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ldapsaisie/public_html/includes/class/class.LStemplate.php
Benjamin Renard 50ea12a81c Handle images URL via LSurl
2020-05-02 17:49:15 +02:00

444 lines
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PHP
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<?php
/*******************************************************************************
* Copyright (C) 2007 Easter-eggs
* http://ldapsaisie.labs.libre-entreprise.org
*
* Author: See AUTHORS file in top-level directory.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version 2
* 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
******************************************************************************/
/**
* Manage template
*
* This class is use to manage template in LdapSaisie.
*
* @author Benjamin Renard <brenard@easter-eggs.com>
*/
class LStemplate {
/**
* LStemplate configuration
*
* array(
* 'smarty_path' => '/path/to/Smarty.php',
* 'template_dir' => '/path/to/template/directory',
* 'image_dir' => '/path/to/image/directory',
* 'css_dir' => '/path/to/css/directory',
* 'compile_dir' => '/path/to/compile/directory',
* 'debug' => True,
* 'debug_smarty' => True
* )
*
**/
private static $config = array (
'smarty_path' => 'smarty/libs/Smarty.class.php',
'template_dir' => 'templates',
'image_dir' => 'images',
'css_dir' => 'css',
'compile_dir' => 'tmp',
'debug' => False,
'debug_smarty' => False
);
// Smarty object
public static $_smarty = NULL;
// Smarty version
private static $_smarty_version = NULL;
// Array of directories
private static $directories = array(
'local',
LS_THEME
);
// Registered events
private static $_events = array();
/**
* Start LStemplate
*
* Set configuration from parameter $config and initialize
* Smarty object.
*
* @param[in] $config array LStemplate configuration
*
* @retval boolean True on success, False instead
**/
public static function start($config) {
// Trigger starting event
self :: fireEvent('starting');
foreach ($config as $key => $value) {
self :: $config[$key] = $value;
}
if (LSsession :: includeFile(self :: $config['smarty_path'], true)) {
self :: $_smarty = new Smarty();
self :: $_smarty -> template_dir = self :: $config['template_dir'];
if ( ! is_writable(self :: $config['compile_dir']) ) {
LSlog :: fatal(getFData(_("LStemplate : compile directory is not writable (dir : %{dir})"), self :: $config['compile_dir']));
}
self :: $_smarty -> compile_dir = self :: $config['compile_dir'];
if (self :: $config['debug']) {
self :: $_smarty -> caching = 0;
// cache files are always regenerated
self :: $_smarty -> force_compile = TRUE;
// recompile template if it is changed
self :: $_smarty -> compile_check = TRUE;
if (self :: $config['debug_smarty']) {
// debug smarty
self :: $_smarty -> debugging = true;
}
}
if (method_exists(self :: $_smarty,'register_function')) {
self :: $_smarty_version=2;
if (!LSsession :: loadLSclass('LStemplate_smarty2_support')) {
die(_("LStemplate : Can't load Smarty 2 support file"));
}
}
elseif (method_exists(self :: $_smarty,'registerPlugin')) {
self :: $_smarty_version=3;
if (!LSsession :: loadLSclass('LStemplate_smarty3_support')) {
die(_("LStemplate : Can't load Smarty 3 support file"));
}
}
else {
die(_("LStemplate : Smarty version not recognized."));
}
self :: registerFunction("getFData", "LStemplate_smarty_getFData");
self :: registerFunction("tr", "LStemplate_smarty_tr");
self :: registerFunction("img", "LStemplate_smarty_img");
self :: registerFunction("css", "LStemplate_smarty_css");
self :: registerFunction("uniqid", "LStemplate_smarty_uniqid");
// Trigger started event
self :: fireEvent('started');
return True;
}
else {
die(_("LStemplate : Can't load Smarty."));
return False;
}
}
/**
* Return the default directory path of files
*
* Return LS_THEME contanst value or 'default' if not defined
*
* @retval string The default directory path of files
**/
public static function getDefaultDir() {
if (defined('LS_THEME'))
return LS_THEME;
else
return 'default';
}
/**
* Return the path of the file to use
*
* @param[in] string $name The file name (eg: mail.png)
* @param[in] string $root_dir The root directory (eg: images)
* @param[in] string $default_dir The default directory (eg: default)
* @param[in] bool $with_nocache If true, include nocache URL param (default: false)
*
* @retval string The path of the file
**/
public static function getFilePath($file, $root_dir, $default_dir=null, $with_nocache=false) {
if ($default_dir === null)
$default_dir = self :: getDefaultDir();
$path = false;
foreach(self :: $directories as $dir) {
$path = $root_dir.'/'.$dir.'/'.$file;
if (file_exists($path)) {
break;
}
$path = false;
}
if (!$path) {
if (!$default_dir)
return;
$path = $root_dir.'/'.$default_dir.'/'.$file;
}
if ($with_nocache)
$path .= "?nocache=".self::getNoCacheFileValue($path);
return $path;
}
/**
* Return the path of the image file to use
*
* @param[in] string $image The image name (eg: mail)
* @param[in] bool $with_nocache If true, include nocache URL param (default: false)
*
* @retval string The path of the image file
**/
public static function getImagePath($image, $with_nocache=false) {
$exts=array('png','gif','jpg');
foreach($exts as $ext) {
$path = self :: getFilePath("$image.$ext", self :: $config['image_dir'], False, $with_nocache);
if ($path) return $path;
}
return self :: $config['image_dir']."/".self :: getDefaultDir()."/$image.png";
}
/**
* Return the path of the CSS file to use
*
* @param[in] string $css The CSS name (eg: main.css)
* @param[in] bool $with_nocache If true, include nocache URL param (default: false)
*
* @retval string The path of the CSS file
**/
public static function getCSSPath($css, $with_nocache=false) {
return self :: getFilePath($css, self :: $config['css_dir'], Null, $with_nocache);
}
/**
* Return the path of the Smarty template file to use
*
* @param[in] string $template The template name (eg: top.tpl)
* @param[in] bool $with_nocache If true, include nocache URL param (default: false)
*
* @retval string The path of the Smarty template file
**/
public static function getTemplatePath($template, $with_nocache=false) {
return self :: getFilePath($template, self :: $config['template_dir'], null, $with_nocache);
}
/**
* Return the nocache value of the specify file
*
* @param[in] string $file The file path
*
* @retval string The specified file's nocache value
**/
public static function getNoCacheFileValue($file) {
$stat = @stat($file);
if (is_array($stat) && isset($stat['mtime']))
return md5($stat['mtime']);
return md5(time());
}
/**
* Return the content of a Smarty template file.
