I am creating website in PHP. I am using MVC in PHP. My website works like this, if user go to example.com/about then it it will load About class and index() function. If user will go to localhost/about/founder then it will load founder() function from About class. but the thing is that if I go to localhost/About or localhost/AbOut or anything like that it is loading default index() function from About class file. So what to do with case sensitivity? I mean I want my script to load index() function from class file if it is localhost/about or localhost/terms. If anything is in uppercase, then it should load 404 error function. 404 error function is already set in my site.
Please help me friends.
here is my Bootstrap.php class file
<?php
/*
Bootstrap class to run functions by URL
*/
class Bootstrap {
public $_req;
public $_body;
public $_file;
public $_error;
function __construct(){
if(empty($_GET['req'])){
require 'classes/home.php';
$this->_body = new Home();
$this->hdr($this->_body->head());
$this->_body->index();
$this->ftr();
exit();
}
$this->_req = rtrim($_GET['req'], '/');
$this->_req = explode('/', $this->_req );
$_file = 'classes/'.$this->_req[0].'.php';
if(file_exists($_file)){
require $_file;
}
else {
$this->error(404);
}
$this->_body = new $this->_req[0];
$this->hdr($this->_body->head());
if(isset($this->_req[2])){
if(method_exists($this->_req[0], $this->_req[1])){
$this->_body->{$this->_req[1]}($this->_req[2]);
}else {
$this->error(404);
}
}else {
if(isset($this->_req[1])){
if(method_exists($this->_req[0], $this->_req[1])){
$this->_body->{$this->_req[1]}();
}else {
$this->error(404);
}
}else {
$this->_body->index();
}
$this->ftr();
}
}
//this function is to set header in html code
public function hdr($var = false){
echo '<!DOCTYPE HTML><html><head>'.$var.'</head><body>';
}
//this function is tp set footer in html code
public function ftr($var = false){
echo $var.'</body></html>';
}
//error handler
public function error($var){
require 'classes/er_pg.php';
$this->_error = new Error();
$this->_error->index($var);
}
}
You shouldn't use anything to load non-lowercase URLs because of the duplicate content, and that's a good thing you're doing. The wrong URLs should fail automatically in such cases.
However, since you didn't show how are you making those calls, then only thing I can suggest at this point is to check if the called method exists (case-sensitive), and if not, throw/redirect to a 404 page (header($_SERVER["SERVER_PROTOCOL"]." 404 Not Found");).
UPDATE
After all the chat in the comments, seems like file_exists is not case-sensitive in your case, which is really weird. Hopefully someone will be able to figure it out so I can delete this (keeping it because of the info in the comments).
I solved the problem. I used this
if(ctype_lower($this->_req[0])){
$_file = 'classes/'.$this->_req[0].'.php';
and now its working. Thanx anyways friends.
Related
Want to check Environment and if matches some case then want to redirect or load some view. get_instance(); not working inside index.php where environment check
what i'm looking something like below:
if (ENVIRONMENT === "production")
{
/*if(error ="db error")
redirect("/someview","refresh");
or load view header and footer
*/
}
i just confused about error handling mechanism in CI. By the help of stackoverflow users i found steps to turn off the errors . but now i can't handle those errors.
If you want to handle a certain error, You can redirect it to a certain view in the process as what you have mentioned in your question.
// Assuming you have a [Home] Controller that extends to your [Common] parent class
class Home extends Common {
public function index()
{
$this->load->helper('url');
$bCheck = false;
if ($bCheck !== true) {
$this->handleRedirectMethod('path/to/your/controller');
}
}
}
Then on your parent [Common] controller. (e.g Common.php)
class Common extends CI_Controller
{
public function handleRedirectMethod($sUrl, $sMethodName = 'refresh', $sStatusCode = '302')
{
$sServerName = $_SERVER['REQUEST_SCHEME'] . '://' . $_SERVER['HTTP_HOST'];
redirect($sServerName . '/' . $sUrl, $sMethodName, $sStatusCode);
}
}
Hope this makes you understand how you can handle those errors
I doing tutorial follow http://book.cakephp.org/3.0/en/development/errors.html#exception-renderer but it is not working and display blank page.
