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wp-content/plugins/wp-optimize/vendor/intervention/httpauth/src/AbstractVault.php

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+<?php
+
+namespace Intervention\HttpAuth;
+
+use Intervention\HttpAuth\Configurator\ArrayConfigurator;
+
+abstract class AbstractVault
+{
+    /**
+     * Environment
+     *
+     * @var Environment
+     */
+    protected $environment;
+
+    /**
+     * Name of realm for vault
+     *
+     * @var string
+     */
+    protected $realm;
+
+    /**
+     * Username for vault
+     * @var string
+     */
+    protected $username;
+
+    /**
+     * Password for vault
+     *
+     * @var string
+     */
+    protected $password;
+
+    /**
+     * Build directive for current vault
+     *
+     * @return Directive
+     */
+    abstract public function getDirective(): Directive;
+
+    /**
+     * Determine if vault is accessible by given key
+     *
+     * @param  Key    $key
+     * @return bool
+     */
+    abstract public function unlocksWithKey(Key $key): bool;
+
+    /**
+     * Create new instance
+     *
+     * @param mixed $realm
+     * @param mixed $username
+     * @param mixed $password
+     */
+    public function __construct($realm, $username, $password)
+    {
+        $this->checkParameterValidity([
+            'realm' => $realm,
+            'username' => $username,
+            'password' => $password,
+        ]);
+
+        $this->environment = new Environment();
+
+        $this->realm = $realm;
+        $this->username = $username;
+        $this->password = $password;
+    }
+
+    /**
+     * Throw exception if any of the given parameters are empty
+     *
+     * @param  array $parameters
+     * @return void
+     */
+    private function checkParameterValidity(array $parameters): void
+    {
+        foreach ($parameters as $key => $value) {
+            if (empty($value)) {
+                throw new Exception\InvalidParameterException(
+                    'Cannot create HTTP authentication vault. Parameter "' . $key . '" cannot be empty.'
+                );
+            }
+        }
+    }
+
+    /**
+     * Return key from current token
+     *
+     * @return Key
+     */
+    public function getKey(): Key
+    {
+        return $this->environment->getToken()->toKey();
+    }
+
+    /**
+     * Denies access for non-authenticated users
+     *
+     * @return void
+     */
+    public function secure(): void
+    {
+        if (! $this->unlocksWithKey($this->getKey())) {
+            $this->denyAccess();
+        }
+    }
+
+    /**
+     * Set name of realm
+     *
+     * @param string $realm
+     * @return AbstractVault
+     */
+    public function setRealm($realm): AbstractVault
+    {
+        $this->realm = $realm;
+
+        return $this;
+    }
+
+    /**
+     * Alias for setRealm()
+     *
+     * @param string $realm
+     * @return AbstractVault
+     */
+    public function realm($realm): AbstractVault
+    {
+        return $this->setRealm($realm);
+    }
+
+    /**
+     * Return current realm name
+     *
+     * @return string
+     */
+    public function getRealm()
+    {
+        return $this->realm;
+    }
+
+    /**
+     * Set username for current vault
+     *
+     * @param string $username
+     */
+    public function setUsername($username): AbstractVault
+    {
+        $this->username = $username;
+
+        return $this;
+    }
+
+    /**
+     * Alias for setUsername()
+     *
+     * @param string $username
+     */
+    public function username($username): AbstractVault
+    {
+        return $this->setUsername($username);
+    }
+
+    /**
+     * Return current username
+     *
+     * @return string
+     */
+    public function getUsername()
+    {
+        return $this->username;
+    }
+
+    /**
+     * Set password for current vault
+     *
+     * @param string $password
+     * @return AbstractVault
+     */
+    public function setPassword($password): AbstractVault
+    {
+        $this->password = $password;
+
+        return $this;
+    }
+
+    /**
+     * Alias for setPassword()
+     *
+     * @param  string $password
+     * @return AbstractVault
+     */
+    public function password($password): AbstractVault
+    {
+        return $this->setPassword($password);
+    }
+
+    /**
+     * Return current password
+     *
+     * @return string
+     */
+    public function getPassword()
+    {
+        return $this->password;
+    }
+
+    /**
+     * Set username and password at once
+     *
+     * @param  string $username
+     * @param  string $password
+     * @return AbstractVault
+     */
+    public function credentials($username, $password): AbstractVault
+    {
+        return $this->setUsername($username)->setPassword($password);
+    }
+
+    /**
+     * Sends HTTP 401 Header
+     *
+     * @return void
+     */
+    protected function denyAccess(): void
+    {
+        $protocol = isset($_SERVER['SERVER_PROTOCOL']) ? $_SERVER['SERVER_PROTOCOL'] : 'HTTP/1.1';
+        header($protocol . ' Unauthorized');
+        header('WWW-Authenticate: ' . (string) $this->getDirective());
+        exit('<strong>' . $protocol . ' 401 Unauthorized</strong>');
+    }
+}