我无法使用 jwt 验证用户

Question

I am trying to authenticate with Jwt. I found many examples about Jwt, but there is a place I don't understand. I can easily generate tokens using the library, but I cannot verify here is the library i use

composer require firebase/php-jwt

I'm creating a token

   // Allow from any origin
if (isset($_SERVER['HTTP_ORIGIN'])) {
    header("Access-Control-Allow-Origin: {$_SERVER['HTTP_ORIGIN']}");
    header('Access-Control-Allow-Credentials: true');
    header('Access-Control-Max-Age: 86400');    // cache for 1 day
}

// Access-Control headers are received during OPTIONS requests
if ($_SERVER['REQUEST_METHOD'] == 'OPTIONS') {

    if (isset($_SERVER['HTTP_ACCESS_CONTROL_REQUEST_METHOD']))
        header("Access-Control-Allow-Methods: GET, POST, OPTIONS");         

    if (isset($_SERVER['HTTP_ACCESS_CONTROL_REQUEST_HEADERS']))
        header("Access-Control-Allow-Headers:        {$_SERVER['HTTP_ACCESS_CONTROL_REQUEST_HEADERS']}");

    exit(0);
}


require_once('vendor/autoload.php');
use \Firebase\JWT\JWT; 
define('SECRET_KEY','Super-Secret-Key'); 
define('ALGORITHM','HS256');  


$postdata = file_get_contents("php://input");
$request = json_decode($postdata);

$action = $_GET['action'];

login.php

   if ($action == 'login') {

 $email = 'freaky@jolly.com';
 $password = '12345678';


if($email == "freaky@jolly.com" && $password == "12345678"){

     $iat = time(); // time of token issued at
     $nbf = $iat + 10; //not before in seconds
     $exp = $iat + 60; // expire time of token in seconds

     $token = array(
         "iss" => "http://example.org",
         "aud" => "http://example.com",
         "iat" => $iat,
         "nbf" => $nbf,
         "exp" => $exp,
             "data" => array(
             "id" => 11,
             "email" => $email
         )
     );

    http_response_code(200);

    $jwt = JWT::encode($token, SECRET_KEY);


     $data_insert=array(
         'access_token' => $jwt, 
         'id'   => '007',
         'name' => 'Jolly',
         'time' => time(),
         'username' => 'FreakyJolly', 
         'email' => 'contact@freakyjolly.com', 
         'status' => "success",
         'message' => "Successfully Logged In"
     );


 }else{
     $data_insert=array(
     "data" => "0",
     "status" => "invalid",
     "message" => "Invalid Request"
     ); 
 } 

} else if($action == 'stuff'){

    if (! isset($_SERVER['argv'][1])) {
        exit('Please provide a key to verify');
    }
    $jwt = $_SERVER['argv'][1];

    try {
        $decoded = JWT::decode($jwt, SECRET_KEY, array(ALGORITHM));
        print_r($decoded);

    }catch (Exception $e){

     http_response_code(401);
     $data_insert=array(
     //"data" => $data_from_server,
     "jwt" => $jwt,
     "status" => "error",
     "message" => $e->getMessage()
     );

   } 
}

echo json_encode($data_insert);

Create Token: http://www.ismailcakir.com/jwt/test2.php?action=login

{"access_token":"eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiJodHRwOlwvXC9leGFtcGxlLm9yZyIsImF1ZCI6Imh0dHA6XC9cL2V4YW1wbGUuY29tIiwiaWF0IjoxNTg2NDM4NTg4LCJuYmYiOjE1ODY0Mzg1OTgsImV4cCI6MTU4NjQzODY0OCwiZGF0YSI6eyJpZCI6MTEsImVtYWlsIjoiZnJlYWt5QGpvbGx5LmNvbSJ9fQ.NylRpDkb4cLMxMGAg9ovmLerNf0dLPBHegqmPRDRxlE","id":"007","name":"Jolly","time":1586438588,"username":"FreakyJolly","email":"contact@freakyjolly.com","status":"success","message":"Successfully Logged In"}

Stuff: http://www.ismailcakir.com/jwt/test2.php?action=stuff

Here I get the warning that the argv variable is undefined and I can't call the token you created. After creating the token, I need to be able to call it without using a cookie or session. I tried many methods but I could not understand how to take.

