extern/egroupware_official
1
0
Fork 0
mirror of https://github.com/EGroupware/egroupware.git synced 2024-11-27 02:14:45 +01:00
Code Issues Packages Projects Releases Wiki Activity

new mount option for filesystem streamwrapper to specify a download url, to be used instead of default webdav.php download, eg. if mounted directory is already in the docroot or mapped via an alias

Browse Source
This commit is contained in:
Ralf Becker 2010-09-07 12:00:06 +00:00
parent f7652eeb07
commit ef90a7b028
3 changed files with 3253 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1402
phpgwapi/inc/class.egw_vfs.inc.php Normal file
View File

File diff suppressed because it is too large Load Diff

755
phpgwapi/inc/class.filesystem_stream_wrapper.inc.php Normal file
View File

@ -0,0 +1,755 @@
<?php
/**
* eGroupWare API: VFS - stream wrapper to access the regular filesystem (setting a given user, group and mode)
*
* @link http://www.egroupware.org
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package api
* @subpackage vfs
* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
* @copyright (c) 2008-10 by Ralf Becker <RalfBecker-AT-outdoor-training.de>
* @version $Id$
*/
/**
* eGroupWare API: VFS - stream wrapper to access the regular filesystem (setting a given user, group and mode)
*
* This stream wrapper allows to mount parts of the regular filesystem, under specified permissions.
* You can eg. mount an directory in the docroot to allow the Admin group to upload files there.
*
* This stream wrapper uses query parameters to pass certain options to it:
* - user: uid or user-name owning the path, default root
* - group: gid or group-name owning the path, default root
* - mode: mode bit for the path, default 0005 (read and execute for nobody)
* - exec: false (default) = do NOT allow to upload or modify scripts, true = allow it (if docroot is mounted, this allows to run scripts!)
* scripts are considered every file having a script-extension (eg. .php, .pl, .py), defined with SCRIPT_EXTENSION_PREG constant
* - url: download url, if NOT a regular webdav.php download should be used, eg. because directory already
* lies within the docroot or is mapped via an alias
*
* To correctly support characters with special meaning in url's (#?%), we urlencode them with egw_vfs::encodePathComponent
* and urldecode all path again, before passing them to php's filesystem functions.
*
* @link http://www.php.net/manual/en/function.stream-wrapper-register.php
*/
class filesystem_stream_wrapper implements iface_stream_wrapper
{
/**
* Scheme / protocol used for this stream-wrapper
*/
const SCHEME = 'filesystem';
/**
* Mime type of directories, the old vfs used 'Directory', while eg. WebDAV uses 'httpd/unix-directory'
*/
const DIR_MIME_TYPE = egw_vfs::DIR_MIME_TYPE ;
/**
* mode-bits, which have to be set for files
*/
const MODE_FILE = 0100000;
/**
* mode-bits, which have to be set for directories
*/
const MODE_DIR = 040000;
/**
* optional context param when opening the stream, null if no context passed
*
* @var mixed
*/
var $context;
/**
* stream / ressouce this class is opened for by stream_open
*
* @var ressource
*/
private $opened_stream;
/**
* URL of the opened stream, used to build the complete URL of files in the dir
*
* @var string
*/
private $opened_stream_url;
/**
* directory-ressouce this class is opened for by dir_open
*
* @var ressource
*/
private $opened_dir;
/**
* URL of the opened dir, used to build the complete URL of files in the dir
*
* @var string
*/
private $opened_dir_url;
/**
* How much should be logged to the apache error-log
*
* 0 = Nothing
* 1 = only errors
* 2 = all function calls and errors (contains passwords too!)
*/
const LOG_LEVEL = 1;
/**
* Regular expression identifying scripts, to NOT allow updating them if exec mount option is NOT set
*/
const SCRIPT_EXTENSIONS_PREG = '/\.(php[0-9]*|pl|py)$/';
/**
* This method is called immediately after your stream object is created.
*
* @param string $url URL that was passed to fopen() and that this object is expected to retrieve
* @param string $mode mode used to open the file, as detailed for fopen()
* @param int $options additional flags set by the streams API (or'ed together):
* - STREAM_USE_PATH If path is relative, search for the resource using the include_path.
* - STREAM_REPORT_ERRORS If this flag is set, you are responsible for raising errors using trigger_error() during opening of the stream.
* If this flag is not set, you should not raise any errors.
