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Merge pull request #8657 from MrPetovan/bug/8653-catch-template-engine-errors 

Catch template engine errors
This commit is contained in:
Michael Vogel 2020-05-19 00:22:45 +02:00 committed by GitHub
parent 5746fbd121 8b05af176c
commit e315bc3eae
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GPG Key ID: 4AEE18F83AFDEB23
9 changed files with 201 additions and 114 deletions
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69
src/Core/Renderer.php
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@ -23,8 +23,8 @@ namespace Friendica\Core;
use Exception;
use Friendica\DI;
use Friendica\Render\FriendicaSmarty;
use Friendica\Render\ITemplateEngine;
use Friendica\Network\HTTPException\InternalServerErrorException;
use Friendica\Render\TemplateEngine;
/**
* This class handles Renderer related functions.
@ -66,28 +66,30 @@ class Renderer
];
/**
* This is our template processor
* Returns the rendered template output from the template string and variables
*
* @param string|FriendicaSmarty $s The string requiring macro substitution or an instance of FriendicaSmarty
* @param array $vars Key value pairs (search => replace)
*
* @return string substituted string
* @throws Exception
* @param string $template
* @param array $vars
* @return string
* @throws InternalServerErrorException
*/
public static function replaceMacros($s, array $vars = [])
public static function replaceMacros(string $template, array $vars = [])
{
$stamp1 = microtime(true);
// pass $baseurl to all templates if it isn't set
$vars = array_merge(['$baseurl' => DI::baseUrl()->get()], $vars);
$vars = array_merge(['$baseurl' => DI::baseUrl()->get(), '$APP' => DI::app()], $vars);
$t = self::getTemplateEngine();
try {
$output = $t->replaceMacros($s, $vars);
$output = $t->replaceMacros($template, $vars);
} catch (Exception $e) {
echo "<pre><b>" . __FUNCTION__ . "</b>: " . $e->getMessage() . "</pre>";
exit();
DI::logger()->critical($e->getMessage(), ['template' => $template, 'vars' => $vars]);
$message = is_site_admin() ?
$e->getMessage() :
DI::l10n()->t('Friendica can\'t display this page at the moment, please contact the administrator.');
throw new InternalServerErrorException($message);
}
DI::profiler()->saveTimestamp($stamp1, "rendering", System::callstack());
@ -98,22 +100,25 @@ class Renderer
/**
* Load a given template $s
*
* @param string $s Template to load.
* @param string $file Template to load.
* @param string $subDir Subdirectory (Optional)
*
* @return string template.
* @throws Exception
* @throws InternalServerErrorException
*/
public static function getMarkupTemplate($s, $subDir = '')
public static function getMarkupTemplate($file, $subDir = '')
{
$stamp1 = microtime(true);
$t = self::getTemplateEngine();
try {
$template = $t->getTemplateFile($s, $subDir);
$template = $t->getTemplateFile($file, $subDir);
} catch (Exception $e) {
echo "<pre><b>" . __FUNCTION__ . "</b>: " . $e->getMessage() . "</pre>";
exit();
DI::logger()->critical($e->getMessage(), ['file' => $file, 'subDir' => $subDir]);
$message = is_site_admin() ?
$e->getMessage() :
DI::l10n()->t('Friendica can\'t display this page at the moment, please contact the administrator.');
throw new InternalServerErrorException($message);
}
DI::profiler()->saveTimestamp($stamp1, "file", System::callstack());
@ -125,18 +130,22 @@ class Renderer
* Register template engine class
*
* @param string $class
* @throws InternalServerErrorException
*/
public static function registerTemplateEngine($class)
{
$v = get_class_vars($class);
if (!empty($v['name']))
{
if (!empty($v['name'])) {
$name = $v['name'];
self::$template_engines[$name] = $class;
} else {
echo "template engine <tt>$class</tt> cannot be registered without a name.\n";
die();
$admin_message = DI::l10n()->t('template engine cannot be registered without a name.');
DI::logger()->critical($admin_message, ['class' => $class]);
$message = is_site_admin() ?
$admin_message :
DI::l10n()->t('Friendica can\'t display this page at the moment, please contact the administrator.');
throw new InternalServerErrorException($message);
}
}
@ -146,7 +155,8 @@ class Renderer
* If $name is not defined, return engine defined by theme,
* or default
*
* @return ITemplateEngine Template Engine instance
* @return TemplateEngine Template Engine instance
* @throws InternalServerErrorException
*/
public static function getTemplateEngine()
{
@ -156,15 +166,20 @@ class Renderer
if (isset(self::$template_engine_instance[$template_engine])) {
return self::$template_engine_instance[$template_engine];
} else {
$a = DI::app();
$class = self::$template_engines[$template_engine];
$obj = new $class;
$obj = new $class($a->getCurrentTheme(), $a->theme_info);
self::$template_engine_instance[$template_engine] = $obj;
return $obj;
}
}
echo "template engine <tt>$template_engine</tt> is not registered!\n";
exit();
$admin_message = DI::l10n()->t('template engine is not registered!');
DI::logger()->critical($admin_message, ['template_engine' => $template_engine]);
$message = is_site_admin() ?
$admin_message :
DI::l10n()->t('Friendica can\'t display this page at the moment, please contact the administrator.');
throw new InternalServerErrorException($message);
}
/**

