nextcloud/lib/template.php

584 lines
19 KiB
PHP

<?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/>.
*
*/
/**
* @brief make OC_Helper::linkTo available as a simple function
* @param $app app
* @param $file file
* @returns link to the file
*
* For further information have a look at OC_Helper::linkTo
*/
function link_to( $app, $file ){
return OC_Helper::linkTo( $app, $file );
}
/**
* @brief make OC_Helper::imagePath available as a simple function
* @param $app app
* @param $image image
* @returns link to the image
*
* For further information have a look at OC_Helper::imagePath
*/
function image_path( $app, $image ){
return OC_Helper::imagePath( $app, $image );
}
/**
* @brief make OC_Helper::mimetypeIcon available as a simple function
* @param $mimetype mimetype
* @returns link to the image
*
* For further information have a look at OC_Helper::mimetypeIcon
*/
function mimetype_icon( $mimetype ){
return OC_Helper::mimetypeIcon( $mimetype );
}
/**
* @brief make OC_Helper::humanFileSize available as a simple function
* @param $bytes size in bytes
* @returns size as string
*
* For further information have a look at OC_Helper::humanFileSize
*/
function human_file_size( $bytes ){
return OC_Helper::humanFileSize( $bytes );
}
function simple_file_size($bytes) {
$mbytes = round($bytes/(1024*1024),1);
if($bytes == 0) { return '0'; }
else if($mbytes < 0.1) { return '&lt; 0.1'; }
else if($mbytes > 1000) { return '&gt; 1000'; }
else { return number_format($mbytes, 1); }
}
function relative_modified_date($timestamp) {
$l=OC_L10N::get('template');
$timediff = time() - $timestamp;
$diffminutes = round($timediff/60);
$diffhours = round($diffminutes/60);
$diffdays = round($diffhours/24);
$diffmonths = round($diffdays/31);
$diffyears = round($diffdays/365);
if($timediff < 60) { return $l->t('seconds ago'); }
else if($timediff < 120) { return $l->t('1 minute ago'); }
else if($timediff < 3600) { return $l->t('%d minutes ago',$diffminutes); }
//else if($timediff < 7200) { return '1 hour ago'; }
//else if($timediff < 86400) { return $diffhours.' hours ago'; }
else if((date('G')-$diffhours) > 0) { return $l->t('today'); }
else if((date('G')-$diffhours) > -24) { return $l->t('yesterday'); }
else if($timediff < 2678400) { return $l->t('%d days ago',$diffdays); }
else if($timediff < 5184000) { return $l->t('last month'); }
else if((date('n')-$diffmonths) > 0) { return $l->t('months ago'); }
else if($timediff < 63113852) { return $l->t('last year'); }
else { return $l->t('years ago'); }
}
function html_select_options($options, $selected, $params=array()) {
if (!is_array($selected)){
$selected=array($selected);
}
if (isset($params['combine']) && $params['combine']){
$options = array_combine($options, $options);
}
$value_name = $label_name = false;
if (isset($params['value'])){
$value_name = $params['value'];
}
if (isset($params['label'])){
$label_name = $params['label'];
}
$html = '';
foreach($options as $value => $label){
if ($value_name && is_array($label)){
$value = $label[$value_name];
}
if ($label_name && is_array($label)){
$label = $label[$label_name];
}
$select = in_array($value, $selected) ? ' selected="selected"' : '';
$html .= '<option value="' . $value . '"' . $select . '>' . $label . '</option>'."\n";
}
return $html;
}
/**
* This class provides the templates for owncloud.
*/
class OC_Template{
private $renderas; // Create a full page?
private $application; // template Application
private $vars; // Vars
private $template; // The path to the template
private $l10n; // The l10n-Object
private $headers=array(); //custom headers
/**
* @brief Constructor
* @param $app app providing the template
* @param $file name of the template file (without suffix)
* @param $renderas = ""; produce a full page
* @returns OC_Template object
*
* This function creates an OC_Template object.
*
* 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 = "" ){
// Set the private data
$this->renderas = $renderas;
$this->application = $app;
$this->vars = array();
$this->l10n = OC_L10N::get($app);
header('X-Frame-Options: Sameorigin');
header('X-XSS-Protection: 1; mode=block');
header('X-Content-Type-Options: nosniff');
$this->findTemplate($name);
}
/**
* @brief Returns the formfactor extension for current formfactor
*/
static public function getFormFactorExtension()
{
$formfactor=$_SESSION['formfactor'];
if($formfactor=='default') {
$fext='';
}elseif($formfactor=='mobile') {
$fext='.mobile';
}elseif($formfactor=='tablet') {
$fext='.tablet';
}elseif($formfactor=='standalone') {
$fext='.standalone';
}else{
$fext='';
}
return $fext;
}
/**
* @brief find the template with the given name
* @param $name of the template file (without suffix)
*
* Will select the template file for the selected theme and formfactor.
