nextcloud/lib/private/template.php

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<?php
/**
* ownCloud
*
* @author Frank Karlitschek
* @author Jakob Sack
* @copyright 2012 Frank Karlitschek frank@owncloud.org
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
* License as published by the Free Software Foundation; either
* version 3 of the License, or any later version.
*
* This library 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 along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*/
require_once __DIR__.'/template/functions.php';
/**
* This class provides the templates for ownCloud.
*/
class OC_Template extends \OC\Template\Base {
private $renderas; // Create a full page?
private $path; // The path to the template
private $headers = array(); //custom headers
protected $app; // app id
/**
* Constructor
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* @param string $app app providing the template
* @param string $name of the template file (without suffix)
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* @param string $renderas = ""; produce a full page
* @param bool $registerCall = true
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* @return OC_Template object
*
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* This function creates an OC_Template object.
*
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* If $renderas is set, OC_Template will try to produce a full page in the
* according layout. For now, renderas can be set to "guest", "user" or
* "admin".
*/
public function __construct( $app, $name, $renderas = "", $registerCall = true ) {
// Read the selected theme from the config file
$theme = OC_Util::getTheme();
$requesttoken = (OC::$server->getSession() and $registerCall) ? OC_Util::callRegister() : '';
$parts = explode('/', $app); // fix translation when app is something like core/lostpassword
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$l10n = \OC::$server->getL10N($parts[0]);
$themeDefaults = new OC_Defaults();
list($path, $template) = $this->findTemplate($theme, $app, $name);
// Set the private data
$this->renderas = $renderas;
$this->path = $path;
$this->app = $app;
parent::__construct($template, $requesttoken, $l10n, $themeDefaults);
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}
/**
* find the template with the given name
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* @param string $name of the template file (without suffix)
*
* Will select the template file for the selected theme.
* Checking all the possible locations.
* @param string $theme
* @param string $app
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* @return array
*/
protected function findTemplate($theme, $app, $name) {
// Check if it is a app template or not.
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if( $app !== '' ) {
$dirs = $this->getAppTemplateDirs($theme, $app, OC::$SERVERROOT, OC_App::getAppPath($app));
} else {
$dirs = $this->getCoreTemplateDirs($theme, OC::$SERVERROOT);
}
$locator = new \OC\Template\TemplateFileLocator( $dirs );
$template = $locator->find($name);
$path = $locator->getPath();
return array($path, $template);
}
/**
* Add a custom element to the header
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* @param string $tag tag name of the element
* @param array $attributes array of attributes for the element
* @param string $text the text content for the element. If $text is null then the
* element will be written as empty element. So use "" to get a closing tag.
*/
public function addHeader($tag, $attributes, $text=null) {
$this->headers[]= array(
'tag' => $tag,
'attributes' => $attributes,
'text' => $text
);
}
/**
* Process the template
* @return boolean|string
*
* This function process the template. If $this->renderas is set, it
* will produce a full page.
*/
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public function fetchPage() {
$data = parent::fetchPage();
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if( $this->renderas ) {
$page = new OC_TemplateLayout($this->renderas, $this->app);
// Add custom headers
$headers = '';
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foreach(OC_Util::$headers as $header) {
$headers .= '<'.OC_Util::sanitizeHTML($header['tag']);
foreach($header['attributes'] as $name=>$value) {
$headers .= ' '.OC_Util::sanitizeHTML($name).'="'.OC_Util::sanitizeHTML($value).'"';
}
if ($header['text'] !== null) {
$headers .= '>'.OC_Util::sanitizeHTML($header['text']).'</'.OC_Util::sanitizeHTML($header['tag']).'>';
} else {
$headers .= '/>';
}
}
$page->assign('headers', $headers, false);
$page->assign('content', $data, false );
return $page->fetchPage();
}
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else{
return $data;
}
}
/**
* Include template
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* @return string returns content of included template
*
* Includes another template. use <?php echo $this->inc('template'); ?> to
* do this.
*/
public function inc( $file, $additionalParams = null ) {
return $this->load($this->path.$file.'.php', $additionalParams);
}
/**
* Shortcut to print a simple page for users
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* @param string $application The application we render the template for
* @param string $name Name of the template
* @param array $parameters Parameters for the template
* @return boolean|null
*/
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public static function printUserPage( $application, $name, $parameters = array() ) {
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$content = new OC_Template( $application, $name, "user" );
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foreach( $parameters as $key => $value ) {
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$content->assign( $key, $value );
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}
print $content->printPage();
}
/**
* Shortcut to print a simple page for admins
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* @param string $application The application we render the template for
* @param string $name Name of the template
* @param array $parameters Parameters for the template
* @return bool
*/
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public static function printAdminPage( $application, $name, $parameters = array() ) {
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$content = new OC_Template( $application, $name, "admin" );
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foreach( $parameters as $key => $value ) {
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$content->assign( $key, $value );
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}
return $content->printPage();
}
/**
* Shortcut to print a simple page for guests
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* @param string $application The application we render the template for
* @param string $name Name of the template
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* @param array|string $parameters Parameters for the template
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* @return bool
*/
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public static function printGuestPage( $application, $name, $parameters = array() ) {
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$content = new OC_Template( $application, $name, "guest" );
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foreach( $parameters as $key => $value ) {
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$content->assign( $key, $value );
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}
return $content->printPage();
}
/**
* Print a fatal error page and terminates the script
* @param string $error_msg The error message to show
* @param string $hint An optional hint message - needs to be properly escaped
*/
public static function printErrorPage( $error_msg, $hint = '' ) {
$content = new \OC_Template( '', 'error', 'error', false );
$errors = array(array('error' => $error_msg, 'hint' => $hint));
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$content->assign( 'errors', $errors );
$content->printPage();
die();
}
/**
* print error page using Exception details
* @param Exception $exception
*/
public static function printExceptionErrorPage(Exception $exception) {
$request = \OC::$server->getRequest();
$content = new \OC_Template('', 'exception', 'error', false);
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$content->assign('errorClass', get_class($exception));
$content->assign('errorMsg', $exception->getMessage());
$content->assign('errorCode', $exception->getCode());
$content->assign('file', $exception->getFile());
$content->assign('line', $exception->getLine());
$content->assign('trace', $exception->getTraceAsString());
$content->assign('debugMode', defined('DEBUG') && DEBUG === true);
$content->assign('remoteAddr', $request->getRemoteAddress());
$content->assign('requestID', $request->getId());
$content->printPage();
die();
}
/**
* @return bool
*/
public static function isAssetPipelineEnabled() {
// asset management enabled?
$config = \OC::$server->getConfig();
$useAssetPipeline = $config->getSystemValue('asset-pipeline.enabled', false);
if (!$useAssetPipeline) {
return false;
}
// assets folder exists?
$assetDir = $config->getSystemValue('assetdirectory', \OC::$SERVERROOT) . '/assets';
if (!is_dir($assetDir)) {
if (!mkdir($assetDir)) {
\OCP\Util::writeLog('assets',
"Folder <$assetDir> does not exist and/or could not be generated.", \OCP\Util::ERROR);
return false;
}
}
// assets folder can be accessed?
if (!touch($assetDir."/.oc")) {
\OCP\Util::writeLog('assets',
"Folder <$assetDir> could not be accessed.", \OCP\Util::ERROR);
return false;
}
return $useAssetPipeline;
}
}