In config/bootstrap.php
use App\Error\AppError;
$errorHandler = new AppError();
$errorHandler->register();
In src/Error/AppError.php
<?php
namespace App\Error;
use Cake\Error\BaseErrorHandler;
class AppError extends BaseErrorHandler
{
public function _displayError($error, $debug)
{
return 'There has been an error!';
}
public function _displayException($exception)
{
return 'There has been an exception!';
}
public function handleFatalError($code, $description, $file, $line)
{
return 'A fatal error has happened';
}
}
I create my_error.ctp in src/Template/Layout/my_error.ctp. And in my src/Template/Error/error404.ctp I change layout to my_error.ctp.
$this->layout = 'my_error';
Finally, In my controller
use Cake\Network\Exception\NotFoundException;
$staff = $this->Staff->find()->where(['Staff.StaffId = '=> $id, 'Staff.PartnerId = ' =>$this->partnerId])->first();
if (empty($staff)) {
throw new NotFoundException(__('Staff not found'));
}
Whenever encountering blank pages, enabled debug mode, visit the URL again, and check your error logs.
However, problem in this case is most likely that the docs are incorrect/misleading, as the example app error won't do anything at all. The _ prefixed methods are ment to be protected, having them return something has no effect, and handleFatalError is ment to return a boolean.
Just look at the source of Cake\Error\BaseErrorHandler and the core error handler Cake\Error\ErrorHandler, the methods that you are overwriting are ment to generate output!
You may want to report that as an issue over at GitHub.
If all you want to do, is create a custom 4xx error page, then all you need to do is to edit the src/Template/Error/error400.ctp template accordingly.
I found my mistake. :(
Because in bootstrap.php I copy below code at the end of file. Therefore Cake cannot understand it. Please close this issue. Thank you for support.
use App\Error\AppError;
$errorHandler = new AppError();
$errorHandler->register();
Until now, unless I made a multilingual website (where I would use .mo & .po files), all the text would be scrambled all around the template and / or class files. Instead, I would like to store all static text in a file that is easily editable by my coworkers and clients (that rules out database storage and POedit).
I made a JSON file that stores the messages / static text like this:
{
"titles": {
"main_title": "This is the main title of the website",
"login_page_title": "Please, sing in",
"about_page_title": "About us"
},
"errors": {
"empty_required_field": "This field is required.",
"database_connection_error": "Couldn't connect to the database.",
}
}
Then I import it in the index.php file:
$messages = json_decode(file_get_contents("messages.json"));
And use it like:
echo($messages->titles->main_title);
Which has been working so far so good (although I'm uncertain that there aren't better ways to archieve this). At least in the template pages where everything is html with minimal logic.
But I'm having trouble using the strings from the JSON file inside the classes' functions. I would like to use the error messages when throwing exceptions, for example. But I'm quite reluctant about stating "global $message" in every function where it's used (feels repetitive). Also everybody says that globals are naughty.
So my questions are two:
1) Is the JSON file a good way to handle my problem? (and if not, why, and which method would be better?).
2) How could I retrieve the stored strings from inside the classes? I'm thinking something like extending the Exception class to include the error messages, but I'm unsure of how to do it.
Thanks in advance for your help.
One approach, which Laravel takes, is creating some sort of directory tree like the following:
lang/
en/
titles.php
errors.php
titles.php could contain the following:
<?php
return [
'main_title' => 'This is the main title of the website',
'login_page_title' => 'Please, sing in',
'about_page_title' => 'About us'
];
As for errors.php:
<?php
return [
'empty_required_field' => 'This field is required.',
'database_connection_error' => "Couldn't connect to the database.",
];
I don't really like the JSON approach because it's not very flexible. For one, in PHP files, you have access to any variables you may want to give it, there's comments, possibility of using functions to create some messages, etc. This is why I recommend the above method.
In order to get the messages, you would require the file in a variable, like $titles = require 'lang/en/titles.php', using it like: $titles['main_title']. This method also makes it easy to change the language if needed.