* Checking all the possible locations.
*/
protected function findTemplate($name)
{
// Read the selected theme from the config file
$theme=OC_Config::getValue( "theme" );
// Read the detected formfactor and use the right file name.
$fext = self::getFormFactorExtension();
$app = $this->application;
// Check if it is a app template or not.
if( $app != "" ){
// Check if the app is in the app folder or in the root
if( file_exists( OC::$APPSROOT."/apps/$app/templates/" )){
// Check if the template is overwritten by the selected theme
if ($this->checkPathForTemplate(OC::$SERVERROOT."/themes/$theme/apps/$app/templates/", $name, $fext)) {
}elseif ($this->checkPathForTemplate(OC::$APPSROOT."/apps/$app/templates/", $name, $fext)) {
}
}else{
// Check if the template is overwritten by the selected theme
if ($this->checkPathForTemplate(OC::$SERVERROOT."/themes/$theme/$app/templates/", $name, $fext)) {
}elseif ($this->checkPathForTemplate(OC::$SERVERROOT."/$app/templates/", $name, $fext)) {
}else{
echo('template not found: template:'.$name.' formfactor:'.$fext.' webroot:'.OC::$WEBROOT.' serverroot:'.OC::$SERVERROOT);
die();
}
}
}else{
// Check if the template is overwritten by the selected theme
if ($this->checkPathForTemplate(OC::$SERVERROOT."/themes/$theme/core/templates/", $name, $fext)) {
} elseif ($this->checkPathForTemplate(OC::$SERVERROOT."/core/templates/", $name, $fext)) {
}else{
echo('template not found: template:'.$name.' formfactor:'.$fext.' webroot:'.OC::$WEBROOT.' serverroot:'.OC::$SERVERROOT);
die();
}
}
}
/**
* @brief check Path For Template with and without $fext
* @param $path to check
* @param $name of the template file (without suffix)
* @param $fext formfactor extension
* @return bool true when found
*
* Will set $this->template and $this->path if there is a template at
* the specifief $path
*/
protected function checkPathForTemplate($path, $name, $fext)
{
if ($name =='') return false;
$template = null;
if( is_file( $path.$name.$fext.'.php' )){
$template = $path.$name.$fext.'.php';
}elseif( is_file( $path.$name.'.php' )){
$template = $path.$name.'.php';
}
if ($template) {
$this->template = $template;
$this->path = $path;
return true;
}
return false;
}
/**
* @brief Assign variables
* @param $key key
* @param $value value
* @param $sanitizeHTML false, if data shouldn't get passed through htmlentities
* @returns true
*
* 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, $sanitizeHTML=true ){
if($sanitizeHTML == true) {
if(is_array($value)) {
array_walk_recursive($value,'OC_Template::sanitizeHTML');
} else {
$value = OC_Template::sanitizeHTML($value);
}
}
$this->vars[$key] = $value;
return true;
}
/**
* @brief Internaly used to sanitze HTML
*
* This function is internally used to sanitize HTML.
*/
private static function sanitizeHTML( &$value ){
$value = htmlentities( $value );
return $value;
}
/**
* @brief Appends a variable
* @param $key key
* @param $value value
* @returns true
*
* 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] = array( $value );
}
}
/**
* @brief Add a custom element to the header
* @param string tag tag name of the element
* @param array $attributes array of attrobutes for the element
* @param string $text the text content for the element
*/
public function addHeader( $tag, $attributes, $text=''){
$this->headers[]=array('tag'=>$tag,'attributes'=>$attributes,'text'=>$text);
}
/**
* @brief Prints the proceeded template
* @returns true/false
*
* 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;
}
}
/*
* @brief append the $file-url if exist at $root
* @param $type of collection to use when appending
* @param $root path to check
* @param $web base for path
* @param $file the filename
*/
public function appendIfExist($type, $root, $web, $file) {
if (is_file($root.'/'.$file)) {
$pathes = explode('/', $file);
if($type == 'cssfiles' && $root == OC::$APPSROOT && $pathes[0] == 'apps'){
$app = $pathes[1];
unset($pathes[0]);
unset($pathes[1]);
$path = implode('/', $pathes);
$this->append( $type, OC_Helper::linkTo($app, $path));
}else{
$this->append( $type, $web.'/'.$file);
}
return true;
}
return false;
}
/**
* @brief Proceeds the template
* @returns content
*
* This function proceeds the template. If $this->renderas is set, it
* will produce a full page.
