]> git.mxchange.org Git - friendica.git/blobdiff - src/BaseModule.php
Merge pull request #13238 from annando/issue-13221
[friendica.git] / src / BaseModule.php
index 5d752bb4f7450065bec2642c8f997fa8f067c91c..b43e984772f6cfd7b6ecfa220f8dc6ea52c999a6 100644 (file)
@@ -1,6 +1,6 @@
 <?php
 /**
- * @copyright Copyright (C) 2010-2021, the Friendica project
+ * @copyright Copyright (C) 2010-2023, the Friendica project
  *
  * @license GNU AGPL version 3 or any later version
  *
 
 namespace Friendica;
 
+use Friendica\App\Router;
 use Friendica\Capabilities\ICanHandleRequests;
+use Friendica\Capabilities\ICanCreateResponses;
+use Friendica\Core\Hook;
 use Friendica\Core\L10n;
 use Friendica\Core\Logger;
 use Friendica\Model\User;
+use Friendica\Module\Response;
+use Friendica\Module\Special\HTTPException as ModuleHTTPException;
+use Friendica\Network\HTTPException;
+use Friendica\Util\Profiler;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Log\LoggerInterface;
 
 /**
  * All modules in Friendica should extend BaseModule, although not all modules
@@ -39,69 +48,292 @@ abstract class BaseModule implements ICanHandleRequests
 {
        /** @var array */
        protected $parameters = [];
-
        /** @var L10n */
        protected $l10n;
+       /** @var App\BaseURL */
+       protected $baseUrl;
+       /** @var App\Arguments */
+       protected $args;
+       /** @var LoggerInterface */
+       protected $logger;
+       /** @var Profiler */
+       protected $profiler;
+       /** @var array */
+       protected $server;
+       /** @var ICanCreateResponses */
+       protected $response;
 
-       public function __construct(L10n $l10n, array $parameters = [])
+       public function __construct(L10n $l10n, App\BaseURL $baseUrl, App\Arguments $args, LoggerInterface $logger, Profiler $profiler, Response $response, array $server, array $parameters = [])
        {
                $this->parameters = $parameters;
                $this->l10n       = $l10n;
+               $this->baseUrl    = $baseUrl;
+               $this->args       = $args;
+               $this->logger     = $logger;
+               $this->profiler   = $profiler;
+               $this->server     = $server;
+               $this->response   = $response;
        }
 
        /**
-        * {@inheritDoc}
+        * Wraps the L10n::t() function for Modules
+        *
+        * @see L10n::t()
+        */
+       protected function t(string $s, ...$args): string
+       {
+               return $this->l10n->t($s, ...$args);
+       }
+
+       /**
+        * Wraps the L10n::tt() function for Modules
+        *
+        * @see L10n::tt()
+        */
+       protected function tt(string $singular, string $plural, int $count): string
+       {
+               return $this->l10n->tt($singular, $plural, $count);
+       }
+
+       /**
+        * Module GET method to display raw content from technical endpoints
+        *
+        * Extend this method if the module is supposed to return communication data,
+        * e.g. from protocol implementations.
+        *
+        * @param string[] $request The $_REQUEST content
+        * @return void
         */
-       public function rawContent()
+       protected function rawContent(array $request = [])
        {
                // echo '';
                // exit;
        }
 
        /**
-        * {@inheritDoc}
+        * Module GET method to display any content
+        *
+        * Extend this method if the module is supposed to return any display
+        * through a GET request. It can be an HTML page through templating or a
+        * XML feed or a JSON output.
+        *
+        * @param string[] $request The $_REQUEST content
+        * @return string
         */
-       public function content(): string
+       protected function content(array $request = []): string
        {
                return '';
        }
 
        /**
-        * {@inheritDoc}
+        * Module DELETE method to process submitted data
+        *
+        * Extend this method if the module is supposed to process DELETE requests.
+        * Doesn't display any content
+        *
+        * @param string[] $request The $_REQUEST content
+        * @return void
         */
-       public function delete()
+       protected function delete(array $request = [])
        {
        }
 
