v0.1

Author: forecho

.gitignore

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-assets/*
-!assets/.gitignore
-protected/runtime/*
-!protected/runtime/.gitignore
-protected/data/*.db
-themes/classic/views/
+# phpstorm project files
+.idea
+
+# netbeans project files
+nbproject
+
+# zend studio for eclipse project files
+.buildpath
+.project
+.settings
+
+# windows thumbnail cache
+Thumbs.db
+
+# composer vendor dir
+/vendor
+
+# composer itself is not needed
+composer.phar
+# composer.lock should not be committed as we always want the latest versions
+/composer.lock
+
+# Mac DS_Store Files
+.DS_Store

README.md

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+Yii2 Login ReturnUrl filter
+===========================
+Keeps current URL in session for login actions so we can return to it if needed.
+
+中文说明：登录之后自动跳转登录之前的页面
+
+Installation
+------------
+
+The preferred way to install this extension is through [composer](http://getcomposer.org/download/).
+
+Either run
+
+```
+php composer.phar require --prefer-dist yiier/yiier-return-url "*"
+```
+
+or add
+
+```
+"yiier/yiier-return-url": "*"
+```
+
+to the require section of your `composer.json` file.
+
+
+Usage
+-----
+
+In your controller add ReturnUrl filter to behaviors:
+
+```php
+public function behaviors()
+{
+    return [
+        'returnUrl' => [
+            'class' => 'yiier\returnUrl\ReturnUrl',
+            'uniqueIds' => ['site/qrcode', 'site/login', 'user/security/auth'] // 过滤掉不需要的 controller/action
+        ],
+    ];
+}
+```
+
+For access to previously visited url:
+
+```php
+Yii::$app->user->getReturnUrl();
+```

ReturnUrl.php

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+<?php
+
+/**
+ * author     : forecho <caizhenghai@gmail.com>
+ * createTime : 2016/3/16 10:14
+ * description:
+ */
+namespace yiier\ReturnUrl;
+
+use Yii;
+use yii\base\ActionFilter;
+
+class ReturnUrl extends ActionFilter
+{
+    /**
+     * @var array
+     */
+    public $uniqueIds = ['site/login'];
+
+    /**
+     * @param \yii\base\Action $action
+     * @return bool
+     */
+    public function beforeAction($action)
+    {
+        if (Yii::$app->user->isGuest) {
+            if (!(Yii::$app->request->getIsAjax() || $this->isValidate())) {
+                Yii::$app->user->setReturnUrl(Yii::$app->request->getUrl());
+            }
+        }
+        return true;
+    }
+
+    /**
+     * @return bool
+     */
+    private function isValidate()
+    {
+        if (in_array(Yii::$app->controller->action->uniqueId, $this->uniqueIds)) {
+            return true;
+        }
+        return false;
+    }
+}

composer.json

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+{
+    "name": "yiier/yiier-return-url",
+    "description": "Keeps current URL in session for login actions so we can return to it if needed.",
+    "type": "yii2-extension",
+    "keywords": ["yii2","filter","ReturnUrl",""],
+    "license": "BSD-3-Clause",
+    "authors": [
+        {
+            "name": "forecho",
+            "email": "caizhenghai@gmail.com"
+        }
+    ],
+    "require": {
+        "yiisoft/yii2": "*"
+    },
+    "autoload": {
+        "psr-4": {
+            "yiier\\returnUrl\\": ""
+        }
+    }
+}