nextcloud/lib/template.php

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<?php
/**
* ownCloud
*
* @author Frank Karlitschek
* @author Jakob Sack
* @copyright 2010 Frank Karlitschek karlitschek@kde.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/>.
*
*/
/**
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* @brief make OC_Helper::linkTo available as a simple function
* @param $app app
* @param $file file
* @returns link to the file
*
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* For further information have a look at OC_Helper::linkTo
*/
function link_to( $app, $file ){
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return OC_Helper::linkTo( $app, $file );
}
/**
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* @brief make OC_Helper::imagePath available as a simple function
* @param $app app
* @param $image image
* @returns link to the image
*
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* For further information have a look at OC_Helper::imagePath
*/
function image_path( $app, $image ){
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return OC_Helper::imagePath( $app, $image );
}
/**
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* @brief make OC_Helper::mimetypeIcon available as a simple function
* @param $mimetype mimetype
* @returns link to the image
*
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* For further information have a look at OC_Helper::mimetypeIcon
*/
function mimetype_icon( $mimetype ){
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return OC_Helper::mimetypeIcon( $mimetype );
}
/**
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* @brief make OC_Helper::humanFileSize available as a simple function
* @param $bytes size in bytes
* @returns size as string
*
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* For further information have a look at OC_Helper::humanFileSize
*/
function human_file_size( $bytes ){
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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 '< 0.1'; }
else if($mbytes > 1000) { return '> 1000'; }
else { return number_format($mbytes, 1); }
}
function relative_modified_date($timestamp) {
$timediff = time() - $timestamp;
$diffminutes = round($timediff/60);
$diffhours = round($diffminutes/60);
$diffdays = round($diffhours/24);
$diffmonths = round($diffdays/31);
$diffyears = round($diffdays/365);
if($timediff < 60) { return 'seconds ago'; }
else if($timediff < 120) { return '1 minute ago'; }
else if($timediff < 3600) { return $diffminutes.' minutes ago'; }
//else if($timediff < 7200) { return '1 hour ago'; }
//else if($timediff < 86400) { return $diffhours.' hours ago'; }
else if($timediff < 86400) { return 'today'; }
else if($timediff < 172800) { return 'yesterday'; }
else if($timediff < 2678400) { return $diffdays.' days ago'; }
else if($timediff < 5184000) { return 'last month'; }
//else if($timediff < 31556926) { return $diffmonths.' months ago'; }
else if($timediff < 31556926) { return 'months ago'; }
else if($timediff < 63113852) { return 'last year'; }
else { return $diffyears.' years ago'; }
}
/**
* This class provides the templates for owncloud.
*/
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class OC_Template{
private $renderas; // Create a full page?
private $application; // template Application
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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 tempalte file (without suffix)
* @param $renderas = ""; produce a full page
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* @returns 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 = "" ){
// Global vars we need
global $SERVERROOT;
// Get the right template folder
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$template = "$SERVERROOT/core/templates/";
if( $app != "" ){
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// Check if the app is in the app folder
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if( file_exists( "$SERVERROOT/apps/$app/templates/" )){
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$template = "$SERVERROOT/apps/$app/templates/";
}
else{
$template = "$SERVERROOT/$app/templates/";
}
}
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// Templates have the ending .php
$template .= "$name.php";
// Set the private data
$this->renderas = $renderas;
$this->application = $app;
$this->template = $template;
$this->vars = array();
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$this->l10n = new OC_L10N($app);
}
/**
* @brief Assign variables
* @param $key key
* @param $value value
* @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 ){
$this->vars[$key] = $value;
return true;
}
/**
* @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 Proceeds the template
* @returns content
*
* This function proceeds the template. If $this->renderas is set, it will
* will produce a full page.
*/
public function fetchPage()
{
// global Data we need
global $WEBROOT;
global $SERVERROOT;
$data = $this->_fetch();
if( $this->renderas )
{
// Decide which page we show
if( $this->renderas == "user" )
{
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$page = new OC_Template( "core", "layout.user" );
$search=new OC_Template( 'core', 'part.searchbox');
$search->assign('searchurl',OC_Helper::linkTo( 'search', 'index.php' ));
$page->assign('searchbox', $search->fetchPage());
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// Add navigation entry
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$page->assign( "navigation", OC_App::getNavigation());
}
elseif( $this->renderas == "admin" )
{
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$page = new OC_Template( "core", "layout.admin" );
$search=new OC_Template( 'core', 'part.searchbox');
$search->assign('searchurl',OC_Helper::linkTo( 'search', 'index.php' ));
$page->assign('searchbox', $search->fetchPage());
// Add menu data
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if( OC_Group::inGroup( $_SESSION["user_id"], "admin" )){
$page->assign( "adminnavigation", OC_App::getAdminNavigation());
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}
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$page->assign( "settingsnavigation", OC_App::getSettingsNavigation());
}
else
{
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$page = new OC_Template( "core", "layout.guest" );
}
// Add the css and js files
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foreach(OC_Util::$scripts as $script){
if(is_file("$SERVERROOT/apps/$script.js" )){
$page->append( "jsfiles", "$WEBROOT/apps/$script.js" );
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}
elseif(is_file("$SERVERROOT/$script.js" )){
$page->append( "jsfiles", "$WEBROOT/$script.js" );
}
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else{
$page->append( "jsfiles", "$WEBROOT/core/$script.js" );
}
}
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foreach(OC_Util::$styles as $style){
if(is_file("$SERVERROOT/apps/$style.css" )){
$page->append( "cssfiles", "$WEBROOT/apps/$style.css" );
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}
elseif(is_file("$SERVERROOT/$style.css" )){
$page->append( "cssfiles", "$WEBROOT/$style.css" );
}
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else{
$page->append( "cssfiles", "$WEBROOT/core/$style.css" );
}
}
// Add custom headers
$page->assign('headers',$this->headers);
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foreach(OC_Util::$headers as $header){
$page->append('headers',$header);
}
// Add css files and js files
$page->assign( "content", $data );
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
$_ = $this->vars;
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$l = $this->l10n;
// Execute the template
ob_start();
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include( $this->template ); // <-- we have to use include because we pass $_!
$data = ob_get_contents();
ob_end_clean();
// return the 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, $parameters = array() ){
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$content = new OC_Template( $application, $name, "user" );
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foreach( $parameters as $key => $value ){
$content->assign( $key, $value );
}
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, $parameters = array() ){
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$content = new OC_Template( $application, $name, "admin" );
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foreach( $parameters as $key => $value ){
$content->assign( $key, $value );
}
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, $parameters = array() ){
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$content = new OC_Template( $application, $name, "guest" );
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foreach( $parameters as $key => $value ){
$content->assign( $key, $value );
}
return $content->printPage();
}
}