*/
public function fetchPage(){
$data = $this->_fetch();
if( $this->renderas ){
// Decide which page we show
if( $this->renderas == "user" ){
$page = new OC_Template( "core", "layout.user" );
$page->assign('searchurl',OC_Helper::linkTo( 'search', 'index.php' ), false);
if(array_search(OC_APP::getCurrentApp(),array('settings','admin','help'))!==false){
$page->assign('bodyid','body-settings', false);
}else{
$page->assign('bodyid','body-user', false);
}
// Add navigation entry
$navigation = OC_App::getNavigation();
$page->assign( "navigation", $navigation, false);
$page->assign( "settingsnavigation", OC_App::getSettingsNavigation(), false);
foreach($navigation as $entry) {
if ($entry['active']) {
$page->assign( 'application', $entry['name'], false );
break;
}
}
}else{
$page = new OC_Template( "core", "layout.guest" );
}
// Read the selected theme from the config file
$theme=OC_Config::getValue( "theme" );
// Read the detected formfactor and use the right file name.
$fext = self::getFormFactorExtension();
$page->assign('jsfiles', array(), false);
// Add the core js files or the js files provided by the selected theme
foreach(OC_Util::$scripts as $script){
// Is it in 3rd party?
if($page->appendIfExist('jsfiles', OC::$THIRDPARTYROOT, OC::$THIRDPARTYWEBROOT, $script.'.js')) {
// Is it in apps and overwritten by the theme?
}elseif($page->appendIfExist('jsfiles', OC::$SERVERROOT, OC::$WEBROOT, "themes/$theme/apps/$script$fext.js" )) {
}elseif($page->appendIfExist('jsfiles', OC::$SERVERROOT, OC::$WEBROOT, "themes/$theme/apps/$script.js" )) {
// Is it part of an app?
}elseif($page->appendIfExist('jsfiles', OC::$APPSROOT, OC::$APPSWEBROOT, "apps/$script$fext.js" )) {
}elseif($page->appendIfExist('jsfiles', OC::$APPSROOT, OC::$APPSWEBROOT, "apps/$script.js" )) {
// Is it in the owncloud root but overwritten by the theme?
}elseif($page->appendIfExist('jsfiles', OC::$SERVERROOT, OC::$WEBROOT, "themes/$theme/$script$fext.js" )) {
}elseif($page->appendIfExist('jsfiles', OC::$SERVERROOT, OC::$WEBROOT, "themes/$theme/$script.js" )) {
// Is it in the owncloud root ?
}elseif($page->appendIfExist('jsfiles', OC::$SERVERROOT, OC::$WEBROOT, "$script$fext.js" )) {
}elseif($page->appendIfExist('jsfiles', OC::$SERVERROOT, OC::$WEBROOT, "$script.js" )) {
// Is in core but overwritten by a theme?
}elseif($page->appendIfExist('jsfiles', OC::$SERVERROOT, OC::$WEBROOT, "themes/$theme/core/$script$fext.js" )) {
}elseif($page->appendIfExist('jsfiles', OC::$SERVERROOT, OC::$WEBROOT, "themes/$theme/core/$script.js" )) {
// Is it in core?
}elseif($page->appendIfExist('jsfiles', OC::$SERVERROOT, OC::$WEBROOT, "core/$script$fext.js" )) {
}elseif($page->appendIfExist('jsfiles', OC::$SERVERROOT, OC::$WEBROOT, "core/$script.js" )) {
}else{
echo('js file not found: script:'.$script.' formfactor:'.$fext.' webroot:'.OC::$WEBROOT.' serverroot:'.OC::$SERVERROOT);
die();
}
}
// Add the css files
$page->assign('cssfiles', array());
foreach(OC_Util::$styles as $style){
// is it in 3rdparty?
if($page->appendIfExist('cssfiles', OC::$THIRDPARTYROOT, OC::$THIRDPARTYWEBROOT, $style.'.css')) {
// or in apps?