While I'm not 100% sure I understand your exception problem, you would throw an exception with the appropriate message like: throw new Exception($errors['empty_required_field']);
In the end I opted for a Singleton class that loads/includes a separate text file. Nice global scope and should be easy to adapt to other needs (multilingüal, separate language files, or whatever). As I said I'm no expert so all critique is welcome.
<?php
class CustomText {
private static $instance = null;
private static $text;
private function __clone() {}
// On construct, checks if the strings are stored in a session.
// If not, retrieves them from file and stores them in a session.
private function __construct() {
if(self::isStoredInSession() == true) {
self::$text = $_SESSION["custom_text"];
} else {
//self::$text = json_decode(file_get_contents("messages.json"),true);
self::$text = include_once("messages.php");
self::saveToSession();
}
}
// Private initialization called on every public method so I don't have to worry about it on other files.
private static function initialize() {
if(self::$instance == null) {
self::$instance = new self;
}
}
// Session management
private static function saveToSession() {
if(session_status() == PHP_SESSION_NONE) {
session_start();
}
if(!isset($_SESSION["custom_text"])) {
$_SESSION["custom_text"] = self::$text;
}
}
private static function isStoredInSession() {
if(session_status() == PHP_SESSION_NONE) {
session_start();
}
if(isset($_SESSION["custom_text"])) {
return true;
}
return false;
}
// Sample public functions
public static function getText($section,$string){
self::initialize();
if(isset(self::$text[$section][$string])) {
return self::$text[$section][$string];
} else {
return "";
}
}
public static function getError($string) {
self::initialize();
if(isset(self::$text["error"][$string])) {
return self::$text["error"][$string];
} else {
return "";
}
}
public static function getWebsiteTitle($section,$divider = " - ") {
self::initialize();
$title = "";
if(isset(self::$text["title"]["main"])) {
$title .= self::$text["title"]["main"];
}
if(isset(self::$text["title"][$section])) {
if(!empty($title)) {
$title .= $divider;
}
$title .= self::$text["title"][$section];
}
return $title;
}
}
What worries me the most is that I'm not sure that storing the data in a session is better that including a file on each page, and I have everything twice in the session variable and the class parameter.
I'm trying to integrate Fotolia Api with Prestashop 1.6.0.9.
I already make module with custom tab, but I have no idea how set view from module folder for this tab. Sorry to say, but "documentation for developers" SUCKS.
I can't find any working solution.
public function install() {
if (!parent::install()
|| !$this->registerHook('backOfficeHeader')
|| !$this->registerHook('header')
) return false;
$tab = new Tab();
$tab->class_name = 'AdminFotoliaSelector';
$tab->id_parent = 0;
$tab->module = $this->name;
$tab->name[(int)(Configuration::get('PS_LANG_DEFAULT'))] = 'Fotolia Selector';
$tab->add();
return true;
}
I had big problem with make proper controller, and now I just can't load anything/ I have no idea how do this.
<?php
if (!defined('_PS_VERSION_'))
exit;
class AdminFotoliaSelectorController extends ModuleAdminController {
public $name;
public function __construct() {
$this->lang = (!isset($this->context->cookie) || !is_object($this->context->cookie)) ? intval(Configuration::get('PS_LANG_DEFAULT')) : intval($this->context->cookie->id_lang);
parent::__construct();
}
public function initContent() {
parent::initContent();
$this->renderForm();
}
public function renderForm() {
$path = _MODULE_DIR_."fotoliaselector";
$more = $this->module->display($path, 'views/templates/admin/fotoliaselector.tpl');
return $more.parent::renderForm();
}
When I try die($more) it gives me content of .tpl, anyway when I click tab in back office it's still empty.
I have debug options on, compiling on, cache off.
So just enlight me please, how am I supose to show ANYTHING there?
I think the problem is that you don't display tab's content at all.
I don't know what module->display method does, but I think you should change in initContent() method line:
$this->renderForm();
into
echo $this->renderForm();
If it won't help you should look at this documentation and try to do it without external classes - only try to use Smarty to display simple content without using Tab class or AdminFotoliaSelector
Well i know it will sounds weird but you need to take some similar modules, and read his code and will see some methods names are the same in each module.
Then copy that, install and play with some changes etc.