* @param string $opened_path full path of the file/resource, if the open was successfull and STREAM_USE_PATH was set
* @return boolean true if the ressource was opened successful, otherwise false
*/
function stream_open ( $url, $mode, $options, &$opened_path )
{
$this->opened_stream = $this->opened_stream_url = null;
$read_only = str_replace('b','',$mode) == 'r';
// check access rights, based on the eGW mount perms
if (!($stat = self::url_stat($url,0)) || $mode[0] == 'x') // file not found or file should NOT exist
{
$dir = egw_vfs::dirname($url);
if ($mode[0] == 'r' || // does $mode require the file to exist (r,r+)
$mode[0] == 'x' || // or file should not exist, but does
!egw_vfs::check_access($dir,egw_vfs::WRITABLE,$dir_stat=self::url_stat($dir,0))) // or we are not allowed to create it
{
if (self::LOG_LEVEL) error_log(__METHOD__."($url,$mode,$options) file does not exist or can not be created!");
if (!($options & STREAM_URL_STAT_QUIET))
{
trigger_error(__METHOD__."($url,$mode,$options) file does not exist or can not be created!",E_USER_WARNING);
}
return false;
}
}
elseif (!$read_only && !egw_vfs::check_access($url,egw_vfs::WRITABLE,$stat)) // we are not allowed to edit it
{
if (self::LOG_LEVEL) error_log(__METHOD__."($url,$mode,$options) file can not be edited!");
if (!($options & STREAM_URL_STAT_QUIET))
{
trigger_error(__METHOD__."($url,$mode,$options) file can not be edited!",E_USER_WARNING);
}
return false;
}
if (!$read_only && self::deny_script($url))
{
if (self::LOG_LEVEL) error_log(__METHOD__."($url,$mode,$options) permission denied, file is a script!");
if (!($options & STREAM_URL_STAT_QUIET))
{
trigger_error(__METHOD__."($url,$mode,$options) permission denied, file is a script!",E_USER_WARNING);
}
return false;
}
// open the "real" file
if (!($this->opened_stream = fopen($path=urldecode(parse_url($url,PHP_URL_PATH)),$mode,$options)))
{
if (self::LOG_LEVEL) error_log(__METHOD__."($url,$mode,$options) fopen('$path','$mode',$options) returned false!");
return false;
}
$this->opened_stream_url = $url;
return true;
}
/**
* This method is called when the stream is closed, using fclose().
*
* You must release any resources that were locked or allocated by the stream.
*/
function stream_close ( )
{
$ret = fclose($this->opened_stream);
$this->opened_stream = null;
return $ret;
}
/**
* This method is called in response to fread() and fgets() calls on the stream.
*
* You must return up-to count bytes of data from the current read/write position as a string.
* If there are less than count bytes available, return as many as are available.
* If no more data is available, return either FALSE or an empty string.
* You must also update the read/write position of the stream by the number of bytes that were successfully read.
*
* @param int $count
* @return string/false up to count bytes read or false on EOF
*/
function stream_read ( $count )
{
return fread($this->opened_stream,$count);
}
/**
* This method is called in response to fwrite() calls on the stream.
*
* You should store data into the underlying storage used by your stream.
* If there is not enough room, try to store as many bytes as possible.
* You should return the number of bytes that were successfully stored in the stream, or 0 if none could be stored.
* You must also update the read/write position of the stream by the number of bytes that were successfully written.
*
* @param string $data
* @return integer
*/
function stream_write ( $data )
{
return fwrite($this->opened_stream,$data);
}
/**
* This method is called in response to feof() calls on the stream.
*
* Important: PHP 5.0 introduced a bug that wasn't fixed until 5.1: the return value has to be the oposite!
*
* if(version_compare(PHP_VERSION,'5.0','>=') && version_compare(PHP_VERSION,'5.1','<'))
* {
* $eof = !$eof;
* }
*
* @return boolean true if the read/write position is at the end of the stream and no more data availible, false otherwise
*/
function stream_eof ( )
{
return feof($this->opened_stream);
}
/**
* This method is called in response to ftell() calls on the stream.
*
* @return integer current read/write position of the stream
*/
function stream_tell ( )
{
return ftell($this->opened_stream);
}
/**
* This method is called in response to fseek() calls on the stream.
*
* You should update the read/write position of the stream according to offset and whence.
* See fseek() for more information about these parameters.
*
* @param integer $offset
* @param integer $whence SEEK_SET - Set position equal to offset bytes
* SEEK_CUR - Set position to current location plus offset.
* SEEK_END - Set position to end-of-file plus offset. (To move to a position before the end-of-file, you need to pass a negative value in offset.)
