Refactor code for first release

Author: Strobotti

.gitignore

@@ -2,3 +2,4 @@
 .phpunit.result.cache
 composer.lock
 vendor
+coverage.xml

.travis.yml

@@ -2,8 +2,15 @@ language: php
 
 php:
   - 7.2
+  - 7.3
 
 sudo: false
 
-before_script: composer install
-script: phpunit
+before_script:
+  - composer install
+
+script:
+  - phpunit
+
+after_success:
+  - bash <(curl -s https://codecov.io/bash)

README.md

@@ -1,2 +1,120 @@
 # php-jwk
+
 A small PHP library to handle JWKs (Json Web Keys)
+
+This library helps to create json web key sets from PEM and is also able to pull out PEMs from json web key sets.
+
+Please note that **only RSA keys are supported at the moment!**
+
+See [JSON Web Key RFC](https://tools.ietf.org/html/rfc7517) for reference.
+
+## Installation
+
+This library requires PHP version 7.2 or higher and can be installed with composer:
+
+```bash
+composer require strobotti/php-jwk
+```
+
+## Example usage
+
+See full example [here](blob/master/examples/full-flow.php).
+
+### Create a key-object from PEM
+
+```php
+<?php
+
+$pem = <<<'EOT'
+-----BEGIN PUBLIC KEY-----
+MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4dGQ7bQK8LgILOdLsYzf
+ZjkEAoQeVC/aqyc8GC6RX7dq/KvRAQAWPvkam8VQv4GK5T4ogklEKEvj5ISBamdD
+Nq1n52TpxQwI2EqxSk7I9fKPKhRt4F8+2yETlYvye+2s6NeWJim0KBtOVrk0gWvE
+Dgd6WOqJl/yt5WBISvILNyVg1qAAM8JeX6dRPosahRVDjA52G2X+Tip84wqwyRpU
+lq2ybzcLh3zyhCitBOebiRWDQfG26EH9lTlJhll+p/Dg8vAXxJLIJ4SNLcqgFeZe
+4OfHLgdzMvxXZJnPp/VgmkcpUdRotazKZumj6dBPcXI/XID4Z4Z3OM1KrZPJNdUh
+xwIDAQAB
+-----END PUBLIC KEY-----
+EOT;
+
+$options = [
+   'use' => 'sig',
+   'alg' => 'RS256',
+   'kid' => 'eXaunmL',
+];
+
+$keyFactory = new Strobotti\JWK\KeyFactory();
+$key = $keyFactory->createFromPem($pem, $options);
+
+echo "$key";
+```
+
+Outputs:
+
+```json
+{
+    "kty": "RSA",
+    "use": "sig",
+    "alg": "RS256",
+    "kid": "eXaunmL",
+    "n": "4dGQ7bQK8LgILOdLsYzfZjkEAoQeVC_aqyc8GC6RX7dq_KvRAQAWPvkam8VQv4GK5T4ogklEKEvj5ISBamdDNq1n52TpxQwI2EqxSk7I9fKPKhRt4F8-2yETlYvye-2s6NeWJim0KBtOVrk0gWvEDgd6WOqJl_yt5WBISvILNyVg1qAAM8JeX6dRPosahRVDjA52G2X-Tip84wqwyRpUlq2ybzcLh3zyhCitBOebiRWDQfG26EH9lTlJhll-p_Dg8vAXxJLIJ4SNLcqgFeZe4OfHLgdzMvxXZJnPp_VgmkcpUdRotazKZumj6dBPcXI_XID4Z4Z3OM1KrZPJNdUhxw",
+    "e": "AQAB"
+}
+```
+
+### Create a JWK set (jwks) from a key
+
+```php
+<?php
+// ...pick up from the previous example
+
+$keySet = new \Strobotti\JWK\KeySet();
+$keySet->addKey($key);
+
+echo "$keySet" ;
+
+```
+
+Outputs:
+
+```json
+{
+    "keys": [
+        {
+            "kty": "RSA",
+            "use": "sig",
+            "alg": "RS256",
+            "kid": "eXaunmL",
+            "n": "4dGQ7bQK8LgILOdLsYzfZjkEAoQeVC_aqyc8GC6RX7dq_KvRAQAWPvkam8VQv4GK5T4ogklEKEvj5ISBamdDNq1n52TpxQwI2EqxSk7I9fKPKhRt4F8-2yETlYvye-2s6NeWJim0KBtOVrk0gWvEDgd6WOqJl_yt5WBISvILNyVg1qAAM8JeX6dRPosahRVDjA52G2X-Tip84wqwyRpUlq2ybzcLh3zyhCitBOebiRWDQfG26EH9lTlJhll-p_Dg8vAXxJLIJ4SNLcqgFeZe4OfHLgdzMvxXZJnPp_VgmkcpUdRotazKZumj6dBPcXI_XID4Z4Z3OM1KrZPJNdUhxw",
+            "e": "AQAB"
+        }
+    ]
+}
+```
+
+### Get a key from keyset by `kid` and convert it to PEM
+
+```php
+<?php
+// ...pick up from the previous example
+
+$key = $keySet->getKeyById('eXaunmL');
+$pem = (new \Strobotti\JWK\KeyConverter())->keyToPem($key);
+
+echo "$pem";
+
+```
+
+Outputs:
+
+```text
+-----BEGIN PUBLIC KEY-----
+MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4dGQ7bQK8LgILOdLsYzf
+ZjkEAoQeVC/aqyc8GC6RX7dq/KvRAQAWPvkam8VQv4GK5T4ogklEKEvj5ISBamdD
+Nq1n52TpxQwI2EqxSk7I9fKPKhRt4F8+2yETlYvye+2s6NeWJim0KBtOVrk0gWvE
+Dgd6WOqJl/yt5WBISvILNyVg1qAAM8JeX6dRPosahRVDjA52G2X+Tip84wqwyRpU
+lq2ybzcLh3zyhCitBOebiRWDQfG26EH9lTlJhll+p/Dg8vAXxJLIJ4SNLcqgFeZe
+4OfHLgdzMvxXZJnPp/VgmkcpUdRotazKZumj6dBPcXI/XID4Z4Z3OM1KrZPJNdUh
+xwIDAQAB
+-----END PUBLIC KEY-----
+```

