and used for all eGW users.
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*
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* @param string $url =null url of the filesystem to mount, eg. oldvfs://default/
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* @param string $path =null path to mount the filesystem in the vfs, eg. /
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* @param boolean $check_url =null check if url is an existing directory, before mounting it
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* default null only checks if url does not contain a $ as used in $user or $pass
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* @param boolean $persitent_mount =true create a persitent mount, or only a temprary for current request
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* @param boolean $clear_fstab =false true clear current fstab, false (default) only add given mount
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* @return array|boolean array with fstab, if called without parameter or true on successful mount
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*/
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static function mount($url=null,$path=null,$check_url=null,$persitent_mount=true,$clear_fstab=false)
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{
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if (is_null($check_url)) $check_url = strpos($url,'$') === false;
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if (!isset($GLOBALS['egw_info']['server']['vfs_fstab'])) // happens eg. in setup
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{
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$api_config = Api\Config::read('phpgwapi');
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if (isset($api_config['vfs_fstab']) && is_array($api_config['vfs_fstab']))
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{
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self::$fstab = $api_config['vfs_fstab'];
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}
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else
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{
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self::$fstab = array(
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'/' => 'sqlfs://$host/',
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'/apps' => 'links://$host/apps',
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);
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}
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unset($api_config);
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}
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if (is_null($url) || is_null($path))
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{
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if (self::LOG_LEVEL > 1) error_log(__METHOD__.'('.array2string($url).','.array2string($path).') returns '.array2string(self::$fstab));
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return self::$fstab;
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}
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if (!Vfs::$is_root)
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{
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if (self::LOG_LEVEL > 0) error_log(__METHOD__.'('.array2string($url).','.array2string($path).') permission denied, you are NOT root!');
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return false; // only root can mount
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}
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if ($clear_fstab)
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{
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self::$fstab = array();
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}
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if (isset(self::$fstab[$path]) && self::$fstab[$path] === $url)
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{
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if (self::LOG_LEVEL > 0) error_log(__METHOD__.'('.array2string($url).','.array2string($path).') already mounted.');
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return true; // already mounted
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}
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self::load_wrapper(Vfs::parse_url($url,PHP_URL_SCHEME));
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if ($check_url && (!file_exists($url) || opendir($url) === false))
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{
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if (self::LOG_LEVEL > 0) error_log(__METHOD__.'('.array2string($url).','.array2string($path).') url does NOT exist!');
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return false; // url does not exist
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}
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self::$fstab[$path] = $url;
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uksort(self::$fstab, function($a, $b)
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{
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return strlen($a) - strlen($b);
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});
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if ($persitent_mount)
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{
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Api\Config::save_value('vfs_fstab',self::$fstab,'phpgwapi');
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$GLOBALS['egw_info']['server']['vfs_fstab'] = self::$fstab;
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// invalidate session cache
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if (method_exists($GLOBALS['egw'],'invalidate_session_cache')) // egw object in setup is limited
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{
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$GLOBALS['egw']->invalidate_session_cache();
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}
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}
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if (self::LOG_LEVEL > 1) error_log(__METHOD__.'('.array2string($url).','.array2string($path).') returns true (successful new mount).');
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return true;
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}
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/**
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* Unmounts a filesystem part of the vfs
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*
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* @param string $path url or path of the filesystem to unmount
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*/
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static function umount($path)
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{
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if (!Vfs::$is_root)
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{
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if (self::LOG_LEVEL > 0) error_log(__METHOD__.'('.array2string($path).','.array2string($path).') permission denied, you are NOT root!');
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return false; // only root can mount
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}
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if (!isset(self::$fstab[$path]) && ($path = array_search($path,self::$fstab)) === false)
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{
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if (self::LOG_LEVEL > 0) error_log(__METHOD__.'('.array2string($path).') NOT mounted!');
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return false; // $path not mounted
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}
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unset(self::$fstab[$path]);
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Api\Config::save_value('vfs_fstab',self::$fstab,'phpgwapi');
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$GLOBALS['egw_info']['server']['vfs_fstab'] = self::$fstab;
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// invalidate session cache
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if (method_exists($GLOBALS['egw'],'invalidate_session_cache')) // egw object in setup is limited
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{
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$GLOBALS['egw']->invalidate_session_cache();
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}
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if (self::LOG_LEVEL > 1) error_log(__METHOD__.'('.array2string($path).') returns true (successful unmount).');
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return true;
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}
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/**
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* Returns mount url of a full url returned by resolve_url
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*
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* @param string $fullurl full url returned by resolve_url
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* @return string|NULL mount url or null if not found
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*/
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static function mount_url($fullurl)
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{
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foreach(array_reverse(self::$fstab) as $url)
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{
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list($url_no_query) = explode('?',$url);
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if (substr($fullurl,0,1+strlen($url_no_query)) === $url_no_query.'/')
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{
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return $url;
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}
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}
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return null;
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}
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/**
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* Cache of already resolved urls
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*
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* @var array with path => target
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*/
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private static $resolve_url_cache = array();
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private static $wrappers;
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/**
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* Resolve the given path according to our fstab
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*
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* @param string $_path
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* @param boolean $do_symlink =true is a direct match allowed, default yes (must be false for a lstat or readlink!)
