500 lines
15 KiB
PHP
500 lines
15 KiB
PHP
<?php
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/**
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* ownCloud
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*
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* @author Frank Karlitschek
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* @author Jakob Sack
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* @copyright 2012 Frank Karlitschek frank@owncloud.org
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU AFFERO GENERAL PUBLIC LICENSE for more details.
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*
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* You should have received a copy of the GNU Affero General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/**
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* Prints an XSS escaped string
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* @param string $string the string which will be escaped and printed
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*/
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function p($string) {
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print(OC_Util::sanitizeHTML($string));
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}
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/**
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* Prints an unescaped string
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* @param string $string the string which will be printed as it is
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*/
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function print_unescaped($string) {
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print($string);
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}
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/**
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* @brief make OC_Helper::linkTo available as a simple function
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* @param string $app app
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* @param string $file file
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* @param array $args array with param=>value, will be appended to the returned url
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* @return string link to the file
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*
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* For further information have a look at OC_Helper::linkTo
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*/
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function link_to( $app, $file, $args = array() ) {
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return OC_Helper::linkTo( $app, $file, $args );
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}
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/**
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* @brief make OC_Helper::imagePath available as a simple function
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* @param string $app app
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* @param string $image image
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* @return string link to the image
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*
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* For further information have a look at OC_Helper::imagePath
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*/
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function image_path( $app, $image ) {
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return OC_Helper::imagePath( $app, $image );
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}
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/**
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* @brief make OC_Helper::mimetypeIcon available as a simple function
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* @param string $mimetype mimetype
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* @return string link to the image
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*
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* For further information have a look at OC_Helper::mimetypeIcon
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*/
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function mimetype_icon( $mimetype ) {
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return OC_Helper::mimetypeIcon( $mimetype );
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}
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/**
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* @brief make OC_Helper::humanFileSize available as a simple function
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* @param int $bytes size in bytes
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* @return string size as string
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*
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* For further information have a look at OC_Helper::humanFileSize
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*/
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function human_file_size( $bytes ) {
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return OC_Helper::humanFileSize( $bytes );
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}
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function simple_file_size($bytes) {
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$mbytes = round($bytes/(1024*1024), 1);
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if($bytes == 0) { return '0'; }
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else if($mbytes < 0.1) { return '< 0.1'; }
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else if($mbytes > 1000) { return '> 1000'; }
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else { return number_format($mbytes, 1); }
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}
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function relative_modified_date($timestamp) {
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$l=OC_L10N::get('lib');
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$timediff = time() - $timestamp;
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$diffminutes = round($timediff/60);
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$diffhours = round($diffminutes/60);
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$diffdays = round($diffhours/24);
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$diffmonths = round($diffdays/31);
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if($timediff < 60) { return $l->t('seconds ago'); }
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else if($timediff < 120) { return $l->t('1 minute ago'); }
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else if($timediff < 3600) { return $l->t('%d minutes ago', $diffminutes); }
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else if($timediff < 7200) { return '1 hour ago'; }
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else if($timediff < 86400) { return $diffhours.' hours ago'; }
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else if((date('G')-$diffhours) > 0) { return $l->t('today'); }
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else if((date('G')-$diffhours) > -24) { return $l->t('yesterday'); }
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else if($timediff < 2678400) { return $l->t('%d days ago', $diffdays); }
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else if($timediff < 5184000) { return $l->t('last month'); }
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else if((date('n')-$diffmonths) > 0) { return $l->t('months ago'); }
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else if($timediff < 63113852) { return $l->t('last year'); }
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else { return $l->t('years ago'); }
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}
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function html_select_options($options, $selected, $params=array()) {
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if (!is_array($selected)) {
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$selected=array($selected);
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}
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if (isset($params['combine']) && $params['combine']) {
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$options = array_combine($options, $options);
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}
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$value_name = $label_name = false;
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if (isset($params['value'])) {
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$value_name = $params['value'];
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}
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if (isset($params['label'])) {
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$label_name = $params['label'];
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}
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$html = '';
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foreach($options as $value => $label) {
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if ($value_name && is_array($label)) {
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$value = $label[$value_name];
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}
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if ($label_name && is_array($label)) {
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$label = $label[$label_name];
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}
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$select = in_array($value, $selected) ? ' selected="selected"' : '';
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$html .= '<option value="' . $value . '"' . $select . '>' . $label . '</option>'."\n";
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}
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return $html;
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}
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/**
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* This class provides the templates for owncloud.
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*/
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class OC_Template{
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private $renderas; // Create a full page?
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private $application; // template Application
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private $vars; // Vars
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private $template; // The path to the template
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private $l10n; // The l10n-Object
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private $headers=array(); //custom headers
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/**
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* @brief Constructor
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* @param string $app app providing the template
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* @param string $file name of the template file (without suffix)
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* @param string $renderas = ""; produce a full page
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* @return OC_Template object
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*
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* This function creates an OC_Template object.