examples/full-flow.php

@@ -0,0 +1,44 @@
+<?php
+
+include '../vendor/autoload.php';
+
+use Strobotti\JWK\KeyFactory;
+
+echo "Building an RSA JWK from pem:" . PHP_EOL;
+
+$pem = <<<'EOT'
+-----BEGIN PUBLIC KEY-----
+MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4dGQ7bQK8LgILOdLsYzf
+ZjkEAoQeVC/aqyc8GC6RX7dq/KvRAQAWPvkam8VQv4GK5T4ogklEKEvj5ISBamdD
+Nq1n52TpxQwI2EqxSk7I9fKPKhRt4F8+2yETlYvye+2s6NeWJim0KBtOVrk0gWvE
+Dgd6WOqJl/yt5WBISvILNyVg1qAAM8JeX6dRPosahRVDjA52G2X+Tip84wqwyRpU
+lq2ybzcLh3zyhCitBOebiRWDQfG26EH9lTlJhll+p/Dg8vAXxJLIJ4SNLcqgFeZe
+4OfHLgdzMvxXZJnPp/VgmkcpUdRotazKZumj6dBPcXI/XID4Z4Z3OM1KrZPJNdUh
+xwIDAQAB
+-----END PUBLIC KEY-----
+EOT;
+
+$options = [
+    'use' => 'sig',
+    'alg' => 'RS256',
+    'kid' => 'eXaunmL',
+];
+
+$keyFactory = new KeyFactory();
+$key = $keyFactory->createFromPem($pem, $options);
+
+echo $key . PHP_EOL . PHP_EOL;
+
+echo "Adding the key to the KeySet:" . PHP_EOL;
+
+$keySet = new \Strobotti\JWK\KeySet();
+$keySet->addKey($key);
+
+echo $keySet . PHP_EOL . PHP_EOL;
+
+echo "Fetching the key by it's ID (`kid`) and convert it back to PEM:" . PHP_EOL;
+
+$key = $keySet->getKeyById('eXaunmL');
+$pem = (new \Strobotti\JWK\KeyConverter())->keyToPem($key);
+
+echo $pem . PHP_EOL . PHP_EOL;

phpunit.xml

@@ -6,4 +6,12 @@
             <directory>tests</directory>
         </testsuite>
     </testsuites>
+    <filter>
+        <whitelist>
+            <directory>./src/</directory>
+        </whitelist>
+    </filter>
+    <logging>
+        <log type="coverage-clover" target="clover.xml"/>
+    </logging>
 </phpunit>