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MediaFile thumbnail event hooks + VideoThumbnails plugin

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The exception thrown from MediaFile will be caught and simply result in
no thumbnail at all right now. In the future we might use a catch-all
and have a "cannot generate preview"-icon or something.

VideoThumbnails requires php5-ffmpeg and php5-gd.
This commit is contained in:
Mikael Nordfeldth
2014-04-16 19:14:26 +02:00
parent 00aa3fa734
commit 06d4cecf7f
7 changed files with 197 additions and 32 deletions
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57
lib/mediafile.php
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@@ -43,6 +43,7 @@ class MediaFile
var $fileurl = null;
var $short_fileurl = null;
var $mimetype = null;
var $thumbnailRecord = null;
function __construct(Profile $scoped, $filename = null, $mimetype = null)
{
@@ -51,7 +52,12 @@ class MediaFile
$this->filename = $filename;
$this->mimetype = $mimetype;
$this->fileRecord = $this->storeFile();
$this->thumbnailRecord = $this->storeThumbnail();
try {
$this->thumbnailRecord = $this->storeThumbnail();
} catch (UnsupportedMediaException $e) {
// FIXME: Add "unknown media" icon or something
$this->thumbnailRecord = null;
}
$this->fileurl = common_local_url('attachment',
array('attachment' => $this->fileRecord->id));
@@ -68,6 +74,11 @@ class MediaFile
common_local_url('file', array('notice' => $notice->id)));
}
public function getPath()
{
return File::path($this->filename);
}
function shortUrl()
{
return $this->short_fileurl;
@@ -108,16 +119,30 @@ class MediaFile
*/
function storeThumbnail()
{
if (substr($this->mimetype, 0, strlen('image/')) != 'image/') {
// @fixme video thumbs would be nice!
return null;
$imgPath = null;
$media = common_get_mime_media($this->mimetype);
if (Event::handle('CreateFileImageThumbnail', array($this, &$imgPath, $media))) {
switch ($media) {
case 'image':
$imgPath = $this->getPath();
break;
default:
throw new UnsupportedMediaException(_('Unsupported media format.'), $this->getPath());
}
}
if (!file_exists($imgPath)) {
throw new ServerException(sprintf('Thumbnail source is not stored locally: %s', $imgPath));
}
try {
$image = new ImageFile($this->fileRecord->id,
File::path($this->filename));
} catch (Exception $e) {
// Unsupported image type.
return null;
$image = new ImageFile($this->fileRecord->id, $imgPath);
} catch (UnsupportedMediaException $e) {
// Avoid deleting the original
if ($image->getPath() != $this->getPath()) {
$image->unlink();
}
throw $e;
}
$outname = File::filename($this->scoped, 'thumb-' . $this->filename, $this->mimetype);
@@ -128,7 +153,12 @@ class MediaFile
list($width, $height) = $this->scaleToFit($image->width, $image->height, $maxWidth, $maxHeight);
$image->resizeTo($outpath, $width, $height);
File_thumbnail::saveThumbnail($this->fileRecord->id,
// Avoid deleting the original
if ($image->getPath() != $this->getPath()) {
$image->unlink();
}
return File_thumbnail::saveThumbnail($this->fileRecord->id,
File::url($outname),
$width,
$height);
@@ -189,40 +219,33 @@ class MediaFile
// TRANS: Client exception thrown when an uploaded file is larger than set in php.ini.
throw new ClientException(_('The uploaded file exceeds the ' .
'upload_max_filesize directive in php.ini.'));
return;
case UPLOAD_ERR_FORM_SIZE:
throw new ClientException(
// TRANS: Client exception.
_('The uploaded file exceeds the MAX_FILE_SIZE directive' .
' that was specified in the HTML form.'));
return;
case UPLOAD_ERR_PARTIAL:
@unlink($_FILES[$param]['tmp_name']);
// TRANS: Client exception.
throw new ClientException(_('The uploaded file was only' .
' partially uploaded.'));
return;
case UPLOAD_ERR_NO_FILE:
// No file; probably just a non-AJAX submission.
return;
case UPLOAD_ERR_NO_TMP_DIR:
// TRANS: Client exception thrown when a temporary folder is not present to store a file upload.
throw new ClientException(_('Missing a temporary folder.'));
return;
case UPLOAD_ERR_CANT_WRITE:
// TRANS: Client exception thrown when writing to disk is not possible during a file upload operation.
throw new ClientException(_('Failed to write file to disk.'));
return;
case UPLOAD_ERR_EXTENSION:
// TRANS: Client exception thrown when a file upload operation has been stopped by an extension.
throw new ClientException(_('File upload stopped by extension.'));
return;
default:
common_log(LOG_ERR, __METHOD__ . ": Unknown upload error " .
$_FILES[$param]['error']);
// TRANS: Client exception thrown when a file upload operation has failed with an unknown reason.
throw new ClientException(_('System error uploading file.'));
return;
}
// Throws exception if additional size does not respect quota