nextcloud/lib/private/Template/Base.php

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<?php
/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
*
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* @author Bart Visscher <bartv@thisnet.nl>
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* @author Björn Schießle <bjoern@schiessle.org>
* @author Christoph Wurst <christoph@winzerhof-wurst.at>
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* @author Jörn Friedrich Dreyer <jfd@butonic.de>
* @author Julius Härtl <jus@bitgrid.net>
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* @author Lukas Reschke <lukas@statuscode.ch>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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*
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
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*
*/
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 Defaults $theme
*/
public function __construct($template, $requestToken, $l10n, $theme) {
$this->vars = [];
$this->vars['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, $app_dir) {
// Check if the app is in the app folder or in the root
if (file_exists($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 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) {
${$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;
}
}