使用PHP调用微信API,使用微信做通知类应用的方法
相比于最常用的短信和邮件的通知方式,微信有着无可比拟的优势:快速、免费,特别适合用在报警通知类应用上。 但是微信并没有提供现成的api接口来给好友发送信息,公众平台也只能被动回复。那么如何才能主动发信息呢?答案就在微信网页版。 仔细观察微信网页
相比于最常用的短信和邮件的通知方式,微信有着无可比拟的优势:快速、免费,特别适合用在报警通知类应用上。
但是微信并没有提供现成的api接口来给好友发送信息,公众平台也只能被动回复。那么如何才能主动发信息呢?答案就在微信网页版。
仔细观察微信网页版和服务器请求的记录,发现完全就是以oauth授权方式运行,完全不用考虑cookie。据此,分析请求记录,就能模拟网页版登录微信,从而实现主动向用户发送消息的功能。
以下是用到的请求:
1. 获取uuid,从返回的数据中,找到uuid
https://login.weixin.qq.com/jslogin?appid=wx782c26e4c19acffb&redirect_uri=https%3A%2F%2Fwx.qq.com%2Fcgi-bin%2Fmmwebwx-bin%2Fwebwxnewloginpage&fun=new&lang=zh_CN
2. 获取二维码图片,然后使用微信扫描
https://login.weixin.qq.com/qrcode/$this->uuid?t=webwx
3. 获取令牌,轮询,直到从返回的数据中找到window.redirect_uri=xxxx的代码,xxx就是令牌url
https://login.weixin.qq.com/cgi-bin/mmwebwx-bin/login?uuid=$this->uuid&tip=1
4. 访问令牌url,获取sid。从返回的头信息中,分析出Uin,sid和uuid,保存起来
xxxxxx
5. 初始化微信,从返回的数据中读取UserName
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6. 获取Skey
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7. 发送消息,POST方式,
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发送消息的经典过程为:
- 初始化对象,设置Uin,sid,uuid
- 更新Skey
- 发送信息
但是微信网页版长时间不登录会失效,所以还需要写个任务去ping
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微信的数据都是以json格式传输的,但是他这个json比较特殊,还需要用特别的函数来实现
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