Refactor template engine code
- Convert ITemplateEngine interface to abstract class - Remove dependency to App in FriendicaSmarty and FriendicaSmartyEngine - Normalize replaceMacro parameter behavior using Smarty template string prefixes - Remove obsolete FriendicaSmarty->parsed method - Update unused Smarty directory paths
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75a0b80888
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5 changed files with 97 additions and 72 deletions
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@ -23,8 +23,7 @@ namespace Friendica\Core;
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use Exception;
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use Friendica\DI;
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use Friendica\Render\FriendicaSmarty;
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use Friendica\Render\ITemplateEngine;
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use Friendica\Render\TemplateEngine;
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/**
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* This class handles Renderer related functions.
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@ -66,25 +65,23 @@ class Renderer
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];
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/**
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* This is our template processor
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* Returns the rendered template output from the template string and variables
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*
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* @param string|FriendicaSmarty $s The string requiring macro substitution or an instance of FriendicaSmarty
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* @param array $vars Key value pairs (search => replace)
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*
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* @return string substituted string
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* @throws Exception
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* @param string $template
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* @param array $vars
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* @return string
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*/
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public static function replaceMacros($s, array $vars = [])
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public static function replaceMacros(string $template, array $vars)
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{
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$stamp1 = microtime(true);
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// pass $baseurl to all templates if it isn't set
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$vars = array_merge(['$baseurl' => DI::baseUrl()->get()], $vars);
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$vars = array_merge(['$baseurl' => DI::baseUrl()->get(), '$APP' => DI::app()], $vars);
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$t = self::getTemplateEngine();
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try {
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$output = $t->replaceMacros($s, $vars);
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$output = $t->replaceMacros($template, $vars);
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} catch (Exception $e) {
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echo "<pre><b>" . __FUNCTION__ . "</b>: " . $e->getMessage() . "</pre>";
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exit();
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@ -98,19 +95,19 @@ class Renderer
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/**
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* Load a given template $s
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*
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* @param string $s Template to load.
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* @param string $file Template to load.
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* @param string $subDir Subdirectory (Optional)
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*
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* @return string template.
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* @throws Exception
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*/
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public static function getMarkupTemplate($s, $subDir = '')
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public static function getMarkupTemplate($file, $subDir = '')
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{
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$stamp1 = microtime(true);
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$t = self::getTemplateEngine();
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try {
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$template = $t->getTemplateFile($s, $subDir);
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$template = $t->getTemplateFile($file, $subDir);
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} catch (Exception $e) {
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echo "<pre><b>" . __FUNCTION__ . "</b>: " . $e->getMessage() . "</pre>";
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exit();
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@ -130,8 +127,7 @@ class Renderer
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{
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$v = get_class_vars($class);
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if (!empty($v['name']))
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{
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if (!empty($v['name'])) {
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$name = $v['name'];
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self::$template_engines[$name] = $class;
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} else {
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@ -146,7 +142,7 @@ class Renderer
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* If $name is not defined, return engine defined by theme,
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* or default
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*
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* @return ITemplateEngine Template Engine instance
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* @return TemplateEngine Template Engine instance
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*/
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public static function getTemplateEngine()
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{
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@ -156,8 +152,9 @@ class Renderer
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if (isset(self::$template_engine_instance[$template_engine])) {
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return self::$template_engine_instance[$template_engine];
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} else {
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$a = DI::app();
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$class = self::$template_engines[$template_engine];
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$obj = new $class;
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$obj = new $class($a->getCurrentTheme(), $a->theme_info);
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self::$template_engine_instance[$template_engine] = $obj;
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return $obj;
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}
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@ -21,7 +21,6 @@
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namespace Friendica\Render;
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use Friendica\DI;
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use Smarty;
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use Friendica\Core\Renderer;
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@ -34,26 +33,23 @@ class FriendicaSmarty extends Smarty
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public $filename;
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function __construct()
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function __construct(string $theme, array $theme_info)
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{
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parent::__construct();
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$a = DI::app();
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$theme = $a->getCurrentTheme();
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// setTemplateDir can be set to an array, which Smarty will parse in order.