        /**
-        * {@inheritDoc}
+        * Module PATCH method to process submitted data
+        *
+        * Extend this method if the module is supposed to process PATCH requests.
+        * Doesn't display any content
+        *
+        * @param string[] $request The $_REQUEST content
+        * @return void
         */
-       public function patch()
+       protected function patch(array $request = [])
        {
        }
 
        /**
-        * {@inheritDoc}
+        * Module POST method to process submitted data
+        *
+        * Extend this method if the module is supposed to process POST requests.
+        * Doesn't display any content
+        *
+        * @param string[] $request The $_REQUEST content
+        * @return void
         */
-       public function post()
+       protected function post(array $request = [])
+       {
+               // $this->baseUrl->redirect('module');
+       }
+
+       /**
+        * Module PUT method to process submitted data
+        *
+        * Extend this method if the module is supposed to process PUT requests.
+        * Doesn't display any content
+        *
+        * @param string[] $request The $_REQUEST content
+        * @return void
+        */
+       protected function put(array $request = [])
        {
-               // DI::baseurl()->redirect('module');
        }
 
        /**
         * {@inheritDoc}
         */
-       public function put()
+       public function run(ModuleHTTPException $httpException, array $request = []): ResponseInterface
+       {
+               // @see https://github.com/tootsuite/mastodon/blob/c3aef491d66aec743a3a53e934a494f653745b61/config/initializers/cors.rb
+               if (substr($this->args->getQueryString(), 0, 12) == '.well-known/') {
+                       $this->response->setHeader('*', 'Access-Control-Allow-Origin');
+                       $this->response->setHeader('*', 'Access-Control-Allow-Headers');
+                       $this->response->setHeader(Router::GET, 'Access-Control-Allow-Methods');
+                       $this->response->setHeader('false', 'Access-Control-Allow-Credentials');
+               } elseif (substr($this->args->getQueryString(), 0, 8) == 'profile/') {
+                       $this->response->setHeader('*', 'Access-Control-Allow-Origin');
+                       $this->response->setHeader('*', 'Access-Control-Allow-Headers');
+                       $this->response->setHeader(Router::GET, 'Access-Control-Allow-Methods');
+                       $this->response->setHeader('false', 'Access-Control-Allow-Credentials');
+               } elseif (substr($this->args->getQueryString(), 0, 4) == 'api/') {
+                       $this->response->setHeader('*', 'Access-Control-Allow-Origin');
+                       $this->response->setHeader('*', 'Access-Control-Allow-Headers');
+                       $this->response->setHeader(implode(',', Router::ALLOWED_METHODS), 'Access-Control-Allow-Methods');
+                       $this->response->setHeader('false', 'Access-Control-Allow-Credentials');
+                       $this->response->setHeader('Link', 'Access-Control-Expose-Headers');
+               } elseif (substr($this->args->getQueryString(), 0, 11) == 'oauth/token') {
+                       $this->response->setHeader('*', 'Access-Control-Allow-Origin');
+                       $this->response->setHeader('*', 'Access-Control-Allow-Headers');
+                       $this->response->setHeader(Router::POST, 'Access-Control-Allow-Methods');
+                       $this->response->setHeader('false', 'Access-Control-Allow-Credentials');
+               }
+
+               $placeholder = '';
+
+               $this->profiler->set(microtime(true), 'ready');
+               $timestamp = microtime(true);
+
+               Core\Hook::callAll($this->args->getModuleName() . '_mod_init', $placeholder);
+
+               $this->profiler->set(microtime(true) - $timestamp, 'init');
+
+               switch ($this->args->getMethod()) {
+                       case Router::DELETE:
+                               $this->delete($request);
+                               break;
+                       case Router::PATCH:
+                               $this->patch($request);
+                               break;
+                       case Router::POST:
+                               Core\Hook::callAll($this->args->getModuleName() . '_mod_post', $request);
+                               $this->post($request);
+                               break;
+                       case Router::PUT:
+                               $this->put($request);
+                               break;
+               }
+
+               $timestamp = microtime(true);
+               // "rawContent" is especially meant for technical endpoints.
+               // This endpoint doesn't need any theme initialization or other comparable stuff.
+               $this->rawContent($request);
+
+               try {
+                       $arr = ['content' => ''];
+                       Hook::callAll(static::class . '_mod_content', $arr);
+                       $this->response->addContent($arr['content']);
+                       $this->response->addContent($this->content($request));
+               } catch (HTTPException $e) {
+                       // In case of System::externalRedirects(), we don't want to prettyprint the exception
+                       // just redirect to the new location
+                       if (($e instanceof HTTPException\FoundException) ||
+                               ($e instanceof HTTPException\MovedPermanentlyException) ||
+                               ($e instanceof HTTPException\TemporaryRedirectException)) {
+                               throw $e;
+                       }
+
+                       $this->response->addContent($httpException->content($e));
+               } finally {
+                       $this->profiler->set(microtime(true) - $timestamp, 'content');
+               }
+
+               return $this->response->generate();
+       }
+
+       /**
+        * Checks request inputs and sets default parameters
+        *
+        * @param array $defaults Associative array of expected request keys and their default typed value. A null
+        *                        value will remove the request key from the resulting value array.
+        * @param array $input    Custom REQUEST array, superglobal instead
+        *
+        * @return array Request data
+        */
+       protected function checkDefaults(array $defaults, array $input): array
        {
+               $request = [];
+
+               foreach ($defaults as $parameter => $defaultvalue) {
+                       $request[$parameter] = $this->getRequestValue($input, $parameter, $defaultvalue);
+               }
+
+               foreach ($input ?? [] as $parameter => $value) {
+                       if ($parameter == 'pagename') {
+                               continue;
+                       }
+                       if (!in_array($parameter, array_keys($defaults))) {
+                               $this->logger->notice('Unhandled request field', ['parameter' => $parameter, 'value' => $value, 'command' => $this->args->getCommand()]);
+                       }
+               }
+
+               $this->logger->debug('Got request parameters', ['request' => $request, 'command' => $this->args->getCommand()]);
+               return $request;
        }
 
