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<small><time class="date dt-published" datetime="2021-02-06T00:00:00+08:00">6 February 2021</time> - 字数统计4038 - 阅读大约需要13分钟 - Hits: <span id="/2021/02/06/wechatbot.html" class="visitors">Loading...</span></small>
<h1 class="p-name">自制一个简单的微信聊天机器人</h1>
<p class="view">by <a class="p-author h-card" href="//github.com/Mabbs">mayx</a></p>
<div id="outdate" style="display:none;">
<hr /><p>
这是一篇创建于 <span id="outime"></span> 天前的文章,其中的信息可能已经有所发展或是发生改变。
</p>
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<script>
daysold = Math.floor((new Date().getTime() - new Date("Sat, 06 Feb 2021 00:00:00 +0800").getTime()) / (24 * 60 * 60 * 1000));
if (daysold > 90) {
document.getElementById("outdate").style.display = "block";
document.getElementById("outime").innerHTML = daysold;
}
</script>
<hr />
<b>AI摘要</b>
<p id="ai-output">这篇文章讲述了作者自制一个微信聊天机器人的过程。起初被Server酱·TurboMini版激发了兴趣决定利用微信公众号的API实现一个图片发送或聊天功能。作者遇到的主要问题是微信被动回复需在5秒内这对在国外免费虚拟空间且网络连接较差的情况下的图片转发造成了阻碍。为解决这个问题作者将聊天机器人功能作为备选使用了图灵机器人API进行文字交互并提到了可能的改进方案如定时上传图片、设置多条命令分开负责上传和发送、或以图文形式每天发送等。</p>
<hr />
<ul><li><a href="#起因">起因</a></li><li><a href="#代码">代码</a></li><li><a href="#使用方法">使用方法</a></li><li><a href="#暂时废弃的代码">暂时废弃的代码</a></li><li><a href="#替代的方案">替代的方案</a></li></ul>
<hr />
<main class="post-content e-content" role="main"><p>感觉API好像还挺有意思<!--more--></p>
<h1 id="起因">
<a href="#起因"><svg class='octicon' viewBox='0 0 16 16' version='1.1' width='16' height='32' aria-hidden='true'><path fill-rule='evenodd' d='M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z'></path></svg></a> 起因
</h1>
<p>前两天我<a href="/2021/02/02/serverchan.html">制作了Server酱·TurboMini版</a>之后感觉微信公众号的API好像还挺有意思的总的来说也不是很复杂没有用什么特别奇怪的东西而且文档还算清晰这一点还是很不错的。 </p><p>
于是最近我就开始看微信开放文档其实我刚写完Server酱·TurboMini版之后我就在想好多人在QQ上搞那种只要说来点什么图机器人就会发图片的一个功能。我感觉这个好像有点意思因为我平时用微信更多一些既然有测试号这样好的平台那么我就应该搞点这样的功能。 </p><p>
我花了一天的时间通读整个文档然后把程序写了出来然而发生了很糟糕的事情那就是微信被动回复的时间要求必须在5秒以内否则就会报错然而让服务器转发图片本来就很耗时又加上我用的是垃圾国外免费的虚拟空间中国与国际互联网的连接又很差劲导致5秒内程序必定不可能来得及回复。 </p><p>
没办法我花了一天时间写的东西我一定要水一篇文章所以我想了想干脆写成聊天机器人吧那个东西也简单像我博客上的伊斯特瓦尔就用了聊天机器人有现成的API啥都好搞。于是我稍微改动了一下代码把发图机器人改成了聊天机器人。</p>
<h1 id="代码">
<a href="#代码"><svg class='octicon' viewBox='0 0 16 16' version='1.1' width='16' height='32' aria-hidden='true'><path fill-rule='evenodd' d='M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z'></path></svg></a> 代码
</h1>
<div class="language-php highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="cp">&lt;?php</span>
<span class="nv">$appid</span><span class="o">=</span><span class="n">微信appID</span><span class="p">;</span>
<span class="nv">$secret</span><span class="o">=</span><span class="n">微信appsecret</span><span class="p">;</span>
<span class="nv">$appkey</span><span class="o">=</span><span class="n">图灵机器人APIkey</span><span class="p">;</span>
<span class="k">function</span> <span class="n">checkSignature</span><span class="p">()</span>
<span class="p">{</span>
<span class="nv">$signature</span> <span class="o">=</span> <span class="nv">$_GET</span><span class="p">[</span><span class="s2">"signature"</span><span class="p">];</span>
<span class="nv">$timestamp</span> <span class="o">=</span> <span class="nv">$_GET</span><span class="p">[</span><span class="s2">"timestamp"</span><span class="p">];</span>
<span class="nv">$nonce</span> <span class="o">=</span> <span class="nv">$_GET</span><span class="p">[</span><span class="s2">"nonce"</span><span class="p">];</span>
<span class="nv">$token</span> <span class="o">=</span> <span class="s1">'mayx'</span><span class="p">;</span>