Answer 1

As per documentation :

Note: This variable is not available when register_argc_argv is disabled.

Which most likely is your case. You can enable this in the config or alternatively use $_SERVER superglobal which I recommend as this is immune to config differences and always works (incl. CLI):

$jwt = $_SERVER['argv'][1];

Same for $argc .

Answer 2

Use the following instruction to check what you get as arguments:

<?php
var_dump($argv);
?>

From the official documentation, this is available as well as: $_SERVER['argv'] .

Please also note that $argv and $argc need to be declared global, while trying to access within a class method.

Answer 3

To be able to get the token with:

$ _SERVER ['argv'] [1]

Then, you need to run the script from the command line (CLI), ie: php <script_name> argc1 arg2... , then you will be able to the parameters values from there, if you use a browser, or an API call, you need to use an HTTP method (GET/POST),

Or with a JSON receiving call:

file_get_contents("php://input");

It seems that you put everything in your code, your code needs to be reformulated.

If you generate the token in a file script, and you need to send it back to a different page, you need to use a GET/POST request, if the user provides a value and you need to save it or use it, you need to receive it with a method, below an example about how your code can work properly (many ways could be provided):

 if ($action == 'login') {

 $email = 'freaky@jolly.com';
 $password = '12345678';


if($email == "freaky@jolly.com" && $password == "12345678"){

     $iat = time(); // time of token issued at
     $nbf = $iat + 10; //not before in seconds
     $exp = $iat + 60; // expire time of token in seconds

     $token = array(
         "iss" => "http://example.org",
         "aud" => "http://example.com",
         "iat" => $iat,
         "nbf" => $nbf,
         "exp" => $exp,
             "data" => array(
             "id" => 11,
             "email" => $email
         )
     );

    http_response_code(200);

    $jwt = JWT::encode($token, SECRET_KEY);

    $_SESSION['token'] = $jwt;
    // $_COOKIE['token'] = $jwt ;
    // GET and POST can be used via a web form or CURL

     $data_insert=array(
         'access_token' => $jwt, 
         'id'   => '007',
         'name' => 'Jolly',
         'time' => time(),
         'username' => 'FreakyJolly', 
         'email' => 'contact@freakyjolly.com', 
         'status' => "success",
         'message' => "Successfully Logged In"
     );


 }else{
     $data_insert=array(
     "data" => "0",
     "status" => "invalid",
     "message" => "Invalid Request"
     ); 
 } 

} else if($action == 'stuff'){

   /*
    * How to receive the generated token
    */
    if (!isset($_SESSION['token']))
    // or (!isset($_POST['token']));
    // or (!isset($_GET['token'])); 
    // or (!isset($_COOKIE['token']));
    {
        exit('Please provide a key to verify');
    }

    $jwt = $_SESSION['token']; 

    // or $jwt = $_GET['token']; 
    // or $jwt = $_POST['token']; 
    // or $jwt = $_COOKIE['token'];

    try {
        $decoded = JWT::decode($jwt, SECRET_KEY, array(ALGORITHM));
        print_r($decoded);

    }catch (Exception $e){

     http_response_code(401);
     $data_insert=array(
     //"data" => $data_from_server,
     "jwt" => $jwt,
     "status" => "error",
     "message" => $e->getMessage()
     );

   } 
}

echo json_encode($data_insert);

You can take a look on:

REST API Authentication Example in PHP – JWT Tutorial

https://www.codeofaninja.com/2018/09/rest-api-authentication-example-php-jwt-tutorial.html