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* @param boolean $use_symlinkcache =true
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* @param boolean $replace_user_pass_host =true replace $user,$pass,$host in url, default true, if false result is not cached
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* @param boolean $fix_url_query =false true append relativ path to url query parameter, default not
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* @return string|boolean false if the url cant be resolved, should not happen if fstab has a root entry
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*/
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static function resolve_url($_path,$do_symlink=true,$use_symlinkcache=true,$replace_user_pass_host=true,$fix_url_query=false)
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{
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$path = self::get_path($_path);
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// we do some caching here
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if (isset(self::$resolve_url_cache[$path]) && $replace_user_pass_host)
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{
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if (self::LOG_LEVEL > 1) error_log(__METHOD__."('$path') = '".self::$resolve_url_cache[$path]."' (from cache)");
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return self::$resolve_url_cache[$path];
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}
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// check if we can already resolve path (or a part of it) with a known symlinks
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if ($use_symlinkcache)
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{
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$path = self::symlinkCache_resolve($path,$do_symlink);
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}
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// setting default user, passwd and domain, if it's not contained int the url
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$defaults = array(
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'user' => $GLOBALS['egw_info']['user']['account_lid'],
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'pass' => urlencode($GLOBALS['egw_info']['user']['passwd']),
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'host' => $GLOBALS['egw_info']['user']['domain'],
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'home' => str_replace(array('\\\\','\\'),array('','/'),$GLOBALS['egw_info']['user']['homedirectory']),
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);
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$parts = array_merge(Vfs::parse_url($path),$defaults);
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if (!$parts['host']) $parts['host'] = 'default'; // otherwise we get an invalid url (scheme:///path/to/something)!
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if (!empty($parts['scheme']) && $parts['scheme'] != self::SCHEME)
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{
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if (self::LOG_LEVEL > 1) error_log(__METHOD__."('$path') = '$path' (path is already an url)");
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return $path; // path is already a non-vfs url --> nothing to do
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}
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if (empty($parts['path'])) $parts['path'] = '/';
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foreach(array_reverse(self::$fstab) as $mounted => $url)
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{
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if ($mounted == '/' || $mounted == $parts['path'] || $mounted.'/' == substr($parts['path'],0,strlen($mounted)+1))
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{
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$scheme = Vfs::parse_url($url,PHP_URL_SCHEME);
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if (is_null(self::$wrappers) || !in_array($scheme,self::$wrappers))
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{
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self::load_wrapper($scheme);
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}
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if (($relative = substr($parts['path'],strlen($mounted))))
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{
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$url = Vfs::concat($url,$relative);
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}
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// if url contains url parameter, eg. from filesystem streamwrapper, we need to append relative path here too
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$matches = null;
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if ($fix_url_query && preg_match('|([?&]url=)([^&]+)|', $url, $matches))
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{
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$url = str_replace($matches[0], $matches[1].Vfs::concat($matches[2], substr($parts['path'],strlen($mounted))), $url);
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}
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if ($replace_user_pass_host)
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{
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$url = str_replace(array('$user','$pass','$host','$home'),array($parts['user'],$parts['pass'],$parts['host'],$parts['home']),$url);
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}
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if ($parts['query']) $url .= '?'.$parts['query'];
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if ($parts['fragment']) $url .= '#'.$parts['fragment'];
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if (self::LOG_LEVEL > 1) error_log(__METHOD__."('$path') = '$url'");
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if ($replace_user_pass_host) self::$resolve_url_cache[$path] = $url;
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return $url;
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}
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}
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if (self::LOG_LEVEL > 0) error_log(__METHOD__."('$path') can't resolve path!\n");
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trigger_error(__METHOD__."($path) can't resolve path!\n",E_USER_WARNING);
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return false;
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}
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/**
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* Cache of already resolved symlinks
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*
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* @var array with path => target
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*/
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private static $symlink_cache = array();
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/**
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* Add a resolved symlink to cache
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*
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* @param string $_path vfs path
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* @param string $target target path
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*/
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static protected function symlinkCache_add($_path,$target)
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{
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$path = self::get_path($_path);
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if (isset(self::$symlink_cache[$path])) return; // nothing to do
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if ($target[0] != '/') $target = Vfs::parse_url($target,PHP_URL_PATH);
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self::$symlink_cache[$path] = $target;
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// sort longest path first
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uksort(self::$symlink_cache, function($b, $a)
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{
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return strlen($a) - strlen($b);
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});
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if (self::LOG_LEVEL > 1) error_log(__METHOD__."($path,$target) cache now ".array2string(self::$symlink_cache));
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}
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/**
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* Remove a resolved symlink from cache
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*
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* @param string $_path vfs path
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*/
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static public function symlinkCache_remove($_path)
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{
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$path = self::get_path($_path);
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unset(self::$symlink_cache[$path]);
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if (self::LOG_LEVEL > 1) error_log(__METHOD__."($path) cache now ".array2string(self::$symlink_cache));
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}
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/**
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* Resolve a path from our symlink cache
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*
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* The cache is sorted from longer to shorter pathes.