2
src/Model/Tag.php
View File

@ -535,6 +535,6 @@ class Tag
}
}
return Strings::startsWith($tag, $tag_chars);
return Strings::startsWithChars($tag, $tag_chars);
}
}

11
src/Module/Admin/Summary.php
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@ -31,7 +31,9 @@ use Friendica\Database\DBStructure;
use Friendica\DI;
use Friendica\Model\Register;
use Friendica\Module\BaseAdmin;
use Friendica\Module\Update\Profile;
use Friendica\Network\HTTPException\InternalServerErrorException;
use Friendica\Render\FriendicaSmarty;
use Friendica\Util\ConfigFileLoader;
use Friendica\Util\DateTimeFormat;
use Friendica\Util\Network;
@ -46,6 +48,14 @@ class Summary extends BaseAdmin
// are there MyISAM tables in the DB? If so, trigger a warning message
$warningtext = [];
$templateEngine = Renderer::getTemplateEngine();
$errors = [];
$templateEngine->testInstall($errors);
foreach ($errors as $error) {
$warningtext[] = DI::l10n()->t('Template engine (%s) error: %s', $templateEngine::$name, $error);
}
if (DBA::count(['information_schema' => 'tables'], ['engine' => 'myisam', 'table_schema' => DBA::databaseName()])) {
$warningtext[] = DI::l10n()->t('Your DB still runs with MyISAM tables. You should change the engine type to InnoDB. As Friendica will use InnoDB only features in the future, you should change this! See <a href="%s">here</a> for a guide that may be helpful converting the table engines. You may also use the command <tt>php bin/console.php dbstructure toinnodb</tt> of your Friendica installation for an automatic conversion.<br />', 'https://dev.mysql.com/doc/refman/5.7/en/converting-tables-to-innodb.html');
}
@ -136,7 +146,6 @@ class Summary extends BaseAdmin
throw new InternalServerErrorException('Stream is null.');
}
}
} catch (\Throwable $exception) {
$warningtext[] = DI::l10n()->t('The debug logfile \'%s\' is not usable. No logging possible (error: \'%s\')', $file, $exception->getMessage());
}