* @return boolean TRUE if the position was updated, FALSE otherwise.
*/
function stream_seek ( $offset, $whence )
{
return fseek($this->opened_stream,$offset,$whence);
}
/**
* This method is called in response to fflush() calls on the stream.
*
* If you have cached data in your stream but not yet stored it into the underlying storage, you should do so now.
*
* @return booelan TRUE if the cached data was successfully stored (or if there was no data to store), or FALSE if the data could not be stored.
*/
function stream_flush ( )
{
return fflush($this->opened_stream);
}
/**
* This method is called in response to fstat() calls on the stream.
*
* If you plan to use your wrapper in a require_once you need to define stream_stat().
* If you plan to allow any other tests like is_file()/is_dir(), you have to define url_stat().
* stream_stat() must define the size of the file, or it will never be included.
* url_stat() must define mode, or is_file()/is_dir()/is_executable(), and any of those functions affected by clearstatcache() simply won't work.
* It's not documented, but directories must be a mode like 040777 (octal), and files a mode like 0100666.
* If you wish the file to be executable, use 7s instead of 6s.
* The last 3 digits are exactly the same thing as what you pass to chmod.
* 040000 defines a directory, and 0100000 defines a file.
*
* @return array containing the same values as appropriate for the stream.
*/
function stream_stat ( )
{
return self::url_stat($this->opened_stream_url,0);
}
/**
* This method is called in response to unlink() calls on URL paths associated with the wrapper.
*
* It should attempt to delete the item specified by path.
* In order for the appropriate error message to be returned, do not define this method if your wrapper does not support unlinking!
*
* @param string $url
* @return boolean TRUE on success or FALSE on failure
*/
static function unlink ( $url )
{
$path = urldecode(parse_url($url,PHP_URL_PATH));
// check access rights (file need to exist and directory need to be writable
if (!file_exists($path) || is_dir($path) || !egw_vfs::check_access(egw_vfs::dirname($url),egw_vfs::WRITABLE))
{
if (self::LOG_LEVEL) error_log(__METHOD__."($url) permission denied!");
return false; // no permission or file does not exist
}
return unlink($path);
}
/**
* This method is called in response to rename() calls on URL paths associated with the wrapper.
*
* It should attempt to rename the item specified by path_from to the specification given by path_to.
* In order for the appropriate error message to be returned, do not define this method if your wrapper does not support renaming.
*
* The regular filesystem stream-wrapper returns an error, if $url_from and $url_to are not either both files or both dirs!
*
* @param string $url_from
* @param string $url_to
* @return boolean TRUE on success or FALSE on failure
*/
static function rename ( $url_from, $url_to )
{
$from = parse_url($url_from);
$to = parse_url($url_to);
// check access rights
if (!($from_stat = self::url_stat($url_from,0)) || !egw_vfs::check_access(egw_vfs::dirname($url_from),egw_vfs::WRITABLE))
{
if (self::LOG_LEVEL) error_log(__METHOD__."($url_from,$url_to): $from[path] permission denied!");
return false; // no permission or file does not exist
}
$to_dir = egw_vfs::dirname($url_to);
if (!egw_vfs::check_access($to_dir,egw_vfs::WRITABLE,$to_dir_stat = self::url_stat($to_dir,0)))
{
if (self::LOG_LEVEL) error_log(__METHOD__."($url_from,$url_to): $to_dir permission denied!");
return false; // no permission or parent-dir does not exist
}
if (self::deny_script($url_to))
{
if (self::LOG_LEVEL) error_log(__METHOD__."($url_from,$url_to) permission denied, file is a script!");
return false;
}
// the filesystem stream-wrapper does NOT allow to rename files to directories, as this makes problems
// for our vfs too, we abort here with an error, like the filesystem one does
if (($to_stat = self::url_stat($to['path'],0)) &&
($to_stat['mime'] === self::DIR_MIME_TYPE) !== ($from_stat['mime'] === self::DIR_MIME_TYPE))
{
$is_dir = $to_stat['mime'] === self::DIR_MIME_TYPE ? 'a' : 'no';
if (self::LOG_LEVEL) error_log(__METHOD__."($url_to,$url_from) $to[path] is $is_dir directory!");
return false; // no permission or file does not exist
}
// if destination file already exists, delete it
if ($to_stat && !self::unlink($url_to,$operation))
{
if (self::LOG_LEVEL) error_log(__METHOD__."($url_to,$url_from) can't unlink existing $url_to!");
return false;
}
return rename(urldecode($from['path']),urldecode($to['path']));
}
/**
* This method is called in response to mkdir() calls on URL paths associated with the wrapper.