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*
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* If $renderas is set, OC_Template will try to produce a full page in the
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* according layout. For now, renderas can be set to "guest", "user" or
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* "admin".
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*/
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public function __construct( $app, $name, $renderas = "" ) {
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// Set the private data
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$this->renderas = $renderas;
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$this->application = $app;
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$this->vars = array();
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$this->vars['requesttoken'] = OC_Util::callRegister();
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$parts = explode('/', $app); // fix translation when app is something like core/lostpassword
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$this->l10n = OC_L10N::get($parts[0]);
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// Some headers to enhance security
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header('X-Frame-Options: Sameorigin');
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header('X-XSS-Protection: 1; mode=block');
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header('X-Content-Type-Options: nosniff');
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$this->findTemplate($name);
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}
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/**
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* autodetect the formfactor of the used device
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* default -> the normal desktop browser interface
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* mobile -> interface for smartphones
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* tablet -> interface for tablets
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* standalone -> the default interface but without header, footer and
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* sidebar, just the application. Useful to use just a specific
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* app on the desktop in a standalone window.
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*/
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public static function detectFormfactor() {
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// please add more useragent strings for other devices
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if(isset($_SERVER['HTTP_USER_AGENT'])) {
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if(stripos($_SERVER['HTTP_USER_AGENT'], 'ipad')>0) {
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$mode='tablet';
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}elseif(stripos($_SERVER['HTTP_USER_AGENT'], 'iphone')>0) {
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$mode='mobile';
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}elseif((stripos($_SERVER['HTTP_USER_AGENT'], 'N9')>0) and (stripos($_SERVER['HTTP_USER_AGENT'], 'nokia')>0)) {
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$mode='mobile';
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}else{
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$mode='default';
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}
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}else{
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$mode='default';
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}
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return($mode);
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}
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/**
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* @brief Returns the formfactor extension for current formfactor
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*/
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static public function getFormFactorExtension()
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{
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// if the formfactor is not yet autodetected do the
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// autodetection now. For possible formfactors check the
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// detectFormfactor documentation
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if(!isset($_SESSION['formfactor'])) {
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$_SESSION['formfactor'] = self::detectFormfactor();
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}
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// allow manual override via GET parameter
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if(isset($_GET['formfactor'])) {
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$_SESSION['formfactor']=$_GET['formfactor'];
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}
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$formfactor=$_SESSION['formfactor'];
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if($formfactor=='default') {
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$fext='';
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}elseif($formfactor=='mobile') {
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$fext='.mobile';
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}elseif($formfactor=='tablet') {
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$fext='.tablet';
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}elseif($formfactor=='standalone') {
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$fext='.standalone';
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}else{
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$fext='';
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}
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return $fext;
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}
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/**
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* @brief find the template with the given name
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* @param string $name of the template file (without suffix)
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*
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* Will select the template file for the selected theme and formfactor.
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* Checking all the possible locations.
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*/
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protected function findTemplate($name)
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{
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// Read the selected theme from the config file
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$theme=OC_Config::getValue( "theme" );
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// Read the detected formfactor and use the right file name.
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$fext = self::getFormFactorExtension();
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$app = $this->application;
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// Check if it is a app template or not.
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if( $app != "" ) {
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// Check if the app is in the app folder or in the root
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if( file_exists(OC_App::getAppPath($app)."/templates/" )) {
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// Check if the template is overwritten by the selected theme
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if ($this->checkPathForTemplate(OC::$SERVERROOT."/themes/$theme/apps/$app/templates/", $name, $fext)) {
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}elseif ($this->checkPathForTemplate(OC_App::getAppPath($app)."/templates/", $name, $fext)) {
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}
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}else{
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// Check if the template is overwritten by the selected theme
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if ($this->checkPathForTemplate(OC::$SERVERROOT."/themes/$theme/$app/templates/", $name, $fext)) {
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}elseif ($this->checkPathForTemplate(OC::$SERVERROOT."/$app/templates/", $name, $fext)) {
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}else{
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echo('template not found: template:'.$name.' formfactor:'.$fext.' webroot:'.OC::$WEBROOT.' serverroot:'.OC::$SERVERROOT);
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die();
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}
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}
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}else{
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// Check if the template is overwritten by the selected theme
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if ($this->checkPathForTemplate(OC::$SERVERROOT."/themes/$theme/core/templates/", $name, $fext)) {
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} elseif ($this->checkPathForTemplate(OC::$SERVERROOT."/core/templates/", $name, $fext)) {
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}else{
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echo('template not found: template:'.$name.' formfactor:'.$fext.' webroot:'.OC::$WEBROOT.' serverroot:'.OC::$SERVERROOT);
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die();
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}
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}
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}
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/**
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* @brief check Path For Template with and without $fext
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* @param string $path to check
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* @param string $name of the template file (without suffix)
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* @param string $fext formfactor extension
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* @return bool true when found
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*
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* Will set $this->template and $this->path if there is a template at
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* the specific $path
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*/
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protected function checkPathForTemplate($path, $name, $fext)
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{
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if ($name =='') return false;
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$template = null;
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if( is_file( $path.$name.$fext.'.php' )) {
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$template = $path.$name.$fext.'.php';
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}elseif( is_file( $path.$name.'.php' )) {
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$template = $path.$name.'.php';
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}
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if ($template) {
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$this->template = $template;
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$this->path = $path;
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return true;
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}
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return false;
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}
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/**
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* @brief Assign variables
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* @param string $key key
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* @param string $value value
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* @param bool $sanitizeHTML false, if data shouldn't get passed through htmlentities
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* @return bool
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*
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* This function assigns a variable. It can be accessed via $_[$key] in
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* the template.