<span class="nv">$tmpArr</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span><span class="nv">$token</span><span class="p">,</span> <span class="nv">$timestamp</span><span class="p">,</span> <span class="nv">$nonce</span><span class="p">);</span>
<span class="nb">sort</span><span class="p">(</span><span class="nv">$tmpArr</span><span class="p">,</span> <span class="no">SORT_STRING</span><span class="p">);</span>
<span class="nv">$tmpStr</span> <span class="o">=</span> <span class="nb">implode</span><span class="p">(</span> <span class="nv">$tmpArr</span> <span class="p">);</span>
<span class="nv">$tmpStr</span> <span class="o">=</span> <span class="nb">sha1</span><span class="p">(</span> <span class="nv">$tmpStr</span> <span class="p">);</span>
<span class="k">if</span><span class="p">(</span> <span class="nv">$tmpStr</span> <span class="o">==</span> <span class="nv">$signature</span> <span class="p">){</span>
<span class="k">return</span> <span class="kc">true</span><span class="p">;</span>
<span class="p">}</span><span class="k">else</span><span class="p">{</span>
<span class="k">return</span> <span class="kc">false</span><span class="p">;</span>
<span class="p">}</span>
<span class="p">}</span>
<span class="k">if</span><span class="p">(</span><span class="nf">checkSignature</span><span class="p">()){</span>
<span class="k">if</span><span class="p">(</span><span class="nv">$_GET</span><span class="p">[</span><span class="s2">"echostr"</span><span class="p">]){</span>
<span class="k">echo</span> <span class="nv">$_GET</span><span class="p">[</span><span class="s2">"echostr"</span><span class="p">];</span>
<span class="p">}</span><span class="k">else</span><span class="p">{</span>
<span class="nv">$content</span> <span class="o">=</span> <span class="nb">file_get_contents</span><span class="p">(</span><span class="s2">"php://input"</span><span class="p">);</span>
<span class="nv">$p</span> <span class="o">=</span> <span class="nb">xml_parser_create</span><span class="p">();</span>
<span class="nb">xml_parse_into_struct</span><span class="p">(</span><span class="nv">$p</span><span class="p">,</span> <span class="nv">$content</span><span class="p">,</span> <span class="nv">$vals</span><span class="p">,</span> <span class="nv">$index</span><span class="p">);</span>
<span class="nb">xml_parser_free</span><span class="p">(</span><span class="nv">$p</span><span class="p">);</span>
<span class="k">if</span><span class="p">(</span><span class="nv">$vals</span><span class="p">[</span><span class="nv">$index</span><span class="p">[</span><span class="s1">'MSGTYPE'</span><span class="p">][</span><span class="mi">0</span><span class="p">]][</span><span class="s1">'value'</span><span class="p">]</span> <span class="o">==</span> <span class="s1">'text'</span><span class="p">){</span>
<span class="k">echo</span> <span class="s1">'&lt;xml&gt;
&lt;ToUserName&gt;&lt;![CDATA['</span><span class="mf">.</span><span class="nv">$vals</span><span class="p">[</span><span class="nv">$index</span><span class="p">[</span><span class="s1">'FROMUSERNAME'</span><span class="p">][</span><span class="mi">0</span><span class="p">]][</span><span class="s1">'value'</span><span class="p">]</span><span class="mf">.</span><span class="s1">']]&gt;&lt;/ToUserName&gt;
&lt;FromUserName&gt;&lt;![CDATA['</span><span class="mf">.</span><span class="nv">$vals</span><span class="p">[</span><span class="nv">$index</span><span class="p">[</span><span class="s1">'TOUSERNAME'</span><span class="p">][</span><span class="mi">0</span><span class="p">]][</span><span class="s1">'value'</span><span class="p">]</span><span class="mf">.</span><span class="s1">']]&gt;&lt;/FromUserName&gt;