*
* It should attempt to create the directory specified by path.
* In order for the appropriate error message to be returned, do not define this method if your wrapper does not support creating directories.
*
* @param string $url
* @param int $mode not used, as we dont allow to change mode
* @param int $options Posible values include STREAM_REPORT_ERRORS and STREAM_MKDIR_RECURSIVE
* @return boolean TRUE on success or FALSE on failure
*/
static function mkdir ( $url, $mode, $options )
{
$path = urldecode(parse_url($url,PHP_URL_PATH));
$recursive = (bool)($options & STREAM_MKDIR_RECURSIVE);
// find the real parent (might be more then one level if $recursive!)
do {
$parent = dirname($parent ? $parent : $path);
$parent_url = egw_vfs::dirname($parent_url ? $parent_url : $url);
}
while ($recursive && $parent != '/' && !file_exists($parent));
//echo __METHOD__."($url,$mode,$options) path=$path, recursive=$recursive, parent=$parent, egw_vfs::check_access(parent_url=$parent_url,egw_vfs::WRITABLE)=".(int)egw_vfs::check_access($parent_url,egw_vfs::WRITABLE)."\n";
// check access rights (in real filesystem AND by mount perms)
if (file_exists($path) || !file_exists($parent) || !is_writable($parent) || !egw_vfs::check_access($parent_url,egw_vfs::WRITABLE))
{
if (self::LOG_LEVEL) error_log(__METHOD__."($url) permission denied!");
return false;
}
return mkdir($path,$mode=0700,$recursive); // setting mode 0700 allows (only) apache to write into the dir
}
/**
* This method is called in response to rmdir() calls on URL paths associated with the wrapper.
*
* It should attempt to remove the directory specified by path.
* In order for the appropriate error message to be returned, do not define this method if your wrapper does not support removing directories.
*
* @param string $url
* @param int $options Possible values include STREAM_REPORT_ERRORS.
* @return boolean TRUE on success or FALSE on failure.
*/
static function rmdir ( $url, $options )
{
$path = urldecode(parse_url($url,PHP_URL_PATH));
$parent = dirname($path);
// check access rights (in real filesystem AND by mount perms)
if (!file_exists($path) || !is_writable($parent) || !egw_vfs::check_access(egw_vfs::dirname($url),egw_vfs::WRITABLE))
{
if (self::LOG_LEVEL) error_log(__METHOD__."($url) permission denied!");
return false;
}
return rmdir($path);
}
/**
* This is not (yet) a stream-wrapper function, but it's necessary and can be used static
*
* @param string $path
* @param int $time=null modification time (unix timestamp), default null = current time
* @param int $atime=null access time (unix timestamp), default null = current time, not implemented in the vfs!
* @return boolean true on success, false otherwise
*/
static function touch($url,$time=null,$atime=null)
{
$path = urldecode(parse_url($url,PHP_URL_PATH));
$parent = dirname($path);
// check access rights (in real filesystem AND by mount perms)
if (!file_exists($path) || !is_writable($parent) || !egw_vfs::check_access(egw_vfs::dirname($url),egw_vfs::WRITABLE))
{
if (self::LOG_LEVEL) error_log(__METHOD__."($url) permission denied!");
return false;
}
return touch($path,$time,$atime);
}
/**
* This is not (yet) a stream-wrapper function, but it's necessary and can be used static
*
* Not supported, as it would require root rights!
*
* @param string $path
* @param string $mode mode string see egw_vfs::mode2int
* @return boolean true on success, false otherwise
*/
static function chmod($path,$mode)
{
return false;
}
/**
* This is not (yet) a stream-wrapper function, but it's necessary and can be used static
*
* Not supported, as it would require root rights!
*
* @param string $path
* @param int $owner numeric user id
* @return boolean true on success, false otherwise
*/
static function chown($path,$owner)
{
return false;
}
/**
* This is not (yet) a stream-wrapper function, but it's necessary and can be used static
*
* Not supported, as it would require root rights!
*
* @param string $path
* @param int $group numeric group id
* @return boolean true on success, false otherwise
*/
static function chgrp($path,$group)
{
return false;
}
/**
* This method is called immediately when your stream object is created for examining directory contents with opendir().
*
* @param string $url URL that was passed to opendir() and that this object is expected to explore.
