PHP JWT Encoder/Decoder

README.md

Download

$ cd ~/ && mkdir .jwt && cd .jwt && curl https://gist.githubusercontent.com/kinncj/b245cbbf17cce28e14a2c899116acb05/raw/03b714540d36cc65b0d6c356cebc009293b70919/jwt.php > jwt.php

php jwt.php encode HS256 foo "{\"name\":\"Kinn\"}" 

Usage

php jwt.php encode RSA256 my_private_key_file my_json_content
php jwt.php encode HS256 my_key my_json_content
php jwt.php encode RSA256 my_private_key_file my_json_content.json
php jwt.php encode HS256 my_key my_json_content.json
php jwt.php decode RSA256 my_public_key_file my_key_content
php jwt.php decode HS256 my_key my_key_content

php jwt.php encode HS256 foo "{\"name\":\"Kinn\"}"
php jwt.php decode HS256 foo eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJuYW1lIjoiS2lubiJ9.l4JOS3Xisor8lgjs8_BvnR-o-KfUd1EZauh5vrf05CU

jwt.php

<?php
`curl https://getcomposer.org/download/2.1.3/composer.phar > composer`;
`chmod +x composer`;
`./composer require firebase/php-jwt`;
require_once './vendor/autoload.php';

use Firebase\JWT\JWT;

echo "Usage: php jwt.php encode RSA256 my_private_key_file my_json_content".PHP_EOL;
echo "Usage: php jwt.php encode HS256 my_key my_json_content".PHP_EOL;
echo "Usage: php jwt.php encode RSA256 my_private_key_file my_json_content.json".PHP_EOL;
echo "Usage: php jwt.php encode HS256 my_key my_json_content.json".PHP_EOL;

echo "Usage: php jwt.php decode RSA256 my_public_key_file my_key_content".PHP_EOL;
echo "Usage: php jwt.php decode HS256 my_key my_key_content".PHP_EOL;

define("SCRIPT_NAME_VAR", 0);
define("OPERATION_VAR", 1);
define("KEY_TYPE_VAR", 2);
define("KEY_VAR", 3);
define("CONTENT_VAR", 4);
define("VARS", [
  "SCRIPT_NAME_VAR" => SCRIPT_NAME_VAR,
  "OPERATION_VAR"   => OPERATION_VAR,
  "KEY_TYPE_VAR"    => KEY_TYPE_VAR,
  "KEY_VAR"         => KEY_VAR,
  "CONTENT_VAR"     => CONTENT_VAR,
]);

$keyTypes = ['HS256' ,'RS256'];

validate($argv ?: [], $keyTypes);

define("SCRIPT_NAME", $argv[SCRIPT_NAME_VAR]);
define("OPERATION", $argv[OPERATION_VAR]);
define("KEY_TYPE", $argv[KEY_TYPE_VAR]);

$__CONTENT = $argv[CONTENT_VAR];

switch (KEY_TYPE) {
  case "RSA256":
    define("KEY", file_get_contents($argv[KEY_VAR]));
    break;
  default:
    define("KEY", $argv[KEY_VAR]);
    break;
}

if (strpos($__CONTENT, ".json") === (strlen($__CONTENT) - strlen(".json"))) {
  $__CONTENT = file_get_contents($__CONTENT);
}


define("CONTENT", $__CONTENT);

function validate($args, $keyTypes)
{
  foreach (VARS as $var => $value) {
    if (empty($args[$value])) {
      throw new \Exception(sprintf('Undefined value for "%s"', $var));
    }
  }
  
  if ( ! in_array($args[KEY_TYPE_VAR], $keyTypes)) {
    throw new \Exception(sprintf('Invalid key type "%s"', $args[KEY_TYPE_VAR]));
  }
}

switch (OPERATION) {
  case "encode":
    encode();
    break;
  default:
    decode();
}

function encode() {
  echo JWT::encode(json_decode(CONTENT), KEY, KEY_TYPE).PHP_EOL;
}

function decode() {
  var_dump((array) JWT::decode(CONTENT, KEY, [KEY_TYPE])).PHP_EOL;
}