Files
sysPass/lib/SP/Mvc/View/Template.php
Rubén D 41703b50f9 * [MOD] Strict type checking (WIP)
Signed-off-by: Rubén D <nuxsmin@syspass.org>
2020-12-20 14:24:42 +01:00

560 lines
14 KiB
PHP

<?php
/*
* sysPass
*
* @author nuxsmin
* @link https://syspass.org
* @copyright 2012-2020, Rubén Domínguez nuxsmin@$syspass.org
*
* This file is part of sysPass.
*
* sysPass is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* sysPass 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 sysPass. If not, see <http://www.gnu.org/licenses/>.
*/
namespace SP\Mvc\View;
defined('APP_ROOT') || die();
use SP\Bootstrap;
use SP\Core\Exceptions\FileNotFoundException;
use SP\Core\UI\ThemeInterface;
use SP\Http\Uri;
/**
* Class Template
*
* A very basic template engine...
*
* Idea original de http://www.sitepoint.com/author/agervasio/
* publicada en http://www.sitepoint.com/flexible-view-manipulation-1/
*
*/
final class Template
{
const TEMPLATE_EXTENSION = '.inc';
const PARTIALS_DIR = '_partials';
const LAYOUTS_DIR = '_layouts';
/**
* @var ThemeInterface
*/
protected $theme;
/**
* @var array List of templates to load into the view
*/
private $templates = [];
/**
* @var TemplateVarCollection Template's variables collection
*/
private $vars;
/**
* @var string Base path for imcluding templates
*/
private $base;
/**
* @var array
*/
private $contentTemplates = [];
/**
* @var bool
*/
private $upgraded = false;
/**
* @param ThemeInterface $theme
*/
public function __construct(ThemeInterface $theme)
{
$this->theme = $theme;
$this->vars = new TemplateVarCollection();
}
/**
* Añadir una nueva plantilla al array de plantillas de la clase
*
* @param string $name Con el nombre del archivo de plantilla
* @param string|null $base Directorio base para la plantilla
*
* @return bool
*/
public function addContentTemplate(string $name, ?string $base = null)
{
try {
$template = $this->checkTemplate($name, $base);
$this->setContentTemplate($template, $name);
} catch (FileNotFoundException $e) {
return '';
}
return $template;
}
/**
* Comprobar si un archivo de plantilla existe y se puede leer
*
* @param string $template Con el nombre del archivo
* @param string|null $base Directorio base para la plantilla
*
* @return string La ruta al archivo de la plantilla
*
* @throws FileNotFoundException
*/
private function checkTemplate(string $template, ?string $base = null): string
{
$base = null !== $base ? $base : (null !== $this->base ? $this->base : null);
if ($base === null) {
$templateFile = $this->theme->getViewsPath() . DIRECTORY_SEPARATOR . $template . self::TEMPLATE_EXTENSION;
} elseif (strpos($base, APP_ROOT) === 0
&& is_dir($base)
) {
$templateFile = $base . DIRECTORY_SEPARATOR . $template . self::TEMPLATE_EXTENSION;
} else {
$templateFile = $this->theme->getViewsPath() . DIRECTORY_SEPARATOR . $base . DIRECTORY_SEPARATOR . $template . self::TEMPLATE_EXTENSION;
}
if (!is_readable($templateFile)) {
$msg = sprintf(__('Unable to retrieve "%s" template: %s'), $templateFile, $template);
logger($msg);
throw new FileNotFoundException($msg);
}
return $templateFile;
}
/**
* Añadir un nuevo archivo de plantilla al array de plantillas de contenido
*
* @param string $file Con el nombre del archivo
* @param string $name Nombre de la plantilla
*/
private function setContentTemplate(string $file, string $name)
{
$this->contentTemplates[$name] = $file;
}
/**
* Removes a template from the stack
*
* @param string $name
*
* @return Template
*/
public function removeTemplate(string $name): Template
{
unset($this->templates[$name]);
return $this;
}
/**
* Removes a template from the stack
*
* @param string $name
*
* @return Template
*/
public function removeContentTemplate(string $name): Template