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*
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* @param string $_path
|
||||
* @param boolean $do_symlink =true is a direct match allowed, default yes (must be false for a lstat or readlink!)
|
||||
* @return string target or path, if path not found
|
||||
*/
|
||||
public static function symlinkCache_resolve($_path, $do_symlink=true)
|
||||
{
|
||||
// remove vfs scheme, but no other schemes (eg. filesystem!)
|
||||
$path = self::get_path($_path);
|
||||
|
||||
$strlen_path = strlen($path);
|
||||
|
||||
foreach(self::$symlink_cache as $p => $t)
|
||||
{
|
||||
if (($strlen_p = strlen($p)) > $strlen_path) continue; // $path can NOT start with $p
|
||||
|
||||
if ($path == $p)
|
||||
{
|
||||
if ($do_symlink) $target = $t;
|
||||
break;
|
||||
}
|
||||
elseif (substr($path,0,$strlen_p+1) == $p.'/')
|
||||
{
|
||||
$target = $t . substr($path,$strlen_p);
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (self::LOG_LEVEL > 1 && isset($target)) error_log(__METHOD__."($path) = $target");
|
||||
return isset($target) ? $target : $path;
|
||||
}
|
||||
|
||||
/**
|
||||
* Clears our internal stat and symlink cache
|
||||
*
|
||||
* Normaly not necessary, as it is automatically cleared/updated, UNLESS Vfs::$user changes!
|
||||
*/
|
||||
static function clearstatcache()
|
||||
{
|
||||
self::$symlink_cache = self::$resolve_url_cache = array();
|
||||
}
|
||||
|
||||
/**
|
||||
* Load stream wrapper for a given schema
|
||||
*
|
||||
* @param string $scheme
|
||||
* @return boolean
|
||||
*/
|
||||
static function load_wrapper($scheme)
|
||||
{
|
||||
if (!in_array($scheme,self::get_wrappers()))
|
||||
{
|
||||
switch($scheme)
|
||||
{
|
||||
case 'webdav':
|
||||
case 'webdavs':
|
||||
require_once('HTTP/WebDAV/Client.php');
|
||||
self::$wrappers[] = $scheme;
|
||||
break;
|
||||
case '':
|
||||
break; // default file, always loaded
|
||||
default:
|
||||
// check if scheme is buildin in php or one of our own stream wrappers
|
||||
if (in_array($scheme,stream_get_wrappers()) || class_exists(self::scheme2class($scheme)))
|
||||
{
|
||||
self::$wrappers[] = $scheme;
|
||||
}
|
||||
else
|
||||
{
|
||||
trigger_error("Can't load stream-wrapper for scheme '$scheme'!",E_USER_WARNING);
|
||||
return false;
|
||||
}
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Return already loaded stream wrappers
|
||||
*
|
||||
* @return array
|
||||
*/
|
||||
static function get_wrappers()
|
||||
{
|
||||
if (is_null(self::$wrappers))
|
||||
{
|
||||
self::$wrappers = stream_get_wrappers();
|
||||
}
|
||||
return self::$wrappers;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get the class-name for a scheme
|
||||
*
|
||||
* A scheme is not allowed to contain an underscore, but allows a dot and a class names only allow or need underscores, but no dots
|
||||
* --> we replace dots in scheme with underscored to get the class-name
|
||||
*
|
||||
* @param string $scheme eg. vfs
|
||||
* @return string
|
||||
*/
|
||||
static function scheme2class($scheme)
|
||||
{
|
||||
if ($scheme === self::SCHEME)
|
||||
{
|
||||
return __CLASS__;
|
||||
}
|
||||
list($app, $app_scheme) = explode('.', $scheme);
|
||||
foreach(array(
|
||||
empty($app_scheme) ? 'EGroupware\\Api\\Vfs\\'.ucfirst($scheme).'\\StreamWrapper' : // streamwrapper in Api\Vfs
|
||||
'EGroupware\\'.ucfirst($app).'\\Vfs\\'.ucfirst($app_scheme).'\\StreamWrapper', // streamwrapper in $app\Vfs
|
||||
str_replace('.','_',$scheme).'_stream_wrapper', // old (flat) name
|
||||
) as $class)
|
||||
{
|
||||
//error_log(__METHOD__."('$scheme') class_exists('$class')=".array2string(class_exists($class)));
|
||||
if (class_exists($class)) return $class;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Getting the path from an url (or path) AND removing trailing slashes
|
||||
*
|
||||
* @param string $path url or path (might contain trailing slash from WebDAV!)
|
||||
* @param string $only_remove_scheme =self::SCHEME if given only that scheme get's removed
|
||||
* @return string path without training slash
|
||||
*/
|
||||
static protected function get_path($path,$only_remove_scheme=self::SCHEME)
|
||||
{
|
||||
if ($path[0] != '/' && (!$only_remove_scheme || Vfs::parse_url($path, PHP_URL_SCHEME) == $only_remove_scheme))
|
||||
{
|
||||
$path = Vfs::parse_url($path, PHP_URL_PATH);
|
||||
}
|
||||
// remove trailing slashes eg. added by WebDAV, but do NOT remove / from "sqlfs://default/"!
|
||||
if ($path != '/')
|
||||
{
|
||||
while (mb_substr($path, -1) == '/' && $path != '/' && ($path[0] == '/' || Vfs::parse_url($path, PHP_URL_PATH) != '/'))
|
||||
{
|
||||
$path = mb_substr($path,0,-1);
|
||||
}
|
||||
}
|
||||
return $path;
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if url contains ro=1 parameter to mark mount readonly
|
||||
*
|
||||
* @param string $url
|
||||
* @return boolean
|
||||
*/
|
||||
static function url_is_readonly($url)
|
||||
{
|
||||
static $cache = array();
|
||||
$ret =& $cache[$url];
|
||||
if (!isset($ret))
|
||||
{
|
||||
$matches = null;
|
||||
$ret = preg_match('/\?(.*&)?ro=([^&]+)/', $url, $matches) && $matches[2];
|
||||
}
|
||||
return $ret;
|
||||
}
|
||||
|
||||
/**
|
||||
* Allow to call methods of the underlying stream wrapper: touch, chmod, chgrp, chown, ...
