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<?php
/**
* Elgg file browser uploader/edit action
*
* @package ElggFile
* @author Curverider Ltd
* @copyright Curverider Ltd 2008-2010
* @link http://elgg.com/
*/
global $CONFIG;
gatekeeper();
// Get variables
$title = get_input("title");
$desc = get_input("description");
$access_id = (int) get_input("access_id");
$container_guid = (int) get_input('container_guid', 0);
$ajax = get_input('ajax', FALSE);
if ($container_guid == 0) {
$container_guid = get_loggedin_userid();
}
$guid = (int) get_input('file_guid');
$tags = get_input("tags");
// check whether this is a new file or an edit
$new_file = true;
if ($guid > 0) {
$new_file = false;
}
if ($new_file) {
// must have a file if a new file upload
if (empty($_FILES['upload']['name'])) {
// cache information in session
$_SESSION['uploadtitle'] = $title;
$_SESSION['uploaddesc'] = $desc;
$_SESSION['uploadtags'] = $tags;
$_SESSION['uploadaccessid'] = $access_id;
$error = elgg_echo('file:nofile');
if ($ajax) {
echo json_encode(array(
'status' => 'error',
'message' => $error
));
exit;
} else {
register_error($error);
forward($_SERVER['HTTP_REFERER']);
}
}
$file = new FilePluginFile();
$file->subtype = "file";
// if no title on new upload, grab filename
if (empty($title)) {
$title = $_FILES['upload']['name'];
}
} else {
// load original file object
$file = get_entity($guid);
if (!$file) {
register_error(elgg_echo('file:cannotload'));
forward($_SERVER['HTTP_REFERER']);
}
// user must be able to edit file
if (!$file->canEdit()) {
register_error(elgg_echo('file:noaccess'));
forward($_SERVER['HTTP_REFERER']);
}
}
$file->title = $title;
$file->description = $desc;
$file->access_id = $access_id;
$file->container_guid = $container_guid;
$tags = explode(",", $tags);
$file->tags = $tags;
// we have a file upload, so process it
if (isset($_FILES['upload']['name']) && !empty($_FILES['upload']['name'])) {
$prefix = "file/";
// if previous file, delete it
if ($new_file == false) {
$filename = $file->getFilenameOnFilestore();
if (file_exists($filename)) {
unlink($filename);
}
// use same filename on the disk - ensures thumbnails are overwritten
$filestorename = $file->getFilename();
$filestorename = elgg_substr($filestorename, elgg_strlen($prefix));
} else {
$filestorename = elgg_strtolower(time().$_FILES['upload']['name']);
}
$file->setFilename($prefix.$filestorename);
$file->setMimeType($_FILES['upload']['type']);
$file->originalfilename = $_FILES['upload']['name'];
$file->simpletype = get_general_file_type($_FILES['upload']['type']);
$file->open("write");
$file->write(get_uploaded_file('upload'));
$file->close();
$guid = $file->save();
// if image, we need to create thumbnails (this should be moved into a function)
if ($guid && $file->simpletype == "image") {
$thumbnail = get_resized_image_from_existing_file($file->getFilenameOnFilestore(),60,60, true);
if ($thumbnail) {
$thumb = new ElggFile();
$thumb->setMimeType($_FILES['upload']['type']);
$thumb->setFilename($prefix."thumb".$filestorename);
$thumb->open("write");
$thumb->write($thumbnail);
$thumb->close();
$file->thumbnail = $prefix."thumb".$filestorename;
unset($thumbnail);
}
$thumbsmall = get_resized_image_from_existing_file($file->getFilenameOnFilestore(),153,153, true);
if ($thumbsmall) {
$thumb->setFilename($prefix."smallthumb".$filestorename);
$thumb->open("write");
$thumb->write($thumbsmall);
$thumb->close();
$file->smallthumb = $prefix."smallthumb".$filestorename;
unset($thumbsmall);
}
$thumblarge = get_resized_image_from_existing_file($file->getFilenameOnFilestore(),600,600, false);
if ($thumblarge) {
$thumb->setFilename($prefix."largethumb".$filestorename);
$thumb->open("write");
$thumb->write($thumblarge);
$thumb->close();
$file->largethumb = $prefix."largethumb".$filestorename;
unset($thumblarge);
}
}
} else {
// not saving a file but still need to save the entity to push attributes to database
$file->save();
}
// make sure session cache is cleared
unset($_SESSION['uploadtitle']);
unset($_SESSION['uploaddesc']);
unset($_SESSION['uploadtags']);
unset($_SESSION['uploadaccessid']);
// handle results differently for new files and file updates
// ajax is only for new files from embed right now.
if ($new_file) {
if ($guid) {
$message = elgg_echo("file:saved");
if ($ajax) {
echo json_encode(array(
'status' => 'success',
'message' => $message
));
exit;
} else {
system_message($message);
add_to_river('river/object/file/create', 'create', get_loggedin_userid(), $file->guid);
}
} else {
// failed to save file object - nothing we can do about this
$error = elgg_echo("file:uploadfailed");
if ($ajax) {
echo json_encode(array(
'status' => 'error',
'message' => $error
));
exit;
} else {
register_error($error);
}
}
if (!$ajax) {
$container_user = get_entity($container_guid);
forward($CONFIG->wwwroot . "pg/file/" . $container_user->username);
}
} else {
if ($guid) {
system_message(elgg_echo("file:saved"));
} else {
register_error(elgg_echo("file:uploadfailed"));
}
forward($file->getURL());
}
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