25
src/Render/FriendicaSmarty.php
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@ -21,7 +21,6 @@
namespace Friendica\Render;
use Friendica\DI;
use Smarty;
use Friendica\Core\Renderer;
@ -34,26 +33,23 @@ class FriendicaSmarty extends Smarty
public $filename;
function __construct()
function __construct(string $theme, array $theme_info)
{
parent::__construct();
$a = DI::app();
$theme = $a->getCurrentTheme();
// setTemplateDir can be set to an array, which Smarty will parse in order.
// The order is thus very important here
$template_dirs = ['theme' => "view/theme/$theme/" . self::SMARTY3_TEMPLATE_FOLDER . "/"];
if (!empty($a->theme_info['extends'])) {
$template_dirs = $template_dirs + ['extends' => "view/theme/" . $a->theme_info["extends"] . "/" . self::SMARTY3_TEMPLATE_FOLDER . "/"];
if (!empty($theme_info['extends'])) {
$template_dirs = $template_dirs + ['extends' => "view/theme/" . $theme_info["extends"] . "/" . self::SMARTY3_TEMPLATE_FOLDER . "/"];
}
$template_dirs = $template_dirs + ['base' => "view/" . self::SMARTY3_TEMPLATE_FOLDER . "/"];
$this->setTemplateDir($template_dirs);
$this->setCompileDir('view/smarty3/compiled/');
$this->setConfigDir('view/smarty3/config/');
$this->setCacheDir('view/smarty3/cache/');
$this->setConfigDir('view/smarty3/');
$this->setCacheDir('view/smarty3/');
$this->left_delimiter = Renderer::getTemplateLeftDelimiter('smarty3');
$this->right_delimiter = Renderer::getTemplateRightDelimiter('smarty3');
@ -63,13 +59,4 @@ class FriendicaSmarty extends Smarty
// Don't report errors so verbosely
$this->error_reporting = E_ALL & ~E_NOTICE;
}
function parsed($template = '')
{
if ($template) {
return $this->fetch('string:' . $template);
}
return $this->fetch('file:' . $this->filename);
}
}
}

91
src/Render/FriendicaSmartyEngine.php
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@ -23,56 +23,82 @@ namespace Friendica\Render;
use Friendica\Core\Hook;
use Friendica\DI;
use Friendica\Network\HTTPException\InternalServerErrorException;
use Friendica\Util\Strings;
/**
* Smarty implementation of the Friendica template engine interface
* Smarty implementation of the Friendica template abstraction
*/
class FriendicaSmartyEngine implements ITemplateEngine
final class FriendicaSmartyEngine extends TemplateEngine
{
static $name = "smarty3";
public function __construct()
const FILE_PREFIX = 'file:';
const STRING_PREFIX = 'string:';
/** @var FriendicaSmarty */
private $smarty;
/**
* @inheritDoc
*/
public function __construct(string $theme, array $theme_info)
{
if (!is_writable(__DIR__ . '/../../view/smarty3/')) {
echo "<b>ERROR:</b> folder <tt>view/smarty3/</tt> must be writable by webserver.";
exit();
$this->theme = $theme;
$this->theme_info = $theme_info;
$this->smarty = new FriendicaSmarty($this->theme, $this->theme_info);
if (!is_writable(DI::basePath() . '/view/smarty3')) {
$admin_message = DI::l10n()->t('The folder view/smarty3/ must be writable by webserver.');
DI::logger()->critical($admin_message);
$message = is_site_admin() ?
$admin_message :
DI::l10n()->t('Friendica can\'t display this page at the moment, please contact the administrator.');
throw new InternalServerErrorException($message);
}
}
// ITemplateEngine interface
public function replaceMacros($s, $r)
/**
* @inheritDoc
*/
public function testInstall(array &$errors = null)
{
$template = '';
if (gettype($s) === 'string') {
$template = $s;
$s = new FriendicaSmarty();
}
$this->smarty->testInstall($errors);
}
$r['$APP'] = DI::app();
/**
* @inheritDoc
*/
public function replaceMacros(string $template, array $vars)
{
if (!Strings::startsWith($template, self::FILE_PREFIX)) {
$template = self::STRING_PREFIX . $template;
}
// "middleware": inject variables into templates
$arr = [
"template" => basename($s->filename),
"vars" => $r
'template' => basename($this->smarty->filename),
'vars' => $vars
];
Hook::callAll("template_vars", $arr);
$r = $arr['vars'];
Hook::callAll('template_vars', $arr);
$vars = $arr['vars'];
foreach ($r as $key => $value) {
foreach ($vars as $key => $value) {
if ($key[0] === '$') {
$key = substr($key, 1);
}
$s->assign($key, $value);
$this->smarty->assign($key, $value);
}
return $s->parsed($template);
return $this->smarty->fetch($template);
}
public function getTemplateFile($file, $subDir = '')
/**
* @inheritDoc
*/
public function getTemplateFile(string $file, string $subDir = '')
{
$a = DI::app();
$template = new FriendicaSmarty();
// Make sure $root ends with a slash /
if ($subDir !== '' && substr($subDir, -1, 1) !== '/') {
$subDir = $subDir . '/';
@ -80,21 +106,20 @@ class FriendicaSmartyEngine implements ITemplateEngine
$root = DI::basePath() . '/' . $subDir;
$theme = $a->getCurrentTheme();
$filename = $template::SMARTY3_TEMPLATE_FOLDER . '/' . $file;
$filename = $this->smarty::SMARTY3_TEMPLATE_FOLDER . '/' . $file;
if (file_exists("{$root}view/theme/$theme/$filename")) {
$template_file = "{$root}view/theme/$theme/$filename";
} elseif (!empty($a->theme_info['extends']) && file_exists(sprintf('%sview/theme/%s}/%s', $root, $a->theme_info['extends'], $filename))) {
$template_file = sprintf('%sview/theme/%s}/%s', $root, $a->theme_info['extends'], $filename);
if (file_exists("{$root}view/theme/$this->theme/$filename")) {
$template_file = "{$root}view/theme/$this->theme/$filename";
} elseif (!empty($this->theme_info['extends']) && file_exists(sprintf('%sview/theme/%s}/%s', $root, $this->theme_info['extends'], $filename))) {
$template_file = sprintf('%sview/theme/%s}/%s', $root, $this->theme_info['extends'], $filename);
} elseif (file_exists("{$root}/$filename")) {
$template_file = "{$root}/$filename";
} else {
$template_file = "{$root}view/$filename";
}
$template->filename = $template_file;
$this->smarty->filename = $template_file;
return $template;
return self::FILE_PREFIX . $template_file;
}
}

