/**
* Load metadata from the file itself
*/
function loadFromFile()
{
global $wgUseSharedUploads, $wgSharedUploadDirectory, $wgContLang, $wgShowEXIF;
wfProfileIn(__METHOD__);
$this->imagePath = $this->getFullPath();
$this->fileExists = file_exists($this->imagePath);
$this->fromSharedDirectory = false;
$gis = array();
if (!$this->fileExists) {
wfDebug(__METHOD__ . ': ' . $this->imagePath . " not found locally!\n");
}
# If the file is not found, and a shared upload directory is used, look for it there.
if (!$this->fileExists && $wgUseSharedUploads && $wgSharedUploadDirectory) {
# In case we're on a wgCapitalLinks=false wiki, we
# capitalize the first letter of the filename before
# looking it up in the shared repository.
$sharedImage = Image::newFromName($wgContLang->ucfirst($this->name));
$this->fileExists = $sharedImage && file_exists($sharedImage->getFullPath(true));
if ($this->fileExists) {
$this->name = $sharedImage->name;
$this->imagePath = $this->getFullPath(true);
$this->fromSharedDirectory = true;
}
}
if ($this->fileExists) {
$magic =& wfGetMimeMagic();
$this->mime = $magic->guessMimeType($this->imagePath, true);
$this->type = $magic->getMediaType($this->imagePath, $this->mime);
# Get size in bytes
$this->size = filesize($this->imagePath);
$magic =& wfGetMimeMagic();
# Height and width
wfSuppressWarnings();
if ($this->mime == 'image/svg') {
$gis = wfGetSVGsize($this->imagePath);
} elseif ($this->mime == 'image/vnd.djvu') {
$deja = new DjVuImage($this->imagePath);
$gis = $deja->getImageSize();
} elseif (!$magic->isPHPImageType($this->mime)) {
# Don't try to get the width and height of sound and video files, that's bad for performance
$gis = false;
} else {
$gis = getimagesize($this->imagePath);
}
wfRestoreWarnings();
wfDebug(__METHOD__ . ': ' . $this->imagePath . " loaded, " . $this->size . " bytes, " . $this->mime . ".\n");
} else {
$this->mime = NULL;
$this->type = MEDIATYPE_UNKNOWN;
wfDebug(__METHOD__ . ': ' . $this->imagePath . " NOT FOUND!\n");
}
if ($gis) {
$this->width = $gis[0];
$this->height = $gis[1];
} else {
$this->width = 0;
$this->height = 0;
}
#NOTE: $gis[2] contains a code for the image type. This is no longer used.
#NOTE: we have to set this flag early to avoid load() to be called
# be some of the functions below. This may lead to recursion or other bad things!
# as ther's only one thread of execution, this should be safe anyway.
$this->dataLoaded = true;
$this->metadata = serialize($this->retrieveExifData($this->imagePath));
if (isset($gis['bits'])) {
$this->bits = $gis['bits'];
} else {
$this->bits = 0;
}
wfProfileOut(__METHOD__);
}
