/**
* @return bool
*/
public static function selfupgrade()
{
$upgrader = new Upgrader();
if (!Installer::isGravInstance(GRAV_ROOT)) {
return false;
}
if (is_link(GRAV_ROOT . DS . 'index.php')) {
Installer::setError(Installer::IS_LINK);
return false;
}
if (method_exists($upgrader, 'meetsRequirements') && !$upgrader->meetsRequirements()) {
$error = [];
$error[] = '<p>Grav has increased the minimum PHP requirement.<br />';
$error[] = 'You are currently running PHP <strong>' . PHP_VERSION . '</strong>';
$error[] = ', but PHP <strong>' . GRAV_PHP_MIN . '</strong> is required.</p>';
$error[] = '<p><a href="http://getgrav.org/blog/changing-php-requirements-to-5.5" class="button button-small secondary">Additional information</a></p>';
Installer::setError(implode("\n", $error));
return false;
}
$update = $upgrader->getAssets()['grav-update'];
$tmp = Admin::getTempDir() . '/Grav-' . uniqid();
$file = self::_downloadSelfupgrade($update, $tmp);
Installer::install($file, GRAV_ROOT, ['sophisticated' => true, 'overwrite' => true, 'ignore_symlinks' => true]);
$errorCode = Installer::lastErrorCode();
Folder::delete($tmp);
if ($errorCode & (Installer::ZIP_OPEN_ERROR | Installer::ZIP_EXTRACT_ERROR)) {
return false;
}
return true;
}
/**
* Handles ajax upload for files.
* Stores in a flash object the temporary file and deals with potential file errors.
*
* @return bool True if the action was performed.
*/
public function taskFilesUpload()
{
if (!$this->authorizeTask('save', $this->dataPermissions()) || !isset($_FILES)) {
return false;
}
/** @var Config $config */
$config = $this->grav['config'];
$data = $this->view == 'pages' ? $this->admin->page(true) : $this->prepareData([]);
$settings = $data->blueprints()->schema()->getProperty($this->post['name']);
$settings = (object) array_merge(['avoid_overwriting' => false, 'random_name' => false, 'accept' => ['image/*'], 'limit' => 10, 'filesize' => $config->get('system.media.upload_limit', 5242880)], (array) $settings, ['name' => $this->post['name']]);
$upload = $this->normalizeFiles($_FILES['data'], $settings->name);
if (!isset($settings->destination)) {
$this->admin->json_response = ['status' => 'error', 'message' => $this->admin->translate('PLUGIN_ADMIN.DESTINATION_NOT_SPECIFIED', null)];
return false;
}
// Do not use self@ outside of pages
if ($this->view != 'pages' && in_array($settings->destination, ['@self', 'self@'])) {
$this->admin->json_response = ['status' => 'error', 'message' => sprintf($this->admin->translate('PLUGIN_ADMIN.FILEUPLOAD_PREVENT_SELF', null), $settings->destination)];
return false;
}
// Handle errors and breaks without proceeding further
if ($upload->file->error != UPLOAD_ERR_OK) {
$this->admin->json_response = ['status' => 'error', 'message' => sprintf($this->admin->translate('PLUGIN_ADMIN.FILEUPLOAD_UNABLE_TO_UPLOAD', null), $upload->file->name, $this->upload_errors[$upload->file->error])];
return false;
} else {
// Remove the error object to avoid storing it
unset($upload->file->error);
// we need to move the file at this stage or else
// it won't be available upon save later on
// since php removes it from the upload location
$tmp_dir = Admin::getTempDir();
$tmp_file = $upload->file->tmp_name;
$tmp = $tmp_dir . '/uploaded-files/' . basename($tmp_file);
Folder::create(dirname($tmp));
if (!move_uploaded_file($tmp_file, $tmp)) {
$this->admin->json_response = ['status' => 'error', 'message' => sprintf($this->admin->translate('PLUGIN_ADMIN.FILEUPLOAD_UNABLE_TO_MOVE', null), '', $tmp)];
return false;
}
$upload->file->tmp_name = $tmp;
}
// Handle file size limits
$settings->filesize *= 1048576;
// 2^20 [MB in Bytes]
if ($settings->filesize > 0 && $upload->file->size > $settings->filesize) {
$this->admin->json_response = ['status' => 'error', 'message' => $this->admin->translate('PLUGIN_ADMIN.EXCEEDED_GRAV_FILESIZE_LIMIT')];
return false;
}
// Handle Accepted file types
// Accept can only be mime types (image/png | image/*) or file extensions (.pdf|.jpg)
$accepted = false;
$errors = [];
foreach ((array) $settings->accept as $type) {
// Force acceptance of any file when star notation
if ($type == '*') {
$accepted = true;
break;
}
$isMime = strstr($type, '/');
$find = str_replace('*', '.*', $type);
$match = preg_match('#' . $find . '$#', $isMime ? $upload->file->type : $upload->file->name);
if (!$match) {
$message = $isMime ? 'The MIME type "' . $upload->file->type . '"' : 'The File Extension';
$errors[] = $message . ' for the file "' . $upload->file->name . '" is not an accepted.';
$accepted |= false;
} else {
$accepted |= true;
}
}
if (!$accepted) {
$this->admin->json_response = ['status' => 'error', 'message' => implode('<br />', $errors)];
return false;
}
// Retrieve the current session of the uploaded files for the field
// and initialize it if it doesn't exist
$sessionField = base64_encode($this->grav['uri']->url());
$flash = $this->admin->session()->getFlashObject('files-upload');
if (!$flash) {
$flash = [];
}
if (!isset($flash[$sessionField])) {
$flash[$sessionField] = [];
}
if (!isset($flash[$sessionField][$upload->field])) {
$flash[$sessionField][$upload->field] = [];
}
// Set destination
$destination = Folder::getRelativePath(rtrim($settings->destination, '/'));
$destination = $this->admin->getPagePathFromToken($destination);
// Create destination if needed
if (!is_dir($destination)) {
Folder::mkdir($destination);
}
// Generate random name if required
if ($settings->random_name) {
// TODO: document
$extension = pathinfo($upload->file->name)['extension'];
$upload->file->name = Utils::generateRandomString(15) . '.' . $extension;
}
// Handle conflicting name if needed
if ($settings->avoid_overwriting) {
// TODO: document
if (file_exists($destination . '/' . $upload->file->name)) {
$upload->file->name = date('YmdHis') . '-' . $upload->file->name;
}
}
// Prepare object for later save
$path = $destination . '/' . $upload->file->name;
$upload->file->path = $path;
// $upload->file->route = $page ? $path : null;
// Prepare data to be saved later
$flash[$sessionField][$upload->field][$path] = (array) $upload->file;
// Finally store the new uploaded file in the field session
$this->admin->session()->setFlashObject('files-upload', $flash);
$this->admin->json_response = ['status' => 'success', 'session' => \json_encode(['sessionField' => base64_encode($this->grav['uri']->url()), 'path' => $upload->file->path, 'field' => $settings->name])];
return true;
}
