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PhabricatorFileTransformController.php
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Created
Tue, Aug 6, 22:21
Size
3 KB
Mime Type
text/x-php
Expires
Thu, Aug 8, 22:21 (1 d, 21 h)
Engine
blob
Format
Raw Data
Handle
19683215
Attached To
rPH Phabricator
PhabricatorFileTransformController.php
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<?php
/*
* Copyright 2012 Facebook, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
class
PhabricatorFileTransformController
extends
PhabricatorFileController
{
private
$transform
;
private
$phid
;
public
function
willProcessRequest
(
array
$data
)
{
$this
->
transform
=
$data
[
'transform'
];
$this
->
phid
=
$data
[
'phid'
];
}
public
function
processRequest
()
{
$xform
=
id
(
new
PhabricatorTransformedFile
())
->
loadOneWhere
(
'originalPHID = %s AND transform = %s'
,
$this
->
phid
,
$this
->
transform
);
if
(
$xform
)
{
return
$this
->
buildTransformedFileResponse
(
$xform
);
}
$file
=
id
(
new
PhabricatorFile
())->
loadOneWhere
(
'phid = %s'
,
$this
->
phid
);
if
(!
$file
)
{
return
new
Aphront404Response
();
}
$type
=
$file
->
getMimeType
();
if
(!
$file
->
isViewableInBrowser
()
||
!
$file
->
isTransformableImage
())
{
return
$this
->
buildDefaultTransformation
(
$file
);
}
// We're essentially just building a cache here and don't need CSRF
// protection.
$unguarded
=
AphrontWriteGuard
::
beginScopedUnguardedWrites
();
switch
(
$this
->
transform
)
{
case
'thumb-160x120'
:
$xformed_file
=
$this
->
executeThumbTransform
(
$file
,
160
,
120
);
break
;
case
'thumb-60x45'
:
$xformed_file
=
$this
->
executeThumbTransform
(
$file
,
60
,
45
);
break
;
default
:
return
new
Aphront400Response
();
}
if
(!
$xformed_file
)
{
return
new
Aphront400Response
();
}
$xform
=
new
PhabricatorTransformedFile
();
$xform
->
setOriginalPHID
(
$this
->
phid
);
$xform
->
setTransform
(
$this
->
transform
);
$xform
->
setTransformedPHID
(
$xformed_file
->
getPHID
());
$xform
->
save
();
return
$this
->
buildTransformedFileResponse
(
$xform
);
}
private
function
buildDefaultTransformation
(
PhabricatorFile
$file
)
{
static
$regexps
=
array
(
'@application/zip@'
=>
'zip'
,
'@image/@'
=>
'image'
,
'@application/pdf@'
=>
'pdf'
,
'@.*@'
=>
'default'
,
);
$type
=
$file
->
getMimeType
();
$prefix
=
'default'
;
foreach
(
$regexps
as
$regexp
=>
$implied_prefix
)
{
if
(
preg_match
(
$regexp
,
$type
))
{
$prefix
=
$implied_prefix
;
break
;
}
}
switch
(
$this
->
transform
)
{
case
'thumb-160x120'
:
$suffix
=
'160x120'
;
break
;
case
'thumb-60x45'
:
$suffix
=
'60x45'
;
break
;
default
:
throw
new
Exception
(
"Unsupported transformation type!"
);
}
$path
=
"/rsrc/image/icon/fatcow/thumbnails/{$prefix}{$suffix}.png"
;
return
id
(
new
AphrontRedirectResponse
())
->
setURI
(
$path
);
}
private
function
buildTransformedFileResponse
(
PhabricatorTransformedFile
$xform
)
{
$file
=
id
(
new
PhabricatorFile
())->
loadOneWhere
(
'phid = %s'
,
$xform
->
getTransformedPHID
());
if
(
$file
)
{
$uri
=
$file
->
getBestURI
();
}
else
{
$bad_phid
=
$xform
->
getTransformedPHID
();
throw
new
Exception
(
"Unable to load file with phid {$bad_phid}."
);
}
// TODO: We could just delegate to the file view controller instead,
// which would save the client a roundtrip, but is slightly more complex.
return
id
(
new
AphrontRedirectResponse
())->
setURI
(
$uri
);
}
private
function
executeThumbTransform
(
PhabricatorFile
$file
,
$x
,
$y
)
{
$xformer
=
new
PhabricatorImageTransformer
();
return
$xformer
->
executeThumbTransform
(
$file
,
$x
,
$y
);
}
}
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