|
||||
*
|
||||
|
||||
@ -193,8 +193,6 @@ class StreamWrapper extends Api\Db\Pdo implements Vfs\StreamWrapperIface
|
||||
$this->operation = self::url2operation($url);
|
||||
$dir = Vfs::dirname($url);
|
||||
|
||||
error_log(__METHOD__."('$url', $mode, $options) path=$path, context=".json_encode(stream_context_get_options($this->context)));
|
||||
|
||||
$this->opened_path = $opened_path = $path;
|
||||
$this->opened_mode = $mode = str_replace('b','',$mode); // we are always binary, like every Linux system
|
||||
$this->opened_stream = null;
|
||||
@ -1250,10 +1248,6 @@ class StreamWrapper extends Api\Db\Pdo implements Vfs\StreamWrapperIface
|
||||
if (method_exists($GLOBALS['egw'],'invalidate_session_cache')) $GLOBALS['egw']->invalidate_session_cache();
|
||||
return $this->url_stat($url, $flags);
|
||||
}
|
||||
if (!isset($info['effectiv-uid']) && $this->context)
|
||||
{
|
||||
$info['effectiv-uid'] = stream_context_get_options($this->context)[Vfs::SCHEME]['user'];
|
||||
}
|
||||
self::$stat_cache[$path] = $info;
|
||||
|
||||
if (self::LOG_LEVEL > 1) error_log(__METHOD__."($url,$flags)=".array2string($info));
|
||||
@ -1279,7 +1273,7 @@ class StreamWrapper extends Api\Db\Pdo implements Vfs\StreamWrapperIface
|
||||
// 256 = 0400, 32 = 040
|
||||
$sql_read_acl[$user] = '((fs_mode & 4)=4 OR (fs_mode & 256)=256 AND fs_uid='.$user.
|
||||
($memberships ? ' OR (fs_mode & 32)=32 AND fs_gid IN('.implode(',',$memberships).')' : '').')';
|
||||
error_log(__METHOD__."() user=".array2string($user).' --> memberships='.array2string($memberships).' --> '.$sql_read_acl.($memberships?'':': '.function_backtrace()));
|
||||
//error_log(__METHOD__."() user=".array2string($user).' --> memberships='.array2string($memberships).' --> '.$sql_read_acl.($memberships?'':': '.function_backtrace()));
|
||||
}
|
||||
return $sql_read_acl[$user];
|
||||
}
|
||||
@ -1736,7 +1730,6 @@ GROUP BY A.fs_id';
|
||||
// eGW addition to return some extra values
|
||||
'mime' => $info['fs_mime'],
|
||||
'readlink' => $info['fs_link'],
|
||||
'effectiv-uid' => $info['effectiv-uid'],
|
||||
);
|
||||
if (self::LOG_LEVEL > 1) error_log(__METHOD__."($info[name]) = ".array2string($stat));
|
||||
return $stat;
|
||||
|
||||
@ -28,25 +28,12 @@ class StreamWrapper extends Base implements StreamWrapperIface
|
||||
use UserContextTrait;
|
||||
|
||||
const PREFIX = 'vfs://default';
|
||||
/**
|
||||
* Scheme / protocol used for this stream-wrapper
|
||||
*/
|
||||
const SCHEME = 'vfs';
|
||||
|
||||
/**
|
||||
* Should unreadable entries in a not writable directory be hidden, default yes
|
||||
*/
|
||||
const HIDE_UNREADABLES = true;
|
||||
|
||||
/**
|
||||
* How much should be logged to the apache error-log
|
||||
*
|
||||
* 0 = Nothing
|
||||
* 1 = only errors
|
||||
* 2 = all function calls and errors (contains passwords too!)
|
||||
*/
|
||||
const LOG_LEVEL = 1;
|
||||
|
||||
/**
|
||||
* Maximum depth of symlinks, if exceeded url_stat will return false
|
||||
*
|
||||
@ -54,18 +41,6 @@ class StreamWrapper extends Base implements StreamWrapperIface
|
||||
*/
|
||||
const MAX_SYMLINK_DEPTH = 10;
|
||||
|
||||
/**
|
||||
* Our fstab in the form mount-point => url
|
||||
*
|
||||
* The entry for root has to be the first, or more general if you mount into subdirs the parent has to be before!
|
||||
*
|
||||
* @var array
|
||||
*/
|
||||
protected static $fstab = array(
|
||||
'/' => 'sqlfs://$host/',
|
||||
'/apps' => 'links://$host/apps',
|
||||
);
|
||||
|
||||
/**
|
||||
* stream / ressouce this class is opened for by stream_open
|
||||
*
|
||||
@ -134,8 +109,6 @@ class StreamWrapper extends Base implements StreamWrapperIface
|
||||
*/
|
||||
private $extra_dir_ptr;
|
||||
|
||||
private static $wrappers;
|
||||
|
||||
/**
|
||||
* Resolve the given path according to our fstab AND symlinks
|
||||
*
|
||||
@ -173,113 +146,6 @@ class StreamWrapper extends Base implements StreamWrapperIface
|
||||
return $url;
|
||||
}
|
||||
|
||||
/**
|
||||
* Cache of already resolved urls
|
||||
*
|
||||
* @var array with path => target
|
||||
*/
|
||||
private static $resolve_url_cache = array();
|
||||
|
||||
/**
|
||||
* Resolve the given path according to our fstab
|
||||
*
|
||||
* @param string $_path
|
||||
* @param boolean $do_symlink =true is a direct match allowed, default yes (must be false for a lstat or readlink!)