&lt;CreateTime&gt;'</span><span class="mf">.</span><span class="nb">time</span><span class="p">()</span><span class="mf">.</span><span class="s1">'&lt;/CreateTime&gt;
&lt;MsgType&gt;&lt;![CDATA[text]]&gt;&lt;/MsgType&gt;
&lt;Content&gt;&lt;![CDATA['</span><span class="mf">.</span><span class="nb">json_decode</span><span class="p">(</span><span class="nb">file_get_contents</span><span class="p">(</span><span class="s1">'https://www.tuling123.com/openapi/api'</span><span class="p">,</span> <span class="kc">false</span><span class="p">,</span> <span class="nb">stream_context_create</span><span class="p">(</span><span class="k">array</span><span class="p">(</span><span class="s1">'http'</span> <span class="o">=&gt;</span> <span class="k">array</span><span class="p">(</span><span class="s1">'method'</span> <span class="o">=&gt;</span> <span class="s1">'POST'</span><span class="p">,</span><span class="s1">'header'</span> <span class="o">=&gt;</span> <span class="s1">'Content-type:application/x-www-form-urlencoded'</span><span class="p">,</span><span class="s1">'content'</span> <span class="o">=&gt;</span> <span class="nb">http_build_query</span><span class="p">(</span><span class="k">array</span><span class="p">(</span><span class="s1">'key'</span> <span class="o">=&gt;</span> <span class="nv">$appkey</span><span class="p">,</span><span class="s1">'info'</span> <span class="o">=&gt;</span> <span class="nv">$vals</span><span class="p">[</span><span class="nv">$index</span><span class="p">[</span><span class="s1">'CONTENT'</span><span class="p">][</span><span class="mi">0</span><span class="p">]][</span><span class="s1">'value'</span><span class="p">],</span><span class="s1">'userid'</span> <span class="o">=&gt;</span> <span class="nv">$vals</span><span class="p">[</span><span class="nv">$index</span><span class="p">[</span><span class="s1">'FROMUSERNAME'</span><span class="p">][</span><span class="mi">0</span><span class="p">]][</span><span class="s1">'value'</span><span class="p">])))))),</span><span class="kc">true</span><span class="p">)[</span><span class="s1">'text'</span><span class="p">]</span><span class="mf">.</span><span class="s1">']]&gt;&lt;/Content&gt;
&lt;/xml&gt;'</span><span class="p">;</span>
<span class="p">}</span>
<span class="p">}</span>
<span class="p">}</span><span class="k">else</span><span class="p">{</span>
<span class="k">echo</span> <span class="s1">'error'</span><span class="p">;</span>
<span class="p">}</span>
</code></pre></div></div>
<h1 id="使用方法">
<a href="#使用方法"><svg class='octicon' viewBox='0 0 16 16' version='1.1' width='16' height='32' aria-hidden='true'><path fill-rule='evenodd' d='M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z'></path></svg></a> 使用方法
</h1>
<p><a href="/2021/02/02/serverchan.html">上一篇文章</a>一样,同样需要去<a href="https://mp.weixin.qq.com/debug/cgi-bin/sandbox?t=sandbox/login">申请</a>一个测试号不过有一点不一样那就是这一次需要配置接口配置信息URL就填这个程序能在互联网上访问的地址而Token则是填mayx。为什么呢因为我在代码里这样写的啊……如果想改可以把对应的变量改成自己喜欢的值总之保证两边一样就行。 </p><p>
提交之后接口就配置好了,不过还没有结束,为了能使用机器人,还得要去注册<a href="http://www.turingapi.com/">图灵机器人</a>,毕竟又不可能自己去写一个聊天机器人,那个需要的资源太多了。现在那个图灵机器人好像必须要实名才能用,那总之混互联网的人遇到这种问题应该也不是问题了吧。 </p><p>
注册好机器人之后就直接把APIKey粘到代码里面然后整个代码就可以正常运行了现在你就可以和你的机器人聊天了。</p>
<h1 id="暂时废弃的代码">
<a href="#暂时废弃的代码"><svg class='octicon' viewBox='0 0 16 16' version='1.1' width='16' height='32' aria-hidden='true'><path fill-rule='evenodd' d='M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z'></path></svg></a> 暂时废弃的代码
</h1>
