i have codes like this
function download(){
$id = $this->uri->segment(3);
$dat = $this->mikland->gidiklanfoto($id);
foreach ($dat as $item){
$name = $item->foto;
$data = file_get_contents(base_url()."/uploads/".$name); // filenya
force_download($name,$data);
}
redirect('cikland/viewiklan/'.$id);
}
when the function are running, redirect cannot run.,
somebody can help??
i think is a simple thing but i dont know the trick., thank's before
At the end of force_download() there is an exit() statement, so no code after a forced download will run.
And you are trying to have several files downloaded at the same time - using some sort of multipart mime type, that might or might not work, but not in the given case, because CI's force_download() does not seem to support that.
An alternative to that would be creating a temporary archive file which contains all the files for download; please have a look at the official documentation on compression and archives for that.
If you'd want to send a redirection header along with the file, you'd have to do it like this:
function download(){
// add this somewhere befor the download
header('Location: '.site_url('cikland/viewiklan/'.$id));
$id = $this->uri->segment(3);
$dat = $this->mikland->gidiklanfoto($id);
// only first item is downloaded
foreach ($dat as $item)
{
$name = $item->foto;
$data = file_get_contents(base_url()."/uploads/".$name); // filenya
force_download($name,$data);
}
}
But the question would remain how the browsers would deal with a redirect and content: most likely you would only get the redirect.
You need load url helper.
$this->load->helper('url');
after
redirect("cikland/viewiklan/$id", 'refresh');
or
redirect("cikland/viewiklan/$id", 'location', 301);
Font: http://ellislab.com/codeigniter%20/user-guide/helpers/url_helper.html
redirect() method redirects to a URL. You need to pass it a full URL (as it uses the header() function which according to the RFC for HTTP1.1 requires a full URL.
so you need to hard code the full url like the given example - redirect('http://www.yoursite.com/cikland/viewiklan/'.$id);
Related
I am using Laravel 4.
I have an old url that needs to be routable. It doesn't really matter what it's purpose is but it exists within the paypal systems and will be called regularly but cannot be changed (which is ridiculous I know).
I realise that this isn't the format url's are supposed to take in Laravel, but this is the url that will be called and I need to find a way to route it:
http://domain.com/forum/index.php?app=subscriptions&r_f_g=xxx-paypal
(xxx will be different on every request)
I can't figure out how to route this with laravel, i'd like to route it to the method PaypalController#ipbIpn so i've tried something like this:
Route::post('forum/index.php?app=subscriptions&r_f_g={id}-paypal', 'PaypalController#ipbIpn');
But this doesn't work, infact I can't even get this to work:
Route::post('forum/index.php', 'PaypalController#ipbIpn');
But this will:
Route::post('forum/index', 'PaypalController#ipbIpn');
So the question is how can I route the url, as it is at the top of this question, using Laravel?
For completeness I should say that this will always be a post not a get, but that shouldn't really make any difference to the solution.
Use this:
Route::post('forum/{file}', 'PaypalController#ipbIpn');
And then in the controller, use
public function forum($file) {
$request = Route::getRequest();
$q = (array) $request->query; // GET
$parameters = array();
foreach($q as $key => $pararr) {
$parameters = array_merge($parameters, $pararr);
}
}
You can then access the get parameters via e.g.
echo $parameters['app'];
you can use route redirection to mask and ending .php route ex:
Route::get('forum/index', ['uses'=> 'PaypalController#ipbIpn']);
Route::redirect('forum/index.php', 'forum/index');
I was wondering if someone could help me out.
Im building a forum into my codeigniter application and im having a little trouble figuring out how i build the segments.
As per the CI userguide the uri is built as follows
www.application.com/CLASS/METHOD/ARGUMENTS
This is fine except i need to structure that part a bit different.
In my forum i have categories and posts, so to view a category the following url is used
www.application.com/forums
This is fine as its the class name, but i want to have the next segment dynamic, for instance if i have a category called 'mycategory' and a post by the name of 'this-is-my-first-post', then the structure SHOULD be
www.application.com/forums/mycategory/this-is-my-first-post
I cant seem to achieve that because as per the documentation the 'mycategory' needs to be a method, even if i was to do something like /forums/category/mycategory/this-is-my-first-post it still gets confusing.
If anyone has ever done something like this before, could they shed a little light on it for me please, im quite stuck on this.
Cheers,
Nothing is confusing in the document but you are a little bit confused. Let me give you some suggestions.
You create a view where you create hyperlinks to be clicked and in the hyperlink you provide this instruction
First Post
In the controller you can easily get this
$category = $this->uri->segment(3);
$post = $this->uri->segment(4);
And now you can proceed.
If you think your requirements are something else you can use a hack i have created a method for this which dynamically assign segments.