|
||||
* @param boolean $use_symlinkcache =true
|
||||
* @param boolean $replace_user_pass_host =true replace $user,$pass,$host in url, default true, if false result is not cached
|
||||
* @param boolean $fix_url_query =false true append relativ path to url query parameter, default not
|
||||
* @return string|boolean false if the url cant be resolved, should not happen if fstab has a root entry
|
||||
*/
|
||||
static function resolve_url($_path,$do_symlink=true,$use_symlinkcache=true,$replace_user_pass_host=true,$fix_url_query=false)
|
||||
{
|
||||
$path = self::get_path($_path);
|
||||
|
||||
// we do some caching here
|
||||
if (isset(self::$resolve_url_cache[$path]) && $replace_user_pass_host)
|
||||
{
|
||||
if (self::LOG_LEVEL > 1) error_log(__METHOD__."('$path') = '".self::$resolve_url_cache[$path]."' (from cache)");
|
||||
return self::$resolve_url_cache[$path];
|
||||
}
|
||||
// check if we can already resolve path (or a part of it) with a known symlinks
|
||||
if ($use_symlinkcache)
|
||||
{
|
||||
$path = self::symlinkCache_resolve($path,$do_symlink);
|
||||
}
|
||||
// setting default user, passwd and domain, if it's not contained int the url
|
||||
$defaults = array(
|
||||
'user' => $GLOBALS['egw_info']['user']['account_lid'],
|
||||
'pass' => urlencode($GLOBALS['egw_info']['user']['passwd']),
|
||||
'host' => $GLOBALS['egw_info']['user']['domain'],
|
||||
'home' => str_replace(array('\\\\','\\'),array('','/'),$GLOBALS['egw_info']['user']['homedirectory']),
|
||||
);
|
||||
$parts = array_merge(Vfs::parse_url($path),$defaults);
|
||||
if (!$parts['host']) $parts['host'] = 'default'; // otherwise we get an invalid url (scheme:///path/to/something)!
|
||||
|
||||
if (!empty($parts['scheme']) && $parts['scheme'] != self::SCHEME)
|
||||
{
|
||||
if (self::LOG_LEVEL > 1) error_log(__METHOD__."('$path') = '$path' (path is already an url)");
|
||||
return $path; // path is already a non-vfs url --> nothing to do
|
||||
}
|
||||
if (empty($parts['path'])) $parts['path'] = '/';
|
||||
|
||||
foreach(array_reverse(self::$fstab) as $mounted => $url)
|
||||
{
|
||||
if ($mounted == '/' || $mounted == $parts['path'] || $mounted.'/' == substr($parts['path'],0,strlen($mounted)+1))
|
||||
{
|
||||
$scheme = Vfs::parse_url($url,PHP_URL_SCHEME);
|
||||
if (is_null(self::$wrappers) || !in_array($scheme,self::$wrappers))
|
||||
{
|
||||
self::load_wrapper($scheme);
|
||||
}
|
||||
if (($relative = substr($parts['path'],strlen($mounted))))
|
||||
{
|
||||
$url = Vfs::concat($url,$relative);
|
||||
}
|
||||
// if url contains url parameter, eg. from filesystem streamwrapper, we need to append relative path here too
|
||||
$matches = null;
|
||||
if ($fix_url_query && preg_match('|([?&]url=)([^&]+)|', $url, $matches))
|
||||
{
|
||||
$url = str_replace($matches[0], $matches[1].Vfs::concat($matches[2], substr($parts['path'],strlen($mounted))), $url);
|
||||
}
|
||||
|
||||
if ($replace_user_pass_host)
|
||||
{
|
||||
$url = str_replace(array('$user','$pass','$host','$home'),array($parts['user'],$parts['pass'],$parts['host'],$parts['home']),$url);
|
||||
}
|
||||
if ($parts['query']) $url .= '?'.$parts['query'];
|
||||
if ($parts['fragment']) $url .= '#'.$parts['fragment'];
|
||||
|
||||
if (self::LOG_LEVEL > 1) error_log(__METHOD__."('$path') = '$url'");
|
||||
|
||||
if ($replace_user_pass_host) self::$resolve_url_cache[$path] = $url;
|
||||
|
||||
return $url;
|
||||
}
|
||||
}
|
||||
if (self::LOG_LEVEL > 0) error_log(__METHOD__."('$path') can't resolve path!\n");
|
||||
trigger_error(__METHOD__."($path) can't resolve path!\n",E_USER_WARNING);
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Returns mount url of a full url returned by resolve_url
|
||||
*
|
||||
* @param string $fullurl full url returned by resolve_url
|
||||
* @return string|NULL mount url or null if not found
|
||||
*/
|
||||
static function mount_url($fullurl)
|
||||
{
|
||||
foreach(array_reverse(self::$fstab) as $url)
|
||||
{
|
||||
list($url_no_query) = explode('?',$url);
|
||||
if (substr($fullurl,0,1+strlen($url_no_query)) === $url_no_query.'/')
|
||||
{
|
||||
return $url;
|
||||
}
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
/**
|
||||
* This method is called immediately after your stream object is created.