<div class="language-php highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="nb">define</span><span class="p">(</span><span class="s1">'MULTIPART_BOUNDARY'</span><span class="p">,</span> <span class="s1">'--------------------------'</span><span class="mf">.</span><span class="nb">microtime</span><span class="p">(</span><span class="kc">true</span><span class="p">));</span>
<span class="nv">$file_contents</span> <span class="o">=</span> <span class="nb">file_get_contents</span><span class="p">(</span><span class="nb">json_decode</span><span class="p">(</span><span class="nb">file_get_contents</span><span class="p">(</span><span class="s1">'https://www.pixiv.net/ajax/illust/'</span><span class="mf">.</span><span class="nb">json_decode</span><span class="p">(</span><span class="nb">file_get_contents</span><span class="p">(</span><span class="s1">'https://api.loli.st/pixiv/'</span><span class="p">),</span><span class="kc">true</span><span class="p">)[</span><span class="s1">'illust_id'</span><span class="p">]</span><span class="mf">.</span><span class="s1">'/pages'</span><span class="p">),</span><span class="kc">true</span><span class="p">)[</span><span class="s1">'body'</span><span class="p">][</span><span class="mi">0</span><span class="p">][</span><span class="s1">'urls'</span><span class="p">][</span><span class="s1">'regular'</span><span class="p">],</span> <span class="kc">false</span><span class="p">,</span> <span class="nb">stream_context_create</span><span class="p">(</span><span class="k">array</span><span class="p">(</span><span class="s1">'http'</span> <span class="o">=&gt;</span> <span class="k">array</span><span class="p">(</span><span class="s1">'method'</span> <span class="o">=&gt;</span> <span class="s1">'GET'</span><span class="p">,</span><span class="s1">'header'</span> <span class="o">=&gt;</span> <span class="s2">"referer: https://www.pixiv.net/"</span><span class="p">))));</span>
<span class="nv">$context</span> <span class="o">=</span> <span class="nb">stream_context_create</span><span class="p">(</span><span class="k">array</span><span class="p">(</span>
<span class="s1">'http'</span> <span class="o">=&gt;</span> <span class="k">array</span><span class="p">(</span>
<span class="s1">'method'</span> <span class="o">=&gt;</span> <span class="s1">'POST'</span><span class="p">,</span>
<span class="s1">'header'</span> <span class="o">=&gt;</span> <span class="s1">'Content-Type: multipart/form-data; boundary='</span><span class="mf">.</span><span class="no">MULTIPART_BOUNDARY</span><span class="p">,</span>
<span class="s1">'content'</span> <span class="o">=&gt;</span> <span class="s2">"--"</span><span class="mf">.</span><span class="no">MULTIPART_BOUNDARY</span><span class="mf">.</span><span class="s2">"</span><span class="se">\r\n</span><span class="s2">"</span><span class="mf">.</span>
<span class="s2">"Content-Disposition: filename=</span><span class="se">\"</span><span class="s2">image.png</span><span class="se">\"\r\n</span><span class="s2">"</span><span class="mf">.</span>
<span class="s2">"Content-Type: image/png</span><span class="se">\r\n\r\n</span><span class="s2">"</span><span class="mf">.</span>
<span class="nv">$file_contents</span><span class="mf">.</span><span class="s2">"</span><span class="se">\r\n</span><span class="s2">"</span><span class="mf">.</span>
<span class="s2">"--"</span><span class="mf">.</span><span class="no">MULTIPART_BOUNDARY</span><span class="mf">.</span><span class="s2">"--</span><span class="se">\r\n</span><span class="s2">"</span>
<span class="p">)</span>
<span class="p">));</span>
<span class="k">echo</span> <span class="s1">'&lt;xml&gt;