*
* @param[in] string $template The template name (eg: top.tpl)
*
* @retval string The content of the Smarty template file
**/
public static function getTemplateSource($template) {
$tpl_path=self :: getTemplatePath($template);
if (!is_readable($tpl_path)) {
if (self :: $_smarty_version > 2) {
// No error return with Smarty3 and highter because it's call
// template name in lower first systematically
return '';
}
$tpl_path=self :: getTemplatePath('empty.tpl');
LSerror::addErrorCode('LStemplate_01',$template);
}
return implode('',file($tpl_path));
}
/**
* Return the timestamp of the last change of a Smarty
* template file.
*
* @param[in] string $template The template name (eg: top.tpl)
*
* @retval string The timestamp of the last change of the Smarty template file
**/
public static function getTemplateTimestamp($template) {
$tpl_path=self :: getTemplatePath($template);
if (is_file($tpl_path)) {
$time=filemtime($tpl_path);
if ($time)
return $time;
}
return NULL;
}
/**
* Assign template variable
*
* @param[in] string $name The variable name
* @param[in] mixed $value The variable value
*
* @retval void
**/
public static function assign($name,$value) {
return self :: $_smarty -> assign($name,$value);
}
/**
* Display a template
*
* @param[in] string $template The template name (eg: empty.tpl)
*
* @retval void
**/
public static function display($template) {
// Trigger displaying event
self :: fireEvent('displaying');
try {
self :: $_smarty -> display("ls:$template");
}
catch (Exception $e) {
LSlog :: exception($e, getFData(_("Smarty - An exception occured displaying template '%{template}'"), $template));
exit();
}
// Trigger displayed event
self :: fireEvent('displayed');
}
/**
* Fetch a template
*
* @param[in] string $template The template name (eg: empty.tpl)
*
* @retval string The template compiled
**/
public static function fetch($template) {
try {
return self :: $_smarty -> fetch("ls:$template");
}
catch (Exception $e) {
LSlog :: exception($e, getFData(_("Smarty - An exception occured fetching template '%{template}'"), $template), false);
}
}
/**
* Handle fatal error
*
* @param[in] $error string|null Error message (optional)
*
* @retval void
**/
public static function fatal_error($error=null) {
self :: $_smarty -> assign('fatal_error', $error);
self :: $_smarty -> display("ls:fatal_error.tpl");
exit();
}
/**
* Register a template function
*
* @param[in] string $name The function name in template
* @param[in] string $function_name The function name in PHP
*
* @retval void
*/
public static function registerFunction($name,$function_name) {
LStemplate_register_function($name,$function_name);
}
/**
* Registered an action on a specific event
*
* @param[in] $event string The event name
* @param[in] $callable callable The callable to run on event
* @param[in] $param mixed Paremeters that will be pass to the callable
*
* @retval void
*/
public static function addEvent($event,$callable,$param=NULL) {
self :: $_events[$event][] = array(
'callable' => $callable,
'param' => $param,
);
}
/**
* Run triggered actions on specific event
*
* @param[in] $event string Event name
*
* @retval boolean True if all triggered actions succefully runned, false otherwise
*/
public static function fireEvent($event) {
$return = true;
// Binding via addEvent
if (isset(self :: $_events[$event]) && is_array(self :: $_events[$event])) {
foreach (self :: $_events[$event] as $e) {
if (is_callable($e['callable'])) {
try {
call_user_func_array($e['callable'],array(&$e['param']));
}
catch(Exception $er) {
LSerror :: addErrorCode('LStemplate_03',array('callable' => getCallableName($e['callable']),'event' => $event));
$return = false;
}
}
else {
LSerror :: addErrorCode('LStemplate_02',array('callable' => getCallableName($e['callable']),'event' => $event));
$return = false;
}
}
}
return $return;
}
}
function LStemplate_smarty_getFData($params) {
extract($params);
echo getFData($format,$data,$meth=NULL);
}
function LStemplate_smarty_tr($params) {
extract($params);
echo __($msg);
}
function LStemplate_smarty_img($params) {
extract($params);
echo "image/$name";
}
function LStemplate_smarty_css($params) {
extract($params);
echo LStemplate :: getCSSPath($name, true);
}
function LStemplate_smarty_uniqid($params, &$smarty) {
if (!isset($params['var']))
$params['var'] = 'uniqid';
$smarty -> assign($params['var'], uniqid());
}
// Errors
LSerror :: defineError('LStemplate_01',
_("LStemplate : Template %{file} not found.")
);
LSerror :: defineError('LStemplate_02',
_("LStemplate : Fail to execute trigger %{callable} on event %{event} : is not callable.")
);
LSerror :: defineError('LStemplate_03',
_("LStemplate : Error during the execution of the trigger %{callable} on event %{event}.")
);
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