Imho you miss standard method getContent() form where you need to pass some data for smarty:
public function getContent()
{
global $smarty, $cookie;
......
//some code
......
$this->_html .= '<script type="text/javascript" src="'.__PS_BASE_URI__.'js/tinymce/jscripts/tiny_mce/tiny_mce.js"></script>';
$this->_html .= '<h1>My module title or stuff</h1>';
$this->_html .= $this->getMyCoolFormOrConfig();
$smarty->assign('errors', $this->errors);
$smarty->assign('message', $this->message);
$this->_html .= $this->display(__FILE__, 'name_of_tpl_file.tpl');
return $this->_html;
}
to simple add tab in BackOffice code like this:
$id_tab=Tab::getIdFromClassName('AdminPayment');
$newtab=new Tab();
$newtab->id_parent=$id_tab;
$newtab->module=$this->name;
$newtab->class_name='MyClassName'; //will be same like MyClassName.php in folder of you module where you need to create you class and extend the AdminTab and from there with function you need to echo you name module
$newtab->position=Tab::getNbTabs($id_tab)+1;
$newtab->name[$cookie->id_lang]=$this->l("Name of you stuff");
$newtab->name[Configuration::get('PS_LANG_DEFAULT')]=$this->l("Name of you stuff");
$newtab->add();
Study this file there /controllers/admin/AdminModulesController.php
and you see what methods are using in each module
Take a look greater feature to generate you module structure (register requeired) https://validator.prestashop.com/generator
I have to display different views for mobile devices and I want to provide a simple JSON-API.
I wrote a little module for the Kohana Framework which loads different views depending on some circumstances, which should help me in this case: https://github.com/ClaudioAlbertin/Kohana-View-Factory
However, I'm not very happy with this solution because I can't set different assets for different device-types. Also, when I'd output JSON with a JSON-view, it's still wrapped in all the HTML-templates.
Now, I'm looking for a better solution. How do you handle different output formats or device-types in your MVC-applications?
I had an idea: just split the controller into two controllers: a data-controller and an output-controller.
The data-controller gets and sets data with help of the models, does
all the validating etc. It gets the data from the models and write it to a data-object
which is later passed to the view.
The output-controller loads the views and give them the data-object from the data-controller. There is an output-controller for each format or device-type: an output-controller for mobile-devices could load the mobile-views and add all the mobile-versions of stylesheets and scripts. A JSON-output-controller could load a view without all the html-template stuff and convert the data into JSON.
A little example:
<?php
class Controller_Data_User extends Controller_Data // Controller_Data defines a data-object $this->data
{
public function action_index()
{
$this->request->redirect('user/list');
}
public function action_list()
{
$this->data->users = ORM::factory('user')->find_all();
}
public function action_show($id)
{
$user = new Model_User((int) $id);
if (!$user->loaded()) {
throw new HTTP_Exception_404('User not found.');
}
$this->data->user = $user;
}
}
class Controller_Output_Desktop extends Controller_Output_HTML // Controller_Output_HTML loads a HTML-template
{
public function action_list($data)
{
$view = new View('user/list.desktop');
$view->set($data->as_array());
$this->template->body = $view;
}
public function action_show($data)
{
$view = new View('user/show.desktop');
$view->set($data->as_array());
$this->template->body = $view;
}
}
class Controller_Output_JSON extends Controller_Output // Controller_Output doesn't load a template
{
public function action_list($data)
{
$view = new View('user/list.json');
$view->users = json_encode($data->users->as_array());
$this->template = $view;
}
public function action_show($data)
{
$view = new View('user/show.json');
$view->user = json_encode($data->user);
$this->template = $view;
}
}
What do you think?
Hmm... From the 1st view it loooks strange, and somehow like fractal -- we are breaking on MVC one of our MVC -- C.
But why is this app returns so different results, based on point-of-entry (or device)?
The task of the controller is only to get the data and choose the view -- why do we need standalone logic for choosing something based on point-of-entry (device)?
I think these questions should be answered first. Somewhere could be some problem.
Also the cotroller should select only one view ideally, and dont' do "encode" or else with data, based on current output. I think all this should be in some kind of "layouts" or else. As data always the same and even different views should be the same -- only some aspects changes.