|
||||
*
|
||||
@ -297,8 +163,6 @@ class StreamWrapper extends Base implements StreamWrapperIface
|
||||
unset($options,$opened_path); // not used but required by function signature
|
||||
$this->opened_stream = null;
|
||||
|
||||
error_log(__METHOD__."('$path', $mode, $options) context=".json_encode(stream_context_get_options($this->context)));
|
||||
|
||||
$stat = null;
|
||||
if (!($url = $this->resolve_url_symlinks($path,$mode[0]=='r',true,$stat)))
|
||||
{
|
||||
@ -820,7 +684,6 @@ class StreamWrapper extends Base implements StreamWrapperIface
|
||||
}
|
||||
|
||||
try {
|
||||
clearstatcache(); // testwise, NOT good for performance
|
||||
if ($flags & STREAM_URL_STAT_LINK)
|
||||
{
|
||||
$stat = @lstat($url); // suppressed the stat failed warnings
|
||||
@ -877,7 +740,6 @@ clearstatcache(); // testwise, NOT good for performance
|
||||
// if numer of tries is exceeded, re-throw exception
|
||||
throw $e;
|
||||
}
|
||||
clearstatcache(); // testwise, NOT good for performance
|
||||
// check if a failed url_stat was for a home dir, in that case silently create it
|
||||
if (!$stat && $try_create_home && Vfs::dirname(Vfs::parse_url($path,PHP_URL_PATH)) == '/home' &&
|
||||
($id = $GLOBALS['egw']->accounts->name2id(Vfs::basename($path))) &&
|
||||
@ -947,6 +809,26 @@ clearstatcache(); // testwise, NOT good for performance
|
||||
return self::_call_on_backend('check_extended_acl', [$url, $check], true, 0, true); // true = fail silent if backend does not support
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if the current use has owner rights for the given path or stat
|
||||
*
|
||||
* We define all eGW admins the owner of the group directories!
|
||||
*
|
||||
* @param string $path
|
||||
* @param array $stat =null stat for path, default queried by this function
|
||||
* @return boolean
|
||||
*/
|
||||
function has_owner_rights($path,array $stat=null)
|
||||
{
|
||||
if (!$stat)
|
||||
{
|
||||
$stat = $this->url_stat($path,0);
|
||||
}
|
||||
return $stat['uid'] == $this->user && // (current) user is the owner
|
||||
Vfs::$is_root || // class runs with root rights
|
||||
!$stat['uid'] && $stat['gid'] && Vfs::$is_admin; // group directory and user is an eGW admin
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if path (which fails the stat call) contains symlinks in path-components other then the last one
|
||||
*
|
||||
@ -991,95 +873,6 @@ clearstatcache(); // testwise, NOT good for performance
|
||||
return false; // $path does not exist
|
||||
}
|
||||
|
||||
/**
|
||||
* Cache of already resolved symlinks
|
||||
*
|
||||
* @var array with path => target
|
||||
*/
|
||||
private static $symlink_cache = array();
|
||||
|
||||
/**
|
||||
* Add a resolved symlink to cache
|
||||
*
|
||||
* @param string $_path vfs path
|
||||
* @param string $target target path
|
||||
*/
|
||||
static protected function symlinkCache_add($_path,$target)
|
||||
{
|
||||
$path = self::get_path($_path);
|
||||
|
||||
if (isset(self::$symlink_cache[$path])) return; // nothing to do
|
||||
|
||||
if ($target[0] != '/') $target = Vfs::parse_url($target,PHP_URL_PATH);
|
||||
|
||||
self::$symlink_cache[$path] = $target;
|
||||
|
||||
// sort longest path first
|
||||
uksort(self::$symlink_cache, function($b, $a)
|
||||
{
|
||||
return strlen($a) - strlen($b);
|
||||
});
|
||||
if (self::LOG_LEVEL > 1) error_log(__METHOD__."($path,$target) cache now ".array2string(self::$symlink_cache));
|
||||
}
|
||||
|
||||
/**
|
||||
* Remove a resolved symlink from cache
|
||||
*
|
||||
* @param string $_path vfs path
|
||||
*/
|
||||
static public function symlinkCache_remove($_path)
|
||||
{
|
||||
$path = self::get_path($_path);
|
||||
|
||||
unset(self::$symlink_cache[$path]);
|
||||
if (self::LOG_LEVEL > 1) error_log(__METHOD__."($path) cache now ".array2string(self::$symlink_cache));
|
||||
}
|
||||
|
||||
/**
|
||||
* Resolve a path from our symlink cache
|
||||
*
|
||||
* The cache is sorted from longer to shorter pathes.
|
||||
*
|
||||
* @param string $_path
|
||||
* @param boolean $do_symlink =true is a direct match allowed, default yes (must be false for a lstat or readlink!)
|
||||
* @return string target or path, if path not found
|
||||
*/
|
||||
static public function symlinkCache_resolve($_path,$do_symlink=true)
|
||||
{
|
||||
// remove vfs scheme, but no other schemes (eg. filesystem!)
|
||||
$path = self::get_path($_path);
|
||||
|
||||
$strlen_path = strlen($path);
|
||||
|
||||
foreach(self::$symlink_cache as $p => $t)
|
||||
{
|
||||
if (($strlen_p = strlen($p)) > $strlen_path) continue; // $path can NOT start with $p
|
||||
|
||||
if ($path == $p)
|
||||
{
|
||||
if ($do_symlink) $target = $t;
|
||||
break;
|
||||
}
|
||||
elseif (substr($path,0,$strlen_p+1) == $p.'/')
|
||||
{
|
||||
$target = $t . substr($path,$strlen_p);
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (self::LOG_LEVEL > 1 && isset($target)) error_log(__METHOD__."($path) = $target");
|
||||
return isset($target) ? $target : $path;
|
||||
}
|
||||
|
||||
/**
|
||||
* Clears our internal stat and symlink cache
|
||||
*
|
||||
* Normaly not necessary, as it is automatically cleared/updated, UNLESS Vfs::$user changes!