-       /** Gets the name of the current class */
-       public function getClassName(): string
+       /**
+        * Fetch a request value and apply default values and check against minimal and maximal values
+        *
+        * @param array $input Input fields
+        * @param string $parameter Parameter
+        * @param mixed $default Default
+        * @param mixed $minimal_value Minimal value
+        * @param mixed $maximum_value Maximum value
+        * @return mixed null on error anything else on success (?)
+        */
+       public function getRequestValue(array $input, string $parameter, $default = null, $minimal_value = null, $maximum_value = null)
        {
-               return static::class;
+               if (is_string($default)) {
+                       $value = (string)($input[$parameter] ?? $default);
+               } elseif (is_int($default)) {
+                       $value = filter_var($input[$parameter] ?? $default, FILTER_VALIDATE_INT);
+                       if (!is_null($minimal_value)) {
+                               $value = max(filter_var($minimal_value, FILTER_VALIDATE_INT), $value);
+                       }
+                       if (!is_null($maximum_value)) {
+                               $value = min(filter_var($maximum_value, FILTER_VALIDATE_INT), $value);
+                       }
+               } elseif (is_float($default)) {
+                       $value = filter_var($input[$parameter] ?? $default, FILTER_VALIDATE_FLOAT);
+                       if (!is_null($minimal_value)) {
+                               $value = max(filter_var($minimal_value, FILTER_VALIDATE_FLOAT), $value);
+                       }
+                       if (!is_null($maximum_value)) {
+                               $value = min(filter_var($maximum_value, FILTER_VALIDATE_FLOAT), $value);
+                       }
+               } elseif (is_array($default)) {
+                       $value = filter_var($input[$parameter] ?? $default, FILTER_DEFAULT, ['flags' => FILTER_FORCE_ARRAY]);
+               } elseif (is_bool($default)) {
+                       $value = filter_var($input[$parameter] ?? $default, FILTER_VALIDATE_BOOLEAN);
+               } elseif (is_null($default)) {
+                       $value = $input[$parameter] ?? null;
+               } else {
+                       $this->logger->notice('Unhandled default value type', ['parameter' => $parameter, 'type' => gettype($default)]);
+                       $value = null;
+               }
+
+               return $value;
        }
 