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*
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* If the key existed before, it will be overwritten
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*/
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public function assign( $key, $value, $sanitizeHTML=true ) {
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if($sanitizeHTML == true) $value=OC_Util::sanitizeHTML($value);
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$this->vars[$key] = $value;
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return true;
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}
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/**
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* @brief Appends a variable
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* @param string $key key
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* @param string $value value
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* @return bool
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*
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* This function assigns a variable in an array context. If the key already
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* exists, the value will be appended. It can be accessed via
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* $_[$key][$position] in the template.
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*/
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public function append( $key, $value ) {
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if( array_key_exists( $key, $this->vars )) {
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$this->vars[$key][] = $value;
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}
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else{
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$this->vars[$key] = array( $value );
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}
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}
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/**
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* @brief Add a custom element to the header
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* @param string $tag tag name of the element
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* @param array $attributes array of attrobutes for the element
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* @param string $text the text content for the element
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*/
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public function addHeader( $tag, $attributes, $text='') {
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$this->headers[]=array('tag'=>$tag,'attributes'=>$attributes, 'text'=>$text);
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}
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/**
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* @brief Prints the proceeded template
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* @return bool
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*
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* This function proceeds the template and prints its output.
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*/
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public function printPage() {
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$data = $this->fetchPage();
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if( $data === false ) {
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return false;
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}
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else{
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print $data;
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return true;
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}
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}
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/**
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* @brief Proceeds the template
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* @return bool
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*
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* This function proceeds the template. If $this->renderas is set, it
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* will produce a full page.
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*/
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public function fetchPage() {
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$data = $this->_fetch();
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if( $this->renderas ) {
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$page = new OC_TemplateLayout($this->renderas);
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if($this->renderas == 'user') {
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$page->assign('requesttoken', $this->vars['requesttoken']);
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}
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// Add custom headers
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$page->assign('headers', $this->headers, false);
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foreach(OC_Util::$headers as $header) {
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$page->append('headers', $header);
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}
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$page->assign( "content", $data, false );
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return $page->fetchPage();
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}
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else{
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return $data;
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}
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}
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/**
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* @brief doing the actual work
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* @return string content
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*
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* Includes the template file, fetches its output
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*/
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private function _fetch() {
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// Register the variables
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$_ = $this->vars;
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$l = $this->l10n;
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// Execute the template
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ob_start();
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include $this->template; // <-- we have to use include because we pass $_!
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$data = ob_get_contents();
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@ob_end_clean();
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// return the data
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return $data;
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}
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/**
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* @brief Include template
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* @return string returns content of included template
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*
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* Includes another template. use <?php echo $this->inc('template'); ?> to
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* do this.
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*/
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public function inc( $file, $additionalparams = null ) {
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$_ = $this->vars;
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$l = $this->l10n;
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if( !is_null($additionalparams)) {
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$_ = array_merge( $additionalparams, $this->vars );
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}
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// Include
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ob_start();
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include $this->path.$file.'.php';
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$data = ob_get_contents();
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@ob_end_clean();
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// Return data
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return $data;
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}
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/**
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* @brief Shortcut to print a simple page for users
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* @param string $application The application we render the template for
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* @param string $name Name of the template
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* @param array $parameters Parameters for the template
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* @return bool
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*/
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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, false );
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}
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print $content->printPage();
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}
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/**
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* @brief Shortcut to print a simple page for admins
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* @param string $application The application we render the template for
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* @param string $name Name of the template
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* @param array $parameters Parameters for the template
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* @return bool
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*/
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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, false );
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}
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return $content->printPage();
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}
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/**
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* @brief Shortcut to print a simple page for guests
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* @param string $application The application we render the template for
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* @param string $name Name of the template
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* @param string $parameters Parameters for the template
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* @return bool
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*/
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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, false );
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}
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return $content->printPage();
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}
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}
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