|
||||
*/
|
||||
static function clearstatcache()
|
||||
{
|
||||
self::$symlink_cache = self::$resolve_url_cache = array();
|
||||
}
|
||||
|
||||
/**
|
||||
* This method is called in response to readdir().
|
||||
*
|
||||
@ -1142,234 +935,6 @@ clearstatcache(); // testwise, NOT good for performance
|
||||
return $ret;
|
||||
}
|
||||
|
||||
/**
|
||||
* Load stream wrapper for a given schema
|
||||
*
|
||||
* @param string $scheme
|
||||
* @return boolean
|
||||
*/
|
||||
static function load_wrapper($scheme)
|
||||
{
|
||||
if (!in_array($scheme,self::get_wrappers()))
|
||||
{
|
||||
switch($scheme)
|
||||
{
|
||||
case 'webdav':
|
||||
case 'webdavs':
|
||||
require_once('HTTP/WebDAV/Client.php');
|
||||
self::$wrappers[] = $scheme;
|
||||
break;
|
||||
case '':
|
||||
break; // default file, always loaded
|
||||
default:
|
||||
// check if scheme is buildin in php or one of our own stream wrappers
|
||||
if (in_array($scheme,stream_get_wrappers()) || class_exists(self::scheme2class($scheme)))
|
||||
{
|
||||
self::$wrappers[] = $scheme;
|
||||
}
|
||||
else
|
||||
{
|
||||
trigger_error("Can't load stream-wrapper for scheme '$scheme'!",E_USER_WARNING);
|
||||
return false;
|
||||
}
|
||||
}
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Return already loaded stream wrappers
|
||||
*
|
||||
* @return array
|
||||
*/
|
||||
static function get_wrappers()
|
||||
{
|
||||
if (is_null(self::$wrappers))
|
||||
{
|
||||
self::$wrappers = stream_get_wrappers();
|
||||
}
|
||||
return self::$wrappers;
|
||||
}
|
||||
|
||||
/**
|
||||
* Get the class-name for a scheme
|
||||
*
|
||||
* A scheme is not allowed to contain an underscore, but allows a dot and a class names only allow or need underscores, but no dots
|
||||
* --> we replace dots in scheme with underscored to get the class-name
|
||||
*
|
||||
* @param string $scheme eg. vfs
|
||||
* @return string
|
||||
*/
|
||||
static function scheme2class($scheme)
|
||||
{
|
||||
if ($scheme === self::SCHEME)
|
||||
{
|
||||
return __CLASS__;
|
||||
}
|
||||
list($app, $app_scheme) = explode('.', $scheme);
|
||||
foreach(array(
|
||||
empty($app_scheme) ? 'EGroupware\\Api\\Vfs\\'.ucfirst($scheme).'\\StreamWrapper' : // streamwrapper in Api\Vfs
|
||||
'EGroupware\\'.ucfirst($app).'\\Vfs\\'.ucfirst($app_scheme).'\\StreamWrapper', // streamwrapper in $app\Vfs
|
||||
str_replace('.','_',$scheme).'_stream_wrapper', // old (flat) name
|
||||
) as $class)
|
||||
{
|
||||
//error_log(__METHOD__."('$scheme') class_exists('$class')=".array2string(class_exists($class)));
|
||||
if (class_exists($class)) return $class;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Getting the path from an url (or path) AND removing trailing slashes
|
||||
*
|
||||
* @param string $path url or path (might contain trailing slash from WebDAV!)
|
||||
* @param string $only_remove_scheme =self::SCHEME if given only that scheme get's removed
|
||||
* @return string path without training slash
|
||||
*/
|
||||
static protected function get_path($path,$only_remove_scheme=self::SCHEME)
|
||||
{
|
||||
if ($path[0] != '/' && (!$only_remove_scheme || Vfs::parse_url($path, PHP_URL_SCHEME) == $only_remove_scheme))
|
||||
{
|
||||
$path = Vfs::parse_url($path, PHP_URL_PATH);
|
||||
}
|
||||
// remove trailing slashes eg. added by WebDAV, but do NOT remove / from "sqlfs://default/"!
|
||||
if ($path != '/')
|
||||
{
|
||||
while (mb_substr($path, -1) == '/' && $path != '/' && ($path[0] == '/' || Vfs::parse_url($path, PHP_URL_PATH) != '/'))
|
||||
{
|
||||
$path = mb_substr($path,0,-1);
|
||||
}
|
||||
}
|
||||
return $path;
|
||||
}
|
||||
|
||||
/**
|
||||
* Check if url contains ro=1 parameter to mark mount readonly
|
||||
*
|
||||
* @param string $url
|
||||
* @return boolean
|
||||
*/
|
||||
static function url_is_readonly($url)
|
||||
{
|
||||
static $cache = array();
|
||||
$ret =& $cache[$url];
|
||||
if (!isset($ret))
|
||||
{
|
||||
$matches = null;
|
||||
$ret = preg_match('/\?(.*&)?ro=([^&]+)/', $url, $matches) && $matches[2];
|
||||
}
|
||||
return $ret;
|
||||
}
|
||||
|
||||
/**
|
||||
* Mounts $url under $path in the vfs, called without parameter it returns the fstab
|
||||
*
|
||||
* The fstab is stored in the eGW configuration and used for all eGW users.
