Can I extend Traefik in a way to open the request header check user identity and update request url?

Can I extend Traefik in a way to open the request header check user identity and update request url?

By : Michael H
Date : October 17 2020, 06:10 AM
this one helps. For the time being, the only way to add a custom middleware to Traefik is to fork it and add your custom middleware into the source code and build it for yourself. Actually this is not too difficult but of course it comes with all the downsides of forking. There is an example here: https://github.com/negasus/traefik2-luascript. You need to edit it a bit because it is somewhat outdated but I was able to add my custom middleware by following it.
code :

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php open an asynchronous request and allow client to check if the request has finished

php open an asynchronous request and allow client to check if the request has finished

By : Nguyen Manh Cuong
Date : March 29 2020, 07:55 AM
will be helpful for those in need so Christian Davénpost on this page inspired my solution to my own problem which is as follows:
code :
if(array_key_exists('async', $_GET)){
   //short-task spawns the child(fakeLongTask())
    //short task, aka child task

class testing{
     * asynch trigger a event(parent/short Task)
    public static function curl_request_async(){
        //set file path to a unique file name for you...maybe consider using tmp type functionality
            $file = 'C:\\filepath\\logFile.txt';
        $fp = curl_init('http://localhost/testing.php?file='.$file);
            //send the request off
            //because I am not sure that the socket is closed when it interperets the header, and because its a best practice

            echo 'we are waiting because the process is still going and the lock is still imposed.<br />'.PHP_EOL;

     * this is to mimic a long task that we might be running.
     * basic setup is clear the buffer, set the raw header to the close value to let the browser
     * know that the request has 'finished' so it can return to the calling function after the output is sent.
     * specify the size of the information being sent as this is required for the header. Then send the buffer and start
     * processing asynchronously
     * child/long/orphaned Task
    public static function fakeLongTask(){
        //clear the buffer
        //specify that this is a non-persistant connection
        header('Connection: close');
        //if the user kills the script ignore there request and keep on, nice feature to avoid early termination
        //if you need to send any information to the user specify that here
        $size = ob_get_length();
        header("Content-Length: $size");
        //since flush might not get everything we must do a 'power flush'
        //from this point on the original function that had the curl op in it will continue and this will also continue on asynchronously
        //create the new file(this is our only way to communicate to the parent script as this function is now running rouge.
        $file = $_GET['file'];
        $fileHandle = fopen($file, 'w') or die('');
        //now that we have our file lets do our process, or in this case just stall for 10 seconds
        //we are done with our task delete the file
Identity 2.0: Creating custom ClaimsIdentity eg: User.Identity.GetUserById<int>(int id) for Per Request Validation

Identity 2.0: Creating custom ClaimsIdentity eg: User.Identity.GetUserById<int>(int id) for Per Request Validation

By : user2946756
Date : March 29 2020, 07:55 AM
wish help you to fix your issue The IIdentity object in MVC is going to be the issued token that corresponds to the identity of the user. This differs from whatever object or method you use on the back-end that represents the user (say a User class). If you want to use the user's identity to get a custom value then you need to put it into their claims object (ie the identity token) when they sign in (or at some other point in time).
You can add a claim at any time by giving the user an identity.
code :
var identity = await UserManager.CreateIdentityAsync(user, DefaultAuthenticationTypes.ApplicationCookie);
identity.AddClaim(new Claim("PhoneNumber", "123-456-7890"));
AuthenticationManager.SignIn(new AuthenticationProperties() { IsPersistent = isPersistent }, identity);
public static string GetPhoneNumber(this IIdentity identity)
    return ((ClaimsIdentity)identity).FindFirstValue("PhoneNumber");
@using MyProject.Web.Extensions

<img src="@User.Identity.GetPhoneNumber()" />
Proxy a request - get a parameter from URL, add a header and update request URL using Nginx

Proxy a request - get a parameter from URL, add a header and update request URL using Nginx

By : salazar_x
Date : March 29 2020, 07:55 AM
Does that help Since the data exists within the request URI itself (available by the $uri variable in nginx), you can parse that using the nginx lua module. nginx will need to be compiled with lua for this to work, see: openresty's nginx lua module.
From there you can use the set_by_lua_block or set_by_lua_file directive given $uri as a parameter.
code :
location / {
    set_by_lua_file $var_to_set /path/to/script.lua $uri;
    # $var_to_set would contain the result of the script from this point
    proxy_set_header X-Replica $var_to_set;
function parse_uri( uri )
    parsed_uri = uri
    -- Parse logic here
    return parsed_uri

return parse_uri( ngx.arg[1] )
How do I check an OWIN request before HttpContext.Current.User.Identity is set?

How do I check an OWIN request before HttpContext.Current.User.Identity is set?

By : Daniel
Date : March 29 2020, 07:55 AM
like below fixes the issue You could create an owin middleware which checks the Ip adress as the first step in the chain. Place it as the first middleware being attached to the IAppBuilder to make sure it will invoke before the rest of the chain
code :
public class Startup
    public void Configuration(IAppBuilder app)
        app.Use((context, next) =>
            if (!IsIpAdressOk(context.Request)) //if the ip is invalid, stop the process and just return a response to the client
                return context.Response.WriteAsync("Get lost!");
            return Next.Invoke(context); //if the ip is correct then continue to the next middleware

        ...add OAuthAuthorizationServerProvider and the rest here   
Duplicate request with `Sec-Fetch-User: ?1` header messes up my request throttling

Duplicate request with `Sec-Fetch-User: ?1` header messes up my request throttling

By : Josh Cai
Date : March 29 2020, 07:55 AM
hope this fix your issue The answer can be found into this IETF draft, ?1 actually means true. So the first request you observe is likely being triggered by the user (when submitting the form), and the second one isn't.
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