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-rw-r--r--includes/media/MediaHandler.php112
1 files changed, 64 insertions, 48 deletions
diff --git a/includes/media/MediaHandler.php b/includes/media/MediaHandler.php
index 965099fd..9a3f645b 100644
--- a/includes/media/MediaHandler.php
+++ b/includes/media/MediaHandler.php
@@ -46,7 +46,7 @@ abstract class MediaHandler {
static function getHandler( $type ) {
global $wgMediaHandlers;
if ( !isset( $wgMediaHandlers[$type] ) ) {
- wfDebug( __METHOD__ . ": no handler found for $type.\n");
+ wfDebug( __METHOD__ . ": no handler found for $type.\n" );
return false;
}
$class = $wgMediaHandlers[$type];
@@ -103,7 +103,7 @@ abstract class MediaHandler {
* can't be determined.
*
* @param $image File: the image object, or false if there isn't one
- * @param $path String: the filename
+ * @param string $path the filename
* @return Array Follow the format of PHP getimagesize() internal function. See http://www.php.net/getimagesize
*/
abstract function getImageSize( $image, $path );
@@ -113,42 +113,42 @@ abstract class MediaHandler {
*
* @param $image File: the image object, or false if there isn't one.
* Warning, FSFile::getPropsFromPath might pass an (object)array() instead (!)
- * @param $path String: the filename
+ * @param string $path the filename
* @return String
*/
function getMetadata( $image, $path ) { return ''; }
/**
- * Get metadata version.
- *
- * This is not used for validating metadata, this is used for the api when returning
- * metadata, since api content formats should stay the same over time, and so things
- * using ForiegnApiRepo can keep backwards compatibility
- *
- * All core media handlers share a common version number, and extensions can
- * use the GetMetadataVersion hook to append to the array (they should append a unique
- * string so not to get confusing). If there was a media handler named 'foo' with metadata
- * version 3 it might add to the end of the array the element 'foo=3'. if the core metadata
- * version is 2, the end version string would look like '2;foo=3'.
- *
- * @return string version string
- */
+ * Get metadata version.
+ *
+ * This is not used for validating metadata, this is used for the api when returning
+ * metadata, since api content formats should stay the same over time, and so things
+ * using ForiegnApiRepo can keep backwards compatibility
+ *
+ * All core media handlers share a common version number, and extensions can
+ * use the GetMetadataVersion hook to append to the array (they should append a unique
+ * string so not to get confusing). If there was a media handler named 'foo' with metadata
+ * version 3 it might add to the end of the array the element 'foo=3'. if the core metadata
+ * version is 2, the end version string would look like '2;foo=3'.
+ *
+ * @return string version string
+ */
static function getMetadataVersion () {
$version = Array( '2' ); // core metadata version
- wfRunHooks('GetMetadataVersion', Array(&$version));
+ wfRunHooks( 'GetMetadataVersion', Array( &$version ) );
return implode( ';', $version);
- }
-
- /**
- * Convert metadata version.
- *
- * By default just returns $metadata, but can be used to allow
- * media handlers to convert between metadata versions.
- *
- * @param $metadata Mixed String or Array metadata array (serialized if string)
- * @param $version Integer target version
- * @return Array serialized metadata in specified version, or $metadata on fail.
- */
+ }
+
+ /**
+ * Convert metadata version.
+ *
+ * By default just returns $metadata, but can be used to allow
+ * media handlers to convert between metadata versions.
+ *
+ * @param $metadata Mixed String or Array metadata array (serialized if string)
+ * @param $version Integer target version
+ * @return Array serialized metadata in specified version, or $metadata on fail.
+ */
function convertMetadataVersion( $metadata, $version = 1 ) {
if ( !is_array( $metadata ) ) {
@@ -181,7 +181,6 @@ abstract class MediaHandler {
return self::METADATA_GOOD;
}
-
/**
* Get a MediaTransformOutput object representing an alternate of the transformed
* output which will call an intermediary thumbnail assist script.
@@ -200,9 +199,9 @@ abstract class MediaHandler {
* actually do the transform.