{
unset($this->contentTemplates[$name]);
return $this;
}
/**
* Removes a template from the stack
*
* @param string $src Source template
* @param string $dst Destination template
* @param string $base
*
* @return mixed|string
*/
public function replaceTemplate(string $src, string $dst, string $base)
{
try {
if (isset($this->contentTemplates[$dst])) {
$this->contentTemplates[$dst] = $this->checkTemplate($src, $base);
}
} catch (FileNotFoundException $e) {
return '';
}
return $this->contentTemplates[$dst];
}
/**
* Add partial template
*
* @param string $partial
*/
public function addPartial(string $partial)
{
$this->addTemplate($partial, self::PARTIALS_DIR);
}
/**
* Añadir una nueva plantilla al array de plantillas de la clase
*
* @param string $name Con el nombre del archivo de plantilla
* @param string|null $base Directorio base para la plantilla
*
* @return bool
*/
public function addTemplate(string $name, ?string $base = null)
{
try {
$template = $this->checkTemplate($name, $base);
$this->setTemplate($template, $name);
} catch (FileNotFoundException $e) {
return '';
}
return $template;
}
/**
* Añadir un nuevo archivo de plantilla al array de plantillas
*
* @param string $file Con el nombre del archivo
* @param string $name Nombre de la plantilla
*/
private function setTemplate(string $file, string $name)
{
$this->templates[$name] = $file;
}
/**
* Añadir una nueva plantilla dentro de una plantilla
*
* @param string $file Con el nombre del archivo de plantilla
*
* @return bool
*/
public function includePartial(string $file)
{
return $this->includeTemplate($file, self::PARTIALS_DIR);
}
/**
* Añadir una nueva plantilla dentro de una plantilla
*
* @param string $file Con el nombre del archivo de plantilla
* @param string|null $base Directorio base para la plantilla
*
* @return bool
*/
public function includeTemplate(string $file, ?string $base = null)
{
try {
return $this->checkTemplate($file, $base);
} catch (FileNotFoundException $e) {
return false;
}
}
/**
* Overloading para controlar la devolución de atributos dinámicos.
*
* @param string $name Nombre del atributo
*
* @return null
*/
public function __get(string $name)
{
return $this->get($name);
}
/**
* Overloading para añadir nuevas variables en al array de variables dela plantilla
* pasadas como atributos dinámicos de la clase
*
* @param string $name Nombre del atributo
* @param string $value Valor del atributo
*/
public function __set(string $name, string $value)
{
$this->vars->set($name, $value);
}
/**
* Returns a variable value
*
* @param string $name
*
* @return mixed
*/
public function get(string $name)
{
if (!$this->vars->exists($name)) {
logger(sprintf(__('Unable to retrieve "%s" variable'), $name), 'ERROR');
return null;
// throw new InvalidArgumentException(sprintf(__('Unable to retrieve "%s" variable'), $name));
}
return $this->vars->get($name);
}
/**
* Overloading para comprobar si el atributo solicitado está declarado como variable
* en el array de variables de la plantilla.
*
* @param string $name Nombre del atributo
*
* @return bool
*/
public function __isset(string $name): bool
{
return $this->vars->exists($name);
}
/**
* Overloading para eliminar una variable del array de variables de la plantilla pasado como
* atributo dinámico de la clase
*
* @param string $name Nombre del atributo
*
* @return $this
*/
public function __unset(string $name): Template
{
if (!$this->vars->exists($name)) {
logger(sprintf(__('Unable to unset "%s" variable'), $name));
// throw new InvalidArgumentException(sprintf(__('Unable to unset "%s" variable'), $name));
return $this;
}
$this->vars->remove($name);
return $this;
}
/**
* Mostrar la plantilla solicitada.
