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path: root/lib/public/Files/IFilenameValidator.php
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<?php

declare(strict_types=1);

/**
 * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
 * SPDX-License-Identifier: AGPL-3.0-or-later
 */
namespace OCP\Files;

/**
 * @since 30.0.0
 */
interface IFilenameValidator {

	/**
	 * It is recommended to use `\OCP\Files\Storage\IStorage::isFileValid` instead as this
	 * only checks if the filename is valid in general but not for a specific storage
	 * which might have additional naming rules.
	 *
	 * @param string $filename The filename to check for validity
	 * @return bool
	 * @since 30.0.0
	 */
	public function isFilenameValid(string $filename): bool;

	/**
	 * It is recommended to use `\OCP\Files\Storage\IStorage::isFileValid` instead as this
	 * only checks if the filename is valid in general but not for a specific storage
	 * which might have additional naming rules.
	 *
	 * This will validate a filename and throw an exception with details on error.
	 *
	 * @param string $filename The filename to check for validity
	 * @throws \OCP\Files\InvalidPathException or one of its child classes in case of an error
	 * @since 30.0.0
	 */
	public function validateFilename(string $filename): void;

	/**
	 * Sanitize a give filename to comply with admin setup naming constrains.
	 *
	 * If no sanitizing is needed the same name is returned.
	 *
	 * @param string $name The filename to sanitize
	 * @param null|string $charReplacement Character to use for replacing forbidden ones - by default underscore, dash or space is used if allowed.
	 * @throws \InvalidArgumentException if no character replacement was given (and the default could not be applied) or the replacement is not valid.
	 * @since 32.0.0
	 */
	public function sanitizeFilename(string $name, ?string $charReplacement = null): string;

}
.highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */
<?php

/**
 * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
 * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
 * SPDX-License-Identifier: AGPL-3.0-only
 */
namespace OC\Template;

use OCP\Defaults;
use Throwable;

class Base {
	private $template; // The template
	private $vars; // Vars

	/** @var \OCP\IL10N */
	private $l10n;

	/** @var Defaults */
	private $theme;

	/**
	 * @param string $template
	 * @param string $requestToken
	 * @param \OCP\IL10N $l10n
	 * @param string $cspNonce
	 * @param Defaults $theme
	 */
	public function __construct($template, $requestToken, $l10n, $theme, $cspNonce) {
		$this->vars = [
			'cspNonce' => $cspNonce,
			'requesttoken' => $requestToken,
		];
		$this->l10n = $l10n;
		$this->template = $template;
		$this->theme = $theme;
	}

	/**
	 * @param string $serverRoot
	 * @param string|false $app_dir
	 * @param string $theme
	 * @param string $app
	 * @return string[]
	 */
	protected function getAppTemplateDirs($theme, $app, $serverRoot, $app_dir) {
		// Check if the app is in the app folder or in the root
		if ($app_dir !== false && file_exists($app_dir . '/templates/')) {
			return [
				$serverRoot . '/themes/' . $theme . '/apps/' . $app . '/templates/',
				$app_dir . '/templates/',
			];
		}
		return [
			$serverRoot . '/themes/' . $theme . '/' . $app . '/templates/',
			$serverRoot . '/' . $app . '/templates/',
		];
	}

	/**
	 * @param string $serverRoot
	 * @param string $theme
	 * @return string[]
	 */
	protected function getCoreTemplateDirs($theme, $serverRoot) {
		return [
			$serverRoot . '/themes/' . $theme . '/core/templates/',
			$serverRoot . '/core/templates/',
		];
	}

	/**
	 * Assign variables
	 * @param string $key key
	 * @param float|array|bool|integer|string|Throwable $value value
	 * @return bool
	 *
	 * This function assigns a variable. It can be accessed via $_[$key] in
	 * the template.
	 *
	 * If the key existed before, it will be overwritten
	 */
	public function assign($key, $value) {
		$this->vars[$key] = $value;
		return true;
	}

	/**
	 * Appends a variable
	 * @param string $key key
	 * @param mixed $value value
	 *
	 * This function assigns a variable in an array context. If the key already
	 * exists, the value will be appended. It can be accessed via
	 * $_[$key][$position] in the template.
	 */
	public function append($key, $value) {
		if (array_key_exists($key, $this->vars)) {
			$this->vars[$key][] = $value;
		} else {
			$this->vars[$key] = [ $value ];
		}
	}

	/**
	 * Prints the proceeded template
	 * @return bool
	 *
	 * This function proceeds the template and prints its output.
	 */
	public function printPage() {
		$data = $this->fetchPage();
		if ($data === false) {
			return false;
		} else {
			print $data;
			return true;
		}
	}

	/**
	 * Process the template
	 *
	 * @param array|null $additionalParams
	 * @return string This function processes the template.
	 *
	 * This function processes the template.
	 */
	public function fetchPage($additionalParams = null) {
		return $this->load($this->template, $additionalParams);
	}

	/**
	 * doing the actual work
	 *
	 * @param string $file
	 * @param array|null $additionalParams
	 * @return string content
	 *
	 * Includes the template file, fetches its output
	 */
	protected function load($file, $additionalParams = null) {
		// Register the variables
		$_ = $this->vars;
		$l = $this->l10n;
		$theme = $this->theme;

		if (!is_null($additionalParams)) {
			$_ = array_merge($additionalParams, $this->vars);
			foreach ($_ as $var => $value) {
				if (!isset(${$var})) {
					${$var} = $value;
				}
			}
		}

		// Include
		ob_start();
		try {
			include $file;
			$data = ob_get_contents();
		} catch (\Exception $e) {
			@ob_end_clean();
			throw $e;
		}
		@ob_end_clean();

		// Return data
		return $data;
	}
}