* @param int $options
* @return booelan
*/
function dir_opendir ( $url, $options )
{
if (self::LOG_LEVEL > 1) error_log(__METHOD__."($url,$options)");
$this->opened_dir = null;
$path = urldecode(parse_url($this->opened_dir_url = $url,PHP_URL_PATH));
// ToDo: check access rights
if (!($this->opened_dir = opendir($path)))
{
if (self::LOG_LEVEL > 0) error_log(__METHOD__."($url,$options) opendir('$path') failed!");
return false;
}
return true;
}
/**
* This method is called in response to stat() calls on the URL paths associated with the wrapper.
*
* It should return as many elements in common with the system function as possible.
* Unknown or unavailable values should be set to a rational value (usually 0).
*
* If you plan to use your wrapper in a require_once you need to define stream_stat().
* If you plan to allow any other tests like is_file()/is_dir(), you have to define url_stat().
* stream_stat() must define the size of the file, or it will never be included.
* url_stat() must define mode, or is_file()/is_dir()/is_executable(), and any of those functions affected by clearstatcache() simply won't work.
* It's not documented, but directories must be a mode like 040777 (octal), and files a mode like 0100666.
* If you wish the file to be executable, use 7s instead of 6s.
* The last 3 digits are exactly the same thing as what you pass to chmod.
* 040000 defines a directory, and 0100000 defines a file.
*
* @param string $url
* @param int $flags holds additional flags set by the streams API. It can hold one or more of the following values OR'd together:
* - STREAM_URL_STAT_LINK For resources with the ability to link to other resource (such as an HTTP Location: forward,
* or a filesystem symlink). This flag specified that only information about the link itself should be returned,
* not the resource pointed to by the link.
* This flag is set in response to calls to lstat(), is_link(), or filetype().
* - STREAM_URL_STAT_QUIET If this flag is set, your wrapper should not raise any errors. If this flag is not set,
* you are responsible for reporting errors using the trigger_error() function during stating of the path.
* stat triggers it's own warning anyway, so it makes no sense to trigger one by our stream-wrapper!
* @return array
*/
static function url_stat ( $url, $flags )
{
$parts = parse_url($url);
$path = urldecode($parts['path']);
$stat = @stat($path); // suppressed the stat failed warnings
if ($stat)
{
// set owner, group and mode from mount options
if (!self::parse_query($parts['query'],$uid,$gid,$mode))
{
return false;
if (self::LOG_LEVEL > 0) error_log(__METHOD__."($url,$flags) can NOT self::parse_query('$parts[query]')!");
}
$stat['uid'] = $stat[4] = $uid;
$stat['gid'] = $stat[5] = $gid;
$stat['mode'] = $stat[2] = $stat['mode'] & self::MODE_DIR ? self::MODE_DIR | $mode : self::MODE_FILE | ($mode & ~0111);
// write rights also depend on the write rights of the webserver
if (!is_writable($path))
{
$stat['mode'] = $stat[2] = $stat['mode'] & ~0222;
}
}
if (self::LOG_LEVEL > 1) error_log(__METHOD__."($url,$flags) path=$path, mount_mode=".sprintf('0%o',$mode).", mode=".sprintf('0%o',$stat['mode']).'='.egw_vfs::int2mode($stat['mode']));
return $stat;
}
/**
* This method is called in response to readdir().
*
* It should return a string representing the next filename in the location opened by dir_opendir().
*
* Unless other filesystem, we only return files readable by the user, if the dir is not writable for him.
* This is done to hide files and dirs not accessible by the user (eg. other peoples home-dirs in /home).
*
* @return string
*/
function dir_readdir ( )
{
do {
$file = readdir($this->opened_dir);
$ignore = !($file === false || // stop if no more dirs or
($file != '.' && $file != '..' )); // file not . or ..
if (self::LOG_LEVEL > 1 && $ignore) error_log(__METHOD__.'() ignoring '.array2string($file));
}
while ($ignore);
// encode special chars messing up url's
if ($file !== false) $file = egw_vfs::encodePathComponent($file);
if (self::LOG_LEVEL > 1) error_log(__METHOD__.'() returning '.array2string($file));
return $file;
}
/**
* This method is called in response to rewinddir().
*
* It should reset the output generated by dir_readdir(). i.e.:
* The next call to dir_readdir() should return the first entry in the location returned by dir_opendir().
*
* @return boolean
*/
function dir_rewinddir ( )
{
return rewinddir($this->opened_dir);
}
/**
* This method is called in response to closedir().
*
* You should release any resources which were locked or allocated during the opening and use of the directory stream.