&lt;ToUserName&gt;&lt;![CDATA['</span><span class="mf">.</span><span class="nv">$vals</span><span class="p">[</span><span class="nv">$index</span><span class="p">[</span><span class="s1">'FROMUSERNAME'</span><span class="p">][</span><span class="mi">0</span><span class="p">]][</span><span class="s1">'value'</span><span class="p">]</span><span class="mf">.</span><span class="s1">']]&gt;&lt;/ToUserName&gt;
&lt;FromUserName&gt;&lt;![CDATA['</span><span class="mf">.</span><span class="nv">$vals</span><span class="p">[</span><span class="nv">$index</span><span class="p">[</span><span class="s1">'TOUSERNAME'</span><span class="p">][</span><span class="mi">0</span><span class="p">]][</span><span class="s1">'value'</span><span class="p">]</span><span class="mf">.</span><span class="s1">']]&gt;&lt;/FromUserName&gt;
&lt;CreateTime&gt;'</span><span class="mf">.</span><span class="nb">time</span><span class="p">()</span><span class="mf">.</span><span class="s1">'&lt;/CreateTime&gt;
&lt;MsgType&gt;&lt;![CDATA[image]]&gt;&lt;/MsgType&gt;
&lt;Image&gt;
&lt;MediaId&gt;&lt;![CDATA['</span><span class="mf">.</span><span class="nb">json_decode</span><span class="p">(</span><span class="nb">file_get_contents</span><span class="p">(</span><span class="s1">'https://api.weixin.qq.com/cgi-bin/media/upload?access_token='</span><span class="mf">.</span><span class="nb">json_decode</span><span class="p">(</span><span class="nb">file_get_contents</span><span class="p">(</span><span class="s1">'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&amp;appid='</span><span class="mf">.</span><span class="nv">$appid</span><span class="mf">.</span><span class="s1">'&amp;secret='</span><span class="mf">.</span><span class="nv">$secret</span><span class="p">),</span><span class="kc">true</span><span class="p">)[</span><span class="n">access_token</span><span class="p">]</span><span class="mf">.</span><span class="s1">'&amp;type=image'</span><span class="p">,</span> <span class="kc">false</span><span class="p">,</span> <span class="nv">$context</span><span class="p">),</span><span class="kc">true</span><span class="p">)[</span><span class="s1">'media_id'</span><span class="p">]</span><span class="mf">.</span><span class="s1">']]&gt;&lt;/MediaId&gt;
&lt;/Image&gt;
&lt;/xml&gt;'</span><span class="p">;</span>
</code></pre></div></div>
<p>其实这段代码不是不能工作,只是它不能符合要求,没办法及时的把图片上传到微信服务器上,也没办法及时回复……也许如果有很好的条件,这段代码就可以运行了吧…… </p><p>
我也试过如果不是Pixiv上面的图片而是图片在很小而且也很快的服务器上时这个代码是能运行的。</p>
<h1 id="替代的方案">
<a href="#替代的方案"><svg class='octicon' viewBox='0 0 16 16' version='1.1' width='16' height='32' aria-hidden='true'><path fill-rule='evenodd' d='M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z'></path></svg></a> 替代的方案
</h1>
<p>我看完文档之后好像也没有主动向用户发送信息的接口只有被动发送的那这5秒问题估计是没法解决了吧……不过我看网上说如果用客服接口好像就没有这样的限制总之我回头试试看吧。 </p><p>
另外我也想了几种方案:</p>
<ol>
<li>每天定时向微信服务器上传图片需要时只发送ID不再在得到请求时再上传。</li>
<li>设置2条命令一条用于向微信服务器上传另一条负责取回。不过这样有个问题就是ID不太好传可能还得缓存一下其实上面那个一样也得缓存。</li>
<li>搞成图文形式,每天定时发送,就像日报一样</li>
</ol>
<p>目前大概就想出这么多,更多的睡起来再慢慢想吧~</p></main>
<small style="display: block">tags: <a rel="category tag" class="p-category" href="/search.html?keyword=%E5%BE%AE%E4%BF%A1"><em>微信</em></a> - <a rel="category tag" class="p-category" href="/search.html?keyword=%E8%81%8A%E5%A4%A9"><em>聊天</em></a> - <a rel="category tag" class="p-category" href="/search.html?keyword=%E6%9C%BA%E5%99%A8%E4%BA%BA"><em>机器人</em></a> - <a rel="category tag" class="p-category" href="/search.html?keyword=PHP"><em>PHP</em></a> <span style="float: right;"><a href="https://gitlab.com/mayx/mayx.gitlab.io/tree/master/_posts/2021-02-06-wechatbot.md">查看原始文件</a></span></small>
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