31
src/Render/ITemplateEngine.php
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@ -1,31 +0,0 @@
<?php
/**
* @copyright Copyright (C) 2020, Friendica
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
namespace Friendica\Render;
/**
* Interface for template engines
*/
interface ITemplateEngine
{
public function replaceMacros($s, $v);
public function getTemplateFile($file, $subDir = '');
}

68
src/Render/TemplateEngine.php Normal file
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@ -0,0 +1,68 @@
<?php
/**
* @copyright Copyright (C) 2020, Friendica
*
* @license GNU AGPL version 3 or any later version
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
namespace Friendica\Render;
/**
* Interface for template engines
*/
abstract class TemplateEngine
{
/** @var string */
static $name;
/** @var string */
protected $theme;
/** @var array */
protected $theme_info;
/**
* @param string $theme The current theme name
* @param array $theme_info The current theme info array
*/
abstract public function __construct(string $theme, array $theme_info);
/**
* Checks the template engine is correctly installed and configured and reports error messages in the provided
* parameter or displays them directly if it's null.
*
* @param array|null $errors
*/
abstract public function testInstall(array &$errors = null);
/**
* Returns the rendered template output from the template string and variables
*
* @param string $template
* @param array $vars
* @return string
*/
abstract public function replaceMacros(string $template, array $vars);
/**
* Returns the template string from a file path and an optional sub-directory from the project root
*
* @param string $file
* @param string $subDir
* @return mixed
*/
abstract public function getTemplateFile(string $file, string $subDir = '');
}

16
src/Util/Strings.php
View File

@ -369,13 +369,27 @@ class Strings
* @param array $chars
* @return bool
*/
public static function startsWith($string, array $chars)
public static function startsWithChars($string, array $chars)
{
$return = in_array(substr(trim($string), 0, 1), $chars);
return $return;
}
/**
* Check if the first string starts with the second
*
* @param string $string
* @param string $start
* @return bool
*/
public static function startsWith(string $string, string $start)
{
$return = substr_compare($string, $start, 0, strlen($start)) === 0;
return $return;
}
/**
* Returns the regular expression string to match URLs in a given text
*

2
tests/Util/AppMockTrait.php
View File

@ -108,7 +108,7 @@ trait AppMockTrait
->andReturn($this->configMock);
$this->app
->shouldReceive('getTemplateEngine')
->andReturn(new FriendicaSmartyEngine());
->andReturn(new FriendicaSmartyEngine('frio', []));
$this->app
->shouldReceive('getCurrentTheme')
->andReturn('Smarty3');