*
* @return boolean
*/
function dir_closedir ( )
{
closedir($this->opened_dir);
$this->opened_dir = $this->extra_dirs = null;
return true;
}
/**
* parse a query containing mount parameters: user, uid, group, gid or mode
*
* @param string|array $query query string or array returned by parse_url (key 'query' holds the value)
* @param int &$uid default if not set is 0=root
* @param int &$gid default if not set is 0=root
* @param int &$mode default if not set is 05 r-x for others
* @return boolean true on successfull parse, false on error
*/
static function parse_query($query,&$uid,&$gid,&$mode)
{
parse_str(is_array($query) ? $query['query'] : $query,$params);
// setting the default perms root.root r-x for other
$uid = $gid = 0;
$mode = 05;
foreach($params as $name => $value)
{
switch($name)
{
case 'user':
if (!is_numeric($value))
{
if ($name === 'root')
{
$value = 0;
}
elseif (($value = $GLOBALS['egw']->accounts->name2id($value,'account_lid','u')) === false)
{
error_log(__METHOD__."('$query') unknown user-name '$value'!");
return false; // wrong user-name
}
}
// fall-through
case 'uid':
if (!is_numeric($value) || $value < 0 || !is_int($value) && !$GLOBALS['egw']->accounts->id2name($value))
{
error_log(__METHOD__."('$query') wrong numeric user-id '$value'!");
return false;
}
$uid = (int)$value;
break;
case 'group':
if (!is_numeric($value))
{
if ($name === 'root')
{
$value = 0;
}
elseif (($value = $GLOBALS['egw']->accounts->name2id($value,'account_lid','g')) === false)
{
error_log(__METHOD__."('$query') unknown group-name '$value'!");
return false; // wrong group-name
}
$value = -$value; // vfs uses positiv gid's!
}
// fall-through
case 'gid':
if (!is_numeric($value) || $value < 0 || !is_int($value) && !$GLOBALS['egw']->accounts->id2name(-$value))
{
error_log(__METHOD__."('$query') wrong numeric group-id '$value'!");
return false;
}
$gid = (int)$value;
break;
case 'mode':
$mode = egw_vfs::mode2int($value);
break;
case 'url':
// ignored, only used for download_url method
break;
default:
error_log(__METHOD__."('$query') unknown option '$name'!");
break;
}
}
//echo __METHOD__.'('.print_r($query,true).") uid=$uid, gid=$gid, mode=".sprintf('0%o',$mode)."\n";
return true;
}
/**
* Check if url is a script (self::$script_extentions) and exec mount option is NOT set
*
* @param string $url
* @return boolean true if $url is a script AND exec is NOT set, false otherwise
*/
static function deny_script($url)
{
$parts = parse_url($url);
parse_str($parts['query'],$get);
$deny = !$get['exec'] && preg_match(self::SCRIPT_EXTENSIONS_PREG,$parts['path']);
if (self::LOG_LEVEL > 1 || self::LOG_LEVEL > 0 && $deny)
{
error_log(__METHOD__."($url) returning ".array2string($deny));
}
return $deny;
}
/**
* URL to download a file
*
* We use our webdav handler as download url instead of an own download method.
* The webdav hander (filemanager/webdav.php) recognices eGW's session cookie and of cause understands regular GET requests.
*
* @param string $url
* @param boolean $force_download=false add header('Content-disposition: filename="' . basename($path) . '"'), currently not supported!
* @todo get $force_download working through webdav
* @return string|false string with full download url or false to use default webdav.php url
*/
static function download_url($url,$force_download=false)
{
list(,$query) = explode('?',$url,2);
parse_str($query,$get);
if (empty($get['url'])) return false; // no download url given for this mount-point
if (!($mount_url = egw_vfs::mount_url($url))) return false; // no mount url found, should not happen
list($mount_url) = explode('?',$mount_url);
list($url,$query) = explode('?',$url,2);
$relpath = substr($url,strlen($mount_url));
$download_url = egw_vfs::concat($get['url'],$relpath);
if ($download_url[0] == '/')
{
$download_url = ($_SERVER['HTTPS'] ? 'https://' : 'http://').
$_SERVER['HTTP_HOST'].$download_url;
}
//die(__METHOD__."('$url') --> relpath = $relpath --> $download_url");
return $download_url;
}
}
stream_register_wrapper(filesystem_stream_wrapper::SCHEME ,'filesystem_stream_wrapper');

1096
phpgwapi/inc/class.vfs_stream_wrapper.inc.php Normal file
View File

File diff suppressed because it is too large Load Diff