}elseif($page->appendIfExist('cssfiles', OC::$APPSROOT, OC::$APPSWEBROOT, "apps/$style$fext.css" )) {
}elseif($page->appendIfExist('cssfiles', OC::$APPSROOT, OC::$APPSWEBROOT, "apps/$style.css" )) {
// or in the owncloud root?
}elseif($page->appendIfExist('cssfiles', OC::$SERVERROOT, OC::$WEBROOT, "$style$fext.css" )) {
}elseif($page->appendIfExist('cssfiles', OC::$SERVERROOT, OC::$WEBROOT, "$style.css" )) {
// or in core ?
}elseif($page->appendIfExist('cssfiles', OC::$SERVERROOT, OC::$WEBROOT, "core/$style$fext.css" )) {
}elseif($page->appendIfExist('cssfiles', OC::$SERVERROOT, OC::$WEBROOT, "core/$style.css" )) {
}else{
echo('css file not found: style:'.$style.' formfactor:'.$fext.' webroot:'.OC::$WEBROOT.' serverroot:'.OC::$SERVERROOT);
die();
}
}
// Add the theme css files. you can override the default values here
if(!empty($theme)) {
foreach(OC_Util::$styles as $style){
if($page->appendIfExist('cssfiles', OC::$SERVERROOT, OC::$WEBROOT, "themes/$theme/apps/$style$fext.css" )) {
}elseif($page->appendIfExist('cssfiles', OC::$SERVERROOT, OC::$WEBROOT, "themes/$theme/apps/$style.css" )) {
}elseif($page->appendIfExist('cssfiles', OC::$SERVERROOT, OC::$WEBROOT, "themes/$theme/$style$fext.css" )) {
}elseif($page->appendIfExist('cssfiles', OC::$SERVERROOT, OC::$WEBROOT, "themes/$theme/$style.css" )) {
}elseif($page->appendIfExist('cssfiles', OC::$SERVERROOT, OC::$WEBROOT, "themes/$theme/core/$style$fext.css" )) {
}elseif($page->appendIfExist('cssfiles', OC::$SERVERROOT, OC::$WEBROOT, "themes/$theme/core/$style.css" )) {
}
}
}
// Add custom headers
$page->assign('headers',$this->headers, false);
foreach(OC_Util::$headers as $header){
$page->append('headers',$header);
}
// Add css files and js files
$page->assign( "content", $data, false );
return $page->fetchPage();
}
else{
return $data;
}
}
/**
* @brief doing the actual work
* @returns content
*
* Includes the template file, fetches its output
*/
private function _fetch(){
// Register the variables
$_ = $this->vars;
$l = $this->l10n;
// Execute the template
ob_start();
include( $this->template ); // <-- we have to use include because we pass $_!
$data = ob_get_contents();
@ob_end_clean();
// return the data
return $data;
}
/**
* @brief Include template
* @returns returns content of included template
*
* Includes another template. use <?php echo $this->inc('template'); ?> to
* do this.
*/
public function inc( $file, $additionalparams = null ){
// $_ erstellen
$_ = $this->vars;
$l = $this->l10n;
if( !is_null($additionalparams)){
$_ = array_merge( $additionalparams, $this->vars );
}
// Include
ob_start();
include( $this->path.$file.'.php' );
$data = ob_get_contents();
@ob_end_clean();
// Return data
return $data;
}
/**
* @brief Shortcut to print a simple page for users
* @param $application The application we render the template for
* @param $name Name of the template
* @param $parameters Parameters for the template
* @returns true/false
*/
public static function printUserPage( $application, $name, $parameters = array() ){
$content = new OC_Template( $application, $name, "user" );
foreach( $parameters as $key => $value ){
$content->assign( $key, $value, false );
}
print $content->printPage();
}
/**
* @brief Shortcut to print a simple page for admins
* @param $application The application we render the template for
* @param $name Name of the template
* @param $parameters Parameters for the template
* @returns true/false
*/
public static function printAdminPage( $application, $name, $parameters = array() ){
$content = new OC_Template( $application, $name, "admin" );
foreach( $parameters as $key => $value ){
$content->assign( $key, $value, false );
}
return $content->printPage();
}
/**
* @brief Shortcut to print a simple page for guests
* @param $application The application we render the template for
* @param $name Name of the template
* @param $parameters Parameters for the template
* @returns true/false
*/
public static function printGuestPage( $application, $name, $parameters = array() ){
$content = new OC_Template( $application, $name, "guest" );
foreach( $parameters as $key => $value ){
$content->assign( $key, $value,false );
}
return $content->printPage();
}
}