-       /*
+       /**
         * Functions used to protect against Cross-Site Request Forgery
         * The security token has to base on at least one value that an attacker can't know - here it's the session ID and the private key.
         * In this implementation, a security token is reusable (if the user submits a form, goes back and resubmits the form, maybe with small changes;
@@ -111,17 +343,27 @@ abstract class BaseModule implements ICanHandleRequests
         *    If the new page contains by any chance external elements, then the used security token is exposed by the referrer.
         *    Actually, important actions should not be triggered by Links / GET-Requests at all, but sometimes they still are,
         *    so this mechanism brings in some damage control (the attacker would be able to forge a request to a form of this type, but not to forms of other types).
+        *
+        * @param string $typename Type name
+        * @return string Security hash with timestamp
         */
-       public static function getFormSecurityToken($typename = '')
+       public static function getFormSecurityToken(string $typename = ''): string
        {
-               $user = User::getById(DI::app()->getLoggedInUserId(), ['guid', 'prvkey']);
+               $user      = User::getById(DI::app()->getLoggedInUserId(), ['guid', 'prvkey']);
                $timestamp = time();
-               $sec_hash = hash('whirlpool', ($user['guid'] ?? '') . ($user['prvkey'] ?? '') . session_id() . $timestamp . $typename);
+               $sec_hash  = hash('whirlpool', ($user['guid'] ?? '') . ($user['prvkey'] ?? '') . session_id() . $timestamp . $typename);
 
                return $timestamp . '.' . $sec_hash;
        }
 
-       public static function checkFormSecurityToken($typename = '', $formname = 'form_security_token')
+       /**
+        * Checks if form's security (CSRF) token is valid.
+        *
+        * @param string $typename ???
+        * @param string $formname Name of form/field (???)
+        * @return bool Whether it is valid
+        */
+       public static function checkFormSecurityToken(string $typename = '', string $formname = 'form_security_token'): bool
        {
                $hash = null;
 
@@ -153,22 +395,22 @@ abstract class BaseModule implements ICanHandleRequests
                return ($sec_hash == $x[1]);
        }
 
-       public static function getFormSecurityStandardErrorMessage()
+       public static function getFormSecurityStandardErrorMessage(): string
        {
-               return DI::l10n()->t("The form security token was not correct. This probably happened because the form has been opened for too long \x28>3 hours\x29 before submitting it.") . EOL;
+               return DI::l10n()->t("The form security token was not correct. This probably happened because the form has been opened for too long \x28>3 hours\x29 before submitting it.");
        }
 
-       public static function checkFormSecurityTokenRedirectOnError($err_redirect, $typename = '', $formname = 'form_security_token')
+       public static function checkFormSecurityTokenRedirectOnError(string $err_redirect, string $typename = '', string $formname = 'form_security_token')
        {
                if (!self::checkFormSecurityToken($typename, $formname)) {
                        Logger::notice('checkFormSecurityToken failed: user ' . DI::app()->getLoggedInUserNickname() . ' - form element ' . $typename);
                        Logger::debug('checkFormSecurityToken failed', ['request' => $_REQUEST]);
-                       notice(self::getFormSecurityStandardErrorMessage());
+                       DI::sysmsg()->addNotice(self::getFormSecurityStandardErrorMessage());
                        DI::baseUrl()->redirect($err_redirect);
                }
        }
 
-       public static function checkFormSecurityTokenForbiddenOnError($typename = '', $formname = 'form_security_token')
+       public static function checkFormSecurityTokenForbiddenOnError(string $typename = '', string $formname = 'form_security_token')
        {
                if (!self::checkFormSecurityToken($typename, $formname)) {
                        Logger::notice('checkFormSecurityToken failed: user ' . DI::app()->getLoggedInUserNickname() . ' - form element ' . $typename);
@@ -178,7 +420,7 @@ abstract class BaseModule implements ICanHandleRequests
                }
        }
 
-       protected static function getContactFilterTabs(string $baseUrl, string $current, bool $displayCommonTab)
+       protected static function getContactFilterTabs(string $baseUrl, string $current, bool $displayCommonTab): array
        {
                $tabs = [
                        [