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// The order is thus very important here
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$template_dirs = ['theme' => "view/theme/$theme/" . self::SMARTY3_TEMPLATE_FOLDER . "/"];
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if (!empty($a->theme_info['extends'])) {
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$template_dirs = $template_dirs + ['extends' => "view/theme/" . $a->theme_info["extends"] . "/" . self::SMARTY3_TEMPLATE_FOLDER . "/"];
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if (!empty($theme_info['extends'])) {
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$template_dirs = $template_dirs + ['extends' => "view/theme/" . $theme_info["extends"] . "/" . self::SMARTY3_TEMPLATE_FOLDER . "/"];
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}
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$template_dirs = $template_dirs + ['base' => "view/" . self::SMARTY3_TEMPLATE_FOLDER . "/"];
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$this->setTemplateDir($template_dirs);
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$this->setCompileDir('view/smarty3/compiled/');
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$this->setConfigDir('view/smarty3/config/');
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$this->setCacheDir('view/smarty3/cache/');
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$this->setConfigDir('view/smarty3/');
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$this->setCacheDir('view/smarty3/');
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$this->left_delimiter = Renderer::getTemplateLeftDelimiter('smarty3');
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$this->right_delimiter = Renderer::getTemplateRightDelimiter('smarty3');
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@ -63,13 +59,4 @@ class FriendicaSmarty extends Smarty
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// Don't report errors so verbosely
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$this->error_reporting = E_ALL & ~E_NOTICE;
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}
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function parsed($template = '')
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{
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if ($template) {
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return $this->fetch('string:' . $template);
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}
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return $this->fetch('file:' . $this->filename);
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}
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}
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}
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@ -23,56 +23,69 @@ namespace Friendica\Render;
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use Friendica\Core\Hook;
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use Friendica\DI;
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use Friendica\Util\Strings;
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/**
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* Smarty implementation of the Friendica template engine interface
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* Smarty implementation of the Friendica template abstraction
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*/
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class FriendicaSmartyEngine implements ITemplateEngine
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final class FriendicaSmartyEngine extends TemplateEngine
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{
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static $name = "smarty3";
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public function __construct()
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const FILE_PREFIX = 'file:';
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const STRING_PREFIX = 'string:';
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/** @var FriendicaSmarty */
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private $smarty;
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/**
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* @inheritDoc
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*/
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public function __construct(string $theme, array $theme_info)
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{
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if (!is_writable(__DIR__ . '/../../view/smarty3/')) {
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$this->theme = $theme;
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$this->theme_info = $theme_info;
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$this->smarty = new FriendicaSmarty($this->theme, $this->theme_info);
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if (!is_writable(DI::basePath() . '/view/smarty3')) {
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echo "<b>ERROR:</b> folder <tt>view/smarty3/</tt> must be writable by webserver.";
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exit();
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}
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}
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// ITemplateEngine interface
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public function replaceMacros($s, $r)
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/**
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* @inheritDoc
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*/
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public function replaceMacros(string $template, array $vars)
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{
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$template = '';
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if (gettype($s) === 'string') {
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$template = $s;
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$s = new FriendicaSmarty();
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if (!Strings::startsWith($template, self::FILE_PREFIX)) {
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$template = self::STRING_PREFIX . $template;
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}
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$r['$APP'] = DI::app();
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// "middleware": inject variables into templates
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$arr = [
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"template" => basename($s->filename),
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"vars" => $r
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'template' => basename($this->smarty->filename),
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'vars' => $vars
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];
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Hook::callAll("template_vars", $arr);
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$r = $arr['vars'];
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Hook::callAll('template_vars', $arr);
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$vars = $arr['vars'];
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foreach ($r as $key => $value) {
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foreach ($vars as $key => $value) {
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if ($key[0] === '$') {
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$key = substr($key, 1);
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}
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$s->assign($key, $value);
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$this->smarty->assign($key, $value);
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}
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return $s->parsed($template);
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return $this->smarty->fetch($template);
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}
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public function getTemplateFile($file, $subDir = '')
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/**
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* @inheritDoc
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*/
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public function getTemplateFile(string $file, string $subDir = '')
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{
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$a = DI::app();
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$template = new FriendicaSmarty();
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// Make sure $root ends with a slash /
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if ($subDir !== '' && substr($subDir, -1, 1) !== '/') {
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$subDir = $subDir . '/';
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@ -80,21 +93,20 @@ class FriendicaSmartyEngine implements ITemplateEngine
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$root = DI::basePath() . '/' . $subDir;
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$theme = $a->getCurrentTheme();
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$filename = $template::SMARTY3_TEMPLATE_FOLDER . '/' . $file;
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$filename = $this->smarty::SMARTY3_TEMPLATE_FOLDER . '/' . $file;
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if (file_exists("{$root}view/theme/$theme/$filename")) {
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$template_file = "{$root}view/theme/$theme/$filename";
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} elseif (!empty($a->theme_info['extends']) && file_exists(sprintf('%sview/theme/%s}/%s', $root, $a->theme_info['extends'], $filename))) {
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$template_file = sprintf('%sview/theme/%s}/%s', $root, $a->theme_info['extends'], $filename);
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if (file_exists("{$root}view/theme/$this->theme/$filename")) {
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$template_file = "{$root}view/theme/$this->theme/$filename";
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} elseif (!empty($this->theme_info['extends']) && file_exists(sprintf('%sview/theme/%s}/%s', $root, $this->theme_info['extends'], $filename))) {
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$template_file = sprintf('%sview/theme/%s}/%s', $root, $this->theme_info['extends'], $filename);
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} elseif (file_exists("{$root}/$filename")) {
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$template_file = "{$root}/$filename";
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} else {
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$template_file = "{$root}view/$filename";
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}
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$template->filename = $template_file;
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$this->smarty->filename = $template_file;
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return $template;
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return self::FILE_PREFIX . $template_file;
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}
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}
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@ -24,8 +24,37 @@ namespace Friendica\Render;
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/**
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* Interface for template engines
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*/
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interface ITemplateEngine
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abstract class TemplateEngine
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{
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public function replaceMacros($s, $v);
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public function getTemplateFile($file, $subDir = '');
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/** @var string */
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static $name;
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/** @var string */
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protected $theme;
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/** @var array */
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protected $theme_info;
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/**
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* @param string $theme The current theme name
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* @param array $theme_info The current theme info array
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*/
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abstract public function __construct(string $theme, array $theme_info);
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/**
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* Returns the rendered template output from the template string and variables
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*
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* @param string $template
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* @param array $vars
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* @return string
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*/
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abstract public function replaceMacros(string $template, array $vars);
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/**
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* Returns the template string from a file path and an optional sub-directory from the project root
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*
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* @param string $file
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* @param string $subDir
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* @return mixed
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*/
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abstract public function getTemplateFile(string $file, string $subDir = '');
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}
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@ -108,7 +108,7 @@ trait AppMockTrait
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->andReturn($this->configMock);
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$this->app
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->shouldReceive('getTemplateEngine')
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->andReturn(new FriendicaSmartyEngine());
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->andReturn(new FriendicaSmartyEngine('frio', []));
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$this->app
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->shouldReceive('getCurrentTheme')
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->andReturn('Smarty3');
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