* La salida se almacena en buffer y se devuelve el contenido
*
* @return string Con el contenido del buffer de salida
* @throws FileNotFoundException
*/
public function render(): string
{
if (empty($this->templates)) {
throw new FileNotFoundException(__('Template does not contain files'));
}
$icons = $this->theme->getIcons();
$configData = $this->vars->get('configData');
// An anonymous proxy function for handling views variables
$_getvar = function ($key, $default = null) {
if (DEBUG && !$this->vars->exists($key)) {
logger(sprintf(__('Unable to retrieve "%s" variable'), $key), 'WARN');
return $default;
}
return $this->vars->get($key, $default);
};
$_getRoute = function ($path) use ($configData) {
$baseUrl = ($configData->getApplicationUrl() ?: Bootstrap::$WEBURI) . Bootstrap::$SUBURI;
$uri = new Uri($baseUrl);
$uri->addParam('r', $path);
return $uri->getUri();
};
ob_start();
// Añadimos las plantillas
foreach ($this->templates as $template) {
include_once $template;
}
return ob_get_clean();
}
/**
* Anexar el valor de la variable al array de la misma en el array de variables
*
* @param string $name nombre de la variable
* @param mixed $value valor de la variable
* @param string|null $scope string ámbito de la variable
* @param int|null $index string índice del array
*/
public function append(string $name, $value, ?string $scope = null, int $index = null)
{
if (null !== $scope) {
$name = $scope . '_' . $name;
}
$var = $this->vars->get($name, []);
if (null === $index) {
$var[] = $value;
} else {
$var[$index] = $value;
}
$this->vars->set($name, $var);
}
/**
* Reset de las plantillas añadidas
*/
public function resetTemplates(): Template
{
$this->templates = [];
return $this;
}
/**
* Reset de las plantillas añadidas
*/
public function resetContentTemplates(): Template
{
$this->contentTemplates = [];
return $this;
}
/**
* Reset de las plantillas añadidas
*/
public function resetVariables()
{
$this->vars = [];
}
/**
* @return string
*/
public function getBase(): string
{
return $this->base;
}
/**
* @param string $base
*/
public function setBase(string $base)
{
$this->base = $base;
}
/**
* @return ThemeInterface
*/
public function getTheme(): ThemeInterface
{
return $this->theme;
}
/**
* Dumps current stored vars
*/
public function dumpVars()
{
logger($this->vars);
}
/**
* @return array
*/
public function getContentTemplates(): array
{
return $this->contentTemplates;
}
/**
* @return bool
*/
public function hasContentTemplates(): bool
{
return count($this->contentTemplates) > 0;
}
/**
* @return array
*/
public function getTemplates(): array
{
return $this->templates;
}
/**
* Assigns the current templates to contentTemplates
*
* @return $this
*/
public function upgrade(): Template
{
if (count($this->templates) > 0) {
$this->contentTemplates = $this->templates;
$this->templates = [];
$this->upgraded = true;
}
return $this;
}
/**
* Crear la variable y asignarle un valor en el array de variables
*
* @param string $name nombre de la variable
* @param mixed $value valor de la variable
* @param string|null $scope string ámbito de la variable
*/
public function assign(string $name, $value = '', ?string $scope = null)
{
if (null !== $scope) {
$name = $scope . '_' . $name;
}
$this->vars->set($name, $value);
}
/**
* @return bool
*/
public function isUpgraded(): bool
{
return $this->upgraded;
}
/**
* When an object is cloned, PHP 5 will perform a shallow copy of all of the object's properties.
* Any properties that are references to other variables, will remain references.
* Once the cloning is complete, if a __clone() method is defined,
* then the newly created object's __clone() method will be called, to allow any necessary properties that need to be changed.
* NOT CALLABLE DIRECTLY.
*
* @link https://php.net/manual/en/language.oop5.cloning.php
*/
public function __clone()
{
// Clone TemplateVarCollection to avoid unwanted object references
$this->vars = clone $this->vars;
}
}