Go to system/core/uri.php and add this method
function assing_segment($n,$num)
{
$this->segments[$n] = $num;
return $this->segments[$n];
}
How to use
$this->uri->assign_segment(3,'mycategory');
$this->uri->assign_segment(4,'this-is-my-first-post');
And if you have error 'The uri you submitted has disallowed characters' then go to application/config/config.php and add - to this
$config['permitted_uri_chars'] = 'a-z 0-9~%.:_\-';
You could make a route that forwards to a lookup function.
For example in your routes.php add a line something like;
$route['product/(:any)/(:any)'] = "forums/cat_lookup/$1/$2";
This function would then do a database lookup to find the category.
...
public function cat_lookup($cat, $post) {
$catid = $this->forum_model->get_by_name($cat);
if ($catid == FALSE) {
redirect('/home');
}
$post_id = $this->post_model->get_by_name($post);
/* whatever else you want */
// then call the function you want or load the view
$this->load->view('show_post');
}
...
This method will keep the url looking as you want and handle any problems if the category does not exist.Don't forget you can store the category/posts in your database using underscores and use the uri_title() function to make them pretty,
Set in within config/routes.php
$route['song-album/(:any)/:num'] = 'Home/song_album/$id';
fetch in function with help of uri segment.
$this->uri->segment(1);
Normally I would just use URL GET parameters but CodeIgniter doesn't seem to like them and none of the URL helper functions are designed for them, so I'm trying to do this the 'CodeIgniter way'.
I would like to build a page where the model can accept a number of different URI paramters, none necessarily present, and none having to be in any particular order, much like a regular URL query string with get parameters.
Let's say I have the following url:
http://example.com/site/data/name/joe/
Here not including the controller or the method there would be one parameter:
$params = $this->uri->uri_to_assoc(1);
print_r($params);
// output
array( [name] => [joe] )
If I wanted 'joe' to change to 'ray' I could do this:
echo anchor('name/ray');
Simple enough but what if there are more parameters and the position of the parameters are changing? Like:
http://example.com/site/data/town/losangeles/name/joe/
http://example.com/site/data/age/21/name/joe/town/seattle
Is there a way to just grab the URL and output it with just the 'name' parameter changed?
Edit: As per landons advice I took his script and set it up as a url helper function by creating the file:
application/helpers/MY_url_helper.php
Basically I rewrote the function current_url() to optionally accept an array of parameters that will be substituted into the current URI. If you don't pass the array the function acts as originally designed:
function current_url($vars = NULL)
{
$CI =& get_instance();
if ( ! is_array($vars))
{
return $CI->config->site_url($CI->uri->uri_string());
}
else
{
$start_index = 1;
$params = $CI->uri->uri_to_assoc($start_index);
foreach ($vars as $key => $value)
{
$params[$key] = $value;
}
$new_uri = $CI->uri->assoc_to_uri($params);
return $CI->config->site_url($new_uri);
}
}
It works OK. I think the bottom line is I do not like the 'CodeIgniter Way' and I will be looking at mixing segment based URL's with querystrings or another framework altogether.
You can use the assoc_to_uri() method to get it back to URI format:
<?php
// The segment offset to use for associative data (change me!)
$start_index = 1;
// Parse URI path into associative array
$params = $this->uri->uri_to_assoc($start_index);
// Change the value you want (change me!)
$params['name'] = 'ray';
// Convert back to path format
$new_uri = $this->uri->assoc_to_uri($params);
// Prepend the leading segments back to the URI
for ($i=1; $i<$start_index; $i++)
{
$new_uri = $this->uri->segment($i).'/'.$new_uri;
}
// Output anchor
echo anchor($new_uri);
I'd recommend wrapping this in a helper function of some sort. Happy coding!
Why not use CodeIgniter's built in URI Class? It allows you to select the relevant segments from the URL which you could use to create the anchor. However, unless you created custom routes, it would mean that your methods would need to accept more parameters.
To use the URI Class, you would have the following in your method:
echo anchor($this->uri->segment(3).'/ray');
Assuming /site/data/name are all CodeIgniter specific (/controller/method/parameter)
Now, I think this could be made a lot easier if you were using routes. Your route would look like this:
$route['site/data/name/(:any)'] = 'site/data/$1';
Effictively, your URL can be as detailed and specific as you want it to be, but in your code the function is a lot cleaner and the parameters are quite descriptive. You method would defined like this:
function data($name) { }
To extend your route to accept more parameters, your route for the the example URL "http://example.com/site/data/age/21/name/joe/town/seattle" you supplied would look like this:
$route['site/data/age/(:num)/name/(:any)/town/(:any)'] = 'controller/data/$1/$2/$3';
And your function would look like this:
function data($age, $name, $town) { }
$this->upload->display_errors()
shows the errors for all the files I am trying to upload.