|
||||
*
|
||||
* @param string $url =null url of the filesystem to mount, eg. oldvfs://default/
|
||||
* @param string $path =null path to mount the filesystem in the vfs, eg. /
|
||||
* @param boolean $check_url =null check if url is an existing directory, before mounting it
|
||||
* default null only checks if url does not contain a $ as used in $user or $pass
|
||||
* @param boolean $persitent_mount =true create a persitent mount, or only a temprary for current request
|
||||
* @param boolean $clear_fstab =false true clear current fstab, false (default) only add given mount
|
||||
* @return array|boolean array with fstab, if called without parameter or true on successful mount
|
||||
*/
|
||||
static function mount($url=null,$path=null,$check_url=null,$persitent_mount=true,$clear_fstab=false)
|
||||
{
|
||||
if (is_null($check_url)) $check_url = strpos($url,'$') === false;
|
||||
|
||||
if (!isset($GLOBALS['egw_info']['server']['vfs_fstab'])) // happens eg. in setup
|
||||
{
|
||||
$api_config = Api\Config::read('phpgwapi');
|
||||
if (isset($api_config['vfs_fstab']) && is_array($api_config['vfs_fstab']))
|
||||
{
|
||||
self::$fstab = $api_config['vfs_fstab'];
|
||||
}
|
||||
else
|
||||
{
|
||||
self::$fstab = array(
|
||||
'/' => 'sqlfs://$host/',
|
||||
'/apps' => 'links://$host/apps',
|
||||
);
|
||||
}
|
||||
unset($api_config);
|
||||
}
|
||||
if (is_null($url) || is_null($path))
|
||||
{
|
||||
if (self::LOG_LEVEL > 1) error_log(__METHOD__.'('.array2string($url).','.array2string($path).') returns '.array2string(self::$fstab));
|
||||
return self::$fstab;
|
||||
}
|
||||
if (!Vfs::$is_root)
|
||||
{
|
||||
if (self::LOG_LEVEL > 0) error_log(__METHOD__.'('.array2string($url).','.array2string($path).') permission denied, you are NOT root!');
|
||||
return false; // only root can mount
|
||||
}
|
||||
if ($clear_fstab)
|
||||
{
|
||||
self::$fstab = array();
|
||||
}
|
||||
if (isset(self::$fstab[$path]) && self::$fstab[$path] === $url)
|
||||
{
|
||||
if (self::LOG_LEVEL > 0) error_log(__METHOD__.'('.array2string($url).','.array2string($path).') already mounted.');
|
||||
return true; // already mounted
|
||||
}
|
||||
self::load_wrapper(Vfs::parse_url($url,PHP_URL_SCHEME));
|
||||
|
||||
if ($check_url && (!file_exists($url) || opendir($url) === false))
|
||||
{
|
||||
if (self::LOG_LEVEL > 0) error_log(__METHOD__.'('.array2string($url).','.array2string($path).') url does NOT exist!');
|
||||
return false; // url does not exist
|
||||
}
|
||||
self::$fstab[$path] = $url;
|
||||
|
||||
uksort(self::$fstab, function($a, $b)
|
||||
{
|
||||
return strlen($a) - strlen($b);
|
||||
});
|
||||
|
||||
if ($persitent_mount)
|
||||
{
|
||||
Api\Config::save_value('vfs_fstab',self::$fstab,'phpgwapi');
|
||||
$GLOBALS['egw_info']['server']['vfs_fstab'] = self::$fstab;
|
||||
// invalidate session cache
|
||||
if (method_exists($GLOBALS['egw'],'invalidate_session_cache')) // egw object in setup is limited
|
||||
{
|
||||
$GLOBALS['egw']->invalidate_session_cache();
|
||||
}
|
||||
}
|
||||
if (self::LOG_LEVEL > 1) error_log(__METHOD__.'('.array2string($url).','.array2string($path).') returns true (successful new mount).');
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Unmounts a filesystem part of the vfs
|
||||
*
|
||||
* @param string $path url or path of the filesystem to unmount
|
||||
*/
|
||||
static function umount($path)
|
||||
{
|
||||
if (!Vfs::$is_root)
|
||||
{
|
||||
if (self::LOG_LEVEL > 0) error_log(__METHOD__.'('.array2string($path).','.array2string($path).') permission denied, you are NOT root!');
|
||||
return false; // only root can mount
|
||||
}
|
||||
if (!isset(self::$fstab[$path]) && ($path = array_search($path,self::$fstab)) === false)
|
||||
{
|
||||
if (self::LOG_LEVEL > 0) error_log(__METHOD__.'('.array2string($path).') NOT mounted!');
|
||||
return false; // $path not mounted
|
||||
}
|
||||
unset(self::$fstab[$path]);
|
||||
|
||||
Api\Config::save_value('vfs_fstab',self::$fstab,'phpgwapi');
|
||||
$GLOBALS['egw_info']['server']['vfs_fstab'] = self::$fstab;
|
||||
// invalidate session cache
|
||||
if (method_exists($GLOBALS['egw'],'invalidate_session_cache')) // egw object in setup is limited
|
||||
{
|
||||
$GLOBALS['egw']->invalidate_session_cache();
|
||||
}
|
||||
if (self::LOG_LEVEL > 1) error_log(__METHOD__.'('.array2string($path).') returns true (successful unmount).');
|
||||
return true;
|
||||
}
|
||||
|
||||
/**
|
||||
* Init our static properties and register this wrapper
|
||||
*
|
||||
|
||||
Loading…
Reference in New Issue
Block a user