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Updated 网页授权 (markdown)

安正超 2015-08-14 00:37:55 +08:00
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网页授权.md

@ -10,6 +10,74 @@
- 有 SESSION -> **最终业务界面**
- 没有 SESSION -> 用户**最终业务界面** -> **授权页** 完成授权存 SESSION -> 跳转到你的**最终业务界面**
流程图：
```
user -> /foo/bar (business page)
+------------------------+
| | No
| $_SESSION['openid']? |----------------------+
| | |
+------------------------+ |
| |
| |
| +--------------WeChat|Middleware------------------------------+
| | | |
| | +---------------redirect back with code--+----------------+
| | | | |
| | v | |
| | +---------------------+ | +---------------------+
| | | | | | |
| | | URL has code? |---No------------------------+---->| WeChat OAuth server |
| | | | redirect to WeChat | | |
| | +---------------------+ | +---------------------+
| | | |
| | | |
| | Yes |
Yes | | |
| | v |
| | +-----------------------------+ |
| | | | |
| | | get access_token && openid | |
| | | | |
| | +-----------------------------+ +- -- -- -- -- -- -+ |
| | | | |
| | + -optional - - - > get user detail | |
| | | | | |
| | | + -- -- -- -- -- -- |
| | | | |
| | | v |
| | | +- -- -- -- -- -- -+ |
| | | | |
| | v store user to DB.| |
| | +-------------------------------+ | | |
| | | | + -- -- -- -- -- -- |
| | | $_SESSION['openid'] = $openid | |
| | | | |
| | +-------------------------------+ |
| | | |
| +--------------------+----------------------------------------+
| |
+---------redirect to target page.-+
|
|
|
v
+------------------------+
| |
| display /foo/bar |
| |
+------------------------+
```
## 友情提示
授权逻辑不要写在业务页！！！ 不然你分享出去的链接会带你自己的 `code` 出去，这样就会判断不了是否已经授权。