How can I show the error for each file field ?
for example, if the user can upload 5 files and the third file is to big, I want to be able to tell him that this specific file is to big.
The functionality you are after is not built-in to the CI upload library. Here's CI's $this->upload->display_errors() method:
function display_errors($open = '<p>', $close = '</p>')
{
$str = '';
foreach ($this->error_msg as $val)
{
$str .= $open.$val.$close;
}
return $str;
}
It returns all the errors as a single string. You would need to adjust this accordingly, perhaps to return an array with the key for the respective file field.
You could use the $_FILES superglobal before hand, and check each field for errors, and then if there are no errors, call CI's do_upload()
In my codeigniter config I have $config['global_xss_filtering'] = TRUE;. In my admin section I have a ckeditor which generates the frontend content.
Everything that is typed and placed inside the editor works fine, images are displayed nice, html is working. All except flash. Whenever I switch to html mode and paste a youtube code piece it is escaped and the code is visible on the frontpage instead of showing a youtube movie.
If I set $config['global_xss_filtering'] = FALSE; the youtube code is passed like it should. This is because 'object', 'embed' etc are flagged as "naughty" by CI and thus escaped.
How can I bypass the xss filtering for this one controller method?
Turn it off by default then enable it for places that really need it.
For example, I have it turned off for all my controllers, then enable it for comments, pages, etc.
One thing you can do is create a MY_Input (or MY_Security in CI 2) like the one in PyroCMS and override the xss_clean method with an exact copy, minus the object|embed| part of the regex.
http://github.com/pyrocms/pyrocms/blob/master/system/pyrocms/libraries/MY_Security.php
It's one hell of a long way around, but it works.
Perhaps we could create a config option could be created listing the bad elements for 2.0?
My case was that I wanted global_xss_filtering to be on by default but sometimes I needed the $_POST (pst you can do this to any global php array e.g. $_GET...) data to be raw as send from the browser, so my solution was to:
open index.php in root folder of the project
added the following line of code $unsanitized_post = $_POST; after $application_folder = 'application'; (line #92)
then whenever I needed the raw $_POST I would do the following:
global $unsanitized_post;
print_r($unsanitized_post);
In CodeIgniter 2.0 the best thing to do is to override the xss_clean on the core CI library, using MY_Security.php put this on application/core folder then using /application/config.php
$config['xss_exclude_uris'] = array('controller/method');
here's the MY_Security.php https://gist.github.com/slick2/39f54a5310e29c5a8387:
<?php
/**
* CodeIgniter version 2
* Note: Put this on your application/core folder
*/
class MY_Security extends CI_Security {
/**
* Method: __construct();
* magic
*/
function __construct()
{
parent::__construct();
}
function xss_clean($str, $is_image = FALSE)
{
$bypass = FALSE;
/**
* By pass controllers set in /application/config/config.php
* config.php
* $config['xss_exclude_uris'] = array('controller/method')
*/
$config = new CI_Config;
$uri = new CI_URI;
$uri->_fetch_uri_string();
$uri->_explode_segments();
$controllers_list = $config->item('xss_exclude_uris');
// we need controller class and method only
if (!empty($controllers_list))
{
$segments = array(0 => NULL, 1 => NULL);
$segments = $uri->segment_array();
if (!empty($segments))
{
if (!empty($segments[1]))
{
$action = $segments[0] . '/' . $segments[1];
}
else
{
$action = $segments[0];
}
if (in_array($action, $controllers_list))
{
$bypass = TRUE;
}
}
// we unset the variable
unset($config);
unset($uri);
}
if ($bypass)
{
return $str;
}
else
{
return parent::xss_clean($str, $is_image);
}
}
}
Simple do the following on the views when displaying embedded object code like from YouTube and etc:
echo str_replace(array('<', '>'), array('<', '>'), $embed_filed);
The global XSS Filtering is only escaping (or converting) certain "dangerous" html tags like <html>
Simple Workaround:
Set $config['global_xss_filtering'] = TRUE;
Run your POST data through HTMLPurifier to remove any nasty <script> tags or javascript.
HTMLPurifier Docs
HTMLPurifier Codeigniter Integration
On the page where you receive the forms POST data use html_entity_decode() to undo what XSS filtering did.
//by decoding first, we remove everything that XSS filter did
//then we encode all characters equally.
$content = html_entity_decode($this->input->post('template_content'))
Then immediately run it through htmlentities()
$content = htmlentities($content);
Store as a Blob in MySQL database
When you want to display the
information to the user for editing run html_entity_decode()
This is how I did it. If anyone knows of a major flaw in what I did, please tell me. It seems to be working fine for me. Haven't had any unexpected errors.