*
* @param $image File: the image object
- * @param $dstPath String: filesystem destination path
- * @param $dstUrl String: Destination URL to use in output HTML
- * @param $params Array: Arbitrary set of parameters validated by $this->validateParam()
+ * @param string $dstPath filesystem destination path
+ * @param string $dstUrl Destination URL to use in output HTML
+ * @param array $params Arbitrary set of parameters validated by $this->validateParam()
* @return MediaTransformOutput
*/
final function getTransform( $image, $dstPath, $dstUrl, $params ) {
@@ -214,9 +213,9 @@ abstract class MediaHandler {
* transform unless $flags contains self::TRANSFORM_LATER.
*
* @param $image File: the image object
- * @param $dstPath String: filesystem destination path
- * @param $dstUrl String: destination URL to use in output HTML
- * @param $params Array: arbitrary set of parameters validated by $this->validateParam()
+ * @param string $dstPath filesystem destination path
+ * @param string $dstUrl destination URL to use in output HTML
+ * @param array $params arbitrary set of parameters validated by $this->validateParam()
* @param $flags Integer: a bitfield, may contain self::TRANSFORM_LATER
*
* @return MediaTransformOutput
@@ -244,6 +243,15 @@ abstract class MediaHandler {
}
/**
+ * Get useful response headers for GET/HEAD requests for a file with the given metadata
+ * @param $metadata mixed Result of the getMetadata() function of this handler for a file
+ * @return Array
+ */
+ public function getStreamHeaders( $metadata ) {
+ return array();
+ }
+
+ /**
* True if the handled types can be transformed
* @return bool
*/
@@ -352,11 +360,11 @@ abstract class MediaHandler {
*
* This is used by the media handlers that use the FormatMetadata class
*
- * @param $metadataArray Array metadata array
+ * @param array $metadataArray metadata array
* @return array for use displaying metadata.
*/
function formatMetadataHelper( $metadataArray ) {
- $result = array(
+ $result = array(
'visible' => array(),
'collapsed' => array()
);
@@ -396,7 +404,6 @@ abstract class MediaHandler {
return $fields;
}
-
/**
* This is used to generate an array element for each metadata value
* That array is then used to generate the table of metadata values
@@ -405,17 +412,17 @@ abstract class MediaHandler {
* @param &$array Array An array containing elements for each type of visibility
* and each of those elements being an array of metadata items. This function adds
* a value to that array.
- * @param $visibility string ('visible' or 'collapsed') if this value is hidden
+ * @param string $visibility ('visible' or 'collapsed') if this value is hidden
* by default.
- * @param $type String type of metadata tag (currently always 'exif')
- * @param $id String the name of the metadata tag (like 'artist' for example).
+ * @param string $type type of metadata tag (currently always 'exif')
+ * @param string $id the name of the metadata tag (like 'artist' for example).
* its name in the table displayed is the message "$type-$id" (Ex exif-artist ).
- * @param $value String thingy goes into a wikitext table; it used to be escaped but
+ * @param string $value thingy goes into a wikitext table; it used to be escaped but
* that was incompatible with previous practise of customized display
* with wikitext formatting via messages such as 'exif-model-value'.
* So the escaping is taken back out, but generally this seems a confusing
* interface.
- * @param $param String value to pass to the message for the name of the field
+ * @param string $param value to pass to the message for the name of the field
* as $1. Currently this parameter doesn't seem to ever be used.
*
* Note, everything here is passed through the parser later on (!)
@@ -512,7 +519,7 @@ abstract class MediaHandler {
* match the handler class, a Status object should be returned containing
* relevant errors.
*
- * @param $fileName string The local path to the file.
+ * @param string $fileName The local path to the file.
* @return Status object
*/
function verifyUpload( $fileName ) {
@@ -523,8 +530,8 @@ abstract class MediaHandler {
* Check for zero-sized thumbnails. These can be generated when
* no disk space is available or some other error occurs
*
- * @param $dstPath string The location of the suspect file
- * @param $retval int Return value of some shell process, file will be deleted if this is non-zero
+ * @param string $dstPath The location of the suspect file
+ * @param int $retval Return value of some shell process, file will be deleted if this is non-zero
* @return bool True if removed, false otherwise
*/
function removeBadFile( $dstPath, $retval = 0 ) {
@@ -557,4 +564,13 @@ abstract class MediaHandler {
public function filterThumbnailPurgeList( &$files, $options ) {
// Do nothing
}
+
+ /*
+ * True if the handler can rotate the media
+ * @since 1.21
+ * @return bool
+ */
+ public static function canRotate() {
+ return false;
+ }
}