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File.php
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File.php
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<?php
namespace
Sabre\DAV\FSExt
;
use
Sabre\DAV
;
use
Sabre\DAV\FS\Node
;
/**
* File class
*
* @copyright Copyright (C) 2007-2015 fruux GmbH (https://fruux.com/).
* @author Evert Pot (http://evertpot.com/)
* @license http://sabre.io/license/ Modified BSD License
*/
class
File
extends
Node
implements
DAV\PartialUpdate\IPatchSupport
{
/**
* Updates the data
*
* Data is a readable stream resource.
*
* @param resource|string $data
* @return string
*/
function
put
(
$data
)
{
file_put_contents
(
$this
->
path
,
$data
);
clearstatcache
(
true
,
$this
->
path
);
return
$this
->
getETag
();
}
/**
* Updates the file based on a range specification.
*
* The first argument is the data, which is either a readable stream
* resource or a string.
*
* The second argument is the type of update we're doing.
* This is either:
* * 1. append
* * 2. update based on a start byte
* * 3. update based on an end byte
*;
* The third argument is the start or end byte.
*
* After a successful put operation, you may choose to return an ETag. The
* ETAG must always be surrounded by double-quotes. These quotes must
* appear in the actual string you're returning.
*
* Clients may use the ETag from a PUT request to later on make sure that
* when they update the file, the contents haven't changed in the mean
* time.
*
* @param resource|string $data
* @param int $rangeType
* @param int $offset
* @return string|null
*/
function
patch
(
$data
,
$rangeType
,
$offset
=
null
)
{
switch
(
$rangeType
)
{
case
1
:
$f
=
fopen
(
$this
->
path
,
'a'
);
break
;
case
2
:
$f
=
fopen
(
$this
->
path
,
'c'
);
fseek
(
$f
,
$offset
);
break
;
case
3
:
$f
=
fopen
(
$this
->
path
,
'c'
);
fseek
(
$f
,
$offset
,
SEEK_END
);
break
;
}
if
(
is_string
(
$data
))
{
fwrite
(
$f
,
$data
);
}
else
{
stream_copy_to_stream
(
$data
,
$f
);
}
fclose
(
$f
);
clearstatcache
(
true
,
$this
->
path
);
return
$this
->
getETag
();
}
/**
* Returns the data
*
* @return resource
*/
function
get
()
{
return
fopen
(
$this
->
path
,
'r'
);
}
/**
* Delete the current file
*
* @return bool
*/
function
delete
()
{
return
unlink
(
$this
->
path
);
}
/**
* 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 string|null
*/
function
getETag
()
{
return
'"'
.
sha1
(
fileinode
(
$this
->
path
)
.
filesize
(
$this
->
path
)
.
filemtime
(
$this
->
path
)
)
.
'"'
;
}
/**
* Returns the mime-type for a file
*
* If null is returned, we'll assume application/octet-stream
*
* @return string|null
*/
function
getContentType
()
{
return
null
;
}
/**
* Returns the size of the file, in bytes
*
* @return int
*/
function
getSize
()
{
return
filesize
(
$this
->
path
);
}
}
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