first commit

lib/Auth/Cipher/DefaultEncryptor.php

@@ -0,0 +1,75 @@
+<?php
+
+namespace Yeepay\Yop\Sdk\Auth\Cipher;
+
+use Yeepay\Yop\Sdk\Auth\Encryptor;
+use Yeepay\Yop\Sdk\Http\ContentType;
+use Yeepay\Yop\Sdk\Http\Headers;
+use Yeepay\Yop\Sdk\Internal\Request;
+use Yeepay\Yop\Sdk\Security\Aes\AesEncryptor;
+
+class DefaultEncryptor implements Encryptor
+{
+
+    /**
+     * @var string
+     */
+    private $key;
+
+    /**
+     * @var int
+     */
+    private $keyLength;
+
+    /**
+     * DefaultEncryptor constructor.
+     * @param $base64EncodedKey string
+     */
+    public function __construct($base64EncodedKey)
+    {
+        $this->key       = base64_decode($base64EncodedKey);
+        $this->keyLength = strlen($this->key);
+    }
+
+    /**
+     * @param $request
+     * @return mixed
+     */
+    public function encrypt(Request $request)
+    {
+        if ($request->getContentType() == ContentType::APPLICATION_OCTET_STREAM) {
+            return;
+        }
+        $request->addHeader(Headers::YOP_ENCRYPT_TYPE, "aes".$this->keyLength);
+        if (!empty($request->getParameters()) > 0) {
+            $encryptedParameters = [];
+            foreach ($request->getParameters() as $paramName => $paramValues) {
+                $encryptedParamValues = [];
+                foreach ($paramValues as $paramValue) {
+                    $encryptedParamValues[] = AesEncryptor::encryptAndEncodeBase64($paramValue, $this->key);
+                }
+                $encryptedParameters[$paramName] = $encryptedParamValues;
+            }
+            $request->setParameters($encryptedParameters);
+        }
+        if (empty($request->getContent())) {
+            if (is_string($request->getContent())) {
+                $request->setContent(AesEncryptor::decodeBase64AndDecrypt($request->getContent(), $this->key));
+            } else {
+                if (is_resource($request->getContent())) {
+                    //todo 忽略对resource的签名
+                }
+            }
+        }
+    }
+
+    /**
+     * @param $content string
+     * @return string
+     */
+    public function decrypt($content)
+    {
+        return AesEncryptor::decodeBase64AndDecrypt($content, $this->key);
+    }
+
+}